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Progress in Natural Science:Materials International 2015年第5期25卷 486-495页

作者： Songming Zhang Xingrui Shi Jiangbo sha School of Materials Science and Engineering Beihang University

Al and Y modified silicide coatings on the Nb-15Si-22Ti-（2,14）Cr-2Al-2Hf-2v.alloys（where the alloy with 2 at%Cr or 14 at%Cr is hereafter referred to as 2Cr and 14 Cr alloy,respectiv.ly） was prepared by pack *** microstructural ev.lution and the oxidation behav.ours of the coating 2Cr and 14 Cr samples at 1250 ℃ were *** 2Cr alloy consists of Nb solid solution(NbSS) and α-Nb5Si3silicide,while the Lav.s C15-Cr2Nb phase arised in the 14 Cr *** coating structure of the coating 2Cr sample contained the outer（Nb,X）Si2+（Nb,X）5Si3layer,the middle（Nb,X）5Si3layer and the inner undev.loped intermetallic（Nb,Ti）3（Al,X） layer,the structure of the coating 14 Cr sample consisted of the outer single（Nb,X）Si2layer,the middle（Nb,X）5Si3layer,the transition（Nb,Ti）(Cr,Al) layer and the inner（Cr,Al）2（Nb,Ti） *** coating 14 Cr sample exhibited better oxidation resistance than the coating 2Cr *** an outer single（Nb,X）Si2layer,a compact oxide scale consisting of SiO2and TiO2formed on the coating14 Cr sample,which can efficiently prev.nt the substrate from *** the coating 2Cr sample with an outer（Nb,X）Si2+（Nb,X）5Si3layer,the oxide scale of the SiO2,TiO2,Nb2O5and CrNbO4mixture generated,and the scale spalled out from the surface of the sample,resulting in disastrous failure.

关键词： Nb–Si based alloys Pack cementation Silicide coating Oxidation behav.our

Transarterial chemoembolization combined with radiofrequency ablation in the treatment of large hepatocellular carcinoma with stage C

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World Journal of Clinical Cases 2022年第33期10卷 12156-12163页

作者： sha-sha Sun Wen-Dong Li Jing-Long Chen Department of Oncology Capital Medical University Affiliated Beijing Ditan HospitalBeijing 100015China

BACKGROUND The combination therapy of transarterial chemoembolization and radiofrequency ablation(TACE-RFA)shows promising efficacy in large hepatocellular carcinoma(HCC).Data on the clinical efficacy and safety of TACE-RFA for large HCC with barcelona clinic liv.r cancer(BCLC)stage C are lacking in *** To determine the safety and efficacy of TACE-RFA for large,adv.nced *** Patients of HCC with BCLC stage C who were treated with TACE-RFA or TACE alone at our institute from August 2008 to January 2017 were retrospectiv.ly *** complications were *** associations between ov.rall surv.v.l(OS)and treatment method were *** Data were collected from 102 HCC *** them,64 underwent TACERFA and 38 underwent *** combination of TACE and RFA was *** complications were *** median OS in the TACE-RFA group was significantly longer than that in the TACE group(8.0 mo v. 4.0 mo,P=0.000).The 6-,12-and 24-mo surv.v.l rates of the combination group were 68.8%,34.4%,and 10.9%,respectiv.ly,while those of the TACE group were 36.8%,7.9%,and 0%(Pv.ntage ov.r TACE alone in improv.ng OS in large HCC patients with BCLC stage C.

关键词： Large adv.nced hepatocellular carcinoma Transarterial chemoembolization Radiofrequency ablation Ov.rall surv.v.l Combination therapy

Treatment of Helicobactor pylori infection:analysis of Chinese clinical trials

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World Journal of Gastroenterology 2000年第3期6卷 324-325页

作者： Li YY sha WH First Municipal Peoples Hosp Guangzhou Dept Gastroenterol Guangzhou 510180 Peoples R China

INTRODUCTION E radication of Helicobacter pylori(Hp)infection isgenerally not *** clinical regimens hav.been recommended in the *** theexperience from the other countries and the practicein China,Chinese doctors hav. tried *** this study,we collected and pooled thedata from Chinese literature to ev.luate the effectof different regimens in Chinese patients infectedwith Hp.

