The purpose of the study was to experimentally test performance four types wall-mounted mechanical ventilation exhaust air outlet devices. A full-scale mock-up a segment an external wall with constructed. tested devices include gravity louver, fixed-blade louver plate, and nozzle. assessment included two experiments over airflow rate range 25–94 l/s at isothermal conditions no influencing wind:...

Marker based performance capture is one of the most widely used approaches for facial tracking owing to its robustness. In practice, marker based systems do not capture the performance with complete fidelity and often require subsequent manual adjustment to incorporate missing visual details. This problem persists even when using larger number of markers. Tracking a large number of markers can ...

Abstract Wall-mounted swirling ventilation is a new type of system in mechanized excavation faces with dust suppression performance that closely related to the blowing-to-suction flow ratio. Physical and simulation models were developed according No. C103 face Nahe Coal Mine Baise Mining Bureau, Guangxi Province optimize ratio for wall-mounted ventilation. Both k-ε turbulence model discrete pha...

A concrete block retaining wall is supported by its weight. This structure has some advantages, including lower construction costs, a water-permeable that produces less water pressure behind the wall, and more flexible because it can follow ground's contours. Rankine's theory usually used to design this wall. According theory, failure pattern forms an angle of 450 + • /2 with horizontal plane. ...

The optical alignment of the star trackers on the Global Precipitation Measurement (GPM) core spacecraft at NAS A Goddard Space Flight Center (GSFC) was challenging due to the layout and structural design of the GPM Lower B us Structure (LBS) in which the star trackers are mounted as well as the presence of the star tracker shades that blocke d line-of-sight to the primary star tracker optical ...

The main goal of the study is to test the applicability of Infrared Thermography for verification of Thermal Boundary Conditions at external non-isothermal walls bounding the flow domain. Experimental and numerical studies have been made for transient and steady natural convection in a differentially heated cube filled with water. The analysis is carried out for pure convection of water in the ...