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Sample records for science reference materials

  1. Standard and reference materials for environmental science. Part 1. Technical memo

    Energy Technology Data Exchange (ETDEWEB)

    Cantillo, A.Y.

    1995-11-01

    This is the fourth edition of the catalog of reference materials suited for use in environmental science, originally compiled in 1986 for NOAA, IOC, and UNEP. The catalog lists more than 1200 reference materials from 28 producers and contains information about their proper use, sources, availability, and analyte concentrations. Indices are included for elements, isotopes, and organic compounds, as are cross references to CAS registry numbers, alternate names, and chemical structures of selected organic compounds.

  2. Standard and reference materials for environmental science. Part 2. Technical memo

    Energy Technology Data Exchange (ETDEWEB)

    Cantillo, A.Y.

    1995-11-01

    This is the fourth edition of the catalog of reference materials suited for use in environmental science, originally compiled in 1986 for NOAA, IOC, and UNEP. The catalog lists more than 1200 reference materials from 28 producers and contains information about their proper use, sources, availability, and analyte concentrations. Indices are included for elements, isotopes, and organic compounds, as are cross references to CAS registry numbers, alternate names, and chemical structures of selected organic compounds.

  3. Standard and reference materials for marine science. Third edition. Technical memo

    International Nuclear Information System (INIS)

    Cantillo, A.Y.

    1992-08-01

    The third edition of the catalog of reference materials suited for use in marine science, originally compiled in 1986 for NOAA, IOC, and UNEP. The catalog lists close to 2,000 reference materials from sixteen producers and contains information about their proper use, sources, availability, and analyte concentrations. Indices are included for elements, isotopes, and organic compounds, as are cross references to CAS registry numbers, alternate names, and chemical structures of selected organic compounds. The catalog is being published independently by both NOAA and IOC/UNEP and is available from NOAA/NOS/ORCA in electronic form

  4. Electronic Materials Science

    Science.gov (United States)

    Irene, Eugene A.

    2005-02-01

    A thorough introduction to fundamental principles and applications From its beginnings in metallurgy and ceramics, materials science now encompasses such high- tech fields as microelectronics, polymers, biomaterials, and nanotechnology. Electronic Materials Science presents the fundamentals of the subject in a detailed fashion for a multidisciplinary audience. Offering a higher-level treatment than an undergraduate textbook provides, this text benefits students and practitioners not only in electronics and optical materials science, but also in additional cutting-edge fields like polymers and biomaterials. Readers with a basic understanding of physical chemistry or physics will appreciate the text's sophisticated presentation of today's materials science. Instructive derivations of important formulae, usually omitted in an introductory text, are included here. This feature offers a useful glimpse into the foundations of how the discipline understands such topics as defects, phase equilibria, and mechanical properties. Additionally, concepts such as reciprocal space, electron energy band theory, and thermodynamics enter the discussion earlier and in a more robust fashion than in other texts. Electronic Materials Science also features: An orientation towards industry and academia drawn from the author's experience in both arenas Information on applications in semiconductors, optoelectronics, photocells, and nanoelectronics Problem sets and important references throughout Flexibility for various pedagogical needs Treating the subject with more depth than any other introductory text, Electronic Materials Science prepares graduate and upper-level undergraduate students for advanced topics in the discipline and gives scientists in associated disciplines a clear review of the field and its leading technologies.

  5. Uranium reference materials

    International Nuclear Information System (INIS)

    Donivan, S.; Chessmore, R.

    1987-07-01

    The Technical Measurements Center has prepared uranium mill tailings reference materials for use by remedial action contractors and cognizant federal and state agencies. Four materials were prepared with varying concentrations of radionuclides, using three tailings materials and a river-bottom soil diluent. All materials were ground, dried, and blended thoroughly to ensure homogeneity. The analyses on which the recommended values for nuclides in the reference materials are based were performed, using independent methods, by the UNC Geotech (UNC) Chemistry Laboratory, Grand Junction, Colorado, and by C.W. Sill (Sill), Idaho National Engineering Laboratory, Idaho Falls, Idaho. Several statistical tests were performed on the analytical data to characterize the reference materials. Results of these tests reveal that the four reference materials are homogeneous and that no large systematic bias exists between the analytical methods used by Sill and those used by TMC. The average values for radionuclides of the two data sets, representing an unbiased estimate, were used as the recommended values for concentrations of nuclides in the reference materials. The recommended concentrations of radionuclides in the four reference materials are provided. Use of these reference materials will aid in providing uniform standardization among measurements made by remedial action contractors. 11 refs., 9 tabs

  6. Preparation and certification of Sargasso seaweed reference material

    Energy Technology Data Exchange (ETDEWEB)

    Okamoto, Kensaku

    1988-01-01

    Sargasso seaweed reference material was prepared from Sargassum felvellum obtained from an unpolluted area in Japan. The sargasso samples were washed, freeze-dried, pulverized, sieved to pass a 80-mesh screen and finally homogenized. Collaborative studies on the elemental analysis of the sargasso reference material were performed using various analytical techniques. Certified values are provided for Ag, As, Ca, Cd, Co, Cu, Fe, K, Mg, Mn, Na, Pb, Rb, Sr, V and Zn, based on results of determinations by at least three independent analytical techniques. Reference values are reported for Al, Br, Cl, Cr, Cs, Hg, I, P, S, Sb, Sc, Se, Ti and U. The sargasso certified reference material contains high levels of alkali metals, alkaline earth metals, I, Br, As and U, while the concentration of trace elements may be considered to be at the lower end of the range of reported values for marine brown algae. The sargasso sample will be of practical use in marine and environmental sciences as a certified reference material having an elemental composition close to background levels.

  7. Development of natural matrix reference materials for monitoring environmental radioactivity

    International Nuclear Information System (INIS)

    Holmes, A.S.; Houlgate, P.R.; Pang, S.; Brookman, B.

    1992-01-01

    The Department of the Environment commissioned the Laboratory of the Government Chemist to carry out a contract on natural matrix reference materials. A survey of current availability of such materials in the western world, along with the UK's need, was conducted. Four suitable matrices were identified for production and validation. Due to a number of unforeseen problems with the collection, processing and validation of the materials, the production of the four identified reference materials was not completed in the allocated period of time. In the future production of natural matrix reference materials the time required, the cost and the problems encountered should not be underestimated. Certified natural matrix reference materials are a vital part of traceability in analytical science and without them there is no absolute method of checking the validity of measurement in the field of radiochemical analysis. (author)

  8. Computational Materials Science | Materials Science | NREL

    Science.gov (United States)

    Computational Materials Science Computational Materials Science An image of interconnecting, sphere science capabilities span many research fields and interests. Electronic, Optical, and Transport Properties of Photovoltaic Materials Material properties and defect physics of Si, CdTe, III-V, CIGS, CZTS

  9. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    The Bulletin of Materials Science began in the year 1979. ... one of the world's leading interactive databases of high quality STM journals, book series, books, reference works and online archives collection. ... Sadashivanagar, P.B. No. 8005 ...

  10. IAEA biological reference materials

    International Nuclear Information System (INIS)

    Parr, R.M.; Schelenz, R.; Ballestra, S.

    1988-01-01

    The Analytical Quality Control Services programme of the IAEA encompasses a wide variety of intercomparisons and reference materials. This paper reviews only those aspects of the subject having to do with biological reference materials. The 1988 programme foresees 13 new intercomparison exercises, one for major, minor and trace elements, five for radionuclides, and seven for stable isotopes. Twenty-two natural matrix biological reference materials are available: twelve for major, minor and trace elements, six for radionuclides, and four for chlorinated hydrocarbons. Seven new intercomparisons and reference materials are in preparation or under active consideration. Guidelines on the correct use of reference materials are being prepared for publication in 1989 in consultation with other major international producers and users of biological reference materials. The IAEA database on available reference materials is being updated and expanded in scope, and a new publication is planned for 1989. (orig.)

  11. AQCS 1990. Intercomparison runs, reference materials

    International Nuclear Information System (INIS)

    1990-01-01

    The purpose of the Analytical Quality Control Services (AQCS) programme provided by the International Atomic Energy Agency (Agency) is to assist laboratories engaged in the analysis of nuclear, environmental, biological, and materials of marine origin for radionuclide, major, minor and trace elements, as well as stable isotopes using atomic and nuclear analytical techniques, to check the quality of their work. Such a control is necessary since results of analytical activities may be the basis upon which economic, administrative, medical or legal decisions are taken; they must, therefore, be documented to be sufficiently reliable. The Agency has instituted the AQCS-programme which for 1990 will involve distributing samples for Intercomparison Runs and Reference Materials in a way similar to that of previous years. The Agency's Analytical Quality Control Services (AQCS) programme provides mainly three types of materials: materials which can be used in analytical laboratories working in the fields of nuclear technology and isotope hydrology. These include uranium ore Reference Materials and other substances of interest for nuclear fuel technology as well as stable isotope Reference Materials for mass spectrometric determination of isotope ratios in natural waters; materials with known content of uranium, thorium and/or transuranium elements or fission products for the determination of environmental radioactivity or control of nuclear safety; materials for use in the determination of stable trace elements in environmental, biomedical and marine research. Radiochemical methods such as neutron activation or isotope dilution analysis are often used in the determination of such trace elements and constitute an important contribution of nuclear techniques to applied science. Tabs

  12. Materials Informatics: Statistical Modeling in Material Science.

    Science.gov (United States)

    Yosipof, Abraham; Shimanovich, Klimentiy; Senderowitz, Hanoch

    2016-12-01

    Material informatics is engaged with the application of informatic principles to materials science in order to assist in the discovery and development of new materials. Central to the field is the application of data mining techniques and in particular machine learning approaches, often referred to as Quantitative Structure Activity Relationship (QSAR) modeling, to derive predictive models for a variety of materials-related "activities". Such models can accelerate the development of new materials with favorable properties and provide insight into the factors governing these properties. Here we provide a comparison between medicinal chemistry/drug design and materials-related QSAR modeling and highlight the importance of developing new, materials-specific descriptors. We survey some of the most recent QSAR models developed in materials science with focus on energetic materials and on solar cells. Finally we present new examples of material-informatic analyses of solar cells libraries produced from metal oxides using combinatorial material synthesis. Different analyses lead to interesting physical insights as well as to the design of new cells with potentially improved photovoltaic parameters. © 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

  13. Need for organic reference materials in marine science

    Energy Technology Data Exchange (ETDEWEB)

    Wells, D.E.

    1988-12-01

    The reference materials (RMs) available for organic trace analysis (OTA) and the development programmes of the RM producers are reviewed. The need for a wider range of determinants, matrices and classes of RMs, particularly the more widespread use of laboratory RMs (LRMs) is discussed. Additional certified RMs should include phenolic surfactant degradation products, chlorophenolics from the wood and paper industries, and organobromines from fire retardants. RMs as molecular markers of geogenic, pyrogenic and biogenic sources; chlorophylls and xanthophylls as a measure of marine productivity and natural shellfish toxins are proposed.

  14. Learning to Provide 3D Virtual Reference: A Library Science Assignment

    Science.gov (United States)

    Johnson, Megan; Purpur, Geraldine; Abbott, Lisa T.

    2009-01-01

    In spring semester 2009, two of the authors taught LIB 5020--Information Sources & Services to graduate library science students at Appalachian State University. The course covers information seeking patterns and provides an overview of reference services. The course is also designed to examine and evaluate library reference materials and…

  15. Materials and Chemical Sciences Division annual report 1989

    International Nuclear Information System (INIS)

    1990-07-01

    This report describes research conducted at Lawrence Berkeley Laboratories, programs are discussed in the following topics: materials sciences; chemical sciences; fossil energy; energy storage systems; health and environmental sciences; exploratory research and development funds; and work for others. A total of fifty eight programs are briefly presented. References, figures, and tables are included where appropriate with each program

  16. Materials and Chemical Sciences Division annual report 1989

    Energy Technology Data Exchange (ETDEWEB)

    1990-07-01

    This report describes research conducted at Lawrence Berkeley Laboratories, programs are discussed in the following topics: materials sciences; chemical sciences; fossil energy; energy storage systems; health and environmental sciences; exploratory research and development funds; and work for others. A total of fifty eight programs are briefly presented. References, figures, and tables are included where appropriate with each program.

  17. Shock wave science and technology reference library

    CERN Document Server

    2009-01-01

    This book is the second of several volumes on solids in the Shock Wave Science and Technology Reference Library. These volumes are primarily concerned with high-pressure shock waves in solid media, including detonation and high-velocity impact and penetration events. Of the four extensive chapters in this volume, the first two describe the reactive behavior of condensed phase explosives, - Condensed-Phase Explosives: Shock Initiation and Detonation Phenomena (SA Sheffield and R Engelke) - First Principles Molecular Simulations of Energetic Materials at High-Pressures (F Zhang, S Alavi, and TK Woo), and the remaining two discuss the inert, mechanical response of solid materials. - Combined Compression and Shear Plane Waves (ZP Tang and JB Aidun), and - Dynamic Fragmentation of Solids (D Grady). All chapters are each self-contained, and can be read independently of each other. They offer a timely reference, for beginners as well as professional scientists and engineers, on the foundations of detonation phenomen...

  18. Materials Science | NREL

    Science.gov (United States)

    microscopy and imaging science, interfacial and surface science, materials discovery, and thin-film material Science Materials Science Illustration with bottom row showing a ball-and-stick model and top row dense black band. State-of-the-art advances in materials science come from a combination of experiments

  19. Survey of reference materials. V. 2: Environmentally related reference materials for trace elements, nuclides and microcontaminants

    International Nuclear Information System (INIS)

    1996-05-01

    The present report presently contains over 250 reference materials with trace element and organic contaminant information on fuel, geological and mineral, anthropogenic disposal, soil reference and miscellaneous reference materials. Not included in the current report is information on most biological and environmental reference materials with trace element, stable isotope, radioisotope and organic contaminant information. 8 refs, tabs

  20. Reference materials and representative test materials: the nanotechnology case

    International Nuclear Information System (INIS)

    Roebben, G.; Rasmussen, K.; Kestens, V.; Linsinger, T. P. J.; Rauscher, H.; Emons, H.; Stamm, H.

    2013-01-01

    An increasing number of chemical, physical and biological tests are performed on manufactured nanomaterials for scientific and regulatory purposes. Existing test guidelines and measurement methods are not always directly applicable to or relevant for nanomaterials. Therefore, it is necessary to verify the use of the existing methods with nanomaterials, thereby identifying where modifications are needed, and where new methods need to be developed and validated. Efforts for verification, development and validation of methods as well as quality assurance of (routine) test results significantly benefit from the availability of suitable test and reference materials. This paper provides an overview of the existing types of reference materials and introduces a new class of test materials for which the term ‘representative test material’ is proposed. The three generic concepts of certified reference material, reference material(non-certified) and representative test material constitute a comprehensive system of benchmarks that can be used by all measurement and testing communities, regardless of their specific discipline. This paper illustrates this system with examples from the field of nanomaterials, including reference materials and representative test materials developed at the European Commission’s Joint Research Centre, in particular at the Institute for Reference Materials and Measurements (IRMM), and at the Institute for Health and Consumer Protection (IHCP).

  1. Nuclear measurements and reference materials

    International Nuclear Information System (INIS)

    1988-01-01

    This report summarizes the progress of the JRC programs on nuclear data, nuclear metrology, nuclear reference materials and non-nuclear reference materials. Budget restrictions and personnel difficulties were encountered during 1987. Fission properties of 235 U as a function of neutron energy and of the resonances can be successfully described on the basis of a three exit channel fission model. Double differential neutron emission cross-sections were accomplished on 7 Li and were started for the tritium production cross-section of 9 Be. Reference materials of uranium minerals and ores were prepared. Special nuclear targets were prepared. A batch of 250 g of Pu0 2 was characterized in view of certification as reference material for the elemental assay of plutonium

  2. COMAR - database for certified reference materials

    International Nuclear Information System (INIS)

    Klich, H.; Caliste, J.P.

    1988-01-01

    With more than 130 producers of reference materials (RM) throughout the world, it is often difficult to find the best reference material for a specific application. The computer database COMAR has been developed to aid chemists in finding the needed reference material. (orig.)

  3. Three New Offset {delta}{sup 11}B Isotope Reference Materials for Environmental Boron Isotope Studies

    Energy Technology Data Exchange (ETDEWEB)

    Rosner, M. [BAM Federal Institute for Materials Research and Testing, Berlin (Germany); IsoAnalysis UG, Berlin (Germany); Vogl, J. [BAM Federal Institute for Materials Research and Testing, Berlin (Germany)

    2013-07-15

    The isotopic composition of boron is a well established tool in various areas of science and industry. Boron isotope compositions are typically reported as {delta}{sup 11}B values which indicate the isotopic difference of a sample relative to the isotope reference material NIST SRM 951. A significant drawback of all of the available boron isotope reference materials is that none of them covers a natural boron isotope composition apart from NIST SRM 951. To fill this gap of required {delta}{sup 11}B reference materials three new solution boric acid reference materials were produced, which cover 60 per mille of the natural boron isotope variation (-20 to 40 per mille {delta}{sup 11}B) of about 100 per mille . The new reference materials are certified for their {delta}{sup 11}B values and are commercially available through European Reference Materials (http://www.erm-crm.org). The newly produced and certified boron isotope reference materials will allow straightforward method validation and quality control of boron isotope data. (author)

  4. Digital reference service: trends in academic health science libraries.

    Science.gov (United States)

    Dee, Cheryl R

    2005-01-01

    Two years after the initial 2002 study, a greater number of academic health science libraries are offering digital reference chat services, and this number appears poised to grow in the coming years. This 2004 follow-up study found that 36 (27%) of the academic health science libraries examined provide digital chat reference services; this was an approximately 6% increase over the 25 libraries (21%) located in 2002. Trends in digital reference services in academic health science libraries were derived from the exploration of academic health science library Web sites and from digital correspondence with academic health science library personnel using e-mail and chat. This article presents an overview of the current state of digital reference service in academic health science libraries.

  5. A routine chromium determination in biological materials; application to various reference materials and standard reference materials

    International Nuclear Information System (INIS)

    Tjioe, P.S.; Goeij, J.J.M. de; Volkers, K.J.

    1979-01-01

    The determination limit under standard working conditions of chromium in biological materials is discussed. Neutron activation analysis and atomic spectrometry have been described for some analytical experiences with NBS SRM 1577 reference material. The chromium determination is a part of a larger multi-element scheme for the determination of 12 elements in biological materials

  6. Thin-Film Material Science and Processing | Materials Science | NREL

    Science.gov (United States)

    Thin-Film Material Science and Processing Thin-Film Material Science and Processing Photo of a , a prime example of this research is thin-film photovoltaics (PV). Thin films are important because cadmium telluride thin film, showing from top to bottom: glass, transparent conducting oxide (thin layer

  7. Preparation of plant-specific NDA reference material

    International Nuclear Information System (INIS)

    Abedin-Zadeh, R.; Beetle, T.; Kuhn, E.; Terrey, D.; Turel, S.; Busca, G.; Guardini, S.

    1983-01-01

    The importance of having suitable and well characterized non-destructive assay (NDA) reference materials for the verification activities of the safeguards control authorities is stressed. The Euratom Inspectorate and the IAEA have initiated an extensive programme for the procurement and preparation of Joint Euratom/IAEA safeguards NDA reference materials with the active participation of the Ispra Establishment of the Euratom Joint Research Centre. The different type and nature of materials, condition of measurements, and plant characteristics and provisions had to be taken into account for plant-specific NDA reference materials. The preparation of each reference material was planned case by case and specific criteria such as limitations in different facilities, measurement capabilities, conditions, product availability and population variability are being ascertained. A procurement scheme was prepared describing step-by-step procedures detailing responsibilities, measurement conditions, destructive analysis schemes, desired characteristics and methods of data evaluation. This paper describes the principles and procedures carried out for the preparation of a reference MOX pin, low enriched uranium reference rods, low enriched uranium reference drums, reference MTR assemblies, and THTR reference pebbles. The scheme for each characterization technique is presented. (author)

  8. Certified reference materials and reference methods for nuclear safeguards and security.

    Science.gov (United States)

    Jakopič, R; Sturm, M; Kraiem, M; Richter, S; Aregbe, Y

    2013-11-01

    Confidence in comparability and reliability of measurement results in nuclear material and environmental sample analysis are established via certified reference materials (CRMs), reference measurements, and inter-laboratory comparisons (ILCs). Increased needs for quality control tools in proliferation resistance, environmental sample analysis, development of measurement capabilities over the years and progress in modern analytical techniques are the main reasons for the development of new reference materials and reference methods for nuclear safeguards and security. The Institute for Reference Materials and Measurements (IRMM) prepares and certifices large quantities of the so-called "large-sized dried" (LSD) spikes for accurate measurement of the uranium and plutonium content in dissolved nuclear fuel solutions by isotope dilution mass spectrometry (IDMS) and also develops particle reference materials applied for the detection of nuclear signatures in environmental samples. IRMM is currently replacing some of its exhausted stocks of CRMs with new ones whose specifications are up-to-date and tailored for the demands of modern analytical techniques. Some of the existing materials will be re-measured to improve the uncertainties associated with their certified values, and to enable laboratories to reduce their combined measurement uncertainty. Safeguards involve the quantitative verification by independent measurements so that no nuclear material is diverted from its intended peaceful use. Safeguards authorities pay particular attention to plutonium and the uranium isotope (235)U, indicating the so-called 'enrichment', in nuclear material and in environmental samples. In addition to the verification of the major ratios, n((235)U)/n((238)U) and n((240)Pu)/n((239)Pu), the minor ratios of the less abundant uranium and plutonium isotopes contain valuable information about the origin and the 'history' of material used for commercial or possibly clandestine purposes, and

  9. NBS activities in biological reference materials

    Energy Technology Data Exchange (ETDEWEB)

    Rasberry, S.D.

    1988-12-01

    NBS activities in biological reference materials during 1986-1988 are described with a preview of plans for future certifications of reference materials. During the period, work has been completed or partially completed on about 40 reference materials of importance to health, nutrition, and environmental quality. Some of the reference materials that have been completed during the period and are described include: creatinine (SRM 914a), bovine serum albumin (SRM 927a), cholesterol in human serum (SRM's 1951-1952), aspartate aminotransferase (RM 8430), cholesterol and fat-soluble vitamins in coconut oil (SRM 1563), wheat flour (SRM 1567a), rice flour (SRM 1568a), mixed diet (RM 8431a), dinitropyrene isomers and 1-nitropyrene (SRM 1596), and complex PAH's from coal tar (SRM 1597). Oyster tissue (SRM 1566a) is being analyzed and should be available in 1988.

  10. Reference material systems: a sourcebook for material assessment

    Energy Technology Data Exchange (ETDEWEB)

    Bhagat, N. (ed.)

    1976-12-01

    A reference set of data related to material systems and a framework for carrying out the material technologies assessment are presented. While the bulk of renewables have been considered in this report, the nonrenewable materials dealt with here include structural materials only, such as steel, aluminum, cement and concrete, and bricks. The complete data set is supposed to include material flows, energy requirements, capital and labor inputs, and environmental effects for each process that a resource must go through to become a useful material for an end use. Although effort has been made to obtain as much information as possible, considerable gaps in data, apparent throughout this report, could not be avoided. A new material technology can be evaluated by substituting that technology for appropriate elements of the reference materials system and calculating the net change in material resource, energy, capital and labor requirements, and environmental impacts. This combination of information thus serves as a means of evaluating the potential benefits to be gained by research in various material technologies.

  11. Determination of platinum-group elements in the geological standard reference materials by isotope dilution-ICPMS

    Energy Technology Data Exchange (ETDEWEB)

    Mingyue, Hu; Hongliao, He [National Research Center for Geoanalysis, Beijing (China)

    2005-10-15

    Platinum group elements (PGEs) includes platinum, palladium, iridium, osmium, rhodium and ruthenium. It has very high economic and scientific value in the field of geoscience and environmental science. But the analysis data referred by the different lab are very disperse because of the difficulty of the determination of PGEs. It makes very difficult to fix the value of the PGEs in the standard reference materials. In the article, the values of the PGEs in the standard reference materials of ocean sediment are determined by isotope dilution technique and dependable values of these elements are provided. (authors)

  12. Determination of platinum-group elements in the geological standard reference materials by isotope dilution-ICPMS

    International Nuclear Information System (INIS)

    Hu Mingyue; He Hongliao

    2005-01-01

    Platinum group elements (PGEs) includes platinum, palladium, iridium, osmium, rhodium and ruthenium. It has very high economic and scientific value in the field of geoscience and environmental science. But the analysis data referred by the different lab are very disperse because of the difficulty of the determination of PGEs. It makes very difficult to fix the value of the PGEs in the standard reference materials. In the article, the values of the PGEs in the standard reference materials of ocean sediment are determined by isotope dilution technique and dependable values of these elements are provided. (authors)

  13. 15 CFR 230.3 - New Standard Reference Materials.

    Science.gov (United States)

    2010-01-01

    ... NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, DEPARTMENT OF COMMERCE STANDARD REFERENCE MATERIALS STANDARD REFERENCE MATERIALS General Information § 230.3 New Standard Reference Materials. When new SRM's... scientific and trade journals. ...

  14. Materials science

    International Nuclear Information System (INIS)

    Anon.

    1977-01-01

    The Materials Science Division is engaged in research on physical properties of materials and the effects of radiation upon them. This involves solid state materials undergoing phase transitions, energy storing materials, and biomaterials. The Division also offers research facilities for M.S. and Ph.D. thesis work in the fields of physics, chemistry, materials, and radiation sciences in cooperation with the various colleges and departments of the UPR Mayaguez Campus. It is anticipated that it will serve as a catalyst in starting energy-related research programs in cooperation with UPR faculty, especially programs involving solar energy. To encourage and promote cooperative efforts, contact is maintained with former graduate students and with visiting scientists from Latin American research institutions

  15. Value assignment of nutrient concentrations in five standard reference materials and six reference materials.

    Science.gov (United States)

    Sharpless, K E; Gill, L M

    2000-01-01

    A number of food-matrix reference materials (RMs) are available from the National Institute of Standards and Technology (NIST) and from Agriculture Canada through NIST. Most of these materials were originally value-assigned for their elemental composition (major, minor, and trace elements), but no additional nutritional information was provided. Two of the materials were certified for selected organic constituents. Ten of these materials (Standard Reference Material [SRM] 1,563 Cholesterol and Fat-Soluble Vitamins in Coconut Oil [Natural and Fortified], SRM 1,566b Oyster Tissue, SRM 1,570a Spinach Leaves, SRM 1,974a Organics in Mussel Tissue (Mytilus edulis), RM 8,415 Whole Egg Powder, RM 8,418 Wheat Gluten, RM 8,432 Corn Starch, RM 8,433 Corn Bran, RM 8,435 Whole Milk Powder, and RM 8,436 Durum Wheat Flour) were recently distributed by NIST to 4 laboratories with expertise in food analysis for the measurement of proximates (solids, fat, protein, etc.), calories, and total dietary fiber, as appropriate. SRM 1846 Infant Formula was distributed as a quality control sample for the proximates and for analysis for individual fatty acids. Two of the materials (Whole Egg Powder and Whole Milk Powder) were distributed in an earlier interlaboratory comparison exercise in which they were analyzed for several vitamins. Value assignment of analyte concentrations in these 11 SRMs and RMs, based on analyses by the collaborating laboratories, is described in this paper. These materials are intended primarily for validation of analytical methods for the measurement of nutrients in foods of similar composition (based on AOAC INTERNATIONAL's fat-protein-carbohydrate triangle). They may also be used as "primary control materials" in the value assignment of in-house control materials of similar composition. The addition of proximate information for 10 existing reference materials means that RMs are now available from NIST with assigned values for proximates in 6 of the 9 sectors of

  16. Materials Science Programs

    International Nuclear Information System (INIS)

    1990-03-01

    The Division of Materials Sciences is located within the Department of Energy in the Office of Basic Energy Sciences. The Office of Basic Energy Sciences reports to the Director of the Office of Energy Research. The Director of this office is appointed by the President with Senate consent. The Director advises the Secretary on the physical research program; monitors the Department's R ampersand D programs; advises the Secretary on management of the laboratories under the jurisdiction of the Department, excluding those that constitute part of the nuclear weapon complex; and advises the Secretary on basic and applied research activities of the Department. The research covers a spectrum of scientific and engineering areas of interest to the Department of Energy and is conducted generally by personnel trained in the disciplines of Solid State Physics, Metallurgy, Ceramics, Chemistry, Polymers and Materials Science. The Materials Sciences Division supports basic research on materials properties and phenomena important to all energy systems. The aim is to provide the necessary base of materials knowledge required to advance the nation's energy programs. This report contains a listing of research underway in FY 1989 together with a convenient index to the Division's programs

  17. Material Science

    Energy Technology Data Exchange (ETDEWEB)

    Won, Dong Yeon; Kim, Heung

    1987-08-15

    This book introduces material science, which includes key of a high-tech industry, new materials of dream like new metal material and semiconductor, classification of materials, microstructure of materials and characteristic. It mentions magic new materials such as shape memory alloy, fine ceramics, engineering fine ceramics, electronic ceramics, engineering plastic, glass, silicone conductor, optical fiber mixed materials and integrated circuit, challenge for new material and development of new materials.

  18. Material Science

    International Nuclear Information System (INIS)

    Won, Dong Yeon; Kim, Heung

    1987-08-01

    This book introduces material science, which includes key of a high-tech industry, new materials of dream like new metal material and semiconductor, classification of materials, microstructure of materials and characteristic. It mentions magic new materials such as shape memory alloy, fine ceramics, engineering fine ceramics, electronic ceramics, engineering plastic, glass, silicone conductor, optical fiber mixed materials and integrated circuit, challenge for new material and development of new materials.

  19. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    College of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China; Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin 541004, China; Department of Materials Science and Engineering, Luoyang Institute of Science and ...

  20. The role of certified reference materials in material control and accounting

    International Nuclear Information System (INIS)

    Turel, S.P.

    1979-01-01

    One way of providing an adequate material control and accounting system for the nuclear fuel cycle is to calculate material unaccounted for (MUF) after a physical inventory and to compare the limit of error of the MUF value (LEMUF) against prescribed criteria. To achieve a meaningful LEMUF, a programme for the continuing determination of systematic and random errors is necessary. Within this programme it is necessary to achieve traceability of all Special Nuclear Material (SNM) control and accounting measurements to an International/National Measurement System by means of Certified Reference Materials. SNM measurements for control and accounting are made internationally on a great variety of materials using many diverse measurement procedures by a large number of facilities. To achieve valid overall accountability over this great variety of measurements there must be some means of relating all these measurements and their uncertainties to each other. This is best achieved by an International/National Measurement System (IMS/NMS). To this end, all individual measurement systems must be compatible to the IMS/NMS and all measurement results must be traceable to appropriate international/national Primary Certified Reference Materials. To obtain this necessary compatibility for any given SNM measurement system, secondary certified reference materials or working reference materials are needed for every class of SNM and each type of measurement system. Ways to achieve ''traceability'' and the various types of certified reference material are defined and discussed in this paper. (author)

  1. Materials Science

    Science.gov (United States)

    2003-01-01

    The Materials Science Program is structured so that NASA s headquarters is responsible for the program content and selection, through the Enterprise Scientist, and MSFC provides for implementation of ground and flight programs with a Discipline Scientist and Discipline Manager. The Discipline Working Group of eminent scientists from outside of NASA acts in an advisory capacity and writes the Discipline Document from which the NRA content is derived. The program is reviewed approximately every three years by groups such as the Committee on Microgravity Research, the National Materials Advisory Board, and the OBPR Maximization and Prioritization (ReMaP) Task Force. The flight program has had as many as twenty-six principal investigators (PIs) in flight or flight definition stage, with the numbers of PIs in the future dependent on the results of the ReMaP Task Force and internal reviews. Each project has a NASA-appointed Project Scientist, considered a half-time job, who assists the PI in understanding and preparing for internal reviews such as the Science Concept Review and Requirements Definition Review. The Project Scientist also insures that the PI gets the maximum science support from MSFC, represents the PI to the MSFC community, and collaborates with the Project Manager to insure the project is well-supported and remains vital. Currently available flight equipment includes the Materials Science Research Rack (MSRR-1) and Microgravity Science Glovebox. Ground based projects fall into one or more of several categories. Intellectual Underpinning of Flight Program projects include theoretical studies backed by modeling and computer simulations; bring to maturity new research, often by young researchers, and may include preliminary short duration low gravity experiments in the KC-135 aircraft or drop tube; enable characterization of data sets from previous flights; and provide thermophysical property determinations to aid PIs. Radiation Shielding and preliminary In

  2. 2002 Microgravity Materials Science Conference

    Science.gov (United States)

    Gillies, Donald (Editor); Ramachandran, Narayanan (Editor); Murphy, Karen (Editor); McCauley, Dannah (Editor); Bennett, Nancy (Editor)

    2003-01-01

    The 2002 Microgravity Materials Science Conference was held June 25-26, 2002, at the Von Braun Center, Huntsville, Alabama. Organized by the Microgravity Materials Science Discipline Working Group, sponsored by the Physical Sciences Research Division, NASA Headquarters, and hosted by NASA Marshall Space Flight Center and member institutions under the Cooperative Research in Biology and Materials Science (CORBAMS) agreement, the conference provided a forum to review the current research and activities in materials science, discuss the envisioned long-term goals, highlight new crosscutting research areas of particular interest to the Physical Sciences Research Division, and inform the materials science community of research opportunities in reduced gravity. An abstracts book was published and distributed at the conference to the approximately 240 people attending, who represented industry, academia, and other NASA Centers. This CD-ROM proceedings is comprised of the research reports submitted by the Principal Investigators in the Microgravity Materials Science program.

  3. Materials science symposium 'materials science using accelerators'

    International Nuclear Information System (INIS)

    Ishii, Tetsuro; Asai, Masato; Chimi, Yasuhiro

    2005-07-01

    The facility of the JAERI-Tokai tandem accelerator and its booster has been contributing to advancing heavy-ion sciences in the fields of nuclear physics, nuclear chemistry, atomic and solid-state physics and materials science, taking advantage of its prominent performance of heavy-ion acceleration. This facility was recently upgraded by changing the acceleration tubes and installing an ECR ion-source at the terminal. The radioactive nuclear beam facility (Tokai Radioactive Ion Accelerator Complex, TRIAC) was also installed by the JAERI-KEK joint project. On this occasion, this meeting was held in order to provide a new step for the advancement of heavy-ion science, and to exchange information on recent activities and future plans using the tandem facility as well as on promising new experimental techniques. This meeting was held at Tokai site of JAERI on January 6th and 7th in 2005, having 24 oral presentations, and was successfully carried out with as many as 90 participants and lively discussions among scientists from all the fields of heavy-ion science, including solid-sate physics, nuclear physics and chemistry, and accelerator physics. This summary is the proceedings of this meeting. We would like to thank all the staffs of the accelerators section, participants and office workers in the Department of Materials Science for their support. The 24 of the presented papers are indexed individually. (J.P.N.)

  4. AQCS 1989 - Intercomparison runs reference materials

    International Nuclear Information System (INIS)

    1989-01-01

    The purpose of the Analytical Quality Control Services (AQCS) programme provided by the International Atomic Energy Agency (Agency) is to assist laboratories engaged in the analysis of nuclear, environmental, biological, and materials of marine origin for radionuclide, major, minor and trace elements, as well as stable isotopes using atomic and nuclear analytical techniques, to check the quality of their work. Reference Materials available are listed by origin and by analyte giving referenced values and confidence intervals. Only materials, which have one or more properties sufficiently well established from statistical evaluation of previous interlaboratory comparison studies are included. Existing Reference Materials may be updated for previously referenced constituents or properties according to the results of the Agency's Co-ordinated Research Programmes (CRPs) in these fields or according to recently published literature values. They are supplied with a reference sheet stating relevant parameters and properties of the material and can be used as secondary standards for quality control assurance within a laboratory, for checking analytical methods and/or instrumentation or for training purposes. 4 tabs

  5. 235Uranium isotope abundance certified reference material for gamma spectrometry EC nuclear reference material 171 certification report

    International Nuclear Information System (INIS)

    De Bievre, P.; Eschbach, H.L.; Lesser, R.; Meyer, H.; Audenhove, Van J.

    1986-01-01

    This certification report contains the information necessary for the final certification of EC nuclear reference material 171. It is also intended to inform the user of the reference material concerned on technical/scientific details which are not given in the certificate. The report describes the reference material which consists of sets of U 3 O 8 samples with five different 235 U/U abundances, filled in cylindrical aluminium cans. The can bottom serves as window for emitted gamma radiation. The report describes how the 235 U/U abundances were characterized, how the other properties relevant for gamma measurements were determined and gives all connected results as well as those from the verification measurements. Appendix A represents the draft certificate. 32 refs

  6. Reference materials for microanalytical nuclear techniques

    Energy Technology Data Exchange (ETDEWEB)

    Injuk, Jasna; Grieken, Rene van [Department of Chemistry, Micro and Trace Analysis Centre, University of Antwerp, Wilrijk-Antwerp (Belgium)

    1994-07-01

    This paper discusses some issues concerning reference materials required for microanalysis including physical and chemical properties of the sample matrix and homogeneity of the chemical composition. It gives some examples of the mst common standards used. Further the paper gives background information about the Micro- and Trace Analysis Center of the University of Antwerp, Belgium and discusses recent results of the Center in microanalysis of reference materials.

  7. Materials Science Laboratory

    Science.gov (United States)

    Jackson, Dionne

    2005-01-01

    The NASA Materials Science Laboratory (MSL) provides science and engineering services to NASA and Contractor customers at KSC, including those working for the Space Shuttle. International Space Station. and Launch Services Programs. These services include: (1) Independent/unbiased failure analysis (2) Support to Accident/Mishap Investigation Boards (3) Materials testing and evaluation (4) Materials and Processes (M&P) engineering consultation (5) Metrology (6) Chemical analysis (including ID of unknown materials) (7) Mechanical design and fabrication We provide unique solutions to unusual and urgent problems associated with aerospace flight hardware, ground support equipment and related facilities.

