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Research on welding deformation control technology of battery electric vehicle framed aluminum body

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Progress in Natural Science:Materials International 2024年第1期34卷 108-121页

作者： Bo Liu Jian Yang Jia Li xiaolin liao Qin Yang Jinsheng Zhang Tiegang Hu Shuxun Jiang School of Mechanical Engineering University of Science and Technology Beijing Chongqing Industry Polytechnic College Global R&D Center Chongqing Changan Automobile Co. Ltd Farizon New Energy Commercial Vehicle Group

The welding process of aluminum(Al) alloy car body has problems such as poor weld quality, low welding co-efficient, and large welding deformation. This paper mainly focuses on material accuracy design, lap structure design, simulation, and process manufacturing to break through the precision control problems caused by welding deformation of battery electric vehicle Al alloy car body. First, the 209 key functional dimensional chains of Al body-in-white are analyzed and decomposed to component and profile tolerance dimensions step by ***, the differences of vertical butt, bevel butt, and plug structures are studied and joint matching is implemented in a targeted manner. Subsequently, through welding deformation simulation analysis and welding sequence optimization, the body-in-white welding process and tooling fixtures are guided and designed to ensure that the dimensional accuracy of the Al body is controlled to ±2 mm in all aspects. Finally, the design of the whole vehicle arrangement of mechanical, human-machine, and major components is carried out, and an all-Al framed battery electric vehicle lightweight platform with different sizes and ranges is innovatively created. The difficulties such as the contradiction between power battery size and arrangement space, unreasonable arrangement position, and load distribution are solved.

关键词： Aluminum alloy Frame structure Welding deformation simulation Dimensional accuracy control Battery electric vehicle lightweight platform

Whole-cell recording of the robust nucleus of the arcopallium neurons in the adult zebra finch

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Neural Regeneration Research 2009年第8期4卷 623-628页

作者： Suqun liao xiaolin Liu Dongfeng Li College of Life Sciences South China Normal University Guangzhou 510631 Guangdong Province China

BACKGROUND： Electrophysiological properties of the song nucleus have been revealed using conventional techniques, such as intracellular and extracellular recording. Research concerning the neuronal activation properties and regulations of the song system at the cellular and ion channel level may help reveal the neural mechanism of song learning. OBJECTIVE： To perform whole-cell recording of robust nucleus of the arcopallium （RA） neurons in brain slices from adult zebra finches （Taeniopygia guttata） and observe the action potential, sodium/potassium current and the spontaneous postsynaptic current of RA neurons. DESIGN, TIME AND SETTING： Self-controlled, neuroelectrophysiological experiment. The study was performed at the Neurophysiology Laboratory of South China Normal University from April to September 2008. MATERIALS： Flaming/Brown puller P-97 was purchased from Sutter Ins, USA; Axopatch 700B amplifier and Digidata 1332A converter were purchased from Axon Instrument, USA; pClamp software was provided by Axon Instrument, USA. METHODS： RA neurons were acutely isolated from 24 healthy male zebra finches. The action potential, voltage-gate sodium/potassium current and spontaneous postsynaptic current were recorded by whole-cell recording technology. Data were analyzed by pClamp software. MAIN OUTCOME MEASURES： The amplitude and frequency of the action potential, and the amplitude of the voltage-dependent and spontaneous postsynaptic currents, were measured. RESULTS：（1） Testing of action potential： Cells exhibited a stable current-voltage relationship following a series of hyperpolarization stepped currents, and an action potential was triggered by the spike threshold. All the recorded cells displayed repetitive firing following depolarizing current injection, with a frequency beyond 100 Hz. （2） Testing of voltage-gate currents： The inward and outward whole-cell currents were observed after a series of depolarizing voltage steps. The inward current disappeared followi

关键词： adult zebra finch robust nucleus of the arcopallium whole-cell recording

Clinical Thoughts and Cases of Jianpi Yishen Sechang Decoction Combined with Acupuncture in the Treatment of Functional Diarrhea

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Journal of Clinical and Nursing Research 2024年第7期8卷 167-172页

作者： Yang Luo Wei Liu Yuxi He xiaolin liao Chongqing Hospital of Traditional Chinese Medicine Chongqing 400021China

Functional diarrhea(FDr)accounts for a relatively high proportion of digestive *** is an infection that is not accompanied by abdominal pain and shows negative results in laboratory tests for bacteria and *** main symptoms are persistent or recurrent discharge of watery and soft *** course of the disease is prolonged and recurring,and the treatment cost is higher and greatly affects the patient’s daily *** incidence rate has a gradual increase in the *** pathogenesis is complex where Western medicine is mostly used in symptomatic drug *** treatment can be fast-acting and effective in relieving ***,the long-term use of Western medicine poses a high risk in terms of side effects and a high chance of recurring upon stopping *** the same time,some diarrhea patients show the existence of drug-resistant strains of bacteria,and the overall efficacy of the drug is *** medicine is mild and able to provide excellent treatment of *** its lower price and cost,most families can afford *** Tian,director of traditional Chinese medicine,implemented the“needle and medicine”method,which combines medicine and acupuncture,involving the usage of Jianpi Yishen Sechang Decoction and acupuncture in the treatment of functional *** method has a low price,fewer side effects,is easy to accept,and can significantly reduce the recurrence rate with high *** study would like to share the clinical thinking and cases as follows to provide ideas and methods for the treatment of functional diarrhea by traditional Chinese medicine.

