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Influence of different portal vein branches on hepatic encephalopathy during intrahepatic portal shunt via jugular vein

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World Journal of Gastroenterology 2022年第31期28卷 4467-4470页

作者： Xin Yao sheng he Meng Wei Jian-Ping Qin Department of Gastroenterology General Hospital of Western Theater CommandChengdu 610083Sichuan ProvinceChina

This letter is regarding the study titled‘Targeted puncture of left branch of intrahepatic portal vein in transjugular intrahepatic portosystemic shunt(TIPS)to reduce hepatic encephalopathy’.Prior to the approval of TIPS dedicated stents(Viatorr stents)in China in October 2015,Fluency covered stents were typically *** Fluency covered stents have a strong support force and axial elastic tension,a‘cap’may form if the stent is located too low at the end of the hepatic vein or too short at the end of the portal vein during surgery,leading to stent *** the blood shunted by the stent is from the main trunk of the portal vein,the correlation between the incidence of postoperative hepatic encephalopathy and the location of the puncture target(left or right portal vein branch)is worth ***,no studies in China or foreign countries have proven the occurrence of left and right blood stratification after the accumulation of splenic vein and mesenteric blood flow in the main trunk of the portal vein in patients with cirrhotic portal hypertension.

关键词： Viatorr stent Portosystemic shunt Transjugular intrahepatic Hypertension portal Left and right portal vein branches

A comparative study on ApEn,SampEn and their fuzzy counterparts in a multiscale framework for feature extraction

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2010年第4期11卷 270-279页

作者： Guo-liang XIONG Long ZHANG he-sheng LIU Hui-jun ZOU Wei-zhong GUO School of Mechatronie Engineering East China Jiaotong University Nanchang 330013 China School of Mechanical Engineering Shanghai Jiao Tong University Shanghai 200240 China Department of Physics Shangrao Normal University Shangrao 334001 China

Feature extraction from vibration signals has been investigated extensively over the past decades as a key issue in machine condition monitoring and fault *** existing methods,however,assume a linear model of the underlying *** this study,the feasibility of devoting nonlinear dynamic parameters to characterizing bearing vibrations is ***,fuzzy sample entropy (FSampEn) is formulated by defining a fuzzy membership function with clear physical ***,inspired by the multiscale sample entropy (multiscale SampEn) which is originally proposed to quantify the complexity of physiological time series,we placed approximate entropy (ApEn),fuzzy approximate entropy (FApEn) and the proposed FSampEn into the same multiscale *** led to the developments of multiscale ApEn,multiscale FApEn and multiscale ***,all four multiscale entropies along with their single-scale counterparts were employed to extract discriminating features from bearing vibration signals,and their classification performance was evaluated using support vector machines (SVMs).Experimental results demonstrated that all four multiscale entropies outperformed single-scale ones,whilst multiscale FSampEn was superior to other multiscale methods,especially when analyzed signals were contaminated by heavy *** with statistical features in time domain also support the use of multiscale FSampEn.

关键词： Fault diagnosis Bearing Multiscale entropy Feature extraction Support vector machines (SVMs)

Mulberry leaf flavonoids protect against glucotoxicity-induced INS-1 cell apoptosis

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Journal of Traditional Chinese Medicine 2019年第2期39卷 153-159页

作者： Wang Ying Li Ming Yu Xuesong he sheng Wu Xinrong Wang Yan School of Chemistry Engineering Guangdong Pharmaceutical University School of Biosciences and Biopharmaceutics Guangdong Pharmaceutical University Department of Pharmacy General Hospital of Guangzhou Military Command of People's Liberation Army School of Traditional Chinese Medicine Guangdong Pharmaceutical University

