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A general communication performance evaluation model based on routing path decomposition

Journal of Zhejiang University-science C(Computers and Electronics) 2011年第7期12卷 561-573页

作者： Ai-lian CHENG 1,Yun PAN 1,2.Xiao-lang YAN 2.Ruo-hong HUAN 3 (1 department of Information science and Electronic Engineering,Zhejiang University,Hangzhou 31002.,{2.) (2.Institute of VLSI Design,Zhejiang University,Hangzhou 31002.,{2.) (3 College of Computer science and technology,Zhejiang University of technology,Hangzhou 31002.,{2.) department of Information science and Electronic Engineering Zhejiang University Hangzhou China Institute of VLSI Design Zhejiang University Hangzhou China College of Computer science and technology Zhejiang University of Technology Hangzhou China

The network-on-chip (NoC) architecture is a main factor affecting the system performance of complicated multi-processor systems-on-chips (MPSoCs).To evaluate the effects of the NoC architectures on communication efficiency,several kinds of techniques have been developed,including various simulators and analytical *** simulators are accurate but time consuming,especially in large space explorations of diverse network configurations;in contrast,the analytical models are fast and flexible,providing alternative methods for performance *** this paper,we propose a general analytical model to esti-mate the communication performance for arbitrary NoCs with wormhole routing and virtual channel flow *** resolve the inherent dependency of successive links occupied by one packet in wormhole routing,we propose the routing path decomposition approach to generating a series of ordered link *** we use the traditional queuing system to derive the fine-grained transmission latency for each network *** to our experiments,the proposed analytical model provides a good approximation of the average packet latency to the simulation results,and estimates the network throughput precisely under various NoC configurations and ***,the analytical model runs about 10 5 times faster than the cycle-accurate NoC *** applications of the model including bottleneck detection and virtual channel allocation are also presented.

关键词： Analytical model Communication performance Network-on-chip (NoC) Queuing system Routing path decom-position Virtual channel

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Re-Os isotopic composition of the Dongling ⅢCD iron meteorite

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Chinese science Bulletin 2001年第6期46卷 518-520页

作者： SUN Weidong, DU Andao, YANG Gang, XIE Zhi & CHEN JiangfengDeparlmenl of earth and space {2., Laboratory tor Chemical Geodynamics. University of science and technology of china, hefei 2.002.. china:Institute of Rock and Mineral Analysis, Chinese Academy of Geological {2.. Beijing 100037, china department of earth and {2. sciences Laboratory for Chemical Geodynamics University of Science and Technology of China Hefei China Institute of Rock and Mineral Analysis Chinese Academy of Geological Sciences Beijing China

Re, Os concentrations and Os isotopic compositions of the Dongling ⅢCD iron meteorite were determined by N-TIMS technique. The result was compared with that of the other irons and chondrites. The Re and Os concentrations of the Dongling iron meteorite were plotted on the trends of the group ⅢA and ⅣA irons. The Pt-Os relation of the Dongling iron meteorite is similar to that of the group ⅡA irons. That suggests a higher fractionation for the Dongling iron meteorite.

关键词： Dongling iron meteorite Re-Os isotopes N-TIMS.

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MONOTONE COUPLING AND STOCHASTIC ORDERING OF ORDER STATISTICS

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Systems science and Mathematical sciences 1995年第3期8卷 209-214页

作者： HU Taizhong(department of Mathematics, University of science and {2. of china, hefei 2.002., china) 中国科学技术大学数学系安徽合肥

ＭＯＮＯＴＯＮＥＣＯＵＰＬＩＮＧＡＮＤＳＴＯＣＨＡＳＴＩＣＯＲＤＥＲＩＮＧＯＦＯＲＤＥＲＳＴＡＴＩＳＴＩＣＳ￥ＨＵＴａｉｚｈｏｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓ，ＵｎｉｖｅｒｓｉｔｙｏｆＳｃｉｅｎｃ... 详细信息

ＭＯＮＯＴＯＮＥＣＯＵＰＬＩＮＧＡＮＤＳＴＯＣＨＡＳＴＩＣＯＲＤＥＲＩＮＧＯＦＯＲＤＥＲＳＴＡＴＩＳＴＩＣＳ￥ＨＵＴａｉｚｈｏｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓ，ＵｎｉｖｅｒｓｉｔｙｏｆＳｃｉｅｎｃｅａｎｄＴｅｃｈｎｏｌｏｇｙｏｆＣ...

