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Network layered priority mapping theory

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Science china(Information Sciences) 2010年第9期53卷 1713-1726页

作者： YANG Dong*,ZHANG HongKe,SONG Fei&LI ShiYong national engineering Laboratory for Next Generation Internet Interconnection Devices, School of Electronics and Information engineering,Beijing Jiaotong university,Beijing 100044,china 1. national engineering Laboratory for Next Generation Internet Interconnection Devices School of Electronics and Information Engineering Beijing Jiaotong University Beijing 100044 China

In the early days of the Internet layered design,the information between layers did not exchange in large amount *** the rapid growth of the Internet,the emergence of many technologies such as service data partition,multi-connection and multi-path has made it possible to frequently exchange complex information between *** regard to these changes,this paper introduces "network layered priority mapping(NLPM)" for future Internet *** NLPM aims to maximize the satisfaction of the Internet *** NLPM is designed to differentiate priority of the information on different layers and integrate the information using priority *** NLPM,network services can be delivered more efficiently;network utilization such as the utilization of connection,path and channel can also be *** analysis,NS simulation and prototype implementation have proved the efficiency of NLPM.

关键词： future Internet layered priority mapping

Image stylization with enhanced structure on GPU

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Science china(Information Sciences) 2012年第5期55卷 1093-1105页

作者： LI Ping 1,SUN HanQiu 1,SHENG Bin 1,2.& SHEN JianBing 3 1 Department of Computer Science and engineering,The Chinese university of Hong Kong,Hong Kong,{2. 2.Department of Computer Science and engineering,Shanghai Jiao Tong university,Shanghai 2.02.0,{2. 3 School of Computer Science and Technology,Beijing Institute of Technology,Beijing 100081,{2. 1. Department of Computer Science and engineering The Chinese University of Hong Kong Hong Kong China2. Department of Computer Science and Engineering Shanghai Jiao Tong University Shanghai 200240 China3. School of Computer Science and Technology Beijing Institute of Technology Beijing 100081 China

This paper presents a graphics processing unit (GPU) based stylization approach that preserves the fine structure between the original and the stylized images using gradient *** abstraction and painterly stylization methods focused on contrast manipulation only,and thus the detailed salient structures of the input images are always destroyed when performing the current stylization techniques because of limitations like unavoidable salience information loss caused by contrast *** propose an image structure map to naturally model the fine structure existing in the original ***-based structure tangent generation and tangent-guided image morphology are used to construct the structure *** image structure map,unlike an edge map,not only systematically models the boundary information within the imagery but also accentuates the underlying inner structure detail for further *** facilitate the final stylization via parallel bilateral grid and structure-aware stylizing optimization on a GPU-CUDA platform in real *** multiple experiments,the proposed method consistently demonstrates efficient and high quality image stylization performance.

关键词： image stylization non-photorealistic rendering real-time processing GPU image abstraction

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功能性木质炭素新材料的研究与开发

新型炭材料 2004年第2期19卷 151-157页

作者：黄彪高尚愚福建农林大学材料工程学院福建福州350002 南京林业大学化工学院江苏南京210037

　木质炭化物的高效开发利用,对解决废弃物资源化、环保、生态环境等问题将起到十分积极的作用。通过述评功能性木质炭素新材料的国内外研究和开发进展,涉及到木质炭素材料吸着特性的研究概况、木质炭化物在环境净化方面的应用、木质系... 详细信息

　木质炭化物的高效开发利用,对解决废弃物资源化、环保、生态环境等问题将起到十分积极的作用。通过述评功能性木质炭素新材料的国内外研究和开发进展,涉及到木质炭素材料吸着特性的研究概况、木质炭化物在环境净化方面的应用、木质系炭素新材料的研发、性能和应用等方面。着重介绍了一些木质系炭素新材料:木陶瓷、木质吸油材料、高电导性材料、保健材料、土壤改良材料、二氧化钛/炭复合材料、烧结炭等。同时对其副产物木醋液的应用领域,如在食品添加剂、消臭剂、医药、农业等方面的应用也做了一些梗概。由此可看出:木质炭化物新利用,高功能化的研发可使古老的木炭衍化为新颖的功能性材料,从而产生更高的经济、社会和生态效益。

关键词：功能性木质炭素木质炭化物吸着特性环境净化功能性材料

Land use structural optimization of Lilin based on GMOP-ESV

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中国有色金属学会会刊：英文版 2011年第S3期21卷 738-742页

作者： ZHANG He-bing, ZHANG Xiao-hu School of Surveying & Land Information engineering, Henan Polytechnic university, Jiaozuo 454000, {2. School of Surveying & Land Information engineering Henan Polytechnic University Jiaozuo 454000 China

