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D. D. L. Chung
This is the first review of conductive electrets (unpoled carbons and metals), which provide a new avenue for low-power electronics. The electret provides low DC voltage (µV) while allowing low DC current (µA) to pass through. Ohm?s Law is obeyed. The vo...
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Woosuk Sung
This paper describes our best practices related to hybrid power system (HPS) development, with a focus on the specification development phase. The HPS specifications are based on the main development goals of our security robot, which place top priority ...
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Michael Schmidt, Veronika Hahn, Beke Altrock, Torsten Gerling, Ioana Cristina Gerber, Klaus-Dieter Weltmann and Thomas von Woedtke
A new configuration of a discharge chamber and power source for the treatment of up to 1 L of liquid is presented. A leakage transformer, energizing two metal electrodes positioned above the liquid, limits the discharge current inductively by utilizing t...
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Liah X. Coggins, Jesse Sounness, Lianpeng Zheng, Marco Ghisalberti and Anas Ghadouani
Wastewater infrastructure is expensive to build and maintain, and there is a need to focus on improving and modernising existing infrastructure before large capital investments are made to service future population needs. Waste stabilisation ponds (WSPs)...
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M. Anil Kizilaslan, Ender Demirel and Mustafa M. Aral
Three-dimensional numerical simulations are performed to evaluate the effect of porous baffles on the efficiency of water treatment contact tanks. A second-order accurate numerical model is employed for the solutions of unsteady flow and tracer transport...
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Steven Eugenius Marijnus Ros and Koen Gerardus Zuurbier
Aquifer storage and recovery (ASR) of local, freshwater surpluses is a potential solution for freshwater supply in coastal areas, as is brackish water reverse osmosis (BWRO) of relatively shallow groundwater in combination with deeper membrane concentrat...
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Daiane Cristina de Freitas, Fernando Hermes Passig, Cristiane Kreutz, Karina Querne de Carvalho, Eudes José Arantes, Simone Damasceno Gomes
Pág. 469 - 476
The study of the hydrodynamic behavior in reactors provides characteristics of the flow regime and its anomalies that can reduce biological processes efficiency due to the decrease of the useful volume and the hydraulic retention time required for the pe...
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Shaoyuan Bai, Tao Lv, Yanli Ding, Xuefen Li, Shaohong You, Qinglin Xie, Hans Brix
Pág. 1 - 16
This study aimed at optimizing horizontal subsurface flow constructed wetlands (CWs) to improve hydraulic performance and pollutant removal efficiency. A groundwater modeling package (MODFLOW) was used to optimize three design parameters (length-to-width...
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Ender Demirel, Mustafa M. Aral
Pág. 1 - 17
Mixing characteristics of multi-chambered contact tank are analyzed employing the validated three-dimensional numerical model developed in the companion paper. Based on the flow characterization, novel volumetric mixing efficiency definitions are propose...
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