WorldWideScience

Sample records for analysis laboratory application

  1. Laboratory laser reflectance measurement and applications to asteroid surface analysis

    Science.gov (United States)

    Shaw, A.; Daly, M. G.; Cloutis, E. A.; Tait, K. T.; Izawa, M. R. M.; Barnouin, O. S.; Hyde, B. C.; Nicklin, I.

    2014-07-01

    Introduction Laboratory reflectance measurement of asteroid analogs is an important tool for interpreting the reflectance of asteroids. One dominant factor affecting how measured reflectance changes as a function of phase angle (180° minus the scattering angle) is surface roughness [1], which is related to grain size. A major goal of this study is to be able to use the angular distributions (phase functions) of scattered light from various regions on an asteroid surface to determine the relative grain size between those regions. Grain size affects the spectral albedo and continuum slopes of surface materials, has implications in terms of understanding geologic processes on asteroids and is also valuable for the planning and operations of upcoming missions to asteroids, such as the New Frontiers OSIRIS-REx sample return mission to the asteroid (101955) Bennu [2]. Information on surface roughness is particularly powerful when combined with other datasets, such as thermal inertia maps (e.g., a smooth, low-backscatter surface of low thermal inertia likely contains fine grains). Approach To better constrain the composition and surface texture of Bennu, we are conducting experiments to investigate the laser return signature of terrestrial and meteorite analogs to Bennu. The objective is to understand the nature of laser returns given possible compositional, grain size and slope distributions on the surface of Bennu to allow surface characterization, particularly surface grain size, which would significantly aid efforts to identify suitable sites for sampling by the OSIRIS-REx mission. Setup A 1064-nm laser is used to determine the reflectance of Bennu analogs and their constituents (1064 nm is the wavelength of many laser altimeters including the one planned to fly on OSIRIS-REx). Samples of interest include serpentinites (greenalite, etc.), magnetite, and shungite. To perform the experiments, a goniometer has been built. This instrument allows reflectance measurements

  2. Thermogravimetric Analysis Laboratory

    Data.gov (United States)

    Federal Laboratory Consortium — At NETL’s Thermogravimetric Analysis Laboratory in Morgantown, WV, researchers study how chemical looping combustion (CLC) can be applied to fossil energy systems....

  3. Uniprocessor Performance Analysis of a Representative Workload of Sandia National Laboratories' Scientific Applications.

    Energy Technology Data Exchange (ETDEWEB)

    Charles Laverty

    2005-10-01

    UNIPROCESSOR PERFORMANCE ANALYSIS OF A REPRESENTATIVE WORKLOAD OF SANDIA NATIONAL LABORATORIES' SCIENTIFIC APPLICATIONS Master of Science in Electrical Engineering New Mexico State University Las Cruces, New Mexico, 2005 Dr. Jeanine Cook, Chair Throughout the last decade computer performance analysis has become absolutely necessary to maximum performance of some workloads. Sandia National Laboratories (SNL) located in Albuquerque, New Mexico is no different in that to achieve maximum performance of large scientific, parallel workloads performance analysis is needed at the uni-processor level. A representative workload has been chosen as the basis of a computer performance study to determine optimal processor characteristics in order to better specify the next generation of supercomputers. Cube3, a finite element test problem developed at SNL is a representative workload of their scientific workloads. This workload has been studied at the uni-processor level to understand characteristics in the microarchitecture that will lead to the overall performance improvement at the multi-processor level. The goal of studying vthis workload at the uni-processor level is to build a performance prediction model that will be integrated into a multi-processor performance model which is currently being developed at SNL. Through the use of performance counters on the Itanium 2 microarchitecture, performance statistics are studied to determine bottlenecks in the microarchitecture and/or changes in the application code that will maximize performance. From source code analysis a performance degrading loop kernel was identified and through the use of compiler optimizations a performance gain of around 20% was achieved.

  4. Applications Analysis: Principles and Examples from Various Distributed Computer Applications at Sandia National Laboratories New Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Bateman, Dennis; Evans, David; Jensen, Dal; Nelson, Spencer

    1999-08-01

    As information systems have become distributed over many computers within the enterprise, managing those applications has become increasingly important. This is an emerging area of work, recognized as such by many large organizations as well as many start-up companies. In this report, we present a summary of the move to distributed applications, some of the problems that came along for the ride, and some specific examples of the tools and techniques we have used to analyze distributed applications and gain some insight into the mechanics and politics of distributed computing.

  5. Laboratory analysis of stardust.

    Science.gov (United States)

    Zinner, Ernst

    2013-02-01

    Tiny dust grains extracted from primitive meteorites are identified to have originated in the atmospheres of stars on the basis of their anomalous isotopic compositions. Although isotopic analysis with the ion microprobe plays a major role in the laboratory analysis of these stardust grains, many other microanalytical techniques are applied to extract the maximum amount of information.

  6. Exploration Laboratory Analysis

    Science.gov (United States)

    Krihak, M.; Ronzano, K.; Shaw, T.

    2016-01-01

    The Exploration Laboratory Analysis (ELA) project supports the Exploration Medical Capability (ExMC) risk to minimize or reduce the risk of adverse health outcomes and decrements in performance due to in-flight medical capabilities on human exploration missions. To mitigate this risk, the availability of inflight laboratory analysis instrumentation has been identified as an essential capability for manned exploration missions. Since a single, compact space-ready laboratory analysis capability to perform all exploration clinical measurements is not commercially available, the ELA project objective is to demonstrate the feasibility of emerging operational and analytical capability as a biomedical diagnostics precursor to long duration manned exploration missions. The initial step towards ground and flight demonstrations in fiscal year (FY) 2015 was the down selection of platform technologies for demonstrations in the space environment. The technologies selected included two Small Business Innovation Research (SBIR) performers: DNA Medicine Institutes rHEALTH X and Intelligent Optical Systems later flow assays combined with Holomics smartphone analyzer. The selection of these technologies were based on their compact size, breadth of analytical capability and favorable ability to process fluids in a space environment, among several factors. These two technologies will be advanced to meet ground and flight demonstration success criteria and requirements that will be finalized in FY16. Also, the down selected performers will continue the technology development phase towards meeting prototype deliverables in either late 2016 or 2017.

  7. Gait Analysis Laboratory

    Science.gov (United States)

    1976-01-01

    Complete motion analysis laboratory has evolved out of analyzing walking patterns of crippled children at Stanford Children's Hospital. Data is collected by placing tiny electrical sensors over muscle groups of child's legs and inserting step-sensing switches in soles of shoes. Miniature radio transmitters send signals to receiver for continuous recording of abnormal walking pattern. Engineers are working to apply space electronics miniaturization techniques to reduce size and weight of telemetry system further as well as striving to increase signal bandwidth so analysis can be performed faster and more accurately using a mini-computer.

  8. Nuclear Reactor Engineering Analysis Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Carlos Chavez-Mercado; Jaime B. Morales-Sandoval; Benjamin E. Zayas-Perez

    1998-12-31

    The Nuclear Reactor Engineering Analysis Laboratory (NREAL) is a sophisticated computer system with state-of-the-art analytical tools and technology for analysis of light water reactors. Multiple application software tools can be activated to carry out different analyses and studies such as nuclear fuel reload evaluation, safety operation margin measurement, transient and severe accident analysis, nuclear reactor instability, operator training, normal and emergency procedures optimization, and human factors engineering studies. An advanced graphic interface, driven through touch-sensitive screens, provides the means to interact with specialized software and nuclear codes. The interface allows the visualization and control of all observable variables in a nuclear power plant (NPP), as well as a selected set of nonobservable or not directly controllable variables from conventional control panels.

  9. Instrument Synthesis and Analysis Laboratory

    Science.gov (United States)

    Wood, H. John

    2004-01-01

    The topics addressed in this viewgraph presentation include information on 1) Historic instruments at Goddard; 2) Integrated Design Capability at Goddard; 3) The Instrument Synthesis and Analysis Laboratory (ISAL).

  10. Small Sat Analysis Laboratory Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Develop Small Satellite Analysis Laboratory (SatLab): A simulation-of-simulations framework to integrate component and engineering simulations into a single larger...

  11. Fracture mapping in clays: the design and application of a mobile gas geochemistry laboratory for the analysis of soil gases

    International Nuclear Information System (INIS)

    Integrated soil gas analyses for helium, radon, carbon dioxide, oxygen and organic gases allow the accurate interpretation of soil gas signatures as indicators of underlying structure. The most important features observed in the patterns of soil gas behaviour are large variations over faults and fractures. Structures such as these provide channelways for fluid movement in the upper crust. The construction of a mobile gas geochemistry laboratory for the analysis of soil gases at field investigation sites, and the subsequent trials carried out to evaluate the laboratory, clearly show that the soil gas investigation technique is accurate and viable as an independent site investigation method for the study of fracturing and groundwater movement around potential waste repository sites. (author)

  12. In-Flight Laboratory Analysis

    Science.gov (United States)

    Baumann, David; Perusek, Gail; Nelson, Emily; Krihak, Michael; Brown, Dan

    2012-01-01

    One-year study objectives align with HRP requirements. HRP requirements include measurement panels for research and medical operations - These measurement panels are distinctly different. Instrument requirements are defined - Power, volume and mass not quite a critical limitation as for medical operations (deep space exploration missions). One-year evaluation goals will lead HHC towards in-flight laboratory analysis capability.

  13. Laboratory instruction for nuclear engineering application experiments

    International Nuclear Information System (INIS)

    This report contains several laboratory instruction texts for 'Nuclear Engineering Application Experiments', which has been offered to Graduate students of Graduate School of Engineering at Kyoto University from 1970's. These experiments have been carried out by using experimental facilities; a research reactor, a critical assembly, accelerators, and a hot laboratory at Kyoto University Research Institute. (author)

  14. 7 CFR 160.17 - Laboratory analysis.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 3 2010-01-01 2010-01-01 false Laboratory analysis. 160.17 Section 160.17 Agriculture... STANDARDS FOR NAVAL STORES Methods of Analysis, Inspection, Sampling and Grading § 160.17 Laboratory analysis. The analysis and laboratory testing of naval stores shall be conducted, so far as is...

  15. Safety Analysis Report for the use of hazardous production materials in photovoltaic applications at the National Renewable Energy Laboratory

    International Nuclear Information System (INIS)

    To ensure the continued safety of SERI's employees, the community, and the environment, NREL commissioned an internal audit of its photovoltaic operations that used hazardous production materials (HPMs). As a result of this audit, NREL management voluntarily suspended all operations using toxic and/or pyrophoric gases. This suspension affected seven laboratories and ten individual deposition systems. These activities are located in Building 16, which has a permitted occupancy of Group B, Division 2 (B-2). NREL management decided to do the following. (1) Exclude from this SAR all operations which conformed, or could easily be made to conform, to B-2 Occupancy requirements. (2) Include in this SAR all operations that could be made to conform to B-2 Occupancy requirements with special administrative and engineering controls. (3) Move all operations that could not practically be made to conform to B-2 Occupancy requirements to alternate locations. In addition to the layered set of administrative and engineering controls set forth in this SAR, a semiquantitative risk analysis was performed on 30 various accident scenarios. Twelve presented only routine risks, while 18 presented low risks. Considering the demonstrated safe operating history of NREL in general and these systems specifically, the nature of the risks identified, and the layered set of administrative and engineering controls, it is clear that this facility falls within the DOE Low Hazard Class. Each operation can restart only after it has passed an Operational Readiness Review, comparing it to the requirements of this SAR, while subsequent safety inspections will ensure future compliance

  16. Safety analysis report for the use of hazardous production materials in photovoltaic applications at the National Renewable Energy Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Crandall, R.S.; Nelson, B.P.; Moskowitz, P.D.; Fthenakis, V.M.

    1992-07-01

    To ensure the continued safety of SERI's employees, the community, and the environment, NREL commissioned an internal audit of its photovoltaic operations that used hazardous production materials (HPMS). As a result of this audit, NREL management voluntarily suspended all operations using toxic and/or pyrophoric gases. This suspension affected seven laboratories and ten individual deposition systems. These activities are located in Building 16, which has a permitted occupancy of Group B, Division 2 (B-2). NREL management decided to do the following. (1) Exclude from this SAR all operations which conformed, or could easily be made to conform, to B-2 Occupancy requirements. (2) Include in this SAR all operations that could be made to conform to B-2 Occupancy requirements with special administrative and engineering controls. (3) Move all operations that could not practically be made to conform to B-2 occupancy requirements to alternate locations. In addition to the layered set of administrative and engineering controls set forth in this SAR, a semiquantitative risk analysis was performed on 30 various accident scenarios. Twelve presented only routine risks, while 18 presented low risks. Considering the demonstrated safe operating history of NREL in general and these systems specifically, the nature of the risks identified, and the layered set of administrative and engineering controls, it is clear that this facility falls within the DOE Low Hazard Class. Each operation can restart only after it has passed an Operational Readiness Review, comparing it to the requirements of this SAR, while subsequent safety inspections will ensure future compliance. This document contains the appendices to the NREL safety analysis report.

  17. Creation of a dynamic database and analysis of LIDAR measurements in web format at the Laboratory of Environmental Laser Applications at the Nuclear and Energy Research Institute

    International Nuclear Information System (INIS)

    The LIDAR system (Light Detection and Ranging) laser remote sensing at the Nuclear and Energy Research Institute - Laboratory of Environmental Laser Applications allows on line measurements of variations in the concentrations of atmospheric aerosols by sending a laser beam to the atmosphere and collecting the backscattered light. Such a system supplies a great number of physical parameters that must be managed in an agile form to the attainment of a real time analysis. Database implementation therefore becomes an important toll of communication and graphical visualization of measurements. A criterion for classification of this valuable information was adopted, establishing defined levels of storage from specific characteristics of the determined data types. The compilation and automation of these measurements will promote optimized integration between data, analysis and retrieval of the resulting properties and of the atmosphere, improving future research and data analysis. (author)

  18. Pulmonary Testing Laboratory Computer Application

    OpenAIRE

    Johnson, Martin E.

    1980-01-01

    An interactive computer application reporting patient pulmonary function data has been developed by Washington, D.C. VA Medical Center staff. A permanent on-line data base of patient demographics, lung capacity, flows, diffusion, arterial blood gases and physician interpretation is maintained by a minicomputer at the hospital.

  19. Safety Analysis Report for the use of hazardous production materials in photovoltaic applications at the National Renewable Energy Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Crandall, R.S.; Nelson, B.P. [National Renewable Energy Lab., Golden, CO (United States); Moskowitz, P.D.; Fthenakis, V.M. [Brookhaven National Lab., Upton, NY (United States)

    1992-07-01

    To ensure the continued safety of SERI`s employees, the community, and the environment, NREL commissioned an internal audit of its photovoltaic operations that used hazardous production materials (HPMs). As a result of this audit, NREL management voluntarily suspended all operations using toxic and/or pyrophoric gases. This suspension affected seven laboratories and ten individual deposition systems. These activities are located in Building 16, which has a permitted occupancy of Group B, Division 2 (B-2). NREL management decided to do the following. (1) Exclude from this SAR all operations which conformed, or could easily be made to conform, to B-2 Occupancy requirements. (2) Include in this SAR all operations that could be made to conform to B-2 Occupancy requirements with special administrative and engineering controls. (3) Move all operations that could not practically be made to conform to B-2 Occupancy requirements to alternate locations. In addition to the layered set of administrative and engineering controls set forth in this SAR, a semiquantitative risk analysis was performed on 30 various accident scenarios. Twelve presented only routine risks, while 18 presented low risks. Considering the demonstrated safe operating history of NREL in general and these systems specifically, the nature of the risks identified, and the layered set of administrative and engineering controls, it is clear that this facility falls within the DOE Low Hazard Class. Each operation can restart only after it has passed an Operational Readiness Review, comparing it to the requirements of this SAR, while subsequent safety inspections will ensure future compliance.

  20. Safety Analysis Report for the use of hazardous production materials in photovoltaic applications at the National Renewable Energy Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Crandall, R.S.; Nelson, B.P. (National Renewable Energy Lab., Golden, CO (United States)); Moskowitz, P.D.; Fthenakis, V.M. (Brookhaven National Lab., Upton, NY (United States))

    1992-07-01

    To ensure the continued safety of SERI's employees, the community, and the environment, NREL commissioned an internal audit of its photovoltaic operations that used hazardous production materials (HPMs). As a result of this audit, NREL management voluntarily suspended all operations using toxic and/or pyrophoric gases. This suspension affected seven laboratories and ten individual deposition systems. These activities are located in Building 16, which has a permitted occupancy of Group B, Division 2 (B-2). NREL management decided to do the following. (1) Exclude from this SAR all operations which conformed, or could easily be made to conform, to B-2 Occupancy requirements. (2) Include in this SAR all operations that could be made to conform to B-2 Occupancy requirements with special administrative and engineering controls. (3) Move all operations that could not practically be made to conform to B-2 Occupancy requirements to alternate locations. In addition to the layered set of administrative and engineering controls set forth in this SAR, a semiquantitative risk analysis was performed on 30 various accident scenarios. Twelve presented only routine risks, while 18 presented low risks. Considering the demonstrated safe operating history of NREL in general and these systems specifically, the nature of the risks identified, and the layered set of administrative and engineering controls, it is clear that this facility falls within the DOE Low Hazard Class. Each operation can restart only after it has passed an Operational Readiness Review, comparing it to the requirements of this SAR, while subsequent safety inspections will ensure future compliance.

  1. k0-INAA application at IPEN Neutron Activation Laboratory by using the k0-IAEA program: biological sample analysis

    International Nuclear Information System (INIS)

    The results obtained in the application of the k0-standardization method at LAN-IPEN for biological matrices analysis, by using the k0-IAEA software, provided by the International Atomic Energy Agency (IAEA), are presented. The flux parameters f and a of the IEA-R1 reactor were determined for the pneumatic irradiation facility and for one selected irradiation position, 24B/shelf2, for short and long irradiations, respectively. In order to obtain these parameters, the bare triple-monitor method with 197Au-96Zr-94Zr was used. In order to evaluate the accuracy and precision of the methodology, the biological reference materials Peach Leaves (NIST SRM 1547), Mixed Polish Herbs (INCT-MPH-2) e Tomato Leaves (NIST SRM 1573a) were analyzed. The statistical criteria Relative Errors (bias, %), Coefficient of Variation (CV) and U-score were applied to the obtained results (mean of six replicates). The relative errors (bias, %) in relation to certified values, were, for most elements, in the range of 0 e 30. The Coefficients of Variation were below 20%, showing a good reproducibility of the results. The U-score test showed that all results, except Na in Peach Leaves and in Tomato Leaves, were within 95% confidence interval. These results point out to a promising use of the k0-INAA method at LAN-IPEN for biological sample analysis. (author)

  2. Communication Systems Analysis Laboratory (CSAL)

    Data.gov (United States)

    Federal Laboratory Consortium — CSAL conducts electronic warfare investigations of radio frequency communication systems with respect to current and emerging electronic warfare threats. CSAL uses...

  3. k0-NAA implementation and application at IPEN neutron activation laboratory by using the k0-IAEA software: application to geological sample analysis

    International Nuclear Information System (INIS)

    The Neutron Activation Analysis Laboratory (LAN-IPEN) has been analysing geological samples such as rocks, soils and sediments, for many years with the INAA comparative method, for geochemical and environmental research. This study presents the results obtained in the implementation of the k0-standardization method at LAN - IPEN, for geological sample analysis, by using the program k0- IAEA, provided by the International Atomic Energy Agency (IAEA). The thermal to epithermal flux ratio f and the shape factor α of the epithermal flux distribution of the IPEN IEA-R1 nuclear reactor were determined for the pneumatic irradiation facility and one selected irradiation position, for short and long irradiations, respectively. To obtain these factors, the 'are triple-monitor' method with 197Au- 96Zr-94Zr was used. In order to validate the methodology, the geological reference materials basalts JB-1 (GSJ) and BE-N (IWG-GIT), andesite AGV-1 (USGS), granite GS-N (ANRT), SOIL-7 (IAEA) and sediment Buffalo River Sediment (NIST - BRS-8704), which represent different geological matrices, were analysed. The concentration results obtained agreed with assigned values, with bias less than 10% except for Zn in AGV-1 (11.4%) and Mg in GS-N (13.4%). Three different scores were used to evaluate the results: z-score, zeta-score and Uscore. The z-score showed that the results can be considered satisfactory (z3) for Mn in BE-N, Mg, Ce and La in GS-N, Mg in JB-1, and Th and Eu in Buffalo River Sediment. The U-score test showed that all results, except Mg in JB-1, were within 95% confidence interval. These results indicate excellent possibilities of using this parametric method at the LAN-IPEN for geological samples analysis in geochemical and environmental studies. (author)

  4. Engineering Water Analysis Laboratory Activity.

    Science.gov (United States)

    Schlenker, Richard M.

    The purposes of water treatment in a marine steam power plant are to prevent damage to boilers, steam-operated equipment, and steam and condensate lives, and to keep all equipment operating at the highest level of efficiency. This laboratory exercise is designed to provide students with experiences in making accurate boiler water tests and to…

  5. Laboratory micro-X-ray fluorescence spectroscopy instrumentation and applications

    CERN Document Server

    Haschke, Michael

    2014-01-01

    Micro-X-ray fluorescence offers the possibility for a position- sensitive and non-destructive analysis that can be used for the analysis of non-homogeneous materials and layer systems. This analytical technique has shown a dynamic development in the last 15 years and is used for the analysis of small particles, inclusions, of elemental distributions for a wide range of different applications both in research and quality control. The first experiments were performed on synchrotrons but there is a requirement for laboratory instruments which offers a fast and immediate access for analytical results. The book discuss the main components of a µ-XRF instrument and the different measurement modes, it gives an overview about the various instruments types, considers the special requirements for quantification of non-homogeneous materials and presents a wide range of application for single point and multi-point analysis as well as for distribution analysis in one, two and three dimensions.

  6. The identification of mixed pathology laboratory samples by DNA analysis

    OpenAIRE

    TUĞ, Ayşim; Cüneyt ELMA

    2006-01-01

    Formalin-fixed, and paraffin embedded biopsy samples can be useful sources for DNA analysis. In two cases, two tissue specimens taken from patients during total thyroidectomy operations were sent to pathology laboratory in accordance with the routine application. However, from pathology laboratory, results of the three samples belonging to the same patient were reported. Nodular goitre in two, and papillary carcinoma in one sample were diagnosed. Due to the difference of therapies to be appli...

  7. 以检验分析为基础的教学在医学检验专业本科生儿科临床见习的应用%The Application of Analysis of Laboratory Test in Pediatric Clinical Probation Teaching for Undergraduates of Laboratory Medicine

    Institute of Scientific and Technical Information of China (English)

    余慕雪; 李易娟; 蒋小云; 庄思齐; 李晓瑜; 岳智慧; 古玉芬

    2014-01-01

    This paper describes and investigates the application of analysis of laboratory test in pediatric clinical probation teaching for undergraduates of laboratory medicine in the Department of Pediatrics, First Affiliated Hospital of Sun Yat-sen. The analysis of laboratory test in pediatric clinical probation teaching for undergraduates of laboratory medicine was applied in nephrotic syndrome in children, pediatric anemia and neonatal jaundice teaching. The study discussed that the application of analysis of laboratory test in pediatric clinical probation teaching for undergraduates of laboratory medicine helped laboratory medicine students to strengthen the relation between laboratory medicine and pediatric clinic, to grasp the clinical features and diagnostic strategy of pediatric diseases, to apply laboratory medicine knowledge to clinic. Thus it helped to cultivate laboratory medical personnel of high quality.%中山大学附属第一医院儿科教研室在检验专业本科学生的儿科临床见习教学中,对小儿肾病综合征,小儿贫血、新生儿黄疸的临床见习采用以检验分析为基础的教学方法和调查。探讨了儿科临床见习中以检验分析为基础的教学使医学检验专业学生加强了与儿科临床的联系,有利于其对儿科疾病的临床特征和诊断思路的掌握以及医学检验知识的临床应用,培养了自学能力,有助于培养高素质的医学检验人才。

  8. Analysis of laboratory nucleosynthesis products

    CERN Document Server

    Adamenko, S V

    2003-01-01

    We present the results of the experimental study on synthesis of a wide range of isotopes in a superdense plasma. The initial conditions necessary for plasma bunch formation were provided by specially organized coherent impact on a solid target with a total energy up to 1 kJ. More than 4000 shots were performed with various targets made of light, medium, and heavy elements. Subsequent analysis of the products of the target explosion reveals the presence of a wide range of elements absent in the initial materials. Elements with nuclei three and more times heavier than the nucleus of the target main element are detected in the products. The isotopic composition of the produced elements significantly differs from the natural one. The presence of unknown superheavy elements at the border of the periodic table and beyond it was detected by several different spectroscopic methods of elemental and isotopic analyzes.

  9. Product Analysis Laboratory-Waste Management

    OpenAIRE

    Alkan, Pınar

    2015-01-01

    The wastes are one of the most difficult environmental problem to manage in our country and whole world. An inventory should be prepared for many kinds of waste as home, medical, industrial and dangerous wastes, and all the wastes should be managed at the source. Many kinds of wastes are also produced by the laboratory analysis and the service activities. Some of the main purposes of laboratory waste management are to prevent environmental waste damage, provide economical benefits to the firm...

  10. Atmospheric Laboratory for Applications and Science Payload

    Science.gov (United States)

    1994-01-01

    This is an STS-66 mission onboard photo of the Space Shuttle Orbiter Atlantis showing the payload of the third Atmospheric Laboratory for Applications and Science (ATLAS-3) mission. During the ATLAS missions, international teams of scientists representing many disciplines combined their expertise to seek answers to complex questions about the atmospheric and solar conditions that sustain life on Earth. The ATLAS program specifically investigated how Earth's middle and upper atmospheres and climate are affected by by the sun and by products of industrial and agricultural activities on Earth. Thirteen ATLAS instruments supported experiments in atmospheric sciences, solar physics, space plasma physics, and astronomy. The instruments were mounted on two Spacelab pallets in the Space Shuttle payload bay. The ATLAS-3 mission continued a variety of atmospheric and solar studies to improve understanding of the Earth's atmosphere and its energy input from the sun. A key scientific objective was to refine existing data on variations in the fragile ozone layer of the atmosphere. The Orbiter Atlantis was launched on November 3, 1994 for the ATLAS-3 mission (STS-66).

  11. Biomass Compositional Analysis Laboratory (Fact Sheet)

    Energy Technology Data Exchange (ETDEWEB)

    2014-07-01

    At the Biomass Compositional Analysis Laboratory, NREL scientists have more than 20 years of experience supporting the biomass conversion industry. They develop, refine, and validate analytical methods to determine the chemical composition of biomass samples before, during, and after conversion processing. These high-quality compositional analysis data are used to determine feedstock compositions as well as mass balances and product yields from conversion processes.

  12. 78 FR 73208 - Underwriters Laboratories, Inc.: Application for Expansion

    Science.gov (United States)

    2013-12-05

    ...), Secretary of Labor's Order No. 1-2012 (77 FR 3912, Jan. 25, 2012), and 29 CFR 1910.7. Signed at Washington... Occupational Safety and Health Administration Underwriters Laboratories, Inc.: Application for Expansion AGENCY... announces the application of Underwriters Laboratories, Inc., for expansion of its recognition as...

  13. Battery Test Facility- Electrochemical Analysis and Diagnostics Laboratory

    Data.gov (United States)

    Federal Laboratory Consortium — The Electrochemical Analysis and Diagnostics Laboratory (EADL) provides battery developers with reliable, independent, and unbiased performance evaluations of their...

  14. Application of robotic principles to laboratory automation

    International Nuclear Information System (INIS)

    The possibility of applying robotic techniques to some laboratory tasks is considered. A low-cost rig was constructed, at AERE Harwell, to examine the performance of a number of low-cost commercial robots. The importance of justifying the costs of introducing robotic systems and the difficulty of analysing the cost-benefit of robotic over mechanical systems is stressed. (UK)

  15. Laboratory EXAFS Spectrometer, Principles and Applications

    NARCIS (Netherlands)

    Koningsberger, D.C.; Kampers, F.W.H.; Duivenvoorden, F.B.M.; Zon, J.B.A.D. van; Brinkgreve, P.; Viegers, M.P.A.

    1985-01-01

    In order to be independent of poor availability of synchrotron beamtime a laboratory EXAFS spectrometer has been developed. The X-ray source is a rotating anode generator (max. voltage 60 kV, max. current 300 mA). Monochromatisation and focusing is done with a linear spectrometer, based upon the Row

  16. Sandia National Laboratories analysis code data base

    Energy Technology Data Exchange (ETDEWEB)

    Peterson, C.W.

    1994-11-01

    Sandia National Laboratories, mission is to solve important problems in the areas of national defense, energy security, environmental integrity, and industrial technology. The Laboratories` strategy for accomplishing this mission is to conduct research to provide an understanding of the important physical phenomena underlying any problem, and then to construct validated computational models of the phenomena which can be used as tools to solve the problem. In the course of implementing this strategy, Sandia`s technical staff has produced a wide variety of numerical problem-solving tools which they use regularly in the design, analysis, performance prediction, and optimization of Sandia components, systems and manufacturing processes. This report provides the relevant technical and accessibility data on the numerical codes used at Sandia, including information on the technical competency or capability area that each code addresses, code ``ownership`` and release status, and references describing the physical models and numerical implementation.

  17. Analysis of Designs of Space Laboratories

    Science.gov (United States)

    Cohen, Marc M.

    2003-01-01

    A report presents a review of the development of laboratories in outer space, starting from the pioneering Skylab and Salyut stations of the United States and the former Soviet Union and progressing through current and anticipated future developments. The report includes textual discussions of space station designs, illustrated with drawings, photographs, and tables. The approach taken in the review was not to provide a comprehensive catalog of each space laboratory and every design topic that applies to it, but, rather, to illustrate architectural precedents by providing examples that illustrate major design problems and principles to be applied in solving them. Hence, the report deemphasizes information from the most recent space-station literature and concentrates on information from original design reports that show how designs originated and evolved. The most important contribution of the review was the development of a methodology, called "units of analysis," for identifying and analyzing design issues from the perspectives of four broad domains: laboratory science, crew, modes of operations, and the system as a whole.

  18. Some Experiments with Biological Applications for the Elementary Laboratory

    Science.gov (United States)

    Kammer, D. W.; Williams, J. A.

    1975-01-01

    Summarizes physics laboratory experiments with applications in the biological sciences. Includes the following topics: mechanics of the human arm, fluid flow in tubes, physics of learning, the electrocardiograph, nerve impulse conduction, and corrective lenses for eye defects. (Author/MLH)

  19. Safety analysis report for the use of hazardous production materials in photovoltaic applications at the National Renewable Energy Laboratory. Volume 2, Appendices

    Energy Technology Data Exchange (ETDEWEB)

    Crandall, R.S.; Nelson, B.P.; Moskowitz, P.D.; Fthenakis, V.M.

    1992-07-01

    To ensure the continued safety of SERI`s employees, the community, and the environment, NREL commissioned an internal audit of its photovoltaic operations that used hazardous production materials (HPMS). As a result of this audit, NREL management voluntarily suspended all operations using toxic and/or pyrophoric gases. This suspension affected seven laboratories and ten individual deposition systems. These activities are located in Building 16, which has a permitted occupancy of Group B, Division 2 (B-2). NREL management decided to do the following. (1) Exclude from this SAR all operations which conformed, or could easily be made to conform, to B-2 Occupancy requirements. (2) Include in this SAR all operations that could be made to conform to B-2 Occupancy requirements with special administrative and engineering controls. (3) Move all operations that could not practically be made to conform to B-2 occupancy requirements to alternate locations. In addition to the layered set of administrative and engineering controls set forth in this SAR, a semiquantitative risk analysis was performed on 30 various accident scenarios. Twelve presented only routine risks, while 18 presented low risks. Considering the demonstrated safe operating history of NREL in general and these systems specifically, the nature of the risks identified, and the layered set of administrative and engineering controls, it is clear that this facility falls within the DOE Low Hazard Class. Each operation can restart only after it has passed an Operational Readiness Review, comparing it to the requirements of this SAR, while subsequent safety inspections will ensure future compliance. This document contains the appendices to the NREL safety analysis report.

  20. Reliability on Intra-Laboratory and Inter-Laboratory Data of Hair Mineral Analysis Comparing with Blood Analysis

    OpenAIRE

    Namkoong, Sun; Hong, Seung Phil; Kim, Myung Hwa; Park, Byung Cheol

    2013-01-01

    Background Nowadays, although its clinical value remains controversial institutions utilize hair mineral analysis. Arguments about the reliability of hair mineral analysis persist, and there have been evaluations of commercial laboratories performing hair mineral analysis. Objective The objective of this study was to assess the reliability of intra-laboratory and inter-laboratory data at three commercial laboratories conducting hair mineral analysis, compared to serum mineral analysis. Method...

  1. Idaho National Laboratory Quarterly Occurrence Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Mitchell, Lisbeth Ann [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2015-11-01

    This report is published quarterly by the Idaho National Laboratory (INL) Quality and Performance Management Organization. The Department of Energy (DOE) Occurrence Reporting and Processing System (ORPS), as prescribed in DOE Order 232.2, “Occurrence Reporting and Processing of Operations Information,” requires a quarterly analysis of events, both reportable and not reportable, for the previous 12 months. This report is the analysis of 85 reportable events (18 from the 4th Qtr FY-15 and 67 from the prior three reporting quarters), as well as 25 other issue reports (including events found to be not reportable and Significant Category A and B conditions) identified at INL during the past 12 months (8 from this quarter and 17 from the prior three quarters).

  2. Idaho National Laboratory Quarterly Performance Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Lisbeth Mitchell

    2014-11-01

    This report is published quarterly by the Idaho National Laboratory (INL) Quality and Performance Management Organization. The Department of Energy (DOE) Occurrence Reporting and Processing System (ORPS), as prescribed in DOE Order 232.2, “Occurrence Reporting and Processing of Operations Information,” requires a quarterly analysis of events, both reportable and not reportable, for the previous 12 months. This report is the analysis of 60 reportable events (23 from the 4th Qtr FY14 and 37 from the prior three reporting quarters) as well as 58 other issue reports (including not reportable events and Significant Category A and B conditions) identified at INL from July 2013 through October 2014. Battelle Energy Alliance (BEA) operates the INL under contract DE AC07 051D14517.

  3. Identification of Gas Components in Lighter by Gas Chromatography: An Experiment for the Undergraduate Instrumental Analysis Laboratory Which Can Be Used With Distance Learning Applications

    Directory of Open Access Journals (Sweden)

    Inci MORGIL

    2006-10-01

    Full Text Available In the applications of instrumental analysis lessons, advanced instruments with the needed experiments are needed. During the lessons it is a fact that the more experiments are performed, the more learning will be. For this reason, experiments that do not last long and should be performed with more simple instruments and that increase students’ attention with current events should be developed. It is thought that there is only propane gas in lighters used in daily life. However, in fact, in certain ratios, there are also other gases having similar structure besides propane gas. For these reasons, the identification of gas components in lighter has been thought. To enlighten this situation a simple experiment design has been planned.

  4. Web-based applications for virtual laboratories

    NARCIS (Netherlands)

    Bier, H.H.

    2011-01-01

    Web-based applications for academic education facilitate, usually, exchange of multimedia files, while design-oriented domains such as architectural and urban design require additional support in collaborative real-time drafting and modeling. In this context, multi-user interactive interfaces employ

  5. Dicentric assay: Inter-laboratory comparison in Indian laboratories for routine and triage applications

    International Nuclear Information System (INIS)

    An Inter-Laboratory Comparison (ILC) study on Dicentric Chromosome Assay (DCA) was carried out between two Indian biodosimetry labs. Human peripheral blood samples exposed to 10 different doses of X-rays up to 5 Gy were shared between the labs to generate calibration data. Validation of calibration curves was done by dose estimation of coded samples exposed to X- or gamma radiation. Reliability of the DCA data for triage application was evaluated by scoring 20, 50 and 100 metaphases in the dose range of 0.5–3.0 Gy. No significant difference was observed between labs regarding the established calibration data as well as the DCA triage dose assessments. Scoring of 20 metaphases (MP) was adequate to detect radiation exposure of >2 Gy whereas 50 MP were sufficient to determine exposures of 0.5 Gy. Both labs performed the DCA in a reliable manner and made the first step in setting up a biodosimetry network in India. - Highlights: • This is the first Inter-Laboratory Comparison (ILC) study from India on Dicentric Chromosomal Assay (DCA) for both routine and triage biodosimetry applications. • No significant difference in the in vitro dose response curve parameters (slope, intercept and curvature) between labs. • Validation of calibration curves was done by blind trial method using samples exposed to different doses of X-rays and gamma rays. • Triage analysis was done by scoring 20, 50 and 100 metaphases for dose determination. • Scoring 20 metaphases is adequate to detect radiation exposure of 2 Gy and 50 metaphases is sufficient to determine radiation exposures of as low as 0.5 Gy. • The feasibility of formation of biodosimetry network in India which is essential especially when the country is aiming at capacity building in nuclear energy is demonstrated

  6. NASA Laboratory Analysis for Manned Exploration Missions

    Science.gov (United States)

    Krihak, Michael K.; Shaw, Tianna E.

    2014-01-01

    The Exploration Laboratory Analysis (ELA) project supports the Exploration Medical Capability Element under the NASA Human Research Program. ELA instrumentation is identified as an essential capability for future exploration missions to diagnose and treat evidence-based medical conditions. However, mission architecture limits the medical equipment, consumables, and procedures that will be available to treat medical conditions during human exploration missions. Allocated resources such as mass, power, volume, and crew time must be used efficiently to optimize the delivery of in-flight medical care. Although commercial instruments can provide the blood and urine based measurements required for exploration missions, these commercial-off-the-shelf devices are prohibitive for deployment in the space environment. The objective of the ELA project is to close the technology gap of current minimally invasive laboratory capabilities and analytical measurements in a manner that the mission architecture constraints impose on exploration missions. Besides micro gravity and radiation tolerances, other principal issues that generally fail to meet NASA requirements include excessive mass, volume, power and consumables, and nominal reagent shelf-life. Though manned exploration missions will not occur for nearly a decade, NASA has already taken strides towards meeting the development of ELA medical diagnostics by developing mission requirements and concepts of operations that are coupled with strategic investments and partnerships towards meeting these challenges. This paper focuses on the remote environment, its challenges, biomedical diagnostics requirements and candidate technologies that may lead to successful blood-urine chemistry and biomolecular measurements in future space exploration missions.

  7. Application of modern online instrumentation for chemical analysis of gas and particulate phases of exhaust at the European Commission heavy-duty vehicle emission laboratory.

    Science.gov (United States)

    Adam, T W; Chirico, R; Clairotte, M; Elsasser, M; Manfredi, U; Martini, G; Sklorz, M; Streibel, T; Heringa, M F; Decarlo, P F; Baltensperger, U; De Santi, G; Krasenbrink, A; Zimmermann, R; Prevot, A S H; Astorga, C

    2011-01-01

    The European Commission recently established a novel test facility for heavy-duty vehicles to enhance more sustainable transport. The facility enables the study of energy efficiency of various fuels/scenarios as well as the chemical composition of evolved exhaust emissions. Sophisticated instrumentation for real-time analysis of the gas and particulate phases of exhaust has been implemented. Thereby, gas-phase characterization was carried out by a Fourier transform infrared spectrometer (FT-IR; carbonyls, nitrogen-containing species, small hydrocarbons) and a resonance-enhanced multiphoton ionization time-of-flight mass spectrometer (REMPI-TOFMS; monocyclic and polycyclic aromatic hydrocarbons). For analysis of the particulate phase, a high-resolution time-of-flight aerosol mass spectrometer (HR-TOF-AMS; organic matter, chloride, nitrate), a condensation particle counter (CPC; particle number), and a multiangle absorption photometer (MAAP; black carbon) were applied. In this paper, the first application of the new facility in combination with the described instruments is presented, whereby a medium-size truck was investigated by applying different driving cycles. The goal was simultaneous chemical characterization of a great variety of gaseous compounds and particulate matter in exhaust on a real-time basis. The time-resolved data allowed new approaches to view the results; for example, emission factors were normalized to time-resolved consumption of fuel and were related to emission factors evolved during high speeds. Compounds could be identified that followed the fuel consumption, others showed very different behavior. In particular, engine cold start, engine ignition (unburned fuel), and high-speed events resulted in unique emission patterns.

  8. Magnetic resonance imaging in laboratory petrophysical core analysis

    Science.gov (United States)

    Mitchell, J.; Chandrasekera, T. C.; Holland, D. J.; Gladden, L. F.; Fordham, E. J.

    2013-05-01

    Magnetic resonance imaging (MRI) is a well-known technique in medical diagnosis and materials science. In the more specialized arena of laboratory-scale petrophysical rock core analysis, the role of MRI has undergone a substantial change in focus over the last three decades. Initially, alongside the continual drive to exploit higher magnetic field strengths in MRI applications for medicine and chemistry, the same trend was followed in core analysis. However, the spatial resolution achievable in heterogeneous porous media is inherently limited due to the magnetic susceptibility contrast between solid and fluid. As a result, imaging resolution at the length-scale of typical pore diameters is not practical and so MRI of core-plugs has often been viewed as an inappropriate use of expensive magnetic resonance facilities. Recently, there has been a paradigm shift in the use of MRI in laboratory-scale core analysis. The focus is now on acquiring data in the laboratory that are directly comparable to data obtained from magnetic resonance well-logging tools (i.e., a common physics of measurement). To maintain consistency with well-logging instrumentation, it is desirable to measure distributions of transverse (T2) relaxation time-the industry-standard metric in well-logging-at the laboratory-scale. These T2 distributions can be spatially resolved over the length of a core-plug. The use of low-field magnets in the laboratory environment is optimal for core analysis not only because the magnetic field strength is closer to that of well-logging tools, but also because the magnetic susceptibility contrast is minimized, allowing the acquisition of quantitative image voxel (or pixel) intensities that are directly scalable to liquid volume. Beyond simple determination of macroscopic rock heterogeneity, it is possible to utilize the spatial resolution for monitoring forced displacement of oil by water or chemical agents, determining capillary pressure curves, and estimating

  9. Cluster analysis for applications

    CERN Document Server

    Anderberg, Michael R

    1973-01-01

    Cluster Analysis for Applications deals with methods and various applications of cluster analysis. Topics covered range from variables and scales to measures of association among variables and among data units. Conceptual problems in cluster analysis are discussed, along with hierarchical and non-hierarchical clustering methods. The necessary elements of data analysis, statistics, cluster analysis, and computer implementation are integrated vertically to cover the complete path from raw data to a finished analysis.Comprised of 10 chapters, this book begins with an introduction to the subject o

  10. Tritium Research Laboratory safety analysis report

    Energy Technology Data Exchange (ETDEWEB)

    Wright, D.A.

    1979-03-01

    Design and operational philosophy has been evolved to keep radiation exposures to personnel and radiation releases to the environment as low as reasonably achievable. Each experiment will be doubly contained in a glove box and will be limited to 10 grams of tritium gas. Specially designed solid-hydride storage beds may be used to store temporarily up to 25 grams of tritium in the form of tritides. To evaluate possible risks to the public or the environment, a review of the Sandia Laboratories Livermore (SLL) site was carried out. Considered were location, population, land use, meteorology, hydrology, geology, and seismology. The risks and the extent of damage to the TRL and vital systems were evaluated for flooding, lightning, severe winds, earthquakes, explosions, and fires. All of the natural phenomena and human error accidents were considered credible, although the extent of potential damage varied. However, rather than address the myriad of specific individual consequences of each accident scenario, a worst-case tritium release caused indirectly by an unspecified natural phenomenon or human error was evaluated. The maximum credible radiological accident is postulated to result from the release of the maximum quantity of gas from one experiment. Thus 10 grams of tritium gas was used in the analysis to conservatively estimate the maximum whole-body dose of 1 rem at the site boundary and a maximum population dose of 600 man-rem. Accidental release of this amount of tritium implies simultaneous failure of two doubly contained systems, an occurrence considered not credible. Nuclear criticality is impossible in this facility. Based upon the analyses performed for this report, we conclude that the Tritium Research Laboratory can be operated without undue risk to employees, the general public, or the environment. (ERB)

  11. Hanford Facility Dangerous Waste Permit Application, 222-S Laboratory Complex

    International Nuclear Information System (INIS)

    The Hanford Facility Dangerous Waste Permit Application is considered to be a single application organized into a General Information Portion (document number DOE/RL-91-28) and a Unit-Specific Portion. The scope of the Unit-Specific Portion is limited to Part B permit application documentation submitted for individual, operating treatment, storage, and/or disposal units, such as the 222-S Laboratory Complex (this document, DOE/RL-91-27). Both the General Information and Unit-Specific portions of the Hanford Facility Dangerous Waste Permit Application address the content of the Part B permit application guidance prepared by the Washington State Department of Ecology (Ecology 1987 and 1996) and the U.S. Environmental Protection Agency (40 Code of Federal Regulations 270), with additional information needs defined by the Hazardous and Solid Waste Amendments and revisions of Washington Administrative Code 173-303. For ease of reference, the Washington State Department of Ecology alpha-numeric section identifiers from the permit application guidance documentation (Ecology 1996) follow, in brackets, the chapter headings and subheadings. Documentation contained in the General Information Portion is broader in nature and could be used by multiple treatment, storage, and/or disposal units (e.g., the glossary provided in the General Information Portion). Wherever appropriate, the 222-S Laboratory Complex permit application documentation makes cross-reference to the General Information Portion, rather than duplicating text. Information provided in this 222-S Laboratory Complex permit application documentation is current as of August 2000

  12. Application of the Monte Carlo method to the analysis of measurement geometries for the calibration of a HP Ge detector in an environmental radioactivity laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Rodenas, Jose [Departamento de Ingenieria Quimica y Nuclear, Universidad Politecnica de Valencia, Apartado 22012, E-46071 Valencia (Spain)], E-mail: jrodenas@iqn.upv.es; Gallardo, Sergio; Ballester, Silvia; Primault, Virginie [Departamento de Ingenieria Quimica y Nuclear, Universidad Politecnica de Valencia, Apartado 22012, E-46071 Valencia (Spain); Ortiz, Josefina [Laboratorio de Radiactividad Ambiental, Universidad Politecnica de Valencia, Apartado 22012, E-46071 Valencia (Spain)

    2007-10-15

    A gamma spectrometer including an HP Ge detector is commonly used for environmental radioactivity measurements. The efficiency of the detector should be calibrated for each geometry considered. Simulation of the calibration procedure with a validated computer program is an important auxiliary tool for environmental radioactivity laboratories. The MCNP code based on the Monte Carlo method has been applied to simulate the detection process in order to obtain spectrum peaks and determine the efficiency curve for each modelled geometry. The source used for measurements was a calibration mixed radionuclide gamma reference solution, covering a wide energy range (50-2000 keV). Two measurement geometries - Marinelli beaker and Petri boxes - as well as different materials - water, charcoal, sand - containing the source have been considered. Results obtained from the Monte Carlo model have been compared with experimental measurements in the laboratory in order to validate the model.

  13. Numerical modelling of channel migration with application to laboratory rivers

    Institute of Scientific and Technical Information of China (English)

    Jian SUN; Bin-liang LIN; Hong-wei KUANG

    2015-01-01

    The paper presents the development of a morphological model and its application to experimental model rivers. The model takes into account the key processes of channel migration, including bed deformation, bank failure and wetting and drying. Secondary flows in bends play an important role in lateral sediment transport, which further affects channel migration. A new formula has been derived to predict the near-bed secondary flow speed, in which the magnitude of the speed is linked to the lateral water level gradient. Since only non-cohesive sediment is considered in the current study, the bank failure is modelled based on the concept of submerged angle of repose. The wetting and drying process is modelled using an existing method. Comparisons between the numerical model predictions and experimental observations for various discharges have been made. It is found that the model predicted channel planform and cross-sectional shapes agree generally well with the laboratory observations. A scenario analysis is also carried out to investigate the impact of secondary flow on the channel migration process. It shows that if the effect of secondary flow is ignored, the channel size in the lateral direction will be seriously underestimated.

  14. Practical aspects of operating a neutron activation analysis laboratory

    International Nuclear Information System (INIS)

    This book is intended to advise in everyday practical problems related to operating a neutron activation analysis (NAA) laboratory. It gives answers to questions like ''what to use NAA for'', ''how to find relevant research problems'', ''how to find users for the technique'', ''how to estimate the cost of the analysis and how to finance the work'', ''how to organize the work in a rational way'' and ''how to perform the quality control''. It gives advice in choosing staff, equipment, and consumables and how to design facilities and procedures according to need and available resources. Potential applications of economic or environmental importance, reactor facilities, counting and measuring equipment of the lab, cooperation with other analytical groups and competitiveness of NAA are discussed by experienced analysts. The compiled 8 tables of data useful for neutron activation analysts are a valuable asset for research labs as well as industrial quality control units. Refs, figs and tabs

  15. LABORATORY GUIDELINES FOR ANALYSIS OF BIOTERRORISM SAMPLES

    Science.gov (United States)

    With advent of deaths associated with Bacillus anthracis spore contaminated mail, a worldwide need was apparent for increased laboratory capacity to safely analyze bioterrorism samples. The U.S. Department of Health and Human Services has furnished guidelines for microbiological...

  16. Clinical application driven physiology in biomedical engineering laboratory course education.

    Science.gov (United States)

    Schmidt, Robert

    2005-01-01

    An innovative biomedical engineering (BME) laboratory course was developed to integrate wireless biotechnology with a hands on learning approach. In recent years the need for biomedical engineers in research and industry has increased dramatically. This requires novel strategies for training BME students in both engineering principles and clinical applications. BME students should be prepared with an appropriate skill set for real-world problems. BME education requires hands on learning with cutting edge technology to produce students ready to solve clinical problems in both research and industry. Including a wide range of BME clinical and rehabilitation applications increases student interest. A wide range of BME laboratories was designed to encompass both the basics of physiological signals and how to effectively utilize them in clinical applications. These clinical application interfaces are critical for students to understand how physiological signals may be manipulated to extract meaningful benefits for various medical disorders and rehabilitation needs. The biomedical engineering laboratory course presented in this paper was implemented and evaluated at several universities. Utilizing a virtual environment for practical applications bridges the gap between fundamentals and real world designs. PMID:17282190

  17. Bridging biomedical basics with practical applications in BME laboratory education.

    Science.gov (United States)

    Giuffrida, J P

    2004-01-01

    A sophisticated biomedical engineering (BME) laboratory course was designed to integrate state-of-the-art technology with a hands on learning approach in a flexible, virtual-based, clinical application setting. The need for biomedical engineers in research and industry has increased rapidly in recent years. This requires that innovative methods for training BME students evolve to meet that need. BME students should be prepared with a skill set for approaching practical problems. BME education requires hands on learning with cutting edge technology to produce students ready to solve clinical problems in research and industry. Exposing students to a wide range of BME applications not only increases interest, but also better prepares them to solve real world problems. A wide range of BME laboratories have been designed to encompass both the basics of physiological signals and how to effectively utilize them in practical applications. These application interfaces are critical for students to understand how physiological signals may be manipulated to produce meaningful benefits for various medical disorders and rehabilitation needs. The laboratory course presented in this paper was implemented and evaluated at several universities. Utilizing the virtual environment for practical applications bridges the gap between fundamentals and real world designs. PMID:17271499

  18. Application of image texture analysis for online determination of curd moisture and whey solids in a laboratory-scale stirred cheese vat.

    Science.gov (United States)

    Fagan, C C; Du, C J; O'Donnell, C P; Castillo, M; Everard, C D; O'Callaghan, D J; Payne, F A

    2008-08-01

    A noninvasive technology, which could be employed online to monitor syneresis, would facilitate the production of higher quality and more consistent cheese products. Computer vision techniques such as image texture analysis have been successfully established as rapid, consistent, and nondestructive tools for determining the quality of food products. In this study, the potential of image texture analysis to monitor syneresis of cheese curd in a stirred vat was studied. A fully randomized 2-factor (milk pH and stirring speed), 2-level factorial design was carried out in triplicate. During syneresis, images of the surface of the stirred curd-whey mixture were captured using a computer vision system. The images were subjected to 5 image texture analysis methods by which 109 image texture features were extracted. Significant correlations were observed between a number of image texture features and curd moisture and whey solids. Multiscale analysis techniques of fractal dimension and wavelet transform were demonstrated to be the most useful for predicting syneresis indices. Fractal dimension features predicted curd moisture and whey solids during syneresis with standard errors of prediction of 1.03% (w/w) and 0.58 g/kg, respectively. It was concluded that syneresis indices were most closely related to the image texture features of multiscale representation. The results of this study indicate that image texture analysis has potential for monitoring syneresis.

  19. VALIDATION GUIDELINES FOR LABORATORIES PERFORMING FORENSIC ANALYSIS OF CHEMICAL TERRORISM

    Science.gov (United States)

    The Scientific Working Group on Forensic Analysis of Chemical Terrorism (SWGFACT) has developed the following guidelines for laboratories engaged in the forensic analysis of chemical evidence associated with terrorism. This document provides a baseline framework and guidance for...

  20. Kinetic Analysis of Metal Ions: An Undergraduate Laboratory Experiment.

    Science.gov (United States)

    Williams, Kathryn R.

    1985-01-01

    Reports on the adaptation of a kinetic method of analysis of metal ions for use in an undergraduate teaching laboratory. Background information, procedures used, and analysis of typical results obtained are provided. (JN)

  1. 实验室常用指标在肾病中的应用分析%Analysis of application of common laboratory indexes in kidney diseases

    Institute of Scientific and Technical Information of China (English)

    蒋新华; 马萍; 王丽; 权翠侠; 王庆国

    2014-01-01

    目的:探讨实验室检测在肾病中的应用价值,评估这些标记是否可以预测肾组织学病变,筛选出适合临床的最佳检验组合。方法收集该院2010年12月至2014年3月117例肾活检患者主要的临床资料、病理类型及实验室检查等指标,根据WHO 肾脏病理分级标准和 Katafuchi 半定量积分标准进行分级(Ⅰ、Ⅱ、Ⅲ、Ⅳ级)分组。比较分析各组血清胱抑素 C(CysC)、尿N-乙酰-β-D-氨基葡萄糖苷酶(NAG),尿α1微球蛋白(α1-MG)、尿微量清蛋白(mAlb)和24尿蛋白(U-TP)水平的差异性与肾小球、肾小管间质病理变化的关系;以及各项检测指标在不同分组中的相关性和统计学意义。结果病理分级第Ⅳ级的 NAG、α1-MG 和 CysC 与第Ⅰ、Ⅱ、Ⅲ级比较均有统计学意义(P <0.05),U-TP 和 mAlb 在反映肾脏疾疾时具有显著相关性(r=0.565,P =0.000);NAG 和α1-MG 在反映肾小管间质疾病时也具有显著相关性(r =0.509,P =0.000)。结论各项检测指标的检测结果上升到一定高度时可以判断患者临床与病理病情进展,说明病情的严重情况;同时根据指标间的相关性和检测效能,筛选 Cys C、mAlb、α1-MG 3个指标联合检测,检测效能大大改进。%Objective To investigate the value of laboratory testing in kidney diseases and to assess whether these marks can predict the renal histological lesions for screening the best clinical test combination.Methods The main clinical data,pathological types and laboratory examination indexes in 117 patients with renal biopsy in our hospital from December 2010 to March 2014 were collected and graded according to the WHO renal pathological classification standard and the Katafuchi semi-quantitative score standard classification (Ⅰ,Ⅱ,Ⅲ,Ⅳ).The differences in serum CysC,urine NAG,urine alpha 1-MG,urine mAlb and 24 h urine total protein (24h-UTP)level were

  2. Astronomy applications of adaptive optics at Lawrence Livermore National Laboratory

    Science.gov (United States)

    Bauman, Brian J.; Gavel, Donald T.

    2003-06-01

    Astronomical applications of adaptive optics at Lawrence Livermore National Laboratory (LLNL) has a history that extends from 1984. The program started with the Lick Observatory Adaptive Optics system and has progressed through the years to lever-larger telescopes: Keck, and now the proposed CELT (California Extremely Large Telescope) 30m telescope. LLNL AO continues to be at the forefront of AO development and science.

  3. Astronomy Applications of Adaptive Optics at Lawrence Livermore National Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Bauman, B J; Gavel, D T

    2003-04-23

    Astronomical applications of adaptive optics at Lawrence Livermore National Laboratory (LLNL) has a history that extends from 1984. The program started with the Lick Observatory Adaptive Optics system and has progressed through the years to lever-larger telescopes: Keck, and now the proposed CELT (California Extremely Large Telescope) 30m telescope. LLNL AO continues to be at the forefront of AO development and science.

  4. Analysis of 26 amino acids in human plasma by HPLC using AQC as derivatizing agent and its application in metabolic laboratory.

    Science.gov (United States)

    Sharma, Gaurav; Attri, Savita Verma; Behra, Bijaylaxmi; Bhisikar, Swapnil; Kumar, Praveen; Tageja, Minni; Sharda, Sheetal; Singhi, Pratibha; Singhi, Sunit

    2014-05-01

    The present study reports the simultaneous analysis of 26 physiological amino acids in plasma along with total cysteine and homocysteine by high-performance liquid chromatography (HPLC) employing 6-aminoquinolyl-N-hydroxysuccinimidyl carbamate (AQC) as precolumn derivatizing reagent. Separations were carried out using Lichrospher 100 RP-18e (5 μm) 250 × 4.0 mm column connected to 100 CN 4.0 × 4.0 mm guard column on a quaternary HPLC system and run time was 53 min. Linearity of the peak areas for different concentrations ranging from 2.5 to 100 pmol/μL of individual amino acids was determined. A good linearity (R (2) > 0.998) was achieved in the standard mixture for each amino acid. Recovery of amino acids incorporated at the time of derivatization ranged from 95 to 106 %. Using this method we have established the normative data of amino acids in plasma, the profile being comparable to the range reported in literature and identified cases of classical homocystinuria, cobalamin defect/deficiency, non-ketotic hyperglycinemia, hyperprolinemia, ketotic hyperglycinemia, urea cycle defect and maple syrup urine disease.

  5. Application of RAM to Facility/Laboratory Design

    Energy Technology Data Exchange (ETDEWEB)

    Mohammadi, K

    2008-04-14

    Reliability, Availability, and Maintainability (RAM) studies are extensively used for mission critical systems (e.g., weapons systems) to predict the RAM parameters at the preliminary design phase. A RAM methodology is presented for predicting facility/laboratory inherent availability (i.e., availability that only considers the steady-state effects of design) at the preliminary design phase in support of Department of Energy (DOE) Order 430.1A (Life Cycle Asset Management) and DOE Order 420.1B (Facility Safety). The methodology presented identifies the appropriate system-level reliability and maintainability metrics and discusses how these metrics are used in a fault tree analysis for predicting the facility/laboratory inherent availability. The inherent availability predicted is compared against design criteria to determine if changes to the facility/laboratory preliminary design are necessary to meet the required availability objective in the final design.

  6. An Analysis on the Application of Informatization in Multimedia Language Laboratory%步入信息化的多媒体语言实验室的应用

    Institute of Scientific and Technical Information of China (English)

    陈琦; 陈辛欣

    2012-01-01

    在多媒体技术飞速发展的今天,外语教学利用多媒体语言实验室逐渐步入信息化、现代化及规范化。特别是在多媒体语言实验室的教学应用中,信息化给现代教学带来诸多好处,优势明显。英语教学的发展推动了多媒体语言实验室的改进,多媒体语言室的改进又为英语教学的改革提供了优良教学环境。%With the rapid development of multimedia technology,the application of multimedia language laboratory in foreign language teaching is moving gradually towards informationization,modernization and standardization.Especially in multimedia language laboratory teaching applications,informatization has brought many benefits to modern teaching.This article studies the application and practice of multimedia language laboratory in foreign language teaching.Meanwhile,combined with the author's of management experiences and on the basis of the advantages of multimedia language laboratory teaching,it analyzes the informatization of multimedia language laboratory teaching through investigation and research.

