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排序方式: 共有138条查询结果,搜索用时 78 毫秒
111.
Meshram Sarita Gajbhiye Ilderomi Ali Reza Sepehri Mehdi Jahanbakhshi Farshid Kiani-Harchegani Mahboobeh Ghahramani Afshin Rodrigo-Comino Jesús 《Environmental science and pollution research international》2021,28(36):49529-49540
Environmental Science and Pollution Research - In recent years, the occurrence of floods is one of the most important challenges facing in Hamadan city. In the absence/inefficiency of urban... 相似文献
112.
Moameri Mehdi Abbasi Khalaki Masoomeh 《Environmental science and pollution research international》2019,26(24):24315-24322
Environmental Science and Pollution Research - The purpose of this study is to evaluate the capability of Secale montanum trusted for phytoremediation of contaminated soils with lead (Pb) and... 相似文献
113.
Hassan Karimi-Maleh Mahbobeh Moazampour Ali A. Ensafi Shadpour Mallakpour Mehdi Hatami 《Environmental science and pollution research international》2014,21(9):5879-5888
In this study, we report preparation of a high sensitive electrochemical sensor for determination of hydrazine in the presence of phenol in water and wastewater samples. In the first step, we describe synthesis and characterization of ZnO/CNTs nanocomposite with different methods such as transmission electron microscopy (TEM) and X-ray diffraction (XRD). In the second step, application of the synthesis nanocomposite describes the preparation of carbon paste electrode modified with n-(4-hydroxyphenyl)-3,5-dinitrobenzamide as a high sensitive and selective voltammetric sensor for determination of hydrazine and phenol in water and wastewater samples. The mediated oxidation of hydrazine at the modified electrode was investigated by cyclic voltammetry, chronoamperometry, and electrochemical impedance spectroscopy (EIS). Also, the values of catalytic rate constant (k) and diffusion coefficient (D) for hydrazine were calculated. Square wave voltammetry (SWV) of hydrazine at the modified electrode exhibited two linear dynamic ranges with a detection limit (3σ) of 8.0 nmol L?1. SWV was used for simultaneous determination of hydrazine and phenol at the modified electrode and quantitation of hydrazine and phenol in some real samples by the standard addition method. 相似文献
114.
Beheshti Mehdi Etesami Hassan Alikhani Hossein Ali 《Environmental science and pollution research international》2018,25(15):14752-14761
Environmental Science and Pollution Research - Previous studies suggest that biochar has potential to benefit soil when used as an amendment, but only few studies have investigated how the... 相似文献
115.
Mehdi Hosseini Seyed Mohammad Bagher Nabavi Yaghoob Parsa Rashid Alijani Ardashir 《Environmental monitoring and assessment》2014,186(9):5439-5446
The levels of mercury in tissues of Penaeus merguiensis from Musa estuary, northwest of the Persian Gulf, were investigated. This study assessed the relationship between mercury levels in hepatopancrea, gill, and muscle with sex, size, and season. The order of mercury concentrations in tissues of the shrimp P. merguiensis was as follows: hepatopancreas > gill > muscle. There was a positive correlation between mercury concentrations in shrimp species with sex and size of its food items. We expected to see higher mercury levels in tissues of female species because they are larger and can eat larger food items. Also, there was a positive correlation between mercury concentrations in shrimp species with its food source. Therefore, female species feed more on shrimp and plant and are contaminated with high levels of mercury. There was significant difference (p?<?0.05) in mercury levels between different seasons; higher mercury levels were found in July (summer season). 相似文献
116.
117.
ANN-based mapping of monthly reference crop evapotranspiration by using altitude, latitude and longitude data in Fars province, Iran 总被引:1,自引:0,他引:1
Saeedeh Shirin Manesh Hossein Ahani Mehdi Rezaeian-Zadeh 《Environment, Development and Sustainability》2014,16(1):103-122
The main goal of this study was to evaluate the different feed-forward back-propagation artificial neural networks’ (ANNs) potential to estimate and interpolate the reference crop evapotranspiration (ET0) in Fars province of Iran. ET0 was calculated using the FAO-56 Penman–Monteith method over 24 synoptic stations. Then, altitude, latitude, longitude and the month’s number as inputs and the monthly ET0 as output (target) were used to train the ANNs. In addition, the three-layered ANNs optimized with different training algorithms including gradient descent back-propagation (gd), gradient descent with adaptive learning rate back-propagation (gda), gradient descent with momentum and adaptive learning rate back-propagation (gdx) and scaled conjugate gradient back-propagation (scg). The results indicated that scg algorithm with architecture (4 2 1) had more satisfactory results with the RMSE and R correlation coefficient equal to 18.538 mm and 0.967 in validation phase, respectively. Based on the mentioned architecture of scg algorithm, and input data form different parts of Fars province and surrounding areas, monthly ET0 maps were produced and annual one achieved by summation of monthly maps. The maps particularly annual one showed that highest values of ET0 could be found in the southern and especially southeastern regions, while the lowest values of ET0 could be seen in the northern parts. Contribution of geographic and topographic variables improved the accuracy and spatial details of the resulting maps. It is interesting to note that the fundamental capability of this model is the usage of just a few parameters for ET0 mapping. Since ET0 is a key parameter in water demand planning, therefore, the derived maps could be useful and applicable for many purposes mainly irrigation scheduling in Fars province, Iran. 相似文献
118.
Mehdi Gholamalifard Jason Phillips Mahdi Jalili Ghazizade 《Journal of Environmental Planning and Management》2017,60(5):792-820
It can be difficult for assessors and decision-makers to compare different options for a project, and thus come to a reasoned and objective decision concerning the impacts and its sustainability at the local level. Therefore, using integrated assessment becomes crucially important for evaluating proposed different options. In this paper, we apply the Rapid Integrated Sustainability Assessment Method (RISAM) to evaluate the proposed unmitigated options for a municipal waste disposal site in Tehran, Iran. The results obtained showed that all of the alternative unmitigated options to the current method of open dumping were indicated as being consistent with very weak sustainability. The RISAM method demonstrated offers potential considerable benefits with respect to improved efficiency, reduced need for resources, and improved consistency and transparency in evaluation and reporting. 相似文献
119.