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Research on Bulbous Bow Optimization Based on the Improved PSO Algorithm

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China Ocean Engineering 2017年第4期31卷 487-494页

作者： zhang sheng-long zhang Bao-ji Tahsin TEZDOGAN XU Le-ping LAI Yu-yang Merchant Marine College Shanghai Maritime University Shanghai 201306 China College of Ocean Environment and Engineering Shanghai Maritime University Shanghai 201306 China Department of Naval Architecture & Ocean and Marine Engineering University of Strathclyde Glasgow G4 0LZ UK Beijing Soyotec Co. Ltd. Beijing 100062 China

In order to reduce the total resistance of a hull, an optimization framework for the bulbous bow optimization was presented. The total resistance in calm water was selected as the objective function, and the overset mesh technique was used for mesh generation. RANS method was used to calculate the total resistance of the hull. In order to improve the efficiency and smoothness of the geometric reconstruction, the arbitrary shape deformation （ASD） technique was introduced to change the shape of the bulbous bow. To improve the global search ability of the particle swarm optimization （PSO） algorithm, an improved particle swarm optimization （IPSO） algorithm was proposed to set up the optimization model. After a series of optimization analyses, the optimal hull form was found. It can be concluded that the simulation based design framework built in this paper is a promising method for bulbous bow optimization.

关键词： bulbous bow overset mesh RANS method ASD technique IPSO algorithm

A New Method for the Synthesis of Ketone Diperoxide

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Chemical Research in Chinese Universities 1999年第4期15卷 329-332页

作者： XU Wei liang CHEN You fang zhang sheng long Section of Orgainc Chemistry Zhejiang Agricultural UniversityHangzhou 310029P.R.China

A general method for the synthesis of ketone diperoxides and their structure information is reported. The highest yield of the title compound is 91 5%.

关键词： Structure Synthesis Ketone diperoxide

A validation safety pharmacology study of the central nervous system,employing a functional observational battery in female cynomolgus monkey

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中国药理学与毒理学杂志 2013年第3期 579-580页

作者： HU Li-ping ZHENG Wei-jun zhang long-sheng CHEN Xiao-qiang LI Liang-shun LI Ming YU Hong REN Jin Centre for Drug Safety Evaluation and Research Shanghai Institute of Materia Medica

The objective of this study was to establish and validate a functional observational battery(FOB) at the Center for Drug Safety Evaluation & Research(CDSER) that provides a basic neurological and behavioral assessment in cynomolgus *** female cynomolgus monkeys were assigned to this study and were administered the vehicle and substances〔chlorpromazine,(+)-MK-801 or caffeine〕in 4 separated days(a 7-d wash-out period between each drug treatment).On each dosing day,4 animals were staggered for dosing.A FOB was performed and recorded by two independent observers for each animal at designated time *** between two observers were evaluated and actions were taken to minimize the subjective *** administration of 5 mg·kg-1 chlorpromazine resulted in sedative effect between 0.5 and 3 h post dose and decreased body temperature at 1 h post *** administration of(+) MK-801(0.1,0.5,1.25 and 2.5 mg·kg-1) resulted in suppressed behavior(low arousal,infrequent vocalization,hypoactive,etc),autonomic responses(salivation,decreased respiration and rectal temperature,etc) and sensorimotor / neuromuscular alternations(unsteady,un-coordinated,lack of auditory response,tremor and convulsion,etc) at all doses,and monkeys becoming unconscious and /or pupil dilation at high dose levels(1.25 and 2.5 mg·kg-1).The observations were mainly recorded between 0.5 and 3 h post *** resulted in stimulant behavioral changes(high arousal,hyperactivity and /or intermittent circling behavior) in one monkey at a dose of 30 mg·kg-1(between 0.5 and 4.5 h post dose) or one of two monkeys at a dose of 45 mg·kg-1(between 0.5 and 1 h post dose).At higher doses(one monkey dosed at 45 mg·kg-1 and one at 60 mg·kg-1),caffeine resulted in decreased arousal and hypoactive between 0.5 and 3 h post *** alteration caused by caffeine was evidenced by vomiting /retching seen in the 45 mg·kg-1 monkey at 0.5 h post dose and in the 60 mg·kg-1 monkey between 0.5 and 3 h pos

关键词： saftey evaluation pharmacology monkey

西准噶尔玉依塔勒盆克提斑岩体中石榴子石的发现及地质意义

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矿物岩石地球化学通报 2015年第6期34卷 1254-1261页

作者：王冉张胜龙长安大学地球科学与资源学院西部矿产资源与地质工程教育部重点实验室西安710054

为探讨位于新疆玉依塔勒盆克提一带的石榴子石花岗斑岩中石榴子石的成因类型,结合野外地质、岩相学、矿物学研究,分析了石榴子石的端元组分。结果表明,该区石榴子石为自形晶体,呈斑晶分布于整个花岗斑岩中,而非岩体边部,为岩浆结晶石榴... 详细信息

