Electronics Newsweekly back issues from May 2009:
Research reports on science from D.V. Bychkov and colleagues provide new insights.
May 06, 2009 ... "Electric discharge in a supersonic air jet is studied. It is ignited in a linearly polarized quasi-optical microwave electromagnetic beam the initial field intensity of which is much lower than the breakdown level," investigators in Russia report. "Electric breakdown is ...
New science research reported from Tianjin Polytechnic University.
May 06, 2009 ... "A ferrocene-labeled high molecular weight cofactor derivative (PEI-Fc-NAD) was prepared by attaching both ferrocene and nicotinamide adenine dinucleotide (NAD(+)) to a water soluble polyelectrolyte, polyethylenimine (PEI). Approximately 9.8% and 2.9% of all the primary amino groups of PEI ...
New science research from Z.G. Xiao and co-researchers described.(Report)
May 06, 2009 ... "Electromagnetic band-gap (EBG) structures have unique properties in controlling the propagation of electromagnetic wave and have been applied to a wide range of electromagnetic devices design. In this paper, a double-sided printed dipole (DSPD) array backed by an EBG reflector is proposed ...
Studies in the area of automation science reported from Zhejiang University of Technology.
May 06, 2009 ... "There is an unavoidable tradeoff between the control performance and the quality of service in networked control systems with resource constraints. To address the impact of network resources availability oil requirement of bandwidth (RoB) and quality of control (QoC), an intelligent ...
Studies from M.T. Chen and co-researchers yield new data on astronomy.(Report)
May 06, 2009 ... According to recent research from Taipei, Taiwan, "The Y. T. Lee Array for Microwave Background (AMiBA) has reported the first results on the detection of galaxy clusters via the Sunyaev-Zel'dovich effect. The objectives required small reflectors in order to sample large-scale structures ...
Study findings on aircraft are outlined in reports from Cornell University.
May 06, 2009 ... According to a study from the United States, "Unmanned aerial vehicles typically have limited flight duration, particularly at smaller scales. A microwave-/solar-powered flight vehicle, on the other hand, can remain in theater continuously by harvesting electromagnetic radiation using ...
Research from Kyoto University has provided new data on physical chemistry.
May 06, 2009 ... "The anomalous chemical wave propagation of an unstirred Belousov-Zhabotinsky (BZ) reaction was observed under exposure to a gradient static magnetic field (SMF). The gradient SMF effect on the BZ reaction was investigated by increasing the thickness of the BZ medium up to 0.9 mm under the ...
Recent findings from E.A. Dawson and co-authors highlight research in analytical science.
May 06, 2009 ... "This article describes a system to investigate the parameters for the remediation of organic vapors using microwave-induced plasma on fluidized carbon granules. The system is based on a single mode microwave apparatus with a variable power (2.45 GHz) generator," scientists in ...
New findings from University of Rome in the area of structural engineering described.
May 06, 2009 ... "This article deals with evaluation of the seismic vulnerability of a high-voltage vertical disconnect switch, one of the most vulnerable elements of electric substations. The main objective of the research is to evaluate the seismic fragility of the apparatus using a new effective ...
New solar physics study results from V.M. Bogod et al described.
May 06, 2009 ... According to recent research from Russia, "On the basis of our multiwavelength observations made with the one-dimensional RATAN-600 radio telescope, we study the inversion of the circular polarization in the solar microwave emission at different frequencies. The inversion is detected in ...
Research on physics reported by M.V. Budantsev et al.
May 06, 2009 ... "Effect of an in-plane magnetic field on the features of the magnetoresistance of a narrow conducting channel placed in the bath of a macroscopic two-dimensional electron gas has been studied. These features are manifested in the hysteretic behavior of the magnetoresistance in the quantum ...
Research from Y. Roman et al broadens understanding of veterinary medicine.(Report)
May 06, 2009 ... According to recent research from France, "Although plasma protein electrophoresis is an invaluable diagnostic tool in avian medicine, high inter-taxonomic variations sometimes make their interpretation difficult for practitioners. The purpose of this study was to improve global ...
Research from Texas A&M University provides new data on flow turbulence and combustion.
May 06, 2009 ... "The effect of an external magnetic field on the evolution of rectangular plasma jets is examined. Specifically investigated is the influence of a primarily axial magnetic field on the uniquely characteristic axis-switching phenomenon of rectangular jets and flow instabilities," ...
Research from M. Ganesh et al broadens understanding of algorithms.
May 06, 2009 ... "We describe a fully discrete high-order algorithm for simulating multiple scattering of electromagnetic waves in three dimensions by an ensemble of perfectly conducting scattering objects. A key component of our surface integral algorithm is high-order tangential approximation of the ...
Research from Hubei Normal University in microchemical research provides new insights.
May 06, 2009 ... "Magnetic carbon-coated iron nanoparticles were used to immobilize horseradish peroxidase on the surface of a polythionine modified glassy carbon electrode in combination with chitosan and cross-linking of glutaraldehyde. The electrochemical character of this enzyme electrode and its ...
Study results from Yildiz Technical University provide new insights into computer-aided design.
May 06, 2009 ... "The axisymmetric longitudinal wave propagation in a finite pre-strained compound (composite) cylinder is investigated within the scope of a piecewise homogeneous body model utilizing three-dimensional linearized theory wave propagation in an initially stressed body. The materials of the ...
Researchers from University of Cologne report details of new studies and findings in the area of geophysics.
May 06, 2009 ... "The ability to determine the cloud boundaries and vertical distribution of cloud liquid water for single-layer liquid clouds using zenith-pointing microwave radiometers is investigated. Simulations are used to demonstrate that there is little skill in determining either cloud base or ...
Research from University of Zurich in the area of nanoscience published.
May 06, 2009 ... According to a study from Zurich, Switzerland, "Lysozyme (14.4 kDa), BSA (66.4 kDa) and beta-galactosidase (116 kDa) were successfully separated and determined directly within 80 seconds using a laboratory-made miniaturized capillary electrophoresis apparatus provided with a confocal ...
Research findings from S. Singh et al update understanding of optical research.
May 06, 2009 ... According to a study from Sangrur, India, "By utilization of optimized semiconductor optical amplifiers, the design of ring network is achieved for a large number of nodes with reasonable quality and zero power penalty." "The gain fluctuation occurs due to variation in ...
Research data from H. Abbastabarahangar and colleagues update understanding of inclusion phenomena and macrocyclic chemistry.
May 06, 2009 ... According to recent research from Iran, "A new chemically modified carbon paste electrode for Cd(II) ions based on 3,5-dinitro-N-(tri-2-pyridyl methyl) benzamide (DNTPMBA) as an ionophore was prepared. The electrode exhibits a Nernstian response for Cd(II) ions over a wide concentration ...
Reports from University of Mumbai add new data to research in organic research.
May 06, 2009 ... According to recent research from Bombay, India, "Nitrophen is a wlidely used herbicide which is commonly produced by an energy intensive process using high temperature and pressure. In the current work, nitrophen is synthesized by using PEG-400 as a phase transfer catalyst in a ...
Research from G. Engel and co-researchers provides new data on environmental research.
May 06, 2009 ... "Our work studied the effect of selected organometallic chloride compounds oil electrical properties of membrane, in the form of hydrophilic filters impregnated with lauric acid. The presence of the compounds in the membrane surroundings induced a quick increase of the membrane voltage ...
Reports from S. Vandenbrouck et al highlight recent research in electron devices.
May 06, 2009 ... According to recent research published in the journal IEEE Electron Device Letters, "GaN/AlN/AlGaN/GaN nanowire metal-insulator-semiconductor field-effect transistors (MISFETs) have been fabricated for the first time with submicrometer gate lengths." "Their microwave ...
Research findings from Y.B. Cheng et al update understanding of photonics.
May 06, 2009 ... According to a study from Beijing, People's Republic of China, "A 40-Gb/s monolithically integrated transmitter containing an InGaAsP multiple-quantum-well electroabsorption modulator (EAM) with lumped electrode and a distributed-feedback semiconductor laser is demonstrated." ...
Reports from University of Iowa advance knowledge in computer graphics.
May 06, 2009 ... "Caustic maps provide an interactive image-space method to render caustics, the focusing of light via reflection and refraction. Unfortunately, caustic mapping suffers problems similar to shadow mapping: aliasing from poor sampling and map projection as well as temporal incoherency from ...
New findings from V.P. Zubov and co-authors in the area of general chemistry published.
May 06, 2009 ... "The synthesis of composite sorbents from porous silica modified by polyvinyl alcohol was studied. The initial silica retained its porosity after modification which was performed by application of polyvinyl alcohol from aqueous solution," scientists writing in the Russian Journal of ...
Reports outline nanotechnology study findings from Leiden University.
