Electronics Newsweekly back issues from October 2008:
Research on science described by scientists at University of Minnesota.
Oct 01, 2008 ... According to a study from the United States, "This paper presents a systematic design flow for optimal capacitance assignment in switched-capacitor biquad circuits. The proposed design flow starts with a biquad template configuration, which is defined based on circuit regularity." ...
Study results from Northern Illinois University provide new insights into science.
Oct 01, 2008 ... "PINE instruments offers a disposable electrode for cyclic voltammetry. We were able to demonstrate that the electrode can be used repeatedly," researchers in the United States report. "In instructional setting it was used for a week. Up to 6000 voltammetric cycles in potassium ...
Findings from Ohio State University in science reported.
Oct 01, 2008 ... "Fifteen food powders were coated on aluminum targets at 0, + 25, and -25 kV using corona electrostatic coating at 20% to 80% relative humidity (RH). The effect of RH on 3 losses, that is, targeting loss, coating loss, and transportation loss, which contribute to coating efficiency, was ...
Research on science described by H. Fujiki and colleagues.
Oct 01, 2008 ... According to recent research from Tsukuba, Japan, "A new ac-dc comparator system of 20-1000 V has been developed at the National Metrology Institute of Japan (NMIJ) for the calibration of ac-dc thermal voltage converters (TVCs), which are used as national ac-dc transfer standards. The ...
Findings from Pohang University of Science and Technology advance knowledge in nonlinear research.
Oct 01, 2008 ... "A numerical simulation method is developed to analyze the dynamic responses of electrostatic actuators, which are electromechanically-coupled systems. The developed method can be used to determine the dynamic responses of cantilever-type switches, which are an example of typical MEMS ...
Studies from H.P. Yin et al further understanding of mechanical engineering.(Report)
Oct 01, 2008 ... According to recent research from Champs-Sur-Marne, France, "Using the well-known bandwidth formula and the half power bandwidth formula [R.E.D. Bishop, G.M.L. Gladwell, An investigation into the theory of resonance testing, Philosophical Transactions of the Royal Society of London A 255 ...
Reports outline vacuum technology study findings from Hokkaido University.
Oct 01, 2008 ... "Admittance behavior of high-k GaAs metal-insulator-semiconductor (MIS) capacitors having an ultrathin SiNx/Si interface control double layer has been investigated in detail. The measured admittance showed characteristic features that are difficult to explain by the standard Si ...
Recent findings from University of California highlight research in macromolecular research.(Report)
Oct 01, 2008 ... According to a study from the United States, "Bandgap and molecular energy level control are of great importance in improving photovoltaic properties of conjugated polymers. A common approach to tuning these parameters is to modify the structure of conjugated polymers by copolymerizing ...
New findings from L. Ekonomou and co-researchers in the area of electrical power described.
Oct 01, 2008 ... "The design of transmission lines is often the key issue for the existence or absence of failures caused by lightning. Detailed engineering studies are Usually performed by electric power utilities for the design of new transmission lines," scientists in Athens, Greece report. ...
Research in the area of chemical research reported from W.S. Huang and colleagues.
Oct 01, 2008 ... According to recent research published in the journal Bulletin of the Korean Chemical Society, "The acetylene black (AB) was dispersed into water in the presence of dihexadecyl hydrogen phosphate (DHP) via ultrasonication, resulting in a stable and well-distributed AB/DHP suspension. After ...
Investigators at Southwest University have published new data on bioanalytical chemistry.
Oct 01, 2008 ... "This work describes the development and fabrication of a selective polymeric membrane electrode for iodide ion based on a metallophthalocyanin complex with a titanium(IV) atom at the center (as an oxo-titanium, Ti=O, group), phthalocyaninatotitanium(IV) oxide (PcTiO), as a sensing ...
Data on biomedical engineering reported by researchers at University of Missouri.
Oct 01, 2008 ... According to a study from the United States, "Carbon electrodes are widely used in electrochemistry due to their low cost, wide potential window, and low and stable background noise. Carbon-fiber electrodes (CFE) are commonly used to electrochemically measure ''quantal'' catecholamine ...
Findings in applied physics reported from L.A. Illoul and co-researchers.
Oct 01, 2008 ... "Efficient numerical models have been already developed in 2D to take into account the movement of electromagnetic devices with rotating parts in the framework of the Finite Element Method (FEM). When the movement becomes complex it leads to large mesh distortions," investigators in Paris, ...
Reports summarize polymer research research from S.A. Vshivkov and co-authors.
