Results 21 to 30 of about 34,946 (268)

Assessment of groundwater quality of Ballia district, Uttar Pradesh, India, with reference to arsenic contamination using multivariate statistical analysis

open access: yesApplied Water Science, 2018
A total of 22 water quality parameters were selected for the analysis of groundwater samples with reference to arsenic contamination. Samples were collected in the pre-monsoon and monsoon seasons of the year 2013.
Asha Lata Singh, Vipin Kumar Singh
doaj   +1 more source

Central types of convex fragments of the perfect Jonsson theory

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2019
In this paper, the central types of convex fragments of the perfect Jonsson theory are considered. The main goal of this paper is to redefine the A.D.
A.R. Yeshkeyev, M.T. Omarova
doaj   +1 more source

Assessment of the quality of the Owabi reservoir and its tributaries

open access: yesCogent Food & Agriculture, 2018
Physicochemical properties, nutrient concentrations, microbial properties and concentrations of heavy metals in water and sediments from the Owabi reservoir and its tributaries, namely Atafua, Sukobri and Owabi rivers as well as the outflow of the ...
Nathaniel Owusu Boadi   +5 more
doaj   +1 more source

Model-theoretic properties of J-non-multidimensional theories

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
The issues of utilizing the central type to analyze the theoretical and model properties of the idea of heredity were examined in this research, taking into account both theories and the Jonsson spectrum.
M.T. Kassymetova, G.E. Zhumabekova
doaj   +1 more source

Assessment of trace elements and its influence on physico-chemical and biological properties in coastal agroecosystem soil, Puducherry region

open access: yesGeology, Ecology, and Landscapes, 2018
The concentration of trace elements Ba, Sr, V, Cr, Ni, Pb, Cu, Zn, As, Mn, and Co were assed in the surface soil of agricultural lands, Puducherry region.
M. Sudhakaran   +3 more
doaj   +1 more source

Data Processing and Enrichment of LiDAR-Derived Traffic Data [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
With the escalating demand for efficient traffic management and the increasing complexity of traffic control, diverse sensor technologies have been implemented to measure traffic in real-time.
A. Peykova   +2 more
doaj   +1 more source

Model-theoretic properties of J-superstable Jonsson theories in classes defined by cosemanticness

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
This article deals with the problems of model-theoretic characterization of J-superstable Jonsson theories. The characteristic features of such theories are analyzed in terms of J-stability, J-P-superstability, and J-nonmultidimensionality.
A.R. Yeshkeyev   +2 more
doaj   +1 more source

ASSESSMENT OF HEAVY METALS IN SEDIMENTS AND ASSOCIATED ECOLOGICAL RISKS IN IKWU RIVER, UMUAHIA, NIGERIA

open access: yesEnvironmental Problems, 2023
Sediments can act as pollutant sink as well as source of secondary contamination in aquatic ecosystems. The pollution characteristics of eight heavy metals in the sediments of Ikwu River, Umuahia were investigated using eight assessment indices.
Emeka Donald Anyanwu   +2 more
doaj   +1 more source

Improving the Representation and Conversion of Mathematical Formulae by Considering their Textual Context

open access: yes, 2018
Mathematical formulae represent complex semantic information in a concise form. Especially in Science, Technology, Engineering, and Mathematics, mathematical formulae are crucial to communicate information, e.g., in scientific papers, and to perform ...
Aizawa A.   +16 more
core   +1 more source

Characteristics of hydrogen rich water at different stages of electrolysis [PDF]

open access: yesBIO Web of Conferences
The article presents data on the enrichment of molecular hydrogen by the electrolysis of water using different types of water at different time periods using different types of water of different types (bottled drinking, distilled and tap).
Petrov Dmitry, Panina Elena
doaj   +1 more source

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