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Prediction of rat liver transplantation outcomes using energy metabolites measured by microdialysis

Hepatobiliary & pancreatic Diseases International 2018年第5期17卷 392-401页

作者： Qi pan Ying Cheng Zi-Gong shao An-Yin Wang Yong-Feng Liu Department of Transplantation and Hepatobiliary Surgery First Affiliated Hospital of China Medical University

Background: Warm ischemia jeopardizes graft quality and recipient survival in donation after cardiac death(DCD) transplantation. Currently, there is no system to objectively evaluate the liver quality from DCD. The present study tried to use energy metabolites to evaluate the donor liver quality. Methods: We divided 195 Sprague-Dawley rats into five groups: the control( n = 39), warm ischemic time(WIT) 15 min( n = 39), WIT 30 min( n = 39), WIT 45 min( n = 39), and WIT 60 min( n = 39) groups. Three rats from each group were randomly selected for pretransplant histologic evaluation of warm ischemiarelated damage. The remaining 36 rats were randomly divided into donors and recipients of 18 liver transplantations, and were subjected to postoperative liver function and survival analyses. Between cardiac arrest and cold storage, liver energy metabolites including glucose, lactate, pyruvate, and glycerol were measured by microdialysis. The lactate to pyruvate ratio(LPR) was calculated. Results: The changes in preoperative pathology with warm ischemia were inconspicuous, but the trends in postoperative pathology and aminotransferase levels were consistent with preoperative energy metabolite measurements. The 30-day survival rates of the control and WIT 15, 30, 45, and 60 min groups were 100%, 81.82%, 76.92%, 58.33%, and 25.00%, respectively. The areas under the receiver operating characteristic curves of glucose, lactate, glycerol, and LPR were 0.87, 0.88, 0.88, and 0.92, respectively. Conclusion: Glucose, lactate, glycerol, and LPR are predictors of graft quality and survival outcomes in DCD transplantation.

关键词： Energy metabolites Graft evaluation Warm ischemia Microdialysis Donation after cardiac death

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Influence of Negative Pressure Gradient on Pressure Distribution and Gas-Solid Flow Pattern of Solid Feed Systems

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China Petroleum Processing & Petrochemical Technology 2018年第2期20卷 104-110页

作者： Zhang Meiju pan Feng shao Guoqiang Ge Yu Zhang Lei State Key Laboratory of Multi-phase Complex Systems Institute of Process EngineeringChinese Academy of Sciences

A series of experiments on a solid feed system was performed to investigate the effect of negative pressure gradient on the gas-solid flow pattern and hydrodynamic *** on the non-fluidized gas-solid two phase flow and particulate mechanics in the standpipe,a method for predicting the pressure of the air passing through the recycle chamber and the pressure drop through the loop seal slit in these systems is also *** predicted pressure profile along the negative pressure gradient from the proposed model exhibits a good agreement with the experimental *** experimental data show that the gas flow in the standpipe is always upward in the negative pressure gradients,while the direction ofthe superficial gas velocity through the recycle chamber of the loop seal does not affect the pressure drop in *** increases with an increasing negative pressure gradient.

关键词： fuidized bed solid feedsystem negative pressure gradient gas-solid fow pattern

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Decoration of Terpyridine with Electron-Rich Unit TH DTAP: an Efficient Way to Explore Fluorescence Sensors for Recognizing Metal Ions

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Chinese Journal of Chemistry 2019年第9期37卷 909-914页

作者： Taoshan Xu Dongxu Li Chaoxian Yan Yuewei Wu Cheng-shan Yuan Xiangfeng shao State Key Laboratory of Applied Organic Chemistry Lanzhou UniversityLanzhouGansu 730000Chino

The electron-donating unit 2,3,4,6-tetrahydro-1,6-dithia-3a-azaphenalene (THDTAP) was introduced onto terpyridine (TPy) to give a donor-acceptor (D-A) type TPy-ligand (compound 2).Upon selective oxidation of two sulfur atoms on the THDTAP moiety of 2,the ligands 3-6 were *** electronic structures of 2-6 were evaluated by theoretical,electrochemical,and spectroscopic *** oxidation on the sulfur atoms brings significant influence on the electron-donating ability of THDTAP moiety,subsequently,leads to fine modulations on intramolecular charge-transfer (ICT) of 2-6 and the electronically excited states of the complexes of 2-6 with metal *** on the optical response of 2-6 toward metal ions,the step-by-step recognition of Zn2+,Cd2+,and Ag+ ions is set up by employing 2 and 3 as combined fluorescence sensors.

