نتایج جستجو برای: the imposing beard
تعداد نتایج: 16052995 فیلتر نتایج به سال:
The purpose of this study was to assess the effect of personal variables on the fit of the respirators used by firefighters and workers in highly polluted environments. However, resistance from many plants managers was met to conduct the study on their workers. Therefore, we were forced to limit the study on firefighters who were found very cooperative. Forty volunteer firefighters from differe...
The shape of rain drops has been studied in various ways over the past several decades, amongst them being (i) wind-tunnel measurements by Pruppacher and Beard (1970), (ii) numerical modelling of equilibrium drop shapes by Beard and Chuang (1987) and (iii) laboratory measurements by Beard et al. (1991) as well as Andsager et al. (1999). More recently, it has been shown that with a fully calibra...
Multirotor helicopters are increasingly popular platforms in the robotics community. Making them fully autonomous requires accurate state estimation. We review an improved dynamic model for multirotor helicopters and analyze the observability properties of an estimator based on this model. The model allows better use of IMU data to facilitate accurate state estimates even when updates from a se...
Ciro Casanova, Jose M Marin, Cristina Martinez-Gonzalez, Pilar de Lucas-Ramos, Isabel Mir-Viladrich, Borja Cosio, German Peces-Barba, Miryam Calle-Rubio, Ingrid Solanes-García, Ramón Agüero, Alfredo de Diego-Damia, Nuria Feu-Collado, Inmaculada Alfageme, Rosa Irigaray, Eva Balcells, Antonia Llunel, Juan Bautista Galdiz-Iturri, Margarita Marín, Juan José Soler, Jose Luis Lopez-Campos, Joan B Sor...
lead-paint in their products, though public health officials, notably in Boston and Baltimore, continued to identify cases in which lead-paint was implicated throughout the 1930s. The problem then largely disappeared from public view until the late 1940s and 1950s when hundreds of children started to appear in urban hospitals with acute plumbism. The trouble, it turned out, was lead-paint flaki...
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