查询词典 attention span

The mechanical behavior of Shape Memory Alloys material is tested, and the constitutive model of the SMA is established. A kind of SMA combined rubber isolator is developed, and the isolation effect of the SMA combined rubber isolator for long-span bridge and tall building structures is numerically simulated, from which the adaptive isolation performance and the self-restoring capacity of the SMA combined rubber isolator are verified. A kind of SMA damper is developed, the mechanical behavior of the SMA damper is tested, and the model of restoring force of the SMA damper is established. The theory and method of adaptive control based on the SMA damper for the long-span bridge are built, and the effectiveness and reliability of the adaptive control for the long-span bridge using the SMA damper are verified through numerical simulation and model test. The MRF-04K type magnetorheological damper is developed, the mechanical behavior of the MR damper is tested, and the model of restoring force of the MR damper is established. The theory and method of adaptive control based on the MR damper for the long-span bridge and tall building structures are built, and the effectiveness and reliability of the adaptive control for the long-span bridge and tall building structures using the MR damper are verified through numerical simulation and model test. In addition, the theory and method of sub-structural damage identification for long-span bridge are derived, the influence of soil-structure dynamic interaction on the seismic isolation and control effects with different isolation and control measures and the damage responses and the sliding base-isolation of large structures under the excitation of underground explosion are investigated.

试验研究了形状记忆合金材料的力学性能，建立了SMA材料的本构模型；研制了一种SMA复合橡胶隔震支座，数值仿真分析了应用SMA复合橡胶支座的大跨桥梁和高层建筑结构的隔震效果，从而验证了SMA复合橡胶支座的自适应隔震性能及其震后自恢复能力；研制了一种SMA阻尼器，试验研究了SMA阻尼器的力学性能，建立了SMA阻尼器的恢复力模型，建立了基于SMA阻尼器的大跨桥梁结构自适应控制理论与方法，通过数值仿真与模型试验验证了大跨桥梁结构SMA阻尼器自适应控制的有效性与可靠性；研制了一种MRF-04K型磁流变阻尼器，试验研究了MR阻尼器的力学性能，建立了MR阻尼器的恢复力模型，建立了基于MR阻尼器的大跨桥梁和高层建筑结构的自适应控制理论与方法，通过数值仿真和模型试验验证了大跨桥梁和高层建筑结构MR阻尼器自适应控制的有效性与可靠性；还建立了大跨桥梁结构的子结构损伤识别的理论与方法，研究了土-结构动力相互作用对不同隔震和控制措施的减震控制效果的影响以及地下爆炸波作用下各类大型结构的灾害响应与滑移隔震。

The researches show that self-stability span is synthetical reflection of surrounding rock stability, so sub-classification standard can be constituted based on it. Surrounding rock self-stability span can divide into long-term stability span, basic stability span, temporary stability span and instability span.

研究结果显示：围岩自稳跨度是围岩自稳性的综合反映，围岩自稳跨度可分为长期稳定跨度、基本稳定跨度、暂时稳定跨度和不稳定跨度。

Based on the present findings, it appears that all the Taiwan WAIS-Ⅲ working memory index, the single Arithmetic and the Digit Span subtests, and the span scores of the Digit Span subtest could adequately discriminate individuals without working memory impairment, but had poor sensitivity on detecting the patients who evidenced working memory impairment. Accordingly, it is suggested that clinicians should gauge the working memory index by a composite of the Arithmetic, the Digit Span, and the Letter-Number Sequencing subtests if possible. Otherwise, a caveat should be taken with care to interpret the working memory index, as estimated by a composite of the Arithmetic and the Digit Span subtests, because the chance of the increasing false negative rate becomes ineludible.

综合上述，显见WAIS-Ⅲ中文版中之工作记忆指数、单一算术及单一记忆广度分测验、或记忆广度分测验之各项广度值在区分患者有无工作记忆功能异常上皆拥有良好之区辨力，但对侦测工作记忆功能异常患者的敏感度普遍不佳，建议临床工作者应尽量取得算术、记忆广度、与数－字序列等三项分测验组合所估算之工作记忆指数；若在有限条件下，临床工作者仅能以算术与记忆广度两项分测验之组合所估算之工作记忆指数来评估受试者工作记忆，应留意假阴性比例上升的问题。

Four research results in the research are provided on the basis of wholly absorbed attention behavior performance including eyes-gazing, concentration as well as completion of orders, attention-testing performance, and multiple attention-testing performance. The collected materials are analyzed throughvisual analyze and Tryon's C statistic. The results of this research are as follows: 1. Attention-training maintains and give rise to samples' attention behavior. 2. Attention-training makes samples' attention-testing performance better. 3. Attention-training has generalization effects on samples' self-instruction and strategies for monitoring and behavior. 4. Attention-training has different effects on samples of different genders.

