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1.
颜呐 《广东工业大学高等工程教育研究》2007,7(2):78-80
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。 相似文献
2.
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) 相似文献
3.
Pitt William R.; Goodfellow Julia M. 《Protein engineering, design & selection : PEDS》1991,4(5):531-537
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. 相似文献
4.
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。 相似文献
5.
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. 相似文献
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7.
《Measurement》2016
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. 相似文献
8.
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。 相似文献
9.
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. 相似文献
10.