نتایج جستجو برای: internal recirculation
تعداد نتایج: 236034 فیلتر نتایج به سال:
We present a thermal emission spectrum of the bloated hot Jupiter HAT-P-32Ab from a single eclipse observation made in spatial scan mode with the Wide Field Camera 3 (WFC3) aboard the Hubble Space Telescope (HST). The spectrum covers the wavelength regime from 1.123 to 1.644μm which is binned into 14 eclipse depths measured to an averaged precision of 104 parts-per million. The spectrum is unaf...
Adult male gerbils were submitted to 5-minute cerebral ischemia by bilateral carotid artery occlusion. At the end of ischemia and at various recirculation times ranging from 15 to 120 minutes, brains were frozen in situ and the regional distribution of ATP, glucose, and tissue pH was studied on coronal cryostat sections by bioluminescent and fluoroscopic techniques. During ischemia ATP was comp...
Flow distortion over a forested hill is asymmetric, forming a recirculation region on the lee slope that increases the complexity in understanding atmosphere– biosphere interaction. To understand the complexity, we examine the effect of the geometry of forested hills on recirculation formation, structure, and related CO2 transport by performing numerical simulations over doubleforested hills. T...
Abstract Biogas upgrading from anaerobic digestion of waste frying oils (WFO) was accessed in this study. For that, two bioreactors (Rb-biogas-lift bioreactor with gas and liquid recirculation, Rc-control reactor recirculation) were fed three times per week, a mixture WFO, glycerol volatile fatty acids (VFA). Rb produced 1.4 more biogas higher methane content (79%) than Rc (67%). Higher relativ...
In this study three-dimensional numerical models were refined to predict reactive processes in disinfection contact tanks (CTs). The methodology departs from the traditional performance assessment of contact tanks via hydraulic efficiency indicators, as it simulates directly transport and decay of the disinfectant, inactivation of pathogens and accumulation of by-products. The method is applied...
The purpose of this research was develop a biological nutrient removal (BNR) system which has low energy consumption, sludge production, and land usage. These indicate that BNR system could be a alternative of future wastewater treatment in ubiquitous city(U-city). Organics and nitrogen compounds could be removed by this system so that secondary or tertiary stages of wastewater treatment satisf...
This paper documents the application of exhaust gas fuel reforming of two alternative fuels, biodiesel and bioethanol, in internal combustion engines. The exhaust gas fuel reforming process is a method of on-board production of hydrogen-rich gas by catalytic reaction of fuel and engine exhaust gas. The benefits of exhaust gas fuel reforming have been demonstrated by adding simulated reformed ga...
Attaining a good level of internal comfort is possible by controlling various parameters. Among all, the thermo-hygrometric and indoor air quality are fundamental importance. This research developed with aim verifying following installation passive cooling device in historic building located province L’Aquila municipality Poggio Picenze climatic zone E. aims to verify functioning ventilation du...
spray drying is one of the most important processes applied in the industry. the equipment used in this process evaporates water in a very short time and so, need a lot of energy. in this work, we used microsoft excel as an analysis tool for the optimization of fuel usage in this dryer. we have described the process in terms of thermodynamic calculations and mass and heat balance equations. our...
Abstract. Ball screws are mechanism to convert the rotational into linear motion and viceversa widespread in a variety of different sectors. A detailed high-fidelity dynamic mathematical model such component is paramount several fields and, particular, definition PHM system for flight control EMAs order increase their reliability. In fact they can be used as virtual test bench on which inject a...
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