نتایج جستجو برای: low pressure ro membrane

تعداد نتایج: 1901968  

2014
SHU-YA CHEN TAE-KWON WEE YING-HWA KUO DAVID H. BROMWICH

The impact of global positioning system (GPS) radio occultation (RO) data on an intense synoptic-scale storm that occurred over the Southern Ocean in December 2007 is evaluated, and a synoptic explanation of the assessed impact is offered. The impact is assessed by using the three-dimensional variational data assimilation scheme (3DVAR) of the Weather Research and Forecasting (WRF) Model Data A...

2017
Dawood Eisa Sachit John N. Veenstra

In this work, three different types of Reverse Osmosis (RO) (Thin-Film Composite (SE), Cellulose Acetate (CE), and Polyamide (AD)) were used to perform foulant analysis (autopsy) study on the deposited materials from three different simulated brackish surface feed waters. The brackish surface water qualities represented the water quality in Iraqi marshes. The main foulants from the simulated fe...

Journal: :Clean technologies 2022

This study evaluates the performance of commercial reverse osmosis (RO) and nanofiltration (NF) membranes for removal metal ions from synthetic water surface carried north-west Lake Tanganyika in city Uvira, east Democratic Republic Congo. Metal ion analyses were performed by standardized ICP-MS ICP-OES methods. The RO membrane showed higher rejection high-concentration solutions (synthetic sam...

Journal: :Molecular biology of the cell 2001
I H Lee S Kumar M Plamann

Dynactin is a multisubunit complex that regulates the activities of cytoplasmic dynein, a microtubule-associated motor. Actin-related protein 1 (Arp1) is the most abundant subunit of dynactin, and it forms a short filament to which additional subunits associate. An Arp1 filament pointed-end--binding subcomplex has been identified that consists of p62, p25, p27, and Arp11 subunits. The functiona...

Journal: :The Tohoku journal of experimental medicine 1975
T Nakamura T Nakajima T Takishima N Suzuki S Arai N Suwa

A sensitive index was proposed for the determination of left ventricular compliance. In the isolated potassium-arrested canine left ventricle, the pressure-volume (P-V) relationship was expressed as deltaV=a-be-cP throughout the range of filling pressure from 0 to 40 cmH2O, where deltaV and P were the actual volume change and intraventricular pressure, and a, b and c were constants. Then, half-...

2014
Ronan K. McGovern Syed M. Zubair John H. Lienhard

The demand is rising for desalination technologies to treat highly saline brines arising from hydraulic fracturing processes and inland desalination. Interest is growing in the use of electrical desalination technologies for this application. The hybridization of electrodialysis (ED) with reverse osmosis (RO) allows high salinities (beyond the range of RO alone) to be reached while avoiding the...

2017
Stoller And Martínez - Férez

Although membranes are a mature technology, many aspects are still in development. The main handicap is membrane fouling, investigated by a plethora of researchers in the last years to convince investors to implement membranes as substitutes of a range of unit operations at industrial scale. In the field of wastewater treatments, this is especially problematic, given the low economic value of t...

Journal: :Hypertension 1991
W Fischli J P Clozel K el Amrani W Wostl W Neidhart H Stadler Q Branca

The goal of the present study was to characterize the new renin inhibitor Ro 42-5892 in vitro and in vivo. In vitro, Ro 42-5892 inhibited purified human renin and human plasma renin specifically with an IC50 of 0.7 nM and 0.8 nM, respectively. In vivo, Ro 42-5892 reduced mean arterial blood pressure in sodium-depleted marmosets and squirrel monkeys with as low a dose as 0.1 mg/kg orally. Higher...

Journal: :Desalination 2021

Chemical characterization of scaling and removal processes was performed in real time via Raman spectroscopy a bench-scale reverse osmosis (RO) system. A custom RO cross-flow cell integrated with microscope objective, allowing for analysis localized membrane scale removal. Permeate flux also measured to provide real-time metric comparison. commercial flat sheet, thin-film composite (TFC RO) sca...

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