为探讨位于新疆玉依塔勒盆克提一带的石榴子石花岗斑岩中石榴子石的成因类型,结合野外地质、岩相学、矿物学研究,分析了石榴子石的端元组分。结果表明,该区石榴子石为自形晶体,呈斑晶分布于整个花岗斑岩中,而非岩体边部,为岩浆结晶石榴子石,其中含有大量早期晶出的磷灰石。电子探针分析表明,石榴子石具有高铁、相对富钙而贫锰、镁特征。计算的主要端元组分为：铁铝榴石（62.36%~74.76%mol）,钙铝榴石（10.90%~15.56%mol）,镁铝榴石（6.78%~16.43%mol）,锰铝榴石（4.08%~6.91%mol）。综合区域岩浆活动和构造发展演化阶段的研究成果认为,该花岗岩的形成可能与俯冲作用有关。

关键词：石榴子石花岗岩矿物化学玉依塔勒盆克提西准噶尔

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一类三元素数字集的平面自仿测度的非谱性质

山东大学学报（理学版） 2011年第2期46卷 5-8页

作者：张陇生陕西师范大学数学与信息科学学院陕西西安710062

借助模3的剩余类,利用矩阵算子M*作用在零点集Z0和Z槇0上的周期性,讨论了由矩阵M=a b(0c)(a,b,c∈Z,|a|>1,|c|>1,ac3Z)和数字集D=()00{,(10),(0l)}(l∈Z\{0,1})所决定的L2(μM,D)空间中正交指数函数的最大个数。

关键词：自仿测度谱测度 Fourier变换仿射迭代函数系

基于多体动力学的车辆悬架控制臂载荷谱混合分布外推研究

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中国公路学报 2020年第7期33卷 186-196页

作者：董国疆杜飞王威张龙升燕山大学河北省特种运载装备重点实验室河北秦皇岛066004

试验场强化路载荷谱外推全寿命载荷谱是汽车构件疲劳耐久性能评判准确性的关键因素,针对参数法外推单分布估计的局限性,引入混合分布估计描述载荷谱多峰或复杂分布的综合特征。基于试验场强化路实车测试,应用多体动力学与有限元联合仿真... 详细信息

试验场强化路载荷谱外推全寿命载荷谱是汽车构件疲劳耐久性能评判准确性的关键因素,针对参数法外推单分布估计的局限性,引入混合分布估计描述载荷谱多峰或复杂分布的综合特征。基于试验场强化路实车测试,应用多体动力学与有限元联合仿真,提取控制臂危险点应力谱;分别应用单分布和混合分布法解算应力谱拟合优度,以此为据选取应力谱最优均值、幅值概率密度并将应力谱循环外推至106次,应用FKM平均应力修正法编制8级应力谱,依据Miner准则分别从载荷幅值分布、损伤分布以及总损伤量等方面对单分布与混合分布外推应力谱进行综合分析。研究结果表明:应用拟合优度能较好评估两分布对应力谱均、幅值拟合程度,混合分布拟合效果优于单分布,拟合优度均为98%,对应力谱分布特征描述更为精确,可为外推提供较真实的载荷分布概率密度,从而提高外推载荷谱精度;比较应用2种分布拟合的外推载荷谱,损伤分布趋势相近,中级载荷损伤占比高,单分布外推载荷谱总损伤量为6.3×10-4,大于混合分布外推载荷谱总损伤为5×10-4,寿命预测偏于保守,导致耐久性设计裕度较大,应用混合分布外推能提高耐久性评估与轻量化设计精度。

关键词：汽车工程载荷谱外推混合分布估计多体动力学仿真疲劳损伤

New advance in oceanic island basalts of ophiolitic mélange from the West Junggar and implications for tectonic evolution of the Central Asian Orogenic Belt

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New advance in oceanic island basalts of ophiolitic mélange...

湖北省大型灌区“十二五”信息化建设对策研究

2014年中国地球科学联合学术年会——专题45：中亚-兴蒙造山带

作者： YANG Gao-Xue LI Yong-Jun TONG Li-Li YANG Bao-Kai zhang sheng-long Earth Science & Resources College of Chang′an University

Origin study of ocean island basalts(OIB)is one of fundamental issues in petrology and geochemistry of solid Earth at present,usually it was considered driving from the plume(Williams and Garnero,1996).Wilson(1963)first suggested that the Hawaiian Chain of Islands was produced by oceanic lithosphere moving over a stationary‘hot spot’in the mantle,and Morgan(1971)first suggested the existence of plumes in the Earth’s *** of the key rocks to test the role of plumes is alkaline basalts provide significant information on mantle magma sources and geodynamic *** Central Asian Orogenic Belt(CAOB)is situated among the Siberia,East European,Tarim and North

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湖北农业科学 2012年第16期51卷 3622-3625页

作者：龙立华龙帆龙章胜龙振华湖北水利水电职业技术学院武汉430070 三峡大学科技学院湖北宜昌443002 贵州大学明德学院机电工程系贵阳550004

在认真总结湖北省"十一五"大型灌区建设成绩的同时,指出了存在的不足。综合湖北省32个大型灌区的实际情况,提出了"十二五"大型灌区信息化建设的对策,为今后一段时间内大型灌区的信息化工作指明了方向。

关键词：大型灌区信息化建设发展对策湖北省

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《职称英语(综合类)》参考译文评析

广州大学学报（社会科学版） 2002年第10期1卷 61-66页

作者：张盛龙广州大学外国语学院广东广州510405

本文将《职称英语 (综合类 )》一书《参考译文》中一些典型的错误译例归纳为单词词义、词组意义、语法结构、逻辑连贯、背景知识和行文增删六个方面的问题。

关键词：英语翻译英语教材