نتایج جستجو برای: static adsorption

تعداد نتایج: 163032  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده مهندسی موادو متالورژی 1393

the aim of this paper is eliminating cr(vi) by natural hap. hap is a inexpensive material which is used from bovine critical bone ash in order to remove heavy metal ions like cr(vi). some experiments in different ph are performed (ph=2,3,7). maximum adsorption was appeared at ph=2, dosage=0.3 gr, c0=10 mg/l. cr(vi) removal depends on ph value and initial amount of cr(vi) result of experiments w...

Journal: :journal of the iranian chemical research 0
ardeshir shokrollahi department of chemistry, university yasouj, 75918-74831, yasouj, iran mehrourang ghaedi department of chemistry, university yasouj, 75918-74831, yasouj, iran mojdeh ranjbar department of chemistry, university yasouj, 75918-74831, yasouj, iran ameneh alizadeh department of chemistry, university yasouj, 75918-74831, yasouj, iran

the objective of this study was to assess the adsorption potential of activated carbon (ac) asan adsorbent for the removal of murexide (mu) from aqueous solutions. the influence of variablesparameters including ph, amount of adsorbent, sieve size of adsorbent, temperature and contact timeon mu removal was studied. following optimization of variables, the relation between concentrations ofdye re...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده فنی 1393

ناکاملی هندسی در ستون ها از مواردی می باشد که وجود آن در اعضای سازه ای را نمی توان نادیده گرفت، در هر عضو سازه ای ناکاملی هندسی هر چند بسیار کوچک وجود خواهد داشت از این رو بررسی تاثیرات این ناکاملی ها و همچنین پیدا کردن مقدار مجاز برای آنها در طراحی سازه های فولادی دارای اهمیت خاصی می باشد. هدف این پژوهش بررسی رفتار قاب های فولادی با ناکاملی در مختصات گرهی به میزان 3، 6 و 9 میلی متر بوده که برا...

Journal: :Angewandte Chemie 2021

Adsorption-based iodine (I2) capture has great potential for the treatment of radioactive nuclear waste. In this study, we apply a “multivariate” synthetic strategy to construct ionic covalent organic frameworks (iCOFs) with large surface area, high pore volume, and abundant binding sites I2 capture. The optimized material iCOF-AB-50 exhibits static uptake capacity 10.21 g g?1 at 75 °C dynamic ...

Journal: :Journal of water process engineering 2022

Adsorption is a well known effective technology for water treatment. Although limited capacities of adsorbents and regeneration issues are two common challenges. This study proposed tested innovative approaches improving adsorption/desorption biochar made from macadamia nutshell (MBC). These capacitive deionization (CDI) degaussing (full process detailed in methods), the respective enhancement ...

Journal: : 2023

Samples of the composite cellulose with polyaniline (Cel/PAn), in which PAn is doped hydrochloric acid synthesis process, were synthesized under mass ratio Cel : aniline (An) equal 2 1. The was carried out by oxidation ammonium peroxydisulfate (APS) aqueous 0.5 M solutions presence a suspension bleached cellulose. adsorption capacity produced samples Cel/PAn regarding Cr(VI) studied used electr...

Journal: :journal of research in rehabilitation sciences 0
محمدتقی امیری خراسانی منصوره مقربی منظری mohammadtaghi amiri-khorasani mansooreh mogharabi manzari

introduction: one of the main sections of warm up is stretching which the importance of them is static and dynamic stretching. the purpose of this study was to examine the effects of static and dynamic stretching within a pre-exercise warm-up on the static and dynamic in soccer players. materials and methods: eighteen physical education female students (height: 159.68 ± 5.94 cm; mass: 60.21 ± 5...

2005
G. Haugstad

Fourier analysis of oscillating forces at a laterally modulated tip provides new insight into static-to-kinetic friction transitions on ultrathin polyvinyl alcohol (PVA) films. In addition to contrast in sliding friction, layers of autophobically dewetted PVA films exhibit remarkable contrast in the transition from static to kinetic friction as derived from spatially resolved Fourier analysis. ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید