Nano-ceramics and its molding technologies

International Nuclear Information System (INIS)

Liu Jian; Xu Yunshu

2007-01-01

Nano-ceramics and its related knowledge were introduced. Fabrication of nano-ceramic powder, as well as the molding and sintering technologies of nano-ceramics were reviewed. Features of the present molding technologies were analyzed. The applications of nano-ceramics were prospected. (authors)

A review of non-contact micro- and nano-printing technologies

International Nuclear Information System (INIS)

Ru, Changhai; Sun, Yu; Luo, Jun; Xie, Shaorong

2014-01-01

Printing technologies have undergone signficant development because they are an enabler in science and engineering research; they also have significant practical applications in manufacturing. Micro- and nano-printing techniques have found a number of applications in electronics, biotechnology, and material synthesis/patterning. In this review, we look at the important printing methods, including high precision traditional printing methods as well as recently emerging techniques. We also discuss the materials that are printable by these technologies, the challenges for future development, and the applications of micro- and nano-printing. (topical review)

A review of non-contact micro- and nano-printing technologies

Science.gov (United States)

Ru, Changhai; Luo, Jun; Xie, Shaorong; Sun, Yu

2014-05-01

Printing technologies have undergone signficant development because they are an enabler in science and engineering research; they also have significant practical applications in manufacturing. Micro- and nano-printing techniques have found a number of applications in electronics, biotechnology, and material synthesis/patterning. In this review, we look at the important printing methods, including high precision traditional printing methods as well as recently emerging techniques. We also discuss the materials that are printable by these technologies, the challenges for future development, and the applications of micro- and nano-printing.

ACCELERATING NANO-TECHNOLOGICAL

DEFF Research Database (Denmark)

Jensen, Jens Stissing; Koch, Christian

2007-01-01

By viewing the construction industry as a technological innovation system (TIS) this paper discusses possible initiatives to accelerate nanotechnological innovations. The point of departure is a recent report on the application of nano-technology in the Danish construction industry, which concludes...... of the system are furthermore poorly equipped at identifying potentials within high-tech areas. In order to exploit the potentials of nano-technology it is thus argued that an alternative TIS needs to be established. Initiatives should identify and support “incubation rooms” or marked niches in order...

Nano Manufacturing - Products and Technologies

DEFF Research Database (Denmark)

Hansen, Hans Nørgaard; Alting, Leo

2004-01-01

The use of micro and nano technologies in components and products not only sets new demands to the manufacturing technologies. Product concepts have to be rethought and redefined in order to implement the micro and nano technologies into functional systems. Both a technology driven and a product ...

Technology modules from micro- and nano-electronics for the life sciences.

Science.gov (United States)

Birkholz, M; Mai, A; Wenger, C; Meliani, C; Scholz, R

2016-05-01

The capabilities of modern semiconductor manufacturing offer remarkable possibilities to be applied in life science research as well as for its commercialization. In this review, the technology modules available in micro- and nano-electronics are exemplarily presented for the case of 250 and 130 nm technology nodes. Preparation procedures and the different transistor types as available in complementary metal-oxide-silicon devices (CMOS) and BipolarCMOS (BiCMOS) technologies are introduced as key elements of comprehensive chip architectures. Techniques for circuit design and the elements of completely integrated bioelectronics systems are outlined. The possibility for life scientists to make use of these technology modules for their research and development projects via so-called multi-project wafer services is emphasized. Various examples from diverse fields such as (1) immobilization of biomolecules and cells on semiconductor surfaces, (2) biosensors operating by different principles such as affinity viscosimetry, impedance spectroscopy, and dielectrophoresis, (3) complete systems for human body implants and monitors for bioreactors, and (4) the combination of microelectronics with microfluidics either by chip-in-polymer integration as well as Si-based microfluidics are demonstrated from joint developments with partners from biotechnology and medicine. WIREs Nanomed Nanobiotechnol 2016, 8:355-377. doi: 10.1002/wnan.1367 For further resources related to this article, please visit the WIREs website. © 2015 Wiley Periodicals, Inc.

Issues in nano technologies for Australia

International Nuclear Information System (INIS)

Tegart, G.

2007-01-01

The Australian Government in late 2005 created a National Nano technology Taskforce that produced a paper, 'Options for a National Nano technology Strategy', in November last year. As an input to the National Nano technology Strategy Taskforce, in early 2006 the National Academies Forum was contracted by the Department of Industry, Tourism and Resources to produce a report Environmental, Social, Legal and Ethical Aspects of the Development of Nano technologies in Australia (which is available at www.naf.org.au/symposia). The report drew on the expertise of Fellows from the four academies in workshops in Melbourne and Sydney and from discussions with other experts, and expressed its outcomes as a set of opinions to assist in developing guidelines for a National Nano technology Strategy

6. international conference on Nano-technology in Carbon: from synthesis to applications of nano-structured carbon and related materials

International Nuclear Information System (INIS)

2004-01-01

This is the sixth international conference sponsored this year by the French Carbon Group (GFEC), the European Research Group on Nano-tubes GDRE 'Nano-E', in collaboration with the British Carbon Group and the 'Institut des Materiaux Jean Rouxel' (local organizer). The aim of this conference is to promote carbon science in the nano-scale as, for example, nano-structured carbons, nano-tubes, nano-wires, fullerenes, etc. This conference is designed to introduce those with an interest in materials to current research in nano-technology and to bring together research scientists working in various disciplines in the broad area of nano-structured carbons, nano-tubes and fullerene-related nano-structures. Elemental carbon is the simplest exemplar of this nano-technology based on covalent bonding, however other systems (for example containing hetero-atoms) are becoming important from a research point of view, and provide alternative nano-materials with unique properties opening a broad field of applications. Nano-technology requires an understanding of these materials on a structural and textural point of view and this will be the central theme. This year the conference will feature sessions on: S1. Control and synthesis of nano-materials 1.1 Nano-structured carbons: pyrolysis of polymers, activation, templates,... 1.2 Nano-tubes: Catalytic method, HiPCO, graphite vaporization, electrolysis,... 1.3 Fullerenes S2. Chemistry of carbon nano-materials 2.1 Purification of carbon nano-tubes 2.2 Functionalization - Self-assembling S3. Structural characterization S4. Theory and modelling S5. Relationship between structure and properties S6. Applications Water and air purification, Gas and energy storage, Composite materials, Field emission, Nano-electronics, Biotechnology,... S7. Environmental impact. Only one paper concerning carbon under irradiation has been added to the INIS database. (authors)

Nano market and analysis of technology

International Nuclear Information System (INIS)

2001-10-01

This book gives descriptions of summary of nano technology with meaning, character and field, trend of technical development in domestic, current condition of nano basic research in domestic, trend of technical development in foreign country such as summary, trend of technology by industrial field, machine and metronics, material and process, standard of nano mechanism, scale of market and trend, competitiveness of nano technology of major country and research development system in Japan, Korean company and major countries.

Energy challenge and nano-sciences

International Nuclear Information System (INIS)

Romulus, Anne-Marie; Chamelot, Pierre; Chaudret, Bruno; Comtat, Maurice; Fajerwerg, Katia; Philippot, Karine; Geoffron, Patrice; Lacroix, Jean-Christophe; Abanades, Stephane; Flamant, Gilles; HUERTA-ORTEGA, Benjamin; Cezac, Pierre; Lincot, Daniel; Roncali, Jean; Artero, Vincent; GuiLLET, Nicolas; Fauvarque, Jean-Francois; Simon, Patrice; Taberna, Pierre-Louis

2013-01-01

This book first describes the role of energy in the development of nano-sciences, discusses energy needs, the perception of nano-sciences by societies as far as the energy challenge is concerned, describes the contribution of nano-catalyzers to energy and how these catalyzers are prepared. A second part addresses the new perspectives regarding carbon: production of biofuels from biomass, process involved in CO 2 geological storage, improvement of solar fuel production with the use of nano-powders. The third part describes the new orientations of solar energy: contribution of the thin-layer inorganic sector to photovoltaic conversion, perspectives for organic photovoltaic cells, operation of new dye-sensitized nanocrystalline solar cells. The fourth part addresses the hydrogen sector: credibility, contribution of biomass in hydrogen production, production of hydrogen by electrochemistry, new catalyzers for electrolyzers and fuel cells. The last part address improved electrochemical reactors

Nano Materials

International Nuclear Information System (INIS)

Jin, In Ju; Lee, Ik Mo; Kwon, Yeung Gu

2006-02-01

This book introduces background of nano science such as summary, plenty room at the bottom, access way to nano technique, nanoparticles using bottom-up method which are a marvel of nature, and modern alchemy : chemical synthesis of artificial nano structure, understanding of quantum mechanics, STM/AFM, nano metal powder, ceramic nanoparticles, nano structure film, manufacture of nanoparticles using reverse micelle method, carbon nano tube, sol-gel material, nano energy material, nano catalyst nano bio material technology and spintronics.

Micro/nano-fabrication technologies for cell biology.

Science.gov (United States)

Qian, Tongcheng; Wang, Yingxiao

2010-10-01

Micro/nano-fabrication techniques, such as soft lithography and electrospinning, have been well-developed and widely applied in many research fields in the past decade. Due to the low costs and simple procedures, these techniques have become important and popular for biological studies. In this review, we focus on the studies integrating micro/nano-fabrication work to elucidate the molecular mechanism of signaling transduction in cell biology. We first describe different micro/nano-fabrication technologies, including techniques generating three-dimensional scaffolds for tissue engineering. We then introduce the application of these technologies in manipulating the physical or chemical micro/nano-environment to regulate the cellular behavior and response, such as cell life and death, differentiation, proliferation, and cell migration. Recent advancement in integrating the micro/nano-technologies and live cell imaging are also discussed. Finally, potential schemes in cell biology involving micro/nano-fabrication technologies are proposed to provide perspectives on the future research activities.

Nanofabrication Technology for Production of Quantum Nano-Electronic Devices Integrating Niobium Electrodes and Optically Transparent Gates

Science.gov (United States)

2018-01-01

TECHNICAL REPORT 3086 January 2018 Nanofabrication Technology for Production of Quantum Nano-electronic Devices Integrating Niobium Electrodes...work described in this report was performed for the by the Advanced Concepts and Applied Research Branch (Code 71730) and the Science and Technology ...Applied Sciences Division iii EXECUTIVE SUMMARY This technical report demonstrates nanofabrication technology for Niobium heterostructures and

NanoJapan: international research experience for undergraduates program: fostering U.S.-Japan research collaborations in terahertz science and technology of nanostructures

Science.gov (United States)

Phillips, Sarah R.; Matherly, Cheryl A.; Kono, Junichiro

2014-09-01

The international nature of science and engineering research demands that students have the skillsets necessary to collaborate internationally. However, limited options exist for science and engineering undergraduates who want to pursue research abroad. The NanoJapan International Research Experience for Undergraduates Program is an innovative response to this need. Developed to foster research and international engagement among young undergraduate students, it is funded by a National Science Foundation Partnerships for International Research and Education (PIRE) grant. Each summer, NanoJapan sends 12 U.S. students to Japan to conduct research internships with world leaders in terahertz (THz) spectroscopy, nanophotonics, and ultrafast optics. The students participate in cutting-edge research projects managed within the framework of the U.S-Japan NSF-PIRE collaboration. One of our focus topics is THz science and technology of nanosystems (or `TeraNano'), which investigates the physics and applications of THz dynamics of carriers and phonons in nanostructures and nanomaterials. In this article, we will introduce the program model, with specific emphasis on designing high-quality international student research experiences. We will specifically address the program curriculum that introduces students to THz research, Japanese language, and intercultural communications, in preparation for work in their labs. Ultimately, the program aims to increase the number of U.S. students who choose to pursue graduate study in this field, while cultivating a generation of globally aware engineers and scientists who are prepared for international research collaboration.

Recent trends in physics of material science and technology

CERN Document Server

Shrivastava, Keshav; Akhtar, Jamil

2015-01-01

This book discusses in detail the recent trends in Computational Physics, Nano-physics and Devices Technology. Numerous modern devices with very high accuracy, are explored In conditions such as longevity and extended possibilities to work in wide temperature and pressure ranges, aggressive media, etc. This edited volume presents 32 selected papers  of the 2013 International Conference on Science & Engineering in Mathematics, Chemistry and Physics . The book is divided into three  scientific Sections: (i) Computational Physics, (ii) Nanophysics and Technology, (iii) Devices and Systems and is addressed to Professors, post-graduate students, scientists and engineers taking part in R&D of nano-materials, ferro-piezoelectrics, computational Physics and devices system, and also different devices based on broad applications in different areas of modern science and technology.

CONVERGENCE OF NANO-, BIO-, INFO-, COGNITIVE TECHNOLOGIES AND E-CULTURE

Directory of Open Access Journals (Sweden)

Sergey I. Rodzin

2014-01-01

Full Text Available The article analyzes the convergence of nano-, bio-, info- and cognitive technologies. We highlight the close relationship of such notions as “e-culture”, “consciousness”, “artificial intelligence”. Artificial intelligence technology is the meta-NBIC-complex itself. Electronic infrastructure of intellectual activity - the essence of artificial intelligence and artificial intelligence technologies play a meta-level role of NBIC- technologies, being significant for e-culture. Development of science, technology, and education suggests that in the future perhaps a radical transformation in human beings is not only the material world, but also a subjective reality. 

Synchronized femtosecond laser pulse switching system based nano-patterning technology

Science.gov (United States)

Sohn, Ik-Bu; Choi, Hun-Kook; Yoo, Dongyoon; Noh, Young-Chul; Sung, Jae-Hee; Lee, Seong-Ku; Ahsan, Md. Shamim; Lee, Ho

2017-07-01

This paper demonstrates the design and development of a synchronized femtosecond laser pulse switching system and its applications in nano-patterning of transparent materials. Due to synchronization, we are able to control the location of each irradiated laser pulse in any kind of substrate. The control over the scanning speed and scanning step of the laser beam enables us to pattern periodic micro/nano-metric holes, voids, and/or lines in various materials. Using the synchronized laser system, we pattern synchronized nano-holes on the surface of and inside various transparent materials including fused silica glass and polymethyl methacrylate to replicate any image or pattern on the surface of or inside (transparent) materials. We also investigate the application areas of the proposed synchronized femtosecond laser pulse switching system in a diverse field of science and technology, especially in optical memory, color marking, and synchronized micro/nano-scale patterning of materials.

Nano-scale Materials and Nano-technology Processes in Environmental Protection

International Nuclear Information System (INIS)

Vissokov, Gh; Tzvetkoff, T.

2003-01-01

A number of environmental and energy technologies have benefited substantially from nano-scale technology: reduced waste and improved energy efficiency; environmentally friendly composite structures; waste remediation; energy conversion. In this report examples of current achievements and paradigm shifts are presented: from discovery to application; a nano structured materials; nanoparticles in the environment (plasma chemical preparation); nano-porous polymers and their applications in water purification; photo catalytic fluid purification; hierarchical self-assembled nano-structures for adsorption of heavy metals, etc. Several themes should be considered priorities in developing nano-scale processes related to environmental management: 1. To develop understanding and control of relevant processes, including protein precipitation and crystallisation, desorption of pollutants, stability of colloidal dispersion, micelle aggregation, microbe mobility, formation and mobility of nanoparticles, and tissue-nanoparticle interaction. Emphasis should be given to processes at phase boundaries (solid-liquid, solid-gas, liquid-gas) that involve mineral and organic soil components, aerosols, biomolecules (cells, microbes), bio tissues, derived components such as bio films and membranes, and anthropogenic additions (e.g. trace and heavy metals); 2. To carry out interdisciplinary research that initiates Noel approaches and adopts new methods for characterising surfaces and modelling complex systems to problems at interfaces and other nano-structures in the natural environment, including those involving biological or living systems. New technological advances such as optical traps, laser tweezers, and synchrotrons are extending examination of molecular and nano-scale processes to the single-molecule or single-cell level; 3. To integrate understanding of the roles of molecular and nano-scale phenomena and behaviour at the meso- and/or macro-scale over a period of time

VLSI micro- and nanophotonics science, technology, and applications

CERN Document Server

Lee, El-Hang; Razeghi, Manijeh; Jagadish, Chennupati

2011-01-01

Addressing the growing demand for larger capacity in information technology, VLSI Micro- and Nanophotonics: Science, Technology, and Applications explores issues of science and technology of micro/nano-scale photonics and integration for broad-scale and chip-scale Very Large Scale Integration photonics. This book is a game-changer in the sense that it is quite possibly the first to focus on ""VLSI Photonics"". Very little effort has been made to develop integration technologies for micro/nanoscale photonic devices and applications, so this reference is an important and necessary early-stage pe

Nano- and micro-electromechanical systems fundamentals of nano- and microengineering

CERN Document Server

Lyshevski, Sergey Edward

2005-01-01

NANOTECHNOLOGY AND MICROTECHNOLOGY (NANO- AND MICRO- SCIENCE, ENGINEERING AND TECHNOLOGY), AND BEYOND Introduction and Overview: From Micro- to Nano- and Beyond to Stringo-Scale Introductory Definitions to the Subjects Current Developments and Needs for Coherent Revolutionary Developments Societal Challenges and Implications NANO- AND MICROSCALE SYSTEMS, DEVICES, AND STRUCTURES Sizing Features: From Micro- to Nano-, and from Nano- to Stringo-Scale MEMS and NEMS Definitions Introduction to Taxonomy of Nano- and Microsystem Synthesis and Design Introduction to Design and Optimization of Nano- and Microsystems in the Behavioral Domain NANO- AND MICROSYSTEMS: CLASSIFICATION AND CONSIDERATION Biomimetics, Biological Analogies,and Design of NEMS and MEMS Micro- and Nanoelectromechanical Systems: Scaling Laws and Mathematical Modeling MEMS Examples and MEMS Architectures Introduction to Microfabrication and Micromachining FUNDAMENTALS OF MICROFABRICATION AND MEMS FABRICATION TECHNOLOGIES Introducti...

NST and NST integration: nuclear science and technique and nano science and technique

International Nuclear Information System (INIS)

Zhao Yuliang; Chai Zhifang; Liu Yuanfang

2008-01-01

Nuclear science is considered as a big science and also the frontier in the 20 th century, it developed many big scientific facilities and many technique platforms (e.g., nuclear reactor, synchrotron radiation, accelerator, etc.) Nuclear Science and Technology (NST) provide us with many unique tools such as neutron beams, electron beams, gamma rays, alpha rays, beta rays, energetic particles, etc. These are efficient and essential probes for studying many technique and scientific issues in the fields of new materials, biological sciences, environmental sciences, life sciences, medical science, etc. Nano Science and Technology (NST) is a newly emerging multidisciplinary science and the frontier in the 21 st century, it is expected to dominate the technological revolution in diverse aspects of our life. It involves diverse fields such as nanomaterials, nanobiological sciences, environmental nanotechnology, nanomedicine, etc. nanotechnology was once considered as a futuristic science with applications several decades in the future and beyond. But, the rapid development of nanotechnology has broken this prediction. For example, diverse types of manufactured nanomaterials or nanostructures have been currently utilized in industrial products, semiconductors, electronics, stain-resistant clothing, ski wax, catalysts, other commodity products such as food, sunscreens, cosmetics, automobile parts, etc., to improve their performance of previous functions, or completely create novel functions. They will also be increasingly utilized in medicines for purposes of clinic therapy, diagnosis, and drug delivery. In the talk, we will discuss the possibility of NST-NST integration: how to apply the unique probes of advanced radiochemical and nuclear techniques in nanoscience and nanotechnology. (authors)

Nano materials for Medical and Dental Applications

International Nuclear Information System (INIS)

Yub Kwon, T.; Oh, D.S.; Narayanan, R.

2015-01-01

Welcome to this special issue. Nano science and nano technology concepts are applicable across all fields of science and a more widespread application of nano materials and nano technologies is imminent or already occurring in many areas, including health care. Today is scientists take those cutting-edge technologies and concepts and apply them to medicine and dentistry. They are finding a wide variety of ways to make medical and dental materials at the nano scale to take advantage of their enhanced physical and biological properties.The purpose of this special issue is to publish high-quality research papers as well as review articles addressing recent advances in the field of nano materials for medical and dental applications. A particular interest is given to papers exploring or discussing nano materials and nano technologies related to delivery system, bonding substitutes, and surface modification techniques applicable in these areas. For this special issue, several investigators were invited to contribute original research findings that can stimulate continuing efforts to understand the cutting-edge applications of nano materials in medicine and dentistry.

Chemical Functionalization, Self-Assembly, and Applications of Nano materials and Nano composites 2014

International Nuclear Information System (INIS)

Yan, X.; Jiao, T.; Balan, L.; Chen, X.; Hu, M.Z.; Liu, W.

2014-01-01

The growing interests in nano materials and nano composites call for the development of processing techniques to obtain multiple functionalization nano structures and achieve the tailoring of specific features of the nanometer size. Functional nano materials and nano composites will expand the applied range of the original material and at the same time promote the development of inter discipline. Thus, the chemical functionalization and bottom-up assemblies of nano materials and subsequent applications will accelerate the development of nano science and nano technology.

Handbook of nano-optics and nanophotonics

CERN Document Server

2013-01-01

In the 1990s, optical technology and photonics industry developed fast, but further progress became difficult due to a fundamental limit of light known as the diffraction limit. This limit could be overcome using the novel technology of nano-optics or nanophotonics in which the size of the electromagnetic field is decreased down to the nanoscale and is used as a carrier for signal transmission, processing, and fabrication. Such a decrease beyond the diffraction limit is possible by using optical near-fields. The true nature of nano-optics and nanophotonics involves not only their abilities to meet the above requirements but also their abilities to realize qualitative innovations in photonic devices, fabrication techniques, energy conversion and information processing systems. The objective of this work is to review the innovations of optical science and technology by nano-optics and nanophotonics. While in conventional optical science and technology, light and matter are discussed separately, in nano-optics a...

Nano technologies for Biosensor and Bio chip

International Nuclear Information System (INIS)

Kim, I.M.; Park, T.J.; Paskaleva, E.E.; Sun, F.; Seo, J.W.; Mehta, K.K.

2015-01-01

The bio sensing devices are characterized by their biological receptors, which have specificity to their corresponding analytes. These analytes are a vast and diverse group of biological molecules, DNAs, proteins (such as antibodies), fatty acids, or entire biological systems, such as pathogenic bacteria, viruses, cancerous cells, or other living organisms. A main challenge in the development of biosensor applications is the efficient recognition of a biological signal in a low signal-to-noise ratio environment, and its transduction into an electrochemical, optical, or other signals. The advent of nano material technology greatly increased the potential for achieving exquisite sensitivity of such devises, due to the innate high surface-to-volume ratio and high reactivity of the nano material. The second major challenge facing the biosensor application, that of sca lability, is addressed by multiplexing and miniaturizing of the biosensor devises into a bio chip. In recent years, biosensor and bio chip technologies have made significant progress by taking advantages of diverse kinds of nano materials that are derived from nano technology

Environmental science and technology

International Nuclear Information System (INIS)

2014-01-01

The Program on Environmental Science and Technology developed at the Chemical and Environmental Technology Center comprehends environmental chemistry (water, soil and atmospheric chemistry), clean technologies (desulfurization of diesel and oil, biodegradable polymers and structural modification of polymers, recycling, pyrolysis of dangerous chemicals by molten salt technology), nanotechnology (magnetic nanoparticles, dendrimers, nano biomarkers, catalysts) and chemical characterization of nuclear fuel and nuclear fuel cycle waste (chemical and isotopic characterization). The Chemical and Environmental Technology Center was established in 1995, as an evolution of the former Department of Chemistry Engineering (1970). The program on environment science and technology was structured as consequence of the continuous growth of environmental activities on areas related to nuclear programs of IPEN. Moreover, it was an answer to the society concerning the climate changes and biodiversity preservation. All activities of research and development, services, supervision of graduate and under graduated students and courses performance at the center were related to the development, improvement and establishment of new technologies. The highlights of this period (2011 - 2013) were: - Development and use of modern analytical technology for the characterization of persistent pollutants and endocrine disrupters (metals, PAHA’s, PCBs, Pesticides, hormones, surfactants, plasticizer and human pharmaceuticals) in order to evaluate water quality and/or sediments; - Atmospheric chemistry and greenhouse gases: Evaluating an estimation of surface trace gas fluxes from aircraft measurements above the Amazon; - Cooperation with SABESP (Water and Sewage Company) and CETESB (State Environment Agency) in program for the development of public policies; - Studies and development in biodegradable polymers, polyolefins and advanced methods for polymer and rubber recycling and re-use; - Studies

Environmental science and technology

Energy Technology Data Exchange (ETDEWEB)

NONE

2014-07-01

The Program on Environmental Science and Technology developed at the Chemical and Environmental Technology Center comprehends environmental chemistry (water, soil and atmospheric chemistry), clean technologies (desulfurization of diesel and oil, biodegradable polymers and structural modification of polymers, recycling, pyrolysis of dangerous chemicals by molten salt technology), nanotechnology (magnetic nanoparticles, dendrimers, nano biomarkers, catalysts) and chemical characterization of nuclear fuel and nuclear fuel cycle waste (chemical and isotopic characterization). The Chemical and Environmental Technology Center was established in 1995, as an evolution of the former Department of Chemistry Engineering (1970). The program on environment science and technology was structured as consequence of the continuous growth of environmental activities on areas related to nuclear programs of IPEN. Moreover, it was an answer to the society concerning the climate changes and biodiversity preservation. All activities of research and development, services, supervision of graduate and under graduated students and courses performance at the center were related to the development, improvement and establishment of new technologies. The highlights of this period (2011 - 2013) were: - Development and use of modern analytical technology for the characterization of persistent pollutants and endocrine disrupters (metals, PAHA’s, PCBs, Pesticides, hormones, surfactants, plasticizer and human pharmaceuticals) in order to evaluate water quality and/or sediments; - Atmospheric chemistry and greenhouse gases: Evaluating an estimation of surface trace gas fluxes from aircraft measurements above the Amazon; - Cooperation with SABESP (Water and Sewage Company) and CETESB (State Environment Agency) in program for the development of public policies; - Studies and development in biodegradable polymers, polyolefins and advanced methods for polymer and rubber recycling and re-use; - Studies

Pharmaceutical Applications of Polymeric Nano materials

International Nuclear Information System (INIS)

Wu, L.; Sun, L.

2011-01-01

With significant attention focused on nano science and nano technology in recent years, nano materials have been used in a wide variety of applications such as automotive, environmental, energy, catalysis, biomedical, drug delivery, and polymeric industries. Among those fields, the application of nano materials with pharmaceutical science is an emerging and rapidly growing field and has drawn increasing attention recently. Research and development in this field is mainly focused on several aspects such as the discoveries of novel functional nano materials, exploration on nanoparticles with controlled and targeted drug delivery characteristics, and investigation of bio functionalized and diagnostic nano materials. In this special issue, we have invited a few papers related to recent advances in pharmaceutical application of polymeric nano materials

1D Nano materials 2012

International Nuclear Information System (INIS)

Yanqiu Zhu, Y.; Ma, R.; Whitby, R.; Acquah, S.

2013-01-01

We witnessed an initial hyped period and enthusiasm on carbon nano tubes in the 1990s later went through a significant expansion into nano tubes of other materials (metal di chalcogenides, boron nitride, etc.) as well as various nano wires and nano rods. While much of the hype might have gone, the research on one-dimensional (1D) nano materials has matured as one of the most active research areas within the nano science and nano technology community, flourishing with ample, exciting, and new research opportunities. Just like any other research frontier, researchers working in the 1D nano materials field are constantly striving to develop new fundamental science as well as potential applications. It remains a common belief that versatility and tunability of 1D nano materials would challenge many new rising tasks coming from our resource and energy demanding modern society. The traditional semiconductor industry has produced so many devices and systems from transistors, sensors, lasers, and LEDs to more sophisticated solar panels, which are now part of our daily lives. By down sizing the core components or parts to 1D form, one might wonder how fundamentally the dimensionality and morphology would impact the device performance, this is, as always, requiring us to fully understand the structure-property relationship in 1D nano materials. It may be equally crucial in connecting discovery-driven fundamental science to market-driven technology industry concerning potentially relevant findings derived from these novel materials. The importance of a platform that allows active researchers in this field to present their new development in a timely and efficient manner is therefore self-evident. Following the success of two early special issues devoted to 1D nano materials, this is the third one in a row organized by the same group of guest editors, attesting that such a platform has been well received by the readers

The evolution of telemedicine and nano-technology

Science.gov (United States)

Park, Dong Kyun; Young Jung, Eun; Chan Moon, Byung

2012-10-01

This paper will cover definition and history of telemedicine, changes in medical paradigm and roll of telemedicine and roll of nano-technology for evolution of telemedicine. Hypothetically, telemedicine is distance communication for medical purpose and modern definition explains telemedicine as `a system of health care delivery in which physicians examine distant patients through the use of telecommunications technology. Medical service will change to personalized medicine based on gene information to prevent and manage diseases due to decrease of acute diseases, population aging and increase of prevalence in chronic diseases, which means current medical services based on manualized treatment for diseases will change to personalized medicine based on individual gene information. Also, international healthcare will be activated to provide high quality medical services with low cost using developed transportation. Moreover, hospital centered medical services will change to patients centered medical service due to increase of patient's rights. Development in sensor technology is required for telemedicine to be applied as basic infrastructure for medical services. Various researches in nano-biosensor field are conducted due to introduction of new technologies. However, most researches are in fundamental levels that requires more researches for stability and clinical usefulness. Nano technology is expected to achieve innovative development and define new criteria for disease prevention and management.

Emerging areas of Nano and Smart Materials

OpenAIRE

Partha Ghosal

2016-01-01

‘There’s plenty of room at the bottom’ – In 1959, one of the most brilliant physicists the world has ever seen, Richard P. Feynmann, gave us a beautiful introduction to nano-science. Today, after almost seven decades, nano-materials and related technologies are not just a simple extension of regular research and miniaturisation of materials, but have become the prime driver of advancement in science and technology all over the world. Over the past few decades, new societal requirement haveeme...

Proceedings of the 1st CIRP Seminar on Micro and Nano Technology

DEFF Research Database (Denmark)

Hansen, Hans Nørgaard; Alting, Leo

2003-01-01

The present Proceedings of the 1st International CIRP Seminar on Micro and Nano Technology is the result of a CIRP initiative taken by the Working Group on Micro/Nano Technology established in 2002. The CIRP initiative is a recognition of the large potentials that micro/nano technology has...... in improving/enhancing many of the existing products and in forming the basis of a long range of new next generation of products. Micro and nano technology are common phrases used to describe phenomena, components, products etc. related to small dimensions, usually based on functioning principles...... accessible to a large group of customers. Therefore, product development and manufacture is very essential. Therefore this 1st CIRP Seminar represents an important milestone for design and industrial manufacture of products based on micro and nano technology. The Proceedings cover mostly new, interesting...

Label it or ban it? Public perceptions of nano-food labels and propositions for banning nano-food applications

Science.gov (United States)

Chuah, Agnes S. F.; Leong, Alisius D.; Cummings, Christopher L.; Ho, Shirley S.

2018-02-01

The future of nano-food largely hinges on public perceptions and willingness to accept this novel technology. The present study utilizes the scientific literacy model and psychometric paradigm as the key theoretical frameworks to examine the factors influencing public support for labeling and banning of nano-food in Singapore. Using data collected from a nationally representative survey of 1001 respondents, the findings demonstrated that attitudes toward technology, preference for natural product, science knowledge, and risk perception were found to substantially affect public support for both labeling and banning of nano-food. Conversely, attention to food safety news on traditional media and attention to nano-news on new media were only associated with public support for labeling of nano-food. Similarly, benefit perception was only significantly associated with public support for banning of nano-food. Theoretically, these findings support the growing body of literature that argues for the significant role played by predispositions, media use, science knowledge, and risk and benefit perceptions on attitude formation toward nano-food. It serves as the pioneering piece to address the aspect of banning in the field of nano-food. Practically, insights drawn from this study could aid relevant stakeholders in enlisting effecting strategies to convey the benefits of nano-food while mitigating the risk perceptions among the public.

Nano-Satellite Secondary Spacecraft on Deep Space Missions

Science.gov (United States)

Klesh, Andrew T.; Castillo-Rogez, Julie C.

2012-01-01

NanoSat technology has opened Earth orbit to extremely low-cost science missions through a common interface that provides greater launch accessibility. They have also been used on interplanetary missions, but these missions have used one-off components and architectures so that the return on investment has been limited. A natural question is the role that CubeSat-derived NanoSats could play to increase the science return of deep space missions. We do not consider single instrument nano-satellites as likely to complete entire Discovery-class missions alone,but believe that nano-satellites could augment larger missions to significantly increase science return. The key advantages offered by these mini-spacecrafts over previous planetary probes is the common availability of advanced subsystems that open the door to a large variety of science experiments, including new guidance, navigation and control capabilities. In this paper, multiple NanoSat science applications are investigated, primarily for high risk/high return science areas. We also address the significant challenges and questions that remain as obstacles to the use of nano-satellites in deep space missions. Finally, we provide some thoughts on a development roadmap toward interplanetary usage of NanoSpacecraft.

Nano-Science-Engineering-Technology Applications to Food and Nutrition.

Science.gov (United States)

Nakajima, Mitsutoshi; Wang, Zheng; Chaudhry, Qasim; Park, Hyun Jin; Juneja, Lekh R

2015-01-01

Nanoscale Science, Engineering and Technology are applied to Food and Nutrition. Various delivery systems include nanoemulsions, microemulsions, solid lipid nanoparticles, micelles, and liposomes. The nanoscale systems have advantages, such as higher bioavailabitity, and other physicochemical properties. The symposium will provide an overview of the formulation, characterization, and utilization of nanotechnology-based food and nutrition.

MEMS and Nano-Technology Clean Room

Data.gov (United States)

Federal Laboratory Consortium — The MEMS and Nano-Technology Clean Room is a state-of-the-art, 800 square foot, Class 1000-capable facility used for development of micro and sub-micro scale sensors...

Development of Nano technology in High Performance Concrete

International Nuclear Information System (INIS)

Nima Farzadnia; Abang Abdullah Abang Ali; Ramazan Demirboga; Demirboga, R.

2011-01-01

Concrete is the most widely used building material all around the world which has been undergoing many changes aligned with technological advancement. The most recent available type of concrete is high performance concrete which is produced by employing different admixtures both chemical and mineral to enhance mechanical properties and durability. Recently, technology has made it easy for scientist to study nano sized admixtures and their effect on microstructure of concrete. This paper reviews nano particles in cement composites and how they can improve different properties of concrete. (author)

Nano-Bio Quantum Technology for Device-Specific Materials

Science.gov (United States)

Choi, Sang H.

2009-01-01

The areas discussed are still under development: I. Nano structured materials for TE applications a) SiGe and Be.Te; b) Nano particles and nanoshells. II. Quantum technology for optical devices: a) Quantum apertures; b) Smart optical materials; c) Micro spectrometer. III. Bio-template oriented materials: a) Bionanobattery; b) Bio-fuel cells; c) Energetic materials.

Report on surveys in fiscal 2000 on the surveys and researches in relation to nano-technology; 2000 nendo nano technology ni kakawaru chosa kenkyu hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

In order to view over the situation surrounding the nano-technology as a whole, surveys and discussions were given by means of questionnaire and open discussion meetings. In the questionnaire, the answer that the products utilizing nano-scale structure have already been, or scheduled to be put on sale has exceeded half of the total answers. Experts view that the nano-technology is infiltrating steadily into the actual society. In view of the applicable fields, and in the opening discussion meetings, drastic innovation was expected in the industrial technologies in the future not too far away as a dream world, by using the 'nano-technology' that utilizes a principle completely different from the principles that have been practically used. In order to achieve that goal, a recognition was made clear that the braeakthrough in other fields is important, and the field crossing fusion such as coordination with academia, and exchanges between different businesses and different fields is important. In the comparison of competitive edges of Japan, America and Europe, Japan was recognized to possess sufficient competitive power, but the sense of crisis is felt toward the latent technological power of America of the future. (NEDO)

Report on surveys in fiscal 2000 on the surveys and researches in relation to nano-technology; 2000 nendo nano technology ni kakawaru chosa kenkyu hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

In order to view over the situation surrounding the nano-technology as a whole, surveys and discussions were given by means of questionnaire and open discussion meetings. In the questionnaire, the answer that the products utilizing nano-scale structure have already been, or scheduled to be put on sale has exceeded half of the total answers. Experts view that the nano-technology is infiltrating steadily into the actual society. In view of the applicable fields, and in the opening discussion meetings, drastic innovation was expected in the industrial technologies in the future not too far away as a dream world, by using the 'nano-technology' that utilizes a principle completely different from the principles that have been practically used. In order to achieve that goal, a recognition was made clear that the braeakthrough in other fields is important, and the field crossing fusion such as coordination with academia, and exchanges between different businesses and different fields is important. In the comparison of competitive edges of Japan, America and Europe, Japan was recognized to possess sufficient competitive power, but the sense of crisis is felt toward the latent technological power of America of the future. (NEDO)

Hollow Nanospheres Array Fabrication via Nano-Conglutination Technology.

Science.gov (United States)

Zhang, Man; Deng, Qiling; Xia, Liangping; Shi, Lifang; Cao, Axiu; Pang, Hui; Hu, Song

2015-09-01

Hollow nanospheres array is a special nanostructure with great applications in photonics, electronics and biochemistry. The nanofabrication technique with high resolution is crucial to nanosciences and nano-technology. This paper presents a novel nonconventional nano-conglutination technology combining polystyrenes spheres (PSs) self-assembly, conglutination and a lift-off process to fabricate the hollow nanospheres array with nanoholes. A self-assembly monolayer of PSs was stuck off from the quartz wafer by the thiol-ene adhesive material, and then the PSs was removed via a lift-off process and the hollow nanospheres embedded into the thiol-ene substrate was obtained. Thiolene polymer is a UV-curable material via "click chemistry" reaction at ambient conditions without the oxygen inhibition, which has excellent chemical and physical properties to be attractive as the adhesive material in nano-conglutination technology. Using the technique, a hollow nanospheres array with the nanoholes at the diameter of 200 nm embedded into the rigid thiol-ene substrate was fabricated, which has great potential to serve as a reaction container, catalyst and surface enhanced Raman scattering substrate.

