Electronics Newsweekly back issues from September 2008:
Data on science detailed by G.V. Chucheva and co-authors.(Report)
Sep 03, 2008 ... "The oxide layer in nanotransistors with metal-oxide-semiconductor (MOS) structures may be as thin as 20 angstrom. The physical diagnostics of such structures via conventional methods of voltage-capacitance characteristics (VFCs) is impossible without taking into account the usually ...
New science findings from Sichuan University described.
Sep 03, 2008 ... According to recent research from Zigong, People's Republic of China, "Developing the expression for calculating the capacitance of an inclined plate capacitor is investigated." "From the result when the intersection line of the two planes containing the two electrodes ...
Research on science detailed by C.H. Lin and co-authors.
Sep 03, 2008 ... "This paper proposes a simple method for enhancing the separation efficiency of DNA biosamples in a capillary electrophoresis (CE) microchip by using high-voltage pulsed DC electric fields. A high-voltage amplifier is used to establish electric fields of up to 1 kHz to carry out CE ...
Researchers from University of Oviedo publish new studies and findings in the area of science.(Report)
Sep 03, 2008 ... "In this paper, the guidelines to design a high-voltage power converter based on the hybrid series parallel resonant topology, PRC-LCC, with a capacitor as output filter are established. As a consequence of the selection of this topology, transformer ratio, and therefore secondary volume, ...
New science study findings have been reported by M.S. Sodha and colleagues.(Report)
Sep 03, 2008 ... "In this paper the focusing/defocusing of (i) a single Gaussian electromagnetic beam and (ii) a number of coaxial Gaussian electromagnetic beams, propagating in the extraordinary mode along the Earths magnetic field in the ionosphere has been Investigated in the paraxial approximation. The ...
Reports outline science research from Shanghai Jiao Tong University.(Report)
Sep 03, 2008 ... According to a study from Shanghai, People's Republic of China, "The fracture of ceramic post insulators in substations is a very important factor which disturbs the normal working of high-voltage (HV) substations. Every year there are some serious grid accidents caused by the fracture of ...
Research data from A.V. Gordeev and colleagues update understanding of plasma physics.
Sep 03, 2008 ... According to recent research from Russia, "A previously developed method for describing vortex structures is used to construct electrostatic vortices in a plasma in an external magnetic field." "An equation for the radial electric field that gives rise to azimuthal electron ...
Research from W. Lee and co-researchers in the area of nanotechnology described.
Sep 03, 2008 ... According to recent research from Halle, Germany, "Ferroelectric materials have emerged in recent years as an alternative to magnetic and dielectric materials for nonvolatile data-storage applications(1-5). Lithography is widely used to reduce the size of data-storage elements in ...
Studies from K.V. Aleksandrov and co-researchers in the area of technical physics published.
Sep 03, 2008 ... According to recent research from Russia, "Experiments with a pulsed freely localized electrodeless microwave discharge in air under a pressure corresponding to the ascending branch of the pressure dependence of the breakdown field are described." "The discharge is initiated in ...
Researchers at Adam Mickiewicz University have published new data on semiconductors.
Sep 03, 2008 ... According to a study from Poznan, Poland, "We consider a model of a quantum dot (QD) in a semiconducting carbon nanotube, created by using a spatially limited electric potential, produced by a system of a few external elementary charges. Our main interest is in correlated states of a pair ...
Research from University of North Carolina yields new data on computational physics.(Report)
Sep 03, 2008 ... According to a study from the United States, "In this paper, we propose a new full vectorial generalized discontinuous Galerkin beam propagation method (GDG-BPM) to accurately handle the discontinuities in electromagnetic fields associated with wave propagations in inhomogeneous optical ...
Research from Hunan University provide new insights into applied surface science.
Sep 03, 2008 ... According to a study from Changsha, People's Republic of China, "p-Type ZnO: As films with a hole concentration of 10(16)-10(17) cm (3) and a mobility of 1.32-6.08 cm(2)/V s have been deposited on SiO2/Si substrates by magnetron sputtering." "XRD, SEM, Hall measurements are used ...
Scientists at Cukurova University, Medical Department describe research in science and technology.(Report)
Sep 03, 2008 ... "The aim of this study was to determine the effects of alternating magnetic field on the metabolism of the healthy and diabetic rats. The rats were divided into two experimental groups," researchers in Turkey report. "Magnetic fields of 5 and 8mT intensity was applied to the ...
