A multiple-sequence variant of the multiple-baseline design: A strategy for analysis of sequence effects and treatment comparison.

The design logic and potential uses of a variant of the multiple-baseline design that implements multiple treatment sequences is described. The multiple-baseline multiple-sequence (MBL-MS) consists of 2 or more multiple-baseline designs that are interlaced with one another and include all possible sequences of the treatments. The counterbalanced sequencing of treatments permits observation of any sequence effects that are present. This sequencing can permit identification of an optimal treatment sequence and comparison of relative efficacy of treatments. This variation of the multiple baseline also extends the available treatment comparison designs by providing an additional design that does not require reversal or treatment or sequence effects. Because of vulnerability to ceiling and floor effects, the MBL-MS design appears to be primarily useful for the comparison of treatments that take several sessions to produce an optimal level of responding or when the behavior is not subject to floor or ceiling effects. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

q元缩减发生器

Coppersmith,Krawczyk和Mansour提出了由两个二元线性移存器经过简单组合而成的缩减发生器。文中讨论了缩减发生器产生序列的结性复杂度稳定性，并把缩减发生推广为由两个q元线移存器经过简单组合而成的q元缩减发生器，同时研究了q元缩减发生器产生的序列的周期、线性复杂度和元素的分布。     

Learning correct responses and errors in the Hebb repetition effect: Two faces of the same coin.

In a serial recall task, the Hebb repetition effect occurs when recall performance improves for a sequence repeated throughout the experimental session. This phenomenon has been replicated many times. Nevertheless, such cumulative learning seldom leads to perfect recall of the whole sequence, and errors persist. Here the authors report evidence that there is another side to the Hebb repetition effect that involves learning errors produced in a repeated sequence. A learning measure based on past recalls (correct or incorrect) shows that the probability of a given response increases with the number of prior occurrences of that response. The pattern of results reveals another manifestation of the Hebb repetition effect and speaks to the nature of implicit learning. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

跳汰机上数控风阀一种新控制

采用逻辑控制模块对洗选设备中的跳汰机数控风阀重新设计，降低了成本，提高了可靠性和集成度。此装置可以根据逻辑时序图直接对逻辑控制模块进行编程和参数设置。     

A neural network based predictor of residue contacts in proteins

We describe a method based on neural networks for predictingcontact maps of proteins using as input chemico-physical andevolutionary information. Neural networks are trained on a dataset comprising the contact maps of 200 non-homologous proteinsof well resolved three-dimensional structures. The systems learnthe association rules between the covalent structure of eachprotein and its correspondent contact map by means of a standardback propagation algorithm. Validation of the predictor on thetraining set and on 408 proteins of known structure which arenot homologous to those contained in the training set indicatethat this method scores higher than statistical approaches previouslydescribed and based on correlated mutations and sequence information.     

选尺法求解哥古猜想解答(续)

哥德巴赫猜想与古叶猜想合成哥古猜想( Goldbach -Guye's Conjecture):任何一个非零偶数(z),都可表达为两个素数(y及x)之‘和’或‘差’;即有z+=y+x,或有z=y-x.当知z+或z-时,如何求解y及x配偶成副呢?文章介绍了求解哥古猜想解答的一种选尺法(利用‘y尺’与‘x尺’间的相对位移)...     

全断面双护盾掘进机检修洞室开挖

在长隧洞开挖中由于TBM设备不能一次性完成掘进任务,需中间停机进行一次全面维护,而检修洞室的开挖至关重要,在围岩较差的情况下,要合理调整开挖参数,科学安全分块开挖。文中着重对全断面双护盾掘进机检修洞室的开挖施工顺序进行了分析,为今后的类似工程施工提供经验和参考。     

宝泉抽水蓄能电站的特殊设备和特殊保护

宝泉抽水蓄能电站为适应机组在发电和抽水工况的不同磁场旋转方向,设置了换相闸刀、被拖动闸刀、拖动闸刀、起动母线及特殊设备,并针对各种特殊工况下的非常运行方式,设置了电压相序监视保护、低频保护、低功率保护、逆功率保护、低频过流保护及定子保护。从而实现其调峰填谷、调节电压频率及事故备用等功能。     

辽河坳陷西部凹陷鸳鸯沟地区层序地层划分与岩性圈闭预测

运用层序地层学的理论与方法,综合分析岩心、测井以及地震等资料,将辽河坳陷西部凹陷鸳鸯沟地区古近系裂陷期的沉积充填划分为4个超层序和8个三级层序.该区主要发育同沉积断裂坡折型层序,坡折带之下是岩性油气藏发育的主要部位.结合该区层序格架中油气分布规律,对该区岩性圈闭进行了预测.通过钻探锦310井,在预测目的层段试油获高产油气流,证实了锦1断裂坡折带之下为西部凹陷有利的岩性油气藏发育区带.     

Context-sensitive adjustments of cognitive control: Conflict-adaptation effects are modulated by processing demands of the ongoing task.

Dynamic adjustments of cognitive control in response to interference from irrelevant stimulus attributes have repeatedly been shown. The purpose of the current research was to investigate how these control adjustments are modulated by the processing demands of a primary task. To this end, the authors combined a primary task (a number comparison task: classifying digits as smaller or larger than 5) with a Simon task. Control adjustments were observed in the form of typical sequential modulations of the Simon effect. In addition, the authors found sequential modulations of the numerical distance effect and an interaction of both effects. Results suggest that not only response conflict due to interference from task-irrelevant features but also processing demands of task-relevant features determine the level of control adjustment in the subsequent trial. (PsycINFO Database Record (c) 2010 APA, all rights reserved)