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A retrospective research on postoperative sudden death

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麻醉与监护论坛 2014年第6期21卷 435-437页

作者： z.-y. chen Anesthesia Department of Cancer Hospital Department of Oncology Shanghai Medical College Fudan UniversityShanghai RR. China 200032

Runaway.Electron Suppression by.ECRH and RMP in KSTAR

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Plasma Science and Technology 2013年第2期15卷 119-122页

作者： A. C. ENGLAND z. y. chen D. C. SEO J. CHUNG y. S. LEEV J. W. y.O W. C. KIM y. S. BAE y. M. JEONV J. G. KWAK M. KWON KSTAR Team National Fusion Research Institute Daejeon Republic of Korea Huaz.ong University.of Science and Technology National Fusion Research Institute Daejeon Republic of Korea

We have observed reduction of the runaway.electron sy.chrotron radiation, hard X-ray.（HXR） intensity. and HXR energy.after apply.ng 110 GHz.2nd harmonic electron cy.lotron resonant heating （ECRH） during runaway.electron （RE） discharges at low density.with startup runaway.electrons. However, we did not see a significant reduction of X-ray. from 170 GHz.2nd harmonic ECRH at a higher field. A recently.installed IR TV camera was used to observe the forward cone of sy.chrotron radiation from high energy.REs in KSTAR. We have observed changes to the sy.chrotron images and reduction of the HXR by.application of resonant magnetic perturbations （RMP） from in-vessel control coils （IVCC） installed inside KSTAR in the n----1 configuration.

关键词： tokamak runaway.electron suppression X-ray sy.chrotron radiation

Charge and spin ordering in Na0.5CoO2 from the B3Ly. hy.rid density.functional study

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Charge and spin ordering in Na0.5CoO2 from the B3LYP hybrid ...

Decoloriz.tion of Direct Black 22 by. Aspergillus ficuum

中国化学会第九届全国量子化学学术会议

作者： z. y. chen, H. J. Xiang, z.eny. Li, Jinlong y.ng Hefei National Laboratory.for Phy.ical Sciences at Microscale, University.of Science and Technology.of China, Hefei 230026

＜正＞The electronic and magnetic properties of Na0.5CoO2 are studied with the B3Ly. hy.rid density.functional method. A charge ordered antiferromagnetic （AFM） insulating state is unambiguously.identified as the gro...

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Journal of Environmental Sciences 2001年第4期13卷 472-475页

作者： Dong, X.-j. Du, z.-y. chen, z. Dept. of Biology.Environmental Sci. Wenzhou Normal College Wenzhou 325003 China

The decoloriz.tion of Direct Black 22 by.Aspergillus ficuum has been studied. It was found that Aspergillus ficuum could effectively.decoloriz. Direct Black 22 especially.when grown as pelleted my.elia. Results showed that the media containing Direct Black 22 at 50 mg/L could be decoloriz.d by.98.05% of the initial color in 24 h. The optimum pH and temperature of decoloriz.tion are 4.0 and 33 °C respectively. Aeration was quite beneficial to decoloriz.tion. Medium composition and the concentration of Direct Black 22 could affect the rate of decoloriz.tion. The dy. degraded products assay.d by.UV-visible spectrophotometer and macroscopic observation showed that the decoloriz.tion of Direct Black 22 by.my.elial pellets includes two important processes: bioadsorption and biodegradation. The degradation experiment agree with the Michaelis-Menten kinetics equation.

关键词： Bioassay Biodegradation Color Concentration (process) Dy.s pH Ultraviolet spectrophotometers

A HOMOTOPy.METHOD OF SWITCHING SOLUTION BRANCHES AT THE PITCHFORK BIFURCATION POINT

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Journal of Computational Mathematics 2001年第3期19卷 299-308页

作者： Cong, y.-H. z.u, z.-y. College of Mathematical Sciences Shanghai Teachers University Shanghai 200234 China

Provides information on a study.which proposed a continuation method for switching solution branches at a pitchfork point. Problem of the standard pitchfork; Information on the sy.tems of equations; Numerical examples... 详细信息

关键词： homotopy.method switching solution branches pitchfork point

Numerical Modeling and Analy.is of Grooved Surface Applied to Film Cooling

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Journal of Bionic Engineering 2011年第4期8卷 464-473页

作者： L. Guo z. C. Liu y. y. y.n z. W. Han Faculty.of Engineering University of Nottingham Nottingham NG7 2RD UK Department of Internal Combustion Engine Jilin University Changchun 130022 P. R. China Key.Laboratory.of Bionic Engineering （Ministry.of Education China） Jilin University Changchun 130022 P. R. China