Final report. CIRP seminar on micro and nano technology. November 2003

DEFF Research Database (Denmark)

Hansen, Hans Nørgaard; Alting, Leo

This final reports contains a description of the 1st international CIRP seminar on micro and nano technology held at DTU in November 2003.......This final reports contains a description of the 1st international CIRP seminar on micro and nano technology held at DTU in November 2003....

Nano Entry System for CubeSat-Class Payloads Project (Nano-ADEPT)

Science.gov (United States)

Smith, Brandon Patrick

2014-01-01

This project is developing a mechanically deployed system through a mission application study, deployment/ejection testing, and wind tunnel testing. Adaptable Deployable Entry and Placement Technology (ADEPT) has been under development at NASA since 2011. Nano-ADEPT is the application of this revolutionary entry technology for small spacecraft. The unique capability of ADEPT for small science payloads comes from its ability to stow within a slender volume and deploy passively to achieve a mass-efficient drag surface with a high heat rate capability. Near-term applications for this technology include return of small science payloads or CubeSat technology from Low Earth Orbit (LEO) and delivery of secondary payloads to the surface of Mars.

Synthesis and applications of nano-structured iron oxides/hydroxides

African Journals Online (AJOL)

... in numerous synthesis processes. This review outlines the work being carried out on synthesis of iron oxides in nano form and their various applications. Keywords: nano iron oxides, synthesis, catalysts, magnetic properties, biomedical application. International Journal of Engineering, Science and Technology, Vol. 2, No.

Proceedings of the workshop on new material development. Nano-technology and hydrogen energy society

International Nuclear Information System (INIS)

Yoshida, Masaru; Asano, Masaharu; Ohshima, Takeshi; Sugimoto, Masaki; Ohgaki, Junpei

2005-03-01

We have newly held the Workshop on New Material Development in order to enhance the research activities on new material development using radiation. Theme of this workshop was 'nano-technology and hydrogen', both of which are considered to have great influence on our social life and have shown rapid progress in the related researches, recently. Researchers from domestic universities, research institutes, and private companies have attended at the workshop and had the opportunity to exchange information and make discussions about the latest trend in the leading edge researches, and have contributed to the material development in future. The technology for manufacturing and evaluation of very fine materials, which is essential for the nano-technology, and the development of new functional materials, which will support the hydrogen energy society in future, have increasingly become important and have been intensively investigated by many research groups. In such investigation, the ionizing radiation is indispensable as the tool for probing and modifying materials. For this reason, this workshop was held at JAERI, Takasaki, a center of excellence for radiation application in Japan. This workshop was held by JAERI, Takasaki, on November 19, 2004 under the joint auspices of the Atomic Energy Society of Japan, the Chemical Society of Japan, the Polymer Science Society of Japan and the Japanese Society of Radiation Chemistry. The workshop was attended by 97 participates. We believe that this workshop supported by many academic societies will largely contribute to the research on new material development in the field of nano-technology and hydrogen. The 10 of the presented papers are indexed individually. (J.P.N.)

Nanoscience in the InSTEC and its relationship with nuclear science and technologies

International Nuclear Information System (INIS)

Codorniu Pujals, Daniel; Aguilera Corrales, Yuri

2015-01-01

This paper deals with the application of different experimental and theoretical tools to study nanomaterials as well as research aimed at combining the use of nano- and nuclear technologies carried out at the Higher Institute of Technologies and Applied Sciences. The wide participation of students in the research is highlighted, thus contributing to the assimilation of concepts and methods of nanosciences by the graduates of nuclear careers. (author)

The role of nano-particles in the field of thermal spray coating technology

Science.gov (United States)

Siegmann, Stephan; Leparoux, Marc; Rohr, Lukas

2005-06-01

Nano-particles play not only a key role in recent research fields, but also in the public discussions about health and safety in nanotechnology. Nevertheless, the worldwide activities in nano-particles research increased dramatically during the last 5 to 10 years. There are different potential routes for the future production of nano-particles at large scale. The main directions envisaged are mechanical milling, wet chemical reactions or gas phase processes. Each of the processes has its specific advantages and limitations. Mechanical milling and wet chemical reactions are typically time intensive and batch processes, whereas gas phase productions by flames or plasma can be carried out continuously. Materials of interest are mainly oxide ceramics, carbides, nitrides, and pure metals. Nano-ceramics are interesting candidates for coating technologies due to expected higher coating toughness, better thermal shock and wear resistance. Especially embedded nano-carbides and-nitrides offer homogenously distributed hard phases, which enhance coatings hardness. Thermal spraying, a nearly 100 years old and world wide established coating technology, gets new possibilities thanks to optimized, nano-sized and/or nano-structured powders. Latest coating system developments like high velocity flame spraying (HVOF), cold gas deposition or liquid suspension spraying in combination with new powder qualities may open new applications and markets. This article gives an overview on the latest activities in nano-particle research and production in special relation to thermal spray coating technology.

The world of Nano

International Nuclear Information System (INIS)

Noh, Seung Jeong; Hyun, Jun Won; An, Yong Hyeon; Lee, Sung Uk; Jee, Hye Gu; Kim, Young Seon

2006-07-01

The contents of this book are the beginning of nano technology, definition of nano, commercialization of nano technology, prospect of nano technology, survive with nano t-, development strategy of n-t in the U.S, and Japan, Korea, and other countries, comparison of development strategy of n-t among each country, various measurement technology for practical n-t, scanning tunneling microscopy, nano device, carbon nano tube, nano belt and nano wire, application of sensor in daily life, energy, post-Genome period and using as medicine with nano bio technology.

Accelerating nano-technological innovation in the Danish construction industry

DEFF Research Database (Denmark)

Koch, Christian; Stissing Jensen, Jens

2007-01-01

. The institutional features of the system are furthermore poorly equipped at identifying potentials within high-tech areas. In order to exploit the potentials of nano-technology it is thus argued that an alternative TIS needs to be established. Initiatives should identify and support "incubation rooms" or marked......  By viewing the construction industry as a technological innovation system (TIS) this paper discusses possible initiatives to accelerate nanotechnological innovations. The point of departure is a recent report on the application of nano-technology in the Danish construction industry, which...... concludes that opportunities are generally poorly appreciated by the industry and research communities alike. It is found that the construction industry is characterised by low-tech trajectories where dedicated innovation networks are often too fragile for innovations to stabilize and diffuse...

Self-Assembly, Pattern Formation and Growth Phenomena in Nano-Systems

CERN Document Server

Nepomnyashchy, Alexander A

2006-01-01

Nano-science and nano-technology are rapidly developing scientific and technological areas that deal with physical, chemical and biological processes that occur on nano-meter scale – one millionth of a millimeter. Self-organization and pattern formation play crucial role on nano-scales and promise new, effective routes to control various nano-scales processes. This book contains lecture notes written by the lecturers of the NATO Advanced Study Institute "Self-Assembly, Pattern Formation and Growth Phenomena in Nano-Systems" that took place in St Etienne de Tinee, France, in the fall 2004. They give examples of self-organization phenomena on micro- and nano-scale as well as examples of the interplay between phenomena on nano- and macro-scales leading to complex behavior in various physical, chemical and biological systems. They discuss such fascinating nano-scale self-organization phenomena as self-assembly of quantum dots in thin solid films, pattern formation in liquid crystals caused by light, self-organi...

Reverse micelle-loaded lipid nano-emulsions: new technology for nano-encapsulation of hydrophilic materials.

Science.gov (United States)

Anton, Nicolas; Mojzisova, Halina; Porcher, Emilien; Benoit, Jean-Pierre; Saulnier, Patrick

2010-10-15

This study presents novel, recently patented technology for encapsulating hydrophilic species in lipid nano-emulsions. The method is based on the phase-inversion temperature method (the so-called PIT method), which follows a low-energy and solvent-free process. The nano-emulsions formed are stable for months, and exhibit droplet sizes ranging from 10 to 200 nm. Hydrophilic model molecules of fluorescein sodium salt are encapsulated in the oily core of these nano-emulsion droplets through their solubilisation in the reverse micellar system. As a result, original, multi-scaled nano-objects are generated with a 'hydrophilic molecule in a reverse-micelles-in-oil-in-water' structure. Once fluorescein has been encapsulated it remains stable, for thermodynamic reasons, and the encapsulation yields can reach 90%. The reason why such complex objects can be formed is due to the soft method used (PIT method) which allows the conservation of the structure of the reverse micelles throughout the formulation process, up to their entrapment in the nano-emulsion droplets. In this study, we focus the investigation on the process itself, revealing its potential and limits. Since the formulation of nanocarriers for the encapsulation of hydrophilic substances still remains a challenge, this study may constitute a significant advance in this field. Copyright 2010 Elsevier B.V. All rights reserved.

Life Cycle Analysis of Dedicated Nano-Launch Technologies

Science.gov (United States)

Zapata, Edgar; McCleskey, Carey (Editor); Martin, John; Lepsch, Roger; Ternani, Tosoc

2014-01-01

Recent technology advancements have enabled the development of small cheap satellites that can perform useful functions in the space environment. Currently, the only low cost option for getting these payloads into orbit is through ride share programs - small satellites awaiting the launch of a larger satellite, and then riding along on the same launcher. As a result, these small satellite customers await primary payload launches and a backlog exists. An alternative option would be dedicated nano-launch systems built and operated to provide more flexible launch services, higher availability, and affordable prices. The potential customer base that would drive requirements or support a business case includes commercial, academia, civil government and defense. Further, NASA technology investments could enable these alternative game changing options. With this context, in 2013 the Game Changing Development (GCD) program funded a NASA team to investigate the feasibility of dedicated nano-satellite launch systems with a recurring cost of less than $2 million per launch for a 5 kg payload to low Earth orbit. The team products would include potential concepts, technologies and factors for enabling the ambitious cost goal, exploring the nature of the goal itself, and informing the GCD program technology investment decision making process. This paper provides an overview of the life cycle analysis effort that was conducted in 2013 by an inter-center NASA team. This effort included the development of reference nano-launch system concepts, developing analysis processes and models, establishing a basis for cost estimates (development, manufacturing and launch) suitable to the scale of the systems, and especially, understanding the relationship of potential game changing technologies to life cycle costs, as well as other factors, such as flights per year.

Progress in Nano-Electro-Optics III Industrial Applications and Dynamics of the Nano-Optical System

CERN Document Server

Ohtsu, Motoichi

2005-01-01

This unique monograph series "Progress in Nano-Electro Optics" reviews the results of advanced studies of electro-optics on the nanometric scale. This third volume covers the most recent topics of theoretical and experimental interest including classical and quantum optics, organic and inorganic material science and technology, surface science, spectroscopy, atom manipulation, photonics, and electronics. Each chapter is written by one or more leading scientists from the relevant field. Thus, high-quality scientific and technical information is provided to scientists, engineers, and students engaged in nano-electro optics and nanophotonics research. The first two volumes addressed the "Basics and Theory of Near Field Optics" (2002) and "Novel Devices and Atom Manipulation" (2003).

NANO-2013: Knowledge Society: mutual influence and interference of science and society. Program and Abstract Book

International Nuclear Information System (INIS)

2013-01-01

The NANO-2013 Symposium is the 5th edition of the series of the Humboldt-Kollegs with logo 'NANO'. It brought together world known experts in the Nano-science area from 15 countries. The book includes abstracts of the papers presented at Symposium.

Bridging the Gap Between Innovation and ELSA: The TA Program in the Dutch Nano-R&D Program NanoNed

NARCIS (Netherlands)

Rip, Arie; van Lente, H

2013-01-01

The Technology Assessment (TA) Program established in 2003 as part of the Dutch R&D consortium NanoNed is interesting for what it did, but also as an indication that there are changes in how new science and technology are pursued: the nanotechnologists felt it necessary to spend part of their

Multifunctional magnetic nano/microparticles for bioapplications

Czech Academy of Sciences Publication Activity Database

Horák, Daniel; Babič, Michal; Jendelová, Pavla; Herynek, V.

2010-01-01

Roč. 26, č. 2 (2010), s. 38 ISSN 0233-7657. [Bridges in Life Sciences, Annual Scientific Meeting Regional Cooperation for Health, Science and Technology /5./. 09.04.2010-11.04.2010, Lviv] R&D Projects: GA MŠk 2B06053 Institutional research plan: CEZ:AV0Z40500505 Keywords : magnetic * nano particle * microsphere Subject RIV: EE - Microbiology, Virology

The single-event effect evaluation technology for nano integrated circuits

International Nuclear Information System (INIS)

Zheng Hongchao; Zhao Yuanfu; Yue Suge; Fan Long; Du Shougang; Chen Maoxin; Yu Chunqing

2015-01-01

Single-event effects of nano scale integrated circuits are investigated. Evaluation methods for single-event transients, single-event upsets, and single-event functional interrupts in nano circuits are summarized and classified in detail. The difficulties in SEE testing are discussed as well as the development direction of test technology, with emphasis placed on the experimental evaluation of a nano circuit under heavy ion, proton, and laser irradiation. The conclusions in this paper are based on many years of testing at accelerator facilities and our present understanding of the mechanisms for SEEs, which have been well verified experimentally. (paper)

Nano-Launcher Technologies, Approaches, and Life Cycle Assessment. Phase II

Science.gov (United States)

Zapata, Edgar

2014-01-01

Assist in understanding NASA technology and investment approaches, and other driving factors, necessary for enabling dedicated nano-launchers by industry at a cost and flight rate that (1) could support and be supported by an emerging nano-satellite market and (2) would benefit NASAs needs. Develop life-cycle cost, performance and other NASA analysis tools or models required to understand issues, drivers and challenges.

Polychromatic X-ray Micro- and Nano-Beam Science and Instrumentation

Science.gov (United States)

Ice, G. E.; Larson, B. C.; Liu, W.; Barabash, R. I.; Specht, E. D.; Pang, J. W. L.; Budai, J. D.; Tischler, J. Z.; Khounsary, A.; Liu, C.; Macrander, A. T.; Assoufid, L.

2007-01-01

Polychromatic x-ray micro- and nano-beam diffraction is an emerging nondestructive tool for the study of local crystalline structure and defect distributions. Both long-standing fundamental materials science issues, and technologically important questions about specific materials systems can be uniquely addressed. Spatial resolution is determined by the beam size at the sample and by a knife-edge technique called differential aperture microscopy that decodes the origin of scattering from along the penetrating x-ray beam. First-generation instrumentation on station 34-ID-E at the Advanced Photon Source (APS) allows for nondestructive automated recovery of the three-dimensional (3D) local crystal phase and orientation. Also recovered are the local elastic-strain and the dislocation tensor distributions. New instrumentation now under development will further extend the applications of polychromatic microdiffraction and will revolutionize materials characterization.

Polychromatic X-ray Micro- and Nano-Beam Science and Instrumentation

International Nuclear Information System (INIS)

Ice, G.E.; Larson, Ben C.; Liu, Wenjun; Barabash, Rozaliya; Specht, Eliot D; Pang, Judy; Budai, John D.; Tischler, Jonathan Zachary; Khounsary, Ali; Liu, Chian; Macrander, Albert T.; Assoufid, Lahsen

2007-01-01

Polychromatic x-ray micro- and nano-beam diffraction is an emerging nondestructive tool for the study of local crystalline structure and defect distributions. Both long-standing fundamental materials science issues, and technologically important questions about specific materials systems can be uniquely addressed. Spatial resolution is determined by the beam size at the sample and by a knife-edge technique called differential aperture microscopy that decodes the origin of scattering from along the penetrating x-ray beam. First-generation instrumentation on station 34-ID-E at the Advanced Photon Source (APS) allows for nondestructive automated recovery of the three-dimensional (3D) local crystal phase and orientation. Also recovered are the local elastic-strain and the dislocation tensor distributions. New instrumentation now under development will further extend the applications of polychromatic microdiffraction and will revolutionize materials characterization

Science-Technology-Society or Technology-Society-Science? Insights from an Ancient Technology

Science.gov (United States)

Lee, Yeung Chung

2010-01-01

Current approaches to science-technology-society (STS) education focus primarily on the controversial socio-scientific issues that arise from the application of science in modern technology. This paper argues for an interdisciplinary approach to STS education that embraces science, technology, history, and social and cultural studies. By employing…

Nano-enabled environmental products and technologies - opportunities and drawbacks

DEFF Research Database (Denmark)

Møller Christensen, Frans; Brinch, Anna; Kjølholt, Jesper

The project aims to investigate the benefits for health and environment that the use of nanomaterials in products and technologies may have. More specifically, the project provides an overview of the most relevant nano-enabled environmental technologies, different types of products and technologies...... on the (Danish) market, as well as products and technologies, which are still in R&D and it will provide a qualitative overview of health and environmental pros and cons of these technologies. The project has focused on technologies applied in: 1) purification of water and wastewater, 2) remediation of soil...

Micro and Nano-Scale Technologies for Cell Mechanics

Directory of Open Access Journals (Sweden)

Mustafa Unal

2014-10-01

Full Text Available Cell mechanics is a multidisciplinary field that bridges cell biology, fundamental mechanics, and micro and nanotechnology, which synergize to help us better understand the intricacies and the complex nature of cells in their native environment. With recent advances in nanotechnology, microfabrication methods and micro-electro-mechanical-systems (MEMS, we are now well situated to tap into the complex micro world of cells. The field that brings biology and MEMS together is known as Biological MEMS (BioMEMS. BioMEMS take advantage of systematic design and fabrication methods to create platforms that allow us to study cells like never before. These new technologies have been rapidly advancing the study of cell mechanics. This review article provides a succinct overview of cell mechanics and comprehensively surveys micro and nano-scale technologies that have been specifically developed for and are relevant to the mechanics of cells. Here we focus on micro and nano-scale technologies, and their applications in biology and medicine, including imaging, single cell analysis, cancer cell mechanics, organ-on-a-chip systems, pathogen detection, implantable devices, neuroscience and neurophysiology. We also provide a perspective on the future directions and challenges of technologies that relate to the mechanics of cells.

76 FR 2889 - Notice of Intent To Grant Exclusive and Co-Exclusive Patent License; NanoDynamics Life Sciences...

Science.gov (United States)

2011-01-18

... Patent License; NanoDynamics Life Sciences, Inc. AGENCY: Department of the Navy, DOD. ACTION: Notice. SUMMARY: The Department of the Navy hereby gives notice of its intent to grant to NanoDynamics Life Sciences, Inc. a revocable, nonassignable, exclusive license to practice the Government-owned inventions...

WikiScience: Wikipedia for science and technology

OpenAIRE

Aibar Puentes, Eduard

2015-01-01

Peer-reviewed Presentació de la conferència "WikiScience: Wikipedia for science and technology". Presentación de la conferencia "WikiScience: Wikipedia for science and technology". Presentation of the conference "Science Wiki: Wikipedia for science and technology".

NanoString, a novel digital color-coded barcode technology: current and future applications in molecular diagnostics.

Science.gov (United States)

Tsang, Hin-Fung; Xue, Vivian Weiwen; Koh, Su-Pin; Chiu, Ya-Ming; Ng, Lawrence Po-Wah; Wong, Sze-Chuen Cesar

2017-01-01

Formalin-fixed, paraffin-embedded (FFPE) tissue sample is a gold mine of resources for molecular diagnosis and retrospective clinical studies. Although molecular technologies have expanded the range of mutations identified in FFPE samples, the applications of existing technologies are limited by the low nucleic acids yield and poor extraction quality. As a result, the routine clinical applications of molecular diagnosis using FFPE samples has been associated with many practical challenges. NanoString technologies utilize a novel digital color-coded barcode technology based on direct multiplexed measurement of gene expression and offer high levels of precision and sensitivity. Each color-coded barcode is attached to a single target-specific probe corresponding to a single gene which can be individually counted without amplification. Therefore, NanoString is especially useful for measuring gene expression in degraded clinical specimens. Areas covered: This article describes the applications of NanoString technologies in molecular diagnostics and challenges associated with its applications and the future development. Expert commentary: Although NanoString technology is still in the early stages of clinical use, it is expected that NanoString-based cancer expression panels would play more important roles in the future in classifying cancer patients and in predicting the response to therapy for better personal therapeutic care.

Nano-optomechanics with optically levitated nanoparticles

Science.gov (United States)

Neukirch, Levi P.; Vamivakas, A. Nick

2015-01-01

Nano-optomechanics is a vibrant area of research that continues to push the boundary of quantum science and measurement technology. Recently, it has been realised that the optical forces experienced by polarisable nanoparticles can provide a novel platform for nano-optomechanics with untethered mechanical oscillators. Remarkably, these oscillators are expected to exhibit quality factors approaching ?. The pronounced quality factors are a direct result of the mechanical oscillator being freed from a supporting substrate. This review provides an overview of the basic optical physics underpinning optical trapping and optical levitation experiments, it discusses a number of experimental approaches to optical trapping and finally outlines possible applications of this nano-optomechanics modality in hybrid quantum systems and nanoscale optical metrology.

NanoCrySP technology for generation of drug nanocrystals: translational aspects and business potential.

Science.gov (United States)

Shete, Ganesh; Bansal, Arvind Kumar

2016-08-01

Drug nanocrystals have rapidly evolved into a mature drug delivery strategy in the last decade, with almost 16 products currently on the market. Several "top-down" technologies are available in the market for generation of nanocrystals. Despite several advantages, very few bottom-up technologies have been explored for commercial purpose. This short communication highlights a novel, bottom-up, spray drying based technology-NanoCrySP-to generate drug nanocrystals. Nanocrystals are generated in the presence of non-polymeric excipients that act as crystallization inducer for the drug. Excipients encourage crystallization of drug by plasticization, primary heterogeneous nucleation, and imparting physical barrier to crystal growth. Nanocrystals have shown significant improvement in dissolution and thereby oral bioavailability. NanoCrySP technology is protected through patents in India, the USA, and the European Union. NanoCrySP can be utilized for (i) pharmaceutical development of new chemical entities, (ii) differentiated products of existing molecules, and (iii) generic drug products. The aggregation of drug nanocrystals generated using NanoCrySP poses significant challenges in the nanocrystal-based product development. Addition of stabilizers either during spray drying or during dissolution has shown beneficial effects.

New York Nano-Bio Molecular Information Technology (NYNBIT) Incubator

Energy Technology Data Exchange (ETDEWEB)

Das, Digendra K

2008-12-19

This project presents the outcome of an effort made by a consortium of six universities in the State of New York to develop a Center for Advanced technology (CAT) in the emerging field of Nano-Bio-Molecular Information Technology. The effort consists of activities such as organization of the NYNBIT incubator, collaborative research projects, development of courses, an educational program for high schools, and commercial start-up programs.

Optical nano and micro actuator technology

CERN Document Server

Knopf, George K

2012-01-01

In Optical Nano and Micro Actuator Technology, leading engineers, material scientists, chemists, physicists, laser scientists, and manufacturing specialists offer an in-depth, wide-ranging look at the fundamental and unique characteristics of light-driven optical actuators. They discuss how light can initiate physical movement and control a variety of mechanisms that perform mechanical work at the micro- and nanoscale. The book begins with the scientific background necessary for understanding light-driven systems, discussing the nature of light and the interaction between light and NEMS/MEMS d

Nano-sized crystalline drug production by milling technology.

Science.gov (United States)

Moribe, Kunikazu; Ueda, Keisuke; Limwikrant, Waree; Higashi, Kenjirou; Yamamoto, Keiji

2013-01-01

Nano-formulation of poorly water-soluble drugs has been developed to enhance drug dissolution. In this review, we introduce nano-milling technology described in recently published papers. Factors affecting the size of drug crystals are compared based on the preparation methods and drug and excipient types. A top-down approach using the comminution process is a method conventionally used to prepare crystalline drug nanoparticles. Wet milling using media is well studied and several wet-milled drug formulations are now on the market. Several trials on drug nanosuspension preparation using different apparatuses, materials, and conditions have been reported. Wet milling using a high-pressure homogenizer is another alternative to preparing production-scale drug nanosuspensions. Dry milling is a simple method of preparing a solid-state drug nano-formulation. The effect of size on the dissolution of a drug from nanoparticles is an area of fundamental research, but it is sometimes incorrectly evaluated. Here, we discuss evaluation procedures and the associated problems. Lastly, the importance of quality control, process optimization, and physicochemical characterization are briefly discussed.

Nano materials for the Local and Targeted Delivery of Osteoarthritis Drugs

International Nuclear Information System (INIS)

Periyasamy, P.C.; Leijten, J.C.H.; Dijkstra, P.J.; Karperien, M.; Post, J.N.

2012-01-01

Nano technology has found its potential in every possible field of science and engineering. It offers a plethora of options to design tools at the nanometer scale, which can be expected to function more effectively than micro- and macro systems for specific applications. Although the debate regarding the safety of synthetic nano materials for clinical applications endures, it is a promising technology due to its potential to augment current treatments. Various materials such as synthetic polymer, biopolymers, or naturally occurring materials such as proteins and peptides can serve as building blocks for adaptive nano scale formulations. The choice of materials depends highly on the application. We focus on the use of nanoparticles for the treatment of degenerative cartilage diseases, such as osteoarthritis (OA). Current therapies for OA focus on treating the symptoms rather than modifying the disease. The usefulness of OA disease modifying drugs is hampered by side effects and lack of suitable drug delivery systems that target, deliver, and retain drugs locally. This challenge can be overcome by using nano technological formulations. We describe the different nano drug delivery systems and their potential for cartilage repair. This paper provides the reader basal understanding of nano materials and aims at drawing new perspectives on the use of existing nano technological formulations for the treatment of osteoarthritis.

Brief overview of BioMicroNano Technologies.

Energy Technology Data Exchange (ETDEWEB)

Gourley, Paul Lee

2005-01-01

This paper provides a brief overview of the fields of biological micro-electromechanical systems (bioMEMs) and associated nanobiotechnologies, collectively denoted as BioMicroNano. Although they are developing at a very rapid pace and still redefining themselves, several stabilized areas of research and development can be identified. Six major areas are delineated, and specific examples are discussed and illustrated. Various applications of the technologies are noted, and potential market sizes are compared.

Studies of cell biomechanics with surface micro-/nano-technology

International Nuclear Information System (INIS)

Wang Dong; Zhang Wei; Jiang Xingyu

2011-01-01

We report the recent progress in our studies of cell biology using micro-/nano-technology. Cells have a size of several to tens of microns, which makes them easily manipulated by micro-/nano-technology. The shape of the cell influences the alignment of the actin cytoskeleton, which bears the main forces of the cell, maintains the shape,and mediates a series of biochemical reactions. We invented a stretching device and studied the real-time actin filament dynamics under stretch. We found that one stretch cycle shortened the actin filaments and promoted their reassemble process. Cell migration is a complex mechanical process. We found that cell geometry determines the cell polarity and migration direction. We fabricated three-dimensional surfaces to mimic the topography in vivo, and further built a cell culture model by integrating the three-dimensional surface, microfluidics, cell patterning,and coculturing of multiple cell types. We also investigated the neuronal guidance by surface patterning. (authors)

History of science and technology

Energy Technology Data Exchange (ETDEWEB)

Jang, Byeong Ju

1986-04-15

This book shows origin of technology and development of civilization, origin of science and dissemination of ironware, accumulation of science and technology in the Middle Age society, the era of the Renaissance and science, factory-made manual industry and mechanistic nature view, the era of scientific enlightenment, industrial revolution, science and technology of Korea, formation of modern science and technology, modern technology and approach to science and technology, science and technology in the twenty century such as biochemistry and physics, and cooperation of science and technology.

History of science and technology

International Nuclear Information System (INIS)

Jang, Byeong Ju

1986-04-01

This book shows origin of technology and development of civilization, origin of science and dissemination of ironware, accumulation of science and technology in the Middle Age society, the era of the Renaissance and science, factory-made manual industry and mechanistic nature view, the era of scientific enlightenment, industrial revolution, science and technology of Korea, formation of modern science and technology, modern technology and approach to science and technology, science and technology in the twenty century such as biochemistry and physics, and cooperation of science and technology.

The Wright Science Colloquia - Entering the Nano-World

CERN Multimedia

2002-01-01

In 1965, Intel co-founder Gordon Moore made an astonishing prediction - that every year processing power would double. Although it was corrected to a period of 18 to 24 months in 1975, this prediction has always proved accurate. Accordingly, the first Intel processor produced in 1975 was equipped with 2,300 transistors whereas the latest edition has 55 million. That means 55 million etched components crammed into an area of about a square centimetre! Today we have this extraordinary process of miniaturisation to thank for cell phones, computers and other, ever more compact electronic marvels. But where will the miniaturisation race end? What will happen when electronic etchings reach the nano-scale (a millionth of a millimetre), approaching the size of an atom? How can we even start to comprehend this nano-world, whose laws are so different from our own, human-sized world? These fascinating questions are on the programme of the 10th Wright Science Colloquia from 18 to 22 November. Five world-renowned specia...

Progress in Nano-Electro-Optics VII Chemical, Biological, and Nanophotonic Technologies for Nano-Optical Devices and Systems

CERN Document Server

Ohtsu, Motoichi

2010-01-01

This book focuses on chemical and nanophotonic technology to be used to develop novel nano-optical devices and systems. It begins with temperature- and photo-induced phase transition of ferromagnetic materials. Further topics include: energy transfer in artificial photosynthesis, homoepitaxial multiple quantum wells in ZnO, near-field photochemical etching and nanophotonic devices based on a nonadiabatic process and optical near-field energy transfer, respectively and polarization control in the optical near-field for optical information security. Taken as a whole, this overview will be a valuable resource for engineers and scientists working in the field of nano-electro-optics.

4. International conference on materials science and condensed matter physics. Abstracts

International Nuclear Information System (INIS)

2008-09-01

This book includes more than 200 abstracts on various aspects of: materials processing and characterization, crystal growth methods, solid-state and crystal technology, development of condensed matter theory and modeling of materials properties, solid-state device physics, nano science and nano technology, heterostructures, superlattices, quantum wells and wires, advanced quantum physics for nano systems

Nano-tubular cellulose for bioprocess technology development.

Science.gov (United States)

Koutinas, Athanasios A; Sypsas, Vasilios; Kandylis, Panagiotis; Michelis, Andreas; Bekatorou, Argyro; Kourkoutas, Yiannis; Kordulis, Christos; Lycourghiotis, Alexis; Banat, Ibrahim M; Nigam, Poonam; Marchant, Roger; Giannouli, Myrsini; Yianoulis, Panagiotis

2012-01-01

Delignified cellulosic material has shown a significant promotional effect on the alcoholic fermentation as yeast immobilization support. However, its potential for further biotechnological development is unexploited. This study reports the characterization of this tubular/porous cellulosic material, which was done by SEM, porosimetry and X-ray powder diffractometry. The results showed that the structure of nano-tubular cellulose (NC) justifies its suitability for use in "cold pasteurization" processes and its promoting activity in bioprocessing (fermentation). The last was explained by a glucose pump theory. Also, it was demonstrated that crystallization of viscous invert sugar solutions during freeze drying could not be otherwise achieved unless NC was present. This effect as well as the feasibility of extremely low temperature fermentation are due to reduction of the activation energy, and have facilitated the development of technologies such as wine fermentations at home scale (in a domestic refrigerator). Moreover, NC may lead to new perspectives in research such as the development of new composites, templates for cylindrical nano-particles, etc.

Pulse electrochemical meso/micro/nano ultraprecision machining technology.

Science.gov (United States)

Lee, Jeong Min; Kim, Young Bin; Park, Jeong Woo

2013-11-01

This study demonstrated meso/micro/nano-ultraprecision machining through electrochemical reactions using intermittent DC pulses. The experiment focused on two machining methods: (1) pulse electrochemical polishing (PECP) of stainless steel, and (2) pulse electrochemical nano-patterning (PECNP) on a silicon (Si) surface, using atomic force microscopy (AFM) for fabrication. The dissolution reaction at the stainless steel surface following PECP produced a very clean, smooth workpiece. The advantages of the PECP process included improvements in corrosion resistance, deburring of the sample surface, and removal of hydrogen from the stainless steel surface as verified by time-of-flight secondary-ion mass spectrometry (TOF-SIMS). In PECNP, the electrochemical reaction generated within water molecules produced nanoscale oxide textures on a Si surface. Scanning probe microscopy (SPM) was used to evaluate nanoscale-pattern processing on a Si wafer surface produced by AFM-PECNP For both processes using pulse electrochemical reactions, three-dimensional (3-D) measurements and AFM were used to investigate the changes on the machined surfaces. Preliminary results indicated the potential for advancing surface polishing techniques and localized micro/nano-texturing technology using PECP and PECNP processes.

Application of emission CT on nano-robot radiation imaging tracing and isotope sign in nano-robot

International Nuclear Information System (INIS)

Wang Xuewu; Cheng Jianping; Kang Kejun

2000-01-01

Nano-technology has been a scientific and technical frontier with major trends foreseen in several disciplines. Nano-robot is the most remarkable imagination of the application of nano-technology. And it should be concerned of tracing technology along with nano-robot. The character of nano-robot is deeply analyzed, the development status of emission CT is integrated, and the application of emission CT on nano-robot radiation imaging tracing is discussed. The isotope sign of nano-robot is especially calculated and analyzed

Development of neutron science and technology

International Nuclear Information System (INIS)

Lee, Ki Hong; Seong, Baik Seok; Lee, Jeong Soo

2012-04-01

Using various neutron scattering, imaging, and activation analysis instruments and irradiation facility and capsules, the short-term industrial application and mid and long-term basic science with neutrons was carried out. In this regard, we proposed the utilization of the neutron scattering and diffraction techniques to the study of physical, mechanical material properties in industrial components. The nano magnetic thin film structure study using neutron reflectometry, spin structure and dynamics study using neutron scattering, hydrogen combination structure study using single crystal diffraction were carried out. The triple-axis spectrometer has been installed. Also, a new growth facility of single crystal has been developed to supply crystals for the neutron scattering experiment. We have contributed to the performance enhancement of hydrogen fuel cell by the development of quantitative neutron radiography technology and developed the differential phase imaging technology using silicon grating. To perform precise neutron activation analysis, a Compton suppressed gamma-ray spectroscopy system was installed. Through the analysis of actual samples as well as geological and biological reference materials, performance test was carried out. We built up analytical data base and develope integrated analytical program for INAA/PGAA. The analysis and evaluation technology of the irradiation capsule test in HANARO for the commercial and future nuclear reactor systems was improved

Ames Infusion Stories for NASA Annual Technology Report: Nano Entry System for CubeSat-Class Payloads

Science.gov (United States)

Smith, Brandon; Jan, Darrell Leslie; Venkatapathy, Etiraj

2015-01-01

The Nano Entry System for CubeSat-Class Payloads led to the development of the Nano-Adaptable Deployable Entry and Placement Technology ("Nano-ADEPT"). Nano-ADEPT is a mechanically deployed entry, descent, and landing (EDL) system that stows during launch and cruise (like an umbrella) and serves as both heat shield and primary structure during EDL. It is especially designed for small spacecraft where volume is a limiting constraint.

Science and Technology Teachers' Views of Primary School Science and Technology Curriculum

Science.gov (United States)

Yildiz-Duban, Nil

2013-01-01

This phenomenographic study attempts to explicit science and technology teachers' views of primary school science and technology curriculum. Participants of the study were selected through opportunistic sampling and consisted of 30 science and technology teachers teaching in primary schools in Afyonkarahisar, Turkey. Data were collected through an…

Nano-technology on the road of the success; Les nanotechnologies sur la route du succes

Energy Technology Data Exchange (ETDEWEB)

Pessey, V. [Alcimed, 75 - Paris (France)

2005-05-01

After some difficult beginnings in the years 1980, nano-technology is ready to invade the automobile sector. In composites, tires, coatings, fuels..., nano-particles bring unmatched properties. An only restriction to their development: a price too high. (O.M.)

Nano-slit electrospray emitters fabricated by a micro- to nanofluidic via technology

NARCIS (Netherlands)

Dijkstra, Marcel; Berenschot, Johan W.; de Boer, Meint J.; van der Linden, H.J.; Hankemeier, T.; Lammerink, Theodorus S.J.; Wiegerink, Remco J.; Elwenspoek, Michael Curt; Tas, Niels Roelof

2012-01-01

This article presents nano-slit electrospray emitters fabricated by a micro- to nanofluidic via technology. The main advantage of the technology is the ability to position freely suspended nanochannels anywhere on a microfluidic chip, where leak-tight delivery of fluid from a fluid reservoir can be

Synthesis, Properties, and Applications of Low-Dimensional Carbon-Related Nano materials

International Nuclear Information System (INIS)

Mostofizadeh, A.; Li, Y.; Song, B.; Huang, Y.; Mostofizadeh, A.

2011-01-01

In recent years, many theoretical and experimental studies have been carried out to develop one of the most interesting aspects of the science and nano technology which is called carbon-related nano materials. The goal of this paper is to provide a review of some of the most exciting and important developments in the synthesis, properties, and applications of low-dimensional carbon nano materials. Carbon nano materials are formed in various structural features using several different processing methods. The synthesis techniques used to produce specific kinds of low-dimensional carbon nano materials such as zero-dimensional carbon nano materials (including fullerene, carbon-encapsulated metal nanoparticles, nano diamond, and onion-like carbons), one-dimensional carbon nano materials (including carbon nano fibers and carbon nano tubes), and two-dimensional carbon nano materials (including graphene and carbon nano walls) are discussed in this paper. Subsequently, the paper deals with an overview of the properties of the mainly important products as well as some important applications and the future outlooks of these advanced nano materials.

Multi Scale Micro and Nano Metrology for Advanced Precision Moulding Technologies

DEFF Research Database (Denmark)

Quagliotti, Danilo

dimensions of the novel micro and nano production. Nowadays, design methodologies and concurrent tolerance guidelines are not yet available for advanced micro manufacture. Moreover, there are no shared methodologies that deals with the uncertainty evaluation of feature of size in the sub-millimetre scale......The technological revolution that has deeply influenced the manufacturing industry over the past two decades opened up new possibilities for the realisation of advanced micro and nano systems but, at the same time, traditional techniques for quality assurance became not adequate any longer......, as the technology progressed. The gap between the needs of the manufacturing industry and the well-organized structure of the dimensional and geometrical metrology appeared, above all, related to the methodologies and, also, to the instrumentation used to deal with the incessant scaling down of the critical...

NANO supermarket : using speculative design to catalyze a technology debate

NARCIS (Netherlands)

Mensvoort, van K.M.; Vos, C.; Wouters, S.; Konrad, K.; Coenen, C.; Dijkstra, A.; Milburn, C.; Lente, van H.

2013-01-01

The NANO Supermarket is a mobile exhibition, which presents specula-tive, debate-provoking nanotechnology products that might arrive on the market within the next decades. The products function as scenarios for potential techno-logical futures that invite a broad audience to discuss the impact of

Modification of unsaturated polyester resins using nano-size core ...

African Journals Online (AJOL)

Modification of unsaturated polyester resins using nano-size core-shell particles. MO Munyati, PA Lovell. Abstract. No Abstract Available Journal of Science and Technology Special Edition 2004: 24-31. Full Text: EMAIL FULL TEXT EMAIL FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT.

Convergence Science in a Nano World

OpenAIRE

Cady, Nathaniel

2013-01-01

Convergence is a new paradigm that brings together critical advances in the life sciences, physical sciences and engineering. Going beyond traditional “interdisciplinary” studies, “convergence” describes the culmination of truly integrated research and development, yielding revolutionary advances in both scientific research and new technologies. At its core, nanotechnology embodies these elements of convergence science by bringing together multiple disciplines with the goal of creating innova...

Nano-tubular cellulose for bioprocess technology development.

Directory of Open Access Journals (Sweden)

Athanasios A Koutinas

Full Text Available Delignified cellulosic material has shown a significant promotional effect on the alcoholic fermentation as yeast immobilization support. However, its potential for further biotechnological development is unexploited. This study reports the characterization of this tubular/porous cellulosic material, which was done by SEM, porosimetry and X-ray powder diffractometry. The results showed that the structure of nano-tubular cellulose (NC justifies its suitability for use in "cold pasteurization" processes and its promoting activity in bioprocessing (fermentation. The last was explained by a glucose pump theory. Also, it was demonstrated that crystallization of viscous invert sugar solutions during freeze drying could not be otherwise achieved unless NC was present. This effect as well as the feasibility of extremely low temperature fermentation are due to reduction of the activation energy, and have facilitated the development of technologies such as wine fermentations at home scale (in a domestic refrigerator. Moreover, NC may lead to new perspectives in research such as the development of new composites, templates for cylindrical nano-particles, etc.

Nano Surface Engineering in the 21st Century

Institute of Scientific and Technical Information of China (English)

Xu Bin-shi; Wang Hai-dou; Dong Shi-yun; Shi Pei-jing; Xu Yi

2004-01-01

Nano surface engineering is the new development of surface engineering, and is the typical representation that the advanced nano technology improves the traditional surface engineering. The connotation of nano surface engineering is profound. The initial stage of nano surface engineering is realized at present day. The key technologies of nano surface engineering are the support to the equipment remanufacturing. Today the relatively mature key technologies are: nano thermal spraying technology, nano electric-brush plating technology, nano self-repairing anti-friction technology and metal surface nanocrystallization, etc. Many scientific issues have been continuously discovered. Meanwhile they have been applied in the practice more and more, and have archived the excellent remanufacturing effect.

An education model of a nano-positioning system for mechanical engineers

International Nuclear Information System (INIS)

Lee, Dong Yeon; Gweon, Dae Gab

2006-01-01

The increasing use of nano-positioners in a wide variety of laboratory and industrial applications has created a need for nano-mechatronics education in all engineering disciplines. The subject of nano-mechatronics is broad and interdisciplinary. This article focuses on the way nano-mechatronics is taught in department of mechanical engineering at Korea Advanced Institute of Science and Technology (KAIST). As one model of nano-positioning systems, design and experimental methodology is presented in this article. For design phase, the stiffness and resonant frequencies are found analytically and verified by using a commercial finite element analysis program. Next, for experimental phase, various tests are performed to access the performances of the designed nano-positioner, for example, sine-tracking, multi-step response and travel-range check etc. Finally, the definition of 'separation frequency' is described and some comments are discussed

Development highlights of micro-nano technologies in the MENA region and pathways for initiatives to support and network

NARCIS (Netherlands)

Al-Rawashdeh, M.I.M.; Alfeeli, B.; Rawashdeh, A.M.; Hessel, V.

2013-01-01

Current developments in the field of micro-nano technologies in the Middle East and North Africa (MENA) region are highlighted. Firstly, the scientific outcome of micro-nano technologies from the MENA region is analyzed. Egypt and Saudi Arabia are the leading countries, with >50% of the total MENA

Formation of DNA-network embedding ferromagnetic Cobalt nano-particles

Science.gov (United States)

Kanki, Teruo; Tanaka, Hidekazu; Shirakawa, Hideaki; Sacho, Yu; Taniguchi, Masateru; Lee, Hea-Yeon; Kawai, Tomoji; Kang, Nam-Jung; Chen, Jinwoo

2002-03-01

Formation of DNA-network embedding ferromagnetic Cobalt nano-particles T. Kanki, Hidekazu. Tanaka, H. Shirakawa, Y. Sacho, M. Taniguchi, H. Lee, T. Kawai The Institute of Scientific and Industrial Research, Osaka University, Japan and Nam-Jung Kang, Jinwoo Chen Korea Advanced Institute of Science and Technology (KAIST), Korea DNA can be regarded as a naturally occurring and highly specific functional biopolymer and as a fine nano-wire. Moreover, it was found that large-scale DNA networks can be fabricated on mica surfaces. By using this network structure, we can expect to construct nano-scale assembly of functional nano particle, for example ferromagnetic Co nano particles, toward nano scale spin-electronics based on DNA circuits. When we formed DNA network by 250mg/ml DNA solution of poly(dG)-poly(dC) including ferromagnetic Co nano particles (diameter of 12nm), we have conformed the DNA network structure embedding Co nano-particles (height of about 12nm) by atomic force microscopy. On the other hand, we used 100mg/ml DNA solution, DNA can not connect each other, and many Co nano-particles exist without being embedded.

Nano-bio-sensing

CERN Document Server

Carrara, Sandro

2011-01-01

This book examines state-of-the-art applications of nano-bio-sensing. It brings together researchers from nano-electronics and bio-technology, providing multidisciplinary content from nano-structures fabrication to bio-sensing applications.

Nano-technology and privacy: on continuous surveillance outside the panopticon.

Science.gov (United States)

Hoven, Jeroen Van Den; Vermaas, Pieter E

2007-01-01

We argue that nano-technology in the form of invisible tags, sensors, and Radio Frequency Identity Chips (RFIDs) will give rise to privacy issues that are in two ways different from the traditional privacy issues of the last decades. One, they will not exclusively revolve around the idea of centralization of surveillance and concentration of power, as the metaphor of the Panopticon suggests, but will be about constant observation at decentralized levels. Two, privacy concerns may not exclusively be about constraining information flows but also about designing of materials and nano-artifacts such as chips and tags. We begin by presenting a framework for structuring the current debates on privacy, and then present our arguments.

[Response surface method optimize of nano-silica solid dispersion technology assistant enzymatic hydrolysis preparation genistein].

Science.gov (United States)

Jin, Xin; Zhang, Zhen-Hai; Zhu, Jing; Sun, E; Yu, Dan-Hong; Chen, Xiao-Yun; Liu, Qi-Yuan; Ning, Qing; Jia, Xiao-Bin

2012-04-01

This article reports that nano-silica solid dispersion technology was used to raise genistein efficiency through increasing the enzymatic hydrolysis rate. Firstly, genistin-nano-silica solid dispersion was prepared by solvent method. And differential scanning calorimetry (DSC) and transmission electron microscopy (TEM) were used to verify the formation of solid dispersion, then enzymatic hydrolysis of solid dispersion was done by snailase to get genistein. With the conversion of genistein as criteria, single factor experiments were used to study the different factors affecting enzymatic hydrolysis of genistin and its solid dispersion. And then, response surface method was used to optimize of nano-silica solid dispersion technology assistant enzymatic hydrolysis. The optimum condition to get genistein through enzymatic hydrolysis of genistin-nano-silica solid dispersion was pH 7.1, temperature 52.2 degrees C, enzyme concentration 5.0 mg x mL(-1) and reaction time 7 h. Under this condition, the conversion of genistein was (93.47 +/- 2.40)%. Comparing with that without forming the genistin-nano-silica solid dispersion, the conversion increased 2.62 fold. At the same time, the product of hydrolysis was purified to get pure genistein. The method of enzymatic hydrolysis of genistin-nano-silica solid dispersion by snailase to obtain genistein is simple, efficiency and suitable for the modern scale production.

Magnetically responsive (nano) composites as perspective materials for environmental technology applications

Czech Academy of Sciences Publication Activity Database

Šafařík, Ivo; Šafaříková, Miroslava

-, č. 0 (2010), s. 85-90 R&D Projects: GA MPO(CZ) 2A-1TP1/094; GA MŠk OC09052 Institutional research plan: CEZ:AV0Z60870520 Keywords : magnetically responsive materials * ( nano )biocomposites * environmental technology Subject RIV: JI - Composite Materials

Nano dentistry

International Nuclear Information System (INIS)

Oh, S.; Park, Y.B.; Kim, S.; Jin, S.

2014-01-01

Nano technology in dentistry has drawn many scientists’ and clinicians’ attention to significant advances in the diagnosis, treatment, and prevention of oral disease. Also, nano materials in dentistry have been studied to overcome the physical and chemical characteristics of conventional dental materials. These interesting facts are the motivation of this special issue. The presented issue provides a variety of topics in the field of dentistry such as novel nano filled composite resin, the cytotoxicity of nanoparticles deposited on orthodontic bands, the osseointegration of 3D nano scaffold, and nano surface treated implant.

X-ray lithography for micro- and nano-fabrication at ELETTRA for interdisciplinary applications

International Nuclear Information System (INIS)

Di Fabrizio, E; Fillipo, R; Cabrini, S

2004-01-01

ELETTRA (http://www.elettra.trieste.it/index.html) is a third generation synchrotron radiation source facility operating at Trieste, Italy, and hosts a wide range of research activities in advanced materials analysis and processing, biology and nano-science at several various beam lines. The energy spectrum of ELETTRA allows x-ray nano-lithography using soft (1.5 keV) and hard x-ray (10 keV) wavelengths. The Laboratory for Interdisciplinary Lithography (LIILIT) was established in 1998 as part of an Italian national initiative on micro- and nano-technology project of INFM and is funded and supported by the Italian National Research Council (CNR), INFM and ELETTRA. LILIT had developed two dedicated lithographic beam lines for soft (1.5 keV) and hard x-ray (10 keV) for micro- and nano-fabrication activities for their applications in engineering, science and bio-medical applications. In this paper, we present a summary of our research activities in micro- and nano-fabrication involving x-ray nanolithography at LILIT's soft and hard x-ray beam lines

Emerging boom in nano magnetic particle incorporated high-Tc superconducting materials and technologies - A South African perspective

CSIR Research Space (South Africa)

Srinivasu, VV

2009-01-01

Full Text Available With a strategy to establish and embrace the emerging nano particle incorporated superconductivity technology (based on the HTS materials and nano magnetic particles) in South Africa, the author has initiated the following research activity in South...

Bioinspiration From Nano to Micro Scales

CERN Document Server

2012-01-01

Methods in bioinspiration and biomimicking have been around for a long time. However, due to current advances in modern physical, biological sciences, and technologies, our understanding of the methods have evolved to a new level. This is due not only to the identification of mysterious and fascinating phenomena but also to the understandings of the correlation between the structural factors and the performance based on the latest theoretical, modeling, and experimental technologies. Bioinspiration: From Nano to Micro Scale provides readers with a broad view of the frontiers of research in the area of bioinspiration from the nano to macroscopic scales, particularly in the areas of biomineralization, antifreeze protein, and antifreeze effect. It also covers such methods as the lotus effect and superhydrophobicity, structural colors in animal kingdom and beyond, as well as behavior in ion channels. A number of international experts in related fields have contributed to this book, which offers a comprehensive an...

Investigation of properties of modified oxides structured by nano technology

International Nuclear Information System (INIS)

Kurina, I.S.; Serebrennikova, O.V.; Rumyantsev, V.N.; Dvoryashin, A.M.

2009-01-01

Research results on the PuO 2 +MgO fuel composition with CeO 2 as a PuO 2 simulator are presented. The water nano technology for the production of oxide ceramic materials, developed in IPPE, was used for fabrication of powders and modified pellets. This technology includes obtaining precipitate, consisting of particles of different sizes as well as of nanoparticles, which is further calcined, pressed and sintered. It results in modifying structure of the sintered pellets. Modified pellets have anomalously high thermal conductivity measured by the axial heat flux method [ru

High performance nano-composite technology development

International Nuclear Information System (INIS)

Kim, Whung Whoe; Rhee, C. K.; Kim, S. J.; Park, S. D.; Kim, E. K.; Jung, S. Y.; Ryu, H. J.; Hwang, S. S.; Kim, J. K.; Hong, S. M.; Chea, Y. B.; Choi, C. H.; Kim, S. D.; Cho, B. G.; Lee, S. H.

1999-06-01

The trend of new material development are being to carried out not only high performance but also environmental attraction. Especially nano composite material which enhances the functional properties of components, extending the component life resulting to reduced the wastes and environmental contamination, has a great effect on various industrial area. The application of nano composite, depends on the polymer matrix and filler materials, has various application from semiconductor to medical field. In spite of nano composite merits, nano composite study are confined to a few special materials as a lab, scale because a few technical difficulties are still on hold. Therefore, the purpose of this study establishes the systematical planning to carried out the next generation projects on order to compete with other countries and overcome the protective policy of advanced countries with grasping over sea's development trends and our present status. (author).

High performance nano-composite technology development

Energy Technology Data Exchange (ETDEWEB)

Kim, Whung Whoe; Rhee, C. K.; Kim, S. J.; Park, S. D. [KAERI, Taejon (Korea, Republic of); Kim, E. K.; Jung, S. Y.; Ryu, H. J. [KRICT, Taejon (Korea, Republic of); Hwang, S. S.; Kim, J. K.; Hong, S. M. [KIST, Taejon (Korea, Republic of); Chea, Y. B. [KIGAM, Taejon (Korea, Republic of); Choi, C. H.; Kim, S. D. [ATS, Taejon (Korea, Republic of); Cho, B. G.; Lee, S. H. [HGREC, Taejon (Korea, Republic of)

1999-06-15

The trend of new material development are being to carried out not only high performance but also environmental attraction. Especially nano composite material which enhances the functional properties of components, extending the component life resulting to reduced the wastes and environmental contamination, has a great effect on various industrial area. The application of nano composite, depends on the polymer matrix and filler materials, has various application from semiconductor to medical field. In spite of nano composite merits, nano composite study are confined to a few special materials as a lab, scale because a few technical difficulties are still on hold. Therefore, the purpose of this study establishes the systematical planning to carried out the next generation projects on order to compete with other countries and overcome the protective policy of advanced countries with grasping over sea's development trends and our present status. (author).

Preservice Science Teachers' Views on Science-Technology-Society

Science.gov (United States)

Dikmentepe, Emel; Yakar, Zeha

2016-01-01

The aim of this study is to investigate the views of pre-service science teachers on Science-Technology-Society (STS). In the research, a descriptive research method was used and data were collected using the Views on Science-Technology-Society (VOSTS) Questionnaire. In general, the results of this study revealed that pre-service science teachers…

Project of international science-education center and integration problems of nano science education in far eastern region of Asia

International Nuclear Information System (INIS)

Plusnin, N I; Lazarev, G I

2008-01-01

Some conception of international science-education center on nano science in Vladivostok is presented. The conception is based on internal and external prerequisites. Internal one is high intellectual potential of institutes of Russian Academy of Sciences and universities of Vladivostok and external one is need of countries of Far Eastern region of Asia in high level manpower. The conception takes into account a specific distribution of science and education potential between Russian Academy of Sciences and Russian universities and a specific their dislocation in Vladivostok. First specific dictates some similarity of organization structure and function of international science-education center to typical science-education center in Russia. But as for dislocation of the international science-education center in Vladivostok, it should be near dislocation of institutes of Far Eastern Brunch of Russian Academy of Sciences in Vladivostok, which are dislocated very compactly in suburb zone of Vladivostok

High performance nano-composite technology development

Energy Technology Data Exchange (ETDEWEB)

Kim, Whung Whoe; Rhee, C. K.; Kim, S. J.; Park, S. D. [KAERI, Taejon (Korea, Republic of); Kim, E. K.; Jung, S. Y.; Ryu, H. J. [KRICT, Taejon (Korea, Republic of); Hwang, S. S.; Kim, J. K.; Hong, S. M. [KIST, Taejon (Korea, Republic of); Chea, Y. B. [KIGAM, Taejon (Korea, Republic of); Choi, C. H.; Kim, S. D. [ATS, Taejon (Korea, Republic of); Cho, B. G.; Lee, S. H. [HGREC, Taejon (Korea, Republic of)

1999-06-15

The trend of new material development are being to carried out not only high performance but also environmental attraction. Especially nano composite material which enhances the functional properties of components, extending the component life resulting to reduced the wastes and environmental contamination, has a great effect on various industrial area. The application of nano composite, depends on the polymer matrix and filler materials, has various application from semiconductor to medical field. In spite of nano composite merits, nano composite study are confined to a few special materials as a lab, scale because a few technical difficulties are still on hold. Therefore, the purpose of this study establishes the systematical planning to carried out the next generation projects on order to compete with other countries and overcome the protective policy of advanced countries with grasping over sea's development trends and our present status. (author).

Sensing of single electrons using micro and nano technologies: a review

Science.gov (United States)

Jalil, Jubayer; Zhu, Yong; Ekanayake, Chandima; Ruan, Yong

2017-04-01

During the last three decades, the remarkable dynamic features of microelectromechanical systems (MEMS) and nanoelectromechanical systems (NEMS), and advances in solid-state electronics hold much potential for the fabrication of extremely sensitive charge sensors. These sensors have a broad range of applications, such as those involving the measurement of ionization radiation, detection of bio-analyte and aerosol particles, mass spectrometry, scanning tunneling microscopy, and quantum computation. Designing charge sensors (also known as charge electrometers) for electrometry is deemed significant because of the sensitivity and resolution issues in the range of micro- and nano-scales. This article reviews the development of state-of-the-art micro- and nano-charge sensors, and discusses their technological challenges for practical implementation.

Physical Sciences 2007 Science & Technology Highlights

Energy Technology Data Exchange (ETDEWEB)

Hazi, A U

2008-04-07

The Physical Sciences Directorate applies frontier physics and technology to grand challenges in national security. Our highly integrated and multidisciplinary research program involves collaborations throughout Lawrence Livermore National Laboratory, the National Nuclear Security Administration, the Department of Energy, and with academic and industrial partners. The Directorate has a budget of approximately $150 million, and a staff of approximately 350 employees. Our scientists provide expertise in condensed matter and high-pressure physics, plasma physics, high-energy-density science, fusion energy science and technology, nuclear and particle physics, accelerator physics, radiation detection, optical science, biotechnology, and astrophysics. This document highlights the outstanding research and development activities in the Physical Sciences Directorate that made news in 2007. It also summarizes the awards and recognition received by members of the Directorate in 2007.

Micro- and nano-technologies to probe the mechano-biology of the brain.

Science.gov (United States)

Tay, Andy; Schweizer, Felix E; Di Carlo, Dino

2016-05-24

Biomechanical forces have been demonstrated to influence a plethora of neuronal functions across scales including gene expression, mechano-sensitive ion channels, neurite outgrowth and folding of the cortices in the brain. However, the detailed roles biomechanical forces may play in brain development and disorders has seen limited study, partly due to a lack of effective methods to probe the mechano-biology of the brain. Current techniques to apply biomechanical forces on neurons often suffer from low throughput and poor spatiotemporal resolution. On the other hand, newly developed micro- and nano-technologies can overcome these aforementioned limitations and offer advantages such as lower cost and possibility of non-invasive control of neuronal circuits. This review compares the range of conventional, micro- and nano-technological techniques that have been developed and how they have been or can be used to understand the effect of biomechanical forces on neuronal development and homeostasis.

Synthesis and Oxidation of Silver Nano-particles

Science.gov (United States)

2011-01-01

solution (20%wt propyl alcohol, 5%wt hydrochloric acid and 5%wt stannous chloride in water). Scheme 1b and c illustrate the sensitization and silver... Synthesis and Oxidation of Silver Nano-particles Hua Qi*, D. A. Alexson, O.J. Glembocki and S. M. Prokes* Electronics Science and Technology...energy dispersive x-ray (EDX) techniques. The results Quantum Dots and Nanostructures: Synthesis , Characterization, and Modeling VIII, edited by Kurt

FOREWORD: 23rd National Symposium on Plasma Science & Technology (PLASMA-2008)

Science.gov (United States)

Das, A. K.

2010-01-01

The Twentieth Century has been a defining period for Plasma Science and Technology. The state of ionized matter, so named by Irving Langmuir in the early part of twentieth century, has now evolved in to a multidisciplinary area with scientists and engineers from various specializations working together to exploit the unique properties of the plasma medium. There have been great improvements in the basic understanding of plasmas as a many body system bound by complex collective Coulomb interactions of charges, atoms, molecules, free radicals and photons. Simultaneously, many advanced plasma based technologies are increasingly being implemented for industrial and societal use. The emergence of the multination collaborative project International Thermonuclear Experimental Reactor (ITER) project has provided the much needed boost to the researchers working on thermonuclear fusion plasmas. In addition, the other plasma applications like MHD converters, hydrogen generation, advanced materials (synthesis, processing and surface modification), environment (waste beneficiation, air and water pollution management), nanotechnology (synthesis, deposition and etching), light production, heating etc are actively being pursued in governmental and industrial sectors. For India, plasma science and technology has traditionally remained an important area of research. It was nearly a century earlier that the Saha ionization relation pioneered the way to interpret experimental data from a vast range of near equilibrium plasmas. Today, Indian research contributions and technology demonstration capabilities encompass thermonuclear fusion devices, nonlinear plasma phenomena, plasma accelerators, beam plasma interactions, dusty and nonneutral plasmas, industrial plasmas and plasma processing of materials, nano synthesis and structuring, astrophysical and space plasmas etc. India's participation in the ITER programme is now reflected in increased interest in the research and development

Applications and research on nano power electronics: an adventure beyond quantum electronics

Science.gov (United States)

Chakraborty, Arindam; Emadi, Ali

2005-06-01

This paper is a roadmap to the exhaustive role of the newly emerging field of nanotechnology in various application and research areas. Some of the today's important topics are plasma, dielectric layer semiconductor, and carbon nanoparticle based technologies. Carbon nanotubes are very useful for the purpose of fabricating nano opto power devices. The basic concept behind tunneling of electrons has been utilized to define another scope of this technology, and thus came many quantum scale tunneling devices and elements. Fabrication of crystal semiconductors of high quality along with oxides of nano aspect would give rise to superior device performance and find applications such as LEDs, LASER, VLSI technology and also in highly efficient solar cells. Many nano-research based organizations are fully devoted to develop nano power cells, which would give birth to new battery cells, tunneling devises, with high power quality, longer lives, and higher activation rates. Different electronics industries as well as the military organizations would be largely benefited due to this major component and system design ideas of 'Smart Power' technologies. The contribution of nano scale power electronics would be realized in various fields like switching devices, electromechanical systems and quantum science. Such a sophisticated technology will have great impact on the modernization of robotics; space systems, automotive systems and many other fields. The highly emerging field of nanomedicine according to specialists would bring a dramatic revolution in the present century. However nanomedicine is nothing but an integration of biology, medicine and technology. Thermoelectric materials as been referred earlier also are used in case of implantable medical equipments for generation of electric power sufficient for those equipments.

Convergence of emerging science and technology trends for defense, security, and human performance

International Nuclear Information System (INIS)

Vaseashta, Ashok

2010-01-01

Full text: Recent technological innovations have changed the landscape of traditional scientific research. Advances in the nano- and bio-sciences, and materials and information processing are driving innovations at a phenomenal rate, resulting in greater interest yet uncertainty in the chemical-biological threat environment, research and development and other fields of policy, and overall preparedness. Conversely, the synergy arising from the convergence of nanotechnology, biotechnology, information processing and cognitive sciences (NBIC) offers great potential for transformational, revolutionary opportunities with many technological applications. Employing a new initiative termed 'Technology Foresight, Assessment, and Road-Mapping' (Tech-FARM TM ) - a multi dimensional futures-oriented approach for identification and management of emerging and/or disruptive science and technology. In literature similar initiative termed as GRAIN and BANG appear with similarity to NBIC - however Tech-FARM is comprehensive and an exhaustive method. Trans-disciplinary principles underlying NBIC convergence facilitates the development of visions and projections of future possible scientific and technological advances, environments, and productive collaborations for integrated, novel and/or unconventional solutions for 21 st century chem. -bio defense challenges. Incorporation of cognitive sciences refers to human performance enhancement in battlefield theatre. The dynamic relationship between contextual influence (socio-economical factors) and technological development is of critical consideration for S and T futures analyses. The Tech-FARM approach comprises three over-lapping practices of futures studies, including: foresight, the identification of future S and T development and their interaction with society and environment with the purpose of guiding actions to produce a more favorable future; assessment, which is concerned with the unintended, indirect, and delayed impacts of

When technology, science and culture meet: insights from ancient Chinese technology

Science.gov (United States)

Lee, Yeung Chung

2017-10-01

This paper draws together two important agendas in science education. The first is making science education more inclusive such that students from non-Western or indigenous cultures can benefit from culturally relevant curricula. The second is integrating technology into the curriculum under the umbrella of Science-Technology-Society (STS) education to embrace the social aspects of science, with technology serving as a bridge. The advancement of the first agenda is hindered by the pursuance by both Western and non-Western societies of narrow cultural and practical goals without considering the development of science and technology from a cross-cultural perspective. The second agenda is limited by the misconception that technology is applied science, leading to the exclusion from STS discussions of pre-science or indigenous technologies developed by non-Western cultures. Through selected case studies of the evolution of Chinese traditional technologies and their interaction with science, this paper offers a perspective from the Far East, and argues for situating culturally responsive science education in broader historical and cross-cultural contexts to acknowledge the multi-cultural contributions to science and technology. A form of cross-cultural STS education is advanced, encompassing the cultural basis of technological developments, technology diffusion, interactions of traditional technology with science, and the potential development of traditional or indigenous technologies. This approach provides a bridge between the existing universal science education paradigm promoted in the West and the different forms of multi-cultural education advocated by indigenous science educators. To translate theory into practice, a conceptual framework is proposed in which the essential transdisciplinary knowledge base, curricular goals, and pedagogical approaches are embedded.

The Extraordinary Progress in Very Early Cancer Diagnosis and Personalized Therapy: The Role of Onco markers and Nano technology

International Nuclear Information System (INIS)

Fruscella, M.; Crema, A.; Carloni, G.; Fruscella, M.; Ponzetto, A.

2016-01-01

The impact of nano technology on oncology is revolutionizing cancer diagnosis and therapy and largely improving prognosis. This is mainly due to clinical translation of the most recent findings in cancer research, that is, the application of bio- and nano technologies. Cancer genomics and early diagnostics are increasingly playing a key role in developing more precise targeted therapies for most human tumors. In the last decade, accumulation of basic knowledge has resulted in a tremendous breakthrough in this field. Nano oncology, through the discovery of new genetic and epigenetic biomarkers, has facilitated the development of more sensitive biosensors for early cancer detection and cutting-edge multi functionalized nanoparticles for tumor imaging and targeting. In the near future, nano oncology is expected to enable a very early tumor diagnosis, combined with personalized therapeutic approaches.

Educational Technologies in Health Science Libraries: Teaching Technology Skills

Science.gov (United States)

Hurst, Emily J.

2014-01-01

As technology rapidly changes, libraries remain go-to points for education and technology skill development. In academic health sciences libraries, trends suggest librarians provide more training on technology topics than ever before. While education and training have always been roles for librarians, providing technology training on new mobile devices and emerging systems requires class creation and training capabilities that are new to many. To appeal to their users, many health sciences librarians are interested in developing technology-based classes. This column explores the question: what skills are necessary for developing and teaching technology in an academic health sciences library setting? PMID:24528269

Educational technologies in health sciences libraries: teaching technology skills.

Science.gov (United States)

Hurst, Emily J

2014-01-01

As technology rapidly changes, libraries remain go-to points for education and technology skill development. In academic health sciences libraries, trends suggest librarians provide more training on technology topics than ever before. While education and training have always been roles for librarians, providing technology training on new mobile devices and emerging systems requires class creation and training capabilities that are new to many librarians. To appeal to their users, many health sciences librarians are interested in developing technology-based classes. This column explores the question: what skills are necessary for developing and teaching technology in an academic health sciences library setting?

Introduction to the history of science and technology

International Nuclear Information System (INIS)

Jang, Byeong Ju

1998-08-01

This book contains origin of technology and development of civilization, national philosophy and ancient science and technology, Middle Age society and accumulation of science and technology, the era of the Renaissance and science and technology, development of science revolution and experimental science, technology and Mechanistic nature view of the manufacture time, science and evolution theory of the time of enlightenment idea, science and technology of the Industrial Revolution time, Korea's science and technology, modern technique and scientific approach, science and technology of the twenty-first century, and the role of science and technology in modern society.

Introduction to the history of science and technology

Energy Technology Data Exchange (ETDEWEB)

Jang, Byeong Ju

1998-08-15

This book contains origin of technology and development of civilization, national philosophy and ancient science and technology, Middle Age society and accumulation of science and technology, the era of the Renaissance and science and technology, development of science revolution and experimental science, technology and Mechanistic nature view of the manufacture time, science and evolution theory of the time of enlightenment idea, science and technology of the Industrial Revolution time, Korea's science and technology, modern technique and scientific approach, science and technology of the twenty-first century, and the role of science and technology in modern society.

Nano materials for Energy and Environmental Applications

International Nuclear Information System (INIS)

Srinivasan, S.; Kannan, A.M.; Kothurkar, N.; Khalil, Y.; Kuravi, S.

2015-01-01

Nano materials enabled technologies have been seamlessly integrated into applications such as aviation and space, chemical industry, optics, solar hydrogen, fuel cell, batteries, sensors, power generation, aeronautic industry, building/construction industry, automotive engineering, consumer electronics, thermoelectric devices, pharmaceuticals, and cosmetic industry. Clean energy and environmental applications often demand the development of novel nano materials that can provide shortest reaction pathways for the enhancement of reaction kinetics. Understanding the physicochemical, structural, microstructural, surface, and interface properties of nano materials is vital for achieving the required efficiency, cycle life, and sustain ability in various technological applications. Nano materials with specific size and shape such as nano tubes, nano fibers/nano wires, nano cones, nano composites, nano rods, nano islands, nanoparticles, nanospheres, and nano shells to provide unique properties can be synthesized by tuning the process conditions.

ICMCS-2009: 6. international conference on microelectronics and computer science. Proceedings

International Nuclear Information System (INIS)

Tiginyanu, I.M.; Balmus, I.

2009-01-01

This book includes articles which cover a vast range of subjects, such as: micro- and optoelectronics, nano science and nanotechnology, computer science, electronics and communications, new technologies for university education, etc.

Improving Risk Governance of Emerging Technologies through Public Engagement: The Neglected Case of Nano-Remediation?

DEFF Research Database (Denmark)

Grieger, Khara Deanne; Wickson, Fern; Andersen, Henning Boje

2012-01-01

: the use of nanoparticles for environmental remediation (nano-remediation). Through our review and analysis we find that the main approaches to incorporating public engagement into governance strategies have been the generation of a better understanding of public perceptions of NT and the setting...... of general research priorities. In the case of nano-remediation, we find that public engagement efforts have been extremely limited, even though this technology has been used in the field in several countries and highlighted as potentially problematic by others. Finally, we provide recommendations...... for improving the links between public engagement and risk assessment and specifically call for more work on the case of nano-remediation....

Evaluation of nano-technology-modified zirconia oral implants: a study in rabbits.

Science.gov (United States)

Lee, Jaebum; Sieweke, Janet H; Rodriguez, Nancy A; Schüpbach, Peter; Lindström, Håkan; Susin, Cristiano; Wikesjö, Ulf M E

2009-07-01

The objective of this study was to screen candidate nano-technology-modified, micro-structured zirconia implant surfaces relative to local bone formation and osseointegration. Proprietary nano-technology surface-modified (calcium phosphate: CaP) micro-structured zirconia implants (A and C), control micro-structured zirconia implants (ZiUnite), and titanium porous oxide implants (TiUnite) were implanted into the femoral condyle in 40 adult male New Zealand White rabbits. Each animal received one implant in each hind leg; thus, 20 animals received A and C implants and 20 animals received ZiUnite and TiUnite implants in contralateral hind legs. Ten animals/group were euthanized at weeks 3 and 6 when biopsies of the implant sites were processed for histometric analysis using digital photomicrographs produced using backscatter scanning electron microscopy. The TiUnite surface demonstrated significantly greater bone-implant contact (BIC) (77.6+/-2.6%) compared with the A (64.6+/-3.6%) and C (62.2+/-3.1%) surfaces at 3 weeks (p0.05). Similarly, there were non-significant differences between the TiUnite and the ZiUnite surfaces (p>0.05). At 6 weeks, there were no significant differences in BIC between the TiUnite (67.1+/-4.2%), ZiUnite (69.7+/-5.7%), A (68.6+/-1.9%), and C (64.5+/-4.1%) surfaces (p>0.05). TiUnite and ZiUnite implant surfaces exhibit high levels of osseointegration that, in this model, confirm their advanced osteoconductive properties. Addition of CaP nano-technology to the ZiUnite surface does not enhance the already advanced osteoconductivity displayed by the TiUnite and ZiUnite implant surfaces.

Nanocrystals Technology for Pharmaceutical Science.

Science.gov (United States)

Cheng, Zhongyao; Lian, Yumei; Kamal, Zul; Ma, Xin; Chen, Jianjun; Zhou, Xinbo; Su, Jing; Qiu, Mingfeng

2018-05-17

Nanocrystals technology is a promising method for improving the dissolution rate and enhancing the bioavailability of poorly soluble drugs. In recent years, it has been developing rapidly and applied to drug research and engineering. Nanocrystal drugs can be formulated into various dosage forms. This review mainly focused on the nanocrystals technology and its application in pharmaceutical science. Firstly, different preparation methods of nanocrystal technology and the characterization of nanocrystal drugs are briefly described. Secondly, the application of nanocrystals technology in pharmaceutical science is mainly discussed followed by the introduction of sustained release formulations. Then, the scaling up process, marketed nanocrystal drug products and regulatory aspects about nanodrugs are summarized. Finally, the specific challenges and opportunities of nanocrystals technology for pharmaceutical science are summarized and discussed. This review will provide a comprehensive guide for scientists and engineers in the field of pharmaceutical science and biochemical engineering. Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.org.

Recent technological advances in the application of nano-catalytic technology to the enhanced recovery and upgrading of bitumen and heavy oils

Energy Technology Data Exchange (ETDEWEB)

Pereira Almao, P. [Calgary Univ., AB (Canada). Schulich School of Engineering

2013-11-01

Advances in Nanotechnology, such as manufacturing of nano-catalysts allow the online (during processing) and on site production of nano-catalysts for heavy oils upgrading. These inventions have also facilitated the development of two lines of heavy oils upgrading processes that make use of nano-catalysts for producing upgraded oil: In Situ Upgrading and Field Upgrading. Producing chemical upgrading of heavy oils is achievable and economically viable at lower temperatures and lower pressures than used in most upgraders if the use of nano-catalysts were implemented. The spontaneity of thermal, steam and hydro processing reactions for converting the different chemical families of hydrocarbons present in the heaviest fractions of heavy oils and bitumen (HO-B) into lighter products was shown recently. Spontaneity was measured by the value of the change of free energy at low pressure. These undesirable paths are spontaneous and uncontrollable under thermal cracking conditions, and require providing years of residence time for intermolecular hydrogen redistribution to minimize olefins polymerization, if at all possible. Instead, hydroprocessing in the presence of hydrogen activating catalysts would create an abundance of hydrogen radicals impeding large molecules condensation and olefins proliferation. In Situ Upgrading: performs coupled Enhanced Oil Recovery with In Reservoir Upgrading via Hot Fluid Injection (HFI). The heat handling of this HFI process and the production of transportable oil with no need of diluent from the start of operation completes the originality of it. This technology uses heavy fractions separated from produced oil to reintroduce heat into the reservoir along with suspended nano-catalysts and hydrogen. These components react in the well bore and inside the reservoir to release more heat (hydroprocessing reactions are exothermic) producing light gases and volatile hydrocarbons that contribute to increase oil detachment from the rock resulting in

Endosomolytic Nano-Polyplex Platform Technology for Cytosolic Peptide Delivery To Inhibit Pathological Vasoconstriction.

