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Rico Bartak, Wolfgang Macheleidt, Thomas Grischek
Pág. 1 - 13
Tracer and pump tests including depth dependent water sampling were performed to investigate the flow conditions inside and in the vicinity of an injection well with two screen segments used for subsurface iron removal (SIR). A high resolution groundwate...
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Huanhuan Qin
Numerical modeling has been adopted to assess the feasibility of centrifugal simulation of solute transport within the unsaturated zone. A numerical model was developed to study the centrifugal simulation of nonreactive, adsorption, radionuclide, and rea...
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Lebohang E. Koloti, Rosina Nkuna and Tonderayi S. Matambo
This study provides a theoretical baseline on the application of chemical and microbiological indicators as rapid system performance monitoring tools that will allow for timely corrective measures to maintain and improve the bioremediation performance of...
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Alexander Hauser, Michael Neubert, Alexander Feldner, Alexander Horn, Fabian Grimm and Jürgen Karl
The methanation process is discussed as one way to chemically store renewable energy in a future energy system. An important criterion for its application is the availability of compact, low-cost reactor concepts with high conversion rates for decentrali...
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Xiuqing Zheng, Kai Wang, Fei Zhang, Junfeng Chen, Aimin Li and Yanping Chen
The comprehensive geological, hydrogeological and hydrogeochemical model of the Liulin karstic spring area in the eastern limb of the Ordos syncline was established by a combination of chemical thermodynamics, chemical kinetics and hydrogeology. The stud...
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Ghasem Azimiroeen, Seyed Farshid Kashani-Bozorg, Martin Nosko and Saeid Lotfian
Friction stir processing (FSP) offers a unique opportunity to tailor the microstructure and improve the mechanical properties due to the combination of extensive strains, high temperatures, and high-strain rates inherent to the process. Reactive friction...
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Jana Barabás, Vojislav Jovicic and Antonio Delgado
This work deals with the numerical investigation of a three-dimensional, laminar hydrogen-air diffusion flame in which a cylindrical fuel jet is surrounded by in-flowing air. To calculate the distribution of gas molecules, the model solves the species co...
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Liyan Wang, Liang Lei, Kang Wan, Yuan Fu and Hewen Hu
Active films based on carboxymethyl chitosan incorporated corn peptide were developed, and the effect of the concentration of corn peptide on films was evaluated. Physicochemical properties of the films, including thickness, opacity, moisture content, co...
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Xiangzhi Zeng and Wencai Yang
When an earthquake occurs, it is not only the crustal material in the seismic zone that moves violently; the seismic waves of the earthquake with certain level of energy can act on the crust over large areas, producing remote effects that affect the livi...
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Dongsheng Liu, Bei Zhu, Haoyu Zhu and Jian Zhao
Set in the downstream riparian zone of Xin?an River Dam, this paper established a 2D transversal coupling flow and solute transport and reaction model by verification within situ groundwater level and temperature. The denitrifying methods and principles ...
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Maria Chiara D'errico
This study run experiment aiming to provide a ??exible and analytically elegant framework to reliably estimate the price elasticity of electricity demand. Inference pertains to the demand at hourly level in the Italian wholesale electricity market and us...
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Sheam-Chyun Lin, Yu-Ming Lin, Yu-Song Haung, Cheng-Liang Yao, Bo-Syuan Jian
Pág. 133 - 140
Pneumatic solenoid valve has been widely used in the vehicle control systems for meeting the rapid-reaction demand triggered by the dynamic conditions encountered during the driving course of vehicle. For ensuring the safety of human being, the reliable ...
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Xiguang Liu, Ditao Niu, Xingchen Li, Yao Lv and Qiang Fu
This paper presents an in-situ inspection and experimental investigation on the pore solution pH of concrete cover for the corrosion initiation of rebars under a long-term natural carbonation reaction. A 77-year-old steel mill was inspected, and 35 concr...
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Petr Kazarin, Anton Provalov, Vladimir Golubev, Sherry Borener, ... Alex Suchkov
Pág. 1364 - 1373
The paper presents results of the vortex safety analysis conducted for selected unmanned aircraft systems (UAS) operating alongside commercial aircraft in the terminal zone. The approach is developed on the basis of a dynamic model of an aircraft enterin...
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Mehdi Bidabadi, Milad Ramezanpour, Moein Mohammadi, Jalil Fereidooni
Pág. 157 - 164
This study investigates the important role of thermophoresis in flame propagation speed of nano-sized aluminum particles and water mixtures. To this aim, a one-dimensional steady state model was developed based on mass and energy conservation equations c...
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Klaus Wallmann, Elena Pinero, Ewa Burwicz, Matthias Haeckel, Christian Hensen, Andrew Dale and Lars Ruepke
The accumulation of methane hydrate in marine sediments is controlled by a number of physical and biogeochemical parameters including the thickness of the gas hydrate stability zone (GHSZ), the solubility of methane in pore fluids, the accumulation of pa...
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Murat Demiral, Fethi Abbassi, Abolfazl Zahedi and Salih Akpinar
Single shear or single lap joints are the most prevalent type of adhesive joints used in advanced engineering applications, where they are exposed to fatigue loadings in their services. Although their mechanical performances under static loading have bee...
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Md. Amzad Hossain, Md Nawshad Arslan Islam, Martin De La Torre, Arturo Acosta Zamora and Ahsan Choudhuri
This paper presents the flow and flame characteristics of a highly turbulent reactive flow over a backward-facing step inside a windowed combustor. Flow and combustion experiments were performed at Re = 15,000 and Re = 30,000 using high-resolution 10 kHz...
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Jianxiu Qin and Dehua Zhu
Two-dimensional oblique detonation waves (ODWs) induced by finite wedges in a stoichiometric hydrogen?air mixture have been investigated numerically based on reactive Euler equations with a detailed chemical reaction model. The main zone affected by the ...
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Zhiqiang Zhang, Haixue Li, Fawang Zhang, Jiazhong Qian, Shuangbao Han and Fenggang Dai
The Fengfeng mining area is in the transition zone between the North China Plain and the Taihang Mountains, and groundwater is the main source of water supply in the district. Under the combined influence of human activities and natural geological condit...
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