Electronics Newsweekly back issues from March 2009:
Research from Rutgers University yields new findings on science.
Mar 04, 2009 ... "The quartz resonator Q with aluminum electrodes was studied with respect to its fundamental thickness shear mode frequency and its viscoelastic, viscopiezoelectric, and viscopiezoelectromagnetic behaviors. The governing equations for viscoelasticity, viscopiezoelectricity, and ...
Findings from R. Marquezislas and co-authors broaden understanding of science.
Mar 04, 2009 ... "We investigate theoretically the coupling of exciton with light in a one-dimensional photonic crystal. The unit cell of the crystal consists of two alternating layers, namely a metallic layer and a semiconductor one," scientists writing in the Journal of Nanoscience and Nanotechnology ...
New science research from D.N. Gupta and co-researchers described.(Report)
Mar 04, 2009 ... According to a study from South Korea, "The combined role of an additional long-wavelength electromagnetic wave and a magnetic field on laser electron acceleration is examined. The electron dynamics and the energy gain in the presence of two electromagnetic waves of significantly different ...
Data on science reported by researchers at Osaka University.
Mar 04, 2009 ... According to recent research from Suita, Japan, "We report on the use of sensing devices that have a metal-insulator-gap-insulator-semiconductor structure. We have used capacitance-voltage measurements from a metal-insulator-gap-insulator-semiconductor sensing device to characterize ...
Research from Goddard Space Flight Center has provided new data on climatology.(Report)
Mar 04, 2009 ... According to a study from the United States, "This study compares instantaneous rainfall estimates provided by the current generation of retrieval algorithms for passive microwave sensors using retrievals from the Tropical Rainfall Measuring Mission (TRMM) precipitation radar (PR) and ...
Recent findings in food engineering described by researchers from Kasetsart University.
Mar 04, 2009 ... "Mint (Mentha cordifolia Opiz ex Fresen) was subjected to microwave vacuum drying and hot air drying, respectively. For microwave vacuum drying, three microwave intensities i.e. 8.0 W g(-1), 9.6 W g(-1) and 11.2 W g(-1) were applied with pressure controlled at 13.33 kPa," researchers in ...
New fluids research study findings reported from University of Southampton.(Report)
Mar 04, 2009 ... According to a study from Southampton, the United Kingdom, "Impedance microfluidic cytometry is a non-invasive, label-free technology that can characterize the dielectric properties of single particles (beads/cells) at high speed. In this paper we show how digital signal processing methods ...
Research on nanosystems published by scientists at Urmia University.(Report)
Mar 04, 2009 ... According to a study from Iran, "In this paper dynamic characteristics of a capacitive torsional micromirror under electrostatic forces and mechanical shocks have been investigated. A 2DOF model considering the torsion and bending stiffness of the micromirror structure has been presented." ...
Studies conducted at H.Z. Wu et al on computer-aided design recently published.
Mar 04, 2009 ... According to recent research published in the journal IEEE Transactions on Computer - Aided Design of Integrated Circuits and Systems, "Design for low power has become a key requirement in today's System-on-a-Chip design, particularly for mobile applications. Multi-Vdd (MSV) is an ...
Research from Y. Wan and colleagues has provided new data on chemistry.
Mar 04, 2009 ... According to recent research published in the journal Science in China Series B - Chemistry, "We report a newly synthesized polymer of a star-shaped porphyrin compound (TPA-FxP) with four oligofluorene arms at its meso positions with the pronounced enhancement of the two-photon properties ...
New findings from Changwon National University describe advances in applied materials science.
Mar 04, 2009 ... "Ferroelectric and dielectric properties of bilayered ferroelectric thin films, SrBi4Ti4O15 grown on Bi4Ti3O12, were investigated. The thin films were annealed at 700A degrees C under oxygen atmosphere," investigators in South Korea report. "The bilayered thin films were ...
New geophysics study findings recently were published by researchers at Goddard Space Flight Center.
Mar 04, 2009 ... "MESSENGER's January 14, 2008, flyby of Mercury has provided new observations of the planet's magnetosphere for northward interplanetary magnetic field (IMF). The dusk magnetopause was located inward from the mean magnetopause surface, possibly due to reduced tail magnetic flux content for ...
Study data from Southwest University update understanding of chemical research.
Mar 04, 2009 ... According to recent research from Chongqing, People's Republic of China, "A new poly(vinyl chloride) (PVC) membrane ion-selective electrode based on bis-salicyladehyde-diaminjodipropylamine (BSDDA) as an ion carrier was successfully applied to the detection of Hg2+ ions. This electrode ...
