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Estimation of Natural Mortality Coefficient from Fish Abundance and catch Data Using Virtual Population Analysis(VPA)

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Journal of Ocean University of China 2007年第1期6卷 53-59页

作者： WANG Yingbin LIU Qun WANG Yanjun College of Fisheries Ocean University of ChinaQingdao 266003P.R.China

Natural mortality coefficient (M) was estimated from fish abundance (N) and catch (C) data using a Virtual Population Analysis (VPA) model. Monte Carlo simulations were used to evaluate the impact of different error distributions for the simulated data on the estimates of M. Among the four error structures (normal, lognormal, Poisson and gamma), simulations of normally dis-tributed errors produced the most viable estimates for M, with the lowest relative estimation errors (REEs) and median mean absolute deviations (MADs) for the ratio of the true to the estimated Ms. In contrast, the lognormal distribution had the largest REE value. Errors with different coefficients of variation (CV) were added to N and C. In general, when CVs in the data were less than 10%, reliable estimates of M were obtained. For normal and lognormal distributions, the estimates of M were more sensitive to the CVs in N than in C; when only C had error the estimates were close to the true. For Poisson and gamma distributions, opposite results were obtained. For instance, the estimates were more sensitive to the CVs in C than in N, with the largest REE from the scenario of error only in C. Two scenarios of high and low fishing mortality coefficient (F) were generated, and the simulation results showed that the method performed better for the scenario with low F. This method was also applied to the published data for the anchovy (Engraulis japonicus) of the Yellow Sea. Viable estimates of M were obtained for young groups, which may be explained by the fact that the great uncertainties in N and C observed for older Yellow Sea anchovy introduced large variation in the corresponding estimates of M.

关键词： natural mortality coefficient fish abundance catch data virtual population analysis

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Modern American Society—— An Absurd World Behind catch- 22

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内蒙古大学学报（哲学社会科学版） 2000年第S1期32卷 163-166页

作者：吴泽庆内蒙古大学外国语学院内蒙古呼和浩特010021

本文分别对约瑟夫·海勒的两部小说《第二十二条军规》和《出了毛病》的主人公约塞连和鲍勃·斯洛柯姆进行了分析 ,两人都生活在一个相互猜疑的社会里 ,他们无法摆脱社会对他们的控制。“军规”是一种高度的抽象和集中 ,象征着冥冥中统... 详细信息

本文分别对约瑟夫·海勒的两部小说《第二十二条军规》和《出了毛病》的主人公约塞连和鲍勃·斯洛柯姆进行了分析 ,两人都生活在一个相互猜疑的社会里 ,他们无法摆脱社会对他们的控制。“军规”是一种高度的抽象和集中 ,象征着冥冥中统治世界的力量 ;“某种毛病”的无处不在也反映了人们思想上的危机感 ,展示了充满愤怒和辛辣讽刺的“和平”美国景象。

关键词： catch absurd rationalzation paranoia

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Design Optimization of an Oil-Air catch Can Separation System

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Journal of Transportation Technologies 2015年第4期5卷 247-262页

作者： Anuar Abilgaziyev Nurbol Nogerbek Luis Rojas-Solórzano Department of Mechanical Engineering School of Engineering Nazarbayev University Astana Kazakhstan

The Positive Crankcase Ventilation (PCV) system in a car engine is designed to lower the pressure in the crankcase, which otherwise could lead to oil leaks and seal damage. The rotation of crankshaft in the crankcase causes the churn up of oil which conducts to occurrence of oil droplets which in turn may end in the PCV exhaust air intended to be re-injected in the engine admission. The oil catch can (OCC) is a device designed to trap these oil droplets, allowing the air to escape from the crankcase with the lowest content of oil as possible and thus, reducing the generation and emission of extra pollutants during the combustion of the air-fuel mixture. The main purpose of this paper is to optimize the design of a typical OCC used in many commercial cars by varying the length of its inner tube and the relative position of the outlet from radial to tangential fitting to the can body. For this purpose, CFD parametric analysis is performed to compute a one-way coupled Lagrangian-Eulerian two-phase flow simulation of the engine oil droplets driven by the air flow stream running through the device. The study was performed using the finite volume method with second-order spatial discretization scheme on governing equations in the Solid Works-EFD CFD platform. The turbulence was modelled using the k-? model with wall functions. Numerical results have proved that maximum efficiency is obtained for the longest inner tube and the tangential position of the outlet;however, it is recommended further investigation to assess the potential erosion on the bottom of the can under such a design configuration.

关键词： CFD Oil catch Can Positive Crankcase Ventilation Motor Oil Droplets Mesh Refinement Two-Phase Flow Lagrangian-Eulerian

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Phosphorylation Properties of the N-Terminal Region of Twitchin from Molluscan catch Muscle

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American Journal of Molecular Biology 2019年第3期9卷 110-120页

作者： Daisuke Funabara Yuuki Nishimura Satoshi Kanoh Graduate School of Bioresources Mie University Tsu Japan

