WorldWideScience

Sample records for technological activity part

  1. Teaching for Engagement: Part 2: Technology in the Service of Active Learning

    Science.gov (United States)

    Hunter, William J.

    2015-01-01

    In the first piece in this series ("Teaching for Engagement: Part 1: Constructivist Principles, Case-Based Teaching, and Active Learning"), William Hunter sought to make the case that a wide range of teaching methods (e.g., case-based teaching, problem-based learning, anchored instruction) that share an intellectual grounding in…

  2. Active ageing technologies

    DEFF Research Database (Denmark)

    Lassen, Aske Juul

    the elderly. As part of this rearticulation of old age, many new technologies take form. This paper uses a wide concept of technologies (devices, regimes, strategies and ways of doing) and argues that technologies form active aging subjectivities, and on the other hand, that these subjectivities...... ‘sites of active aging’ in Denmark. By presenting three technologies of active aging (billiards at an activity center for elderly persons, dancing tiles for rehabilitation after falls and an online fitness community for elderly persons) the paper suggests that active aging is more than regimes...

  3. Thermally activated technologies: Technology Roadmap

    Energy Technology Data Exchange (ETDEWEB)

    None, None

    2003-05-01

    The purpose of this Technology Roadmap is to outline a set of actions for government and industry to develop thermally activated technologies for converting America’s wasted heat resources into a reservoir of pollution-free energy for electric power, heating, cooling, refrigeration, and humidity control. Fuel flexibility is important. The actions also cover thermally activated technologies that use fossil fuels, biomass, and ultimately hydrogen, along with waste heat.

  4. Thermally activated technologies: Technology Roadmap

    Energy Technology Data Exchange (ETDEWEB)

    None, None

    2003-05-01

    The purpose of this Technology Roadmap is to outline a set of actions for government and industry to develop thermally activated technologies for converting America’s wasted heat resources into a reservoir of pollution-free energy for electric power, heating, cooling, refrigeration, and humidity control. Fuel flexibility is important. The actions also cover thermally activated technologies that use fossil fuels, biomass, and ultimately hydrogen, along with waste heat.

  5. Future Jet Technologies, Part C

    Science.gov (United States)

    Gal-Or, Benjamin

    2013-06-01

    This updated, PART C REVIEW, covers the dangerous global spread of JS-stealth, drone technology [1-91], canard-free, stealth, new agile drones and the highly debated, 480 billion F-35 International Program as reported on March 13, 2013 to the U.S. Congress [92]. Due to serious design issues, spiraling high costs and years in delays, alternatives are analyzed here, depicted and proposed, mainly from the propulsion-design point of view. These include fleets of low-cost, stealth, jet-steered-drones mixed with non-stealthy, low-cost, ready-to-be-delivered, U.S. or European or Russian fighter aircraft. Can a few F-35s win against large fleets of stealth agile drones? To understand the dangers and critical issues involved, the author's own, past classified information is partly disclosed, while resorting to images in Figs. 2(a) and 2(b) taken from his book [2] and from Wikipedia, the "Free Encyclopedia", in all other images.

  6. Commercial Parts Technology Qualification Processes

    Science.gov (United States)

    Cooper, Mark S.

    2013-01-01

    Many high-reliability systems, including space systems, use selected commercial parts (including Plastic Encapsulated Microelectronics or PEMs) for unique functionality, small size, low weight, high mechanical shock resistance, and other factors. Predominantly this usage is subjected to certain 100% tests (typically called screens) and certain destructive tests usually (but not always) performed on the flight lot (typically called qualification tests). Frequently used approaches include those documented in EEE-INST-002 and JPL DocID62212 (which are sometimes modified by the particular aerospace space systems manufacturer). In this study, approaches from these documents and several space systems manufacturers are compared to approaches from a launch systems manufacturer (SpaceX), an implantable medical electronics manufacturer (Medtronics), and a high-reliability transport system process (automotive systems). In the conclusions section, these processes are outlined for all of these cases and presented in tabular form. Then some simple comparisons are made. In this introduction section, the PEM technology qualification process is described, as documented in EEE-INST-002 (written by the Goddard Space Flight Center, GSFC), as well as the somewhat modified approach employed at the Jet Propulsion Laboratory (JPL). Approaches used at several major NASA contractors are also described

  7. Technology design of composite parts

    OpenAIRE

    K. Karjust; R. Küttner; M. Pohlak

    2007-01-01

    Purpose: Purpose of this paper is to optimize the design of the manufacturing technology process of large composite plastic products. One of the key problems is how to integrate computer-based product design and planning of the technology process.Design/methodology/approach: In the current study the Neural Network meta-modelling technique has been used. The optimization of the plastic sheet and its strengthening layer thickness has been performed using the surrogate design model. For modeling...

  8. Technology design of composite parts

    Directory of Open Access Journals (Sweden)

    K. Karjust

    2007-06-01

    Full Text Available Purpose: Purpose of this paper is to optimize the design of the manufacturing technology process of large composite plastic products. One of the key problems is how to integrate computer-based product design and planning of the technology process.Design/methodology/approach: In the current study the Neural Network meta-modelling technique has been used. The optimization of the plastic sheet and its strengthening layer thickness has been performed using the surrogate design model. For modeling and structural analysis of derivative products CAE (ANSYS and CAD (Unigraphics systems are used. The Finite Element Analysis simulation was performed with optimal thickness values to verify the prediction accuracy of a surrogate model.Findings: The optimization model is proposed to control and analyze the calculated technology planning route, the optimal vacuum forming processes, the technology of post-forming operations, strengthening and assembling operations. The design of the new products is tightly integrated with manufacturing aspects. The product family of the large composite plastic products together with the derivate products and their production technologies is designed using proposed methodology. The optimization of the plastic sheet and its strengthening layer thickness has been performed.Practical implications: The most of the methods described in this study are now under development and industrial testing. Development of manufacturing (operation plans for a product family is of great practical importance with many significant cost implications. In design of derivative products for the product family, the nonlinear optimization is used and the detailed description of the product is established. The proposed approach is exemplified by the development of a family of products in Wellspa Inc.Originality/value: Value of this paper is that developed optimization model controls and analyzes the calculated technology planning route.

  9. Japanese activities in refrigeration technology

    Science.gov (United States)

    Fujita, T.; Ohtsuka, T.; Ishizaki, Y.

    This paper reviews recent activities in refrigeration technology in Japan. The projects described are stimulated by growing industrial needs or form part of large national projects. The JNR project on the MAGLEV train is currently the most powerful activity and it demands knowledge in all the different disciplines of cryogenics in particular on various scales of refrigeration. Research activities are also directed towards the development of Stirling cycle and magnetic refrigerators for applications in a wider area.

  10. Extravehicular activity technology discipline

    Science.gov (United States)

    Webbon, Bruce W.

    1990-01-01

    Viewgraphs on extravehicular activity technology discipline for Space Station Freedom are presented. Topics covered include: extravehicular mobility unit; airlock and EMU support equipment; tools, mobility aids, and workstations; and telerobotic work aids interfaces.

  11. Oak Ridge National Laboratory Technology Logic Diagram. Volume 2, Technology Logic Diagram: Part B, Remedial Action

    Energy Technology Data Exchange (ETDEWEB)

    1993-09-01

    The Oak Ridge National Laboratory Technology Logic Diagram (TLD) was developed to provide a decision support tool that relates environmental restoration (ER) and waste management (WM) problems at Oak Ridge National Laboratory (ORNL) to potential technologies that can remediate these problems. The TLD identifies the research, development, demonstration, testing, and evaluation needed to develop these technologies to a state that allows technology transfer and application to decontamination and decommissioning (D&D), remedial action (RA), and WM activities. The TLD consists of three fundamentally separate volumes: Vol. 1 (Technology Evaluation), Vol. 2 (Technology Logic Diagram), and Vol. 3 (Technology Evaluation Data Sheets). Part A of Vols. 1. and 2 focuses on D&D. Part B of Vols. 1 and 2 focuses on the RA of contaminated facilities. Part C of Vols. 1 and 2 focuses on WM. Each part of Vol. 1 contains an overview of the TLD, an explanation of the program-specific responsibilities, a review of identified technologies, and the rankings of remedial technologies. Volume 2 (Pts. A, B, and C) contains the logic linkages among EM goals, environmental problems, and the various technologies that have the potential to solve these problems. Volume 3 (Pts. A, B, and C) contains the TLD data sheets. Remedial action is the focus of Vol. 2, Pt. B, which has been divided into the three necessary subelements of the RA: characterization, RA, and robotics and automation. Each of these sections address general ORNL problems, which are then broken down by problem area/constituents and linked to potential remedial technologies. The diagrams also contain summary information about a technology`s status, its science and technology needs, and its implementation needs.

  12. Part I.2: Perspectives on Technological Transformation

    DEFF Research Database (Denmark)

    Müller, Jens

    2003-01-01

    The article defines the technology concept as knowledge, organisation, technique and product, and describes the processes for technology analysis.......The article defines the technology concept as knowledge, organisation, technique and product, and describes the processes for technology analysis....

  13. Gating Technology for Vertically Parted Green Sand Moulds

    DEFF Research Database (Denmark)

    Larsen, Per

    Gating technology for vertically parted green sand moulds. Literature study of different ways of designing gating systems.......Gating technology for vertically parted green sand moulds. Literature study of different ways of designing gating systems....

  14. Part I.5: Perspectives on Technological Transformation

    DEFF Research Database (Denmark)

    Müller, Jens

    2003-01-01

    The article describes the transfer processes between the different technology and social systems......The article describes the transfer processes between the different technology and social systems...

  15. Part I.6: Perspectives on Technological Transformation

    DEFF Research Database (Denmark)

    Müller, Jens

    2003-01-01

    The article outlines the technological transfer processes and sums that the national systems of innovation function under highly contrasting institutional and technological settings.......The article outlines the technological transfer processes and sums that the national systems of innovation function under highly contrasting institutional and technological settings....

  16. English for Science and Technology - Theoretical Part

    DEFF Research Database (Denmark)

    Mousten, Birthe

    The books covers the most basic, theoretical approaches to English for Science and Technology. The book is aimed at BA Students or as an introduction to English in the genres of science and technology writing.......The books covers the most basic, theoretical approaches to English for Science and Technology. The book is aimed at BA Students or as an introduction to English in the genres of science and technology writing....

  17. Managing Technology Resourcefully: Part I--Technology and Instruction

    Science.gov (United States)

    Weeks, Richard

    2009-01-01

    The transformative powers of digital technology to improve student learning and the resulting effect of that technology to make the business of education more cost-effective are two of the more exciting dynamics in schooling today. Before the current school year ends, new products and upgrades will be available to replace much of the technology.…

  18. Technology, Mathematics and Activity Theory

    Science.gov (United States)

    Lerman, Stephen

    2013-01-01

    This article describes 11 papers in which the authors report their research on technology as enhancement in the teaching and learning of mathematics, in the context of the application of activity theory for design and/or analysis. There is considerable diversity across the papers in how the authors have interpreted their task and in particular how…

  19. Recent Achievements in Simulated Moving Bed (SMB Technology. Part II

    Directory of Open Access Journals (Sweden)

    Roje, M.

    2010-09-01

    Full Text Available Progress in the method of simulated moving bed (SMB technology and some important achievements in separation of specific classes of racemic compounds of therapeutic interest are reported in the Part I of this review. Part II describes novel methods of SMB technology. Complex technologies,such as the combination of SMB and biocatalytic reactions, and SMB with crystallization process, are presented. VariCol variant of SMB, and its application in the separation of the racemic mixtures of commercial and academic interest are discussed. In the conclusive section, comments are given concerning the economic dimension and the market of enantiomerically pure compounds.

  20. Oak Ridge National Laboratory Technology Logic Diagram. Volume 3, Technology evaluation data sheets: Part B, Dismantlement, Remedial action

    Energy Technology Data Exchange (ETDEWEB)

    1993-09-01

    The Oak Ridge National Laboratory Technology Logic Diagram (TLD) was developed to provide a decision support tool that relates environmental restoration (ER) and waste management (WM) problems at Oak Ridge National Laboratory (ORNL) to potential technologies that can remediate these problems. The TLD identifies the research, development, demonstration testing, and evaluation needed to develop these technologies to a state that allows technology transfer and application to decontamination and decommissioning (D&D), remedial action (RA), and WM activities. The TLD consists of three fundamentally separate volumes: Vol. 1, Technology Evaluation; Vol. 2, Technology Logic Diagram and Vol. 3, Technology EvaLuation Data Sheets. Part A of Vols. 1 and 2 focuses on RA. Part B of Vols. 1 and 2 focuses on the D&D of contaminated facilities. Part C of Vols. 1 and 2 focuses on WM. Each part of Vol. 1 contains an overview of the TM, an explanation of the problems facing the volume-specific program, a review of identified technologies, and rankings of technologies applicable to the site. Volume 2 (Pts. A. B. and C) contains the logic linkages among EM goals, environmental problems, and the various technologies that have the potential to solve these problems. Volume 3 (Pts. A. B, and C) contains the TLD data sheets. This volume provides the technology evaluation data sheets (TEDS) for ER/WM activities (D&D, RA and WM) that are referenced by a TEDS code number in Vol. 2 of the TLD. Each of these sheets represents a single logic trace across the TLD. These sheets contain more detail than is given for the technologies in Vol. 2.

  1. Oak Ridge National Laboratory Technology Logic Diagram. Volume 3, Technology evaluation data sheets: Part C, Robotics/automation, Waste management

    Energy Technology Data Exchange (ETDEWEB)

    1993-09-01

    The Oak Ridge National Laboratory Technology Logic Diagram (TLD) was developed to provide a decision support tool that relates environmental restoration (ER) and waste management (WM) problems at Oak Ridge National Laboratory (ORNL) to potential technologies that can remediate these problems. The TLD identifies the research, development, demonstration testing, and evaluation needed to develop these technologies to a state that allows technology transfer and application to decontamination and decommissioning (D&D), remedial action (RA), and WM activities. The TLD consists of three fundamentally separate volumes: Vol. 1, Technology Evaluation; Vol. 2, Technology Logic Diagram and Vol. 3, Technology EvaLuation Data Sheets. Part A of Vols. 1 and 2 focuses on RA. Part B of Vols. 1 and 2 focuses on the D&D of contaminated facilities. Part C of Vols. 1 and 2 focuses on WM. Each part of Vol. 1 contains an overview of the TM, an explanation of the problems facing the volume-specific program, a review of identified technologies, and rankings of technologies applicable to the site. Volume 2 (Pts. A. B. and C) contains the logic linkages among EM goals, environmental problems, and the various technologies that have the potential to solve these problems. Volume 3 (Pts. A. B, and C) contains the TLD data sheets. This volume provides the technology evaluation data sheets (TEDS) for ER/WM activities (D&D, RA and WM) that are referenced by a TEDS code number in Vol. 2 of the TLD. Each of these sheets represents a single logic trace across the TLD. These sheets contain more detail than is given for the technologies in Vol. 2.

  2. PRODUCTION OF PROTOTYPE PARTS USING DIRECT METAL LASER SINTERING TECHNOLOGY

    Directory of Open Access Journals (Sweden)

    Josef Sedlak

    2015-08-01

    Full Text Available Unconventional methods of modern materials preparation include additive technologies which involve the sintering of powders of different chemical composition, granularity, physical, chemical and other utility properties. The technology called Rapid Prototyping, which uses different technological principles of producing components, belongs to this type of material preparation. The Rapid Prototyping technology facilities use photopolymers, thermoplastics, specially treated paper or metal powders. The advantage is the direct production of metal parts from input data and the fact that there is no need for the production of special tools (moulds, press tools, etc.. Unused powder from sintering technologies is re-used for production 98% of the time, which means that the process is economical, as well as ecological.The present paper discusses the technology of Direct Metal Laser Sintering (DMLS, which falls into the group of additive technologies of Rapid Prototyping (RP. The major objective is a detailed description of DMLS, pointing out the benefits it offers and its application in practice. The practical part describes the production and provides an economic comparison of several prototype parts that were designed for testing in the automotive industry.

  3. Y-12 Plant remedial action Technology Logic Diagram: Volume 3, Technology evaluation data sheets: Part A, Remedial action

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-09-01

    The Y-12 Plant Remedial Action Technology Logic Diagram (TLD) was developed to provide a decision-support tool that relates environmental restoration (ER) problems at the Y-12 Plant to potential technologies that can remediate these problems. The TLD identifies the research, development, demonstration, testing, and evaluation needed for sufficient development of these technologies to allow for technology transfer and application to remedial action (RA) activities. The TLD consists of three volumes. Volume 1 contains an overview of the TLD, an explanation of the program-specific responsibilities, a review of identified technologies, and the rankings of remedial technologies. Volume 2 contains the logic linkages among environmental management goals, environmental problems and the various technologies that have the potential to solve these problems. Volume 3 contains the TLD data sheets. This report is Part A of Volume 3 and contains the Remedial Action section.

  4. Y-12 Plant remedial action Technology Logic Diagram: Volume 3, Technology evaluation data sheets: Part B, Characterization; robotics/automation

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-09-01

    The Y-12 Plant Remedial Action Technology Logic Diagram (TLD) was developed to provide a decision-support tool that relates environmental restoration (ER) problems at the Y-12 Plant to potential technologies that can remediate theses problems. The TLD identifies the research, development, demonstration, testing, and evaluation needed for sufficient development of these technologies to allow for technology transfer and application to remedial action (RA) activities. The TLD consists of three volumes. Volume 1 contains an overview of the TLD, an explanation of the program-specific responsibilities, a review of identified technologies, and the rankings of remedial technologies. Volume 2 contains the logic linkages among environmental management goals, environmental problems, and the various technologies that have the potential to solve these problems. Volume 3 contains the TLD data sheets. This report is Part B of Volume 3 and contains the Characterization and Robotics/Automation sections.

  5. Why ethics should be part of health technology assessment.

    Science.gov (United States)

    Hofmann, Bjørn Morten

    2008-01-01

    From the heydays of HTA in the 1970s, it has been argued that ethics should be a part of HTA. Despite more than 30 years with repeated intentions, only few HTA reports include ethical analysis, and there is little agreement on methods for integrating ethics. This poses the question of why it is so important to integrate ethics in HTA? The article analyzes ten arguments for making ethics part of HTA. The validity of the arguments depend on what we mean by "integrating," "ethics," and "HTA." Some of the counterarguments explain why it has taken so long to integrate ethics in HTA and why there are so many ethical approaches. Nevertheless, some of the arguments for making ethics part of HTA appear to be compelling. Health care is a moral endeavor, and the vast potential of technology poses complex moral challenges. A thorough assessment of technology would include reflection on these moral aspects. Ethics provides such a moral reflection. Health technology is a way to improve the life of human individuals. This involves questions of what "the good life" is, and hence ethical issues. Trying to ignore such questions may inflict with the moral foundation of health care: to help people. Additionally, HTA is an evaluation, and as such also a reflection on values. Hence, there is a profound affinity between HTA and ethics. Accordingly, ethics cannot be "integrated" in HTA as ethics is already a constitutive part of HTA. However, ethics can be acknowledged and emphasized.

  6. Additive manufacturing technology in spare parts supply chain

    DEFF Research Database (Denmark)

    Li, Yao; Jia, Guozhu; Yang, Cheng

    2017-01-01

    Additive Manufacturing (AM) technology has the potential to significantly improve supply chain dynamics. The purpose of this paper is to investigate the impact of AM on spare parts supply chain. Three supply chain scenarios are investigated in this paper, namely conventional supply chain......, centralised AM-based supply chain and distributed AM-based supply chain. Based on system dynamics simulations, this paper specifically compares three supply chain scenarios, in terms of total variable cost and carbon emission. The results show the spare part supply chain utilising AM is indeed superior...... to the traditional one in sustainable performance. It is also expected that AM can facilitate the spare parts supply chain to achieve more economic benefits along with its development. To our knowledge, this paper is one of the early studies that explores the impact of AM on supply chain performance...

  7. Additive manufacturing technology in spare parts supply chain

    DEFF Research Database (Denmark)

    Li, Yao; Jia, Guozhu; Yang, Cheng

    2016-01-01

    Additive Manufacturing (AM) technology has the potential to significantly improve supply chain dynamics. The purpose of this paper is to investigate the impact of AM on spare parts supply chain. Three supply chain scenarios are investigated in this paper, namely conventional supply chain......, centralised AM-based supply chain and distributed AM-based supply chain. Based on system dynamics simulations, this paper specifically compares three supply chain scenarios, in terms of total variable cost and carbon emission. The results show the spare part supply chain utilising AM is indeed superior...... to the traditional one in sustainable performance. It is also expected that AM can facilitate the spare parts supply chain to achieve more economic benefits along with its development. To our knowledge, this paper is one of the early studies that explores the impact of AM on supply chain performance...

  8. Human Enhancement Technologies. Verso nuovi modelli antropologici Parte I

    Directory of Open Access Journals (Sweden)

    Luca Lo Sapio

    2013-01-01

    Full Text Available This paper deals with the important topic of human enhancement and tries to focus the question under a new perspective. The international debate is focused around two main theoretical positions: bio-conservatorism and techno-enthusiasm. We seem to be forced to choose one or another conception in order to understand the relationship between human beings and technology. The first part of the paper analyzes different authors trying to circumscribe the principal features of each one. We can notice two main paradigms which are incapable to rightly understand the phenomenon we are considering. The relieves emerging in the first part will be suitable to prosecute the analysis in the second part of the work.

  9. Electrosurgery: part II. Technology, applications, and safety of electrosurgical devices.

    Science.gov (United States)

    Taheri, Arash; Mansoori, Parisa; Sandoval, Laura F; Feldman, Steven R; Pearce, Daniel; Williford, Phillip M

    2014-04-01

    Electrosurgical currents can be delivered to tissue in monopolar or bipolar and monoterminal or biterminal modes, with the primary difference between these modes being their safety profiles. A monopolar electrosurgical circuit includes an active electrode and a dispersive (return) electrode, while there are 2 active electrodes in bipolar mode. In monoterminal mode, there is an active electrode, but there is no dispersive electrode connected to the patient's body and instead the earth acts as the return electrode. Biterminal mode uses a dispersive electrode connected to the patient's body, has a higher maximum power, and can be safer than monoterminal mode in certain situations. Electrosurgical units have different technologies for controlling the output power and for providing safety. A thorough understanding of these technologies helps with a better selection of the appropriate surgical generator and modes.

  10. Cold rolling precision forming of shaft parts theory and technologies

    CERN Document Server

    Song, Jianli; Li, Yongtang

    2017-01-01

    This book presents in detail the theory, processes and equipment involved in cold rolling precision forming technologies, focusing on spline and thread shaft parts. The main topics discussed include the status quo of research on cold rolling precision forming technologies; the design and calculation of process parameters; the numerical simulation of cold rolling forming processes; and the equipment used in cold rolling forming. The mechanism of cold rolling forming is extremely complex, and research on the processes, theory and mechanical analysis of spline cold rolling forming has remained very limited to date. In practice, the forming processes and production methods used are mainly chosen on the basis of individual experience. As such, there is a marked lack of both systematic, theory-based guidelines, and of specialized books covering theoretical analysis, numerical simulation, experiments and equipment used in spline cold rolling forming processes – all key points that are included in this book and ill...

  11. Oak Ridge K-25 Site Technology Logic Diagram. Volume 3, Technology evaluation data sheets; Part A, Characterization, decontamination, dismantlement

    Energy Technology Data Exchange (ETDEWEB)

    Fellows, R.L. [ed.

    1993-02-26

    The Oak Ridge K-25 Technology Logic Diagram (TLD), a decision support tool for the K-25 Site, was developed to provide a planning document that relates environmental restoration and waste management problems at the Oak Ridge K-25 Site to potential technologies that can remediate these problems. The TLD technique identifies the research necessary to develop these technologies to a state that allows for technology transfer and application to waste management, remedial action, and decontamination and decommissioning activities. The TLD consists of four separate volumes-Vol. 1, Vol. 2, Vol. 3A, and Vol. 3B. Volume 1 provides introductory and overview information about the TLD. Volume 2 contains logic diagrams. Volume 3 has been divided into two separate volumes to facilitate handling and use. This report is part A of Volume 3 concerning characterization, decontamination, and dismantlement.

  12. Technology prevention of addictive behavior in children as part of a healthy lifestyle

    Directory of Open Access Journals (Sweden)

    Zolotova A.D.

    2014-03-01

    Full Text Available Purpose : to develop a technology of social and educational prevention of addictive behavior in children as part of the organization of a healthy lifestyle. Material : a theoretical analysis and compilation of more than 50 sources of scientific and methodological literature. Applied methods of modeling and design of social and educational activities. Results : the technology of social and educational prevention of addictive behavior of children in the territorial community. The main components of addictive behavior prevention technologies children are: diagnostic levels of addictive behavior of children in the territorial community; goal-prevention technologies, the choice of technology development or prevention of addictive behavior in children, preparation and planning of prevention, the introduction of technology, expertise and evaluation of the effectiveness of the technology deployed, summing outcomes. Conclusions . prevention of addictive behavior is an integral part of the organization of a healthy lifestyle for children. Procedural embodiment prevention of addictive behavior of children in the life of the territorial community is represented as a developed social and educational technology.

  13. Technology Corner: Visualising Forensic Data: Evidence Guidelines (Part 2

    Directory of Open Access Journals (Sweden)

    Damian Schofield

    2013-06-01

    Full Text Available Visualisation is becoming increasingly important for understanding information, such as investigative data (for example: computing, medical and crime scene evidence and analysis (for example, network capability assessment, data file reconstruction and planning scenarios. Investigative data visualisation is used to reconstruct a scene or item and is used to assist the viewer (who may well be a member of the general public with little or no understanding of the subject matter to understand what is being presented. Analysis visualisations, on the other hand, are usually developed to review data, information and assess competing scenario hypotheses for those who usually have an understanding of the subject matter.Courtroom environments are morphing into cinematic display environments, the media consumed by an audience who are increasingly visually literate and media savvy (Heintz, 2002. There are a number of fundamental implications inherent in the shift from oral to visual mediation and a number of facets of this modern evidence presentation technology needs to be investigated and analysed. One of the primary issues of visualisation is that no matter how coherent the data, there will always be conjecture and debate as to how the information is/has-been visualised and, is it presented in an acceptable and meaningful way.This paper presents a range of examples of where forensic data has been visualised using various techniques and technology, the paper then examines aspects of the visual courtroom evidence presented and discusses some of the benefits and potential problems of implementing this technology. This paper is part two of a two-part series that aims to describe the use of, and provide guidelines for, the use of graphical displays in courtrooms.

  14. Cosmetic devices based on active transdermal technologies.

    Science.gov (United States)

    Scott, Jessica A; Banga, Ajay K

    2015-01-01

    Active transdermal technology, commonly associated with drug delivery, has been used in recent years by the cosmetic industry for the aesthetic restoration of skin and delivery of cosmetic agents. In this article, we provide an overview of the skin's structure, various skin types, skin's self-repair mechanisms that are stimulated from the usage of cosmetic devices and discuss cosmetic applications. Summaries of the most common active transdermal technologies such as microneedles, iontophoresis, sonophoresis, lasers and microdermabrasion will be provided, in relation to the marketed cosmetic devices available that incorporate these technologies. Lastly, we cover combinations of active technologies that allow for more enhanced cosmetic results, and the current limitations of cosmetic devices.

  15. Diagnosis of occlusal caries: Part II. Recent diagnostic technologies.

    Science.gov (United States)

    Tam, L E; McComb, D

    2001-09-01

    Accurate diagnosis of the presence or absence of disease is a fundamental requirement in health care. The diagnosis of non-overt occlusal decay is challenging and can be highly subjective, and its inherent uncertainties can lead to widely differing treatment decisions. The purpose of this 2-part paper is to review current knowledge concerning conventional and new diagnostic methods for occlusal caries. Part I looked at established methods for diagnosing occlusal decay. These methods have several limitations, particularly in their ability to diagnose early carious lesions. Part II examines new and emerging technologies that are being developed for the diagnosis of occlusal decay. Electrical conductance measurements and quantitative laser- or light-induced fluorescence represent significant improvements over conventional diagnostic methods, especially for in vitro applications and particularly with regard to sensitivity and reproducibility. Proponents of the DIAGNOdent laser fluorescence system claim that it evaluates the fluorescence that develops when laser light is incident on areas of demineralization. This noninvasive device is simple to use and provides quantitative data. Studies supporting its validity are limited but do suggest good sensitivity and excellent reproducibility. However, the DIAGNOdent system requires more scientific scrutiny. Although it offers a high rate of disease detection, it has little ability to indicate the extent of decay. In all treatment decisions, clinicians must be aware of the limitations of the diagnostic methods that have been used. Clinical judgment based on the patient s case history, visual cues, review of radiographs and probability of disease is still the most important aspect of optimum patient care. New technologies may provide supplemental information, but they cannot yet replace established methods for the diagnosis of occlusal caries.

  16. Technology to promote and increase physical activity in heart failure.

    Science.gov (United States)

    Franklin, Nina C

    2015-01-01

    Regular physical activity is firmly recommended as part of a multifaceted approach to heart failure (HF) self-management. Unfortunately, research indicates that most patients are less likely to engage in and adhere to such activities. The widespread use of information and communication technology tools and resources offers an innovative and potentially beneficial avenue for increasing physical activity levels in HF patients. This article presents specific ways in which advances in information and communication technologies, including Internet- and mobile-based communications, social media platforms, and self-monitoring health devices, can serve as a means to broadly promote increasing levels of physical activity to improve health outcomes in the HF population.

  17. 77 FR 48169 - The Information Technology Agreement: Advice and Information on the Proposed Expansion: Part 1...

    Science.gov (United States)

    2012-08-13

    ... COMMISSION The Information Technology Agreement: Advice and Information on the Proposed Expansion: Part 1; The Information Technology Agreement: Advice and Information on the Proposed Expansion: Part 2 AGENCY... Information Technology Agreement: Advice and Information on the Proposed Expansion: Part 1, and...

  18. Marshall Space Flight Center ECLSS technology activities

    Science.gov (United States)

    Wieland, Paul

    1990-01-01

    Viewgraphs on Environmental Control and Life Support System (ECLSS) technology activities are presented. Topics covered include: analytical development; ECLSS modeling approach; example of water reclamation modeling needs; and hardware development and testing.

  19. Technology transfer and technological learning through CERN's procurement activity

    CERN Document Server

    Autio, Erkko; Hameri, Ari-Pekka; CERN. Geneva

    2003-01-01

    This report analyses the technological learning and innovation benefits derived from CERN's procurement activity during the period 1997-2001. The base population of our study, the technology-intensive suppliers to CERN, consisted of 629 companies out of 6806 companies during the same period, representing 1197 MCHF in procurement. The main findings from the study can be summarized as follows: the various learning and innovation benefits (e.g., technological learning, organizational capability development, market learning) tend to occur together. Learning and innovation benefits appear to be regulated by the quality of the supplier's relationship with CERN: the greater the amount of social capital built into the relationship, the greater the learning and innovation benefits. Regardless of relationship quality, virtually all suppliers derived significant marketing reference benefits from CERN. Many corollary benefits are associated with procurement activity. As an example, as many as 38% of the respondents devel...

  20. NASDA's activities on vibration isolation technology

    Science.gov (United States)

    1992-01-01

    The National Space Development Agency's (NASDA) activities in providing various vibration isolation technologies for the Space Station Mission are covered in viewgraph form. Technologies covered include an active vibration isolation system for extra sensitive missions in the low frequency range, a passive damping system consisting of a damping rack for the reduction of resonance amplification, and an isolator for vibration isolation from low frequencies. Information is given in viewgraph form on the active vibration isolation concept, voice coil type electromagnetic suspension, a profile of an active vibration isolation system, a three degree of freedom ground experiment, and acceleration feedback.

  1. Review on Cold Spray Process and Technology: Part I—Intellectual Property

    Science.gov (United States)

    Irissou, Eric; Legoux, Jean-Gabriel; Ryabinin, Anatoly N.; Jodoin, Bertrand; Moreau, Christian

    2008-12-01

    The number of research papers as well as of patents and patent applications on cold spray and cold spray related technologies has grown exponentially in the current decade. This rapid growth of activity brought a tremendous amount of information on this technology in a short period of time. The main motivation for this review is to summarize the rapidly expanding common knowledge on cold spray to help researchers and engineers already or soon to be involved for their future endeavors with this new technology. Cold spray is one of the various names for describing an all-solid-state coating process that uses a high-speed gas jet to accelerate powder particles toward a substrate where they plastically deform and consolidate upon impact. Cold gas dynamic spray, cold spray, kinetic spray, supersonic particle deposition, dynamic metallization or kinetic metallization are all terminologies found in the literature that designate the above-defined coating process. This review on cold spray technology is divided into two parts. In this article, Part I, patents and patent applications related to this process are reviewed, starting from the first few mentions of the idea at the beginning of the 20th century to its practical discovery in Russia in the 1980s and its subsequent occidental development and commercialization. The patent review encompasses Russian and USA patents and patent applications. Part II will review the scientific literature giving a general perspective of the current understanding and capability of this process.

  2. Command and Control Related Computer Technology. Part I. Packet Radio. Part II. Speech Compression and Evaluation

    Science.gov (United States)

    1975-12-01

    Radio group has now assimilated the history and context of the project and has become an active and important member of the group. Resolution of...vii ^ i N - i .-.■ Si • ■ - %■ ’■:■ .". <- * ■ ’ . ■ ■ - v. .■’. parts, one for consonants and one for vowels . It is a nonsense...position, and the response set for each item is a minimal pair of English monosyllables. The Phoneme-Specific Intelligibi1ity test covers vowels

  3. Information Technologies In Transformation Of Marketing Activity

    OpenAIRE

    Nina Ilarionova

    2011-01-01

    The goal of the paper is to provide a comprehensive review of marketing issues influenced by information technologies. The macro-environment of marketing activity, strategic issues like marketing philosophy, marketing research and segmentation as well as marketing mix were analysed. The main findings are the following: IT advances do change every element of marketing activity of any company, offering both opportunities and threats.

  4. Oak Ridge National Laboratory Technology Logic Diagram. Volume 1, Technology Evaluation: Part A, Decontamination and Decommissioning

    Energy Technology Data Exchange (ETDEWEB)

    1993-09-01

    The Strategic Roadmap for the Oak Ridge Reservation is a generalized planning document that identifies broad categories of issues that keep ORNL outside full compliance with the law and other legally binding agreements. Possible generic paths to compliance, issues, and the schedule for resolution of the issues one identified. The role of the Oak Ridge National Laboratory Technology Logic Diagram (TLD) is then to identify specific site issues (problems), identify specific technologies that can be brought to bear on the issues, and assess the current status and readiness of these remediation technologies within the constraints of the schedule commitment. Regulatory requirements and commitments contained in the Strategic Roadmap for the Oak Ridge Reservation are also included in the TLD as constraints to the application of immature technological solutions. Some otherwise attractive technological solutions may not be employed because they may not be deployable on the schedule enumerated in the regulatory agreements. The roadmap for ORNL includes a list of 46 comprehensive logic diagrams for WM of low-level, radioactive-mixed, hazardous, sanitary and industrial. and TRU waste. The roadmapping process gives comparisons of the installation as it exists to the way the installation should exist under full compliance. The identification of the issues is the goal of roadmapping. This allows accurate and timely formulation of activities.

  5. Robotics-Control Technology. Technology Learning Activity. Teacher Edition. Technology Education Series.

    Science.gov (United States)

    Oklahoma State Dept. of Vocational and Technical Education, Stillwater. Curriculum and Instructional Materials Center.

    This document contains the materials required for presenting an 8-day competency-based technology learning activity (TLA) designed to introduce students in grades 6-10 to advances and career opportunities in the field of robotics-control technology. The guide uses hands-on exploratory experiences into which activities to help students develop…

  6. 15 CFR Supplement No. 2 to Part 783 - Manufacturing Activities

    Science.gov (United States)

    2010-01-01

    ... 15 Commerce and Foreign Trade 2 2010-01-01 2010-01-01 false Manufacturing Activities No. Supplement No. 2 to Part 783 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade... Part 783—Manufacturing Activities The following constitute manufacturing activities that require...

  7. Taking Part in Technology Education: Elements in Students' Motivation

    Science.gov (United States)

    Autio, Ossi; Hietanoro, Jenni; Ruismaki, Heikki

    2011-01-01

    The purpose of this study was to determine the elements motivating comprehensive school students to study technology education. In addition, we tried to discover how students' motivation towards technology education developed over the period leading up to their school experience and the effect this might have on their future involvement with…

  8. Second International Symposium on Magnetic Suspension Technology, part 1

    Science.gov (United States)

    Groom, Nelson J. (Editor); Britcher, Colin P. (Editor)

    1994-01-01

    In order to examine the state of technology of all areas of magnetic suspension and to review related recent developments in sensors and controls approaches, superconducting magnet technology, and design/implementation practices, the Second International Symposium on Magnetic Suspension Technology was held. The symposium included 18 technical sessions in which 44 papers were presented. The technical sessions covered the areas of bearings, bearing modeling, controls, vibration isolation, micromachines, superconductivity, wind tunnel magnetic suspension systems, magnetically levitated trains (MAGLEV), rotating machinery and energy storage, and applications. A list of attendees appears at the end of the document.

  9. Second International Symposium on Magnetic Suspension Technology, part 2

    Science.gov (United States)

    Groom, Nelson J. (Editor); Britcher, Colin P. (Editor)

    1994-01-01

    In order to examine the state of technology of all areas of magnetic suspension and to review related recent developments in sensors and controls approaches, superconducting magnet technology, and design/implementation practices, the 2nd International Symposium on Magnetic Suspension Technology was held at the Westin Hotel in Seattle, WA, on 11-13 Aug. 1993. The symposium included 18 technical sessions in which 44 papers were presented. The technical sessions covered the areas of bearings, bearing modelling, controls, vibration isolation, micromachines, superconductivity, wind tunnel magnetic suspension systems, magnetically levitated trains (MAGLEV), rotating machinery and energy storage, and applications. A list of attendees appears at the end of the document.

  10. NASA's Microgravity Technology Report: Summary of Activities 1997

    Science.gov (United States)

    Woodard, Dan

    1998-01-01

    The purpose of the 1997 NASA Microgravity Technology Report is to update the Microgravity Research Program's technology development policy and to present and assess current technology related activities and requirements identified within its research and technology disciplines.

  11. International Symposium on Magnetic Suspension Technology, Part 2

    Science.gov (United States)

    Groom, Nelson J. (Editor); Britcher, Colin P. (Editor)

    1992-01-01

    In order to examine the state of technology of all areas of magnetic suspension and to review related recent developments in sensors and controls approaches, superconducting magnet technology, and design/implementation practices, a symposium was held. The proceedings are presented. The sessions covered the areas of bearings, sensors and controls, microgravity and vibration isolation, superconductivity, manufacturing applications, wind tunnel magnetic suspension systems, magnetically levitated trains (MAGLEV), space applications, and large gap magnetic suspension systems.

  12. The Mixed Waste Management Facility: Technology selection and implementation plan, Part 2, Support processes

    Energy Technology Data Exchange (ETDEWEB)

    Streit, R.D.; Couture, S.A.

    1995-03-01

    The purpose of this document is to establish the foundation for the selection and implementation of technologies to be demonstrated in the Mixed Waste Management Facility, and to select the technologies for initial pilot-scale demonstration. Criteria are defined for judging demonstration technologies, and the framework for future technology selection is established. On the basis of these criteria, an initial suite of technologies was chosen, and the demonstration implementation scheme was developed. Part 1, previously released, addresses the selection of the primary processes. Part II addresses process support systems that are considered ``demonstration technologies.`` Other support technologies, e.g., facility off-gas, receiving and shipping, and water treatment, while part of the integrated demonstration, use best available commercial equipment and are not selected against the demonstration technology criteria.

  13. Managing Returnable Containers Logistics - A Case Study Part II - Improving Visibility through Using Automatic Identification Technologies

    Directory of Open Access Journals (Sweden)

    Gretchen Meiser

    2011-05-01

    Full Text Available This case study is the result of a project conducted on behalf of a company that uses its own returnable containers to transport purchased parts from suppliers. The objective of this project was to develop a proposal to enable the company to more effectively track and manage its returnable containers. The research activities in support of this project included (1 the analysis and documentation of the physical flow and the information flow associated with the containers and (2 the investigation of new technologies to improve the automatic identification and tracking of containers. This paper explains the automatic identification technologies and important criteria for selection. A companion paper details the flow of information and containers within the logistics chain, and it identifies areas for improving the management of the containers.

  14. The new technology for manufacturing polymer Nanopowder. Part 2

    Directory of Open Access Journals (Sweden)

    GRYAZNOV Igor Vasilevich

    2016-01-01

    Full Text Available The authors studied the problem of pollution by waste polymers. The research is dedicated to the methods of recycling of polymers, in particular PTFE. It was shown that the most environmentally friendly disposal methods with the lowest cost are the methods based on stepwise mechanical dispersion. Technologies and devices based on the principles of abrasive vortex dispersion polymers have been developed and tested. To protect the intellectual property of the author the staff of LLC TARK (Ukraine and the Science and Technology Center Polymate (Israel registered patent «Method and apparatus for manufacturing submicron polymer powder» USA No. 12 / 981.202 of 29.12.2010.

  15. The new technology for manufacturing polymer Nanopowder. Part 1

    Directory of Open Access Journals (Sweden)

    GRYAZNOV Igor Vasilevich

    2015-10-01

    Full Text Available The authors studied the problem of pollution by waste polymers. The research is dedicated to the methods of recycling of polymers, in particular PTFE. It was shown that the most environmentally friendly disposal methods with the lowest cost are the methods based on stepwise mechanical dispersion. Technologies and devices based on the principles of abrasive vortex dispersion polymers have been developed and tested. To protect the intellectual property of the author the staff of LLC TARK (Ukraine and the Science and Technology Center Polymate (Israel registered patent «Method and apparatus for manufacturing submicron polymer powder» USA No. 12 / 981.202 of 29.12.2010.

  16. International Symposium on Magnetic Suspension Technology, Part 1

    Science.gov (United States)

    Groom, Nelson J. (Editor); Britcher, Colin P. (Editor)

    1992-01-01

    The goal of the symposium was to examine the state of technology of all areas of magnetic suspension and to review related recent developments in sensors and controls approaches, superconducting magnet technology, and design/implementation practices. The symposium included 17 technical sessions in which 55 papers were presented. The technical session covered the areas of bearings, sensors and controls, microgravity and vibration isolation, superconductivity, manufacturing applications, wind tunnel magnetic suspension systems, magnetically levitated trains (MAGLEV), space applications, and large gap magnetic suspension systems.

  17. Extravehicular Activity Technology Development Status and Forecast

    Science.gov (United States)

    Chullen, Cinda; Westheimer, David T.

    2011-01-01

    The goal of NASA s current EVA technology effort is to further develop technologies that will be used to demonstrate a robust EVA system that has application for a variety of future missions including microgravity and surface EVA. Overall the objectives will be to reduce system mass, reduce consumables and maintenance, increase EVA hardware robustness and life, increase crew member efficiency and autonomy, and enable rapid vehicle egress and ingress. Over the past several years, NASA realized a tremendous increase in EVA system development as part of the Exploration Technology Development Program and the Constellation Program. The evident demand for efficient and reliable EVA technologies, particularly regenerable technologies was apparent under these former programs and will continue to be needed as future mission opportunities arise. The technological need for EVA in space has been realized over the last several decades by the Gemini, Apollo, Skylab, Space Shuttle, and the International Space Station (ISS) programs. EVAs were critical to the success of these programs. Now with the ISS extension to 2028 in conjunction with a current forecasted need of at least eight EVAs per year, the EVA hardware life and limited availability of the Extravehicular Mobility Units (EMUs) will eventually become a critical issue. The current EMU has successfully served EVA demands by performing critical operations to assemble the ISS and provide repairs of satellites such as the Hubble Space Telescope. However, as the life of ISS and the vision for future mission opportunities are realized, a new EVA systems capability will be needed and the current architectures and technologies under development offer significant improvements over the current flight systems. In addition to ISS, potential mission applications include EVAs for missions to Near Earth Objects (NEO), Phobos, or future surface missions. Surface missions could include either exploration of the Moon or Mars. Providing an

  18. Mathematics on the Move: Using Mobile Technologies to Support Student Learning (Part 2)

    Science.gov (United States)

    Attard, Catherine; Northcote, Maria

    2012-01-01

    Continuing the series of articles on teaching mathematics with technology, this article furthers the authors' exploration of the use of a range of mobile technologies to enhance teachers' practices in the primary mathematics classroom. In Part 1 of this article, the authors explored the use of the iPod Touch and iPad. In Part 2, they explore…

  19. e-Learning in medical education Guide 32 Part 2: Technology, management and design.

    Science.gov (United States)

    Masters, Ken; Ellaway, Rachel

    2008-06-01

    With e-learning now part of the medical education mainstream, both educational and practical technical and informatics skills have become an essential part of the medical teacher's portfolio. The Guide is intended to help teachers develop their skills in working in the new online educational environments, and to ensure that they appreciate the wider changes and developments that accompany this 'information revolution'. The Guide is divided into two parts, of which this is the second. The first part introduced the basic concepts of e-learning, e-teaching, and e-assessment, the day-to-day issues of e-learning, looking both at theoretical concepts and practical implementation issues. This second part covers topics such as practical knowledge of the forms of technology used in e-learning, the behaviours of teachers and learners in online environments and the design of e-learning content and activities. It also deals with broader concepts of the politics and psychology of e-learning, as well as many of its ethical, legal and economical dimensions, and it ends with a review of emerging forms and directions in e-learning in medical education.

  20. 15 CFR Supplement No. 2 to Part 774 - General Technology and Software Notes

    Science.gov (United States)

    2010-01-01

    ... 15 Commerce and Foreign Trade 2 2010-01-01 2010-01-01 false General Technology and Software Notes... REGULATIONS THE COMMERCE CONTROL LIST Pt. 774, Supp. 2 Supplement No. 2 to Part 774—General Technology and Software Notes 1. General Technology Note. The export of “technology” that is “required” for the...

  1. Practice improvement, part II: update on patient communication technologies.

    Science.gov (United States)

    Roett, Michelle A; Coleman, Mary Thoesen

    2013-11-01

    Patient portals (ie, secure web-based services for patient health record access) and secure messaging to health care professionals are gaining popularity slowly. Advantages of web portals include timely communication and instruction, access to appointments and other services, and high patient satisfaction. Limitations include inappropriate use, security considerations, organizational costs, and exclusion of patients who are uncomfortable with or unable to use computers. Attention to the organization's strategic plan and office policies, patient and staff expectations, workflow and communication integration, training, marketing, and enrollment can facilitate optimal use of this technology. Other communication technologies that can enhance patient care include automated voice or text reminders and brief electronic communications. Social media provide another method of patient outreach, but privacy and access are concerns. Incorporating telehealthcare (health care provided via telephone or Internet), providing health coaching, and using interactive health communication applications can improve patient knowledge and clinical outcomes and provide social support.

  2. Part 2 -- current program integrating strategies and lubrication technology

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, B.

    1996-12-01

    This paper is the second of two that describe the Predictive Maintenance Program for rotating machinery at the Palo Verde Nuclear Generating Station. The Predictive Maintenance program has been enhanced through organizational changes and improved interdisciplinary usage of technology. This paper will discuss current program strategies that have improved the interaction between the Vibration and Lube Oil programs. The {open_quotes}Lube Oil{close_quotes} view of the combined program along with case studies will then be presented.

  3. The new technology for manufacturing polymer Nanopowder. Part 2

    OpenAIRE

    GRYAZNOV Igor Vasilevich; FIGOVSKY Oleg Lvovich

    2016-01-01

    The authors studied the problem of pollution by waste polymers. The research is dedicated to the methods of recycling of polymers, in particular PTFE. It was shown that the most environmentally friendly disposal methods with the lowest cost are the methods based on stepwise mechanical dispersion. Technologies and devices based on the principles of abrasive vortex dispersion polymers have been developed and tested. To protect the intellectual property of the author the staff of LLC TARK (Ukrai...

  4. The new technology for manufacturing polymer Nanopowder. Part 1

    OpenAIRE

    GRYAZNOV Igor Vasilevich; FIGOVSKY Oleg Lvovich

    2015-01-01

    The authors studied the problem of pollution by waste polymers. The research is dedicated to the methods of recycling of polymers, in particular PTFE. It was shown that the most environmentally friendly disposal methods with the lowest cost are the methods based on stepwise mechanical dispersion. Technologies and devices based on the principles of abrasive vortex dispersion polymers have been developed and tested. To protect the intellectual property of the author the staff of LLC TARK (Ukrai...

  5. Technological Support of Critical Parts for Railway Transport Working Properties

    Science.gov (United States)

    Gabets, A. V.; Gabets, D. A.; Markov, A. M.; Radchenko, M. V.; Leonov, S. L.

    2017-01-01

    The materials of complex research of operational properties of a new brand cast iron CHMN-35M. Optimal chemical composition was determined. The obtained results allow to conclude about possibility of its use for the manufacture of critical parts of rolling stock of railway transport, in particular of a side bearing cap

  6. From Lunar Regolith to Fabricated Parts: Technology Developments and the Utilization of Moon Dirt

    Science.gov (United States)

    McLemore, C. A.; Fikes, J. C.; McCarley, K. S.; Good, J. E.; Gilley, S. D.; Kennedy, J. P.

    2008-01-01

    The U.S. Space Exploration Policy has as a cornerstone the establishment of an outpost on the moon. This lunar outpost wil1 eventually provide the necessary planning, technology development, testbed, and training for manned missions in the future beyond the Moon. As part of the overall activity, the National Aeronautics and Space Administration (NASA) is investigating how the in situ resources can be utilized to improve mission success by reducing up-mass, improving safety, reducing risk, and bringing down costs for the overall mission. Marshall Space Flight Center (MSFC), along with other NASA centers, is supporting this endeavor by exploring how lunar regolith can be mined for uses such as construction, life support, propulsion, power, and fabrication. An infrastructure capable of fabrication and nondestructive evaluation will be needed to support habitat structure development and maintenance, tools and mechanical parts fabrication, as well as repair and replacement of space-mission hardware such as life-support items, vehicle components, and crew systems, This infrastructure will utilize the technologies being developed under the In Situ Fabrication and Repair (ISFR) element, which is working in conjunction with the technologies being developed under the In Situ Resources Utilization (ISRU) element, to live off the land. The ISFR Element supports the Space Exploration Initiative by reducing downtime due to failed components; decreasing risk to crew by recovering quickly from degraded operation of equipment; improving system functionality with advanced geometry capabilities; and enhancing mission safety by reducing assembly part counts of original designs where possible. This paper addresses the need and plan for understanding the properties of the lunar regolith to determine the applicability of using this material in a fabrication process. This effort includes the development of high fidelity simulants that will be used in fabrication processes on the ground to

  7. An integrated model for part-operation allocation and investments in CNC technology

    NARCIS (Netherlands)

    Bokhorst, J.A.C.; Slomp, J.; Suresh, N.

    2002-01-01

    This study addresses the issue of investment appraisal of new technology, specifically computer numerical control (CNC) machine tools in conjunction with optimal allocation of parts and operations on CNC machines as the investments take place. Part-operation allocation is the allocation of parts and

  8. An integrated model for part-operation allocation and investments in CNC technology

    NARCIS (Netherlands)

    Bokhorst, J.A.C.; Slomp, J.; Suresh, N.

    2002-01-01

    This study addresses the issue of investment appraisal of new technology, specifically computer numerical control (CNC) machine tools in conjunction with optimal allocation of parts and operations on CNC machines as the investments take place. Part-operation allocation is the allocation of parts and

  9. Competitive policies in the Nordic energy research and innovation area - eNERGIA : Part 2: Technology reports

    Energy Technology Data Exchange (ETDEWEB)

    Klitkou, Antje; Pedersen, Trond Einar; Scordato, Lisa; Mariussen, Aage

    2008-07-01

    This (Part 2: Technology reports) is the second report about the results from the eNERGIA project. The first report deals with the countries covered by the eNERGIA project, while the third report sums up the SWOT-analysis, the eNERGIA workshops and the case studies of good practice. A short synthesis report summarises the entire project. This second report mainly deals with selected renewable energy technologies from different perspectives. The report comprises the following nine chapters. Chapter 1 is the presentation of the selected renewable technologies (solar photovoltaic technology, wind technology, 2nd generation bio-energy technology, wave technology and hydroelectric technology) and a subsequent elaboration of the status of the technologies in the Nordic and Baltic countries. Chapter 2 gives an overview of patterns of international R&D collaboration as seen from the countries in question. Chapter 3 draws on technology specific patenting data and bibliometric data, describing the level of technology specific activity in each country. Chapter 4 and 5 describe the status of renewable energy production and renewable energy research respectively in each country. The four last chapters are relatively brief descriptions of the situation in the Nordic and Baltic countries. Chapter 6 gives an overview of the venture capital situation. Chapter 7 is about market regulations and Chapter 8 is about social concerns. Finally, Chapter 9 addresses infrastructural challenges. (Author) 77 figs., 70 tabs

  10. The technology - activities of daily living questionnaire: a version with a technology-related subscale.

    Science.gov (United States)

    Muñoz-Neira, Carlos; López, Oscar L; Riveros, Rodrigo; Núñez-Huasaf, Javier; Flores, Patricia; Slachevsky, Andrea

    2012-01-01

    Information and communication technology (ICT) has become an increasingly important part of daily life. The ability to use technology is becoming essential for autonomous functioning in society. Current functional scales for patients with cognitive impairment do not evaluate the use of technology. The objective of this study was to develop and validate a new version of the Activities of Daily Living Questionnaire (ADLQ) that incorporates an ICT subscale. A new technology-based subscale was incorporated into the Spanish version of the ADLQ (SV-ADLQ), entitled the Technology version of the ADLQ (T-ADLQ). The T-ADLQ was administered to 63 caregivers of dementia patients, 21 proxies of mild cognitive impairment patients and 44 proxies of normal elderly subjects (mean age of the sample ± SD: 73.5 ± 8.30 years). We analysed the convergent validity, internal consistency, reliability cut-off point, sensitivity and specificity of the T-ADLQ. The results of the T-ADLQ were compared to the SV-ADLQ. The T-ADLQ showed significant correlations with the Mini-Mental State Examination (MMSE), the Frontal Assessment Battery (FAB) as well as other measures of functional impairment and dementia severity (MMSE: r = -0.70; FAB: r = -0.65; Functional Assessment Questionnaire: r = 0.77; Instrumental Activities of Daily Living Scale: r = -0.75; Clinical Dementia Rating Scale: r = 0.72; p technology items in the T-ADLQ did not improve the performance of the scale, which may reflect the lack of widespread use of technology by elderly individuals. Thus, although it appeared reasonable to add technology use questions to the ADLQ, our experience suggested that this has to be done cautiously, since the sensitivity of these additional items could vary in different populations. The T-ADLQ needs to be validated in a different population of dementia subjects. Copyright © 2012 S. Karger AG, Basel.

  11. Guidance manual for conducting technology demonstration activities

    Energy Technology Data Exchange (ETDEWEB)

    Jolley, Robert L.; Morris, Michael I.; Singh, Suman P.N.

    1991-12-01

    This demonstration guidance manual has been prepared to assist Martin Marietta Energy Systems, Inc. (Energy Systems), staff in conducting demonstrations. It is prepared in checklist style to facilitate its use and assumes that Energy Systems personnel have project management responsibility. In addition to a detailed step-by-step listing of procedural considerations, a general checklist, logic flow diagram, and several examples of necessary plans are included to assist the user in developing an understanding of the many complex activities required to manage technology demonstrations. Demonstrations are pilot-scale applications of often innovative technologies to determine the commercial viability of the technologies to perform their designed function. Demonstrations are generally conducted on well-defined problems for which existing technologies or processes are less than satisfactory in terms of effectiveness, cost, and/or regulatory compliance. Critically important issues in demonstration management include, but are not limited to, such factors as communications with line and matrix management and with the US Department of Energy (DOE) and Energy Systems staff responsible for management oversight, budgetary and schedule requirements, regulatory compliance, and safety.

  12. Extravehicular Activity (EVA) Technology Development Status and Forecast

    Science.gov (United States)

    Chullen, Cinda; Westheimer, David T.

