Spray aeration is a comparatively low-cost option to reduce trihalomethane (THM) concentrations in distribution system storage. The effect of spray on unregulated, toxic disinfection by-products was investigated bench-scale apparatus closed-tank and open-tank experiments. In the experiments, initially over 90% THMs, trichloroacetonitrile, chloropicrin were removed, while 36% dihaloacetonitriles...

In order to simulate red blood cell (RBC) behaviors in a flowing blood, we developed a mathematical model of an elastic RBC and their multi-body interaction based on the minimum energy principle. The results showed realistic behavior of multiple RBCs in a straight artery as well as single RBC behavior in a uniform shear flow including tumbling and tank treading motion observed in experiments. N...

There are two fundamental methods of simulating atmospheric flows physical models and mathematical models. With the first technique, scale model replicas of observed ground surface characteristics (e.g., topographic relief, buildings) are constructed and inserted into a chamber such as a wind tunnel or a water tank. The flow of air or other gases or liquids in this chamber is adjusted so as to ...

Osteoclasts are the principle bone-resorbing cells. Precise control of balanced osteoclast activity is indispensable for bone homeostasis. Osteoclast activation mediated by RANK-TRAF6 axis has been clearly identified. However, a negative regulation-machinery in osteoclast remains unclear. TRAF family member-associated NF-κB activator (TANK) is induced by about 10 folds during osteoclastogenesis...

Reservoir parks are the main place of storage petroleum products. There has been a tendency transition to use larger tanks in recent years, which is economically justified. However, it leads fire risk increase accumulate large quantities Tank one most dangerous emergency event, can lead not only significant material damage but also ecological human losses case spreading other tanks. To ensure s...

Responses of bacterial and archaeal communities to the addition of straw during anaerobic digestion of manure at different temperatures (37°C, 44°C and 52°C) were investigated using five laboratory-scale semi-continuous stirred tank reactors. The results revealed that including straw as co-substrate decreased the species richness for bacteria, whereas increasing the operating temperature decrea...

With the rapid development of world economy, petrochemical industry energy reserve strategy and production demand increase, storage tank farm scale is also expanding, continue to large, intensive direction development. In recent years, there are many disastrous accidents such as oil leakage, explosion combustion tank, so it necessary study behavior tank. This paper studies mechanism in crude ar...

The crashworthiness of helicopter fuel tank is vital to the survivability of the passengers and structures. In order to understand and improve the crashworthiness of the soft fuel tank of helicopter during the crash, this paper investigated the dynamic behavior of the nylon woven fabric composite fuel tank striking on the ground. A fluid-structure interaction finite element model of the fuel ta...

In recent years, the International Maritime Organization (IMO) has gradually introduced more stringent new Ship Energy Efficiency Design Index (EEDI) bills, and transport ships are inclined to reduce speed increase length square coefficient meet design requirements. However, size of ship model that can be accommodated in towing tank is seriously limited. Under action scale effect, accuracy pred...

‎the water wave generation by wave paddle and a freely falling rigid body are examined by using an incompressible smoothed particle hydrodynamics (isph)‎. ‎in the current isph method‎, ‎the pressure was evaluated by solving pressure poisson equation using a semi-implicit algorithm based on the projection scheme and the source term of pressure poisson equation contains both of divergence free ve...