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排序方式: 共有366条查询结果,搜索用时 31 毫秒
71.
Weimin Zhu Chishti Muhammad Zubair Rehman Abdul Ahmad Manzoor 《Environment, Development and Sustainability》2022,24(4):4786-4809
Environment, Development and Sustainability - The prior empirical research focuses on examining only the procyclical impact of innovation on carbon emissions (CO2e), in the majority of cases, for... 相似文献
72.
基于费米能级差,构建了以BiVO_4为光阳极,Cu_2O/CuO为光阴极的双光电极可见光响应光催化燃料电池体系,研究了该体系在不同氧化剂的辅助作用下光电催化降解苯酚的效率与动力学.结果表明,向该体系中投加H_2O_2可以显著促进苯酚的降解,且反应过程光电流稳定,铜溶出量低.详细探究了H_2O_2初始浓度、pH对降解的影响,结果表明在H_2O_2投加量为5 mmol·L~(-1),初始pH为3.5条件下利于苯酚降解,5 mg·L~(-1)的苯酚可在120 min内完全去除.顺磁共振和猝灭实验表明该体系的主要氧化物种为·OH、·O~-_2和光生空穴.该催化体系实现了苯酚在可见光下的高效催化降解. 相似文献
73.
SnO2薄膜光波导传感元件检测二甲苯蒸气 总被引:1,自引:1,他引:0
利用SnO2薄膜光波导传感元件,研究了检测二甲苯蒸气的新方法.采用溶胶-凝胶法制备了SnO2薄膜/锡掺杂玻璃光波导元件,将该元件固定在光波导气体检测系统,对挥发性有机物蒸气进行检测.实验结果表明,室温下该敏感元件对二甲苯蒸气有较高的选择性响应.对于体积分数为2.5×10-7的二甲苯蒸气,响应和恢复时间分别为5s和36s.该元件具有响应快、可逆性好、灵敏度高等特点. 相似文献
74.
Malik Nur Khaliesah Abdul Manaf Latifah Abd 《Journal of Material Cycles and Waste Management》2018,20(2):1063-1072
Journal of Material Cycles and Waste Management - Monitoring the riverine litter was essential for the aesthetical value and reducing the negative impacts toward the human health, environment and... 相似文献
75.
Bassam Kattaa Walid Al-Fares Abdul Rahman Al Charideh 《Journal of environmental management》2010,91(5):1103-1110
Vulnerability assessment to delineate areas that are more susceptible to contamination from anthropogenic sources has become an important element for sensible resource management and landuse planning. This contribution aims at estimating aquifer vulnerability by applying the RISKE model in Banyas Catchment Area (BCA), Tartous Prefecture, west Syria. An additional objective is to demonstrate the combined use of the RISKE model and a geographical information system (GIS) as an effective method for groundwater pollution risk assessment. The RISKE model uses five environmental parameters (Rock of aquifer media, Infiltration, Soil media, Karst, and Epikarst) to characterize the hydro-geological setting and evaluate aquifer vulnerability. The elevated eastern and low western part of the study area was dominated by high vulnerability classes, while the middle part was characterized by moderate vulnerability classes. Based on the vulnerability analysis, it was found that 2% and 39% of BCA is under low and high vulnerability to groundwater contamination, respectively, while more than 52% and 5% of the area of BCA can be designated as an area of moderate and very high vulnerability to groundwater contamination, respectively. The GIS technique has provided an efficient environment for analyses and high capabilities of handling a large amount of spatial data. 相似文献
76.
77.
Akhter Faheem Jamali Abdul Rauf Abbasi Mahmood Nabi Mallah Mukhtiar Ali Rao Ahsan Atta Wahocho Shafeeque Ahmed Anees-ur-Rehman Hafiz Chandio Zubair Ahmed 《Environmental science and pollution research international》2023,30(5):11226-11245
Environmental Science and Pollution Research - The hydrophobicity of silica and composite aerogels has enabled them to acquire applications in a variety of fields. With remarkable structural,... 相似文献
78.
Rehman Abdul Ma Hengyun Ahmad Munir Ozturk Ilhan Chishti Muhammad Zubair 《Environmental science and pollution research international》2021,28(24):30702-30713
Environmental Science and Pollution Research - Carbon dioxide emission and climatic variation have a detrimental influence on the atmosphere as well as on agriculture production. The key aim of the... 相似文献
79.
Kapil Dev Brahman Tasneem Gul Kazi Hassan Imran Afridi Tahir Rafique Jameel Ahmed Baig Sadaf Sadia Arain Naeem Ullah Abdul Haleem Panhwar Salma Arain 《Environmental monitoring and assessment》2014,186(12):8611-8628
In the current study, the chemistry of fresh and stored rainwater of Thar Desert, Pakistan, was estimated during two consecutive monsoon periods. The present research deals with the variation in physicochemical parameters, total arsenic (Ast), inorganic arsenic species (Asi, AsV, AsIII), and fluoride (F?) in stored rainwater (SRW) at different time intervals (1 week to 3 months). The pH of fresh rainwater (FRW) samples showed slightly acidic to neutral in nature (6.08–7.06) which were inconsistent with the reference pH value (5.6) of rainwater. The resulted data indicated that Ast and F? levels in SRW were enhanced with time duration. The levels of Ast and F? in SRW after different time intervals were found in the range of 194–683 μg/L and 10–35.4 mg/L, respectively. The values of Ast and F? were 20–70 and 7–24 times higher than those of WHO permissible limits, 10 μg/L and 1.5 mg/L, respectively. The AsIII was dominant species in SRW, which corresponds to >60 % of Asi. The characteristics of the SRW revealed an unacceptable quality to consume for drinking and agricultural purposes in the studied area. 相似文献
80.
The industrial sector is the biggest electricity consumer in Malaysia. Electric motors account for more than 45% of the electricity consumption in the industrial sector in the country. Therefore, it is very important to implement energy efficiency standards for electric motors to reduce energy consumption growth in this sector. This paper attempts to calculate the cost efficiency analysis and emission reduction by implementing energy efficiency standards for electric motor in Malaysia. The energy efficiency standards are proposed based on the efficiency of electric motors from survey data. The study examines the potential energy, economical and environmental impacts of the implementation of energy efficiency standards for electric motors in three scenarios i.e. 0.5%, 1.0% and 1.5% of standards efficiency improvement. Standards also enable consumers to reduce their electricity bill and contribute to a positive environmental impact. 相似文献