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Earthquake Engineering and Engineering Vibration 2024年第2期23卷 345-358页

作者： zan zhou Thomas Man-Hoi Lok Wan-Huan zhou Department of Civil and Environmental Engineering Faculty of Science and TechnologyUniversity of MacaoMacaoChina

Surface wave inversion is a key step in the application of surface waves to soil velocity ***,a common practice for the process of inversion is that the number of soil layers is assumed to be known before using heuristic search algorithms to compute the shear wave velocity profile or the number of soil layers is considered as an optimization ***,an improper selection of the number of layers may lead to an incorrect shear wave velocity *** this study,a deep learning and genetic algorithm hybrid learning procedure is proposed to perform the surface wave inversion without the need to assume the number of soil ***,a deep neural network is adapted to learn from a large number of synthetic dispersion curves for inferring the layer ***,the shear-wave velocity profile is determined by a genetic algorithm with the known layer *** applying this procedure to both simulated and real-world cases,the results indicate that the proposed method is reliable and efficient for surface wave inversion.

关键词： surface wave inversion analysis shear-wave velocity profile deep neural network genetic algorithm

Full Characterization of the Work-Hardening Behavior of Metals:An Accurate and Explicit Approach

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Acta Mechanica Solida Sinica 2020年第4期33卷 479-486页

作者： zan zhou Siyu Wang Lin Zhan Huifeng Xi Heng Xiao School of Mechanics and Construction Engineering and MOE Key Lab of Disaster Forecast and Control in Engineering Jinan UniversityGuangzhou 510632China Shanghai Institute of Applied Mathematics and Mechanics&School of Mechanics and Engineering Science Shanghai UniversityShanghai 200072China

A new approach is proposed to characterize the work-hardening behavior of metals based on the stress-strain data from uniaxial extension *** this new approach,the yield strength as a function of the plastic work can be determined by directly fitting a wellchosen single-variable shape function to any given uniaxial data from the initial yielding up to the strength limit,in an explicit sense with no need to carry out the usual tedious trial-and-error procedures in treating nonlinear elastoplastic rate equations toward identifying numerous unknown *** examples show that the simulation results with the new approach are in accurate agreement with the test data.

关键词： Metals Elastoplasticity Finite strain Work-hardening Yield strength Strength limit Explicit characterization

Intrathecal administration of resiniferatoxin produces analgesia against prostatodynia in rats

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Chinese Medical Journal 2007年第18期120卷 1616-1621页

作者： TANG Wei SONG Bo zhou zan-song LU Gen-sheng Urological Research Institute of PLA Southwest Hospital ThirdMilitary Medical University Chongqing 400038 China

Background Prostatodynia remains a difficult clinical problem. Resiniferatoxin （RTX）, an ultrapotent vanilloid, can produce a selective and long-lasting desensitization of nociception via C-fiber sensory neurons. Substance P （SP） and calcitonin gene-related peptide （CGRP） released from C-fibers are key neurotransmitters in visceral pain. In this study, we evaluated the analgesic effect of intrathecal RTX on rat prostatodynia. Methods Male Sprague-Dawley rats were divided into 3 groups for different treatment. In group A, sham operation was preformed. In group B, 100 μl complete Freund＇s adjuvant （CFA） was injected into the rat＇s bilateral ventral prostate to induce chronic inflammation. In group C, after prostatitis formed, 50 μl 10 nmol/L RTX was injected into the rat＇s lumbosacral （L5-S2） vertebral canal. SP and CGRP contents in the spinal cord were investigated by immunohistochemistry and radioimmunoassay （RIA）. Their transcriptional levels in dorsal root ganglion （DRG） were determined by reverse transcriptase polymerase chain reaction （RT-PCR）. In addition, pelvic nerve afferent discharge was recorded to explore the neuro-electrophysiological mechanisms underlying RTX-induced effect. Results SP and CGRP released in the spinal cord and their synthesis in DRG were increased significantly in response to CFA-induced chronic prostatitis, whereas this increase was effectively inhibited by intrathecal RTX. Meanwhile, pelvic nerve afferent electrical activity was enhanced significantly in rats with chronic prostatitis, but it was attenuated markedly in RTX-treated rats paralleled by the change of neuropeptides. Conclusions Intrathecal RTX administration could produce an analgesic effect on rat prostatodynia. Suppression of pelvic nerve afferent electrical activity may be a crucial mechanism underlying RTX-induced analgesia. RTX intrathecal application may present a novel analgesic strategy of prostatodynia.

关键词： prostatitis analgesia resiniferatoxin neuropeptides electrophysiology

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新世纪诗歌场域、作者身份与当代性呈现

中国文学批评 2024年第4期40卷 177-186,190页

作者：周瓒中国社会科学院文学研究所北京100732

近年来,当代诗歌现场暗流涌动,第八届鲁迅文学奖重释了既有的诗群概念,“知识分子写作”与“民间写作”的区分不复有效,有关“未来诗学”的论争重申了“90年代诗歌”呈现与遗留的诗学问题。当前,互联网平台已然成为当代诗歌发生与传播... 详细信息

近年来,当代诗歌现场暗流涌动,第八届鲁迅文学奖重释了既有的诗群概念,“知识分子写作”与“民间写作”的区分不复有效,有关“未来诗学”的论争重申了“90年代诗歌”呈现与遗留的诗学问题。当前,互联网平台已然成为当代诗歌发生与传播的主要空间,诗人群体则因观念的分歧和写作面貌的差异而不断分化、重组。线上诗歌热点频现,线下的诗歌市场总体显得低迷,而诗歌出版却处于升温状态。这一切敦促我们从诗歌场域和诗人身份出发,考察与思考当代诗的“当代性”。具体而言,当代诗歌的显著趋向表现为民生关切、传统重塑、跨界行动、文体自觉等,而所面临的挑战又体现在新媒介语境下对诗人创造活力的考验、诗歌批评的滞后以及新科技激发的创造可能性等方面。

关键词：场域身份民生关切传统重塑跨界当代性

Effect of shenfu injection on gastrointestinal microcirculation in rabbits after myocardial ischemia-reperfusion injury

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World Journal of Gastroenterology 2006年第27期12卷 4389-4391页

作者： Xue-Juan Zhang Li Song zan-Gong zhou Xiu-Mei Wang Department of Cardiology Affiliated Hospital of Qingdao Medical University Qingdao 266003 Shandong Province China

AIM： To investigate the effect of shenfu injection on gastrointestinal microcirculation after myocardial ischemic-reperfusion （IR） injury in rabbits and probe into the mechanism. METHODS： Forty healthy flap-eared white rabbits were randomly divided into 4 groups： IR injury control group （group Ⅰ ）, shenfu injection 5 mL/kg per h group （group Ⅱ）, shenfu injection 10 mL/kg per h group （group Ⅲ） and shenfu injection 20 mL/kg per h group （group Ⅳ）. The four groups were treated with Lactated Ringer＇s solution, shenfu injection 5, 10, and 20 mL/ kg per h were infused intravenously 30 min before experiment respectively. The values of hemodynamics [mean arterial pressure （MAP）, heart rate （HR）, gastric intramucosal partial pressure of carbon dioxide （PCO2）, blood gas analysis and pH] were measured and compared with those before myocardial ischemia, 60 min after myocardial ischemia and 60, 90, and 180 rain after reperfusion. RESULTS： The MAP, HR and gastric intramucosal pH were （70.50 ± 4.50） kPa, （165 ± 14） beats per rain, 7.032 ± 0.024 in group Ⅰ 60 min after myocardial ischemia, which were significantly decreased compared with those before myocardial ischemia （88.50 ± 9.75 kPa, 217 ± 18 beats per rain, 7.112 ± 0.035, P 〈 0.05）. The MAP, HR and gastric intramucosal pH were significantly decreased in group Ⅰ 60, 90, and 180 min after reperfusion （61.50 ± 5.25 kPa, 133 ± 31 beats per rain, 6.997 ± 0.025） compared with those before reperfusion respectively （P 〈 0.05）, whereas the values were insignificantly different in groups Ⅱ, Ⅲ or Ⅳ after reperfusion, compared with those before reperfusion, and there were no significant differences between groups Ⅱ, Ⅲ, and Ⅳ after reperfusion. CONCLUSION： Pre-infusion of shenfu injection has a protective effect on gastrointestinal microcirculation after myocardial IR injury in rabbits, in a dose independent manner.

关键词： Shenfu injection Myocardial ischemicreperfusion injury Gastrointestinal microcirculation

用铅笔写诗,用钢笔写评论——论批评家、诗人臧棣

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南方文坛 2005年第2期 9-12页

作者：周瓒中国社科院文学所

悉心研读臧棣的诗文,我很难做到不被他的言语风格吸引,并怀着无比的好奇与兴奋继续我的阅读.和茨维坦·托多洛夫在谈论布朗肖时所发出的喟叹很类似(虽然并非总是如此),--他说:"任何用布朗肖以外的另一种语言解释其作品的企图,似乎都遭... 详细信息

悉心研读臧棣的诗文,我很难做到不被他的言语风格吸引,并怀着无比的好奇与兴奋继续我的阅读.和茨维坦·托多洛夫在谈论布朗肖时所发出的喟叹很类似(虽然并非总是如此),--他说:"任何用布朗肖以外的另一种语言解释其作品的企图,似乎都遭到无言的阻拦,人们几乎只能在默默地欣赏(惊愕)和摹仿(改写、抄袭)之间进行选择"①,在准备对诗人臧棣所作的评论工作进行一番考察时,我也强烈地感受到一种"在默默地欣赏(惊愕)和摹仿(改写、抄袭)之间进行选择"的引力.当然,这也同时激发了我试图摆脱和疏离这种引力的意识和实践兴致.