Science.gov (United States)

Evans, Brian C; Hocking, Kyle M; Kilchrist, Kameron V; Wise, Eric S; Brophy, Colleen M; Duvall, Craig L

2015-06-23

A platform technology has been developed and tested for delivery of intracellular-acting peptides through electrostatically complexed nanoparticles, or nano-polyplexes, formulated from an anionic endosomolytic polymer and cationic therapeutic peptides. This delivery platform has been initially tested and optimized for delivery of two unique vasoactive peptides, a phosphomimetic of heat shock protein 20 and an inhibitor of MAPKAP kinase II, to prevent pathological vasoconstriction (i.e., vasospasm) in human vascular tissue. These peptides inhibit vasoconstriction and promote vasorelaxation by modulating actin dynamics in vascular smooth muscle cells. Formulating these peptides into nano-polyplexes significantly enhances peptide uptake and retention, facilitates cytosolic delivery through a pH-dependent endosomal escape mechanism, and enhances peptide bioactivity in vitro as measured by inhibition of F-actin stress fiber formation. In comparison to treatment with the free peptides, which were endowed with cell-penetrating sequences, the nano-polyplexes significantly increased vasorelaxation, inhibited vasoconstriction, and decreased F-actin formation in the human saphenous vein ex vivo. These results suggest that these formulations have significant potential for treatment of conditions such as cerebral vasospasm following subarachnoid hemorrhage. Furthermore, because many therapeutic peptides include cationic cell-penetrating segments, this simple and modular platform technology may have broad applicability as a cost-effective approach for enhancing the efficacy of cytosolically active peptides.

Cancer Nano technology Using Elastin-Like Polypeptides

International Nuclear Information System (INIS)

Siti Najila Mohd Janib

2014-01-01

Despite progress in understanding cancer biology, this knowledge has not translated into comparable advances in the clinic. Two fundamental problems currently stalling the efficient treatment of cancer have been detecting cancer early enough for successful treatment and avoiding excessive toxicity to normal tissues. In view of this, cancer still remains one of the leading causes of mortality worldwide, affecting over 10 million new patients every year. Clearly the development of novel approaches for early detection and treatment of cancer is urgently needed to increase patient survival. Recently, nano technology-based systems have emerged as novel therapeutic modalities for cancer treatment. Tiny man made nanoparticles, much smaller than a virus, are being developed to package, transport, and deliver imaging and therapeutic agents. Co-inclusion of these agents, into nano carriers might be advantageous because they increase solubility of hydrophobic drugs, enhance permeability across physiological barriers, alter drug biodistribution, increase local bioavailability and reduce side effects. Initial findings have been promising and nanoparticles have been shown to deliver therapeutic agents to target cells and effect tumor growth. To this end our lab is investigating a class of biodegradable and biocompatible polymers known as elastin-like polypeptides (ELP). Elastin like polypeptide is a bio polymer derived from the structural motif found in mammalian elastin protein and has a sequence dependent transition temperature that can be used as nano carriers to treat diseases. ELPs are characterized by the pentameric repeat VPGXG, where X can be any amino acid. All functional ELPs undergo inverse phase transition whereby below its transition temperature, they exist in a solubilized form while above its transition temperature they undergo phase separation which leads to their aggregation in solution. This process is reversible. Phase transition can also be triggered by other

Science, technology, and pedagogy: Exploring secondary science teachers' effective uses of technology

Science.gov (United States)

Guzey, Siddika Selcen

Technology has become a vital part of our professional and personal lives. Today we cannot imagine living without many technological tools such as computers. For the last two decades technology has become inseparable from several areas, such as science. However, it has not been fully integrated into the field of education. The integration of technology in teaching and learning is still challenging even though there has been a historical growth of Internet access and available technology tools in schools (U.S. Department of Education, National Center for Education Statistics, 2006). Most teachers have not incorporated technology into their teaching for various reasons such as lack of knowledge of educational technology tools and having unfavorable beliefs about the effectiveness of technology on student learning. In this study, three beginning science teachers who have achieved successful technology integration were followed to investigate how their beliefs, knowledge, and identity contribute to their uses of technology in their classroom instruction. Extensive classroom observations and interviews were conducted. The findings demonstrate that the participating teachers are all intrinsically motivated to use technology in their teaching and this motivation allows them to enjoy using technology in their instruction and keeps them engaged in technology use. These teachers use a variety of technology tools in their instruction while also allowing students to use them, and they posit a belief set in favor of technology. The major findings of the study are displayed in a model which indicates that teachers' use of technology in classroom instruction was constructed jointly by their technology, pedagogy, and content knowledge; identity; beliefs; and the resources that are available to them and that the internalization of the technology use comes from reflection. The study has implications for teachers, teacher educators, and school administrators for successful technology

Outline of quantum beam science research and J-PARC project

International Nuclear Information System (INIS)

Okada, Sohei

2009-01-01

The word of atomic power indicates the fields of science and technology described by not only nuclear energy but also radiation utilization where Quantum Beam Technology' is intrinsic to both high intensity particles as neutron, proton, ion, electron, muon, for example, and electromagnetic waves as synchrotron radiation and light quantum. The quantum beams have functions to 'observe' with 'nano eyes', to 'create' with 'nano hands' and to 'cure' with 'nano- scalpel'. The applications are widely spread to the industries, research and development (R and D) and medical treatments. The Japan Atomic Energy Agency, JAEA, pursues R and D activities in order to contribute to sustain global environments and energy production, to qualify life science and advanced medical treatment, to develop new materials and to innovate on quantum beam probes. Authors constructed 'J-PARC', the Japan Proton Accelerator Research Complex in cooperation with the High Energy Accelerator Research Organization, and commenced its operation in fiscal 2008. The facilities started to provide neutrons and other secondary particles to each of beam lines at increasing intensities, by proton bombardment onto a target. The objective of this project is to utilize the particles for a variety of areas in science and technology from materials science, life science and particle physics to industrial applications. The completion of the facilities will open new prospects for advanced applications of quantum beams. (K. Kikuchi)

Accelerators in Science and Technology

CERN Document Server

Kailas, S

2002-01-01

Accelerators built for basic research in frontier areas of science have become important and inevitable tools in many areas of science and technology. Accelerators are examples of science driven high technology development. Accelerators are used for a wide ranging applications, besides basic research. Accelerator based multidisciplinary research holds great promise

Physical Sciences 2007 Science and Technology Highlights

International Nuclear Information System (INIS)

Hazi, A.U.

2008-01-01

The Physical Sciences Directorate applies frontier physics and technology to grand challenges in national security. Our highly integrated and multidisciplinary research program involves collaborations throughout Lawrence Livermore National Laboratory, the National Nuclear Security Administration, the Department of Energy, and with academic and industrial partners. The Directorate has a budget of approximately $150 million, and a staff of approximately 350 employees. Our scientists provide expertise in condensed matter and high-pressure physics, plasma physics, high-energy-density science, fusion energy science and technology, nuclear and particle physics, accelerator physics, radiation detection, optical science, biotechnology, and astrophysics. This document highlights the outstanding research and development activities in the Physical Sciences Directorate that made news in 2007. It also summarizes the awards and recognition received by members of the Directorate in 2007

White paper on science and technology, 1993

International Nuclear Information System (INIS)

1993-01-01

From now on, science and technology is expected to play the role of finding solutions to a variety of problems, such as the grave situation of global environment and the problems specific to Japan like aging population and declining birth rate. However, young people are losing their interest in science and technology, and it is an extremely grave concern. The White Paper in this year adopts the relation of young people with science and technology as its main theme, and the declining popularity of science and technology among young people, the danger of its consequence, its background and others are analyzed. The measures toward the society in which science and technology come in contact with daily life are discussed. As to the present status of science and technology in Japan and other countries, research and development expenditures, research personnel and the trend related to research performance are reported. As to the development of science and technology policy in Japan, the general guideline, the Council for Science and Technology, the structures for promoting science and technology and the promotion of research activities are described. (K.I.)

The investigation of science teachers’ experience in integrating digital technology into science teaching

Science.gov (United States)

Agustin, R. R.; Liliasari; Sinaga, P.; Rochintaniawati, D.

2018-05-01

The use of technology into science learning encounters problems. One of the problem is teachers’ less technological pedagogical and content knowledge (TPACK) on the implementation of technology itself. The purpose of this study was to investigate science teachers’ experience in using digital technology into science classroom. Through this study science teachers’ technological knowledge (TK) and technological content knowledge (TCK) can be unpacked. Descriptive method was used to depict science teachers’ TK and TCK through questionnaire that consisted of 20 questions. Subjects of this study were 25 science teachers in Bandung, Indonesia. The study was conducted in the context of teacher professional training. Result shows that science teachers still have less TK, yet they have high TCK. The teachers consider characteristics of concepts as main aspect for implementing technology into science teaching. This finding describes teachers’ high technological content knowledge. Meanwhile, science teachers’ technological knowledge was found to be still low since only few of them who can exemplify digital technology that can be implemented into several science concept. Therefore, training about technology implementation into science teaching and learning is necessary as a means to improve teachers’ technological knowledge.

Science & Technology Review September 2017

Energy Technology Data Exchange (ETDEWEB)

Duoss, Eric B. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Kotta, Paul R. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Meissner, Caryn N. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Chinn, Ken [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

2017-08-16

This is the September 2017 edition of the LLNL, Science and Technology Review. At Lawrence Livermore National Laboratory, we focus on science and technology research to ensure our nation’s security. We also apply that expertise to solve other important national problems in energy, bioscience, and the environment. Science & Technology Review is published eight times a year to communicate, to a broad audience, the Laboratory’s scientific and technological accomplishments in fulfilling its primary missions. The publication’s goal is to help readers understand these accomplishments and appreciate their value to the individual citizen, the nation, and the world.

Nano technology for imaging and drug delivery in cancer

International Nuclear Information System (INIS)

Naz, S.; Qadir, M.I.; Ali, M.; Janbaz, K.H.

2012-01-01

Nanoparticles are multifunctional in characteristics and may be used for diagnosis as well as treatment of cancer. Nanoparticles enhance permeability, retention effects and target the tumor by avoiding reticuloendothelial system. The various nano technological approaches are used in treatment of the diseases and imaging of biological materials; like localized delivery of heat by nanoparticles, mini emulsion polymerization by nanoparticles, nanoparticles responsive to pH gradient and Nanoparticles along with ultrasonic radiations. In future, new herbal nanoparticles may be proved better in treatment of cancer and may improve life style of cancer patient. (author)

Science and Technology Policy

DEFF Research Database (Denmark)

Baark, Erik

1996-01-01

This paper examines the status of science and technology in Mongolia, and discusses the policy issues which have emerged with the transition to market economy in recent years.......This paper examines the status of science and technology in Mongolia, and discusses the policy issues which have emerged with the transition to market economy in recent years....

Fundamental Issues of Nano-fluid Behavior

International Nuclear Information System (INIS)

Williams, Wesley C.

2006-01-01

This paper will elucidate some of the behaviors of nano-fluids other than the abnormal conductivity enhancement, which are of importance to the experimental and engineering use of nano-fluids. Nano-fluid is the common name of any sol colloid involving nano-scale (less than 100 nm) sized particles dispersed within a base fluid. It has been shown previously that the dispersion of nano-particulate metallic oxides into water can increase thermal conductivity up to 30-40% over that of the base fluid and anomalously more than the mere weighed average of the colloid. There is a great potential for the use of nano-fluids as a way to enhance fluid/thermal energy transfer systems. Due to the recentness of nano-fluid science, there are still many issues which have not been fully investigated. This paper should act as a primer for the basic understanding of nano-fluid behavior. Particle size and colloid stability are of key importance to the functionality of nano-fluids. The pH and concentration/loading of nano-fluids can alter the size of the nano-particles and also the stability of the fluids. It will be shown through experiment and colloid theory the importance of these parameters. Furthermore, most of the existing literature uses volume percentage as the measure of particle loading, which can often be misleading. There will be discussion of this and other misleading ideas in nano-fluid science. (author)

Track-etch membranes enabled nano-/microtechnology: A review

International Nuclear Information System (INIS)

Chakarvarti, S.K.

2009-01-01

tunneling phenomenon, optical, magnetic, and chemical and other important functional attributes etc are found to be enhanced when the size reduction comes into play. This review article addresses the art and science of specific technique-the 'Template Synthesis'(TS) used as a route in the development of nano-/micromaterials and structures involving metals, non-metals, semiconductors, magnetic multilayered nanowires, conducting polymers, glasses, nanotubules, wires and whiskers etc. The recent past has witnessed keen interest being generated on the use of innovative technologies like TS in the production of nanomaterials' fabrication reported from various authors and from our lab. The strategy for embedding matter of interest within the etched pores or channels in the template is the material's placement through some suitable mechanism at the desired places viz., pores.

Track-etch membranes enabled nano-/microtechnology: A review

Energy Technology Data Exchange (ETDEWEB)

Chakarvarti, S.K., E-mail: skchakarvarti@gmail.co [Department of Physics, National Institute of Technology, Institution of National Importance, Kurukshetra 136 119 (India)

2009-10-15

tunneling phenomenon, optical, magnetic, and chemical and other important functional attributes etc are found to be enhanced when the size reduction comes into play. This review article addresses the art and science of specific technique-the 'Template Synthesis'(TS) used as a route in the development of nano-/micromaterials and structures involving metals, non-metals, semiconductors, magnetic multilayered nanowires, conducting polymers, glasses, nanotubules, wires and whiskers etc. The recent past has witnessed keen interest being generated on the use of innovative technologies like TS in the production of nanomaterials' fabrication reported from various authors and from our lab. The strategy for embedding matter of interest within the etched pores or channels in the template is the material's placement through some suitable mechanism at the desired places viz., pores.

76 FR 8788 - National Nanotechnology Coordination Office; Bridging NanoEHS Research Efforts: A Joint US-EU...

Science.gov (United States)

2011-02-15

... OFFICE OF SCIENCE AND TECHNOLOGY POLICY National Nanotechnology Coordination Office; Bridging NanoEHS Research Efforts: A Joint US-EU Workshop: Public Meeting AGENCY: National Nanotechnology Coordination Office, STPO. ACTION: Notice of public meeting. SUMMARY: The National Nanotechnology Coordination...

Journal of Applied Science, Engineering and Technology

African Journals Online (AJOL)

The Journal of Applied Science, Engineering and Technology covers research activities and development in the field of Applied Sciences and Technology as it relates to Agricultural Engineering, Biotechnology, Computer Science and Engineering Computations, Civil Engineering, Food Science and Technology, Electrical ...

Micro-Mini & Nano-Dosimetry & Innovative Technologies in Radiation Therapy (MMND&ITRO2016)

Science.gov (United States)

2017-01-01

The biennial MMND (formerly MMD) - IPCT workshops, founded in collaboration with Memorial Sloan Kettering Cancer Center (MSKCC) in 2001, has become an important international multidisciplinary forum for the discussion of advanced dosimetric technology for radiation therapy quality assurance (QA) and space science, as well as advanced technologies for prostate cancer treatment. In more recent years, the interests of participants and the scope of the workshops have extended far beyond prostate cancer treatment alone to include all aspects of radiation therapy, radiation science and technology. We therefore decided to change the name in 2016 to Innovative Technologies in Radiation Oncology (ITRO). MMND ITRO 2016 was held on 26-31 January, 2016 at the beautiful Wrest Point Hotel in Hobart, Tasmania and attracted an outstanding international faculty and nearly 200 delegates from 18 countries (http://mmnditro2016.com/) The MMND 2016 program continued to cover advanced medical physics aspects of IMRT, IGRT, VMAT, SBRT, MRI LINAC, innovative brachytherapy, and synchrotron MRT. The demand for sophisticated real time and high temporal and spatial resolution (down to the submillimetre scale) dosimetry methods and instrumentation for end-to-end QA for these radiotherapy technologies is increasing. Special attention was paid to the contribution of advanced imaging and the application of nanoscience to the recent improvements in imaging and radiotherapy. The last decade has seen great progress in charged particle therapy technology which has spread throughout the world and attracted strong current interest in Australia. This demands a better understanding of the fundamental aspects of ion interactions with biological tissue and the relative biological effectiveness (RBE) of protons and heavy ions. The further development of computational and experimental micro-and nano-dosimetry for ions has important application in radiobiology based treatment planning and space radiation

Fiscal 1998 research report on the R and D on produce process technology of eco-tailored tribo-materials/R and D on produce process technology of nano structure materials; Eco tailored tribo material sosei process gijutsu no kenkyu kaihatsu / nano metoru oda de seigyosareta material sosei process gijutsu no kenkyu kaihatsu 1998 nendo seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

In the R and D on produce process technology of nano structure materials, for reduction of friction and abrasion due to severe use conditions of automobile piston rings and valves, development of optimized produce process technology of eco-tailored tribo-materials with nano structures is in promotion by applying complex ion processing technology possible to control nano structures. In fiscal 1998, study was made on comparison of various ion processes and formation of nano structure single-phase films, and formation of Ti-Si system films was attempted as one of candidates of nano structure films. Problem points of existing test equipment as evaluation equipment of friction and abrasion for cams, shims and piston rings were arranged, and improvement and development of such equipment were considered. In the development of tribology evaluation technology, study was made on the sliding condition, environment and situation of a test equipment possible to simulate sliding of cams and shims, and the applicability of such equipment was also evaluated. (NEDO)

ICMCS-2007: 5. international conference on microelectronics and computer science. Proceedings. V. 1

International Nuclear Information System (INIS)

Kanter, V.; Balmus, I.

2007-01-01

This book includes articles which cover a vast range of subjects, such as: micro- and optoelectronics, nano science and nanotechnology, computer science, electronics and communications, new technologies for university education, etc.

New Prominence for Science and Technology.

Science.gov (United States)

Issues in Science and Technology, 1998

1998-01-01

States that science and technology research reached a new level of exposure in the U.S. government in 1997, particularly environmental science, cloning, international cooperation on the International Space Station, and information technologies. Lawmakers introduced research legislation and the House Science Committee launched a science policy…

Science and technology

CERN Document Server

Chorafas, Dimitris N

2014-01-01

The aim of this book is to explore science and technology from the viewpoint of creating new knowledge, as opposed to the reinterpretation of existing knowledge in ever greater but uncertain detail. Scientists and technologists make progress by distinguishing between what they regard as meaningful and what they consider as secondary or unimportant. The meaningful is dynamic; typically, the less important is static. Science and technology have made a major contribution to the culture and to the standard of living of our society. From antiquity to the present day, the most distinguished scientis

SOCIAL SCIENCE CONTRIBUTIONS TO DISCUSSIONS AFFECT THE SCIENCE, TECHNOLOGY AND INNOVATION

Directory of Open Access Journals (Sweden)

Renato Santiago Quintal

2015-04-01

Full Text Available In its origins, the social sciences have focused on technological issues. Social scientists have devoted much attention to the subject affects the action of technological progress on the conformation of human life in General, as well as keeping an eye on more concreteness about the aspects related to the way the technique is acquired, the ways employed to protect her and the tools used to Exchange and protection. In this context, the article aims to identify the contributions of social sciences-notably of the applied social sciences-to discussions involving science, technology and innovation. The survey used the inductive method, applied to the literature review. The findings point to multidisciplinarity of significant thematic affects to science, technology and innovation. Keywords: Scientific knowledge; Social Sciences; Technology and society.

Grid Information Technology as a New Technological Tool for e-Science, Healthcare and Life Science

Directory of Open Access Journals (Sweden)

Juan Manuel Maqueira Marín

2007-06-01

Full Text Available Nowadays, scientific projects require collaborative environments and powerful computing resources capable of handling huge quantities of data, which gives rise to e-Science. These requirements are evident in the need to optimise time and efforts in activities to do with health. When e-Science focuses on the collaborative handling of all the information generated in clinical medicine and health, e-Health is the result. Scientists are taking increasing interest in an emerging technology – Grid Information Technology – that may offer a solution to their current needs. The current work aims to survey how e-Science is using this technology all around the world. We also argue that the technology may provide an ideal solution for the new challenges facing e-Health and Life Science.

2015 Science Mission Directorate Technology Highlights

Science.gov (United States)

Seablom, Michael S.

2016-01-01

The role of the Science Mission Directorate (SMD) is to enable NASA to achieve its science goals in the context of the Nation's science agenda. SMD's strategic decisions regarding future missions and scientific pursuits are guided by Agency goals, input from the science community including the recommendations set forth in the National Research Council (NRC) decadal surveys and a commitment to preserve a balanced program across the major science disciplines. Toward this end, each of the four SMD science divisions -- Heliophysics, Earth Science, Planetary Science, and Astrophysics -- develops fundamental science questions upon which to base future research and mission programs. Often the breakthrough science required to answer these questions requires significant technological innovation, e.g., instruments or platforms with capabilities beyond the current state of the art. SMD's targeted technology investments fill technology gaps, enabling NASA to build the challenging and complex missions that accomplish groundbreaking science.

Vacuum science, technology, and applications

CERN Document Server

Naik, Pramod K

2018-01-01

Vacuum plays an important role in science and technology. The study of interaction of charged particles, neutrals and radiation with each other and with solid surfaces requires a vacuum environment for reliable investigations. Vacuum has contributed immensely to advancements made in nuclear science, space, metallurgy, electrical/electronic technology, chemical engineering, transportation, robotics and many other fields. This book is intended to assist students, scientists, technicians and engineers to understand the basics of vacuum science and technology for application in their projects. The fundamental theories, concepts, devices, applications, and key inventions are discussed.

Connection technology of HPTO type WECs and DC nano grid in island

Science.gov (United States)

Wang, Kun-lin; Tian, Lian-fang; You, Ya-ge; Wang, Xiao-hong; Sheng, Song-wei; Zhang, Ya-qun; Ye, Yin

2016-07-01

Wave energy fluctuating a great deal endangers the security of power grid especially micro grid in island. A DC nano grid supported by batteries is proposed to smooth the output power of wave energy converters (WECs). Thus, renewable energy converters connected to DC grid is a new subject. The characteristics of WECs are very important to the connection technology of HPTO type WECs and DC nano grid. Hydraulic power take-off system (HPTO) is the core unit of the largest category of WECs, with the functions of supplying suitable damping for a WEC to absorb wave energy, and converting captured wave energy to electricity. The HPTO is divided into a hydraulic energy storage system (HESS) and a hydraulic power generation system (HPGS). A primary numerical model for the HPGS is established in this paper. Three important basic characteristics of the HPGS are deduced, which reveal how the generator load determines the HPGS rotation rate. Therefore, the connector of HPTO type WEC and DC nano grid would be an uncontrollable rectifier with high reliability, also would be a controllable power converter with high efficiency, such as interleaved boost converter-IBC. The research shows that it is very flexible to connect to DC nano grid for WECs, but bypass resistance loads are indispensable for the security of WECs.

Fiscal 2000 pioneering research report on the 3D nanotechnology; 2000 nendo 3D nano technology sendo kenkyu hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-03-01

A survey was conducted of the 3D nanotechnology which is a technology that aims to create novel functions and to enhance functions in mechanical engineering through the control of large-area 3-dimensional nano-scale structures. In this fiscal year, trends of research and development and technological tasks were surveyed from the viewpoint of nanomanufacturing technology. Basic processing technologies were surveyed, which included the laser-aided or light-aided micromachining technology, chemomechanical processing technology, and nanoparticle beam-aided processing technology. In the research of mass production technologies, the nanostructure transfer technology superior in capability to the conventional photolithography was taken up. Nanomanipulation technologies were also surveyed, such as atomic/molecular-level observation, assessment, processing, fixation, and the like. Technologies involving machine elements and structures were surveyed, when microactuators and micromechanisms were studied, such as nano-scale functional films. Lastly, a proposition was made about research and development tasks for the future and about how to work on such tasks. (NEDO)

NanoChemistry Group at DTU uses NanoSight's NTA System for Nanoparticle Characterization

DEFF Research Database (Denmark)

2011-01-01

(Nanowerk News) NanoSight, leading manufacturers of unique nanoparticle characterization technology, describes how the Nano Chemistry group at DTU Copenhagen is utilizing nanoparticle tracking analysis, NTA, in its research and teaching programs....

Journal of Applied Science and Technology

African Journals Online (AJOL)

The Journal of Applied Science and Technology (JAST) seeks to promote and ... addressing issues that relate to technological developments in the Tropics. ... Science and Technology (ICMST-Gh) and the Materials Research Society of Ghana ...

Nano structures for Medical Diagnostics Md

International Nuclear Information System (INIS)

Bellah, M.; Iqbal, S.M.; Bellah, M.; Iqbal, S.M.; Christensen, S.M.; Iqbal, S.M.; Iqbal, S.M.

2012-01-01

Nano technology is the art of manipulating materials on atomic or molecular scales especially to build nano scale structures and devices. The field is expanding quickly, and a lot of work is ongoing in the design, characterization, synthesis, and application of materials, structures, devices, and systems by controlling shape and size at nanometer scale. In the last few years, much work has been focused on the use of nano structures toward problems of biology and medicine. In this paper, we focus on the application of various nano structures and nano devices in clinical diagnostics and detection of important biological molecules. The discussion starts by introducing some basic techniques of micro-/nano scale fabrication that have enabled reproducible production of nano structures. The prospects, benefits, and limitations of using these novel techniques in the fields of bio detection and medical diagnostics are then discussed. Finally, the challenges of mass production and acceptance of nano technology by the medical community are considered.

White paper on science and technology, 1999. New development in science and technology policy: responding to national and societal needs

International Nuclear Information System (INIS)

1999-01-01

This white paper presents various considerations on present important issues on Japanese science and technology by focusing on what is demanded of Japan's science and technology policy in responding to these national and social needs. This papers concern policy measures intended to promote science and technology, and has been submitted to the hundred forty-second session of the Diet, pursuant to Article 8 of the Science and Technology Basic Law (Law No. 130), enacted in 1995. Part 1 and Part 2 of this report discuss the trends in a wide range of scientific and technical activities to help understanding the policy measures implemented to promote science and technology, which are then discussed in Part 3. The title of Part 1 is new development in science and technology policy: responding to national and societal needs. In this part, what sort of efforts is needed in the world of today, where science and technology are engines for social and economic revolution was examined in order for science and technology to better meet national and societal needs. In Part 2, current status of science and technology in Japan and other nations in the areas pertaining to science and technology were examined using various data as to the scientific and technical activities in Japan. This information will then be used for a more in-depth analysis of the trends in Japan's research activities. Part 3 provides a summary of the Science and Technology Basic Plan that was determined in July 1996 based on the Science and Technology Basic Law. It continues with a discussion of the policies that were implemented in FY1998 for the promotion of science and technology, in line with this basic plan. (M.N.)

75 FR 10845 - Subcommittee on Forensic Science; Committee on Science; National Science and Technology Council

Science.gov (United States)

2010-03-09

... OFFICE OF SCIENCE AND TECHNOLOGY POLICY Subcommittee on Forensic Science; Committee on Science... participants. SUMMARY: The Subcommittee on Forensic Science of the National Science and Technology Council's... . Kenneth E. Melson, Co-Chair, Subcommittee on Forensic Science. [FR Doc. 2010-4899 Filed 3-8-10; 8:45 am...

78 FR 24241 - Nanoscale Science, Engineering, and Technology Subcommittee; Committee on Technology, National...

Science.gov (United States)

2013-04-24

... OFFICE OF SCIENCE AND TECHNOLOGY POLICY Nanoscale Science, Engineering, and Technology.... SUMMARY: The National Nanotechnology Coordination Office (NNCO), on behalf of the Nanoscale Science, Engineering, and Technology (NSET) Subcommittee of the Committee on Technology, National Science and...

77 FR 61448 - Nanoscale Science, Engineering and Technology Subcommittee Committee on Technology, National...

Science.gov (United States)

2012-10-09

... OFFICE OF SCIENCE AND TECHNOLOGY POLICY Nanoscale Science, Engineering and Technology Subcommittee...: The National Nanotechnology Coordination Office (NNCO), on behalf of the Nanoscale Science, Engineering, and Technology (NSET) Subcommittee of the Committee on Technology, National Science and...

75 FR 4882 - Subcommittee on Forensic Science; Committee on Science; National Science and Technology Council

Science.gov (United States)

2010-01-29

... OFFICE OF SCIENCE AND TECHNOLOGY POLICY Subcommittee on Forensic Science; Committee on Science; National Science and Technology Council ACTION: Notice of Panel Session. Public input is requested concerning appropriate Federal Executive Branch responses to the National Academy of Sciences 2009 report...

Fabrication of a nano-structured PbO2 electrode by using printing technology: surface characterization and application

International Nuclear Information System (INIS)

Kannan, K.; Muthuraman, G.; Cho, G.; Moon, I. S.

2014-01-01

This investigation aimed to introduce printing technology for the first time to prepare a nanostrucutured PbO 2 electrode and its application to a cerium redox transfer process. The new method of nano-size PbO 2 preparation demonstrated that nano-PbO 2 could be obtained in less time and at less cost at room temperature. The prepared nano-PbO 2 screen printed on a Ti electrode by three different compositions under similar conditions showed through surface and electrochemical analyses no adherence on Ti and no contact with other nano-PbO 2 particles. Gravure printing of nano-PbO 2 on a PET (poly ethylene thin) film at high pressure was done with two different compositions for the first time. The selective composition of 57.14 % nano-PbO 2 powder with 4.28 % carbon black and 38.58 % ECA (ethyl carbitol acetate) produced a film with a nanoporous structure with an electron transfer ability. Finally, the optimized gravure-printed nano-PbO 2 electrode was applied to the oxidation of Ce(III) to Ce(IV) by using cyclic voltammetry. The gravure-printed nano-PbO 2 should pave the way to promising applications in electrochemical and sensor fields.

The nano-materials, at the heart of the nano galaxy; Les nano-materiaux, au coeur de la galaxie nano

Energy Technology Data Exchange (ETDEWEB)

Le Marois, G. [Direction Generale de l' Industrie, des Technologies de l' Information et des Postes, 75 - Paris (France); Carlac, D. [Societe Developpement et Conseil, 51 - Reims (France)

2004-02-01

The researches on nano-materials are continuously increasing in most of industrialized countries. Between 1998 and 2003, the corresponding investment has been multiplied by six in Europe, eight in Usa and in Japan, to reach 3 milliards of euros in the world. Based on the nano-technologies development, these materials would represent the main part of the market at short and middle dated. Many examples of utilization are presented. (A.L.B.)

76 FR 6163 - Subcommittee on Forensic Science; Committee on Science; National Science and Technology Council

Science.gov (United States)

2011-02-03

... Branch responses to the AFIS interoperability issues identified in the National Academy of Sciences 2009... OFFICE OF SCIENCE AND TECHNOLOGY POLICY Subcommittee on Forensic Science; Committee on Science; National Science and Technology Council ACTION: Notice of meeting. Public input is requested concerning...

Use of nano filtration membrane technology for ceramic industry wastewater treatment

Energy Technology Data Exchange (ETDEWEB)

Moliner-Salvador, R.; Deratani, A.; Palmeri, J.; Sanchez, E.

2012-07-01

A study has been undertaken of an advanced wastewater treatment approach using polymer nano filtration membranes, in an attempt to obtain water of sufficient quality to allow it to be reused in the same production process or, alternatively, to be discharged without any problems. The study has initially focused on the removal of organic matter (reduction of COD) and the most representative ions present in the wastewater, such as Na{sup +}, Mg{sup 2}+, Cl{sup -}, and SO{sub 4}{sup 2}. In a first part of the study, with a view to optimising the experimental phase, a simulation has been performed of the nano filtration process using the Nano Flux software. Among other things, the simulation allows the most suitable membranes to be selected as a function of the permeate flow rate and desired level of retention in the substances to be removed. The subsequent experimentation was carried out in a laboratory tangential filtration system that works with flat membranes. It was found that retention values of about 90% were obtained for the studied substances, with a good permeate flow rate, using low operating pressures. These results demonstrate the feasibility of the studied technology and its potential as a treatment for improving ceramic industry wastewater quality.

Composite science and technology innovation index

International Nuclear Information System (INIS)

2011-02-01

This book reports the composite science and technology innovation index with the purpose, process, conception and, the method of evaluation. It also indicates the result of composite science and technology innovation index in 2010, which itemizes the result according to resource, activity network, environment and outcome. The last part records analysis of science and technology innovation in Korea and development plan with various analysis.

Soft Computing Techniques in Vision Science

CERN Document Server

Yang, Yeon-Mo

2012-01-01

This Special Edited Volume is a unique approach towards Computational solution for the upcoming field of study called Vision Science. From a scientific firmament Optics, Ophthalmology, and Optical Science has surpassed an Odyssey of optimizing configurations of Optical systems, Surveillance Cameras and other Nano optical devices with the metaphor of Nano Science and Technology. Still these systems are falling short of its computational aspect to achieve the pinnacle of human vision system. In this edited volume much attention has been given to address the coupling issues Computational Science and Vision Studies.  It is a comprehensive collection of research works addressing various related areas of Vision Science like Visual Perception and Visual system, Cognitive Psychology, Neuroscience, Psychophysics and Ophthalmology, linguistic relativity, color vision etc. This issue carries some latest developments in the form of research articles and presentations. The volume is rich of contents with technical tools ...

Nano-scale gene delivery systems; current technology, obstacles, and future directions.

Science.gov (United States)

Garcia-Guerra, Antonio; Dunwell, Thomas L; Trigueros, Sonia

2018-01-07

Within the different applications of nanomedicine currently being developed, nano-gene delivery is appearing as an exciting new technique with the possibility to overcome recognised hurdles and fulfill several biological and medical needs. The central component of all delivery systems is the requirement for the delivery of genetic material into cells, and for them to eventually reside in the nucleus where their desired function will be exposed. However, genetic material does not passively enter cells; thus, a delivery system is necessary. The emerging field of nano-gene delivery exploits the use of new materials and the properties that arise at the nanometre-scale to produce delivery vectors that can effectively deliver genetic material into a variety of different types of cells. The novel physicochemical properties of the new delivery vectors can be used to address the current challenges existing in nucleic acid delivery in vitro and in vivo. While there is a growing interest in nanostructure-based gene delivery, the field is still in its infancy, and there is yet much to discover about nanostructures and their physicochemical properties in a biological context. We carry out an organized and focused search of bibliographic databases. Our results suggest that despite new breakthroughs in nanostructure synthesis and advanced characterization techniques, we still face many barriers in producing highly efficient and non-toxic delivery systems. In this review, we overview the types of systems currently used for clinical and biomedical research applications along with their advantages and disadvantages, as well as discussing barriers that arise from nano-scale interactions with biological material. In conclusion, we hope that by bringing the far reaching multidisciplinary nature of nano-gene delivery to light, new targeted nanotechnology-bases strategies are developed to overcome the major challenges covered in this review. Copyright© Bentham Science Publishers; For

Nanoparticles by spray drying using innovative new technology: the Büchi nano spray dryer B-90.

Science.gov (United States)

Li, Xiang; Anton, Nicolas; Arpagaus, Cordin; Belleteix, Fabrice; Vandamme, Thierry F

2010-10-15

Spray drying technology is widely known and used to transform liquids (solutions, emulsions, suspension, slurries, pastes or even melts) into solid powders. Its main applications are found in the food, chemical and materials industries to enhance ingredient conservation, particle properties, powder handling and storage etc. However, spray drying can also be used for specific applications in the formulation of pharmaceuticals for drug delivery (e.g. particles for pulmonary delivery). Büchi is a reference in the development of spray drying technology, notably for laboratory scale devices. This study presents the Nano Spray Dryer B-90, a revolutionary new sprayer developed by Büchi, use of which can lower the size of the produced dried particles by an order of magnitude attaining submicron sizes. In this paper, results are presented with a panel of five representative polymeric wall materials (arabic gum, whey protein, polyvinyl alcohol, modified starch, and maltodextrin) and the potentials to encapsulate nano-emulsions, or to formulate nano-crystals (e.g. from furosemide) are also shown. Copyright © 2010 Elsevier B.V. All rights reserved.

Metrology at the nano scale

International Nuclear Information System (INIS)

Sheridan, B.; Cumpson, P.; Bailey, M.

2006-01-01

Progress in nano technology relies on ever more accurate measurements of quantities such as distance, force and current industry has long depended on accurate measurement. In the 19th century, for example, the performance of steam engines was seriously limited by inaccurately made components, a situation that was transformed by Henry Maudsley's screw micrometer calliper. And early in the 20th century, the development of telegraphy relied on improved standards of electrical resistance. Before this, each country had its own standards and cross border communication was difficult. The same is true today of nano technology if it is to be fully exploited by industry. Principles of measurement that work well at the macroscopic level often become completely unworkable at the nano metre scale - about 100 nm and below. Imaging, for example, is not possible on this scale using optical microscopes, and it is virtually impossible to weigh a nano metre-scale object with any accuracy. In addition to needing more accurate measurements, nano technology also often requires a greater variety of measurements than conventional technology. For example, standard techniques used to make microchips generally need accurate length measurements, but the manufacture of electronics at the molecular scale requires magnetic, electrical, mechanical and chemical measurements as well. (U.K.)

A Survey on the Development Status of Nano Technology as a Basic and Fundamental Technology of Nuclear Energy

International Nuclear Information System (INIS)

Lee, Byung Chul; Lee, J. Y.; Lee, G. H.

2010-02-01

- It is necessary to research and develop high-grade nuclear energy technology such as raising stability of nuclear power generation, improving economic feasibility and managing radioactive wastes. - Innovation of nano technology is composed of each stage as follows Energy source -> conversion to energy -> distribution of energy -> energy storage -> energy use which are a value added system in the part of energy. - It is necessary to strengthen support of the government to raise next-generation human resources for continuous promotion of nuclear energy, referring to KNOO program promoted by the UK government for raising recognition about nuclear energy, raising core human resources and developing next generation core technology

Nano materials for Renewable Energy Storage: Synthesis, Characterization, and Applications

International Nuclear Information System (INIS)

Rather, S.U.; Zacharia, R.; Stephan, A.M.; Petrov, L.A.; Nair, J.R.

2015-01-01

Nano technology and nano scale materials have been part of human history and in use since centuries. Staining of glass windows hundreds of years ago is one of the examples where people created beautiful works without knowing that they are using nano processing. The beginning of modern era of nano technology dates back to the talk of the Nobel laureate Professor Richard Feynman in There plenty of room at the bottom. Professor Feynman hypothesized that in near future scientists would be able to control and modulate individual molecules and atoms. After a decade, Professor Norio Taniguchi introduced the magical word nano technology. However, in 1981, the introduction of scanning tunnelling microscope enabled the scientists to see the materials in nano scale that propagated the new age of nano technology.

