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A. M. Sakura R. H. Attanayake and R. M. Chandima Ratnayake
Digitalization of the failure-probability modeling of crucial components in power-distribution systems is important for improving risk and reliability analysis for system-maintenance and asset-management practices. This paper aims to implement a Python p...
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Tahsin Koroglu and Elanur Ekici
In recent years, wind energy has become remarkably popular among renewable energy sources due to its low installation costs and easy maintenance. Having high energy potential is of great importance in the selection of regions where wind energy investment...
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Simpy Sanyal, Taeyong Kim, Junsin Yi, Ja-Bin Koo, Ju-Am Son and In-Hyuk Choi
The aging of porcelain insulators is responsible for the failure of power utilities. Porcelain insulators from different places in South Korea, possessing various aging times and years of installation, have been investigated to carry out lifetime statist...
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Ju Feng and Wen Zhong Shen
Reliable wind modelling is of crucial importance for wind farm development. The common practice of using sector-wise Weibull distributions has been found inappropriate for wind farm layout optimization. In this study, we propose a simple and easily imple...
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Ivana Pobocíková, Mária Michalková, Zuzana Sedliacková and Daniela Jurá?ová
In the paper, we statistically analysed data on the average hourly wind speed obtained from the meteorological station Poprad (located at the Poprad-Tatry airport, the Pre?ov region, Northern Slovakia) for the period 2005?2021. High altitude and rough mo...
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F.N Ogana,J.H. Dau
The distribution of crown diameter is important for assessing crown social class, monitoring forest health and wildlife management. However, the direct measurement of crown diameter is relative difficult, and as such, it is often predicted from diameter ...
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Anthony Omar Donoso-Alvarado, Carmen Cruz Flores-Anchundia, Alma Mendoza, Ernesto A. Moya-Elizondo, Diego Portalanza, Freddy Zambrano-Gavilanes and Felipe R. Garcés-Fiallos
Physic nut (Jatropha curcas L.) has emerged as a promising fruit crop in Ecuador, but the recent identification of rust poses a potential threat to its productive development. This study focused on elucidating the morphological aspects of the basidiomyce...
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AZ Dhunny, MR Lollchund, SDDV Rughooputh
A study was carried out to analyse the potential of wind energy in the generation of electricity for a smart city which is located in the South-East Coastal Zone of Mauritius. A flat land area of 10 square km situated about 3.5 km from the smart city was...
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Haibo Wang, Wenqing Xu, Bing Cheng and Qi Zong
To study the particle size distribution and energy variation law of hard coal under a load, an impact compression test of hard coal specimens under different impact loading conditions was carried out using a F50 mm diameter Separate Hopkinson Press Bar (...
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Amani I. Altmimi, Safaa J. Al-Swaiedi and Oday Ibraheem Abdullah
Wind power is one of the most important sources of renewable energy. In this research paper, we developed an approach to select the optimum site among four different locations in Iraq (Talafar, Nasiriyah, Baghdad and RAWA) according to wind power density...
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Sadi I. Haruna, Han Zhu, Yasser E. Ibrahim, Jianwen Shao, Musa Adamu and Abdulwarith I. B. Farouk
The prolonged service life of civil engineering structures, such as buildings and highway pavement, means that they deteriorate with time, requiring frequent repair work. Polyurethane (PU) materials can effectively maintain engineering structures such as...
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Bin Hu, Zhen Zhang, Jing Li, Huiping Xiao and Kai Cui
The deterioration of rock mechanical properties under chemical-freezing-thawing-loading will seriously threaten the stability and safety of engineering rock mass, so the study of its constitutive model has very important theoretical and engineering appli...
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Alejandro Molina, Manuel R. Piña-Monarrez and Jesús M. Barraza-Contreras
In this paper a Weibull methodology to determine the probabilistic percentiles for the S-N curve of the A572 Gr. 50 steel is formulated. The given Weibull/S-N formulation is based on the true stress and true strain values, which are both determined from ...
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F. Lubbe, T. Harms, J. Maritz
Gathering quality wind speed data can be time-consuming and expensive. The present study established whether interval-deficient wind speed data could be rendered useful for wind power assessments. The effect of interval deficiency on the quality of the w...
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Saud Alfayez, Mohamed A. E. M. Ali and Moncef L. Nehdi
This study explores highly eco-efficient preplaced aggregate concrete mixtures having superior tensile characteristics and impact resistance developed for pavement and infrastructure applications. A fully recycled granular skeleton consisting of recycled...
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Chinedu I. Ossai and Nagarajan Raghavan
Effective prognosis of lithium-ion batteries involves the inclusion of the influences of uncertainties that can be incorporated through random effect parameters in a nonlinear mixed effect degradation model framework. This study is geared towards the est...
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Ayele Nigussie Legesse, Akshay Kumar Saha, Ridiren Pillay Carpanen
Both the planning and operating of a wind farm demand an appropriate wind speed model of its location. The model also helps predict the dynamic behaviour of wind turbines and wind power potential in the location. This study characterises the wind speed s...
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AZ Dhunny, MR Lollchund, SDDV Rughooputh
A study was carried out to analyse the potential of wind energy in the generation of electricity for a smart city which is located in the South-East Coastal Zone of Mauritius. A flat land area of 10 square km situated about 3.5 km from the smart city was...
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Youyuan Wang, Senlian Gong and Stanislaw Grzybowski
The overall life of oil-immersed power transformers depends on the long-term life of the oil?paper insulation system throughout continuous operation. Studying the reliability assessment methods for oil?paper insulation can help determine the reliability ...
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Zengguo Sun,Chongzhao Han
Pág. 109 - 114
The log-cumulant estimator is proposed to estimate the parameters of Weibull distribution based on second-kind statistics. With the explicit closed form expressions, the log-cumulant estimator is computationally efficient. Parameterestimation results fro...
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