Abstract Ultra-thin whitetopping (UTW) is a thin (5-10 cm) layer of concrete overlaying over an existing asphalt pavement. This bonded on the surface. Although UTW has been successful in strengthening pavement, some cases, composite pavement may debond at interface under slab due to high shear stress. paper aims determine strength required for systems using theoretical methods and calibrated nu...

Rockburst is one of the main dynamic disasters in coal mines; it great significance to accurately evaluate risk zoning rockburst for mine safety construction and pressure relief design. Taking Gaojiapu Bingchang mining area Shaanxi Province as study area, this paper quantifies complex geological structure based on fractal theory establishes evaluation model index by LS-FAHP-CRITIC method combin...

In the upstream oil and gas industry Slug Catcher is a separator to separate heavy liquid hydrocarbons gaseous lighter fraction. cylindrical pressure vessel which has horizontal orientation designed with an internal of 84.37 kg/cm2 , 73,89 °C temperature, 3 mm corrosion allowance, 3,500 length, 1,750 diameter. This paper aims design from mechanical side that safe able withstand stress caused by...

One of the main concerns to design earth dam is the stability of the upstream slope of the earth dam in phase of rapid drawdown. Confined pore water pressure reduces the effective stress in this mode, so possibility of the instability and slippage will be increased. The main goal of this research is to investigate changes in the pore water pressure by using horizontal drains in upstream slope o...

The triple jump is one of two track and field events in which the athlete aims to maximize the horizontal distance jumped. This jump is comprised of 3 take-off phases (hop, step, and jump), each playing an important role, as they require the jumper to tolerate extremely high forces of impact and to maintain a high level of horizontal velocity. The purpose of the study was to investigate the bio...

CONCLUSIONS Time constant and maximum slow phase velocity (SPV) of head-shaking nystagmus (HSN) demonstrated a differential canal response to head shaking in 24% of patients with posterior canal benign paroxysmal positional vertigo (BPPV). We suggest that vestibular lithiasis has a limited contribution to the mechanism that generates HSN. OBJECTIVE To determine the canal response to head shak...

Busemann's concept of optimum altitude for rectilinear coasting flight has been extended to flight in a horizontal plane. The reachable domain of a vehicle in coasting flight in a horizontal plane, starting from an initial velocity, is obtained. It is shown that the area covered first increases with the altitude and then decreases to zero when the ceiling is reached. In particular, there exists...