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Maximizing deviation method for multiple attribute decision making under q-rung orthopair fuzzy environment

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Defence Technology（防务技术） 2020年第5期16卷 1073-1087页

作者： Jie Wang Gui-wu wei cun wei Jiang Wu School of Business Sichuan Normal UniversityChengdu610101PR China School of Statistics Southwestern University of Finance and EconomicsChengdu611130PR China

Because of the uncertainty and subjectivity of decision makers in the complex decision-making environment,the evaluation information of alternatives given by decision makers is often fuzzy and *** a generalization of intuitionistic fuzzy set(IFSs)and Pythagoras fuzzy set(PFSs),q-rung orthopair fuzzy set(q-ROFS)is more suitable for expressing fuzzy and uncertain ***,in actual multiple attribute decision making(MADM)problems,the weights of DMs and attributes are always completely unknown or partly known,to date,the maximizing deviation method is a good tool to deal with such ***,combine the q-ROFS and conventional maximizing deviation method,we will study the maximizing deviation method under q-ROFSs and q-RIVOFSs in this ***,we briefly introduce the basic concept of q-rung orthopair fuzzy sets(q-ROFSs)and q-rung interval-valued orthopair fuzzy sets(q-RIVOFSs).Then,combine the maximizing deviation method with q-rung orthopair fuzzy information,we establish two new decision making *** this basis,the proposed models are applied to MADM problems with q-rung orthopair fuzzy *** with existing methods,the effectiveness and superiority of the new model are *** method can effectively solve the MADM problem whose decision information is represented by q-rung orthopair fuzzy numbers(q-ROFNs)and whose attributes are incomplete.

关键词： Multiple attribute decision making(MADM) q-rung orthopair fuzzy sets(q-ROFSs) q-rung interval-valued orthopair fuzzy sets (q-RIVOFSs) Maximizing deviation method Building materials

Preparation of Polystyrene/Triphenyl Phosphate Composites by Suspension Polymerization and Melt Extrusion Method A Comparative Study

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Chinese Journal of Polymer Science 2016年第6期34卷 688-696页

作者： cun-wei Zhang Rong-jie Yang 李向梅 De-qi Yi National Engineering Research Center of Flame Retardant Materials School of Materials Beijmg Institute of Technology Beijing 100081 China Fire Command Department Chinese People's Armed Police Forces Academy Langfang 065000 China

Polystyrene （PS）/triphenyl phosphate （TPP） composites were prepared by both suspension polymerization and melt extrusion, and a comparative study of the flame retardance and mechanical properties was carried out. The results showed that suspension polymerization was a better technique than melt extrusion for obtaining good dispersity of the PS/TPP composite. The TPP nanoparticles, which were approximately 50 nm in size, were homogenously and uniformly dispersed in the PS matrix by suspension polymerization in one-step. However, the PS/TPP composite was partially agglomerated, exhibiting irregularly shaped micron-scale particles as a result of melt extrusion. In contrast to the melt extrusion, the limited oxygen index （LOI） of the PS/TPP nanocomposite by suspension polymerization increased to 22.6% from 21.8%, and time to ignition （TTI） increased by 12.3%, the peak heat release rate （PHRR） decreased by 8.5%, and the total heat release （THR） decreased by 11.0%. The mechanical properties of the PS/TPP nanocomposite by suspension polymerization also increased. The tensile strength, elongation at break, and flexural strength increased by 36.4%, 8.5%, and 108%, respectively.

关键词： Polystyrene Triphenyl phosphate Flame retardance Suspension polymerization Melt extrusion.

Acute pancreatitis:Etiology and common pathogenesis

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World Journal of Gastroenterology 2009年第12期15卷 1427-1430页

作者： Guo-Jun Wang Chun-Fang Gao Dong wei cun Wang Si-Qin Ding Institute of Digestive Surgery and Department of General Surgery 150 Hospital of Chinese PLA Gaoxin District Luoyang 471031 Henan Province China

Acute pancreatitis is an inflammatory disease of the *** etiology and pathogenesis of acute pancreatitis have been intensively investigated for centuries *** causes of acute pancreatitis have been discovered,but the pathogenetic theories are *** most common cause of acute pancreatitis is gallstone impacting the distal common bile-pancreatic *** majority ofinvestigators accept that the main factors for acute billiary pancreatitis are pancreatic hyperstimulation and bile-pancreatic duct obstruction which increase pancreatic duct pressure and active trypsin *** pancreatitis occurs when intracellular protective mechanisms to prevent trypsinogen activation or reduce trypsin activity are ***,little is known about the other acute *** hypothesize that acute biliary pancreatitis and other causes of acute pancreatitis possess a common *** hyperstimulation and pancreatic duct obstruction increase pancreatic duct pressure,active trypsin reflux,and subsequent unregulated activation of trypsin within pancreatic acinar *** activation within the pancreas leads to auto-digestion of the gland and local *** the hypothesis is confirmed,traditional therapeutic strategies against acute pancreatitis may be *** of pancreatic duct pressure should be advocated in the treatment of acute pancreatitits which may greatly improve its outcome.