Science technology, way to go? or logic to be broken?

International Nuclear Information System (INIS)

Kim, O Sik

1994-10-01

This book deals with development and prospect of science technology, effectiveness and limitation of science technology method, introduction of oriental reasons toward science technology, practice and management of science technology, and process of assimilation of modern science technology. It also covers historic background of modern science technology, logic and error of science technology, ignorance and science technology, freedom and values and compensation of a systematic study, integrated development of science technology, and point for the future of science technology.

Advanced Information Technology Investments at the NASA Earth Science Technology Office

Science.gov (United States)

Clune, T.; Seablom, M. S.; Moe, K.

2012-12-01

The NASA Earth Science Technology Office (ESTO) regularly makes investments for nurturing advanced concepts in information technology to enable rapid, low-cost acquisition, processing and visualization of Earth science data in support of future NASA missions and climate change research. In 2012, the National Research Council published a mid-term assessment of the 2007 decadal survey for future spacemissions supporting Earth science and applications [1]. The report stated, "Earth sciences have advanced significantly because of existing observational capabilities and the fruit of past investments, along with advances in data and information systems, computer science, and enabling technologies." The report found that NASA had responded favorably and aggressively to the decadal survey and noted the role of the recent ESTO solicitation for information systems technologies that partnered with the NASA Applied Sciences Program to support the transition into operations. NASA's future missions are key stakeholders for the ESTO technology investments. Also driving these investments is the need for the Agency to properly address questions regarding the prediction, adaptation, and eventual mitigation of climate change. The Earth Science Division has championed interdisciplinary research, recognizing that the Earth must be studied as a complete system in order toaddress key science questions [2]. Information technology investments in the low-mid technology readiness level (TRL) range play a key role in meeting these challenges. ESTO's Advanced Information Systems Technology (AIST) program invests in higher risk / higher reward technologies that solve the most challenging problems of the information processing chain. This includes the space segment, where the information pipeline begins, to the end user, where knowledge is ultimatelyadvanced. The objectives of the program are to reduce the risk, cost, size, and development time of Earth Science space-based and ground

Low-Cost, Scalable, Hybrid Launch Propulsion Technology, Phase I

Data.gov (United States)

National Aeronautics and Space Administration — Physical Sciences Inc. (PSI), in collaboration Purdue University, proposes to develop a novel launch propulsion technology for rapid insertion of nano/micro...

Nonlinear super-resolution nano-optics and applications

CERN Document Server

Wei, Jingsong

2015-01-01

This book covers many advances in the subjects of nano-optics and nano photonics. The author describes the principle and technical schematics of common methods for breaking through the optical diffraction limit and focuses on realizing optical super-resolution with nonlinear effects of thin film materials. The applications of nonlinear optical super-resolution effects in nano-data storage, nanolithography, and nano-imaging are also presented. This book is useful to graduate students majoring in optics and nano science and also serves as a reference book for academic researchers, engineers, technical professionals in the fields of super-resolution optics and laser techniques, nano-optics and nano photonics, nano-data storage, nano imaging, micro/nanofabrication and nanolithography and nonlinear optics.

Welcome to Quantum Science and Technology

Science.gov (United States)

Thew, Rob

2016-03-01

Quantum information science and related technologies now involve thousands of researchers worldwide, cutting across physics, chemistry, engineering, bioscience, applied mathematics and computer science, extending from fundamental science to novel applications and industry. This situation defines the scope and mission of Quantum Science and Technology, a new IOP journal serving the interests of this multidisciplinary field by publishing research of the highest quality and impact.

Polymer X-ray refractive nano-lenses fabricated by additive technology.

Science.gov (United States)

Petrov, A K; Bessonov, V O; Abrashitova, K A; Kokareva, N G; Safronov, K R; Barannikov, A A; Ershov, P A; Klimova, N B; Lyatun, I I; Yunkin, V A; Polikarpov, M; Snigireva, I; Fedyanin, A A; Snigirev, A

2017-06-26

The present work demonstrates the potential applicability of additive manufacturing to X-Ray refractive nano-lenses. A compound refractive lens with a radius of 5 µm was produced by the two-photon polymerization induced lithography. It was successfully tested at the X-ray microfocus laboratory source and a focal spot of 5 μm was measured. An amorphous nature of polymer material combined with the potential of additive technologies may result in a significantly enhanced focusing performance compared to the best examples of modern X-ray compound refractive lenses.

77 FR 56681 - Nanoscale Science, Engineering, and Technology Subcommittee; Committee on Technology, National...

Science.gov (United States)

2012-09-13

... OFFICE OF SCIENCE AND TECHNOLOGY POLICY Nanoscale Science, Engineering, and Technology...: Notice of webinar. SUMMARY: The National Nanotechnology Coordination Office (NNCO), on behalf of the Nanoscale Science, Engineering, and Technology (NSET) Subcommittee of the Committee on Technology, National...

African Journals Online: Technology, Computer Science ...

African Journals Online (AJOL)

Items 1 - 29 of 29 ... ... aspects of science, technology, agriculture, health and other related fields. ... International Journal of Engineering, Science and Technology ... Mechanical Engineering, Petroleum Engineering, Physics and other related ...

Project NANO (nanoscience and nanotechnology outreach): a STEM training program that brings SEM's and stereoscopes into high-school and middle-school classrooms

Science.gov (United States)

Cady, Sherry L.; Blok, Mikel; Grosse, Keith; Wells, Jennifer

2014-09-01

The program Project NANO (Nanoscience and Nanotechnology Outreach) enables middle and high school students to discover and research submicroscopic phenomena in a new and exciting way with the use of optical and scanning electron microscopes in the familiar surroundings of their middle or high school classrooms. Project NANO provides secondary level professional development workshops, support for classroom instruction and teacher curriculum development, and the means to deliver Project NANO toolkits (SEM, stereoscope, computer, supplies) to classrooms with Project NANO trained teachers. Evaluation surveys document the impact of the program on student's attitudes toward science and technology and on the learning outcomes for secondary level teachers. Project NANO workshops (offered for professional development credit) enable teachers to gain familiarity using and teaching with the SEM. Teachers also learn to integrate new content knowledge and skills into topic-driven, standards-based units of instruction specifically designed to support the development of students' higher order thinking skills that include problem solving and evidence-based thinking. The Project NANO management team includes a former university science faculty, two high school science teachers, and an educational researcher. To date, over 7500 students have experienced the impact of the Project NANO program, which provides an exciting and effective model for engaging students in the discovery of nanoscale phenomena and concepts in a fun and engaging way.

Fabrication of a nano-structured PbO{sub 2} electrode by using printing technology: surface characterization and application

Energy Technology Data Exchange (ETDEWEB)

Kannan, K.; Muthuraman, G.; Cho, G.; Moon, I. S. [Sunchon National University, Suncheon (Korea, Republic of)

2014-08-15

This investigation aimed to introduce printing technology for the first time to prepare a nanostrucutured PbO{sub 2} electrode and its application to a cerium redox transfer process. The new method of nano-size PbO{sub 2} preparation demonstrated that nano-PbO{sub 2} could be obtained in less time and at less cost at room temperature. The prepared nano-PbO{sub 2} screen printed on a Ti electrode by three different compositions under similar conditions showed through surface and electrochemical analyses no adherence on Ti and no contact with other nano-PbO{sub 2} particles. Gravure printing of nano-PbO{sub 2} on a PET (poly ethylene thin) film at high pressure was done with two different compositions for the first time. The selective composition of 57.14 % nano-PbO{sub 2} powder with 4.28 % carbon black and 38.58 % ECA (ethyl carbitol acetate) produced a film with a nanoporous structure with an electron transfer ability. Finally, the optimized gravure-printed nano-PbO{sub 2} electrode was applied to the oxidation of Ce(III) to Ce(IV) by using cyclic voltammetry. The gravure-printed nano-PbO{sub 2} should pave the way to promising applications in electrochemical and sensor fields.

The metrics of science and technology

CERN Document Server

Geisler, Eliezer

2000-01-01

Dr. Geisler's far-reaching, unique book provides an encyclopedic compilation of the key metrics to measure and evaluate the impact of science and technology on academia, industry, and government. Focusing on such items as economic measures, patents, peer review, and other criteria, and supported by an extensive review of the literature, Dr. Geisler gives a thorough analysis of the strengths and weaknesses inherent in metric design, and in the use of the specific metrics he cites. His book has already received prepublication attention, and will prove especially valuable for academics in technology management, engineering, and science policy; industrial R&D executives and policymakers; government science and technology policymakers; and scientists and managers in government research and technology institutions. Geisler maintains that the application of metrics to evaluate science and technology at all levels illustrates the variety of tools we currently possess. Each metric has its own unique strengths and...

White paper on science and technology, 1995. Fifty years of postwar science and technology in Japan

International Nuclear Information System (INIS)

1995-07-01

This August marks 50 years since the end of World War II. Japan emerged from the ruins to overcome the post-war devastation to achieve a high level of economic growth and become the second largest economy in the world. Science and technology have played major roles as a driving force behind this quest for prosperity. However, it seems as though true prosperity is not necessarily being enjoyed by citizens of Japan today. Japan is becoming an aging society. To realize a truly rich and prosperous society in which people can live comfortably, it is important to further raise the level of science and technology. It is also necessary to ensure this development by revitalizing the economy, and to continue to utilize science and technology as an endless resource to create assets for society as a whole which will be inherited by future generations. With this viewpoint in mind, this White Paper looks back on Japan's scientific and technological development over the last 50 years, and considers the future of science and technology with a view toward realizing the true prosperity for its people. It is our hope that this White Paper will be helpful for considering the scientific and technological activities needed to bring about a Japan whose people are truly prosperous, and we will, as a government, continually increase our efforts toward the promotion of science and technology. (J.P.N.)

Integrating Science and Technology: Using Technological Pedagogical Content Knowledge as a Framework to Study the Practices of Science Teachers

Science.gov (United States)

Pringle, Rose M.; Dawson, Kara; Ritzhaupt, Albert D.

2015-01-01

In this study, we examined how teachers involved in a yearlong technology integration initiative planned to enact technological, pedagogical, and content practices in science lessons. These science teachers, engaged in an initiative to integrate educational technology in inquiry-based science lessons, provided a total of 525 lesson plans for this…

Environmental science and technology

Energy Technology Data Exchange (ETDEWEB)

NONE

2008-07-01

The environmental Science and Technology Program was structured based on the continuous growth of environmental activities on areas related to nuclear programs at IPEN. The program comprehends five main areas: Environmental analysis: Chemical technology; Polymer technology nucleus: Chemical and Isotope characterization and Analytical Chemistry for the Nuclear Fuel Cycle samples.

SUSTAINABILITY LOGISTICS BASING SCIENCE AND TECHNOLOGY OBJECTIVE DEMONSTRATION; SELECTED TECHNOLOGY ASSESSMENT

Science.gov (United States)

2018-03-22

BASING SCIENCE AND TECHNOLOGY OBJECTIVE – DEMONSTRATION; SELECTED TECHNOLOGY ASSESSMENT by Gregg J. Gildea Paul D. Carpenter Benjamin J...Campbell William F. Harris* Michael A. McCluskey** and José A. Miletti*** *General Dynamics Information Technology Fairfax, VA 22030 **Maneuver...SCIENCE AND TECHNOLOGY OBJECTIVE – DEMONSTRATION; SELECTED TECHNOLOGY ASSESSMENT 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT

PREFACE: IUMRS-ICA 2008 Symposium, Sessions 'X. Applications of Synchrotron Radiation and Neutron Beam to Soft Matter Science' and 'Y. Frontier of Polymeric Nano-Soft-Materials - Precision Polymer Synthesis, Self-assembling and Their Functionalization'

Science.gov (United States)

Takahara, Atsushi; Kawahara, Seiichi

2009-09-01

Tashiro (Toyota Technological Institute) Professor Kazuo Sakurai(Kitakyushu University) Professor Keiji Tanaka (Kyushu University) Dr Sono Sasaki (JASRI/Spring-8) Professor Naoya Torikai (KENS) Professor Moonhor Ree (POSTECH) Professor Kookheon Char (Seoul National University) Professor Charles C Han (CAS) Professor Atsushi Takahara(Kyushu University) Frontier of Polymeric Nano-Soft-Materials, Precision Polymer Synthesis, Self-assembling and Their Functionalization (Symposium Y of IUMRS-ICA2008) Seiichi Kawahara, Rong-Ming Ho, Hiroshi Jinnai, Masami Kamigaito, Takashi Miyata, Hiroshi Morita, Hideyuki Otsuka, Daewon Sohn, Keiji Tanaka It is our great pleasure and honor to publish peer-reviewed papers, presented in Symposium Y 'Frontier of Polymeric Nano-Soft-Materials Precision Polymer Synthesis, Self-assembling and Their Functionalization' at the International Union of Materials Research Societies International Conference in Asia 2008 (IUMRS-ICA2008), which was held on 9-13 December 2008, at Nagoya Congress Center, Nagoya, Japan. 'Polymeric nano-soft-materials' are novel outcomes based on a recent innovative evolution in polymer science, i.e. precision polymer synthesis, self-assembling and functionalization of multi-component systems. The materials are expected to exhibit specific functions and unique properties due to their hierarchic morphologies brought either by naturally-generated ordering or by artificial manipulation of the systems, e.g., crystallization and phase-separation. The emerging precision synthesis has brought out new types of polymers with well-controlled primary structures. Furthermore, the surface and interface of the material are recognized to play an important role in the outstanding mechanical, electrical and optical properties, which are required for medical and engineering applications. In order to understand structure-property relationships in the nano-soft-materials, it is indispensable to develop novel characterization techniques. Symposium Y

White paper on science and technology, 1990

International Nuclear Information System (INIS)

1991-01-01

Today, it is apparent that science and technology are major driving force for nation's economic growth. Japan is utilizing its scientific and technological ability to produce superior products. Thus Japan has become an economic giant. The citizenry of Japan are enjoying the benefits of these scientific and technological advances. In recent years, the socioeconomic situation in the country has improved. As a result, the people of Japan want the quality of life in addition to material goods. There are expectations for improving the quality of life, while at the same time, solving such problems as the aging of the society and global environmental concerns. From these perspectives, in this paper, how science and technology have contributed to improve the quality of life and how those have been applied are analyzed. It is hoped that this paper is useful as a basic reference in considering Japanese socioeconomic goals for the 21st century. Furthermore, the government tries to address the problems pointed out in this paper, and promote the advancement of Japanese science and technology. The status of Japanese science and technology, expectations for science and technology and the science and technology policy in foreign countries and Japan are described. (K.I.)

Prediction Surface Morphology of Nanostructure Fabricated by Nano-Oxidation Technology.

Science.gov (United States)

Huang, Jen-Ching; Chang, Ho; Kuo, Chin-Guo; Li, Jeen-Fong; You, Yong-Chin

2015-12-04

Atomic force microscopy (AFM) was used for visualization of a nano-oxidation technique performed on diamond-like carbon (DLC) thin film. Experiments of the nano-oxidation technique of the DLC thin film include those on nano-oxidation points and nano-oxidation lines. The feature sizes of the DLC thin film, including surface morphology, depth, and width, were explored after application of a nano-oxidation technique to the DLC thin film under different process parameters. A databank for process parameters and feature sizes of thin films was then established, and multiple regression analysis (MRA) and a back-propagation neural network (BPN) were used to carry out the algorithm. The algorithmic results are compared with the feature sizes acquired from experiments, thus obtaining a prediction model of the nano-oxidation technique of the DLC thin film. The comparative results show that the prediction accuracy of BPN is superior to that of MRA. When the BPN algorithm is used to predict nano-point machining, the mean absolute percentage errors (MAPE) of depth, left side, and right side are 8.02%, 9.68%, and 7.34%, respectively. When nano-line machining is being predicted, the MAPEs of depth, left side, and right side are 4.96%, 8.09%, and 6.77%, respectively. The obtained data can also be used to predict cross-sectional morphology in the DLC thin film treated with a nano-oxidation process.

Herbal medicine, radical scavenger and metal detoxification: bioinorganic, complexity and nano science perspectives

Science.gov (United States)

Sumitro, Sutiman B.; Alit, Sukmaningsih

2018-03-01

Developing Complexity Science and Nano Biological perspective giving the ideas of interfacing between modern physical and biological sciences for more comprehensive understanding of life. The study of bioinorganic is a trans-disciplinary, and will initiate the way to more comprehensive and better understanding life. We can talk about energy generation, motive forces and energy transfer at the level of macromolecules. We can then develop understanding biological behavior on nano size biological materials and its higher order using modern physics as well as thermodynamic law. This is a necessity to ovoid partial understanding of life that are not match with holism. In animal tissues, the accumulation or overwhelmed production of free radicals can damage cells and are believed to accelerate the progression of cancer, cardiovascular disease, and age-related diseases. Thus a guarded balance of radical species is imperative. Edward Kosower [1] proposed an idea of biradical in an aromatic organic compounds. Each of which having unpaired electrons. The magnetic force of this compound used for making agregation based on their magnetic characters. Bioinorganic low molecular weight complex compounds composing herbal medicine can bind toxic metals. This low molecular weight complex molecules then easily excerted the metals from the body, removing them from their either intracellular or extracellular existences. This bioinorganic chelation potential is now inspiring a new therapeutic strategies.

Cancer Nano medicine

International Nuclear Information System (INIS)

Li, H.; Pike, M.M.; Luo, X.; Liu, L.H.

2013-01-01

Bioengineered nano materials have inspired revolutionary imaging and drug delivery methods whose clinical application in cancer research has resulted in powerful medical devices for early diagnosis, treatment, and prevention of cancer. Recent advances in super imaging agents have resulted in improved resolution and sensitivity. For instance, fluorescent quantum dots with wavelength-tunable emissions, plasmon-resonant gold nano structures with shape-controlled near-infrared absorptions, and MRI-active iron oxide nanoparticles are well-established molecular imaging probes for noninvasive cancer imaging. Nano materials are also considered to be the most effective vectors that can break through transport bio barriers and deliver a constant dose of multiple therapeutic agents to tumors and intracellular endocytic compartments for cancer gene therapy, immunotherapy, or chemotherapy. Furthermore, nano wire- or nano tube-based electronic devices demonstrate extraordinary sensitivity capable of detection at the single molecule or protein level. It is anticipated that developing nano technology-driven imaging, sensing, and therapeutic systems will dramatically advance cancer research and clinical treatments.

The global politics of science and technology

CERN Document Server

Carpes, Mariana; Knoblich, Ruth

2014-01-01

An increasing number of scholars have begun to see science and technology as relevant issues in International Relations (IR), acknowledging the impact of material elements, technical instruments, and scientific practices on international security, statehood, and global governance. This two-volume collection brings the debate about science and technology to the center of International Relations. It shows how integrating science and technology translates into novel analytical frameworks, conceptual approaches and empirical puzzles, and thereby offers a state-of-the-art review of various methodological and theoretical ways in which sciences and technologies matter for the study of international affairs and world politics. The authors not only offer a set of practical examples of research frameworks for experts and students alike, but also propose a conceptual space for interdisciplinary learning in order to improve our understanding of the global politics of science and technology.

Drug delivery interfaces in the 21st century: from science fiction ideas to viable technologies.

Science.gov (United States)

Chertok, Beata; Webber, Matthew J; Succi, Marc D; Langer, Robert

2013-10-07

Early science fiction envisioned the future of drug delivery as targeted micrometer-scale submarines and "cyborg" body parts. Here we describe the progression of the field toward technologies that are now beginning to capture aspects of this early vision. Specifically, we focus on the two most prominent types of systems in drug delivery: the intravascular micro/nano drug carriers for delivery to the site of pathology and drug-loaded implantable devices that facilitate release with the predefined kinetics or in response to a specific cue. We discuss the unmet clinical needs that inspire these designs, the physiological factors that pose difficult challenges for their realization, and viable technologies that promise robust solutions. We also offer a perspective on where drug delivery may be in the next 50 years based on expected advances in material engineering and in the context of future diagnostics.

Selective and lithography-independent fabrication of 20 nm nano-gap electrodes and nano-channels for nanoelectrofluidics applications

International Nuclear Information System (INIS)

Zhang, J Y; Wang, X F; Wang, X D; Fan, Z C; Li, Y; Ji, An; Yang, F H

2010-01-01

A new method has been developed to selectively fabricate nano-gap electrodes and nano-channels by conventional lithography. Based on a sacrificial spacer process, we have successfully obtained sub-100-nm nano-gap electrodes and nano-channels and further reduced the dimensions to 20 nm by shrinking the sacrificial spacer size. Our method shows good selectivity between nano-gap electrodes and nano-channels due to different sacrificial spacer etch conditions. There is no length limit for the nano-gap electrode and the nano-channel. The method reported in this paper also allows for wafer scale fabrication, high throughput, low cost, and good compatibility with modern semiconductor technology.

An electron beam linear scanning mode for industrial limited-angle nano-computed tomography

Science.gov (United States)

Wang, Chengxiang; Zeng, Li; Yu, Wei; Zhang, Lingli; Guo, Yumeng; Gong, Changcheng

2018-01-01

Nano-computed tomography (nano-CT), which utilizes X-rays to research the inner structure of some small objects and has been widely utilized in biomedical research, electronic technology, geology, material sciences, etc., is a high spatial resolution and non-destructive research technique. A traditional nano-CT scanning model with a very high mechanical precision and stability of object manipulator, which is difficult to reach when the scanned object is continuously rotated, is required for high resolution imaging. To reduce the scanning time and attain a stable and high resolution imaging in industrial non-destructive testing, we study an electron beam linear scanning mode of nano-CT system that can avoid mechanical vibration and object movement caused by the continuously rotated object. Furthermore, to further save the scanning time and study how small the scanning range could be considered with acceptable spatial resolution, an alternating iterative algorithm based on ℓ0 minimization is utilized to limited-angle nano-CT reconstruction problem with the electron beam linear scanning mode. The experimental results confirm the feasibility of the electron beam linear scanning mode of nano-CT system.

Science & Technology Review June 2016

Energy Technology Data Exchange (ETDEWEB)

Vogt, Ramona L. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Chinn, Ken B. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Kotta, Paul [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Meissner, Caryn N. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

2016-06-01

At Lawrence Livermore National Laboratory, we focus on science and technology research to ensure our nation’s security. We also apply that expertise to solve other important national problems in energy, bioscience, and the environment. Science & Technology Review is published eight times a year to communicate, to a broad audience, the Laboratory’s scientific and technological accomplishments in fulfilling its primary missions. The publication’s goal is to help readers understand these accomplishments and appreciate their value to the individual citizen, the nation, and the world.

Upscaling of bio-nano-processes selective bioseparation by magnetic particles

CERN Document Server

Keller, Karsten

2014-01-01

Despite ongoing progress in nano- and biomaterial sciences, large scale bioprocessing of nanoparticles remains a great challenge, especially because of the difficulties in removing unwanted elements during processing in food, pharmaceutical and feed industry at production level. This book presents magnetic nanoparticles and a novel technology for the upscaling of protein separation. The results come from the EU Project "MagPro2Life", which was conducted in cooperation of several european institutions and companies.

Discussion meet on role of electrochemistry in biosensors, nano-materials, fuel cells and ionic liquids

International Nuclear Information System (INIS)

Aggarwal, S.K.; Gopinath, N.; Sharma, M.K.

2006-09-01

Electrochemistry is a challenging as well as fascinating branch of chemistry, which is finding applications in almost all areas of science and technology. This present discussion covers invited talks and contributed papers on electrochemical biomimetic sensing, electrochemical immuno sensing, electrochemistry of nano-particles and electrowinning. Papers relevant to INIS are indexed separately

When Technology, Science and Culture Meet: Insights from Ancient Chinese Technology

Science.gov (United States)

Lee, Yeung Chung

2018-01-01

This paper draws together two important agendas in science education. The first is making science education more inclusive such that students from non-Western or indigenous cultures can benefit from culturally relevant curricula. The second is integrating technology into the curriculum under the umbrella of Science-Technology-Society (STS)…

Nano Era of Dentistry-An Update.

Science.gov (United States)

Maman, Paramjot; Nagpal, Manju; Gilhotra, Ritu Mehra; Aggarwal, Geeta

2018-02-14

Management of the health of oral tissues is a prime requirement in dentistry. The prevention of tooth decay and the treatment of lesions and cavities are ongoing challenges. The limitations in dental materials, medications, instruments, procedures put off the accomplishment of this goal. Rationalization of science and technology has made possible to work out these limitations. Nanotechnology which is the outcome of this rationalization has become one of the most favored technologies in medical and dental application. The substantial contribution of nano dental materials is the identification of oral health related problems by better diagnosis and management of dental disorders by bionanomaterials. Application of nanodentistry holds promise for comprehensive dental care by utilizing nanomaterials and ultimately by nanorobots. This review discusses the rationale of nanodentistry, nanocarriers researched in treatment of different dental diseases, the latest innovations in nanomaterials in various disciplines of dentistry; patent literature and related marketed products. Advances in nanotechnology have placed plenty of hopes in terms of improving the oral health care of dental patients. Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.org.

77 FR 13159 - Nanoscale Science, Engineering, and Technology Subcommittee of the Committee on Technology...

Science.gov (United States)

2012-03-05

... OFFICE OF SCIENCE AND TECHNOLOGY POLICY Nanoscale Science, Engineering, and Technology... public meeting. SUMMARY: The National Nanotechnology Coordination Office (NNCO), on behalf of the Nanoscale Science, Engineering, and Technology (NSET) Subcommittee of the Committee on Technology, National...

Science & Technology Review July/August 2016

Energy Technology Data Exchange (ETDEWEB)

Vogt, Ramona L. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Meissner, Caryn N. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Chinn, Ken B. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

2016-07-18

At Lawrence Livermore National Laboratory, we focus on science and technology research to ensure our nation’s security. We also apply that expertise to solve other important national problems in energy, bioscience, and the environment. Science & Technology Review is published eight times a year to communicate, to a broad audience, the Laboratory’s scientific and technological accomplishments in fulfilling its primary missions. The publication’s goal is to help readers understand these accomplishments and appreciate their value to the individual citizen, the nation, and the world. In this issue for the months of July and August 2016, there are two features: one on Science and Technology in Support of Nuclear Nonproliferation, and another on Seeking Out Hidden Radioactive Materials. Then there are highlights are three research projects--on optics, plasma science, and the nature of neutrinos--along with a news section and patents and awards.

Science & Technology Review July/August 2016

International Nuclear Information System (INIS)

Vogt, Ramona L.; Meissner, Caryn N.; Chinn, Ken B.

2016-01-01

At Lawrence Livermore National Laboratory, we focus on science and technology research to ensure our nation's security. We also apply that expertise to solve other important national problems in energy, bioscience, and the environment. Science & Technology Review is published eight times a year to communicate, to a broad audience, the Laboratory's scientific and technological accomplishments in fulfilling its primary missions. The publication's goal is to help readers understand these accomplishments and appreciate their value to the individual citizen, the nation, and the world. In this issue for the months of July and August 2016, there are two features: one on Science and Technology in Support of Nuclear Nonproliferation, and another on Seeking Out Hidden Radioactive Materials. Then there are highlights are three research projects--on optics, plasma science, and the nature of neutrinos--along with a news section and patents and awards.

Micro- and Nano-fibers by Electrospinning Technology: Processing, Properties, and Applications

DEFF Research Database (Denmark)

Chronakis, Ioannis S.

2015-01-01

Micro- and nano-structures such as micro- and nano-fibers and micro- and nano-particles based on polymers (synthetic and natural) can be processed by electrospinning. Electrospun micro- and nano-structures are an exciting class of novel materials due to several unique characteristics, including...

Nano catalysis: Academic Discipline and Industrial Realities

International Nuclear Information System (INIS)

Olveira, S.; Forster, S.P.; Seeger, S.

2014-01-01

Nano technology plays a central role in both academic research and industrial applications. Nano enabled products are not only found in consumer markets, but also importantly in business to business markets (B2B). One of the oldest application areas of nano technology is nano catalysis—an excellent example for such a B2 B market. Several existing reviews illustrate the scientific developments in the field of nano catalysis. The goal of the present review is to provide an up-to-date picture of academic research and to extend this picture by an industrial and economic perspective. We therefore conducted an extensive search on several scientific databases and we further analyzed more than 1,500 nano catalysis-related patents and numerous market studies. We found that scientists today are able to prepare nano catalysts with superior characteristics regarding activity, selectivity, durability, and recoverability, which will contribute to solve current environmental, social, and industrial problems. In industry, the potential of nano catalysis is recognized, clearly reflected by the increasing number of nano catalysis-related patents and products on the market. The current nano catalysis research in academic and industrial laboratories will therefore enable a wealth of future applications in the industry

Editorial Nano structures for Medicine and Pharmaceuticals

International Nuclear Information System (INIS)

Xing-Jie, L.; Kumar, A.; Donglu, S.; Daxiang, C.

2012-01-01

The rapid developments in nano structured materials and nano technology will have profound impact in many areas of biomedical applications including delivery of drugs and biomolecules, tissue engineering, detection of bio markers, cancer diagnosis, cancer therapy, and imaging. This field is expanding quickly, and a lot of work is ongoing in the design, characterization, synthesis, and application of materials, for controlling shape and size at nanometer scale to develop highly advanced materials for biomedical application and even to design better pharmaceutical products. In recent years, novel nano structure with multi functionalities has been focused on the use of nano structures toward solving problems of biology and medicine. The main scope of this special issue is to demonstrate the latest achievement of nano technology and its application in nano medicine particularly in new approaches for drug delivery such as targeted drug delivery system, nano structure for drug storage, nano materials for tissue engineering, medical diagnosis and treatment, and generation of new kinds of materials from biological sources. Therefore, many critical issues in nano structured materials, particularly their applications in biomedicine, must be addressed before clinical applications. This special issue devotes several review and research articles encompassing various aspects of nano materials for medicine and pharmaceuticals.

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.

SCIENCE AND TECHNOLOGY PARKS

Directory of Open Access Journals (Sweden)

Miroslav Milutinović

2014-04-01

Full Text Available The establishment of science and technology parks is necessarily accompanied by the establishment of a base of professional staff as the foundation of the park and the base of the potential management that will manage the park and the professional staff. Science and Technology Park is a broader term used to describe a variety of attempts directed at enhancing the entrepreneurship development by means of establishing knowledge – based, small and medium-sized enterprises. The enterprise at the top of the technology pyramid receives support in the form of capital, administration, space and access to new information technologies. The overall objective of the development of industrial enterprises in the technology park is the introduction of economically profitable production with the efficient usage of nonrenewable resources and the application of the highest environmental standards. Achieving the primary developmental objective of the Technology Park includes: creating a favorable business atmosphere in the local community, attractive to both foreign and domestic investors – providing support to the establishment of small and medium-sized enterprises using different models of joint ventures and direct foreign investment.

ANSTO: Australian Nuclear Science and Technology Organization

International Nuclear Information System (INIS)

1989-01-01

The Australian Nuclear Science and Technology Organization conducts or is engaged in collaborative research and development in the application of nuclear science and associated technology. Through its Australian radio-isotopes unit, it markets radioisotopes, their products and other services for nuclear medicine industry and research. It also operates national nuclear facilities ( HIFAR and Moata research reactors), promote training, provide advice and disseminates information on nuclear science and technology. The booklet briefly outlines these activities. ills

Journal of Science and Technology (Zambia)

African Journals Online (AJOL)

The University of Zambia Journal of Science and Technology provides an outlet for research findings and reviews in areas of science and technology found to be relevant for national and international development. The bi-annual journal is intended, in its publications, to stimulate new research and foster practical ...

Laser nano-manufacturing: state of the art and challenges

NARCIS (Netherlands)

Li, L.; Hong, M.; Schmidt, M.; Zhong, M.; Mashe, A.; Huis in 't veld, A.J.; Kovalenko, V.

2011-01-01

This paper provides an overview of advances in laser based nano-manufacturing technologies including surface nano-structure manufacturing, production of nano materials (nanoparticles, nanotubes and nanowires) and 3D nano-structures manufacture through multiple layer additive techniques and

From Nano Structure to Systems: Fabrication and Characterization

International Nuclear Information System (INIS)

Uda Hashim

2011-01-01

Currently, the interest in nano technology research has been grown rapidly. With the latest technology, it is possible to arrange atoms into structures that are only a few nanometers in size. Dimension for nano structure is between 0.1 and 100nm where the actual size of 1nm is equal to 10-9 m or just about a few atoms thick. In other word, a nano structure is an object which it size is about four atom diameters or 1/50000 of a human hair. Due to the connecting of a patterned silicon substrate with biomolecules and the small size and large surface-to-volume ratio, it opens much new possibility for assembling nano structures.The ultimate goal is to fabricate devices that have every atom in the right place. Such technology would give the opportunity to minimize the size of a device and to reduce the material, energy and time necessary to perform its task. Potential applications include electrical circuits, mechanical devices and medical instruments. There are two most important nano structures that are extensively studied and researched in various organizations which are nano wire and nano gap. Nano wires is a new class of nano structure that have attracted attention and great research interest in the last few years because of their potential applications in nano technology such as nano electronic, nano mechanical and biomedical engineering. Fabrication of Nano wires is one of the great challenges today. Conventional lithography methods are not capable to produce Nano wires and even with advance nano lithography sizes below 100 nm may not easily be achieved. Nano wire can be produced in two approaches, which are top down and bottom-up method. Very small nano wires which can be produced by using top-down nano fabrication methods are Scanning Electron Microscope (SEM) based Electron Beam Lithography (EBL) method, and Spacer Patterning Lithography (SPL) method. The top-down nano fabrication method based on EBL was the design of the Nano wires Pattern Design (NPD). The

Is Computer Science Compatible with Technological Literacy?

Science.gov (United States)

Buckler, Chris; Koperski, Kevin; Loveland, Thomas R.

2018-01-01

Although technology education evolved over time, and pressure increased to infuse more engineering principles and increase links to STEM (science technology, engineering, and mathematics) initiatives, there has never been an official alignment between technology and engineering education and computer science. There is movement at the federal level…

Diaryl fluorene-Based Shape-Persistent Organic Nano molecular Frameworks via Iterative Friedel-Crafts Protocol toward Multicomponent Organic Semiconductors

International Nuclear Information System (INIS)

Zhang, G.W.; Wang, L.; Xie, L.H.; Hou, X.Y.; Liu, Z.D.; Huang, W.; Huang, W.

2013-01-01

We describe bottom-up fluorenol approach to create soluble covalent organic nano molecular architectures (ONAs) as potential multicomponent organic semiconductors (MOSs). BPyFBFFA as a typical model of ONAs and MOSs exhibits a persistent chair-shaped geometric structure that consists of hole-transporting tri phenylamine (TPA), high-efficiency ter fluorene, and high-mobility pyrenes. BPyFBFFA was synthesized via the intermediates PyFA and BPyFA with iterative Friedel-Crafts reactions and Suzuki cross-coupling reactions. BPyFBFFA behaves as an efficient blue light-emitter without the low-energy green emission band. Complex diaryl fluorenes (CDAFs) are promising candidates for nano scale covalent organic frameworks and MOSs. Friedel-Crafts protocols offer versatile toolboxes for molecular architects to frame chemistry and materials, nano science, and molecular nano technology as well as molecular manufactures

Using design science in educational technology research projects

Directory of Open Access Journals (Sweden)

Susan M. Chard

2017-12-01

Full Text Available Design science is a research paradigm where the development and evaluation of a technology artefact is a key contribution. Design science is used in many domains and this paper draws on those domains to formulate a generic structure for design science research suitable for educational technology research projects. The paper includes guidelines for writing proposals using the design science research methodology for educational technology research and presents a generic research report structure. The paper presents ethical issues to consider in design science research being conducted in educational settings and contributes guidelines for assessment when the research contribution involves the creation of a technology artefact.

White paper on science and technology, 1991

International Nuclear Information System (INIS)

1992-01-01

Today, the discussions indicate that the framework for science and technology is changing qualitatively. The rapid globalization of Japanese economic, scientific and technological activities has revealed that the earth is truly limited. This limitation is becoming more apparent in many areas such as resources, energy and markets, and recognizing this limitation, it is required to find a way of life that enables to harmonize the activities with the environment for the future. The theme of the White Paper on Science and Technology in this year is 'Globalization of scientific and technological activities and issues Japan is encountering'. It recognizes that Japan will play significant roles internationally in science and technology from now on. The White Paper consists of three parts. Part 1 deals with the aforementioned concept. In Part 2, scientific and technological activities are compared internationally, and the status of the activities in Japan is examined. In Part 3, the measures which have been developed in accordance with the 'General guideline for science and technology policy', the fundamental policy statement of the Japanese Government, are described. (K.I.)

Zimbabwe Journal of Technological Sciences: Submissions

African Journals Online (AJOL)

The editorial policy of the Zimbabwe Journal Technological Sciences is to review and publish high ... attrition and retention in technological institutions and research issues and concerns in technology. ... Chinhoyi University of Technology

Application of cluster computing in materials science

International Nuclear Information System (INIS)

Kuzmin, A.

2006-01-01

Solution of many problems in materials science requires that high performance computing (HPC) be used. Therefore, a cluster computer, Latvian Super-cluster (LASC), was constructed at the Institute of Solid State Physics of the University of Latvia in 2002. The LASC is used for advanced research in the fields of quantum chemistry, solid state physics and nano materials. In this work we overview currently available computational technologies and exemplify their application by interpretation of x-ray absorption spectra for nano-sized ZnO. (author)

Graphite in Science and Nuclear Technology

OpenAIRE

Zhmurikov, Evgenij

2015-01-01

This review is devoted to the application of graphite and graphite composites in the science and technology. Structure and electrical properties, technological aspects of producing of high-strength artificial graphite and dynamics of its destruction are considered. These type of graphite are traditionally used in the nuclear industry, so author concentrates on actual problems of application and testing of graphite materials in modern science and technology. Translated from chapters 1 of monog...