Land use structural optimization is an effective approach to realize land sustainable utilization and allocate limited land resource rationally. Grey multiple objectives programming (GMOP) model based on china terrestrial ecosystem service value was constructed and applied to Lilin town. The result shows that GMOP model has more practical applicability and takes ecologic, social and comprehensive benefit into consideration. There are three programs after optimization. Program Ⅰ is comprehensive improvement and constructing ecological economy type, program Ⅱ is gross cultivated land dynamic balance type and program Ⅲ is compromise type. There are still problems in programs Ⅱ and Ⅲ, such as distribution in disorder, land left unused or abandoned. Based on the benefits above, Program Ⅰ>Program Ⅲ> Program Ⅱ. Program Ⅰ is the optimal case. Its comprehensive benefit is 8.432.8×107 RMB yuan/a.

关键词： land use structure optimization grey multiple objective programming ecosystem service value Lilin town

Towards a degradation-based mechanism for adaptive overload control

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Science china(Information Sciences) 2012年第12期55卷 2708-2722页

作者： WANG ZiYou 1,2.ZHOU MingHui 1,2.& MEI Hong 1,2.1 Software Institute,School of Electronics engineering and Computer Science,Peking university,Beijing 100871,{2. 2.Key Laboratory of High Confidence Software Technologies(Peking university),Ministry of Education,Beijing 100871,{2. 1. Software Institute School of Electronics Engineering and Computer Science Peking University Beijing 100871 China 2. Ministry of Education Key Laboratory of High Confidence Software Technologies (Peking University) Beijing 100871 China

Uncontrolled overload is one of the major causes of the system's decline in reliability and performance for web *** also harms the construction of trustworthy *** paper presents a degradationbased mechanism to adaptively control overload in complex,dynamic web *** our mechanism,the bottlenecks in the application's performance are determined by internally monitoring the performance and resource utilization state of the application,which is decomposed into a set of *** locating the bottlenecks,two decision algorithms are proposed to dynamically and adaptively generate proper degradation plans without *** degrading the service which consumes critical resources and has a low priority from the perspective of business logic,the application can keep providing key services even when overload *** implement a prototype and conduct a case study on a wiki *** also evaluate our approach and demonstrate its effectiveness in simulated overload *** handling overload,we make a breakthrough in building trustworthy software in an open,dynamic and rapidly changing environment.

关键词： overload service degradation resource monitoring performance management

Effects of temperature and organic and inorganic nutrients on the growth of Chattonella marina (Raphidophyceae)from the Daya Bay,South china Sea

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Acta Oceanologica Sinica 2011年第3期30卷 124-131页

作者： WANG Zhaohui YUAN Meiling LIANG Yu LU Sollghui College of Life Science and Technology Jinan University Guangzhou 510632 China engineering research Center of Tropical and Subtropical Aquatic Ecological engineering Ministry of Education Guangzhou 510632 China

The effects of temperature and different forms of nutrients on Chattonella marina growth have been investigated in strains isolated from the Daya Bay, the South china Sea. The strain of C. marina preferred high temperatures, with an optimal temperature of 2.℃, and 18℃ was the minimum for its survival. Higher cell number and growth rate were obtained in high nitrogen and phosphorus concentrations （500 μg/L, 74μg/L） than under nutrient limitation. Nitrogen influenced the growth most, as the specific growth rate and maximum cell density were lower in nitrogen- limited cultures than noted under phosphorus limitation or under limitation from both. C. marina was capable of using many kinds of organic nitrogen sources including L-serine （L-Ser）, glycine （Gly）, alanine （Ala）, L-threonine （L-Thr）, glutamic acid （Glu） and urea, but could not utilize uric acid. Various forms of organic phosphorus compound such as glucose-6-phosphate （G6P）, sodium glycerophosphate （GYP）, adenosine triphosphate （ATP）, adenosine monophosphate （AMP）, cyti- dine monophosphate （CMP）, guanosine monophosphate （GMP）, uridine monophosphate （UMP）, 4-nitrophenylphosphate （NPP） and triethyl phosphate （TEP） supported the growth as well. Algal cells had the ability to sustain growth under nitrogenand/or phosphorus-free conditions particularly under phosphorus depleted condition. These results led to the hypothesis that high loading of nitrogen has played an important role in frequent C. marina blooms in the past decade, and its capability for utilization of diverse forms of organic nutrients and growth in low nutrient conditions make this species a likely recurrent dominant in the Daya Bay phytoplankton assemblages, visible as more frequent blooms.

