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Ship safety index

This paper develops a new quantitative safety index for each worldwide sea-going vessel based on their condition information and safety records. The safety index can generate a relative risk score using binary logistic regression method and a dataset with both static and dynamic information covering over 90% of the world sea-going merchant fleet. It has a widely potential usage for both industry and academic research, e.g., for port authorities to determine whether an on board inspection is needed; for insurers to determine premium rate; and for shipowners to identify functional areas for repair and maintenance.     

公路工程估算新旧指标对比分析

公路工程新估算指标已经发布实施,新估算指标在指标项目(子目)、工效水平、工程内容和消耗量等方面都发生了较大的变化,本文归纳总结了新旧指标的主要差异,旨在新旧指标过渡时期,提醒估算编制人员在使用新指标时应从对旧指标的理解中解脱出来,深入了解指标编制的变化及其使用方法。