May 06, 2009 ... "A new method for extracting quantitative data from amplitude modulation dynamic force-distance measurements is developed," researchers in Netherlands report. "The method is based on the harmonic oscillator model of vibrating atomic force microscope cantilevers, and is capable ...
Investigators at Yonsei University target vehicular technology.
May 06, 2009 ... According to a study from Seoul, South Korea, "Various approaches to analyze handover have been developed to guarantee the quality of service of multimedia services over mobile communication networks. However, no framework for multicarrier-based broadband systems, e.g., multicarrier ...
Study results from University of Leeds in the area of mathematics published.
May 06, 2009 ... According to recent research from Leeds, the United Kingdom, "We consider the linear stability to three-dimensional perturbations of two-dimensional nonlinear magnetohydrodynamic basic states obtained from a specified forcing function in the presence of an imposed initially uniform ...
New solid state chemistry study findings have been reported from R.G. Delatorre et al.
May 06, 2009 ... "Iron oxide layers were obtained by electrodeposition method on Cu substrates. The electrolyte containing Fe-2(SO4)(3), NaOH, and Triethanolamine was stirred at a temperature of 65 A degrees C and the depositions were performed potentiostatically in a conventional three electrode cell at a ...
Research from University of Miami in the area of veterinary research published.
May 06, 2009 ... In this recently published article, scientists in the United States conducted a study "To evaluate the usefulness of an antibody detection ELISA and protein electrophoresis (PE) for diagnosing Encephalitozoon cuniculi (ECUN) infection in pet rabbits. Animals-203 pet rabbits ....
Investigators at University of Tokyo zero in on chemical physics.
May 06, 2009 ... According to a study from Tokyo, Japan, "Pure rotational spectra of the CCCCl radical in a supersonic jet have been observed for the first time by Fourier-transform microwave spectroscopy. The radical was produced by a pulsed electric discharge in a C2H2 and CCl4 mixture diluted to 0.3% ...
New food science study findings have been reported by researchers at Department of Agriculture.
May 06, 2009 ... "Comparative genome indexing (CGI) using whole-genome DNA microarrays was evaluated as a means of genotyping Campylobacter jejuni relative to two standard methods, pulsed-field gel electrophoresis (PFGE) and flaA short variable region sequencing (flaA SVR typing). Thirty-six geographically ...
Reports from Tsinghua University add new data to research in circuits research.(Report)
May 06, 2009 ... "A 1.41-1.72 GHz fractional-N phase-locked loop (PLL) frequency synthesizer with a PVT insensitive voltage-controlled oscillator (VCO) is presented. In this PLL, a VCO with process, voltage, and temperature (PVT) insensitive bias circuit, and a divided-by-7/8 prescaler with improved ...
Data on computational mathematics detailed by J.C. Misra and co-authors.(Report)
May 06, 2009 ... According to a study from Kharagpur, India, "Of concern in this paper is an investigation of biomagnetic flow of a non-Newtonian viscoelastic fluid over a stretching sheet under the influence of an applied magnetic field generated owing to the presence of a magnetic dipole. The ...
New findings from University of Fribourg in the area of materials science published.
May 06, 2009 ... According to recent research from Fribourg, Switzerland, "The recent observation of superconductivity with critical temperatures (T-c) up to 55 K in the pnictide RFeAsO1-xFx, where R is a lanthanide, marks the first discovery of a non-copper-oxide-based layered high-T-c ...
New crystallography data have been reported by H.P. Hinov and co-authors.
May 06, 2009 ... "The flexo-dielectric behaviour of a homeotropic MBBA nematic layer has been experimentally studied. Asymmetric strong-weak anchoring of the homeotropic nematic layer was achieved by treating the glass plates - one of them with lecithin ensuring the strong anchoring and the other with ...
Reports on planetary science findings from R.P. Sharma and co-researchers provide new insights.
May 06, 2009 ... "We have investigated the nonlinear interaction between inertial Alfven waves and ion-acoustic waves by numerical simulation and showed that the system becomes more chaotic and turbulent as it evolves. The nonlinear dynamical equation satisfies modified Zakharov type of equations by taking ...
Reports summarize earth sciences research from Johns Hopkins University.
May 06, 2009 ... "Precursors to extreme geomagnetic field changes are examined in a numerical dynamo with a reversing dipolar magnetic field. A dynamo model with compositional convection in a rotating spherical shell produces a strongly dipolar external magnetic field over 6 Myr of simulated paleomagnetic ...
