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基于FPGA的计算机系统实验教学平台的设计与实现

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实验技术与管理 2009年第9期26卷 77-80页

作者：李志平杨西珊张俊方王莹首都师范大学信息工程学院

介绍了基于FPGA实现的计算机系统设计实验教学平台。系统将CPU设计及外部设备驱动等实验系列化,从指令系统设计、运算与控制部件的软核实现到系统输入输出的交互,形成了一个较为完整的实验体系。同时该平台也适用于EDA、数字系统设计等... 详细信息

介绍了基于FPGA实现的计算机系统设计实验教学平台。系统将CPU设计及外部设备驱动等实验系列化,从指令系统设计、运算与控制部件的软核实现到系统输入输出的交互,形成了一个较为完整的实验体系。同时该平台也适用于EDA、数字系统设计等课程的实验教学需求。通过计算机组成与CPU设计课程实验教学环节的实施,显著提高了课程的教学效果。

关键词： FPGA CPU设计实验教学 EDA

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论Hamilton作用量的极值性质

黄淮学刊（自然科学版） 1997年第1期13卷 1-19页

作者：陈滨北京大学力学与工程科学系北京100871

Ｈａｍｉｌｔｏｎ作用量极值性质问题的解决是正确应用Ｈａｍｉｌｔｏｎ原理解决理论和应用课题的基础之一．本文给出了Ｈａｍｉｌｔｏｎ作用量极值问题研究全面而深入的阐述．

关键词：驻值极值 Hamilton作用量 Hamilton原理

Combination of CTLA4.FasL gene transfer and allogeneic bone marrow transplantation led to durable macrochimerism and donor-specific tolerance in mouse model

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science Bulletin 2005年第20期 57-63页

作者： FENG Yougang1, WANG Guangming2, HAO Jie2, LI Ailing2, YUAN Guohong2, LI Chong2, ZENG Fuqing1 & XIE Shusheng2 1. Institute of Urology, Union Hospital, Tongji Medical college, Huazhong university of science and Technology, Wuhan 4.0022, china 2. Department of Immunology, Peking university Health science Center, beijing 100083, china

Mixed hemopoietic chimerism is capable of inducing donor specific tolerance, thus eliminating the chronic immunosuppressive therapy following organ trans- plantation. As yet no safe and effective tolerance protocol is available for clinical implementation. Here we describe an alternative nonmyeloablative based strategy of using a single injection of recombination adenovirus vector encoding CTLA4.FasL fusing gene and donor bone marrow cells to promote durable mixed macrochimerism (>20% on 14. d). Chimeras exhibited robust donor-specific tolerance, as evi- denced by acceptance of fully allogeneic skin grafts (the mean survival time (MST)>200 d) and rejection of third- party skin grafts in a normal manner (MST4.after transplantation, suggesting that CTLA4.FasL led to rapid systemic peripheral tolerance to facilitate the bone marrow engraftment, while both HTLp and CTLp remained at low level only in recipient mice with mixed chimerism on day 14. after transplantation, demon- strating that long-term skin grafts tolerance was associated with stable mixed chimerism, and central deletion of donor specific T cell may be the main mechanism for tolerance maintenance.

关键词： transplantation tolerance mixed macrochimerism CTLA4.FasL gene transfer skin transplantation.

Dynamic Structural Transformations of Coordination Assemblies upon External Stimuli

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Dynamic Structural Transformations of Coordination Assemblie...

中国化学会第六届全国结构化学学术会议

作者： Miao Du college of Chemistry,Tianjin normal university,Tianjin,300387

＜正＞Crystal engineering is currently one of the most flourishing themes in the field of crystallographic chemistry,in which the pivotal strategy is to deliberately manipulate different assembled elements to achieve the target crystalline materials with appealing aesthetic structures and useful *** aspect to coordination assemblies,the supramolecular architectures are mainly dominated by the nature of

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The Actual Diagnosis and Rational Appeal of college Network Courses

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The Actual Diagnosis and Rational Appeal of College Network ...

2012 National Conference on Information Technology and Computer science

作者： Pan Jixin Modern Educational Technology Center North china Institute of science and Technology Yanjiao,china Cheng Lulu college of Foreign Languages Shenyang {4. university Liaoning,china Guo Fuping Modern Educational Technology Center North china Institute of science and Technology Yanjiao,china Liu Liping Editorial Department of Journal North china Institute of science and Technology Yanjiao,china

Nowadays,people have wrong conclusions and unreasonable concepts about the essential attribute in college network *** can be illustrated by the following aspects:such as in the value,the fixed position is not conformity with expectation;in teaching,the current teaching situation is deviated from teaching *** a result,people lead to a situation where their speculation is deviated from expectancy,and construction has little to do with management,furthermore input and output ***,they cannot keep out of this *** the author makes an attempt to thinking deeply the critical issues in order to change the cognitive deviation and error orientation of college network courses,and makes the college network courses in accordance with the regularity and aim,such as accidental and inevitable,quantity and quality,periphery and core,decoration and high-quality goods.

