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低膨胀系数聚酰亚胺膜材料结构与性能关系

膜科学与技术 2024年第3期44卷 174-184页

作者：罗琛孙璐鑫王金可阿布都合里力·亚克甫董玥董霄朱德兆代振宇杨卫胜马小华中国石油天然气股份有限公司石油化工研究院北京102206 天津工业大学材料科学与工程学院省部共建分离膜与膜过程国家重点实验室天津300387 中国石油大学(北京)理学院北京102249 中国科学技术大学热科学和能源工程系合肥230026

聚酰亚胺(PI)膜材料热膨胀系数(CTE)的可控调节在半导体制造、芯片封装以及柔性显示等领域具有十分重要的意义.本研究从CTE原理出发,总结了在分子水平和凝聚态水平对PI膜CTE的调节方法.着重考察了分子主链结构、序列结构、取代基结构、... 详细信息

聚酰亚胺(PI)膜材料热膨胀系数(CTE)的可控调节在半导体制造、芯片封装以及柔性显示等领域具有十分重要的意义.本研究从CTE原理出发,总结了在分子水平和凝聚态水平对PI膜CTE的调节方法.着重考察了分子主链结构、序列结构、取代基结构、共聚、分子内/间相互作用、交联等分子链结构改变以及引入无机纳米颗粒、共混、取向、控制PI薄膜相转化过程、调控PI薄膜的制备等凝聚态结构对PI膜CTE的影响以及研究进展进行总结.并对低CTE的PI膜材料的调控的未来发展趋势进行展望.

关键词：膜材料聚酰亚胺 CTE 交联氢键

An Analytic method for Interval Bimatrix Games

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Journal of mathematics and System Science 2016年第2期6卷 66-71页

作者： G. Selin SAVASKAN Aykut Or yakup HACI Department of mathematics Canakkale Onsekiz Mart University Canakkale 17200 Turkey

This paper deals with rnxn two-person non-zero sum games with interval pay-offs. An analytic method for solving such games is given. A pair of Nash Equilibrium is found by using the method. The analytic method is effective to find at least one Nash Equilibrium （N.E） for two-person bimatrix games. Therefore, the analytic method for two-person bimatrix games is adapted to interval bimatrix games.

关键词： Bimatrix game Nash equilibrium interval payoff interval matrix

Optimum Tactics of Parallel multi-Grid Algorithm with Virtual Boundary Forecast method running on a Local Network with the PVm Platform

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Journal of Computer Science & Technology 2000年第4期15卷 355-359页

作者：郭庆平章社生卫加宁 ComputerScienceDepartment WuHanTransportationUniversityWuhan430063P.R.China

In this paper, an optimum tactic of multi-grid parallel algorithmwith virtual boundary forecast method is disscussed, and a two-stage implementationis presented. The numerical results of solving a non-linear heat tran... 详细信息

关键词： algorithm parallel multi-grid virtual boundary forecast (VBF),speedup network computing PVm

Corpus callosum in schizophrenia with deficit and non-deficit syndrome:a statistical shape analysis

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General Psychiatry 2021年第6期34卷 42-48页

作者： yaşar Türk Ilker Ercan Ibrahim Sahin Basak Erdemli Gursel Arda Uzunoglu CemÖge Elmas Beyazyüz yakup Albayrak Department of radiology Medical Faculty of Bülent Ecevit UniversityKozluZonguldakTurkey Department of Biostatistics Bursa Uludag University Faculty of MedicineBursaTurkey Department of radiology Bursa Uludag University Faculty of MedicineBursaTurkey Department of Psychiatry Çorlu State HospitalÇorluTurkey Department of Psychiatry Medical Faculty of Tekirdag Namık Kemal UniversityTekirdagTurkey

