Electronics Newsweekly back issues from April 2009:
Reports summarize science study results from Hefei University.
Apr 01, 2009 ... "The spectral analysis is combined with digital filter to process the vortex sensor signal for reducing the effect of disturbance at low frequency from pipe vibrations and increasing the turndown ratio. Using digital signal processing chip, two kinds of digital signal processing systems ...
New science study results from V. Zorngiebel et al described.
Apr 01, 2009 ... According to a study from France, "This paper describes the development of a semiconductor based switch for use in pulsed power technology. Because of the more stable operating conditions, given by the semiconductor, devices, this switch could be used to replace the up to now in pulsed ...
Studies conducted at University of Tokyo on science recently published.
Apr 01, 2009 ... According to a study from Chiba, Japan, "To identify the mode-converted electron Bernstein wave (EBW) in a torus plasma directly, we have developed an interferometry system, in which a diagnostic microwave injected outside of the plasma column was directly detected with the probing antenna ...
Studies from H. Li and colleagues provide new data on science.
Apr 01, 2009 ... "High energy density capacitor is a key device in power supply source in Electromagnetic Gun (EMG) system. The increase of energy density of capacitor is beneficial from emerge of metallized technology in electrode and advancement in manufacturing," researchers in Wuhan, People's Republic ...
Scientists at Tongji University target science and technology.
Apr 01, 2009 ... According to a study from Shanghai, People's Republic of China, "A novel Sb-doped SnO2 electrode featuring high oxygen evolution potential, excellent electrocatalytic performance, and long stability toward electrochemical degradation of refractory organic pollutants was constructed by ...
Studies from S. Moon and colleagues reveal new findings on optical research.
Apr 01, 2009 ... According to recent research published in the journal Optics Express, "We present a new high-speed lifetime measurement scheme of analog mean-delay (AMD) method which is suitable for studying dynamical time-resolved spectroscopy and high-speed fluorescence lifetime imaging microscopy ...
New findings from G. Brida and co-authors in the area of optic research published.
Apr 01, 2009 ... "Spontaneous parametric down conversion has been largely exploited as a tool for absolute calibration of photon counting detectors, photomultiplier tubes or avalanche photodiodes working in the Geiger regime," scientists writing in the Journal of Modern Optics report. "In this ...
Studies from George Mason University update current data on space research.
Apr 01, 2009 ... "Magnetic effects are ubiquitous and known to be crucial in space physics and astrophysical media. We have now the opportunity to probe these effects in the outer heliosphere with the two spacecraft Voyager 1 and 2. Voyager 1 crossed, in December 2004, the termination shock and is now in ...
New data from University of Paris illuminate research in geoscience.
Apr 01, 2009 ... "An inversion code has been constructed using Matlab, to recover I D parameters of the Cole-Cole model from spectral induced polarization data. In a spectral induced polarization survey, impedances are recorded at various frequencies," investigators in Paris, France report. ...
New plasma science study findings have been reported from Nanchang University.(Report)
Apr 01, 2009 ... "In this study, the propagation of electromagnetic waves in one-dimensional plasma photonic crystals (PPCs), namely, superlattice structures consisting alternately of a homogeneous unmagnetized plasma and dielectric material, is simulated numerically using the finite-difference time-domain ...
New food science research from S. Durairaj and co-researchers described.
Apr 01, 2009 ... "A theoretical analysis has been carried out to study the efficient microwave processing of discrete food sample ceramic composite attached with ceramic (Al2O3 and SiC) plates. Continuous food sample with a specific thickness corresponding to smaller power absorption is replaced by two ...
Research from University of British Columbia in the area of computer-aided design published.
Apr 01, 2009 ... "Among the different methods of reducing power for core-based system-on-chip (SoC) designs, the voltage-island technique has gained in popularity. Assigning cores to the different supply voltages and floorplanning to create contiguous voltage islands are two important steps in the design ...
Researchers from Shanghai Jiao Tong University describe findings in manufacturing technology.(Report)
Apr 01, 2009 ... According to recent research published in the International Journal of Advanced Manufacturing Technology, "Resistance spot welding (RSW) is typically used in automobile body assembly, where continuous efficiency depends on electrode life, which is closely related with the water cooling ...
New magnetics findings from University of Texas described.
