993 resultados para 204-1251C


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Traz os conceitos e os objetivos de uma escola do Legislativo, as interações e os desafios da educação não escolar. As escolas de governo, as universidades corporativas, as organizações não governamentais, os institutos e fundações político-partidárias e os desafios enfrentados. A experiência do Parlamento Jovem - a simulação parlamentar como instrumento de educação para a democracia. A missão pedagógica das escolas do Legislativo, e considerações sobre o futuro do sistema de educação do Legislativo.

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对于任意形状、充满粘性液体的腔体绕惯性主轴整体旋转的一般情形,导得小扰动运动的一组线性微分一积分方程组.在稳定理论基础上发展的一系列方法都处理不了这个问题.本文应用文献[1]中的方法导得这个问题变分原理的一般形式,并得到一系列稳定判据,以前不少作者的结果均是本文的特例~([3-6])。本文的变分方法在充液腔体运动稳定性问题中具有较广泛的应用,对于线性非自伴本征值问题原则上都能应用。

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<正> 对于开口截面彈性薄壁杆件的振动問題,符拉索夫在1940年提出的理論,是基于下列两个基本假設:(1)截面具有剛硬不可变形的周綫;(2)中曲面无剪应变。其后,有些学者也曾提出过相同的理論(例如.R.海里格).由于忽略了中曲面的剪应变,我們可以估計得到,符拉索夫的理論只适用于研究低频率的固有振动和強迫振动,而不适用于研究高频瘁的振动。由于行动載荷和冲击载荷必然引起各个固有频率的振动,因此符拉索夫的理論也不适用于研究这些載荷作用下的振动問題。为了要更好地研究这些問題,必須要考慮剪应变的影响。

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We try to connect the theory of infinite dimensional dynamical systems and nonlinear dynamical methods. The sine-Gordon equation is used to illustrate our method of discussing the dynamical behaviour of infinite dimensional systems. The results agree with those of Bishop and Flesch [SLAM J. Math. Anal. 21 (1990) 1511].

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Denúncia de conspiração que se vem desenvolvendo no seio do próprio Governo, visando à derrocada da administração do Presidente Castelo Branco. Trama que neste sentido vem sendo preparada pelos Ministros Otávio Bulhões, Roberto Campos e Arnaldo Sussekind, e pelo Diretor do DASp. Protesto contra o fato de o Ministro de Trabalho vir desprezando os acordos salariais firmados no ano findo (aeroviário e marítimos). Críticas aqueles que vêm atuando no sentido de impedir a consolidação de Brasília como Capital Federal. Referências ao retorno de seções do Banco do Brasil e da CONTEL para a Guanabara.

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应用岩层破断过程分析SFPA2D系统 ,分析了采动影响下覆岩破坏的动态发展过程。数值模拟再现了上覆岩层离层、弯曲、沉降、开裂直至冒落的全过程 ,以及采动工作面推进过程中逐步演化的应力场和应变场。根据数值模拟的结果 ,初步探讨了覆岩破断机理 ,指出覆岩的破断特征受分步开挖引起的应力重新分布及其损伤积累以及岩梁的非均质性的影响。

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在竖直振动的圆柱形容器中,利用理想流体中两时间尺度奇摄动展开法,研究了包括表面张力影响的自由面单一表面驻波的运动.通过求解势流方程,获得了一个包含三阶非线性项、外激励及表面张力影响的非线性振幅方程.结果表明当驱动频率较低时,表面张力对表而波模式选择不重要;然而,当驱动频率较高时,表面张力的影响是不可忽略的.说明表面张力具有使得自由面返回到平衡位置的作用.另外,由于考虑了表面张力的影响,使得理论结果比无表面张力时更加接近先前的实验结果.

