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42篇 您的检索式:作者名="ShengZhou"
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1Adaptive changes of gastro-entero-pancreatic system endocrine cells in the black-spotted pond frog Rana nigromaculata after fasting显示文摘Changes in distribution density,morphology and secretory content of endocrine cells in the gastro-entero-pancreatic system of black-spotted frogs Rana nigromaculata before and after fasting were investigated using immunohistochemistry and antisera to six gut hormones.Six types of endocrine cells were detected in the digestive tract of Rana nigromaculata,including 5-hydroxytryptamine(5-HT),gastrin(GAS),somatostatin(SOM),glucagon(GLU),pancreatic polypeptide(PP)and vasoactive intestinal polypeptide(VIP)cells.After fasting,the density of 5-HT cells in the esophagus,cardia and fundus,GAS cells in the fundus and pylorus,PP cells in the fundus decreased significantly(P<0.01),while SOM cells in the cardia,GLU cells in the rectum increased significantly(P<0.01).The cytoplasmic processes of 5-HT cells became shorter or not detectable.The secretory content of GAS cells reduced in the cardia.The positive immunostaining reaction in the perinuclear region of SOM cells in the cardia,fundus and pylorus became weaker,while the staining intensity in the periphery of these cells became stronger.VIP cells were not detectable in the whole digestive tract after fasting.Five types of endocrine cells were found in the pancreas of Rana nigromaculata,including 5-HT,GAS,SOM,GLU and PP cells.After fasting,the density of 5-HT cells decreased slightly(P>0.05),while SOM,GAS,GLU and PP cells increased significantly(P<0.01).Furthermore,the secretory content of GLU cells increased significantly.Considering their functionalities,our results indicate that the changes of GEP endocrine cells in Rana nigromaculata responded adaptively to starvation-induced stress.Hongzhen PAN Honghong CHEN Lianjiu ZHU Yang LI Changchun LI Shengzhou ZHANG 2009Current Zoology2009,55,4:4
2Selective Oxidation of CO in Excess H_2 over Ru/Al_2O_3 Catalysts Modified with Metal Oxide显示文摘与金属氧化物(K2OandLa2O3 ) 修改的 Ru/Al2O3 催化剂从与硝酸盐在 Al2O3 支持上装载混合的 RuCl3 · n H2O 经由早期的湿受精方法被准备。催化剂的活动从改革气体生产的充满氢的煤气的溪流为公司(CO-PROX ) 的优先的氧化在模拟条件下面被评估,并且催化剂的表演被 XRD 和 TPR 调查。结果证明修改催化剂 Ru-K2O/Al2O3 和 Ru-La2O3/Al2O3 的活动温度被降低约 30 ° C 与纯 Ru/Al2O3,和活动温度范围相比被拓宽。Ru-K2O/Al2O3 和 Ru-La2O3/Al2O3 上的公司的变换在 140 160 ° C 超过 99% ,合适在充满氢的气体和 Ru-La2O3/Al2O3 的选择移开公司比在活跃温度范围的 Ru-K2O/Al2O3 的高。细微 methanation 反应在 220 ° C 并且在上面被检测。Xirong Chen Hanbo Zou Shengzhou Chen Xinfa Dong Weiming Lin 2007Journal of Natural Gas Chemistry2007,16,4:4
3Effect of pretreatment methods on the performance of Cu-Zr-Ce-O catalyst for CO selective oxidation显示文摘用一起沉淀方法准备的 Cu-Zr-Ce-O 催化剂为公司选择氧化展出了更好催化的性能。有不同方法的 Cu-Zr-Ce-O 催化剂 pretreated 被 CO-TPR 和 XPS 技术学习。结果证明有氧的 Cu-Zr-Ce-O 催化剂 pretreated 展出了最好的催化表演并且有最宽的操作温度窗户,与从 160 ~ 200 ° C 的超过 99% 的公司变换。O 2 预告的处理在 Cu 活跃种类上引起了氧 storaged 的丰富并且支持了吸附的氧的变换进表面格子氧。它也改进了 Cu +/Cu2+ 的数量离子的对,然后为选择公司氧化在催化剂上便于 CuO 活跃种类的形成。Hanbo Zou Shengzhou Chen Weiming Lin 2008Journal of Natural Gas Chemistry2008,17,2:3