Oct 01, 2008 ... "LC transitions occurring in mixtures of cyanoethyl cellulose with DMAA or DMF and hydroxypropyl cellulose with ethanol, DMAA, or water in the presence and absence of magnetic field have been studied. With an increase in the polarity of solvent molecules and a decrease in the molecular ...
Data on oil and gas research discussed by researchers at University of Foggia.
Oct 01, 2008 ... According to a study from Foggia, Italy, "The aim of this work was to evaluate and compare the effects of conventional (hot air) and microwave drying on the lipid oxidation of stuffed pasta. Experiments were carried out on the pasta type ravioli dried by conventional and microwave ...
Study data from Iowa State University provide new insights into vibration and acoustics.
Oct 01, 2008 ... "In this article, an inversion-based feedforward control approach to achieve broadband active-noise control is investigated. Broadband active-noise control is needed in many areas, from heating, ventilation and air conditioning (HVAC) ducts to aircraft cabins," scientists in the United ...
Scientists at University of Minnesota target microelectromechanical systems.(Report)
Oct 01, 2008 ... According to recent research published in the Journal of Microelectromechanical Systems, "In this paper, we report a new flexible capacitive tactile sensor array with the capability of measuring both normal and shear force distribution using polydimethylsiloxane (PDMS) as a base material ....
Scientists at University of Leeds target microwave research.(Report)
Oct 01, 2008 ... According to a study from Leeds, the United Kingdom, "A novel electronically reconfigurable microwave bandpass filter based on a switched delay-line approach is presented. In contrast to conventional tunable filters, the approach enables the lossy and nonlinear switching elements to be ...
Research reports on sensor research from S. Tudisco and colleagues provide new insights.
Oct 01, 2008 ... According to recent research from Catania, Italy, "Design and characterization of a new generation of single-photon avalanche diodes (SPAD) array, manufactured by ST-Microelectronics in Catania, Italy, are presented. Device performances, investigated in several experimental conditions and ...
New chemical physics findings from A.T. Fenley and co-authors described.
Oct 01, 2008 ... According to recent research published in the Journal of Chemical Physics, "Analytical approximations to fundamental equations of continuum electrostatics on simple shapes can lead to computationally inexpensive prescriptions for calculating electrostatic properties of realistic molecules ....
Report summarizes plasma chemistry study findings from University of Cordoba.(Report)
Oct 01, 2008 ... According to a study from Cordoba, Spain, "We examined the influence of the gas flow-rate, microwave power and trichloroethylene concentration on the destruction of trichloroethylene with a system based on a microwave helium plasma operating at atmospheric pressure." "Based on ...
Research on engineering mathematics discussed by S. Grandison and co-researchers.
Oct 01, 2008 ... According to a study from the United States, "The formation of nonlinear axisymmetric waves on inviscid irrotational liquid jets in the presence of radial electric fields is considered. Gravity is neglected but surface tension is considered." "Electrohydrodynamic waves of ...
Studies from University of Pittsburgh add new findings in the area of science and technology.(Report)
Oct 01, 2008 ... "The content of a bacterial consortium found on an electron beam (e-beam) Pt-deposited electrode in a mediator-less microbial fuel cell (MFC) using glucose and glutamate as fuel is reported in this paper. The e-beam Pt-deposited electrode and electrochemically active bacteria (EAB) ...
Studies in the area of analytical science reported from Yazd University.
Oct 01, 2008 ... "Electrocatalytic oxidation of ascorbic acid (AA) at a carbon paste electrode, chemically modified 2,2'-[3,6-dioxa-1,8-octanediylbis(nitriloethylidyne)]-bis-hydroquinone, was thoroughly investigated. The results of cyclic voltammetry, double potential-step chronoamperometry, linear sweep ...
Study data from A. Pozwolski and co-authors update knowledge of aerospace research.
Oct 01, 2008 ... According to recent research published in the journal Acta Astronautica, "A propulsion system using the electromagnetic repulsion between two parallel conductors, carrying in opposite directions high currents, is considered." "Very high velocities above 70 000 m/s. are expected, ...
New superconductivity research from S.Y. Yin et al outlined.
Oct 01, 2008 ... 'Cryogenic molecular beam experiments show that the ferroelectric dipole moments of small niobium clusters with an even number of valence electrons n are typically greater than those with odd n. This is verified in alloy clusters Nb (N) X (M) where X=Al, Au, O, Mn, Fe, and Co; N<= 100;M <= ...
