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Lingjie Wu, Chenchi Jiang, Weiqiang Wang, Xiang Gao and Yufeng Xia
In contrast to the marine environment, coastal regions encompass substantial saline soils characterized by complex corrosive chemical compositions. This poses notable challenges to the durability of concrete structures erected in coastal dredger fill sil...
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Anis Aklima Kamarudin,Zulaiha Ali Othman,Hafiz Mohd Sarim
Pág. 63 - 66
The water flow-like algorithm (WFA) is a relatively new metaheuristic algorithm, which has shown good solution for the Travelling Salesman Problem (TSP) and is comparable to state of the art results. There are various factor influence the performance of ...
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Ai-Hua Zhou, Li-Peng Zhu, Bin Hu, Song Deng, Yan Song, Hongbin Qiu and Sen Pan
The traveling-salesman problem can be regarded as an NP-hard problem. To better solve the best solution, many heuristic algorithms, such as simulated annealing, ant-colony optimization, tabu search, and genetic algorithm, were used. However, these algori...
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Yi Lu, Deeparekha Narayanan, Ryan Brooks and Homero Castaneda
Carbon steel rebar (ASTM A615) has been widely used in reinforced concrete (RC), but its susceptibility to chloride ions remains a critical issue. Low alloy chromium steel has been used to increase corrosion resistance and extend service life, such as in...
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HI Mohammed, B Gutti, BK Highina
Pág. 104 - 118
This study aimed at the co-current removal of chromium and lead ions from synthetic waste water using dum palm kernel activated carbon. The adsorption experiment was conducted by varying time, pH and concentrations of the simulated solution. The data obt...
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Warawut Chairawiwut, Dena W. McMartin and Shahid Azam
Four pilot-scale non-planted constructed wetlands (CWs) were employed to study the fate and transport of the two dominant chloride salts contained in brine resulting from solution mining activities in the potash industry. The simulated brine contained a ...
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Warawut Chairawiwut, Dena W. McMartin, Shahid Azam
Pág. 1 - 9
Four pilot-scale non-planted constructed wetlands (CWs) were employed to study the fate and transport of the two dominant chloride salts contained in brine resulting from solution mining activities in the potash industry. The simulated brine contained a ...
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Neamah S. Radam, Sufyan T. Faraj Al-Janabi and Khalid Sh. Jasim
The multi-controller placement problem (MCPP) represents one of the most challenging issues in software-defined networks (SDNs). High-efficiency and scalable optimized solutions can be achieved for a given position in such networks, thereby enhancing var...
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Yongbo Wang, Nanshan Zheng and Zhengfu Bian
Since pairwise registration is a necessary step for the seamless fusion of point clouds from neighboring stations, a closed-form solution to planar feature-based registration of LiDAR (Light Detection and Ranging) point clouds is proposed in this paper. ...
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Chien-Lin Huang, Nien-Sheng Hsu, Chih-Chiang Wei and Wei-Jiun Luo
This study adopts rainwater harvesting systems (RWHS) into a stormwater runoff management model (SWMM) for the spatial design of capacities and quantities of rain barrel for urban flood mitigation. A simulation-optimization model is proposed for effectiv...
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Weidong Yin, Leizheng Shu, Yang Yu and Yu Shi
In this article, we present a free-vertex tetrahedral finite-element representation of irregularly shaped small bodies, which provides an alternative solution for estimating asteroid density distribution. We derived the transformations between gravitatio...
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Mieszko Wieckiewicz, Eric Wolf, Katarzyna Walczak, Heike Meissner and Klaus Boening
Chitosan is a cationic natural polymer that is widely used as a topical dressing in wound management. Temporary coatings of removable denture bases with chitosan might be useful as supportive treatment in oral medicine. The aim of this study was to analy...
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Italon Rilson Vicente Gama,André Luiz Andrade Simões,Harry Edmar Schulz,Rodrigo de Melo Porto
Pág. 145 - 159
Ondas de cheia em canais e ondas produzidas por manobras em comportas são alguns fenômenos simulados com as equações de Saint-Venant em aplicações de engenharia. Um novo código foi desenvolvido para a solução dessas equações aplicadas a um canal trapezoi...
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Martin Menut and Florence Lequien
The present study outlines the first steps in modelling lead corrosion upon contact with an anaerobic HCI solution. These developments, completed with COMSOL Multiphysics, were carried out in dimension 1 of space. This process took place across several s...
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Andrea Ballo, Salvatore Pennisi, Giuseppe Scotti and Chiara Venezia
A current-controlled CMOS ring oscillator topology, which exploits the bulk voltages of the inverter stages as control terminals to tune the oscillation frequency, is proposed and analyzed. The solution can be adopted in sub-1 V applications, as it explo...
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Ana-Maria Chiro?ca and Liliana Rusu
An alternative to experiments is the use of numerical model tests, where the performances of ships can be evaluated entirely by computer simulations. In this paper, the free surface viscous flow around a bare hull model is simulated with three Computatio...
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Hamid Reza Jafari, Ali Davoodi and Saman Hosseinpour
In this work, the corrosion behavior and surface reactivity of as-cast and heat-treated nickel aluminum bronze casting alloy (UNS C95800) in 3.5 wt% NaCl solution is investigated under stagnant and flow conditions. Increasing flow rate conditions are sim...
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BongJoo Jeong, Jun-Hee Han and Ju-Yong Lee
This study considers a scheduling problem for a flow shop with urgent jobs and limited waiting times. The urgent jobs and limited waiting times are major considerations for scheduling in semiconductor manufacturing systems. The objective function is to m...
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Masumi Inoue, Heesup Choi, Yuhji Sudoh, Koichi Ayuta
Pág. 22 - 24
This study aimed to clarify the leaching properties of nitrite ions in nitrite-type repair materials exposed to rainfall. Repaired concrete specimens were prepared for leaching tests using a lithium nitrite solution, and the amounts of leaching and penet...
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Julia Lange and Frank Werner
The job shop scheduling problem with blocking constraints and total tardiness minimization represents a challenging combinatorial optimization problem of high relevance in production planning and logistics. Since general-purpose solution approaches strug...
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