[1] Methods for Estimating Wind Speed Frequency Distributions The Weibull function is discussed for representation of the wind speed frequency distribution. Methods are presented for estimating the two Weibull parameters (scale factor c and shape factor k) from simple wind statistics. Comparison is made with a recently proposed method based on the “square-root-normal” distribution with…
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In order to understand different concepts related to organisational sustainability and its development, this study aims to review the current literature on organisational sustainability. The investigator has reviewed more than one hundred and fifty peer-reviewed journal articles relating to organisational sustainability published between 1987 and 2020 to achieve these goals. The literature review results indicated…
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The ambient air quality survey with respect to SPM, SO2 and NOx was carried out at 12 monitoring stations. For the measurement of the Air Quality Index, pollutant concentrations were used. It is noted that the allowable values are violated by most of the expected pollutants. The high pollution load in the ambient air of…
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Due to urban development and increasing industrialization, air pollution has become a major problem in some Latin American and Caribbean countries in the last few years. In addition to manufacturing activities that are mostly concentrated in cities, the main sources of air pollution are automobile emissions and stationary fuel combustion. In selected industrial areas in…
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Nieria ‘s Northern Guinea Savanna soils are continually and intensivgely cultivated, resulting in deterioration of soil quality, depletion of carbon reserves, increased soil erosion and depletion of soil nutrients. Concerning the reduction of greenhouse gas emissions and sustainable crop production, the effects of land use change on soil carbon stocks (SOC) are of concern, as…
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The purpose of this study is to examine and evaluate the patterns and variability of rainfall in Shillong and its surrounding areas, located in the Meghalaya hills of north-east India, which is geographically a neighbouring region to the wettest sections of the Earth, i.e. Cherrapunji and Mawsynram. Due to its geo-ecological fragility, strategic location vis-à…
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Titania (Pt / TiO2, Os / TiO2) catalyst materials assisted by platinum and osmium were synthesised by solid solid (SSI), sol-gel (SGI) and incipient wetness impregnation (IWI) techniques. X-ray diffraction (XRD), SEM, Raman spectroscopy, surface area analysis (BET), and Fourier transform infrared spectroscopy were used to characterise the catalysts. X-ray diffraction and Raman scattering ex-situ…
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Empirical studies suggest that the diversity and abundance of macrophytes determine the structural heterogeneity of the microhabitat of the aquatic ecosystem. Excessive accumulation of free-floating macrophytes on the surface of the water will, however, reduce the biomass of submerged macrophytes, leading to a relatively simplified structure of the ecosystem. We hypothesised that heavy summer rainfall…
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The global community has been pushed by several recent large-scale climate events to take an interest in climate change and its effects on water supplies. Among them, we can cite the droughts that have affected the Maghreb countries , particularly since the 1970s in Algeria. This study takes advantage of some statistical methods to interpret…
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