Science Fiction at the Far Side of Technology

DEFF Research Database (Denmark)

Johansen, Mikkel Willum

2017-01-01

This book explores what science fiction can tell us about the human condition in a technological world (with the dilemma's and consequences that this entails) and also engages with the genre at points where we apparently find it on the far side of science, technology or human existence. As such....... It is our hope that this interdisciplinary approach will set an example for those who, like us, have been busy assessing the ways in which fictional attempts to fathom the possibilities of science and technology speak to central concerns about what it means to be human in a contemporary world of technology....... Although a scholarly work, this book is also designed to be accessible to a general audience that has an interest in science fiction as well as a broader academic audience. Aspiring (or experienced) science fiction writers may be interested in reading critical assessments of the science and technology...

Archives: African Journal of Science and Technology

African Journals Online (AJOL)

Items 1 - 15 of 15 ... Archives: African Journal of Science and Technology. Journal Home > Archives: African Journal of Science and Technology. Log in or Register to get access to full text downloads.

Archives: Journal of Science and Technology (Ghana)

African Journals Online (AJOL)

Items 1 - 38 of 38 ... Archives: Journal of Science and Technology (Ghana). Journal Home > Archives: Journal of Science and Technology (Ghana). Log in or Register to get access to full text downloads.

R&D in micro-nano-bio systems and contribution to pHealth.

Science.gov (United States)

Lymberis, Andreas

2012-01-01

The capacity to research, develop and manufacture systems that employ components based on nano- and microstructures with biological functionality, and are capable to share, ubiquitously, information is at the forefront of worldwide competition. A new generation of advanced materials, processes and emerging technologies is building up enabling highly integrated, miniaturized and smart micro-nano-bio-systems to be engineered. These fast technology developments are also stimulating the explosive growth in life sciences, which is leading to an ever increasing understanding of life at the sub-cellular and molecular level. By bringing these parallel developments to biomedicine and health, ultrafast and sensitive systems can be developed to prevent illness, to support lifestyle, to make early diagnosis or treat diseases with high accuracy and less invasiveness, and to support body functions or to replace lost functionality. Such systems will enable the delivery of individualized health services with better access and outcomes at lower costs than previously deemed possible, making a substantial contribution to bringing healthcare expenditures under control and increase its productivity. The MNBS (Micro-Nano-Bio Systems) group of EU funded projects aims at speeding up the convergence of micro- and nanotechnology with the life sciences and accelerating the development of highly integrated diagnostic, monitoring and therapeutics devices. This paper presents R&D activities supported through the MNBS group that are relevant to pHealth and discusses directions to be taken in order to overcome the current problems. Finally, it addresses future challenges to build highly integrated and reliable systems including innovation and usability issues.

International Journal of Engineering, Science and Technology ...

African Journals Online (AJOL)

International Journal of Engineering, Science and Technology: About this journal. Journal Home > International Journal of Engineering, Science and Technology: About this journal. Log in or Register to get access to full text downloads.

Some relevant questions in science education from the perspective Science- Technology-Society

Directory of Open Access Journals (Sweden)

Prieto, Teresa;

2012-01-01

Full Text Available In this article, some of the answers given at this time to three classic questions related to science teaching: why teach science?, what kind of science to teach?, and how to teach it?, are analyzed from a Science-Technology- Society perspective (STS. It argues for the need to prepare future citizens to make responsible decisions on matters related to science and technology in the XXI century, and the convenience of using socio-scientific issues in the science classroom. Finally, the analysis is exemplified in two cases: food consumption and energy consumption.

Zimbabwe Journal of Technological Sciences

African Journals Online (AJOL)

The Zimbabwe Journal of Technological Sciences receives and publishes articles that address issues in Technology as a developmental field in Africa. The aim is to develop new technological knowledge that is geared to enhance the lives of the African people through solving pertinent problems that affect them.

Nano sized Particles of Silica and Its Derivatives for Applications in Various Branches of Food and Nutrition Sectors

International Nuclear Information System (INIS)

Kasaai, M. R.

2015-01-01

Nano sized particles of silica and its derivatives have been identified as versatile for a broad range of science, technology, and engineering applications. In this paper, an effort has been made to provide a short review from the available literature information on their applications in various branches of food and nutrition sectors. The information provided in this paper describes various parameters affecting their performances and efficiencies. The properties and applications of nano silica and its derivatives have been compared with micro silica and bulk-silica for their performances. The use of nano sized particles of silica and its derivatives provides a number of advantages. Their efficiencies and performances are significantly higher than those of the traditional ones

International Journal of Engineering, Science and Technology ...

African Journals Online (AJOL)

International Journal of Engineering, Science and Technology: Journal Sponsorship. Journal Home > About the Journal > International Journal of Engineering, Science and Technology: Journal Sponsorship. Log in or Register to get access to full text downloads.

Increasing Possibilities of Nano suspension

International Nuclear Information System (INIS)

Sutradhar, K.B.; Khatun, S.; Luna, I.P.

2013-01-01

Nowadays, a very large proportion of new drug candidates emerging from drug discovery programmes are water insoluble and thus poorly bioavailable. To avoid this problem, nano technology for drug delivery has gained much interest as a way to improve the solubility problems. Nano refers to particles size range of 1-1000 nm. The reduction of drug particles into the submicron range leads to a significant increase in the dissolution rate and therefore enhances bioavailability. Nanosuspensions are part of nano technology. This interacts with the body at subcellular (i.e., molecular) scales with a high degree of specificity and can be potentially translated into targeted cellular and tissue-specific clinical applications designed to achieve maximal therapeutic efficacy with minimal side effects. Production of drugs as nanosuspensions can be developed for drug delivery systems as an oral formulation and no noral administration. Here, this review describes the methods of pharmaceutical nano suspension production including advantages and disadvantages, potential benefits, characterization tests, and pharmaceutical applications in drug delivery

Spanish Secondary-School Science Teachers' Beliefs about Science-Technology-Society (STS) Issues

Science.gov (United States)

Vazquez-Alonso, Angel; Garcia-Carmona, Antonio; Manassero-Mas, Maria Antonia; Bennassar-Roig, Antoni

2013-01-01

This study analyzes the beliefs about science-technology-society, and other Nature of Science (NOS) themes, of a large sample (613) of Spanish pre- and in-service secondary education teachers through their responses to 30 items of the Questionnaire of Opinions on Science, Technology and Society. The data were processed by means of a multiple…

Science and Technology of Ceramics

Indian Academy of Sciences (India)

Home; Journals; Resonance – Journal of Science Education; Volume 5; Issue 2. Science and Technology of Ceramics - Advanced Ceramics: Structural Ceramics and Glasses. Sheela K Ramasesha. Series Article Volume 5 Issue 2 February 2000 pp 4-11 ...

Teacher beliefs about teaching science through Science-Technology-Society (STS)

Science.gov (United States)

Massenzio, Lynn

2001-07-01

Statement of the problem. As future citizens, students will have the enormous responsibility of making decisions that will require an understanding of the interaction of science and technology and its interface with society. Since many societal issues today are grounded in science and technology, learning science in its social context is vital to science education reform. Science-Technology-Society (STS) has been strongly identified with meeting this goal, but despite its benefits, putting theory into practice has been difficult. Research design and methodology. The purpose of this study was to explore teacher beliefs about teaching science through STS. The following broad research questions guided the study: (1) What are the participants' initial beliefs about teaching science through STS? (2) What beliefs emerge as participants reflect upon and share their STS instructional experiences with their peers? A social constructivist theoretical framework was developed to plan interactions and collect data. Within this framework, a qualitative methodology was used to interpret the data and answer the research questions. Three provisionally certified science teachers engaged in a series of qualitative tasks including a written essay, verbal STS unit explanation, reflective journal writings, and focus group interviews. After implementing their STS unit, the participants engaged in meaningful dialogue with their peers as they reflected upon, shared, and constructed their beliefs. Conclusions. The participants strongly believed in STS as a means for achieving scientific and technological literacy, developing cognition, enhancing scientific habits of mind and affective qualities, and fostering citizen responsibility. Four major assertions were drawn: (a) Participants' initial belief in teaching for citizen responsibility did not fully align with practice, (b) Educators at the administrative level should be made aware of the benefits of teaching science through STS, (c

Careers in science and technology

Energy Technology Data Exchange (ETDEWEB)

1993-09-01

The objective of this book is to expose junior and senior high school students to the science and technology fields. It also will convey the importance of getting a general education in science and mathematics while still in high school and of continuing such studies in college. This is intended to encourge students, particularly underrepresented minorities and women, to consider and prepare for careers in science and technology. This book attempts to point out the increasing importance of such knowledge in daily life regardless of occupational choice. This book is intended to be used by junior and senior high school students, as a classroom reference by teachers, and by scientist and engineers participating in outreach activities.

Preparation, Morphology Transformation and Magnetic Behavior of Co3O4 Nano-Leaves

International Nuclear Information System (INIS)

Meng Ling-Rong; Zhou He-Ping; Peng Qing; Chen Wei-Meng; Chen Chin-Ping

2010-01-01

A series of cubic phase Co 3 O 4 nano-leaves were prepared via a combined approach of solution reaction and calcination. According to x-ray diffraction and electron microscopy, we find that the Co 3 O 4 grain size increases with calcination temperature. This can induce many gaps in the products. M-T and M-H magnetization measurements reveal the typical antiferromagnetic behavior of nano-leaves. The effective moments of the samples prepared at 300, 400 and 500°C are 5.6, 5.8 and 5.7μ B per formula unit (FU), respectively, larger than the bulk value of 4.14μ B /FU. (cross-disciplinary physics and related areas of science and technology)

Report of International NanoSPD Steering Committee and statistics on recent NanoSPD activities

International Nuclear Information System (INIS)

Valiev, R Z; Langdon, T G

2014-01-01

Abstract. The Université de Lorraine in Metz, France, is the selected site for the 6th International Conference on Nanomaterials by Severe Plastic Deformation (NanoSPD6) following a series of five earlier conferences. This introductory paper reports on several major developments in NanoSPD activities as well as on very recent NanoSPD citation data which confirm the continued growth and expansion of this important research area. Close attention is given to the topics of workshops, conferences and seminars organized during these last three years as well as on books and reviews published prior to the NanoSPD6 conference. A special concern of the committee is in introducing and discussing the appropriate terminology to be applied in this new field of materials science and engineering

Politicizing science: conceptions of politics in science and technology studies.

Science.gov (United States)

Brown, Mark B

2015-02-01

This essay examines five ideal-typical conceptions of politics in science and technology studies. Rather than evaluating these conceptions with reference to a single standard, the essay shows how different conceptions of politics serve distinct purposes: normative critique, two approaches to empirical description, and two views of democracy. I discuss each conception of politics with respect to how well it fulfills its apparent primary purpose, as well as its implications for the purpose of studying a key issue in contemporary democratic societies: the politicization of science. In this respect, the essay goes beyond classifying different conceptions of politics and also recommends the fifth conception as especially conducive to understanding and shaping the processes whereby science becomes a site or object of political activity. The essay also employs several analytical distinctions to help clarify the differences among conceptions of politics: between science as 'political' (adjective) and science as a site of 'politics' (noun), between spatial-conceptions and activity-conceptions of politics, between latent conflicts and actual conflicts, and between politics and power. The essay also makes the methodological argument that the politics of science and technology is best studied with concepts and methods that facilitate dialogue between actors and analysts. The main goal, however, is not to defend a particular view of politics, but to promote conversation on the conceptions of politics that animate research in social studies of science and technology.

Science-Technology-Society (STS): A New Paradigm in Science Education

Science.gov (United States)

Mansour, Nasser

2009-01-01

Changes in the past two decades of goals for science education in schools have induced new orientations in science education worldwide. One of the emerging complementary approaches was the science-technology-society (STS) movement. STS has been called the current megatrend in science education. Others have called it a paradigm shift for the field…

New practices in science communication: Roles of professionals in science and technology development

NARCIS (Netherlands)

Wehrmann, Caroline; Dijkstra, Anne M.

2014-01-01

Currently, Science Communication (SC) professionals who are working in the context of science and technology development, have various jobs at universities, government agencies, NGOs and industry. Their positions have changed in recent years, due to developments in science and technology and to

Nano medicine in Action: An Overview of Cancer Nano medicine on the Market and in Clinical Trials

International Nuclear Information System (INIS)

Wang, R.; Billone, P.S.; Mullett, W.M.

2013-01-01

Nano medicine, defined as the application of nano technology in the medical field, has the potential to significantly change the course of diagnostics and treatment of life-threatening diseases, such as cancer. In comparison with traditional cancer diagnostics and therapy, cancer nano medicine provides sensitive cancer detection and/or enhances treatment efficacy with significantly minimized adverse effects associated with standard therapeutics. Cancer nano medicine has been increasingly applied in areas including nano drug delivery systems, nano pharmaceuticals, and nano analytical contrast reagents in laboratory and animal model research. In recent years, the successful introduction of several novel nano medicine products into clinical trials and even onto the commercial market has shown successful outcomes of fundamental research into clinics. This paper is intended to examine several nano medicines for cancer therapeutics and/or diagnostics-related applications, to analyze the trend of nano medicine development, future opportunities, and challenges of this fast-growing area.

Communicating in English for Science and Technology

DEFF Research Database (Denmark)

Mousten, Birthe

Communicating in English for Science and Technology covers some of the most important questions in connection with communication models, stylistics and genre conventions within the area of English used in science and technology texts. Moreover,knowledge management, terminology management...

Micro-Mini and Nano-Dosimetry and Innovative Technologies in Radiation Therapy (MMND and ITRO2016)

International Nuclear Information System (INIS)

2017-01-01

The biennial MMND (formerly MMD) - IPCT workshops, founded in collaboration with Memorial Sloan Kettering Cancer Center (MSKCC) in 2001, has become an important international multidisciplinary forum for the discussion of advanced dosimetric technology for radiation therapy quality assurance (QA) and space science, as well as advanced technologies for prostate cancer treatment. In more recent years, the interests of participants and the scope of the workshops have extended far beyond prostate cancer treatment alone to include all aspects of radiation therapy, radiation science and technology. We therefore decided to change the name in 2016 to Innovative Technologies in Radiation Oncology (ITRO). MMND ITRO 2016 was held on 26-31 January, 2016 at the beautiful Wrest Point Hotel in Hobart, Tasmania and attracted an outstanding international faculty and nearly 200 delegates from 18 countries (http://mmnditro2016.com/) The MMND 2016 program continued to cover advanced medical physics aspects of IMRT, IGRT, VMAT, SBRT, MRI LINAC, innovative brachytherapy, and synchrotron MRT. The demand for sophisticated real time and high temporal and spatial resolution (down to the submillimetre scale) dosimetry methods and instrumentation for end–to-end QA for these radiotherapy technologies is increasing. Special attention was paid to the contribution of advanced imaging and the application of nanoscience to the recent improvements in imaging and radiotherapy. The last decade has seen great progress in charged particle therapy technology which has spread throughout the world and attracted strong current interest in Australia. This demands a better understanding of the fundamental aspects of ion interactions with biological tissue and the relative biological effectiveness (RBE) of protons and heavy ions. The further development of computational and experimental micro-and nano-dosimetry for ions has important application in radiobiology based treatment planning and space radiation

New Technologies of Information and Communications from a Science, Technology and Society.

Directory of Open Access Journals (Sweden)

Manuel Martín Rodríguez

2012-03-01

Full Text Available With this work we want to make a short analysis of the New Technologies of Information and Communications in basic aspects of interest to technology education, refered to it from a Science Technology and Society (CTS. Based on different conceptions of technology and technological literacy, considers issues such as beliefs about the nature of technological knowledge, relationships and differences between scientific knowledge and the interactions between technology and society, the interests and attitudes of teachers and students to technology and learning from the perspective of education and, finally, various approaches to technology education programs following the approaches Science, Technology and Society.

Earth Science Enterprise Technology Strategy

Science.gov (United States)

1999-01-01

NASA's Earth Science Enterprise (ESE) is dedicated to understanding the total Earth system and the effects of natural and human-induced changes on the global environment. The goals of ESE are: (1) Expand scientific knowledge of the Earth system using NASA's unique vantage points of space, aircraft, and in situ platforms; (2) Disseminate information about the Earth system; and (3) Enable the productive use of ESE science and technology in the public and private sectors. ESE has embraced the NASA Administrator's better, faster, cheaper paradigm for Earth observing missions. We are committed to launch the next generation of Earth Observing System (EOS) missions at a substantially lower cost than the EOS first series. Strategic investment in advanced instrument, spacecraft, and information system technologies is essential to accomplishing ESE's research goals in the coming decades. Advanced technology will play a major role in shaping the ESE fundamental and applied research program of the future. ESE has established an Earth science technology development program with the following objectives: (1) To accomplish ESE space-based and land-based program elements effectively and efficiently; and (2) To enable ESE's fundamental and applied research programs goals as stated in the NASA Strategic Plan.

Environmental science and technology

Energy Technology Data Exchange (ETDEWEB)

Manahan, S.E. [Univ. of Missouri, Columbia, MO (United States)

1998-12-31

This complete survey of modern environmental science covers the four traditional spheres of the environment: water, air, earth, and life, and introduces a fifth sphere -- the anthrosphere -- which the author defines as the sphere of human activities, especially technology, that affect the earth. The book discusses how technology can be used in a manner that minimizes environmental disruption.

The law for the establishment of Science and Technology Agency

International Nuclear Information System (INIS)

1985-01-01

The law provides for the scope of the administrative activities and the powers and authority of the Science and Technology Agency. This law also assists, the agency to perform its administrative work efficiently. The Agency is set up for purpose of promoting science and technology, thereby contributing to the advancement of the national economy, by carrying out the administrative function regarding science and technology in the most efficient way possible. The range of activities by the STA includes the following : basic policy for science and technology such as atomic energy, subsidies, etc. for science and technology, the relations of disaster prevention science, aviation and space science and technology, utilization of atomic energy, and so on. (Kubozono, M.)

The law for the establishment of Science and Technology Agency

International Nuclear Information System (INIS)

1984-01-01

The law provides for the scope of the administrative activities and the powers and authority of the Science and Technology Agency. This law also assists, the agency to perform its administrative work efficiently. The Agency is set up for purpose of promoting science and technology, thereby contributing to the advancement of the national economy, by carrying out the administrative function regarding science and technology in the most efficient way possible. The range of activities by the STA includes the following: basic policy for science and technology such as atomic energy, subsidies, etc. for science and technology, the relations of disaster prevention science, aviation and space science and technology, utilization of atomic energy, and so on. (Mori, K.)

Science Fiction at the Far Side of Technology

DEFF Research Database (Denmark)

Johansen, Mikkel Willum

2017-01-01

behind some of the major works of their genre; assessments that may in turn provide the inspiration for new stories based on an enhanced understanding of the dynamics of science and technology. Film critics and literary critics with a good working knowledge of science fiction may find fresh insight......This book explores what science fiction can tell us about the human condition in a technological world (with the dilemma's and consequences that this entails) and also engages with the genre at points where we apparently find it on the far side of science, technology or human existence. As such....... It is our hope that this interdisciplinary approach will set an example for those who, like us, have been busy assessing the ways in which fictional attempts to fathom the possibilities of science and technology speak to central concerns about what it means to be human in a contemporary world of technology...

Proceedings of the Second National Science and Technology Forum

International Nuclear Information System (INIS)

2005-01-01

In Zambia, a lot of research work has been carried out in Science and Technology without a matching public awareness of the achievements and potential benefits. It is for this reason the National Science and Technology Council hosted the Second National Science and Technology Forum to publicise and promote broad national prioties in Science and Technology research. Highlights included the presentation of papers on residue effect of partially acidulated phosphate rock,the fluorencenceand absortion of white and dyed cotton fabricsand the intergation of indigenious knowledge and technologies in national development among others

New concepts of science and medicine in science and technology studies and their relevance to science education.

Science.gov (United States)

Wang, Hsiu-Yun; Stocker, Joel F; Fu, Daiwie

2012-02-01

Science education often adopts a narrow view of science that assumes the lay public is ignorant, which seemingly justifies a science education limited to a promotional narrative of progress in the form of scientific knowledge void of meaningful social context. We propose that to prepare students as future concerned citizens of a technoscientific society, science education should be informed by science, technology, and society (STS) perspectives. An STS-informed science education, in our view, will include the following curricular elements: science controversy education, gender issues, historical perspective, and a move away from a Eurocentric view by looking into the distinctive patterns of other regional (in this case of Taiwan, East Asian) approaches to science, technology, and medicine. This article outlines the significance of some major STS studies as a means of illustrating the ways in which STS perspectives can, if incorporated into science education, enhance our understanding of science and technology and their relationships with society. Copyright © 2011. Published by Elsevier B.V.

New concepts of science and medicine in science and technology studies and their relevance to science education

Directory of Open Access Journals (Sweden)

Hsiu-Yun Wang

2012-02-01

Full Text Available Science education often adopts a narrow view of science that assumes the lay public is ignorant, which seemingly justifies a science education limited to a promotional narrative of progress in the form of scientific knowledge void of meaningful social context. We propose that to prepare students as future concerned citizens of a technoscientific society, science education should be informed by science, technology, and society (STS perspectives. An STS-informed science education, in our view, will include the following curricular elements: science controversy education, gender issues, historical perspective, and a move away from a Eurocentric view by looking into the distinctive patterns of other regional (in this case of Taiwan, East Asian approaches to science, technology, and medicine. This article outlines the significance of some major STS studies as a means of illustrating the ways in which STS perspectives can, if incorporated into science education, enhance our understanding of science and technology and their relationships with society.

Science & Technology Review October/November 2015

Energy Technology Data Exchange (ETDEWEB)

Orme, C. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Meissner, C. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Kotta, P. A. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

2015-11-05

At Lawrence Livermore National Laboratory, we focus on science and technology research to ensure our nation’s security. We also apply that expertise to solve other important national problems in energy, bioscience, and the environment. Science & Technology Review is published eight times a year to communicate, to a broad audience, the Laboratory’s scientific and technological accomplishments in fulfilling its primary missions. The publication’s goal is to help readers understand these accomplishments and appreciate their value to the individual citizen, the nation, and the world.

Science & Technology Review January/February 2017

Energy Technology Data Exchange (ETDEWEB)

Vogt, R. L. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Meissner, C. N. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Kotta, P. R. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

2017-01-12

At Lawrence Livermore National Laboratory, we focus on science and technology research to ensure our nation’s security. We also apply that expertise to solve other important national problems in energy, bioscience, and the environment. Science & Technology Review is published eight times a year to communicate, to a broad audience, the Laboratory’s scientific and technological accomplishments in fulfilling its primary missions. The publication’s goal is to help readers understand these accomplishments and appreciate their value to the individual citizen, the nation, and the world.

Science & Technology Review January/February 2016

Energy Technology Data Exchange (ETDEWEB)

Orme, C. A. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Meissner, C. N. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Kotta, P. R. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

2016-01-18

At Lawrence Livermore National Laboratory, we focus on science and technology research to ensure our nation’s security. We also apply that expertise to solve other important national problems in energy, bioscience, and the environment. Science & Technology Review is published eight times a year to communicate, to a broad audience, the Laboratory’s scientific and technological accomplishments in fulfilling its primary missions. The publication’s goal is to help readers understand these accomplishments and appreciate their value to the individual citizen, the nation, and the world.

High temperature vapors science and technology

CERN Document Server

Hastie, John

2012-01-01

High Temperature Vapors: Science and Technology focuses on the relationship of the basic science of high-temperature vapors to some areas of discernible practical importance in modern science and technology. The major high-temperature problem areas selected for discussion include chemical vapor transport and deposition; the vapor phase aspects of corrosion, combustion, and energy systems; and extraterrestrial high-temperature species. This book is comprised of seven chapters and begins with an introduction to the nature of the high-temperature vapor state, the scope and literature of high-temp

Advances in software science and technology

CERN Document Server

Ohno, Yoshio; Kamimura, Tsutomu

1991-01-01

Advances in Software Science and Technology, Volume 2 provides information pertinent to the advancement of the science and technology of computer software. This book discusses the various applications for computer systems.Organized into four parts encompassing 12 chapters, this volume begins with an overview of categorical frameworks that are widely used to represent data types in computer science. This text then provides an algorithm for generating vertices of a smoothed polygonal line from the vertices of a digital curve or polygonal curve whose position contains a certain amount of error. O

Science and Technology of Ceramics

Indian Academy of Sciences (India)

Home; Journals; Resonance – Journal of Science Education; Volume 4; Issue 12. Science and Technology of Ceramics - Functional Ceramics. Sheela K Ramasesha. Series Article Volume 4 Issue 12 December 1999 pp 21-30. Fulltext. Click here to view fulltext PDF. Permanent link:

Science and Technology of Ceramics

Indian Academy of Sciences (India)

Home; Journals; Resonance – Journal of Science Education; Volume 4; Issue 8. Science and Technology of Ceramics - Traditional Ceramics. Sheela K Ramasesha. Series Article Volume 4 Issue 8 August 1999 pp 16-24. Fulltext. Click here to view fulltext PDF. Permanent link:

China nuclear science and technology report. Abstracts

International Nuclear Information System (INIS)

1994-01-01

The bibliographies and abstracts of China Nuclear Science and Technology Reports published in 1993 (Report Numbers CNIC-00675∼CNIC-00800) are presented. The items are arranged according to INIS subject categories, which mainly are physical sciences, chemistry, materials, earth sciences, life sciences, isotopes, isotope and radiation applications, engineering and technology, and other aspects of nuclear energy. The numbers on the left corners of the entries are report numbers, and on the right corners the serial numbers. A report number index is annexed

China nuclear science and technology report. Abstracts

Energy Technology Data Exchange (ETDEWEB)

NONE

1994-01-01

The bibliographies and abstracts of China Nuclear Science and Technology Reports published in 1993 (Report Numbers CNIC-00675{approx}CNIC-00800) are presented. The items are arranged according to INIS subject categories, which mainly are physical sciences, chemistry, materials, earth sciences, life sciences, isotopes, isotope and radiation applications, engineering and technology, and other aspects of nuclear energy. The numbers on the left corners of the entries are report numbers, and on the right corners the serial numbers. A report number index is annexed.

Turkish Pre-Service Science Teachers' Views on Science-Technology-Society Issues

Science.gov (United States)

Yalvac, Bugrahan; Tekkaya, Ceren; Cakiroglu, Jale; Kahyaoglu, Elvan

2007-01-01

The international science education community recognises the role of pre-service science teachers' views about the interdependence of Science, Technology, and Society (STS) in achieving scientific literacy for all. To this end, pre-service science teachers' STS views signal the strengths and the weaknesses of science education reform movements.…

Resource Allocation of Agricultural Science and Technology R&D

OpenAIRE

Li, Xian-song; Bai, Li; Zhang, Li-ming

2011-01-01

The status quo of resource allocation of agricultural science and technology R&D (research and development)both at home and abroad，including the amount and function of agricultural science and technology research funds, human resources in the resources of agricultural science and technology R&D , the efficiency of resource allocation of agricultural science and technology R&D, the management system of agricultural scientific innovation and the operation status of scientific funds, is analyz...

Nano-silicon dioxide mitigates the adverse effects of salt stress on Cucurbita pepo L.

Science.gov (United States)

Siddiqui, Manzer H; Al-Whaibi, Mohamed H; Faisal, Mohammad; Al Sahli, Abdulaziz A

2014-11-01

Research into nanotechnology, an emerging science, has advanced in almost all fields of technology. The aim of the present study was to evaluate the role of nano-silicon dioxide (nano-SiO2 ) in plant resistance to salt stress through improvement of the antioxidant system of squash (Cucurbita pepo L. cv. white bush marrow). Seeds treated with NaCl showed reduced germination percentage, vigor, length, and fresh and dry weights of the roots and shoots. However, nano-SiO2 improved seed germination and growth characteristics by reducing malondialdehyde and hydrogen peroxide levels as well as electrolyte leakage. In addition, application of nano-SiO2 reduced chlorophyll degradation and enhanced the net photosynthetic rate (Pn ), stomatal conductance (gs ), transpiration rate, and water use efficiency. The increase in plant germination and growth characteristics through application of nano-SiO2 might reflect a reduction in oxidative damage as a result of the expression of antioxidant enzymes, such as catalase, peroxidase, superoxide dismutase, glutathione reductase, and ascorbate peroxidase. These results indicate that nano-SiO2 may improve defense mechanisms of plants against salt stress toxicity by augmenting the Pn , gs , transpiration rate, water use efficiency, total chlorophyll, proline, and carbonic anhydrase activity in the leaves of plants. © 2014 SETAC.

Conceptualizing Student Affect for Science and Technology at the Middle School Level: Development and Implementation of a Measure of Affect in Science and Technology (MAST)

Science.gov (United States)

Romine, William L.; Sadler, Troy D.; Wulff, Eric P.

2017-10-01

We describe the development of the Measure of Affect in Science and Technology (MAST), and study its usefulness for measuring science affect in middle school students via both classical and Rasch measurement perspectives. We then proceed to utilize the measurement structure of the MAST to understand how middle school students at varying levels of affect express their interest and attitudes toward science and technology and gender differences in how students express their affect. We found that affect in science and technology comprises a main dimension, science interest, and four peripheral dimensions: interest in careers in science and technology, attitudes toward science, and interest in attending science class. Of these, careers in science and technology carry the highest affective demand. While males showed higher levels of personal and situational interest in science, a greater interest in careers in science and technology was the biggest contributor to males' higher affect toward science and technology. We argue that whether the MAST is used as a measure of a single construct or multiple subconstructs depends upon specific research or evaluation goals; however, both uses of the MAST yield measures which produce valid inferences for student affect.

Conservation of leather historical object by nano technology in ...

African Journals Online (AJOL)

This paper examines the conservation of Antibacterial by Nano materials in the manufacture of leather and the implication of such a processes deteriorated of aging leather. As a sample study to improve this process historical cover book is used. Experimental methods are SEM EDX, Cultural Bacterial, Nano materials such ...

An emerging interface between life science and nanotechnology: present status and prospects of reproductive healthcare aided by nano-biotechnology.

Science.gov (United States)

Jha, Rakhi K; Jha, Pradeep K; Chaudhury, Koel; Rana, Suresh V S; Guha, Sujoy K

2014-01-01

Among the various applications of nano-biotechnology, healthcare is considered one of the most significant domains. For that possibility to synthesize various kind of nanoparticles (NPs) and the ever-increasing ability to control their size as well as structure, to improve surface characteristics and binding NPs with other desired curing agents has played an important role. In this paper, a brief sketch of various kinds of nanomaterials and their biomedical applications is given. Despite claims of bio-nanotechnology about to touch all areas of medical science, information pertaining to the role of nanotechnology for the betterment of reproductive healthcare is indeed limited. Therefore, the various achievements of nano-biotechnology for healthcare in general have been illustrated while giving special insight into the role of nano-biotechnology for the future of reproductive healthcare betterment as well as current achievements of nanoscience and nanotechnology in this arena.

An emerging interface between life science and nanotechnology: present status and prospects of reproductive healthcare aided by nano-biotechnology

Directory of Open Access Journals (Sweden)

Rakhi K. Jha

2014-02-01

Full Text Available Among the various applications of nano-biotechnology, healthcare is considered one of the most significant domains. For that possibility to synthesize various kind of nanoparticles (NPs and the ever-increasing ability to control their size as well as structure, to improve surface characteristics and binding NPs with other desired curing agents has played an important role. In this paper, a brief sketch of various kinds of nanomaterials and their biomedical applications is given. Despite claims of bio-nanotechnology about to touch all areas of medical science, information pertaining to the role of nanotechnology for the betterment of reproductive healthcare is indeed limited. Therefore, the various achievements of nano-biotechnology for healthcare in general have been illustrated while giving special insight into the role of nano-biotechnology for the future of reproductive healthcare betterment as well as current achievements of nanoscience and nanotechnology in this arena.

Dimensional micro and nano metrology

DEFF Research Database (Denmark)

Hansen, Hans Nørgaard; da Costa Carneiro, Kim; Haitjema, Han

2006-01-01

The need for dimensional micro and nano metrology is evident, and as critical dimensions are scaled down and geometrical complexity of objects is increased, the available technologies appear not sufficient. Major research and development efforts have to be undertaken in order to answer these chal......The need for dimensional micro and nano metrology is evident, and as critical dimensions are scaled down and geometrical complexity of objects is increased, the available technologies appear not sufficient. Major research and development efforts have to be undertaken in order to answer...... these challenges. The developments have to include new measuring principles and instrumentation, tolerancing rules and procedures as well as traceability and calibration. The current paper describes issues and challenges in dimensional micro and nano metrology by reviewing typical measurement tasks and available...

Achievement report for fiscal 1998. Research and development of nano-structural materials for ceramic bearing application (the second year); 1998 nendo seika hokokusho. Ceramic bearing yo nano seigyo zairyo no kenkyu kaihatsu (dai 2 nendo)

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

Development is made on ceramic bearing using high-performance and low-cost nano-structural materials, and its application is performed to high-quality bearings suitable for energy conservation in automobiles and industrial machines, and bearings for office automation devices, electronics, and aeronautic and maritime development. To achieve these goals, raw material synthesizing technologies, forming technologies, structural control technologies, processing technologies and mass production technologies shall be established. Fiscal 1998 had the following achievements: establishment of nano-structure controlled ceramic material powder synthesizing technology (nano-lamination type composite powder made by using the beads mill co-precipitation method, nano-lamination type composite powder made by using the New Mymill co-precipitation method, nano-lamination type composite powder made by using the controlled liquid phase method, composite nano-structured gel, and nano-powder synthesis); near net forming technology for spherical ceramics; high-speed processing technology for ultra smooth surface; evaluation of rolling fatigue properties of ceramic bearings; and analysis and evaluation of nano-structured materials. Since this alumina-based ceramic bearing can be produced at reduced cost with performance comparable to silicon nitride based bearing, investigations and discussions are being given on the application thereof. (NEDO)

Journal of Applied Science, Engineering and Technology: Editorial ...

African Journals Online (AJOL)

Focus and Scope. Journal of Applied Science Engineering and Technology accepts and publishes articles on Engineering, Physical Sciences and all fields of Technology and Biotechnology. It is published twice a year by the FACULTY OF TECHNOLOGY, UNIVERSITY OF IBADAN, IBADAN, NIGERIA. The journal covers ...

Integrating technology into radiologic science education.

Science.gov (United States)

Wertz, Christopher Ira; Hobbs, Dan L; Mickelsen, Wendy

2014-01-01

To review the existing literature pertaining to the current learning technologies available in radiologic science education and how to implement those technologies. Only articles from peer-reviewed journals and scholarly reports were used in the research for this review. The material was further restricted to those articles that emphasized using new learning technologies in education, with a focus on radiologic science education. Teaching in higher education is shifting from a traditional classroom-based lecture format to one that incorporates new technologies that allow for more varied and diverse educational models. Radiologic technology educators must adapt traditional education delivery methods to incorporate current technologies. Doing so will help engage the modern student in education in ways in which they are already familiar. As students' learning methods change, so must the methods of educational delivery. The use of new technologies has profound implications for education. If implemented properly, these technologies can be effective tools to help educators.

Ethiopian Journal of Science and Technology: Editorial Policies

African Journals Online (AJOL)

Ethiopian Journal of Science and Technology: Editorial Policies ... Science and Technology (EJST) publishes high quality original research articles, reviews, short communications, ... Professor Afework Bekele, Addis Ababa University, Ethiopia.

Getting nano tattoos right - a checklist of legal and ethical hurdles for an emerging nanomedical technology.

Science.gov (United States)

Bennett, Michael G; Naranja, R John

2013-08-01

The nano tattoo represents a nascent technology designed to be implanted in the skin to provide continuous and reliable glucose detection for diabetics. Its potential benefits are compelling not only for its ability to prevent diabetic complications and decrease related social costs, but also for its ease of use and relative patient-user comfort. This Note aims to articulate a checklist of fundamental intellectual property, bioethical and system design issues that are appropriately considered in the pre-clinical, pre-commercialization phase of nano tattoo development. Early and regular consideration of these factors can increase the odds of a societally beneficial dissemination of this device by engaging relevant researcher, medical, patient-user and patient-advocate communities concerned with its appropriate application, as well as policymaking communities focused on effectively managing diabetes-related healthcare costs. The checklist of factors includes fundamental issues and is generally applicable to nanomedical inventions. This paper presents a comprehensive list of fundamental intellectual property, bioethical, and system design issues to be considered in the pre-commercialization phase of nanomedicine development, through the specific example of nano tattoo development. Nano tattoo is designed to be implanted in the skin to provide reliable glucose monitoring for diabetics, enabling enhanced prevention of complications and decreased socioeconomic costs. Copyright © 2013 Elsevier Inc. All rights reserved.

The Effect of Nano Loading and Ultrasonic Compounding of EVA/LDPE/Nano-magnesium Hydroxide on Mechanical Properties and Distribution of Nano Particles

Science.gov (United States)

Azman, I. A.; Salleh, R. M.; Alauddin, S. M.; Shueb, M. I.

2018-05-01

Blends of Ethylene Vinyl Acetate (EVA) and Low-Density Polyethylene (LDPE) are promising composite which have good mechanical properties to environmental stress cracking. However, they lack fire resistant properties, which limits it usage in wire and cable industry. In order to improve flame retardancy ability, a range of nano-magnesium hydroxide (nano-MH) loading which is from 0 phr to maximum of 20 phr with ultrasonic extrusion 0-100 kHz frequencies have been introduced. Ultrasonic extrusion was used to improve the distribution of nano-MH. It was found that, 10 phr of nano loading with 100 kHz ultrasonic assisted has greater tensile strength compared to the nanocomposite without ultrasonication. Further increase of nano MH loading, will decrease the tensile properties. Better elongation at break was observed at10 phr nano-MH with the frequency of 50 kHz. The sample of 20 phr of nanoMH assisted with 50 kHz ultrasonic exhibits good flexural properties while 10 phr of nano-MH without the ultrasonic assisted demonstrates good in izod impact properties. From the evaluation of mechanical properties studied, it was found that 10 phr of nano-MH has shown the best performance among all the samples tested for EVA/LDPE/nano-MH composites. Transmission Electron Microscopy (TEM) has been conducted on 10 phr sample with different frequencies in order to observe the distribution of nano-MH particles. The sample with 100 kHz frequency shows more uniform dispersion of nano-MH in EVA/LDPE composites. This investigation indicates that the ultrasonic technology can enhance the mechanical properties studied as well as the dispersion of nano particles in the composite.

