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Analytical study of 226Ra activity concentration in market consuming foodstuffs of ramsar, Iran
, Article Journal of Environmental Health Science and Engineering ; Volume 15, Issue 1 , 2017 ; 2052336X (ISSN) ; Deevband, M. R ; Kardan, M. R ; Fathabadi, N ; Salehi, A. A ; Naddafi, K ; Yunesian, M ; Nabizadeh Nodehi, R ; Karimi, M ; Hosseini, S. S ; Sharif University of Technology
Abstract
Background: Ramsar, a city of Iran located on the coast of the Caspian Sea, has been considered to be enormously important due to its high natural radioactivity levels. People living in High Level Natural Radiation Areas (HLNRAs) have been exposed by several sources, one of which could be foodstuff. However, many studies have been carried out to measure the environmental radioactivity in Ramsar, but no survey has been conducted in all stapled consumed foods yet. This study was dedicated to determine 226Ra activity concentration in the daily diets of Ramsar residents as a probable exposure. Methods: Approximately 70 different market samples were collected during the four seasons based on the...
Partial root zone drying irrigation improves water use efficiency but compromise the yield and quality of cotton crop
, Article Communications in Soil Science and Plant Analysis ; Volume 52, Issue 13 , 2021 , Pages 1558-1573 ; 00103624 (ISSN) ; Raza, M. A. S ; Rashid, M .A ; Toleikiene, M ; Ayaz, M ; Mustafa, F ; Ahmed, M. Z ; Hyder, S ; Rahman, M. H. U ; Ahmad, S ; Aslam, M. U ; Haider, I ; Sharif University of Technology
Bellwether Publishing, Ltd
2021
Abstract
Water shortage is the main limitation for agricultural production in many parts of the world. Drought or unavailability of water may seriously limit plant growth as well as yield. A pot experiment was carried out to evaluate the effects of various irrigation strategies, i.e., Full (FI), deficit (DI) and partial root-zone drying (PRD) on physiological, biochemical and yield-related attributes of cotton crop. Irrigation treatments started 60 days after planting and lasted for 60 days. For FI and DI, 100% and 50% of evapotranspiration (ET) was replaced by irrigating the entire pot surface every 4–5 days. For PRD, root system was split into two equal halves and during each irrigation event, only...
Detection of addition of barley to coffee using near infrared spectroscopy and chemometric techniques
, Article Talanta ; Volume 99 , 2012 , Pages 175-179 ; 00399140 (ISSN) ; Leardi, R ; Oliveri, P ; Chiara Casolino, M ; Jalali Heravi, M ; Lanteri, S ; Sharif University of Technology
Elsevier
2012
Abstract
The current study presents an application of near infrared spectroscopy for identification and quantification of the fraudulent addition of barley in roasted and ground coffee samples. Nine different types of coffee including pure Arabica, Robusta and mixtures of them at different roasting degrees were blended with four types of barley. The blending degrees were between 2 and 20 wt% of barley. D-optimal design was applied to select 100 and 30 experiments to be used as calibration and test set, respectively. Partial least squares regression (PLS) was employed to build the models aimed at predicting the amounts of barley in coffee samples. In order to obtain simplified models, taking into...