نتایج جستجو برای: 2 culture medium phlogopite quartz sand

تعداد نتایج: 2930023  

2015
Ajay Kumar Sabyasachi Rout Manish Kumar Mishra Rupali Karpe Pazhayath Mana Ravi Raj Mangal Tripathi

Batch experiments were conducted to study the sorption of uranium (U) onto soil in deionised water as a function of its dosage, temperature and humic acid (HA). Furthermore, soils were characterized for particle sizes in the form of sand (>63 µm), silt (>2-<63 µm) and clay (<2 µm). The textural analysis revealed that soils were admixture of mainly sand and silt along with a small abundance of c...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده علوم پایه 1388

introduction acetic acid bacteria are large group of obligate aerobic gram negative bacteria with the ability to oxidize ethanol to acetic acid (1). they are widely distributed in natural habitats and classified in family acetobacteraceae. members of this family are useful in industrial production of vinegar(2). acetic acid bacteria (aab) can use substrates as glucose, ethanol, lactate or glyc...

2009
R. G. Kraus

Introduction: Shock processes in heterogeneous materials is a challenging aspect of impact cratering studies. Understanding the equipartition of energy in shocked mixtures of widely varying impedence is necessary to predict a wide range of phenomena, including phase changes, post-shock temperatures, and chemical reactions. Here, we present the results from shock py-rometry experiments on a mixt...

Journal: :Bioresource technology 2015
Eduardo J Gudiña Ana I Rodrigues Eliana Alves M Rosário Domingues José A Teixeira Lígia R Rodrigues

In this work, biosurfactant production by a Pseudomonas aeruginosa strain was optimized using low-cost substrates. The highest biosurfactant production (3.2 g/l) was obtained using a culture medium containing corn steep liquor (10% (v/v)) and molasses (10% (w/v)). The biosurfactant reduced the surface tension of water up to 30 mN/m, and exhibited a high emulsifying activity (E24=60%), with a cr...

A high efficiency shoot organogenesis from callus cultures and plant establishment protocol has been developed for cotton (Gossypium hirsutum L. cv SVPR-2) through shoot tip. After 6 weeks of culture, green-compact-nodular organogenic callus induction was observed on the medium fortified with (MS) basal salts, B5 vitamins, 2.0 mgl-1 of benzylaminopurine (BAP), 1.0 mgl-1 kinetin (KN), 30 gl-1 gl...

زارعی , حسین , شکری, صدیقه , علیزاده, مهدی ,

The current experiment was carried out to study the effect of several media including sand, sand+cocopeat, sand+perlite, cocopeat+perlite and sand+cocopeat+perlite on rooting quality of stem cuttings in weeping bottlebrush plant (Callistemon viminalis). The study was done during the late August of 2010. Statistical design was completely randomized with three replications. After wounding the bot...

Journal: :بیماریهای گیاهی 0
وحیده السادات رفیعی نویسنده ضیاء الدین بنی هاشمی مسئول مکاتبه

the formation of chlamydospores of phytophthora parsiana, a newly described high temperature tolerant pathogen of woody plants, were investigated in culture media and in infected roots of susceptible host plants. different solid agar media and cleared v-8 juice broth were inoculated with different isolates of p. parsiana and incubated for four days at room temperature before they were transferr...

Journal: :Medicina oral, patologia oral y cirugia bucal 2011
Gulfem Ergun Ferhan Egilmez Isil Cekic-Nagas

OBJECTIVE The purpose of this study was to compare the effect of light curing distance on the cytotoxicity of five resin composites cured with three high-power light curing units. STUDY DESIGN Seven cylindrical discs of each material (Grandio®, Voco; Filtek™ Z250, 3M ESPE; Clearfil™ AP-X, Kuraray Co. Ltd.; Aelite™ LS, Bisco Inc. and Simile®, Pentron) were cured. For curing, soft-up mode of qu...

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 2001
A Clouter D Brown D Höhr P Borm K Donaldson

In 1997, the IARC (International Agency for Research on Cancer) reevaluated its quartz classification from a class 2 carcinogen, to that of a class 1, stating sufficient evidence for carcinogenicity in both humans and experimental animals. However, tumor development did not occur across all occupational settings. It is probable that this is due to the considerable differences in toxicity betwee...

Journal: :Water 2021

The use of stormwater for managed aquifer recharge (MAR) has become one the most important ways to deal with water shortages and corresponding environmental geological problems, especially in north China. Fe (III) clogging porous media is a common significant problem that influences effect infiltration rate. This paper focuses on migration characteristics mechanisms iron hydroxides sand columns...

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