Apr 01, 2009 ... According to recent research from the United States, "Transient three-dimensional (3-D) electromagnetic analyses have been performed on armatures and rails which are intended to be used for high launch energy applications." "Coupled magnetic and thermal diffusions were solved ...
Investigators at Miami University target packaging technology.
Apr 01, 2009 ... "This paper presents a scheme to reduce the on-die voltage noise that occurs due a buffer switching event. Both output and input buffer switch events are addressed," researchers in the United States report. "A generic power delivery network (PDN) model with parasitic inductance ...
New findings from O. Petruk and co-researchers in the area of astronomy described.
Apr 01, 2009 ... "A number of important processes taking place around strong shocks in supernova remnants (SNRs) depend on the shock obliquity. The measured synchrotron flux is a function of the aspect angle between interstellar magnetic field (ISMF) and the line of sight," scientists in Ukraine report. ...
New polymer science research from Suez Canal University discussed.
Apr 01, 2009 ... According to a study from Ismailia, Egypt, "A new conducting blend from natural rubber (NR), low-density polyethylene (PE), and Bi-based superconductor (BSCCO) nanoparticles was successfully formulated. Blends were prepared by means of an open two-roll mill for five ratios (100/0, 90/10, ...
Reports from University of Connecticut highlight recent research in hydrology.(Report)
Apr 01, 2009 ... "In this study, two novel electrode materials were tested to enhance bacterial adhesion and increase power production in microbial fuel cells (MFCs). Polypyrrole (PPy), a nontoxic conductive polymer, was coated on the plain carbon cloth electrodes to bridge with the biopolymers on ...
Research reports from X.B. Chen and co-authors provide new insights into nanotechnology.
Apr 01, 2009 ... "This work initiates an investigation on the creation of room-temperature ferromagnetism in diamagnetic solid via a nonmagnetic doping. CeO2 is taken as a prototype compound," scientists in Fuzhou, People's Republic of China report. "A series of Ce1-xCaxO2-delta solid solutions ...
New lightwave technology study findings have been reported by S.L. Jansen and colleagues.
Apr 01, 2009 ... "We discuss optical multi-band orthogonal frequency division multiplexing (OFDM) and show that by using multiple parallel OFDM bands, the required bandwidth of the digital-to-analogue/ analogue-to-digital converters and the required cyclic prefix can significantly be reduced," scientists ...
New energy conversion study findings have been published by scientists at University of Glasgow.(Report)
Apr 01, 2009 ... According to a study from Scotland, "An internal fault in a synchronous generator produces an effect similar to increasing the number of grouped coils in the stator winding, making it necessary to use additional time-variant inductances to represent the condition, with the ensuing increase ...
Research on animal reproduction published by scientists at University of Bari.(Report)
Apr 01, 2009 ... "The neuroendocrine conditioning of reproduction in birds could perform a very important role in captive breeding, especially in endangered species. Whereas in domestic and wild mammals pharmacological reproductive conditioning is well developed, in birds an effective method is not ...
New materials science data have been reported by S. Rosset and co-authors.
Apr 01, 2009 ... According to a study from Neuchatel, Switzerland, "Here, the use of low-energy metal ion implantation by filtered cathodic vacuum arc to create highly deformable electrodes on polydimethylsiloxane (PDMS) membranes is reported. Implantation leads to the creation of nanometer-size clusters ...
Reports outline nature physics research from Yale University.
Apr 01, 2009 ... "On the level of single atoms and photons, the coupling between atoms and the electromagnetic field is typically very weak. By using a cavity to confine the field, the strength of this interaction can be increased by many orders of magnitude, to a point where it dominates over any ...
Researchers from University of Paris report details of new studies and findings in the area of analytical science.
Apr 01, 2009 ... "Although reliable models may predict the detection efficiency of semiconductor detectors, measurements are needed to check the parameters supplied by the manufacturers, namely, the thicknesses of dead layer, beryllium window, and crystal active area. The efficiency of three silicon ...
Data from M. Grabarczyk and colleagues advance knowledge in microchemical research.
Apr 01, 2009 ... According to recent research from Lublin, Poland, "The design and experimental results of the application of a renewable mercury film silver based electrode to the determination of Cr(VI) in soil samples are presented. The main feature of this procedure is that it can be used in field ...
Research from Y.H.R. Zheng and co-researchers provides new data on vehicular technology.(Report)
Apr 01, 2009 ... "Frequency-domain equalization (FDE) is an effective technique for high-data-rate wireless communication systems suffering from very long intersymbol interference. Most of the existing FDE algorithms are limited to slow time-varying fading channels due to the lack of an accurate channel ...