OBJECTIVE:To investigate the effect of mulberry leaf flavonoids (MLF) on apoptosis of pancreatic cells induced by high ***:Long exposure to high glucose induces apoptosis of pancreaticβcells, which can lead to diabetes. In this study, we used the rat insulinoma cell line, INS-1. High glucose (33.3 mM) was used to establish a glucotoxicity model. The MTT assay was used to evaluate the MLF effect on cell ***-1 cells were treated with various concentra-tions of MLF (125, 250 and 500 mg/L) for 24 h, and then stimulated with 5.5 or 33.3 mM glucose for 48 ***, the cell supernatants were collected for enzyme-linked immunosorbent assay to determine the level of superoxide dismutase (SOD), catalase(CAT), glutathione peroxidase (GSH-Px), malondialdehyde (MDA), monocyte chemoattractant protein1 (MCP-1), tumor necrosis factor a (TNF-α) and interleukin 6 (IL-6). Western blotting was used to determine the expression of Bcl-2, Bax, caspase-3 and Caspase-9. Cell apoptosis was measured by Annexin V-FITC/propidium iodide double staining and flow ***:MLF (125-500 mg/L) improved cell viability. Furthermore, MLF (250 and 500 mg/L) inhibited apoptosis induced by high glucose. The anti-apoptosis effect of MLF was associated with increased SOD, CAT and GSH-Px expression, as well as reduced MDA levels in high-glucose-treated INS-1cells. Moreover, MLF upregulated Bcl-2 expression,downregulated Bax expression, and reduced the expression of caspase-3 and Caspase-9. Finally, MLF decreased the secretion of inflammatory cytokines and insulin in high-glucose-induced INS-1 ***:MLF is a potential therapeutic agent for preventing diabetes and related disorders.

关键词： Morus Plant leaves In suli no ma Flavon oids Toxicity Apoptosis

A two-dimensional constant-weight sparse modulation code for volume holographic data storage

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Journal of Zhejiang University-Science C(Computers and Electronics) 2011年第5期12卷 430-435页

作者： Hua-rong GU Liang-cai CAO Qing-sheng he Guo-fan JIN State Key Laboratory of Precision Measurement Technology and Instruments Tsinghua UniversiO Beijing 100084 China

In order to simplify the threshold determination,reduce the inter-pixel cross-talk,and improve the storage density for high-density volume holographic data storage,a two-dimensional constant-weight sparse modulation code is *** evaluation criteria and design rules are investigated based on the page-oriented optical data storage *** parameters are optimized to achieve large channel *** 8:16 modulation code is designed to reduce the raw bit error rate and its performances are experimentally evaluated.A raw bit error rate of the magnitude of 10 4 is obtained with a single-data-page storage and 10 3 with multiplexing.

关键词： Volume holographic data storage Modulation codes Sparse codes Raw bit error rate Channel capacity

New Type Regulating Valve Applied in Cooling System of Blast Furnace

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Journal of Iron and Steel Research International 2004年第2期11卷 1-3页

作者： he sheng-ping ZOU De-yu XU Gang LU De-chang Chongqing University Chongqing Iron and Steel Co

A new type regulating valve with the cooling mode of constant temperature difference water supply, temperature difference self operated regulating valve, was introduced into blast furnace cooling system to overcome shortcomings of the cooling mode of constant flow rate water supply. The results show that the temperature difference between inlet and outlet water of cooling wall can be decreased greatly and steadily, and the water supply for blast furnace cooling can be reduced considerably.

关键词： blast furnace cooling system self operated regulating valve

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Lowered water table causes species substitution while nitrogen amendment causes species loss in alpine wetland microbial communities

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Pedosphere 2021年第6期31卷 912-922页

作者： Yuntao LI Jin-sheng he Hao WANG Jizhong ZHOU Yunfeng YANG Haiyan CHU State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of Sciences71 East Beijing RoadNanjing 210008(China) University of Chinese Academy of Sciences Beijing 100049(China) Department of Ecology College of Urban and Environmental SciencesPeking UniversityBeijing 100871(China) State Key Laboratory of Grassland Agro-Ecosystems College of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhou 730000(China) State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084(China) Institute for Environmental Genomics Department of Microbiology and Plant Biology and School of Civil Engineering and Environmental SciencesUniversity of OklahomaNorman OK 73019(USA) Earth Science Division Lawrence Berkeley National LaboratoryBerkeley CA 94270(USA)