关键词： Monotone coupling order statistics epidemic.

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Study of Product Quality Information and Construction of Its Decision-Making Support System and Measures to Improve People's Quality Concept

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厦门大学学报（自然科学版） 2002年第S1期41卷 234-235页

作者： RUAN Jin-yuan 1, SUN Shu-tao 2. YU Xin-qi 2. RUAN Xin 3 (1. Ordance Institute of General Equipment department, Shijiazhuang 05 0000, china 2. Graduate School of Chinese Academic of {2., Beijing 100042. china 3. East china University of {2. and technology, Shanghai 2.02.2. china 4. Meterology Bureau of Hebei Province, Shijiazhuang 05002., china)

The 2.th century is a "quality century". Facing the s evere challenge about quality, all the developed industry countries attach impor tance to the research and education about quality project. With the deepening of the reform of china and it’s joining to WTO, many industries and enterprises wi ll be confronted with severe challenge while being offered the opportunity to wa lk up to the world. The arrival of knowledge economy and web time has provided t he space for the innovation on enterprise management. It has also provided new m ethod and model for enterprise management, that is online management based on th e internet. The online management use an enterprise model including the goal of the enterprise and the scheme to carry out it to represent the whole operational of all the work. The online management is constructed on the integration of exp ert system, database, software and other technical models. How to scientifically manage the entire system of product, precisely master the condition of quantity and quality and analyze the rules of the change of produc t quality in order to carry out the overall control of quality, guarantee the go od condition of product as well as improve product quality and prolong it’s se rvice life was discussed in this thesis. Based on the above research the thesis also discussed how to develop the study on product quality information and const ruct it’s decision making support system. The concrete measures to improve peopl e’s concept of quality are also raised. Based on the type analysis, scientific management of product quality information should start from dynamic information of quality, instruction information as we ll as the information about the use, maintain, management and conservation of pr oduct, and induce them and further propose a design scheme of feedback system on product quality information, and then set up the blueprint of the information s ystem of product quality. This thesis included 7 chapters:*** type of qua

关键词： product guality information decision-making sup port system of management of guality information people’s guality concept

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Kinetics of hydrocarbon generation for Well Yingnan 2.gas reservoir,Tarim Basin,china

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science china {2. sciences 2008年第S1期51卷 107-114页

作者： XIAO ZhongYao 1,2.,XIAO XianMing 3 ,MA DeMing 4 ,LU YuHong 2.&YANG ChaoShi 2.1 china University of Mining&technology,Beijing 100083,{2. 2.Research Institutes of Exploration and Development,Tarim Oilfield Company,Petro{2.,Korla 841000,{2. 3 Guangzhou Institutes of Geochemistry,Chinese Academy of sciences,Guangzhou 510640,{2. 4 department of Synthetic Physical-Chemical Prospecting,BGP,Zhuozhou 072.56,{2. china University of Mining & technology Beijing China Research Institutes of Exploration and Development Tarim Oilfield Company PetroChina Korla China Guangzhou Institutes of Geochemistry Chinese Academy of Sciences Guangzhou China department of Synthetic Physical-Chemical Prospecting BGP Zhuozhou China

Well Yingnan 2.an important exploratory well in the east of Tarim Basin,yields high commercial oil and gas flow in *** gas components and carbon isotopic composition indicate that it belongs to sapropel type *** this region presents many suits of hydrocarbon source rocks,there are some controversies that natural gases were generated from kerogen gas or crude oil cracking gas at *** using the kinetics of hydrocarbon generation and carbon isotope,natural gas of Well Yingnan 2.is composed mainly of crude oil cracking gas,about 72.,it is generated from secondary kerogen gas of Cambrian-Lower Ordovician source rock and crude oil cracking gas of Mid-Upper Ordovician oil *** main oil and gas filling time is 65 Ma later in the Jurassic gas reservoir of Well Yingnan 2.so the gas reservoir belongs to late accumulation and continuous filling type.

