Geometric structures of (1×1) and (1×2) Pt thin films on Pd(110) have been determined by dynamical lowenergy electron-diffraction analysis. The (1×1) structure is found to exhibit relaxations in the first two interlayer spacings of Δd12=-11.0% and Δd23=6.6% at a Pt coverage of one monolayer, and relaxations of Δd12=-6.6% and Δd23=4.4% at two monolayers. As for the (1×2) structure, the top three...

Abstract In the Republic of Uzbekistan, cotton cultivation is carried out on row spacings 60; 76 and 90 cm. The machine-tractor parks cotton-growing farms are equipped with agricultural machines designed for these inter-row they aggregated by tractors gauges them. Such a variety tractor creates problem mismatch between gauge spacing when moving from one to another, increases spare parts narrows...

width (Bruns and Abbas, 2003). The effects of even higher plant populations in the lower Mississippi River Populations for high yield and low mycotoxin levels in furrowvalley have yet to be documented. Early research on irrigated corn (Zea mays L.) have yet to be firmly established for the row spacings in corn in the Corn Belt and Mid-Atlantic Midsouth USA. Preplant N applications compared with...

in conventional cultivation of sugar beet the weeding and crust breaking are mostly performed manually. the objectives of this research were to design, fabricate and evaluate a soil crust breaker and weeding implement equipped with a detecting sensor. each unit consisted of a distance detecting sensor and a hydro-motor for driving the blades and pneumatic valves for moving the blades. the hydro...