نتایج جستجو برای: water pressure

تعداد نتایج: 926030  

Journal: :Proceedings. Biological sciences 2009
Nélia C Mestre Sven Thatje Paul A Tyler

Early ontogenetic adaptations reflect the evolutionary history of a species. To understand the evolution of the deep-sea fauna and its adaptation to high pressure, it is important to know the effects of pressure on their shallow-water relatives. In this study we analyse the temperature and pressure tolerances of early life-history stages of the shallow-water species Mytilus edulis. This species...

2006
S. Basu

In situ non-intrusive measurements of water vapor partial pressure and temperature were performed simultaneously along two gas channels on he cathode side of a PEM fuel cell using tunable diode laser absorption spectroscopy. This measurement technique developed by us was utilized arlier to make measurements in a single bipolar plate channel of a prototype PEM fuel cell. The current study examin...

Effect of air cushion layer right before impact of a rigid body onto water surface has been investigated in this paper. The study is mainly focused on evaluation of cushioning pressure and the resulting free surface elevation. The air flow is assumed to be an irrotational flow which is governed by Laplace equation. The air problem and the resulting response of the water free surface are suppose...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2010
Robert L Thunhorst Terry G Beltz Alan Kim Johnson

We investigated water drinking and arterial blood pressure responses to intravenous infusions of ANG II in young (4 mo), middle-aged adult (12 mo), and old (29 mo) male Brown Norway rats. Infusions of ANG II began with arterial blood pressure either at control levels or at reduced levels following injection of the vasodilator minoxidil. Under control conditions, mean arterial pressure (MAP) in ...

2006
S. Basu M. W. Renfro H. Gorgun

In situ, line-of-sight measurements of water vapor partial pressure and temperature were performed in a gas channel on the cathode side of an perating PEM fuel cell. Tunable diode laser absorption spectroscopy was employed for these measurements for which water transitions sensitive o temperature and partial pressure were utilized. The previously demonstrated methodology for water partial press...

2010
D. Nicolas Espinoza Carlos Santamarina

[1] The interfacial interaction between mineral surfaces and immiscible fluids determines the efficiency of enhanced oil or gas recovery operations as well as our ability to inject and store CO2 in geological formations. Previous studies have shown that the interfacial tension and contact angle in CO2‐water‐mineral systems change noticeably with fluid pressure. We compile previous results and e...

In the present paper, the effect of water-CuO nanofluid on the radiator heat transfer of an automobile, Peugeot 405 XU7 engine type is investigated experimentally. The experiments are carried out for the radiator water (water-ethylene glycol with a volume fraction of 80-20, respectively) as a base fluid and water-CuO nanofluid with the volume fraction of 0.5% and 1%. Sodium Dodecyl Sulfate (SDS...

Journal: :جغرافیا و مخاطرات محیطی 0
حسن لشکری علی اکبر متکان حسین عساکره یونس خسروی

introduction identification and analysis of time-series behavior of the climatic elements and processes upon them are the basic factors of climatology science and has an important role in management and environmental planning. in general, the behavior of climatic elements are observed in 3 form: trend, oscillation and fluctuation. these behaviors will help us to identify more the climate change...

2002
Wallace Wilhelm L. N. Mielke J. R. Gilley W. W. Wilhelm

reduce the amount of water used, resulting in savings Low-pressure sprinkler irrigation systems have the potential to of both water and energy. save energy, but also may aggravate soiland water-management Center-pivot systems with high pressure nozzles reproblems. The objective of this research was to determine the influquire relatively large amounts of energy to develop ence of center-pivot sp...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید