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The ultrasonic ranging system is widely used in automobiles, mobile robots, industrial control systems, etc. Ultrasonic transducer is the core component of car reversing aid system (CRAS). At present, Lead Zirconate Titanate (PZT) is generally used as piezoelectric material for ultrasonic transducer. In this paper, a method of successful use of Barium Titanate (BT) material in transducer application...
Based on the key link of knowledge modeling in intelligent teaching domain, this paper brings forward the solution to agent technology; analyses the advantages of agent technology applied to knowledge modeling in teaching domain; suggests a hierarchical model for the domain knowledge in teaching; expatiates the functional modules of knowledge model; and also analyzes emphatically the modeling of domain...
Dissipation is a system. Dissipative system is a change process of material, energy and information with outside. This paper uses dissipative structure in stock option excitation mechanisms. And it shows that according to the theory of dissipative structure, in the research of stock option excitation mechanisms, the first thing is to assure it is open, and only improve the disadvantage; the system...
New on-chip RF solenoid inductors with Ni-Zn-Cu ferrite-filled structure are reported. The concave-suspending solenoids are fabricated by a post-CMOS MEMS process, and then a CMOS compatible low-temperature nano-powder-mixed-photoresist filling technique is used to fill ferrites into the inductor cavities. It shows significant improvements in inductance L and quality factor Q up to +60% and +107%,...
Nowadays, in a hotly competitive environment, production-distribution network design is a critical decision that has significant impacts on a supply chain's long-term performance. Generally speaking, stochastic optimization and robust optimization models are two types of optimization models involving uncertainty. In this paper, we present a simulation-based robust optimization method for supply chain...
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