关键词：臧棣洛夫批评家诗人写诗诗文抄袭阅读研读好奇

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中国三大医学系列期刊影响力对比分析

中国科技期刊研究 2005年第6期16卷 850-852页

作者：袁桂清周赞中华医学会<中华检验医学杂志>编辑部北京东四西大街42号100710 中华医学会组织管理部北京东四西大街42号100710

根据不完全统计2003年《中国科技期刊引证报告》,比较了中华医学会系列杂志、中国医学系列杂志和高校医药学报系列各55种医学杂志的影响指标,其平均影响因子分别为0.740、0.415和0.154。影响因子在0.50以上的期刊分别为87.3%、29.1%和1... 详细信息

根据不完全统计2003年《中国科技期刊引证报告》,比较了中华医学会系列杂志、中国医学系列杂志和高校医药学报系列各55种医学杂志的影响指标,其平均影响因子分别为0.740、0.415和0.154。影响因子在0.50以上的期刊分别为87.3%、29.1%和1.8%。从影响因子、总被引频次等指标比较看,中华医学会系列杂志在我国医药卫生期刊中具有比较大的影响力,是我国重要的医学核心期刊群。

关键词：医学期刊系列影响力《中国科技期刊引证报告》中华医学会系列杂志期刊影响力医药卫生期刊比分影响因子总被引频次影响指标医学杂志

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论医学期刊的系统设计

编辑学报 2005年第2期17卷 126-128页

作者：袁桂清周赞中华检验医学杂志编辑部中华医学会组织部北京100710

论述医学期刊系统设计的概念、内容、要点等。医学期刊系统设计的内容有 :办刊方针设计 ,办刊宗旨设计 ,导向设计 ,内容设计 ,版式与装帧设计 ,经营设计 ,栏目设计等。医学期刊系统设计的要点有 :前瞻性 ,全面性 ,可操作性 ,独创性 ,时... 详细信息

论述医学期刊系统设计的概念、内容、要点等。医学期刊系统设计的内容有 :办刊方针设计 ,办刊宗旨设计 ,导向设计 ,内容设计 ,版式与装帧设计 ,经营设计 ,栏目设计等。医学期刊系统设计的要点有 :前瞻性 ,全面性 ,可操作性 ,独创性 ,时机性 ,相关性 ,环境适应性。

关键词：医学期刊系统设计学术导向内容设计栏目设计

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我国医学高层学术带头人现状研究

中华医院管理杂志 1995年第7期11卷 385-387页

作者：袁桂清周赞北京市中华医学会

为了适应医学科学的发展，摸清我国高层学术带头人的现状，我们选取中华医学会学术带头人为研究对象，统计了８０个专科学会的２７０８名学术带头人的基本情况，采用统计学、人才学、软科学的研究方法进行研究，从而发现了两个人才断裂... 详细信息

为了适应医学科学的发展，摸清我国高层学术带头人的现状，我们选取中华医学会学术带头人为研究对象，统计了８０个专科学会的２７０８名学术带头人的基本情况，采用统计学、人才学、软科学的研究方法进行研究，从而发现了两个人才断裂带、代际转换高峰过于集中、负担过重、整体素质参差不齐等问题，提出了解决这些问题的战略方针及促进人才回流与成长的对策。

关键词：学术带头人中华医学会医学科学高层人才回流学科带头人代际转换软科学科学指挥学社会科学现代医学学会委员断裂带断层带构造带

“乐感”与“罪感”的文化比较分析——以中西方突发公共卫生事件题材电影为例

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电影艺术 2020年第3期 56-61页

作者：王冬冬周赞同济大学艺术与传媒学院

中西方文化的不同造成了以突发公共卫生事件为题材的电影在艺术表现形式和风格系统上的差异,这类影片通过对中西方文化心理的内核不断进行再生产的策略,形成了两种风格迥异的叙事文本。本文将"乐感文化"和"罪感文化"来作为中西方文化特... 详细信息

中西方文化的不同造成了以突发公共卫生事件为题材的电影在艺术表现形式和风格系统上的差异,这类影片通过对中西方文化心理的内核不断进行再生产的策略,形成了两种风格迥异的叙事文本。本文将"乐感文化"和"罪感文化"来作为中西方文化特征的概括,从文化心理学的理论视点出发,通过比较主题、结构和影像本体层面的叙事策略特征,从差异中归纳总结中外突发公共卫生事件题材电影的创作经验,探索该类国产电影作品如何在类型化与意义表达之间取得平衡。

关键词：突发公共卫生事件灾难电影乐感文化罪感文化