Electronics Newsweekly back issues from June 2009:
Studies conducted at University of Cambridge on science recently published.(Report)
Jun 03, 2009 ... "In this paper, we present a novel metric for evaluation of image fusion algorithms, based on evaluation of similarity of regions in images to be fused with the corresponding regions in the fused image," investigators in Cambridge, the United Kingdom report. "The metric uses ...
New science research has been reported by scientists at New York University.
Jun 03, 2009 ... "This paper investigates the perceptual quality of video affected by packet losses. We focus on low-resolution and low bit-rate video coded by the H.264/AVC encoder and the packet loss patterns likely in low bit-rate wireless networks," scientists writing in the IEEE Journal of Selected ...
Reports outline science study results from K. Kathiravan et al.(Report)
Jun 03, 2009 ... "Broadcast has been widely used in Mobile Ad Hoc Networks (MANETs) to disseminate information to all reachable nodes. However, the conventional broadcast scheme using simple flooding mechanism suffers from broadcast storm problem characterised by excessive amount of redundant traffic, ...
New science study findings have been reported by G.Q. Liu and co-researchers.
Jun 03, 2009 ... According to recent research from Beijing, People's Republic of China, "We obtain the chemical abundances of six barium stars and two CH subgiant stars based on the high signal-to-noise ratio and high resolution Echelle spectra." "The neutron capture process elements Y, Zr, Ba, ...
Research from Carnegie Mellon University in science provides new insights.(Report)
Jun 03, 2009 ... According to recent research from the United States, "This paper aims to evaluate the aesthetic visual quality of a special type of visual media: digital images of paintings. Assessing the aesthetic visual quality of paintings can be considered a highly subjective task." ...
Scientists at University of Wisconsin detail research in science.
Jun 03, 2009 ... According to a study from the United States, "Mixture properties of the transient fuel spray injected by group-hole nozzles were quantitatively studied in a constant volume chamber via the laser absorption scattering (LAS) technique, and compared with conventional single-hole nozzles ....
Investigators at USA Scientific target science.(Report)
Jun 03, 2009 ... "This paper introduces a nonlinear correlation coefficient that exploits isotonic (or monotonic) regression. We refer to this correlation coefficient as the monotonic correlation (MC)," scientists writing in the IEEE Journal of Selected Topics in Signal Processing report. "This ...
Research on science discussed by A. Ninassi and co-researchers.(Report)
Jun 03, 2009 ... According to recent research from France, "The temporal distortions such as flickering, jerkiness, and mosquito noise play a fundamental part in video quality assessment. A temporal distortion is commonly defined as the temporal evolution, or fluctuation, of the spatial distortion on a ...
Research from University of Sheffield yields new data on science.
Jun 03, 2009 ... According to a study from Sheffield, the United Kingdom, "To elucidate the influence of shear flow on the generation of magnetic fields through the modification of turbulence property, we consider the case where a large-scale magnetic field is parallel to a large-scale shear flow without ...
Studies by A.H. Zhou and co-authors describe new findings in science.
Jun 03, 2009 ... "The maximum flux density of a gyrosynchrotron radiation spectrum in a magnetic diploe model with self absorption and gyroresonance is calculated. Our calculations show that the maximum flux density of the gyrosynchrotron spectrum increases with increasing low-energy cutoff, number ...
Data on mechanical science published by researchers at State University of New York.(Report)
Jun 03, 2009 ... "In this paper we study the evolution of the underlying microstructure in hyperelastic laminates subjected to finite deformations. To this end, we identify a set of relevant microstructural variables and derive rigorous formulae for their evolution along finite-deformation paths," ...
New science research from Northwestern University discussed.
Jun 03, 2009 ... According to a study from the United States, "Analytical self-energies for molecular interfaces with one-dimensional, tight-binding semiconductors are derived, along with analytical solutions to the electrode eigensystems. These models capture the fundamental differences between the ...
Recent findings from University of California highlight research in science.
Jun 03, 2009 ... According to recent research from the United States, "The task of extracting objects in video sequences emerges in many applications such as object-based video coding (e.g., MPEG-4) and content-based video indexing and retrieval (e.g., MPEG-7). The MPEG-4 standard provides specifications ...
Studies in the area of science reported from University of Surrey.
