Environmental Processes

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On Spatio-Temporal Modelling of Stream Network Initiation
Environmental Processes - Tập 5 - Trang 239-257 - 2018
I. Papageorgaki, I. Nalbantis
A hydrographic network consists of perennial and ephemeral streams, the latter expanding or contracting seasonally according to the occurrence of precipitation. Critical Support Area (CSA) is known as the upslope contributing area threshold for channel initiation, which normally varies in both time and space. The aim of this study is to investigate and model CSA and its variation in time and space...... hiện toàn bộ
A Comparative Evaluation of Photovoltaic Electricity Production Assessment Software (PVGIS, PVWatts and RETScreen)
Environmental Processes - Tập 2 - Trang 175-189 - 2015
Constantinos S. Psomopoulos, George Ch. Ioannidis, Stavros D. Kaminaris, Kostas D. Mardikis, Nikolaos G. Katsikas
The production and installation of PV systems is now one of the world’s fastest growing industries. This paper presents the primary differences in the usage and results of three major free software packages, Photovoltaic Geographical Information System (PVGIS), PVWatts and RETScreen, used for quick estimations and calculations relevant to photovoltaic (PV) electricity production. This work spots t...... hiện toàn bộ
Modelling and Forecasting of Rainfall Time Series Using SARIMA
Environmental Processes - Tập 4 - Trang 399-419 - 2017
P. P. Dabral, Mharhoni Z. Murry
Seasonal Auto Regressive Integrative Moving Average models (SARIMA) were developed for monthly, weekly and daily monsoon rainfall time series. Using Box-Cox transformation and subsequently differencing, monthly, weekly and daily monsoon rainfall time series were made stationary. The best SARIMA models were selected based on the autocorrelation function (ACF) and partial autocorrelation function (P...... hiện toàn bộ
Measuring Households’ Willingness to Pay for Water Quality Restoration of a Natural Urban Lake in the Philippines
Environmental Processes - - 2016
Esther Anne Bueno, Rico C. Ancog, Emma Obalan, Amyel Dale Cero, Alvin Nowell P Simon, Maria Rozeni Malvecino-Macalintal, Manuel Bactong, Julius Lunar, Geo Rhene Buena, Lemuel Sugui
Use of an Effective Variance Chemical Mass Balance Model for Source Apportionment of Metal Elements in a Polluted River
Environmental Processes - Tập 9 - Trang 1-15 - 2022
Pei-Yuan Hsieh, Chi-Chang Ho, Gen-Shuh Wang, Yuan-Cheng Hsu, Di-Wen Wang, Yu-Man Shang, Chang-Fu Wu
This study aimed to determine the sources of water pollution in a major river in northern Taiwan using the characteristics of actual industrial wastewater and the effective variance chemical mass balance (EV-CMB) model. River water samples from 9 sampling sites and 14 profiles of potential sources were collected once on May 15, 2019, and 52 metal elements were analyzed. The metal index (MI) was us...... hiện toàn bộ
Remediation of washing machine wastewater by photo-enhanced persulfate/hematite process
Environmental Processes - Tập 7 - Trang 537-551 - 2020
Masoumeh Khatebasreh, Rahil Kiani, Elham Minaee Tabrizi, Gelavizh Barzegar, Zohreh Bahmani, Maryam Yousefi, Farshid Ghanbari
Hematite nanoparticles (Fe2O3, HNPs) were synthesized to be used in washing machine wastewater treatment as a complex matrix. In order to activate persulfate (PS), HNPs and Ultraviolet-C (UVC) radiation were used to generate sulfate radicals due to photocatalytic activity of HNPs and higher energy input of UVC. The effect of operational parameters such as pH, catalyst dose, PS concentration and re...... hiện toàn bộ
Free-Surface Flow Over River Bottom Sill: Experimental and Numerical Study
Environmental Processes - Tập 2 - Trang 133-139 - 2015
Evangelia D. Farsirotou, Spiridon I. Kotsopoulos
This paper reports on a laboratory study that was performed in an experimental model in the Technological Educational Institute of Thessaly. The current research work examines the water surface profile variation in abruptly altered open channel topography. The objective is to investigate the effects of river bottom sills on flow depth for river control protection against floods. A rectangular bott...... hiện toàn bộ
Surface Ozone and its Precursor Gases Concentrations during COVID-19 Lockdown and Pre-Lockdown Periods in Hyderabad City, India
Environmental Processes - Tập 8 - Trang 959-972 - 2021
Sarat Kumar Allu, Aparna Reddy, Shailaja Srinivasan, Rama Krishna Maddala, Gangagni Rao Anupoju
Drastic measures such as lockdown imposed in the countries worldwide to control the extent of COVID-19 have influenced environmental parameters substantially. The aim of the present study was to investigate the impact of lockdown on the air quality in Hyderabad city by comparing the pollutants concentration during lockdown and pre-lockdown periods. A comparative study was also made on the pollutan...... hiện toàn bộ
Willingness to Pay for the Authenticity of the Curonian Spit
Environmental Processes - - 2017
Renata Dagiliūtė, M. Žalandauskas, Gintarė Sujetovienė, Jūratė Žaltauskaitė
Evaluating the Trend and Extreme Values of Faecal Indicator Organisms in a Raw Water Source: A Potential Approach for Watershed Management and Optimizing Water Treatment Practice
Environmental Processes - Tập 1 - Trang 287-309 - 2014
Fasil Ejigu Eregno, Vegard Nilsen, Razak Seidu, Arve Heistad
This study demonstrates the use of microbial load time series, through trend and extreme event analysis, to evaluate the effectiveness of watershed management strategies and to understand the probabilistic behaviour of extreme events. Heterotrophic plate count (HPC), Clostridium perfringens, intestinal enterococci, Escherichia coli, and coliform bacteria, were monitored from 1999 to 2012 at Nedre ...... hiện toàn bộ
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