Study findings from M. Tribeche et al broaden understanding of plasma physics.
May 06, 2009 ... "The recent analysis of large-amplitude solitary potentials in a charge varying dusty plasma with trapped dust particles (Tribeche, M. 2005 Phys, Plasmas 12, 072304) is extended to include the electron trapping self-consistently. The non-isothermal trapped electron charging is investigated ...
Investigators at National Chiao Tung University have published new data on applied lasers and optics.
May 06, 2009 ... "The optical properties of InGaN multi-quantum-well laser diodes with different polarization-matched AlInGaN barrier layers have been investigated numerically by employing an advanced device simulation program," researchers in Hsinchu, Taiwan report. "The use of quaternary ...
Research from University of Leeds yields new data on applied optics.(Report)
May 06, 2009 ... According to a study from Leeds, the United Kingdom, "In this paper we present a novel approach to obtain interference phase measurements using sinusoidal modulation in order to obtain high resolution data at high temporal bandwidths. The use of classical phase stepping techniques ...
New molecular nutrition study findings have been reported by scientists at National Chung-Hsing University.
May 06, 2009 ... According to recent research from Taichung, Taiwan, "Resveratrol (3,5,4'-trihydroxystilbene) is a natural polyphenol that presents various physiological activities. It has been reported that the methylated derivatives of resveratrol show better potential antifungal and antiproliferative ...
New findings from University of Maryland in the area of fluorescence published.
May 06, 2009 ... "We demonstrate the influence of electrical current on the ability of surface plasmons to amplify fluorescence signatures," investigators in the United States report. "An applied direct current across Silver Island Films (SIFs) of low electrical resistance perturbs the ...
Study results from A. Sorokin and colleagues in the area of technical physics published.
May 06, 2009 ... According to recent research from Russia, "This work pursues investigations into the discharge with a cathode plasma in a cavity one wall of which is an insulating plate with a hole D in diameter (the cavity is 0.5 or 1.5 mm wide). This discharge is thoroughly analyzed in comparison with ...
Study results from J.M. Chauveau et al provide new insights into microelectronics.
May 06, 2009 ... According to a study from Valbonne, France, "Zinc oxide (ZnO) has recently attracted considerable attention because of its unique physical properties and its potential applications in the blue and UV spectral range. Up to now, ZnO-based heterostructures have mostly been grown in a ...
Data on computational electromagnetics reported by researchers at University of Granada.(Report)
May 06, 2009 ... "This paper proposes a modification of the hybrid Taguchi-genetic algorithm (HTGA) for solving global numerical optimization problems with continuous variables. The HTGA is a method that combines a conventional genetic algorithm (CGA), which has a powerful global exploration capability, ...
Findings from S. Reich and co-authors provide new insights into superconductivity.
May 06, 2009 ... 'Magnetic susceptibility measurements of WO3 crystals hydrogen doped on the surface suggest 2D local non-percolated superconductivity with an onset temperature of 120 K. Observed zero field cooled vs. field cooled magnetization response is characteristic of type II superconductivity. The ...
New findings from S. Mihaljevic and co-authors describe advances in science.
May 06, 2009 ... "In vitro propagation of Epimedium alpinum L. was carried out using immature seed explants. The effects of various concentrations of thidiazuron (TDZ) and 1-(2-chloro-4-pyridyl)-3-phenylurea (CPPU), on the induction of organogenic callus, were evaluated," scientists writing in the journal ...
Research from S. Kocsardi and co-authors in the area of signal processing published.
May 06, 2009 ... According to recent research from Veszprem, Hungary, "Computational fluid dynamics (CFD) is the scientific modeling of the temporal evolution of gas and fluid flows by exploiting the enormous processing power of computer technology. Simulation of fluid flow over complex-shaped objects ...
Research from X.J. Guo and colleagues has provided new data on electron devices.
May 06, 2009 ... According to a study from Cambridge, the United Kingdom, "Due to the low mobility and the abundance of (rap states in organic field-effect transistors (OFETs), the operation of conventional logic circuits-based OFETs needs a large voltage swing, and suffers large switching noise and low ...
Fujitsu and Cisco Extend IP Networking Partnership with Development of Bandwidth-Efficient HD and SD Video Contribution System.
May 06, 2009 ... Fujitsu and Cisco have collaborated on the creation of a highly-efficient video contribution system for use over IP or satellite infrastructures. Designed to help service providers maintain high levels of video quality at lower bandwidths, the system delivers breakthrough low-latency ...