Research from S.A. Loan and co-researchers provides new data on semiconductors.
Mar 04, 2009 ... "A novel high breakdown voltage lateral bipolar junction transistor (LBJT) on silicon-on-insulator (SOI) is proposed. The novelty of the device is the use of the combination of multistep-doped drift region and multistep buried oxide," scientists in Kanpur, India report. "The ...
New findings from University of British Columbia in the area of porous materials described.
Mar 04, 2009 ... "Dried cellular solids were produced using different hydrocolloids such as locust bean gum, low methoxy pectin, methyl cellulose and tapioca starch. They were dried to less than 5% (w.b) moisture content using freeze-drying, vacuum drying, vacuum microwave drying or air-drying methods," ...
Scientists at Kanazawa University report research in planetary science.
Mar 04, 2009 ... "We perform an electromagnetic full particle simulation to study the generation mechanism of VLF whistler-mode chorus emissions in the equatorial region of the magnetosphere. Parabolic variation of the static magnetic field is assumed as a model for the dipole magnetic field in the ...
Findings from NTT Corporation broaden understanding of electrochemical research.
Mar 04, 2009 ... "Anew strategy for increasing the power density of an air-breathing small proton exchange membrane fuel cell (PEMFC) system for the main energy source of portable consumer electronics is presented. The small PEMFC system is composed of a single cell," scientists in Atsugi, Japan report. ...
New applied animal research findings from Shiraz University described.
Mar 04, 2009 ... According to a study from Iran, "Fortyfive adult male rats (220-250g) were divided into 3 equal groups." "Rats of group 1 were exposed to 50Hz, 500 mu T in solenoid 10 h / day for 2 mo, group 2 were kept in condition similar to the group 1 except in off solenoid and group 3 were ...
New chemical engineering study results from J.M. Silva et al described.
Mar 04, 2009 ... "Laboratory chloralkali membrane electrolyzer tests showed a dramatic voltage increase and mild catholyte foaming when low levels of chloromethyl triethylammonium chloride (CTACl), a quaternary ammonium salt, were present in the feed brine. Current efficiency was not measurably affected by ...
Research from Q. Zhang and colleagues provide new insights into surface science.
Mar 04, 2009 ... "In this work, Ni80Fe20/Cu composite wires of length 50mm, consisting a Cu core of diameter 100 mu m, coated with a layer of Ni80Fe20, were produced by RF magnetron sputtering. To obtain a uniform coating, the wires were spun during sputtering by a homemade system," scientists writing in ...
Reports by P.A. Semenov and co-researchers describe recent advances in nuclear physics.
Mar 04, 2009 ... According to a study from Russia, "PANDA is a challenging experimental setup to be implemented at the high-energy storage ring (HESR) at the international facility FAIR, GSI (Germany)." "PANDA physics program relies heavily on the capability to measure photons with excellent ...
Data on plasma physics published by R.M.G.M. Trines and colleagues.
Mar 04, 2009 ... According to recent research from Didcot, the United Kingdom, "The modulational instability that occurs during the interaction of a long laser pulse and its own wakefield in an underdense plasma has been studied experimentally and theoretically. Recent experiments using laser pulses that ...
Studies from Banaras Hindu University update current data on phase transitions.
Mar 04, 2009 ... "High conductivity and high specific capacitance of certain kinds of ion-conducting solid polymer electrolytes has been the subject of intensive study in recent years. These materials play an important role in understanding the polymer characteristics and its technological applications ...
Reports summarize philosophy research from C.L. Bertucci and co-authors.
Mar 04, 2009 ... "The structure and variability of Saturn's magnetic field in the vicinity of Titan's orbit is studied. In the dawn magnetosphere, the magnetic field presents a significant radial component directed towards Saturn, suggesting that Titan is usually located below the planet's warped and ...
Findings from J. Donnert and co-researchers advance knowledge in astronomy.
Mar 04, 2009 ... According to recent research from Garching, Germany, "We performed cosmological, magnetohydrodynamical simulations to follow the evolution of magnetic fields in galaxy clusters, exploring the possibility that the origin of the magnetic seed fields is galactic outflows during the starburst ...
