检索结果-南通市图书馆

中国政治经济学年度发展报告（2023）（下）

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

政治经济学评论 2024年第3期 90+207-208页

作者： Center for Studies of Contemporary Political Economy,research institute for 21st-Century Marxism,Nankai university·university of Chinese Academy of Social Science Center for Teaching and research on Capital,Renmin university of china National institute of Socialist Political Economy with Chinese Characteristics,Renmin university of china 南开大学·中国社会科学院大学21世纪马克思主义研究院当代政治经济学研究中心中国人民大学《资本论》教学与研究中心中国人民大学全国中国特色社会主义政治经济学研究中心

编者按2023年，高质量发展扎实推进，新质生产力加快形成，我国经济总体回升向好，圆满实现发展主要预期目标。为针对性地破解经济恢复发展中的难题，聚焦推进中国式现代化进程中的重点、难点问题，中国政治经济学界开展系统深入研究，...

编者按2023年，高质量发展扎实推进，新质生产力加快形成，我国经济总体回升向好，圆满实现发展主要预期目标。为针对性地破解经济恢复发展中的难题，聚焦推进中国式现代化进程中的重点、难点问题，中国政治经济学界开展系统深入研究，取得系列代表性成果。为准确刻画学界研究进展和轨迹，推动中国经济学理论体系的构建和完善，本刊精选议题如期奉上《中国政治经济学年度发展报告（2023）》。自2010年起，本刊连续十四年发布《中国政治经济学年度发展报告》，“年度发展报告”专栏已成为本刊标志性特色栏目。2023年报告聚焦12个专题，分为（上）（下）两篇，其中专题1—6于报告（上）篇刊登，专题7—12由报告（下）篇刊登。2023年报告（下）选题如下：

关键词：

Real-time reliability prediction for dynamic systems with both deteriorating and unreliable components

同方期刊数据库人大复印报刊资料评论

在线全文

学校读者我要写书评

暂无评论

Science in china(Series F) 2009年第11期52卷 2234-2246页

作者： XU ZhengGuo1,2, JI YinDong2,3 & ZHOU DongHua1,2? 1 Department of Automation, tsinghua university, beij.ng 100084, china 2 tsinghua National Laboratory for information Science and technology, tsinghua university, beij.ng 100084, china 3 research institute of information technology (RIIT), tsinghua university, beij.ng 100084, china Department of Automation Tsinghua University Beijing 100084 China tsinghua National Laboratory for information Science and technology Tsinghua University Beijing 100084 China research institute of information technology (RIIT) Tsinghua University Beijing 100084 China

As an important technology for predictive maintenance, failure prognosis has attracted more and more attentions in recent years. Real-time reliability prediction is one effective solution to failure prognosis. Considering a dynamic system that is composed of normal, deteriorating and unreliable components, this paper proposes an integrated approach to perform real-time reliability prediction for such a class of systems. For a deteriorating component, the degradation is modeled by a time-varying fault process which is a linear or approximately linear function of time. The behavior of an unreliable component is described by a random variable which has two possible values corresponding to the operating and malfunction conditions of this component. The whole proposed approach contains three algorithms. A modified interacting multiple model particle filter is adopted to estimate the dynamic system＇s state variables and the unmeasurable time-varying fault. An exponential smoothing algorithm named the Holt＇s method is used to predict the fault process. In the end, the system＇s reliability is predicted in real time by use of the Monte Carlo strategy. The proposed approach can effectively predict the impending failure of a dynamic system, which is verified by computer simulations based on a three-vessel water tank system.

关键词： reliability failure prognostics dynamic systems fault prediction particle filtering interacting multiple model exponential smoothing,predictive maintenance

RRM:An incentive reputation model for promoting good behaviors in distributed systems

在线全文

学校读者我要写书评

暂无评论

Science in china(Series F) 2008年第11期51卷 1871-1882页

作者： ZHAng Hong1,2,DUAN HaiXin1,3 & LIU Wu1,3 1 tsinghua National Laboratory for information Science and technology,tsinghua university,beij.ng 100084,china 2 Department of Computer Science and technology,tsinghua university,beij.ng 100084,china 3 Network research Center,tsinghua university,beij.ng 100084,china 1. tsinghua National Laboratory for information Science and technology Tsinghua University Beijing 100084 China 2. Department of Computer Science and technology Tsinghua University Beijing 100084 China 3. Network research Center Tsinghua University Beijing 100084 China