Studies from Y. Utsumi et al further understanding of nanosystems.
Oct 01, 2008 ... "We proposed and fabricated an integrated structure of microchannels consists of three different functional PMMA layers for post-genome analysis, gene diagnosis, and screenings of useful materials for pharmaceutical. This integrated structure with 96 microchip capillary electrophoresis ...
Research reports from Y.V. Glagolevskij and co-authors provide new insights into astrophysics.(Report)
Oct 01, 2008 ... "This is the final paper on a study of the magnetic field structure of CP stars with long rotation periods. It is first demonstrated that the orientation and strength of the magnetic field have no effect on their rotation velocity," investigators in Russia report. "The ...
Studies by L. Piekarasady and co-authors describe new findings in applied magnetic resonance research.
Oct 01, 2008 ... According to a study from Poznan, Poland, "Experiments on thin MgB2 films synthesized by ion implantation followed by hydrogen-plasma pulse treatment or annealing the sample at a given temperature in a furnace were undertaken. Superconducting properties were examined by magnetically ...
New education study findings have been reported by T.A. Hudson and co-researchers.
Oct 01, 2008 ... "This paper investigates the impact of teaching the behavior of analog circuits before proceeding to the formal, mathematical analysis, with the goal of improving student confidence with analog circuits. The behavioral analysis of two circuits is presented to show the level of detail ...
New multimedia study findings have been published by scientists at Indiana University.(Report)
Oct 01, 2008 ... According to recent research published in the journal Multimedia Tools and Applications, "In this paper, an adaptive framework for video streaming over the Internet is presented. The framework is a joint design of packet scheduling and rate control with optimal bandwidth resource ...
Researchers from Nagoya University detail findings in electrophoresis.
Oct 01, 2008 ... According to recent research from Nagoya, Japan, "We demonstrated a highly sensitive double-fluorescent dye staining in microchip electrophoresis (ME) for analysis of milk proteins. The detection sensitivity of ME was very limited so far and needed improvement." "Our staining ...
New research on planetary science from Al-Quds University summarized.
Oct 01, 2008 ... "A comparison has been made between the results of three different wave-particle interactions models, RCC model, Bouhram model, and Barghouthi model. These models have been used for investigating the H+ and O+ ion outflows at high altitudes equatorward of the cusp, and their simulation ...
Research from P. Palacios and co-researchers yields new findings on thin solid films.
Oct 01, 2008 ... According to a study from Madrid, Spain, "In this work, we present frozen phonon and linear response ab-initio research into the vibrational properties of the CuGaS2 chalcopyrite and transition metal substituted (CuGaS2)M alloys. These systems are potential candidates for developing a ...
Research conducted at Nanjing University has updated our knowledge about condensed matter.
Oct 01, 2008 ... According to a study from Nanjing, People's Republic of China, "We study the influence of coupling between two concentric nanorings, embedded in two different layers separated by an insulating barrier, on the exciton's energy levels by the attractive Fermionic Hubbard model. The hopping ...
Researchers at Simon Fraser University publish new data on data mining.
Oct 01, 2008 ... "The objective of this paper is to use a challenging real-world problem to illustrate how a probabilistic predictive model can provide the foundation for decision-analytic feedforward control. Commercial data mining software and sales data from a market research firm are used to create a ...
New geomechanics research has been reported by P. Kettil et al.
Oct 01, 2008 ... "The purpose of this paper is to simulate the coupled dynamic deformation and water flow that occur in saturated soils when subjected to traffic loads, which is a problem with several practical applications. The wave propagation causes vibrations leading to discomfort for passengers and ...
New chemical technology data have been reported by scientists at Jiwaji University.
Oct 01, 2008 ... According to recent research from Gwalior, India, "A composite polymer surface on a tine oxide offers dramatic improvement in the stability and sensitivity of voltammetric measurement of pyridostigmine bromide as compared to individual tin oxide, polyaniline or polypyrrole coated ...
Studies from University of Bremen have provided new data on remote sensing.
Oct 01, 2008 ... "The polar regions are among those where the least information is available about the current and predicted states of surface and atmosphere. We present advances in a method to retrieve the total water vapor (TWV) of the polar atmosphere from data from spaceborne microwave radiometers such ...
Research from Y.K. Ko and co-researchers in the area of astronomy published.
Oct 01, 2008 ... According to recent research from the United States, "We construct subsynoptic maps of the ultraviolet-line fluxes, electron density, and elemental abundances for an east limb corona at 1.63 solar radii from 2000 September 20 to October 1. The data, covering position angles of 85 ...
