pipe drain installation depth is one of the most important design parameters, which has a key role in the drained water volume and quality. in this research, the effect of pipe drain installation depth was investigated by using a physical laboratory model. drains were installed at 0.25, 0.5 and 0.85 m deep in a cubical box with dimensions of 1*0.5*1 meter filled with a sandy loam soil. nitrate,...

Variable Refrigerant Volume multi connected air conditioning system is widely used in high-rise and super buildings because of its convenient control, flexible layout installation energy saving. However, for buildings, the outdoor wind environment has a significant impact on installation, operation performance units. In this paper, numerical simulation method to study variation characteristics ...

INTRIUM is an interactive sound installation exploring the inside vibration of the atrium. A certain number of architectural elements are fitted with acoustic sensors in order to capture the vibration they produce when they are manipulated or touched by hands. This raw sound is further processed in real-time, allowing the participants to create a sonic landscape in the atrium, as the result of ...

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Topographic decorrelation due to the local surface slope has been an obstacle to interferometric synthetic aperture radar (InSAR) applications. A modified spatial decorrelation function is derived as a function of the baseline and topography. This function explains the origin of the total topographic decorrelation phenomenon on the slopes directly facing radar illumination and layover, which ma...

We consider the numerical solution of the scattering of time-harmonic plane waves from an infinite periodic array of reflection or transmission obstacles in a homogeneous background medium, in two dimensions. Boundary integral formulations are ideal since they reduce the problem to N unknowns on the obstacle boundary. However, for complex geometries and/or higher frequencies the resulting dense...

Fall prevention is an important issue particularly for the elderly. This paper proposes a camera-based line-laser obstacle detection system to prevent falls in the indoor environment. When obstacles are detected, the system will emit alarm messages to catch the attention of the user. Because the elderly spend a lot of their time at home, the proposed line-laser obstacle detection system is desi...

Bio-inspired sensing modalities enhance the ability of autonomous vehicles to characterize and respond to their environment. This paper concerns the lateral line of cartilaginous and bony fish, which is sensitive to fluid motion and allows fish to sense oncoming flow and the presence of walls or obstacles. The lateral line consists of two types of sensing modalities: canal neuromasts measure ap...