Representational momentum is not (totally) impervious to error feedback.

The influence of feedback on representational momentum for the final location of a moving target was examined in 3 experiments. The presence of binary feedback (correct, error) during practise trials or during larger blocks of experimental trials did not reduce representational momentum, nor did the presence of more informative feedback specifying the direction of error (error—in front of, error—behind) during larger blocks of experimental trials reduce representational momentum. Effects on representational momentum of whether feedback was consistently provided were inconsistent. Even though feedback did not reduce representational momentum per se, feedback did influence the probability of a same response for different probe positions. Implications of the data for R. A. Finke and J. J. Freyd's (1985; J. J. Freyd, 1987) claim that representational momentum is impervious to error feedback, and possible roles of perceptual learning in representational momentum, are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Gravity and solidity in four great ape species (Gorilla gorilla, Pongo pygmaeus, Pan troglodytes, Pan paniscus): Vertical and horizontal variations of the table task.

Three experiments modeled after infant studies were run on four great ape species (Gorilla gorilla, Pongo pygmaeus, Pan troglodytes, Pan paniscus) to investigate their reasoning about solidity and gravity constraints. The aims were: (a) to find out if great apes are subject to gravity biased search or display sensitivity for object solidity, (b) to check for species differences, and (c) to assess if a gravity hypothesis or more parsimonious explanations best account for failures observed. Results indicate that great apes, unlike monkeys, show no reliable gravity bias, that ape species slightly differ in terms of their performance, and that the errors made are best explained by a gravity account. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

一种新型齿轮廓线形成的径向包络方法

提出一种新方法加工的齿轮廓线，可有效克服渐开线齿轮廓曲线的不足，不用VB语言编制了相应的计算机仿真程序，对其进行了检验、证明。     

轻型钢结构门式刚架在GMP厂房中的应用

为了保持洁净厂房的气密性,从建筑结构设计角度,结合GMP厂房的施工构造做法,提出合理的结构布置方案。通过对门式刚架结构在风荷载作用下的柱顶位移进行参数分析,提出用于GMP厂房的门式刚架结构的位移限值不大于厂房结构高度1/240的建议取值,可供类似工程的洁净车间施工及结构设计参考。     

交联聚合物调驱技术在高尚堡油田高浅北区的应用

为实现高尚堡油田高浅北区的持续稳产和提高采收率,把交联聚合物调驱技术应用到高浅北区。2008年根据高浅北区油藏条件及剩余油情况分析了高浅北区交联聚合物整体调驱可行性,并根据多方面因素确定了交联聚合物整体调驱的目标区,共设计了26口调驱井;设计了交联聚合物调驱体系配方和科学合理的注入方案。交联聚合物调驱技术在高浅北区的应用已经取得了显著效果,注入压力上升,日采油量上升,提高了原油采收率,表明该技术适用于边水油藏。     

斜交板桥横桥向位移原因分析及处治措施

针对一座大角度斜交的空心板桥梁出现的横桥向位移等病害，从力学分析的角度分析了该桥产生病害的主要原因。相关调查资料表明，大多数简易支座斜交板桥存在缓慢下滑和平面内转动的现象，其主要原因是横向下滑力和平面内不平衡力矩。据此提出了该桥的加固处理对策，并对今后进行斜交板桥设计和施工提出了建议，以期引起同行对此类型桥梁病害的重视。     

Multiphase poroelastic modeling in semi-space for deformable reservoirs

Field observations suggest that while pressure depletion is a local process that occurs dominantly in reservoirs being exploited, it triggers a redistribution of effective stress in a more extensive domain that involves not just the adjacent strata, but the entire overburden and surrounding rocks out to considerable distances. In an infinite or semi-infinite domain, a petroleum reservoir can be simulated as a displacement discontinuity, permitting use of an efficient displacement discontinuity boundary element method to calculate surrounding stress and displacement changes. A 3D poroelastic finite element method is used to account for the local reservoir model. By coupling the displacement discontinuity and finite element models, a 3D poroelastic reservoir in an infinite or semi-infinite domain is simulated. The numerical model has been verified and numerical examples are given. Results show that the relative deformation properties of surrounding strata have significant effects on pressure drawdown and reservoir deformation during production, and thus should be taken into account.     

等截面单跨超静定梁杆端弯矩的统一算式

本文介绍的统一算式是各种支座形式受集中荷载作用,等截面单跨超静定梁杆端弯矩归为统一的计算公式。对受均布荷载作用的情况,杆端弯矩可以通过积分求出。     

新型电阻应变式位移传感器的研究

本文研究了一种新颖的WS型电阻应变式位移传感器。该位移传感器具有稳定性强、线性好、精度高、方向正、触反力小、灵巧和电测机测并用等优点,可与任何电阻应变仪配套,用于生产、科研、教学中测量位移。     

置换色谱理论研究进展

置换色谱是一种非线性色谱技术，既适合于制备分离又能用于较稀的生物样品或痕量组分的直接分离。因此在生物样品的分离分析领域得到广泛应用。置换色谱理论研究的目的在于揭示置换色谱的本质，对于置换色谱技术的发展起着重要作用。在此对置换色谱理论研究进展进行了综述。