    2010-01-01

    Beginning in Fiscal Year (FY) 2011, Extravehicular activity (EVA) technology development became a technology foundational domain under a new program Enabling Technology Development and Demonstration. The goal of the EVA technology effort is to further develop technologies that will be used to demonstrate a robust EVA system that has application for a variety of future missions including microgravity and surface EVA. Overall the objectives will be reduce system mass, reduce consumables and maintenance, increase EVA hardware robustness and life, increase crew member efficiency and autonomy, and enable rapid vehicle egress and ingress. Over the past several years, NASA realized a tremendous increase in EVA system development as part of the Exploration Technology Development Program and the Constellation Program. The evident demand for efficient and reliable EVA technologies, particularly regenerable technologies was apparent under these former programs and will continue to be needed as future mission opportunities arise. The technological need for EVA in space has been realized over the last several decades by the Gemini, Apollo, Skylab, Space Shuttle, and the International Space Station (ISS) programs. EVAs were critical to the success of these programs. Now with the ISS extension to 2028 in conjunction with a current forecasted need of at least eight EVAs per year, the EVA technology life and limited availability of the EMUs will become a critical issue eventually. The current Extravehicular Mobility Unit (EMU) has vastly served EVA demands by performing critical operations to assemble the ISS and provide repairs of satellites such as the Hubble Space Telescope. However, as the life of ISS and the vision for future mission opportunities are realized, a new EVA systems capability could be an option for the future mission applications building off of the technology development over the last several years. Besides ISS, potential mission applications include EVAs for

  13. Visible Parts, Invisible Whole: Swedish Technology Student Teachers' Conceptions about Technological Systems

    Science.gov (United States)

    Hallström, Jonas; Klasander, Claes

    2017-01-01

    Technological systems are included as a component of national technology curricula and standards for primary and secondary education as well as corresponding teacher education around the world. Little is known, however, of how pupils, students, and teachers conceive of technological systems. In this article we report on a study investigating…

  14. Citrus fruits. Part II. Chemistry, technology, and quality evaluation. B. Technology.

    Science.gov (United States)

    Ranganna, S; Govindarajan, V S; Ramana, K V

    1983-01-01

    In Part II of this review on citrus fruits, the literature on chemistry, technology, and quality evaluation are critically considered. Sweet oranges, mandarin, grapefruit, lemon, and lime are generally used for processing. The literature on chemical components of citrus fruit which include sugars, polysaccharides, organic acids, nitrogenous constituents and lipids; carotenoids which contribute to color; vitamins and minerals and flavonoids; limonoids, some of which impart bitterness to the juice; and the volatile components which contribute to aroma were reviewed in section A. Chilled and pasteurized juices, juice concentrates, and beverages are the important products manufactured commercially, and to a limited extent powdered citrus juices, canned segments, and marmalades. The literature on the manufacture of these products also as new types of juice and oil extractors; TASTE and other types of evaporators; tank farms to store juice and concentrate in bulk; aseptic filling in bulk containers and retail packs; alternate flexible and rigid containers other than glass and tin; and recovery of volatile flavoring constituents during juice processing are some of the important technological developments in the recent past and have been discussed in this section. Bitterness in citrus juices and its control, composition of cloud, and its stability and changes during storage have been reviewed. Essential oils, pectin, frozen and dried juice sacs, dried pulp and molasses, flavonoids, seed oil, and meal are the important byproducts, the manufacture of which is given in essential details. Generally, consumers judge the product on the basis of its sensory attributes. The quality of finished product is dependent upon the raw materials used and control of processes. In section C, the U.S. Department of Agriculture (USDA) standards for different products, physicochemical and microbiological parameters prescribed as indices of quality of fruit, juice, concentrate, and other

  15. The NASA Electronic Parts and Packaging (NEPP) Program: Insertion of New Electronics Technologies

    Science.gov (United States)

    LaBel, Kenneth A.; Sampson, Michael J.

    2007-01-01

    This viewgraph presentation gives an overview of NASA Electronic Parts and Packaging (NEPP) Program's new electronics technology trends. The topics include: 1) The Changing World of Radiation Testing of Memories; 2) Even Application-Specific Tests are Costly!; 3) Hypothetical New Technology Part Qualification Cost; 4) Where we are; 5) Approaching FPGAs as a More Than a "Part" for Reliability; 6) FPGAs Beget Novel Radiation Test Setups; 7) Understanding the Complex Radiation Data; 8) Tracking Packaging Complexity and Reliability for FPGAs; 9) Devices Supporting the FPGA Need to be Considered; 10) Summary of the New Electronic Technologies and Insertion into Flight Programs Workshop; and 11) Highlights of Panel Notes and Comments

  16. Ginger--chemistry, technology, and quality evaluation: part 1.

    Science.gov (United States)

    Govindarajan, V S

    1982-01-01

    Ginger is used in more ways than any other spice. This monograph, published in two parts, comprehensively reviews production, trade, processing, chemistry, and evaluation of quality. Botany, world varieties, agronomy, crop improvement and potential are reviewed briefly with emphasis on the yield of functional components. Processing for the market, international trade patterns, and factors influencing them are discussed. Derived products such as ginger powder, syruped ginger, volatile oil, and oleoresin are discussed in greater detail. The increasing world demand for quality products of added value such as the oleoresin and volatile oil show prospects for their production in the growing countries. The chemistry of the components which contribute aroma and pungency that characterize ginger is critically reviewed. The second part deals with evaluation of quality. The physico-chemical parameters prescribed as a measure of quality for ginger and its products in the existing standards can assure only hygienic quality and purity, and possibly the source, when new parameters such as GC-fingerprints are included. The importance of sensorily evaluating flavor quality is emphasized to understand the variation in flavor quality required by the industrial and retail markets. Related areas, such as problems in sensory evaluation of intense flavored substances, objective flavor profile analysis, and correlation of instrumental and sensory data, are discussed and our recent work in this area is summarized. Areas where more research are needed are indicated. Other areas briefly discussed are functional, physiological, and toxicological properties in use of ginger; biosynthetic aspects of the components stimulating flavor; and structure and pungency and chemistry of spices from allied species and genera. A comprehensive bibliography is provided to aid in further study and research.

  17. Ginger-chemistry, technology, and quality evaluation: part 2.

    Science.gov (United States)

    Govindarajan, V S

    1982-01-01

    Ginger is used in more ways than any other spice. This monograph, published in two parts, comprehensively reviews production, trade, processing, chemistry, and evaluation of quality. Botany, world varieties, agronomy, crop improvement, and potential are reviewed briefly with emphasis on the yield of functional components. Processing for the market, international trade patterns and factors influencing them are discussed. Derived products such as ginger powder, syruped ginger, volatile oil, and oleoresin are discussed in greater detail. The increasing world demand for quality products of added value such as the oleoresin and volatile oil show the prospects for their production in the growing countries. The chemistry of the components which contribute aroma and pungency that characterize ginger is critically reviewed. The second part deals with evaluation of quality. The physicochemical parameters prescribed as a measure of quality for ginger and its products in the existing standards, can assure only hygienic quality and purity, and possibly the source, when new parameters such as GC-finger prints are included. The importance of sensorily evaluating flavor quality is emphasized to understand the variation in flavor quality required by the industrial and retail markets. Related areas, such as problems in sensory evaluation of intense flavored substances, objective flavor profile analysis, correlation of instrumental and sensory data are discussed, and our recent work in this area is summarized. Areas where more research is needed are indicated. Other areas briefly discussed are functional, physiological, and toxicological properties in use of ginger; biosynthetic aspects of components stimulating flavor; structure and pungency and chemistry of spices from allied species and genera. A comprehensive bibliography is provided to aid in further study and research.

  18. Joining technology for parts for plastic and thin sheet metal parts; Fuegetechniken fuer Bauteile aus Kunststoff und duennwandigem Metall

    Energy Technology Data Exchange (ETDEWEB)

    Ahlers-Hestermann, G. [BOELLHOFF, Bielefeld (Germany)

    2001-07-01

    With the ongoing application of new materials (Al, Mg, Plastic) as an alternative to steel in light-weight body in white construction it is necessary to develop and use other joining and fixing technologies than spot welding, bolt-and nut-welding. These new technologies for example are mechanical joining technology as clinching and self-pierce-riveting, blind-riveting and special elements to fix other parts as blind-rivets and self-piercing nuts and bolts. These products are mainly used for metal materials and mixed structures. To fix other parts to plastic-parts direct-screwing or the after-moulding-technology with metal or plastic inserts is used. (orig.) [German] Mit der verstaerkten Anwendung von weiteren Werkstoffen (Al, Mg, Kunststoffe) als Stahl im Automobilbau ist die Notwendigkeit erwachsen, alternative Fuege- und Befestigungstechniken zum Punktschweissen, Bolzen- und Mutternschweissen zu entwickeln. Hierzu gehoeren die mechanischen Fuegetechniken wie Stanznieten, Clinchen, Blindnieten sowie die sogenannten Funktionselemente zum Befestigen von Anbauteilen, wie Blind- und Stanznietmuttern und -bolzen. Diese Verfahren werden ueberwiegend fuer metallische Werkstoffe oder bei Mischbauweise angewandt. Fuer die Befestigung an Kunststoffbauteilen wird die Direktverschraubung oder die after-moulding-technik (AMTEC {sup registered}) verwendet. (orig.)

  19. Technology Integration into Teacher Preparation:Part 2—Theory into Practice

    Directory of Open Access Journals (Sweden)

    Mesut DURAN

    2010-12-01

    Full Text Available In Part 1 of a two-part article series, the authors reported on the shortcomings of existing teacher preparation practice concerning technology and teacher education and described the theoretical grounding behind one model for integrating technology intoteacher preparation (Duran & Fossum, 2010. Part 2 here reports on a research project that applied the model at a major university in the U.S. Over a three-year period involving seven cohort groups, 246 educators participated in the study, which combined both quantitative and qualitative data collection and analysis. Findings indicate that over the course of the program, project participants significantly improved their confidence and competence in technology literacy as well as integration of information technology intothe teaching and learning process. The study demonstrates that an approach to professional development that encourages networking, mutual learning, and sharing of strategies and resources among K-16 educators can be effective in improving technology integration in teacher preparation.

  20. [Hi-tech trends in future dentistry--part A: computerized technologies].

    Science.gov (United States)

    Feuerstein, O; Houri-Haddad, Y; Lipovetsky, M; Perez-Davidi, M; Weiss, E I

    2006-07-01

    Growing knowledge and information in the field of dentistry has had a great impact on dental education, management and practice. A prominent change is the digital revolution, which presents new computed technologies and accessible means of communication for sharing written and visual information. Biotechnology, yet another innovated field, will change dentistry even further. This article presents dental innovations forwarded by Israeli Hi-Tech companies. An overview of some advances in technology in the field of dentistry is presented. Part of the described technologies is in R&D phase, part is under preliminary clinical evaluation, and a few have undergone short-term clinical studies. Part A of the article discusses the application of computerized imaging systems to educational purposes, diagnostics and treatment; part B presents other diagnostic and therapeutic technologies.

  1. Physiotherapy Students’ Use of Online Technology as part of their Learning Practices: A Case Study

    Directory of Open Access Journals (Sweden)

    M. Rowe

    2012-12-01

    Full Text Available The relevance of non-technical skills have long been acknowledged asimportant components of clinical learning, and there is evidence that integrating technologycan facilitate their development by encouraging reflection, and by enhancing communicationand reasoning. However, effectively integrating technology into learning practices must takethe contextual needs of students into consideration. The aim of this study was to determinewhat online tools undergraduate physiotherapy students at one South African university arefamiliar with, and how they use them as part of their learning practices.The case study was conducted in a university physiotherapy department in the WesternCape during 2010. A cross-sectional, descriptive design used a survey to obtain quantitativeand qualitative data from participants, and a pilot study was conducted to test the reliability of the instrument. All ethicalconsiderations were adhered to.Seventy six percent of participants had access to the internet at home, and 93% of them belonged to a social network, althoughfewer than half used it for their studying. Few students reported using the internet for more than information retrieval but reportedwanting to use it for enhanced communication with lecturers. Almost all respondents believed that lectures were a useful way tolearn. However, 61% added that integrating online learning activities with lectures could have value.Integrating technology into healthcare education has the potential to develop non-technical skills that are relevant for clinicalpractice. However, this group of students currently lack the experience and insight to use technology effectively as part of theirlearning practices. Educators must take cognisance of the educational and contextual needs of students if they wish to integratetechnology into clinical teaching.

  2. CNC PART PROGRAMMING TECNIQUE AND CREATING CYLINDIRICAL PLOUGH ACTIVE SURFACE BY USING THIS TECHNIQUE

    Directory of Open Access Journals (Sweden)

    Yaşar KARAGÖZ

    2001-02-01

    Full Text Available "CNC" is an abbreviation for computer aided numerical control systems. Thanks to this system, operators can achieve a lot of work which cannot be realized by classical looms, in a short time, with higher quality in cheaperway. The term of "Part Programming" defines a group of commands to be included in the loom control unit of a loom which is designed to process a part or a certain machine element having have some certain technological methods and functions. In this work, CNC part programming and processing methods are applied to the manufacturing of active surface of a cylindirical plough on CNC loom was investigeted.

  3. Space Industrialization: Manufacturing and Construction Activities. Part 2.

    Science.gov (United States)

    Story, Charles H.

    1983-01-01

    Discusses how space industrialization will provide direct benefits for our nation and will transfer technology to the many diverse areas of human activity. Examples are the development of the Space Shuttle, the Space Studies Institute, and the LS Society (advocates for colonizing space). (NRJ)

  4. Helping Children Cope with Fears and Stress. Part I: Discussion and Activities. Part II: Facilitator's Guide.

    Science.gov (United States)

    Robinson, Edward H.; And Others

    How fears, phobias, anxiety and stress develop in elementary school students and how these students can be assisted in coping with fears and stress are discussed in this book. Part 1, "Discussion and Activities," contains six sections. Section 1 presents an overview of fears, and stress in children. Section 2 presents 12 fear-specific activities…

  5. Digital Aircraft Sheet Metal Part Manufacturing System and Its Key Technology

    Institute of Scientific and Technical Information of China (English)

    Wang; Junbiao; Liu; Chuang

    2007-01-01

    The architecture of digital sheet metal manufacturing system is proposed based on the classification of sheet metal manufacturing information.The essence of digital manufacturing is the definition,management and transfer of information,and the key technologies are brought forward and described.It is pointed out that knowledge-based manufacturing elements design is necessary to make digital technology efficient.The management of all kinds of sheet metal manufacturing element information is to build single source of manufacturing data.Multi-state model-based digital transfer and coordination method is designed to provide a foundation for digital manufacturing of aircraft sheet metal part.The application of digital sheet metal manufacturing is exemplified with an aircraft sheet metal part.The application result is compared to that of the traditional analog transfer technology.It is shown that the developed technology can improve part quality,shorten manufacturing time and lower manufacturing cost.

  6. The 'Technology - Activities of Daily Living Questionnaire': a version with a technology-related subscale

    Science.gov (United States)

    Muñoz-Neira, Carlos; López, Oscar L.; Riveros, Rodrigo; Nuñez-Huasaf, Javier; Flores, Patricia; Slachevsky, Andrea

    2016-01-01

    Background Information and communication technology (ICT) has become an increasingly important part of daily life. The ability to use technology is becoming essential for autonomous functioning in society. Current functional scales for patients with cognitive impairment do not evaluate the use of technology. The objective of this study was to develop and validate a new version of the Activities of Daily Living Questionnaire (ADLQ) that incorporates an ICT subscale. Method A new technology-based subscale was incorporated into the Spanish Version of the ADLQ (SV-ADLQ), entitled The Technology Version of the ADLQ (T-ADLQ). The T-ADLQ was administered to 63 caregivers of dementia patients, 21 proxies of mild cognitive impairment patients and 44 proxies of normal elderly subjects (mean age of the sample ± SD: 73.5 ± 8.30). We analysed the convergent validity, internal consistency, reliability cut-off point, sensitivity and specificity of the T-ADLQ. The results of the T-ADLQ were compared to the SV-ADLQ. Results The T-ADLQ showed significant correlations with the Mini-mental Test (MMSE), the Frontal Assesment Battery (FAB) as well as other measures of functional impairment and dementia severity (MMSE: r = −0.70; FAB: r = −0.65; Functional Assessment Questionnaire: r = 0.77; Instrumental Activities of Daily Living Scale: r = −0.75; Clinical Dementia Rating Scale: r = 0.72; p<0.001). The T-ADLQ showed a good reliability with a relatively high Cronbach’s alpha coefficient (Cronbach’s alpha = 0.861). When considering a functional impairment cut-off point greater than 29.25%, the sensitivity and specificity of the T-ADLQ were 82% and 90%, respectively. The area under the ROC curve (AUC) was 0.937 for the T-ADLQ and 0.932 for the original version of the test. Conclusions The T-ADLQ revealed adequate indicators of validity and reliability for the functional assessment of activities of daily living in dementia patients. However, the inclusion of technology items in

  7. NASA's Microgravity Technology Report, 1996: Summary of Activities

    Science.gov (United States)

    Kierk, Isabella

    1996-01-01

    This report covers technology development and technology transfer activities within the Microgravity Science Research Programs during FY 1996. It also describes the recent major tasks under the Advanced Technology Development (ATD) Program and identifies current technology requirements. This document is consistent with NASA,s Enteprise for the Human Exploration and development of Space (HEDS) Strategic Plan. This annual update reflects changes in the Microgravity Science Research Program's new technology activities and requirements. Appendix A. FY 1996 Advanced Technology Development. Program and Project Descriptions. Appendix B. Technology Development.

  8. Evaluating Colombian SMEs’ technological innovation: Part 1: conceptual basis, evaluation methodology and characterisation of innovative companies

    Directory of Open Access Journals (Sweden)

    Óscar Fernando Castellanos Domínguez

    2010-04-01

    Full Text Available Innovative processes currently constitute one of the most important alternatives for increasing organisations’ levels of competitiveness and productivity. The Colombian state (being conscious of this has generated mechanisms aimed at encouraging technological and innovative development activities in SMEs, as was the case with the Colombian Prize for Entrepreneurial Technological Innovation for SME (Innova 2006. The experience acquired through the technical evaluation of such prize was a valuable element for identifying Colombian MSMSC innovative characteristics and trends. The present article seeks to establish the current state of innovation in SMEs from expe- rience gained when evaluating and awarding the Innova prize; a frame of reference concerning innovation and design, the methodology used for evaluating the prize and some general statistics regarding the results obtained in 2006 are thus presented. A future publication will give the factors influencing innovation taking geographical regions, sectors and impact as reference. Such results revealed innovative initiatives in strategic sectors such as computer science and services, the leadership of cities such as Bogota and MedellIn and the need for producing clear guidelines for incorporating process and product design into being part of the innovative process.

  9. FSA future directions: FSA technology activities in FY86

    Science.gov (United States)

    Leipold, M. H.

    1985-01-01

    The silicon material, advanced silicon sheet, device research, and process research activities are explained. There will be no new initiatives. Many activities are targeted for completion and the emphasis will then be on technology transfer. Industrial development of the fluidized-bed reactor (FBR) deposition technology is proceeding. Technology transfer and industry funding of sheet development are continuing.

  10. The Processing of Parts with Group Technology in Individual CNC Machining Center

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    This paper proposes a new machining method for part s using group technology suitable for workshop condition in China. The method divi des the parts of each product into similar kinds according to their features, an d installs each kind of parts on different working platforms. The working platfo rm, as a unit, is designed to be flexible and is interchangeable. It can be hung and fitted to the CNC working table. By changing the platforms in turn, nearly all the parts of one product can be processed with o...

  11. [Hi-tech trends in future dentistry--Part B: diagnostic and therapeutic technologies].

    Science.gov (United States)

    Feuerstein, O; Houri-Haddad, Y; Lipovetsky, M; Perez-Davidi, M; Weiss, E I

    2006-10-01

    The technology advance and the growing amount of knowledge had a great impact on dental practice for the last decade. The prominent change began with digital revolution presenting new computed technologies and accessible communicational means for sharing literal and imaging information. Following toward the coming biotechnological revolution, dentistry will be even further changed. This article presents dental innovations of Israeli Hi-Tech companies, sorted into two groups. Part A of the article discussed the area of computed imaging systems for educational purposes, diagnostic and treatment. While part B presents other diagnostic or therapeutic technologies. However, because some of the described technologies are still on their R&D (Research and Development) phases, they are not commercialized yet in the market.

  12. Smashing Tissue Extraction and HPLC Determination of Active Saponins from Different Parts of Panax notoginseng

    Institute of Scientific and Technical Information of China (English)

    SHI Sheng-ming; LIU Yan-ze; TAI Wen; CHEN Chang-qing; ZHAO Yu-qing

    2012-01-01

    Objective To optimize the extraction technology used for extracting active saponins from the roots,fibrous roots,basal part of stems,root verrucae,fruits,flowers,stems,and leaves of Panax notoginseng based on the contents of ginsengsides Rg1,Rb1,and notoginsengside R1 as evaluation indexes.Methods Different parts of P.notoginseng were extracted by smashing tissue extraction(STE),ultrasound extraction,and reflux extraction.The contents of ginsengsides Rg1,Rb1,and notoginsengside R1 in 24 kinds of extracts were determined by HPLC-UV.Hypersil C18 column(200 mm × 4.6 mm,5 μm)and acetonitrile-warter(20:80 for 30 min→45:55 for 18 min→70:30 for 2 min→80:20 for 10 min→100:0)were used;UV detector was set at 203 nm;The flow rate was set at 1.0 mL/min.Results STE was the most efficient technology with the highest yield of active saponins among the three tested extraction technologies.Conclusion STE is a fast,effective,and economical method to extract the active saponins from different parts of P.notoginseng.It could significantly shorten the extraction time and simplify the determination of the pre-processing work on identifying P.notoginseng.Such quick and effective extraction provides a powerful tool for analyzing P.notoginseng in the future.

  13. Microgrids in Active Network Management-Part I

    DEFF Research Database (Denmark)

    Palizban, Omid; Kauhaniemia, Kimmo; Guerrero, Josep M.

    2014-01-01

    The microgrid concept has been closely investigated and implemented by numerous experts worldwide. The first part of this paper describes the principles of microgrid design, considering the operational concepts and requirements arising from participation in active network management. Over the las......, energy storage systems, and market participation in both island and grid-connection operation. Finally, control techniques and the principles of energy-storage systems are summarized in a comprehensive flowchart.......The microgrid concept has been closely investigated and implemented by numerous experts worldwide. The first part of this paper describes the principles of microgrid design, considering the operational concepts and requirements arising from participation in active network management. Over the last...

  14. Determinants of Foreign Technological Activity in German Regions

    DEFF Research Database (Denmark)

    Dettmann, Eva; Lacasa, Iciar Dominguez; Günther, Jutta;

    This paper analyses the determinants of spatial distribution of foreign technological activity across 96 German regions (1996-2009). We identify foreign inventive activity by applying the ‘cross-border-ownership concept’ to transnational patent applications. The descriptive analysis shows...... that foreign technological activity more than doubled during the observation period with persistent spatial heterogeneity in Germany. Using a pooled count data model, we estimate the effect of various sources for externalities on the extent of foreign technological activity across regions. Our results show...... that foreign technological activity is attracted by technologically specialised sectors of regions. In contrast to existing findings this effect applies both to foreign as well as domestic sources of specialisation. We show that the relation between specialization and foreign technological activity is non...

  15. Antioxidant and antibacterial activity of different parts of Leucas aspera

    Institute of Scientific and Technical Information of China (English)

    Ai Lan Chew; Jeyanthi James Antony Jessica; Sreenivasan Sasidharan

    2012-01-01

    Objective: To evaluate antioxidant, antimicrobial and cytotoxic activity of different parts (root, flower, leaf and stem) of Leucas aspera (L. aspera) (Labiatae). Methods: Different parts of L. aspera were extracted with 80% (v/v) methanol. The methanol extracts were subjected to antioxidant, antimicrobial and brine shrimp lethality assay. Results: All the extracts showed moderate to potent antioxidant activity, among which the root extract demonstrated the strongest antioxidant activity with the IC50 value of 6.552 μg/mL. Methanol extract of root possessed antioxidant activity near the range of vitamin E and thus could be a potential rich source of natural antioxidant. In case of antimicrobial screening, crude extracts of root, flower, leaf and stem showed notable antibacterial activity against tested microorganisms. The root extract showed the highest mean zone of inhibition ranging from 9.0-11.0 mm against tested microorganisms, at a concentration of 100 mg/mL. In the brine shrimp lethality bioassay, it was evident that the methanol root extract did not show significant toxicity. The LC50 value for 12 h and 24 h observation was 2.890 mg/mL and 1.417 mg/mL, respectively. Conclusions: The present finding suggests that the methanol root extract of L. aspera could be developed as pharmaceutical products.

  16. New technologies in health care. Part 1: A moral and ethical predicament.

    Science.gov (United States)

    Lebuis, Ariane; Lai, Beverly; Emami, Elham; Feine, Jocelyne S

    2008-09-01

    With the rapid evolution of technology and the development and marketing of new procedures in dentistry, dentists have difficulty keeping pace with all of this new technology and information. How do these clinicians know whether a new product, technique or technological advance is good and should be recommended? At what point do they have an obligation to inform their patients about new procedures supported by research? This first report of a 2-part series investigates the ethical aspects of these issues and describes some of the professional ethical dilemmas and obligations involved when new therapies are offered to the public.

  17. RFID Demystified: Part 1. The technology, Benefits and Barriers to Implementation

    OpenAIRE

    Wilding, Richard D.; Delgardo, Tiago

    2004-01-01

    Radio Frequency Identification (RFID) has by some commentators been heralded as a technology that will have as big an impact on supply chain operations as the advent of computer based planning systems in the early 1970’s. Whereas others say it is just yet another technology fad that in a couple of years will have gone away. We are continually reading conflicting messages about RFID, this is partly due to the term being miss used in some quarters and also because as with all new technologies i...

  18. Oak Ridge National Laboratory Technology Logic Diagram. Volume 1, Technology Evaluation: Part C, Waste Management

    Energy Technology Data Exchange (ETDEWEB)

    1993-09-01

    This report documents activities at ORNL including waste management and remedial action at the site; also waste processing and disposal; robotics and automation of the laboratory; and regulatory compliance

  19. Active Shop Scheduling Of Production Process Based On RFID Technology

    Directory of Open Access Journals (Sweden)

    Cuihua Chao

    2016-01-01

    Full Text Available In industry 4.0 environment, intelligent technology is almost applied to all parts of the manufacturing process, such as process design, job shop scheduling, etc.. This paper presents an efficient approach to job shop scheduling actively by using RFID to collect real-time manufacturing data. Identified the workpiece by RFID which needs to be machined, it can “ask for” the resource actively for the following process. With these active asking-for strategy, a double genetically encoded improved genetic algorithm is proposed for achieving active job shop scheduling solution during the actual manufacturing process. A case was used to evaluate its effectiveness. Meanwhile, , it can effectively and actively carry out job shop scheduling and has much better convergence effect comparing with basic genetic algorithm. And the job shop scheduler in management center can use the proposed algorithm to get the satisfied scheduling result timely by reducing waiting time and making begin time earlier during transmission between manufacturing process, which makes the scheduling result feasible and accurate.

  20. Teachers' Purposeful Design of Effective Technology Learning Activities

    Science.gov (United States)

    Morgan, John Andrew Kerlin

    2014-01-01

    The goal of this study was to explore how exemplary teachers design learning activities that incorporate the use of technology. Teachers at three schools in a school district in Southern California were solicited for a survey regarding their use of technology in the classroom. Based on the surveys, high and low technology implementers were…

  1. Phytochemistry and antioxidant activity of Lallemantia iberica aerial parts

    Directory of Open Access Journals (Sweden)

    N. Khosravi Dehaghi

    2016-06-01

    Full Text Available Background and objectives:Lallemantia iberica (Lamiaceae is a medicinal plant distributed in different parts of Iran. This research, has evaluated the phytochemical constituents and antioxidant activity of the aerial parts of the plant. Methods: Different chromatographic methods such as column chromatographies using Silica gel (normal and reversed phases, Sephadex LH-20 and HPLC were used for isolation of the compounds from the ethyl acetate and methanol extract of L. iberica aerial parts. The structures of the isolated compounds were elucidated using 1H-NMR, 13C-NMR and EI-MS. Antioxidant activity of the extracts were also evaluated in DPPH and FRAP tests. Results: Two sterols,β-sitosterol acetate (1, β-sitosterol (2, one triterpenoic acid,ursolic acid (3, one polyphenol, rosmarinic acid (4 and six flavonoides,Luteolin-7-O-glucoside (5, 4'-methoxy-luteolin-7-O-glucoside (6, apigenin-7-O-glucoside (7, Luteolin (8,  diosmetin (9, apigenin (10 were isolated and identified from the ethyl acetate and methanol extracts. The antioxidant activity of the ethyl acetate (IC50 189.95±2.8 μg/mL and the methanol extracts (IC50 140±1.2 μg/mL were compared to the standard antioxidant, BHA (IC50 100±1.6 μg/mL in DPPH method. The reducing power of the ethyl acetate (300.28 μmol Eq FeSO4.7H2O/mg DW, the methanol extract (553.14 μmol Eq FeSO4.7H2O/mg DW and BHA (558.36 μmol Eq FeSO4.7H2O/mg of standard were elucidated in FRAP assay. Conclusion: The results introduce L. iberica as a medicinal plant with valuable constituents which are responsible of different pharmacological activities.

  2. Practices of Technology Parks Supporting Innovative Activities: Evidence from Poland

    Directory of Open Access Journals (Sweden)

    Anna Wójcik-Karpacz

    2015-12-01

    Full Text Available The aim of the paper is to reveal the role of technology parks (TP in the creation of new businesses and the expansion of existing ones. This issue is part of a study aimed at finding an answer to the question of whether there is a link between the creation of new businesses and the development of existing ones, and regional environment factors. The analysis is carried out through the identification of activity of TPS functioning in Poland. The results of the study may also be the starting point for the diagnosis on behaviours of TPS as environmental factors in a specific region and an indication of the desired directions of its changes. The subject undertaken by us draws attention to the fact that the management of existing competences and creating new ones could allow TPS to compete outside of their current arenas of competition.

  3. Future Technology Workshop: A Collaborative Method for the Design of New Learning Technologies and Activities

    Science.gov (United States)

    Vavoula, Giasemi N.; Sharples, Mike

    2007-01-01

    We describe the future technology workshop (FTW), a method whereby people with everyday knowledge or experience in a specific area of technology use (such as using digital cameras) envision and design the interactions between current and future technology and activity. Through a series of structured workshop sessions, participants collaborate to…

  4. Round table part 4: Identification of the key technologies and collaboration for Food production and preparation

    Science.gov (United States)

    Lasseur, Christophe; Tikhomirov, Alexander A.; Wheeler, Raymond

    2016-07-01

    Although the two first metabolic needs are based on simple molecule (i.e. oxygen and water), the third metabolic needs considered a tremendously large number and diversity of molecules: food. Today, physical chemical technologies do not allow to synthetize all the spectrum of molecules and biological processes have to be considered. Moreover, the raw material products by plants or by microorganisms are generally not directly edible or palatable and would need either transformation, assembly and/or storage. In other words the challenges of the food cannot be reduced to the plant production but need to include as well the complete chain, from the production conditions and the biomass quality up to the final edible products and its acceptance. In other words all the steps have to be considered and characterize. Today these challenges requires a high level of plants characterization. This round table part 4 would allow the participants to present some of their results and express some domain of activities. Re4serach for collaboration will be identified.

  5. NASA's Spaceliner Investment Area Technology Activities

    Science.gov (United States)

    Hueter, Uwe; Lyles, Garry M. (Technical Monitor)

    2001-01-01

    NASA's has established long term goals for access-to-space. The third generation launch systems are to be fully reusable and operational around 2025. The goals for the third generation launch system are to significantly reduce cost and improve safety over current conditions. The Advanced Space Transportation Program Office (ASTP) at the NASA's Marshall Space Flight Center in Huntsville, AL has the agency lead to develop space transportation technologies. Within ASTP, under the Spaceliner Investment Area, third generation technologies are being pursued in the areas of propulsion, airframes, integrated vehicle health management (IVHM), avionics, power, operations, and range. The ASTP program will mature these technologies through both ground and flight system testing. The Spaceliner Investment Area plans to mature vehicle technologies to reduce the implementation risks for future commercially developed reusable launch vehicles (RLV). The plan is to substantially increase the design and operating margins of the third generation RLV (the Space Shuttle is the first generation) by incorporating advanced technologies in propulsion, materials, structures, thermal protection systems, avionics, and power. Advancements in design tools and better characterization of the operational environment will allow improvements in design margins. Improvements in operational efficiencies will be provided through use of advanced integrated health management, operations, and range technologies. The increase in margins will allow components to operate well below their design points resulting in improved component operating life, reliability, and safety which in turn reduces both maintenance and refurbishment costs. These technologies have the potential of enabling horizontal takeoff by reducing the takeoff weight and achieving the goal of airline-like operation. These factors in conjunction with increased flight rates from an expanding market will result in significant improvements in safety

  6. E-Collaboration Technologies in Teaching/Learning Activity

    Science.gov (United States)

    Zascerinska, Jelena; Ahrens, Andreas

    2009-01-01

    A proper use of e-collaboration technologies in the teaching/learning process is provided by varied cooperative networks, which penetrate teachers' and students' activity more thoroughly with the availability of broadband services. However, the successful use of e-collaboration technologies in teaching/learning activity within a multicultural…

  7. DOE underground storage tank waste remediation chemical processing hazards. Part I: Technology dictionary

    Energy Technology Data Exchange (ETDEWEB)

    DeMuth, S.F.

    1996-10-01

    This document has been prepared to aid in the development of Regulating guidelines for the Privatization of Hanford underground storage tank waste remediation. The document has been prepared it two parts to facilitate their preparation. Part II is the primary focus of this effort in that it describes the technical basis for established and potential chemical processing hazards associated with Underground Storage Tank (UST) nuclear waste remediation across the DOE complex. The established hazards involve those at Sites for which Safety Analysis Reviews (SARs) have already been prepared. Potential hazards are those involving technologies currently being developed for future applications. Part I of this document outlines the scope of Part II by briefly describing the established and potential technologies. In addition to providing the scope, Part I can be used as a technical introduction and bibliography for Regulatory personnel new to the UST waste remediation, and in particular Privatization effort. Part II of this document is not intended to provide examples of a SAR Hazards Analysis, but rather provide an intelligence gathering source for Regulatory personnel who must eventually evaluate the Privatization SAR Hazards Analysis.

  8. Shaping old age: Innovation partnerships, senior centres and billiards tables as active ageing technologies

    DEFF Research Database (Denmark)

    Lassen, Aske Juul

    2017-01-01

    During the past decade active ageing has been positioned as a solution to the problem of global ageing. While the scientific, economic and even moral arguments for pursuing a more active old age has been many, the integration of active ageing in everyday practices face challenges. This chapter...... explores the ways that active ageing policies become part of everyday practices, by proposing the concept of active ageing technologies. Active ageing technologies are material and immaterial condensations of knowledge that form old age in specific ways. Through the cases of an innovation partnership, two...... activity centres and a billiards table, the author explores how active ageing policies are transformed in practice. The chapter draws on an ethnographic study of active ageing conducted at the two activity centres, as well as the author’s participation in the innovation partnership. The author uses...

  9. Parent participation plays an important part in promoting physical activity

    Directory of Open Access Journals (Sweden)

    Anna-Karin Lindqvist

    2015-08-01

    Full Text Available Although physical activity (PA is an important and modifiable determinant of health, in Sweden only 15% of boys and 10% of girls aged 15 years old achieve the recommended levels of PA 7 days per week. Adolescents’ PA levels are associated with social influence exerted by parents, friends, and teachers. The purpose of this study was to describe parents’ experiences of being a part of their adolescents’ empowerment-inspired PA intervention. A qualitative interview study was performed at a school in the northern part of Sweden. A total of 10 parents were interviewed, and the collected data were analyzed with qualitative content analysis. Three subthemes were combined into one main theme, demonstrating that parents are one important part of a successful PA intervention. The life of an adolescent has many options and demands that make it difficult to prioritize PA. Although parents felt that they were important in supporting their adolescent, a successful PA intervention must have multiple components. Moreover, the parents noted that the intervention had a positive effect upon not only their adolescents’, but also their own PA. Interventions aimed at promoting PA among adolescents should include measures to stimulate parent participation, have an empowerment approach, and preferably be school-based.

  10. NASA's Spaceliner 100 Investment Area Technology Activities

    Science.gov (United States)

    Hueter, Uwe; Lyles, Garry M. (Technical Monitor)

    2001-01-01

    NASA's has established long term goals for access-to-space. The third generation launch systems are to be fully reusable and operational around 2025. The goals for the third generation launch system are to reduce cost by a factor of 100 and improve safety by a factor of 10,000 over current conditions. The Advanced Space Transportation Program Office (ASTP) at the NASA's Marshall Space Flight Center in Huntsville, AL has the agency lead to develop space transportation technologies. Within ASTP, under the Spaceliner100 Investment Area, third generation technologies are being pursued in the areas of propulsion, airframes, integrated vehicle health management (IVHM), launch systems, and operations and range. The ASTP program will mature these technologies through ground system testing. Flight testing where required, will be advocated on a case by case basis.

  11. LDR structural technology activities at JPL

    Science.gov (United States)

    Wada, Ben

    1988-01-01

    The status of the Large Deployable Reflector (LDR) technology requirements and the availability of that technology in the next few years are summarized. The research efforts at JPL related to these technology needs are also discussed. LDR requires that a large and relatively stiff truss-type backup structure have a surface accurate to 100 microns in space (initial position with thermal distortions) and the dynamic characteristics predictable and/or measurable by on-orbit system identification for micron level motion. This motion may result from the excitation of the lower modes or from wave-type motions. It is also assumed that the LDR structure can be ground tested to validate its ability to meet mission requirements. No program manager will commit a structural design based solely on analysis, unless the analysis is backed by a validation test program.

  12. Evaluating Colombian SMEs’ technological innovation: Part 1: conceptual basis, evaluation methodology and characterisation of innovative companies

    OpenAIRE

    Óscar Fernando Castellanos Domínguez; Luz Marina Torres; Aida Mayerly Fúquene Montañez

    2010-01-01

    Innovative processes currently constitute one of the most important alternatives for increasing organisations’ levels of competitiveness and productivity. The Colombian state (being conscious of this) has generated mechanisms aimed at encouraging technological and innovative development activities in SMEs, as was the case with the Colombian Prize for Entrepreneurial Technological Innovation for SME (Innova) 2006. The experience acquired through the technical evaluation of such prize was a ...

  13. Hepatoprotective and nephroprotective activities of Juniperus sabina L. aerial parts

    Directory of Open Access Journals (Sweden)

    Maged S. Abdel-Kader

    2017-02-01

    Full Text Available Context: Previous studies indicated that Juniperus species exhibited promising hepatoprotective activity. Aims: To evaluate the hepatoprotective and nephroprotective activity of the total alcohol extract of the aerial parts of Juniperus sabina against carbon tetrachloride (CCl4 induced toxicity using male Wistar rats as experimental animals. Methods: Daily oral administration of two doses (200 and 400 mg/kg of the total extract of the aerial parts of J. sabina for seven days followed by one dose of CCl4 (1.25 mL/kg at day 6. Liver and kidney functions were monitored via measuring serum and tissue parameters as well as histopathological study. Normal rats, rats treated only with CCl4 and rats treated with CCl4 and silymarin were used as controls. Results: The higher dose showed 47, 50, 38, 17 and 42% decrease in the levels of AST, ALT, GGT, ALP, and bilirubin respectively. Animals received the total extract of J. sabina showed a significant dose-dependent recovery of the NP-SH contents, total proteins, and reduction the level of MDA in both liver and kidney tissues. Histopathological study revealed improvement in the architecture of hepatocytes and kidney cells. Conclusions: The hepatoprotective effect offered by J. sabina crude extract at the two used doses was found to be significant in all serum parameters. Histopathological study revealed moderate improvement in the architecture of the liver cells that add another indication of protection. Improvement of kidney function was less than liver function.

  14. NOMAGE4 activities 2011, Part II, Supercritical water loop

    DEFF Research Database (Denmark)

    Vierstraete, Pierre; Van Nieuwenhove, Rudi; Lauritzen, Bent

    The supercritical water reactor (SCWR) is one of the six different reactor technologies selected for research and development under the Generation IV program. Several countries have shown interest to this concept but up to now, there exist no in-pile facilities to perform the required material...... and fuel tests. Working on this direction, the Halden Reactor Project has started an activity in collaboration with Risoe-DTU (with Mr. Rudi Van Nieuwenhove as the project leader) to study the feasibility of a SCW loop in the Halden Reactor, which is a Heavy Boiling Water Reactor (HBWR). The ultimate goal...... of the project is to design a loop allowing material and fuel test studies at significant mass flow with in-core instrumentation and chemistry control possibilities. The present report focusses on the main heat exchanger required for such a loop in the Halden Reactor. The goal of this heat exchanger is to assure...

  15. Technology improvement of chromium on steel parts electrodeposition using complex command and control systems

    Science.gov (United States)

    Stănescu, A.; Alecusan, A. M.; Dimitescu, A.

    2016-08-01

    The paper aims to provide improved technological process of electrochemical deposition of chromium on steel for decorative parts for corrosion protection but also to improve mechanical properties. The proposed idea is perfectly suited to be grafted onto existing electrodeposition installations, but it can be applied successfully in the development of new such plants. Complex command and control systems are designed to operate in high aggressive environmental conditions specific to these types of installations. The theoretical part completes the experimental results obtained on a laboratory facility.

  16. A BIBLIOGRAPHY ON INFORMATION SCIENCE AND TECHNOLOGY FOR 1966. PART 2

    Science.gov (United States)

    The primary aim of the continuing bibliography is to assist the authors of the chapters in ’Annual Review of Information Science and Technology’ in discovering the existence or determining the identity of documents relevant to their topics. The style of entries also reflects the authors’ requirements. The ’Abbreviations and Index for Periodicals Cited’ is cumulative for parts I and II.

  17. Active flow control for a NACA-0012 Profile: Part II

    Science.gov (United States)

    Oualli, H.; Makadem, M.; Ouchene, H.; Ferfouri, A.; Bouabdallah, A.; Gad-El-Hak, M.

    2016-11-01

    Active flow control is applied to a NACA-0012 profile. The experiments are conducted in a wind tunnel. Using a high-resolution visible-light camera and tomography, flow visualizations are carried out. LES finite-volume 3D code is used to complement the physical experiments. The symmetric wing is clipped into two parts, and those parts extend and retract along the chord according to the same sinusoidal law we optimized last year for the same profile but clipped at an angle of 60 deg, instead of the original 90 deg. The Reynolds number range is extended to 500,000, thus covering the flying regimes of micro-UAVs, UAVs, as well as small aircraft. When the nascent cavity is open and the attack angle is 30 deg, the drag coefficient is increased by 1,300%, as compared to the uncontrolled case. However, when the cavity is covered and Re <=105 , a relatively small frequency, f <= 30 Hz, is required for the drag coefficient to drop to negative values. At the maximum Reynolds number, thrust is generated but only at much higher frequencies, 12 <= f <= 16 kHz.

  18. Microgrids in Active Network Management-Part II

    DEFF Research Database (Denmark)

    Palizban, Omid; Kauhaniemi, Kimmo; Guerrero, Josep M.

    2014-01-01

    , following planned or unplanned transitions to island mode, microgrids may develop instability. For this reason, the paper addresses the principles behind island-detection methods, black-start operation, fault management, and protection systems, along with a comprehensive review of power quality. Finally......The development of distribution networks for participation in active network management (ANM) and smart grids is introduced using the microgrid concept. In recent years, this issue has been researched and implemented by many experts. The second part of this paper describes those developed...... operational concepts of microgrids that have an impact on their participation in ANM and in the requirements for achieving targets. Power quality is the most challenging task in microgrids, especially when the system switches from normal parallel operation (grid-connection mode) to island operation. Indeed...

  19. Landslide Susceptibility Mapping Using Geospatial Technology in South Eastern Part of Nilgiri District, Tamilnadu, India

    Science.gov (United States)

    Thangasamy, N.; Varathan, R.

    2013-05-01

    Landslides are often destructive and periodically affect the Nilgiris district. Two method viz., Frequency ratio (FR) and Weights of evidence (WofE) were used to reclassify the sub-variables and the landslide susceptibility index (LSI) was calculated by weighted sum overlay analysis. The final LS Zonation map was prepared from the LSI and the area was classified into two zones. Validation of the LSM was the next step and was accomplished by excluding some landslide points in the GIS analyses and overlying the unused landslides points over the LSM. The LSMs prepared using the FR and WofE methods are reliable as more than 75% of the excluded slides fall in high and very high landslide susceptibility zones and the error of mismatch in the two maps is negligible.During the course of this study landslides devastated the Kethi, Coonoor, Barliyar and Kothagiri areas due to an extreme event with 374 to 1,171 mm rainfall received in these stations in just three days on 8th to 10th November, 2009. The rainfall event is unprecedented and such extreme rainfall has not occurred in the region since meteorological records are maintained. Over 100 landslides took place in the area of which 75 are major slides and more 43 people died and 200 houses were damaged. The event was documented and a data base containing the location, details of death, slide characteristics and photographs was prepared. Further, the probability of landslide occurrence may change over time due to changes in land use, unscientific massive developmental activities and establishing settlements without adopting proper safety measures. The study also highlights the need for maintenance of landslide database and installation of more rain gauge stations to update and improve the LSM so as to reduce the risk of landslide hazard faced by the Community. NaveenRaj.T INDIA LANDSLIDE SUSCEPTIBILITY MAPPING USING GEOSPATIAL TECHNOLOGY IN SOUTH EASTERN PART OF NILGIRI DISTRICT, TAMILNADU, INDIA.

  20. The Analysis of Activated Carbon Regeneration Technologies

    Institute of Scientific and Technical Information of China (English)

    姚芳

    2014-01-01

    A series of methods for activated carbon regeneration were briefly introduced.Such as thermal regeneration,chemical regeneration,biochemical regeneration,and newly supercritical fluid regeneration, electrochemical regeneration,light-catalyzed regeneration,and microwave radiation method,and the developing trend of activated carbon regeneration was predicted.

  1. Culturelogical senses of activity in anthropic technologies of higher education

    Directory of Open Access Journals (Sweden)

    Dmitriev S.V.

    2010-04-01

    Full Text Available Technology of the educational teaching motive actions is examined in a theory and practice of higher education. The role of modern educational technologies is rotined in professional preparation of students. «Humanism conversion» of educational technologies is offered. It is rotined that authentic sense of educational activity of man is finding by him itself (achievement of authenticness with itself. On the basis of it is creative realization in professional labour.

  2. Information Technology and Aesthetics: Passive and Active Dimensions

    Directory of Open Access Journals (Sweden)

    John D Haynes

    2007-09-01

    Full Text Available This paper is concerned with examining and recognizing aesthetics in an Information System (an organization incorporating both humans and information technology. Aesthetics emerge from the wholeness of things, not from specific parts or components. As such, aesthetics may naturally be considered in “systems”, and we propose that an effective manner of thinking of aesthetics is to think in terms of “themes”. Humans have an extraordinary capacity to capture events thematically. In other words, human beings have a natural sense of aesthetics. To examine aesthetics in an information systems context, we argue that one must consider not only aesthetics that may be perceived by the senses (a passive dimension, but also aesthetics that may be conceived in the mind (an active dimension. This paper draws the conclusion that the benefits of aesthetics in relation to the study of Information Systems, has characteristics similar to the nature and importance of ethics in IS. Also, the study of aesthetics in IS has greater implications than simply recognizing and appreciating beauty and art. The very human capacity for recognizing and appreciating beauty and art is also the same capacity for effective creativity and happiness: the active aesthetic dimension. It follows that if an information system encouraged and provided the enabling circumstances for the human capacity of thematic recognition (as found in the human appreciation of art and beauty it thereby also provides the ground and the necessary thematically recognizable stimulus for effective creative and visionary organizational management.

  3. Promoting Technology-Assisted Active Learning in Computer Science Education

    Science.gov (United States)

    Gao, Jinzhu; Hargis, Jace

    2010-01-01

    This paper describes specific active learning strategies for teaching computer science, integrating both instructional technologies and non-technology-based strategies shown to be effective in the literature. The theoretical learning components addressed include an intentional method to help students build metacognitive abilities, as well as…

  4. Analysis and correction of defects within parts fabricated using powder bed fusion technology

    Science.gov (United States)

    Mireles, Jorge; Ridwan, Shakerur; Morton, Philip A.; Hinojos, Alejandro; Wicker, Ryan B.

    2015-09-01

    Quality assurance is an important topic for additive manufacturing (AM) and often seen as a requirement for the transition and adoption of the technology toward fabrication of end use applications. As AM technologies are used for production, it is necessary to ensure high quality, repeatable, and reproducible components are manufactured. Various nondestructive examination techniques have been used to evaluate AM-fabricated parts to determine part quality post-fabrication (e.g. scanning and/or microstructural characterization). In situ monitoring methods have been developed for AM technologies to enable defect detection and have potential to be used for in situ monitoring and correction of fabrication anomalies (e.g. undesired temperature gradients and porosity). In this research, defects (e.g. pores) were seeded into parts fabricated using the powder bed fusion AM process, electron beam melting, and monitored using in situ infrared (IR) thermography. Results from layerwise thermography were compared with results obtained using computer tomography (CT) scanning techniques. Although the measured geometry of the seeded defects between IR thermography and CT was substantially different (area difference of ∼60%), the thermographs did provide a good indication of defects present within a fabricated part. Furthermore, defect correction methods were evaluated including post-processing methods such as hot isostatic pressing as well as in situ correction methods such as layer re-melting. Re-melting a porous layer successfully corrected defects and demonstrates a potential method for in situ defect correction if implemented in future systems equipped with automatic feedback control of powder bed fusion processes.

  5. Determinants of Foreign Technological Activity in German Regions

    DEFF Research Database (Denmark)

    Dettmann, Eva; Lacasa, Iciar Dominguez; Günther, Jutta

    This paper analyses the determinants of spatial distribution of foreign technological activity across 96 German regions (1996-2009). We identify foreign inventive activity by applying the ‘cross-border-ownership concept’ to transnational patent applications. The descriptive analysis shows......-linear and that it is influenced by sectoral heterogeneity. Externalities related to technological diversification attract foreign R&D only into ‘higher order’ regions....

  6. NOMAGE4 activities 2011. Part II, Supercritical water loop

    Energy Technology Data Exchange (ETDEWEB)

    Vierstraete, P. (Ecole Nationale Superieure des mines, Paris (France)); Van Nieuwenhove, R. (Institutt for Energiteknikk, OECD Halden Reactor Project (HRP), Kjeller (Norway)); Lauritzen, B. (Technical Univ. of Denmark, Risoe National Lab. for Sustainable Energy, Roskilde (Denmark))

    2012-01-15

    The supercritical water reactor (SCWR) is one of the six different reactor technologies selected for research and development under the Generation IV program. Several countries have shown interest to this concept but up to now, there exist no in-pile facilities to perform the required material and fuel tests. Working on this direction, the Halden Reactor Project has started an activity in collaboration with Risoe-DTU (with Mr. Rudi Van Nieuwenhove as the project leader) to study the feasibility of a SCW loop in the Halden Reactor, which is a Heavy Boiling Water Reactor (HBWR). The ultimate goal of the project is to design a loop allowing material and fuel test studies at significant mass flow with in-core instrumentation and chemistry control possibilities. The present report focusses on the main heat exchanger required for such a loop in the Halden Reactor. The goal of this heat exchanger is to assure a supercritical flow state inside the test section (the core side) and a subcritical flow state inside the pump section. The objective is to design the heat exchanger in order to optimize the efficiency of the heat transfer and to respect several requirements as the room available inside the reactor hall, the maximal total pressure drop allowed and so on. (Author)

  7. NOMAGE4 activities 2011. Part II, Supercritical water loop

    Energy Technology Data Exchange (ETDEWEB)

    Vierstraete, P. (Ecole Nationale Superieure des mines, Paris (France)); Van Nieuwenhove, R. (Institutt for Energiteknikk, OECD Halden Reactor Project (HRP), Kjeller (Norway)); Lauritzen, B. (Technical Univ. of Denmark, Risoe National Lab. for Sustainable Energy, Roskilde (Denmark))

    2012-01-15

    The supercritical water reactor (SCWR) is one of the six different reactor technologies selected for research and development under the Generation IV program. Several countries have shown interest to this concept but up to now, there exist no in-pile facilities to perform the required material and fuel tests. Working on this direction, the Halden Reactor Project has started an activity in collaboration with Risoe-DTU (with Mr. Rudi Van Nieuwenhove as the project leader) to study the feasibility of a SCW loop in the Halden Reactor, which is a Heavy Boiling Water Reactor (HBWR). The ultimate goal of the project is to design a loop allowing material and fuel test studies at significant mass flow with in-core instrumentation and chemistry control possibilities. The present report focusses on the main heat exchanger required for such a loop in the Halden Reactor. The goal of this heat exchanger is to assure a supercritical flow state inside the test section (the core side) and a subcritical flow state inside the pump section. The objective is to design the heat exchanger in order to optimize the efficiency of the heat transfer and to respect several requirements as the room available inside the reactor hall, the maximal total pressure drop allowed and so on. (Author)

  8. Influence of injector technology on injection and combustion development - Part 1: Hydraulic characterization

    Energy Technology Data Exchange (ETDEWEB)

    Payri, R.; Salvador, F.J.; Gimeno, J.; Morena, J. de la [CMT-Motores Termicos, Universidad Politecnica de Valencia, Camino de Vera s/n, E-46022 (Spain)

    2011-04-15

    An experimental study of two real multi-hole Diesel injectors is performed under current DI Diesel engine operating conditions. The aim of the investigation is to study the influence of injector technology on the flow at the nozzle exit and to analyse its effect on the spray in evaporative conditions and combustion development. The injectors used are two of the most common technologies used nowadays: solenoid and piezoelectric. The nozzles for both injectors are very similar since the objective of the work is the understanding of the influence of the injector technology on spray characteristics for a given nozzle geometry. In the first part of the study, experimental measurements of hydraulic characterization have been analyzed for both systems. Analysis of spray behaviour in evaporative conditions and combustion development will be carried out in the second part of the work. Important differences between both injectors have been observed, especially in their transient opening and closing of the needle, leading to a more efficient air-fuel mixing and combustion processes for the piezoelectric actuated injector. (author)

  9. NASA Electronic Parts and Packaging (NEPP) Program - Radiation Activities

    Science.gov (United States)

    LaBel, Kenneth A.; Sampson, Michael J.

    2008-01-01

    The NEPP mission is to provide guidance to NASA for the selection and application of microelectronics technologies, to improve understanding of the risks related to the use of these technologies in the space environment and to ensure that appropriate research is performed to meet NASA mission assurance needs.

  10. Optimization of the Extraction Technology and Antioxidant Activity Study in vitro of Total Flavones from Different Parts of Alpinia galangal%大高良姜不同部位总黄酮的提取工艺优化及体外抗氧化活性研究

    Institute of Scientific and Technical Information of China (English)

    刘源; 唐斌; 张孝琴; 杨刚

    2016-01-01

    OBJECTIVE:To optimize the extraction technology of total flavonoids from the root,stem and leaves of Alpinia galangal and compare the antioxidant activities of the flavonoids in vitro. METHODS:Taking into account the four factors,such as the ratio of solid to liquid,the volume fraction of ethanol,the temperature of enzymatic hydrolysis and the time of ultrasonic,us-ing the extraction rate of total flavonoids as index,with the method of ultrasonic assisted,the extraction technology of total flavo-noids from A. galangal was optimized by Box-Behnken response surface test on the basis of single factor experiment. The antioxi-dant activity tests in vitro of different concentrations of total flavonoids (0.1-1.0 mg/ml) from different parts of A. galangal were conducted,including DPPH free radical clearance test,O2- free radical clearance test,protective test of vegetable and animal fat [using vitamin C(VC)as control]. RESULTS:The optimal extraction technology as follows as the ratio of solid to liquid was 1∶23.8;the volume fraction of ethanol was 60%;water bath temperature was 80 ℃;ultrasonic time was 33.5 min. Under this condi-tion,the extraction rates of total flavonoids from the root,stem and leaves of A. galangal were 53.5,52.7,52.5 mg/g. The rates of their relative error from predicted value were all no more than 2.48%. When the mass concentration was 0.5 mg/ml,the antioxidant capacity of total flavonoids from different parts of A. galangal to DPPH free radicals was as follows as leaves (94.3%)>root (93.6%)>stem(90.8%);the antioxidant capacity of VC was 96.4%. When the mass concentration was 1.0 mg/ml,the antioxi-dant capacity to O2- free radicals was as follows as root(63.7%)>stem(60.2%)>leaves(42.9%);the antioxidant capacity of VC was 94.7%. When the mass concentration was 0.4 mg/ml,the protective rate to vegetable fat was as follows as leaves (39.7%)>stem(30.6%)>root(28.3%);the protective rate to animal fat was as follows as leaves(40.6%)>stem(30.2%)>root(29

  11. Cancer modelling in the NGS era - Part I: Emerging technology and initial modelling.

    Science.gov (United States)

    Rovigatti, Ugo

    2015-11-01

    It is today indisputable that great progresses have been made in our molecular understanding of cancer cells, but an effective implementation of such knowledge into dramatic cancer-cures is still belated and yet desperately needed. This review gives a snapshot at where we stand today in this search for cancer understanding and definitive treatments, how far we have progressed and what are the major obstacles we will have to overcome both technologically and for disease modelling. In the first part, promising 3rd/4th Generation Sequencing Technologies will be summarized (particularly IonTorrent and OxfordNanopore technologies). Cancer modelling will be then reviewed from its origin in XIX Century Germany to today's NGS applications for cancer understanding and therapeutic interventions. Developments after Molecular Biology revolution (1953) are discussed as successions of three phases. The first, PH1, labelled "Clonal Outgrowth" (from 1960s to mid 1980s) was characterized by discoveries in cytogenetics (Nowell, Rowley) and viral oncology (Dulbecco, Bishop, Varmus), which demonstrated clonality. Treatments were consequently dominated by a "cytotoxic eradication" strategy with chemotherapeutic agents. In PH2, (from the mid 1980s to our days) the description of cancer as "Gene Networks" led to targeted-gene-therapies (TGTs). TGTs are the focus of Section 3: in view of their apparent failing (Ephemeral Therapies), alternative strategies will be discussed in review part II (particularly cancer immunotherapy, CIT). Additional Pitfalls impinge on the concepts of tumour heterogeneity (inter/intra; ITH). The described pitfalls set the basis for a new phase, PH3, which is called "NGS Era" and will be also discussed with ten emerging cancer models in the Review 2nd part.