关键词： college network courses diagnosis appeal

科尔沁沙地林地适宜性评价——以科尔沁左翼后旗为例

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水土保持研究 2011年第6期18卷 236-239,244页

作者：李燕乌兰图雅内蒙古师范大学地理科学学院呼和浩特010022

研究基于2009年遥感影像数据和反映该研究区自然、社会、经济方面的资料,通过3S技术、数学统计方法及文献资料法,并多次叠加与对比分析,得到研究区林地适宜性评价结果,并进一步将林地适宜性评价结果与2009年林业现状进行对比分析。结果... 详细信息

研究基于2009年遥感影像数据和反映该研究区自然、社会、经济方面的资料,通过3S技术、数学统计方法及文献资料法,并多次叠加与对比分析,得到研究区林地适宜性评价结果,并进一步将林地适宜性评价结果与2009年林业现状进行对比分析。结果表明:高度适宜林地面积为287 233.56hm2,中度适宜林地所占面积比重最大,达4.4.501.09hm2,勉强适宜林地面积为307 4.7.94.m2,不适宜林地面积为10 523.10hm2。因此,今后还需要加大力度,调整林地利用结构的面积为295 4.6.20hm2。

关键词：林地适宜性评价科尔沁沙地

Research on fluorescence spectra of cancer blood

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Research on fluorescence spectra of cancer blood

2007亚洲光电子会议保健与生物医学光学分会场

作者： Liu Kunxiang He Wenliang Zhao wenyan Liu Ying college of Physics & Electronic Engineering Xuzhou normal university china 221116

The fluorescence spectral characteristic of tumor blood was studied by laser-induced fluorescence technology, and compared with the fluorescence spectra of the same type healthy mice blood, the differences between them are distinct. When the whole blood solutions were induced by 4.7nm laser, they radiate fluorescence band from 4.0nm to 750 nm, which spectral peak located at 620nm. In high concentration solutions （blood concentration is higher than 4.）, the fluorescence intensity are lower than normal blood, but in those low concentration solutions （blood concentration is lower than 2%） the fluorescence intensity of the tumor blood are higher than the normal ones. It is analyzed that the change of the fluorescence characteristic between the tumor blood and the normal is caused by the concentration difference of the tumor identification—porphyrin. The experimental results showed that the obvious difference of the fluorescence spectral characteristic between the forepart tumor and normal blood can offer some value assistance to clinical diagnosis on cancer.

关键词： fluorescence spectrum tumor porphyrin whole blood

权利时代的经纬——自然权利学说、社会契约论与古典自由主义的论证方式

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天津师范大学学报（社会科学版） 2008年第4期28卷 6-11页

作者：刘训练天津师范大学政治与行政学院天津300387

自然法学说与社会契约论是西方政治文化传统中两个不同的理论模式,近代以后,二者结合到一起形成古典自然法学派,这种结合具有逻辑的必然性和历史的合理性;同时,基于与自由主义在理论特征方面的内在契合,它们又共同构成了17-18世纪西方... 详细信息

自然法学说与社会契约论是西方政治文化传统中两个不同的理论模式,近代以后,二者结合到一起形成古典自然法学派,这种结合具有逻辑的必然性和历史的合理性;同时,基于与自由主义在理论特征方面的内在契合,它们又共同构成了17-18世纪西方古典自由主义的论证方式,并一直影响到自由主义以后的发展。厘清三者之间的复杂关系,有助于深化我们对西方政治文化传统的认识。

关键词：自然法自然权利学说社会契约论古典自由主义

Keep Region for Constructing LOD of Terrain Regular Mesh

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Keep Region for Constructing LOD of Terrain Regular Mesh

The 12th International Multimedia Modelling Conference(MMM2006)

作者： Chen Guojun *+ Zhao Qinping * YinYuan * * School of Computer science and Engineering BEIHANG university + college of Computer and Communication Engineering china university of Petroleum

We present an improved ROAM algorithm for keeping region when rendering *** the region broken problem of ROAM algorithm in rendering terrain,a method of keeping region in rendering terrain with enhancing the triangle splitting condition is *** concept of optimum triangulation for region is used to set the splitting vertex and its parent *** rending algorithm sets status of the active vertex according to the view direction and the distance between viewpoint and region,and produces the terrain region’s level of *** results of experiments show that our algorithm with LOD has a satisfactory performance in keeping region during rending terrain.

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