关键词： intramolecular charge-transfer (ICT) introduced onto terpyridine (TPy) 2,3,4,6-tetrahydro-1,6-dithia-3a-azaphenalene (THDTAP)

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Degradation of chlorpyrifos alone and in combination with chlorothalonil and their effects on soil microbial populations

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Journal of Environmental Sciences 2008年第4期20卷 464-469页

作者： CHU Xiaoqiang FANG Hua pan Xuedong WANG Xiao shan Min FENG Bo YU Yunlong Department of Plant Protection College of Agriculture and Biotechnology Zhejiang University Hangzhou 310029 China

In practice, pesticides are usually applied simultaneously or one after another for crop protection, and this type of pesticide application often leads to a combined contamination of pesticide residues in the soil environment. A laboratory study was conducted to investigate the influence of chlorothalonil on chlorpyrifos degradation and its effects on soil bacterial, fungal, and actinomycete populations. Under the experimental conditions here, the half-lives of chlorpyrifos alone, and in combination with chlorothalonil, at the recommended and double dosages, were measured to be 3.24, 2.77, and 2.63 d, respectively. Chlorpyrifos degradation was not significantly altered by its combination with chlorothalonil. However, the inhibitory effect of chlorpyrifos on soil microorganisms was increased by its combination with chlorothalonil, and the increase was related to the levels of chlorothalonil added. Compared to those in the controls, the populations of bacteria, fungi, and actinomycetes were significantly reduced by 44.1%, 61.1%, and 72.8%, respectively, on the first day after treatment （DAT） by chlorpyrifos alone. With the addition of chlorothalonil, the inhibition was increased to 55.2%, 79.3%, and 85,8% at the recommended dosage, and 86.0%, 94.1%, and 90.8% at the double dosage, at one DAT, respectively. The results suggested that combined effects should be taken into account to assess the actual impacts of pesticide applications.

关键词： pesticide soil microorganism chlorpyrifos chlorothalonil combination

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Synthesis and characterization of cuprous selenide nanocrystals at room temperature

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Chinese Chemical Letters 2007年第5期18卷 617-620页

作者： Tai shan Li shao Pu Liu Zhao Xia Lu Zhong Fang Liu School of Chemistry and Chemical Engineering Southwest University Chongqing 400715 China School of Chemical Engineering and Biological Technology Hebei Polytechnic University Tangshan 063000 China

A simple method has been developed to prepare cuprous selenide nanocrystals by the reaction of copper nitrate trihydrate with selenium and sodium mercaptoacetate in aqueous ammonia system. CuESe nanocrystals were characterized by transmission electron microscopy （TEM）, high resolution transmission electron microscopy （HRTEM）, X-ray diffraction （XRD）, electron diffraction （ED）, fluorescence spectrum and ultraviolet-visible absorption spectrum. Cu2Se nanocrystals showed berzelianite structure with 20-40 nm in length and 10-20 nm in width. A possible mechanism is also discussed.

关键词： Cuprous selenide Nanocrystals Synthesis Characterization

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Waste cotton fabric derived porous carbon containing Fe_(3)O_(4)/NiS nanoparticles for electrocatalytic oxygen evolution

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Journal of Materials Science & Technology 2020年第24期59卷 92-99页

作者： shan Jiang Hao shao Genyang Cao Han Li Weilin Xu Jingliang Li Jian Fang Xungai Wang Deakin University Institute for Frontier MaterialsGeelongVIC3216Australia State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan430200China College for Textile and Clothing Engineering Soochow UniversitySuzhouJiangsu215123China

Developing low-cost,active and durable electrocatalysts for oxygen evolution reaction(OER)is an urgent task for the applications such as water splitting and rechargeable metal-air ***,this work reports the fabrication of a metal and hetero atom co-doped fibrous carbon structure derived from cotton textile wastes and its use as an efficient OER *** free-standing fibrous carbon structure,fabricated with a simple two-step carbonization process,has a high specific surface area of 1796 m^2/g and a uniform distribution of Fe_(3)O_(4)/NiS nanoparticles(Fe_(3)O_(4)/NiS@CC).The composite exhibits excellent OER performance with an onset potential of 1.44 V and a low overpotential of 310 mV at the current density of 10 mA/cm^2in a 1.0 M KOH solution,which even surpass commercial Ru O_(2)***,this ternary catalyst shows remarkable long-term stability without current density loss after continuous operation for 26 *** can be believed that the outstanding OER performance is attributed to the synergistic effect between the iron oxides and nickel sulphides,as well as the micro-meso porous carbon *** study demonstrates a new strategy to use conventional textile materials to prepare highly efficient electrocatalysts;it also provides a simple approach to turn textile waste into valuable products.

关键词： Waste cotton Porous carbon OER electrocatalyst Iron oxides Nickel sulphides

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Isolation and Purification of Anthocyanins from Blood Oranges by Column Chromatography

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Agricultural Sciences in China 2010年第2期9卷 207-215页

作者： CAO shao-qian pan Si-yi YAO Xiao-lin FU Hong-fei College of Biological and Environmental Sciences Zhejiang Wanli University Ningbo 315100 P.R.China College of Food Science and Technology Huazhong Agricultural University Wuhan 430070 P.R.China