  12. Round table part 5 : Identification of the key technologies and collaboration for waste management and recycling

    Science.gov (United States)

    Lasseur, Christophe; Tikhomirov, Alexander A.; Wheeler, Raymond

    2016-07-01

    Any manned missions will produce solid waste with or without on board food production. Of course in case of high food production, the percentage of waste of plant origin will be much higher and may pass the 80 %. Consequently the ultimate objective of a closed loop system is not achievable without an efficient waste r4cycling system. Over the years, a large panel of investigations of technologies have been performed form microbial degradation to wet oxidation. These part 5 is aiming to be a platform of discussion on the current world wide investigations related to solid waste treatment and to allow synergies and collaborations.

  13. INFLUENCE OF PROCESS PARAMETERS ON DIMENSIONAL ACCURACY OF PARTS MANUFACTURED USING FUSED DEPOSITION MODELLING TECHNOLOGY

    Directory of Open Access Journals (Sweden)

    Filip Górski

    2013-09-01

    Full Text Available The paper presents the results of experimental study – part of research of additive technology using thermoplastics as a build material, namely Fused Deposition Modelling (FDM. Aim of the study was to identify the relation between basic parameter of the FDM process – model orientation during manufacturing – and a dimensional accuracy and repeatability of obtained products. A set of samples was prepared – they were manufactured with variable process parameters and they were measured using 3D scanner. Significant differences in accuracy of products of the same geometry, but manufactured with different set of process parameters were observed.

  14. Solid dispersions in pharmaceutical technology. Part I. Classification and methods to obtain solid dispersions.

    Science.gov (United States)

    Karolewicz, Bozena; Górniak, Agata; Probst, Sandra; Owczarek, Artur; Pluta, Janusz; Zurawska-Płaksej, Ewa

    2012-01-01

    There are many methods to increase solubility of a substance. These include, inter alia, preparation of solid dispersions, i.e. eutectic mixtures, solid solutions, glassy solutions and suspensions. When compared to the individual constituents prior to dispersion formation solid dispersion components are better soluble in water. Therefore, solid solutions became one of the most promising ways to modify solubility, ensuring improved bioavailability and consequently therapeutic efficacy of a substance. In this part of the publication solid dispersions were classified and described in regard to their properties and preparation methods, i.e. melting method, melt evaporation and melt extrusion methods, lyophilisation technique, melt agglomeration process as well as SCF technology and electrospinning.

  15. Active, Non-Intrusive Inspection Technologies for Homeland Defense

    Energy Technology Data Exchange (ETDEWEB)

    James L. Jones

    2003-06-01

    Active, non-intrusive inspection or interrogation technologies have been used for 100 years - with the primary focus being radiographic imaging. During the last 50 years, various active interrogation systems have been investigated and most have revealed many unique and interesting capabilities and advantages that have already benefited the general public. Unfortunately, except for medical and specific industrial applications, these unique capabilities have not been widely adopted, largely due to the complexity of the technology, the overconfident reliance on passive detection systems to handle most challenges, and the unrealistic public concerns regarding radiation safety issues for a given active inspection deployment. The unique homeland security challenges facing the United States today are inviting more "out-of-the-box" solutions and are demanding the effective technological solutions that only active interrogation systems can provide. While revolutionary new solutions are always desired, these technology advancements are rare, and when found, usually take a long time to fully understand and implement for a given application. What's becoming more evident is that focusing on under-developed, but well-understood, active inspection technologies can provide many of the needed "out-of-the-box" solutions. This paper presents a brief historical overview of active interrogation. It identifies some of the major homeland defense challenges being confronted and the commercial and research technologies presently available and being pursued. Finally, the paper addresses the role of the Idaho National Engineering and Environmental Laboratory and its partner, the Idaho Accelerator Center at Idaho State University, in promoting and developing active inspection technologies for homeland defense.

  16. Volatile compounds and biological activities of aerial parts of ...

    African Journals Online (AJOL)

    Plant Physiology, Faculty of Biology Science, University of Science and Technology Houari Boumedienne (USTHB), Algiers,. Algeria ... preservative and flavorant in processed foods. .... Identification of the oil components was based on.

  17. Screening on the Pharmacodynemic Active Parts of Protecting Liver of Peristrope japonica (thunb.)Bremek

    Institute of Scientific and Technical Information of China (English)

    杨希雄; 皮慧芳; 张国欣; 庞雪冰; 吴继洲

    2004-01-01

    The pharmacodynamic active parts of protecting liver of Peristrope japonica (thunb.)Bremek were identified. Rat acute liver injury model was induced by D-galactosamine (D-GlaN).The active parts were identified on the whole extraction and 4 fractions. The results showed that the pharmacodynamic active parts of Peristrope japonica were the n-BuOH fraction.

  18. Active magnetic regenerator refrigeration with rotary multi-bed technology

    DEFF Research Database (Denmark)

    Eriksen, Dan

    Magnetic refrigeration is an emerging cooling technology with potential ad- vantages over conventional vapor compression, the most important being higher efficiency. This thesis presents experimental and theoretical research into the possibilities of realizing this potential with actual active...... with a thermal storage is introduced and demonstrated experimentally. Furthermore, a novel shunt valve technology, which was developed as a spin-off from the magnetic refrigeration research, is presented....

  19. State-of-the-art human gene therapy: part I. Gene delivery technologies.

    Science.gov (United States)

    Wang, Dan; Gao, Guangping

    2014-01-01

    Safe and effective gene delivery is a prerequisite for successful gene therapy. In the early age of human gene therapy, setbacks due to problematic gene delivery vehicles plagued the exciting therapeutic outcome. However, gene delivery technologies rapidly evolved ever since. With the advancement of gene delivery techniques, gene therapy clinical trials surged during the past decade. As the first gene therapy product (Glybera) has obtained regulatory approval and reached clinic, human gene therapy finally realized the promise that genes can be medicines. The diverse gene delivery techniques available today have laid the foundation for gene therapy applications in treating a wide range of human diseases. Some of the most urgent unmet medical needs, such as cancer and pandemic infectious diseases, have been tackled by gene therapy strategies with promising results. Furthermore, combining gene transfer with other breakthroughs in biomedical research and novel biotechnologies opened new avenues for gene therapy. Such innovative therapeutic strategies are unthinkable until now, and are expected to be revolutionary. In part I of this review, we introduced recent development of non-viral and viral gene delivery technology platforms. As cell-based gene therapy blossomed, we also summarized the diverse types of cells and vectors employed in ex vivo gene transfer. Finally, challenges in current gene delivery technologies for human use were discussed.

  20. Disaster Management: AN Integral Part of Science & Technology System and Land Administration-Management System

    Science.gov (United States)

    Ghawana, T.; Zlatanova, S.

    2016-06-01

    Disaster management is a multidisciplinary field, which requires a general coordination approach as well as specialist approaches. Science and Technology system of a country allows to create policies and execution of technical inputs required which provide services for the specific types of disasters management. Land administration and management agencies, as the administrative and management bodies, focus more on the coordination of designated tasks to various agencies responsible for their dedicated roles. They get help from Scientific and technical inputs & policies which require to be implemented in a professional manner. The paper provides an example of such integration from India where these two systems complement each other with their dedicated services. Delhi, the Capital of India, has such a disaster management system which has lot of technical departments of government which are mandated to provide their services as Emergency Service Functionaries. Thus, it is shown that disaster management is a job which is an integral part of Science & Technology system of a country while being implemented primarily with the help of land administration and management agencies. It is required that new policies or mandates for the Science and technology organizations of government should give a primary space to disaster management

  1. An Activity Systems Theory Approach to Agent Technology

    OpenAIRE

    Zhang, Peng; Bai, Guohua

    2005-01-01

    In the last decade, Activity Theory has been discussed a lot in Human-Computer Interaction (HCI) and Computer Supported Cooperative Work (CSCW). Activity Theory was used both theoretically as an analytical method and practically as a development framework for Information Systems. Meanwhile, there is a new trench from Artificial Intelligence. Artificial Intelligence researchers find that the fruit from Activity Theory study may contribute, especially to Agent Technology, with socio-psychologic...

  2. RESOURCE-SAVING TECHNOLOGY FOR HIGH-SPEED HOT EXTRUSION OF BIMETALLIC ROD PARTS

    Directory of Open Access Journals (Sweden)

    I. V. Kachanov

    2016-01-01

    Full Text Available Processes of high-speed shaping changes and especially high-speed hot extrusion create efficient conditions for treatment of weakly plastic and poorly deformable materials which are widely used in tool making facilities. Due to the fact that high-speed stamping provides accurate billets with increased mechanical properties, it can be used as a technological process for manufacturing rod parts of die tooling operating under conditions of increased loads and wear. The purpose of the given paper is to carry out experimental investigations on the possibility to obtain a bimetallic rod tool where structural steel is considered as a basis of the tool and a working cavity is made of high-alloyed tool steel with its saving up to 90 %. A scheme of loading and geometry of conjugated surfaces of the composite billet have been developed in the paper. Technology for obtaining bimetallic rod parts of die tooling with deformation at speed of vд = 70–80 m/s and composite billet temperature of Т = (1150±20 ºС has been experimentally tested with formation of a compound due to plastic flow of two billet parts on contact surface with removal of surface oxide films. Microstructures of the bimetallic compounds obtained with the help of high-speed hot extrusion method for compositions of structural and high-alloy steels have been investigated and their high quality has been proved during the investigations. Dependences of micro-hardness distribution have been established outbound two steel contact plane in the zone of connection that are characterized by a minimum micro-hardness value in the connection joint. Availability of more plastic zone in the contact plane contributes to reduction of residual stresses due to their relaxation in this zone and higher joint strength.

  3. Information technology in chemistry research and education: Part I. Ab initio studies on the hydrolysis of aromatic diazonium ions. Part II. Theoretical study and molecular modeling of non-covalent interactions. Part III. Applying information technology in chemistry education

    Science.gov (United States)

    Wu, Zhengyu

    Part I of this dissertation studies the bonding in chemical reactions, while Part II studies the bonding related to inter- and intra-molecular interactions. Part III studies the application of IT technology in chemistry education. Part I of this dissertation (chapter 1 and chapter 2) focuses on the theoretical studies on the mechanism of the hydrolysis reactions of benzenediazonium ion and guaninediazonium ion. The major conclusion is that in hydrolysis reactions the "unimolecular mechanism" actually has to involve the reacting solvent molecule. Therefore, the unimolecular pathway can only serve as a conceptual model but will not happen in the reality. Chapter I concludes that the hydrolysis reaction of benzenediazonium ion takes the direct SN2Ar mechanism via a transition state but without going through a pre-coordination complex. Chapter 2 concludes that the formation of xanthine from the dediazoniation reaction of guaninediazonium ion in water takes the SN2Ar pathway without a transition state. And oxanine might come from an intermediate formed by the bimolecular deprotonation of the H atom on N3 of guaninediazonium ion synchronized with the pyrimidine ring opening reaction. Part II of this dissertation includes chapters 3, 4, and 5. Chapter 3 studies the quadrupole moment of benzene and quadrupole-quadrupole interactions. We concluded that the quadrupole-quadrupole interaction is important in the arene-arene interactions. Our study shows the most stable structure of benzene dimer is the point-to-face T-shaped structure. Chapter 4 studies the intermolecular interactions that result in the disorder of the crystal of 4-Chloroacetophenone-(4-methoxyphenylethylidene). We analyzed all the nearest neighbor interactions within that crystal and found that the crystal structure is determined by its thermo-dynamical properties. Our calculation perfectly reproduced the percentage of parallel-alignment of the crystal. Part III of this dissertation is focused on the

  4. Automated entry technologies for confined space work activities: A survey.

    Science.gov (United States)

    Botti, Lucia; Ferrari, Emilio; Mora, Cristina

    2017-04-01

    Work in confined spaces poses a significant risk to workers and rescuers involved in the emergency response when an accident occurs. Despite several standards and regulations define the safety requirements for such activities, injuries, and fatalities still occur. Furthermore, the on-site inspections after accidents often reveal that both employers and employees fail to implement safe entry procedures. Removing the risk is possible by avoiding the worker entry, but many activities require the presence of the operator inside the confined space to perform manual tasks. The following study investigates the available technologies for hazardous confined space work activities, e.g., cleaning, inspecting, and maintenance tasks. The aim is to provide a systematic review of the automated solutions for high-risk activities in confined spaces, considering the non-man entry as the most effective confined space safety strategy. Second, this survey aims to provide suggestions for future research addressing the design of new technologies. The survey consists of about 60 papers concerning innovative technologies for confined space work activities. The document review shows that several solutions have been developed and automation can replace the workers for a limited number of hazardous tasks. Several activities still require the manual intervention due to the complex characteristics of confined spaces, e.g., to remove the remains of the automatic cleaning process from the bottom of a tank. The results show that available technologies require more flexibility to adapt to such occupational environments and further research is needed.

  5. A Study of Future Communications Concepts and Technologies for the National Airspace System-Part III

    Science.gov (United States)

    Ponchak, Denise S.; Apaza, Rafael D.; Wichgersm Joel M.; Haynes, Brian; Roy, Aloke

    2014-01-01

    The National Aeronautics and Space Administration (NASA) Glenn Research Center (GRC) is investigating current and anticipated wireless communications concepts and technologies that the National Airspace System (NAS) may need in the next 50 years. NASA has awarded three NASA Research Announcements (NAR) studies with the objective to determine the most promising candidate technologies for air-to-air and air-to-ground data exchange and analyze their suitability in a post-NextGen NAS environment. This paper will present progress made in the studies and describe the communications challenges and opportunities that have been identified as part of the study. NASA's NextGen Concepts and Technology Development (CTD) Project integrates solutions for a safe, efficient and high-capacity airspace system through joint research efforts and partnerships with other government agencies. The CTD Project is one of two within NASA's Airspace Systems Program and is managed by the NASA Ames Research Center. Research within the CTD Project is in support the 2011 NASA Strategic Plan Sub-Goal 4.1: Develop innovative solutions and advanced technologies, through a balanced research portfolio, to improve current and future air transportation. The focus of CTD is on developing capabilities in traffic flow management, dynamic airspace configuration, separation assurance, super density operations and airport surface operations. Important to its research is the development of human/automation information requirements and decisionmaking guidelines for human-human and human-machine airportal decision-making. Airborne separation, oceanic intrail climb/descent and interval management applications depend on location and intent information of surrounding aircraft. ADS-B has been proposed to provide the information exchange, but other candidates such as satellite-based receivers, broadband or airborne internet, and cellular communications are possible candidate's.

  6. Engineering and Technology Challenges for Active Debris Removal

    Science.gov (United States)

    Liou, Jer-Chyi

    2011-01-01

    After more than fifty years of space activities, the near-Earth environment is polluted with man-made orbital debris. The collision between Cosmos 2251 and the operational Iridium 33 in 2009 signaled a potential collision cascade effect, also known as the "Kessler Syndrome", in the environment. Various modelling studies have suggested that the commonly-adopted mitigation measures will not be sufficient to stabilize the future debris population. Active debris removal must be considered to remediate the environment. This paper summarizes the key issues associated with debris removal and describes the technology and engineering challenges to move forward. Fifty-four years after the launch of Sputnik 1, satellites have become an integral part of human society. Unfortunately, the ongoing space activities have left behind an undesirable byproduct orbital debris. This environment problem is threatening the current and future space activities. On average, two Shuttle window panels are replaced after every mission due to damage by micrometeoroid or orbital debris impacts. More than 100 collision avoidance maneuvers were conducted by satellite operators in 2010 to reduce the impact risks of their satellites with respect to objects in the U.S. Space Surveillance Network (SSN) catalog. Of the four known accident collisions between objects in the SSN catalog, the last one, collision between Cosmos 2251 and the operational Iridium 33 in 2009, was the most significant. It was the first ever accidental catastrophic destruction of an operational satellite by another satellite. It also signaled the potential collision cascade effect in the environment, commonly known as the "Kessler Syndrome," predicted by Kessler and Cour-Palais in 1978 [1]. Figure 1 shows the historical increase of objects in the SSN catalog. The majority of the catalog objects are 10 cm and larger. As of April 2011, the total objects tracked by the SSN sensors were more than 22,000. However, approximately 6000 of

  7. Capsicum production, technology, chemistry, and quality. Part 1: History, botany, cultivation, and primary processing.

    Science.gov (United States)

    Govindarajan, V S

    1985-01-01

    The genus Capsicum (Fam. Solanaceae) was known to ancient cultures and was more recently historically associated with the discovery of the New World. This genus provides many species and varieties used in flavoring foods popular in the cuisines of many parts of the world. From the pungent chilli to the colorful paprika and the bell pepper, with its remarkable aroma, the genus is of great interest for its chemistry, sensory attributes, and physiological action. The Capsicums, among the spices, are second only to black pepper in trade both in volume and value. The production of the different pungency forms, the processed seasonings, and the concentrated oleoresins, through technologically advanced processes and in specified standard grades, are critically reviewed. The pungency of Capsicum fruits, its evaluation, chemical structure relationship, its increasing acceptance and preference by a variety of populations are of great research interest. The wide traditional use in the growing regions and its intense physiological effects have attracted the attention of researchers of many different disciplines. These aspects are reviewed in four sequential parts. Part I deals with history, botany, cultivation, and primary processing.

  8. Round table part 2 : Identification of the key technologies and collaboration for air revitalization

    Science.gov (United States)

    Lasseur, Christophe; Tikhomirov, Alexander A.; Wheeler, Raymond

    2016-07-01

    The first metabolic needs in terms of urgency is of course oxygen and in terms of contaminants CO2. Over the years, many studies have been performed to recover oxygen from Co2 our from water. Within this part 2 of the roundtable it is proposed to perform a state te of the art of the main activities in the world and to identify overlap and synergies. Recommendation for potential collaboration or exchanges will be discussed.

  9. Round table part 3 : Identification of the key technologies and collaboration for water recycling

    Science.gov (United States)

    Lasseur, Christophe; Tikhomirov, Alexander A.; Wheeler, Raymond

    2016-07-01

    The first metabolic needs in terms of mass is water. Among the years a large number of studies have been performed to recover condensate as well as from urine. Production of water is as well considered and demonstrated via Sabatier reactor. Within this part 3 of the roundtable it is proposed to perform a state of the art of the main activities in the world and to identify overlap and synergies. Recommendation for potential collaboration or exchanges will be discussed.

  10. Managing Returnable Containers Logistics - A Case Study Part II - Improving Visibility through Using Automatic Identification Technologies

    OpenAIRE

    Gretchen Meiser; Maleki, Reza A.

    2011-01-01

    This case study is the result of a project conducted on behalf of a company that uses its own returnable containers to transport purchased parts from suppliers. The objective of this project was to develop a proposal to enable the company to more effectively track and manage its returnable containers. The research activities in support of this project included (1) the analysis and documentation of the physical flow and the information flow associated with the container...

  11. Capsicum--production, technology, chemistry, and quality--Part II. Processed products, standards, world production and trade.

    Science.gov (United States)

    Govindarajan, V S

    1986-01-01

    Capsicums, as a spice, have been known since the beginning of civilization and historically associated with the discovery of the New World. The genus Capsicum (Fam. Solanaceae) provides many varieties and adds color, pungency, and aroma to the cuisines of most of the world. From the pungent chilli, of interest also to pharmaceuticals, to the colorful paprika and the bell capsicums with its remarkable aroma, the genus has been of great interest for its chemistry and physiological action. Pungency as a sensory attribute, its evaluation, structure-activity relationship, and its increasing acceptance and preference by diverse populations of the world are of great interest to many research disciplines. In a comprehensive review of all aspects in four sequential parts, Part I deals with History, Botany, Cultivation, and Primary Processing (CRC Critical Review, Food Science and Nutrition). The Capsicums among the spices are second only to black pepper in trades both in volume and value. The production of the different forms of this spice as ground, specialty seasonings, and as the concentrated oleoresins through technologically advanced processes, proposed newer products, the standard to control quality of the different products, world production, trade, and prospects are reviewed in detail in this, Part II.

  12. 29 CFR 779.210 - Other activities which may be part of the enterprise.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Other activities which may be part of the enterprise. 779...; Enterprise Coverage Related Activities § 779.210 Other activities which may be part of the enterprise. (a) An enterprise may perform certain activities that appear entirely foreign to its principal business but which...

  13. Citrus fruits--varieties, chemistry, technology, and quality evaluation. Part II. Chemistry, technology, and quality evaluation. A. Chemistry.

    Science.gov (United States)

    Ranganna, S; Govindarajan, V S; Ramana, K V

    1983-01-01

    In Part 2 of this review on citrus fruits, the literature on chemistry, technology, and quality evaluation are critically considered. Sweet oranges, mandarin, grapefruit, lemon, and lime are generally used for processing. The literature on chemical components of citrus fruit which include sugars, polysaccharides, oraganic acids, nitrogenous constituents and lipids; carotenoids which contribute to color; vitamins and minerals, and flavonoids; limonoids, some of which impart bitterness to the juice; and the volatile components which contribute to aroma have been reviewed. Chilled and pasteurized juices, juice concentrates, and beverages are the important products manufactured commercially, and to a limited extent powdered citrus juices, canned segments, and marmalades. The literature on the manufacture of these products also as new types of juice and oil extractors; TASTE and other types of evaporators; tank farms to store juice and concentrate in bulk; aseptic filling in bulk containers and retail packs; alternate flexible and rigid containers other than glass and tin; and recovery of volatile flavoring constituents during juice processing are some of the important technological developments in the recent past and have been discussed. Bitterness in citrus juices and its control, composition of cloud, and its stability and changes during storage have been reviewed. Essential oils, pectin, frozen and dried juice sacs, dried pulp and molasses, flavonoids, seed oil, and meal are the important byproducts, the manufacture of which is given in essential details. Generally, consumers judge the product on the basis of its sensory attributes. The quality of finished product is dependent upon the raw materials used and control of processes. The U.S. Department of Agriculture (USDA) standards for different products, physicochemical and microbiological parameters prescribed as indices of quality of fruit, juice, concentrate, and other products; composition of essential oils; and

  14. Trends in Energy Management Technology - Part 3: State of Practiceof Energy Management, Control, and Information Systems

    Energy Technology Data Exchange (ETDEWEB)

    Yee, Gaymond; Webster, Tom

    2004-02-01

    In this report, the third in a series, we provide an evaluation of several products that exemplify the current state of practice of Energy Management, Control, and Information Systems (EMCIS). The available features for these products are summarized and analyzed with regard to emerging trends in EMCIS and potential benefits to the federal sector. The first report [1] covered enabling technologies for emerging energy management systems. The second report [2] serves as a basic reference for building control system (BCS) networking fundamentals and includes an assessment of current approaches to open communications. Part 4 of this series will discuss applications software from a user's perspective. It is important for energy managers in the Federal sector to have a high level of knowledge and understanding of these complex energy management systems. This series of reports provides energy practitioners with some basic informational and educational tools to help make decisions relative to energy management systems design, specification, procurement, and energy savings potential.

  15. Handbook on Special Works. Technological Lines of Industrial Enterprises. Part 1,

    Science.gov (United States)

    1979-10-16

    602 Chapter XI. Materials for Manufacture and Assembly of Technological Conduits ..................................... 643 Chapter XII ...4.49 -1,Ox2nn~ N157 I 62 Ij 20M 11.2 .A4 X 2 𔃺 21 I 47 358 258 7.00 3,5n_ ,_ 1.11 3 308 5.39 45’)XS) .147 I 48 I2)16.25 *~ XII I 263 I 5 I 1 310 13.16 4...Page 293. Tabla 24. Enumeration of tua Szaudrdized parts of conduits/aanifolds from brass on Ppw-S and 200 xg/£aa. iNU M M . sA . .. ., , AWtl M ll

  16. Generational influences in academic emergency medicine: teaching and learning, mentoring, and technology (part I).

    Science.gov (United States)

    Mohr, Nicholas M; Moreno-Walton, Lisa; Mills, Angela M; Brunett, Patrick H; Promes, Susan B

    2011-02-01

    For the first time in history, four generations are working together-traditionalists, baby boomers, generation Xers (Gen Xers), and millennials. Members of each generation carry with them a unique perspective of the world and interact differently with those around them. Through a review of the literature and consensus by modified Delphi methodology of the Society for Academic Emergency Medicine Aging and Generational Issues Task Force, the authors have developed this two-part series to address generational issues present in academic emergency medicine (EM). Understanding generational characteristics and mitigating strategies can help address some common issues encountered in academic EM. Through recognition of the unique characteristics of each of the generations with respect to teaching and learning, mentoring, and technology, academicians have the opportunity to strategically optimize interactions with one another.

  17. Generational Influences in Academic Emergency Medicine: Teaching and Learning, Mentoring, and Technology (Part I)

    Science.gov (United States)

    Mohr, Nicholas M.; Moreno-Walton, Lisa; Mills, Angela M.; Brunett, Patrick H.; Promes, Susan B.

    2010-01-01

    For the first time in history, four generations are working together – Traditionalists, Baby Boomers, Generation Xers, and Millennials. Members of each generation carry with them a unique perspective of the world and interact differently with those around them. Through a review of the literature and consensus by modified Delphi methodology of the Society for Academic Emergency Medicine (SAEM) Aging and Generational Issues Task Force, the authors have developed this two-part series to address generational issues present in academic emergency medicine (EM). Understanding generational characteristics and mitigating strategies can help address some common issues encountered in academic EM. Through recognition of the unique characteristics of each of the generations with respect to teaching and learning, mentoring, and technology, academicians have the opportunity to strategically optimize interactions with one another. PMID:21314779

  18. Reasoning about tasks, activities and technology to support collaboration.

    Science.gov (United States)

    Watts, L A; Monk, A F

    1998-11-01

    An aspect of collaboration described as 'semi-synchronized activity' is discussed as a particular challenge for the task analysis (TA) of collaborative work. TA typically involves the decomposition of work systems into essentially independent component processes between which commodities (information or materials) pass. In collaborative work, people routinely violate the condition of independence by moving seemlessly in and out of synchronization with one another, allowing for both independent and varying levels of conjoint activity. The shift between joint and independent projects is not fixed but managed through more or less explicit awareness of the other people over time. A number of case studies of the effect of communication technologies in telemedical consultation are drawn upon to illustrate the relationship between awareness and synchronization in collaborative work. They show that an analysis of collaborative activity requires a consideration of: (1) the activities constituting work; (2) the interactions between participants required to carry out the activities; (3) who else has access to these activities besides the primary participants in the ongoing work; (4) the contemporaneity of activities; (5) the locations/environments in which the activities are carried out; and (6) the constraints that apply to accessibility and participation within and between these environments. The Comms Usage Diagram is described as a framing notation incorporating these characteristics for a broad, communications-level analysis of collaborative activity. It shows how particular technologies relate to particular phases of work, indexing their effects to collaborative activities in those contexts.

  19. [Historical sketch of modern pharmaceutical science and technology (Part 4). Post World War II 50 years].

    Science.gov (United States)

    Yamakawa, K

    1995-01-01

    A short history of the pharmaceutical science and technology, postwar 50 years is divided into nine sections for the purpose of discussion. 1. Japan's postwar rehabilitation, Japanese pharmaceutical industries and newly developed pharmaceutical sciences and technologies. In 1945, the Japanese pharmaceutical industry was reconstructed. Production of penicillin was carried out with the strong support of the U.S. Occupation Forces. New sciences in pharmacy (biochemistry, biopharmacy, pharmacology, microbiology, physical chemistry, etc.) were introduced in this period. 2. Introduction age of foreign new drugs and technology (1951 to 1960s). Japan gained independence in 1951. Japanese pharmaceutical companies imported many new drugs and new pharmaceutical technologies from the U.S.A. and European countries in this period. Then, these companies were reconstruction rapidly. However, consequently Japanese pharmaceutical companies were formed as an imitation industry. 3. Rapid economic growth period for pharmaceutical companies (1956 to 1970s). In this period, many Japanese pharmaceutical companies grew rapidly at an annual rate of 15-20% over a period of 15 years, especially with regard to the production of active vitamin B1 analog drugs and some OTC (public health drugs). Some major companies made large profits, which were used to construct research facilities. 4. Problems for the harmful effects of medicines and its ethical responsibility. In the 1970s, many public toxic and harmful effects of medicines were caused, especially SMON's disease. In this time, many pharmaceutical companies changed to its security got development of ethical drugs. 5. Self development of new drugs and administration of pharmaceutical rules (1970s). During the 1970s, many pharmaceutical laws (GLP, GCP, GMP, GPMSP etc.) were enacted by the Ministry of Health and Welfare. In 1976, the Japanese Pharmaceutical Affairs Law was revised, which set forth standards regarding the efficacy and safety of

  20. 15 CFR Supplement No. 1 to Part 734 - Questions and Answers-Technology and Software Subject to the EAR

    Science.gov (United States)

    2010-01-01

    ... Software Subject to the EAR No. Supplement No. 1 to Part 734 Commerce and Foreign Trade Regulations... Supplement No. 1 to Part 734—Questions and Answers—Technology and Software Subject to the EAR This Supplement... to the EAR. It is intended to give the public guidance in understanding how BIS interprets this...

  1. A status of the Turbine Technology Team activities

    Science.gov (United States)

    Griffin, Lisa W.

    1992-01-01

    The recent activities of the Turbine Technology Team of the Consortium for Computational Fluid Dynamics (CFD) Application in Propulsion Technology is presented. The team consists of members from the government, industry, and universities. The goal of this team is to demonstrate the benefits to the turbine design process attainable through the application of CFD. This goal is to be achieved by enhancing and validating turbine design tools for improved loading and flowfield definition and loss prediction, and transferring the advanced technology to the turbine design process. In order to demonstrate the advantages of using CFD early in the design phase, the Space Transportation Main Engine (STME) turbines for the National Launch System (NLS) were chosen on which to focus the team's efforts. The Turbine Team activities run parallel to the STME design work.

  2. Banana Bark as A Part of Acoustic Design Unit by Hybrid Technology Application

    Directory of Open Access Journals (Sweden)

    Maharani Dian Permanasari

    2014-10-01

    Full Text Available Abstract. Banana bark is one of tropical indigenous natural resources that can be used as main material for many products. Being a fast-growing renewable material, it is durable and has natural patterns that people find visually attractive. Naturally, its textures and patterns are its main values; therefore it has the potential to be developed further. This research is needed to optimize the growth of small craft industries of banana bark, including the community where production activities take place, and also to provide information or reference of banana bark utilizations. Previous experiments conclude that banana bark has porous structure, high flexibility, relatively water-resistant due to its natural wax coating that resists water droplets, unless being washed down immensely. Also, due to its softwood- and paper-like properties, ithas many possibilities to be formed and processed into various functional products, mostly as craft products. In the subsequent study, the research about the utilization of banana bark in small industries starting from the harvesting system, handling problems in raw material supply, applying proper technology in improving the material’s quality, improving the human-resource working culture by appropriate technologies, and also innovating the product’s designs. The recommended designs can be implemented to improve the performance and qualities of banana bark products.Keywords: applied technology; banana bark; renewable materials; design; sustainability.

  3. Planning as a part of human resource management activities

    OpenAIRE

    Kulić, Živko; Milošević, Goran

    2012-01-01

    Human resource management activities are most often grouped, or classified in that they are reduced to some ten basic activities. These activities are considered to be: work analysis; human resource planning; human resource recruitment; human resource selection; employee socialization and orientation; employee training and education; employee performance evaluation; employee rewarding and motivating; employee health and security; career management, and employee degradation and lying off. The ...

  4. Integrating Physical Activity Data Technologies into Elementary School Classrooms

    Science.gov (United States)

    Lee, Victor R.; Thomas, Jonathan M.

    2011-01-01

    This paper describes an iteration of a design-based research project that involved integrating commercial physical activity data (PAD) sensors, such as heart rate monitors and pedometers, as technologies that could be used in two fifth grade classrooms. By working in partnership with two participating teachers and seeking out immediate resources…

  5. Structural properties of H13 tool steel parts produced with use of selective laser melting technology

    Science.gov (United States)

    Šafka, J.; Ackermann, M.; Voleský, L.

    2016-04-01

    This paper deals with establishing of building parameters for 1.2344 (H13) tool steel processed using Selective Laser Melting (SLM) technology with layer thickness of 50 µm. In the first part of the work, testing matrix of models in the form of a cube with chamfered edge were built under various building parameters such as laser scanning speed and laser power. Resulting models were subjected to set of tests including measurement of surface roughness, inspection of inner structure with aid of Light Optical Microscopy and Scanning Electron Microscopy and evaluation of micro-hardness. These tests helped us to evaluate an influence of changes in building strategy to the properties of the resulting model. In the second part of the work, mechanical properties of the H13 steel were examined. For this purpose, the set of samples in the form of “dog bone” were printed under three different alignments towards the building plate and tested on universal testing machine. Mechanical testing of the samples should then reveal if the different orientation and thus different layering of the material somehow influence its mechanical properties. For this type of material, the producer provides the parameters for layer thickness of 30 µm only. Thus, our 50 µm building strategy brings shortening of the building time which is valuable especially for large models. Results of mechanical tests show slight variation in mechanical properties for various alignment of the sample.

  6. Diagnosis of mucoviscidosis by neutron activation analysis. Part 1; Diagnostico da mucoviscidose utilizando analise por ativacao com neutrons. Parte 1

    Energy Technology Data Exchange (ETDEWEB)

    Bellido, Luis F.; Bellido, Alfredo V

    1997-02-01

    Symptoms pathology, incidence, and gravity of the inherent syndrome called mucoviscidosis, or cystic fibrosis are described in this Part I. The analytical methods used for its diagnosis, both the conventional chemical ones and by neutron activation analysis are also summarised. Finally, an analytical method to study the incidence of mucoviscidosis in Brazil is presented. This , essentially, consists in bromine determination, in fingernails, by resonance neutron activation analysis. (author) 33 refs., 13 figs.

  7. Active noise control technology. Active soon seigyo gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Eguchi, M.; Kokubo, F.; Tanaka, S.; Yao, K. (Sharp Corp., Osaka (Japan))

    1994-05-10

    The signal processing method of the Active Noise Control (ANC) system was studied. The principle of ANC is to output secondary sound waves having opposite phase, identical amplitude from the control point of the sound wave of the primary sound source, and eliminate the noise by interference. As application fields, there are air conditioner ducts and compressors as one dimensional noise source, and automobile and axial fan as three dimensional noise source. In order to improve the stability of coefficient renewal algorithm of Adaptive Digital Filter (ADF), for generation of opposite phase noise, DC-LMS algorithm which can control the rise in gain of specified frequency zone was proposed. Furthermore, with the purpose of reducing the amount of operation, the introduction of lattice type AR filter was tested for the stability of the filter in IIR-ADF (Infinite Impulse Response Adaptive Digital Filter) and its application process. The applicability studies of these improved methods on the noise inside of ducts were actually measured, and the effect was verified. For the multi-channel control of 3 dimensional noise source, reference scanning method to reduce the filter operation was proposed. In the partial space noise eliminating experiment, it was made clear that it possesses equivalent effect to error scanning method. 11 refs., 14 figs., 1 tab.

  8. 32 CFR 143.6 - Activity not covered by this part.

    Science.gov (United States)

    2010-07-01

    ... FORCES IN NEGOTIATION OR COLLECTIVE BARGAINING § 143.6 Activity not covered by this part. (a) This part... redress of grievances; or (6) Take such other administrative action to seek such administrative or...

  9. Steel fiber reinforced concrete pipes: part 1: technological analysis of the mechanical behavior

    Directory of Open Access Journals (Sweden)

    A. D. de Figueiredo

    Full Text Available This paper is the first part of an extensive work focusing the technological development of steel fiber reinforced concrete pipes (FRCP. Here is presented and discussed the experimental campaign focusing the test procedure and the mechanical behavior obtained for each of the dosages of fiber used. In the second part ("Steel fiber reinforced concrete pipes. Part 2: Numerical model to simulate the crushing test", the aspects of FRCP numerical modeling are presented and analyzed using the same experimental results in order to be validated. This study was carried out trying to reduce some uncertainties related to FRCP performance and provide a better condition to the use of these components. In this respect, an experimental study was carried out using sewage concrete pipes in full scale as specimens. The diameter of the specimens was 600 mm, and they had a length of 2500 mm. The pipes were reinforced with traditional bars and different contents of steel fibers in order to compare their performance through the crushing test. Two test procedures were used in that sense. In the 1st Series, the diameter displacement was monitored by the use of two LVDTs positioned at both extremities of the pipes. In the 2nd Series, just one LVDT is positioned at the spigot. The results shown a more rigidity response of the pipe during tests when the displacements were measured at the enlarged section of the socket. The fiber reinforcement was very effective, especially when low level of displacement was imposed to the FRCP. At this condition, the steel fibers showed an equivalent performance to superior class pipes made with traditional reinforced. The fiber content of 40 kg/m3 provided a hardening behavior for the FRCP, and could be considered as equivalent to the critical volume in this condition.

  10. The United Nations Human Space Technology Initiative (HSTI): Science Activities

    CERN Document Server

    Niu, A; Haubold, H J; Doi, T

    2012-01-01

    The United Nations Human Space Technology Initiative (HSTI) aims at promoting international cooperation in human spaceflight and space exploration-related activities; creating awareness among countries on the benefits of utilizing human space technology and its applications; and building capacity in microgravity education and research. HSTI has been conducting various scientific activities to promote microgravity education and research. The primary science activity is called 'Zero-gravity Instrument Distribution Project', in which one-axis clinostats will be distributed worldwide. The distribution project will provide unique opportunities for students and researchers to observe the growth of indigenous plants in their countries in a simulated microgravity condition and is expected to create a huge dataset of plant species with their responses to gravity.

  11. Biological Activities of Aerial Parts Extracts of Euphorbia characias

    Directory of Open Access Journals (Sweden)

    Maria Barbara Pisano

    2016-01-01

    Full Text Available The aim of the present study was to evaluate antioxidant, antimicrobial, anti-HIV, and cholinesterase inhibitory activities of aqueous and alcoholic extracts from leaves, stems, and flowers of Euphorbia characias. The extracts showed a high antioxidant activity and were a good source of total polyphenols and flavonoids. Ethanolic extracts from leaves and flowers displayed the highest inhibitory activity against acetylcholinesterase and butyrylcholinesterase, showing potential properties against Alzheimer’s disease. Antimicrobial assay showed that leaves and flowers extracts were active against all Gram-positive bacteria tested. The ethanolic leaves extract appeared to have the strongest antibacterial activity against Bacillus cereus with MIC value of 312.5 μg/mL followed by Listeria monocytogenes and Staphylococcus aureus that also exhibited good sensitivity with MIC values of 1250 μg/mL. Moreover, all the extracts possessed anti-HIV activity. The ethanolic flower extract was the most potent inhibitor of HIV-1 RT DNA polymerase RNA-dependent and Ribonuclease H with IC50 values of 0.26 and 0.33 μg/mL, respectively. The LC-DAD metabolic profile showed that ethanolic leaves extract contains high levels of quercetin derivatives. This study suggests that Euphorbia characias extracts represent a good source of natural bioactive compounds which could be useful for pharmaceutical application as well as in food system for the prevention of the growth of food-borne bacteria and to extend the shelf-life of processed foods.

  12. The activities of HPPA technology related to ADS in China

    CERN Document Server

    Guan Xia Ling; Ding Da Zhao; Fang Jia Xun; Fang Shou Xian; Fu Shin Ian; Guo, Z Y; Jiang Wei; Li Jie Quan; Luo Zi Hua; Ouyang Hua Fu; Peng Chao Hua; Xu Tao Guang; Xu Wen Wu; Yu Qi; Zhang Zong Hua; Zhao Sheng Chu

    2001-01-01

    High Power Proton Accelerator (HPPA) is being studied all over world for numerous applications, which includes the waste transmutation, spallation neutron source and material irradiation facilities. In China, a multi-purpose verification system as a first phase of Chinese ADS program consists of a low energy accelerator (150 MeV/3 mA proton linac) and a swimming pool light water sub-critical reactor. The activities of HPPA technology related to ADS in China, which includes the intense proton ECR source, the RFQ accelerator and some other technology of HPPA, are described

  13. Designing Technology for Active Spectator Experiences at Sporting Events

    DEFF Research Database (Denmark)

    Veerasawmy, Rune; Ludvigsen, Martin

    2010-01-01

    behaviour in the context. The work presented also argues for a need to overcome the inclination to designing technological systems that imitate or compete with the experience of watching the television broadcast of the game. Experiments such as the presented BannerBattle are cornerstones in our exploratory......This paper explores the active spectator experience at sporting events, by presenting and reflecting upon a design experiment carried out at a number of football1 events. The initial hypothesis of the design process, leading to the design experiment has been that the spectator experience...... research-through-design approach to designing technologies for social experiences....

  14. Application of active powders at fluidised bed heat treatment technologies

    OpenAIRE

    Babul, T.; Kucharieva, N.

    2014-01-01

    The paper describes the principles and conditions of carrying out of a new type of fluidised bed thermochemical treatment in chemically active powders with different ways of fluidisation. These new fluidised bed thermochemical treatments in chemically active powders are primarily for the formation of surface diffusion layers on parts made of constructional and tool steel. This method can be used for sherardising, alitising, carbonitriding, nitrocarburising, carburising or boronising. Chara...

  15. IN SITU REMEDIATION OF CONTAMINATED SEDIMENTS - ACTIVE CAPPING TECHNOLOGY

    Energy Technology Data Exchange (ETDEWEB)

    Knox, A.; Roberts, J.; Paller, M.; Reible, D.

    2010-09-02

    Active capping is a relatively new approach for treating contaminated sediments. It involves applying chemically reactive amendments to the sediment surface. The main role of active caps is to stabilize contaminants in contaminated sediments, lower the bioavailable pool of contaminants, and reduce the release of contaminants to the water column. Metals are common contaminants in many marine and fresh water environments as a result of industrial and military activities. The mobile, soluble forms of metals are generally considered toxic. Induced chemical precipitation of these metals can shift toxic metals from the aqueous phase to a solid, precipitated phase which is often less bioavailable. This approach can be achieved through application of sequestering agents such as rock phosphates, organoclays, zeolites, clay minerals, and biopolymers (e.g., chitosan) in active capping technology. Active capping holds great potential for a more permanent solution that avoids residual risks resulting from contaminant migration through the cap or breaching of the cap. In addition to identifying superior active capping agents, research is needed to optimize application techniques, application rates, and amendment combinations that maximize sequestration of contaminants. A selected set of active capping treatment technologies has been demonstrated at a few sites, including a field demonstration at the Savannah River Site, Aiken, SC. This demonstration has provided useful information on the effects of sequestering agents on metal immobilization, bioavailability, toxicity, and resistance to mechanical disturbance.

  16. Complement system part I - molecular mechanisms of activation and regulation

    Directory of Open Access Journals (Sweden)

    Nicolas eMerle

    2015-06-01

    Full Text Available Complement is a complex innate immune surveillance system, playing a key role in defense against pathogens and in host homeostasis. The complement system is initiated by conformational changes in recognition molecular complexes upon sensing danger signals. The subsequent cascade of enzymatic reactions is tightly regulated to assure that complement is activated only at specific locations requiring defense against pathogens, thus avoiding host tissue damage. Here we discuss the recent advances describing the molecular and structural basis of activation and regulation of the complement pathways and their implication on physiology and pathology. This article will review the mechanisms of activation of alternative, classical and lectin pathways, the formation of C3 and C5 convertases, the action of anaphylatoxins and the membrane attack complex. We will also discuss the importance of structure-function relationships using the example of atypical hemolytic uremic syndrome. Lastly we will discuss the development and benefits of therapies using complement inhibitors.

  17. A potential CARB-pharmacophore for antineoplastic activity: part 1.

    Science.gov (United States)

    Witczak, Zbigniew J; Poplawski, Tomasz; Czubatka, Anna; Sarnik, Joanna; Tokarz, Pawel; VanWert, Adam L; Bielski, Roman

    2014-04-01

    Diverse functionalized representatives of various classes of sugars, such as thio-, anhydro-, and sulfamido-sugars and myo-inositol oxide, were synthesized and assessed for cytotoxicity against human cancer cell lines (A549, LoVo, MCF-7 and HeLa). The inositol oxide (4) was more active against MCF-7 cells (i.e., an estrogen-dependent breast cancer line), whereas all 3 sulfur-containing compounds showed strongest activity against A549 cells (i.e., a lung adenocarcinoma line). We propose to use a concept of functional 'CARB-pharmacophores' when evaluating a potential for the compounds' general antineoplastic activity. Future studies will determine the reasons for cell-type specificity of these compounds. The thio-sugar motif appears to be a promising lead for future developments. Copyright © 2014 Elsevier Ltd. All rights reserved.

  18. Screening of Iranian plants for antifungal activity: Part 2

    Directory of Open Access Journals (Sweden)

    "Amin Gh.R

    2002-08-01

    Full Text Available In this study, 278 species from 37 families of native Iranian plants were screened for in vitro antifungal activity against 19 fungal strains. Initially, the crude extracts in concentration of 100 μg/ml were tested. Among 278 plant extracts, 201(71.27% of them showed antifungal activity against at least one fungal strain. A wide range of total extracts of different species were shown to have potentially noticeable antifungal effects. The outstanding species were: Mentha longifolia, Saliva multicaulis, Thymus transcaspicus, Zataria multiflora, Glycyrrhiza glabra, Hulthemia persica, Heracleum persicum, Pimpinella anisum, Pragnos ferulacea, Pragnos uloptera, and Viola odorata.

  19. eHealth technologies to support nutrition and physical activity behaviors in diabetes self-management.

    Science.gov (United States)

    Rollo, Megan E; Aguiar, Elroy J; Williams, Rebecca L; Wynne, Katie; Kriss, Michelle; Callister, Robin; Collins, Clare E

    2016-01-01

    Diabetes is a chronic, complex condition requiring sound knowledge and self-management skills to optimize glycemic control and health outcomes. Dietary intake and physical activity are key diabetes self-management (DSM) behaviors that require tailored education and support. Electronic health (eHealth) technologies have a demonstrated potential for assisting individuals with DSM behaviors. This review provides examples of technologies used to support nutrition and physical activity behaviors in the context of DSM. Technologies covered include those widely used for DSM, such as web-based programs and mobile phone and smartphone applications. In addition, examples of novel tools such as virtual and augmented reality, video games, computer vision for dietary carbohydrate monitoring, and wearable devices are provided. The challenges to, and facilitators for, the use of eHealth technologies in DSM are discussed. Strategies to support the implementation of eHealth technologies within practice and suggestions for future research to enhance nutrition and physical activity behaviors as a part of broader DSM are provided.

  20. eHealth technologies to support nutrition and physical activity behaviors in diabetes self-management

    Science.gov (United States)

    Rollo, Megan E; Aguiar, Elroy J; Williams, Rebecca L; Wynne, Katie; Kriss, Michelle; Callister, Robin; Collins, Clare E

    2016-01-01

    Diabetes is a chronic, complex condition requiring sound knowledge and self-management skills to optimize glycemic control and health outcomes. Dietary intake and physical activity are key diabetes self-management (DSM) behaviors that require tailored education and support. Electronic health (eHealth) technologies have a demonstrated potential for assisting individuals with DSM behaviors. This review provides examples of technologies used to support nutrition and physical activity behaviors in the context of DSM. Technologies covered include those widely used for DSM, such as web-based programs and mobile phone and smartphone applications. In addition, examples of novel tools such as virtual and augmented reality, video games, computer vision for dietary carbohydrate monitoring, and wearable devices are provided. The challenges to, and facilitators for, the use of eHealth technologies in DSM are discussed. Strategies to support the implementation of eHealth technologies within practice and suggestions for future research to enhance nutrition and physical activity behaviors as a part of broader DSM are provided. PMID:27853384

  1. [The NAS system: Nursing Activities Score in mobile technology].

    Science.gov (United States)

    Catalan, Vanessa Menezes; Silveira, Denise Tolfo; Neutzling, Agnes Ludwig; Martinato, Luísa Helena Machado; Borges, Gilberto Cabral de Mello

    2011-12-01

    The objective of this study was to present the computerized structure that enables the use of the Nursing Activities Score (NAS) in mobile technology. It is a project for the development of technology production based on software engineering, founded on the theory of systems development life cycle. The NAS system was built in two modules: the search module, which is accessed using a personal computer (PC), and Data Collection module, which is accessed through a mobile device (Smartphone). The NAS system was constructed to allow other forms, in addition to the NAS tool, to be included in the future. Thus, it is understood that the development of the NAS will bring nurses closer to mobile technology and facilitate their accessibility to the data of the instrument relating to patients, thus assisting in decision-making and in staffing to provide nursing care.

  2. Future Jet Technologies. Part B. F-35 Future Risks v. JS-Education of Pilots & Engineers

    Science.gov (United States)

    Gal-Or, Benjamin

    2011-09-01

    Design of “Next-Generation” airframes based on supermarket-jet-engine-components is nowadays passé. A novel integration methodology [Gal-Or, “Editorial-Review, Part A”, 2011, Gal-Or, “Vectored Propulsion, Supermaneuverability and Robot Aircraft”, Springer Verlag, Gal-Or, Int'l. J. of Thermal and Fluid Sciences 7: 1-6, 1998, “Introduction”, 2011] is nowadays in. For advanced fighter aircraft it begins with JS-based powerplant, which takes up to three times longer to mature vis-à-vis the airframe, unless “committee's design” enforces a dormant catastrophe. Jet Steering (JS) or Thrust Vectoring Flight Control, is a classified, integrated engine-airframe technology aimed at maximizing post-stall-maneuverability, flight safety, efficiency and flight envelopes of manned and unmanned air vehicles, especially in the “impossible-to-fly”, post-stall flight domains where the 100+ years old, stall-spin-limited, Conventional Flight Control fails. Worldwide success in adopting the post-stall, JS-revolution, opens a new era in aviation, with unprecedented design variables identified here for a critical review of F-35 future risks v. future fleets of jet-steered, pilotless vehicles, like the X-47B/C. From the educational point of view, it is also instructive to comprehend the causes of long, intensive opposition to adopt post-stall, JS ideas. A review of such debates may also curb a future opposition to adopt more advanced, JS-based technologies, tests, strategies, tactics and missions within the evolving air, marine and land applications of JS. Most important, re-education of pilots and engineers requires adding post-stall, JS-based studies to curriculum & R&D.

  3. Water activity and activation diameters from hygroscopicity data - Part II: Application to organic species

    Directory of Open Access Journals (Sweden)

    K. A. Koehler

    2006-01-01

    Full Text Available A method has been developed for using particle hygroscopicity measurements made with a humidified tandem differential mobility analyzer (HTDMA to determine water activity as a function of solute weight percent. In Part I, the method was tested for particles composed of sodium chloride and ammonium sulfate. Here, we report results for several atmospherically-relevant organic species: glutaric acid, malonic acid, oxalic acid and levoglucosan. Predicted water activities for aqueous dicarboxylic acid solutions are quite similar in some cases to published estimates and the simplified predictions of Köhler theory, while in other cases substantial differences are found, which we attribute primarily to the semivolatile nature of these compounds that makes them difficult to study with the HTDMA. In contrast, estimates of water activity for levoglucosan solutions compare very well with recently-reported measurements and with published data for aqueous glucose and fructose solutions. For all studied species, the critical dry diameters active at supersaturations between 0.2 and 1% that are computed with the HTDMA-derived water activities are generally within the experimental error (~20% estimated in previously-published direct measurements using cloud condensation nuclei counters. For individual compounds, the variations in reported solution water activity lead to uncertainties in critical dry diameters of 5-25%, not significantly larger than the uncertainty in the direct measurements. To explore the impact of these uncertainties on modeled aerosol-cloud interactions, we incorporate the variations in estimates of solution water activities into the description of hygroscopic growth of aerosol particles in an adiabatic parcel model and examine the impact on the predicted drop number concentrations. For the limited set of initial conditions examined here, we find that the uncertainties in critical dry diameters for individual species lead to 0-21% changes in

  4. ENTERTAINMENT SERVICES IN RURAL AREAS – PART OF TOURISM ACTIVITIES

    Directory of Open Access Journals (Sweden)

    Dionisie Marian TURCU

    2014-04-01

    Full Text Available The work aims to highlight the niche forms of tourism (active tourism and ecotourism, showing similarities and differences between them. However it argues the need to introduce the occupation of rural tourism entertainer, showing the main tasks incumbent upon it to organize leisure tourists. The research was conducted by studying the latest articles in the field and by consulting specific websites.

  5. Business cycle and innovation activity in medium-high and high technology industry in Poland

    Directory of Open Access Journals (Sweden)

    Dzikowski Piotr

    2015-12-01

    Full Text Available This article examines differences in an impact of business cycle phases on innovation activity in medium-high and high technology industry in Poland. It is assumed that each business cycle phase influences innovation activity in the same fashion, but its impact varies and it depends on the firm’s innovation activity. The higher innovation activity the less impact of business cycle. The scope of the survey relates to innovation in MHT and HT industry in Poland. The data concerns the innovation at the firm level and the diffusion “new for the company”. Innovation activity is defined by the following activities: (1 expenditure on research and development and investments in fixed assets not used so far such as: abuildings, premises and land; b machinery and equipment, c computer software; (2 implementation of new products and technological processes and (3 innovation cooperation. The methodological part of the analysis includes a logit modeling. The survey includes 1355 companies. Business cycle has a great influence on innovation activity in MTH and HT industry in Poland. The influence of recovery phase is positive whereas both stagnation and recession phases decrease the probability of innovation activity. The character of influence depends on the propensity to take innovation activity. The higher level of innovation activity the enterprises present the less influence of business cycle they get.

  6. Projects from Federal Region IX: Department of Energy Appropriate Energy Technology Program. Part II

    Energy Technology Data Exchange (ETDEWEB)

    Case, C.W.; Clark, H.R.; Kay, J.; Lucarelli, F.B.; Rizer, S.

    1980-01-01

    Details and progress of appropriate energy technology programs in Region IX are presented. In Arizona, the projects are Solar Hot Water for the Prescott Adult Center and Solar Prototype House for a Residential Community. In California, the projects are Solar AquaDome Demonstration Project; Solar Powered Liquid Circulating Pump; Appropriate Energy Technology Resource Center; Digester for Wastewater Grown Aquatic Plants; Performance Characteristics of an Anaerobic Wastewater Lagoon Primary Treatment System; Appropriate Energy/Energy Conservation Demonstration Project; Solar Energy for Composting Toilets; Dry Creek Rancheria Solar Demonstration Projects; Demonstration for Energy Retrofit Analysis and Implementation; and Active Solar Space Heating System for the Integral Urban House. In Hawaii, the projects are: Java Plum Electric; Low-Cost Pond Digesters for Hawaiian Pig Farm Energy Needs; Solar Beeswax Melter; Methane Gas Plant for Operating Boilers and Generating Steam; and Solar Water Heating in Sugarcane Seed-Treatment Plants. A Wind-Powered Lighted Navigation Buoys Project for Guam is also described. A revised description of the Biogas Energy for Hawaiian Small Farms and Homesteads is given in an appendix.