Research reports from N.H. Zhu and co-authors provide new insights into lightwave technology.(Report)
Mar 04, 2009 ... According to recent research published in the Journal of Lightwave Technology, "In this paper, we propose the dynamic P-V curve for modulator and P-I curve for laser diode, and present a simple approach to deriving the curves from the small-signal frequency responses measured using a ...
New applied surface science research reported from Changwon National University.
Mar 04, 2009 ... "The effects of vanadium(V) doping into SrBi4Ti4O15 (SBTi) thin films on the structure, ferroelectric, leakage current, dielectric, and fatigue properties have been studied," scientists in South Korea report. "X-ray diffraction result showed that the crystal structure of the ...
Study data from Technical University of Ilmenau update knowledge of fluids engineering.
Mar 04, 2009 ... "We study a one-dimensional model describing buoyancy-driven laminar steady flow of a glass melt in a closed loop under the influence of a localized electromagnetic (Lorentz) force. The loop is a highly simplified representation of a closed streamline in glass melt flow in a real furnace ...
Research from X. Liang and colleagues provide new insights into nanotechnology.
Mar 04, 2009 ... "We present a novel fabrication method for incorporating nanometer to micrometer scale few-layer graphene (FLG) features onto substrates with electrostatic exfoliation. We pattern highly oriented pyrolytic graphite using standard lithographic techniques and subsequently, in a single step, ...
Study data from University of Mississippi update understanding of computational mathematics.
Mar 04, 2009 ... "A fractal analysis is presented for the binding and the dissociation of prion proteins to biosensor surfaces. Both single- and dual-fractal analysis may be used to model the binding and the dissociation kinetics," researchers in the United States report. "The fractal dimension ...
Reports from G. Rudiger and co-researchers add new data to research in astrophysics.
Mar 04, 2009 ... "The stability of the dissipative Taylor-Couette flow with a stable axial density stratification and a prescribed azimuthal magnetic field is considered. Global nonaxisymmetric solutions of the linearized MHD equations with toroidal magnetic field, density stratification, and differential ...
Reports outline science research from Technical University.
Mar 04, 2009 ... "A cold dielectric barrier discharge (DBD) plasma plume with one highly conductive liquid electrode has been developed to treat thermally sensitive materials, and its preliminary discharging characteristics have been studied. The averaged electron temperature and density is estimated to be ...
Researchers from Clemson University describe findings in applied physics.
Mar 04, 2009 ... According to recent research from the United States, "We demonstrate a sensitive radio frequency (rf) device to detect small dielectric property changes in microfluidic channel. The device consists of an on-chip Wilkinson power divider and a rat-race hybrid, which are built with planar ...
Data on physics discussed by J. Cernak and colleagues.
Mar 04, 2009 ... According to recent research from Kosice, Slovakia, "We experimentally investigated field-induced aggregation of nonmagnetic particles confined in a magnetic fluid layer when rotating magnetic fields were applied. After application of a magnetic field rotating in the plane of the fluid ...
New inclusion phenomena and macrocyclic chemistry study findings have been reported from Gujarat University.
Mar 04, 2009 ... According to recent research published in the Journal of Inclusion Phenomena and Macrocyclic Chemistry, "Modified and advanced approach has been developed for the synthesis of meso-tetra(methyl) meso-tetra(4-hydroxy phenyl) calix[4]pyrrole, meso-tetra(methyl) meso-tetra(3, 5-dihydroxy ...
Researchers at University of California target computer graphics.
Mar 04, 2009 ... "We present an unbiased method for generating caustic lighting using importance sampled Path Tracing with Caustic Forecasting. Our technique is part of a straightforward rendering scheme which extends the Illumination by Weak Singularities method to allow for fully unbiased global ...
Researchers at USA Scientific publish new data on science and technology.
Mar 04, 2009 ... "The Milltown Dam, at the confluence of the Clark Fork and Blackfoot Rivers ill Montana, lies at the downstream end of the nation's largest Superfund Project. Since its construction in 1906, several hundred thousand tonnes of metal-contaminated sediment from upstream mining activities, ...
Research from University of Oxford provides new data on geology.(Report)
Mar 04, 2009 ... According to recent research from Oxford, the United Kingdom, "Some studies indicate that the solar modulation of galactic cosmic ray (GCR) particles has profound consequences for Earth's climate system. A corollary of the GCR-climate theory involves a link between Earth's magnetic field ...
New fluids research reported from Dalhousie University.
Mar 04, 2009 ... According to recent research published in the journal Experiments in Fluids, "High-frequency broadband (200-300 kHz) acoustic scattering techniques have been used to observe the diffusive regime of double-diffusive convection in the laboratory. Pulse compression signal processing ...
