currently all the waste produced are collected and transferred to the only landfill of tehran,aradkooh (kahrizak), that is located in the south of tehran. this landfill has been in use for over 45 years that has received over 35 million tons of waste during its life. in the present investigation 40 soil samples were collected from aradkooh landfill to know about the origin of metals. the sample...

STUDY OBJECTIVES To evaluate the pulmonary manifestations and the course of acute respiratory insufficiency associated with lysinuric protein intolerance (LPI). DESIGN Retrospective review of clinical data and chest radiographs (total 225) obtained during the lifetime follow-up of 31 LPI patients. About half of the 25 patients without respiratory symptoms underwent high-resolution computed to...

Purpose The study aims to analyze the role of coronavirus testing capacity possibly reduce case fatality ratio (CFR) in a large cross-section countries. controlled health-care expenditures, logistics performance index (LPI), carbon damages, and corporate social responsibility (CSR) understand nature causation between CFR stated factors. Design/methodology/approach used cross-sectional regressio...

The spatial pattern of color patches plays a crucial role in affecting the visual quality peri-urban forests dominated by Cotinus coggygria var. cinerea Engl. autumn. impact mechanism has been studied to facilitate algorithm-based automatic estimation. patterns 120 photographs were calculated after quantization and substitution. scenic beauty forest was estimated 698 respondents. Multiple corre...

Non-point source pollution (NSP) and runoff intensities distribution are primarily affected by landscape structure composition. Multiple causalities hinder our ability to determine significant variables that influence NSP. Therefore, we developed an approach integrates the Soil Water Assessment Tool (SWAT), random forest regression model, redundancy analysis, correlation coefficient assess role...

With the development of Internet technology and popularization data network, people's life is becoming more convenient, services in society are comprehensive. Due to fierce competition various service industries continuous optimization products, people faced with choices when consuming, which also leads popularity cross city crowdsourcing logistics mode can obtain better benefits higher profits...

Assessing the concentration of potentially harmful heavy metals in the soil of urban parks is imperative in order to evaluate the potential risks to residents and tourists. To date, little research on soil pollution in China's urban parks has been conducted. To identify the concentrations and sources of heavy metals, and to assess the soil environmental quality, samples were collected from 30 u...

As one of the significant phenomena in earthquake geotechnical engineering, liquefaction can cause severe damages. A number of factors play a role in the occurrence of liquefaction such as magnitude of earthquake, void ratio, relative density, and fines content percentage. The impact of building construction overburdens on liquefaction is of paramount importance. The present study was aimed at ...