Jun 03, 2009 ... According to recent research from Guildford, the United Kingdom, "In the near future, many conventional video applications are likely to be replaced by immersive video to provide a sense of ''being there.'' This transition is facilitated by the recent advancement of 3-D capture, coding, ...
Research from University of Texas has provided new data on science.(Report)
Jun 03, 2009 ... "Reduced-reference image quality assessment (RRIQA) methods estimate image quality degradations with partial information about the ''perfect-quality'' reference image. In this paper, we propose an RRIQA algorithm based on a divisive normalization image representation," investigators in the ...
Investigators at Technical University of Munich have published new data on science.
Jun 03, 2009 ... According to a study from Munich, Germany, "This contribution presents a no-reference video quality metric, which is based on a set of simple rules that assigns a given video to one of four different content classes. The four content classes distinguish between video sequences which are ...
Researchers from University of Erlangen report details of new studies and findings in the area of science.
Jun 03, 2009 ... "The measurement of video quality for lossy and low-bitrate network transmissions is a challenging topic. Especially, the temporal artifacts which are introduced by video transmission systems and their effects on the viewer's satisfaction have to be addressed," researchers in Erlangen, ...
Reports outline science study findings from Nanjing University.
Jun 03, 2009 ... According to recent research from Nanjing, People's Republic of China, "Lorentz invariant violation (LIV) test is important for studying modem physics. All the known astrophysical constraints either have a very small examinable parameter space or are only suitable for some special ...
Reports summarize science research from D. Mitra and co-authors.
Jun 03, 2009 ... According to recent research published in the Astrophysical Journal Letters, "Forty years have passed since the discovery of pulsars, yet the physical mechanism of their coherent radio emission is a mystery. Recent observational and theoretical studies strongly suggest that the radiation ...
Researchers from University of Texas detail new studies and findings in the area of science.
Jun 03, 2009 ... "Recent image quality assessment (IQA) metrics achieve high correlation with human perception of image quality. Naturally, it is of interest to produce even better results," scientists in the United States report. "One promising method is to weight image quality measurements by ...
Research from University of Toulouse yields new data on science.
Jun 03, 2009 ... "The aim of this article is to study the k-nearest neighbour (kNN) method in nonparametric functional regression," scientists in Toulouse, France report. "We present asymptotic properties of the kNN kernel estimator: the almost-complete convergence and its rate. Then, we ...
Scientists at Tsinghua University detail research in rapid prototyping.
Jun 03, 2009 ... "Cu-ZrB2 shell electrodes were fabricated by composite electroforming to improve the spark-resistance of the electrical discharge machining (EDM) electrodes made by rapid tooling. Design/methodology/approach - Cu-ZrB2 shell electrodes were fabricated using composite electroforming, ...
Reports summarize radiation research research from D. Stratakis and co-authors.(Report)
Jun 03, 2009 ... According to recent research published in the journal Radiation Protection Dosimetry, "One of the most common and popular practices on measuring the non-ionising electric and/or magnetic field strength employs field meters and the appropriate electric and/or magnetic field strength ...
Findings in computer-aided design reported from University of Tokyo.(Report)
Jun 03, 2009 ... According to recent research from Tokyo, Japan, "This paper describes a large-scale finite element analysis (FEA) for a high-frequency electromagnetic field of Maxwell equations including the displacement current. A stationary Helmholtz equation for the high-frequency electromagnetic field ...
Reports outline analytical science study findings from V.P. Yakushev and colleagues.
Jun 03, 2009 ... According to recent research from Russia, "A high-voltage pulse generator producing pulses with a stable flat top is described." "It is based on a multistage amplitude discriminator with inductance coils. The generator produces pulses with an amplitude of up to -20 kV, a top ...
Research from University of Tokyo broadens understanding of chemical research.
Jun 03, 2009 ... According to recent research from Hongo, Japan, "The photoelectrochemical properties of a GaN:ZnO solid solution coated as an electrode on conductive glass arc investigated through measurement of voltammograms and current-time curves. The highest photocurrent was achieved by a GaN:ZnO ...
Reports summarize applied mechanics study results from University of California.
Jun 03, 2009 ... According to a study from the United States, "A theoretical analysis of the effects of a magnetic field on the dynamics of a thin nonuniform conducting film of an incompressible viscous fluid on a rotating disk has been considered. A nonlinear evolution equation describing the shape of the ...
