Non-destructive evaluation of impact damage on carbon fiber laminates: Comparison between ESPI and Shearography

Energy Technology Data Exchange (ETDEWEB)

Pagliarulo, V., E-mail: v.pagliarulo@isasi.cnr.it; Ferraro, P. [CNR National Research Council, ISASI, Institute of Applied Sciences and Intelligent Systems, via Campi Flegrei 34, 80078 Pozzuoli, NA (Italy); Lopresto, V.; Langella, A. [Dpt. Of Chemicals, Materials and Production Engin., University of Naples “Federico II”, P.leTecchio 80, Naples (Italy); Antonucci, V.; Ricciardi, M. R. [CNR National Research Council, IPCB, Institute of Polymer Composites and Biomedical Materials, P.E. Fermi, Portici (Italy)

2016-06-28

The aim of this paper is to investigate the ability of two different interferometric NDT techniques to detect and evaluate barely visible impact damage on composite laminates. The interferometric techniques allow to investigate large and complex structures. Electronic Speckle Pattern Interferometry (ESPI) works through real-time surface illumination by visible laser (i.e. 532 nm) and the range and the accuracy are related to the wavelength. While the ESPI works with the “classic” holographic configuration, that is reference beam and object beam, the Shearography uses the object image itself as reference: two object images are overlapped creating a shear image. This makes the method much less sensitive to external vibrations and noise but with one difference, it measures the first derivative of the displacement. In this work, different specimens at different impact energies have been investigated by means of both methods. The delaminated areas have been estimated and compared.

U-value measurements on ISO round Robin window

DEFF Research Database (Denmark)

Duer, Karsten

1997-01-01

9 laboratories in 6 european and 2 north american countries have participated in a round robin U-value test of a standard facade window. The objective of the round robin test was to verify that the ISO/CEN proposals for U-value measurement standard is robust.......9 laboratories in 6 european and 2 north american countries have participated in a round robin U-value test of a standard facade window. The objective of the round robin test was to verify that the ISO/CEN proposals for U-value measurement standard is robust....

DH and ESPI laser interferometry applied to the restoration shrinkage assessment

International Nuclear Information System (INIS)

Campos, L.M.P.; Parra, D.F.; Vasconcelos, M.R.; Vaz, M.; Monteiro, J.

2014-01-01

In dental restoration postoperative marginal leakage is commonly associated to polymerization shrinkage effects. In consequence the longevity and quality of restorative treatment depends on the shrinkage mechanisms of the composite filling during the polymerization. In this work the development of new techniques for evaluation of those effects under light-induced polymerization of dental nano composite fillings is reported. The composite resins activated by visible light, initiate the polymerization process by absorbing light in wavelengths at about 470 nm. The techniques employed in the contraction assessment were digital holography (DH) and Electronic Speckle Pattern Interferometry (ESPI) based on laser interferometry. A satisfactory resolution was achieved in the non-contact displacement field measurements on small objects concerning the experimental dental samples. According to a specific clinical protocol, natural teeth were used (human mandibular premolars). A class I cavity was drilled and restored with nano composite material, according to Black principles. The polymerization was monitored by DH and ESPI in real time during the cure reaction of the restoration. The total displacement reported for the material in relation of the tooth wall was 3.7 μm (natural tooth). The technique showed the entire tooth surface (wall) deforming during polymerization shrinkage. - Highlights: • Both of holographic techniques were able to measure the polymerization shrinkage. • The entire tooth surface was deformed during the polymerization shrinkage. • The group with greater percentage of filler showed the lowest value of deformation. • The values of displacement ranged from 0.9 to 3.4 μm

The effects of orchard pesticide applications on breeding robins

Science.gov (United States)

Johnson, E.V.; Mack, G.L.; Thompson, D.Q.

1976-01-01

From 1966 through 1968, robins reproduced successfully in commercial apple orchards which were periodically sprayed with DDT, dieldrin, and other pesticides. Observations by a Z-man team using walkie-talkies revealed that breeding robins obtained essentially all food for themselves and nestlings from unsprayed areas adjacent to the orchards. Invertebrate trapping in sprayed and unsprayed areas showed that these food items were 5 or 6 times more abundant in unsprayed habitat. Worms forced to live in sprayed orchard soil displayed significantly greater mortality than controls. Mean robin clutch sizes in the study orchards were lower than those reported for robins in other studies, perhaps because of food shortage and/or increased foraging distances. Levels of DDT and its analogs in food items from robin foraging areas did not exceed 8 ppm wet weight basis. From late April to July, adult robins showed small but significant increases in DDE levels in all tissues examined, as well as an increase in dieldrin in brains. Pesticides sprayed on the farm had no direct demonstrable adverse effects on the robins; productivity was high and adult mortality low. The situation was in large measure fortuitous, since any changes in orchard management practices which resulted in the presence or availability of invertebrates under orchard trees would be expected to result in robin mortality and/or reduced breeding success.

ROBINS-I

DEFF Research Database (Denmark)

Sterne, Jonathan A C; Hernan, M. A.; Reeves, B. C.

2016-01-01

Non-randomised studies of the effects of interventions are critical to many areas of healthcare evaluation, but their results may be biased. It is therefore important to understand and appraise their strengths and weaknesses. We developed ROBINS-I ("Risk Of Bias In Non-randomised Studies - of Int...

Preliminary results of real-time in-vitro electronic speckle pattern interferometry (ESPI) measurements in otolaryngology

Science.gov (United States)

Conerty, Michelle D.; Castracane, James; Cacace, Anthony T.; Parnes, Steven M.; Gardner, Glendon M.; Miller, Mitchell B.

1995-05-01

Electronic Speckle Pattern Interferometry (ESPI) is a nondestructive optical evaluation technique that is capable of determining surface and subsurface integrity through the quantitative evaluation of static or vibratory motion. By utilizing state of the art developments in the areas of lasers, fiber optics and solid state detector technology, this technique has become applicable in medical research and diagnostics. Based on initial support from NIDCD and continued support from InterScience, Inc., we have been developing a range of instruments for improved diagnostic evaluation in otolaryngological applications based on the technique of ESPI. These compact fiber optic instruments are capable of making real time interferometric measurements of the target tissue. Ongoing development of image post- processing software is currently capable of extracting the desired quantitative results from the acquired interferometric images. The goal of the research is to develop a fully automated system in which the image processing and quantification will be performed in hardware in near real-time. Subsurface details of both the tympanic membrane and vocal cord dynamics could speed the diagnosis of otosclerosis, laryngeal tumors, and aid in the evaluation of surgical procedures.

The Dirichlet-to-Robin Transform

CERN Document Server

Bondurant, J D

2004-01-01

A simple transformation converts a solution of a partial differential equation with a Dirichlet boundary condition to a function satisfying a Robin (generalized Neumann) condition. In the simplest cases this observation enables the exact construction of the Green functions for the wave, heat, and Schrodinger problems with a Robin boundary condition. The resulting physical picture is that the field can exchange energy with the boundary, and a delayed reflection from the boundary results. In more general situations the method allows at least approximate and local construction of the appropriate reflected solutions, and hence a "classical path" analysis of the Green functions and the associated spectral information. By this method we solve the wave equation on an interval with one Robin and one Dirichlet endpoint, and thence derive several variants of a Gutzwiller-type expansion for the density of eigenvalues. The variants are consistent except for an interesting subtlety of distributional convergence that affec...

PENDEKATAN BRAINSTORMINGROUND-ROBIN UNTUK MENINGKATKAN KEMAMPUAN KOMUNIKASIMATEMATIS SISWA SMP

Directory of Open Access Journals (Sweden)

Maya Siti Rohmah

2015-07-01

Full Text Available ABSTRAK Penelitian ini bertujuan untuk mengetahui peningkatan kemampuan komunikasi matematis siswa yang pembelajarannya menggunakan Brainstorming Round-Robin dibandingkan dengan siswa yang pembelajarannya konvensional. Penelitian kuasi eksperimen ini mengambil populasi siswa kelas VII pada salah satu SMP di kabupaten Bandung Barat dengan sampel 2 kelas. Dari dua kelas yang dipilih dalam penelitian ini, salah satunya digunakan sebagai kelas eksperimen yang memperoleh pembelajaran dengan pendekatan Brainstorming Round-Robin, sedangkan kelas lainnnya sebagai kelas kontrol yang pembelajarannya konvensional. Kedua kelompok diberikan pretes dan postes kemampuan komunikasi matematis. Data N-gain yang diperoleh diuji secara kuantitatif dengan uji perbedaan rerata nonparametrik Mann-Whitney. Hasil penelitian menunjukkan bahwa peningkatan kemampuan komunikasi matematis siswa yang mendapat pembelajaran dengan menggunakan pendekatan Brainstorming Round-Robin lebih baik daripada siswa yang pembelajarannya konvensional. Kata Kunci    :     Brainstorming Round-Robin, KomunikasiMatematis     ABSTRACT The aims of these research are to determine anincrease in mathematics communication of students who obtain learning using Round-Robin Brainstormingbetter thanstudents who receivedconventional learning. This quasi experimental take population all students at class VII in one of public secondary school in West Bandung district with 2 classes as sample. From this 2 classes choosen in this research, one of them as an experimental classthatacquirelearningwithRound-Robin Brainstormingapproach, and the other one as acontrol class that receive conventional learning. Both groups weregiven thepretest and posttest of mathematics communication. N-gain data obtainedquantitatively,testedwitha meandifference testnonparametricMann-Whitney. The results showedthat an achievement and increase inmathematics communication of students thatgetslearning usingRound-Robin

International Technical Working Group Round Robin Tests

International Nuclear Information System (INIS)

Dudder, Gordon B.; Hanlen, Richard C.; Herbillion, Georges M.

2003-01-01

The goal of nuclear forensics is to develop a preferred approach to support illicit trafficking investigations. This approach must be widely understood and accepted as credible. The principal objectives of the Round Robin Tests are to prioritize forensic techniques and methods, evaluate attribution capabilities, and examine the utility of database. The HEU (Highly Enriched Uranium) Round Robin, and previous Plutonium Round Robin, have made tremendous contributions to fulfilling these goals through a collaborative learning experience that resulted from the outstanding efforts of the nine participating internal laboratories. A prioritized list of techniques and methods has been developed based on this exercise. Current work is focused on the extent to which the techniques and methods can be generalized. The HEU Round Robin demonstrated a rather high level of capability to determine the important characteristics of the materials and processes using analytical methods. When this capability is combined with the appropriate knowledge/database, it results in a significant capability to attribute the source of the materials to a specific process or facility. A number of shortfalls were also identified in the current capabilities including procedures for non-nuclear forensics and the lack of a comprehensive network of data/knowledge bases. The results of the Round Robin will be used to develop guidelines or a ''recommended protocol'' to be made available to the interested authorities and countries to use in real cases

Levels of desertification risk in the Sicilian forests according to MEDALUS-ESPI protocol

Science.gov (United States)

Ragusa, M. A.; Rapicavoli, V.

2017-07-01

The authors estimated the desertification risk in a specific area of the Mediterranean, analyzing the main types of forests and reforestation. Through the Environmentally Sensitive Patch Index (ESPI), the authors have made an overall risk ranking in the woods, in the Sicily Region, simulated up to 2030. It is inferred that the risk of desertification in the forests of Sicily region is now reduced. In the last fifty years the forests were reduced by 17.4 percent, they remained unchanged for 21 percent, were up 61.6 percent at the end of the twentieth century.

International Technical Working Group Round Robin Tests

Energy Technology Data Exchange (ETDEWEB)

Dudder, Gordon B.; Hanlen, Richard C.; Herbillion, Georges M.

2003-02-01

The goal of nuclear forensics is to develop a preferred approach to support illicit trafficking investigations. This approach must be widely understood and accepted as credible. The principal objectives of the Round Robin Tests are to prioritize forensic techniques and methods, evaluate attribution capabilities, and examine the utility of database. The HEU (Highly Enriched Uranium) Round Robin, and previous Plutonium Round Robin, have made tremendous contributions to fulfilling these goals through a collaborative learning experience that resulted from the outstanding efforts of the nine participating internal laboratories. A prioritized list of techniques and methods has been developed based on this exercise. Current work is focused on the extent to which the techniques and methods can be generalized. The HEU Round Robin demonstrated a rather high level of capability to determine the important characteristics of the materials and processes using analytical methods. When this capability is combined with the appropriate knowledge/database, it results in a significant capability to attribute the source of the materials to a specific process or facility. A number of shortfalls were also identified in the current capabilities including procedures for non-nuclear forensics and the lack of a comprehensive network of data/knowledge bases. The results of the Round Robin will be used to develop guidelines or a ''recommended protocol'' to be made available to the interested authorities and countries to use in real cases.

Generalized Robin Boundary Conditions, Robin-to-Dirichlet Maps, and Krein-Type Resolvent Formulas for Schr\\"odinger Operators on Bounded Lipschitz Domains

OpenAIRE

Gesztesy, Fritz; Mitrea, Marius

2008-01-01

We study generalized Robin boundary conditions, Robin-to-Dirichlet maps, and Krein-type resolvent formulas for Schr\\"odinger operators on bounded Lipschitz domains in $\\bbR^n$, $n\\ge 2$. We also discuss the case of bounded $C^{1,r}$-domains, $(1/2)

Recommended Protocol for Round Robin Studies in Additive Manufacturing

Science.gov (United States)

Moylan, Shawn; Brown, Christopher U.; Slotwinski, John

2016-01-01

One way to improve confidence and encourage proliferation of additive manufacturing (AM) technologies and parts is by generating more high quality data describing the performance of AM processes and parts. Many in the AM community see round robin studies as a way to generate large data sets while distributing the cost among the participants, thereby reducing the cost to individual users. The National Institute of Standards and Technology (NIST) has conducted and participated in several of these AM round robin studies. While the results of these studies are interesting and informative, many of the lessons learned in conducting these studies concern the logistics and methods of the study and unique issues presented by AM. Existing standards for conducting interlaboratory studies of measurement methods, along with NIST’s experience, form the basis for recommended protocols for conducting AM round robin studies. The role of round robin studies in AM qualification, some of the limitations of round robin studies, and the potential benefit of less formal collaborative experiments where multiple factors, AM machine being only one, are varied simultaneously are also discussed. PMID:27274602

The ATLAS ROBIN. A high-performance data-acquisition module

Energy Technology Data Exchange (ETDEWEB)

Kugel, Andreas

2009-08-19

This work presents the re-configurable processor ROBIN, which is a key element of the data-acquisition-system of the ATLAS experiment, located at the new LHC at CERN. The ATLAS detector provides data over 1600 channels simultaneously towards the DAQ system. The ATLAS dataflow model follows the ''PULL'' strategy in contrast to the commonly used ''PUSH'' strategy. The data volume transported is reduced by a factor of 10, however the data must be temporarily stored at the entry to the DAQ system. The input layer consists of approx. 160 ROS read-out units comprising 1 PC and 4 ROBIN modules. Each ROBIN device acquires detector data via 3 input channels and performs local buffering. Board control is done via a 64-bit PCI interface. Event selection and data transmission runs via PCI in the baseline bus-based ROS. Alternatively, a local GE interface can take over part or all of the data traffic in the switch-based ROS, in order to reduce the load on the host PC. The performance of the ROBIN module stems from the close cooperation of a fast embedded processor with a complex FPGA. The efficient task-distribution lets the processor handle all complex management functionality, programmed in ''C'' while all movement of data is performed by the FPGA via multiple, concurrently operating DMA engines. The ROBIN-project was carried-out by and international team and comprises the design specification, the development of the ROBIN hardware, firmware (VHDL and C-Code), host-code (C++), prototyping, volume production and installation of 700 boards. The project was led by the author of this thesis. The hardware platform is an evolution of a FPGA processor previously designed by the author. He has contributed elementary concepts of the communication mechanisms and the ''C''-coded embedded application software. He also organised and supervised the prototype and series productions including the various design reports and presentations. The results show that the ROBIN-module is able to meet

The ATLAS ROBIN. A high-performance data-acquisition module

International Nuclear Information System (INIS)

Kugel, Andreas

2009-01-01

This work presents the re-configurable processor ROBIN, which is a key element of the data-acquisition-system of the ATLAS experiment, located at the new LHC at CERN. The ATLAS detector provides data over 1600 channels simultaneously towards the DAQ system. The ATLAS dataflow model follows the ''PULL'' strategy in contrast to the commonly used ''PUSH'' strategy. The data volume transported is reduced by a factor of 10, however the data must be temporarily stored at the entry to the DAQ system. The input layer consists of approx. 160 ROS read-out units comprising 1 PC and 4 ROBIN modules. Each ROBIN device acquires detector data via 3 input channels and performs local buffering. Board control is done via a 64-bit PCI interface. Event selection and data transmission runs via PCI in the baseline bus-based ROS. Alternatively, a local GE interface can take over part or all of the data traffic in the switch-based ROS, in order to reduce the load on the host PC. The performance of the ROBIN module stems from the close cooperation of a fast embedded processor with a complex FPGA. The efficient task-distribution lets the processor handle all complex management functionality, programmed in ''C'' while all movement of data is performed by the FPGA via multiple, concurrently operating DMA engines. The ROBIN-project was carried-out by and international team and comprises the design specification, the development of the ROBIN hardware, firmware (VHDL and C-Code), host-code (C++), prototyping, volume production and installation of 700 boards. The project was led by the author of this thesis. The hardware platform is an evolution of a FPGA processor previously designed by the author. He has contributed elementary concepts of the communication mechanisms and the ''C''-coded embedded application software. He also organised and supervised the prototype and series productions including the various design reports and presentations. The results show that the ROBIN-module is able to meet

Round-Robin Test of Paraffin Phase-Change Material

Science.gov (United States)

Vidi, S.; Mehling, H.; Hemberger, F.; Haussmann, Th.; Laube, A.

2015-11-01

A round-robin test between three institutes was performed on a paraffin phase-change material (PCM) in the context of the German quality association for phase-change materials. The aim of the quality association is to define quality and test specifications for PCMs and to award certificates for successfully tested materials. To ensure the reproducibility and comparability of the measurements performed at different institutes using different measuring methods, a round-robin test was performed. The sample was unknown. The four methods used by the three participating institutes in the round-robin test were differential scanning calorimetry, Calvet calorimetry and three-layer calorimetry. Additionally, T-history measurements were made. The aim of the measurements was the determination of the enthalpy as a function of temperature. The results achieved following defined test specifications are in excellent agreement.

Piping inspection round robin

International Nuclear Information System (INIS)

Heasler, P.G.; Doctor, S.R.

1996-04-01

The piping inspection round robin was conducted in 1981 at the Pacific Northwest National Laboratory (PNNL) to quantify the capability of ultrasonics for inservice inspection and to address some aspects of reliability for this type of nondestructive evaluation (NDE). The round robin measured the crack detection capabilities of seven field inspection teams who employed procedures that met or exceeded the 1977 edition through the 1978 addenda of the American Society of Mechanical Engineers (ASME) Section 11 Code requirements. Three different types of materials were employed in the study (cast stainless steel, clad ferritic, and wrought stainless steel), and two different types of flaws were implanted into the specimens (intergranular stress corrosion cracks (IGSCCs) and thermal fatigue cracks (TFCs)). When considering near-side inspection, far-side inspection, and false call rate, the overall performance was found to be best in clad ferritic, less effective in wrought stainless steel and the worst in cast stainless steel. Depth sizing performance showed little correlation with the true crack depths

The ATLAS ROBIN. A high-performance data-acquisition module

Energy Technology Data Exchange (ETDEWEB)

Kugel, Andreas

2009-08-19

This work presents the re-configurable processor ROBIN, which is a key element of the data-acquisition-system of the ATLAS experiment, located at the new LHC at CERN. The ATLAS detector provides data over 1600 channels simultaneously towards the DAQ system. The ATLAS dataflow model follows the ''PULL'' strategy in contrast to the commonly used ''PUSH'' strategy. The data volume transported is reduced by a factor of 10, however the data must be temporarily stored at the entry to the DAQ system. The input layer consists of approx. 160 ROS read-out units comprising 1 PC and 4 ROBIN modules. Each ROBIN device acquires detector data via 3 input channels and performs local buffering. Board control is done via a 64-bit PCI interface. Event selection and data transmission runs via PCI in the baseline bus-based ROS. Alternatively, a local GE interface can take over part or all of the data traffic in the switch-based ROS, in order to reduce the load on the host PC. The performance of the ROBIN module stems from the close cooperation of a fast embedded processor with a complex FPGA. The efficient task-distribution lets the processor handle all complex management functionality, programmed in ''C'' while all movement of data is performed by the FPGA via multiple, concurrently operating DMA engines. The ROBIN-project was carried-out by and international team and comprises the design specification, the development of the ROBIN hardware, firmware (VHDL and C-Code), host-code (C++), prototyping, volume production and installation of 700 boards. The project was led by the author of this thesis. The hardware platform is an evolution of a FPGA processor previously designed by the author. He has contributed elementary concepts of the communication mechanisms and the ''C''-coded embedded application software. He also organised and supervised the prototype and series productions including the various design

Negative ion beam extraction in ROBIN

International Nuclear Information System (INIS)

Bansal, Gourab; Gahlaut, Agrajit; Soni, Jignesh; Pandya, Kaushal; Parmar, Kanu G.; Pandey, Ravi; Vuppugalla, Mahesh; Prajapati, Bhavesh; Patel, Amee; Mistery, Hiren; Chakraborty, Arun; Bandyopadhyay, Mainak; Singh, Mahendrajit J.; Phukan, Arindam; Yadav, Ratnakar K.; Parmar, Deepak

2013-01-01

Highlights: ► A RF based negative hydrogen ion beam test bed has been set up at IPR, India. ► Ion source has been successfully commissioned and three campaigns of plasma production have been carried out. ► Extraction system (35 kV) has been installed and commissioning has been initiated. Negative ion beam extraction is immediate milestone. -- Abstract: The RF based single driver −ve ion source experiment test bed ROBIN (Replica Of BATMAN like source in INDIA) has been set up at Institute for Plasma Research (IPR), India in a technical collaboration with IPP, Garching, Germany. A hydrogen plasma of density 5 × 10 12 cm −3 is expected in driver region of ROBIN by launching 100 kW RF power into the driver by 1 MHz RF generator. The cesiated source is expected to deliver a hydrogen negative ion beam of 10 A at 35 kV with a current density of 35 mA/cm 2 as observed in BATMAN. In first phase operation of the ROBIN ion source, a hydrogen plasma has been successfully generated (without extraction system) by coupling 80 kW RF input power through a matching network with high power factor (cos θ > 0.8) and different plasma parameters have been measured using Langmuir probes and emission spectroscopy. The plasma density of 2.5 × 10 11 cm −3 has been measured in the extraction region of ROBIN. For negative hydrogen ion beam extraction in second phase operation, extraction system has been assembled and installed with ion source on the vacuum vessel. The source shall be first operated in volume mode for negative ion beam extraction. The commissioning of the source with high voltage power supply has been initiated

Anomalia Pierre Robin: cuidados

Directory of Open Access Journals (Sweden)

Maria Irene Bachega

1985-12-01

Full Text Available A anomalia de Pierre Robin, ocupa papel relevante nas ações de saúde do Hospital de Pesquisa e Reabilitação de Lesões Lábio-Palatais (HPRLLP, pelas suas características peculiares (micrognatia, glossoptose, palato hiperarqueado ou fissurado, língua ocupando posição retraída, ocasionando cianose, tiragem, opistotomo e pneumonias de aspiração, exigindo, portanto, cuidados médicos e de enfermagem específicos. Dentre as malformações associadas a fissura lábio-palatal, a anomalia de Pierre Robin é a que apresenta maior freqüência, exigindo maiores cuidados, daí a importância de podermos relatar a Pesquisa realizada em nosso serviço, fornecendo aos profissionais de saúde, subsídios para que possam delinear uma abordagem eficaz, orientando os cuidados referentes ao posicionamento da criança, técnica de alimentação, e assistência pré e pós-operatória.

Wild North Island Robins (Petroica longipes respond to Prey Animacy

Directory of Open Access Journals (Sweden)

Alexis Garland

2014-08-01

Full Text Available North Island robins of New Zealand are a food hoarding species, which is unique in that they almost exclusively cache highly perishable hunted insects for later retrieval. In order to do so, they either kill and dismember or paralyze their prey for caching, depending on the prey size and kind. The present study comprises two experiments, using a Violation of Expectancy (VoE paradigm to examine variation in search behavior response to different prey conditions. The first experiment presents three different types of prey (mealworms, earthworms and locusts in expected (present and unexpected (absent conditions. The second experiment presents prey in varying states of animacy (alive and whole, dead and whole, dead and halved, and an inanimate stick and reveals prey in expected (same state or unexpected (differing state conditions. While robins did not respond with differential search times to different types of unexpectedly missing prey in Experiment 1, in Experiment 2 robins searched longer in conditions where prey was found in a differing state of animacy than initially shown. Robins also searched longer for prey when immediately consuming retrieved prey than when caching retrieved prey. Results indicate that North Island robins may be sensitive to prey animacy upon storage and retrieval of insect prey; such information could play a role in storage, pilfering and retrieval strategies of such a perishable food source.

"Ameeriklane" Robin Hood / Timo Diener

Index Scriptorium Estoniae

Diener, Timo

2005-01-01

Mängufilmi "Robin Hood : varaste prints" võtetest. Režissöör Kevin Reynolds, peaosas Kevin Costner, USA 1991. Järg: Teleleht nr. 14, 11. aprill 2005, lk. 38 : ill ja Teleleht nr. 15, 18. aprill 2005, lk. 38 : ill

The ATLAS ROBIN – A High-Performance Data-Acquisition Module

CERN Document Server

Kugel, Andreas

2009-01-01

This work presents the re-configurable processor ROBIN, which is a key element of the data-acquisition-system of the ATLAS experiment, located at the new LHC at CERN. The ATLAS detector provides data over 1600 channels simultaneously towards the DAQ system. The ATLAS dataflow model follows the “PULL” strategy in contrast to the commonly used “PUSH” strategy. The data volume transported is reduced by a factor of 10, however the data must be temporarily stored at the entry to the DAQ system. The input layer consists of approx. 160 ROS read-out units comprising 1 PC and 4 ROBIN modules. Each ROBIN device acquires detector data via 3 input channels and performs local buffering. Board control is done via a 64-bit PCI interface. Event selection and data transmission runs via PCI in the baseline bus-based ROS. Alternatively, a local GE interface can take over part or all of the data traffic in the switch-based ROS, in order to reduce the load on the host PC. The performance of the ROBIN module stems from the...

An Embedded Real-Time System on ATLAS ROBIN

OpenAIRE

Yu, Maoyuan

2012-01-01

ATLAS is the largest particle detector at the Large Hadron Collider for high energy physics experiments that produces over 40 TB/s event data. The ATLAS Readout Buffer INput(ROBIN) subsystem is an essential device to buffer and reduce the data, which has a IBM PowerPC core for the control functionalities. This dissertation addresses the software design of an embedded real-time system centering on the PowerPC micro-controller, as the management core of the ROBIN. A page-based solution is pr...

Study of a vibrating plate: comparison between experimental (ESPI) and analytical results

Science.gov (United States)

Romero, G.; Alvarez, L.; Alanís, E.; Nallim, L.; Grossi, R.

2003-07-01

Real-time electronic speckle pattern interferometry (ESPI) was used for tuning and visualization of natural frequencies of a trapezoidal plate. The plate was excited to resonant vibration by a sinusoidal acoustical source, which provided a continuous range of audio frequencies. Fringe patterns produced during the time-average recording of the vibrating plate—corresponding to several resonant frequencies—were registered. From these interferograms, calculations of vibrational amplitudes by means of zero-order Bessel functions were performed in some particular cases. The system was also studied analytically. The analytical approach developed is based on the Rayleigh-Ritz method and on the use of non-orthogonal right triangular co-ordinates. The deflection of the plate is approximated by a set of beam characteristic orthogonal polynomials generated by using the Gram-Schmidt procedure. A high degree of correlation between computational analysis and experimental results was observed.

Round robin scheduling - a survey

DEFF Research Database (Denmark)

Rasmussen, Rasmus Vinther; Trick, Michael A.

2008-01-01

This paper presents a comprehensive survey on the literature considering round robin tournaments. The terminology used within the area has been modified over time and today it is highly inconsistent. By presenting a coherent explanation of the various notions we hope that this paper will help to ...

The use of Electronic Speckle Pattern Interferometry (ESPI) in the crack propagation analysis of epoxy resins

Science.gov (United States)

Herbert, D. P.; Al-Hassani, A. H. M.; Richardson, M. O. W.

The ESPI (electronic speckle pattern interferometry) technique at high magnification levels is demonstrated to be of considerable value in interpreting the fracture behaviour of epoxy resins. The fracture toughness of powder coating system at different thicknesses has been measured using a TDCB (tapered double cantilever beam) technique and the deformation zone at the tip of the moving crack monitored. Initial indications are that a mechanistic changeover occurs at a critical bond (coating) thickness and that this is synonymous with the occurence of a fracture toughness maximum, which in turn is associated with a deformation zone of specific diameter.

A calculational round robin in elastic-plastic fracture mechanics

International Nuclear Information System (INIS)

Larsson, L.H.

Eighteen organizations participated in this round robin which treated the same three-point bend problem as an ASTM round robin four years earlier. Overall deformation, J, CTOD and crack profile were the main results required using plane strain elastic-plastic finite element analysis for a monotonically increasing load up to a maximum deformation which was far beyond the elastic regime. All elastic solutions were accurate to within a few percent. In the elastic-plastic regime, however, there was a large scatter of the results, increasing with increasing plastic deformation and roughly of the same order as in the ASTM round robin which contained ten solutions. Apparently no significant progress has taken place in the state of the art of numerical EPFM analysis in four years time. The paper discusses the reasons for this scatter and draws tentative conclusions on the most suitable numerical analysis methods in EPFM. (Auth.)

A calculational round robin in elastic-plastic fracture mechanics

International Nuclear Information System (INIS)

Larsson, L.H.

1983-01-01

Eighteen organisations participated in this elastic-plastic fracture mechanics (EPFM) numerical analysis round robin which treated the same three-point bend problem as a similar round robin conducted by ASTM four years earlier. The work involved the calculation of overall deformation, J, CTOD and crack profile using plane strain elastic-plastic finite element analysis for a monotonically increasing load up to a maximum deformation which was far beyond the elastic regime. It was found that all of the elastic solutions were accurate to within a few per cent. In the elastic-plastic regime, however, there was a large scatter of the results, increasing with increasing plastic deformation and roughly of the same order as in the ASTM round robin which contained ten solutions. No significant progress has taken place in the state of the art of numerical EPFM analysis over the four-year interval. The reasons for this scatter and tentative conclusions on the most suitable numerical analysis methods in EPFM are discussed. (author)

Scheduling double round-robin tournaments with divisional play using constraint programming

Energy Technology Data Exchange (ETDEWEB)

Carlsson, Mats; Johansson, Mikael; Larson, Jeffrey

2017-06-01

We study a tournament format that extends a traditional double round-robin format with divisional single round-robin tournaments. Elitserien, the top Swedish handball league, uses such a format for its league schedule. We present a constraint programming model that characterizes the general double round-robin plus divisional single round-robin format. This integrated model allows scheduling to be performed in a single step, as opposed to common multistep approaches that decompose scheduling into smaller problems and possibly miss optimal solutions. In addition to general constraints, we introduce Elitserien-specific requirements for its tournament. These general and league-specific constraints allow us to identify implicit and symmetry-breaking properties that reduce the time to solution from hours to seconds. A scalability study of the number of teams shows that our approach is reasonably fast for even larger league sizes. The experimental evaluation of the integrated approach takes considerably less computational effort to schedule Elitserien than does the previous decomposed approach. (C) 2016 Elsevier B.V. All rights reserved

Measurement of heat treatment induced residual stresses by using ESPI combined with hole-drilling method

Directory of Open Access Journals (Sweden)

Jie Cheng

2010-08-01

Full Text Available In this study, residual stresses in heat treated specimen were measured by using ESPI (Electronic Speckle-Pattern Interferometry combined with the hole-drilling method. The specimen, made of SUS 304 austenitic stainless steel, was quenched and water cooled to room temperature. Numerical simulation using a hybrid FDM/FEM package was also carried out to simulate the heat treatment process. As a result, the thermal stress fields were obtained from both the experiment and the numerical simulation. By comparision of stress fields, results from the experimental method and numerical simulation well agreed to each other, therefore, it is proved that the presented experimental method is applicable and reliable for heat treatment induced residual stress measurement.

Summary of results from the IPIRG-2 round-robin analyses

International Nuclear Information System (INIS)

Rahman, S.; Olson, R.; Rosenfield, A.; Wilkowski, G.

1996-02-01

This report presents a summary of the results from three one-day international round-robin workshops which were organized by Battelle in conjunction with the Second International Piping Integrity Research Group (IPIRG-2) Program. The objective of these workshops was to develop a consensus in handling difficult analytical problems in leak-before-break and pipe flaw evaluations. The workshops, which were held August 5, 1993, March 4, 1994, and October 21, 1994 at Columbus, Ohio, involved various technical presentations on the related research efforts by the IPIRG-2 member organizations and solutions to several round-robin problems. Following review by the IPIRG-2 members, four sets of round-robin problems were developed. They involved: (1) evaluations of fracture properties and pipe loads, (2) crack-opening and leak-rate evaluations, (3) dynamic analysis of cracked pipes, and (4) evaluations of elbows. A total of 18 organizations from the United States, Japan, Korea, and Europe solved these round-robin problems. The analysis techniques employed by the participants included both finite element and engineering methods. Based on the results from these analyses, several important observations were made concerning the predictive capability of the current fracture-mechanics and thermal-hydraulics models for their applications in nuclear piping and piping welds

Robin Cook tundis Eestis kodusoojust / Kaarel Kaas

Index Scriptorium Estoniae

Kaas, Kaarel, 1978-

1999-01-01

Suurbritannia välisministri Robin Cooki visiit kulmineerus uue saatkonna ametliku avamisega. Kommentaar kahe riigi suhetest : A. Tarand, S. Lõoke, A. Laaneots, G. Aarma. Lisa : Välisriikide ametnike visiidid Eestisse 1996-1999

Robin Hoodist Oidipuseni / Pille-Riin Purje

Index Scriptorium Estoniae

Purje, Pille-Riin, 1963-

1996-01-01

'Ugala' külalisetendused Tallinnas: David Neilsoni 'Robin Hood' (lav. Peeter Tammearu); Mihhail Bulgakovi 'Poolearuline Jourdain' (lav. Üllar Saaremäe); Tirso de Molina 'Kadunud sõrmus' (lav. Andres Noormets); Talvo Pabuti 'Oidipuse kompleks' (lav. Andres Lepik); Anton Tshehhovi 'Kirsiaed' (lav. Kaarin Raid)

The EWGRD Round Robin Measurement Exercise

Science.gov (United States)

Thornton, D. A.; Wagemans, J.; Fernandes, A. C.; Girard, J. M.; Kis, D. P.; Klupák, V.; Mutnuru, R.; Philibert, H.; Rousseau, G.; Santos, J. P.; Serén, T.; Zsolnay, E. M.

2016-02-01

This paper presents the results of a round robin exercise carried out to compare specific activity measurements performed by eight European organisations on a set of ten neutron activation detectors containing the radio-nuclides 110mAg, 60Co, 54Mn, 46Sc and 94Nb. The purpose of the exercise was to demonstrate the level of consistency between the participating organisations in blind tests of measurements relevant to reactor metrology. The samples used were selected from a stock of pre-existing irradiated material held at SCK•CEN. Taking turns over a period of approximately 9 months, the participating organisations received the samples, measured them and provided their results to an independent referee who collated and compared the data. The inter-comparison has demonstrated good agreement between the participants with standard deviations for each dosimeter varying between 1.6% and 3.1%. The paper provides results of the EWGRD Round Robin in an anonymised form together with discussion and conclusions which may be drawn from the exercise.

Genetics Home Reference: isolated Pierre Robin sequence

Science.gov (United States)

... or Free article on PubMed Central Mackay DR. Controversies in the diagnosis and management of the Robin ... Site Map Subscribe Customer Support USA.gov Copyright Privacy Accessibility FOIA Viewers & Players U.S. Department of Health & ...

West Nile virus infection in American Robins: new insights on dose response.

Directory of Open Access Journals (Sweden)

Kaci K VanDalen

Full Text Available West Nile virus (WNV is a vector-borne pathogen that was first detected in the United States in 1999. The natural transmission cycle of WNV involves mosquito vectors and avian hosts, which vary in their competency to transmit the virus. American robins are an abundant backyard species in the United States and appear to have an important role in the amplification and dissemination of WNV. In this study we examine the response of American robins to infection with various WNV doses within the range of those administered by some natural mosquito vectors. Thirty American robins were assigned a WNV dosage treatment and needle inoculated with 10(0.95 PFU, 10(1.26 PFU, 10(2.15 PFU, or 10(3.15 PFU. Serum samples were tested for the presence of infectious WNV and/or antibodies, while oral swabs were tested for the presence of WNV RNA. Five of the 30 (17% robins had neutralizing antibodies to WNV prior to the experiment and none developed viremia or shed WNV RNA. The proportion of WNV-seronegative birds that became viremic after WNV inoculation increased in a dose dependent manner. At the lowest dose, only 40% (2/5 of the inoculated birds developed productive infections while at the highest dose, 100% (7/7 of the birds became viremic. Oral shedding of WNV RNA followed a similar trend where robins inoculated with the lower two doses were less likely to shed viral RNA (25% than robins inoculated with one of the higher doses (92%. Viremia titers and morbidity did not increase in a dose dependent manner; only two birds succumbed to infection and, interestingly, both were inoculated with the lowest dose of WNV. It is clear that the disease ecology of WNV is a complex interplay of hosts, vectors, and viral dose delivered.

Uncertainty analysis using Monte Carlo method in the measurement of phase by ESPI

International Nuclear Information System (INIS)

Anguiano Morales, Marcelino; Martinez, Amalia; Rayas, J. A.; Cordero, Raul R.

2008-01-01

A method for simultaneously measuring whole field in-plane displacements by using optical fiber and based on the dual-beam illumination principle electronic speckle pattern interferometry (ESPI) is presented in this paper. A set of single mode optical fibers and beamsplitter are employed to split the laser beam into four beams of equal intensity.One pair of fibers is utilized to illuminate the sample in the horizontal plane so it is sensitive only to horizontal in-plane displacement. Another pair of optical fibers is set to be sensitive only to vertical in-plane displacement. Each pair of optical fibers differs in longitude to avoid unwanted interference. By means of a Fourier-transform method of fringe-pattern analysis (Takeda method), we can obtain the quantitative data of whole field displacements. We found the uncertainty associated with the phases by mean of Monte Carlo-based technique

Nordic numerical round robin for a side-grooved ct-specimen

International Nuclear Information System (INIS)

Talja, H.

1989-11-01

The reliability of fracture mechanics assessments based on finite element method calculations has to be confirmed before making safety assessments for critical components like nuclear pressure vessels. Calculations for simulation of fracture mechanics tests and numerical round robin programmes are useful methods in such verification. In this report the results of Nordic finite element round robin calculations for a side-grooved CT-specimen are presented and compared with experimental results. The round robin consisted of two parts. In the first part two-dimensional calculations assuming plane strain and plane stress behaviour were made. In the second part extensive three-dimensional calculations were performed for best-estimate analysis of the specimen behaviour. The differences between the solutions were comparatively small. Only one two-dimensional solution, where lower order finite elements were used, deviated clearly from the other ones. A good agreement was seen between two-dimensional plane strain results and experimental results. Three-dimensional calculations corresponded very accurately with each others and the experiment

Enhanced round robin CPU scheduling with burst time based time quantum

Science.gov (United States)

Indusree, J. R.; Prabadevi, B.

2017-11-01

Process scheduling is a very important functionality of Operating system. The main-known process-scheduling algorithms are First Come First Serve (FCFS) algorithm, Round Robin (RR) algorithm, Priority scheduling algorithm and Shortest Job First (SJF) algorithm. Compared to its peers, Round Robin (RR) algorithm has the advantage that it gives fair share of CPU to the processes which are already in the ready-queue. The effectiveness of the RR algorithm greatly depends on chosen time quantum value. Through this research paper, we are proposing an enhanced algorithm called Enhanced Round Robin with Burst-time based Time Quantum (ERRBTQ) process scheduling algorithm which calculates time quantum as per the burst-time of processes already in ready queue. The experimental results and analysis of ERRBTQ algorithm clearly indicates the improved performance when compared with conventional RR and its variants.

Robin sequence associated with karyotypic mosaicism involving chromosome 22 abnormalities

Energy Technology Data Exchange (ETDEWEB)

Salinas, C.F.; Jastrzab, J.M.; Centu, E.S. [Medical Univ. of South Carolina, Charleston, SC (United States)

1994-09-01

Robin sequence is characterized by cleft palate, hypoplastic mandible, glossoptosis and respiratory difficulties. The Robin sequence may be observed as an isolated defect or as part of about 33 syndromes; however, to our knowledge, it has never been reported associated with chromosome 22 abnormalities. We examined a two-month-old black boy with a severe case of Robin sequence. Exam revealed a small child with hypoplastic mandible, glossoptosis, high palate and respiratory difficulty with continuous apnea episodes resulting in cyanotic lips and nails. In order to relieve the upper airway obstruction, his tongue was attached to the lower lip. Later a tracheostomy was performed. On follow-up exam, this patient was found to have developmental delay. Cytogenetic studies of both peripheral blood and fibroblast cells showed mosaicism involving chromosome 22 abnormalities which were designated as follows: 45,XY,-22/46,XY,-22,+r(22)/46,XY. Fluorescence in situ hybridization (FISH) studies confirmed the identity of the r(22) and showed the presence of the DiGeorge locus (D22575) but the absence of the D22539 locus which maps to 22q13.3. Reported cases of r(22) show no association with Robin sequence. However, r(22) has been associated with flat bridge of the nose, bulbous tip of the nose, epicanthus and high palate, all characteristics that we also observed in this case. These unusual cytogenetic findings may be causally related to the dysmorphology found in the patient we report.

Robin Huws Jones (United Kingdom, President 1976- 1980

Directory of Open Access Journals (Sweden)

2008-07-01

Full Text Available Robin Huws Jones, President of the International Association of Schools of Social Work from 1976 to 1980, lived a life of challenge and change. Born in Wales in 1909, he often remarked that learning to speak Welsh at age two was such a challenge that he didn’t bother to learn English until he was six. The death of his mother when he was three led to the first of many changes in a life that was not easy in the formative years. Robin remained in the care of his father while his sister became the ward of two aunts. With his father, a draper’sassistant, he left Wales to live in a crowded boarding house in Liverpool.

System upgradation for surface mode negative ion beam extraction experiments in ROBIN

International Nuclear Information System (INIS)

Pandya, Kaushal; Bansal, Gourab; Soni, Jignesh

2015-01-01

ROBIN (Replica Of BATMAN source in India) is a replica of BATMAN source of IPP, Garching. Plasma production (inductively coupled, RF produced plasma), plasma diagnostic (langmuir probe, optical emission spectroscopy), negative ion beam extraction in volume mode with reduced extraction area of 2 cm 2 (4 apertures) using small bench top type power supply (10kV, 400mA), with increase extraction area of 73 cm 2 (146 apertures) and using actual power supplies (Extraction Power Supply System, EPSS (11kV, 35A), and Accelerator Power Supply System, APSS (35kV, 15A)) and beam diagnostic etc have been performed successfully in ROBIN. This paper will describe the details of the system upgradation for surface mode negative ion experiments and its performance in ROBIN

Round robin 'Impurities in uranium matrix': a success for CETAMA and IAEA

International Nuclear Information System (INIS)

Granier, Guy; Roudil, Daniele; Balsley, Steven Devry; Bulyha, Siarhei; Aregbe, Yetunde

2012-01-01

The safeguard of nuclear material is of paramount importance to the IAEA which increasingly uses this information for characterization purposes in order to strengthen the verification of declared nuclear material and to identify the origin of samples from mines. IAEA tasked CETAMA to conduct a round robin with objective to evaluate the capability of laboratories to measure impurities in uranium with concentration levels between 1 and 500 ppm relative to uranium. This round robin was attended by 17 international laboratories from the nuclear industry and safeguards community. The results are mainly obtained by ICP-MS and ICP-AES. The synthesis of this round robin were helpful in identifying anomalies and will allow the IAEA to better set realistic measurement performance targets for ICP-MS and ICP-AES. (authors)

International Round-Robin Testing of Bulk Thermoelectrics

Energy Technology Data Exchange (ETDEWEB)

Wang, Hsin [ORNL; Porter, Wallace D [ORNL; Bottner, Harold [Fraunhofer-Institute, Freiburg, Germany; Konig, Jan [Fraunhofer-Institute, Freiburg, Germany; Chen, Lidong [Chinese Academy of Sciences; Bai, Shengqiang [Chinese Academy of Sciences; Tritt, Terry M. [Clemson University; Mayolett, Alex [Corning, Inc; Smith, Charlene [Corning, Inc; Harris, Fred [ZT-Plus; Sharp, Jeff [Marlow Industries, Inc; Lo, Jason [CANMET - Materials Technology Laboratory, Natural Resources of Canada; Keinke, Holger [University of Waterloo, Canada; Kiss, Laszlo I. [University of Quebec at Chicoutimi

2011-11-01

Two international round-robin studies were conducted on transport properties measurements of bulk thermoelectric materials. The study discovered current measurement problems. In order to get ZT of a material four separate transport measurements must be taken. The round-robin study showed that among the four properties Seebeck coefficient is the one can be measured consistently. Electrical resistivity has +4-9% scatter. Thermal diffusivity has similar +5-10% scatter. The reliability of the above three properties can be improved by standardizing test procedures and enforcing system calibrations. The worst problem was found in specific heat measurements using DSC. The probability of making measurement error is great due to the fact three separate runs must be taken to determine Cp and the baseline shift is always an issue for commercial DSC. It is suggest the Dulong Petit limit be always used as a guide line for Cp. Procedures have been developed to eliminate operator and system errors. The IEA-AMT annex is developing standard procedures for transport properties testing.

A tabu-search for minimising the carry-over effects value of a round-robin tournament

Directory of Open Access Journals (Sweden)

MP Kidd

2010-12-01

Full Text Available A player b in a round-robin sports tournament receives a carry-over effect from another player a if some third player opposes a in round i and b in round i+1. Let γ(ab denote the number of times player b receives a carry-over effect from player a during a tournament. Then the carry-over effects value of the entire tournament T on n players is given by Γ(T=ΣΣγ(ij^2. Furthermore, let Γ(n denote the minimum carry-over effects value over all round-robin tournaments on n players. A strict lower bound on Γ(n is n(n-1 (in which case there exists a round-robin tournament of order n such that each player receives a carry-over effect from each other player exactly once, and it is known that this bound is attained for n=2^r or n=20,22. It is also known that round-robin tournaments can be constructed from so-called starters; round-robin tournaments constructed in this way are called cyclic. It has previously been shown that cyclic round-robin tournaments have the potential of admitting small values for Γ(T, and in this paper a tabu-search is used to find starters which produce cyclic tournaments with small carry-over effects values. The best solutions in the literature are matched for n<=22, and new upper bounds are established on Γ(n for 24<=n<=40.

Early postnatal development of the mandible in children with isolated cleft palate and children with nonsyndromic Robin sequence

DEFF Research Database (Denmark)

Eriksen, J.; Hermann, N.V.; Darvann, Tron Andre

2006-01-01

Objective: Analysis of early postnatal mandibular size and growth velocity in children with untreated isolated cleft palate (ICP), nonsyndromic Robin sequence (RS), and a control group of children with unilateral incomplete cleft lip (UICL). Material: 114 children (66 isolated cleft palate, 7 Robin...... and mandibular growth velocity (mm/year) was calculated. Cleft width was measured on the casts at 2 months of age. Results: Mean mandibular length and posterior height were significantly smaller in isolated cleft palate and Robin sequence, compared with unilateral incomplete cleft lip. Mandibular length in Robin...... sequence was also significantly shorter, compared with isolated cleft palate. No significant difference was found between mean mandibular growth velocities in the three groups. No significant correlation was found between mandibular length and cleft width in either isolated cleft palate or Robin sequence...

Reactor Pressure Vessel P-T Limit Curve Round Robin

Energy Technology Data Exchange (ETDEWEB)

Jang, C.H.; Moon, H.R.; Jeong, I.S. [Korea Electric Power Research Institute, Taejon (Korea)

2002-07-01

This report is the summary of the analysis results for the P-T Limit Curve construction which have been subjected to the round robin analysis. The purpose of the round robin is to compare the procedure and method used in various organizations to construct P-T limit curve to prevent brittle fracture of reactor pressure vessel of nuclear power plants. Each Participant used its own approach to construct the P-T limit curve and submitted the results, By analyzing the results, the reference procedure for the P-T limit curve could be established. This report include the results of the comparison of the procedure and method used by the participants, and sensitivity study of the key parameters. (author) 23 refs, 88 figs, 17 tabs.

Round robin performance testing of organic photovoltaic devices

DEFF Research Database (Denmark)

Gevorgyan, Suren; Zubillaga, Oihana; de Seoane, José María Vega

2014-01-01

This study addresses the issue of poor intercomparability of measurements of organic photovoltaic (OPV) devices among different laboratories. We present a round robin performance testing of novel OPV devices among 16 laboratories, organized within the framework of European Research Infrastructure...

Round robin test for zirconium alloys in 400 deg C steam: results from EDF

International Nuclear Information System (INIS)

Blat, M.

1994-01-01

The EDF Material Studies Branch has participated in the Round Robin program of uniform corrosion on zirconium alloys. The objectives of these Round Robin corrosion tests are to generate new uniform corrosion weight gain date utilizing modern zirconium alloy products and to improve the International and ASTM standards. (author). 2 tabs., 7 appendix., 2 refs

Avaliação polissonográfica e de videoendoscopia da deglutição de pacientes portadores da sequência de Pierre-Robin Polysomnography evaluation and swallowing endoscopy of patients with Pierre Robin sequence

Directory of Open Access Journals (Sweden)

Carlos Diógenes Pinheiro Neto

2009-12-01

Full Text Available Asequência de Pierre Robin é caracterizada por micrognatia, glossoptose e obstrução das vias aéreas superiores. A gravidade dos sintomas é muito variável, o que torna o tratamento destes pacientes um desafio. OBJETIVOS: Identificar a presença de apneia-hipopneia obstrutiva do sono e avaliar a presença de alterações da deglutição em pacientes portadores da sequência de Pierre-Robin. MATERIAL E MÉTODOS: Estudo retrospectivo em que foram avaliadas 14 crianças com sequência de Pierre-Robin, sendo oito do sexo feminino. As crianças foram submetidas à videoendoscopia da deglutição e polissonografia. RESULTADO: Oito pacientes foram incluídos no estudo. Seis apresentaram polissonografia normal e apenas 1 paciente apresentou apneia-hipopneia leve de origem central. A videoendoscopia da deglutição mostrou-se normal em cinco pacientes e disfagia moderada foi detectada em três pacientes sendo submetidos à gastrostomia. A distração da mandíbula foi realizada em quatro pacientes que também foram submetidos à traqueostomia no mesmo tempo cirúrgico. CONCLUSÕES: Disfagia foi mais prevalente do que a apneia do sono. A videoendoscopia da deglutição mostrou ser um exame dinâmico e eficaz na detecção de distúrbios alimentares em pacientes com a sequência de Pierre Robin.The Pierre Robin sequence is characterized by micrognathia, glossoptosis and upper airway obstruction. Symptom severity varies, and this makes the treatment of these patients a true challenge. AIM: to identify the presence of sleep hypopneaapnea in patients with Pierre-Robin sequence. MATERIALS AND METHODS: retrospective study in which we assessed 14 children with Pierre-Robin sequence, eight girls. The children were submitted to swallowing video-endoscopy study and polysomnography. RESULTS: eight patients were included in this study. Six had normal polysomnography and only one patient had mild central hypopnea-apnea. Swallowing video-endoscopy was normal in

A Giant Heart Tumor in Neonate with Clinical Signs of Pierre - Robin Syndrome

OpenAIRE

Bejiqi, Ramush; Retkoceri, Ragip; Xhema-Bejiqi, Hana; Bejiqi, Rinor; Maloku, Arlinda

2017-01-01

Introduction: Pierre Robin syndrome is a congenital condition of facial abnormalities in humans. The three main features are: cleft palate, retrognathia and glossoptosis. Rarely heart tumors are associated with syndromes, mostly are isolated. Case report: In this presentation we describe a 3-weeks-old girl with Pierre-Robin syndrome and giant left ventricle tumor, diagnosed initially by transthoracic echocardiography. The purpose of this report is to review the literature on the fetuses and n...

Spectral distribution of scalar particles created by a moving boundary with Robin boundary condition

International Nuclear Information System (INIS)

Mintz, B.; Farina, C; Maia Neto, P.A.; Rodrigues, R.B.

2006-01-01

We consider a massless scalar field in 1+1 dimensions satisfying a Robin boundary condition (BC) at a non-relativistic boundary. By deriving a Bogoliubov transformation between the input and output bosonic field operators, we calculate the spectral distribution of created particles. The particular cases of Dirichlet and Neumann BC may be obtained from our result as limiting cases, yielding equal spectra (this result is valid only in this space-time dimensionality). The creation effect for the field under Dirichlet BC turns out to be an upper bound for the spectra derived for Robin BC. Also, we show that the particle creation phenomenon with Robin conditions can be considerably reduced (with respect to the Dirichlet or Neumann cases) by selecting a particular mechanical oscillation frequency of the moving boundary. (author)

Don Quixote, Machiavelli, and Robin Hood: public health practice, past and present.

Science.gov (United States)

Mullan, F

2000-05-01

Since the mid-19th century, when the first formal health departments were established in the United States, commissioners, directors, and secretaries of public health have functioned as senior members of the staffs of public executives, mayors, governors, and presidents. They have provided important political, managerial, and scientific leadership to agencies of government that have played increasingly important roles in national life, from the sanitary revolution of the 19th century to the prevention of HIV/AIDS and the control of tobacco use today. Although public health officials come from a variety of backgrounds and oversee agencies of varied size and composition, there are philosophical themes that describe and define the commonality of their work. These themes are captured metaphorically by 3 celebrated figures: Don Quixote, Machiavelli, and Robin Hood. By turns, the public health official functions as a determined idealist (Don Quixote), a cunning political strategist (Machiavelli), and an agent who redistributes resources from the wealthier sectors of society to the less well off (Robin Hood.) All 3 personae are important, but, it is argued, Robin Hood is the most endangered.

Piezosurgery an Asset in Treatment of Pierre Robin Sequence.

Science.gov (United States)

Singh, Divya; Gadre, Pushkar; Gadre, Kiran; Ramanojam, Shandilya

2017-03-01

Pierre Robin sequence (formerly a syndrome) is named after the French stomatologist who, in 1923 and 1934, described the problems associated with micrognathia in newborn. It comprises mandibular micrognathia, U-shaped cleft palate, and glossoptosis. The typical symptoms are hypoxaemia, noisy breathing, snoring, stridor, cyanosis, bradycardia, feeding difficulties, and failure to thrive. Distraction osteogenesis has recently been considered as a surgical option for early intervention to lengthen the mandible and relieve respiratory problems. Piezosurgery offers a modality to make precise bone cuts preserving vital structures, minimizing the invasiveness of the surgical procedure, and offering bloodless field. We present case of 1-year-old male malnourished child with Pierre Robin sequence and tracheostomy in situ since day 11 of his birth. The staged treatment plan involving mandibular lengthening in which mandibular osteotomies were performed with the piezoelectric scalpel followed by decannulation of tracheostomy, which has been described in detail in this article.

Sodium-glucose cotransporter 2 inhibition and health benefits: The Robin Hood effect.

Science.gov (United States)

Kalra, Sanjay; Jain, Arpit; Ved, Jignesh; Unnikrishnan, A G

2016-01-01

This review discusses two distinct, yet related, mechanisms of sodium-glucose cotransporter 2 (SGLT2) inhibition: Calorie restriction mimicry (CRM) and pro-ketogenic effect, which may explain their cardiovascular benefits. We term these adaptive CRM and pro-ketogenic effects of SGLT2 inhibition, the Robin Hood hypothesis. In English history, Robin Hood was a "good person," who stole from the rich and helped the poor. He supported redistribution of resources as he deemed fit for the common good. In a similar fashion, SGLT2 inhibition provides respite to the overloaded glucose metabolism while utilizing lipid stores for energy production.

Sodium-glucose cotransporter 2 inhibition and health benefits: The Robin Hood effect

Directory of Open Access Journals (Sweden)

Sanjay Kalra

2016-01-01

Full Text Available This review discusses two distinct, yet related, mechanisms of sodium-glucose cotransporter 2 (SGLT2 inhibition: Calorie restriction mimicry (CRM and pro-ketogenic effect, which may explain their cardiovascular benefits. We term these adaptive CRM and pro-ketogenic effects of SGLT2 inhibition, the Robin Hood hypothesis. In English history, Robin Hood was a "good person," who stole from the rich and helped the poor. He supported redistribution of resources as he deemed fit for the common good. In a similar fashion, SGLT2 inhibition provides respite to the overloaded glucose metabolism while utilizing lipid stores for energy production.