Studies from S. Kedia and co-authors have provided new information about earth sciences.
Oct 01, 2008 ... "Spatial variations in aerosol optical properties as function of latitude and longitude are analysed over the Bay of Bengal and Arabian Sea during ICARB cruise period of March-May 2006 from in situ sun photometer and MODIS (Terra, Aqua) satellite measurements. Monthly mean 550nm aerosol ...
New purification technology data have been reported by B. Zhang and co-authors.
Oct 01, 2008 ... According to recent research from Beijing, People's Republic of China, "An efficient microwave-assisted extraction (MAE) technique has been developed to recover chlorogenic acid from flower buds of Lonicera japonica Thunb. The yield of chlorogenic acid rapidly reached 6.14% within 5 min ...
Research on engineering and materials sciences detailed by V.B. Pujari and co-authors.
Oct 01, 2008 ... According to recent research from India, "Mercury cadmium selenide (HgxCd1-xSe) thin film semiconductor photoelectrodes of various compositions (0 <= x<= 0.2) are fabricated on glass and stainless steel substrates by a simple chemical bath technique. The different preparation parameters ...
Findings from A.K. Nandy and co-researchers advance knowledge in atomic science.(Report)
Oct 01, 2008 ... "A critical study has been made for the determination of rare earth elements (REEs) and eight other low level elements (Be, Ge, Mo, Sn, W, Hf, Ta and U) in stream sediment and soil samples by microwave digestion, followed by ICP-MS measurement. In this study, 0.1 g samples were decomposed ...
New photonics study findings recently were reported by T. Yasui and co-researchers.
Oct 01, 2008 ... According to recent research from Kanagawa, Japan, "An InP n-p-i-n Mach-Zehnder modulator and a semiconductor optical amplifier were monolithically integrated to compensate for the modulator's insertion loss." "The device gain exceeded 10 dB, and fiber-to-fiber lossless ...
Researchers from Campinas State University discuss findings in generation transmission & distribution.
Oct 01, 2008 ... According to a study from Campinas, Brazil, "A new and fast method for computing the minimum voltage stability margin (VSM) of power systems is presented. The computation of the VSM is required for power systems planning and operation." "Usually, it is assumed that loads ...
Studies from Washington University describe new findings in physics.
Oct 01, 2008 ... According to a study from the United States, "We modify the Einstein-Schrodinger theory to include a cosmological constant Lambda(z) which multiplies the symmetric metric, and we show how the theory can be easily coupled to additional fields. The cosmological constant Lambda(z) is assumed ...
Investigators at University of Cologne target geophysics.
Oct 01, 2008 ... According to recent research published in the journal Near Surface Geophysics, "A new radiomagnetotelluric (RMT) instrument has been developed that can record time series of electric and magnetic fields in the frequency range from 10 kHz to 1 MHz. Military and civilian radio stations ...
New findings from University of Arizona describe advances in optical research.
Oct 01, 2008 ... "We report an all-solid-state laser system that generates over 200 mW cw at 244 nm," scientists writing in the journal Optics Letters report. "An optically pumped semiconductor laser is internally frequency doubled to 488 nm. The 488 nm output is coupled to an external ...
Research from University of Leicester in materials science provides new insights.
Oct 01, 2008 ... According to recent research from Leicester, the United Kingdom, "New Rheocasting (the NRC process) is a recently developed semisolid processing route. There are two versions of this route." "In one, molten alloy is poured directly into a tilted mould and through careful ...
Data from Mahidol University provide new insights into food science.(Report)
Oct 01, 2008 ... "The purpose of this study was to produce and characterize core-shell biopolymer particles based on electrostatic deposition of an anionic polysaccharide (beet pectin) onto amphoteric protein aggregates (heat-denatured beta-lactoglobulin [beta-1g]). Initially, the optimum conditions for ...
Research reports on solar physics from R. Cameron and colleagues provide new insights.
Oct 01, 2008 ... "The propagation of solar waves through the sunspot of AR 9787 is observed by using temporal cross-correlations of SOHO/MDI Dopplergrams. We then use three-dimensional MHD numerical simulations to compute the propagation of wave packets through self-similar magnetohydrostatic sunspot ...
Banaras Hindu University details research in inorganic chemistry.