  8. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 27; Issue 5 ... The electrical performances of thin film material can be improved largely by dopants. ... Department of Materials Science and Engineering, Jinan University, Jinan 250022, PR China; The State Key Laboratory of Material Composite and Advanced ...

  9. Biomaterials science an introduction to materials in medicine

    CERN Document Server

    Ratner, Buddy D; Lemons, Jack E; Yaszemski, Michael J; Yaszemski, Michael

    2004-01-01

    The second edition of this bestselling title provides the most up-to-date comprehensive review of all aspects of biomaterials science by providing a balanced, insightful approach to learning biomaterials. This reference integrates a historical perspective of materials engineering principles with biological interactions of biomaterials. Also provided within are regulatory and ethical issues in addition to future directions of the field, and a state-of-the-art update of medical and biotechnological applications. All aspects of biomaterials science are thoroughly addressed, from tissue engineering to cochlear prostheses and drug delivery systems. Over 80 contributors from academia, government and industry detail the principles of cell biology, immunology, and pathology. Focus within pertains to the clinical uses of biomaterials as components in implants, devices, and artificial organs. This reference also touches upon their uses in biotechnology as well as the characterization of the physical, chemical, biochemi...

  10. NASA Microgravity Materials Science Conference

    Science.gov (United States)

    Gillies, D. C. (Compiler); McCauley, D. E. (Compiler)

    1999-01-01

    The Microgravity Materials Science Conference was held July 14-16, 1998 at the Von Braun Center in Huntsville, AL. It was organized by the Microgravity Materials Science Discipline Working Group, sponsored by the Microgravity Research Division at NASA Headquarters, and hosted by the NASA Marshall Space Flight Center and the Alliance for Microgravity Materials Science and Applications. It was the third NASA conference of this type in the microgravity materials science discipline. The microgravity science program sponsored approximately 125 investigations and 100 principal investigators in FY98, almost all of whom made oral or poster presentations at this conference. The conference's purpose was to inform the materials science community of research opportunities in reduced gravity in preparation for a NASA Research Announcement scheduled for release in late 1998 by the Microgravity Research Division at NASA Headquarters. The conference was aimed at materials science researchers from academia, industry, and government. A tour of the Marshall Space Flight Center microgravity research facilities was held on July 16, 1998. This volume is comprised of the research reports submitted by the principal investigators after the conference.

  11. The importance of reference materials in doping-control analysis.

    Science.gov (United States)

    Mackay, Lindsey G; Kazlauskas, Rymantas

    2011-08-01

    Currently a large range of pure substance reference materials are available for calibration of doping-control methods. These materials enable traceability to the International System of Units (SI) for the results generated by World Anti-Doping Agency (WADA)-accredited laboratories. Only a small number of prohibited substances have threshold limits for which quantification is highly important. For these analytes only the highest quality reference materials that are available should be used. Many prohibited substances have no threshold limits and reference materials provide essential identity confirmation. For these reference materials the correct identity is critical and the methods used to assess identity in these cases should be critically evaluated. There is still a lack of certified matrix reference materials to support many aspects of doping analysis. However, in key areas a range of urine matrix materials have been produced for substances with threshold limits, for example 19-norandrosterone and testosterone/epitestosterone (T/E) ratio. These matrix-certified reference materials (CRMs) are an excellent independent means of checking method recovery and bias and will typically be used in method validation and then regularly as quality-control checks. They can be particularly important in the analysis of samples close to threshold limits, in which measurement accuracy becomes critical. Some reference materials for isotope ratio mass spectrometry (IRMS) analysis are available and a matrix material certified for steroid delta values is currently under production. In other new areas, for example the Athlete Biological Passport, peptide hormone testing, designer steroids, and gene doping, reference material needs still need to be thoroughly assessed and prioritised.

  12. Radioactive certified reference materials

    International Nuclear Information System (INIS)

    Watanabe, Kazuo

    2010-01-01

    Outline of radioactive certified reference materials (CRM) for the analysis of nuclear materials and radioactive nuclides were described. The nuclear fuel CRMs are supplied by the three institutes: NBL in the US, CETAMA in France and IRMM in Belgium. For the RI CRMs, the Japan Radioisotope Association is engaged in activities concerning supply. The natural-matrix CRMs for the analysis of trace levels of radio-nuclides are prepared and supplied by NIST in the US and the IAEA. (author)

  13. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 29; Issue 5 ... Polyester urethane; scaffold; tensile strength; swelling; degradation; cell culture. ... Materials Science Centre, Indian Institute of Technology, Kharagpur 721 302, India; School of Medical Science and Technology, Indian Institute of Technology, Kharagpur ...

  14. Materials science

    International Nuclear Information System (INIS)

    2002-01-01

    the document is a collection of papers on different aspects of materials science. It discusses many items such as semiconductors, surface properties and interfaces, construction and civil engineering, metallic materials, polymers and composites, biology and biomaterials, metallurgy etc.. - 1 - Document1 Document1

  15. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. SARAVANA KUMAR JAGANATHAN. Articles written in Bulletin of Materials Science. Volume 41 Issue 1 February 2018 pp 18. Advanced nanofibrous textile-based dressing material for treating chronic wounds · ISABEL HERRMANN EKO SUPRIYANTO SARAVANA KUMAR ...

  16. Interfacial and Surface Science | Materials Science | NREL

    Science.gov (United States)

    Science group within the Material Science Center. He oversees research studies of surfaces and interfaces Interfacial and Surface Science Interfacial and Surface Science Image of irregular-outlined, light address a broad range of fundamental and applied issues in surface and interfacial science that are

  17. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. ISABEL HERRMANN. Articles written in Bulletin of Materials Science. Volume 41 Issue 1 February 2018 pp 18. Advanced nanofibrous textile-based dressing material for treating chronic wounds · ISABEL HERRMANN EKO SUPRIYANTO SARAVANA KUMAR JAGANATHAN A ...

  18. Materials Science and Engineering |

    Science.gov (United States)

    Engineering? What Is Materials Science and Engineering? MSE combines engineering, physics and chemistry to solve problems in nanotechnology, biotechnology, information technology, energy, manufacturing, and more ,' which could replace steel. Materials Science and Mechanical Engineering Professors work together to

  19. Preparation and characterization of the fish reference material

    International Nuclear Information System (INIS)

    Ulrich, Joao Cristiano

    2011-01-01

    The certified reference materials (CRMs) play an important role in obtaining measurement results traceable to the International System of Units, through an unbroken chain of comparisons. Thus, the demand for new certified reference materials (CRMs) increases every day in all areas of knowledge. The availability of reference materials, mainly in Brazil is still incipient, given that the demand far exceeds the available variety of these materials. The amount of certified reference materials available in the country is insufficient to meet the need of the scientific community and demands for development of new methodologies. Among the many areas in need of reference materials, we highlight the importance for the food trade balance for these products within the country. The certification of food products, intended both for export and for domestic consumption, requires analysis methods that provide precise and accurate results to ensure product quality. This paper describes the preparation and certification of a reference material in the fish matrix in mercury and methylmercury. The study brings together since the stage of material selection, preparation, development of homogeneity and stability studies and characterization. The certification was performed by means of measurements using two analytical techniques, flow injection analysis - cold vapor atomic absorption spectrometry (FIA-CV-AAS) and isotope dilution applied to mass spectrometry (IDMS), which is a primary method. In this work the standards of the ISO 30 (ABNT 30-34) and ISO Guide 35 was used as the basis for the preparation and characterization of the material. For the calculation of uncertainties was used the GUM and Eurachem guide. As a result, was produced and certified a lot of material in relation to the concentration of mercury (Hg = 0.271 ± 0.057 mg g -1 ) and methylmercury (MeHg = 0.245 ± 0.038 mg g -1 ), and informational values of lead and arsenic. (author)

  20. Materials sciences programs, Fiscal year 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-10-01

    The Division of Materials Sciences is responsible for basic research and research facilities in materials science topics important to the mission of the Department of Energy. The programmatic divisions under the Office of Basic Energy Sciences are Chemical Sciences, Engineering and Geosciences, and Energy Biosciences. Materials Science is an enabling technology. The performance parameters, economics, environmental acceptability and safety of all energy generation, conversion, transmission and conservation technologies are limited by the properties and behavior of materials. The Materials Sciences programs develop scientific understanding of the synergistic relationship among synthesis, processing, structure, properties, behavior, performance and other characteristics of materials. Emphasis is placed on the development of the capability to discover technologically, economically, and environmentally desirable new materials and processes, and the instruments and national user facilities necessary for achieving such progress. Materials Sciences subfields include: physical metallurgy, ceramics, polymers, solid state and condensed matter physics, materials chemistry, surface science and related disciplines where the emphasis is on the science of materials. This report includes program descriptions for 517 research programs including 255 at 14 DOE National Laboratories, 262 research grants (233 of which are at universities), and 29 Small Business Innovation Research Grants. Five cross-cutting indices located at the rear of this book identify all 517 programs according to principal investigator(s), materials, techniques, phenomena, and environment.

  1. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Ming Kang1 2 Xiaoming Liao1 Guangfu Yin1 Xun Sun3 Xing Yin4 Lu Xie4 Jun Liu2. College of Materials Science and Engineering, Sichuan University, Chengdu 610064, China; College of Material Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China; Department of ...

  2. Biological reference materials and analysis of toxic elements

    Energy Technology Data Exchange (ETDEWEB)

    Subramanian, R; Sukumar, A

    1988-12-01

    Biological monitoring of toxic metal pollution in the environment requires quality control analysis with use of standard reference materials. A variety of biological tissues are increasingly used for analysis of element bioaccumulation, but the available Certified Reference Materials (CRMs) are insufficient. An attempt is made to review the studies made using biological reference materials for animal and human tissues. The need to have inter-laboratory studies and CRM in the field of biological monitoring of toxic metals is also discussed.

  3. Reference Data Layers for Earth and Environmental Science: History, Frameworks, Science Needs, Approaches, and New Technologies

    Science.gov (United States)

    Lenhardt, W. C.

    2015-12-01

    Global Mapping Project, Web-enabled Landsat Data (WELD), International Satellite Land Surface Climatology Project (ISLSCP), hydrology, solid earth dynamics, sedimentary geology, climate modeling, integrated assessments and so on all have needs for or have worked to develop consistently integrated data layers for Earth and environmental science. This paper will present an overview of an abstract notion of data layers of this types, what we are referring to as reference data layers for Earth and environmental science, highlight some historical examples, and delve into new approaches. The concept of reference data layers in this context combines data availability, cyberinfrastructure and data science, as well as domain science drivers. We argue that current advances in cyberinfrastructure such as iPython notebooks and integrated science processing environments such as iPlant's Discovery Environment coupled with vast arrays of new data sources warrant another look at the how to create, maintain, and provide reference data layers. The goal is to provide a context for understanding science needs for reference data layers to conduct their research. In addition, to the topics described above this presentation will also outline some of the challenges to and present some ideas for new approaches to addressing these needs. Promoting the idea of reference data layers is relevant to a number of existing related activities such as EarthCube, RDA, ESIP, the nascent NSF Regional Big Data Innovation Hubs and others.

  4. Bayesian optimization for materials science

    CERN Document Server

    Packwood, Daniel

    2017-01-01

    This book provides a short and concise introduction to Bayesian optimization specifically for experimental and computational materials scientists. After explaining the basic idea behind Bayesian optimization and some applications to materials science in Chapter 1, the mathematical theory of Bayesian optimization is outlined in Chapter 2. Finally, Chapter 3 discusses an application of Bayesian optimization to a complicated structure optimization problem in computational surface science. Bayesian optimization is a promising global optimization technique that originates in the field of machine learning and is starting to gain attention in materials science. For the purpose of materials design, Bayesian optimization can be used to predict new materials with novel properties without extensive screening of candidate materials. For the purpose of computational materials science, Bayesian optimization can be incorporated into first-principles calculations to perform efficient, global structure optimizations. While re...

  5. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. BALDEV RAJ. Articles written in Bulletin of Materials Science. Volume 26 Issue 4 June 2003 pp 449-460 Instrumentation. Thermogravimetry-evolved gas analysis–mass spectrometry system for materials research · M Kamruddin P K Ajikumar S Dash A K Tyagi Baldev Raj.

  6. Materials Sciences Division long range plan

    International Nuclear Information System (INIS)

    1984-12-01

    The intent of this document is to provide a framework for programmatic guidance into the future for Materials Sciences. The Materials Sciences program is the basic research program for materials in the Department of Energy. It includes a wide variety of activities associated with the sciences related to materials. It also includes the support for developing, constructing, and operating major facilities which are used extensively but not exclusively by the materials sciences

  7. Development of solid water-equivalent radioactive certified reference materials

    International Nuclear Information System (INIS)

    Finke, E.; Greupner, H.; Groche, K.; Rittwag, R.; Geske, G.

    1991-01-01

    This paper presents a brief description of the development of solid water-equivalent beta volume radioactive certified reference materials. These certified reference materials were prepared for the beta fission nuclides 90 Sr/ 90 Y, 137 Cs, 147 Pm and 204 Tl. Comparative measurements of liquid and solid water-equivalent beta volume radioactive certified reference materials are discussed. (author)

  8. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. DANUTA OLSZEWSKA. Articles written in Bulletin of Materials Science. Volume 41 Issue 1 February 2018 pp 16. Influence of the conditions of a solid-state synthesis anode material Li 4 Ti 5 O 12 on its electrochemical properties of lithium cells · DANUTA OLSZEWSKA ANNA ...

  9. New reference materials improvement of methods of measurements

    International Nuclear Information System (INIS)

    Marchandise, H.

    1985-01-01

    The report summarizes the development of about 120 reference materials in a variety of fields (non ferrous metals, trace element analysis, food products, biomedical analysis, physical and technical properties of solid materials). The document also provides practical advice for trace element analyses, describes the principles followed for certifying reference materials and provides recommendations for their use

  10. Development of solid water-equivalent radioactive certified reference materials

    Energy Technology Data Exchange (ETDEWEB)

    Finke, E.; Greupner, H.; Groche, K.; Rittwag, R. (Office for Standardization, Metrology and Quality Control (ASMW), Berlin (Germany, F.R.)); Geske, G. (Jena Univ. (Germany, F.R.))

    1991-01-01

    This paper presents a brief description of the development of solid water-equivalent beta volume radioactive certified reference materials. These certified reference materials were prepared for the beta fission nuclides {sup 90}Sr/{sup 90}Y, {sup 137}Cs, {sup 147}Pm and {sup 204}Tl. Comparative measurements of liquid and solid water-equivalent beta volume radioactive certified reference materials are discussed. (author).

  11. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. S Roy. Articles written in Bulletin of Materials Science. Volume 25 Issue 6 November 2002 pp 513-515. Improved zinc oxide film for gas sensor applications · S Roy S Basu · More Details Abstract Fulltext PDF. Zinc oxide (ZnO) is a versatile material for different commercial ...

  12. FWP executive summaries: Basic energy sciences materials sciences programs

    Energy Technology Data Exchange (ETDEWEB)

    Samara, G.A.

    1996-02-01

    This report provides an Executive Summary of the various elements of the Materials Sciences Program which is funded by the Division of Materials Sciences, Office of Basic Energy Sciences, U.S. Department of Energy at Sandia National Laboratories, New Mexico.

  13. Materials sciences programs, fiscal year 1994

    International Nuclear Information System (INIS)

    1995-04-01

    The Division of Materials Sciences is located within the DOE in the Office of Basic Energy Sciences. The Division of Materials Sciences is responsible for basic research and research facilities in strategic materials science topics of critical importance to the mission of the Department and its Strategic Plan. Materials Science is an enabling technology. The performance parameters, economics, environmental acceptability and safety of all energy generation, conversion, transmission and conservation technologies are limited by the properties and behavior of materials. The Materials Sciences programs develop scientific understanding of the synergistic relationship amongst the synthesis, processing, structure, properties, behavior, performance and other characteristics of materials. Emphasis is placed on the development of the capability to discover technologically, economically, and environmentally desirable new materials and processes, and the instruments and national user facilities necessary for achieving such progress. Materials Sciences sub-fields include physical metallurgy, ceramics, polymers, solid state and condensed matter physics, materials chemistry, surface science and related disciplines where the emphasis is on the science of materials. This report includes program descriptions for 458 research programs including 216 at 14 DOE National Laboratories, 242 research grants (233 for universities), and 9 Small Business Innovation Research (SBIR) Grants. The report is divided into eight sections. Section A contains all Laboratory projects, Section B has all contract research projects, Section C has projects funded under the SBIR Program, Section D describes the Center of Excellence for the Synthesis and Processing of Advanced Materials and E has information on major user facilities. F contains descriptions of other user facilities; G, a summary of funding levels; and H, indices characterizing research projects

  14. Materials sciences programs: Fiscal year 1994

    Science.gov (United States)

    1995-04-01

    The Division of Materials Sciences is located within the DOE in the Office of Basic Energy Sciences. The Division of Materials Sciences is responsible for basic research and research facilities in strategic materials science topics of critical importance to the mission of the Department and its Strategic Plan. Materials Science is an enabling technology. The performance parameters, economics, environmental acceptability and safety of all energy generation, conversion, transmission and conservation technologies are limited by the properties and behavior of materials. The Materials Sciences programs develop scientific understanding of the synergistic relationship amongst the synthesis, processing, structure, properties, behavior, performance and other characteristics of materials. Emphasis is placed on the development of the capability to discover technologically, economically, and environmentally desirable new materials and processes, and the instruments and national user facilities necessary for achieving such progress. Materials Sciences sub-fields include physical metallurgy, ceramics, polymers, solid state and condensed matter physics, materials chemistry, surface science and related disciplines where the emphasis is on the science of materials. This report includes program descriptions for 458 research programs including 216 at 14 DOE National Laboratories, 242 research grants (233 for universities), and 9 Small Business Innovation Research (SBIR) Grants. The report is divided into eight sections. Section A contains all Laboratory projects, Section B has all contract research projects, Section C has projects funded under the SBIR Program, Section D describes the Center of Excellence for the Synthesis and Processing of Advanced Materials and E has information on major user facilities. F contains descriptions of other user facilities; G, a summary of funding levels; and H, indices characterizing research projects.

  15. Materials sciences programs, fiscal year 1994

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-04-01

    The Division of Materials Sciences is located within the DOE in the Office of Basic Energy Sciences. The Division of Materials Sciences is responsible for basic research and research facilities in strategic materials science topics of critical importance to the mission of the Department and its Strategic Plan. Materials Science is an enabling technology. The performance parameters, economics, environmental acceptability and safety of all energy generation, conversion, transmission and conservation technologies are limited by the properties and behavior of materials. The Materials Sciences programs develop scientific understanding of the synergistic relationship amongst the synthesis, processing, structure, properties, behavior, performance and other characteristics of materials. Emphasis is placed on the development of the capability to discover technologically, economically, and environmentally desirable new materials and processes, and the instruments and national user facilities necessary for achieving such progress. Materials Sciences sub-fields include physical metallurgy, ceramics, polymers, solid state and condensed matter physics, materials chemistry, surface science and related disciplines where the emphasis is on the science of materials. This report includes program descriptions for 458 research programs including 216 at 14 DOE National Laboratories, 242 research grants (233 for universities), and 9 Small Business Innovation Research (SBIR) Grants. The report is divided into eight sections. Section A contains all Laboratory projects, Section B has all contract research projects, Section C has projects funded under the SBIR Program, Section D describes the Center of Excellence for the Synthesis and Processing of Advanced Materials and E has information on major user facilities. F contains descriptions of other user facilities; G, a summary of funding levels; and H, indices characterizing research projects.

  16. The material co-construction of hard science fiction and physics

    Science.gov (United States)

    Hasse, Cathrine

    2015-12-01

    This article explores the relationship between hard science fiction and physics and a gendered culture of science. Empirical studies indicate that science fiction references might spur some students' interest in physics and help develop this interest throughout school, into a university education and even further later inspire the practice of doing science. There are many kinds of fiction within the science fiction genre. In the presented empirical exploration physics students seem particularly fond of what is called `hard science fiction': a particular type of science fiction dealing with technological developments (Hartwell and Cramer in The hard SF renaissance, Orb/TOR, New York, 2002). Especially hard science fiction as a motivating fantasy may, however, also come with a gender bias. The locally materialized techno-fantasies spurring dreams of the terraforming of planets like Mars and travels in time and space may not be shared by all physics students. Especially female students express a need for other concerns in science. The entanglement of physics with hard science fiction may thus help develop some students' interest in learning school physics and help create an interest for studying physics at university level. But research indicates that especially female students are not captured by the hard techno-fantasies to the same extent as some of their male colleagues. Other visions (e.g. inspired by soft science fiction) are not materialized as a resource in the local educational culture. It calls for an argument of how teaching science is also teaching cultural values, ethics and concerns, which may be gendered. Teaching materials, like the use of hard science fiction in education, may not just be (yet another) gender bias in science education but also carrier of particular visions for scientific endeavours.

  17. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Screen printing; ferroelectricity; piezoelectricity; nonlinear property. .... Luoyang Institute of Science and Technology, Luoyang 471023, China; Functional Materials Research Laboratory, Tongji University, Shanghai 200092, China; Department of Physics and Materials Science, City University of Hong Kong, Kowloon Tong, ...

  18. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. U S Sajeev. Articles written in Bulletin of Materials Science. Volume 27 Issue 2 April 2004 pp 155-161 Magnetic Materials. Magnetic field induced assembling of nanoparticles in ferrofluidic liquid thin films based on NiFe1-Fe2O4 · V S Abraham S Swapna Nair S Rajesh U S ...

  19. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. S R Dhage. Articles written in Bulletin of Materials Science. Volume 27 Issue 1 February 2004 pp 43-45 Dielectric Materials. Nonlinear – characteristics study of doped SnO2 · S R Dhage V Ravi S K Date · More Details Abstract Fulltext PDF. When tin oxide is doped with ...

  20. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. D S Prasad. Articles written in Bulletin of Materials Science. Volume 25 Issue 2 April 2002 pp 79-83 Materials Synthesis. Preparation of high purity tellurium by zone refining · N R Munirathnam D S Prasad Ch Sudheer A J Singh T L Prakash · More Details Abstract Fulltext PDF.

  1. IAEA AQCS catalogue for reference materials and intercomparison exercises 1998/1999

    International Nuclear Information System (INIS)

    1999-01-01

    Fore more than thirty years the International Atomic Energy Agency (IAEA), through its Analytical Quality Control Services (AQCS) programme, has been assisting Member States' laboratories to maintain and improve the reliability of their analyses by organizing intercomparison exercises and by preparing and distributing biological, environmental and marine reference materials. The catalogue consists principally of two parts: The list of all available IAEA reference materials grouped into five categories: reference materials for radionuclides; reference materials for trace, minor and major elements, including oxides; reference materials for stable isotopes; reference materials for organic contaminants and methyl mercury containing materials. Lists of all available IAEA reference materials sorted by analytes. In addition information on recommended half-life data and suppliers of radioactive sources is provided. Planned intercomparisons are advertised and request forms for participation in intercomparisons are included. Forms for ordering reference materials, quality control spectra for gamma-spectrometry on diskettes and AQCS related publications are also provided

  2. Berkeley Lab - Materials Sciences Division

    Science.gov (United States)

    , which aims to showcase some of the latest material science and metallurgy content published in the Synthesis Condensed Matter and Materials Physics Scattering and Instrumentation Science Centers Center for intrinsically consist of atomic rotation Scientists Discover Material Ideal for Smart Photovoltaic Windows A

  3. Materials Sciences Division 1990 annual report

    International Nuclear Information System (INIS)

    1990-01-01

    This report is the Materials Sciences Division's annual report. It contains abstracts describing materials research at the National Center for Electron Microscopy, and for research groups in metallurgy, solid-state physics, materials chemistry, electrochemical energy storage, electronic materials, surface science and catalysis, ceramic science, high tc superconductivity, polymers, composites, and high performance metals

  4. Analytical quality control service programme, intercomparison runs, certified reference materials, reference materials 1987-88

    International Nuclear Information System (INIS)

    1986-12-01

    The purpose of the Analytical Quality Control Services (AQCS) programme provided by the IAEA, is to assist laboratories engaged in the analysis of nuclear, environmental, biological, and materials of marine origin for radionuclide, major, minor and trace elements, as well as stable isotopes using atomic and nuclear analytical techniques, to check the quality of their work. The tables give details of the intercomparison samples and reference materials distributed by the IAEA in the period 1987 to 1988. 2 tabs

  5. Materials Sciences Division 1990 annual report

    Energy Technology Data Exchange (ETDEWEB)

    1990-12-31

    This report is the Materials Sciences Division`s annual report. It contains abstracts describing materials research at the National Center for Electron Microscopy, and for research groups in metallurgy, solid-state physics, materials chemistry, electrochemical energy storage, electronic materials, surface science and catalysis, ceramic science, high tc superconductivity, polymers, composites, and high performance metals.

  6. Materials Sciences Division 1990 annual report

    Energy Technology Data Exchange (ETDEWEB)

    1990-01-01

    This report is the Materials Sciences Division's annual report. It contains abstracts describing materials research at the National Center for Electron Microscopy, and for research groups in metallurgy, solid-state physics, materials chemistry, electrochemical energy storage, electronic materials, surface science and catalysis, ceramic science, high tc superconductivity, polymers, composites, and high performance metals.

  7. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. G P Nayaka. Articles written in Bulletin of Materials Science. Volume 37 Issue 3 May 2014 pp 705-711. Structural, electrical and electrochemical behaviours of LiNi0.4M0.1Mn1.5O4 ( = Al, Bi) as cathode material for Li-ion batteries · G P Nayaka J Manjanna K C Anjaneya P ...

  8. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. K C Anjaneya. Articles written in Bulletin of Materials Science. Volume 37 Issue 3 May 2014 pp 705-711. Structural, electrical and electrochemical behaviours of LiNi0.4M0.1Mn1.5O4 ( = Al, Bi) as cathode material for Li-ion batteries · G P Nayaka J Manjanna K C Anjaneya P ...

  9. Bulletin of Materials Science | Indian Academy of Sciences

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    Home; Journals; Bulletin of Materials Science. A K Bajpai. Articles written in Bulletin of Materials Science. Volume 28 Issue 6 October 2005 pp 529-534 Review—Polymers. Morphological, thermal and annealed microhardness characterization of gelatin based interpenetrating networks of polyacrylonitrile: A hard biopolymer.

  10. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    AGH-University of Science and Technology, Faculty of Materials Science and Ceramics, Department of Biomaterials, Al. Mickiewicza 30, 30-059 Krakow, Poland; The Pennsylvania State University, Department of Physics and Center for 2-Dimensional and Layered Materials, 104 Davey Laboratory, University Park, PA ...

  11. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    School of Mechanical and Automotive Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, P.R. China; Anhui Provincial Laboratory of High Performance Nonferrous Metals Material, Wuhu, Anhui 241000, P.R. China; Department of Materials Science and Engineering, University of Science and Technology of ...

  12. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. REGINA C SO. Articles written in Bulletin of Materials Science. Volume 40 Issue 6 October 2017 pp 1179-1187. Preparation, characterization of chitosan/bamboo charcoal/poly(methacrylate) composite beads · DOROTHY CAMINOS-PERUELO WEI-CHIEH WANG ...

  13. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. S Prasannakumar. Articles written in Bulletin of Materials Science. Volume 24 Issue 5 October 2001 pp 535-538 Polymers. Interpenetrating polymer networks based on polyol modified castor oil polyurethane and poly(2-hydroxyethylmethacrylate): Synthesis, chemical, ...

  14. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. SURESH KUMAR. Articles written in Bulletin of Materials Science. Volume 35 Issue 5 October 2012 pp 787-794. Electrical transport and EPR investigations: A comparative study for d.c. conduction mechanism in monovalent and multivalent ions doped polyaniline.

  15. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Neelotpal Sen Sarma. Articles written in Bulletin of Materials Science. Volume 37 Issue 7 December 2014 pp 1613-1624. Enhancement of proton conductivity of sulfonated polystyrene membrane prepared by plasma polymerization process · Bhabesh Kumar Nath Aziz Khan ...

  16. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Nitai Debnath. Articles written in Bulletin of Materials Science. Volume 37 Issue 2 April 2014 pp 199-206. Ciprofloxacin conjugated zinc oxide nanoparticle: A camouflage towards multidrug resistant bacteria · Prasun Patra Shouvik Mitra Nitai Debnath Panchanan Pramanik ...

  17. Bulletin of Materials Science | Indian Academy of Sciences

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    Home; Journals; Bulletin of Materials Science. Arunkumar Lagashetty. Articles written in Bulletin of Materials Science. Volume 27 Issue 6 December 2004 pp 491-495 Nanomaterials. Adsorption study of Pb ions on nanosized SnO2, synthesized by self-propagating combustion reaction · Arunkumar Lagashetty A ...

  18. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. MURAT UYGUN. Articles written in Bulletin of Materials Science. Volume 39 Issue 2 April 2016 pp 353-359. Hydrophobic nano-carrier for lysozyme adsorption · CANAN ALTUNBAS FULDEN ZEYNEP URAL MURAT UYGUN NESIBE AVCIBASI UGUR AVCIBASI DENIZ AKTAS ...

  19. Bulletin of Materials Science | Indian Academy of Sciences

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    Home; Journals; Bulletin of Materials Science. Sandeep Arya. Articles written in Bulletin of Materials Science. Volume 36 Issue 4 August 2013 pp 535-539. Synthesis of copper telluride nanowires using template-based electrodeposition method as chemical sensor · Sandeep Arya Saleem Khan Suresh Kumar Rajnikant ...

  20. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 31; Issue 3. Formation of InN nanoparticle and nanorod structures by nitrogen plasma annealing method ... Department of Physics, Indian Institute of Technology Delhi, New Delhi 110 016, India; Material Science Division, Indira Gandhi Centre for Atomic Research, ...

  1. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Dinesh Kumar. Articles written in Bulletin of Materials Science. Volume 25 Issue 6 November 2002 pp 549-551. Semiconductor applications of plasma immersion ion implantation technology · Mukesh Kumar Rajkumar Dinesh Kumar P J George · More Details Abstract Fulltext ...

  2. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. T Mirza. Articles written in Bulletin of Materials Science. Volume 23 Issue 5 October 2000 pp 377-382 Glass Ceramics. Preparation and characterization of magnesium–aluminium–silicate glass ceramics · Madhumita Goswami T Mirza A Sarkar Shobha Manikandan Sangeeta ...

  3. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 31; Issue 1. Pressure induced graft-co-polymerization of acrylonitrile onto Saccharum cilliare fibre and ... Author Affiliations. A S Singha1 Anjali Shama1 Vijay Kumar Thakur1. Material Science Laboratory, National Institute of Technology, Hamirpur 177 005, India ...

  4. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. AGNIESZKA SOBCZAK-KUPIEC. Articles written in Bulletin of Materials Science. Volume 36 Issue 4 August 2013 pp 755-764. Effect of calcination conditions of pork bone sludge on behaviour of hydroxyapatite in simulated body fluid · Agnieszka Sobczak-Kupiec Zbigniew ...

  5. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Thotapalli P Sastry. Articles written in Bulletin of Materials Science. Volume 34 Issue 1 February 2011 pp 177-181. Preparation and characterization of a novel bone graft composite containing bone ash and egg shell powder · Gunasekaran Krithiga Thotapalli P Sastry.

  6. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. B V Radhakrishna Bhat. Articles written in Bulletin of Materials Science. Volume 23 Issue 2 April 2000 pp 109-117 Composites. Optimization of processing parameters for making alumina–partially stabilized zirconia laminated composites · S Deb B V Radhakrishna Bhat.

  7. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. SUDHANSHU CHOUDHARY. Articles written in Bulletin of Materials Science. Volume 35 Issue 5 October 2012 pp 713-718. Theoretical study on effect of radial and axial deformation on electron transport properties in a semiconducting Si–C nanotube · Sudhanshu Choudhary ...

  8. Reinventing Material Science - Continuum Magazine | NREL

    Science.gov (United States)

    by Sandia National Laboratories Reinventing Material Science It's not often that scientists set out pursuing in the field of material science. The vision of the center is to revolutionize the discovery of new material science. "In the old days, if you wanted somebody to calculate the properties of a

  9. Physical foundations of materials science

    CERN Document Server

    Gottstein, Günter

    2004-01-01

    In this vivid and comprehensible introduction to materials science, the author expands the modern concepts of metal physics to formulate basic theory applicable to other engineering materials, such as ceramics and polymers. Written for engineering students and working engineers with little previous knowledge of solid-state physics, this textbook enables the reader to study more specialized and fundamental literature of materials science. Dozens of illustrative photographs, many of them Transmission Electron Microscopy images, plus line drawings, aid developing a firm appreciation of this complex topic. Hard-to-grasp terms such as "textures" are lucidly explained - not only the phenomenon itself, but also its consequences for the material properties. This excellent book makes materials science more transparent.

  10. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Shweta Agrawal. Articles written in Bulletin of Materials Science. Volume 32 Issue 6 December 2009 pp 569-573 Thin Films and Nanomatter. Swift heavy ion irradiation effect on Cu-doped CdS nanocrystals embedded in PMMA · Shweta Agrawal Subodh Srivastava Sumit ...

  11. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Manoj Komath. Articles written in Bulletin of Materials Science. Volume 23 Issue 2 April 2000 pp 135-140 Biomaterials. On the development of an apatitic calcium phosphate bone cement · Manoj Komath H K Varma R Sivakumar · More Details Abstract Fulltext PDF.

  12. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Md HABIB. Articles written in Bulletin of Materials Science. Volume 41 Issue 2 April 2018 pp 56. Tuning the BODIPY core for its potential use in DSSC: a quantum chemical approach · NARENDRA NATH GHOSH Md HABIB ANUP PRAMANIK PRANAB SARKAR SOUGATA PAL.

  13. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. TRAN NGOC TUYEN. Articles written in Bulletin of Materials Science. Volume 41 Issue 1 February 2018 pp 6. Lead ions removal from aqueous solution using modified carbon nanotubes · NGUYEN DUC VU QUYEN TRAN NGOC TUYEN DINH QUANG KHIEU HO VAN MINH ...

  14. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. R Murugesan. Articles written in Bulletin of Materials Science. Volume 25 Issue 7 December 2002 pp 613-618 Polymers. Metal oxalate complexes as novel inorganic dopants: Studies on their effect on conducting polyaniline · R Murugesan E Subramanian · More Details ...

  15. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. S Gopalakrishnan. Articles written in Bulletin of Materials Science. Volume 27 Issue 3 June 2004 pp 235-241 Polymers. Synthesis, mechanical, thermal and chemical properties of polyurethanes based on cardanol · C V Mythili A Malar Retna S Gopalakrishnan · More Details ...

  16. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. E Subramanian. Articles written in Bulletin of Materials Science. Volume 25 Issue 7 December 2002 pp 613-618 Polymers. Metal oxalate complexes as novel inorganic dopants: Studies on their effect on conducting polyaniline · R Murugesan E Subramanian · More Details ...

  17. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. RITWIK SARKAR. Articles written in Bulletin of Materials Science. Volume 33 Issue 3 June 2010 pp 293-298 Alloys and Steels. Utilization of steel melting electric arc furnace slag for development of vitreous ceramic tiles · Ritwik Sarkar Nar Singh Swapan Kumar Das.

  18. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. K Chandra. Articles written in Bulletin of Materials Science. Volume 30 Issue 4 August 2007 pp 309-314 Biomaterials. Characteristics of porous zirconia coated with hydroxyapatite as human bones · V V Narulkar S Prakash K Chandra · More Details Abstract Fulltext PDF.

  19. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. P P PRADYUMNAN. Articles written in Bulletin of Materials Science. Volume 40 Issue 5 September 2017 pp 1007-1011. Structural and magnetic studies on copper succinate dihydrate single crystals · M P BINITHA P P PRADYUMNAN · More Details Abstract Fulltext PDF.

  20. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Zhanshuang Li. Articles written in Bulletin of Materials Science. Volume 31 Issue 2 April 2008 pp 193-195 Nanomaterials. Mesoscale organization of CuO nanoslices: Formation of sphere · Jun Wang Shunxiao Zhang Zhanshuang Li Jia You Piaoping Yang Xiaoyan Jing Milin ...

  1. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Shunxiao Zhang. Articles written in Bulletin of Materials Science. Volume 31 Issue 2 April 2008 pp 193-195 Nanomaterials. Mesoscale organization of CuO nanoslices: Formation of sphere · Jun Wang Shunxiao Zhang Zhanshuang Li Jia You Piaoping Yang Xiaoyan Jing Milin ...

  2. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. SABRI BAYLAV. Articles written in Bulletin of Materials Science. Volume 41 Issue 2 April 2018 pp 49. Synthesis and characterization of metal ion-imprinted polymers · YASEMIN ISIKVER SABRI BAYLAV · More Details Abstract Fulltext PDF. In this study, ion-imprinted polymeric ...

  3. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. XIAOWEN ZHANG. Articles written in Bulletin of Materials Science. Volume 37 Issue 4 June 2014 pp 895-902. Structural evolution, electrical and optical properties of AZO films deposited by sputtering ultra-high density target · Jiwen Xu Zupei Yang Hua Wang Xiaowen Zhang.

  4. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. LIFANG ZHANG. Articles written in Bulletin of Materials Science. Volume 38 Issue 3 June 2015 pp 811-816. Fabrication and characterization of PDLLA/pyrite composite bone scaffold for osteoblast culture · Lifang Zhang Yanyan Zheng Chengdong Xiong · More Details Abstract ...

  5. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Austrian Centre of Competence for Tribology, Viktor Kaplan-Straße 2, A 2700 Wiener Neustadt, Austria; Institute of Industrial Electronics and Material Science, Vienna University of Technology, A 1040 Vienna, Austria; Institute of Material Science and Testing, Vienna University of Technology, A 1040 Vienna, Austria; Institute ...

