نتایج جستجو برای: gas treating

تعداد نتایج: 329197  

Journal: :Bioresource technology 2012
Hong Chen Chunping Yang Guangming Zeng Shenglian Luo Guanlong Yu

A tubular biofilter (TBF) which consisted of a closed chamber, a polyurethane sponge tube and a nutrient solution distributor was developed and evaluated under organic loading rates (OL) ranging from 18.7 to 149.3 gm(-3)h(-1) and gas empty bed residence times (EBRTs) of 30-5.0 s. Using toluene as model VOC, the startup of the TBF lasted approximately 7 weeks. The removal efficiency decreased fr...

Journal: :Lab on a chip 2011
Po Ki Yuen Michael E DeRosa

This article presents a simple, low-cost method of fabrication and the applications of flexible polystyrene microfluidic devices with three-dimensional (3D) interconnected microporous walls based on treatment using a solvent/non-solvent mixture at room temperature. The complete fabrication process from device design concept to working device can be completed in less than an hour in a regular la...

2006
William Durante Fruzsina K Johnson Robert A Johnson

Carbon monoxide (CO) is an endogenously derived gas formed from the breakdown of heme by the enzyme heme oxygenase. Although long considered an insignificant and potentially toxic waste product of heme catabolism, CO is now recognized as a key signaling molecule that regulates numerous cardiovascular functions. Interestingly, alterations in CO synthesis are associated with many cardiovascular d...

Journal: :Australian and New Zealand journal of public health 2015
Rosemary Wyber Timothy D Johnson Bhavini Patel

Australian and New Zealand Journal of Public Health 1 © 2015 Public Health Association of Australia Benzathine benzylpenicillin G (BPG) is a beta-lactamase antibiotic developed in 1951.1 Administered intramuscularly, BPG has low in vivo solubility, producing prolonged serum penicillin concentrations. This makes BPG suitable for treating penicillin-sensitive organisms responsive to extended, low...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1390

یکی از روش های جدید و مهم در تولید پودرهای ریز در ابعاد میکرو و نانو، استفاده از سیالات فوق بحرانی (بویژه co2) می باشد. سیستم های فوق بحرانی که جهت تولید ذرات ریز مورد استفاده قرار می گیرند، به طور معمول دوجزئی (شامل جزء سنگین جامد و حلال فوق بحرانی در فرایند ress) و یا سه جزئی (شامل حلال آلی، جزء جامد و ضدحلالِ فوق بحرانی در فرایند gas) هستند که در آنها سیال فوق بحرانی در تماس با جزء حل شونده و...

2002
Tsukasa INAOKA Megumi NAGANO Takao KITANO Kayo USHIJIMA Keiko MINAMOTO Ryuji TASAKI Atsuko KOYANAGI

Biological Monitoring of Styrene in FRPMaking Small Industries in Kumamoto, Japan— Winter-Summer Difference and Effect of Protective Masks in Practical Working Conditions—: Tsukasa INAOKA, et al. Department of Public Health, Kumamoto University School of Medicine— Objective: Studies were carried out in Kumamoto, Japan to examine 1) the winter-summer differences in the average individual exposur...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز 1390

دریزو فرایندی است برای افزایش خلوص گلایکول که معمولا از یک حلال هیدروکربنی استفاده می کند. این پروسه از کمک گاز عریانگر (stripping gas ) بی نیاز بوده و با هزینه کمتر می تواند گاز خشک با نقطه شبنم پایین تر را به وجود بیاورد. شرکت dow chemical co. توانست این پروسه را در سال 1970 به صورت رسمی به بازار معرفی کند. شرکت opc نیز این تکنولوژی را در سال 1985 به کار برد و با ارائه کارهای جدیدتردر این ...

2003
S. L. Everitt

The effects of fluid viscoelasticity on the expansion of gas bubbles in polymer foams for the cases of reactive and non-reactive polymers are investigated. For non-reactive polymers, bubble expansion is controlled by a combination of gas diffusion and fluid rheology. In the diffusion limited case, the initial growth rate is slow due to small surface area, whereas at high diffusivity initial gro...

2003
Joyce A. Wahr

N AVERAGE adult at rest consumes approximately A 100 million trillion molecules of oxygen per second; with virtually no capacity for oxygen storage, cessation of oxygen delivery quickly results in irreversible cellular damage. The human cardiopulmonary system functions remarkably well in healthy individuals, maintaining the mitochondrial oxygen tension (greater than 1 mmHg) required for aerobic...

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