  7. Incompatibilities analysis in the accredited laboratory

    Directory of Open Access Journals (Sweden)

    D. Szewieczek

    2008-06-01

    Full Text Available Purpose of the presented paper aimed at motivating the necessity of the accreditation of research and standardising laboratories as factors deciding about the competitive advantage of those organisations on the European Union market.Design/methodology/approach used for the research has covered the analyses of results of internal and external audits conducted in one of Polish accredited laboratories and estimation of the incompatibilities occurred.Findings of the carried out research are as follows: number and character of incompatibilities, which are exposed during internal and external audits, reflect size of organisation, where the management system is implemented, phase of implementation as well as the time of functioning.Practical implications refers to any organisation which has quality management system implemented as well as to any accredited laboratory using internal audits as an element of continuous improvement and treating incompatibilities not as something disqualifying the investigated area, but as an supporting element. Originality/value of the presented paper belongs to the methodology comprising the usage of internal audits’ results - proved incompatibilities - as a tool for obtaining and assuring the confidence in the management system.

  8. Oak Ridge National Laboratory site data for safety-analysis report

    Energy Technology Data Exchange (ETDEWEB)

    Fitzpatrick, F.C.

    1982-12-01

    The Oak Ridge National Laboratory site data contained herein were compiled in support of the United States Department of Energy (USDOE) Oak Ridge Operations Office Order OR 5481.1. That order sets forth assignment of responsibilities for safety analysis and review responsibilities and provides guidance relative to the content and format of safety analysis reports. The information presented in this document is intended for use by reference in individual safety analysis reports where applicable to support accident analyses or the establishment of design bases of significance to safety, and it is applicable only to Oak Ridge National Laboratory facilities in Bethel and Melton Valleys. This information includes broad descriptions of the site characteristics, radioactive waste handling and monitoring practices, and the organization and operating policies at Oak Ridge National Laboratory. The historical background of the Laboratory is discussed briefly and the overall physical situation of the facilities is described in the following paragraphs.

  9. Oak Ridge National Laboratory site data for safety-analysis report

    International Nuclear Information System (INIS)

    The Oak Ridge National Laboratory site data contained herein were compiled in support of the United States Department of Energy (USDOE) Oak Ridge Operations Office Order OR 5481.1. That order sets forth assignment of responsibilities for safety analysis and review responsibilities and provides guidance relative to the content and format of safety analysis reports. The information presented in this document is intended for use by reference in individual safety analysis reports where applicable to support accident analyses or the establishment of design bases of significance to safety, and it is applicable only to Oak Ridge National Laboratory facilities in Bethel and Melton Valleys. This information includes broad descriptions of the site characteristics, radioactive waste handling and monitoring practices, and the organization and operating policies at Oak Ridge National Laboratory. The historical background of the Laboratory is discussed briefly and the overall physical situation of the facilities is described in the following paragraphs

  10. Application of portable optical laboratory in high schools and colleges

    Science.gov (United States)

    Altshuler, Gregory B.; Belashenkov, Nickolai R.; Ermolaev, Vladimir S.; Inochkin, Mickle V.; Karasev, Vyatcheslav B.

    1995-10-01

    The present paper describes the experience of application of portable optical laboratory in optical practicum developed directly for training and demonstrations of basic optical laws and phenomena in high-schools, colleges and nontechnical universities all over Russia. The laboratory includes the portable optical platform with built-in laser and lamp sources, kit of optical components and software. These accessories provide the attractive and smart teaching in general optics during lectures, lessons and practice at schools and colleges. The portable optical laboratory provides 28 basic lab works and demonstrations in reflection, refraction, absorption and dispersion of light, interference, diffraction, polarization of light, image formation and waveguide propagation of light in optical fibers. Due to their interdependence one can teach and learn a whole course of general optics. The individual work of students and school children with optical kit stimulates and develops their creative abilities and experimental skills, as well increases the effectiveness of education. The kit is provided with optional elements for a number of extra experiments with holography, polarizing light propagation, simple optical devices etc. These extensions allow to modify the education process according to teacher's point of view. The conception of optical class-room based on portable optical laboratories is discussed. The effectiveness of individual and small-group training is analyzed.

  11. New Developments at NASA's Instrument Synthesis and Analysis Laboratory

    Science.gov (United States)

    Wood, H. John; Herring, Ellen L.; Brown, Tammy L.

    2006-01-01

    NASA's Instrument Synthesis and Analysis Laboratory (ISAL) has developed new methods to provide an instrument study in one week's engineering time. The final product is recorded in oral presentations, models and the analyses which underlie the models.

  12. Neutronics analysis of the Laboratory Microfusion Facility

    International Nuclear Information System (INIS)

    The radiological safety hazards of the experimental area (EA) for the proposed Inertial Confinement Fusion (ICF) Laboratory Microfusion Facility (LMF) have been examined. The EA includes those structures required to establish the proper pre-shot environment, point the beams, contain the pellet yield, and measure many different facets of the experiments. The radiation dose rates from neutron activation of representative target chamber materials, the laser beam tubes and the argon gas they contain, the air surrounding the chamber, and the concrete walls of the experimental area are given. Combining these results with the allowable dose rates for workers, we show how radiological considerations affect access to the inside of the target chamber and to the diagnostic platform area located outside the chamber. Waste disposal and tritium containment issues are summarized. Other neutronics issues, such as radiation damage to the final optics and neutron heating of materials placed close to the target, are also addressed. 16 refs., 2 figs., 1 tab

  13. Neutronics analysis of the laboratory microfusion facility

    International Nuclear Information System (INIS)

    The radiological safety hazards of the experimental area (EA) for the proposed Inertial Confinement Fusion (ICF) Laboratory Microfusion Facility (LMF) have been examined. The EA includes those structures required to establish the proper pre-shot environment, point the beams, contain the pellet yield, and measure many different facets of the experiments. The radiation dose rates from neutron activation of representative target chamber materials, the laser beam tubes and the argon gas they contain, the air surrounding the chamber, and the concrete walls of the experimental area are given. Combining these results with the allowable dose rates for workers, the authors show how radiological considerations affect access to the inside of the target chamber and to the diagnostic platform area located outside the chamber. Waste disposal and tritium containment issues are summarized. Other neutronics issues, such as radiation damage to the final optics and neutron heating of materials placed close to the target, are also addressed

  14. Robotic applications at the Idaho National Engineering Laboratory

    International Nuclear Information System (INIS)

    The Idaho National Engineering Laboratory (INEL) has several programs and projected programs that involve work in hazardous environments. Robotics/remote handling technology is being considered for an active role in these programs. The most appealing aspect of using robotics is in the area of personnel safety. Any task requiring an individual to enter a hazardous or potentially hazardous environment can benefit substantially from robotics by removing the operator from the environment and having him conduct the work remotely. Several INEL programs were evaluated based on their applications for robotics and the results and some conclusions are discussed in this paper. 1 fig

  15. Quality assurance for animal feed analysis laboratories

    NARCIS (Netherlands)

    Balthrop, J.; Brand, B.; Cowie, R.A.; Danier, J.; Boever, de J.L.; Jonge, de L.H.; Jackson, F.; Makkar, H.P.S.; Piotrowski, C.

    2011-01-01

    Every sector of the livestock industry, the associated services and the wellbeing of both animals and humans are influenced by animal feeding. The availability of accurate, reliable and reproducible analytical data is imperative for proper feed formulation. Only reliable analysis can lead to the gen

  16. Semen analysis standardization: is there any problem in Polish laboratories?

    Science.gov (United States)

    Walczak-Jedrzejowska, Renata; Marchlewska, Katarzyna; Oszukowska, Elzbieta; Filipiak, Eliza; Bergier, Leszek; Slowikowska-Hilczer, Jolanta

    2013-09-01

    The aim of the study was to determine the degree of compliance of Polish laboratories with World Health Organization (WHO) recommendations, with regard to semen analysis methodology. A survey requesting information about methods of semen analysis was distributed to employees of 55 laboratories. Respondents who had participated in external seminological workshops (31%) were termed certified respondents (CR), the remaining (69%)-non-certified respondents (NCR). Only one laboratory (6%) in the CR group and none in the NCR were compliant with WHO guidelines for methods and equipment used to evaluate seminal volume, sperm motility, concentration, vitality and morphology. Most problems were of volume measurement (weighing method was reported by 17% of CR and 10% of NCR) and staining method for sperm morphology (Papanicolau or Diff-Quik were found in 33% of CR and 23% of NCR). A three- or four-point grading of sperm motility was used by the majority of respondents; however, 17% of CR and 37% of NCR did not use a laboratory counter to tally spermatozoa. Although a haemocytometer method was used by 80% of laboratories in each group, the improved Neubauer chamber was used only by 42% of CR and 19% of NCR. In each group, 24% of laboratories did not perform a vitality test. Procedural errors and the interchangeable utilization of two or even three methods to analyse a given parameter was observed in both groups. The results indicate a need for standardisation of the methods and continuous, unified training in semen analysis in Polish laboratories.

  17. An undergraduate ion beam analysis laboratory

    International Nuclear Information System (INIS)

    Hope College (in Holland, Michigan) purchased a 1.7 MV tandem pelletron with nuclear micro-probe capability with funding from the US National Science Foundation in 2004. The purpose of this facility is to perform publishable research in a variety of applied fields, and to provide educational opportunities and sophisticated technical training for undergraduates that will enter the workforce in science, technology, engineering and mathematics. Hope College has two senior investigators with experience in nuclear science and expertise with accelerators, and an institution with approximately 3200 undergraduates. The college also has a rich history of involving undergraduates in research and producing future Ph.D. scientists. The facility was installed and commissioned in October, 2004 and since that time hundreds of separate ion beam analysis experiments have been performed in fields as diverse as solid state physics, biochemistry, forensic science, electrochemistry, environmental science, mineralogy and palaeontology. Over 90% of the work has involved on-campus collaborations between different faculty members, and there are already over 50 different undergraduate research students that have been involved in ion beam analysis research. There are six manuscripts published or in press from this facility, with more than two dozen undergraduate co-authors. During the first four years, the facility has been operated entirely with undergraduates and a single technician who was trained to help maintain the facility. We have recently added a post-doctoral fellow to our research group to help with the large number of students that are interested in the research projects that have become possible with the new ion beam analysis facility. A brief tour of our facility and an overview of some of the successful research projects will be presented, plus some insights into best operating practices we have learned for maintaining a productive an ion beam analysis facility at an

  18. Clinical laboratory as an economic model for business performance analysis

    Science.gov (United States)

    Buljanović, Vikica; Patajac, Hrvoje; Petrovečki, Mladen

    2011-01-01

    Aim To perform SWOT (strengths, weaknesses, opportunities, and threats) analysis of a clinical laboratory as an economic model that may be used to improve business performance of laboratories by removing weaknesses, minimizing threats, and using external opportunities and internal strengths. Methods Impact of possible threats to and weaknesses of the Clinical Laboratory at Našice General County Hospital business performance and use of strengths and opportunities to improve operating profit were simulated using models created on the basis of SWOT analysis results. The operating profit as a measure of profitability of the clinical laboratory was defined as total revenue minus total expenses and presented using a profit and loss account. Changes in the input parameters in the profit and loss account for 2008 were determined using opportunities and potential threats, and economic sensitivity analysis was made by using changes in the key parameters. The profit and loss account and economic sensitivity analysis were tools for quantifying the impact of changes in the revenues and expenses on the business operations of clinical laboratory. Results Results of simulation models showed that operational profit of €470 723 in 2008 could be reduced to only €21 542 if all possible threats became a reality and current weaknesses remained the same. Also, operational gain could be increased to €535 804 if laboratory strengths and opportunities were utilized. If both the opportunities and threats became a reality, the operational profit would decrease by €384 465. Conclusion The operational profit of the clinical laboratory could be significantly reduced if all threats became a reality and the current weaknesses remained the same. The operational profit could be increased by utilizing strengths and opportunities as much as possible. This type of modeling may be used to monitor business operations of any clinical laboratory and improve its financial situation by

  19. Analysis of power demand signal in laboratory rotary mixer

    OpenAIRE

    K. Smyksy; R. Wrona; E. Ziółkowski

    2010-01-01

    The paper summarises the power measurement data for the main assemblies in a prototype turbine mixers for laboratory applications. Of particular interest are power demand signals in the paddle stirrer and the rotor. Tests were performed for the variable moisture content of the moulding sand containing bentonite. The process is described as dynamic and considered from the standpoint of automatics. Potential applications of the power demand signal are investigated in the context of the study of...

  20. ELAS - SCIENCE & TECHNOLOGY LABORATORY APPLICATIONS SOFTWARE (SUN VERSION)

    Science.gov (United States)

    Walters, D.

    1994-01-01

    The Science and Technology Laboratory Applications Software (ELAS) was originally designed to analyze and process digital imagery data, specifically remotely-sensed scanner data. This capability includes the processing of Landsat multispectral data; aircraft-acquired scanner data; digitized topographic data; and numerous other ancillary data, such as soil types and rainfall information, that can be stored in digitized form. ELAS has the subsequent capability to geographically reference this data to dozens of standard, as well as user created projections. As an integrated image processing system, ELAS offers the user of remotely-sensed data a wide range of capabilities in the areas of land cover analysis and general purpose image analysis. ELAS is designed for flexible use and operation and includes its own FORTRAN operating subsystem and an expandable set of FORTRAN application modules. Because all of ELAS resides in one "logical" FORTRAN program, data inputs and outputs, directives, and module switching are convenient for the user. There are over 230 modules presently available to aid the user in performing a wide range of land cover analyses and manipulation. The file management modules enable the user to allocate, define, access, and specify usage for all types of files (ELAS files, subfiles, external files etc.). Various other modules convert specific types of satellite, aircraft, and vector-polygon data into files that can be used by other ELAS modules. The user also has many module options which aid in displaying image data, such as magnification/reduction of the display; true color display; and several memory functions. Additional modules allow for the building and manipulation of polygonal areas of the image data. Finally, there are modules which allow the user to select and classify the image data. An important feature of the ELAS subsystem is that its structure allows new applications modules to be easily integrated in the future. ELAS has as a standard

  1. ELAS - SCIENCE & TECHNOLOGY LABORATORY APPLICATIONS SOFTWARE (DEC VAX VERSION)

    Science.gov (United States)

    Junkin, B. G.

    1994-01-01

    The Science and Technology Laboratory Applications Software (ELAS) was originally designed to analyze and process digital imagery data, specifically remotely-sensed scanner data. This capability includes the processing of Landsat multispectral data; aircraft-acquired scanner data; digitized topographic data; and numerous other ancillary data, such as soil types and rainfall information, that can be stored in digitized form. ELAS has the subsequent capability to geographically reference this data to dozens of standard, as well as user created projections. As an integrated image processing system, ELAS offers the user of remotely-sensed data a wide range of capabilities in the areas of land cover analysis and general purpose image analysis. ELAS is designed for flexible use and operation and includes its own FORTRAN operating subsystem and an expandable set of FORTRAN application modules. Because all of ELAS resides in one "logical" FORTRAN program, data inputs and outputs, directives, and module switching are convenient for the user. There are over 230 modules presently available to aid the user in performing a wide range of land cover analyses and manipulation. The file management modules enable the user to allocate, define, access, and specify usage for all types of files (ELAS files, subfiles, external files etc.). Various other modules convert specific types of satellite, aircraft, and vector-polygon data into files that can be used by other ELAS modules. The user also has many module options which aid in displaying image data, such as magnification/reduction of the display; true color display; and several memory functions. Additional modules allow for the building and manipulation of polygonal areas of the image data. Finally, there are modules which allow the user to select and classify the image data. An important feature of the ELAS subsystem is that its structure allows new applications modules to be easily integrated in the future. ELAS has as a standard

  2. ELAS - SCIENCE & TECHNOLOGY LABORATORY APPLICATIONS SOFTWARE (CONCURRENT VERSION)

    Science.gov (United States)

    Pearson, R. W.

    1994-01-01

    The Science and Technology Laboratory Applications Software (ELAS) was originally designed to analyze and process digital imagery data, specifically remotely-sensed scanner data. This capability includes the processing of Landsat multispectral data; aircraft-acquired scanner data; digitized topographic data; and numerous other ancillary data, such as soil types and rainfall information, that can be stored in digitized form. ELAS has the subsequent capability to geographically reference this data to dozens of standard, as well as user created projections. As an integrated image processing system, ELAS offers the user of remotely-sensed data a wide range of capabilities in the areas of land cover analysis and general purpose image analysis. ELAS is designed for flexible use and operation and includes its own FORTRAN operating subsystem and an expandable set of FORTRAN application modules. Because all of ELAS resides in one "logical" FORTRAN program, data inputs and outputs, directives, and module switching are convenient for the user. There are over 230 modules presently available to aid the user in performing a wide range of land cover analyses and manipulation. The file management modules enable the user to allocate, define, access, and specify usage for all types of files (ELAS files, subfiles, external files etc.). Various other modules convert specific types of satellite, aircraft, and vector-polygon data into files that can be used by other ELAS modules. The user also has many module options which aid in displaying image data, such as magnification/reduction of the display; true color display; and several memory functions. Additional modules allow for the building and manipulation of polygonal areas of the image data. Finally, there are modules which allow the user to select and classify the image data. An important feature of the ELAS subsystem is that its structure allows new applications modules to be easily integrated in the future. ELAS has as a standard

  3. ELAS - SCIENCE & TECHNOLOGY LABORATORY APPLICATIONS SOFTWARE (SILICON GRAPHICS VERSION)

    Science.gov (United States)

    Walters, D.

    1994-01-01

    The Science and Technology Laboratory Applications Software (ELAS) was originally designed to analyze and process digital imagery data, specifically remotely-sensed scanner data. This capability includes the processing of Landsat multispectral data; aircraft-acquired scanner data; digitized topographic data; and numerous other ancillary data, such as soil types and rainfall information, that can be stored in digitized form. ELAS has the subsequent capability to geographically reference this data to dozens of standard, as well as user created projections. As an integrated image processing system, ELAS offers the user of remotely-sensed data a wide range of capabilities in the areas of land cover analysis and general purpose image analysis. ELAS is designed for flexible use and operation and includes its own FORTRAN operating subsystem and an expandable set of FORTRAN application modules. Because all of ELAS resides in one "logical" FORTRAN program, data inputs and outputs, directives, and module switching are convenient for the user. There are over 230 modules presently available to aid the user in performing a wide range of land cover analyses and manipulation. The file management modules enable the user to allocate, define, access, and specify usage for all types of files (ELAS files, subfiles, external files etc.). Various other modules convert specific types of satellite, aircraft, and vector-polygon data into files that can be used by other ELAS modules. The user also has many module options which aid in displaying image data, such as magnification/reduction of the display; true color display; and several memory functions. Additional modules allow for the building and manipulation of polygonal areas of the image data. Finally, there are modules which allow the user to select and classify the image data. An important feature of the ELAS subsystem is that its structure allows new applications modules to be easily integrated in the future. ELAS has as a standard

  4. ELAS - SCIENCE & TECHNOLOGY LABORATORY APPLICATIONS SOFTWARE (MASSCOMP VERSION)

    Science.gov (United States)

    Walters, D.

    1994-01-01

    The Science and Technology Laboratory Applications Software (ELAS) was originally designed to analyze and process digital imagery data, specifically remotely-sensed scanner data. This capability includes the processing of Landsat multispectral data; aircraft-acquired scanner data; digitized topographic data; and numerous other ancillary data, such as soil types and rainfall information, that can be stored in digitized form. ELAS has the subsequent capability to geographically reference this data to dozens of standard, as well as user created projections. As an integrated image processing system, ELAS offers the user of remotely-sensed data a wide range of capabilities in the areas of land cover analysis and general purpose image analysis. ELAS is designed for flexible use and operation and includes its own FORTRAN operating subsystem and an expandable set of FORTRAN application modules. Because all of ELAS resides in one "logical" FORTRAN program, data inputs and outputs, directives, and module switching are convenient for the user. There are over 230 modules presently available to aid the user in performing a wide range of land cover analyses and manipulation. The file management modules enable the user to allocate, define, access, and specify usage for all types of files (ELAS files, subfiles, external files etc.). Various other modules convert specific types of satellite, aircraft, and vector-polygon data into files that can be used by other ELAS modules. The user also has many module options which aid in displaying image data, such as magnification/reduction of the display; true color display; and several memory functions. Additional modules allow for the building and manipulation of polygonal areas of the image data. Finally, there are modules which allow the user to select and classify the image data. An important feature of the ELAS subsystem is that its structure allows new applications modules to be easily integrated in the future. ELAS has as a standard

  5. Analysis of laboratory intercomparison data: a matter of independence

    Directory of Open Access Journals (Sweden)

    Mauro F. Rebelo

    2003-05-01

    Full Text Available When laboratory intercomparison exercises are conducted, there is no a priori dependence of the concentration of a certain compound determined in one laboratory to that determined by another(s. The same applies when comparing different methodologies. A existing data set of total mercury readings in fish muscle samples involved in a Brazilian intercomparison exercise was used to show that correlation analysis is the most effective statistical tool in this kind of experiments. Problems associated with alternative analytical tools such as mean or paired 't'-test comparison and regression analysis are discussed.

  6. Multi-robots to micro-surgery: Selected robotic applications at Sandia National Laboratories

    Energy Technology Data Exchange (ETDEWEB)

    Bennett, P.C. [Sandia National Labs., Albuquerque, NM (United States). Intelligent Systems and Robotics Center

    1996-11-01

    The Intelligent Systems and Robotics Center (ISRC) at Sandia National Laboratories is a multi-program organization, pursuing research, development and applications in a wide range of field. Activities range from large-scale applications such as nuclear facility dismantlement for the US Department of Energy (DOE), to aircraft inspection and refurbishment, to automated script and program generation for robotic manufacturing and assembly, to miniature robotic devices and sensors for remote sensing and micro-surgery. This paper describes six activities in the large and small scale that are underway and either nearing technology transfer stage or seeking industrial partners to continue application development. The topics of the applications include multiple arm coordination for intuitively maneuvering large, ungainly work pieces; simulation, analysis and graphical training capability for CP-5 research reactor dismantlement; miniature robots with volumes of 16 cubic centimeters and less developed for inspection and sensor deployment; and biomedical sensors to enhance automated prosthetic device production and fill laparoscopic surgery information gap.

  7. New Developments at NASA's Instrument Synthesis & Analysis Laboratory (ISAL)

    Science.gov (United States)

    Wood, H. John; Brown, Tammy L.; Herring, Ellen L.

    2006-01-01

    This viewgraph document reviews the work of NASA's Instrument Synthesis and Analysis Laboratory (ISAL). The work of the ISAL has substantially reduced the time required to develop an instrument concept. The document reviews the design process in detail and planned interaction with the end user of the instrument.

  8. Incorporating Basic Optical Microscopy in the Instrumental Analysis Laboratory

    Science.gov (United States)

    Flowers, Paul A.

    2011-01-01

    A simple and versatile approach to incorporating basic optical microscopy in the undergraduate instrumental analysis laboratory is described. Attaching a miniature CCD spectrometer to the video port of a standard compound microscope yields a visible microspectrophotometer suitable for student investigations of fundamental spectrometry concepts,…

  9. Transport Energy Impact Analysis; NREL (National Renewable Energy Laboratory)

    Energy Technology Data Exchange (ETDEWEB)

    Gonder, J.

    2015-05-13

    Presented at the Sustainable Transportation Energy Pathways Spring 2015 Symposium on May 13, 2015, this presentation by Jeff Gonder of the National Renewable Energy Laboratory (NREL) provides information about NREL's transportation energy impact analysis of connected and automated vehicles.

  10. Analysis of power demand signal in laboratory rotary mixer

    Directory of Open Access Journals (Sweden)

    K. Smyksy

    2010-04-01

    Full Text Available The paper summarises the power measurement data for the main assemblies in a prototype turbine mixers for laboratory applications. Of particular interest are power demand signals in the paddle stirrer and the rotor. Tests were performed for the variable moisture content of the moulding sand containing bentonite. The process is described as dynamic and considered from the standpoint of automatics. Potential applications of the power demand signal are investigated in the context of the study of dynamics of the mixing processes, in terms of control of the water feeding to the moulding sand and for the purpose of evaluating the energy consumption.

  11. New applications of Antrad Medical's thawing technology : Applications within the clinical and laboratory segment

    OpenAIRE

    Truvé, Malin; Kilegran, Johanna

    2016-01-01

    Antrad Medical has developed an ultra-fast blood plasma thawing device named UFT100. The method is based on thawing with an oscillating electrical field and unlike water baths it is a dry method. Fast and homogeneous thawing is achieved. This project investigates new possible applications where this thawing technology could be used within the clinical and laboratory segment. The aim was to identify existing thawing and heating methods for a substance that can be improved and potentially repla...

  12. Establishment of a clean chemistry laboratory at JAERI. Clean laboratory for environmental analysis and research (CLEAR)

    Energy Technology Data Exchange (ETDEWEB)

    Hanzawa, Yukiko; Magara, Masaaki; Watanabe, Kazuo [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment] [and others

    2003-02-01

    The JAERI has established a facility with a cleanroom: the Clean Laboratory for Environmental Analysis and Research (CLEAR). This report is an overview of the design, construction and performance evaluation of the CLEAR in the initial stage of the laboratory operation in June 2001. The CLEAR is a facility to be used for analyses of ultra trace amounts of nuclear materials in environmental samples for the safeguards, for the CTBT verification and for researches on environmental sciences. One of the special features of the CLEAR is that it meets double requirements of a cleanroom and for handling of nuclear materials. As another feature of the CLEAR, much attention was paid to the construction materials of the cleanroom for trace analysis of metal elements using considerable amounts of corrosive acids. The air conditioning and purification system, specially designed experimental equipment to provide clean work surfaces, utilities and safety systems are also demonstrated. The potential contamination from the completed cleanroom atmosphere during the analytical procedure was evaluated. It can be concluded that the CLEAR has provided a suitable condition for reliable analysis of ultra trace amounts of nuclear materials and other heavy elements in environmental samples. (author)

  13. The proposed Diagnostic Instrumentation and Analysis Laboratory, Mississippi State University

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-11-01

    The Department of Energy (DOE) proposes to authorize Mississippi State University (MSU) to proceed with the detailed design, construction and equipping of the proposed Diagnostic Instrumentation and Analysis Laboratory (DIAL). DOE grant funds are available to the University for the limited purpose of performing preliminary studies, including analysis necessary to conduct this environmental assessment. The proposed facility would be located in the Mississippi Research and Technology Park, adjacent to the Mississippi Agriculture and Forestry Experiment Station campus in Starkville, Mississippi. Total project cost is estimated at $7,953,600. This proposed laboratory would be designed to conduct research into combustion devices related to waste management and environmental restoration that is of importance to industry and government. The proposed facility`s role would be to develop diagnostic instrumentation capabilities in the area of combustion and related processes.

  14. Laser materials processing applications at Lawrence Livermore National Laboratory

    International Nuclear Information System (INIS)

    High power and high radiance laser technologies developed at Lawrence Livermore National Laboratory (LLNL) such as copper-vapor lasers, solid-state slab lasers, dye lasers, harmonic wavelength conversion of these lasers, and fiber optic delivery systems show great promise for material processing tasks. Evaluation of models suggests significant potential for tenfold increases in welding, cutting, and drilling performance, as well as capability for applications in emerging technologies such as micromachining, surface treatment, and stereolithography. Copper and dye laser systems are currently being developed at LLNL for uranium enrichment production facilities. The goals of this program are to develop low-cost, reliable and maintainable industrial laser systems. Chains of copper lasers currently operate at more than 1.5 kW output and achieve mean time between failures of more than 1,000 hours. The beam quality of copper vapor lasers is approximately three times the diffraction limit. Dye lasers have near diffraction limited beam quality at greater than 1.0 kW. Diode laser pumped, Nd:YAG slab lasers are also being developed at LLNL. Current designs achieve powers of greater than 1.0 kW and projected beam quality is in the two to five times diffraction limited range. Results from cutting and drilling studies in titanium and stainless steel alloys show that cuts and holes with extremely fine features can be made with dye and copper-vapor lasers. High radiance beams produce low distortion and small heat-affected zones. The authors have accomplished very high aspect ratio holes in drilling tests (> 60: 1) and features with micron scale (5-50 μm) sizes. Other, traditionally more difficult, materials such as copper, aluminum and ceramics will soon be studied in detail

  15. Needs analysis and project schedule for the Los Alamos National Laboratory (LANL) Health Physics Analysis Laboratory (HPAL) upgrade

    Energy Technology Data Exchange (ETDEWEB)

    Rhea, T.A.; Rucker, T.L. [Science Applications International Corp., Oak Ridge, TN (United States); Stafford, M.W. [NUS Corp., Aiken, SC (US)

    1990-09-28

    This report is a needs assessment and project schedule for the Health Physics Analysis Laboratory (HPAL) upgrade project at Los Alamos National Laboratory (LANL). After reviewing current and projected HPAL operations, two custom-developed laboratory information management systems (LIMS) for similar facilities were reviewed; four commercially available LIMS products were also evaluated. This project is motivated by new regulations for radiation protection and training and by increased emphasis on quality assurance (QA). HPAL data are used to: protect the health of radiation workers; document contamination levels for transportation of radioactive materials and for release of materials to the public for uncontrolled use; and verify compliance with environmental emission regulations. Phase 1 of the HPAL upgrade project concentrates on four types of counting instruments which support in excess of 90% of the sample workload at the existing central laboratories. Phase 2 is a refinement phase and also integrates summary-level databases on the central Health, Safety, and Environment (HSE) VAX. Phase 3 incorporates additional instrument types and integrates satellite laboratories into the HPAL LIMS. Phase 1 will be a multi-year, multimillion dollar project. The temptation to approach the upgrade of the HPAL program in a piece meal fashion should be avoided. This is a major project, with clearly-defined goals and priorities, and should be approached as such. Major programmatic and operational impacts will be felt throughout HSE as a result of this upgrade, so effective coordination with key customer contacts will be critical.

  16. Application of RAPD Markers in Laboratory Animal%RAPD技术在实验动物中的应用

    Institute of Scientific and Technical Information of China (English)

    张建珍; 马恩波

    2003-01-01

    With the sharp development of biomedicine, the protection and utilization of laboratory animal resources, and standardization of laboratory animal have been regarded as the theme of laboratory animal science. Many kinds of genetic markers were used in genetic background analysis, identification of species and strains, and breeding of laboratory animal, unlike morphological marker, cytological marker and isozyme marker, which revealed the difference at gene expressing level, molecular genetic markers used as an accurate and effective method reveal genetic variations of hereditary material, it plays an important role in many fields. The RAPD (Random Amplification Polymorphic DNA) method was firstly described in 1990, it has several distinct advantages over other techniques in that it is easy to perform and fast, and so was widely applied to taxonomy and identification of species, construction of genetic mapping, genetic relationships among species and population genetics. This paper summarized the application of RAPD markers in laboratory animal in recent 10 years.

  17. Survival analysis models and applications

    CERN Document Server

    Liu, Xian

    2012-01-01

    Survival analysis concerns sequential occurrences of events governed by probabilistic laws.  Recent decades have witnessed many applications of survival analysis in various disciplines. This book introduces both classic survival models and theories along with newly developed techniques. Readers will learn how to perform analysis of survival data by following numerous empirical illustrations in SAS. Survival Analysis: Models and Applications: Presents basic techniques before leading onto some of the most advanced topics in survival analysis.Assumes only a minimal knowledge of SAS whilst enablin

  18. The laboratorial diagnosis of dengue: Applications and implications

    OpenAIRE

    Nina Rocha Dutra; Marilia Barbosa de Paula; Michelle Dias de Oliveira; Leandro Licursi de Oliveira; Sergio Oliveira de Paula

    2009-01-01

    The diagnosis of infection by the dengue virus relies, in most cases, on the clinical judgment of the patient, since only a few major centers have clinical laboratories that offer diagnostic tests to confirm the clinical impressions of an infection. At present, routine laboratory diagnosis is done by different kinds of testing. Among them are the methods of serological research, virus isolation, detection of viral antigens, and detection of viral genomes. The continued development of diagnost...

  19. Application of SWOT analysis.

    Science.gov (United States)

    Casebeer, A

    SWOT analysis is an effective and simple planning technique which addresses one aspect of many strategic planning processes. Given the complex nature of modern health care systems, the ability to use this type of technique can enable health professionals to participate more fully in the analysis and implementation of health care improvement.

  20. Application of SWOT analysis.

    Science.gov (United States)

    Casebeer, A

    SWOT analysis is an effective and simple planning technique which addresses one aspect of many strategic planning processes. Given the complex nature of modern health care systems, the ability to use this type of technique can enable health professionals to participate more fully in the analysis and implementation of health care improvement. PMID:8472105

  1. Inter-laboratory consistency of gait analysis measurements.

    Science.gov (United States)

    Benedetti, M G; Merlo, A; Leardini, A

    2013-09-01

    The dissemination of gait analysis as a clinical assessment tool requires the results to be consistent, irrespective of the laboratory. In this work a baseline assessment of between site consistency of one healthy subject examined at 7 different laboratories is presented. Anthropometric and spatio-temporal parameters, pelvis and lower limb joint rotations, joint sagittal moments and powers, and ground reaction forces were compared. The consistency between laboratories for single parameters was assessed by the median absolute deviation and maximum difference, for curves by linear regression. Twenty-one lab-to-lab comparisons were performed and averaged. Large differences were found between the characteristics of the laboratories (i.e. motion capture systems and protocols). Different values for the anthropometric parameters were found, with the largest variability for a pelvis measurement. The spatio-temporal parameters were in general consistent. Segment and joint kinematics consistency was in general high (R2>0.90), except for hip and knee joint rotations. The main difference among curves was a vertical shift associated to the corresponding value in the static position. The consistency between joint sagittal moments ranged form R2=0.90 at the ankle to R2=0.66 at the hip, the latter was increasing when comparing separately laboratories using the same protocol. Pattern similarity was good for ankle power but not satisfactory for knee and hip power. The force was found the most consistent, as expected. The differences found were in general lower than the established minimum detectable changes for gait kinematics and kinetics for healthy adults.

  2. CURRENT APPLICATIONS OF THREE MILE ISLAND-2 CORE AND DEBRIS HANDLING AT THE IDAHO NATIONAL LABORATORY

    Energy Technology Data Exchange (ETDEWEB)

    Carmack, William Jonathan [Idaho National Laboratory; Braase, Lori Ann [Idaho National Laboratory

    2015-09-01

    Fuel recovery from severe accidents requires careful planning and execution. The Idaho National Laboratory played a key role in the Three Mile Island (TMI) fuel and core recovery. This involved technology development to locate and handle the damaged fuel; characterization of fuel and debris; analysis of fuel interaction with structural components and materials; development of fuel drying technology for long-term storage. However, one of the critical activities from the TMI project was the extensive effort document all the activities and archive the reports and photos. A historical review of the TMI project at the INL leads to the identification of current applications and considerations for facility designs, fuel handling, robotic applications, material characterization, etc.

  3. The laboratorial diagnosis of dengue: Applications and implications

    Directory of Open Access Journals (Sweden)

    Nina Rocha Dutra

    2009-01-01

    Full Text Available The diagnosis of infection by the dengue virus relies, in most cases, on the clinical judgment of the patient, since only a few major centers have clinical laboratories that offer diagnostic tests to confirm the clinical impressions of an infection. At present, routine laboratory diagnosis is done by different kinds of testing. Among them are the methods of serological research, virus isolation, detection of viral antigens, and detection of viral genomes. The continued development of diagnostic tests, which are cheap, sensitive, specific, easy to perform, and capable of giving early diagnosis of the dengue virus infection is still a need. There are also other obstacles that are not specifically related to the technological development of diagnostic methods. For instance, infrastructure of the laboratories, the training of personnel, and the capacity of research of these laboratories are still limited in many parts of Brazil and the world, where dengue is endemic. Clinical laboratories, especially the ones that serve regions with a high incidence of dengue, should be aware of all the diagnostic methods available for routine these days, and choose the one that best suit their working conditions and populations served, in order to save lives.

  4. Neutron activation analysis in an industrial laboratory using an off-site nuclear reactor

    International Nuclear Information System (INIS)

    A multifunctional research laboratory, such as Procter and Gamble's Miami Valley Laboratories, requires elemental analyses on many materials. A general survey technique is important even if the information it provides is incomplete or is less precise than single element analyses. Procter and Gamble has developed neutron activation analysis (NAA) capabilities using a nuclear reactor several hundred miles away. The concentration of 40 to 50 elements can be determined in a variety of matrices. We have found NAA to be a powerful supplement to some of the more classical analytical techniques even without having an on-site neutron source. We have also found an automated data acquisition system to be essential for the successful application of NAA in an industrial laboratory

  5. IMS applications analysis

    Energy Technology Data Exchange (ETDEWEB)

    RODACY,PHILIP J.; REBER,STEPHEN D.; SIMONSON,ROBERT J.; HANCE,BRADLEY G.

    2000-03-01

    This report examines the market potential of a miniature, hand-held Ion Mobility Spectrometer. Military and civilian markets are discussed, as well as applications in a variety of diverse fields. The strengths and weaknesses of competing technologies are discussed. An extensive Ion Mobility Spectrometry (IMS) bibliography is included. The conclusions drawn from this study are: (1) There are a number of competing technologies that are capable of detecting explosives, drugs, biological, or chemical agents. The IMS system currently represents the best available compromise regarding sensitivity, specificity, and portability. (2) The military market is not as large as the commercial market, but the military services are more likely to invest R and D funds in the system. (3) Military applications should be addressed before commercial applications are addressed. (4) There is potentially a large commercial market for rugged, hand-held Ion Mobility Spectrometer systems. Commercial users typically do not invest R and D funds in this type of equipment rather, they wait for off-the-shelf availability.

  6. Complement analysis 2016: Clinical indications, laboratory diagnostics and quality control.

    Science.gov (United States)

    Prohászka, Zoltán; Nilsson, Bo; Frazer-Abel, Ashley; Kirschfink, Michael

    2016-11-01

    In recent years, complement analysis of body fluids and biopsies, going far beyond C3 and C4, has significantly enhanced our understanding of the disease process. Such expanded complement analysis allows for a more precise differential diagnosis and for critical monitoring of complement-targeted therapy. These changes are a result of the growing understanding of the involvement of complement in a diverse set of disorders. To appreciate the importance of proper complement analysis, it is important to understand the role it plays in disease. Historically, it was the absence of complement as manifested in severe infection that was noted. Since then complement has been connected to a variety of inflammatory disorders, such as autoimmune diseases and hereditary angioedema. While the role of complement in the rejection of renal grafts has been known longer, the significant impact of complement. In certain nephropathies has now led to the reclassification of some rare kidney diseases and an increased role for complement analysis in diagnosis. Even more unexpected is that complement has also been implicated in neural, ophtalmological and dermatological disorders. With this level of involvement in some varied and impactful health issues proper complement testing is clearly important; however, analysis of the complement system varies widely among laboratories. Except for a few proteins, such as C3 and C4, there are neither well-characterized standard preparations nor calibrated assays available. This is especially true for the inter-laboratory variation of tests which assess classical, alternative, or lectin pathway function. In addition, there is a need for the standardization of the measurement of complement activation products that are so critical in determining whether clinically relevant complement activation has occurred in vivo. Finally, autoantibodies to complement proteins (e.g. anti-C1q), C3 and C4 convertases (C3 and C4 nephritic factor) or to regulatory proteins

  7. Complement analysis 2016: Clinical indications, laboratory diagnostics and quality control.

    Science.gov (United States)

    Prohászka, Zoltán; Nilsson, Bo; Frazer-Abel, Ashley; Kirschfink, Michael

    2016-11-01

    In recent years, complement analysis of body fluids and biopsies, going far beyond C3 and C4, has significantly enhanced our understanding of the disease process. Such expanded complement analysis allows for a more precise differential diagnosis and for critical monitoring of complement-targeted therapy. These changes are a result of the growing understanding of the involvement of complement in a diverse set of disorders. To appreciate the importance of proper complement analysis, it is important to understand the role it plays in disease. Historically, it was the absence of complement as manifested in severe infection that was noted. Since then complement has been connected to a variety of inflammatory disorders, such as autoimmune diseases and hereditary angioedema. While the role of complement in the rejection of renal grafts has been known longer, the significant impact of complement. In certain nephropathies has now led to the reclassification of some rare kidney diseases and an increased role for complement analysis in diagnosis. Even more unexpected is that complement has also been implicated in neural, ophtalmological and dermatological disorders. With this level of involvement in some varied and impactful health issues proper complement testing is clearly important; however, analysis of the complement system varies widely among laboratories. Except for a few proteins, such as C3 and C4, there are neither well-characterized standard preparations nor calibrated assays available. This is especially true for the inter-laboratory variation of tests which assess classical, alternative, or lectin pathway function. In addition, there is a need for the standardization of the measurement of complement activation products that are so critical in determining whether clinically relevant complement activation has occurred in vivo. Finally, autoantibodies to complement proteins (e.g. anti-C1q), C3 and C4 convertases (C3 and C4 nephritic factor) or to regulatory proteins

  8. Interior Architectural Requirements for Electronic Circuits and its Applications Research Laboratory

    International Nuclear Information System (INIS)

    This paper discusses the pivotal role of the Interior Architecture As one of the scientific disciplines minute to complete the Architectural Sciences, which relied upon the achievement and development of facilities containing scientific research laboratories, in terms of planning and design, particularly those containing biological laboratories using radioactive materials, adding to that, the application of the materials or raw materials commensurate with each discipline of laboratory and its work nature, and by the discussion the processing of design techniques and requirements of interior architecture dealing with Research Laboratory for electronic circuits and their applications with the making of its prototypes

  9. Harmonic analysis and applications

    CERN Document Server

    Heil, Christopher

    2007-01-01

    This self-contained volume in honor of John J. Benedetto covers a wide range of topics in harmonic analysis and related areas. These include weighted-norm inequalities, frame theory, wavelet theory, time-frequency analysis, and sampling theory. The chapters are clustered by topic to provide authoritative expositions that will be of lasting interest. The original papers collected are written by prominent researchers and professionals in the field. The book pays tribute to John J. Benedetto's achievements and expresses an appreciation for the mathematical and personal inspiration he has given to

  10. Some examples of applications of a microthermal desorption device in the forensic laboratory.

    Science.gov (United States)

    Andrasko, Jan

    2009-09-01

    Several applications of a microthermal desorption device for analysis of small forensic samples are presented. The method uses a solid phase microextraction holder with the fiber removed. In addition to samples of inks on paper, this device was successfully used for analysis of toners, various stains on bank notes, and lipstick stains on paper. Other small items encountered in a forensic science laboratory were also analyzed: particles of smokeless powder, particles of coffee, and automotive clear topcoat layer. The desorbed compounds were analyzed by gas chromatography with a flame ionization detector or by gas chromatography-mass spectrometry. This device can be used in connection with any kind of gas chromatograph. By selection of different injector temperatures, fractionated thermal desorption of samples is achieved. The procedure was demonstrated on samples of ballpoint pen ink of various age. PMID:19686398

  11. Cost analysis of energy storage systems for electric utility applications

    Energy Technology Data Exchange (ETDEWEB)

    Akhil, A. [Sandia National Lab., Albuquerque, NM (United States); Swaminathan, S.; Sen, R.K. [R.K. Sen & Associates, Inc., Bethesda, MD (United States)

    1997-02-01

    Under the sponsorship of the Department of Energy, Office of Utility Technologies, the Energy Storage System Analysis and Development Department at Sandia National Laboratories (SNL) conducted a cost analysis of energy storage systems for electric utility applications. The scope of the study included the analysis of costs for existing and planned battery, SMES, and flywheel energy storage systems. The analysis also identified the potential for cost reduction of key components.

  12. Real analysis with economic applications

    CERN Document Server

    Ok, Efe A

    2011-01-01

    There are many mathematics textbooks on real analysis, but they focus on topics not readily helpful for studying economic theory or they are inaccessible to most graduate students of economics. Real Analysis with Economic Applications aims to fill this gap by providing an ideal textbook and reference on real analysis tailored specifically to the concerns of such students. The emphasis throughout is on topics directly relevant to economic theory. In addition to addressing the usual topics of real analysis, this book discusses the elements of order theory, convex analysis, optimizatio

  13. Quality Assurance and Control in Laboratory using Neutron Activation Analysis

    International Nuclear Information System (INIS)

    In accordance with the increment of international trade associated with the worldwide globalization, the importance of quality assurance and control for the commodity produced from one's own country has been stressed. ISO (International Organization for Standards) defines quality control as 'the operational techniques and activities that are used to fulfill the requirements for quality'. Since 1996, the HANARO research reactor in the Korea Atomic Energy Research Institute has been operated thereafter initial critical operation on April 1995. Neutron activation analysis system and applied techniques which is one of a nuclear analytical technologies using reactor neutrons has been developed for user's supporting and the establishment of the quality system for a measurement and analysis, testing and inspection was implemented successfully. On the basis of the qualified NAA system, the test and measurement of more than 1500 samples which is requested from 30 organizations including industrial companies, universities and institutes carried out in NAA laboratory annually. Moreover, as the goal of mutual recognition agreement (MRA) which can be removed a technical barrier in international trade, the objectivity and the confidence of analytical quality in NAA laboratory became established through the installation of international accreditation system by implementing analytical quality system in accordance with international standards in 2001. The aim of the report was to summarize the technical management of introduction, methods and the results for a quality control and assurance which should be performed in NAA technique using the HANARO research reactor. The report will help building up effective quality control strategy in the future

  14. Soil examination for a forensic trace evidence laboratory - Part 2: Elemental analysis.

    Science.gov (United States)

    Woods, Brenda; Paul Kirkbride, K; Lennard, Chris; Robertson, James

    2014-12-01

    Laser-induced breakdown spectroscopy (LIBS), X-ray fluorescence spectroscopy (XRF) and scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDX) are compared in terms of their discrimination power when applied to Australian soil specimens. SEM/EDX and XRF are frequently used in forensic laboratories for the elemental analysis of paint and glass, and for miscellaneous examinations. LIBS is an emerging technique for forensic applications, with a number of researchers promoting its use for the elemental profiling of glass fragments. In this study, 29 soil specimens were analysed, with 12 specimens coming from the Canberra area and the remaining 17 specimens from other sites around Australia. As very good discrimination results were obtained for each of the analytical methods, any of these elemental analysis techniques, available in a trace evidence laboratory, could be used as part of a wider examination protocol to differentiate soil specimens.

  15. Federal laboratory nondestructive testing research and development applicable to industry

    Energy Technology Data Exchange (ETDEWEB)

    Smith, S.A.; Moore, N.L.

    1987-02-01

    This document presents the results of a survey of nondestructive testing (NDT) and related sensor technology research and development (R and D) at selected federal laboratories. Objective was to identify and characterize NDT activities that could be applied to improving energy efficiency and overall productivity in US manufacturing. Numerous federally supported R and D programs were identified in areas such as acoustic emissions, eddy current, radiography, computer tomography and ultrasonics. A Preliminary Findings Report was sent to industry representatives, which generated considerable interest.

  16. 全国医院检验科临床检验项目基本情况现状调查与分析%Investigation and analysis of current application status of testing items of clinical laboratories in China

    Institute of Scientific and Technical Information of China (English)

    钟堃; 王薇; 何法霖; 王治国

    2015-01-01

    目的:了解我国目前医院检验科所涉及的检验项目、各项目检测量、所需费用以及检验项目周转时间( TAT)等情况。统计出所占统计量比重较大的检验项目,以期更好的进行质量控制,为财政投入以及政策制定给出建议。方法在我国每个省、自治区和直辖市中(除西藏和台湾)随机选取三级甲等医院、三级医院和二级医院各3家,共270家医院。向医院检验科负责人发送调查表,检验科通过卫生部临床检验中心网络系统回报调查表。结果汇总后使用Microsoft Excel 2007进行统计分析。所调查的信息包括:医院基本信息、所开展的检验项目、组合项目、年检测量、收费、TAT等。结果270家医院都回报了有效结果,回报率为100%。检验单项共628项。临床免疫、血清学的检验项目种类最多,230项,占36.62%(230/628)。临床生物化学专业的总检测量最高达到59.97%。检测量最多的前100个检验单项的检测量之和超过了所有项目检测总量的90%。收费最多的前100个检验单项的收费之和超过了收费总和的85%。结论本次调查研究所得到的我国医院检验科的检验项目、检测量、收费、TAT等相关信息,可以为我国检验学相关项目和专业的质量控制、财政投入以及政策制定提供有参考价值的信息。(中华检验医学杂志,2015,38:637-641)%Objective To investigate the current application status of clinical laboratories in China, including:testing items, the testing amount of each item, total cost of each item and turnaround time ( TAT) of each item.The testing tem with larger proportion of testing amount required better quality control, more financial investment and policy making.Methods Except Tibet and Taiwan, 30 provinceswere included in this investigation.3 grade A tertiary hospitals, 3 tertiary hospitals and 3 secondary hospitals were

  17. 75 FR 80061 - Abbott Laboratories, Inc.; Withdrawal of Approval of a New Drug Application for MERIDIA

    Science.gov (United States)

    2010-12-21

    ... HUMAN SERVICES Food and Drug Administration Abbott Laboratories, Inc.; Withdrawal of Approval of a New... (sibutramine hydrochloride (HCl)) oral capsules held by Abbott Laboratories, Inc. (Abbott), 100 Abbott Park Rd., Abbott Park, IL 60064. Abbott has voluntarily requested that approval of this application be...

  18. Optimization of application execution in the ViroLab Virtual Laboratory

    NARCIS (Netherlands)

    M. Malawski; J. Kocot; E. Ciepiela; M. Bubak

    2007-01-01

    The objective of the presented work is to describe an optimization engine for the ViroLab Virtual Laboratory runtime. The Laboratory specific model - invocation of operations on special objects which reside on Grid resources - imposes a new approach to optimization of Grid application execution. Suc

  19. Bitcoin – Analysis and Application

    OpenAIRE

    Vavrovič, Maroš

    2014-01-01

    In the bachelors thesis I analyze number one virtual currency -- Bitcoin. The main objectives are to answer fundamental questions of Bitcoin users, determine its potential, benefits and threats along with possible application for individuals and businesses. The thesis is divided into three sections that introduce virtual currencies, analyze Bitcoin and point out application opportunities. Analysis of Bitcoin determines its value and monetary background together with main threats threatening n...

  20. Traking of Laboratory Debris Flow Fronts with Image Analysis

    Science.gov (United States)

    Queiroz de Oliveira, Gustavo; Kulisch, Helmut; Fischer, Jan-Thomas; Scheidl, Christian; Pudasaini, Shiva P.

    2015-04-01

    Image analysis technique is applied to track the time evolution of rapid debris flow fronts and their velocities in laboratory experiments. These experiments are parts of the project avaflow.org that intends to develop a GIS-based open source computational tool to describe wide spectrum of rapid geophysical mass flows, including avalanches and real two-phase debris flows down complex natural slopes. The laboratory model consists of a large rectangular channel 1.4m wide and 10m long, with adjustable inclination and other flow configurations. The setup allows investigate different two phase material compositions including large fluid fractions. The large size enables to transfer the results to large-scale natural events providing increased measurement accuracy. The images are captured by a high speed camera, a standard digital camera. The fronts are tracked by the camera to obtain data in debris flow experiments. The reflectance analysis detects the debris front in every image frame; its presence changes the reflectance at a certain pixel location during the flow. The accuracy of the measurements was improved with a camera calibration procedure. As one of the great problems in imaging and analysis, the systematic distortions of the camera lens are contained in terms of radial and tangential parameters. The calibration procedure estimates the optimal values for these parameters. This allows us to obtain physically correct and undistorted image pixels. Then, we map the images onto a physical model geometry, which is the projective photogrammetry, in which the image coordinates are connected with the object space coordinates of the flow. Finally, the physical model geometry is rewritten in the direct linear transformation form, which allows for the conversion from one to another coordinate system. With our approach, the debris front position can then be estimated by combining the reflectance, calibration and the linear transformation. The consecutive debris front

  1. An automated image analysis system to measure and count organisms in laboratory microcosms.

    Science.gov (United States)

    Mallard, François; Le Bourlot, Vincent; Tully, Thomas

    2013-01-01

    1. Because of recent technological improvements in the way computer and digital camera perform, the potential use of imaging for contributing to the study of communities, populations or individuals in laboratory microcosms has risen enormously. However its limited use is due to difficulties in the automation of image analysis. 2. We present an accurate and flexible method of image analysis for detecting, counting and measuring moving particles on a fixed but heterogeneous substrate. This method has been specifically designed to follow individuals, or entire populations, in experimental laboratory microcosms. It can be used in other applications. 3. The method consists in comparing multiple pictures of the same experimental microcosm in order to generate an image of the fixed background. This background is then used to extract, measure and count the moving organisms, leaving out the fixed background and the motionless or dead individuals. 4. We provide different examples (springtails, ants, nematodes, daphnia) to show that this non intrusive method is efficient at detecting organisms under a wide variety of conditions even on faintly contrasted and heterogeneous substrates. 5. The repeatability and reliability of this method has been assessed using experimental populations of the Collembola Folsomia candida. 6. We present an ImageJ plugin to automate the analysis of digital pictures of laboratory microcosms. The plugin automates the successive steps of the analysis and recursively analyses multiple sets of images, rapidly producing measurements from a large number of replicated microcosms. PMID:23734199

  2. An automated image analysis system to measure and count organisms in laboratory microcosms.

    Directory of Open Access Journals (Sweden)

    François Mallard

    Full Text Available 1. Because of recent technological improvements in the way computer and digital camera perform, the potential use of imaging for contributing to the study of communities, populations or individuals in laboratory microcosms has risen enormously. However its limited use is due to difficulties in the automation of image analysis. 2. We present an accurate and flexible method of image analysis for detecting, counting and measuring moving particles on a fixed but heterogeneous substrate. This method has been specifically designed to follow individuals, or entire populations, in experimental laboratory microcosms. It can be used in other applications. 3. The method consists in comparing multiple pictures of the same experimental microcosm in order to generate an image of the fixed background. This background is then used to extract, measure and count the moving organisms, leaving out the fixed background and the motionless or dead individuals. 4. We provide different examples (springtails, ants, nematodes, daphnia to show that this non intrusive method is efficient at detecting organisms under a wide variety of conditions even on faintly contrasted and heterogeneous substrates. 5. The repeatability and reliability of this method has been assessed using experimental populations of the Collembola Folsomia candida. 6. We present an ImageJ plugin to automate the analysis of digital pictures of laboratory microcosms. The plugin automates the successive steps of the analysis and recursively analyses multiple sets of images, rapidly producing measurements from a large number of replicated microcosms.

  3. Cloud Storage Client Application Analysis

    Directory of Open Access Journals (Sweden)

    Rakesh Malik

    2015-06-01

    Full Text Available The research proposed in this paper focuses on gathering evidence from devices with UNIX/Linux systems (in particular on Ubuntu 14.04 and Android OS, and Windows 8.1, in order to find artifacts left by cloud storage applications that suggests their use even after the deletion of the applications. The work performed aims to expand upon the prior work done by other researches in the field of cloud forensics and to show an example of analysis. We show where and what type of data remnants can be found using our analysis and how this information can be used as evidence in a digital forensic investigation.

  4. Assessment of implementation of quality management system in laboratory research and food analysis

    Directory of Open Access Journals (Sweden)

    Daniel Mariano Leite

    2009-12-01

    Full Text Available The reliability of the results generated in analytical laboratory either for the development of new methods or for the appropriate use of methodologies already regulated, is essential to ensure that consumers are receiving a nutritionally adequate and safe food. In this context, traceability has been one of the main requirements required in the analysis, once this allows comparability between results of measurements carried out in different situations, usingvalues of metrological references, clearly defined, within internationally accepted criteria. The objective of this research was to assess the activities developed in a laboratory for research and analysis of food, about the accordance of item 4, which is established requirements of Direction, and the item 5, technical requirements of ISO/IEC 17025:2005, to guide correction of non conformities and internal organization. Initially there was a check list for verification of compliance for the activities developed in the laboratory. When the non-conformities were found, the staff was trained and was applied the 5S System. In applying the first check list in accordance with the item 4, the laboratory was classified in Group 3 of the Standard, with 57.14% of non-conformities, after training and implementation of corrective measures. In a new application of check list, the laboratory was classified in Group 2, and was occurred reduction of 37.5% of non-conformities. As to item 5, the laboratory was classified in Group 2, with 44.44% of non-conformities. After the training and corrective measures, there was reduction of 54% of non-conformities. It can be concluded that for elimination of nonconformance is required to train staff and implement tools such as 5S System and especially encourage the involvement of employees

  5. Laboratory Identity: A Linguistic Landscape Analysis of Personalized Space within a Microbiology Laboratory

    Science.gov (United States)

    Hanauer, David I.

    2010-01-01

    This study provides insights into what constitutes a laboratory identity and the ways in which it is spatially constructed. This article explores students' professional identities as microbiologists as manifest in their usage of representational space in a laboratory and as such extends understandings of science identity and spatial identity. The…

  6. Analysis of mobile applications market

    OpenAIRE

    Cirok, Boris

    2012-01-01

    The subject of this bachelor's thesis is the analysis of mobile applications market. The thesis introduces the largest companies on mobile market and their distribution channels, which it examines further. It is divided into an introductory theoretical part and an analytical part. The target is to form an image of the state of the market, its development and possible future. The data for the analysis are derived from the reports of analytic firms and other internet sources. A summary of requi...

  7. Quality Assurance and Control in Laboratory using Neutron Activation Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Chung, Y. S.; Moon, J. H.; Sun, G. M.; Kim, S. H.; Baek, S. Y.; Lim, J. M.; Kim, H. R

    2007-01-15

    In accordance with the increment of international trade associated with the worldwide globalization, the importance of quality assurance and control for the commodity produced from one's own country has been stressed. ISO (International Organization for Standards) defines quality control as 'the operational techniques and activities that are used to fulfill the requirements for quality'. Since 1996, the HANARO research reactor in the Korea Atomic Energy Research Institute has been operated thereafter initial critical operation on April 1995. Neutron activation analysis system and applied techniques which is one of a nuclear analytical technologies using reactor neutrons has been developed for user's supporting and the establishment of the quality system for a measurement and analysis, testing and inspection was implemented successfully. On the basis of the qualified NAA system, the test and measurement of more than 1500 samples which is requested from 30 organizations including industrial companies, universities and institutes carried out in NAA laboratory annually. Moreover, as the goal of mutual recognition agreement (MRA) which can be removed a technical barrier in international trade, the objectivity and the confidence of analytical quality in NAA laboratory became established through the installation of international accreditation system by implementing analytical quality system in accordance with international standards in 2001. The aim of the report was to summarize the technical management of introduction, methods and the results for a quality control and assurance which should be performed in NAA technique using the HANARO research reactor. The report will help building up effective quality control strategy in the future.

  8. Grid3: An Application Grid Laboratory for Science

    CERN Document Server

    CERN. Geneva

    2004-01-01

    level services required by the participating experiments. The deployed infrastructure has been operating since November 2003 with 27 sites, a peak of 2800 processors, work loads from 10 different applications exceeding 1300 simultaneous jobs, and data transfers among sites of greater than 2 TB/day. The Grid3 infrastructure was deployed from grid level services provided by groups and applications within the collaboration. The services were organized into four distinct "grid level services" including: Grid3 Packaging, Monitoring and Information systems, User Authentication and the iGOC Grid Operatio...