Reputation systems represent soft security mechanisms that complement traditional information security mechanisms. They are now widely used in online e-commerce markets and communities in order to stimulate good behaviors as well as to restrain adverse behaviors. This paper analyzes the limitations of the conversational reputation models and proposes an incentive reputation model called the resilient reputation model （RRM） for the distributed reputation systems. The objective of this reputation model is not only to encourage the users to provide good services and, therefore, to maximize the probability of good transaction outcomes, but also to punish those adverse users who are trying to manipulate the application systems. The simulation results indicate that the proposed reputation model （RRM） could effectively resist against the common adverse behaviors, while protecting the profits of sincere users from being blemished by those adversaries.

关键词： reputation model distributed system trust soft security

A formal method to real-time protocol interoperability testing

在线全文

学校读者我要写书评

暂无评论

Science in china(Series F) 2008年第11期51卷 1723-1744页

作者： WAng ZhiLiang1,3,YIN Xia2,3 & JIng ChuanMing2,3 1 Network research Center,tsinghua university,beij.ng 100084,china 2 Department of Computer Science and technology,tsinghua university,beij.ng 100084,china 3 tsinghua National Laboratory for information Science and technology(TNList) ,beij.ng 100084,china 1. Network research Center Tsinghua University Beijing 100084 China 3. tsinghua National Laboratory for information Science and technology (TNList) Beijing 100084 China 2. Department of Computer Science and technology Tsinghua University Beijing 100084 China

Interoperability testing is an important technique to ensure the quality of implementations of network communication protocol. In the next generation Internet protocol, real-time applications should be supported effectively. However, time constraints were not considered in the related studies of protocol interoperability testing, so existing interoperability testing methods are difficult to be applied in real-time protocol interoperability testing. In this paper, a formal method to real-time protocol interoperability testing is proposed. Firstly, a formal model CMpTIOA （communicating multi-port timed input output automata） is defined to specify the system under test （SUT） in real-time protocol interoperability testing; based on this model, timed interoperability relation is then defined. In order to check this relation, a test generation method is presented to generate a parameterized test behavior tree from SUT model; a mechanism of executability pre-determination is also integrated in the test generation method to alleviate state space explosion problem to some extent. The proposed theory and method are then applied in interoperability testing of IPv6 neighbor discovery protocol to show the feasibility of this method.

关键词： protocol testing interoperability testing real-time testing test generation timed input output automata(TIOA)

Dark output characteristic of γ-ray irradiated CMOS digital image sensors

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2002年第1期21卷 79-84页

作者： MEng Xiangti and KAng A iguo institute of Nuclear Energy technology, tsinghua university, beij.ng 100084, china institute of Nuclear Energy technology Tsinghua University 北京 100084

The quality of dark output images from the CMOS (complementarymetal oxide semiconductor) black and white (B & W) digital imagesensors captured before and after γ-ray irradiation was studied. Thecharacteristic parameters of the dark output images captured atdifferent radiation dose, e.g. average brightness and itsnon-uniformity of dark out- put images, were analyzed by our testsoftware. The primary explanation for the change of the parameterswith the radi- ation dose was given.

关键词： CMOS digital image sensor gamma radiation dark output characteristic Si

林克明旧居修缮与活化利用,广州,广东,中国

在线全文

学校读者我要写书评

暂无评论

世界建筑 2024年第8期 64-69页

作者： Guangdong Architectural Design and research institute Group Co.,Ltd. Architectural Design and research institute of South china university of technology 广东省建筑设计研究院集团股份有限公司华南理工大学建筑设计研究院有限公司

街区断点更新林克明旧居(简称旧居)1935年由中国第一代著名建筑师林克明设计建造。旧居所在的越秀北路原为民国初年广州城墙拆除后的城基路,城外即东濠涌,前后高差达8m。林克明巧妙地利用地形组织功能与空间,并采用摩登建筑理念,使建筑... 详细信息