  7. Dynamic positioning system based on active disturbance rejection technology

    Science.gov (United States)

    Lei, Zhengling; Guo, Chen; Fan, Yunsheng

    2015-08-01

    A dynamically positioned vessel, by the International Maritime Organization (IMO) and the certifying class societies (DNV, ABS, LR, etc.), is defined as a vessel that maintains its position and heading (fixed location or pre-determined track) exclusively by means of active thrusters. The development of control technology promotes the upgrading of dynamic positioning (DP) systems. Today there are two different DP systems solutions available on the market: DP system based on PID regulator and that based on model-based control. Both systems have limited disturbance rejection capability due to their design principle. In this paper, a new DP system solution is proposed based on Active Disturbance Rejection Control (ADRC) technology. This technology is composed of Tracking-Differentiator (TD), Extended State Observer (ESO) and Nonlinear Feedback Combination. On one hand, both TD and ESO can act as filters and can be used in place of conventional filters; on the other hand, the total disturbance of the system can be estimated and compensated by ESO, which therefore enhances the system's disturbance rejection capability. This technology's advantages over other methods lie in two aspects: 1) This method itself can not only achieve control objectives but also filter noisy measurements without other specialized filters; 2) This method offers a new useful approach to suppress the ocean disturbance. The simulation results demonstrate the effectiveness of the proposed method.

  8. Evaluation of Antioxidant Activity from Different Plant Parts of Senduduk Herb: Extraction Conditions Optimization of Selected Plant Part

    Directory of Open Access Journals (Sweden)

    Kamaludin Nor Helya Iman

    2017-01-01

    Full Text Available This work reports a study on evaluation of antioxidant properties from flower of Senduduk herb. Natural occurring antioxidant was mostly preferred due to their little or no toxicity compared to the synthetic antioxidants which posses carcinogenic effects. Extraction was done on selected plant parts of Sendududk herb including leaves, stem, flower and berry parts to evaluate their antioxidant potentiality. Flower part of Sendudk herb extracted using acetonic solvent promotes highest antioxidant activity which is 93.97 ± 1.38 % as compared to leaves (92.20 ± 0.20 %, stem (47.94 ± 1.42% and berry (92.88 ± 0.63% using the same extracting solvent. Thus, Senduduk flower was chosen to be continued with screening and optimization process. Single factor experiment using the one factor at a time (OFAT method was done to study the effect of each extraction parameter that was solid to solvent ratio, temperature and solvent concentration. The extraction condition in each parametric study which results in highest antioxidant activity was used as the middle level of optimization process using Response Surface Methodology (RSM coupled with Central Composite Design (CCD. The optimum condition was at 1:20 solid to solvent ratio, 64.61°C temperature and 80.24% acetone concentration which result in antioxidant activity of 96.53%. The verification of RSM showed that the model used to predict the antioxidant activity was valid and adequate with the experimental parameters.

  9. [Studies on purgative activity of rhubarb extracts by different technologies].

    Science.gov (United States)

    Zheng, Zhihua; Zhu, Chenchen; Gui, Shuhua; Lin, Chaozhan

    2002-08-01

    To study on purgative activity of rhubarb extracts by solvent extraction, SFE-CO2 and SFE-CO2 & residue resin purification. The effects of the extracts by the three technologies on creepage of mouse small intestine and rat large intestine were studied by injecting charcoal ink into the intestines. And the volume of the mouse small intestine was observed. The effects of the extracts were also studied on water absorption of mouse small intestine and large intestine by weighing the intestines. The purgative activity of the extracts by the three technologies was SFE-CO2 & residue resin purification > solvent extraction > SFE-CO2. Extracting different polar components separately might get a good result.

  10. Designing Technology for Active Spectator Experiences at Sporting Events

    DEFF Research Database (Denmark)

    Veerasawmy, Rune; Ludvigsen, Martin

    is not merely an experience of receiving and consuming entertainment. It is also heavily reliant on the active participation of the spectator in creating the atmosphere of the entire event. The BannerBattle experiment provides interactive technology in sport arenas with a form of interaction based on existing......This paper explores the active spectator experience at sporting events, by presenting and reflecting upon a design experiment carried out at a number of football1 events. The initial hypothesis of the design process, leading to the design experiment has been that the spectator experience...... behaviour in the context. The work presented also argues for a need to overcome the inclination to designing technological systems that imitate or compete with the experience of watching the television broadcast of the game. Experiments such as the presented BannerBattle are cornerstones in our exploratory...

  11. Active magnetic radiation shielding system analysis and key technologies.

    Science.gov (United States)

    Washburn, S A; Blattnig, S R; Singleterry, R C; Westover, S C

    2015-01-01

    Many active magnetic shielding designs have been proposed in order to reduce the radiation exposure received by astronauts on long duration, deep space missions. While these designs are promising, they pose significant engineering challenges. This work presents a survey of the major systems required for such unconfined magnetic field design, allowing the identification of key technologies for future development. Basic mass calculations are developed for each system and are used to determine the resulting galactic cosmic radiation exposure for a generic solenoid design, using a range of magnetic field strength and thickness values, allowing some of the basic characteristics of such a design to be observed. This study focuses on a solenoid shaped, active magnetic shield design; however, many of the principles discussed are applicable regardless of the exact design configuration, particularly the key technologies cited.

  12. Joint research center activity in thermonuclear fusion technology

    Energy Technology Data Exchange (ETDEWEB)

    Casini, G.; Rocco, P. (Commission of the European Communities, Ispra (Italy). Joint Research Centre)

    1984-04-01

    A review of the activities in progress in the field of thermonuclear fusion technology at the Joint Research Centre of the European Communities is presented. The research areas are: (I) reactor studies, including conceptual design studies of experimental Tokamak reactors (INTOR/NET) and safety analyses; (II) experimental investigation on first wall and blanket materials and components. Emphasis has been given to those topics which are not reported in detail in the following articles of the issue.

  13. Process technology activities at the Software Engineering Institute

    Energy Technology Data Exchange (ETDEWEB)

    Christie, A.M. [Carnegie Mellon Univ., Pittsburgh, PA (United States)

    1996-12-31

    This paper provides a brief overview of the rationale for, and direction of the software process technology work being pursued at the Software Engineering Institute. The paper then describes some of the activities that the SEI has recently been involved in. Finally, it relates in more detail an example of one specific effort; namely the development of a process modeling formalism and its use in process simulation.

  14. An Interactive Activation Model of the Effect of Context in Perception. Part II. Report No. 8003.

    Science.gov (United States)

    Rumelhart, David E.; McClelland, James L.

    This report is the second in a two-part series introducing an interactive activation model of context effects in perception. In the first part, a model for the perception of letters in words and other contexts was described and applied to a number of experiments. This second part applies the same model to a number of new experiments designed to…

  15. An Interactive Activation Model of the Effect of Context in Perception. Part II. Report No. 8003.

    Science.gov (United States)

    Rumelhart, David E.; McClelland, James L.

    This report is the second in a two-part series introducing an interactive activation model of context effects in perception. In the first part, a model for the perception of letters in words and other contexts was described and applied to a number of experiments. This second part applies the same model to a number of new experiments designed to…

  16. Impact of active controls technology on structural integrity

    Science.gov (United States)

    Noll, Thomas; Austin, Edward; Donley, Shawn; Graham, George; Harris, Terry

    1991-01-01

    This paper summarizes the findings of The Technical Cooperation Program to assess the impact of active controls technology on the structural integrity of aeronautical vehicles and to evaluate the present state-of-the-art for predicting the loads caused by a flight-control system modification and the resulting change in the fatigue life of the flight vehicle. The potential for active controls to adversely affect structural integrity is described, and load predictions obtained using two state-of-the-art analytical methods are given.

  17. eHealth technologies to support nutrition and physical activity behaviors in diabetes self-management

    Directory of Open Access Journals (Sweden)

    Rollo ME

    2016-11-01

    Full Text Available Megan E Rollo,1 Elroy J Aguiar,2 Rebecca L Williams,1 Katie Wynne,3 Michelle Kriss,3 Robin Callister,4 Clare E Collins1 1School of Health Sciences, Faculty of Health and Medicine, Priority Research Centre for Physical Activity and Nutrition, University of Newcastle, Callaghan, NSW, Australia; 2Department of Kinesiology, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, MA, USA; 3Department of Diabetes and Endocrinology, John Hunter Hospital, Hunter New England Health, New Lambton, NSW, Australia;\t4School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, Priority Research Centre for Physical Activity and Nutrition, University of Newcastle, Callaghan, NSW, Australia Abstract: Diabetes is a chronic, complex condition requiring sound knowledge and self-management skills to optimize glycemic control and health outcomes. Dietary intake and physical activity are key diabetes self-management (DSM behaviors that require tailored education and support. Electronic health (eHealth technologies have a demonstrated potential for assisting individuals with DSM behaviors. This review provides examples of technologies used to support nutrition and physical activity behaviors in the context of DSM. Technologies covered include those widely used for DSM, such as web-based programs and mobile phone and smartphone applications. In addition, examples of novel tools such as virtual and augmented reality, video games, computer vision for dietary carbohydrate monitoring, and wearable devices are provided. The challenges to, and facilitators for, the use of eHealth technologies in DSM are discussed. Strategies to support the implementation of eHealth technologies within practice and suggestions for future research to enhance nutrition and physical activity behaviors as a part of broader DSM are provided. Keywords: diabetes self-management, eHealth, nutrition, physical activity, smartphones, wearables

  18. 20 CFR 645.220 - What activities are allowable under this part?

    Science.gov (United States)

    2010-04-01

    ...) Occupational skills training; (3) English as a second language training; and (4) Mentoring. (f) Job retention... 20 Employees' Benefits 3 2010-04-01 2010-04-01 false What activities are allowable under this part....220 What activities are allowable under this part? Entities operating WtW projects may use WtW funds...

  19. The Analysis of the Available Technology of Exploiting and Applying Biohydrocarbons for Fuel Production Part I

    Directory of Open Access Journals (Sweden)

    Gielo-Klepacz Halina

    2017-08-01

    Full Text Available The article shows the current state of knowledge in the area of applying biohydrocarbons for fuel production, especially in aeronautical applications and to power compression-ignition engines. The technologies based on biochemical and thermal/chemical conversion of biomass are described. Technological potential of these technologies is evaluated. The article is based on the literature review.

  20. Oak Ridge K-25 Site Technology Logic Diagram. Volume 3, Technology evaluation data sheets; Part B, Remedial action, robotics/automation, waste management

    Energy Technology Data Exchange (ETDEWEB)

    Fellows, R.L. [ed.

    1993-02-26

    The Oak Ridge K-25 Technology Logic Diagram (TLD), a decision support tool for the K-25 Site, was developed to provide a planning document that relates environmental restoration (ER) and waste management (WN) problems at the Oak Ridge K-25 Site. The TLD technique identifies the research necessary to develop these technologies to a state that allows for technology transfer and application to waste management, remediation, decontamination, and decommissioning activities. The TLD consists of four separate volumes-Vol. 1, Vol. 2, Vol. 3A, and Vol. 3B. Volume 1 provides introductory and overview information about the TLD. Volume 2 contains logic diagrams. Volume 3 has been divided into two separate volumes to facilitate handling and use. This volume 3 B provides the Technology Evaluation Data Sheets (TEDS) for ER/WM activities (Remedial Action Robotics and Automation, Waste Management) that are referenced by a TEDS code number in Vol. 2 of the TLD. Each of these sheets represents a single logic trace across the TLD. These sheets contain more detail than each technology in Vol. 2. The TEDS are arranged alphanumerically by the TEDS code number in the upper right corner of each data sheet. Volume 3 can be used in two ways: (1) technologies that are identified from Vol. 2 can be referenced directly in Vol. 3 by using the TEDS codes, and (2) technologies and general technology areas (alternatives) can be located in the index in the front of this volume.

  1. Active Tectonics: Part 2: Epeirogenic and intraplate movements

    Science.gov (United States)

    Brown, L. D.; Reilinger, R. E.

    The major deformations of the Earth's surface are largely consistent with the tenets of plate tectonics, which predict that such activity should be focused at the various boundaries along which massive lithospheric plates collide, pull apart, or slide past one another. Yet crustal deformations also occur well into the interior of these plates. Some may represent the distributed effects of distant plate boundaries, as, for example, the earthquakes of the intermontane western United States. Some, such as the geodetically observed uplift over a deep magma chamber in the Rio Grande rift of New Mexico, may correspond to incipient foundation of a new plate boundary. Others, like the subtle, broad uplifts and subsidences in the nominally stable cratonic interiors, are much more puzzling. Such motions often appear estranged, if not divorced, from accepted plate-tectonic processes. Postglacial rebound, a well-known phenomenon in portions of North America and Europe, also appears to be an inadequate explanation for many observations. Understanding contemporary motions of plate interiors is often hindered by the paucity and uncertain accuracy of relevant geophysical and geodetic observations. Yet intraplate tectonics constitutes more than a scientific enigma. Even seemingly slow vertical motions may threaten river courses or seafront properties on socially relevant time scales, and the subtle strain accumulating elsewhere may portend future earthquakes or volcanoes in the least predictable places.

  2. Effects of mill stream flours technological quality on fermentative activity of baker's yeast Saccharomyces cerevisiae

    Directory of Open Access Journals (Sweden)

    Mirić Katarina V.

    2008-01-01

    Full Text Available This work in concerned with the interdependence between technological quality of mill stream flours and fermentative activity of baker's yeast Saccharomyces cerevisiae. Each mill stream flour has its own specific properties, determined by the particle size, technological phase of its formation and part of the wheat kernel it consists of. Biochemical complexity of dough during examination of fermentative activity of baker's yeast confirmed the influence of a number of physical and biochemical flour properties, such as ash content, wet gluten content, rheological flour properties, phytic acid content and amylograph peak viscosity. Abudance of significant flour characteristic, their interaction and different behavior in the presence of the yeast, showed diversity and variation of result within the same category of the mill stream flour.

  3. Improving Physical Activity and Health with Information Technology

    OpenAIRE

    Koskivaara, Eija

    2014-01-01

    Part 2: Digital Society; International audience; Physical inactivity and overweight/obesity kill 6 million people yearly [1]. Regular physical activity (PA) such as walking, cycling, or participating in sports has significant benefits for health and weight-loss maintenance. It reduces of the risk of diseases, e.g. diabetes, depression, or helps weight controlling. This one year case study explores how daily monitoring of objective PA and weight effects on body mass index (BMI) -value when the...

  4. Developing a voltage-stability-constrained security assessment system part II : Structure and function design and technology used

    OpenAIRE

    Ni, YX; Wu, FF; Shi, LB; Zhou, HF; Tam, PTC; Chang, NC; Su, JF; Du, ZB

    2005-01-01

    This is the second part in a two-part paper on the development of a voltage stability constrained security assessment system (VSC-SAS). In this part, overall VSC-SAS structure and function design and technology used will be presented. The system is expected to be used in both on-line and off-line modes. In on-line mode, on-line SCADA/EMS data will be used for VSC-SAS use; while in off-line mode (usually day-ahead calculation), historical data can be used for VSC-SAS. Both results (i.e. system...

  5. A Part of Wine-making Scientific&Technological Exchange History Between China and Foreign Countries:FANG Xinfang's Academic Activities in His Study Period Abroad%中外酿酒科技交流史的一页——方心芳留学时期的活动与学术

    Institute of Scientific and Technical Information of China (English)

    朱更勇; 郭旭

    2015-01-01

    1935—1937年间,方心芳留学欧洲.在出国留学前,方心芳在传统发酵产品研究方面已有所成就.在国外的这段时间里,方心芳与外国专家交流高粱酒改良方法;四处访学,增广学识;撰述不辍,促进交流;搜集菌种,互通有无;关心社会,心系祖国.国外留学是其学术生涯中承前启后的关键阶段,是中外酿酒科技交流史上值得书写的一页.%FANG Xinfang studied in Europe in 1935-1937. Before he studied abroad, FANG Xinfang had made great accomplishments in the field of traditional fermentation products. During his stay in Europe, he exchanged sorghum liquor improvement methods with foreign experts, visited famous wine-making experts, wrote academic papers, collected bacteria strains, and cared a lot about his homeland. His studying period abroad is a key stage in his academic career, also a notable part of wine-making scientific&technological exchange history.(Trans. by YUE Yang)

  6. Antioxidant activity of bulbs and aerial parts of Crocus caspius, impact of extraction methods.

    Science.gov (United States)

    Khalili, Masomeh; Fathi, Hamed; Ebrahimzadeh, Mohammad Ali

    2016-05-01

    Crocus genus (Iridaceae) is comprises approximately 80 species. In this study in vitro antioxidant activities of extracts from C. caspius bulbs and aerial parts were investigated. Ultrasonically assisted extraction (US), percolation method (PE) and polyphenolic fraction (PP) were used. Antioxidant activities were evaluated with five different tests. Aerial parts US extract with high levels of phenol and flavonoids were the most potent extract in DPPH radical scavenging than others. Aerial parts PE extract had shown very potent reducing power, which was so better than other extracts (p<0.01). Aerial parts PP fraction showed very good Fe(2+) chelating ability. Aerial parts US extract were the most potent extract in scavenging of H(2)O(2). Bulb PP fraction with IC(50)=22.8±0.7 µg ml(-1) was the most potent fraction in nitric oxide scavenging. The results improved high levels of antioxidant activities of C. caspius bulbs and aerial parts in all tested models.

  7. SERS-active nanoparticle aggregate technology for tags and seals

    Energy Technology Data Exchange (ETDEWEB)

    Brown, Leif O [Los Alamos National Laboratory; Montoya, Velma M [Los Alamos National Laboratory; Havrilla, George J [Los Alamos National Laboratory; Doorn, Stephen K [Los Alamos National Laboratory

    2010-06-03

    In this paper, we describe our efforts to create a modern tagging and sealing technology for international safeguards application. Our passive tagging methods are based on SANAs (SERS-Active Nanoparticle Aggregates; SERS: Surface Enhanced Raman Scattering). These SANAs offer robust spectral barcoding capability in an inexpensive tag/seal, with the possibility of rapid in-field verification that requires no human input. At INMM 2009, we introduced SANAs, and showed approaches to integrating our technology with tags under development at Sandia National Laboratories (SNL). Here, we will focus on recent LANL development work, as well as adding additional dimensionality to the barcoding technique. The field of international safeguards employs a broad array of tags, seals, and tamper-indicating devices to assist with identification, tracking, and verification of components and materials. These devices each have unique strengths suited to specific applications, and span a range of technologies from passive metal cup seals and adhesive seals to active, remotely monitored fiber optic seals. Regardless of the technology employed, essential characteristics center around security, environmental and temporal stability, ease of use, and the ability to provide confidence to all parties. Here, we present a new inexpensive tagging technology that will deliver these attributes, while forming the basis of either a new seal, or as a secure layer added to many existing devices. Our approach uses the Surface Enhanced Raman Scattering (SERS) response from SANAs (SERS-Active Nanoparticle Aggregates, Figure 1) to provide a unique identifier or signature for tagging applications. SANAs are formed from gold or silver nanoparticles in the 40-80 nm size range. A chemical dye is installed on the nanoparticle surface, and the nanoparticles are then aggregated into ensembles of {approx}100 to 500 nm diameter, prior to being coated with silica. The silica shell protects the finished SANA from

  8. Recommendations for Technology Development and Validation Activities in Support of the Origins Program

    Science.gov (United States)

    Capps, Richard W. (Editor)

    1996-01-01

    The Office of Space Science (OSS) has initiated mission concept studies and associated technology roadmapping activities for future large space optical systems. The scientific motivation for these systems is the study of the origins of galaxies, stars, planetary systems and, ultimately, life. Collectively, these studies are part of the 'Astronomical Search for Origins and Planetary Systems Program' or 'Origins Program'. A series of at least three science missions and associated technology validation flights is currently envisioned in the time frame between the year 1999 and approximately 2020. These would be the Space Interferometry Mission (SIM), a 10-meter baseline Michelson stellar interferometer; the Next Generation Space Telescope (NGST), a space-based infrared optimized telescope with aperture diameter larger than four meters; and the Terrestrial Planet Finder (TPF), an 80-meter baseline-nulling Michelson interferometer described in the Exploration of Neighboring Planetary Systems (ExNPS) Study. While all of these missions include significant technological challenges, preliminary studies indicate that the technological requirements are achievable. However, immediate and aggressive technology development is needed. The Office of Space Access and Technology (OSAT) is the primary sponsor of NASA-unique technology for missions such as the Origins series. For some time, the OSAT Space Technology Program has been developing technologies for large space optical systems, including both interferometers and large-aperture telescopes. In addition, technology investments have been made by other NASA programs, including OSS; other government agencies, particularly the Department of Defense; and by the aerospace industrial community. This basis of prior technology investment provides much of the rationale for confidence in the feasibility of the advanced Origins missions. In response to the enhanced interest of both the user community and senior NASA management in large

  9. Promoting Physical Activity through Hand-Held Computer Technology

    Science.gov (United States)

    King, Abby C.; Ahn, David K.; Oliveira, Brian M.; Atienza, Audie A.; Castro, Cynthia M.; Gardner, Christopher D.

    2009-01-01

    Background Efforts to achieve population-wide increases in walking and similar moderate-intensity physical activities potentially can be enhanced through relevant applications of state-of-the-art interactive communication technologies. Yet few systematic efforts to evaluate the efficacy of hand-held computers and similar devices for enhancing physical activity levels have occurred. The purpose of this first-generation study was to evaluate the efficacy of a hand-held computer (i.e., personal digital assistant [PDA]) for increasing moderate intensity or more vigorous (MOD+) physical activity levels over 8 weeks in mid-life and older adults relative to a standard information control arm. Design Randomized, controlled 8-week experiment. Data were collected in 2005 and analyzed in 2006-2007. Setting/Participants Community-based study of 37 healthy, initially underactive adults aged 50 years and older who were randomized and completed the 8-week study (intervention=19, control=18). Intervention Participants received an instructional session and a PDA programmed to monitor their physical activity levels twice per day and provide daily and weekly individualized feedback, goal setting, and support. Controls received standard, age-appropriate written physical activity educational materials. Main Outcome Measure Physical activity was assessed via the Community Healthy Activities Model Program for Seniors (CHAMPS) questionnaire at baseline and 8 weeks. Results Relative to controls, intervention participants reported significantly greater 8-week mean estimated caloric expenditure levels and minutes per week in MOD+ activity (p<0.04). Satisfaction with the PDA was reasonably high in this largely PDA-naive sample. Conclusions Results from this first-generation study indicate that hand-held computers may be effective tools for increasing initial physical activity levels among underactive adults. PMID:18201644

  10. Promoting physical activity through hand-held computer technology.

    Science.gov (United States)

    King, Abby C; Ahn, David K; Oliveira, Brian M; Atienza, Audie A; Castro, Cynthia M; Gardner, Christopher D

    2008-02-01

    Efforts to achieve population-wide increases in walking and similar moderate-intensity physical activities potentially can be enhanced through relevant applications of state-of-the-art interactive communication technologies. Yet few systematic efforts to evaluate the efficacy of hand-held computers and similar devices for enhancing physical activity levels have occurred. The purpose of this first-generation study was to evaluate the efficacy of a hand-held computer (i.e., personal digital assistant [PDA]) for increasing moderate intensity or more vigorous (MOD+) physical activity levels over 8 weeks in mid-life and older adults relative to a standard information control arm. Randomized, controlled 8-week experiment. Data were collected in 2005 and analyzed in 2006-2007. Community-based study of 37 healthy, initially underactive adults aged 50 years and older who were randomized and completed the 8-week study (intervention=19, control=18). Participants received an instructional session and a PDA programmed to monitor their physical activity levels twice per day and provide daily and weekly individualized feedback, goal setting, and support. Controls received standard, age-appropriate written physical activity educational materials. Physical activity was assessed via the Community Healthy Activities Model Program for Seniors (CHAMPS) questionnaire at baseline and 8 weeks. Relative to controls, intervention participants reported significantly greater 8-week mean estimated caloric expenditure levels and minutes per week in MOD+ activity (pfirst-generation study indicate that hand-held computers may be effective tools for increasing initial physical activity levels among underactive adults.

  11. Y-12 Plant decontamination and decommissioning technology logic diagram for Building 9201-4. Volume 3: Technology evaluation data sheets; Part A: Characterization, dismantlement

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-09-01

    The Y-12 Plant Decontamination and Decommissioning Technology Logic Diagram for Building 9201-4 (TLD) was developed to provide a decision-support tool that relates decontamination and decommissioning (D and D) problems at Bldg. 9201-4 to potential technologies that can remediate these problems. The TLD uses information from the Strategic Roadmap for the Oak Ridge Reservation, the Oak Ridge K-25 Site Technology Logic Diagram, the Oak Ridge National Laboratory Technology Logic Diagram, and a previous Hanford logic diagram. This TLD identifies the research, development, demonstration, testing, and evaluation needed for sufficient development of these technologies to allow for technology transfer and application to D and D and waste management (WM) activities. It is essential that follow-on engineering studies be conducted to build on the output of this project. These studies will begin by selecting the most promising technologies identified in the TLD and by finding an optimum mix of technologies that will provide a socially acceptable balance between cost and risk. This report consists of the characterization and dismantlement data sheets.

  12. Antioxidant activity of methanol extracts of different parts of Lantana camara

    Institute of Scientific and Technical Information of China (English)

    Badakhshan Mahdi-Pour; Subramanion L Jothy; Lachimanan Yoga Latha; Yeng Chen; Sreenivasan Sasidharan

    2012-01-01

    Objective: To investigate the antioxidant activity of methanolic extracts of Lantana camara (L. camara) various parts and the determination of their total phenolics content. Methods:The extract was screened for possible antioxidant activities by free radical scavenging activity(DPPH), xanthine oxidase inhibition activity and Griess-Ilosvay method. Results:The results showed that all the plant parts possessed antioxidant properties including radical scavenging, xanthine oxidase inhibition and nitrites scavenging activities. The antioxidative activities were correlated with the total phenol. The leaves extract of L. camara was more effective than that of other parts. Conclusions: This study suggests that L. camara extracts exhibit great potential for antioxidant activity and may be useful for their nutritional and medicinal functions.

  13. Antioxidative activity of non-edible parts of selected tropical fruits and its application to cookies

    OpenAIRE

    松坂, 裕子; Yuuko, MATSUSAKA; 藤女子大学人間生活学部食物栄養学科

    2011-01-01

    Total polyphenol content and antioxidative activity of the non-edible parts;i.e., seeds and peel, of three tropical fruits (mango, avocado and starfruit)and apple were analyzed and compared with those of the edible parts. Antioxidative activity was evaluated based on the ability of the fruit extracts (seed, peel and pulp)to scavenge the DPPH radical. The non-edible parts of the tropical fruits tested were found to have significant antioxidant activities. Among them, the DPPH radical scavengin...

  14. Taking Part in the Dance: Technology Teachers Interacting with Communities of Practice

    Science.gov (United States)

    Slatter, Wendy; France, Bev

    2011-01-01

    This research investigated how secondary school technology teachers planned and implemented units that enabled students to access authentic technological practice through their contact with a community of practice (CoP). It was found that when teachers plan to access a community of practice for their students a complex dance-style relationship…

  15. Using Digital Technology to See Angles from Different Angles. Part 2: Openings and Turns

    Science.gov (United States)

    Host, Erin; Baynham, Emily; McMaster, Heather

    2015-01-01

    Ever wondered how to use technology to teach angles? This article follows on from an earlier article published last year, providing a range of ideas for integrating technology and concrete materials with the teaching of angle concepts. The authors also provide a comprehensive list of free online games and learning objects that can be used to teach…

  16. A History of Instructional Design and Technology: Part I: A History of Instructional Media.

    Science.gov (United States)

    Reiser, Robert A.

    2001-01-01

    Discusses the history of the field of instructional design and technology in the United States. Includes a definition, major features, rational for using instructional design and technology as the label for the field, history of instructional media from 1900 to the present, effects media have had on instructional practices, and the effect…

  17. JPRS Report Science & Technology Japan STA 1988 White Paper Part 2.

    Science.gov (United States)

    1989-12-13

    crops, including potatoes and tangerines , in March 1988 at the national research institutes and JAERI. The irradiation of food has come to be...advanced technology seeds cul- tivation research consignment costs 1,253 1,242 100 Seed cultivation by advanced bio- 100 technology...Laboratory, Tsukuba Medicinal Plant Cultivation Laboratory Agricultural Research Center Agricultural Biological Resources Research Institute

  18. CRISPR Technology for Genome Activation and Repression in Mammalian Cells.

    Science.gov (United States)

    Du, Dan; Qi, Lei S

    2016-01-04

    Targeted modulation of transcription is necessary for understanding complex gene networks and has great potential for medical and industrial applications. CRISPR is emerging as a powerful system for targeted genome activation and repression, in addition to its use in genome editing. This protocol describes how to design, construct, and experimentally validate the function of sequence-specific single guide RNAs (sgRNAs) for sequence-specific repression (CRISPRi) or activation (CRISPRa) of transcription in mammalian cells. In this technology, the CRISPR-associated protein Cas9 is catalytically deactivated (dCas9) to provide a general platform for RNA-guided DNA targeting of any locus in the genome. Fusion of dCas9 to effector domains with distinct regulatory functions enables stable and efficient transcriptional repression or activation in mammalian cells. Delivery of multiple sgRNAs further enables activation or repression of multiple genes. By using scaffold RNAs (scRNAs), different effectors can be recruited to different genes for simultaneous activation of some and repression of others. The CRISPRi and CRISPRa methods provide powerful tools for sequence-specific control of gene expression on a genome-wide scale to aid understanding gene functions and for engineering genetic regulatory systems.

  19. Cost/benefit analysis of advanced materials technology candidates for the 1980's, part 2

    Science.gov (United States)

    Dennis, R. E.; Maertins, H. F.

    1980-01-01

    Cost/benefit analyses to evaluate advanced material technologies projects considered for general aviation and turboprop commuter aircraft through estimated life-cycle costs, direct operating costs, and development costs are discussed. Specifically addressed is the selection of technologies to be evaluated; development of property goals; assessment of candidate technologies on typical engines and aircraft; sensitivity analysis of the changes in property goals on performance and economics, cost, and risk analysis for each technology; and ranking of each technology by relative value. The cost/benefit analysis was applied to a domestic, nonrevenue producing, business-type jet aircraft configured with two TFE731-3 turbofan engines, and to a domestic, nonrevenue producing, business type turboprop aircraft configured with two TPE331-10 turboprop engines. In addition, a cost/benefit analysis was applied to a commercial turboprop aircraft configured with a growth version of the TPE331-10.

  20. The development of enabling technologies for producing active interrogation beams

    Energy Technology Data Exchange (ETDEWEB)

    Kwan, Thomas J. T.; Morgado, Richard E.; Wang, Tai-Sen F. [Los Alamos National Laboratory, Los Alamos, New Mexico 87544 (United States); Vodolaga, B.; Terekhin, V. [All-Russia Scientific Research Institute of Technical Physics, Snezhinsk (Russian Federation); Onischenko, L. M.; Vorozhtsov, S. B.; Samsonov, E. V.; Vorozhtsov, A. S.; Alenitsky, Yu. G.; Perpelkin, E. E.; Glazov, A. A.; Novikov, D. L. [Joint Institute of Nuclear Research, Joliot-Curie 6, 141980 Dubna, Moscow Region (Russian Federation); Parkhomchuk, V.; Reva, V.; Vostrikov, V. [Budker Institute of Nuclear Physics (BINP), Av. Lavrent' ev, 630090 Novosibirsk (Russian Federation); Mashinin, V. A.; Fedotov, S. N.; Minayev, S. A. [Research Firm IFI, Moscow (Russian Federation)

    2010-10-15

    A U.S./Russian collaboration of accelerator scientists was directed to the development of high averaged-current ({approx}1 mA) and high-quality (emittance {approx}15 {pi}mm mrad; energy spread {approx}0.1%) 1.75 MeV proton beams to produce active interrogation beams that could be applied to counterterrorism. Several accelerator technologies were investigated. These included an electrostatic tandem accelerator of novel design, a compact cyclotron, and a storage ring with energy compensation and electron cooling. Production targets capable of withstanding the beam power levels were designed, fabricated, and tested. The cyclotron/storage-ring system was theoretically studied and computationally designed, and the electrostatic vacuum tandem accelerator at BINP was demonstrated for its potential in active interrogation of explosives and special nuclear materials.

  1. Development of HANARO Activation Analysis System and Utilization Technology

    Energy Technology Data Exchange (ETDEWEB)

    Chung, Y. S.; Moon, J. H.; Cho, H. J. (and others)

    2007-06-15

    1. Establishment of evaluation system using a data for a neutron activation analysis : Improvement of NAA measurement system and its identification, Development of combined data evaluation code of NAA/PGAA, International technical cooperation project 2. Development of technique for a industrial application of high precision gamma nuclide spectroscopic analysis : Analytical quality control, Development of industrial application techniques and its identification 3. Industrial application research for a prompt gamma-ray activation analysis : Improvement of Compton suppression counting system (PGAA), Development of applied technology using a PGAA system 4. Establishment of NAA user supporting system and KOLAS management : Development and validation of KOLAS/ISO accreditation testing and identification method, Cooperation researches for a industrial application, Establishment of integrated user analytical supporting system, Accomplishment of sample irradiation facility.

  2. [Mathematics, natural sciences and technology--parts of the encyclopedia Die Kultur der Gegenwart (The culture of today)].

    Science.gov (United States)

    Tobies, Renate

    2008-03-01

    The paper explores the trend of the early 20th century to consolidate mathematics, natural sciences, medicine and technology under the umbrella of one integrative culture--a tendency which contrasts with the increasing mainstream trend of separating the humanities from the natural sciences. The unifying umbrella was framed by the great encyclopedia Die Kultur der Gegenwart which was published by B. G. Teubner from 1905 to 1925 and was planned to run up to 62 volumes. We analyze the quantitative rate of the parts devoted to the humanities, the natural sciences and technology, respectively, the degree to which these parts were completed in this encyclopedia. In particular, we investigate the role of mathematicians and their reasons to find a classification for the mathematical, natural scientific and engineering parts of culture as well as their reasons, to win Nobel prize winners and other famous scientists to become co-editors and authors. We examine the published volumes in the fields of mathematics, chemistry, physics, astronomy and technology in order to show what type of publication--professional or popular--was intended. Furthermore, we illuminate how the educational reform of mathematics, natural sciences and technology of this period--which included a reform of girls' and women's education--was reflected in the encyclopedia Die Kultur der Gegenwart.

  3. Local and Global Mechanical Behavior and Microstructure of Ti6Al4V Parts Built Using Electron Beam Melting Technology

    Science.gov (United States)

    Ladani, Leila

    2015-09-01

    Laser and electron beam melting are prime technologies in metallic powder bed additive manufacturing in which parts are built layer by layer using high energy source. The technology is at a level where each layer can be as thin as 50 µm. Melting and solidification of each powder layer is typically accompanied by some subsurface melting to assure adherence and fusion of layers. In addition to anisotropic mechanical behavior of material caused by layering phenomenon, it is expected that the local mechanical behavior and microstructure vary throughout each build. In this manuscript, local and global mechanical behavior of Ti6Al4V parts produced using electron beam melting technology is investigated using bulk scale mechanical testing and nanoindentation. Parts fabricated in different build orientation were tested at different strain rates at a large scale. The experiment showed that strength is minimal perpendicular to the build plate. Additionally, material exhibited different local mechanical properties relative to distance from base plate. Investigation of the microstructure indicated very distinguished variations in the grain size and alpha and beta phase formation of material in different locations of part relative to build plate. Strength reduction in perpendicular direction is examined and explained through understanding of the microstructure and plastic deformation mechanism in α phase and prior β grains.

  4. Strategy Planning of Technology Development for High Speed Railways : Electrical Parts

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Y. J.; Kim, K. H.; Rim, G. H.; Ha, H. D.; Park, K. Y.; Lee, J. D.; Kang, D. H. [Korea Electrotechnology Research Institute (Korea, Republic of)

    1996-11-01

    At the beginning of 1996, Government has set up the Technology Development Program for High Speed Railways as a national project. Accordingly, the detailed action planning has been established with the collaboration works between Ministry of Construction and Transport and Ministry of Commerce and Trade. On the other hand, the current technology status of domestic manufacturer and many related organizations in Korea only reveals the lack of capabilities in producing the high speed trains. Without the technology transfer programs from the advanced foreign manufacturer (GEC-Alsthom), the domestic manufacturers could not produce HSR. Korea Electrotechnology Research Institute has steered the study to integrate the domestic engineering and technology units specialized in the diversified areas by formulating the feasible collaboration structure between KERI and many organizations on the technology basis. The long term action planning both with the strategic guide and on the technology basis shall be the key function to upgrade the current technology status feasibly for development of the advanced high speed train of 350 km/h. (author). refs., figs., tabs.

  5. Converging technologies and de-perimeterisation: towards risky active insulation

    NARCIS (Netherlands)

    Pieters, Wolter

    In converging technologies (Roco and Bainbridge, 2003), boundaries between previously separated technologies become permeable. A similar process is also taking place within information technology. In what is called de-perimeterisation (Jericho Forum, 2005), the boundaries of the information

  6. Converging technologies and de-perimeterisation: towards risky active insulation

    NARCIS (Netherlands)

    Pieters, W.

    2009-01-01

    In converging technologies (Roco and Bainbridge, 2003), boundaries between previously separated technologies become permeable. A similar process is also taking place within information technology. In what is called de-perimeterisation (Jericho Forum, 2005), the boundaries of the information infrastr

  7. 78 FR 22251 - Agency Information Collection Activities; Comment Request; IDEA Part B State Performance Plan...

    Science.gov (United States)

    2013-04-15

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF EDUCATION Agency Information Collection Activities; Comment Request; IDEA Part B State Performance Plan (SPP) and... in response to this notice will be considered public records. Title of Collection: IDEA Part B...

  8. 78 FR 22253 - Agency Information Collection Activities; Comment Request; IDEA Part C State Performance Plan...

    Science.gov (United States)

    2013-04-15

    ... From the Federal Register Online via the Government Publishing Office ] DEPARTMENT OF EDUCATION Agency Information Collection Activities; Comment Request; IDEA Part C State Performance Plan (SPP) and... in response to this notice will be considered public records. Title of Collection: IDEA Part C...

  9. Maximum length sequence and Bessel diffusers using active technologies

    Science.gov (United States)

    Cox, Trevor J.; Avis, Mark R.; Xiao, Lejun

    2006-02-01

    Active technologies can enable room acoustic diffusers to operate over a wider bandwidth than passive devices, by extending the bass response. Active impedance control can be used to generate surface impedance distributions which cause wavefront dispersion, as opposed to the more normal absorptive or pressure-cancelling target functions. This paper details the development of two new types of active diffusers which are difficult, if not impossible, to make as passive wide-band structures. The first type is a maximum length sequence diffuser where the well depths are designed to be frequency dependent to avoid the critical frequencies present in the passive device, and so achieve performance over a finite-bandwidth. The second is a Bessel diffuser, which exploits concepts developed for transducer arrays to form a hybrid absorber-diffuser. Details of the designs are given, and measurements of scattering and impedance used to show that the active diffusers are operating correctly over a bandwidth of about 100 Hz to 1.1 kHz. Boundary element method simulation is used to show how more application-realistic arrays of these devices would behave.

  10. [The contribution of Web 2.0 technologies to the empowerment of active patients].

    Science.gov (United States)

    Oliver-Mora, Martí; Iñiguez-Rueda, Lupicinio

    2017-03-01

    The Spanish health system has recently been marked by the emergence of more active patients who are characterized as being better informed about their disease, having a more participatory attitude, wanting to have a greater influence in making decisions about their health and asserting their rights as patients. Therefore, this article aims to report on how the introduction of Web 2.0 technologies can contribute to the empowering of more active patients. To achieve this, 14 semi-structured interviews were conducted with patients and representatives of patient associations who have used Web 2.0 technologies to interact with other patients or to communicate with health professionals. From the results obtained, we highlight the fact that Web 2.0 technologies provide greater access to health-related information, improve communication between patients and health professionals, and enable the creation of new spaces of interaction among patients. All of the facts above contribute to the formation of a more active role on the part of patients.

  11. Laser-Hybrid welding, an innovative technology to join automotive body parts

    Science.gov (United States)

    Sieben, Manuel; Brunnecker, Frank

    The design of Tail lamps has been changed dramatically since cars built. At modern lamps, the lenses are absolutely transparent and allow a direct view onto the weld seam. Conventional welding technologies, such as vibration and hot plate welding cannot compete with this demand. Focused on this targeted application, LPKF Laser & Electronics AG has developed in cooperation with the Bavarian Laser Centre a unique Laser welding technology called hybrid welding.

  12. Environmental Aspects Of The Green Surface Plastic Deformation Technology Of Car Parts

    Science.gov (United States)

    Grigoriev, S. N.; Bobrovskij, N. M.; Bobrovskij, I. N.; Melnikov, P. A.; Lukyanov, A. A.

    2017-01-01

    Foreign and domestic experience in development of dry processing technologies are considered. The results of the introduction of dry processing technologies (cutting, boring, milling, drilling) on the industrial companies in Germany are given. The negative impact on the environment and human health is shown. The possible ways of leakage of lubricoolant components in the atmosphere and soil are considered. Lubricoolants are considered as a required permanent component. Three main tasks for lubricoolant: cooling, lubricating and chip disposal are discribed.

  13. DESIGN TECHNOLOGY FOR INJECTION MOLD PARTING SURFACE BASED ON CASES AND KNOWLEDGE

    Institute of Scientific and Technical Information of China (English)

    Yu Tongmin; Li Guanhua; Li Youmin; Lan Jian

    2005-01-01

    On the basis of the comprehensive analysis about the automatic generation of the injection mold parting surface, the parting surface design method which introduces knowledge and casebased reasoning (CBR) into the computer-aided design is described by combining with the actual characteristic in injection mold design, and the design process of case-based reasoning method is also given. A case library including the information of parting surface is built with the index of main shape features. The automatic design of the mold parting surface is realized combined with the forward-reasoning method and the similarity solution procedure. The rule knowledge library is also founded including the knowledge, principles and experiences for parting surface design. An example is used to show the validity of the method, and the quality and the efficiency of the mold design are improved.

  14. Performance of active vibration control technology: the ACTEX flight experiments

    Science.gov (United States)

    Nye, T. W.; Manning, R. A.; Qassim, K.

    1999-12-01

    This paper discusses the development and results of two intelligent structures space-flight experiments, each of which could affect architecture designs of future spacecraft. The first, the advanced controls technology experiment I (ACTEX I), is a variable stiffness tripod structure riding as a secondary payload on a classified spacecraft. It has been operating well past its expected life since becoming operational in 1996. Over 60 on-orbit experiments have been run on the ACTEX I flight experiment. These experiments form the basis for in-space controller design problems and for concluding lifetime/reliability data on the active control components. Transfer functions taken during the life of ACTEX I have shown consistent predictability and stability in structural behavior, including consistency with those measurements taken on the ground prior to a three year storage period and the launch event. ACTEX I can change its modal characteristics by employing its dynamic change mechanism that varies preloads in portions of its structure. Active control experiments have demonstrated maximum vibration reductions of 29 dB and 16 dB in the first two variable modes of the system, while operating over a remarkable on-orbit temperature range of -80 °C to 129 °C. The second experiment, ACTEX II, was successfully designed, ground-tested, and integrated on an experimental Department of Defense satellite prior to its loss during a launch vehicle failure in 1995. ACTEX II also had variable modal behavior by virtue of a two-axis gimbal and added challenges of structural flexibility by being a large deployable appendage. Although the loss of ACTEX II did not provide space environment experience, ground testing resulted in space qualifying the hardware and demonstrated 21 dB, 14 dB, and 8 dB reductions in amplitude of the first three primary structural modes. ACTEX II could use either active and/or passive techniques to affect vibration suppression. Both experiments trailblazed

  15. Technological Support of Estimating Functional Opportunities of Higher Parts of Central Nervous System in the Individuals with Auditory Deprivation

    Directory of Open Access Journals (Sweden)

    Makarenko M.V.

    2016-10-01

    Full Text Available A new computerized technology of investigating and estimating the individual features of higher parts of the central nervous system in people with auditory deprivation is offered. The essence of the offered technology for investigating and estimating individual functional opportunities of higher parts of the nervous system of an individual with auditory deprivation consists in using the specific sequence of representing the load tests with corresponding criteria of estimating the processed information of different level of complexity, which are applied on hardware devices developed by us. We represented the scales for estimating the parameters of simple and complex sensorimotor reactions, speed qualitative and quantitative indicators of processing information based on the typological properties of the nervous system, such as the functional mobility, strength and balance of basic nervous processes. We suppose that the research using the same tests and criteria of estimating neuro-dynamic properties will increase the opportunity for the analysis of different experimental material and enhance its value

  16. Possibilities of the Technology of Additive Production for Making Complex-Shape Parts and Depositing Functional Coatings from Metallic Powders

    Science.gov (United States)

    Grigor'ev, S. N.; Tarasova, T. V.

    2016-01-01

    The aspects of terminology, definitions and classification in the technology of additive production are considered. The principal possibility of fabrication of complex-shape parts from a refractory cobalt alloy by the method of selective laser melting and deposition of hard and wear-resistant coatings from Ti and SiC powders by coaxial laser surfacing is shown. The technological possibility of microlaser surfacing with lateral resolution about 100 μm in the production of parts from aluminum alloys is considered. The mechanisms of formation of structure in the studied alloys typical for selective laser melting, laser surfacing and microlaser surfacing are determined. The physical and mechanical properties of the alloys are investigated.

  17. TECHNOLOGICAL PROVISION OF ACCURACY AND QUALITY PARAMETERS OF INTRICATE PROFILE PARTS AT HIGH-SPEED MULTI-COORDINATE MACHINING

    Directory of Open Access Journals (Sweden)

    V. K. Sheleg

    2009-01-01

    Full Text Available The paper considers requirements to CAM-systems for provision of high-speed multi-coordinate milling, principles of generation and recommendations on trajectory programming for high-speed machining, influence of vibration and balancing of the technological system on parameters of  the machining accuracy, characteristics of a cutting tool, types of tool coatings that is rather actual for improvement of accuracy and quality of intricate profile parts.

  18. Physical Activity: A Tool for Improving Health (Part 3--Recommended Amounts of Physical Activity for Optimal Health)

    Science.gov (United States)

    Gallaway, Patrick J.; Hongu, Nobuko

    2016-01-01

    By promoting physical activities and incorporating them into their community-based programs, Extension professionals are improving the health of individuals, particularly those with limited resources. This article is the third in a three-part series describing the benefits of physical activity for human health: (1) biological health benefits of…

  19. Technological Innovation, R & D Activities and Innovation System Between Organizations

    Directory of Open Access Journals (Sweden)

    Jonas Pedro Fabris

    2015-08-01

    Full Text Available This theoretical paper aimed to explicit, through the rescue of theoretical assumptions, the innovation, the innovation system, and the research and development (R & D activities. The innovation, especially technological innovation, is now seen as essential in differentiation strategies, competitiveness and growth in a greater number of businesses. Innovation is not only the result of financial investments by companies. For it to exist, it is necessary the existence of innovative capacity that should be present at all stages of the innovation process, and a favorable institutional environment and, increasingly, of specific incentive policies. That is, there are internal and external factors to companies and other institutions involved in the process. Innovation systems were discovered to resolve the variations in the degree of competitiveness of different economies and, above all, in relation to the technological performance and the ability to innovate these economies face the growing importance of international markets for high-tech products. Thus, it was found that successful innovators are not successful just because of their personal qualities and actions but as a result of their interaction with research and innovation systems that inhabit the quality of such systems.

  20. Passive and Active Sensing Technologies for Structural Health Monitoring

    Science.gov (United States)

    Do, Richard

    A combination of passive and active sensing technologies is proposed as a structural health monitoring solution for several applications. Passive sensing is differentiated from active sensing in that with the former, no energy is intentionally imparted into the structure under test; sensors are deployed in a pure detection mode for collecting data mined for structural health monitoring purposes. In this thesis, passive sensing using embedded fiber Bragg grating optical strain gages was used to detect varying degrees of impact damage using two different classes of features drawn from traditional spectral analysis and auto-regressive time series modeling. The two feature classes were compared in detail through receiver operating curve performance analysis. The passive detection problem was then augmented with an active sensing system using ultrasonic guided waves (UGWs). This thesis considered two main challenges associated with UGW SHM including in-situ wave propagation property determination and thermal corruption of data. Regarding determination of wave propagation properties, of which dispersion characteristics are the most important, a new dispersion curve extraction method called sparse wavenumber analysis (SWA) was experimentally validated. Also, because UGWs are extremely sensitive to ambient temperature changes on the structure, it significantly affects the wave propagation properties by causing large errors in the residual error in the processing of the UGWs from an array. This thesis presented a novel method that compensates for uniform temperature change by considering the magnitude and phase of the signal separately and applying a scalable transformation.

  1. NASA'S information technology activities for the 90's

    Science.gov (United States)

    Holcomb, Lee; Erickson, Dan

    1991-01-01

    The Office of Aeronautics, Exploration and Technology (OAET) is completing an extensive assessment of its nearly five hundred million dollars of proposed space technology development work. The budget is divided into four segments which are as follows: (1) the base research and technology program; (2) the Civil Space Technology Initiative (CSTI); (3) the Exploration Technology Program (ETP); and (4) the High Performance Computing Initiative (HPCI). The programs are briefly discussed in the context of Astrotech 21.

  2. Comparison of Exams for Active Learning Technologies vs. Traditional Lectures

    Science.gov (United States)

    Hornstra, Andrew; Djordjevic, Branislav; Dworzecka, Maria

    2017-01-01

    George Mason University has first semester (PHYS-160) and second semester (PHYS-260) physics course which consist of two sections. One is a traditional lecture style format (TRAD) and the other is a newer format which is a take on the ``flipped'' classroom. This newer style is referred to as Active Learning with Technologies (ALT). This course style has been in place for several years and has been studied before within George Mason University for final grade differences. These studies suggested that the ALT sections performed better, but grade weighting consistency, test time, and test content were not strictly controlled. The purpose of this study is to cross-examine the performance of students in these different class formats during Fall 2016 (PHYS-260) and Spring 2015 (PHYS-160) on very nearly identical exams over identical test times while controlling for almost every variable.

  3. A first thermodynamic interpretation of the technology transfer activities

    CERN Document Server

    Ripandelli, S

    2016-01-01

    In the last years new interdisciplinary approaches to economics and social science have been developed. A Thermodynamic approach to socio-economics has brought to a new interdisciplinary scientific field called econophysics. Why thermodynamic? Thermodynamic is a statistical theory for large atomic system under constraints of energy[1] and the economy can be considered a large system governed by complex rules. The present job proposes a new application, starting from econophysic, passing throughout the thermodynamic laws to interpret and to described the Technology Transfer (TT) activities. Using the definition of economy (i.e. economy[dictionary def.] = the process or system by which goods and services are produced, sold, and bought in a country or region) the TT can be considered an important sub-domain of the economy and a transversal new area of the scientific research. The TT is the process of transferring knowledge, that uses the results from the research to produce innovation and to ensure that scientif...

  4. Rotor-Bearing Dynamics Technology Design Guide. Part 4. Cylindrical Roller Bearings

    Science.gov (United States)

    1979-12-01

    ýbluck ,,lb.,mb i Tapered Roller Bearings Roller Beating Stiffness Tapered Roller Bearing Stiffness Turbine Bearings VRoller Bearings Rotordynamics ...input for rotordynamic response programs. The complete stiffness matrix is calculated including centrifugal effects. Considerations such as elastohydro...those parts directly connected with preparation of input for the rotordynamic response programs (Part 1(5) of the revised series) were retained. The

  5. Science and Technology of China Onshore Petroleum Industry Towards 21st Century (Part 4)

    Institute of Scientific and Technical Information of China (English)

    Fu Chengde; Liu Bingyi; Gao Chao

    1996-01-01

    @@ V. Oil/Gas Field Construction and Oil/Gas Storage and Transportation Techniques The surface engineering construction of oil and gas fields in China has made great progress in various respects of technology, such as oil and gas gathering and transferring,water injection, treating technology and equipment for oil,gas and water, automation of oil/gas field, techniques of surface engineering for special oil and gas reservoirs,sulfur-resistant and anti-corrosion techniques for recovery and gathering of sour gas field.

  6. 32 CFR Appendix D to Part 169a - Commercial Activities Management Information System (CAMIS)

    Science.gov (United States)

    2010-07-01

    ... to Part 169a—Commercial Activities Management Information System (CAMIS) Each DoD Component shall... 32 National Defense 1 2010-07-01 2010-07-01 false Commercial Activities Management Information... American Standard Code Information Interchange text file format on a MicroSoft-Disk Operating...

  7. Antimicrobial Activity of Aerial Part Crude Extracts from the Saharan plant Anabasis aretioides

    Directory of Open Access Journals (Sweden)

    A. AMARI

    2015-03-01

    Full Text Available The antimicrobial activity of several crude extracts from the aerial parts of Anabasis aretioides was investigated by the disc diffusion method. The S. aureus, C. albicans and S. cereviceae Bacteria showed good efficiency in bacterial activity with most of the tested extract.

  8. Physical Activity: A Tool for Improving Health (Part 2-Mental Health Benefits)

    Science.gov (United States)

    Gallaway, Patrick J.; Hongu, Nobuko

    2016-01-01

    By promoting physical activities and incorporating them into their community-based programs, Extension professionals are improving the health of individuals, particularly those with limited resources. This article is the second in a three-part series describing the benefits of physical activity for human health: (1) biological health benefits of…

  9. Physical Activity: A Tool for Improving Health (Part 1--Biological Health Benefits)

    Science.gov (United States)

    Gallaway, Patrick J.; Hongu, Nobuko

    2015-01-01

    Extension educators have been promoting and incorporating physical activities into their community-based programs and improving the health of individuals, particularly those with limited resources. This article is the first of a three-part series describing the benefits of physical activity for human health: 1) biological health benefits of…

  10. Parent Perspectives of Participation in Home and Community Activities when Receiving Part C Early Intervention Services

    Science.gov (United States)

    Khetani, Mary A.; Cohn, Ellen S.; Orsmond, Gael I.; Law, Mary C.; Coster, Wendy J.

    2013-01-01

    The authors examined the extent to which parent expectations, perceptions about resource availability and supports, and strategies used to promote participation in home and community activities varied by setting and activity type. Sixteen 90-min semistructured interviews were completed with families receiving Part C early intervention services in…

  11. Physical Activity: A Tool for Improving Health (Part 1--Biological Health Benefits)

    Science.gov (United States)

    Gallaway, Patrick J.; Hongu, Nobuko

    2015-01-01

    Extension educators have been promoting and incorporating physical activities into their community-based programs and improving the health of individuals, particularly those with limited resources. This article is the first of a three-part series describing the benefits of physical activity for human health: 1) biological health benefits of…

  12. Using Scientific Detective Videos to Support the Design of Technology Learning Activities

    Science.gov (United States)

    Yu, Kuang-Chao; Fan, Szu-Chun; Tsai, Fu-Hsing; Chu, Yih-hsien

    2013-01-01

    This article examines the effect of scientific detective video as a vehicle to support the design of technology activities by technology teachers. Ten graduate students, including current and future technology teachers, participated in a required technology graduate course that used scientific detective videos as a pedagogical tool to motivate…

  13. Using Scientific Detective Videos to Support the Design of Technology Learning Activities

    Science.gov (United States)

    Yu, Kuang-Chao; Fan, Szu-Chun; Tsai, Fu-Hsing; Chu, Yih-hsien

    2013-01-01

    This article examines the effect of scientific detective video as a vehicle to support the design of technology activities by technology teachers. Ten graduate students, including current and future technology teachers, participated in a required technology graduate course that used scientific detective videos as a pedagogical tool to motivate…

  14. Active tilting-pad journal bearings supporting flexible rotors: Part I – The hybrid lubrication

    DEFF Research Database (Denmark)

    Salazar, Jorge Andrés González; Santos, Ilmar

    2017-01-01

    This is part I of a twofold paper series, of theoretical and experimental nature, presenting the design and implementation of model-based controllers meant for assisting the hybrid and developing the feedback-controlled lubrication regimes in active tilting-pad journal bearings (active TPJBs......). In part I, the flexible rotor-active TPJB modelling is thoroughly covered by establishing the link between the mechanical and hydraulic systems for all regimes. The hybrid lubrication is herein covered in depth; from a control viewpoint, an integral controller to aid such a regime is designed using model......-based standard tools. Results show slight improvement on the system dynamic performance by using the hybrid lubrication instead of the passive one. Further improvements are pursued with the active lubrication in part II....

  15. Urban Ecology for Secondary Schools, Unit I - Technology and Environmental Pollution, Parts 1 and 2.

    Science.gov (United States)

    New York City Board of Education, Brooklyn, NY. Bureau of Curriculum Development.

    Materials for a course on Urban Ecology are developed in these two documents which represent the first unit - Technology and Environmental Pollution. The entire course consists of seven units dealing with the many aspects of our way of life that produce an effect on, and in turn affected by, the quality of our physical environment. Unit I treats…

  16. Bringing (Century-Old) Technology into the Classroom. Part I: Teaching Mechanics and Thermodynamics with Antiques

    Science.gov (United States)

    Jewett, John W., Jr.

