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Hicham Yazid, Taoufiq Bouzid, El mountassir El mouchtari, Lahoucine Bahsis, Mamoune El Himri, Salah Rafqah and Mohammadine El haddad
Walnut shells were used to produce highly microporous activated carbon. The prepared activated walnut shells were found to be an efficient adsorbent for removing Cr(VI). The study used the response surface methodology to investigate four independent vari...
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Frank Klawonn and Georg Hoffmann
Clustering algorithms are usually iterative procedures. In particular, when the clustering algorithm aims to optimise an objective function like in k-means clustering or Gaussian mixture models, iterative heuristics are required due to the high non-linea...
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Xin Wang, Haiqing Tian, Ziqing Xiao, Kai Zhao, Dapeng Li and Di Wang
To improve the operational efficiency of a hammer mill and delve into a high-efficiency, energy-saving grinding mechanism, the crucial parameters influencing the grinding of corn straw were identified as the spindle speed, hammer?sieve gap, and sieve por...
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Enrique Bonet and María Teresa Yubero
In Spain, irrigated agriculture is the most water-intensive sector, consuming around of 80% of water resources. Moreover, irrigation water distribution systems are the infrastructure by which one-third of water resource losses take place. Monitoring and ...
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Ivan Kostic, Aleksandar Simonovic, Olivera Kostic, Du?an Ivkovic and Dragoljub Tanovic
This paper presents the second stage of a tandem fixed-wing unmanned aerial vehicle (UAV) aerodynamic development. In the initial stage, the UAV was optimized by analyzing its characteristics only in symmetrical flight conditions. Posted requirements wer...
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Thiago dos Santos Gonçalves, Harald Klammler and Luíz Rogério Bastos Leal
Aquifer properties, such as hydraulic transmissivity T and its spatial variability, are fundamental for sustainable groundwater exploitation in arid regions. Especially in karst aquifers, spatial variability can be considerable, and the application of ge...
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Enrico Cestino, Davide Pisu, Vito Sapienza, Lorenzo Chesta and Valentina Martilla
A new Range Equation for a hybrid-electric propeller-driven aircraft was formulated by an original derivation based on the comparison of Virtual Electrical Aircraft (VEA) and Virtual Thermal Aircraft (VTA) range equations. The new formulation makes it po...
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Manorama Kamireddy, Sanjib K. Behera and Suresh Kancherla
African oil palm (Elaeis guineensis Jacq.) is a bulk feeder of nutrients. In this study, we aimed at devising strategies for efficient nutrient management in the oil palm plantations of the Krishna River basin located in Andhra Pradesh, India by assessin...
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Cezary Tkaczuk and Anna Majchrowska-Safaryan
The aim of the study was to determine the effect of temperature on the colony growth and conidia germination of selected species of entomopathogenic fungi in the genus Cordyceps (C. farinosa, C. fumosorosea and C. coleopterorum) and one isolate of Paecil...
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Xianyang Yu, Jinhao Xie, Yanju Wu, Qiuhong Wu, Zizheng Zhang and Hai Wu
A dynamic numerical method is established to simulate the stability of the surrounding rocks of the retained roadway in FLAC3D, along with a double-yield constitutive model to simulate the re-compaction process of gangue and a strain-softening constituti...
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