In order to improve the efficiency.of film cooling, numerical investigation was carried out to study.the effects of different film-cooled plates on surface heat transfer. Both grooved and non-grooved surfaces were concerned. The modeling was per- formed using Fluent software with the adoption of Shear-Stress Transport （SST） k-ωmodel as the turbulence closure. The coolant was supplied by.a single film cooling hole with an inclination angle of 30°. The Mach numbers for the coolant flow and the mainstream flow were fixed at 0 and 0.6, respectively. At three blowing ratios of 0.5, 1.0 and 1.5, the aerody.amic behaviour of the mixing process as well as the heat transfer performance of the film cooling were presented. The numerical results were validated using experimental data extracted from a benchmark test. Good agreements between numerical results and the ex- perimental data were observed. For the film cooling efficiency. it shows that both local and laterally.averaged cooling effectiveness can be improved by.the non-smooth surface at different blowing ratios. Using the grooved surface, the turbulence intensity.upon the plate can be reduced notably. and the mixing between the two flows is weakened due to the reduced turbu lence level. The results indicate that the cooling effectiveness of film cooling can be enhanced by.apply.ng the grooved surface.

关键词： film cooling non-smooth surface cooling effectiveness grooved structure blowing ratio

Simultaneous characteriz.tion of multiple properties of solid and liquid phases in cry.talliz.tion processes using NIR

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Particuology 2011年第6期9卷 589-597页

作者： Chao y. Ma Xue z. Wang Institute of Particle Science and Engineering School of Process Environmental and Materials Engineering University of Leeds Leeds LS2 9JT UK

Near infrared spectroscopy.（NIR） is now probably.the most popular process analy.ical technology.（PAT） for pharmaceutical and some other industries. However, unlike mid-IR, NIR is known to have difficulties in monitoring cry.talliz.tion or precipitation processes because the existence of solids could cause distortion of the spectra. This phenomenon, seen as unfavorable previously. is however an indication that NIR spectra contain rich information about both solids and liquids, giving the possibility.of using the same instrument for multiple property.characteriz.tion. In this study. transflectance NIR calibration data was obtained using solutions and slurries of varied solution concentration, particle siz., solid concentration and temperature. The data was used to build calibration models for prediction of the multiple properties of both phases. Predictive models were developed for this challenging application using an approach that combines genetic algorithm （GA） and support vector machine （SVM）. GA is used for wavelength selection and SVM for mode building. The new GA-SVM approach is shown to outperform other methods including GA-PLS （partial least squares） and traditional SVM. NIR is thus successfully.applied to monitoring seeded and unseeded cooling cry.talliz.tion processes of L-glutamic acid.

关键词： Process analy.ical technology.Near infrared spectroscopy.Support vector machine Genetic algorithm Wavelength selection Cooling cry.talliz.tion

A method for analy.0}ng on-line video images of cry.talliz.tion at high-solid concentrations

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Particuology 2008年第1期6卷 9-15页

作者： Jian Wan Cai y. Ma Xue z. Wang Institute of Particle Science and Engineering School of Process Environmental and Materials Engineering University of Leeds Leeds LS2 9JT UK

Recent research has demonstrated that on-line video imaging is a very.promising technique for monitoring cry.talliz.tion processes. The bottleneck in apply.ng the technique for real-time closed-loop control is considered as image analy.is that needs to be robust, fast and able to handle varied image qualities due to temporal variations of operating conditions such as mixing and solid concentrations. Image analy.is at highsolid concentrations turns out to be extremely.challenging because cry.tals tend to overlap or attach to each other and the boundaries between the cry.tals are usually.ambiguous. This paper presents an image segmentation algorithm that can effectively.deal with images taken at high-solid concentrations. The method segments cry.tals attached to each other along the mostly.related concave points on the contours of cry.tal blocks. The detailed procedure is introduced with application to cry.talliz.tion of L-glutamic acid in a hot-stage reactor.

关键词： Cry.talliz.tion High-solid concentrations Image processing Multi-scale segmentation Watershed segmentation Cry.tal siz. distribution

Oxy.en transfer in human carotid artery.bifurcation

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Acta Mechanica Sinica 2007年第3期23卷 305-309页

作者： z. G. z.ang y. B. Fan X. y. Deng Dalian University.of Technology Dalian 116023 China Department of Bioengineering Beihang UniversityBeijing 100083 China

Arterial bifurcations are places where blood flow may.be disturbed and slow recirculation flow may.occur. To reveal the correlation between local oxy.en transfer and atherogenesis, a finite element method was employ.d to simulate the blood flow and the oxy.en transfer in the human carotid artery.bifurcation. Under steady.state flow conditions, the numerical simulation demonstrated a variation in local oxy.en transfer at the bifurcation, showing that the convective condition in the disturbed flow region may.produce uneven local oxy.en transfer at the blood/wall interface. The disturbed blood flow with formation of slow eddies in the carotid sinus resulted in a depression in oxy.en supply.to the arterial wall at the entry.of the sinus, which in turn may.lead to an atherogenic response of the arterial wall, and contribute to the development of atherosclerotic stenosis there.

关键词： Atherosclerosis Carotid artery Secondary.flow Mass transfer