Study results from University of Palermo in the area of geophysics published.(Report)
Apr 01, 2009 ... "In this paper, the response of different synthetic models to geoelectrical multi-electrode surveys is studied. The models considered are related to two main problems, which are very common in geophysical research regarding hydrogeology and engineering," scientists in Palermo, Italy ...
Research from K. Balasubadra and colleagues has provided new data on nanoelectronics and optoelectronics.
Apr 01, 2009 ... "High-speed photoreceivers are important components for future high-bit rate communication systems. The use of a monolithical integration of photodetector and amplifier avoids loss making interconnections and enables high-speed performance, small size and cost-saving high frequency ...
Study results from V. Acocella and colleagues in the area of volcanology published.
Apr 01, 2009 ... According to recent research from Rome, Italy, "Dikes within stratovolcanoes are commonly expected to have radial patterns. However, other patterns may also be found, due to regional stresses, magmatic reservoirs and topographic variations." "Here, we investigate dike patterns ...
Studies from D.S. Khvostichenko and co-authors have provided new information about fuel research.
Apr 01, 2009 ... "We investigated the behavior of asphaltic solids in an unstable crude oil Y3, its mixtures with heptane, and its isolated asphaltenes with respect to electrodeposition onto metal electrodes in direct current (DC) electric fields. Asphaltic material from the neat oil Y3 was found to ...
New food technology findings from Polytechnic University published.
Apr 01, 2009 ... "The objective of this work was to study the evolution of the volatile fraction, and ATP and its breakdown products, in desalted cod thermally treated (water blanching, steam blanching and microwave heating), stored at 4 degrees C. All analyses were carried out at 0, 7, 14, 21, and 28 days ...
Research from McMaster University broadens understanding of materials chemistry.
Apr 01, 2009 ... According to recent research from Hamilton, Canada, "Stable, solution-processed, non-toxic, high-mobility thin-film semiconductors are required for fabricating low-cost thin-film transistor (TFT) arrays and circuits to enable ubiquitous large-area and ultra low-cost electronics. Most ...
Reports outline machine learning study results from J. Heiber et al.(Report)
Apr 01, 2009 ... "In a previous work, the authors have presented a comprehensive procedure for the direct characterization of single piezoelectric ceramic fibers in terms of butterfly and polarization loops and blocking force. The ability to investigate single fibers is relevant for optimizing their ...
Researchers at University of Oxford have published new data on condensed matter.
Apr 01, 2009 ... "Massless Dirac particles cannot be confined by an electrostatic potential. This is a problem for making graphene quantum dots but confinement can be achieved with a magnetic field and here general conditions for confined and deconfined states are derived," scientists writing in the ...
Research results from K.A. Denton and co-authors update knowledge of microbiology.
Apr 01, 2009 ... "There is no rapid diagnostic technique at medical examiners' offices to determine if a decedent is infected with Mycobacterium tuberculosis. Present diagnostic testing requires at least 1 month for results," scientists in the United States report. "The RAPTOR, a portable, ...
New nanoscience study findings have been reported from Tsinghua University.
Apr 01, 2009 ... "The polarization switching and strain effects on the ferroelectric characters of BaTiO3 films are studied using molecular dynamics method based on a shell model. We observed the strip domains and the polarization switching in nanofilms, and found that the surface and inner polarization ...
Researchers from University of Leicester discuss findings in algorithms.
Apr 01, 2009 ... "We consider online coloring of intervals with bandwidth in a setting where colors have variable capacities. Whenever the algorithm opens a new color, it must choose the capacity for that color and cannot change it later," scientists writing in the journal Algorithmica report. ...
Research results from X.J. Wan and co-authors update knowledge of photochemistry.
Apr 01, 2009 ... According to recent research published in the Journal of Photochemistry and Photobiology a - Chemistry, "A novel water-soluble benzylidene cyclopentanone dye was synthesized by introducing four sodium carboxylate groups into 2,5-Bis-[4-(diethylamino)-benzylidene]-cyclopentanone (BDEA)." ...
Research from T. Doneux et al broadens understanding of science.
Apr 01, 2009 ... According to a study from Brno, Czech Republic, "Due to intermolecular interactions, the surface composition of mixed self-assembled monolayers often differs markedly from the solution composition. In the case of charged surfactants, large deviations from the ideality have been reported." ...