Reports outline health physics study findings from G. Filippopoulos and colleagues.(Clinical report)
Sep 03, 2008 ... "In many practical cases human exposure to extremely low frequency magnetic fields with many spectral components (multi-frequency fields) has to be examined in order to check compliance with ICNIRP's guidelines. Showing compliance, according to existing methods, requires sophisticated ...
Research from M.H. Choi and co-researchers provides new data on automation science.(Report)
Sep 03, 2008 ... "A method to produce a desired current pattern in a multiple-source EIT system using voltage sources is presented. Application of current patterns to a body is known to be superior to the application of voltage patterns in terms of high spatial frequency noise suppression, resulting in ...
Research on chemical engineering detailed by scientists at University of Allahabad.
Sep 03, 2008 ... According to a study from Allahabad, India, "Increasing cost of the chemicals and production of toxic sludge in the Cr(VI) treatment methods have attracted attention toward the use of biosorbents for Cr(VI) removal. The present study evaluates a novel biosorbent derived from Cassia ...
Research from A. Bechar and co-authors in the area of electrostatics published.
Sep 03, 2008 ... According to a study from Bet Dagan, Israel, "When a charged cloud of pollen approaches and penetrates a blooming tree, it typically deposits more pollen on the outer flowers than on the inner ones. A method was developed to improve penetration of charged pollen through the tree layers, by ...
Reports from V. Janardhana et al highlight recent research in aerospace research.
Sep 03, 2008 ... "Development of low loss radio frequency micro-electro-mechanical (MEMS) phase shifters for radar and telecommunication applications is presented. Numerical simulation results using electromagnetic simulator tools (CST-Germany) along with fabricated wafer level measurement results of two ...
Research on electrochemical research detailed by F. Schroper and co-authors.
Sep 03, 2008 ... "Nanostructured surfaces have recently gained in importance for electrochemical applications because of an enhanced surface area compared to planar substrates. Due to this property, structured substrates are well suited for electrochemical (bio-)sensors, capacitive coupling with ...
Studies from University of Groningen describe new findings in coatings technology.(Report)
Sep 03, 2008 ... According to a study from Netherlands, "In this study, Ti-containing diamond-like carbon (Ti-DLC) coatings have been deposited on HNBR (hydrogenated nitrile butadiene) rubber and also on Si wafer as reference via unbalanced magnetroli reactive sputtering from a Ti target in C2H2/Ar plasma ....
Research data from A. Abubakar and colleagues update understanding of geophysics.
Sep 03, 2008 ... "We present 2.5D fast and rigorous forward and inversion algorithms for deep electromagnetic (EM) applications that include crosswell and controlled-source EM measurements. The forward algorithm is based on a finite-difference approach in which a multifrontal LU decomposition algorithm ...
Research conducted at P. Kreuter and co-authors has provided new information about optical physics.
Sep 03, 2008 ... According to recent research from Zurich, Switzerland, "A time-domain approach based on the finite difference time-domain (FDTD) method is described for vertical-extended-cavity surface-emitting lasers (VECSELs). To permit the simulation of realistic devices with large extended cavities a ...
Research data from O. Bottauscio and colleagues update understanding of magnetics.
Sep 03, 2008 ... According to recent research from Turin, Italy, "The paper proposes a numerical procedure for evaluating the geometrical and electromagnetic properties of the microstructure of a heterogeneous medium starting from the material effective characteristics." "The identification ...
New molecular engineering study findings have been reported from University of Alberta.
Sep 03, 2008 ... According to recent research published in the journal Macromolecular Materials and Engineering, "The morphological, electrical resistivity (ER), and electromagnetic interference (EMI) shielding effectiveness (SE) properties of poly(propylene) (PP), polystyrene (PS), PP/PS, and ...
Findings from University of Illinois broaden understanding of radio science.
Sep 03, 2008 ... "[1] We develop an efficient evaluation scheme for the singular Fourier coefficients in solving electromagnetic scattering by body of revolution (BOR). For the singular modal Green's function (MGF), the scheme first evaluates the integrals over generating arc segments analytically and then ...
Research data from R. Forsati and colleagues update understanding of computer science.(Report)
Sep 03, 2008 ... "The advent of various real-time multimedia applications in high-speed networks creates a need for quality of service (QoS) based multicast routing. Two important QoS constraints are the bandwidth constraint and the end-to-end delay constraint," scientists in Iran report. "The ...
