首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 93 毫秒
1.
ONTHEISOMORPHISMSOFSMOOTHALGEBRAICCURVES(Ⅰ)DUHong(InstituteofSystemsScience,AcademiaSinica,Beijing100080,China)Abstract:Inthi...  相似文献   

2.
StrategicTradingMethodAPracticalRiskInvestmentApproach¥LIYaoxin(ShanghaiPlanningCommission,Shanghai,200002)Abstract:Technical...  相似文献   

3.
EconomicEvaluationofaWaterSourceProjectWANGShilin(InstituteofSystemsScience,AcademiaSinica,Beijing,100080)XUEYiming(BeijingBu...  相似文献   

4.
资源分配中引导下级汇报真实信息的激励策略   总被引:2,自引:1,他引:1  
资源分配中引导下级汇报真实信息的激励策略石永恒(北京航空航天大学管理学院,100083)IncentiveStrategiesforTrueInformationinResourceAllocationShiYongheng(SchoolofMana...  相似文献   

5.
(x)?S.Ifg(x)=0,S*(x)=S*.MomnitS/0andnitS(x)2nitS,nitS(x)/0.Hellce(S(x))*=S*(x)hasacompactconvexbase,denotedbyA,andthecompactconvexbaseofQ*isdenotedbyB.{0}*=Re.LetC={xERe:IIxll=1}.ThenCisacompactbaseof{0}*.Letsupposethat(3dOER")(VPEV*\{0})(PTp)"(x;do)<0,fromLemma2.3thereedestsadER"togetherwithb>0suchthatInparticular,fixingTEBandA6A,settingp ̄(ET,ac, ̄)EV*withE>0andueC,weIndeed,ifthereexistsaalE(0,6)suchthath(x+a'd)/0,wecanchooseFIECsatisfyingU,"h(x+a'd)>0.In(4),lettingE-0,itfollowsthatU"h(x+rs'd)<0,wh  相似文献   

6.
WU-RITT'SMETHODFORNONLINEARCONTROLSYSTEMS¥LIShurong(InstituteofSystemsScience,AcademiaSinica,Beijing100080,China)Abstract:Thi...  相似文献   

7.
NeuralNets:AnotherParadigmforDecisionSupport¥FengShan(Dept.ofACE,HuazhongUniversityofScienceandTechnology,Wuhan430074,China)A...  相似文献   

8.
ADiscreteEventSimulationSupportSysteminC~(++)¥LINJian(TheManagementSchoolBeijingUniversityofAeronauticsandAstronauticsBeijing?..  相似文献   

9.
LONG DOMINATING CYCLES IN A KIND OF 2-CONNECTED GRAPHS   总被引:1,自引:0,他引:1  
LONGDOMINATINGCYCLESINAKINDOF2-CONNECTEDGRAPHSSHENRuqun(InstituteofBiophysics,AcademiaSinica,Beijing100101,China)TIANFeng(Ins...  相似文献   

10.
SYSTEMSSCIENCEANDMATHEMATICALSCIENCES¥(InstructionforAuthors)TheEnglisheditionofSyslemsScienceandMalhemallcalSciencesisdistri...  相似文献   

11.
An adaptation of a First-World planning method was successfully used to help solve the problematic situation confronted by a Third-World higher education institution. The Search Conference is a method which enables the necessary conditions for a set of individuals to engage into a comprehensive process of reflection and design over a specific social system or domain. While preserving its essential characteristics, the Search Conference has been adapted to respond to a Third-World organizational environment. The realization of a “massive” conference in a Mexican public university triggered a participative strategic planning process of long-lasting consequences. The university community designed a desired future for the institution which became the guiding force to mobilize it in the agreed-upon direction. They also learned how to plan and carry on projects participatively. Some tangible results are the identification of students' regional demand, with the consequent creation of four new bachelors degrees and two masters degrees; the creation of a program to support those faculty members who would be willing to undertake masters and doctoral studies in outside prestigious universities; the increase in enrollment as a result of combined actions; and the opening of two extension centers off campus to improve the external community's involvement. In conclusion, a change of attitude emerged from the conference, which has been instrumental for the continuing involvement of the internal community in the creation of a new university agreeable to all.  相似文献   

12.
1.IntroductionSomefrequentlyusedalgebraicalgorithmssharethesamepropertythattheytransformasetofpolynomialequationstoasinglepolynomialequationsuchthatthezerosetofthepolynomialsetandthehypersurfacedefinedbythesinglepolynomialareequivalentincertainsense.FOralgorithmswiththisproperty,wemaymention'thealgorithmtofindaprimitiveelementforafinitelygeneratedalgebraicextensionfield[1],thealgorithmtofindaplanecurvewhichisbirationaltoaspacealgebraiccur.e[2]!etc.Inthispaper,wepresentageneralalgorithmwhichcan…  相似文献   