    2015-01-01

    The notion of bringing technology into the classroom has been the subject of many recent presentations at conferences and papers in physics teaching journals. The use of devices such as laptops, smartphones, tablets, and clickers is rising in today's classrooms and laboratories. PhET simulations have been available online for over a decade. A…

  17. Evaluating Colombian SMEs’ technological innovation. Part 2: problems and challenges in innovation

    Directory of Open Access Journals (Sweden)

    Óscar Fernando Castellanos Domínguez

    2010-04-01

    Full Text Available As innovation is an extremely important aspect of economic progress, then new technologies and improving exist-ing ones must be evaluated for establishing the state of innovative culture and the ability to develop technology. The Colombian Innova award for Entrepreneurial Technological Innovation for SMEs was created in 2004, aimed at motivating technological and innovative development in this type of company. It also represents an important state initiative for promoting entrepreneurial innovation, providing a valuable source of information for establishing mechanisms for producing innovation in companies and gauging the current state of Colombian SMEs regarding innovation. This article outlines the structure of the award value chain, following-up and analysing the award’s results, understanding how it is awarded and identifying the actors involved in it. Analysing the award value chain led to identifying the lack of coordination between the National Innovation System (NIS and companies and establishing participants and award-winners’ geographical and sector distribution (contrasts being found between cities such as Bogotá, Medellín and Cali. The characteristics of processes leading to promoting innovation in participating companies (in most cases developing their innovative products or processes in completely organisationally endog-enous contexts were thus identified. These results (providing valuable information for strengthening the award also provided important input for strengthening strategies for promoting innovation in Colombian SMEs

  18. A BIBLIOGRAPHY ON INFORMATION SCIENCE AND TECHNOLOGY FOR 1965. PART 4

    Science.gov (United States)

    This is the final segment of a bibliography of 1965 literature on information science and technology. With the addition in this segment of 407 entries, the total number of references is 2157. The report includes journal articles, conference papers, technical reports, monographs, theses, and some patent disclosures.

  19. Preservice Science Teachers' Field Experiences with Educational Technologies as Part of Portfolio Development: A Turkish Perspective

    Science.gov (United States)

    Korkmaz, Hunkar; Gucum, Berna; Hakverdi, Meral

    2006-01-01

    The purpose of this study is to assess the usage of educational technology of pre-service science teachers in their field experiences. This study was carried out on 45 pre-service science teachers taking School Experience and Practice Teaching courses at Hacettepe University in Turkey. The data were obtained from the evaluation of pre-service…

  20. Assisted reproductive technologies are an integrated part of national strategies addressing demographic and reproductive challenges

    DEFF Research Database (Denmark)

    Ziebe, Søren; Devroey, Paul; Jensen, Tina Kold

    2012-01-01

    The decline in the total fertility rate in the latter half of the 20th century in many European countries is becoming increasingly important in determining the demographic composition of Europe and its individual member states. This review focuses on discussion surrounding how assisted reproductive...... technology (ART) can impact declining fertility rates....

  1. Maldistribution in air-water heat pump evaporators. Part 2: Economic analysis of counteracting technologies

    DEFF Research Database (Denmark)

    Mader, Gunda; Palm, Björn; Elmegaard, Brian

    2015-01-01

    In this study a methodology is applied to quantify the effect of evaporator maldistributionon operating costs of airewater heat pumps. The approach is used to investigate the cost-effectivenessof two technologies enabling to counteract maldistribution: a flash gasbypass setup and the individual...

  2. Solid-state microwave switches: Circuitry, manufacturing technologies and development trends. Review (Part 2)

    OpenAIRE

    Berezniak, Anatolii; Korotkov, Alexander S.

    2013-01-01

    This paper presents an overview of the process and design capabilities of state-of-the-art in the field of microwave solid state switches. The paper describes types of solid state switches, switch specifications, a review of technological advances in this area. The overview results indicate that AlGaN/GaN MMICs including solid state switches are realizable.

  3. Solid-state microwave switches: circuitry, manufacturing technologies and development trends. Review (Part 1)

    OpenAIRE

    Berezniak, Anatolii; Korotkov, Alexander S.

    2013-01-01

    This paper presents an overview of the process and design capabilities of state-of-the-art in the field of microwave solid state switches. The paper describes types of solid state switches, switch specifications, a review of technological advances in this area. The overview results indicate that AlGaN/GaN MMICs including solid state switches are realizable.

  4. Agricultural Science and Technology Teachers' Perceptions of iPod and Mp3 Technology Integration into Curricular and Cocurricular Activities

    Science.gov (United States)

    Murphrey, Theresa Pesl; Miller, Kimberly A.; Roberts, T. Grady

    2009-01-01

    The purpose of this study was to describe agricultural science and technology teachers' reaction to iPod and mp3 technology use and potential use in both curricular and cocurricular activities. A total of 112 unique respondents provided written responses to open-ended questions. Study findings reveal that agricultural science and technology…

  5. 40 CFR Table 10 to Part 455 - List of Appropriate Pollution Control Technologies

    Science.gov (United States)

    2010-07-01

    ... Benzoic acid Activated Carbon. Benzoic acid 9101 Benzoic acid Activated Carbon. Benzyl diethyl ((2,6... Carbon. Copper (metallic) 22501 Metallic Precipitation. Copper ammonium carbonate 22703 Metallic Precipitation. Copper carbonate 22901 Metallic Precipitation. Copper hydroxide 23401 Metallic Precipitation...

  6. Innovation in health care technology: is it part of the problem or part of the solution? eHealth gives the answer.

    Science.gov (United States)

    Colas, Javier; Guillen, Alejandra; Moreno, Rafael

    2010-01-01

    There is no doubt that the contribution of the Health Care Technologies to the tremendous evolution on Medicine since mid XX century has been one of its most important pillars. At the same time the innovation has been sometimes accused of been the root of the increase in the Health Care expenditure to support the Health of the society. Actually, when the Health Care Systems are focusing not only on the critical processes but on the continuum of the disease, the application of innovation to the chronic diseases and, more specifically, in the Cardiovascular ones (specially the Cardiac Insufficiency), represents a great challenge for care givers, patients and the Health Care Systems as their treatment requires continuous medical care and patient self management. The key for establishing this continuity of care in an efficient way is based in the concept of "Anticipation". This is the only way to avoid the burden of the continuous re-hospitalizations of this kind of patients. The engagement of patients in the adoption of healthy lifestyles with a positive impact in the progression of their diseases is fundamental to avoid the appearance of chronic complications or co-morbidities. Only with these assumptions the Innovation on Health Care Technologies will become part of the solution of the sustainability of the Health Care expenditure for the society. This paper present the keys for making the innovation efficient understanding the transversal of the Health Care processes.

  7. Teachers as co-designers of technology-rich learning activities for emergent literacy

    NARCIS (Netherlands)

    Cviko, Amina; McKenney, Susan; Voogt, Joke

    2016-01-01

    Although kindergarten teachers often struggle with implementing technology, they are rarely involved in co-designing technology-rich learning activities. This study involved teachers in the co-design of technology-rich learning activities and sought to explore implementation and pupil learning outc

  8. Teachers as co-designers of technology-rich learning activities for early literacy

    NARCIS (Netherlands)

    Cviko, Amina; McKenney, Susan; Voogt, Joke

    2015-01-01

    Although kindergarten teachers often struggle with implementing technology, they are rarely involved in co-designing technology-rich learning activities. This study involved teachers in the co-design of technology-rich learning activities and sought to explore implementation and pupil learning outco

  9. Teachers as Co-Designers of Technology-Rich Learning Activities for Early Literacy

    Science.gov (United States)

    Cviko, Amina; McKenney, Susan; Voogt, Joke

    2015-01-01

    Although kindergarten teachers often struggle with implementing technology, they are rarely involved in co-designing technology-rich learning activities. This study involved teachers in the co-design of technology-rich learning activities and sought to explore implementation and pupil learning outcomes. A case-study method was used to investigate:…

  10. Teachers as co-designers of technology-rich learning activities for early literacy

    NARCIS (Netherlands)

    Cviko, Amina; McKenney, Susan; Voogt, Joke

    2015-01-01

    Although kindergarten teachers often struggle with implementing technology, they are rarely involved in co-designing technology-rich learning activities. This study involved teachers in the co-design of technology-rich learning activities and sought to explore implementation and pupil learning outco

  11. Teachers as co-designers of technology-rich learning activities for emergent literacy

    NARCIS (Netherlands)

    Cviko, Amina; McKenney, Susan; Voogt, Joke

    2016-01-01

    Although kindergarten teachers often struggle with implementing technology, they are rarely involved in co-designing technology-rich learning activities. This study involved teachers in the co-design of technology-rich learning activities and sought to explore implementation and pupil learning outc

  12. Teachers as co-designers of technology-rich learning activities for early literacy

    NARCIS (Netherlands)

    Cviko, Amina; McKenney, Susan; Voogt, Joke

    2015-01-01

    Although kindergarten teachers often struggle with implementing technology, they are rarely involved in co-designing technology-rich learning activities. This study involved teachers in the co-design of technology-rich learning activities and sought to explore implementation and pupil learning

  13. Teachers as co-designers of technology-rich learning activities for emergent literacy

    NARCIS (Netherlands)

    Cviko, Amina; McKenney, Susan; Voogt, Joke

    2016-01-01

    Although kindergarten teachers often struggle with implementing technology, they are rarely involved in co-designing technology-rich learning activities. This study involved teachers in the co-design of technology-rich learning activities and sought to explore implementation and pupil learning

  14. Systems Analysis of Technologies for Energy Recovery from Waste. Part I. Gasification followed by Catalytic Combustion, PEM Fuel Cells and Solid Oxide Fuel Cells for Stationary Applications in Comparison with Incineration. Part - II. Catalytic combustion - Experimental part

    Energy Technology Data Exchange (ETDEWEB)

    Assefa, Getachew; Frostell, Bjoern [Royal Inst. of Technology, Stockholm (Sweden). Div. of Industrial Ecology; Jaeraas, Sven; Kusar, Henrik [Royal Inst. of Technology, Stockholm (Sweden). Div. of Chemical Technology

    2005-02-01

    This project is entitled 'Systems Analysis: Energy Recovery from waste, catalytic combustion in comparison with fuel cells and incineration'. Some of the technologies that are currently developed by researchers at the Royal Institute of Technology include catalytic combustion and fuel cells as downstream units in a gasification system. The aim of this project is to assess the energy turnover as well as the potential environmental impacts of biomass/waste-to-energy technologies. In second part of this project economic analyses of the technologies in general and catalytic combustion and fuel cell technologies in particular will be carried out. Four technology scenarios are studied: (1) Gasification followed by Low temperature fuel cells (Proton Exchange Membrane (PEM) fuel cells) (2) Gasification followed by high temperature fuel cells (Solid Oxide Fuel Cells (SOFC) (3) Gasification followed by catalytic combustion and (4) Incineration with energy recovery. The waste used as feedstock is an industrial waste containing parts of household waste, paper waste, wood residues and poly ethene. In the study compensatory district heating is produced by combustion of biofuel. The power used for running the processes in the scenarios will be supplied by the waste-to-energy technologies themselves while compensatory power is assumed to be produced from natural gas. The emissions from the system studied are classified and characterised using methodology from Life Cycle Assessment in to the following environmental impact categories: Global Warming Potential, Acidification Potential, Eutrophication Potential and finally Formation of Photochemical Oxidants. Looking at the result of the four technology chains in terms of the four impact categories with impact per GWh electricity produced as a unit of comparison and from the perspective of the rank each scenario has in all the four impact categories, SOFC appears to be the winner technology followed by PEM and CC as second

  15. Potential of direct metal deposition technology for manufacturing thick functionally graded coatings and parts for reactors components

    Science.gov (United States)

    Thivillon, L.; Bertrand, Ph.; Laget, B.; Smurov, I.

    2009-03-01

    Direct metal deposition (DMD) is an automated 3D deposition process arising from laser cladding technology with co-axial powder injection to refine or refurbish parts. Recently DMD has been extended to manufacture large-size near-net-shape components. When applied for manufacturing new parts (or their refinement), DMD can provide tailored thermal properties, high corrosion resistance, tailored tribology, multifunctional performance and cost savings due to smart material combinations. In repair (refurbishment) operations, DMD can be applied for parts with a wide variety of geometries and sizes. In contrast to the current tool repair techniques such as tungsten inert gas (TIG), metal inert gas (MIG) and plasma welding, laser cladding technology by DMD offers a well-controlled heat-treated zone due to the high energy density of the laser beam. In addition, this technology may be used for preventative maintenance and design changes/up-grading. One of the advantages of DMD is the possibility to build functionally graded coatings (from 1 mm thickness and higher) and 3D multi-material objects (for example, 100 mm-sized monolithic rectangular) in a single-step manufacturing cycle by using up to 4-channel powder feeder. Approved materials are: Fe (including stainless steel), Ni and Co alloys, (Cu,Ni 10%), WC compounds, TiC compounds. The developed coatings/parts are characterized by low porosity (<1%), fine microstructure, and their microhardness is close to the benchmark value of wrought alloys after thermal treatment (Co-based alloy Stellite, Inox 316L, stainless steel 17-4PH). The intended applications concern cooling elements with complex geometry, friction joints under high temperature and load, light-weight mechanical support structures, hermetic joints, tubes with complex geometry, and tailored inside and outside surface properties, etc.

  16. Activities involving aeronautical, space science, and technology support for minority institutions

    Science.gov (United States)

    1993-01-01

    The Final Report addressed the activities with which the Interracial Council for Business Opportunity (ICBO) was involved over the past 12 months. ICBO was involved in the design and development of a CARES Student Tracking System Software (CARES). Cares is intended to provide an effective means of maintaining relevant current and historical information on NASA-funded students through a range of educational program initiatives. ICBP was extensively involved in the formation of a minority university consortium amd implementation of collaborative research activities by the consortium as part of NASA's Mission to Planet Earth/Earth Observing System. ICBO was involved in the formation of an HBCU/MI Consortium to facilitate technology transfer efforts to the small and minority business community in their respective regions.

  17. Revitalize the US silicon/ferrosilicon industry through energy-efficient technology. Part 1, Final report

    Energy Technology Data Exchange (ETDEWEB)

    Larson, H.R.; Welborn, J.H.

    1995-02-01

    It is concluded that silicon metal and ferrosilicon can be very effectively produced in a DC submerged arc furnace. Specific energy consumption factors measured were favorable to the technology. Significant energy savings over conventional AC practice are likely. Hollow electrode feeding of the furnace does not appear feasible. Electrode consumption was 0.144 lbs/lb so silicon while making metal, much of which occurred above the burden pile. Silicon loss to fume averaged 19.5% of the silicon charge. In this furnace, 50% FeSi was more difficult to produce than silicon metal, and the furnace could not be run with full burden; it was operated successfully about 3/4 full. In the silicon metal portion, the furnace was operated in a fully submerged mode for several 3-day test campaigns. The industry must seriously consider the identified benefits of DC plasma arc technology for retrofit or new added silicon capacity.

  18. Bringing (Century-Old) Technology into the Classroom, Part I: Teaching Mechanics and Thermodynamics with Antiques

    Science.gov (United States)

    Jewett, John W.

    2015-10-01

    The notion of bringing technology into the classroom has been the subject of many recent presentations at conferences and papers in physics teaching journals. The use of devices such as laptops, smartphones, tablets, and clickers is rising in today's classrooms and laboratories. PhET simulations have been available online for over a decade. A column in The Physics Teacher, called "iPhysicsLabs," was begun in February of 2012 and describes experiments to be carried out with smartphones and tablets. Students have become familiar with the operation and application of such technology. But are they aware of the underlying physics necessary to make the devices and the online simulations work? Much of the physics is hidden at the microscopic level in tiny circuit chips or in the workings of a distant server.

  19. A Review of Realizing the Universal Health Coverage (UHC) Goals by 2030: Part 2- What is the Role of eHealth and Technology?

    Science.gov (United States)

    Hussein, Rada

    2015-07-01

    This paper is the second part of a review of how to realize the Universal Health Coverage (UHC) goals by 2030. The objective of this review is to investigate the role of eHealth and technology in achieving UHC, focusing on four aspects: 1) identifying the importance of UHC and highlighting how UHC is influenced by health systems and eHealth, 2) investigating the current status of UHC worldwide and indicating the current challenges facing the realization of UHC, 3) reviewing the current research activities in the UHC domain and emphasizing the role of eHealth and technology in achieving UHC, and 4) discussing the results of the review to identify the current gaps in UHC implantation and the corresponding research lines for future investigation. This part covers the last two aspects through providing a comprehensive understanding of the role of eHealth in the current research activities in the UHC domain. Specifically, eHealth can be extensively deployed in connecting the healthcare information systems, strengthening the health systems, building the health workforce capacity, in addition to forming frameworks of integrated mHealth strategies for achieving UHC.

  20. MECHANICAL PROPERTIES OF PARTS OF MEDICAL PRODUCTS PRODUCED USING ADDITIVE MANUFACTURING TECHNOLOGIES

    Directory of Open Access Journals (Sweden)

    Filip Górski

    2017-06-01

    Full Text Available The paper presents results of tests conducted on the elements of medical devices - slings used with medical lifts - manufactured using additive technologies. Project assumptions were: to produce 100 samples of clips with varying design, material and orientation parameter. Samples were manufactured using FDM and SLA processes and then tested for mechanical strength, load transmission and functionality, using certified equipment. Paper shows full methodology and obtained test results.

  1. Devising an energy saving technology for a biogas plant as a part of the cogeneration system

    OpenAIRE

    Чайковська, Євгенія Євстафіївна

    2015-01-01

    The paper suggests an operation technology for a biogas plant that allows setting a heating medium temperature at the inlet to the heat exchanger built in a digester and measuring the heating medium temperature at the outlet. An integrated system for assessing the varied temperature of digestion (that is based on mathematical and logical modeling within the cogeneration system) secures a continuous gas outlet, a timely unloading of fermented mash and loading of a fresh matter. For this purpos...

  2. Heat pumps and technological development: Civil use in 80's (1st part)

    Energy Technology Data Exchange (ETDEWEB)

    Lazzarin, R. (Bari Univ. (Italy). Ist. di Fisica Tecnica ed Impianti Termotecnici)

    1990-09-01

    This article analyses the technological development of heat pumps for civil purposes. These devices belong to the big family of heat pumps: electrical compression devices, thermally driven machines, adsorption machines, internal and external combustion engines. Electrical heat pumps saw an interesting development in their components, particularly in the compressor (with the adoption of screw and scroll compressors) and in the thermal exchange batteries, without forgetting the progress in electronics, from the setting to the expansion valve and the defrosting system.

  3. Technology Development Road for Chemical Fiber Industry in Ghina [Part Two

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    @@ Ⅲ.Technology development direction for China's chemical fiber industry in the"11th Five-year Plan" period and the longer run Presently,China's chemical fiber industry is in a critical period for development,or important transition period.Fully implement and fulfill the "'scientific development concept"put forward by the nation,and take a sustainable development road.The growth model of chemical fiber industry must undergo fundamental transformation from "quantitative"development into "qualitative" development.

  4. 汽车零部件的清洗技术%Vehicle Parts Cleaning Technology

    Institute of Scientific and Technical Information of China (English)

    刘丽

    2013-01-01

      汽车零部件的清洗是汽车零部件的生产工艺过程的一个重要组成部份,主要介绍了清洗的目的不仅是外观装饰的需要,更重要的是确保和提高产品质量的需要。化学清洗是汽车零部件的清洗中应用最广泛、使用最方便、效果最理想、成本低廉的一种方法。%Vehicle parts cleaning were introduced in this paper is the production of vehicle parts is one of the most important link, is the pro⁃duction process is an important part of. The purpose of cleaning is not only the need of decorated appearance, more important is to ensure and improve product quality. In the industrial developed countries, the cleanliness and precision and smooth finish in same position. Chemical cleaning is the most widely used in vehicle parts cleaning, use the most convenient, effect ideal, a method of low cost. Cleaning mechaniza⁃tion, automation, to improve the cleaning effect and save energy, reduce costs, shorten time has obvious practical significance.

  5. TBI-ROC Part Seven: Traumatic Brain Injury--Technologies to Support Memory and Cognition

    Science.gov (United States)

    Scherer, Marcia; Elias, Eileen; Weider, Katie

    2010-01-01

    This article is the seventh of a multi-part series on traumatic brain injury (TBI). The six earlier articles in this series have discussed the individualized nature of TBI and its consequences, the rehabilitation continuum, and interventions at various points along the continuum. As noted throughout the articles, many individuals with TBI…

  6. TBI-ROC Part Seven: Traumatic Brain Injury--Technologies to Support Memory and Cognition

    Science.gov (United States)

    Scherer, Marcia; Elias, Eileen; Weider, Katie

    2010-01-01

    This article is the seventh of a multi-part series on traumatic brain injury (TBI). The six earlier articles in this series have discussed the individualized nature of TBI and its consequences, the rehabilitation continuum, and interventions at various points along the continuum. As noted throughout the articles, many individuals with TBI…

  7. Biotechnology and genetic engineering in the new drug development. Part I. DNA technology and recombinant proteins.

    Science.gov (United States)

    Stryjewska, Agnieszka; Kiepura, Katarzyna; Librowski, Tadeusz; Lochyński, Stanisław

    2013-01-01

    Pharmaceutical biotechnology has a long tradition and is rooted in the last century, first exemplified by penicillin and streptomycin as low molecular weight biosynthetic compounds. Today, pharmaceutical biotechnology still has its fundamentals in fermentation and bioprocessing, but the paradigmatic change affected by biotechnology and pharmaceutical sciences has led to an updated definition. The biotechnology revolution redrew the research, development, production and even marketing processes of drugs. Powerful new instruments and biotechnology related scientific disciplines (genomics, proteomics) make it possible to examine and exploit the behavior of proteins and molecules. Recombinant DNA (rDNA) technologies (genetic, protein, and metabolic engineering) allow the production of a wide range of peptides, proteins, and biochemicals from naturally nonproducing cells. This technology, now approximately 25 years old, is becoming one of the most important technologies developed in the 20(th) century. Pharmaceutical products and industrial enzymes were the first biotech products on the world market made by means of rDNA. Despite important advances regarding rDNA applications in mammalian cells, yeasts still represent attractive hosts for the production of heterologous proteins. In this review we describe these processes.

  8. 75 FR 33631 - Science and Technology (S&T) Directorate; Agency Information Collection Activities: Submission...

    Science.gov (United States)

    2010-06-14

    ... SECURITY Science and Technology (S&T) Directorate; Agency Information Collection Activities: Submission for Review; Information Collection Request for the Department of Homeland Security (DHS) Science and... Security's (DHS's) Science and Technology (S&T) Directorate to provide information, resources...

  9. Numerical simulation study on active and passive hydroforming process optimization of box shaped part

    Science.gov (United States)

    Zeng, Y. P.; Dong, J. L.; He, T. D.; Wang, B.

    2016-08-01

    Low qualified rate and inferior quality frequently occurring in the general deep drawing process of a certain box-shaped part, now use hydroforming to optimize forming process, in order to study the effect of hydroforming for improving the quality and formability, purposed five process schemes: general deep drawing, active hydroforming, passive hydroforming, general deep drawing combined with active hydroforming, passive combined with active hydroforming. Each process was simulated by finite element simulation and results were analysed. The results indicate the passive combined with active hydroforming is the best scheme which can obtain smallest thickness thinning and satisfactory formability, then optimized hydroforming pressure, blank holder force subsequently by adjust the simulation parameters. Research result proves that active/passive hydroforming is a new method for complex parts forming.

  10. Educational Technology as a Subversive Activity: Questioning Assumptions Related to Teaching and Leading with Technology

    Science.gov (United States)

    Kruger-Ross, Matthew J.; Holcomb, Lori B.

    2012-01-01

    The use of educational technologies is grounded in the assumptions of teachers, learners, and administrators. Assumptions are choices that structure our understandings and help us make meaning. Current advances in Web 2.0 and social media technologies challenge our assumptions about teaching and learning. The intersection of technology and…

  11. Process analytical technology (PAT) for biopharmaceutical products: Part II. Concepts and applications.

    Science.gov (United States)

    Read, E K; Shah, R B; Riley, B S; Park, J T; Brorson, K A; Rathore, A S

    2010-02-01

    Implementing real-time product quality control meets one or both of the key goals outlined in FDA's PAT guidance: "variability is managed by the process" and "product quality attributes can be accurately and reliably predicted over the design space established for materials used, process parameters, manufacturing, environmental, and other conditions." The first part of the paper presented an overview of PAT concepts and applications in the areas of upstream and downstream processing. In this second part, we present principles and case studies to illustrate implementation of PAT for drug product manufacturing, rapid microbiology, and chemometrics. We further present our thoughts on how PAT will be applied to biotech processes going forward. The role of PAT as an enabling component of the Quality by Design framework is highlighted. Integration of PAT with the principles stated in the ICH Q8, Q9, and Q10 guidance documents is also discussed.

  12. Key Residential Building Equipment Technologies for Control and Grid Support PART I (Residential)

    Energy Technology Data Exchange (ETDEWEB)

    Starke, Michael R [ORNL; Onar, Omer C [ORNL; DeVault, Robert C [ORNL

    2011-09-01

    Electrical energy consumption of the residential sector is a crucial area of research that has in the past primarily focused on increasing the efficiency of household devices such as water heaters, dishwashers, air conditioners, and clothes washer and dryer units. However, the focus of this research is shifting as objectives such as developing the smart grid and ensuring that the power system remains reliable come to the fore, along with the increasing need to reduce energy use and costs. Load research has started to focus on mechanisms to support the power system through demand reduction and/or reliability services. The power system relies on matching generation and load, and day-ahead and real-time energy markets capture most of this need. However, a separate set of grid services exist to address the discrepancies in load and generation arising from contingencies and operational mismatches, and to ensure that the transmission system is available for delivery of power from generation to load. Currently, these grid services are mostly provided by generation resources. The addition of renewable resources with their inherent variability can complicate the issue of power system reliability and lead to the increased need for grid services. Using load as a resource, through demand response programs, can fill the additional need for flexible resources and even reduce costly energy peaks. Loads have been shown to have response that is equal to or better than generation in some cases. Furthermore, price-incentivized demand response programs have been shown to reduce the peak energy requirements, thereby affecting the wholesale market efficiency and overall energy prices. The residential sector is not only the largest consumer of electrical energy in the United States, but also has the highest potential to provide demand reduction and power system support, as technological advancements in load control, sensor technologies, and communication are made. The prevailing loads

  13. Sediment Management Methods to Reduce Dredging: Part 2, Sediment Collector Technology

    Science.gov (United States)

    2017-04-01

    ensure that unauthorized personnel do not gain access to the material management equipment (separator and stacker). The 6 ft tall fence around the...Approved for public release; distribution is unlimited. ERDC TN-DOER-T13 April 2017 Sediment Management Methods to Reduce Dredging: Part 2...DOER) Program technical note (TN) is the second in a series evaluating sediment management methods to reduce dredging through a research task (RT

  14. Tunnel Boring Machine Technology for a Deeply Based Missile System. Volume I, Application Feasibility. Part 2.

    Science.gov (United States)

    1980-08-01

    Air Force Weapons Laboratory (NTESG) August 1980 Kirtland AFB, NM 87117 NUMBER OF PAGES 14. MONITORING AGENCY NAME & ADDRESS(il different from...incorporate in selected initial tunnel sections, trial sunport systems lighter than those calculated by existing RSP methods. These could be monitored as part...a pair of steel, 156 lA wide-flanqe (1F) beams, shaped to fit the tunnel opening and bolted toqether at the tunnel crown set on kicker foot blocks

  15. New Water Disinfection Technology for Earth and Space Applications as Part of the NPP Fellowship Research

    Science.gov (United States)

    SilvestryRodriquez, Nadia

    2010-01-01

    There is the need for a safe, low energy consuming and compact water disinfection technology to maintain water quality for human consumption. The design of the reactor should present no overheating and a constant temperature, with good electrical and optical performance for a UV water treatment system. The study assessed the use of UVA-LEDs to disinfectant water for MS2 Bacteriophage. The log reduction was sufficient to meet US EPA standards as a secondary disinfectant for maintaining water quality control. The study also explored possible inactivation of Pseudomonas aeruginosa and E. coli.

  16. Bibliography on Cold Regions Science and Technology Volume 53, Part 2

    Science.gov (United States)

    1999-12-01

    the velocity distribution in ping-pong- Martian north polar cap 1996-1997 [1999, eng] 53-3536 Ishii , S. ball avalanches [1998, eng] 53-2020 Iwasaki...warming [1988, Siberian Platform [1997, eng] 53-1740 Scharroo, R. eng] 53-1118 Sawa ,Y. Antarctic elevation change from 1992 to 1996 [1998, Schlich,R. Size...freezing technology for environmental remediation. road surface. Ishii , S., et al, [1998,eng] 53-2958 Atlantic Oceans-Reykjanes Ridge Dash, J.G., [1999,eng

  17. Fundamentals of Manufacturing Technologies for Aircraft Engine Parts Made of TiAl Based Alloys

    Directory of Open Access Journals (Sweden)

    Szkliniarz W.

    2016-09-01

    Full Text Available The study presents fundamentals of manufacturing technologies for aircraft engine construction elements, made of light, intermetallic TiAl based alloy, which is characterized by high relative strength and good creep and oxidation resistance. For smelting of alloy, the vacuum metallurgy methods were used, including application of induction furnace equipped with special crucibles made of isostatic-pressed, high-density graphite. To produce good quality construction element for aircraft engine, such as low-pressure turbine blade, there were methods of gravity casting from a very high temperature to the preheated shell moulds applied.

  18. Selection of the Most Appropriate Technology of Reparatory Hard Facing of Working Parts on Universal Construction Machinery

    Directory of Open Access Journals (Sweden)

    P. Marinkovic

    2011-03-01

    Full Text Available The aim of this work is to analyse the possibility to increase the service life of working parts on construction machinery exposed to intensive wear, such as steel blades of the rotary device for roadside vegetation maintenance and grass cutting. A special attention is paid to characteristic working conditions and complex wear mechanisms. In order to select the most appropriate reparation technology, both model and real investigations were conducted. The aim of the model investigations was to select the most appropriate procedure, filler materials and hard facing technology. Worn cutting edges of the blades were hard faced and sharpened by grinding to the shape and dimensions of new blades. Then, both new and repaired blades were alternately mounted on the rotor of the machine. Their wear was monitored under the same working and weather conditions. The repaired blades have proven more resistant to wear than the new ones, which is due to better properties of the hard faced layers.

  19. Application of DMU Technology in Moving Part Dimension%活动件尺寸工程上的数字装配应用技术

    Institute of Scientific and Technical Information of China (English)

    曾庆华; 宋玉平

    2012-01-01

    Abstract:In vehicle prototype trial-manufaeture stage, there's no special cheeking fixture and measuring bracket. In order to solve the difficulties in dimension control and analyzing the moving parts, including electric regulator system, body hinge system, wiper motor, linkage system and skylight system, the DMU (Digital Mock Up, digital model) motion mechanism dynamic simulation technology can easily solve the above-mentioned problem through slightly adjusting the opening angle of active moving part. combining with the existing 3D measurement technology. The application of DMU technology in moving part dimension engineering can realize vehicle trial-manufacture stage dimension precision measurement and analysis%为解决整车试制阶段,在检具和支架还没有开发出来的情况下,活动件(电动玻璃升降器系统、车身铰链系统、雨刮电机及连动杆系统和天窗系统等)尺寸控制分析困难的现状,应用DMU(Digital MockUp,数字装配)运动机构动态仿真技术,通过对活动件开合角度的调整.结合现有的三维测量技术,有效地解决了车身试制阶段,活动件尺寸分析困难的问题、活动件尺寸工程上的DMU应用技术,可以实现整车试制阶段活动件尺寸精准测量分析。

  20. How to change GEBCO outreach activities with Information technologies?

    Science.gov (United States)

    Chang, E.; Park, K.

    2014-12-01

    Since 1995, when National Geographic Information Project began, we have great advance in mapping itself and information service on the earth surface in Korea whether paper maps or online service map. By reviewing geological and mine-related information service in current and comparisons of demands, GEBCO outreach master plan has been prepared. Information service cannot be separated from data production and on dissemination policies. We suggest the potential impact of the changes in information technologies such as mobile service and data fusion, and big data on GEBCO maps based. Less cost and high performance in data service will stimulate more information service; therefore it is necessary to have more customer-oriented manipulation on the data. By inquiring questionnaire, we can draw the potential needs on GEBCO products in various aspects: such as education, accessibility. The gap between experts and non-experts will decrease by digital service from the private and public organizations such as international academic societies since research funds and policies tend to pursue "openness" and "interoperability" among the domains. Some background why and how to prepare outreach activities in GEBCO will be shown.

  1. Chained lightning, part II: neurosurgical principles, radiosurgical technology, and the manipulation of energy beam delivery.

    Science.gov (United States)

    Hoh, Daniel J; Liu, Charles Y; Chen, Joseph C T; Pagnini, Paul G; Yu, Cheng; Wang, Michael Y; Apuzzo, Michael L J

    2007-09-01

    The fundamental principle in the radiosurgical treatment of neurological conditions is the delivery of energy to a lesion with minimal injury to surrounding structures. The development of radiosurgical techniques from Leksell's original design has focused on the refinement of various methodologies to achieve energy containment within a target. This article is the second in a series reviewing the evolution of radiosurgical instruments with respect to issues of energy beam generation and delivery for improved conformal therapy. Continuing with concepts introduced in an earlier article, this article examines specific aspects of beam delivery and the emergence of stereotactic radiosurgery as a measure for focusing energy beams within a target volume. The application of stereotactic principles and devices to gamma ray and linear accelerator-based energy sources provides the methodology by which energy beams are generated and targeted precisely in a focal lesion. Advanced technological systems are reviewed, including fixed beams, dynamic radiosurgery, multileaf collimation, beam shaping, and robotics as various approaches for manipulating beam delivery. Radiosurgical instruments are also compared with regard to mechanics, geometry, and dosimetry. Finally, new radiosurgical designs currently on the horizon are introduced. In exploring the complex history of radiosurgery, it is evident that the discovery and rediscovery of ideas invariably leads to the development of innovative technology for the next generation.

  2. The potential of acidophilic macroalgae as part of passive bioremediation technology for acid mine drainage in constructed wetlands

    CSIR Research Space (South Africa)

    Cheng, Po-Hsun

    2012-10-01

    Full Text Available of diverse benthic algal species to AMD provides the option to utilise them in AMD remediation as part of passive bioremediation technology in constructed wetlands. The purpose of the study was to investigate the bioaccumulation of metals and trace metal...? 11110? Mud/sediment Bore hole effluent from decanting gold mines forming a stream AMD effluent (gold mining) vegetated 2?4 E 27? 72273? Figure 1: Metal and trace metal concentrations (mg/L) in water column from the selected sampling sites...

  3. Sustainability cost accounting, Part 1: A Monetary procedure to evaluate the sustainability of technologies in the South African process industry

    CSIR Research Space (South Africa)

    Brent, AC

    2006-11-01

    Full Text Available Engineering Nov 2006 Vol 17(2): 35-51 SUSTAINABILITY COST ACCOUNTING - PART 1: A MONETARY PROCEDURE TO EVALUATE THE SUSTAINABILITY OF TECHNOLOGIES IN THE SOUTH AFRICAN PROCESS INDUSTRY A.C. Brent1,2, R.P.G. van Erck1, and C. Labuschagne1 1Chair... and Systems Engineering, University of Pretoria. [8] Labuschagne, C., Brent, A.C. and van Erck, R.P.G. 2005. Assessing the sustainability performances of industries, Journal of Cleaner Production, 13(4), pp 373-385. 50 [9] Gray, R.H. 1992. Accounting...

  4. The Teacher as Re-Designer of Technology Integrated Activities for an Early Literacy Curriculum

    Science.gov (United States)

    Cviko, Amina; McKenney, Susan; Voogt, Joke

    2013-01-01

    Though popular among children outside of school, Dutch teachers often struggle to offer technology integrated activities in the kindergarten classroom. Because involving teachers in development of technology integrated activities can support their implementation, this study examines teachers in the role of re-designing such activities. Two case…

  5. Antibacterial and antifungal activities of different parts of Tribulus terrestris L. growing in Iraq.

    Science.gov (United States)

    Al-Bayati, Firas A; Al-Mola, Hassan F

    2008-02-01

    Antimicrobial activity of organic and aqueous extracts from fruits, leaves and roots of Tribulus terrestris L., an Iraqi medicinal plant used as urinary anti-infective in folk medicine, was examined against 11 species of pathogenic and non-pathogenic microorganisms: Staphylococcus aureus, Bacillus subtilis, Bacillus cereus, Corynebacterium diphtheriae, Escherichia coli, Proteus vulgaris, Serratia marcescens, Salmonella typhimurium, Klebsiella pneumoniae, Pseudomonas aeruginosa and Candida albicans using microdilution method in 96 multiwell microtiter plates. All the extracts from the different parts of the plant showed antimicrobial activity against most tested microorganisms. The most active extract against both Gram-negative and Gram-positive bacteria was ethanol extract from the fruits with a minimal inhibitory concentration (MIC) value of 0.15 mg/ml against B. subtilis, B. cereus, P. vulgaris and C. diphtheriae. In addition, the same extract from the same plant part demonstrated the strongest antifungal activity against C. albicans with an MIC value of 0.15 mg/ml.

  6. Non-destructive Assessment of Relief Marking Parameters of Heat Shrinkable Installation Parts for Aviation Technology

    Directory of Open Access Journals (Sweden)

    Kondratov Aleksandr P.

    2017-01-01

    Full Text Available The article explains a new method of relief marking of heat-shrinkable tubing and sleeves made of polymer materials with “shape memory effect.” Method of instrument evaluation of relief marking stereometry of installation parts for aviation equipment, made of polyvinyl chloride, polyethyleneterephthalate and polystyrene was developed and the results were explained. Parameters of pin-point relief marking and compliance of point forms to the Braille font standard were determined with the use of the non-destructive method based on the color of interference pattern with precision of 0.02 mm.

  7. JPRS Report, Science & Technology, Japan, 27th Aircraft Symposium, Part 3

    Science.gov (United States)

    2007-11-02

    jsa_ ^Ufflffl"" 6: Galley L: Lavatory S: Stowage ft: Attendant sheet ElRRRRRRRRRRRRRRRr^ rot i «KikTi usi. .«Ninas Figure 4.3 Layout of...positions. The display processor was set in the space beside the electric rack in the back part of the cockpit. A photograph of the cockpit with the LCD...ch) ROLM RACK power source LUD I A»IL6C 0 I "C *BV u. , Pen recorder rear cabin/ (3 cn) right side (front) Dirfr side Figure 2

  8. Advanced Power Technology Development Activities for Small Satellite Applications

    Science.gov (United States)

    Piszczor, Michael F.; Landis, Geoffrey A.; Miller, Thomas B.; Taylor, Linda M.; Hernandez-Lugo, Dionne; Raffaelle, Ryne; Landi, Brian; Hubbard, Seth; Schauerman, Christopher; Ganter, Mathew; hide

    2017-01-01

    NASA Glenn Research Center (GRC) has a long history related to the development of advanced power technology for space applications. This expertise covers the breadth of energy generation (photovoltaics, thermal energy conversion, etc.), energy storage (batteries, fuel cell technology, etc.), power management and distribution, and power systems architecture and analysis. Such advanced technology is now being developed for small satellite and cubesat applications and could have a significant impact on the longevity and capabilities of these missions. A presentation during the Pre-Conference Workshop will focus on various advanced power technologies being developed and demonstrated by NASA, and their possible application within the small satellite community.

  9. Research on Parametric Process Planning Technology Based on Three-dimensional Part Model

    Institute of Scientific and Technical Information of China (English)

    DING Yufeng; WEI Zhongling

    2006-01-01

    CAPP(Computer Aided Process Planning) has already become the bottleneck of CAD/CAM system. Present two-dimensional CAPP system which is used in the enterprise needs to be input information and data again, because it can not draw data from CAD(Computer Aided Design)model automatically after building CAD model and drawing. This has influenced extensive use of CAPP system because of its low efficiency. In this paper, three-dimensional model is built by using the parametric method, the process file can be produced directly through drawing corresponding characteristic and parameter from the model with the aid of process database. This improves the efficiency of product development. Visual C++ 6.0 and SQL Server 2000 are used to develop WTJDCAPP prototype system based on component model and SolidWorks three-dimensional CAD platform. Engine valve-seat is taken as concrete object to validate of the technology.

  10. Influence of injector technology on injection and combustion development - Part 2: Combustion analysis

    Energy Technology Data Exchange (ETDEWEB)

    Payri, R.; Salvador, F.J.; Gimeno, J.; Morena, J. de la [CMT-Motores Termicos, Universidad Politecnica de Valencia, Camino de Vera s/n, E-46022 (Spain)

    2011-04-15

    The influence of injection technology on the fuel-air mixing process and the combustion development are analyzed by means of visualization techniques. For this purpose, two injectors (one solenoid and one piezoelectric) are characterized using an optical accessible two stroke engine. Visualization of liquid penetration has allowed the measurement of the stabilized liquid length, which is related with the efficiency of fuel-air mixing process. A theoretical derivation is used in order to relate this liquid length with chamber conditions, as well as to make a temporal analysis of these phenomena. After this, natural flame emission and chemiluminescence techniques are carried out. These results indicate that the piezoelectric system has a more efficient fuel-air mixing and combustion, reducing the characteristic times as well as soot formation. Finally, a correlation for the ignition delay of the two systems is obtained. (author)

  11. Exploiting molecular methods to explore endodontic infections: Part 1--current molecular technologies for microbiological diagnosis.

    Science.gov (United States)

    Siqueira, J F; Rôças, I N

    2005-06-01

    Endodontic infections have been traditionally studied by culture-dependent methods. However, as with other areas of clinical microbiology, culture-based investigations are plagued by significant problems, including the probable involvement of viable but uncultivable micro-organisms with disease causation and inaccurate microbial identification. Innumerous molecular technologies have been used for microbiological diagnosis in clinical microbiology, but only recently some of these techniques have been applied in endodontic microbiology research. This paper intended to review the main molecular methods that have been used or have the potential to be used in the study of endodontic infections. Moreover, advantages and limitations of current molecular techniques when compared to conventional methods for microbial identification are also discussed.

  12. Designing of space oriented body parts with the use of modern technologies

    Directory of Open Access Journals (Sweden)

    Ayusheev Munkhe-Zul

    2016-01-01

    Full Text Available Proper selection of the gating system for investment pattern is a long and labor-intensive process that requires significant resources. The latest design technologies enable the calculation of the gating system and simulation of the casting process based on these calculations. Simulation and calculation of the gating system make it possible to determine defects which occur during the casting process at the design stage. The result of simulation is the distribution of flow and temperature velocity vectors. The process of cooling and crystallization is simulated, as well as a mold filling process. Analyzing these data and changing the characteristics of the gating system, it is possible to achieve the very high quality of castings.

  13. TECHNOLOGY FOR OBTAINING BIMETALLIC SHAPING PARTS OF DIE TOOLING USING METHOD OF HIGH-SPEED HOT EXTRUSION

    Directory of Open Access Journals (Sweden)

    I. V. Kachanov

    2014-01-01

    Full Text Available Processes of high-speed shaping changes and especially high-speed hot extrusion create efficient conditions for treatment of weakly plastic and poorly deformable materials which are widely used in tool making facilities. Due to the fact that high-speed stamping provides accurate billets with increased mechanical properties, it can be used as a technological process for manufacturing shaping parts of die tooling parts operating which are subjected to increased loads and wear.The purpose of the paper is to carry out experimental investigations on the possibility to obtain a bimetallic tool where structural steel is considered as a basis of the tool and a working cavity is made of high-alloyed tool steel with its saving up to 90 %. A scheme of loading and geometry of conjugated surfaces of the composite billet have been developed in the paper. Technology for obtaining bimetallic shaping parts of die tooling with deformation at speed of vR = 40-50 m/s and composite billet temperature of T = 1150 °C has been experimentally tested with formation of a compound due to plastic flow of two billet parts on contact surface with removal of surface oxide films.Microstructures of the bimetallic compounds obtained with the help of high-speed hot extrusion method for compositions of structural and high-alloy steels have been investigated and their high quality has been proved during the investigations. Dependences of micro-hardness distribution have been established outbound two- steel contact plane in the zone of connection that are characterized by a minimum micro-hardness value in the connection joint. Availability of more plastic zone in the contact plane contributes to reduction of residual stresses due to their relaxation in this zone and higher joint strength.

  14. Idaho Nuclear Technology and Engineering Center Low-Activity Waste Process Technology Program FY-98 Status Report

    Energy Technology Data Exchange (ETDEWEB)

    Herbst, Alan Keith; Mc Cray, John Alan; Rogers, Adam Zachary; Simmons, R. F.; Palethorpe, S. J.

    1999-03-01

    The Low-Activity Waste Process Technology Program at the Idaho Nuclear Technology and Engineering Center (INTEC) anticipates that large volumes of low-level/low-activity wastes will need to be grouted prior to near-surface disposal. During fiscal year 1998, three grout formulations were studied for low-activity wastes derived from INTEC liquid sodium-bearing waste. Compressive strength and leach results are presented for phosphate bonding cement, acidic grout, and alkaline grout formulations. In an additional study, grout formulations are recommended for stabilization of the INTEC underground storage tank residual heels.

  15. Idaho Nuclear Technology and Engineering Center Low-Activity Waste Process Technology Program, FY-98 Status Report

    Energy Technology Data Exchange (ETDEWEB)

    Herbst, A.K.; Rogers, A.Z.; McCray, J.A.; Simmons, R.F.; Palethorpe, S.J.

    1999-03-01

    The Low-Activity Waste Process Technology Program at the Idaho Nuclear Technology and Engineering Center (INTEC) anticipates that large volumes of low-level/low-activity wastes will need to be grouted prior to near-surface disposal. During fiscal year 1998, three grout formulations were studied for low-activity wastes derived from INTEC liquid sodium-bearing waste. Compressive strength and leach results are presented for phosphate bonding cement, acidic grout, and alkaline grout formulations. In an additional study, grout formulations are recommended for stabilization of the INTEC underground storage tank residual heels.

  16. Idaho Nuclear Technology and Engineering Center Low-Activity Waste Process Technology Program, FY-98 Status Report

    Energy Technology Data Exchange (ETDEWEB)

    Herbst, A.K.; Rogers, A.Z.; McCray, J.A.; Simmons, R.F.; Palethorpe, S.J.

    1999-03-01

    The Low-Activity Waste Process Technology Program at the Idaho Nuclear Technology and Engineering Center (INTEC) anticipates that large volumes of low-level/low-activity wastes will need to be grouted prior to near-surface disposal. During fiscal year 1998, three grout formulations were studied for low-activity wastes derived from INTEC liquid sodium-bearing waste. Compressive strength and leach results are presented for phosphate bonding cement, acidic grout, and alkaline grout formulations. In an additional study, grout formulations are recommended for stabilization of the INTEC underground storage tank residual heels.

  17. Idaho Nuclear Technology and Engineering Center Low-Activity Waste Process Technology Program FY-98 Status Report

    Energy Technology Data Exchange (ETDEWEB)

    Herbst, A.K.; McCray, J.A.; Rogers, A.Z.; Simmons, R.F.; Palethrope, S.J.

    1999-03-01

    The Low-Activity Waste Process Technology Program at the Idaho Nuclear Technology and Engineering Center (INTEC) anticipates that large volumes of low-level/low-activity wastes will need to be grouted prior to near-surface disposal. During fiscal year 1998, three grout formulations were studied for low-activity wastes derived from INTEC liquid sodium-bearing waste. Compressive strength and leach results are presented for phosphate bonding cement, acidic grout, and alkaline grout formulations. In an additional study, grout formulations are recommended for stabilization of the INTEC underground storage tank residual heels.

  18. [[Technology Surgical Intervention in Ulcerative Colitis Modeling Descending Part of the Colon in Rats Line "Wistar"].

    Science.gov (United States)

    Kim, A D; Petuhova, S A; Chashkova, Ye Y U; Gol'dberg, O A; Shedoeva, L R

    2016-01-01

    Ulcerative colitis (UC) is a chronic immune inflammatory condition of the colon with an unknown aetiology, leading to disability and reduced quality of life of patients. UC primarily affects young adults. In most cases, inflammatory bowel disease (iBD) debuts at reproductive age. The incidence of UC and severe clinical course has increased overall across the world. The study of the mechanisms of pathogenesis and aetiology of this disease contributes to the development of new effective methods of treatment. The aim of our study was to develop technology of the surgery directed to induction of reversible ischemic damage, the erosive-ulceration of gut mucosae (descending colon) at rats of the WISTAR line. Experimental research was done using male rats (n=40), their age was more than 6 months, weight of body is 280 - 350 grams. The animals were separated into 3 groups: 1 - (n=14) Sholimov's operative method, 2 group (n=16) - model using special technology, 3 group (n=10) - Coopr's H. S. induction ulcerative colitis. Observation was been done during 10 days. We offered special surgical technique: parietal ligation on every vasa recta of colon descendens of rats the length 3 cm along colon, on the apex vesicae and then vasa recta are cut. Then during 7 days 1% solution of dextran sulfate sodium (DSN) was given for experimental animals after postoperative period. By the histolog- ical biopsy of colon mucosa the results were estimated. we have created erosive-ulceration of gut mucosae (descending colon) of rat with productive inflam- mation, vasculitis and plasmatic impregnation of the vessel walls and intimal thickening. Our model of ulcerative colitis can be used for the development and testing of new methods for the study and treatment of this pathology.

  19. Active and Passive Technology Integration: A Novel Approach for Managing Technology's Influence on Learning Experiences in Context-Aware Learning Spaces

    Science.gov (United States)

    Laine, Teemu H.; Nygren, Eeva

    2016-01-01

    Technology integration is the process of overcoming different barriers that hinder efficient utilisation of learning technologies. The authors divide technology integration into two components based on technology's role in the integration process. In active integration, the technology integrates learning resources into a learning space, making it…

  20. Key Residential Building Equipment Technologies for Control and Grid Support PART I (Residential)

    Energy Technology Data Exchange (ETDEWEB)

    Starke, Michael R [ORNL; Onar, Omer C [ORNL; DeVault, Robert C [ORNL

    2011-09-01

    Electrical energy consumption of the residential sector is a crucial area of research that has in the past primarily focused on increasing the efficiency of household devices such as water heaters, dishwashers, air conditioners, and clothes washer and dryer units. However, the focus of this research is shifting as objectives such as developing the smart grid and ensuring that the power system remains reliable come to the fore, along with the increasing need to reduce energy use and costs. Load research has started to focus on mechanisms to support the power system through demand reduction and/or reliability services. The power system relies on matching generation and load, and day-ahead and real-time energy markets capture most of this need. However, a separate set of grid services exist to address the discrepancies in load and generation arising from contingencies and operational mismatches, and to ensure that the transmission system is available for delivery of power from generation to load. Currently, these grid services are mostly provided by generation resources. The addition of renewable resources with their inherent variability can complicate the issue of power system reliability and lead to the increased need for grid services. Using load as a resource, through demand response programs, can fill the additional need for flexible resources and even reduce costly energy peaks. Loads have been shown to have response that is equal to or better than generation in some cases. Furthermore, price-incentivized demand response programs have been shown to reduce the peak energy requirements, thereby affecting the wholesale market efficiency and overall energy prices. The residential sector is not only the largest consumer of electrical energy in the United States, but also has the highest potential to provide demand reduction and power system support, as technological advancements in load control, sensor technologies, and communication are made. The prevailing loads

  1. Anti-arthritic activity of various extracts of Sida rhombifolia aerial parts.

    Science.gov (United States)

    Gupta, S R; Nirmal, S A; Patil, R Y; Asane, G S

    2009-01-01

    Aerial parts of the plant Sida rhombifolia Linn. (Malvaceae) were extracted successively to produce various extracts. These extracts were screened for various parameters of anti-arthritic activity, such as adjuvant-induced arthritis, motor performance, mean distance travelled, and histopathological study. Results showed that the polar constituents (ethanol and aqueous extracts) of the plant S. rhombifolia were useful in the treatment of arthritis.

  2. DIRECTIONS OF PREPARATION OF FUTURE TEACHERS TO THE USE OF DISTANCE LEARNING TECHNOLOGIES IN PROFESSIONAL ACTIVITY (PRAXIOLOGICAL ASPECT OF THE ACTIVITY APPROACH

    Directory of Open Access Journals (Sweden)

    Tatyana A. Boronenko

    2015-01-01

    Full Text Available The aim of the article is to demonstrate the need of preparing future teachers to use distance learning technologies in the professional activities. Introduction in educational process of distance learning technologies contributes to improving the quality of education. Methods. The authors’ technique of preparation of students of pedagogical specialities to work in the information-educational environment is designed on the basis of the analysis and generalisation of numerous scientific publications. Results. The system of training to implementation of the distance learning technologies in the teaching activity is developed and described, consisting of the following directions: realisation within the program of the principal educational program of specialised training courses in variable-based curriculum parts; the organisation of educational and research activity of students with the use of distance learning technologies; classroom-based and extracurricular independent work of students directed to designing of teaching and learning aids and materials on the basis of distance learning technologies; application of elements of distance learning technologies for students’ teaching; attraction of students to formation of corpus of multimedia educational resources of university. The purposes, the content and expected results of each direction are specified. Scientific novelty. The authors point out that concrete scientifically wellfounded methodical recommendations for the future teachers on implementation of distance learning technologies haven’t been presented in the Russian literature till now; despite an abundance of scientifically-information sources of distance learning technologies and sufficiently high-leveled degree knowledge of the issues of its efficiency in educational activity, conditions of introduction of such technologies in high school, construction of models of distance training. Authors of article have tried to close this

  3. Viewing the motion of human body parts activates different regions of premotor, temporal, and parietal cortex.

    Science.gov (United States)

    Wheaton, Kylie J; Thompson, James C; Syngeniotis, Ari; Abbott, David F; Puce, Aina

    2004-05-01

    Activation of premotor and temporoparietal cortex occurs when we observe others movements, particularly relating to objects. Viewing the motion of different body parts without the context of an object has not been systematically evaluated. During a 3T fMRI study, 12 healthy subjects viewed human face, hand, and leg motion, which was not directed at or did not involve an object. Activation was identified relative to static images of the same human face, hand, and leg in both individual subject and group average data. Four clear activation foci emerged: (1) right MT/V5 activated to all forms of viewed motion; (2) right STS activated to face and leg motion; (3) ventral premotor cortex activated to face, hand, and leg motion in the right hemisphere and to leg motion in the left hemisphere; and (4) anterior intraparietal cortex (aIP) was active bilaterally to viewing hand motion and in the right hemisphere leg motion. In addition, in the group data, a somatotopic activation pattern for viewing face, hand, and leg motion occurred in right ventral premotor cortex. Activation patterns in STS and aIP were more complex--typically activation foci to viewing two types of human motion showed some overlap. Activation in individual subjects was similar; however, activation to hand motion also occurred in the STS with a variable location across subjects--explaining the lack of a clear activation focus in the group data. The data indicate that there are selective responses to viewing motion of different body parts in the human brain that are independent of object or tool use.

  4. Teachers' Activities in Technology-Based Mathematics Lessons

    Science.gov (United States)

    Monaghan, John

    2004-01-01

    This paper focuses on high school mathematics teachers and what they do when they use digital technology in their lessons. It is essentially a discursive paper but it uses data from a project on teachers using technology to illustrate points. The main aim of the paper is to present an holistic account of factors influencing teachers' practice. A…

  5. Bibliography on Cold Regions Science and Technology. Volume 40, Part 2, 1986

    Science.gov (United States)

    1986-12-01

    EntaiMMBtal Imlarmttlam mt Data Center Environmental impacta aaaociated with coal development in the Kukpowruk, Nenana, and Beluga fields, Alaska (1980, 48p...7l hMive &Dd active microwave ltudia ol wet JDOWPKk propertia. a...,., A. T.C., et al, t1915, p.S716, 01111 .. I,. Wale <._ alnlalm aocl llimilar

  6. TRIZ TECHNOLOGY FORECASTING AS QFD INPUT WITHIN THE NPD ACTIVITIES

    Institute of Scientific and Technical Information of China (English)

    Coulibaly Solomani; Hua Zhongsheng; Shi Qin; Wang Wei

    2004-01-01

    As a result of the fierceness of business competition,companies,to remain competitive,have to charm their customers by anticipating their needs and being able to rapidly develop exciting new products for them.To overcome this challenge,technology forecasting is considered as a powerful tool in today's business environment,while there are as many success stories as there are failures,a good application of this method will give a good result.A methodology of integration of patterns or lines of technology evolution in TRIZ parlance is presented,which is also known as TRIZ technology forecasting,as input to the QFD process to design a new product.For this purpose,TRIZ technology forecasting,one of the TRIZ major tools,is discussed and some benefits compared to the traditional forecasting techniques are highlighted.Then a methodology to integrate TRIZ technology forecasting and QFD process is highlighted.

