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71.
Banavi Parvaneh Sadeghi Ehsan Garavand Farhad Heydari Mahshid Rouhi Milad 《Environmental science and pollution research international》2020,27(31):38591-38601
Environmental Science and Pollution Research - The copper pots with an inner coating layer of tin have been remarkably used in many countries for a long time. In this study, leaching of some metals... 相似文献
72.
Ain Quratul Ullah Raza Kamran Muhammad Asif Zulfiqar Farhad 《Environmental science and pollution research international》2021,28(6):6611-6618
Environmental Science and Pollution Research - Air pollution has become a major global problem. Thus, the goal of this study was to find out the economic impacts (treatment cost) of air pollution... 相似文献
73.
Introduction
Roadway safety is a major concern for the general public and public agencies, as roadway crashes claim many lives and cause substantial economic loss each year. In Iran, a large number of vehicles are involved in road accidents each year, which cause many deaths and extensive property damage; such accidents are among the major causes of death and disability in the country. Method: To reduce roadway accidents, the factors that affect the occurrence and severity of accidents should be scrutinized to prevent or reduce their effect. The method that many researchers have adopted to determine the effective parameters surrounding road accidents in recent years is through statistical modeling of accidents. In this article, the role of different kinds of vehicles in traffic flow are investigated separately in terms of the likelihood of crashes on urban highways, and the vehicles are divided into three groups: passenger cars, heavy vehicles, and light non-passenger car vehicles. Poisson and negative binomial (NB) regression models were applied to model the accidents in this research, which were categorized into two groups: no injury (property damage only) accidents and more severe (injury and fatal) accidents. Results: Ultimately, we conclude that light non-passenger car vehicles (i.e., taxis and motorcycles) play the largest role in the occurrence of crashes on urban highways for both types of accidents. 相似文献74.
In this study a novel variant of friction stir processing was developed for producing of polymer metal surface or bulk composites in order to enhance the mechanical, electrical and thermal properties. For this purpose, a novel tooling system was designed consists of a rotating pin, a stationary shoulder and a heating system located inside the shoulder. In present paper, for preliminary study high-density polyethylene and copper powder was selected as polymeric matrix and metallic additive, respectively. Surface quality, microstructure, ultimate tensile strength and the modulus of elasticity were determined for each prepared sample. From experimental tests, it was found that this approach is an efficient method for producing of polymer–metal composites. 相似文献
75.
Ehsan Aghdam Yingying Xiang Jianliang Sun Chii Shang Xin Yang Jingyun Fang 《环境科学学报(英文版)》2017,29(8):146-154
The formation of disinfection by-products(DBPs) from the degradation of N,N-diethyl-3-methyl benzoyl amide(DEET) and ibuprofen(IBP) by the ultraviolet irradiation(UV)/chlorine process and subsequent post-chlorination was investigated and compared with the UV/H_2O_2 process.The pseudo first-order rate constants of the degradation of DEET and IBP by the UV/chlorine process were 2 and 3.1 times higher than those by the UV/H_2O_2 process, respectively, under the tested conditions. This was due to the significant contributions of both reactive chlorine species U(RCS) and hydroxyl radicals(HO) in the UV/chlorine process. Trichloromethane, 1,1,1-trichloro-2-propanone and dichloroacetic acid were the major known DBPs formed after 90% of both DEET and IBP that were degraded by the UV/chlorine process. Their yields increased by over 50%after subsequent 1-day post-chlorination. The detected DBPs after the degradation of DEET and IBP comprised 13.5% and 19.8% of total organic chlorine(TOCl), respectively, and the proportions increased to 19.8% and 33.9% after subsequent chlorination, respectively. In comparison to the UV/H_2O_2 process accompanied with post-chlorination, the formation of DBPs and TOCl in the UV/chlorine process together with post-chlorination was 5%–63% higher,Ulikely due to the generation of more DBP precursors from the attack of RCS, in addition to HO. 相似文献
76.
Naz Saima Hussain Riaz Ullah Qudrat Chatha Ahmad Manan Mustafa Shaheen Ansar Khan Rifat Ullah 《Environmental science and pollution research international》2021,28(6):6533-6539
Environmental Science and Pollution Research - The current study was conducted to assess the hematological and histopathological changes in major carp (Catla catla) exposed to different... 相似文献
77.
Sohail Muhammad Tayyab Ullah Sana Majeed Muhammad Tariq Usman Ahmed Andlib Zubaria 《Environmental science and pollution research international》2021,28(23):29265-29275
Environmental Science and Pollution Research - This study explores the symmetric and asymmetric effects of the shadow economy on clean energy and air pollution of South Asian countries over the... 相似文献
78.
Sohail Muhammad Tayyab Ullah Sana Majeed Muhammad Tariq Usman Ahmed 《Environmental science and pollution research international》2021,28(23):29046-29055
Environmental Science and Pollution Research - Modern advances in nonlinear modeling have exposed that nonlinear models yield more robust results compared with linear models. Research on the effect... 相似文献
79.
Zarin Riaz Azmat Muhammad Naqvi Salman Raza Saddique Qaisar Ullah Saif 《Environmental science and pollution research international》2021,28(16):19726-19741
Environmental Science and Pollution Research - Rapid population growth integrated with poor governance and urban planning is highly challenging resulting key for the selection of unsuitable... 相似文献
80.
Zhao Weijun Hafeez Muhammad Maqbool Adnan Ullah Sana Sohail Sidra 《Environmental science and pollution research international》2021,28(37):51199-51209
Environmental Science and Pollution Research - With rapid economic growth, BRICS is facing enormous burdens of carbon emission and severe issues of income inequality. However, behind this economic... 相似文献