13.
A broker in an open e-marketplace enables buyers and sellers to do business with each other. Although a broker plays an important role in e-marketplaces, theory and guidelines for matching between buyers and sellers in multi-attribute exchanges are limited. Therefore, a challenge for a broker’s responsibility is how to maximize a buyer’s total satisfaction degree as its goals under the consideration of trade-off between a buyer’s buying quantity and price paid to a seller, and other attributes. To solve this challenge, this paper proposes an economic model-based matching approach between a buyer’s requirements and a seller’s offers. The major contributions of this paper are that (i) a broker can model a seller’s price policy as per a buyer’s buying quantity through communication between a broker and a seller; (ii) due to each buyer’s different quantity demand, a broker models a buyer’s satisfaction degree as per a buyer’s buying quantity based on communication between a broker and a buyer; and (iii) to carry out a broker’s matching processes, an objective function and a set of constraints are generated to help a broker to maximize a buyer’s total satisfaction degree. Experimental results demonstrate the good performance of the proposed approach.  相似文献   

14.
基于下半方差的债券投资组合模型   总被引:2,自引:0,他引:2  
用下半方差作为风险度量构建了债券投资组合模型,研究投资者的债券投资问题。在理论上分析了模型最优解的存在性,并且证明了模型具有全局最优解。为了得到最优债券投资组合策略,依据模型的随机属性,构造了求解模型的蒙特卡罗罚函数算法,并且证明了算法的收敛性。给出了相应的数值算例验证模型的有效性。  相似文献   

15.
Genetic algorithm for pareto optimum-based route selection   总被引:1,自引:0,他引:1       下载免费PDF全文
A quality of service (QoS) or constraint-based routing selection needs to find a path subject to multiple constraints through a network. The problem of finding such a path is known as the multi-constrained path(MCP) problem, and has been proven to be NP-complete that cannot be exactly solved in a polynomial time. The NPC problem is converted into a multiobjective optimization problem with constraints to be solved with a genetic algorithm. Based on the Pareto optimum, a constrained routing computation method is proposed to generate a set of nondominated optimal routes with the genetic algorithm mechanism. The convergence and time complexity of the novel algorithm is analyzed. Experimental results show that multiobjective evolution is highly responsive and competent for the Pareto optimum-based route selection. When this method is applied to a MPLS and metropolitan-area network, it will be capable of optimizing the transmission performance.  相似文献   

16.
The purpose of this project is to explore a way for systems practitioners to learn the skills necessary to employ a particular systems model in practice. Reflection-in-Action is one way to embark on a double-loop learning cycle and, thus, develop the tacit skills and inarticulate knowledge needed to employ a particular systems model. Through Reflection-in-Action, a Viable Systems Model (VSM) of the San Francisco Zoo was constructed. This project involved three phases of research; for each, a VSM using the data available was constructed. During each phase, the questioning of current assumptions and operating norms led to changes in the direction of the research. This led to the construction of significantly different VSMs for each phase.  相似文献   

17.
针对一类严格块反馈型不确定非线性系统,采用反步设计方法提出了一种新的基于滑模状态观测器的L1自适应控制方案。由于系统状态不完全可测,首先设计滑模观测器对系统状态进行估计,并分析观测器的收敛性,在此基础上,通过反步法得到系统的理想控制律。为了消除反步控制中的“项数膨胀”,引入非线性跟踪微分器来提取理想控制律的微分信号。为提高系统响应的瞬态性能,消除控制输入的高频振荡,引入L1自适应控制对控制律进行改进,通过理论推导证明了闭环系统的稳定性。最后通过数值仿真算例验证了所设计控制方案具有快速的收敛性、良好的跟踪性等期望性能。  相似文献   

18.
This paper attempts to make sense of the apparent paradox of the successful representation of management as a technical practice coexisting with a lack of success in management sustaining a project of professionalization. The success of the former has, for many occupations, been the key to the latter, especially when allied with university licensing. The main issues and debates relating to management as a technical practice, management as a profession, and the role of the management academy are outlined. This leads to an alternative interpretation of their relation, in which the representation of management as a technical practice is envisaged not as a failed professionalization of management but rather as a successful responsibilization of managers.  相似文献   

19.
一种消费者品牌偏好的模糊排序方法   总被引:11,自引:0,他引:11  
为将消费者对品牌属性的模糊评判信息转化为消费者的品牌偏好信息,首先将模糊语义转化为三角模糊数,然后利用模糊数的广义加法、近似乘法及标量乘法计算,从而将消费者对属性的离散意见转化为对某一品牌的综合意见.然后通过定义一种模糊数综合排序指标来确定消费者的品牌偏好顺序.最后还通过一个算例来说明方法的实用性和有效性.  相似文献   

20.
根据单纯形仿射混杂系统的可达性分析设计控制律,使机器人在平面任意两点间运行,保证其安全性并考虑其最优性.对机器人的状态空间进行三角划分,根据目标吸引原理来建立其对偶图,针对对偶图提出路径规划算法得到最短路径穿越的三角形序列.然后根据仿射系统在单纯形中的性质,提出运动规划算法,得到机器人的角速度和线速度,控制机器人穿越给定的三角形序列到达目标点.仿真结果表明了方法的有效性.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号