查询词典 by-time

Based on the existed theory of mareoids and fuzzy matroids, this thesis studies the closed regular fuzzy matroid and its fundamental sequence, the fuzzy base and its algorithm of closed fuzzy matroids, the fuzzy circuit and its algorithm of closed fuzzy matroids and so on. The main contributions of this thesis are as follows: 1 The necessary and sufficient condition of closed regular fuzzy matroid and a property of its fuzzy dual matroid are found by studying some properties of closed regular fuzzy matroid. 2 By studying some properties of fuzzt bases of closed fuzzy matroid, the necessary and sufficient condition of judging fuzzy bases of closed fuzzy matroids and some corollaries are found. In the end, an algorithm of obtaining a fuzzy base is given. 3 By studying some properties of fuzzt circuits of closed fuzzy matroid, some necessary and sufficient conditions of using its fundamental sequence to express fuzzy circuits are found. An algorithm of obtaining a fuzzy circuit is given. 4 By studying the fundamental sequence of closed regular fuzzy matroid, some necessary and sufficient conditions of fundamental sequence of closed regular fuzzy matroid are found.

本文在现有拟阵和模糊拟阵理论的基础上，研究了闭正规模糊拟阵及其基本序列，闭模糊拟阵的模糊基及算法、模糊圈及算法等内容，现分述如下： 1研究了闭正规模糊拟阵的一些性质，得到了闭正规模糊拟阵的充要条件及其模糊对偶拟阵的一个性质； 2研究了闭模糊拟阵模糊基的性质，找到了闭模糊拟阵模糊基的充要条件和几个推论，最后还给出了求模糊基的算法； 3研究了闭模糊拟阵模糊圈的性质，找到了用基本序列来表达模糊圈的几个充要条件，并给出了求模糊圈的算法； 4研究了闭正规模糊拟阵的基本序列，找到了闭正规模糊拟阵的基本序列的几个充要条件。

The thermal properties, mechanical properties of PI-MWNTs nanocomposite were analyzed by Thermogravimetric analysis, Universal Test Machine and Hardness Pencil Test. The morphology of PI-MWNTs was observed by scanning electron microscopy. The dispersion of MWNTs in matrix were observed by transmission electron microscopy. The electrical property of composite were obtained by Super Megohmmeter.

研究中使用傅立叶转换红外光谱仪来鉴定其化学结构，热重损失分析仪探讨材料的热稳定性质，万能试验机及铅笔硬度计观察其机械性质，扫描式电子显微镜与穿透式电子显微镜来观察材料的表面型态及奈米碳管於基材中的分散性，超绝缘仪量测材料的电性。

The thermal properties and mechanical properties were analyzed by Thermogravimetric analysis and Hardness Pencil Test and Universal Test Machine, respectively. The structure of prepared PI-MWNTs was characterized by Fourier transform infrared spectrometry. The morphology of PI-MWNTs were observed by scanning electron microscopy and transmission electron microscopy. The electrical conductivity was analyzed by Super Megohmmeter.

本研究中使用能量分散光谱仪来鉴定多壁奈米碳管纯化效果，热重损失分析仪、铅笔硬度计、万能试验机分别测定材料的热稳定性质和机械性质，傅立叶转换红外光谱仪来鉴定其化学结构，扫描式电子显微镜与穿透式电子显微镜来观察材料的剖面型态与奈米碳管和基材之间的分散性，超绝缘量测仪量测材料的电性。

The economic interests brought about by the wave of globalization, political interests and values reflected in the underlying contradictions and conflicts, the "Black Whistle,""two games" unjust rulings and competition, brought by the development of modern science and technology,"the use of stimulants,"brought by sports mercerization and profession realization is contrary to the spirit of sports ethics. Competition for viewers in China because of individual preferences shown by the non-ethical behavior. All this forced the construction of contemporary Chinese sports ethics an urgent task.

全球化的浪潮所带来的经济利益、政治利益及蕴涵在其背后的价值观的矛盾和冲突，体育市场化、职业化所带来的"黑哨"，"假球"等不公正的裁决和竞争行为，"兴奋剂使用"以及科技发展所带来的等违背体育伦理精神的问题，观众在比赛进行中由于个人的喜好所表现出的一些不道德行为，所有这些都是当代竞技体育伦理所面临的难题。

Methods: Mesityl oxide in the air was sampled by active carbon tube and desorbed by the solvent of carbon disulfide which included 1% methanol, then separated by FFAP capillary column, and finally detected by hydrogen flame detector. The experimental study was conducted according to the requirements of Regulation of studies on the determination of toxicants in the air of workplace.

工作场所空气用活性炭管采集，经1%甲醇的二硫化碳溶液解吸，FFAP毛细色谱柱分离，氢火焰离子化检测器检测，按照《工作场所空气中有毒物质检测方法研制规范》的要求进行方法研究。

Methods: Mesityl oxide in the air was sampled by active carbon tube and desorbed by the solvent of carbon disulfide which included 1% methanol, then separated by HP-5 capillary column,and finally detected by mass detector.