关键词： kinetic migration and accumulation process crude oil cracking gas Well Yingnan 2 Tarim Basin

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Electron microscopy study of the sakhaite from endogenous borate deposit in Hunan, china

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science china {2. sciences 2004年第3期47卷 232-238页

作者： LIU Xiangwen1,2. YANG Guangming2. ZOU Huamin3, QU Jing1 & ZHAO Wenxia4 1. Graduate School, china University of Geosciences, Wuhan 430074, china 2. Test Center, china University of Geosciences, Wuhan 430074, china 3. Physics and technology College, Wuhan University, Wuhan 430072. china 4. Test Center, Zhongshan University, Guangzhou 5102.5, china Graduate School China University of Geosciences Wuhan 430074 China Test Center China University of Geosciences Wuhan 430074 China Physics and technology College Wuhan University Wuhan 430072 China Test Center Zhongshan University Guangzhou 510275 China

Sakhaite specimens from an endogenous borate deposit in Hunan Province, china have been studied in detail by means of transmission electron microscopy (TEM). The selected area electron diffraction (SAED) patterns obtained with different crystal zone axes show that the crystal system is cubic, with a = 1.463 nm. The convergent beam electron diffraction (CBED) patterns indicate that the point group and space group of sakhaite is m3m and Fd3m, respec-tively. The space group of synthetic sakhaite determined by Chichagov (1974) is F4132. The possible reasons why the space groups of the natural and the synthetic sakhaites are different are discussed.

关键词： sakhaite, space group, convergent beam electron diffraction (CBED).

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Transitivity, mixing and chaos for a class of set-valued mappings

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science china Mathematics 2006年第1期49卷 1-8页

作者： LIAO Gongfu, WANG Lidong & ZHANG Yucheng Institute of Mathematics, Jilin University, Changchun 130012. china Institute of Nonlinear Information technology, Dalian Nations University, Dalian 116600, china department of Mathematics, University of science and technology of china, hefei 2.002., china Institute of Mathematics Jilin University Changchun China Institute of Nonlinear Information technology Dalian Nations University Dalian China department of Mathematics University of Science and Technology of China Hefei China

Consider the continuous map f : x → X and the continuous map f of K,(X) into itself induced by f, where X is a metric space and K(X) the space of all non-empty compact subsets of x endowed with the Hausdorff metric. According to the questions whether the chaoticity of f implies the chaoticity of f posed by Roman-Flores and when the chaoticity of f implies the chaoticity of f posed by Fedeli, we investigate the relations between f and f in the related dynamical properties such as transitivity, weakly mixing and mixing, etc. And by using the obtained results, we give the satisfied answers to Roman-Flores's question and Fedeli's question.

关键词： set-valued mapping, transitivity, weak mixing, mixing, chaos.

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Geochemistry of Trace and Rare earth Elements in Red Soils from the Dongting Lake Area and Its Environmental Significance

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Pedosphere 2009年第5期19卷 615-622页

作者： MAO Long-Jiang MO Duo-Wen YANG Jing-Hong SHI Chen-Xi College of Atmospheric science Nanjing University of Information Science & Technology Nanjing 210044 (China) College of Urban and Environmental sciences Peking University Beijing 100871 (China) department of earth {2. Nanjing University Nanjing 210093 (China)

Trace element(TE) and rare earth element(REE) contents in red soils from the Dongting Lake area of china were determined to understanding the provenance and weathering characteristics of the red *** results showed similar REE distribution patterns among red soils from the Dongting Lake area,Xiashu loess from Zhenjiang,loess and Pliocene red soil from the Loess *** patterns implied a similar provenance from dust-storms,except for red soil R5 which formed by bedrock weathering and had significant light REE(LREE) enrichment and heavy REE(HREE) depletion due to longer weathering periods and higher intensity of *** element,especially the Rb/Sr and Li/Ba ratios,and REE,especially the LREE/HREE ratio and δEu could trace weathering *** Rb/Sr,Li/Ba,and LREE/HREE ratios and negative Eu anomalies were present in the red soils from the Dongting Lake *** weathering intensity was in the decreasing order of R5 in the Dongting Lake area > red soils from the Dongting Lake area(including reticulate red soil,weak reticulate red soil,and homogeneous red soil formed by dust storms) > Xiashu loess from Zhenjiang > loess-paleosol and Pliocene red soil from the Loess *** in the TE and REE contents of soil could be effectively used to study the provenance and the weathering intensity.