关键词： Acute pancreatitis Pathogenesis Etiology Pancreatic duct obstruction Pancreatichyperstimulation Pancreatic duct pressure

Copper-catalyzed Ullmann-type synthesis of diaryl ethers assisted by salicylaldimine ligands

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Chinese Chemical Letters 2014年第2期25卷 337-340页

作者： cun-wei Qian Wen-Lin Lv Qian-Shou Zong Mao-Yuan Wang Dong Fang School of Chemistry and Chemical Engineering Yancheng Teachers University School of Biological and Chemical Engineering Jiaxing University

A series of salicylaldimine ligands were designed to promote the copper-catalyzed Ullmann cross- coupling reaction. After a screening process, 2-（（2-isopropylphenylimino）methyl）phenol was found to serve as a good supporting ligand for this reaction. Employing this Schiff-base ligand as a new supporting ligand, the copper-catalyzed coupling reactions of aryl bromides and aryl iodides with various phenols successfully proceeded in good yields under mild conditions. Various diaryl ethers were obtained with excellent yields in dioxane in the presence of K3P04 and a catalytic amount of copper（I） salt.

关键词： Copper catalyst Salicylaldimine ligands Ullmann coupling Diaryl ethers

Exosomes derived from BMSCs ameliorate cyclophosphamide-induced testosterone deficiency by enhancing the autophagy of Leydig cells via the AMPK-mTOR signaling pathway

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Asian Journal of Andrology 2023年第4期25卷 474-483页

作者： Hao-Yu Liang Fan Peng Min-Jia Pan Sen-Lin Liao cun wei Guan-Yang wei Xiao Xie Kang-Yi Xue Ming-Kun Chen Jian-Kun Yang Wen-Bin Guo cun-Dong Liu Qi-Zhao Zhou Department of Urology The Third Affiliated Hospital of Southern Medical UniversityGuangzhou 510630China The Third School of Clinical Medicine Southern Medical UniversityGuangzhou 510515China The First School of Clinical Medicine Southern Medical UniversityGuangzhou 510515China

Cyclophosphamide-induced testosterone deficiency (CPTD) during the treatment of cancers and autoimmune disorders severelyinfluences the quality of life of patients. Currently, several guidelines recommend patients suffering from CPTD receive testosteronereplacement therapy (TRT). However, TRT has many disadvantages underscoring the requirement for alternative, nontoxictreatment strategies. We previously reported bone marrow mesenchymal stem cells-derived exosomes (BMSCs-exos) could alleviatecyclophosphamide (CP)-induced spermatogenesis dysfunction, highlighting their role in the treatment of male reproductive ***, we further investigated whether BMSCs-exos affect autophagy and testosterone synthesis in Leydig cells (LCs). Here,we examined the effects and probed the molecular mechanisms of BMSCs-exos on CPTD in vivo and in vitro by detecting theexpression levels of genes and proteins related to autophagy and testosterone synthesis. Furthermore, the testosterone concentrationin serum and cell-conditioned medium, and the photophosphorylation protein levels of adenosine monophosphate-activatedprotein kinase (AMPK) and mammalian target of rapamycin (mTOR) were measured. Our results suggest that BMSCs-exos couldbe absorbed by LCs through the blood–testis barrier in mice, promoting autophagy in LCs and improving the CP-induced low serumtestosterone levels. BMSCs-exos inhibited cell death in CP-exposed LCs, regulated the AMPK-mTOR signaling pathway to promoteautophagy in LCs, and then improved the low testosterone synthesis ability of CP-induced LCs. Moreover, the autophagy inhibitor,3-methyladenine (3-MA), significantly reversed the therapeutic effects of BMSCs-exos. These findings suggest that BMSCs-exospromote LC autophagy by regulating the AMPK-mTOR signaling pathway, thereby ameliorating CPTD. This study provides novelevidence for the clinical improvement of CPTD using BMSCs-exos.

