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Search Results: 1 - 10 of 310474 matches for " <br>汪永威 "
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Hardware implementation of branch predictor in 32 bit RISC microprocessor
32位RISC微处理器中分支预测器的硬件实现*

WANG Yong-wei,FAN Xiao-ya,HUANG Xiao-ping,<br>,樊晓桠,黄小平
计算机应用研究 , 2009,
Abstract: This paper proposed a new dynamic branch predictor based on Bi-Mode predictor and branch path history, and then implemented it by FPGA based on Longtium R2,a RISC microprocessor designed by NWPU AMEC. The proposed predictor gives good prediction accuracy for conditional branches, with small latency and low power consumption.
Experimental study of bio-oil gasification with steam
生物油水蒸气气化实验研究

WANG Yong-wei,WANG Ze,SONG Wen-li,LIN Wei-gang,<br>,王泽,宋文立,林伟刚
燃料化学学报 , 2012,
Abstract: The experiment on the non-catalytic steam gasification of bio-oil was carried out in a lab-scale fixed bed reactor.The influence of operating parameters such as the temperature and the mol ratio of steam to carbon(S/C) on the gas yield and composition was investigated.The results show that increasing temperature can enhance the conversion of bio-oil to syngas;the carbon conversion of bio-oil can be as high as 97.8% at 1 200 ℃,and the proportion of effective gas component(H2+CO) in the product gas is nearly 77% with a mol ratio of H2/CO=1.19.The mol ratio of H2/CO increases with an increase of S/C mol ratio,and reaches up to 3.69 at S/C=4.However,the addition of steam does not favor the increase of the composition of effective syngas.The product gas from steam gasification has a medium heating value.
新疆红山铜金矿床基于地面高光谱遥感找矿模型构建
Prospecting Model Based on Ground Hyperspectral Remote Sensing Data of Hongshan Cu-Au Ore Deposit in Xinjiang

王瑞军,李名松,,牛海,,李存金<br>WANG Ruijun,LI Mingsong,WANG Bing,NIU Haiwei,SUN Yongbin,LI Cunjin
- , 2016,
Abstract: 摘要: 选择新疆红山铜金矿床,使用美国ASD公司的FieldSpec Pro FR地面波谱仪,在铜金矿区及外围地段分别对各地质体的英安岩、蚀变英安岩、花岗岩、花岗闪长岩、流纹斑岩、片理化带、矿体等开展地面波谱测试,获取各地质体的波谱曲线,综合剖析各吸收峰的波谱特征和蚀变矿物的反映特征,同时结合镜下鉴定和X射线衍射分析结果,研究和总结红山铜金矿区从矿体、矿化体、近矿围岩、外围蚀变围岩至外围正常围岩的地面高光谱蚀变矿物和蚀变矿物组合分布特征,结合矿床的地质矿产特征和地面围岩蚀变特征,形成地面高光谱蚀变矿物组合分布图,构建红山铜金矿床基于地面高光谱遥感找矿模型,为后期开展航空高光谱遥感调查、高光谱蚀变矿物信息提取和找矿预测提供地面高光谱波谱数据支持和典型矿床模型基础。
Abstract: Using FieldSpec Pro FR ground spectroscopy of American ASD Company, the authors carried out ground spectrum measurement for different geological bodies such as dacite,altered dacite,granite,granodiorite,rhyolite porphyry, schistosity belt and ore body respectively in the Hongshan Cu-Au deposit.The spectrum curves of geological bodies were achieved; and then the characteristics of absorption peak of spectrum and altered minerals were generally analyzed. According to the analysis results of microscopic identification and X-ray diffraction, this paper summarized the hyperspectral distribution characteristics of altered minerals and the mineral assemblage which are distributed in ore body, mineralized body, wall rock near ore body, altered wall rock and non-altered wall rock in the Hongshan Cu ore deposit. Based on the characteristics of mineral geology and ground wall rock alteration, the hyperspectral map of altered mineral assemblage formed and the prospecting model based on ground hyperspectral remote sensing data were constructed. The research provides hyperspectral data and typical deposit model for the further aerial survey, information extraction of altered minerals, and prediction for ore deposits
生物油水蒸气气化实验研究
,王泽,宋文立,林伟刚
燃料化学学报 , 2012,
Abstract: ?利用固定床反应器对生物油的水蒸气非催化气化性能进行了实验研究,考察了温度和水蒸气的加入量对气化过程的影响,对气化所得粗合成气的组成分布进行了分析。结果表明,升高温度有利于生物油向合成气转化,1200℃时,生物油的碳转化率可达97.8%,合成气有效成分(h2+co)的产率可达77%,其中h2/co摩尔比为1.19;水蒸气的加入可以提高合成气中的h2/co摩尔比,当s/c(水碳比)=4时,合成气中的h2/co摩尔比可达3.69,与此同时,水蒸气的加入不利于合成气有效成分产率的提高;生物油气化所得气体为中热值气体。
Design and Implementation of a Data Conversion Tool Based on the Heterogeneous Data Source
异构数据源数据转换工具的设计与实现

