نتایج جستجو برای: hydrate inhibition unit

تعداد نتایج: 723393  

2017
Xiaofeng Yu Lijun Zhao Zhiping Yu Changzheng Yu Jianfei Bi Binglong Sun Haibo Cong

As a specific inhibitor of neutrophil elastase, sivelestat sodium hydrate has primarily been used in the treatment of acute lung injury caused by various factors since its approval in 2002. Sivelestat sodium hydrate also improves post-traumatic knee osteoarthritis (KOA), although its underlying mechanisms of action have yet to be elucidated. The aim of the current study was to determine if sive...

Journal: :Physical chemistry chemical physics : PCCP 2015
Seongmin Park Hyery Kang Kyuchul Shin Yutaek Seo Huen Lee

The structures and the guest-host distributions of iso-propylamine (i-PA) and n-propylamine (n-PA) hydrates with hydrogen as a secondary guest were identified by powder X-ray diffraction and Raman spectroscopic analysis. The structure of 11.1 mol% i-PA + H2 hydrate was identified to be hexagonal (space group P63/mmc) with a few unindexed diffraction peaks, while 5.6 mol% i-PA + H2 hydrate had a...

2006
K. C. Hester E. T. Peltzer

A Raman spectrometer extensively modified for deep ocean use was used to measure synthetic hydrates formed in an ocean environment. This was the first time hydrates formed in the ocean have been measured in situ using Raman spectroscopy. Gas hydrates were formed in situ in the Monterey Bay by pressurizing a Pyrex cell with various gas mixtures. Raman spectra were obtained for sI methane hydrate...

Journal: :Neurosciences 2001
M M Jan M F Aquino

OBJECTIVE Sleep is a known activator of epileptiform discharges on electroencephalography. Chloral hydrate is used frequently for electroencephalography sedation. Our objectives were to study the value and limitations of chloral hydrate. METHODS One hundred and fifty nine consecutive pediatric electroencephalograms were included prospectively. One electroencephalography technologist collected...

Journal: :IOP conference series 2022

Abstract The article proposes an algorithm of actions to optimize the consumption methanol which is used as inhibitor hydrate formation in process chain oil and gas production. proposed approach was developed analyzing supply system planning measures it for Eastern section Orenburg condensate field. consists five sections a greater extent affect efficiency inhibition are closely related each ot...

2008
Laura E. Dieker Craig J. Taylor Carolyn A. Koh

Cyclopentane hydrate interparticle adhesion force measurements were performed in pure cyclopentane liquid using a micromechanical force apparatus. Cyclopentane hydrate adhesion force measurements were compared to those of cyclic ethers, tetrahydrofuran and ethylene oxide, which were suspected to be cyclic ether-lean and thus contain a second ice phase. This additional ice phase led to an over-p...

2013

Major uses Chloral hydrate (synthesized in 1832 and introduced into medicine 1869) is the oldest member of sedative-hypnotic drugs. To the same group belong paraldehyde, bromide, urethane, and sulfonal. Metabolite of chloral hydrate, trichloroethanol, is also an excellent hypnotic agent, but is not often used as such due to its physical and irritant properties. At present, chloral hydrate is la...

In recent years, the feasibility of utilizing gas hydrates in industrial systems draws much attention as a subject of engineering studies. Despite the suggested applications for gas hydrate in transportation and storage of natural gas, desalination of water, etc., there have been few applied industrial experiences with gas hydrates. There are several patents and papers on promotion of gas hydra...

Journal: :iranian journal of radiation research 0
h. ojha department of radiation genetics and epigenetics, institute of nuclear medicine and allied sciences, delhi 110054, india k. sharma department of radiation genetics and epigenetics, institute of nuclear medicine and allied sciences, delhi 110054, india s. kallepalli department of radiation genetics and epigenetics, institute of nuclear medicine and allied sciences, delhi 110054, india s. raina department of radiation genetics and epigenetics, institute of nuclear medicine and allied sciences, delhi 110054, india p.k. agrawala department of radiation genetics and epigenetics, institute of nuclear medicine and allied sciences, delhi 110054, india

background: dna damage is one of the major consequences of radiation exposure onto the biological systems. a series of compounds including flavanoids were found to render dna protection against radiation damage. in this study we elucidated the potential of rutin and rutin hydrate to protect plasmid dna against damage induced by irradiation. materials and methods: dpph and hydroxyl radical scave...

Journal: :Chemphyschem : a European journal of chemical physics and physical chemistry 2003
Yu-Taek Seo Huen Lee Igor Moudrakovski John A Ripmeester

Clathrate hydrates are crystalline compounds formed by a physically stable interaction between water and relatively small guest molecules. Under suitable conditions of guest pressure and temperature, water molecules, via hydrogen bonds, form into polyhedral cavities that connect to give space-filling frameworks. Because of partial cage filling, these crystalline compounds are nonstoichiometric....

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