First results from negative ion beam extraction in ROBIN in surface mode

Science.gov (United States)

Pandya, Kaushal; Gahlaut, Agrajit; Yadav, Ratnakar K.; Bhuyan, Manas; Bandyopadhyay, Mainak; Das, B. K.; Bharathi, P.; Vupugalla, Mahesh; Parmar, K. G.; Tyagi, Himanshu; Patel, Kartik; Bhagora, Jignesh; Mistri, Hiren; Prajapati, Bhavesh; Pandey, Ravi; Chakraborty, Arun. K.

2017-08-01

ROBIN, the first step in the Indian R&D program on negative ion beams has reached an important milestone, with the production of negative ions in the surface conversion mode through Cesium (Cs) vapor injection into the source. In the present set-up, negative hydrogen ion beam extraction is effected through an extraction area of ˜73.38 cm2 (146 apertures of 8mm diameter). The three grid electrostatic accelerator system of ROBIN is fed by high voltage DC power supplies (Extraction Power Supply System: 11kV, 35A and Acceleration Power Supply System: 35kV, 15A). Though, a considerable reduction of co-extracted electron current is usually observed during surface mode operation, in order to increase the negative ion current, various other parameters such as plasma grid temperature, plasma grid bias, extraction to acceleration voltage ratio, impurity control and Cs recycling need to be optimized. In the present experiments, to control and to understand the impurity behavior, a Cryopump (14,000 l/s for Hydrogen) is installed along with a Residual Gas Analyzer (RGA). To characterize the source plasma, two sets of Langmuir probes are inserted through the diagnostic flange ports available at the extraction plane. To characterize the beam properties, thermal differential calorimeter, Doppler Shift Spectroscopy and electrical current measurements are implemented in ROBIN. In the present set up, all the negative ion beam extraction experiments have been performed by varying different experimental parameters e.g. RF power (30-70 kW), source operational pressure (0.3 - 0.6Pa), plasma grid bias voltage, extraction & acceleration voltage combination etc. The experiments in surface mode operation is resulted a reduction of co-extracted electron current having electron to ion ratio (e/i) ˜2 whereas the extracted negative ion current density was increased. However, further increase in negative ion current density is expected to be improved after a systematic optimization of the

Progress report on a NDT round robin on austenitic circumferential pipe welds

International Nuclear Information System (INIS)

Brast, G.; Maier, H.J.; Knoch, P.; Mletzko, U.

1998-01-01

The objective of the project is establish on the basis of Round Robin tests the current state of efficiency of various, defined testing methods, so that required or achievable optimizations can be defined and made. The project work up to date encompasses mon-destructive examinations of 15 austenitic welds with nominal widths DN 150/200/250 and wall thicknesses from 8 to 18 mm. Except for one test piece, (elbow/elbow), the joining welds are straight pipe to elbow welds. The results of the Round Robin tests show that the NDE detection limits for the fault examined (intercrystalline stress corrosion cracking) are in the range assumed so far, i.e. from about 20 to 25% of the wall thickness to be examined. The defect detection rates of the ultrasonic test methods applied are approx. 70% and thus are about equal in achievement with comparable international Round Robin tests (PISC; ASME/PDI, ENIQ, etc.). Clearly better are the fault detection rates of radiography. Evaluation of the individual results indicates the detection limits can be improved, by 1. reducing the misalignment of edges, 2. grinding of welds, 3. avoiding sharp notches at the root, 4. producing coaxial surfaces. (orig./CB) [de

Prevalence of filarioid nematodes and trypanosomes in American robins and house sparrows, Chicago USA.

Science.gov (United States)

Hamer, Gabriel L; Anderson, Tavis K; Berry, Garrett E; Makohon-Moore, Alvin P; Crafton, Jeffrey C; Brawn, Jeffrey D; Dolinski, Amanda C; Krebs, Bethany L; Ruiz, Marilyn O; Muzzall, Patrick M; Goldberg, Tony L; Walker, Edward D

2013-12-01

Hosts are commonly infected with a suite of parasites, and interactions among these parasites can affect the size, structure, and behavior of host-parasite communities. As an important step to understanding the significance of co-circulating parasites, we describe prevalence of co-circulating hemoparasites in two important avian amplification hosts for West Nile virus (WNV), the American robin (Turdus migratorius) and house sparrow (Passer domesticus), during the 2010-2011 in Chicago, Illinois, USA. Rates of nematode microfilariemia were 1.5% of the robins (n = 70) and 4.2% of the house sparrows (n = 72) collected during the day and 11.1% of the roosting robins (n = 63) and 0% of the house sparrows (n = 11) collected at night. Phylogenetic analysis of nucleotide sequences of the 18S rRNA and cytochrome oxidase subunit I (COI) genes from these parasites resolved two clades of filarioid nematodes. Microscopy revealed that 18.0% of American robins (n = 133) and 16.9% of house sparrows (n = 83) hosted trypanosomes in the blood. Phylogenetic analysis of nucleotide sequences from the 18s rRNA gene revealed that the trypanosomes fall within previously described avian trypanosome clades. These results document hemoparasites in the blood of WNV hosts in a center of endemic WNV transmission, suggesting a potential for direct or indirect interactions with the virus.

Security proof for round robin differential phase shift QKD

NARCIS (Netherlands)

Leermakers, D.; Skoric, B.

2017-01-01

We give the first information-theoretic security proof of the `Round Robin Differential Phase Shift' Quantum Key Distribution scheme. Our proof consists of the following steps. We construct an EPR variant of the scheme. We identify Eve's optimal way of coupling an ancilla to an EPR qudit pair under

A Giant Heart Tumor in Neonate with Clinical Signs of Pierre - Robin Syndrome

Science.gov (United States)

Bejiqi, Ramush; Retkoceri, Ragip; Xhema-Bejiqi, Hana; Bejiqi, Rinor; Maloku, Arlinda

2017-01-01

Introduction: Pierre Robin syndrome is a congenital condition of facial abnormalities in humans. The three main features are: cleft palate, retrognathia and glossoptosis. Rarely heart tumors are associated with syndromes, mostly are isolated. Case report: In this presentation we describe a 3-weeks-old girl with Pierre-Robin syndrome and giant left ventricle tumor, diagnosed initially by transthoracic echocardiography. The purpose of this report is to review the literature on the fetuses and neonates with cardiac tumors in an attempt to determine the various ways which cardiac tumors differ clinically and morphologically in this age group. PMID:28790548

Laryngeal mask airway guided tracheal intubation in a neonate with the Pierre Robin syndrome

DEFF Research Database (Denmark)

Hansen, Tom Giedsing; Joensen, Henning; Henneberg, Steen Winther

1995-01-01

Endotracheal intubation in infants with the Pierre Robin syndrome may sometimes be impossible to accomplish by conventional means. To aid difficult tracheal intubation many different techniques have been described. We present a case, in which we successfully intubated a small-for-date newborn boy...... with the Pierre Robin syndrome by using a modified laryngeal mask airway (no. 1) as a guide for the endotracheal tube. The technique is easy to perform, less traumatic and less time-consuming than multiple attempts at laryngoscopy or blind tracheal intubation....

Japanese round robin analysis for probabilistic fracture mechanics

International Nuclear Information System (INIS)

Yagawa, G.; Yoshimura, S.; Handa, N.

1991-01-01

Recently attention is focused on the probabilistic fracture mechanics, a branch of fracture mechanics with probability theory for a rational mean to assess the strength of components and structures. In particular, the probabilistic fracture mechanics is recognized as the powerful means for quantitative investigation of significance of factors and rational evaluation of life on problems involving a number of uncertainties, such as degradation of material strength, accuracy and frequency of inspection. Comparison with reference experiments are generally employed to assure the analytical accuracy. However, accuracy and reliability of analytical methods in the probabilistic fracture mechanics are hardly verified by experiments. Therefore, it is strongly needed to verify the probabilistic fracture mechanics through the round robin analysis. This paper describes results from the round robin analysis of flat plate with semi-elliptic cracks on the surface, conducted by the PFM Working Group of LE Subcommittee of the Japan Welding Society under the contract of the Japan Atomic Energy Research Institute and participated by Tokyo University, Yokohama National University, the Power Reactor and Nuclear Fuel Corporation, Tokyo Electric Power Co. Central Research Institute of Electric Power Industry, Toshiba Corporation, Kawasaki Heavy Industry Co. and Mitsubishi Heavy Industry Co. (author)

Prevalence of filarioid nematodes and trypanosomes in American robins and house sparrows, Chicago USA☆

Science.gov (United States)

Hamer, Gabriel L.; Anderson, Tavis K.; Berry, Garrett E.; Makohon-Moore, Alvin P.; Crafton, Jeffrey C.; Brawn, Jeffrey D.; Dolinski, Amanda C.; Krebs, Bethany L.; Ruiz, Marilyn O.; Muzzall, Patrick M.; Goldberg, Tony L.; Walker, Edward D.

2012-01-01

Hosts are commonly infected with a suite of parasites, and interactions among these parasites can affect the size, structure, and behavior of host–parasite communities. As an important step to understanding the significance of co-circulating parasites, we describe prevalence of co-circulating hemoparasites in two important avian amplification hosts for West Nile virus (WNV), the American robin (Turdus migratorius) and house sparrow (Passer domesticus), during the 2010–2011 in Chicago, Illinois, USA. Rates of nematode microfilariemia were 1.5% of the robins (n = 70) and 4.2% of the house sparrows (n = 72) collected during the day and 11.1% of the roosting robins (n = 63) and 0% of the house sparrows (n = 11) collected at night. Phylogenetic analysis of nucleotide sequences of the 18S rRNA and cytochrome oxidase subunit I (COI) genes from these parasites resolved two clades of filarioid nematodes. Microscopy revealed that 18.0% of American robins (n = 133) and 16.9% of house sparrows (n = 83) hosted trypanosomes in the blood. Phylogenetic analysis of nucleotide sequences from the 18s rRNA gene revealed that the trypanosomes fall within previously described avian trypanosome clades. These results document hemoparasites in the blood of WNV hosts in a center of endemic WNV transmission, suggesting a potential for direct or indirect interactions with the virus. PMID:24533314

Results of the LIRES Round Robin test on high temperature reference electrodes for LWR applications

Energy Technology Data Exchange (ETDEWEB)

Bosch, R.W. [SCK.CEN, Nuclear Research Centre Belgium, Boeretang 200, B-2400 Mol (Belgium); Nagy, G. [Magyar Tudomanyos Akademia KFKI Atomenergia Kutatointezet, AEKI, Konkoly Thege ut 29-33, 1121 Budapest (Hungary); Feron, D. [CEA Saclay, 91191 Gif-Sur-Yvette Cedex (France); Navas, M. [CIEMAT, Edificio 30, Dpto. Fision Nuclear, Avda. Complutense 22, 28040 Madrid, (Spain); Bogaerts, W. [KU Leuven, Kasteelpark Arenberg 31, B-3001 Leuven (Belgium); Karnik, D. [Nuclear Research Institute, NRI, Rez (Czech Republic); Dorsch, T. [Framatone ANP, Inc., Charlotte, North Carolina (United States); Molander, A. [Studsvik AB SE-611 82 Nykoeping (Sweden); Maekelae, K. [Materials and Structural Integrity, VTT Technical Research Centre of Finland, Kemistintie 3, P.O. Box 1704, FIN-02044 VTT (Finland)

2004-07-01

A European sponsored research project has been started on 1 October 2000 to develop high temperature reference electrodes that can be used for in-core electrochemical measurements in Light Water Reactors (LWR's). This LIRES-project (Development of Light Water Reactor Reference Electrodes) consists of 9 partners (SCK-CEN, AEKI, CEA, CIEMAT, KU Leuven, NRI Rez, Framatone ANP, Studsvik Nuclear and VTT) and will last for four years. The main objective of this LIRES project is to develop a reference electrode, which is robust enough to be used inside a LWR. Emphasize is put on the radiation hardness of both the mechanical design of the electrode as the proper functioning of the electrode. A four steps development trajectory is foreseen: (1) To set a testing standard for a Round Robin, (2) To develop different reference electrodes, (3) To perform a Round Robin test of these reference electrodes followed by selection of the best reference electrode(s), (4) To perform irradiation tests under appropriate LWR conditions in a Material Test Reactor (MTR). Four different high temperature reference electrodes have been developed and are being tested in a Round Robin test. These electrodes are: A Ceramic Membrane Electrode (CME), a Rhodium electrode, an external Ag/AgCl electrode and a Palladium electrode. The presentation will focus on the results obtained with the Round Robin test. (authors)

Análise de convergência espacial dos repasses da Lei Robin Hood Spatial convergence analysis of tax transfers from the Robin Hood Act

Directory of Open Access Journals (Sweden)

Noé Gonçalves Maranduba Júnior

2009-12-01

Full Text Available Alega-se que a Lei Robin Hood tem permitido uma melhor distribuição dos valores do ICMS devidos aos municípios do estado de Minas Gerais. O objetivo deste artigo é investigar se essa lei, entre os anos de 2001 e 2005, realmente foi eficaz, isto é, se, em termos relativos, municípios pobres receberam mais dessas transferências do que os municípios ricos. Para fazer isso metodologicamente, implementa-se uma análise exploratória de dados espaciais e uma análise de convergência, para verificar se as disparidades nos repasses diminuíram com o passar do tempo. Os resultados mostraram que os efeitos espaciais importaram nas análises e que não houve um efeito redistributivo dos repasses, considerando-se que o coeficiente indicador de convergência não foi significativo.One alleges that the Robin Hood Act has allowed one better distribution of the values of ICMS to municipalities of the state of Minas Gerais. The paper is aimed at verifying if the Robin Hood Act has actually revealed a redistributive effect in tax transfers to municipalities in the state over the period 2001-2005, that is, if, in relative terms, poor municipalities have received more these transfers than rich ones. In doing methodologically so, an exploratory spatial data analysis and a convergence analysis are implemented to verify if the disparities of tax redistribution have diminished over the time. The findings showed that the spatial effects were important in the analysis as well as there was no redistributive effect in the period because the convergence coefficient was not significant.

Bound states in waveguides with complex Robin boundary conditions

Czech Academy of Sciences Publication Activity Database

Novák, Radek

2016-01-01

Roč. 96, 3-4 (2016), s. 251-281 ISSN 0921-7134 R&D Projects: GA ČR(CZ) GA14-06818S Institutional support: RVO:61389005 Keywords : non-self-adjointness * waveguide * Robin boundary conditions * spectral analysis * essential spectrum * weak coupling * Birman-Schwinger principle * reality of the spectrum Subject RIV: BE - Theoretical Physics Impact factor: 0.933, year: 2016

Numerical simulation of turbulent flows past the RoBin helicopter with a four-bladed rotor

Energy Technology Data Exchange (ETDEWEB)

Xu, H.; Mamou, M.; Khalid, M. [National Research Council, Inst. for Aerospace Research, Ottawa, Ontario (Canada)]. E-mail: Hongyi.Xu@nrc.ca

2003-07-01

The current paper presents a turbulent flow simulation study past a generic helicopter RoBin with a four-bladed rotor using the Chimera moving grid approach. The aerodynamic performance of the rotor blades and their interactions with the RoBin fuselage are investigated using the k - {omega} SST turbulence model contained in the WIND code. The rotor is configured as a Chimera moving grid in a quasisteady flow field. The rotor blades are rectangular, untapered, linearly twisted and are made from NACA 0012 airfoil profile. The blade motion (rotation and cyclic pitching) schedule is specified in the NASA wind tunnel testing of a generic helicopter RoBin. The aerodynamic radial load distributions in the rotor plane are generated by integrating the pressure on each blade surfaces along the blade chordwise direction. The rotor flow interacts strongly with the flow coming off from the fuselage and thus has a significant impact on helicopter aerodynamic performance. (author)

Lq-solution of the Robin problem for the Oseen system

Czech Academy of Sciences Publication Activity Database

Medková, Dagmar

2016-01-01

Roč. 142, č. 1 (2016), s. 61-79 ISSN 0167-8019 Institutional support: RVO:67985840 Keywords : Oseen equations * Robin problem * single layer potential Subject RIV: BA - General Mathematics Impact factor: 0.702, year: 2016 http://link.springer.com/article/10.1007%2Fs10440-015-0014-5

Multi-Level Round-Robin Multicast Scheduling with Look-Ahead Mechanism

DEFF Research Database (Denmark)

Yu, Hao; Ruepp, Sarah Renée; Berger, Michael Stübert

2011-01-01

constructs the Traffic Matrix before each cell transmission based on the fan-out vectors of the cells in the queues. A scheduling pointer independently moves on each column of the Traffic Matrix in a round-robin fashion and returns the decision to the Decision Matrix. The sync procedure is carried out...

System upgradation for surface mode negative ion beam extraction experiments in ROBIN

International Nuclear Information System (INIS)

Pandya, Kaushal; Bansal, Gourab; Gahlaut, Agrajit; Soni, Jignesh; Yadav, Ratnakar K.; Mahesh, Vuppugalla; Tyagi, Himanshu; Parmar, KanuG.; Mistri, Hiren; Bhagora, Jighesh; Prajapati, Bhavesh; Patel, Kartik; Bhuyan, Manas; Gouswami, Mehul; Bandyopadhyay, Mainak; Chakraborty, Arun K.

2017-01-01

Operational commissioning of ROBIN forms an important milestone in the Indian programme on the R&D on negative ion beams. The commissioning activity has been effected in sequence, in synchronisation with the availability of High voltage Power Supply (HVPS) systems and routine operation has now been established in the cesiated, surface mode. Significant efforts have been placed in upgrading the system to initiate the surface mode operation. These include incorporation of a temperature controlled Cesium (Cs) delivery system, spectroscopic diagnostics for detection of Cs lines, installation of plasma grid heating and closed loop warm water circuit for source components heating and Doppler Shift Spectroscopy (DSS) system. The specific design and integration features for these upgrades are discussed and preliminary results obtained from the operation of ROBIN in the surface mode are presented.

System upgradation for surface mode negative ion beam extraction experiments in ROBIN

Energy Technology Data Exchange (ETDEWEB)

Pandya, Kaushal, E-mail: kpandya@ipr.res.in [Institute for Plasma Research, Near Indira Bridge, Bhat, Gandhinagar, 382428, Gujarat (India); Bansal, Gourab; Gahlaut, Agrajit; Soni, Jignesh [Institute for Plasma Research, Near Indira Bridge, Bhat, Gandhinagar, 382428, Gujarat (India); Yadav, Ratnakar K. [ITER-India, Institute for Plasma Research, Gandhinagar, Gujarat (India); Mahesh, Vuppugalla [Institute for Plasma Research, Near Indira Bridge, Bhat, Gandhinagar, 382428, Gujarat (India); Tyagi, Himanshu [ITER-India, Institute for Plasma Research, Gandhinagar, Gujarat (India); Parmar, KanuG.; Mistri, Hiren [Institute for Plasma Research, Near Indira Bridge, Bhat, Gandhinagar, 382428, Gujarat (India); Bhagora, Jighesh [ITER-India, Institute for Plasma Research, Gandhinagar, Gujarat (India); Prajapati, Bhavesh; Patel, Kartik [Institute for Plasma Research, Near Indira Bridge, Bhat, Gandhinagar, 382428, Gujarat (India); Bhuyan, Manas [ITER-India, Institute for Plasma Research, Gandhinagar, Gujarat (India); Gouswami, Mehul [Bhakti Management Services, Gandhinagar, 382007, Gujarat (India); Bandyopadhyay, Mainak [ITER-India, Institute for Plasma Research, Gandhinagar, Gujarat (India); Chakraborty, Arun K. [Institute for Plasma Research, Near Indira Bridge, Bhat, Gandhinagar, 382428, Gujarat (India)

2017-01-15

Operational commissioning of ROBIN forms an important milestone in the Indian programme on the R&D on negative ion beams. The commissioning activity has been effected in sequence, in synchronisation with the availability of High voltage Power Supply (HVPS) systems and routine operation has now been established in the cesiated, surface mode. Significant efforts have been placed in upgrading the system to initiate the surface mode operation. These include incorporation of a temperature controlled Cesium (Cs) delivery system, spectroscopic diagnostics for detection of Cs lines, installation of plasma grid heating and closed loop warm water circuit for source components heating and Doppler Shift Spectroscopy (DSS) system. The specific design and integration features for these upgrades are discussed and preliminary results obtained from the operation of ROBIN in the surface mode are presented.

Asymptotic eigenvalue estimates for a Robin problem with a large parameter

Czech Academy of Sciences Publication Activity Database

Exner, Pavel; Minakov, A.; Parnovski, L.

2014-01-01

Roč. 71, č. 2 (2014), s. 141-156 ISSN 0032-5155 R&D Projects: GA ČR(CZ) GA14-06818S Institutional support: RVO:61389005 Keywords : Laplacian * Robin problem * eigenvalue asymptotics Subject RIV: BE - Theoretical Physics Impact factor: 0.250, year: 2014

Preliminary results of the round-robin testing of F82H

Energy Technology Data Exchange (ETDEWEB)

Shiba, K.; Yamanouchi, N.; Tohyama, A.

1996-10-01

Preliminary results of metallurgical, physical and mechanical properties of low activation ferritic steel F82H (IEA heat) were obtained in the round-robin test in Japan. The properties of IEA heat F82H were almost the same as the original F82H.

On solving wave equations on fixed bounded intervals involving Robin boundary conditions with time-dependent coefficients

Science.gov (United States)

van Horssen, Wim T.; Wang, Yandong; Cao, Guohua

2018-06-01

In this paper, it is shown how characteristic coordinates, or equivalently how the well-known formula of d'Alembert, can be used to solve initial-boundary value problems for wave equations on fixed, bounded intervals involving Robin type of boundary conditions with time-dependent coefficients. A Robin boundary condition is a condition that specifies a linear combination of the dependent variable and its first order space-derivative on a boundary of the interval. Analytical methods, such as the method of separation of variables (SOV) or the Laplace transform method, are not applicable to those types of problems. The obtained analytical results by applying the proposed method, are in complete agreement with those obtained by using the numerical, finite difference method. For problems with time-independent coefficients in the Robin boundary condition(s), the results of the proposed method also completely agree with those as for instance obtained by the method of separation of variables, or by the finite difference method.

Fracture Toughness Round Robin Test International in pressure tube materials

International Nuclear Information System (INIS)

Villagarcia, M.P.; Liendo, M.F.

1993-01-01

Part of the pressure tubes surveillance program of CANDU type reactors is to determine the fracture toughness using a special fracture specimen and test procedure. Atomic Energy of Canada Limited decided to hold a Round Robin Test International and 9 laboratories participated worldwide in which several pressure tube materials were selected: Zircaloy-2, Zr-2.5%Nb cold worked and Zr-2.5%Nb heat treated. The small specimens used held back the thickness and curvature of the tube. J-R curves at room temperature were obtained and the crack extension values were determined by electrical potential drop techniques. These values were compared with results generated from other laboratories and a bid scatter was founded. It could be due to slight variations in the test method or inhomogeneity of the materials and a statistical study must be done to see if there is any pattern. The next step for the Round Robin Test would be to make some modifications in the test method in order to reduce the scatter. (Author)

The Robin, Erithacus Rubecula (Passeriformes, Turdidae, as a Component of Heterotrophic Consortia of Forest Cenoses, Northeast Ukraine. Part 2

Directory of Open Access Journals (Sweden)

Chaplygina A. B.

2016-12-01

Full Text Available The role of the robin as a determinant of heterotrophic consortia is considered. The robin is a consort of determinants of autotrophic consortia, which core is represented mostly by dominating species of deciduous trees (Quercus robur Linnaeus, 1753, Tilia cordata Miller, 1768, Acer platanoides Linnaeus, 1753, Acer campestre Linnaeus, 1753, and also by sedges (Carex sp. and grasses (Poaceae, connected with the determinants by fabric links. The robin also belongs to the concentr of the second and higher orders as a component of forest biogeocenoses and it is also the main determinant in species composition of the insects inhabiting bird nests. As a result of the taxonomic analysis of invertebrates in the robin nests, it has been found out that the most numerous class was Insecta (9 orders and 27 families, with the dominance of Coleoptera (30.7 %. The nidicolous fauna of the robin (38 species was dominated by zoophages along with parasites and hematophages such as Hippoboscidae (46.4 %. The percentage of phytophages and saprophages among the invertebrate nest inhabitants was somewhat less (21 % each, then followed necrophages (12 %. Zoophages and parasites also dominated according to the number of objects in the nests (42 %; n = 150, the less was the portion of phytophages (34 %, saprophages (18 %, and necrophages (6 %. The highest number of species and objects of zoophages was recorded for climax and mature biocenoses (oak forests in NNP “HL” and pine cenoses in NNP “H””.

A TXRF round robin study

International Nuclear Information System (INIS)

Roberts, R.F.; Holmes, R.J.; Florimonte, M.C. De

2000-01-01

Total reflection x-ray fluorescence spectroscopy (TXRF) is used extensively to measure the quantity of ultra trace metal contamination on wafer surfaces for manufacture monitoring, tool and material qualification and process development in the semiconductor industry. It has been noted, however, that issues with TXRF instrument calibration using reference wafers may lead to difficulty in comparison of TXRF areal density results from different laboratories. In order to cross-calibrate TXRF instruments within Lucent Technologies, a set of reference wafers was produced and characterized. The reference wafers were then measured, in round robin fashion, on various TXRF instruments, internal and external to Lucent Technologies, and the results compared. The results will be discussed as well as implications for instances where TXRF data from different facilities must be compared in a meaningful manner. (author)

Manipulating Tournaments in Cup and Round Robin Competitions

OpenAIRE

Russell, Tyrel; Walsh, Toby

2009-01-01

In sports competitions, teams can manipulate the result by, for instance, throwing games. We show that we can decide how to manipulate round robin and cup competitions, two of the most popular types of sporting competitions in polynomial time. In addition, we show that finding the minimal number of games that need to be thrown to manipulate the result can also be determined in polynomial time. Finally, we show that there are several different variations of standard cup competitions where mani...

Round Robin Posttest analysis of a 1/10-scale Steel Containment Vessel Model Test

International Nuclear Information System (INIS)

Komine, Kuniaki; Konno, Mutsuo

1999-01-01

NUPEC and U.S. Nuclear Regulatory Commission (USNRC) have been jointly sponsoring 'Structural Behavior Test' at Sandia National Laboratory (SNL) in Cooperative Containment Research Program'. As one of the test, a test of a mixed scaled SCV model with 1/10 in the geometry and 1/4 in the shell thickness. Round Robin analyses of a 1/10-scale Steel Containment Vessel (SCV) Model Test were carried out to obtain an adequate analytical method among seven organizations belonged to five countries in the world. As one of sponsor, Nuclear Power Engineering Corporation (NUPEC) filled the important role of a posttest analysis of SCV model. This paper describes NUPEC's analytical results in the round robin posttest analysis. (author)

Results of the round robin exercise on IV-measurements of classic Si-solar cells

Energy Technology Data Exchange (ETDEWEB)

Van der Borg, N.J.C.M. [ECN Solar Energy, Petten (Netherlands)

2012-12-15

A round robin exercise was performed on IV measurements and spectral response measurements of solar cells. Seven partners participated in the exercise. The aim of the round robin was to enable the verification of their measurement facilities and procedures for IV-measurements on 'classic' Si-solar cells by comparing their measurement data with the other participants. In this way possible flaws in the equipment or procedures can be found and corrected for or the measurement uncertainties can be reassessed. The differences between the measurement results of the various partners were more or less within the expected measurement uncertainty although one or more partners may decide to use the results to reexamine their facilities or procedures.

A comparison of the nesting success of mourning doves and American robins in conventionally managed and organic orchards

Science.gov (United States)

Fluetsch, K.M.

1992-01-01

A comparative study was undertaken to document more closely the effects of operational pesticide use on non-target avian species. Mourning Dove (Zenaida macroura) and American Robin (Turdus migratorius) nesting activity was monitored in three organic and three conventional orchards during two breeding seasons. Surveys were conducted to characterize the avian community within orchards under both management practices. Organophosphorus (OP) and carbamate pesticides, known to be extremely toxic to birds, were repeatedly sprayed during the peaks in dove and robin breeding activity. Spray card tests revealed that OP pesticides were deposited on 85.5% of the nests tested during routine spray operations. The threat of direct pesticide exposure to eggs, nestlings, and adult birds was considerable. Nest daily survival rates (DSRs) for both doves and robins, were significantly higher in the organic orchards than in the conventional orchards in 1991 and years combined (P < 0.05). Species diversity was significantly greater in the organic orchards (H = 2.43) than in the conventional orchards (H = 1.79). Results suggest that repeated applications of pesticides, within the conventional orchards, directly or indirectly, affected the reproductive success of doves and robins, as well as influenced species diversity within the treated orchards. Organic orchards appear to provide more favorable nesting and foraging habitat for birds than conventional orchards.

Kniest disease with Pierre Robin syndrome and hydrocephalus

International Nuclear Information System (INIS)

Silengo, M.C.; Davi, G.F.; Bianco, R.; DeMarco, A.; Franceschini, P.

1983-01-01

A 3-month-old male infant with clinical and radiological features of Kniest disease is reported. Additional findings were severe Pierre Robin syndrome and external hydrocephalus. The patient was retarded in mental and motor development. He died at 4 months of age from the complications of tracheostomy. The parents were both normal clinically and radiologically, thus the disease in the child was presumably due to a new mutation. The reported familial cases of Kniest disease suggest autosomal dominant inheritance. The differential diagnosis is discussed in detail. (orig.)

Bounds and extremal domains for Robin eigenvalues with negative boundary parameter

Czech Academy of Sciences Publication Activity Database

Antunes, P. R. S.; Freitas, P.; Krejčiřík, David

2017-01-01

Roč. 10, č. 4 (2017), s. 357-379 ISSN 1864-8258 R&D Projects: GA ČR(CZ) GA14-06818S Institutional support: RVO:61389005 Keywords : Eigenvalue optimisation * Robin Laplacian * negative boundary parameter * Bareket's conjecture Subject RIV: BA - General Mathematics OBOR OECD: Pure mathematics Impact factor: 1.182, year: 2016

Laboratory investigation of bitumen based on round robin DSC and AFM tests

NARCIS (Netherlands)

Soenen, H.; Besamusca, J.; Fischer, H.R.; Poulikakos, L.D.; Planche, J.P.; Das, P.K.; Kringos, N.; Grenfell, J.R.A.; Lu, X.; Chailleux, E.

2014-01-01

In the past years a wide discussion has been held among asphalt researchers regarding the existence and interpretation of observed microstructures on bitumen surfaces. To investigate this, the RILEM technical committee on nano bituminous materials 231-NBM has conducted a round robin study combining

Preparation of irritant polymer samples for an in vitro round robin study.

NARCIS (Netherlands)

Coleman, Kelly P; Grailer, Thomas P; McNamara, Lori R; Rollins, Beau L; Christiano, Nicholas J; Kandárová, Helena; De Jong, Wim H

2018-01-01

A round robin study using reconstructed human epidermis (RhE) tissues was conducted to test medical device polymer extracts for skin irritation potential. Test samples were four irritant and three non-irritant medical device polymers. Five of these polymer samples were developed and two were

Round Robin Posttest analysis of a 1/10-scale Steel Containment Vessel Model Test

Energy Technology Data Exchange (ETDEWEB)

Komine, Kuniaki [Nuclear Power Engineering Corp., Tokyo (Japan); Konno, Mutsuo

1999-07-01

NUPEC and U.S. Nuclear Regulatory Commission (USNRC) have been jointly sponsoring 'Structural Behavior Test' at Sandia National Laboratory (SNL) in Cooperative Containment Research Program'. As one of the test, a test of a mixed scaled SCV model with 1/10 in the geometry and 1/4 in the shell thickness. Round Robin analyses of a 1/10-scale Steel Containment Vessel (SCV) Model Test were carried out to obtain an adequate analytical method among seven organizations belonged to five countries in the world. As one of sponsor, Nuclear Power Engineering Corporation (NUPEC) filled the important role of a posttest analysis of SCV model. This paper describes NUPEC's analytical results in the round robin posttest analysis. (author)

Preliminary outcomes of the IUCR CPD round robin on quantitative phase analysis

International Nuclear Information System (INIS)

Madsen, I.

1999-01-01

Full text: The International Union for Crystallography - Commission on Powder Diffraction is currently sponsoring a round robin on quantitative phase analysis (QPA). The round robin is focusing on the analysis of powder diffraction data, namely laboratory X-ray, synchrotron X-ray and neutron diffraction data for the derivation of phase abundances. The general goals of the round robin include the following: 1. To document the methods and strategies commonly employed in quantitative phase analysis, especially those involving powder diffraction. 2. To assess (i) levels of accuracy and precision, and (ii) lower limits of detection of methods used in QPA. 3. To identify specific problem areas and develop practical solutions. 4. To formulate recommended procedures for QPA using diffraction data. 5. To create a standard set of samples for future reference. The samples used in the study consist of mixtures of major and minor components covering a wide range of analytical complexity. Initial samples are synthetic mixtures of crystallographically 'simple' materials and should present little problem to the analyst. Additional samples introduce problems such as preferred orientation, microabsorption and amorphous content to assess the degree to which these problems affect QPA. Several very complex materials have also been included in the sample suite including a natural granodiorite, synthetic bauxite and a mixture of pharmaceutical phases. These last three samples represent a significant analytical challenge as they exhibit preferred orientation, microabsorption and grain size effects in addition to severe peak overlap. The round robin was tailored to allow variation in the level of participation including (i) analysis of 'standard' data sets supplied by the CPD, (ii) collection and analysis of data from at least two of the samples supplied by the CPD and (iii) selection of additional samples at the discretion of the participant. At the time of writing this abstract, some 130

Evaluation of interlaboratory round robin study (2000-2003) in Japan

Energy Technology Data Exchange (ETDEWEB)

Shiozaki, T. [Japan Environmental Sanitation Center, Kawasaki, Kanagawa (Japan); Takasuga, T. [Shimadzu Techno Research (Japan); Iwaki, K. [Ebara Research (Japan); Mochizuki, T. [Kokan Keisoku (Japan); Miyazaki, T. [Nittech Research (Japan); Tanaka, K. [Toray Research Center (Japan)

2004-09-15

Inter-laboratory round robin is available for maintaining dioxin analytical quality/skills by testing or certified laboratories. There are over 150 dioxin testing laboratories available in Japan consequently, Ministry of Environment (MOE) and Ministry of Economy Trade and Industry (METI) have began to investigate quality of dioxin testing laboratory and to upgrade their skills with in 4 years. On the other hands, Research Group for Dioxin Analysis which have technical experts from 33 private dioxin testing laboratories had carried out inter-laboratory round robin 4 times since 1998. These studies has been transferred to new research group namely, Research Group on Ultra trace Analyses (UTA) which is accompanied organization of Japan Environmental Measurement and Chemical Analysis Association (JEMCA) in 2003. The UTA consists 83 private dioxin testing laboratories and has been subjected to grow up the technical potential for not only dioxins but other trace level analysis of well known persistent organic pollutants (POPs), endocrine disrupting chemicals (EDCs) and ubiquitous contaminants in the environment. Former research group had run final round (4{sup th}) and new UTA carried out first round studies in 2001 And 2003, respectively. Percentage relative standard deviations (RSD) for each polychlorinated dibenzo-pdioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and dioxin-like polychlorinated biphenyls (DL-PCBs) have become smaller than past studies.

Characterization of ASTM round-robin tungsten-powder samples

International Nuclear Information System (INIS)

Slettevold, C.A.; Biermann, A.H.

1975-01-01

The Lawrence Livermore Laboratory Particle Characterization Laboratory Group has participated in an industry-wide round-robin investigation on characterization of tungsten powder. sponsored by the ASTM Subcommittee on Refractory-Metal Powders (B-09.3). The analyses performed at the suggestion of the ASTM subcommittee included measurements of tap density, apparent density, true density, average particle size, and surface area. Determinations of particle-weight and size distributions were also performed and particle inspection conducted by microscopy. This report describes the equipment and procedures used and summarizes the results of these analyses. (9 tables, 17 fig) (U.S.)

ROUND-ROBIN ATOM-PROBE EXPERIMENT : PRELIMINARY RESULTS IN JAPAN

OpenAIRE

Nakamura , S.

1986-01-01

A round-robin experiment were to be carried out by 6 laboratories in Japan (Nishikawa ; Tokyo Inst. Tech., Sakurai and Igata ; Univ. of Tokyo, Ishikawa ; Hitachi, Tanino ; Nippon Steel Corp. and Nakamura ; Osaka Univ.) under the normal operating condition (T < l00 °K,. pulse fraction ~ 15% ~, P < 10-9 torr). Fe-Cr-Al and W-25%Re alloys, which are divided from a single wire were chosen as the specimen materials. A preliminary analysis of the W-Re alloy of the laboratory concerned show the good...

The Robin, Erithacus Rubecula (Passeriformes, Turdidae, As a Component of Autotrophic Consortia of Forest Cenoses, Northeast Ukraine

Directory of Open Access Journals (Sweden)

Chaplygina A. B.

2016-08-01

Full Text Available The role of the robin, Erithacus rubecula Linnaeus, 1758 as a consort of autotrophic consortia is considered. It has been found that representatives of 9 higher taxa of animals (Mammalia, Aves, Gastropoda, Insecta, Arachnida, Acarina, Malacostraca, Diplopoda, Clitellata have trophic and topical links with the robin. At the same time, the robin is a consort of determinants of autotrophic consortia, which core is represented mostly by dominating species of deciduous trees (Quercus robur Linnaeus, 1753 (24.6 %, Tilia cordata Miller, 1768 (17.5 %, Acer platanoides Linnaeus, 1753 (22.8 %, Acer campestre Linnaeus, 1753, and also by sedges (Carex sp. and grasses (Poaceae. The robin also belongs to the concentre of the second and higher orders as a component of forest biogeocenoses and forms a complex trophic system. In the diet of its nestlings, there have been found 717 objects from 32 invertebrate taxa, belonging to the phylums Arthropoda (99.2 %, 31 species and Annelida (0.8 %, 1 species. The phylum Arthropoda was represented by the most numerous class Insecta (76.9 %, in which 10 orders (Lepidoptera (46.8 % dominates and 20 families were recorded, and also by the classes Arachnida (15.0 %, Malacostraca (5.3 % and Diplopoda (1.9 %. The invertebrate species composition was dominated by representatives of a trophic group of zoophages (14 species; 43.8 %; the portion of phytophages (7 species; 21.9 %, saprophages (18.7 %, and necrophages (15.6 % was the less. The highest number of food items was represented by phytophages (N = 717; 51 %, followed by zoophages (34 %, saprophages (12 %, and necrophages (3 %. The difference among study areas according to the number of food items and the number of species in the robin nestling diet is shown. In NNP “HF”, the highest number of food items was represented by phytophages - 47 % (N = 443, whereas zoophages were the most species-rich group (43.3 %, 13 species. In NNP “H”, phytophages also prevailed in

Joining U.S. NRC international round robin for weld residual stress analysis. Stress analysis and validation in PWSCC mitigation program

International Nuclear Information System (INIS)

Maekawa, Akira; Serizawa, Hisashi; Murakawa, Hidekazu

2012-01-01

It is necessary to establish properly reliable weld residual stress analysis methods for accurate crack initiation and growth assessment of primary water stress corrosion cracking (PWSCC), which may occur in nickel-based dissimilar metal welds in pressurized water reactors. The U.S. Nuclear Regulatory Commission conducted an international round robin for weld residual stress analysis to improve stress analysis methods and to examine the uncertainties involved in the calculated stress values. In this paper, the results from the authors' participation in the round robin were reported. In the round robin, the weld residual stress in a nickel-based dissimilar metal weld of a pressurizer surge nozzle mock-up was computed under various analysis conditions. Based on these residual stress analysis results, a welding simulation code currently being developed that uses the iterative substructure method was validated and affecting factors on the analysis results were identified. (author)

First Total Reflection X-Ray Fluorescence round-robin test of water samples: Preliminary results

Energy Technology Data Exchange (ETDEWEB)

Borgese, Laura; Bilo, Fabjola [Chemistry for Technologies Laboratory, University of Brescia, Brescia (Italy); Tsuji, Kouichi [Graduate School of Engineering, Osaka City University, Osaka (Japan); Fernández-Ruiz, Ramón [Servicio Interdepartamental de Investigación (SIdI), Laboratorio de TXRF, Universidad Autónoma de Madrid, Madrid (Spain); Margui, Eva [Department of Chemistry, University of Girona, Girona (Spain); Streli, Christina [TU Wien, Atominstitut,Radiation Physics, Vienna (Austria); Pepponi, Giancarlo [Fondazione Bruno Kessler, Povo, Trento (Italy); Stosnach, Hagen [Bruker Nano GmbH, Berlin (Germany); Yamada, Takashi [Rigaku Corporation, Takatsuki, Osaka (Japan); Vandenabeele, Peter [Department of Archaeology, Ghent University, Ghent (Belgium); Maina, David M.; Gatari, Michael [Institute of Nuclear Science and Technology, University of Nairobi, Nairobi (Kenya); Shepherd, Keith D.; Towett, Erick K. [World Agroforestry Centre (ICRAF), Nairobi (Kenya); Bennun, Leonardo [Laboratorio de Física Aplicada, Departamento de Física, Universidad de Concepción (Chile); Custo, Graciela; Vasquez, Cristina [Gerencia Química, Laboratorio B025, Centro Atómico Constituyentes, San Martín (Argentina); Depero, Laura E., E-mail: laura.depero@unibs.it [Chemistry for Technologies Laboratory, University of Brescia, Brescia (Italy)

2014-11-01

Total Reflection X-Ray Fluorescence (TXRF) is a mature technique to evaluate quantitatively the elemental composition of liquid samples deposited on clean and well polished reflectors. In this paper the results of the first worldwide TXRF round-robin test of water samples, involving 18 laboratories in 10 countries are presented and discussed. The test was performed within the framework of the VAMAS project, interlaboratory comparison of TXRF spectroscopy for environmental analysis, whose aim is to develop guidelines and a standard methodology for biological and environmental analysis by means of the TXRF analytical technique. - Highlights: • The discussion of the first worldwide TXRF round-robin test of water samples (18 laboratories of 10 countries) is reported. • Drinking, waste, and desalinated water samples were tested. • Data dispersion sources were identified: sample concentration, preparation, fitting procedure, and quantification. • The protocol for TXRF analysis of drinking water is proposed.

Initiating round robins in the L2 classroom - preliminary observations

DEFF Research Database (Denmark)

Mortensen, Kristian; Hazel, Spencer

2011-01-01

Complementing recent interactional research on the contingent operation of online task accomplishment, this paper deals with a specific way of organizing and managing tasks in plenary L2 classrooms – namely the round robin. This may seem like a “traditional” and rigid form of classroom organizati...... and artefacts and graphic structures that are used not only as mediating tools in the (supposed) learning relevant activity, but also as structurally relevant features to organize the ongoing interaction, in which these activities emerge....

Using a classic paper by Robin Fahraeus and Torsten Lindqvist to teach basic hemorheology

DEFF Research Database (Denmark)

Toksvang, Linea Natalie; Berg, Ronan M G

2013-01-01

"The viscosity of the blood in narrow capillary tubes" by Robin Fåhraeus and Torsten Lindqvist (Am J Physiol 96: 562-568, 1931) can be a valuable opportunity for teaching basic hemorheological principles in undergraduate cardiovascular physiology. This classic paper demonstrates that a progressive...

Nudging Fledgling Teen Readers from the Nest: From Round Robin to Real Reading

Science.gov (United States)

Fair, Ginni Chase; Combs, Dorie

2011-01-01

Middle and Secondary teachers often find it difficult to help their students read textbooks and other instructional materials. In order to ensure they read the text, teachers may rely on "round robin reading" and other ineffective strategies. In this article, the authors explain why this strategy hinders comprehension, fluency and development of…

Round robin test programmes in the reliability of thick section ultrasonic inspections: state of the art report

International Nuclear Information System (INIS)

Watkins, B.

1987-03-01

Inspection reliability is firstly defined and it is shown how difficult it is to be assessed as the influence of such factors as human performance, equipment malfunction and intrinsic technique capability are difficult to quantify. The manufacture of round robin test specimens is then considered: types of flaw, fabrication of test samples. The results of various round robin test programmes that have been carried out to determine both the capability and reliability of NDE to detect and size flaws in steel section for thick sections directly relevant to the requirements of the nuclear industry, are then reviewed and discussed: US Pressure Vessel research committee programme, PISC I Programme, the defect detection trials, and PISC II Programme

Notch toughness variability in A542 steel used in the European Group on Fracture Jsub(1c) round robin programme

International Nuclear Information System (INIS)

Druce, S.G.

1983-04-01

The through thickness variability of toughness in a 2 1/4 Cr 1Mo steel plate used in the EGF Jsub(1c) round robin has been evaluated using the Charpy impact testing. The results indicate that the toughness properties at the mid thickness position are inferior to those +- 50 mm from this position and that a comparatively large degree of scatter is present at all depth locations. The relevance of these findings to the Jsub(1c) round robin assessment is briefly discussed. (author)

Pierre Robin sequence: case report, the relevance of autopsy

Directory of Open Access Journals (Sweden)

Cristiano C. Oliveira

2015-10-01

Full Text Available ABSTRACTPierre Robin sequence is a neonatal disorder characterized by micrognathism, glossoptosis and cleft palate. We reported an autopsy case of a child whose malformations of the oropharynx were identified only at birth. The child was extremely preterm with severe neonatal depression and poor recovery, and the orofacial alterations prevented the correct treatment. There was facial disorder characterized by micrognathia associated with cleft palate and posterior displacement of the tongue, compressing the vallecula, structurally compatible with glossoptosis. This autopsy surpassed the scientific and epidemiological relevance, allowing the family genetic counseling and close monitoring of a subsequent pregnancy.

Korean round-robin result for new international program to assess the reliability of emerging nondestructive techniques

Energy Technology Data Exchange (ETDEWEB)

Kim, Kyung Cho; Kim, Jin Gyum; Kang, Sung Sik; Jhung, Myung Jo [Korea Institute of Nuclear Safety, Daejeon (Korea, Republic of)

2017-04-15

The Korea Institute of Nuclear Safety, as a representative organization of Korea, in February 2012 participated in an international Program to Assess the Reliability of Emerging Nondestructive Techniques initiated by the U.S. Nuclear Regulatory Commission. The goal of the Program to Assess the Reliability of Emerging Nondestructive Techniques is to investigate the performance of emerging and prospective novel nondestructive techniques to find flaws in nickel-alloy welds and base materials. In this article, Korean round-robin test results were evaluated with respect to the test blocks and various nondestructive examination techniques. The test blocks were prepared to simulate large-bore dissimilar metal welds, small-bore dissimilar metal welds, and bottom-mounted instrumentation penetration welds in nuclear power plants. Also, lessons learned from the Korean round-robin test were summarized and discussed.

Results of the International Energy Agency Round Robin on Fast Pyrolysis Bio-oil Production

Energy Technology Data Exchange (ETDEWEB)

Elliott, Douglas C.; Meier, Dietrich; Oasmaa, Anja; van de Beld, Bert; Bridgwater, Anthony V.; Marklund, Magnus

2017-04-06

An international round robin study of the production of fast pyrolysis bio-oil was undertaken. Fifteen institutions in six countries contributed. Three biomass samples were distributed to the laboratories for processing in fast pyrolysis reactors. Samples of the bio-oil produced were transported to a central analytical laboratory for analysis. The round robin was focused on validating the pyrolysis community understanding of production of fast pyrolysis bio-oil by providing a common feedstock for bio-oil preparation. The round robin included: •distribution of 3 feedstock samples from a common source to each participating laboratory; •preparation of fast pyrolysis bio-oil in each laboratory with the 3 feedstocks provided; •return of the 3 bio-oil products (minimum 500 ml) with operational description to a central analytical laboratory for bio-oil property determination. The analyses of interest were: density, viscosity, dissolved water, filterable solids, CHN, S, trace element analysis, ash, total acid number, pyrolytic lignin, and accelerated aging of bio-oil. In addition, an effort was made to compare the bio-oil components to the products of analytical pyrolysis through GC/MS analysis. The results showed that clear differences can occur in fast pyrolysis bio-oil properties by applying different reactor technologies or configurations. The comparison to analytical pyrolysis method suggested that Py-GC/MS could serve as a rapid screening method for bio-oil composition when produced in fluid-bed reactors. Furthermore, hot vapor filtration generally resulted in the most favorable bio-oil product, with respect to water, solids, viscosity, and total acid number. These results can be helpful in understanding the variation in bio-oil production methods and their effects on bio-oil product composition.

Growth and prevalence of feeding difficulties in children with Robin sequence : a retrospective cohort study

NARCIS (Netherlands)

Paes, Emma C.; de Vries, Iris A C; Penris, Wouter M.; Hanny, Karlijn H.; Lavrijsen, Selma W.; van Leerdam, Elselien K.; Rademaker, Maaike M.; Veldhoen, Esther S.; Eijkemans, Rene M J C; Kon, Moshe; Breugem, Corstiaan C.

Objectives: In addition to breathing problems, patients with Robin sequence (RS) often encounter feeding difficulties (FD). Data regarding the occurrence of FD and possible influencing factors are scarce. The study aim was to elucidate these factors to improve treatment strategies. Material and

Results of ASTM round robin testing for mode 1 interlaminar fracture toughness of composite materials

Science.gov (United States)

Obrien, T. Kevin; Martin, Roderick H.

1992-01-01

The results are summarized of several interlaboratory 'round robin' test programs for measuring the mode 1 interlaminar fracture toughness of advanced fiber reinforced composite materials. Double Cantilever Beam (DCB) tests were conducted by participants in ASTM committee D30 on High Modulus Fibers and their Composites and by representatives of the European Group on Fracture (EGF) and the Japanese Industrial Standards Group (JIS). DCB tests were performed on three AS4 carbon fiber reinforced composite materials: AS4/3501-6 with a brittle epoxy matrix; AS4/BP907 with a tough epoxy matrix; and AS4/PEEK with a tough thermoplastic matrix. Difficulties encountered in manufacturing panels, as well as conducting the tests are discussed. Critical issues that developed during the course of the testing are highlighted. Results of the round robin testing used to determine the precision of the ASTM DCB test standard are summarized.

ROBIN, a Telepresence Robot to Support Older Users Monitoring and Social Inclusion: Development and Evaluation.

Science.gov (United States)

Cortellessa, Gabriella; Fracasso, Francesca; Sorrentino, Alessandra; Orlandini, Andrea; Bernardi, Giulio; Coraci, Luca; De Benedictis, Riccardo; Cesta, Amedeo

2018-02-01

This article describes an enhanced telepresence robot named ROBIN, part of a telecare system derived from the GIRAFFPLUS project for supporting and monitoring older adults at home. ROBIN is integrated in a sensor-rich environment that aims to continuously monitor physical and psychological wellbeing of older persons living alone. The caregivers (formal/informal) can communicate through it with their assisted persons. Long-term trials in real houses highlighted several user requirements that inspired improvements on the robotic platform. The enhanced telepresence robot was assessed by users to test its suitability to support social interaction and provide motivational feedback on health-related aspects. Twenty-five users (n = 25) assessed the new multimodal interaction capabilities and new communication services. A psychophysiological approach was adopted to investigate aspects like engagement, usability, and affective impact, as well as the possible role of individual differences on the quality of human-robot interaction. ROBIN was overall judged usable, the interaction with/through it resulted pleasant and the required workload was limited, thus supporting the idea of using it as a central component for remote assistance and social participation. Open-minded users tended to have a more positive interaction with it. This work describes an enabling technology for remote assistance and social communication. It highlights the importance of being compliant with users' needs to develop solutions easy to use and able to foster their social connections. The role of personality appeared to be relevant for the interaction, underscoring a clear role of the service personalization.

Round Robin/collaborative programme [cyclic crack growth in low alloy steel

International Nuclear Information System (INIS)

Jones, R.L.; Hurst, P.; Scott, P.M.

1989-01-01

During the 10 years of its existence International Cooperative Group on Cyclic Crack Growth the (ICCGR) has undertaken five collaborative efforts related to cyclic crack growth and stress corrosion susceptibility in reactor pressure vessel steels. The initial collaborative effort, a data reduction exercise, identified and reconciled several important procedural differences and led to confidence that, given the same crack length versus cycles data, the Group members could all derive similar plots of da/dN versus δK. Subsequently, a low-R testing round robin highlighted the importance of a number of comparatively subtle aspects of the methods used for cyclic crack growth testing in water environments and led to confidence that the various laboratories could generate similar test data, given the same test material and a sufficiently precise and detailed test specification. The results of a high-R test programme support the conclusion that the state of the art of cyclic crack growth testing has now advanced to a point at which coordinated, multilaboratory test programmes are feasible and indeed, such a programme covering the influence of temperature is currently under way. The slow strain rate round robin has highlighted important test variables, notably the electrochemical potential, which must be carefully controlled in assessing the conditions under which pressure vessel steels may suffer from stress corrosion cracking. (author)

Optimisation of the Lowest Robin Eigenvalue in the Exterior of a Compact Set

Czech Academy of Sciences Publication Activity Database

Krejčiřík, David; Lotoreichik, Vladimir

2018-01-01

Roč. 25, č. 1 (2018), s. 319-337 ISSN 0944-6532 R&D Projects: GA ČR GA17-01706S Institutional support: RVO:61389005 Keywords : Robin Laplacian * negative boundary parameter * exterior of a convex set * spectral isoperimetric inequality * spectral isochoric inequality * parallel coordinates Subject RIV: BA - General Mathematics OBOR OECD: Pure mathematics Impact factor: 0.496, year: 2016

Domestic round robin exercise on analysis of uranium for nuclear material handling facilities in Japan

International Nuclear Information System (INIS)

Kato, Yoshiyasu; Nagai, Kohta; Handa, Takamitsu; Inoue, Shin-ichi; Sato, Yoshihiro

2016-01-01

Interlaboratory comparison programme as well as internal quality control system is an effective tool for an analytical laboratory responsible to nuclear material accountancy of a nuclear facility to maintain and enhance its capability for analysis. However, it is a burden on nuclear material handling facilities in Japan to attend interlaboratory comparison programme run by overseas institutions because of high costs and complicated procedure for importing nuclear materials, and therefore facilities which can participate in such international programme would be limited. Nuclear Material Control Center has hence started and organised an annual domestic round robin exercise on analysis of uranium standard materials, funded by the Japan Safeguards Office of the Nuclear Regulation Authority, since 2008 to enhance analytical capability of Japanese Facilities. The outline of the round robin exercise will be given and the results of uranium isotopic and concentration analysis reported by participant facilities from 2008 to 2015 will be summarised in the presentation. (author)

Round Robin Test for Performance Demonstration System of Ultrasound Examination Personnel in Nuclear Power Plants

International Nuclear Information System (INIS)

Kim, Young Ho; Yang, Seung Han; Kim, Yong Sik; Yoon, Byung Sik; Lee, Hee Jong

2005-01-01

Ultrasound testing performance during in-service inspection for the main components of NPPs is strongly affected by each examination person. Therefore, ASME established a more strict qualification requirement in Sec. XI Appendix VIII for the ultrasound testing personnel in nuclear power plants. The Korean Performance Demonstration (KPD) System according to the ASME code for the ultrasonic testing personnel, equipments, and procedures to apply to the Class 1 and 2 piping ultrasound examination of nuclear power plants in Korea was established. And a round robin test was conducted in order to verify the effectiveness of PD method by comparing the examination results from the method of Performance Demonstration (PD) and a traditional ASME code dB-drop method. The round robin test shows that the reliability of the PD method is better than that of the dB-drop method. As a result, application of the PD method to the in-service inspection of the nuclear power plants will improve the performance of ultrasound testing

Evaluation of NDE Round-Robin Exercises Using the NRC Steam Generator Mockup at Argonne National Laboratory

International Nuclear Information System (INIS)

Muscara, Joseph; Kupperman, David S.; Bakhtiari, Sasab; Park, Jang-Yul; Shack, William J.