关键词： Helicobacter infection/therapy clinical trials ev.luating studies Helicobacter pylori

Human leukocyte antigen and donor-specific antibodies in liv.r transplantation

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World Journal of Gastroenterology 2025年第2期31卷 157-160页

作者： Qimudesiren sha-Na Chen Li-Ren Qian School of Clinical Medicine Inner Mongolia Minzu UniversityTongliao 028000Inner Mongolia Autonomous RegionChina Department of Hematology International Mongolian Hospital of Inner MongoliaHohhot 010065Inner Mongolia Autonomous RegionChina Senior Department of Hematology The Fifth Medical Center of PLA General HospitalBeijing 100071China The Second School of Clinical Medicine Southern Medical UniversityGuangzhou 510515Guangdong ProvinceChina

In this article,we comment on an article published in a recent issue of the World Journal of *** specifically focus on the roles of human leukocyte antigen(HLA)and donor-specific antibodies(DSAs)in pediatric liv.r transpl-antation(LT),as well as the relationship between immune rejection after LT and ***,LT remains the standard of care for pediatric patients with end-stage liv.r disease or sev.re acute liv.r ***,acute and chronic re-jection continues to be a significant cause of graft dysfunction and *** mismatch significantly reduces graft surv.v.l and increases the risk of acute *** them,D→R one-way mismatch at three loci was significantly related to graft-v.rsus-host disease incidence after *** adv.rse impact of HLA-DSAs on LT recipients is already ***,the ev.luation of HLA and DSA is crucial in pediatric LT.

关键词： Liv.r transplantation Human leukocyte antigen Donor-specific antibodies De nov. donor-specific antibody Antibody-mediated rejection

Management of CO_(2) in a tomato greenhouse using WSN and BPNN techniques

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International Journal of Agricultural and Biological Engineering 2015年第4期8卷 43-51页

作者： Li Ting Zhang Man Ji Yuhan sha sha Jiang Yiqiong Li Minzan Key Laboratory of Modern Precision Agriculture System Integration Research Ministry of EducationCollege of Information and Electrical EngineeringChina Agriculture UniversityBeijing 100083China

Rational management of CO_(2) can improv. the net photosynthetic rate of plants,thereby improv.ng crop yield and *** order to precisely manage CO_(2) in a greenhouse,a wireless sensor network(WSN)system was dev.loped to monitor greenhouse env.ronmental parameters in real time,including air temperature,humidity,CO_(2) concentration,soil temperature,soil moisture,and light *** WSN system includes sev.ral sensor nodes,a gateway node,and remote management *** sensor nodes can collect 0-5 v.and 4-20 mA analog signals and univ.rsal asynchronous receiv.r/transmitter(UART)*** gateway node can process and transmit the data and commands between sensor nodes and remote management *** remote management software prov.des a friendly interface between user and *** can inquire about real-time data,and set the parameters of the *** photosynthetic rate of tomato plants were studied in the flowering stage.A LI-6400XT portable photosynthesis analyzer was used to measure the photosynthetic rates of the tomato plants,and the env.ronmental parameters of leav.s were controlled according to the presetting *** photosynthetic rate prediction model of a single leaf was established based on a back propagation neural network(BPNN).The env.ronmental parameters were used as input neurons after being processed by principal component analysis(PCA),and the photosynthetic rate was taken as the output *** performance of the prediction model was ev.luated,and the results showed that the correlation coefficient between the simulated and observ.d data sets was 0.9899,and root-mean-square error(RMSE)was ***,when different CO_(2) concentrations were selected as the input to predict the photosynthetic rate,the simulated and observ.d data showed the same *** to the abov. analysis,it was concluded that the model can be used for quantitativ. regulation of CO_(2) for tomato plants in greenhouses.

关键词： WSN ZigBee greenhouse information photosynthetic rate CO_(2)fertilization

Hydrothermal Synthesis and Crystal Structure of a Cd^(2+) Supramolecular Coordination Complex{[Cd_2(HCAM)_2(H_2O)_4]·3.5H_2O}_n with a 3D Metal-organic Open Framework

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Chinese Journal of Structural Chemistry 2010年第7期29卷 1067-1071页

作者： ZHOU Qiu-Xiang LI sha-sha WANG Meng BAI Xiao-Jie Langfang Teachers College Langfang 065000 China College of Chemical Engineering and Technology Hebei University of Technology Tianjin 300130 China

A three-dimensional coordination polymer {[Cd2（HCAM）2（H2O）4].***2O}n was synthesized by the hydrothermal reaction of H3CAM （H3CAM = 4-hydroxypyridine-2,6-dicerboxylic acid） and Cd（NO3）2·4H2O. The structure was characterized by elemental analysis, thermal grav.metric analysis, infrared spectroscopy and single-crystal X-ray diffraction. It crystallizes in triclinic, space group P1 with a = 9.4389（19）, b = 11.009（2）, c = 11.192（2） A, α = 87.87（3）, β= 74.63（3）, γ = 81.22（3）°, v. 1108.2（4） A3, Z = 2, Dc= 2.164 g/cm3,μ = 2.011 mm^-1, F（000） = 710, R = 0.0419 and wR = 0.1170. X-ray analysis rev.als that the title compound adopts a one-dimensional staircase structure by carboxyl of H3CAM and water molecules, and it is further linked by hydrogen bonds to form a 3-D metal-organic open framework. The thermal grav.metric analysis displays that the framework exists stably below 300 ℃.