  7. National Educators' Workshop: Update 2003. Standard Experiments in Engineering, Materials Science, and Technology. Part 1

    Science.gov (United States)

    Prior, Edwin J. (Compiler); Jacobs, James A. (Compiler); Edmonson, William (Compiler); Wilkerson, Amy (Compiler)

    2004-01-01

    The 18th Annual National Educators Workshop [NEW:Update 2003] was a part of NASA Langley s celebration of the Centennial of Controlled, Powered Flight by Orville and Wilbur Wright on December 17, 1903. The conference proceedings from NEW:Update 2003 reflect the Flight 100 theme by first providing a historic perspective on the remarkable accomplishments of the Wright Brothers. The historical perspective set the stag for insights into aeronautics and aerospace structures and materials now and into the future. The NEW:Update 2003 proceedings provide valuable resources to educators and students in the form of visuals, experiments and demonstrations for classes/labs at levels ranging from precollege through college education.

  8. National Educators' Workshop: Update 2003. Standard Experiments in Engineering, Materials Science, and Technology. Part 2

    Science.gov (United States)

    Prior, Edwin J. (Compiler); Jacobs, James A. (Compiler); Edmonson, William (Compiler); Wilkerson, Amy (Compiler)

    2004-01-01

    The 18th Annual National Educators Workshop [NEW:Update 2003] was a part of NASA Langley s celebration of the Centennial of Controlled, Powered Flight by Orville and Wilbur Wright on December 17, 1903. The conference proceedings from NEW:Update 2003 reflect the Flight 100 theme by first providing a historic perspective on the remarkable accomplishments of the Wright Brothers. The historical perspective set the stag for insights into aeronautics and aerospace structures and materials now and into the future. The NEW:Update 2003 proceedings provide valuable resources to educators and students in the form of visuals, experiments and demonstrations for classes/labs at levels ranging from precollege through college education.

  9. A Trimodality Comparison of Volumetric Bone Imaging Technologies. Part I: Short-term Precision and Validity

    Science.gov (United States)

    Wong, Andy K. O.; Beattie, Karen A.; Min, Kevin K. H.; Webber, Colin E.; Gordon, Christopher L.; Papaioannou, Alexandra; Cheung, Angela M. W.; Adachi, Jonathan D.

    2016-01-01

    In vivo peripheral quantitative computed tomography (pQCT) and peripheral magnetic resonance imaging (pMRI) modalities can measure apparent bone microstructure at resolutions 200 μm or higher. However, validity and in vivo test-retest reproducibility of apparent bone microstructure have yet to be determined on 1.0 T pMRI (196 μm) and pQCT (200 μm). This study examined 67 women with a mean age of 74 ± 9 yr and body mass index of 27.65 ± 5.74 kg/m2, demonstrating validity for trabecular separation from pMRI, cortical thickness, and bone volume fraction from pQCT images compared with high-resolution pQCT (hr-pQCT), with slopes close to unity. However, because of partial volume effects, cortical and trabecular thickness of bone derived from pMRI and pQCT images matched hr-pQCT more only when values were small. Short-term reproducibility of bone outcomes was highest for bone volume fraction (BV/TV) and densitometric variables and lowest for trabecular outcomes measuring microstructure. Measurements at the tibia for pQCT images were more precise than at the radius. In part I of this 3-part series focused on trimodality comparisons of precision and validity, it is shown that pQCT images can yield valid and reproducible apparent bone structural outcomes, but because of longer scan time and potential for more motion, the pMRI protocol examined here remains limited in achieving reliable values. PMID:25129405

  10. EVALUATION OF SULFATE ATTACK ON SALTSTONE VAULT CONCRETE AND SALTSTONESIMCO TECHNOLOGIES, INC. PART1 FINAL REPORT

    Energy Technology Data Exchange (ETDEWEB)

    Langton, C

    2008-08-19

    This report summarizes the preliminary results of a durability analysis performed by SIMCO Technologies Inc. to assess the effects of contacting saltstone Vaults 1/4 and Disposal Unit 2 concretes with highly alkaline solutions containing high concentrations of dissolved sulfate. The STADIUM{reg_sign} code and data from two surrogate concretes which are similar to the Vaults 1/4 and Disposal Unit 2 concretes were used in the preliminary durability analysis. Simulation results for these surrogate concrete mixes are provided in this report. The STADIUM{reg_sign} code will be re-run using transport properties measured for the SRS Vaults 1/4 and Disposal Unit 2 concrete samples after SIMCO personnel complete characterization testing on samples of these materials. Simulation results which utilize properties measured for samples of Vaults 1/4 and Disposal Unit 2 concretes will be provided in Revision 1 of this report after property data become available. The modeling performed to date provided the following information on two concrete mixes that will be used to support the Saltstone PA: (1) Relationship between the rate of advancement of the sulfate front (depth of sulfate ion penetration into the concrete) and the rate of change of the concrete permeability and diffusivity. (2) Relationship between the sulfate ion concentration in the corrosive leachate and the rate of the sulfate front progression. (3) Equation describing the change in hydraulic properties (hydraulic conductivity and diffusivity) as a function of sulfate ion concentration in the corrosive leachate. These results have been incorporated into the current Saltstone PA analysis by G. Flach (Flach, 2008). In addition, samples of the Saltstone Vaults 1/4 and Disposal Unit 2 concretes have been prepared by SIMCO Technologies, Inc. Transport and physical properties for these materials are currently being measured and sulfate exposure testing to three high alkaline, high sulfate leachates provided by SRNL is

  11. Active materials for automotive adaptive forward lighting Part 1: system requirements vs. material properties

    Science.gov (United States)

    Keefe, Andrew C.; Browne, Alan L.; Johnson, Nancy L.

    2011-04-01

    Adaptive Frontlighting Systems (AFS in GM usage) improve visibility by automatically optimizing the beam pattern to accommodate road, driving and environmental conditions. By moving, modifying, and/or adding light during nighttime, inclement weather, or in sharp turns, the driver is presented with dynamic illumination not possible with static lighting systems The objective of this GM-HRL collaborative research project was to assess the potential of active materials to decrease the cost, mass, and packaging volume of current electric stepper-motor AFS designs. Solid-state active material actuators, if proved suitable for this application, could be less expensive than electric motors and have lower part count, reduced size and weight, and lower acoustic and EMF noise1. This paper documents Part 1 of the collaborative study, assessing technically mature, commercially available active materials for use as actuators. Candidate materials should reduce cost and improve AFS capabilities, such as increased angular velocity on swivel. Additional benefits to AFS resulting from active materials actuators were to be identified as well such as lower part count. In addition, several notional approaches to AFS were documented to illustrate the potential function, which is developed more fully in Part 2. Part 1 was successful in verifying the feasibility of using two active materials for AFS: shape memory alloys, and piezoelectrics. In particular, this demonstration showed that all application requirements including those on actuation speed, force, and cyclic stability to effect manipulation of the filament assembly and/or the reflector could be met by piezoelectrics (as ultrasonic motors) and SMA wire actuators.

  12. Technology of remote monitoring for nuclear activity monitoring

    Energy Technology Data Exchange (ETDEWEB)

    Kwack, Ehn Ho; Kim, Jong Soo; Yoon, Wan Ki; Park, Sung Sik; Na, Won Woo; An, Jin Soo; Cha, Hong Ryul; Kim, Jung Soo

    2000-05-01

    In a view of safeguards monitoring at nuclear facilities, the monitoring is changing to remote method so that this report is described to remote monitoring(RM) applying on commercial NPP in Korea. To enhance IAEA safeguards efficiency and effectiveness, IAEA is taking into account of remote monitoring system(RMS) and testing as a field trial. IRMP(International Remote Monitoring Project) in participating many nations for development of RMS is proceeding their project such as technical exchange and research etc. In case of our country are carrying out the research relevant RM since acceptance RMS at 7th ROK-IAEA safeguards implementation review meeting. With a view to enhancement the RMS, installation location and element technology of the RM equipment are evaluated in a view of safeguards in Korea LWRs, and proposed a procedure for national inspection application through remote data evaluation from Younggwang-3 NPP. These results are large valuable to use of national inspection at time point extending installation to all Korea PWR NPP. In case of CANDU, neutron, gamma measurement and basic concept of network using optical fiber scintillating detector as remote verification method for dry storage canister are described. Also RM basic design of spent fuel transfer campaign is described that unattended RM without inspector instead of performing in participating together with IAEA and national inspector. The transfer campaign means the spent fuel storage pond to dry storage canister for about two months every year. Therefore, positively participation of IAEA strength safeguards project will be increased transparency for our nuclear activity as well as contributed to national relevant industry.

  13. How Does Technology-Enabled Active Learning Affect Undergraduate Students' Understanding of Electromagnetism Concepts?

    Science.gov (United States)

    Dori, Yehudit Judy; Belcher, John

    2005-01-01

    Educational technology supports meaningful learning and enables the presentation of spatial and dynamic images, which portray relationships among complex concepts. The Technology-Enabled Active Learning (TEAL) Project at the Massachusetts Institute of Technology (MIT) involves media-rich software for simulation and visualization in freshman…

  14. Biological activities and phytochemical profiles of extracts from different parts of bamboo (Phyllostachys pubescens).

    Science.gov (United States)

    Tanaka, Akinobu; Zhu, Qinchang; Tan, Hui; Horiba, Hiroki; Ohnuki, Koichiro; Mori, Yasuhiro; Yamauchi, Ryoko; Ishikawa, Hiroya; Iwamoto, Akira; Kawahara, Hiroharu; Shimizu, Kuniyoshi

    2014-06-18

    Besides being a useful building material, bamboo also is a potential source of bioactive substances. Although some studies have been performed to examine its use in terms of the biological activity, only certain parts of bamboo, especially the leaves or shoots, have been studied. Comprehensive and comparative studies among different parts of bamboo would contribute to a better understanding and application of this knowledge. In this study, the biological activities of ethanol and water extracts from the leaves, branches, outer culm, inner culm, knots, rhizomes and roots of Phyllostachys pubescens, the major species of bamboo in Japan, were comparatively evaluated. The phytochemical profiles of these extracts were tentatively determined by liquid chromatography-mass spectrometry (LC-MS) analysis. The results showed that extracts from different parts of bamboo had different chemical compositions and different antioxidative, antibacterial and antiallergic activities, as well as on on melanin biosynthesis. Outer culm and inner culm were found to be the most important sources of active compounds. 8-C-Glucosylapigenin, luteolin derivatives and chlorogenic acid were the most probable compounds responsible for the anti-allergy activity of these bamboo extracts. Our study suggests the potential use of bamboo as a functional ingredient in cosmetics or other health-related products.

  15. Biological Activities and Phytochemical Profiles of Extracts from Different Parts of Bamboo (Phyllostachys pubescens

    Directory of Open Access Journals (Sweden)

    Akinobu Tanaka

    2014-06-01

    Full Text Available Besides being a useful building material, bamboo also is a potential source of bioactive substances. Although some studies have been performed to examine its use in terms of the biological activity, only certain parts of bamboo, especially the leaves or shoots, have been studied. Comprehensive and comparative studies among different parts of bamboo would contribute to a better understanding and application of this knowledge. In this study, the biological activities of ethanol and water extracts from the leaves, branches, outer culm, inner culm, knots, rhizomes and roots of Phyllostachys pubescens, the major species of bamboo in Japan, were comparatively evaluated. The phytochemical profiles of these extracts were tentatively determined by liquid chromatography-mass spectrometry (LC-MS analysis. The results showed that extracts from different parts of bamboo had different chemical compositions and different antioxidative, antibacterial and antiallergic activities, as well as on on melanin biosynthesis. Outer culm and inner culm were found to be the most important sources of active compounds. 8-C-Glucosylapigenin, luteolin derivatives and chlorogenic acid were the most probable compounds responsible for the anti-allergy activity of these bamboo extracts. Our study suggests the potential use of bamboo as a functional ingredient in cosmetics or other health-related products.

  16. A Review of Technology Education in Ireland; a Changing Technological Environment Promoting Design Activity

    Science.gov (United States)

    Leahy, Keelin; Phelan, Pat

    2014-01-01

    In Ireland, Technology Education's structure and organisation across the levels of education is not delivered or governed in a coherent manner. Technology Education in primary level education, for students between 5 and 12 years of age, does not explicitly exist as a separate subject. In primary level education, Social, Environmental and…

  17. A Review of Technology Education in Ireland; a Changing Technological Environment Promoting Design Activity

    Science.gov (United States)

    Leahy, Keelin; Phelan, Pat

    2014-01-01

    In Ireland, Technology Education's structure and organisation across the levels of education is not delivered or governed in a coherent manner. Technology Education in primary level education, for students between 5 and 12 years of age, does not explicitly exist as a separate subject. In primary level education, Social, Environmental and…

  18. Mobile satellite communications technology - A summary of NASA activities

    Science.gov (United States)

    Dutzi, E. J.; Knouse, G. H.

    1986-01-01

    Studies in recent years indicate that future high-capacity mobile satellite systems are viable only if certain high-risk enabling technologies are developed. Accordingly, NASA has structured an advanced technology development program aimed at efficient utilization of orbit, spectrum, and power. Over the last two years, studies have concentrated on developing concepts and identifying cost drivers and other issues associated with the major technical areas of emphasis: vehicle antennas, speech compression, bandwidth-efficient digital modems, network architecture, mobile satellite channel characterization, and selected space segment technology. The program is now entering the next phase - breadboarding, development, and field experimentation.

  19. Comparing World Economic and Net Energy Metrics, Part 1: Single Technology and Commodity Perspective

    Directory of Open Access Journals (Sweden)

    Carey W. King

    2015-11-01

    Full Text Available We translate between biophysical and economic metrics that characterize the role of energy in the economy. Specifically, using data from the International Energy Agency, we estimate the energy intensity ratio (EIR, a price-based proxy for a power return ratio (PRR ∼ P out / P invested . The EIR is a useful metric, because for most countries and energy commodities, it can indicate the biophysical trends of net energy when data are too scarce to perform an original net energy analysis. We calculate EIR for natural gas, coal, petroleum and electricity for forty-four countries from 1978 to 2010. Global EIR values generally rise from 1978 to 1998, decline from 1998 to 2008 and then slightly rebound. These trends indicate one interpretation of the net energy of the world economy. To add perspective to our recent, but short, time series, we perform the same calculations for historical England and United Kingdom energy prices to demonstrate that a given energy price translates to different PRRs (EIR in this case depending on the structure of the economy and technology. We review the formulation of PRRs and energy return ratios (ERR ∼ E out / E invested to indicate why PRRs translate to (the inverse of energy prices and ERRs translate to (the inverse of energy costs. We show why for any given value of an ERR or PRR, there is not a single corresponding energy cost or price, and vice versa. These principles in turn provide the basis to perform better modeling of future energy scenarios (e.g., low-carbon transition by considering the relationship between economic metrics (cost and price and biophysical metrics (energy and power return ratios based on energy, material and power flows.

  20. Novel fracture technology proves marginal Viking prospect economic, part I: Implementation of fracture treatments

    Energy Technology Data Exchange (ETDEWEB)

    Rylance, M.; Haidar, S.; Sykes, G.; Pyecroft, J.

    1996-12-31

    This paper describes the implementation of a twin propped fracture stimulation treatment, carried out on the 49/17-12 exploration well of the Viking Wx structure, in the Southern North Sea (SNS). Initial appraisal of the potential field development was disappointing, the well flowing at a rate of only 8.5 MM.scf/d, indicating a field development to be uneconomic. Stimulation by a joint Conoco/BPX team, employing novel fracturing technology, provided dramatic increases in production to ca. 43.5 MM.scf/d with less applied drawdown. The design approaches employed during these treatments could have potential for widespread application to other SNS gas fields. In this paper critical pre-treatment testing and reasoning behind operational decisions are discussed. In a companion paper the post stimulation rates/testing and well clean-up are described. Several key aspects of these treatments included: the use of two stacked fractures in order to successfully place proppant across the entire 830 ft reservoir section; the use of a Step Down Test (SDT) to identify the nature of high near wellbore pressure losses and subsequent removal using sand slugs; the use of a newly developed dual-coat partially curable Resin Coated Proppant (RCP) product, never previously utilized in the field, to minimize the opportunity for prolonged proppant back production and a seawater Mini-Frac to attempt to help identify the true in-situ permeability. Finally, the use of a Surface Read-Out (SRO) gauge enabled real-time decision making to optimize the treatment schedule.

  1. Fracture mechanics analysis on Smart-Cut technology. Part 2: Effect of bonding flaws

    Institute of Scientific and Technical Information of China (English)

    Bin Gu; Hongyuan Liu; Yiu-Wing Mai; Xi Qiao Feng; Shou Wen Yu

    2009-01-01

    In Part 2 of the paper on the Smart-Cut process,the effects of bonding flaws characterized by the size and internal pressure before and after splitting are studied by using fracture mechanics models. It is found that the bonding flaws with large size are prone to cause severe deviation of defect growth, leading to a non-transferred area of thin layer when splitting. In a practical Smart-Cut process where the internal pressure of bonding flaws is very small,large interfacial defects always promote defect growth in the splitting process. Meanwhile, increasing the internal pressure of the bonding flaws decreases the defect growth and its deviation before splitting. The mechanism of relaxation of stiffener constraint is proposed to clarify the effect of bonding flaws. Moreover, the progress of the splitting process is analyzed when bonding flaws are present. After splitting,those bonding flaws with large size and high internal pressure are vulnerable for the blistering of the thin film during high-temperature annealing.

  2. Stamped coal cakes in cokemaking technology Part 1 - A parameter study on stampability

    Energy Technology Data Exchange (ETDEWEB)

    Abel, F.; Rosenkranz, J.; Kuyumcu, H.Z. [Technical University of Berlin, Berlin (Germany)

    2009-07-15

    Coking of coal blends using high volatile coals with poor caking properties to produce a high quality coke for blast furnace application can be achieved by compacting the whole coal blend before pyrolysis in the so called stamp charge operation. Using stamp charging not only improves the flexibility of the coke making plant using cost efficient raw materials, but oven throughput is also increased. Therefore, in recent years, densification of coals has been introduced even to coals with good carbonisation properties when heat recovery ovens are used. At the Department for Mechanical Process Engineering and Solids Processing of the Technical University Berlin, the two subprocesses, densification and strengthening during stamping, were theoretically and experimentally investigated. The research work aims on the development of an integrated mathematical model, allowing the calculation of cake density and strength of the coal cake for a given coal blend depending on the stamping energy. The first part of this paper defines the overall process objectives and presents results from systematic investigations of the effects of several coal properties on the so called stampability as the integral model parameter for compacting. Surface moisture, coal granulometry and mechanical properties have significant influence on the densification. The incorporation of these parameters into the model allows the differentiated calculation of the cake density.

  3. Stamped coal cakes in cokemaking technology Part 2 - The investigation of cake strength

    Energy Technology Data Exchange (ETDEWEB)

    Abel, F.; Rosenkranz, J.; Kuyumcu, H.Z. [Technical University of Berlin, Berlin (Germany)

    2009-07-15

    Coking of coal blends using high volatile coals with poor caking properties to produce a high quality coke for blast furnace application can be achieved by compacting the whole coal blend before the pyrolysis in the so called stamp charge operation. Using stamp charging not only improves the flexibility of the cokemaking plant using cost efficient raw materials, but also increases oven throughput. Therefore, in recent years, densification of coals has been introduced even to coals with good carbonisation properties when heat recovery ovens are used. At the Department for Mechanical Process Engineering and Solids Processing of the Technical University Berlin, the two subprocesses, densification and strengthening during stamping, were theoretically and experimentally investigated. The research work aims on the development of an integrated mathematical model, allowing the calculation of cake density and strength of the coal cake for a given coal blend and as a function of the stamping energy. In the first part of the paper, investigations on the stampability of coal blends were reported. In this paper, the development of a new strength test device for the systematic investigation of mechanical strength of coal compacts produced by stamping is described. Results from compressive strength tests indicate an elastic-plastic behaviour with failure by plastic fracture. Shear test results show similarity to the yield limit description in soil mechanics.

  4. Antioxidant activity and concentration of secondary metabolites in the plant parts of Euphorbia cyparissias L.

    Directory of Open Access Journals (Sweden)

    Stanković Milan S.

    2014-01-01

    Full Text Available This paper presents the results of a screening of nine different extracts from the plant parts (leaves, flowers and stems of Euphorbia cyparissias for total phenolic content, concentration of flavonoids and in vitro antioxidant activity. Main reason for this study is the determination of these parameters and their variability among plant parts and plant extracts obtained by different solvents, respectively. Obtained amounts for total phenolic content ranged from 10.76 to 40.72 mg GA/g. The concentration of flavonoids varied from 34.32 to 134.34 mg Ru/g. The IC50 values of antioxidant activity varied from 88.48 to 2891.08 μg/ml. Results obtained from the different plant parts were of uneven value. Great variability of the studied parameters was observed when comparing the effectiveness of the used solvents. The acetone extracts from stems contain the greatest concentrations of phenolic compounds, especially flavonoids, and showed high antioxidant activity. According to our research, plant parts from E. cyparissias can be regarded as promising candidates for natural plant sources with high value of biological compounds.

  5. TECHNOLOGIES OF INITIATING STUDENTS INTO INDEPENDENT (SELF-GUIDED ACTIVITY IN SUPPLEMENTARY DISTANCE LEARNING

    Directory of Open Access Journals (Sweden)

    Irina V. Abakumova

    2016-12-01

    Full Text Available The research in question investigates the technologies of initiating independent activity within the framework of distance learning and their psychological aspects. The authors’ classification of educational technologies of initiating students into independent cognitive activity is presented. Such technologies utilize various psychological mechanisms of exciting students’ cognitive interest, intensifying cognitive processes, developing independent activity skills, and, as a result, increase motivation for independent activity and learning on the whole. These include such types of technologies as developmental technologies, interactive technologies, technologies of information transfer, technologies of meaning-making initiation. The research of the attitude of distance learning educators to independent activity of students and the content of the academic courses were done at Moodle-based education programs. The findings show the differences in retention rate among distance learning educators whose competence in terms of initiating students into independent (self-guided activity varies. It’s emphasized that interactive lectures, videoconferences, audio-visual aids, interactive seminars, glossaries, interactive tests are considered the most efficient technologies in initiating students into independent (self-guided activity. The obtained results have made it possible to stress the developmental effect of distance learning technologies and the technologies of initiating students into independent (self-guided activity in various psychic spheres of students: cognitive, individual, emotional. We mention the changes in motivational sphere of students and their meaning-making activity. In the course of correct development of distance learning we notice the development of voluntary and nonvoluntary cognitive activity. A student starts actively participating in educational process, he becomes the creator of his own world.

  6. Technology station in electronics at the Tshwane University of Technology: strengthening technological innovation activities amongst SMEs and students

    CSIR Research Space (South Africa)

    Jacobs, SJ

    2009-01-01

    Full Text Available This article focuses on how the competence and capacity within the Faculty of Engineering and the Built Environment, specifically the electronic/electrical discipline, at the Tshwane University of Technology is utilised to support Small Medium...

  7. Forecasting of innovative activity on the basis of application of technology of Foresight

    Directory of Open Access Journals (Sweden)

    Nazarova Natalia Leonidovna

    2011-10-01

    Full Text Available In article the basic questions of forecasting of innovative activity of economic systems are considered. Forsyte's bases are considered. Necessity, importance, success of application of technology of Forsyte for forecasting of innovative activity are proved.

  8. Activity in part of the neural correlates of consciousness reflects integration.

    Science.gov (United States)

    Eriksson, Johan

    2017-07-25

    Integration is commonly viewed as a key process for generating conscious experiences. Accordingly, there should be increased activity within the neural correlates of consciousness when demands on integration increase. We used fMRI and "informational masking" to isolate the neural correlates of consciousness and measured how the associated brain activity changed as a function of required integration. Integration was manipulated by comparing the experience of hearing simple reoccurring tones to hearing harmonic tone triplets. The neural correlates of auditory consciousness included superior temporal gyrus, lateral and medial frontal regions, cerebellum, and also parietal cortex. Critically, only activity in left parietal cortex increased significantly as a function of increasing demands on integration. We conclude that integration can explain part of the neural activity associated with the generation conscious experiences, but that much of associated brain activity apparently reflects other processes. Copyright © 2017. Published by Elsevier Inc.

  9. Logistic distributed activation energy model--Part 1: Derivation and numerical parametric study.

    Science.gov (United States)

    Cai, Junmeng; Jin, Chuan; Yang, Songyuan; Chen, Yong

    2011-01-01

    A new distributed activation energy model is presented using the logistic distribution to mathematically represent the pyrolysis kinetics of complex solid fuels. A numerical parametric study of the logistic distributed activation energy model is conducted to evaluate the influences of the model parameters on the numerical results of the model. The parameters studied include the heating rate, reaction order, frequency factor, mean of the logistic activation energy distribution, standard deviation of the logistic activation energy distribution. The parametric study addresses the dependence on the forms of the calculated α-T and dα/dT-T curves (α: reaction conversion, T: temperature). The study results would be very helpful to the application of the logistic distributed activation energy model, which is the main subject of the next part of this series.

  10. Capsicum--production, technology, chemistry, and quality. Part III. Chemistry of the color, aroma, and pungency stimuli.

    Science.gov (United States)

    Govindarajan, V S

    1986-01-01

    The spice capsicum, the fruits of the genus Capsicum (Family Solanaceae), is a very popular food additive in many parts of the world, valued for the important sensory attributes of color, pungency, and aroma. A large number of varieties are widely cultivated and traded. The characteristic carotenoids of the bright red paprika and cayenne-type chillies, the high character impact aroma stimuli, the methoxy pyrazine of green bell capsicum, the esters of ripe tabasco and the highly potent pungency stimuli, and the capsaicinoids of African and other Asian varieties of chillies, have been of great interest to chemists and biochemists. Research workers in other disciplines such as genetics and breeding, agriculture, and technology have been interested in this spice to develop new varieties with combinations of different optimal levels of the stimuli for the sensory attributes and to maximize production of storable products for specific end uses. Physiologists have been intensely studying the action of the highly potent pungency stimuli and social psychologists the curious aspect of growing acceptance and preference for the initially unacceptable pungency sensation. In the sequential review of all these aspects of the fruit spice Capsicum, the earlier two parts covered history, botany, cultivation and primary processing, and processed products, standards, world production, and trade. In Part III, the chemistry, the compositional variations, synthesis and biosynthesis of the functional components, the carotenoids, the volatiles, and the capsaicinoids are comprehensively reviewed.

  11. TECHNOLOGY AND INNOVATION IN HUMAN ACTIVITY OF THE INFORMATION AGE: INFORMATION CHALLENGES AND TECHNOLOGIES

    Directory of Open Access Journals (Sweden)

    Oleksandr Yu. Burov

    2015-10-01

    Full Text Available It is discussed the role of technology development, especially in connection with social transformation and transition of humanity to the era of information/knowledge, analyzed the trend accelerating technological change and its relation to civil and military changes in society. It is emphasized the fundamental novelty of the information age, namely the transition of mankind from the production of material products mainly to intangible (information, knowledge, human cognitive processes. It is emphasized that ICT gain not only growing importance, but become a driving force of human civilization. The basic features of education in the information age, including ICT educational purpose out technology for distance education are described.

  12. Idaho Nuclear Technology and Engineering Center Low-Activity Waste Process Technology Program FY-99 Status Report

    Energy Technology Data Exchange (ETDEWEB)

    Herbst, Alan Keith; Mc Cray, John Alan; Kirkham, Robert John; Pao, Jenn Hai; Hinckley, Steve Harold

    1999-10-01

    The Low-Activity Waste Process Technology Program at the Idaho Nuclear Technology and Engineering Center (INTEC) anticipates that large volumes of low-level/low-activity wastes will need to be grouted prior to near-surface disposal. During fiscal year 1999, grout formulations were studied for transuranic waste derived from INTEC liquid sodium-bearing waste and for projected newly generated low-level liquid waste. Additional studies were completed on radionuclide leaching, microbial degradation, waste neutralization, and a small mockup for grouting the INTEC underground storage tank residual heels.

  13. Idaho Nuclear Technology and Engineering Center Low-Activity Waste Process Technology Program FY-99 Status Report

    Energy Technology Data Exchange (ETDEWEB)

    A. K. Herbst; J. A. McCray; R. J. Kirkham; J. Pao; S. H. Hinckley

    1999-09-30

    The Low-Activity Waste Process Technology Program at the Idaho Nuclear Technology and Engineering Center (INTEC) anticipates that large volumes of low-level/low-activity wastes will need to be grouted prior to near-surface disposal. During fiscal year 1999, grout formulations were studied for transuranic waste derived from INTEC liquid sodium-bearing waste and for projected newly generated low-level liquid waste. Additional studies were completed on radionuclide leaching, microbial degradation, waste neutralization, and a small mockup for grouting the INTEC underground storage tank residual heels.

  14. Oil atlas: National Petroleum Technology Office activities across the United States

    Energy Technology Data Exchange (ETDEWEB)

    Tiedemann, H.A.

    1998-03-01

    Petroleum imports account for the largest share of the US trade deficit. Over one-third of the 1996 merchandise trade deficit is attributed to imported oil. The good news is that substantial domestic oil resources, both existing and yet-to-be-discovered, can be recovered using advanced petroleum technologies. The Energy Information Agency estimates that advanced technologies can yield 10 billion additional barrels, equal to $240 billion in import offsets. The US Department of Energy`s National Petroleum Technology Office works with industry to develop advanced petroleum technologies and to transfer successful technologies to domestic oil producers. This publication shows the locations of these important technology development efforts and lists DOE`s partners in this critical venture. The National Petroleum Technology Office has 369 active technology development projects grouped into six product lines: Advanced Diagnostics and Imaging Systems; Advanced Drilling, Completion, and Stimulation; Reservoir Life Extension and Management; Emerging Processing Technology Applications; Effective Environmental Protection; and Crosscutting Program Areas.

  15. Cortical hyperpolarization-activated depolarizing current takes part in the generation of focal paroxysmal activities

    Science.gov (United States)

    Timofeev, Igor; Bazhenov, Maxim; Sejnowski, Terrence; Steriade, Mircea

    2002-01-01

    During paroxysmal neocortical oscillations, sudden depolarization leading to the next cycle occurs when the majority of cortical neurons are hyperpolarized. Both the Ca2+-dependent K+ currents (IK(Ca)) and disfacilitation play critical roles in the generation of hyperpolarizing potentials. In vivo experiments and computational models are used here to investigate whether the hyperpolarization-activated depolarizing current (Ih) in cortical neurons also contributes to the generation of paroxysmal onsets. Hyperpolarizing current pulses revealed a depolarizing sag in ≈20% of cortical neurons. Intracellular recordings from glial cells indirectly indicated an increase in extracellular potassium concentration ([K+]o) during paroxysmal activities, leading to a positive shift in the reversal potential of K+-mediated currents, including Ih. In the paroxysmal neocortex, ≈20% of neurons show repolarizing potentials originating from hyperpolarizations associated with depth-electroencephalogram positive waves of spike-wave complexes. The onset of these repolarizing potentials corresponds to maximal [K+]o as estimated from dual simultaneous impalements from neurons and glial cells. Computational models showed how, after the increased [K+]o, the interplay between Ih, IK(Ca), and a persistent Na+ current, INa(P), could organize paroxysmal oscillations at a frequency of 2–3 Hz. PMID:12089324

  16. Antinociceptive Activity of Stephanolepis hispidus Skin Aqueous Extract Depends Partly on Opioid System Activation

    Directory of Open Access Journals (Sweden)

    Hugo Castro-Faria-Neto

    2013-04-01

    Full Text Available Stephanolepis hispidus is one of the most common filefish species in Brazil. Its skin is traditionally used as a complementary treatment for inflammatory disorders. However, there are very few studies on chemical and pharmacological properties using the skin of this fish. This study was undertaken in order to investigate the effect of aqueous crude extract of S. hispidus skin (SAE in different nociception models. Here, we report that intraperitoneal administration of SAE inhibited the abdominal constrictions induced by acetic acid in mice. In addition to the effect seen in the abdominal constriction model, SAE was also able to inhibit the hyperalgesia induced by carrageenan and prostaglandin E2 (PGE2 in mice. This potent antinociceptive effect was observed in the hot plate model too, but not in tail-flick test. Naloxone, an opioid receptor antagonist, was able to block the antinociceptive effect of SAE in the abdominal constriction and hot plate models. In addition, SAE did not present cytotoxic or genotoxic effect in human peripheral blood cells. Our results suggest that aqueous crude extract from S. hispidus skin has antinociceptive activity in close relationship with the partial activation of opioid receptors in the nervous system. Moreover, aqueous crude extract from S. hispidus skin does not present toxicity and is therefore endowed with the potential for pharmacological control of pain.

  17. In vitro antioxidant and antiproliferative activities of methanolic plant part extracts of Theobroma cacao.

    Science.gov (United States)

    Baharum, Zainal; Akim, Abdah Md; Taufiq-Yap, Yun Hin; Hamid, Roslida Abdul; Kasran, Rosmin

    2014-11-10

    The aims of this study were to determine the antioxidant and antiproliferative activity of the following Theobroma cacao plant part methanolic extracts: leaf, bark, husk, fermented and unfermented shell, pith, root, and cherelle. Antioxidant activity was determined using 2,2-diphenyl-2-picrylhydrazyl (DPPH), thiobarbituric acid-reactive substances (TBARS), and Folin-Ciocalteu assays; the 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium (MTT) assay was used to determine antiproliferative activity. The root extract had the highest antioxidant activity; its median effective dose (EC50) was 358.3±7.0 µg/mL and total phenolic content was 22.0±1.1 g GAE/100 g extract as compared to the other methanolic plant part extracts. Only the cherelle extract demonstrated 10.4%±1.1% inhibition activity in the lipid peroxidation assay. The MTT assay revealed that the leaf extract had the highest antiproliferative activity against MCF-7 cells [median inhibitory concentration (IC50)=41.4±3.3 µg/mL]. Given the overall high IC50 for the normal liver cell line WRL-68, this study indicates that T. cacao methanolic extracts have a cytotoxic effect in cancer cells, but not in normal cells. Planned future investigations will involve the purification, identification, determination of the mechanisms of action, and molecular assay of T. cacao plant extracts.

  18. In Vitro Antioxidant and Antiproliferative Activities of Methanolic Plant Part Extracts of Theobroma cacao

    Directory of Open Access Journals (Sweden)

    Zainal Baharum

    2014-11-01

    Full Text Available The aims of this study were to determine the antioxidant and antiproliferative activity of the following Theobroma cacao plant part methanolic extracts: leaf, bark, husk, fermented and unfermented shell, pith, root, and cherelle. Antioxidant activity was determined using 2,2-diphenyl-2-picrylhydrazyl (DPPH, thiobarbituric acid-reactive substances (TBARS, and Folin-Ciocalteu assays; the 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium (MTT assay was used to determine antiproliferative activity. The root extract had the highest antioxidant activity; its median effective dose (EC50 was 358.3 ± 7.0 µg/mL and total phenolic content was 22.0 ± 1.1 g GAE/100 g extract as compared to the other methanolic plant part extracts. Only the cherelle extract demonstrated 10.4% ± 1.1% inhibition activity in the lipid peroxidation assay. The MTT assay revealed that the leaf extract had the highest antiproliferative activity against MCF-7 cells [median inhibitory concentration (IC50 = 41.4 ± 3.3 µg/mL]. Given the overall high IC50 for the normal liver cell line WRL-68, this study indicates that T. cacao methanolic extracts have a cytotoxic effect in cancer cells, but not in normal cells. Planned future investigations will involve the purification, identification, determination of the mechanisms of action, and molecular assay of T. cacao plant extracts.

  19. Flavonoid Analyses and Antimicrobial Activity of Various Parts of Phaleria macrocarpa (Scheff. Boerl Fruit

    Directory of Open Access Journals (Sweden)

    Ehsan Oskoueian

    2011-05-01

    Full Text Available Phaleria macrocarpa (Scheff. Boerl (Thymelaceae is commonly known as ‘Crown of God’, ‘Mahkota Dewa’, and ‘Pau’. It originates from Papua Island, Indonesia and it grows in tropical areas. Empirically, it is potent in treating the hypertensive,diabetic, cancer and diuretic patients. It has a long history of ethnopharmacological usage, and the lack of information about its biological activities led us to investigate the possible biological activities by characterisation of flavonoids and antimicrobial activity of various part of P. macrocarpa against pathogenic bacteria and fungi. The results showed that kaempferol, myricetin, naringin, and rutin were the major flavonoids present in the pericarp while naringin and quercetin were found in the mesocarp and seed. Furthermore, the antibacterial activity of different parts of P. macrocarpa fruit showed a weak ability to moderate antibacterial activity against pathogenic tested bacteria (inhibition range: 0.93–2.17 cm at concentration of 0.3 mg/disc. The anti fungi activity was only found in seed extract against Aspergillus niger (1.87 cm at concentration of 0.3 mg/well. From the results obtained, P. macrocarpa fruit could be considered as a natural antimicrobial source due to the presence of flavonoid compounds.

  20. Manufacturing technologies for photovoltaics and possible means of their development in Russia (Review). Part 1: General approach to the development of photoelectric converters and basic silicon technologies

    Science.gov (United States)

    Tarasenko, A. B.; Popel', O. S.

    2015-11-01

    The state and key tendencies of the development of basic technologies for manufacture of photoelectric converters (PECs) in the world are considered, and their advantages and disadvantages are discussed. The first part of the review gives short information on the development of photovoltaics in the world and planes of the development of solar power plants in Russia. Total power of photoelectric plants operating in various countries in 2015 exceeded 150 GW and increased in the last ten years with a rate of approximately 50% per year. Russia made important state decisions on the support of the development of renewable power engineering and developed mechanisms, which were attractive for business, on the stimulation of building of the network of solar power plants with a total power to 1.5 GW in the country to 2020. At the same time, the rigid demands are made with respect to the localization of the production of components of these plants that opens new abilities for the development of the domestic production of photovoltaics manufacture. Data on the efficiency of PECs of various types that are attained in the leading laboratories of the world are given. Particular emphasis has been placed on the consideration of basic silicon technologies of PEC manufacture, which had the widest commercial application. The basic methods for production of polycrystalline silicon and making single-crystal and multicrystal silicon are described. Fundamentals of making techniques for plates, PECs, and photoelectric modules based on single-crystal and polycrystalline silicon are considered. The second part will be devoted to modifications of manufacturing techniques for photoelectric converters, enhancement methods for contact structures, and recommendations of authors with respect to the choice of prospective technologies for the expansion of PEC production in Russia. It will involve formulations and substantiations of the most promising lines of the development of photoelectric

  1. Application of disintigratory technology for the modification of materials used in the construction of wells. Part II.

    Directory of Open Access Journals (Sweden)

    AGZAMOV Farit Akramovich,

    2017-06-01

    Full Text Available Disintegrator technology was widely used in the construction industry and in the oil and gas industry. In the process of drilling wells, powdery materials are used, the quality of which often determines the results of the well construction as an engineering structure. The application of disintegrator technology in the processing of clay powders which are one of the main components used to produce washing liquids has shown the high efficiency of this technology. One of the main multi-tonnage materials used in the construction of deep wells for oil and gas is Portland cement. However, the specific conditions of the well and work performance technology establish additional requirements for both grouting cement and also mortar and stone which are obtained from this binder. That refers to high water-cement ratios, rigid frames for density, water loss, sedimentation stability of solutions, high strength and low permeability of the stone. High corrosive activity of reservoir fluids and high temperatures, which often exceeds 100–150оC, set increased requirements to corrosion and thermal resistance of hardening products. The use of modifying additives and mechanoactivation of cements and grouting mixtures allows us to effectively solve these problems. The results of the study how mechanochemical activation of siliceous additives effects on the structure of their surfaces are presented and the increase in the rate of interaction of silica with calcium hydroxide, which is necessary forincreasing the life of a plugging stone, is experimentally proven. Improved structure of the produced cement stone after the disintegration treatment of cement is shown.

  2. Water activity and activation diameters from hygroscopicity data – Part I: Theory and application to inorganic salts

    Directory of Open Access Journals (Sweden)

    B. Ervens

    2005-01-01

    Full Text Available A method is described that uses particle hygroscopicity measurements, made with a humidified tandem differential mobility analyzer (HTDMA, to determine solution water activity as a function of composition. The use of derived water activity data in computations 5 determining the ability of aerosols to serve as cloud condensation nuclei (CCN is explored. Results for sodium chloride and ammonium sulfate are shown in Part I. In Part II (Koehler et al., to be submitted, 2005, results are reported for several atmospherically-relevant dicarboxylic acids: malonic acid, glutaric acid and oxalic acid. The methodology yields solution water activities and critical dry diameters for 10 ammonium sulfate and sodium chloride in good agreement with previously published data. The approach avoids the assumptions required for application of simplified and modified K¨ohler equations to predict CCN activity, most importantly, knowledge of the molecular weight and the degree of dissociation of the soluble species. Predictions of the dependence of water activity on the mass fraction of aerosol species are sensitive 15 to the assumed dry density, but predicted critical dry diameters are not.

  3. Antioxidative activity of different parts of the plant Lepidium sativum Linn

    Directory of Open Access Journals (Sweden)

    Jency Malar

    2014-09-01

    Full Text Available Lepidium sativum Linn. has been used in traditional and folklore medicine for the treatment of bronchial asthma, diabetes, local and rheumatic pain. An ethanolic extract of cress (L. sativum L. shoot, leaf, stem and seed has been studied for antioxidative active against 1,1-diphenyl-2-picrylhydrazyl (DPPH, total glutathione S-transferase assay, reduced glutathione activity, reducing power (Fe3+–Fe2+ Transformation Ability, and ascorbic acid is also estimated. The percentage yields of free radical scavenging activity (DPPH obtained for different ethanolic extracts of L. sativum. Supreme scavenging activity was detected in shoot (12.19 ± 02% and least in stem (2.69 ± 05%. The activity of total glutathione S-transferase enzyme was found to be more in seed (9600 ± 56.3 μg/ml than other plant parts. The reduced glutathione content of the ethanolic extracts of L. sativum was found to be more in leaf (9 ± 0.2 μg/ml. In the reducing power assay, ethanolic extracts gives the optical density in increasing concentration in all plant parts it shows that it has the reducing ability of Fe3+–Fe2+. Presence of vitamin C was tested. It was found that the shoot extract has highest amount of vitamin C. The results of present data were shown that the ethanolic extract of L. sativum L. plant parts have contributed high potential in vitro antioxidant activity.

  4. Final Technical Report summarizing Purdue research activities as part of the DOE JET Topical Collaboration

    Energy Technology Data Exchange (ETDEWEB)

    Molnar, Denes [Purdue Univ., West Lafayette, IN (United States). Dept. of Physics and Astronomy

    2015-09-01

    This report summarizes research activities at Purdue University done as part of the DOE JET Topical Collaboration. These mainly involve calculation of covariant radiative energy loss in the (Djordjevic-)Gyulassy-Levai-Vitev ((D)GLV) framework for relativistic A+A reactions at RHIC and LHC energies using realistic bulk medium evolution with both transverse and longitudinal expansion. The single PDF file provided also includes a report from the entire JET Collaboration.

  5. Essential oil composition and antioxidant activity of aerial parts of Grindelia robusta from Central Italy.

    Science.gov (United States)

    Fraternale, Daniele; Giamperi, Laura; Bucchini, Anahi; Ricci, Donata

    2007-09-01

    The chemical composition of the essential oil obtained from Grindelia robusta aerial parts from central Italy was analyzed by GC and GC/MS and 45 components were identified. Borneol (15.2%), alpha pinene (10.3%), trans-pinocarveol (7.0%), bornyl acetate (4.5%), limonene (4.3%) were the main components. The antioxidant activity of the essential oil was evaluated using the DPPH and 5-lipoxygenase tests.

  6. Flavonol glycosides from the aerial parts of Gynostemma pentaphyllum and their antioxidant activity.

    Science.gov (United States)

    Jang, Hari; Lee, Jin Woo; Lee, Chul; Jin, Qinghao; Lee, Myung Koo; Lee, Chong Kil; Lee, Mi Kyeong; Hwang, Bang Yeon

    2016-09-01

    The phytochemical investigation of the aerial parts of Gynostemma pentaphyllum led to the isolation of a new flavonol glycoside, gynopentaphylloside (1), along with seven known compounds (2-8). The structure of the new compound was determined on the basis of 1D, 2D NMR and HRESIMS data as well as acid hydrolysis. The antioxidant activity of the isolates was evaluated by a 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging assay.

  7. EVALUATION OF ANTIMICROBIAL AND ANTI-HISTAMINE ACTIVITY OF THE AERIAL PARTS OF TEPHROSIA PURPUREA L.

    OpenAIRE

    Duraisami Nivedithadevi; Paramasivam Manivannan; Ramamurthy Somasundaram

    2012-01-01

    Tephrosia purpurea (Fabaceae) has been used as a medicinal plant in all over India. This plant is a much branched perennial herb. Roots are given orally against any type of poisoning such as snakebite and the aerial parts were used for hydrophobia, asthma, cough, heart disease and kidney problems. Anti-microbial activity of 50% alcoholic extract with different concentrations were tested against the fungal strains like Aspergillus fumigates, Aspergillus niger, Ganoderma lucida and Candida alb...

  8. Active stabilization of the optical part in fiber optic quantum cryptography

    Science.gov (United States)

    Balygin, K. A.; Klimov, A. N.; Kulik, S. P.; Molotkov, S. N.

    2016-03-01

    The method of active stabilization of the polarization and other parameters of the optical part of a two-pass fiber optic quantum cryptography has been proposed and implemented. The method allows the completely automated maintenance of the visibility of interference close to an ideal value ( V ≥ 0.99) and the reduction of the instrumental contribution to the error in primary keys (QBER) to 0.5%.

  9. Neutron Activation Analysis of Soil Samples from Different Parts of Edirne in Turkey*

    Science.gov (United States)

    Zaim, N.; Dogan, C.; Camtakan, Z.

    2016-05-01

    The concentrations of constituent elements were determined in soil samples collected from different parts of the Maritza Basin, Edirne, Turkey. Neutron activation analysis, an extremely accurate technique, and the comparator method (using a standard) were applied for the first time in this region. After preparing the soil samples for neutron activation analysis, they were activated with thermal neutrons in a nuclear reactor, TRIGA-MARK II, at Istanbul Technical University. The activated samples were analyzed using a high-efficiency high-purity germanium detector, and gamma spectrometry was employed to determine the elemental concentration in the samples. Eight elements (chromium, manganese, cobalt, zinc, arsenic, molybdenum, cadmium, and barium) were qualitatively and quantitatively identified in 36 samples. The concentrations of some elements in the soil samples were high compared with values reported in the literature.

  10. A Hybrid Multi-Criteria Decision Model for Technological Innovation Capability Assessment: Research on Thai Automotive Parts Firms

    Directory of Open Access Journals (Sweden)

    Sumrit Detcharat

    2013-01-01

    Full Text Available The efficient appraisal of technological innovation capabilities (TICs of enterprises is an important factor to enhance competitiveness. This study aims to evaluate and rank TICs evaluation criteria in order to provide a practical insight of systematic analysis by gathering the qualified experts’ opinions combined with three methods of multi-criteria decision making approach. Firstly, Fuzzy Delphi method is used to screen TICs evaluation criteria from the recent published researches. Secondly, the Analytic Hierarchy Process is utilized to compute the relative important weights. Lastly, the VIKOR method is used to rank the enterprises based on TICs evaluation criteria. An empirical study is applied for Thai automotive parts firms to illustrate the proposed methods. This study found that the interaction between criteria is essential and influences TICs; furthermore, this ranking development of TICs assessment is also one of key management tools to simply facilitate and offer a new mindset for managements of other related industries.

  11. Optical Disk Technology and the Library. Part 1: The Technology and Its Applications. Part 2: The National Library Videodisc Demonstration Project. Canadian Network Papers Number 9 = Technologie du Videodisque et la Bibliotheque. Premiere partie: La Technologie et ses Applications. Deuxieme partie: Projet de Demonstration du Videodisque a la Bibliotheque Nationale. Documents sur les Reseaux Canadiens Numero 9.

    Science.gov (United States)

    Duchesne, Roddy; Sonnemann, Sabine S.

    This report is intended to assist Canadian libraries in assessing potential library applications of optical disk technology. Part 1 provides a general outline of the technology and describes a number of library applications and projects. Descriptions are purposely general and illustrative in nature since the technology and its applications are…

  12. Optical Disk Technology and the Library. Part 1: The Technology and Its Applications. Part 2: The National Library Videodisc Demonstration Project. Canadian Network Papers Number 9 = Technologie du Videodisque et la Bibliotheque. Premiere partie: La Technologie et ses Applications. Deuxieme partie: Projet de Demonstration du Videodisque a la Bibliotheque Nationale. Documents sur les Reseaux Canadiens Numero 9.

    Science.gov (United States)

    Duchesne, Roddy; Sonnemann, Sabine S.

    This report is intended to assist Canadian libraries in assessing potential library applications of optical disk technology. Part 1 provides a general outline of the technology and describes a number of library applications and projects. Descriptions are purposely general and illustrative in nature since the technology and its applications are…

  13. The functional architecture of the human body: assessing body representation by sorting body parts and activities.

    Science.gov (United States)

    Bläsing, Bettina; Schack, Thomas; Brugger, Peter

    2010-05-01

    We investigated mental representations of body parts and body-related activities in two subjects with congenitally absent limbs (one with, the other without phantom sensations), a wheelchair sports group of paraplegic participants, and two groups of participants with intact limbs. To analyse mental representation structures, we applied Structure Dimensional Analysis. Verbal labels indicating body parts and related activities were presented in randomized lists that had to be sorted according to a hierarchical splitting paradigm. Participants were required to group the items according to whether or not they were considered related, based on their own body perception. Results of the groups of physically intact and paraplegic participants revealed separate clusters for the lower body, upper body, fingers and head. The participant with congenital phantom limbs also showed a clear separation between upper and lower body (but not between fingers and hands). In the participant without phantom sensations of the absent arms, no such modularity emerged, but the specific practice of his right foot in communication and daily routines was reflected. Sorting verbal labels of body parts and activities appears a useful method to assess body representation in individuals with special body anatomy or function and leads to conclusions largely compatible with other assessment procedures.

  14. Chemical composition and antioxidant activities of essential oils from different parts of the oregano.

    Science.gov (United States)

    Han, Fei; Ma, Guang-Qiang; Yang, Ming; Yan, Li; Xiong, Wei; Shu, Ji-Cheng; Zhao, Zhi-Dong; Xu, Han-Lin

    This research was undertaken in order to characterize the chemical compositions and evaluate the antioxidant activities of essential oils obtained from different parts of the Origanum vulgare L. It is a medicinal plant used in traditional Chinese medicine for the treatment of heat stroke, fever, vomiting, acute gastroenteritis, and respiratory disorders. The chemical compositions of the three essential oils from different parts of the oregano (leaves-flowers, stems, and roots) were identified by gas chromatography-mass spectrometry (GC-MS). The antioxidant activity of each essential oil was assessed using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging assay and reducing the power test. Among the essential oils from different parts of the oregano, the leaf-flower oils have the best antioxidant activities, whereas the stem oils are the worst. The results of the DPPH free radical scavenging assay showed that the half maximal inhibitory concentration (IC50) values of the essential oils were (0.332±0.040) mg/ml (leaves-flowers), (0.357±0.031) mg/ml (roots), and (0.501±0.029) mg/ml (stems), respectively. Interestingly, the results of reducing the power test also revealed that when the concentration exceeded 1.25 mg/ml, the leaf-flower oils had the highest reducing power; however, the stem oils were the lowest.

  15. Quality-related enzymes in plant-based products: effects of novel food-processing technologies part 3: ultrasonic processing.

    Science.gov (United States)

    Terefe, Netsanet Shiferaw; Buckow, Roman; Versteeg, Cornelis

    2015-01-01

    High-power ultrasound is a versatile technology which can potentially be used in many food processing applications including food preservation. This is part 2 of a series of review articles dealing with the effectiveness of nonthermal food processing technologies in food preservation focusing on their effect on enzymes. Typically, ultrasound treatment alone does not efficiently cause microbial or enzyme inactivation sufficient for food preservation. However, combined with mild heat with or without elevated pressure (P ≤ 500 kPa), ultrasound can effectively inactivate enzymes and microorganisms. Synergistic effects between ultrasound and mild heat have been reported for the inactivation of both enzymes and microorganisms. The application of ultrasound has been shown to enhance the rate of inactivation of quality degrading enzymes including pectin methylesterase (PME), polygalacturonase (PG), peroxidase (POD), polyphenol oxidase (PPO), and lipoxygenase (LOX) at mild temperature by up to 400 times. Moreover, ultrasound enables the inactivation of relatively heat-resistant enzymes such as tomato PG1 and thermostable orange PME at mild temperature conditions. The extent to which ultrasound enhances the inactivation rate depends on the type of enzyme, the medium in which the enzyme is suspended, and the processing condition including frequency, ultrasonic intensity, temperature, and pressure. The physical and chemical effects of cavitation are considered to be responsible for the ultrasound-induced inactivation of enzymes, although the dominant mechanism depends on the structure of the enzyme.

  16. Technology, Active Learning, and Retention in General Education Mathematics

    Science.gov (United States)

    Levi, Inessa; Chahine, Iman; Garrett, Lauretta; Wang, Haifeng

    2016-01-01

    Difficulties in general education mathematics courses may be attributed to many factors, primarily low proficiency in symbol manipulation, a perception that mathematics is an area which eludes mastery, a lack of engagement and effective practice. Educational technology can be a powerful aid in overcoming these factors. This work describes the…

  17. Situation awareness of active distribution network: roadmap, technologies, and bottlenecks

    DEFF Research Database (Denmark)

    Lin, Jin; Wan, Can; Song, Yonghua

    2016-01-01

    that operators are aware of operation states and potential risks. Current solutions in distribution supervisory control and data acquisition (DSCADA) as well as the distribution automation system (DAS) generally are not able to meet the technology requirements of SA. In this paper, the authors’ participation...

  18. Key Technologies in Mobile Visual Search and MPEG Standardization Activities

    Institute of Scientific and Technical Information of China (English)

    Ling- Yu Duan; Jie Chen; Chunyu Wang; Rongrong Ji; Tiejun Huang; Wen Gao

    2012-01-01

    Visual search has been a long-standing problem in applications such as location recognition and product search. Much research has been done on image representation, matching, indexing, and retrieval. Key component technologies for visual search have been developed, and numerous real-world applications are emerging. To ensure application interoperability, the Moving Picture Experts Group (MPEG) has begun standardizing visuaJ search technologies and is developing the compact descriptors for visua) search (CDVS) standard. MPEG seeks to develop a collaborative platform for evaluating existing visual search technologies. Peking University has participated in this standardization since the 94th MPEG meeting, and significant progress has been made with the various proposals. A test model (TM) has been selected to determine the basic pipeline and key components of visual search. However, the first-version TM has high computational complexity and imperfect retrieval and matching. Core experiments have therefore been set up to improve TM. In this article, we summarize key technologies for visual search and report the progress of MPEG CDVS. We discuss Peking University' s efforts in CDVS and also discuss unresolved issues.

  19. A microencapsulation process of liquid mercury by sulfur polymer stabilization/solidification technology. Part II: Durability of materials

    Energy Technology Data Exchange (ETDEWEB)

    Lopez-Delgado, A.; Guerrero, A.; Lopez, F. A.; Perez, C.; Alguacil, F. J.

    2012-11-01

    Under the European LIFE Program a microencapsulation process was developed for liquid mercury using Sulfur Polymer Stabilization/Solidification (SPSS) technology, obtaining a stable concrete-like sulfur matrix that allows the immobilization of mercury for long-term storage. The process description and characterization of the materials obtained were detailed in Part I. The present document, Part II, reports the results of different tests carried out to determine the durability of Hg-S concrete samples with very high mercury content (up to 30 % w/w). Different UNE and RILEM standard test methods were applied, such as capillary water absorption, low pressure water permeability, alkali/acid resistance, salt mist aging, freeze-thaw resistance and fire performance. The samples exhibited no capillarity and their resistance in both alkaline and acid media was very high. They also showed good resistance to very aggressive environments such as spray salt mist, freeze-thaw and dry-wet. The fire hazard of samples at low heat output was negligible. (Author)

  20. Screening of alkaloidal fraction of Conium maculatum L. aerial parts for analgesic and antiinflammatory activity

    Directory of Open Access Journals (Sweden)

    Reecha Madaan

    2012-01-01

    Full Text Available Conium maculatum Linn. (Umbelliferae has been traditionally used in the treatment of spasmodic disorders, and to relieve nervous excitation, rheumatic pains in the old and feeble, pain in stomach, pain of gastric ulcer, nervousness and restlessness. Alkaloids have long been considered as bioactive group of constituents present in C. maculatum. Despite a long tradition of use, C. maculatum has not been evaluated pharmacologically to validate its traditional claims for analgesic and antiinflammatory activities. Thus, the present investigations were undertaken with an objective to evaluate alkaloidal fraction of C. maculatum aerial parts for analgesic and antiinflammatory activities. Test doses (100 or 200 mg/kg, p.o. of alkaloidal fraction were evaluated for analgesic activity using tail flick test and antiinflammatory activity using carrageenan-induced paw oedema test in rats. Morphine (5 mg/kg, p.o. and indomethacin (5 mg/kg, p.o. were used as standard analgesic and antiinflammatory drugs, respectively. Alkaloidal fraction of the plant exhibited significant analgesic activity at a dose of 200 mg/kg as it showed significant increase in tail flicking reaction time with respect to the control during 2 h intervals of observation. It also exhibited significant antiinflammatory activity at a dose of 200 mg/kg as it inhibited paw oedema in rats to 71% and reduced the paw volume one-fourth to the control during 1 st h of the study. The present investigations suggest that alkaloids are responsible for analgesic and antiinflammatory activities of C. maculatum.