  9. Application of flexible scope in large testing laboratories

    Directory of Open Access Journals (Sweden)

    Carina Di Candia

    2011-04-01

    Full Text Available According as the international definition of Flexible Scope, a laboratory must demonstrate face with the accreditation body that it has the knowledge, experience and competence to work within the full range of its flexible scope, as well as possessing suitable laboratory environments and equipment. The laboratory must also demonstrate that it has a management system in place that can control its proposed approach while continuing to comply with the requirements of ISO 17025:2005. In case of UKAS (Unites Kingdom Accreditation Service, prior to offering accreditation for flexible scope they must have a high degree of confidence that the staff are technically competent and that the management system controlling certain key processes as development, review, validation and authorization.LATU apply these requirements since 2004 as "Unified Tests". Until this date, LATU was doing the same type of tests in different materials departments using different equipment, personal, and testing quality control. In order to that were defined cross disciplinary groups to analyze this topic approaching in personal competence and quality control tests improvement, and resource's decrease. For example, LATU has the Unified Test Tensile Strength accredited by UKAS in: corrugated and solid fiberboard, paper board, linerboard, cork plugs, plastic bags, plastic sheeting, paper, woven fabrics, plastic woven bags and woven plastic. As a result of the Unified Tests was generated a general unified manage procedure with unified criteria's, responsibilities and actions. Was written a unique testing procedure not only with the actual flexible scope and the flexibilities limits but also the compliance requirements of ISO 17025 and the accreditations body methodology. We could decrease the amount of documentation to control. Was defined the methodology and implemented periodicaly internal inter comparisons between departments in order to valid the unified tests and has a unique

  10. Analysis of students’ generated questions in laboratory learning environments

    OpenAIRE

    Juan Antonio Llorens-Molina; Jesús María Llorens de Jaime; Isidora Sanz Berzosa

    2012-01-01

    In order to attain a reliable laboratory work assessment, we argue taking the Learning Environment as a core concept and a research paradigm that considers the factors affecting the laboratory as a particularly complex educational context. With regard to Laboratory Learning Environments (LLEs), a well known approach is the SLEI (Science Laboratory Environment Inventory). The aim of this research is to design and apply an alternative and qualitative assessment tool to chara...

  11. Mars Science Laboratory Launch-Arrival Space Study: A Pork Chop Plot Analysis

    Science.gov (United States)

    Cianciolo, Alicia Dwyer; Powell, Richard; Lockwood, Mary Kae

    2006-01-01

    Launch-Arrival, or "pork chop", plot analysis can provide mission designers with valuable information and insight into a specific launch and arrival space selected for a mission. The study begins with the array of entry states for each pair of selected Earth launch and Mars arrival dates, and nominal entry, descent and landing trajectories are simulated for each pair. Parameters of interest, such as maximum heat rate, are plotted in launch-arrival space. The plots help to quickly identify launch and arrival regions that are not feasible under current constraints or technology and also provide information as to what technologies may need to be developed to reach a desired region. This paper provides a discussion of the development, application, and results of a pork chop plot analysis to the Mars Science Laboratory mission. This technique is easily applicable to other missions at Mars and other destinations.

  12. Measurement of Henry's Law Constants Using Internal Standards: A Quantitative GC Experiment for the Instrumental Analysis or Environmental Chemistry Laboratory

    Science.gov (United States)

    Ji, Chang; Boisvert, Susanne M.; Arida, Ann-Marie C.; Day, Shannon E.

    2008-01-01

    An internal standard method applicable to undergraduate instrumental analysis or environmental chemistry laboratory has been designed and tested to determine the Henry's law constants for a series of alkyl nitriles. In this method, a mixture of the analytes and an internal standard is prepared and used to make a standard solution (organic solvent)…

  13. SAS Applications (Statistical Analysis System)

    International Nuclear Information System (INIS)

    The objective of this work is to make divulge the experiences acquired in the National Institute of Nuclear Research utilizing the statistical analysis system (SAS) software that this institution has been acquired from July 1989, searching with those to stablish a profitable interaction with other institutions and or National or foreign enterprises. Without tooking of specific applications, we can secure that the experimented field, to convey to no end of applications so much in the researching as in the industry, helping widely in these areas to the make decisions. To agree to make clear that has been working exclusively with SAS/STAT that is a software module that it contains powerful procedures of statistical analysis. The application fields developed are the experimental design and the regression analysis studying the phenomena response using the classical statistic methods. Furthermore, in experimental design has been maked one way analysis, aleatorized blocks, latin squares, greco-latin, passing by the multiple factorial until more complex incomplete blocks or divided parcel designs; all of these with the corresponding studies about sample size and errors analysis types I and II, so much for fixed or aleatory effects. In the regression field and utilizing the least square method, it was obtained linear regression models truly with repeated measures, as soon as quadratic models and multiple regression. (Author)

  14. Survey and analysis of materials research and development at selected federal laboratories

    Energy Technology Data Exchange (ETDEWEB)

    Reed, J.E.; Fink, C.R.

    1984-04-01

    This document presents the results of an effort to transfer existing, but relatively unknown, materials R and D from selected federal laboratories to industry. More specifically, recent materials-related work at seven federal laboratories potentially applicable to improving process energy efficiency and overall productiviy in six energy-intensive manufacturing industries was evaluated, catalogued, and distributed to industry representatives to gauge their reaction. Laboratories surveyed include: Air Force Wright Aeronautical Laboratories Material Laboratory (AFWAL). Pacific Northwest Laboratory (PNL), National Aeronautics and Space Administration Marshall Flight Center (NASA Marshall), Oak Ridge National Laboratory (ORNL), Brookhaven National Laboratory (BNL), Idaho National Engineering Laboratory (INEL), and Jet Propulsion Laboratory (JPL). Industries included in the effort are: aluminum, cement, paper and allied products, petroleum, steel and textiles.

  15. The International Atomic Energy Agency's Laboratories Seibersdorf and Vienna. Meeting the challenges of research and international co-operation in the application of nuclear techniques

    International Nuclear Information System (INIS)

    The International Atomic Energy Agency therefore maintains a unique, multidisciplinary, analytical, research and training centre: the IAEA Laboratories, located at Seibersdorf near Vienna and at the Agency's Headquarters in the Vienna International Centre. They are organized in three branches: (i) the FAO/IAEA Agriculture and Biotechnology Laboratory: Soil Science, Plant Breeding, Animal Production and Health, Entomology, Agrochemicals; (ii) the Physics, Chemistry and Instrumentation Laboratory: Chemistry, Instrumentation, Dosimetry, Isotope Hydrology; (iii) the Safeguards Analytical Laboratory: Isotopic Analysis, Chemical Analysis, Clean Laboratory. 'The Mission of the IAEA Laboratories is to contribute to the implementation of the Agency's programmes in food and agriculture, human health, physical and chemical sciences, water resources, industry, environment, radiation protection and safeguards verification'. Together with a General Services and Safety Section, which provides logistics, information, industrial safety and maintenance services and runs a mechanical workshop, the three groups form the 'Seibersdorf Laboratories' and are part of the IAEA Department of Nuclear Sciences and Applications. The Laboratories contribute an important share to projects fostering peaceful applications of radiation and isotopes and radiation protection, and play a significant part in the nuclear verification mechanism. All activities are therefore planned and implemented in close co-operation with relevant divisions and departments of the IAEA. In specific sectors, the Laboratories also operate in conjunction with other organizations in the UN system, such as the Food and Agriculture Organization (FAO), the World Health Organization (WHO) and the World Meteorological Organization (WMO), and with networks of national laboratories in Member States

  16. Transverse dispersion: From laboratory experiments to field applications

    Science.gov (United States)

    Grathwohl, Peter; Rügner, Hermann

    2016-04-01

    Transverse dispersion is relevant for dilution of contaminant plumes in groundwater and in many cases controls the length of steady state plumes during natural attenuation. Also dissolution kinetics of NAPLs in porous media and mass transfer of vapor phase compounds across the capillary fringe (e.g. supply of oxygen) is limited by transverse dispersion. In bench scale laboratory experiments typically very small dispersion coefficients are observed. Transverse dispersivities determined in DNAPL pool dissolution experiments in coarse sands are less than 0.1 mm which agrees with results from lab experiments on dilution of tracers and transfer of oxygen across the capillary fringe. Such low dispersivities lead to long-term persistence of DNAPL pools of many decades to centuries which is confirmed e.g. for chlorinated solvents and coal tars by observations at contaminated sites. However, larger scale investigations, e.g. determination of the length of steady state plumes or reduction of mass fluxes of biodegradable compounds suggest that transverse dispersivities at field scale are up to 3 orders of magnitude higher (1 -10 cm). Reasons for this discrepancy are still unclear, but may be partly explained by processes enhancing transverse mixing such as flow focusing due to aquifer geometries or high permeability inclusions and helical groundwater flow induced by herringbone structures in sediments.

  17. Development of hollow anode penning ion source for laboratory application

    Science.gov (United States)

    Das, B. K.; Shyam, A.; Das, R.; Rao, A. D. P.

    2012-03-01

    The research work presented here focuses for the development of miniature penning type ion source. One hollow anode penning type ion source was developed in our laboratory. The size of the ion source is 38 mm diameter and 55 mm length. The ion source consists of two cathodes, a hollow anode and one piece of rare earth permanent magnet. The plasma was created in the plasma region between cathodes and the hollow anode. The J × B force in the region helps for efficient ionization of the gas even in the high vacuum region˜1×10 -5 Torr. The ions were extracted in the axial direction with help of the potential difference between the electrodes and the geometry of the extraction angle. The effect of the extraction electrode geometry for efficient extraction of the ions from the plasma region was examined. This ion source is a self extracted ion source. The self extracted phenomena reduce the cost and the size of the ion source. The extracted ion current was measured by a graphite probe. An ion current of more than 200 μA was observed at the probe placed 70 mm apart from the extraction electrode. In this paper, the structure of the ion source, effect of operating pressure, potential difference and the magnetic field on the extracted ion current is reported.

  18. Development of hollow anode penning ion source for laboratory application

    International Nuclear Information System (INIS)

    The research work presented here focuses for the development of miniature penning type ion source. One hollow anode penning type ion source was developed in our laboratory. The size of the ion source is 38 mm diameter and 55 mm length. The ion source consists of two cathodes, a hollow anode and one piece of rare earth permanent magnet. The plasma was created in the plasma region between cathodes and the hollow anode. The J × B force in the region helps for efficient ionization of the gas even in the high vacuum region∼1×10-5 Torr. The ions were extracted in the axial direction with help of the potential difference between the electrodes and the geometry of the extraction angle. The effect of the extraction electrode geometry for efficient extraction of the ions from the plasma region was examined. This ion source is a self extracted ion source. The self extracted phenomena reduce the cost and the size of the ion source. The extracted ion current was measured by a graphite probe. An ion current of more than 200 μA was observed at the probe placed 70 mm apart from the extraction electrode. In this paper, the structure of the ion source, effect of operating pressure, potential difference and the magnetic field on the extracted ion current is reported.

  19. Deuterated glycoaldehyde: laboratory measurements, analysis and proposed astrophysical research

    Science.gov (United States)

    Walters, A.; Bouchez, A.; Margules, L.; Motiyenko, R.; Guillemin, J. C.; Bottinelli, S.; Ceccarelli, C.; Kahane, C.

    2011-05-01

    We have measured in the laboratory the spectra of all the monosubstituted isotopologues of glycoaldehyde (CH_2OD-CHO, CHDOH-CHO, CH_2OH-CDO) and one doubly substituted one (CHDOH-CDO). The spectra were measured, between 150 and 630 GHz, with the new Lille submillimetre-wave spectrometer based on harmonic generation of solid-state sources. The samples were provided by Rennes. Apart from the first listed isotopologue all species were observed simultaneously in the presence of an intense spectral impurity (pyridine), which complicated assignment. This work is part of the FORCOMS project, funded by the French National Research Agency (ANR) that concerns the Formation of Complex Organic Molecules (COMs) in Space. The goal of the project is to better understand the formation of these COMs during the earliest phases of star formation. Glycoaldehyde, a sugar-related interstellar prebiotic molecule has been detected in two star-forming regions, Sgr B2(N) (1,2) and G31.41+0.31(3). A significant overabundance of deuterated species has been observed in protostellar environments. Formation of glycoaldehyde is suspected to involve photodissociation driven ice chemistry. One of the objectives of FORCOMS is to test if a comparison of the abundance of deuterated and non-deuterated COMs can be used to trace complex organic chemistry in interstellar environments. Previous laboratory work on the D-isotopologues was restricted to less than 26 GHz (4). We hence carried out new measurements and analysis to obtain a complete set of predictions for radioastronomy. The previous measurements greatly helped in assigning the spectra. Simulations with CASSIS software have been made to select the best candidates for detection and a telescope proposal is under way.

  20. Laboratory Analysis of Silicate Stardust Grains of Diverse Stellar Origins

    Science.gov (United States)

    Nguyen, Ann N.; Keller, Lindsay P.; Nakamura-Messenger, Keiko

    2016-01-01

    Silicate dust is ubiquitous in a multitude of environments across the cosmos, including evolved oxygen-rich stars, interstellar space, protoplanetary disks, comets, and asteroids. The identification of bona fide silicate stardust grains in meteorites, interplanetary dust particles, micrometeorites, and dust returned from comet Wild 2 by the Stardust spacecraft has revolutionized the study of stars, interstellar space, and the history of dust in the Galaxy. These stardust grains have exotic isotopic compositions that are records of nucleosynthetic processes that occurred in the depths of their now extinct parent stars. Moreover, the chemical compositions and mineralogies of silicate stardust are consequences of the physical and chemical nature of the stellar condensation environment, as well as secondary alteration processes that can occur in interstellar space, the solar nebula, and on the asteroid or comet parent body in which they were incorporated. In this talk I will discuss our use of advanced nano-scale instrumentation in the laboratory to conduct coordinated isotopic, chemical, and mineralogical analyses of silicate stardust grains from AGB stars, supernovae, and novae. By analyzing the isotopic compositions of multiple elements in individual grains, we have been able to constrain their stellar sources, explore stellar nucleosynthetic and mixing processes, and Galactic chemical evolution. Through our mineralogical studies, we have found these presolar silicate grains to have wide-ranging chemical and mineral characteristics. This diversity is the result of primary condensation characteristics and in some cases secondary features imparted by alteration in space and in our Solar System. The laboratory analysis of actual samples of stars directly complements astronomical observations and astrophysical models and offers an unprecedented level of detail into the lifecycles of dust in the Galaxy.

  1. 2002 Wastewater Land Application Site Performance Reports for the Idaho National Engineering and Environmental Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Meachum, T.R.; Lewis, M.G.

    2003-02-20

    The 2002 Wastewater Land Application site Performance Reports for the Idaho National Engineering and Environmental Laboratory describe site conditions for the facilities with State of Idaho Wastewater Land Application Permits. Permit-required monitoring data are summarized, and permit exceedences or environmental impacts relating to the operation of the facilities during the 2002 permit year are discussed.

  2. 2003 Wastewater Land Application Site Performance Reports for the Idaho National Engineering and Environmental Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Teresa R. Meachum

    2004-02-01

    The 2003 Wastewater Land Application Site Performance Reports for the Idaho National Engineering and Environmental Laboratory describe the conditions for the facilities with State of Idaho Wastewater Land Application Permits. Permit-required monitoring data are summarized, and permit exceedences or environmental impacts relating to the operations of the facilities during the 2003 permit year are discussed.

  3. Green Zia Application Sandia National Laboratories' Neutron Generator Production Facility

    International Nuclear Information System (INIS)

    The Green Zia Environmental Excellence Program is a voluntary program designed to support and assist all New Mexico businesses to achieve environmental excellence through continuous improvement and effective energy management. The program encourages integration of environmental excellence into business operations and management practices through the establishment of a prevention-based environmental management system. The Neutron Generator Production Facility has participated in the Green Zia Environmental Excellence Program for two years. This document is the submittal application for inclusion in the 2003 Green Zia program year

  4. High resolution holography - applications at Marchwood Engineering Laboratories

    International Nuclear Information System (INIS)

    With a potential information storage density of 1016bits/m2, the ability to reconstruct in three dimensions, wide angle of view and potentially diffraction limited resolution, holography should be invaluable for optical recording and inspection of complex shape objects. That it has failed to make any significant impact in this field is due to a variety of practical reasons which have limited resolution, quality and reliability of holograms made with pulsed lasers. Some of these limitations are discussed together with possible methods of overcoming them. In line (Gabor) and side-band systems are discussed. The application to CEGB nuclear power stations is described and preliminary results presented. (author)

  5. The uncertainty in physical measurements an introduction to data analysis in the physics laboratory

    CERN Document Server

    Fornasini, Paolo

    2008-01-01

    All measurements of physical quantities are affected by uncertainty. Understanding the origin of uncertainty, evaluating its extent and suitably taking it into account in data analysis is essential for assessing the degree of accuracy of phenomenological relationships and physical laws in both scientific research and technological applications. The Uncertainty in Physical Measurements: An Introduction to Data Analysis in the Physics Laboratory presents an introduction to uncertainty and to some of the most common procedures of data analysis. This book will serve the reader well by filling the gap between tutorial textbooks and highly specialized monographs. The book is divided into three parts. The first part is a phenomenological introduction to measurement and uncertainty: properties of instruments, different causes and corresponding expressions of uncertainty, histograms and distributions, and unified expression of uncertainty. The second part contains an introduction to probability theory, random variable...

  6. Mechanical Design of Hybrid Densitometer for Laboratory Applications

    Energy Technology Data Exchange (ETDEWEB)

    G. Walton; P. J. Polk; S. -T. Hsue

    1999-01-01

    The hybrid K-edge densitometry (KED) and x-ray fluorescence (XRF) densitometer is a unique nondestructive assay (NDA) technique to determine the concentrations of nuclear material (SNM) in solutions. The technique is ideally suited to assay the dissolver solutions as well as the uranium and plutonium product solutions from reprocessing It is an important instrument for safeguarding reprocessing; it is also a useful tool in analytical laboratories because of its capability of analyzing mixed solutions of SNM without chemical separation. Figure 1 shows the hardware of an hybrid system developed at Los Alamos. The hybrid densitometer employs a combination of two complimentary techniques: absorption KED and XRF. The KED technique measures the transmission of a tightly collimated photon beam through the sample; it is therefore quite insensitive to the radiation emitted by the sample material. Fission product level of {approximately}1 Ci/mL can be tolerated. The technique is insensitive to matrix variation. XRF measures the fluorescent x-rays from the same sample and can be used to determine the ratios of SNM. The technique can be applied to thorium, uranium, neptunium, plutonium, and americium concentration determination. The technique can also be applied to mixed solutions found in nuclear fuel cycle without separation: thorium-uranium, uranium-plutoniun neptunium-plutonium-americium. The design of the hybrid densitometer is shown schematically in Figs. 1 and 2; Fig. 1 shows the top view; Fig. 2 shows the side view. The heart of the design is the changer. The sample changer can accommodate a sample tray, which holds up to six samples. The samples can be a 2-cm path length cell, 4-cm path length cell, or a mixture of both sizes. The sample tray is controlled by a "Compumotor" which in turn is controlled by a computer. The absolute position of the sample cell can be reproduced to a standard deviation of 0.02 mm. The sample changer is housed inside square stainless steel

  7. 2001 Wastewater Land Application Site Performance Reports for the Idaho National Engineering and Environmental Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Meachum, T.R.; Lewis, M.G.

    2002-02-15

    The 2001 Wastewater Land Application Site Performance Reports for the Idaho National Engineering and Environmental Laboratory describe site conditions for the facilities with State of Idaho Wastewater Land Application Permits. Permit-required monitoring data are summarized, and any permit exceedences or environmental impacts relating to the operation of any of the facilities during the 2001 permit year are discussed. Additionally, any special studies performed at the facilities, which related to the operation of the facility or application of the wastewater, are discussed.

  8. 2001 Wastewater Land Application Site Performance Reports for the Idaho National Engineering and Environmental Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Meachum, Teresa Ray; Lewis, Michael George

    2002-02-01

    The 2001 Wastewater Land Application Site Performance Reports for the Idaho National Engineering and Environmental Laboratory describe site conditions for the facilities with State of Idaho Wastewater Land Application Permits. Permit-required monitoring data are summarized, and any permit exceedences or environmental impacts relating to the operation of any of the facilities during the 2001 permit year are discussed. Additionally, any special studies performed at the facilities, which related to the operation of the facility or application of the wastewater, are discussed.

  9. Analysis methods for photovoltaic applications

    Energy Technology Data Exchange (ETDEWEB)

    None

    1980-01-01

    Because photovoltaic power systems are being considered for an ever-widening range of applications, it is appropriate for system designers to have knowledge of and access to photovoltaic power systems simulation models and design tools. This brochure gives brief descriptions of a variety of such aids and was compiled after surveying both manufacturers and researchers. Services available through photovoltaic module manufacturers are outlined, and computer codes for systems analysis are briefly described. (WHK)

  10. Functional analysis theory and applications

    CERN Document Server

    Edwards, RE

    2011-01-01

    ""The book contains an enormous amount of information - mathematical, bibliographical and historical - interwoven with some outstanding heuristic discussions."" - Mathematical Reviews.In this massive graduate-level study, Emeritus Professor Edwards (Australian National University, Canberra) presents a balanced account of both the abstract theory and the applications of linear functional analysis. Written for readers with a basic knowledge of set theory, general topology, and vector spaces, the book includes an abundance of carefully chosen illustrative examples and excellent exercises at the

  11. Industrial applications of neutron activation analysis

    International Nuclear Information System (INIS)

    Neutron activation analysis has been widely used in the industry and over the years played a key role in the development of manufacturing process as well as monitoring of the process flow. In this context NAA has been utilized both in R and D, and in the factory as a flexible analytical tool. It has been used successfully in numerous industries including broad categories such as Chemical, Pharmaceutical, Mining, Photographic, Oil and Gas, Automobile, Defense, Semiconductor and Electronic industries. Dow Chemical owns and operates a research reactor for analytical measurements of samples generated in both R and D, and manufacturing area in its plant in Midland, Michigan. Although most industries do not have reactors on their campus but use an off site reactor regularly, and often have in-house neutron sources such as a 252Cf used primarily for NAA. In most industrial materials analysis laboratory NAA is part of a number of analytical techniques such as ICP-MS, AA, SIMS, FTIR, XRF, TXRF etc. Analysis of complex industrial samples may require data from each of these methods to provide a clear picture of the materials issues involved. With the improvement of classical analytical techniques, and the introduction of new techniques, e.g. TXRF, the role of NAA continues to be a key bench mark technique that provides accurate and reliable data. The strength of the NAA in bulk analysis is balanced by its weakness in providing surface sensitive or spatially resolved analysis as is required by many applications. (author)

  12. Enhancing genomic laboratory reports: A qualitative analysis of provider review

    Science.gov (United States)

    Rahm, Alanna Kulchak; Stuckey, Heather; Green, Jamie; Feldman, Lynn; Zallen, Doris T.; Bonhag, Michele; Segal, Michael M.; Fan, Audrey L.; Williams, Marc S.

    2016-01-01

    This study reports on the responses of physicians who reviewed provider and patient versions of a genomic laboratory report designed to communicate results of whole genome sequencing. Semi‐structured interviews addressed concept communication, elements, and format of example genome reports. Analysis of the coded transcripts resulted in recognition of three constructs around communication of genome sequencing results: (1) Providers agreed that whole genomic sequencing results are complex and they welcomed a report that provided supportive interpretation information to accompany sequencing results; (2) Providers strongly endorsed a report that included active clinical guidance, such as reference to practice guidelines, if available; and (3) Providers valued the genomic report as a resource that would serve as the basis to facilitate communication of genome sequencing results with their patients and families. Providers valued both versions of the report, though they affirmed the need for a provider‐oriented report. Critical elements of the report included clear language to explain the result, as well as consolidated yet comprehensive prognostic information with clear guidance over time for the clinical care of the patient. Most importantly, it appears a report with this design has the potential not only to return results but also serves as a communication tool to help providers and patients discuss and coordinate care over time. © 2016 The Authors. American Journal of Medical Genetics Part A published by Wiley Periodicals, Inc. PMID:26842872

  13. Color Maintenance of LEDs in Laboratory and Field Applications

    Energy Technology Data Exchange (ETDEWEB)

    Royer, Michael P.; Tuttle, Ralph; Rosenfeld, Scott M.; Miller, Naomi J.

    2013-09-30

    Synopsis: To date, consideration for parametric failure of LED products has largely been focused on lumen maintenance. However, color shift is a cause of early failure for some products, and is especially important to consider in certain applications, like museums, where visual appearance is critical. Example data collected by the GATEWAY program for LED lamps installed in museums shows that many have changed color beyond a reasonable tolerance well before their rated lifetime was reached, necessitating replacement. Similar data collected by the CALiPER program between 2008 and 2010 reveals that many early products shifted beyond acceptable tolerances in as little as a few thousand hours. In contrast, data from the L Prize program illustrates that commercially available LED products can have exemplary color stability that is unmatched by traditional light sources. Beyond presenting data from the aforementioned DOE programs, this report discusses the metrics used for communicating color shift—namely MacAdam ellipses and Δu'v'—as well as providing guidance for end users on how to monitor color shift and what to look for in manufacturer warranties. Also included are descriptions of the physical changes that have been documented as leading to color shift in some example types of LED packages. As with complete products, the data presented herein for LED packages shows that a wide variety of products are available; in order for specifiers and consumers to make educated choices, more detailed and standardized information should be made available.

  14. 7 CFR 91.37 - Standard hourly fee rate for laboratory testing, analysis, and other services.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 3 2010-01-01 2010-01-01 false Standard hourly fee rate for laboratory testing... Charges § 91.37 Standard hourly fee rate for laboratory testing, analysis, and other services. (a) The standard hourly fee rate in this section for the individual laboratory analyses cover the costs of...

  15. Isotopic methods in hydrogeology and their application to the Underground Research Laboratory, Manitoba

    International Nuclear Information System (INIS)

    This review examines isotopic methods used to determine groundwater sources, residence times and processes of geochemical evolution that have been published in the international literature, with specific reference to AECL's experience in these methods and applications to groundwaters at the Underground Research Laboratory (URL), Manitoba. The program of groundwater sampling and analysis currently being planned for the URL area over the next several years will concentrate on specific isotopic measurements that may assist in understanding the groundwater flow system at the URL site. These results will add to the existing data for the URL area and indicate which isotopes are most useful when applied to the known groundwater flow system of the URL. This program of study is especially important because it not only uses standard geochemical and isotopic measurements (e.g., major ion, trace elements, 2H/18O, 14C, 34S) of groundwaters, but will determine values of more exotic and unusual ratios, such as 6Li/7Li, and B11/B10, whose potential for understanding groundwater geochemical evolution is largely unknown at present. In addition, the more established but equally complex methods of isotopic analysis, to determine 3He/4He, 36Cl/Cl and 129I/I, will be used to assess their potential for adding to the hydrogeochemical understanding of flow paths in crystalline rock. (author). 182 refs., 11 tabs., 27 figs

  16. Final Safety Analysis Document for Building 693 Chemical Waste Storage Building at Lawrence Livermore National Laboratory

    International Nuclear Information System (INIS)

    This Safety Analysis Document (SAD) for the Lawrence Livermore National Laboratory (LLNL) Building 693, Chemical Waste Storage Building (desipated as Building 693 Container Storage Unit in the Laboratory's RCRA Part B permit application), provides the necessary information and analyses to conclude that Building 693 can be operated at low risk without unduly endangering the safety of the building operating personnel or adversely affecting the public or the environment. This Building 693 SAD consists of eight sections and supporting appendices. Section 1 presents a summary of the facility designs and operations and Section 2 summarizes the safety analysis method and results. Section 3 describes the site, the facility desip, operations and management structure. Sections 4 and 5 present the safety analysis and operational safety requirements (OSRs). Section 6 reviews Hazardous Waste Management's (HWM) Quality Assurance (QA) program. Section 7 lists the references and background material used in the preparation of this report Section 8 lists acronyms, abbreviations and symbols. Appendices contain supporting analyses, definitions, and descriptions that are referenced in the body of this report

  17. Analysis of ISO/IEC 17025 for establishment of KOLAS (Korea Laboratory Accreditation Scheme) quality assurance system

    International Nuclear Information System (INIS)

    Besides one existent accredited lab, radioactive material chemical analysis lab, five test laboratories and two calibration labs are under plan to acquire the accreditation from KOLAS. But the current Quality Manual was developed according to ISO Guide 25 that was superceded by ISO/IEC 17025. Since it is tailored to the radioactive material chemical analysis lab, a number of requirements of the Manual are not applicable to the labs other than radioactive material chemical analysis lab. Through the analysis of ISO/IEC 17025, a model of quality system was established which is not only consistent with ISO/IEC 17025 but reflective of the KAERI's situation

  18. Analysis of ISO/IEC 17025 for establishment of KOLAS (Korea Laboratory Accreditation Scheme) quality assurance system

    Energy Technology Data Exchange (ETDEWEB)

    Nam, Ji Hee

    2000-12-01

    Besides one existent accredited lab, radioactive material chemical analysis lab, five test laboratories and two calibration labs are under plan to acquire the accreditation from KOLAS. But the current Quality Manual was developed according to ISO Guide 25 that was superceded by ISO/IEC 17025. Since it is tailored to the radioactive material chemical analysis lab, a number of requirements of the Manual are not applicable to the labs other than radioactive material chemical analysis lab. Through the analysis of ISO/IEC 17025, a model of quality system was established which is not only consistent with ISO/IEC 17025 but reflective of the KAERI's situation.

  19. Laboratory and Airborne BRDF Analysis of Vegetation Leaves and Soil Samples

    Science.gov (United States)

    Georgiev, Georgi T.; Gatebe, Charles K.; Butler, James J.; King, Michael D.

    2008-01-01

    Laboratory-based Bidirectional Reflectance Distribution Function (BRDF) analysis of vegetation leaves, soil, and leaf litter samples is presented. The leaf litter and soil samples, numbered 1 and 2, were obtained from a site located in the savanna biome of South Africa (Skukuza: 25.0degS, 31.5degE). A third soil sample, number 3, was obtained from Etosha Pan, Namibia (19.20degS, 15.93degE, alt. 1100 m). In addition, BRDF of local fresh and dry leaves from tulip tree (Liriodendron tulipifera) and acacia tree (Acacia greggii) were studied. It is shown how the BRDF depends on the incident and scatter angles, sample size (i.e. crushed versus whole leaf,) soil samples fraction size, sample status (i.e. fresh versus dry leaves), vegetation species (poplar versus acacia), and vegetation s biochemical composition. As a demonstration of the application of the results of this study, airborne BRDF measurements acquired with NASA's Cloud Absorption Radiometer (CAR) over the same general site where the soil and leaf litter samples were obtained are compared to the laboratory results. Good agreement between laboratory and airborne measured BRDF is reported.

  20. NeuroScholar’s Electronic Laboratory Notebook and Its Application to Neuroendocrinology

    OpenAIRE

    Khan, Arshad M.; Hahn, Joel D.; Cheng, Wei-Cheng; Watts, Alan G.; Burns, Gully A. P. C

    2006-01-01

    Scientists continually relate information from the published literature to their current research. The challenge of this essential and time-consuming activity increases as the body of scientific literature continues to grow. In an attempt to lessen the challenge, we have developed an Electronic Laboratory Notebook (ELN) application. Our ELN functions as a component of another application we have developed, an open-source knowledge management system for the neuroscientific literature called Ne...

  1. The Application of System Dynamics to the Integration of National Laboratory Research and K-12 Education

    Energy Technology Data Exchange (ETDEWEB)

    Mills, James Ignatius; Zounar Harbour, Elda D

    2001-08-01

    The Idaho National Engineering and Environmental Laboratory (INEEL) is dedicated to finding solutions to problems related to the environment, energy, economic competitiveness, and national security. In an effort to attract and retain the expertise needed to accomplish these challenges, the INEEL is developing a program of broad educational opportunities that makes continuing education readily available to all laboratory employees, beginning in the K–12 environment and progressing through post-graduate education and beyond. One of the most innovative educational approaches being implemented at the laboratory is the application of STELLA© dynamic learning environments, which facilitate captivating K–12 introductions to the complex energy and environmental challenges faced by global societies. These simulations are integrated into lesson plans developed by teachers in collaboration with INEEL scientists and engineers. This approach results in an enjoyable and involved learning experience, and an especially positive introduction to the application of science to emerging problems of great social and environmental consequence.

  2. The development of computer industry and applications of its relevant techniques in nuclear research laboratories

    International Nuclear Information System (INIS)

    The increasing needs for computers in the area of nuclear science and technology are described. The current status of commerical availabe computer products of different scale in world market are briefly reviewed. A survey of some noticeable techniques is given from the view point of computer applications in nuclear science research laboratories

  3. QUALITY ASSURANCE GUIDELINES FOR LABORATORIES PERFORMING FORENSIC ANALYSIS OF CHEMICAL TERRORISM

    Science.gov (United States)

    The Scientific Working Group on Forensic Analysis of Chemical Terrorism (SWGFACT) has developed the following quality assurance guidelines to provide laboratories engaged in forensic analysis of chemical evidence associated with terrorism a framework to implement a quality assura...

  4. 9 CFR 381.207 - Small importations for consignee's personal use, display, or laboratory analysis.

    Science.gov (United States)

    2010-01-01

    ... personal use, display, or laboratory analysis. 381.207 Section 381.207 Animals and Animal Products FOOD..., display, or laboratory analysis. Any poultry product (other than one which is forbidden entry by other... for sale or distribution; which is sound, healthful, wholesome, and fit for human food, and which...

  5. Analysis of students’ generated questions in laboratory learning environments

    Directory of Open Access Journals (Sweden)

    Juan Antonio Llorens-Molina

    2012-03-01

    Full Text Available In order to attain a reliable laboratory work assessment, we argue taking the Learning Environment as a core concept and a research paradigm that considers the factors affecting the laboratory as a particularly complex educational context. With regard to Laboratory Learning Environments (LLEs, a well known approach is the SLEI (Science Laboratory Environment Inventory. The aim of this research is to design and apply an alternative and qualitative assessment tool to characterize Laboratory Learning Environments in an introductory course of organic chemistry. An alternative and qualitative assessment tool would be useful for providing feed-back for experimental learning improvement; serving as a complementary triangulation tool in educational research on LLEs; and generating meaningful categories in order to design quantitative research instruments. Toward this end, spontaneous questions by students have been chosen as a reliable source of information. To process these questions, a methodology based on the Grounded Theory has been developed to provide a framework for characterizing LLEs. This methodology has been applied in two case studies. The conclusions lead us to argue for using more holistic assessment tools in both everyday practice and research. Likewise, a greater attention should be paid to metacognition to achieve suitable self-perception concerning students’ previous knowledge and manipulative skills.

  6. A new laboratory approach to shale analysis using NMR relaxometry

    Science.gov (United States)

    Washburn, Kathryn E.; Birdwell, Justin E.

    2013-01-01

    Low-field nuclear magnetic resonance (LF-NMR) relaxometry is a non-invasive technique commonly used to assess hydrogen-bearing fluids in petroleum reservoir rocks. Measurements made using LF-NMR provide information on rock porosity, pore-size distributions, and in some cases, fluid types and saturations (Timur, 1967; Kenyon et al., 1986; Straley et al., 1994; Brown, 2001; Jackson, 2001; Kleinberg, 2001; Hurlimann et al., 2002). Recent improvements in LF-NMR instrument electronics have made it possible to apply methods used to measure pore fluids to assess highly viscous and even solid organic phases within reservoir rocks. T1 and T2 relaxation responses behave very differently in solids and liquids; therefore the relationship between these two modes of relaxation can be used to differentiate organic phases in rock samples or to characterize extracted organic materials. Using T1-T2 correlation data, organic components present in shales, such as kerogen and bitumen, can be examined in laboratory relaxometry measurements. In addition, implementation of a solid-echo pulse sequence to refocus T2 relaxation caused by homonuclear dipolar coupling during correlation measurements allows for improved resolution of solid-phase protons. LF-NMR measurements of T1 and T2 relaxation time distributions were carried out on raw oil shale samples from the Eocene Green River Formation and pyrolyzed samples of these shales processed by hydrous pyrolysis and techniques meant to mimic surface and in-situ retorting. Samples processed using the In Situ Simulator approach ranged from bitumen and early oil generation through to depletion of petroleum generating potential. The standard T1-T2 correlation plots revealed distinct peaks representative of solid- and liquid-like organic phases; results on the pyrolyzed shales reflect changes that occurred during thermal processing. The solid-echo T1 and T2 measurements were used to improve assessment of the solid organic phases, specifically

  7. Intervention of hydrogen analysis laboratory for radioactive materials study

    International Nuclear Information System (INIS)

    The objective of the practice was the measurement of the hydrogen concentration on structural material from the Central Nuclear Atucha I (CNA-I) cooling channels using a LECO gas analyser. Original samples were previously separated into fractions at the Laboratiorio para Ensayos de Post-Irradiacion (LAPEP), Centro Atomico Ezeiza. The practice and the preliminary conditions of the laboratory and equipment to reduce the occupational dose for personnel and the work area contamination are described in this paper. In addition to the training activity for workers, the radiological control performed during the intervention and procedure followed to decontaminate LECO and the laboratory are summarized here. (authors)

  8. Fringe analysis for automotive applications

    Science.gov (United States)

    Brown, Gordon M.

    The capabilities of Ford USA's Computer Aided Holometry (CAH) system for stepped phase interferometry are presented. Holographic test equipment and facilities are briefly reviewed. Fringe analysis algorithms and procedures for practical semi-automated processing of stepped phase interferograms of complex real life structures for quantitative measurement of deformation and shape are discussed. Several automative applications illustrating the fringe analysis technique are presented, including: (1) the use of CAH combined with Finite Element Analysis (FEA) methods to study frictional effects of the thermal insertion of a wrist pin into a connecting rod; (2) a study of engine deformation due to hydraulic loading of the cylinders; and (3) the computation of sound pressure from CAH measured vibration amplitude/phase and shape using the Rayleigh integral and SYSNOISE TM methods. In the past, holometry methods have been used primarily for problem solving in structures that were already in production, often where limited opportunities existed to make expensive modifications to existing tooling. Infrequently holometry was used by knowledgeable engineers to develop optimized components in the prototype stage even without the current CAE methods. The opportunity and challenge of our day is to closely couple CAE (FEM, EFA) methods and experimental methods (CAH, modal, etc.) to optimize structural performance in the upstream product development process where necessary tooling modifications can and will be made.

  9. Analysis of accuracy in optical motion capture - A protocol for laboratory setup evaluation.

    Science.gov (United States)

    Eichelberger, Patric; Ferraro, Matteo; Minder, Ursina; Denton, Trevor; Blasimann, Angela; Krause, Fabian; Baur, Heiner

    2016-07-01

    Validity and reliability as scientific quality criteria have to be considered when using optical motion capture (OMC) for research purposes. Literature and standards recommend individual laboratory setup evaluation. However, system characteristics such as trueness, precision and uncertainty are often not addressed in scientific reports on 3D human movement analysis. One reason may be the lack of simple and practical methods for evaluating accuracy parameters of OMC. A protocol was developed for investigating the accuracy of an OMC system (Vicon, volume 5.5×1.2×2.0m(3)) with standard laboratory equipment and by means of trueness and uncertainty of marker distances. The study investigated the effects of number of cameras (6, 8 and 10), measurement height (foot, knee and hip) and movement condition (static and dynamic) on accuracy. Number of cameras, height and movement condition affected system accuracy significantly. For lower body assessment during level walking, the most favorable setting (10 cameras, foot region) revealed mean trueness and uncertainty to be -0.08 and 0.33mm, respectively. Dynamic accuracy cannot be predicted based on static error assessments. Dynamic procedures have to be used instead. The significant influence of the number of cameras and the measurement location suggests that instrumental errors should be evaluated in a laboratory- and task-specific manner. The use of standard laboratory equipment makes the proposed procedure widely applicable and it supports the setup process of OCM by simple functional error assessment. Careful system configuration and thorough measurement process control are needed to produce high-quality data. PMID:27230474

  10. THE ESTABLISHMENT OF LABORATORY GUIDELINES FOR ANALYSIS OF BIOTERRORISM SAMPLES

    Science.gov (United States)

    After the attack on the World Trade Center on September 11, 2002, and the subsequent deaths associated with Bacillus anthracis spore contaminated mail, a worldwide need was apparent for increased laboratory capacity to safely analyze bioterrorism samples. The U.S. Department of ...

  11. E-commerce application study and complementary services in the sector of laboratory diagnostics based on consumers' opinion.

    Science.gov (United States)

    Kontis, Alexios-Patapios; Siassiakos, Konstantinos; Kaimakamis, Georgios; Lazakidou, Athina

    2010-01-01

    The field of the Laboratory Diagnostics (in vitro), a sector of the field of health services, constitutes an industrial market that includes activities of research, development, production and products distribution that are designated for laboratory use. These products are defined as techno-medical products including various categories of products such as simple medicines, advanced technological systems, etc. Despite the high performance, the enlargement and the increasing trends of the field, it is not recorded the expected progress in the methods and the ways of promotion, trading and supporting of these products in the market. The present paper aims at the investigation of the consumers' opinion and the specification of those services that are possible to be implemented in electronic services and commerce for a strongly competitive advantage for the enterprises of the sector. The analysis of the findings from the Consumer Purchase Decision Centres (CPDC) shows how important it is to implement web-based applications in the proposed services. PMID:21041180

  12. E-commerce application study and complementary services in the sector of laboratory diagnostics based on consumers' opinion.

    Science.gov (United States)

    Kontis, Alexios-Patapios; Siassiakos, Konstantinos; Kaimakamis, Georgios; Lazakidou, Athina

    2010-01-01

    The field of the Laboratory Diagnostics (in vitro), a sector of the field of health services, constitutes an industrial market that includes activities of research, development, production and products distribution that are designated for laboratory use. These products are defined as techno-medical products including various categories of products such as simple medicines, advanced technological systems, etc. Despite the high performance, the enlargement and the increasing trends of the field, it is not recorded the expected progress in the methods and the ways of promotion, trading and supporting of these products in the market. The present paper aims at the investigation of the consumers' opinion and the specification of those services that are possible to be implemented in electronic services and commerce for a strongly competitive advantage for the enterprises of the sector. The analysis of the findings from the Consumer Purchase Decision Centres (CPDC) shows how important it is to implement web-based applications in the proposed services.

  13. Supplement analysis for continued operation of Lawrence Livermore National Laboratory and Sandia National Laboratories, Livermore. Volume 2: Comment response document

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    The US Department of Energy (DOE), prepared a draft Supplement Analysis (SA) for Continued Operation of Lawrence Livermore National Laboratory (LLNL) and Sandia National Laboratories, Livermore (SNL-L), in accordance with DOE`s requirements for implementation of the National Environmental Policy Act of 1969 (NEPA) (10 Code of Federal Regulations [CFR] Part 1021.314). It considers whether the Final Environmental Impact Statement and Environmental Impact Report for Continued Operation of Lawrence Livermore National Laboratory and Sandia National Laboratories, Livermore (1992 EIS/EIR) should be supplement3ed, whether a new environmental impact statement (EIS) should be prepared, or no further NEPA documentation is required. The SA examines the current project and program plans and proposals for LLNL and SNL-L, operations to identify new or modified projects or operations or new information for the period from 1998 to 2002 that was not considered in the 1992 EIS/EIR. When such changes, modifications, and information are identified, they are examined to determine whether they could be considered substantial or significant in reference to the 1992 proposed action and the 1993 Record of Decision (ROD). DOE released the draft SA to the public to obtain stakeholder comments and to consider those comments in the preparation of the final SA. DOE distributed copies of the draft SA to those who were known to have an interest in LLNL or SNL-L activities in addition to those who requested a copy. In response to comments received, DOE prepared this Comment Response Document.

  14. Bacterial Analysis by MALDI-TOF Mass Spectrometry: An Inter-laboratory Comparison

    Energy Technology Data Exchange (ETDEWEB)

    Wunschel, Sharon C.; Jarman, Kristin H.; Petersen, Catherine E.; Valentine, Nancy B.; Wahl, Karen L.; Schauki, Dunja; Jackman, Joany; Nelson, Chad P.; White, Edward

    2005-04-01

    Bacterial analysis by matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry has been demonstrated in numerous laboratories, and a few attempts to compare results from different laboratories of the same organism have been made. However, it has been difficult to resolve the spectral differences between laboratories when different instruments, matrices, solvents, etc. are used. In order to establish this technique as a useful tool for bacterial identification, additional efforts in standardizing the methods by which MALDI mass spectra are obtained and comparisons of spectra from different instruments with different operators are needed. Presented here is an extension of our previous single-laboratory reproducibility study with three different laboratories in a controlled experiment with aliquots of the same bacterial culture, matrix stock solution, and calibrant standards. Using automated spectral collection of whole cell bacteria and automated data processing and analysis algorithms, fingerprints from three different laboratories were constructed and compared. Nine of the ions appeared reproducibly within all three laboratories, with additional unique ions observed within each of the laboratories. An initial evaluation of the ability to use a fingerprint generated within one laboratory for bacterial identification of a sample from another laboratory is presented, and strategies for improving identification rates between laboratories is discussed.

  15. Film analysis systems and applications

    Energy Technology Data Exchange (ETDEWEB)

    Yonekura, Y.; Brill, A.B.

    1981-01-01

    The different components that can be used in modern film analysis systems are reviewed. TV camera and charge-coupled device sensors coupled to computers provide low cost systems for applications such as those described. The autoradiography (ARG) method provides an important tool for medical research and is especially useful for the development of new radiopharmaceutical compounds. Biodistribution information is needed for estimation of radiation dose, and for interpretation of the significance of observed patterns. The need for such precise information is heightened when one seeks to elucidate physiological principles/factors in normal and experimental models of disease. The poor spatial resolution achieved with current PET-imaging systems limits the information on radioreceptor mapping, neutrotransmitter, and neuroleptic drug distribution that can be achieved from patient studies. The artful use of ARG in carefully-controlled animal studies will be required to provide the additional information needed to fully understand results obtained with this new important research tool. (ERB)

  16. Film analysis systems and applications

    International Nuclear Information System (INIS)

    The different components that can be used in modern film analysis systems are reviewed. TV camera and charge-coupled device sensors coupled to computers provide low cost systems for applications such as those described. The autoradiography (ARG) method provides an important tool for medical research and is especially useful for the development of new radiopharmaceutical compounds. Biodistribution information is needed for estimation of radiation dose, and for interpretation of the significance of observed patterns. The need for such precise information is heightened when one seeks to elucidate physiological principles/factors in normal and experimental models of disease. The poor spatial resolution achieved with current PET-imaging systems limits the information on radioreceptor mapping, neutrotransmitter, and neuroleptic drug distribution that can be achieved from patient studies. The artful use of ARG in carefully-controlled animal studies will be required to provide the additional information needed to fully understand results obtained with this new important research tool

  17. Implementation of Time and Frequency Response Analysis for Web-Based Laboratories

    Directory of Open Access Journals (Sweden)

    Teyana Sapula

    2011-04-01

    Full Text Available The University of Dar Es Salaam has developed the web-based laboratory for Time and Frequency Response Analysis. The purpose of this web-based laboratory is the utilization of real data from real experiments, in terms of instrumentation and experimental circuits, rather than simulations. The use of webbased laboratory came after realizing the difficulties imposed by the traditional laboratories. Web-based laboratories allow students and educators to interact with real laboratory equipment located anywhere in the world at anytime. This paper presents the implementation of web-based laboratory of single stage common emitter, resistor capacitor coupled amplifier using National Instruments Educational Laboratory Virtual Instrument Suite platform. Two components are deployed: time response analysis and frequency response analysis. The experiment allows students to carryout time and frequency analysis of the amplifier. The modular can be used to any microelectronic circuits to carry out any time response and frequency response analysis. Both the time response and frequency response analysis results of the amplifier are validated.

  18. The long and winding road from the research laboratory to industrial applications of lactic acid bacteria.

    Science.gov (United States)

    Pedersen, Martin Bastian; Iversen, Stig Lykke; Sørensen, Kim Ib; Johansen, Eric

    2005-08-01

    Research innovations are constantly occurring in universities, research institutions and industrial research laboratories. These are reported in the scientific literature and presented to the scientific community in various congresses and symposia as well as through direct contacts and collaborations. Conversion of these research results to industrially useful innovations is, however, considerably more complex than generally appreciated. The long and winding road from the research laboratory to industrial applications will be illustrated with two recent examples from Chr. Hansen A/S: the implementation in industrial scale of a new production technology based on respiration by Lactococcus lactis and the introduction to the market of L. lactis strains constructed using recombinant DNA technology.

  19. An analysis of microsystems development at Sandia National Laboratories

    Science.gov (United States)

    Herrera, Gilbert V.; Myers, David R.

    2011-06-01

    While Sandia initially was motivated to investigate emergent microsystem technology to miniaturize existing macroscale structures, present designs embody innovative approaches that directly exploit the fundamentally different material properties of a new technology at the micro- and nano-scale. Direct, hands-on experience with the emerging technology gave Sandia engineers insights that not only guided the evolution of the technology but also enabled them to address new applications that enlarged the customer base for the new technology. Sandia's early commitment to develop complex microsystems demonstrated the advantages that early adopters gain by developing an extensive design and process tool kit and a shared awareness of multiple approaches to achieve the multiple goals. As with any emergent technology, Sandia's program benefited from interactions with the larger technical community. However, custom development followed a spiral path of direct trial-and-error experience, analysis, quantification of materials properties at the micro- and nano-scale, evolution of design tools and process recipes, and an understanding of reliability factors and failure mechanisms even in extreme environments. The microsystems capability at Sandia relied on three key elements. The first was people: a mix of mechanical and semiconductor engineers, chemists, physical scientists, designers, and numerical analysts. The second was a unique facility that enabled the development of custom technologies without contaminating mainline product deliveries. The third was the arrival of specialized equipment as part of a Cooperative Research And Development Agreement (CRADA) enabled by the National Competitiveness Technology Transfer Act of 1989. Underpinning all these, the program was guided and sustained through the research and development phases by accomplishing intermediate milestones addressing direct mission needs.

  20. Idaho National Engineering Laboratory (INEL) Environmental Restoration (ER) Program Baseline Safety Analysis File (BSAF)

    International Nuclear Information System (INIS)

    The Baseline Safety Analysis File (BSAF) is a facility safety reference document for the Idaho National Engineering Laboratory (INEL) environmental restoration activities. The BSAF contains information and guidance for safety analysis documentation required by the U.S. Department of Energy (DOE) for environmental restoration (ER) activities, including: Characterization of potentially contaminated sites. Remedial investigations to identify and remedial actions to clean up existing and potential releases from inactive waste sites Decontamination and dismantlement of surplus facilities. The information is INEL-specific and is in the format required by DOE-EM-STD-3009-94, Preparation Guide for U.S. Department of Energy Nonreactor Nuclear Facility Safety Analysis Reports. An author of safety analysis documentation need only write information concerning that activity and refer to BSAF for further information or copy applicable chapters and sections. The information and guidance provided are suitable for: sm-bullet Nuclear facilities (DOE Order 5480-23, Nuclear Safety Analysis Reports) with hazards that meet the Category 3 threshold (DOE-STD-1027-92, Hazard Categorization and Accident Analysis Techniques for Compliance with DOE Order 5480.23, Nuclear Safety Analysis Reports) sm-bullet Radiological facilities (DOE-EM-STD-5502-94, Hazard Baseline Documentation) Nonnuclear facilities (DOE-EM-STD-5502-94) that are classified as open-quotes lowclose quotes hazard facilities (DOE Order 5481.1B, Safety Analysis and Review System). Additionally, the BSAF could be used as an information source for Health and Safety Plans and for Safety Analysis Reports (SARs) for nuclear facilities with hazards equal to or greater than the Category 2 thresholds, or for nonnuclear facilities with open-quotes moderateclose quotes or open-quotes highclose quotes hazard classifications

  1. Idaho National Engineering Laboratory (INEL) Environmental Restoration (ER) Program Baseline Safety Analysis File (BSAF)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-09-01

    The Baseline Safety Analysis File (BSAF) is a facility safety reference document for the Idaho National Engineering Laboratory (INEL) environmental restoration activities. The BSAF contains information and guidance for safety analysis documentation required by the U.S. Department of Energy (DOE) for environmental restoration (ER) activities, including: Characterization of potentially contaminated sites. Remedial investigations to identify and remedial actions to clean up existing and potential releases from inactive waste sites Decontamination and dismantlement of surplus facilities. The information is INEL-specific and is in the format required by DOE-EM-STD-3009-94, Preparation Guide for U.S. Department of Energy Nonreactor Nuclear Facility Safety Analysis Reports. An author of safety analysis documentation need only write information concerning that activity and refer to BSAF for further information or copy applicable chapters and sections. The information and guidance provided are suitable for: {sm_bullet} Nuclear facilities (DOE Order 5480-23, Nuclear Safety Analysis Reports) with hazards that meet the Category 3 threshold (DOE-STD-1027-92, Hazard Categorization and Accident Analysis Techniques for Compliance with DOE Order 5480.23, Nuclear Safety Analysis Reports) {sm_bullet} Radiological facilities (DOE-EM-STD-5502-94, Hazard Baseline Documentation) Nonnuclear facilities (DOE-EM-STD-5502-94) that are classified as {open_quotes}low{close_quotes} hazard facilities (DOE Order 5481.1B, Safety Analysis and Review System). Additionally, the BSAF could be used as an information source for Health and Safety Plans and for Safety Analysis Reports (SARs) for nuclear facilities with hazards equal to or greater than the Category 2 thresholds, or for nonnuclear facilities with {open_quotes}moderate{close_quotes} or {open_quotes}high{close_quotes} hazard classifications.

  2. Review of geographic processing techniques applicable to regional analysis

    Energy Technology Data Exchange (ETDEWEB)

    Durfee, R.C.

    1988-02-01

    Since the early 1970s regional environmental studies have been carried out at the Oak Ridge National Laboratory using computer-assisted techniques. This paper presents an overview of some of these past experiences and the capabilities developed at the Laboratory for processing, analyzing, and displaying geographic data. A variety of technologies have resulted such as computer cartography, image processing, spatial modeling, computer graphics, data base management, and geographic information systems. These tools have been used in a wide range of spatial applications involving facility siting, transportation routing, coal resource analysis, environmental impacts, terrain modeling, inventory development, demographic studies, water resource analyses, etc. The report discusses a number of topics dealing with geographic data bases and structures, software and processing techniques, hardware systems, models and analysis tools, data acquisition techniques, and graphical display methods. Numerous results from many different applications are shown to aid the reader interested in using geographic information systems for environmental analyses. 15 refs., 64 figs., 2 tabs.

  3. Applicability of laboratory data to large scale tests under dynamic loading conditions

    International Nuclear Information System (INIS)

    The analysis of dynamic loading and subsequent fracture must be based on reliable data for loading and deformation history. This paper describes an investigation to examine the applicability of parameters which are determined by means of small-scale laboratory tests to large-scale tests. The following steps were carried out: (1) Determination of crack initiation by means of strain gauges applied in the crack tip field of compact tension specimens. (2) Determination of dynamic crack resistance curves of CT-specimens using a modified key-curve technique. The key curves are determined by dynamic finite element analyses. (3) Determination of strain-rate-dependent stress-strain relationships for the finite element simulation of small-scale and large-scale tests. (4) Analysis of the loading history for small-scale tests with the aid of experimental data and finite element calculations. (5) Testing of dynamically loaded tensile specimens taken as strips from ferritic steel pipes with a thickness of 13 mm resp. 18 mm. The strips contained slits and surface cracks. (6) Fracture mechanics analyses of the above mentioned tests and of wide plate tests. The wide plates (960x608x40 mm3) had been tested in a propellant-driven 12 MN dynamic testing facility. For calculating the fracture mechanics parameters of both tests, a dynamic finite element simulation considering the dynamic material behaviour was employed. The finite element analyses showed a good agreement with the simulated tests. This prerequisite allowed to gain critical J-integral values. Generally the results of the large-scale tests were conservative. 19 refs., 20 figs., 4 tabs

  4. Application of dispersion analysis for determining classifying separation size

    OpenAIRE

    Golomeova, Mirjana; Golomeov, Blagoj; Krstev, Boris; Zendelska, Afrodita; Krstev, Aleksandar

    2009-01-01

    The paper presents the procedure of mathematical modelling the cut point of copper ore classifying by laboratory hydrocyclone. The application of dispersion analysis and planning with Latin square makes possible significant reduction the number of tests. Tests were carried out by D-100 mm hydrocyclone. Variable parameters are as follows: content of solid in pulp, underflow diameter, overflow diameter and inlet pressure. The cut point is determined by partition curve. The obtained mathemat...

  5. Accuracy of gas analysis in lung function laboratories.

    OpenAIRE

    Chinn, D.J.; Naruse, Y; Cotes, J E

    1986-01-01

    Fifty lung function laboratories in England and Wales analysed test gas mixtures of carbon monoxide and helium. Most of them also analysed mixtures of oxygen and carbon dioxide in nitrogen. The percentage accuracy of the results was within 1% of the expected value in only 14% of determinations of carbon monoxide concentration, 28% for carbon dioxide, 37% for helium, and 48% for oxygen. The accuracy of ratios of two concentrations of helium and carbon monoxide was better than that of the indiv...

  6. Pre-Service Science Teachers' Views on Laboratory Applications in Science Education: The Effect of a Two-Semester Course

    Science.gov (United States)

    Harman, Gonca; Cokelez, Aytekin; Dal, Burckin; Alper, Umut

    2016-01-01

    The aim of this study was to examine pre-service science teachers' views about laboratory applications in science education and how their views changed through laboratory applications that were carried out for two semesters. 63 (52 females, 11 males) pre-service teachers participated in the study. The study was carried out by using pre-test and…

  7. Risk assessment and optimization (ALARA) analysis for the environmental remediation of Brookhaven National Laboratory`s hazardous waste management facility

    Energy Technology Data Exchange (ETDEWEB)

    Dionne, B.J.; Morris, S.C. III; Baum, J.W. [and others

    1998-01-01

    The Department of Energy`s (DOE) Office of Environment, Safety, and Health (EH) sought examples of risk-based approaches to environmental restoration to include in their guidance for DOE nuclear facilities. Extensive measurements of radiological contamination in soil and ground water have been made at Brookhaven National Laboratory`s Hazardous Waste Management Facility (HWMF) as part of a Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) remediation process. This provided an ideal opportunity for a case study. This report provides a risk assessment and an {open_quotes}As Low as Reasonably Achievable{close_quotes} (ALARA) analysis for use at other DOE nuclear facilities as an example of a risk-based decision technique. This document contains the Appendices for the report.

  8. Risk assessment and optimization (ALARA) analysis for the environmental remediation of Brookhaven National Laboratory`s hazardous waste management facility

    Energy Technology Data Exchange (ETDEWEB)

    Dionne, B.J.; Morris, S. III; Baum, J.W. [and others

    1998-03-01

    The Department of Energy`s (DOE) Office of Environment, Safety, and Health (EH) sought examples of risk-based approaches to environmental restoration to include in their guidance for DOE nuclear facilities. Extensive measurements of radiological contamination in soil and ground water have been made at Brookhaven National Laboratory`s Hazardous Waste Management Facility (HWMF) as part of a Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) remediation process. This provided an ideal opportunity for a case study. This report provides a risk assessment and an {open_quotes}As Low as Reasonably Achievable{close_quotes} (ALARA) analysis for use at other DOE nuclear facilities as an example of a risk-based decision technique.

  9. Remote laboratories and methods of their application in the study process

    International Nuclear Information System (INIS)

    Nowadays the development of distant learning methods has become one of the most advanced educational trends. Distance learning methods can be seen in their various applications in almost every educational sphere. Remote control and distance learning techniques are also of high demand in technical specialities, with the automatic control engineering field being no exception. Problems of technical realization of remote laboratories are to be considered together with the quality assessment of acquired knowledge. Obviously, such an object as the remote laboratory has to be considered from two perspectives: it is an engineering object in terms of its realization, and at the same time it is a purely scientific tool to assess the quality of education. Key words: distance learning, remote laboratory, automated systems, effectiveness of knowledge

  10. Assessment of Application Technology of Natural User Interfaces in the Creation of a Virtual Chemical Laboratory

    Science.gov (United States)

    Jagodziński, Piotr; Wolski, Robert

    2015-02-01

    Natural User Interfaces (NUI) are now widely used in electronic devices such as smartphones, tablets and gaming consoles. We have tried to apply this technology in the teaching of chemistry in middle school and high school. A virtual chemical laboratory was developed in which students can simulate the performance of laboratory activities similar to those that they perform in a real laboratory. Kinect sensor was used for the detection and analysis of the student's hand movements, which is an example of NUI. The studies conducted found the effectiveness of educational virtual laboratory. The extent to which the use of a teaching aid increased the students' progress in learning chemistry was examined. The results indicate that the use of NUI creates opportunities to both enhance and improve the quality of the chemistry education. Working in a virtual laboratory using the Kinect interface results in greater emotional involvement and an increased sense of self-efficacy in the laboratory work among students. As a consequence, students are getting higher marks and are more interested in the subject of chemistry.