Alpine wetlands are hotspots of carbon(C)storage and methane emission,and they could be key contributors to global *** recent years,rapid warming has lowered the water table in alpine wetlands on the Tibetan Plateau,concurrent with intensified nitrogen(N)deposition via anthropogenic *** carried out a field experiment to investigate the ecological impacts of these two factors on soil bacterial and functional communities,which are essential drivers of greenhouse gas *** amendment alone decreased the phylogenetic alpha-diversity of bacterial communities which could be offset by lowered water *** contrast,microbial functional alpha-diversity,revealed by a high-throughput microarray,remained *** bacterial and functional beta-diversity responded to lowered water table,but only bacterial community responded to N *** alpha-Proteobacteria,beta-Proteobacteria,and Bacteroidetes were the major responsive bacterial lineages,and C degradation,methanogenesis,alkaline shock,and phosphorus oxidation were the major responsive functional *** analysis revealed that N amendment changed bacterial community structure mainly via species loss processes but did not affect bacterial functional communities,with soil pH and ammonium as the key factors influencing changes in bacterial community ***,lowered water table altered bacterial and functional communities through species substitution processes linked to soil pH and soil *** to our results,the response mechanisms of microbial communities to lowered water table and N amendment are fundamentally different in alpine wetlands.

关键词： alpha-diversity bacterial community beta-diversity microbial functional community N amendment water table lowering

The Effects of the Chemical Components of Soil Salinity on Electrical Conductivity in the Region of the Delta Oasis of Weigan and Kuqa Rivers,China

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Agricultural Sciences in China 2009年第8期8卷 985-993页

作者： ZHANG Fei Tashpolat Tiyip DING Jian-li Gregory N Taff he Qi-sheng Resources and Environment Department Xinjiang University/Key Laboratory of Oasis Ecology Ministry of Education Urumqi 830046P.R. China Graduate School Xinjiang University Urumqi 830046 P.R. China Department of Earth Sciences The University of Memphis TN 38152 USA State Key Laboratory of Remote Sensing Science Institute of Remote Sensing Applications Chinese Academy of Sciences Beijing100101 P.R. China

In order to assess the effects of chemical properties of soil salinity on electrical conductivity of 1：5 soil/water extract （EC1：5）, the study focused on revealing the main chemical factors contributing to EC of soil extracts and their relative importance. The relationship between EC1：5 and the chemical properties of soil salinity in the delta oasis of Weigan and Kuqa rivers, China, were studied using path coefficient analysis, a path analysis method. We studied each key element affecting EC1：5 either directly or indirectly. The results obtained show that the salt content, total dissolved solids （TDS）, and the sum of the sodium ion concentration and the kalium ion concentration are the most influential factors on 1：5 soil/ water extract （EC1：5） in the 0-10 cm and the 30-50 cm soil layer. The results show that the sequence of direct path coefficients in the 0-10 cm and the 30-50 cm soil layers on soil conductivity is TDS→Na^＋＋ K^＋→Salt content→Ca^2＋→Cl-→the sodium dianion ratio （SDR）→pH→ SO4^2-→HCO3^-→Mg^2＋→the soluble sodium percentage （SSP） sodium absorption ratio （SAR） and TDS→Salt content→Na^＋＋ K^＋→Ca^2＋→SDR→Mg^2＋→HCO3^-→SSP→pH→SO4^2-→SAR→Cl^-. The salt content, chlorine ion, and SAR are the main factors affecting 1：5 soil/water extract （EC1：5） in the 10-30 centimeter soil layer. The order of direct path coefficients result is as follows： Salt content→Cl^-→SAR→SSP→TDS→Ca^2＋→Mg^2＋= SO4^2-→HCO3^-→pH→SDR→Na^- ＋ K^＋. Moreover, the effects of HCO3^-, pH were very weak. Though the direct path coefficients between EC1：5 and SAR, SO4^2- and Ca^2＋ were not high, influence of other chemical factors caused the coefficients to increase, making the summation of their direct and indirect path coefficients relatively high. The models of the different soil layers were structured separately. Evidences showed that multiple regression relations between EC1：5 and most of the primary factors had sound reliability and very good accuracy. The research results can serve as a reference