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One of the causes of lower artesian pressure, water waste and aquifer contamination is the misuse and insufficient care of artesian wells. In 1953, Senate Bill No. 57, entitled "An Act to Protect and Control the Artesian Waters of the State" (see Appendix) became a law. This law was passed through the efforts exerted by leading members of the Senate and the House of Representatives, who understood the need for a wise and controlled expenditure of our most valuable natural resource. The State Geologist and his authorized representatives were designated by this law to enforce this conservation measure; however, no financial provision was included for the 1953-55 biennium. The proposed program of the Florida Geological Survey for this biennium did not include the funds nor provide any full-time personnel for the enforcement of this statute. As a result, little actual work was accomplished during these two years, although much time was given to planning and discussion of the problem. Realizing that this program could provide additional basic data needed in the analysis of the water-supply problem, the State Geologist sought and was granted by the 1955 Legislature adequate funds with which to activate the first phase of the enforcement of Florida Statute No. 370.051-054. Enumerated below is a summary of the progress made on this investigation as outlined previously: 1. Data have been collected on 967 wildly flowing wells in 22 counties. 2. Chloride determinations have been run on 850 of the 967 wells. 3. Of the 967 wells, 554 have chlorides in excess of the 250 ppm, the upper limit assigned by the State Board of Health for public consumption. 4. Water escapes at the rate of 37, 762 gallons per minute from these 967 wells. This amounts to 54, 377, 280 gallons per day. The investigation is incomplete at this time; therefore, no final conclusions can be reached. However, from data already collected, the following recommendations are proposed: 1. That the present inventory of wildly flowing wells be completed for the entire State. 2. That the current inventory of wildly flowing wells be expanded at the conclusion of the present inventory to include all flowing wells. 3. That a complete statewide inventory program be established and conducted in cooperation with the Ground Water Branchof the U.S. Geological Survey. 4. That the enforcement functions as set down in Sections 370.051/.054, Florida Statutes, be separated from the program to collect water-resource data and that these functions be given to the Water Resources Department, if such is created (to be recommended by the Water Resources Study Commission in a water policy law presented to the 1957 Legislature). 5. That the research phase (well inventory) of the program remain under the direction of the Florida Geological Survey. (PDF contains 204 pages.)

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A detailed study of the geology and ground-water resources of Manatee County (fig. 1) was made during the period from 1950 to 1955. This report contains a table of well records that was compiled from data collected during that investigation. The well-numbering system used in the table is based on latitude and longitude. (PDF contains 204 pages.)