  11. The radioanalytical laboratory at Pelindaba. Some applications for environmental and health monitoring.

    Science.gov (United States)

    Fouché, F J; Faanhof, A

    1994-01-01

    This article deals with the radioanalytical work performed at Pelindaba, Atomic Energy Corporation of South Africa. It reports on the activities of a commercial laboratory, employing analytical techniques, such as total alpha/beta counting, alpha spectrometry, liquid scintillation counting, gamma spectrometry, and neutron activation analysis. Techniques discussed in more detail include semicyclic activation analysis for the determination of fluorine in vitamin mixes, as well as the determination of uranium and radium in urine samples for personnel monitoring.

  12. Handbook of Fourier analysis & its applications

    CERN Document Server

    Marks, Robert J

    2009-01-01

    Fourier analysis has many scientific applications - in physics, number theory, combinatorics, signal processing, probability theory, statistics, option pricing, cryptography, acoustics, oceanography, optics and diffraction, geometry, and other areas. In signal processing and related fields, Fourier analysis is typically thought of as decomposing a signal into its component frequencies and their amplitudes. This practical, applications-based professional handbook comprehensively covers the theory and applications of Fourier Analysis, spanning topics from engineering mathematics, signal process

  13. The Alcohol Dehydrogenase Kinetics Laboratory: Enhanced Data Analysis and Student-Designed Mini-Projects

    Science.gov (United States)

    Silverstein, Todd P.

    2016-01-01

    A highly instructive, wide-ranging laboratory project in which students study the effects of various parameters on the enzymatic activity of alcohol dehydrogenase has been adapted for the upper-division biochemistry and physical biochemistry laboratory. Our two main goals were to provide enhanced data analysis, featuring nonlinear regression, and…

  14. Laboratory Investigations on Estuary Salinity Mixing: Preliminary Analysis

    Directory of Open Access Journals (Sweden)

    F. H. Nuryazmeen

    2014-05-01

    Full Text Available Estuaries are bodies of water along the coasts that are formed when fresh water from rivers flows into and mixes with salt water from the ocean. The estuaries serve as a habitat to some aquatic lives, including mangroves. Human-induced activities such as dredging of shipping lanes along the bottom estuarine, the disposal of industrial wastes into the water system and shoreline development influence estuarine dynamics which include mixing process. These activities might contribute to salinity changes and further adversely affect the estuarine ecosystem. In order to study at the characteristics of the mixing between salt water (estuary and freshwater (river, a preliminary investigation had been done in the laboratory. Fresh water was released from one end of the flume and overflowing at weir at the other end. Meanwhile, salt water was represented by the red dye tracer released through a weir and intruded upstream as a gravity current. The isohalines are plotted to see the salinity patterns. Besides, to examine the spatial and temporal salinity profiles along the laboratory investigations, the plotted graphs have been made. The results show that the changes in salinity level along the flume due to mixing between fresh water and salt water. This showed typical salt-wedge estuary characteristics.

  15. An overview of semiconductor bridge, SCB, applications at Sandia National Laboratories

    Energy Technology Data Exchange (ETDEWEB)

    Bickes, R.W. Jr.; Grubelich, M.C.; Harris, S.M.; Merson, J.A.; Weinlein, J.H.

    1995-05-01

    The semiconductor bridge, SCB, developed by Sandia National Laboratories is a maturing technology now being used in several applications by Sandia customers. Most applications arose because of a need at the system level to provide explosive assemblies that were light weight, small volume, low cost and required small quantities of electrical energy to function -- for the purposes of this paper we define an explosive assembly to mean the combination of the firing set and an explosive component. As a result, and because conventional firing systems could not meet the stringent size, weight and energy requirements of our customers, we designed and are investigating SCB applications that range from devices for Sandia applications to igniters for fireworks. We present in this paper an overview of SCB technology with specific examples of the system designed for our customers to meet modern requirements that sophisticated explosive systems must satisfy in today`s market environments.

  16. Summary of failure analysis activities at Brookhaven National Laboratory

    International Nuclear Information System (INIS)

    Brookhaven National Laboratory has for many years conducted examinations related to the failures of nuclear materials and components. These examinations included the confirmation of root cause analyses, the determination of the causes of failure, identification of the species that accelerate corrosion, and comparison of the results of nondestructive examinations with those obtained by destructive examination. The results of those examinations, which had previously appeared in various formats (formal and informal reports, journal articles, etc.), have been collected together and summarized in the present report. The report is divided into sections according to the general subject matter (for example, corrosion, fatigue, etc.). Each section presents summaries of the information contained in specific reports and publications, all of which are fully identified as to title, authors, report number or journal reference, date of publication, and FIN number under which the work was performed

  17. Summary of failure analysis activities at Brookhaven National Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Cowgill, M.G.; Czajkowski, C.J.; Franz, E.M.

    1996-10-01

    Brookhaven National Laboratory has for many years conducted examinations related to the failures of nuclear materials and components. These examinations included the confirmation of root cause analyses, the determination of the causes of failure, identification of the species that accelerate corrosion, and comparison of the results of nondestructive examinations with those obtained by destructive examination. The results of those examinations, which had previously appeared in various formats (formal and informal reports, journal articles, etc.), have been collected together and summarized in the present report. The report is divided into sections according to the general subject matter (for example, corrosion, fatigue, etc.). Each section presents summaries of the information contained in specific reports and publications, all of which are fully identified as to title, authors, report number or journal reference, date of publication, and FIN number under which the work was performed.

  18. Evaluation of sugarcane laboratory ensiling and analysis techniques

    Directory of Open Access Journals (Sweden)

    André de Faria Pedroso

    2014-04-01

    Full Text Available The objective was to evaluate the effects of laboratory-silo type and method of silage extract production, respectively, on sugarcane silage fermentation and recovery of fermentation products. Sugarcane was mechanically harvested and ensiled in three different types of laboratory silos (five replicates: 9.7 × 30 cm PVC tubes with tight lids, equipped or unequipped with Bunsen valves, and 20 L plastic buckets with tight lids and Bunsen valves. Three methods were used to produce silage extracts for pH, ethanol, acetic and lactic acids determination: extraction of silage juice by a hydraulic press and production of water extracts using a stomacher or a blender. Total dry matter loss (231 g/kg DM was not affected by silo type. No interactions between silo type and method of silage extract production were observed for ethanol and organic acids contents in the silages. Interaction between silo type and method of silage extract preparation was detected for pH. Silo type affected ethanol content but did not affect lactic and acetic acids concentration in the silages. Dry matter, crude protein, neutral detergent fiber and ash were not affected by silo type. The method used to produce silage extracts affected the recovery of all fermentation products analyzed in the silages. Recovery of ethanol and acetic acid was higher when silage extracts were produced using a blender. For lactic acid recovery, the hydraulic press method was superior to the other two methods. Silage fermentation pattern is not affected by silo type, but the method used to produce silage extracts and some characteristics of silos affect the recovery of volatile fermentation products.

  19. Unsaturated moisture and radionuclide transport: laboratory analysis and modeling

    International Nuclear Information System (INIS)

    This report describes several laboratory procedures and computer model simulations used to evaluate the transport of water and radionuclides through unsaturated Hanford soils. The unsaturated hydraulic conductivity was measured using the steady state methods of Klute and the transient state method of Rose. These experimental data were compared to other conductivity models. Good agreement was found between all methods in the wet range; however, disagreement was found in the dry range. None of the conductivity models explicity addresses the water vapor component of the conductivity. This may explain the under prediction of the hydraulic conductivity in the dry range where vapor transport is important. Radionuclide transport through unsaturated media was investigated by using two solute transport models to describe the transport of tritium and strontium-85 in laboratory columns. A two parameter convective-dispersive model was compared with a four parameter mobile-immobile water model. Both models adequately described the movement of tritium and strontium through small (5 cm x 27.5 cm) columns and the movement of tritium and strontium through a large (0.5 m x 1.7) column. The dispersion coefficient was found to be sensitive to changes in both velocity and column length. The mobile-immoble water equations were not as sensitive to changes in experimental scales as the convective-dispersive equation. Both models were relatively successful in describing the rapid flush of strontium-85 from a column initially leached with a low salt solution followed by a high salt solution, a phenomona called the snow plow effect. The four parameter mobile-immobile water model predicted the initial release of the strontium more accurately than the two parameter convective-dispersive model. Both models confirm enhanced mobility of strontium-85 with leaching solutions of increased salt concentration

  20. Identification of Novel Epithelial Ovarian Cancer Biomarkers by Cross-laboratory Microarray Analysis

    Institute of Scientific and Technical Information of China (English)

    蒋学锋; 朱涛; 杨洁; 李双; 叶双梅; 廖书杰; 孟力; 卢运萍; 马丁

    2010-01-01

    The purpose of this study was to pool information in epithelial ovarian cancer by combining studies using Affymetrix expression microarray datasets made at different laboratories to identify novel biomarkers.Epithelial microarray expression information across laboratories was screened and combined after preprocessing raw microarray data,then ANOVA and unpaired T test statistical analysis was performed for identifying differentially expressed genes(DEGs),followed by clustering and pathway analysis for these ...

  1. A Cyclic Voltammetry Experiment for the Instrumental Analysis Laboratory.

    Science.gov (United States)

    Baldwin, Richard P.; And Others

    1984-01-01

    Background information and procedures are provided for experiments that illustrate the nature of cyclic voltammetry and its application in the characterization of organic electrode processes. The experiments also demonstrate the concepts of electrochemical reversibility and diffusion-controlled mass transfer. (JN)

  2. Strategic Management of Navy R&D Laboratories: An Application of Complexity Theory; Director of Navy Laboratories Case Study

    OpenAIRE

    Gates, Robert Valentine

    2003-01-01

    As part of an on-going process of centralizing control of government science and technology (S&T) after World War II, in 1966 the Navy went through a major reorganization that was intended to centralize the strategic management of the Navy laboratory system. This centralization was to be accomplished by placing the major Navy research and development activities in a single systems command - the Naval Material Command - and establishing the position of Director of Navy Laboratories. Organiza...

  3. Develop virtual joint laboratory for education like distance engineering system for robotic applications

    Science.gov (United States)

    Latinovic, T. S.; Deaconu, S. I.; Latinović, M. T.; Malešević, N.; Barz, C.

    2015-06-01

    This paper work with a new system that provides distance learning and online training engineers. The purpose of this paper is to develop and provide web-based system for the handling and control of remote devices via the Internet. Remote devices are currently the industry or mobile robots [13]. For future product development machine in the factory will be included in the system. This article also discusses the current use of virtual reality tools in the fields of science and engineering education. One programming tool in particular, virtual reality modeling language (VRML) is presented in the light of its applications and capabilities in the development of computer visualization tool for education. One contribution of this paper is to present the software tools and examples that can encourage educators to develop a virtual reality model to improve teaching in their discipline. [12] This paper aims to introduce a software platform, called VALIP where users can build, share, and manipulate 3D content in cooperation with the interaction processes in a 3D context, while participating hardware and software devices can be physical and / or logical distributed and connected together via the Internet. VALIP the integration of virtual laboratories to appropriate partners; therefore, allowing access to all laboratories in any of the partners in the project. VALIP provides advanced laboratory for training and research within robotics and production engineering, and thus, provides a great laboratory facilities with only having to invest a limited amount of resources at the local level to the partner site.

  4. Transition Analysis for the Mars Science Laboratory Entry Vehicle

    Science.gov (United States)

    Chang, Chau-Lyan; Choudhari, Meelan M.; Hollis, Brian R.; Li, Fei

    2009-01-01

    Viscous Laminar-turbulent transition plays an important role in the design of the Mars Science Laboratory (MSL) entry vehicle. The lift-to-drag ratio required for the precision landing trajectory will be achieved via an angle of attack equal to 16 degrees. At this relatively high angle of attack, the boundary layer flow near the leeward meridian is expected to transition early in the trajectory, resulting in substantially increased heating loads. This paper presents stability calculations and transition correlations for a series of wind tunnel models of the MSL vehicle. Experimentally measured transition onset locations are used to correlate with the N-factor calculations for various wind tunnel conditions. Due to relatively low post-shock Mach numbers near the edge of the boundary layer, the dominant instability waves are found to be of the first mode type. The N-factor values correlating with measured transition onset at selected test points from the Mach 6 conventional facility experiments fall between 3.5 and 4.5 and apparently vary linearly with the wind tunnel unit Reynolds number, indicating strong receptivity effect. The small transition N value is consistent with previous correlations for second-mode dominant transition in the same wind tunnel facility. Stability calculations for stationary and traveling crossflow instability waves in selected configurations indicate that an N value of 4 and 6, respectively, correlates reasonably well with transition onset discerned from one experimentally measured thermographic image.

  5. Laboratory aging of asphalt mixtures : simulation of reclaimed asphalt and application as test method for durability

    OpenAIRE

    Mollenhauer, Konrad; MOUILLET, Virginie; PIERARD, Nathalie; TUSAR, Marjan; Gabet, Thomas

    2012-01-01

    Surface asphalt courses reach their end of service life after a time span between 10 and 30 years, depending on their durability. Afterwards, the surface layer is usually milled and reused in asphalt mixtures as reclaimed asphalt. In order to enable the analysis of durability and recyclability of a new asphalt mixture, four laboratory aging procedures were designed and comparatively applied on twoasphalt mixes. Besides aging of loose asphalt mix in heating cabinets at varied temperatures and ...

  6. The application of acoustic emission measurements on laboratory testpieces to large scale pressure vessel monitoring

    International Nuclear Information System (INIS)

    A test pressure vessel containing 4 artificial defects was monitored for emission whilst pressure cycling to failure. Testpieces cut from both the failed vessel and from as-rolled plate material were tested in the laboratory. A marked difference in emission characteristics was observed between plate and vessel testpieces. Activity from vessel material was virtually constant after general yield and emission amplitudes were low. Plate testpieces showed maximum activity at general yield and more frequent high amplitude emissions. An attempt has been made to compare the system sensitivities between the pressure vessel test and laboratory tests. In the absence of an absolute calibration device, system sensitivities were estimated using dummy signals generated by the excitation of an emission sensor. The measurements have shown an overall difference in sensitivity between vessel and laboratory tests of approximately 25db. The reduced sensitivity in the vessel test is attributed to a combination of differences in sensors, acoustic couplant, attenuation, and dispersion relative to laboratory tests and the relative significance of these factors is discussed. Signal amplitude analysis of the emissions monitored from laboratory testpieces showed that, whith losses of the order of 25 to 30db, few emissions would be detected from the pressure vessel test. It is concluded that no reliable prediction of acoustic behaviour of a structure may be made from laboratory test unless testpieces of the actual structural material are used. A considerable improvement in detection sensitivity, is also required for reliable detection of defects in low strength ductile materials and an absolute method of system calibration is required between tests

  7. Effect of Land Application of Phosphorus-Saturated Gypsum on Soil Phosphorus in a Laboratory Incubation

    Directory of Open Access Journals (Sweden)

    Karen L. Grubb

    2012-01-01

    Full Text Available Agricultural drainage ditches can deliver high loads of phosphorus (P to surface water. Installation of filter structures containing P sorbing materials (PSMs, including gypsum, is an emerging practice that has shown promise to reduce these P loads. The objective of this study was to evaluate what effect soil amendment with gypsum would have on soil P concentrations and forms in a laboratory incubation experiment. Gypsum was saturated at two levels with P, and applied to a silt loam and a sandy loam at two rates. The treated soils were incubated in the laboratory at 25°C, and samples were collected on eight dates between 0 and 183 days after amendment. Spent gypsum application did not significantly increase soil water-extractable or Mehlich 3 P when applied at typical agronomic rates. This appears to be a viable strategy to remove P from agricultural drainage waters but does not appear to provide any additional P fertilizer value.

  8. Application of PCR-based methods for diagnosis of intestinal parasitic infections in the clinical laboratory.

    Science.gov (United States)

    Verweij, Jaco J

    2014-12-01

    For many years PCR- and other DNA-based methods of pathogen detection have been available in most clinical microbiology laboratories; however, until recently these tools were not routinely exploited for the diagnosis of parasitic infections. Laboratories were initially reluctant to implement PCR as incorporation of such assays within the algorithm of tools available for the most accurate diagnosis of a large variety of parasites was unclear. With regard to diagnosis of intestinal parasitic infections, the diversity of parasites that one can expect in most settings is far less than the parasitological textbooks would have you believe, hence developing a simplified diagnostic triage is feasible. Therefore the classical algorithm based on population, patient groups, use of immuno-suppressive drugs, travel history etc. is also applicable to decide when to perform and which additional techniques are to be used, if a multiplex PCR panel is used as a first-line screening diagnostic.

  9. Analysis of drying potato kinetics in laboratory conditions

    Directory of Open Access Journals (Sweden)

    Zlatković B.P.

    2005-01-01

    Full Text Available Chemistry is in its nature a fundamental science, but nowadays its results are increasingly used in practice. In such a way, many syntheses of important nutrition and industrial compounds (chemical technology, or destruction of harmful substances (chemical ecology have been developed. The analytic part of chemistry (analytical chemistry has found a significant usage even in optimization of technological processes of food technology. One of the oldest ways of food preservation is drying (dehydration. The basis of this process of preservation is to vaporize water, to dry enough the product, in order to stop the activity of enzymes and possibility of microorganisms’ development. Water in agricultural products is not free but bound to dry matter. Therefore, for its vaporizing it is necessary to bring enough heat. The part of the brought heat is used for vaporizing water, but one part of it becomes the energy for activation of several chemical reactions that decrease the nutritive values and the quality of future food. Therefore, the important engineering problem emerges: determination of optimal conditions for drying. For optimization of technological process of drying, it is necessary to do mathematical modeling of dependence of water vaporizing speed from environmental conditions beforehand. The aim of this paper is to determine potato pieces drying kinetics in laboratory dryer, in order to determine the optimal conditions for its industrial dehydration. It was established that in the first quarter of the time of drying evaporated 28.3% of total evaporation of water, and then in order by quarters: 53%, 14.1% and 4.6%, respectively. The greatest speed of drying was realized at moisture of potatoes about 50%.

  10. Facilitating Code Reuse for the Rapid Deployment of Web Mapping Applications at the National Renewable Energy Laboratory (NREL)

    Science.gov (United States)

    Helm, C. W.; Sparks, W.; Levene, J.; Hostetler, M.

    2008-12-01

    The National Renewable Energy Laboratory in Golden, CO has developed a software platform that provides for the development of fully customized and unique web mapping applications that reuse a common base of software code. The application capabilities that have been developed within this platform include spatial data visualization, large-scale data retrieval and the analysis of various renewable energy resource data-sets. The platform consists of three primary components of reusable code: the back-end data storage and retrieval engine, a user-customizable Data Styling Engine, and front end user interface code. Each component of the platform represents a reusable code base from which new applications can be generated with a minimal amount of new code. This reusable code base can be thought of in the same vein as object oriented development: the reusable code is analogous to a base class that specific applications inherit from and extend. The architecture was motivated by a requirement to rapidly develop and deploy multiple web-based mapping applications for varying renewable energy and alternative fuel technologies, and for different customers. It was observed that these applications share a significant set of core features and functionality, with varying degrees of customization required for each application. A series of needs instigated the development of the architecture: * New applications should not require re-implementation of existing functionality (either through re-coding or "copy and paste" reuse) * Enhancements to the base functionality could automatically propagate through all derived applications * All applications should be able to utilize a common, internal (to NREL) Web Mapping Service (WMS), or any external WMS * The framework must support user authentication, role-based access control to specific data layers, and user customization of layer styling. This requirement led to the development of the Data Styling Engine. * A developer should be able to

  11. National laboratories

    International Nuclear Information System (INIS)

    The foundation of a 'National Laboratory' which would support a Research center in synchrotron radiation applications is proposed. The essential features of such a laboratory differing of others centers in Brazil are presented. (L.C.)

  12. The filter-press FM01-LC laboratory flow reactor and its applications

    International Nuclear Information System (INIS)

    The FM01-LC is a laboratory-scale, electrochemical filter-press cell with a projected electrode area of 64 cm2 and a rectangular electrolyte flow channel which was originally based on the larger FM21-SP electrolyser of 2100 cm2 projected electrode area designed for the chlor-alkali industry then diversified to other applications. Many laboratories and industries have utilised this type of controlled flow reactor containing plane parallel electrodes in a rectangular channel for industrial and commercial applications. The diverse range of electrodes possible in such cells is emphasized with examples including 3-D metals and carbon, coated metal electrodes and nanostructured surfaces offering a high surface area. The experimental characterization and computational modelling of its reaction environment are concisely described discussed to appreciate the features of this type of electrochemical reactor. The cell construction and reaction environment are summarized, followed by an illustration of its use for a range of applications that include organic and inorganic electrosynthesis, metal ion removal, energy storage, environmental remediation (e.g., precious metal recycling or anodic destruction of organics) and drinking water treatment. Examples of the cell for energy conversion and storage (flow batteries and proton exchange membrane fuel cells) are briefly illustrated. The use of such a flow cell for the characterization of new electrochemical processes and to provide data enabling scale-up is considered

  13. Chemical analysis of thin films at Sandia National Laboratories

    International Nuclear Information System (INIS)

    The characterization of thin films produced by chemical and physical vapor deposition requires special analytical techniques. When the average compositions of the films are required, dissolution of the thin films and measurement of the concentrations of the solubilized species is the appropriate analytical approach. In this report techniques for the wet chemical analysis of thin films of Si:Al, P2O5:SiO2, B2O3:SiO2, TiB/sub x/ and TaB/sub x/ are described. The analyses are complicated by the small total quantities of these analytes present in the films, the refractory characters of these analytes, and the possibility of interferences from the substrates on which the films are deposited. Etching conditions are described which dissolve the thin films without introducing interferences from the substrates. A chemical amplification technique and inductively coupled plasma atomic emission spectrometry are shown to provide the sensitivity required to measure the small total quantities (micrograms to milligrams) of analytes present. Also the chemical analysis data has been used to calibrate normal infrared absorption spectroscopy to give fast estimates of the phosphorus and/or boron dopant levels in thin SiO2 films

  14. The role of laboratory analysis in horizontal well evaluation

    Energy Technology Data Exchange (ETDEWEB)

    Gruber, N. G.; Gardner, R.; Bujnowicz, R.

    1995-05-01

    Horizontal wells are not routinely cored, but are usually drilled in developed fields where good coverage exist. It was recommended that prior to horizontal drilling (which provides a good opportunity to re-evaluate pre-existing cores) an assessment of reservoir descriptions, wellbore stability, and formation damage potential be made. Reservoir description was said to be difficult to establish in horizontal wells that were not cored or logged. Currently used methods include thin-section petrology and mercury injection on drill cuttings from the horizontal well. While horizontal wells are not routinely logged, gamma ray devices that are often run in conjunction with MWD tools were considered capable of providing, continuous log-profile data for more accurate permeability modelling. It was shown that wellbore information could be performed by static or dynamic methods for prediction of the rock failure envelope and safe operating conditions during drilling and production. Mud solids invasion was found to be a key cause of damage that could be assessed and optimized using mercury injection on core or cuttings with a size analysis of mud particles. Coring and core analysis was expected to become a more important source of analytical information when integrated with other sources such as downhole logs.

  15. Applications of nuclear techniques for in vivo body composition studies at Brookhaven National Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Cohn, S.H.; Ellis, K.J.; Vartsky, D.; Vaswani, A.N.; Wielopolski, L.

    1981-01-01

    A series of technical developments and their clinical applications in various nuclear technologies at Brookhaven National Laboratory is described. These include the development of a portable neutron activation facility for measuring cadmium in vivo in kidney and liver, a technique for the measurement of body iron utilizing nuclear resonant scattering of gamma rays, a non-invasive measure of the skeletal levels of lead by an x-ray fluorescence technique, and the development of a pulsed Van de Graaff generator as a source of pulsed neutrons for the measurement of lung silicon. (ACR)

  16. Applications of nuclear techniques for in vivo body composition studies at Brookhaven National Laboratory

    International Nuclear Information System (INIS)

    A series of technical developments and their clinical applications in various nuclear technologies at Brookhaven National Laboratory is described. These include the development of a portable neutron activation facility for measuring cadmium in vivo in kidney and liver, a technique for the measurement of body iron utilizing nuclear resonant scattering of gamma rays, a non-invasive measure of the skeletal levels of lead by an x-ray fluorescence technique, and the development of a pulsed Van de Graaff generator as a source of pulsed neutrons for the measurement of lung silicon

  17. Laboratory Information Management Software for genotyping workflows: applications in high throughput crop genotyping

    Directory of Open Access Journals (Sweden)

    Prasanth VP

    2006-08-01

    Full Text Available Abstract Background With the advances in DNA sequencer-based technologies, it has become possible to automate several steps of the genotyping process leading to increased throughput. To efficiently handle the large amounts of genotypic data generated and help with quality control, there is a strong need for a software system that can help with the tracking of samples and capture and management of data at different steps of the process. Such systems, while serving to manage the workflow precisely, also encourage good laboratory practice by standardizing protocols, recording and annotating data from every step of the workflow. Results A laboratory information management system (LIMS has been designed and implemented at the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT that meets the requirements of a moderately high throughput molecular genotyping facility. The application is designed as modules and is simple to learn and use. The application leads the user through each step of the process from starting an experiment to the storing of output data from the genotype detection step with auto-binning of alleles; thus ensuring that every DNA sample is handled in an identical manner and all the necessary data are captured. The application keeps track of DNA samples and generated data. Data entry into the system is through the use of forms for file uploads. The LIMS provides functions to trace back to the electrophoresis gel files or sample source for any genotypic data and for repeating experiments. The LIMS is being presently used for the capture of high throughput SSR (simple-sequence repeat genotyping data from the legume (chickpea, groundnut and pigeonpea and cereal (sorghum and millets crops of importance in the semi-arid tropics. Conclusion A laboratory information management system is available that has been found useful in the management of microsatellite genotype data in a moderately high throughput genotyping

  18. Inter laboratory comparison on Computed Tomography for industrial applications in the slaughterhouses

    DEFF Research Database (Denmark)

    Angel, Jais Andreas Breusch; Christensen, Lars Bager; Cantatore, Angela;

    2014-01-01

    Application of CT scanning - CIA-CT”. In the comparison, 4 laboratories from 4 countries were involved, and CT scanned two synthetic phantoms, which were used instead of real pig carcasses. A phantom consists of several polymer components as Poly methyl methacrylate (PMMA), Polyethylene (PE) and Polyvinyl...... chloride (PVC). The polymer materials PMMA, PE and PVC represent tissue types as respectively: meat, fat, and bone. The one phantom represents a skinny pig carcass, when the other one represents a fat pig carcass with a higher content of fat (PE). The phantoms were produced through milling and cutting...

  19. Quality Assessment of Urinary Stone Analysis: Results of a Multicenter Study of Laboratories in Europe.

    Directory of Open Access Journals (Sweden)

    Roswitha Siener

    Full Text Available After stone removal, accurate analysis of urinary stone composition is the most crucial laboratory diagnostic procedure for the treatment and recurrence prevention in the stone-forming patient. The most common techniques for routine analysis of stones are infrared spectroscopy, X-ray diffraction and chemical analysis. The aim of the present study was to assess the quality of urinary stone analysis of laboratories in Europe. Nine laboratories from eight European countries participated in six quality control surveys for urinary calculi analyses of the Reference Institute for Bioanalytics, Bonn, Germany, between 2010 and 2014. Each participant received the same blinded test samples for stone analysis. A total of 24 samples, comprising pure substances and mixtures of two or three components, were analysed. The evaluation of the quality of the laboratory in the present study was based on the attainment of 75% of the maximum total points, i.e. 99 points. The methods of stone analysis used were infrared spectroscopy (n = 7, chemical analysis (n = 1 and X-ray diffraction (n = 1. In the present study only 56% of the laboratories, four using infrared spectroscopy and one using X-ray diffraction, fulfilled the quality requirements. According to the current standard, chemical analysis is considered to be insufficient for stone analysis, whereas infrared spectroscopy or X-ray diffraction is mandatory. However, the poor results of infrared spectroscopy highlight the importance of equipment, reference spectra and qualification of the staff for an accurate analysis of stone composition. Regular quality control is essential in carrying out routine stone analysis.

  20. Three-dimensional excavation analysis based on crack tensor model at the Mizunami Underground Research Laboratory

    International Nuclear Information System (INIS)

    The Japan Atomic Energy Agency (JAEA) is conducting the Mizunami Underground Research Laboratory (MIU) Project in order to develop comprehensive geological investigation and engineering techniques for deep underground applications. In the rock mechanical investigations, development of the rock mechanical conceptual model and analysis of excavation disturbance were carried out in the surface-based investigation phase (Phase I) and the construction phase (Phase II). In the Phase I, the equivalent continuum model based on crack tensor theory was applied to predict the rock mass behavior including expected excavation disturbance. In the Phase II, excavation analysis is conducted using crack tensor calculated using tunnel wall mapping and rock mechanics test results, and fundamental study to evaluate the scale of the crack tensor is conducted. In this study, three-dimensional excavation analysis is conducted. Crack tensor used in this analysis was measured using the data collected in wall surface observation in study tunnels such as the horizontal tunnels at the depth of 500 m. The results of analysis were compared with existing measurements at the depth of 500 m obtained using in-situ strain meters. The excavation analysis using crack tensor and initial stress obtained from the Phase I and Phase II were carried out to examine the influence of crack tensor and initial stress on the results of analysis. The result showed that mechanical behavior in Phase I at ventilation shaft at the depth of 500 m is influenced by direction of the maximum initial principle stress. On the other hand, mechanical behavior in Phase II is influenced by predominant direction of crack. The maximum displacement in Phase II is larger than that in Phase I. This is attributed to the difference of crack tensor trace F0. The maximum shear stress in Phase I is larger than that in Phase II. This is attributed to the difference of amount of initial stress. At the end of this report, we summarize

  1. Real analysis modern techniques and their applications

    CERN Document Server

    Folland, Gerald B

    1999-01-01

    An in-depth look at real analysis and its applications-now expanded and revised.This new edition of the widely used analysis book continues to cover real analysis in greater detail and at a more advanced level than most books on the subject. Encompassing several subjects that underlie much of modern analysis, the book focuses on measure and integration theory, point set topology, and the basics of functional analysis. It illustrates the use of the general theories and introduces readers to other branches of analysis such as Fourier analysis, distribution theory, and probability theory.This edi

  2. Analytical laboratory quality assurance guidance in support of EM environmental sampling and analysis activities

    International Nuclear Information System (INIS)

    This document introduces QA guidance pertaining to design and implementation of laboratory procedures and processes for collecting DOE Environmental Restoration and Waste Management (EM) ESAA (environmental sampling and analysis activities) data. It addresses several goals: identifying key laboratory issues and program elements to EM HQ and field office managers; providing non-prescriptive guidance; and introducing environmental data collection program elements for EM-263 assessment documents and programs. The guidance describes the implementation of laboratory QA elements within a functional QA program (development of the QA program and data quality objectives are not covered here)

  3. Fitness of public health laboratory in the Republic of Macedonia for the application of standards for quality

    OpenAIRE

    Kiroska-Petreska, Evgenija; Popovska, Katja; Kostik, Vesna; Djorgev, Dragan; Petrovska, Branka

    2014-01-01

    The main goal of this master’s study is to determine preparedness of public health laboratories concerning the conditions (area, equipment, and staff) and in relation to quality standard application, with identification of the current condition of laboratories in relation to the area, equipment and staff as well as quality standard application in the Institute and the Public Health Centers in the Republic of Macedonia. This research was conducted through a Questionnaire, which was adapted fro...

  4. Innovation in laboratory analysis in heavy water plants (Paper No. 6.7)

    International Nuclear Information System (INIS)

    Heavy Water Plant (Baroda) is operated with the laboratory's analytical support averaging 50,000 measurements on 22,000 samples per annum apart from various experiments and tests for problem solving and for indigenisation of process parameters. Each measurement has its own importance in attaining the optimised process and quality controls for sustained operation of the plant. This paper attempts to discuss the importance of laboratory analysis. (author). 7 refs

  5. Quantitative inverse modelling of a cylindrical object in the laboratory using ERT: An error analysis

    Science.gov (United States)

    Korteland, Suze-Anne; Heimovaara, Timo

    2015-03-01

    Electrical resistivity tomography (ERT) is a geophysical technique that can be used to obtain three-dimensional images of the bulk electrical conductivity of the subsurface. Because the electrical conductivity is strongly related to properties of the subsurface and the flow of water it has become a valuable tool for visualization in many hydrogeological and environmental applications. In recent years, ERT is increasingly being used for quantitative characterization, which requires more detailed prior information than a conventional geophysical inversion for qualitative purposes. In addition, the careful interpretation of measurement and modelling errors is critical if ERT measurements are to be used in a quantitative way. This paper explores the quantitative determination of the electrical conductivity distribution of a cylindrical object placed in a water bath in a laboratory-scale tank. Because of the sharp conductivity contrast between the object and the water, a standard geophysical inversion using a smoothness constraint could not reproduce this target accurately. Better results were obtained by using the ERT measurements to constrain a model describing the geometry of the system. The posterior probability distributions of the parameters describing the geometry were estimated with the Markov chain Monte Carlo method DREAM(ZS). Using the ERT measurements this way, accurate estimates of the parameters could be obtained. The information quality of the measurements was assessed by a detailed analysis of the errors. Even for the uncomplicated laboratory setup used in this paper, errors in the modelling of the shape and position of the electrodes and the shape of the domain could be identified. The results indicate that the ERT measurements have a high information content which can be accessed by the inclusion of prior information and the consideration of measurement and modelling errors.

  6. Treatment of COD analysis liquid wastes generated in environmental laboratories

    Directory of Open Access Journals (Sweden)

    Tatiana Mañunga

    2010-08-01

    Full Text Available COD analysis is often carried out in environmental labs. Its wastes are considered hazardous due to the content of metals such as Cr, Ag and Hg; treating these wastes is considered complex and expensive. The experimental results of metal ion precipitation in COD wastes with affordable chemical products are reported in this work. Cr (VI was chemically reduced by adding 200 mg.L-1 of glucose to Cr (III. Final Cr (VI concentration was less than 0.5 mg.L-1. Cr (III was precipitated as a metallic hydroxide by adding NaOH and Ag was reduced to less than 0.2 mg.L-1 by adding 2 g.L-1 of NaCl. Hg was reduced to less than 0.005 mg.L-1 with 10 g.L-1 of FeS. The proposed reduction-precipitation methodology allowed minimising the liquid residue’s hazardous characteristics so that it complied with the maximum allowable values established in Chapter 6, Article 74 of Decree 1594/1984 that regulates the use of water and liquid residues.

  7. Ion beam analysis fundamentals and applications

    CERN Document Server

    Nastasi, Michael; Wang, Yongqiang

    2015-01-01

    Ion Beam Analysis: Fundamentals and Applications explains the basic characteristics of ion beams as applied to the analysis of materials, as well as ion beam analysis (IBA) of art/archaeological objects. It focuses on the fundamentals and applications of ion beam methods of materials characterization.The book explains how ions interact with solids and describes what information can be gained. It starts by covering the fundamentals of ion beam analysis, including kinematics, ion stopping, Rutherford backscattering, channeling, elastic recoil detection, particle induced x-ray emission, and nucle

  8. Safety analysis report for packaging (SARP) of the Oak Ridge National Laboratory. TRU curium shipping container

    International Nuclear Information System (INIS)

    An analytical evaluation of the Oak Ridge National Laboratory Transuranium (TRU) Curium Shipping Container was made to demonstrate its compliance with the regulations governing offsite shipment of packages containing radioactive material. The evaluation encompassed five primary categories: structural integrity, thermal resistance, radiation shielding, nuclear criticality safety, and quality assurance. The results of the evaluation show that the container complies with the applicable regulations

  9. Using Mole Ratios of Electrolytic Products of Water for Analysis of Household Vinegar: An Experiment for the Undergraduate Physical Chemistry Laboratory

    Science.gov (United States)

    Dabke, Rajeev B.; Gebeyehu, Zewdu

    2012-01-01

    A simple 3-h physical chemistry undergraduate experiment for the quantitative analysis of acetic acid in household vinegar is presented. The laboratory experiment combines titration concept with electrolysis and an application of the gas laws. A vinegar sample was placed in the cathode compartment of the electrolysis cell. Electrolysis of water…

  10. Laboratory Building.

    Energy Technology Data Exchange (ETDEWEB)

    Herrera, Joshua M. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2015-03-01

    This report is an analysis of the means of egress and life safety requirements for the laboratory building. The building is located at Sandia National Laboratories (SNL) in Albuquerque, NM. The report includes a prescriptive-based analysis as well as a performance-based analysis. Following the analysis are appendices which contain maps of the laboratory building used throughout the analysis. The top of all the maps is assumed to be north.

  11. Analysis of mixed data methods & applications

    CERN Document Server

    de Leon, Alexander R

    2013-01-01

    A comprehensive source on mixed data analysis, Analysis of Mixed Data: Methods & Applications summarizes the fundamental developments in the field. Case studies are used extensively throughout the book to illustrate interesting applications from economics, medicine and health, marketing, and genetics. Carefully edited for smooth readability and seamless transitions between chaptersAll chapters follow a common structure, with an introduction and a concluding summary, and include illustrative examples from real-life case studies in developmental toxicolog

  12. TV content analysis techniques and applications

    CERN Document Server

    Kompatsiaris, Yiannis

    2012-01-01

    The rapid advancement of digital multimedia technologies has not only revolutionized the production and distribution of audiovisual content, but also created the need to efficiently analyze TV programs to enable applications for content managers and consumers. Leaving no stone unturned, TV Content Analysis: Techniques and Applications provides a detailed exploration of TV program analysis techniques. Leading researchers and academics from around the world supply scientifically sound treatment of recent developments across the related subject areas--including systems, architectures, algorithms,

  13. Confirmative laboratory tests and one example of forensic application of the probabilistic approach to the area of convergence in BPA

    CERN Document Server

    Camana, Francesco; Gravina, Nicola; Quintarelli, Marco

    2013-01-01

    One of the most important results in Bloodstain Pattern Analysis (BPA) is the determination of the area of convergence of blood-drop trajectories. This area is directly related to the point of origin of the projections and is often indicative of the point where the main action of a crime has occurred. One of us has recently proposed a method to statistically characterize this area by mean of a probabilistic approach based on the uncertainties of the angles of impact of the stains in the pattern. In our work we present some laboratory tests that confirm the validity of the method, returning good agreement between the empirical and the theoretical data. By comparing the results of different operators, we also show the robustness of the method, in that the results are independent of the analytical approach of the single experimenter. Finally, we describe an example of application to a real forensic case.

  14. A Paradigmatic Analysis of Digital Application Marketplaces

    DEFF Research Database (Denmark)

    Ghazawneh, Ahmad; Henfridsson, Ola

    2015-01-01

    This paper offers a paradigmatic analysis of digital application marketplaces for advancing information systems research on digital platforms and ecosystems. We refer to the notion of digital application marketplace, colloquially called ‘appstores,’ as a platform component that offers a venue for...

  15. Spatial analysis of aquifer response times for radial flow processes: Nondimensional analysis and laboratory-scale tests

    Science.gov (United States)

    Jazaei, Farhad; Simpson, Matthew J.; Clement, T. Prabhakar

    2016-01-01

    A fundamental concept in groundwater hydrology is the notion of steady state, or equilibrium conditions. When a system at some initial steady state condition is perturbed by pumping, a transient cone of depression will develop and the system will approach a new steady state condition. Understanding the time scale required for the transient process to occur is of practical interest since it would help practitioners decide whether to use a steady state model or a more complicated transient model. Standard approaches to estimate the response time use simple scaling relationships which neglect spatial variations. Alternatively, others define the response time to be the amount of time taken for the difference between the transient and steady state solutions to fall below some arbitrary tolerance level. Here, we present a novel approach and use the concept of mean action time to predict aquifer response time scales in a two-dimensional radial geometry for pumping, injection and recovery processes. Our approach leads to relatively simple closed form expressions that explicitly show how the time scale depends on the hydraulic parameters and position. Furthermore, our dimensionless framework allows us to predict the response time scales for a range of applications including small scale laboratory problems and large scale field problems. Our analysis shows that the response time scales vary spatially, but are equivalent for pumping, injection and associated recovery processes. Furthermore, the time scale is independent of the pumping or injection flow rate. We test these predictions in a laboratory scale aquifer and find that our physical measurements corroborate the theoretical predictions.

  16. The first 110 years of laboratory automation: technologies, applications, and the creative scientist.

    Science.gov (United States)

    Olsen, Kevin

    2012-12-01

    Prior to the widespread availability of electronic components after the Second World War, laboratory automation was constructed by end users and designed for specific tasks, mostly filtration, percolation, and washing operations. The earliest mention of automation in the chemical literature of the United States was in 1875, announcing a device to wash filtrates unattended. In the years that followed, a small number of commercial automated devices were sold, including large grinders for the preparation of coal samples. Around 1900, power stations began adopting automated carbon dioxide analysis. The development of electrical equipment for conductivity measurements enabled the first commercial, automated gas detection instruments for laboratory and field use around the time of the First World War. The growth of industrial production in the 1920s led to a desire for automated testing equipment, and the growing rubber industry was among the more successful early adapters. Photoelectric cells were first used in the early 1930s to create automatic titrators, and by the 1950s, automatic titration encompassed coulometric, potentiometric, and photometric devices. Combinations of chart recorders, photocells, and timers created other types of automated equipment such as stills and fraction collectors. The first true stand-alone automation for the laboratory included clinical chemistry analyzers, introduced during the 1950s. PMID:22893633

  17. Mathematical analysis, approximation theory and their applications

    CERN Document Server

    Gupta, Vijay

    2016-01-01

    Designed for graduate students, researchers, and engineers in mathematics, optimization, and economics, this self-contained volume presents theory, methods, and applications in mathematical analysis and approximation theory. Specific topics include: approximation of functions by linear positive operators with applications to computer aided geometric design, numerical analysis, optimization theory, and solutions of differential equations. Recent and significant developments in approximation theory, special functions and q-calculus along with their applications to mathematics, engineering, and social sciences are discussed and analyzed. Each chapter enriches the understanding of current research problems and theories in pure and applied research.

  18. Idaho National Laboratory Quarterly Event Performance Analysis FY 2013 4th Quarter

    Energy Technology Data Exchange (ETDEWEB)

    Lisbeth A. Mitchell

    2013-11-01

    This report is published quarterly by the Idaho National Laboratory (INL) Performance Assurance Organization. The Department of Energy Occurrence Reporting and Processing System (ORPS) as prescribed in DOE Order 232.2 “Occurrence Reporting and Processing of Operations Information” requires a quarterly analysis of events, both reportable and not reportable for the previous twelve months. This report is the analysis of occurrence reports and deficiency reports (including not reportable events) identified at the Idaho National Laboratory (INL) during the period of October 2012 through September 2013.

  19. Computer Series, 82. The Application of Expert Systems in the General Chemistry Laboratory.

    Science.gov (United States)

    Settle, Frank A., Jr.

    1987-01-01

    Describes the construction of expert computer systems using artificial intelligence technology and commercially available software, known as an expert system shell. Provides two applications; a simple one, the identification of seven white substances, and a more complicated one involving the qualitative analysis of six metal ions. (TW)

  20. Reactor applications of quantitative diffraction analysis

    International Nuclear Information System (INIS)

    Current work in quantitative diffraction analysis was presented under the main headings of: thermal systems, fast reactor systems, SGHWR applications and irradiation damage. Preliminary results are included on a comparison of various new instrumental methods of boron analysis as well as preliminary new results on Zircaloy corrosion, and materials transfer in liquid sodium. (author)

  1. Design and Analysis of Web Application Frameworks

    DEFF Research Database (Denmark)

    Schwarz, Mathias Romme

    -state manipulation vulnerabilities. The hypothesis of this dissertation is that we can design frameworks and static analyses that aid the programmer to avoid such errors. First, we present the JWIG web application framework for writing secure and maintainable web applications. We discuss how this framework solves...... some of the common errors through an API that is designed to be safe by default. Second, we present a novel technique for checking HTML validity for output that is generated by web applications. Through string analysis, we approximate the output of web applications as context-free grammars. We model...... the HTML validation algorithm and the DTD language, and we generalize the validation algorithm to work for context-free grammars. Third, we present a novel technique for identifying client-state manipulation vulnerabilities. The technique uses a combination of output analysis and information ow analysis...

  2. Computational Laboratory

    Data.gov (United States)

    Federal Laboratory Consortium — This laboratory contains a number of commercial off-the-shelf and in-house software packages allowing for both statistical analysis as well as mathematical modeling...

  3. Wavelet analysis and its applications an introduction

    CERN Document Server

    Yajnik, Archit

    2013-01-01

    "Wavelet analysis and its applications: an introduction" demonstrates the consequences of Fourier analysis and introduces the concept of wavelet followed by applications lucidly. While dealing with one dimension signals, sometimes they are required to be oversampled. A novel technique of oversampling the digital signal is introduced in this book alongwith necessary illustrations. The technique of feature extraction in the development of optical character recognition software for any natural language alongwith wavelet based feature extraction technique is demonstrated using multiresolution analysis of wavelet in the book.

  4. The Effect of Simulation-Assisted Laboratory Applications on Pre-Service Teachers' Attitudes towards Science Teaching

    Science.gov (United States)

    Ulukök, Seyma; Sari, Ugur

    2016-01-01

    In this study, the effects of computer-assisted laboratory applications on pre-service science teachers' attitudes towards science teaching were investigated and the opinions of the pre-service teachers about the application were also determined. The study sample consisted of 46 students studying science teaching Faculty of Education. The study…

  5. 2002 Wastewater Land Application Site Performance Reports for the Idaho National Engineering and Environmental Laboratory and Associated Documentation

    Energy Technology Data Exchange (ETDEWEB)

    Meachum, Teresa Ray; Michael G. Lewis

    2003-02-01

    The 2002 Wastewater Land Application site Performance Reports for the Idaho National Engineering and Environmental Laboratory describe site conditions for the facilities with State of Idaho Wastewater Land Application Permits. Permit-required monitoring data are summarized, and permit exceedences or environmental impacts relating to the operation of the facilities during the 2002 permit year are discussed.

  6. An Analysis Method of Business Application Framework

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    We discuss the evolution of object-oriented software developmentpr o cess based on software pattern. For developing mature software fra mework and component, we advocate to elicit and incorporate software patterns fo r ensuing quality and reusability of software frameworks. On the analysis base o f requirement specification for business application domain, we present analysis method and basic role model of software framework. We also elicit analysis patt ern of framework architecture, and design basic role classes and their structure .

  7. Photovoltaic Calibrations at the National Renewable Energy Laboratory and Uncertainty Analysis Following the ISO 17025 Guidelines

    Energy Technology Data Exchange (ETDEWEB)

    Emery, Keith [National Renewable Energy Lab. (NREL), Golden, CO (United States)

    2016-09-01

    The measurement of photovoltaic (PV) performance with respect to reference conditions requires measuring current versus voltage for a given tabular reference spectrum, junction temperature, and total irradiance. This report presents the procedures implemented by the PV Cell and Module Performance Characterization Group at the National Renewable Energy Laboratory (NREL) to achieve the lowest practical uncertainty. A rigorous uncertainty analysis of these procedures is presented, which follows the International Organization for Standardization (ISO) Guide to the Expression of Uncertainty in Measurement. This uncertainty analysis is required for the team’s laboratory accreditation under ISO standard 17025, “General Requirements for the Competence of Testing and Calibration Laboratories.” The report also discusses additional areas where the uncertainty can be reduced.

  8. Photovoltaic Calibrations at the National Renewable Energy Laboratory and Uncertainty Analysis Following the ISO 17025 Guidelines

    Energy Technology Data Exchange (ETDEWEB)

    Emery, Keith

    2016-09-01

    The measurement of the photovoltaic (PV) performance with respect to reference conditions requires measuring the current versus voltage with respect to a given tabular reference spectrum, junction temperature, and total irradiance. This report briefly discusses the procedures implemented by the PV Cell and Module Performance Characterization Group at the National Renewable Energy Laboratory (NREL) to achieve the lowest practical uncertainty. We present a rigorous uncertainty analysis of these procedures following the International Organization for Standardization (ISO) 'Guide to the Expression of Uncertainty in Measurement.' This uncertainty analysis is required for our team's laboratory accreditation under ISO standard 17025, 'General Requirements for the Competence of Testing and Calibration Laboratories.' The report also discusses additional areas where the uncertainty can be reduced.

  9. Calcareous Sodic Soil Reclamation as Affected by Corn Stalk Application and Incubation:A Laboratory Study

    Institute of Scientific and Technical Information of China (English)

    LI Fa-Hu; R.KEREN

    2009-01-01

    A laboratory lysimeter experiment was conducted to investigate the effects of forage corn (Zea mays L.) stalk application on the CO2 concentration in soil air and calcareous sodic soil reclamation.The experimental treatments tested were soil exchangeable sodium percentage (ESP) levels of 1,11,and 19,added corn stalk contents of 0 to 36 g kg-1,and incubation durations of 30 and 60 days.The experimental results indicated that corn stalk application and incubation significantly increased CO2 partial pressure in soil profile and lowered pH value in soil solution,subsequently increased native CaCO3 mineral dissolution and electrolyte concentration of soil solution,and finally significantly contributed to reduction on soil sodicity level.The reclamation efficiency of calcareous sodic soils increased with the added corn stalk.When corn stalks were added at the rates of 22 and 34 g kg-1 into the soil with initial ESP of 19,its ESP value was decreased by 56% and 78%,respectively,after incubation of 60 days and the leaching of 6.5 pore volumes (about 48 L of percolation water) with distilled water.Therefore,crop stalk application and incubation could be used as a choice to reclaim moderate calcareous sodic soils or as a supplement of phytoremediation to improve reclamation efficiency.

  10. Firing Room Remote Application Software Development & Swamp Works Laboratory Robot Software Development

    Science.gov (United States)

    Garcia, Janette

    2016-01-01

    The National Aeronautics and Space Administration (NASA) is creating a way to send humans beyond low Earth orbit, and later to Mars. Kennedy Space Center (KSC) is working to make this possible by developing a Spaceport Command and Control System (SCCS) which will allow the launch of Space Launch System (SLS). This paper's focus is on the work performed by the author in her first and second part of the internship as a remote application software developer. During the first part of her internship, the author worked on the SCCS's software application layer by assisting multiple ground subsystems teams including Launch Accessories (LACC) and Environmental Control System (ECS) on the design, development, integration, and testing of remote control software applications. Then, on the second part of the internship, the author worked on the development of robot software at the Swamp Works Laboratory which is a research and technology development group which focuses on inventing new technology to help future In-Situ Resource Utilization (ISRU) missions.

  11. System Analysis Theory and Applications

    CERN Document Server

    Zgurovsky, Mikhail Z

    2007-01-01

    The foundations of system analysis as an applied scientific methodology assigned for the investigation of complex and highly interdisciplinary problems are provided in this monograph. The basic definitions and the methodological and theoretical basis of formalization and solution processes in various subject domains are presented. The methods of formalizing the system tasks and reducing them to a solvable form under real-world conditions and by taking into account e.g. sets of contradictory purposes, quantitative and qualitative characteristics of information, different kinds of uncertainties

  12. Application of multifractal wavelet analysis to spontaneous fermentation processes

    CERN Document Server

    Ibarra-Junquera, V; Escalante-Minakata, P; Rosu, H C

    2007-01-01

    An algorithm is presented here to get more detailed information, of mixed culture type, based exclusively on the biomass concentrations data for fermentation processes. The analysis is performed having available only the on-line measurements of the redox potential. It is a two-step procedure which includes an Artificial Neural Network (ANN) that relates the redox potential to the biomass concentrations in the first step. Next, a multifractal wavelet analysis is performed using the biomass estimates of the process. In this context, our results show that the redox potential is a valuable indicator of microorganism metabolic activity during the spontaneous fermentation. In this paper, the detailed design of the multifractal wavelet analysis is presented, as well as its direct experimental application at the laboratory level

  13. Profile of central research and application laboratory of Aǧrı İbrahim Çeçen University

    Science.gov (United States)

    Türkoǧlu, Emir Alper; Kurt, Murat; Tabay, Dilruba

    2016-04-01

    Aǧrı İbrahim Çeçen University built a central research and application laboratory (CRAL) in the east of Turkey. The CRAL possesses 7 research and analysis laboratories, 12 experts and researchers, 8 standard rooms for guest researchers, a restaurant, a conference hall, a meeting room, a prey room and a computer laboratory. The CRAL aims certain collaborations between researchers, experts, clinicians and educators in the areas of biotechnology, bioimagining, food safety & quality, omic sciences such as genomics, proteomics and metallomics. It also intends to develop sustainable solutions in agriculture and animal husbandry, promote public health quality, collect scientific knowledge and keep it for future generations, contribute scientific awareness of all stratums of society, provide consulting for small initiatives and industries. It has been collaborated several scientific foundations since 2011.

  14. Application of Xenopus laevis in ecotoxicology (I)--Introduction and quality control of laboratory animal

    Institute of Scientific and Technical Information of China (English)

    QIN Zhanfen; XU Xiaobai

    2006-01-01

    The aim of the series of papers is to discuss the application of Xenopus laevis, as model animal in biology, in ecotoxicology. X. laevis as model animal is wildly used in biological study and has provided a lot of relating data because of many advantages, such as living in water and being easily maintained, laying eggs in the whole year, and externally fertilizing and developing. Embryos and larvae of X. laevis like other amphibians are directly exposed in the aquatic environment and sensitive to pollutants. In addition, sex differentiation and sex organ development of X. laevis are sensitive to sex hormones and endocrine disruptors with sex hormone activities, which enable X. laevis to be used in studies on sex hormone disruption and reproductive toxicity of endocrine disruptors. Metamorphic development of X. laevis is very sensitive to thyroid hormones and thyroid disruptors, which enables X. laevis to be used for evaluating thyroid disruptors. Also, X. laevis ecotoxicology can be linked with amphibian population declines and malformed frog occurrence, being one of the hotspots in ecology. Thus, more and more laboratories have introduced X. laevis to ecotoxicological study. The quality of laboratory animals correlates with scientificity and reliability of results from animal experiments. It is especially important for toxicology. Quality control of X. laevis involving several factors such as water and food is discussed in this paper.

  15. Laboratory projects using inquiry-based learning: an application to a practical inorganic course

    Directory of Open Access Journals (Sweden)

    José G. Carriazo

    2011-01-01

    Full Text Available This paper reports how laboratory projects (LP coupled to inquiry-based learning (IBL were implemented in a practical inorganic chemistry course. Several coordination compounds have been successfully synthesised by students according to the proposed topics by the LP-IBL junction, and the chemistry of a number of metals has been studied. Qualitative data were collected from written reports, oral presentations, lab-notebook reviews and personal discussions with the students through an experimental course with undergraduate second-year students at the Universidad Nacional de Colombia during the last 5 years. Positive skills production was observed by combining LP and IBL. Conceptual, practical, interpretational, constructional (questions, explanations, hypotheses, communicational, environmental and application abilities were revealed by the students throughout the experimental course.

  16. Application of the observational approach to environmental restoration at the Oak Ridge National Laboratory

    International Nuclear Information System (INIS)

    Martin Marietta Energy Systems, Inc., (Energy Systems) manages the Oak Ridge National Laboratory (ORNL) for the US Department of Energy (DOE). Since ORNL's beginning in the 1940's, a variety of solid and liquid low-level radioactive waste, hazardous waste, and mixed waste has been generated. These wastes primarily have been disposed of on-site by shallow land burial, which has caused the contamination of soil, surface water, sediments, and groundwater. The Environmental Restoration Program (ERP) was initiated to remediate this legacy of contamination and to eliminate the associated risk to the public and the environment. In an effort to streamline the process and accelerate remediation activities, DOE, EPA, and TDEC agreed to utilize the Observational Approach in order to reduce time and cost and to use limited resources more effectively and efficiently. This paper briefly explains the Observational Approach, discusses its use in long-range planning and Remedial Investigations, and describes several specific applications

  17. New 100 mm Gun Assembly Installation at Lawrence Livermore National Laboratory High Explosives Applications Facility

    Energy Technology Data Exchange (ETDEWEB)

    Vandersall, K S; Lee, R A; Chiao, P I; Garcia, F; Travis, J O; Forbes, J W

    2003-10-28

    A new 100mm gun assembly was recently installed and tested at Lawrence Livermore National Laboratories located in the High Explosives Applications Facility (HEAF). Thiot Ingenierie performed the design of the replacement barrel, based on improvements to the initial design. This design incorporated barrel and breech sections forged from CLARM series high-strength alloys obtained from Tecphy Corporation and machined by Manufacture de Forage. Part of the improvement of the design was implementing a laser alignment system for quick and accurate barrel alignment checks. This laser is also used to align the target assembly. This paper will detail the design changes incorporated into the installation, the testing process, and future direction of research for the new gun.

  18. Application of synthetic peptides in development of a serologic method for laboratory diagnosis of schistosomiasis mansoni

    Directory of Open Access Journals (Sweden)

    Edward José de Oliveira

    2006-10-01

    Full Text Available The immunoreactivity of seven peptides synthesized from Schistosoma mansoni proteins, was evaluated by dot-blot and ELISA assays using two different sensitization methodologies. The best results were obtained on wells of the Costar 3590 microplates coated with peptides P1, P2, P3, P6, and P7 using conventional methodology. The signals increased considerably (p < 0.0003 on wells sensitized with P1 to P6 using alternative methodology. In contrast, the well coated with peptide P7 presented lower signal when compared with conventional methodology (p = 0.0019. These results, establish the basis for the application of synthetic peptides for laboratory diagnosis of schistosomiasis mansoni.

  19. Systems Studies Department FY 78 activity report. Volume 2. Systems analysis. [Sandia Laboratories, Livermore

    Energy Technology Data Exchange (ETDEWEB)

    Gold, T.S.

    1979-02-01

    The Systems Studies Department at Sandia Laboratories Livermore (SLL) has two primary responsibilities: to provide computational and mathematical services and to perform systems analysis studies. This document (Volume 2) describes the FY Systems Analysis highlights. The description is an unclassified overview of activities and is not complete or exhaustive. The objective of the systems analysis activities is to evaluate the relative value of alternative concepts and systems. SLL systems analysis activities reflect Sandia Laboratory programs and in 1978 consisted of study efforts in three areas: national security: evaluations of strategic, theater, and navy nuclear weapons issues; energy technology: particularly in support of Sandia's solar thermal programs; and nuclear fuel cycle physical security: a special project conducted for the Nuclear Regulatory Commission. Highlights of these activities are described in the following sections. 7 figures. (RWR)

  20. Summary Report of Laboratory Critical Experiment Analyses Performed for the Disposal Criticality Analysis Methodology

    Energy Technology Data Exchange (ETDEWEB)

    J. Scaglione

    1999-09-09

    This report, ''Summary Report of Laboratory Critical Experiment Analyses Performed for the Disposal Criticality Analysis Methodology'', contains a summary of the laboratory critical experiment (LCE) analyses used to support the validation of the disposal criticality analysis methodology. The objective of this report is to present a summary of the LCE analyses' results. These results demonstrate the ability of MCNP to accurately predict the critical multiplication factor (keff) for fuel with different configurations. Results from the LCE evaluations will support the development and validation of the criticality models used in the disposal criticality analysis methodology. These models and their validation have been discussed in the ''Disposal Criticality Analysis Methodology Topical Report'' (CRWMS M&O 1998a).

  1. Data analysis and graphing in an introductory physics laboratory: spreadsheet versus statistics suite

    OpenAIRE

    Peterlin, Primoz

    2010-01-01

    Two methods of data analysis are compared: spreadsheet software and a statistics software suite. Their use is compared analyzing data collected in three selected experiments taken from an introductory physics laboratory, which include a linear dependence, a non-linear dependence, and a histogram. The merits of each method are compared.

  2. Safety analysis report of uranium dioxide fuel laboratory, Nuclear Research Centre Inchas, Egypt

    International Nuclear Information System (INIS)

    In the Nuclear Research Center Inchas a uranium dioxide fuel laboratory is planned and built by the AEA Cairo (Atomic Energy Authority). The layout of this fuel lab and the programmatical contents are subject to the bilaterial cooperation between Egypt and the Federal Republic of Germany. In this report the safety analysis as basic items for the approval procedure are started in detail. (orig.)

