全文获取类型
收费全文 | 1717篇 |
免费 | 291篇 |
国内免费 | 364篇 |
专业分类
电工技术 | 266篇 |
技术理论 | 1篇 |
综合类 | 216篇 |
化学工业 | 11篇 |
金属工艺 | 18篇 |
机械仪表 | 134篇 |
建筑科学 | 14篇 |
矿业工程 | 5篇 |
能源动力 | 16篇 |
轻工业 | 6篇 |
水利工程 | 12篇 |
石油天然气 | 2篇 |
武器工业 | 17篇 |
无线电 | 97篇 |
一般工业技术 | 76篇 |
冶金工业 | 8篇 |
自动化技术 | 1473篇 |
出版年
2024年 | 9篇 |
2023年 | 102篇 |
2022年 | 81篇 |
2021年 | 74篇 |
2020年 | 67篇 |
2019年 | 61篇 |
2018年 | 65篇 |
2017年 | 75篇 |
2016年 | 102篇 |
2015年 | 59篇 |
2014年 | 129篇 |
2013年 | 224篇 |
2012年 | 105篇 |
2011年 | 95篇 |
2010年 | 107篇 |
2009年 | 116篇 |
2008年 | 130篇 |
2007年 | 130篇 |
2006年 | 145篇 |
2005年 | 114篇 |
2004年 | 125篇 |
2003年 | 91篇 |
2002年 | 50篇 |
2001年 | 41篇 |
2000年 | 29篇 |
1999年 | 14篇 |
1998年 | 16篇 |
1997年 | 9篇 |
1996年 | 2篇 |
1995年 | 3篇 |
1991年 | 2篇 |
排序方式: 共有2372条查询结果,搜索用时 15 毫秒
1.
Controllability and observability of multi-agent systems with heterogeneous and switching topologies
ABSTRACTThis paper focuses on controllability and observability of multi-agent systems with heterogeneous and switching topologies, where the first- and the second-order information interaction topologies are different and switching. First, based on the controllable state set, a controllability criterion is obtained in terms of the controllability matrix corresponding to the switching sequence. Next, by virtue of the subspace sequence, two necessary and sufficient algebraic conditions are established for controllability in terms of the system matrices corresponding to all the possible topologies. Furthermore, controllability is considered from the graphic perspective. It is proved that the system is controllable if the union graph of all the possible topologies is controllable. With respect to observability, two sufficient and necessary conditions are derived by taking advantage of the system matrices and the corresponding invariant subspace, respectively. Finally, some simulation examples are worked out to illustrate the theoretical results. 相似文献
2.
Gianvito Difilippo Maria Pia Fanti Agostino Marcello Mangini 《IEEE/CAA Journal of Automatica Sinica》2022,9(2):259-269
The paper deals with the consensus problem in a leaderless network of agents that have to reach a common velocity while forming a uniformly spaced string. Moreover, the final common velocity (reference velocity) is determined by the agents in a distributed and leaderless way. Then, the consensus protocol parameters are optimized for networks characterized by a communication topology described by a class of directed graphs having a directed spanning tree, in order to maximize the convergence rate and avoid oscillations. The advantages of the optimized consensus protocol are enlightened by some simulation results and comparison with a protocol proposed in the related literature. The presented protocol can be applied to coordinate agents such as mobile robots, automated guided vehicles (AGVs) and autonomous vehicles that have to move with the same velocity and a common inter-space gap. 相似文献
3.
4.
5.
Yude Ji Yanping Guo Yuejuan Liu Yun Tian 《International Journal of Adaptive Control and Signal Processing》2020,34(3):283-297
This article focuses on the consensus problem of leader-following fractional-order multi-agent systems (MASs) with general linear and Lipschitz nonlinear dynamics. First, the distributed adaptive protocols for linear and nonlinear fractional-order MASs are constructed, respectively. We allow the control coupling gains to be time varying for each agent. Moreover, the adaptive modification schemes for the control gain are designed, which renders smaller control gains and thus requires smaller amplitude on the control input without sacrificing consensus convergence. Second, based on fractional-order Lyapunov stability theorem and Barbalat's lemma, two novel sufficient conditions in terms of linear matrix inequalities are provided to ensure that the leader-following consensus can be obtained in the case for any undirected connected communication graph. Furthermore, we show that the proposed algorithm also works for consensus of agents with intrinsic Lipschitz nonlinear dynamics. As a result, the proposed framework requires no global information and thus can be implemented in a fully distributed manner. Finally, the numerical simulations are given to demonstrate the effectiveness of obtained the theoretical results. 相似文献
6.