4Controllable Morphology Tailoring with Solvothermal Method Toward LiMnPO_(4)/C Cathode Materials for Improved Performance and Favorable Thermostability显示文摘An environmentally friendly method for the synthesis of LiMnPO_(4)/C anode material for lithium-ion batteries by solvothermal method is introduced.The modification of the morphology of this precursor is altered by changing the ratio of the conditioning solvent(water-ethylene glycol solution)and the order of material addition.Ethylene glycol(EG)exerts a considerable influence on synthesizing LiMnPO_(4)/C flake-like nanocrystal,which benefits the extraction/insertion reaction of lithium ions and improves the electrochemical activity and electrochemical performance of LiMnPO_(4)/C material.When the solvent composition is H_(2)O:EG=1:3,exhibiting exceptional charge/discharge performance and rate capability,the specific discharge capacities are 155.8,153.7,148.8,141.4,129.5,and 112.6 mAh g^(−1) at the 0.1,0.2,0.5,1,2,and 5 C rates,respectively.When the charge-discharge rate returns to 0.1 C,the LiMnPO_(4)/C material shows a reversible discharge specific capacity of 153.7 mAh g^(−1).Differential scanning calorimetry(DSC)tests verify that the thermodynamic stability of the prepared LiMnPO_(4)/C(LMP)and commercial LiFePO_(4)(LFP)materials is better than that of commercial nickel-cobalt-aluminum(NCA)ternary materials.These prepared LiMnPO_(4)/C composites have high electrochemical capacity and cycle stability.Wei Yang Xiulian Qiu Chengyun Wang Jinhao Ye Jihua Zhu Hanbo Zou Shengzhou Chen 2022Acta Metallurgica Sinica(English Letters)2022,35,5:2
5Carbon nanotubes-Nafion composites as Pt-Ru catalyst support for methanol electro-oxidation in acid media显示文摘Carbon nanotubes-Nafion (CNTs-Nafion) composites were prepared by impregnated CNTs with Nafion in ethanol solution and characterized by FT-IR. Pt-Ru catalysts supported on CNTs-Nafion composites were synthesized by microwave-assisted polyol process. The physical and electrochemical properties of the catalysts were characterized by X-ray diffraction (XRD), transmission electron microscope (TEM), CO stripping voltammetry, cyclic voltammetry (CV) and chronoamperometry (CA). The results showed that the Nafion incorporation in CNTs-Nafion composites did not significantly alter the oxygen-containing groups on the CNTs surface. The Pt-Ru catalyst supported on CNTs-Nafion composites with 2 wt% Nafion showed good dispersion and the best CO oxidation and methanol electro-oxidation activities.Shengzhou Chen Fei Ye Weiming Lin 2009Journal of Natural Gas Chemistry2009,18,2:2
6Directional assist (0 1 0) plane growth in LiMnPO_(4) prepared by solvothermal method with polyols to enhance electrochemical performance显示文摘Phosphate material LiMnPO4 is popular for its high energy density(697 W·h·kg^(-1))and safety.When LiMnPO_(4) crystal grows,the potential barrier along b and c axis is strong,which makes the crystal grow along b axis to form a one-dimensional chain structure.However,the main migration channel of lithium ions in olivine structure is plane(010).By shortening the growth in the direction of b axis and enhancing the diffusion along the directions of a and c,two-dimensional nanosheets that are more conducive to the migration of lithium ions are formed.The dosage of polyols is the key factor guiding the dispersion of the crystals to the(010)plane.X-ray diffraction(XRD),Scanning electron microscopy(SEM),transmission electron microscopy(TEM)and other means are used to characterize the samples.After experiments,we found that when the ratio of polyol/water was 2:1,the morphology of the synthesized sample was 20–30 nm thick nanosheets,which had the best electrochemical performance.At 0.1C,the discharge specific capacity reaches 148.9 mA·h·g^(-1),still reaches 144.3 mA·h·g^(-1) at the 50th cycle.and there is still 112.5 mA·h·g^(-1) under high rate(5C).This is thanks to the good dispersion of the material in the direction of the crystal plane(010).This can solve the problem of low conductivity and ionic mobility of phosphate materials.Qian Xie Jihua Zhu Chengyun Wang Kaibin Fang Wei Yang Quanbing Liu Yali Wang Shengzhou Chen 2021Chinese Journal of Chemical Engineering2021,34,8:1