  3. Forensic Analysis of Canine DNA Samples in the Undergraduate Biochemistry Laboratory

    Science.gov (United States)

    Carson, Tobin M.; Bradley, Sharonda Q.; Fekete, Brenda L.; Millard, Julie T.; LaRiviere, Frederick J.

    2009-01-01

    Recent advances in canine genomics have allowed the development of highly distinguishing methods of analysis for both nuclear and mitochondrial DNA. We describe a laboratory exercise suitable for an undergraduate biochemistry course in which the polymerase chain reaction is used to amplify hypervariable regions of DNA from dog hair and saliva…

  4. Microfluidic Gel Electrophoresis in the Undergraduate Laboratory Applied to Food Analysis

    Science.gov (United States)

    Chao, Tzu-Chiao; Bhattacharya, Sanchari; Ros, Alexandra

    2012-01-01

    A microfluidics-based laboratory experiment for the analysis of DNA fragments in an analytical undergraduate course is presented. The experiment is set within the context of food species identification via amplified DNA fragments. The students are provided with berry samples from which they extract DNA and perform polymerase chain reaction (PCR)…

  5. An Inexpensive Electrodeposition Device and Its Use in a Quantitative Analysis Laboratory Exercise

    Science.gov (United States)

    Parker, Richard H.

    2011-01-01

    An experimental procedure, using an apparatus that is easy to construct, was developed to incorporate a quantitative electrogravimetric determination of the solution nickel content into an undergraduate or advanced high school quantitative analysis laboratory. This procedure produces results comparable to the procedure used for the gravimetric…

  6. Analysis of Dextromethorphan in Cough Drops and Syrups: A Medicinal Chemistry Laboratory

    Science.gov (United States)

    Hamilton, Todd M.; Wiseman, Frank L., Jr.

    2009-01-01

    Fluorescence spectroscopy is used to determine the quantity of dextromethorphan hydrobromide (DM) in over-the-counter (OTC) cough drops and syrups. This experiment is appropriate for an undergraduate medicinal chemistry laboratory course when studying OTC medicines and active ingredients. Students prepare the cough drops and syrups for analysis,…

  7. Analysis of a p53 Mutation Associated with Cancer Susceptibility for Biochemistry and Genetic Laboratory Courses

    Science.gov (United States)

    Soto-Cruz, Isabel; Legorreta-Herrera, Martha

    2009-01-01

    We have devised and implemented a module for an upper division undergraduate laboratory based on the amplification and analysis of a p53 polymorphism associated with cancer susceptibility. First, students collected a drop of peripheral blood cells using a sterile sting and then used FTA cards to extract the genomic DNA. The p53 region is then PCR…

  8. Data Analysis and Graphing in an Introductory Physics Laboratory: Spreadsheet versus Statistics Suite

    Science.gov (United States)

    Peterlin, Primoz

    2010-01-01

    Two methods of data analysis are compared: spreadsheet software and a statistics software suite. Their use is compared analysing data collected in three selected experiments taken from an introductory physics laboratory, which include a linear dependence, a nonlinear dependence and a histogram. The merits of each method are compared. (Contains 7…

  9. Column Chromatography Analysis of Brain Tissue: An Advanced Laboratory Exercise for Neuroscience Majors

    OpenAIRE

    Church, William H.

    2005-01-01

    Neurochemical analysis of discrete brain structures in experimental animals provides important information on synthesis, release, and metabolism changes following behavioral or pharmacological experimental manipulations. Quantitation of neurotransmitters and their metabolites following unilateral drug injections can be carried out using standard chromatographic equipment typically found in most undergraduate analytical laboratories. This article describes an experiment done in a six session (...

  10. [SWOT analysis of laboratory certification and accreditation on detection of parasitic diseases].

    Science.gov (United States)

    Xiong, Yan-hong; Zheng, Bin

    2014-04-01

    This study analyzes the strength, weakness, opportunity and threat (SWOT) of laboratory certification and accreditation on detection of parasitic diseases by SWOT analysis comprehensively, and it puts forward some development strategies specifically, in order to provide some indicative references for the further development. PMID:25051844

  11. [SWOT analysis of laboratory certification and accreditation on detection of parasitic diseases].

    Science.gov (United States)

    Xiong, Yan-hong; Zheng, Bin

    2014-04-01

    This study analyzes the strength, weakness, opportunity and threat (SWOT) of laboratory certification and accreditation on detection of parasitic diseases by SWOT analysis comprehensively, and it puts forward some development strategies specifically, in order to provide some indicative references for the further development.

  12. Summative Mass Analysis of Algal Biomass - Integration of Analytical Procedures: Laboratory Analytical Procedure (LAP)

    Energy Technology Data Exchange (ETDEWEB)

    Laurens, L. M. L.

    2013-12-01

    This procedure guides the integration of laboratory analytical procedures to measure algal biomass constituents in an unambiguous manner and ultimately achieve mass balance closure for algal biomass samples. Many of these methods build on years of research in algal biomass analysis.

  13. Idaho National Laboratory Quarterly Performance Analysis for the 2nd Quarter FY 2015

    Energy Technology Data Exchange (ETDEWEB)

    Mitchell, Lisbeth A. [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2015-04-01

    This report is published quarterly by the Idaho National Laboratory (INL) Quality and Performance Management Organization. The Department of Energy (DOE) Occurrence Reporting and Processing System (ORPS), as prescribed in DOE Order 232.2, “Occurrence Reporting and Processing of Operations Information,” requires a quarterly analysis of events, both reportable and not reportable, for the previous 12 months. This report is the analysis of events for the 2nd Qtr FY-15.

  14. Idaho National Laboratory Quarterly Performance Analysis - 3rd Quarter FY2014

    Energy Technology Data Exchange (ETDEWEB)

    Lisbeth A. Mitchell

    2014-09-01

    This report is published quarterly by the Idaho National Laboratory (INL) Performance Assurance Organization. The Department of Energy (DOE) Occurrence Reporting and Processing System (ORPS), as prescribed in DOE Order 232.2, “Occurrence Reporting and Processing of Operations Information,” requires a quarterly analysis of events, both reportable and not reportable, for the previous 12 months. This report is the analysis of occurrence reports and other non-reportable issues identified at INL from July 2013 through June 2014.

  15. RILARA: Ibero-American laboratories network of radioactivity analysis in food

    International Nuclear Information System (INIS)

    The Ibero-American Laboratories Network of Radioactivity Analysis in Food (RILARA), is a thematic network that was established in the year 2007 with the financial support of the Ibero-American Program of Science and Technology for Development (CYTED). The network brings together laboratories from Argentina, Brazil, Cuba, Ecuador, Spain, Mexico, Peru and Venezuela. The main objective of thematic networks is the transfer of knowledge among the research groups and to foster the cooperation as a working method. Their mission is to create a collaboration framework that allows in the future developing new common actions. The main objective of RILARA is to guarantee the radioactive innocuousness in foodstuffs, to protect consumer's health. Besides, the network aims to facilitate the international trade among Ibero-American countries, by strengthening technical cooperation of radioactivity analysis laboratories in food and by maintaining a continuous exchange of information related to the topic. This paper presents how this network was conceived, its objectives and specific goals. Also actions taken to achieve a stable and continuous interaction among the Ibero-American laboratories controlling radioactivity in food are specified. The completion of these actions is expected to provide technological transfer among countries/Institutions and staff methodology training at developing laboratories. (author)

  16. A tracking system for laboratory mice to support medical researchers in behavioral analysis.

    Science.gov (United States)

    Macrì, S; Mainetti, L; Patrono, L; Pieretti, S; Secco, A; Sergi, I

    2015-08-01

    The behavioral analysis of laboratory mice plays a key role in several medical and scientific research areas, such as biology, toxicology, pharmacology, and so on. Important information on mice behavior and their reaction to a particular stimulus is deduced from a careful analysis of their movements. Moreover, behavioral analysis of genetically modified mice allows obtaining important information about particular genes, phenotypes or drug effects. The techniques commonly adopted to support such analysis have many limitations, which make the related systems particularly ineffective. Currently, the engineering community is working to explore innovative identification and sensing technologies to develop new tracking systems able to guarantee benefits to animals' behavior analysis. This work presents a tracking solution based on passive Radio Frequency Identification Technology (RFID) in Ultra High Frequency (UHF) band. Much emphasis is given to the software component of the system, based on a Web-oriented solution, able to process the raw tracking data coming from a hardware system, and offer 2D and 3D tracking information as well as reports and dashboards about mice behavior. The system has been widely tested using laboratory mice and compared with an automated video-tracking software (i.e., EthoVision). The obtained results have demonstrated the effectiveness and reliability of the proposed solution, which is able to correctly detect the events occurring in the animals' cage, and to offer a complete and user-friendly tool to support researchers in behavioral analysis of laboratory mice. PMID:26737401

  17. PREFACE: Dielectrics 2009: Measurement Analysis and Applications

    Science.gov (United States)

    Vaughan, Alun; Williams, Graham

    2009-07-01

    The conference Dielectrics 2009: Measurements, Analysis and Applications represents a significant milestone in the evolution of dielectrics research in the UK. It is reasonable to state that the academic study of dielectrics has led to many fundamental advances and that dielectric materials underpin the modern world in devices ranging from field effect transistors, which operate at extremely high fields, albeit low voltages, to the high voltage plants that provide the energy that powers our economy. The origins of the Dielectrics Group of the Institute of Physics (IOP), which organized this conference, can be traced directly back to the early 1960s, when Professor Mansel Davies was conducting research into the dielectric relaxation behaviour of polar liquids and solids at The Edward Davies Chemical Laboratories of the University College of Wales, Aberystwyth. He was already well-known internationally for his studies of molecular structure and bonding of small molecules, using infra-red-spectroscopy, and of the physical properties of hydrogen-bonded liquids and solids, using thermodynamic methods. Dielectric spectroscopy was a fairly new area for him and he realized that opportunities for scientists in the UK to gather together and discuss their research in this developing area of physical chemistry/chemical physics were very limited. He conceived the idea of forming a Dielectrics Discussion Group (DDG), which would act as a meeting point and provide a platform for dielectrics research in the UK and beyond and, as a result, a two-day Meeting was convened in the spring of 1968 at Gregynog Hall of the University of Wales, near Newtown, Montgomeryshire. It was organized by Mansel Davies, Alun Price and Graham Williams, all physical chemists from the UCW, Aberystwyth. Fifty scientists attended, being a mix of physical chemists, theoretical chemists, physicists, electrical engineers, polymer and materials scientists, all from the UK, except Dr Brendan Scaife of Trinity

  18. Physical Sciences Laboratory (PSL)

    Data.gov (United States)

    Federal Laboratory Consortium — PNNL's Physical Sciences Laboratory (PSL) houses 22 research laboratories for conducting a wide-range of research including catalyst formulation, chemical analysis,...

  19. Earth Viewing Applications Laboratory (EVAL). Dedicated payload, standard test rack payload, sensor modifications

    Science.gov (United States)

    1976-01-01

    The preliminary analysis of strawman earth-viewing shuttle sortie payloads begun with the partial spacelab payload was analyzed. The payloads analyzed represent the two extremes of shuttle sortie application payloads: a full shuttle sortie payload dedicated to earth-viewing applications, and a small structure payload which can fly on a space available basis with another primary shuttle payload such as a free flying satellite. The intent of the dedicated mission analysis was to configure an ambitious, but feasible, payload; which, while rich in scientific return, would also stress the system and reveal any deficiences or problem areas in mission planning, support equipment, and operations. Conversely, the intent of the small structure payload was to demonstrate the ease with which a small, simple, flexible payload can be accommodated on shuttle flights.

  20. Web Applications of Bibliometrics and Link Analysis

    Directory of Open Access Journals (Sweden)

    Faribourz Droudi

    2010-04-01

    Full Text Available The present study aims to introduce and analyze bibliometric application within Web and also to expounds on the status of link analysis in order to point out its application with respect to the existing web-based information sources. Findings indicate that bibliometrics could have required application in the area of digital resources available through Net. Link analysis is a process by which one could make statistical analysis of correlation between hyperlinks and therefore understand the accuracy, veracity and efficacy of citations within a digital document. Link analysis, in effect, is counted as a part of information ranking algorithm within the web environment. The number, linkage and quality of given links to a website are of utmost importance for ranking/status in the Web. The tools applied in this topic include, page ranking strategy, link analysis algorithm, latent semantic indexing and the classical input-output model. The present study analyzes Big Web and Small Web link analysis and explains the means for utilizing web charts in order to better understand the link analysis process.

  1. Web Application Comprehension Based on Dependence Analysis

    Institute of Scientific and Technical Information of China (English)

    WU Jun-hua; XU Bao-wen; JIANG Ji-xiang

    2004-01-01

    Many research indicate a lot of money and time are spent on maintaining and modifying program delivered.So the policies to support program comprehension are very important.Program comprehension is a crucial and difficult task.Insufficient design, illogical code structure, short documents will enhance the comprehensive difficulty.Developing Web application is usually a process with quick implementation and delivery.In addition, generally a Web application is coded by combining mark language statements with some embedded applets.Such programming mode affects comprehension of Web applications disadvantageously.This paper proposes a method to improving understanding Web by dependence analysis and slice technology.

  2. Performance of laboratories in speciation analysis in seafood – Case of methylmercury and inorganic arsenic

    DEFF Research Database (Denmark)

    Baer, Ines; Baxter, Malcolm; Devesa, Vicenta;

    2011-01-01

    seafood. In IMEP-109 only EU National Reference Laboratories (NRL) took part, while IMEP-30 was open to all laboratories. In this article only methylmercury and inorganic arsenic analysis will be discussed, as these appear generally to be more problematic measurands. They are also particularly interesting...... to legislators, as no maximum limits have been set yet for them in European legislation. The aim of the two ILCs was to produce more information to help tackling this issue. The results of the two exercises were pooled together, evaluated, and compared with former ILC projects for methylmercury and...

  3. Stress corrosion cracking in steam turbine disks: analysis of field and laboratory data. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Eason, E.D.

    1985-05-01

    The field data and related laboratory data from many investigators were analyzed to identify the key variables and quantify their effects on stress corrosion cracking of turbine disks. Beginning with over 35 potential variables, pattern recognition and transformation analysis techniques were used to find and characterize the most important variables. The transformation analysis technique was also used to identify laboratory environments that are comparable to the field and to check for lab-to-lab differences in measured crack growth rate. Field data were also analyzed separately, using transformation analysis and order statistics to determine the effects of variables and produce statistical distributions of crack growth rate and failure rate with time. Models were constructed for the field and laboratory data to combine data from many sources and test conditions and to quantify the key variable effects. Two, three, and four variable models were calibrated to the available data. The four variable model is capable of correlating stress corrosion data for 19 low alloy steels with negligible increase in scatter compared to NiCrMoV data. The three variable model describes the behavior of disk steels in the field and comparable laboratory environments. 42 refs., 39 figs., 10 tabs.

  4. Environmental applications of the particle analysis system

    Energy Technology Data Exchange (ETDEWEB)

    Moritz, E.J.; Hoffman, C.R.

    1993-09-28

    This study demonstrates the applicability of particle counting technology for analysis of various water treatment systems at the Rocky Flats Plant. The Particle Analysis System described in this study determined the water quality of samples from environmental remediation, stormwater treatment, and drinking water treatment operations. Samples were measured in either discrete or on-line mode. This data showed filtration efficiencies, particle counts, particle size distributions, and real-time treatment system performance. Particle counting proved more sensitive than the turbidimetric measurement technique commonly used by the water treatment industry. Particle counting is a two-dimensional measurement of counts and sizes, whereas turbidity is a one-dimensional measurement of water clarity. Samples showing identical turbidities could be distinguished easily with the Particle Analysis System. The Particle Analysis System proved to be an efficient and reliable water quality measurement tool, and it is applicable to a variety of water treatment systems at the Rocky Flats Plant.

  5. Analysis of Flood Hazards for the Materials and Fuels Complex at the Idaho National Laboratory Site

    Energy Technology Data Exchange (ETDEWEB)

    Skaggs, Richard; Breithaupt, Stephen A.; Waichler, Scott R.; Kim, Taeyun; Ward, Duane L.

    2010-11-01

    Researchers at Pacific Northwest National Laboratory conducted a flood hazard analysis for the Materials and Fuels Complex (MFC) site located at the Idaho National Laboratory (INL) site in southeastern Idaho. The general approach for the analysis was to determine the maximum water elevation levels associated with the design-basis flood (DBFL) and compare them to the floor elevations at critical building locations. Two DBFLs for the MFC site were developed using different precipitation inputs: probable maximum precipitation (PMP) and 10,000 year recurrence interval precipitation. Both precipitation inputs were used to drive a watershed runoff model for the surrounding upland basins and the MFC site. Outflows modeled with the Hydrologic Engineering Centers Hydrologic Modeling System were input to the Hydrologic Engineering Centers River Analysis System hydrodynamic flood routing model.

  6. Analysis Methods for Water Quality Evaluation, Applied in Environmental Laboratory, ICIA

    Directory of Open Access Journals (Sweden)

    ROMAN Cecilia

    2009-08-01

    Full Text Available Due to human activities, global scale pollution of the environment has increased significantly in the last twocenturies. In the last decades, it was acknowledged that population health is strictly connected with environment quality.As the influence of anthropogenic factors on water sources quality increased, the water quality assessment has a rolethat’s become more and more important. Laboratory for Environment Analysis (LAM from Research Institute forAnalytical Instrumentation is accredited according to the SR EN ISO/CEI 17025:2005, by Romanian AccreditationAssociation and has all the required resourced for quality analysis of environmental samples. Analytical techniquesused in the Laboratory for Environment Analysis for water quality determination are: Gas Chromatography, LiquidChromatography, Ion Chromatography, Flame or Furnace Atomic Absorption Spectrometry, Inductively CoupledOptical Emission Spectrometry, UV/VIS Spectrophotometry, pHmetry, Potentiometry, Conductometry, Titrimetry andGravimetry.

  7. Clean laboratories and clean rooms for analysis of radionuclides and trace elements

    International Nuclear Information System (INIS)

    requirements are summarized of clean laboratory environments, for construction materials as well as for materials used during routine analysis, maintenance, and pitfalls in the analysis of radionuclides and elements at trace- and ultra trace levels. Current methodologies and practices are described for planning the installation of a clean environment as well as protocols for maximizing the benefit-to-cost ratio and for achieving QA/QC. Special emphasis is given to the analysis of radionuclides, and measurement of trace, minor and major elements using nuclear and related analytical techniques such as NAA and XRF. Also included are papers contributed by experts from India, the Netherlands, the United States of America and the IAEA Laboratories, Seibersdorf

  8. Laboratory measurements of super-resolving Toraldo pupils for radio astronomical applications

    CERN Document Server

    Olmi, Luca; Cresci, Luca; D'Agostino, Francesco; Migliozzi, Massimo; Mugnai, Daniela; Natale, Enzo; Nesti, Renzo; Panella, Dario; Stefani, Lorenzo

    2016-01-01

    The concept of super-resolution refers to various methods for improving the angular resolution of an optical imaging system beyond the classical diffraction limit. Although several techniques to narrow the central lobe of the illumination Point Spread Function have been developed in optical microscopy, most of these methods cannot be implemented on astronomical telescopes. A possible exception is represented by the variable transmittance filters, also known as "Toraldo Pupils" (TPs) since they were introduced for the first time by G. Toraldo di Francia in 1952. In the microwave range, the first successful laboratory test of TPs was performed in 2003. These first results suggested that TPs could represent a viable approach to achieve super-resolution in Radio Astronomy. We have therefore started a project devoted to a more exhaustive analysis of TPs and how they could be implemented on a radio telescope. In the present work we report on the results of extensive microwave measurements, using TPs with different ...

  9. Quality assurance testing of an explosives trace analysis laboratory--further improvements to include peroxide explosives.

    Science.gov (United States)

    Crowson, Andrew; Cawthorne, Richard

    2012-12-01

    The Forensic Explosives Laboratory (FEL) operates within the Defence Science and Technology Laboratory (DSTL) which is part of the UK Government Ministry of Defence (MOD). The FEL provides support and advice to the Home Office and UK police forces on matters relating to the criminal misuse of explosives. During 1989 the FEL established a weekly quality assurance testing regime in its explosives trace analysis laboratory. The purpose of the regime is to prevent the accumulation of explosives traces within the laboratory at levels that could, if other precautions failed, result in the contamination of samples and controls. Designated areas within the laboratory are swabbed using cotton wool swabs moistened with ethanol:water mixture, in equal amounts. The swabs are then extracted, cleaned up and analysed using Gas Chromatography with Thermal Energy Analyser detectors or Liquid Chromatography with triple quadrupole Mass Spectrometry. This paper follows on from two previous published papers which described the regime and summarised results from approximately 14years of tests. This paper presents results from the subsequent 7years setting them within the context of previous results. It also discusses further improvements made to the systems and procedures and the inclusion of quality assurance sampling for the peroxide explosives TATP and HMTD. Monitoring samples taken from surfaces within the trace laboratories and trace vehicle examination bay have, with few exceptions, revealed only low levels of contamination, predominantly of RDX. Analysis of the control swabs, processed alongside the monitoring swabs, has demonstrated that in this environment the risk of forensic sample contamination, assuming all the relevant anti-contamination procedures have been followed, is so small that it is considered to be negligible. The monitoring regime has also been valuable in assessing the process of continuous improvement, allowing sources of contamination transfer into the trace

  10. Job and Task Analysis project at Brookhaven National Laboratory's high flux beam reactor

    International Nuclear Information System (INIS)

    The presenter discussed the Job and Task Analysis (JTA) project conducted at Brookhaven National Laboratory's High Flux Beam Reactor (HFBR). The project's goal was to provide JTA guidelines for use by DOE contractors, then, using the guidelines conduct a JTA for the reactor operator and supervisor positions at the HFBR. Details of the job analysis and job description preparation as well as details of the task selection and task analysis were given. Post JTA improvements to the HFBR training programs were covered. The presentation concluded with a listing of the costs and impacts of the project

  11. Numerical analysis for heating and infiltration test at model deposition hole in underground hard rock laboratory

    International Nuclear Information System (INIS)

    Various insitu tests for the safety disposal of radioactive waste are conducted in the Swedish underground hard rock laboratory. Canister Retrieval Test (CRT) is a heating and infiltration test at a full-scale deposition hole. In this paper, we conducted thermo-hydro-mechanical coupled analysis for CRT and compared the results with measured data. The evolution of temperature and relative humidity and the profiles of bentonite's dry density were well reproduced by numerical analysis. Sensitivity analysis was also conducted in order to investigate the influence of hydraulic properties of surrounding rock mass on re-saturation behavior of bentonite in a deposition hole. (author)

  12. Application of a learning model in a traditional engineering classroom and laboratory

    Science.gov (United States)

    Brown, Cordelia Magalene

    The purpose of this dissertation research was to develop a learning model. This three-phase learning model involved administering pre-assessment inventories, facilitating collaborative exercises, and evaluating learning experiences. This dissertation explores the potential effects the learning model might have on course performance and overall academic performance. It focuses on potential relationships between course performance and learning style preferences data, demographics, and level of participation in phases of the learning model. It also examines relationships between confidence levels and the performance of course objectives. The first and final phases were applied to an introductory Electrical Engineering course. The second phase was applied to selected sections of the course. In the initial phase, students in all sections of the course were administered the Index of Learning Styles Questionnaire, a Myers-Briggs Type Indicator, and a pre-laboratory evaluation. In the second phase of the learning model, the students in the selected sections participated in weekly learning sessions. The weekly learning sessions provided students with practice problem sets and a structured environment to collaboratively practice problems and discuss course concepts. The final phase of the learning model evaluated the performance of students in both environments. From the application of the learning model, the effects that various instructional methods would have on students' performance in a laboratory type of environment were investigated. Overall, students that participated in the weekly learning sessions earned grades that were comparable or better than non-participants. Participants and non-participants in the weekly learning sessions with the Myers-Briggs Type Indicator (MBTI) Engineering Type (INTJ or ISTJ) earned about the same grade. Participants in the weekly learning sessions with types other than MBTI Engineering Type outperformed their peers of the same MBTI type

  13. Establishment of a clean laboratory for ultra trace analysis of nuclear materials in safeguards environmental samples

    Energy Technology Data Exchange (ETDEWEB)

    Hanzawa, Yukiko; Magara, Masaaki; Watanabe, Kazuo [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment] (and others)

    2003-01-01

    The Japan Atomic Energy Research Institute has established a cleanroom facility with cleanliness of ISO Class 5: the Clean Laboratory for Environmental Analysis and Research (CLEAR). It was designed to be used for the analysis of nuclear materials in environmental samples mainly for the safeguards, in addition to the Comprehensive Nuclear-Test-Ban Treaty verification and research on environmental sciences. The CLEAR facility was designed to meet conflicting requirements of a cleanroom and for handling of nuclear materials according to Japanese regulations, i.e., to avoid contamination from outside and to contain nuclear materials inside the facility. This facility has been intended to be used for wet chemical treatment, instrumental analysis and particle handling. A fume-hood to provide a clean work surface for handling of nuclear materials was specially designed. Much attention was paid to the selection of construction materials for use to corrosive acids. The performance of the cleanroom and analytical background in the laboratory are discussed. This facility has satisfactory specification required for joining the International Atomic Energy Agency Network of Analytical Laboratories. It can be concluded that the CLEAR facility enables analysis of ultra trace amounts of nuclear materials at sub-pictogram level in environmental samples. (author)

  14. Improvement of analytical capabilities of neutron activation analysis laboratory at the Colombian Geological Survey

    Science.gov (United States)

    Parrado, G.; Cañón, Y.; Peña, M.; Sierra, O.; Porras, A.; Alonso, D.; Herrera, D. C.; Orozco, J.

    2016-07-01

    The Neutron Activation Analysis (NAA) laboratory at the Colombian Geological Survey has developed a technique for multi-elemental analysis of soil and plant matrices, based on Instrumental Neutron Activation Analysis (INAA) using the comparator method. In order to evaluate the analytical capabilities of the technique, the laboratory has been participating in inter-comparison tests organized by Wepal (Wageningen Evaluating Programs for Analytical Laboratories). In this work, the experimental procedure and results for the multi-elemental analysis of four soil and four plant samples during participation in the first round on 2015 of Wepal proficiency test are presented. Only elements with radioactive isotopes with medium and long half-lives have been evaluated, 15 elements for soils (As, Ce, Co, Cr, Cs, Fe, K, La, Na, Rb, Sb, Sc, Th, U and Zn) and 7 elements for plants (Br, Co, Cr, Fe, K, Na and Zn). The performance assessment by Wepal based on Z-score distributions showed that most results obtained |Z-scores| ≤ 3.

  15. Analysis of Thermal-Conductivity Measurement Data from International Comparison of National Laboratories

    Science.gov (United States)

    Hay, B.; Zarr, R.; Stacey, C.; Lira-Cortes, L.; Hammerschmidt, U.; Sokolov, N.; Zhang, J.; Filtz, J.-R.; Fleurence, N.

    2013-05-01

    For the first time under the auspices of the Bureau International des Poids et Mesures (BIPM), seven national metrology institutes (NMIs) participated in an international interlaboratory comparison on thermal-conductivity measurements by the guarded hot-plate method. Measurements were conducted successively by all participants on the same set of specimens of insulating materials (mineral wool and expanded polystyrene) at temperatures ranging from 10 °C to 40 °C, according to the International Standard ISO 8302. This protocol aims to minimize issues of material variability by circulating the same pairs of specimens among the laboratories following the strict format of a round-robin test program. This comparison is a pilot study which is intended as a first stage for future key comparisons between NMIs. The descriptive analysis of obtained results shows good agreement between laboratories for the mineral wool (MW) specimens and the thicker specimens of expanded polystyrene (EPS), with relative deviations within the uncertainties of measurement. A positive drift of thermal-conductivity values, which has appeared progressively during the comparison process, seems to be correlated with the size of the metering area of the guarded hot plates used. A statistical analysis was applied to repeated thermal-conductivity measurements at 23 °C, to identify anomalous and outlying data, to assess the within- and between-laboratory variability, and to evaluate the participant laboratories' performance.

  16. Sampling and Analysis Instruction for the Demolition of the Masonry Block for the 108-F Biological Laboratory

    International Nuclear Information System (INIS)

    This sampling and analysis instruction (SAI) has been prepared to clearly define the sampling and analysis activities to be performed in support of the demolition and disposition (or disposal) of the 108-F Biological Laboratory masonry block walls

  17. Noncommutative analysis, operator theory and applications

    CERN Document Server

    Cipriani, Fabio; Colombo, Fabrizio; Guido, Daniele; Sabadini, Irene; Sauvageot, Jean-Luc

    2016-01-01

    This book illustrates several aspects of the current research activity in operator theory, operator algebras and applications in various areas of mathematics and mathematical physics. It is addressed to specialists but also to graduate students in several fields including global analysis, Schur analysis, complex analysis, C*-algebras, noncommutative geometry, operator algebras, operator theory and their applications. Contributors: F. Arici, S. Bernstein, V. Bolotnikov, J. Bourgain, P. Cerejeiras, F. Cipriani, F. Colombo, F. D'Andrea, G. Dell'Antonio, M. Elin, U. Franz, D. Guido, T. Isola, A. Kula, L.E. Labuschagne, G. Landi, W.A. Majewski, I. Sabadini, J.-L. Sauvageot, D. Shoikhet, A. Skalski, H. de Snoo, D. C. Struppa, N. Vieira, D.V. Voiculescu, and H. Woracek.

  18. Risk analysis enhancement via computer applications

    International Nuclear Information System (INIS)

    Since the development of Reliability Centered Maintenance (RCM) by the airline industry, there has been various alternative approaches to applying this methodology to the nuclear power industry. Some of the alternatives were developed in order to shift the focus of analyses on plant specific concerns but the greatest majority of alternatives were developed in attempt to reduce the effort required to conduct a RCM analysis on as large of scale as a nuclear power station. Computer applications have not only reduced the amount of analysis time but have also produced more consistent results, provided an effective working RCM analysis tool and made it possible to automate a Living Program. During the development of a RCM Program at South Carolina Electric and Gas' V.C. Summer Nuclear Station (VCSNS), computer applications were developed. 6 figs, 1 tab

  19. Applicability of PIXE for multielemental analysis in a biomedical application

    International Nuclear Information System (INIS)

    The applicability of PIXE for multielemental analysis is demonstrated. The method is used in a major systematic study on hair samples using one target analysis. The pathological state considered is agitated elderly people. The main elements examined are S, K, Ca, Fe, Co, Ni, Cu, Zn, Se, Br, Hg and Pb. The minimum detectable limits are 1-10 ppm using 180 μg of dry hair at 25 μe irradiations for elements between K and Br. The significance of differences between the hair elements in control populations and patients suffering from the pathological conditions are investigated. Investigations of possible linear and multiple-correlations between elements in each population are made. The work indicates that some elements do exhibit variation with pathological state, and the multielement PIXE analysis gives useful information about the subject. (author). 13 refs, 4 figs, 6 tabs

  20. RIPOSTE: a framework for improving the design and analysis of laboratory-based research.

    Science.gov (United States)

    Masca, Nicholas Gd; Hensor, Elizabeth Ma; Cornelius, Victoria R; Buffa, Francesca M; Marriott, Helen M; Eales, James M; Messenger, Michael P; Anderson, Amy E; Boot, Chris; Bunce, Catey; Goldin, Robert D; Harris, Jessica; Hinchliffe, Rod F; Junaid, Hiba; Kingston, Shaun; Martin-Ruiz, Carmen; Nelson, Christopher P; Peacock, Janet; Seed, Paul T; Shinkins, Bethany; Staples, Karl J; Toombs, Jamie; Wright, Adam Ka; Teare, M Dawn

    2015-01-01

    Lack of reproducibility is an ongoing problem in some areas of the biomedical sciences. Poor experimental design and a failure to engage with experienced statisticians at key stages in the design and analysis of experiments are two factors that contribute to this problem. The RIPOSTE (Reducing IrreProducibility in labOratory STudiEs) framework has been developed to support early and regular discussions between scientists and statisticians in order to improve the design, conduct and analysis of laboratory studies and, therefore, to reduce irreproducibility. This framework is intended for use during the early stages of a research project, when specific questions or hypotheses are proposed. The essential points within the framework are explained and illustrated using three examples (a medical equipment test, a macrophage study and a gene expression study). Sound study design minimises the possibility of bias being introduced into experiments and leads to higher quality research with more reproducible results.

  1. Laboratory verification of on-line lithium analysis using ultraviolet absorption spectrometry

    International Nuclear Information System (INIS)

    Several laboratory experiments were performed to evaluate the capability of absorption spectrometry in the ultraviolet-visible wavelength range with the objective of developing methods for on-line analysis of lithium directly in the primary coolant of Pressurized Water Reactors using optical probes. Although initial laboratory tests seemed to indicate that lithium could be detected using primary absorption (detection of natural spectra unassisted by reagents), subsequent field tests demonstrated that no primary absorption spectra existed for lithium in the ultraviolet-visible wavelength range. A second series of tests that were recently conducted did, however, confirm results reported in the literature to the effect that reagents were available that will react with lithium to form chelates that possess detectable absorption and fluorescent signatures. These results point to the possible use of secondary techniques for on-line analysis of lithium

  2. Bioelectrical impedance analysis as a laboratory activity: At the interface of physics and the body

    Science.gov (United States)

    Mylott, Elliot; Kutschera, Ellynne; Widenhorn, Ralf

    2014-05-01

    We present a novel laboratory activity on RC circuits aimed at introductory physics students in life-science majors. The activity teaches principles of RC circuits by connecting ac-circuit concepts to bioelectrical impedance analysis (BIA) using a custom-designed educational BIA device. The activity shows how a BIA device works and how current, voltage, and impedance measurements relate to bioelectrical characteristics of the human body. From this, useful observations can be made including body water, fat-free mass, and body fat percentage. The laboratory is engaging to pre-health and life-science students, as well as engineering students who are given the opportunity to observe electrical components and construction of a commonly used biomedical device. Electrical concepts investigated include alternating current, electrical potential, resistance, capacitance, impedance, frequency, phase shift, device design, and the use of such topics in biomedical analysis.

  3. Quality system of the Chemical Analysis Laboratory to fulfill the requirements with Certification Organizations

    International Nuclear Information System (INIS)

    In the present work was described the Quality System established in the Chemical Analysis Department to fulfill with the Organization requirements, personnel, measurement equipment, calibration, working procedures, etc. to get official acknowledgment by the National Assurance System for Testing laboratories, dependent of the General Standards Direction. There are described the available resources, the performance and control of each of one principal points of the system. (Author)

  4. Space Shuttle 750 psi Helium Regulator Application on Mars Science Laboratory Propulsion

    Science.gov (United States)

    Mizukami, Masashi; Yankura, George; Rust, Thomas; Anderson, John R.; Dien, Anthony; Garda, Hoshang; Bezer, Mary Ann; Johnson, David; Arndt, Scott

    2009-01-01

    The Mars Science Laboratory (MSL) is NASA's next major mission to Mars, to be launched in September 2009. It is a nuclear powered rover designed for a long duration mission, with an extensive suite of science instruments. The descent and landing uses a unique 'skycrane' concept, where a rocket-powered descent stage decelerates the vehicle, hovers over the ground, lowers the rover to the ground on a bridle, then flies a safe distance away for disposal. This descent stage uses a regulated hydrazine propulsion system. Performance requirements for the pressure regulator were very demanding, with a wide range of flow rates and tight regulated pressure band. These indicated that a piloted regulator would be needed, which are notoriously complex, and time available for development was short. Coincidentally, it was found that the helium regulator used in the Space Shuttle Orbiter main propulsion system came very close to meeting MSL requirements. However, the type was out of production, and fabricating new units would incur long lead times and technical risk. Therefore, the Space Shuttle program graciously furnished three units for use by MSL. Minor modifications were made, and the units were carefully tuned to MSL requirements. Some of the personnel involved had built and tested the original shuttle units. Delta qualification for MSL application was successfully conducted on one of the units. A pyrovalve slam start and shock test was conducted. Dynamic performance analyses for the new application were conducted, using sophisticated tools developed for Shuttle. Because the MSL regulator is a refurbished Shuttle flight regulator, it will be the only part of MSL which has physically already been in space.

  5. Hydraulic manipulator design, analysis, and control at Oak Ridge National Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Kress, R.L.; Jansen, J.F. [Oak Ridge National Lab., TN (United States). Robotics and Process Systems Div.; Love, L.J. [Oak Ridge Inst. for Science and Education, TN (United States); Basher, A.M.H. [South Carolina State Univ., Orangeburg, SC (United States)

    1996-09-01

    To meet the increased payload capacities demanded by present-day tasks, manipulator designers have turned to hydraulics as a means of actuation. Hydraulics have always been the actuator of choice when designing heavy-life construction and mining equipment such as bulldozers, backhoes, and tunneling devices. In order to successfully design, build, and deploy a new hydraulic manipulator (or subsystem) sophisticated modeling, analysis, and control experiments are usually needed. To support the development and deployment of new hydraulic manipulators Oak Ridge National Laboratory (ORNL) has outfitted a significant experimental laboratory and has developed the software capability for research into hydraulic manipulators, hydraulic actuators, hydraulic systems, modeling of hydraulic systems, and hydraulic controls. The hydraulics laboratory at ORNL has three different manipulators. First is a 6-Degree-of-Freedom (6-DoF), multi-planer, teleoperated, flexible controls test bed used for the development of waste tank clean-up manipulator controls, thermal studies, system characterization, and manipulator tracking. Finally, is a human amplifier test bed used for the development of an entire new class of teleoperated systems. To compliment the hardware in the hydraulics laboratory, ORNL has developed a hydraulics simulation capability including a custom package to model the hydraulic systems and manipulators for performance studies and control development. This paper outlines the history of hydraulic manipulator developments at ORNL, describes the hydraulics laboratory, discusses the use of the equipment within the laboratory, and presents some of the initial results from experiments and modeling associated with these hydraulic manipulators. Included are some of the results from the development of the human amplifier/de-amplifier concepts, the characterization of the thermal sensitivity of hydraulic systems, and end-point tracking accuracy studies. Experimental and analytical

  6. Hydraulic manipulator design, analysis, and control at Oak Ridge National Laboratory

    International Nuclear Information System (INIS)

    To meet the increased payload capacities demanded by present-day tasks, manipulator designers have turned to hydraulics as a means of actuation. Hydraulics have always been the actuator of choice when designing heavy-life construction and mining equipment such as bulldozers, backhoes, and tunneling devices. In order to successfully design, build, and deploy a new hydraulic manipulator (or subsystem) sophisticated modeling, analysis, and control experiments are usually needed. To support the development and deployment of new hydraulic manipulators Oak Ridge National Laboratory (ORNL) has outfitted a significant experimental laboratory and has developed the software capability for research into hydraulic manipulators, hydraulic actuators, hydraulic systems, modeling of hydraulic systems, and hydraulic controls. The hydraulics laboratory at ORNL has three different manipulators. First is a 6-Degree-of-Freedom (6-DoF), multi-planer, teleoperated, flexible controls test bed used for the development of waste tank clean-up manipulator controls, thermal studies, system characterization, and manipulator tracking. Finally, is a human amplifier test bed used for the development of an entire new class of teleoperated systems. To compliment the hardware in the hydraulics laboratory, ORNL has developed a hydraulics simulation capability including a custom package to model the hydraulic systems and manipulators for performance studies and control development. This paper outlines the history of hydraulic manipulator developments at ORNL, describes the hydraulics laboratory, discusses the use of the equipment within the laboratory, and presents some of the initial results from experiments and modeling associated with these hydraulic manipulators. Included are some of the results from the development of the human amplifier/de-amplifier concepts, the characterization of the thermal sensitivity of hydraulic systems, and end-point tracking accuracy studies. Experimental and analytical

  7. Physico-Geometrical Kinetics of Solid-State Reactions in an Undergraduate Thermal Analysis Laboratory

    Science.gov (United States)

    Koga, Nobuyoshi; Goshi, Yuri; Yoshikawa, Masahiro; Tatsuoka, Tomoyuki

    2014-01-01

    An undergraduate kinetic experiment of the thermal decomposition of solids by microscopic observation and thermal analysis was developed by investigating a suitable reaction, applicable techniques of thermal analysis and microscopic observation, and a reliable kinetic calculation method. The thermal decomposition of sodium hydrogen carbonate is…

  8. Urinary 8-oxo-7,8-dihydro-2'-deoxyguanosine analysis by an improved ELISA: An inter-laboratory comparison study.

    Science.gov (United States)

    Rossner, Pavel; Orhan, Hilmi; Koppen, Gudrun; Sakai, Kazuo; Santella, Regina M; Ambroz, Antonin; Rossnerova, Andrea; Sram, Radim J; Ciganek, Miroslav; Neca, Jiri; Arzuk, Ege; Mutlu, Neliye; Cooke, Marcus S

    2016-06-01

    ELISA is commonly used for the detection of urinary 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG), a marker of whole body oxidative stress. However, the method has been criticized for high inter-laboratory variability and poor agreement with chromatographic techniques. We performed an inter-laboratory comparison of 8-oxodG assessed in 30 urine samples and a urine spiked with four different concentrations of 8-oxodG by ELISA using standardized experimental conditions, including: sample pre-treatment with solid-phase extraction (SPE), performing analysis using a commercial kit from a single manufacturer and strict temperature control during the assay. We further compared the ELISA results with high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) and performed tentative identification of compounds that may contribute to the discrepancy between both methods. For all but one participating laboratory (Data 1) we observed consistent ELISA results lying mostly within 1SD of the mean 8-oxodG concentration. Mean 8-oxodG levels assessed by ELISA correlated with the data obtained by HPLC-MS/MS (R=0.679, panalysis (R=0.749, pHPLC-MS/MS. Omitting these samples further improved inter-methodology agreement (R=0.869, p<0.001). In the outliers with high 8-oxodG estimates various aromatic and heterocyclic compounds were tentatively identified using gas chromatography-mass spectrometry (GC-MS). Application of authentic standards revealed the presence of saccharides, including d-glucose and d-galactose as putative interfering substances. In summary, assay standardization improved ELISA inter-laboratory agreement, although some variability is still observed. There are still compounds contributing to overestimation of 8-oxodG by ELISA, but only in some urine samples. Thus, despite significant improvement, ELISA still should not be considered a robust alternative to chromatographic techniques. PMID:27016072

  9. Practical Application of Electrochemical Nitrate Sensor under Laboratory and Forest Nursery Conditions

    Science.gov (United States)

    Caron, William-Olivier; Lamhamedi, Mohammed S.; Viens, Jeff; Messaddeq, Younès

    2016-01-01

    The reduction of nitrate leaching to ensure greater protection of groundwater quality has become a global issue. The development of new technologies for more accurate dosing of nitrates helps optimize fertilization programs. This paper presents the practical application of a newly developed electrochemical sensor designed for in situ quantification of nitrate. To our knowledge, this paper is the first to report the use of electrochemical impedance to determine nitrate concentrations in growing media under forest nursery conditions. Using impedance measurements, the sensor has been tested in laboratory and compared to colorimetric measurements of the nitrate. The developed sensor has been used in water-saturated growing medium and showed good correlation to certified methods, even in samples obtained over a multi-ion fertilisation season. A linear and significant relationship was observed between the resistance and the concentration of nitrates (R2 = 0.972), for a range of concentrations of nitrates. We also observed stability of the sensor after exposure of one month to the real environmental conditions of the forest nursery. PMID:27483266

  10. Emerging technologies in education and training: applications for the laboratory animal science community.

    Science.gov (United States)

    Ketelhut, Diane Jass; Niemi, Steven M

    2007-01-01

    This article examines several new and exciting communication technologies. Many of the technologies were developed by the entertainment industry; however, other industries are adopting and modifying them for their own needs. These new technologies allow people to collaborate across distance and time and to learn in simulated work contexts. The article explores the potential utility of these technologies for advancing laboratory animal care and use through better education and training. Descriptions include emerging technologies such as augmented reality and multi-user virtual environments, which offer new approaches with different capabilities. Augmented reality interfaces, characterized by the use of handheld computers to infuse the virtual world into the real one, result in deeply immersive simulations. In these simulations, users can access virtual resources and communicate with real and virtual participants. Multi-user virtual environments enable multiple participants to simultaneously access computer-based three-dimensional virtual spaces, called "worlds," and to interact with digital tools. They allow for authentic experiences that promote collaboration, mentoring, and communication. Because individuals may learn or train differently, it is advantageous to combine the capabilities of these technologies and applications with more traditional methods to increase the number of students who are served by using current methods alone. The use of these technologies in animal care and use programs can create detailed training and education environments that allow students to learn the procedures more effectively, teachers to assess their progress more objectively, and researchers to gain insights into animal care. PMID:17420537

  11. Intraoral laser welding: ultrastructural and mechanical analysis to compare laboratory laser and dental laser.

    Science.gov (United States)

    Fornaini, Carlo; Passaretti, Francesca; Villa, Elena; Rocca, Jean-Paul; Merigo, Elisabetta; Vescovi, Paolo; Meleti, Marco; Manfredi, Maddalena; Nammour, Samir

    2011-07-01

    The Nd:YAG laser has been used since 1970 in dental laboratories to weld metals on dental prostheses. Recently in several clinical cases, we have suggested that the Nd:YAG laser device commonly utilized in the dental office could be used to repair broken fixed, removable and orthodontic prostheses and to weld metals directly in the mouth. The aim of this work was to evaluate, using scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and dynamic mechanical analysis (DMA), the quality of the weld and its mechanical strength, comparing a device normally used in dental laboratory and a device normally used in the dental office for oral surgery, the same as that described for intraoral welding. Metal plates of a Co-Cr-Mo dental alloy and steel orthodontic wires were subjected to four welding procedures: welding without filler metal using the laboratory laser, welding with filler metal using the laboratory laser, welding without filler metal using the office laser, and welding with filler metal using the office laser. The welded materials were then analysed by SEM, EDS and DMA. SEM analysis did not show significant differences between the samples although the plates welded using the office laser without filler metal showed a greater number of fissures than the other samples. EDS microanalysis of the welding zone showed a homogeneous composition of the metals. Mechanical tests showed similar elastic behaviours of the samples, with minimal differences between the samples welded with the two devices. No wire broke even under the maximum force applied by the analyser. This study seems to demonstrate that the welds produced using the office Nd:YAG laser device and the laboratory Nd:YAG laser device, as analysed by SEM, EDS and DMA, showed minimal and nonsignificant differences, although these findings need to be confirmed using a greater number of samples. PMID:20437262

  12. Codesign Analysis of a Computer Graphics Application

    DEFF Research Database (Denmark)

    Madsen, Jan; Brage, Jens P.

    1996-01-01

    This paper describes a codesign case study where a computer graphics application is examined with the intention to speed up its execution. The application is specified as a C program, and is characterized by the lack of a simple compute-intensive kernel. The hardware/software partitioning is based...... on information obtained from software profiling and the resulting design is validated through cosimulation. The achieved speed-up is estimated based on an analysis of profiling information from different sets of input data and various architectural options....

  13. Applications of random process excursion analysis

    CERN Document Server

    Brainina, Irina S

    2013-01-01

    This book addresses one of the key problems in signal processing, the problem of identifying statistical properties of excursions in a random process in order to simplify the theoretical analysis and make it suitable for engineering applications. Precise and approximate formulas are explained, which are relatively simple and can be used for engineering applications such as the design of devices which can overcome the high initial uncertainty of the self-training period. The information presented in the monograph can be used to implement adaptive signal processing devices capable of d

  14. COED Transactions, Vol. XI, No. 12, December 1979. Some Alternate Applications of Microprocessor Trainers in Support of Undergraduate Laboratories.

    Science.gov (United States)

    Mitchell, Eugene E., Ed.

    Ways are described for the use of a microprocessor trainer in undergraduate laboratories. Listed are microcomputer applications that have been used as demonstrations and which provide signals for other experiments which are not related to microprocessors. Information and figures are provided for methods to do the following: direct generation of…

  15. Bridging the gap between sample collection and laboratory analysis: using dried blood spots to identify human exposure to chemical agents

    Science.gov (United States)

    Hamelin, Elizabeth I.; Blake, Thomas A.; Perez, Jonas W.; Crow, Brian S.; Shaner, Rebecca L.; Coleman, Rebecca M.; Johnson, Rudolph C.

    2016-05-01

    Public health response to large scale chemical emergencies presents logistical challenges for sample collection, transport, and analysis. Diagnostic methods used to identify and determine exposure to chemical warfare agents, toxins, and poisons traditionally involve blood collection by phlebotomists, cold transport of biomedical samples, and costly sample preparation techniques. Use of dried blood spots, which consist of dried blood on an FDA-approved substrate, can increase analyte stability, decrease infection hazard for those handling samples, greatly reduce the cost of shipping/storing samples by removing the need for refrigeration and cold chain transportation, and be self-prepared by potentially exposed individuals using a simple finger prick and blood spot compatible paper. Our laboratory has developed clinical assays to detect human exposures to nerve agents through the analysis of specific protein adducts and metabolites, for which a simple extraction from a dried blood spot is sufficient for removing matrix interferents and attaining sensitivities on par with traditional sampling methods. The use of dried blood spots can bridge the gap between the laboratory and the field allowing for large scale sample collection with minimal impact on hospital resources while maintaining sensitivity, specificity, traceability, and quality requirements for both clinical and forensic applications.

  16. Application of Synchrotron-XRF to Quantitative Elemental Aerosol Analysis

    Science.gov (United States)

    Cliff, S. S.; Perry, K. D.; Jimenez-Cruz, M. P.; Cahill, T. A.

    2001-12-01

    Recent advances in synchrotron x-ray fluorescence (s-XRF) analysis of atmospheric particulate matter have improved elemental sensitivity, quantification and time-resolution. Analysis of both filter and impactor based aerosol samples have yielded quantitative data for elements Na-U, if present, in ambient aerosols. The increased sensitivity allows higher time resolution through either smaller spatial analysis of time-resolved impactor samples or shorter sample time-integration using filter-based samplers. Of particular interest is the application of s-XRF to aerodynamically sized rotating substrate impactor samples. These samplers, 8- and 3-stage DRUM's, have the ability to aerodynamically size-classify particles in either 8 or 3 categories, respectively. In addition, the rotating substrate allows time-resolved analysis of samples with little or no loss in elemental sensitivity. The s-XRF analyses are performed on Beamline 10.3.1 at the Advanced Light Source-Lawrence Berkeley Laboratory (ALS-LBL). Beamline 10.3.1, originally designed for materials analysis, has been supplemented with aerosol analysis capability from several substrate options. Typical analysis involves Teflon filters or Mylar impaction substrates. The newly formed Participating Research Team (PRT) for beamline 10.3.1 encompasses both global climate and material science research. The s-XRF capabilities of beamline 10.3.1 are now available for PRT researchers and independent investigators through a proposal process to the ALS. The technology, application to aerosol research and monitoring, and availability of the facility to the aerosol research community will be presented.

  17. The Instrument Synthesis for Analysis Laboratory at the Goddard Space Flight Center

    Science.gov (United States)

    Wood, H. John

    2000-01-01

    The objectives of the Instrument Synthesis and Analysis laboratory (ISAL) are to: 1) Provide a rapid and sustainable instrument development environment with clear efficient processes and tools, re-usable models and skilled engineers. 2) Provide a capability for quick and efficient trade studies of instrument architectures and concepts. 3) Streamline and optimize instrument systems design for the entire life cycle, including cost and technology assessment. 4) Provide detailed multi-disciplinary modeling and analysis for phase C/D design validation and for operational investigations.

  18. Idaho National Laboratory Quarterly Performance Analysis - 2nd Quarter FY2014

    Energy Technology Data Exchange (ETDEWEB)

    Lisbeth A. Mitchell

    2014-06-01

    This report is published quarterly by the Idaho National Laboratory (INL) Performance Assurance Organization. The Department of Energy Occurrence Reporting and Processing System (ORPS), as prescribed in DOE Order 232.2, “Occurrence Reporting and Processing of Operations Information,” requires a quarterly analysis of events, both reportable and not reportable, for the previous 12 months. This report is the analysis of occurrence reports and other deficiency reports (including not reportable events) identified at INL from January 2014 through March 2014.

  19. Corrosion analysis of decommissioned carbon steel waste water tanks at Brookhaven National Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Soo, P.; Roberts, T.C.

    1995-07-01

    A corrosion analysis was carried out on available sections of carbon steels taken from two decommissioned radioactive waste water tanks at Brookhaven National Laboratory. One of the 100,000 gallon tanks suffered from a pinhole failure in the wall which was subsequently patched. From the analysis it was shown that this leak, and two adjacent leaks were initiated by a discarded copper heating coil that had been dropped into the tank during service. The failure mechanism is postulated to have been galvanic attack at points of contact between the tank structure and the coil. Other leaks in the two tanks are also described in this report.

  20. Isotherm Sensor Calibration Program for Mars Science Laboratory Heat Shield Flight Data Analysis

    Science.gov (United States)

    Santos, Jose A.; Oishi, Tomo; Martinez, Ed R.

    2011-01-01

    Seven instrumented sensor plugs were installed on the Mars Science Laboratory heat shield in December 2008 as part of the Mars Science Laboratory Entry, Descent, and Landing Instrumentation (MEDLI) project. These sensor plugs contain four in-depth thermocouples and one Hollow aErothermal Ablation and Temperature (HEAT) sensor. The HEAT sensor follows the time progression of a 700 C isotherm through the thickness of a thermal protection system (TPS) material. The data can be used to infer char depth and, when analyzed in conjunction with the thermocouple data, the thermal gradient through the TPS material can also be determined. However, the uncertainty on the isotherm value is not well defined. To address this uncertainty, a team at NASA Ames Research Center is carrying out a HEAT sensor calibration test program. The scope of this test program is described, and initial results from experiments conducted in the laboratory to study the isotherm temperature of the HEAT sensor are presented. Data from the laboratory tests indicate an isotherm temperature of 720 C 60 C. An overview of near term arc jet testing is also given, including preliminary data from 30.48cm 30.48cm PICA panels instrumented with two MEDLI sensor plugs and tested in the NASA Ames Panel Test Facility. Forward work includes analysis of the arc jet test data, including an evaluation of the isotherm value based on the instant in time when it reaches a thermocouple depth.

  1. Topics in mathematical analysis and applications

    CERN Document Server

    Tóth, László

    2014-01-01

    This volume presents significant advances in a number of theories and problems of Mathematical Analysis and its applications in disciplines such as Analytic Inequalities, Operator Theory, Functional Analysis, Approximation Theory, Functional Equations, Differential Equations, Wavelets, Discrete Mathematics and Mechanics. The contributions focus on recent developments and are written by eminent scientists from the international mathematical community. Special emphasis is given to new results that have been obtained in the above mentioned disciplines in which Nonlinear Analysis plays a central role. Some review papers published in this volume will be particularly useful for a broader readership in Mathematical Analysis, as well as for graduate students. An attempt is given to present all subjects in this volume in a unified and self-contained manner, to be particularly useful to the mathematical community.

  2. Applications Of Binary Image Analysis Techniques

    Science.gov (United States)

    Tropf, H.; Enderle, E.; Kammerer, H. P.

    1983-10-01

    After discussing the conditions where binary image analysis techniques can be used, three new applications of the fast binary image analysis system S.A.M. (Sensorsystem for Automation and Measurement) are reported: (1) The human view direction is measured at TV frame rate while the subject's head is free movable. (2) Industrial parts hanging on a moving conveyor are classified prior to spray painting by robot. (3) In automotive wheel assembly, the eccentricity of the wheel is minimized by turning the tyre relative to the rim in order to balance the eccentricity of the components.

  3. Compositional Data Analysis Theory and Applications

    CERN Document Server

    Pawlowsky-Glahn, Vera

    2011-01-01

    This book presents the state-of-the-art in compositional data analysis and will feature a collection of papers covering theory, applications to various fields of science and software. Areas covered will range from geology, biology, environmental sciences, forensic sciences, medicine and hydrology. Key features:Provides the state-of-the-art text in compositional data analysisCovers a variety of subject areas, from geology to medicineWritten by leading researchers in the fieldIs supported by a website featuring R code

  4. Distance training in robotics applications thanks to a proposal of remote laboratory

    OpenAIRE

    Martínez García, Herminio; Gámiz Caro, Juan; Domingo Peña, Joan; Grau Saldes, Antoni

    2008-01-01

    This paper describes the development of a remote laboratory in the area of automatic and robotic engineering. The laboratory is based on an educational platform around a robotic arm that allows emulating a practical laboratory in which engineering students can corroborate their theoretical results comparing them with the real paths traced by the robot. Thus, the research work presented in the article is directed towards the consolidation of concepts in the field of robotics and contr...

  5. Implementation of a remote laboratory for distance training in robotic applications

    OpenAIRE

    Martínez García, Herminio

    2015-01-01

    This paper describes the development of a remote laboratory in the area of automatic and robotic engineering. The laboratory is based on an educational platform around a robotic arm that allows emulating a practical laboratory in which engineering students can confirm their theoretical results comparing them with the real paths traced by the robot. Thus, the research work presented in the article is directed towards the adaptation of concepts in the field of robotics and control in a remote l...

  6. Selected industrial and environmental applications of neutron activation analysis

    International Nuclear Information System (INIS)

    A review of the applications of Instrumental Neutron Activation Analysis (INAA) in the industrial and environmental fields is given. Detection limits for different applications are also given. (author)

  7. Theory and applications of numerical analysis

    CERN Document Server

    Phillips, G M

    1996-01-01

    This text is a self-contained Second Edition, providing an introductory account of the main topics in numerical analysis. The book emphasizes both the theorems which show the underlying rigorous mathematics andthe algorithms which define precisely how to program the numerical methods. Both theoretical and practical examples are included.* a unique blend of theory and applications* two brand new chapters on eigenvalues and splines* inclusion of formal algorithms* numerous fully worked examples* a large number of problems, many with solutions

  8. Application of Wave Propagation to Pyroshock Analysis

    OpenAIRE

    Gherlone, M.; D. Lomario; M. Mattone; R.Ruotolo

    2004-01-01

    Pyroshocks are high frequency transients due to pyrotechnic devices used in aerospace engineering in order to deploy solar arrays and antennae, separate subsystems from the spacecraft or separate the spacecraft itself from the base stage booster; their prediction is usually complex and very time consuming.The aim of this article is to investigate on the application of the analysis of transmission of waves in elastic media in order to predict the dynamic response to pyroshocks. The work is com...

  9. Instrumental laboratories based on the analysis of butylated hydroxytoluene (BHT) and butylated hydroxyanisole (BHA)

    Science.gov (United States)

    Wiginton, John Franklin

    A semester-long series of instrumental analysis laboratory activities appropriate for advanced undergraduate and graduate students is described. The activities incorporate five analytical instruments commonly found in post-secondary educational, industrial, and governmental laboratories: a gas chromatograph with a flame ionization detector (GC), a gas chromatograph with a mass specific detector (GC/MS), a high-pressure liquid chromatograph with a UV-Visible detector (HPLC), a high-performance liquid chromatograph with a mass specific detector (LC/MS), and a nuclear magnetic resonance spectrometer (NMR). The series of activities utilizes two analytes, butylated hydroxytoluene (BHT) and butylated hydroxyanisole (BHA), which are qualitatively and quantitatively analyzed, then structurally characterized. The protocol for each laboratory activity directs students to accomplish a specific analysis in the most efficient manner, but leaves the actual procedure vague enough to give the student a chance to experiment with the instrument. Student success is assessed by two means, having the student submit a detailed journal-style lab report and a class-wide discussion regarding the development of experimental protocols and individual instrument capabilities and limitations.

