AFI AFMWorkshop AFPRO Filters AGATEC AGC AGCO AGECELEC AGI AGIERRE AGM-TEC AGMTEC AGRAMKOW AGRO AGROTOP AGS-Stellantriebe AGT THERMOTECHNIK AGTTHERMOTECHNIK AGx AHN AHP MERKLE AIAS AIDE AIGNEP AII AIM-TTI AIMTTI AIR DIMENSIONS AIR Logic AIR SQUARED AIR TURBINE AIR-TAK AIRAM AIRBORN AIRCOM AIRF...
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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...
Log mean temperature difference is a parameter used to calculate the driving force of heat transfer in flow systems, especially heat exchangers. It gives the logarithmic average of the temperature difference between the hot and cold flows at each end of the heat exchanger. 3. Results and ...
At drop radii above 500 µm, surface tension is overcome by weight force, and drop geometry deviates from the purely spherical. At r > 500 µm eddy shedding and sideways drift begins to occur [52] and collisions between large been evaluated in rain droplet studies (50 < r < 2 000 ...
In general, the aerostatic lift has no lift dependent on components, since helium gas is used to generate lift from buoyant force in such lighter-than-air (LTA) vehicles. There are also propulsion systems to overcome drag and control devices to provide multi-axis stability. Various researchers...
Once the nanocoating is applied, it is expected that a laminar and turbulent flow reduces the drag force by 40% and 15%, respectively. This in turn increases the fuel efficiency by 2% [27]. Nanocoating does not require geometric design modifications, and can be applied to any surface ...
Circumferential Excitation According to the excitation principle, two force loads are added sequentially to two adjacent zones with equal axial length of /4, where is the wavelength. The two loads have the same time duration, but with a time shift of T0/4 one after the other, where T0 is ...
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