2002-01-01

This paper discusses round-robin exercises using the NRC steam generator (SG) mock-up at Argonne National Laboratory to assess inspection reliability. The purpose of the round robins was to assess the current reliability of SG tubing inservice inspection, determine the probability of detection (POD) as function of flaw size or severity, and assess the capability for sizing of flaws. For the round robin and subsequent evaluation completed in 2001, eleven teams participated. Bobbin and rotating coil mock-up data collected by qualified industry personnel were evaluated. The mock-up contains hundreds of cracks and simulations of artifacts such as corrosion deposits and tube support plates that make detection and characterization of cracks more difficult in operating steam generators than in most laboratory situations. An expert Task Group from industry, Argonne National Laboratory, and the NRC have reviewed the signals from the laboratory-grown cracks used in the mock-up to ensure that they provide reasonable simulations of those obtained in the field. The mock-up contains 400 tube openings. Each tube contains nine 22.2-mm (7/8-in.) diameter, 30.5-cm (1-ft) long, Alloy 600 test sections. The flaws are located in the tube sheet near the roll transition zone (RTZ), in the tube support plate (TSP), and in the free-span. The flaws are primarily intergranular stress corrosion cracks (axial and circumferential, ID and OD) though intergranular attack (IGA) wear and fatigue cracks are also present, as well as cracks in dents. In addition to the simulated tube sheet and TSP the mock-up has simulated sludge and magnetite deposits. A multiparameter eddy current algorithm, validated for mock-up flaws, provided a detailed isometric plot for every flaw and was used to establish the reference state of defects in the mock-up. The detection results for the 11 teams were used to develop POD curves as a function of maximum depth, voltage and the parameter m p, for the various types of

PENGUKURAN KINERJA ROUND-ROBIN SCHEDULER UNTUK LINUX VIRTUAL SERVER PADA KASUS WEB SERVER

Directory of Open Access Journals (Sweden)

Royyana Muslim Ijtihadie

2005-07-01

Full Text Available Normal 0 false false false IN X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Dengan meningkatnya perkembangan jumlah pengguna internet dan mulai diadopsinya penggunaan internet dalam kehidupan sehari-hari, maka lalulintas data di Internet telah meningkat secara signifikan. Sejalan dengan itu pula beban kerja server-server yang memberikan service di Internet juga mengalami kenaikan yang cukup signifikan. Hal tersebut dapat mengakibatkan suatu server mengalami kelebihan beban pada suatu saat. Untuk mengatasi hal tersebut maka diterapkan skema konfigurasi server cluster menggunakan konsep load balancing. Load balancing server menerapkan algoritma dalam melakukan pembagian tugas. Algoritma round robin telah digunakan pada Linux Virtual Server. Penelitian ini melakukan pengukuran kinerja terhadap Linux Virtual Server yang menggunakan algoritma round robin untuk melakukan penjadwalan pembagian beban terhadap server. Penelitian ini mengukur performa dari sisi client yang mencoba mengakses web server.performa yang diukur adalah jumlah request yang bisa diselesaikan perdetik (request per second, waktu untuk menyelesaikan per satu request, dan   throughput yang dihasilkan. Dari hasil percobaan didapatkan bahwa penggunaan LVS bisa meningkatkan performa, yaitu menaikkan jumlah request per detik

Statistically based reevaluation of PISC-II round robin test data

International Nuclear Information System (INIS)

Heasler, P.G.; Taylor, T.T.; Doctor, S.R.

1993-05-01

This report presents a re-analysis of an international PISC-II (Programme for Inspection of Steel Components, Phase 2) round-robin inspection results using formal statistical techniques to account for experimental error. The analysis examines US team performance vs. other participants performance,flaw sizing performance and errors associated with flaw sizing, factors influencing flaw detection probability, performance of all participants with respect to recently adopted ASME Section 11 flaw detection performance demonstration requirements, and develops conclusions concerning ultrasonic inspection capability. Inspection data were gathered on four heavy section steel components which included two plates and two nozzle configurations

$L^q$-solution of the Neumann, Robin and transmission problem for the scalar Oseen equation

Czech Academy of Sciences Publication Activity Database

Medková, Dagmar

2018-01-01

Roč. 291, č. 4 (2018), s. 682-698 ISSN 0025-584X R&D Projects: GA ČR GA16-03230S Institutional support: RVO:67985840 Keywords : generalized jump problem * Neumann problem * Robin problem Subject RIV: BA - General Mathematics OBOR OECD: Pure mathematics Impact factor: 0.742, year: 2016

Robins Air Force Base integrated resource assessment. Volume 3, Resource assessment

Energy Technology Data Exchange (ETDEWEB)

Sullivan, G.P.; Keller, J.M.; Stucky, D.J.; Wahlstrom, R.R.; Larson, L.L.

1993-10-01

The US Air Force Materiel Command (AFMC) has tasked the US Department of Energy (DOE) Federal Energy Management Program (FEMP), supported by the Pacific Northwest Laboratory (PNL), to identify, evaluate, and assist in acquiring all cost-effective energy projects at Robins Air Force Base (AFB). This is part of a model program that PNL is designing to support energy-use decisions in the federal sector. This report provides the results of the fossil fuel and electric energy resource opportunity (ERO) assessments performed by PNL at the AFMC Robins AFB facility located approximately 15 miles south of Macon, Georgia. It is a companion report to Volume 1, Executive Summary, and Volume 2, Baseline Detail. The results of the analyses of EROs are presented in 13 common energy end-use categories (e.g., boilers and furnaces, service hot water, and building lighting). A narrative-description of each ERO is provided, including information on the installed cost, energy and dollar savings; impacts on operation and maintenance (O&M); and, when applicable, a discussion of energy supply and demand, energy security, and environmental issues. A description of the evaluation methodologies and technical and cost assumptions is also provided for each ERO. Summary tables present the cost-effectiveness of energy end-use equipment before and after the implementation of each ERO and present the results of the life-cycle cost (LCC) analysis indicating the net present value (NPV) and savings to investment ratio (SIR) of each ERO.

Acoustic noise measurements on a wind turbine performed in the frame of the NIWT round robin

International Nuclear Information System (INIS)

Van der Borg, N.J.C.M.; Vink, P.W.

1996-11-01

A round robin acoustic measurement campaign has been performed by five project partners using one and the same wind turbine (WT). The measurement procedure for the round robin exercise was agreed to be in compliance with the IEA-recommended practices on WT-noise emission measurements and the measured characteristics were agreed to be the apparent sound power level and the tonality, both measured at the reference measurement position. The measurements performed by ECN resulted in an A-weighted sound power level of the TACKE TW500/37 wind turbine in Hooksiel, Germany, of 95.8 dB(A) at a wind speed of 5.5 m/s at reference conditions. The tonality assessment of the sound pressure at 50 m down wind of the turbine resulted in a difference between the maximum tone level and the masking noise level of 2.4 dB. This characterizes the noise as 'prominent'. 2 refs

Viewpoint held by the -Robin des bois- environment protection association regarding radioactive waste

International Nuclear Information System (INIS)

Bonnemains, J.

2011-01-01

For twenty years, the 'Robin des Bois' association has held the belief that every country must manage the hazardous waste, including radioactive waste, that it produces. The vehemence of German anti-nuclear activists in rejecting the return of waste produced by recycling irradiated fuel from German nuclear power plants runs counter to the principles of responsibility and proximity to which ecologists claim to adhere. There are more reasonable means available than refusing to manage end-of-cycle nuclear waste, such as blockading power plants or the uranium enrichment plant in Gronau which supplies the nuclear power industry worldwide. In Lower Saxony, the La Hague plant located on this West European headland is therefore thought of as the ideal hideaway for this waste. It is true that the list of radioactive scrap, hospital waste, asbestos from the steamer, the Norway, and WEEE exported by Germany is long. Robin des Bois is against recycling irradiated fuel as it facilitates the proliferation and dispersion of plutonium and other radionuclides into the environment. The association has revealed many scandals and lies related to recycling in areas other than the nuclear industry, which have been concealed behind the false good ecological and systematically positive image of recycling. (author)

Resonant alteration of propagation in guiding structures with complex Robin parameter and its magnetic-field-induced restoration

International Nuclear Information System (INIS)

Olendski, O.

2011-01-01

Highlights: → Solutions of the wave equation are analyzed for the confined circular geometry with complex Robin boundary conditions. → Sharp extremum is found in the energy dependence on the imaginary part of the extrapolation length. → Nonzero real part of the Robin length or/and magnetic field wipe out the resonance. - Abstract: Solutions of the scalar Helmholtz wave equation are derived for the analysis of the transport and thermodynamic properties of the two-dimensional disk and three-dimensional infinitely long straight wire in the external uniform longitudinal magnetic field B under the assumption that the Robin boundary condition contains extrapolation length Λ with nonzero imaginary part Λ i . As a result of this complexity, the self-adjointness of the Hamiltonian is lost, its eigenvalues E become complex too and the discrete bound states of the disk characteristic for the real Λ turn into the corresponding quasibound states with their lifetime defined by the eigenenergies imaginary parts E i . Accordingly, the longitudinal flux undergoes an alteration as it flows along the wire with its attenuation/amplification being E i -dependent too. It is shown that, for zero magnetic field, the component E i as a function of the Robin imaginary part exhibits a pronounced sharp extremum with its magnitude being the largest for the zero real part Λ r of the extrapolation length. Increasing magnitude of Λ r quenches the E i - Λ i resonance and at very large Λ r the eigenenergies E approach the asymptotic real values independent of Λ i . The extremum is also wiped out by the magnetic field when, for the large B, the energies tend to the Landau levels. Mathematical and physical interpretations of the obtained results are provided; in particular, it is shown that the finite lifetime of the disk quasibound states stems from the Λ i -induced currents flowing through the sample boundary. Possible experimental tests of the calculated effect are discussed; namely

Bioresorbable distraction device for the treatment of airway problems for infants with Robin sequence.

Science.gov (United States)

Breugem, Corstiaan; Paes, Emma; Kon, Moshe; Mink van der Molen, Aebele B; van der Molen, Aebele B Mink

2012-08-01

Pierre Robin sequence is a well known craniofacial entity. There are numerous ways to treat the respiratory insufficiency, but sometimes surgical intervention is needed. Tracheotomy could be associated with morbidity, and distraction osteogenesis has been established as a stable method to obtain a safe airway. Distraction osteogenesis has traditionally been performed with an external device. In this manuscript we describe the feasibility of an internal bioresorbable device. Retrospective descriptive study was performed in a tertiary academic children's hospital. After multidisciplinary team consultation, 12 consecutive patients with Robin sequence were treated with this internal distraction device. The mean age at surgery was 32 days, and the average amount of mandibular distraction was 18 mm. All patients were extubated after an average of 7.5 days after the surgery. The average length of stay in the hospital was 17 days after surgery. There were no major surgical complications. A tracheotomy was prevented in all our patients, and complications were limited. Long-term studies are needed to evaluate the influence that internal distraction has on the growth of the mandible and teeth. The internal distraction system seems safe for infants with micrognathia and has certain benefits when compared to the external distractor.

A round robin study of flexible large-area roll-to-roll processed polymer solar cell modules

DEFF Research Database (Denmark)

Krebs, Frederik C; Gevorgyan, Suren; Gholamkhass, Bobak

2009-01-01

A round robin for the performance of roll-to-roll coated flexible large-area polymer solar-cell modules involving 18 different laboratories in Northern America, Europe and Middle East is presented. The study involved the performance measurement of the devices at one location (Risø DTU) followed b...

SCK-CEN Contribution to the IAEA Round Robin Exercise on WWER-440 RPV Weld Material Irradiation, Annealing and Re-Embrittlement

International Nuclear Information System (INIS)

Van Walle, E.; Chaouadi, R.; Puzzolante, J.L.; Fabry, A.; Van de Velde, J.

1998-01-01

The contribution of the Belgian Nuclear Research Centre SCK-CEN to the IAEA Round Robin Exercise on WWER-440 RPV weld material is reported. The objective of this contribution is twofold: (1) to gain experience in the field of the testing of WWER-440 steels; (2) to analyse the round-robin data according to in-house developed on used models in order to check their validity and applicability. Results from testing on unirradiated material are reported including data obtained from chemical analysis, Charpy-V impact testing, tensile testing and fracture toughness determination. Finally, irradiation strategies that can be used in the program to obtain irradiated, irradiated-annealed and irradiated-annealed-reirradiated conditions are outlined

Comparison of experimental techniques for measuring fracture toughness of austenitic stainless steels by performance of a comparative round-robin test

International Nuclear Information System (INIS)

Huthmann, H.; Akhurst, K.N.; Bethmont, M.; Picker, C.; Rongen, H.J.M. van; Soulat, P.

1987-01-01

The CEC fast breeder coordinating committee, activities group 3 Materials of the working group for codes and standards, has recently examined existing data on the fracture toughness of austenitic stainless steels. As a result, the committee decided to sponsor a round robin test programme aimed at comparing experimental techniques and assisting in establishing a standard test method for these steels. The contract for this programme was placed with Interatom, who have subcontracted with CEA-Saclay, CEGB-Leatherhead, TNO-Apeldoorn and UKAEA-Risley. Additionally CISE/ENEL-Milano and EdF-Les Renardieres took part in the round robin. This final report presents a common evaluation and discussion of the results gained by the different laboratories

Multiple lines of evidence risk assessment of American robins exposed to polychlorinated dibenzofurans (PCDFS) and polychlorinated dibenzo-P-dioxins (PCDDS) in the Tittabawassee River floodplain, Midland, Michigan, USA.

Science.gov (United States)

Tazelaar, Dustin L; Fredricks, Timothy B; Seston, Rita M; Coefield, Sarah J; Bradley, Patrick W; Roark, Shaun A; Kay, Denise P; Newsted, John L; Giesy, John P; Bursian, Steven J; Zwiernik, Matthew J

2013-06-01

Concentrations of polychlorinated dibenzofurans (PCDFs) and polychlorinated dibenzo-p-dioxins (PCDDs) in Tittabawassee River floodplain soils and biota downstream of Midland, Michigan, USA, are greater than regional background concentrations. From 2005 to 2008, a multiple lines of evidence approach was utilized to evaluate the potential for effects of PCDD/DFs on American robins (Turdus migratorius) breeding in the floodplains. A dietary-based assessment indicated there was potential for adverse effects for American robins predicted to have the greatest exposures. Conversely, a tissue-based risk assessment based on site-specific PCDD/DF concentrations in American robin eggs indicated minimal potential for adverse effects. An assessment based on reproductive endpoints indicated that measures of hatch success in study areas were significantly less than those of reference areas. However, there was no dose-response relationship between that endpoint and concentrations of PCDD/DF. Although dietary-based exposure and reproductive endpoint assessments predicted potential for adverse effects to resident American robins, the tissue-based assessment indicates minimal to no potential for adverse effects, which is reinforced by the fact the response was not dose related. It is likely that the dietary assessment is overly conservative given the inherent uncertainties of estimating dietary exposure relative to direct tissue-based assessment measures. Based on the available data, it can be concluded that exposure to PCDD/DFs in the Tittabawassee River floodplain would not likely result in adverse population-level effects to American robins. Copyright © 2013 SETAC.

Multiple and sign-changing solutions for discrete Robin boundary value problem with parameter dependence

Directory of Open Access Journals (Sweden)

Long Yuhua

2017-12-01

Full Text Available In this paper, we study second-order nonlinear discrete Robin boundary value problem with parameter dependence. Applying invariant sets of descending flow and variational methods, we establish some new sufficient conditions on the existence of sign-changing solutions, positive solutions and negative solutions of the system when the parameter belongs to appropriate intervals. In addition, an example is given to illustrate our results.

Commentary: Wild psychometrics: Evidence for ‘general’ cognitive performance in wild New Zealand robins, Petroica longipes

OpenAIRE

Hackett, Paul M. W.

2017-01-01

A commentary on\\ud Wild psychometrics: Evidence for ‘general’ cognitive performance in wild New Zealand robins, Petroica longipes\\ud \\ud by Shaw, R. C., Boogert, N. J., Clayton, N. S., and Burns, K. C. (2015). Anim. Behav. 109, 101–111. doi: 10.1016/j.anbehav.2015.08.001

Characterisation of neutron irradiation damage in zirconium alloys - a 'Round Robin' experiment

International Nuclear Information System (INIS)

Kelly, P.M.; Blake, R.G.; Jostsons, A.

1977-01-01

The nature of the damage structure in the neutron-irradiated zirconium specimens supplied as part of an international 'Round Robin' experiment has been studied using transmission electron microscopy. The damage structure consists entirely of a/3 dislocation loops and no evidence has been found for c component loops. Both vacancy and interstitial loops were found in specimens where inside/outside contrast analysis was possible. Quantitative measurements of loop size distributions and loop concentrations are reported. All specimens exhibited corduroy contrast to varying degress. (author)

Calibration of straight TXRF analysis - results of an European Round Robin test

International Nuclear Information System (INIS)

Rink, I.; Wortelboer, R.; Gendt, S. de; Horn, M.; Steiner, J.; Neumann, C.; Knoth, J.; Schwenke, H.; Dobler, M.; Erdmann, V.; Rostam-Khani, P.; Kolbesen, B.O.; Metz, S.; Pahlke, S.; Fabry, L.; Gonchond, J.P.; Weiss, C.; Comin, F.

2000-01-01

Calibration of spot measurements pose in general less problems than calibration of straight TXRF measurements as several Round Robin tests show. This is at least matter of discussion for those TXRF users who apply a droplet standard for straight TXRF measurements at the angle of incident where particle and film-type contamination show the same fluorescence intensity - the so-called iso-angle. In order to gain more insight in the differences between several TXRF-equipment types and calibration methods we started an European Round Robin test in 1998 in which twelve firms participated using twenty different TXRF-tools, one RBS- and one Synchrotron-TXRF equipment. In contrast to earlier global Round Robin tests e.g. in 1996 (ISO/TC201/WG2) direct comparison of measurements of the same wafers is possible, because the same wafers were sent to several participants and additional reference measurements were performed at Philips as well. Wafer preparation has been performed by spin-coating of Ni (5 concentrations) and by dipping in Fe-spiked SCI-solution (1 blank, 2 spiking concentrations). From this eight sets were formed containing eight wafers with varying Ni-and Fe-concentrations. All wafers were firstly measured at Philips as reference and then sent to certain participant-groups. The results of this first measurement show that the sets were almost comparable to each other with a standard deviation of < 15 % for the variants Ni-3, Ni-4, Ni-5 and Fe-2, with exception of few single concentrations of some sets. After normalization it is possible to compare all results of these variants with one reference value. The results can be divided in three groups with similar results and one extreme outlier: group 1: RBS-results and those results based on correction with Fit-program from GKSS, calibration with spin-coated wafers (RBS, Radio tracer) and results of one XSA 8000 and of one Rigaku 3750; group 2: Results of all Atomika TXRF 8030, three Atomika TXRF 8010, one TREX630S

Learning Multirobot Hose Transportation and Deployment by Distributed Round-Robin Q-Learning.

Directory of Open Access Journals (Sweden)

Borja Fernandez-Gauna

Full Text Available Multi-Agent Reinforcement Learning (MARL algorithms face two main difficulties: the curse of dimensionality, and environment non-stationarity due to the independent learning processes carried out by the agents concurrently. In this paper we formalize and prove the convergence of a Distributed Round Robin Q-learning (D-RR-QL algorithm for cooperative systems. The computational complexity of this algorithm increases linearly with the number of agents. Moreover, it eliminates environment non sta tionarity by carrying a round-robin scheduling of the action selection and execution. That this learning scheme allows the implementation of Modular State-Action Vetoes (MSAV in cooperative multi-agent systems, which speeds up learning convergence in over-constrained systems by vetoing state-action pairs which lead to undesired termination states (UTS in the relevant state-action subspace. Each agent's local state-action value function learning is an independent process, including the MSAV policies. Coordination of locally optimal policies to obtain the global optimal joint policy is achieved by a greedy selection procedure using message passing. We show that D-RR-QL improves over state-of-the-art approaches, such as Distributed Q-Learning, Team Q-Learning and Coordinated Reinforcement Learning in a paradigmatic Linked Multi-Component Robotic System (L-MCRS control problem: the hose transportation task. L-MCRS are over-constrained systems with many UTS induced by the interaction of the passive linking element and the active mobile robots.

Round robin: Quantitative lateral resolution of PHI XPS microprobes Quantum 2000/Quantera SXM

International Nuclear Information System (INIS)

Scheithauer, Uwe; Kolb, Max; Kip, Gerard A.M.; Naburgh, Emile; Snijders, J.H.M.

2016-01-01

Highlights: • The quantitative lateral resolution of 7 PHI XPS microprobes has been estimated in a round robin. • An ellipsoidally shaped quartz crystal monochromatizes the Alkα radiation and refocuses it from the Al anode to the sample surface. • The long tail contributions of the X-ray beam intensity distribution were measured using a new and innovative approach. • This quantitative lateral resolution has a significantly larger value than the nominal X-ray beam diameter. • The quantitative lateral resolution follows a trend in time: The newer the monochromator so much the better the quantitative lateral resolution. - Abstract: The quantitative lateral resolution is a reliable measure for the quality of an XPS microprobe equipped with a focused X-ray beam. It describes the long tail contributions of the X-ray beam intensity distribution. The knowledge of these long tail contributions is essential when judging on the origin of signals of XPS spectra recorded on small-sized features. In this round robin test the quantitative lateral resolution of 7 PHI XPS microprobes has been estimated. As expected, the quantitative lateral resolution has significantly larger values than the nominal X-ray beam diameter. The estimated values of the quantitative lateral resolution follow a trend in time: the newer the monochromator of an XPS microprobe so much the better the quantitative lateral resolution.

Round robin: Quantitative lateral resolution of PHI XPS microprobes Quantum 2000/Quantera SXM

Energy Technology Data Exchange (ETDEWEB)

Scheithauer, Uwe, E-mail: scht.uhg@googlemail.com [82008 Unterhaching (Germany); Kolb, Max, E-mail: max.kolb@airbus.com [Airbus Group Innovations, TX2, 81663 Munich (Germany); Kip, Gerard A.M., E-mail: G.A.M.Kip@utwente.nl [Universiteit Twente, MESA+ Nanolab, Postbus 217, 7500AE Enschede (Netherlands); Naburgh, Emile, E-mail: e.p.naburgh@philips.com [Materials Analysis, Philips Innovation Services, High Tech Campus 11, 5656 AE Eindhoven (Netherlands); Snijders, J.H.M., E-mail: j.h.m.snijders@philips.com [Materials Analysis, Philips Innovation Services, High Tech Campus 11, 5656 AE Eindhoven (Netherlands)

2016-07-15

Highlights: • The quantitative lateral resolution of 7 PHI XPS microprobes has been estimated in a round robin. • An ellipsoidally shaped quartz crystal monochromatizes the Alkα radiation and refocuses it from the Al anode to the sample surface. • The long tail contributions of the X-ray beam intensity distribution were measured using a new and innovative approach. • This quantitative lateral resolution has a significantly larger value than the nominal X-ray beam diameter. • The quantitative lateral resolution follows a trend in time: The newer the monochromator so much the better the quantitative lateral resolution. - Abstract: The quantitative lateral resolution is a reliable measure for the quality of an XPS microprobe equipped with a focused X-ray beam. It describes the long tail contributions of the X-ray beam intensity distribution. The knowledge of these long tail contributions is essential when judging on the origin of signals of XPS spectra recorded on small-sized features. In this round robin test the quantitative lateral resolution of 7 PHI XPS microprobes has been estimated. As expected, the quantitative lateral resolution has significantly larger values than the nominal X-ray beam diameter. The estimated values of the quantitative lateral resolution follow a trend in time: the newer the monochromator of an XPS microprobe so much the better the quantitative lateral resolution.

Plasma cholinesterase inhibition in the clay-colored robin (Turdus grayi) exposed to diazinon in maradol papaya crops in Yucatan, Mexico

Science.gov (United States)

Cobos, V.M.; Mora, M.A.; Escalona, G.

2006-01-01

The use of organophosphorous pesticides in agriculture can result in intoxication of birds foraging in sprayed crops. Effects on birds resulting from pesticide intoxication are varied and include behavioral and reproductive effects, including death. One widely used insecticide in Maradol papaya crops is diazinon which has been associated with various incidents of intoxication and death of wild birds. The objective of this study was to evaluate the impact of diazinon application to papaya crops on plasma cholinesterase activity of the clay-colored robin (Turdus grayi). We captured clay-colored robins foraging in a papaya crop the following day after the field had been sprayed with diazinon at a dose of 1.5 kg/ha during March and May, respectively. We took a blood sample from the brachialis vein of the birds captured and measured plasma enzymatic activity. The plasma samples from birds used as controls were taken during the same time period and were analyzed in a similar way. Enzymatic activity of males was greater than that of females (53,52%) and mean cholinesterase inhibition was 49.43%. Cholinesterase inhibition was greater during May than in March probably due to more continuous exposure and ingestion of the insecticide through food and possible absorption through the skin. This degree of enzymatic inhibition is possibly affecting the behavior of the clay-colored robin and could result in death in severe cases.

Round-Robin Studies on Roll-Processed ITO-free Organic Tandem Solar Cells Combined with Inter-Laboratory Stability Studies

DEFF Research Database (Denmark)

Livi, Francesco; Søndergaard, Roar R.; Andersen, Thomas Rieks

2015-01-01

Roll-processed, indium tin oxide (ITO)-free, flexible, organic tandem solar cells and modules have been realized and used in round-robin studies as well as in parallel inter-laboratory stability studies. The tandem cells/modules show no significant difference in comparison to their single...

Riding on the Back of a Giant: Adding Malta to the "5 Cultures" Study by Robin Alexander

Science.gov (United States)

Peresso, Randolph

2017-01-01

This paper focuses on the methodology adopted for Malta+5, which builds on Robin Alexander's work by comparing the five pedagogical cultures he studied to the one in Malta. It reflects critically on the research process adopted in this study, and shows how, despite the very limited experience and resources, applying the methodology, frameworks and…

Características acústicas da oclusiva glotal associada à sequência de Pierre Robin: estudo de caso Acoustic characteristics of glottal stop associated to Pierre Robin Sequence: case study

Directory of Open Access Journals (Sweden)

Viviane Cristina de Castro Marino

2013-04-01

Full Text Available A fissura de palato, em associação à Sequência de Pierre Robin, pode favorecer o desenvolvimento de produções atípicas (compensatórias, na fala da criança, como é o caso da oclusiva glotal (golpe de glote comumente observada em substituição aos sons oclusivos (vozeados ou não. No presente estudo, foi realizada a análise dos parâmetros fonético-acústicos da oclusiva glotal produzidas em /k/ e /g/ por uma criança do gênero feminino, com 5 anos, que apresentava fissura de palato reparada, associada à Sequência de Pierre Robin. Para isso, foram selecionadas seis palavras em que a oclusiva velar encontrava-se na posição inicial da palavra e combinada com as vogais /a/, /i/ e /u/ na posição acentuada. Foi ainda realizado julgamento perceptivo-auditivo por três fonoaudiólogos, que apresentou concordância quanto à presença da oclusiva glotal de 100% para ambas as relações (intra e inter-juízes. Na inspeção dos dados via espectrograma foi observada variabilidade dos parâmetros espectrais (burst e transição formântica e essas variações também puderam ser computadas considerando as vogais separadamente. A análise estatística revelou diferença estatisticamente significante entre as duas consoantes velares (/k/ e /g/ nos parâmetros espectral (burst, temporal (VOT e duração relativa da oclusiva na palavra e os relativos às características acústicas das vogais adjacentes às oclusivas (período estacionário de F3. Por fim, as características acústicas da oclusiva glotal sugeriram que a criança pode ter utilizado de estratégias para marcar contrastes fônicos na língua, ainda que os mesmos não tenham magnitude suficiente para serem resgatados auditivamente pelo ouvinte.The cleft palate, in association with Pierre Robin Sequence, may foster the development of atypical (compensatory productions on the child’s speech such as the use of glottal stop as a substitution for occlusive sounds (voiced or

Características acústicas da oclusiva glotal associada à sequência de Pierre Robin: estudo de caso Acoustic characteristics of glottal stop associated to Pierre Robin Sequence: case study

Directory of Open Access Journals (Sweden)

Viviane Cristina de Castro Marino

2012-01-01

Full Text Available A fissura de palato, em associação à Sequência de Pierre Robin, pode favorecer o desenvolvimento de produções atípicas (compensatórias, na fala da criança, como é o caso da oclusiva glotal (golpe de glote comumente observada em substituição aos sons oclusivos (vozeados ou não. No presente estudo, foi realizada a análise dos parâmetros fonético-acústicos da oclusiva glotal produzidas em /k/ e /g/ por uma criança do gênero feminino, com 5 anos, que apresentava fissura de palato reparada, associada à Sequência de Pierre Robin. Para isso, foram selecionadas seis palavras em que a oclusiva velar encontrava-se na posição inicial da palavra e combinada com as vogais /a/, /i/ e /u/ na posição acentuada. Foi ainda realizado julgamento perceptivo-auditivo por três fonoaudiólogos, que apresentou concordância quanto à presença da oclusiva glotal de 100% para ambas as relações (intra e inter-juízes. Na inspeção dos dados via espectrograma foi observada variabilidade dos parâmetros espectrais (burst e transição formântica e essas variações também puderam ser computadas considerando as vogais separadamente. A análise estatística revelou diferença estatisticamente significante entre as duas consoantes velares (/k/ e /g/ nos parâmetros espectral (burst, temporal (VOT e duração relativa da oclusiva na palavra e os relativos às características acústicas das vogais adjacentes às oclusivas (período estacionário de F3. Por fim, as características acústicas da oclusiva glotal sugeriram que a criança pode ter utilizado de estratégias para marcar contrastes fônicos na língua, ainda que os mesmos não tenham magnitude suficiente para serem resgatados auditivamente pelo ouvinte.The cleft palate, in association with Pierre Robin Sequence, may foster the development of atypical (compensatory productions on the child’s speech such as the use of glottal stop as a substitution for occlusive sounds (voiced or

ROBIN: a platform for evaluating automatic target recognition algorithms: I. Overview of the project and presentation of the SAGEM DS competition

Science.gov (United States)

Duclos, D.; Lonnoy, J.; Guillerm, Q.; Jurie, F.; Herbin, S.; D'Angelo, E.

2008-04-01

The last five years have seen a renewal of Automatic Target Recognition applications, mainly because of the latest advances in machine learning techniques. In this context, large collections of image datasets are essential for training algorithms as well as for their evaluation. Indeed, the recent proliferation of recognition algorithms, generally applied to slightly different problems, make their comparisons through clean evaluation campaigns necessary. The ROBIN project tries to fulfil these two needs by putting unclassified datasets, ground truths, competitions and metrics for the evaluation of ATR algorithms at the disposition of the scientific community. The scope of this project includes single and multi-class generic target detection and generic target recognition, in military and security contexts. From our knowledge, it is the first time that a database of this importance (several hundred thousands of visible and infrared hand annotated images) has been publicly released. Funded by the French Ministry of Defence (DGA) and by the French Ministry of Research, ROBIN is one of the ten Techno-vision projects. Techno-vision is a large and ambitious government initiative for building evaluation means for computer vision technologies, for various application contexts. ROBIN's consortium includes major companies and research centres involved in Computer Vision R&D in the field of defence: Bertin Technologies, CNES, ECA, DGA, EADS, INRIA, ONERA, MBDA, SAGEM, THALES. This paper, which first gives an overview of the whole project, is focused on one of ROBIN's key competitions, the SAGEM Defence Security database. This dataset contains more than eight hundred ground and aerial infrared images of six different vehicles in cluttered scenes including distracters. Two different sets of data are available for each target. The first set includes different views of each vehicle at close range in a "simple" background, and can be used to train algorithms. The second set

An XPS round robin investigation on analysis of wood pulp fibres and filter paper

Science.gov (United States)

Johansson, Leena-Sisko; Campbell, J. M.; Fardim, Pedro; Hultén, Anette Heijnesson; Boisvert, Jean-Philippe; Ernstsson, Marie

2005-06-01

X-ray photoelectron spectroscopy (XPS) has been applied to pulp and paper research for decades. However, there has been no attempt to standardise or even systematically compare experimental and analysis procedures, even though it is known that fibrous, nature-derived and insulating fibre materials pose remarkable challenges to reliable surface analysis. The experimental problems are mainly linked with neutralisation, energy resolution, contamination and X-ray induced degradation. We have tested applicability, reliability and reproducibility of XPS analysis on real pulp samples with varying lignin and extractives contents in a small round robin investigation. We also tested the instrumental set-ups with an acetone-extracted filter paper, used as a reference sample. The data, collected at four different laboratories with state-of-the-art instruments indicate that reproducible results can be obtained, despite minor differences in experimental and analysis procedures. However, we found that a specified sample handling procedure and limited X-ray exposure are crucial for reproducible, reliable data. Based on the round robin data we recommend dose restricted monochromatic measurements, a cellulosic in situ reference and a consistent sample handling procedure. The data confirms that a paper-based reference material and the correlation of high-resolution C 1s data with O/C atomic ratios can be used in testing instruments and experimental set-ups for pulp and paper materials.

Fingerprinting analysis of oil samples for inter-laboratory Round Robin, 2007

Energy Technology Data Exchange (ETDEWEB)

Yang, C.; Wang, Z.; Hollebone, B.; Brown, C.E.; Landriault, M. [Environment Canada, Ottawa, ON (Canada). Emergencies Science and Technology Division, Science and Technology Branch, Environmental Science and Technology Centre; Shang, D. [Environment Canada, North Vancouver, BC (Canada). Pacific Environmental Science Centre; Losier, R.; Cook, A. [Environment Canada, Moncton, NB (Canada). Environmental Science Centre

2008-07-01

The oil from an oil spill must undergo a complete chemical characterization in order to determine the source of the oil, to distinguish the spilled oil from background hydrocarbons and to evaluate the extent of impact. A study was conducted to determine the ability of international analytical laboratories to independently conduct forensic oil analysis and identification. A Round Robin study was conducted in which advanced chemical fingerprinting and data interpretation techniques were used to differentiate the types and sources of spilled oils. The participants of the Round Robin exercise were the Institute of Inland Water Management and Waste Water Treatment (RIZA) in the Netherlands and the Federal Maritime and Hydrographic Agency (BSH) in Germany. In May 2007, 6 oil samples were distributed to the participants. In the artificial oil spill scenario, 2 oil samples were considered as candidate sources and the other 4 samples were labeled as spilled oils. No other information about these oils was provided before submission of final results. Chemical fingerprinting was carried out using gas chromatography, flame ionization detection and mass spectrometry along with statistical data to determine the source of the spill. N-alkanes, alkylated polyaromatic hydrocarbons, biomarker terpanes and steranes and triaromatic steranes were normalized to C{sub 30} 17{alpha}(H)21{beta}(H)-hopane and then semi-quantitated. Thirty diagnostic ratios of target compounds were calculated from their peak heights and areas at selected ions. Results of the 2 source samples were compared with 4 spill samples. Tiered fingerprinting analysis revealed that source oil 1 was a non-match with spill samples 3 and 4, but a probable match with spill samples 5 and 6. Source sample 2 did not match any of the 4 spilled oils. A lack of background information essential to oil spill identification made it impossible to draw an unambiguous conclusion. 14 refs., 4 tabs., 6 figs.

Fingerprinting analysis of oil samples for inter-laboratory Round Robin, 2007

International Nuclear Information System (INIS)

Yang, C.; Wang, Z.; Hollebone, B.; Brown, C.E.; Landriault, M.; Shang, D.; Losier, R.; Cook, A.

2008-01-01

The oil from an oil spill must undergo a complete chemical characterization in order to determine the source of the oil, to distinguish the spilled oil from background hydrocarbons and to evaluate the extent of impact. A study was conducted to determine the ability of international analytical laboratories to independently conduct forensic oil analysis and identification. A Round Robin study was conducted in which advanced chemical fingerprinting and data interpretation techniques were used to differentiate the types and sources of spilled oils. The participants of the Round Robin exercise were the Institute of Inland Water Management and Waste Water Treatment (RIZA) in the Netherlands and the Federal Maritime and Hydrographic Agency (BSH) in Germany. In May 2007, 6 oil samples were distributed to the participants. In the artificial oil spill scenario, 2 oil samples were considered as candidate sources and the other 4 samples were labeled as spilled oils. No other information about these oils was provided before submission of final results. Chemical fingerprinting was carried out using gas chromatography, flame ionization detection and mass spectrometry along with statistical data to determine the source of the spill. N-alkanes, alkylated polyaromatic hydrocarbons, biomarker terpanes and steranes and triaromatic steranes were normalized to C 30 17α(H)21β(H)-hopane and then semi-quantitated. Thirty diagnostic ratios of target compounds were calculated from their peak heights and areas at selected ions. Results of the 2 source samples were compared with 4 spill samples. Tiered fingerprinting analysis revealed that source oil 1 was a non-match with spill samples 3 and 4, but a probable match with spill samples 5 and 6. Source sample 2 did not match any of the 4 spilled oils. A lack of background information essential to oil spill identification made it impossible to draw an unambiguous conclusion. 14 refs., 4 tabs., 6 figs

Results of eddy current test for second round robin by Halden reactor project

International Nuclear Information System (INIS)

Iwai, Takashi; Souzawa, Shizuo; Miyata, Seiichi; Sakai, Haruyuki; Sakakura, Atsushi

1986-08-01

JMTR Hot Laboratory has executed the eddy current test of two PWR type zircaloy cladding tubes for the second round robin by Halden Reactor Project. Defects manufactured on the test specimen were revealed on a fair way to success as a function of local position, phase character and size. Influence of the fatigue crack between the two different tubes was studied through the phase angle analysis. More effort should be needed for detecting rather smaller internal defect when it was combined with external and other various type of defects. (author)

Round robin test for zirconium alloys in 400 deg C steam: results from EDF; Essais interlaboratoires de corrosion generalisee en milieu vapeur a 400 deg C d`alliages de zirconium: resultats d`EDF

Energy Technology Data Exchange (ETDEWEB)

Blat, M.

1994-01-01

The EDF Material Studies Branch has participated in the Round Robin program of uniform corrosion on zirconium alloys. The objectives of these Round Robin corrosion tests are to generate new uniform corrosion weight gain date utilizing modern zirconium alloy products and to improve the International and ASTM standards. (author). 2 tabs., 7 appendix., 2 refs.

Environmental Assessment for Developing Renewable Energy Enhanced Use Lease Facilities at Robins Air Force Base

Science.gov (United States)

2013-12-15

geothermal sources were eliminated because of insufficient sources of energy. Wind power using turbines was eliminated because the average wind speed in...Warner Robins, Georgia is 8 kph (5 mph), and wind turbines are typically not cost-effective in areas with average wind speeds below 12.9-16.1 kph (8...20  Table 3-2. Bird Species of Pine and Pine/Mixed Hardwood Habitats ...................... 31  Table 3-3. Archaeological Sites

Testing round robin on cyclic crack growth of low and medium sulfur A533-B steels in LWR environments

International Nuclear Information System (INIS)

Kitagawa, H.; Komai, K.; Nakajima, H.; Higuchi, M.

1987-01-01

After the facts of environmentally assisted crack growth of low alloy steel was first observed when cyclically loaded in high temperature water. The subject has been extensively studied in connection with the evaluation of the integrity of LWR pressure boundary materials. In 1977, International Cooperative Group on Cyclic Crack Growth Rate Testing Evaluation (the ICCGR group) was organized for more systematic and effective solution of the problem. Successful results have been reported on the programs of the ICCGR activity, particularly in the promotion of a couple of programs of testing round robin and the associated research. JAERI also organized a domestic group of 15 organizations as the Corrosion Fatigue Subcommittee(JCF) of the LWR Safety Research Committee to carry out the similar test program. The group has been evaluating the behavior of steels representing the range of quality for the existing Japanese LWR plants. This paper describes the present status of the Japanese domestic testing round robin and related research especially focused on the test methodology

Data development for ASTM E24.06.02 round robin program on instability prediction

Science.gov (United States)

Mccabe, D. E.

1979-01-01

Basis data for use in an ASTM E24.06.02 task group round robin activity was developed. Compact specimens were made of 2024-T351, 7075-T651 aluminum alloys, and 304 stainless steel. All were 12.7 mm thick and planar dimension variables incorporated were for 1T, 2T and 4T sizes. Representative raw data for each material and specimen size are contained herein. R-curves plotted in terms of delta a physical and delta a effective are plotted for each material.

The Robin Hood method - A novel numerical method for electrostatic problems based on a non-local charge transfer

International Nuclear Information System (INIS)

Lazic, Predrag; Stefancic, Hrvoje; Abraham, Hrvoje

2006-01-01

We introduce a novel numerical method, named the Robin Hood method, of solving electrostatic problems. The approach of the method is closest to the boundary element methods, although significant conceptual differences exist with respect to this class of methods. The method achieves equipotentiality of conducting surfaces by iterative non-local charge transfer. For each of the conducting surfaces, non-local charge transfers are performed between surface elements, which differ the most from the targeted equipotentiality of the surface. The method is tested against analytical solutions and its wide range of application is demonstrated. The method has appealing technical characteristics. For the problem with N surface elements, the computational complexity of the method essentially scales with N α , where α < 2, the required computer memory scales with N, while the error of the potential decreases exponentially with the number of iterations for many orders of magnitude of the error, without the presence of the Critical Slowing Down. The Robin Hood method could prove useful in other classical or even quantum problems. Some future development ideas for possible applications outside electrostatics are addressed

ROBINS-I: a tool for assessing risk of bias in non-randomised studies of interventions

OpenAIRE

Sterne, Jonathan AC; Hern?n, Miguel A; Reeves, Barnaby C; Savovi?, Jelena; Berkman, Nancy D; Viswanathan, Meera; Henry, David; Altman, Douglas G; Ansari, Mohammed T; Boutron, Isabelle; Carpenter, James R; Chan, An-Wen; Churchill, Rachel; Deeks, Jonathan J; Hr?bjartsson, Asbj?rn

2016-01-01

Non-randomized studies of the effects of interventions are critical to many areas of health care evaluation, but their results may be biased. It is therefore important to understand and appraise their strengths and weaknesses. We developed ROBINS-I (“Risk Of Bias In Non-randomized Studies - of Interventions”), a new tool for evaluating risk of bias in estimates of the comparative effectiveness (harm or benefit) of interventions from studies that did not use randomization to allocate units (in...

Application of electronic speckle-pattern interferometry to measure in-plane thermal displacement in flip-chip packages

International Nuclear Information System (INIS)

Lee, Baik-Woo; Jang, Woosoon; Kim, Dong-Won; Jeong, Jeung-hyun; Nah, Jae-Woong; Paik, Kyung-Wook; Kwon, Dongil

2004-01-01

Electronic speckle-pattern interferometry (ESPI) was applied for noncontact, real-time evaluation of thermal deformation in a flip-chip package. The spatial resolution of ESPI was increased to submicron scale by magnifying the areas studied in order to measure the deformation of such small-scale components as the solder in the flip-chip package. Thermal deformation in the horizontal and vertical directions around the solder joints was measured as two-dimensional mappings during heating from 25 to 125 deg. C. ESPI was successful in obtaining information on the complicated deformation field around the solder joints. Furthermore, the shear strain could also be calculated using the measured thermal deformation around each solder joint. The applicability of ESPI to flip-chip packages was verified by comparing the ESPI results with those of finite-element analysis (FEA)

Round Robin Analyses on Stress Intensity Factors of Inner Surface Cracks in Welded Stainless Steel Pipes

Directory of Open Access Journals (Sweden)

Chang-Gi Han

2016-12-01

Full Text Available Austenitic stainless steels (ASSs are widely used for nuclear pipes as they exhibit a good combination of mechanical properties and corrosion resistance. However, high tensile residual stresses may occur in ASS welds because postweld heat treatment is not generally conducted in order to avoid sensitization, which causes a stress corrosion crack. In this study, round robin analyses on stress intensity factors (SIFs were carried out to examine the appropriateness of structural integrity assessment methods for ASS pipe welds with two types of circumferential cracks. Typical stress profiles were generated from finite element analyses by considering residual stresses and normal operating conditions. Then, SIFs of cracked ASS pipes were determined by analytical equations represented in fitness-for-service assessment codes as well as reference finite element analyses. The discrepancies of estimated SIFs among round robin participants were confirmed due to different assessment procedures and relevant considerations, as well as the mistakes of participants. The effects of uncertainty factors on SIFs were deducted from sensitivity analyses and, based on the similarity and conservatism compared with detailed finite element analysis results, the R6 code, taking into account the applied internal pressure and combination of stress components, was recommended as the optimum procedure for SIF estimation.

Round robin analysis on stress intensity factor of inner surface cracks in welded stainless steel pipes

Energy Technology Data Exchange (ETDEWEB)

Han, Chang Gi; Chang, Yoon Suk [Dept. of Nuclear Engineering, College of Engineering, Kyung Hee University, Yongin (Korea, Republic of); Kim, Jong Sung [Dept. of Mechanical Engineering, Sunchon National University, Sunchon (Korea, Republic of); Kim, Maan Won [Central Research Institute, Korea Hydro and Nuclear Power Company, Daejeon (Korea, Republic of)

2016-12-15

Austenitic stainless steels (ASSs) are widely used for nuclear pipes as they exhibit a good combination of mechanical properties and corrosion resistance. However, high tensile residual stresses may occur in ASS welds because postweld heat treatment is not generally conducted in order to avoid sensitization, which causes a stress corrosion crack. In this study, round robin analyses on stress intensity factors (SIFs) were carried out to examine the appropriateness of structural integrity assessment methods for ASS pipe welds with two types of circumferential cracks. Typical stress profiles were generated from finite element analyses by considering residual stresses and normal operating conditions. Then, SIFs of cracked ASS pipes were determined by analytical equations represented in fitness-for-service assessment codes as well as reference finite element analyses. The discrepancies of estimated SIFs among round robin participants were confirmed due to different assessment procedures and relevant considerations, as well as the mistakes of participants. The effects of uncertainty factors on SIFs were deducted from sensitivity analyses and, based on the similarity and conservatism compared with detailed finite element analysis results, the R6 code, taking into account the applied internal pressure and combination of stress components, was recommended as the optimum procedure for SIF estimation.

PSI contribution to the CASTOC round robin on EAC of low-alloy RPV steels under BWR conditions

International Nuclear Information System (INIS)

Seifert, H.P.; Ritter, S.

2001-08-01

Within the CASTOC-project (5th EU FW programme), the environmentally-assisted crack growth (EAC) behaviour of low-alloy reactor pressure vessel (RPV) steels is experimentally investigated under simulated transient and steady-state BWR power operation conditions by 6 European laboratories. The present report contains a summary of the PSI contribution to the Working Package 1 (WP1) of this project. WP1 is an interlaboratory round robin EAC test in simulated BWR/NWC environment under cyclic and static loading conditions. The round robin shall demonstrate the applicability of the used advanced test technique and establishes the technical basis for the decision of test conditions in the other working packages. In the first part of the report, the PSI testing facility/measurement instruments and the applied test and evaluation procedure are discussed in detail. In the second part, the exact test conditions and test results with detailed post-test fractographical evaluation in the SEM are presented. The test results are compared with other PSI results, literature data and nuclear codes. Stable and stationary test conditions within the specified range could be achieved in the PSI test during the whole conditioning and experimental phase. The cyclic crack growth rate results agree well with recent PSI results at a higher dissolved oxygen content of 8 ppm and are slightly below the 'high-sulphur line' of the PLEDGE-model. The crack growth rates are significantly above the ASME XI 'wet' curve. Compared to fatigue crack growth rates in air under otherwise identical test conditions, the effect of the high-temperature water environment resulted in an acceleration of crack growth by a factor of 150-250 under these low-cyclic loading conditions. The test results at constant load confirm the extremely low susceptibility to SCC crack growth under static load at 288 o C observed in tests at MPA, PSI and in a European Round Robin. They agree well with the RPV operating experience

Obstructive Hydrocephalus Secondary to Enlarged Virchow-Robin Spaces: A Rare Cause of Pulsatile Tinnitus.

Science.gov (United States)

Donaldson, Christopher; Chatha, Gurkirat; Chandra, Ronil V; Goldschlager, Tony

2017-05-01

Obstructive hydrocephalus secondary to enlarged Virchow-Robin Spaces (VRS) is a rare entity, with only a few cases reported in the literature. Presenting symptoms vary widely from headaches to dizziness. We report a case of a 31-year-old man who presented with pulsatile tinnitus and magnetic resonance imaging showing obstructive hydrocephalus secondary to tumefactive VRS. After a cerebrospinal fluid diversion procedure in the form of an endoscopic third ventriculostomy, he had almost complete resolution of his symptoms. This is the first case of obstructive hydrocephalus secondary to enlarged VRS, presenting with pulsatile tinnitus. Copyright © 2017 Elsevier Inc. All rights reserved.

An Integrated Constraint Programming Approach to Scheduling Sports Leagues with Divisional and Round-robin Tournaments

Energy Technology Data Exchange (ETDEWEB)

Carlsson, Mats; Johansson, Mikael; Larson, Jeffrey

2014-01-01

Previous approaches for scheduling a league with round-robin and divisional tournaments involved decomposing the problem into easier subproblems. This approach, used to schedule the top Swedish handball league Elitserien, reduces the problem complexity but can result in suboptimal schedules. This paper presents an integrated constraint programming model that allows to perform the scheduling in a single step. Particular attention is given to identifying implied and symmetry-breaking constraints that reduce the computational complexity significantly. The experimental evaluation of the integrated approach takes considerably less computational effort than the previous approach.

Approximate controllability of a semilinear elliptic problem with Robin condition in a periodically perforated domain

Directory of Open Access Journals (Sweden)

Nikita Agarwal

2017-07-01

Full Text Available In this article, we study the approximate controllability and homegenization results of a semi-linear elliptic problem with Robin boundary condition in a periodically perforated domain. We prove the existence of minimal norm control using Lions constructive approach, which is based on Fenchel-Rockafeller duality theory, and by means of Zuazua's fixed point arguments. Then, as the homogenization parameter goes to zero, we link the limit of the optimal controls (the limit of fixed point of the controllability problems with the optimal control of the corresponding homogenized problem.

Statistical reliability assessment of UT round-robin test data for piping welds

International Nuclear Information System (INIS)

Kim, H.M.; Park, I.K.; Park, U.S.; Park, Y.W.; Kang, S.C.; Lee, J.H.

2004-01-01

Ultrasonic NDE is one of important technologies in the life-time maintenance of nuclear power plant. Ultrasonic inspection system is consisted of the operator, equipment and procedure. The reliability of ultrasonic inspection system is affected by its ability. The performance demonstration round robin was conducted to quantify the capability of ultrasonic inspection for in-service. Several teams employed procedures that met or exceeded with ASME sec. XI code requirements detected the piping of nuclear power plant with various cracks to evaluate the capability of detection and sizing. In this paper, the statistical reliability assessment of ultrasonic nondestructive inspection data using probability of detection (POD) is presented. The result of POD using logistic model was useful to the reliability assessment for the NDE hit or miss data. (orig.)

Oberbeck–Boussinesq free convection of water based nanoliquids in a vertical channel using Dirichlet, Neumann and Robin boundary conditions on temperature

Directory of Open Access Journals (Sweden)

Nur Asiah Mohd Makhatar

2016-09-01

Full Text Available A numerical investigation is carried out into the flow and heat transfer within a fully-developed mixed convection flow of water–alumina (Al2O3–water, water–titania (TiO2–water and water–copperoxide (CuO–water in a vertical channel by considering Dirichlet, Neumann and Robin boundary conditions. Actual values of thermophysical quantities are used in arriving at conclusions on the three nanoliquids. The Biot number influences on velocity and temperature distributions are opposite in regions close to the left wall and the right wall. Robin condition is seen to favour symmetry in the flow velocity whereas Dirichlet and Neumann conditions skew the flow distribution and push the point of maximum velocity to the right of the channel. A reversal of role is seen between them in their influence on the flow in the left-half and the right-half of the channel. This leads to related consequences in heat transport. Viscous dissipation is shown to aid flow and heat transport. The present findings reiterate the observation on heat transfer in other configurations that only low concentrations of nanoparticles facilitate enhanced heat transport for all three temperature conditions. Significant change was observed in Neumann condition, whereas the changes are too extreme in Dirichlet condition. It is found that Robin condition is the most stable condition. Further, it is also found that all three nanoliquids have enhanced heat transport compared to that by base liquid, with CuO–water nanoliquid shows higher enhancement in its Nusselt number, compared to Al2O3 and TiO2.

PSI contribution to the CASTOC round robin on EAC of low-alloy RPV steels under BWR conditions

Energy Technology Data Exchange (ETDEWEB)

Seifert, H.P.; Ritter, S

2001-08-01

Within the CASTOC-project (5th EU FW programme), the environmentally-assisted crack growth (EAC) behaviour of low-alloy reactor pressure vessel (RPV) steels is experimentally investigated under simulated transient and steady-state BWR power operation conditions by 6 European laboratories. The present report contains a summary of the PSI contribution to the Working Package 1 (WP1) of this project. WP1 is an interlaboratory round robin EAC test in simulated BWR/NWC environment under cyclic and static loading conditions. The round robin shall demonstrate the applicability of the used advanced test technique and establishes the technical basis for the decision of test conditions in the other working packages. In the first part of the report, the PSI testing facility/measurement instruments and the applied test and evaluation procedure are discussed in detail. In the second part, the exact test conditions and test results with detailed post-test fractographical evaluation in the SEM are presented. The test results are compared with other PSI results, literature data and nuclear codes. Stable and stationary test conditions within the specified range could be achieved in the PSI test during the whole conditioning and experimental phase. The cyclic crack growth rate results agree well with recent PSI results at a higher dissolved oxygen content of 8 ppm and are slightly below the 'high-sulphur line' of the PLEDGE-model. The crack growth rates are significantly above the ASME XI 'wet' curve. Compared to fatigue crack growth rates in air under otherwise identical test conditions, the effect of the high-temperature water environment resulted in an acceleration of crack growth by a factor of 150-250 under these low-cyclic loading conditions. The test results at constant load confirm the extremely low susceptibility to SCC crack growth under static load at 288 {sup o}C observed in tests at MPA, PSI and in a European Round Robin. They agree well with the RPV

Pretest round robin analysis of 1:4-scale prestressed concrete containment vessel model

International Nuclear Information System (INIS)

Hessheimer, M.F.; Luk, V.K.; Klamerus, E.W.; Shibata, S.; Mitsugi, S.; Costello, J.F.

2001-01-01

The work reported herein represents, arguably, the state of the art in the numerical simulation of the response of a prestressed concrete containment vessel (PCCV) model to pressure loads up to failure. A significant expenditure of time and money on the part of the sponsors, contractors, and Round Robin participants was required to meet the objectives. While it is difficult to summarize the results of this extraordinary effort in a few paragraphs, the following observations are offered for the reader's consideration: almost half the participants used ABAQUS as the primary computational tool for performing the pretest analyses. The other participants used a variety of codes, most of which were developed ''in house''. (author)

Cluster Server IPTV dengan Penjadwalan Algoritma Round Robin

Directory of Open Access Journals (Sweden)

Didik Aribowo

2016-03-01

Full Text Available Perkembangan teknologi informasi yang pesat, otomatis seiring juga dengan meningkatnya para pengguna yang terhubung pada jaringan internet. Berawal dari sebuah single server yang selalu mendapatkan request dari banyak user, perlahan tapi pasti akan terjadi overload dan crash sehingga berdampak pada request yang tidak dapat dilayani oleh single server. Desain arsitektur cluster dapat dibangun dengan menggunakan konsep network load balancing yang memungkinkan proses pengolahan data di share ke dalam beberapa komputer. Dalam penelitian ini menggunakan algoritma penjadwalan round robin sebagai solusi alternatif mengatasi permasalah overload data pada server yang dapat mempengaruhi kinerja sistem IPTV. Untuk  jumlah request yang digunakan dalam penelitian ini adalah 5000, 15000, 25000, dan 50000 request. Dengan metode tersebut, maka performansi algoritma penjawalan dapat diamati dengan menekankan pada parameter sebagai berikut, yaitu throughput, respon time, reply connection, dan error connection sehingga didapatkan algoritma penjadwalan terbaik dalam rangka optimalisasi cluster server IPTV. Secara otomatis dalam proses load balancing mampu mengurangi beban kerja setiap server sehingga tidak ada server yang overload dan memungkinkan server  menggunakan bandwidth  yang tersedia secara lebih efektif serta menyediakan akses yang cepat ke web browser yang dihosting. Implementasi webserver cluster dengan skema load balancing dapat memberikan alvalaibilitas sistem yang tetap terjaga dan skalabilitas yang cukup untuk dapat tetap melayani setiap request dari pengguna

Suffrage Movement and the Subversion of the ‘Juridico-Discursive’ Power in the Victorian Period: Elizabeth Robins and The Concept of 'New Women'

Directory of Open Access Journals (Sweden)

Esmaeil Najar

2016-01-01

Full Text Available This paper examines the socio-historical subversion of ‘juridico-discursive’ power in the late Victorian period. It briefly investigates the rise of the British suffrage movement and highlights the role of ‘suffrage drama’ as its social apparatus. The authors demonstrate how suffrage artists, especially the playwright/actress Elizabeth Robins, acted against the dominant patriarchal hegemony and were in frontline of social uprisings. It is argued that ‘Suffrage drama’ as a ‘place of tolerance’ functioned as an antithesis to the mainstream theatre and challenged the conventional dramatic forms practiced prior to its birth. Suffrage drama provided a space for women to have their collective voice heard in a social and political context in the early Victorian era. Elizabeth Robins, mostly acknowledged for enacting women heroines of Ibsen’s plays, became an invaluable inspirational figure for suffrage women as she was the actress in whom the strong concept of the ‘New Woman’ was incarnated.

Practical round-robin differential-phase-shift quantum key distribution

International Nuclear Information System (INIS)

Zhang, Zhen; Yuan, Xiao; Cao, Zhu; Ma, Xiongfeng

2017-01-01

The security of quantum key distribution (QKD) relies on the Heisenberg uncertainty principle, with which legitimate users are able to estimate information leakage by monitoring the disturbance of the transmitted quantum signals. Normally, the disturbance is reflected as bit flip errors in the sifted key; thus, privacy amplification, which removes any leaked information from the key, generally depends on the bit error rate. Recently, a round-robin differential-phase-shift QKD protocol for which privacy amplification does not rely on the bit error rate (Sasaki et al 2014 Nature 509 475) was proposed. The amount of leaked information can be bounded by the sender during the state-preparation stage and hence, is independent of the behavior of the unreliable quantum channel. In our work, we apply the tagging technique to the protocol and present a tight bound on the key rate and employ a decoy-state method. The effects of background noise and misalignment are taken into account under practical conditions. Our simulation results show that the protocol can tolerate channel error rates close to 50% within a typical experiment setting. That is, there is a negligible restriction on the error rate in practice. (paper)

General filtering method for electronic speckle pattern interferometry fringe images with various densities based on variational image decomposition.