Findings from G.J. Vanberkel et al in rapid mass spectrometry reported.
Jun 03, 2009 ... According to recent research from the United States, "This paper reports on the conversion of a liquid microjunction surface sampling probe (LMJ-SSP) into a two-electrode electrochemical cell using a conductive sample surface and the probe as the two electrodes with an appropriate battery ...
Research results from Yonsei University update knowledge of planetary science.
Jun 03, 2009 ... "The ray-based spectral parameterization of convective gravity wave drag, which explicitly calculates the gravity wave propagation properties, is validated against the Microwave Limb Sounder (MLS) on the Upper Atmosphere Research Satellite (UARS). Offline calculations of the ray-based ...
Researchers at Wichita State University publish new data on fluids engineering.
Jun 03, 2009 ... According to recent research from the United States, "A new dielectrophoretic force-induced parallel-plate assembly technique was used to achieve close-packed 2D large colloidal photonic crystals on gold electrodes (similar to 200 nm thick). The electrodes were patterned on a glass ...
New vehicular technology research from University of Stellenbosch discussed.
Jun 03, 2009 ... "Although the quadrature mixing radio front-end offers an attractive way to perform frequency translation, its image-rejection capability is severely affected by the gain and phase imbalances (I/Q imbalances) between its two analog signal paths. Digital signal processing techniques have ...
Research from N.C. Chauhan and co-authors reveals new findings on science.(Report)
Jun 03, 2009 ... "In this paper, a modified particle swarm optimization (PSO) algorithm is presented and its applicability is shown for the design of specific microwave filter as a case study of microwave components. In the proposed modified PSO algorithm, particles in the swarm are divided to form ...
New findings from M. Naushad and co-authors in the area of materials science published.
Jun 03, 2009 ... "An inorganic cation exchanger, aluminum tungstate (AT), has been synthesized by adding 0 center dot 1 M sodium tungstate gradually into 0 center dot 1 M aluminium nitrate at pH 1 center dot 2 with continuous stirring. The ion exchange capacity for Na+ ion and distribution coefficients of ...
New findings from University of Bristol describe advances in optical physics.
Jun 03, 2009 ... According to recent research from Bristol, the United Kingdom, "A III-V semiconductor photonic crystal (PhC) waveguide is integrated into a semiconductor optical amplifier (SOA); this has the potential to reshape pulses that are distorted and chirped on propagation through the SOA. The PhC ...
Data on astrophysics discussed by A. Dinculescu and colleagues.
Jun 03, 2009 ... "The objective of this paper is to draw attention to the close similarity between the observable universe and the photon mean free path sphere," researchers in the United States report. "It is hoped that by analyzing in depth this apparent connection one will be able to explain ...
Research reports from K. Balasubadra and co-authors provide new insights into nanoscience.
Jun 03, 2009 ... "A new numerical noise model for uniformly doped GaAs MESFET photodetector has been proposed, which is compatible with small signal equivalent circuit and large signal current voltage characteristics. A model has been developed for computation of different noises such as shot noise, ...
Research by W. Shi and colleagues in plasma science provides new insights.
Jun 03, 2009 ... According to recent research from Xian, People's Republic of China, "Based on the characteristics of the GaAs photoconductive semiconductor switch (PCSS) and the spark gap, a new combined switch is developed. The combined switch integrates a traditional GaAs PCSS and a normal spark gap, ...
New findings from J.D. Steill and co-authors in the area of physical chemistry published.
Jun 03, 2009 ... According to recent research from Netherlands, "We report on a form of gas-phase anion action spectroscopy based on infrared multiple photon electron detachment and subsequent capture of the free electrons by a neutral electron scavenger in a Fourier transform ion cyclotron resonance ...
Research on superconductivity detailed by F.Z. Ding and co-authors.
Jun 03, 2009 ... According to a study from Beijing, People's Republic of China, "Using a novel DC magnetron sputtering system, high quality YBa2Cu3O7-delta (YBCO) thin films were deposited on both sides of twelve pieces of 3-inch LaAlO3(001) single crystal substrates in one batch. This sputtering system ...
Investigators at University of Porto release new data on manufacturing technology.
Jun 03, 2009 ... According to recent research published in the International Journal of Advanced Manufacturing Technology, "The aim of this article is to show that the black layer composition varies with an interaction of electrical discharge machining (EDM) input parameters, which affects the electrode ...