Studies from University of Stuttgart update current data on computational physics.
Apr 01, 2009 ... According to a study from Stuttgart, Germany, "We have developed a new method for the fast computation of wavelengths and oscillator strengths for medium-Z atoms and ions, up to iron, at neutron star magnetic field strengths." "The method is a parallelized Hartree-Fock approach ...
Studies in the area of waves in random and complex media reported from University of Illinois.
Apr 01, 2009 ... "A novel method to solve the volume integral equation involving inhomogeneous and anisotropic permittivity and permeability dielectric objects is introduced. A curl-conforming edge element is used to model the electric field distributions," scientists in the United States report. ...
Research in the area of physics reported from University of Warsaw.
Apr 01, 2009 ... "We describe more precisely the mechanism of spontaneous mass generation in the previously proposed model of hidden sector of the Universe. The hidden sector is conjectured to consist of sterile spin-1/2 fermions (sterinos) whose mass is spontaneously generated by sterile scalar bosons ...
New applied physics study results from G. Shabbir et al described.
Apr 01, 2009 ... 'Lanthanum-doped lead zirconate titanate, PLZT-x/65/35 (x=8.0, 9.0, and 9.4), relaxor ferroelectric ceramics were investigated by the high resolution Brillouin light scattering spectroscopy in the temperature range from similar to 870 down to similar to 170 K. Broad anomalies were observed ...
Recent findings in applied materials science described by researchers from University of Cagliari.(Report)
Apr 01, 2009 ... "In this paper we report on the realization of flexible all-organic ambipolar field-effect transistors (FETs) realized on unconventional substrates, such as plastic films and textile yarns. A double layer pentacene-C-60 heterojunction was used as the semiconductor layer," scientists in ...
Studies from Hitachi, Ltd. add new findings in the area of nuclear science.
Apr 01, 2009 ... According to a study from Ibaraki, Japan, "A prototype positron emission tomography (PET) scanner using CdTe semiconductor detectors was developed, and its initial evaluation was conducted. The scanner was configured to form a single detector ring with six separated detector units, each ...
Studies from University of the Basque Country describe new findings in energy research.
Apr 01, 2009 ... "This paper presents a modelling methodology to analyse the impact of wind farms in surrounding networks. Based on the transient modelling of the asynchronous generator, the multi-machine model of a wind farm composed of N generators is developed," scientists writing in the journal Energy ...
Research from L.J. Li and co-authors reveals new findings on laser physics.(Report)
Apr 01, 2009 ... "Continuous wave (CW) and acousto-optical (AO) Q-switch operation of Tm (5 at %), Ho (0.3 at, %): YAP laser at 2.13 mu m wavelength were reported in this paper. The Tm,Ho:YAP crystal was cooled by liquid nitrogen and double-end-pumped by a 14.2 W fiber-coupled laser diode at 7.98 nm," ...
Studies from B. Golan et al add new findings in the area of chemical physics.
Apr 01, 2009 ... "Our understanding of processes involved in two-photon photoemission (2PPE) from surfaces can be tested when we try to exercise control over the electron emission. In the past, coherently controlled 2PPE has been demonstrated using very short pulses and single crystal surfaces," scientists ...
New management science findings from Technical University of Dresden described.(Report)
Apr 01, 2009 ... "A simulation-based scheduling system is discussed which was developed for a semiconductor Backend facility. Apart from usual dispatching rules it uses heuristic search strategies for the optimisation of the operating sequences," scientists writing in the International Journal of ...
Studies from C. Silva et al have provided new data on solid state chemistry.
Apr 01, 2009 ... "A clean alternative method for the determination of chemical oxygen demand (COD) was developed using a copper electrode as an electrocatalytic sensor. The measuring principle is based on oxidation current of organic compounds in the wastewater," scientists writing in the Journal of Solid ...
Data on nuclear physics detailed by M. Zhang and co-authors.
Apr 01, 2009 ... "During the commissioning of the sub-harmonic buncher of the Shanghai synchrotron radiation facility (SSRF) linac, unexpected multipacting effect is observed, which limits the increase of the input power when the focusing coils are added," scientists in Shanghai, People's Republic of China ...
Studies in the area of environmental research reported from M.A. Gondal and co-researchers.
