Balfour Beatty wins second Air Force housing.The US Air Force has selected Balfour Beatty Communities as preferred bidder for its latest residential housing concession [ FROM AUTHOR]EBSCO_bspProject Finance & Infrastructure Finance
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For example, once the air velocity at the bottom air inlets has been increased, the airflow cannot form a rounded airflow like B at low angles of air supply, and the airflow will be directed towards the occupants next to the aisle, while at high angles of air supply, an airflow organ...
e dt Azρs (9) During the combustion process, the hot smoke entrains the surrounding air during the upward movement to form a plume. In the plume theory, there is a law of conservation of mass between the amount of smoke and the entrained air, so the amount of smoke generated depends...
As a result, an upward jet started to be generated under the combined effects of attraction force of the wall and buoyancy force. Then the bubble reached a minimum volume around 8.85 ms as shown in Figure 6e. At this moment, the secondary shock wave [42] was released as marked in ...
In the indoor environment, pesticides are usually semi-volatile compounds that may exist in either gas or particulate form according to properties, such as the vapor pressure, product viscosity, and water solubility [94]. In addition, it has been indicated that carpet and textiles are likely to...
A constant high voltage and driving electric signal are applied between the membrane and back plate and they force the membrane to vibrate. Such transducer possesses a quite wide bandwidth but usually operate in the frequency range higher than a few hundreds of kHz [34–36]. In addition, they...
For each displacement increment ∆a of the spring, the current force Fa in Equation (7) changes accordingly with a constant value of the stiffness in Equation (12): Fa+∆a = Fa + Ka(P)∆a (13) Although Ka depends on the air pressure, it is assumed to be constant during the ...