نتایج جستجو برای: th iv ion removal

تعداد نتایج: 556680  

2009
György Iván Várallyay Zoltán Benyó

An na al ly ys si is s o of f t th he e I In nf fa an nt t C Cr ry y w wi it th h O Ob bj je ec ct ti iv ve e M Me et th ho od ds s György Iván Várallyay

1995
Shigeru Tanaka

A lar ge p op u lat ion of n eu r on es in t h e p r im ar y v isu al cor t ex op t im ally r esp on d t o t h e or ien t at ion an d p h ase of a gr at in g st im u lu s in lu m in an ce. I d em on st r at e h er e t h at t h e t op ology of t h e st im u lu s sp ace sp an n ed b y t h ese p ar am et er s is eq u iv alen t t o t h at of t h e Klein bottle, which has a characteristic feature in...

Journal: :iranian journal of toxicology 0
gagik badalians gholikandi power and water university of technology (pwut), water research institute (wri), tehran, iran محمد مهدی بانشی mohammad mehdi baneshi department of environmental health engineering, school of public health, yasuj university of medical sciences, tehran, iran عماد دهقانی فرد emad dehghanifard water and wastewater research center, water research institute (wri)/environmental health engineering department, school of public health, tehran university of medical sciences, tehran, iran سعید صالحی saeed salehi department of environmental health engineering, school of public health, arak university of medical sciences, arak, iran احمدرضا یاری ahmad reza yari department of environmental health engineering, school of public health, qom university of medical sciences, qom, iran

background: there are great resources of natural zeolite in iran. zeolite, an inorganic ion-exchanger, may be used as a suitable technical-economical solution for water treatment in many regions of iran. in this study, the characterization of natural zeolite natrolite and the feasibility of removing hardness, cations, and anions were investigated. methods: first, zeolite composition and type we...

Ashour Mohammad Merganpour, Gholamabbas Nekuonam, Hasan Safari, Khosro Karimi, Omid Alipour Tomaj, Vahid Kheirabadi, Yousef Kor,

Background: Today, issues such as water shortage, difficulties and costs related to supplying safe water, and anomalous concentrations of heavy metals in groundwater and surface water resources, doubled the necessity of access to technical methods on removing these pollutants from water resources. Methods: In this lab study, cationic resin Purolite S-930 (with co-polymer styrene di-vinyl benzen...

2006
Björn Ståhl Martin Fredriksson

Where the ro le o f so f twarein tens ive sys tems has sh i f ted f rom the t rad i t iona l one o f fu l f i l l ing i so lated computat iona l t a sks , l a rger co l l aborat ive soc ie t ie s wi th interac t ion as pr imary resource, i s g radua l ly t ak ing i t s p lace. Thi s can be obser ved in anyth ing f rom log i s t i cs to rescue operat ions and resource management , numerous ser v...

Dehghanifard, Emad, Mohammadi Amini, Maryam, Nourisepehr, Mohammad,

Background and Objective: Antibiotics are considered due to health and environmental problems and therefore they counted as a major threat to human health. The aim of this study was to determine the absorption efficiency of magnetic-chitosan nanocomposite in the removal of antibiotic tetracycline from aqueous solutions. Materials and Method: In this study, the experiments were performed by spec...

Journal: :مهندسی منابع معدنی و هیدروکربنی 0
غلامحسین نورمحمدی . غلامرضا کریمی . فاطمه سلیمی .

heavy metals removal from polluted wastewater is one of the major concerns due to their harmful effectson human health and the environment. the aim of this study is to absorb cu2+ and co+2 ions from wastewater by means of a synthesized magnetite bentonite nono - adsorbent. initially, nano- adsorbent was produced by coprecipitation techniques. then, the resultant material was analyzed and evalua...

1994
Arturo Trujillo

This p a p e r des(:ribes an a lgo r i thm ff)r (;he coml m t a t i o n of F I I{ST and F( ) I~LOW sets for use wi th f(;atur(!-thcor('~(;ic g r a m m a r s , in which the value of the sets t:onsist;s of pairs of fea turel;heorctic cat;o, gorit;s. T h e Mgori(;hm tn'(;sezve, s as mu(:h informed;ion f rom th(; g ra tnnmrs a,s 1)ossibh',, us ing nega t ive res t r ic t ion to (h;fin(~ (',quivah;n...

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