Research from University of Minnesota reveals new findings on molecular research.
Mar 04, 2009 ... "Microwave spectra of the hydrogen bonded complex (OD)-O-16-(OH2)-O-16 have been recorded using pulsed-nozzle Fourier transform microwave spectroscopy. The potential splitting, p, which describes the partial quenching of the OD orbital angular momentum upon complexation, is determined to ...
Studies from R. Garjonyte et al have provided new data on microchemical research.
Mar 04, 2009 ... "Electrodes modified with a layer of baker's and wine yeast Saccharomyces cerevisiae (dried at various temperatures) were investigated as amperometric biosensors for lactic acid in the presence of mediators such as potassium ferricyanide, phenazine methosulphate, ...
Investigators at Zhengzhou University publish new data on analytical chemistry.
Mar 04, 2009 ... "A simple method for the separation and determination of steroids (estradiol valerate, triamcinolone, levonorgestrel and ethinylestradiol) in single and compound tablets by nonaqueous capillary electrophoresis with ultraviolet (UV) spectrophotometric detection has been developed for the ...
Study results from Technical University of Denmark provide new insights into ultrasonic research.
Mar 04, 2009 ... According to recent research published in the journal IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control, "A minimum variance (MV) approach for near-field beamforming of broadband data is proposed. The approach is implemented in the frequency domain, and it provides a ...
Research from R.K. Sauerbrey and co-authors yields new data on corrosion science.
Mar 04, 2009 ... "MgO-electrodes were polarised at voltages of up to 10V in a synthetic lime-alumina-silicate slag at 1400 degrees C. Cathodic corrosion protection was obtained at voltages >= 8 V, whereas anodic decay was accelerated manifold," investigators in Leoben, Austria report. "The ...
Reports summarize applied electrochemistry study results from R.A.H. Edwards and co-researchers.
Mar 04, 2009 ... "The potential drop between two immiscible electrolyte solutions consists of the sum of that across the double layer and the diffusion barrier layer," scientists writing in the Journal of Applied Electrochemistry report. "A relation between these components has been proposed by ...
New manufacturing technology research from Z.X. Hu et al outlined.
Mar 04, 2009 ... "With the development and application of optoelectric technology, laser technology and computer technology in mind, we have developed a method to evaluate three-dimensional surface roughness using surface profile information. This article proposes a three-dimensional measuring technique, ...
Research on applied optics described by scientists at University of Queensland.
Mar 04, 2009 ... According to a study from Brisbane, Australia, "Two-photon photopolymerization of UV curing resins is an attractive method for the fabrication of microscopic transparent objects with size in the tens of micrometers range." "We have been using this method to produce ...
New heterocyclic chemistry study findings have been reported by scientists at Maharshi Dayanand University.
Mar 04, 2009 ... According to a study from Rohtak, India, "2-Alkyl/aryl-6-benzofuranyl imidazo [2,1-b]-1,3,4-thiadiazoles (1) have been prepared by condensation of 5-alkyl/aryl-2-amino-1,3,4-thiadiazoles with 2-(2-bromoacetyl) benzofurans under normal thermal condition as well as using microwave ...
New condensed matter study findings recently were reported by K. Yamauchi and co-researchers.
Mar 04, 2009 ... "Improper ferroelectricity in magnets, as induced by non-centrosymmetric spin-, charge- or orbital-ordering, is a branch of the field of multiferroics having fascinating physics and a potentially important technological outcome," researchers in Italy report. "We focus here on ...
Reports on nanolithography findings from University of Texas provide new insights.
Mar 04, 2009 ... According to a study from the United States, "Two-photon polymerization (2PP) is an effective technique for the fabrication of complex polymeric 3-D micro/nanofeatures and structures using ultrashort pulses from a NIR laser source. The interaction of laser pulses with photoresponsive resin ...
Recent findings from Anhui Normal University highlight research in solids.
Mar 04, 2009 ... "In the present paper, we described a polyacrylic acid (PAA)-assisted microwave irradiation route for synthesis of Calcium carbonate (CaCO3) microcrystals. CaCl2 center dot 2H(2)O and NaHCO3 were used as the starting reactants," researchers in Wuhu, People's Republic of China report. ...
Findings from Osaka University in analytical science reported.
