Journal of Engineering back issues from March 2009:
Studies in the area of software engineering reported from University of Waterloo.
Mar 04, 2009 ... "Literature on the topic of code cloning often asserts that duplicating code within a software system is a bad practice, that it causes harm to the system's design and should be avoided. However, in our studies, we have found significant evidence that cloning is often used in a variety of ...
Scientists at University of Antwerp discuss research in atmospheric environment.
Mar 04, 2009 ... According to recent research from Antwerp, Belgium, "When considering the modelling of small particle dispersion in the lower part of the Atmospheric Boundary Layer (ABL) using Reynolds Averaged Navier Stokes simulations, the particle paths depend on the velocity profile and on the ...
Reports outline materials science study results from Sichuan University.(Report)
Mar 04, 2009 ... "In this study, nano-hydroxyapatite/polyamide 6 composite scaffold was prepared by phase separation and particle leaching combined method (PS/PL), and the scaffold, cultured with and without mesenchymal stem cells (MSCs), was investigated in vitro and in vivo. The scanning electron ...
Findings from University of Minnesota in engineering management reported.(Report)
Mar 04, 2009 ... "The increasingly important role that technologies play in today's business success is well known. To ensure proper selection and development of the key technologies, a deliberate technology plan is needed," scientists in the United States report. "In this paper, a strategic ...
Study data from University of Central Florida provide new insights into science.
Mar 04, 2009 ... "A new method based on diffusion-limited chemical etching has been developed for the productions of ordered arrays of curved microwells. Fiber-drawing nanomanufacturing is used to Make ordered glass composites with controlled structure and composition," scientists in the United States ...
Scientists at USA Scientific target coastal research.
Mar 04, 2009 ... According to a study from the United States, "Aspects of northern Gulf of Mexico (NGOM) (Louisiana, Mississippi, Alabama, and Florida panhandle) processes and barrier islands that are pertinent to their geomorphologic response are contrasted with the broader knowledge base summarized by ...
Research reports on physics from University of Colorado provide new insights.
Mar 04, 2009 ... "The hydrogen Lyman-alpha (Ly alpha) line, a major source of ionization of metals in the circumstellar disks of pre-main sequence (PMS) stars, is usually not observed due to absorption by interstellar and circumstellar hydrogen," scientists in the United States report. "We have ...
Researchers from University of Iceland publish new studies and findings in the area of earth sciences.
Mar 04, 2009 ... According to recent research from Iceland, "A small-aperture, strong-motion array, the ICEARRAY, has been deployed in South Iceland, a region with a history of destructive earthquakes, some exceeding magnitude 7. The array's purpose is: (1) monitoring future significant events in the ...
New nuclear science findings from Auburn University described.
Mar 04, 2009 ... According to recent research from the United States, "This work presents 3-D mixed-mode simulation results of single event transients (SET) in SiGe HBT emitter followers. The impact of circuit design parameters, including biasing current and resistance are detailed." "A simple ...
Studies from Ohio State University provide new data on mechanical design.(Report)
Mar 04, 2009 ... According to a study from the United States, "A simplified discrete model to predict load sharing among the planets of a planetary gear set having carrier planet position errors is presented in this study. The model proposes a translational representation of the torsional system and ...
Research from V. Vavourakis and co-authors in the area of computer-aided design published.(Report)
Mar 04, 2009 ... According to recent research from Greece, "In this paper, a new meshless Local Hypersingular Boundary Integral Equation method is presented for the analysis of two-dimensional elastostatic problems. The elastic domain is discretized by placing arbitrarily nodes on its boundary and ...
Findings in chemical engineering reported from Changwon National University.
Mar 04, 2009 ... "We report the particle size distribution of poly component particulate systems studied in three kinds of experimental methods. Six analyzers, such as Mastersizer Microplus (Malvern Instruments Ltd., UK), LS230 (Coulter Electronics Ltd., USA) LMS30 (Seishin, Japan), Analysette22 (Fritsch, ...
Researchers at University of Stuttgart target computational engineering.(Report)
Mar 04, 2009 ... According to recent research from Stuttgart, Germany, "To predict the sound radiation of structures, both a structural problem and an acoustic problem have to be solved. In case of thin structures and dense fluids, a strong coupling scheme between the two problems is essential, since the ...
Scientists at Queen's University detail research in engineering.