Apr 01, 2009 ... "Efficient removal of phenol was carried out using laser induced photocatalyis process in the presence of Fe2O3 semiconductor catalysts, and under UV laser irradiation. Parametric dependence of the removal process was investigated carefully by variation of laser irradiation time, laser ...
Research on planetary science discussed by scientists at Utah State University.
Apr 01, 2009 ... According to a study from the United States, "We evaluate the performance of three solar wind-magnetosphere coupling functions in training the physics-based WINDMI model on the 3-7 October 2000 geomagnetic storm and predicting the geomagnetic Dst and AL indices during the 15-24 April 2002 ...
New veterinary radiology research from University of Saskatchewan, Medical Department discussed.
Apr 01, 2009 ... According to recent research published in the journal Veterinary Radiology & Ultrasound, "While skin sparing is an advantage of megavoltage beams, in certain clinical situations the planning target volume includes the skin surface and a skin sparing effect is not desirable. A tissue ...
Researchers' work from Nanjing University focuses on microbiology and biotechnology.
Apr 01, 2009 ... According to a study from Nanjing, People's Republic of China, "Vertical distribution of bacterial community structure was investigated in the sediments of two eutrophic lakes of China, Lake Taihu and Lake Xuanwu. Profiles of bacterial communities were generated using a molecular ...
New micromechanics and microengineering data have been reported by scientists at Seoul National University.
Apr 01, 2009 ... "Our goal was to develop a single-pole four-throw (SP4T) radio frequency microelectromechanical system (RF MEMS) switch for band selection in a multi-band, multi-mode, front-end module of a wireless transceiver system. The SP4T RF MEMS switch was based on an arrangement of four single-pole ...
New electrochemical research study results reported from T. Sasaki et al.
Apr 01, 2009 ... According to a study from Japan, "The mechanism for capacity fade of lithium-ion batteries with LiNi0.8Co0.15Al0.05O2 as a positive electrode material associated with cycling at elevated temperatures was investigated by the combination of electrochemical and spectroscopic methods." ...
Research on separation science discussed by scientists at Nanjing University.(Report)
Apr 01, 2009 ... "Resolution of glycoforms of a glycoprotein is usually a challenge for an analytical chemist, which is often associated with the difficulty of detecting a large number of glycoforms with sufficient sensitivity. CE is the main workhorse for the analysis of glycoproteins; however, the ...
Researchers from Pennsylvania State University report details of new studies and findings in the area of interface science.
Apr 01, 2009 ... "The interfacial interactions and their effects on electrical properties are reported for thermally grown SiO2-Parylene-C laminar composites. The segmental chain mobility of the interfacial Parylene-C was found to be enhanced in the composites," investigators in the United States report. ...
New applied electrochemistry study findings have been reported by V. Thangaraj and co-researchers.
Apr 01, 2009 ... "Composition modulated alloy (CMA) electrodeposits of Zn-Co were produced from acid chloride baths by the single-bath technique. Their corrosion behavior was evaluated as a function of the switched cathode current densities and the number of layers," scientists writing in the Journal of ...
Study findings on nonlinear research are outlined in reports from I.S. Jesus and colleagues.
Apr 01, 2009 ... "In recent years, significant research in the field of electrochemistry was developed. The performance of electrical devices, depending on the processes of the electrolytes, was described and the physical origin of each parameter was established," scientists writing in the journal ...
New catalysis research findings from Inha University published.
Apr 01, 2009 ... According to recent research published in the journal Topics in Catalysis, "Stacked TS-1 [NSTS-1(MW)] has been prepared by microwave synthesis and applied to the epoxidation of linear olefins with H2O2 under mild conditions, and the epoxidation activities were compared with the non-stacked ...
Reports from University of California highlight recent research in photonics.
Apr 01, 2009 ... "An electromagnetically actuated optical scanner made using standard printed circuit board technology with integrated dynamic focusing feature is presented. Dynamic focus is achieved with an independently controlled plunger machined on the flame retardant-4 (FR4) platform," investigators ...
Reports by J.H. Bae and co-researchers describe recent advances in microelectronic engineering.
Apr 01, 2009 ... "Aqueous etchants used in traditional wet etching for the production of integrated circuits and MEMS devices hinder the processes and pose environmental difficulties. Therefore, we developed an improved dry etching method with HF/Pyridine (7:3) in supercritical carbon dioxide," researchers ...