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Genetic variants in the death receptor 4 gene contribute to susceptibility to bladder cancer

南京医科大学学报（自然科学版） 2009年第4期29卷 558-558页

作者： Wang, M. L. Wang, M. M. Cheng, G. zhang, z. z. Fu, G. B. zhang, z. D. Nanjing Med Univ Dept Mol & Genet Toxicol Sch Publ Hlth Ctr Canc Nanjing 210029 Peoples R China. Nanjing Med Univ Dept Epidemiol & Biostat Ctr Canc Nanjing 210029 Peoples R China. Nanjing Med Univ Affiliated Hosp 1 Dept Urol Nanjing 210029 Peoples R China. Nanjing Med Univ Huai An Affiliated Hosp 1 Dept Urol Nanjing 210029 Peoples R China. 不详

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FAS promoter polymorphisms and cancer risk： a meta-analysis based on 34 casecontrol studies

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南京医科大学学报（自然科学版） 2009年第4期29卷 444-444页

作者： zhang, z. z. Xue, H. C. Gong, W. D. Wang, M. L. Yuan, L. Han, S. P. zhang, z. D. Nanjing Med Univ Sch Publ Hlth Dept Mol &Genet Toxicol Ctr Canc Nanjing 210029 Peoples R China. Nanjing Med Univ Key Lab Reprod Med Nanjing 210029 Peoples R China. Yangz.ong Peoples Hosp Dept Thorac Surg Inst Canc Res Yangzhong 212200 Peoples R China. Yixing Peoples Hosp Dept Surg Yixing 214200 Peoples R Chino. Nanjing Med Univ Affiliated Hosp 1 Dept Obstet & Gynecol Nanjing 210029 Peoples R China.

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Upgrading of derived pyrolysis vapors for the production of biofuels from corncobs

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Frontiers of Chemical Science and Engineering 2018年第1期12卷 50-58页

作者： Liaoyuan Mao Yanxin Li z. Conrad zhang State Key Laboratory of Catalysis Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China

A bubbling fluidiz.d bed pyrolyz.r was integrated with an in-situ honeycomb as a catalytic upgrading z.ne for the conversion of biomass to liquid fuels. In the upgrading z.ne, z.olite coated ceramic honeycomb （z.CH） catalysts consisting of z.M-5 （Si/ Al = 25） were stacked and N2 or recycled non-condensable gas was used as a carrier gas. Ground corncob particles were fast pyrolyz.d in the bubbling bed using fine sand particles as a heat carrier and the resulting pyrolysis vapors were passed on-line over the catalytic upgrading z.ne. The influence of carrier gas, temperature, and weight hourly space velocity （WHSV） of catalyst on the oil product properties, distribution and mass balance were studied. Using z.CH effectively increased the hydrocarbon yield and the heating value of the dry oil, especially in the presence of the recycled noncondensable gas. Even a low usage of z.olite catalyst at WSHV of 180 h^-1 was effective in upgrading the pyrolysis oil and other light olefins. The highest hydrocarbon （≥C2） and liquid aromatics yields reached to 14.23 and 4.17 wt-%, respectively. The undesirable products including light oxygenates, furans dramatically decreased in the presence of the z.CH catalyst.

关键词： corncob monolith upgrading pyrolysis

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Wavelet-Based Mixed-Resolution Coding Approach Incorporating with SPT for the Stereo Image

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Journal of Systems Engineering and Electronics 2001年第3期12卷 39-44页

作者： Xu, C. zhang, z. An, P. Communication School Shanghai University Shanghai 200072 China

