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31.
Nur Turhan Celil Akat Müfit Akyüz Aytül Çakci 《International journal of occupational safety and ergonomics》2013,19(4):417-422
The objectives of this study were to investigate the rate of cumulative trauma disorders (CTDs) in the upper body and to describe the associations of such disorders with ergonomic parameters in a group of data entry operators. A total of 173 data entry operators volunteered to take part in the study. Questionnaires were used to investigate their medical history. Diagnoses of CTDs were made with clinical tests. A visual posture analysis of the workers and an ergonomic analysis of workstations and workload were used to reveal risk factors. Neck and shoulder pain, extensor tendonitis of the wrists and De Quervain’s disease were common in the study population. An assessment of risk factors showed that leaning wrists on the keyboard, hard keystrokes, extreme wrist joint and thumb positions and working in poor ergonomic design were correlated to pain and development of CTDs. 相似文献
32.
Zaini Nur’atiah Ean Lee Woen Ahmed Ali Najah Malek Marlinda Abdul 《Environmental science and pollution research international》2022,29(4):4958-4990
Environmental Science and Pollution Research - Rapid progress of industrial development, urbanization and traffic has caused air quality reduction that negatively affects human health and... 相似文献
33.
Characterization of a simple bacterial consortium for effective treatment of wastewaters with reactive dyes and Cr(VI) 总被引:1,自引:0,他引:1
A microbial consortia consisting of three bacteria isolated from tanning and textile wastewaters revealed high capacity to simultaneously bioaccumulate dye and Cr(VI). The identity of the bacteria were determined by 16S rRNA gene analysis to be closely related to Ochrobactrium sp., Salmonella enterica and Pseudomonas aeruginosa. Dependence of initial pH values and range of concentrations of the dye Reactive Black B (33.2-103.1 mg l(-1)) and Cr(VI) (19.9-127.6 mg l(-1)) were examined to find the effect of pH on the dye and Cr(VI) bioaccumulation. Optimal pH for growth of the consortia in media containing 35 mg l(-1) dye and 50 mg l(-1) Cr(VI) was determined to be around 8. The Cr(VI) bioaccumulation by the consortia was rapid in media containing molasses with or without reactive dye with a maximum Cr(VI) bioaccumulation yield ranging from 90% to 99% within a 2-4d period. A slightly lower yield for the dye bioaccumulation was measured with a maximum dye bioaccumulation of 80% at 59.3 mg l(-1) dye and 69.8 mg l(-1) Cr(VI). The highest specific Cr uptake value was obtained as 76.7 mg g(-1) at 117.1 mg l(-1) Cr(VI) and 50.8 mg l(-1) dye concentration. This ability to bioaccumulate dye and Cr(VI) was more efficient than the enriched sludge from which they were isolated. 相似文献
34.
Al-khadher Sadeq Abdullah Abdo Abdul Kadir Aeslina Al-Gheethi Adel Ali Saeed Azhari Nur Wahidah 《Environmental science and pollution research international》2021,28(46):65513-65524
Environmental Science and Pollution Research - The current work aimed to study the physical, chemical and biological properties of food wastes generated from small and medium industries by using... 相似文献
35.
Andhika Puspito Nugroho Niken Satuti Nur Handayani I Gede Angga Pramudita 《毒物与环境化学》2017,99(9-10):1368-1377
Disposal of waste into aquatic ecosystems may cause microalgae to be exposed to various metals, e.g. copper and cadmium. The effects caused by combinations of metals may be more serious. Evaluations of subcellular fate, bioaccumulation, and biological effects of metals on aquatic organisms are generally derived from experiments with individual metals. The present study aims to evaluate the effects of exposure of Chlorella pyrenoidosa to copper and cadmium in combination on subcellular accumulation, distribution, and growth. The algae were exposed for 72 h to copper at concentrations of 13 – 25 µmol L?1, cadmium at about 6 µmol L?1, and combinations thereof. The levels of copper and cadmium in subcellular organelles, heat-denaturated protein, metal-rich granules, and heat-stable protein were determined by atomic absorption spectrometry. Exposure of C. pyrenoidosa to copper and cadmium in combination inhibited growth more strongly than copper and cadmium individually. Highest accumulation was observed in metal-rich granules and heat-stable proteins. Administration of both metals in combination affected their subcellular distribution: copper was mainly distributed into the metal-rich granules (70%–80%) and heat-stable proteins (9%–24%), cadmium in the metal-rich granules (88%–98%). 相似文献
36.
Koksal Fuat Gencel Osman Sahin Yusa Okur Osman 《Journal of Material Cycles and Waste Management》2021,23(3):985-1001
Journal of Material Cycles and Waste Management - Coal combustion waste reaches huge amount that causes environmental problem. In modern world, wastes generated from an industry can be used by... 相似文献
37.
Tan Yan-Ling Yiew Thian-Hee Habibullah Muzafar Shah Chen Jen-Eem Mat Kamal Siti Nuur-Ila Saud Nur Adilah 《Environmental science and pollution research international》2023,30(2):2754-2770
Environmental Science and Pollution Research - Although increased attempts to preserve biodiversity ecosystems have been widely publicized, bibliometric research of biodiversity loss remains... 相似文献
38.
Haque Md. Morshedul Hossain Nur Jolly Yeasmin N. Tareq Shafi M. 《Environmental science and pollution research international》2021,28(37):51329-51341
Environmental Science and Pollution Research - Chicken is one of the major protein sources and more affordable for the population of Bangladesh. Its quality monitoring is of high priority for food... 相似文献
39.
Ghufran Redzwan Maridah Mohd Amin Nur Nabiha Zulkarnain Mohd Radzi Abu Mansor Mohamad Suffian Mohamad Annuar Zul Ilham 《Journal of Material Cycles and Waste Management》2017,19(2):676-681
Biodiesel is commonly produced from vegetable oils, mostly edible and more expensive than petroleum diesel. By considering the cost of the conversion processes, cheap feedstock such as triglycerides and fatty acids (FA) extracted from early stage of food waste liquefaction has become a better choice than vegetable oils, as it could provide high yield of biodiesel without any compromise to food supply and other resources. In this study, FA from early stage of food waste liquefaction was extracted and tested for use as feedstock for biodiesel synthesis. The raw material was not pretreated but extraction was done by dry and wet methods. It was found that wet method could minimized the lost of short and medium-chained FA as well as reducing the number of steps required, thus, yielding higher amount of FA as feedstock. The effects of mixing, methanol ratio, reaction time and catalyst content were investigated for the acid-catalyzed esterification. The maximum biodiesel conversion obtained was 97.4 %. 相似文献
40.