نتایج جستجو برای: رنگبری ecf

تعداد نتایج: 1235  

Journal: :Journal of environmental management 2009
Mohammad M Emamjomeh Muttucumaru Sivakumar

The word "electrocoagulation" (EC) will be sometimes used with "electroflotation" (EF) and can be considered as the electrocoagulation/flotation (ECF) process. Through the process of electrolysis, coagulating agents such as metal hydroxides are produced. When aluminium electrodes are used, the aluminium dissolves at the anode and hydrogen gas is released at the cathode. The coagulating agent co...

Journal: :Cellulose 2022

Abstract Several eucalyptus pulps (85% of cellulose) with different lignin and HexA content (unbleached, TCF ECF) as well cotton linters (97% were treated ozone (at pH doses) in order to modify its fibre-components. Special interest was given the introduction functional groups carbohydrates. The presence these mainly identified by chain scissions due carbonyl (CS C=O ) produced cellulose during...

Journal: :Separation and Purification Technology 2021

Harvesting has been recognized as a major bottleneck in any microalgae-based technology, making it relevant research topic the field. Among applicable technologies, electrocoagulation-flotation (ECF) devoted lot of attention an effective alternative to conventional metal salts addition. This paper reports and comments available literature on ECF, aiming at retrieving assessing main parameters a...

2017
Chao Zhang Hongyu Yang Wen Qin Chang Liu Zhigang Qi Nan Chen Kuncheng Li

Executive control function (ECF) deficit is a common complication of temporal lobe epilepsy (TLE). Characteristics of brain network connectivity in TLE with ECF dysfunction are still unknown. The aim of this study was to investigate resting-state functional connectivity (FC) changes in patients with unilateral intractable TLE with impaired ECF. Forty right-handed patients with left TLE confirme...

Journal: :Seizure 2004
Xiaolan Wang Neville Ratnaraj Philip N. Patsalos

PURPOSE Tiagabine is a unique antiepileptic drug with a novel mechanism of action. Whilst some limited data are available as to the peripheral blood pharmacokinetics of tiagabine, data regarding the kinetics of tiagabine in the central brain compartment are very limited. We therefore sought to investigate serum, cerebrospinal fluid (CSF) and frontal cortex and hippocampal extracellular fluid (E...

Journal: :Journal of bacteriology 2010
Yun Luo Kei Asai Yoshito Sadaie John D Helmann

Bacillus subtilis encodes seven extracytoplasmic function (ECF) σ factors. Three (σ(M), σ(W), and σ(X)) mediate responses to cell envelope-active antibiotics. The functions of σ(V), σ(Y), σ(Z), and σ(YlaC) remain largely unknown, and strong inducers of these σ factors and their regulons have yet to be defined. Here, we define transcriptomic and phenotypic differences under nonstress conditions ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده منابع طبیعی و علوم دریایی 1388

این پژوهش با هدف رنگبری با پراکسید هیدروژن خمیر شیمیایی- مکانیکی(cmp) بدون استفاده از سیلیکات سدیم و امکان جایگزینی هیدرکسید سدیم و سیلیکات سدیم با هیدرکسید منیزیم به عنوان یک منبع قلیایی ضعیف با هدف حل نمودن منمودارات زیست محیطی سیلیکات سدیم مورد بررسی قرار گرفته است. بدین منظور خمیر cmp رنگبری نشده مخلوط پهن برگان از کارخانه چوب و کاغذ مازندران تهیه گردید. مرحله پیش تیمار (q) به منظور حذف فلز...

Journal: :Microbiology 2004
Mika Yoshimura Kei Asai Yoshito Sadaie Hirofumi Yoshikawa

Extracytoplasmic function (ECF) sigma factors constitute a diverse family of proteins, within the class of the sigma 70 subunit of RNA polymerase. Most members of the family studied to date are known to regulate gene expression in response to stress conditions. The Bacillus subtilis genome encodes at least 17 distinct sigma factors, seven of which are members of the ECF subfamily. Among these, ...

Journal: :The Journal of clinical investigation 1969
M L Purkerson H Lubowitz R W White N S Bricker

Bicarbonate reabsorption is classically regarded as a rate-limited process characterized by saturation kinetics. The tubular maximum (Tm), however, varies with glomerular filtration rate. Thus bicarbonate reabsorption, in common with sodium reabsorption, is characterized by glomerulo-tubular balance. The examination of bicarbonate reabsorption is accomplished using the bicarbonate titration tec...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2002
Suhn Hee Kim Jeong Hee Han Chunhua Cao Sung Zoo Kim Kyung Woo Cho

To define developmental changes in atrial natriuretic peptide (ANP) secretion and in the cross talk between C-type natriuretic peptide (CNP) and ANP, we performed experiments in isolated perfused nonbeating cardiac atria isolated from rabbits between 1 and 8 wk of age. Changes in atrial pressure resulted in increases in atrial volume that rose with age and reached the peak value at 4 wk. A rise...

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