  1. Antibacterial and antifungal activities of different parts of Tribulus terrestris L. growing in Iraq

    Institute of Scientific and Technical Information of China (English)

    Firas A. AL-BAYATI; Hassan F. AL-MOLA

    2008-01-01

    Antimicrobial activity of organic and aqueous extracts from fruits, leaves and roots of Tribulus terrestris L., an Iraqi medicinal plant used as urinary anti-infective in folk medicine, was examined against 11 species of pathogenic and non-pathogenic microorganisms: Staphylococcus aureus, Bacillus subtilis, Bacillus cereus, Corynebacterium diphtheriae, Escherichia coli,Proteus vulgaris, Serratia marcescens, Salmonella typhimurium, Klebsiella pneumoniae, Pseudomonas aeruginosa and Candida albicans using microdilution method in 96 multiwell microtiter plates. All the extracts from the different parts of the plant showed antimicrobial activity against most tested microorganisms. The most active extract against both Gram-negative and Gram-positive bacteria was ethanol extract from the fruits with a minimal inhibitory concentration (MIC) value of 0.15 mg/ml against B. subtilis,B. cereus, P. vulgaris and C. diphtheriae. In addition, the same extract from the same plant part demonstrated the strongest antifungal activity against C. albicans with an MIC value of 0.15 mg/ml.

  2. The Search for signals of technological activities in the galaxy

    CERN Document Server

    Lemarchand, Guillermo A

    2010-01-01

    In this article an analysis of the fundamentals used to search for extraterrestrial artificial signals in the galaxy, which have been developing for more than five decades, is presented. It is shown that the key factor for the success of these research projects is given by the technological civilizations lifetimes. Assuming the Principle of Mediocrity, estimations are made to determine the minimum number of civilizations that may co-exist in the galaxy and the probability of detecting a signal from them.

  3. The Search for signals of technological activities in the galaxy

    OpenAIRE

    Lemarchand, Guillermo A.

    2010-01-01

    In this article an analysis of the fundamentals used to search for extraterrestrial artificial signals in the galaxy, which have been developing for more than five decades, is presented. It is shown that the key factor for the success of these research projects is given by the technological civilizations lifetimes. Assuming the Principle of Mediocrity, estimations are made to determine the minimum number of civilizations that may co-exist in the galaxy and the probability of detecting a signa...

  4. Compounds from the aerial parts of Piper bavinum and their anti-cholinesterase activity.

    Science.gov (United States)

    Dung, Hoang Viet; Cuong, To Dao; Chinh, Nguyen Minh; Quyen, Do; Kim, Jeong Ah; Byeon, Jeong Su; Woo, Mi Hee; Choi, Jae Sui; Min, Byung Sun

    2015-01-01

    A new alkenylphenol, bavinol A (1), together with six known compounds (2-7) were isolated from the aerial parts of Piper bavinum (Piperaceae). The chemical structures of these compounds were determined by spectroscopic analyses including 2D NMR spectroscopy. The anti-Alzheimer effects of compounds 1-7 were evaluated from acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) inhibitory activity assays. Bavinol A (1), ampelopsin (3), and violanthin (4) exhibited AChE inhibitory activities with IC50 values of 29.80, 59.47 and 79.80 μM. Compound 1 also showed the most potent BChE inhibitory activity with an IC50 value of 19.25 μM.

  5. Antioxidant activities and phenolics profiling of different parts of Carica papaya by LCMS-MS.

    Science.gov (United States)

    Zunjar, V; Mammen, D; Trivedi, B M

    2015-01-01

    This article deals with the comparison of the antioxidant activity of aqueous extracts of various parts of Carica papaya L. The evaluation of total phenolic content and total flavonoid content revealed high antioxidant potential of the seeds and fruits. The free radical-scavenging potential of the aqueous extracts indicated the seeds to have better DPPH-scavenging activity than fruits. The results were augmented by the FRAP activity as well. The phenolics present in the extracts were separated and identified as 5-hydroxy feruloyl quinic acid, acetyl p-coumaryl quinic acid, quercetin-3-O-rhamnoside, syringic acid hexoside, 5-hydroxy caffeic quinic acid, peonidin-3-O-glucoside, sinapic acid-O-hexoside, cyaniding-3-O-glucose and methyl feruloyl glycoside by LCMS-MS technique.

  6. Idaho Nuclear Technology and Engineering Center Low-Activity Waste Process Technology Program FY-2000 Status Report

    Energy Technology Data Exchange (ETDEWEB)

    Herbst, Alan Keith; Mc Cray, John Alan; Kirkham, Robert John; Pao, Jenn Hai; Argyle, Mark Don; Lauerhass, Lance; Bendixsen, Carl Lee; Hinckley, Steve Harold

    2000-11-01

    The Low-Activity Waste Process Technology Program anticipated that grouting will be used for disposal of low-level and transuranic wastes generated at the Idaho Nuclear Technology Engineering Center (INTEC). During fiscal year 2000, grout formulations were studied for transuranic waste derived from INTEC liquid sodium-bearing waste and for projected newly generated low-level liquid waste. Additional studies were completed using silica gel and other absorbents to solidify sodium-bearing wastes. A feasibility study and conceptual design were completed for the construction of a grout pilot plant for simulated wastes and demonstration facility for actual wastes.

  7. Idaho Nuclear Technology and Engineering Center Low-Activity Waste Process Technology Program FY-2000 Status Report

    Energy Technology Data Exchange (ETDEWEB)

    Herbst, A.K.; McCray, J.A.; Kirkham, R.J.; Pao, J.; Argyle, M.D.; Lauerhass, L.; Bendixsen, C.L.; Hinckley, S.H.

    2000-10-31

    The Low-Activity Waste Process Technology Program anticipated that grouting will be used for disposal of low-level and transuranic wastes generated at the Idaho Nuclear Technology Engineering Center (INTEC). During fiscal year 2000, grout formulations were studied for transuranic waste derived from INTEC liquid sodium-bearing waste and for projected newly generated low-level liquid waste. Additional studies were completed using silica gel and other absorbents to solidify sodium-bearing wastes. A feasibility study and conceptual design were completed for the construction of a grout pilot plant for simulated wastes and demonstration facility for actual wastes.

  8. On Car Safety Parts-GSA Materials in Production Technology%轿车安全件材质的生产技术与研究

    Institute of Scientific and Technical Information of China (English)

    马怀生

    2012-01-01

    结合轿车保安件GSA材质用于轿车转向节后臂等保安件的试验及生产实践,从低磷、硫铁液的熔制,高级别球化率的控制和薄壁铸态生产技术等三个方面进行了重点论述.对轿车保安件大量流水生产中关键工艺参数确定和工艺保证方面进行了积极的探索.%Combined with the experiments and production practice of material GSA for safety critical parts used for steering knuckles and rear bras of dragon-citroen cars, it has been discussed about three respects as producing low phosphorus and sulphur iron, high-grade nodularizing rate and the technology of producing as-cast iron castings with thin thick wall. The production of material GSA has been researched actively and effectively through determination of key parameters and guaranty of technology.

  9. Networking activities in technology-based entrepreneurial teams

    DEFF Research Database (Denmark)

    Neergaard, Helle

    2005-01-01

    Based on social network theoy, this article investigates the distribution of networking roles and responsibilities in entrepreneurial founding teams. Its focus is on the team as a collection of individuals, thus allowing the research to address differences in networking patterns. It identifies six...... central networking activities and shows that not all founding team members are equally active 'networkers'. The analyses show that team members prioritize different networking activities and that one member in particular has extensive networking activities whereas other memebrs of the team are more...

  10. Deploying time investigation of automotive active hood lift mechanism with different design parameters of hinge part

    Directory of Open Access Journals (Sweden)

    Tae-Hoon Lee

    2016-04-01

    Full Text Available This article investigates the change in deploying time of an active hood lift mechanism of a passenger vehicle activated by a gunpowder actuator. Especially, in this work, the deploying time is investigated by changing the principal design parameters of the hinge part of the hood mechanism. After briefly introducing the working principle of the active hood lift mechanism operated by the gunpowder actuator, the governing dynamic equations of the active hood lift mechanism are formulated for deploying motion. Subsequently, using the governing equations of motion, the response time for deploying the hood lift mechanism is investigated by changing several geometric locations such as the location of actuator. Then, a comparison is made of the total response time to completely deploy the hood lift mechanism with the existing conventional hood lift mechanism and the proposed active hood lift mechanism. In addition, the workable driving speed of the proposed active hood lift mechanism is compared with the conventional one by changing the powder volume of the actuator.

  11. Antiradical activity of different parts of Walnut (Juglans regia L.) fruit as a function of genotype.

    Science.gov (United States)

    Akbari, Vali; Jamei, Rashid; Heidari, Reza; Esfahlan, Ali Jahanban

    2012-12-15

    The objective of this work was to analyse phenolic compounds and antiradical capacity of different parts of walnut fruit among six genotypes of Juglans regia L. Therefore, total phenolic and flavonoid content were determined and methanolic extracts of walnut genotypes were considered by the reducing power, DPPH (2,2-diphenyl-1-picrylhydrazyl), superoxide anion and nitric oxide radical scavenging. Significant differences were found in phenolic content and radical scavenging capacity of different parts of fruits and among various genotypes. High correlation coefficient (R(2)=0.81) was observed between phenol content and radical scavenging activity, but this was not always true (R(2)=0.01). These results demonstrated that walnut genotypes have different phenolic compounds and phenolic compounds have different radical scavenging power. The differences of phenolic compounds were confirmed by using high performance liquid chromatography (HPLC).

  12. Manufacturing technologies for photovoltaics and possible means of their development in Russia (Review): Part 2. Modification of production technologies for photoelectric converters, development of contact structures, and choice of promising technologies for expansion of FEC production in Russia

    Science.gov (United States)

    Tarasenko, A. B.; Popel', O. S.

    2015-12-01

    As the development of the first part of the review of modern industrial technologies for manufacture of photoelectric converters (PECs) of solar power, the present paper considers modifications of technologies for manufacture of PECs, including various thin-film techniques. Main tendencies in the advancement of contact structures of PECs are described. Formulation and substantiation are made for promising, in the authors' opinion, lines of the development of industry of PECs in Russia based on the upcoming implementation of 1.5 GW network photovoltaic power plants to 2020, which are developed with the national support under conditions of the fulfillment of rigid requirements to manufacture localization. As the most prospective technology for development of the competitive manufacture of photoelectric converters subject to the Russian scientific and engineering groundwork, the authors recommend the technology based on single-crystal silicon of the n type with the passivation of the frontal and rear sides and symmetrical contacts ( n-PASHa), which provides the possibility to produce double-faced solar modules also.

  13. Anti-bacterial activities and phytochemical screening of extracts of different parts of Thalictrum rhynchocarpum.

    Science.gov (United States)

    Mayeku, Philip Wafula; Hassanali, Ahmed; Kiremire, Bernard Turyagenda; Odalo, Josiah Ochieng; Hertweck, Christian

    2013-01-01

    Parts of the plant Thalictrum rhyncocarpum are used in herbal medicine in Kenya to treat various infections. The aim of this study was to evaluate in-vitro anti-bacteria activities and phytochemical profiles of solvent extracts of the leaves, stem bark and root of Thalictrum rhyncocarpum against Bacillus subtilis-6633, Staphylococcus aures-SG 511, Escherichia coli SG 458, Pseudomonus aeruginosa-K799/61 and Mycobacterium vaccae-10670. Anti-bacterial activity tests were carried out using disc diffusion assay and tube dilution technique, and phytochemical screening was carried out through Thin Layer Chromatography. The crude extracts showed antibacterial effects on M. vaccae, P. aeruginosa and B. subtilis. M. vaccae was most sensitive, particularly to the methanol root extract. Phytochemical screening of the extracts suggested the presence of glycosides and alkaloids in the stem bark and root extracts, and flavonoids and triterpenes in the leaf extracts. The study showed interesting levels of activities of solvent extracts of different parts of T. rhyncocarpum against some of the bacteria tested (M. vaccae, P. aeruginosa and B. subtilis). The results provide some scientific rationale for the traditional use of the plant in Kenya to treat different microbial infections.

  14. Chemical composition and antibacterial activity of essential oils from different parts of Litsea cubeba.

    Science.gov (United States)

    Wang, Hongwu; Liu, Yanqing

    2010-01-01

    The composition of the essential oils obtained by hydrodistillation of different parts of Litsea cubeba, including roots, stems, leaves, alabastra (flower buds), flowers, and fruits, were investigated by GC (RI) and GC/MS. The antimicrobial activity of the oils was assessed with disc diffusion and microbroth dilution assays. The results showed large variations in the composition among the different oils. The major components in the oils from roots and fruits, from stems, leaves, and alabastra, and from flowers were citral B (neral), beta-phellandrene, and beta-terpinene, respectively. The inhibition zone (DD) and MIC values for the bacterial strains tested, which were all sensitive to the essential oil of L. cubeba, were in the range of 10.1-35.0 mm and 100-1000 microg/ml, respectively. Hence, the oils of the various parts showed moderate activity against the tested bacteria. This investigation showed that the antibacterial activity of L. cubeba was attributed to the essential oils, thus they can be a potential medicinal resource.

  15. Chemical composition and antimicrobial activity of essential oil of different parts of Seseli rigidum.

    Science.gov (United States)

    Marcetić, Mirjana; Bozić, Dragana; Milenković, Marina; Lakusić, Branislava; Kovacević, Nada

    2012-08-01

    The chemical composition and antimicrobial activity of the essential oil of the Balkan endemic species Seseli rigidum Waldst. & Kit. (Apiaceae) was investigated. The monoterpene alpha-pinene was predominant in the volatile oil from aerial parts (57.4%) and fruit (23.3%). In the essential oil of the aerial parts limonene (6.7%), camphene (5.8%) and sabinene (5.5%) were also present in high amounts, and in the fruit oil, beta-phellandrene (17.4%) and sabinene (12.9%). On the contrary, the root essential oil was composed almost entirely of the polyacetylene falcarinol (88.8%). The antimicrobial activity of the root essential oil was significant against Staphylococcus aureus, S. epidermidis, Micrococcus luteus and Enterococcus faecalis (MICs 6.25-25.00 microg/mL). Volatile constituents from the root strongly inhibited the growth of methicillin-resistant strains of S. aureus (MICs 6.25-50.00 microg/mL). Anti-staphylococcal activity can be attributed to the main volatile constituent ofS. rigidum root, falcarinol.

  16. A microencapsulation process of liquid mercury by sulfur polymer stabilization/solidification technology. Part II: Durability of materials

    Directory of Open Access Journals (Sweden)

    López-Delgado, A.

    2012-02-01

    Full Text Available Under the European LIFE Program a microencapsulation process was developed for liquid mercury using Sulfur Polymer Stabilization/Solidification (SPSS technology, obtaining a stable concrete-like sulfur matrix that allows the immobilization of mercury for long-term storage. The process description and characterization of the materials obtained were detailed in Part I. The present document, Part II, reports the results of different tests carried out to determine the durability of Hg-S concrete samples with very high mercury content (up to 30 % w/w. Different UNE and RILEM standard test methods were applied, such as capillary water absorption, low pressure water permeability, alkali/acid resistance, salt mist aging, freeze-thaw resistance and fire performance. The samples exhibited no capillarity and their resistance in both alkaline and acid media was very high. They also showed good resistance to very aggressive environments such as spray salt mist, freeze-thaw and dry-wet. The fire hazard of samples at low heat output was negligible.

    Dentro del Programa Europeo LIFE, se ha desarrollado un proceso de microencapsulación de mercurio liquido, utilizando la tecnología de estabilización/solidificación con azufre polimérico (SPSS. Como resultado se ha obtenido un material estable tipo concreto que permite la inmovilización de mercurio y su almacenamiento a largo plazo. La descripción del proceso y la caracterización de los materiales obtenidos, denominados concretos Hg-S, se detallan en la Parte I. El presente trabajo, Parte II, incluye los resultados de los diferentes ensayos realizados para determinar la durabilidad de las muestras de concreto Hg-S con un contenido de mercurio de hasta el 30 %. Se han utilizado diferentes métodos de ensayo estándar, UNE y RILEM, para determinar propiedades como la absorción de agua por capilaridad, la permeabilidad de agua a baja presión, la resistencia a álcali y ácido, el comportamiento en

  17. English language learning activity using spoken language and intelligent computer-assisted technologies

    OpenAIRE

    2011-01-01

    This paper presents work in progress on language technologies applied to secondary school education. The application presented integrates several state-of-the-art technologies related to spoken language and intelligent computer-assisted language learning. We envision to show that the technology has reached a level of maturity that suggests that the time may be right to use it to second language learning. To achieve this objective, an activity was designed to be tested at several Spanish...

  18. SCIENCE AND TECHNOLOGY ACTIVITIES FOR CHROMIUM IN THE 100 AREAS

    Energy Technology Data Exchange (ETDEWEB)

    PETERSEN SW

    2009-07-02

    {sm_bullet} Primary Objective: Protect the Columbia River - Focus is control and treatment of contamination at or near the shoreline, which is influenced by bank storage {sm_bullet} Secondary Objective: Reduce hexavalent chromium to <48 parts per billion (ppb) in aquifer (drinking water standard) - Large plumes with isolated areas of high chromium concentrations (> 40,000 ppb), - Unknown source location(s); probably originating in reactor operation areas

  19. USE OF INFORMATION TECHNOLOGIES IN EDUCATIONAL EXTRACURRICULAR ACTIVITIES IN HIGHER TOURIST INSTITUTIONS

    Directory of Open Access Journals (Sweden)

    Yuliia O. Matviyiv-Lozynska

    2013-04-01

    Full Text Available The article deals with extracurricular educational activities in higher educational establishment of tourism profile with information technologies usage. It is known that extracurricular activities of higher educational establishment has an impact on the professional activities of future specialists in the tourism industry, as is in the process of extracurricular activities students can put into practice the obtained knowledge and skills. The task of teachers is to build a learning process, in particular activities outside classrooms as its component, so that the students were interested in it. In the modern world of tourism prosperity it is very difficult to do without the usage of multimedia technologies (internet, media, etc.

  20. R&D activities of tritium technologies on Broader Approach in Phase 2-2

    Energy Technology Data Exchange (ETDEWEB)

    Isobe, Kanetsugu, E-mail: isobe.kanetsugu@jaea.go.jp; Kawamura, Yoshinori; Iwai, Yasunori; Oyaidzu, Makoto; Nakamura, Hirofumi; Suzuki, Takumi; Yamada, Masayuki; Edao, Yuki; Kurata, Rie; Hayashi, Takumi; Yamanishi, Toshihiko

    2015-10-15

    Highlights: • R&D activities of tritium technology on BA were introduced. • Representative results in each task were explained. • Future plan of this activity was introduced. - Abstract: Activities on Broader Approach (BA) were started in 2007. In Phase 2-2, many R&Ds, development of tritium accountancy technology, development of basic tritium safety research and tritium durability test, were implemented successfully by JAEA and Japanese Universities. In Phase 2-3, new collaborative study for tritium measurement and new R&D activities for JET ILW are started. R&D activities on BA have continued in Phase 2-3 (2014–2016).

  1. A brief review of JPL's electric propulsion technology activities

    Science.gov (United States)

    Barnett, John W.; Chopra, Ann; Deininger, William D.; Garner, Charles E.; Pivirotto, Thomas J.; Sercel, Joel C.

    1989-01-01

    Near-term objectives and recent technological progress of JPL's electric propulsion program are discussed. Particular attention is given to accomplishments for ion, magnetoplasmadynamic (MPD), electron-cyclotron resonance (ECR), and arcjet thrusters. Xenon ion thruster erosion tests indicate a 15-fold reduction in tantalum baffle erosion when nitrogen is added to the xenon propellant and steady-state cylindrical MPD thruster tests at powers up to 72 kW show distinct self-constricted and diffuse discharge modes. An ECR thruster was operated at up to 7 kW with plasma acceleration at energies up to 7 kW; there was plasma acceleration at energies approaching 100 electron volts.

  2. Working Group 5: Measurements technology and active experiments

    Science.gov (United States)

    Whipple, E.; Barfield, J. N.; Faelthammar, C.-G.; Feynman, J.; Quinn, J. N.; Roberts, W.; Stone, N.; Taylor, W. L.

    1986-01-01

    Technology issues identified by working groups 5 are listed. (1) New instruments are needed to upgrade the ability to measure plasma properties in space. (2) Facilities should be developed for conducting a broad range of plasma experiments in space. (3) The ability to predict plasma weather within magnetospheres should be improved and a capability to modify plasma weather developed. (4) Methods of control of plasma spacecraft and spacecraft plasma interference should be upgraded. (5) The space station laboratory facilities should be designed with attention to problems of flexibility to allow for future growth. These issues are discussed.

  3. Physical activity versus cardiorespiratory fitness: two (partly) distinct components of cardiovascular health?

    Science.gov (United States)

    DeFina, Laura F; Haskell, William L; Willis, Benjamin L; Barlow, Carolyn E; Finley, Carrie E; Levine, Benjamin D; Cooper, Kenneth H

    2015-01-01

    Physical activity (PA) and cardiorespiratory fitness (CRF) both have inverse relationships to cardiovascular (CV) morbidity and mortality. Recent position papers and guidelines have identified the important role of both of these factors in CV health. The benefits of PA and CRF in the prevention of CV disease and risk factors are reviewed. In addition, assessment methodology and utilization in the research and clinical arenas are discussed. Finally, the benefits, methodology, and utilization are compared and contrasted to better understand the two (partly) distinct components and their impact on CV health.

  4. Attrition of Knowledge Workforce in Healthcare in Northern parts of India – Health Information Technology as a Plausible Retention Strategy

    Directory of Open Access Journals (Sweden)

    Indrajit Bhattacharya

    2012-06-01

    Full Text Available Faced with a global shortage of skilled health workers due to attrition, countries are struggling to build and maintain optimum knowledge workforce in healthcare for delivering quality healthcare services. Forces that affect healthcare professionals’ turnover needs to be addressed before a competent uniformly adoptable strategy could be proposed for mitigating the problem. In this study we investigate the effects of the socio–demographic characteristics on attrition of healthcare knowledge workforce in northern parts of India that have a wide gradient of rural and urban belt, taking into account both public and private healthcare organizations. For this purpose healthcare professional attrition tracking survey (HATS was designed. The data has been collected from a random sample of 807 respondents consisting of doctors, nurses, paramedics and administrators to explore the relationships between various factors acting as antecedents in affecting the job satisfaction, commitment and intention of a healthcare professional to stay in the job. Structured questionnaires were utilized as the data collection tools. Descriptive statistics, factor analysis and path analysis were carried out using multiple regression and correlation to propose a model that best explains the theoretical assumption of factors leading to attrition. Six factors of attrition namely compensation and perks, work life balance, sense of accomplishment, work load, need for automation and technology improvement, substandard nature of work have been identified as the main factors with a data reliability of 0.809%. It has also been identified that the intention to shift is a major decision maker that affects attrition and in turn affected by job satisfaction dimensions. Based on the survey response and analysis, a highly possible strategy of utilizing information technology implementation for increasing worker motivation, job satisfaction and commitment to reduce attrition has been

  5. Attrition of Knowledge Workforce in Healthcare in Northern parts of India – Health Information Technology as a Plausible Retention Strategy

    Directory of Open Access Journals (Sweden)

    R. K. Suri

    2012-01-01

    Full Text Available Faced with a global shortage of skilled health workers due to attrition, countries are struggling to build and maintain an optimum knowledge workforce in healthcare for delivering quality healthcare services. Forces that affect healthcare professional turnover needs to be addressed before a competent uniformly adoptable strategy could be proposed for mitigating the problem. In this study we investigate the effect of the socio –demographic characteristics on attrition of healthcare knowledge workforce in northern parts of India that have a wide gradient of rural and urban belt, taking into account both public and private healthcare organizations. For this purpose healthcare professional attrition tracking survey (HATS was designed. The data has been collected from a random sample of 807 respondents consisting of doctors, nurses, paramedics and administrators to explore the relationships between various factors acting as antecedents in affecting the job satisfaction, commitment and intention of a healthcare professional to stay in the job. Structured questionnaires were utilized as the data collection tools. Both public and private healthcare organizations in urban and rural areas were covered for the survey. Descriptive statistics and factor analyses using analysis on Rotated Factor Matrix using Principal Components Analysis (PCA in SPSS 16.0 package were carried out. Six factors of attrition namely Compensation and perks, Work Life Balance, Sense of Accomplishment, Work load leading to exhaustion, Need for automation and technology improvement, Break Monotony of Work have been identified as the main factors with a data reliability of 0.809%. Based on the survey response and analysis, a highly possible strategy of utilizing information technology implementation for increasing worker motivation, job satisfaction and commitment to reduce attrition has been proposed.

  6. Nutrition issues in developing countries: part I, diarrheal diseases, part II, diet and activity during pregnancy and lactation

    National Research Council Canada - National Science Library

    Subcommittee on Nutrition and Diarrheal Control

    1992-01-01

    ... and Lactation Subcommittee on Nutrition and Diarrheal Diseases Control Subcommittee on Diet, Physical Activity, and Pregnancy Outcome Committee on International Nutrition Programs Food and Nutrition Board Institute of Medicine NATIONAL ACADEMY PRESS Washington, D.C. 1992 Copyrightoriginal retained, the be not from cannot book, paper original h...

  7. Out-of-School Activities Related to Science and Technology

    Directory of Open Access Journals (Sweden)

    Ángel Vázquez Alonso

    2007-05-01

    Full Text Available Artificial and natural environments constitute an extensive educational resource in whose framework the basic experiences that contribute to the development process of human beings occur. These experiences are the source of previous knowledge that students bring to school and that are key for building scientific school learning. This article reports the results of a study that addresses out-of-school experiences related to science and technology, through the application of an inventory list to a sample of students who were in their last year of compulsory education. The results show a relatively low overall frequency of experiences, characterized by some qualitative and quantitative differences according to a few grouping variables such as gender, the choice of an elective science subject, and different scientific topics and disciplines. In spite of its importance for learning, the school curriculum often ignores students’ previous experiences. Finally, we discuss the relevance of these results for developing a more equitable science and technology curriculum, from a perspective of a universal, humanistic science education.

  8. Synthesizing Technology Adoption and Learners' Approaches towards Active Learning in Higher Education

    Science.gov (United States)

    Chan, Kevin; Cheung, George; Wan, Kelvin; Brown, Ian; Luk, Green

    2015-01-01

    In understanding how active and blended learning approaches with learning technologies engagement in undergraduate education, current research models tend to undermine the effect of learners' variations, particularly regarding their styles and approaches to learning, on intention and use of learning technologies. This study contributes to further…

  9. 78 FR 70567 - Nationwide Use of High Frequency and Ultra High Frequency Active SONAR Technology; Final...

    Science.gov (United States)

    2013-11-26

    ...] Nationwide Use of High Frequency and Ultra High Frequency Active SONAR Technology; Final Programmatic... Programmatic Environmental Assessment (PEA) for the Nationwide Use of High Frequency (HF) and Ultra High Frequency (UHF) Sound Navigation and Ranging (SONAR) Technology and Finding of No Significant Impact (FONSI...

  10. Emplotment, Embodiment, Engagement: Narrative Technology in Support of Physical Education, Sport and Physical Activity

    Science.gov (United States)

    Hall, Tony

    2012-01-01

    This paper is based on a keynote lecture delivered at the International Association of Physical Education in Higher Education 2011 Conference, University of Limerick, on the sub theme: "Technologies in Support of Physical Education, Sport, and Physical Activity." The paper outlines and illustrates a framework: narrative technology, which can be…

  11. CAST STONE TECHNOLOGY FOR THE TREATMENT AND IMMOBILIZATION OF LOW-ACTIVITY WASTE

    Energy Technology Data Exchange (ETDEWEB)

    MINWALL HJ

    2011-04-08

    Cast stone technology is being evaluated for potential application in the treatment and immobilization of Hanford low-activity waste. The purpose of this document is to provide background information on cast stone technology. The information provided in the report is mainly based on a pre-conceptual design completed in 2003.

  12. Activity Theory as a Conceptual Framework for Understanding Teacher Approaches to Information and Communication Technologies

    Science.gov (United States)

    Karasavvidis, Ilias

    2009-01-01

    While the issue of teachers' perspectives on the barriers to technology use has received considerable attention, teacher concerns have not been studied in a systematic and holistic way. The present paper examines teacher concerns regarding a proposed technology-based innovation using Activity Theory as a theoretical framework. Fifty-one teachers…

  13. Technology Transfer Activities of NASA/MSFC: Enhancing the Southeast Region's Production Capabilities

    Science.gov (United States)

    Trivoli, George W.

    1998-01-01

    The researcher was charged with the task of developing a simplified model to illustrate the impact of how NASA/MSFC technology transfer activities contribute to shifting outward the Southeast region's and the nation's productive capacity. The report is a background of the impact of technological growth on the nation's production possibility frontier (ppf).

  14. 75 FR 53705 - Science and Technology (S&T) Directorate; Agency Information Collection Activities: Submission...

    Science.gov (United States)

    2010-09-01

    ...-53706] [FR Doc No: 2010-21783] DEPARTMENT OF HOMELAND SECURITY [Docket No. DHS-2010-0073] Science and Technology (S&T) Directorate; Agency Information Collection Activities: Submission for Review; Information Collection Request for the Department of Homeland Security (DHS) Science and Technology Protected...

  15. 75 FR 53706 - Science and Technology (S&T) Directorate: Agency Information Collection Activities: Submission...

    Science.gov (United States)

    2010-09-01

    ...-53707] [FR Doc No: 2010-21786] DEPARTMENT OF HOMELAND SECURITY [Docket No. DHS-2010-0072] Science and Technology (S&T) Directorate: Agency Information Collection Activities: Submission for Review; Information Collection Request for the Department of Homeland Security (DHS) Science and Technology TechSolutions...

  16. Utilizing Technology to Improve the Administration of Instructional Physical Activity Programs in Higher Education

    Science.gov (United States)

    Melton, Bridget; Burdette, Trey

    2011-01-01

    The purpose of this article is to provide examples of how technology is being used in one university to increase the organization and effectiveness of instructional physical activity programs (IPAPs). The article outlines ways in which technology can organize materials for students, instructors, and programs. Additionally, the article describes…

  17. The Potential of Using Virtual Reality Technology in Physical Activity Settings

    Science.gov (United States)

    Pasco, Denis

    2013-01-01

    In recent years, virtual reality technology has been successfully used for learning purposes. The purposes of the article are to examine current research on the role of virtual reality in physical activity settings and discuss potential application of using virtual reality technology to enhance learning in physical education. The article starts…

  18. 75 FR 44063 - Designation of the National Science and Technology Council to Coordinate Certain Activities Under...

    Science.gov (United States)

    2010-07-28

    ... Science and Technology Council to Coordinate Certain Activities Under the Arctic Research and Policy Act of 1984 Memorandum for the Director of the Office of Science and Technology Policy By the authority... 107 and 108 of the Act to the Interagency Arctic Research Policy Committee, including...

  19. The Potential of Using Virtual Reality Technology in Physical Activity Settings

    Science.gov (United States)

    Pasco, Denis

    2013-01-01

    In recent years, virtual reality technology has been successfully used for learning purposes. The purposes of the article are to examine current research on the role of virtual reality in physical activity settings and discuss potential application of using virtual reality technology to enhance learning in physical education. The article starts…

  20. Evaluation of CNS depressant activity of different plant parts of Nyctanthes arbortristis linn.

    Directory of Open Access Journals (Sweden)

    Das Sanjita

    2008-01-01

    Full Text Available The present study was carried out with the water-soluble portion of the ethanol extracts of flowers, barks, seeds and leaves of Nyctanthes arbortristis Linn. to confirm their CNS depressant activity. The ethanol extracts of the plant parts were obtained by soxhlet extraction. After performing the gross behavioral study, the CNS depressant activity was evaluated by observing the prolongation of sleeping time induced by pentobarbital sodium in mice. Attempts have been made to explore the possible mechanism behind this activity by determining their effect on brain monoamine neurotransmitters like dopamine and serotonin. The gross behavioral study showed that ethanol extracts of the leaves, flowers and seeds possess significant CNS depressant activity. The leaves, flowers, seeds and barks (600 mg/kg showed significant and dose-dependent prolongation of onset and duration of sleep and so found to cause decrease dopamine and increase serotonin level. From which it can be concluded that the CNS depressant activity of the ethanol extracts of seeds, leaves and flowers may be due to the decrease in dopamine and increase in serotonin level.

  1. Methods for Evaluating Learner Activities with New Technologies: Guidelines for the Lab@Future Project

    Science.gov (United States)

    Mwanza-Simwami, Daisy; Engestrom, Yrjo; Amon, Tomaz

    2009-01-01

    The task of evaluating learner activities with new technologies is becoming increasingly complex because traditional evaluation strategies do not adequately consider the unique and often dynamic characteristics of learners and activities carried out. Learner activities are largely driven by motives and relationships that exist in the context in…

  2. Advanced technology optical telescopes IV; Proceedings of the Meeting, Tucson, AZ, Feb. 12-16, 1990. Parts 1 & 2

    Science.gov (United States)

    Barr, Lawrence D. (Editor)

    1990-01-01

    The present conference on the current status of large, advanced-technology optical telescope development and construction projects discusses topics on such factors as their novel optical system designs, the use of phased arrays, seeing and site performance factors, mirror fabrication and testing, pointing and tracking techniques, mirror thermal control, structural design strategies, mirror supports and coatings, and the control of segmented mirrors. Attention is given to the proposed implementation of the VLT Interferometer, the first diffraction-limited astronomical images with adaptive optics, a fiber-optic telescope using a large cross-section image-transmitting bundle, the design of wide-field arrays, Hartmann test data reductions, liquid mirrors, inertial drives for telescope pointing, temperature control of large honeycomb mirrors, evaporative coatings for very large telescope mirrors, and the W. M. Keck telescope's primary mirror active control system software.

  3. Preliminary survey of estrogenic activity in part of waters in Haihe River, Tianjin

    Institute of Scientific and Technical Information of China (English)

    SHAO Jing; SHI Guoqing; JIN Xinglong; SONG Maoyong; SHI Jianbo; JIANG Guibin

    2005-01-01

    A preliminary survey of estrogenic activity of the contaminant in part of waters (Ziya River and the estuary of Haihe River) in Haihe River, Tianjin has been performed with the plasma vitellogenin (Vtg) in feral fish as a biomarker for estrogenic activity. The concentrations of bisphenol A (BPA), 4-tert-octylphenol (OP) and 4-nonyl- phenol (NP) in surface water were also determined. The presence of Vtg in male fish plasma as well as that in female can be detected at different sites and different seasons. The results indicate that the water in the sampling sites was contaminated by some estrogenic compounds. Although BPA, OP and NP can be detected in all of the water samples, their concentrations were much lower than the effective concentrations for those chemicals to induce Vtg production in male fish.

  4. Chemical Composition and Antimicrobial Activity of Essential Oils from the Aerial Parts of Salvia pinnata L.

    Directory of Open Access Journals (Sweden)

    Nehir Unver Somer

    2015-06-01

    Full Text Available The composition of the essential oils obtained by hydrodistillation from the aerial parts of Salvia pinnata L. (Labiatae, collected during flowering and fruiting periods, were analyzed by GC and GC-MS. 37 compounds were identified representing 96.1 % of the essential oil obtained from the plant material collected during flowering period. 30 compounds were detected constituting 94.7 % of the essential oil of the plant material collected in fruiting period. The main components of the essential oils were characterized as bornyl acetate, camphor, camphene, bornyl formate, a -pinene and borneol. The oils were screened for antimicrobial activity by the micro-dilution assay against standard bacteria (Escherichia coli, Salmonella enterica, Staphylococcus aureus, Enterococcus faecalis and yeast (Candida albicans and Candida parapsilosis. Both of the oils showed antimicrobial activity against the tested organisms.

  5. Physical activity and situational interest in mobile technology integrated physical education: A preliminary study

    Directory of Open Access Journals (Sweden)

    Xihe Zhu

    2016-06-01

    Full Text Available Background: Mobile technology permeates every aspect of student lives. The question is whether mobile technology integration can produce desirable effects in the gymnasium. Objective: This preliminary study aimed to investigate the effects of mobile technology integration on student situational interest and physical activity fluctuation in physical education lessons.Methods: Sixth grade students (N = 53 were randomly placed into either an experiment group by class that utilized mobile technology-integrated resources (iPad and applications, or a comparison group that did not utilize technology. Both groups received five identical physical education lessons. Student physical activity was tracked with accelerometers, and they completed the Situational Interest Scale at the end of each lesson. The researchers analyzed the data using descriptive statistics, correlation analysis and multivariate analysis of variance (MANOVA with repeated measures. Results: Students in the experiment group reported significantly lower physical activity and situational interest than their counterparts in the comparison group. A group × lesson interaction suggested that student step/min steadily increased throughout the lessons in the experiment group while remaining relative stable in the comparison group. Conclusions: Mobile technologies such as iPad and applications with no direct physical activity prompt had little effect on increasing physical activity or situational interest in the short term. It is important to consider the classroom dynamics to realistically evaluate the constraints and strengths that mobile technology-integrated physical education lessons may pose in a traditional physical education environment.

  6. In Vitro Antiviral Activity of Rubia Cordifolia Aerial Part Extract Against Rotavirus

    Directory of Open Access Journals (Sweden)

    Yuanyuan Sun

    2016-09-01

    Full Text Available The root of Rubia cordifolia (R. cordifolia has been used traditionally as a hemostatic agent, while the aerial part of the plant consisting of leaf and stem is known to exhibit anti-diarrheal properties and has been widely used as a remedy in many parts of China. As rotavirus is one of the most commonly associated diarrhea-causing pathogen, this study aims to investigate the anti-rotaviral effect of R. cordifolia aerial part (RCAP. The cytotoxicity of RCAP towards MA-104 cells was evaluated using the WST-8 assay. Colloidal gold method and real time polymerase chain reaction (qPCR assay were used to confirm the findings of the antiviral assay. Then, 4',6-diamidino-2-phenylindole (DAPI staining method was subsequently used to investigate the mode of death among the cells. And the representative components of aqueous extract were isolated and identified. It was shown that both the viability of MA-104 cells and the viral load were reduced with increasing concentration of the extract. DAPI staining showed that virus-induced apoptosis was the cause of the low cell viability and viral load, an effect which was accelerated with incubation in the aqueous herbal extract. The major compounds postulated to exhibit this activity were isolated from the aqueous herbal extract and identified to be compounds Xanthopurpurin and Vanillic Acid. This study showed that RCAP extract effectively inhibited rotavirus multiplication by promoting virus-induced apoptosis in MA-104 cells.

  7. Psychosocial Impact of Assistive Technologies for Mobility and Their Implications for Active Ageing

    Directory of Open Access Journals (Sweden)

    Anabela Correia Martins

    2016-09-01

    Full Text Available Purpose: Active ageing is defined as the process of optimizing opportunities for physical, social and mental health to enable older people to actively take part in society without discrimination and to enjoy independence and good quality of life. The World Health Organization assumed this to be a process for increasing and maintaining an individual’s participation in activities to enhance his/her quality of life. In this survey, the authors addressed the following question: is assistive technology (AT for mobility contributing to enhancement of lifelong capacity and performance? Method: From June 2015 until February 2016, 96 community dwelling adults, AT users for mobility (powered wheelchairs, manual wheelchairs, lower limb prostheses, walkers, crutches and canes, aged 45–97, mean 67.02 ± 14.24 years old, 56.3% female, were interviewed using the Psychosocial Impact of Assistive Devices Scale (P-PIADS, the Activities and Participation Profile related to Mobility (APPM and demographics, clinical and questions about AT use and training. Results and Discussion: The participants’ profiles revealed moderate limitation and restrictions in participation, measured by the APPM (2.03. Most participants displayed a positive impact from AT; average scores obtained from the P-PIADS subscales were: Self-esteem 0.62, Competency 1.11 and Adaptability 1.10. The P-PIADS total was 0.96, with the powered wheelchair users scoring the highest (1.53 and the walker users scoring the lowest (0.73. All subscales and the P-PIADS total were positively correlated with the activities and participation profile. There was no relation between age and the psychosocial impact of AT or activities and participation profile. These results encourage the authors to follow up with these participants for a lifelong intervention. To accomplish that aim, currently, the protocol is implemented at the AT prescribing centers in Coimbra, Portugal in order to assess the impact of AT on

  8. Investigation of chemical composition and cytotoxic activity of aerial parts of Ziziphora clinopodioides Lam.

    Directory of Open Access Journals (Sweden)

    F. Yousefbeyk

    2016-04-01

    Full Text Available Background and objectives: Ziziphora clinopodioides is a perennial herb and grows widely in west and northwest of Iran. The aerial parts are used as appetizer, carminative and antiseptic as well as for the treatment of medical conditions such as high blood pressure, asthma hyperhidrosis, palpitation and insomnia Methods: The aerial parts of Ziziphora clinopodioides Lam. were extracted by ethanol (70% and fractionated by n-hexane. The n-hexane fraction was analyzed by GC and GC/MS. This fraction and the total extract were further investigated for in vitro cytotoxic activity against HT-29 (colon carcinoma, K-562 (leukemia, T-47D (breast ductal carcinoma and NIH-3T3 (Swiss mouse embryo fibroblast cells using MTT assay. Results:  Nineteen compounds were identified by GC/MS. The main constituents of the n-hexane fraction were pulegone (24.35%, menthol (14% and menthone (9.61%. The results of cytotoxicity evaluation showed that the n-hexane fraction strongly exhibited cytotoxic activity against T-47D and K-562 cells with IC50 value of 77.41±12.89 and 80±2.56 μg/mL. The total extract did not show considerable activity against any of the cell lines in comparison to the n-hexane fraction. Conclusion: The presence of compounds such as pulegone, menthol and menthone could explain the cytotoxic activity of the n-hexane fraction of Z. clinopodioides Lam on K-562, T-47D and HT-29 cell lines.

  9. [Activities of Goddard Earth Sciences and Technology Center, Maryland University

    Science.gov (United States)

    2003-01-01

    The Goddard Space Flight Center (GSFC) is recognized as a world leader in the application of remote sensing and modeling aimed at improving knowledge of the Earth system. The Goddard Earth Sciences Directorate plays a central role in NASA's Earth Observing System and the U.S. Global Change Research Program. Goddard Earth Sciences and Technology (GEST) is organized as a cooperative agreement with the GSFC to promote excellence in the Earth sciences, and is a consortium of universities and corporations (University of Maryland Baltimore County, Howard University, Hampton University, Caelum Research Corporation and Northrop Grumman Corporation). The aim of this new program is to attract and introduce promising students in their first or second year of graduate studies to Oceanography and Earth system science career options through hands-on instrumentation research experiences on coastal processes at NASA's Wallops Flight Facility on the Eastern Shore of Virginia.

  10. Convoy Active Safety Technology - Environmental Understanding and Navigation With Use of Low Cost Sensors

    Science.gov (United States)

    2012-08-01

    program, which was created to design a low cost, optionally manned vehicle ( OMV ) solution for tactical wheeled vehicle (TWV) fleet. This paper will...Active Safety Technology (CAST) development program sought to develop a low cost, optionally manned vehicle ( OMV ) solution. An objective of the CAST...Active Safety Technology (CAST) program, which was created to design a low cost, optionally manned vehicle ( OMV ) solution for tactical wheeled vehicle (TWV

  11. Innovative activity of high-technology companies as assessment and forecasting object

    Directory of Open Access Journals (Sweden)

    A. E. Sklyarov

    2016-01-01

    Full Text Available Innovation activities, as well as innovations, are closely related meanings, and like many others economical definitions, have a broad range of meanings. Main characteristics and attributes of innovation involves new or significantly improved product, that’s being used, or in other words, found its application, and innovative activitiesactivities focused on realization of innovations. In this article, innovations are mainly considered in terms of high-technology production, evidence from Russian space industry. There are 5 basic stages of lifecycle of innovative project in considered industry: initiation, development, realization, expansion, consumption. Practically, third or fourth, or even both of these stages, often missing because there is no need of them. R&D activities, or even further serial production, based on previous developments, is an innovation activity, because these activities are stages of innovative projects lifecycle itself. Then it seems legit, to draw a conclusion, that in terms of high-technology production, company’s primary activity equals innovative activity. Basic characteristics of innovative activity of high-technology companies as assessment and forecasting object involves high level of uncertainty at every stage of projects lifecycle, high dependency on funding level of this activity, and high level and erratic structure of risk. All the above mentioned, means that assessment and forecasting of innovative activity of high-technology companies, needs development of its own methodological tools for each industry.

  12. ECUT: Energy Conversion and Utilization Technologies program - Biocatalysis research activity

    Science.gov (United States)

    Wilcox, R.

    1984-01-01

    The activities of the Biocatalysis Research Activity are organized into the Biocatalysis and Molecular Modeling work elements and a supporting planning and analysis function. In the Biocatalysis work element, progress is made in developing a method for stabilizing genetically engineered traits in microorganisms, refining a technique for monitoring cells that are genetically engineered, and identifying strains of fungi for highly efficient preprocessing of biomass for optimizing the efficiency of bioreactors. In the Molecular Modeling work element, a preliminary model of the behavior of enzymes is developed. A preliminary investigation of the potential for synthesizing enzymes for use in electrochemical processes is completed. Contact with industry and universities is made to define key biocatalysis technical issues and to broaden the range of potential participants in the activity. Analyses are conducted to identify and evaluate potential concepts for future research funding.

  13. Choice of material and development of technology to manufacture the working parts of a rotor operating in machine for turning of triangular heaps

    Directory of Open Access Journals (Sweden)

    W. Uhl

    2008-07-01

    Full Text Available The theoretical part of the study discloses the genesis of the research which originated from a possibility of replacing the so far used expensive machine parts with parts cheaper and yet offering similar quality and performance life. A short characteristic of the machine was given where the main operating parts made so far from steel were replaced with parts made from cast iron. The equipment and its main applications were described.In the research part of the study several types of alloys were proposed. Their use is expected to ensure the required performance life of parts combined with price reduction. A short characteristic of the proposed material was given. A technology of making moulds for the said machine parts was developed. Using this technology, the respective moulds were made and poured next with three cast alloys.One of the proposed materials was subjected to four types of the heat treatment, two alloys used as reference materials were left in as-cast state. The castings were fettled and weighed. The hardness of the cast materials was measured.The working (turning parts were delivered for operation to a sewage-treatment plant where, after assembly in a turning machine, the performance tests were conducted.

  14. Comparison of physical activity, sedentary behavior and physical fitness between fulltime and part-time students

    Directory of Open Access Journals (Sweden)

    Waynne Ferreira de Faria

    2015-05-01

    Full Text Available The aim of this study was to compare physical activity, sedentary behavior and physical fitness between full-time and part-time students. The sample consisted of 72 students (9 to 12 years, 34 of them studying full time. The subjects answered a questionnaire about physical activity, sedentary behavior, and sociodemographic characteristics. Data regarding sexual maturation, body composition and physical fitness were also collected. The results showed that girls studying full time spent less time per day in sedentary behavior compared to part-time girls (p<0.05. Analysis of anthropometric variables showed a significantly lower body fat percentage in boys studying full time. With respect to the physical fitness tests, significant differences were identified in the sit and reach test, horizontal jump, medicine ball throw and agility, with the observation of higher performance in full-time students. Similarly, girls studying full time exhibited significantly higher performance in the horizontal jump and agility tests compared to their peers. It can be concluded that full-time students spend less time in sedentary behavior and exhibit better physical fitness indices in most of the tests used, irrespective of gender.

  15. Radar activities of the DFVLR Institute for Radio Frequency Technology

    Science.gov (United States)

    Keydel, W.

    1983-01-01

    Aerospace research and the respective applications microwave tasks with respect to remote sensing, position finding and communication are discussed. The radar activities are directed at point targets, area targets and volume targets; they center around signature research for earth and ocean remote sensing, target recognition, reconnaissance and camouflage and imaging and area observation radar techniques (SAR and SLAR). The radar activities cover a frequency range from 1 GHz up to 94 GHz. The radar program is oriented to four possible application levels: ground, air, shuttle orbits and satellite orbits. Ground based studies and measurements, airborne scatterometers and imaging radars, a space shuttle radar, the MRSE, and follow on experiments are considered.

  16. [MEDICAL SOCIAL MODELING TECHNOLOGIES FOR ACTIVE AGING IN KAZAKHSTAN].

    Science.gov (United States)

    Benberin, V V; Akhetov, A A; Tanbaeva, G Z

    2015-01-01

    The article discusses a new model for active ageing in Republic of Kazakhstan with participation the state, population and medical social services. Achieving active longevity will lead to positive trends in the development of human capital of the state, because it enables to use experience and knowledge of senior generation in enhancing the effectiveness of socio-economic transformation in health care. The study was carried out on the base of the Central clinical hospital of the President's affairs administration in Republic of Kazakhstan, with the participation of 147 admitted patients of elderly and senile age.

  17. Radar activities of the DFVLR Institute for Radio Frequency Technology

    Science.gov (United States)

    Keydel, W.

    1983-01-01

    Aerospace research and the respective applications microwave tasks with respect to remote sensing, position finding and communication are discussed. The radar activities are directed at point targets, area targets and volume targets; they center around signature research for earth and ocean remote sensing, target recognition, reconnaissance and camouflage and imaging and area observation radar techniques (SAR and SLAR). The radar activities cover a frequency range from 1 GHz up to 94 GHz. The radar program is oriented to four possible application levels: ground, air, shuttle orbits and satellite orbits. Ground based studies and measurements, airborne scatterometers and imaging radars, a space shuttle radar, the MRSE, and follow on experiments are considered.

  18. Q-SEA – a tool for quality assessment of ethics analyses conducted as part of health technology assessments

    Directory of Open Access Journals (Sweden)

    Scott, Anna Mae

    2017-03-01

    Full Text Available Introduction: Assessment of ethics issues is an important part of health technology assessments (HTA. However, in terms of existence of quality assessment tools, ethics for HTA is methodologically underdeveloped in comparison to other areas of HTA, such as clinical or cost effectiveness. Objective: To methodologically advance ethics for HTA by: (1 proposing and elaborating Q-SEA, the first instrument for quality assessment of ethics analyses, and (2 applying Q-SEA to a sample systematic review of ethics for HTA, in order to illustrate and facilitate its use.Methods: To develop a list of items for the Q-SEA instrument, we systematically reviewed the literature on methodology in ethics for HTA, reviewed HTA organizations’ websites, and solicited views from 32 experts in the field of ethics for HTA at two 2-day workshops. We subsequently refined Q-SEA through its application to an ethics analysis conducted for HTA. Results: Q-SEA instrument consists of two domains – the process domain and the output domain. The process domain consists of 5 elements: research question, literature search, inclusion/exclusion criteria, perspective, and ethics framework. The output domain consists of completeness, bias, implications, conceptual clarification, and conflicting values. Conclusion: Q-SEA is the first instrument for quality assessment of ethics analyses in HTA. Further refinements to the instrument to enhance its usability continue.

  19. Vacuum decay container/closure integrity testing technology. Part 1. ASTM F2338-09 precision and bias studies.

    Science.gov (United States)

    Wolf, Heinz; Stauffer, Tony; Chen, Shu-Chen Y; Lee, Yoojin; Forster, Ronald; Ludzinski, Miron; Kamat, Madhav; Godorov, Phillip; Guazzo, Dana Morton

    2009-01-01

    ASTM F2338-09 Standard Test Method for Nondestructive Detection of Leaks in Packages by Vacuum Decay Method is applicable for leak-testing rigid and semi-rigid non-lidded trays; trays or cups sealed with porous barrier lidding materials; rigid, nonporous packages; and flexible, nonporous packages. Part 1 of this series describes the precision and bias studies performed in 2008 to expand this method's scope to include rigid, nonporous packages completely or partially filled with liquid. Round robin tests using three VeriPac 325/LV vacuum decay leak testers (Packaging Technologies & Inspection, LLC, Tuckahoe, NY) were performed at three test sites. Test packages were 1-mL glass syringes. Positive controls had laser-drilled holes in the barrel ranging from about 5 to 15 microm in nominal diameter. Two different leak tests methods were performed at each site: a "gas leak test" performed at 250 mbar (absolute) and a "liquid leak test" performed at about 1 mbar (absolute). The gas leak test was used to test empty, air-filled syringes. All defects with holes > or = 5.0 microm and all no-defect controls were correctly identified. The only false negative result was attributed to a single syringe with a ASTM F2338-09 test method and the precision and bias study report are available by contacting ASTM International in West Conshohocken, PA, USA (www.astm.org).

  20. Q-SEA – a tool for quality assessment of ethics analyses conducted as part of health technology assessments

    Science.gov (United States)

    Scott, Anna Mae; Hofmann, Björn; Gutiérrez-Ibarluzea, Iñaki; Bakke Lysdahl, Kristin; Sandman, Lars; Bombard, Yvonne

    2017-01-01

    Introduction: Assessment of ethics issues is an important part of health technology assessments (HTA). However, in terms of existence of quality assessment tools, ethics for HTA is methodologically underdeveloped in comparison to other areas of HTA, such as clinical or cost effectiveness. Objective: To methodologically advance ethics for HTA by: (1) proposing and elaborating Q-SEA, the first instrument for quality assessment of ethics analyses, and (2) applying Q-SEA to a sample systematic review of ethics for HTA, in order to illustrate and facilitate its use. Methods: To develop a list of items for the Q-SEA instrument, we systematically reviewed the literature on methodology in ethics for HTA, reviewed HTA organizations’ websites, and solicited views from 32 experts in the field of ethics for HTA at two 2-day workshops. We subsequently refined Q-SEA through its application to an ethics analysis conducted for HTA. Results: Q-SEA instrument consists of two domains – the process domain and the output domain. The process domain consists of 5 elements: research question, literature search, inclusion/exclusion criteria, perspective, and ethics framework. The output domain consists of 5 elements: completeness, bias, implications, conceptual clarification, and conflicting values. Conclusion: Q-SEA is the first instrument for quality assessment of ethics analyses in HTA. Further refinements to the instrument to enhance its usability continue. PMID:28326147

  1. The use of EMG biofeedback for learning of selective activation of intra-muscular parts within the serratus anterior muscle

    DEFF Research Database (Denmark)

    Holtermann, A; Mork, P J; Andersen, L L

    2010-01-01

    Motor control and learning possibilities of scapular muscles are of clinical interest for restoring scapular muscle balance in patients with neck and shoulder disorders. The aim of the study was to investigate whether selective voluntary activation of intra-muscular parts within the serratus...... anterior can be learned with electromyographical (EMG) biofeedback, and whether the lower serratus anterior and the lower trapezius muscle comprise the lower scapula rotation force couple by synergistic activation. Nine healthy males practiced selective activation of intra-muscular parts within...... to selectively activate the lower serratus anterior, and two subjects learned to selectively activate the upper serratus anterior. During selective activation of the lower serratus anterior, the activity of this muscle part was 14.4+/-10.3 times higher than the upper serratus anterior activity (P

  2. EVALUATION OF ANTIMICROBIAL AND ANTI-HISTAMINE ACTIVITY OF THE AERIAL PARTS OF TEPHROSIA PURPUREA L.

    Directory of Open Access Journals (Sweden)

    Duraisami Nivedithadevi

    2012-03-01

    Full Text Available Tephrosia purpurea (Fabaceae has been used as a medicinal plant in all over India. This plant is a much branched perennial herb. Roots are given orally against any type of poisoning such as snakebite and the aerial parts were used for hydrophobia, asthma, cough, heart disease and kidney problems. Anti-microbial activity of 50% alcoholic extract with different concentrations were tested against the fungal strains like Aspergillus fumigates, Aspergillus niger, Ganoderma lucida and Candida albicans and bacterial organisms like Escherichia coli, Serratia mercescens, Staphylococcus aureus and Staphylococcus epidermis. The 50% alcoholic extract of Tephrosia purpurea at 5mg, 10mg, and 20mg concentration showed antibacterial activity against Escherichia coli, Serratia marcescens and Staphylococcus. Extracts of Tephrosia purpurea at 5mg, 10mg, and 20mg concentration did not show positive antifungal activities against Aspergillus fumigates, Aspergillus niger, Ganoderma lucida and Candida albicans. Antihistamine activity of 50% alcohol extract of Tephrosia purpurea (TP was evaluated in isolated guinea pig ileum. It was observed that different concentrations (2mg, 4mg and 8mg/ml of TP extract antagonized the contraction of ileum induced by histamine. The extracts at 8mg/ml concentration expected maximum antagonistic. The results obtained with histamine in guinea-pig isolated ileum preparations are sensitive to histamine against like histamine at the lower concentration.