In the present, global and competitive market customer's demands are very volatile. It is very difficult for small and medium size enterprises (SMEs) to satisfy their customer with quality product in reasonable price. Large firms are spending huge amount of their budget in generating technology development. To cope with this competitive market, usually, SMEs concentrate on their core expertise and outsource some non-core items or activities. The outsourcing decision (when, what, whom) is very crucial for small-scale industries. Realizing this scenario, in this article, an automated self-adaptive multi-agent system has been proposed. The proposed system will help SMEs to take an appropriate decision to mitigate the uncertainty in supply chain. The developed system exploits the “Outsourcing of operations” feature by its agents to conclude the manufacturing processes faster and reduce the idle time of certain machines with less human intervention. The communication protocol for agents has been described to give an insight of their communication. It was explained how various agents like outsourcing, material planning and supplier selection will come into action at different stages and take appropriate outsourcing decisions. Therefore, this multi-agent architecture will facilitate small scale manufacturing industries to execute their manufacturing processes and complex logistics issues efficiently. The execution of proposed architecture has been described in the simulated case study. 相似文献
7.
新型建筑工业化具有高质量、低消耗、可循环发展等特征,其推广已上升到国家战略层面。利用演化博弈方法,建立“政府-开发商-银行” 的三方动态演化博弈模型,进行各博弈主体策略的演化稳定性分析,并针对初始状态、奖惩力度、借贷风险和开发成本等对演化结果的影响进行动态仿真。在此基础上, 考虑开发商群体的网络拓扑特征对演化真实性的影响,引入复杂网络理论, 以无标度网络为载体描述开发商个体的连接偏好和决策机制,构建政府监管下的建筑工业化扩散模型,并通过仿真深入研究相关因素对扩散深度的影响作用,最后结合仿真结果给出相应对策建议。 相似文献
8.
AbstractMulti-agent systems need to communicate to coordinate a shared task. We show that a recurrent neural network (RNN) can learn a communication protocol for coordination, even if the actions to coordinate are performed steps after the communication phase. We show that a separation of tasks with different temporal scale is necessary for successful learning. We contribute a hierarchical deep reinforcement learning model for multi-agent systems that separates the communication and coordination task from the action picking through a hierarchical policy. We further on show, that a separation of concerns in communication is beneficial but not necessary. As a testbed, we propose the Dungeon Lever Game and we extend the Differentiable Inter-Agent Learning (DIAL) framework. We present and compare results from different model variations on the Dungeon Lever Game. 相似文献
9.
自主机器人是一类由计算机软件控制的信息物理系统,如何支持该类机器人在开放环境下的有效和协调运行是自主机器人控制软件(CSAR:Control Software of Autonomous Robot)研究与实践面临的一项重要挑战.本文基于组织理论的思想,采用Structure-in-5的组织架构模式,提出了基于多智能体的CSAR的软件架构MaRSA(Multi-agent Robotic Software Architecture),通过独立抽象CSAR的行为规划、分发、执行等软构件并显式加强这些构件间的交互,从而为自主机器人行为的有效规划和协调实施奠定架构基础;提出了基于MaRSA架构的伴随行为机制,从因果性、时序性和按需性三个方面建立了机器人观察行为和任务行为间的伴随关系,并基于分步规划和动态决策的思想设计并实现了伴随行为的自主决策算法DAAB(Decision Algorithm of Accompanying Behaviors).论文分别在仿真环境和实际机器人环境下设计了对比性实验,结果表明,与主流的反应式行为决策算法和BDI式概率决策算法相比较,基于MaRSA和伴随行为机制的DAAB算法所生成的伴随行为规划在开放环境下具有可行性和更高效的执行效率. 相似文献
10.
负荷能够作为系统备用资源,通过需求响应平衡间歇性能源带来的系统功率波动。但是,由于调度工作量巨大,电网难以直接调度庞大且分散的负荷资源。因而提出基于多代理系统的负荷调度策略,建立了计及负荷违约的代理需求响应可调度容量上报博弈模型,同时构建了基于信任度的电网调度容量和调度量分配模型。代理根据自身负荷特点,向电网上报可调度容量,电网公司根据代理上报容量和信任度进行调度容量分配,并在实时调度时分配调度量,实现各个代理调度容量以及调度量的合理分配和电网调度费用低、代理收益高的目标。结果表明,该模型能够在计及负荷违约的条件下有效实现负荷需求响应调度容量和调度量的合理分配。 相似文献