J.D.Power 2020中国新车质量研究:四分之一车主因质量或性能好购买自主品牌

全球领先的消费者洞察与市场研究机构J.D.Power(君迪)正式发布的2020中国新车质量研究SM(IQS)显示,自主品牌形象五年来持续提升,越来越多中国消费者因为质量或性能好而购买自主品牌,自主品牌向上战略取得积极成效。2020年是J.D.Power连续第21年开展中国新车质量研究(IQS),也是J.D.Power在中国和美国同步启用全新IQS平台的第一年。     

Management's role in U.S. rail passenger decline, 1920–1941

Opinions vary as to whether the decline of American railroad passenger service can be attributed primarily to consumer choice or partly to structural impedances to the supply. Results are reported from testing the hypothesis that railroad management supplied service inappropriate in the new motor era: that management catered to a small, high-priced market, whereas it should have catered to a mass, low-priced market. An aggregate demand model with non-linear elasticity characteristics is estimated on railroad traffic between a sample of American cities for 1933. The model is sensitive to speed, fare and headway variables under the control of railroad management and reveals that there was a unique fare for a service of a given speed that maximized gross revenues. The observed fare for most of the 187 cases in the study was near or below the optimal fare, showing that rail managers judged their markets well, at least in the short run.     

D,ynll配变应用在缆车中的优越性

文章分析了D,ynll配电变压器能自动消除缆车变流设备产生的三次谐波等优点，从而能有效地提高缆车运行的安全性和可靠性，通过实践表明，这种配变电方式在索道缆车供电系统中具有广阔的应用前景。     

上海海事局:突出重点,科学管理

为上海航运中心发展创造良好的安全环境2012年,上海海事局在安全生产工作中突出重点,科学管理,辖区水上交通事故四项指标全面下降,安全形势大幅度好转,为上海航运中心发展创造了良好的安全环境。全年,局辖区水域共发生一般及以上等级水上交通事故24件、沉船12艘、死亡/失踪6人(其中1人为渔船人员)、事故直接经济损失10429.35万元。与去年同期相比,事故件数下降22.6%、沉船艘数下降29.4%、死亡失踪人数下降81.8%,直接经济损失下降45.3%。     

厦门金旅:D8用品质助力企业华美转型

正近年来,新能源客车市场的火爆,吸引了众多企业前来跨界掘金,也不断改写行业格局。不过,在蜂拥而上的市场之下,随之暴露的一些问题也带来行业的深度反思。中国公路学会客车分会副秘书长佘振清更是直言:"让技术领先和产品优秀重新回归本源,才是新能源客车持续发展的正确方向。"面对汹涌而来的新进入者所带来的挑战,有