نتایج جستجو برای: physico chemical characteristics

تعداد نتایج: 1015515  

2014
Matthew S. Bird Jenny A. Day

Temporary wetlands dominate the wet season landscape of temperate, semi-arid and arid regions, yet, other than their direct loss to development and agriculture, little information exists on how remaining wetlands have been altered by anthropogenic conversion of surrounding landscapes. This study investigates relationships between the extent and type of habitat transformation around temporary we...

محبوب خمامی, علی , نورانی, سید هادی , کافی, محسن ,

This research was conducted in order to investigate the possibility of using palm wastes compost as substrate for cultivation of Dieffebnbachia amoena at five levels (ratio of 0, 25, 50, 75 and 100% v/v as substitute for peat) and peat: perlite (4:1) treatment as control, as a randomized complete blocks design with three replications. Chemical and biological properties of palm wastes compost, p...

Journal: :Egyptian Journal of Aquatic Biology and Fisheries 2010

2016
Bridget T. McInnes Ryan Murphy Gabrielle N. Jones Marley Hodson Tanin Izadi Ivan Jimenez Nastassja Lewinski

There is a critical need to automatically extract and synthesize knowledge and trends in nanotechnology research from an exponentially increasing body of literature. Engineered nanomaterials (ENMs), such as nanomedicines, are continuously being discovered and Natural Language Processing approaches can semi‐automate the cataloging of ENMs and their unique physico‐chemical properties; automatical...

Journal: :international journal of environmental research 2010
h. abdul aziz a. omran w. r. zakaria

heavily polluted wastewater from sanitary landfill presents the leachate characteristics that need special treatment and disposal. concentration of chemical oxygen demand (cod), ammonia nitrogen (nh3-n), heavy metal and other pollutant content are often larger than standard requirement after applying biological/physico-chemical treatment.thus, the combination of coagulationflocculation and chem...

Journal: :جنگل و فرآورده های چوب 0
پدرام غدیری پور کارشناس ارشد پژوهش، مؤسسۀ تحقیقات جنگل ها و مراتع کشور، تهران، ایران خسرو ثاقب طالبی دانشیار پژوهش، مؤسسۀ تحقیقات جنگل ها و مراتع کشور، تهران، ایران محمد حسن صالحه شوشتری کارشناس پژوهش، مرکز تحقیقات کشاورزی و منابع طبیعی خوزستان، اهواز، ایران امید اسماعیل زاده استادیار، دانشگاه تربیت مدرس، دانشکدۀ منابع طبیعی و علوم دریایی، نور، ایران

in order to investigate some silvicultural and soil physico-chemical characteristics of christ's thorn (ziziphus spina christi l. desf.) natural stands, ten natural stands of the tree species which have similar climate and aspects were selected and altitude from sea level (asl), the thickest sprout collar diameter (tscd) and total tree height (th) of the tree species were measured in 1000 ...

Journal: :The Journal of antibiotics 1975
C Coronelli R J White G C Lancini F Parenti

Lipiarmycin, a metabolite of Actinoplanes deccanensis nov. sp. (PARENTI et al.), has been isolated in pure form. It has a molecular formula C52 CONGRUENT TO 54H74 CONGRUENT TO 76Cl2O19, (M.W. = 1,073 CONGRUENT TO 1,099). From its chemical and physico-chemical characteristics, lipiarmycin can be considered a new antibiotic. Lipiarmycin is highly active against Gram-positive bacteria, includin...

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