نتایج جستجو برای: supercavitating vehicles
تعداد نتایج: 59488 فیلتر نتایج به سال:
vehicles have an important role in passenger transportation in iran. this paper runs an economic appraisal on intercity buses, minibuses and public four-seated conveyances of mazandaran province in view point of private and public sectors. the benefit-cost ratio, costs adjusted efficiency, necessary capital for job creation for a labor force and labor force adjusted productivity, which are used...
BACKGROUND Public health surveillance is often concerned with the analysis of health outcomes over small areas. Funnel plots have been proposed as a useful tool for assessing and visualizing surveillance data, but their full utility has not been appreciated (for example, in the incorporation and interpretation of risk factors). METHODS We investigate a way to simultaneously focus funnel plot ...
BACKGROUND Using a cohort of British Columbian male sawmill workers, we conducted a nested case-control study of the impact of rural compared to urban residence as well as rural/urban migration patterns in relation to hospitalization for non-work injury. We postulate that for many types of non-work injuries, rates will be higher in rural communities than in urban ones and that rates will also b...
DNA material is now collected routinely from crime scenes for a wide range of offenses and its timely processing is acknowledged as a key element to its success in solving crime. An analysis of the processing of approximately 1500 samples of DNA material recovered from the property crime offenses of residential burglary, commercial burglary, and theft of motor vehicle in Northamptonshire, U.K. ...
this review presents a brief outline of our current knowledge of the structure and chemical composition of the outer membrane vesicles (omvs), originating from the surface of gram negative bacteria including their outer membrane proteins and lipopolysaccharides. moreover, the functional roles and applications of omvs in medical research such as omv-based vaccines, omv adjuvants properties, omv ...
in this study, the time-average velocity in the near wake of a two-dimensional notch-back car model that located in the wake of a trailer has been investigated. the present experiments were carried out in an open circuit low-speed wind tunnel made by fara sanjesh saba ltd, in iran and was used to simulate uniform air flow. results show: at the close spacing, time- average velocity profile at th...
Introduction: Cars can cause whole body vibration with different intensities which result in discomfort and musculoskeletal disorders in the exposed persons. Heavy mine vehicles based on the working environment, capacity, and power can produce considerable vibration to be transferred to the operator. The purpose of this study was to assess whole body vibration in the drivers of heavy mine vehic...
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