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In his paper he authors present a comparison between magnet-based and magnet-free moors for an oil pump used in automotive applications. From the first category, two inset permanent magnet (IPMs) synchronous moors are chosen whereas the later group of moors is represented by a double stator switched reluctance machine (DS-SRM). The three-phase 12s/8p and 12s/10p IPMs are compared with the four-phase...
Material flow cost accounting (MFCA) is an effective environment management tool which can visualize any waste so as to reduce the waste in the production process. However, cost allocation method of material flow cost accounting adopted in Japan is a little inaccurate and cumbersome for Chinese accountant. This study developed the modified MFCA which divided system and energy cost into those for waste...
The incremental cost for increasing the power of Li-ion batteries for plug-in hybrid-electric vehicles (PHEVs) is moderate. Hence, the reduction of fuel consumption by using battery power at high vehicle speeds rather than engine power results in high net present value for the total cost of the battery and future fuel savings. The variation of designed efficiency at rated power is also evaluated to...
The research objective was to investigate reducing the rhenium concentration in Mo-Re alloys which would allow Semicon Associates to decrease the raw material costs while enhancing the electrical properties of a dispenser cathode.
Study on the enterprise's technology innovation from the perspective of VE is to consider innovation as an activity or a process, and the purpose of analysis is to make a choice of the innovation strategy by functions and life-cycle cost analysis. Technological innovation strategy is an overall planning on technological innovation activities and can be divided into three types such as the innovation...
At present, China's small and medium enterprises (SMEs) develop rapidly, they play an important role in developing regional economy, creating employment opportunities, meeting consumers' demand, innovating management system and other aspects. They become an important component of China's national economy. This thesis analyzed the status and characteristics of SMEs in China, deeply discussed the problems...
This paper studies the replenishment problem in a single item, multi-supplier environment. A cost optimal model is presented. A comparative analysis with singe supplier model showed the difference in two conditions. An extended model based on model in MTP is proposed when considering the time and production capability constraints in MTO and shows the management issues in organizing MTO supply chain.
Design of LV networks has two aspects: mechanical and electrical. The objective of the mechanical design is to determine the tension of wires, or equally their sags, in such a way that in various climates the designed network operates satisfactorily. On the other hand, the target of the electrical design is to fulfill the electric constrains, i.e. current, voltage, and losses constrains. In the case...
Optimizing the complex product charge, especially in steel enterprises, is challenging because that the species of the raw material is highly uncertain. Raw material should include metallic materials and alloys et al. We choose recipe of the alloying materials which are more expensively as optimization object. We give an effective model for the problem of minimizing cost of alloying materials, and...
Distribution center is a bridge connecting providers and clients. It plays an important role in logistics system. This paper put forward the least cost and the shortest time allocation models of materials distribution center. The integrated measure allocation models of materials distribution center considering the time and the cost together is built and a solution flow to the least cost and the shortest...
This paper reviews the work carried out at the Atomic Energy Research Establishment (AERE) since 1963 in connection with the development of isotope-powered thermoelectric generators, known as RIPPLEs. It outlines the criteria considered for the selection of strontium 90 as the radioisotope, the design of the generators, the choice of material for the biological shield, and the development of the thermal...
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