With the advances of display technology, three-dimensional(3-D) imaging systems are becoming increasingly popular. One way of stimulating 3-D perception is to use stereo pairs, a pair of images of the same scene acquired from different perspectives. Since there is an inherent redundancy between the images of a stereo pairs, data compression algorithms should be employed to represent stereo pairs efficiently. The proposed techniques generally use block-based disparity compensation. In order to get the higher compression ratio, this paper employs the wavelet-based mixed-resolution coding technique to incorporate with SPT-based disparity-compensation to compress the stereo image data. The mixed-resolution coding is a perceptually justified technique that is achieved by presenting one eye with a low-resolution image and the other with a high-resolution image. Psychophysical experiments show that the stereo image pairs with one high-resolution image and one low-resolution image provide almost the same stereo depth to that of a stereo image with two high-resolution images. By combining the mixed-resolution coding and SPT-based disparity-compensation techniques, one reference (left) high-resolution image can be compressed by a hierarchical wavelet transform followed by vector quantiz.tion and Huffman encoder. After two level wavelet decompositions, for the low-resolution right image and low-resolution left image, subspace projection technique using the fixed block siz. disparity compensation estimation is used. At the decoder, the low-resolution right subimage is estimated using the disparity from the low-resolution left subimage. A full-siz. reconstruction is obtained by upsampling a factor of 4 and reconstructing with the synthesis low pass filter. Finally, experimental results are presented, which show that our scheme achieves a PSNR gain (about 0.92dB) as compared to the current block-based disparity compensation coding techniques.

关键词： Data reduction Decoding Image coding Image compression Image reconstruction Imaging techniques Motion compensation Motion estimation Optical resolving power Projection systems Stereo vision Wavelet transforms

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THERMODYNAMICS STUDY ON THE DECOMPOSITION OF CHROMITE WITH KOH

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Acta Metallurgica Sinica(English Letters) 2007年第3期20卷 187-192页

作者： z. Sun S.L. z.eng Y. zhang Institute of Process Engineering Chinese Academy of Sciences Beijing 100080 China Graduate University of the Chinese Academy of Sciences Beijing 100049 China

Institute of Process Engineering, Chinese Academy of Sciences, China, has proposed a method for oxidative leaching of chromite with potassium hydroxide. Understanding the mechanism of chromite decomposition, especially in the potassium hydroxide fusion, is important for the optimiz.tion of the operating parameters of the oxidative leaching process. A traditional thermodynamic method is proposed and the thermal decomposition and the reaction decomposition during the oxidative leaching of chromite with KOH and oxygen is discussed, which suggests that chromite is mainly destroyed by reactions with KOH and oxygen. Meanwhile, equilibrium of the main reactions of the above process was calculated at different temperatures and oxygen partial pressures. The stable z.nes of productions, namely, K2CrO4 and Fe2O3, increase with the decrease of temperature, which indicates that higher temperature is not beneficial to thermodynamic reactions. In addition, a comparison of the general alkali methods is carried out, and it is concluded that the KOH leaching process is thermodynamically superior to the conventional chromate production process.

关键词： chromite KOH thermodynamics decomposition

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STUDY OF THE INFLUENCE OF pH ON THE ELECTROCRYSTALLIz.TION OF z.NC

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Acta Metallurgica Sinica(English Letters) 2005年第4期18卷 497-504页

作者： z. zhang W.H. Leng J. Q. zhang Department of Chemistry Zhejiang University Hangzhou 310027 China State Key Laboratory for Corrosion and Protection Institute of Metal Reseach The Chinese Academy of Sciences Shenyang 110016 China

The influence of pH value of the electrolyte solution on the z.nc electroplating process was studied by means of cyclic voltammetry and chronoamperometry approaches. The results shown that, under this experimental conditions and at high overpotentials, the nucleation of z.nc is instantaneous, and the nuclear densities N increase with the overpotentials. While at low potentials, no distinguished nucleation current can be observed. High pH promotes the deposition either by drifting the initial depositing potential positively, or by increasing the depositing current through the change of the total charge of the adsorption process Qads, i.e., thevstructure of electrochemical double layer.

关键词： z.nc electroplating nucleation growth mechanism

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INTERMETALLICS AS SUBSTITUTES FOR SUPERALLOYS

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Acta Metallurgica Sinica(English Letters) 2005年第4期18卷 463-467页

作者： J. zhang D. Feng z. Y. z.ong High Temperature Materials Division Central Iron and Steel Research Institute Beijing 100081China

The application advances of TiAl, Ti3Al and Ni3Al base aUoys were denumstrated by Central Iron and Steel Research Institute, China. The recent research progresses on improving the reliability of cast TiAI were mainly presented and discussed. The characteristics of the self-oriented lamellar microstructure in cast TiAI were investigated in both as cast and as HlPed states. Based on the mechanical anisotropy of the cast lamellar microstructure, the component specific microstrueture design was proposed for a better performance and reliability of cast TiAl.