Hanford science and technology needs statements document

Energy Technology Data Exchange (ETDEWEB)

Piper, L.L.

1997-12-31

This document is a compilation of the Hanford science and technology needs statements for FY 1998. The needs were developed by the Hanford Site Technology Coordination Group (STCG) with full participation and endorsement of site user organizations, stakeholders, and regulators. The purpose of this document is to: (a) provide a comprehensive listing of Hanford science and technology needs, and (b) identify partnering and commercialization opportunities with industry, other federal and state agencies, and the academic community. The Hanford STCG reviews and updates the needs annually. Once completed, the needs are communicated to DOE for use in the development and prioritization of their science and technology programs, including the Focus Areas, Cross-Cutting Programs, and the Environmental Management Science Program. The needs are also transmitted to DOE through the Accelerating Cleanup: 2006 Plan. The public may access the need statements on the Internet on: the Hanford Home Page (www.hanford.gov), the Pacific Rim Enterprise Center`s web site (www2.pacific-rim.org/pacific rim), or the STCG web site at DOE headquarters (em-52.em.doegov/ifd/stcg/stcg.htm). This page includes links to science and technology needs for many DOE sites. Private industry is encouraged to review the need statements and contact the Hanford STCG if they can provide technologies that meet these needs. On-site points of contact are included at the ends of each need statement. The Pacific Rim Enterprise Center (206-224-9934) can also provide assistance to businesses interested in marketing technologies to the DOE.

Advances in welding science and technology

International Nuclear Information System (INIS)

David, S.A.; Babu, S.S.; Vitek, J.M.

1995-01-01

Over the years, welding has been more of an art than a science, but in the last few decades major advances have taken place in welding science and technology. With the development of new methodologies at the crossroads of basic and applied sciences, enormous opportunities and potential exist to develop a science-based design of composition, structure, and properties of welds with intelligent control and automation of the welding processes. In the last several decades, welding has evolved as an interdisciplinary activity requiring synthesis of knowledge from various disciplines and incorporating the most advanced tools of various basic applied sciences. A series of international conferences and other publications have covered the issues, current trends and directions in welding science and technology. In the last few decades, major progress has been made in (i) understanding physical processes in welding, (ii) characterization of microstructure and properties, and (iii) intelligent control and automation of welding. This paper describes some of these developments

PREFACE: International Seminar on Science and Technology of Glass Materials (ISSTGM-2009)

Science.gov (United States)

Veeraiah, N.

2009-07-01

The progress of the human race is linked with the development of new materials and also the values they acquired in the course of time. Though the art of glass forming has been known from Egyptian civilization, the understanding and use of these glasses for technological applications only became possible once the structural aspects were revealed by the inspiring theories proposed by William H Zachariasen. Glass and glass ceramics have become the essential materials for modern technology. The applications of these materials are wide and cover areas such as optical communication, laser host, innovative architecture, bio-medical, automobile and space technology. As we master the technology, we must also learn to use it judiciously and for the overall development of all in this global village. The International Seminar on Science and Technology of Glass Materials (ISSTGM-2009) is organized to bring together scientists, academia and industry in order to discuss various aspects of the technology and to inspire young scholars to take up fruitful research. Various topics such as glass formation and glass-ceramics, glass structure, applications of glass and glass ceramics in nuclear waste management, radiation dosimetry, electronics and information technology, biotechnological applications, bulk metallic glasses, glasses containing nano-particles, hybrid glasses, novel glasses and applications in photonics, Non-linear optics and energy generation were discussed. In this volume, 59 research articles covering 18 invited talks, 10 oral presentations and 31 poster presentations are included. We hope these will serve as a valuable resource to all the scientists and scholars working with glass materials. Acharya Nagarjuna University, established in 1976, is named after the great Buddhist preceptor and philosopher, Acharya Nagarjuna, who founded a university on the banks of river Krishna some centuries ago. The University is situated between Vijayawada and Guntur, the famous

Science and technology from global and historical perspectives

CERN Document Server

Karagözoğlu, Bahattin

2017-01-01

This book provides science and technology ethos to a literate person. It starts with a rather detailed treatment of basic concepts in human values, educational status and domains of education, development of science and technology and their contributions to the welfare of society. It describes ways and means of scientific progresses and technological advancements with their historical perspectives including scientific viewpoints of contributing scientists and technologists. The technical, social, and cultural dimensions are surveyed in relation to acquisition and application of science, and advantages and hindrances of technological developments. Science and Technology is currently taught as a college course in many universities with the intention to introduce topics from a global historical perspective so that the reader shall stretch his/her vision by mapping the past to the future. The book can also serve as a primary reference for such courses.

Communicating English for Science and Technology

DEFF Research Database (Denmark)

Mousten, Birthe

The book introduces and discusses some of the ideas, stylistics, methods, aids and conventions used in English for Science and Technology. The book centres on a mix of theoretical considerations, examples, drills and texts.......The book introduces and discusses some of the ideas, stylistics, methods, aids and conventions used in English for Science and Technology. The book centres on a mix of theoretical considerations, examples, drills and texts....

59 MDW/Science and Technology Poster

Science.gov (United States)

2017-04-28

the Air Force, and Science and Engineering community Employ innov1tlve technologies ind lj)prOIChH to sustain health, performance ind revolutionize...Medics Through Patient.Centered Care Our Goals Provide technic1I expertise and resources, project management assistance, direction, ind...SGYU SUBJECT: Professional Presentation Approval • ’ ...... -""""’ ~ 18 APR 20 17 1. Your paper, entitled 59 MDW/ Science & Technology Poster

The NanoChemistry group at the Technical University of Denmark (DTU) uses NanoSight’s NTA system for nanoparticle characterization

DEFF Research Database (Denmark)

2011-01-01

NanoSight, leading manufacturers of unique nanoparticle characterization technology, describes how the Nano Chemistry group at DTU Copenhagen is utilizing nanoparticle tracking analysis, NTA, in its research and teaching programs....

Technologies and Reformed-Based Science Instruction: The Examination of a Professional Development Model Focused on Supporting Science Teaching and Learning with Technologies

Science.gov (United States)

Campbell, Todd; Longhurst, Max L.; Wang, Shiang-Kwei; Hsu, Hui-Yin; Coster, Dan C.

2015-10-01

While access to computers, other technologies, and cyber-enabled resources that could be leveraged for enhancing student learning in science is increasing, generally it has been found that teachers use technology more for administrative purposes or to support traditional instruction. This use of technology, especially to support traditional instruction, sits in opposition to most recent standards documents in science education that call for student involvement in evidence-based sense-making activities. Many see technology as a potentially powerful resource that is reshaping society and has the potential to do the same in science classrooms. To consider the promise of technology in science classrooms, this research investigated the impact of a professional development project focused on enhancing teacher and student learning by using information and communication technologies (ICTs) for engaging students in reformed-based instruction. More specifically, these findings revealed positive teacher outcomes with respect to reformed-based and technology-supported instruction and increased ICT and new literacies skills. When considering students, the findings revealed positive outcomes with respect to ICT and new literacies skills and student achievement in science.

Next-generation air measurement technologies | Science ...

Science.gov (United States)

This is a presentation at a workshop in Chicago on emerging air monitoring technologies, hosted by a local nonprofit. The audience is composed of a mixture of technical backgrounds. This presentation will be part of an opening panel and the goal is to give an overview of the state of science on emerging air sensor technology. This is a presentation at a workshop in Chicago on emerging air monitoring technologies, hosted by a local nonprofit. The audience is composed of a mixture of technical backgrounds. This presentation will be part of an opening panel and the goal is to give an overview of the state of science on emerging air sensor technology.

The Historical Development of Vaccine Technology: Exploring the Relationship between Science and Technology

Science.gov (United States)

Lee, Yeung Chung; Kwok, Ping Wai

2017-01-01

This paper examines the feasibility of using historical case studies to contextualise the learning of the nature of science and technology in a biology lesson. Through exploring the historical development of vaccine technology, students were expected to understand the complexity of the relationships between technology and science beyond the…

7th Annual Science and Engineering Technology Conference/DoD Technology Exposition Volume 1

Science.gov (United States)

2006-04-20

Disruptive Technologies • Army Approach to Disruptive Technologies and Transition Mr. Dennis Schmidt, Director, Science & Technology Integration, Office of...the Assistant Secretary of the Army for Research and Technology • Navy Approach to Disruptive Technologies and Transition Mr. Lewis DeSandre, Program...Manager, ONR 351 • Air Force Approach to Disruptive Technologies and Transition Colonel Mark Stephen, Associate Deputy Assistant Secretary (Science

Nanotechnologies, technologies converging and potential biomedical applications

International Nuclear Information System (INIS)

Capuano, Vincenzo

2005-01-01

The applications of nanotechnology to biology and medicine appear really promising far diagnostics, for various therapeutic approaches and in medical instrumentations. The growing synergism among nanotechnology, biotechnology, information technology and cognitive sciences, their convergence (NBIC) from the nano scale, could involve on next decades great changes in medicine, from a reactive to a predictive and preventive approach. It is expected that NBIC converging technologies could achieve tremendous improvements in human abilities and enhance societal achievements. It appears therefore necessary a careful assessment of related social and ethical implications, in the framework of a constant dialogue between science and society [it

Advances in high pressure science and technology: proceedings of the fourth national conference on high pressure science and technology

International Nuclear Information System (INIS)

Yousuf, Mohammad; Subramanian, N.; Govinda Rajan, K.

1997-09-01

The proceedings of the fourth National Conference on High Pressure Science and Technology covers a wide area of research and development activities in the field of high pressure science and technology, broadly classified into the following themes: mechanical behaviour of materials; instrumentation and methods in high pressure research; pressure calibration, standards and safety aspects; phase transitions; shock induced reactions; mineral science, geophysics, geochemistry and planetary sciences; optical, electronic and transport properties; synthesis of materials; soft condensed matter physics and liquid crystals; computational methods in high pressure research. Papers relevant to INIS are indexed separately

Pittsburgh Science Technology Society Project: Instruction Modules. Interrelationships Science--Technology--Society.

Science.gov (United States)

O'Brien, George, Ed.

This collection of instruction modules studies the interactions of science, technology, and society (STS) using five activity sets. The introduction module includes activities which show students the STS relationships in their world, develop good organizational skills, develop an understanding of who and what a scientist is, develop graphing…

Journal of Science and Technology (Ghana): Editorial Policies

African Journals Online (AJOL)

Journal of Science and Technology (Ghana) ... from original research whether pure or applied in the various aspects of academic ... University Books & Publications Committee, Kwame Nkrumah University of Science and Technology (KNUST)

Comparative study on nano-Zirconium Oxide Materials used in Nuclear Technology

International Nuclear Information System (INIS)

Khalil, T.; Dakroury, G.A.; Abou El-Nour, F.; Abdel-Khlik, M.

2004-01-01

Nano-ZrO 2 powders were prepared using two advanced methods, namely SoI-GeI and Gelation techniques. Y 2 O 3 , Ce0 2 and Mg0 were used as stabilizers during the preparation processes. The function of these materials is to stabilize the meta stable tetragonal Zr0 2 phase responsible for the nano character of produced materials. The applied experimental procedures proved to be suitable to produce nano powders composed of crystallites of few nano-meter size with an interfacial component formed by all atoms situated in the grain boundaries. These two structure components (nano-sized crystallites and boundaries) of comparable volume fractions are crucial for the nano-structure materials. Powder agglo-meration, contamination during processing and remaining of the residual pores in the bodies were overcome during the sintering process of the powder by special treatment. Different analytical procedures such as DTA-TG, specific surface area, pore size analysis, density, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were carried out for Zr0 2 produced by both SoI-GeI and Gelation techniques

Application of nano-packaging in aquatics

Directory of Open Access Journals (Sweden)

D Jafarpour

2018-03-01

Conclusion: With regard to aquatics high nutritional value and their important presence in diet one should think of a way to increase it's survivability and maintaining quality. For this, nano technology can help packaging aquatics. Nano can be applied considerably in food health and environment protection.

Mozambique Science, Technology and Innovation Review | IDRC ...

International Development Research Centre (IDRC) Digital Library (Canada)

This project aims to strengthen the capacity of the Mozambique Ministry of Science and Technology (MOST) to govern the country's science, technology and innovation (STI) system, and of researchers and policymakers to conduct systematic reviews of STI policy implementation. It will do so by supporting a review of the ...

Science, Technology and Arts Research Journal: Site Map

African Journals Online (AJOL)

Science, Technology and Arts Research Journal: Site Map. Journal Home > About the Journal > Science, Technology and Arts Research Journal: Site Map. Log in or Register to get access to full text downloads.

Science, Technology and Arts Research Journal: Journal Sponsorship

African Journals Online (AJOL)

Science, Technology and Arts Research Journal: Journal Sponsorship. Journal Home > About the Journal > Science, Technology and Arts Research Journal: Journal Sponsorship. Log in or Register to get access to full text downloads.

Technology Use in Science Instruction (TUSI): Aligning the Integration of Technology in Science Instruction in Ways Supportive of Science Education Reform

Science.gov (United States)

Campbell, Todd; Abd-Hamid, Nor Hashidah

2013-08-01

This study describes the development of an instrument to investigate the extent to which technology is integrated in science instruction in ways aligned to science reform outlined in standards documents. The instrument was developed by: (a) creating items consistent with the five dimensions identified in science education literature, (b) establishing content validity with both national and international content experts, (c) refining the item pool based on content expert feedback, (d) piloting testing of the instrument, (e) checking statistical reliability and item analysis, and (f) subsequently refining and finalization of the instrument. The TUSI was administered in a field test across eleven classrooms by three observers, with a total of 33 TUSI ratings completed. The finalized instrument was found to have acceptable inter-rater intraclass correlation reliability estimates. After the final stage of development, the TUSI instrument consisted of 26-items separated into the original five categories, which aligned with the exploratory factor analysis clustering of the items. Additionally, concurrent validity of the TUSI was established with the Reformed Teaching Observation Protocol. Finally, a subsequent set of 17 different classrooms were observed during the spring of 2011, and for the 9 classrooms where technology integration was observed, an overall Cronbach alpha reliability coefficient of 0.913 was found. Based on the analyses completed, the TUSI appears to be a useful instrument for measuring how technology is integrated into science classrooms and is seen as one mechanism for measuring the intersection of technological, pedagogical, and content knowledge in science classrooms.

First COSTECH scientific and technological conference: Science and technology for growth and poverty reduction in Tanzania

International Nuclear Information System (INIS)

2006-01-01

It is well recognised worldwide that science and technology is central to creating wealth and improving the quality of life. Indeed, the main difference between the developed countries and developing countries is the level of science, technology and innovative developments and applications. It is therefore necessary to undertake deliberate efforts to ensure that science science and technology is adequately and effectively applied if sustainable national economic development is to be achieved. Recognizing the role of Science and Technology in social economic development of the nation, the government of the URT has provided an enabling environment for the application of Science and Technology in its endeavour to bring about the desired national advancements. (author)

Technologies for Medical Sciences

CERN Document Server

Tavares, João; Barbosa, Marcos; Slade, AP

2012-01-01

This book presents novel and advanced technologies for medical sciences in order to solidify knowledge in the related fields and define their key stakeholders.   The fifteen papers included in this book were written by invited experts of international stature and address important technologies for medical sciences, including: computational modeling and simulation, image processing and analysis, medical imaging, human motion and posture, tissue engineering, design and development medical devices, and mechanic biology. Different applications are treated in such diverse fields as biomechanical studies, prosthesis and orthosis, medical diagnosis, sport, and virtual reality.   This book is of interest to researchers, students and manufacturers from  a wide range of disciplines related to bioengineering, biomechanics, computational mechanics, computational vision, human motion, mathematics, medical devices, medical image, medicine and physics.

Interactions between science and technology and present-day philosophy

International Nuclear Information System (INIS)

1981-01-01

The authors plead for a revival of the symbiosis between science and technology and philosophy. Their contributions to the assessment of the consequences in science and technology as a task of philosophy as well as to the effects of science and technology on present-day philosophy want to give new impulses to this revival. (DG) [de

Innovative Technologies in Science Teaching

Science.gov (United States)

Guerra, Cecilia; Pombo, Lucia; Moreira, Antonio

2011-01-01

Technology plays a crucial role in pupils' and primary teachers' lives nowadays and its use can facilitate change towards an innovative school environment. The internet, for example, can act as a platform to foster science teaching and offers a variety of opportunities for effective science learning and engaging and motivating children. But…

African Journal of Science and Technology

African Journals Online (AJOL)

PROMOTING ACCESS TO AFRICAN RESEARCH ... The African Journal of Science and Technology (AJST) is a biannual technical publication ... Le Journal Africain de Science et de Technologie est une revue scientifique du Journal Africain ...

International Journal of Engineering, Science and Technology: Site ...

African Journals Online (AJOL)

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Archives: African Journal of Environmental Science and Technology

African Journals Online (AJOL)

Items 1 - 50 of 117 ... Archives: African Journal of Environmental Science and Technology. Journal Home > Archives: African Journal of Environmental Science and Technology. Log in or Register to get access to full text downloads.

Report on surveys in fiscal 2000 on the surveys and researches on fundamental technology of polymeric materials in relation to materials nano-technology program; 2000 nendo zairyo nano technology program ni kansuru kobunshi zairyo kiban gijutsu ni kansuru chosa kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-11-01

On the 'polymeric' technology field being the constitution elementary technology of the material neon-technology program, surveys and researches have been performed through holding workshops on the directionality of technological development to be proceeded in a medium term in the future, and the assignments to be worked on with emphasis. The 'Fundamental technology of polymeric materials workshop' was held together with the 49th polymer discussion meeting, in which 300 persons have attended showing high interest of researchers. With regard to the prospect and possibility of the polymeric technology, statements were given on the ways the polymeric technology development should be in the future, and expectations toward the polymeric technology. In the development assignments for the polymeric technology, discussions were given on the current status and problems in the primary structure control technology, tertiary structure control technology, and surface and interface structure control technology. Discussions were also given on the current status and problems in textiles as the high-order structure control technology, the current status and problems in the material forming technology, and the systematization of the polymeric technology and the knowledge thereof. The core of the polymeric technology is the nano-technology itself, whereas the expectations toward the 'Fundamental Polymeric Technology Research Center' were indicated. (NEDO)

Report on surveys in fiscal 2000 on the surveys and researches on fundamental technology of polymeric materials in relation to materials nano-technology program; 2000 nendo zairyo nano technology program ni kansuru kobunshi zairyo kiban gijutsu ni kansuru chosa kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-11-01

On the 'polymeric' technology field being the constitution elementary technology of the material neon-technology program, surveys and researches have been performed through holding workshops on the directionality of technological development to be proceeded in a medium term in the future, and the assignments to be worked on with emphasis. The 'Fundamental technology of polymeric materials workshop' was held together with the 49th polymer discussion meeting, in which 300 persons have attended showing high interest of researchers. With regard to the prospect and possibility of the polymeric technology, statements were given on the ways the polymeric technology development should be in the future, and expectations toward the polymeric technology. In the development assignments for the polymeric technology, discussions were given on the current status and problems in the primary structure control technology, tertiary structure control technology, and surface and interface structure control technology. Discussions were also given on the current status and problems in textiles as the high-order structure control technology, the current status and problems in the material forming technology, and the systematization of the polymeric technology and the knowledge thereof. The core of the polymeric technology is the nano-technology itself, whereas the expectations toward the 'Fundamental Polymeric Technology Research Center' were indicated. (NEDO)

Science teachers' perceptions of the effectiveness of technology in the laboratories: Implications for science education leadership

Science.gov (United States)

Yaseen, Niveen K.

2011-12-01

The purpose of this study was to identify science teachers' perceptions concerning the use of technology in science laboratories and identify teachers' concerns and recommendations for improving students' learning. Survey methodology with electronic delivery was used to gather data from 164 science teachers representing Texas public schools. The data confirmed that weaknesses identified in the 1990s still exist. Lack of equipment, classroom space, and technology access, as well as large numbers of students, were reported as major barriers to the implementation of technology in science laboratories. Significant differences were found based on gender, grade level, certification type, years of experience, and technology proficiency. Females, elementary teachers, traditionally trained teachers, and less experienced teachers revealed a more positive attitude toward the use of technology in science laboratories. Participants in this study preferred using science software simulations to support rather than replace traditional science laboratories. Teachers in this study recommended professional development programs that focused on strategies for a technology integrated classroom.

science, technology and environment: interchange workshops

African Journals Online (AJOL)

of stimulating discourse on pressing issues in science, technology ... the context of Lesotho in collaboration with the selected teachers (the research team),. 2. Explore how ... appropriate teaching methodologies for EE in multi- cultural science ...

Science and Technology Research for Sustainable Development in ...

African Journals Online (AJOL)

Science and Technology Research for Sustainable Development in Africa: The Imperative ... This has placed African countries at a disadvantage. ... In this paper, effort is made to establish the imperative of education to science and technology.

Nano-cellulose biopolymer based nano-biofilm biomaterial using plant biomass: An innovative plant biomaterial dataset

Directory of Open Access Journals (Sweden)

A.B.M. Sharif hossain

2018-04-01

Full Text Available The nano-cellulose derived nano-biofilm keeps a magnificent role in medical, biomedical, bioengineering and pharmaceutical industries. Plant biomaterial is naturally organic and biodegradable. This study has been highlighted as one of the strategy introducing biomass based nano-bioplastic (nanobiofilm to solve dependency on petroleum and environment pollution because of non-degradable plastic. The data study was carried out to investigate the nano-biopolymer (nanocellulose based nano-biofilm data from corn leaf biomass coming after bioprocess technology without chemicals. Corn leaf biomass was used to produce biodegradable nano-bioplastic for medical and biomedical and other industrial uses. Data on water absorption, odor, pH, cellulose content, shape and firmness, color coating and tensile strength test have been exhibited under standardization of ASTM (American standard for testing and materials. Moreover, the chemical elements of nanobiofilm like K+, CO3−−, Cl−, Na+ showed standard data using the EN (166. Keywords: Nanocellulose, Nanobiofilm, Nanobioplastic, Biodegradable, Corn leaf

Southern Africa Journal of Education, Science and Technology ...

African Journals Online (AJOL)

Southern Africa Journal of Education, Science and Technology: Journal Sponsorship. Journal Home > About the Journal > Southern Africa Journal of Education, Science and Technology: Journal Sponsorship. Log in or Register to get access to full text downloads.

Malawi Journal of Science and Technology

African Journals Online (AJOL)

AFRICAN JOURNALS ONLINE (AJOL) · Journals · Advanced Search · USING AJOL · RESOURCES ... The Malawi Journal of Science and Technology (MJST), the research journal of the Faculty of Science, Chancellor College in Malawi is ...

Formation of Au nano-patterns on various substrates using simplified nano-transfer printing method

Science.gov (United States)

Kim, Jong-Woo; Yang, Ki-Yeon; Hong, Sung-Hoon; Lee, Heon

2008-06-01

For future device applications, fabrication of the metal nano-patterns on various substrates, such as Si wafer, non-planar glass lens and flexible plastic films become important. Among various nano-patterning technologies, nano-transfer print method is one of the simplest techniques to fabricate metal nano-patterns. In nano-transfer printing process, thin Au layer is deposited on flexible PDMS mold, containing surface protrusion patterns, and the Au layer is transferred from PDMS mold to various substrates due to the difference of bonding strength of Au layer to PDMS mold and to the substrate. For effective transfer of Au layer, self-assembled monolayer, which has strong bonding to Au, is deposited on the substrate as a glue layer. In this study, complicated SAM layer coating process was replaced to simple UV/ozone treatment, which can activates the surface and form the -OH radicals. Using simple UV/ozone treatments on both Au and substrate, Au nano-pattern can be successfully transferred to as large as 6 in. diameter Si wafer, without SAM coating process. High fidelity transfer of Au nano-patterns to non-planar glass lens and flexible PET film was also demonstrated.

Nano dots and nano crystals detectors applications and questions

International Nuclear Information System (INIS)

Paltiel, Y.; Shusterman, S.; Naaman, R.; Aqua, T.; Banin, U.; Aharoni, A.

2006-01-01

Full Text: Nano technology is in the center of attention in the last decade. In our work we are using nano dots, nano crystals and quantum wells to study and fabricate infrared devices. In this study we aim to develop an accurate narrow band infrared sensor that will use quantum mechanics at room temperature. The sensor is based on a FET like structure, in which the current is very sensitive to potential changes on its surface. We have shown that this configuration provides flexibility and variability in operation bandgap and response. However, the relations between the quantum and the macroscopic world are not trivial and the coupling between worlds influences the transport, noise, and optical measurements. In this talk we will show some of the infrared devices we are studying, and try to present the rich physics and relations that combine between the two worlds

Technology-Enhanced Science Partnership Initiative: Impact on Secondary Science Teachers

Science.gov (United States)

Ng, Wan; Fergusson, Jennifer

2017-07-01

The issue of student disengagement in school science continues to pose a threat to lifting the participation rates of students undertaking STEM courses and careers in Australia and other countries globally. In Australia, several science initiatives to reverse the problem have been funded over the last two decades. Many of these initiatives involve partnerships with scientists, science educators and with industries, as is the case in this paper. The research in this paper investigated a recent partnership initiative between secondary science teachers, scientists and an educational technology company to produce science e-modules on adaptive learning platforms, enabling students to engage in personalised, inquiry-based learning and the investigation of real-world problems. One of the objectives of the partnership project was to build theoretical and pedagogical skills in teachers to deliver science by exposing them to new ways of engaging students with new digital tools, for example analytics. Using a mixed methods approach, the research investigated science teachers' pedagogical involvement in the partnership project and their perceptions of the project's impact on their teaching and students' learning. The findings indicate that the teachers believed that new technology could enhance their teaching and students' learning and that while their students were motivated by the online modules, there was still a need for scaffolding for many of the students. The effectiveness of this would depend on the teachers' ability to internalise the new technological and content knowledge resulting from the partnership and realign them with their existing pedagogical framework. The research is significant in identifying elements for successful partnership projects as well as challenges that need to be considered. It is significant in facilitating continuous discourse about new evidence-based pedagogical approaches to science education in engaging students to learn STEM subjects in a

Nano Mapper: an Internet knowledge mapping system for nanotechnology development

International Nuclear Information System (INIS)

Li Xin; Hu, Daning; Dang Yan; Chen Hsinchun; Roco, Mihail C.; Larson, Catherine A.; Chan, Joyce

2009-01-01

Nanotechnology research has experienced rapid growth in recent years. Advances in information technology enable efficient investigation of publications, their contents, and relationships for large sets of nanotechnology-related documents in order to assess the status of the field. This paper presents the development of a new knowledge mapping system, called Nano Mapper (http://nanomapper.eller.arizona.eduhttp://nanomapper.eller.arizona.edu), which integrates the analysis of nanotechnology patents and research grants into a Web-based platform. The Nano Mapper system currently contains nanotechnology-related patents for 1976-2006 from the United States Patent and Trademark Office (USPTO), European Patent Office (EPO), and Japan Patent Office (JPO), as well as grant documents from the U.S. National Science Foundation (NSF) for the same time period. The system provides complex search functionalities, and makes available a set of analysis and visualization tools (statistics, trend graphs, citation networks, and content maps) that can be applied to different levels of analytical units (countries, institutions, technical fields) and for different time intervals. The paper shows important nanotechnology patenting activities at USPTO for 2005-2006 identified through the Nano Mapper system.

Nano Mapper: an Internet knowledge mapping system for nanotechnology development

Energy Technology Data Exchange (ETDEWEB)

Li Xin, E-mail: xinli@eller.arizona.edu; Hu, Daning, E-mail: hud@eller.arizona.edu; Dang Yan, E-mail: ydang@eller.arizona.edu; Chen Hsinchun, E-mail: hchen@eller.arizona.ed [University of Arizona, Departmet of Management Information Systems, Eller College of Management (United States); Roco, Mihail C., E-mail: mroco@nsf.go [National Science Foundation (United States); Larson, Catherine A., E-mail: cal@eller.arizona.edu; Chan, Joyce, E-mail: joycepchan@eller.arizona.ed [University of Arizona, Department of Management Information Systems, Eller College of Management (United States)

2009-04-15

Nanotechnology research has experienced rapid growth in recent years. Advances in information technology enable efficient investigation of publications, their contents, and relationships for large sets of nanotechnology-related documents in order to assess the status of the field. This paper presents the development of a new knowledge mapping system, called Nano Mapper (http://nanomapper.eller.arizona.eduhttp://nanomapper.eller.arizona.edu), which integrates the analysis of nanotechnology patents and research grants into a Web-based platform. The Nano Mapper system currently contains nanotechnology-related patents for 1976-2006 from the United States Patent and Trademark Office (USPTO), European Patent Office (EPO), and Japan Patent Office (JPO), as well as grant documents from the U.S. National Science Foundation (NSF) for the same time period. The system provides complex search functionalities, and makes available a set of analysis and visualization tools (statistics, trend graphs, citation networks, and content maps) that can be applied to different levels of analytical units (countries, institutions, technical fields) and for different time intervals. The paper shows important nanotechnology patenting activities at USPTO for 2005-2006 identified through the Nano Mapper system.

Science and technology related global problems: An international survey of science educators

Science.gov (United States)

Bybee, Rodger W.; Mau, Teri

This survey evaluated one aspect of the Science-Technology-Society theme, namely, the teaching of global problems related to science and technology. The survey was conducted during spring 1984. Two hundred sixty-two science educators representing 41 countries completed the survey. Response was 80%. Findings included a ranking of twelve global problems (the top six were: World Hunger and Food Resources, Population Growth, Air Quality and Atmosphere, Water Resources, War Technology, and Human Health and Disease). Science educators generally indicated the following: the science and technology related global problems would be worse by the year 2000; they were slightly or moderately knowledgeable about the problems; print, audio-visual media, and personal experiences were their primary sources of information; it is important to study global problems in schools; emphasis on global problems should increase with age/grade level; an integrated approach should be used to teach about global problems; courses including global problems should be required of all students; most countries are in the early stages of developing programs including global problems; there is a clear trend toward S-T-S; there is public support for including global problems; and, the most significant limitations to implementation of the S-T-S theme (in order of significance) are political, personnel, social, psychological, economic, pedagogical, and physical. Implications for research and development in science education are discussed.

Tipping solutions: emerging 3D nano-fabrication/ -imaging technologies

Directory of Open Access Journals (Sweden)

Seniutinas Gediminas

2017-06-01

Full Text Available The evolution of optical microscopy from an imaging technique into a tool for materials modification and fabrication is now being repeated with other characterization techniques, including scanning electron microscopy (SEM, focused ion beam (FIB milling/imaging, and atomic force microscopy (AFM. Fabrication and in situ imaging of materials undergoing a three-dimensional (3D nano-structuring within a 1−100 nm resolution window is required for future manufacturing of devices. This level of precision is critically in enabling the cross-over between different device platforms (e.g. from electronics to micro-/nano-fluidics and/or photonics within future devices that will be interfacing with biological and molecular systems in a 3D fashion. Prospective trends in electron, ion, and nano-tip based fabrication techniques are presented.

EU-Korea Conference on Science and Technology

CERN Document Server

Lee, Jehyun

2011-01-01

Current research fields in science and technology were presented and discussed at the EKC2009, informing about the interests and directions of the scientists and engineers in EU countries and Korea. The Conference has emerged from the idea of bringing together EU and Korea to get to know each other better, especially in fields of science and technology.

An Investigation of Science and Technology Teachers’ Views on the 5th Grade Science Course

OpenAIRE

İkramettin Daşdemir

2014-01-01

This study was conducted to explore the science and technology teachers’ views on the implementation of 5th grade science course. Open-ended questions were used as a data collection tool. The study sample consisted of 28 science and technology teachers working in Erzurum in 2012-2013 education year. The data gathered were analysed via content analysis method. According to the results obtained from the open-ended questions, a great majority of science and technology teache...

Science Fiction at the Far Side of Technology

DEFF Research Database (Denmark)

Johansen, Mikkel Willum

2017-01-01

This book explores what science fiction can tell us about the human condition in a technological world (with the dilemma's and consequences that this entails) and also engages with the genre at points where we apparently find it on the far side of science, technology or human existence. As such......, it is the result of the joint efforts of scholars and scientists from various disciplines. While some of the contributors to this volume have been working professionally with science fiction for some time, others are newcomers who bring perspectives from their own field of specialization to the study of this genre....... Although a scholarly work, this book is also designed to be accessible to a general audience that has an interest in science fiction as well as a broader academic audience. Aspiring (or experienced) science fiction writers may be interested in reading critical assessments of the science and technology...

Mexico's Program for Science and Technology, 1978 to 1982.

Science.gov (United States)

Flores, Edmundo

1979-01-01

Describes briefly the National Council for Science and Technology (CONACYT) of Mexico, and outlines Mexico's Program for Science and Technology which includes 2,489 projects in basic and applied sciences at a cost of $260 million from 1978 to 1982. (HM)

Board on chemical sciences and technology

International Nuclear Information System (INIS)

1991-01-01

The Board on Chemical Sciences and Technology organizes and provides direction for standing and ad hoc committees charged with addressing specific issues relevant to the continued health of the chemical sciences and technology community. Studies currently under the oversight of the BCST include a major survey of chemical engineering, an examination of the problems of biohazards in the laboratory, and an analysis of the roots and magnitude of the problem of obsolescent facilities for research and teaching in departments in the chemical sciences and engineering. The Board continues to respond to specific agency requests for program assessments and advice. BCST members are designated to serve as liaison with major federal agencies or departments that support research in order to help identify ways for the board to assist the these organizations. The BCST also maintains close contact with professional societies and nongovernmental organizations that share the Board's concern for the health of chemical sciences and technology. Individual Board members are assigned responsibility for liaison with the American Chemical Society, the American Institute of Chemical Engineers, the American Society of Biological Chemists, the Council for Chemical Research, the Chemistry and Biochemistry Sections of the National Academy of Sciences (NAS), and the National Academy of Engineering (NAE). In the past few years, the Board has served as a focus and a forum for a variety of issues that relate specifically to the health of chemistry. A sampling of these concerns include: industry-university cooperation; basic research funding in DOD, DOE, NIH, and NSF; basic research in the chemistry of life processes; basic research in biochemical engineering; basic research in the science and technology of new materials; and undergraduate education in chemistry and chemical engineering

The NanoChemistry group at the Technical University of Denmark (DTU) uses NanoSight’s NTA system for nanoparticle characterization

DEFF Research Database (Denmark)

2011-01-01

Salisbury, UK, 7th December 2011: NanoSight, leading manufacturers of unique nanoparticle characterization technology, describes how the Nano Chemistry group at DTU Copenhagen is utilizing nanoparticle tracking analysis, NTA, in its research and teaching programs....

6. International conference on materials science and condensed matter physics. Abstracts

International Nuclear Information System (INIS)

2012-09-01

This book includes abstracts of the communications presented at the 6th International Conference on Materials Science and Condensed Matter Physics. The aim of this event is two-fold. First, it provides a nice opportunity for discussions and the dissemination of the latest results on selected topics in materials science, condensed-matter physics, and electrical methods of materials treatment. On the other hand, this is an occasion for sketching a broad perspective of scientific research and technological developments for the participants through oral and poster presentations. The abstracts presented in the book cover certain issues of modern theoretical and experimental physics and advanced technology, such as crystal growth, doping and implantation, fabrication of solid state structures; defect engineering, methods of fabrication and characterization of nanostructures including nanocomposites, nanowires and nano dots; fullerenes and nano tubes; quantum wells and superlattices; molecular-based materials, meso- and nano electronics; methods of structural and mechanical characterization; optical, transport, magnetic and superconductor properties, non-linear phenomena, size and interface effects; condensed matter theory; modelling of materials and structural properties including low dimensional systems; advanced materials and fabrication processes, device modelling and simulation of structures and elements; optoelectronics and photonics; microsensors and micro electro-mechanical systems; degradation and reliability, advanced technologies of electro-physico-chemical methods and equipment for materials machining, including modification of surfaces; electrophysical technologies of intensification of heat- and mass-transfer; treatment of biological preparations and foodstuff.

75 FR 18516 - Homeland Security Science and Technology Advisory Committee

Science.gov (United States)

2010-04-12

...; notice of closed Federal Advisory Committee meeting SUMMARY: The Homeland Security Science and Technology.... DATES: The Homeland Security Science and Technology Advisory Committee will meet April 20, 2010 from 8...: Ms. Tiwanda Burse, Science and Technology Directorate, Department of Homeland Security, 245 Murray...

Inquiry-Based Science and Technology Enrichment Program: Green Earth Enhanced with Inquiry and Technology

Science.gov (United States)

Kim, Hanna

2011-12-01

This study investigated the effectiveness of a guided inquiry integrated with technology, in terms of female middle-school students' attitudes toward science/scientists and content knowledge regarding selective science concepts (e.g., Greenhouse Effect, Air/Water Quality, Alternative Energy, and Human Health). Thirty-five female students who were entering eighth grade attended an intensive, 1-week Inquiry-Based Science and Technology Enrichment Program which used a main theme, "Green Earth Enhanced with Inquiry and Technology." We used pre- and post-attitude surveys, pre- and post-science content knowledge tests, and selective interviews to collect data and measure changes in students' attitudes and content knowledge. The study results indicated that at the post-intervention measures, participants significantly improved their attitudes toward science and science-related careers and increased their content knowledge of selected science concepts ( p < .05).

