نتایج جستجو برای: some such alkali treatments as naoh

تعداد نتایج: 6553391  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم 1377

chapter one is devoted to a moderate discussion on preliminaries, according to our requirements. chapter two which is based on our work in (24) is devoted introducting weighted semigroups (s, w), and studying some famous function spaces on them, especially the relations between go (s, w) and other function speces are invesigated. in fact this chapter is a complement to (32). one of the main fea...

Journal: :Turbo : Jurnal Program Studi Teknik Mesin 2022

Merbau wood is a type of tropical hardwood class I-II having resistance to humid weather and so that the widely used in many building constructions, such as bearing houses bridges. In addition, this can be raw material for furniture because it has high durability against fungi. The tensile test specimen (ASTM D4761) fatigue E466) were made by turning smoothing surface with sandpaper. Furthermor...

Journal: :محیط شناسی 0
سید نوید سید رضوی دانشگاه تربیت مدرس، دانشجوی کارشناسی ارشد مهندسی عمران، محیط زیست احمد خدادادی دانشگاه تربیت مدرس، دانشیار مهندسی عمران، محیط زیست حسین گنجی دوست دانشگاه تربیت مدرس ، استاد مهندسی عمران ،محیط زیست

soil pollution has become one of the main concerns which because of containing chemical and hazardous materials, alerts the whole environment, and finding solutions to overcome this problem would be very important. many ways have been discovered and examined for soil treatment and one of the most applicable methods is soil washing. in this research, the effect of saponin biosurfactant in crude-...

Journal: :Infection and immunity 1970
I Ciznár J W Shands

The effect of mild alkaline hydrolysis on the immunological reactivity of Salmonella typhimurium lipopolysaccharide (LPS) was studied. Hydrolysis of LPS at 37 C in 0.01 to 0.25 n NaOH caused a decrease in precipitation of LPS by antiserum. Red cells sensitized with alkali-treated LPS were less responsive to hemagglutination by antiserum than were cells sensitized with heated LPS. Hemagglutinati...

1999
S. R. Eckhoff L. Du P. Yang K. D. Rausch D. L. Wang B. H. Li M. E. Tumbleson

Cereal Chem. 76(1):96-99 A corn wet-milling process in which alkali was used was studied as an alternative to the conventional corn wet-milling procedure. In the alkali wet-milling process, corn was soaked in 2% NaOH at 85°C for 5 min and then debranned mechanically to obtain pericarp as a coproduct. Debranned corn was cracked in a roller mill, and the cracked corn was steeped with agitation fo...

Journal: :Iawa Journal 2023

Summary Wood identification for commercial applications is important and has a significant demand worldwide. Microscopic wood involves many processes such as softening, sectioning, data analysis. Softening of crucial method obtaining good sections microscopic analysis but softening high-density difficult. An alternate presented. Different concentrations alkali, NaOH, were tried, optimized diffe...

2014
Joseph Davidovits

This paper presents a study on use of alkali activated bottom ash (BA) and ground granulated blast furnace slag (GGBS) blend in paver blocks. A preliminary effort on alkali-activated bottom ash, blast furnace slag based geopolymer (BA-GGBS-GP) mortar with river sand was carried out to identify the suitable mix for paver block. Several mixes were proposed based on the combination of BA-GGBS. The...

2011
Amir Goshadrou Keikhosro Karimi Mohammad J. Taherzadeh

The present work deals with enzymatic hydrolysis of sweet sorghum bagasse to fermentable sugars. The bagasse was treated with phosphoric acid and sodium hydroxide prior to enzymatic hydrolysis by commercial cellulase and β-glucosidase. The phosphoric acid pretreatment was performed at 50°C for 30 min, while 12% NaOH was used for the alkali treatment at 0°C for 3 h. The phosphoric acid pretreatm...

2017
Atikur Rahman Chad A. Ulven Maren A. Johnson Cheyenne Durant Khwaja G. Hossain

Wheat bran, abundant but underutilized, was investigated for its potential as a reinforcement in biocomposites through different pretreatment methods. Pretreatment methods included were dilute sodium hydroxide (NaOH), dilute sulfuric acid (H2SO4), liquid hot water (LHW), calcium hydroxide (CaOH), organosolv such as aqueous ethanol (EtOH), and methyl isobutyl ketone (MIBK). Changes in chemical c...

2016
Lilong Zhang Keli Chen

Black liquor (BL) can be regarded as the energy and alkali resource of the pulping mill. In this work, the effects of the characteristics of black liquor derived from the alkali-oxygen pulping of rice straw were studied. Through analyses of the chemical and physical properties, especially the thermodynamics properties, which depend on suspended matter and alkalinity, it was shown that the remov...

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