Duan Yongwei Qin Feng,<br>段,秦峰
现代图书情报技术 , 2004,
Abstract: In this article,design methods and implementation techniques are discussed to realize the data exchange and transformation among information systems based on all kinds of database. The data conversion tool with better flexibility,extensibili ty and capability of error handling has efficiently realized the transforming and shari ng of heterogeneous data source.
东海、黄海、长江口及胶州湾水体中氟含量
孙秉一,吏致丽,,
海洋与湖沼 , 1984,
Abstract:
意识的计算神经科学研究
云九,唐孝,吴建,周昌乐
科学通报 , 2001,
Abstract: 根据意识的心理学、神经生理学研究和一些病例报告,从计算神经科学的角度,提出意识神经活动的特点,特别是意识活动的适度性特点,是文献中未见的.认为意识有相应的神经相关物作为活动的基础,给出意识活动的一种计算神经科学的假设,在这个假设的基础上,提出一个意识活动的理论测度,这种理论测度既可根据意识活动的能量消耗来取得,又可从神经生理学方法(40Hz同步振荡)来估算.这种测度可很好地反映意识的流动性和文中提到的适度性特点,并对一些意识状态的特例进行推算,讨论了这种测度的意义.
煤与生物油的成浆性能研究
,王泽,宋文立,林伟刚,吴文龙
燃料化学学报 , 2013,
Abstract: ?利用不同煤种的煤和生物油制备了不同浓度的生物油煤浆,考察了生物油煤浆的成浆浓度、表观黏度、流变特性和稳定性。结果表明,生物油煤浆是具有一定屈服应力的非牛顿流体,其流变特性可用宾汉姆方程来描述;生物油煤浆的屈服应力和表观黏度都随着固体浓度的增加而增大;随着剪切速率的增加,生物油煤浆的表观黏度减小;四种煤中,无烟煤的成浆浓度最高,可达42%,其含碳量高达49%,相当于同种煤制成的74%的水煤浆含量。烟煤次之,褐煤最低;生物油与煤粉之间能够形成絮凝性的大分子网络结构,使得生物油煤浆存在屈服应力并能够保持良好的静态稳定性,4.0~5.0d天没有软沉淀产生,数月没有硬沉淀产生。
A STUDY ON THE MOLECULAR ACCESSIBILITY OF TAKA-AMYLASE A
高峰淀粉酶的分子可及性的研究

Wang Dawei,<br>大伟,林大,张学忠,吴晓霞,丁忠田
生物物理学报 , 1995,
Abstract: In this paper, the molecular accessibility of Taka-Amylase A (TAA) was calculated and analyzed on the basis of its crystal structure data. Some useful information, such as the distribution of polar and non-polar amino acids in surface and core of the molecules, the comformation and function of the catalytic cleft, the folding topology of the C-terminal domain, were obtained. The result of the accesibility analysis of the residues in the active center tallied with the enzyme-substrated complex model.
The Extended Hough Transform and its Applications in Active Vision Field
扩展Hough变换及其在主动视觉中的应用

Wang Wei,Hu Zhanyi,Ma Songde,<br>,胡占义,马颂德
自动化学报 , 1998,
Abstract: In this paper, the extended Hough transform (EHT) is investigated. It is shown that it is impossible to give the necessary conditions of being an EHT. Two sufficient conditions, however, are introduced. In addition, the EHT is used to simulate a human vision system for the study of gaze control, a problem actively pursued in the active vision field currently.
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