Coal gangue is used to replace cement clinker prepare cementitious material via activation techniques. Thus, the solid waste can be effectively disposed, and carbon emission from production processes significantly reduced. In this paper, product transformation, reaction mechanism, thermal kinetics of coal were analyzed by X-ray diffraction, analysis, infrared scanning electron microscopy. We em...

Several soft lithography-based polymer microfabrication techniques are described. These processes are capable of producing polymer microstructures from various materials including piezoelectric and conducting polymers. Two of the methods described are also capable of producing freely suspended microstructures, an important step in the implementation of polymers as functional mechanical structur...

Combined processes are a hybridization of the activated sludge and attached growth systems, including packed beds, suspended carrier materials, and rotating biological contactors. In general, having an fixed film component has a buffering effect in the event of a process disturbance. Process disturbances may include extreme hydraulic overloading, discharge of toxic compounds into the system, or...

A top-down design flow for suspended MEMS is described, starting with schematic capture of a design topology, followed by behavioral simulation, layout generation, parasitic extraction, and final verification. Support for this flow requires a MEMS hierarchical circuit representation and mapping of process, materials properties, design rules, and parasitic parameters into appropriate technology ...

An understanding of sorptive processes is key to describing the fate of chlorpyrifos [O,O-diethyl-O-(3, 5, 6-trichloro-2-pyridyl) phosphorothioate] in aquatic environments. The objectives of this study were to evaluate isotherms for adsorption and desorption of chlorpyrifos on colloidal materials and to advance understanding of interaction mechanisms between chlorpyrifos and colloidal materials...

Introduction: Colloidal materials and suspended solids cause turbidity in water. To remove turbidity, clarification method is used that includes processes of coagulation, flocculation, and sedimentation. Due to the long duration of coagulation process, coagulant aids are applied. Despite the favorable efficiency of synthetic polyelectrolytes as a coagulant aid, due to their harmful effects on h...

BACKGROUND Currently available vascular grafts have been limited by variable patency rates, material availability, and immunological rejection. The creation of a tissue-engineered vascular graft (TEVG) from autologous stem cells would potentially overcome these limitations. As a first step in creating a completely autologous TEVG, our objective was to develop a novel system for culturing undiff...

Suspended particles in water are a major concern in global pollution management. They affect the appreciation of water due to clarity, photosynthesis, and poor oxygen environment rendering water unsuitable for aquatic animals. Some suspended materials contain functional groups capable of forming complex compounds with metals making them available for poisoning. Such material promotes the growth...