7Characteristic analysis of otsu threshold and its applications显示文摘Xu Xiangyang Xu Shengzhou Jin Lianghai 2011Pattern Recognition Letters2011,32,7:1
8Characteris- tic analysis of Otsu threshold and its applications 显示文摘Xu Xiangyang Xu Shengzhou Jin Lianghai 2011Pattern Recognition2011,32,7:1
9Characteristic analysis of Otsu threshold and its applications显示文摘Xiangyang Xu Shengzhou Xu Lianghai Jin Enmin Song 2011Pattern Recognition Letters2011,,7:1
10EXPRESSION OF p16 AND p53 IN GASTRIC CARCINOMA显示文摘Objective:To investigate the clinical significance of p53 and p16 expression in gastric carcinoma with special reference to the prognosis.Methods:One hundred and fifty-two patients with gastric carcinoma undergoing operation in our hospital between 1991 and 1998 were evaluated for expression of p53 and p16 in formalin-fixed and paraffin-embedded tumor tissue utilizing Avidin-Biotin immunohistochemistry techniques. Statistical correlations with stage, histological type, differentiation degree, location, size, and overall survival were done. The Cox proportional hazard model was also performed to evaluate which factors had an independent prognostic value.Results:In 152 cases of resected gastric cancer, 110 (72.4%) were p16 positive and 49 (32.2%) showed p53 overexpression. Differences were observed in the frequency of p16 positivity with respect to age, gender and tumor size. The frequency of p53 positivity cells in well-differentiated tumors was significantly higher than that in poorly differentiated tumors (41.9% vs. 25.6%; P = 0.034). In a multivariate analysis, tumor TNM stage, perioperation chemotherapy and the expression of p16 were independent prognostic factors in gastric cancer.Conclusions:The results of the current study suggest that expression of p16 may be a useful prognostic factor for patients with gastric carcinoma, but the expression of p53 as detected by immunohistochemistry were of no value in predicting the prognosis of patients with gastric carcinoma independently.Ma Yu, Gao Liping 1, Song Yifeng, Jing Jiong, Wang ChunjiangFirst Department of Surgery,Shengzhou People’s Hospital, Shengzhou 312400 2003中国现代医学杂志2003,13,1:1
11Characteris- tic analysis of otsu threshold and its applications 显示文摘Xu Xiangyang Xu Shengzhou Jin Lianghai 2011Pattern Recognition Letters2011,32,7:1
12Synthesis of poly(ether ether ketone)s with high content of sodium sulfonate groups as gas dehumidification membrane materials显示文摘Liu Shengzhou Wang Feng Chen Tianlu 2001Macromol Rapid Commun2001,22,8:1
13Effect of opera-ting conditions on the performance of a direct methanolfuel cell with PtRuMo/CNTs as anode catalyst显示文摘Chen Shengzhou Ye Fei Lin Weiming 2010In-ternational Journal of Hydrogen Energy2010,35,15:1
