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71.
72.
The language for describing inconsistency is underdeveloped. If a database (a set of formulae) is inconsistent, there is usually no qualification of that inconsistency. Yet, it would seem useful to be able to say how inconsistent a database is, or to say whether one database is more inconsistent than another database. In this paper, we provide a more general characterization of inconsistency in terms of a scoring function for each database . A scoring function S is from the power set of into the natural numbers defined so that S() gives the number of minimally inconsistent subsets of that would be eliminated if the subset was removed from . This characterization offers an expressive and succinct means for articulating, in general terms, the nature of inconsistency in a set of formulae. We then compare databases using their scoring functions. This gives an intuitive ordering relation over databases that we can describe as more inconsistent than. These techniques are potentially useful in a wide range of problems including monitoring progress in negotiations between a number of participants, and in comparing heterogeneous sources of information. 相似文献
73.
A trust negotiation system for digital library Web services 总被引:1,自引:0,他引:1
Halvard?SkogsrudEmail author Boualem?Benatallah Fabio?Casati 《International Journal on Digital Libraries》2004,4(3):185-207
A scalable approach to trust negotiation is required in digital library (DL) environments that have large and dynamic user populations. In this paper we introduce Trust-Serv, a model-driven trust negotiation framework for Web services, and show how it can be used to effectively handle trust negotiation in DLs. The framework employs a model for trust negotiation based on state machines, extended with security abstractions. High-level specifications expressed with the state-machine-based model are then translated into formats suitable for automating the trust negotiation process. The proposed framework also supports negotiation policy lifecycle management, an important trait in the dynamic environments that characterize DLs. In particular, we present a set of policy change operations that enable the dynamic evolution of negotiation policies without disrupting ongoing negotiations. The proposed approach has been implemented as a container-centric mechanism that is transparent to the DL and to the developers of DL Web services, simplifying DL development and management as well as enabling scalable deployments. 相似文献
74.
Negotiating stakeholder WinWin relationships among software quality requirements is a technique that emerged during the 1990's in order to overcome the difficulties arising from contract-oriented specification compliance (popular in the 1970's) and service-oriented customer satisfaction (popular in the 1980's). Obstacles to adoption of negotiated win-win relationships include coordination of multiple stakeholder interests and priorities, reasoning of complicated dependencies, and scalability of an exponentially increasing resolution option space. Conflict identification and resolution techniques are key success factors to overcome the obstacles. This paper describes two exploratory knowledge-based tools (called QARCC and S-COST)* for conflict identification and resolution and how they were used in the digital library projects of a USC Software Engineering class during the 1996/97 school year. A comparative analysis with the artifacts surfaced by stakeholders and the artifacts generated and analyzed by QARCC and S-COST focused on the conflict resolution process, stakeholders' roles and their relationships to quality artifacts, and tool effectiveness. We conclude that the tools helped stakeholders: (1) surface and negotiate conflicts; (2) identify conflicts among functional and quality requirements; and (3) generate, visualize, and negotiate potential resolution options for the conflicts. 相似文献
75.
Multiagent cooperative negotiation is a promising technique for modeling and controlling complex systems. Effective and flexible
cooperative negotiations are especially useful for open complex systems characterized by high decentralization (which implies
a low amount of exchanged information) and by dynamic connection and disconnection of agents. Applications include ad hoc
network management, vehicle formation, and physiological model combination. To obtain an effective control action, the stability of the negotiation, namely the guarantee that an agreement will be eventually reached, is of paramount importance. However,
the techniques usually employed for assessing the stability of a negotiation can be hardly applied in open scenarios. In this
paper, whose nature is mainly theoretical, we make a first attempt towards engineering stable cooperative negotiations proposing
a framework for their analysis and design. Specifically, we present a formal protocol for cooperative negotiations between a number of agents and we propose a criterion for negotiation stability based on the concept of connective stability. This is a form of stability that accounts for the effects of structural changes on the composition of a system and that
appears very suitable for multiagent cooperative negotiations. To show its possible uses, we apply our framework for connective
stability to some negotiations taken from literature. 相似文献
76.
针对MTO(make-to-order)供应链环境下制造商与供应商的多个订单的价格/交货期协商问题,基于供应链伙伴间关系是竞争性合作的特点,提出一种新的两阶段协商议程.在合作性协商阶段,中介者利用模拟退火算法帮助制造商和供应商寻找最小化供应链总成本的交货期预协议点;制造商和供应商在此基础上基于整合效用的思想调整价格议题的保留值和期望值.在竞争性协商阶段双方逐步让步,就价格达成协议.实验表明,该协商议程能够获得近似最优的社会福利,达成对协商人双赢的方案.该协商议程能够有效应用于供应链协调和B2B在线市场. 相似文献
77.
78.
Weingart Laurie R.; Brett Jeanne M.; Olekalns Mara; Smith Philip L. 《Canadian Metallurgical Quarterly》2007,93(6):994
Negotiators' social motives (cooperative vs. individualistic) influence their strategic behaviors. In this study, the authors used multilevel modeling and analyses of strategy sequences to test hypotheses regarding how negotiators' social motives and the composition of the group influence group members' negotiation strategies. Four-person groups negotiating a 5-issue mixed-motive decision-making task were videotaped, and the tapes were transcribed and coded. Group composition included 2 homogeneous conditions (all cooperators and all individualists) and 3 heterogeneous conditions (3 cooperators and 1 individualist, 2 cooperators and 2 individualists, 1 cooperator and 3 individualists). Results showed that cooperative negotiators adjusted their use of integrative and distributive strategies in response to the social-motive composition of the group, but individualistic negotiators did not. Results from analyses of strategy sequences showed that cooperators responded more systematically to others' behaviors than did individualists. They also redirected the negotiation depending on group composition. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
79.
Howard Elizabeth Seeley; Gardner Wendi L.; Thompson Leigh 《Canadian Metallurgical Quarterly》2007,93(4):614
In this work, the authors explored how a person's view of himself or herself might determine his or her use of power in a complex dispute resolution negotiation. In 3 studies of asymmetric power in negotiations, the authors demonstrated that the impact of power on motivation and behavior is moderated by both a person's self-view and the social context. In Study 1, the results revealed that in a one-on-one dispute, powerful individuals primed to hold an interdependent (as opposed to independent) self-construal are more generous in resolving their disputes with low-powered opponents. Study 2 replicated this finding but revealed a different pattern in intergroup disputes, in which powerful interdependent teams of negotiators are actually less generous than are independent teams. Study 3 provided a conceptual replication of Study 2, with the use of chronic measures of self-construal and self-reported measures of behavior. Results suggest that an interdependent self-construal may lead to a more benevolent use of power in dyadic conflicts but more exploitive uses of power in intergroup conflicts. Implications for the understanding of power and self-construal are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
80.
刘继华 《浙江理工大学学报》2007,24(6):683-688
随着私营企业劳资关系的增加,凸显出我国私营企业劳资关系协调机制存在的诸多问题,针对私营企业劳资关系协调机制存在的问题,借鉴国外先进经验,提出了我国完善私营企业劳资关系协调机制的法律措施。重点对如何解决私企工会的人财独立问题及雇主组织的缺位问题提出了改革措施,并结合集体谈判的成功经验构建了适合我国私企特点的行业或区域性集体谈判制度及劳动基准法定谈判模式。 相似文献