关键词： autophagy bone marrow mesenchymal stem cells cyclophosphamide exosomes Leydig cells testosterone deficiency

BP Neural Network of Continuous Casting Technological Parameters and Secondary Dendrite Arm Spacing of Spring Steel

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Journal of Iron and Steel Research International 2011年第8期18卷 25-29页

作者： HANG Li-hong WANG Ai-guo TIAN Nai-yuan ZHANG wei-cun FAN Qiao-li Metallurgical Engineering Research Institute University of Science and Technology Beijing Beijing 100083 China Ansteel Engineering Technology Corporation Limited Anshan 114021 Liaoning China School of Metallurgical and Ecological Engineering University of Science and Technology Beijing Beijing 100083 China School of Information Engineering University of Science and Technology Beijing Beijing 100083 China

The continuous casting technological parameters have a great influence on the secondary dendrite arm spacing of the slab, which determines the segregation behavior of materials. Therefore, the identification of technological parameters of continuous casting process directly impacts the property of slab. The relationships between continuous casting technological parameters and cooling rate of slab for spring steel were built using BP neural network model, based on which, the relevant secondary dendrite arm spacing was calculated. The simulation calculation was also carried out using the industrial data. The simulation results show that compared with that of the traditional method, the absolute error of calculation result obtained with BP neural network model reduced from 0. 015 to 0. 0005, and the relative error reduced from 6, 76 % to 0.22 %. BP neural network model had a more precise accuracy in the optimization of continuous casting technological parameters.

关键词： continuous casting technological parameter secondary dendrite arm spacing BP neural network

Regional Renewable Energy Optimization Based on Economic Benefits and Carbon Emissions

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Energy Engineering 2023年第6期120卷 1465-1484页

作者： cun wei Yunpeng Zhao Mingyang Cong Zhigang Zhou Jingzan Yan Ruixin Wang Zhuoyang Li Jing Liu School of Architecture Harbin Institute of TechnologyKey Laboratory of Cold Region Urban and Rural Human Settlement Environment Science and TechnologyMinistry of Industry and Information TechnologyHarbinChina Heilongjiang Institute of Construction Technology HarbinChina Qingdao Sino-German Ecopark Real Estate Co. Ltd.QingdaoChina

With increasing renewable energy utilization,the industry needs an accurate tool to select and size renewable energy equipment and evaluate the corresponding renewable energy *** study aims to bring new insights into sustainable and energy-efficient urban planning by developing a practical method for optimizing the production of renewable energy and carbon emission in urban ***,we provide a detailed formulation to calculate the renewable energy demand based on total energy ***,we construct a dual-objective optimization model that represents the life cycle cost and carbon emission of renewable energy systems,after which we apply the differential evolution algorithmto solve the optimization ***,we conduct a case study in Qingdao,China,to demonstrate the effectiveness of this *** to the baseline design,the proposedmodel reduced annual costs and annual carbon emissions by 14.39%and 72.65%,*** results revealed that dual-objective optimization is an effective method to optimize economic benefits and reduce carbon ***,this study will assist energy planners in evaluating the impacts of urban renewable energy projects on the economy and carbon emissions during the planning stage.

关键词： Renewable energy utilization renewable energy plan differential evolution carbon emission

参数不确定离散随机系统的加权多模型自适应控制

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自动化学报 2015年第3期41卷 541-550页

作者：张维存北京科技大学自动化学院北京100083

研究离散时间参数不确定的线性随机系统的加权多模型自适应控制(weighted multiple model adaptive control,WMMAC)问题,采用一种改进的加权算法,在模型输出误差可分的情况下,可以保证其收敛性;然后在加权收敛的前提下,借助虚拟等价系... 详细信息

研究离散时间参数不确定的线性随机系统的加权多模型自适应控制(weighted multiple model adaptive control,WMMAC)问题,采用一种改进的加权算法,在模型输出误差可分的情况下,可以保证其收敛性;然后在加权收敛的前提下,借助虚拟等价系统的概念和方法证明了此类加权多模型自适应控制系统的稳定性和收敛性.本文所采用的分析方法和结论不依赖于局部控制策略和加权算法的具体形式,而只取决于它们的某些属性.最后,基于Matlab对相应的加权多模型自适应控制系统进行了仿真,仿真结果验证了加权算法的收敛性和闭环控制系统的稳定性、收敛性.

关键词：加权算法加权多模型自适应控制稳定性收敛性虚拟等价系统

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加权多模型自适应控制的稳定性

控制理论与应用 2012年第12期29卷 1657-1660页

作者：张维存北京科技大学自动化学院北京100083

加权多模型自适应控制的稳定性证明是一个未解决的问题.本文采用基于模型输出误差的递推加权算法,在模型输出误差可分的情况下,可以保证其收敛性;然后在加权收敛的前提下,借助虚拟等价系统的概念和方法证明了加权多模型自适应控制系统... 详细信息

加权多模型自适应控制的稳定性证明是一个未解决的问题.本文采用基于模型输出误差的递推加权算法,在模型输出误差可分的情况下,可以保证其收敛性;然后在加权收敛的前提下,借助虚拟等价系统的概念和方法证明了加权多模型自适应控制系统的稳定性和收敛性.本文的分析方法和结论不依赖于具体的局部控制策略和具体的权值算法,而只取决于它们的某些属性.

关键词：加权多模型自适应稳定性收敛性虚拟等价系统