Environmental Processes
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On Spatio-Temporal Modelling of Stream Network Initiation
Environmental Processes - Tập 5 - Trang 239-257 - 2018
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...
A Comparative Evaluation of Photovoltaic Electricity Production Assessment Software (PVGIS, PVWatts and RETScreen)
Environmental Processes - Tập 2 - Trang 175-189 - 2015
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...
Modelling and Forecasting of Rainfall Time Series Using SARIMA
Environmental Processes - Tập 4 - Trang 399-419 - 2017
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...
Measuring Households’ Willingness to Pay for Water Quality Restoration of a Natural Urban Lake in the Philippines
Environmental Processes - - 2016
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
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...
Remediation of washing machine wastewater by photo-enhanced persulfate/hematite process
Environmental Processes - Tập 7 - Trang 537-551 - 2020
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...
Free-Surface Flow Over River Bottom Sill: Experimental and Numerical Study
Environmental Processes - Tập 2 - Trang 133-139 - 2015
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...
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
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...
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
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 ...
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