  6. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Dong Zhang. Articles written in Bulletin of Materials Science. Volume 34 Issue 1 February 2011 pp 25-28. Aqueous colloids of graphene oxide nanosheets by exfoliation of graphite oxide without ultrasonication · Tian-You Zhang Dong Zhang · More Details Abstract Fulltext PDF.

  7. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Raji George. Articles written in Bulletin of Materials Science. Volume 30 Issue 2 April 2007 pp 183-185 Nanomaterials. Synthesis, characterization and gas sensitivity of MoO3 nanoparticles · Arnab Ganguly Raji George · More Details Abstract Fulltext PDF. Nanoparticles of ...

  8. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. V Vinmathi. Articles written in Bulletin of Materials Science. Volume 38 Issue 3 June 2015 pp 625-628. A green and facile approach for the synthesis of silver nanoparticles using aqueous extract of Ailanthus excelsa leaves, evaluation of its antibacterial and anticancer efficacy.

  9. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Uma Maheswar Rao. Articles written in Bulletin of Materials Science. Volume 24 Issue 6 December 2001 pp 587-593 Surface Studies. Investigation of surface modifications in ethylene propylene diene monomer (EPDM) rubber due to tracking under a.c. and d.c. voltages.

  10. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. MONICA KATIYAR. Articles written in Bulletin of Materials Science. Volume 36 Issue 4 August 2013 pp 653-660. Processing and performance of organic insulators as a gate layer in organic thin film transistors fabricated on polyethylene terephthalate substrate · Saumen Mandal ...

  11. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. S Muthulakshmi. Articles written in Bulletin of Materials Science. Volume 37 Issue 7 December 2014 pp 1575-1582. Effect of temperature on the AC impedance of protein and carbohydrate biopolymers · S Muthulakshmi S Iyyapushpam D Pathinettam Padiyan · More Details ...

  12. Determination of carbon-14 in environmental level, solid reference materials

    Energy Technology Data Exchange (ETDEWEB)

    Blowers, Paul, E-mail: paul.blowers@cefas.co.uk [Cefas Lowestoft Laboratory, Pakefield Road, Lowestoft, Suffolk, NR33 0HT (United Kingdom); Caborn, Jane, E-mail: jane.a.caborn@nnl.co.uk [NNL, Springfields, Salwick, Preston, Lancashire, PR4 0XJ (United Kingdom); Dell, Tony [Veterinary Laboratories Agency, New Haw, Addlestone, Surrey, KT15 3NB (United Kingdom); Gingell, Terry [DSTL, Radiation Protection Services, Crescent Road, Alverstoke, Gosport, Hants, PO12 2DL (United Kingdom); Harms, Arvic [National Physical Laboratory, Hampton Road, Teddington, Middlesex, TW11 0LW (United Kingdom); Long, Stephanie [Radiological Protection Institute of Ireland, 3 Clonskeagh Square, Clonskeagh Road, Dublin 14, Ireland (United Kingdom); Sleep, Darren [Centre for Ecology and Hydrology, Lancaster Environment Centre, Library Avenue, Bailrigg, Lancaster, LA1 4AP (United Kingdom); Stewart, Charlie [UKAEA (Waste Management Group), Chemical Support Services, D1310/14, Dounreay, Thurso, Caithness, KW14 7TZ (United Kingdom); Walker, Jill [Radiocarbon Dating, The Old Stables, East Lockinge, Wantage, Oxon OX12 8QY (United Kingdom); Warwick, Phil E. [GAU-Radioanalytical, National Oceanography Centre Southampton, European Way, Southampton, SO14 3ZH (United Kingdom)

    2011-10-15

    An intercomparison exercise to determine the {sup 14}C activity concentrations in a range of solid, environmental level materials was conducted between laboratories in the UK. IAEA reference materials, C2, C6 and C7, and an in-house laboratory QA material were dispatched in 2006 to ten laboratories comprising of members of the Analyst Informal Working Group (AIWG) and one other invited party. The laboratories performed the determinations using a number of techniques, and using the results each one was evaluated in terms of levels of precision, sensitivity and limits of detection. The results of the study show that all techniques are capable of successfully analysing {sup 14}C in environmental level materials, however, a shortage of certified environmental reference materials exists. The suitability of the IAEA reference materials and other material for use as reference materials was also assessed.

  13. Determination of carbon-14 in environmental level, solid reference materials

    International Nuclear Information System (INIS)

    Blowers, Paul; Caborn, Jane; Dell, Tony; Gingell, Terry; Harms, Arvic; Long, Stephanie; Sleep, Darren; Stewart, Charlie; Walker, Jill; Warwick, Phil E.

    2011-01-01

    An intercomparison exercise to determine the 14 C activity concentrations in a range of solid, environmental level materials was conducted between laboratories in the UK. IAEA reference materials, C2, C6 and C7, and an in-house laboratory QA material were dispatched in 2006 to ten laboratories comprising of members of the Analyst Informal Working Group (AIWG) and one other invited party. The laboratories performed the determinations using a number of techniques, and using the results each one was evaluated in terms of levels of precision, sensitivity and limits of detection. The results of the study show that all techniques are capable of successfully analysing 14 C in environmental level materials, however, a shortage of certified environmental reference materials exists. The suitability of the IAEA reference materials and other material for use as reference materials was also assessed.

  14. Use of gamma spectrometry for analysis of three reference materials

    International Nuclear Information System (INIS)

    Kinova, L.

    2004-01-01

    All reference materials (Reference material A: weight = 49.23 g; Reference material B: weight = 36.08 g; Reference material C: weight = 26.18 g) were packed in 50 cm 3 polypropylene vials, sealed and measured consecutively three times at intervals of the average of 25 days. Low background gamma spectrometry system: HPGe detector with high energy resolution (FWHM for 1332 KeV of Co-60 is 1.9 KeV, Relative counting efficiency for the same energy is 21 %) was used. Results: All materials are of low activity and must be measured for a long time.The highest specific activity of a man-made radionuclides Cs-137 and Am-241 is in the material A. An instrumentally measurable activity of Pb-210 also can be observed in this material. Medium values are in the material B. The reference material C according to the specific activity seems to be a low natural radioactivity material with highest activity of natural nuclides Th-232 and Pa-234 (progeny of U-238). Conclusions: Gamma spectrometry is an useful tool for initial measurement of materials with low radioactivity. Such measurements give an orientation for the nuclides content and approximate activity in the material for the following radiochemical determinations

  15. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Wein-Duo Yang. Articles written in Bulletin of Materials Science. Volume 36 Issue 5 October 2013 pp 779-788. Study on photocatalysis of TiO2 nanotubes prepared by methanol-thermal synthesis at low temperature · Chau Thanh Nam Wein-Duo Yang Le Minh Duc.

  16. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. R Bajpai. Articles written in Bulletin of Materials Science. Volume 25 Issue 1 February 2002 pp 21-23 Mechanical Properties. Surface modification on PMMA : PVDF polyblend: hardening under chemical environment · R Bajpai V Mishra Pragyesh Agrawal S C Datt · More Details ...

  17. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Murali Sastry. Articles written in Bulletin of Materials Science. Volume 23 Issue 3 June 2000 pp 159-163 Nanomaterials. A note on the use of ellipsometry for studying the kinetics of formation of self-assembled monolayers · Murali Sastry · More Details Abstract Fulltext PDF.

  18. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Ch Sudheer. Articles written in Bulletin of Materials Science. Volume 25 Issue 6 November 2002 pp 545-547. Tellurium purification: various techniques and limitations · D S Prasad Ch Sudheer N R Munirathnam T L Prakash · More Details Abstract Fulltext PDF. Limitations and ...

  19. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Anjum Qureshi. Articles written in Bulletin of Materials Science. Volume 29 Issue 6 November 2006 pp 605-609. Analysis of organometallics dispersed polymer composite irradiated with oxygen ions · N L Singh Anjum Qureshi A K Rakshit D K Avasthi · More Details Abstract ...

  20. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. KADARKARAI MURUGAN. Articles written in Bulletin of Materials Science. Volume 40 Issue 7 December 2017 pp 1455-1462. A sensitive optical sensor based on DNA-labelled Si@SiO 2 core–shell nanoparticle for the detection of Hg 2 + ions in environmental water samples.

  1. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. YONG J IANG. Articles written in Bulletin of Materials Science. Volume 40 Issue 6 October 2017 pp 1255-1261. Molecular dynamics study on the relaxation properties of bilayered graphene with defects · WEI ZHANG JIU-REN YIN PING ZHANG YAN-HUAI DING YONG J IANG.

  2. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. KANNAIYAN DINAKARAN. Articles written in Bulletin of Materials Science. Volume 40 Issue 7 December 2017 pp 1455-1462. A sensitive optical sensor based on DNA-labelled Si@SiO 2 core–shell nanoparticle for the detection of Hg 2 + ions in environmental water samples.

  3. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Jadu Samuel. Articles written in Bulletin of Materials Science. Volume 36 Issue 6 November 2013 pp 981-987. Green chemical incorporation of sulphate into polyoxoanions of molybdenum to nano level · Jadu Samuel S Hari Prasad M K Sreedhar · More Details Abstract Fulltext ...

  4. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. V Ganesan. Articles written in Bulletin of Materials Science. Volume 28 Issue 6 October 2005 pp 609-615 Thin Films. Structural morphology of amorphous conducting carbon film · P N Vishwakarma V Prasad S V Subramanyam V Ganesan · More Details Abstract Fulltext PDF.

  5. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Amarnath. Articles written in Bulletin of Materials Science. Volume 26 Issue 4 June 2003 pp 435-439 Biomaterials. Effect of heat treatments on the hydrogen embrittlement susceptibility of API X-65 grade line-pipe steel · G Ananta Nagu Amarnath T K G Namboodhiri.

  6. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Sejal Shah. Articles written in Bulletin of Materials Science. Volume 30 Issue 5 October 2007 pp 477-480 Polymers. Study of microhardness and electrical properties of proton irradiated polyethersulfone (PES) · Nilam Shah Dolly Singh Sejal Shah Anjum Qureshi N L Singh K P ...

  7. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. D K Kharat. Articles written in Bulletin of Materials Science. Volume 28 Issue 5 August 2005 pp 453-455 Ceramics and Glasses. Characterization and microstructure of porous lead zirconate titanate ceramics · B Praveenkumar H H Kumar D K Kharat · More Details Abstract ...

  8. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. H P Sachin. Articles written in Bulletin of Materials Science. Volume 30 Issue 1 February 2007 pp 57-63 Electrochemistry. Polynitroaniline as brightener for zinc–nickel alloy plating from non-cyanide sulphate bath · H P Sachin Ganesha Achary Y Arthoba Naik T V Venkatesha.

  9. Nuclear science references coding manual

    International Nuclear Information System (INIS)

    Ramavataram, S.; Dunford, C.L.

    1996-08-01

    This manual is intended as a guide to Nuclear Science References (NSR) compilers. The basic conventions followed at the National Nuclear Data Center (NNDC), which are compatible with the maintenance and updating of and retrieval from the Nuclear Science References (NSR) file, are outlined. In Section H, the structure of the NSR file such as the valid record identifiers, record contents, text fields as well as the major TOPICS for which are prepared are enumerated. Relevant comments regarding a new entry into the NSR file, assignment of , generation of and linkage characteristics are also given in Section II. In Section III, a brief definition of the Keyword abstract is given followed by specific examples; for each TOPIC, the criteria for inclusion of an article as an entry into the NSR file as well as coding procedures are described. Authors preparing Keyword abstracts either to be published in a Journal (e.g., Nucl. Phys. A) or to be sent directly to NNDC (e.g., Phys. Rev. C) should follow the illustrations in Section III. The scope of the literature covered at the NNDC, the categorization into Primary and Secondary sources, etc., is discussed in Section IV. Useful information regarding permitted character sets, recommended abbreviations, etc., is given under Section V as Appendices

  10. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Rajeev Gupta. Articles written in Bulletin of Materials Science. Volume 34 Issue 3 June 2011 pp 447-454. An investigation in InGaO3(ZnO)m pellets as cause of variability in thin film transistor characteristics · Sonachand Adhikari Rajeev Gupta Ashish Garg Deepak.

  11. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. N J KARALE. Articles written in Bulletin of Materials Science. Volume 40 Issue 7 December 2017 pp 1335-1345. Chemical synthesis and characterization of nano-sized rare-earth ruthenium pyrochlore compounds Ln 2 Ru 2 O 7 (Ln = rare earth) · R A PAWAR A K NIKUMBH ...

  12. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. K Mondal. Articles written in Bulletin of Materials Science. Volume 36 Issue 1 February 2013 pp 51-58. Electrochemical passivation behaviour of nanocrystalline Fe80Si20 coating in borate buffer solution · G Gupta A P Moon K Mondal · More Details Abstract Fulltext PDF.

  13. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Jiuxing Zhang. Articles written in Bulletin of Materials Science. Volume 34 Issue 4 July 2011 pp 825-828. Magnetocaloric effect of Gd5Si2Ge2 alloys in low magnetic field · Hong Zeng Chunjiang Kuang Jiuxing Zhang Ming Yue · More Details Abstract Fulltext PDF.

  14. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. B P Singh. Articles written in Bulletin of Materials Science. Volume 23 Issue 1 February 2000 pp 11-16 Molecular Magnets. Synthesis and magnetic properties of one-dimensional metal oxalate networks as molecular-based magnets · B P Singh B Singh · More Details Abstract ...

  15. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Manoj Kumar. Articles written in Bulletin of Materials Science. Volume 26 Issue 3 April 2003 pp 335-341 Glasses. Optical absorption and fluorescent behaviour of titanium ions in silicate glasses · Manoj Kumar Aman Uniyal A P S Chauhan S P Singh · More Details Abstract ...

  16. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. N K PANDEY. Articles written in Bulletin of Materials Science. Volume 40 Issue 2 April 2017 pp 253-262. Electrical and optical properties of ZnO–WO 3 nanocomposite and its application as a solid-state humidity sensor · VANDNA SHAKYA N K PANDEY SUNEET KUMAR ...

  17. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Y Arthoba Naik. Articles written in Bulletin of Materials Science. Volume 28 Issue 5 August 2005 pp 495-501 Thin Films. A new condensation product for zinc plating from non-cyanide alkaline bath · Y Arthoba Naik T V Venkatesha · More Details Abstract Fulltext PDF.

  18. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. M Singh. Articles written in Bulletin of Materials Science. Volume 28 Issue 7 December 2005 pp .... Swift heavy ion irradiation effect on Cu-doped CdS nanocrystals embedded in PMMA · Shweta Agrawal Subodh Srivastava Sumit Kumar S S Sharma B Tripathi M Singh Y K Vijay.

  19. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. S Pal. Articles written in Bulletin of Materials Science. Volume 24 Issue 4 August 2001 pp 415-420 Biomaterials. A novel bio-inorganic bone implant containing deglued bone, chitosan and gelatin · G Saraswathy S Pal C Rose T P Sastry · More Details Abstract Fulltext PDF.

  20. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Annie John. Articles written in Bulletin of Materials Science. Volume 25 Issue 2 April 2002 pp 141-154 Biomaterials. Bone growth response with porous hydroxyapatite granules in a critical sized lapine tibial-defect model · Annie John S Abiraman H K Varma T V Kumari P R ...

  1. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. R AHMED. Articles written in Bulletin of Materials Science. Volume 40 Issue 6 October 2017 pp 1105-1110. Structural, elastic, optoelectronic and magnetic properties of CdHo 2 S 4 spinel: a first-principle study · I HATRAF O MERABIHA T SEDDIK H BALTACHE R KHENATA R ...

  2. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Rani Joseph. Articles written in Bulletin of Materials Science. Volume 26 Issue 3 April 2003 pp 343-348 Thin Films. Optimization of pH and direct imaging conditions of complexed methylene blue sensitized poly(vinyl chloride) films · M Ushamani N G Leenadeenja K Sreekumar ...

  3. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. A S Singha. Articles written in Bulletin of Materials Science. Volume 31 Issue 1 February 2008 pp 7-13 Polymers. Pressure induced graft-co-polymerization of acrylonitrile onto Saccharum cilliare fibre and evaluation of some properties of grafted fibre · A S Singha Anjali Shama ...

  4. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Ganesh Sanjeev. Articles written in Bulletin of Materials Science. Volume 33 Issue 3 June 2010 pp 191-196 Thin Films and Nanomatter. Dielectric properties of electron irradiated PbZrO3 thin films · Shetty Aparna V M Jali Ganesh Sanjeev Jayanta Parui S B Krupanidhi.

  5. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. M Hafez. Articles written in Bulletin of Materials Science. Volume 33 Issue 2 April 2010 pp 149-155 Polymers. Influence of granular strontium chloride as additives on some electrical and mechanical properties for pure polyvinyl alcohol · A B Elaydy M Hafez · More Details ...

  6. An outline of reference materials for analysis techniques in China

    International Nuclear Information System (INIS)

    Zhang Yuanxun; Qian Yine; Zhang Yongping; Tong Yongpeng

    1994-01-01

    This paper provides background information on the development in the field of reference materials in China. The major considerations in development of reference materials include homogeneity, stability, handling procedures and certification. Further it discusses the plans for development in the near future specific natural-matrix reference materials containing low levels of trace elements and having high degree of homogeneity

  7. An outline of reference materials for analysis techniques in China

    Energy Technology Data Exchange (ETDEWEB)

    Yuanxun, Zhang; Yine, Qian; Yongping, Zhang; Yongpeng, Tong [Shanghai Institute of Nuclear Research, Academia Sinica (China)

    1994-07-01

    This paper provides background information on the development in the field of reference materials in China. The major considerations in development of reference materials include homogeneity, stability, handling procedures and certification. Further it discusses the plans for development in the near future specific natural-matrix reference materials containing low levels of trace elements and having high degree of homogeneity.

  8. Crystal growth and computational materials science

    International Nuclear Information System (INIS)

    Jayakumar, S.; Ravindran, P.; Arun Kumar, R.; Sudarshan, C.

    2012-01-01

    The proceedings of the international conference on advanced materials discusses the advances being made in the area of single crystals, their preparation and device development from these crystals and details of the progress that is taking place in the computational field relating to materials science. Computational materials science makes use of advanced simulation tools and computer interfaces to develop a virtual platform which can provide a model for real-time experiments. This book includes selected papers in topics of crystal growth and computational materials science. We are confident that the new concepts and results presented will stimulate and enhance progress of research on crystal growth and computational materials science. Papers relevant to INIS are indexed separately

  9. Bulletin of Materials Science | News

    Indian Academy of Sciences (India)

    Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 200235, China; Department of Physics, Shanghai University, Shanghai 200444, China; State Key Laboratory of Crystal Material, Shandong ...

  10. Phase change materials science and applications

    CERN Document Server

    Raoux, Simone

    2009-01-01

    ""Phase Change Materials: Science and Applications"" provides a unique introduction of this rapidly developing field. This clearly written volume describes the material science of these fascinating materials from a theoretical and experimental perspective.

  11. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. S S Samal. Articles written in Bulletin of Materials Science. Volume 30 Issue 4 August 2007 pp 379-386 Polymers. Carbon nanotube reinforced polymer composites—A state of the art · S Bal S S Samal · More Details Abstract Fulltext PDF. Because of their high mechanical ...

  12. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Le Minh Duc. Articles written in Bulletin of Materials Science. Volume 36 Issue 5 October 2013 pp 779-788. Study on photocatalysis of TiO2 nanotubes prepared by methanol-thermal synthesis at low temperature · Chau Thanh Nam Wein-Duo Yang Le Minh Duc · More Details ...

  13. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. K Veera Brahmam. Articles written in Bulletin of Materials Science. Volume 28 Issue 5 August 2005 pp 411-414 Single Crystals. Crystal growth and reflectivity studies of Zn1–MnTe crystals · K Veera Brahmam D Raja Reddy B K Reddy · More Details Abstract Fulltext PDF.

  14. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Zhang Lei. Articles written in Bulletin of Materials Science. Volume 34 Issue 1 February 2011 pp 161-167. Characterization on strength and toughness of welded joint for Q550 steel · Jiang Qinglei Li Yajiang Wang Juan Zhang Lei · More Details Abstract Fulltext PDF. Q550 high ...

  15. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Amit Sinha. Articles written in Bulletin of Materials Science. Volume 24 Issue 6 December 2001 pp 653-657 Bioceramics. Development of calcium phosphate based bioceramics · Amit Sinha A Ingle K R Munim S N Vaidya B P Sharma A N Bhisey · More Details Abstract Fulltext ...

  16. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. HUA WANG. Articles written in Bulletin of Materials Science. Volume 36 Issue 3 June 2013 pp 389-393. Effects of Bi doping on dielectric and ferroelectric properties of PLBZT ferroelectric thin films synthesized by sol–gel processing · Hua Wang Li Liu Ji-Wen Xu Chang-Lai Yuan ...

  17. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. H N Sheikh. Articles written in Bulletin of Materials Science. Volume 34 Issue 4 July 2011 pp 843-851. Synthesis and characterization of composites of mixed oxides of iron and neodymium in polymer matrix of aniline–formaldehyde · Sajdha H N Sheikh B L Kalsotra N Kumar S ...

  18. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. K Rajendra Babu. Articles written in Bulletin of Materials Science. Volume 24 Issue 2 April 2001 pp 249-252 Crystal Growth. Thermal behaviour of strontium tartrate single crystals grown in gel · M H Rahimkutty K Rajendra Babu K Sreedharan Pillai M R Sudarsana Kumar C M K ...

  19. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. B Swarna Latha. Articles written in Bulletin of Materials Science. Volume 37 Issue 4 June 2014 pp 883-888. Structural, spectroscopic and electrochemical study of V substituted LiTi2(PO4)3 solid electrolyte for lithium-ion batteries · A Venkateswara Rao V Veeraiah A V Prasada ...

  20. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. V Bhat. Articles written in Bulletin of Materials Science. Volume 23 Issue 4 August 2000 pp 295-299 Alloys. A test for diffusional coherency strain hypothesis in the discontinuous precipitation in Mg–Al alloy · K T Kashyap C Ramachandra V Bhat B Chatterji · More Details Abstract ...

  1. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. M Mandal. Articles written in Bulletin of Materials Science. Volume 37 Issue 4 June 2014 pp 743-752. Porous copper template from partially spark plasma-sintered Cu–Zn aggregate via dezincification · M Mandal D Singh Gouthama B S Murty S Sangal K Mondal · More Details ...

  2. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. B L Kalsotra. Articles written in Bulletin of Materials Science. Volume 34 Issue 4 July 2011 pp 843-851. Synthesis and characterization of composites of mixed oxides of iron and neodymium in polymer matrix of aniline–formaldehyde · Sajdha H N Sheikh B L Kalsotra N Kumar S ...

  3. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. T Bhimasankaram. Articles written in Bulletin of Materials Science. Volume 23 Issue 6 December 2000 pp 483-489 Oxide Ceramics. Effect of HIPing on conductivity and impedance measurements of DyBi5Fe2Ti3O18 ceramics · N V Prasad G Prasad Mahendra Kumar S V ...

  4. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. S K Biswas. Articles written in Bulletin of Materials Science. Volume 33 Issue 3 June 2010 pp 251-255 Polymers. Effect of substrate roughness on growth of diamond by hot filament CVD · Awadesh K Mallik S R Binu L N Satapathy Chandrabhas Narayana Md Motin Seikh S A ...

  5. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. A K Sahu. Articles written in Bulletin of Materials Science. Volume 32 Issue 3 June 2009 pp 285-294. Nafion and modified-Nafion membranes for polymer electrolyte fuel cells: An overview · A K Sahu S Pitchumani P Sridhar A K Shukla · More Details Abstract Fulltext PDF.

  6. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Anhua Wu. Articles written in Bulletin of Materials Science. Volume 27 Issue 4 August 2004 pp 333-336 Crystal Growth. Bridgman growth and defects of Nd : Sr3Ga2Ge4O14 laser crystals · Jiaxuan Ding Anhua Wu Jiayue Xu · More Details Abstract Fulltext PDF.

  7. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. LING YANG. Articles written in Bulletin of Materials Science. Volume 36 Issue 3 June 2013 pp 389-393. Effects of Bi doping on dielectric and ferroelectric properties of PLBZT ferroelectric thin films synthesized by sol–gel processing · Hua Wang Li Liu Ji-Wen Xu Chang-Lai Yuan ...

  8. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. L C GUPTA. Articles written in Bulletin of Materials Science. Volume 40 Issue 6 October 2017 pp 1121-1125. High-pressure studies of superconductivity in BiO 0.75 F 0.25 BiS 2 · ZEBA HAQUE GOHIL S THAKUR GANESAN KALAI SELVAN SONACHALAM ARUMUGAM L C ...

  9. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. M Petrič. Articles written in Bulletin of Materials Science. Volume 34 Issue 1 February 2011 pp 113-119. Performance of waterborne acrylic surface coatings on wood impregnated with Cu-ethanolamine preservatives · M Humar M Pavlič D Žlindra M Tomažič M Petrič.

  10. Development and use of reference materials and quality control materials

    International Nuclear Information System (INIS)

    2003-04-01

    Current knowledge is summarized on correct use of commercially available certified reference materials (CRMs) and reference materials (RMs). Acknowledged are also the limitations and restrictions analysts have to face if they want to apply quality control. The concept of in-house RMs or quality control materials (QCMs) is advocated to supplement the use of CRMs for quality control purposes. On hand advice on how to select, prepare, characterize and use these QCMs is given from the experts' perspective. Several scenarios are described to make this concept widely applicable to: advanced laboratories with CRMs with validated analytical techniques available, laboratories with less experience and facilities, as well as cases were labile compounds and unstable matrices are involved. Each scenario considers different approaches to overcome the lack of appropriate CRMs and advise on the preparation of QCMs, which might fit the particular purpose

  11. Development and use of reference materials and quality control materials

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-04-01

    Current knowledge is summarized on correct use of commercially available certified reference materials (CRMs) and reference materials (RMs). Acknowledged are also the limitations and restrictions analysts have to face if they want to apply quality control. The concept of in-house RMs or quality control materials (QCMs) is advocated to supplement the use of CRMs for quality control purposes. On hand advice on how to select, prepare, characterize and use these QCMs is given from the experts' perspective. Several scenarios are described to make this concept widely applicable to: advanced laboratories with CRMs with validated analytical techniques available, laboratories with less experience and facilities, as well as cases were labile compounds and unstable matrices are involved. Each scenario considers different approaches to overcome the lack of appropriate CRMs and advise on the preparation of QCMs, which might fit the particular purpose.

  12. Materials science and architecture

    Science.gov (United States)

    Bechthold, Martin; Weaver, James C.

    2017-12-01

    Materiality — the use of various materials in architecture — has been fundamental to the design and construction of buildings, and materials science has traditionally responded to needs formulated by design, engineering and construction professionals. Material properties and processes are shaping buildings and influencing how they perform. The advent of technologies such as digital fabrication, robotics and 3D printing have not only accelerated the development of new construction solutions, but have also led to a renewed interest in materials as a catalyst for novel architectural design. In parallel, materials science has transformed from a field that explains materials to one that designs materials from the bottom up. The conflation of these two trends is giving rise to materials-based design research in which architects, engineers and materials scientists work as partners in the conception of new materials systems and their applications. This Review surveys this development for different material classes (wood, ceramics, metals, concrete, glass, synthetic composites and polymers), with an emphasis on recent trends and innovations.

  13. A new certified reference material for size analysis of nanoparticles

    International Nuclear Information System (INIS)

    Braun, Adelina; Kestens, Vikram; Franks, Katrin; Roebben, Gert; Lamberty, Andrée; Linsinger, Thomas P. J.

    2012-01-01

    A certified reference material, ERM-FD100, for quality assurance and validation of various nanoparticle sizing methods, was developed by the Institute for Reference Materials and Measurements. The material was prepared from an industrially sourced colloidal silica containing nanoparticles with a nominal equivalent spherical diameter of 20 nm. The homogeneity and stability of the candidate reference material was assessed by means of dynamic light scattering and centrifugal liquid sedimentation. Certification of the candidate reference material was based on a global interlaboratory comparison in which 34 laboratories participated with various analytical methods (DLS, CLS, EM, SAXS, ELS). After scrutinising the interlaboratory comparison data, 4 different certified particle size values, specific for the corresponding analytical method, could be assigned. The good comparability of results allowed the certification of the colloidal silica material for nanoparticle size analysis.

  14. Reference materials for micro-analytical nuclear techniques

    International Nuclear Information System (INIS)

    Valkovic, V.; Zeisler, R.; Bernasconi, G.; Danesi, P.R.

    1994-01-01

    Direct application of many existing reference materials in micro-analytical procedures such as energy dispersive x-ray fluorescence (EDXRF), particle induced x-ray emission spectroscopy (PIXE) and ion probe techniques for the determination of trace elements is often impossible or difficult because: 1) other constituents present in large amounts interfere with the determination; 2) trace components are not sufficiently homogeneously distributed in the sample. Therefore specific natural-matrix reference materials containing very low levels of trace elements and having high degree of homogeneity are required for many micro-analytical procedures. In this report, selection of the types of environmental and biological materials which are suitable for micro-analytical techniques will be discussed. (author)

  15. Teaching materials science and engineering

    Indian Academy of Sciences (India)

    Abstract. This paper is written with the intention of simulating discussion on teaching materials science and engineering in the universities. The article illustrates the tasks, priorities, goals and means lying ahead in the teaching of materials science and engineering for a sustainable future.

  16. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. P K Parhi. Articles written in Bulletin of Materials Science. Volume 24 Issue 2 April 2001 pp 143-149. Failure analysis of multiple delaminated composite plates due to bending and impact · P K Parhi S K Bhattacharyya P K Sinha · More Details Abstract Fulltext PDF. The present ...

  17. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. A S Prakash. Articles written in Bulletin of Materials Science. Volume 29 Issue 4 August 2006 pp 339-345 Ceramics and Glasses. Solution-combustion synthesis of Bi1–LnO1.5 (Ln = Y and La–Yb) oxide ion conductors · Manjunath B Bellakki A S Prakash C Shivakumara M S ...

  18. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. K B R Varma. Articles written in Bulletin of Materials Science. Volume 30 Issue 6 December 2007 pp 567-570 Ceramics and Glasses. Microwave synthesis and sintering characteristics of CaCu3Ti4O12 · P Thomas L N Sathapathy K Dwarakanath K B R Varma · More Details ...

  19. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. K Prasad. Articles written in Bulletin of Materials Science. Volume 27 Issue 6 December 2004 pp 547-553 Glasses and Ceramics. Impedance analysis of Pb2Sb3LaTi5O18 ceramic · C K Suman K Prasad R N P Choudhary · More Details Abstract Fulltext PDF. Polycrystalline ...

  20. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. D K Avasthi. Articles written in Bulletin of Materials Science. Volume 27 Issue 3 June 2004 pp 263-267 Polymers. Electrical properties of ion irradiated polypropylene films · N L Singh Anita Sharma V Shrinet A K Rakshit D K Avasthi · More Details Abstract Fulltext PDF. The effect ...

  1. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. V Shrinet. Articles written in Bulletin of Materials Science. Volume 27 Issue 3 June 2004 pp 263-267 Polymers. Electrical properties of ion irradiated polypropylene films · N L Singh Anita Sharma V Shrinet A K Rakshit D K Avasthi · More Details Abstract Fulltext PDF. The effect of ...

  2. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. A K Rakshit. Articles written in Bulletin of Materials Science. Volume 27 Issue 3 June 2004 pp 263-267 Polymers. Electrical properties of ion irradiated polypropylene films · N L Singh Anita Sharma V Shrinet A K Rakshit D K Avasthi · More Details Abstract Fulltext PDF. The effect ...

  3. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. P M Raole. Articles written in Bulletin of Materials Science. Volume 34 Issue 1 February 2011 pp 81-88. Effect of ion beam irradiation on metal particle doped polymer composites · N L Singh Sejal Shah Anjum Qureshi A Tripathi F Singh D K Avasthi P M Raole · More Details ...

  4. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. LI-XIA YANG. Articles written in Bulletin of Materials Science. Volume 34 Issue 2 April 2011 pp 233-237. Shape control synthesis of low-dimensional calcium sulfate · Li-Xia Yang Yan-Feng Meng Ping Yin Ying-Xia Yang Ying-Ying Tang Lai-Fen Qin · More Details Abstract ...

  5. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. B N Dev. Articles written in Bulletin of Materials Science. Volume 29 Issue 2 April 2006 pp 101-105 Polymers. Proton microbeam irradiation effects on PtBA polymer · J Kamila S Roy K Bhattacharjee B Rout B N Dev R Guico J Wang A W Haberl P Ayyub P V Satyam.

  6. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. K R Rajesh. Articles written in Bulletin of Materials Science. Volume 37 Issue 1 February 2014 pp 95-99. High mobility polymer gated organic field effect transistor using zinc phthalocyanine · K R Rajesh V Kannan M R Kim Y S Chae J K Rhee · More Details Abstract Fulltext PDF.

  7. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. N L Singh. Articles written in Bulletin of Materials Science. Volume 27 Issue 3 June 2004 pp 263-267 Polymers. Electrical properties of ion irradiated polypropylene films · N L Singh Anita Sharma V Shrinet A K Rakshit D K Avasthi · More Details Abstract Fulltext PDF. The effect ...

  8. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. Hui Shen. Articles written in Bulletin of Materials Science. Volume 30 Issue 2 April 2007 pp 101-104 Single Crystals. Piezoelectric properties of Sr3Ga2Ge4O14 single crystals · Anhua Wu Jiayue Xu Juan Zhou Hui Shen · More Details Abstract Fulltext PDF. A new piezoelectric ...

  9. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. K V Shah. Articles written in Bulletin of Materials Science. Volume 26 Issue 7 December 2003 pp 715-720 Glasses and Ceramics. Preparation and studies of some thermal, mechanical and optical properties of Al2O3(1 – )NaPO3 glass system · K V Shah V Sudarsan M ...

  10. Biological and environmental reference materials in CENAM.

    Science.gov (United States)

    Arvizu-Torres, R; Perez-Castorena, A; Salas-Tellez, J A; Mitani-Nakanishi, Y

    2001-06-01

    Since 1994, when the NIST/NOAA Quality Assurance Program in Chemical Measurements was discussed in Queretaro, CENAM, the National Measurement Institute (NMI) of Mexico, has become involved in the development of reference materials. In the field of biological and environmental reference materials, in particular, the NORAMET collaboration program with NIST and NRC, and the North-American Environmental Cooperation signed among three free-trade treaty organizations, have greatly helped the development of the materials metrology program in the newly established CENAM. This paper describes some particularly significant efforts of CENAM in the development of biological and environmental reference materials, on the basis of inter-comparison studies organized with local and governmental environmental agencies of Mexico. In the field of water pollution CENAM has developed a practical proficiency testing (PT) scheme for field laboratories, as a part of registration by local government in the metropolitan area, according to the Mexican Ecological Regulation. The results from these eight PTs in the last 5 years have demonstrated that this scheme has helped ensure the reliability of analytical capability of more than 50 field laboratories in three states, Mexico, D.F., and the States of Mexico and Queretaro. Similar experience has been obtained for more than 70 service units of stack emission measurements in the three states in 1998 and 1999, as a result of the design of a PT scheme for reference gas mixtures. This PT scheme has been accomplished successfully by 30 analytical laboratories who provide monitoring services and perform research on toxic substances (Hg, methylmercury, PCB, etc.) in Mexico. To support these activities, reference samples have been produced through the NIST SRMs, and efforts have been made to increase CENAM's capability in the preparation of primary reference materials in spectrometric solutions and gas mixtures. Collaboration among NMIs has also

  11. REFERENCE MATERIALS IN THE SPHERE OF USE OF ATOMIC ENERGY

    Directory of Open Access Journals (Sweden)

    V. A. Borisov

    2015-01-01

    Full Text Available The article describes the chronology of development of the system of reference materials in the nuclear industry of the Russian Federation. The basic documents used in the sphere of nuclear energy are described. The nomenclature of reference materials and feature of their application in the "Rosatom" is given. The prospects of development activities in the field of reference materials are formulated.

  12. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. F Wang. Articles written in Bulletin of Materials Science. Volume 34 Issue 5 August 2011 pp 1033-1037. Synthesis of Mn-doped CeO2 nanorods and their application as humidity sensors · C H Hu C H Xia F Wang M Zhou P F Yin X Y Han · More Details Abstract Fulltext PDF.

  13. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. S K Singh. Articles written in Bulletin of Materials Science. Volume 25 Issue 6 November 2002 pp 561-563. Synthesis of SiC from rice husk in a plasma reactor · S K Singh B C Mohanty S Basu · More Details Abstract Fulltext PDF. A new route for production of SiC from rice husk ...

  14. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. T K Bhattacharya. Articles written in Bulletin of Materials Science. Volume 26 Issue 7 December 2003 pp 703-706 Cements. Solid state sintering of lime in presence of La2O3 and CeO2 · T K Bhattacharya A Ghosh H S Tripathi S K Das · More Details Abstract Fulltext PDF.

  15. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. C H Xia. Articles written in Bulletin of Materials Science. Volume 34 Issue 5 August 2011 pp 1033-1037. Synthesis of Mn-doped CeO2 nanorods and their application as humidity sensors · C H Hu C H Xia F Wang M Zhou P F Yin X Y Han · More Details Abstract Fulltext PDF.

  16. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. G Prasad. Articles written in Bulletin of Materials Science. Volume 23 Issue 5 October 2000 pp 431-437 High T c Superconductors. Studies on electrical properties of SrBi4Ti4–3Fe4O15 · N Venkat Ramulu G Prasad S V Suryanarayana T Bhima Sankaram · More Details ...

