Cloud‐Based Gaming Service Platform Supporting Multiple Devices

To implement a cloud game service platform supporting multiple users and devices based on real‐time streaming, there are many technical needs, including game screen and sound capturing, audio/video encoding in real time created by a high‐performance server‐generated game screen, and real‐time streaming to client devices, such as low‐cost PCs, smart devices, and set‐top boxes. We therefore present a game service platform for the running and management of the game screen, as well as running the sound on the server, in which the captured and encoded game screen and sound separately provide client devices through real‐time streaming. The proposed platform offers Web‐based services that allow game play on smaller end devices without requiring the games to be installed locally.     

Effects of internal electrode composition on the reliability of low-firing PMN–PZT multilayer ceramic actuators

We investigated the effects of internal electrode composition on the reliability of low-firing multilayer ceramic actuators using Ag internal electrodes. Ag–ceramic composite pastes were prepared by adding Pb(Mg_1/3Nb_2/3)O₃–Pb(Zr_0.475,Ti_0.525)O₃ (PMNZT) ceramic powders to a commercial Ag paste at concentrations in the range of 0–60 vol%. PMNZT multilayered laminates were fabricated using tape casting, and then cofired at 925 °C for 10 h. The fatigue behaviors of multilayer actuators with Ag internal electrodes having different PMNZT concentrations were compared by applying a 2 kV/mm ac electric field at 50 °C under a relative humidity of 30%. The failure data were analyzed using Weibull statistics. The addition of PMNZT ceramics enhanced the mean time to failure by reducing the densification mismatch between the piezoelectric ceramic and internal electrode layers during the cofiring process.     

Application of Empirical Mode Decomposition (EMD) on DaTSCAN SPECT images to explore Parkinson Disease

Parkinsonism is the second most common neurodegenerative disorder. It includes several pathologies with similar symptoms, what makes the diagnosis really difficult. I-ioflupane allows to obtain in vivo images of the brain that can be used to assist the PS diagnosis and provides a way to improve its accuracy. In this paper a new method for brain SPECT image feature extraction is shown. This novel Computer Aided Diagnosis (CAD) system is based on the Empirical Mode Decomposition (EMD), which decomposes any non-linear and non-stationary time series into a small number of oscillatory Intrinsic Mode Functions (IMF) a monotonous Residuum. A 80-DaTSCAN image database from the “Virgen de las Nieves” Hospital in Granada (Spain) was used to evaluate this method, yielding up to 95% accuracy, which greatly improves the baseline Voxel-As-Feature (VAF) approach.     

Cold-temperature deformation of nano-sized tungsten and niobium as revealed by in-situ nano-mechanical experiments

We constructed and developed an in-situ cryogenic nanomechanical system to study small-scale mechanical behavior of materials at low temperatures.Uniaxial compression of two body-centered-cubic(bcc)metals,Nb and W,with diameters between400 and 1300 nm,was studied at room temperature and at 165 K.Experiments were conducted inside of a Scanning Electron Microscope(SEM)equipped with a nanomechanical module,with simultaneous cooling of sample and diamond tip.Stress-strain data at 165 K exhibited higher yield strengths and more extensive strain bursts on average,as compared to those at 298 K.We discuss these differences in the framework of nano-sized plasticity and intrinsic lattice resistance.Dislocation dynamics simulations with surface-controlled dislocation multiplication were used to gain insight into size and temperature effects on deformation of nano-sized bcc metals.     

Change in isoflavone concentration of soybean (Glycine max L.) seeds at different growth stages

This study was conducted to determine the fluctuating levels of isoflavone in soybean (Glycine max L.) seeds of six varieties at different development stages. The average concentration of total isoflavone in the fully matured seed was 669 µg g^?1, whereas those in the seeds of the R5 (beginning), R6 (green full‐sized) and R7 (onset of physiological maturity) stages were 145, 296 and 611 µg g^?1, respectively. Sowonkong variety was highest in total isoflavone content of the fully matured and the R7 seed among all the varieties. In all six varieties, total isoflavone levels at the R7 stage were higher than those of R5 and R6 stages. Total isoflavone concentrations rapidly increased as growth stages transitioned from R5 to R7, as indicated by a positive correlation (r = 0.80***) between the total isoflavone and growth stages. Overall, total isoflavone levels were similar between R7 and the full maturity stages. Of the various isoflavone derivatives, acetylglucoside and aglycon were not significantly correlated with total isoflavone concentrations. However, glucoside (r = 0.97***), malonylglucoside (r = 0.99***), TGIN (genistein + genistin + malonylgenistin + acetylgenistin, r = 0.93***) and TDIN (daidzein + daidzin + malonyldaidzin + acetyldaidzin, r = 0.99***) were very highly correlated with total isoflavone concentrations. As a result, they constituted most of the total isoflavones in the soybean seeds at R5, R6, R7, and full maturity stages. Copyright © 2007 Society of Chemical Industry     

Hydroxyapatite formation by solvothermal treatment of α-tricalcium phosphate with water-ethanol solution

We investigated hydroxyapatite (HAp) formation from alpha-tricalcium phosphate (α-TCP) under solvothermal conditions using water-ethanol solution. The rate of HAp formation decreased with increasing ethanol fraction in the solution. Needle-like HAp was formed with a small amount of beta-tricalcium phosphate after solvothermal treatment for 3 h in solutions with water/ethanol volume ratios of 5/15 and 10/10. In the solution with water/ethanol volume ratio of 5/15, needle-like HAp formed with a small amount of dicalcium phosphate anhydrous (DCPA) at 12 h, and the amount of DCPA increased with increasing treatment period. The aspect ratio of the HAp crystals that formed increased with increasing ethanol fraction in the solution. The fraction of ethanol in the solution during the solvothermal processing affects not only the rate of transformation of α-TCP into HAp, but also the morphology of the HAp that is formed.     

Rh–Sr/Al2O3 Catalyst for N2O Decomposition in the Presence of O2

The improving effect of Sr in the catalytic activity of Rh for N₂O decomposition has been studied under 1,000 ppm N₂O/He and 1,000 ppm N₂O/5% O₂/He (GHSV = 10,000 h^?1). Different techniques have been used for catalysts characterization: TEM, SEM-EDX, XRD, N₂ adsorption at ?196 °C and in situ XPS. Sr favours the Rh dispersion and reduction under reaction conditions, and allows the low temperature removal of N₂O in the presence of O₂ (100% decomposition at 350 °C).