نتایج جستجو برای: conveyer belt
تعداد نتایج: 17670 فیلتر نتایج به سال:
ResearcherS used two behavioral prompts to compare increases in safety belt use: a Click It or Ticket prompt or a Flash-for-Life prompt. Participants were 1,822 unbuckled drivers exiting two student parking lots of a large university. Research assistants identified unbuckled drivers, flashed one of the two prompts, and recorded whether drivers buckled after the prompt and the drivers' facial ex...
It was billed as a major disaster film about a serious subject. The movie The Day after Tomorrow describes the effects of global warming at a breathtaking pace. Global warming triggers the collapse of the Antarctic ice sheet beneath a team of polar scientists. In chain-reaction-like consequences, the collapse sends a 100-foot tsunami across Manhattan before the city is frozen in ice. Super-torn...
The interplay between topography and Indian summer monsoon circulation profoundly controls precipitation distribution, sediment transport, and river discharge along the Southern Himalayan Mountain Front (SHF). The Higher Himalayas form a major orographic barrier that separates humid sectors to the south and arid regions to the north. During the Indian summer monsoon, vortices transport moisture...
The quantity and composition of bioaerosols in a typical automated chicken egg layer management system (LMS) with a controlled internal climate (B) and without (A) were compared. The LMS-A used a fecal matter disposal system featuring a central opening in the floor through which the matter automatically dropped to an open-air lower level; the LMS-B used a conveyer belt below each hen battery se...
In this paper, we propose a design of a current controlled Quadrature Sinusoidal Oscillator. The proposed circuit employs three optimized Multi-output translinear second generation current conveyer (MCCII). The oscillation condition and the oscillation frequency are independently controllable. The proposed Quadrature Oscillator frequency can be tuned in the range of [198 261 MHz] by a simple va...
This article reviews 2 circuits, which are electronically controllable active-only floating positive and negative inductance simulators. Each floating inductance simulator comprises merely one operational amplifier (OA) and one current conveyer transconductace amplifier (CCTA). The simulated inductance values can be controlled electronically by adjusting bias current of the CCTA. The circuit pe...
OBJECTIVE Observe and report seat belt use among children transported in belt-positioning booster seats. DESIGN We conducted a cross-sectional, observational survey of children transported in motor vehicles between 2006 and 2007. While drivers completed a survey reporting the child's age, weight and gender, and the driver's age, gender, race, income, education, and relationship to the child; ...
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