  17. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    ... India; Department of Physics, Sultan Qaboos University, Muscat, P.O. Box 36, Code 123, Oman; Department of Polymer Science andRubber Technology, Cochin University of Science and Technology, Cochin 682022, India; Department of Materials Science and Nanoengineering, Rice University, Houston, TX 77005, USA ...

  18. Preparation and analysis of a marble reference material

    International Nuclear Information System (INIS)

    Carmo Freitas, M.; Moens, L.; Seabra e Barros, J.

    1988-01-01

    A 7 kg stone of a Carrara marble was reduced to grains smaller than 100 μm, mixed and homogenized in order to prepare a marble reference material. The homogeneity was tested for 16 elements by instrumental neutron activation analysis (INAA). Through a one-way analysis of variance based on several analyses of each of 15 bottles and within the same bottle, it was concluded that the inter-bottle heterogeneity is not greater than the intra-bottle heterogeneity. Results on the concentration of major and trace elements in the marble reference material, obtained by different laboratories and different techniques, are given. The limestone certified reference material KALKSTEIN KH was used to evaluate measurement accuracy, to intercalibrate laboratories, and to provide compatibility of measurement data. (author) 10 refs.; 12 tabs

  19. Preparation of in-house graphite reference material for boron

    International Nuclear Information System (INIS)

    Kumar, Sanjukta A.; Venkatesh, K.; Swain, Kallola K.; Manisha, V.; Kamble, Granthali S.; Pandey, Shailaja P.; Remya Devi, P.S.; Ghosh, M.; Verma, R.

    2016-05-01

    Graphite is extensively used in nuclear technology. Boron concentration in graphite is one of the important parameters that decide its acceptability for nuclear applications. Reliable analytical methods are essential for the determination of boron in graphite at concentration about 5 mg kg -1 . Reference materials are used for validation of existing analytical methods and developing new methodologies. In view of the importance of determination of boron in graphite and unavailability of graphite reference material, an In-house graphite reference material was prepared in Analytical Chemistry Division. Graphite source material was procured, processed to obtain powder of ≤ 75 μm (200 mesh) and bottled. Procedures were developed for the determination of boron in graphite using inductively coupled plasma optical emission spectrometry (ICPOES) and inductively coupled plasma mass spectrometry (ICPMS) techniques. Homogeneity testing was carried out on the bottled units and boron content along with the combined and expanded uncertainties were established. The assigned boron concentration in the In-house graphite reference material is (7.3±0.46) mg kg -1 . (author)

  20. Certification of a niobium metal reference material for neutron dosimetry (EC nuclear reference material 526)

    International Nuclear Information System (INIS)

    Ingelbrecht, C.; Pauwels, J.

    1990-01-01

    Niobium metal, of 99.999% nominal purity, in the form of 0.02 and 0.1 mm thick foil and of 0.5 mm diameter wire, has been certified for its tantalum mass fraction. The certified value of the tantalum mass fraction is 0.3 ± 0.09 mg. Kg -1 , and is based on 70 results obtained by six independent laboratories by neutron activation analysis or inductively coupled plasma mass spectrometry. The material is intended to be used as a reference material in neutron metrology

  1. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Editorial Board. Bulletin of Materials Science. Editor. Giridhar U. Kulkarni, Centre for Nano and Soft Matter Science, Bengaluru. Associate Editors. Ayan Datta, Indian Association for the Cultivation of Science, Kolkata M. Eswaramoorthy, Jawaharlal Nehru Centre for Advanced Scientific Research, Bengaluru A.K. Ganguli ...

  2. Reference material IAEA 413: Major, minor and trace elements in algae

    International Nuclear Information System (INIS)

    2010-01-01

    Reference materials are a basic requirement for any sort of quantitative chemical and radiochemical analysis. Laboratories need them for calibration and quality control throughout their analytical work. The IAEA started to produce reference materials in the early 1960s to meet the needs of the analytical laboratories in its Member States that required reference materials for quality control of their measurements. The initial efforts were focused on the preparation of environmental reference materials containing anthropogenic radionuclides for use by those laboratories employing nuclear analytical techniques. These reference materials were characterized for their radionuclide content through interlaboratory comparison involving a core group of some 10 to 20 specialist laboratories. The success of these early exercises led the IAEA to extend its activities to encompass both terrestrial and marine reference materials containing primordial radionuclides and trace elements. Today, the IAEA has more than 90 reference materials and maintains a customer base of about 5000 members from more than 85 Member States. Within the frame of IAEA activities in production and certification of RM, this report describes the certification of the IAEA 413: Major, minor and trace elements in algae. Details are given on methodologies and data evaluation

  3. MSRR Rack Materials Science Research Rack

    Science.gov (United States)

    Reagan, Shawn

    2017-01-01

    The Materials Science Research Rack (MSRR) is a research facility developed under a cooperative research agreement between NASA and the European Space Agency (ESA) for materials science investigations on the International Space Station (ISS). The MSRR is managed at the Marshall Space Flight Center (MSFC) in Huntsville, AL. The MSRR facility subsystems were manufactured by Teledyne Brown Engineering (TBE) and integrated with the ESA/EADS-Astrium developed Materials Science Laboratory (MSL) at the MSFC Space Station Integration and Test Facility (SSITF) as part of the Systems Development Operations Support (SDOS) contract. MSRR was launched on STS-128 in August 2009, and is currently installed in the U. S. Destiny Laboratory Module on the ISS. Materials science is an integral part of developing new, safer, stronger, more durable materials for use throughout everyday life. The goal of studying materials processing in space is to develop a better understanding of the chemical and physical mechanisms involved, and how they differ in the microgravity environment of space. To that end, the MSRR accommodates advanced investigations in the microgravity environment of the ISS for basic materials science research in areas such as solidification of metals and alloys. MSRR allows for the study of a variety of materials including metals, ceramics, semiconductor crystals, and glasses. Materials science research benefits from the microgravity environment of space, where the researcher can better isolate chemical and thermal properties of materials from the effects of gravity. With this knowledge, reliable predictions can be made about the conditions required on Earth to achieve improved materials. MSRR is a highly automated facility with a modular design capable of supporting multiple types of investigations. Currently the NASA-provided Rack Support Subsystem provides services (power, thermal control, vacuum access, and command and data handling) to the ESA developed Materials

  4. FWP executive summaries, Basic Energy Sciences Materials Sciences Programs (SNL/NM)

    Energy Technology Data Exchange (ETDEWEB)

    Samara, G.A.

    1997-05-01

    The BES Materials Sciences Program has the central theme of Scientifically Tailored Materials. The major objective of this program is to combine Sandia`s expertise and capabilities in the areas of solid state sciences, advanced atomic-level diagnostics and materials synthesis and processing science to produce new classes of tailored materials as well as to enhance the properties of existing materials for US energy applications and for critical defense needs. Current core research in this program includes the physics and chemistry of ceramics synthesis and processing, the use of energetic particles for the synthesis and study of materials, tailored surfaces and interfaces for materials applications, chemical vapor deposition sciences, artificially-structured semiconductor materials science, advanced growth techniques for improved semiconductor structures, transport in unconventional solids, atomic-level science of interfacial adhesion, high-temperature superconductors, and the synthesis and processing of nano-size clusters for energy applications. In addition, the program includes the following three smaller efforts initiated in the past two years: (1) Wetting and Flow of Liquid Metals and Amorphous Ceramics at Solid Interfaces, (2) Field-Structured Anisotropic Composites, and (3) Composition-Modulated Semiconductor Structures for Photovoltaic and Optical Technologies. The latter is a joint effort with the National Renewable Energy Laboratory. Separate summaries are given of individual research areas.

  5. Mineral Surface Reactivity in teaching of Science Materials

    Science.gov (United States)

    Del Hoyo Martínez, Carmen

    2013-04-01

    which enables him to continuous innovation. Different materials are used in the adsorption and improvement and design of new adsorbents, most of whom remain under patent, so they do not know the procedures and products used, but in all cases the safety and / or biodegradability of materials used is an important issue in their choice for environmental applications. In regard to materials, safe and low cost must be mentioned clays and clay minerals, whose colloidal properties, ease of generating structural changes, abundance in nature, and low cost make them very suitable for adsorption chemical contaminants. We proposed to use these materials to show the different aspects for the study of the Science Materials. References -del Hoyo, C. (2007b). Layered Double Hydroxides and human health: An overview. Applied Clay Science. 36, 103-121. -Konta, J. (1995). Clay and man: Clay raw materials in the service of man. Applied Clay Science. 10, 275-335. -Volzone, C. (2007). Retention of pollutant gases: Comparison between clay minerals and their modified products. Applied Clay Science. 36, 191-196.

  6. Bulletin of Materials Science | News

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. M K Rabinal. Articles written in Bulletin of Materials Science. Volume 35 Issue 4 August 2012 pp 529-532. An optical tweezer-based study of antimicrobial activity of silver nanoparticles · Yogesha Sarbari Bhattacharya M K Rabinal Sharath Ananthamurthy · More Details Abstract ...

  7. Instrumental neutron activation analysis of marine sediment in-house reference material

    International Nuclear Information System (INIS)

    Nazaratul Ashifa Abdullah Salim; Mohd Suhaimi Hamzah; Mohd Suhaimi Elias; Siong, W.B.; Shamsiah Abdul Rahman; Azian Hashim; Shakirah Abdul Shukor

    2013-01-01

    Reference materials play an important role in demonstrating the quality and reliability of analytical data. The advantage of using in-house reference materials is that they provide a relatively cheap option as compared to using commercially available certified reference material (CRM) and can closely resemble the laboratory routine test sample. A marine sediment sample was designed as an in-house reference material, in the framework of quality assurance and control (QA/QC) program of the Neutron Activation Analysis (NAA) Laboratory at Nuclear Malaysia. The NAA technique was solely used for the homogeneity test of the marine sediment sample. The CRM of IAEA- Soil 7 and IAEA- SL1 (Lake Sediment) were applied in the analysis as compatible matrix based reference materials for QA purposes. (Author)

  8. Certification of a nickel metal reference material for neutron dosimetry (EC Nuclear Reference Material 521)

    International Nuclear Information System (INIS)

    Pauwels, J.

    1988-01-01

    Nickel metal, of 99.99 % nominal purity and natural isotopic composition, in the form of 0.1 mm thick foil and 0.5 mm diameter wire has been certified for its cobalt mass fraction. The certified value of cobalt (<0.1μg.g-1) is based on 38 results obtained by neutron activation analysis, emission spectrometry with inductively coupled plasma excitation and atomic absorption spectrometry, whereas the isotopic composition of the nickel was verified by thermal ionization mass spectrometry. The material is intended to be used as a reference material in neutron metrology

  9. Certification of an aluminium metal reference material for neutron dosimetry (EC nuclear reference material 523)

    International Nuclear Information System (INIS)

    Pauwels, J.; Ingelbrecht, C.

    1990-01-01

    Aluminium metal of > 99.999% nominal purity in the form of 0.1 mm and 1 mm thick foil and of 1 mm diameter wire has been certified for its sodium mass fraction. The certified value of the sodium mass fraction ( -1 ) is based on 21 results from three laboratories using two different methods, which are neutron activation analysis and atomic absorption spectrometry. The overall purity was estimated using spark source mass spectrometry and neutron activation analysis. The material is intended to be used as a reference material in neutron metrology

  10. Production of candidate natural matrix reference materials for micro-analytical techniques

    International Nuclear Information System (INIS)

    Zeisler, R.; Fajgelj, A.; Zeiller, E.

    2002-01-01

    Homogeneity is considered to be the most vital prerequisite for a certified reference material (CRM); more stringent requirements exist for the analysis of small subsamples. Many of the natural matrix CRMs are prepared from bulk samples by grinding and milling them to a certain particle size, which is expected to provide a more homogenous material; however recommended sample sizes for biological and environmental reference materials are found to be more than 100 mg. Since the milling of materials is costly and has some drawbacks, natural materials that already occur as small particles such as air particulate matter, certain sediments, and cellular biological materials may form the basis of the required reference materials. The nature of these materials, i.e. naturally occurring particles, may provide ideal model reference material. We describe here the production of the materials and preliminary tests, the evaluation for the micro-analytical techniques

  11. Nuclear science in the 20th century. Nuclear technology applications in material science

    International Nuclear Information System (INIS)

    Pei Junchen; Xu Furong; Zheng Chunkai

    2003-01-01

    The application of nuclear technology to material science has led to a new cross subject, nuclear material science (also named nuclear solid physics) which covers material analysis, material modification and new material synthesis. This paper reviews the development of nuclear technical applications in material science and the basic physics involved

  12. Developments in reactor materials science methodology

    International Nuclear Information System (INIS)

    Tsykanov, V.A.; Ivanov, V.B.

    1987-01-01

    Problems related to organization of investigations into reactor materials science are considered. Currently the efficiency and reliability of nuclear power units are largely determined by the fact, how correctly and quickly conclusions concerning the parameters of designs and materials worked out for a long time in reactor cores, are made. To increase information value of materials science investigations it is necessary to create a uniform system, providing for solving methodical, technical and organizational problems. Peculiarities of the current state of reactor material science are analysed and recommendations on constructing an optimal scheme of investigations and data flow interconnection are given

  13. Development of сertified reference materials set for opened porosity of solid substances and materials (imitators

    Directory of Open Access Journals (Sweden)

    E. P. Sobina

    2016-01-01

    Full Text Available The article deals with data of research for development of certified reference materials set for opened porosity of solid substances and materials (imitators (OPTB SO UNIIM Set Certified Reference Materials GSO 10583-2015. The certified values of opened porosity of metal cylinders were established by the method of hydrostatic weighing before and after boring of holes in. The certified reference materials are intended for calibration and verification of measuring instruments of opened porosity, based on the Boyle - Mariotte's law.

  14. Materials science and engineering. An introduction; Materialwissenschaften und Werkstofftechnik. Eine Einfuehrung

    Energy Technology Data Exchange (ETDEWEB)

    Callister, William D. Jr. [Utah Univ., Salt Lake City, UT (United States). Dept. of Metallurgical Engineering; Rethwisch, David G. [Utah Univ., UT (United States). Dept. of Chemical and Biochemical Engineering

    2013-02-01

    William Callister's bestseller ''Materials Science and Engineering'' is THE textbook of materials science. This is the new German language edition, whose contents have been adapted optimally to the requirements of German students. The ''Callister'' covers all aspects of materials science and engineering for studies and preparation of exams. It follows a well-tried didactic concept, favouring understanding over formalism, and supports the students' learning process: 1. Clearly defined learning goals; 2. At regular intervals, questions to check the understanding of the subject matter just learned; 3. Summaries at the end of each chapter comprising subject matter, equations, key words and cross-references to other chapters; 4. Exemplary calculations, questions and answers, problems and solutions; 5. Digressions to industrial applications; 6. Units and materials names adapted to the German language area. [German] William Callisters englischsprachiger Bestseller ''Materials Science and Engineering'' ist das klassische Lehrbuch der Materialwissenschaften. Nun erscheint die deutsche Ausgabe, deren Inhalte optimal auf die Beduerfnisse der hiesigen Studenten angepasst wurden. Der ''Callister'' bietet den gesamten Stoff der Materialwissenschaften und Werkstofftechnik fuer Studium und Pruefungsvorbereitung. Das erprobte didaktische Konzept zielt ab auf ''Verstaendnis vor Formalismus'' und unterstuetzt den Lernprozess der Studierenden: 1. ausformulierte Lernziele; 2. regelmaessig eingestreute Verstaendnisfragen zum gerade vermittelten Stoff; 3. Kapitelzusammenfassungen mit Lernstoff, Gleichungen, Schluesselwoertern und Querverweisen auf andere Kapitel; 4. durchgerechnete Beispiele, Fragen und Antworten sowie Aufgaben und Loesungen; 5. Exkurse in die industrielle Anwendung; und 6. an den deutschen Sprachraum angepasste Einheiten und Werkstoffbezeichnungen.

  15. A new direction in mathematics for materials science

    CERN Document Server

    Ikeda, Susumu

    2015-01-01

    This book is the first volume of the SpringerBriefs in the Mathematics of Materials and provides a comprehensive guide to the interaction of mathematics with materials science. The anterior part of the book describes a selected history of materials science as well as the interaction between mathematics and materials in history. The emergence of materials science was itself a result of an interdisciplinary movement in the 1950s and 1960s. Materials science was formed by the integration of metallurgy, polymer science, ceramics, solid state physics, and related disciplines. We believe that such historical background helps readers to understand the importance of interdisciplinary interaction such as mathematics–materials science collaboration. The middle part of the book describes mathematical ideas and methods that can be applied to materials problems and introduces some examples of specific studies—for example, computational homology applied to structural analysis of glassy materials, stochastic models for ...

  16. A 244Pu spike reference material CBNM IRM-042A

    International Nuclear Information System (INIS)

    Verbruggen, A.; Gallet, M.; Hendrickx, F.; Bievre, P. de

    1991-01-01

    An highly enriched 244 Pu isotopic reference material (CBNM IRM-042a) has been prepared and certified for 244 Pu isotope concentration. The certified value of (2.257 7 ± 0.004 4).10 18 atoms 242 Pu.kg -1 of solution has been established by isotope dilution mass spectrometry. The plutonium isotopic composition has been determined by thermal ionization mass spectrometry and calibration of these measurements by means of synthetic 242 Pu/ 239 Pu mixtures. The isotopic reference material is supplied in a sealed glass ampoule containing approximately 10 g of a 5M nitric acid solution at an approximate concentration of 1 μg Pu per g solution. This isotopic reference material is part of a systematic CBNM programme to supply spike isotopic reference materials of various isotopes at different concentrations

  17. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    This generated great interest in the development of these heteroatom structured materials through different processing routes. ... of Materials Science, Sardar Patel University, Vallabh Vidyanagar 388 120, India; Materials and Structures Laboratory, Tokyo Institute of Technology, Nagatsuta, Yokohama 226, Japan ...

  18. The structural science of functional materials.

    Science.gov (United States)

    Catlow, C Richard A

    2018-01-01

    The growing complexity of functional materials and the major challenges this poses to structural science are discussed. The diversity of structural materials science and the contributions that computation is making to the field are highlighted.

  19. Reference materials and their role in quality assurance in environmental monitoring

    International Nuclear Information System (INIS)

    Cortes, Eduardo

    2002-01-01

    The importance of a good and routine quality control procedure for the analyses of environmental samples is presented. The use of Reference Materials as one simple procedure for validating analytical methodologies and determining the accuracy of analytical data is emphasized. The quality of the reference materials is also discussed as well as their selection and correct use. The convenience of preparing 'in-house' reference materials is discussed and attention is called to relevant aspects to be considered. An example of the preparation of a reference material is presented and some aspects of the procedure are discussed. (author)

  20. Materials for construction and civil engineering science, processing, and design

    CERN Document Server

    Margarido, Fernanda

    2015-01-01

    This expansive volume presents the essential topics related to construction materials composition and their practical application in structures and civil installations. The book's diverse slate of expert authors assemble invaluable case examples and performance data on the most important groups of materials used in construction, highlighting aspects such as nomenclature, the properties, the manufacturing processes, the selection criteria, the products/applications, the life cycle and recyclability, and the normalization. Civil Engineering Materials: Science, Processing, and Design is ideal for practicing architects; civil, construction, and structural engineers, and serves as a comprehensive reference for students of these disciplines. This book also: ·       Provides a substantial and detailed overview of traditional materials used in structures and civil infrastructure ·       Discusses properties of natural and synthetic materials in construction and materials' manufacturing processes ·  �...

  1. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 30; Issue 4 ... Microwave materials; ceramic dielectric resonators; polytitanates; co-precipitation. ... hypotheses viz. diffusion, high surface and nucleation energy, potential barrier, non-stoichiometry etc as critical factors limiting formation of 2 : 9 as single-phase material.

  2. Microgravity Materials Science Conference 2000. Volume 1

    Science.gov (United States)

    Ramachandran, Narayanan (Editor); Bennett, Nancy (Editor); McCauley, Dannah (Editor); Murphy, Karen (Editor); Poindexter, Samantha (Editor)

    2001-01-01

    This is Volume 1 of 3 of the 2000 Microgravity Material Science Conference that was held June 6-8 at the Von Braun Center, Huntsville, Alabama. It was organized by the Microgravity Materials Science Discipline Working Group, sponsored by the Microgravity Research Division (MRD) at NASA Headquarters, and hosted by NASA Marshall Space Flight Center and the Alliance for Microgravity Materials Science and Applications (AMMSA). It was the fourth NASA conference of this type in the microgravity materials science discipline. The microgravity science program sponsored approx. 200 investigators, all of whom made oral or poster presentations at this conference. In addition, posters and exhibits covering NASA microgravity facilities, advanced technology development projects sponsored by the NASA Microgravity Research Division at NASA Headquarters, and commercial interests were exhibited. The purpose of the conference was to inform the materials science community of research opportunities in reduced gravity and to highlight the Spring 2001 release of the NASA Research Announcement (NRA) to solicit proposals for future investigations. It also served to review the current research and activities in materials science, to discuss the envisioned long-term goals. and to highlight new crosscutting research areas of particular interest to MRD. The conference was aimed at materials science researchers from academia, industry, and government. A workshop on in situ resource utilization (ISRU) was held in conjunction with the conference with the goal of evaluating and prioritizing processing issues in Lunar and Martian type environments. The workshop participation included invited speakers and investigators currently funded in the material science program under the Human Exploration and Development of Space (HEDS) initiative. The conference featured a plenary session every day with an invited speaker that was followed by three parallel breakout sessions in subdisciplines. Attendance was

  3. Microgravity Materials Science Conference 2000. Volume 3

    Science.gov (United States)

    Ramachandran, Narayanan; Bennett, Nancy; McCauley, Dannah; Murphy, Karen; Poindexter, Samantha

    2001-01-01

    This is Volume 3 of 3 of the 2000 Microgravity Materials Science Conference that was held June 6-8 at the Von Braun Center, Huntsville, Alabama. It was organized by the Microgravity Materials Science Discipline Working Group, sponsored by the Microgravity Research Division (MRD) at NASA Headquarters, and hosted by NASA Marshall Space Flight Center and the Alliance for Microgravity Materials Science and Applications (AMMSA). It was the fourth NASA conference of this type in the Microgravity materials science discipline. The microgravity science program sponsored 200 investigators, all of whom made oral or poster presentations at this conference- In addition, posters and exhibits covering NASA microgravity facilities, advanced technology development projects sponsored by the NASA Microgravity Research Division at NASA Headquarters, and commercial interests were exhibited. The purpose of the conference was to inform the materials science community of research opportunities in reduced gravity and to highlight the Spring 2001 release of the NASA Research Announcement (NRA) to solicit proposals for future investigations. It also served to review the current research and activities in material,, science, to discuss the envisioned long-term goals. and to highlight new crosscutting research areas of particular interest to MRD. The conference was aimed at materials science researchers from academia, industry, and government. A workshop on in situ resource utilization (ISRU) was held in conjunction with the conference with the goal of evaluating and prioritizing processing issues in Lunar and Martian type environments. The workshop participation included invited speakers and investigators currently funded in the material science program under the Human Exploration and Development of Space (HEDS) initiative. The conference featured a plenary session every day with an invited speaker that was followed by three parallel breakout sessions in subdisciplines. Attendance was close

  4. Microgravity Materials Science Conference 2000. Volume 2

    Science.gov (United States)

    Ramachandran, Narayanan (Editor); Bennett, Nancy (Editor); McCauley, Dannah (Editor); Murphy, Karen (Editor); Poindexter, Samantha (Editor)

    2001-01-01

    This is Volume 2 of 3 of the 2000 Microgravity Materials Science Conference that was held June 6-8 at the Von Braun Center, Huntsville, Alabama. It was organized by the Microgravity Materials Science Discipline Working Group, sponsored by the Microgravity Research Division (MRD) at NASA Headquarters, and hosted by NASA Marshall Space Flight Center and the Alliance for Microgravity Materials Science and Applications (AMMSA). It was the fourth NASA conference of this type in the Microgravity materials science discipline. The microgravity science program sponsored approx. 200 investigators, all of whom made oral or poster presentations at this conference- In addition, posters and exhibits covering NASA microgravity facilities, advanced technology development projects sponsored by the NASA Microgravity Research Division at NASA Headquarters, and commercial interests were exhibited. The purpose of the conference %%,its to inform the materials science community of research opportunities in reduced gravity and to highlight the Spring 2001 release of the NASA Research Announcement (NRA) to solicit proposals for future investigations. It also served to review the current research and activities in material,, science, to discuss the envisioned long-term goals. and to highlight new crosscutting research areas of particular interest to MRD. The conference was aimed at materials science researchers from academia, industry, and government. A workshop on in situ resource utilization (ISRU) was held in conjunction with the conference with the goal of evaluating and prioritizing processing issues in Lunar and Martian type environments. The workshop participation included invited speakers and investigators currently funded in the material science program under the Human Exploration and Development of Space (HEDS) initiative. The conference featured a plenary session every day with an invited speaker that was followed by three parallel breakout sessions in subdisciplines. Attendance

  5. [Applications of synthetic biology in materials science].

    Science.gov (United States)

    Zhao, Tianxin; Zhong, Chao

    2017-03-25

    Materials are the basis for human being survival and social development. To keep abreast with the increasing needs from all aspects of human society, there are huge needs in the development of advanced materials as well as high-efficiency but low-cost manufacturing strategies that are both sustainable and tunable. Synthetic biology, a new engineering principle taking gene regulation and engineering design as the core, greatly promotes the development of life sciences. This discipline has also contributed to the development of material sciences and will continuously bring new ideas to future new material design. In this paper, we review recent advances in applications of synthetic biology in material sciences, with the focus on how synthetic biology could enable synthesis of new polymeric biomaterials and inorganic materials, phage display and directed evolution of proteins relevant to materials development, living functional materials, engineered bacteria-regulated artificial photosynthesis system as well as applications of gene circuits for material sciences.

  6. Density functional theory in materials science.

    Science.gov (United States)

    Neugebauer, Jörg; Hickel, Tilmann

    2013-09-01

    Materials science is a highly interdisciplinary field. It is devoted to the understanding of the relationship between (a) fundamental physical and chemical properties governing processes at the atomistic scale with (b) typically macroscopic properties required of materials in engineering applications. For many materials, this relationship is not only determined by chemical composition, but strongly governed by microstructure. The latter is a consequence of carefully selected process conditions (e.g., mechanical forming and annealing in metallurgy or epitaxial growth in semiconductor technology). A key task of computational materials science is to unravel the often hidden composition-structure-property relationships using computational techniques. The present paper does not aim to give a complete review of all aspects of materials science. Rather, we will present the key concepts underlying the computation of selected material properties and discuss the major classes of materials to which they are applied. Specifically, our focus will be on methods used to describe single or polycrystalline bulk materials of semiconductor, metal or ceramic form.

  7. Recent developments in the field of environmental reference materials at the JRC Ispra.

    Science.gov (United States)

    Muntau, H

    2001-06-01

    The production of reference materials for environmental analysis started in the Joint Research Centre at Ispra/Italy in 1972 with the objective of later certification by the BCR, but for obvious budget reasons only a fraction of the total production achieved at Ispra ever reached certification level, although all materials were produced according to the severe quality requirements requested for certified reference materials. Therefore, the materials not destinated to certification are in growing demand as inter-laboratory test materials and as laboratory reference materials, for internal quality control, e.g., by control charts. The history of reference material production within the Joint Research Centre is briefly reviewed and the latest additions described. New developments such as micro-scale reference materials intended for analytical methods requiring sample intakes at milligram or sub-milligram level and therefor not finding supply on the reference material market, and "wet" environmental reference materials, which meet more precisely the "real-world" environmental analysis conditions, are presented and the state-of-the-art discussed.

  8. Determination of ancient ceramics reference material by neutron activation analysis

    International Nuclear Information System (INIS)

    Li Huhou; Sun Jingxin; Wang Yuqi; Lu Liangcai

    1986-01-01

    Contents of trace elements in the reference material of ancient ceramics (KPS-1) were determined by means of activation analysis, using thermal neutron irradiation produced in nuclear reactor. KPS-1 favoured the analysis of ancient ceramics because it had not only many kinds of element but also appropriate contents of composition. The values presented here are reliable within the experimental precision, and have shown that the reference material had a good homogeneity. So KPS-1 can be used as a suitable reference material for the ancient ceramics analysis

  9. Eliminating traditional reference services in an academic health sciences library: a case study

    Science.gov (United States)

    Schulte, Stephanie J

    2011-01-01

    Question: How were traditional librarian reference desk services successfully eliminated at one health sciences library? Setting: The analysis was done at an academic health sciences library at a major research university. Method: A gap analysis was performed, evaluating changes in the first eleven months through analysis of reference transaction and instructional session data. Main Results: Substantial increases were seen in the overall number of specialized reference transactions and those conducted by librarians lasting more than thirty minutes. The number of reference transactions overall increased after implementing the new model. Several new small-scale instructional initiatives began, though perhaps not directly related to the new model. Conclusion: Traditional reference desk services were eliminated at one academic health sciences library without negative impact on reference and instructional statistics. Eliminating ties to the confines of the physical library due to staffing reference desk hours removed one significant barrier to a more proactive liaison program. PMID:22022221

  10. Materials irradiation research in neutron science

    Energy Technology Data Exchange (ETDEWEB)

    Noda, Kenji; Oyama, Yukio [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment

    1997-11-01

    Materials irradiation researches are planned in Neutron Science Research Program. A materials irradiation facility has been conceived as one of facilities in the concept of Neutron Science Research Center at JAERI. The neutron irradiation field of the facility is characterized by high flux of spallation neutrons with very wide energy range up to several hundred MeV, good accessibility to the irradiation field, good controllability of irradiation conditions, etc. Extensive use of such a materials irradiation facility is expected for fundamental materials irradiation researches and R and D of nuclear energy systems such as accelerator-driven incineration plant for long-lifetime nuclear waste. In this paper, outline concept of the materials irradiation facility, characteristics of the irradiation field, preliminary technical evaluation of target to generate spallation neutrons, and materials researches expected for Neutron Science Research program are described. (author)

  11. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Author Affiliations. U D Lanke1 2. Metallurgical Engineering and Materials Science Department, Indian Institute of Technology, Mumbai 400 076, India; School of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand ...

  12. Annotated Bibliography of Textbooks and Reference Materials in Marine Sciences. Provisional Edition. Intergovernmental Oceanographic Commission, Technical Series.

    Science.gov (United States)

    United Nations Educational, Scientific, and Cultural Organization, Paris (France). Intergovernmental Oceanographic Commission.

    Presented is an annotated bibliography based on selected materials from a preliminary survey of existing bibliographies, publishers' listings, and other sources. It is intended to serve educators and researchers, especially those in countries where marine sciences are just developing. One hundred annotated and 450 non-annotated entries are…

  13. Advances in the material science of concrete

    National Research Council Canada - National Science Library

    Ideker, Jason H; Radlinska, Aleksandra

    2010-01-01

    ... Committee 236, Material Science of Concrete. The session focused on material science aspects of concrete with an emphasis placed on advances in understanding the fundamental scientific topics of cement-based materials, as well as the crucial...

  14. Materials Sciences Programs

    International Nuclear Information System (INIS)

    1977-01-01

    A compilation and index of the ERDA materials sciences program is presented. This compilation is intended for use by administrators, managers, and scientists to help coordinate research and as an aid in selecting new programs

  15. Phosphated minerals to be used as radioactive reference materials

    International Nuclear Information System (INIS)

    Braganca, M.J.C.S.; Tauhata, L.; Clain, A.F.; Moreira, I.

    2003-01-01

    The production and the supplying of certified reference materials, or deliberated contaminated materials containing natural radionuclides for laboratories which analyses environmental samples are fundamentals for the correct measurements of their radioactive levels. This analysis quality represents a important step for the safeguards of the population health, and quality control of the imported and exported products, such as minerals, agricultural and raw materials. The phosphate rocks, containing significant concentrations of thorium, and used as raw material and fertilizers justified a study for better characterization and distinction to be used cas certified reference radioactive materials. Therefore, samples from the two carboanalytical-alkaline chimneys (Araxa and Catalao), and one from metasedimentar origin (Patos de Minas), distant 100 km from each other, were collected and chemical and cholecystographic characterized by optical emission, X-ray diffraction and fluorescence. The element concentrations were determined by neutron activation analysis, ICP-MS and ICP-AES. The results, after multivariate statistical analysis and study of correlations among elements, have shown geochemical similarities of the phosphates from Araxa and Catalao, and differences from Patos de Minas, despite of the geographic proximity. The concentration of thorium between 200 and 500 (mg/g) allows to use such minerals as reference materials

  16. Editorial: Defining materials science: A vision from APL Materials

    Directory of Open Access Journals (Sweden)

    Judith MacManus-Driscoll

    2014-07-01

    Full Text Available These are exciting times for materials science—a field which is growing more rapidly than any other physical science discipline. More than ever, the field is providing the vital link between science and engineering, between pure and applied. But what is the subject's definition and why is the field ballooning? I address these questions in the context of how APL Materials intends to play a role in advancing this important field. My introspective focus arises as we approach the first year anniversary of APL Materials.

  17. Certification of an iron metal reference material for neutron dosimetry (EC nuclear reference material 524)

    International Nuclear Information System (INIS)

    Ingelbrecht, C.; Pauwels, J.; Lievens, F.

    1993-01-01

    Iron metal, of > 99.996% nominal purity, in the form of 0.1 mm thick foil and of 0.5 mm diameter wire has been certified for its manganese and cobalt mass fractions. The certified value of the cobalt mass fraction ( -1 ) is based on 39 accepted results from five laboratories using two different methods. The certified value of the manganese mass fraction ( -1 ) is based on 41 accepted results from five laboratories using three different methods. The overall purity was also verified. The material is intended to be used as a reference material in neutron dosimetry. (authors). 8 refs., 9 tabs., 2 figs

  18. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Author Affiliations. G KOROTCENKOV1 V BRINZARI2 B K CHO1. School of Material Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 500712, Republic of Korea; Department of Theoretical Physics, State University of Moldova, Chisinau, Republic of Moldova ...

  19. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    MOHAMMOD AMINUZZAMAN1 LIM POH YING1 WEE-SHENOG GOH1 AKIRA WATANABE2. Department of Chemical Science, Faculty of Science, Universiti Tunku Abdul Rahman (UTAR), Perak Campus, Jalan Universiti, Bandar Barat, 31900 Kampar, Malaysia; Institute of Multidisciplinary Research for Advanced Materials ...

  20. Introduction Of Computational Materials Science

    International Nuclear Information System (INIS)

    Lee, Jun Geun

    2006-08-01

    This book gives, descriptions of computer simulation, computational materials science, typical three ways of computational materials science, empirical methods ; molecular dynamics such as potential energy, Newton's equation of motion, data production and analysis of results, quantum mechanical methods like wave equation, approximation, Hartree method, and density functional theory, dealing of solid such as pseudopotential method, tight-binding methods embedded atom method, Car-Parrinello method and combination simulation.

  1. The materiality of materials and artefacts used in science classrooms

    DEFF Research Database (Denmark)

    Cowie, Bronwen; Otrel-Cass, Kathrin; Moreland, Judy

    Material objects and artefacts receive limited attention in science education (Roehl, 2012) though they shape emerging interactions. This is surprising given science has material and a social dimensions (Pickering, 1995) whereby new knowledge develops as a consensus explanation of natural phenomena...... that is mediated significantly through materials and instruments used. Here we outline the ways teachers deployed material objects and artefacts by identifying their materiality to provide scenarios and resources (Roth, 2005) for interactions. Theoretical framework We use Ingold's (2011) distinction between...... materials as natural objects in this world and artefacts as manmade objects. We are aware that in a classroom material objects and artefacts shape, and are shaped by classroom practice through the way they selectively present scientific explanations. However, materials and artefacts have no intrinsic...

  2. Qi Liu - Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science. QI LIU. Articles written in Bulletin of Materials Science. Volume 34 Issue 2 April 2011 pp 183-189. Study of structural transformations and phases formation upon calcination of Zn–Ni–Al hydrotalcite nanosheets · Zhanshuang Li Yanchao Song Jun Wang Qi Liu Piaoping Yang ...

  3. Overview of NASA's Microgravity Materials Science Program

    Science.gov (United States)

    Downey, James Patton

    2012-01-01

    The microgravity materials program was nearly eliminated in the middle of the aughts due to budget constraints. Hardware developments were eliminated. Some investigators with experiments that could be performed using ISS partner hardware received continued funding. Partnerships were established between US investigators and ESA science teams for several investigations. ESA conducted peer reviews on the proposals of various science teams as part of an ESA AO process. Assuming he or she was part of a science team that was selected by the ESA process, a US investigator would submit a proposal to NASA for grant funding to support their part of the science team effort. In a similar manner, a US materials investigator (Dr. Rohit Trivedi) is working as a part of a CNES selected science team. As funding began to increase another seven materials investigators were selected in 2010 through an NRA mechanism to perform research related to development of Materials Science Research Rack investigations. One of these has since been converted to a Glovebox investigation.

  4. Material synthesis and evaluation of metrological characteristics of potassium fluozirconate certified reference material

    Directory of Open Access Journals (Sweden)

    D. G. Lisienko

    2016-01-01

    Full Text Available The relevance of the study. For metrological support of control methods for composition ofpotassium fluozirconate, used in the production of metallic zirconium, applied in various technical fields, including nuclear power, electronics, chemical engineering. The purpose: development of synthesis technology, and determination of metrological characteristics of certified reference material for composition ofpotassium fluozirconate (set, intended for metrological support of measuring element mass fraction: hafnium (Hf, silicon (Si, iron (Fe, aluminium (Al, chromium (Cr, tin (Sn, titanium (Ti in potassium fluozirconate. Research methods: X-ray diffraction, differential scanning colorimetry, thermogravimetric analysis, atomic-emission spectral analysis with arc excitation, mass spectral analysis, X-ray fluorescence analysis. Results. As a result of research a set of certified reference materials for composition of potassium fluozirconate is developed and produced. The CRM type is approved by Federal Agency on Technical Regulating and Metrology and registered in State Register of Approved Reference Material Types under number GSO 10593-2015.