Background The corpus callosum(CC)is the most targeted region in the cerebrum that integrates cognitive data between homologous areas in the right and left *** Our study used statistical analysis to determine whether there was a correlation between shape changes in the CC in patients with schizophrenia(SZ)(deficit syndrome(DS)and non-deficit syndrome(NDS))and healthy control(HC)*** This study consisted of 27 HC subjects and 50 schizophrenic patients(20 with DS and 30 with NDS).3 patients with DS and 4 patients with NDS were ***-dimensional,sagittal,T1-spoiled,gradient-echo imaging was *** anatomical landmarks were selected and marked on each image using specific *** As to comparing the Procrustes mean shapes of the CC,statistically significant differences were observed between HC and SZ(DS+NDS)(p=0.017,James’s Fj=73.732),HC and DS(pmes’s Fj=140.843),HC and NDS(p=0.006,James’s Fj=89.178)and also DS and NDS(pmes’s Fj=152.967).Shape variability in the form of CC was 0.131,0.085,0.082 and 0.086 in the HC,SZ(DS+NDS),DS and NDS groups,*** This study reveals callosal shape variations in patients with SZ and their DS and NDS subgroups that take into account the CC’s topographic distribution.

关键词： schizophrenia shape analysis

Bellman Equation for Optimal Processes with Nonlinear multi-Parametric Binary Dynamic System

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Computer Technology and Application 2012年第1期3卷 84-87页

作者： yakup H. Hacl Kemal Ozen Department of mathematics Faculty of Sciences and Arts Canakkale Onsekiz Mart University Canakkale 17100 Turkey Department of mathematics Faculty of Sciences and Letters istanbul Technical University istanbu134469 Turkey Department of mathematics Faculty of Sciences and Arts Namlk Kemal University Tekirda~ 59030 Turkey

A process represented by nonlinear multi-parametric binary dynamic system is investigated in this work. This process is characterized by the pseudo Boolean objective functional. Since the transfer functions on the process are Boolean functions, the optimal control problem related to the process can be solved by relating between the transfer functions and the objective functional. An analogue of Bellman function for the optimal control problem mentioned is defined and consequently suitable Bellman equation is constructed.

关键词： Bellman equation bellman function galois field shift operator nonlinear multi-parametric binary dynamic system

Effects of Pruning methods on the Growth and Development of New Shoots and Fruit yield and Quality of Walnut

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Agricultural Biotechnology 2021年第5期10卷 1-4页

作者： ABDUXUKUr yakup mUHTAr Zari mANSUr Nasir research Institute of Economic Forestry Xinjiang Academy of ForestryUrumqi 830063China College of Horticulture Xinjiang Agricultural UniversityUrumqi 830052China

[Objectives]This study was conducted to screen out reasonable pruning methods of walnut,and provide practical guidance for high-yield cultivation of walnut.[methods]Xinfeng and Xinguang were used to study the effects of mechanical and artificial pruning methods on shoot growth,chlorophyll content in leaves,net photosynthetic rate and fruit quality.[results]The results showed that:①the pruning method had a significant impact on the number of new shoots,and the number of new shoots of mechanical pruning was significantly higher than that of manual pruning;②the pruning method had a significant impact on the chlorophyll content,and the chlorophyll content of Xinguang of mechanical pruning was significantly higher than that of manual pruning;③the pruning method had a significant impact on the net photosynthetic rate of leaves,and the net photosynthetic rate of manual pruning was significantly higher than that of manual pruning;④Pruning methods had a significant effect on the number of walnut fruit,and the fruit trees pruned manually were significantly higher than those pruned mechanically;⑤the pruning method had no significant impact on the single fruit weight;⑥Pruning methods had a significant effect on the shell yield of a single walnut *** shell yield of single walnut plant pruned manually was significantly higher than that pruned mechanically;⑦pruning mode had a significant impact on the yield of walnut per plant,and the yield of artificially pruned walnut per plant was significantly higher than that of mechanical pruning;and⑧Xinfeng s chlorophyll content,net photosynthetic rate,fruit number,shell yield per plant and kernel yield per plant were all better than that of Xinguang,in addition,the growth and development of new shoots,the fruit quantity and quality of fruit also were affected by the interaction effect of genotype and pruning mode×variety.[Conclusions]It can be seen that different pruning methods have significant effects on the growth and development

关键词： Walnut Pruning method manual pruning mechanical pruning

A multi-grid Parallel Computing model of Heat Transfer in Two-Layered material

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A Multi-grid Parallel Computing Model of Heat Transfer in Tw...

