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对机顶盒产品的质量检测和安全风险的研究
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作者 史黎霞 《传播力研究》 2019年第35期271-271,共1页
随着社会经济的不断发展为各行业的未来发展带来更多的风险和挑战。对于机顶盒产品而言,作为当今人们生活之中必不可少的一种产品其质量好坏将直接关系电视节目的播放影响着产品用户的体验。对机顶盒进行产品质量检测和安全风险评估测... 随着社会经济的不断发展为各行业的未来发展带来更多的风险和挑战。对于机顶盒产品而言,作为当今人们生活之中必不可少的一种产品其质量好坏将直接关系电视节目的播放影响着产品用户的体验。对机顶盒进行产品质量检测和安全风险评估测试是确保产品优质完好地交付到用户的重要措施,同时,通过质量检测和安全风险工作的实施开展还将为产品制造企业在市场竞争中带来一定的优势。因此,本文通过对机顶盒产品具体的质量检测和安全风险测试方式进行研究进而为机顶盒产品的质量保障及产品安全性能优化提供参考和借鉴。 展开更多
关键词 机顶盒 质量检测 安全风险测试 研究
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Tracking of Flat Belts
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作者 Martin Egger Klaus Hoffmann 《Journal of Mechanics Engineering and Automation》 2012年第1期27-36,共10页
When applying fiat belts, correct tracking of the belt through the installation has to be assured. Since flat belts are commonly used for conveying and transmission purposes, tracking systems have been well developed,... When applying fiat belts, correct tracking of the belt through the installation has to be assured. Since flat belts are commonly used for conveying and transmission purposes, tracking systems have been well developed, but the ultimate tracking behaviour of the belt can be greatly enhanced by taking special care in the creation of an adequate tracking mechanism. To obtain long-life operation and full value from the equipment, the correct tracking technique plays an important role. This paper deals with two tracking techniques: The skewed and the angled pulley axis. Numerical simulation results are compared with both measurements and an analytical approach. The advantages of numerical simulation compared to experimental tests are ease, convenience and the absence of any safety risk. Compared to analytical approaches the simulation is used for systems for which simple closed form analytic solutions are not possible. 展开更多
关键词 Flat belt belt tracking angled pulley axis skewed pulley axis.
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