Oct 01, 2008 ... "Ru-substituted perovskite oxides with molecular formulae LaSrNi1-xRuxO4 (0.1 <= x<= 0.5) have been obtained by a modified, citric acid sol-gel route at 600 degrees C for their possible use as anodes in a direct methanol fuel cell (DMFC). These oxides have been as film on a nickel support ...
Research results from A. Diblasi and colleagues update understanding of electrochemical research.
Oct 01, 2008 ... According to recent research from Messina, Italy, "The effect of modification of DMFC electrode structures for low temperature operation, under forced convection flow and passive mode operation, was evaluated Regarding the anode, it was found that a reduction of Nafion content in the ...
Reports from Department of Agriculture add new data to research in environment.(Report)
Oct 01, 2008 ... According to a study from the United States, "Optimal soil moisture estimation may be characterized by intercomparisons among remotely sensed measurements, ground-based measurements, and land surface models. In this study, we compared soil moisture from Advanced Microwave Scanning ...
Study findings from Shanghai University broaden understanding of materials engineering.
Oct 01, 2008 ... "The influence of electric current pulse (ECP) with parallel electrodes on the solidification structure of pure aluminum has been investigated. The experimental results indicate that the solidification structure cannot be refined when the ECP is applied before the molten metal starts ...
Findings from Chulalongkorn University broaden understanding of microporous and mesoporous materials.
Oct 01, 2008 ... According to a study from Bangkok, Thailand, "A new route for preparation of mesoporous AlPO4-5 (AFI) zeotype has been synthesized using alumatrane precursor, prepared from aluminum hydroxide and triisopropanolamine (TIS) by the oxide one pot synthesis (OOPS), via microwave technique using ...
Studies in the area of instrumentation research reported from G. Moschioni and co-researchers.
Oct 01, 2008 ... According to a study from Lecce, Italy, "This paper describes a method that allows accuracy and bandwidth enhancements in 3-D sound intensity measurements. Commercial 3-D probes are usually set up with three mutually perpendicular 1-D p-p probes and, thus, arranged with six microphones; ...
Research from L.P. Babich and co-researchers in the area of theoretical physics published.
Oct 01, 2008 ... According to a study from Russia, "Monte Carlo simulations of transport of the bremsstrahlung produced by relativistic runaway electron avalanches are performed for altitudes up to the orbit altitudes where terrestrial gamma-ray flashes (TGFs) have been detected aboard satellites. The ...
New plasma science study findings have been reported by researchers at Xi'an Jiao Tong University.
Oct 01, 2008 ... "Nonthermal plasma generated by parallel-plate dielectric-barrier discharge with 60-kHz high-voltage power was used to sterilize the bacteria in atmospheric air. Two kinds of typical bacteria, gram-negative E. coli (ATCC8099) and gram-positive S. aureus (ATCC6538), were used as test ...
Study data from D.B. Kuryliak and colleagues update understanding of radio science.
Oct 01, 2008 ... According to recent research published in the journal Radio Science, "The analytical regularisation technique for rigorous solution of dual series equations in diffraction theory for structures, which consist of coaxial perfect (perfectly conducting, rigid or soft) conical sections, is ...
Research from F. Todescato and co-authors yields new data on physical chemistry.
Oct 01, 2008 ... According to a study from Bologna, Italy, "We report on the influence of the dielectric/organic interface properties on the electrical characteristics of field-effect transistors based on polyphenylenevinylene derivatives. Through a systematic investigation of the most common dielectric ...
Reports from N.P. Shabanova and colleagues advance knowledge in solid state physics.
Oct 01, 2008 ... "The correlation between the upper critical field H-c2 and the residual resistivity rho of the MgB2 compound is studied in a wide range of rho values. The slope -dH(c2)/dT of the temperature dependence of H-c2 near T-c is found to increase steadily with increasing residual resistivity to ...
Data on analytical chemistry reported by L.G. Shaidarova and co-researchers.
Oct 01, 2008 ... "Particles of osmium or an inorganic polymeric film of osmium oxide-ruthenium cyanide (OsO-RuCN) electrodeposited on glassy carbon (GC) electrocatalyze the oxidation of dopamine (DA), adrenaline (AD), and noradrenaline (NAD)," scientists in Russia report. "It is found that these ...
Reports from C. Hosokawa and colleagues advance knowledge in applied materials science.
Oct 01, 2008 ... According to recent research published in the journal Applied Physics a - Materials Science & Processing, "An all-wet femtosecond laser microprocessing technique was utilized for patterning and cutting functional network of living neuronal cells on a multi-electrode dish (MED). The ...