本研究以专心注意行为表现、自编注意力测验表现、多向度注意力测验表现及班级教师访谈问卷四项结果作为依据，所得的资料以目视分析法及C统计进行分析，所得研究结果如下：一、三位受试者之C统计值达显著(P1.65)，显示注意力训练对受试者的专心注意行为具有提升与维持效果；二、三位受试者在四项分测验中，有三项测验之C统计值达显著(P1.65)，显示注意力训练对受试者在注意力测验的注意力表现具有提升效果；三、由班级教师访谈问卷分析中得知注意力训练对受试者的自我指导、监控策略与行为具有迁移效果；四、由自编注意力测验结果分析显示，注意力训练对不同性别学生能显现不同的训练效果。

And tonight is my first time on c-span, which is a channel i obviously always watch when i couldn"t stand the sensationalism and demagoguery of pbs and qvc. if i still couldn"t fall asleep after watching c-span, there is c-span 2 and c-span 3. thank you very much.

今晚是我第一次来到c-span频道，通常当我无法忍受pbs和qvc的鼓吹与煽动时我就会选择看你们的频道（pbs的节目以主观著称，qvc则是购物频道，说这段的时侯镜头给了下面人一个特写，莫非是这两个频道的老板？

The stretching influence on the near trusses should be considered when using the stretching-twice method, and the construction is hard to be controlled. The Harbin exhibition sports center with a 128m support span, attached to a deep design calculation of the super-large span prestress truss string structure, stretching once in tension bed method is brought forward for the bottom cable of the single truss string structure. From calculation research on the friction force between the tension bed and the truss string structure, the friction influence is considered for the displacement method of the middle of span, with the action of the fixed cable stress. This method, with vertical displacement of the middle of span as its main control target for prestress stretching, is successfully applied in the prestress stretching construction of the project.

二次张拉需考虑张拉对相邻桁架的影响，施工控制难度大，本文结合哈尔滨会展体育中心支座跨度128m的超大跨度预应力张弦桁架结构的深化设计计算，提出了单榀张弦桁架下弦拉索胎架一次张拉法施工方法，通过对张拉阶段胎架与张弦桁架间摩擦力的计算研究，定量索力下跨中位移法考虑摩擦力影响，以跨中竖向位移作为预应力张拉的主要控制指标，成功地完成了该工程预应力张拉施工。

Between the Chinese and American culture difference has accomplished the China and America classroom instruction difference, but this kind of difference comes from in the Chinese and American education idea and the educational system difference, the China elementary education attention knowledge accumulation and instills into, the attention trains the student to ask the same thought and the attention trains the student to the knowledge itself grasping, but US pays great attention to actually trains the student to carry on the solution actual problem using the knowledge ability, the attention trains the student to the knowledge innovation and the development, also the attention raises the student criticalness thought and the divergent thought.

中美文化之间的差异造就了中美课堂教学的差异，而这种差异来自于中美教育理念和教育制度上的不同，中国基础教育注重知识的积累和灌输，注重培养学生的求同思维和注重培养学生对知识本身的掌握，而美国却注重培养学生运用知识进行解决实际问题的能力，注重培养学生对知识的创新和拓展，且注重培养学生批判性思维和发散性思维。

The structure parameter influences on lateral stability, such as crankle rigidity ratio of arch rib, arch axis coefficient, arch high span ratio, lateral rigidity of bridge decking and arch rib ratio, the effect of non-orientedly conservative loadings of bridge deck, lateral wind loadings were discussed. Corresponding numerical charts were given, and they may be of some reference value and helpful to the parameter design of ribbed arches.2. In this paper, the example bridge is a long-span half-through CFST arch bridge of a 100m span in Yi Lan.

分析了拱肋的抗扭刚度与横向抗弯刚度比、拱轴系数、矢跨比、桥面系的横向抗弯刚度与拱肋的横向抗弯刚度比、桥面系横向刚度引起的非保向力效应、横向风荷载对单肋拱横向稳定的影响，并给出了相应的图表，为拱桥设计时拱肋的结构参数的选取提供一定的依据。

In company with nonstop rushing of the long-span tunnel construction, a matterstation encounter more and more. For instance, the demand of the present design and construction code is already insatiability with the need of long-span tunnel engineering design and construction. And both domestic and foreign concerned research output is not too much to refer. So the engineering design and construction on long-span tunnel has definite blindness of the approve use for reference.

随着大跨度隧道建设的不断涌现，所遇到的问题也越来越多，比如现行的设计与施工规范已经不能满足大跨度隧道设计与施工的需要了，但国内外有关的研究成果并不多，可借鉴的设计与施工经验较少，大跨度隧道的设计与施工带有一定的盲目性。

In Hongfenghu long Span Bridge construction, stiff skeleton method is adopted to implement closure of main span and side span, by taking a series of measures to assure construction quality,the safe of structure stress and the easement of main beam alignment are assured in the course of closure segment construction.

红枫湖大桥采用劲性骨架法进行边跨和主跨的合龙，并通过采取了一系列确保合龙段施工质量的措施，保证了合龙段施工过程中结构受力的安全和主梁线形的平顺。

I had a lovely dog named PiPi, he was one of my best friends.

我曾经有过一只小狗，它的名字叫皮皮，它很善良，它是我最忠实的朋友。

Newly ovulated mouse oocytes were cultured in the CZB medium supplemented with different concentrations of pyruvate before treated for activation or assayed for MPF activity.

我们猜测卵母细胞在不含丙酮酸的条件下老化的更快，并且卵丘细胞可能通过消耗不含葡萄糖的CZB中的丙酮酸从而促进卵母细胞老化。