نتایج جستجو برای: equivalent activities raeq range from 21050
تعداد نتایج: 6140486 فیلتر نتایج به سال:
BACKGROUND The aim of this study is to establish the energy expenditure (EE) of a range of child-relevant activities and to compare different methods of estimating activity MET. METHODS 27 children (17 boys) aged 9 to 11 years participated. Participants were randomly assigned to 1 of 2 routines of 6 activities ranging from sedentary to vigorous intensity. Indirect calorimetry was used to esti...
forage is the main product of rangelands. so, determining its economic value as one of the main important nonmonetary functions can help managers to improve planning and optimal utilization management of rangelands. the main purpose of this study is to estimate the economic valuation of the forage of summer rangelands in nour-roud watershed basin in mazandaran province. consequently, total fora...
gol-e-gohar iron ore mine of sirjan in southern part of iran is a large open pit that operates below the groundwater table and during mining operation, dewatering is required to prevent operation processes from flooding. current operation is going on by digging wells in or out of the pit and pumping to prevent flooding. as a result of the former dewatering operation a vast deep cone of depressi...
this study compared the different effects of form-focused guided planning vs. meaning-focused guided planning on iranian pre-intermediate students’ task performance. the study lasted for three weeks and concentrated on eight english structures. forty five pre-intermediate iranian students were randomly assigned to three groups of guided planning focus-on-form group (gpfg), guided planning focus...
Nesse trabalho foi utilizada a técnica da espectrometria gama de alta resolução com detector HPGe e o pacote software GENIE 2000 para determinação concentração atividade dos radionuclídeos 226Ra, 232Th 40K presente em amostras solo, risco radiológico visitantes do Núcleo Piraquara, importante Trilha Ecoturismo Parque Estadual Pedra Branca – RJ. Os resultados apresentaram concentrações atividade...
data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...
Tritium is an isotope of hydrogen which emit beta particles in energy range of 5 – 18,6 keV, and has relatively long half life of 12.3 years. In the environment, tiritum is originated both from the nature and human activities. Naturally, tritium is produced in the atmosphere by interaction of cosmic rays with the nuclei of atoms present in the air, and estimated to contribute the annual effecti...
Unlike battery electric vehicles, extended-range vehicles have one more energy source, so a reasonable management strategy (EMS) is crucial to the fuel economy of vehicles. In this paper, an adaptive equivalent consumption minimization (A-ECMS)-based proposed for vehicle. The (ECMS), which utilizes Pontryagin’s minimum principle (PMP), introduced design EMS. Compared with other ECMS strategies,...
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