منابع مشابه
Thermal comfort performance of sports garments with objective and subjective measurements
Subjective wear trials have been carried out to determine thermal comfort performance of knitted sports garments whose objective thermal comfort parameters are determined in a preceding study in fabric form. Physiological measurements (skin and microclimate temperature, microclimate relative humidity, heart rate and sweat amount) and psychological rating results (coolness, dampness and comfort)...
متن کاملCooling garments—A review
Thermal discomfort is one the major challenges during work in hot and/or humid environments like mines, foundries and arid/desert regions. Heat and moisture management is the key to prevent the workers from heat stress. Personnel protective garments alone are not sufficient to provide thermal neutrality. Auxiliary cooling garments are required to aid the process of human body cooling. This revi...
متن کاملAerodynamics of Spheres
Introduction This discussion is a qualitative treatment of a topic that is usually treated rigorously and quantitatively in engineering textbooks. This discussion is intended for the general audience of nonspecialists and will attempt to convey the main ideas behind aerodynamics of spheres in a qualitative manner, with a minimum number of mathematical equations. As the Latin roots of the word i...
متن کاملStudies of Baseball Aerodynamics
Analysis of the aerodynamic forces acting on baseball pitches from major league games reveals a large variance in the measured coefficients of lift and drag. We have examined possible explanations for this effect and found that, while uncertainties introduced by measurement error and the method of reporting major league pitch trajectories do explain some of the spread, the reasons for the large...
متن کاملAerodynamics of Race Cars
Race car performance depends on elements such as the engine, tires, suspension, road, aerodynamics, and of course the driver. In recent years, however, vehicle aerodynamics gained increased attention, mainly due to the utilization of the negative lift (downforce) principle, yielding several important performance improvements. This review briefly explains the significance of the aerodynamic down...
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ژورنال
عنوان ژورنال: Procedia Engineering
سال: 2011
ISSN: 1877-7058
DOI: 10.1016/j.proeng.2011.05.100