Mar 04, 2009 ... According to a study from North Ireland, "The bounded-degree minimum spanning tree (BDMST) problem has many practical applications. Unlike the unbounded case, the BDMST problem is NP-hard. and many attempts have been made to devise good approximation methods,. including evolutionary ...
Studies from Johns Hopkins University yield new information about materials engineering.
Mar 04, 2009 ... "Using the atomic force microscope (AFM) and orientation imaging microscopy (OIM), slip deformation of polycrystalline copper under cyclic loading was studied," researchers in the United States report. "It was found that under cyclic load the operating slip systems of coarse ...
New food engineering findings from B.S. Roopa and co-authors described.
Mar 04, 2009 ... According to recent research published in the Journal of Food Engineering, "Alginate gels were formed by varying the concentrations of sodium alginate (0-3%), calcium chloride (0-2%), pH (2-5), and temperature (0-40 degrees C) employing a second order central composite rotatable design ....
Studies from M.M. Goodwin et al in the area of audio engineering described.
Mar 04, 2009 ... "The realization of nondirectional linear electroacoustic arrays using Bessel weighting and other methods has been described in the literature. Generalized all-pass linear arrays are discussed," scientists in the United States report. "Since the far-field response of a uniformly ...
Research on mechanical engineering reported by scientists at University of Santiago.(Report)
Mar 04, 2009 ... According to a study from Spain, "In this paper, the contact between an elastic-viscoplastic body and a deformable obstacle is studied." "The effect of the damage, due to internal tension or compression and caused by the opening and growth of micro-cracks and micro-cavities, is ...
New structural engineering study findings recently were published by H.R. Ovesy and co-researchers.(Report)
Mar 04, 2009 ... According to a study from Iran, "This paper presents the theoretical developments of an exact finite strip for the buckling and initial post-buckling analyses of isotropic flat plates. The so-called exact finite strip is assumed to be simply supported out-of-plane at the loaded ends." ...
Research conducted at H. Park and co-researchers has updated our knowledge about nuclear engineering.
Mar 04, 2009 ... According to recent research from the United States, "This paper describes the development of a coupled space-angle a posteriori error analysis and adaptive method for radiation transport calculations based on the second-order, even-parity form of the transport equation discretized by a ...
Research from Shanghai Jiao Tong University broadens understanding of applied mechanics.(Report)
Mar 04, 2009 ... "In this paper, the design of a new viscous damper is presented and its mechanical characteristics are investigated experimentally. The motion equation of a system consisting of a drop machine and the damper is set up," scientists in Shanghai, People's Republic of China report. ...
Reports from Siemens AG add new data to research in electrical engineering.
Mar 04, 2009 ... "Liberalization has increased economic pressure on network operators, urging them to compromise between cost savings and supply reliability. In this context, the detailed and quantitative evaluation of supply reliability is gaining ever more importance-especially its application in ...
Studies from University of Mumbai have provided new information about polymer science.
Mar 04, 2009 ... "The isothermal crystallization kinetics, the morphology, and the melting behavior of melt-processed composites of poly(phenylene sulfide) (PPS) with a thermotropic liquid crystalline copolyester, Vectra A950, (TLCP) were studied by differential scanning calorimetry (DSC) and optical ...
Recent findings from University of Bristol highlight research in civil engineering.
Mar 04, 2009 ... According to recent research from Bristol, the United Kingdom, "Piled structures continue to fall during earthquakes despite being designed with the required safety factor against bending due to lateral loads." "This paper suggests that the reason for this may be that when the ...
Research in the area of chemical engineering reported from University of California.
Mar 04, 2009 ... According to a study from the United States, "Acyclic N-halamine structures have demonstrated antibacterial functions similar to cyclic N-halamine. Precursors of acyclic halamine such as acrylamide and methacrylamide can be easily grafted onto surfaces of substrates via radical ...
Researchers from Central South University describe findings in mechanical engineering.
Mar 04, 2009 ... According to a study from Changsha, People's Republic of China, "A three-phase composite cylinder model is utilized to study the elastic interaction between screw dislocations and embedded multiple circular cross-section inclusions (fibers) with imperfect interfaces in composites. By means ...
Recent findings in nuclear science described by researchers from University of Padua.
Mar 04, 2009 ... "We present the first charge loss model of heavy ion induced radiation damage on nanocrystal memory cells. The model takes into account the nanocrystal distribution non uniformity and the effect of different programming techniques, which may produce non uniform charging of the ...
