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1.
Xing Li Zuoqing Wang Cheng Kuei Jen Viens M. Cheeke J.D.N. 《IEEE transactions on ultrasonics, ferroelectrics, and frequency control》1996,43(2):331-336
Theoretical and experimental investigations of thin-walled tube acoustic wave devices for gravimetric sensing applications are presented. Integrated sensor configurations have been demonstrated by employing a sol-gel processed thin piezoelectric lead zirconate titanate (PZT) film. This was coated coaxially on stainless steel tubes and interdigital transducers (IDT) fabricated as the transmitter and receiver on the curved tube surfaces. We have observed tube waves along both the axial and circumferential directions between 1 and 6.6 MHz. We have also analyzed the mass sensitivities of different modes propagating along the tubes and shown that high mass sensitivity can be achieved by keeping the tube wall thin 相似文献
2.
本文介绍了湖北省中小河流水能资源开发规划工作进展,规划工作在树立绿色发展理念、摸清水能资源开发状况等方面取得的成效,以及湖北省为推动规划工作采取的主要做法。 相似文献
3.
Multi-agent technologies have been widely employed for the development of web-based systems, including web-based e-markets, web-based grid computing, e-governments and service-oriented software systems. In these service-oriented systems, service provider agents and service consumer agents are autonomous and rational entities, which can enter and leave the environments freely. For simplicity, we use terms ‘provider’ and ‘consumer’ to represent this two types of agents. How to select the most suitable service providers according to a service request from a consumer in such an open environment is a very challenging issue. In this paper, we propose an innovative trust model, called the GTrust model, for service group selection in general service-oriented environments. In the GTrust model, the trust evaluation for a service group is based on the functionality coverage of the group, the dependency relationships among individual services in the group, the ratings of individual services on the attributes of the service request and a similarity measurement of the extent to which reference reports can reflect the service request in terms of the priority distribution of attributes. The experimental results and analysis demonstrate the good performance of the GTrust model on the service group selection in service-oriented environments. 相似文献
4.
In this paper, we present a gradient domain image fusion framework based on the Markov Random Field (MRF) fusion model. In this framework, the salient structures of the input images are fused in the gradient domain, then the final fused image is reconstructed by solving a Poisson equation which forces the gradients of the fused image to be close to the fused gradients. To fuse the structures in the gradient domain, an effective MRF-based fusion model is designed based on both the per-pixel fusion rule defined by the local saliency and also the smoothness constraints over the fusion weights, which is optimized by graph cut algorithm. This MRF-based fusion model enables the accurate estimation of region-based fusion weights for the salient objects or structures. We apply this method to the applications of multi-sensor image fusion, including infrared and visible image fusion, multi-focus image fusion and medical image fusion. Extensive experiments and comparisons show that the proposed fusion model is able to better fuse the multi-sensor images and produces high-quality fusion results compared with the other state-of-the-art methods. 相似文献
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利用遗传算法的全局寻优能力,对落差指数法中的参数进行优化,通过实例分析表明,这种方法是可行的,且能弥补传统作法中的不足,值得推广。 相似文献
7.
热轧钢管加速冷却自动检测及控制系统的研究 总被引:2,自引:0,他引:2
介绍了在热轧钢管加速冷却的工艺过程中如何建立自动调节系统,以及用来实现自动检测和控制所需要的软、硬件的设计思想和设计方法,对研究和试验过程中新的加速冷却工艺所取得的实际效果进行了全面分析。 相似文献
8.
本文将近期发展起来的研究溶液中分子络合物的折射法用于氯苯-苯酚体系。以侵入式折射仪测定了该体系在惰性溶剂四氯化碳中的络合常数,并对R.A.Singh等的论文中关于△n~2的求算问题进行了商榷。 相似文献
9.
Wang Xing Li Jianfeng Wang Liming Jia Xiujie Hong Minghui Ren Yuan Ma Mingliang 《Clean Technologies and Environmental Policy》2021,23(5):1403-1414
Clean Technologies and Environmental Policy - Steel parts are a kind of high recovery value product for which de-rusting is the primary step in the recycling process. Laser cleaning is a popular... 相似文献
10.
分析了沈阳煤业集团西马煤矿北二区的地质条件,根据生产实际对北二区回风上山掘进工作面的支护选择锚杆锚索联合支护方式,确保了大断面巷道支护的安全。 相似文献