Science.gov (United States)

Li, Biyuan; Tang, Chen; Gao, Guannan; Chen, Mingming; Tang, Shuwei; Lei, Zhenkun

2017-06-01

Filtering off speckle noise from a fringe image is one of the key tasks in electronic speckle pattern interferometry (ESPI). In general, ESPI fringe images can be divided into three categories: low-density fringe images, high-density fringe images, and variable-density fringe images. In this paper, we first present a general filtering method based on variational image decomposition that can filter speckle noise for ESPI fringe images with various densities. In our method, a variable-density ESPI fringe image is decomposed into low-density fringes, high-density fringes, and noise. A low-density fringe image is decomposed into low-density fringes and noise. A high-density fringe image is decomposed into high-density fringes and noise. We give some suitable function spaces to describe low-density fringes, high-density fringes, and noise, respectively. Then we construct several models and numerical algorithms for ESPI fringe images with various densities. And we investigate the performance of these models via our extensive experiments. Finally, we compare our proposed models with the windowed Fourier transform method and coherence enhancing diffusion partial differential equation filter. These two methods may be the most effective filtering methods at present. Furthermore, we use the proposed method to filter a collection of the experimentally obtained ESPI fringe images with poor quality. The experimental results demonstrate the performance of our proposed method.

Wind Turbine Gearbox Condition Monitoring Round Robin Study - Vibration Analysis

Energy Technology Data Exchange (ETDEWEB)

Sheng, S.

2012-07-01

The Gearbox Reliability Collaborative (GRC) at the National Wind Technology Center (NWTC) tested two identical gearboxes. One was tested on the NWTCs 2.5 MW dynamometer and the other was field tested in a turbine in a nearby wind plant. In the field, the test gearbox experienced two oil loss events that resulted in damage to its internal bearings and gears. Since the damage was not severe, the test gearbox was removed from the field and retested in the NWTCs dynamometer before it was disassembled. During the dynamometer retest, some vibration data along with testing condition information were collected. These data enabled NREL to launch a Wind Turbine Gearbox Condition Monitoring Round Robin project, as described in this report. The main objective of this project was to evaluate different vibration analysis algorithms used in wind turbine condition monitoring (CM) and find out whether the typical practices are effective. With involvement of both academic researchers and industrial partners, the project sets an example on providing cutting edge research results back to industry.

The First SeaWiFS HPLC Analysis Round-Robin Experiment (SeaHARRE-1)

Science.gov (United States)

Hooker, Stanford B. (Editor); Firestone, Elaine R. (Editor); Claustre, Herve; Ras, Josephine; VanHeukelem, Laurie; Berthon, Jean-Francois; Targa, Cristina; vanderLinde, Dirk; Barlow, Ray; Sessions, Heather

2001-01-01

Four laboratories, which had contributed to various aspects of SeaWiFS calibration and validation activities, participated in the first SeaWiFS HPLC Analysis Round-Robin Experiment (SeaHARRE-1): Horn Point Laboratory (USA), the Joint Research Centre (Italy), the Laboratoire de Physique et Chimie Marines (France), and the Marine and Coastal Management group (South Africa). The analyses of the data are presented in Chapter 1 and the individual methods of the four groups are presented in Chapters 2-5. The average (or overall) conclusions of the round-robin are derived from 12 in situ stations occupied during a cruise in the Mediterranean Sea, although, only 11 stations are used in the analyses. The data set is composed of 12 replicates taken during each sampling opportunity with 3 replicates going to each of the 4 laboratories. The average (or overall) results from the intercomparison of 15 pigments or pigment associations are as follows (in some cases, data subsets that exclude pigments which were not analyzed by all the laboratories, or that had unusually large variances, are used to exclude a variety of problematic pigments): a) the accuracy of the four methods in determining the concentration of total chlorophyll a is 7.9%, (one method did not separate mono- and divinyl chlorophyll a, and if the samples containing significant divinyl chlorophyll a concentrations are ignored, the four methods have an accuracy of 6.7%); b) the accuracy in determining the full set of pigments is 19.1%; c) there is a reduction in accuracy of approximately - 12.2% for every decade (factor of 10) decrease in concentration (based on a data subset); d) the precision of the four methods using a subset data is 8.617( 6.2% for an edited subset); e) the repeatability of the four methods using the subset data is 9.2% (7.2%; for an edited subset, and f) the reproducibility of the four methods using the subset data is 21.31% (15.0% for an edited subset).

Robins Air Force Base Solar Cogeneration Facility design

Energy Technology Data Exchange (ETDEWEB)

Pierce, B.L.; Bodenschatz, C.A.

1982-06-01

A conceptual design and a cost estimate have been developed for a Solar Cogeneration Facility at Robins Air Force Base. This demonstration solar facility was designed to generate and deliver electrical power and process steam to the existing base distribution systems. The facility was to have the potential for construction and operation by 1986 and make use of existing technology. Specific objectives during the DOE funded conceptual design program were to: prepare a Solar Cogeneration Facility (overall System) Specification, select a preferred configuration and develop a conceptual design, establish the performance and economic characteristics of the facility, and prepare a development plan for the demonstration program. The Westinghouse team, comprised of the Westinghouse Advanced Energy Systems Division, Heery and Heery, Inc., and Foster Wheeler Solar Development Corporation, in conjunction with the U.S. Air Force Logistics Command and Georgia Power Company, has selected a conceptual design for the facility that will utilize the latest DOE central receiver technology, effectively utilize the energy collected in the application, operate base-loaded every sunny day of the year, and be applicable to a large number of military and industrial facilities throughout the country. The design of the facility incorporates the use of a Collector System, a Receiver System, an Electrical Power Generating System, a Balance of Facility - Steam and Feedwater System, and a Master Control System.

Will the right Robin patient rise, please? Definitions and criteria during management of Robin sequence patients in the Netherlands and Belgium.

Science.gov (United States)

Basart, Hanneke; Kruisinga, Frea H; Breugem, Corstiaan C; Don Griot, J Peter W; Hennekam, Raoul C; Van der Horst, Chantal M A M

2015-01-01

Robin Sequence (RS) is characterized by micrognathia and upper airway obstruction (UAO), with or without cleft palate, causing respiratory and feeding problems. Management options are: positioning; nasopharyngeal airway (NPA); tongue-lip adhesion (TLA); mandibular distraction (MDO); and tracheostomy. Controversy exists in literature regarding RS definition and management. Here we describe definitions, management strategies and criteria in opting for management strategies, used by Dutch and Belgian cleft teams. A specifically designed questionnaire was sent to members of all 16 Dutch and Belgian cleft teams. 14 cleft teams returned 35 questionnaires. All used micrognathia as definition criterion, 93.4% cleft palate, 51.5%glossoptosis and 45.7% UAO. Six different RS definitions were used; even within a single team >1 definition was used. All teams used different management strategies: all used positioning, 10 NPA, 6 TLA, 7 MDO, 8 tracheostomy, 5 refer patients with invasive treatment indication. Criteria in opting management modalities were: O2-saturation (89.3%), clinical presentation (86.2%), growth and feeding problems (69.0%), polysomnography (62.1%), and differed within teams. The Dutch and Belgian cleft teams use variable RS definitions, different management modalities and criteria in choosing management strategies. A single, strict definition and evidence-based management guidelines should be formulated for optimal patient care. Copyright © 2014 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.

An object-based approach for detecting small brain lesions: application to Virchow-Robin spaces.

Science.gov (United States)

Descombes, Xavier; Kruggel, Frithjof; Wollny, Gert; Gertz, Hermann Josef

2004-02-01

This paper is concerned with the detection of multiple small brain lesions from magnetic resonance imaging (MRI) data. A model based on the marked point process framework is designed to detect Virchow-Robin spaces (VRSs). These tubular shaped spaces are due to retraction of the brain parenchyma from its supplying arteries. VRS are described by simple geometrical objects that are introduced as small tubular structures. Their radiometric properties are embedded in a data term. A prior model includes interactions describing the clustering property of VRS. A Reversible Jump Markov Chain Monte Carlo algorithm (RJMCMC) optimizes the proposed model, obtained by multiplying the prior and the data model. Example results are shown on T1-weighted MRI datasets of elderly subjects.

Combination of oriented partial differential equation and shearlet transform for denoising in electronic speckle pattern interferometry fringe patterns.

Science.gov (United States)

Xu, Wenjun; Tang, Chen; Gu, Fan; Cheng, Jiajia

2017-04-01

It is a key step to remove the massive speckle noise in electronic speckle pattern interferometry (ESPI) fringe patterns. In the spatial-domain filtering methods, oriented partial differential equations have been demonstrated to be a powerful tool. In the transform-domain filtering methods, the shearlet transform is a state-of-the-art method. In this paper, we propose a filtering method for ESPI fringe patterns denoising, which is a combination of second-order oriented partial differential equation (SOOPDE) and the shearlet transform, named SOOPDE-Shearlet. Here, the shearlet transform is introduced into the ESPI fringe patterns denoising for the first time. This combination takes advantage of the fact that the spatial-domain filtering method SOOPDE and the transform-domain filtering method shearlet transform benefit from each other. We test the proposed SOOPDE-Shearlet on five experimentally obtained ESPI fringe patterns with poor quality and compare our method with SOOPDE, shearlet transform, windowed Fourier filtering (WFF), and coherence-enhancing diffusion (CEDPDE). Among them, WFF and CEDPDE are the state-of-the-art methods for ESPI fringe patterns denoising in transform domain and spatial domain, respectively. The experimental results have demonstrated the good performance of the proposed SOOPDE-Shearlet.

Computational fluid dynamics (CFD) round robin benchmark for a pressurized water reactor (PWR) rod bundle

Energy Technology Data Exchange (ETDEWEB)

Kang, Shin K., E-mail: paengki1@tamu.edu; Hassan, Yassin A.

2016-05-15

Highlights: • The capabilities of steady RANS models were directly assessed for full axial scale experiment. • The importance of mesh and conjugate heat transfer was reaffirmed. • The rod inner-surface temperature was directly compared. • The steady RANS calculations showed a limitation in the prediction of circumferential distribution of the rod surface temperature. - Abstract: This study examined the capabilities and limitations of steady Reynolds-Averaged Navier–Stokes (RANS) approach for pressurized water reactor (PWR) rod bundle problems, based on the round robin benchmark of computational fluid dynamics (CFD) codes against the NESTOR experiment for a 5 × 5 rod bundle with typical split-type mixing vane grids (MVGs). The round robin exercise against the high-fidelity, broad-range (covering multi-spans and entire lateral domain) NESTOR experimental data for both the flow field and the rod temperatures enabled us to obtain important insights into CFD prediction and validation for the split-type MVG PWR rod bundle problem. It was found that the steady RANS turbulence models with wall function could reasonably predict two key variables for a rod bundle problem – grid span pressure loss and the rod surface temperature – once mesh (type, resolution, and configuration) was suitable and conjugate heat transfer was properly considered. However, they over-predicted the magnitude of the circumferential variation of the rod surface temperature and could not capture its peak azimuthal locations for a central rod in the wake of the MVG. These discrepancies in the rod surface temperature were probably because the steady RANS approach could not capture unsteady, large-scale cross-flow fluctuations and qualitative cross-flow pattern change due to the laterally confined test section. Based on this benchmarking study, lessons and recommendations about experimental methods as well as CFD methods were also provided for the future research.

Identification of alginite and bituminite in rocks other than coal. 2006, 2009 and 2011 round robin exercises of the ICCP Identification of Dispersed Organic Matter Working Group

Czech Academy of Sciences Publication Activity Database

Kus, J.; Araujo, C.V.; Borrego, A.G.; Flores, D.; Hackley, P.C.; Hámor-Vidó, M.; Kalaitzidis, S.; Kommeren, C.J.; Kwiecinska, B.; Mastalerz, M.; Mendonca Filho, J.G.; Menezes, T.R.; Misz-Kennan, M.; Nowak, G.J.; Petersen, H.I.; Rallakis, D.; Suárez-Ruiz, I.; Sýkorová, Ivana; Životič, D.

2017-01-01

Roč. 178, JUN 1 (2017), s. 26-38 ISSN 0166-5162 Institutional support: RVO:67985891 Keywords : ICCP * alginite * lamalginite * telalginite * maceral * round robin exercises * bituminite Subject RIV: DD - Geochemistry OBOR OECD: Geology Impact factor: 4.783, year: 2016

Results from an International Measurement Round Robin of III-V Triple Junction Solar Cells under Air Mass Zero

Science.gov (United States)

Jenkins, Phillip; Scheiman, Chris; Goodbody, Chris; Baur, Carsten; Sharps, Paul; Imaizumi, Mitsuru; Yoo, Henry; Sahlstrom, Ted; Walters, Robert; Lorentzen, Justin;

SCK-CEN Contribution to the IAEA Round Robin Exercise on WWER-440 RPV Weld Metal Irradiation Embrittlement, annealing and Re-Embrittlement. Second Progress Report

International Nuclear Information System (INIS)

Van Walle, E.; Chaouadi, R.; Scibetta, M.; Lucon, E.; Weber, M.

1999-07-01

The report gives the actual status of the contribution of the Belgian Nuclear Research Centre SCK-CEN to the IAEA Round Robin Exercise on WWER-440 RPV Weld Material Irradiation, Annealing and Re-Embrittlement. Results from the reference testing of unirradiated material as well as the results of the CHIVAS-7 experiment are discussed

Natal Dispersal in the North Island Robin (Petroica longipes: the Importance of Connectivity in Fragmented Habitats

Directory of Open Access Journals (Sweden)

Askia K. Wittern

2007-12-01

Full Text Available Natal dispersal is an important component in bird population dynamics and can influence the persistence of local and metapopulations. We examined natal dispersal in the North Island robin (Petroica longipes, a sedentary bird species distributed in a fragmented forest habitat on Tiritiri Matangi Island, New Zealand. Earlier studies have shown that the only dispersal phase in this species takes place when juveniles leave their natal patch, and that juveniles who fail to find suitable habitat do not survive their first winter. These findings suggest that natal dispersal behavior in this species is important for population viability. We found that juveniles were highly affected by the fragmentation of the forest habitat, with patch occupancy being positively correlated with degree of connectivity of the landscape. Most juvenile movements (52.1% were observed between patches that were separated by less than 20 m. Juvenile North Island robins were found in all forest habitat types, including young and open stands. This suggests that the juveniles are not dependent on old forest stands during their dispersal phase. Based on these findings, we suggest that management of this regionally-threatened species should focus not only on maintaining populations in occupied patches and increasing the habitat quality of these patches, but also on protecting existing forest patches acting as corridors and creating new forest habitat among patches. This would greatly increase the viability of the species' metapopulations by increasing dispersal success between both unoccupied patches and subpopulations. Additionally, increased connectivity between forest patches could also be expected to increase the probability of successful dispersal of other threatened native species, many of which are also sensitive to the high degree of fragmentation of their habitats.

"Robin Hood" of techno-Turkey or organ trafficking in the state of ethical beings.

Science.gov (United States)

Sanal, Aslihan

2004-09-01

Dr S. is a famous transplant surgeon in the Middle East. He operates "underground" on wealthy patients in different countries, from Israel to Turkey to Russia. The media refer to him as the "Organ Mafia doctor," and patients diagnosed with renal failure speak of him sardonically as "Robin Hood," acknowledging that he takes organs from the poor to give to the rich. But ethical issues of organ trafficking are not limited to marginal private clinics and "Mafia" doctors. All-living related organ transplants in Turkey involve similar ethical dilemmas: many related or nonrelated organ recipients pay their donors, and demand continues to rise. This paper explores practices in state and university hospitals and the ethical dilemmas doctors encounter to understand where and how judicial, cultural, and social categories of "human rights" and "crime" are constructed in our high-tech world.

Diversity Networks

Science.gov (United States)

and professional growth of women through networking, mentoring and training. We strive to ensure that will be used. National Processing Center Seniors Leader: Jo Anne Hankins Champion: Eric Milliner NO

ESA's Ice Sheets CCI: validation and inter-comparison of surface elevation changes derived from laser and radar altimetry over Jakobshavn Isbræ, Greenland – Round Robin results

DEFF Research Database (Denmark)

Fredenslund Levinsen, Joanna; Khvorostovsky, K.; Ticconi, F.

2013-01-01

method for determining each parameter. This work describes the SEC Round Robin and the subsequent conclusions leading to the creation of a method for determining GrIS SEC values. The participants used either Envisat radar or ICESat laser altimetry over Jakobshavn Isbræ drainage basin, and the submissions...

A round robin test of the uncertainty on the measurementof the thermoelectric dimensionless figure of merit of Co.sub.0.97./sub.Ni.sub.0.03./sub.Sb.sub.3./sub..

Czech Academy of Sciences Publication Activity Database

Alleno, E.; Bérardan, D.; Byl, C.; Candolfi, C.; Daou, R.; Decourt, R.; Guilmeau, E.; Hébert, S.; Hejtmánek, Jiří; Lenoir, B.; Masschelein, P.; Ohorodnichuk, V.; Pollet, M.; Populoh, S.; Ravot, D.; Rouleau, O.; Soulier, M.

2015-01-01

Roč. 86, č. 1 (2015), "011301-1"-"011301-8" ISSN 0034-6748 Institutional support: RVO:68378271 Keywords : thermoelectricity * thermoelectric metrology * round robin test Subject RIV: BM - Solid Matter Physics ; Magnetism Impact factor: 1.336, year: 2015

Verification of the Robin and Graham classification system of hip disease in cerebral palsy using three-dimensional computed tomography.

Science.gov (United States)

Gose, Shinichi; Sakai, Takashi; Shibata, Toru; Akiyama, Keisuke; Yoshikawa, Hideki; Sugamoto, Kazuomi

2011-12-01

We evaluated the validity of the Robin and Graham classification system of hip disease in cerebral palsy (CP) using three-dimensional computed tomography in young people with CP. A total of 91 hips in 91 consecutive children with bilateral spastic CP (57 males, 34 females; nine classified at Gross Motor Function Classification System level II, 42 at level III, 32 at level IV, and eight at level V; mean age 5 y 2 mo, SD 11 mo; range 2-6 y) were investigated retrospectively using anteroposterior plain radiographs and three-dimensional computed tomography (3D-CT) of the hip. The migration percentage was calculated on plain radiographs and all participants were classified into four groups according to migration percentage: grade II, migration percentage ≥ 10% but ≤ 15%, (four hips), grade III, migration percentage >15% but ≤ 30%, (20 hips); grade IV, migration percentage >30% but <100%, (63 hips); and grade V, migration percentage ≥ 100%, (four hips). The lateral opening angle and the sagittal inclination angle of the acetabulum, the neck-shaft angle, and the femoral anteversion of the femur were measured on 3D-CT. The three-dimensional quantitative evaluation indicated that there were significant differences in the lateral opening angle and the neck-shaft angle between the four groups (Kruskal-Wallis test, p ≤ 0.001). This three-dimensional evaluation supports the validation of the Robin and Graham classification system for hip disease in 2- to 7-year-olds with CP. © The Authors. Developmental Medicine & Child Neurology © 2011 Mac Keith Press.

Phytoremediated marine sediments as suitable peat-free growing media for production of red robin photinia (Photinia x fraseri).

Science.gov (United States)

Mattei, Paola; Gnesini, Alessandro; Gonnelli, Cristina; Marraccini, Chiara; Masciandaro, Grazia; Macci, Cristina; Doni, Serena; Iannelli, Renato; Lucchetti, Stefano; Nicese, Francesco P; Renella, Giancarlo

2018-06-01

Sediments dredged by an industrial port, slightly contaminated by heavy metals and petroleoum hydrocarbons, were phytoremediated and used as peat-free growing media for the red robin photinia (Photinia x fraseri L.). Plants were grown on sediment only (S), sediment mixed with composted pruning residues (S + PR), sediment fertilized with controlled release fertilizers (S + F) and peat-based growing media as control (C). Plant elongation and dry weight, leaf contents of chlorophyll, malondialdehyde (MDA), macronutrients and heavy metals were determined at the end of one growing season. Environmental impact related to the use of sediment-based as compared to peat-based growing media was assessed by the Life Cycle Analysis (LCA). Sediment-based growing media presented significantly higher bulk density, pH and electrical conductivity values, lower C and N contents, and significantly higher total and available P. Red robin photinia grown on S + F growing media showed morphological and chemical parameters similar to those of control plants (C), whereas plants grown on S and S + PR showed lower growth. Leaf concentration of nutrients and heavy metals varied depending on the considered element and growing media, but were all within the common values for ornamental plants, whereas the highest MDA concentrations were found in plants grown on traditional growing media. The LCA indicated the use of sediments as growing media reduced the C footprint of ornamental plant production and the contribute of growing media to the environmental impact per produced plant. We concluded that sediments phytoremediation and use in plant nursery is a practical alternative re-use option for dredged sediments. Copyright © 2018 Elsevier Ltd. All rights reserved.

Progress report on a NDT round robin on austenitic circumferential pipe welds; Fortschrittsbericht ueber einen ZfP-Ringversuch an austenitischen Rohrleitungs-Rundschweissnaehten

Energy Technology Data Exchange (ETDEWEB)

Brast, G [Preussische Elektrizitaets-AG (Preussenelektra), Hannover (Germany); Maier, H J; Knoch, P; Mletzko, U [Stuttgart Univ. (Germany). Staatliche Materialpruefungsanstalt

1998-11-01

The objective of the project is establish on the basis of Round Robin tests the current state of efficiency of various, defined testing methods, so that required or achievable optimizations can be defined and made. The project work up to date encompasses mon-destructive examinations of 15 austenitic welds with nominal widths DN 150/200/250 and wall thicknesses from 8 to 18 mm. Except for one test piece, (elbow/elbow), the joining welds are straight pipe to elbow welds. The results of the Round Robin tests show that the NDE detection limits for the fault examined (intercrystalline stress corrosion cracking) are in the range assumed so far, i.e. from about 20 to 25% of the wall thickness to be examined. The defect detection rates of the ultrasonic test methods applied are approx. 70% and thus are about equal in achievement with comparable international Round Robin tests (PISC; ASME/PDI, ENIQ, etc.). Clearly better are the fault detection rates of radiography. Evaluation of the individual results indicates the detection limits can be improved, by 1. reducing the misalignment of edges, 2. grinding of welds, 3. avoiding sharp notches at the root, 4. producing coaxial surfaces. (orig./CB) [Deutsch] Ein Ziel des Vorhabens ist es, mit Ringversuchen den derzeitigen Stand der Leistungsfaehigkeit einzelner Pruefverfahren und -techniken zu erkennen, um moeglicherweise notwendige Optimierungen vornehmen zu koennen. Das Vorhaben umfasst bis jetzt zerstoerungsfreie Pruefungen an 15 austenitischen Naehten mit Nennweiten DN 150/200/250 und Wandstaerken zwischen 8 und 18 mm. Mit einer Ausnahme (Bogen/Bogen) handelt es sich um Verbindungen Geradrohr/Bogen. Die Ergebnisse des Ringversuches weisen darauf hin, dass die Nachweisgrenzen der ZfP fuer den vorliegenden Fehlertyp (Interkristalline Spannungsrisskorrosion) in der bisher schon angenommenen Groessenordnung von ca. 20-25% der geprueften Wanddicke liegen. Die Fehlerauffind-Raten der US-Pruefung liegen mit ca. 70% im Rahmen

Highly Efficient Multi Channel Packet Forwarding with Round Robin Intermittent Periodic Transmit for Multihop Wireless Backhaul Networks

Science.gov (United States)

Furukawa, Hiroshi

2017-01-01

Round Robin based Intermittent Periodic Transmit (RR-IPT) has been proposed which achieves highly efficient multi-hop relays in multi-hop wireless backhaul networks (MWBN) where relay nodes are 2-dimensionally deployed. This paper newly investigates multi-channel packet scheduling and forwarding scheme for RR-IPT. Downlink traffic is forwarded by RR-IPT via one of the channels, while uplink traffic and part of downlink are accommodated in the other channel. By comparing IPT and carrier sense multiple access with collision avoidance (CSMA/CA) for uplink/downlink packet forwarding channel, IPT is more effective in reducing packet loss rate whereas CSMA/CA is better in terms of system throughput and packet delay improvement. PMID:29137164

Stainless Steel Round Robin Test: Centrifugally cast stainless steel screening phase

Energy Technology Data Exchange (ETDEWEB)

Bates, D J; Doctor, S R; Heasler, P G; Burck, E

1987-10-01

This report presents the results of the Centrifugally Cast Stainless Steel Round Robin Test (CCSSRRT). The CCSSRRT is the first phase of an effort to investigate and improve the capability and reliability of NDE inspections of light water reactor piping systems. This phase was a screening test to identify the most promising procedures presently available for CCSS. The next phase will be an in-depth program to evaluate the capability and reliability of inservice inspections (ISI) for piping. In the CCSSRRT, 15 centrifugally cast stainless steel pipe sections containing welds and laboratory-grown thermal fatigue cracks in both columnar and equiaxed base material were used. These pipe specimens were inspected by a total of 18 teams from Europe and the United States using a variety of NDE techniques, mostly ultrasonic (UT). The inspections were carried out at the team's facilities and included inspections from both sides of the weld and inspections restricted to one side of the weld. The results of the CCSSRRT make it apparent that a more detailed study on the capability and reliability of procedures to inspect stainless steel materials is needed to better understand the specific material and flaw properties and how they affect the outcome of an inspection.

VINTE ANOS DA LEI ROBIN HOOD: UM BALANÇO DA PROTEÇÃO DO PATRIMÔNIO CULTURAL EM MINAS GERAIS (Dossiê: Gestão, Educação e Patrimônio Cultural

Directory of Open Access Journals (Sweden)

Helaine Nolasco Queiroz

2015-06-01

Full Text Available Resumo: O presente texto busca discutir o impacto causado na preservação do patrimônio cultural mineiro pela lei Robin Hood ou Lei do ICMS que, em 2015, completa vinte anos de vigência. Ele partiu das reflexões apresentadas no XIX Simpósio Regional da ANPUH, realizado em Juiz de Fora em 2014, cujo tema foi Profissão historiador: formação e mercado de trabalho, e mostrou-se digno de maior divulgação e publicaçao pela atualidade e relevância do tema. O objetivo é conjecturar sobre as mudanças trazidas pela lei na preservação do patrimônio de Minas Gerais tanto no órgão fiscalizador da preservação no estado quanto nos municípios que aderiram à lei e, ainda, na atuação profissional dos que se dedicam à área. Palavras-chave: Patrimônio cultural, ICMS cultural, Lei Robin Hood, Minas Gerais, IEPHA/MG   Abstract: This text intends to discuss the impact caused in the Cultural Heritage of Minas Gerais (Brazil by the Robin Wood Law, or Low of the ICMS, that completes 20 years of existence in 2015. The idea received an explanation in the XIX Regional Simposion of ANPUH that took place in Juiz de Fora (Minas Gerais, Brazil in 2014. The theme of the simposium was The profession of historian: superior education and work marketing and it showed the actuality and the relevance of deeper discusstions about the subject. The purpose of the article is to reflect about the changes brought by the law in the cultural heritage preservation in Minas Gerais, in the organ that inspects the aplication of the law, in the cities that gain the ressourcers of the law and in the actuation of the professionals of the area.Keywords: Cultural Heritage, ICMS Law, Robin Hood Law, Minas Gerais (Brazil, IEPHARecebido em: 20/05/2015 – Aceito em 23/06/2015

Validação das equações desenvolvidas por Hankins e Howe para predição da composição da carcaça de zebuínos e desenvolvimento de equações para estimativa da composição corporal Validation of the equations proposed by Hankins and Howe for estimating the carcass composition of zebu cattle and development of equations to predict the body composition

Directory of Open Access Journals (Sweden)

Pedro Veiga Rodrigues Paulino

2005-02-01

Full Text Available Validaram-se as equações desenvolvidas por Hankins e Howe (1946 para fins de predição da composição física e química da carcaça e desenvolveram-se equações a partir de corte da costela para se estimar a composição química do corpo vazio. Foram utilizados 19 novilhos anelorados, com peso vivo médio inicial de 270 kg e 24 meses de idade, castrados - quatro pertencentes ao grupo referência, três ao grupo mantença e 12 distribuídos uniformemente em três grupos, com diferentes níveis de concentrado na dieta (5, 35 e 65% na base da matéria seca total. Como volumoso, foi utilizado pré-secado de capim-braquiária (Brachiaria brizantha e de capim-tifton 85 (Cynodon sp.. As dietas foram isoprotéicas e os alimentos foram fornecidos permitindo-se cerca de 5% de sobras. Os animais do grupo mantença e dos tratamentos com 5, 35 e 65% de concentrado foram alimentados por um período de, respectivamente, 84, 109, 104 e 102 dias, após o qual foram abatidos, apresentando peso vivo médio de 340,25; 360,55 e 374,50 kg, respectivamente. Após o abate, procedeu-se à dissecação completa da carcaça direita e do corte das 9-10-11ª costelas, retirado da carcaça esquerda. O corte das 9-10-11ª costelas estimou satisfatoriamente a composição física da carcaça dos animais e estimou adequadamente os conteúdos de proteína, água e minerais da carcaça, enquanto o teor de extrato etéreo foi superestimado em 7,8%. Foi desenvolvida uma equação para estimar a porcentagem de extrato etéreo na carcaça a partir da porcentagem desse componente no corte das 9-10-11ª costelas: % EE na carcaça = 1,0709 + 0,7854 * % EE no corte das 9-10-11ª costelas, r² = 0,97. A composição química do corpo vazio pode ser estimada satisfatoriamente a partir da composição química do corte das 9-10-11ª costelas, entretanto, mais informações devem ser geradas para que se possa obter equações mais abrangentes e aplicáveis de forma confi

Round-robin activities on finite element analyses of elastic-plastic fracture in Japan

International Nuclear Information System (INIS)

Shimakawa, T.; Takahashi, Y.; Yagawa, G.

1989-01-01

The establishment of the leak-before-break (LBB) concept requires a method to evaluate the fracture characteristics. The finite element method can be used for this purpose but the solution is more or less influenced by the method employed. In this study, two round-robin analyses are performed for three-dimensional crack problems. The first problem is for surface crack growth in a carbon steel plate subjected to tension loading. Ten solutions are obtained by ten participants, and calculated results are compared with each other as to the applied load, displacement and J-integral. Though the relation between applied load and displacement is affected by modeling of the stress-strain curve, fairly good agreement is obtained between the solutions. The second problem is for a circumferential part-through crack in a carbon steel pipe subjected to a bending moment. Nine solutions are obtained by eight participants. The difference between the solutions is relatively significant as to the relation between J-integral and load-point displacement. A discussion is made about the sources of difference between each solution. (orig.)

Enhanced first-in-first-out-based round-robin multicast scheduling algorithm for input-queued switches

DEFF Research Database (Denmark)

Yu, Hao; Ruepp, Sarah Renée; Berger, Michael Stübert

2011-01-01

This study focuses on the multicast scheduling for M × N input-queued switches. An enhanced first-in-first-out -based round-robin multicast scheduling algorithm is proposed with a function of searching deeper into queues to reduce the head-of-line (HOL) blocking problem and thereby the multicast...... out on the decision matrix to reduce the number of transmission for each cell. To reduce the HOL blocking problem, a complement matrix is constructed based on the traffic matrix and the decision matrix, and a process of searching deeper into the queues is carried out to find cells that can be sent...... to the idle outputs. Simulation results show that the proposed function of searching deeper into the queues can alleviate the HOL blocking and as a result reduce the multicast latency significantly. Under both balanced and unbalanced multicast traffic, the proposed algorithm is able to maintain a stable...

Notch root strain measurement of WE43-T6 magnesium alloy using electronic speckle pattern interferometry

International Nuclear Information System (INIS)

Liew, H.L.; Ahmad, A.; Ramesh, S.; Purbolaksono, J.

2013-01-01

Highlights: • The use of ESPI for measuring total strains at the notch root of specimens. • Fine meshing in micron scale at the notch root regions. • The maximum elastic strain is shifted to be further away from the notch root tip. - Abstract: The notch root elasto-plastic strains of circumferentially grooved round specimen of cast magnesium WE43-T6 were experimentally measured using the electronic speckle pattern interferometry (ESPI) and numerically evaluated using the finite element analysis (FEA). The specimens have notch radii of 1.6 mm and 0.8 mm and an opening angle of 60°. The technique of ESPI showed its accuracy in measuring three-dimensional surface deformations on large negatively curved manifolds. The measured nominal stress for rupture is well beyond the ultimate strength, suggesting the existence of significant biaxial stress at the notch root region. The ESPI-based strains on the notch tips were shown to be in agreement with those evaluated by the FEA. The FEA also showed that the maximum elastic strain is shifted away from the notch root surface as the plastic strain is predominant

Round robin tests of Tc and Ic on YBa/sub 2/Cu/sub 3/O/sub x/

International Nuclear Information System (INIS)

Kimura, Y.; Higuchi, N.; Meguro, S.; Takahashi, K.; Uyeda, K.; Ishihara, T.; Inukai, E.; Umeda, M.

1989-01-01

In the author's research and development of oxide superconducting material, methods for measuring the critical properties such as critical temperature and critical current were investigated and studied by way of round robin tests. The investigation was carried out through the steps of (1) decision on the specifications of common samples and measuring methods, (2) preparation and characterization of common samples, (3) distribution of samples to ten member research organs of Super-GM, (4) experimental measurement in the respective research organs, and (5) analysis of measurement results. The measurement of critical temperature and critical current were made mainly using the 4-probe method, and partially the magnetization method. The results were found to disperse, depending on the measurement methods and definitions of Tc and lc. Data analysis with these factors clarified is important

The regeneration of a multi-ethnic mixed-use area: The case of Robin Hood Chase

Directory of Open Access Journals (Sweden)

Ian Bentley

1997-01-01

Full Text Available Urban designers show increasing interest in promoting community participation in urban regeneration and especially housing regeneration. However, effective participation has proved difficult in multi-ethnic mixed-use areas, with their wide range of different (and often conflicting interest groups. This paper, presented in case-study form, analyses a project in one such area: the Robin Hood Chase local centre in St. Ann’s area of Nottingham. It pays particular attention to the identification of different interest groups and their associated institutions, the use of local media and social events to involve these groups in the urban design process, the use of rearrangeable models in a process of “enquiry by design”, and the production of a widely acceptable urban design strategy for the area. Analysis of feedback from participants indicates a high level of satisfaction both with the final physical design proposal and with the process itself; and also identifies directions for further development in the approach and techniques employed.

Round Robin test for the determination of nitrogen concentration in solid Lithium

International Nuclear Information System (INIS)

Favuzza, P.; Antonelli, A.; Furukawa, T.; Groeschel, F.; Hedinger, R.; Higashi, T.; Hirakawa, Y.; Iijima, M.; Ito, Y.; Kanemura, T.; Knaster, J.; Kondo, H.; Miccichè, G.; Nitti, F.S.; Ohira, S.; Severi, M.; Sugimoto, M.; Suzuki, A.; Traversi, R.; Wakai, E.

2016-01-01

Highlights: • Nitrogen contained in solid Lithium is converted into Ammonium ion. • Ammonium ion is suitably quantified by ionic chromatograph or by Ammonia sensor. • Good agreement of the partner’s results has been achieved. • Maximum operative reproducibility and blank subtraction are necessary. - Abstract: Three different partners, ENEA, JAEA ed University of Tokyo, have been involved during 2014–2015 in the Round Robin experimentation for the assessment of the soundness of the analitycal procedure for the determination of the Nitrogen impurities contained inside a solid Lithium sample. Two different kinds of Lithium samples, differing by about an order of magnitude in Nitrogen concentration (∼230 wppm; ∼20–30 wppm), have been selected for this cross analysis. The agreement of the achieved results appears very good for what concerns the most concentrated Lithium and indicates each partner’s procedure is appropriate and intrinsecally able to lead to meaningful values, characterized by a relative uncertainty of just few %. The smaller agreement in the case of the less concentrated Lithium anyway points out that particular attention must be paid to reduce as much as possible any source of external contamination and highlights the importance of the proper blank subtraction.

Round Robin test for the determination of nitrogen concentration in solid Lithium

Energy Technology Data Exchange (ETDEWEB)

Favuzza, P., E-mail: paolo.favuzza@enea.it [ENEA Center, Via Madonna del Piano 10, 50019 Sesto Fiorentino (Italy); Antonelli, A. [ENEA Research Center, Brasimone, 40035, Camugnano (Italy); Furukawa, T. [JAEA Research Center, Tokai-mura, Ibaraki (Japan); Groeschel, F. [KIT Research Center, Hermann-von-Helmholtz-Platz 1,76344 Eggenstein-Leopoldshafen (Germany); Hedinger, R. [F4E Research Center, Boltzmannstraße 2, 85748 Garching (Germany); Higashi, T. [University of Tokyo (Japan); Hirakawa, Y.; Iijima, M.; Ito, Y.; Kanemura, T. [JAEA Research Center, Tokai-mura, Ibaraki (Japan); Knaster, J. [IFMIF-EVEDA Project Team, Rokkasho (Japan); Kondo, H. [JAEA Research Center, Tokai-mura, Ibaraki (Japan); Miccichè, G.; Nitti, F.S. [ENEA Research Center, Brasimone, 40035, Camugnano (Italy); Ohira, S. [JAEA Research Center, Tokai-mura, Ibaraki (Japan); Severi, M. [University of Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino (Italy); Sugimoto, M. [JAEA Research Center, Rokkasho (Japan); Suzuki, A. [University of Tokyo (Japan); Traversi, R. [University of Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino (Italy); Wakai, E. [JAEA Research Center, Tokai-mura, Ibaraki (Japan)

2016-06-15

Highlights: • Nitrogen contained in solid Lithium is converted into Ammonium ion. • Ammonium ion is suitably quantified by ionic chromatograph or by Ammonia sensor. • Good agreement of the partner’s results has been achieved. • Maximum operative reproducibility and blank subtraction are necessary. - Abstract: Three different partners, ENEA, JAEA ed University of Tokyo, have been involved during 2014–2015 in the Round Robin experimentation for the assessment of the soundness of the analitycal procedure for the determination of the Nitrogen impurities contained inside a solid Lithium sample. Two different kinds of Lithium samples, differing by about an order of magnitude in Nitrogen concentration (∼230 wppm; ∼20–30 wppm), have been selected for this cross analysis. The agreement of the achieved results appears very good for what concerns the most concentrated Lithium and indicates each partner’s procedure is appropriate and intrinsecally able to lead to meaningful values, characterized by a relative uncertainty of just few %. The smaller agreement in the case of the less concentrated Lithium anyway points out that particular attention must be paid to reduce as much as possible any source of external contamination and highlights the importance of the proper blank subtraction.

Nonlinear model updating applied to the IMAC XXXII Round Robin benchmark system

Science.gov (United States)

Kurt, Mehmet; Moore, Keegan J.; Eriten, Melih; McFarland, D. Michael; Bergman, Lawrence A.; Vakakis, Alexander F.

2017-05-01

We consider the application of a new nonlinear model updating strategy to a computational benchmark system. The approach relies on analyzing system response time series in the frequency-energy domain by constructing both Hamiltonian and forced and damped frequency-energy plots (FEPs). The system parameters are then characterized and updated by matching the backbone branches of the FEPs with the frequency-energy wavelet transforms of experimental and/or computational time series. The main advantage of this method is that no nonlinearity model is assumed a priori, and the system model is updated solely based on simulation and/or experimental measured time series. By matching the frequency-energy plots of the benchmark system and its reduced-order model, we show that we are able to retrieve the global strongly nonlinear dynamics in the frequency and energy ranges of interest, identify bifurcations, characterize local nonlinearities, and accurately reconstruct time series. We apply the proposed methodology to a benchmark problem, which was posed to the system identification community prior to the IMAC XXXII (2014) and XXXIII (2015) Conferences as a "Round Robin Exercise on Nonlinear System Identification". We show that we are able to identify the parameters of the non-linear element in the problem with a priori knowledge about its position.

The Influence of Different Cover Types on American Robin Nest Success in Organic Agroecosystems

Directory of Open Access Journals (Sweden)

James R. Brandle

2013-08-01

Full Text Available There are many opportunities for biodiversity conservation in organic farm systems. Successful and sustainable conservation efforts in organic systems, however, need to measure appropriate outcomes. In particular, data are needed on the breeding success of associated wildlife species. We measured nesting success of the American Robin (Turdus migratorius in woodlands embedded within eight organic farms in eastern Nebraska. We modeled daily nest survival rate to identify land use and land cover patterns that optimize conservation of birds in organic farm systems. The percentage of a crop in the fields adjacent to linear woodlands best predicted daily survival rate. Daily survival rate was lower in fields adjacent to wheat and greater in woodlands adjacent to soybean fields, though the latter may be a weak effect. There was no evidence that reducing the area allocated to organic crop production would improve daily survival rate but rather an evidence of a patch-matrix interaction. These results suggest that, if suitable nesting sites exist, organic farmers can complement local conservation efforts without losing working farmland.

Large anterior temporal Virchow-Robin spaces: unique MR imaging features

Energy Technology Data Exchange (ETDEWEB)

Lim, Anthony T. [Monash University, Neuroradiology Service, Monash Imaging, Monash Health, Melbourne, Victoria (Australia); Chandra, Ronil V. [Monash University, Neuroradiology Service, Monash Imaging, Monash Health, Melbourne, Victoria (Australia); Monash University, Department of Surgery, Faculty of Medicine, Nursing and Health Sciences, Melbourne (Australia); Trost, Nicholas M. [St Vincent' s Hospital, Neuroradiology Service, Melbourne (Australia); McKelvie, Penelope A. [St Vincent' s Hospital, Anatomical Pathology, Melbourne (Australia); Stuckey, Stephen L. [Monash University, Neuroradiology Service, Monash Imaging, Monash Health, Melbourne, Victoria (Australia); Monash University, Southern Clinical School, Faculty of Medicine, Nursing and Health Sciences, Melbourne (Australia)

2015-05-01

Large Virchow-Robin (VR) spaces may mimic cystic tumor. The anterior temporal subcortical white matter is a recently described preferential location, with only 18 reported cases. Our aim was to identify unique MR features that could increase prospective diagnostic confidence. Thirty-nine cases were identified between November 2003 and February 2014. Demographic, clinical data and the initial radiological report were retrospectively reviewed. Two neuroradiologists reviewed all MR imaging; a neuropathologist reviewed histological data. Median age was 58 years (range 24-86 years); the majority (69 %) was female. There were no clinical symptoms that could be directly referable to the lesion. Two thirds were considered to be VR spaces on the initial radiological report. Mean maximal size was 9 mm (range 5-17 mm); majority (79 %) had perilesional T2 or fluid-attenuated inversion recovery (FLAIR) hyperintensity. The following were identified as potential unique MR features: focal cortical distortion by an adjacent branch of the middle cerebral artery (92 %), smaller adjacent VR spaces (26 %), and a contiguous cerebrospinal fluid (CSF) intensity tract (21 %). Surgery was performed in three asymptomatic patients; histopathology confirmed VR spaces. Unique MR features were retrospectively identified in all three patients. Large anterior temporal lobe VR spaces commonly demonstrate perilesional T2 or FLAIR signal and can be misdiagnosed as cystic tumor. Potential unique MR features that could increase prospective diagnostic confidence include focal cortical distortion by an adjacent branch of the middle cerebral artery, smaller adjacent VR spaces, and a contiguous CSF intensity tract. (orig.)

Transactional Relationships among Cognitive Vulnerabilities, Stressors, and Depressive Symptoms in Adolescence

Science.gov (United States)

Calvete, Esther; Orue, Izaskun; Hankin, Benjamin L.

2013-01-01

The transactional cognitive vulnerability to stress model Hankin & Abramson ('Psychological Bulletin," 127:773-796, 2001) extends the traditional diathesis-stress model by proposing that the relationships among cognitions, depressive symptoms, and stressors are dynamic and bidirectional. In this study three different pathways among these variables…

Round robin test on quantification of amyloid-β 1-42 in cerebrospinal fluid by mass spectrometry.

Science.gov (United States)

Pannee, Josef; Gobom, Johan; Shaw, Leslie M; Korecka, Magdalena; Chambers, Erin E; Lame, Mary; Jenkins, Rand; Mylott, William; Carrillo, Maria C; Zegers, Ingrid; Zetterberg, Henrik; Blennow, Kaj; Portelius, Erik

2016-01-01

Cerebrospinal fluid (CSF) amyloid-β 1-42 (Aβ42) is an important biomarker for Alzheimer's disease, both in diagnostics and to monitor disease-modifying therapies. However, there is a great need for standardization of methods used for quantification. To overcome problems associated with immunoassays, liquid chromatography-tandem mass spectrometry (LC-MS/MS) has emerged as a critical orthogonal alternative. We compared results for CSF Aβ42 quantification in a round robin study performed in four laboratories using similar sample preparation methods and LC-MS instrumentation. The LC-MS results showed excellent correlation between laboratories (r(2) >0.98), high analytical precision, and good correlation with enzyme-linked immunosorbent assay (r(2) >0.85). The use of a common reference sample further decreased interlaboratory variation. Our results indicate that LC-MS is suitable for absolute quantification of Aβ42 in CSF and highlight the importance of developing a certified reference material. Copyright © 2016 The Alzheimer's Association. Published by Elsevier Inc. All rights reserved.

Environmental Science: Processes & Impacts in 2018.

Science.gov (United States)

2018-02-21

2017 was another successful year for Environmental Science: Processes & Impacts (ESPI); it saw the expansion of our Editorial team and publication of two excellent Themed Issues, all while maintaining our commitment to provide our authors with exceptional customer service and fast times to publication. Through this Editorial, we wish to reflect upon some of the highlights from 2017 and also take this opportunity to reveal further new additions to the ESPI team and our plans for 2018.

Embodiment and Entangled Subjectivity: A Study of Robin Cook's Coma, Priscille Sibley's The Promise of Stardust and Alexander Beliaev's Professor Dowell's Head.

Science.gov (United States)

Karmakar, Manali; Parui, Avishek

2018-03-22

The essay examines Robin Cook's (1977) Coma and Priscille Sibley's (2013) The Promise of Stardust that dramatize the reified and disposable status of the brain-dead patients who are classified as nonpersons. The essay argues that the man-machine entanglement as depicted in the novels constructs a deterritorialized and entangled form of subjectivity that intervenes in the dominant biomedical understanding of personhood and agency that we notionally associate with a conscious mind. The essay concludes its arguments by discussing Alexander Beliaev's (1925) Professor Dowell's Head which depicts human subjectivity as an essentially embodied and distributive phenomenon and interrogates the Cartesian mind body dualism embedded in the dominant biomedical narratives.

First report on a European round robin for slope measuring profilers

Science.gov (United States)

Rommeveaux, Amparo; Thomasset, Muriel; Cocco, Daniele; Siewert, Frank

2005-08-01

In the framework of the European COoperation in the field of Scientific and Technical research action on "X-ray and Neutron Optic" (COST P7) and following the decision announced in the last International Workshop on Metrology for X-ray and neutron optic (Grenoble, April 2004), the metrology facilities of four European synchrotrons, Bessy, Elettra, ESRF and Soleil, have decided and started a program of instrument inter-comparison. Other synchrotrons are joining us and further interested Institutions are invited to participate in this open measurement comparison. The metrology instruments involved are different kinds of direct slope measurement devices, like the well known Long Trace Profiler (in house made or modified) and the Bessy N.O.M.. The Round Robin was started with 2 flat and 2 spherical mirrors (three made of Zerodur and one of fused silica) made available by Bessy and Elettra. A short radius of curvature spherical mirror of Silicon from SOLEIL was later added. First results show a very close match between the measurements of all facilities provided that the same procedures are followed. In particular, a special attention has to be given to the way of supporting the reference objects, as it will be illustrated by some examples. Another important issue is the characterization of the systematic errors of the different instruments and how they can be reduced or eliminated. The paper expects to open a discussion on the performances of different commercial and custom made or modified profilometers, and over standard procedures for calibration testing, including the definition of standard reference surfaces.

A Single Lab Test to Aid Pierre Robin Sequence Severity Diagnosis.

Science.gov (United States)

Fahradyan, Artur; Azadgoli, Beina; Tsuha, Michaela; Urata, Mark M; Francis, Stacey H

2018-01-01

The workup of patients with Pierre Robin sequence (PRS) consists of a physical examination, O 2 saturation, and polysomnography to determine the severity of respiratory obstruction and need for surgery. We suggest that capillary blood gas (CBG) may be a better physiologic representation of airway obstruction and should be routinely used in the management of patients with PRS. This is a multicenter study based on a retrospective review of medical records. The study was performed at tertiary care centers. Patients with PRS <1 year old underwent mandibular distraction osteogenesis. Using successful treatment outcome as a reference standard, receiver operating characteristic (ROC) curve was used to determine the accuracy of the diagnostic test and values for the best sensitivity and specificity to determine the need for surgical intervention. Of 73 patients, 48 had sporadic PRS, 23 had syndromes, 2 had micrognathia, not otherwise specified. Mandibular distraction osteogenesis was performed in 62 patients at a mean age of 39 days. The mean initial Apnea-Hypopnea Index (AHI) in nonsurgical versus surgical groups was 10 versus 31 ( P = .063), pH 7.41 versus 7.34 ( P = .003), pCO 2 43 versus 56 ( P < .001), and HCO 3 27 versus 30 ( P = .022). The ROC curve showed that pCO 2 of 49.5 has the best specificity (100%) and sensitivity (72.6%) profile in terms of need for definitive airway. A simple CBG heel stick may better predict the physiologic effects of obstructive apnea; therefore, it should be added to the algorithm of PRS workup.

Integration of Neurobiological and Computational Analyses of the Neural Network Essentials for Conditioned Taste Aversion

Science.gov (United States)

1991-04-29

cortex. Physiology a Behavior, IQ, 203-206, 1983. Garcia, J., Hankins, W. G., Coil, S. D. Koalas , men and other conditional gastronomes. In Food...Conditioned taste aversion and the pituitary-adrenal system. Behavioral Biology , 16, 413-424, 1976. Kalat, J. W., Rozin, P. "Learned safety" as a

Application of laser interferometry for assessment of surface residual stress by determination of stress-free state

International Nuclear Information System (INIS)

Kim, Dong Won; Kwon, Dong Il; Lee, Nak Kyu; Choi, Tae Hoon; Na, Kyoung Hoan

2003-01-01

The total relaxed stress in annealing and the thermal strain/stress were obtained from the identification of the residual stress-free state using Electronic Speckle Pattern Interferometry (ESPI). The residual stress fields in case of both single and film/substrate systems were modeled using the thermo-elastic theory and the relationship between relaxed stresses and displacements. We mapped the surface residual stress fields on the indented bulk Cu and the 0.5 μm Au film by ESPI. In indented Cu, the normal and shear residual stress are distributed over -1.7 GPa to 700 MPa and -800 GPa to 600 MPa respectively around the indented point and in deposited Au film on Si wafer, the tensile residual stress is uniformly distributed on the Au film from 500 MPa to 800 MPa. Also we measured the residual stress by the X-Ray Diffractometer (XRD) for the verification of above residual stress results by ESPI

Nondestructive Testing with Shearography

International Nuclear Information System (INIS)

Chang, Seog Weon

2001-01-01

Nondestructive testing(NDT) is one of the fundamental tools to improve the quality of commercial and industrial products. NDT is potentially a major application of interferometry. Interferometry(ESPI, Shearography, ect) has successfully been applied in various industrial environments such as high performance aircraft, home appliance, automotive, and laminates on engine structures, etc. Today's industry demands high performance components with toughest mechanical features and ultimate safety standards. Especially in automotive and aircraft industry the development process focuses on tailor-made design and solutions to meet customer specifications. To reconcile economy, ligh-weight construction has become a key issue. Many companies are looking for new advanced NDT techniques to archive cost efficiency over the limitations of classical methods. ESPI and shearography allow a rapid, full field and 3D-measurement without contact. In this paper recent applications of ESPI and shearography for NDT are described. Advanced features of classical techniques are specified and new applications in material and component testing are presented

Highly conserved non-coding elements on either side of SOX9 associated with Pierre Robin sequence.

Science.gov (United States)

Benko, Sabina; Fantes, Judy A; Amiel, Jeanne; Kleinjan, Dirk-Jan; Thomas, Sophie; Ramsay, Jacqueline; Jamshidi, Negar; Essafi, Abdelkader; Heaney, Simon; Gordon, Christopher T; McBride, David; Golzio, Christelle; Fisher, Malcolm; Perry, Paul; Abadie, Véronique; Ayuso, Carmen; Holder-Espinasse, Muriel; Kilpatrick, Nicky; Lees, Melissa M; Picard, Arnaud; Temple, I Karen; Thomas, Paul; Vazquez, Marie-Paule; Vekemans, Michel; Roest Crollius, Hugues; Hastie, Nicholas D; Munnich, Arnold; Etchevers, Heather C; Pelet, Anna; Farlie, Peter G; Fitzpatrick, David R; Lyonnet, Stanislas

2009-03-01

Pierre Robin sequence (PRS) is an important subgroup of cleft palate. We report several lines of evidence for the existence of a 17q24 locus underlying PRS, including linkage analysis results, a clustering of translocation breakpoints 1.06-1.23 Mb upstream of SOX9, and microdeletions both approximately 1.5 Mb centromeric and approximately 1.5 Mb telomeric of SOX9. We have also identified a heterozygous point mutation in an evolutionarily conserved region of DNA with in vitro and in vivo features of a developmental enhancer. This enhancer is centromeric to the breakpoint cluster and maps within one of the microdeletion regions. The mutation abrogates the in vitro enhancer function and alters binding of the transcription factor MSX1 as compared to the wild-type sequence. In the developing mouse mandible, the 3-Mb region bounded by the microdeletions shows a regionally specific chromatin decompaction in cells expressing Sox9. Some cases of PRS may thus result from developmental misexpression of SOX9 due to disruption of very-long-range cis-regulatory elements.

Surgical Management of Pierre Robin Sequence: Using Mandibular Distraction Osteogenesis to Address Hypoventilation and Failure to Thrive in Infancy.

Science.gov (United States)

Scott, Andrew R

2016-04-01

Mandibular hypoplasia may present in isolation or in the context of glossoptosis and a U-shaped, incomplete cleft palate. This latter triad is referred to as Pierre Robin sequence. Deleterious effects of micrognathia that may present during infancy are due primarily to glossoptosis or posterior displacement of the tongue. This tongue base prolapse may cause varying degrees of upper airway obstruction. A surgical option for management of tongue base airway obstruction secondary to mandibular hypoplasia is neonatal mandibular distraction osteogenesis. Herein, the author seeks to outline the benefits and limitations of early mandibular distraction osteogenesis as a way of managing airway obstruction and feeding difficulty in newborns with micrognathia. A description of the author's operative technique as well as potential complications and pitfalls will also be discussed. Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Age, sex and social influences on adult survival in the cooperatively breeding Karoo Scrub-robin

Science.gov (United States)

Lloyd, Penn; Martin, Thomas E.; Taylor, Andrew; Braae, Anne; Altwegg, Res

2016-01-01

Among cooperatively breeding species, helpers are hypothesised to increase the survival of breeders by reducing breeder workload in offspring care and increased group vigilance against predators. Furthermore, parental nepotism or other benefits of group living may provide a survival benefit to young that delay dispersal to help. We tested these hypotheses in the Karoo Scrub-robin (Cercotrichas coryphaeus), a long-lived, and facultative cooperatively breeding species in which male helpers make substantial contributions to the care of young. We found that annual breeder survival in the presence of helpers did not differ detectably from breeders without helpers or breeders that lost helpers. Furthermore, helpers did not gain a survival benefit from deferred breeding; apparent survival did not differ detectably between male helpers and male breeders followed from one year old. These results are consistent with other studies suggesting a lack of adult survival benefits among species where breeders do not substantially reduce workloads when helpers are present. They are also consistent with the hypothesis that males that delay dispersal make the ‘best of a bad job’ by helping on their natal territory to gain indirect fitness benefits when they are unable to obtain a territory vacancy nearby.

The effect of pyrazine odor on avoidance learning and memory in wild robins Erithacus rubecula

Directory of Open Access Journals (Sweden)

Emma C. SIDDALL, Nicola M. MARPLES

2011-04-01

Full Text Available Toxic insects advertise their defended state to potential predators using warning displays. Frequently these displays use cues through more than one sensory modality, and combine color, smell and sound to produce a multimodal warning display. Signalling through more than one sensory pathway may enhance the rate of avoidance learning, and the memorability of the learned avoidance. A common insect warning odor, pyrazine, has previously been shown to increase the rate of learned avoidance of unpalatable yellow prey by domestic chicks (Gallus gallus domesticus, and the odor also improved memory of this learned avoidance. However, to date no research has examined this response to pyrazine odor using wild birds under natural conditions. This study used wild robins (Erithacus rubecula to investigate whether wild birds avoided yellow baits that smelled of pyrazine more strongly than those presented with no odor. The results provide some evidence that pyrazine odor does increase the level of protection an aposematic insect gains from a wild avian predator, but that the effect of pyrazine on learned avoidance was much weaker than was found with domestic chicks [Current Zoology 57 (2: 208–214, 2011].