Investigators at Sichuan University publish new data on chemical engineering.
Mar 04, 2009 ... According to recent research from Chengdu, People's Republic of China, "Poly(vinyl alcohol)-graft-lactic acid (PVA-g-LA) was synthesized by melt polycondensation of PVA and lactic acid using stannous chloride as a catalyst. The molecular structure of the copolymer was characterized by H-1 ...
New findings from P.L. Pereira and co-authors describe advances in engineering management.(Report)
Mar 04, 2009 ... According to recent research published in the journal IEEE Transactions on Engineering Management, "This paper presents a portfolio building process for large public and/or nonprofit research organizations. The proposed approach allocates a research and development (R&D) program budget, ...
Data from X.H. Zhang et al provide new insights into materials engineering.
Mar 04, 2009 ... "Densification of TaC was enhanced while the grain growth was suppressed by adding 1 or 2wt% B4C, which allowed mechanical properties to be analyzed. A relative density of >98% was achieved for TaC with B4C additions by hot pressing at 2100 degrees C. By comparison, additive-free TaC could ...
Research from K.P. Ziock and co-authors yields new data on nuclear science.
Mar 04, 2009 ... According to recent research published in the journal IEEE Transactions on Nuclear Science, "We have constructed a unique instrument for use in the search for orphan sources. The system uses gamma-ray imaging to ''see through'' the natural background variations that effectively limit the ...
New findings in nuclear science described from California Institute of Technology.
Mar 04, 2009 ... "The degradation of the LM193 dual voltage comparator has been studied at different TID dose rate profiles, including several different constant dose rates and a variable dose rate that simulates the behavior of a solar flare. A comparison of results following constant dose rate vs ....
Research from J. Barak and co-researchers provides new data on nuclear science.
Mar 04, 2009 ... "Switching circuits, which use commercial off the shelf n-channel power MOSFETs, can be damaged by single event burnout (SEB). To prevent burnout events, we propose to replace the single power MOSFET in these circuits by two power MOSFETs connected in series and switched together," ...
Study data from Kadir Has University update knowledge of chemical engineering.
Mar 04, 2009 ... "Drying experiments of polyacrylamide (PAAm) gels were performed using steady-state fluorescence (SSF) spectrometer. Pyranine (P) was introduced as a fluorescence probe and intensity of P from various crosslinker content gel samples was monitored," researchers in Istanbul, Turkey report. ...
Reports from Jiangsu University highlight recent research in mechanical engineering.
Mar 04, 2009 ... "This paper investigates the Zener-Stroh crack with curved configuration in plane elasticity. A singular integral equation is suggested to solve the problem," investigators in Zhenjiang, People's Republic of China report. "Formulae for evaluating the SIFs and T-stress at the ...
Research on chemical engineering discussed by scientists at Shiraz University.
Mar 04, 2009 ... According to recent research from Iran, "In this work, theoretical investigation has been used to evaluate the performance, optimal operating conditions and increasing the aromatic production in a Pd-Ad membrane reactor for catalytic naphtha reforming. A reactor configuration has been used ...
Researchers from Hongik University report details of new studies and findings in the area of chemical engineering.
Mar 04, 2009 ... "The osmotic pressures of aqueous bovine serum albumin (BSA) solutions were measured at different pH (3.6, 4.6, 5.6, and 7.6) in combination with different concentrations (0.01 M, 0.1 M, 1 M, and 3 M) of salts (sodium, pottasium, and lithum) by using a Wescor colloid membrane osmometer," ...
Reports from Chungnam National University advance knowledge in chemical engineering.
Mar 04, 2009 ... "Depolymerization of polycarbonate waste by glycolysis using ethylene glycol without catalyst was explored in order to get the monomer bisphenol A (BPA). The depolymerized products were identified by GC/MS and FTIR spectroscopy," scientists in South Korea report. "The effects of ...
Scientists at China University describe research in materials engineering.
Mar 04, 2009 ... According to recent research published in the journal Materials Science and Engineering a - Structural Materials Properties Microstructure and Processing, "A nanophase composite of Al-10 wt%Pb alloy was prepared by mechanical alloying. The coarsening behavior of Pb phase in the composite ...
Ford Receives Michigan Tax Credits for Future Electric Vehicles, Battery Development.