2001 International Symposium on Distributed Computing and Applications to Business, Engineering and Science

作者： yakup Paker Dennis Parkinson Qeen mary ＆ West field CollegeUniversity of London

＜正＞This article discusses the multi-grid parallel heat transfer model of the object combined with tow different *** using of the temperature continuing condition,we obtain the laitial and boundary condition problem,and a group of the difference equation solved by the VBF *** numertical data show that our algorithm has high speedup,and less calculation time than no-VBF algorithm.

关键词： Algorithm multi-grid Parallel Computing Difference Equation

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菊苣多糖对四氧嘧啶诱导糖尿病小鼠的影响

安徽农业科学 2024年第2期52卷 156-160页

作者：阿丽米热·买买提吾买尔江·牙合甫王晓杰马雪连夏利宁姚刚新疆农业大学动物医学学院新疆乌鲁木齐830052

[目的]探究菊苣多糖对糖尿病(Dm)模型小鼠肝脏氧化应激的缓解作用。[方法]采用乙醇提取法从菊苣种子中提取多糖,采用苯酚-硫酸法测定多糖,并测试DPPH自由基清除作用。采用四氧嘧啶复制小鼠Dm模型,取48只Dm小鼠随机分组为四氧嘧啶模型组(... 详细信息

[目的]探究菊苣多糖对糖尿病(Dm)模型小鼠肝脏氧化应激的缓解作用。[方法]采用乙醇提取法从菊苣种子中提取多糖,采用苯酚-硫酸法测定多糖,并测试DPPH自由基清除作用。采用四氧嘧啶复制小鼠Dm模型,取48只Dm小鼠随机分组为四氧嘧啶模型组(ALX)、盐酸二甲双胍阳性组(ALX+m)、菊苣多糖低剂量组(ALX+L)、菊苣多糖高剂量组(ALX+H),每组12只;另取12只健康小鼠作为正常对照组(NC);每日灌胃给药1次,连续给药15 d。末次给药后,采集血清测定谷丙转氨酶(ALT)、谷草转氨酶(AST)、血糖、肌酐以及小鼠肝组织氧化应激指标丙二醛(mDA)、超氧化物歧化酶(SOD)、谷胱甘肽(GSH)、过氧化氢酶(CAT),观察小鼠肝、肾、胰腺、睾丸等组织病理变化。[结果]菊苣种子多糖提取率为39%,具有一定的清除DPPH自由基作用;四氧嘧啶能引起小鼠血清ALT、AST、血糖、肌酐指标上升(P<0.01),肝脏、肾脏组织发生肝细胞排列紊乱、肝小叶结构破坏、肾小球萎缩、间质增大等病理变化。菊苣多糖高剂量组(ALX+H)具有明显改善小鼠体重、脏器指数,缓解肝组织GSH、SOD、CAT水平(P<0.05),明显改善肝组织形态结构,睾丸组织病理学变化趋向NC组。[结论]菊苣多糖具有一定的抗氧化应激作用。

关键词：菊苣多糖四氧嘧啶糖尿病抗氧化应激

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区域分裂并行计算中预条件迭代若干性质

武汉理工大学学报（交通科学与工程版） 2001年第2期25卷 118-120页

作者：卫加宁章社生 yakup Paker 武汉理工大学理学院武汉430063 Queen mary&West Field College University of London

对网格方程组作区域分裂并行计算 ,讨论了预条件迭代的相关性质及其对算法收敛性的影响 ,给出两层分块预条件迭代收敛的充要条件 ,指出消元预条件迭代在谱条件意义下具最优收敛率 .在对称正定情形下 ,通过消元预条件揭示了预处理的内在... 详细信息

对网格方程组作区域分裂并行计算 ,讨论了预条件迭代的相关性质及其对算法收敛性的影响 ,给出两层分块预条件迭代收敛的充要条件 ,指出消元预条件迭代在谱条件意义下具最优收敛率 .在对称正定情形下 ,通过消元预条件揭示了预处理的内在结构 ,为构造预处理方法提供了理论依据 .对于区域分裂 D-N算法 ,讨论了构造较优预处理的方法 .

关键词：区域分裂并行算法预条件迭代性质收敛性分析