Large-diameter open caissons are a widely used construction solution for deep foundations, underground storage and attenuation tanks, pumping stations, launch reception shafts tunnel boring machines. The sinking phase presents number of challenges during construction, including maintaining caisson verticality, controlling the rate minimising soil resistance through use lubricating fluids. This ...

In the demand for recreational fishing sites, an important explanatory variable differentiating sites is the unobserved expected catch rate. Since the observed catch rate is subject to sampling variability, using the average of a site’s observed catch rates causes the parameter estimator on catch to be biased downward. We develop and demonstrate a solution to this errors-in-variables problem wh...

Compton suppression system was established to accurately and precisely measure low-level radiation during insitu measurement of sites. HPGe detector was selected as the main detector and plastics scintillation detector was selected as the guard detector. Using Cs source, while changing the height(h) and width(w) about plastic scintillation detector the gamma spectrum was simulated using the Mon...

1,5-Benzodiazepine derivatives were synthesized by the condensation reactions of o-phenylenediamine and ketones catalyzed by bismuth (III) salts under mild conditions. This method is easy, efficient, environment and eco-friendly, free of toxic catalysts, and gives good to excellent yields of 1, 5-benzodiazepines.

Off-site construction (OSC) offers a promising means to improve the efficiency of projects. However, lack experience and knowledge regarding its use results in errors design owing conflicts omissions considerations for OSC To mitigate these problems, manufacturing assembly (DfMA) is widely used include process. Several studies concerning DfMA application have been performed, but comprehensive p...