关键词： Hunan Province provenance sedimentary processes weathering intensity

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Monitoring of rice crop using ENVISAT ASAR data

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science china {2. sciences 2006年第7期49卷 755-763页

作者： DONG Yanfang1, 2. SUN Guoqing1,3 & PANG Yong4 1. State Key Laboratory of Remote Sensing science, Institute of Remote Sensing Applications, Chinese Academy of sciences, Beijing 100101,{2. 2. Graduate University of Chinese Academy of sciences, Beijing 100039,{2. 3. department of Geography, University of Maryland, College Park, MD 2.742. USA 4. Forest Remote Sensing Lab, Research Institute of Forest Resource and Information technology, Chinese Academy of For-estry, Beijing 100091,{2. State Key Laboratory of Remote Sensing science Institute of Remote Sensing Applications Chinese Academy of Sciences Beijing China Graduate University of Chinese Academy of sciences Beijing China department of Geography University of Maryland College Park USA Forest Remote Sensing Lab Research Institute of Forest Resource and Information Technology Chinese Academy of Forestry Beijing China

Because of the cloudy conditions during the rice growth period, rice is one of the agri-cultural crops most suited to monitoring with the SAR instruments. Backscatter response measured by SAR is correlated with rice conditions, including height, density, biomass and structure, which are variable at different growing stages. In this paper, multi-date ENVISAT ASAR Alternating Polarization Mode (APMode) imageries were acquired during the rice crop growing cycle. At the same time, the rice parameters were measured in field. A continuous canopy model was used to compute the back-scattering from rice fields during the growth cycle, and the relationship between rice parameters and radar backscattering coefficients from both ASAR and modeling was analyzed. The effects of polari-zation, incidence angle and polarization on radar backscattering coefficients were analyzed. It was found that simulated radar backscatter has similar trends as ASAR data. This will be meaningful for the further research of rice parameters estimation from ASAR data. Different features show signifi-cantly different signatures in ASAR images and they follow some certain laws, so rice area can be accurately mapped by using multi-temporal SAR images, then rice yield can be estimated.

关键词： rice, ASAR, radar backscattering, model.

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On linking climate to Chinese dynastic change: Spatial and temporal variations of monsoonal rain

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Chinese science Bulletin 2010年第1期55卷 77-83页

作者： ZHANG DeEr1, LI Hong-Chun2.3, KU Teh-Lung2.4 & LU LongHua5 1 National Climate Center, Beijing 100081, china 2.department of {2. sciences & Research Center of Ocean Environment and technology, Cheng-Kung University, Tainan 70101, Taiwan, china 3 School of Geographical sciences, Southwest University of china, Chongqing 400715, china 4 department of {2. sciences, University of Southern California, Los Angeles, CA 90089, USA 5 Chinese Academy of Meteorological sciences, Beijing 100081, china National Climate Center Beijing China department of earth {2. & Research Center of Ocean Environment and technology Cheng-Kung University Tainan Taiwan China School of Geographical sciences Southwest University of China Chongqing China department of earth {2. University of Southern California Los Angeles USA Chinese Academy of Meteorological sciences Beijing China

The causal correlation or linkage between the East Asian Monsoon (EAM) intensity and rise/fall of Chinese dynasties recently proposed by high-resolution paleoclimate reconstructions is examined in detail. Aside from many exceptions to the correlation, both instrumental and historical climate records show strong spatial variations of rainfall on annual-to-decadal scales over eastern china. The relationship between rainfall and EAM intensity also exhibits regional disparity. These observations suggest: (1) Tak-ing paleo-proxy records from a single locality in eastern china to imply changes in drought/wetness as to affect the cultural and political history of china is fraught with uncertainty. (2. On annual-to-decadal scales, the thesis that δ18O in speleothems can be used as a proxy for the EAM strength lacks empirical underpinnings.

关键词：古气候重建东亚季风强降雨时空变化中国东部地区连接 EAM 高分辨率

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