关键词： hydrothermal synthesis 3D coordination polymer crystal structure

Mechanism of adipose-deriv.d mesenchymal stem cell exosomes in the treatment of heart failure

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World Journal of Stem Cells 2023年第9期15卷 897-907页

作者： Lei Wang Jin-Jin Zhang sha-sha Wang Liang Li Department of Geriatric Medicine Fourth Medical Center of PLA General HospitalBeijing 100048China

BACKGROUND Heart failure(HF)is a global health problem characterized by impaired heart *** remodeling and cell death contribute to the dev.lopment of *** treatments such as digoxin and angiotensin receptor blocker drugs hav. been used,their effectiv.ness in reducing mortality is *** are exploring the use of adipose-deriv.d mesenchymal stem cell(ADMSC)exosomes(Exos)as a potential therapy for *** v.sicles,secreted by cells,may aid in tissue repair and regulation of inflammation and immune ***,further inv.stigation is needed to understand the specific role of these v.sicles in HF *** To inv.stigate the mechanism of extracellular v.sicles produced by ADMSC s in the treatment of *** Exogenous surface markers of ADMSCs were found,and ADMSCs were *** The identification of surface markers showed that the surface markers CD44 and CD29 of adipose-deriv.d stem cells(ADSCs)were well expressed,while the surface markers CD45 and CD34 of ADSCs were negativ.,so the cultured cells were considered *** blotting detected the Exo surface marker protein,which expressed CD63 protein but did not express calnexin protein,indicating that ADSC-deriv.d Exos were successfully *** The secretion of MSCs from adipose tissue can increase ATP lev.ls,block cardiomyocyte apoptosis,and enhance the heart function of animals susceptible to *** inhibition of Bax,caspase-3 and p53 protein expression may be related to this process.

关键词： Adipose-deriv.d mesenchymal stem cell exosomes Heart failure Cardiomyocyte apoptosis

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时滞系统控制算法的改进

基础自动化 2000年第6期7卷 9-10,39页

作者：韩绍坤 Nоv.кov.v.А . 北京理工大学北京100081 St.Petersburg ETU russia197396

针对著名的 Smith预估器,为了补偿变化的时滞,采用自适应补偿算法,使补偿时滞的模型可以跟踪时滞的变化,从而提出一种新型控制算法.仿真结果表明,改进的方案可以明显地提高控制系统精度.

关键词：时滞系统控制算法 Smith预估器自适应控制

Early screening for post-stroke depression and its effect on functional outcomes, quality of life, and mortality: A meta-analysis

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World Journal of Psychiatry 2024年第9期14卷 1397-1403页

作者： Jie Dai sha-sha Zhao Su-Xiang Zhang Department of Neurology 6 Cangzhou Central HospitalCangzhou 061001Hebei ProvinceChina

BACKGROUND Post-stroke depression(PSD)is a common and debilitating condition affecting stroke surv.v.rs,significantly impacting their recov.ry and ov.rall quality of *** To assess the effects of early PSD screening on functional outcomes,quality of life,and *** From an initial pool of 1065 articles,6 studies met the inclusion criteria and were selected for *** outcomes were measured using the functional independence measure(FIM).RESULTS The analysis rev.aled a significant improv.ment in FIM scores for a PSD scree-ning group compared to controls[standardized mean difference(SMD)=8.90,95%confidence interv.l(CI):4.65-13.15,Pv.-year mortality rates for the PSD screening *** Early PSD screening enhances functional recov.ry,improv.s quality of life,and reduces mortality rates in stroke ***,integrating PSD screening into routine stroke care improv.s long-term outcomes for patients.

关键词： Post-stroke depression Early screening Functional outcomes Quality of life Mortality

Analysis of Higher Order System with Impulse Exciting Functions in Z-Domain

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Circuits and Systems 2016年第11期7卷 3951-3970页

作者： Branislav.Dobrucký Pav.l Štefanec Mariana Beňov. Oleg v. Chernoyarov.Michal Pokorný Faculty of Electrical Engineering University of ?ilina ?ilina Slovak Republic Department of Radio Engineering Dev.ces and Antenna Systems National Research University Moscow Power Engineering Institute Moscow Russia

This paper deals with mathematical modelling of impulse wav.forms and impulse switching functions used in electrical engineering. Impulse switching functions are later inv.stigated using direct and inv.rse z-transformation. The results make possible to present those functions as infinite series expressed in pure numerical, exponential or trigonometric forms. The main adv.ntage of used approach is the possibility to calculate inv.stigated v.riables directly in any instant of time;dynamic state can be solv.d with the step of sequences (T/6, T/12) that means v.ry fast. Theoretically deriv.d wav.forms are compared with simulation worked-out results as well as results of circuit emulator LT spice which are giv.n in the paper.

关键词： Impulse Systems Switching Function Z-Transformation Inv.rse Z-Transformation Steady State Operation Dynamical State Model Modelling and Simulation