Results 31 to 40 of about 13,802 (208)

Indeks Kualitas Perairan dan Fitoplankton Periode Ramadan di Situ Gintung, Tangerang Selatan, Banten

Biotropic: The Journal of Tropical Biology, 2019
The behavior of the Indonesian Muslim community has changed in the month of Ramadan and will affect the anthropogenic waste that enters the lake ecosystem.
Yayan Mardiansyah Assuyuti, Alfan Farhan Rijaluddin, Firdaus Ramadhan   +2 more
doaj   +1 more source

A comprehensive procedure to develop water quality index: A case study to the Huong river in Thua Thien Hue province, Central Vietnam

PLoS ONE, 2022
This work proposed a novel procedure of Water Quality Index (WQI) development that could be used for practical applications on a local or regional scale, based on available monitoring data.
Hop Nguyen Van, Hung Nguyen Viet, Kien Truong Trung, Phong Nguyen Hai, Chau Nguyen Dang Giang   +4 more
doaj   +2 more sources

Multiresolution analysis of active region magnetic structure and its correlation with the Mt. Wilson classification and flaring activity [PDF]

, 2008
Two different multi-resolution analyses are used to decompose the structure of active region magnetic flux into concentrations of different size scales. Lines separating these opposite polarity regions of flux at each size scale are found.
C. A. Young, C. Whelan, C.J. Schrijver, D.A. Falconer, D.A. Falconer, D.A. Falconer, E. Bratsolis, E.S. Keeping, I. Moortel De, J. Ireland, J.K. Lawrence, J.K. Lawrence, J.L. Starck, J.V. Wall, K.D. Leka, K.D. Leka, K.D. Leka, L. Wasserman, M. Turmon, M.K. Georgoulis, P. T. Gallagher, P.A. Conlon, P.H. Scherrer, P.S. McIntosh, P.T. Gallagher, R. J. Hewett, R. T. J. McAteer, R.C. Gonzalez, R.J. Barlow, R.J. Hewett, R.T.J. McAteer, R.T.J. McAteer, T. Wit Dudok de, V. Domingo, V.I. Abramenko, V.I. Abramenko, Y. Cui   +36 more
core   +1 more source

Water Quality Assessment, Water Quality Index, WQI, Chahnimeh Reservoirs [PDF]

آب و توسعه پایدار
Assessing the quality of water resources and having accurate information about their quantity and quality is a prerequisite for water resources management.
Iman Homayoonnezhad, Paria Amirian
doaj   +1 more source

Robust principal component analysis in water quality index development [PDF]

, 2013
Some statistical procedures already available in literature are employed in developing the water quality index, WQI. The nature of complexity and interdependency that occur in physical and chemical processes of water could be easier explained if ...
Ibrahim, Noor Akma, Juahir, Hafizan, Mengersen, Kerrie, Mohd Ali, Zalina, Shitan, Mahendran   +4 more
core   +2 more sources

Assessment of groundwater quality in a highly urbanized coastal city using water quality index model and bayesian model averaging

Frontiers in Environmental Science, 2023
Prediction and assessment of water quality are important aspects of water resource management. To date, several water quality index (WQI) models have been developed and improved for effective water quality assessment and management.
Xin Wang, Xin Wang, Yong Tian, Chongxuan Liu   +3 more
doaj   +1 more source

Landau Collision Integral Solver with Adaptive Mesh Refinement on Emerging Architectures [PDF]

, 2017
The Landau collision integral is an accurate model for the small-angle dominated Coulomb collisions in fusion plasmas. We investigate a high order accurate, fully conservative, finite element discretization of the nonlinear multi-species Landau integral ...
Adams, M. F., Brown, J., Hirvijoki, E., Isaac, T., Knepley, M. G., Mills, R.   +5 more
core   +4 more sources

Assessment of many WQI models and development of new WQI model

Water Supply
ABSTRACT The water quality index (WQI) is widely used to assess water quality. In all WQI models, selected parameter data are transformed into many steps to a single number. Since the first model was developed in 1965, a lot of WQI models have been developed.
Muzher Mahdi Ibrahem Aldoury, Mohammed Taha Hammood   +1 more
openaire   +2 more sources

Water Quality Integrated System (WQIS) User Manual

, 2021
This manual was drawn up during the activities foreseen in the EU INTERREG Watercare project. After the design and implementation of the WQIS in the pilot site of Fano, the authors have drafted this manual in order to be used for field operation by all partners of the project.
Špada, Vedrana, Bilić, Josipa
openaire   +5 more sources

Groundwater quality assessment in different volcanic rocks using water quality index in the tropical area, Indonesia

Journal of Degraded and Mining Lands Management
Groundwater is the main water source that is most widely used in the world, one of which is in Indonesia. One of the uses of groundwater is for consumption needs. Therefore, the groundwater used should have good water quality. For this reason, this study
Heru Hendrayana, Indra Agus Riyanto, Novia Ismayuni, Azmin Nuha, Azwar Satrya Muhammad, Arif Fadillah   +5 more
doaj   +1 more source