14Synthesis of Metal Oxides@C(Metal=Ni,Fe) Based Prussian Blue Analogs as a High-performance Anode Material for Lithium-ion Battery显示文摘Ni3[Fe(CN)6]2 nano-cubic precursors were prepared by chemical coprecipitation at room temperature with nickel acetate and potas sium ferricyanide as raw materials.The corresponding NiFe2O4-NiO@C composites with excellent crystallization were prepared by two-stage oxidation at low temperature.The microstructure and electrochemical behavior of the materials showed that the Prussian blue analog was transformed into metal oxide while the carbon coating was maintained in the twostage oxidation at low temperature.The existence of the carbon coating reduces the charge transfer impedance to 31.5 Ω.At the current density of 500 mA/g,the reversible capacity of 632.7 mAh/g is maintained after 500 cycles.At the same time,carbon cladding can also enhance the role of pseudocapacitance in the material.At the scanning rate of 0.1 mV/s,the pseudocapacitance account for 54.4% of the total discharge capacity,which is significantly higher than that of uncoated materials.Wei Yang Xiaoxian Pang Zhao Xue Jinhao Ye Haosen Fan Ting Shu Wenzhi Zheng Shengzhou Chen 2021Acta Metallurgica Sinica(English Letters)2021,34,3:1
15Characteristic analysis of Otsu threshold and its applications 显示文摘Xu Xiangyang Xu Shengzhou Jin Lianghai 2011PatternRe~ognition Letters2011,32,7:1
16Synthesis of Hollow Three-Dimensional Channels LiNi_(0.5)Mn_(1.5)O_4 Microsphere by PEO Soft Template Assisted with Solvothermal Method显示文摘A appropriate size with three-dimension(3 D) channels for lithium diffusion plays an important role in constructing highperforming LiNi_(0.5)Mn_(1.5)O_4(LNMO) cathode materials, as it can not only reduce the transport path of lithium ions and electrons, but also reduce the side effects and withstand the structural strain in the process of repetitive Li~+ intercalation/deintercalation. In this work, an e fficient method for designing the hollow LNMO microsphere with 3 D channels structure by using polyethylene oxide(PEO) as soft template agent assisted solvothermal method is proposed. Experimental results indicate that PEO can make the reagents mingle evenly and nucleate slowly in the solvothermal process, thus obtaining a homogeneous distribution of carbonate precursors. In the final LNMO products, the hollow 3 D channels structure obtained by the decomposition of PEO and carbonate precursor in the calcination can provide abundant electroactive zones and electron/ion transport paths during the charge/discharge process, which benefits to improve the cycling performance and rate capability. The LNMO prepared by adding 1 g PEO possesses the most outstanding electrochemical performance, which presented an excellent discharge capacity of 143.1 mAh g~(-1) at 0.1 C and with a capacity retention of 92.2% after 100 cycles at 1 C. The superior performance attributed to the 3 D channels structure of hollow microspheres, which provide uninterrupted conductive systems and therefore achieve the stable transfer for electron/ion.Jinfeng Zeng Zhiting Liu Hanbo Zou Wei Yang Haosen Fan Haijun Yu Shengzhou Chen 2021Acta Metallurgica Sinica(English Letters)2021,34,8:1
17Characteristic analysis of Otsu threshold and its applications 显示文摘XU Xiangyang XU Shengzhou JIN Lianghai 2011Pattern Recognition Letters2011,32,7:1
18Characteristic analysis of Otsu threshold and its applications 显示文摘Xu Xiangyang Xu Shengzhou Jin Lianghai 2011Pattern Recognition Letters2011,32,7:1
19Char- acteristic analysis of otsu threshold and its applications 显示文摘XU Xiangyang XU Shengzhou JIN Lianghai 2011Pattern Recognition Letters2011,32,7:1
20Abcg2 Expression Marks Tissue‐Specific Stem Cells in Multiple Organs in a Mouse Progeny Tracking Model显示文摘SoghraFatima ShengZhou Brian P.Sorrentino 2012STEM CELLS2012,,:1
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