  5. Preparation of reference material for the measurement of natural radioactivity

    International Nuclear Information System (INIS)

    Ben Tekaya, Malik

    2010-01-01

    The objective of this work is to prepare reference material for the calibration of gamma spectrometry, alpha and XRF .Many procedures of chemical preparation and radiological analysis of a reference material from Triple Superphosphate were tested. Several techniques and methods of measurement were used. In addition to a description and validation of these procedures, a study of repeatability was conducted which resulted in a positive characterization of this material.

  6. Perspectives on Materials Science in 3D

    DEFF Research Database (Denmark)

    Juul Jensen, Dorte

    2012-01-01

    Materials characterization in 3D has opened a new era in materials science, which is discussed in this paper. The original motivations and visions behind the development of one of the new 3D techniques, namely the three dimensional x-ray diffraction (3DXRD) method, are presented and the route...... to its implementation is described. The present status of materials science in 3D is illustrated by examples related to recrystallization. Finally, challenges and suggestions for the future success for 3D Materials Science relating to hardware evolution, data analysis, data exchange and modeling...

  7. Homogeneity test of the ceramic reference materials for non-destructive quantitative

    International Nuclear Information System (INIS)

    Li Li; Fong Songlin; Zhu Jihao; Feng Xiangqian; Xie Guoxi; Yan Lingtong

    2010-01-01

    In order to study elemental composition of ancient porcelain samples, we developed a set of ceramic reference materials for non-destructive quantitative analysis. In this paper,homogeneity of Al, Si, K, Ca, Ti, Mn and Fe contents in the ceramic reference materials is investigated by EDXRF. The F test and the relative standard deviation are used to treat the normalized net counts by SPSS. The results show that apart from the DY2 and JDZ4 reference materials, to which further investigation would be needed, homogeneity of the DH, DY3, JDZ3, JDZ6, GY1, RY1, LQ4, YJ1, YY2 and JY2 meets the requirements of ceramic reference materials for non-destructive quantitative analysis. (authors)

  8. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Laboratory of Materials, Processes, Environment and Quality, Cady Ayyed University, National School of Applied Sciences, 63, 46000 Safi, Morocco; LMPHE (URAC 12), Faculty of Science, Mohammed V-Agdal University, Rabat, Morocco; Institut Néel, CNRS et Université Joseph Fourier, BP 166, F-38042 Grenoble Cedex ...

  9. Preparation and certification of arsenate [As(V)] reference material, NMIJ CRM 7912-a.

    Science.gov (United States)

    Narukawa, Tomohiro; Kuroiwa, Takayoshi; Narushima, Izumi; Jimbo, Yasujiro; Suzuki, Toshihiro; Chiba, Koichi

    2010-05-01

    Arsenate [As(V)] solution reference material, National Metrology Institute of Japan (NMIJ) certified reference material (CRM) 7912-a, for speciation of arsenic species was developed and certified by NMIJ, the National Institute of Advanced Industrial Science and Technology. High-purity As(2)O(3) reagent powder was dissolved in 0.8 M HNO(3) solution and As(III) was oxidized to As(V) with HNO(3) to prepare 100 mg kg(-1) of As(V) candidate CRM solution. The solution was bottled in 400 bottles (50 mL each). The concentration of As(V) was determined by four independent analytical techniques-inductively coupled plasma mass spectrometry, inductively coupled plasma optical emission spectrometry, graphite furnace atomic absorption spectrometry, and liquid chromatography inductively coupled plasma mass spectrometry-according to As(V) calibration solutions, which were prepared from the arsenic standard of the Japan Calibration Service system and whose species was guaranteed to be As(V) by NMIJ. The uncertainties of all the measurements and preparation procedures were evaluated. The certified value of As(V) in the CRM is (99.53 +/- 1.67) mg kg(-1) (k = 2).

  10. [The water content reference material of water saturated octanol].

    Science.gov (United States)

    Wang, Haifeng; Ma, Kang; Zhang, Wei; Li, Zhanyuan

    2011-03-01

    The national standards of biofuels specify the technique specification and analytical methods. A water content certified reference material based on the water saturated octanol was developed in order to satisfy the needs of the instrument calibration and the methods validation, assure the accuracy and consistency of results in water content measurements of biofuels. Three analytical methods based on different theories were employed to certify the water content of the reference material, including Karl Fischer coulometric titration, Karl Fischer volumetric titration and quantitative nuclear magnetic resonance. The consistency of coulometric and volumetric titration was achieved through the improvement of methods. The accuracy of the certified result was improved by the introduction of the new method of quantitative nuclear magnetic resonance. Finally, the certified value of reference material is 4.76% with an expanded uncertainty of 0.09%.

  11. Preparation of reference material for organochlorine pesticides in a herbal matrix.

    Science.gov (United States)

    Wong, Yiu Chung; Wong, Siu Kay; Kam, Tat Ting

    2008-12-01

    The development of reference material for four organochlorine pesticides, namely hexachlorobenzene and three isomers of hexachlorocyclohexane (alpha-hexachlorocyclohexane, beta-hexachlorocyclohexane and gamma-hexachlorocyclohexane), in a ginseng root sample is presented. Raw materials (Panax ginseng) were purchased from a local market and confirmed to contain certain levels of incurred organochlorine pesticide residues by a validated gas chromatography-mass selective detection method. A total of more than 300 bottles each containing 25 g of samples were prepared after the materials had been freeze-dried, milled and thoroughly mixed. The homogeneity and stability of samples from randomly selected bottles were verified and the reference values were characterized using a highly precise isotope dilution gas chromatography-mass spectrometry (ID-GCMS) method that was recently developed by our laboratory. The purity of standard organochlorine chemicals was determined against certified reference materials to establish the accuracy of the ID-GCMS analysis. The concentrations (+/- expanded uncertainty) of hexachlorobenzene, alpha-hexachlorocyclohexane, beta-hexachlorocyclohexane and gamma-hexachlorocyclohexane in the reference material were 0.198 +/- 0.015, 0.450 +/- 0.022, 0.213 +/- 0.011 and 0.370 +/- 0.032 mg kg(-1), respectively. A portion (70 bottles) of the samples was also used in a proficiency testing (PT) scheme for assessing the testing capabilities of field laboratories. The consensus mean values of the PT obtained from the 70 participants were on the same order but deviated by -2.7 to -14.1% from those of the assigned reference values. Because of the wide spread of participants' data (relative standard deviation ranging from 44 to 56%), the PT results were not included in the calculation of the assigned values of the reference materials. The materials served as suitable reference materials to ascertain the quality control and validation processes for the

  12. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Author Affiliations. Wang Juan1 Li Yajiang1 Wu Huiqiang1 Ren Jiangwei1. Key Lab of Liquid Structure and Heredity of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan 250061, P.R. China ...

  13. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    School of Chemical and Materials Engineering, National University of Science and Technology, H/12 Islamabad, Pakistan; Austrian Institute of Technology GmbH, Advanced Materials & Aerospace Technologies, A-2444 Seibersdorf, Austria; Centre of Electrochemical Surface Technology, A-2700 Wiener Neustadt, Austria ...

  14. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Author Affiliations. Xiuqiang Li1 Dong Zhang1 Peiying Zhu1 Chao Yang1. Key Laboratory of Advanced Civil Engineering Materials, Ministry of Education, College of Materials Science and Engineering, Tongji University, 4800 CaoAn Road, Shanghai 200092, China ...

  15. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Materials Chemistry Laboratory, Department of Materials Science, Gulbarga University, Gulbarga 585 106, India; Veeco-India Nanotechnology Laboratory, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560 064, India; R&D Centre Premier Explosives Pvt. Ltd., Hyderabad 500 015, India ...

  16. Certified reference materials for organic analysis

    International Nuclear Information System (INIS)

    QianChuanfan

    2002-01-01

    This presentation discusses the requirements for certified reference materials (CRMs) to be used in measurements of residues of pesticides in food and environmental samples. It deals with the types of CRMs, matrix selection, sample preparation and representativeness. It also discusses CRM validity period and gives some examples of CRM preparation

  17. Immune reactivity of candidate reference materials

    NARCIS (Netherlands)

    Fernandez-Rivas, Montserrat; Aalbers, Marja; Fötisch, Kay; de Heer, Pleuni; Notten, Silla; Vieths, Stefan; van Ree, Ronald

    2006-01-01

    Immune reactivity is a key issue in the evaluation of the quality of recombinant allergens as potential reference materials. Within the frame of the CREATE project, the immune reactivity of the natural and recombinant versions of the major allergens of birch pollen (Bet v 1), grass pollen (Phl p 1

  18. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 23; Issue 6. Resistance to freezing and thawing of mortar specimens made from sulphoaluminate–belite cement ... Author Affiliations. I Janotka1 L' Krajèi1. Institute of Construction and Architecture of the Slovak Academy of Sciences, Bratislava, Slovak Republic ...

  19. Evaluation of a reference material for glycated haemoglobin

    NARCIS (Netherlands)

    Weykamp, CW; Penders, TJ; Muskiet, FAJ; vanderSlik, W

    The use of lyophilized blood as a reference material for glycated haemoglobin was investigated with respect to IFCC criteria for calibrators and control materials. Ninety-two laboratories, using 11 methods, detected no changes in glycated haemoglobin content when the lyophilizate was stored for one

  20. An in-house usage assessment of print reference materials in a ...

    African Journals Online (AJOL)

    The study investigated the utilization of print reference materials in a Nigerian hybrid medical school library, factors influencing utilization or under utilization, and if utilization commensurate with the library's prospect on the use of these materials. During the period of study, it was assumed that all reference materials pulled ...

  1. Standard Reference Development of nuclear material for Tensile and Hardness Test Properties

    International Nuclear Information System (INIS)

    Choo, Y. S.; Kim, D. S.; Yoo, B. O.; Ahn, S. B.; Baik, S. J.; Chun, Y. B.; Kim, K. H.; Hong, K. P.; Ryu, W. S.

    2007-12-01

    Standard reference is a official approved data such a coefficient of physics, approved material properties, and etc., which should be analyzed and evaluated by scientific method to acquire official approval for accuracy and credibility of measured data and information. So it could be used broadly and continuously by various fields of nation and society. It is classified to effective standard reference, verified standard reference, and certified standard reference. There are sixteen fields in designated standard references such a physical chemistry field, material field, metal field, and the others. The standard reference of neutron irradiated nuclear structural material is classified to metal field. This report summarized the whole processes about data collection, data production, data evaluation and the suggestion of details evaluation technical standard for tensile and hardness properties, which were achieved by carry out the project 'nuclear material standard reference development' as a result

  2. Standard Reference Development of nuclear material for Tensile and Hardness Test Properties

    Energy Technology Data Exchange (ETDEWEB)

    Choo, Y. S.; Kim, D. S.; Yoo, B. O.; Ahn, S. B.; Baik, S. J.; Chun, Y. B.; Kim, K. H.; Hong, K. P.; Ryu, W. S

    2007-12-15

    Standard reference is a official approved data such a coefficient of physics, approved material properties, and etc., which should be analyzed and evaluated by scientific method to acquire official approval for accuracy and credibility of measured data and information. So it could be used broadly and continuously by various fields of nation and society. It is classified to effective standard reference, verified standard reference, and certified standard reference. There are sixteen fields in designated standard references such a physical chemistry field, material field, metal field, and the others. The standard reference of neutron irradiated nuclear structural material is classified to metal field. This report summarized the whole processes about data collection, data production, data evaluation and the suggestion of details evaluation technical standard for tensile and hardness properties, which were achieved by carry out the project 'nuclear material standard reference development' as a result.

  3. Certification of biological candidates reference materials by neutron activation analysis

    Science.gov (United States)

    Kabanov, Denis V.; Nesterova, Yulia V.; Merkulov, Viktor G.

    2018-03-01

    The paper gives the results of interlaboratory certification of new biological candidate reference materials by neutron activation analysis recommended by the Institute of Nuclear Chemistry and Technology (Warsaw, Poland). The correctness and accuracy of the applied method was statistically estimated for the determination of trace elements in candidate reference materials. The procedure of irradiation in the reactor thermal fuel assembly without formation of fast neutrons was carried out. It excluded formation of interfering isotopes leading to false results. The concentration of more than 20 elements (e.g., Ba, Br, Ca, Co, Ce, Cr, Cs, Eu, Fe, Hf, La, Lu, Rb, Sb, Sc, Ta, Th, Tb, Yb, U, Zn) in candidate references of tobacco leaves and bottom sediment compared to certified reference materials were determined. It was shown that the average error of the applied method did not exceed 10%.

  4. Certification of a new biological reference material - Virginia Tobacco Leaves (CTA-VTL-2) and homogeneity study by NAA on this and other candidate reference materials

    International Nuclear Information System (INIS)

    Dybczynski, Rajmund; Polkowska-Motrenko, Halina; Samczynski, Zbigniew; Szopa, Zygmunt; Kulisa, Krzysztof; Wasek, Marek

    2002-01-01

    This report describes the laboratory's participation in the interlaboratory comparison run where the laboratory applied neutron activation analysis aimed at certification of the candidate reference material. Data evaluation and statistical treatment steps are discussed. The report also describes homogeneity study on the reference material and provides details of the analytical procedures

  5. Digital chat reference in health science libraries: challenges in initiating a new service.

    Science.gov (United States)

    Dee, Cheryl R; Newhouse, Joshua D

    2005-01-01

    Digital reference service adds a valuable new dimension to health science reference services, but the road to implementation can present questions that require carefully considered decisions. This article incorporates suggestions from the published literature, provides tips from interviews with practicing academic health science librarians, and reports on data from students' exploration of academic health science library Web sites' digital reference services. The goal of this study is to provide guidelines to plan new services, assess user needs, and select software, and to showcase potential benefits of collaboration and proactive and user-friendly marketing. In addition, tips for successful operation and evaluation of services are discussed.

  6. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 33; Issue 1. Dispersion and reinforcing mechanism of carbon nanotubes in epoxy nanocomposites. Smrutisikha Bal ... Author Affiliations. Smrutisikha Bal1. Department of Metallurgical and Materials Engineering, National Institute of Technology, Rourkela 769 008, India ...

  7. A new basaltic glass microanalytical reference material for multiple techniques

    Science.gov (United States)

    Wilson, Steve; Koenig, Alan; Lowers, Heather

    2012-01-01

    The U.S. Geological Survey (USGS) has been producing reference materials since the 1950s. Over 50 materials have been developed to cover bulk rock, sediment, and soils for the geological community. These materials are used globally in geochemistry, environmental, and analytical laboratories that perform bulk chemistry and/or microanalysis for instrument calibration and quality assurance testing. To answer the growing demand for higher spatial resolution and sensitivity, there is a need to create a new generation of microanalytical reference materials suitable for a variety of techniques, such as scanning electron microscopy/X-ray spectrometry (SEM/EDS), electron probe microanalysis (EPMA), laser ablation inductively coupled mass spectrometry (LA-ICP-MS), and secondary ion mass spectrometry (SIMS). As such, the microanalytical reference material (MRM) needs to be stable under the beam, be homogeneous at scales of better than 10–25 micrometers for the major to ultra-trace element level, and contain all of the analytes (elements or isotopes) of interest. Previous development of basaltic glasses intended for LA-ICP-MS has resulted in a synthetic basaltic matrix series of glasses (USGS GS-series) and a natural basalt series of glasses (BCR-1G, BHVO-2G, and NKT-1G). These materials have been useful for the LA-ICP-MS community but were not originally intended for use by the electron or ion beam community. A material developed from start to finish with intended use in multiple microanalytical instruments would be useful for inter-laboratory and inter-instrument platform comparisons. This article summarizes the experiments undertaken to produce a basalt glass reference material suitable for distribution as a multiple-technique round robin material. The goal of the analytical work presented here is to demonstrate that the elemental homogeneity of the new glass is acceptable for its use as a reference material. Because the round robin exercise is still underway, only

  8. Element content and particle size characterization of a mussel candidate reference material

    International Nuclear Information System (INIS)

    Moreira, Edson G.; Vasconcellos, Marina B.A.; Santos, Rafaela G. dos; Martinelli, Jose R.

    2011-01-01

    The use of certified reference materials is an important tool in the quality assurance of analytical measurements. To assure reliability on recently prepared powder reference materials, not only the characterization of the property values of interest and their corresponding uncertainties, but also physical properties such as the particle size distribution must be well evaluated. Narrow particle size distributions are preferable than larger ones; as different size particles may have different analyte content. Due to this fact, the segregation of the coarse and the fine particles in a bottle may lead to inhomogeneity of the reference material, which should be avoided. In this study the element content as well as the particle size distribution of a mussel candidate reference material produced at IPEN-CNEN/SP was investigated. Instrumental Neutron Activation Analysis was applied to the determination of 15 elements in seven fractions of the material with different particle size distributions. Subsamples of the materials were irradiated simultaneously with elemental standards at the IEA-R1 research nuclear reactor and the induced gamma ray energies were measured in a hyperpure germanium detector. Three vials of the candidate reference material and three coarser fractions, collected during the preparation, were analyzed by Laser Diffraction Particle Analysis to determine the particle size distribution. Differences on element content were detected for fractions with different particle size distribution, indicating the importance of particle size control for biological reference materials. From the particle size analysis, Gaussian particle size distribution was observed for the candidate reference material with mean particle size μ = 94.6 ± 0.8 μm. (author)

  9. Preparation and certification of rice flour reference materials for trace elements analysis

    International Nuclear Information System (INIS)

    Cho, Kyung Haeng; Park, Chang Joon; Woo, Jin Choon; Suh, Jung Ki; Han, Myung Sub; Lee, Jong Hae

    1998-01-01

    Rice flour reference materials were prepared from the unpolished rice grown in korea and certified for elemental composition. The reference materials consist of two samples containing normal and high level. The reference material at elevated level was prepared by spiking to the normal rice flour six toxic elements of As, Cd, Cu, Cr, Hg, Pb with 1.0μg/g on a dry weight basis. Homogeneity of the prepared materials was evaluated through the determination of Ca, Cu, Fe, Mn, Zn by instrumental neutron activation analysis (INAA) and atomic absorption spectrometry (AAS). Small variance of elemental composition among inter-bottled samples assured homogeneity of the prepared materials. The materials were decomposed by high pres-sure digestion and microwave digestion method. INAA, AAS, inductively coupled plasma-atomic absorption spectrometry (ICP-AES), ICP-mass spectrometry (MS) and vapour generation techniques were employed to analyze the reference materials. From this independent analytical results, the certified or reference values are determined for As, Ca, Cd, Cr, Cu, Fe, Hg, K, Mg, Mn, Mo, Na, P, Pb, Se, Zn

  10. Materials Data Science: Current Status and Future Outlook

    Science.gov (United States)

    Kalidindi, Surya R.; De Graef, Marc

    2015-07-01

    The field of materials science and engineering is on the cusp of a digital data revolution. After reviewing the nature of data science and Big Data, we discuss the features of materials data that distinguish them from data in other fields. We introduce the concept of process-structure-property (PSP) linkages and illustrate how the determination of PSPs is one of the main objectives of materials data science. Then we review a selection of materials databases, as well as important aspects of materials data management, such as storage hardware, archiving strategies, and data access strategies. We introduce the emerging field of materials data analytics, which focuses on data-driven approaches to extract and curate materials knowledge from available data sets. The critical need for materials e-collaboration platforms is highlighted, and we conclude the article with a number of suggestions regarding the near-term future of the materials data science field.

  11. Micro-homogeneity evaluation of a bovine kidney candidate reference material

    Energy Technology Data Exchange (ETDEWEB)

    Castro, Liliana; Moreira, Edson G.; Vasconcellos, Marina B.A., E-mail: lcastroesnal@usp.br [Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN-SP), São Paulo, SP (Brazil)

    2017-07-01

    The minimum sample intake for which a reference material remains homogeneous is one of the parameters that must be estimated in the homogeneity assessment study of reference materials. In this work, Instrumental Neutron Activation Analysis was used to evaluate this quantity in a bovine kidney candidate reference material. The mass fractions of 9 inorganic constituents were determined in subsamples between 1 and 2 mg in order to estimate the relative homogeneity factor (HE) and the minimum sample mass to achieve 5% and 10% precision on a 95% confidence level. Results obtained for H{sub E} in all the analyzed elements were satisfactory. The estimated minimum sample intake was between 2 mg and 40 mg, depending on the element. (author)

  12. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    The crystallization, magnetic, mechanical and corrosion behaviour were studied for the prepared materials as a function of quenching rate from liquid to the solid state. Higher ... National Metallurgical Laboratory, Jamshedpur 831 007, India; Materials Science Centre, Indian Institute of Technology, Kharagpur 721 302, India ...

  13. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Author Affiliations. Sanjay Panwar1 D B Goel2 O P Pandey1. School of Physics and Materials Science, Thapar Institute of Engineering & Technology, Patiala 147 004, India; Department of Metallurgical and Materials Engineering, Indian Institute of Technology Roorkee, Roorkee 247 667, India ...

  14. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 33; Issue 4 ... Permittivity; polarization effects; strontium tartrate; thermal properties; dielectric properties. ... It is explained that crystallographic change due to polymorphic phase transition may be occurring in the material, besides the change due to loss of water ...

  15. Materials science challenges in paintings

    Science.gov (United States)

    Walter, Philippe; de Viguerie, Laurence

    2018-02-01

    Through the paintings of the old masters, we showcase how materials science today provides us with a vision of the processes involved in the creation of a work of art: the choice of materials, the painter's skill in handling these materials, and the perception of the finished work.

  16. Materials science challenges in paintings.

    Science.gov (United States)

    Walter, Philippe; de Viguerie, Laurence

    2018-01-23

    Through the paintings of the old masters, we showcase how materials science today provides us with a vision of the processes involved in the creation of a work of art: the choice of materials, the painter's skill in handling these materials, and the perception of the finished work.

  17. Characterization of nanoparticles as candidate reference materials

    International Nuclear Information System (INIS)

    Martins Ferreira, E.H.; Robertis, E. de; Landi, S.M.; Gouvea, C.P.; Archanjo, B.S.; Almeida, C.A.; Araujo, J.R. de; Kuznetsov, O.; Achete, C.A.

    2013-01-01

    We report the characterization of three different nanoparticles (silica, silver and multi-walled carbon nanotubes) as candidate reference material. We focus our analysis on the size distribution of those particles as measured by different microscopy techniques. (author)

  18. Bulletin of Materials Science | News

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 40; Issue 1 ... I D S – V b g branches in accordance with the SERS results and humidity responses. ... Ni˘gde University, Graduate School Natural and Applied Sciences, Ni˘gde 51240, ...

  19. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Key Lab for Green Processing and Functionalization of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, P.R. China; State Key Laboratory of Material Processing and Die and Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, P.R. China; Zhuxi ...

  20. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 31; Issue 6 .... modified with 4–12% 3,3′-bis(maleimidophenyl) phenylphosphine oxide and cured ... Study of effect of composition, irradiation and quenching on ionic ... Application of magnetron sputtering for producing bioactive ceramic coatings on implant materials.

  1. Materials science and engineering

    Energy Technology Data Exchange (ETDEWEB)

    Lesuer, D.R.

    1997-02-01

    During FY-96, work within the Materials Science and Engineering Thrust Area was focused on material modeling. Our motivation for this work is to develop the capability to study the structural response of materials as well as material processing. These capabilities have been applied to a broad range of problems, in support of many programs at Lawrence Livermore National Laboratory. These studies are described in (1) Strength and Fracture Toughness of Material Interfaces; (2) Damage Evolution in Fiber Composite Materials; (3) Flashlamp Envelope Optical Properties and Failure Analysis; (4) Synthesis and Processing of Nanocrystalline Hydroxyapatite; and (5) Room Temperature Creep Compliance of Bulk Kel-E.

  2. Materials Science and Technology Teachers Handbook

    Energy Technology Data Exchange (ETDEWEB)

    Wieda, Karen J.; Schweiger, Michael J.; Bliss, Mary; Pitman, Stan G.; Eschbach, Eugene A.

    2008-09-04

    The Materials Science and Technology (MST) Handbook was developed by Pacific Northwest National Laboratory, in Richland, Washington, under support from the U.S. Department of Energy. Many individuals have been involved in writing and reviewing materials for this project since it began at Richland High School in 1986, including contributions from educators at the Northwest Regional Education Laboratory, Central Washington University, the University of Washington, teachers from Northwest Schools, and science and education personnel at Pacific Northwest National Laboratory. Support for its development was also provided by the U.S. Department of Education. This introductory course combines the academic disciplines of chemistry, physics, and engineering to create a materials science and technology curriculum. The course covers the fundamentals of ceramics, glass, metals, polymers and composites. Designed to appeal to a broad range of students, the course combines hands-on activities, demonstrations and long term student project descriptions. The basic philosophy of the course is for students to observe, experiment, record, question, seek additional information, and, through creative and insightful thinking, solve problems related to materials science and technology. The MST Teacher Handbook contains a course description, philosophy, student learning objectives, and instructional approach and processes. Science and technology teachers can collaborate to build the course from their own interests, strengths, and experience while incorporating existing school and community resources. The course is intended to meet local educational requirements for technology, vocational and science education.

  3. Production and certification of reference materials

    International Nuclear Information System (INIS)

    Sarkis, Jorge Eduardo de S.; Kakazu, Mauricio H.; Hespanhol, Emilio Carlos B.; Martins, Elaine Arantes J.

    1996-01-01

    The reference materials used in analytical chemistry permit us to evaluate correctly the analytical producers as well as experimental set up. U 3 O 8 was produced at IPEN to be used as a secondary standard. We present the first results on U 3 O 8 and discuss the method, preparation, and characterization of that oxide. (author)

  4. Biological and environmental reference materials for trace elements, nuclides and organic microcontaminants

    International Nuclear Information System (INIS)

    Cortes Toro, E.; Parr, R.M.; Clements, S.A.

    1990-01-01

    This report has been produced from a database on analytical reference materials of biological and environmental origin, which is maintained at the International Atomic Energy Agency. It is an updated version of an earlier report, published in 1985, which focussed mainly on reference materials for trace elements. In the present version of the report, reference materials for trace elements still constitute the major part of the data; however, information is also now included on a number of other selected analytes of relevance to IAEA programmes, i.e. radionuclides, stable isotopes and organic microcontaminants. The database presently contains 2,694 analyte values for 117 analytes in 116 biological and 77 environmental (non-biological) reference materials produced by 20 different suppliers. Additional information on the cost of the material, the unit size supplied, (weight or volume), and the minimum weight of material recommended for analysis is also provided (if available to the authors). It is expected that this report will help analysts to select the reference material that matches as closely as possible, with respect to matrix type and concentrations of the analytes of interest, the ''real'' samples that are to be analysed. Refs, 12 tabs

  5. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 40; Issue 5. Electro-optical properties, decomposition pathways and the hydrostatic pressure-dependent behaviours of a double-cation hydrogen storage material of Al 3 Li 4 (BH 4 ) 13. MEHMET SIMSEK. Volume 40 Issue 5 September 2017 pp 907-915 ...

  6. IAEA programme of natural matrix reference materials for the determination of radionuclides

    International Nuclear Information System (INIS)

    Strachnov, V.; Valkovic, V.; LaRosa, J.; Dekner, R.; Zeisler, R.

    1993-01-01

    The International Atomic Energy Agency has been providing analytical quality control services (AQCS) to its Member States since the 1960's. The AQCS programme distributes reference materials (RMs), organizes intercomparison runs, and provides training courses for quality assurance in chemical analysis and radioactivity measurements of food, biological, environmental and marine materials. This paper focusses on those aspects of the subject dealing with reference materials and intercomparison runs for the determination of radionuclides. Nineteen natural matrix reference materials are available for the determination of radionuclides. Twelve new intercomparison and reference materials are in preparation or under consideration. The radionuclides of interest include: K-40, Mn-54, Co-60, Sr-90, Tc-99, Ru-106, Ba-133, Cs-134, Cs-137, Pb-210, Ra-226, Th-228, Th-232, Pu-238, Pu-239 + 240. (orig.)

  7. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 32; Issue 5 ... of CdTe nanoparticles before and after transfer from liquid phase to polystyrene ... Catalytic synthesis of ZnO nanorods on patterned silicon wafer—An optimum material for gas .... Hot-rolled, warm-rolled and heat treated alloys were examined using optical ...

  8. Nuclear Science References as a Tool for Data Evaluation

    International Nuclear Information System (INIS)

    Winchell, D.F.

    2005-01-01

    For several decades, the Nuclear Science References database has been maintained as a tool for data evaluators and for the wider pure and applied research community. This contribution will describe the database and recent developments in web-based access

  9. Proceedings of computational methods in materials science

    International Nuclear Information System (INIS)

    Mark, J.E. Glicksman, M.E.; Marsh, S.P.

    1992-01-01

    The Symposium on which this volume is based was conceived as a timely expression of some of the fast-paced developments occurring throughout materials science and engineering. It focuses particularly on those involving modern computational methods applied to model and predict the response of materials under a diverse range of physico-chemical conditions. The current easy access of many materials scientists in industry, government laboratories, and academe to high-performance computers has opened many new vistas for predicting the behavior of complex materials under realistic conditions. Some have even argued that modern computational methods in materials science and engineering are literally redefining the bounds of our knowledge from which we predict structure-property relationships, perhaps forever changing the historically descriptive character of the science and much of the engineering

  10. Preparation and certification of reference materials for the nuclear industry

    International Nuclear Information System (INIS)

    Wagner, J.F.

    1994-01-01

    CETAMA (Commission for the Establishment of Analytical Methods) of the Cea group is producing and certifying uranium and plutonium reference materials to meet the requirements of analytical laboratories in the nuclear industry. Reference materials are required at all stages in the fuel cycle: from extraction of uranium, purification, conversion, uranium enrichment, fuel fabrication until reprocessing of spent fuel, management and storage of waste. 3 tabs

  11. General and special engineering materials science. Vol. 1

    International Nuclear Information System (INIS)

    Ondracek, G.; Voehringer, O.

    1983-04-01

    The present report about general and special engineering materials science is the result of lectures given by the authors in two terms in 1982 at Instituto Balseiro, San Carlos de Bariloche, the graduated college of the Universidad de Cuyo and Comision Nacional de Energia Atomica, Republica Argentina. These lectures were organised in the frame of the project ''nuclear engineering'' (ARG/78/020) of the United Nations Development Program (UNDP) by the International Atomic Energy Agency (IAEA). Some chapters of the report are written in English, others in Spanish. The report is subdivided into three volumes: Volume I treats general engineering materials science in 4 capital chapters on the structure of materials, the properties of materials, materials technology and materials testing and investigation supplemented by a selected detailed chapter about elasticity plasticity and rupture mechanics. Volume II concerns special engineering materials science with respect to nuclear materials under normal reactor operation conditions including reactor clad and structural materials, nuclear fuels and fuel elements and nuclear waste as a materials viewpoint. Volume III - also concerning special engineering materials science - considers nuclear materials with respect to off-normal (''accident'') reactor operation conditions including nuclear materials in loss-of-coolant accidents and nuclear materials in core melt accidents. (orig.) [de

  12. Development studies of captopril certified reference material

    Directory of Open Access Journals (Sweden)

    Raquel Nogueira

    2011-06-01

    Full Text Available This paper describes the studies performed with the candidate Certified Reference Material (CRM of captopril, the first CRM of an active pharmaceutical ingredient (API in Brazil, including determination of impurities (organic, inorganic and volatiles, homogeneity testing, short- and long-term stability studies, calculation of captopril content using the mass balance approach, and estimation of the associated measurement uncertainty.Este artigo descreve os estudos realizados com o candidato a Material de Referência Certificado (MRC de captopril, primeiro MRC de fármacos no Brasil, incluindo a determinação de impurezas (orgânicas, inorgânicas e voláteis, testes de homogeneidade, testes de estabilidade de curta e longa duração, cálculo do teor de captopril por balanço de massa e estimativa da incerteza de medição associada ao valor certificado.

  13. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Articles written in Bulletin of Materials Science. Volume 27 Issue 5 October 2004 pp 417-420 Nuclear Related Materials. Irradiation of large area Mylar membrane and characterization of ... Effect of ion beam irradiation on metal particle doped polymer composites · N L Singh Sejal Shah Anjum Qureshi A Tripathi F Singh D K ...

  14. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 35; Issue 4. CuO/TiO2 nanocrystals grown on graphene as visible-light responsive photocatalytic hybrid materials. Yuan Fang Rijing Wang Guohua Jiang He Jin Yin Wang Xinke Sun Sheng Wang Tao Wang. Volume 35 Issue 4 August 2012 pp 495-499 ...

  15. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 24; Issue 6. Tailoring magnetic and dielectric properties of rubber ferrite composites containing mixed ferrites. M R Anantharaman K A Malini S Sindhu E M Mohammed S K Date S D Kulkarni P A Joy Philip Kurian. Magnetic Materials Volume 24 Issue 6 December 2001 ...

  16. Preparation and development of new Pu spike isotopic reference materials at IRMM

    Energy Technology Data Exchange (ETDEWEB)

    Jakopic, Rozle; Bauwens, Jeroen; Richter, Stephan; Sturm, Monika; Verbruggen, Andre; Wellum, Roger; Eykens, Roger; Kehoe, Frances; Kuehn, Heinz; Aregbe, Yetunde [Institute for Reference Materials and Measurements (IRMM) Joint Research Centre, European Commission, Geel, (Belgium)

    2011-12-15

    Reliable isotope measurements of nuclear material and the availability of reference materials with small uncertainties in the certified values are of great importance for safeguarding of nuclear materials. They provide the basis for a credible measurement system in the verification of states declarations of their nuclear activities. Worldwide needs for continued and improved Isotopic Reference Materials (IRM) are the main reason for developments of new nuclear reference materials at IRMM. Measurement capabilities of laboratories have evolved considerably over the years, along with progress in modern analytical techniques. Some plutonium reference materials, however, have been on the market for decades and they need to be re-certified to smaller uncertainties. Moreover, new reference materials with appropriately small uncertainties in the certified values need to be made available enabling measurement laboratories to reduce their combined measurement uncertainties. Such high quality plutonium isotopic reference materials are essential for laboratories striving to meet the International Target Values for Measurement Uncertainties in Safeguarding Nuclear Materials (ITVs). The preparation and the certification of such materials are demanding and challenging tasks that require state-of-theart measurement procedures and equipment. The Institute for Reference Materials and Measurements (IRMM) has repeatedly demonstrated its capabilities in plutonium analysis and represents one of the few institutes that supplies plutonium IRMs worldwide. An inter-calibration campaign has been set up at IRMM inter-linking selected plutonium spike IRMs. In the scope of this compatibility study, new reference materials have been prepared for Isotope Dilution Mass Spectrometry (IDMS) in nuclear fuel cycle measurements. A new series of large-sized dried (LSD) spikes, IRMM- 1027n, has been prepared and certified for plutonium and uranium amount content and isotopic composition. These mixed

  17. Standard reference materials analysis for MINT Radiocarbon Laboratory

    International Nuclear Information System (INIS)

    Noraishah Othman; Kamisah Alias; Nasasni Nasrul

    2004-01-01

    As a follow-up to the setting up of the MINT Radiocarbon Dating facility. an exercise on the IAEA standard reference materials was carried out. Radiocarbon laboratories frequently used these 8 natural samples to verify their systems. The materials were either pretreated or analysed directly to determine the activity of 14 C isotopes of the five samples expressed in % Modern (pMC) terms and to make recommendations on further use of these materials. We present the results of the five materials and discuss the analyses that were undertaken. (Author)

  18. Recommended reference materials for realization of physicochemical properties pressure-volume-temperature relationships

    CERN Document Server

    Herington, E F G

    1977-01-01

    Recommended Reference Materials for Realization of Physicochemical Properties presents recommendations of reference materials for use in measurements involving physicochemical properties, namely, vapor pressure; liquid-vapor critical temperature and critical pressure; orthobaric volumes of liquid and vapor; pressure-volume-temperature properties of the unsaturated vapor or gas; and pressure-volume-temperature properties of the compressed liquid. This monograph focuses on reference materials for vapor pressures at temperatures up to 770 K, as well as critical temperatures and critical pressures

  19. AQCS intercomparison runs, reference materials 1991

    International Nuclear Information System (INIS)

    1991-01-01

    The purpose of the Analytical Quality Control Services programme provided by the IAEA is to assist laboratories engaged in the analysis of nuclear, environmental, biological, and materials of marine origin for radionuclide, major, minor and trace elements, as well as stable isotopes using atomic and nuclear analytical techniques, to check the quality of their work. The determination of accuracy requires special procedures such as analysis to be carried out by as many different and independent methods, analysts and techniques as possible, control analysis with reference materials and participation in interlaboratory comparison studies. This document gives details of the specimens and samples which the IAEA intends to distribute in 1991. Tabs

  20. The development and certification of Standard Reference Materials (SRMs) to assess and ensure accurate measurement of Pb in the environment.

    Science.gov (United States)

    Fassett, J D; MacDonald, B S

    2001-08-01

    The National Institute of Standards and Technology (NIST) has had a major quality-assurance role in the federal effort to reduce lead poisoning of children in the United States through its mission of ensuring the accuracy of chemical measurements. NIST certifies reference materials (standard reference materials--SRMs) that are used to benchmark measurements by secondary and field methods of analysis--to ensure that decisions of great health and economic impact are soundly based on good measurement science. Over the past 10 years, in cooperation with the US Environmental Protection Agency (EPA), US Department of Housing and Urban Development (HUD), and the United States Geological Survey (USGS), NIST has prepared and certified SRMs for lead content in soil, indoor dust, and paint. The role of these materials in meeting regulatory and abatement needs is described and their certified values are summarized.

  1. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 39; Issue 1. Preparation of new thermoluminescent material ( 100 − x )B 2 O 3 –xLi 2 O: Cu 2 + for sensing and detection of radiation. Zeid A Alothman Tansir Ahamad Mu Naushad Saad M Alshehri. Volume 39 Issue 1 February 2016 pp 331-336 ...

