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1.
Amir Nourbakhsh Abdollah Hosseinzadeh Farshid Basiji 《Journal of Polymers and the Environment》2011,19(4):908-911
The study was carried out to investigate the effects of filler content and two different compatibilizing agents (Eastman G-3003
and G-3216) on the mechanical properties of polypropylene reinforced with corn stalk and wood flour. In the sample preparation,
three levels of filler loading (30, 40 and 50 wt%) and one level of compatibilizing agent content (2.5 wt%) were used. For
overall trend, with addition of both grades of the compatibilizing agents, tensile and flexural properties of the composites
significantly improved, as compared with the pure PP. Tensile and flexural properties reach a maximum at 40 wt% filler content
and gradually decrease with a further increase in wood particle content. The composites treated with G-3003 gave better results
in comparison with G-3216. This could be caused by the high melt viscosity of G-3003. In general, corn stalk flour filled
composites showed superior mechanical properties. 相似文献
2.
Sharafi Zeynab Ehrampoush Mohammad Hassan Salehi-Abargouei Amin Sakhvidi Mohammad Javad Zare Askarishahi Mohsen Mirzaei Masoud Mehrparvar Amir Houshang Fallahzadeh Hossein Dehghani Ali Dalvand Arash 《Environmental science and pollution research international》2021,28(32):43394-43401
Environmental Science and Pollution Research - This study aimed to investigate the effect of exposure to pesticides and the prevalence of type 2 diabetes (T2D). In a cross-sectional study with a... 相似文献
3.
Alibeigi-Beni Sajjad Habibi Zare Masoud Pourafshari Chenar Mahdi Sadeghi Morteza Shirazian Saeed 《Environmental science and pollution research international》2021,28(7):8235-8245
Environmental Science and Pollution Research - Treatment of textile wastewater using ultrafiltration membranes was carried out in this study. Since membrane fouling is a major operational problem... 相似文献
4.
Maxime Norval Mohsen Zare René Brunet Fabien Coutarel Yves Roquelaure 《International journal of occupational safety and ergonomics》2019,25(3):429-442
Our study shows that information on operational leeway is limited in the originator articles of the ergonomic risk assessment tools for prevention of musculoskeletal disorders (MSDs). The tools’ underlying theoretical models do not consider the indicators of operational leeway, and they cannot determine the sufficiency of the situational operational leeway in a work situation. Consequently, regulation of the activity, which ensures the performance goals and the individual's health, has been overlooked. The lack of literature on indicators of situational operational leeway is one of the reasons for this deficit. Defining the indicators for this concept would be an innovation in the approach of MSD risk prevention. Developing empirically the concept of situational operational leeway in risk assessment tools would help to progress the current approach of MSD prevention. This study therefore proposes indicators of situational operational leeway to increase the representativeness and reliability of the risk assessment tools for MSDs. 相似文献
5.
Hossein Reza Darabi Shabnam Mohandessi Yadollah Balavar Mojtaba Mirhosseini Moghaddam Kioumars Aghapoor Farshid Mohsenzadeh Abbas Ali Nourinia 《Environmental Chemistry Letters》2011,9(4):519-524
Pre-harvest sprouting refers to the precocious germination of the grain in the spike prior to harvest as a result of moist
weather conditions at harvest time. From the agricultural viewpoint, it is necessary to impose an exogenous dormancy to wheat
seeds in order to improve the resistance of seed to pre-harvest sprouting. In this regard, we found that clove bud essential
oil is a strong inhibitor for wheat seed germination. The extract obtained from clove bud by supercritical fluid extraction
using CO2 as solvent minimized the number of extracts to two compounds, eugenol and eugenyl acetate. Eugenol, as the main constituent
of the oil, was responsible for its strong inhibitory activity in wheat seeds. The aqueous solution of clove bud oil was submitted
to germination assay at various concentrations from 50 to 400 mg/L. Complete inhibition of seed germination was recorded when
the concentration was 400 mg/L. Roots and sprouts have similar sensitivity to inhibitory effect. In an empirical study, the
synergistic cooperation of eugenol and eugenyl acetate from clove bud oil in the inhibition of seed germination was found
to be a 1:1 ratio. The clove bud essential oil is widely available and will broaden the horizon of applications for natural
and safe inhibitors in the fields. 相似文献
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7.
Omid Farshad Reza Heidari Farshid Zare Akram Jamshidzadeh Melika Ebrahimi Mohammad Javad Zamiri 《毒物与环境化学》2013,95(8-10):785-793
AbstractLung injury in rats challenged with paraquat at 20?mg kg?1 body weight was histopathologically evident by inflammation, hemorrhage, and vascular congestion. Increased levels of reactive oxygen species and lipid peroxidation, decreased glutathione content, and lower tissue antioxidant capacity was found. The effects of N-acetylcysteine and cimetidine, a well-known potent inhibitor for organic cation transport, were examined. Lung injury was attenuated by N-acetylcysteine but not by cimetidine. The findings are consistent with the assumption that beneficial effects of N-acetylcysteine administration in paraquat-challenged animals might be linked to its ability for preserving the cellular redox environment and preventing oxidative stress, while cimetidine might even hasten paraquat-induced lung injury. On the other hand, the effects of cimetidine on paraquat-induced lung injury underline the importance of future studies on the role of transporters in this complication. 相似文献
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9.
Evaluation of a novel hollow fiber membrane technique for collection of 1,1-dimethylhydrazine in air
Elnaz Taheri Abdulrahman Bahrami Farshid Ghorbani Shahna Maryam Farhadian 《Environmental monitoring and assessment》2018,190(8):479
The purpose of this study was to develop a novel one-step method for the time-weighted average determination of 1,1-dimethylhydrazine (UDMH) in the air followed by spectrophotometric detection. For this reason, 0.1% hydrochloric acid as the absorbent was used in hollow fiber (HF) membrane for sampling of UDMH from an atmospheric standard chamber. Response surface methodology (RSM) with central composite design (CCD) was used to optimize the sampling parameters, such as flow rate and sampling time. Moreover, several analytical parameters including breakthrough (BT) volume, storage time, and carryover effect of the proposed HF were investigated. The results showed that optimal sampling rate was 9.90 mL/min. In order to validate the proposed method, it was compared with the National Institute for Occupational Safety and Health (NIOSH) 3515 method, which showed good compatibility between the two methods. Intra- and inter-day repeatability values of the HF method were in the range 0.082–0.1 and 0.091–0.12, respectively, and the limits of detection (LODs) and limits of quantitation (LOQs) were 0.002 and 0.006 ng/mL, respectively. The storage time of the proposed HF was 7 days at 2 °C. These results demonstrated that the one-step HF membrane offered a high sensitivity for sampling of UDMH in air. 相似文献