Automation in construction is one of the important issues in the field of robotics, but is distinct from factory automation (FA). Because of variations in materials and management, the role of automation in construction is often limited. A curtain wall is a large, heavy breakable object and requires precision installation, making it a better candidate for automated installation. A curtain-wall ...

abstract among activities that can be used to prevent piping phenomena and reduce seepage and exit gradient are installation of cutoff wall and drain under hydraulic structures. hence in this study, to investigating the influence of each mentioned parameter on uplift force and exit gradient a computer model has developed in which general equation of fluid flow into the isotropic and anisotropic...

Most 'Concord' vineyards in Arkansas have been trained to the Umbrella Kniffin (UK) system and pruned to a 30+10 schedule. In the Geneva Double Curtain (GDC) training system (a 1.2 m divided double curtain "T" type trellis) shoots are positioned vertically toward the vineyard floor. Under northern conditions, this system allows better distribution of fruiting spurs, reduced shading of interior ...

A majority of continuous mining machines employ a water spray system and a machine mounted flooded-bed scrubber to suppress and capture dust during coal mining. These machine mounted dust control systems must be designed to function within the localized face ventilation system at the mining section to control both dust and methane. Spray systems can impede or improve the scrubber effectiveness ...

This short notice presents a summary of the scientific contributions of Rainer Kemp (1949–2004) in the area of discrete mathematics, combinatorial enumeration, and analysis of algorithms. A complete bibliography of Kemp’s publications is included. Rainer Kemp, Professor of computer science at the Johann Wolfgang Goethe University of Frankfurt, passed away on May 14, 2004, eventually yielding to...

Several new varieties of airbags are under consideration for development. However, their commercialization decision must be backed by a positive Cost–Benefit Analysis (CBA) outcome. In this study, we propose a CBA framework for the frontal center curtain airbag, a newly designed safety system intended to reduce the injury risk of rear-seat passengers. The proposed CBA covers not only economic b...

Recently, metal curtain wall systems have been widely used in high-rise buildings due to many advantages, including being lightweight, rapid construction, and aesthetic features. Since the metal frame may lead to lower energy performance, thermal discomfort, and condensation risk due to the high thermal conductivity, its thermal performance can be important for the improvement of the overall th...