نتایج جستجو برای: koh concentration 2

تعداد نتایج: 2791063  

2016
Hang Yu Wenliang Zhang Ting Li Lei Zhi Liqin Dang Zonghuai Liu Zhibin Lei

Porous carbon nanosheets (aCS) formed by carbonization and chemical activation of biomass cornstalk are presented for capacitive energy storage. The obtained carbon possesses a two-dimensional (2D) sheet-like structure which is mainly composed of abundant micropores. Depending on the amount of KOH used in the activation step, the specific surface area of the carbon sheets varies from 388 to 173...

Journal: :The British journal of ophthalmology 2006
M J Bharathi R Ramakrishnan R Meenakshi S Mittal C Shivakumar M Srinivasan

AIMS To determine the sensitivity, specificity and predictive values of potassium hydroxide (KOH) wet mount, Gram stain, Giemsa stain and Kinyoun's acid-fast stain in the diagnosis of infective keratitis. METHODS A retrospective analysis of all patients with clinically diagnosed infective keratitis presenting between September 1999 and September 2002 was carried out. Corneal scrapes were take...

Journal: :Annals of dermatology 2010
Sang-Hee Seo Hyun-Woo Chin Dong-Wook Jeong Hyun-Woo Sung

BACKGROUND Although molluscum contagiosum (MC) resolves spontaneously, there are several reasons to treat this dermatological disorder. OBJECTIVE To evaluate the safety and efficacy of 5% imiquimod cream versus 10% potassium hydroxide (KOH) solution in treating MC, and to propose the mechanism of cure by observing the histological findings. METHODS Imiquimod or KOH were applied by the patie...

F. Bakhtiarzadeh M.R. Allahgholi Ghasri N. Tafreshi R. M. A. Tehrani, S. Ab Ghani

For the first time this study reported the success of using nanocrystalline hexagonal close-packed (hcp) nickel (Ni) modified composite graphite (CG) electrode (hcp-nano Ni/CG) for the electrocatalytic oxidation of glycerol in alkaline medium (0.1 M KOH). The hcp-nano Ni/CG electrode had an improve response and specificity on the electrocatalytic oxidation of glycerol over the bare CG. The elec...

F. Bakhtiarzadeh M.R. Allahgholi Ghasri N. Tafreshi R. M. A. Tehrani, S. Ab Ghani

For the first time this study reported the success of using nanocrystalline hexagonal close-packed (hcp) nickel (Ni) modified composite graphite (CG) electrode (hcp-nano Ni/CG) for the electrocatalytic oxidation of glycerol in alkaline medium (0.1 M KOH). The hcp-nano Ni/CG electrode had an improve response and specificity on the electrocatalytic oxidation of glycerol over the bare CG. The elec...

Journal: :Results in engineering 2023

The aim of this experimental research is to investigate the effect different alkali solutions, their concentration, and soaking time on tensile strength bamboo fiber bundles. results will suggest method extract in order develop biodegradable composite materials future. Bamboo strips were mechanically separated from Rough Giant Bamboos, they soaked three solutions based NaOH, KOH, ash with indiv...

2013
Duoduo Wang Haiyan Zhang Fuwang Wu Taotao Li Yuxiang Liang Xuewu Duan

To investigate the modification of cell wall polysaccharides in relation to aril breakdown in harvested longan fruit, three pectin fractions (WSP, water soluble pectin; CSP, CDTA-soluble pectin; ASP, alkali soluble pectin) and one hemicellulose fraction (4 M KOH-SHC, 4 M KOH-soluble hemicellulose) were extracted, and their contents, monosaccharide compositions and molecular weights were evaluat...

2017
C. K. Ranaweera P. K. Kahol M. Ghimire S. R. Mishra Ram K. Gupta

Interconnected hollow-structured carbon was successfully prepared from a readily available bio-waste precursor (orange peel) by pyrolysis and chemical activation (using KOH), and demonstrated its potential as a high-performing electrode material for energy storage. The surface area and pore size of carbon were controlled by varying the precursor carbon to KOH mass ratio. The specific surface ar...

Journal: :Physical chemistry chemical physics : PCCP 2016
E Jiménez M Antiñolo B Ballesteros A Canosa J Albaladejo

The gas phase chemistry of neutral-neutral reactions of interest in the interstellar medium (ISM) is poorly understood. The rate coefficients (kOH) for the majority of the reactions of hydroxyl (OH) radicals with interstellar oxygenated species are unknown at the temperatures of the ISM. In this study, we present the first determination of kOH for HC(O)OCH3 between 22.4 ± 1.4 and 64.2 ± 1.7 K. ...

Abstract In this study , palladium nano-particles were electro deposited galvano - statically on carbon black powder (Vulcan XC -72R). The catalytic activity for electro - oxidation of ethanol and methanol in alkaline media were studied by cyclic voltammetry and linear sweep voltammetry techniques. The results indicated that the electro-oxidation of ethanol and methanol strongly depends o...

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