Research reports on condensed matter from University of Bordeaux provide new insights.(Report)
Sep 03, 2008 ... "Triggered by the revival of multiferroic materials, a lot of effort is presently underway to find a coupling between a capacitance and a magnetic field," scientists writing in the Journal of Physics - Condensed Matter report. "We show in this paper that interfaces are the right ...
Researchers from University of Illinois publish new studies and findings in the area of numerical modelling.
Sep 03, 2008 ... "Multiscalets in the multiwavelet family are used as the basis and testing functions in Galerkin's method. Since the multiscalets are orthogonal to their translations under the Sobolev inner product, the resulting Galerkin's method behaves like a collocation method but possesses the ...
Research from F.A. Hussin and co-researchers in the area of information technology published.(Report)
Sep 03, 2008 ... According to recent research from Ikoma, Japan, "The IEEE 1500 standard wrapper requires that its inputs and outputs be interfaced directly to the chip's primary inputs and outputs for controllability and observability. This is typically achieved by providing a dedicated Test Access ...
Reports outline nuclear technology research from University of South Carolina.
Sep 03, 2008 ... "Composite nuclear fuel consisting of uranium carbide (UC) fuel microspheres dispersed in an inert matrix is one of the fuel forms being actively considered for use in gas-cooled fast reactors (GFRs). High-density UC electrodes were required for the production of fuel microspheres by the ...
Findings from A.K. Bakshi et al in radiation research reported.
Sep 03, 2008 ... "Response of thermoluminescence (TL) discs under different filter regions of a CaSO4:Dy based TL dosemeter system was simulated to high-energy photon beams in the energy range of 1.25 MeV to 24 MV (similar to 9 MeV). This was done using FLUKA Monte Carlo code and also experimentally ...
Research from University of Seville provides new data about fluids research.
Sep 03, 2008 ... According to a study from Seville, Spain, "Arrays of microelectrodes for pumping electrolytes in microchannels are currently under research. In this letter we demonstrate theoretically an enhancement in the performance of arrays of microelectrodes subjected to travelling wave potentials." ...
Investigators at Princeton University publish new data on astronomy.
Sep 03, 2008 ... "Large-scale structure deflects cosmic microwave background ( CMB) photons. Since large angular scales in the largescale structure contribute significantly to the gravitational lensing effect, a realistic simulation of CMB lensing requires a sufficiently large sky area," investigators in ...
Research from University of Belgrade yields new findings on photonics.
Sep 03, 2008 ... According to recent research from Serbia, "We have developed a model of current-voltage (I-V) characteristic for an ITO/PEDOT:PSS/MEH-PPV/Al photodetector." "The model is based on the solution of the continuity and drift-diffusion equation for hole polarons. Detailed analysis of ...
Reports summarize power systems research from S. Corsi and co-authors.
Sep 03, 2008 ... "This paper proposes a new voltage instability risk indicator based on local phasor measurements at fast sampling rate. The effectiveness of the indicator is analyzed at EHV load and ''transit'' buses," scientists in Milan, Italy report. "The risk criterion is based on the ...
Reports summarize applied optics study results from Heriot-Watt University.
Sep 03, 2008 ... According to a study from Scotland, "The high-speed optoelectronic memory system project is concerned with the reduction of latency within multiprocessor computer systems (a key problem) by the use of optoelectronics and associated packaging technologies. System demonstrators have been ...
Reports outline inorganic chemistry study results from University of Rajasthan.
Sep 03, 2008 ... According to a study from Jaipur, India, "A new class of unsymmetrical organotitanium(IV) and organozirconium(IV) complexes of biologically potent ligands derived from heterocyclic ketones and semicarbazide hydrochloride and 2-hydroxy-N-phenyl benzamide have been prepared by the microwave ...
Reports from S. Pandit et al highlight recent research in computer-aided design.
Sep 03, 2008 ... According to a study from Kharagpur, India, "This paper presents an exploration procedure for mapping given functional specifications of an analog system to the specification parameters of individual component blocks of the system topology. A meet-in-the-middle approach has been followed ...
Reports from P. Zhou et al highlight recent research in applied physics.
Sep 03, 2008 ... According to recent research from Harbin, People's Republic of China, "A rigorous theoretical model for In0.53Ga0.47As/InP single photon avalanche photodiodes operated in the Geiger mode is developed to calculate dark count probabilities over a wide range of temperatures and widths of ...
New planetary science research from Lulea University of Technology described.
