The impermeability of concrete the exterior wall underground tunnel in water-rich stratum is a key concern engineers. Taking Aixihu highway Nanchang city as an example, side tested, through multiple tests, such embedded steel pipe, water injection, and field observation. results show that, under action 2mpa pressure, no flow permeates from tunnel, indicating that impermeable performance this se...

side weirs are flow diversion devices that are widely used in irrigation, drainage and urban sewage systems. the present study focuses on the investigation of the effect of oblique side weirs on the discharge coefficient of a side weir under subcritical flow condition in rectangular channels. in this study 106 laboratory tests were conducted and the results were analyzed to find out the influen...

objective: the usage of pesticides has increased during the recent years. one the other hand, presence of harmful pesticides residue in rice and other food has caused a great concern among the consumers. therefore, it is important to develop some pragmatic procedures to increase the food safety along with the reduction in consumption of pesticide residues. methods: a gas chromatograph with elec...

Previous observations have indicated homology in the cellular components between Collembolan eyes and the compound eyes of insects. However, behavioral or physiological studies indicating similarities in function are lacking. Collembolan eyes were examined from three species in the Family Isotomidae using scanning electron microscopy. Collembolan eyes are arranged dorsally and laterally on each...

Augmented test suite generation is a technique to minimise test effort and duration. Modified condition and decision coverage (MC/DC) is a white box software testing criteria targeting to prove all the conditions involved in a predicate which can influence the predicate value in an efficient way. The coverage analysis is a structural testing method, which helps to remove gaps in a test suite an...