Mar 04, 2009 ... Ford Motor Company (NYSE:F) received a $55 million incentive from the Michigan Economic Development Corporation (MEDC) for its work in advanced battery and electrical vehicle development. Ford will receive refundable tax credits through the new Michigan Advanced Battery Credits initiative, ...
EWI Launches New EWI OnsiteEngineer Service.
Mar 04, 2009 ... EWI announced its new professional engineering service, called EWI OnsiteEngineer(SM). The new offering provides clients with EWI engineers and technicians in weekly increments to support the clients' design, advanced manufacturing, and quality engineering needs. Henry Cialone, ...
Oita University publishes research in chemical engineering.
Mar 04, 2009 ... "SF6 decomposed stably over APO(4), CePO4, YPO4, and Zr-3(PO4)(4) at 800-1000 K, but Ca2P2O7, Mg2P2O7, and Sr2P2O7 were less active. Active catalysts crystallized during the reaction," researchers in Oita, Japan report. "SO3, SO2F2, and HF were obtained as major products. SO3 ...
New nuclear science research reported from University of Montpellier.
Mar 04, 2009 ... According to a study from Montpellier, France, "Current technologies are sensitive to low Linear Energy Transfer particles such as alphas. These particles can be spontaneously produced by some radioactive elements, called alpha-emitters." "Here, we investigate two examples of ...
New findings from Arizona State University describe advances in nuclear science.
Mar 04, 2009 ... "Static random access memory (SRAM) cells have diminishing read and write margins due to fabrication variations. These variations are a direct result of the small device sizes necessary to maintain scaling commensurate with Moore's law," investigators in the United States report. ...
Studies from Vanderbilt University yield new information about nuclear science.
Mar 04, 2009 ... According to recent research published in the journal IEEE Transactions on Nuclear Science, "The minimum laser energy required to cause sustained harmonic oscillations in a 201-stage ring oscillator varies little with increasing power supply voltage when operating in the subthreshold ...
Research from Delft University of Technology has provided new information about software engineering.
Mar 04, 2009 ... "Requirements views, such as coverage and status views, are an important asset for monitoring and managing software development projects. We have developed a method that automates the process of reconstructing these views, and we have built a tool, REQANALYST, that supports this method," ...
New research on chemical engineering from Kansai University summarized.
Mar 04, 2009 ... According to recent research from Osaka, Japan, "Mesoporous silica microspheres (MSM) approximately 1.0 mu m in diameter were prepared by the hydrolysis and condensation of tetraethoxysilane (TEOS) under the presence of dodecylamine (DDA) as a molecular template and catalyst in ...
Studies conducted at Chonbuk National University on chemical engineering recently published.
Mar 04, 2009 ... According to a study from South Korea, "A pervaporation process for producing anhydrous ethanol from industrial ethyl alcohol (95% v/v) was performed with a commercial PVA/PAN membrane. A central composite rotatable experimental design together with response surface methodology was ...
Researchers from University of Toronto report on findings in nuclear science.
Mar 04, 2009 ... According to a study from Toronto, Canada, "Laboratory studies have shown that ecological interfaces can enhance operator performance in process control. However, limited verification and validation studies in representative settings are impeding the adoption of the Ecological Interface ...
Studies from J.H. Warner and co-authors have provided new information about nuclear science.
Mar 04, 2009 ... According to a study from the United States, "Electrical and structural changes in GaAs are monitored using electron beam induced current (EBIC) and transmission electron microscopy (TEM) measurements after irradiation by protons and silicon ions." "It has been determined that ...
Jacobs Receives Program Management Contract From the U.S. Marine Corps for Motor Transport Support Services.
Mar 04, 2009 ... Jacobs Engineering Group Inc. (NYSE:JEC) announced that it received a task order from the Marine Corps Ground Transportation and Engineer Systems Product Group at the Marine Corps Systems Command, Quantico, Va. Awarded under the Commercial Enterprise Omnibus Support Services ...
Investigators at Chung-Ang University target chemical engineering.
Mar 04, 2009 ... According to recent research published in the journal Industrial & Engineering Chemistry Research, "To improve the photoluminescence and long-term stability of the Y2O2S:Eu3+ phosphor, surface coatings with silica nanoparticles and poly(methyl methacrylate) (PMMA)-silica nanocomposites ...
Reports summarize food engineering research from C.C. Lien and co-authors.
