Browsing Faculty of Natural and Agricultural Sciences by Title
Now showing items 648-667 of 4822
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A class of goodness-of-fit tests based on a new characterization of the exponential distribution
(Taylor & Francis, 2008)A new characterisation of the exponential distribution in the class of new better than used in expectation (NBUE) life distributions is presented. Utilising this characterisation, a new class of goodness-of-fit tests for ... -
A class of goodness-of-fit tests for circular distributions based on trigonometric moments
(IDESCAT, 2019)We propose a class of goodness–of–fit test procedures for arbitrary parametric families of circular distributions with unknown parameters. The tests make use of the specific form of the characteristic function of the ... -
Class ranking of secondary schools in the North West province of South Africa
(ORSSA, 2016)The education system in South Africa finds itself in a dismal position. Existing research reports and general news bulletins suggest that schools in South Africa suffer from a general lack of efficiency measures and therefore ... -
Classes of sequentially limited operators
(Cambridge Univ Press, 2016)The purpose of this paper is to present a brief discussion of both the normed space of operator p-summable sequences in a Banach space and the normed space of sequentially p-limited operators. The focus is on proving that ... -
Classical and fractional analysis of the effects of silicosis in a mining community
(Elsevier, 2020)A mathematical model for the transmission dynamics of silicosis in a mining environment is designed and its qualitative analysis is given. The model takes into account the severity of silica dust exposure in a mining ... -
Classical model of Prandtl's boundary layer theory for radial viscous flow: application of (G'/G)- expansion method
(Eudoxus Press, 2017)In this paper, the exact closed-form solutions of the Prandtl's boundary layer equation for radial ow models with uniform or vanishing mainstream velocity are derived by using the (G'/G)-expansion method. Many new exact ... -
Classification and description of the vegetation in the Spitskop area in the proposed Highveld National Park, North West Province, South Africa
(AOSIS, 2012)The objective of the proposed Highveld National Park (HNP) is to conserve a considerable area of the poorly conserved Rocky Highveld Grassland and Dry Sandy Highveld Grassveld of the western Grassland Biome in South Africa. ... -
Classification and taxonomy of vegetable macergens
(Frontiers Media, 2015)Macergens are bacteria capable of releasing pectic enzymes (pectolytic bacteria). These enzymatic actions result in the separation of plant tissues leading to total plant destruction. This can be attributed to soft rot ... -
Classification of the Eastern Scarp Forests
(Springer, 2018)This chapter brings the first comprehensive classification of the Eastern Scarp Forest. These are very fragmented and relictual forests, structurally complex, rich in tropical elements as well as species of conservation ... -
Classifying aerosol type using in situ surface spectral aerosol optical properties
(EGU, 2017)Knowledge of aerosol size and composition is important for determining radiative forcing effects of aerosols, identifying aerosol sources and improving aerosol satellite retrieval algorithms. The ability to extrapolate ... -
Classifying bent radio galaxies from a mixture of point-like/extended images with machine learning
(IEEE, 2016)The hypothesis that bent radio sources are supposed to be found in rich, massive galaxy clusters and the avalibility of huge amount of data from radio surveys have fueled our motivation to use Machine Learning (ML) to ... -
Classifying bilinear differential equations by linear superposition principle
(World Scientific Publishing, 2016)In this paper, we investigate the linear superposition principle of exponential traveling waves to construct a sub-class of N-wave solutions of Hirota bilinear equations. A necessary and sufficient condition for Hirota ... -
Clifford-Fischer theory applied to a group of the form 2_1+6:((31+2:8):2)
(Iranian Mathematical Society (IMS), 2017)In our paper [A. B. M. Basheer and J. Moori, On a group of the form 210:(U5(2):2)] we calculated the inertia factors, Fischer matrices and the ordinary character table of the split extension 210:(U5(2):2) by ... -
Climate and air quality trade-offs in altering ship fuel sulfur content
(EGU, 2013)Aerosol particles from shipping emissions both cool the climate and cause adverse health effects. The cooling effect is, however, declining because of shipping emission controls aiming to improve air quality. We used an ... -
Climate and food resources shape species richness and trophic interactions of cavity‐nesting Hymenoptera
(Wiley, 2020)Aim: Temperature, food resources and top-down regulation by antagonists are considered as major drivers of insect diversity, but their relative importance is poorly understood. Here, we used cavity-nesting communities of ... -
Climate change adaptation and disaster risk reduction integration: strategies, policies, and plans in three Australian local governments
(Elsevier, 2017)Climate Change Adaptation (CCA) and Disaster Risk Reduction (DRR) integration is a pressing concern for Australia. Normative instruments such as Strategies, Policies, and Plans are among the principal ways that Local ... -
Climate change induced occupational stress and reported morbidity among cocoa farmers in South-Western Nigeria
(Institute of Agricultural Medicine, 2015)Introduction and objective: Climate change is one of the major development hurdles in many developing countries. The health outcome of farm households are related to climate change, which is related to several external and ... -
Climate change jeopardizes the persistence of freshwater zooplankton by reducing both habitat suitability and demographic resilience
(BioMed Central, 2018)Background: Higher temperatures and increased environmental variability under climate change could jeopardize the persistence of species. Organisms that rely on short windows of rainfall to complete their life-cycles, ... -
Climate change vulnerability index for South African aquifers
(South African Water Research Commission, 2012)South Africa is viewed as a water-stressed country with an average annual rainfall of 500 mm and any climatic change could have adverse impacts on water resources of the country. The potential impacts of climate change on ... -
Clinical validation of cutoff target ranges in newborn screening of metabolic disorders by tandem mass spectrometry: a worldwide collaborative project
(Springer Nature, 2011)Purpose: To achieve clinical validation of cutoff values for newborn screening by tandem mass spectrometry through a worldwide collaborative effort. Methods: Cumulative percentiles of amino acids and acylcarnitines in ...