弱势的和强势的——白先勇小说中的男女角色易位

白先勇以弱势的男性和强势的女性作为建构其小说世界的基点。男女角色易位颠覆了男强女弱的传统人物塑造方式，揭示出单个人边缘化生存所不为人知的痛苦。父辈影响、生活经历及其性取向是产生这一特色的根本原因。     

Simon-Type Effects: Chronometric Evidence for Keypress Schemata in Typewriting.

In 4 experiments, chronometric evidence for keypress schemata in typing was sought by presenting stimuli to be typed in positions that were displaced from a central fixation point. Reaction times were shorter when stimulus positions corresponded to keyboard locations of the letters to be typed, suggesting that position was an important part of the internal representation of the response. Experiment 1 presented single letters left and right of fixation. Experiment 2 presented single letters above and below fixation. Experiment 3 presented words left and right of fixation and found evidence of parallel activation of keypress schemata. Experiment 4 found no effect of the eccentricity of the keyboard locations and responding fingers, suggesting that response-location codes are categorical, not metric. The results are consistent with D. E. Rumelhart and D. A. Norman's (1982) theory of typewriting. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Modelling of solvent positions around polar groups in proteins

Previous analysis of the distribution of experimental solventmolecule positions around amino acid side chains showed thatdistinct clustering occurred close to polar or charged atomsin proteins. We have used those data to predict likely solventpositions around proteins not used in our initial analysis.We envisage that this algorithm, AQUARIUS, will be useful forfinding solvent positions in electron density maps generatedby protein crystallography and as useful starting positionsfor solvent molecules in computer simulation studies of macromolecules.     

以项目为导向的VB测绘程序设计课程教学设计与实践

针对VB测绘程序设计课程教学中存在的问题,以学生职业岗位能力培养为核心,以项目为导向,从课程教学模式、教学内容组织、教学过程设计、考核与评价等方面进行了探索与实践,取得了较好的教学效果。     

Multistatic passive radar imaging algorithm for the gapped aperture

Due to usually a small number of narrowband external illuminators and their uneven distribution, a single external illuminator and several receivers are used to synthetize aperture equivalently. The form of the target echo of the multistatic passive radar system is analyzed, and then the relationship of Fourier transform pair between target scattering function and the echo received by radar is deduced. Based on the prior knowledge of sparse distribution of the target, the algorithm of Compressed Sensing is used to recover the scattering coefficient of targets. Finally, the positions of receivers have been optimized by minimizing the correlation of the dictionary matrix based on minimizing the correlation coefficient of the dictionary matrix by the algorithm of Simulated Annealing (SA). Simulations show that the performance of the recovery of the image is improved significantly after optimizing.     

职业岗位能力导向的高职计算机网络课程组建设实践

网络技术职业岗位是高职高专计算机类专业毕业生的一类重要就业方向。本文结合我校"计算机专业网络技术"课程组建设的实践,介绍了以职业岗位能力训练为核心的课程体系设计、核心课程计算机网络教学内容的优化重组、实践教学体系完善和职业技能取证融合等方面的探索与实践。     

Development of a practical foolproof system using ultrasonic local positioning

The objective of this research is to develop a prototype for practical foolproof system which can be used in manual assembly processes. For this purpose, a high-performance and low-cost ultrasonic system is proposed to measure 3D positions of an indoor mobile object. Composed of an ultrasonic sender and a receiver, the system employs ultrasonic time-of-flight (TOF) and trilateration to estimate the positions of the object with an accuracy of few centimeters. To calculate three TOFs, ultrasonic signals are processed full-digitally with a low-cost FPGA, which provides high design flexibility keeping both high performance and low noise. Proposed system is autonomous, so there is no need of an external PC and the system development cost becomes low. As an improved thresholding method to calculate the TOFs, this paper proposes a debounce module, designed in the FPGA, to remove the pulse noises generated during the thresholding. The resulting time delay from the debounce is compensated by a microprocessor for calculating actual TOFs. Lastly, the positions of the mobile object are calculated from the TOFs values by trilateration in the microprocessor. In order to remove measurement noises, both moving average filters and Kalman filters are adopted in calculating the TOFs and positions.     

浅析铁路漏斗装煤仓站站场布置中存在的问题

近几年来运煤铁路专线的建设速度不断加快,这对铁路装煤仓站的装载能力提出了新的要求,目前在我国新建的装煤仓站中,俗称为漏斗仓的不停车连续装煤设备被广泛应用。本文对漏斗仓装煤站场布置当中存在的问题进行了探讨,介绍了装煤站场中的基本车场及其功能,分析了目前普遍采用的4种装车线的利弊以及其合理的应用范围,最后对目前装车线中存在的问题进行了分析并提出了自己的解决措施。     

Enhanced Catalytic Performance of Co/MFI by Hydrothermal Treatment

Hydrothermal treatment of Co/MFI catalysts at high temperature increases their performance for NO _x reduction with methane. As this treatment also shifts the TPR peak of isolated Co ions upward by 20 °C, the results suggest that the hydrothermal treatment induces transport of Co²⁺ ions from to positions.     

反渗透系统最低透盐率的全微分法元件位置优化

分析了反渗透膜元件3项测试指标的离散性,提出了系统流程中不同测试指标膜元件安装位置优化的概念,描述了膜元件位置优化的全微分计算方法,明确了全微分法元件位置优化对于降低系统透盐率的有效性,并验证了全微分法元件位置优化方案对给水温度等运行参数变化的稳定性。