  3. Use of cellphone technology in activity and travel data collection

    CSIR Research Space (South Africa)

    Krygsman, S

    2006-02-01

    Full Text Available Data needs of developing countries, particularly in terms of activity and travel data collection, are explored in this poster. This proof-of-concept study revealed that it is indeed possible to obtain detailed individual travel behaviour data from...

  4. Using Technology to Increase Physical Activity in Health Profession Students

    Directory of Open Access Journals (Sweden)

    Mary Ann Stark

    2016-01-01

    Full Text Available Health profession students may need help establishing and maintaining positive health behaviors when they are in college. This study explored the effectiveness of text messaging as an innovative method for promoting an increase in daily physical activity. A convenience sample (N = 134 was recruited from students at a college of Health and Human Services in Michigan. The participants were randomized into an intervention or control group (n = 67 each. The intervention group received daily affective text messages encouraging more physical activity by taking more steps. The control group received only messages reminding them to report their number of steps. All of the participants received a pedometer, completed a demographics and daily habits questionnaire, and completed the Perceived Stress Scale (PSS. There was no significant difference between the intervention and control groups in their number of daily steps. However, the most inactive participants had a significant increase in steps during the study period. Health profession students’ lifestyle behaviors have consequences, as they become caregivers in our dynamic, demanding health-care system. For those with the greatest need for physical activity, encouraging such activity via text messaging may improve their ability to care for themselves and their clients.

  5. Pro-active Management of Traffic Incidents Using Novel Technologies

    NARCIS (Netherlands)

    Nitsche, P.; Olstam, J.; Taylor, N.; Reinthaler, M.; Ponweiser, W.; Bernhardsson, V.; Mocanu, I.; Uittenbogaard, J.; Dam, E. van

    2016-01-01

    This paper presents the results of the assessment phase of the project PRIMA (Pro-Active Incident Management), where the benefits, costs and risks of novel traffic incident management techniques are investigated. The project targets the enhancement of current state-of-the-art measures for handling

  6. Route activity tracking and management using available technology

    Directory of Open Access Journals (Sweden)

    Sam Yousef Khoury

    2012-01-01

    Full Text Available Small organizations that maintain their own fleet and make their own deliveries are responsible for ensuring their drivers are utilizing the most efficient routes while delivering products to their customers. Furthermore, efficient delivery requires that drivers spend as little time as possible dropping off and picking up products, since these activities are referred to as “non-value added activities,” although they are necessary tasks in the order cycle process. To aid in reducing order cycle times, large organizations that can afford it have employed transportation management systems. Unfortunately, small organizations with limited resources are less likely to adopt transportation management systems, despite the need for such automation. One solution is to use available productivity software to track and manage driver route activity in an effort to improve and maintain driver productivity by reducing non-value time and identifying optimal routes. This paper will outline how office productivity software such as Microsoft® Access can meet the needs of small organizations with limited resources by describing the development and use of a route activity database that employs an easy-to-use multi-user interface. This paper also includes the details of the underlying infrastructure and the user interface.

  7. An Introduction to Cochlear Implant Technology, Activation, and Programming.

    Science.gov (United States)

    Moore, Jan A.; Teagle, Holly F. B.

    2002-01-01

    This article provides information about the hardware components and speech-processing strategies of cochlear implant systems. The use of assistive listening devices with cochlear implants is also discussed. A brief description of surgical procedures and the initial activation of the device are also presented, along with programming considerations.…

  8. Visual Sensor Technology for Advanced Surveillance Systems: Historical View, Technological Aspects and Research Activities in Italy

    Directory of Open Access Journals (Sweden)

    Lauro Snidaro

    2009-03-01

    Full Text Available The paper is a survey of the main technological aspects of advanced visual-based surveillance systems. A brief historical view of such systems from the origins to nowadays is given together with a short description of the main research projects in Italy on surveillance applications in the last twenty years. The paper then describes the main characteristics of an advanced visual sensor network that (a directly processes locally acquired digital data, (b automatically modifies intrinsic (focus, iris and extrinsic (pan, tilt, zoom parameters to increase the quality of acquired data and (c automatically selects the best subset of sensors in order to monitor a given moving object in the observed environment.

  9. Promoting Active Learning in Technology-Infused TILE Classrooms at the University of Iowa

    Directory of Open Access Journals (Sweden)

    Sam Van Horne

    2012-06-01

    Full Text Available In this case study, the authors describe the successful implementation of technology-infused TILE classrooms at the University of Iowa. A successful collaboration among campus units devoted to instructional technologies and teacher development, the TILE Initiative has provided instructors with a new set of tools to support active learning. The authors detail the implementation of the TILE classrooms, the process of training instructors to design effective instruction for these classrooms, and an assessment project that helps improve the process of ensuring faculty can successfully facilitate learning activities in a technology-infused learning environment.

  10. Modern and prospective technologies for weather modification activities: A look at integrating unmanned aircraft systems

    Science.gov (United States)

    Axisa, Duncan; DeFelice, Tom P.

    2016-09-01

    Present-day weather modification technologies are scientifically based and have made controlled technological advances since the late 1990s, early 2000s. The technological advances directly related to weather modification have primarily been in the decision support and evaluation based software and modeling areas. However, there have been some technological advances in other fields that might now be advanced enough to start considering their usefulness for improving weather modification operational efficiency and evaluation accuracy. We consider the programmatic aspects underlying the development of new technologies for use in weather modification activities, identifying their potential benefits and limitations. We provide context and initial guidance for operators that might integrate unmanned aircraft systems technology in future weather modification operations.

  11. NASA Activities as they Relate to Microwave Technology for Aerospace Communications Systems

    Science.gov (United States)

    Miranda, Felix A.

    2011-01-01

    This presentation discusses current NASA activities and plans as they relate to microwave technology for aerospace communications. The presentations discusses some examples of the aforementioned technology within the context of the existing and future communications architectures and technology development roadmaps. Examples of the evolution of key technology from idea to deployment are provided as well as the challenges that lay ahead regarding advancing microwave technology to ensure that future NASA missions are not constrained by lack of communication or navigation capabilities. The presentation closes with some examples of emerging ongoing opportunities for establishing collaborative efforts between NASA, Industry, and Academia to encourage the development, demonstration and insertion of communications technology in pertinent aerospace systems.

  12. Coupled Climate-Economy-Biosphere (CoCEB) model - Part 1: Abatement share and investment in low-carbon technologies

    Science.gov (United States)

    Ogutu, K. B. Z.; D'Andrea, F.; Ghil, M.; Nyandwi, C.; Manene, M. M.; Muthama, J. N.

    2015-04-01

    The Coupled Climate-Economy-Biosphere (CoCEB) model described herein takes an integrated assessment approach to simulating global change. By using an endogenous economic growth module with physical and human capital accumulation, this paper considers the sustainability of economic growth, as economic activity intensifies greenhouse gas emissions that in turn cause economic damage due to climate change. Different types of fossil fuels and different technologies produce different volumes of carbon dioxide in combustion. The shares of different fuels and their future evolution are not known. We assume that the dynamics of hydrocarbon-based energy share and their replacement with renewable energy sources in the global energy balance can be modeled into the 21st century by use of logistic functions. Various climate change mitigation policy measures are considered. While many integrated assessment models treat abatement costs merely as an unproductive loss of income, we consider abatement activities also as an investment in overall energy efficiency of the economy and decrease of overall carbon intensity of the energy system. The paper shows that these efforts help to reduce the volume of industrial carbon dioxide emissions, lower temperature deviations, and lead to positive effects in economic growth.

  13. Keys to active ageing: new communication technologies and lifelong learning.

    Science.gov (United States)

    Díaz-López, M Del Pilar; López-Liria, Remedios; Aguilar-Parra, José M; Padilla-Góngora, David

    2016-01-01

    The purpose of this study is to describe the creation and implementation of an ICT education program for the elderly in various Active Participation Centers in Almería (Spain), assessing its impact on quality of life. From a randomized sample of 200 individuals over the age of 55. Results reveal a high degree of participant satisfaction (76.6 %), as well as improvements in quality of life as compared to the control group after the 3 month program health factor: p = 0.004; leisure and activity factor: p = 0.001; Satisfaction with Life Factor: p higher scores) and gender (the males). This study may serve to facilitate similar works that promotes on-going education in different locations and across the lifespan.

  14. Beat the Street in Reading A city-wide physical activity intervention to get a whole population active using RFID/NFC technology

    Directory of Open Access Journals (Sweden)

    Veronica Jean Reynolds

    2015-10-01

    With repeated participation in Beat the Street, activity levels may increase even further. Further analysis is currently underway to explore walking speed, as an objective measure of fitness, in the 2015 cohort and sub-groups thereof, in particular the least active and those with a long term condition or in the older age categories. Since 2014,107,000 people have played Beat the Street across 11 projects. It is one of the initiatives being tested as part of the EU-funded SWTICH campaign to enhance active travel through technology and health messages. The cost per participant of Beat the Street in Reading was €8 and this means that for every €1 spent over two years there was a return of €21.48 for health, €5.21 for transport and €24.15 for economic productivity. This gives a total of €48 return for every €1 spent.(ii

  15. Students Taking Charge: Inside the Learner-Active, Technology-Infused Classroom

    Science.gov (United States)

    Sulla, Nancy

    2011-01-01

    Teachers and administrators who recognize the needs of today's society and students, and their impact on teaching and learning, can use this book to create student-centered classrooms that make technology a vital part of their lessons. Filled with practical examples and step-by-step guidelines, "Students Taking Charge" will help educators design…

  16. Management of female handball players' activity applying interactive technologies

    Directory of Open Access Journals (Sweden)

    Frolova L.S.

    2012-04-01

    Full Text Available The efficiency of developed methods for the control of female handball players' readiness to competitive activity was determined. The opportunities of team management regarding the specification of playing role, the formation of the starting line of players and the replacement according to game priorities in attack or defense were considered. The availability of the adequate zone of handball players' mobilizing readiness that allows to have a significant influence on individual effectiveness in the conditions of optimal management and to increase the quality of team game was determined.

  17. Chemical composition and antioxidant activity of aerial parts of Ferula longipes Coss. ex Bonnier and Maury.

    Science.gov (United States)

    Bouratoua, Aicha; Khalfallah, Assia; Bensouici, Chawki; Kabouche, Zahia; Alabdul Magid, Abdulmagid; Harakat, Dominique; Voutquenne-Nazabadioko, Laurence; Kabouche, Ahmed

    2017-07-16

    This is the first study on the phytochemistry and antioxidant activity of Ferula longipes Coss. ex Bonnier and Maury (Apiaceae). A new flavonoid quercetin-3-O-α-L-rhamnopyranoside-7-O-ß-D-[2-O-caffeoyl]-glucopyranoside (1), along with 10 known compounds kaempferol-3-O-α-L-rhamnopyranoside (2), quercetin-3-O-α-L-rhamnopyranoside (3), kaempferol-3-O-ß-D-glucopyranoside-7-O-α-L-rhamnopyranoside (4), isorhamnetin-3-O-α-L-rhamnopyranoside-7-O-ß-D-glucopyranoside (5), quercetin-3-O-α-L-rhamnopyranoside-7-O-ß-D-glucopyranoside (6), isorhamnetin-3,7-di-O-β-D-glucopyranoside (7), apigenin (8), apigenin-7-O-ß-D-glucopyranoside (9), 3,5-dicaffeoylquinic acid (10), deltoin (11) were isolated from the aerial parts of Ferula longipes Coss. Structures elucidation was performed by comprehensive 1D and 2D NMR analyses, mass spectrometry and by comparison with literature data. The compounds 1, 3, 4, 6, 7 and 10 were evaluated for their antioxidant activity, compound 1 exhibited the best antiradical activity potential and showed IC50 and A0.5 values 5.70, 7.25, 5.00, and 2.63 μg/mL towards DPPH free radical-scavenging, ABTS, CUPRAC, and reducing power assays, respectively compared with BHA, BHT and ascorbic acid which were used as positive controls.

  18. Oil and gas technology transfer activities and potential in eight major producing states. Volume 1

    Energy Technology Data Exchange (ETDEWEB)

    1993-07-01

    In 1990, the Interstate Oil and Gas Compact Commission (the Compact) performed a study that identified the structure and deficiencies of the system by which oil and gas producers receive information about the potential of new technologies and communicate their problems and technology needs back to the research community. The conclusions of that work were that major integrated companies have significantly more and better sources of technology information than independent producers. The majors also have significantly better mechanisms for communicating problems to the research and development (R&D) community. As a consequence, the Compact recommended analyzing potential mechanisms to improve technology transfer channels for independents and to accelerate independents acceptance and use of existing and emerging technologies. Building on this work, the Compact, with a grant from the US Department Energy, has reviewed specific technology transfer organizations in each of eight major oil producing states to identify specific R&D and technology transfer organizations, characterize their existing activities, and identify potential future activities that could be performed to enhance technology transfer to oil and gas producers. The profiles were developed based on information received from organizations,follow-up interviews, site visit and conversations, and participation in their sponsored technology transfer activities. The results of this effort are reported in this volume. In addition, the Compact has also developed a framework for the development of evaluation methodologies to determine the effectiveness of technology transfer programs in performing their intended functions and in achieving desired impacts impacts in the producing community. The results of that work are provided in a separate volume.

  19. Disturbed Mental Imagery of Affected Body-Parts in Patients with Hysterical Conversion Paraplegia Correlates with Pathological Limbic Activity

    Directory of Open Access Journals (Sweden)

    Arnaud Saj

    2014-05-01

    Full Text Available Patients with conversion disorder generally suffer from a severe neurological deficit which cannot be attributed to a structural neurological damage. In two patients with acute conversion paraplegia, investigation with functional magnetic resonance imaging (fMRI showed that the insular cortex, a limbic-related cortex involved in body-representation and subjective emotional experience, was activated not only during attempt to move the paralytic body-parts, but also during mental imagery of their movements. In addition, mental rotation of affected body-parts was found to be disturbed, as compared to unaffected body parts or external objects. fMRI during mental rotation of the paralytic body-part showed an activation of another limbic related region, the anterior cingulate cortex. These data suggest that conversion paraplegia is associated with pathological activity in limbic structures involved in body representation and a deficit in mental processing of the affected body-parts.

  20. Phenolic compounds from the aerial parts of Prangos ferulaceae, with antioxidant activity

    Directory of Open Access Journals (Sweden)

    Seyed Mehdi Razavi

    2012-11-01

    Full Text Available Background: Prangos ferulaceae (Apiaceae is a perennial herb indigenous to Iran where it is used as a medicinal plant. In folk medicine, extracts of the roots and fruits of the plant have been used for the treatment of digestive disorders, healing scars, and to stop bleeding. In the present work, we report the presence of some phenolic compounds from the aerial parts of the plant. Material and Methods: The air-dried powder of Prangos ferulaceae leaves were Soxhlet extracted, successively, with n-hexane, dichloromethane, and methanol. A portion of concentrated residue of methanol extract was fractionated with an SPE-C18 cartridge using different mixtures of methanol-water. The 40% methanol fraction was analyzed by preparative HPLC using a methanol and water gradient to afford 4 compounds. Results: The purified compounds using preparative HPLC were: a glucosilated coumarin, celereoside and three flavonoids, quercetin 3-O-β-glucoside, isorhamnetin 3-O-β-glucoside, and isorhamnetin 3-O- glucorhamnoside. The structures of the isolated compounds were elucidated by UV, IR, 1D, and 2 D NMR spectral data. Quercetin glucoside and isorhamnetin glucoside exhibited strong antioxidant activity in the DPPH test with an RC50 value of 36.2 and 64.4 ug/mL respectively. Conclusions: It can be concluded that the P. ferulaceae aerial parts contain antioxidant flavonoids and furanocoumarins and that the plants bioactivities and medicinal potential might be attributed to presence of these compounds.

  1. Chemical constituents on the aerial parts of Artemisia selengensis and their IL-6 inhibitory activity.

    Science.gov (United States)

    Kim, A Ryun; Ko, Hae Ju; Chowdhury, Md Anisuzzaman; Chang, Young-Su; Woo, Eun-Rhan

    2015-06-01

    Ten compounds, 1',3'-propanediol,2'-amino-1'-(1,3-benzodioxol-5-yl) (1), artanomaloide (2), canin (3), eupatilin (4), quercetin-3-O-β-D-glucoside-7-O-α-L-rhamnoside (5), 1,3-di-O-caffeoylquinic acid (6), isoquercitrin (7), pinoresinol-4-O-β-D-glucoside (8), scopolin (9), and isofraxidin-7-O-β-D-glucopyranoside (10) were isolated from the aerial parts of A. selengensis. The structures of compounds (1-10) were identified based on 1D and 2D NMR, including (1)H-(1)H COSY, HSQC, HMBC and NOESY spectroscopic analyses. Among them, compound 1 was isolated from this plant for the first time as a naturally occurring compound. The inhibitory activity of these isolated compounds against interleukin-6 (IL-6) production in TNF-α stimulated MG-63 cells was also examined.

  2. Technology Development Report: CDDF, Dual Use Partnerships, SBIR/STTR: Fiscal Year 2003 Activities

    Science.gov (United States)

    Bailey, John W.

    2004-01-01

    The FY2003 NASA John C. Stennis Stennis Space Center (SSC) Technology Development Report provides an integrated report of all technology development activities at SSC. This report actually combines three annual reports: the Center Director's Discretionary Fund (CDDF) Program Report, Dual Use Program Report, and the Small Business Innovation Research (SBIR)/Small Business Technology Transfer (STTR) Program Report. These reports are integrated in one document to summarize all technology development activities underway in support of the NASA missions assigned to SSC. The Dual Use Program Report provides a summary review of the results and status of the nine (9) Dual Use technology development partnership projects funded and managed at SSC during FY2003. The objective of these partnership projects is to develop or enhance technologies that will meet the technology needs of the two NASA SSC Mission Areas: Propulsion Test and Earth Science Applications. During FY2003, the TDTO managed twenty (20) SBIR Phase II Projects and two (2) STTR Phase II Projects. The SBIR contracts support low TRL technology development that supports both the Propulsion Test and the Earth Science Application missions. These projects are shown in the SBIR/STTR Report. In addition to the Phase II contracts, the TDTO managed ten (10) SBIR Phase I contracts which are fixed price, six month feasibility study contracts. These are not listed in this report. Together, the Dual Use Projects and the SBIR/STTR Projects constitute a technology development partnership approach that has demonstrated that success can be achieved through the identification of the technical needs of the NASA mission and using various available partnership techniques to maximize resource utilization to achieve mutual technology goals. Greater use of these partnership techniques and the resource leveraging they provide, is a goal of the TDTO, providing more support to meet the technology development needs of the mission areas at

  3. Effects of a Physical Education Supportive Curriculum and Technological Devices on Physical Activity

    Science.gov (United States)

    Clapham, Emily Dean; Sullivan, Eileen C.; Ciccomascolo, Lori E.

    2015-01-01

    The purpose of this study was to examine the effects of a physical education supportive curriculum and technological devices, heart rate monitor (HRM) and pedometer (PED), on physical activity. A single-subject ABAB research design was used to examine amount and level of participation in physical activity among 106 suburban fourth and fifth…

  4. BULK VITRIFICATION TECHNOLOGY FOR THE TREATMENT AND IMMOBILIZATION OF LOW-ACTIVITY WASTE

    Energy Technology Data Exchange (ETDEWEB)

    ARD KE

    2011-04-11

    This report is one of four reports written to provide background information regarding immobilization technologies under consideration for supplemental immobilization of Hanford's low-activity waste. This paper is intended to provide the reader with general understanding of Bulk Vitrification and how it might be applied to immobilization of Hanford's low-activity waste.

  5. Science and Technology Librarians: User Engagement and Outreach Activities in the Area of Scholarly Communication

    Science.gov (United States)

    Salisbury, Lutishoor; Speer, Julie

    2016-01-01

    This paper highlights the findings of a survey completed by ACRL/STS [Association of College and Research Libraries/Science and Technology Section] members on scholarly communication issues. In particular it identifies the percentage of their daily activities that are spent in support of scholarly communication activities; extent of change of job…

  6. Effects of a Physical Education Supportive Curriculum and Technological Devices on Physical Activity

    Science.gov (United States)

    Clapham, Emily Dean; Sullivan, Eileen C.; Ciccomascolo, Lori E.

    2015-01-01

    The purpose of this study was to examine the effects of a physical education supportive curriculum and technological devices, heart rate monitor (HRM) and pedometer (PED), on physical activity. A single-subject ABAB research design was used to examine amount and level of participation in physical activity among 106 suburban fourth and fifth…

  7. A JOULE-HEATED MELTER TECHNOLOGY FOR THE TREATMENT AND IMMOBILIZATION OF LOW-ACTIVITY WASTE

    Energy Technology Data Exchange (ETDEWEB)

    KELLY SE

    2011-04-07

    This report is one of four reports written to provide background information regarding immobilization technologies remaining under consideration for supplemental immobilization of Hanford's low-activity waste. This paper provides the reader a general understanding of joule-heated ceramic lined melters and their application to Hanford's low-activity waste.

  8. Exploration of Tensions in a Mobile-Technology Supported Fieldtrip: An Activity Theory Perspective

    Science.gov (United States)

    Lai, Chih-Hung; Chen, Fei-Ching; Yang, Jie-Chi

    2014-01-01

    The purpose of this study was to analyze how mobile technologies were incorporated and implemented in an outdoor learning activity. Two classes of primary school students participated in the experiment. Using activity theory as an analytical framework, it is found that underlying tensions provided rich insights into system dynamics and that…

  9. In vitro activity of novel dual action MDR anthranilamide modulators with inhibitory activity on CYP-450 (Part 2).

    Science.gov (United States)

    Labrie, Philippe; Maddaford, Shawn P; Lacroix, Jacques; Catalano, Concettina; Lee, David K H; Rakhit, Suman; Gaudreault, René C

    2007-06-01

    Synthesis and in vitro cytotoxicity assays of new anthranilamide MDR modulators have been performed to assess their inhibition potency on the P-glycoprotein (P-gp) transporter. Previous studies showed that the replacement of the aromatic spacer group between nitrogen atoms (N(1) and N(2)) in the P-gp inhibitor XR9576 with ethyl or propyl chain is optimal for P-gp inhibition potency. To confirm that observation, the ethyl or the propyl linker arm was replaced with a pyrrolidine or an alicyclic group such as cyclohexyl. In addition, an arylpiperazinyl group and two methoxyl groups onto the anthranilic part were introduced to assess their effect on the anti P-gp activity. Five molecules were prepared and evaluated on CEM/VLB500. All new anthranilamides were more potent than verapamil, most of them exhibited a lower cytotoxicity than XR9576. Compound 5 was the most potent and its inhibition activity was similar to XR9576. Interestingly, in vitro biotransformation studies of compounds 4 and 5 using human CYP-450 isoforms revealed, that conversely to XR9576, compounds 4 and 5 inhibited CYP3A4, an enzyme that colocalizes with P-gp in the intestine and contributes to tumor cell chemoresistance by enhancing the biodisposition of numerous drugs, notably paclitaxel. In that context, 5 might be suitable for further drug development.

  10. 32 CFR Appendix A to Part 37 - What Is the Civil-Military Integration Policy That Is the Basis for Technology Investment...

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 1 2010-07-01 2010-07-01 false What Is the Civil-Military Integration Policy That Is the Basis for Technology Investment Agreements? A Appendix A to Part 37 National Defense Department of Defense OFFICE OF THE SECRETARY OF DEFENSE DoD GRANT AND AGREEMENT REGULATIONS...

  11. Chloroform extract of underground parts of Ferula heuffelii: secondary metabolites and spasmolytic activity.

    Science.gov (United States)

    Pavlović, Ivan; Krunić, Aleksej; Nikolić, Dejan; Radenković, Mirjana; Branković, Suzana; Niketić, Marjan; Petrović, Silvana

    2014-09-01

    Plants from the genus Ferula L. (Apiaceae) were used for various purposes in traditional medicine of different nations throughout the history. Ferula heuffelii Griseb. ex Heuffel is a perennial species endemic for Balkan peninsula. Ten compounds which belong to classes of prenyl-furocoumarin-, prenyl-dihydrofurochromone-, prenyl-benzoyl- and prenyl-benzoylfuranone-type sesquiterpenoids, as well as sesquiterpene coumarins and phenylpropanoids, were, for the first time, isolated from the CHCl3 extract of the underground parts of this plant and identified. Furthermore, extract and three isolated compounds, i.e., latifolone (1), dshamirone (4), and (2S*,3R*)-2-[(3E)-4,8-dimethylnona-3,7-dien-1-yl]-2,3-dihydro-7-hydroxy-2,3-dimethylfuro[3,2-c]coumarin (6) were, for the first time, evaluated for their in vitro antispasmodic activities in three experimental models: spontaneous contraction, and ACh- and KCl-induced contraction of an isolated rat ileum. The extract (0.1-1.3 mg/ml) and compound 6 (1-10 μg/ml) exhibited dose-dependent effect in all three models. Compound 1 (1-6 μg/ml) affected spontaneous contractions and those induced by KCl, while compound 4 (8 μg/ml) displayed only moderate activity with ACh-induced contractions. It can be concluded that tested compounds contribute to exhibited antispasmodic activity of crude extract. Additionally, extract (0.1-1.3 mg/ml) was tested for in vitro relaxant activity on an isolated rat trachea, and relaxed the KCl-induced contractions in a dose-dependent manner.

  12. 77 FR 65875 - Agency Information Collection Activities; Proposed Collection; Comment Request; Part B Permit...

    Science.gov (United States)

    2012-10-31

    ... Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. FOR... proposed collection of information, including the validity of the methodology and assumptions used; (iii... parts to the RCRA permit application--Part A and Part B. Part A defines the processes to be used for...

  13. 14 CFR Appendix C to Part 440 - Agreement for Waiver of Claims and Assumption of Responsibility for Permitted Activities

    Science.gov (United States)

    2010-01-01

    ... Assumption of Responsibility for Permitted Activities C Appendix C to Part 440 Aeronautics and Space... FINANCIAL RESPONSIBILITY Pt. 440, App. C Appendix C to Part 440—Agreement for Waiver of Claims and... implement the provisions of section 440.17(c) of the Commercial Space Transportation Licensing...

  14. Anti-inflammatory and antioxidant activities of ethanolic extract of aerial parts of Vernonia patula (Dryand. Merr.

    Directory of Open Access Journals (Sweden)

    Arpona Hira

    2013-10-01

    Conclusions: Therefore, the obtained results suggest the acute anti-inflammatory and antioxidant activities of the EAV and thus provide the scientific basis for the traditional uses of this plant part as a remedy for inflammations.

  15. Identification Of Soil Erosion Prone Zones Using Geomatics Technology In Parts Of North Arcot And Dharmapuri District.

    Directory of Open Access Journals (Sweden)

    T. Subramani

    2014-12-01

    Full Text Available Soil erosion is the removal and subsequent loss of soil by the action of water, ice, wind and gravity. Soil erosion is a process that occurs naturally at a slow rate. The average natural geologic rate of soil erosion is approximately 0.2 tons per acre per year. Erosion is the process were by the earth or rock is loosened or dissolved and removed from any part of earth‟s surface. Geological erosion is the rate at which the catchment or land would normally be eroded without any disturbance by human activity. If man alters the natural system by means of various land use practices that is caused accelerated erosion. The present study area is covering Parts of North Arcot The area is lies between E78°30'-E78°45' lattitudes N12°15'-N12°30„. The total aerial extent of the study area is 720 sq.km. It falls in the survey of India Toposheet 58 L11 on 1:50,000 scale. The IRS – 1D satellite imagery data were subjected to different types of image enhancement techniques and soil erosion areas were mapped out and GIS databases were generated showing the soil erosion areas using Arc Map 9.1 version. GIS overlay function was executed between soil erosion prone areas and the various controlling variables and the area has been fragmented into a number of polygons of land segments depending upon the controlling variables. Finally, the remedial measures were suggested for each land segment according to the controlling variables.

  16. Hollow mesoporous titania microspheres: New technology and enhanced photocatalytic activity

    Science.gov (United States)

    Feng, Zhenliang; Wei, Wenrui; Wang, Litong; Hong, Ruoyu

    2015-12-01

    Hollow titania microspheres (HTS) were fabricated via a sol-gel process by coating the hydrolysis product of titanium tetrabutoxide (TBOT) onto the amino (-NH2) modified porous polystyrene cross-linked divinyl benzene (PS-DVB) microspheres under changing atmospheric pressure, followed by calcination in nitrogen and air atmosphere. Particularly, the atmospheric pressure was continuously and regularly changed during the formation process of PS-DVB@TiO2 microspheres. Then the TiO2 particles were absorbed into the pores and onto the surface of PS-DVB as well. The resultant HTS (around 2 μm in diameter) featured a high specific surface area (84.37 m2/g), anatase crystal and stable hollow microsphere structure, which led to high photocatalysis activity. The photocatalytic degradation of malachite green (MG) organic dye solution was conducted under ultraviolet (UV) light irradiation, which showed a high photocatalytic ability (81% of MG was degraded after UV irradiation for 88 min). Therefore, it could be potentially applied for the treatment of wastewater contaminated by organic pollutants.

  17. Managing Social Activity and Participation in Large Classes with Mobile Phone Technology

    Directory of Open Access Journals (Sweden)

    A. Thatcher

    2008-07-01

    Full Text Available Within the context of a developing country, suchas South Africa, access to technology is severely limited.However, most South Africans have relatively good access tomobile phone technology in relation to other portable andmobile technology. In this initiative, students wereencouraged to use mobile phone text messaging to sendquestions to the lecturer during classes or between classes. Atotal of 86 text messages were sent to the lecturer during a 7-week, second year psychology course. At the end of thecourse 136 responses to questionnaire distributed in classwas obtained. This data was analysed using activity theoryas a framework for the discussion. The results indicated thatstudents had strongly favorable perceptions of this initiativeand respondents had spontaneously suggested other uses ofmobile phone technology to enhance the learningexperience. Activity theory provided a useful framework forevaluating the use of mobile phone text messages to enhancestudent participation and learning.

  18. The Role of Technology in Science Teaching Activities: Web Based Teaching Applications

    Directory of Open Access Journals (Sweden)

    Fatma ALKAN

    2016-12-01

    Full Text Available 2015 Abstract In this research the attitudes of pre-service teachers studying at Hacettepe University, Division of Science Education towards the importance of technological equipment in chemistry education activities and how effective they find technology in teaching different skills and applications have been examined. Pre-test/post-test control group design has been used in the research. In the experimental group Titrimetric Analysis has been conducted with simulations supported web based instruction and in the control group with teacher-centered instruction. In general, it has been found out that the attitudes of pre-service teachers in experiment group towards the importance of technological equipment as a teaching tool in chemistry are more positive than those in control group. In other words, statistically significant differences have occurred in attitudes of pre-service teachers in both experiment and control group towards the role of technology in chemistry teaching activities after web based teaching.

  19. The impact of active controls technology on the structural integrity of aeronautical vehicles

    Science.gov (United States)

    Noll, Thomas E.; Austin, Edward; Donley, Shawn; Graham, George; Harris, Terry; Kaynes, Ian; Lee, Ben; Sparrow, James

    1993-01-01

    The findings of an investigation conducted under the auspices of The Technical Cooperation Program (TTCP) to assess the impact of active controls technology on the structural integrity of aeronautical vehicles and to evaluate the present state-of-the-art for predicting loads caused by a flight-control system modification and the resulting change in the fatigue life of the flight vehicle are summarized. Important points concerning structural technology considerations implicit in applying active controls technology in new aircraft are summarized. These points are well founded and based upon information received from within the aerospace industry and government laboratories, acquired by sponsoring workshops which brought together experts from contributing and interacting technical disciplines, and obtained by conducting a case study to independently assess the state of the technology. The paper concludes that communication between technical disciplines is absolutely essential in the design of future high performance aircraft.

  20. Agenda Setting in Vaccine Policy and Social Relevance of the Emerging Vaccine Technologies From Public Health Perspective – PART 2

    Directory of Open Access Journals (Sweden)

    Dr Vikas Bajpai MD, MPH

    2012-01-01

    Full Text Available Part 1 has dealt with agenda setting in vaccine policy, the percepts of a scientific vaccine policy. Part 2 of the paper discusses the case of Rota virus and Hib pentavalent vaccines. The background, methodology and the results / conclusions of Part 2 remain along the line for the first Part. The thrust of the paper is to strengthen the case for an epidemiologically guided decision regarding inclusion of new vaccines.

  1. Embodied simulation as part of affective evaluation processes: task dependence of valence concordant EMG activity.

    Science.gov (United States)

    Weinreich, André; Funcke, Jakob Maria

    2014-01-01

    Drawing on recent findings, this study examines whether valence concordant electromyography (EMG) responses can be explained as an unconditional effect of mere stimulus processing or as somatosensory simulation driven by task-dependent processing strategies. While facial EMG over the Corrugator supercilii and the Zygomaticus major was measured, each participant performed two tasks with pictures of album covers. One task was an affective evaluation task and the other was to attribute the album covers to one of five decades. The Embodied Emotion Account predicts that valence concordant EMG is more likely to occur if the task necessitates a somatosensory simulation of the evaluative meaning of stimuli. Results support this prediction with regard to Corrugator supercilii in that valence concordant EMG activity was only present in the affective evaluation task but not in the non-evaluative task. Results for the Zygomaticus major were ambiguous. Our findings are in line with the view that EMG activity is an embodied part of the evaluation process and not a mere physical outcome.

  2. Variation in Total Polyphenolics Contents of Aerial Parts of Potentilla Species and Their Anticariogenic Activity

    Directory of Open Access Journals (Sweden)

    Michał Tomczyk

    2010-06-01

    Full Text Available The aerial parts of selected Potentilla species (P. anserina, P. argentea, P. erecta, P. fruticosa, P. grandiflora, P. nepalensis, P. norvegica, P. pensylvanica, P. crantzii and P. thuringiaca were investigated in order to determine their contents of polyphenolic compounds. The results showed that P. fruticosa has relatively high concentrations of tannins (167.3 ± 2.0 mg/g dw, proanthocyanidins (4.6 ± 0.2 mg/g dw and phenolic acids (16.4 ± 0.8 mg/g dw, as well as flavonoids (7.0 ± 1.1 mg/g dw, calculated as quercetin. Furthermore, we investigated the in vitro inhibitory effects of aqueous extracts from these species against cariogenic Streptococcus spp. strains. It was found that the tested samples moderately inhibit the growth of oral streptococci. However, all the preparations exhibited inhibitory effects on water-insoluble α-(1→3-, α-(1→6-linked glucan (mutan and artificial dental plaque formation. The extract from P. fruticosa showed the highest anti-biofilm activities, with minimum mutan and biofilm inhibition concentrations of 6.25–25 and 50–100 µg/mL, respectively. The results indicate that the studied Potentilla species could be a potential plant material for extracting biologically active compounds, and could become a useful supplement for pharmaceutical products as a new anticariogenic agent in a wide range of oral care products.

  3. Quaternary Volcanic Activities in Shandong Peninsula and Northern Parts of Jiangsu and Anhui Provinces

    Institute of Scientific and Technical Information of China (English)

    郑洪汉; 高维明; 等

    1990-01-01

    Quaternary volcanic rocks often coexist with loess,as observed in the same geologic sections in the Shandong Peninsula and northern parts of Jiangsu and Anhui provinces.The development age of Shandong loess in close to that in the middle reaches of the Yellow River.Loess strata are of synchronous implication in the loess belt of North China.So the ages of volcanic activities can be es-timated approximately from the stratigraphic relations between loess layers and volcanic rocks.The re-sults of dating of the Quaternary volcanic rocks,baked layers and the TL dates of loess samples sug-gest that the Quaternary volcanic activity can be divided into 4 stages in the region studied,with the ages being 1.15-1.03,0.86-0.72,0.55-0.33 and 0.02 Ma B.P.respectively .The occurrence of tephra in the Shandong loess sections is possible due to multiple episodes of volcanism during the Quaternary time.

  4. Chemical composition, antioxidant and antibacterial activities of Tamarix balansae J. Gay aerial parts.

    Science.gov (United States)

    Benmerache, Abbes; Benteldjoune, Mounira; Alabdul Magid, Abdulmagid; Abedini, Amin; Berrehal, Djemaa; Kabouche, Ahmed; Gangloff, Sophie C; Voutquenne-Nazabadioko, Laurence; Kabouche, Zahia

    2017-03-10

    A previously undescribed phenolic sulphate ester, potassium 34-dihydroxy-3-methoxybenzoic acid methyl ester-5-sulphate (1), along with nine known flavonoids, kaempferol-3-O-potassium sulphate-4',7-dimethyl ether (2), kaempferol-4',7-dimethyl ether (3), rhamnocitrin-3-O-potassium sulphate (4), rhamnocitrin (5), kaempferol (6), quercetin (7), afzelin (8), quercetin-3-O-α-l-rhamnopyranoside (9) and luteolin-3'-O-potassium sulphate (10) were isolated from the aerial parts of Tamarix balansae. Structures elucidation was performed by comprehensive 1D and 2D NMR analyses, mass spectrometry and by comparison with literature data. The antibacterial assay against Enterococcus faecalis, Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli and Pseudomonas aeruginosa bacteria showed a good activity for 2, 3, 7 and 9, with MICs ranging from 62.5 to 250 μg/mL. The abilities of these compounds to scavenge the DPPH were evaluated. Compounds 1, 7, 9 and 10 exhibited a good antiradical activity potential with IC50 values ranging from 3.0 to 115.5 μg/mL, compared with ascorbic acid (IC50 7.4 μg/mL) which was used as positive control.

  5. Antioxidant activity of various parts of Cinnamomum cassia extracted with different extraction methods.

    Science.gov (United States)

    Yang, Cheng-Hong; Li, Rong-Xian; Chuang, Li-Yeh

    2012-06-13

    The aim of this study was to investigate the antioxidant activities of various parts (barks, buds, and leaves) of Cinnamomum cassia extracted with ethanol and supercritical fluid extraction (SFE). For the antioxidant activity comparison, IC50 values of the SFE and ethanol extracts in the DPPH scavenging assay were 0.562-10.090 mg/mL and 0.072-0.208 mg/mL, and the Trolox equivalent antioxidant capacity (TEAC) values were 6.789-58.335 mmole Trolox/g and 133.039-335.779 mmole Trolox/g, respectively. In addition, the total flavonoid contents were 0.031-1.916 g/ 100 g dry weight of materials (DW) and 2.030-3.348 g/ 100 g DW, and the total phenolic contents were 0.151-2.018 g/ 100 g DW and 6.313-9.534 g/ 100 g DW in the SFE and ethanol extracts, respectively. Based on the results, the ethanol extracts of Cinnamon barks have potential value as an antioxidant substitute and this study also provide a better technique to extract the natural antioxidant substances from C. cassia.

  6. Growth activity of epidermal cells from different parts of human body

    Institute of Scientific and Technical Information of China (English)

    CHAI Jia-ke; SHENG Zhi-yong; MA Zhong-feng; YANG Hong-ming; LIU Qiang; Liang Li-ming

    2007-01-01

    Background Most epidermal cells used in skin tissue engineering are obtained from the skins of fetuses or prepuces,which can not be widely used in culturing and transplanting autologous epidermis for patients with extensive burn wounds. To solve the problem, in this study, we cultured epidermal cells from different parts of human body in vitro, and detected their growth activity.Methods Normal epidermal cells obtained from the prepuce, scalp, and axilla of male patients, were cultured and passaged. Their growth characteristics including adherent rate and growth activity were compared. Data were analyzed by homogeneity test of variance.Results In primary culture, the growth of epidermal cells from the prepuce was significantly faster than that of the epidermal cells from the scalp and axilla. In the cells obtained from the prepuce, 80% confluence was achieved on day 12, while on day 16 and day 20 in the cells from the scalp and axilla, respectively. However, no significant difference was detected in their growth and proliferation in the second passage.Conclusions Although the growth of epidermal cells obtained from the scalp and axilla is slower than that from the prepuce in primary culture, stable cell line can be established and used in preparation of auto-epidermal grafts for patients with extensive burn wounds. Therefore, the scalp and axillary skin should be considered as important sources of epidermal cells other than the prepuce.

  7. Growth activity of epidermal cells from different parts of human body.

    Science.gov (United States)

    Chai, Jia-ke; Sheng, Zhi-yong; Ma, Zhong-feng; Yang, Hong-ming; Liu, Qiang; Liang, Li-ming

    2007-08-20

    Most epidermal cells used in skin tissue engineering are obtained from the skins of fetuses or prepuces, which can not be widely used in culturing and transplanting autologous epidermis for patients with extensive burn wounds. To solve the problem, in this study, we cultured epidermal cells from different parts of human body in vitro, and detected their growth activity. Normal epidermal cells obtained from the prepuce, scalp, and axilla of male patients, were cultured and passaged. Their growth characteristics including adherent rate and growth activity were compared. Data were analyzed by homogeneity test of variance. In primary culture, the growth of epidermal cells from the prepuce was significantly faster than that of the epidermal cells from the scalp and axilla. In the cells obtained from the prepuce, 80% confluence was achieved on day 12, while on day 16 and day 20 in the cells from the scalp and axilla, respectively. However, no significant difference was detected in their growth and proliferation in the second passage. Although the growth of epidermal cells obtained from the scalp and axilla is slower than that from the prepuce in primary culture, stable cell line can be established and used in preparation of auto-epidermal grafts for patients with extensive burn wounds. Therefore, the scalp and axillary skin should be considered as important sources of epidermal cells other than the prepuce.

  8. NASA's Advanced Propulsion Technology Activities for Third Generation Fully Reusable Launch Vehicle Applications

    Science.gov (United States)

    Hueter, Uwe

    2000-01-01

    NASA's Office of Aeronautics and Space Transportation Technology (OASTT) established the following three major goals, referred to as "The Three Pillars for Success": Global Civil Aviation, Revolutionary Technology Leaps, and Access to Space. The Advanced Space Transportation Program Office (ASTP) at the NASA's Marshall Space Flight Center in Huntsville, Ala. focuses on future space transportation technologies under the "Access to Space" pillar. The Propulsion Projects within ASTP under the investment area of Spaceliner100, focus on the earth-to-orbit (ETO) third generation reusable launch vehicle technologies. The goals of Spaceliner 100 is to reduce cost by a factor of 100 and improve safety by a factor of 10,000 over current conditions. The ETO Propulsion Projects in ASTP, are actively developing combination/combined-cycle propulsion technologies that utilized airbreathing propulsion during a major portion of the trajectory. System integration, components, materials and advanced rocket technologies are also being pursued. Over the last several years, one of the main thrusts has been to develop rocket-based combined cycle (RBCC) technologies. The focus has been on conducting ground tests of several engine designs to establish the RBCC flowpaths performance. Flowpath testing of three different RBCC engine designs is progressing. Additionally, vehicle system studies are being conducted to assess potential operational space access vehicles utilizing combined-cycle propulsion systems. The design, manufacturing, and ground testing of a scale flight-type engine are planned. The first flight demonstration of an airbreathing combined cycle propulsion system is envisioned around 2005. The paper will describe the advanced propulsion technologies that are being being developed under the ETO activities in the ASTP program. Progress, findings, and future activities for the propulsion technologies will be discussed.

  9. Harpoon technology development for the active removal of space debris

    Science.gov (United States)

    Dudziak, Roger; Tuttle, Sean; Barraclough, Simon

    2015-08-01

    This paper presents the results of preliminary empirical testing and numerical modelling carried out to demonstrate the effectiveness of using a harpoon in an ADR application. Empirical testing involving the impact of blunt and conical shaped steel tips into 3 mm Al plate showed that the ballistic limit varies in proportion to the tip circumference, with conical shapes resulting in a higher relative ballistic limit due to the additional energy required for petaling. The creation of secondary debris was also monitored. It was found that blunt shapes created a plug during penetration as a result of shearing around the periphery of the projectile, whilst conical tips resulted in minor spalling and fragmentation. Preliminary oblique impact testing with conical and blunt tips showed that the ballistic limit increases with obliquity at a greater rate for blunt tips than conical ones. Impact testing of 3 mm Al plate with conical projectiles at low temperatures showed a more brittle fracture mode when compared with targets impacted at room temperature. As such, the fragmentation and spalling evident in room temperature targets was absent. The energy required to perforate the cooled plates also increased. Impact testing of Al panel obstructed with fixed heat pipes showed that the harpoon could successfully penetrate a target panel with such an obstruction due to shearing of the pipe flange. Testing of two lock on mechanisms showed that both a spring activated and integrated toggle could reliably open upon impact. This testing also used a tensile testing machine to show that both designs could withstand the force expected during deorbiting manoeuvres after impact with Al H/C panels. A parametric simulation comparing the diameter of conical tips with ballistic limits showed a good agreement with the predictions of De Marre's formula for normal impact. This suggests that the ballistic limit of plates impacted by conical projectiles can be successfully extrapolated with limited

  10. Promoting Active Learning in Technology-Infused TILE Classrooms at the University of Iowa

    OpenAIRE

    Sam Van Horne; Cecilia Murniati; Jon D. H. Gaffney; Maggie Jesse

    2012-01-01

    In this case study, the authors describe the successful implementation of technology-infused TILE classrooms at the University of Iowa. A successful collaboration among campus units devoted to instructional technologies and teacher development, the TILE Initiative has provided instructors with a new set of tools to support active learning. The authors detail the implementation of the TILE classrooms, the process of training instructors to design effective instruction for these classrooms, and...

  11. IMPROVEMENT OF EDUCATIONAL COGNITIVE ACTIVITY STUDENTS IN THE PROFESSIONAL EDUCATIONAL ORGANIZATION ON THE BASIS OF VISUALIZATION TECHNOLOGY OF EDUCATIONAL INFORMATION

    Directory of Open Access Journals (Sweden)

    Liliya A. Kolmakova

    2015-01-01

    Full Text Available The aim of the study is to consider the problem of improving the quality of education in the professional educational organizations.Methods. The scientific and pedagogical analyses of the concepts forming a terminological field of a problem are used. The system, competence-based and personal approaches are used for development of models of cognitive visualization. Questioning of students was carried out to establish the level of development of their informative activity.Results. The constituent parts of the modern educational process and the need to create specific conditions for its implementation are identified and described. The author gives a generalized characteristic of visualization technology of educational information. The application of cognitive visualization models using information and communication technologies are proved. The results showing the evolution of motivational indicators of students’ activity before and after application of LSM and the «Metaplan» in the educational process are presented.Scientific novelty. The pedagogical conditions that allow using information and communication technologies as means of the trainees’ educational informative activity improvement in the professional educational organization are defined. Features of the directed application of methods of cognitive visualization of educational information, both for improvement of educational cognitive activity, and for formation of professional competences of students by profession «A chef, a confectioner» are noted.Practical importance. Use of methods of cognitive visualization in educational process on the example of studying of Chemistry and Biology in the professional educational organization is considered in details. The teaching package providing application of methods of cognitive visualization of educational information for the purpose of improvement of educational cognitive activity of students in the professional educational organization

  12. WHO influenza vaccine technology transfer initiative: role and activities of the Technical Advisory Group.

    Science.gov (United States)

    Francis, Donald P; Grohmann, Gary

    2011-07-01

    In May 2006, the WHO published a Global Pandemic Influenza Action Plan. A significant part of that plan involves the transfer of technology necessary to build production capacity in developing countries. The WHO influenza technology transfer initiative has been successful. Clearly the relatively small WHO investments made in these companies to develop their own influenza vaccine production facilities have had quite dramatic results. A few companies are already producing large amounts of influenza vaccine. Others will soon follow. Whether they are developing egg-based or planning non-egg based influenza vaccine production, all companies are optimistic that their efforts will come to fruition.

  13. Activity Theory as a Framework for Investigating District-Classroom System Interactions and Their Influences on Technology Integration

    Science.gov (United States)

    Anthony, Anika Ball

    2012-01-01

    Technology implementation research indicates that teachers' beliefs and knowledge, as well as a host of institutional factors, can influence technology integration. Drawing on third-generation activity theory, this article conceptualizes technology implementation as a network of planning and integration activities carried out by technology…

  14. Enabling Remote Activity: Using mobile technology for remote participation in geoscience fieldwork

    Science.gov (United States)

    Davies, Sarah; Collins, Trevor; Gaved, Mark; Bartlett, Jessica; Valentine, Chris; McCann, Lewis

    2010-05-01

    access was used to enable mobility-impaired students to take part in and complete a field course. This involved connecting the student in an accessible vehicle located close to the field site, via a wireless network, to a geologist in the field. The geologist worked alongside the general body of students and the field tutor as each geological site was investigated. Two-way communications allowed the student to guide the geologist to provide video panoramas of the area, to select areas of interest for further study and to obtain high resolution images of specific points. The students were able to work through the field activities alongside the rest of the student group. A collaborative groupwork trial (2007) was used to connect two groups of students; one in an accessible laboratory, the other at a field site. Traditionally, students collect data in the field and analyze it on return to the laboratory; this system proposes a more rapid collection and analysis procedure, with information being transmitted between sites with field and laboratory participants having their own distinct, significant roles within the learning activity. This project recently received an award at the 2008 Handheld Learning Conference and a HEFCE sponsored Open University Teaching Award. In contrast to the use of ‘virtual fieldwork' that aims to provide simulations or a resource for a student to use, the focus of this project is on how technology can be used to support actual fieldwork activities. This approach has been trialled now over three field seasons, with students using the system to remotely participate in fieldwork activities. Interviews with tutors and students have shown that this was perceived as valuable and allowed participants to achieve the learning objectives of the course alongside their peers. The challenges of remote fieldwork concern the co-ordination of students' activities, the integration of remote and field activities and practical issues of lightweight, easy

  15. Alternate particle removal technologies for the Airborne Activity Confinement System at the Savannah River Site

    Energy Technology Data Exchange (ETDEWEB)

    Brockmann, J.E.; Adkins, C.L.J.; Gelbard, F. [Sandia National Labs., Albuquerque, NM (United States)

    1991-09-01

    This report presents a review of the filtration technologies available for the removal of particulate material from a gas stream. It was undertaken to identify alternate filtration technologies that may be employed in the Airborne Activity Confinement System (AACS) at the Savannah River Plant. This report is organized into six sections: (1) a discussion of the aerosol source term and its definition, (2) a short discussion of particle and gaseous contaminant removal mechanisms, (3) a brief overview of particle removal technologies, (4) a discussion of the existing AACS and its potential shortcomings, (5) an enumeration of issues to be addressed in upgrading the AACS, and, (6) a detailed discussion of the identified technologies. The purpose of this report is to identity available options to the existing particle removal system. This system is in continuous operation during routine operation of the reactor. As will be seen, there are a number of options and the selection of any technology or combination of technologies will depend on the design aerosol source term (yet to be appropriately defined) as well as the flow requirements and configuration. This report does not select a specific technology. It focuses on particulate removal and qualitatively on the removal of radio-iodine and mist elimination. Candidate technologies have been selected from industrial and nuclear gas cleaning applications.

  16. Alternate particle removal technologies for the Airborne Activity Confinement System at the Savannah River Site

    Energy Technology Data Exchange (ETDEWEB)

    Brockmann, J.E.; Adkins, C.L.J.; Gelbard, F. (Sandia National Labs., Albuquerque, NM (United States))

    1991-09-01

    This report presents a review of the filtration technologies available for the removal of particulate material from a gas stream. It was undertaken to identify alternate filtration technologies that may be employed in the Airborne Activity Confinement System (AACS) at the Savannah River Plant. This report is organized into six sections: (1) a discussion of the aerosol source term and its definition, (2) a short discussion of particle and gaseous contaminant removal mechanisms, (3) a brief overview of particle removal technologies, (4) a discussion of the existing AACS and its potential shortcomings, (5) an enumeration of issues to be addressed in upgrading the AACS, and, (6) a detailed discussion of the identified technologies. The purpose of this report is to identity available options to the existing particle removal system. This system is in continuous operation during routine operation of the reactor. As will be seen, there are a number of options and the selection of any technology or combination of technologies will depend on the design aerosol source term (yet to be appropriately defined) as well as the flow requirements and configuration. This report does not select a specific technology. It focuses on particulate removal and qualitatively on the removal of radio-iodine and mist elimination. Candidate technologies have been selected from industrial and nuclear gas cleaning applications.

  17. Aerosol cloud precipitation interactions. Part 1. The nature and sources of cloud-active aerosols

    Science.gov (United States)

    Andreae, M. O.; Rosenfeld, D.

    2008-07-01

    consistently suggest that CCN concentrations over the pristine continents were similar to those now prevailing over the remote oceans, suggesting that human activities have modified cloud microphysics more than what is reflected in conventional wisdom. The second part of this review will address the effects of changing CCN and IN abundances on precipitation processes, the water cycle, and climate.

  18. Active assistance technology for health-related behavior change: an interdisciplinary review.

    Science.gov (United States)

    Kennedy, Catriona M; Powell, John; Payne, Thomas H; Ainsworth, John; Boyd, Alan; Buchan, Iain

    2012-06-14

    Information technology can help individuals to change their health behaviors. This is due to its potential for dynamic and unbiased information processing enabling users to monitor their own progress and be informed about risks and opportunities specific to evolving contexts and motivations. However, in many behavior change interventions, information technology is underused by treating it as a passive medium focused on efficient transmission of information and a positive user experience. To conduct an interdisciplinary literature review to determine the extent to which the active technological capabilities of dynamic and adaptive information processing are being applied in behavior change interventions and to identify their role in these interventions. We defined key categories of active technology such as semantic information processing, pattern recognition, and adaptation. We conducted the literature search using keywords derived from the categories and included studies that indicated a significant role for an active technology in health-related behavior change. In the data extraction, we looked specifically for the following technology roles: (1) dynamic adaptive tailoring of messages depending on context, (2) interactive education, (3) support for client self-monitoring of behavior change progress, and (4) novel ways in which interventions are grounded in behavior change theories using active technology. The search returned 228 potentially relevant articles, of which 41 satisfied the inclusion criteria. We found that significant research was focused on dialog systems, embodied conversational agents, and activity recognition. The most covered health topic was physical activity. The majority of the studies were early-stage research. Only 6 were randomized controlled trials, of which 4 were positive for behavior change and 5 were positive for acceptability. Empathy and relational behavior were significant research themes in dialog systems for behavior change, with

  19. Current Research Activities in Drive System Technology in Support of the NASA Rotorcraft Program

    Science.gov (United States)

    Handschuh, Robert F.; Zakrajsek, James J.

    2006-01-01

    Drive system technology is a key area for improving rotorcraft performance, noise/vibration reduction, and reducing operational and manufacturing costs. An overview of current research areas that support the NASA Rotorcraft Program will be provided. Work in drive system technology is mainly focused within three research areas: advanced components, thermal behavior/emergency lubrication system operation, and diagnostics/prognostics (also known as Health and Usage Monitoring Systems (HUMS)). Current research activities in each of these activities will be presented. Also, an overview of the conceptual drive system requirements and possible arrangements for the Heavy Lift Rotorcraft program will be reviewed.

  20. Establishing a Research Information System as Part of an Integrated Approach to Information Management: Best Practice at the Karlsruhe Institute of Technology (KIT

    Directory of Open Access Journals (Sweden)

    Frank Scholze

    2012-01-01

    Full Text Available The Karlsruhe Institute of Technology (KIT is one of the largest research and higher education organisations in the world focusing on engineering and natural sciences. At present KIT, under the chairmanship of its executive board, is installing an extensive current research information system (CRIS covering all institutes and facilities of the organisation. The assumption underlying the project is that a consistent overview of research performance has become fundamental for the international competitiveness of research institutions and is increasingly important for strategic decisions at the executive level. Ultimately, it also leads to better data and control in rankings at higher education assessments. The new research information system systematically maps all of KIT’s processes and instruments to obtain, connect, present and utilise the research metadata of active researchers. This reduces the documentation workload for researchers, for the executive level and central units such as the library, and at the same time allows for and facilitates an overall view and the aggregation and visualisation of research metadata. Our vision is to build a federally structured network of systems that gathers information on KIT’s publications, research competence, research projects, patents and technological offers by retrieving data from external and internal sources as well as directly from the researchers. The network facilitates linking and aggregating of data and provides unique identifiers for individual researchers and organizational units. With its consistent data model the research information system also fosters the organisational development of KIT, which was formed in 2009 by the merger of a university and a national research centre. The researchers and their activities are at the core of the research information system. The system substantially reduces their administrative burden in documenting project information and publications. Automatic