IAEA co-ordinated research program. 'Round Robin' on measuring the velocity of delayed hydride cracking (DHC)

International Nuclear Information System (INIS)

Grigoriev, V.; Jakobsson, R.

1999-09-01

The International Atomic Agency (IAEA) has initiated a new Co-ordinated Research Programme (CRP) on Hydrogen and hydride induced degradation of the mechanical and physical properties of Zirconium-based alloys. In the first phase of this CRP the methodology for measuring the velocity of Delayed Hydride Cracking (DHC) should be established and participating laboratories from about nine countries around the world carry out identical tests in 'round robin'. The objective of the present work is to establish at Studsvik laboratory the method of a constant load cracking test on unirradiated Zr-2.5Nb and attain a comparison of results between laboratories. Constant load tests are performed on specimens cut from unirradiated CANDU Zr-2.5Nb pressure tube and the rate of crack propagation is determined in each test. Pre-hydrided specimens for testing are supplied from the host laboratory. Six specimens have been tested for delayed hydride cracking (DHC) at 250 deg C. The axial crack growth velocities measured in the tests are within the interval of 8.62x10 -8 - 1.06x10 -7 m/s. The results obtained agree well with the earlier published data for similar materials and test conditions

Superradiant instabilities in the Kerr-mirror and Kerr-AdS black holes with Robin boundary conditions

Science.gov (United States)

Ferreira, Hugo R. C.; Herdeiro, Carlos A. R.

2018-04-01

It has been recently observed that a scalar field with Robin boundary conditions (RBCs) can trigger both a superradiant and a bulk instability for a Bañados-Teitelboim-Zanelli (BTZ) black hole (BH) [1]. To understand the generality and scrutinize the origin of this behavior, we consider here the superradiant instability of a Kerr BH confined either in a mirrorlike cavity or in anti-de Sitter (AdS) space, triggered also by a scalar field with RBCs. These boundary conditions are the most general ones that ensure the cavity/AdS space is an isolated system and include, as a particular case, the commonly considered Dirichlet boundary conditions (DBCs). Whereas the superradiant modes for some RBCs differ only mildly from the ones with DBCs, in both cases, we find that as we vary the RBCs the imaginary part of the frequency may attain arbitrarily large positive values. We interpret this growth as being sourced by a bulk instability of both confined geometries when certain RBCs are imposed to either the mirrorlike cavity or the AdS boundary, rather than by energy extraction from the BH, in analogy with the BTZ behavior.

EC static high-temperature leach test. Summary report of an European Community interlaboratory round robin

International Nuclear Information System (INIS)

Koennecke, R.; Kirsch, J.

1985-01-01

The results of an interlaboratory static high-temperature leach test conducted by the Commission of the European Communities in 1983 over a period of 9 months are compiled and statistically evaluated. A total of 12 laboratories - 10 from Member States of the EC and one from Finland and the USA - provided information concerning the test method and the analytical test results in the frame of a round robin test (RRT). All together these laboratories tested 366 waste from specimens of the borosilicate glass UK 209 containing simulated high-level radioactive waste. Leach tests were performed on the basis of the ''Document on the EC static high-temperature leach test method'' in autoclaves at leaching temperatures of 90 0 C, 110 0 C, 150 0 C, and 190 0 C over time periods of 3,7,14,28 and 56 days using dionized water as leachant. The resulting leachates were analysed for the elemental concentrations of Si,B,Sr,Nd and Cs by all laboratories and for the concentrations of the optional elements Na, Al,Ce,Mo,Cr,Fe,Li,Mg and Zn by some of the participating laboratories. Additionally, the F content of the blank leachates was analysed by all laboratories

Integrating single-point vibrometer and full-field electronic speckle pattern interferometer to evaluate a micro-speaker

Science.gov (United States)

Chang, Wen-Chi; Chen, Yu-Chi; Chien, Chih-Jen; Wang, An-Bang; Lee, Chih-Kung

2011-04-01

A testing system contains an advanced vibrometer/interferometer device (AVID) and a high-speed electronic speckle pattern interferometer (ESPI) was developed. AVID is a laser Doppler vibrometer that can be used to detect single-point linear and angular velocity with DC to 20 MHz bandwidth and with nanometer resolution. In swept frequency mode, frequency response from mHz to MHz of the structure of interest can be measured. The ESPI experimental setup can be used to measure full-field out-of-plane displacement. A 5-1 phase shifting method and a correlation algorithm were used to analyze the phase difference between the reference signal and the speckle signal scattered from the sample surface. In order to show the efficiency and effectiveness of AVID and ESPI, we designed a micro-speaker composed of a plate with fixed boundaries and two piezo-actuators attached to the sides of the plate. The AVID was used to measure the vibration of one of the piezo-actuators and the ESPI was adopted to measure the two-dimensional out-of-plane displacement of the plate. A microphone was used to measure the acoustic response created by the micro-speaker. Driving signal includes random signal, sinusoidal signal, amplitude modulated high-frequency carrier signal, etc. Angular response induced by amplitude modulated high-frequency carrier signal was found to be significantly narrower than the frequency responses created by other types of driving signals. The validity of our newly developed NDE system are detailed by comparing the relationship between the vibration signal of the micro-speaker and the acoustic field generated.

Handheld ESPI-speckle interferometer

DEFF Research Database (Denmark)

Skov Hansen, René

2003-01-01

. The interferometer presented here is a compact version of the set-up, Which is capable of measuring displacements of small objects, having either a specularly reflecting-or a diffusely scattering surface. The small optical set-up together with the use of the popular USB-communication for acquiring the images...... and controlling the phase of the reference wave constitutes a compact "handheld" instrument and eliminates the need for installing extra hardware, such as frame grabber and Digital to Analog converter, in the host computer....

Can telemetry data obviate the need for sleep studies in Pierre Robin Sequence?

Science.gov (United States)

Aaronson, Nicole Leigh; Jabbour, Noel

2017-09-01

This study looks to correlate telemetry data gathered on patients with Pierre Robin Sequence (PRS) with sleep study data. Strong correlation might allow obstructive sleep apnea (OSA) to be reasonably predicted without the need for sleep study. Charts from forty-six infants with PRS who presented to our children's hospital between 2005 and 2015 and received a polysomnogram (PSG) prior to surgical intervention were retrospectively reviewed. Correlations and scatterplots were used to compare average daily oxygen nadir, overall oxygen nadir, and average number of daily desaturations from telemetry data with apnea-hypopnea index (AHI) and oxygen nadir on sleep study. Results were also categorized into groups of AHI ≥ or sleep study data. Patients with O2 nadir below 80% on telemetry were not more likely to have an O2 nadir below 80% on sleep study. Patients with an average O2 nadir below 80% did show some correlation with having an AHI greater than 10 on sleep study but this relationship did not reach significance. Of 22 patients who did not have any desaturations on telemetry below 80%, 16 (73%) had an AHI >10 on sleep study. In the workup of infants with PRS, the index of suspicion is high for OSA. In our series, telemetry data was not useful in ruling out severe OSA. Thus our data do not support forgoing sleep study in patients with PRS and concern for OSA despite normal telemetry patterns. Copyright © 2017 Elsevier B.V. All rights reserved.

Accentuated Virchow-Robin spaces in the centrum semiovale in children with autistic disorder.

Science.gov (United States)

Taber, Katherine H; Shaw, J Bryant; Loveland, Katherine A; Pearson, Deborah A; Lane, David M; Hayman, L Anne

2004-01-01

The purpose of this study was to assess the incidence of abnormal Virchow-Robin (VR) spaces in children and adolescents with an autistic disorder (AD). An increased incidence of enlarged VR spaces in children has been reported in several developmental disorders. Sixteen children and adolescents (13 male, 3 female; mean age = 143.5 months; mean IQ = 95.1) with an AD, verified by use of standardized procedures (Autism Diagnostic Interview-Revised and Autism Diagnostic Observation Schedule-Revised), received cranial magnetic resonance (MR) imaging. Sixteen children and adolescents (13 male, 3 female; mean age = 160.7 months; mean IQ = 111.6) without AD, as determined using the same procedures, were scanned as a comparison group. The MR scans were performed using a 1.5-T scanner. Two T1-weighted spoiled GRASS sequences (0.7-mm coronal thin-slice, 0-mm gap; 1.5-mm sagittal, 0-mm gap) and a complementary T2-weighted fast spin echo sequence (1.5-mm, 0-mm gap) were obtained. A neuroradiologist and a neurobiologist without clinical information determined the incidence of normal, accentuated, and/or dilated VR spaces. Seven of 16 subjects with AD (approximately 44%) had dilated VR spaces in the centrum semiovale. No grossly abnormal spaces were present in the control subjects. Unusually large VR spaces are seen in at most 22% to 27% of MR scans in children with tension headaches and other psychiatric disorders, suggesting that the incidence of spaces of this type is greater in AD than in other abnormal populations. The origin and significance of this phenomenon remain unknown.

Percutaneous dilational tracheotomy for airway management in a newborn with Pierre-Robin syndrome and a glossopharyngeal web.

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Pirat, Arash; Candan, Selim; Unlükaplan, Aytekin; Kömürcü, Ozgür; Kuşlu, Selim; Arslan, Gülnaz

2012-04-01

Pierre-Robin syndrome (PRS) is often associated with difficulty in endotracheal intubation. We present the use of percutaneous dilational tracheotomy (PDT) for airway management of a newborn with PRS and a glossopharyngeal web. A 2-day-old term newborn with PRS and severe obstructive dyspnea was evaluated by the anesthesiology team for airway management. A direct laryngoscopy revealed a glossopharyngeal web extending from the base of the tongue to the posterior pharyngeal wall. The infant was spontaneously breathing through a 2 mm diameter fistula in the center of this web. It was decided that endotracheal intubation was impossible, and a PDT was planned. The trachea of the newborn was cannulated, using a 20 gauge peripheral venous catheter and a 0.71 mm guide wire was introduced through this catheter. Using 5 French, 7 French, 9 French, and 11 French central venous catheter kit dilators, staged tracheotomy stoma dilation was performed. By inserting a size 3.0 tracheotomy cannula, PDT was successfully completed in this newborn. This case describes the successful use of PDT for emergency airway management of a newborn with PRS and glossopharyngeal web.

Variation at innate immunity Toll-like receptor genes in a bottlenecked population of a New Zealand robin.

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Catherine E Grueber

Full Text Available Toll-like receptors (TLRs are an ancient family of genes encoding transmembrane proteins that bind pathogen-specific molecules and initiate both innate and adaptive aspects of the immune response. Our goal was to determine whether these genes show sufficient genetic diversity in a bottlenecked population to be a useful addition or alternative to the more commonly employed major histocompatibility complex (MHC genotyping in a conservation genetics context. We amplified all known avian TLR genes in a severely bottlenecked population of New Zealand's Stewart Island robin (Petroica australis rakiura, for which reduced microsatellite diversity was previously observed. We genotyped 17-24 birds from a reintroduced island population (including the 12 founders for nine genes, seven of which were polymorphic. We observed a total of 24 single-nucleotide polymorphisms overall, 15 of which were non-synonymous, representing up to five amino-acid variants at a locus. One locus (TLR1LB showed evidence of past directional selection. Results also confirmed a passerine duplication of TLR7. The levels of TLR diversity that we observe are sufficient to justify their further use in addressing conservation genetic questions, even in bottlenecked populations.

A randomized clinical trial of a new orthodontic appliance to improve upper airway obstruction in infants with Pierre Robin sequence.

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Buchenau, Wolfgang; Urschitz, Michael S; Sautermeister, Judit; Bacher, Margit; Herberts, Tina; Arand, Joerg; Poets, Christian F

2007-08-01

To test the hypothesis that a new orthodontic appliance with a velar extension that shifts the tongue anteriorly would reduce upper airway obstruction in infants with Pierre Robin sequence (PRS). Eleven infants with PRS (median age, 3 days) and an apnea index (AI) >3 were studied. The effect of the new appliance on the AI was compared with that of a conventional appliance without a velar extension by using a crossover study design with random allocation. Compared with baseline (mean AI, 13.8), there was a significant decrease in the AI with the new appliance (3.9; P value appliance (14.8; P = .842). Thus, the relative change in AI was -71% (95% CI, -84--49) for the new appliance and +8% (95% CI, -52-142) for the conventional appliance, which was significantly different (P = .004). No severe adverse effects were observed. This new orthodontic appliance appears to be safe and effective in reducing upper airway obstruction in infants with PRS.

Features of Virchow-Robin spaces in newly diagnosed multiple sclerosis patients

Energy Technology Data Exchange (ETDEWEB)

Etemadifar, Masoud [Department of Clinical and Biological Sciences, Division of Neurology, San Luigi Gonzaga School of Medicine, Orbassano (Torino), Turin (Italy); Department of Neurology, Isfahan University of Medical Sciences, Isfahan (Iran, Islamic Republic of); Isfahan Research Committee of Multiple Sclerosis (IRCOMS), Isfahan University of Medical Sciences, Isfahan (Iran, Islamic Republic of); Hekmatnia, Ali; Tayari, Nazila [Department of Radiology, Isfahan University of Medical Sciences, Isfahan (Iran, Islamic Republic of); Kazemi, Mojtaba [Department of Neurology, Isfahan University of Medical Sciences, Isfahan (Iran, Islamic Republic of); Ghazavi, Amirhossein [Department of Radiology, Isfahan University of Medical Sciences, Isfahan (Iran, Islamic Republic of); Akbari, Mojtaba [Department of Epidemiology and Statistics, Isfahan University of Medical Sciences, Isfahan (Iran, Islamic Republic of); Maghzi, Amir-Hadi, E-mail: maghzi@edc.mui.ac.ir [Isfahan Research Committee of Multiple Sclerosis (IRCOMS), Isfahan University of Medical Sciences, Isfahan (Iran, Islamic Republic of); Neuroimmunology Unit, Centre for Neuroscience and Trauma, Blizard Institute of Cell and Molecular Science, Barts and the London School of Medicine and Dentistry, London (United Kingdom); Isfahan Neurosciences Research Center, Isfahan University of Medical Sciences, Isfahan (Iran, Islamic Republic of)

2011-11-15

Background: Virchow-Robin spaces (VRSs) are perivascular pia-lined extensions of the subarachnoid space around the arteries and veins as they enter the brain parenchyma. These spaces are responsible for inflammatory processes within the brain. Objectives: This study was designed to shed more light on the location, size and shape of VRSs on 3 mm slice thickness, 1.5 Tesla MRI scans of newly diagnosed MS patients in Isfahan, Iran and compare the results with healthy age- and sex-matched controls. Methods: We evaluated MRI scans of 73 MS patients obtained within 3 months of MS onset and compared them with MRI scans from 73 age- and sex-matched healthy volunteers. Three mm section proton density, T2W and FLAIR MR images were obtained for all subjects. The location, size and shape of VRSs were compared between the two groups. Results: The total number of VRSs was significantly more in the MS group (p < 0.001). The distribution of VRSs were significantly more located in the high convexity areas in the MS group (p < 0.001), while there was no significant differences in other regions. The round shaped VRSs were significantly more detected on MRI scans of MS patients, and curvilinear shapes were significantly more frequently observed in healthy volunteers, however there were no significant differences for oval shaped VRSs between the two groups. The number of VRSs with the size over than 2 mm were significantly more observed in the MS groups compared to controls. We also observed some differences in the characteristics of VRSs between the genders in the MS group. Conclusion: The results of this study shed more light on the usefulness of VRSs as an MRI marker for the disease. In addition, according to our results VRSs might also have implication to determine the prognosis of the disease. However, larger studies with more advanced MRI techniques are required to confirm our results.

Features of Virchow-Robin spaces in newly diagnosed multiple sclerosis patients

International Nuclear Information System (INIS)

Etemadifar, Masoud; Hekmatnia, Ali; Tayari, Nazila; Kazemi, Mojtaba; Ghazavi, Amirhossein; Akbari, Mojtaba; Maghzi, Amir-Hadi

2011-01-01

Background: Virchow-Robin spaces (VRSs) are perivascular pia-lined extensions of the subarachnoid space around the arteries and veins as they enter the brain parenchyma. These spaces are responsible for inflammatory processes within the brain. Objectives: This study was designed to shed more light on the location, size and shape of VRSs on 3 mm slice thickness, 1.5 Tesla MRI scans of newly diagnosed MS patients in Isfahan, Iran and compare the results with healthy age- and sex-matched controls. Methods: We evaluated MRI scans of 73 MS patients obtained within 3 months of MS onset and compared them with MRI scans from 73 age- and sex-matched healthy volunteers. Three mm section proton density, T2W and FLAIR MR images were obtained for all subjects. The location, size and shape of VRSs were compared between the two groups. Results: The total number of VRSs was significantly more in the MS group (p < 0.001). The distribution of VRSs were significantly more located in the high convexity areas in the MS group (p < 0.001), while there was no significant differences in other regions. The round shaped VRSs were significantly more detected on MRI scans of MS patients, and curvilinear shapes were significantly more frequently observed in healthy volunteers, however there were no significant differences for oval shaped VRSs between the two groups. The number of VRSs with the size over than 2 mm were significantly more observed in the MS groups compared to controls. We also observed some differences in the characteristics of VRSs between the genders in the MS group. Conclusion: The results of this study shed more light on the usefulness of VRSs as an MRI marker for the disease. In addition, according to our results VRSs might also have implication to determine the prognosis of the disease. However, larger studies with more advanced MRI techniques are required to confirm our results.

The Second SeaWiFS HPLC Analysis Round-Robin Experiment (SeaHARRE-2)

Science.gov (United States)

2005-01-01

Eight international laboratories specializing in the determination of marine pigment concentrations using high performance liquid chromatography (HPLC) were intercompared using in situ samples and a variety of laboratory standards. The field samples were collected primarily from eutrophic waters, although mesotrophic waters were also sampled to create a dynamic range in chlorophyll concentration spanning approximately two orders of magnitude (0.3 25.8 mg m-3). The intercomparisons were used to establish the following: a) the uncertainties in quantitating individual pigments and higher-order variables (sums, ratios, and indices); b) an evaluation of spectrophotometric versus HPLC uncertainties in the determination of total chlorophyll a; and c) the reduction in uncertainties as a result of applying quality assurance (QA) procedures associated with extraction, separation, injection, degradation, detection, calibration, and reporting (particularly limits of detection and quantitation). In addition, the remote sensing requirements for the in situ determination of total chlorophyll a were investigated to determine whether or not the average uncertainty for this measurement is being satisfied. The culmination of the activity was a validation of the round-robin methodology plus the development of the requirements for validating an individual HPLC method. The validation process includes the measurements required to initially demonstrate a pigment is validated, and the measurements that must be made during sample analysis to confirm a method remains validated. The so-called performance-based metrics developed here describe a set of thresholds for a variety of easily-measured parameters with a corresponding set of performance categories. The aggregate set of performance parameters and categories establish a) the overall performance capability of the method, and b) whether or not the capability is consistent with the required accuracy objectives.

The Fourth SeaWiFS HPLC Analysis Round-Robin Experiment (SeaHARRE-4)

Science.gov (United States)

Hooker, Stanford B.; Thomas, Crystal S.; van Heukelem, Laurie; Schlueter, louise; Russ, Mary E.; Ras, Josephine; Claustre, Herve; Clementson, Lesley; Canuti, Elisabetta; Berthon, Jean-Francois;

Transport Properties of Bulk Thermoelectrics—An International Round-Robin Study, Part I: Seebeck Coefficient and Electrical Resistivity

Science.gov (United States)

Wang, Hsin; Porter, Wallace D.; Böttner, Harald; König, Jan; Chen, Lidong; Bai, Shengqiang; Tritt, Terry M.; Mayolet, Alex; Senawiratne, Jayantha; Smith, Charlene; Harris, Fred; Gilbert, Patricia; Sharp, Jeff W.; Lo, Jason; Kleinke, Holger; Kiss, Laszlo

2013-04-01

Recent research and development of high-temperature thermoelectric materials has demonstrated great potential for converting automobile exhaust heat directly into electricity. Thermoelectrics based on classic bismuth telluride have also started to impact the automotive industry by enhancing air-conditioning efficiency and integrated cabin climate control. In addition to engineering challenges of making reliable and efficient devices to withstand thermal and mechanical cycling, the remaining issues in thermoelectric power generation and refrigeration are mostly materials related. The dimensionless figure of merit, ZT, still needs to be improved from the current value of 1.0 to 1.5 to above 2.0 to be competitive with other alternative technologies. In the meantime, the thermoelectric community could greatly benefit from the development of international test standards, improved test methods, and better characterization tools. Internationally, thermoelectrics have been recognized by many countries as a key component for improving energy efficiency. The International Energy Agency (IEA) group under the Implementing Agreement for Advanced Materials for Transportation (AMT) identified thermoelectric materials as an important area in 2009. This paper is part I of the international round-robin testing of transport properties of bulk thermoelectrics. The main foci in part I are the measurement of two electronic transport properties: Seebeck coefficient and electrical resistivity.

A comprehensive scoring system in correlation with perioperative airway management for neonatal Pierre Robin Sequence.

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Ning Yin

Full Text Available To evaluate a comprehensive scoring system which combines clinical manifestations of Pierre Robin Sequence (PRS including severity of breathing difficulties, body weight and preoperative Cormack-Lehane grade, for its correlation with perioperative PRS airway management decision.Forty PRS children were retrospectively recruited after surgery. Specialists examined all subjects and scored for clinical manifestations (1´ - 4´, weight gain (1´- 4´, dyspnea scores (1´- 4´, and Cormack-Lehane grade (1´- 4´. The correlation of the integrated scores and the necessity of endotracheal intubation or laryngeal mask application were analyzed. In addition, the score correlation with postoperative dyspnea and/or low pulse oxygen saturation (SPO2 levels after extubation was determined.In our study every individual patient had a score from 0´ to 16´, while the higher in the numbers represented higher risk of breathing difficulty. All patients with comprehensive scores 13 points required a laryngeal mask assisted airway management and were considered to have difficult airways. Dyspnea after extubation and postoperative low SPO2 occurred among patients who scored over 10 points.In PRS patients, preoperative weight gaining status and severity of dyspnea in combination with Cormack-Lehane classification provide a scoring system that could help to optimize airway management decisions such as endotracheal intubation or laryngeal mask airway placement and has the potential to predict postoperative dyspnea or low SPO2 levels.

Assessing Fidelity to Suicide Reporting Guidelines in Canadian News Media: The Death of Robin Williams.

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Creed, Michael; Whitley, Rob

2017-05-01

Mindset is a short recently-published booklet funded by the Mental Health Commission of Canada outlining evidence-based guidelines and best practices for journalists writing about mental health and suicide. Our study aimed to assess fidelity to Mindset recommendations in Canadian newspaper reports of a recent celebrity suicide. A secondary aim is to identify common themes discussed in these newspaper articles. Articles about Robin Williams' suicide from major Canadian newspapers were gathered and coded for presence or absence of each of the 14 recommendations in the "Covering Suicide" section of Mindset. A threshold of 80% was set to test for high fidelity to the guidelines. A qualitative content analysis of the articles was also undertaken to discern common themes and social issues discussed in the articles. Fifty-five per cent of articles surpassed the 80% threshold for high fidelity, while 85% applied at least 70% of the recommendations. The recommendation most commonly overlooked was "Do tell others considering suicide how they can get help," which was absent in 73% of articles. The most common themes discussed were those of addictions and stigma. The news articles generally follow the evidence-based guidelines regarding the reporting of suicide set out in Mindset. This is a welcome development. Future research should continue to examine reporting of suicide to assess for further improvements, while also examining the wider impact of Mindset on the reporting of mental illness per se.

Robin Ganellin gives his views on medicinal chemistry and drug discovery. Interview by Stephen L. Carney.

Science.gov (United States)

Ganellin, C Robin

2004-02-15

Robin Ganellin was born in East London and studied chemistry at Queen Mary College, London, receiving a PhD in 1958 under Professor Michael Dewar for his research on tropylium chemistry. He joined Smith Kline & French Laboratories (SK&F) in the UK in 1958 and was one of the co-inventors of the revolutionary drug cimetidine (Tagamet(R)) He subsequently became Vice-President for Research at the company's Welwyn facility. In 1986 he was awarded a DSc from London University for his work on the medicinal chemistry of drugs acting at histamine receptors and was also made a Fellow of the Royal Society and appointed to the SK&F Chair of Medicinal Chemistry at University College London, where he is now Emeritus Professor of Medicinal Chemistry. Professor Ganellin has been honoured extensively, including such awards as the Royal Society of Chemistry Award for Medicinal Chemistry, their Tilden Medal and Lectureship and their Adrien Albert Medal and Lectureship, Le Prix Charles Mentzer de France, the ACS Division of Medicinal Chemistry Award, the Society of Chemical Industry Messel Medal and the Society for Drug Research Award for Drug Discovery. He is a past Chairman of the Society for Drug Research, was President of the Medicinal Chemistry Section of IUPAC, and is currently Chairman of the IUPAC Subcommittee on Medicinal Chemistry and Drug Development.

Piezosurgery: A new and safe technique for distraction osteogenesis in Pierre Robin sequence review of the literature and case report

Science.gov (United States)

Galié, Manlio; Candotto, Valentina; Elia, Giovanni; Clauser, Luigi C.

2014-01-01

Introduction Pierre Robin sequence (PRS) is characterized by microgenia and retrognathia. Cleft palate and glossoptosis are frequently associated with airway obstruction and difficulty in swallowing. Distraction osteogenesis with micro-distractors has recently been considered as a surgical option during the neonatal age. Case presentation A 6-week-old female with PRS underwent mandibular lengthening in neonatal age. Mandibular osteotomies were performed with the piezoelectric scalpel. Discussion Piezosurgery represents an innovative technique as it offers the maxillofacial surgeon the opportunity to make precise bone cuts without damaging the soft tissue, minimizing the invasiveness of the surgical procedure, and the opportunity of working in a field which is almost totally blood free. Conclusion The use of a piezoelectric device to perform this kind of surgery provides clinical and surgical results which would be difficult with traditional instruments, not only for the patient’s benefit but also for the surgeon’s. Preservation of the original bony structure, especially of the cancellous bone, will benefit the bone healing process due to its high estrogenic potential. PMID:25555147

Deficit Round Robin with Fragmentation Scheduling to Achieve Generalized Weighted Fairness for Resource Allocation in IEEE 802.16e Mobile WiMAX Networks

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Chakchai So-In

2010-10-01

Full Text Available Deficit Round Robin (DRR is a fair packet-based scheduling discipline commonly used in wired networks where link capacities do not change with time. However, in wireless networks, especially wireless broadband networks, i.e., IEEE 802.16e Mobile WiMAX, there are two main considerations violate the packet-based service concept for DRR. First, the resources are allocated per Mobile WiMAX frame. To achieve full frame utilization, Mobile WiMAX allows packets to be fragmented. Second, due to a high variation in wireless channel conditions, the link/channel capacity can change over time and location. Therefore, we introduce a Deficit Round Robin with Fragmentation (DRRF to allocate resources per Mobile WiMAX frame in a fair manner by allowing for varying link capacity and for transmitting fragmented packets. Similar to DRR and Generalized Processor Sharing (GPS, DRRF achieves perfect fairness. DRRF results in a higher throughput than DRR (80% improvement while causing less overhead than GPS (8 times less than GPS. In addition, in Mobile WiMAX, the quality of service (QoS offered by service providers is associated with the price paid. This is similar to a cellular phone system; the users may be required to pay air-time charges. Hence, we have also formalized a Generalized Weighted Fairness (GWF criterion which equalizes a weighted sum of service time units or slots, called temporal fairness, and transmitted bytes, called throughput fairness, for customers who are located in a poor channel condition or at a further distance versus for those who are near the base stations, or have a good channel condition. We use DRRF to demonstrate the application of GWF. These fairness criteria are used to satisfy basic requirements for resource allocation, especially for non real-time traffic. Therefore, we also extend DRRF to support other QoS requirements, such as minimum reserved traffic rate, maximum sustained traffic rate, and traffic priority. For real

Mental Health-Related Outcomes of Robin Williams' Death: The Role of Parasocial Relations and Media Exposure in Stigma, Help-Seeking, and Outreach.

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Hoffner, Cynthia A; Cohen, Elizabeth L

2017-10-19

This study explores responses to the death of actor/comedian Robin Williams, focusing on the role of celebrity attachment and exposure to media coverage following his suicide. A total of 350 respondents recruited on Mechanical Turk completed an online survey. Participants who had a stronger parasocial relationship with Williams reported lower social distance from people with depression, greater willingness to seek treatment for depression, and more frequent outreach to other people with depression or suicidal thoughts following his death. Exposure to media coverage of suicide/depression - both informational and stigmatizing - was associated with more frequent outreach to others, but only informational coverage was related to greater willingness to seek treatment. Stigmatizing media exposure was related to greater depression stereotypes. Seeing more media stories celebrating Williams' life and career was associated with reduced depression stigma but also with less willingness to seek treatment for depression and less outreach to others. Implications of the findings for media and mental health are discussed.

IAEA co-ordinated research program. 'Round Robin' on measuring the velocity of delayed hydride cracking (DHC)

Energy Technology Data Exchange (ETDEWEB)

Grigoriev, V.; Jakobsson, R. [Studsvik Material AB, Nykoeping (Sweden)

1999-09-01

The International Atomic Agency (IAEA) has initiated a new Co-ordinated Research Programme (CRP) on Hydrogen and hydride induced degradation of the mechanical and physical properties of Zirconium-based alloys. In the first phase of this CRP the methodology for measuring the velocity of Delayed Hydride Cracking (DHC) should be established and participating laboratories from about nine countries around the world carry out identical tests in 'round robin'. The objective of the present work is to establish at Studsvik laboratory the method of a constant load cracking test on unirradiated Zr-2.5Nb and attain a comparison of results between laboratories. Constant load tests are performed on specimens cut from unirradiated CANDU Zr-2.5Nb pressure tube and the rate of crack propagation is determined in each test. Pre-hydrided specimens for testing are supplied from the host laboratory. Six specimens have been tested for delayed hydride cracking (DHC) at 250 deg C. The axial crack growth velocities measured in the tests are within the interval of 8.62x10{sup -8} - 1.06x10{sup -7} m/s. The results obtained agree well with the earlier published data for similar materials and test conditions.

Validation and inter-comparison of surface elevation changes derived from altimetry over the Jakobshavn Isbræ drainage basin, Greenland – Round Robin results from ESA's Ice_Sheets_CCI (ID #EGU2013-6007)

DEFF Research Database (Denmark)

Fredenslund Levinsen, Joanna; Khvorostovsky, Kirill; Ticconi, Francesca

elevation changes (SEC), surface velocities, calving front locations, and grounding line locations. This work focuses on SEC, and the goal is to develop the best routine for estimating this by means of radar altimetry. In order to find the most optimal approach we have completed a Round Robin experiment (RR......In order to ensure long-term climate records, ESA has launched the Climate Change Initiative (ESA CCI), which puts focus on 13 different Essential Climate Variables, one of them being Ice Sheets. In this program, four selected key parameters will be determined for the Greenland Ice Sheet: Surface...

Robin Hood Gardens: una interpretación desde el pensamiento topográfico de los Limites Romani

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David Casino

2014-02-01

Full Text Available El estrecho vínculo con el territorio que poseían los Limites Romani demostraba, según Alison Smithson, un profundo “pensamiento topográfico”: un compromiso con el lugar basado en un posicionamiento estratégico en el paisaje, una constante adaptación a las condiciones cambiantes del terreno y un intenso modelado de la superficie del suelo. Aspectos fundamentales de estas fortificaciones fronterizas romanas cuya esencia podemos identificar en algunos proyectos clave de Alison y Peter Smithson. Proyectos enraizados que centraban su atención en el plano del suelo, en articular el contacto de los edificios con el terreno y en configurar sus espacios exteriores. Entre estos, los Robin Hood Gardens mostraban de un modo elocuente la fascinación que sentían los Smithson por la condición topográfica de aquellas obras de ingeniería romana. Un interés que les llevaría a explorar conceptos como “límite” y “protección”, así como a recuperar el conjunto de alteraciones topográficas defensivas convirtiéndolas —despojadas de su naturaleza militar— en operaciones clave para radicar en el lugar (del latín radicare: echar raíces, enraizar: una sofisticada apropiación que gravitó “de la defensa al enraizamiento”

Procedure and results of a systematic comparative round robin estimation of the uncertainties of emission measurements in Germany and Switzerland during the summer and fall 1998

Energy Technology Data Exchange (ETDEWEB)

Morkowski, J.S.

2000-08-01

During summer and fall 1998, 75 sample takers and 20 employees of laboratories of 26 institutes measuring emissions in Germany and Switzerland estimated the uncertainty of measuring results of 5 selected DVI-standard emission measuring methods. The applied method of systematic comparative estimation showed that the estimated total uncertainties U{sub T} of the investigated measuring methods range between 12% and 21%. The results of the round robin estimation for one of the methods (dust measuring 2066 Part 7) with U{sub T}=15.4% are equal to those of the system for simulation of emissions (HLfU Kassel) with 15.5%. This confirms the expectation of the initiators of the project that the systematic comparative estimation is useful for the characterization of test methods and hence for the validation of methods. (orig.)

The Round robin test of the PISC-2 programme: plates and ultrasonic procedures used PISC 2 report N.2. Final issue

International Nuclear Information System (INIS)

1986-09-01

Ultrasonic testing is widely used for detecting, locating and sizing defects in primary circuit elements at various stages of plant life. The successive PISC projects have together made up a most notable sustained international effort to assess the effectiveness of these inspection techniques. The Plate Inspection Steering Committee (PISC-I) programme (1976-1980) was intended to establish the capabilities of manual ultrasonic procedure based on the 1974 ASME Code Section XI Procedure. The Programme for the Inspection of Steel Components (PISC-II, 1981-1986) constitutes a broader based evaluation of the best performance obtainable by modern ultrasonic techniques under optimal conditions. The present paper is the second in a series of reports currently being issued which describe the results of the PISC-II studies. Included are descriptions of the four round robin test plates and of the ultrasonic procedures applied to them by the participating inspection teams. The report also lists the participating organisations and gives the time schedule of the tests and an indication of the costs incurred

Postulated Role of Vasoactive Neuropeptide-Related Immunopathology of the Blood Brain Barrier and Virchow-Robin Spaces in the Aetiology of Neurological-Related Conditions

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D. R. Staines

2008-01-01

Full Text Available Vasoactive neuropeptides (VNs such as pituitary adenylate cyclase-activating polypeptide (PACAP and vasoactive intestinal peptide (VIP have critical roles as neurotransmitters, vasodilators including perfusion and hypoxia regulators, as well as immune and nociception modulators. They have key roles in blood vessels in the central nervous system (CNS including maintaining functional integrity of the blood brain barrier (BBB and blood spinal barrier (BSB. VNs are potent activators of adenylate cyclase and thus also have a key role in cyclic AMP production affecting regulatory T cell and other immune functions. Virchow-Robin spaces (VRSs are perivascular compartments surrounding small vessels within the CNS and contain VNs. Autoimmunity of VNs or VN receptors may affect BBB and VRS function and, therefore, may contribute to the aetiology of neurological-related conditions including multiple sclerosis, Parkinson's disease, and amyotrophic lateral sclerosis. VN autoimmunity will likely affect CNS and immunological homeostasis. Various pharmacological and immunological treatments including phosphodiesterase inhibitors and plasmapheresis may be indicated.

Low self-esteem prospectively predicts depression in the transition to young adulthood: A replication of Orth, Robins, and Roberts (2008).

Science.gov (United States)

Rieger, Sven; Göllner, Richard; Trautwein, Ulrich; Roberts, Brent W

2016-01-01

The present study is a close replication of the work of Orth, Robins, and Roberts (2008). Orth et al. (2008) tested three theoretical models of the relation between self-esteem and depression--the vulnerability model, the scar model, and the common factor model--using longitudinal, cross-lagged panel designs. The authors concluded that depression and self-esteem were not the same construct (contrary to the common-factor model), and furthermore, the results were clearly in line with the vulnerability model and not with the scar model (low self-esteem predicts subsequent levels of depression and not vice versa). In addition, the results held for both men and women. To conduct a very close replication of the work of Orth et al. (2008), we used data from another large longitudinal study (N = 2,512), which is highly similar in study design and that contains the same measures (self-esteem and depression). The present study replicated the results of the Orth et al. (2008) study in a notable manner, in regard to the comparability of the coefficients, and therefore, corroborates the vulnerability model (and not the scar- or the common-factor model). (c) 2016 APA, all rights reserved).

Reliability of case definitions for public health surveillance assessed by Round-Robin test methodology

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Claus Hermann

2006-05-01

Full Text Available Abstract Background Case definitions have been recognized to be important elements of public health surveillance systems. They are to assure comparability and consistency of surveillance data and have crucial impact on the sensitivity and the positive predictive value of a surveillance system. The reliability of case definitions has rarely been investigated systematically. Methods We conducted a Round-Robin test by asking all 425 local health departments (LHD and the 16 state health departments (SHD in Germany to classify a selection of 68 case examples using case definitions. By multivariate analysis we investigated factors linked to classification agreement with a gold standard, which was defined by an expert panel. Results A total of 7870 classifications were done by 396 LHD (93% and all SHD. Reporting sensitivity was 90.0%, positive predictive value 76.6%. Polio case examples had the lowest reporting precision, salmonellosis case examples the highest (OR = 0.008; CI: 0.005–0.013. Case definitions with a check-list format of clinical criteria resulted in higher reporting precision than case definitions with a narrative description (OR = 3.08; CI: 2.47–3.83. Reporting precision was higher among SHD compared to LHD (OR = 1.52; CI: 1.14–2.02. Conclusion Our findings led to a systematic revision of the German case definitions and build the basis for general recommendations for the creation of case definitions. These include, among others, that testable yes/no criteria in a check-list format is likely to improve reliability, and that software used for data transmission should be designed in strict accordance with the case definitions. The findings of this study are largely applicable to case definitions in many other countries or international networks as they share the same structural and editorial characteristics of the case definitions evaluated in this study before their revision.

Clinical Factors Associated with the Non-Operative Airway Management of Patients with Robin Sequence

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Frank P. Albino

2016-11-01

Full Text Available BackgroundThe indications for surgical airway management in patients with Robin sequence (RS and severe airway obstruction have not been well defined. While certain patients with RS clearly require surgical airway intervention and other patients just as clearly can be managed with conservative measures alone, a significant proportion of patients with RS present with a more confusing and ambiguous clinical course. The purpose of this study was to describe the clinical features and objective findings of patients with RS whose airways were successfully managed without surgical intervention.MethodsThe authors retrospectively reviewed the medical charts of infants with RS evaluated for potential surgical airway management between 1994 and 2014. Patients who were successfully managed without surgical intervention were included. Patient demographics, nutritional and respiratory status, laboratory values, and polysomnography (PSG findings were recorded.ResultsThirty-two infants met the inclusion criteria. The average hospital stay was 16.8 days (range, 5–70 days. Oxygen desaturation (<70% by pulse oximetry occurred in the majority of patients and was managed with temporary oxygen supplementation by nasal cannula (59% or endotracheal intubation (31%. Seventy-five percent of patients required a temporary nasogastric tube for nutritional support, and a gastrostomy tube placed was placed in 9%. All patients continued to gain weight following the implementation of these conservative measures. PSG data (n=26 demonstrated mild to moderate obstruction, a mean apneahypopnea index (AHI of 19.2±5.3 events/hour, and an oxygen saturation level <90% during only 4% of the total sleep time.ConclusionsNonsurgical airway management was successful in patients who demonstrated consistent weight gain and mild to moderate obstruction on PSG, with a mean AHI of <20 events/hour.

A de novo 1.58 Mb deletion, including MAP2K6 and mapping 1.28 Mb upstream to SOX9, identified in a patient with Pierre Robin sequence and osteopenia with multiple fractures.

Science.gov (United States)

Smyk, Marta; Roeder, Elizabeth; Cheung, Sau Wai; Szafranski, Przemyslaw; Stankiewicz, Paweł

2015-08-01

Defects of long-range regulatory elements of dosage-sensitive genes represent an under-recognized mechanism underlying genetic diseases. Haploinsufficiency of SOX9, the gene essential for development of testes and differentiation of chondrocytes, results in campomelic dysplasia, a skeletal malformation syndrome often associated with sex reversal. Chromosomal rearrangements with breakpoints mapping up to 1.6 Mb up- and downstream to SOX9, and disrupting its distant cis-regulatory elements, have been described in patients with milder forms of campomelic dysplasia, Pierre Robin sequence, and sex reversal. We present an ∼1.58 Mb deletion mapping ∼1.28 Mb upstream to SOX9 that encompasses its putative long-range cis-regulatory element(s) and MAP2K6 in a patient with Pierre Robin sequence and osteopenia with multiple fractures. Low bone mass panel testing using massively parallel sequencing of 23 nuclear genes, including COL1A1 and COL1A2 was negative. Based on the previous mouse model of Map2k6, suggesting that Sox9 is likely a downstream target of the p38 MAPK pathway, and our previous chromosome conformation capture-on-chip (4C) data showing potential interactions between SOX9 promoter and MAP2K6, we hypothesize that deletion of MAP2K6 might have affected SOX9 expression and contributed to our patient's phenotype. © 2015 Wiley Periodicals, Inc.

Surveying the Dynamic Radio Sky with the Long Wavelength Demonstrator Array

Science.gov (United States)

2010-10-01

radio wavelengths, there are well-known classes of transients, such as the Sun and ra- dio pulsars , as well as a long history of observ- ing transients...Rupen et al. 2002). Fur- ther, a series of observations and discoveries over the past decade have emphasized that the radio sky may be quite dynamic...Bailes 2010); intense giant pulses have been detected from the Crab pulsar (Hankins et al. 2003); and several as-yet unidentified radio transients have

Solid fuels - A round robin test of solid residual products from heating plants. Fasta braenslen - cirkelanalys av fasta restprodukter fraan foerbraenningsanlaeggningar

Energy Technology Data Exchange (ETDEWEB)

Burwall, J; Samuelsson, R [Sveriges Lanbruksuniversitet, Enheten foer Biomassa, Energi- och Fibergroedor, Umeaa (Sweden)

1992-03-01

A round robin test, where six ashes (three coal ashes and three bioashes) were analyzed with respect to 'fuelspecific' parameters, major and minor elements and trace elements, has been carried out. Thirteen laboratories from Sweden, Finland, Denmark and Norway participated and the purpose of the investigation was to compare and evaluate common methods of analysis for ashes. The standard deviation of the used methods was compared to the precision calculated from the reported reproducability in corresponding standard methods for fuels. The results show that, without taking the significant outliers into account, the precision of the analysis of moisture content, hydrogen, nitrogen, sulfur and the predominant part of major and minor elements was of the order of the corresponding analysis for fuels. The analysis of carbon and calorific value showed a variation somewhat higher than that for fuel analysis, while the results for volatile matter and the tracer elements were considerably less precise. The result for the amount of unburned matter showed significant groupings, not only between the ashes but also between the laboratories. The groupings were explained mainly by the different experimental parameters used during the ashing step. (au) (5 refs., 10 figs., 38 tabs.).

Solid fuels - A round robin test of solid residual products from heating plants; Fasta braenslen - cirkelanalys av fasta restprodukter fraan foerbraenningsanlaeggningar

Energy Technology Data Exchange (ETDEWEB)

Burwall, J; Samuelsson, R [Sveriges Lanbruksuniversitet, Enheten foer Biomassa, Energi- och Fibergroedor, Umeaa (Sweden)

1992-03-01

A round robin test, where six ashes (three coal ashes and three bioashes) were analyzed with respect to `fuelspecific` parameters, major and minor elements and trace elements, has been carried out. Thirteen laboratories from Sweden, Finland, Denmark and Norway participated and the purpose of the investigation was to compare and evaluate common methods of analysis for ashes. The standard deviation of the used methods was compared to the precision calculated from the reported reproducability in corresponding standard methods for fuels. The results show that, without taking the significant outliers into account, the precision of the analysis of moisture content, hydrogen, nitrogen, sulfur and the predominant part of major and minor elements was of the order of the corresponding analysis for fuels. The analysis of carbon and calorific value showed a variation somewhat higher than that for fuel analysis, while the results for volatile matter and the tracer elements were considerably less precise. The result for the amount of unburned matter showed significant groupings, not only between the ashes but also between the laboratories. The groupings were explained mainly by the different experimental parameters used during the ashing step. (au) (5 refs., 10 figs., 38 tabs.).

Electronic speckle pattern interferometry observation of brick–mortar interface behaviour under compression

NARCIS (Netherlands)

Vermeltfoort, A.T.; Martens, D.R.W; Zijl, van G.P.A.G.

2007-01-01

The brick–mortar interaction is important in the mechanical behaviour of masonry. It affects the load transfer considerably, as shown by detailed deformation measurements taken using electronic speckle pattern interferometry (ESPI), a laser speckle interference technique. A companion paper [Canadian

A pragmatic approach to infants with Robin sequence: a retrospective cohort study and presence of a treatment algorithm.

Science.gov (United States)

Paes, Emma C; van Nunen, Daan P F; Speleman, Lucienne; Muradin, Marvick S M; Smarius, Bram; Kon, Moshe; Mink van der Molen, Aebele B; van der Molen, Aebele B Mink; Niers, Titia L E M; Veldhoen, Esther S; Breugem, Corstiaan C

2015-11-01

Initial approaches to and treatments of infants with Robin sequence (RS) is diverse and inconsistent. The care of these sometimes critically ill infants involves many different medical specialties, which can make the decision process complex and difficult. To optimize the care of infants with RS, we present our institution's approach and a review of the current literature. A retrospective cohort study was conducted among 75 infants diagnosed with RS and managed at our institution in the 1996-2012 period. Additionally, the conducted treatment regimen in this paper was discussed with recent literature describing the approach of infants with RS. Forty-four infants (59%) were found to have been treated conservatively. A significant larger proportion of nonisolated RS infants than isolated RS infants needed surgical intervention (53 vs. 25%, p = .014). A mandibular distraction was conducted in 24% (n = 18) of cases, a tracheotomy in 9% (n = 7), and a tongue-lip adhesion in 8% (n = 6). Seventy-seven percent of all infants had received temporary nasogastric tube feeding. The literature review of 31 studies showed that initial examinations and the indications to perform a surgical intervention varied and were often not clearly described. RS is a heterogenic group with a wide spectrum of associated anomalies. As a result, the decisional process is challenging, and a multidisciplinary approach to treatment is desirable. Current treatment options in literature vary, and a more uniform approach is recommended. We provide a comprehensive and pragmatic approach to the analysis and treatment of infants with RS, which could serve as useful guidance in other clinics.

Mr. Carmel Vernia, Chief Scientist, Ministry of Industry and Trade, Israel

CERN Multimedia

Patrice Loïez

2000-01-01

signing the Guest Book with M. Robin, Director of the Administration Photo 01: with Mr. M. Robin, Director of Administration Photo 03: signing the Guest Book with M. Robin, Director of the Administration

Adenohypophyseal function in dogs with primary hypothyroidism and non-thyroidal illness

NARCIS (Netherlands)

Diaz-Espineira, M.M.|info:eu-repo/dai/nl/311389368; Mol, J.A.|info:eu-repo/dai/nl/070918775; Rijnberk, A.; Kooistra, H.S.|info:eu-repo/dai/nl/205285864

2009-01-01

J Vet Intern Med. 2009 Jan-Feb;23(1):100-7. Adenohypophyseal function in dogs with primary hypothyroidism and nonthyroidal illness. Diaz-Espiñeira MM, Mol JA, Rijnberk A, Kooistra HS. Department of Clinical Sciences of Companion Animals, Utrecht University, The Netherlands. BACKGROUND: A recent

Specific Language Impairment and Executive Functioning: Parent and Teacher Ratings of Behavior

Science.gov (United States)

Wittke, Kacie; Spaulding, Tammie J.; Schechtman, Calli J.

2013-01-01

Purpose: The current study used the Behavior Rating Inventory of Executive Function--Preschool Version (BRIEF-P; Gioia, Espy, & Isquith, 2003), a rating scale designed to investigate executive behaviors in everyday activities, to examine the executive functioning of preschool children with specific language impairment (SLI) relative to their…

Yearbook on space policy 2015 access to space and the evolution of space activities

CERN Document Server

Baranes, Blandina; Hulsroj, Peter; Lahcen, Arne

2017-01-01

The Yearbook on Space Policy, edited by the European Space Policy Institute (ESPI), is the reference publication analysing space policy developments. Each year it presents issues and trends in space policy and the space sector as a whole. Its scope is global and its perspective is European. The Yearbook also links space policy with other policy areas. It highlights specific events and issues, and provides useful insights, data and information on space activities. The first part of the Yearbook sets out a comprehensive overview of the economic, political, technological and institutional trends that have affected space activities. The second part of the Yearbook offers a more analytical perspective on the yearly ESPI theme and consists of external contributions written by professionals with diverse backgrounds and areas of expertise. The third part of the Yearbook carries forward the character of the Yearbook as an archive of space activities. The Yearbook is designed for government decision-makers and agencies...

Development of Speckle Interferometry Algorithm and System

International Nuclear Information System (INIS)

Shamsir, A. A. M.; Jafri, M. Z. M.; Lim, H. S.

2011-01-01

Electronic speckle pattern interferometry (ESPI) method is a wholefield, non destructive measurement method widely used in the industries such as detection of defects on metal bodies, detection of defects in intergrated circuits in digital electronics components and in the preservation of priceless artwork. In this research field, this method is widely used to develop algorithms and to develop a new laboratory setup for implementing the speckle pattern interferometry. In speckle interferometry, an optically rough test surface is illuminated with an expanded laser beam creating a laser speckle pattern in the space surrounding the illuminated region. The speckle pattern is optically mixed with a second coherent light field that is either another speckle pattern or a smooth light field. This produces an interferometric speckle pattern that will be detected by sensor to count the change of the speckle pattern due to force given. In this project, an experimental setup of ESPI is proposed to analyze a stainless steel plate using 632.8 nm (red) wavelength of lights.

Predição da composição corporal e da carcaça a partir da seção entre a 9ª e 11ª costelas em bovinos Nelore Predicting body and carcass composition using the section between 9th and 11th ribs in Nellore cattle

Directory of Open Access Journals (Sweden)

Marcos Inácio Marcondes

2009-08-01

Full Text Available Objetivou-se avaliar as equações de Hankins & Howe para estimação da composição física da carcaça e as de Paulino para estimação da composição de macrominerais no corpo vazio de bovinos Nelore. Foram utilizados nove machos castrados, nove machos não-castrados e nove fêmeas. Três animais de cada classe foram abatidos ao início do experimento como referência. Os 18 animais remanescentes foram alimentados durante 112 dias com uma ração com 12,5% de proteína bruta, e concentrado, fornecido na proporção de 1,00 ou 1,25% do PV, e abatidos ao final para determinação da composição corporal. As composições física e química foram determinadas em uma amostra entre a 9ª e 11ª costelas (seção HH da meia-carcaça esquerda e na meia-carcaça direita inteira, a qual foi totalmente dissecada. A seção HH não possibilitou estimar corretamente a composição física de nenhum dos componentes da carcaça, e apenas a equação proposta para cálcio foi eficiente para estimar a porcentagem de cálcio no corpo vazio. Propõe-se o uso de novas equações para estimar o conteúdo corporal dos macrominerais a partir de sua concentração na seção HH. As equações de Hankins & Howe não estimam corretamente a composição física da carcaça de bovinos Nelore, no entanto, é possível estimar a composição de macrominerais no corpo vazio de Nelore a partir da seção HH.The objective of this study was to evaluate the Hankins and Howe equations, to estimate the carcass physical composition, and the Paulino equations, to estimate the empty body weight macromineral composition of Nellore cattle. Twenty seven Nellore animls (9 bulls, 9 steers and 9 heifers were used, and nine animals (three of each gender were slaughtered at the beginning and formed the reference group. The 18 remaining animals (6 of each gender were allotted in two levels of concentrate offer (1.0% and 1.25% live weight and were fed over 112 days. At the end of the

Structural and functional characterization of cleavage and inactivation of human serine protease inhibitors by the bacterial SPATE protease EspPα from enterohemorrhagic E. coli.

Directory of Open Access Journals (Sweden)

André Weiss

Full Text Available EspPα and EspI are serine protease autotransporters found in enterohemorrhagic Escherichia coli. They both belong to the SPATE autotransporter family and are believed to contribute to pathogenicity via proteolytic cleavage and inactivation of different key host proteins during infection. Here, we describe the specific cleavage and functional inactivation of serine protease inhibitors (serpins by EspPα and compare this activity with the related SPATE EspI. Serpins are structurally related proteins that regulate vital protease cascades, such as blood coagulation and inflammatory host response. For the rapid determination of serpin cleavage sites, we applied direct MALDI-TOF-MS or ESI-FTMS analysis of coincubations of serpins and SPATE proteases and confirmed observed cleavage positions using in-gel-digest of SDS-PAGE-separated degradation products. Activities of both serpin and SPATE protease were assessed in a newly developed photometrical assay using chromogenic peptide substrates. EspPα cleaved the serpins α1-protease inhibitor (α1-PI, α1-antichymotrypsin, angiotensinogen, and α2-antiplasmin. Serpin cleavage led to loss of inhibitory function as demonstrated for α1-PI while EspPα activity was not affected. Notably, EspPα showed pronounced specificity and cleaved procoagulatory serpins such as α2-antiplasmin while the anticoagulatory antithrombin III was not affected. Together with recently published research, this underlines the interference of EspPα with hemostasis or inflammatory responses during infection, while the observed interaction of EspI with serpins is likely to be not physiologically relevant. EspPα-mediated serpin cleavage occurred always in flexible loops, indicating that this structural motif might be required for substrate recognition.

RILEM technical committee 195-DTD recommendation for test methods for AD and TD of early age concrete Round Robin documentation report : program, test results and statistical evaluation

CERN Document Server

Bjøntegaard, Øyvind; Krauss, Matias; Budelmann, Harald

2015-01-01

This report presents the Round-Robin (RR) program and test results including a statistical evaluation of the RILEM TC195-DTD committee named “Recommendation for test methods for autogenous deformation (AD) and thermal dilation (TD) of early age concrete”. The task of the committee was to investigate the linear test set-up for AD and TD measurements (Dilation Rigs) in the period from setting to the end of the hardening phase some weeks after. These are the stress-inducing deformations in a hardening concrete structure subjected to restraint conditions. The main task was to carry out an RR program on testing of AD of one concrete at 20 °C isothermal conditions in Dilation Rigs. The concrete part materials were distributed to 10 laboratories (Canada, Denmark, France, Germany, Japan, The Netherlands, Norway, Sweden and USA), and in total 30 tests on AD were carried out. Some supporting tests were also performed, as well as a smaller RR on cement paste. The committee has worked out a test procedure recommenda...

To be so bold: boldness is repeatable and related to within individual behavioural variability in North Island robins.

Science.gov (United States)

He, Ruchuan; Pagani-Núñez, Emilio; Chevallier, Clément; Barnett, Craig R A

2017-07-01

Behavioural research traditionally focusses on the mean responses of a group of individuals rather than variation in behaviour around the mean or among individuals. However, examining the variation in behaviour among and within individuals may also yield important insights into the evolution and maintenance of behaviour. Repeatability is the most commonly used measure of variability among individuals in behavioural research. However, there are other forms of variation within populations that have received less attention. One such measure is intraindividual variation in behaviour (IIV), which is a short-term fluctuation of within-individual behaviour. Such variation in behaviour might be important during interactions because it could decrease the ability of conspecific and heterospecific individuals to predict the behaviour of the subject, thus increasing the cost of the interaction. In this experiment, we made repeated measures of the latency of North Island robins to attack a prey in a novel situation (a form of boldness) and examined (i) repeatability of boldness (the propensity to take a risk), (ii) IIV of boldness, and (iii) whether there was a significant relationship between these two traits (a behavioural syndrome). We found that boldness was highly repeatable, that there were high levels of IIV in boldness, and that there was a negative relationship between boldness and IIV in boldness. This suggests that despite high levels of repeatability for this behaviour, there were also still significant differences in IIV among different individuals within the population. Moreover, bolder individuals had significantly less IIV in their boldness, which suggests that they were forming routines (which reduces behavioural variability) compared to shyer individuals. Our results definitively demonstrate that IIV itself varies across individuals and is linked with key behavioural traits, and we argue for the importance of future studies aimed at understanding its causes

Socioeconomic inequalities in informal payments for health care: An assessment of the 'Robin Hood' hypothesis in 33 African countries.