关键词： Chattonella marina growth inorganic and organic nutrients salinity temperature

Accurate location of all surface wave modes for Green's functions of a layered medium by consecutive perturbations

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Science china(Information Sciences) 2010年第11期53卷 2363-2376页

作者： SONG Zhe, ZHOU HouXing, HU Jun, LI WeiDong & HONG Wei State Key Laboratory of Millimeter Waves, School of Information Science and engineering, Southeast university, {2. 2.0096, china 1. State Key Laboratory of Millimeter Waves School of Information Science and Engineering Southeast University Nanjing 210096 China

In this paper, an efficient method is proposed to quickly and accurately locate all the surface wave modes of spectral Green’s functions of a layered medium. This method consists of two parts. In the first part, all the surface wave poles without considering the medium loss are located by a modified dichotomy on the real axis in the complex plane. In the second part, consecutive perturbations with respect to the medium loss are performed, which means that the medium loss is increased step by step from zero to the given value, and at each step, the Newton-Raphson algorithm is employed to find all the current poles, with the poles at the previous step as initial values. The residues of the surface wave poles are analytically calculated without any contour integral. The whole procedure is based on the recursively rational forms of spectral Green’s functions. As an application, all the surface wave poles and their residues obtained by the method proposed in this paper are applied in evaluation of the spatial Green’s functions by the discrete complex image method. Some numerical examples are provided to validate the correctness and efficiency of the proposed method.

关键词： Green’s function Sommerfeld integral surface wave pole perturbation discrete complex image method

Effect of stress sensitivity on displacement efficiency in CO_2.flooding for fractured low permeability reservoirs

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Petroleum Science 2009年第3期6卷 277-283页

作者： Wang Rui Yue Xiang＇an Zhao Renbao Yan Pingxiang Dave Freeman Key Laboratory of Petroleum engineering Ministry of Education China University of Petroleum Beijing 102249 China SINOPEC Exploration ＆ Production research Institute Beijing 100083 China china Power Complete Equipment Co. Ltd. Beijing 100011 China Edwy R. Brown Department of Petroleum engineering Marietta College U.S.A.

Carbon dioxide flooding is an effective means of enhanced oil recovery for low permeability reservoirs. If fractures are present in the reservoir, CO2.may flow along the fractures, resulting in low gas displacement efficiency. Reservoir pore pressure will fluctuate to some extent during a CO2.flood, causing a change in effective confining pressure. The result is rock deformation and a reduction in permeability with the reduction in fracture permeability, causing increased flow resistance in the fracture space. Simultaneously, gas cross flowing along the fractures is partially restrained. In this work, the effect of stress changes on permeability was studied through a series of flow experiments. The change in the flowrate distribution in a matrix block and contained fracture with an increase in effective pressure were analyzed. The results lead to an implicit comparison which shows that permeability of fractured core decreases sharply with an increase in effective confining pressure. The fracture flowrate ratio declines and the matrix flowrate ratio increases. Fracture flow will partially divert to the matrix block with the increase in effective confining pressure, improving gas displacement efficiency.

关键词： Stress sensitivity flowrate distribution matrix fracture CO2.flooding displacement efficiency

Method for determining effective flame emissivity in a rotary kiln incinerator burning solid waste

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Journal of Zhejiang university-Science A(Applied Physics & engineering) 2012年第12期13卷 969-978页

作者： Jin-cai DU1,2.Qun-xing HUANG1,Jian-hua YAN1 (1State Key Laboratory of Clean Energy utilization,Zhejiang university,Hangzhou 31002.,{2.) (2.chool of Aeronautics and Astronautics,Zhejiang university,Hangzhou 31002.,{2.) 1. State Key Laboratory of Clean Energy utilization Zhejiang University Hangzhou 310027 China 2. School of Aeronautics and Astronautics Zhejiang University Hangzhou 310027 China

Temperature is the most important parameter for the improvement of combustion efficiency and the control of *** order to obtain accurate flame temperatures in a rotary kiln incinerator using non-intrusive thermographic method,the effective flame emissivity was studied.A combined narrow-and wide-band model and Mie scattering method were used to calculate the radiative properties for gases and fly-ash particles under different combustion *** effects of the air/waste ratio and fly-ash particles on the effective flame emissivity were *** results of numerical calculations showed that the effective emissivity decreased from 0.90 to 0.80 when the air/waste ratio increased from 1.0 to 1.8,and the effect of the fly-ash particles was ignorable under the conditions discussed in this *** measurement results indicated that the accuracy of the thermographic temperature measurements improved significantly if the setting of the flame emissivity was adjusted according to the air/waste ratio.

关键词： Thermographic temperature measurement Effective flame emissivity Rotary kiln incinerator Air/waste equivalenceratio