  10. Improving food safety with accurate analysis by laboratories participating in proficiency testing programmes

    International Nuclear Information System (INIS)

    Full text: The certification of food products, either for export or internal consumption, requires an analysis as accurate as possible and proofs assuring that the results have a solid base. International food trade is a very sensible area of commerce and the sanitary barriers, including those for potentially toxic metals, are extremely strict. Countries with mutual recognition agreements (MRA) accept the certification of the exporter. Where MRA does not exist, the recipient country analyses the goods using their own sampling and analytical procedures. In some cases the results agree but do not in others. In the last situation the products are rejected and not allowed into the buying country with the consequent losses. Chile has a large international market for its seafood products. It has to comply, however, with regulations established by each importing country. One such requirement refers to the maximum admissible level of cadmium in molluscs, set by many countries at 1 mg/kg of Cd. Discrepancies between the Chilean and laboratories abroad arose in the past, resulting in many rejections of the products. Under these circumstances, the Chilean National Fisheries (SERNAPESCA) and the Chilean Nuclear Energy Commission (CCHEN) set up a proficiency test programme mandatory for all authorized laboratories for the certification of export seafood. CCHEN has the responsibility of all technical aspects of the programme, including the preparation and distribution of the materials and evaluation of the results submitted by the participants. After the first proficiency test, several laboratories had their authorization rescinded and, as an additional consequence, all the laboratories had to review and re-validate their analytical procedures. So far, three proficiency tests have been carried out and the response of the laboratories has noticeably improved with direct consequence in the decrease of rejections of the goods by the importers. This paper presents the details of the

  11. FEM applications to the analysis of passive solar wall elements

    Directory of Open Access Journals (Sweden)

    K. Lenik

    2010-11-01

    Full Text Available Purpose: The evaluation of heat propagation effectiveness through passive solar modules of different construction in relation to selected process conditions by means of computer simulation.Design/methodology/approach: The analysis of heat transfer through laminar structures in transient states by means of FEM and its verification on small scale models during laboratory tests.Findings: The paper presents the application of FEM and its methodology of computations for the established conditions on both sides of laminar structures specific for solar passive-thermal modules. The results are compared to small scale experimental results. The verification of the analysis leads from particular conclusions concerning the procedure of simulations towards general comments on the application of real modules.Research limitations/implications: The research has been carried out by means of software suitable for field analysis with some limitations to 3D which have been specified but their influence on usefulness of results is only minor. The verification on a small scale model is necessary and reliable in terms of the research consistence.Practical implications: Finite Element Method exploited in the applied methodology of investigation can be successfully used as a tool to examine energy transfer at considerations on different laminar structures. The subject of the research, i.e. solar passive modules confirmed their usefulness for energy demand reduction but with some identified restrictions.Originality/value: The use of small scale solar modules to verify FEM analysis and the combination of both analyses to determine the applicability of modules in real conditions of solar energy conversion in different building objects.

  12. Composites Characterization Laboratory

    Data.gov (United States)

    Federal Laboratory Consortium — The purpose of the Composites Characterization Laboratory is to investigate new and/or modified matrix materials and fibers for advanced composite applications both...

  13. Analysis of 2015 Meteorological Data from the Bettis Atomic Power Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Aluzzi, F. J. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2016-02-19

    The Bettis Atomic Power Laboratory (Bettis) in West Miffin, PA is required to estimate the effects of hypothetical emissions of radiological material from its facility by the U.S. Environmental Protection Agency (EPA). An atmospheric dispersion model known as CAP88, which was developed and approved by the EPA for such purposes, is used by Bettis to meet this requirement. CAP88 calculations over a given time period are based on statistical data on the meteorological conditions for that period. The Bettis facility has an on-site meteorological tower which takes atmospheric measurements at a frequency ideal for EPA regulatory model input. However, an independent analysis and processing of the meteorological data from the site tower is required to derive a data set appropriate for use in the CAP88 model. The National Atmospheric Release Advisory Center (NARAC) was contracted by the Bettis Atomic Power Laboratory to process the on-site meteorological data for the calendar year 2015.

  14. Diffusion Experiments in Opalinus Clay: Laboratory, Large-Scale Diffusion Experiments and Microscale Analysis by RBS.

    Energy Technology Data Exchange (ETDEWEB)

    Garcia-Gutierrez, M.; Alonso de los Rios, U.; Missana, T.; Cormenzana, J.L.; Mingarro, M.; Morejon, J.; Gil, P.

    2008-08-06

    The Opalinus Clay (OPA) formation in the Zurcher Weiland (Switzerland) is a potential host rock for a repository for high-level radioactive waste. Samples collected in the Mont Terri Underground Rock Laboratory (URL), where the OPA formation is located at a depth between -200 and -300 m below the surface, were used to study the radionuclide diffusion in clay materials. Classical laboratory essays and a novel experimental set-up for large-scale diffusion experiments were performed together to a novel application of the nuclear ion beam technique Rutherford Backscattering Spectrometry (RBS), to understand the transport properties of the OPA and to enhance the methodologies used for in situ diffusion experiments. Through-Diffusion and In-Diffusion conventional laboratory diffusion experiments were carried out with HTO, 36{sup C}l-, I-, 22{sup N}a, 75{sup S}e, 85{sup S}r, 233{sup U}, 137{sup C}s, 60{sup C}o and 152{sup E}u. Large-scale diffusion experiments were performed with HTO, 36{sup C}l, and 85{sup S}r, and new experiments with 60{sup C}o, 137{sup C}s and 152{sup E}u are ongoing. Diffusion experiments with RBS technique were done with Sr, Re, U and Eu. (Author) 38 refs.

  15. The application of data from proficiency testing to laboratory accreditation according to ISO 17025

    DEFF Research Database (Denmark)

    Heydorn, Kaj

    2008-01-01

    Current methods of testing laboratories for their proficiency in reporting correct measurement results are liable to substantial errors of the 2nd kind. This means that laboratories with deflated uncertainties are accepted as proficient, even though their reported measurement results pave the way...

  16. Introducing sequential managed aquifer recharge technology (SMART) - From laboratory to full-scale application.

    Science.gov (United States)

    Regnery, Julia; Wing, Alexandre D; Kautz, Jessica; Drewes, Jörg E

    2016-07-01

    Previous lab-scale studies demonstrated that stimulating the indigenous soil microbial community of groundwater recharge systems by manipulating the availability of biodegradable organic carbon (BDOC) and establishing sequential redox conditions in the subsurface resulted in enhanced removal of compounds with redox-dependent removal behavior such as trace organic chemicals. The aim of this study is to advance this concept from laboratory to full-scale application by introducing sequential managed aquifer recharge technology (SMART). To validate the concept of SMART, a full-scale managed aquifer recharge (MAR) facility in Colorado was studied for three years that featured the proposed sequential configuration: A short riverbank filtration passage followed by subsequent re-aeration and artificial recharge and recovery. Our findings demonstrate that sequential subsurface treatment zones characterized by carbon-rich (>3 mg/L BDOC) to carbon-depleted (≤1 mg/L BDOC) and predominant oxic redox conditions can be established at full-scale MAR facilities adopting the SMART concept. The sequential configuration resulted in substantially improved trace organic chemical removal (i.e. higher biodegradation rate coefficients) for moderately biodegradable compounds compared to conventional MAR systems with extended travel times in an anoxic aquifer. Furthermore, sorption batch experiments with clay materials dispersed in the subsurface implied that sorptive processes might also play a role in the attenuation and retardation of chlorinated flame retardants during MAR. Hence, understanding key factors controlling trace organic chemical removal performance during SMART allows for systems to be engineered for optimal efficiency, resulting in improved removal of constituents at shorter subsurface travel times and a potentially reduced physical footprint of MAR installations. PMID:27037769

  17. Spectroscopic characterization of novel multilayer mirrors intended for astronomical and laboratory applications

    Science.gov (United States)

    Ragozin, Eugene N.; Mednikov, Konstantin N.; Pertsov, Andrei A.; Pirozhkov, Alexander S.; Reva, Anton A.; Shestov, Sergei V.; Ul'yanov, Artem S.; Vishnyakov, Eugene A.

    2009-05-01

    We report measurements of the reflection spectra of (i) concave (spherical and parabolic) Mo/Si, Mg/Si, and Al/Zr multilayer mirrors (MMs) intended for imaging solar spectroscopy in the framework of the TESIS/CORONAS-FOTON Satellite Project and of (ii) an aperiodic Mo/Si MM optimized for maximum uniform reflectivity in the 125-250 Å range intended for laboratory applications. The reflection spectra were measured in the configuration of a transmission grating spectrometer employing the radiation of a tungsten laser-driven plasma as the source. The function of detectors was fulfilled by backside-illuminated CCDs coated with Al or Zr/Si multilayer absorption filters. High-intensity second-order interference reflection peaks at wavelengths of about 160 Å were revealed in the reflection spectra of the 304-Å Mo/Si MMs. By contrast, the second-order reflection peak in the spectra of the new-generation narrow-band (~12 Å FWHM) 304-Å Mg/Si MMs is substantially depressed. Manifestations of the NEXAFS structure of the L2, 3 absorption edges of Al and Al2O3 were observed in the spectra recorded. The broadband Mo/Si MM was employed as the focusing element of spectrometers in experiments involving (i) the charge exchange of multiply charged ions with the donor atoms of a rare-gas jet; (ii) the spectroscopic characterization of a debris-free soft X-ray radiation source excited by Nd laser pulses in a Xe jet (iii) near-IR-to-soft-X-ray frequency conversion (double Doppler effect) occurring in the retroreflection from the relativistic electron plasma wake wave (flying mirror) driven by a multiterawatt laser in a pulsed helium jet.

  18. An application of operational modal analysis in modal filtering

    Energy Technology Data Exchange (ETDEWEB)

    Kurowski, Piotr; Mendrok, Krzysztof; Uhl, Tadeusz, E-mail: mendrok@agh.edu.pl [AGH University of Science and Technology in Krakow, Al. Mickiewicza 30, 30-059, Krakow (Poland)

    2011-07-19

    Modal filtration in the field of damage detection has many advantages, including: its autonomous operation (without the interaction of qualified staff), low computational cost and low sensitivity to changes in external conditions. However, the main drawback of this group of damage detection methods is its limited applicability to operational data. In this paper a method of modal filter formulation from the in-operational data is described. The basis for this approach is FRFs synthesis using knowledge of the operational modal model. For that purpose a method of operational mode shape scaling is described. This is based on the measurements of several FRFs of the object. The method is then applied to the construction of modal filters and modal filtration. Additionally, the study presents verification of the method using data obtained from simulation and laboratory experiments. Verification consisted of comparing the results of modal filtering based on classical experimental modal analysis with the results of the approach proposed in the work.

  19. Amchitka Island Environmental Analysis Phase 4 Actinide Analysis At Idaho National laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Gracy Elias

    2005-11-01

    Idaho National Laboratory (INL) provided support to Vanderbilt University and Consortium for Risk Evaluation with Stakeholder Participation (CRESP) in their activites, supported by the Department of Energy (DOE), to assess the impact of past nuclear testing at Amchitka Island on the ecosystem of the island and surrounding ocean. INL participated in this project in four phases. INL support in the first three phases is documented in Report # INL/EXT-05-00361. The details of INL participation in Phase 4 (sample results, Quality Control (QC) results, and other related quality assurance documents) are included in this report.

  20. Application of CO2 Snow Jet Cleaning in Conjunction with Laboratory Based Total Reflection X-Ray Fluorescence

    Science.gov (United States)

    Schmeling, M.; Burnett, D. S.; Allton, J. H.; Rodriquez, M.; Tripa, C. E.; Veryovkin, I. V.

    2013-01-01

    The Genesis mission was the first mission returning solar material to Earth since the Apollo program [1,2]. Unfortunately the return of the space craft on September 8, 2004 resulted in a crash landing, which shattered the samples into small fragments and exposed them to desert soil and other debris. Thus only small fragments of the original collectors are available, each having different degrees of surface contamination. Thorough surface cleaning is required to allow for subsequent analysis of solar wind material embedded within. An initial cleaning procedure was developed in coordination with Johnson Space Center which focused on removing larger sized particulates and a thin film organic contamination acquired during collection in space [3]. However, many of the samples have additional residues and more rigorous and/or innovative cleaning steps might be necessary. These cleaning steps must affect only the surface to avoid leaching and re-distribution of solar wind material from the bulk of the collectors. To aid in development and identification of the most appropriate cleaning procedures each sample has to be thoroughly inspected before and after each cleaning step. Laboratory based total reflection X-ray fluorescence (TXRF) spectrometry lends itself to this task as it is a non-destructive and surface sensitive analytical method permitting analysis of elements from aluminum onward present at and near the surface of a flat substrate [4]. The suitability of TXRF has been demonstrated for several Genesis solar wind samples before and after various cleaning methods including acid treatment, gas cluster ion beam, and CO2 snow jet [5 - 7]. The latter one is non-invasive and did show some promise on one sample [5]. To investigate the feasibility of CO2 snow jet cleaning further, several flown Genesis samples were selected to be characterized before and after CO2 snow application with sample 61052 being discussed below.

  1. Information theory applications for biological sequence analysis.

    Science.gov (United States)

    Vinga, Susana

    2014-05-01

    Information theory (IT) addresses the analysis of communication systems and has been widely applied in molecular biology. In particular, alignment-free sequence analysis and comparison greatly benefited from concepts derived from IT, such as entropy and mutual information. This review covers several aspects of IT applications, ranging from genome global analysis and comparison, including block-entropy estimation and resolution-free metrics based on iterative maps, to local analysis, comprising the classification of motifs, prediction of transcription factor binding sites and sequence characterization based on linguistic complexity and entropic profiles. IT has also been applied to high-level correlations that combine DNA, RNA or protein features with sequence-independent properties, such as gene mapping and phenotype analysis, and has also provided models based on communication systems theory to describe information transmission channels at the cell level and also during evolutionary processes. While not exhaustive, this review attempts to categorize existing methods and to indicate their relation with broader transversal topics such as genomic signatures, data compression and complexity, time series analysis and phylogenetic classification, providing a resource for future developments in this promising area.

  2. INTERNAL HAZARDS ANALYSIS FOR LICENSE APPLICATION

    Energy Technology Data Exchange (ETDEWEB)

    R.J. Garrett

    2005-02-17

    The purpose of this internal hazards analysis is to identify and document the internal hazards and potential initiating events associated with preclosure operations of the repository at Yucca Mountain. Internal hazards are those hazards presented by the operation of the facility and by its associated processes that can potentially lead to a radioactive release or cause a radiological hazard. In contrast to external hazards, internal hazards do not involve natural phenomena and external man-made hazards. This internal hazards analysis was performed in support of the preclosure safety analysis and the License Application for the Yucca Mountain Project. The methodology for this analysis provides a systematic means to identify internal hazards and potential initiating events that may result in a radiological hazard or radiological release during the repository preclosure period. These hazards are documented in tables of potential internal hazards and potential initiating events (Section 6.6) for input to the repository event sequence categorization process. The results of this analysis will undergo further screening and analysis based on the criteria that apply to the performance of event sequence analyses for the repository preclosure period. The evolving design of the repository will be re-evaluated periodically to ensure that internal hazards that have not been previously evaluated are identified.

  3. So These Numbers Really Mean Something? A Role Playing Scenario-Based Approach to the Undergraduate Instrumental Analysis Laboratory

    Science.gov (United States)

    Grannas, Amanda M.; Lagalante, Anthony F.

    2010-01-01

    A new curricular approach in our undergraduate second-year instrumental analysis laboratory was implemented. Students work collaboratively on scenarios in diverse fields including pharmaceuticals, forensics, gemology, art conservation, and environmental chemistry. Each laboratory section (approximately 12 students) is divided into three groups…

  4. Application of human error analysis to aviation and space operations

    Energy Technology Data Exchange (ETDEWEB)

    Nelson, W.R.

    1998-03-01

    For the past several years at the Idaho National Engineering and Environmental Laboratory (INEEL) the authors have been working to apply methods of human error analysis to the design of complex systems. They have focused on adapting human reliability analysis (HRA) methods that were developed for Probabilistic Safety Assessment (PSA) for application to system design. They are developing methods so that human errors can be systematically identified during system design, the potential consequences of each error can be assessed, and potential corrective actions (e.g. changes to system design or procedures) can be identified. The primary vehicle the authors have used to develop and apply these methods has been a series of projects sponsored by the National Aeronautics and Space Administration (NASA) to apply human error analysis to aviation operations. They are currently adapting their methods and tools of human error analysis to the domain of air traffic management (ATM) systems. Under the NASA-sponsored Advanced Air Traffic Technologies (AATT) program they are working to address issues of human reliability in the design of ATM systems to support the development of a free flight environment for commercial air traffic in the US. They are also currently testing the application of their human error analysis approach for space flight operations. They have developed a simplified model of the critical habitability functions for the space station Mir, and have used this model to assess the affects of system failures and human errors that have occurred in the wake of the collision incident last year. They are developing an approach so that lessons learned from Mir operations can be systematically applied to design and operation of long-term space missions such as the International Space Station (ISS) and the manned Mars mission.

  5. HYPERSPECTRAL HYPERION IMAGERY ANALYSIS AND ITS APPLICATION USING SPECTRAL ANALYSIS

    Directory of Open Access Journals (Sweden)

    W. Pervez

    2015-03-01

    Full Text Available Rapid advancement in remote sensing open new avenues to explore the hyperspectral Hyperion imagery pre-processing techniques, analysis and application for land use mapping. The hyperspectral data consists of 242 bands out of which 196 calibrated/useful bands are available for hyperspectral applications. Atmospheric correction applied to the hyperspectral calibrated bands make the data more useful for its further processing/ application. Principal component (PC analysis applied to the hyperspectral calibrated bands reduced the dimensionality of the data and it is found that 99% of the data is held in first 10 PCs. Feature extraction is one of the important application by using vegetation delineation and normalized difference vegetation index. The machine learning classifiers uses the technique to identify the pixels having significant difference in the spectral signature which is very useful for classification of an image. Supervised machine learning classifier technique has been used for classification of hyperspectral image which resulted in overall efficiency of 86.6703 and Kappa co-efficient of 0.7998.

  6. Applications of Short Message Service and WAP in Operating Remotely Triggered Laboratories

    Directory of Open Access Journals (Sweden)

    Ananda Maiti

    2011-11-01

    Full Text Available Mobile devices are becoming more powerful, reliable and common every year. Hence we can use mobile devices for conducting laboratory sessions in distance education. This paper discusses issues of integrating Short Message Service (SMS to operate instruments of hardware-based remotely triggered laboratories. Components of the system include searching an experiment, performing experiment, result handling, error handling and method of exchanging information. It is designed using the National Instruments (NI Laboratory Virtual Instrument Engineering Workbench (LabVIEW development system and web services. The scheme will enable students to conduct hardware experiments with mobile devices using SMS from anywhere and anytime.

  7. Chromatin Isolation and DNA Sequence Analysis in Large Undergraduate Laboratory Sections

    Science.gov (United States)

    Hagerman, Ann E.

    1999-10-01

    A pair of exercises that introduce undergraduate students to basic techniques and concepts of molecular biology and that are appropriate for classes with large enrollments are described. One exercise is a simple laboratory experiment in which chromatin is isolated from chicken liver and is resolved into histone proteins and DNA by ion-exchange chromatography. The other is a series of computer simulations that introduce DNA sequencing, mapping, and sequence analysis to the students. The final step of the simulation is submission of a sequence to a database on the World Wide Web for identification of the protein product of the gene.

  8. Analysis guide: criticality risks and their prevention in factories and laboratories

    International Nuclear Information System (INIS)

    This document first presents the nuclear criticality risks and prevention principles adopted in factories and laboratories, and recalls the basic security rule. Using diagrams, it introduces the recommended methodology for this rule, and, for each criticality control mode, parameters which influence the neutron assessment, and which must be taken into account in the analysis, typical failures to be investigated, and usual scenarios associated with these failures. More precisely, the following aspects and issues are discussed: security margin and sizing criteria, how to limit the consequences of a criticality accident, criticality detection and warning network, evacuation, intervention in case of a criticality accident

  9. Advanced Laboratory at Texas State University: Error Analysis, Experimental Design, and Research Experience for Undergraduates

    Science.gov (United States)

    Ventrice, Carl

    2009-04-01

    Physics is an experimental science. In other words, all physical laws are based on experimentally observable phenomena. Therefore, it is important that all physics students have an understanding of the limitations of certain experimental techniques and the associated errors associated with a particular measurement. The students in the Advanced Laboratory class at Texas State perform three detailed laboratory experiments during the semester and give an oral presentation at the end of the semester on a scientific topic of their choosing. The laboratory reports are written in the format of a ``Physical Review'' journal article. The experiments are chosen to give the students a detailed background in error analysis and experimental design. For instance, the first experiment performed in the spring 2009 semester is entitled Measurement of the local acceleration due to gravity in the RFM Technology and Physics Building. The goal of this experiment is to design and construct an instrument that is to be used to measure the local gravitational field in the Physics Building to an accuracy of ±0.005 m/s^2. In addition, at least one of the experiments chosen each semester involves the use of the research facilities within the physics department (e.g., microfabrication clean room, surface science lab, thin films lab, etc.), which gives the students experience working in a research environment.

  10. Laboratory Simulations of Local Winds in the Atmospheric Boundary Layer via Image Analysis

    Directory of Open Access Journals (Sweden)

    Monica Moroni

    2015-01-01

    Full Text Available In the atmospheric boundary layer, under high pressure conditions and negligible geostrophic winds, problems associated with pollution are the most critical. In this situation local winds play a major role in the evaluation of the atmospheric dynamics at small scales and in dispersion processes. These winds originate as a result of nonuniform heating of the soil, either when it is homogeneous or in discontinuous terrain in the presence of sea and/or slopes. Depending on the source of the thermal gradient, local winds are classified into convective boundary layer, sea and land breezes, urban heat islands, and slope currents. Local winds have been analyzed by (i simple analytical models; (ii numerical models; (iii field measurements; (iv laboratory measurements through which it is impossible to completely create the necessary similarities, but the parameters that determine the phenomenon can be controlled and each single wind can be separately analyzed. The present paper presents a summary of laboratory simulations of local winds neglecting synoptic winds and the effects of Coriolis force. Image analysis techniques appear suitable to fully describe both the individual phenomenon and the superposition of more than one local wind. Results do agree with other laboratory studies and numerical experiments.

  11. Estimation and uncertainty analysis of dose response in an inter-laboratory experiment

    Science.gov (United States)

    Toman, Blaza; Rösslein, Matthias; Elliott, John T.; Petersen, Elijah J.

    2016-02-01

    An inter-laboratory experiment for the evaluation of toxic effects of NH2-polystyrene nanoparticles on living human cancer cells was performed with five participating laboratories. Previously published results from nanocytoxicity assays are often contradictory, mostly due to challenges related to producing a reliable cytotoxicity assay protocol for use with nanomaterials. Specific challenges include reproducibility preparing nanoparticle dispersions, biological variability from testing living cell lines, and the potential for nano-related interference effects. In this experiment, such challenges were addressed by developing a detailed experimental protocol and using a specially designed 96-well plate layout which incorporated a range of control measurements to assess multiple factors such as nanomaterial interference, pipetting accuracy, cell seeding density, and instrument performance. Detailed data analysis of these control measurements showed that good control of the experiments was attained by all participants in most cases. The main measurement objective of the study was the estimation of a dose response relationship between concentration of the nanoparticles and metabolic activity of the living cells, under several experimental conditions. The dose curve estimation was achieved by imbedding a three parameter logistic curve in a three level Bayesian hierarchical model, accounting for uncertainty due to all known experimental conditions as well as between laboratory variability in a top-down manner. Computation was performed using Markov Chain Monte Carlo methods. The fit of the model was evaluated using Bayesian posterior predictive probabilities and found to be satisfactory.

  12. Dynamic Analysis of Mobile Device Applications

    Energy Technology Data Exchange (ETDEWEB)

    Corey Thuen

    2013-01-01

    The On-Device Dynamic Analysis of Mobile Applications (ODAMA) project was started in an effort to protect mobile devices used in Industrial Control Systems (ICS) from cyber attack. Because mobile devices hide as much of the “computer” as possible, the user’s ability to assess the software running on their system is limited. The research team chose Google’s Android platform for this initial research because it is open source and it would give us freedom in our approach, including the ability to modify the mobile device’s operating system itself. The research team concluded that a Privileged Application was the right approach, and the result was ODAMA. This project is an important piece of the work to secure the expanding use of mobile devices with our nation’s critical infrastructure.

  13. Water and organic nitrate detection in an AMS. Laboratory characterization and application to ambient measurements

    Energy Technology Data Exchange (ETDEWEB)

    Mensah, Amewu A.

    2011-08-12

    Atmospheric aerosols were studied by three different means. Laboratory experiments determined the relative ionization efficiency of water (RIE{sub H2O}) in an Aerodyne Aerosol Mass Spectrometers (AMS), simulation chamber experiments gave insight to the reaction products of biogenic volatile organic compounds (BVOC) oxidation products, and the findings were applied to two field campaign measurements at Cabauw, NL, in May 2008 and February 2009. Knowing the liquid water content of aerosol particles is vital for the assessment of their climate forcing potential. A value of 2 for RIE{sub H2O} was determined by studying oxalate salts with different amounts of crystal water. BVOCs contribute much more to the global budget of VOCs than anthropogenic ones but oxidation products in terms of secondary organic aerosol often correlate to anthropogenic tracers such as NO{sub x} from fossil fuel burning. In atmospheric simulation chamber experiments, organic nitrates from BVOC-NO{sub 3} oxidation showed higher vapor pressures than pure organic compounds produced in the same reactions. Organic nitrates comprised up to approx. 41 % of the particulate phase. A specific fragmentation ratio of nitrate (NO{sub 2}{sup +}/NO{sup +}) of 0.1 was found by high resolution AMS analysis differing strongly from the value of 0.4 known for the most abundant ambient NO{sub 3} specie (NH{sub 4}NO{sub 3}). Ambient average particulate mass loadings were 9.72 {mu}g/m{sup 3} dominated by organics (40 %) in 2008 and 5.62 {mu}g/m{sup 3} dominated by nitrate (42 %) in 2009. Data comparison to collocated instruments showed good agreement. Positive Matrix Factorization analysis of the particulate organic fraction distinguished semi and low volatile oxygenated organic aerosol (OOA) as well as hydrocarbon like organic aerosol (HOA) in both campaigns. An additional highly oxygenated OA with a mass spectrum very similar to fulvic acid was found in 2008. The average contribution of organic nitrate to the

  14. Visualization of CDA laboratory reports and long term trends as a possible EHR application for patients and physicians.

    Science.gov (United States)

    Obenaus, Manuel; Burgsteiner, Harald

    2014-01-01

    To increase the patient's acceptance of electronic health records and understanding for their laboratory findings a web application was developed which presents all parameters and possible deviations of standard values in a clear way and visualizes the time based trend of all recorded parameters graphically. Documents corresponding to the Clinical document architecture (CDA) R2 laboratory reports standard and a rapid prototyping framework called Groovy on Grails were used. This work shows, that it is possible to create a useful, standards based tool for patients and physicians with comparatively few resources - an application that could be in similar form a part of an electronic Health Record (EHR) system like the Austrian electronic Health Record (ELGA).

  15. Comparative Analysis of Virtual Education Applications

    OpenAIRE

    Kurt, Mehmet

    2006-01-01

    The research was conducted in order to make comparative analysis of virtual education applications. The research is conducted in survey model. The study group consists of total 300 institutes providing virtual education in the fall, spring and summer semesters of 2004; 246 in USA, 10 in Australia, 3 in South Africa, 10 in India, 21 in UK, 6 in Japan, 4 in Turkey. The information has been collected by online questionnaire sent to the target mass by e-mail. The questionnaire has been developed ...

  16. Constructivism theory analysis and application to curricula.

    Science.gov (United States)

    Brandon, Amy F; All, Anita C

    2010-01-01

    Today's nursing programs are struggling to accommodate the changing needs of the health care environment and need to make changes in how students are taught. Using constructivism theory, whereby learning is an active process in which learners construct new ideas or concepts based upon their current or past knowledge, leaders in nursing education can make a paradigm shift toward concept-based curricula. This article presents a summary and analysis of constructivism and an innovative application of its active-learning principles to curriculum development, specifically for the education of nursing students.

  17. Techniques and Applications of Urban Data Analysis

    KAUST Repository

    AlHalawani, Sawsan N.

    2016-05-26

    Digitization and characterization of urban spaces are essential components as we move to an ever-growing ’always connected’ world. Accurate analysis of such digital urban spaces has become more important as we continue to get spatial and social context-aware feedback and recommendations in our daily activities. Modeling and reconstruction of urban environments have thus gained unprecedented importance in the last few years. Such analysis typically spans multiple disciplines, such as computer graphics, and computer vision as well as architecture, geoscience, and remote sensing. Reconstructing an urban environment usually requires an entire pipeline consisting of different tasks. In such a pipeline, data analysis plays a strong role in acquiring meaningful insights from the raw data. This dissertation primarily focuses on the analysis of various forms of urban data and proposes a set of techniques to extract useful information, which is then used for different applications. The first part of this dissertation presents a semi-automatic framework to analyze facade images to recover individual windows along with their functional configurations such as open or (partially) closed states. The main advantage of recovering both the repetition patterns of windows and their individual deformation parameters is to produce a factored facade representation. Such a factored representation enables a range of applications including interactive facade images, improved multi-view stereo reconstruction, facade-level change detection, and novel image editing possibilities. The second part of this dissertation demonstrates the importance of a layout configuration on its performance. As a specific application scenario, I investigate the interior layout of warehouses wherein the goal is to assign items to their storage locations while reducing flow congestion and enhancing the speed of order picking processes. The third part of the dissertation proposes a method to classify cities

  18. Comparative Analysis of Virtual Education Applications

    Directory of Open Access Journals (Sweden)

    Mehmet KURT

    2006-10-01

    Full Text Available The research was conducted in order to make comparative analysis of virtual education applications. The research is conducted in survey model. The study group consists of total 300 institutes providing virtual education in the fall, spring and summer semesters of 2004; 246 in USA, 10 in Australia, 3 in South Africa, 10 in India, 21 in UK, 6 in Japan, 4 in Turkey. The information has been collected by online questionnaire sent to the target mass by e-mail. The questionnaire has been developed in two information categories as personal information and institutes and their virtual education applications. The English web design of the online questionnaire and the database has been prepared by Microsoft ASP codes which is the script language of Microsoft Front Page editor and has been tested on personal web site. The questionnaire has been pre applied in institutions providing virtual education in Australia. The English text of the questionnaire and web site design have been sent to educational technology and virtual education specialists in the countries of the study group. With the feedback received, the spelling mistakes have been corrected and concept and language validity have been completed. The application of the questionnaire has taken 40 weeks during March-November 2004. Only 135 institutes have replied. Two of the questionnaires have been discharged because they included mistaken coding, names of the institutions and countries. Valid 133 questionnaires cover approximately 44% of the study group. Questionnaires saved in the online database have been transferred to Microsoft Excel and then to SPSS by external database connection. In regards of the research objectives, the data collected has been analyzed on computer and by using SPSS statistics package program. In data analysis frequency (f, percentage (% and arithmetic mean ( have been used. In comparisons of country, institute, year, and other variables, che-square test, independent t

  19. Metal mixture toxicity to aquatic biota in laboratory experiments: Application of the WHAM-F{sub TOX} model

    Energy Technology Data Exchange (ETDEWEB)

    Tipping, E., E-mail: et@ceh.ac.uk; Lofts, S.

    2013-10-15

    Highlights: •Metal accumulation by living organisms is successfully simulated with WHAM. •Modelled organism-bound metal provides a measure of toxic exposure. •The toxic potency of individual bound metals is quantified by fitting toxicity data. •Eleven laboratory mixture toxicity data sets were parameterised. •Relatively little variability amongst individual test organisms is indicated. -- Abstract: The WHAM-F{sub TOX} model describes the combined toxic effects of protons and metal cations towards aquatic organisms through the toxicity function (F{sub TOX}), a linear combination of the products of organism-bound cation and a toxic potency coefficient (α{sub i}) for each cation. Organism-bound, metabolically-active, cation is quantified by the proxy variable, amount bound by humic acid (HA), as predicted by the WHAM chemical speciation model. We compared published measured accumulations of metals by living organisms (bacteria, algae, invertebrates) in different solutions, with WHAM predictions of metal binding to humic acid in the same solutions. After adjustment for differences in binding site density, the predictions were in reasonable line with observations (for logarithmic variables, r{sup 2} = 0.89, root mean squared deviation = 0.44), supporting the use of HA binding as a proxy. Calculated loadings of H{sup +}, Al, Cu, Zn, Cd, Pb and UO{sub 2} were used to fit observed toxic effects in 11 published mixture toxicity experiments involving bacteria, macrophytes, invertebrates and fish. Overall, WHAM-F{sub TOX} gave slightly better fits than a conventional additive model based on solution concentrations. From the derived values of α{sub i}, the toxicity of bound cations can tentatively be ranked in the order: H < Al < (Zn–Cu–Pb–UO{sub 2}) < Cd. The WHAM-F{sub TOX} analysis indicates much narrower ranges of differences amongst individual organisms in metal toxicity tests than was previously thought. The model potentially provides a means to

  20. Idaho National Laboratory Quarterly Performance Analysis - 1st Quarter FY2015

    Energy Technology Data Exchange (ETDEWEB)

    Mitchell, Lisbeth A. [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2015-03-01

    This report is published quarterly by the Idaho National Laboratory (INL) Quality and Performance Management Organization. The Department of Energy (DOE) Occurrence Reporting and Processing System (ORPS), as prescribed in DOE Order 232.2, “Occurrence Reporting and Processing of Operations Information,” requires a quarterly analysis of events, both reportable and not reportable, for the previous 12 months. This report is the analysis of 73 reportable events (27 from the 1St Qtr FY-15 and 46 from the prior three reporting quarters), as well as 38 other issue reports (including nine not reportable events and Significant Category A and B conditions reported during the1st Qtr FY-15) identified at INL during the past 12 months.

  1. Safety analysis report for the Heavy-Element Facility (Building 251), Lawrence Livermore National Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Kvam, D.J.

    1982-10-11

    A comprehensive safety analysis was performed on the Lawrence Livermore National Laboratory's Heavy Element Facility, Building 251. The purpose of the analysis was to evaluate the building and its operations in order to inform LLNL and the Department of Energy of the risks they assume at Building 251. This was done by examining all of the energy sources and matching them with the physical and administrative barriers that control, prevent, or mitigate their hazards. Risk was evaluated for each source under both normal and catastrophic circumstances such as fire, flood, high wind, lighting, earthquake, and criticality. No significant safety deficiencies were found; it is concluded that the operation of the facility presents no unacceptable risk.

  2. Methodology for in situ gas sampling, transport and laboratory analysis of gases from stranded cetaceans

    Science.gov (United States)

    de Quirós, Yara Bernaldo; González-Díaz, Óscar; Saavedra, Pedro; Arbelo, Manuel; Sierra, Eva; Sacchini, Simona; Jepson, Paul D.; Mazzariol, Sandro; di Guardo, Giovanni; Fernández, Antonio

    2011-12-01

    Gas-bubble lesions were described in cetaceans stranded in spatio-temporal concordance with naval exercises using high-powered sonars. A behaviourally induced decompression sickness-like disease was proposed as a plausible causal mechanism, although these findings remain scientifically controversial. Investigations into the constituents of the gas bubbles in suspected gas embolism cases are highly desirable. We have found that vacuum tubes, insulin syringes and an aspirometer are reliable tools for in situ gas sampling, storage and transportation without appreciable loss of gas and without compromising the accuracy of the analysis. Gas analysis is conducted by gas chromatography in the laboratory. This methodology was successfully applied to a mass stranding of sperm whales, to a beaked whale stranded in spatial and temporal association with military exercises and to a cetacean chronic gas embolism case. Results from the freshest animals confirmed that bubbles were relatively free of gases associated with putrefaction and consisted predominantly of nitrogen.

  3. Idaho National Laboratory Quarterly Occurrence Analysis - 1st Quarter FY 2016

    Energy Technology Data Exchange (ETDEWEB)

    Mitchell, Lisbeth Ann [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2016-03-01

    This report is published quarterly by the Idaho National Laboratory (INL) Quality and Performance Management Organization. The Department of Energy (DOE) Occurrence Reporting and Processing System (ORPS), as prescribed in DOE Order 232.2, “Occurrence Reporting and Processing of Operations Information,” requires a quarterly analysis of events, both reportable and not reportable, for the previous 12 months. This report is the analysis of 74 reportable events (16 from the 1st Qtr FY-16 and 58 from the prior three reporting quarters), as well as 35 other issue reports (including events found to be not reportable and Significant Category A and B conditions) identified at INL during the past 12 months (15 from this quarter and 20 from the prior three quarters).

  4. Methodology for in situ gas sampling, transport and laboratory analysis of gases from stranded cetaceans.

    Science.gov (United States)

    Bernaldo de Quirós, Yara; González-Díaz, Oscar; Saavedra, Pedro; Arbelo, Manuel; Sierra, Eva; Sacchini, Simona; Jepson, Paul D; Mazzariol, Sandro; Di Guardo, Giovanni; Fernández, Antonio

    2011-01-01

    Gas-bubble lesions were described in cetaceans stranded in spatio-temporal concordance with naval exercises using high-powered sonars. A behaviourally induced decompression sickness-like disease was proposed as a plausible causal mechanism, although these findings remain scientifically controversial. Investigations into the constituents of the gas bubbles in suspected gas embolism cases are highly desirable. We have found that vacuum tubes, insulin syringes and an aspirometer are reliable tools for in situ gas sampling, storage and transportation without appreciable loss of gas and without compromising the accuracy of the analysis. Gas analysis is conducted by gas chromatography in the laboratory. This methodology was successfully applied to a mass stranding of sperm whales, to a beaked whale stranded in spatial and temporal association with military exercises and to a cetacean chronic gas embolism case. Results from the freshest animals confirmed that bubbles were relatively free of gases associated with putrefaction and consisted predominantly of nitrogen. PMID:22355708

  5. A clean laboratory for ultratrace analysis: the ultratrace analytical facility (UTAF)

    International Nuclear Information System (INIS)

    Thare has been an increasing demand for the quantification of various elements at extremely low concentrations in a variety of samples such as high purity materials, environmental and biological samples. The need for a controlled environment to obtain reliable and reproducible data necessitates the use of strategies and practices to minimize contamination during the analytical procedure. This report describes the protocol observed in our clean laboratory to eliminate contamination and ensure low laboratory blanks and some of the methodologies developed to carry out the analysis. The analysis is carried out by Graphite Furnace Atomic Absorption Spectrometry and electrochemical techniques such as Anodic/ Cathodic / Adsorptive Stripping Voltammetry. Characterisation of 5N (total impurities 10 ppm) arsenic is routinely carried out. Al in serum of patients suffering from end stage renal failure are also analyzed. Pine leaves, spinach, carrot puree and milk powder have been characterized for Al and Hg content and bovine serum has been characterized for Cu, Zn, Na, K in samples as part of intercomparison exercises. (author)

  6. Feature Analysis of STEP Application Protocol and its Application

    Institute of Scientific and Technical Information of China (English)

    1999-01-01

    This paper uses semantic data modelling and CAD/CAPP/CAM integration to analyze the features defined in the STEP AP214, its characteristics of definition and distribution, and its influence on the complexity of CAD/CAPP/CAM application integration. A framework is developed for applications of CAD/CAPP/CAM integration based on the STEP to reduce the complexity of integration implementation. Two application program interfaces (API), namely, application protocol API and application API, are developed. The frameworks hierarchy structure and the application program interfaces between the layers make the integration of applications easier.

  7. Applications of neutron activation analysis technique

    International Nuclear Information System (INIS)

    The technique was developed as far back as 1936 by G. Hevesy and H. Levy for the analysis of Dy using an isotopic source. Approximately 40 elements can be analyzed by instrumental neutron activation analysis (INNA) technique with neutrons from a nuclear reactor. By applying radiochemical separation, the number of elements that can be analysed may be increased to almost 70. Compared with other analytical methods used in environmental and industrial research, NAA has some unique features. These are multi-element capability, rapidity, reproducibility of results, complementarity to other methods, freedom from analytical blank and independency of chemical state of elements. There are several types of neutron sources namely: nuclear reactors, accelerator-based and radioisotope-based sources, but nuclear reactors with high fluxes of neutrons from the fission of 235U give the most intense irradiation, and hence the highest available sensitivities for NAA. In this paper, the applications of NAA of socio-economic importance are discussed. The benefits of using NAA and related nuclear techniques for on-line applications in industrial process control are highlighted. A brief description of the NAA set-ups at CERT is enumerated. Finally, NAA is compared with other leading analytical techniques

  8. Geospatial Education and Research Development: A Laboratory for Remote Sensing and Environmental Analysis (LaRSEA)

    Science.gov (United States)

    Allen, Thomas R., Jr.

    1999-01-01

    Old Dominion University has claimed the title "University of the 21st Century," with a bold emphasis on technology innovation and application. In keeping with this claim, the proposed work has implemented a new laboratory equipped for remote sensing as well as curriculum and research innovations afforded for present and future faculty and students. The developments summarized within this report would not have been possible without the support of the NASA grant and significant cost-sharing of several units within the University. The grant effectively spring-boarded the university into major improvements in its approach to remote sensing and geospatial information technologies. The university has now committed to licensing Erdas Imagine software for the laboratory, a campus-wide ESRI geographic information system (GIS) products license, and several smaller software and hardware utilities available to faculty and students through the laboratory. Campus beneficiaries of this grant have included faculty from departments including Ocean, Earth. and Atmospheric Sciences, Political Science and Geography, Ecological Sciences, Environmental Health, and Civil and Environmental Engineering. High student interest is evidenced in students in geology, geography, ecology, urban studies, and planning. Three new courses have been added to the catalog and offered this year. Cross-cutting curriculum changes are in place with growing enrollments in remote sensing, GIS, and a new co-taught seminar in applied coastal remote sensing. The enabling grant has also allowed project participants to attract external funding for research grants, thereby providing additional funds beyond the planned matching, maintenance and growth of software and hardware, and stipends for student assistants. Two undergraduate assistants and two graduate assistants have been employed by full-time assistantships as a result. A new certificate is offered to students completing an interdisciplinary course sequence

  9. Applications of Electromigration Techniques: Applications of Electromigration Techniques in Food Analysis

    Science.gov (United States)

    Wieczorek, Piotr; Ligor, Magdalena; Buszewski, Bogusław

    Electromigration techniques, including capillary electrophoresis (CE), are widely used for separation and identification of compounds present in food products. These techniques may also be considered as alternate and complementary with respect to commonly used analytical techniques, such as high-performance liquid chromatography (HPLC), or gas chromatography (GC). Applications of CE concern the determination of high-molecular compounds, like polyphenols, including flavonoids, pigments, vitamins, food additives (preservatives, antioxidants, sweeteners, artificial pigments) are presented. Also, the method developed for the determination of proteins and peptides composed of amino acids, which are basic components of food products, are studied. Other substances such as carbohydrates, nucleic acids, biogenic amines, natural toxins, and other contaminations including pesticides and antibiotics are discussed. The possibility of CE application in food control laboratories, where analysis of the composition of food and food products are conducted, is of great importance. CE technique may be used during the control of technological processes in the food industry and for the identification of numerous compounds present in food. Due to the numerous advantages of the CE technique it is successfully used in routine food analysis.

  10. Analysis and Implementation of an Electronic Laboratory Notebook in a Biomedical Research Institute

    Science.gov (United States)

    Dujardin, Gwendal; Cabrera-Andrade, Alejandro; Paz-y-Miño, César; Indacochea, Alberto; Inglés-Ferrándiz, Marta; Nadimpalli, Hima Priyanka; Collu, Nicola; Dublanche, Yann; De Mingo, Ismael; Camargo, David

    2016-01-01

    Electronic laboratory notebooks (ELNs) will probably replace paper laboratory notebooks (PLNs) in academic research due to their advantages in data recording, sharing and security. Despite several reports describing technical characteristics of ELNs and their advantages over PLNs, no study has directly tested ELN performance among researchers. In addition, the usage of tablet-based devices or wearable technology as ELN complements has never been explored in the field. To implement an ELN in our biomedical research institute, here we first present a technical comparison of six ELNs using 42 parameters. Based on this, we chose two ELNs, which were tested by 28 scientists for a 3-month period and by 80 students via hands-on practical exercises. Second, we provide two survey-based studies aimed to compare these two ELNs (PerkinElmer Elements and Microsoft OneNote) and to analyze the use of tablet-based devices. We finally explore the advantages of using wearable technology as ELNs tools. Among the ELNs tested, we found that OneNote presents almost all parameters evaluated (39/42) and both surveyed groups preferred OneNote as an ELN solution. In addition, 80% of the surveyed scientists reported that tablet-based devices improved the use of ELNs in different respects. We also describe the advantages of using OneNote application for Apple Watch as an ELN wearable complement. This work defines essential features of ELNs that could be used to improve ELN implementation and software development. PMID:27479083

  11. Analysis and Implementation of an Electronic Laboratory Notebook in a Biomedical Research Institute.

    Science.gov (United States)

    Guerrero, Santiago; Dujardin, Gwendal; Cabrera-Andrade, Alejandro; Paz-Y-Miño, César; Indacochea, Alberto; Inglés-Ferrándiz, Marta; Nadimpalli, Hima Priyanka; Collu, Nicola; Dublanche, Yann; De Mingo, Ismael; Camargo, David

    2016-01-01

    Electronic laboratory notebooks (ELNs) will probably replace paper laboratory notebooks (PLNs) in academic research due to their advantages in data recording, sharing and security. Despite several reports describing technical characteristics of ELNs and their advantages over PLNs, no study has directly tested ELN performance among researchers. In addition, the usage of tablet-based devices or wearable technology as ELN complements has never been explored in the field. To implement an ELN in our biomedical research institute, here we first present a technical comparison of six ELNs using 42 parameters. Based on this, we chose two ELNs, which were tested by 28 scientists for a 3-month period and by 80 students via hands-on practical exercises. Second, we provide two survey-based studies aimed to compare these two ELNs (PerkinElmer Elements and Microsoft OneNote) and to analyze the use of tablet-based devices. We finally explore the advantages of using wearable technology as ELNs tools. Among the ELNs tested, we found that OneNote presents almost all parameters evaluated (39/42) and both surveyed groups preferred OneNote as an ELN solution. In addition, 80% of the surveyed scientists reported that tablet-based devices improved the use of ELNs in different respects. We also describe the advantages of using OneNote application for Apple Watch as an ELN wearable complement. This work defines essential features of ELNs that could be used to improve ELN implementation and software development.

  12. Application of the SmartSampling Methodology to the Evaluation of Contaminated Landscape Soils at Brookhaven National Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    RAUTMAN,CHRISTOPHER A.

    2000-08-01

    Portions of the SmartSampling{trademark} analysis methodology have been applied to the evaluation of radioactive contaminated landscape soils at Brookhaven National Laboratory. Specifically, the spatial, volumetric distribution of cesium-137 ({sup 137}Cs) contamination within Area of Concern 16E-1 has been modeled probabilistically using a geostatistical methodology, with the purpose of identifying the likelihood of successfully reducing, with respect to a pre-existing, baseline remediation plan, the volume of soil that must be disposed of offsite during clean-up. The principal objective of the analysis was to evaluate the likelihood of successful deployment of the Segmented Gate System (SGS), a novel remediation approach that emphasizes real-time separation of clean from contaminated materials during remediation operations. One primary requirement for successful application of the segmented gate technology investigated is that a variety of contaminant levels exist at the deployment site, which would enable to the SGS to discriminate material above and below a specified remediation threshold value. The results of this analysis indicate that there is potential for significant volume reduction with respect to the baseline remediation plan at a threshold excavation level of 23 pCi/g {sup 137}Cs. A reduction of approximately 50%, from a baseline volume of approximately 1,064.7 yd{sup 3} to less than 550 yd{sup 3}, is possible with acceptance of only a very small level of engineering risk. The vast majority of this volume reduction is obtained by not excavating almost all of levels 3 and 4 (from 12 to 24 inches in depth), which appear to be virtually uncontaminated, based on the available data. Additional volume reductions related to soil materials on levels 1 (depths of 0--6 inches) and 2 (6--12 inches) may be possible, specifically through use of the SGS technology. Level-by-level evaluation of simulation results suggests that as much as 26 percent of level 1 and as

  13. The Virtual Product-Process Design Laboratory for Structured Chemical Product Design and Analysis

    DEFF Research Database (Denmark)

    Mattei, Michele; Yunus, Nor Alafiza Binti; Kalakul, Sawitree;

    2014-01-01

    The objective of this paper is to present new methods for design of chemicals based formulated products and their implementation in the software, the Virtual Product-Process Design Laboratory. The new products are tailor-made blended liquid products and emulsion-based products. The new software...... employs a template approach, where each template follows the same common steps in the workflow for design of formulated products, but has the option to employ different product specific property models, data and calculation routines, when necessary. With the new additions, the software is able to support....... Output from the software is a small set of most promising product candidates and a short list of recommended experiments that can validate and further fine-tune the product composition. The application of the new features is highlighted through two case studies relative to an emulsion-based product...

  14. Automatization of the neutron activation analysis method in the nuclear analysis laboratory

    International Nuclear Information System (INIS)

    In the present paper the work done to automatice the Neutron Activation Analysis technic with a neutron generator is described. An interface between an IBM compatible microcomputer and the equipment in use to make this kind of measurement was developed. including the specialized software for this system

  15. An inter-laboratory retrospective analysis of immunotoxicological endpoints in non-human primates: flow cytometry immunophenotyping.

    Science.gov (United States)

    Krejsa, Cecile M; Neradilek, Moni Blazej; Polissar, Nayak L; Cox, Nick; Clark, Darcey; Cowan, Laine; Bussiere, Jeanine; Lebrec, Herve

    2013-01-01

    Non-human primates may be the only relevant species for pharmacology or toxicology studies of certain biologics, due to lack of activity in other species. Flow cytometry immunophenotyping is often included as a minimally invasive adjunct to standard toxicity testing. A retrospective inter-laboratory analysis was conducted to assess counts and variability of the main cell types monitored in toxicity studies, and to provide guidance for conduct and interpretation of immunophenotyping assessments in cynomolgus monkeys. Univariate and multivariate models were developed. Study design factors influencing cell counts and variability were identified and a power analysis was performed. Pre-study and on-study counts were generally similar; longitudinal analysis showed little drift in mean counts or within-animal variability over time. Within-animal variability was lower than inter-animal variability. Gender was associated with small but significant differences in mean counts and variability. Age was associated with significant differences in variability. Immunophenotype definitions were associated with significant differences in mean counts and within-animal variability for most cell types. Power analysis for groups of 6-8 animals showed that differences of ≈50% in counts of T-cells, T-cell subsets, and B-cells compared to pre-treatment values may be detected; for NK cells and monocytes, differences of ≈60-90% may be detected. This review yields some general points to consider for immunophenotyping studies, i.e. (a) analysis of log-transformed cell count data and comparisons using each animal as its own reference will improve ability to detect changes, (b) the magnitude of change detectable given study group size should be considered, (c) multiplication of sampling timepoints during a study seems unnecessary, (d) consideration should be given to using only one gender, when applicable, to increase power while minimizing animal usage, and (e) the choice of immunophenotype

  16. Faculty perspectives of the undergraduate laboratory: A survey of faculty goals for the laboratory and comparative analysis of responses using statistical techniques

    Science.gov (United States)

    Bruck, Aaron D.

    Qualitative research methods were used in a previous study to discover the goals of faculty members teaching undergraduate laboratories. Assertions about the goals and the unique characteristics of innovative lab programs were developed from categories that emerged from the interviews. The purpose of the present research was to create a survey instrument to measure the prevalence of these themes and faculty goals for undergraduate laboratories with a national sample. This was achieved through a two-stage process that utilized a pilot survey to determine the factor structure and reduce the number of survey items to a manageable size. Once the number of survey questions was reduced, the full survey was given to a national sample of undergraduate laboratory faculty. The 312 responses to the survey were then analyzed using factor analysis. Comparative analyses were conducted using analysis of variance (ANOVA). This dissertation focuses on the processes involved in the creation of this survey and the subsequent analyses of the data the survey produced. The results of these analyses and the implications of this research will also be discussed.

  17. Development of multiscale analysis and some applications

    Science.gov (United States)

    Wang, Lipo

    2014-11-01

    For most complex systems the interaction of different scales is among the most interesting and challenging features. Typically different scale regimes have different physical properties. The commonly used analysis approaches such as structure function and Fourier analysis have their respective limitations, for instance the mixing of large and small scale information, i.e. the so-called infrared and ultraviolet effects. To make improvement in this regard, a new method, segment structure analysis (SSA), has been developed to study the multiscale statistics. Such method can detect the regime scaling based on the conditional extremal points, depicting the geometrical features directly in physical space. From standard test cases (e.g. fractal Brownian motion) to real turbulence data, results show that SSA can appropriately distinguish the different scale effects. A successful application is the scaling of the Lagrangian velocity structure function. This long-time controversial topic has been confirmed using the present method. In principle SSA can generally be applied to various problems.

  18. Acceleration of Data Analysis Applications using GPUs

    Science.gov (United States)

    Fillmore, D.; Messmer, P.; Mullowney, P.; Amyx, K.

    2008-12-01

    The vast amount of data collected by present and future scientific instruments, sensors and numerical models requires a significant increase in computing power for analysis. In many cases, processing time on a single workstation becomes impractical. While clusters of commodity processors can be utilized to accelerate some of these tasks, the relatively high software development cost, as well as acquisition and operational costs, make them less attractive for broad use. Over the past few years, another class of architectures has gained some popularity, namely heterogeneous architectures, which consist of general purpose processors connected to specialized processors. One of the most prominent examples are Graphics Processing Units (GPUs), which offer a tremendous amount of floating-point processing power due to demand for high-quality graphics in the computer game market. However, in order to harness this processing power, software developers have to develop with a detailed understanding of the underlying hardware. This burden on the developer is often hardly justifiable considering the rapid evolution of the hardware. In this talk, we will introduce GPULib, an open source library that enables scientists to accelerate their data analysis tasks using the GPUs already installed in their system from within high-level languages like IDL or MATLAB, and present examples and possible speedup from real-world data analysis applications. This work is funded through NASA Phase II SBIR Grant NNG06CA13C.

  19. Condition Monitoring Of Operating Pipelines With Operational Modal Analysis Application

    Directory of Open Access Journals (Sweden)

    Mironov Aleksey

    2015-12-01

    Full Text Available In the petroleum, natural gas and petrochemical industries, great attention is being paid to safety, reliability and maintainability of equipment. There are a number of technologies to monitor, control, and maintain gas, oil, water, and sewer pipelines. The paper focuses on operational modal analysis (OMA application for condition monitoring of operating pipelines. Special focus is on the topicality of OMA for definition of the dynamic features of the pipeline (frequencies and mode shapes in operation. The research was conducted using two operating laboratory models imitated a part of the operating pipeline. The results of finite-element modeling, identification of pipe natural modes and its modification under the influence of virtual failure are discussed. The work considers the results of experimental research of dynamic behavior of the operating pipe models using one of OMA techniques and comparing dynamic properties with the modeled data. The study results demonstrate sensitivity of modal shape parameters to modification of operating pipeline technical state. Two strategies of pipeline repair – with continuously condition-based monitoring with proposed technology and without such monitoring, was discussed. Markov chain reliability models for each strategy were analyzed and reliability improvement factor for proposed technology of monitoring in compare with traditional one was evaluated. It is resumed about ability of operating pipeline condition monitoring by measuring dynamic deformations of the operating pipe and OMA techniques application for dynamic properties extraction.

  20. Los Alamos National Laboratory Training Capabilities (Possible Applications in the Global Initiatives for Proliferation Prevention Program)

    Energy Technology Data Exchange (ETDEWEB)

    Martin, Olga [Los Alamos National Laboratory

    2012-06-04

    The briefing provides an overview of the training capabilities at Los Alamos National Laboratory that can be applied to nonproliferation/responsible science education at nuclear institutes in the Former Soviet Union, as part of the programmatic effort under the Global Initiatives for Proliferation Prevention program (GIPP).

  1. Laboratory Astrophysics Studies with the COSmIC Facility: Interstellar and Planetary Applications.

    Science.gov (United States)

    Salama, Farid; Contreras, Cesar S.; Sciamma-O'Brien, Ella; Bejaoui, Salma

    2015-08-01

    We present and discuss the characteristics and the capabilities of the laboratory facility, COSmIC, that was developed at NASA Ames to generate, process and analyze interstellar, circumstellar and planetary analogs in the laboratory [1]. COSmIC stands for “Cosmic Simulation Chamber” and is dedicated to the study of neutral and ionized molecules and nano particles under the low temperature and high vacuum conditions that are required to simulate space environments. COSmIC integrates a variety of state-of-the-art instruments that allow forming, processing and monitoring simulated space conditions for planetary, circumstellar and interstellar materials in the laboratory. COSmIC is composed of a Pulsed Discharge Nozzle (PDN) expansion that generates a plasma in free supersonic jet expansion coupled to two high-sensitivity, complementary in situ diagnostics: a Cavity Ring Down Spectroscopy (CRDS) and laser induced fluorescence (LIF) systems for photonic detection and a Reflectron Time-Of-Flight Mass Spectrometer (ReTOF-MS) for mass detection [2].Recent laboratory astrophysics results that were obtained using COSmIC will be presented, in particular the progress that has been achieved in the domain of the diffuse interstellar bands (DIBs) and in monitoring, in the laboratory, the formation of dust grains and aerosols from their gas-phase molecular precursors in environments as varied as stellar/circumstellar outflows [3] and planetary atmospheres [4]. Plans for future, next generation, laboratory experiments on cosmic molecules and grains in the growing field of laboratory astrophysics will also be addressed as well as the implications of the current studies for astronomy.References:[1] Salama F., In Organic Matter in Space, IAU Symposium 251, Kwok & Sandford Eds.Cambridge University Press, Vol. 4, S251, p. 357 (2008) and references therein.[2] Ricketts C., Contreras C., Walker, R., Salama F., Int. J. Mass Spec, 300, 26 (2011)[3] Cesar Contreras and Farid Salama, The

  2. Testing the limits of quasi-geostrophic theory: application to observed laboratory flows outside the quasi-geostrophic regime

    Science.gov (United States)

    Williams, Paul; Read, Peter; Haine, Thomas

    2010-05-01

    We compare laboratory observations of equilibrated baroclinic waves in the rotating two-layer annulus, with numerical simulations from a quasi-geostrophic model. The laboratory experiments lie well outside the quasi-geostrophic regime: the Rossby number reaches unity; the depth-to-width aspect ratio is large; and the fluid contains ageostrophic inertia-gravity waves. Despite being formally inapplicable, the quasi-geostrophic model captures the laboratory flows reasonably well. The model displays several systematic biases, which are consequences of its treatment of boundary layers and neglect of interfacial surface tension, and which may be explained without invoking the dynamical effects of the moderate Rossby number, large aspect ratio or inertia-gravity waves. We conclude that quasi-geostrophic theory appears to continue to apply well outside its formal bounds. This is an unexpected and intriguing result that could not have been predicted from the existing literature. It is also potentially useful, for example by permitting the use of a low-order quasi-geostrophic model to easily map out the bifurcation structure - which would be very difficult with a primitive equations model - followed by the use of a primitive equations model for more quantitative agreement in specific cases. Reference Williams, PD, PL Read and TWN Haine (2010) Testing the limits of quasi-geostrophic theory: application to observed laboratory flows outside the quasi-geostrophic regime. Journal of Fluid Mechanics, in press.

  3. Los Alamos National Laboratory corregated metal pipe saw facility preliminary safety analysis report. Volume I

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1990-09-19

    This Preliminary Safety Analysis Report addresses site assessment, facility design and construction, and design operation of the processing systems in the Corrugated Metal Pipe Saw Facility with respect to normal and abnormal conditions. Potential hazards are identified, credible accidents relative to the operation of the facility and the process systems are analyzed, and the consequences of postulated accidents are presented. The risk associated with normal operations, abnormal operations, and natural phenomena are analyzed. The accident analysis presented shows that the impact of the facility will be acceptable for all foreseeable normal and abnormal conditions of operation. Specifically, under normal conditions the facility will have impacts within the limits posted by applicable DOE guidelines, and in accident conditions the facility will similarly meet or exceed the requirements of all applicable standards. 16 figs., 6 tabs.