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CONTENTS: I. U.S.-Japan Cooperation Open Ocean Aquaculture – A Venue for Cooperative Research Between the United States and Japan.............................................................................. 1 C. Helsley II. Growth, Nutrition and Genetic Diversity Daily Ration of Hatchery-Reared Japanese Flounder Paralichthys olivaceus as an Indicator of Release Place, Time and Fry Quality. In situ Direct Estimation and Possibility of New Methods by Stable Isotope............................ 7 O. Tominaga, T. Seikai, T. Tsusaki, Y. Hondo, N. Murakami, K. Nogami, Y. Tanaka and M. Tanaka Nucleic Acids and Protein Content as a Measure to Evaluate the Nutritional Condition of Japanese Flounder Paralichthys olivaceus Larvae and Juveniles........................................................................................................ 25 W. Gwak Genetic Diversity Within and Between Hatchery Strains of Flounder Paralichthys olivaceus Assessed by Means of Microsatellite and Mitochondrial DNA Sequencing Analysis...................................................................... 43 M. Sekino, M. Hara and N. Taniguchi Tracking Released Japanese Flounder Paralichthys olivaceus by Mitochondrial DNA Sequencing................................................................................ 51 T. Fujii Preliminary Aspects of Genetic Management for Pacific Threadfin Polydactylus sexfilis Stock Enhancement Research in Hawaii........................................ 55 M. Tringali, D. Ziemann and K. Stuck Enhancement of Pacific Threadfin Polydactylus sexfilis in Hawaii: Interactions Between Aquaculture and Fisheries............................................................. 75 D. Ziemann Aquaculture and Genetic Structure in the Japanese Eel Anguilla japonica..................... 87 M. Katoh and M. Kobayashi Comparative Diets and Growth of Two Scombrid Species, Chub Mackerel Scomber japonicus and Japanese Spanish Mackerel Scomberomorus niphonius, in the Central Seto Inland Sea, Japan.................................. 93 J. Shoji, M. Tanaka and Tsutomu Maehara iii Evaluating Stock Enhancement Strategies: A Multi-disciplinary Approach................... 105 T. M. Bert, R.H. McMichael, Jr., R.P. Cody, A. B. Forstchen, W. G. Halstead, K. M. Leber, J. O’Hop, C. L. Neidig, J. M. Ransier, M. D. Tringali, B. L. Winner and F. S. Kennedy III. Physiological and Ecological Applications Predation on Juvenile Chum Salmon Oncorhynchus keta by Fishes and Birds in Rivers and Coastal Oceanic Waters of Japan................................... 127 K. Nagasawa and H. Kawamura Interaction Between Cleaner and Host: The Black Porgy Cleaning Behavior of Juvenile Sharpnose Tigerfish Rhyncopelates Oxyrhynchus in the Seto Inland Sea, Western Japan............................................................................. 139 T. Shigeta, H. Usuki and K. Gushima IV. Case Studies Alaska Salmon Enhancement: A Successful Program for Hatchery and Wild Stocks............................................................................................... 149 W. Heard NMFS Involvement with Stock Enhancement as a Management Tool........................... 171 T. McIlwain Stock Enhancement Research with Anadromous and Marine Fishes in South Carolina...................................................................................... 175 T. I. J. Smith, W. E. Jenkins, M. R. Denson and M. R. Collins Comparison of Some Developmental, Nutritional, Behavioral and Health Factors Relevant to Stocking of Striped Mullet, (Mugilidae), Sheepshead (Sparidae), Common Snook (Centropomidae) and Nassau Groupers (Serranidae)........................... 191 J. W. Tucker Jr. and S. B. Kennedy Participants in the Thirtieth U.S.-Japan Meeting on Aquaculture................. Inside Back Cover iv (PDF has 204 pages.)

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Parte 1 - Atos do Poder Legislativo.

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本书共有16篇论文,论述了国内外有关复合材料及其结构力学等方面新近进展的情况。如:复合材料及其结构的粘弹性力学、三相模型下复合材料的细观力学性质等。