关键词： intermetallic application TiAl alloy microstructure design

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SYNTHESIS AND IDENTIFICATION OF CONDUCTING POLYANILINE DOPED WITH RARE EARTH CHLORIDE

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Acta Metallurgica Sinica(English Letters) 2000年第3期13卷 872-876页

作者： Yang, C.M. zhang, Q.R. Fang, z. Central South Univ of Technology Changsha China

Polyaniline doped with rare earth chloride was synthesiz.d in organic solvent and identified by elemental analysis and infrared spectroscopy. The experimental results show that there exists both doping and complexation at the same time in the resulting product. When pH4. Moreover, polyaniline doped with rare earth chloride exhibits better thermal stability than that doped with hydrochloric acid.

关键词： Chlorine compounds Composition Conductive materials Electric conductivity Organic polymers Rare earth compounds Synthesis (chemical)

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CdSe Quantum Dot-Sensitiz.d Au/TiO2 Hybrid Mesoporous Films and Their Enhanced Photoelectrochemical Performance

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Nano Research 2011年第3期4卷 249-258页

作者： Liping Liu Gongming Wang Yat Li Yadong Li Jin z. z.ang Department of Chemistry Tsinghua University Beijing 100084 China Department of Chemistry and Biochemistry University of California Santa Cruz CA 95064 USA

Novel CdSe quantum dot （QD）-sensitiz.d Au/TiO2 hybrid mesoporous films have been designed, fabricated, and evaluated for photoelectrochemical （PEC） applications. The Au/TiO2 hybrid structures were made by assembly of Au and TiO2 nanoparticles （NPs）. A chemical bath deposition method was applied to deposit CdSe QDs on TiO2 NP films with and without Au NPs embedded. We observed significant enhancements in photocurrent for the film with Au NPs, in the entire spectral region we studied （350-600 nm）. Incident-photon-to-current efficiency （IPCE） data revealed an average enhancement of 50%, and the enhancement was more significant at short wavelength. This substantially improved PEC performance is tentatively attributed to the increased light absorption of CdSe QDs due to light scattering by Au NPs. Interestingly, without QD sensitiz.tion, the Au NPs quenched the photocurrent of TiO2 films, due to the dominance of electron trapping over light scattering by Au NPs. The results suggest that metal NPs are potentially useful for improving the photoresponse in PEC cells and possibly in other devices such as solar cells based on QD-sensitiz.d metal oxide nanostructured films. This work demonstrates that metal NPs can serve as light scattering centers, besides functioning as photo-sensitiz.rs and electron traps. The function of metal NPs in a particular nanocomposite film is strongly dependent on their structure and morphology.

关键词： TiO2 nanoparticles Au nanoparticles light scattering photoelectrochemistry

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Particle shape characterisation and classification using automated microscopy and shape descriptors in batch manufacture of particulate solids

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Particuology 2016年第1期14卷 61-68页

作者： Yang zhang Jing J. Liu Lei zhang Jorge Calderon De Anda Xue z. Wang School of Chemistry and Chemical Engineering South China University of Technology 381 Wushan Road Guangzhou 510641 China School of Bioscience and Bioengineering South China University of Technology Guangzhou Higher Education Mega Centre Panyu District Guangzhou510006 China Institute of Particle Science and Engineering School of Chemical and Process Engineering University of Leeds Leeds I52 9JT UK

It is known that siz. alone, which is often defined as the volume-equivalent diameter, is not sufficient to characteriz. many particulate products. The shape of crystalline products can be as important as siz. in many applications, Traditionally, particulate shape is often defined by several simple descriptors such as the maximum length and the aspect ratio. Although these descriptors are intuitive, they result in a loss of information about the original shape. This paper presents a method to use principal component analysis to derive simple latent shape descriptors from microscope images of particulate products made in batch processes, and the use of these descriptors to identify batch-to-batch variations. Data from batch runs of both a laboratory crystalliser and an industrial crystallisation reactor are analysed using the described approach. Qualitative and quantitative comparisons with the use of traditional shape descriptors that have nhwical meanings and Fourier shape descriptors are also made.

关键词： Batch-to-batch variation Classification Principal components analysis Shape descriptors

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