Science.gov (United States)

Kankeu, Hyacinthe Tchewonpi; Ventelou, Bruno

2016-02-01

In almost all African countries, informal payments are frequently made when accessing health care. Some literature suggests that the informal payment system could lead to quasi-redistribution among patients, with physicians playing a 'Robin Hood' role, subsidizing the poor at the expense of the rich. We empirically tested this assumption with data from the rounds 3 and 5 of the Afrobarometer surveys conducted in 18 and 33 African countries respectively, from 2005 to 2006 for round 3 and from 2011 to 2013 for round 5. In these surveys, nationally representative samples of people aged 18 years or more were randomly selected in each country, with sizes varying between 1048 and 2400 for round 3 and between 1190 and 2407 for round 5. We used the 'normalized' concentration index, the poor/rich gap and the odds ratio to assess the level of inequality in the payment of bribes to access care at the local public health facility and implemented two decomposition techniques to identify the contributors to the observed inequalities. We obtained that: i) the socioeconomic gradient in informal payments is in favor of the rich in almost all countries, indicating a rather regressive system; ii) this is mainly due to the socioeconomic disadvantage itself, to poor/rich differences in supply side factors like lack of medicines, absence of doctors and long waiting times, as well as regional disparities. Although essentially empirical, the paper highlights the need for African health systems to undergo substantial country-specific reforms in order to better protect the worse-off from financial risk when they seek care. Copyright © 2016 Elsevier Ltd. All rights reserved.

Real time refractive index measurement by ESPI

International Nuclear Information System (INIS)

Torroba, R.; Joenathan, C.

1991-01-01

In this paper a method to measure refractive index variations in real time is reported. A technique to introduce reference fringes in real time is discussed. Both the theoretical and experimental results are presented and an example with phase shifting is given. (author). 8 refs, 5 figs

Speckle interferometry

Science.gov (United States)

Sirohi, Rajpal S.

2002-03-01

Illumination of a rough surface by a coherent monochromatic wave creates a grainy structure in space termed a speckle pattern. It was considered a special kind of noise and was the bane of holographers. However, its information-carrying property was soon discovered and the phenomenon was used for metrological applications. The realization that a speckle pattern carried information led to a new measurement technique known as speckle interferometry (SI). Although the speckle phenomenon in itself is a consequence of interference among numerous randomly dephased waves, a reference wave is required in SI. Further, it employs an imaging geometry. Initially SI was performed mostly by using silver emulsions as the recording media. The double-exposure specklegram was filtered to extract the desired information. Since SI can be configured so as to be sensitive to the in-plane displacement component, the out-of-plane displacement component or their derivatives, the interferograms corresponding to these were extracted from the specklegram for further analysis. Since the speckle size can be controlled by the F number of the imaging lens, it was soon realized that SI could be performed with electronic detection, thereby increasing its accuracy and speed of measurement. Furthermore, a phase-shifting technique can also be incorporated. This technique came to be known as electronic speckle pattern interferometry (ESPI). It employed the same experimental configurations as SI. ESPI found many industrial applications as it supplements holographic interferometry. We present three examples covering diverse areas. In one application it has been used to measure residual stress in a blank recordable compact disk. In another application, microscopic ESPI has been used to study the influence of relative humidity on paint-coated figurines and also the effect of a conservation agent applied on top of this. The final application is to find the defects in pipes. These diverse applications

Enviromentally sensitive patch index of desertification risk applied to the main habitats of Sicily

Science.gov (United States)

Duro, A.; Piccione, V.; Ragusa, M. A.; Rapicavoli, V.; Veneziano, V.

2017-07-01

The authors applied the MEDALUS - Mediterranean Desertification and Land Use - procedure to the most representative sicilian habitat by extension, socio-economic and environmental importance, in order to assess the risk of desertification. Thanks to the ESPI, Environmentally Sensitive Patch Index, in this paper the authors estimate the current and future regional levels of desertification risk.

Caregiver Report of Executive Functioning in a Population-Based Sample of Young Children with Down Syndrome

Science.gov (United States)

Lee, Nancy Raitano; Fidler, Deborah J.; Blakeley-Smith, Audrey; Daunhauer, Lisa; Robinson, Cordelia; Hepburn, Susan L.

2011-01-01

The current study describes everyday executive function (EF) profiles in young children with Down syndrome. Caregivers of children with Down syndrome (n = 26; chronological ages = 4-10 years; mental ages = 2-4 years) completed the Behavior Rating Inventory of Executive Function-Preschool (BRIEF-P; G. A. Gioia, K. A. Espy, & P. K. Isquith, 2003), a…

Measuring the energy security implications of fossil fuel resource concentration

International Nuclear Information System (INIS)

Lefevre, Nicolas

2010-01-01

Economic assessments of the welfare effects of energy insecurity are typically uncertain and fail to provide clear guidance to policy makers. As a result, governments have had little analytical support to complement expert judgment in the assessment of energy security. This is likely to be inadequate when considering multiple policy goals, and in particular the intersections between energy security and climate change mitigation policies. This paper presents an alternative approach which focuses on gauging the causes of energy insecurity as a way to assist policy making. The paper focuses on the energy security implications of fossil fuel resource concentration and distinguishes between the price and physical availability components of energy insecurity. It defines two separate indexes: the energy security price index (ESPI), based on the measure of market concentration in competitive fossil fuel markets, and the energy security physical availability index (ESPAI), based on the measure of supply flexibility in regulated markets. The paper illustrates the application of ESPI and ESPAI with two case studies-France and the United Kingdom-looking at the evolution of both indexes to 2030.

Measuring the energy security implications of fossil fuel resource concentration

Energy Technology Data Exchange (ETDEWEB)

Lefevre, Nicolas [Woodrow Wilson School of Public and International Affairs, Princeton University, New Jersey (United States)

2010-04-15

Economic assessments of the welfare effects of energy insecurity are typically uncertain and fail to provide clear guidance to policy makers. As a result, governments have had little analytical support to complement expert judgment in the assessment of energy security. This is likely to be inadequate when considering multiple policy goals, and in particular the intersections between energy security and climate change mitigation policies. This paper presents an alternative approach which focuses on gauging the causes of energy insecurity as a way to assist policy making. The paper focuses on the energy security implications of fossil fuel resource concentration and distinguishes between the price and physical availability components of energy insecurity. It defines two separate indexes: the energy security price index (ESPI), based on the measure of market concentration in competitive fossil fuel markets, and the energy security physical availability index (ESPAI), based on the measure of supply flexibility in regulated markets. The paper illustrates the application of ESPI and ESPAI with two case studies - France and the United Kingdom - looking at the evolution of both indexes to 2030. (author)

Effect of genotype on egg quality characteristics of guinea fowl ...

African Journals Online (AJOL)

The genotypes were Pearl x Pearl (PL x PL), Black x Black (BL x BL) and Pearl x Black (PL x BL). ... The external and shell quality parameters measured were egg weight (EWGT), egg length (ELGT), egg width (EWDT), egg shape index (ESPI), shell weight (SWGT), and shell thickness (STKN) while the internal traits were ...

Methods used by Elsam for monitoring precision and accuracy of analytical results

Energy Technology Data Exchange (ETDEWEB)

Hinnerskov Jensen, J [Soenderjyllands Hoejspaendingsvaerk, Faelleskemikerne, Aabenraa (Denmark)

1996-12-01

Performing round robins at regular intervals is the primary method used by ELsam for monitoring precision and accuracy of analytical results. The firs round robin was started in 1974, and today 5 round robins are running. These are focused on: boiler water and steam, lubricating oils, coal, ion chromatography and dissolved gases in transformer oils. Besides the power plant laboratories in Elsam, the participants are power plant laboratories from the rest of Denmark, industrial and commercial laboratories in Denmark, and finally foreign laboratories. The calculated standard deviations or reproducibilities are compared with acceptable values. These values originate from ISO, ASTM and the like, or from own experiences. Besides providing the laboratories with a tool to check their momentary performance, the round robins are vary suitable for evaluating systematic developments on a long term basis. By splitting up the uncertainty according to methods, sample preparation/analysis, etc., knowledge can be extracted from the round robins for use in many other situations. (au)

Sampling and analysis methods for geothermal fluids and gases

Energy Technology Data Exchange (ETDEWEB)

Shannon, D. W.

1978-01-01

The data obtained for the first round robin sample collected at Mesa 6-2 wellhead, East Mesa Test Site, Imperial Valley are summarized. Test results are listed by method used for cross reference to the analytic methods section. Results obtained for radioactive isotopes present in the brine sample are tabulated. The data obtained for the second round robin sample collected from the Woolsey No. 1 first stage flash unit, San Diego Gas and Electric Niland Test Facility are presented in the same manner. Lists of the participants of the two round robins are given. Data from miscellaneous analyses are included. Summaries of values derived from the round robin raw data are presented. (MHR)

A round-robin gamma stereotactic radiosurgery dosimetry interinstitution comparison of calibration protocols

Energy Technology Data Exchange (ETDEWEB)

Drzymala, R. E., E-mail: drzymala@wustl.edu [Department of Radiation Oncology, Washington University, St. Louis, Missouri 63110 (United States); Alvarez, P. E. [Imaging and Radiation Oncology Core Houston, UT MD Anderson Cancer Center, Houston, Texas 77030 (United States); Bednarz, G. [Radiation Oncology Department, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania 15232 (United States); Bourland, J. D. [Department of Radiation Oncology, Wake Forest University, Winston-Salem, North Carolina 27157 (United States); DeWerd, L. A. [Department of Medical Physics, University of Wisconsin-Madison, Madison, Wisconsin 53705 (United States); Ma, L. [Department of Radiation Oncology, University California San Francisco, San Francisco, California 94143 (United States); Meltsner, S. G. [Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina 27710 (United States); Neyman, G. [Department of Radiation Oncology, The Cleveland Clinic Foundation, Cleveland, Ohio 44195 (United States); Novotny, J. [Medical Physics Department, Hospital Na Homolce, Prague 15030 (Czech Republic); Petti, P. L. [Gamma Knife Center, Washington Hospital Healthcare System, Fremont, California 94538 (United States); Rivard, M. J. [Department of Radiation Oncology, Tufts University School of Medicine, Boston, Massachusetts 02111 (United States); Shiu, A. S. [Department of Radiation Oncology, University of Southern California, Los Angeles, California 90033 (United States); Goetsch, S. J. [San Diego Medical Physics, Inc., La Jolla, California 92037 (United States)

2015-11-15

Purpose: Absorbed dose calibration for gamma stereotactic radiosurgery is challenging due to the unique geometric conditions, dosimetry characteristics, and nonstandard field size of these devices. Members of the American Association of Physicists in Medicine (AAPM) Task Group 178 on Gamma Stereotactic Radiosurgery Dosimetry and Quality Assurance have participated in a round-robin exchange of calibrated measurement instrumentation and phantoms exploring two approved and two proposed calibration protocols or formalisms on ten gamma radiosurgery units. The objectives of this study were to benchmark and compare new formalisms to existing calibration methods, while maintaining traceability to U.S. primary dosimetry calibration laboratory standards. Methods: Nine institutions made measurements using ten gamma stereotactic radiosurgery units in three different 160 mm diameter spherical phantoms [acrylonitrile butadiene styrene (ABS) plastic, Solid Water, and liquid water] and in air using a positioning jig. Two calibrated miniature ionization chambers and one calibrated electrometer were circulated for all measurements. Reference dose-rates at the phantom center were determined using the well-established AAPM TG-21 or TG-51 dose calibration protocols and using two proposed dose calibration protocols/formalisms: an in-air protocol and a formalism proposed by the International Atomic Energy Agency (IAEA) working group for small and nonstandard radiation fields. Each institution’s results were normalized to the dose-rate determined at that institution using the TG-21 protocol in the ABS phantom. Results: Percentages of dose-rates within 1.5% of the reference dose-rate (TG-21 + ABS phantom) for the eight chamber-protocol-phantom combinations were the following: 88% for TG-21, 70% for TG-51, 93% for the new IAEA nonstandard-field formalism, and 65% for the new in-air protocol. Averages and standard deviations for dose-rates over all measurements relative to the TG-21 + ABS

Ultrasonic inspection reliability for intergranular stress corrosion cracks

Energy Technology Data Exchange (ETDEWEB)

Heasler, P G; Taylor, T T; Spanner, J C; Doctor, S R; Deffenbaugh, J D [Pacific Northwest Lab., Richland, WA (USA)

1990-07-01

A pipe inspection round robin entitled Mini-Round Robin'' was conducted at Pacific Northwest Laboratory from May 1985 through October 1985. The research was sponsored by the US Nuclear Regulatory Commission, Office of Nuclear Regulatory Research under a program entitled Evaluation and Improvement of NDE Reliability for Inservice Inspection of Light Water Reactors.'' The Mini-Round Robin (MRR) measured the intergranular stress corrosion (GSC) crack detection and sizing capabilities of inservice inspection (ISI) inspectors that had passed the requirements of IEB 83-02 and the Electric Power Research Institute (EPRI) sizing training course. The MRR data base was compared with an earlier Pipe Inspection Round Robin (PIRR) that had measured the performance of inservice inspection prior to 1982. Comparison of the MRR and PIRR data bases indicates no significant change in the inspection capability for detecting IGSCC. Also, when comparing detection of long and short cracks, no difference in detection capability was measured. An improvement in the ability to differentiate between shallow and deeper IGSCC was found when the MRR sizing capability was compared with an earlier sizing round robin conducted by the EPRI. In addition to the pipe inspection round robin, a human factors study was conducted in conjunction with the Mini-Round Robin. The most important result of the human factors study is that the Relative Operating Characteristics (ROC) curves provide a better methodology for describing inspector performance than only probability of detection (POD) or single-point crack/no crack data. 6 refs., 55 figs., 18 tabs.

A LINE-1 Insertion in DLX6 Is Responsible for Cleft Palate and Mandibular Abnormalities in a Canine Model of Pierre Robin Sequence

Science.gov (United States)

Wolf, Zena T.; Leslie, Elizabeth J.; Arzi, Boaz; Jayashankar, Kartika; Karmi, Nili; Jia, Zhonglin; Rowland, Douglas J.; Young, Amy; Safra, Noa; Sliskovic, Saundra; Murray, Jeffrey C.; Wade, Claire M.; Bannasch, Danika L.

2014-01-01

Cleft palate (CP) is one of the most commonly occurring craniofacial birth defects in humans. In order to study cleft palate in a naturally occurring model system, we utilized the Nova Scotia Duck Tolling Retriever (NSDTR) dog breed. Micro-computed tomography analysis of CP NSDTR craniofacial structures revealed that these dogs exhibit defects similar to those observed in a recognizable subgroup of humans with CP: Pierre Robin Sequence (PRS). We refer to this phenotype in NSDTRs as CP1. Individuals with PRS have a triad of birth defects: shortened mandible, posteriorly placed tongue, and cleft palate. A genome-wide association study in 14 CP NSDTRs and 72 unaffected NSDTRs identified a significantly associated region on canine chromosome 14 (24.2 Mb–29.3 Mb; praw = 4.64×10−15). Sequencing of two regional candidate homeobox genes in NSDTRs, distal-less homeobox 5 (DLX5) and distal-less homeobox 6 (DLX6), identified a 2.1 kb LINE-1 insertion within DLX6 in CP1 NSDTRs. The LINE-1 insertion is predicted to insert a premature stop codon within the homeodomain of DLX6. This prompted the sequencing of DLX5 and DLX6 in a human cohort with CP, where a missense mutation within the highly conserved DLX5 homeobox of a patient with PRS was identified. This suggests the involvement of DLX5 in the development of PRS. These results demonstrate the power of the canine animal model as a genetically tractable approach to understanding naturally occurring craniofacial birth defects in humans. PMID:24699068

Critiquing Humanism: Introductory Conversations

Directory of Open Access Journals (Sweden)

Arka Chattopadhyay

2016-08-01

Full Text Available The word “humanism” is associated with the revival of classical antiquity in 13th -15thC Italy. “It involves,” as Nicholas Mann writes, “the rediscovery and study of ancient Greek and Roman texts, the restoration and interpretation of them and the assimilation of the ideas and values that they contain” (2. The assimilation was based on archaeological and philological attention to the details of all manner of written records - from inscriptions to epic poems – and pervaded all areas of post-medieval culture, including theology, philosophy, political thought, jurisprudence, medicine, mathematics, and the creative arts. Such a practice allowed humanist scholars to explore the meaning of local or foreign texts, use them for religious, socio-political or economic reasons, and form an international community of texts and discourses. Since the revival of classical learning was related with the popular rise of liberal education, especially literature, philosophy, and the arts, which had an important role in political propaganda, military discourse, and public morality, humanism also had a political role. But, the humanist political thinkers were not political in its ideological sense. As James Hankins tells us, the Italian humanists, because of the central role, the Church played in public and professional life, were seldom critical of establishment politics and spoke mainly about both the positive and negative sides in rhetorical manner, choosing to take the role of a pragmatist (Hankins 120. It was with the rise of Ottoman empire and fall and degradation of humanist learning that new humanist thinking came to take the central stage – mainly by Niccolò Machiavelli and Thomas More with shifting ideals on virtue (which for Machiavelli stood for ability, power, and prowess and a specific focus on justice, equality and democracy (for More.

SeaWiFS technical report series. Volume 26: Results of the SeaWiFS Data Analysis Round-Robin, July 1994 (DARR-1994)

Science.gov (United States)

Hooker, Stanford B. (Editor); Firestone, Elaine R. (Editor); Siegel, David A.; Obrien, Margaret C.; Sorensen, Jen C.; Konnoff, Daniel A.; Brody, Eric A.; Mueller, James L.; Davis, Curtiss O.; Rhea, W. Joseph

1995-01-01

The accurate determination of upper ocean apparent optical properties (AOP's) is essential for the vicarious calibration of the sea-viewing wide field-of-view sensor (SeaWiFS) instrument and the validation of the derived data products. To evaluate the role that data analysis methods have upon values of derived AOP's, the first Data Analysis Round-Robin (DARR-94) workshop was sponsored by the SeaWiFS Project during 21-23 July, 1994. The focus of this intercomparison study was the estimation of the downwelling irradiance spectrum just beneath the sea surface, E(sub d)(0(sup -), lambda); the upwelling nadir radiance just beneath the sea surface, L(sub u)(0(sup -), lambda); and the vertical profile of the diffuse attenuation coefficient spectrum, K(sub d)(z, lambda). In the results reported here, different methodologies from four research groups were applied to an identical set of 10 spectroradiometry casts in order to evaluate the degree to which data analysis methods influence AOP estimation, and whether any general improvements can be made. The overall results of DARR-94 are presented in Chapter 1 and the individual methods of the four groups are presented in Chapters 2-5. The DARR-94 results do not show a clear winner among data analysis methods evaluated. It is apparent, however, that some degree of outlier rejection is required in order to accurately estimate L(sub u)(0(sup -), lambda) or E(sub d)(0(sup -), lambda). Furthermore, the calculation, evaluation and exploitation of confidence intervals for the AOP determinations needs to be explored. That is, the SeaWiFS calibration and validation problem should be recast in statistical terms where the in situ AOP values are statistical estimates with known confidence intervals.

Coupling two-phase fluid flow with two-phase darcy flow in anisotropic porous media

KAUST Repository

Chen, J.; Sun, S.; Chen, Z.

2014-01-01

in the free fluid region and the two-phase Darcy law in the anisotropic porous medium region. A Robin-Robin domain decomposition method is used for the coupled Navier-Stokes and Darcy system with the generalized Beavers-Joseph-Saffman condition

75 FR 35720 - Massachusetts: Final Authorization of State Hazardous Waste Management Program Revisions

Science.gov (United States)

2010-06-23

...: Final Authorization of State Hazardous Waste Management Program Revisions AGENCY: Environmental...: Robin Biscaia, RCRA Waste Management Section, Office of Site Remediation and Restoration (OSRR 07-1... Courier: Deliver your comments to: Robin Biscaia, RCRA Waste Management Section, Office of Site...

Vibrational mode and sound radiation of electrostatic speakers using circular and annular diaphragms

Science.gov (United States)

Huang, Yu-Hsi; Chiang, Hsin-Yuan

2016-06-01

This study modeled two diaphragms comprising a pair of indium tin oxide (ITO) transparent plates sandwiching a vibrating diaphragm to create circular (30 mm radius) and annular (30 mm outer and 3 mm inner radius) push-pull electrostatic speakers. We then measured the displacement amplitudes and mode shapes produced by the devices. Vibration characteristics were used to predict sound pressure levels (SPLs) using the lumped parameter method (LPM) and distributed parameter method (DPM). The two measurement results obtained using a laser system were compared to the SPLs obtained using traditional acoustic measurement (AM) from 20 Hz to 20 kHz in order to verify our predictions. When using LPM and DPM, the SPL prediction results in the first three symmetric modes were in good agreement with the AM results. Under the assumption of linear operations, the DPM and amplitude-fluctuation electronic speckle pattern interferometry (ESPI) techniques proved effective in determining the visualization of mode shape (0,1)-(0,3). The use of ITO plates is a practical technique for the prediction of SPL, as well as measurement of mode shapes. The four evaluation methods, i.e. LPM, DPM, ESPI and AM, present a high degree of consistency with regard to vibrational mode and sound radiation characteristics.

75 FR 43478 - Rhode Island: Final Authorization of State Hazardous Waste Management Program Revisions

Science.gov (United States)

2010-07-26

...: Final Authorization of State Hazardous Waste Management Program Revisions AGENCY: Environmental.... Mail: Robin Biscaia, RCRA Waste Management Section, Office of Site Remediation and Restoration (OSRR 07... Delivery or Courier: Deliver your comments to: Robin Biscaia, RCRA Waste Management Section, Office of Site...

Creep of granulated loose-fill insulation

DEFF Research Database (Denmark)

Rasmussen, Torben Valdbjørn

This report presents a proposal for a standardised method for creep tests and the necessary theoretical framework that can be used to describe creep of a granulated loose-fill material. Furthermore results from a round robin test are shown. The round robin test was carried out in collaboration...... with SP-Building Physics in Sweden and VTT Building Technology in Finland. For the round robin test a cellulosic fibre insulation material was used. The proposed standardised method for creep tests and theories are limited to cases when the granulated loose-fill material is exposed to a constant...

Multigrid technique and Optimized Schwarz method on block-structured grids with discontinuous interfaces

DEFF Research Database (Denmark)

Kolmogorov, Dmitry; Sørensen, Niels N.; Shen, Wen Zhong

2013-01-01

An Optimized Schwarz method using Robin boundary conditions for relaxation scheme is presented in the frame of Multigrid method on discontinuous grids. At each iteration the relaxation scheme is performed in two steps: one step with Dirichlet and another step with Robin boundary conditions at inn...

Browse Title Index

African Journals Online (AJOL)

Items 301 - 350 of 683 ... Correlates of detection from the Fynbos biome, South Africa, with applications for population estimation, Abstract. Alan TK ... Vol 82, No 3 (2011), Inferred hybridisation, sympatry and movements of Chorister Robin-Chat Cossypha dichroa and Red-capped Robin-Chat C. natalensis, Abstract. Gregory ...

In Vivo Imaging of Tissue Physiological Function using EPR Spectroscopy | NCI Technology Transfer Center | TTC

Science.gov (United States)

Electron paramagnetic resonance (EPR) is a technique for studying chemical species that have one or more unpaired electrons.  The current invention describes Echo-based Single Point Imaging (ESPI), a novel EPR image formation strategy that allows in vivo imaging of physiological function.  The National Cancer Institute's Radiation Biology Branch is seeking statements of capability or interest from parties interested in in-licensing an in vivo imaging using Electron paramagnetic resonance (EPR) to measure active oxygen species.

Status of Photovoltaic Calibration and Measurement Standards

Science.gov (United States)

Baraona, Cosmo; Bailey, Sheila; Curtis, Henry; Brinker, David; Jenkins, Phillip; Scheiman, David

2001-01-01

The 7th International Workshop on Space Solar Cell Calibration and Measurement was held on September 25-27, 2000 in Girdwood, Alaska. Representatives from eight countries discussed international standards for single and multijunction solar cell measurement and calibration methods, round robin intercomparisons, and irradiation test methods for space solar cells. Progress toward adoption of an ISO standard on single junction cells was made. Agreement was reached to begin work on new standards for multijunction cells and irradiation testing. Progress on present single junction round robin measurements was discussed and future multijunction round robins were planned. The next workshop will be held in Germany in October 2001.

Variability in a three-generation family with Pierre Robin sequence, acampomelic campomelic dysplasia, and intellectual disability due to a novel ∼1 Mb deletion upstream of SOX9, and including KCNJ2 and KCNJ16.

Science.gov (United States)

Castori, Marco; Bottillo, Irene; Morlino, Silvia; Barone, Chiara; Cascone, Piero; Grammatico, Paola; Laino, Luigi

2016-01-01

Campomelic dysplasia and acampomelic campomelic dysplasia (ACD) are allelic disorders due to heterozygous mutations in or around SOX9. Translocations and deletions involving the SOX9 5' regulatory region are rare causes of these disorders, as well as Pierre Robin sequence (PRS) and 46,XY gonadal dysgenesis. Genotype-phenotype correlations are not straightforward due to the complex epigenetic regulation of SOX9 expression during development. We report a three-generation pedigree with a novel ∼1 Mb deletion upstream of SOX9 and including KCNJ2 and KCNJ16, and ascertained for dominant transmission of PRS. Further characterization of the family identified subtle appendicular anomalies and a variable constellation of axial skeletal features evocative of ACD in several members. Affected males showed learning disability. The identified deletion was smaller than all other chromosome rearrangements associated with ACD. Comparison with other reported translocations and deletions involving this region allowed further refining of genotype-phenotype correlations and an update of the smallest regions of overlap associated with the different phenotypes. Intrafamilial variability in this pedigree suggests a phenotypic continuity between ACD and PRS in patients carrying mutations in the SOX9 5' regulatory region. © 2015 Wiley Periodicals, Inc.

The use of pulsed lasers for vibration analysis in the nuclear power industry

International Nuclear Information System (INIS)

Tozer, B.A.

1987-01-01

The structural engineer's interest in vibration can generally be summarised as a desire to know the modes of vibration which an engineering structure can assume, the resonant frequencies, the sharpness of the resonances (related to the damping forces in and on the structure) and their amplitudes under given driving forces. Most of all he is interested in the non-resonant vibration of the structure under the influence of a random driving force, and he would like to determine the direction (in three dimensional space), as well as amplitude, of the motions involved. In industries in which exceptionally high levels of structural integrity are required through long periods of continuous or near continuous operation, such as the aeronautical or nuclear industries, accurate vibration analysis is an essential first step towards an assessment of the fatigue life of the structure. In this case the most important factor is the dynamic stress in the structural material. Measurement tools available to the engineer, in order to obtain the information he needs, are numerous, varied in character, and generally unable to meet all the needs outlined above. They may be contacting (e.g. accelerometers or straingauges) or non contacting (for example holographic interferometry, ESPI or SPATE). They may provide data continuous in space (holographic interferometry), with limited spatial resolution (ESPI), or discrete point measurements (accelerometers, laser vibrometers)

AVALIAÇÃO DO IMPACTO DA CAPACITAÇÃO PROFISSIONAL ADMINISTRADA NA PREFEITURA DE MANAUS POR MEIO DA APLICAÇÃO DO MODELO IMPACT

Directory of Open Access Journals (Sweden)

Diego Melo Dias

2016-06-01

Full Text Available A capacitação profissional é uma arma poderosa na busca pelo desenvolvimento das competências humanas no trabalho. O foco em treinamento e desenvolvimento tornou-se indispensável ao alcance da excelência na prestação de serviços. Na administração pública os órgãos responsáveis pelo aperfeiçoamento profissional são as Escolas de Governo, que atuam junto aos funcionários públicos na melhoria da máquina estatal, que tem o dever de prestar serviços públicos de qualidade. Sendo assim, o estudo objetiva avaliar o impacto da capacitação profissional voltada para o servidor na Prefeitura de Manaus. Para isso a análise se deu por meio da adaptação do Modelo IMPACT de avaliação do treinamento, aplicado junto aos servidores egressos de atividades de capacitação promovidas pela Escola de Serviço Público da Prefeitura de Manaus (ESPI. Os resultados sugerem que há forte impacto positivo da capacitação administrada pela ESPI nas atividades laborais dos servidores, no entanto, o suporte dado pelas chefias ao treinamento necessita de ajustes para que possa proporcionar um melhor aproveitamento dos conhecimentos e habilidades adquiridos pelos servidores em prol de suas instituições.

Defect Localization Capabilities of a Global Detection Scheme: Spatial Pattern Recognition Using Full-field Vibration Test Data in Plates

Science.gov (United States)

Saleeb, A. F.; Prabhu, M.; Arnold, S. M. (Technical Monitor)

2002-01-01

Recently, a conceptually simple approach, based on the notion of defect energy in material space has been developed and extensively studied (from the theoretical and computational standpoints). The present study focuses on its evaluation from the viewpoint of damage localization capabilities in case of two-dimensional plates; i.e., spatial pattern recognition on surfaces. To this end, two different experimental modal test results are utilized; i.e., (1) conventional modal testing using (white noise) excitation and accelerometer-type sensors and (2) pattern recognition using Electronic speckle pattern interferometry (ESPI), a full field method capable of analyzing the mechanical vibration of complex structures. Unlike the conventional modal testing technique (using contacting accelerometers), these emerging ESPI technologies operate in a non-contacting mode, can be used even under hazardous conditions with minimal or no presence of noise and can simultaneously provide measurements for both translations and rotations. Results obtained have clearly demonstrated the robustness and versatility of the global NDE scheme developed. The vectorial character of the indices used, which enabled the extraction of distinct patterns for localizing damages proved very useful. In the context of the targeted pattern recognition paradigm, two algorithms were developed for the interrogation of test measurements; i.e., intensity contour maps for the damaged index, and the associated defect energy vector field plots.

Genotype-Dependent Interaction of Lentil Lines with Ascochyta lentis

Directory of Open Access Journals (Sweden)

Ehsan Sari

2017-05-01

Full Text Available Ascochyta blight of lentil is a prevalent disease in many lentil producing regions and can cause major yield and grain quality losses. The most environmentally acceptable and economically profitable method of control is to develop varieties with high levels of durable resistance. Genetic studies to date suggest that ascochyta blight resistance genes (R-gene in lentil lines CDC Robin, ILL 7537, 964a-46, and ILL 1704 are non-allelic. To understand how different R-genes manifest resistance in these genotypes and an accession of Lens ervoides, L-01-827A, with high level of resistance to ascochyta blight, cellular and molecular defense responses were compared after inoculation with the causal pathogen Ascochyta lentis. Pathogenicity testing of the resistant lines to A. lentis inoculation revealed significantly lower disease severity on CDC Robin and ILL 7537 compared to ILL 1704 and 964a-46, and no symptoms of disease were observed on L-01-827A. Histological examinations indicated that cell death triggered by the pathogen might be disrupted as a mechanism of resistance in CDC Robin. In contrast, limiting colonization of epidermal cells by A. lentis is a suggested mechanism of resistance in 964a-46. A time-series comparison of the expressions of hallmark genes in salicylic acid (SA and jasmonic acid (JA signal transduction pathways between CDC Robin and 964a-46 was conducted. These partially resistant genotypes differed in the timing and the magnitude of SA and JA signaling pathway activation. The SA signaling pathway was only triggered in 964a-46, whereas the JA pathway was triggered in both partially resistant genotypes CDC Robin and 964a-46. The expression of JA-associated genes was lower in 964a-46 than CDC Robin. These observations corroborate the existence of diverse ascochyta blight resistance mechanisms in lentil genotypes carrying different R-genes.

Experimental shifts in intraclutch egg color variation do not affect egg rejection in a host of a non-egg-mimetic avian brood parasite.

Directory of Open Access Journals (Sweden)

Rebecca Croston

Full Text Available Avian brood parasites lay their eggs in the nests of other birds, and impose the costs associated with rearing parasitic young onto these hosts. Many hosts of brood parasites defend against parasitism by removing foreign eggs from the nest. In systems where parasitic eggs mimic host eggs in coloration and patterning, extensive intraclutch variation in egg appearances may impair the host's ability to recognize and reject parasitic eggs, but experimental investigation of this effect has produced conflicting results. The cognitive mechanism by which hosts recognize parasitic eggs may vary across brood parasite hosts, and this may explain variation in experimental outcome across studies investigating egg rejection in hosts of egg-mimicking brood parasites. In contrast, for hosts of non-egg-mimetic parasites, intraclutch egg color variation is not predicted to co-vary with foreign egg rejection, irrespective of cognitive mechanism. Here we tested for effects of intraclutch egg color variation in a host of nonmimetic brood parasite by manipulating egg color in American robins (Turdus migratorius, hosts of brown-headed cowbirds (Molothrus ater. We recorded robins' behavioral responses to simulated cowbird parasitism in nests where color variation was artificially enhanced or reduced. We also quantified egg color variation within and between unmanipulated robin clutches as perceived by robins themselves using spectrophotometric measures and avian visual modeling. In unmanipulated nests, egg color varied more between than within robin clutches. As predicted, however, manipulation of color variation did not affect rejection rates. Overall, our results best support the scenario wherein egg rejection is the outcome of selective pressure by a nonmimetic brood parasite, because robins are efficient rejecters of foreign eggs, irrespective of the color variation within their own clutch.

Designing of Vague Logic Based 2-Layered Framework for CPU Scheduler

Directory of Open Access Journals (Sweden)

Supriya Raheja

2016-01-01

Full Text Available Fuzzy based CPU scheduler has become of great interest by operating system because of its ability to handle imprecise information associated with task. This paper introduces an extension to the fuzzy based round robin scheduler to a Vague Logic Based Round Robin (VBRR scheduler. VBRR scheduler works on 2-layered framework. At the first layer, scheduler has a vague inference system which has the ability to handle the impreciseness of task using vague logic. At the second layer, Vague Logic Based Round Robin (VBRR scheduling algorithm works to schedule the tasks. VBRR scheduler has the learning capability based on which scheduler adapts intelligently an optimum length for time quantum. An optimum time quantum reduces the overhead on scheduler by reducing the unnecessary context switches which lead to improve the overall performance of system. The work is simulated using MATLAB and compared with the conventional round robin scheduler and the other two fuzzy based approaches to CPU scheduler. Given simulation analysis and results prove the effectiveness and efficiency of VBRR scheduler.

Females increase reproductive investment in response to helper-mediated improvements in allo-feeding, nest survival, nestling provisioning and post-fledging survival in the Karoo scrub-robin Cercotrichas coryphaeus

Science.gov (United States)

Lloyd, P.; Andrew, Taylor W.; du Plessis, Morné A.; Martin, T.E.

2009-01-01

In many cooperatively-breeding species, the presence of one or more helpers improves the reproductive performance of the breeding pair receiving help. Helper contributions can take many different forms, including allo-feeding, offspring provisioning, and offspring guarding or defence. Yet, most studies have focussed on single forms of helper contribution, particularly offspring provisioning, and few have evaluated the relative importance of a broader range of helper contributions to group reproductive performance. We examined helper contributions to multiple components of breeding performance in the Karoo scrub-robin Cercotrichas coryphaeus, a facultative cooperative breeder. We also tested a prediction of increased female investment in reproduction when helpers improve conditions for rearing young. Helpers assisted the breeding male in allo-feeding the incubating female, increasing allo-feeding rates. Greater allo-feeding correlated with greater female nest attentiveness during incubation. Nest predation was substantially lower among pairs breeding with a helper, resulting in a 74% increase in the probability of nest survival. Helper contributions to offspring provisioning increased nestling feeding rates, resulting in a reduced incidence of nestling starvation and increased nestling mass. Nestling mass had a strong, positive effect on post-fledging survival. Controlling for female age and habitat effects, annual production of fledged young was 130% greater among pairs breeding with a helper, and was influenced most strongly by helper correlates with nest survival, despite important helper effects on offspring provisioning. Females breeding with a helper increased clutch size, supporting the prediction of increased female investment in reproduction in response to helper benefits. ?? 2009 J. Avian Biol.

The use of passerine feathers to evaluate heavy metal pollution in Central Portugal.

Science.gov (United States)

Costa, R A; Petronilho, J M S; Soares, A M V M; Vingada, J V

2011-03-01

In 2003, two sampling strategies were applied in order to evaluate metal contamination in passerine bird feathers. One strategy included the use of nest boxes and nestling great tits in a forest habitat (MU). The other strategy focused on the use of mist nets to capture adult blackbirds, robins and blackcaps in a fragmented non-forested habitat (EST). There was a significantly higher concentration of mercury in great tits (1.09 ± 0.40) sampled in MU and also in robins (3.44 ± 0.91) and blackcaps (1.62 ± 1.99) sampled in EST, in comparison to the reference site (0.66 ± 0.68; 2.04 ± 1.12; 0.32 ± 0.43; respectively). Concerning interspecific differences, robins accumulated significantly more metals than blackbirds or blackcaps.

Optimum radars and filters for the passive sphere system

Science.gov (United States)

Luers, J. K.; Soltes, A.

1971-01-01

Studies have been conducted to determine the influence of the tracking radar and data reduction technique on the accuracy of the meteorological measurements made in the 30 to 100 kilometer altitude region by the ROBIN passive falling sphere. A survey of accuracy requirements was made of agencies interested in data from this region of the atmosphere. In light of these requirements, various types of radars were evaluated to determine the tracking system most applicable to the ROBIN, and methods were developed to compute the errors in wind and density that arise from noise errors in the radar supplied data. The effects of launch conditions on the measurements were also examined. Conclusions and recommendations have been made concerning the optimum tracking and data reduction techniques for the ROBIN falling sphere system.

Use of wrist albedo neutron dosimeters

International Nuclear Information System (INIS)

Hankins, D.E.

1983-01-01

We are developing a wrist dosimeter that can be used to measure the exposure at the wrist to x-rays, gamma rays, beta-particles, thermal neutrons and fast neutrons. It consists of a modified Hankins Type albedo neutron dosimeter and also contains three pieces of CR-39 plastic. ABS plastic in the form of an elongated hemisphere provides the beta and low energy x-ray shielding necessary to meet the requirement of depth dose measurements at 1 cm. The dosimeter has a beta window located in the side of the hemisphere oriented towards an object being held in the hands. A TLD 600 is positioned under the 1 cm thick ABS plastic and is used to measure the thermal neutron dose. At present we are using Velcro straps to hold the dosimeter on the inside of the wrist. 9 figures

Nevada test site neutron dosimetry-problems/solutions

International Nuclear Information System (INIS)

Sygitowicz, L.S.; Bastian, C.T.; Wells, I.J.; Koch, P.N.

1991-01-01

Historically, neutron dosimetry at the NTS was done using NTA film and albedo LiF TLD's. In 1987 the dosimeter type was changed from the albedo TLD based system to a CR-39 track etch based system modeled after the program developed by D. Hankins at LLNL. Routine issue and return is performed quarterly for selected personnel using bar-code readers at permanent locations. The capability exists for work site issue as-needed. Issue data are transmitted by telephone to a central computer where it is stored until the dosimeter is returned, processed and read, and the dose calculation is performed. Dose equivalent calculations are performed using LOTUS 123 and the results are printed as a hard copy record. The issue and dose information are hand-entered into the Dosimetry database. An application is currently being developed to automate this sequence

Robin Hood in reverse?

DEFF Research Database (Denmark)

Jensen, Cathrine Ulla; Panduro, Toke Emil; Lundhede, Thomas

of nature. Preference parameters are identified locally through restrictions on household utility-functions. First, we assess the relation between demographic factors and household WTP for nature. Households with higher incomes and wealth have a 0.9% higher WTP per 1.000 EUR and this figure is slightly...

NCLB: Achievement Robin Hood?

Science.gov (United States)

Bracey, Gerald W.

2008-01-01

In his "Wall Street Journal" op-ed on the 25th of anniversary of "A Nation At Risk", former assistant secretary of education Chester E. Finn Jr. applauded the report for turning U.S. education away from equality and toward achievement. It was not surprising, then, that in mid-2008, Finn arranged a conference to examine the…

The Effect of Activity-Based Costing on Logistics Management

Science.gov (United States)

1993-01-01

Accounting Horizons, Vol. 6, No. 3, September 1992, pp. 1-13. 38. Cooper, Robin and Robert S . Kaplan, The Design of Cost Management Systems...Englewood Cliffs, NJ: Prentice Hall, 1991. 370 39. Cooper, Robin and Robert S . Kaplan, "How Cost Accounting Distorts Product Costs ," Management Accounting ... Cost /Management Accounting ," Management Accounting , Vol. 72, No. 4, pp. 48- 52. 58. Foster, George and Charles T. Horngren , "Flexible

IGSCC crack propagation rate measurement in BWR environments. Executive summary of a Round Robin study

International Nuclear Information System (INIS)

Andresen, Peter L.

1998-01-01

Five of the world's best laboratories at performing stress corrosion crack growth studies - ABB Atom AB, AEA Technology, GE Corporate Research and Development Center, Studsvik Material AB, and VTT Manufacturing Technology, were selected to participate in a round robin to evaluate the quality and reproducibility of testing conditions and resulting stress corrosion crack growth rates in sensitized type 304 stainless steel in 288 deg C water. Heat treated, machined and fatigue pre-cracked specimens were provided to all laboratories, and detailed test procedures prescribed the use of active loading, reversed dc potential drop crack monitoring, a common reference electrode supplied to all laboratories by GE CRD (to be used along side each laboratory's own reference electrode), and highly specified water chemistry conditions. The ability of each laboratory to achieve optimal testing conditions varied, although all laboratories achieved an impressive standard of testing control. The most significant laboratory-to-laboratory differences were associated with their ability to achieve high purity autoclave outlet water, reproduce accurate measurements of corrosion potential on the test specimen, and provide high resolution crack following using a reversed dc potential drop. However, the most notable outcome of the program is the consistent observation by all laboratories that initiating and sustaining stress corrosion crack growth at constant load in sensitized type 304 stainless steel is difficult, despite the use of a moderately high stress intensity, and high dissolved oxygen and corrosion potential conditions. Concerns for specimen machining and pre-cracking were identified, although these factors were not the sole cause of difficulty in initiating and sustaining stress corrosion cracking. It was shown that many phases of specimen preparation and testing can have a large influence on the measured SCC response. Even under the best test conditions it is critical to ensure

IGSCC crack propagation rate measurement in BWR environments. Executive summary of a Round Robin study

Energy Technology Data Exchange (ETDEWEB)

Andresen, Peter L. [GE Corporate Research and Development, Schenectady, NY (United States)

1998-12-31

Five of the world`s best laboratories at performing stress corrosion crack growth studies - ABB Atom AB, AEA Technology, GE Corporate Research and Development Center, Studsvik Material AB, and VTT Manufacturing Technology, were selected to participate in a round robin to evaluate the quality and reproducibility of testing conditions and resulting stress corrosion crack growth rates in sensitized type 304 stainless steel in 288 deg C water. Heat treated, machined and fatigue pre-cracked specimens were provided to all laboratories, and detailed test procedures prescribed the use of active loading, reversed dc potential drop crack monitoring, a common reference electrode supplied to all laboratories by GE CRD (to be used along side each laboratory`s own reference electrode), and highly specified water chemistry conditions. The ability of each laboratory to achieve optimal testing conditions varied, although all laboratories achieved an impressive standard of testing control. The most significant laboratory-to-laboratory differences were associated with their ability to achieve high purity autoclave outlet water, reproduce accurate measurements of corrosion potential on the test specimen, and provide high resolution crack following using a reversed dc potential drop. However, the most notable outcome of the program is the consistent observation by all laboratories that initiating and sustaining stress corrosion crack growth at constant load in sensitized type 304 stainless steel is difficult, despite the use of a moderately high stress intensity, and high dissolved oxygen and corrosion potential conditions. Concerns for specimen machining and pre-cracking were identified, although these factors were not the sole cause of difficulty in initiating and sustaining stress corrosion cracking. It was shown that many phases of specimen preparation and testing can have a large influence on the measured SCC response. Even under the best test conditions it is critical to ensure

Does contrast between eggshell ground and spot coloration affect egg rejection?

Science.gov (United States)

Dainson, Miri; Hauber, Mark E; López, Analía V; Grim, Tomáš; Hanley, Daniel

2017-08-01

Obligate avian brood parasitic species impose the costs of incubating foreign eggs and raising young upon their unrelated hosts. The most common host defence is the rejection of parasitic eggs from the nest. Both egg colours and spot patterns influence egg rejection decisions in many host species, yet no studies have explicitly examined the role of variation in spot coloration. We studied the American robin Turdus migratorius, a blue-green unspotted egg-laying host of the brown-headed cowbird Molothrus ater, a brood parasite that lays non-mimetic spotted eggs. We examined host responses to model eggs with variable spot coloration against a constant robin-mimetic ground colour to identify patterns of rejection associated with perceived contrast between spot and ground colours. By using avian visual modelling, we found that robins were more likely to reject eggs whose spots had greater chromatic (hue) but not achromatic (brightness) contrast. Therefore, egg rejection decision rules in the American robin may depend on the colour contrast between parasite eggshell spot and host ground coloration. Our study also suggests that egg recognition in relation to spot coloration, like ground colour recognition, is tuned to the natural variation of avian eggshell spot colours but not to unnatural spot colours.

Health Care Marketing at Keller Army Community Hospital West Point, New York

Science.gov (United States)

1982-08-01

p. 58 3 Robin S.E. MacStravic, "Market Research In Ambulatory Care," Journal of Ambulatory Care Management 4 (May, 1981), 37. 41bid. 5 "Should We... Kotler , Philip. Marketing for Nonprofit Organizations. Englewood Cliffs: Prentice-Hall, Inc., 1975. MacStravic, Robin E. Marketing Health Care. Germantown...they react to complaints, outside stimuli, or higher headquarters rather than take a proactive marketing approach to management . This study seeks to

Primary water stress corrosion cracks in nickel alloy dissimilar metal welds: Detection and sizing using established and emerging nondestructive examination techniques

International Nuclear Information System (INIS)

Braatz, B.G.; Doctor, S.R.; Cumblidge, S.E.; Prokofiev, I.G.

2012-01-01

The U.S. Nuclear Regulatory Commission has established the Program to Assess the Reliability of Emerging Nondestructive Techniques (PARENT) as a follow-on to the international cooperative Program for the Inspection of Nickel Alloy Components (PINC). The goal of PINC was to evaluate the capabilities of various nondestructive evaluation (NDE) techniques to detect and characterize surface-breaking primary water stress corrosion cracks in dissimilar-metal welds (DMW) in bottom-mounted instrumentation (BMI) penetrations and small-bore (∼400-mm diameter) piping components. A series of international blind round-robin tests were conducted by commercial and university inspection teams. Results from these tests showed that a combination of conventional and phased-array ultrasound techniques provided the highest performance for flaw detection and depth sizing in dissimilar metal piping welds. The effective detection of flaws in BMIs by eddy current and ultrasound shows that it may be possible to reliably inspect these components in the field. The goal of PARENT is to continue the work begun in PINC and apply the lessons learned to a series of open and blind international round-robin tests that will be conducted on a new set of piping components including large-bore (∼900-mm diameter) DMWs, small-bore DMWs, and BMIs. Open round-robin testing will engage universities and industry worldwide to investigate the reliability of emerging NDE techniques to detect and accurately size flaws having a wide range of lengths, depths, orientations, and locations. Blind round-robin testing will invite testing organizations worldwide, whose inspectors and procedures are certified by the standards for the nuclear industry in their respective countries, to investigate the ability of established NDE techniques to detect and size flaws whose characteristics range from easy to very difficult to detect and size. This paper presents highlights of PINC and reports on the plans and progress for

Primary Water Stress Corrosion Cracks in Nickel Alloy Dissimilar Metal Welds: Detection and Sizing Using Established and Emerging Nondestructive Examination Techniques

Energy Technology Data Exchange (ETDEWEB)

Braatz, Brett G.; Cumblidge, Stephen E.; Doctor, Steven R.; Prokofiev, Iouri

2012-12-31

The U.S. Nuclear Regulatory Commission has established the Program to Assess the Reliability of Emerging Nondestructive Techniques (PARENT) as a follow-on to the international cooperative Program for the Inspection of Nickel Alloy Components (PINC). The goal of PINC was to evaluate the capabilities of various nondestructive evaluation (NDE) techniques to detect and characterize surface-breaking primary water stress corrosion cracks in dissimilar-metal welds (DMW) in bottom-mounted instrumentation (BMI) penetrations and small-bore (≈400-mm diameter) piping components. A series of international blind round-robin tests were conducted by commercial and university inspection teams. Results from these tests showed that a combination of conventional and phased-array ultrasound techniques provided the highest performance for flaw detection and depth sizing in dissimilar metal piping welds. The effective detection of flaws in BMIs by eddy current and ultrasound shows that it may be possible to reliably inspect these components in the field. The goal of PARENT is to continue the work begun in PINC and apply the lessons learned to a series of open and blind international round-robin tests that will be conducted on a new set of piping components including large-bore (≈900-mm diameter) DMWs, small-bore DMWs, and BMIs. Open round-robin testing will engage universities and industry worldwide to investigate the reliability of emerging NDE techniques to detect and accurately size flaws having a wide range of lengths, depths, orientations, and locations. Blind round-robin testing will invite testing organizations worldwide, whose inspectors and procedures are certified by the standards for the nuclear industry in their respective countries, to investigate the ability of established NDE techniques to detect and size flaws whose characteristics range from easy to very difficult to detect and size. This paper presents highlights of PINC and reports on the plans and progress for

Experimental Shifts in Intraclutch Egg Color Variation Do Not Affect Egg Rejection in a Host of a Non-Egg-Mimetic Avian Brood Parasite

Science.gov (United States)

Croston, Rebecca; Hauber, Mark E.

2015-01-01

Avian brood parasites lay their eggs in the nests of other birds, and impose the costs associated with rearing parasitic young onto these hosts. Many hosts of brood parasites defend against parasitism by removing foreign eggs from the nest. In systems where parasitic eggs mimic host eggs in coloration and patterning, extensive intraclutch variation in egg appearances may impair the host’s ability to recognize and reject parasitic eggs, but experimental investigation of this effect has produced conflicting results. The cognitive mechanism by which hosts recognize parasitic eggs may vary across brood parasite hosts, and this may explain variation in experimental outcome across studies investigating egg rejection in hosts of egg-mimicking brood parasites. In contrast, for hosts of non-egg-mimetic parasites, intraclutch egg color variation is not predicted to co-vary with foreign egg rejection, irrespective of cognitive mechanism. Here we tested for effects of intraclutch egg color variation in a host of nonmimetic brood parasite by manipulating egg color in American robins (Turdus migratorius), hosts of brown-headed cowbirds (Molothrus ater). We recorded robins’ behavioral responses to simulated cowbird parasitism in nests where color variation was artificially enhanced or reduced. We also quantified egg color variation within and between unmanipulated robin clutches as perceived by robins themselves using spectrophotometric measures and avian visual modeling. In unmanipulated nests, egg color varied more between than within robin clutches. As predicted, however, manipulation of color variation did not affect rejection rates. Overall, our results best support the scenario wherein egg rejection is the outcome of selective pressure by a nonmimetic brood parasite, because robins are efficient rejecters of foreign eggs, irrespective of the color variation within their own clutch. PMID:25831051

Experimental evolution of an RNA virus in wild birds: evidence for host-dependent impacts on population structure and competitive fitness.

Directory of Open Access Journals (Sweden)

Nathan D Grubaugh

2015-05-01

Full Text Available Within hosts, RNA viruses form populations that are genetically and phenotypically complex. Heterogeneity in RNA virus genomes arises due to error-prone replication and is reduced by stochastic and selective mechanisms that are incompletely understood. Defining how natural selection shapes RNA virus populations is critical because it can inform treatment paradigms and enhance control efforts. We allowed West Nile virus (WNV to replicate in wild-caught American crows, house sparrows and American robins to assess how natural selection shapes RNA virus populations in ecologically relevant hosts that differ in susceptibility to virus-induced mortality. After five sequential passages in each bird species, we examined the phenotype and population diversity of WNV through fitness competition assays and next generation sequencing. We demonstrate that fitness gains occur in a species-specific manner, with the greatest replicative fitness gains in robin-passaged WNV and the least in WNV passaged in crows. Sequencing data revealed that intrahost WNV populations were strongly influenced by purifying selection and the overall complexity of the viral populations was similar among passaged hosts. However, the selective pressures that control WNV populations seem to be bird species-dependent. Specifically, crow-passaged WNV populations contained the most unique mutations (~1.7× more than sparrows, ~3.4× more than robins and defective genomes (~1.4× greater than sparrows, ~2.7× greater than robins, but the lowest average mutation frequency (about equal to sparrows, ~2.6× lower than robins. Therefore, our data suggest that WNV replication in the most disease-susceptible bird species is positively associated with virus mutational tolerance, likely via complementation, and negatively associated with the strength of selection. These differences in genetic composition most likely have distinct phenotypic consequences for the virus populations. Taken together

Determining health expectancies

National Research Council Canada - National Science Library

Robine, Jean-Marie

2003-01-01

... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Jean-Marie Robine, Carol Jagger, Colin D...

Comparación de tres técnicas de trazado retrógrado para la identificación del origen espinal del nervio ciático en ratón.

OpenAIRE

Myriam L. Velandia; José V. Montoya; Marlén Martínez; Sandra Perdomo; Jaime E. Castellanos

2002-01-01

En el presente trabajo se compararon tres técnicas para la aplicación de dos tipos de trazadores retrógrados fluorescentes (Dil y Fluorogold), con el fin de identificar las neuronas motoras y sensoriales que contribuyen con fibras al nervio ciático en ratones adultos. Se ensayó la aplicación de cristales directamente en el nervio, la inyección intraneural y la impregnación del nervio seccionado usando una cámara de silicona. La localización específica de las neuronas motoras en la médula espi...

Security in RFID and sensor networks

CERN Document Server

Kitsos, Paris

2009-01-01

Security in RFIDMulti-Tag RFID Systems, L. Bolotnyy and G. RobinsAttacking RFID Systems, P. Peris-Lopez, J.C. Hernandez-Castro, J.M. Estevez-Tapiador, and A. RibagordaRFID Relay Attacks: System Analysis,Modeling, and Implementation, A. Lima, A. Miri, and M. NevinsPhysical Privacy and Security in RFID Systems, L. Bolotnyy and G. RobinsAuthentication Protocols in RFID Systems, G. Pantelic, S. Bojanic, and V. TomaševicLightweight Cryptography for Low-Cost RFID Tags, P. Peris-Lopez, J.C.

Surry steam generator - examination and evaluation

International Nuclear Information System (INIS)

Clark, R.A.; Doctor, P.G.; Ferris, R.H.

1985-10-01

This report summarizes research conducted during the fourth year of the five year Steam Generator Group Project. During this period the project conducted numerous nondestructive examination (NDE) round robin inspections of the original Surry 2A steam generator. They included data acquisition/analysis and analysis-only round robins using multifrequency bobbin coil eddy current tests. In addition, the generator was nondestructively examined by alternate or advanced techniques including ultrasonics, optical fiber, profilometry and special eddy current instrumentation. The round robin interpretation data were compared. To validate the NDE results and for tube integrity testing, a selection of tubing samples, determined to be representative of the generator, was designated for removal. Initial sample removals from the generator included three sections of tube sheet, two sections of support plate and encompassed tubes, and a number of straight and U-bend tubing sections. Metallographic examination of these sections was initiated. Details of significant results are presented in the following paper. 13 figs

Preliminary Mass Spectrometric Analysis of Uranium on Environmental Swipe Materials

International Nuclear Information System (INIS)

Cheong, Chang-Sik; Jeong, Youn-Joong; Ryu, Jong-Sik; Shin, Hyung-Seon; Cha, Hyun-Ju; Ahn, Gil-Hoon; Park, Il-Jin; Min, Gyung-Sik

2006-01-01

It is well-known that uranium and plutonium isotopic compositions of safeguards samples are very useful to investigate the history of nuclear activities. To strengthen the capabilities of environmental sampling analysis in the ROK through MOST/DOE collaboration, round robin test for uranium and plutonium was designed in 2003. As the first round robin test, a set of dried uranium-containing solutions (∼35ng and (∼300ng) was distributed to the participating laboratories in November of 2003, with results reported in April of 2004. The KBSI (Korea Basic Science Institute) and ORNL (Oak Ridge National Laboratory) are currently in the process of analyzing uranium on cotton swipes for the second round robin test. As a preliminary test for the second round, KBSI intends to analyze home-made swipe samples into which international uranium standards are added. Here we describe technical steps of sample preparation and mass spectrometry at KBSI, and report some results of the preliminary test

The function of migratory bird calls

DEFF Research Database (Denmark)

Reichl, Thomas; Andersen, Bent Bach; Larsen, Ole Næsbye

The function of migratory bird calls: do they influence orientation and navigation?   Thomas Reichl1, Bent Bach Andersen2, Ole Naesbye Larsen2, Henrik Mouritsen1   1Institute of Biology, University of Oldenburg, Oldenburg, D-26111 Oldenburg, Germany 2Institute of Biology, University of Southern...... migration and to stimulate migratory restlessness in conspecifics. We wished to test if conspecific flight calls influence the flight direction of a nocturnal migrant, the European Robin (Erithacus rubecula), i.e. if flight calls help migrants keeping course. Wild caught birds showing migratory restlessness...... the experimental bird could be activated successively to simulate a migrating Robin cruising E-W, W-E, S-N or N-S at a chosen height (mostly about 40 m), at 10 m/s and emitting Robin flight calls of 80 dB(A) at 1 m. The simulated flight of a "ding" sound served as a control. During an experiment the bird was first...