街区断点更新林克明旧居(简称旧居)1935年由中国第一代著名建筑师林克明设计建造。旧居所在的越秀北路原为民国初年广州城墙拆除后的城基路,城外即东濠涌,前后高差达8m。林克明巧妙地利用地形组织功能与空间,并采用摩登建筑理念,使建筑形体呈现出迷人的风采。

关键词：建筑形体建筑理念活化利用功能与空间著名建筑师林克明修缮城墙

A TTCN-3-based protocol testing system and its extension

在线全文

学校读者我要写书评

暂无评论

Science in china(Series F) 2008年第11期51卷 1703-1722页

作者： YIN Xia1,3,WAng ZhiLiang2,3,JIng ChuanMing1,3 & SHI Xingang2,3 1 Department of Computer Science and technology,tsinghua university,beij.ng 100084,china 2 Network research Center,tsinghua university,beij.ng 100084,china 3 tsinghua National Laboratory for information Science and technology(TNList) ,beij.ng 100084,china 1. Department of Computer Science and technology Tsinghua University Beijing 100084 China 3. ]tsinghua National Laboratory for information Science and technology (TNList) Beijing 100084 China 2. Network research Center Tsinghua University Beijing 100084 China

The protocol testing technology used in the next generation Internet should satisfy some new challenges and requirements. This paper focuses on the test suite description and test implementation techniques. TTCN-3 is chosen as the test suite description language and extended in both syntax and semantics to satisfy the requirements of protocol robustness testing. PITSv3, a protocol integrated testing system based on TTCN-3, is developed, and the extensions for robustness testing are implemented. Finally, two practical test applications are presented.

关键词： protocol testing TTCN-3 PITSv3 robustness testing

Theoretical research progress in new-generation Internet architecture

在线全文

学校读者我要写书评

暂无评论

Science in china(Series F) 2008年第11期51卷 1634-1660页

作者： WU JianPing1,2,3,LIU Ying2,3 & WU Qian2,3 1 Department of Computer Science,tsinghua university,beij.ng 100084,china 2 Network research Center,tsinghua university,beij.ng 100084,china 3 tsinghua National Laboratory for information Science and technology(TNList) ,beij.ng 100084,china 1. Department of Computer Science Tsinghua University Beijing 100084 China 2. Network research Center Tsinghua University Beijing 100084 China 3. tsinghua National Laboratory for information Science and technology (TNList) Beijing 100084 China

Internet has become the most important information infrastructure supporting modern socio-economic development, social progress and technological Innovation. Invented 30 years ago, today Internet is facing increasingly severe technical challenges. This paper introduces the progress of the major international newgeneration Internet research plans; analyzes its basic characteristics and the principal contradictions during the development; detsiledly introduces the research carried out by 973 Project ＂research of Future Internet Architecture＂ on the key scientific issues of new-generation Internet architecture and its latest research results; and looks to the future of the research-focus faced with the new situations of the basic research of new-generation Internet architecture as well as the new demands of innovative applications on Internet architecture.

关键词： new-generation Internet network architecture multi-dimension scalability

GHG emission reductions and costs to achieve Kyoto target

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2003年第4期15卷 541-547页

作者： CHEN Wen\|ying (Energy, Environment and Economy research institute, tsinghua university, beij.ng 100084, china.) Energy Environment and Economy Research Institute Tsinghua University 北京 100084

Emission projection and marginal abatement cost curves(MACs) are the central components of any assessment of future carbon market, such as CDM (clean development mechanism) potentials, carbon quota price etc. However, they are products of very complex, dynamic systems driven by forces like population growth, economic development, resource endowments, technology progress and so on. The modeling approaches for emission projection and MACs evaluation were summarized, and some major models and their results were compared. Accordingly, reduction and cost requirements to achieve the Kyoto target were estimated. It is concluded that Annex I Parties' total reduction requirements range from 503—1304 MtC with USA participation and decrease significantly to 140—612 MtC after USA's withdrawal. Total costs vary from 21—77 BUSD with USA and from 5—36 BUSD without USA if only domestic reduction actions are taken. The costs would sharply reduce while considering the three flexible mechanisms defined in the Kyoto Protocol with domestic actions' share in the all mitigation strategies drops to only 0—16%.

关键词： Kyoto Protocol emission reduction abatement cost flexible mechanisms