The purpose of an excavator is to dig up materials and load them onto heavy-duty dump trucks. Typically, positioned at the rear truck when loading. In order automate this process, paper proposes a system that employs combined stereo camera two LiDAR sensors determine three-dimensional (3D) position truck’s cargo box analyze its loading space. Sparse depth information acquired from used detect p...

abstract   background: fractures of the tibia are important for their commonness and controversy in their management. both conservative and surgical techniques have been introduced in an effort to speed time to :::::union::::: while minimizing the occurrence of complications. standard treatment for low-energy tibial shaft fractures includes closed reduction and cast immobilization. the purpose ...

INTRODUCTION Seat belt use reduces the risk of injuries and fatalities among motor vehicle occupants in a crash, but belt use in rear seating positions is consistently lower than front seating positions. Knowledge is limited concerning factors associated with seat belt use among adult rear seat passengers. METHODS Data from the 2012 ConsumerStyles survey were used to calculate weighted percen...

The benefit of wearing a rear seatbelt in reducing the risk of motor vehicle crash-related fatalities and injuries has been well documented in previous studies. Wearing a seatbelt not only reduces the risk of injury to rear-seat passengers, but also reduces the risk of injury to front-seat occupant who could be crushed by unbelted rear-seat passengers in a motor vehicle crash. Despite the benef...

Reducing absorber layer thickness below 500 nm in regular Cu(In,Ga)Se2 (CIGS) solar cells decreases cell efficiency considerably, as both short-circuit current and open-circuit voltage are reduced because of incomplete absorption and high Mo/CIGS rear interface recombination. In this work, an innovative rear cell design is developed to avoid both effects: a highly reflective rear surface passiv...

The risk of death of unbelted rear-seat occupants is obviously increased in car crashes. However, there is little epidemiological evidence that unbelted rear-seat occupants will also increase the risk of death of front-seat passengers. We compared risk of death and severe injury of front-seat occupants in car crashes with belted or unbelted rear-seat passengers. The risk of death of belted fron...

One hundred ninety-five rear impacts with both front- and rear-seat occupants in the struck car, where at least one occupant sustained permanent disability, were selected for study. There was a significantly higher disability risk for the female rear-seat occupant compared with the male driver. Furthermore, a higher risk was found for female rear-seat occupants compared with female front-seat p...

As an essential part of the water conservancy hub, miter gate undertakes vital task navigational operation and works in a complex basin with high level drop for long time; therefore, it is necessary to ensure its safe operation. In this paper, taking Gezhouba No. 2 ship lock as example, actual stress crack signals are obtained using online monitoring system. The distributions under different wo...

Turbo generator shafts are often subjected to cyclic torsion resulting in formation of large longitudinal cracks as well as circumferential cracks. The presence of these cracks could greatly impact the shaft resonance frequencies. In this paper, dynamic response of a shaft with longitudinal and circumferential cracks is investigated through a comprehensive analytical study. The longitudinally c...