Scientists at University of Allahabad target applied physics.
Jun 03, 2009 ... According to a study from Allahabad, India, "We have studied spontaneous polarization, switching time and dielectric parameters (namely dielectric strength, relaxation frequency, distribution parameter) of a 5 mu m thick planar oriented sample of a highly tilted anti-ferroelectric liquid ...
New data from Medical College of Wisconsin, Medical College illuminate research in applied magnetic resonance research.
Jun 03, 2009 ... According to a study from the United States, "An analytic circuit model for slot coupling from a waveguide to a loop-gap resonator (LGR) in a context of electron paramagnetic resonance (EPR) spectroscopy is presented. The physical dimensions of the waveguide, iris, LGR, and aqueous sample ...
Research conducted at Clemson University has updated our knowledge about biomedical engineering.
Jun 03, 2009 ... According to a study from the United States, "The use of microlithographically fabricated Microdisc Electrode Arrays (MDEAs) in the development of implantable voltammetric biosensors necessitates design criteria that balances the overall footprint of the device with the advantages to be ...
Findings from University of Kuopio broaden understanding of hydrology.
Jun 03, 2009 ... "We describe a novel application for a microwave on-line sensor to measure the total solids (TS) load entering a municipal wastewater treatment plant (WWTP) from slaughterhouse sewage and some sanitary wastewaters. Measuring this kind of wastewater stream is very challenging, because it ...
Studies from M. Dahbi and co-authors have provided new information about electrochemical research.
Jun 03, 2009 ... "A crystalline LiNi0.65Co0.25Mn0.10O2 electrode material was synthesized by the combustion method at 900 degrees C for 1 h. Rietveld refinement shows less than 3% of Li/Ni disorder in the structure. Lithium extraction involves only the Ni2+/Ni4+ redox couple while Co3+ and Mn4+ remain ...
New findings from L.K. Pandey and co-researchers in the area of organic chemistry described.
Jun 03, 2009 ... According to recent research published in the Indian Journal of Chemistry Section B - Organic Chemistry Including Medicinal Chemistry, "A convenient, highly efficient, safe microwave-mediated S-alkylation of O, O'-dialkyl thiophosphate has been reported." "Clean and rapid ...
New micromechanics and microengineering study findings recently were published by researchers at University of Tokyo.
Jun 03, 2009 ... "This paper covers innovative results on the development of an electrostatically actuated mechanical switch device made of a microfibrillated cellulose sheet coated with a thin polyimide layer. For microelectronic applications, biodegradable and biocompatible nanomaterials such as ...
New lightwave technology research from University of Bristol outlined.
Jun 03, 2009 ... "This paper demonstrates an optical node that simultaneous carries out multicast optical switching and all-optical label swapping," scientists in Bristol, the United Kingdom report. "While the optical payload is being forwarded by a fast optical switch matrix, the optical label ...
Studies from S.R. Joshi et al add new findings in the area of power systems.
Jun 03, 2009 ... "Subsynchronous resonance (SSR) performance of various control schemes of a thyristor controlled series compensator (TCSC) has been studied in the previous literature using digital simulation based analyses. With the availability of a modular, high bandwidth (six-sample per cycle), ...
New theoretical physics research has been reported by M.S. Pshirkov et al.
Jun 03, 2009 ... According to a study from Russia, "We propose a new method to detect observational appearance of dark matter axions. The method utilizes radio observations of neutron stars." "It is based on the conversion of axions to photons in strong magnetic fields of neutron stars (the ...
Research on modern physics detailed by scientists at Banaras Hindu University.
Jun 03, 2009 ... According to recent research from Varanasi, India, "Using a thermodynamic model based on the generalized Landau free-energy density expansion,we investigate the influence of hydrostatic pressure on the spontaneous polarization and tilt angle of ferroelectric chiral smectic C (Sm C*) phase ...
New findings in chemical communications described from Shanghai Jiao Tong University.
Jun 03, 2009 ... According to recent research from Shanghai, People's Republic of China, "An microband electrode array (MBEA) of a boron-doped diamond (BDD) film was prepared by using the hot-filament chemical vapor deposition (HF-CVD) technique and micro-fabrication process with a standard ...