In this study, isolation and purification of anthocyanins from blood oranges by column chromatography were investigated, and then the anthocyanins of blood orange were identified. The behaviors of static adsorption and desorption, dynamic adsorption and desorption of 12 kinds of resins were compared. The results indicated that NKA-9 macroporous resin was optimum for isolation of blood orange anthocyanins, and the optimal elution reagent was 50% ethanol with citric acid （pH 2.5）. Toyopearl TSK HW-40S column was employed to separate and purify the anthocyanin extracts from blood orange. The best separation of Toyopearl TSK HW-40S column was obtained using a mobile phase of 35% methanol with 2% formic acid at a flow-rate of 0.6 mL min-~. Three kinds of anthocyanins were purified from blood orange. Then, the anthocyanins of blood orange were identified by HPLC-ESUMS analysis. The results showed that cyanidin-3-glucoside （35.2%） and cyaniding-3-（6＂-malonyl） glucoside （42.9%） were the major anthocyanins of blood orange. Furthermore, cyanidin-3-（3＂-malonyl） glucoside, cyanidin 3-（6＂-dioxalyl） glucoside and cyanidin-3-glucoside adduct：4-vinylcatechol were identified in blood orange. The combination of NKA-9 macroporous resin and Toyopearl TSK HW-40S column chromatography for isolation and purification of blood orange anthocyanins was an effective method, and HPLC-ESI/MS analysis was a convenient, rapid and effective method for identification of anthocyanins from blood orange.

关键词： blood orange pigment anthocyanins purification identification

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Edge-preserving image decomposition via joint weighted least squares

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Computational Visual Media 2015年第1期1卷 37-47页

作者： pan shao Shouhong Ding Lizhuang Ma Yunsheng Wu Yongjian Wu Department of Computer Science and Engineering Shanghai Jiao Tong University Tencent Inc.

Recent years have witnessed the emergence of image decomposition techniques which effectively separate an image into a piecewise smooth base layer and several residual detail layers. However, the intricacy of detail patterns in some cases may result in side-effects including remnant textures, wronglysmoothed edges, and distorted appearance. We introduce a new way to construct an edge-preserving image decomposition with properties of detail smoothing, edge retention, and shape fitting. Our method has three main steps: suppressing highcontrast details via a windowed variation similarity measure, detecting salient edges to produce an edgeguided image, and fitting the original shape using a weighted least squares framework. Experimental results indicate that the proposed approach can appropriately smooth non-edge regions even when textures and structures are similar in scale. The effectiveness of our approach is demonstrated in the contexts of detail manipulation, HDR tone mapping,and image abstraction.

关键词： detail suppression edge extraction edge-preserving decomposition shape recovery

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Process design and microstructure-property evolution during shear spinning of Ti_(2)AlNb-based alloy

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Journal of Materials Science & Technology 2022年第6期101卷 1-17页

作者： Sibing Wang Wenchen Xu Bin shao Guoping Yang Yingying Zong Wanting Sun Zhongze Yang Debin shan School of Materials Science and Engineering&National Key Laboratory for Precision Hot Processing of Metals Harbin Institute of TechnologyHarbin 150001China Capital Aerospace Machinery Co.Ltd. Beijing 100076China

Rotationally symmetric workpieces of Ti_(2)AlNb-based alloys have great potential for high-temperature service condition in aviation industry,while the poor workability limits their application until *** this study,shear spinning and heat treatment were first conducted to investigate the corresponding microstructure evolution and mechanical properties of Ti_(2)AlNb conical *** microstructure of the 1^(st) and 2^(nd) pass spun workpieces(SP1 and SP2)mainly consisted of B2+retainedα*** two passes spinning,the B2 phase texture changed from//ND of as-received alloy to be//*** ultimate tensile stress(UTS)of SP1 and SP2 was increased to 1163 MPa and 932 MPa,respectively,compared with 782 MPa of as-received alloy at 650℃.Also,the yield stress anomaly(YSA)occurred in SP1 and SP2 because{110}and{112}cross slip systems of B2 phase were difficult to slip at or below room temperature(RT),but they became active at 650℃ and *** an essential step for increasing the spinnability of multi-pass spinning process of the Ti_(2)AlNb alloy,the H3heat treatment scheme,i.e.960℃/2 h+850℃/12 h,was carried out between two successive passes to increase the hot workability,by which the ductility of the heat treated as-spun workpieces with the microstructure of B2+primary O+acicular secondary O+high amount spheroidizedα2phases reached 72.1%at 900℃.After being subject to the H1 heat treatment scheme,i.e.960℃-2 h,the spun workpieces with the microstructure of B2+primary O+intergranular primaryα2phases achieved an optimized comprehensive mechanical properties both at room temperature and 650℃,which should be chosen as the post-spinning heat treatment process for the service requirement.

关键词： Ti_(2)AlNb-based alloy Shear spinning Conical workpiece Microstructural evolution Mechanical property

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Magnetization Profiles of Ferromagnetic Ising Films in a Transverse Field

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Chinese Physics Letters 2000年第2期17卷 132-133页

作者： WANG Xiao-Guang pan shao-Hua YANG Guo-Zhen Laboratory of Optical Physics Institute of PhysicsChinese Academy of SciencesBeijing 100080

Within the framework of the mean field theory, we study the magnetization profiles of ferromagnetic Ising films in a transverse field. By the transfer matrix method, we first derive a general nonlinear equation for phase transition temperatures and then calculate the magnetization profiles of the system. The method proposed here can be applied to ferromagnetic films with arbitrary surface layer number, bulk layer number, exchange interaction constants and transverse fields.

关键词： field ferromagnetic transverse

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