  2. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 23; Issue 3. Optimization of growth of InGaAs/InP quantum wells using photoluminescence and secondary ion mass spectrometry. S Bhunia P Banerji T K Chaudhuri A R Haldar D N Bose Y Aparna M B Chettri B R Chakraborty. Semiconducting Materials Volume 23 ...

  3. FWP executive summaries: basic energy sciences materials sciences and engineering program (SNL/NM).

    Energy Technology Data Exchange (ETDEWEB)

    Samara, George A.; Simmons, Jerry A.

    2006-07-01

    This report presents an Executive Summary of the various elements of the Materials Sciences and Engineering Program which is funded by the Division of Materials Sciences and Engineering, Office of Basic Energy Sciences, U.S. Department of Energy at Sandia National Laboratories, New Mexico. A general programmatic overview is also presented.

  4. Perceptions of Crop Science Instructional Materials.

    Science.gov (United States)

    Elkins, D. M.

    1994-01-01

    A number of crop science instructors have indicated that there is a shortage of quality, current crop/plant science teaching materials, particularly textbooks. A survey instrument was developed to solicit information from teachers about the use and adequacy of textbooks, laboratory manuals, and videotapes in crop/plant science instruction. (LZ)

  5. Developing Potential New Reference Materials for Light Isotopes in Foodstuffs

    Science.gov (United States)

    Frew, Russell; Van Hale, Robert; Clarke, Dianne; Abrahim, Aiman; Resch, Christian; Mayr, Leopold; Cannavan, Andrew; Gröning, Manfred

    2013-04-01

    Measurements of subtle variations in stable isotope ratios provide the means for verifying food integrity in numerous ways. Adulterants usually have different isotopic composition so their presence in a food is readily detectable. Stable isotope measurements can also be used to determine the region of production of the food. In most cases the ability of stable isotope measurements to verify, or otherwise reject, the authenticity of the food is greatly enhanced by comparison of a result to a reference database. The more high-quality data in the database, the more statistical power is afforded by the comparison. A serious weakness at present is the lack of reference materials in food matrices available to the community. Thus researchers have to rely on in-house standards for calibration and quality assurance. The result is that there are numerous datasets published that may be internally consistent but it is exceedingly difficult to combine these datasets into a cohesive database. This is particularly important for measurements of the hydrogen isotopes. Here we present a survey of the stable isotope (^2H, ^13C and ^15N) composition of 12 Reference Materials from the International Atomic Energy Agency catalogue. All but one of these materials are plant matter and have been developed as reference materials for other applications such as radionuclide or trace element measurements. Thus they have been verified as suitable materials in terms of stability and homogeneity for those tests. The purpose of this work is to ascertain if they are similarly suitable as stable isotope reference materials. The results from our survey show that there is a wide range in elemental and isotopic composition among these materials. For example, the ^15N values range from-13.5‰ to +18.6‰ and the nitrogen elemental composition range is from 0.7% to 9.7%. The ^13C values range from -20‰ to -40‰ and the carbon elemental composition ranges from 15% to 47%. We are now in the process of

  6. Preparation and characterization of the fish reference material; Preparacao e caracterizacao de um material de referencia de peixe

    Energy Technology Data Exchange (ETDEWEB)

    Ulrich, Joao Cristiano

    2011-07-01

    The certified reference materials (CRMs) play an important role in obtaining measurement results traceable to the International System of Units, through an unbroken chain of comparisons. Thus, the demand for new certified reference materials (CRMs) increases every day in all areas of knowledge. The availability of reference materials, mainly in Brazil is still incipient, given that the demand far exceeds the available variety of these materials. The amount of certified reference materials available in the country is insufficient to meet the need of the scientific community and demands for development of new methodologies. Among the many areas in need of reference materials, we highlight the importance for the food trade balance for these products within the country. The certification of food products, intended both for export and for domestic consumption, requires analysis methods that provide precise and accurate results to ensure product quality. This paper describes the preparation and certification of a reference material in the fish matrix in mercury and methylmercury. The study brings together since the stage of material selection, preparation, development of homogeneity and stability studies and characterization. The certification was performed by means of measurements using two analytical techniques, flow injection analysis - cold vapor atomic absorption spectrometry (FIA-CV-AAS) and isotope dilution applied to mass spectrometry (IDMS), which is a primary method. In this work the standards of the ISO 30 (ABNT 30-34) and ISO Guide 35 was used as the basis for the preparation and characterization of the material. For the calculation of uncertainties was used the GUM and Eurachem guide. As a result, was produced and certified a lot of material in relation to the concentration of mercury (Hg = 0.271 {+-} 0.057 mg g{sup -1}) and methylmercury (MeHg = 0.245 {+-} 0.038 mg g{sup -1}), and informational values of lead and arsenic. (author)

  7. Determination of polybrominated diphenyl ethers in environmental standard reference materials

    Energy Technology Data Exchange (ETDEWEB)

    Stapleton, Heather M.; Schantz, Michele M.; Wise, Stephen A. [National Institute of Standards and Technology, Analytical Chemistry Division, Gaithersburg, MD (United States); Keller, Jennifer M.; Kucklick, John R. [National Institute of Standards and Technology, Analytical Chemistry Division, Hollings Marine Laboratory, Charleston, SC (United States); Leigh, Stefan D. [National Institute of Standards and Technology, Statistical Engineering Division, Gaithersburg, MD (United States)

    2007-04-15

    Standard reference materials (SRMs) are valuable tools in developing and validating analytical methods to improve quality assurance standards. The National Institute of Standards and Technology (NIST) has a long history of providing environmental SRMs with certified concentrations of organic and inorganic contaminants. Here we report on new certified and reference concentrations for 27 polybrominated diphenyl ether (PBDE) congeners in seven different SRMs: cod-liver oil, whale blubber, fish tissue (two materials), mussel tissue and sediment (two materials). PBDEs were measured in these SRMs, with the lowest concentrations measured in mussel tissue (SRM 1974b) and the highest in sediment collected from the New York/New Jersey Waterway (SRM 1944). Comparing the relative PBDE congener concentrations within the samples, we found the biota SRMs contained primarily tetrabrominated and pentabrominated diphenyl ethers, whereas the sediment SRMs contained primarily decabromodiphenyl ether (BDE 209). The cod-liver oil (SRM 1588b) and whale blubber (SRM 1945) materials were also found to contain measurable concentrations of two methoxylated PBDEs (MeO-BDEs). Certified and reference concentrations are reported for 12 PBDE congeners measured in the biota SRMs and reference values are available for two MeO-BDEs. Results from a sediment interlaboratory comparison PBDE exercise are available for the two sediment SRMs (1941b and 1944). (orig.)

  8. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 34; Issue 6 ... by microwave route and nature of anatase–rutile phase transition in nano TiO2 .... properties of AgPb10SbTe12 prepared by high pressure method .... the crystal field strength around Mn(V) such that a blue colour results for materials with small values of .

  9. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 23; Issue 4. Phase analysis and dielectric properties of ceramics in PbO–MgO–ZnO–Nb2O5 system: A comparative study of materials obtained by ceramic and molten salt synthesis routes. M Thirumal A K Ganguli. Ceramics Volume 23 Issue 4 August 2000 pp 255-261 ...

  10. Certification of a uranium-238 dioxide reference material for neutron dosimetry (EC nuclear reference material 501)

    International Nuclear Information System (INIS)

    Pauwels, J.; Lievens, F.; Ingelbrecht, C.

    1989-01-01

    Uranium-238 oxide of 99.999% isotopic and 99.98% chemical purity was transformed into dioxide spheres of nominal 0.5 and 1.0 mm diameter by gel precipitation and subsequent calcination under carbon dioxide and under argon containing 5% hydrogen at 1 125 K. The spheres were analysed by thermal ionization mass spectrometry, including isotope dilution, by gravimetry and by potentiometric titration. On the basis of these analyses, the uranium mass fraction was certified at 879.4 ± 2.8 g.kg -1 , and the 235 U/U - and 238 U/U abundances at 10.4 ± 0.5 mg.kg -1 and 999.9896 ± 0.0005 g.kg -1 , respectively. The material is intended to be used as a reference material in neutron metrology

  11. Characterize and Homogeneity Test of Phthalate and Phosphate Buffer as Reference Materials Candidate for Determination Ofacidic Value

    OpenAIRE

    Sujarwo, Sujarwo; Nuryatini, Nuryatini

    2013-01-01

    Measurement of pH is closely related to everyday life, such as in the area of environment, food and beverage, pharmaceuticals, and even metabolism process in human body. To ensure the quality of pH measurement, pH metershould be calibrated regularly and checked each time before used. Calibration and performance checking of pH meter requires traceable standard. The standard should be linked to CRM (Certified Reference Materials). Research Center for Chemistry - Indonesian Institute of Sciences...

  12. Preserving the Integrity of Citations and References by All Stakeholders of Science Communication.

    Science.gov (United States)

    Gasparyan, Armen Yuri; Yessirkepov, Marlen; Voronov, Alexander A; Gerasimov, Alexey N; Kostyukova, Elena I; Kitas, George D

    2015-11-01

    Citations to scholarly items are building bricks for multidisciplinary science communication. Citation analyses are currently influencing individual career advancement and ranking of academic and research institutions worldwide. This article overviews the involvement of scientific authors, reviewers, editors, publishers, indexers, and learned associations in the citing and referencing to preserve the integrity of science communication. Authors are responsible for thorough bibliographic searches to select relevant references for their articles, comprehend main points, and cite them in an ethical way. Reviewers and editors may perform additional searches and recommend missing essential references. Publishers, in turn, are in a position to instruct their authors over the citations and references, provide tools for validation of references, and open access to bibliographies. Publicly available reference lists bear important information about the novelty and relatedness of the scholarly items with the published literature. Few editorial associations have dealt with the issue of citations and properly managed references. As a prime example, the International Committee of Medical Journal Editors (ICMJE) issued in December 2014 an updated set of recommendations on the need for citing primary literature and avoiding unethical references, which are applicable to the global scientific community. With the exponential growth of literature and related references, it is critically important to define functions of all stakeholders of science communication in curbing the issue of irrational and unethical citations and thereby improve the quality and indexability of scholarly journals.

  13. Preserving the Integrity of Citations and References by All Stakeholders of Science Communication

    Science.gov (United States)

    Yessirkepov, Marlen; Voronov, Alexander A.; Gerasimov, Alexey N.; Kostyukova, Elena I.; Kitas, George D.

    2015-01-01

    Citations to scholarly items are building bricks for multidisciplinary science communication. Citation analyses are currently influencing individual career advancement and ranking of academic and research institutions worldwide. This article overviews the involvement of scientific authors, reviewers, editors, publishers, indexers, and learned associations in the citing and referencing to preserve the integrity of science communication. Authors are responsible for thorough bibliographic searches to select relevant references for their articles, comprehend main points, and cite them in an ethical way. Reviewers and editors may perform additional searches and recommend missing essential references. Publishers, in turn, are in a position to instruct their authors over the citations and references, provide tools for validation of references, and open access to bibliographies. Publicly available reference lists bear important information about the novelty and relatedness of the scholarly items with the published literature. Few editorial associations have dealt with the issue of citations and properly managed references. As a prime example, the International Committee of Medical Journal Editors (ICMJE) issued in December 2014 an updated set of recommendations on the need for citing primary literature and avoiding unethical references, which are applicable to the global scientific community. With the exponential growth of literature and related references, it is critically important to define functions of all stakeholders of science communication in curbing the issue of irrational and unethical citations and thereby improve the quality and indexability of scholarly journals. PMID:26538996

  14. Bulletin of Materials Science | News

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 33; Issue 2 ... films deposited by rf magnetron sputtering using a high quality ceramic target ... Critical shear stress produced by interaction of edge dislocation with nanoscale inhomogeneity ... production cost limiting zircon usage as a raw material at an industrial scale.

  15. 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

  16. Biological materials: a materials science approach.

    Science.gov (United States)

    Meyers, Marc A; Chen, Po-Yu; Lopez, Maria I; Seki, Yasuaki; Lin, Albert Y M

    2011-07-01

    The approach used by Materials Science and Engineering is revealing new aspects in the structure and properties of biological materials. The integration of advanced characterization, mechanical testing, and modeling methods can rationalize heretofore unexplained aspects of these structures. As an illustration of the power of this methodology, we apply it to biomineralized shells, avian beaks and feathers, and fish scales. We also present a few selected bioinspired applications: Velcro, an Al2O3-PMMA composite inspired by the abalone shell, and synthetic attachment devices inspired by gecko. Copyright © 2010 Elsevier Ltd. All rights reserved.

  17. Certification of a copper metal reference material for neutron dosimetry. (EC nuclear reference material 522)

    International Nuclear Information System (INIS)

    Ingelbrecht, C.; Pauwels, J.; Lievens, F.

    1993-01-01

    Copper metal of ≥ 99.995% nominal purity in the form of 0.1 and 1.0 mm thick foil and 0.5 and 1.0 mm diameter wire has been certified for its cobalt and silver mass fractions. The certified values are -1 and 0.95 ± 0.04 mg.kg -1 respectively, based on 66 results for cobalt and 88 results for silver obtained by nine laboratories using three methods. This reference material, EC-NRM 522, is intended for reactor neutron dosimetry. (authors). 14 refs., 1 annexe, 10 tabs., 2 figs

  18. Bulletin of Materials Science | News

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 26; Issue 5. Issue front cover thumbnail. Volume 26, Issue 5. August 2003, pages 461-568. pp 461-464 Sensor Materials. Preparation, characterization and dielectric behaviour of some yttrium doped strontium stannates · P K Bajpai Kuldeep Ratre Mukul Pastor T P ...

  19. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    , Romania; 'Alexandru Ioan Cuza' University, Research Center on Advanced Materials and Technologies, Sciences Department, 11 Carol I Blvd., 700506 Iasi, Romania; Photonics Laboratory, Angers University, 2, Bd. Lavoisier, 49045 Angers, ...

  20. Materials Science and the Problem of Garbage

    Science.gov (United States)

    McPherson, Heather

    2016-01-01

    Materials science--the science of stuff--has made our lives better by making it possible for manufacturers to supply us with products. Students have misconceptions about materials use. Many may think using bottled water, for example, is harmless because they recycle the plastic empties, but they fail to consider the resources and energy used to…

  1. U. S. programs on reference and advanced cladding/duct materials

    International Nuclear Information System (INIS)

    Bennett, J.W.; Holmes, J.J.; Laidler, J.J.

    1977-05-01

    Two coordinated national programs are presently in place in the United States for development of reference and advanced cladding and duct alloys for near-term and long-term LMFBR applications. A number of government, industrial and university laboratories are active participants in these two ERDA-sponsored programs. The programs are administered by ERDA through a task group organization, with each task group representing a particular technical activity and the membership of the task group drawn from among the laboratories with active involvement in that activity. Technical coordination of the two programs is provided by the Hanford Engineering Development Laboratory. The National Reference Cladding and Duct Program is charged with the responsibility for development of the required technology to permit full utilization of the reference material, 20 percent cold-worked Type 316 stainless steel, in early LMFBR core applications. The current schedule calls for full evaluation of FFTF-related design base data prior to full-power operation of FFTF in early 1980, followed by a confirmation in early 1983 of reference material performance capabilities for initial-core CRBRP applications. Comprehensive evaluation of reference material performance to commercial plant goal fluence levels will be complete by 1985. The National Advanced Alloy Development Program was instituted in 1974 with the objective to develop, by 1986, advanced cladding and duct materials compatible with advanced fuel systems having peak burnup capabilities up to 150 MWD/kg and doubling times of 15 years or less. Screening of a large number of potential alloys was completed in mid-1975, and there are presently 16 candidate alloys under active investigation

  2. Particle size studies in the preparation of AQCS reference materials

    International Nuclear Information System (INIS)

    Fajgelj, A.; Zeisler, R.; Benesch, T.; Dekner, R.

    1994-01-01

    Particle size determination is one of the important steps in the characterization of physical properties of each particulate material. However, particle size distribution effects also a chemical composition of the material in terms of homogeneity and representativeness of the sample, as well as allows or not a possible sub-sampling of the material. All this is of great importance in the preparation of reference materials for which the chemical composition and physical properties have to be extremely well characterized. In the present paper we intend to present same efforts which have been done by Analytical Quality Control Services (AQCS) of the International Atomic Energy Agency (IAEA) in the field of particle size determination in the production of reference materials. The Malvern product MasterSizer X, based on laser light scattering is used for this purpose and the technique is also shortly discussed. (author)

  3. Certified reference materials of trace elements in water

    Indian Academy of Sciences (India)

    Many decisions regarding the suitability of material/products are based on the ... In the present scenario of globalization of economy, use of certified reference ... our national accreditation body, National Accreditation Board for Testing and ...

  4. The development and evaluation of reference materials for food microbiology

    NARCIS (Netherlands)

    Veld, in 't P.

    1998-01-01

    Since 1986 the National Institute of Public Health and the Environment (RIVM) has worked on the development and evaluation of microbiological reference materials (RMs) with support from the European Communities Bureau of Reference (BCR), now called Standards Measurement and Testing

  5. Materials Sciences programs, Fiscal Year 1983

    International Nuclear Information System (INIS)

    1983-09-01

    The Materials Sciences Division constitutes one portion of a wide range of research supported by the DOE Office of Basic Energy Sciences. This report contains a listing of research underway in FY 1983 together with a convenient index to the program

  6. Reference materials for nondestructive assay of special nuclear material. Volume 1. Uranium oxide plus graphite powder

    International Nuclear Information System (INIS)

    Sprinkle, J.K.; Likes, R.N.; Parker, J.L.; Smith, H.A.

    1983-10-01

    This manual describes the fabrication of reference materials for use in gamma-ray-based nondestructive assay of low-density uranium-bearing samples. The sample containers are 2-l bottles. The reference materials consist of small amounts of UO 2 spread throughout a graphite matrix. The 235 U content ranges from 0 to 100 g. The manual also describes the far-field assay procedure used with low-resolution detectors

  7. Materials and Chemical Sciences Division annual report, 1987

    International Nuclear Information System (INIS)

    1988-07-01

    Research programs from Lawrence Berkeley Laboratory in materials science, chemical science, nuclear science, fossil energy, energy storage, health and environmental sciences, program development funds, and work for others is briefly described

  8. Materials and Chemical Sciences Division annual report, 1987

    Energy Technology Data Exchange (ETDEWEB)

    1988-07-01

    Research programs from Lawrence Berkeley Laboratory in materials science, chemical science, nuclear science, fossil energy, energy storage, health and environmental sciences, program development funds, and work for others is briefly described. (CBS)

  9. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 39; Issue 7 ... pulse electrodeposition with ultrasound agitation from nickelWatts-type bath. ... The results showed that wear resistance increased with increase in duty cycle and frequency.

  10. Assessment of international reference materials for isotope-ratio analysis (IUPAC Technical Report)

    Science.gov (United States)

    Brand, Willi A.; Coplen, Tyler B.; Vogl, Jochen; Rosner, Martin; Prohaska, Thomas

    2014-01-01

    Since the early 1950s, the number of international measurement standards for anchoring stable isotope delta scales has mushroomed from 3 to more than 30, expanding to more than 25 chemical elements. With the development of new instrumentation, along with new and improved measurement procedures for studying naturally occurring isotopic abundance variations in natural and technical samples, the number of internationally distributed, secondary isotopic reference materials with a specified delta value has blossomed in the last six decades to more than 150 materials. More than half of these isotopic reference materials were produced for isotope-delta measurements of seven elements: H, Li, B, C, N, O, and S. The number of isotopic reference materials for other, heavier elements has grown considerably over the last decade. Nevertheless, even primary international measurement standards for isotope-delta measurements are still needed for some elements, including Mg, Fe, Te, Sb, Mo, and Ge. It is recommended that authors publish the delta values of internationally distributed, secondary isotopic reference materials that were used for anchoring their measurement results to the respective primary stable isotope scale.

  11. Materials science with SR using x-ray imaging

    International Nuclear Information System (INIS)

    Kuriyama, Masao

    1990-01-01

    Some examples of applications of synchrotron radiation to materials science demonstrate the importance of microstructure information within structural as well as functional materials in order to control their properties and quality as designed for industrial purposes. To collect such information, x-ray imaging in quasi real time is required in either the microradiographic mode or the diffraction (in transmission) mode. New measurement technologies based on imaging are applied to polycrystalline materials, single crystal materials and multilayered device materials to illustrate what kind of synchrotron radiation facility is most desirable for materials science and engineering. (author)

  12. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Author Affiliations. Xiaoming Liao1 Hongyang Zhu1 Guangfu Yin1 Zhongbing Huang1 Yadong Yao1 Xianchun Chen1. College of Materials Science and Engineering, Sichuan University, Chengdu 610064, P.R. of China ...

  13. Certification of biological reference materials by instrumental neutron activation analysis

    International Nuclear Information System (INIS)

    Lanjewar, Mamata R.; Lanjewar, R.B.

    2014-01-01

    A multielemental instrumental neutron activation analysis (INAA) method by short and long irradiation has been employed for the determination of 21 minor and trace elements in two standard Reference Materials P-RBF and P-WBF from Institute of Radioecology and Applied Nuclear Techniques ,Czechoslovakia. Also some biological standards such as Bowen's kale, cabbage leaves (Poland) including wheat and rice flour samples of local origin were analysed. It is suggested that INAA is an ideal method for the certification of Reference Materials of Biological Matrices. (author)

  14. Reference material for radionuclides in sediment IAEA-384 (Fangataufa Lagoon sediment)

    DEFF Research Database (Denmark)

    Povinec, P.P.; Pham, M.K.; Sanchez-Cabeza, J.A.

    2007-01-01

    A reference material designed for the determination of anthropogenic and natural radionuclides in sediment, IAEA-384 (Fangataufa Lagoon sediment), is described and the results of certification are presented. The material has been certified for 8 radionuclides (K-40, Co-60, Eu-155, Th-230, U-238, ...... management of radioanalytical laboratories engaged in the analysis of radionuclides in the environment, as well as for the development and validation of analytical methods and for training purposes. The material is available from IAEA in 100 g units.......A reference material designed for the determination of anthropogenic and natural radionuclides in sediment, IAEA-384 (Fangataufa Lagoon sediment), is described and the results of certification are presented. The material has been certified for 8 radionuclides (K-40, Co-60, Eu-155, Th-230, U-238, Pu......-238, Pu239+240 and Am-241). Information values are given for 12 radionuclides (Sr-90, Cs-137, Pb-210 (Po-210), Ra-226, Ra-228, Th-232, U-234, U-235, Pu-239, Pu-240 and Pu-241). Less reported radionuclides include Th-228, U-236, Np-239 and Pu-242. The reference material may be used for quality...

  15. Normalization Methods and Selection Strategies for Reference Materials in Stable Isotope Analyes. Review

    Energy Technology Data Exchange (ETDEWEB)

    Skrzypek, G. [West Australian Biogeochemistry Centre, John de Laeter Centre of Mass Spectrometry, School of Plant Biology, University of Western Australia, Crawley (Australia); Sadler, R. [School of Agricultural and Resource Economics, University of Western Australia, Crawley (Australia); Paul, D. [Department of Civil Engineering (Geosciences), Indian Institute of Technology Kanpur, Kanpur (India); Forizs, I. [Institute for Geochemical Research, Hungarian Academy of Sciences, Budapest (Hungary)

    2013-07-15

    Stable isotope ratio mass spectrometers are highly precise, but not accurate instruments. Therefore, results have to be normalized to one of the isotope scales (e.g., VSMOW, VPDB) based on well calibrated reference materials. The selection of reference materials, numbers of replicates, {delta}-values of these reference materials and normalization technique have been identified as crucial in determining the uncertainty associated with the final results. The most common normalization techniques and reference materials have been tested using both Monte Carlo simulations and laboratory experiments to investigate aspects of error propagation during the normalization of isotope data. The range of observed differences justifies the need to employ the same sets of standards worldwide for each element and each stable isotope analytical technique. (author)

  16. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Author Affiliations. Ankur Jain1 R K Jain1 Shivani Agarwal1 I P Jain1. Material Science Laboratory, Centre for Non-Conventional Energy Resources, 14, Vigyan Bhawan, University of Rajasthan, Jaipur 302 004, India ...

  17. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 34; Issue 4 ... has a dielectric anomaly of ferroelectric to paraelectric type at 198°C, and exhibits ... that the compound has negative temperature coefficient of resistance (NTCR) behaviour.

  18. Science reference room index to physical, chemical and other property data

    CERN Document Server

    This nice reference guide from Arizona State University's Noble Science and Engineering Library amounts to "an index to selected library and internet resources that contain chemical, physical, thermodynamic, mechanical, toxicological, and safety data with a list of suggested standard reference sources that may be found in most technical libraries, this reference guide goes on to include a vast reservoir of alphabetically listed library books and Internet sites where a user may locate specific information. From Abrasion Resistance to Yield Strength data, this index is quite comprehensive.

  19. Newly developed standard reference materials for organic contaminant analysis

    Energy Technology Data Exchange (ETDEWEB)

    Poster, D.; Kucklick, J.; Schantz, M.; Porter, B.; Wise, S. [National Inst. of Stand. and Technol., Gaithersburg, MD (USA). Center for Anal. Chem.

    2004-09-15

    The National Institute of Standards and Technology (NIST) has issued a number of Standard Reference Materials (SRM) for specified analytes. The SRMs are biota and biological related materials, sediments and particle related SRMs. The certified compounds for analysis are polychlorinated biphenyls (PCB), polycylic aromatic hydrocarbons (PAH) and their nitro-analogues, chlorinated pesticides, methylmercury, organic tin compounds, fatty acids, polybrominated biphenyl ethers (PBDE). The authors report on origin of materials and analytic methods. (uke)

  20. Biological and environmental reference materials in neutron activation analysis work

    International Nuclear Information System (INIS)

    Guinn, V.P.; Gavrilas, M.

    1990-01-01

    The great usefulness of reference materials, especially ones of certified elemental composition, is discussed with particular attention devoted to their use in instrumental neutron activation analysis (INAA) work. Their use, including both certified and uncertified values, in calculations made by the INAA Advance Prediction Computer Program (APCP) is discussed. The main features of the APCP are described, and mention is made of the large number of reference materials run on the APCP (including the new personal computer version of the program), with NBS Oyster Tissue SRM-1566 used as the principal examle. (orig.)

  1. On criteria for examining analysis quality with standard reference material

    International Nuclear Information System (INIS)

    Yang Huating

    1997-01-01

    The advantages and disadvantages and applicability of some criteria for examining analysis quality with standard reference material are discussed. The combination of the uncertainties of the instrument examined and the reference material should be determined on the basis of specific situations. Without the data of the instrument's uncertainty, it would be applicable to substitute the standard deviation multiplied by certain times for the uncertainty. The result of the examining should not result in more error reported in routine measurements than it really is. Over strict examining should also be avoided

  2. Lawrence Livermore National Laboratory Working Reference Material Production Pla

    Energy Technology Data Exchange (ETDEWEB)

    Wong, Amy; Thronas, Denise; Marshall, Robert

    1998-11-04

    This Lawrence Livermore National Laboratory (LLNL) Working Reference Material Production Plan was written for LLNL by the Los Alamos National Laboratory to address key elements of producing seven Pu-diatomaceous earth NDA Working Reference Materials (WRMS). These WRMS contain low burnup Pu ranging in mass from 0.1 grams to 68 grams. The composite Pu mass of the seven WRMS was designed to approximate the maximum TRU allowable loading of 200 grams Pu. This document serves two purposes: first, it defines all the operations required to meet the LLNL Statement of Work quality objectives, and second, it provides a record of the production and certification of the WRMS. Guidance provided in ASTM Standard Guide C1128-89 was used to ensure that this Plan addressed all the required elements for producing and certifying Working Reference Materials. The Production Plan was written to provide a general description of the processes, steps, files, quality control, and certification measures that were taken to produce the WRMS. The Plan identifies the files where detailed procedures, data, quality control, and certification documentation and forms are retained. The Production Plan is organized into three parts: a) an initial section describing the preparation and characterization of the Pu02 and diatomaceous earth materials, b) middle sections describing the loading, encapsulation, and measurement on the encapsulated WRMS, and c) final sections describing the calculations of the Pu, Am, and alpha activity for the WRMS and the uncertainties associated with these quantities.

  3. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 33; Issue 1. Structure, optical and thermal decomposition characters of LDPE graft copolymers synthesized by gamma irradiation ... Keywords. Gamma irradiation; graft copolymerization; spectroscopic analysis; XRD; kinetics of thermal decomposition; activation energy.

  4. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 40; Issue 4 ... Nacional de Investigaciones Científicas y Técnicas), A4408FVY Salta, Argentina; Fac. Ingeniería, Universidad Nacional de Salta, A4408FVY Salta, Argentina; Fac.

  5. Proceedings of the international conference on material science: abstract volume

    International Nuclear Information System (INIS)

    2013-01-01

    Materials Science is an interdisciplinary field applying the properties of matter to various areas of science and engineering. This scientific field investigates the relationship between the structure of materials at atomic or molecular scales and their macroscopic properties. In the recent years, materials science has been propelled to the forefront at many universities and research institutions due to the significant advancement on nanoscience and nanotechnology. ICMS-2013 will cover a wide range of interdisciplinary and current research topics related to material science. Research on advanced materials includes nanomaterials, bio-nanomaterials, zero bandgap materials, composites, surface engineering, tissue engineering and biomaterials etc. These materials have numerous applications in electronics, biotechnology, medicine and energy harvesting. The importance of nano-science and nanotechnology has been well documented by both industrial and academic communities worldwide. It is believed that breakthroughs in nano-science and technology will change all aspects of human life in such diverse areas as, electronic devices, energy, biomedicine, sensing, environment, and security etc. Papers relevant to INIS are indexed separately

  6. Lasers in materials science

    CERN Document Server

    Ossi, Paolo; Zhigilei, Leonid

    2014-01-01

    This book covers various aspects of lasers in materials science, including a comprehensive overview on basic principles of laser-materials interactions and applications enabled by pulsed laser systems.  The material is organized in a coherent way, providing the reader with a harmonic architecture. While systematically covering the major current and emerging areas of lasers processing applications, the Volume provides examples of targeted modification of material properties achieved through careful control of the processing conditions and laser irradiation parameters. Special emphasis is placed on specific strategies aimed at nanoscale control of material structure and properties to match the stringent requirements of modern applications.  Laser fabrication of novel nanomaterials, which expands to the domains of photonics, photovoltaics, sensing, and biomedical applications, is also discussed in the Volume. This book assembles chapters based on lectures delivered at the Venice International School on Lasers...

  7. Materials science experiments in space

    Science.gov (United States)

    Gelles, S. H.; Giessen, B. C.; Glicksman, M. E.; Margrave, J. L.; Markovitz, H.; Nowick, A. S.; Verhoeven, J. D.; Witt, A. F.

    1978-01-01

    The criteria for the selection of the experimental areas and individual experiments were that the experiment or area must make a meaningful contribution to the field of material science and that the space environment was either an absolute requirement for the successful execution of the experiment or that the experiment can be more economically or more conveniently performed in space. A number of experimental areas and individual experiments were recommended for further consideration as space experiments. Areas not considered to be fruitful and others needing additional analysis in order to determine their suitability for conduct in space are also listed. Recommendations were made concerning the manner in which these materials science experiments are carried out and the related studies that should be pursued.

  8. A revision in hydrogen isotopic composition of USGS42 and USGS43 human-hair stable isotopic reference materials for forensic science

    Science.gov (United States)

    Coplen, Tyler B.; Qi, Haiping

    2016-01-01

    The hydrogen isotopic composition (δ2HVSMOW-SLAP) of USGS42 and USGS43 human hair stable isotopic reference materials, normalized to the VSMOW (Vienna-Standard Mean Ocean Water)–SLAP (Standard Light Antarctic Precipitation) scale, was originally determined with a high temperature conversion technique using an elemental analyzer (TC/EA) with a glassy carbon tube and glassy carbon filling and analysis by isotope-ratio mass spectrometer (IRMS). However, the TC/EA IRMS method can produce inaccurate δ2HVSMOW-SLAPresults when analyzing nitrogen-bearing organic substances owing to the formation of hydrogen cyanide (HCN), leading to non-quantitative conversion of a sample into molecular hydrogen (H2) for IRMS analysis. A single-oven, chromium-filled, elemental analyzer (Cr-EA) coupled to an IRMS substantially improves the measurement quality and reliability of hydrogen isotopic analysis of hydrogen- and nitrogen-bearing organic material because hot chromium scavenges all reactive elements except hydrogen. USGS42 and USGS43 human hair isotopic reference materials have been analyzed with the Cr-EA IRMS method, and the δ2HVSMOW-SLAP values of their non-exchangeable hydrogen fractions have been revised:where mUr = 0.001 = ‰. On average, these revised δ2HVSMOW-SLAP values are 5.7 mUr more positive than those previously measured. It is critical that readers pay attention to the δ2HVSMOW-SLAP of isotopic reference materials in publications as they may need to adjust the δ2HVSMOW–SLAP measurement results of human hair in previous publications to ensure all results are on the same isotope-delta scale.

  9. Fresh biological reference materials. Use in inter laboratory studies and as CRMs

    International Nuclear Information System (INIS)

    De Boer, J.

    1999-01-01

    Biological reference materials were prepared and packed in tins and glass jars to be used in inter laboratory studies on chlorobiphenyls and organochlorine pesticides, and trace metals, respectively. The materials were homogenised, sterilised and packed as wet tissue, which is unique for the purpose of inter laboratory studies and offers the advantage of studying the extraction and destruction steps of the analytical methods. In addition to their use in inter laboratory studies, some materials have been prepared or are being prepared as certified reference material for chlorobiphenyl analysis. (author)

  10. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 38; Issue 4 ... The energy diagram shows the feasibility of La2CuO4 for the H2 evolution under visible light. ... Laboratory of Storage and Valorization of Renewable Energies, Faculty of ...

  11. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 40; Issue 5. Optical spectroscopy of rare earth-doped oxyfluoro-tellurite glasses to probe local environment. GAJANAN V HONNAVAR K P RAMESH ... Keywords. Tellurite glasses; Raman spectroscopy; photoluminscence; Stark level splitting; UV visible spectroscopy.

  12. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    College of Medicine and Dentistry, James Cook University, Cairns 4878, Australia; Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China; Institute of Dental Materials, Wenzhou Medical University, Wenzhou ...

  13. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    ... Bulletin of Materials Science; Volume 29; Issue 2. Mechanism of cube grain nucleation during recrystallization of deformed commercial purity aluminium. K T Kashyap R George. Nucleation Studies Volume 29 Issue ... Keywords. Recrystallization; cube texture; commercial purity aluminium; differential stored energy model.

  14. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Harnessing renewable solar energy through different technologies is greatly dependent on the advancement of solar grade materials' science and engineering. In this article, the prominent solar energy technologies, namely solarphotovoltaic and concentrated solar power and other relevant technologies, and aspects ...

  15. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Articles written in Bulletin of Materials Science. Volume ... Preparation and characterization of magnesium–aluminium–silicate glass ceramics ... Preparation and studies of some thermal, mechanical and optical properties of .... Surface degradation behaviour of sodium borophosphate glass in aqueous media: Some studies.

  16. Materials Science with Ion Beams

    CERN Document Server

    Bernas, Harry

    2010-01-01

    This book introduces materials scientists and designers, physicists and chemists to the properties of materials that can be modified by ion irradiation or implantation. These techniques can help design new materials or to test modified properties; novel applications already show that ion-beam techniques are complementary to others, yielding previously unattainable properties. Also, ion-beam interactions modify materials at the nanoscale, avoiding the often detrimental results of lithographic or chemical techniques. Here, the effects are related to better-known quasi-equilibrium thermodynamics, and the consequences to materials are discussed with concepts that are familiar to materials science. Examples addressed concern semiconductor physics, crystal and nanocluster growth, optics, magnetism, and applications to geology and biology.

  17. Setting science free from materialism.

    Science.gov (United States)

    Sheldrake, Rupert

    2013-01-01

    Contemporary science is based on the claim that all reality is material or physical. There is no reality but material reality. Consciousness is a by-product of the physical activity of the brain. Matter is unconscious. Evolution is purposeless. This view is now undergoing a credibility crunch. The biggest problem of all for materialism is the existence of consciousness. Panpsychism provides a way forward. So does the recognition that minds are not confined to brains. Copyright © 2013 Elsevier Inc. All rights reserved.

  18. 2004 research briefs :Materials and Process Sciences Center.

    Energy Technology Data Exchange (ETDEWEB)

    Cieslak, Michael J.

    2004-01-01

    This report is the latest in a continuing series that highlights the recent technical accomplishments associated with the work being performed within the Materials and Process Sciences Center. Our research and development activities primarily address the materials-engineering needs of Sandia's Nuclear-Weapons (NW) program. In addition, we have significant efforts that support programs managed by the other laboratory business units. Our wide range of activities occurs within six thematic areas: Materials Aging and Reliability, Scientifically Engineered Materials, Materials Processing, Materials Characterization, Materials for Microsystems, and Materials Modeling and Simulation. We believe these highlights collectively demonstrate the importance that a strong materials-science base has on the ultimate success of the NW program and the overall DOE technology portfolio.

  19. Initiative to manufacture and characterize Baculovirus Reference Material

    NARCIS (Netherlands)

    Kamen, A.; Aucoin, M.; Merten, O.W.; Alves, P.C.M.; Hashimoto, Y.; Airenne, K.; Hu, Y.C.; Mezzina, M.; Oers, van M.M.

    2011-01-01

    This letter to the editor brings to the attention of researchers an initiative to develop a baculovirus reference material repository. To be successful this initiative needs the support of a broad panel of researchers working with baculovirus vectors for recombinant protein production and gene

  20. Assessment of a dynamic reference material for calibration of full-field measurement systems

    Science.gov (United States)

    Hack, Erwin; Feligiotti, Mara; Davighi, Andrea; Whelan, Maurice; Wang, Weizhuo V.; Patterson, Eann A.

