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Chinese cities are now at a stage of rapid development and the problems of transportation, environment and land use are increasingly serious. Urban rapid rail transit is wholly a convenient, fast, effective, low-carbon, environment-friendly urban infrastructure system, which providing an effective way for the sustainable development of urban transit and land use. In this paper, the effect mechanism...
With the increasing scale of modern enterprises, the accounts receivable are more and more important, so how better to manage the bad debt of the accounts receivable has become a focus of attention. In this paper, the advantages and disadvantages of various accounts receivable bad debts management practices, such as percentage of accounts receivable balances, aging analysis, the percentage of sales...
Aiming at energy saving, efficient and low-cost, an approach of optimal design of a cooling system with compact structure for an 8 MeV-10 MeV irradiation accelerator is presented. A jacket-type cooling structure with a single-inlet helix water channel is chosen and minimum water flow, pressure and optimum inlet temperature are determined. As the result, a temperature distribution less than plusmn...
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