Surry steam generator - examination and evaluation

Energy Technology Data Exchange (ETDEWEB)

Clark, R A; Doctor, P G; Ferris, R H

1987-01-01

This report summarizes research conducted during the fourth year of the five year Steam Generator Group Project. During this period the project conducted numerous nondestructive examination (NDE) round robin inspections of the original Surry 2A steam generator. They included data acquisition/analysis and analysis-only round robins using multifrequency bobbin coil eddy current tests. In addition, the generator was nondestructively examined by alternate or advanced techniques including ultrasonics, optical fiber, profilometry and special eddy current instrumentation. The round robin interpretation data were compared. To validate the NDE results and for tube integrity testing, a selection of tubing samples, determined to be representative of the generator, was designated for removal. Initial sample removals from the generator included three sections of tube sheet, two sections of support plate and encompassed tubes, and a number of straight and U-bend tubing sections. Metallographic examination of these sections was initiated. Details of significant results are presented in the following paper.

Memory for multiple cache locations and prey quantities in a food-hoarding songbird

Directory of Open Access Journals (Sweden)

Nicola eArmstrong

2012-12-01

Full Text Available Most animals can discriminate between pairs of numbers that are each less than four without training. However, North Island robins (Petroica longipes, a food hoarding songbird endemic to New Zealand, can discriminate between quantities of items as high as eight without training. Here we investigate whether robins are capable of other complex quantity discrimination tasks. We test whether their ability to discriminate between small quantities declines with 1. the number of cache sites containing prey rewards and 2. the length of time separating cache creation and retrieval (retention interval. Results showed that subjects generally performed above chance expectations. They were equally able to discriminate between different combinations of prey quantities that were hidden from view in 2, 3 and 4 cache sites from between 1, 10 and 60 seconds. Overall results indicate that North Island robins can process complex quantity information involving more than two discrete quantities of items for up to one minute long retention intervals without training.

EGFR T790M mutation testing of non-small cell lung cancer tissue and blood samples artificially spiked with circulating cell-free tumor DNA: results of a round robin trial.

Science.gov (United States)

Fassunke, Jana; Ihle, Michaela Angelika; Lenze, Dido; Lehmann, Annika; Hummel, Michael; Vollbrecht, Claudia; Penzel, Roland; Volckmar, Anna-Lena; Stenzinger, Albrecht; Endris, Volker; Jung, Andreas; Lehmann, Ulrich; Zeugner, Silke; Baretton, Gustavo; Kreipe, Hans; Schirmacher, Peter; Kirchner, Thomas; Dietel, Manfred; Büttner, Reinhard; Merkelbach-Bruse, Sabine

2017-10-01

The European Commision (EC) recently approved osimertinib for the treatment of adult patients with locally advanced or metastatic non-small-cell lung cancer (NSCLC) harboring EGFR T790M mutations. Besides tissue-based testing, blood samples containing cell-free circulating tumor DNA (ctDNA) can be used to interrogate T790M status. Herein, we describe the conditions and results of a round robin trial (RRT) for T790M mutation testing in NSCLC tissue specimens and peripheral blood samples spiked with cell line DNA mimicking tumor-derived ctDNA. The underlying objectives of this two-staged external quality assessment (EQA) approach were (a) to evaluate the accuracy of T790M mutations testing across multiple centers and (b) to investigate if a liquid biopsy-based testing for T790M mutations in spiked blood samples is feasible in routine diagnostic. Based on a successfully completed internal phase I RRT, an open RRT for EGFR T790M mutation testing in tumor tissue and blood samples was initiated. In total, 48 pathology centers participated in the EQA. Of these, 47 (97.9%) centers submitted their analyses within the pre-defined time frame and 44 (tissue), respectively, 40 (plasma) successfully passed the test. The overall success rates in the RRT phase II were 91.7% (tissue) and 83.3% (blood), respectively. Thirty-eight out of 48 participants (79.2%) successfully passed both parts of the RRT. The RRT for blood-based EGFR testing initiated in Germany is, to the best of our knowledge, the first of his kind in Europe. In summary, our results demonstrate that blood-based genotyping for EGFR resistance mutations can be successfully integrated in routine molecular diagnostics complementing the array of molecular methods already available at pathology centers in Germany.

Energy Optimization on the Battlefield: How Integrating Energy Efficient Technologies at the Tactical Level Can Reduce Fuel Consumption and Lessen the Burden of Fuel Logistics

Science.gov (United States)

2014-06-13

Alternative and Renewable fuels: FY10 NDAA, iv. 45Seth Robins, “Despite fracking boom, U.S. military still looks to biofuel over natural gas,” Stars...and Stripes, August 12, 2013, http://www.stripes.com/news/despite- fracking -boom-us-military-still-looks-to-biofuel-over-natural-gas-1.234403 (accessed...www.egsa.org/ LinkClick.aspx?fileticket=u3fZmFzYQD0%3D&tabid=262& (accessed April 29, 2014). Robins, Seth. “Despite fracking boom, U.S. military still

A numerical method for a model of two-phase flow in a coupled free flow and porous media system

KAUST Repository

Chen, Jie; Sun, Shuyu; Wang, Xiaoping

2014-01-01

In this article, we study two-phase fluid flow in coupled free flow and porous media regions. The model consists of coupled Cahn-Hilliard and Navier-Stokes equations in the free fluid region and the two-phase Darcy law in the porous medium region. We propose a Robin-Robin domain decomposition method for the coupled Navier-Stokes and Darcy system with the generalized Beavers-Joseph-Saffman condition on the interface between the free flow and the porous media regions. Numerical examples are presented to illustrate the effectiveness of this method. © 2014 Elsevier Inc.

Psychology departments in medical schools: there's one in Canada, eh?

Science.gov (United States)

McIlwraith, Robert D

2014-12-01

Comments on the original article by Robiner et al. (see record 2014-07939-001) regarding psychologists in medical schools and academic medical center settings. Robiner et al. reported that their extensive review "revealed no independent departments of psychology in U.S. medical schools." The current authors note north of the border in Canada there is one department of psychology in a medical school. The Department of Clinical Health Psychology has been a department within the Faculty of Medicine of the University of Manitoba since 1995. (PsycINFO Database Record (c) 2014 APA, all rights reserved).

Ex utero intrapartum treatment for an infant with cerebro-costo-mandibular syndrome.

Science.gov (United States)

Ogasawara, Kei; Honda, Yoshinobu; Hosoya, Mitsuaki

2014-08-01

Cerebro-costo-mandibular syndrome (CCMS) is a rare disorder characterized by multiple rib abnormalities, micrognathia described as Pierre-Robin sequence, and cerebral involvement. Appropriate management of respiratory distress immediately after birth is crucial to rescue these patients. A boy, having a mother with Pierre-Robin sequence and a sister with CCMS, was diagnosed prenatally with CCMS and successfully treated with ex utero intrapartum treatment (EXIT) at 36 weeks 6 days of gestation. EXIT would be an effective option for rescuing patients with prenatally diagnosed CCMS and preventing neonatal hypoxia. © 2014 Japan Pediatric Society.

Participation of the GRS in the 'Degraded piping program' of the USNRC

International Nuclear Information System (INIS)

Azodi, D.; Hoefler, A.; Sievers, J.

1989-01-01

During the course of the Degraded Piping Program, Battelle was the organizer of three round-robin activities for advanced elasto-plastic fracture mechanics calculations (e.g. finite element method and J-estimation scheme). GRS participated in all of them and submitted finite element and J-estimation scheme results. As a main result of round-robin on elasto-plastic fracture mechanics calculations: Based on finite element calculations, the J-integral method (energy release rate) provided the ability to describe the fracture behaviour of flawed piping even in a very ductile material. (orig./HP) [de

A numerical method for a model of two-phase flow in a coupled free flow and porous media system

KAUST Repository

Chen, Jie

2014-07-01

In this article, we study two-phase fluid flow in coupled free flow and porous media regions. The model consists of coupled Cahn-Hilliard and Navier-Stokes equations in the free fluid region and the two-phase Darcy law in the porous medium region. We propose a Robin-Robin domain decomposition method for the coupled Navier-Stokes and Darcy system with the generalized Beavers-Joseph-Saffman condition on the interface between the free flow and the porous media regions. Numerical examples are presented to illustrate the effectiveness of this method. © 2014 Elsevier Inc.

Post irradiation examination technology exchange

International Nuclear Information System (INIS)

Sozawa, Shizuo; Ito, Masayasu; Taguchi, Taketoshi; Nakagawa, Tetsuya; Lee, Hyung-Kwon

2012-01-01

Under the KAERI and JAEA agreement, in a part of the program 18 (Post Irradiation Examination (PIE) and Evaluation Technique of Irradiated Materials), an eddy current test was proposed as a round robin test, and it has been being progressed in both organizations in order to enhance the post irradiation examination technology. Up to now, several data are obtained by both PIE facilities. In this paper, the round robin test program is shown, and also shown obtained data with discussion from applicability as a nondestructive test in the hot cell. (author)

Size dimorphism, molt status, and body mass variation of Prairie Falcons nesting in the Snake River Birds of Prey National Conservation Area

Science.gov (United States)

Steenhof, Karen; McKinley, James O.

2006-01-01

Birds face challenges in how they allocate energy during the reproductive season. Most temperate zone species do not breed and molt at the same time, presumably because of the high energy demands of these two activities (Espie et al. 1996 and citations therein). However, representatives of at least four raptor genera are known to molt during the nesting season (Schmutz and Schmutz 1975, Newton and Marquiss 1982, Schmutz 1992, Espie et al. 1996). Molt strategies vary among raptor species depending on prey abundance, migration strategies, and the relative costs of reproduction. Sexually-dimorphic raptors typically have different roles in parenting, which result in different strategies for energy allocation. Male and female Eurasian Kestrels (Falco tinnunculus), for example, exhibit different molt patterns and mass changes during the breeding season (Village 1990). Prairie Falcons (Falco mexicanus) are similar to Eurasian Kestrels in that males provide most of the prey to females and young during the first part of the nesting season (Holthuijzen 1990), but no published data exist on molt patterns or mass changes in Prairie Falcons. Reliable information about raptor molt and morphometrics has important implications for modeling energetics and for understanding the role of sexes in raising young. Such knowledge also has practical application for distinguishing sexes of raptors and for determining appropriate size limits of transmitters used for telemetry studies. In this paper, we report on morphometric characteristics useful in distinguishing sexes of Prairie Falcons captured during several breeding seasons in the Snake River Birds of Prey National Conservation Area (NCA), and we assess changes in mass and molt status through the nesting season.

Round-Robin Streaming with Generations

DEFF Research Database (Denmark)

Li, Yao; Vingelmann, Peter; Pedersen, Morten Videbæk

2012-01-01

We consider three types of application layer coding for streaming over lossy links: random linear coding, systematic random linear coding, and structured coding. The file being streamed is divided into sub-blocks (generations). Code symbols are formed by combining data belonging to the same...

Using individual-condition measures to predict the long-term importance of habitat extent for population persistence.

Science.gov (United States)

Cosgrove, Anita J; McWhorter, Todd J; Maron, Martine

2017-10-01

Habitat loss and fragmentation are causing widespread population declines, but identifying how and when to intervene remains challenging. Predicting where extirpations are likely to occur and implementing management actions before losses result may be more cost-effective than trying to reestablish lost populations. Early indicators of pressure on populations could be used to make such predictions. Previous work conducted in 2009 and 2010 identified that the presence of Eastern Yellow Robins (Eopsaltria australis) in 42 sites in a fragmented region of eastern Australia was unrelated to woodland extent within 500 m of a site, but the robins' heterophil:lymphocyte (H:L) ratios (an indicator of chronic stress) were elevated at sites with low levels of surrounding woodland. We resurveyed these 42 sites in 2013 and 2014 for robin presence to determine whether the H:L ratios obtained in 2009 and 2010 predicted the locations of extirpations and whether the previous pattern in H:L ratios was an early sign that woodland extent would become an important predictor of occupancy. We also surveyed for robins at 43 additional sites to determine whether current occupancy could be better predicted by landscape context at a larger scale, relevant to dispersal movements. At the original 42 sites, H:L ratios and extirpations were not related, although only 4 extirpations were observed. Woodland extent within 500 m had become a strong predictor of occupancy. Taken together, these results provide mixed evidence as to whether patterns of individual condition can reveal habitat relationships that become evident as local shifts in occupancy occur but that are not revealed by a single snapshot of species distribution. Across all 85 sites, woodland extent at scales relevant to dispersal (5 km) was not related to occurrence. We recommend that conservation actions focus on regenerating areas of habitat large enough to support robin territories rather than increasing connectivity within the

Quando o direito à informação colide com a segurança nacional

OpenAIRE

Alburquerque, Maria João; Moura, Rui

2015-01-01

Existe um equilíbrio, difícil de alcançar, entre o direito à informação e a segurança da sociedade. O primeiro diz respeito à liberdade de criar, armazenar e partilhar conhecimento, fator essencial para o desenvolvimento civilizacional. Mas o livre acesso à informação pode colocar em risco a segurança do Estado, das populações, das instalações críticas e do território. A civilização apenas terá futuro se for resiliente às ameaças e ataques de espiões, terroristas e criminosos. Enquanto o assu...

Chips with everything

CERN Document Server

CERN. Geneva

2007-01-01

In March 1972, Sir Robin Saxby gave a talk to the Royal Television Society called 'TV and Chips' about a 'state of the art' integrated circuit, containing 50 resistors and 50 transistors. Today's 'state of the art' chips contain up to a billion transistors. This enormous leap forward illustrates how dramatically the semiconductor industry has evolved in the past 34 years. The next 10 years are predicted to bring times of turbulent change for the industry, as more and more digital devices are used around the world. In this talk, Sir Robin will discuss the history of the Microchip Industry in parallel with ARM's history, demonstrating how a small European start-up can become a world player in the IT sector. He will also present his vision of important applications and developments in the next 20 years that are likely to become even more pervasive than the mobile phone is today, and will provide anecdotes and learning points from his own experience at ARM. About ARM: Sir Robin and a group of designers from Acorn...

VAMAS Nb3Sn test conductor

International Nuclear Information System (INIS)

Anon.

1994-01-01

A bronze-process Nb 3 Sn conductor was measured as part of the second VAMAS (Versailles Project on Advanced Materials and Standards) international critical-current round robin. The conductor specifications are given in Table 15. The critical current was measured as a function of magnetic field and axial tensile strain. The measured data are presented in Table 16 and in Figs. 23 and 24. The I c and J c values are based on an electric field criterion (E c ) of 1 μV/cm. In the first VAMAS round robin tests, differences in the test specimens' axial strain, caused by variations in the thermal contraction of different test fixtures, was a major source of interlaboratory variation in the critical-current data. Consequently, electromechanical characterization of the test specimen is important for data interpretation and error analysis. In the second round robin, the test apparatus and procedure were more rigidly specified. This increased experimental control reduced the critical-current variation by a factor of 3.5. The results of our measurements will be published in the final VAMAS report

ROS Installation and Commissioning

CERN Multimedia

Gorini, B

The ATLAS Readout group (a sub-group of TDAQ) has now completed the installation and commissioning of all of the Readout System (ROS) units. Event data from ATLAS is initially handled by detector specific hardware and software, but following a Level 1 Accept the data passes from the detector specific Readout Drivers (RODs) to the ROS, the first stage of the central ATLAS DAQ. Within the final ATLAS TDAQ system the ROS stores the data and on request makes it available to the Level 2 Trigger (L2) processors and to the Event Builder (EB) as required. The ROS is implemented as a large number of PCs housing custom built cards (ROBINs) and running custom multi-threaded software. Each ROBIN card (shown below) contains buffer memories to store the data, plus a field programmable gate array ( FPGA ) and an embedded PowerPC processor for management of the memories and data requests, and is implemented as a 64-bit 66 MHz PCI card. Both the software and the ROBIN cards have been designed and developed by the Readout g...

RF generator interlock by plasma grid bias current - An alternate to Hα interlock

Science.gov (United States)

Bandyopadhyay, M.; Gahlaut, A.; Yadav, R. K.; Pandya, K.; Tyagi, H.; Vupugalla, M.; Bhuyan, M.; Bhagora, J.; Chakraborty, A.

2017-08-01

ROBIN is inductively coupled plasma (ICP) based negative hydrogen ion source, operated with a 100kW, 1MHz Tetrode based RF generator (RFG). Inductive plasma ignition by the RFG in ROBIN is associated with electron seeding by a hot filament and a gas puff. RFG is triggered by the control system to deliver power just at the peak pressure of the gas puff. Once plasma is ignited due to proper impedance matching, a bright light, dominated by Hα (˜656nm wavelength) radiation is available inside RF driver which is used as a feedback signal to the RFG to continue its operation. If impedance matching is not correct, plasma is not produced due to lack of power coupling and bright light is not available. During such condition, reflected RF power may damage the RFG. Therefore, to protect the RFG, it needs to be switched off automatically within 200ms by the control system in such cases. This plasma light based RFG interlock is adopted from BATMAN ion source. However, in case of vacuum immersed RF ion source in reactor grade NBI system, such plasma light based interlock may not be feasible due to lack of adequate optical fiber interfaces. In reactor grade NBI system, neutron and gamma radiations have impact on materials which may lead to frequent maintenance and machine down time. The present demonstration of RFG interlock by Bias Current (BC) in ROBIN testbed gives an alternate option in this regard. In ROBIN, a bias plate (BP) is placed in the plasma chamber near the plasma grid (PG). BP is electrically connected to the plasma chamber wall of the ion source and PG is isolated from the wall. A high current ˜85 A direct current (DC) power supply of voltage in the range of 0 - 33V is connected between the PG and the BP in such a way that PG can be biased positively with respect to the BP or plasma chamber. This arrangement is actually made to absorb electrons and correspondingly reduce co-extracted electron current during beam extraction. However, in case of normal plasma

Use of ESPI in hemodynamics: a means of visualizing vessel blood flow

Science.gov (United States)

Tyrer, John R.; Versteeg, Henk K.

1992-08-01

The successful development of total hip replacement as an effective surgical technique has been one of the most significant advances in modern orthopaedics. The method has superseded the traditional forms of treatment for hip fractures which involve extensive nailing across the site of the break. However, clinical experience has highlighted failures in both the implant and surrounding bone which have often been attributed to mechanical causes. The problem of optimizing the performance of an implant is very complex and includes a number of interrelated factors: fixation to the bone, strength of the prosthesis itself, wear of articulating surfaces, kinematic requirements, energy absorption, effect of implant position and bone structure in the surrounding area. This paper reports attempts to establish a test facility which can accurately model these parameters and monitor their effects with the intention of providing information for the orthopaedic field. Areas of interest that are intended to be examined include: the effect of bone preservation methods on the bone's strength and weight-bearing characteristics, the effects of medical conditions on bone strength, such as osteoporosis, and the effect of the patient's diet on bone character.

Responses of two marine top predators to an offshore wind farm.

Science.gov (United States)

Vallejo, Gillian C; Grellier, Kate; Nelson, Emily J; McGregor, Ross M; Canning, Sarah J; Caryl, Fiona M; McLean, Nancy

2017-11-01

Quantifying the likely effects of offshore wind farms on wildlife is fundamental before permission for development can be granted by any Determining Authority. The effects on marine top predators from displacement from important habitat are key concerns during offshore wind farm construction and operation. In this respect, we present evidence for no significant displacement from a UK offshore wind farm for two broadly distributed species of conservation concern: common guillemot ( Uria aalge ) and harbor porpoise ( Phocoena phocoena ). Data were collected during boat-based line transect surveys across a 360 km 2 study area that included the Robin Rigg offshore wind farm. Surveys were conducted over 10 years across the preconstruction, construction, and operational phases of the development. Changes in guillemot and harbor porpoise abundance and distribution in response to offshore wind farm construction and operation were estimated using generalized mixed models to test for evidence of displacement. Both common guillemot and harbor porpoise were present across the Robin Rigg study area throughout all three development phases. There was a significant reduction in relative harbor porpoise abundance both within and surrounding the Robin Rigg offshore wind farm during construction, but no significant difference was detected between the preconstruction and operational phases. Relative common guillemot abundance remained similar within the Robin Rigg offshore wind farm across all development phases. Offshore wind farms have the potential to negatively affect wildlife, but further evidence regarding the magnitude of effect is needed. The empirical data presented here for two marine top predators provide a valuable addition to the evidence base, allowing future decision making to be improved by reducing the uncertainty of displacement effects and increasing the accuracy of impact assessments.

Robins AFB, Warner Robins, Georgia. Revised Uniform Summary of Surface Weather Observations (RUSSWO). Parts A-F

Science.gov (United States)

1979-08-31

CONDITIONSEOFWEAHE CONDI!T IONS FRWJ4 HOUR~LY ORSIURVAT IONS MNH HOURS THNE*AAIN FREEZING SNOW % OF SMOKE BOIG DUST % OF OBS ’TOTALMONT THUNDEORS AD...MAY JUN. JUL AUG, SEP OCT NOV, DEC. MONTHYEAR MNH 79 6.26 8.66 I -4 MEN if 3* 5 __________ 4.79Z_____ 3.16--____ 3___482___ __________ _________ 18K

Blue tilapia (Oreochromis aureus) predation on fishes in the Muddy River system, Clark County, Nevada

Science.gov (United States)

Scoppettone, G.G.; Salgado, J.A.; Nielsen, M.B.

2005-01-01

Blue tilapia (Oreochromis aureus), native to North Africa and the Middle East (Courtenay and Robins 1973, Fuller et al. 1999), has been introduced around the world as a human food source, for vegetation control, and as a game fish (Costa-Pierce and Riedel 2000). Blue tilapia has been particularly successful in establishing and spreading in North American waters where it has been reported to change fish community structure and cause native fish decline (Courtenay and Robins 1973, Fuller et al. 1999). Because of these detrimental effects, it is now generally considered an unwelcome introduction into North American waters (Dill and Cordone 1997, Fuller et al. 1999).

The PISC programme on defective steam generator tubes inspection. A status report

International Nuclear Information System (INIS)

Birac, C.; Comby, R.; Maciga, G.; Von Estorff, U.; Zanella, G.L.

1994-06-01

The general objective of the PISC Program (Programme for the Inspection of Steel Components) is to assess experimentally procedures and techniques in use for the in-service inspection of pressure components. The program is mainly a round robin test, the results of which are compared with real characteristics of the flaws obtained by destructive analysis. Materials tested are INCONEL 600 tubes, diameter 22.22 mm, wall thickness 1.27 mm. The technique applied is eddy current testing. The program of capability tests on loose tubes was started in 1990, the round robin tests ended in 1993. The preliminary results are presented. (R.P.). 8 refs., 9 figs., 4 tabs

Send a wire to robin | News

Science.gov (United States)

Financial Officer Finance Section Office of the Chief Operating Officer Facilities Engineering Services Accelerator Division Accelerator Physics Center Office of the Chief Safety Officer Environment, Safety, Health and Quality Section Office of the Chief Project Officer Office of Project Support Services Office of

Keskkonnakatastroofid : ASEM alustab tegevust / Robin Cook

Index Scriptorium Estoniae

Cook, Robin

1998-01-01

Aasia-Euroopa riikide tippkohtumisel kirjutavad ASEM-i liidrid alla programmile, mille kohaselt Euroopa riigid aitavad Kagu-Aasia riike toimetulekul keskkonnakatastroofidega. Aasia ja Euroopa ühise keskkonna tehnoloogiakeskuse loomine

Using 3D printed eggs to examine the egg-rejection behaviour of wild birds

Directory of Open Access Journals (Sweden)

Branislav Igic

2015-05-01

Full Text Available The coevolutionary relationships between brood parasites and their hosts are often studied by examining the egg rejection behaviour of host species using artificial eggs. However, the traditional methods for producing artificial eggs out of plasticine, plastic, wood, or plaster-of-Paris are laborious, imprecise, and prone to human error. As an alternative, 3D printing may reduce human error, enable more precise manipulation of egg size and shape, and provide a more accurate and replicable protocol for generating artificial stimuli than traditional methods. However, the usefulness of 3D printing technology for egg rejection research remains to be tested. Here, we applied 3D printing technology to the extensively studied egg rejection behaviour of American robins, Turdus migratorius. Eggs of the robin’s brood parasites, brown-headed cowbirds, Molothrus ater, vary greatly in size and shape, but it is unknown whether host egg rejection decisions differ across this gradient of natural variation. We printed artificial eggs that encompass the natural range of shapes and sizes of cowbird eggs, painted them to resemble either robin or cowbird egg colour, and used them to artificially parasitize nests of breeding wild robins. In line with previous studies, we show that robins accept mimetically coloured and reject non-mimetically coloured artificial eggs. Although we found no evidence that subtle differences in parasitic egg size or shape affect robins’ rejection decisions, 3D printing will provide an opportunity for more extensive experimentation on the potential biological or evolutionary significance of size and shape variation of foreign eggs in rejection decisions. We provide a detailed protocol for generating 3D printed eggs using either personal 3D printers or commercial printing services, and highlight additional potential future applications for this technology in the study of egg rejection.

Using 3D printed eggs to examine the egg-rejection behaviour of wild birds

Science.gov (United States)

Nunez, Valerie; Voss, Henning U.; Croston, Rebecca; Aidala, Zachary; López, Analía V.; Van Tatenhove, Aimee; Holford, Mandë E.; Shawkey, Matthew D.; Hauber, Mark E.

2015-01-01

The coevolutionary relationships between brood parasites and their hosts are often studied by examining the egg rejection behaviour of host species using artificial eggs. However, the traditional methods for producing artificial eggs out of plasticine, plastic, wood, or plaster-of-Paris are laborious, imprecise, and prone to human error. As an alternative, 3D printing may reduce human error, enable more precise manipulation of egg size and shape, and provide a more accurate and replicable protocol for generating artificial stimuli than traditional methods. However, the usefulness of 3D printing technology for egg rejection research remains to be tested. Here, we applied 3D printing technology to the extensively studied egg rejection behaviour of American robins, Turdus migratorius. Eggs of the robin’s brood parasites, brown-headed cowbirds, Molothrus ater, vary greatly in size and shape, but it is unknown whether host egg rejection decisions differ across this gradient of natural variation. We printed artificial eggs that encompass the natural range of shapes and sizes of cowbird eggs, painted them to resemble either robin or cowbird egg colour, and used them to artificially parasitize nests of breeding wild robins. In line with previous studies, we show that robins accept mimetically coloured and reject non-mimetically coloured artificial eggs. Although we found no evidence that subtle differences in parasitic egg size or shape affect robins’ rejection decisions, 3D printing will provide an opportunity for more extensive experimentation on the potential biological or evolutionary significance of size and shape variation of foreign eggs in rejection decisions. We provide a detailed protocol for generating 3D printed eggs using either personal 3D printers or commercial printing services, and highlight additional potential future applications for this technology in the study of egg rejection. PMID:26038720

Determining health expectancies

National Research Council Canada - National Science Library

Robine, Jean-Marie

2003-01-01

... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Jean-Marie Robine 9 1 Increase in Life Expectancy and Concentration of Ages at Death . . . . France Mesle´ and Jacques Vallin 13 2 Compression of Morbidity...

Coupling two-phase fluid flow with two-phase darcy flow in anisotropic porous media

KAUST Repository

Chen, J.

2014-06-03

This paper reports a numerical study of coupling two-phase fluid flow in a free fluid region with two-phase Darcy flow in a homogeneous and anisotropic porous medium region. The model consists of coupled Cahn-Hilliard and Navier-Stokes equations in the free fluid region and the two-phase Darcy law in the anisotropic porous medium region. A Robin-Robin domain decomposition method is used for the coupled Navier-Stokes and Darcy system with the generalized Beavers-Joseph-Saffman condition on the interface between the free flow and the porous media regions. Obtained results have shown the anisotropic properties effect on the velocity and pressure of the two-phase flow. 2014 Jie Chen et al.

Coupling Two-Phase Fluid Flow with Two-Phase Darcy Flow in Anisotropic Porous Media

Directory of Open Access Journals (Sweden)

Jie Chen

2014-06-01

Full Text Available This paper reports a numerical study of coupling two-phase fluid flow in a free fluid region with two-phase Darcy flow in a homogeneous and anisotropic porous medium region. The model consists of coupled Cahn-Hilliard and Navier-Stokes equations in the free fluid region and the two-phase Darcy law in the anisotropic porous medium region. A Robin-Robin domain decomposition method is used for the coupled Navier-Stokes and Darcy system with the generalized Beavers-Joseph-Saffman condition on the interface between the free flow and the porous media regions. Obtained results have shown the anisotropic properties effect on the velocity and pressure of the two-phase flow.

Nobeli auhinna tõi Helicobacter pylori / Juhan Kaldre

Index Scriptorium Estoniae

Kaldre, Juhan

2005-01-01

Nobeli meditsiiniauhind määrati sel aastal Austraalia teadlastele Robin Warrenile ja Barry Marshallile, kes avastasid, et gastriit ning peptiline haavand tekib Helicobacter pylori infektsiooni tulemusena

Fuel quality control: Five years of activity in laboratories

International Nuclear Information System (INIS)

Bettinelli, M.; Cimini, G.; Durello, G.; Lucchesi, P.L.

1991-01-01

A description of how ENEL (Italian National Electricity Board) carries out the activity of fuel quality control is given, and the results of the Round Robin circuit which has been operating for five years in laboratories regulary performing the control analyses of these products are reported. The laboratories taking part in the Round Robin circuit are 41 (out of which 35 are ENEL laboratories and 6 are owned by external companies) and they are situated throughout Italy; the controlled parameters are the following: heat of combustion (PCS), sulphur (S), vanadium (V) and asphaltenes (ASF); the adopted methods are the official ASTM or IP ones. The statistical analysis of the results has permitted, for every parameter, the calculation of the repeatability and the reproducibility which, in most cases, have turned out to be in keeping with the values provided for in the regulations. Among the collateral initiatives promoted in the framework of this Round Robin, the following are reported: preparation of standards of fuel oil with a known content of a sulphur and vanadium; expediting visits to all the ENEL laboratories participating in the RRT; publication of a handbook of the adopted analysis methods (in Italian); definition of guide-lines on the right selection of new automatic equipment

Lateralization of the Avian Magnetic Compass: Analysis of Its Early Plasticity

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Dennis Gehring

2017-05-01

Full Text Available In European Robins, Erithacus rubecula, the magnetic compass is lateralized in favor of the right eye/left hemisphere of the brain. This lateralization develops during the first winter and initially shows a great plasticity. During the first spring migration, it can be temporarily removed by covering the right eye. In the present paper, we used the migratory orientation of robins to analyze the circumstances under which the lateralization can be undone. Already a period of 1½ h being monocularly left-eyed before tests began proved sufficient to restore the ability to use the left eye for orientation, but this effect was rather short-lived, as lateralization recurred again within the next 1½ h. Interpretable magnetic information mediated by the left eye was necessary for removing the lateralization. In addition, monocularly, the left eye seeing robins could adjust to magnetic intensities outside the normal functional window, but this ability was not transferred to the “right-eye system”. Our results make it clear that asymmetry of magnetic compass perception is amenable to short-term changes, depending on lateralized stimulation. This could mean that the left hemispheric dominance for the analysis of magnetic compass information depends on lateralized interhemispheric interactions that in young birds can swiftly be altered by environmental effects.

75 FR 50932 - Massachusetts: Final Authorization of State Hazardous Waste Management Program Revisions

Science.gov (United States)

2010-08-18

...: Final Authorization of State Hazardous Waste Management Program Revisions AGENCY: Environmental...-1990. FOR FURTHER INFORMATION CONTACT: Robin Biscaia, RCRA Waste Management Section, Office of Site... final [[Page 50933

Hansapank is the best Baltic brand / Aigars Rungis

Index Scriptorium Estoniae

Rungis, Aigars

2003-01-01

Eesti, Läti ja Leedu ettevõtete turundustegevusest Baltimaades. Kommenteerivad Robin K. Rindehed, Kristiina Kõiv, Margus Sameli ja Kaarel Karu. Vt. samas intervjuud Põlva Piima turundusjuhi Sven Puussepaga

Cracking in autoclaved aerated concrete: Experimental investigation and XFEM modeling

International Nuclear Information System (INIS)

Ferretti, D.; Michelini, E.; Rosati, G.

2015-01-01

The paper aims to investigate and model cracking development in beams and deep-beams made of autoclaved aerated concrete (AAC). Fracture mechanics of AAC has been first studied by performing three-point bending tests on beams, similar to those commonly used for ordinary concrete elements. In some of these tests, crack growth has been also monitored by using ESPI laser technique. In this way, it has been possible to calibrate the main parameters of a proper cohesive law by means of extended finite element inverse analysis. Subsequently, cracking tests have been also performed on deep-beams, whose behavior is more representative of full scale walls. To validate the proposed cohesive law, deep-beam experimental behavior has been finally simulated through XFEM

Cracking in autoclaved aerated concrete: Experimental investigation and XFEM modeling

Energy Technology Data Exchange (ETDEWEB)

Ferretti, D., E-mail: daniele.ferretti@unipr.it [Department of Civil, Environmental, Land Management Engineering and Architecture, University of Parma, P.co Area delle Scienze 181/A, 43124 Parma (Italy); Michelini, E. [Department of Civil, Environmental, Land Management Engineering and Architecture, University of Parma, P.co Area delle Scienze 181/A, 43124 Parma (Italy); Rosati, G. [Department of Civil and Environmental Engineering, Politecnico di Milano, Piazza L. Da Vinci 32, 20133 Milano (Italy)

2015-01-15

The paper aims to investigate and model cracking development in beams and deep-beams made of autoclaved aerated concrete (AAC). Fracture mechanics of AAC has been first studied by performing three-point bending tests on beams, similar to those commonly used for ordinary concrete elements. In some of these tests, crack growth has been also monitored by using ESPI laser technique. In this way, it has been possible to calibrate the main parameters of a proper cohesive law by means of extended finite element inverse analysis. Subsequently, cracking tests have been also performed on deep-beams, whose behavior is more representative of full scale walls. To validate the proposed cohesive law, deep-beam experimental behavior has been finally simulated through XFEM.

Alaska State Commission for Human Rights

Science.gov (United States)

Harassment Poster Filing a Complaint with the Commission Public Hearing Cases Accusations Decisions Public . vs. Anchorage Plumbing and Heating Vilma Anderson vs. Anchorage School District Robin Block vs. Pulse

75 FR 5628 - National Register of Historic Places; Notification of Pending Nominations and Related Actions

Science.gov (United States)

2010-02-03

... Robin Way and Pierce Rd., Altus, 10000033 Stone County North Sylamore Creek Bridge (Historic Bridges of...., Glen Ellyn, 10000038 MASSACHUSETTS Essex County First Parish Burial Ground, 122-R Centennial Ave...

Ecological relationships between feather mites (Acari and wild birds of Emberizidae (Aves in a fragment of Atlantic Forest in northeastern Brazil

Directory of Open Access Journals (Sweden)

Lyra-Neves Rachel M. de

2003-01-01

Full Text Available The objective of this study was to investigate feather mites on birds of the Family Emberizidae, to collect data on the ecological ectoparasite-host relationship and infestation level. A sum of 94 birds of 9 species was captured at the Refúgio Ecológico Charles Darwin, Igarassú, Pernambuco, Brazil, from August 1996 to July 1997. Five genera of mites from the superfamily Analgoidea were identified: Analges Nitzsch, 1818; Mesalgoides Gaud & Atyeo, 1967; Pterodectes Robin, 1877; Proctophyllodes Robin, 1877 and Trouessartia Canestrini, 1899. Among the 94 birds examined, 92 (97,87% were infested. Regarding the prevalence, it was observed that the genera with higher percentage were, respectively, Pterodectes (88,04%, Proctophyllodes (56,52% and Trouessartia (45,65%.

Presidential Green Chemistry Challenge: 2005 Academic Award

Science.gov (United States)

Presidential Green Chemistry Challenge 2005 award winner, Professor Robin D. Rogers, used ionic liquids to dissolve and process cellulose from wood, cloth, or paper to make new biorenewable or biocompatible materials.

Forensic mental health services: Current service provision and ...

African Journals Online (AJOL)

Forensic mental health services: Current service provision and planning for a prison mental health service in the Eastern Cape. Kiran Sukeri, Orlando A. Betancourt, Robin Emsley, Mohammed Nagdee, Helmut Erlacher ...

D : disainialfabeet / Kai Lobjakas

Index Scriptorium Estoniae

Lobjakas, Kai, 1975-

2006-01-01

Inglise disainerid Lucienne Day (s. 1917), Robin Day (s. 1915), Tom Dixon (s. 1959) ja ameerika disainer Henry Dreyfuss (1903-1972). Hollandi disainiajakirjast "De Stijl" ja disainirühmitusest "Droog" (asut. 1993)

Campylobacter jejuni Colonization in Wild Birds: Results from an Infection Experiment

Science.gov (United States)

Waldenström, Jonas; Axelsson-Olsson, Diana; Olsen, Björn; Hasselquist, Dennis; Griekspoor, Petra; Jansson, Lena; Teneberg, Susann; Svensson, Lovisa; Ellström, Patrik

2010-01-01

Campylobacter jejuni is a common cause of bacterial gastroenteritis in most parts of the world. The bacterium has a broad host range and has been isolated from many animals and environments. To investigate shedding patterns and putative effects on an avian host, we developed a colonization model in which a wild bird species, the European Robin Erithacus rubecula, was inoculated orally with C. jejuni from either a human patient or from another wild bird species, the Song Thrush Turdus philomelos. These two isolates were genetically distinct from each other and provoked very different host responses. The Song Thrush isolate colonized all challenged birds and colonization lasted 6.8 days on average. Birds infected with this isolate also showed a transient but significant decrease in body mass. The human isolate did not colonize the birds and could be detected only in the feces of the birds shortly after inoculation. European Robins infected with the wild bird isolate generated a specific antibody response to C. jejuni membrane proteins from the avian isolate, which also was cross-reactive to membrane proteins of the human isolate. In contrast, European Robins infected with the human isolate did not mount a significant response to bacterial membrane proteins from either of the two isolates. The difference in colonization ability could indicate host adaptations. PMID:20140204

Variation in the structure of bird nests between northern Manitoba and southeastern Ontario.

Directory of Open Access Journals (Sweden)

Carla A Crossman

Full Text Available Traits that converge in appearance under similar environmental conditions among phylogenetically independent lineages are thought to represent adaptations to local environments. We tested for convergence in nest morphology and composition of birds breeding in two ecologically different locations in Canada: Churchill in northern Manitoba and Elgin in southeastern Ontario. We examined nests from four families of passerine birds (Turdidae: Turdus, Parulidae: Dendroica, Emberizidae: Passerculus and Fringillidae: Carduelis where closely related populations or species breed in both locations. Nests of American Robins, Yellow Warblers, and Carduelis finches had heavier nest masses, and tended to have thicker nest-walls, in northern Manitoba compared with conspecifics or congenerics breeding in southeastern Ontario. Together, all species showed evidence for wider internal and external nest-cup diameters in northern Manitoba, while individual species showed varying patterns for internal nest-cup and external nest depths. American Robins, Yellow Warblers, and Carduelis finches in northern Manitoba achieved heavier nest masses in different ways. American Robins increased all materials in similar proportions, and Yellow Warblers and Common Redpolls used greater amounts of select materials. While changes in nest composition vary uniquely for each species, the pattern of larger nests in northern Manitoba compared to southeastern Ontario in three of our four phylogenetically-independent comparisons suggests that birds are adapting to similar selective pressures between locations.

Variation in the structure of bird nests between northern Manitoba and southeastern Ontario.

Science.gov (United States)

Crossman, Carla A; Rohwer, Vanya G; Martin, Paul R

2011-04-28

Traits that converge in appearance under similar environmental conditions among phylogenetically independent lineages are thought to represent adaptations to local environments. We tested for convergence in nest morphology and composition of birds breeding in two ecologically different locations in Canada: Churchill in northern Manitoba and Elgin in southeastern Ontario. We examined nests from four families of passerine birds (Turdidae: Turdus, Parulidae: Dendroica, Emberizidae: Passerculus and Fringillidae: Carduelis) where closely related populations or species breed in both locations. Nests of American Robins, Yellow Warblers, and Carduelis finches had heavier nest masses, and tended to have thicker nest-walls, in northern Manitoba compared with conspecifics or congenerics breeding in southeastern Ontario. Together, all species showed evidence for wider internal and external nest-cup diameters in northern Manitoba, while individual species showed varying patterns for internal nest-cup and external nest depths. American Robins, Yellow Warblers, and Carduelis finches in northern Manitoba achieved heavier nest masses in different ways. American Robins increased all materials in similar proportions, and Yellow Warblers and Common Redpolls used greater amounts of select materials. While changes in nest composition vary uniquely for each species, the pattern of larger nests in northern Manitoba compared to southeastern Ontario in three of our four phylogenetically-independent comparisons suggests that birds are adapting to similar selective pressures between locations.

Variation in the Structure of Bird Nests between Northern Manitoba and Southeastern Ontario

Science.gov (United States)

Crossman, Carla A.; Rohwer, Vanya G.; Martin, Paul R.

2011-01-01

Traits that converge in appearance under similar environmental conditions among phylogenetically independent lineages are thought to represent adaptations to local environments. We tested for convergence in nest morphology and composition of birds breeding in two ecologically different locations in Canada: Churchill in northern Manitoba and Elgin in southeastern Ontario. We examined nests from four families of passerine birds (Turdidae: Turdus, Parulidae: Dendroica, Emberizidae: Passerculus and Fringillidae: Carduelis) where closely related populations or species breed in both locations. Nests of American Robins, Yellow Warblers, and Carduelis finches had heavier nest masses, and tended to have thicker nest-walls, in northern Manitoba compared with conspecifics or congenerics breeding in southeastern Ontario. Together, all species showed evidence for wider internal and external nest-cup diameters in northern Manitoba, while individual species showed varying patterns for internal nest-cup and external nest depths. American Robins, Yellow Warblers, and Carduelis finches in northern Manitoba achieved heavier nest masses in different ways. American Robins increased all materials in similar proportions, and Yellow Warblers and Common Redpolls used greater amounts of select materials. While changes in nest composition vary uniquely for each species, the pattern of larger nests in northern Manitoba compared to southeastern Ontario in three of our four phylogenetically-independent comparisons suggests that birds are adapting to similar selective pressures between locations. PMID:21552515

Pean saama Eurovisioonile, muidu suren 2010 / Tiiu Laks

Index Scriptorium Estoniae

Laks, Tiiu, 1984-

2010-01-01

12. märtsil Nokia kontserdimajas toimunud konkursi Eesti laul 2010 finaalkontserdist, saatejuhtidest Ott Sepast ja Märt Avandist, Madis Aesma loodud Pean saama Eurovisioonile, muidu suren 2010 lugudest. Robin Juhkentali võidulaulust

19. ja 20. IV toimub Tartu kõrgemas kunstikoolis...

Index Scriptorium Estoniae

2002-01-01

Konverentsi "Sharing the Future?", mis on pühendatud foto ja uue meedia hariduse küsimustele endises Ida-Euroopas, kava. Inglise fotograafi Robin Dance'i isiknäitus "Jaapani maastikud" Sebra galeriis

Characterization of the Low Level Waste Reference Glass (LRM)

International Nuclear Information System (INIS)

Peeler, D.

1999-01-01

'The Savannah River Technology Center (SRTC) has participated in a round robin testing program which was conducted under the auspices of the Department of Energy''s (DOE) Tanks Focus Area (TFA) for Immobilization.'

Spermasõjas surma ei saa / Kati Murutar

Index Scriptorium Estoniae

Murutar, Kati, 1967-

2003-01-01

Eesti keeles ilmunud perekonnaõpetuse ja seksuaalkäitumise teemalisest raamatust "Spermasõjad", mille autoriks on zooloog Robin Baker. Raamatu teemal arutlesid ämmaemand Siiri Põllumaa, bioloog Georg Aher ja naistearst Andrei Sõritsa

Significance of MRI Perivascular Spaces in MS

Directory of Open Access Journals (Sweden)

J Gordon Millichap

2008-10-01

Full Text Available The role of perivascular Virchow-Robin spaces was investigated in 45 multiple sclerosis (MS patients and 30 healthy controls, in a study at Charite-Universitaetsmedizin Berlin, and Goethe University, Frankfurt.

Evaluation of changes in sleep breathing patterns after primary palatoplasty in cleft children

Directory of Open Access Journals (Sweden)

Justice E. Reilly

2014-09-01

Full Text Available Introduction: There is a need to more clearly understand the characteristics of breathing patterns in children with cleft palate inthe first year of life, as there is little data available to guide current practice. Pierre Robin patients are known to have a higher incidence, however we hypothesised sleep breathing disturbance is not confined to this sub-group of cleft patient. Methods: We conducted a prospective observational study of sleep disordered breathing patterns in a cohort of infants with oronasal clefts (cleft palate with or without cleft lip to describe the spectrum of sleep breathing patterns both pre and post palate repair. Sleep breathing studies were performed pre- and post-operatively in sequential infants referred to a regional cleft lip andpalate unit. Results of sleep breathing studies were analysed according to American Academy of Sleep Medicine scoring guidelines and correlated with clinical history and details of peri-operative respiratory compromise. The degree of sleep disordered breathingwas characterised using desaturation indices (number of desaturations from baseline SpO2 of >=4%, per hour. Results: Thirty-nine infants were included in this study, twenty-five female and fourteen male. Twelve had isolated Cleft Palate aspart of an associated syndrome. Patients were categorised into Isolated Cleft Palate, Isolated Cleft Palate in the context of Pierre Robin Sequence, and those with Cleft Lip and Palate. All groups demonstrated some degree of sleep breathing abnormality. Not unsurprisingly the eight infants with Pierre Robin Sequence had a significantly higher desaturation index before surgicalintervention (p=0.043, and were more likely to require a pre-operative airway intervention (p=0.009. Palate repair in this group did not alter the relative distribution of patients in each severity category of sleep disorder breathing. Surgical repair ofthe secondary palate in the remaining children was associated with some

Basics of SCI Rehabilitation

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CME 8857 (ONLINE).indd

African Journals Online (AJOL)

Educating patients with atopic dermatitis (AD) is an essential and unavoidable ... a discussion about the scientific basis of alternative therapies. (homoeopathy ... Corresponding author: R J Green (robin.green@up.ac.za). Educating patients ...

Helicobakteri seljatasid tavalised arstid / Heidi-Ingrid Maaroos

Index Scriptorium Estoniae

Maaroos, Heidi-Ingrid, 1942-

2005-01-01

2005. aasta füsioloogia ja meditsiini Nobeli preemia omistati Austraalia arstidele Barry J. Marshallile ja Robin Warrenile gastriidi, mao- ja kaksteistsõrmikuhaavandi ning maovähi tekitaja Helicobacter pylori avastamise eest 1982. aastal

77 FR 9627 - Marine Mammals

Science.gov (United States)

2012-02-17

... Robin Baird, Ph.D., Cascadia Research, 218\\1/2\\ W. 4th Avenue, Olympia, WA 98501, has applied in due...) social organization, (5) feeding ecology, and (6) disease monitoring of the targeted species. Harassment...

76 FR 10560 - Marine Mammals; File No. 15530

Science.gov (United States)

2011-02-25

... Robin Baird, PhD, Cascadia Research, 218 [frac12] W. 4th Avenue, Olympia, WA 98501, has applied in due...) social organization, (5) feeding ecology, and (6) disease monitoring. Harassment of all species of...

European Identity through Space Space Activities and Programmes as a Tool to Reinvigorate the European Identity

CERN Document Server

Baranes, Blandina

2013-01-01

Space activities are one particularly visible area, where Europe can shape its identity. This publication investigates the effect space activities have already had on building a European “spirit” (e.g. through European missions or European astronauts). It also looks into the effects that activities labelled “national” have on the emergence of a European identity. Based on this analysis, the book's intention is to identify creative ways and means for how to further use space for shaping the European identity. For this purpose the focus is not only on policy analysis but also on expertise from the fields of cultural science and the arts in order to tap their creative potential and also their theoretical approaches to the topic. Selecting this theme provides ESPI with another opportunity to develop its trans-disciplinary approach.

Structural nested mean models for assessing time-varying effect moderation.

Science.gov (United States)

Almirall, Daniel; Ten Have, Thomas; Murphy, Susan A

2010-03-01

This article considers the problem of assessing causal effect moderation in longitudinal settings in which treatment (or exposure) is time varying and so are the covariates said to moderate its effect. Intermediate causal effects that describe time-varying causal effects of treatment conditional on past covariate history are introduced and considered as part of Robins' structural nested mean model. Two estimators of the intermediate causal effects, and their standard errors, are presented and discussed: The first is a proposed two-stage regression estimator. The second is Robins' G-estimator. The results of a small simulation study that begins to shed light on the small versus large sample performance of the estimators, and on the bias-variance trade-off between the two estimators are presented. The methodology is illustrated using longitudinal data from a depression study.

Negentropy Generation and Fractality in the Dry Friction of Polished Surfaces

Directory of Open Access Journals (Sweden)

Mordecai Segall

2010-03-01

Full Text Available We consider the Robin Hood model of dry friction to study entropy transfer during sliding. For the polished surface (steady state we study the probability distribution of slips and find an exponential behavior for all the physically relevant asperity interaction-distance thresholds. In addition, we characterize the time evolution of the sample by its spatial fractal dimension and by its entropy content. Starting from an unpolished surface, the entropy decreases during the Robin Hood process, until it reaches a plateau; thereafter the system fluctuates above the critical height. This validates the notion that friction increases information in the neighborhood of the contacting surface at the expense of losing information in remote regions. We explain the practical relevance of these results for engineering surface processing such as honing.

Sex and Fertility After SCI

Science.gov (United States)

... Cord Injury Medical Expert Videos Topics menu Topics Sex and Fertility After Spinal Cord Injury Adult Injuries ... Coping with a New Injury Robin Dorman, PsyD Sex and Fertility After Spinal Cord Injury Diane M. ...

Spinal Cord Injury 101

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Preventing Pressure Sores

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Full Text Available ... About Media Donate Spinal Cord Injury Medical Expert Videos ... Home Kim Eberhardt Muir, MS Coping with a New Injury Robin Dorman, PsyD Sex and Fertility After Spinal Cord Injury Diane M. ...

Journal of Genetics | Indian Academy of Sciences

Indian Academy of Sciences (India)

1 R. USHAKUMARI3 S. ROBIN1. Department of Rice, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore 641 003, India; Vegetable Research Station, Palur, Cuddalore 607 102, India; Regional Research ...

A new 2D mesh routing approach for networks on chip Une nouvelle ...

African Journals Online (AJOL)

a modified XY routing and a communication load-based clustering technique. We show that our .... (TDMA), Round-Robin and fixed priority. B. routing. Figure.3: Router ..... Algorithms for Wireless Sensor Networks,” Computer. Communications ...

ORIGINAL ARTICLES

African Journals Online (AJOL)

Robin A Ernsley, MD. Do/artmmt ofOccupational Therapy, University ofStellenbosch, Tygerberg, ... cognitive impairment. Finally, 's' is for signs on physical ... in neurology and psychiatry, with research training in geriatric psychiatry. It is clear ...

Nesnesitelně otravná aktualita

Czech Academy of Sciences Publication Activity Database

Kořínek, Pavel

2014-01-01

Roč. 11, č. 2 (2014), s. 5 Institutional support: RVO:68378068 Keywords : American prose * Czech prose * Franzen, Jonathan * Sloan, Robin * Eggers, Dave * social netvworking websites * literature and society Subject RIV: AJ - Letters, Mass-media, Audiovision

Turbidity, SOLAR RADIATION - ATMOSPHERIC and other data from UNKNOWN PLATFORMS OF AUSTRALIA in the South Atlantic Ocean from 1972-02-01 to 1977-11-15 (NCEI Accession 9000036)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — This accession contains ocean station and current data collected by Water & Sewerage Board in South Atlantic Ocean and submitted by Mr.K.H.J. Robin. The physical...

Disease ecology: the silence of the robins

DEFF Research Database (Denmark)

Rahbek, Carsten

2007-01-01

A continent-wide analysis suggests that West Nile virus has severely affected bird populations associated with human habitats in North America. The declines parallel patterns of human disease caused by the virus.......A continent-wide analysis suggests that West Nile virus has severely affected bird populations associated with human habitats in North America. The declines parallel patterns of human disease caused by the virus....

Robin Hood tuleb / Taavi Veskimägi

Index Scriptorium Estoniae

Veskimägi, Taavi, 1974-

2002-01-01

Ilmunud ka: Põhjarannik, Severnoje Poberezhje 24. august lk. 2, Estonija 25. august lk. 2, Nädaline 24. august lk. 4, Valgamaalane 24. august lk. 2, Hiiumaa 24. august lk. 3, Lääne-Harju Ekspress 31. august lk. 4, Järva Teataja 3. september lk. 2, Vooremaa 3. september lk. 7, Virumaa Teataja 6. september lk. 7, Koit 5. september lk. 6. Autori arvates võiks üksikisiku tulumaksust 100% jääda kohalikele omavalitsustele. Autor: Res Publica

Round-robin testing of low-scatter optics

International Nuclear Information System (INIS)

Bennett, J.M.; Stowell, W.K.

1985-01-01

For high quality laser optics it is important to compare measurements of surface quality made in different laboratories, determine how scattering levels of silver coatings produced by different groups compare, and what effects, if any, are introduced by stripping the silver coatings and by handling and transporting samples between laboratories. Fourteen very low-scatter, optically polished synthetic fused silica (Suprasil) and natural fused quartz (Homosil) samples were purchased from Robert M. Silva of VTI, Dayton, Ohio. Angular scattering, i.e., bidirectional reflectance distribution function (BRDF), was measured on all the uncoated samples and three silver-coated samples at AFWAL using a variable angle scatterometer. Eleven additional samples were silver coated at NWC, and total integrated scattering (TIS) was measured on all silver-coated samples. Transmission electron micrographs were made of the surfaces (silvered and also stripped) of two samples, and selected coated and uncoated samples were profiled. TIS was then measured on the instrument at AFWL

Introduction Robin Melrose The French philosopher Jacques ...

African Journals Online (AJOL)

and presumably based on the present participle diff erant. (from differer), which in French means ... grammatical items that can fill the determiner slot). But ... or opposition which gives them form [ ... ] Here the ..... Here is a simple example from ...

„Robin Hood” Government: Some Sociological Considerations

Directory of Open Access Journals (Sweden)

Sabin Drăgulin

2011-11-01

Full Text Available After two decades after the collapse of the communist state, the „social state” enjoys great popularity in our country. This article aims to present some general undesirable consequences of redistributive social policy, less evident in the current public and political debate, which seems dominated by the idea that (increasing redistribution of revenues is always desirable.

South African Medical Journal - Vol 91, No 7 (2001)

African Journals Online (AJOL)

AIDS in Africa- survival according to AIDS-defining illness · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. Frank A. Post, Motasim Badri, Robin Wood, Gary Maartens, 583-586 ...

Chemical reaction in MHD flow past a vertical plate with mass ...

African Journals Online (AJOL)

flow in a vertical double passage channel using Robin boundary conditions. ... the diffusion of a chemically reactive species in a laminar boundary layer flow. ...... hydrodynamic flow past a flat plate will Hall effects, Journal of the Physical.

Seasonal blood-feeding behavior of Culex tarsalis (Diptera: Culicidae) in Weld County, Colorado, 2007.

Science.gov (United States)

Kent, Rebekah; Juliusson, Lara; Weissmann, Michael; Evans, Sara; Komar, Nicholas

2009-03-01

Studies on Culex tarsalis Coquillett in Colorado have shown marked seasonal variation in the proportion of blood meals from birds and mammals. However, limitations in the specificity of antibodies used in the precipitin test and lack of vertebrate host availability data warrant revisiting Cx. tarsalis blood feeding behavior in the context of West Nile virus (WNV) transmission. We characterized the host preference of Cx. tarsalis during peak WNV transmission season in eastern Colorado and estimated the relative contribution of different avian species to WNV transmission. Cx. tarsalis preferred birds to mammals each month, although the proportion of blood meals from mammals increased in July and August. The distribution of blood meals differed significantly across months, in part because of changes in the proportion of blood meals from American robins, a preferred host. The estimated proportion of WNV-infectious vectors derived from American robins declined from 60 to 1% between June and August. The majority of avian blood meals came from doves, preferred hosts that contributed 25-40% of the WNV-infectious mosquitoes each month. Active WNV transmission was observed in association with a large house sparrow communal roost. These data show how seasonal patterns in Cx. tarsalis blood feeding behavior relate to WNV transmission in eastern Colorado, with the American robin contributing greatly to early-season virus transmission and a communal roost of sparrows serving as a focus for late-season amplification.

Sex and Fertility After SCI

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Full Text Available ... Medical Expert Videos Topics menu Topics Sex and Fertility After Spinal Cord Injury Adult Injuries Spinal Cord ... a New Injury Robin Dorman, PsyD Sex and Fertility After Spinal Cord Injury Diane M. Rowles, MS, ...

Spinal Cord Injury 101

Medline Plus

Full Text Available ... Home Kim Eberhardt Muir, MS Coping with a New Injury Robin Dorman, PsyD Sex and Fertility After ... program? play_arrow What are the most promising new treatments for spinal cord injuries? play_arrow What ...

