due to the massive loss of leaves in parks and green spaces and big cities such as isfahan and the lack of domestic production of leaf vacuum shredder machine for use in large green spaces of parks, the design and construction of the collecting and recycling by the system is need so the design of the vaccum section which is one of the main parts and includes entrance, channels and ducts and exh...

Due to the massive loss of leaves in parks and green spaces and big cities such as Isfahan and the lack of domestic production of leaf vacuum shredder machine for use in large green spaces of parks, the design and construction of the collecting and recycling by the system is need so the design of the vaccum section which is one of the main parts and includes entrance, channels and ducts and exh...

Due to the massive loss of leaves in parks and green spaces and big cities such as Isfahan and the lack of domestic production of leaf vacuum shredder machine for use in large green spaces of parks, the design and construction of the collecting and recycling by the system is need so the design of the vaccum section which is one of the main parts and includes entrance, channels and ducts and exh...

The possibility of building a high voltage electrostatic air pump for cooling of microelectronics is investigated. Existing cooling technology no longer provides adequate heat dissipation due to excessive heat generation caused by the growing component density on electronic devices. Heat sink fins are packed more closely to increase the heat exchange surface area, resulting in narrower channels...

0894-1777/$ see front matter 2012 Elsevier Inc. A doi:10.1016/j.expthermflusci.2012.01.031 ⇑ Corresponding author. Tel.: +1 513 529 0718; fax E-mail address: [email protected] (A.D. Som 1 Tel.: +1 513 529 1933; fax: +1 513 529 5629. Air-flow induced water droplet movement on micro-patterned aluminum surfaces consisting of parallel grooves tens of microns in width and depth is considered, and ...

Over-the-air computation (AirComp) has been recognized as a low-latency solution for wireless sensor data fusion, where multiple sensors send their measurement signals to receiver simultaneously computation. Most existing work only considered performing AirComp over single frequency channel. However, network with massive number of nodes, channel may not be sufficient accommodate the large senso...

Over-the-Air (OTA) computation is the problem of computing functions distributed data without transmitting entirety to a central point. By avoiding such costly transmissions, OTA schemes can achieve better-than-linear (depending on function, often logarithmic or even constant) scaling communication cost as number transmitters grows. Among most common computed are linear weighted sums. In this w...