    2012-10-01

    For holography and speckle interferometry the calibration of the sensitivity is a must, because illumination and observation directions vary across the field of view. A numerical estimate or a static calibration using rigid body motions is standard, and reference materials exist for static strain calibration. Recently, reference materials for the dynamic calibration of optical instruments of displacement and strain measurement were designed and prototypes were manufactured in the European FP7 project ADVISE. We review the properties of the reference material and the concept of traceability for the field of displacement values by using a calibrated single point transducer. The mode shape is assessed using out-of-plane DSPI, Finite Element Analysis as well as analytic solutions of the plate vibration. We present measurements using stroboscopic DSPI on the reference material under acoustic excitation and compare the measured mode shapes to the ones predicted by FE analysis. We apply different comparison methodologies based on point-by-point deviations and on decomposition of the mode shapes into a set of orthogonal basis functions. The latter method is well suited to assess stability and reproducibility of a mode shape. Finally, the deviations are used to estimate the reference material uncertainty which is an essential parameter for determining the calibration uncertainty. Uncertainty contributions of the DSPI set-up are taken into account. To conclude, the application area and limitations of the reference material are discussed.

  1. Steels from materials science to structural engineering

    CERN Document Server

    Sha, Wei

    2013-01-01

    Steels and computer-based modelling are fast growing fields in materials science as well as structural engineering, demonstrated by the large amount of recent literature. Steels: From Materials Science to Structural Engineering combines steels research and model development, including the application of modelling techniques in steels.  The latest research includes structural engineering modelling, and novel, prototype alloy steels such as heat-resistant steel, nitride-strengthened ferritic/martensitic steel and low nickel maraging steel.  Researchers studying steels will find the topics vital to their work.  Materials experts will be able to learn about steels used in structural engineering as well as modelling and apply this increasingly important technique in their steel materials research and development. 

  2. A Reference Guide for Cryogenic Properties of Materials

    Energy Technology Data Exchange (ETDEWEB)

    Weisend, John G

    2003-09-16

    A thorough knowledge of the behavior of materials at cryogenic temperatures is critical for the design of successful cryogenic systems. Over the past 50 years, a tremendous amount of material properties at cryogenic temperatures have been measured and published. This guide lists resources for finding these properties. It covers online databases, computer codes, conference proceedings, journals, handbooks, overviews and monographs. It includes references for finding reports issued by government laboratories and agencies. Most common solids and fluids used in cryogenics are covered.

  3. Uranium tailings reference materials

    International Nuclear Information System (INIS)

    Smith, C.W.; Steger, H.F.; Bowman, W.S.

    1984-01-01

    Samples of uranium tailings from Bancroft and Elliot Lake, Ontario, and from Beaverlodge and Rabbit Lake, Saskatchewan, have been prepared as compositional reference materials at the request of the National Uranium Tailings Research Program. The four samples, UTS-1 to UTS-4, were ground to minus 104 μm, each mixed in one lot and bottled in 200-g units for UTS-1 to UTS-3 and in 100-g units for UTS-4. The materials were tested for homogeneity with respect to uranium by neutron activation analysis and to iron by an acid-decomposition atomic absorption procedure. In a free choice analytical program, 18 laboratories contributed results for one or more of total iron, titanium, aluminum, calcium, barium, uranium, thorium, total sulphur, and sulphate for all four samples, and for nickel and arsenic in UTS-4 only. Based on a statistical analysis of the data, recommended values were assigned to all elements/constituents, except for sulphate in UTS-3 and nickel in UTS-4. The radioactivity of thorium-230, radium-226, lead-210, and polonium-210 in UTS-1 to UTS-4 and of thorium-232, radium-228, and thorium-228 in UTS-1 and UTS-2 was determined in a radioanalytical program composed of eight laboratories. Recommended values for the radioactivities and associated parameters were calculated by a statistical treatment of the results

  4. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Author Affiliations. K L Sahoo1 Rina Sahu1 M Ghosh1 S Chatterjee2. Metal Extraction and Forming Division, National Metallurgical Laboratory, Jamshedpur 831 007, India; Department of Metallurgical and Materials Engineering, Bengal Engineering and Science University, Howrah 711 103, India ...

  5. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 39; Issue 2. Efficiency of surface modified Ti coated with copper nanoparticles to control marine bacterial adhesion under laboratory simulated conditions. CHOKKALINGAM PRIYA GANESSIN ARAVIND WILSON RICHARD THILAGARAJ. Volume 39 Issue 2 April 2016 ...

  6. Moessbauer Spectroscopy in Materials Science

    International Nuclear Information System (INIS)

    2006-01-01

    The publication in electronic form has been set up as proceedings of the conference dealing with applications of the Moessbauer spectroscopy in material science. Twenty-three abstracts and twenty-two presentations are included.

  7. Certified reference materials for the determination of uranium, thorium, and plutonium

    International Nuclear Information System (INIS)

    Santoliquido, P.M.

    1990-01-01

    The New Brunswick Laboratory (NBL) is the Department of Energy's Nuclear Materials Measurements and Standards Laboratory. As part of its mission, NBL provides certified reference materials (CRMs) for the analysis of various types of materials encountered in the nuclear fuel cycle. The reference material program at NBL gained greater prominence in 1981, when an interagency agreement between NBL and NBS established NBL as the distributor of one category of SRMs, the special nuclear materials SRMs. When NBS reorganized and became NIST in 1987, NBL bought out the remaining inventory of these particular SRMs which it was already distributing and renamed them as CRMs. The difference between the radioactivity SRMs which NIST still provides and the nuclear material CRMs which NBL provides will be explained. NBL CRMs are distributed worldwide and are used in nuclear safeguards applications and in geological and environmental research. The current NBL CRM inventory will be described

  8. Materials Science of High-Temperature Superconducting Coated Conductor Materials

    National Research Council Canada - National Science Library

    Beasley, M. R

    2007-01-01

    This program was broadly focused on the materials science of high temperature superconducting coated conductors, which are of potential interest for application in electric power systems of interest to the Air Force...

  9. Biomimetics in materials science self-healing, self-lubricating, and self-cleaning materials

    CERN Document Server

    Nosonovsky, Michael

    2012-01-01

    Biomimetics in Materials Science provides a comprehensive theoretical and practical review of biomimetic materials with self-healing, self-lubricating and self-cleaning properties. These three topics are closely related and constitute rapidly developing areas of study. The field of self-healing materials requires a new conceptual understanding of this biomimetic technology, which is in contrast to traditional  engineering processes such as wear and fatigue.  Biomimetics in Materials Science is the first monograph to be devoted to these materials. A new theoretical framework for these processes is presented based on the concept of multi-scale structure of entropy and non-equilibrium thermodynamics, together with a detailed review of the available technology. The latter includes experimental, modeling, and simulation results obtained on self-healing/lubricating/cleaning materials since their emergence in the past decade. Describes smart, biomimetic materials in the context of nanotechnology, biotechnology, an...

  10. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 31; Issue 2. Studies on in vitro release of CPM from semi-interpenetrating polymer network (IPN) composed of chitosan and glutamic acid. K Kumari P P Kundu. Polymers Volume 31 Issue 2 April 2008 pp 159-167 ...

  11. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 31; Issue 4 .... Synthesis and structural studies of Na2O–ZnO–ZnF2–B2O3 oxyfluoride glasses ... processing: A potential technique for preparing NiO–YSZ composite and Ni–YSZ cermet.

  12. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 34; Issue 4. Preparation of titanium diboride powders from titanium alkoxide ... The influence of TTIP concentration, reaction temperature and molar ratio of precursors on the synthesis of titanium diboride was investigated. Three different concentrations of TTIP solution, ...

  13. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 30; Issue 2 ... TSDC; PS; naphthalene; thermo-electrets; glass transition temperature (g). Abstract. The electrical conductivity of naphthalene doped polystyrene (PS) films (≈ 61.58 m thick) was studied as a function of dopant concentration and temperature.

  14. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 38; Issue 7. Glassy carbon electrodes modified with gelatin functionalized reduced graphene oxide nanosheet for determination of gallic acid. Fereshteh Chekin Samira Bagheri Sharifah Bee Abd Hamid. Volume 38 Issue 7 December 2015 pp 1711-1716 ...

  15. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 24; Issue 4. Evaluation of solid–liquid interface profile during continuous casting by a spline based formalism. S K Das. Metals and Alloys Volume ... Keywords. Continuous casting; solidification; solid–liquid interface; front tracking algorithm; phase change; heat transfer.

  16. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 39; Issue 3 ... The morphology and the nature of the protective layer grown under the paint film were also ... en Tecnología de Pinturas, Calle 52e/121 y 122, (B1900AYB), La Plata 1900, ...

  17. 10 CFR 433.3 - Materials incorporated by reference.

    Science.gov (United States)

    2010-01-01

    ... 10 Energy 3 2010-01-01 2010-01-01 false Materials incorporated by reference. 433.3 Section 433.3 Energy DEPARTMENT OF ENERGY ENERGY CONSERVATION ENERGY EFFICIENCY STANDARDS FOR THE DESIGN AND...) 741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations...

  18. Approved reference and testing materials for use in Nuclear Waste Management Research and Development Programs

    International Nuclear Information System (INIS)

    Mellinger, G.B.; Daniel, J.L.

    1984-12-01

    This document, addressed to members of the waste management research and development community summarizes reference and testing materials available from the Nuclear Waste Materials Characterization Center (MCC). These materials are furnished under the MCC's charter to distribute reference materials essential for quantitative evaluation of nuclear waste package materials under development in the US. Reference materials with known behavior in various standard waste management related tests are needed to ensure that individual testing programs are correctly performing those tests. Approved testing materials are provided to assist the projects in assembling materials data base of defensible accuracy and precision. This is the second issue of this publication. Eight new Approved Testing Materials are listed, and Spent Fuel is included as a separate section of Standard Materials because of its increasing importance as a potential repository storage form. A summary of current characterization information is provided for each material listed. Future issues will provide updates of the characterization status of the materials presented in this issue, and information about new standard materials as they are acquired. 7 references, 1 figure, 19 tables

  19. Bulletin of Materials Science | News

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 39; Issue 1 .... Na + /B 3 + phosphor has a potential application in white light-emitting diodes based ... College of Mathematics and Physics, Jinggangshan University, Ji'an 343009, China ...

  20. Bulletin of Materials Science | News

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 38; Issue 3 ... In this study, a modified model for the application of the thermionic and hopping current ... Departments of Mathematics and Physics, Arab American University, Jenin 240, ...

  1. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Nanotechnology is an emerging field in science and technology, which can be applied to synthesize new materials at the nanoscale level. The present investigation aimed at comparing the synthesis, characterization andin vitro anticancer efficacy of synthesized silver and gold nanoparticles using leaves extract of Bauhinia ...

  2. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 33; Issue 2. Evaluation of borax solid wastes in production of frits suitable for fast single-fired wall tile opaque glass–ceramic glazes. K Pekkan B Karasu. Ceramics and Glasses Volume 33 Issue 2 April 2010 pp 135-144 ...

  3. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 35; Issue 3. Property change during nanosecond pulse laser annealing of amorphous NiTi thin film ... amorphous thin films of near equiatomic Ni/Ti composition to produce partially crystallized highly sensitive -phase spots surrounded by amorphous regions. Scanning ...

  4. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    ... Courses · Symposia · Live Streaming. Home; Journals; Bulletin of Materials Science; Volume 27; Issue 6. Temperature dependence of pulse-induced mechanoluminescence excitation in coloured alkali halide crystals. Namita Rajput S Tiwari B P Chandra. Optical Properties Volume 27 Issue 6 December 2004 pp 505-509 ...

  5. Survey of reference materials for trace elements, nuclides and organic microcontaminants

    International Nuclear Information System (INIS)

    Parr, R.M.; Stone, S.F.; Bel-Amakeletch, T.; Zeisler, R.

    1998-01-01

    The International Atomic Energy Agency (IAEA), in co-operation with the United Nations Environment Programme (UNEP), has recently prepared a survey on internationally available analytical reference materials for trace elements, nuclides and organic contaminants in biological, environmental and related matrices. The purpose is to help analysts to select reference materials for quality assurance that match as closely as possible, with respect to matrix type and concentrations of the measurands of interest, the ''real'' samples that are to be measured. The present version of the survey, which is available in the form of two cost-free printed volumes [1], contains over 10,000 certified and information values in 650 reference materials from 27 different producers. The 455 measurands listed include trace elements, major and minor elements, organic contaminants, organometallic compounds, radionuclides and stable isotopes. Currently, the database from which the survey has been produced is being modified and extended so as to make the data available in electronic form via the Internet. (orig.)

  6. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 35; Issue 5. Effect of nitrogen flow ratio on structure and properties of zirconium nitride films on Si(100) prepared by ion beam sputtering. Shahab Norouzian Majid Mojtahedzadeh Larijani Reza Afzalzadeh. Volume 35 Issue 5 October 2012 pp 885-887 ...

  7. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 40; Issue 3. Effect of composition on the polarization and ohmic resistances of LSM/YSZ composite cathodes in solid oxide fuel cell. B SHRI PRAKASH S SENTHIL KUMAR S T ARUNA. Volume 40 Issue 3 June 2017 pp 441-452 ...

  8. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 36; Issue 1. Characterization and in vitro and in vivo evaluation of cross-linked chitosan films as implant for controlled release of citalopram. Patit P Kundu Santosh Kumar Jindal Manish Goswami. Volume 36 Issue 1 February 2013 pp 175-182 ...

  9. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Articles written in Bulletin of Materials Science. Volume 29 Issue 2 April 2006 pp 101-105 Polymers. Proton microbeam irradiation effects on PtBA polymer ... optical and secondary electron microscopic experimental methods. Volume 34 Issue 4 July 2011 pp 595-599. Thermal stability of gold-PS nanocomposites thin films.

  10. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 28; Issue 2. Effect of annealing temperature on the structural–microstructural and electrical characteristics of thallium bearing HTSC films prepared by chemical spray pyrolysis technique. K K Verma R S Tiwari O N Srivastava. Superconductors Volume 28 Issue 2 April ...

  11. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Special Issues. Bulletin of Materials Science. pp 199-584 Volume 31 Issue 3 June 2008. Proceedings of the 'National Review and Coordination Meeting on Nanoscience and Nanotechnology', Hyderabad, 2007. Editor: S. B. Krupanidhi Guest Editors: G. Sundararajan and Tata Narasinga Rao. pp 547-651 Volume 29 Issue ...

  12. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Articles written in Bulletin of Materials Science. Volume 26 Issue 2 February 2003 pp 247-253 Electrical Properties. Impedance spectroscopy ... the a.c. conductivity data. Volume 26 Issue 7 December 2003 pp 745-747 Electrical Properties. Dielectric properties of piezoelectric 3–0 composites of lithium ferrite/barium titanate.

  13. Soiled-based uranium disequilibrium and mixed uranium-thorium series radionuclide reference materials

    International Nuclear Information System (INIS)

    Donivan, S.; Chessmore, R.

    1988-12-01

    The US Department of Energy (DOE) Office of Remedial Action and Waste Technology has assigned the Technical Measurements Center (TMC), located at the DOE Grand Junction Colorado, Projects Office and operated by UNC Geotech (UNC), the task of supporting ongoing remedial action programs by providing both technical guidance and assistance in making the various measurements required in all phases of remedial action work. Pursuant to this task, the Technical Measurements Center prepared two sets of radionuclide reference materials for use by remedial action contractors and cognizant federal and state agencies. A total of six reference materials, two sets comprising three reference materials each, were prepared with varying concentrations of radionuclides using mill tailings materials, ores, and a river-bottom soil diluent. One set (disequilibrium set) contains varying amounts of uranium with nominal amounts of radium-226. The other set (mixed-nuclide set) contains varying amounts of uranium-238 and thorium-232 decay series nuclides. 14 refs., 10 tabs

  14. The Material Co-Construction of Hard Science Fiction and Physics

    Science.gov (United States)

    Hasse, Cathrine

    2015-01-01

    This article explores the relationship between hard science fiction and physics and a gendered culture of science. Empirical studies indicate that science fiction references might spur some students' interest in physics and help develop this interest throughout school, into a university education and even further later inspire the practice of…

  15. Preservice Elementary Teachers' Adaptation of Science Curriculum Materials for Inquiry-Based Elementary Science

    Science.gov (United States)

    Forbes, Cory T.

    2011-01-01

    Curriculum materials are important resources with which teachers make pedagogical decisions about the design of science learning environments. To become well-started beginning elementary teachers capable of engaging their students in inquiry-based science, preservice elementary teachers need to learn to use science curriculum materials…

  16. Evaluation of Botanical Reference Materials for the Determination of Vanadium in Biological Samples

    DEFF Research Database (Denmark)

    Heydorn, Kaj; Damsgaard, Else

    1982-01-01

    Three botanical reference materials prepared by the National Bureau of Standards have been studied by neutron activation analysis to evaluate their suitability with respect to the determination of vanadium in biological samples. Various decomposition methods were applied in connection with chemic....... A reference value of 1.15 mg/kg of this material is recommended, based on results from 3 different methods. All three materials are preferable to SRM 1571 Orchard Leaves, while Bowen's Kale remains the material of choice because of its lower concentration....

  17. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 37; Issue 3. Microstructural and optical properties of transparent conductive ZnO : Al : Mo films deposited by template-assisted sol–gel method. H-Y He J-F Huang Z He J Lu Q Shen. Volume 37 Issue 3 May 2014 pp 519-525 ...

  18. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 39; Issue 5. Effect of height to diameter ( h / d ) ratio on the deformation behaviour of Fe–Al 2 O 3 metal matrix nanocomposites. PALLAV GUPTA DEVENDRA KUMAR A K JHA OM PARKASH. Volume 39 Issue 5 September 2016 pp 1245-1258 ...

  19. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    University of Mohammed V, Faculty of Sciences, Department of Chemistry, Laboratory of Composite Materials, Polymers and Environment, Avenue Ibn Batouta, P.O. Box 1014, Rabat–Agdal 10106, Morocco; Departamento de Ingeniería Química Industrial y del Medio Ambiente, E.T.S.I. Industriales, Universidad Politécnica ...

  20. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 35; Issue 5. Effect of rolling deformation and solution treatment on ... By the solution treatment, the elongated and broken crystalline grains recrystallize which leads to the formation of finer grains (<10 m) of austenite. X-ray diffraction analysis has corroborated well with ...

  1. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    ... Workshops · Refresher Courses · Symposia · Live Streaming. Home; Journals; Bulletin of Materials Science; Volume 36; Issue 4. Magnetic resonance in superparamagnetic zinc ferrite. Jitendra Pal Singh Gagan Dixit R C Srivastava Hemant Kumar H M Agrawal Prem Chand. Volume 36 Issue 4 August 2013 pp 751-754 ...

  2. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 36; Issue 5. Thickness effect on properties of titanium film deposited by d.c. magnetron sputtering and electron beam evaporation techniques. Nishat Arshi Junqing Lu Chan Gyu Lee Jae Hong Yoon Bon Heun Koo Faheem Ahmed. Volume 36 Issue 5 October 2013 pp ...

  3. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 30; Issue 5. Influence of additives on electrodeposition of bright Zn–Ni alloy on mild steel from acid sulphate bath. S Shivakumara U Manohar Y Arthoba Naik T V Venkatesha. Alloys and Steels Volume 30 Issue 5 October 2007 pp 455-462 ...

  4. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 35; Issue 5 .... Influence of different heat treatment programs on properties of sol–gel ... The strong preferred c-axis orientation is lost due to cadmium doping and degree ... Electrical transport and EPR investigations: A comparative study for d.c. conduction mechanism in ...

  5. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 39; Issue 7. Theoretical study of built-in-polarization effect on relaxation time and mean free path of phonons in Al x Ga 1 − x N alloy. B K SAHOO A PANSARI. Volume 39 Issue 7 December 2016 pp 1835-1841 ...

  6. Normalization Methods and Selection Strategies for Reference Materials in Stable Isotope Analyses - Review

    International Nuclear Information System (INIS)

    Skrzypek, G.; Sadler, R.; Paul, D.; Forizs, I.

    2011-01-01

    A stable isotope analyst has to make a number of important decisions regarding how to best determine the 'true' stable isotope composition of analysed samples in reference to an international scale. It has to be decided which reference materials should be used, the number of reference materials and how many repetitions of each standard is most appropriate for a desired level of precision, and what normalization procedure should be selected. In this paper we summarise what is known about propagation of uncertainties associated with normalization procedures and propagation of uncertainties associated with reference materials used as anchors for the determination of 'true' values for δ''1''3C and δ''1''8O. Normalization methods Several normalization methods transforming the 'raw' value obtained from mass spectrometers to one of the internationally recognized scales has been developed. However, as summarised by Paul et al. different normalization transforms alone may lead to inconsistencies between laboratories. The most common normalization procedures are: single-point anchoring (versus working gas and certified reference standard), modified single-point normalization, linear shift between the measured and the true isotopic composition of two certified reference standards, two-point and multipoint linear normalization methods. The accuracy of these various normalization methods has been compared by using analytical laboratory data by Paul et al., with the single-point and normalization versus tank calibrations resulting in the largest normalization errors, and that also exceed the analytical uncertainty recommended for δ 13 C. The normalization error depends greatly on the relative differences between the stable isotope composition of the reference material and the sample. On the other hand, the normalization methods using two or more certified reference standards produces a smaller normalization error, if the reference materials are bracketing the whole range of

  7. APEX (Air Pollution Exercise) Volume 20: Reference Materials.

    Science.gov (United States)

    Environmental Protection Agency, Research Triangle Park, NC. Office of Manpower Development.

    The Reference Materials Manual is part of a set of 21 manuals (AA 001 009-001 029) used in APEX (Air Pollution Exercise), a computerized college and professional level "real world" game simulation of a community with urban and rural problems, industrial activities, and air pollution difficulties. For the purposes of the gaming exercise, APEX…

  8. Materials Knowledge Systems in Python - A Data Science Framework for Accelerated Development of Hierarchical Materials.

    Science.gov (United States)

    Brough, David B; Wheeler, Daniel; Kalidindi, Surya R

    2017-03-01

    There is a critical need for customized analytics that take into account the stochastic nature of the internal structure of materials at multiple length scales in order to extract relevant and transferable knowledge. Data driven Process-Structure-Property (PSP) linkages provide systemic, modular and hierarchical framework for community driven curation of materials knowledge, and its transference to design and manufacturing experts. The Materials Knowledge Systems in Python project (PyMKS) is the first open source materials data science framework that can be used to create high value PSP linkages for hierarchical materials that can be leveraged by experts in materials science and engineering, manufacturing, machine learning and data science communities. This paper describes the main functions available from this repository, along with illustrations of how these can be accessed, utilized, and potentially further refined by the broader community of researchers.

  9. Instrumental neutron activation analysis for the certification of biological reference materials

    International Nuclear Information System (INIS)

    Ambulkar, M.N.; Chutke, N.L.; Garg, A.N.

    1992-01-01

    A multielemental instrumental neutron activation analysis (INAA) method by short and long irradiation has been employed for the determination of 22 minor and trace constituents in two proposed Standard Reference Materials P-RBF and P-WBF from Institute of Radioecology and Applied Nuclear Techniques, Czechoslovakia. Also some biological standards such as Bowen's Kale, Cabbage leaves (Poland) including wheat and rice flour samples of local origin were analysed. It is suggested that INAA is an ideal method for the certification of reference materials of biological matrices. (author). 7 refs., 1 tab

  10. Survey of currently available reference materials for use in connection with the determination of trace elements in biological materials

    International Nuclear Information System (INIS)

    Parr, R.M.

    1983-09-01

    Elemental analysis of biological materials is at present the subject of intensive study by many different research groups throughout the world, in view of the importance of these trace elements in health and medical diagnosis. IAEA and other organizations are now making a variety of suitable reference materials available for use in connection with the determination of trace elements in biological materials. To help analysts in making a selection from among these various materials, the present report provides a brief survey of data for all such biological reference materials known to the author. These data are compiled by the author from January 1982 to June 1983

  11. High-precision isotopic characterization of USGS reference materials by TIMS and MC-ICP-MS

    Science.gov (United States)

    Weis, Dominique; Kieffer, Bruno; Maerschalk, Claude; Barling, Jane; de Jong, Jeroen; Williams, Gwen A.; Hanano, Diane; Pretorius, Wilma; Mattielli, Nadine; Scoates, James S.; Goolaerts, Arnaud; Friedman, Richard M.; Mahoney, J. Brian

    2006-08-01

    The Pacific Centre for Isotopic and Geochemical Research (PCIGR) at the University of British Columbia has undertaken a systematic analysis of the isotopic (Sr, Nd, and Pb) compositions and concentrations of a broad compositional range of U.S. Geological Survey (USGS) reference materials, including basalt (BCR-1, 2; BHVO-1, 2), andesite (AGV-1, 2), rhyolite (RGM-1, 2), syenite (STM-1, 2), granodiorite (GSP-2), and granite (G-2, 3). USGS rock reference materials are geochemically well characterized, but there is neither a systematic methodology nor a database for radiogenic isotopic compositions, even for the widely used BCR-1. This investigation represents the first comprehensive, systematic analysis of the isotopic composition and concentration of USGS reference materials and provides an important database for the isotopic community. In addition, the range of equipment at the PCIGR, including a Nu Instruments Plasma MC-ICP-MS, a Thermo Finnigan Triton TIMS, and a Thermo Finnigan Element2 HR-ICP-MS, permits an assessment and comparison of the precision and accuracy of isotopic analyses determined by both the TIMS and MC-ICP-MS methods (e.g., Nd isotopic compositions). For each of the reference materials, 5 to 10 complete replicate analyses provide coherent isotopic results, all with external precision below 30 ppm (2 SD) for Sr and Nd isotopic compositions (27 and 24 ppm for TIMS and MC-ICP-MS, respectively). Our results also show that the first- and second-generation USGS reference materials have homogeneous Sr and Nd isotopic compositions. Nd isotopic compositions by MC-ICP-MS and TIMS agree to within 15 ppm for all reference materials. Interlaboratory MC-ICP-MS comparisons show excellent agreement for Pb isotopic compositions; however, the reproducibility is not as good as for Sr and Nd. A careful, sequential leaching experiment of three first- and second-generation reference materials (BCR, BHVO, AGV) indicates that the heterogeneity in Pb isotopic compositions

  12. Quality of Standard Reference Materials for Short Time Activation Analysis

    International Nuclear Information System (INIS)

    Ismail, S.S.; Oberleitner, W.

    2003-01-01

    Some environmental reference materials (CFA-1633 b, IAEA-SL-1, SARM-1,BCR-176, Coal-1635, IAEA-SL-3, BCR-146, and SRAM-5) were analysed by short-time activation analysis. The results show that these materials can be classified in three groups, according to their activities after irradiation. The obtained results were compared in order to create a quality index for determination of short-lived nuclides at high count rates. It was found that Cfta is not a suitable standard for determining very short-lived nuclides (half-lives<1 min) because the activity it produces is 15-fold higher than that SL-3. Biological reference materials, such as SRM-1571, SRM-1573, SRM-1575, SRM-1577, IAEA-392, and IAEA-393, were also investigated by a higher counting efficiency system. The quality of this system and its well-type detector for investigating short-lived nuclides was discussed

  13. THE DEVELOPMENT OF AIR-THEME INTEGRATED SCIENCE TEACHING MATERIAL USING FOUR STEPS TEACHING MATERIAL DEVELOPMENT

    Directory of Open Access Journals (Sweden)

    A. Arifin

    2016-01-01

    Full Text Available The purposes of this study are to develop, to test the feasibility, to describe the characteristic, and to test the students understanding about integrated science teaching material about air using Four Steps Teaching Material Development (4S TMD. The Research and Development method was use to develop integrated science teaching materials which is involving  all science perspectives that are not presented in junior high school science book. The air theme was chosen in this study since it can be explained using biology, chemistry, physics, and earth and space science  perspectives. Development the teaching materials was consists of selection, structuring, characterization, and reduction didactic steps. Based on the of feasibility test results, the teaching material is qualified in content, presentation, language, and graphic feasibility aspects. The characteristic of this teaching material expose the closeness theme with student daily lifes and its compatibility with National Books Standard. Based on the understanding test results, the teaching material is qualified in understanding aspect with high category. It can be concluded that the teaching material qualified to be used as supplement teaching material of science learning.Penelitian ini bertujuan untuk mengembangkan, menguji kelayakan, memaparkan karakteristik, dan menguji keterpahaman bahan ajar IPA terpadu pada tema udara untuk siswa SMP kelas VII melalui Four Steps Teaching Material Development (4S TMD. Penelitian dengan metode Research and Development (R&D ini dilatar belakangi oleh tidak tersedianya bahan ajar IPA SMP yang disajikan secara terpadu melalui tema udara. Pengembangan bahan ajar IPA terpadu tema udara terdiri dari tahap seleksi, strukturisasi, karakterisasi dan reduksi didaktik. Berdasarkan uji kelayakan, bahan ajar telah memenuhi aspek kelayakan isi, kelayakan penyajian, kelayakan bahasa dan kelayakan kegrafikan. Karakteristik bahan ajar meliputi kedekatan tema bahan ajar

  14. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 39; Issue 5. Structure and magnetic properties of Zr–Mn substituted strontium hexaferrite Sr(Zr,Mn) x Fe 12 − 2 x O 19 nanoparticles synthesized by sol–gel auto-combustion method. S ALAMOLHODA S M MIRKAZEMI Z GHIAMI M NIYAIFAR. Volume 39 Issue 5 ...

  15. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    K Ramachandran. Articles written in Bulletin of Materials Science. Volume 25 Issue 4 August 2002 pp ... Volume 27 Issue 5 October 2004 pp 403-407 Phase Transitions. Phase transition in L-alaninium oxalate by ... Thermal and structural properties of spray pyrolysed CdS thin film · P Raji C Sanjeeviraja K Ramachandran.

  16. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Synthesis of swift heavy ion induced metal silicide is a new advancement in materials science research. We have investigated the mixing at Co/Si interface by swift heavy ion beam induced irradiation in the electronic stopping power regime. Irradiations were undertaken at room temperature using 120 MeV Au ions at the ...

  17. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 29; Issue 2. Thermoluminescence dosimetry of rare earth doped calcium aluminate phosphors. K Madhukumar K Rajendra Babu K C Ajith Prasad J James T S Elias V Padmanabhan C M K Nair. Ceramics and Glasses Volume 29 Issue 2 April 2006 pp 119-122 ...

  18. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 38; Issue 4 ... of the nanoporous titania films attached with and without photosensitizer TCPP .... The positive values of free energy indicate the non-spontaneity of the sorption of HNTs ..... Effect of RF power and gas flow ratio on the growth and morphology of the PECVD ...

  19. Bulletin of Materials Science | News

    Indian Academy of Sciences (India)

    Author Affiliations. V V Deshpande1 M M Patil1 S C Navale2 V Ravi1. Physical and Materials Chemistry Division, National Chemical Laboratory, Pune 411 008, India; Polymer Science and Engineering Division, National Chemical Laboratory, Pune 411 008, India ...

  20. Bulletin of Materials Science | News

    Indian Academy of Sciences (India)

    Layered LiNi1/3Co1/3Mn1/3O2 was synthesized by a citric acid assisted ... was investigated by the galvanostatic intermittent titration technique (GITT) ... The State Key Laboratory Base of Novel Functional Materials and Preparation Science; ...

  1. Bulletin of Materials Science | News

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 38; Issue 3 .... (EDX) and UV–vis spectroscopy were used to study the chemical composition and optical .... Enhanced microactuation with magnetic field curing of magnetorheological ... Structure, morphology and corrosion resistance of Ni–Mo+PTh composite coatings.

  2. CSIR eNews: Materials science and manufacturing

    CSIR Research Space (South Africa)

    CSIR

    2009-09-01

    Full Text Available knowledge and networks within these fields. A major competitive advantage is the wide coverage of materials (e.g. fibres, textiles, polymers, ceramics, composites, metals) and manufacturing disciplines within one unit. This enables CSIR Materials Science...

  3. CSIR eNews: Materials science and manufacturing

    CSIR Research Space (South Africa)

    CSIR

    2007-12-01

    Full Text Available knowledge and networks within these fields. A major competitive advantage is the wide coverage of materials (e.g. fibres, textiles, polymers, ceramics, composites, metals) and manufacturing disciplines within one unit. This enables CSIR Materials Science...

  4. CSIR eNews: Materials science and manufacturing

    CSIR Research Space (South Africa)

    CSIR

    2008-12-01

    Full Text Available knowledge and networks within these fields. A major competitive advantage is the wide coverage of materials (e.g. fibres, textiles, polymers, ceramics, composites, metals) and manufacturing disciplines within one unit. This enables CSIR Materials Science...

  5. CSIR eNews: Materials science and manufacturing

    CSIR Research Space (South Africa)

    CSIR

    2008-03-01

    Full Text Available knowledge and networks within these fields. A major competitive advantage is the wide coverage of materials (e.g. fibres, textiles, polymers, ceramics, composites, metals) and manufacturing disciplines within one unit. This enables CSIR Materials Science...

  6. First Materials Science Research Rack Capabilities and Design Features

    Science.gov (United States)

    Schaefer, D.; King, R.; Cobb, S.; Whitaker, Ann F. (Technical Monitor)

    2001-01-01

    The first Materials Science Research Rack (MSRR-1) will accommodate dual Experiment Modules (EM's) and provide simultaneous on-orbit processing operations capability. The first international Materials Science Experiment Module for the MSRR-1 is an international cooperative research activity between NASA's Marshall Space Flight Center (MSFC) and the European Space Agency's (ESA) European Space Research and Technology Center. (ESTEC). This International Standard Payload Rack (ISPR) will contain the Materials Science Laboratory (MSL) developed by ESA as an Experiment Module. The MSL Experiment Module will accommodate several on-orbit exchangeable experiment-specific Module Inserts. Module Inserts currently planned are a Quench Module Insert, Low Gradient Furnace, Solidification with Quench Furnace, and Diffusion Module Insert. The second Experiment Module for the MSRR-1 configuration is a commercial device supplied by MSFC's Space Products Department (SPD). It includes capabilities for vapor transport processes and liquid metal sintering. This Experiment Module will be replaced on-orbit with other NASA Materials Science EMs.

  7. Element concentrations in candidate biological and environmental reference materials by k0-standardized INAA

    International Nuclear Information System (INIS)

    Freitas, M.C.

    1993-01-01

    K 0 -Based Neutron Activation Analysis (k 0 INAA) was used to analyze the candidate reference materials Apple Leaves and Peach Leaves, and Oriental Tobacco Leaves and Virginia Tobacco Leaves. Concentration values for 27 elements were measured. The accuracy was ascertained by analysis of two certified reference materials. NIST 1572 Citrus Leaves and 1573 Tomato Leaves. The homogeneity test of the IAEA Evernia prunastri candidate reference material in aliquots ≥ 100 mg is extended to the elements Sc, Cr, Fe, Co, Zn, Rb, Sb, Cs, Ba, Ce and Th. (orig.)

  8. Survey of currently available reference materials for use in connection with the determination of trace elements in biological and environmental materials

    International Nuclear Information System (INIS)

    Muramatsu, Y.; Parr, R.M.

    1985-12-01

    This report focuses on analytical reference materials which have been developed for use in connection with the determination of toxic and essential trace elements in biomedical and health-related environmental samples. Data are reported on 60 biological and 40 environmental (non-biological) reference materials from 11 suppliers. Certified concentration values (or their equivalents) and non-certified concentration values (or information values) are presented in various tables which are intended to help the user select a reference material that matches as closely as possible (i.e. with respect to matrix type and concentration of the element of interest) the ''real'' samples that are to be analysed. These tables have been generated from a database characterized by the following parameters: total number of reference materials=100; total number of elements recorded=69; total number of concentration values recorded=1771. Also included in the report is information (where available) on the cost of each material, the unit weight or volume supplied, and the minimum weight of material recommended for analysis. (author)

  9. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    ... Refresher Courses · Symposia · Live Streaming. Home; Journals; Bulletin of Materials Science; Volume 36; Issue 4. Enhanced high temperature performance of LiMn2O4 coated with Li3BO3 solid electrolyte. Liu Jinlian Wu Xianming Chen Shang Liu Jianben He Zeqiang. Volume 36 Issue 4 August 2013 pp 687-691 ...

  10. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 39; Issue 3. Structural investigation of V 2 O 5 –P 2 O 5 –K 2 O glass system with antibacterial potential. N S VEDEANU I B COZAR R STANESCU R STEFAN D VODNAR O COZAR. Volume 39 Issue 3 June 2016 pp 697-702 ...

  11. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 41; Issue 2. Effect of oxygen vacancies on Li-storage of anatase TiO 2 (001) facets: a first principles study. H CHEN Y H DING X Q TANG W ZHANG J R YIN P ZHANG Y JIANG. Volume 41 Issue 2 April 2018 Article ID 51 ...

  12. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    ... Lecture Workshops · Refresher Courses · Symposia · Live Streaming. Home; Journals; Bulletin of Materials Science; Volume 29; Issue 4. Acoustic study of nano-crystal embedded PbO–P2O5 glass. Sudip K Batabyal A Paul P Roychoudhury C Basu. Ceramics and Glasses Volume 29 Issue 4 August 2006 pp 357-363 ...

  13. Technical Education Outreach in Materials Science and Technology Based on NASA's Materials Research

    Science.gov (United States)

    Jacobs, James A.