工作场所空气用活性炭管采集，经1%甲醇的二硫化碳溶液解吸，HP-5毛细色谱柱分离，气质联用仪检测。

Polymer A is a acrylic copolymer containing 70% by weight of methacrylic acid and 30% by weight of methyl methacrylate prepared by a catalytic chain transfer method to give a polymer having a number averaged molecular weight of approximately 600 as measured by GPC.

聚合物A是丙烯酸共聚物其含有甲基丙烯酸重量70％，按重量的30％甲基丙烯酸甲酯的催化链转移的方法准备给予聚合物具有的平均人数约600分子量为由GPC测定。

The expressed product was purified by affinity chromatography and identified by Western blot, then determined for enzyme activity by Micrococcus lysodeikticus turbidimetric method and for biological activity by heat shock method.

表达产物经亲和层析纯化后，进行Western blot鉴定，并用溶壁微球菌比浊法检测酶活性，热激法检测其生物学活性。

1St Week: A general introduction to the nature and contents of the course; an investigation of students' acquired knowledge of literature in general; a brief introduction to African-American literature 2nd and 3rd Weeks: Rediscovering an Invisible Culture (Why Black culture had been unknown and unobserved for several decades; how it came to be rediscovered ) 4th to 6th Weeks: Double Consciousness (the marginal perspective in Language, Oral Culture, Folklore and Religion); Reading representative works by three Black writers of racial consciousness: Douglass, Washington and Bu Bois 7th to 9th Weeks: Minstrelsy (Imitation, Parody and Travesty in Black-White interaction rituals 1830--1920); Reading the novel about the Black life: Uncle Tom's Cabin 10th to 12th Weeks: Social Mobility and Cultural Stigma: The case of Chicago Jazz 1920--1930; Reading poems by Hughes and novels by Wright 13th to 15th Weeks: Oral Tradition and the Quest for Literacy: The crisis of Black writers from Philips Wheatley to Ralph Ellison; Reading the masterpiece of Ellison 16th to 18th Weeks: Contemporary Afro-American Culture: the sixties and seventies (efforts on reconstructing the Black identiy and Black history); Reading novels by Morrison

第1周：介绍课程性质、内容，了解学生相关文学背景，简要概括黑人文学历史第2-3周：再现黑人文化（黑人文化长期被掩盖的事实和原因，重新被发现的原因和过程）第4-6周：双重意识（语言、吟唱文学、民俗民谣、宗教的边缘化），阅读黑人种族意识三代伟大启蒙家道格拉斯、华盛顿、杜波伊斯的代表作第7-9周：吟游文学（黑人与白人的文化互动过程中的模仿、戏仿、曲仿），阅读第一部反映黑人生活的小说《汤姆叔叔的小屋》第10-12周：社会动荡与文化耻辱（芝加哥爵士乐的兴起、流行和影响），阅读休斯和赖特的代表作第13-15周：口头文学传统与争取教育权利的斗争（从惠特利到埃里森的黑人作家危机），阅读拉尔夫·埃里森的代表作第16-18周：六、七十年代以来的美国黑人文化（重建身份和重建历史的努力），阅读莫里森的代表作每位参加该课程学习的学生均须严格出勤，按时完成学读任务，每学期主持两次小型（10分钟）学术报告，第一次针对老师推荐的作家作品做一个专题报告，第二次针对自己的学期研究计划做一个选题前瞻性和可行性报告。

Fifty female patients who were selected to schedule for mammary gland tumor excision surgery, were divided into 2 groups(n=25 in each group): group A: received propofol's half-effective concentration at 3.0 μg/ml in Marsh model by TCI; group B: received propofol's half-effective concentration at 4.0 μg/ml in Marsh model by TCI. All patients were given remifentanil in Minto model by TCI after being given propofol which reached the balance between effect-site concentration and blood plasma concentration. The target concentration of remifentanil was determined by a modification of Dixon's up-and-down method. Laryngeal mask insertion was attempted after 10 mins, the insertion condition and success rate were observed, then the suitable target concentration of remifentanil(ECe50) were calculated.

50例女性乳腺良性手术患者随机分为2组（n=25），A组：靶控输注丙泊酚效应室浓度3.0 μg/ml；B组：靶控输注丙泊酚效应室浓度4.0 μg/ml（均为Marsh药代模型），待其效应室浓度和血浆浓度达平衡后给予靶控输注效应室浓度瑞芬太尼，运用Dixon's序贯法确定喉罩置入时瑞芬太尼浓度，10分钟后置入喉罩并观察喉罩置入条件与成功率，计算出相应的瑞芬太尼适宜靶浓度（ECe50值）。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。