Latin America Telecom Insider / Vol. 1, No 1, Edition 4 - Upcoming 3G/WiMAX Auctions to Trigger a Broadband Access Revolution in Latin America.
May 06, 2009 ... Research and Markets (http://www.researchandmarkets.com/research/323e7d/latin_america_tele) has announced the addition of the "Latin America Telecom Insider / Vol. 1, No 1, Edition 4 - Upcoming 3G/WiMAX Auctions to Trigger a Broadband Access Revolution in Latin America" report to their ...
Researchers at Wroclaw University publish new data on microelectronics.
May 06, 2009 ... "We study theoretically selected aspects of the collective interaction between two coupled quantum dots (QDs) forming a quantum dot molecule (QDM) and the modes of the electromagnetic field, as manifested in the optical response of QDMs under various experimental conditions," researchers ...
Studies from University of Alabama have provided new data on science.
May 06, 2009 ... According to recent research from the United States, "We discuss the asymmetry of the major heliospheric discontinuities obtained from the analysis of three-dimensional modeling of the solar wind interaction with the local interstellar medium (LISM). The flow of charged particles is ...
Studies from S.V. Sorokin et al provide new data on mathematics.(Report)
May 06, 2009 ... According to recent research from Aalborg, Denmark, "Helical springs serve as vibration isolators in virtually any suspension system. A variety of theories to describe the dynamic behaviour of these structural elements, which involves interaction of flexural, torsion and longitudinal ...
Retrevo Launches CE Defense Shield for Mother Earth.
May 06, 2009 ... Retrevo, the matchmaking service for people and electronics, today launched a multi-front campaign to address consumers' mistrust and lack of education about green consumer electronics which a recent survey revealed is hindering use and purchase of environmentally-friendly products. ...
NXP to Integrate Adobe Flash Platform for the Digital Home into Its STB Platforms.
May 06, 2009 ... NXP Semiconductors, the independent semiconductor company founded by Philips, announced support for the Adobe® Flash® Platform for the Digital Home. The optimized implementation of Flash technology for Internet connected televisions, set-top boxes (STB), Blu-ray players and other ...
Studies by R. Sharma and co-authors describe new findings in microelectronics.
May 06, 2009 ... According to recent research from Erlangen, Germany, "We report the onset of lasing from an electrodynamically trapped ZnO tetrapod. Each of the four legs of such an isolated tetrapod behaves as a single nanowire. where light is guided along the length of the wire and the necessary ...
Studies from University of Liege further understanding of superconductivity.
May 06, 2009 ... According to recent research from Liege, Belgium, "We use macroscopic holes drilled in a bulk YBCO superconductor to probe its magnetic properties in the volume of the sample. The sample is subjected to an AC magnetic flux with a density ranging from 30 to 130 mT and the flux in the ...
Research from University of Massachusetts reveals new findings on microelectronics.
May 06, 2009 ... "The complete answer to the question posed by the title of this paper requires a detailed explanation. The conceptual design of the pseudomorphic high electron mobility (p-HEMT) structure is based on 2D electron gas transport and, therefore, a HEMT is expected to manifest quantization at ...
Study results from Nanjing University update understanding of circuits research.
May 06, 2009 ... "This brief considers the problem of fault detection (FD) for a class of nonlinear networked control systems (NCSs) in which the sensors and actuators of the plant exchange information with a remote controller via a shared communication medium. Under the model utilized here, the ...
A2iA's Latest Software Release Further Automates Document- and Check-Processing.
May 06, 2009 ... A2iA (Artificial Intelligence and Image Analysis), a software company dedicated to handwritten and machine printed text recognition, information extraction and intelligent document classification, announced enhancements to its core recognition engines. Capable of automatically classifying ...
Data from Southwest Jiaotong University provide new insights into superconductivity.(Report)
May 06, 2009 ... According to recent research published in the Journal of Superconductivity and Novel Magnetism, "The loading capacity of the high temperature superconducting (HTS) maglev vehicle is closely relative to the maglev characteristics of the HTS bulk under the load. The investigation of the ...
Websites Offer Best Prices for Old Electronics.
May 06, 2009 ... Forrest Johnson of Houston had an old broken computer and tried to sell it for some extra cash. He had no luck with selling it locally and then turned to www.cashforlaptops.com. One week later, he had a check in hand for $175. When he contacted Cash for Laptops for a quote, he ...