关键词： chemical properties of soil electrical conductivity of soil soil salinity the delta oasis of Weigan and Kuqa rivers

HIGH-SPEED FLOW EROSION ON A NEW ROLLER COMPACTED CONCRETE DAM DURING CONSTRUCTION

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Journal of Hydrodynamics 2012年第1期24卷 32-38页

作者： WANG Xin LUO Shao-ze HU Ya-an YUAN Qiang WANG he-sheng ZHAO Lan-hao Hydraulic Engineering Department Nanjing Hydraulic Research InstituteNanjing 210029China State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering -Nanjing 210098China College of Water Conservancy and Hydropower Engineering Hohai UniversityNanjing 210098China

A new roller compacted concrete dam of Fengman Hydropower Station is to be built in the toe of the old dam,which was identified as a dangerous *** new dam during construction would be influenced by the high-speed flow discharged from the old dam,which is an important problem to be considered for the first time in China,and which would affect the construction of the whole ***,a series of erosion experiments were conducted in this article.A high-speed flow erosion test apparatus was developed for the erosion experiments of the new dam *** maximum jet velocity goes up to 40 m/s and the section area of the nozzle is 0.0025 *** the process of experiments,the equipment shows a good *** wear tests for two types of materials used in the new dam,a roller compacted concrete and a distorted concrete with four kinds of ages were carried out with the flow velocity in the range of 30 m/s-35 m/*** parameters and erosion laws for the two types of concretes with different ages were determined,and a general relationship between the erosion rate and the flow velocity is obtained as：,with the velocity exponent between 3.33 and *** is concluded that the erosion resistance of the distorted concrete is better than that of the roller compacted concrete and the mechanical properties of the concretes of over 14 d age are influenced slightly by the water *** test results might serve as a practical technique guide for the safety of this project during its construction in the flood season.

关键词： high-speed flow impact apparatus erosion test roller compacted concrete hydraulic structures

Properties of High Basicity Mold Fluxes for Peritectic Steel Slab Casting

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Journal of Iron and Steel Research International 2012年第7期19卷 39-45页

作者： LONG Xiao he sheng-ping XU Jian-fei HUO Xu-ling WANG Qian Chongqing Key Laboratory of Metallurgical Engineering College of Materials Science and EngineeringChongqing UniversityChongqing 400044China

In high speed continuous casting of peritectic steel slabs, mold fluxes with high basicity are required for less surface defect product. However, the basicity of remaining liquid slag film tends to decrease in casting process because of the crystallization of 3CaO ·2SiO2 · CaF2. Thus, a way is put forward to improve mold fluxesr properties by raising the original basicity. In order to confirm the possibility of this method, the effect of rising original basicity on the properties of mold fluxes is discussed. Properties of high fluorine based mold fluxes with different basicities and contents of CaF2 , Na2 O, and MgO were measured, respectively. Then, properties of higher basicity mold fluxes were discussed and compared with traditional ones. The results show that increasing the basicity index can improve the melting and flow property of mold fluxes. With the increasing basicity, crystallization rate of mold fluxes increases obviously and crystallization temperature tends to decrease when the basicity exceeds 1.35. The method presen- ted before is proved as a potential way to resolve the contradiction between horizontal heat transfer controlling and solidified shell lubricating for peritectic steel slab casting. But further study on improving the flow property of liquid slag is needed. This work can be used to guide mold fluxes design for high speed continuous casting of peritectic steel slabs.

关键词： mold flux high basicity crystallization property peritectic steel