Mar 04, 2009 ... According to a study from Osaka, Japan, "The Faraday rotation of diamagnetic liquids has been measured by applying it pulsed magnetic field." "The observed results for water, alcohol, and aliphatic and aromatic organic liquids suggested a possible discrimination of such liquids ...
Reports from L.H. Corporales and colleagues advance knowledge in circuits research.
Mar 04, 2009 ... According to recent research published in the journal IEEE Transactions on Circuits and Systems II - Express Briefs, "This paper shows the operating principle and experimental results of a new continuous-time sigma-delta modulator architecture. The proposed modulator does not require a ...
New micromechanics and microengineering findings from University of Cincinnati published.(Report)
Mar 04, 2009 ... According to a study from the United States, "In this paper, a new cobalt-coated needle-type microelectrode array sensor for in situ measurements of phosphate has successfully been designed, fabricated and characterized. MEMS technologies were used to fabricate microelectrode arrays with a ...
New nuclear science data have been reported by H. Quinn and co-authors.
Mar 04, 2009 ... According to a study from the United States, "The Xilinx Virtex family of static random access memory (SRAM) based field programmable gate array (FPGA) devices have made inroads into space-based computational platforms over the past decade. These devices are well-suited for digital signal ...
Study findings on electrical engineering are outlined in reports from P. Pourmohamadiyan and colleagues.(Report)
Mar 04, 2009 ... "A new current controlled switch is introduced in this paper and its conceptual design approach is described. The device works based on the motion of a liquid conducting medium and uses the built in electromagnetic quantities instead of external feedback signals to control the desired ...
Study findings on physical chemistry are outlined in reports from University of Alicante.
Mar 04, 2009 ... "The adsorption of mono-, di-, and trifluoroacetate anions at gold electrodes is studied in perchloric acid solutions by cyclic voltammetry and in situ infrared and Raman spectroscopies. Surface enhanced infrared reflection absorption spectroscopy experiments under attenuated total ...
Hokkaido University details research in power systems.
Mar 04, 2009 ... According to recent research from Sapporo, Japan, "In order that the supply of electric power remain stable and sustainable, a certain level of power quality must be maintained while securing energy resources and resolving environmental issues. The distributed generation (DG) has become an ...
Research results from W. Suski and co-authors update knowledge of alloys and compounds.
Mar 04, 2009 ... "The UCu2T3Al7 alloys, where T=Cr, Mn and Fe, crystallize in the ThMn12-type tetragonal structure. Earlier investigation of magnetic and electrical properties revealed their complex magnetic behavior except of the Cr compound, which is paramagnetic, whereas their electrical resistivity is ...
Studies from Y.J. Wu and colleagues provide new data on food technology.
Mar 04, 2009 ... According to recent research from Beijing, People's Republic of China, "Multiplex PCR-CE-SSCP approach was used to identify foodborne pathogens. 16srRNA system including three target fragments localized at different position of 16srRNA gene and gyrB system including two target fragments at ...
Research on mechanics of materials and structures discussed by A.C. Wijeyewickrema and co-researchers.
Mar 04, 2009 ... According to a study from Tokyo, Japan, "The dynamic motion of a prestressed compressible elastic layer having constrained boundaries is considered. The dispersion relations which relate wave speed and wave number are obtained for both symmetric and antisymmetric motions." "Both ...
Research conducted at University of Bologna has provided new information about applied sciences.(Report)
Mar 04, 2009 ... "In this paper we present a Ginzburg-Landau model to describe the phenomenon of superconductivity as a second-order phase transition. The model proposed, which also includes thermal effects, allows to explain the existence of threshold values, both of the magnetic field and of the ...
Investigators at University of Paris publish new data on magnetics.
Mar 04, 2009 ... "Eddy-current nondestructive testing is widely used to detect defects within a metal structure. It is also useful to characterize their location and shape provided that proper maps of variations of impedance that the defects induce are available," scientists in France report. ...
New electroanalysis study findings reported from Charles University.
Mar 04, 2009 ... "Simple contactless cells with planar or tubular electrodes have been designed for measurement of the permittivity of solutions. The cells, connected to an integrated circuit of astable multivibrator, respond primarily to the capacitance component of the cell impedance, the multivibrator ...
Research from Texas A&M University has provided new information about very large scale integration systems.(Report)
Mar 04, 2009 ... According to a study from the United States, "The realization or functions such as log() and antilog() in hardware is of considerable relevance, due to their importance in several computing applications. In this paper, we present an approach to compute log() and antilog() in hardware." ...