Sep 03, 2008 ... According to recent research published in the Journal of Geophysical Research - Atmospheres, "183.31 GHz observations from the Advanced Microwave Sounding Unit B (AMSUB) instruments onboard the NOAA 15, 16, and 17 satellites were used to derive a new data set of Upper Tropospheric Humidity ...
Findings from Pennsylvania State University in physical chemistry reported.
Sep 03, 2008 ... "Microcrystals of potassium hydrogen hexaniobate (K1.8H2.2Nb6O17 center dot nH(2)O) and nanoscrolls derived from them were suspended in an aqueous solution of tetramethyl orthosilicate and then subjected to a static homogeneous 11.74 T magnetic field as the silicate solution formed a gel ....
New aerospace engineering study findings have been published by scientists at University of Minnesota.
Sep 03, 2008 ... "The performance of various carrier recovery loop architectures (phase lock loop (PLL), Doppler-aided PLL, frequency lock loop (FLL), and Doppler-aided FLL) in tracking weak GPS signals are analyzed and experimentally validated. The effects of phase or frequency detector design, oscillator ...
Research on control systems described by S. Banerjee and colleagues.(Report)
Sep 03, 2008 ... According to a study from Durgapur, India, "In this paper, design and implementation of an optimized controller for a single magnet-based electromagnetic levitation system (EMLS) where an electromagnet of 2.6-kg mass is levitated over a large gap under a fixed ferromagnetic guide-way has ...
Studies from H.C. Barshilia and co-researchers in the area of thin solid films published.
Sep 03, 2008 ... According to recent research published in the journal Thin Solid Films, "Spectrally selective TiAIN/TiAlON/Si3N4 tandern absorber was deposited on copper, glass, stainless steel, nickel and nimonic substrates using a reactive direct current magnetron sputtering system. In this tandem ...
Study results from Mansoura University update understanding of astrophysics.
Sep 03, 2008 ... According to a study from Egypt, "Nonlinear properties of the dust acoustic (DA) solitary waves in a dusty plasma consisting of negatively variable-charged dust particles, vortex-like distributed ions and two-temperature isothermal electrons are reported. A reductive perturbation theory ...
Research results from Central South University update knowledge of materials science.
Sep 03, 2008 ... "Intermetallic compound superconductor MgB2 Was synthesized from spherical magnesium powder and lower purity amorphous boron powder by microwave direct heating," investigators in Changsha, People's Republic of China report. "Powder X-ray diffraction (XRD) analysis' indicates ...
Reports outline organic research from University of Barcelona.
Sep 03, 2008 ... According to recent research from Barcelona, Spain, "Phosphine-free palladium nanoparticles were embedded in a fluorous organic-inorganic hybrid material 6b prepared by the sol-gel process." "The use of Pd-n.6b in the Heck coupling reaction under microwave irradiation has been ...
Research conducted at Rutgers University has provided new information about crop research.
Sep 03, 2008 ... "Protein extraction for two-dimensional gel electrophoresis (2-DE) from plant samples is challenging due to low protein content and high level of contaminants. Proteomic research in turfgrass is limited by the lack of efficient protein extraction methods," scientists in the United States ...
Report summarizes wireless communications study findings from Boise State University.(Report)
Sep 03, 2008 ... According to recent research from the United States, "In distributed wireless networks without centralized control, each user is its own authority to maximize its own performance. This distributed characteristic provides the users with the incentives of greedy competitions for the network ...
Studies from Deemed University provide new data on digital signal processing.
Sep 03, 2008 ... "This paper employs a digital signal processing (DSP) based frequency domain approach using wavelet multi-resolution analysis (MRA) to overcome difficulties such as fault inception angle, fault impedance and fault distance associated with conventional time domain approach employing voltage ...
Researchers from Zhejiang University detail new studies and findings in the area of vehicular technology.
Sep 03, 2008 ... "This paper proposes a cooperation strategy among rational nodes in a wireless cooperative relaying network as an effort to solve two basic problems, i.e., when to cooperate and how to cooperate. First, a symmetric system model comprising two users and an access point (AP) is presented," ...
Findings in physics reported from J.S. Zheng and co-researchers.
Sep 03, 2008 ... "high-gain wideband antenna, using the electromagnetic resonances of double Fabry-Perot (F-P) cavities, is proposed. The two cavities are excited by a patch antenna placed in the cavities on top of the ground plane," investigators in Harbin, People's Republic of China report. ...