目录

第一章 复合材料力学的统计断裂理论和单向复合材料的随机临界核理论

范赋群 曾庆敦

第一节 引言

第二节 纤维强度分布的统计特性

第三节 纤维束的统计分析

第四节 链式模型

第五节 单向复合材料纵向拉伸的破坏形式

第六节 应力集中因子

第七节 复合材料力学的统计断裂理论

第八节 杂交(混杂)复合材料的统计分析

第九节 单向复合材料的随机临界核理论

参考文献

第二章 含夹杂脆性基体复合材料的几个力学问题&杜善义 韩杰才

第一节 引言

第二节 脆性基体含脆性夹杂的微结构力学

第三节 含随机分布晶须和微裂纹的脆性复合材料本构关系

第四节 含随机分布相变夹杂的陶瓷复合材料增韧

第五节 脆性基体含延性夹杂的增韧分析

第六节 结束语

参考文献

第三章 复合材料及其结构的粘弹性力学&张恒 王震鸣 李江

第一节 引言

第二节 聚合物材料的粘弹性本构关系

第三节 复合材料的粘弹性本构方程

第四节 动态粘弹性性能研究

第五节 复合材料结构粘弹性问题的求解

参考文献

第四章 复合材料含孔层合板拉伸强度的分析方法&李顺林 熊中侃

第一节 引言

第二节 应力集中系数法

第三节 材料力学分析模型法

第四节 断裂力学分析模型法

第五节 复合材料力学分析模型法

参考文献

第五章 纤维束及其单向复合材料应变率相关的统计本构理论研究

夏源明 杨报昌

第一节 引言

第二节 冲击拉伸试验技术

第三节 组分材料的应变率相关性

第四节 单向纤维增强复合材料的应变率相关性

第五节 环境影响

第六节 展望

参考文献

第六章 复合材料层合结构层间应力的计算研究&顾德淦

第一节 引言

第二节 线弹性均匀拉伸模型的计算

第三节 其它线弹性模型的计算

第四节 非线性弹性模型的计算

第五节 弹塑性模型的计算

第六节 结语

参考文献

第七章 纤维增强复合材料的细观压缩失稳&魏悦广 杨卫

第一节 引言

第二节 细观压缩失稳的研究概况

第三节 平面弹塑性失稳理论

第四节 贯穿折曲带

第五节 表面失稳与扩展折曲带

第六节 压缩失稳模式的缺陷敏感性

第七节 水平破坏带的扩展

第八节 承压复合材料的增强与增韧

参考文献

第八章 复合材料在复杂加载下的强度与损伤研究&王兴业 杨光松

第一节 引言

第二节 复合材料在复杂应力状态下的强度问题

第三节 复合材料张量多项式强度准则的分析

第四节 张量多项式强度准则相互作用系数确定方法的探讨

第五节 复合材料在复杂应力状态下强度准则的实验研究

第六节 复合材料在双向载荷下的损伤

参考文献

第九章 任意铺设复合材料层板在复杂载荷下的屈曲与后屈曲分析

曹大卫 成广民 马兰芝

第一节 引言

第二节 不对称层板屈曲、后屈曲的能量表达式

第三节 应用Rayleigh-Ritz法解屈曲与屈曲后问题

第四节 算例与讨论

参考文献

第十章 复合材料柱型壳的铺层优化和初始后屈曲特性&孙国钧

第一节 引言

第二节 80年代复合材料圆柱壳铺层优化的研究进展

第三节 组合载荷作用下层合圆柱壳的铺层优化和实验研究

第四节 双向铺设层合圆柱壳的优化设计

第五节 复合材料加筋圆柱壳的优化设计

第六节 复合材料椭圆柱壳在轴压下的稳定性

参考文献

第十一章 三相模型下复合材料的细观力学性质&罗海安

第一节 引言

第二节 三相模型下的Eshelby张量与修正的Mori-Tanaka方法

第三节 三相柱形模型下的刃型位错

第四节 三相模型下纤维增强复合材料的基体裂纹

第五节 三相模型下纤维增强复合材料的界面裂纹

第六节 结论

参考文献

第十二章 复合材料结构连接的应力分析&吴代华 晏石林

第一节 引言

第二节 复合材料胶接接头分析

第三节 复合材料机械接头分析

参考文献

第十三章 复合材料及其结构的湿热效应研究&陈浩然 息志臣 孙延波

第一节 引言

第二节 湿热瞬态分析

第三节 热自由边界效应

第四节 湿热变形和湿热应力

参考文献

第十四章 用加权残值法分析计算不同边界条件下层板的屈曲问题&李卓球

第一节 引言

第二节 层板非线性弹性的屈曲计算与分析

第三节 层合圆柱曲板的非线性弹性屈曲

第四节 用加权残值法计算层板的后屈曲问题

第五节 层板高阶剪切变形理论的屈曲分析

参考文献

第十五章 复合材料多连通板的应力场计算&林佳铿 王林江

第一节 引言

第二节 分析方法

第三节 算例

第四节 讨论和结论

参考文献

第十六章 基体对玻璃纤维缠绕火箭发动机壳体强度影响机理的研究

嵇醒 卢天健 顾星若

第一节 引言

第二节 实验结果分析

第三节 有限元分析

第四节 实验验证

第五节 最佳平衡系数K?

第六节 环氧复合材料基体的层间剪切强度

第七节 层间剪切破坏的扫描电镜观察

第八节 结语

参考文献