Mar 04, 2009 ... "A non-destructive method for assessing the maturity of tomatoes was developed using the mechanical properties of the fruit under the failing impact test. The levels of maturity were classified with cluster and discriminant analyses on the primitive impact measurements and their ...
Data on nuclear science described by researchers at University of Padua.
Mar 04, 2009 ... "Heavy-ion irradiation of NAND flash memories under operating conditions leads to errors with complex, data-dependent signatures," investigators in Padua, Italy report. "We present upsets due to hits in the floating gate array and in the peripheral circuitry, discussing their ...
New chemical engineering research from University of Coimbra discussed.
Mar 04, 2009 ... According to a study from Coimbra, Portugal, "Visual appearance is an important feature in the quality assessment of food products, since it plays a key role in the decisions made by consumers. Frequently, its evaluation is carried out by a panel of experts from the quality department who ...
Research results from University of Patras, Medical Department update knowledge of nuclear science.(Report)
Mar 04, 2009 ... "The aim of this study was to examine Gd2O2S:Eu (also known as GOS:Eu) powder scintillator under X-ray mammography imaging conditions. For this purpose, three scintillator screens with coating thicknesses of 33.1, 46.4 and 63.1 mg/cm(2) were prepared in our laboratory by sedimentation of ...
Reports outline chemical engineering study findings from V.G. Chibante and colleagues.
Mar 04, 2009 ... According to recent research from Oporto, Portugal, "Recirculating cyclone systems, combining a numerically optimized reverse flow gas cyclone (RS_VHE geometry) with a straight-through cyclone concentrator, were employed as reaction chambers for the dry scrubbing of gaseous hydrogen ...
Studies from Kwangwoon University have provided new data on chemical engineering.(Report)
Mar 04, 2009 ... "The water gas shift (WGS) reaction has been investigated widely in fuel cell technologies due to the potential for high fuel efficiency and lower emissions during the production of pure hydrogen," scientists writing in the Korean Journal of Chemical Engineering report. ...
Findings in nuclear science reported from O. Gilard and co-researchers.
Mar 04, 2009 ... "Commercial Off-The-Shelf Charge Coupled Devices were irradiated with protons at energies ranging from 17 MeV to 200 MeV. Evolution of the dark current distribution during irradiation is discussed," scientists in Toulouse, France report. "A general method is presented to predict ...
Research on materials engineering described by S. Candan and colleagues.
Mar 04, 2009 ... "Mechanical properties and corrosion behaviour of AZ91 magnesium alloy containing 0.2-1.0 wt.% Pb were investigated," scientists writing in the journal Materials Science and Engineering a - Structural Materials Properties Microstructure and Processing report. "An enhancement of ...
University of Montpellier reports research in nuclear science.
Mar 04, 2009 ... According to a study from Montpellier, France, "It is shown that the variety of shapes of the input current versus dose curve observed in several ICs is due to circuit effects, depending on the architecture, the value of the currents and the bias conditions. When stages are cascaded, the ...
Studies from Sogang University further understanding of chemical engineering.
Mar 04, 2009 ... "A group contribution version of the nonrandom lattice fluid equation of state (NLF-GC EOS) has been used to predict the vapor-liquid phase equilibria (VLE) of esters and their mixtures. The investigated esters were divided into groups according to the contribution scheme," researchers in ...
New engineering management study findings have been reported by scientists at George Washington University.
Mar 04, 2009 ... According to a study from the United States, "A pragmatic procedure is suggested to determine the size of a project's, a program's, or a system's risk contingency budget at any specified level of certainty, e.g., 99% confidence. The size of the budget is a function of the number of risks ...
Atlas Copco strengthens focus on Chicago Pneumatic brand.
Mar 04, 2009 ... Regulatory News: Atlas CopcoEs (STO:ATCOA) (STO:ATCOB) Industrial Technique business area has decided to merge its Chicago Pneumatic Vehicle Service and Industrial divisions. Creating significant customer benefits, the reorganization follows other measures within the Group to leverage the ...
Researchers at Yeungnam University release new data on chemical engineering.
Mar 04, 2009 ... According to a study from South Korea, "Nanometer-sized bismuth tungsten oxides, Bi(2)WO(6)s, were successfully synthesized by hydrothermal treatment at 200 degrees C for 24 hr, and their morphologies and crystallite sizes were influenced by adjusting the conditions to pH 4, 7, and 9. TEM ...