نتایج جستجو برای: Bio-concentration

تعداد نتایج: 438169  

Journal: :iranian journal of toxicology 0
محمد ساکی زاده mohamad sakizadeh department of environmental sciences, shahid rajaee teacher training university, tehran, iran. روح الله میرزایی rouhollah mirzaei department of environmental sciences, university of kashan, kashan, iran. هادی قربانی hadi ghorbani department of water and soil, university of shahrood, shahrood, iran.

background: heavy metals have detrimental effects on the health of human being. the values of manganese (mn) and lead (pb) in some plant species and soil samples in an arid area of iran were evaluated in this study. methods: the values of pb and mn in 94 plant samples from 8 plant species and the related soil samples in 2010 were considered in shahroud and damghan, central iran. moreover, the s...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده دندانپزشکی 1394

چکیده سابقه و هدف polyetheretherketone یک پلیمر نیمه کریستالینی با عملکرد عالی است که در ساخت پروتزهای دندانی تحت عنوان bio hpp به کار گرفته شده است. نسل قبلی آن نیز، bio xs از گروه پلی اترکتون ها بوده ولی فاقد فیلرهای سرامیکی بوده است. در راستای ارزیابی ادعای سازندگان درباره ی خصوصیات مکانیکی این رزین ها؛ تحقیق حاضر با هدف مقایسه ی استحکام خمشی و کششی رزین های ترموپلاستیک bio hpp و bio xs د...

Journal: :فصلنامه علمی پژوهشی گیاهان دارویی 0
a rahimi shokooh department of horticulture, islamic azad university, science and research branch mr dehghani-meshkani cultivation & development department of medicinal plants research center, institute of medicinal plants, acecr a mehrafarin cultivation & development department of medicinal plants research center, institute of medicinal plants, acecr f khalighi-sigaroodi pharmacognosy & pharmaceutics department of medicinal plants research center, institute of medicinal plants, acecr h naghdi badi medicinal plants research center, institute of medicinal plants, iranian academic center for education, culture and research (acecr), p.o.box: 33651/66571, karaj, iran tel: +98-26-34764010-9, fax: +98-26-34764021

background: basil (ocimum basilicum l.), a member of the lamiaceae family, has traditionally been used as a medicinal plant in the treatment of headaches, coughs, diarrhea, constipation, warts, worms, and kidney malfunctions. objective: to investigate the foliar application effects of bio-stimulators and bio-fertilizers on morphological and phytochemical traits of basil (ocimum basilicum l.). m...

Journal: :international journal of environmental research 2010
g. resmi s.g. thampi s. chandrakaran

in this study, a bacterial species which could remove lead from wastewater was isolated from lead contaminated soil prepared in the laboratory. based on the biochemical and morphological characterization the bacteria were identified as brevundimonas vesicularis. the biosorption potentiel of powdered dry biomass of b. vesicularis was investigated by batch adsorption experiments. it was found tha...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده علوم 1391

abstract in the present research solution of chalcopyrite in sulfuric acid in hydrometallurgy method using electrochemistry with cyclic voltammetry technique has been investigated. the value of maximum reduction peak current of copper ions represents the measure of solubility. in this research different parameters temperature, potential, potential exert time, chalcopyrite concentration, sulfur...

The programs of managing waste materials in developing countries are often unsatisfactory and the unreasonable disposal of waste is a major issue in the worldwide. The main aim of the current study is to: Assess the applicability of Rumex crispus L. in removing heavy metals from the contaminated wastewater effluent form Pharmaceutical laboratories by bio-adsorption method. The dried R. crispus ...

F Khalighi-sigaroodi, H Naghdi Badi, MR Dehghani-Meshkani, A Mehrafarin , A Rahimi Shokooh ,

Background: Basil (Ocimum basilicum L.), a member of the Lamiaceae family, has traditionally been used as a medicinal plant in the treatment of headaches, coughs, diarrhea, constipation, warts, worms, and kidney malfunctions. Objective: To investigate the foliar application effects of bio-stimulators and bio-fertilizers on morphological and phytochemical traits of basil (Ocimum basilicum L.). ...

ژورنال: طلوع بهداشت یزد 2017

Introduction: Using bio-indicators, like birds' feathers can represent bio-transference of pollutants in the environment components better. This study was conducted to study and interpolate heavy metal pollution in laughing dove’s feather as a bio-indicator. Method: The heavy metals of Lead and Cadmium were studied in both western and eastern zones of Yazd by feather of laughing dove (Sp...

Journal: :Applied Ecology and Environmental Research 2018

2009
liis sipelgas viktoria ossipova Urmas raudsepp antti lindfors

A semi empirical bio-optical model was developed for the Pakri Bay. Model input parameters i.e. particle-specific spectral absorption and scattering coefficients and slope factor of coloured dissolved organic matter were calculated from the field data. The modelled reflectance spectra correspond to typical reflectance spectra with low chlorophyll-a concentration. The model is intended for the c...

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