نتایج جستجو برای: oxygen separation

تعداد نتایج: 329721  

Journal: :Scientific reports 2016
Juan Manuel Restrepo-Flórez Martin Maldovan

Being able to manipulate mass flow is critically important in a variety of physical processes in chemical and biomolecular science. For example, separation and catalytic systems, which requires precise control of mass diffusion, are crucial in the manufacturing of chemicals, crystal growth of semiconductors, waste recovery of biological solutes or chemicals, and production of artificial kidneys...

Journal: :Nature communications 2014
Sergey N Maximoff Berend Smit

Metal-organic frameworks are nano-porous adsorbents of relevance to gas separation and catalysis, and separation of oxygen from air is essential to diverse industrial applications. The ferrous salt of 2,5-dihydroxy-terephthalic acid, a metal-organic framework of the MOF74 family, can selectively adsorb oxygen in a manner that defies the classical picture: adsorption sites either do or do not sh...

1998
S. Sundar Kumar Iyer Xiang Lu Jingbao Liu Jing Min Zhineng Fan Paul K. Chu Chenming Hu Nathan W. Cheung

Separation by plasma implantation of oxygen (SPIMOX) has been suggested as an economic alternative for separation by implantation of oxygen (SIMOX) to form the silicon-oninsulator (SOI) structure. The chief advantage of SPIMOX is the high throughput and low-cost implanter. The operation regime of implantation for SPIMOX, which uses dc plasma immersion ion implantation (PIII) for the oxygen impl...

2017
Kyung Ho Cho Dong Won Hwang

The present invention relates to a nitrogen adsorbent having nitrogen selective adsorptivity by including an organic inorganic hybrid nanoporous material having a coordina tively unsaturated metal site with density of 0.2 mmol/g to 10 mmol/g in a skeleton, Surface or pore; and use thereof, Such as a device separating nitrogen from a gas mixture containing nitrogen and methane, a pressure Swing ...

1998
R. A. Beach E. C. Piquette T. C. McGill T. J. Watson

The incorporation of oxygen onto the (3x3) reconstructed surface of GaN(0001) has been studied using X-ray Photoelectron Spectroscopy (XPS). It was found that the (3x3) reconstruction corresponds to a fractional Ga adlayer atop a Ga terminated GaN surface. Our measurements indicate a surface coverage of 1.15 ± 0.2 monolayers of relaxed Ga on the surface. The binding energy separation between th...

2004
Maurice Burg Jack Orloff

BURG, MAURICE B., AND JACK ORLOFF. Oxygen com~mpte'on and active ~WI..S$UW~ in sefiurated renal tubules. Am. J. Physiol. 203 (2) : 327-3309 1962.-A method for the separation of intact viable cells from rabbit renal cortex has been developed. Separation is achieved by treatment of the excised kidney with the proteolytic enzyme collagenase. The resultant suspension consists principally of short l...

2016
Zhiyong Hu Lili Xu Zhirui Zhu Robert Seal Patrick M. McQuillan Kazuo Hanaoka.

The objective of this study was to evaluate the effect of hypothermic cardiopulmonary bypass (CPB) on cerebral oxygen saturation (rSO2), internal jugular bulb venous oxygen saturation (SjvO2), mixed venous oxygen saturation (SvO2), and bispectral index (BIS) used to monitor cerebral oxygen balance in pediatric patients.Sixty American Society of Anesthesiologists Class II-III patients aged 1 to ...

Journal: :The American journal of physiology 1962
M B BURG J ORLOFF

BURG, MAURICE B., AND JACK ORLOFF. Oxygen com~mpte'on and active ~WI..S$UW~ in sefiurated renal tubules. Am. J. Physiol. 203 (2) : 327-3309 1962.-A method for the separation of intact viable cells from rabbit renal cortex has been developed. Separation is achieved by treatment of the excised kidney with the proteolytic enzyme collagenase. The resultant suspension consists principally of short l...

Journal: :Angewandte Chemie 2022

Abstract Oxygen is a critical gas for medical and industrial settings. Much of today's global oxygen supply via inefficient technologies such as cryogenic distillation, membranes or zeolites. Metal–organic frameworks (MOFs) promise superior alternative separation, their fundamental chemistry can in principle be tailored reversible selective capture. We evaluate the characteristics uptake by MOF...

2001
Maria Nowakowska Mariusz Kępczyński

Novel polymeric photosensitizers for singlet oxygen production in water are described. The polymers contain rose bengal (4,5,6,7-tetrachloro-2',4',5',7'–tetraiodo-fluorescein) chromophores covalently attached to the polymer chain. The quantum yields of singlet oxygen formation and photooxidation of phenol in water have been determined. The methods of separation of photosensitizer from the react...

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