نتایج جستجو برای: potassium hydroxide koh

تعداد نتایج: 92112  

Journal: :Chemical Industry & Chemical Engineering Quarterly 2023

The various purification methods have been developed to improve the quality local salt, NaCl content > 94%. Bentonite is one of materials used as binder impurities in purification. purpose study was synthesis a modified bentonite using alkaline solution, which includes natrium hydroxide (NaOH) and potassium (KOH) with concentrations (1, 1.5, 2, 2.5 M) determined level Na+, Ca2+ Mg2+ metals A...

Journal: :Minerals 2023

This study presents the strength development and durability of heat non-heat-cured geopolymer mortars (GMs) produced using metakaolin (MK), ground granulated blast-furnace slag (GGBFS), silica fume (SF), calcined perlite (GCP), raw (RP), potassium hydroxide (KOH), sodium metasilicate (Na2SiO3), standard sand, tap water. An optimal combination MK with various pozzolans constant solid/liquid alka...

Journal: :International journal of dermatology, venereology and leprosy sciences 2023

Children are more susceptible to fungal infections. Hair infection by agents, also called trichomycoses, is one of the common concerns in human beings. Dermatophytes, Malassezia species and organisms causing piedra mycological agents hair Tinea Capitis (TC) an scalp shaft surrounding caused dermatophytes. Aim: To study clinical patterns tinea capitis rural children. Materials Methods: This a cr...

Journal: :Cureus 2023

Tinea versicolor (TV) is a superficial fungal disease caused by Malassezia furfur, most commonly affecting adolescents and adults. TV uncommon among newborns, particularly those aged under one year. Poor hygiene perspiration, immunosuppression, the use of oils greasy lotions, hyperhidrosis, corticosteroids may all contribute to appearance condition. It clinically distinguished hypopigmentation ...

Journal: :International Journal of Energy Research 2023

The flowing electrolyte in a zinc-air fuel cell (ZAFC) can reduce the problem of incomplete reaction caused by concentration gradient electrolyte. In this study, we propose self-developed ZAFC with system and optimize control parameters. anode used Zn particles through which penetrates combined negative pressure pump to allow potassium hydroxide (KOH) have an effective chemical during discharge...

Journal: :Catalysts 2021

In this work, the beads and powder potassium hydroxide (KOH) carbonate (K2CO3) supported on alumina oxide (Al2O3) were successfully prepared via incipient wetness impregnation technique. Herein, perforated hydrophilic materials (PHM) made from low-density polyethylene (LDPE) was used as catalyst reactor bed. The catalysts investigated using TGA, XRD, BET, SEM-EDX, TPD, FTIR while spent analyzed...

Journal: :Catalysts 2023

The present work reports the synthesis of biomass derived activated carbon and its electrochemical behaviour in different electrolytes. Ricinus communis shell (RCS) was used as a raw material this study for (AC) following high-temperature activation procedure using potassium hydroxide activating agent. physical structural characterization prepared shell-derived (RCS-AC) carried by Brunauer-Emme...

Journal: :Archives of pediatrics & adolescent medicine 2002
Susan M Sweeney Karen Wiss Susan Bayliss Mallory

BACKGROUND Tinea pedis and tinea manuum in children are more common than previously recognized. Clinical presentations of dermatophyte infections may vary in children and may be difficult to diagnose. OBJECTIVE To show the necessity of potassium hydroxide preparations and/or fungal cultures in assessing suspicious cases of cellulitis in children who may have dermatophyte infections. PATIENT...

2005
M P Larsson

A method for improving adhesion between polymer films on Si substrates is described involving mechanical interlocking. Isotropic reactive ion etching (RIE) is applied to form pits in the Si substrate which fill upon application of a polymer via spinning. After curing, interpenetrating polymer lobes form a robust bond with the Si substrate. Adhesion improvements over films on smooth substrates a...

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