  4. Activities of the neutron activation analysis laboratory of the radiochemistry division of IPEN - CNEN/SP

    International Nuclear Information System (INIS)

    Neutron activation analysis (NAA) is one of the relevant applications of nuclear research reactors. Due to the high neutron fluxes available in these reactors, an excellent sensitivity of analysis is attained for many elements. NAA is one of the most sensitive, precise and accurate analytical methods for trace element determination. NAA has been one of the main activities of the Radiochemistry Division of IPEN, since the beginning of the operation of the nuclear reactor IEA-R1. Most of the effort was devoted to research work, aimed to improvements in the method as well as to its applications to several kinds of matrixes (geological, biological, metallic, environmental, forensic). Besides, analytical services were also offered, to the CNEN, to industries, universities, mining companies and research institutes. In the present paper, a review is made of the research work being developed presently at the Radiochesmitry Division of IPEN. A discussion is also made of the planned expansion of the analytical services offered

  5. Space Weather Laboratory

    Data.gov (United States)

    Federal Laboratory Consortium — The Space Weather Computational Laboratory is a Unix and PC based modeling and simulation facility devoted to research analysis of naturally occurring electrically...

  6. Laboratory analysis of the infiltration capacity of interlocking concrete block pavements in car parks.

    Science.gov (United States)

    Sañudo-Fontaneda, Luis A; Rodriguez-Hernandez, Jorge; Vega-Zamanillo, Angel; Castro-Fresno, Daniel

    2013-01-01

    Interlocking concrete block pavements (ICBPs) have been widely used in car parks to reduce runoff. Researches have demonstrated that clogging is the most influential factor in the reduction of the infiltration capacity of this type of permeable pavement. Nevertheless, there is no laboratory study of the infiltration performance of ICBPs that combines clogging levels with variables related with the topography of car parks such as runoff surface length (R(SL)) and surface slope (S(S)). This paper studies the infiltration behaviour of ICBP during their operational life in a car park using an improved version of the Cantabrian Fixed (CF) Infiltrometer. This laboratory device simulates direct rainfall and runoff from adjacent impervious areas over an ICBPs surface of 0.25 m(2) for different slopes (0, 3, 5, 7 and 10%) and three scenarios of clogging (surface newly built, surface clogged and surface clogged with maintenance). This paper presents the results of the tests and a statistical analysis based on three regression models (corresponding to each clogging scenario) depending on the R(SL) and S(S) variables. All models passed a confidence level of 95%, presenting high R(2) values and showing that R(SL) is a more influential variable than the S(S) for all clogging scenarios.

  7. Assessing Reclamation Levels of Coastal Saline Lands with Integrated Stepwise Discriminant Analysis and Laboratory Hyperspectral Data

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    At different times over the past 30 years in Zhejiang Province, China, the coastal tidelands have been successively enclosed and reclaimed for agricultural land use. The purpose of this work was to evaluate whether laboratory hyperspectral data might be used to estimate the physicochemical characteristics of these reclaimed saline soils. A coastal region of Shangyu City (Zhejiang Province), which was grouped into four subzones according to reclamation history, was used as the study area, and soil samples were collected in each subzone. Physicochemical analyses showed that the soils were characterized by high electrical conductivity and sand content with low organic matter; the longer the saline lands had been reclaimed, the lower were the electrical conductivity and sand content and the higher the organic matter content.These changing trends of soil chemical and physical properties were found in laboratory reflectance spectra of soil samples and their first-order derivative curves. Stepwise discriminant analysis (SDA) identified six salient spectral bands at 488,530, 670, 880, 1 400, and 1 900 nm. Using derived discriminant functions for saline lands with different historical years of reclamation, classification revealed an overall accuracy from a self-test of 86.6% and from cross-validation of 89.3%.Therefore, as opposed to time-consuming field investigations, this study suggested that remotely sensed hyperspectral data could serve as a promising measure to assess the reclamation levels of coastal saline lands.

  8. Tongue Color Analysis for Medical Application

    Directory of Open Access Journals (Sweden)

    Bob Zhang

    2013-01-01

    Full Text Available An in-depth systematic tongue color analysis system for medical applications is proposed. Using the tongue color gamut, tongue foreground pixels are first extracted and assigned to one of 12 colors representing this gamut. The ratio of each color for the entire image is calculated and forms a tongue color feature vector. Experimenting on a large dataset consisting of 143 Healthy and 902 Disease (13 groups of more than 10 samples and one miscellaneous group, a given tongue sample can be classified into one of these two classes with an average accuracy of 91.99%. Further testing showed that Disease samples can be split into three clusters, and within each cluster most if not all the illnesses are distinguished from one another. In total 11 illnesses have a classification rate greater than 70%. This demonstrates a relationship between the state of the human body and its tongue color.

  9. Development of particle induced X-ray emission facility at cyclotron laboratory and its prospective applications

    International Nuclear Information System (INIS)

    Full text: We are presenting here a description of modifications in the Variable Energy Cyclotron (VEC) Chandigarh along with the installation of Proton Induced X-ray Emission (PIXE) setup. The installation of new main magnet power supply of 400A/125V out put with 10 ppm stability (model 853 M/S Danfysik, Denmark) and a new stabilized solid state power supply for RF oscillator gave the beam characteristics substantially good enough for PIXE work. A new chamber [1] was designed to cater for Proton Induced Gamma Emission (PIGE) and Rutherford Back Scattering (RBS) analysis along with PIXE measurements. The HPGe X-ray detector, the Ge(Li) -ray detector and a Silicon Surface Barrier (SSB) detector could be mounted simultaneously in the chamber. A Turbo-Molecular vacuum pump was provided to produce a clean vacuum of the order of 10-7 torr in PIXE chamber. A remotely controlled stepper motor could move the 12/24-position target holder. Beam size optimization along with the minimization of background was done with the help of graphite collimators, thus making the setup suitable for practical applications. We attempted to address some of the limitations using PIXE facility of Institute of Physics (IOP), India [2] and incorporated modifications (e.g. chamber design, sample holder etc.) in our set-up. Preliminary experiments for the PIXE analysis of aerosol samples, gunshot residues samples and bone samples were presented. The aerosol samples were collected using aerosol sampling kit which involves Millipore diaphragmatic vacuum pump and Sequential Filter Unit (SFU) with coarse pored Nucleo pore polycarbonate filter in such a manner that the particles passing through the 8m pore size filter were collected on the 0.4m pore size filter. Two different pistols viz. 7.65mm Indian made and 7.63mm Germany made were used to fire at a filter paper target with card board and cotton wool backing from a distance of 3 feet. Two sheets of Whatman filter paper were used to form the target

  10. Moving your laboratories to the field – Advantages and limitations of the use of field portable instruments in environmental sample analysis

    Energy Technology Data Exchange (ETDEWEB)

    Gałuszka, Agnieszka, E-mail: Agnieszka.Galuszka@ujk.edu.pl [Geochemistry and the Environment Division, Institute of Chemistry, Jan Kochanowski University, 15G Świętokrzyska St., 25-406 Kielce (Poland); Migaszewski, Zdzisław M. [Geochemistry and the Environment Division, Institute of Chemistry, Jan Kochanowski University, 15G Świętokrzyska St., 25-406 Kielce (Poland); Namieśnik, Jacek [Department of Analytical Chemistry, Chemical Faculty, Gdańsk University of Technology (GUT), 11/12 G. Narutowicz St., 80-233 Gdańsk (Poland)

    2015-07-15

    The recent rapid progress in technology of field portable instruments has increased their applications in environmental sample analysis. These instruments offer a possibility of cost-effective, non-destructive, real-time, direct, on-site measurements of a wide range of both inorganic and organic analytes in gaseous, liquid and solid samples. Some of them do not require the use of reagents and do not produce any analytical waste. All these features contribute to the greenness of field portable techniques. Several stationary analytical instruments have their portable versions. The most popular ones include: gas chromatographs with different detectors (mass spectrometer (MS), flame ionization detector, photoionization detector), ultraviolet–visible and near-infrared spectrophotometers, X-ray fluorescence spectrometers, ion mobility spectrometers, electronic noses and electronic tongues. The use of portable instruments in environmental sample analysis gives a possibility of on-site screening and a subsequent selection of samples for routine laboratory analyses. They are also very useful in situations that require an emergency response and for process monitoring applications. However, quantification of results is still problematic in many cases. The other disadvantages include: higher detection limits and lower sensitivity than these obtained in laboratory conditions, a strong influence of environmental factors on the instrument performance and a high possibility of sample contamination in the field. This paper reviews recent applications of field portable instruments in environmental sample analysis and discusses their analytical capabilities. - Highlights: • Field portable instruments are widely used in environmental sample analysis. • Field portable instruments are indispensable for analysis in emergency response. • Miniaturization of field portable instruments reduces resource consumption. • In situ analysis is in agreement with green analytical chemistry

  11. SmarTS Lab - A Laboratory for Developing Applications for WAMPAC Systems

    OpenAIRE

    Vanfretti, Luigi; Chenine, Moustafa; Almas, Muhammad Shoaib; Leelaruji, Rujiroj; Ängquist, Lennart; Nordström, Lars

    2012-01-01

    At the core of the development of “Smart Transmission Grids” is the design, implementation, and testing of synchronized phasor measurement data applications that can supplement Wide-Area Monitoring, Protection, and Control Systems(WAMPAC). Nevertheless, the development of new PMU data-based WAMPAC applications has been relatively slow. The great potential of WAMPAC systems is being limited by this, and efforts are needed so that new applications can be developed. The slow rate of development ...

  12. Laboratory Detection and Analysis of Organic Compounds in Rocks Using HPLC and XRD Methods

    Science.gov (United States)

    Dragoi, D.; Kanik, I.; Bar-Cohen, Y.; Sherrit, S.; Tsapin, A.; Kulleck, J.

    2004-01-01

    In this work we describe an analytical method for determining the presence of organic compounds in rocks, limestone, and other composite materials. Our preliminary laboratory experiments on different rocks/limestone show that the organic component in mineralogical matrices is a minor phase on order of hundreds of ppm and can be better detected using high precision liquid chromatography (HPLC). The matrix, which is the major phase, plays an important role in embedding and protecting the organic molecules from the harsh Martian environment. Some rocks bear significant amounts of amino acids therefore, it is possible to identify these phases using powder x-ray diffraction (XRD) by crystallizing the organic. The method of detection/analysis of organics, in particular amino acids, that have been associated with life will be shown in the next section.

  13. Adaptive silicon monochromators for high-power wigglers; design, finite-element analysis and laboratory tests.

    Science.gov (United States)

    Quintana, J P; Hart, M

    1995-05-01

    Multipole wigglers in storage rings already produce X-ray power in the range up to a few kilowatts and planned devices at third-generation facilities promise up to 30 kW. Although the power density at the monochromator position is an order of magnitude lower than that from undulators, the thermal strain field in the beam footprint can still cause severe loss of performance in X-ray optical systems. For an optimized adaptive design, the results of finite-element analysis are compared with double-crystal rocking curves obtained with a laboratory X-ray source and, in a second paper [Quintana, Hart, Bilderback, Henderson, Richter, Setterson, White, Hausermann, Krumrey & Schulte-Schrepping (1995). J. Synchotron Rad. 2, 1-5], successful tests at wiggler sources at CHESS and ESRF and in an undulator source at HASYLAB are reported.

  14. Importance/performance analysis: a tool for service quality control by clinical laboratories.

    Science.gov (United States)

    Scammon, D L; Weiss, R

    1991-01-01

    A study of customer satisfaction with clinical laboratory service is used as the basis for identifying potential improvements in service and more effectively targeting marketing activities to enhance customer satisfaction. Data on customer satisfaction are used to determine the aspects of service most critical to customers, how well the organization is doing in delivery of service, and how consistent service delivery is. Importance-performance analysis is used to highlight areas for future resource reallocation and strategic emphasis. Suggestions include the establishment of performance guidelines for customer contact personnel, the enhancement of timely delivery of reports via electronic transmission (computer and fax), and the development of standardized graphics for request and report forms to facilitate identification of appropriate request forms and guide clients to key items of information on reports.

  15. Modeling of the Sedimentary Interbedded Basalt Stratigraphy for the Idaho National Laboratory Probabilistic Seismic Hazard Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Suzette Payne

    2007-08-01

    This report summarizes how the effects of the sedimentary interbedded basalt stratigraphy were modeled in the probabilistic seismic hazard analysis (PSHA) of the Idaho National Laboratory (INL). Drill holes indicate the bedrock beneath INL facilities is composed of about 1.1 km of alternating layers of basalt rock and loosely consolidated sediments. Alternating layers of hard rock and “soft” loose sediments tend to attenuate seismic energy greater than uniform rock due to scattering and damping. The INL PSHA incorporated the effects of the sedimentary interbedded basalt stratigraphy by developing site-specific shear (S) wave velocity profiles. The profiles were used in the PSHA to model the near-surface site response by developing site-specific stochastic attenuation relationships.

  16. Modeling of the Sedimentary Interbedded Basalt Stratigraphy for the Idaho National Laboratory Probabilistic Seismic Hazard Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Suzette Payne

    2006-04-01

    This report summarizes how the effects of the sedimentary interbedded basalt stratigraphy were modeled in the probabilistic seismic hazard analysis (PSHA) of the Idaho National Laboratory (INL). Drill holes indicate the bedrock beneath INL facilities is composed of about 1.1 km of alternating layers of basalt rock and loosely consolidated sediments. Alternating layers of hard rock and “soft” loose sediments tend to attenuate seismic energy greater than uniform rock due to scattering and damping. The INL PSHA incorporated the effects of the sedimentary interbedded basalt stratigraphy by developing site-specific shear (S) wave velocity profiles. The profiles were used in the PSHA to model the near-surface site response by developing site-specific stochastic attenuation relationships.

  17. Laboratory Reproduction and Failure Analysis of Cracked Orbiter Reaction Control System Niobium Thruster Injectors

    Science.gov (United States)

    Jacobs, Jeremy B.; Castner, Willard L.

    2007-01-01

    A viewgraph presentation describing cracks and failure analysis of an orbiter reaction control system is shown. The topics include: 1) Endeavour STS-113 Landing; 2) RCS Thruster; 3) Thruster Cross-Section; 4) RCS Injector; 5) RCS Thruster, S/N 120l 6) Counterbore Cracks; 7) Relief Radius Cracks; 8) RCS Thruster Cracking History; 9) Thruster Manufacturing Timelines; 10) Laboratory Reproduction of Injector Cracking; 11) The Brownfield Specimen; 12) HF EtchantTests/Specimen Loading; 13) Specimen #3 HF + 600F; 14) Specimen #3 IG Fracture; 15) Specimen #5 HF + 600F; 16) Specimen #5 Popcorn ; 17) Specimen #5 Cleaned and Bent; 18) HF Exposure Test Matrix; 19) Krytox143AC Tests; 20) KrytoxTests/Specimen Loading; 21) Specimen #13 Krytox + 600F; and 22) KrytoxExposure Test Matrix.

  18. Microbial analysis of the buffer/container experiment at AECL's underground research laboratory

    International Nuclear Information System (INIS)

    The Buffer/Container Experiment (BCE) was carried out at AECL's Underground Research Laboratory (URL) for 2.5 years to examine the in situ performance of compacted buffer material in a single emplacement borehole under vault-relevant conditions. During decommissioning of this experiment, numerous samples were taken for microbial analysis to determine if the naturally present microbial population in buffer material survived the conditions (i.e., compaction, heat and desiccation) in the BCE and to determine which group(s) of microorganisms would be dominant in such a simulated vault environment. Such knowledge will be very useful in assessing the potential effects of microbial activity on the concept for deep disposal of Canada's nuclear fuel waste, proposed by AECL. 46 refs., 31 tabs., 35 figs

  19. Extraction and [superscript 1]H NMR Analysis of Fats from Convenience Foods: A Laboratory Experiment for Organic Chemistry

    Science.gov (United States)

    Hartel, Aaron M.; Moore, Amy C.

    2014-01-01

    The extraction and analysis of fats from convenience foods (crackers, cookies, chips, candies) has been developed as an experiment for a second-year undergraduate organic chemistry laboratory course. Students gravimetrically determine the fat content per serving and then perform a [superscript 1]H NMR analysis of the recovered fat to determine the…

  20. Cost-benefit analysis for waste segregation at Lawrence Livermore National Laboratory

    International Nuclear Information System (INIS)

    This report presents a cost-benefit analysis for the segregation of mixed, hazardous, and nonhazardous wastes at Lawrence Livermore National Laboratory (LLNL). The cost-benefit analysis was conducted to determine if current waste segregation practices and additional candidates for waste segregation at LLNL might have the potential for significant waste source reduction and annual savings in treatment and disposal costs. In the following cost-benefit analysis, capital costs and recurring costs of waste segregation practices are compared to the economic benefits of savings in treatment and disposal costs. Indirect or overhead costs associated with these wastes are not available and have not been included. Not considered are additional benefits of waste segregation such as decreased potential for liability to LLNL for adverse environmental effects, improved worker safety, and enhanced LLNL image within the community because of environmental improvement. The economic evaluations in this report are presented on a Lab-wide basis. All hazardous wastes generated by a program are turned over to the Hazardous Waste Management (HWM) group, which is responsible for the storage, treatment, or disposal of these wastes and funded funded directly for this work

  1. Knowledge on DNA Success Rates to Optimize the DNA Analysis Process: From Crime Scene to Laboratory.

    Science.gov (United States)

    Mapes, Anna A; Kloosterman, Ate D; van Marion, Vincent; de Poot, Christianne J

    2016-07-01

    DNA analysis has become an essential intelligence tool in the criminal justice system for the identification of possible offenders. However, it appears that about half of the processed DNA samples contains too little DNA for analysis. This study looks at DNA success rates within 28 different categories of trace exhibits and relates the DNA concentration to the characteristics of the DNA profile. Data from 2260 analyzed crime samples show that cigarettes, bloodstains, and headwear have relatively high success rates. Cartridge cases, crowbars, and tie-wraps are on the other end of the spectrum. These objective data can assist forensics in their selection process.The DNA success probability shows a positive relation with the DNA concentration. This finding enables the laboratory to set an evidence-based threshold value in the DNA analysis process. For instance, 958 DNA extracts had a concentration value of 6 pg/μL or less. Only 46 of the 958 low-level extracts provided meaningful DNA profiling data. PMID:27364287

  2. Laboratory and 3-D-distinct element analysis of failure mechanism of slope under external surcharge

    Directory of Open Access Journals (Sweden)

    N. Li

    2014-09-01

    Full Text Available Landslide is a major disaster resulting in considerable loss of human lives and property damages in hilly terrain in Hong Kong, China and many other countries. The factor of safety and the critical slip surface for slope stabilization are the main considerations for slope stability analysis in the past, while the detailed post-failure conditions of the slopes have not been considered in sufficient details. There are however increasing interest on the consequences after the initiation of failure which includes the development and propagation of the failure surfaces, the amount of failed mass and runoff and the affected region. To assess the development of slope failure in more details and to consider the potential danger of slopes after failure has initiated, the slope stability problem under external surcharge is analyzed by the distinct element method (DEM and laboratory model test in the present research. A more refined study about the development of failure, microcosmic failure mechanism and the post-failure mechanism of slope will be carried out. The numerical modeling method and the various findings from the present work can provide an alternate method of analysis of slope failure which can give additional information not available from the classical methods of analysis.

  3. Standard test method for laboratory evaluation of magnesium sacrificial anode test specimens for underground applications

    CERN Document Server

    American Society for Testing and Materials. Philadelphia

    1997-01-01

    1.1 This test method covers a laboratory procedure that measures the two fundamental performance properties of magnesium sacrificial anode test specimens operating in a saturated calcium sulfate, saturated magnesium hydroxide environment. The two fundamental properties are electrode (oxidation potential) and ampere hours (Ah) obtained per unit mass of specimen consumed. Magnesium anodes installed underground are usually surrounded by a backfill material that typically consists of 75 % gypsum (CaSO4·2H2O), 20 % bentonite clay, and 5 % sodium sulfate (Na2SO4). The calcium sulfate, magnesium hydroxide test electrolyte simulates the long term environment around an anode installed in the gypsum-bentonite-sodium sulfate backfill. 1.2 This test method is intended to be used for quality assurance by anode manufacturers or anode users. However, long term field performance properties may not be identical to property measurements obtained using this laboratory test. Note 1—Refer to Terminology G 15 for terms used ...

  4. Application of FEM Analysis to Braced Excavation

    Institute of Scientific and Technical Information of China (English)

    LI Mingfei; Atsushi Nakamura; CAI Fei; Keizo Ugai

    2008-01-01

    It is becoming possible to do detailed numerical analyses for the various mechanical behavior of braced excavation by researching and developing the numerical analysis technique such as the finite ele-ment method (FEM).However,the mechanical behavior of braced excavation has not been clanfied fully both in theory and in expedence.Therefore,improving the prediction accuracy during the prior design is very important for making the observational method of braced excavation more effective.In this paper,FEM analyses were performed for a model of braced excavation by using Geotechnical Finite Element Elasto-plastic Analysis Software,GeoFEAS (2D).As the constitutive law of ground,MC-DP model, and Dun-can-Chang model were applied.The results were compared and discussed with that of a site measurement,and the effects of the constitutive law of ground on the analyzed result were verified.For the difference be-tween the results,the reason was investigated by the analyses adjusting the elastic modulus of ground,and the appropriate application of the constitutive law was researched.

  5. APPLICATION OF A PLC TO A LABORATORY COMPRESSOR WORKSHOP CONTROL SYSTEM

    Directory of Open Access Journals (Sweden)

    Wojciech GÓRA

    2016-06-01

    Full Text Available In this paper a control system of air compressors in a university laboratory is presented. The control system, which is built using the Astraada RCC972 and the GE 90-20 drivers, is an extension of the two states’ inputs and outputs of Astraada. To visualize the work stand, the PC computer class and the Proficy Machine Edition (ME View software were applied. Selected results from the tests of the built control system are presented.

  6. Applications of Microcomputer-Based Laboratories in Inquiry-Based Science Education.

    OpenAIRE

    Staněk, Miroslav

    2013-01-01

    The main aim of the propounded work is based on the using of computer technology and experimental laboratory systems in science education. In this work there is a study of the role and function of the interactive teaching. We think about features of the school experiment in the thesis. School experiments are divided into simple typology in this work, according to the level of individualization pupil's activities into following types: demonstration activities (teacher based), student laborator...

  7. Estimation of the coefficient of variation from laboratory analysis of split specimens for quality control in clinical trials.

    Science.gov (United States)

    Connett, J E; Lee, W W

    1990-02-01

    An explicit statistical model is proposed for the coefficient of variation for laboratory analyses of constituents of blood, serum, saliva, or other specimens. A method for computing the maximum likelihood estimate of the key parameter is described, and compared with two simpler noniterative estimates. Validity of the model is explored by analysis of data from the central laboratory of a large cooperative clinical trial. Simulation studies are employed to compare the accuracy of the three estimators of the coefficient of variation. For most laboratory measurements for which the model is valid, one of the two noniterative estimates is nearly as accurate and unbiased as the maximum likelihood estimate.

  8. Application of indices Cp and Cpk to improve quality control capability in clinical biochemistry laboratories.

    Science.gov (United States)

    Chen, Ming-Shu; Wu, Ming-Hsun; Lin, Chih-Ming

    2014-04-30

    The traditional criteria for acceptability of analytic quality may not be objective in clinical laboratories. To establish quality control procedures intended to enhance Westgard multi-rules for improving the quality of clinical biochemistry tests, we applied the Cp and Cpk quality-control indices to monitor tolerance fitting and systematic variation of clinical biochemistry test results. Daily quality-control data of a large Taiwanese hospital in 2009 were analyzed. The test items were selected based on an Olympus biochemistry machine and included serum albumin, aspartate aminotransferase, cholesterol, glucose and potassium levels. Cp and Cpk values were calculated for normal and abnormal levels, respectively. The tolerance range was estimated with data from 50 laboratories using the same instruments and reagents. The results showed a monthly trend of variation for the five items under investigation. The index values of glucose were lower than those of the other items, and their values were usually <2. In contrast to the Cp value for cholesterol, Cpk of cholesterol was lower than 2, indicating a systematic error that should be further investigated. This finding suggests a degree of variation or failure to meet specifications that should be corrected. The study indicated that Cp and Cpk could be applied not only for monitoring variations in quality control, but also for revealing inter-laboratory qualitycontrol capability differences.

  9. Guidelines for application of the good laboratory practices and quality assurance and control in pesticide residues analysis; Linee guida per l`applicazione delle buone pratiche di laboratorio e l`assicurazione e il controllo della qualita` nell`analisi di residui di prodotti fitosanitari

    Energy Technology Data Exchange (ETDEWEB)

    Attard Barbini, Danilo [Istituo Superiore di Sanita`, Rome (Italy); Biancardi, Gino [Agenzia Regionale per la Protezione dell`Ambiente, Massa Carrara (Italy); Bove, Bruno [Presiduo Multizonale di Prevenzione, Potenza (Italy)] [and others

    1997-09-01

    The guidelines, particularly aimed at laboratories which carry out studies in the field of pesticide residues in food and environment, are intended to give practical, organizational and operational hints along the lines set up by the Italian Legislative Decree n. 120 of January 27, 1992 and the European standard UNI CEI EN 45001, to which the laboratories dealing with official control and monitoring should conform. The main items discussed include: organization of the laboratory, personnel and equipment, working procedures related to analytical methodology, confirmation criteria for violation of maximum residue limits and quality control.

  10. k{sub 0}-INAA application at IPEN Neutron Activation Laboratory by using the k{sub 0}-IAEA program: biological sample analysis; Aplicacao do metodo k{sub 0}-INAA no Laboratorio de Analise por Ativacao com Neutrons do IPEN utilizando o programa k{sub 0}-IAEA: analise de amostras biologicas

    Energy Technology Data Exchange (ETDEWEB)

    Puerta, Daniel Correa

    2013-07-01

    The results obtained in the application of the k{sub 0}-standardization method at LAN-IPEN for biological matrices analysis, by using the k{sub 0}-IAEA software, provided by the International Atomic Energy Agency (IAEA), are presented. The flux parameters f and a of the IEA-R1 reactor were determined for the pneumatic irradiation facility and for one selected irradiation position, 24B/shelf2, for short and long irradiations, respectively. In order to obtain these parameters, the bare triple-monitor method with {sup 197}Au-{sup 96}Zr-{sup 94}Zr was used. In order to evaluate the accuracy and precision of the methodology, the biological reference materials Peach Leaves (NIST SRM 1547), Mixed Polish Herbs (INCT-MPH-2) e Tomato Leaves (NIST SRM 1573a) were analyzed. The statistical criteria Relative Errors (bias, %), Coefficient of Variation (CV) and U-score were applied to the obtained results (mean of six replicates). The relative errors (bias, %) in relation to certified values, were, for most elements, in the range of 0 e 30. The Coefficients of Variation were below 20%, showing a good reproducibility of the results. The U-score test showed that all results, except Na in Peach Leaves and in Tomato Leaves, were within 95% confidence interval. These results point out to a promising use of the k{sub 0}-INAA method at LAN-IPEN for biological sample analysis. (author)

  11. Laboratory feasibility study of fusion vessel inner wall chemical analysis by Laser Induced Breakdown Spectroscopy

    International Nuclear Information System (INIS)

    Graphical abstract: Laser-Induced-Breakdown-Spectroscopy was used for the determination of the atomic composition of multilayered samples simulating the tiles of plasma facing components in the next generation fusion machines. Highlights: ► Description and characterization of an LIBS set-up for diagnostics in fusion machines. ► Identification of atomic composition of multilayered tiles simulating plasma facing components. ► Qualitative applicability of the Calibration Free method for quantitative analysis. ► Feasibility of large scale application in the processes of control during the tiles fabrication. ► Feasibility of erosion monitoring during operation of fusion machines. - Abstract: Laser Induced Breakdown Spectroscopy (LIBS) is nowadays a well established tool for qualitative, semi-quantitative and quantitative analyses of surfaces, with micro-destructive characteristics and capabilities for stratigraphy. LIBS is an appealing technique compared with many other types of elemental analysis thanks to the set up versatility facilitating non-invasive and remote analyses, as well as suitability to diagnostics in harsh environments. In this work, LIBS capabilities were used for the determination of the atomic composition of multilayered samples simulating the tiles of plasma facing components in the next generation fusion machines such as ITER. A new experimental setup was designed and realized in order to optimize the characteristics of an LIBS system working at low pressure and remotely, as it should be for an in situ system to be applied in monitoring the erosion and redeposition phenomena occurring on the inner walls of a fusion device. The effects of time delay and laser fluence on LIBS sensitivity at reduced pressure were examined, looking for operational conditions suitable to analytical applications. The quantitative analysis of some atomic species in the superficial layer has been carried out using a Calibration Free (CF) approach in the time

  12. Safety Analysis Report for Packaging (SARP) of the Oak Ridge National Laboratory Garden Carrier No. 2. Revision 1

    International Nuclear Information System (INIS)

    An analytical evaluation of the Oak Ridge National Laboratory Garden Carrier No. 2 was made to demonstrate its compliance with the regulations governing off-site radioactive material shipping packages. The evaluation encompassed five primary categories: structural integrity, thermal resistance, radiation shielding, nuclear criticality safety, and quality assurance. The results of the evaluation show that the cask complies with the applicable regulations

  13. Safety Analysis Report for Packaging (SARP) of the Oak Ridge National Laboratory Garden Carrier No. 2. Revision 1

    Energy Technology Data Exchange (ETDEWEB)

    Box, W.D.; Klima, B.B.; Seagren, R.D.; Shappert, L.B.; Watson, C.D.; Aramayo, G.A.

    1979-08-01

    An analytical evaluation of the Oak Ridge National Laboratory Garden Carrier No. 2 was made to demonstrate its compliance with the regulations governing off-site radioactive material shipping packages. The evaluation encompassed five primary categories: structural integrity, thermal resistance, radiation shielding, nuclear criticality safety, and quality assurance. The results of the evaluation show that the cask complies with the applicable regulations.

  14. Chem-Prep PZT 95/5 for neutron generator applications : development of laboratory-scale powder processing operations.

    Energy Technology Data Exchange (ETDEWEB)

    Montoya, Ted V.; Moore, Roger Howard; Spindle, Thomas Lewis Jr.

    2003-12-01

    Chemical synthesis methods are being developed as a future source of PZT 95/5 powder for neutron generator voltage bar applications. Laboratory-scale powder processes were established to produce PZT billets from these powders. The interactions between calcining temperature, sintering temperature, and pore former content were studied to identify the conditions necessary to produce PZT billets of the desired density and grain size. Several binder systems and pressing aids were evaluated for producing uniform sintered billets with low open porosity. The development of these processes supported the powder synthesis efforts and enabled comparisons between different chem-prep routes.

  15. Analysis and applications of complex networks

    Science.gov (United States)

    Bagrow, James Peter

    This thesis is concerned with three main areas of complex networks research. One is on developing and testing new methods to find communities, especially methods that do not need knowledge of the entire network. The second is on the application of shells and their usage when characterizing and identifying important network properties. Finally, we offer several contributions toward the usage of complex networks as a tool for studying social dynamics. The study of communities, densely interconnected subsets of nodes, is a difficult and important problem. Methods to identify communities are developed which have the rare ability to function with only local knowledge of the network. A new bench-marking and evaluation procedure is introduced to compare the performance of both existing and new local community algorithms. Using shells, we introduce a new matrix structure that allows for quantitative comparison and visualization of networks of all sizes, even extremely large ones. This "portrait" encodes a great deal of information including dimensionality and regularity, and imparts immediate intuition about the network at hand. A distance metric generated by comparing two portraits allows one to test if, e.g., two networks were created by the same underlying generating mechanism. Generalizations to weighted networks are studied, as is applicability to the Graph Isomorphism problem. We introduce the Patron-Artwork model as a new means of generating a distribution of fame or knowledge from an underlying social network, and give a full analysis for a network where all members are neighbors. In addition, the so-called Small World Phenomenon has been studied in the context of social networks, specifically that of Kleinberg navigation. We studied the impact of modifying the underlying Kleinberg lattice by introducing an anisotropy: the lattice is either stretched along one axis or long-distance connections are made more favorable along a preferred direction.

  16. Environmental analysis of the operation of Oak Ridge National Laboratory (X-10 site)

    International Nuclear Information System (INIS)

    An environmental analysis of the operation of the Oak Ridge National Laboratory (ORNL) facilities in Bethel Valley and Melton Valley was conducted to present to the public information concerning the extent to which recognizable effects, or potential effects, on the environment may occur. The analysis addresses current operations of the ORNL X-10 site and completed operations that may continue to have residual effects. Solid wastes from ORNL operations at the Y-12 site which are transported to the X-10 site for burial (e.g., Biology Division animal wastes) are included as part of X-10 site operation. Socioeconomic effects are associated primarily with the communities where employees live and with the Knoxville Bureau of Economic Analysis economic area as a whole. Therefore, ORNL employees at both Y-12 and X-10 sites are included in the ORNL socioeconomic impact analysis. An extensive base of environmental data was accumulated for this report. Over 80 reports related to ORNL facilities and/or operations are cited as well as many open-literature citations. Environmental effects of the operation of ORNL result from operational discharges from the onsite facilities; construction and/or modification of facilities, transportation to and from the site of persons, goods and services; socioeconomic impacts to the local, regional, and general population; and accidental discharges if they should occur. Operational discharges to the environnment are constrained by federal, state, and local regulations and by criteria established by the US Department of Energy to minimize adverse impacts. It is the purpose of this document to evaluate the operation of the ORNL insofar as impacts beyond the site boundary may occur or have the potential for occurrence

  17. Environmental analysis of the operation of Oak Ridge National Laboratory (X-10 site)

    Energy Technology Data Exchange (ETDEWEB)

    Boyle, J.W.; Blumberg, R.; Cotter, S.J.

    1982-11-01

    An environmental analysis of the operation of the Oak Ridge National Laboratory (ORNL) facilities in Bethel Valley and Melton Valley was conducted to present to the public information concerning the extent to which recognizable effects, or potential effects, on the environment may occur. The analysis addresses current operations of the ORNL X-10 site and completed operations that may continue to have residual effects. Solid wastes from ORNL operations at the Y-12 site which are transported to the X-10 site for burial (e.g., Biology Division animal wastes) are included as part of X-10 site operation. Socioeconomic effects are associated primarily with the communities where employees live and with the Knoxville Bureau of Economic Analysis economic area as a whole. Therefore, ORNL employees at both Y-12 and X-10 sites are included in the ORNL socioeconomic impact analysis. An extensive base of environmental data was accumulated for this report. Over 80 reports related to ORNL facilities and/or operations are cited as well as many open-literature citations. Environmental effects of the operation of ORNL result from operational discharges from the onsite facilities; construction and/or modification of facilities, transportation to and from the site of persons, goods and services; socioeconomic impacts to the local, regional, and general population; and accidental discharges if they should occur. Operational discharges to the environnment are constrained by federal, state, and local regulations and by criteria established by the US Department of Energy to minimize adverse impacts. It is the purpose of this document to evaluate the operation of the ORNL insofar as impacts beyond the site boundary may occur or have the potential for occurrence.

  18. Sensitivity analysis and application in exploration geophysics

    Science.gov (United States)

    Tang, R.

    2013-12-01

    In exploration geophysics, the usual way of dealing with geophysical data is to form an Earth model describing underground structure in the area of investigation. The resolved model, however, is based on the inversion of survey data which is unavoidable contaminated by various noises and is sampled in a limited number of observation sites. Furthermore, due to the inherent non-unique weakness of inverse geophysical problem, the result is ambiguous. And it is not clear that which part of model features is well-resolved by the data. Therefore the interpretation of the result is intractable. We applied a sensitivity analysis to address this problem in magnetotelluric(MT). The sensitivity, also named Jacobian matrix or the sensitivity matrix, is comprised of the partial derivatives of the data with respect to the model parameters. In practical inversion, the matrix can be calculated by direct modeling of the theoretical response for the given model perturbation, or by the application of perturbation approach and reciprocity theory. We now acquired visualized sensitivity plot by calculating the sensitivity matrix and the solution is therefore under investigation that the less-resolved part is indicated and should not be considered in interpretation, while the well-resolved parameters can relatively be convincing. The sensitivity analysis is hereby a necessary and helpful tool for increasing the reliability of inverse models. Another main problem of exploration geophysics is about the design strategies of joint geophysical survey, i.e. gravity, magnetic & electromagnetic method. Since geophysical methods are based on the linear or nonlinear relationship between observed data and subsurface parameters, an appropriate design scheme which provides maximum information content within a restricted budget is quite difficult. Here we firstly studied sensitivity of different geophysical methods by mapping the spatial distribution of different survey sensitivity with respect to the

  19. Analytical protocols for sampling extended areas: Comparing simulated field analysis to laboratory analysis for metal characterization of soils

    International Nuclear Information System (INIS)

    This paper describes a methodology for sampling large areas taking into account QA and QC protocols, in order to ensure representative samples. The proposed methodology covers a general approach to planning field investigations that could be useful for any type of environmental study. Procedures for sampling planning, a sampling protocols checklist, sampling devices and elements, transportation and blank sample requirements are presented. The final objective is to design a sampling strategy that will eventually allow the use of portable EDXRF instruments for in situ use in soil analysis. This methodology will be applied for a soil characterization study in the zone of Campana, Argentina, in order to identify possible contamination taking into account the industrial activity in this area. Sample concentrations were evaluated in the laboratory using an EDXRF spectrometer with radioisotope excitation. (author)

  20. Voxel-Based LIDAR Analysis and Applications

    Science.gov (United States)

    Hagstrom, Shea T.

    One of the greatest recent changes in the field of remote sensing is the addition of high-quality Light Detection and Ranging (LIDAR) instruments. In particular, the past few decades have been greatly beneficial to these systems because of increases in data collection speed and accuracy, as well as a reduction in the costs of components. These improvements allow modern airborne instruments to resolve sub-meter details, making them ideal for a wide variety of applications. Because LIDAR uses active illumination to capture 3D information, its output is fundamentally different from other modalities. Despite this difference, LIDAR datasets are often processed using methods appropriate for 2D images and that do not take advantage of its primary virtue of 3-dimensional data. It is this problem we explore by using volumetric voxel modeling. Voxel-based analysis has been used in many applications, especially medical imaging, but rarely in traditional remote sensing. In part this is because the memory requirements are substantial when handling large areas, but with modern computing and storage this is no longer a significant impediment. Our reason for using voxels to model scenes from LIDAR data is that there are several advantages over standard triangle-based models, including better handling of overlapping surfaces and complex shapes. We show how incorporating system position information from early in the LIDAR point cloud generation process allows radiometrically-correct transmission and other novel voxel properties to be recovered. This voxelization technique is validated on simulated data using the Digital Imaging and Remote Sensing Image Generation (DIRSIG) software, a first-principles based ray-tracer developed at the Rochester Institute of Technology. Voxel-based modeling of LIDAR can be useful on its own, but we believe its primary advantage is when applied to problems where simpler surface-based 3D models conflict with the requirement of realistic geometry. To

  1. Creating White Dwarf Photospheres in the Laboratory: Strategy for Astrophysics Applications

    CERN Document Server

    Falcon, Ross E; Bailey, J E; Ellis, J L; Carlson, A L; Gomez, T A; Montgomery, M H; Winget, D E; Chen, E Y; Gomez, M R; Nash, T J; Pille, T M

    2012-01-01

    Astrophysics experiments by Falcon et al. to create white dwarf photospheres in the laboratory are currently underway. The experimental platform measures Balmer line profiles of a radiation-driven, pure hydrogen plasma in emission and in absorption for conditions at T_e ~ 1 eV, n_e ~ 10^17 cm^-3. These will be used to compare and test line broadening theories used in white dwarf atmosphere models. The flexibility of the platform allows us to expand the direction of our experiments using other compositions. We discuss future prospects such as exploring helium plasmas and carbon/oxygen plasmas relevant to the photospheres of DBs and hot DQs, respectively.

  2. Application of Six Sigma Theory in Process Reengineering of Food Safety Monitoring Laboratory

    Institute of Scientific and Technical Information of China (English)

    Suzhen; ZHU; Qianqian; LIU; Chao; LIN; Lei; WANG; Yun; MA

    2014-01-01

    Based on the survey of customer satisfaction,the authors found existing problems in inspection process of the food safety monitoring laboratory A( including the whole process from receiving samples to issue of inspection report),and determined solutions using flow chart supplied by sig sigma( 6σ) theory. Through comparing overall effect before and after improvement of the inspection process,it is proved that 6σmanagement theory is a new effective management tool for eliminating errors,simplifying process,and meeting requirements of customers to the maximal extent.

  3. The significance of indirect costs—application to clinical laboratory test economics using computer facilities

    OpenAIRE

    Hindriks, F. R.; Bosman, A.; Rademaker, P. F.

    1989-01-01

    The significance of indirect costs in the cost price calculation of clinical chemistry laboratory tests by way of the production centres method has been investigated. A cost structure model based on the ‘production centres’ method, the Academisch Ziekenhuis Groningen (AZG) 1-2-3 model, is used for the calculation of cost and cost prices as an add-in tool to the spreadsheet program Lotus 1-2-3. The system specifications of the AZG 1-2-3 cost structure model have been extended with facilities t...

  4. Clinical laboratorial analysis of 168 patients with galactorrhea from different etiologic conditions

    International Nuclear Information System (INIS)

    This paper evaluated the data of 168 patients with galactorrhea throught factorial analysis. This method consists, initially, of an intercorrelation analysis, which serves as a base for the determination of a number of factors, one of them, which could be described as the patient's risk of having a pituitary tumour. This factor was formed, basically, by four elements: the existence of radiological changes, head pain, menstrual irregularities and the prolactin level. After the global study, the patients were analysed within the etiological subgroups, in several clinical and laboratorial aspects, as menstrual abnormalities, duration of the galactorrhea, prolactin level, dynamic tests to evaluate the prolactin secretion an the pituitary reserve, and by the therapeutic aspect. The results of the tests that measures the prolactin secretion were analysed, also, in terms of it's basal hormonal level, and have shown to be more dependent on them, than on the etiological group. We have compared the surgical, radioactive and bromocriptine treatment of pituitary tumours. There wasn't a satisfactory cure rate in any of them, which reinforces the need of an earlier recognition of these tumours. (author)

  5. Improvement of the quality of work in a biochemistry laboratory via measurement system analysis.

    Science.gov (United States)

    Chen, Ming-Shu; Liao, Chen-Mao; Wu, Ming-Hsun; Lin, Chih-Ming

    2016-10-31

    An adequate and continuous monitoring of operational variations can effectively reduce the uncertainty and enhance the quality of laboratory reports. This study applied the evaluation rule of the measurement system analysis (MSA) method to estimate the quality of work conducted in a biochemistry laboratory. Using the gauge repeatability & reproducibility (GR&R) approach, variations in quality control (QC) data among medical technicians in conducting measurements of five biochemical items, namely, serum glucose (GLU), aspartate aminotransferase (AST), uric acid (UA), sodium (Na) and chloride (Cl), were evaluated. The measurements of the five biochemical items showed different levels of variance among the different technicians, with the variances in GLU measurements being higher than those for the other four items. The ratios of precision-to-tolerance (P/T) for Na, Cl and GLU were all above 0.5, implying inadequate gauge capability. The product variation contribution of Na was large (75.45% and 31.24% in normal and abnormal QC levels, respectively), which showed that the impact of insufficient usage of reagents could not be excluded. With regard to reproducibility, high contributions (of more than 30%) of variation for the selected items were found. These high operator variation levels implied that the possibility of inadequate gauge capacity could not be excluded. The ANOVA of GR&R showed that the operator variations in GLU measurements were significant (F=5.296, P=0.001 in the normal level and F=3.399, P=0.015 in the abnormal level, respectively). In addition to operator variations, product variations of Na were also significant for both QC levels. The heterogeneity of variance for the five technicians showed significant differences for the Na and Cl measurements in the normal QC level. The accuracy of QC for five technicians was identified for further operational improvement. This study revealed that MSA can be used to evaluate product and personnel errors and to

  6. Laboratory investigation and phylogenetic analysis of an imported Middle East respiratory syndrome coronavirus case in Greece.

    Directory of Open Access Journals (Sweden)

    Athanasios Kossyvakis

    Full Text Available Rapid and reliable laboratory diagnosis of persons suspected of Middle East respiratory syndrome coronavirus (MERS-CoV infection is important for timely implementation of infection control practices and disease management. In addition, monitoring molecular changes in the virus can help elucidate chains of transmission and identify mutations that might influence virus transmission efficiency. This was illustrated by a recent laboratory investigation we conducted on an imported MERS-CoV case in Greece. Two oropharyngeal swab specimens were collected on the 1st and 2nd day of patient hospitalization and tested using two real-time RT-PCR (rRT-PCR assays targeting the UpE and Orf-1a regions of the MERS-CoV genome and RT-PCR and partial sequencing of RNA-dependent RNA polymerase and nucleocapsid genes. Serum specimens were also collected and serological test were performed. Results from the first swab sample were inconclusive while the second swab was strongly positive for MERS-CoV RNA by rRT-PCR and confirmed positive by RT-PCR and partial gene sequencing. Positive serologic test results further confirmed MERS-CoV infection. Full-length nucleocapsid and spike gene coding sequences were later obtained from the positive swab sample. Phylogenetic analysis revealed that the virus was closely related to recent human-derived MERS-CoV strains obtained in Jeddah and Makkah, Saudi Arabia, in April 2014 and dromedary camels in Saudi Arabia and Qatar. These findings were consistent with the patient's history. We also identified a unique amino acid substitution in the spike receptor binding domain that may have implications for receptor binding efficiency. Our initial inconclusive rRT-PCR results highlight the importance of collecting multiple specimens from suspect MERS-CoV cases and particularly specimens from the lower respiratory tract.

  7. Illuminating the Undergraduate Behavioral Neuroscience Laboratory: A Guide for the in vivo Application of Optogenetics in Mammalian Model Organisms

    Science.gov (United States)

    Roberts, Bradley M.; Jarrin, Sarah E.; Mathur, Brian N.; Bailey, Aileen M.

    2016-01-01

    Optogenetics is a technology that is growing rapidly in neuroscience, establishing itself as a fundamental investigative tool. As this tool is increasingly utilized across the neuroscience community and is one of the primary research techniques being presented at neuroscience conferences and in journals, we believe that it is important that this technology is introduced into the undergraduate neuroscience research laboratory. While there has been a significant body of work concentrated to deploy optogenetics in invertebrate model organisms, little to no work has focused on brining this technology to mammalian model organisms in undergraduate neuroscience laboratories. The establishment of in vivo optogenetics could provide for high-impact independent research projects for upper-level undergraduate students. Here we review the considerations for establishing in vivo optogenetics with the use of rodents in an undergraduate laboratory setting and provide some cost-saving guidelines to assist in making optogenetic technologies financially accessible. We discuss opsin selection, cell-specific opsin expression strategies, species selection, experimental design, selection of light delivery systems, and the construction of implantable optical fibers for the application of in vivo optogenetics in rodents. PMID:27385919

  8. Illuminating the Undergraduate Behavioral Neuroscience Laboratory: A Guide for the in vivo Application of Optogenetics in Mammalian Model Organisms.

    Science.gov (United States)

    Roberts, Bradley M; Jarrin, Sarah E; Mathur, Brian N; Bailey, Aileen M

    2016-01-01

    Optogenetics is a technology that is growing rapidly in neuroscience, establishing itself as a fundamental investigative tool. As this tool is increasingly utilized across the neuroscience community and is one of the primary research techniques being presented at neuroscience conferences and in journals, we believe that it is important that this technology is introduced into the undergraduate neuroscience research laboratory. While there has been a significant body of work concentrated to deploy optogenetics in invertebrate model organisms, little to no work has focused on brining this technology to mammalian model organisms in undergraduate neuroscience laboratories. The establishment of in vivo optogenetics could provide for high-impact independent research projects for upper-level undergraduate students. Here we review the considerations for establishing in vivo optogenetics with the use of rodents in an undergraduate laboratory setting and provide some cost-saving guidelines to assist in making optogenetic technologies financially accessible. We discuss opsin selection, cell-specific opsin expression strategies, species selection, experimental design, selection of light delivery systems, and the construction of implantable optical fibers for the application of in vivo optogenetics in rodents. PMID:27385919

  9. Illuminating the Undergraduate Behavioral Neuroscience Laboratory: A Guide for the in vivo Application of Optogenetics in Mammalian Model Organisms.

    Science.gov (United States)

    Roberts, Bradley M; Jarrin, Sarah E; Mathur, Brian N; Bailey, Aileen M

    2016-01-01

    Optogenetics is a technology that is growing rapidly in neuroscience, establishing itself as a fundamental investigative tool. As this tool is increasingly utilized across the neuroscience community and is one of the primary research techniques being presented at neuroscience conferences and in journals, we believe that it is important that this technology is introduced into the undergraduate neuroscience research laboratory. While there has been a significant body of work concentrated to deploy optogenetics in invertebrate model organisms, little to no work has focused on brining this technology to mammalian model organisms in undergraduate neuroscience laboratories. The establishment of in vivo optogenetics could provide for high-impact independent research projects for upper-level undergraduate students. Here we review the considerations for establishing in vivo optogenetics with the use of rodents in an undergraduate laboratory setting and provide some cost-saving guidelines to assist in making optogenetic technologies financially accessible. We discuss opsin selection, cell-specific opsin expression strategies, species selection, experimental design, selection of light delivery systems, and the construction of implantable optical fibers for the application of in vivo optogenetics in rodents.

  10. Some Applications of Fast Neutron Activation Analysis of Oxygen

    Energy Technology Data Exchange (ETDEWEB)

    Owrang, Farshid

    2003-07-01

    In this thesis we focus on applications of neutron activation of oxygen for several purposes: A) measuring the water level in a laboratory tank, B) measuring the water flow in a pipe system set-up, C) analysing the oxygen in combustion products formed in a modern gasoline SI engine, and D) measuring on-line the amount of oxygen in bulk liquids. A) Water level measurements. The purpose of this work was to perform radiation based water level measurements, aimed at nuclear reactor vessels, on a laboratory scale. A laboratory water tank was irradiated by fast neutrons from a neutron generator. The water was activated at different water levels and the water level was decreased. The produced gamma radiation was measured using two detectors at different heights. The results showed that the method is suitable for measurement of water level and that a relatively small experimental set-up can be used for developing methods for water level measurements in real boiling water reactors based on activated oxygen in the water. B) Water flows in pipe. The goal in this work was to investigate the asymmetric distribution of activity in flow measurements with pulsed neutron activation (PNA) in a laboratory piping system. Earlier investigations had shown a discrepancy between the measured velocity of the activated water by PNA and the true mean velocity in the pipe. This discrepancy decreased with larger distances from the activation point. It was speculated that the induced activity in the pipe did not distribute homogeneously. With inhomogeneous radial distribution of activity in combination with a velocity profile in the pipe, the activated water may not have the same velocity as the mean velocity of water in the pipe. To study this phenomenon, a water-soluble colour was injected into a transparent pipe for simulation of the transport of the activated water. The radial concentration of the colour, at different distances from the activation point, was determined. The result

  11. Comparison between traditional laboratory tests, permeability measurements and CT-based fluid flow modelling for cultural heritage applications.

    Science.gov (United States)

    De Boever, Wesley; Bultreys, Tom; Derluyn, Hannelore; Van Hoorebeke, Luc; Cnudde, Veerle

    2016-06-01

    In this paper, we examine the possibility to use on-site permeability measurements for cultural heritage applications as an alternative for traditional laboratory tests such as determination of the capillary absorption coefficient. These on-site measurements, performed with a portable air permeameter, were correlated with the pore network properties of eight sandstones and one granular limestone that are discussed in this paper. The network properties of the 9 materials tested in this study were obtained from micro-computed tomography (μCT) and compared to measurements and calculations of permeability and the capillary absorption rate of the stones under investigation, in order to find the correlation between pore network characteristics and fluid management characteristics of these sandstones. Results show a good correlation between capillary absorption, permeability and network properties, opening the possibility of using on-site permeability measurements as a standard method in cultural heritage applications.

  12. Applications of low-cost radio-controlled airplanes to environmental restoration at Oak Ridge National Laboratory

    International Nuclear Information System (INIS)

    The US DOE is endeavoring to clean up contamination created by the disposal of chemical and nuclear waste on the Oak Ridge Reservation (ORR), Tennessee, with an emphasis on minimizing off-site migration of contaminated surface and ground water. The task is complicated by inadequate disposal records and by the complexity of the local geology. Remote sensing data, including aerial photography and geophysics, have played an important role in the ORR site characterization. Are there advantages to collecting remote sensing data using Unmanned Aerial Vehicles (UAV's)? In this paper, I will discuss the applications of UAV's being explored at Oak Ridge National Laboratory (ORNL) under the sponsorship of the Department of Energy's Office of Science and technology. These applications are : aerial photography, magnetic mapping, and Very Low Frequency (VLF) electromagnetic mapping

  13. An Inexpensive Biophysics Laboratory Apparatus for Acquiring Pulmonary Function Data with Clinical Applications

    Science.gov (United States)

    Harkay, Gregory

    2001-11-01

    Interest on the part of the Physics Department at KSC in developing a computer interfaced lab with appeal to biology majors and a need to perform a clinical pulmonological study to fulfill a biology requirement led to the author's undergraduate research project in which a recording spirometer (typical cost: $15K) was constructed from readily available materials and a typical undergraduate lab computer interface. Simple components, including a basic photogate circuit, CPU fan, and PVC couplings were used to construct an instrument for measuring flow rates as a function of time. Pasco software was used to build an experiment in which data was collected and integration performed such that one could obtain accurate values for FEV1 (forced expiratory volume for one second) and FVC (forced vital capacity) and their ratio for a large sample of subjects. Results were compared to published norms and subjects with impaired respiratory mechanisms identified. This laboratory exercise is one with which biology students can clearly identify and would be a robust addition to the repertoire for a HS or college physics or biology teaching laboratory.

  14. Digraph matrix analysis applications to systems interactions

    Energy Technology Data Exchange (ETDEWEB)

    Alesso, H.P.; Altenbach, T.; Lappa, D.; Kimura, C.; Sacks, I.J.; Ashmore, B.C.; Fromme, D.; Smith, C.F.; Williams, W.

    1984-01-01

    Complex events such as Three Mile Island-2, Brown's Ferry-3 and Crystal River-3 have demonstrated that previously unidentified system interdependencies can be important to safety. A major aspect of these events was dependent faults (common cause/mode failures). The term systems interactions has been introduced by the Nuclear Regulatory Commission (NRC) to identify the concepts of spatial and functional coupling of systems which can lead to system interdependencies. Spatial coupling refers to dependencies resulting from a shared environmental condition; functional coupling refers to both dependencies resulting from components shared between safety and/or support systems, and to dependencies involving human actions. The NRC is currently developing guidelines to search for and evaluate adverse systems interactions at light water reactors. One approach utilizes graph theoretical methods and is called digraph matrix analysis (DMA). This methodology has been specifically tuned to the systems interaction problem. The objective of this paper is to present results from two DMA applications and to contrast them with the results from more traditional fault tree approaches.

  15. Decision analysis applications and the CERCLA process

    Energy Technology Data Exchange (ETDEWEB)

    Purucker, S.T.; Lyon, B.F. [Oak Ridge National Lab., TN (United States). Risk Analysis Section]|[Univ. of Tennessee, Knoxville, TN (United States)

    1994-06-01

    Quantitative decision methods can be developed during environmental restoration projects that incorporate stakeholder input and can complement current efforts that are undertaken for data collection and alternatives evaluation during the CERCLA process. These decision-making tools can supplement current EPA guidance as well as focus on problems that arise as attempts are made to make informed decisions regarding remedial alternative selection. In examining the use of such applications, the authors discuss the use of decision analysis tools and their impact on collecting data and making environmental decisions from a risk-based perspective. They will look at the construction of objective functions for quantifying different risk-based perspective. They will look at the construction of objective functions for quantifying different risk-based decision rules that incorporate stakeholder concerns. This represents a quantitative method for implementing the Data Quality Objective (DQO) process. These objective functions can be expressed using a variety of indices to analyze problems that currently arise in the environmental field. Examples include cost, magnitude of risk, efficiency, and probability of success or failure. Based on such defined objective functions, a project can evaluate the impact of different risk and decision selection strategies on data worth and alternative selection.

  16. Application of sigma metrics for the assessment of quality control in clinical chemistry laboratory in Ghana: A pilot study

    Directory of Open Access Journals (Sweden)

    Justice Afrifa

    2015-01-01

    Full Text Available Background: Sigma metrics provide a uniquely defined scale with which we can assess the performance of a laboratory. The objective of this study was to assess the internal quality control (QC in the clinical chemistry laboratory of the University of Cape Cost Hospital (UCC using the six sigma metrics application. Materials and Methods: We used commercial control serum [normal (L1 and pathological (L2] for validation of quality control. Metabolites (glucose, urea, and creatinine, lipids [triglycerides (TG, total cholesterol, high-density lipoprotein cholesterol (HDL-C], enzymes [alkaline phosphatase (ALP, alanine aminotransferase (AST], electrolytes (sodium, potassium, chloride and total protein were assessed. Between-day imprecision (CVs, inaccuracy (Bias and sigma values were calculated for each control level. Results: Apart from sodium (2.40%, 3.83%, chloride (2.52% and 2.51% for both L1 and L2 respectively, and glucose (4.82%, cholesterol (4.86% for L2, CVs for all other parameters (both L1 and L2 were >5%. Four parameters (HDL-C, urea, creatinine and potassium achieved sigma levels >1 for both controls. Chloride and sodium achieved sigma levels >1 for L1 but 1 for L2. Glucose and ALP achieved a sigma level >1 for both control levels whereas TG achieved a sigma level >2 for both control levels. Conclusion: Unsatisfactory sigma levels (<3 where achieved for all parameters using both control levels, this shows instability and low consistency of results. There is the need for detailed assessment of the analytical procedures and the strengthening of the laboratory control systems in order to achieve effective six sigma levels for the laboratory.

  17. Supplement analysis for Greenville Gate access to Kirschbaum Field at Lawrence Livermore National Laboratory

    International Nuclear Information System (INIS)

    The National Ignition Facility (NIF) Program proposes to provide additional access to the Kirschbaum Field construction laydown area. This additional access would alleviate traffic congestion at the East Gate entrance to Lawrence Livermore National Laboratory (LLNL) from Greenville Road during periods of heavy construction for the NIF. The new access would be located along the northeastern boundary of LLNL, about 305 m (1,000 ft) north of the East Gate entrance. The access road would extend from Greenville Road to the Kirschbaum Field construction laydown area and would traverse an existing storm water drainage channel. Two culverts, side by side, and a compacted road base would be installed across the channel. The security fence that runs parallel to Greenville Road would be modified to accommodate this new entrance and a vehicle gate would be installed at the entrance of Kirschbaum Field. The exiting shoulder along Greenville Road would be converted into a new turn lane for trucks entering the new gate. This analysis evaluates the impacts of constructing the Kirschbaum Field bridge and access gate at a different location than was analyzed in the NIF Project specific Analysis in the Final Programmatic environmental Impact Statement for Stockpile Stewardship and Management (SS and M PEIS) published in September 1996 (DOE/EIS-0236) and the Record of Decision published on December 19, 1996. Issues of concern addressed in this supplement analysis include potential impacts to wetlands downstream of the access bridge, potential impacts to the California red-legged frog (Rana aurora draytonii) listed as threatened on the federal listing pursuant to the Endangered Species Act of 1974, and potential impacts on the 100-yr floodplain along the Arroyo Las Positas

  18. Supplement analysis for Greenville Gate access to Kirschbaum Field at Lawrence Livermore National Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-12-05

    The National Ignition Facility (NIF) Program proposes to provide additional access to the Kirschbaum Field construction laydown area. This additional access would alleviate traffic congestion at the East Gate entrance to Lawrence Livermore National Laboratory (LLNL) from Greenville Road during periods of heavy construction for the NIF. The new access would be located along the northeastern boundary of LLNL, about 305 m (1,000 ft) north of the East Gate entrance. The access road would extend from Greenville Road to the Kirschbaum Field construction laydown area and would traverse an existing storm water drainage channel. Two culverts, side by side, and a compacted road base would be installed across the channel. The security fence that runs parallel to Greenville Road would be modified to accommodate this new entrance and a vehicle gate would be installed at the entrance of Kirschbaum Field. The exiting shoulder along Greenville Road would be converted into a new turn lane for trucks entering the new gate. This analysis evaluates the impacts of constructing the Kirschbaum Field bridge and access gate at a different location than was analyzed in the NIF Project specific Analysis in the Final Programmatic environmental Impact Statement for Stockpile Stewardship and Management (SS and M PEIS) published in September 1996 (DOE/EIS-0236) and the Record of Decision published on December 19, 1996. Issues of concern addressed in this supplement analysis include potential impacts to wetlands downstream of the access bridge, potential impacts to the California red-legged frog (Rana aurora draytonii) listed as threatened on the federal listing pursuant to the Endangered Species Act of 1974, and potential impacts on the 100-yr floodplain along the Arroyo Las Positas.