Technology thrusts for future Earth science applications

Science.gov (United States)

Habib, Shahid

2001-02-01

This paper presents NASA's recent direction to invest in the critical science instrument and platform technologies in order to realize more reliable, frequent and versatile missions for future Earth Science measurements. Historically, NASA's Earth Science Enterprise has developed and flown science missions that have been large in size, mass and volume. These missions have taken much longer to implement due to technology development time, and have carried a large suite of instruments on a large spacecraft. NASA is now facing an era where the budget for the future years is more or less flat and the possibility for any major new start does not vividly appear on the horizon. Unfortunately, the scientific measurement needs for remote sensing have not shrunk to commensurate with the budget constraints. In fact, the challenges and scientific appetite in search of answers to a score of outstanding questions have been gradually expanding. With these factors in mind, for the last three years NASA has been changing its focus to concentrate on how to take advantage of smaller missions by relying on industry, and minimizing the overall mission life cycle by developing technologies that are independent of the mission implementation cycle. The major redirection of early investment in the critical technologies should eventually have its rewards and significantly reduce the mission development period. Needless to say, in the long run this approach should save money, minimize risk, promote or encourage partnering, allow for a rapid response to measurement needs, and enable frequent missions making a wider variety of earth science measurements. This paper gives an overview of some of the identified crucial technologies and their intended applications for meeting the future Earth Science challenges.

Technology Thrust for Future Earth Science Applications

Science.gov (United States)

Habib, Shahid

2000-01-01

This paper presents NASA's recent direction to invest in the critical science instrument and platform technologies in order to realize more reliable, frequent and versatile missions for future Earth Science measurements. Traditionally, NASA's Earth Science Enterprise has developed and flown science missions that have been large in size, weight and volume. These missions have taken much longer implementation due to technology development time and have carried a large suite of instruments on a large-size spacecraft. NASA is also facing an era where the budget for the future years is more or less flat and the possibility for any major new start does not vividly appear on the horizon. Unfortunately, the scientific goals have not shrunk to commensurate with the budget constraints. In fact, the challenges and scientific appetite in search of answers to a score of outstanding questions have been gradually expanding. With these factors in mind, for the last three years NASA has been changing its focus to concentrate on how to take advantage of smaller missions by relying on industry, and minimizing the overall life cycle by infusing technologies that are being developed independently of any planned mission's implementation cycle. The major redirection of early investment in the critical technologies should have its rewards and significantly reduce the mission development period. Needless to say, in the long run this approach should save money, minimize risk, promote or encourage partnering, and allow for more frequent missions or earth science measurements to occur. This paper gives an overview of some of the identified crucial technologies and their intended applications for meeting the future Earth Science challenges.

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

Issues in Air Force Science and Technology Funding

National Research Council Canada - National Science Library

Daniel, Donald C

2006-01-01

... (to Air Force senior leadership) on The Shortfall of Science and Technology." This article bluntly pointed out that the Air Force had gone from first to last among the Armed Services in the amount it spends on science and technology...

75 FR 39955 - Homeland Security Science and Technology Advisory Committee

Science.gov (United States)

2010-07-13

... Homeland Security Science and Technology Advisory Committee meeting will be open to the public on July 20th... Burse, Science and Technology Directorate, Department of Homeland Security, 245 Murray Lane, Bldg. 410... Protection programs in Science & Technology and updates on homeland security sensitive Federally Funded...

China nuclear science and technology report 1995. Abstracts

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

The bibliographies and abstracts of China Nuclear Science and Technology Reports published in 1995 (Report Numbers CNIC-00921{approx}CNIC-01020) are presented. The items are arranged according to INIS subject categories, which mainly are physical sciences, chemistry, materials, earth sciences, life sciences, isotopes, isotope and radiation applications, engineering and technology, and other aspects of nuclear energy. The numbers on the left corners of the entries are report numbers, and on the right corners the serial numbers. A report number index is annexed.

China nuclear science and technology report 1995. Abstracts

International Nuclear Information System (INIS)

1996-03-01

The bibliographies and abstracts of China Nuclear Science and Technology Reports published in 1995 (Report Numbers CNIC-00921∼CNIC-01020) are presented. The items are arranged according to INIS subject categories, which mainly are physical sciences, chemistry, materials, earth sciences, life sciences, isotopes, isotope and radiation applications, engineering and technology, and other aspects of nuclear energy. The numbers on the left corners of the entries are report numbers, and on the right corners the serial numbers. A report number index is annexed

China nuclear science and technology report abstracts 1996

International Nuclear Information System (INIS)

1997-10-01

The bibliographies and abstracts of China Nuclear Science and Technology Reports published in 1996 (Report Numbers CNIC-01021∼CNIC-01130) are presented. The items are arranged according to INIS subject categories, which mainly are physical sciences, chemistry, materials, earth sciences, life sciences, isotopes, isotope and radiation applications engineering and technology, and other aspects of nuclear energy. The numbers on the left corners of the entries are report numbers, and on the right corners the serial numbers. A report number index is annexed

Abstracts China nuclear science and technology report (1999)

International Nuclear Information System (INIS)

2001-01-01

The bibliographies and abstracts of China Nuclear Science and Technology Reports published in 1999 (Report Numbers CNIC-01331 -CNIC-01430) are presented. The items are arranged according to INIS subject categories, which mainly are physical sciences, chemistry, materials, earth sciences, life sciences, isotopes, isotope and radiation applications, engineering and technology, and other aspects of nuclear energy. The numbers on the left corners of the entries are report numbers, and on the right corners the serial numbers. A report number index is annexed

China nuclear science and technology report. Abstracts 1994

Energy Technology Data Exchange (ETDEWEB)

NONE

1995-02-01

The bibliographies and abstracts of China Nuclear Science and Technology Reports published in 1994 (Report Numbers CNIC-00801{approx}CNIC-00920) are presented. The items are arranged according to INIS subject categories, which mainly are physical sciences, chemistry, materials, earth sciences, life sciences, isotopes, isotope and radiation applications, engineering and technology, and other aspects of nuclear energy. The numbers on the left corners of the entries are report numbers, and on the right corners the serial numbers. A report number index is annexed.

China nuclear science and technology report abstracts 1996

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-10-01

The bibliographies and abstracts of China Nuclear Science and Technology Reports published in 1996 (Report Numbers CNIC-01021{approx}CNIC-01130) are presented. The items are arranged according to INIS subject categories, which mainly are physical sciences, chemistry, materials, earth sciences, life sciences, isotopes, isotope and radiation applications engineering and technology, and other aspects of nuclear energy. The numbers on the left corners of the entries are report numbers, and on the right corners the serial numbers. A report number index is annexed.

Abstracts China nuclear science and technology report (1999)

Energy Technology Data Exchange (ETDEWEB)

NONE

2001-04-01

The bibliographies and abstracts of China Nuclear Science and Technology Reports published in 1999 (Report Numbers CNIC-01331 -CNIC-01430) are presented. The items are arranged according to INIS subject categories, which mainly are physical sciences, chemistry, materials, earth sciences, life sciences, isotopes, isotope and radiation applications, engineering and technology, and other aspects of nuclear energy. The numbers on the left corners of the entries are report numbers, and on the right corners the serial numbers. A report number index is annexed.

China nuclear science and technology report. Abstracts 1994

International Nuclear Information System (INIS)

1995-02-01

The bibliographies and abstracts of China Nuclear Science and Technology Reports published in 1994 (Report Numbers CNIC-00801∼CNIC-00920) are presented. The items are arranged according to INIS subject categories, which mainly are physical sciences, chemistry, materials, earth sciences, life sciences, isotopes, isotope and radiation applications, engineering and technology, and other aspects of nuclear energy. The numbers on the left corners of the entries are report numbers, and on the right corners the serial numbers. A report number index is annexed

Annual Science and Engineering Technology Conference/DOD Technology Exposition (7th). Volume 2. Wednesday - Thursday

Science.gov (United States)

2006-04-20

Disruptive Technologies • Army Approach to Disruptive Technologies and Transition Mr. Dennis Schmidt, Director, Science & Technology Integration, Office of...the Assistant Secretary of the Army for Research and Technology • Navy Approach to Disruptive Technologies and Transition Mr. Lewis DeSandre, Program...Manager, ONR 351 • Air Force Approach to Disruptive Technologies and Transition Colonel Mark Stephen, Associate Deputy Assistant Secretary (Science

Board on chemical sciences and technology

International Nuclear Information System (INIS)

1991-01-01

The Board on Chemical Sciences and Technology organizes and provides direction for standing and ad-hoc committees charged with addressing specific issues relevant to the continued health of the chemical sciences and technology community. Studies currently under the oversight of the BCST include a major survey of the chemical sciences, a complementary survey of chemical engineering, an examination of the problems of biohazards in the laboratory, and an analysis of the roots and magnitude of the problem of obsolescent facilities for research and teaching in departments in the chemical sciences and engineering. The Board continues to respond to specific agency requests for program assessments and advice. BCST members are designated to serve as liaison with major federal agencies or departments that support research in order to help identify ways for the Board to assist these organizations. The BCST maintains close contact with professional societies and non-governmental organizations that share the Board's concern for the health of chemical sciences and technology. Individual Board members are assigned responsibility for liaison with the American Chemical Society, the American Institute of Chemical Engineers, the American Society of Biological Chemists, the Council for Chemical Research, the NAS Chemistry and Biochemistry Sections, and the National Academy of Engineering. In the past few years, the Board has served as a focus and a forum for a variety of issues that relate specifically to the health of chemistry

75 FR 28275 - Homeland Security Science and Technology Advisory Committee

Science.gov (United States)

2010-05-20

...: The Homeland Security Science and Technology Advisory Committee met on April 20, 2010 from 8:30 a.m... and Technology Directorate, Department of Homeland Security, 245 Murray Lane, Bldg. 410, Washington... for the Under Secretary of Homeland Security for Science and Technology. The Homeland Security Science...

Advances in nuclear science and technology

CERN Document Server

Henley, Ernest J

1973-01-01

Advances in Nuclear Science and Technology, Volume 7 provides information pertinent to the fundamental aspects of nuclear science and technology. This book discusses the safe and beneficial development of land-based nuclear power plants.Organized into five chapters, this volume begins with an overview of irradiation-induced void swelling in austenitic stainless steels. This text then examines the importance of various transport processes for fission product redistribution, which depends on the diffusion data, the vaporization properties, and the solubility in the fuel matrix. Other chapters co

The handbook of science and technology studies

CERN Document Server

Fouché, Rayvon; Miller, Clark A; Smith-Doerr, Laurel

2017-01-01

Science and Technology Studies (STS) is a flourishing interdisciplinary field that examines the transformative power of science and technology to arrange and rearrange contemporary societies. The Handbook of Science and Technology Studies provides a comprehensive and authoritative overview of the field, reviewing current research and major theoretical and methodological approaches in a way that is accessible to both new and established scholars from a range of disciplines. This new edition, sponsored by the Society for Social Studies of Science, is the fourth in a series of volumes that have defined the field of STS. It features 36 chapters, each written for the fourth edition, that capture the state of the art in a rich and rapidly growing field. One especially notable development is the increasing integration of feminist, gender, and postcolonial studies into the body of STS knowledge. The book covers methods and participatory practices in STS research; mechanisms by which knowledge, people, and societies ...

PLGA nanoparticles from nano-emulsion templating as imaging agents: Versatile technology to obtain nanoparticles loaded with fluorescent dyes.

Science.gov (United States)

Fornaguera, C; Feiner-Gracia, N; Calderó, G; García-Celma, M J; Solans, C

2016-11-01

The interest in polymeric nanoparticles as imaging systems for biomedical applications has increased notably in the last decades. In this work, PLGA nanoparticles, prepared from nano-emulsion templating, have been used to prepare novel fluorescent imaging agents. Two model fluorescent dyes were chosen and dissolved in the oil phase of the nano-emulsions together with PLGA. Nano-emulsions were prepared by the phase inversion composition (PIC) low-energy method. Fluorescent dye-loaded nanoparticles were obtained by solvent evaporation of nano-emulsion templates. PLGA nanoparticles loaded with the fluorescent dyes showed hydrodynamic radii lower than 40nm; markedly lower than those reported in previous studies. The small nanoparticle size was attributed to the nano-emulsification strategy used. PLGA nanoparticles showed negative surface charge and enough stability to be used for biomedical imaging purposes. Encapsulation efficiencies were higher than 99%, which was also attributed to the nano-emulsification approach as well as to the low solubility of the dyes in the aqueous component. Release kinetics of both fluorescent dyes from the nanoparticle dispersions was pH-independent and sustained. These results indicate that the dyes could remain encapsulated enough time to reach any organ and that the decrease of the pH produced during cell internalization by the endocytic route would not affect their release. Therefore, it can be assumed that these nanoparticles are appropriate as systemic imaging agents. In addition, in vitro toxicity tests showed that nanoparticles are non-cytotoxic. Consequently, it can be concluded that the preparation of PLGA nanoparticles from nano-emulsion templating represents a very versatile technology that enables obtaining biocompatible, biodegradable and safe imaging agents suitable for biomedical purposes. Copyright © 2016 Elsevier B.V. All rights reserved.

Water Science and Technology Board. Annual report 1991

Energy Technology Data Exchange (ETDEWEB)

1995-01-01

This report summarizes the activities of the Water Science and Technology Board during 1991. The WSTB is intended to be a dynamic forum, a mechanism by which the broad community of water science, technology, and policy professionals can help assure high-quality national water programs. The principal products of WSTB studies are written reports which cover a wide range of water resources issues of current national concern. A few recent examples are: Restoration of aquatic ecosystems - science, technologies and public policy; Water transfers in the West - efficiency, equity and the environment; Opportunities in the hydrologic sciences; and Ground water models - scientific and regulatory applications. Projects completed, ongoing studies and published reports are described in detail in their respective sections of this report.

How Do Science and Technology Affect International Affairs?

Science.gov (United States)

Weiss, Charles

2015-01-01

Science and technology influence international affairs by many different mechanisms. Both create new issues, risks and uncertainties. Advances in science alert the international community to new issues and risks. New technological capabilities transform war, diplomacy, commerce, intelligence, and investment. This paper identifies six basic…

Radiation induced nano structures

International Nuclear Information System (INIS)

Ibragimova, E.M.; Kalanov, M.U.; Khakimov, Z.

2006-01-01

Full text: Nanometer-size silicon clusters have been attracting much attention due to their technological importance, in particular, as promising building blocks for nano electronic and nano photonic systems. Particularly, silicon wires are of great of interest since they have potential for use in one-dimensional quantum wire high-speed field effect transistors and light-emitting devices with extremely low power consumption. Carbon and metal nano structures are studied very intensely due to wide possible applications. Radiation material sciences have been dealing with sub-micron objects for a long time. Under interaction of high energy particles and ionizing radiation with solids by elastic and inelastic mechanisms, at first point defects are created, then they form clusters, column defects, disordered regions (amorphous colloids) and finally precipitates of another crystal phase in the matrix. Such irradiation induced evolution of structure defects and phase transformations was observed by X-diffraction techniques in dielectric crystals of quartz and corundum, which exist in and crystal modifications. If there is no polymorphism, like in alkali halide crystals, then due to radiolysis halogen atoms are evaporated from the surface that results in non-stoichiometry or accumulated in the pores formed by metal vacancies in the sub-surface layer. Nano-pores are created by intensive high energy particles irradiation at first chaotically and then they are ordered and in part filled by inert gas. It is well-known mechanism of radiation induced swelling and embrittlement of metals and alloys, which is undesirable for construction materials for nuclear reactors. Possible solution of this problem may come from nano-structured materials, where there is neither swelling nor embrittlement at gas absorption due to very low density of the structure, while strength keeps high. This review considers experimental observations of radiation induced nano-inclusions in insulating

Ethics, science and technology

Directory of Open Access Journals (Sweden)

Ivan Domingues

2006-01-01

Full Text Available The article aims at thinking the relation between ethics, science and technology, emphasising the problem of their re-linking, after the split into judgements of fact and judgements of value, which happened in the beginning of modern times. Once the warlike Aristocracy's ethics and the saint man's moral are examined, one tries to outline the way by taking as a reference the ethics of responsibility, whose prototype is the wise man's moral, which disappeared in the course of modern times, due to the fragmentation of knowing and the advent of the specialist. At the end of the study, the relation between ethics and metaphysics is discussed, aiming at adjusting the anthropological question to the cosmological perspective, as well as at providing the bases of a new humanism, objectifying the humanising of technique and the generation of a new man, literate at science, technology and the humanities.

Synthesis and characterization of novel amphiphilic copolymer stearic acid-coupled F127 nanoparticles for nano-technology based drug delivery system.

Science.gov (United States)

Gao, Qihe; Liang, Qing; Yu, Fei; Xu, Jian; Zhao, Qihua; Sun, Baiwang

2011-12-01

Pluronic, F127, amphiphilic block copolymers, are used for several applications, including drug delivery systems. The critical micelle concentration (CMC) of F127 is about 0.26-0.8 wt% so that the utility of F127 in nano-technology based drug delivery system is limited since the nano-sized micelles could dissociate upon dilution. Herein, stearic acid (SA) was simply coupled to F127 between the carboxyl group of SA and the hydroxyl group of F127, which formed a novel copolymer named as SA-coupled F127, with significantly lower CMC. Above the CMC 6.9 × 10(-5)wt%, SA-coupled F127 self-assembled stable nanoparticles with Zeta potential -36 mV. Doxorubicin (DOX)-loaded nanoparticles were made, with drug loading (DL) 5.7 wt% and Zeta potential -36 to -39 mV, and the nanoparticles exhibited distinct shape with the size distribution from 20 to 50 nm. DOX-loaded nanoparticles were relatively stable and exhibited DOX dependant cytotoxicity toward MCF-7 cells in vitro. These results suggest that SA-coupled F127 potentially could be applied as a nano-technology based drug delivery method. Copyright © 2011 Elsevier B.V. All rights reserved.

Preparation of ultra-fine powders from polysaccharide-coated solid lipid nanoparticles and nanostructured lipid carriers by innovative nano spray drying technology.

Science.gov (United States)

Wang, Taoran; Hu, Qiaobin; Zhou, Mingyong; Xue, Jingyi; Luo, Yangchao

2016-09-10

In this study, five polysaccharides were applied as natural polymeric coating materials to prepare solid lipid nanoparticles (SLN) and nanostructure lipid carriers (NLC), and then the obtained lipid colloidal particles were transformed to solid powders by the innovative nano spray drying technology. The feasibility and suitability of this new technology to generate ultra-fine lipid powder particles were evaluated and the formulation was optimized. The spray dried SLN powder exhibited the aggregated and irregular shape and dimension, but small, uniform, well-separated spherical powder particles of was obtained from NLC. The optimal formulation of NLC was prepared by a 20-30% oleic acid content with carrageenan or pectin as coating material. Therefore, nano spray drying technology has a potential application to produce uniform, spherical, and sub-microscale lipid powder particles when the formulation of lipid delivery system is appropriately designed. Copyright © 2016 Elsevier B.V. All rights reserved.

Building Science and Technology Solutions for National Problems

International Nuclear Information System (INIS)

Bishop, Alan R.

2012-01-01

The nation's investment in Los Alamos has fostered scientific capabilities for national security missions. As the premier national security science laboratory, Los Alamos tackles: (1) Multidisciplinary science, technology, and engineering challenges; (2) Problems demanding unique experimental and computational facilities; and (3) Highly complex national security issues requiring fundamental breakthroughs. Our mission as a DOE national security science laboratory is to develop and apply science, technology, and engineering solutions that: (1) ensure the safety, security, and reliability of the US nuclear deterrent; (2) protect against the nuclear threat; and (3) solve national security challenges.

Advances in nuclear science and technology

CERN Document Server

Henley, Ernest J

1976-01-01

Advances in Nuclear Science and Technology, Volume 9 provides information pertinent to the fundamental aspects of nuclear science and technology. This book discusses the safe and beneficial development of land-based nuclear power plants.Organized into five chapters, this volume begins with an overview of the possible consequences of a large-scale release of radioactivity from a nuclear reactor in the event of a serious accident. This text then discusses the extension of conventional perturbation techniques to multidimensional systems and to high-order approximations of the Boltzmann equation.

Advances in nuclear science and technology

CERN Document Server

Henley, Ernest J

1972-01-01

Advances in Nuclear Science and Technology, Volume 6 provides information pertinent to the fundamental aspects of nuclear science and technology. This book covers a variety of topics, including nuclear steam generator, oscillations, fast reactor fuel, gas centrifuge, thermal transport system, and fuel cycle.Organized into six chapters, this volume begins with an overview of the high standards of technical safety for Europe's first nuclear-propelled merchant ship. This text then examines the state of knowledge concerning qualitative results on the behavior of the solutions of the nonlinear poin

Advances in software science and technology

CERN Document Server

Hikita, Teruo; Kakuda, Hiroyasu

1993-01-01

Advances in Software Science and Technology, Volume 4 provides information pertinent to the advancement of the science and technology of computer software. This book discusses the various applications for computer systems.Organized into two parts encompassing 10 chapters, this volume begins with an overview of the historical survey of programming languages for vector/parallel computers in Japan and describes compiling methods for supercomputers in Japan. This text then explains the model of a Japanese software factory, which is presented by the logical configuration that has been satisfied by

Advances in software science and technology

CERN Document Server

Kakuda, Hiroyasu; Ohno, Yoshio

1992-01-01

Advances in Software Science and Technology, Volume 3 provides information pertinent to the advancement of the science and technology of computer software. This book discusses the various applications for computer systems.Organized into two parts encompassing 11 chapters, this volume begins with an overview of the development of a system of writing tools called SUIKOU that analyzes a machine-readable Japanese document textually. This text then presents the conditioned attribute grammars (CAGs) and a system for evaluating them that can be applied to natural-language processing. Other chapters c

Science-and-Technology-oriented-Society and Man

Science.gov (United States)

Fukui, Ken'ichi

This is a special lecture at the 30th anniversary of JICST. To develop science-and-te chnology-oriented society it is important to evaluate and select infinite information resources on science and technology, and to reorganize and apply them. This also relates to humanity. For the future, we have to establish scientific ethics that can exceed the expedience of science and technology. To be concrete, we have to create new industrial value that recovers and reclaims natural resources which men had wasted so far, and we have to establish a new technology to distribute maldistributed industrial benefits equally. And then, the selfcontrol of the human aiming at the harmony of nature and man will secure human liberty, and it will be done by the good function of man's brain.

Missing Links: Gender Equity in Science and Technology for ...

International Development Research Centre (IDRC) Digital Library (Canada)

Missing Links: Gender Equity in Science and Technology for Development. Book cover ... Gender Working Group of the United Nations Commission on Science and Technology for Development. Publisher(s): ... Knowledge. Innovation.

[Earth Science Technology Office's Computational Technologies Project

Science.gov (United States)

Fischer, James (Technical Monitor); Merkey, Phillip

2005-01-01

This grant supported the effort to characterize the problem domain of the Earth Science Technology Office's Computational Technologies Project, to engage the Beowulf Cluster Computing Community as well as the High Performance Computing Research Community so that we can predict the applicability of said technologies to the scientific community represented by the CT project and formulate long term strategies to provide the computational resources necessary to attain the anticipated scientific objectives of the CT project. Specifically, the goal of the evaluation effort is to use the information gathered over the course of the Round-3 investigations to quantify the trends in scientific expectations, the algorithmic requirements and capabilities of high-performance computers to satisfy this anticipated need.

Physics Problems Based on Up-to-Date Science and Technology.

Science.gov (United States)

Folan, Lorcan M.; Tsifrinovich, Vladimir I.

2007-03-01

We observe a huge chasm between up-to-date science and undergraduate education. The result of this chasm is that current student interest in undergraduate science is low. Consequently, students who are graduating from college are often unable to take advantage of the many opportunities offered by science and technology. Cutting edge science and technology frequently use the methods learned in undergraduate courses, but up-to-date applications are not normally used as examples or for problems in undergraduate courses. There are many physics problems which contain information about the latest achievements in science and technology. But typically, the level of these problems is too advanced for undergraduates. We created physics problems for undergraduate science and engineering students, which are based on the latest achievements in science and technology. These problems have been successfully used in our courses at the Polytechnic University in New York. We believe that university faculty may suggest such problems in order to provide information about the frontiers of science and technological, demonstrate the importance of undergraduate physics in solving contemporary problems and raise the interest of talented students in science. From the other side, our approach may be considered an indirect way for advertising advanced technologies, which undergraduate students and, even more important, future college graduates could use in their working lives.

Applications of Nanomaterials in Dental Science: A Review.

Science.gov (United States)

Sharan, Jitendra; Singh, Shivani; Lale, Shantanu V; Mishra, Monu; Koul, Veena; Kharbanda, P

2017-04-01

Nanotechnology has revolutionized health care industry in a large scale and its applications are a boon to modern medicine and dental science. It is expected to pervade and further revolutionize the art and science of dentistry and may well have important applications spanning all the aspects of oral diseases, diagnosis, prevention and treatment. Materials science in dentistry has embraced the technology to produce nanomaterials that are being used in caries inhibitors, antimicrobial resins, hard tissue remineralizing agents, targeted drug delivery, scaffolds, bio-membranes, nanocrystalline hydroxyl apatite, restorative cements, adhesion promoters and boosters, bioactive glass, tissue conditioners, reinforced methacrylate resins, root canal disinfectants, friction free orthodontic arch wires and nano composites life. These upcoming technologies have potential to bring about significant benefits in the form of improvement in dental science and to society. The present review presents the latest recent developments in this interdisciplinary field bridging nanotechnology and dental science.

ACCOUNTING AS BRANCH OF KNOWLEDGE: SCIENCE, TECHNOLOGY AND PRACTICE

OpenAIRE

Farias, Manoel Raimundo Santana; Martins, Gilberto de Andrade

2015-01-01

The aim of this study was to characterize the accounting as branch of knowledge in three different fields: science, technology and practice. Through theoretical essay, we was argued that, although distinct, these fields interact, in that, as epistemology that justified the analysis here undertaken, the practical activities may be technology subject matter and that to be effective if based on one or more sciences. The difference between science and technology is given by the nature of knowledg...

Southern Africa Journal of Education, Science and Technology

African Journals Online (AJOL)

The Southern Africa Journal of Science and Technology is a peer-reviewed journal that seeks to promote original research and disseminated knowledge in the fields of education, science and technology. Vol 3, No 1-2 (2008). DOWNLOAD FULL TEXT Open Access DOWNLOAD FULL TEXT Subscription or Fee Access ...

FY 1999 report on the results of the development of technology of super metal. Development of nano/amorphous structure control materials; 1999 nendo super metal no gijutsu kaihatsu seika hokokusho. Nano amorphous kozo seigyo gijutsu no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

2000-03-01

For the purpose of reducing the amount of energy consumption of transportation equipment such as automobiles, the development is made of innovative metal materials enabling the weight reduction of members relatively on the basis of simple chemical components and by making more substantial improvement of characteristics such as strength and toughness than in the existing metals. For it, the following R and D are conducted in which nano crystal structure and non-equilibrium phase structure such as amorphous are controlled to the limits: 1) particle micro-dispersion technology; 2) high speed super plastic formation technology; 3) high density energy utilization control technology; 4) control cooling technology. In 1), study was made of alloy components and effects of the creation process which are needed for achievement of the nano level of crystal grain. In 2), conditions of vapor deposition and production in high speed particle deposition method are optimally selected, and amorphous and nano crystal structures can easily be produced. In 3), high corrosion-resistant amorphous alloy bulk materials with 5mm thickness and 10mm diameter were successfully trially manufactured. In 4), a bulk amorphous specimen with 10mm outer diameter, 6mm inner diameter and 1mm thickness which was fabricated in the forging method indicated favorable magnetic properties. A method to make a specimen which is more stable is being studied. (NEDO)

Science and technology disclosure in the state of Queretaro: Science and Technology for Children program

Science.gov (United States)

Contreras Flores, Rubén; Villeda Muñoz, Gabriel

2007-03-01

Science and technology disclosure is an integral part of our scientific work as researches; it is an induction process for children, young people and teachers of primary and secondary schools in the state of Queretaro. Education must be offered in a clear and objective way, it allows to the students apply the acquired knowledge to understand the world and improve his quality of life. Nowadays, the Centro de Investigacion en Ciencia Aplicada y Tecnologia Avanzada of the Instituto Politecnico Nacional Unidad Queretaro (CICATA-IPN Queretaro) together with the Consejo de Ciencia y Tecnologia del Estado de Queretaro (CONCYTEQ) have implemented the "Science and Technology for Children" program (Ciencia y Tecnologia para Ninos - CTN), it allows to the educative sector obtain information through the CONCYTEQ web page. The fist stage of the program was the development of two subjects: the brochure titled "Petroleum, Nonrenewable Natural Resource that Moves the World" and the manual "Experiments of Physics". At the moment we are working with the second stage of the program, it is about the energy generation using renewable sources such as: geothermal, aeolian, solar and biomass. The CTN program allows to students and teachers to create conscience about the importance of the development of the science of technology in our country.

Theoretical and experimental studies of single event effect induced by atmospheric muons on nano-metric technologies

International Nuclear Information System (INIS)

Li Cavoli, P.

2016-01-01

This study concerns the domain of the microelectronics. It consists in the study of the impact of the 3D morphology of the energy deposit on the Single Event Effect (SEE) modeling, induced by atmospheric muons. Over a first phase, the approach has consisted in the modeling of the energy deposit induced by protons in nano-metric volumes. For that purpose the use of the Monte Carlo code GEANT4 has allowed us to simulate and stock in a database the tracks characteristics of the energy deposit induced by protons. Once the approach validated for the protons, simulations of the energy deposit induced by muons have been realized. A CCD camera has been used in order to measure the radiative atmospheric environment and to constrain the modeling of the energy deposit induced by muons. This study highlights and quantify the contribution of the radial distribution of the energy deposit induced by protons in nano-metric volumes for the SEE prediction. On the other hand, the study shows that the contribution of the radial distribution of the energy deposit induced by muons in nano-metric volumes has a negligible impact on the SEE modeling. It will be interesting to realize measurements of the energy deposit induced by muons in nano-metric technologies under particle accelerator. This will allow to bring experimental data still nonexistent necessary to the development of new physical models more accurate on the modeling of the energy deposit induced by muons. (author)

JPRS Report, Science & Technology, Japan

Science.gov (United States)

1988-05-06

Sought ( Nobuaki Teraoka; PUROMETEUSU, Nov 87) 62 IPCR Molecular Laser Uranium Enrichment Method Discussed (GENSHIRYOKU IINKAI GEPPO, Nov 87... Kobayashi ) Investigation of Tokyo University character of winter (Professor Tatsuo thunder on Japan Kawamura, Sea side by new Assistant...PUROMETEUSU in Japanese Nov 87 pp 78-81 [Article by Nobuaki Teraoka, Technology Development Division, Atomic Energy Bureau, Science and Technology Agency

Petroleum Science and Technology Institute with the TeXas Earth and Space Science (TXESS) Revolution

Science.gov (United States)

Olson, H. C.; Olson, J. E.; Bryant, S. L.; Lake, L. W.; Bommer, P.; Torres-Verdin, C.; Jablonowski, C.; Willis, M.

2009-12-01

The TeXas Earth and Space Science (TXESS) Revolution, a professional development program for 8th- thru 12th-grade Earth Science teachers, presented a one-week Petroleum Science and Technology Institute at The University of Texas at Austin campus. The summer program was a joint effort between the Jackson School of Geosciences and the Department of Petroleum and Geosystems Engineering. The goal of the institute was to focus on the STEM components involved in the petroleum industry and to introduce teachers to the larger energy resources theme. The institute kicked off with a welcoming event and tour of a green, energy-efficient home (LEED Platinum certified) owned by one of the petroleum engineering faculty. Tours of the home included an introduction to rainwater harvesting, solar energy, sustainable building materials and other topics on energy efficiency. Classroom topics included drilling technology (including a simulator lab and an overview of the history of the technology), energy use and petroleum geology, well-logging technology and interpretation, reservoir engineering and volumetrics (including numerous labs combining chemistry and physics), risk assessment and economics, carbon capture and storage (CO2 sequestration technology) and hydraulic fracturing. A mid-week field trip included visiting the Ocean Star offshore platform in Galveston, the Weiss Energy Hall at the Houston Museum of Science and Schlumberger (to view 3-D visualization technology) in Houston. Teachers remarked that they really appreciated the focused nature of the institute and especially found the increased use of mathematics both a tool for professional growth, as well as a challenge for them to use more math in their science classes. STEM integration was an important feature of the summer institute, and teachers found the integration of science (earth sciences, geophysics), technology, engineering (petroleum, chemical and reservoir) and mathematics particularly valuable. Pre

Towards security in nano-communication : Challenges and opportunities

NARCIS (Netherlands)

Dressler, Falko; Kargl, Frank

Incredible improvements in the field of nano-technologies have enabled nano-scale machines that promise new solutions for several applications in biomedical, industry and military fields. Some of these applications require or might exploit the potential advantages of communication and hence

Visualizing the nuclear science and technology knowledge domain

Energy Technology Data Exchange (ETDEWEB)

Melo, Bruno Mattos Souza de Souza; Honaiser, Eduardo H.R. [Centro Tecnologico da Marinha em Sao Paulo (CTMSP), SP (Brazil)]. E-mails: brunomelo@ieee.org; ehonaiser@yahoo.com.br

2007-07-01

In this paper, a knowledge domain visualization approach is applied to the nuclear science and technology fields. A so-called concept density map based on the abstracts of the papers presented at the ICONE 14 is constructed. The concept map provides an overview of the nuclear science and technology fields by visualizing the associations between their main concepts. To analyze recent developments the concept map is compared with a concept map based on abstracts of earlier ICONE meetings. The analysis presented in the paper provides insight into the structure of the nuclear science and technology fields and into the most significant developments carried out during the last few years. (author)

5. International conference on materials science and condensed matter physics and symposium 'Electrical methods of materials treatment'. Abstracts

International Nuclear Information System (INIS)

2010-09-01

This book includes abstracts of the communications presented at the 5th International Conference on Materials Science and Condensed-Matter Physics and at the Symposium dedicated to the 100th anniversary of academician Boris Lazarenko, the prominent scientist and inventor, the first director of the Institute of Applied Physics of the Academy of Sciences of Moldova. The abstracts presented in the book cover a vast range of subjects, such as: advanced materials and fabrication processes; methods of crystal growth, post-growth technological processes, doping and implantation, fabrication of solid state structures; defect engineering, engineering of molecular assembly; methods of nanostructures and nano materials fabrication and characterization; quantum wells and superlattices; nano composite, nanowires and nano dots; fullerenes and nano tubes, molecular materials, meso- and nano electronics; methods of material and structure characterization; structure and mechanical characterization; optical, electrical, magnetic and superconductor properties, transport processes, nonlinear phenomena, size and interface effects; advances in condensed matter theory; theory of low dimensional systems; modelling of materials and structure properties; development of theoretical methods of solid-state characterization; phase transition; advanced quantum physics for nano systems; device modelling and simulation, device structures and elements; micro- and optoelectronics; photonics; microsensors and micro electro-mechanical systems; microsystems; degradation and reliability, solid-state device design; theory and advanced technologies of electro-physico-chemical and combined methods of materials machining and treatment, including modification of surfaces; theory and advanced technologies of using electric fields, currents and discharges so as to intensify heat mass-transfer, to raise the efficiency of treatment of materials, of biological preparations and foodstuff; modern equipment for

Democratizing science and technology education: Perspectives from the philosophy of education

Science.gov (United States)

Pierce, Clayton Todd

This study examines conceptualizations of science and technology and their relation to ideas of democratic education in the history of philosophy of education. My genealogical analysis begins by tracing the anti-democratic emergence of ideas and values of science and technology that have evolved through ancient and modern periods within the philosophy of education and continue to shape the ways science and technology are understood and treated in educational settings. From my critical engagement with Plato's Republic and Rousseau's Emile, I argue that anti-democratic structures and values have been embedded in philosophy of education through Plato's educational theory of techne and Rousseau's pedagogical theory that involves science and technology as important educational force. Following this theme, I analyze the work of John Dewey and Herbert Marcuse and their shared project for democratizing science and technology through education. Through a critical comparison of both theorists' models, I suggest that each provides positive legacies for philosophy of education to draw upon in rethinking the intersection of science, technology, and education: a strong model for understanding public problems associated with a highly technological and scientific society and a reconstructive framework for values and sensibilities that demands a new value relationship to be developed between humans and science and technology. Finally, I situate my critique and assessment of this history in the philosophy of education within the current science and technology education reform movement in the United States. I claim that the official models of science and technological literacy and inquiry, as constructed by the National Academy of Sciences and a host of governmental policies, shape science and technology education with a decidedly neo-liberal focus and purpose. In response to this anti-democratic movement I offer an alternative position that utilizes a counter-epistemology to the

Leading US nano-scientists' perceptions about media coverage and the public communication of scientific research findings

Science.gov (United States)

Corley, Elizabeth A.; Kim, Youngjae; Scheufele, Dietram A.

2011-12-01

Despite the significant increase in the use of nanotechnology in academic research and commercial products over the past decade, there have been few studies that have explored scientists' perceptions and attitudes about the technology. In this article, we use survey data from the leading U.S. nano-scientists to explore their perceptions about two issues: the public communication of research findings and media coverage of nanotechnology, which serves as one relatively rapid outlet for public communication. We find that leading U.S. nano-scientists do see an important connection between the public communication of research findings and public attitudes about science. Also, there is a connection between the scientists' perceptions about media coverage and their views on the timing of public communication; scientists with positive attitudes about the media are more likely to support immediate public communication of research findings, while others believe that communication should take place only after research findings have been published through a peer-review process. We also demonstrate that journalists might have a more challenging time getting scientists to talk with them about nanotechnology news stories because nano-scientists tend to view media coverage of nanotechnology as less credible and less accurate than general science media coverage. We conclude that leading U.S. nano-scientists do feel a sense of responsibility for communicating their research findings to the public, but attitudes about the timing and the pathway of that communication vary across the group.