    2003-01-01

    The grant NAG-1 -2125, Technical Education Outreach in Materials Science and Technology, based on NASA s Materials Research, involves collaborative effort among the National Aeronautics and Space Administration s Langley Research Center (NASA-LaRC), Norfolk State University (NSU), national research centers, private industry, technical societies, colleges and universities. The collaboration aims to strengthen math, science and technology education by providing outreach related to materials science and technology (MST). The goal of the project is to transfer new developments from LaRC s Center for Excellence for Structures and Materials and other NASA materials research into technical education across the nation to provide educational outreach and strengthen technical education. To achieve this goal we are employing two main strategies: 1) development of the gateway website and 2) using the National Educators Workshop: Update in Engineering Materials, Science and Technology (NEW:Updates). We have also participated in a number of national projects, presented talks at technical meetings and published articles aimed at improving k-12 technical education. Through the three years of this project the NSU team developed the successful MST-Online site and continued to upgrade and update it as our limited resources permitted. Three annual NEW:Updates conducted from 2000 though 2002 overcame the challenges presented first by the September 11,2001 terrorist attacks and the slow U.S. economy and still managed to conduct very effective workshops and expand our outreach efforts. Plans began on NEW:Update 2003 to be hosted by NASA Langley as a part of the celebration of the Centennial of Controlled Flight.

  14. Bulletin of Materials Science | News

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 32; Issue 2. Issue front cover thumbnail. Volume 32, Issue 2. April 2009, pages 117-214. pp 117-123 Thin Films and Nanomatter. Microstructural characteristics and mechanical properties of magnetron sputtered nanocrystalline TiN films on glass substrate.

  15. Preparation and certification of a uranium isotope certified reference material JAERI-U5

    International Nuclear Information System (INIS)

    Tamura, Shuzo; Hashitani, Hiroshi

    1982-06-01

    The Committee on Analytical Chemistry of Nuclear Fuels and Reactor Materials, JAERI had planned to prepare a new reference material, JAERI-U5 for uranium isotopic measurement since 1978. The reference material is composed of 6 samples of different enrichment in the range of 0.2 to 4.5 wt. percents of 235 U. The preparation includes dissolution of raw materials, blending of solutions, precipitation of ammonium diuranate, drying and ignition to U 3 O 8 . A mass-spectrometric collaborative analysis was carried out by well-trained two laboratories in this country, JAERI and PNC. The certified values were decided from the result of the collaborative work. As the measurements were based on NBS SRM's, JAERI-U5 should be called tertiary standard. The materials are packed in bottles of low-potassium-content glass for a possible use in non-destructive gamma-rays spectrometry. The reference material has been distributing from JAERI with a price of yen 140,000 per set (6 samples of 2 g of each) since 1979. (author)

  16. Catalogue of reference materials of interest to nuclear energy

    International Nuclear Information System (INIS)

    1974-12-01

    A provisional list of available chemical, isotopic and trace elements reference materials of interest to nuclear energy has been established. Emphasis has been given to the substances containing uranium and plutonium. Certified values, sample sizes, prices and addresses of suppliers are indicated

  17. Classroom Demonstrations in Materials Science/Engineering.

    Science.gov (United States)

    Hirschhorn, J. S.; And Others

    Examples are given of demonstrations used at the University of Wisconsin in a materials science course for nontechnical students. Topics include crystal models, thermal properties, light, and corrosion. (MLH)

  18. Analysis of FDA in-house food reference materials with anticoincidence INAA

    International Nuclear Information System (INIS)

    Anderson, D.L.; Cunningham, W.C.

    2013-01-01

    In-house reference material (IRM) cocoa powder (CCP) has been in use at US Food and Drug Administration laboratories for about 15 years. A single lot of commercial material was originally characterized for 32 elements by several laboratories and five techniques. A unique approach for basis weight determination based upon ambient relative humidity was developed for CCP, eliminating the need for dry weight determinations. The CCP Reference Sheet is updated by incorporating new results approximately every 5 years. The last update occurred in 2006. As part of an effort to revalidate and update values for CCP, anticoincidence instrumental neutron activation analysis (INAA) was used to determine mass fractions for 16 of the originally characterized elements, as well as to provide information on 16 other elements. Results were in very good agreement with 2006 Reference Sheet values. A new candidate IRM, fresh-frozen swordfish (FFSF) powder, was produced by adding inorganic As, Cd, Cr, Hg, Pb, Sb, and Se to liquid nitrogen-frozen commercial swordfish filets which were then homogenized. Portions of FFSF were analyzed by INAA to provide mass fraction and homogeneity information for As, Cd, Cr, Hg, Sb, and Se as well as for eight other elements occurring naturally in the material. Non-homogeneities were ≤2.5 % for As, Br, Cd, and Cs, and ≤1.8 % for Cr, Hg, Rb, Sb, and Se. Certified reference materials DORM-3 Fish Protein powder and fresh-frozen SRM 1947 Lake Michigan Fish Tissue were analyzed as controls. (author)

  19. Optimization of instrumental neutron activation analysis for the within-bottle homogeneity study of reference materials of marine origin

    International Nuclear Information System (INIS)

    Silva, Daniel Pereira da

    2017-01-01

    The use of reference materials has been increasing in chemical analysis laboratories as its use is important for measurement validation in analytical chemistry. Such materials are generally imported, which require high financial investments in order to acquire them, and therefore it impacts on the difficulty to many national laboratories to use reference materials in their chemical analysis routine. Certification of reference materials is a complex process that assumes that the user is given appropriate assigned values of the properties of interests in the material. In this process, the homogeneity of the material must be checked. In this study, the within-bottle homogeneity study for the elements K, Mg, Mn, Na and V was performed for two reference materials of marine origin: the mussel reference material produced at the Neutron Activation Laboratory (LAN) of IPEN - CNEN/SP and an oyster tissue reference material produced abroad. For this purpose, the elements were determined in subsamples with masses varying between 1 and 250 mg by Instrumental Neutron Activation Analysis (INAA) and minimum sample intakes were estimated, ranging from 0.015 g for Na in the mussel reference material to 0.100 g for V in the two reference materials. (author)

  20. Multiscale paradigms in integrated computational materials science and engineering materials theory, modeling, and simulation for predictive design

    CERN Document Server

    Runge, Keith; Muralidharan, Krishna

    2016-01-01

    This book presents cutting-edge concepts, paradigms, and research highlights in the field of computational materials science and engineering, and provides a fresh, up-to-date perspective on solving present and future materials challenges. The chapters are written by not only pioneers in the fields of computational materials chemistry and materials science, but also experts in multi-scale modeling and simulation as applied to materials engineering. Pedagogical introductions to the different topics and continuity between the chapters are provided to ensure the appeal to a broad audience and to address the applicability of integrated computational materials science and engineering for solving real-world problems.

  1. Recommended reference materials for realization of physicochemical properties density

    CERN Document Server

    Herington, E F G

    1976-01-01

    This book first presents the nomenclature and units used in the determination of densities of liquids and solids, followed by a general description of the apparatus and the methods used in the measurement of density, with particular reference to the pycnometric, hydrostatic weighing, magnetic float, and temperature flotation methods. The use of water as a density reference material is then explained, focusing on the isotopic composition of Standard Mean Ocean Water (SMOW) and the absolute density of SMOW as a function of temperature. Problems due to the effect of pressure and dissolved gases o

  2. Proper use of reference materials for trace element analysis and updates on their availability

    International Nuclear Information System (INIS)

    Snell, J.P.

    2009-01-01

    Full text: As different spectroscopic methods are used to certify reference materials (RMs) for element content, there is close interrelation between development of new methods and availability of new certified reference materials (CRMs). The Institute for Reference Materials and Measurements (IRMM) monitors changing scientific and regulatory interests, and adapts materials to current and predicted needs. This includes the development of CRMs with new matrices, or changing analytes and concentration levels for existing types of CRMs. Recent examples are CRMs to support the EC Directives on air quality and water, for nanoparticle characterization, and progressing international standards for biofuel measurements. User guidance including appropriate CRM selection, and use of uncertainties in comparing results will be highlighted. (author)

  3. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 27; Issue 3. Comparative investigation on the effect of alkaline earth oxides on the intensity of absorption bands due to Cu2+, Mn3+ and Cr3+ ions in ternary silicate glasses. S P Singh Aman Anal Tarafder. Glasses Volume 27 Issue 3 June 2004 pp 281-287 ...

  4. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    V Renteria. Articles written in Bulletin of Materials Science. Volume 38 Issue 1 February 2015 pp 29-40. Yttrium deposition on mesoporous TiO2: textural design and UV decolourization of organic dyes · M L Ojeda C Velasquez V Renteria A Campero M A García-Sánchez F Rojas · More Details Abstract Fulltext PDF.

  5. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 37; Issue 4. Structural, spectroscopic and electrochemical study of V5+ substituted LiTi2(PO4)3 solid electrolyte for lithium-ion batteries. A Venkateswara Rao V Veeraiah A V Prasada Rao B Kishore Babu B Swarna Latha K Rama Rao. Volume 37 Issue 4 June 2014 pp ...

  6. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 35; Issue 2 ... Surface texture modification of spin-coated SiO2 xerogel thin films by TMCS silylation .... Influence of pH and bath composition on properties of Ni–Fe alloy films ... Diffuse phase transition, piezoelectric and optical study of Bi0.5Na0.5TiO3 ceramic.

  7. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Articles written in Bulletin of Materials Science. Volume 30 Issue 4 August 2007 pp 301-308 Biomaterials. Adhesive B-doped DLC films on ... Volume 30 Issue 4 August 2007 pp 407-413 Alloys and Steels. Structural phase transitions and piezoelectric anomalies in ordered Sc0.5Ga0.5N alloys · A M Alsaad A A Ahmad.

  8. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 29; Issue 4. Impedance and a.c. conductivity studies on Ba(Nd0.2Ti0.6Nb0.2)O3 ceramic prepared through conventional and microwave sintering route. Syed Mahboob G Prasad G S Kumar. Ceramics and Glasses Volume 29 Issue 4 August 2006 pp 347-355 ...

  9. Bulletin of Materials Science | News

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 27; Issue 4. Issue front cover thumbnail. Volume 27, Issue 4. August 2004, pages 323-394. pp 323-325 Crystal Growth. Growth features of ammonium hydrogen -tartrate single crystals · G Sajeevkumar R Raveendran B S Remadevi Alexander Varghese Vaidyan.

  10. The Usage of Recycle Materials for Science Practicum: Is There Any Effect on Science Process Skills?

    Science.gov (United States)

    Prajoko, Setiyo; Amin, Mohamad; Rohman, Fatchur; Gipayana, Muhana

    2017-01-01

    This study aimed at determining the effect of recycle materials usage for science practicum on students' basic science process skills of the Open University, Surakarta. Recycle materials are the term used for the obtained materials and equipment from the students' environment by taking back the garbage or secondhand objects into goods or new…

  11. Knowledge of childhood: materiality, text, and the history of science - an interdisciplinary round table discussion.

    Science.gov (United States)

    Rietmann, Felix; Schildmann, Mareike; Arni, Caroline; Cook, Daniel Thomas; Giuriato, Davide; Göhlsdorf, Novina; Muigai, Wangui

    2017-03-01

    This round table discussion takes the diversity of discourse and practice shaping modern knowledge about childhood as an opportunity to engage with recent historiographical approaches in the history of science. It draws attention to symmetries and references among scientific, material, literary and artistic cultures and their respective forms of knowledge. The five participating scholars come from various fields in the humanities and social sciences and allude to historiographical and methodological questions through a range of examples. Topics include the emergence of children's rooms in US consumer magazines, research on the unborn in nineteenth-century sciences of development, the framing of autism in nascent child psychiatry, German literary discourses about the child's initiation into writing, and the sociopolitics of racial identity in the photographic depiction of African American infant corpses in the early twentieth century. Throughout the course of the paper, childhood emerges as a topic particularly amenable to interdisciplinary perspectives that take the history of science as part of a broader history of knowledge.

  12. General and special engineering materials science. Vol. 3

    International Nuclear Information System (INIS)

    Ondracek, G.; Hofmann, P.

    1983-04-01

    The report about general and special engineering materials science is the result of lectures given by the authors in two terms in 1982 at Instituto Balseiro, San Carlos de Bariloche, the graduated college of the Universidad de Cuyo and Comision Nacional de Energia Atomica, Republica Argentina. These lectures were organised in the frame of the project ''nuclear engineering'' (ARG/78/020) of the United Nations Development Program (UNDP) by the International Atomic Energy Agency (IAEA). Some chapters of the report are written in English, others in Spanish. The report is subdivided into three volumes. The present volume III concerns special engineering materials science and considers nuclear materials with respect to off-normal (''accident'') reactor operation conditions including nuclear materials in loss-of-coolant accident and nuclear materials in core melt accidents. (orig./IHOE) [de

  13. The calibration of XRF polyethylene reference materials with k 0-NAA and ICP-AES

    International Nuclear Information System (INIS)

    Swagten, Josefien; Bossus, Daniel; Vanwersch, Hanny

    2006-01-01

    Due to the lack of commercially available polyethylene reference materials for the calibration of X-ray fluorescence spectrometers (XRF), DSM Resolve, in cooperation with PANalytical, prepared and calibrated such a set of standards in 2005. The reference materials were prepared based on the addition of additives to virgin polyethylene. The mentioned additives are added to improve the performance of the polymers. The elements present in additives are tracers for the used additives. The reference materials contain the following elements: F, Na, Mg, Al, Si, P, S, Ca, Ti and Zn in the concentration range of 5 mg/kg for Ti, up to 600 mg/kg for Mg. The calibration of the reference materials, including a blank, was performed using inductively coupled plasma atomic emission spectrometry (ICP-AES) and Neutron Activation Analysis (k 0 -NAA). ICP-AES was used to determine the elements Na, Mg, Al, P, Ca, Ti and Zn whereas k 0 -NAA was used for F, Na, Mg, Al, Ca, Ti and Zn. Over the complete concentration range, a good agreement of the results was found between the both techniques. This project has shown that within DSM Resolve, it is possible to develop and to calibrate homogenous reference materials for XRF

  14. Bulletin of Materials Science | News

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 25; Issue 4 ... were synthesized by self-propagating high temperature synthesis (SHS) method. ... Structure determination at room temperature and phase transition studies above T c in .... Hyperfine field distributions in disordered Mn2CoSn and Mn2NiSn Heusler alloys.

  15. Berkeley Lab - Materials Sciences Division

    Science.gov (United States)

    conjugation using genetically encoded aldehyde tags. Nature Protocols 7, 1052 (2012). abstract » J. Y. Shu, R . Onoe, R. A. Mathies and M. B. Francis. Direct Attachment of Microbial Organisms to Material Surfaces -modified proteins to their binding partners. Proceedings of the National Academy of Sciences 109, 4834

  16. ENAA of iodine in standard reference material lyophilized human urine

    International Nuclear Information System (INIS)

    Zhang Yongbao; Wang Ke; Wang Ganfeng

    1997-01-01

    The contents of iodine in two kinds of standard reference materials lyophilized human urine are determined by ENAA. The sensitivity of this method is ten times higher than that of TNAA, and the relative standard deviations of ten measurements are 2.9% and 3.3%, respectively. Two certificated reference samples are used for verification of the analysis. The analytical results are in agreement with the recommended values, and the relative error is less than 3%

  17. Baseline Assessment of 25-Hydroxyvitamin D Reference Material and Proficiency Testing/External Quality Assurance Material Commutability: A Vitamin D Standardization Program Study.

    Science.gov (United States)

    Phinney, Karen W; Sempos, Christopher T; Tai, Susan S-C; Camara, Johanna E; Wise, Stephen A; Eckfeldt, John H; Hoofnagle, Andrew N; Carter, Graham D; Jones, Julia; Myers, Gary L; Durazo-Arvizu, Ramon; Miller, W Greg; Bachmann, Lorin M; Young, Ian S; Pettit, Juanita; Caldwell, Grahame; Liu, Andrew; Brooks, Stephen P J; Sarafin, Kurtis; Thamm, Michael; Mensink, Gert B M; Busch, Markus; Rabenberg, Martina; Cashman, Kevin D; Kiely, Mairead; Galvin, Karen; Zhang, Joy Y; Kinsella, Michael; Oh, Kyungwon; Lee, Sun-Wha; Jung, Chae L; Cox, Lorna; Goldberg, Gail; Guberg, Kate; Meadows, Sarah; Prentice, Ann; Tian, Lu; Brannon, Patsy M; Lucas, Robyn M; Crump, Peter M; Cavalier, Etienne; Merkel, Joyce; Betz, Joseph M

    2017-09-01

    The Vitamin D Standardization Program (VDSP) coordinated a study in 2012 to assess the commutability of reference materials and proficiency testing/external quality assurance materials for total 25-hydroxyvitamin D [25(OH)D] in human serum, the primary indicator of vitamin D status. A set of 50 single-donor serum samples as well as 17 reference and proficiency testing/external quality assessment materials were analyzed by participating laboratories that used either immunoassay or LC-MS methods for total 25(OH)D. The commutability test materials included National Institute of Standards and Technology Standard Reference Material 972a Vitamin D Metabolites in Human Serum as well as materials from the College of American Pathologists and the Vitamin D External Quality Assessment Scheme. Study protocols and data analysis procedures were in accordance with Clinical and Laboratory Standards Institute guidelines. The majority of the test materials were found to be commutable with the methods used in this commutability study. These results provide guidance for laboratories needing to choose appropriate reference materials and select proficiency or external quality assessment programs and will serve as a foundation for additional VDSP studies.

  18. Preparation and characterization of a Perna perna (Linnaeus, 1758) mussel reference material

    International Nuclear Information System (INIS)

    Moreira, Edson Goncalves

    2010-01-01

    The use of certified reference materials in chemical analysis is an important requirement in quality assurance systems, as it allows the validation of analytical methods and the realization of the metrological traceability of results. Then, it is possible to obtain valid and comparable results not only in space, but also in time. In this study, all the steps for the preparation of a national mussel reference material were attained, from the collection of the bulk material to processing steps such as freeze-drying, grinding, bottling and sterilization. Internationally accepted principles were applied for the homogeneity and stability assessment of the material, using instrumental neutron activation analysis and atomic absorption spectrometry as analytical techniques. By means of a collaborative program with participation of Brazilian and foreign laboratories, the chemical characterization of the material was performed. Element content in the mass percentage to mg kg -1 range was determined for 47 elements and some radionuclides, naturally present in the material. With the application of suitable statistical treatment to the data, it was considered that the content of 11 of those elements may be certified: As, Ca, Cl, Co, K, Mg, Mn, Na, Se, Th and Zn. This study may be considered an important step in the national metrological development, as it shows that the production and characterization of biological reference materials, mussel in particular, is feasible in Brazil, as a tool for quality assurance of environmental and nutritional studies performed in the country. (author)

  19. USGS42 and USGS43: Human-hair stable hydrogen and oxygen isotopic reference materials and analytical methods for forensic science and implications for published measurement results

    Science.gov (United States)

    Coplen, T.B.; Qi, H.

    2012-01-01

    Because there are no internationally distributed stable hydrogen and oxygen isotopic reference materials of human hair, the U.S. Geological Survey (USGS) has prepared two such materials, USGS42 and USGS43. These reference materials span values commonly encountered in human hair stable isotope analysis and are isotopically homogeneous at sample sizes larger than 0.2 mg. USGS42 and USGS43 human-hair isotopic reference materials are intended for calibration of δ(2)H and δ(18)O measurements of unknown human hair by quantifying (1) drift with time, (2) mass-dependent isotopic fractionation, and (3) isotope-ratio-scale contraction. While they are intended for measurements of the stable isotopes of hydrogen and oxygen, they also are suitable for measurements of the stable isotopes of carbon, nitrogen, and sulfur in human and mammalian hair. Preliminary isotopic compositions of the non-exchangeable fractions of these materials are USGS42(Tibetan hair)δ(2)H(VSMOW-SLAP) = -78.5 ± 2.3‰ (n = 62) and δ(18)O(VSMOW-SLAP) = +8.56 ± 0.10‰ (n = 18) USGS42(Indian hair)δ(2)H(VSMOW-SLAP) = -50.3 ± 2.8‰ (n = 64) and δ(18)O(VSMOW-SLAP) = +14.11 ± 0.10‰ (n = 18). Using recommended analytical protocols presented herein for δ(2)H(VSMOW-SLAP) and δ(18)O(VSMOW-SLAP) measurements, the least squares fit regression of 11 human hair reference materials is δ(2)H(VSMOW-SLAP) = 6.085δ(2)O(VSMOW-SLAP) - 136.0‰ with an R-square value of 0.95. The δ(2)H difference between the calibrated results of human hair in this investigation and a commonly accepted human-hair relationship is a remarkable 34‰. It is critical that readers pay attention to the δ(2)H(VSMOW-SLAP) and δ(18)O(VSMOW-SLAP) of isotopic reference materials in publications, and they need to adjust the δ(2)H(VSMOW-SLAP) and δ(18)O(VSMOW-SLAP) measurement results of human hair in previous publications, as needed, to ensure all results on are on the same scales.

  20. Use of an excess variance approach for the certification of reference materials by interlaboratory comparison

    International Nuclear Information System (INIS)

    Crozet, M.; Rigaux, C.; Roudil, D.; Tuffery, B.; Ruas, A.; Desenfant, M.

    2014-01-01

    In the nuclear field, the accuracy and comparability of analytical results are crucial to insure correct accountancy, good process control and safe operational conditions. All of these require reliable measurements based on reference materials whose certified values must be obtained by robust metrological approaches according to the requirements of ISO guides 34 and 35. The data processing of the characterization step is one of the key steps of a reference material production process. Among several methods, the use of interlaboratory comparison results for reference material certification is very common. The DerSimonian and Laird excess variance approach, described and implemented in this paper, is a simple and efficient method for the data processing of interlaboratory comparison results for reference material certification. By taking into account not only the laboratory uncertainties but also the spread of the individual results into the calculation of the weighted mean, this approach minimizes the risk to get biased certified values in the case where one or several laboratories either underestimate their measurement uncertainties or do not identify all measurement biases. This statistical method has been applied to a new CETAMA plutonium reference material certified by interlaboratory comparison and has been compared to the classical weighted mean approach described in ISO Guide 35. This paper shows the benefits of using an 'excess variance' approach for the certification of reference material by interlaboratory comparison. (authors)

  1. Understanding Materials Science History · Properties · Applications

    CERN Document Server

    Hummel, Rolf E

    2005-01-01

    This introduction to materials science both for students of engineering and physics and for the interested general public examines not only the physical and engineering properties of virtually all kinds of materials, but also their history, uses, development, and some of the implications of resource depletion and recycling. It covers all topics on materials from an entirely novel perspective: the role materials have played throughout history in the development of humankind and technologies. Specifically, it shows the connection between the technical and the cultural, economic, ecological, and societal aspects of materials science. It aims to whet the appetite of its readers and inspire them to further explore the properties and applications of metals, alloys, ceramics, plastics, and electronic materials by presenting easily understandable explanations and entertaining historical facts. It is also intended to raise the reader’s awareness of their obligations to society as practicing engineers and scientists....

  2. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    ... Public Lectures · Lecture Workshops · Refresher Courses · Symposia · Live Streaming. Home; Journals; Bulletin of Materials Science; Volume 39; Issue 5. Synthesis and luminescence properties of Tb 3 + − d o p e d L i M g P O _4$ phosphor. C B PALAN N S BAJAJ A SONI S K OMANWAR. Volume 39 Issue 5 September ...

  3. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 36; Issue 4. Investigation of localization effect in GaN-rich InGaN alloys and modified band-tail model. Chuan-Zhen Zhao Bin Liu De-Yi Fu Hui Chen Ming Li Xiang-Qian Xiu Zi-Li Xie Shu-Lin Gu You-Dou Zheng. Volume 36 Issue 4 August 2013 pp 619-622 ...

  4. Nature of science in instruction materials of science through the model of educational reconstruction

    Science.gov (United States)

    Azizah, Nur; Mudzakir, Ahmad

    2016-02-01

    The study was carried out to reconstruct the science teaching materials charged view of the nature of science (VNOS). This reconstruction process using the Model of Educational Reconstruction (MER), which is the framework for research and development of science education as well as a guide for planning the teaching of science in the schools is limited in two stages, namely: content structure analysis, and empirical studies of learners. The purpose of this study is to obtain a pre-conception of learners and prospective scientists to the topic of the nature of the material and utilization. The method used to descriptive with the instruments is guidelines for interviews for 15 students of class VIII, text analysis sheet, sheet analysis of the concept, and the validation sheet indicators and learning objectives NOS charged on cognitive and affective aspects. The results obtained in the form of pre-conceptions of learners who demonstrate almost 100% of students know the types of materials and some of its nature, the results of the scientist's perspective on the topic of the nature of the material and its use, as well as the results of the validation indicators and learning objectives charged NOS and competencies PISA 2015 cognitive and affective aspects with CVI value of 0.99 and 1.0 after being validated by five experts. This suggests that the indicators and the resulting learning objectives feasible and can proceed to the reconstruction of teaching materials on the topic of material properties and utilization.

  5. Multielement comparison of instrumental neutron activation analysis techniques using reference materials

    International Nuclear Information System (INIS)

    Ratner, R.T.; Vernetson, W.G.

    1995-01-01

    Several instrumental neutron activation analysis techniques (parametric, comparative, and k o -standardization) are evaluated using three reference materials. Each technique is applied to National Institute of Standards and Technology standard reference materials, SRM 1577a (Bovine Liver) and SRM 2704 (Buffalo River Sediment), and the United States Geological Survey standard BHVO-1 (Hawaiian Basalt Rock). Identical (but not optimum) irradiation, decay, and counting schemes are employed with each technique to provide a basis for comparison and to determine sensitivities in a routine irradiation scheme. Fifty-one elements are used in this comparison; however, several elements are not detected in the reference materials due to rigid analytical conditions (e.g. insufficient length of irradiation or activity for radioisotope of interest decaying below the lower limit of detection before counting interval). Most elements are normally distributed around certified or consensus values with a standard deviation of 10%. For some elements, discrepancies are observed and discussed. The accuracy, precision, and sensitivity of each technique are discussed by comparing the analytical results to consensus values for the Hawaiian Basalt Rock to demonstrate the diversity of multielement applications. (author) 4 refs.; 2 tabs

  6. Bulletin of Materials Science | News

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 40; Issue 5. Structural, microstructural and optical properties of Cu 2 ZnSnS 4 thin films prepared by thermal evaporation: effect of substrate temperature and annealing. U CHALAPATHI S UTHANNA V SUNDARA RAJA. Volume 40 Issue 5 September 2017 pp 887-895 ...

  7. Bulletin of Materials Science | News

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 39; Issue 5. Effects of size on mass density and its influence on mechanical and thermal properties of ZrO 2 nanoparticles in different structures. BOTAN JAWDAT ABDULLAH QING JIANG MUSTAFA SAEED OMAR. Volume 39 Issue 5 September 2016 pp 1295-1302 ...

  8. Bulletin of Materials Science | News

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 25; Issue 6. Issue front cover thumbnail. Volume 25, Issue 6. November 2002, pages 449-582. pp 449- .... Bi-layer functionally gradient thick film semiconducting methane sensors .... Thermal sensor properties of PANI(EB)–CSA ( = 0.4 ± 0.1 mol) polymer thin films.

  9. Bulletin of Materials Science | News

    Indian Academy of Sciences (India)

    The studies clearly indicate that the synthesized Y2O3 nanoparticle is a crystalline material with a particle size from 23 to 66 nm. Further analysis ... M Sundrarajan1. Advanced Green Chemistry Lab, Department of Industrial Chemistry, School of Chemical Sciences, Alagappa University, Karaikudi 630 003, Tamil Nadu, India ...

  10. Bulletin of Materials Science | News

    Indian Academy of Sciences (India)

    Home; Journals; Bulletin of Materials Science; Volume 29; Issue 1. Issue front cover thumbnail. Volume 29, Issue 1. February 2006, pages 1-99. pp 1-5 Nanomaterials. A simple synthesis and characterization of CuS nanocrystals · Ujjal K Gautam Bratindranath Mukherjee · More Details Abstract Fulltext PDF. Water-soluble ...

  11. Nanofluidics: A New Arena for Materials Science.

    Science.gov (United States)

    Xu, Yan

    2018-01-01

    A significant growth of research in nanofluidics is achieved over the past decade, but the field is still facing considerable challenges toward the transition from the current physics-centered stage to the next application-oriented stage. Many of these challenges are associated with materials science, so the field of nanofluidics offers great opportunities for materials scientists to exploit. In addition, the use of unusual effects and ultrasmall confined spaces of well-defined nanofluidic environments would offer new mechanisms and technologies to manipulate nanoscale objects as well as to synthesize novel nanomaterials in the liquid phase. Therefore, nanofluidics will be a new arena for materials science. In the past few years, burgeoning progress has been made toward this trend, as overviewed in this article, including materials and methods for fabricating nanofluidic devices, nanofluidics with functionalized surfaces and functional material components, as well as nanofluidics for manipulating nanoscale materials and fabricating new nanomaterials. Many critical challenges as well as fantastic opportunities in this arena lie ahead. Some of those, which are of particular interest, are also discussed. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  12. SemMat: Federated Semantic Services Platform for Open materials Science and Engineering

    Science.gov (United States)

    2017-01-01

    SEMMAT: FEDERATED SEMANTIC SERVICES PLATFORM FOR OPEN MATERIALS SCIENCE AND ENGINEERING WRIGHT STATE UNIVERSITY JANUARY 2017 FINAL TECHNICAL...COVERED (From - To) JUL 2013 – JUN 2016 4. TITLE AND SUBTITLE SemMat: FEDERATED SEMANTIC SERVICES PLATFORM FOR OPEN MATERIALS SCIENCE AND ENGINEERING...models to represent materials data. This provides a data exchange scheme for materials science , which also includes provenance information to promote

  13. General and special engineering materials science. Vol. 2

    International Nuclear Information System (INIS)

    Anderko, K.; Kummerer, K.R.; Ondracek, G.

    1983-04-01

    The present report about general and special engineering materials science is the result of lectures given by the authors in two terms in 1982 at Instituto Balseiro, San Carlos de Bariloche, the graduated college of the Universidad de Cuyo and Comision Nacional de Energia Atomica, Republica Argentina. These lectures were organised in the frame of the project ''nuclear engineering'' (ARG/78/020) of the United Nations Development Program (UNDP) by the International Atomic Energy Agency (IAEA). Some chapters of the report are written in English, others in Spanish. The report is subdivided into three volumes. The present volume II concerns special engineering materials science with respect to nuclear materials under normal reactor operation conditions including 1. reactor clad and structural materials, 2. nuclear fuels and fuel elements, 3. nuclear waste as a materials viewpoint. (orig./IHOE) [de

  14. Development of a certified reference materials for composition of citric acid

    Directory of Open Access Journals (Sweden)

    D. H. Kulev

    2014-01-01

    Full Text Available The paper presents a summary of analyzing Technical Regulations of the Customs Union TR TC 029/2012 "Safety Requirements for Food Additives, Flavorings and Technological Processing Aids". Information on certified reference materials (RMs for composition of citric acid is provided. Certified characteristics of the RM are, on the one hand, mass fraction of the base substance and, on the other hand, mass fraction of impurities - toxic elements (lead, arsenic, cadmium, mercury. The first batches of the given RMs are produced, which are registered in the State Register of the approved types of certified reference materials GS010300-2013 and GS010143-2012.

  15. REFERENCE MATERIALS SYSTEM OF SCIENTIFIC METHODICAL CENTRE OF STATE SERVICE OF REFERENCE MATERIALS FOR COMPOSITION AND PROPERTIES OF SUBSTANCES AND MATERIALS URAL RESEARCH INSTITUTE FOR METROLOGY

    Directory of Open Access Journals (Sweden)

    E. V. Osinseva

    2015-01-01

    Full Text Available Since 1960s UNIIM performs research in the field of needs in reference materials of composition and properties of substances and materials (RM as well as develops it. During the research UNIIM has developed 757 types of RMs for metrological measurement assurance of factors of composition and properties of substance and materials for test laboratories of chemical, pharmaceutical, fuel, food industry, agriculture, metallurgy and ecological monitoring laboratories. List ofRMs enlarges thanks to development of UNIIM standards and transmission measurement facility from State standards of units. Taking into account the actual requirements in the field of measurements, the UNIIM's key destination is to assure the accuracy and the metrological traceability of measurements. The present-day system of RMs to be developed in UNIIM includes RMs of composition of inorganic and organic compounds and their solutions, fuels, stable isotopic materials, water, grounds, food products, biomaterials, nanomaterials, metals, alloys and other materials offerrous and non-ferrous industry, RMs of properties (thermodynamic, magnetic, physical-chemical, technical of substances and materials. The present article considers history of RMs list development which were created by UNIIM and the strategy of this direction.

  16. Proposals for the use of reference materials and for the development of in-house quality control materials for food analysis

    International Nuclear Information System (INIS)

    Ihnat, Milan

    2002-01-01

    A summary is presented of factors to be considered in the development of food-based in-house quality control materials to augment available Reference Materials and for frequent, concerted data quality control. Some guidelines are offered regarding approaches to the many considerations required for such an endeavour. Preliminary draft recommendations containing a sequence of steps has been compiled as a starting proposal for a food quality control material development scheme, for a range of natural matrices and measurands. In addition, information on the selection and utilization of Certified Reference Materials and procedures for performance interpretation and corrective action is provided. (author)

  17. Special issue on "Frontiers in Materials Science: Condensed matters"

    Science.gov (United States)

    Hoang, Nam-Nhat; Yamamoto, Tomoyuki; Pham, Duc-Thang

    2018-03-01

    This special issue includes the editor-invited and selected papers from 3rd International Symposium on Frontiers in Materials Science (FMS2016), held in Hanoi, Vietnam, from the 28th to 30th of September 2016, which coincided with the 65th anniversary of the Faculty of Physics, Hanoi University of Education. The FMS2016 is a continuation of a series of meetings starting from 2010. A first event was a bilateral Vietnamese-German meeting in Hanoi, Vietnam, in 2010, and the second one was held in Frankfurt, Germany, in 2011. The idea at that time was to initiate interactions between scientists from both countries and to further develop the field of materials science in Southeast Asia. After these successful bilateral meetings, a next step was taken by advancing the format of the symposium into an international event. In 2013, the 1st International Symposium on Frontiers in Materials Science (FMS2013) was successfully organized in Hanoi, which followed 2nd symposium, FMS2015, in Tokyo, in 2015. The FMS2016 continues this idea of providing an international forum for physicists, material scientists and chemists for discussing their latest results and the recent developments in the important field of materials science.

  18. Models and Materials: Bridging Art and Science in the Secondary Curriculum

    Science.gov (United States)

    Pak, D.; Cavazos, L.

    2006-12-01

    Creating and sustaining student engagement in science is one challenge facing secondary teachers. The visual arts provide an alternative means of communicating scientific concepts to students who may not respond to traditional formats or identify themselves as interested in science. We have initiated a three-year teacher professional development program at U C Santa Barbara focused on bridging art and science in secondary curricula, to engage students underrepresented in science majors, including girls, English language learners and non-traditional learners. The three-year format provides the teams of teachers with the time and resources necessary to create innovative learning experiences for students that will enhance their understanding of both art and science content. Models and Materials brings together ten secondary art and science teachers from six Santa Barbara County schools. Of the five participating science teachers, three teach Earth Science and two teach Life Science. Art and science teachers from each school are teamed and challenged with the task of creating integrated curriculum projects that bring visual art concepts to the science classroom and science concepts to the art classroom. Models and Materials were selected as unifying themes; understanding the concept of models, their development and limitations, is a prominent goal in the California State Science and Art Standards. Similarly, the relationship between composition, structure and properties of materials is important to both art and science learning. The program began with a 2-week institute designed to highlight the natural links between art and science through presentations and activities by both artists and scientists, to inspire teachers to develop new ways to present models in their classrooms, and for the teacher teams to brainstorm ideas for curriculum projects. During the current school year, teachers will begin to integrate science and art and the themes of modeling and materials

  19. Materials Science Research Rack Onboard the International Space Station

    Science.gov (United States)

    Reagan, Shawn; Frazier, Natalie; Lehman, John

    2016-01-01

    The Materials Science Research Rack (MSRR) is a research facility developed under a cooperative research agreement between NASA and ESA for materials science investigations on the International Space Station (ISS). MSRR was launched on STS-128 in August 2009 and currently resides in the U.S. Destiny Laboratory Module. Since that time, MSRR has logged more than 1400 hours of operating time. The MSRR accommodates advanced investigations in the microgravity environment on the ISS for basic materials science research in areas such as solidification of metals and alloys. The purpose is to advance the scientific understanding of materials processing as affected by microgravity and to gain insight into the physical behavior of materials processing. MSRR allows for the study of a variety of materials, including metals, ceramics, semiconductor crystals, and glasses. Materials science research benefits from the microgravity environment of space, where the researcher can better isolate chemical and thermal properties of materials from the effects of gravity. With this knowledge, reliable predictions can be made about the conditions required on Earth to achieve improved materials. MSRR is a highly automated facility with a modular design capable of supporting multiple types of investigations. The NASA-provided Rack Support Subsystem provides services (power, thermal control, vacuum access, and command and data handling) to the ESA-developed Materials Science Laboratory (MSL) that accommodates interchangeable Furnace Inserts (FI). Two ESA-developed FIs are presently available on the ISS: the Low Gradient Furnace (LGF) and the Solidification and Quenching Furnace (SQF). Sample Cartridge Assemblies (SCAs), each containing one or more material samples, are installed in the FI by the crew and can be processed at temperatures up to 1400?C. ESA continues to develop samples with 14 planned for launch and processing in the near future. Additionally NASA has begun developing SCAs to

  20. Bulletin of Materials Science | News

    Indian Academy of Sciences (India)

    ... Lecture Workshops · Refresher Courses · Symposia · Live Streaming. Home; Journals; Bulletin of Materials Science; Volume 36; Issue 6. Self-assembling behaviour of Pt nanoparticles onto surface of TiO2 and their resulting photocatalytic activity. M Qamar Ashok K Ganguli. Volume 36 Issue 6 November 2013 pp 945-951 ...

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