New findings reported from National Cheng-Kung University describe advances in engineering.
Sep 03, 2008 ... "This paper describes the design of a traveling-wave ultrasonic motor (TWUSM) drive circuit, intended to simultaneously employ both driving frequency and phase modulation control. The operating principles and a detailed analysis of the proposed driving circuit, consisting of ...
New findings from Hashemite University in the area of analytical science described.
Sep 03, 2008 ... "Multi-channel gated-intensified cameras are commonly used for capturing images at ultra-high frame rates. The use of image intensifiers reduces the image resolution and increases the error in applications requiring high-quality images, such as digital image correlation," scientists in ...
New electrical engineering research from University of Pittsburgh outlined.(Report)
Sep 03, 2008 ... According to recent research from the United States, "A novel complex pulse forming technique has been developed using ultra wideband (UWB) frequency concepts where multiple carriers are modulated by the pulse width of the primary signal source. Specialized modulation of the pulse train ...
Research from O.A. Beg and co-authors reveals new findings on mechanical engineering.
Sep 03, 2008 ... According to recent research from Bradford, the United Kingdom, "We study theoretically and computationally the incompressible, non-conducting, micropolar, biomagnetic (blood) flow and heat transfer through a two-dimensional square porous medium in an (x,y) coordinate system, bound by ...
New food science findings from B.P. Salmanowicz and co-researchers published.(Report)
Sep 03, 2008 ... "Knowledge of the types and amounts of individual HMW glutenin subunits (HMW-GS) is important for predicting technological quality. In this study, 228 wheat doubled haploids were compared in respect of HMW-GS composition, seed protein content, flour yield, rheological properties of dough, ...
Findings from Chiba University provide new insights into applied materials science.
Sep 03, 2008 ... According to recent research from Chiba, Japan, "This article describes the origins of the width of the highest occupied molecular orbital (HOMO) state observed in the ultraviolet photoemission spectra (UPS) of thin organic semiconductor films. Although much research has been performed on ...
Research conducted at University of British Columbia, Medical Department has updated our knowledge about evolution.
Sep 03, 2008 ... "Mutations in HERG and KCNQ1 potassium channels have been associated with Long QT syndrome and atrial fibrillation, and more recently with sudden infant death syndrome and sudden unexplained death. In other proteins, disease-associated amino acid mutations have been analyzed according to ...
Scientists at University of California release new data on surface sciences.
Sep 03, 2008 ... According to recent research from the United States, "The formation mechanisms of polar and nonpolar interfaces were investigated by density-functional theory molecular dynamics simulations of the atomic structure of the a-Al2O3/Ge(100)(2 x 1) and a-ZrO2/Ge(100)(2 x 1) interfaces. The ...
Researchers from University of Colorado discuss findings in terrestrial physics.
Sep 03, 2008 ... According to a study from the United States, "Transformation of infrasound to magnetic Sound upon propagation from ground level up to the ionosphere is considered. It is shown that upon entering the ionospheric layers at altitudes of order 150-170 km, the wave dynamics changes sharply." ...
Research from V. Mahalingam and co-researchers in the area of very large scale integration systems described.(Report)
Sep 03, 2008 ... According to recent research from the United States, "Technology scaling in the nanometer era has increased the transistor's susceptibility to process variations. The effects of such variations are having a huge impact on the yield of the integrated circuits and need to be considered early ...
Study results from D.H. Kim and colleagues update understanding of electron devices.
Sep 03, 2008 ... "We report on InAs pseudomorphic high-electron mobility transistors (PHEMTs) on an InP substrate with record cutoff frequency characteristics. This result was achieved by paying attention to minimizing resistive and capacitive parasitics and improving short-channel effects, which play a ...
Data on microelectronics described by Y. Liu et al.
Sep 03, 2008 ... "This paper studies the numerical simulation method for electromigration in IC device and solder joint in a package under the combination of high current density, thermal load and mechanical load. The three dimensional electromigration finite element model for IC device/interconnects and ...
Reports on solid-state circuits findings from J.J. Nahas and co-researchers provide new insights.
Sep 03, 2008 ... "A 180 Kbit magnetoresistive random access memory (MRAM) organized as 22 bits by 8 Kwords has been developed for embedding in a 0.28 micron CMOS process. The memory cell is based on a 1-transistor 1-magnetic tunnel junction (1T1MTJ) bit cell with a toggle MTJ," scientists in the United ...