Sex and Fertility After SCI

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Full Text Available ... Cord Injury Medical Expert Videos Topics menu Topics Sex and Fertility After Spinal Cord Injury Adult Injuries ... Coping with a New Injury Robin Dorman, PsyD Sex and Fertility After Spinal Cord Injury Diane M. ...

SUFFERING FROM ‘POLITICAL EXHAUSTION’: The Dynamics of Nahdlatul Ulama (NU in Indonesia’s Political Arena

Directory of Open Access Journals (Sweden)

Ahmad Mansur

2009-06-01

Full Text Available Book Review:Book title:Nahdlatul Ulama and the Struggle for Power within Islam and Politics in IndonesiaAuthor:Robin BushNo. of Pages:xx + 236Year:2009Publisher:The Institute of Southeast Asian Studies, Singapore

Which solutions of the third problem for the Poisson equation are bounded?

Czech Academy of Sciences Publication Activity Database

Medková, Dagmar

-, č. 6 (2004), s. 501-510 ISSN 1085-3375 R&D Projects: GA ČR GA201/00/1515 Institutional research plan: CEZ:AV0Z1019905 Keywords : Poisson equation * Robin problem * boundedness Subject RIV: BA - General Mathematics

Integrated safety assessment of Indian nuclear power plants for ...

Indian Academy of Sciences (India)

to minimize release of radioactivity and avoid serious impact in public domain. A .... a large number of experimental programs, round robin exercises, benchmarks ...... numerical codes with BARCOM test data in terms of the loss of pre-stress in.

Gender Studies transdisziplinär gestalten Designing Trans-Disciplinary Gender Studies

Directory of Open Access Journals (Sweden)

Sigrid Schmitz

2007-07-01

Full Text Available Robin Bauer und Helene Götschel stellen am Beispiel des Curriculum-Projektes „Degendering Science“ Inhalte und Didaktiken für transdisziplinäre Lehrkonzepte vor, um Naturwissenschaften und Gender Studies in einen konstruktiven Dialog zu bringen. Dieses Buch ist mit seinen vielen Beispielen eine Hilfestellung für alle Lehrenden der Gender Studies und es liefert wichtige Anregungen zu aktuellen Herausforderungen und Strategien bei der Institutionalisierung der Gender Studies.On the basis of the curriculum project, “Degendering Science,” Robin Bauer and Helene Götschel propose didactics and contents for trans-disciplinary pedagogical concepts that bring the natural sciences and Gender Studies into a constructive dialogue. Because of its many examples, this book will be helpful for all instructors of Gender Studies and offers important strategies and stimulation for approaching current challenges in the institutionalization of Gender Studies.

NORDTEST Project on Moisture Buffer Value of Materials

DEFF Research Database (Denmark)

Rode, Carsten; Peuhkuri, Ruut Hannele; Hansen, Kurt Kielsgaard

2005-01-01

Building materials and furnishing used in contact with indoor air have some effect to moderate the variations of indoor humidity in occupied buildings. Very low humidity can be alleviated in winter, as well as can high indoor humidity in summer and during high occupancy loads. Thus, materials can...... have been carried out on various typical building materials. The paper gives an account on the definition of the Moisture Buffer Value, it outlines the content of the test protocol, and it gives some examples of results from the Round Robin Tests....... being completed, to develop a definition, and to declare it in the form of a NORDTEST method. Apart from the definition of the term Moisture Buffer Value, the project also declares a test protocol which expresses how materials should be tested. Finally as a part of the project, some Round Robin Tests...

Basics of SCI Rehabilitation

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Full Text Available ... Coping with a New Injury Robin Dorman, PsyD Sex and Fertility After Spinal Cord Injury Diane M. ... injury? play_arrow What’s important to know about sex and intimacy after a spinal cord injury? play_ ...

A double-blind placebo controlled trial of paroxetine in the ...

African Journals Online (AJOL)

A double-blind placebo controlled trial of paroxetine in the management of social phobia (social anxiety disorder) in South Africa. Dan J. Stein, Michael Berk, Charl Els, Robin A. Emsley, Leon Gittelson, Don Wilson, Rosemary Oakes, Brian Hunter ...

Oscillation of certain higher-order neutral partial functional differential equations.

Science.gov (United States)

Li, Wei Nian; Sheng, Weihong

2016-01-01

In this paper, we study the oscillation of certain higher-order neutral partial functional differential equations with the Robin boundary conditions. Some oscillation criteria are established. Two examples are given to illustrate the main results in the end of this paper.

Cerebro-costo-mandibular syndrome

NARCIS (Netherlands)

Plotz, FB; vanEssen, AJ; Bosschaart, AN; Bos, AP

1996-01-01

We describe two boys with the cerebro-costomandibular syndrome (CCMS). Both patients presented with Pierre Robin anomaly and respiratory insufficiency and died 12 hours and 10 months after birth. The first boy had muscular hypotonia, severe micrognathia, glossoptosis, short; palate, preauricular

Nobeli meditsiinipreemia teema puudutab Eestit / Aleksei Günter

Index Scriptorium Estoniae

Günter, Aleksei, 1979-

2005-01-01

Tänavuse Nobeli meditsiinipreemia laureaatideks osutusid Austraalia teadlased Barry J. Marshall ja J. Robin Warren, kelle avastus ja uurimistöö tõi murrangu maohaiguste ravipõhimõtetesse, mis on ka Eesti jaoks suure tähtsusega. Lisa: Helicobacter pylori

African Journal of Biotechnology - Vol 2, No 11 (2003)

African Journals Online (AJOL)

Segenet Kelemu, George Mahuku, Martin Fregene, Douglas Pachino, Nancy Johnson, Lee Calvert, Idupulapati Rao, Robin Buruchara, Tilahun Amede, Paul Kimani, ... Festus Doyin Adu, Jane Iber, Tekena Harry, Cara Burns, Oluseyi Oyedele, Johnson Adekunle Adeniji, Mubarak Ossei-Kwasi, David Kilpatrick, Oyewale ...

Guide to APA-Based Models

Science.gov (United States)

Robins, Robert E.; Delisi, Donald P.

2008-01-01

In Robins and Delisi (2008), a linear decay model, a new IGE model by Sarpkaya (2006), and a series of APA-Based models were scored using data from three airports. This report is a guide to the APA-based models.

Multi-Laboratory Validation of Estrone (E1) ELISA Methods

Science.gov (United States)

This project is a round-robin evaluation of commercially available Enzyme-Linked Immunosorbent Assay (ELISA) technology to quantitatively or qualitatively measure the hormone estrone (E1) in combined animal feeding operation (CAFO) receiving streams. ELISA is meant to be a simpl...

South African Medical Journal - Vol 92, No 10 (2002)

African Journals Online (AJOL)

Exploring the costs of a limited public sector antiretroviral treatment programme in South Africa · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. Andrew Boulle, Christopher Kenyon, Jolene Skordis, Robin Wood, 811-817 ...

Recent developments in exponential random graph (p*) models for social networks

NARCIS (Netherlands)

Robins, Garry; Snijders, Tom; Wang, Peng; Handcock, Mark; Pattison, Philippa

This article reviews new specifications for exponential random graph models proposed by Snijders et al. [Snijders, T.A.B., Pattison, P., Robins, G.L., Handcock, M., 2006. New specifications for exponential random graph models. Sociological Methodology] and demonstrates their improvement over

Advanced image based methods for structural integrity monitoring: Review and prospects

Science.gov (United States)

Farahani, Behzad V.; Sousa, Pedro José; Barros, Francisco; Tavares, Paulo J.; Moreira, Pedro M. G. P.

2018-02-01

There is a growing trend in engineering to develop methods for structural integrity monitoring and characterization of in-service mechanical behaviour of components. The fast growth in recent years of image processing techniques and image-based sensing for experimental mechanics, brought about a paradigm change in phenomena sensing. Hence, several widely applicable optical approaches are playing a significant role in support of experiment. The current review manuscript describes advanced image based methods for structural integrity monitoring, and focuses on methods such as Digital Image Correlation (DIC), Thermoelastic Stress Analysis (TSA), Electronic Speckle Pattern Interferometry (ESPI) and Speckle Pattern Shearing Interferometry (Shearography). These non-contact full-field techniques rely on intensive image processing methods to measure mechanical behaviour, and evolve even as reviews such as this are being written, which justifies a special effort to keep abreast of this progress.

Experimental study on nonlinear vibrating of aluminum foam using electronic speckle pattern interferometry

Science.gov (United States)

Yang, Fujun; Ma, Yinhang; Tao, Nan; He, Xiaoyuan

2017-06-01

Due to its multi properties, including excellent stiffness-to-weight and strength-to-weight ratios, closed-cell aluminum and its alloy foams become candidate materials for use in many high-technology industries, such as the automotive and aerospace industries. For the efficient use of closed-cell foams in structural applications, it is necessary and important to detailly understand their mechanical characteristics. In this paper, the nonlinear vibration responses of the cantilever beams of closed-cell aluminum foams were investigated by use of electronic speckle pattern interferometry (ESPI). The nonlinear resonant mode shapes of testing specimens under harmonic excitation were measured. It is first time to obtain from the experimental results that there exist super-harmonic responses when the cantilever beams of closed-cell aluminum foam were forced to vibrate, which was caused by its specific cellular structures.

Idiosyncratic versus social consensus approaches to personality : Self-view, perceived, and peer-view similarity

NARCIS (Netherlands)

van Zalk, M.H.W.; Denissen, J.J.A.

2015-01-01

In the current studies, the authors examined how peers influence friendship choices through individuals' perceptions of similarity between their own and others' Big Five traits. Self-reported and peer-reported data were gathered from 3 independent samples using longitudinal round-robin designs.

76 FR 21384 - Office of the Director, National Institutes of Health; Notice of Meeting

Science.gov (United States)

2011-04-15

.... The meeting will be open to the public as indicated below, with attendance limited to space available... confidential trade secrets or commercial property such as patentable material, and personal information..., MD 20892. Contact Person: Robin Kawazoe, Executive Secretary, Division Of Program Coordination...

Preventing Out-of-Sequence for Multicast Input-Queued Space-Memory-Memory Clos-Network

DEFF Research Database (Denmark)

Yu, Hao; Ruepp, Sarah Renée; Berger, Michael Stübert

2011-01-01

This paper proposes an out-of-sequence (OOS) preventative cell dispatching algorithm, the multicast flow-based round robin (MFRR), for multicast input-queued space-memory-memory (IQ-SMM) Clos-network architecture. Independently treating each incoming cell, such as the desynchronized static round...

75 FR 13575 - Privacy Act of 1974; System of Records

Science.gov (United States)

2010-03-22

..., proposes to modify the Accounting Systems for the Department of Justice, Justice/DOJ-001, to update the... the system description is set forth below. FOR FURTHER INFORMATION CONTACT: Robin Moss, Privacy... NAME: Accounting Systems for the Department of Justice (DOJ). * * * * * RECORD SOURCE CATEGORIES...

Nicolas Cage otsib kadunud tütart naistesaarelt / Triin Tael

Index Scriptorium Estoniae

Tael, Triin

2006-01-01

Õudusfilm "Ohvripidu" : režissöör Neil LaBute : peaosas Nicholas Cage : Ameerika Ühendriigid - Saksamaa 2006. Film on uusversioon briti 1973.a. filmist, mille režissöör oli Robin Hardy ja ühes peaosadest Christopher Lee

Evaluation of Failure Probability of BWR Vessel Under Cool-down and LTOP Transient Conditions Using PROFAS-RV PFM Code

Energy Technology Data Exchange (ETDEWEB)

Kim, Jong-Min; Lee, Bong-Sang [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

2016-10-15

The round robin project was proposed by the PFM Research Subcommittee of the Japan Welding Engineering Society to Asian Society for Integrity of Nuclear Components (ASINCO) members, which is designated in Korea as Phase 2 of A-Pro2. The objective of this phase 2 of RR analysis is to compare the scheme and results related to the assessment of structural integrity of RPV for the events important to safety in the design consideration but relatively low fracture probability. In this study, probabilistic fracture mechanics analysis was performed for the round robin cases using PROFAS-RV code. The effects of key parameters such as different transient, fluence level, Cu and Ni content, initial RT{sub NDT} and RT{sub NDT} shift model on the failure probability were systematically compared and reviewed. These efforts can minimize the uncertainty of the integrity evaluation for the reactor pressure vessel.

New developments in NDT through electronic speckle pattern interferometry

International Nuclear Information System (INIS)

Mohan, S.; Murugesan, P; Mas, R.H.

2007-01-01

Full text: Optical holography and speckle interferometry are the emerging optical techniques that can be used for the measurements of microscopic parameters such as displacement, strain, stress and slope. These techniques are applied in various fields such as surface studies, non destructive testing, speckle metrology and steller interferometry. Even though many new NDT methods are available, the suitability for a specific application is based on the material property, nature of defects and sensitivity of detection. Difficulty in radiographic technique is that it fails in detecting tight cracks, planar defects and debonds. Microwave techniques has limited sensitivity for the defect detection and it is not suitable for the objects with metallic cases since the metals are perfect reflectors for the microwaves. Low modulus material attenuates the acoustic energy completely, making ultrasonic testing techniques not feasible. The recently evolved optoelectronic technique namely Electronic Speckle Pattern interferometry (ESPI) is a fast developing optical technique widely used for measuring displacement components, their derivatives, surface roughness, surface contours, shape and others. Due to non contact nature and high sensitivity, this technique has been used as a powerful on line inspection tool for non destructive pattern of materials in industrial environment. The salient feature of ESPI is its capability to display the correlation fringes in a real time on a monitor without the need of photographic processing or optical filtering. ESPI is an alternate non destructive technique suitable for propellant grains and other low modulus materials used in space vehicle systems. The optoelectronic technique can be used to detect cracks, voids and residual stresses etc.., in the components in the industrial environment. In the present investigation, speckle non destructive testing has been carried out on some selected low modulus materials used in space vehicles. The

Fransman versus de Fransman

NARCIS (Netherlands)

Drs. Ewoud Jansen

2014-01-01

De Franse econoom Thomas Piketty stelt dat het rendement op kapitaal (R) normaal structureel hoger is dan de groei van de economie (G). De inmiddels bekende ongelijkheid R>G die de basis vormt voor Piketty’s wereldbeeld van toenemende vermogensongelijkheid. Financieel commentator Robin Fransman

76 FR 52735 - Members of Senior Executive Service Performance Review Boards

Science.gov (United States)

2011-08-23

..., Specialty Programs (SB/SE); Robin DelRey Jenkins, Director, Office of Business Modernization (SB/ SE... (CI); David W. Stender, Associate CIO, Cybersecurity (MITS); Peter J. Stipek, Director, Customer Accounts Services (W&I); Keith V. Taylor, Director, Human Resources (SB/SE); Peter C. Wade, Business...

Blair üritab muuta USA Euroopa-meelsemaks / Neeme Raud

Index Scriptorium Estoniae

Raud, Neeme, 1969-

2004-01-01

USA presidendi George W. Bushi ja Suurbritannia peaministri Tony Blairi kohtumine Valges Majas. Blairi parteikaaslase Helen Jacksoni kriitika Blairi USA-poliitika kohta. Suurbritannia endise välisministri Robin Cooki sõnul on USA ja Euroopa poliitilised väärtushinnangud pigem lahknemas kui ühtimas

Zimbabwe's Exodus: Crisis, Migration, Survival | CRDI - Centre de ...

International Development Research Centre (IDRC) Digital Library (Canada)

1 juil. 2010 ... Un tableau complet et convaincant du grand exode. Par-delà le désarroi de l'exil et du retour, nous pouvons entrevoir des personnes extraordinaires derrière les statistiques. Robin Cohen, International Migration Institute, Université d'Oxford.

78 FR 65843 - General Provisions; Revised List of Migratory Birds

Science.gov (United States)

2013-11-01

... Rock Thrush, Monticola solitarius, becomes Blue Rock-Thrush (Clements 2007); Clay-colored Robin, Turdus... (1). Blue Rock Thrush, Monticola solitarius Blue Rock-Thrush, Monticola (8). solitarius (8). Rufous... cycle to coincide with updates to the Birds of Conservation Concern, thus balancing the frequency of...

Journal of East African Natural History - Vol 106, No 2 (2017)

African Journals Online (AJOL)

Two red-capped robin-chats Cossypha natalensis imitate antiphonal duet of black-faced rufous warblers Bathmocercus rufus · EMAIL FULL TEXT EMAIL FULL TEXT DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. Thomas T. Struhsaker, 53-56. http://dx.doi.org/10.2982/028.106.0201 ...

Introducing a short measure of shared servant leadership impacting team performance through team behavioral integration

NARCIS (Netherlands)

M. Sousa (Milton); D. van Dierendonck (Dirk)

2016-01-01

textabstractThe research reported in this paper was designed to study the influence of shared servant leadership on team performance through the mediating effect of team behavioral integration, while validating a new short measure of shared servant leadership. A round-robin approach was used to

Clinical Features and the Factors Associated with Poor Outcome of ...

African Journals Online (AJOL)

Clinical Features and the Factors Associated with Poor Outcome of. Measles Patients at Queen Elizabeth Central Hospital. Robin L Broadhead. Paul Courtright. Lincy Misoya. Affiliation: 1. Department of Paediatrics College of. Medicine University of Malawi. 2. International Eye FoundatiQn. 3. Department of Paediatrics ...

77 FR 70182 - Reopening of Nomination Period for Members of the Advisory Committee on Climate Change and...

Science.gov (United States)

2012-11-23

... Nomination Period for Members of the Advisory Committee on Climate Change and Natural Resource Science AGENCY... published a notice announcing the establishment of the Advisory Committee on Climate Change and Natural.... ADDRESSES: Send nominations to: Robin O'Malley, Policy and Partnership Coordinator, National Climate Change...

Electronic speckle-pattern interferometry (ESPI) applied to the study of mechanical behavior of human jaws

Science.gov (United States)

Roman, Juan F.; Moreno de las Cuevas, Vincente; Salgueiro, Jose R.; Suarez, David; Fernandez, Paula; Gallas, Mercedes; Blanchard, Alain

1996-01-01

The study of the mechanical behavior of the human jaw during chewing is helpful in several specific medical fields that cover the maxillo-facial area. In this work, electronic speckle pattern interferometry has been applied to study dead jaw bones under external stress which simulates the deformations induced during chewing. Fringes obtained after subtraction of two images of the jaw, the image of the relaxed jaw and that of the jaw under stress, give us information about the most stressed zones. The interferometric analysis proposed here is attractive as it can be done in real time with the jaw under progressive stress. Image processing can be applied for improving the quality of fringes. This research can be of help in orthognathic surgery, for example in diagnosis and treatment of fractured jaws, in oral surgery, and in orthodontics because it would help us to know the stress dispersion when we insert an osseointegrated implant or place an orthodontic appliance, respectively. Studying fragments of human jaw some results about its elasticity and flexibility were obtained.

ESPI correlogram analysis by two stage application of wavelet transform with use of intensity thresholding

Czech Academy of Sciences Publication Activity Database

Stanke, L.; Šmíd, Petr; Horváth, P.

2015-01-01

Roč. 126, 7-8 (2015), s. 865-870 ISSN 0030-4026 R&D Projects: GA MŠk(CZ) LG13007; GA ČR GA13-12301S Institutional support: RVO:68378271 Keywords : phase retrieval * wavelets * speckle interferometry * speckle imaging * metrology Subject RIV: BH - Optics , Masers, Lasers Impact factor: 0.742, year: 2015

Development and implementation of a fast neutron monitoring system based on plastic track detectors

International Nuclear Information System (INIS)

Bradley, R.P.; Ryan, R.N.

1988-01-01

The Bureau of Radiation and Medical devices has provided neutron dosimetry services for Canadian industrial and research applications since the late 1960's. The program used a nuclear emulsion film, Kodak NTA, as the personal dosimeter. Despite its two principle shortcomings, that of a relatively high energy threshold, approximately 700 keV, and highly labor intensive analysis technique, there was little else conveniently available for use. For quite a number of years we pursued, as did many laboratories, the possibilities of developing an albedo dosimeter based on paired thermoluminescent elements in some form of cadmium and plastic encapsulation. Some promise has been shown by this method and several major laboratories have designed and are currently using albedo dosimeters. At the first symposium on Personnel Radiation Dosimetry held in Knoxville in 1984, Dale Hankins of the Lawrence Livermore Laboratories, in his paper entitled, Improvements in the Etching of CR-39 for Large Scale Neutron Dosimetry, reported on his laboratories work with the polycarbonate, CR-39. Using this paper as a start and following up on similar work by W. G. Cross at the Chalk River Nuclear Laboratories, we have developed a replacement dosimeter. This paper will describe the principle features of the system introduced into routine use in Canada in October 1987

PT-Symmetric Waveguides and the Lack of Variational Techniques

Czech Academy of Sciences Publication Activity Database

Krejčiřík, David

2012-01-01

Roč. 73, č. 1 (2012), s. 1-2 ISSN 0378-620X Institutional support: RVO:61389005 Keywords : Robin Laplacian * non-self-adjoint boundary conditions * complex symmetric operator * PT-symmetry * waveguides * discrete and essential spectra Subject RIV: BA - General Mathematics Impact factor: 0.713, year: 2012

Correction to: The hidden therapist: evidence for a central role of music in psychedelic therapy.

Science.gov (United States)

Kaelen, Mendel; Giribaldi, Bruna; Raine, Jordan; Evans, Lisa; Timmermann, Christopher; Rodriguez, Natalie; Roseman, Leor; Feilding, Amanda; Nutt, David; Carhart-Harris, Robin

2018-05-01

The article The hidden therapist: evidence for a central role of music in psychedelic therapy, written by Mendel Kaelen, Bruna Giribaldi, Jordan Raine, Lisa Evans, Christopher Timmerman, Natalie Rodriguez, Leor Roseman, Amanda Feilding, David Nutt, Robin Carhart-Harris, was originally published electronically on the publisher's internet portal.

Southern African Journal of HIV Medicine - Vol 17, No 1 (2016)

African Journals Online (AJOL)

Andrew Revell, Paul Khabo, Lotty Ledwaba, Sean Emery, Dechao Wang, Robin Wood, Carl Morrow, Hugo Tempelman, Raph L Hamers, Peter Reiss, Ard van Sighem, Anton Pozniak, Julio Montaner, H Clifford Lane, Brendan Larder ... Nnamdi O. Ndubuka, Hyun J. Lim, Dirk M. van der Wal, Valerie J. Ehlers.

RAS Corner at the ATRF Library Keeps You Up-to-Date on the Research | Poster

Science.gov (United States)

By Robin Meckley, Contributing Writer The new RAS initiative recently undertaken at the Frederick National Laboratory for Cancer Research has prompted the Scientific Library to provide support in a creative way to the laboratories at the Advanced Technology Research Facility (ATRF), where the research is centered.

Anxiety Sensitivity and Psychological Vulnerability

Science.gov (United States)

1999-01-01

disorder insist that some attacks occur without catastrophic thoughts (Rachman, Lopatka, & Levitt, 1988). 19 Many argue that this aspect renders Clark s...research and theory. (pp. 64-99). New York: Appleton-Century-Crofts. Robins, L. N., Heizer , J. E., Weissman, M. M., Orvaschel, H., Gruenberg, E

Horton Revisited: African Traditional Thought and Western Science ...

African Journals Online (AJOL)

Over the years Robin Horton has argued for what he refers to as the 'continuity thesis' according to which there are theoretical similarities between African traditional thought and modern Western science. Horton's thesis stands in contrast to the standard Western anthropological appraisal of traditional African thought.

Diagnosis, Dogmatism, and Rationality.

Science.gov (United States)

Rabinowitz, Jonathan; Efron, Noah J.

1997-01-01

Presents findings suggesting that misdiagnoses frequently stem from flaws in human information processing, particularly in collecting and using information. Claims that improved diagnostic tools will not remedy the problem. Drawing on the work of Karl Popper and Robin Collingwood, proposes operational principles to ensure a rational diagnostic…

The Kavirondo Escarpment: a previously unrecognized site of high ...

African Journals Online (AJOL)

west, and comprises the northern fault line escarpment of the Kavirondo Rift Valley. (Baker et al. 1972). ... Darker shading represents higher elevations and contours shown are for 1400 m .... Kavirondo Escarpment represents a 50 km north-easterly extension of range and only ... Grey-winged Robin Sheppardia polioptera.

Finding of No Significant Impact: Environmental Assessment for Military Family Housing Privatization Initiative, Vandenberg Air Force Base, California

Science.gov (United States)

2007-08-01

Turdus migratorius American robin Selasphorus sasin Allen’s hummingbird Mimus polyglottos Northern mockingbird Columba livia Rock pigeon Toxostoma...when the soil is wet is likely to kill tarplant seeds as weU as young seedlings. Overall, the Air Force has adversely affected approximately 0.50

Inter-laboratory comparison of medical computed tomography (CT) scanners for industrial applications in the slaughterhouses

DEFF Research Database (Denmark)

Christensen, Lars Bager; Angel, Jais Andreas Breusch

2013-01-01

differences in CT performance. The presented Round Robin scheme has demonstrated its potential as such a method. The benefit of the phantom set is that it provides a convenient way of comparing volume determination between different CT scanners. The suggested phantoms are mimicking important carcass features...

Clinicopathological Analysis of a Primary and Solitary Brain Plasmacytoma: Case Report with an Encephalocoele

Institute of Scientific and Technical Information of China (English)

2007-01-01

@@ A primary and solitary plasmacytoma with an encephalocoele is an extremely rare tumor[1]. The origin of plasmacytoma cells has not been clarified, but a number of studies have suggested the possibility that it originates from the meninges and reticular cells of the Virchow-Robin space.

Assessing Tuition and Student Aid Strategies: Using Price-Response Measures to Simulate Pricing Alternatives.

Science.gov (United States)

St. John, Edward P.

1994-01-01

A study used price-response measures from recent national studies to assess college and university pricing (tuition and student aid) alternatives in diverse institutional settings. It is concluded that such analyses are feasible. Analysis indicated limits to "Robin Hood" pricing patterns are predominant in private colleges. Consideration…

Analytical methods for lignin characterization - Differential scanning calorimetry

NARCIS (Netherlands)

Koullas, D.P.; Koukios, E.G.; Avgerinos, E.; Abaecherli, A.; Gosselink, R.; Vasile, C.; Lehnen, R.; Saake, B.; Suren, J.

2006-01-01

Results of a round robin on lignin thermal analyses are reported. Six laboratories have conducted thermal analyses of four lignin types to determine their cp values and softening points, and to study the thermal behaviour, materials endo- and exotherms included. The lignin types examined were wood

Teamharmony: Employing Matchmaking Algorithms to Team-Building

Science.gov (United States)

2017-12-01

are not a priority; 2) have no real consequence for delinquency ; and/or 3) compete for time with arguably more important items on the training...include about class sizes, pass/graduation rates statistics , team performance, and peer evaluations from previous Robin Sage classes). This data would

Helicobacer pylori detection using local (in-house) rapid Urease ...

African Journals Online (AJOL)

Background: Since the discovery of Helicobacter pylori (H. pylori) by Robin Warren and Barry Marshall in 1982 and its subsequent association with diseases like antral (type B) gastritis, peptic ulcer disease (PUD), gastric cancer and gastric Mucosal Associated Lymphoid Tissue (MALT) lymphoma, various invasive as well ...

Out-of-Sequence Preventative Cell Dispatching for Multicast Input-Queued Space-Memory-Memory Clos-Network

DEFF Research Database (Denmark)

Yu, Hao; Ruepp, Sarah Renée; Berger, Michael Stübert

2011-01-01

This paper proposes two out-of-sequence (OOS) preventative cell dispatching algorithms for the multicast input-queued space-memory-memory (IQ-SMM) Clos-network switch architecture, i.e. the multicast flow-based DSRR (MF-DSRR) and the multicast flow-based round-robin (MFRR). Treating each cell...

75 FR 3904 - Appointments to the Medicaid and CHIP Payment and Access Commission (MACPAC)

Science.gov (United States)

2010-01-25

... 2012 are Diane Rowland, ScD, (chair) Executive Vice President, Henry J. Kaiser Family Foundation and..., American Academy of Family Physicians. Commissioners whose first term will expire in December 2011 are... Washington University; and Robin Smith, foster and adoptive parent of special needs children covered by...

The Mary Ingraham Bunting Institute of Radcliffe College Technical Report. Science Scholars Program

Science.gov (United States)

1993-08-31

C. SHAW STELLA M. NKOMO The New Politics ofinclusion: Transformini Fellow (Anthropology and Archaeology ) University of North Carolina at Charloue...Behavior) ROBIN KILSON the Maya L4wia’dt LiWe Joneyr of Women in Corporations Bunting Fellow (Black Women’s Studies) Massachusett Institute of

Strategic Improvements to TSA Spot Program

Science.gov (United States)

2015-03-01

supporting me in this program, and specifically, Assistant Administrators Robin Kane, John Sanders, and Chris McLaughlin for their sponsorship. I hope...analysis. Edited by Michael Borenstein, Larry V. Hedges, Julian P. T. Higgins , and Hannah R. Rothstein, 377–387. Chichester, UK: John Wiley & Sons, 2009

Characterization of damaged composite laminates by an optical measurement of the displacement field

International Nuclear Information System (INIS)

Loukil, M S; Ayadi, Z; Varna, J

2012-01-01

The degradation of the elastic properties of composite laminates with intralaminar cracks is caused by reduced stress in the damaged layer which is mainly due to two parameters: the crack opening displacement (COD) and the crack sliding displacement (CSD). In this paper these parameters are measured experimentally providing laminate stiffness reduction models with valuable information for validation of used assumptions and for defining limits of their application. In particular, the displacement field on the edges of a [0/ +70 4 / −70 4 ] s glass fiber/epoxy laminate specimens with multiple intralaminar cracks is studied and the COD and CSD dependence on the applied mechanical load is measured. The specimen full-field displacement measurement is carried out using ESPI (Electronic Speckle Pattern Interferometry). By studying the displacement discontinuities, the crack face displacements were measured. A comparison between the COD and the CSD (for the same crack) is performed.

Metal accumulation and performance of nestlings of passerine bird species at an urban brownfield site

Energy Technology Data Exchange (ETDEWEB)

Hofer, Charles; Gallagher, Frank J. [Department of Ecology, Evolution and Natural Resources, Rutgers, the State University of New Jersey, 14 College Farm Rd., New Brunswick, NJ 08901-8551 (United States); Holzapfel, Claus, E-mail: holzapfe@andromeda.rutgers.ed [Department of Biological Sciences, Rutgers, the State University of New Jersey, Newark, 195 University Ave., Newark, NJ 07102-1811 (United States)

2010-05-15

The use of passerine species as bioindicators of metal bioaccumulation is often underutilized when examining the wildlife habitat value of polluted sites. In this study we tested feathers of nestlings of two common bird species (house wren and American robin) for accumulation of Pb, Zn, As, Cr, Cu, Fe in comparison of a polluted, urban brownfield with a rural, unpolluted site. House wren nestlings at the study site accumulated significantly greater concentrations of all target metals except Zn. At the polluted site we found significant species differences of metal concentrations in feathers, with house wrens accumulating greater concentrations of Pb, Fe, and Zn but slightly lesser accumulations of Cr and Cu than American robins. Although house wren nestlings demonstrated significant accumulation of metals, these concentrations showed little effect on size metrics or fledge rates during the breeding season compared to nestlings from the control site. - Nestlings of birds in an urban brownfield accumulated soil contaminants but did not show signs of reduced breeding success or growth.

The state of nuclear forensics

International Nuclear Information System (INIS)

Kristo, Michael J.; Tumey, Scott J.

2013-01-01

Nuclear terrorism has been identified as one of the most serious security threats facing the world today. Many countries, including the United States, have incorporated nuclear forensic analysis as a component of their strategy to prevent nuclear terrorism. Nuclear forensics involves the laboratory analysis of seized illicit nuclear materials or debris from a nuclear detonation to identify the origins of the material or weapon. Over the years, a number of forensic signatures have been developed to improve the confidence with which forensic analysts can draw conclusions. These signatures are validated and new signatures are discovered through research and development programs and in round-robin exercises among nuclear forensic laboratories. The recent Nuclear Smuggling International Technical Working Group Third Round Robin Exercise and an on-going program focused on attribution of uranium ore concentrate provide prime examples of the current state of nuclear forensics. These case studies will be examined and the opportunities for accelerator mass spectrometry to play a role in nuclear forensics will be discussed.

Metal accumulation and performance of nestlings of passerine bird species at an urban brownfield site

International Nuclear Information System (INIS)

Hofer, Charles; Gallagher, Frank J.; Holzapfel, Claus

2010-01-01

The use of passerine species as bioindicators of metal bioaccumulation is often underutilized when examining the wildlife habitat value of polluted sites. In this study we tested feathers of nestlings of two common bird species (house wren and American robin) for accumulation of Pb, Zn, As, Cr, Cu, Fe in comparison of a polluted, urban brownfield with a rural, unpolluted site. House wren nestlings at the study site accumulated significantly greater concentrations of all target metals except Zn. At the polluted site we found significant species differences of metal concentrations in feathers, with house wrens accumulating greater concentrations of Pb, Fe, and Zn but slightly lesser accumulations of Cr and Cu than American robins. Although house wren nestlings demonstrated significant accumulation of metals, these concentrations showed little effect on size metrics or fledge rates during the breeding season compared to nestlings from the control site. - Nestlings of birds in an urban brownfield accumulated soil contaminants but did not show signs of reduced breeding success or growth.

Mode solutions for a Klein-Gordon field in anti-de Sitter spacetime with dynamical boundary conditions of Wentzell type

Science.gov (United States)

Dappiaggi, Claudio; Ferreira, Hugo R. C.; Juárez-Aubry, Benito A.

2018-04-01

We study a real, massive Klein-Gordon field in the Poincaré fundamental domain of the (d +1 )-dimensional anti-de Sitter (AdS) spacetime, subject to a particular choice of dynamical boundary conditions of generalized Wentzell type, whereby the boundary data solves a nonhomogeneous, boundary Klein-Gordon equation, with the source term fixed by the normal derivative of the scalar field at the boundary. This naturally defines a field in the conformal boundary of the Poincaré fundamental domain of AdS. We completely solve the equations for the bulk and boundary fields and investigate the existence of bound state solutions, motivated by the analogous problem with Robin boundary conditions, which are recovered as a limiting case. Finally, we argue that both Robin and generalized Wentzell boundary conditions are distinguished in the sense that they are invariant under the action of the isometry group of the AdS conformal boundary, a condition which ensures in addition that the total flux of energy across the boundary vanishes.

Load balancing prediction method of cloud storage based on analytic hierarchy process and hybrid hierarchical genetic algorithm.

Science.gov (United States)

Zhou, Xiuze; Lin, Fan; Yang, Lvqing; Nie, Jing; Tan, Qian; Zeng, Wenhua; Zhang, Nian

2016-01-01

With the continuous expansion of the cloud computing platform scale and rapid growth of users and applications, how to efficiently use system resources to improve the overall performance of cloud computing has become a crucial issue. To address this issue, this paper proposes a method that uses an analytic hierarchy process group decision (AHPGD) to evaluate the load state of server nodes. Training was carried out by using a hybrid hierarchical genetic algorithm (HHGA) for optimizing a radial basis function neural network (RBFNN). The AHPGD makes the aggregative indicator of virtual machines in cloud, and become input parameters of predicted RBFNN. Also, this paper proposes a new dynamic load balancing scheduling algorithm combined with a weighted round-robin algorithm, which uses the predictive periodical load value of nodes based on AHPPGD and RBFNN optimized by HHGA, then calculates the corresponding weight values of nodes and makes constant updates. Meanwhile, it keeps the advantages and avoids the shortcomings of static weighted round-robin algorithm.

The state of nuclear forensics

Energy Technology Data Exchange (ETDEWEB)

Kristo, Michael J. [Chemical Sciences Division, Lawrence Livermore National Laboratory, P.O. Box 808, L-186, Livermore, CA 94551 (United States); Tumey, Scott J., E-mail: tumey2@llnl.gov [Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, P.O. Box 808, L-397, Livermore, CA 94551 (United States)

2013-01-15

Nuclear terrorism has been identified as one of the most serious security threats facing the world today. Many countries, including the United States, have incorporated nuclear forensic analysis as a component of their strategy to prevent nuclear terrorism. Nuclear forensics involves the laboratory analysis of seized illicit nuclear materials or debris from a nuclear detonation to identify the origins of the material or weapon. Over the years, a number of forensic signatures have been developed to improve the confidence with which forensic analysts can draw conclusions. These signatures are validated and new signatures are discovered through research and development programs and in round-robin exercises among nuclear forensic laboratories. The recent Nuclear Smuggling International Technical Working Group Third Round Robin Exercise and an on-going program focused on attribution of uranium ore concentrate provide prime examples of the current state of nuclear forensics. These case studies will be examined and the opportunities for accelerator mass spectrometry to play a role in nuclear forensics will be discussed.

Topology-based hierarchical scheduling using deficit round robin

DEFF Research Database (Denmark)

Yu, Hao; Yan, Ying; Berger, Michael Stubert

2009-01-01

according to the topology. The mapping process could be completed through the network management plane or by manual configuration. Based on the knowledge of the network, the scheduler can manage the traffic on behalf of other less advanced nodes, avoid potential traffic congestion, and provide flow...... protection and isolation. Comparisons between hierarchical scheduling, flow-based scheduling, and class-based scheduling schemes have been carried out under a symmetric tree topology. Results have shown that the hierarchical scheduling scheme provides better flow protection and isolation from attack...

Round robin testing of thermal conductivity reference materials

International Nuclear Information System (INIS)

Hulstrom, L.C.; Tye, R.P.; Smith, S.E.

1985-07-01

The Basalt Waste Isolation Project (BWIP), operated by Rockwell Hanford Operations, has a need to determine the thermal properties of basalt in the region being considered for a nuclear waste repository in basalt. Experimental data on thermal conductivity and its variation with temperature are information required for the characterization of basalt. To establish thermal conductivity values for the reference materials, an interlaboratory measurements program was undertaken. The program was planned to meet the objectives of performing an experimental characterization of the new stock and providing a detailed analysis of the results such that reference values of thermal conductivity could be determined. This program of measurements of the thermal conductivity of Pyrex 7740 and Pyroceram 9606 has produced recommended values that are within +- 1% of those accepted previously. These measurements together with those of density indicate that the present lots of material are similar to those previously available. Pyrex 7740 and Pyroceram 9606 can continue to be used with confidence as thermal conductivity reference materials for studies on rocks and minerals and other materials of similar thermal conductivity. The uncertainty range for Pyrex 7740 and Pyroceram 9606 up to 300 0 C is +- 10.3% and +- 5.6%, respectively. This range is similar to that indicated for the previously recommended values proposed some 18 years ago. It would appear that the overall state of the art in thermal conductivity measurements for materials in this range has changed little in the intervening years. The above uncertainties, which would have been greater had not three data sets been eliminated, are greater than those which are normally claimed for each individual method. Analyses of these differences through refinements in techniques and additional measurements to higher temperatures are required. 13 refs., 7 figs., 4 tabs

"Robin Hook": The Developmental Effects of Somali Piracy

OpenAIRE

Shortland, Anja

2011-01-01

Copyright @ 2011 Brunel University Naval counter-piracy measures off Somalia have failed to change the incentives for pirates, raising calls for land-based approaches that may involve replacing piracy as a source of income. This paper evaluates the effects of piracy on the Somali economy to establish which (domestic) groups benefit from ransom monies. Given the paucity of economic data on Somalia, we evaluate province-level market data, nightlight emissions and high resolution satellite im...

Big problem - overcapacity of outdoor industry / Robin Rindehed

Index Scriptorium Estoniae

Rindehed, Robin

2004-01-01

Clear Channel Baltics & Russia AB asedirektor valimiste ja EL-iga liitumise võimalikust mõjust Baltimaade reklaamiturule, välireklaami üldisest tasemest Baltimaades ning Balti riikide reklaamiturgude olulisematest erinevustest

Filmimaailm / Aare Ermel

Index Scriptorium Estoniae

Ermel, Aare, 1957-2013

2010-01-01

Oliver Stone töödest. Charlie Chaplin virtuaalmaailmas. Lähiminevikus lahkunud: inglise-kanada filmiajaloolane ja -kriitik Robin Wood (23. II 1931 - 18. XII 2009), vene filmihelilooja Isaak Švarts (13. V 1923 - 27. XII 2009), prantsuse filmi- ja teatrilavastaja Eric Rohmer (4. IV 1920 - 11. I 2010)

Browse Title Index

African Journals Online (AJOL)

Items 1 - 50 of 108 ... Paul Tiyambe Zeleza. Vol 2004, No 1 (2004), Africanity: \\'The (Third) World as a Ghetto\\'?: Looking for A Third Space Between \\'Postmodern\\' Cosmopolitanism and Cultural Nationalism, Abstract. Steven Robins. Vol 1999, No 3-4 (1999), Alien-Nation: Zombies, Immigrants and Millennial Capitalism, Details.

Call mimicry by eastern towhees and its significance in relation to auditory learning

Science.gov (United States)

Jon S. Greenlaw; Clifford E. Shackelford; Raymond E. Brown

1998-01-01

The authors document cases of eastern towhees (Pipilo erythrophthalmus) using mimicked alarm calls from three presumptive models (blue jay (Cyanocitta cristata), brown thrasher (Toxostoma rufum), and American robin (Turdus migratorius)). In four instances, male towhees employed heterospecific calls without substitution in their own call repertoires. Three birds (New...

Journal of Genetics | Indian Academy of Sciences

Indian Academy of Sciences (India)

Home; Journals; Journal of Genetics. Sushil Kumar Jaiswal. Articles written in Journal of Genetics. Volume 93 Issue 3 December 2014 pp 865-868 Research Note. Overlap of Patau and Pierre Robin syndromes along with abnormal metabolism: an interesting case study · Sushil Kumar Jaiswal Krishna Kishore Sukla Vineeta ...

Hearings Before the Select Committee on Nutrition and Human Needs of the United States Senate, Ninety-Second Congress, First Session on Nutrition and Human Needs. Part 10--Micronutrient Supplements for School Lunch Program. Hearings Held Washington, D.C., December 7, 1971.

Science.gov (United States)

Congress of the U.S., Washington, DC. Senate Select Committee on Nutrition and Human Needs.

Contents of these hearings include the statement and testimony of the following witnesses: (1) Alan Young, Research Administrator, Research and Development Division, A. H. Robins Co.; Chairman, Board of Directors, Vitamin Information Bureau; (2) Dr. Joseph M. White, Nutritional and Medical Consultant, Miles Laboratories; (3) Dr. George Briggs,…

77 FR 76515 - Osage Negotiated Rulemaking Committee

Science.gov (United States)

2012-12-28

... sign-up sheet at the meeting for those wishing to speak during the public comment period. The meeting... and Introduction; (2) Overview of prior meeting and action tracking; (3) Members' round robin to share... subcommittee activities; (5) Future Committee activities; (6) Public comments which will be scheduled for 45...

Jagades tulevikku? : uue meedia ja fotohariduse konverents Tartu Kõrgemas Kunstikoolis / Raivo Kelomees

Index Scriptorium Estoniae

Kelomees, Raivo, 1960-

2002-01-01

19. ja 20. IV toimunud konverents "Sharing the Future" oli pühendatud foto ja uue meedia hariduse küsimustele endises Ida-Euroopas. Eestist esinesid Ants Juske ja konverentsi korraldanud Peeter Linnap ning Raivo Kelomees. Briti haridussüsteemist rääkisid Robin Dance ja Paul Rodgers

Academic Futures: Prospects for Post-Secondary Education.

Science.gov (United States)

Shere, Waris, Ed.; Duhamel, Ronald, Ed.

Present trends and future directions in postsecondary education in Canada and the United States are addressed in 15 essays and an introduction by Ron Duhamel. Authors and titles are as follows: "Traditional Values in the Contemporary University" (Robin H. Farquhar); "Facing the Future" (R. J. Duhamel); "Challenges to the…

76 FR 39444 - Notice of Intent To Grant Partially Exclusive License

Science.gov (United States)

2011-07-06

...; Phone (281) 483- 1001; Fax (281) 483-6936. Information about other NASA inventions available for... license in the United States to practice the inventions described and claimed in USPN 6,133,036... principal place of business in Warner Robins, Georgia. The patent rights in these inventions have been...

Sojourn time asymptotics in processor-sharing queues

NARCIS (Netherlands)

Borst, S.C.; Núñez Queija, R.; Zwart, B.

2006-01-01

Over the past few decades, the Processor-Sharing (PS) discipline has attracted a great deal of attention in the queueing literature. While the PS paradigm emerged in the sixties as an idealization of round-robin scheduling in time-shared computer systems, it has recently captured renewed interest as

Gym-based exercise and home-based exercise with telephone support have similar outcomes when used as maintenance programs in adults with chronic health conditions: a randomised trial

Directory of Open Access Journals (Sweden)

Paul Jansons

2017-07-01

Trial registration: ACTRN12610001035011. [Jansons P, Robins L, O’Brien L, Haines T (2017 Gym-based exercise and home-based exercise with telephone support have similar outcomes when used as maintenance programs in adults with chronic health conditions: a randomised trial. Journal of Physiotherapy 63: 154–160

Evaluation of the medical devices benchmark materials in the controlled human patch testing and in the RhE in vitro skin irritation protocol.

NARCIS (Netherlands)

Kandárová, Helena; Bendova, Hana; Letasiova, Silvia; Coleman, Kelly P; De Jong, Wim H; Jírova, Dagmar

2018-01-01

Several irritants were used in the in vitro irritation medical device round robin. The objective of this study was to verify their irritation potential using the human patch test (HPT), an in vitro assay, and in vivo data. The irritants were lactic acid (LA), heptanoic acid (HA), sodium dodecyl

Digital wood craft

DEFF Research Database (Denmark)

Tamke, Martin; Ramsgaard Thomsen, Mette

2009-01-01

In 1995, Robin Evans points out in his book The Projective Cast how the development of techniques changed architecture and the space inhabited in times of Gothic and early Renaissance. We see a parallel phenomenon today, where the interplay of technology and tool gives shape to new design (Kolare...

A Benders approach for the constrained minimum break problem

DEFF Research Database (Denmark)

Rasmussen, Rasmus Vinther; Trick, Michael

2007-01-01

This paper presents a hybrid IP/CP algorithm for designing a double round robin schedule with a minimal number of breaks. Both mirrored and non-mirrored schedules with and without place constraints are considered. The algorithm uses Benders cuts to obtain feasible home-away pattern sets in few it...

Toriello-Carey syndrome : Delineation and review

NARCIS (Netherlands)

Toriello, HV; Carey, JC; Addor, MC; Allen, W; Burke, L; Chun, N; Dobyns, W; Elias, E; Gallagher, R; Hordijk, R; Hoyme, G; Irons, M; Jewett, T; LeMerrer, M; Lubinsky, M; Martin, R; McDonald-McGinn, D; Neumann, L; Newman, W; Pauli, R; Seaver, L; Tsai, A; Wargowsky, D; Williams, M; Zackai, E

2003-01-01

Toriello and Carey [1988: Am J Med Genet 31:17-23] first described a syndrome with component manifestations of corpus callosum agenesis, unusual facial appearance, Robin sequence, and other anomalies. This was termed the Toriello-Carey syndrome by Lacombe et al. [1992: Am J Med Genet 42:374-376].

Publications | Page 368 | IDRC - International Development ...

International Development Research Centre (IDRC) Digital Library (Canada)

Results 3671 - 3680 of 6381 ... Zimbabwe's Exodus: Crisis, Migration, Survival. A rounded and compelling picture of the great exodus and, behind the turmoil of exile and return, we can glimpse the extraordinary people behind the statistics. — Robin Cohen, International Migration Institute, University of Oxford. The ongoing ...

Acoustic Communication in Birds-Differences in Songs and Calls ...

Indian Academy of Sciences (India)

Songs, calls and visual displays of the Oriental magpie robin have been studied in detail. In northern India, this species breeds between May and August raising several broods. During this period, males sing complex and melodious songs in their respective territories for the advertisement of territories and mate acquisition.

Southern African Linguistics and Applied Language Studies - Vol 27 ...

African Journals Online (AJOL)

Bilingualism and psychosis: a linguistic analysis of a patient with differential symptom severity across languages · EMAIL FULL TEXT EMAIL FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. Frenette Southwood, Renata Schoeman, Robin Emsley. http://dx.doi.org/10.2989/SALALS.2009.27.2.4.867 ...

Relationship between resist outgassing and EUV witness sample contamination in NXE outgas qualification using electrons and EUV photons

Science.gov (United States)

Pollentier, I.; Tirumala Venkata, A.; Gronheid, R.

2014-04-01

EUV photoresists are considered as a potential source of optics contamination, since they introduce irradiation-induced outgassing in the EUV vacuum environment. Therefore, before these resists can be used on e.g. ASML NXE:3100 or NXE:3300, they need to be tested in dedicated equipment according to a well-defined procedure, which is based on exposing a witness sample (WS) in the vicinity of a simultaneously exposed resist as it outgasses. Different system infrastructures are used at multiple sites (e.g. NIST, CNSE, Sematech, EIDEC, and imec) and were calibrated to each other by a detailed test plan. Despite this detailed tool qualifications, a first round robin comparison of identical materials showed inconsistent outgas test results, and required further investigation by a second round robin. Since the resist exposure mode is different at the various locations (some sites are using EUV photons while others use E-gun electrons), this difference has always a point of concern for variability of test results. In this work we compare the outgas test results from EUV photon and electron exposure using the resist materials of the second round robin. Since the imec outgas tester allows both exposure methods on the resist, a within-system comparison is possible and showed limited variation between photon and electron exposure mode. Therefore the system-to-system variability amongst the different outgas test sites is expected to be related to other parameters than the electron/photon exposure mode. Initial work showed that the variability might be related to temperature, E-gun emission excursion, and/or residual outgassing scaled by different wafer areas at the different sites.

Summary and recommendations of the NRC/INEL Activated Carbon Testing Program

International Nuclear Information System (INIS)

Scarpellino, C.D.; Sill, C.W.

1986-01-01

The Committee on Nuclear Air and Gas Treatment (CONAGT) of the American Society of Mechanical Engineers (ASME) sponsored an interlaboratory testing program, round-robin, of nuclear-grade activated carbon. The results of this round-robin revealed gross differences in penetration of radio-labeled methyl iodide as measured by the various laboratories when using Method A of the ASTM D-3803-79 Standard. These differences prompted the Nuclear Regulatory Commission (NRC) to establish the NRC/INEL Activated Carbon Testing Program to determine the causes of these discrepancies and to provide recommendations that could lead to an accurate and reliable testing procedure that would ensure an adequate method for assessing the capability of activated carbon to remove radioiodine from gas streams within commercial nuclear power plants. The NRC/INEL Activated Carbon Testing Program has conducted formal and informal interlaboratory comparisons to identify problems with the test method and its application and to assess the effectiveness of changes to procedures and equipment voluntarily implemented by commercial laboratories to mitigate the disparity of test results. The results of the first formal NRC/INEL Interlaboratory Comparison (IC) essentially verified the CONAGT round-robin results despite the use of a detailed test protocol. This data indicated that many of the participating laboratories probably had been operating outside the ASTM specifications for relative humidity (RH) and flow. In addition, this process provided information which was used to modify the testing protocol employed for the second NRC/INEL Interlaboratory Comparison (IC-2) to make it more rugged and reliable. These changes to the protocol together with the results of INEL sensitivity testing are the basis for the recommendations presented

Over-pressure test on BARCOM pre-stressed concrete containment

Energy Technology Data Exchange (ETDEWEB)

Parmar, R.M.; Singh, Tarvinder; Thangamani, I.; Trivedi, Neha; Singh, Ram Kumar, E-mail: rksingh@barc.gov.in

2014-04-01

Bhabha Atomic Research Centre (BARC), Trombay has organized an International Round Robin Analysis program to carry out the ultimate load capacity assessment of BARC Containment (BARCOM) test model. The test model located in BARC facilities Tarapur; is a 1:4 scale representation of 540 MWe Pressurized Heavy Water Reactor (PHWR) pre-stressed concrete inner containment structure of Tarapur Atomic Power Station (TAPS) unit 3 and 4. There are a large number of sensors installed in BARCOM that include vibratory wire strain gauges of embedded and spot-welded type, surface mounted electrical resistance strain gauges, dial gauges, earth pressure cells, tilt meters and high resolution digital camera systems for structural response, crack monitoring and fracture parameter measurement to evaluate the local and global behavior of the containment test model. The model has been tested pneumatically during the low pressure tests (LPTs) followed by proof test (PT) and integrated leakage rate test (ILRT) during commissioning. Further the over pressure test (OPT) has been carried out to establish the failure mode of BARCOM Test-Model. The over-pressure test will be completed shortly to reach the functional failure of the test model. Pre-test evaluation of BARCOM was carried out with the results obtained from the registered international round robin participants in January 2009 followed by the post-test assessment in February 2011. The test results along with the various failure modes related to the structural members – concrete, rebars and tendons identified in terms of prescribed milestones are presented in this paper along with the comparison of the pre-test predictions submitted by the registered participants of the Round Robin Analysis for BARCOM test model.

Managing Small-scale Fisheries

International Development Research Centre (IDRC) Digital Library (Canada)

But the story of this particular book really started in 1997 with Robin's paper in the Canadian Journal of Fisheries and Aquatic Sciences. ..... Some drying, smoking, salting; primarily human consumption. Little or ...... The World Wide Web provides access to a variety of resources that would be otherwise ...... Smith, I.R. 1979.

Journal of Genetics | Indian Academy of Sciences

Indian Academy of Sciences (India)

Epigenetics comes of age in the twentyfirst century · Robin Holliday · More Details Fulltext PDF. pp 5-11 Perspectives. Cloning and characterization of an insecticidal crystal protein gene from Bacillus thuringiensis subspecies kenyae · Hari S. Misra Nivedita P. Khairnar Manjula Mathur N. Vijayalakshmi Remesh S. Hire T. K. ...

Fatal Syngamus trachea Infection in a Barn Owl (Tyto alba) in ...

African Journals Online (AJOL)

in a Pea fowl (Pavo cristatus) ZooPrint Journal 18(9):1204. TARELLO, W. (2008). Efficacy of ivermectins against intestinal capillariosis in falcons Parasite 15(2):. 171-174. WELTE, S.C. and KIRKPATRICK, C.E.. (1986) Syngamiasis injuvenile American robins (Turdus migratorius) with a note on prevalence of other faecal ...

Optimization of traffic light control system of an intersection using ...

African Journals Online (AJOL)

This paper considers an automated static road traffic control system of an intersection for the purpose of minimizing the effects of traffic jam and hence its attendant consequences such as prolonged waiting time, emission of toxic hydrocarbons from automobiles, etc. Using real-time road traffic data, a dynamic round-robin ...

Southern Forests: a Journal of Forest Science - Vol 78, No 2 (2016)

African Journals Online (AJOL)

The value of six key soil variables for incorporation into a South African forest site classification system · EMAIL FULL TEXT EMAIL FULL TEXT DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. Josua H. Louw, 81-95 ... FULL TEXT DOWNLOAD FULL TEXT. Robin A.W. Gardner, Michael J. Savage, Isa Bertling, 105-113.

The Health Status of Women in the Military. An Epidemiological Study of Active Duty Navy and Marine Corps Personnel

Science.gov (United States)

1995-08-24

R) November 7, 1989 Authors Lee Robins, Ph.D. John Heizer , M.D. Unda Cottier. Ph.D. Evelyn Goidring, M.A.T. Copyright 1988 All Rights...internet and E-Mail addresses (if available) 5. Review what Phase I assistance the MLO could render 6. Discuss the RTI team’s survey

International Affairs Programs: The Air Force Versus the Army

Science.gov (United States)

2015-10-01

individual tutoring programs . Additionally RAS personnel are offered regional enhancement studies opportunities at several facilities.48 RAS personnel...AU/ACSC/2015 AIR COMMAND AND STAFF COLLEGE AIR UNIVERSITY INTERNATIONAL AFFAIRS PROGRAMS : THE AIR FORCE VERSUS THE ARMY by Robin L...5 COMPARISON: INTERNATIONAL AFFAIRS PROGRAMS AIR FORCE VERSUS ARMY 8

Cyber Warfare: China’s Strategy to Dominate in Cyber Space

Science.gov (United States)

2011-06-10

fundamentally philosophical in nature rather than based on material goods or wealth . Concepts such as time, power, and wealth are radically different...China, ed David A. Graff and Robin Higham (Boulder, CO: 2002), 285-288. 28Krekel, 6. 29OSC, ―China‘s Naitonal Defence in 2010.‖ 30Ibid. 40

78 FR 37741 - Approval and Promulgation of Implementation Plans; California; South Coast; Contingency Measures...

Science.gov (United States)

2013-06-24

... deliver: Marty Robin, Office of Air Planning (AIR- 2), U.S. Environmental Protection Agency Region 9, 75... INFORMATION CONTACT: Doris Lo, Air Planning Office (AIR-2), U.S. Environmental Protection Agency, Region 9... statute precludes a State from implementing such measures before they are triggered. See, e.g., LEAN v...