Molluscan smooth muscles, such as the bivalve adductor muscles and the mussel anterior byssus retractor muscles (ABRM), exhibit a unique contraction called “catch”. catch contraction is regulated through twitchin phosphorylation and dephosphorylation. Twitchin from the ABRM of the Mediterranean mussel, Mytilus galloprovincialis, is phosphorylated by cAMP-dependent protein kinase (PKA), and PKA phosphorylation sites are located in both the N- and C-terminal regions of the twitchin molecule. The D2 site, which is adjacently located to the C-terminus, participates in forming a myosin, actin, and twitchin complex that is thought to contribute towards the maintenance of tension in the catch state. In contrast, although it has been reported to interact with thin-filaments, the molecular function of the region including the D1 site has remained largely unstudied. Three additional PKA consensus sequences were identified near the D1 site;however, it was not known if these sites could be directly phosphorylated by PKA. Here, we performed phosphorylation assays to identify phosphorylation sites near the D1 site using recombinant protein variants (TWD1-SSSS, TWD1-AAAS, TWD1-AASA, TWD1-ASAA, TWD1-SAAA, and TWD1-AAAA). All variants, except TWD1-AAAA (where all phosphorylatable serine residues were replaced by alanines), were phosphorylated by PKA. The four phosphorylation sites were named D1-1, D1-2, D1-3, and D1-4 (the originally identified D1) in order from the N-terminus. Phosphorylation assays using a 1/12.5 weight ratio of PKA to each TWD1 variant revealed that D1-4 was the most rapidly phosphorylated, closely followed by D1-1. However, D1-2 and D1-3 were phosphorylated at a lower level under equivalent conditions and were not phosphorylated when PKA was incubated with each TWD1 variant at a 1/100 weight ratio. Furthermore, we observed that TWD1-SSSS was phosphorylated in a stepwise fashion. These findings contribute towards the elucidation of the function of the twitchin D1

关键词： catch Contraction Phosphorylation Phos-Tag Gel Electrophoresis PKA Twitchin

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Domestication in the Translation of catch 22

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海外英语 2019年第19期 122-124页

作者：吴辉江苏师范大学

Domestication and foreignization are two frequently used translation ***,for the majority of transla?tors,the choice between them is still a problem till *** the one hand,it’s a good opportunity for target readers to learn more about foreign culture with the help of *** the other hand,domestication method can also contribute to the efficient transmission of *** translators pursue foreignization blindly,it will only lead to counterproductive ***?fore,in order to explore the vale of domestication method when translating,two major Chinese translations of catch 22 are cho?sen to make a comparative analysis from the lexical,phrasal,sentential *** result shows that the adoption of domestication method in translation is still of great significance.

关键词： domestication method foreignization method catch 22

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catch22综合征与精神障碍

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国外医学（精神病学分册） 2005年第1期32卷 32-36页

作者：钟慧李晓驷合肥市精神病医院安徽合肥230022

本文对 catch2 2综合征的含义、临床表现、发生机制、与精神障碍尤其是精神分裂症的关系以及相关神经影像学研究的进展等做一介绍。

关键词： catch 22综合征 22q11 精神障碍精神分裂症

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catch 22问题及其解决方案

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信息安全与通信保密 1999年第2期21卷 1-3,17页

作者：曾贵华王新梅西安电子科技大学综合业务网理论与关健技术国家重点实验室西安710071

研究了密码学中的catch22问题及其经典和量子密码解决方案,特别研究了量子密码解决方案。研究表明:经典密码学不能完全解决catch 22问题,而建立在量子力学基础上的量子密码学能提供一个较好的解决方案。

关键词： catch 22问题密码学量子密码学

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catch模式在住院患者跌倒安全管理中的应用

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四川医学 2018年第3期39卷 257-261页

作者：阳国兴杜光会高山李欢欢四川省医学科学院.四川省人民医院老年消化科四川成都617000

目的探讨和评估catch模式在住院患者跌倒安全管理中的临床效果及应用。方法对我院2015年1月至2016年12月应用catch模式进行对跌倒风险进行全面、全程、全员参与的系统管理前后的跌倒上报事件的临床资料进行回顾性分析。其中2015年1月至2... 详细信息

目的探讨和评估catch模式在住院患者跌倒安全管理中的临床效果及应用。方法对我院2015年1月至2016年12月应用catch模式进行对跌倒风险进行全面、全程、全员参与的系统管理前后的跌倒上报事件的临床资料进行回顾性分析。其中2015年1月至2015年12月我院未应用catch模式进行系统管理收治患者总床日数为1399473例,2016年1月至2016年12月我院应用catch模式进行系统管理后收治患者总床日数为1411789例。分析应用catch模式的前后两组两组患者跌倒发生情况、特征及对于护理工作的满意程度。结果与未应用catch模式进行对跌倒风险管理的2015年相比,2016年我院患者在住院期间跌倒数降低,差异具有统计学意义(Pcatch模式进行多学科合作的管理团队更为全面有效,该模式值得借鉴和推广。

关键词： catch 住院患者跌倒安全管理

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catch:AE的两把刷子

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中国广告 2002年第4期 82-83页

作者：陈芳瑜

做一个好 AE 必须要有两把刷子,一把是"记性",一把是"细心"。你如果没有这两样,就算事情照样做,只怕也会零零落落。你有没有算过一天里,要打出多少通电话?写下几张工作单?做几次工作演示文稿?接收多少次的客户指令?收递多少对象?确认几... 详细信息

做一个好 AE 必须要有两把刷子,一把是"记性",一把是"细心"。你如果没有这两样,就算事情照样做,只怕也会零零落落。你有没有算过一天里,要打出多少通电话?写下几张工作单?做几次工作演示文稿?接收多少次的客户指令?收递多少对象?确认几件完稿?撰写多少报告?处理几张报价?……你有没有办法记下所有的事情?并一一追踪不造成疏漏呢?我想很多的 AE 大概都有这个困扰,因为记性不好、不够细心而被上司、客户叮个满头包,反观记性好的 AE 可就吃香多了。不过呢,纵使天生有缺陷,凭着后天的努力还是可以有所为的,除非你是属于无可救药型,那么我劝你还是不要吃 AE这行饭,否则只会让你一个头两个大,连带也拖垮了整个广告团队的战斗力。

关键词： catch 讯息

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catch PHRASE & VOGUE WORD异同辨

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外国语文 1999年第4期24卷 53-56页

作者：陆钦红杭州商学院外语系杭州310035

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