نتایج جستجو برای: pressurized operation

تعداد نتایج: 216396  

Journal: :Agronomy 2021

Multioutlet hydrants as joint network infrastructure remain briefly addressed in the literature. Studies have always been limited to individual treatment of hydraulic components but not a whole element. This study presents main problems field multioutlet within for pressure irrigation networks Mediterranean agriculture. First, with interviews was carried out 30 water users associations (WUAs) b...

1999
F. H. Gahbauer J. W. Britton G. Hermann J. R. Hörandel D. Müller S. P. Swordy

A new instrument for direct measurements of heavy cosmic ray nuclei (oxygen to iron) in the energy range from about 10 to several 10 eV is described. The detector consists of a counter telescope with a proportional tube array and a transition radiation detector. Single wire proportional tubes are used which allow operation in the low pressure environment of stratospheric balloons without requir...

Journal: :Lubricants 2023

This study designed an externally pressurized bearing and analyzed the rotordynamics of a turbo expander for hydrogen liquefaction plant. The expander, comprising turbine compressor wheel assembled to shaft, lowered temperature helium refrigerant. Its rated speed was 75,000 rpm, gas selected support rotor. Pressurized used as lubricant operation. To design rotor–bearing system, we conducted per...

2017
S. S. Haggag

Although there have been some severe nuclear accidents such as Three Mile Island (USA), Chernobyl (Ukraine) and Fukushima (Japan), nuclear fission energy is still a source of clean energy that can substitute fossil fuels in a centralized way and in a great amount with commercial availability and economic competitiveness. Since the pressurized water reactor (PWR) is the most widely used nuclear ...

2012
Jung-Hoon Kim Chang-Seob Seo Seong-Sil Kim Hyeun-Kyoo Shin

This study compared Ojeok-san (Wuji-san in Chinese) decoctions produced using different extraction methods for variable times. Decoctions were extracted in pressurized or non-pressurized conditions for 60, 120, and 180 mins. We investigated the Ojeok-san extract yield, the total soluble solid content, the hydrogen ion concentration (pH), and the reference compound content. The extract yield and...

2014
T. M Kyrke-Smith R. F Katz A. C Fowler

Antarctic ice streams are associated with pressurized subglacial meltwater but the role this water plays in the dynamics of the streams is not known. To address this, we present a model of subglacial water flow below ice sheets, and particularly below ice streams. The base-level flow is fed by subglacial melting and is presumed to take the form of a rough-bedded film, in which the ice is suppor...

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