Ultrasonic vibration gas-solid fluidized bed was proposed and introduced to separate fine coals (0.5-0.125 mm fraction). Several technological methods such as XRF, XRD, XPS, and EPMA were used to study the composition of heavy products to evaluate the separation effect. Results show that the ultrasonic vibration force field strengthens the particle separation process based on density when the v...

Incorporation of uranium recovery into wet phosphoric acid (WPA) processes can potentially supplement a significant portion of the world's uranium production and simultaneously benefit human health and environment by reducing radiological and toxic contamination of the phosphate fertilizer products. Liquid-liquid extraction as conventional uranium recovery methods applied in industrial suffers ...

Automated Guided Vehicles (or AGVs for short) have become an important option in material handling. In many applications, such as container terminals, the service area is often arranged into rectangular blocks, which leads to a mesh-like path topology. Therefore, developing efficient algorithms for AGV routing on the mesh topology has become an important research topic. In this paper, we presen...

The relationship between heat release rate and other fire reaction properties of fibre reinforced polymer composite materials is investigated. The heat release rate and fire reaction properties of thermoset matrix composites reinforced with combustible fibres (aramid, extended-chain polyethylene) or non-combustible fibres (glass, carbon) were determined over a range of heat flux levels using th...

A mathematical model, named FiresCone, was developed to simulate the pyrolysis and combustion processes of different types of combustible materials, which also took into account both gas and solid phases. In the present study, some non-charring and intumescent-protected polymer samples were investigated regarding their combustion behaviors in response to pre-determined external heat fluxes. The...

As with many products, the building code regulates the use of wood in construction. Two broad categories separate materials: combustible and noncombustible. Codes limit the application of combustible materials on the basis of fire and life safety. The question then is, ‘‘Are there options available in the 2009 International Building Code for using wood in structural applications in lieu of nonc...

BACKGROUND Roux-en-Y gastric bypass (RYGB) restricts food intake, and when the Roux limb is elongated to 150 cm, the procedure is believed to induce malabsorption. OBJECTIVE Our objective was to measure total reduction in intestinal absorption of combustible energy after RYGB and the extent to which this was due to restriction of food intake or malabsorption of ingested macronutrients. DESI...

The process of thermal processing brown coals grades 1B and 2B under external overpressure gases in the range 0–4.0 MPa is investigated. dependences main characteristics obtained products – semi-coke combustible gas-on pressure are established. material energy balances both coal given

Renewable active sludge is a smart material for wastewater treatment and the protection of surface water bodies. The generated pellets (dried pelletised dehydrated anaerobically stabilised excess sludge) are produced in quantity 31.4 ± 5.6 g dry matter (DM) per one Population equivalent (PE) calculated to COD (PECOD) day. As combustible material, their energy utilisation must reach sustainable ...