  19. Application of solid phase microextraction and needle trap device with silica composite of carbon nanotubes for determination of perchloroethylene in laboratory and field.

    Science.gov (United States)

    Heidari, Mahmoud; Attari, Seyed Ghavameddin; Rafieiemam, Maryam

    2016-04-28

    In this paper solid phase microextraction (SPME) and needle trap device (NTD) as two in-progress air monitoring techniques was applied with silylated composite of carbon nanotubes for sampling and analysis of perchloroethylene in air. Application of SPME and NTD with proposed nano-structured sorbent was investigated under different laboratory and experimental parameters and compared to the SPME and NTD with CAR/PDMS. Finally the two samplers contained nano-sorbent used as a field sampler for sampling and analysis of perchloroethylene in dry cleaning. Results revealed that silica composite form of CNTs showed better performance for adsorbent of perchloroethylene. SPME and NTD with proposed sorbent was demonstrated better responses in lower levels of temperature and relative humidity. For 5 days from sampling the relative responses were more than 97% and 94% for NTD and SPME, respectively. LOD were 0.023 and 0.014 ng mL(-1) for SPME coated CNTs/SC and CAR/PDMS, and 0.014 and 0.011 ng mL(-1) for NTD packed with CNTs/SC and CAR/PDMS, respectively. And for consecutive analysis RSD were 3.9-6.7% in laboratory and 4.43-6.4% in the field. In the field study, NTD was successfully applied for determining of the PCE in dry cleaning. The results show that the NTD packed with nanomaterial is a reliable and effective approach for the sampling and analysis of volatile compounds in air. PMID:27046209

  20. Analysis of the spatiotemporal planform dynamics of braided rivers: a novel laboratory investigation

    Science.gov (United States)

    Redolfi, Marco; Bertoldi, Walter; Tubino, Marco

    2016-04-01

    Braided rivers are highly dynamic, labile environments which experience significant morphological changes even during moderate flow events. Recent remote sensing techniques enable to monitor the river morphology with great detail. However, capturing the rapid morphological changes of a large river with sufficient temporal and spatial resolution is still very challenging. As a consequence, quantitative analysis of the braided channel dynamics is often limited to local processes (e.g. a single bifurcation or confluence) and short time periods (e.g. a single flood). This work aims at providing quantitative, statistical description of the channel network dynamics in a braided network at larger spatial and temporal scales, namely the reach scale and the multiple flood scale. This can be achieved using a new technique based on time lapse imagery that we recently developed at the University of Trento. This technique provides high frequency, two dimensional maps of the bed load transport in a large laboratory model, thus allowing to capture the spatiotemporal variability of the transport processes with unprecedented detail. We performed a set of laboratory experiments in a 23 m long, 3 m wide flume, sand bed load flume, where self-formed braided networks can be reproduced. We run several experiments with different discharges and channel widths, lasting for a long time (from 20 to 65 hours) to enable a robust statistical description of the equilibrium morphodynamics. High-resolution pictures were taken at 1 min interval from two SLR cameras, then rectified and merged in order to cover a 7 m long reach. We processed a large number of images to obtain maps of bed load transport, and we developed an algorithm to automatically identifies active (i.e. transporting) channels, bifurcations and confluences. The statistical analysis we performed includes two dimensional correlations, spatial and temporal scales, channel migration rate, avulsion frequency, bank erosion rate. This

  1. Human Papillomavirus (HPV) Genotyping: Automation and Application in Routine Laboratory Testing

    Science.gov (United States)

    Torres, M; Fraile, L; Echevarria, JM; Hernandez Novoa, B; Ortiz, M

    2012-01-01

    A large number of assays designed for genotyping human papillomaviruses (HPV) have been developed in the last years. They perform within a wide range of analytical sensitivity and specificity values for the different viral types, and are used either for diagnosis, epidemiological studies, evaluation of vaccines and implementing and monitoring of vaccination programs. Methods for specific genotyping of HPV-16 and HPV-18 are also useful for the prevention of cervical cancer in screening programs. Some commercial tests are, in addition, fully or partially automated. Automation of HPV genotyping presents advantages such as the simplicity of the testing procedure for the operator, the ability to process a large number of samples in a short time, and the reduction of human errors from manual operations, allowing a better quality assurance and a reduction of cost. The present review collects information about the current HPV genotyping tests, with special attention to practical aspects influencing their use in clinical laboratories. PMID:23248734

  2. Chemval project report on stage 2: application of speciation models to laboratory and field data sets

    International Nuclear Information System (INIS)

    This report describes the results of Chemval Stage 2, an international chemical model validation exercise involving the active participation of 14 organizations within EC countries, Sweden, Switzerland and Finland. Four different sites have been studied, representing a range of host rock types and proposed disposal facilities. It details the methodology employed and results obtained for 19 test cases of varying complexity, devised to allow comparison between modelling results and experimental measurements. Recommendations are made for enhancement of models and thermodynamic databases employed, as well as for the collection of field/laboratory data geared to the needs of model validation. This report complements a previous one, ref. EUR 12237 EN, devoted to the verification of speciation models. The work is part of the Community's Mirage project - Second phase, on migration of radionuclides in the geosphere

  3. Laboratory oscillator strengths of Sc I in the near-infrared region for astrophysical applications

    CERN Document Server

    Pehlivan, A; Hartman, H

    2015-01-01

    Context. Atomic data is crucial for astrophysical investigations. To understand the formation and evolution of stars, we need to analyse their observed spectra. Analysing a spectrum of a star requires information about the properties of atomic lines, such as wavelengths and oscillator strengths. However, atomic data of some elements are scarce, particularly in the infrared region, and this paper is part of an effort to improve the situation on near-IR atomic data. Aims. This paper investigates the spectrum of neutral scandium, Sc i, from laboratory measurements and improves the atomic data of Sc i lines in the infrared region covering lines in R, I, J, and K bands. Especially, we focus on measuring oscillator strengths for Sc i lines connecting the levels with 4p and 4s configurations. Methods. We combined experimental branching fractions with radiative lifetimes from the literature to derive oscillator strengths (f - values). Intensity-calibrated spectra with high spectral resolution were recorded with Fouri...

  4. Neutron Imaging at the Oak Ridge National Laboratory: Application to Biological Research

    Energy Technology Data Exchange (ETDEWEB)

    Bilheux, Hassina Z [ORNL; Cekanova, Maria [University of Tennessee, Knoxville (UTK); Bilheux, Jean-Christophe [ORNL; Bailey, William Barton [ORNL; Keener, Wylie S [ORNL; Davis, Larry E [ORNL; Herwig, Kenneth W [ORNL

    2014-01-01

    The Oak Ridge National Laboratory Neutron Sciences Directorate (NScD) has recently installed a neutron imaging beamline at the High Flux Isotope Reactor (HFIR) cold guide hall. The CG-1D beamline supports a broad range of user research spanning from engineering to material research, energy storage, additive manufacturing, vehicle technologies, archaeology, biology, and plant physiology. The beamline performance (spatial resolution, field of view, etc.) and its utilization for biological research are presented. The NScD is also considering a proposal to build the VENUS imaging beamline (beam port 10) at the Spallation Neutron Source (SNS). Unlike CG-1D which provides cold neutrons, VENUS will offer a broad range of neutron wavelengths, from epithermal to cold, and enhanced contrast mechanisms. This new capability will also enable the imaging of thicker biological samples than is currently available at CG-1D. A brief overview of the VENUS capability for biological research is discussed.

  5. Methodology assessment and recommendations for the Mars science laboratory launch safety analysis.

    Energy Technology Data Exchange (ETDEWEB)

    Sturgis, Beverly Rainwater; Metzinger, Kurt Evan; Powers, Dana Auburn; Atcitty, Christopher B.; Robinson, David B; Hewson, John C.; Bixler, Nathan E.; Dodson, Brian W.; Potter, Donald L.; Kelly, John E.; MacLean, Heather J.; Bergeron, Kenneth Donald (Sala & Associates); Bessette, Gregory Carl; Lipinski, Ronald J.

    2006-09-01

    The Department of Energy has assigned to Sandia National Laboratories the responsibility of producing a Safety Analysis Report (SAR) for the plutonium-dioxide fueled Multi-Mission Radioisotope Thermoelectric Generator (MMRTG) proposed to be used in the Mars Science Laboratory (MSL) mission. The National Aeronautic and Space Administration (NASA) is anticipating a launch in fall of 2009, and the SAR will play a critical role in the launch approval process. As in past safety evaluations of MMRTG missions, a wide range of potential accident conditions differing widely in probability and seventy must be considered, and the resulting risk to the public will be presented in the form of probability distribution functions of health effects in terms of latent cancer fatalities. The basic descriptions of accident cases will be provided by NASA in the MSL SAR Databook for the mission, and on the basis of these descriptions, Sandia will apply a variety of sophisticated computational simulation tools to evaluate the potential release of plutonium dioxide, its transport to human populations, and the consequent health effects. The first step in carrying out this project is to evaluate the existing computational analysis tools (computer codes) for suitability to the analysis and, when appropriate, to identify areas where modifications or improvements are warranted. The overall calculation of health risks can be divided into three levels of analysis. Level A involves detailed simulations of the interactions of the MMRTG or its components with the broad range of insults (e.g., shrapnel, blast waves, fires) posed by the various accident environments. There are a number of candidate codes for this level; they are typically high resolution computational simulation tools that capture details of each type of interaction and that can predict damage and plutonium dioxide release for a range of choices of controlling parameters. Level B utilizes these detailed results to study many

  6. An Assessment of the Application of Psychomotor Learning Theory Constructs in Preclinical Laboratory Instruction.

    Science.gov (United States)

    Feil, Philip

    1992-01-01

    A survey investigated the application of constructs related to acquisition of psychomotor skills in the preclinical dental curriculum in 220 departments of operative dentistry, fixed and removable prosthodontics, pediatric dentistry, and periodontics. Results indicate insufficient opportunities for students to define desired outcomes and…

  7. Applications of human error analysis to aviation and space operations

    Energy Technology Data Exchange (ETDEWEB)

    Nelson, W.R.

    1998-07-01

    For the past several years at the Idaho National Engineering and Environmental Laboratory (INEEL) we have been working to apply methods of human error analysis to the design of complex systems. We have focused on adapting human reliability analysis (HRA) methods that were developed for Probabilistic Safety Assessment (PSA) for application to system design. We are developing methods so that human errors can be systematically identified during system design, the potential consequences of each error can be assessed, and potential corrective actions (e.g. changes to system design or procedures) can be identified. These applications lead to different requirements when compared with HR.As performed as part of a PSA. For example, because the analysis will begin early during the design stage, the methods must be usable when only partial design information is available. In addition, the ability to perform numerous ''what if'' analyses to identify and compare multiple design alternatives is essential. Finally, since the goals of such human error analyses focus on proactive design changes rather than the estimate of failure probabilities for PRA, there is more emphasis on qualitative evaluations of error relationships and causal factors than on quantitative estimates of error frequency. The primary vehicle we have used to develop and apply these methods has been a series of projects sponsored by the National Aeronautics and Space Administration (NASA) to apply human error analysis to aviation operations. The first NASA-sponsored project had the goal to evaluate human errors caused by advanced cockpit automation. Our next aviation project focused on the development of methods and tools to apply human error analysis to the design of commercial aircraft. This project was performed by a consortium comprised of INEEL, NASA, and Boeing Commercial Airplane Group. The focus of the project was aircraft design and procedures that could lead to human errors during

  8. Improvement of interpretation in cystic fibrosis clinical laboratory reports: longitudinal analysis of external quality assessment data

    OpenAIRE

    Berwouts, Sarah; Girodon, Emmanuelle; Schwarz, Martin; Stuhrmann, Manfred; Morris, Michael A.; Dequeker, Elisabeth

    2012-01-01

    Participation in external quality assessment (EQA) is a key element of quality assurance in medical laboratories. In genetics EQA, both genotyping and interpretation are assessed. We aimed to analyse changes in the completeness of interpretation in clinical laboratory reports of the European cystic fibrosis EQA scheme and to investigate the effect of the number of previous participations, laboratory accreditation/certification status, setting and test volume. We distributed similar versions o...

  9. Advancements and application of immunosensors in the analysis of food contaminants

    Directory of Open Access Journals (Sweden)

    MD. SHOFIUL AZAM

    2014-11-01

    Full Text Available Azam MS, Rahman MRT, Lou Z, Tang Y, Raqib SM, Jothi JS. 2014. Advancements and application of immunosensors in the analysis of food contaminants. Nusantara Bioscience 6: 186-195. Immunosensors are affinity ligand-based biosensor solid-state devices in which the immunochemical reaction is coupled to a transducer. The fundamental basis of all immunosensors is the specificity of the molecular recognition of antigens by antibodies to form a stable complex. This is similar to the immunoassay methodology. Immunosensors can be categorized based on the detection principle applied. The main developments are electrochemical, optical, and microgravimetric immunosensors. In contrast to immunoassay, modern transducer technology enables the label-free detection and quantification of the immune complex. The analysis of trace substances in environmental science, pharmaceutical and food industries is a challenge since many of these applications demand a continuous monitoring mode. The use of immunosensors in these applications is most appropriate. Food chemists should take advantage of immunosensors in food and clinical diagnostics. There are many recent developments in the immunosensor field which have potential impacts. The future role of this technique in intra-laboratory, as well as bedside testing, will become even more important as the food laboratory is faced with increasing pressure to contain costs. Objective of this paper is to give a general overview of the possible application of immunosensors to the food analysis field.

  10. Magnetohydrodynamic-based Laboratories on a Chip for Analysis of Biomolecules Project

    Data.gov (United States)

    National Aeronautics and Space Administration — A laboratory-on-a-chip design based on magnetohydrodynamic (MHD) microfluidics and integrated microelectrochemical detection is proposed. The proposed device is...

  11. Reproducibility evaluation of standard procedures for the proximate analysis of coals. [Between and within laboratories

    Energy Technology Data Exchange (ETDEWEB)

    Butina, I.V.; Gorelov, P.N.

    1979-01-01

    Four coal samples were analyzed in the laboratories at eight coking plants, for metrological processing to determine the within- and between laboratory reproducibilities of the standard procedures for the basic coal property indices (ash, volatile matter and moisture content). The between-laboratory reproducibility is highest in the ash determination (S/sub b/ up to 0.17%) and the lowest in the volatile matter determination (S/sub b/ up to 0.9%). The within-laboratory reproducibility is up to 0.3% on ash and moisture content and up to 0.5% on volatile matter.

  12. Diffraction-based sensitivity analysis for an external occulter laboratory demonstration.

    Science.gov (United States)

    Sirbu, Dan; Kim, Yunjong; Jeremy Kasdin, N; Vanderbei, Robert J

    2016-08-01

    An external flower-shaped occulter flying in formation with a space telescope can theoretically provide sufficient starlight suppression to enable direct imaging of an Earth-like planet. Occulter shapes are scaled to enable experimental validation of their performance at laboratory dimensions. Previous experimental results have shown promising performance but have not realized the full theoretical potential of occulter designs. Here, we develop a two-dimensional diffraction model for optical propagations for occulters incorporating experimental errors. We perform a sensitivity analysis, and comparison with experimental results from a scaled-occulter testbed validates the optical model to the 10-10 contrast level. The manufacturing accuracy along the edge of the occulter shape is identified as the limiting factor to achieving the theoretical potential of the occulter design. This hypothesis is experimentally validated using a second occulter mask manufactured with increased edge feature accuracy and resulting in a measured contrast level approaching the 10-12 level-a better than one order of magnitude improvement in performance. PMID:27505392

  13. Laboratory methods applied for qualitative and quantitative analysis of seized nuclear materials and radioactive sources

    International Nuclear Information System (INIS)

    Full text: The smuggled nuclear or radioactive material can be spotted in the following ways: on-site investigation by the National Radiation Hygiene Preparedness Service following a warning signal of an installed monitor system at a border station; notification from bodies of the police or national security services. The monitoring process used for spotting of illicit trafficking of nuclear materials or lost radioactive sources can be divided into two main steps: on-site detection of the presence of nuclear or radioactive substances (hand-held or portable measuring device, installed monitors, etc.); identification of the type, activity, quantity of material (in-situ or laboratory analysis). According to the Hungarian regulations the first investigation of the seized or lost and found radioactive material shall be performed at the NRIRR, later on the material is transported to the Institute of Isotopes of the Hungarian Academy of Sciences for further analysis and storage. The main goal of the first investigation is the identification of the main nuclear and other characteristics of the seized radioactive substance to decide whether it is within the scope of the Act on the Atomic Energy. It means that the first investigation shall be reliable and fast, i.e. on routine basis there is no time for sophisticated radioanalytical methods as alpha-spectrometry. The main investigation method used for the identification of the seized radioactive material at our laboratory is gamma-spectrometry. Instead of the usual gamma-spectrometric measuring equipment for environmental or other small samples a totally shielded whole-body counter was applied to ensure a more flexible geometry or even an only possible measuring arrangement for sources of big sizes or very high activities. The main types of seized nuclear or radioactive substances investigated at our laboratory were non-irradiated uranium fuel element pellets with different enrichment of 235U and closed 226Ra radioactive

  14. Hydrogen Energy Storage (HES) and Power-to-Gas Economic Analysis; NREL (National Renewable Energy Laboratory)

    Energy Technology Data Exchange (ETDEWEB)

    Eichman, Joshua

    2015-07-30

    This presentation summarizes opportunities for hydrogen energy storage and power-to-gas and presents the results of a market analysis performed by the National Renewable Energy Laboratory to quantify the value of energy storage. Hydrogen energy storage and power-to-gas systems have the ability to integrate multiple energy sectors including electricity, transportation, and industrial. On account of the flexibility of hydrogen systems, there are a variety of potential system configurations. Each configuration will provide different value to the owner, customers and grid system operator. This presentation provides an economic comparison of hydrogen storage, power-to-gas and conventional storage systems. The total cost is compared to the revenue with participation in a variety of markets to assess the economic competitiveness. It is found that the sale of hydrogen for transportation or industrial use greatly increases competitiveness. Electrolyzers operating as demand response devices (i.e., selling hydrogen and grid services) are economically competitive, while hydrogen storage that inputs electricity and outputs only electricity have an unfavorable business case. Additionally, tighter integration with the grid provides greater revenue (e.g., energy, ancillary service and capacity markets are explored). Lastly, additional hours of storage capacity is not necessarily more competitive in current energy and ancillary service markets and electricity markets will require new mechanisms to appropriately compensate long duration storage devices.

  15. Detailed river stage mapping and head gradient analysis during meander cutoff in a laboratory river

    Science.gov (United States)

    Han, Bangshuai; Endreny, Theodore A.

    2014-02-01

    Analytical models of river evolution predict meander narrowing and elongation which creates sinuosity-driven hyporheic exchange across the meander neck, by decreasing flow distance and increasing head loss. We used a laboratory river table and close range photogrammetry to map and analyze sinuosity as a driver of head gradients and hyporheic exchange during cutoff. The river valley had relatively high slopes (1.8%) and moderately cohesive sediment (10% talc, 90% sand) to facilitate cutoff, and ratios of horizontal to vertical scaling were distorted to achieve dynamic similitude (Re = 3200). Incipient to cutoff, the head gradient across the neck increased due to a narrowing neck, upstream aggradation, and downstream degradation. Longitudinal and transverse river surface slopes around the meander bend increased as the meander approached cutoff. The steep head gradient across the moderately cohesive meander neck generated seepage erosion and scour that formed a low-sinuosity avulsion. Sediment-rich flow in the avulsed channel aggraded the downstream bed and separated the active channel and oxbow lake. The limitation in geometric and dynamic similitude in the river table limits extrapolation to natural rivers, yet river evolution may involve aggradation and degradation induced channel head loss and turnover hyporheic exchange as well as seepage-induced meander neck erosion. Our submillimeter maps of meander morphology and water stage provide data to parameterize river evolution and hyporheic exchange models, and may inform analysis and mapping of field sites.

  16. Analysis of 2015 Meteorological Data from the Knolls Atomic Power Laboratory and Kesselring Site Operations Facilities

    Energy Technology Data Exchange (ETDEWEB)

    Aluzzi, F. J. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2016-02-19

    Both the Knolls Atomic Power Laboratory (KAPL) in Schenectady, N.Y. and the Kesselring Site Operations (KSO) facility near Ballston Spa, N.Y. are required to estimate the effects of hypothetical emissions of radiological material from their respective facilities by the U.S. Environmental Protection Agency (EPA), which regulates both sites. An atmospheric dispersion model known as CAP88, which was developed and approved by the EPA for such purposes, is used by KAPL and KSO to meet this requirement. CAP88 calculations over a given time period are based on statistical data on the meteorological conditions for that period. Both KAPL and KSO have on-site meteorological towers which take atmospheric measurements at a frequency ideal for EPA regulatory model input. However, an independent analysis and processing of the meteorological data from each tower is required to derive a data set appropriate for use in the CAP88 model. The National Atmospheric Release Advisory Center (NARAC) was contracted to process the meteorological tower data for the 2015 calendar year from both on-site meteorological towers.

  17. Analysis of 2014 Meteorological Data from the Knolls Atomic Power Laboratory and Kesselring Site Operations Facilities

    Energy Technology Data Exchange (ETDEWEB)

    Aluzzi, Fernando J. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2015-02-25

    Both the Knolls Atomic Power Laboratory (KAPL) in Schenectady, N.Y. and the Kesselring Site Operations (KSO) facility near Ballston Spa, N.Y. are required to estimate the effects of hypothetical emissions of radiological material from their respective facilities by the U.S. Environmental Protection Agency (EPA), which regulates both sites. An atmospheric dispersion model known as CAP88, which was developed and approved by the EPA for such purposes, is used by KAPL and KSO to meet this requirement. CAP88 calculations over a given time period are based on statistical data on the meteorological conditions for that period. Both KAPL and KSO have on-site meteorological towers which take atmospheric measurements at a frequency ideal for EPA regulatory model input. However, an independent analysis and processing of the meteorological data from each tower is required to derive a data set appropriate for use in the CAP88 model. The National Atmospheric Release Advisory Center (NARAC) was contracted by KAPL to process the on-site data for the calendar year 2014.

  18. Permutation entropy and statistical complexity analysis of turbulence in laboratory plasmas and the solar wind.

    Science.gov (United States)

    Weck, P J; Schaffner, D A; Brown, M R; Wicks, R T

    2015-02-01

    The Bandt-Pompe permutation entropy and the Jensen-Shannon statistical complexity are used to analyze fluctuating time series of three different turbulent plasmas: the magnetohydrodynamic (MHD) turbulence in the plasma wind tunnel of the Swarthmore Spheromak Experiment (SSX), drift-wave turbulence of ion saturation current fluctuations in the edge of the Large Plasma Device (LAPD), and fully developed turbulent magnetic fluctuations of the solar wind taken from the Wind spacecraft. The entropy and complexity values are presented as coordinates on the CH plane for comparison among the different plasma environments and other fluctuation models. The solar wind is found to have the highest permutation entropy and lowest statistical complexity of the three data sets analyzed. Both laboratory data sets have larger values of statistical complexity, suggesting that these systems have fewer degrees of freedom in their fluctuations, with SSX magnetic fluctuations having slightly less complexity than the LAPD edge I(sat). The CH plane coordinates are compared to the shape and distribution of a spectral decomposition of the wave forms. These results suggest that fully developed turbulence (solar wind) occupies the lower-right region of the CH plane, and that other plasma systems considered to be turbulent have less permutation entropy and more statistical complexity. This paper presents use of this statistical analysis tool on solar wind plasma, as well as on an MHD turbulent experimental plasma.

  19. Eighth year projects and activities of the Environmental Remote Sensing Applications Laboratory (ERSAL). [Oregon

    Science.gov (United States)

    Lewis, A. J.; Isaacson, D. L.; Schrumpf, B. J. (Principal Investigator)

    1980-01-01

    Projects completed for the NASA Office of University Affairs include the application of remote sensing data in support of rehabilitation of wild fire damaged areas and the use of LANDSAT 3 return beam vidicon in forestry mapping applications. Continuing projects for that office include monitoring western Oregon timber clearcut; detecting and monitoring wheat disease; land use monitoring for tax assessment in Umatilla, Lake, and Morrow Counties; and the use of Oregon Air National Guard thermal infrared scanning data. Projects funded through other agencies include the remote sensing inventory of elk in the Blue Mountains; the estimation of burned agricultural acreage in the Willamette Valley; a resource inventory of Deschutes County; and hosting a LANDSAT digital workshop.

  20. Interstitial Radiofrequency Hyperthermia for Brain Tumors : Preliminary Laboratory Studies and Clinical Application

    OpenAIRE

    Koga, Hiroaki; Mori, Kazuo; Tokunaga, Yoshiharu

    1993-01-01

    An interstitial radiofrequency (RF) hyperthermia system for brain tumor was evaluated in cranial phantoms and cat brains. An intracranial RF applicator and thermocouple microprobes were emplaced in the brain and a headband-type flexible extracranial electrode fixed over the scalp. An 8MHz RF capacitive-type heating machine provided power. The temperature distribution was measured by thermography. In phantom and animal studies, the RF power had good penetration into the tissue and generated un...

  1. Synchrophasor Network, Laboratory and Software Applications Developed in the STRONg2rid Project

    OpenAIRE

    Almas, Muhammad Shoaib; Baudette, Maxime; Vanfretti, Luigi; Løvlund, S; Gjerde, J. O.

    2014-01-01

    This paper presents the activities carried out in one of the work packages of the Nordic Energy Research funded project Smart Transmission Grid Operation and Control (STRONg2rid). The main objective of the work package is to deploy a state-of-the-art software and hardware for developing power system operation, protection, control and automation applications. Several PMUs have been deployed at partner universities and a network of synchrophasors has been set up. In addition the Smart Transmiss...

  2. Greenhouse and laboratory study for the land application of water treatment residual

    OpenAIRE

    Lucas, Jay B.

    1991-01-01

    The disposal of water treatment residual has received little attention due to a lack of regulation, funding, and concern about their environmental impacts. Many treatment plants discharge alum residual directly into nearby water courses or dewater them for landfilling. If suitable land is available, land application of residual is cost effective and has the potential for negligible effects on the environment and may prove to be a long-term solution to the disposal problem. This...

  3. Optical holography applications for the zero-g Atmospheric Cloud Physics Laboratory

    Science.gov (United States)

    Kurtz, R. L.

    1974-01-01

    A complete description of holography is provided, both for the time-dependent case of moving scene holography and for the time-independent case of stationary holography. Further, a specific holographic arrangement for application to the detection of particle size distribution in an atmospheric simulation cloud chamber. In this chamber particle growth rate is investigated; therefore, the proposed holographic system must capture continuous particle motion in real time. Such a system is described.

  4. Application for call center data analysis

    OpenAIRE

    KLEMENČIČ, DAMJAN

    2015-01-01

    Graduation thesis describes the planning and design of desktop application CTI Server that is used in call and dispatch centers, where they have communication server (PBX) Siemens. Application collects data that is sent from communication server and stores them in data base for subsequent processing. It also displays current status of agents and telephony connections, call history and agent logs for a certain period of time. With the data obtained from communication server the application ...

  5. Derailer: interactive security analysis for web applications

    OpenAIRE

    Near, Joseph Paul; Jackson, Daniel

    2014-01-01

    Derailer is an interactive tool for finding security bugs in web applications. Using symbolic execution, it enumerates the ways in which application data might be exposed. The user is asked to examine these exposures and classify the conditions under which they occur as security-related or not; in so doing, the user effectively constructs a specification of the application's security policy. The tool then highlights exposures missing security checks, which tend to be security bugs. We have...

  6. Selected environmental applications of neutron activation analysis

    International Nuclear Information System (INIS)

    NAA is very useful for the determination of trace and minor elements in many environmental applications. While instrumental NAA (INAA) has a number of valid applications in this field, radiochemical NAA (RNAA) prior to, or post irradiation provides some significant advantages. One of the major focus points for environmental applications of NAA is to assess the magnitude of various pollutants. This paper discusses doing this via two methods, namely air monitoring and biological monitoring. (author)

  7. The Role of a Physical Analysis Laboratory in a 300 mm IC Development and Manufacturing Centre

    Science.gov (United States)

    Kwakman, L. F. Tz.; Bicais-Lepinay, N.; Courtas, S.; Delille, D.; Juhel, M.; Trouiller, C.; Wyon, C.; de la Bardonnie, M.; Lorut, F.; Ross, R.

    2005-09-01

    To remain competitive IC manufacturers have to accelerate the development of most advanced (CMOS) technology and to deliver high yielding products with best cycle times and at a competitive pricing. With the increase of technology complexity, also the need for physical characterization support increases, however many of the existing techniques are no longer adequate to effectively support the 65-45 nm technology node developments. New and improved techniques are definitely needed to better characterize the often marginal processes, but these should not significantly impact fabrication costs or cycle time. Hence, characterization and metrology challenges in state-of-the-art IC manufacturing are both of technical and economical nature. TEM microscopy is needed for high quality, high volume analytical support but several physical and practical hurdles have to be taken. The success rate of FIB-SEM based failure analysis drops as defects often are too small to be detected and fault isolation becomes more difficult in the nano-scale device structures. To remain effective and efficient, SEM and OBIRCH techniques have to be improved or complemented with other more effective methods. Chemical analysis of novel materials and critical interfaces requires improvements in the field of e.g. SIMS, ToF-SIMS. Techniques that previously were only used sporadically, like EBSD and XRD, have become a `must' to properly support backend process development. At the bright side, thanks to major technical advances, techniques that previously were practiced at laboratory level only now can be used effectively for at-line fab metrology: Voltage Contrast based defectivity control, XPS based gate dielectric metrology and XRD based control of copper metallization processes are practical examples. In this paper capabilities and shortcomings of several techniques and corresponding equipment are presented with practical illustrations of use in our Crolles facilities.

  8. LABORATORY TESTING RESULTS ANALYSIS OF GIARDIASIS PREVALENCE AMONG DIFFERENT POPULATION GROUPS IN THE NENETS AUTONOMOUS DISTRICT

    Directory of Open Access Journals (Sweden)

    N. S. Bobyreva

    2015-01-01

    Full Text Available The Nenets Autonomous District (NAD refers to the territories of the Russia’s Far North. The country is the only region of Russia, where there are still no roads. The extreme weather conditions, as well as residential patterns in the NAD reduce the availability of specialized medical care, as indigenous people and other nationalities living in the district, which requires the use of health care management specific forms. The article presents data on giardiasis studies amongst different categories of the NAD population, obtained as a result of the population surveys in remote regions of the Russian Federation Arctic zone. Samples studied were serum and faecal emulsion. The study used the following laboratory methods: for serum — Giardia lamblia antibody screening method using ELISA kit, emulsion stool — native smear microscopy analysis, the method of enrichment using disposable concentrators «Parasep» immunological diagnostic methods based on the detection of specific lamblia antigen in faeces using ELISA kits. For statistics was used descriptive statistics analysis (mean values, the percentage error of the mean, the construction of the trend line with program SPSS 20.00, Excel 2010, the method of analysis of official statistical reporting hospitals survey on giardiasis, data of Rospotrebnadzor (Russian Sanitary service for NAD and data from own research from 2002 to 2013. Just in the process of research carried out research on the 10 356 giardiasis, registered diseases by 3470 cases of giardiasis, accounting for 99.14% of the total number of protozoonosises registered and 37.4% of all registered in the NAD parasitosis. The comparison was made among the population of the county towns, home to both the indigenous people, nomadic, and representatives of other ethnic groups, sedentary with urban population of the city of Naryan-Mar. The article analyzes the incidence rates for giardiasis according to district official statistical reporting

  9. San Francisco District Laboratory (SAN)

    Data.gov (United States)

    Federal Laboratory Consortium — Program Capabilities Food Analysis SAN-DO Laboratory has an expert in elemental analysis who frequently performs field inspections of materials. A recently acquired...

  10. DNA Fingerprint Analysis of Three Short Tandem Repeat (STR) Loci for Biochemistry and Forensic Science Laboratory Courses

    Science.gov (United States)

    McNamara-Schroeder, Kathleen; Olonan, Cheryl; Chu, Simon; Montoya, Maria C.; Alviri, Mahta; Ginty, Shannon; Love, John J.

    2006-01-01

    We have devised and implemented a DNA fingerprinting module for an upper division undergraduate laboratory based on the amplification and analysis of three of the 13 short tandem repeat loci that are required by the Federal Bureau of Investigation Combined DNA Index System (FBI CODIS) data base. Students first collect human epithelial (cheek)…

  11. SIPCAn (Separation, Isolation, Purification, Characterization, and Analysis): A One-Term, Integrated Project for the Undergraduate Organic Laboratory

    Science.gov (United States)

    Dintzner, Matthew R.; Kinzie, Charles R.; Pulkrabek, Kimberly A.; Arena, Anthony F.

    2011-01-01

    SIPCAn, an acronym for separation, isolation, purification, characterization, and analysis, is presented as a one-term, integrated project for the first-term undergraduate organic laboratory course. Students are assigned two mixtures of unknown organic compounds--a mixture of two liquid compounds and a mixture of two solid compounds--at the…

  12. NMR and IR Spectroscopy for the Structural Characterization of Edible Fats and Oils: An Instrumental Analysis Laboratory

    Science.gov (United States)

    Crowther, Molly W.

    2008-01-01

    This article describes an upper-level instrumental laboratory for undergraduates that explores the complementary nature of IR and NMR spectroscopy for analysis of several edible fats and oils that are structurally similar but differ in physical properties and health implications. Five different fats and oils are analyzed for average chain length,…

  13. A Wildfire Behavior Modeling System at Los Alamos National Laboratory for Operational Applications

    Energy Technology Data Exchange (ETDEWEB)

    S.W. Koch; R.G.Balice

    2004-11-01

    To support efforts to protect facilities and property at Los Alamos National Laboratory from damages caused by wildfire, we completed a multiyear project to develop a system for modeling the behavior of wildfires in the Los Alamos region. This was accomplished by parameterizing the FARSITE wildfire behavior model with locally gathered data representing topography, fuels, and weather conditions from throughout the Los Alamos region. Detailed parameterization was made possible by an extensive monitoring network of permanent plots, weather towers, and other data collection facilities. We also incorporated a database of lightning strikes that can be used individually as repeatable ignition points or can be used as a group in Monte Carlo simulation exercises and in other randomization procedures. The assembled modeling system was subjected to sensitivity analyses and was validated against documented fires, including the Cerro Grande Fire. The resulting modeling system is a valuable tool for research and management. It also complements knowledge based on professional expertise and information gathered from other modeling technologies. However, the modeling system requires frequent updates of the input data layers to produce currently valid results, to adapt to changes in environmental conditions within the Los Alamos region, and to allow for the quick production of model outputs during emergency operations.

  14. Laboratory simulated slipstream testing of novel sulfur removal processes for gasification application

    International Nuclear Information System (INIS)

    The Wabash River Integrated Methanol and Power Production from Clean Coal Technologies (IMPPCCT) project is investigating an Early Entrance Coproduction Plant (EECP) concept to evaluate integrated electrical power generation and methanol production from coal and other carbonaceous feedstocks. Research, development and testing (RD and T) that is currently being conducted under the project is evaluating cost effective process systems for removing contaminants, particularly sulfur species, from the generated gas which contains mainly synthesis gas (syngas), CO2 and steam at concentrations acceptable for the methanol synthesis catalyst. The RD and T includes laboratory testing followed by bench-scale and field testing at the SG Solutions Gasification Plant located in West Terre Haute, Indiana. Actual synthesis gas produced by the plant was utilized at system pressure and temperature for bench-scale field testing. ConocoPhillips Company (COP) developed a sulfur removal technology based on a novel, regenerable sorbent - S Zorb trademark - to remove sulfur contaminants from gasoline at high temperatures. The sorbent was evaluated for its sulfur removal performance from the generated syngas especially in the presence of other components such as water and CO2 which often cause sorbent performance to decline over time. This publication also evaluates the performance of a regenerable activated carbon system developed by Nucon International, Inc. in polishing industrial gas stream by removing sulfur species to parts-per-billion (ppb) levels. (author)

  15. Good Manufacturing Practices (GMP) / Good Laboratory Practices (GLP) Review and Applicability for Chemical Security Enhancements

    Energy Technology Data Exchange (ETDEWEB)

    Iveson, Steven W. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). International Chemical Security Threat Reduction

    2014-11-01

    Global chemical security has been enhanced through the determined use and integration of both voluntary and legislated standards. Many popular standards contain components that specifically detail requirements for the security of materials, facilities and other vital assets. In this document we examine the roll of quality management standards and how they affect the security culture within the institutions that adopt these standards in order to conduct business within the international market place. Good manufacturing practices and good laboratory practices are two of a number of quality management systems that have been adopted as law in many nations. These standards are designed to protect the quality of drugs, medicines, foods and analytical test results in order to provide the world-wide consumer with safe and affective products for consumption. These standards provide no established security protocols and yet manage to increase the security of chemicals, materials, facilities and the supply chain via the effective and complete control over the manufacturing, the global supply chains and testing processes. We discuss the means through which these systems enhance security and how nations can further improve these systems with additional regulations that deal specifically with security in the realm of these management systems. We conclude with a discussion of new technologies that may cause disruption within the industries covered by these standards and how these issues might be addressed in order to maintain or increase the level of security within the industries and nations that have adopted these standards.

  16. Laboratory-scale investigation of UV treatment of ammonia for livestock and poultry barn exhaust applications.

    Science.gov (United States)

    Rockafellow, Erin M; Koziel, Jacek A; Jenks, William S

    2012-01-01

    The feasibility of using deep ultraviolet (UV) treatment for abatement of ammonia (NH(3)) in livestock and poultry barn exhaust air was examined in a series of laboratory-scale experiments. These experiments simulated moving exhaust air through an irradiation chamber with variables of UV wavelength and dose, NH(3) concentrations, humidity, and presence of hydrogen sulfide (H(2)S). Ammonia, initially at relevant barn exhaust concentrations in air, was substantially or completely reduced by irradiation with 185 nm light. Reactions were monitored using chemiluminescence detection, gas chromatography with mass spectrometry detection, and Fourier transform infrared spectrometry, of which the latter was found to be the most informative and flexible. Detected nitrogen-containing products included N(2)O, NH(4)NO(3), and HNO(3). It was presumed that atomic oxygen is the primary photochemical product that begins the oxidative cascade. The data show that removal of NH(3) is plausible, but they highlight concerns over pollution swapping due to formation of ozone and N(2)O.

  17. Study and Application of Agricultural Laboratory Information Management System%农业实验室信息管理系统的研究及应用

    Institute of Scientific and Technical Information of China (English)

    黄家怿; 谢秋波; 郭佩佩

    2014-01-01

    本文讨论了农业实验室管理信息系统的建设与应用,主要对该系统技术架构的设计以及功能模块的建立进行了详细阐述,其中功能模块包括样品受理、检验分析、质量监控、资源管理以及系统管理五大块。最后以农业机械管理和畜产品实验室为例,说明了该系统的实用性。%This article discussed the construction and application of agricultural laboratory management informa-tion system (LIMS). Focus of the study was to design the system architecture and build its functional modules, which included five parts, namely, sample acceptance, examination and analysis, quality control, resource man-agement, and system management. Finally, the usefulness of the agricultural LIMS was described by the man-agement of agricultural machinery and testing laboratory of animal husbandry products.

  18. Isolation and Genetic Analysis of an Environmental Bacteriophage: A 10-Session Laboratory Series in Molecular Virology

    Science.gov (United States)

    Williamson, Ryan P.; Barker, Brent T.; Drammeh, Hamidou; Scott, Jefferson; Lin, Joseph

    2014-01-01

    Bacterial viruses, otherwise known as bacteriophage (or phage), are some of the most abundant viruses found in the environment. They can be easily isolated from water or soil and are ideal for use in laboratory classrooms due to their ease of culture and inherent safety. Here, we describe a series of 10 laboratory exercises where students collect,…

  19. Capillary Electrophoresis Analysis of Cations in Water Samples: An Experiment for the Introductory Laboratory

    Science.gov (United States)

    Pursell, Christopher J.; Chandler, Bert; Bushey, Michelle M.

    2004-01-01

    Capillary electrophoresis is gradually working its way into the undergraduate laboratory curriculum. Typically, experiments utilizing this newer technology have been introduced into analytical or instrumental courses. The authors of this article have introduced an experiment into the introductory laboratory that utilizes capillary electrophoresis…

  20. Facebook Applications' Installation and Removal: A Temporal Analysis

    OpenAIRE

    Kagan, Dima; Fire, Michael; Elyashar, Aviad; Elovici, Yuval

    2013-01-01

    Facebook applications are one of the reasons for Facebook attractiveness. Unfortunately, numerous users are not aware of the fact that many malicious Facebook applications exist. To educate users, to raise users' awareness and to improve Facebook users' security and privacy, we developed a Firefox add-on that alerts users to the number of installed applications on their Facebook profiles. In this study, we present the temporal analysis of the Facebook applications' installation and removal da...

  1. Metrology with Atom Interferometry: Inertial Sensors from Laboratory to Field Applications

    CERN Document Server

    Fang, Bess; Gillot, Pierre; Savoie, Denis; Lautier, Jean; Cheng, Bing; Alzar, Carlos L Garrido; Geiger, Remi; Merlet, Sebastien; Santos, Franck Pereira Dos; Landragin, Arnaud

    2016-01-01

    Developments in atom interferometry have led to atomic inertial sensors with extremely high sensitivity. Their performances are for the moment limited by the ground vibrations, the impact of which is exacerbated by the sequential operation, resulting in aliasing and dead time. We discuss several experiments performed at LNE-SYRTE in order to reduce these problems and achieve the intrinsic limit of atomic inertial sensors. These techniques have resulted in transportable and high-performance instruments that participate in gravity measurements, and pave the way to applications in inertial navigation.

  2. Metrology with Atom Interferometry: Inertial Sensors from Laboratory to Field Applications

    Science.gov (United States)

    Fang, B.; Dutta, I.; Gillot, P.; Savoie, D.; Lautier, J.; Cheng, B.; Garrido Alzar, C. L.; Geiger, R.; Merlet, S.; Pereira Dos Santos, F.; Landragin, A.

    2016-06-01

    Developments in atom interferometry have led to atomic inertial sensors with extremely high sensitivity. Their performances are for the moment limited by the ground vibrations, the impact of which is exacerbated by the sequential operation, resulting in aliasing and dead time. We discuss several experiments performed at LNE-SYRTE in order to reduce these problems and achieve the intrinsic limit of atomic inertial sensors. These techniques have resulted in transportable and high-performance instruments that participate in gravity measurements, and pave the way to applications in inertial navigation.

  3. Collisional effects on molecular spectra laboratory experiments and models, consequences for applications

    CERN Document Server

    Hartmann, Jean-Michel; Robert, Daniel

    2008-01-01

    Gas phase molecular spectroscopy is a powerful tool for obtaining information on the geometry and internal structure of isolated molecules as well as on the interactions that they undergo. It enables the study of fundamental parameters and processes and is also used for the sounding of gas media through optical techniques. It has been facing always renewed challenges, due to the considerable improvement of experimental techniques and the increasing demand for accuracy and scope of remote sensing applications. In practice, the radiating molecule is usually not isolated but diluted in a mixture

  4. Applications of Digital Image Analysis in Experimental Mechanics

    OpenAIRE

    Lyngbye, J. : Ph.D.

    1992-01-01

    The present thesis "Application of Digital Image Analysis in Experimental Mechanics" has been prepared as a part of Janus Lyngbyes Ph.D. study during the period December 1988 to June 1992 at the Department of Building technology and Structural Engineering, University of Aalborg, Denmark. In this thesis attention will be focused on optimal use and analysis of the information of digital images. This is realized during investigation and application of parametric methods in digital image analysis...

  5. Application of Data Mining methods in analysis of company's activity

    OpenAIRE

    Tyurina Dina N.

    2013-01-01

    The article considers expediency of application of Data Mining means along with traditional statistical methods of analysis of financial and economic activity of a company for revealing all possible factors that influence upon effectiveness of its functioning by means of solving clusterisation tasks. It shows main advantages of application of Data Mining means in analysis of company's activity. It offers an algorithm of conduction analysis of company's activity, which facilitates significant ...

  6. Methane dependent denitrification- from ecosystem to laboratory-scale enrichment for engineering applications.

    Science.gov (United States)

    Bhattacharjee, Ananda Shankar; Motlagh, Amir Mohaghegh; Jetten, Mike S M; Goel, Ramesh

    2016-08-01

    Managing nitrogen and carbon cycles in engineered and natural ecosystems is an environmental challenge. In this manuscript, we report a process which connects these two cycles with immense ecological and engineering significance. Sediments, collected from Jordan River in Salt Lake City, Utah were used as seed to start a laboratory-scale denitrification coupled to anaerobic methane oxidation (n-DAMO) reactor fed with methane (CH4) and nitrite (NO2(-)). Methane (CH4)-dependent denitrification in sediments of a nutrient-impaired river was found to be in the range of 40 nmol kg(-1) d(-1) to 70 nmol kg(-1) d(-1). Post 19 months of operation of the lab scale reactor, the n-DAMO reactor achieved nitrite removal rate of 2.88 mmol L(-1) d(-1). Enrichment of n-DAMO prokaryotes was evident from the increase in 16S rRNA gene copy number of bacteria belonging to the NC10 phylum in the reactor, corroborating with increase in the oxidation rates of CH4 coupled with NO2(-)-N removal from 21 μM to 190 μM of CH4 d(-1). Based on stable isotope experiments by other researchers, nitric oxide dismutase (nod) functional gene was hypothesized to be responsible for splitting nitric oxide to nitrogen and oxygen and this internally generated oxygen is utilized by n-DAMO prokaryotes to oxidize methane gas. Primers targeting the unique nitric oxide dismutase (nod) gene were developed and tested on the enrichment culture for the first time. This revealed that n-DAMO organisms are closely related yet distinct from, the M. oxyfera which had been enriched in earlier studies. The results emphasize tremendous future promise to use these novel organisms for wastewater treatment purposes, especially to take advantage of the dissolved methane present in anaerobic digester effluents. PMID:27176548

  7. Numerical Simulations of Landslides Calibrated Against Laboratory Experiments for Application to Asteroid Surface Processes

    Science.gov (United States)

    Richardson, Derek C.; Blum, J.; Weinhart, T.; Schwartz, S. R.; Michel, P.; Walsh, K. J.

    2012-10-01

    Spacecraft images of asteroids show evidence of low-gravity granular flows. Interpretation of these flows requires numerical modeling, which in turn requires code validation at laboratory scales. We have implemented a soft-sphere discrete element method (SSDEM) for modeling granular flows in our numerical code (Schwartz et al. 2012, Granular Matter 14, 363). Here we present results from a study to calibrate our code against controlled landslide experiments in order to determine the SSDEM parameters that best match real materials, to see how changes in those parameters affect the flow, and to mimic effects such as those due to irregular particle shapes. The apparatus, designed at University of Braunschweig, is a 0.6 × 0.8 m enclosed bed with a surface comprised of 10 mm diameter glass spheres glued into precisely drilled holes in a metal plate. The exact positions and depths of each of these glued spheres are input to the simulations. The experiments consist of filling the apparatus with loose glass beads (also 10 mm diameter) up to a set depth then gradually tilting the bed to note the angle of landslide initiation and the characteristics of the resulting flow. We reproduce this procedure in simulations, which we find are quite sensitive to the adopted SSDEM parameters, e.g., rolling friction and tangential damping delay landslide onset, while higher particle elasticity gives rise to faster, shorter-duration landslides. Preliminary results show a best match to the experiments (landslide initiation around 25 degrees) when adopting low static friction and no rolling friction in the simulations, but more experiments are in process. In future work, we will perform simulations in low-gravity environments representative of asteroid surfaces. This work is supported in part by grant NNX08AM39G from the NASA Office of Space Science. This study resulted from International Team collaboration #202 sponsored by ISSI in Switzerland.

  8. The application of the acoustic emission technique to stone decay by sodium sulphate in laboratory tests

    Directory of Open Access Journals (Sweden)

    Grossi, C. M.

    1997-03-01

    Full Text Available Acoustic emission was monitored during salt crystallisation cycles in order to study the mechanisms of rock deterioration by sodium sulphate in laboratory tests. Some porous carbonate stones used in Spanish monuments (Cathedral of Oviedo, Murcia and Seo Vella of Lérida were selected for this study. The acoustic emission detected during the different stages of the cycles (immersion, drying and cooling was interpreted to be the result of the salt behaviour inside the stone. The use of this technique has confirmed that this behaviour depends on salt characteristics (solubility, hydration state and polymorphism of anhydrous sodium sulphate and stone porosity and pore network.

    Para determinar los mecanismos de deterioro de las rocas debidos a la acción del sulfato de sodio, se ha registrado la emisión acústica durante ensayos de cristalización de sales en el laboratorio. Para ello, se han seleccionado tres piedras porosas carbonatadas utilizadas como materiales de construcción en monumentos españoles (Catedrales de Oviedo, Murcia y Seo Vella de Lérida. La emisión acústica detectada durante las diferentes etapas de los ciclos (inmersión, secado y enfriamiento se ha interpretado como debida al comportamiento de la sal en el interior de la piedra. Mediante esta técnica se ha confirmado que este comportamiento depende de las características de la sal (solubilidad, diferentes estados de hidratación y el polimorfismo del sulfato de sodio anhidro y de la porosidad y configuración del sistema poroso de las rocas.

  9. Laboratory of Biological Modeling

    Data.gov (United States)

    Federal Laboratory Consortium — The Laboratory of Biological Modeling is defined by both its methodologies and its areas of application. We use mathematical modeling in many forms and apply it to...

  10. Applications of social media and social network analysis

    CERN Document Server

    Kazienko, Przemyslaw

    2015-01-01

    This collection of contributed chapters demonstrates a wide range of applications within two overlapping research domains: social media analysis and social network analysis. Various methodologies were utilized in the twelve individual chapters including static, dynamic and real-time approaches to graph, textual and multimedia data analysis. The topics apply to reputation computation, emotion detection, topic evolution, rumor propagation, evaluation of textual opinions, friend ranking, analysis of public transportation networks, diffusion in dynamic networks, analysis of contributors to commun

  11. In situ vitrification application to buried waste: Final report of intermediate field tests at Idaho National Engineering Laboratory

    International Nuclear Information System (INIS)

    This report describes two in situ vitrification field tests conducted on simulated buried waste pits during June and July 1990 at the Idaho National Engineering Laboratory. In situ vitrification, an emerging technology for in place conversion of contaminated soils into a durable glass and crystalline waste form, is being investigated as a potential remediation technology for buried waste. The overall objective of the two tests was to access the general suitability of the process to remediate waste structures representative of buried waste found at Idaho National Engineering Laboratory. In particular, these tests, as part of a treatability study, were designed to provide essential information on the field performance of the process under conditions of significant combustible and metal wastes and to test a newly developed electrode feed technology. The tests were successfully completed, and the electrode feed technology successfully processed the high metal content waste. Test results indicate the process is a feasible technology for application to buried waste. 33 refs., 109 figs., 39 tabs

  12. Radio-analysis. Applications: biological dosimetry; Radioanalyse. Applications: dosage biologique

    Energy Technology Data Exchange (ETDEWEB)

    Bourrel, F. [CEA Saclay, INSTN, Institut National des Sciences et Techniques Nucleaires, 91 - Gif-sur-Yvette (France); Courriere, Ph. [UFR de Pharmacie, 31 - Toulouse (France)

    2003-06-01

    Radioisotopes have revolutionized the medical biology. Radio-immunology remains the reference measurement of the infinitely small in biology. Constant efforts have been performed to improve the simpleness, detectability and fastness of the method thanks to an increasing automation. This paper presents: 1 - the advantages of compounds labelling and the isotopic dilution; 2 - the antigen-antibody system: properties, determination of the affinity constant using the Scatchard method; 3 - radio-immunologic dosimetry: competitive dosimetry (radioimmunoassay), calibration curve and mathematical data processing, application to the free thyroxine dosimetry, immunoradiometric dosimetry (immunoradiometric assay), evaluation of the analytical efficiency of a radioimmunoassay; 4 - detection of the radioactive signal (solid and liquid scintillation). (J.S.)

  13. Determination of natural versus laboratory human infection with Mayaro virus by molecular analysis.

    Science.gov (United States)

    Junt, T; Heraud, J M; Lelarge, J; Labeau, B; Talarmin, A

    1999-12-01

    A laboratory worker developed clinical signs of infection with Mayaro virus (Togaviridae), an arbovirus of South and Central America, 6 days after preparation of Mayaro viral antigen and 10 days after a trip to a rain forest. There was no evidence of skin lesions during the antigen preparation, and level 3 containment safety measures were followed. Therefore, molecular characterization of the virus was undertaken to identify the source of infection. RT-PCR and DNA sequence comparisons proved the infection was with the laboratory strain. Airborne Mayaro virus contamination is thus a hazard to laboratory personnel.

  14. Rash after measles vaccination: laboratory analysis of cases reported in São Paulo, Brazil

    Directory of Open Access Journals (Sweden)

    Maria I Oliveira

    2002-04-01

    Full Text Available OBJECTIVE: The clinical differential diagnosis of rash due to viral infections is often difficult, and misdiagnosis is not rare, especially after the introduction of measles and rubella vaccination. A study to determine the etiological diagnosis of exanthema was carried out in a group of children after measles vaccination. METHODS: Sera collected from children with rash who received measles vaccine were reported in 1999. They were analyzed for IgM antibodies against measles virus, rubella virus, human parvovirus B19 (HPV B19 using ELISA commercial techniques, and human herpes virus 6 (HHV 6 using immunofluorescence commercial technique. Viremia for each of those viruses was tested using a polimerase chain reaction (PCR. RESULTS: A total of 17 cases of children with exanthema after measles immunization were reported in 1999. The children, aged 9 to 12 months (median 10 months, had a blood sample taken for laboratory analysis. The time between vaccination and the first rash signs varied from 1 to 60 days. The serological results of those 17 children suspected of measles or rubella infection showed the following etiological diagnosis: 17.6% (3 in 17 HPV B19 infection; 76.5% (13 in 17 HHV 6 infection; 5.9% (1 in 17 rash due to measles vaccine. CONCLUSIONS: The study data indicate that infection due to HPV B19 or HHV 6 can be misdiagnosed as exanthema due to measles vaccination. Therefore, it is important to better characterize the etiology of rash in order to avoid attributing it incorrectly to measles vaccine.

  15. SINGULAR SPECTRUM ANALYSIS: METHODOLOGY AND APPLICATION TO ECONOMICS DATA

    Institute of Scientific and Technical Information of China (English)

    Hossein HASSANI; Anatoly ZHIGLJAVSKY

    2009-01-01

    This paper describes the methodology of singular spectrum analysis (SSA) and demonstrate that it is a powerful method of time series analysis and forecasting, particulary for economic time series. The authors consider the application of SSA to the analysis and forecasting of the Iranian national accounts data as provided by the Central Bank of the Islamic Republic of lran.

  16. Mobile applications as Snore Detector : testing evaluation and analysis

    OpenAIRE

    Kamorudeen, Afeez

    2013-01-01

    Recent studies have shown the dramatic effects of snoring on people’s lives. Detection and diagnosis of snoring and other sleep disorder used to depend solely on polysomnography recording which often requires that the patient remain in the hospital or laboratory as the case maybe for several days which is uncomfortable and time-consuming. Recently Smartphone application software available on the Apple store, Google Play and Windows Phone Store render great benefits for both specialist and...

  17. Laboratory testing and analysis Dorris Dam Modoc National Wildlife Refuge May 24 1991

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report presents the results of laboratory testing and stability analyses conducted for Dorris Dam located within the Modoc National Wildlife Refuge, Modoc...

  18. On the use of brain-computer interfaces outside scientific laboratories toward an application in domotic environments.

    Science.gov (United States)

    Babiloni, F; Cincotti, F; Marciani, M; Salinari, S; Astolfi, L; Aloise, F; De Vico Fallani, F; Mattia, D

    2009-01-01

    Brain-computer interface (BCI) applications were initially designed to provide final users with special capabilities, like writing letters on a screen, to communicate with others without muscular effort. In these last few years, the BCI scientific community has been interested in bringing BCI applications outside the scientific laboratories, initially to provide useful applications in everyday life and in future in more complex environments, such as space. Recently, we implemented a control of a domestic environment realized with BCI applications. In the present chapter, we analyze the methodological approach employed to allow the interaction between subjects and domestic devices by use of noninvasive EEG recordings. In particular, we analyze whether the cortical activity estimated from noninvasive EEG recordings could be useful in detecting mental states related to imagined limb movements. We estimate cortical activity from high-resolution EEG recordings in a group of healthy subjects by using realistic head models. Such cortical activity was estimated in a region of interest associated with the subjects' Brodmann areas by use of depth-weighted minimum norm solutions. Results show that the use of the estimated cortical activity instead of unprocessed EEG improves the recognition of the mental states associated with limb-movement imagination in a group of healthy subjects. The BCI methodology here presented has been used in a group of disabled patients to give them suitable control of several electronic devices disposed in a three-room environment devoted to neurorehabilitation. Four of six patients were able to control several electronic devices in the domotic context with the BCI system, with a percentage of correct responses averaging over 63%.

  19. Self-Reported Emergency Medicine Residency Applicant Attitudes Towards a Procedural Cadaver Laboratory Curriculum

    Directory of Open Access Journals (Sweden)

    Hoffman, Lance

    2008-08-01

    Full Text Available OBJECTIVE: Residency applicants consider a variety of factors when ranking emergency medicine (EM programs for their NRMP match list. A human cadaver emergency procedure lab curriculum is uncommon. We hypothesized that the presence this curriculum would positively impact the ranking of an EM residency program.METHODS: The EM residency at Nebraska Medical Center is an urban, university-based program with a PGY I-III format. Residency applicants during the interview for a position in the PGY I class of 2006 were surveyed by three weekly electronic mailings. The survey was distributed in March 2006 after the final NRMP match results were released. The survey explored learner preferences and methodological commonality of models of emergency procedural training, as well as the impact of a procedural cadaver lab curriculum on residency ranking. ANOVA of ranks was used to compare responses to ranking questions.RESULTS: Of the 73 potential subjects, 54 (74% completed the survey. Respondents ranked methods of procedural instruction from 1 (most preferred or most common technique to 4 (least preferred or least common technique. Response averages and 95% confidence intervals for the preferred means of learning a new procedure are as follows: textbook (3.69; 3.51-3.87, mannequin (2.83; 2.64-3.02, human cadaver (1.93; 1.72-2.14, and living patient (1.56; 1.33-1.79. Response averages for the commonality of means used to teach a new procedure are as follows: human cadaver (3.63; 3.46-3.80, mannequin (2.70; 2.50-2.90, living patient (2.09; 1.85-2.33, and textbook (1.57; 1.32-1.82. When asked if the University of Nebraska Medical Center residency ranked higher in the individual's match list because of its procedural cadaver lab, 14.8% strongly disagreed, 14.8% disagreed, 40.7% were neutral, 14.8% agreed, and 14.8% strongly agreed.CONCLUSION: We conclude that, although cadaveric procedural training is viewed by senior medical student learners as a desirable means

  20. Computational intelligence for big data analysis frontier advances and applications

    CERN Document Server

    Dehuri, Satchidananda; Sanyal, Sugata

    2015-01-01

    The work presented in this book is a combination of theoretical advancements of big data analysis, cloud computing, and their potential applications in scientific computing. The theoretical advancements are supported with illustrative examples and its applications in handling real life problems. The applications are mostly undertaken from real life situations. The book discusses major issues pertaining to big data analysis using computational intelligence techniques and some issues of cloud computing. An elaborate bibliography is provided at the end of each chapter. The material in this book includes concepts, figures, graphs, and tables to guide researchers in the area of big data analysis and cloud computing.