Data on macromolecular research published by researchers at Texas A&M University.
Jun 03, 2009 ... "The synthesis and characterization of second- and third-generation triazine dendrimers bearing carboxylic acid groups on the periphery are reported. These materials were synthesized by exhaustive succinylation of amine-terminated dendrimers," investigators in the United States report. ...
New findings from D. Zhou and co-researchers in the area of ceramics described.
Jun 03, 2009 ... "The influence of B2O3-CuO addition on the sintering behavior, phase composition, microstructure and microwave dielectric properties of BiSbO4 ceramic have been investigated," researchers in Xian, People's Republic of China report. "The BiSbO4 Ceramics can be well densified to ...
Scientists at Sichuan University report research in macromolecular science.
Jun 03, 2009 ... According to a study from Chengdu, People's Republic of China, "Microwave-assisted synthesis of poly(L-lactic acid)-poly(ethylene glycol) copolymers(PLEG) by single-step polycondensation of L-lactic acid and poly(ethylene glycol) has been studied. The synthetic conditions, including ...
New astronomy research reported from University of Pune.
Jun 03, 2009 ... According to recent research from Pune, India, "Radio frequency interference (RFI) is the principal factor limiting the sensitivities of radio telescopes, particularly at frequencies below 1 GHz. I present a conceptually new approach to mitigation of RFI in interferometric data." ...
New electroanalytical chemistry research reported from University of Barcelona.
Jun 03, 2009 ... "A novel electrochemical method, based on differential pulse voltammetry (DPV) in a rotating Au-disk electrode, is proposed to study Hg2+ binding with various ligands. It consisted in applying a previous deposition potential that allowed the adsorption of Hg2+ ions and/or their complexes ...
Researchers from Bu-Ali Sina University describe findings in physics.
Jun 03, 2009 ... "The similarity solution for the steady two-dimensional flow of an incompressible viscous and electrically conducting fluid over a non-linearly semi-infinite stretching sheet in the presence of a chemical reaction and under the influence of a magnetic field gives a system of non-linear ...
Researchers from Chungbuk National University discuss findings in ferroelectrics.
Jun 03, 2009 ... According to a study from South Korea, "Piezoelectric ceramics, constituting an active element, make a stator vibrate generating a rotational force in ultrasonic motors. In the drive of ultrasonic motors, many factors exist that can affect the resonance characteristics of piezoelectric ...
Study results from University of Quebec in the area of civil engineering published.
Jun 03, 2009 ... According to recent research from Canada, "The present study investigates the electrocoagulation treatment of two different wastewaters, namely sawmill wastewater and ship waste effluent, charged with organic matter. Monopolar electrode configuration was studied for both types of effluents ...
Scientists at National Environmental Satellite, Data, and Information Service detail research in climate research.
Jun 03, 2009 ... According to recent research published in the Journal of Climate, "The Microwave Sounding Unit (MSU) onboard the National Oceanic and Atmospheric Administration polar-orbiting satellites measures the atmospheric temperature from the surface to the lower stratosphere under all weather ...
Investigators at University of Lisbon have published new data on condensed matter.
Jun 03, 2009 ... According to recent research from Lisbon, Portugal, "The magnetic properties of Ar- and N-implanted single crystalline TiO2 rutile were studied and correlated with the induced disorder in order to clarify the influence of defects in the magnetic behaviour." "Nominal fluences of ...
Researchers from Fujian Normal University describe findings in porous materials.
Jun 03, 2009 ... According to recent research published in the Journal of Porous Materials, "La-Ce-silica mesoporous SBA-15-type material has been rapidly synthesized using microwave technique and characterized by XRD, FT-IR, DRS, and low temperature N-2 adsorption-desorption measurement." "The ...
Researchers at University of Strathclyde have published new data on artificial intelligence.
Jun 03, 2009 ... "The management of power substations is a challenging task, with two opposing criteria: to reduce wear-and-tear on equipment and to ensure the voltage remains within a specified range. At present, a two-stage process is used," investigators in Scotland report. "Voltage targets ...
University of Pittsburgh reports research in imaging.
Jun 03, 2009 ... "Identification of pulmonary fissures, which form the boundaries between the lobes in the lungs, may be useful during clinical interpretation of computed tomography (CT) examinations to assess the early presence and characterization of manifestation of several lung diseases. Motivated by ...