关键词： Functional diarrhea Jianpi Yishen Sechang Decoction Acupuncture Experimental cases

Construction of a microsatellite-based genetic linkage map for half-smooth tongue sole Cynoglossus semilaevis

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Current Zoology 2013年第1期59卷 99-108页

作者： Wentao SONG Guidong MIAO Yongwei ZHAO Yuze NIU Renyi PANG xiaolin liao Changwei SHAO Songlin CHEN Yellow Sea Fisheries Research Institute Chinese Academy of Fishery Sciences Qingdao 266071 China College of Fisheries and Life Science Shanghai Ocean University Shanghai 201306 China

The half-smooth tongue sole Cynoglossus semilaevis is an important cultured marine fish and a promising model fish for the study of sex determination. Sex-specific genetic linkage maps of half-smooth tongue sole were developed with 567 mark- ers （565 microsatellite markers and two SCAR markers）. The parents and F1 progeny （92 individuals） were used as segregating populations. The female map was composed of 480 markers in 21 linkage groups, covering a total of 1388.1 cM, with an average interval 3.06 cM between markers. The male map consisted of 417 markers in 21 linkage groups, spanning 1480.9 cM, with an average interval of 3.75 cM. The female and male maps had 474 and 416 unique positions, respectively. The genome length of half-smooth tongue sole was estimated to be 1522.9 cM for females and 1649.1cM for males. Based on estimations of map length, the female and male maps covered 91.1% and 89.8% of the genome, respectively. Furthermore, two female-specific SCAR mark- ers, f-382 and f-783, were mapped on LG15f （linkage group 15 in female maps）. The present study presents a mid-density genetic linkage map for half-smooth tongue sole. These improved genetic linkage maps may facilitate systematic genome searches to identify quantitative trait loci （QTL）, such as disease resistance, growth and sex-related traits, and are very useful for marker-assisted selection breeding programs for economically important traits in half-smooth tongue sole [Current Zoology 59 （1）： 99-108, 2013].

关键词： Half-smooth tongue sole Cynoglossus semilaevis Microsatellite Genetic linkage map MAS

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市场营销专业课程考核改革的探索

广西商业高等专科学校学报 2003年第4期20卷 66-67页

作者：廖小林广西商业高等专科学校南宁530003

为了适应市场营销专业学生的培养目标 ,需要教师特别是专业课教师 ,在从事教学过程中 ,加强学生动手能力的培养 ,并针对不同年级的学生采用不同教学和考核方法。

关键词：市场营销专业考核方式实践能力专业课程案例教学法评定标准考试

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高水平运动队的构建与管理初探

体育科技 2004年第4期25卷 53-56页

作者：廖小林湖南工业大学体育部株洲412008

针对我校高水平运动队的构建与管理现状 ,边分析问题 ,边解决问题 ,提出建议和举措 ,旨在使我校的运动队水平更上新台阶。

关键词：高校高水平运动队运动员选材经济基础人本原则项群管理

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普通高校篮球选修课教学模式设想

体育科技 2002年第4期23卷 73-74页

作者：廖小林湖南株洲工学院体育部株洲412008

构建一种具有现代教育气息的、科学性程度高的普通高校篮球选修课教学模式 ,是普通高校体育选修课目前面临解决的问题之一。

关键词：普通高校教学模式篮球选修课

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论青少年篮球运动员快速力量训练原则

体育科技 2001年第4期22卷 38-40页

作者：廖小林株洲工学院体育部株州412000

借鉴运动训练学、运动生物化学、运动生物力学等基本理论 ,运用篮球运动训练理论 ,结合多年从事青少年篮球运动训练的实践经验 ,论述了快速力量训练过程中应遵循的六条基本原则。

关键词：青少年篮球运动员快速力量训练方法训练负荷

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中华鲟物种保护研究

人民长江 2017年第11期48卷 16-20,35页

作者：廖小林朱滨常剑波水利部中国科学院水工程生态研究所水利部水工程生态效应与生态修复重点实验室湖北武汉430079 水资源安全保障湖北省协同创新中心湖北武汉430072

中华鲟(Acipenser sinensis Gray,1835)是一种大型溯河洄游鱼类,国家一级重点保护野生动物,目前仅在长江繁殖,是长江的旗舰保护物种。参考近年国内外相关的研究成果,对中华鲟在长江的生长繁育状态进行了研究,发现近年来,进入长江繁殖的... 详细信息

中华鲟(Acipenser sinensis Gray,1835)是一种大型溯河洄游鱼类,国家一级重点保护野生动物,目前仅在长江繁殖,是长江的旗舰保护物种。参考近年国内外相关的研究成果,对中华鲟在长江的生长繁育状态进行了研究,发现近年来,进入长江繁殖的中华鲟亲鱼仅百尾左右,2013~2015年连续3 a未在葛洲坝下游中华鲟产卵场监测到中华鲟的自然繁殖,中华鲟面临新的生存危机。为了有效地保护中华鲟,近20 a来,国内许多学者在中华鲟自然繁殖的水文需求与栖息地特征研究、自然繁殖监测、全人工繁殖与苗种培育、增殖放流与放流效果评价、分子生态学研究等方面开展了大量工作,基本突破了中华鲟物种保护的瓶颈。通过对目前中华鲟保护的研究成果分析,指出了今后中华鲟物种保护的重点研究方向。

关键词：中华鲟自然产卵全人工繁殖研究进展长江