منابع مشابه
Moving Bins from Conveyor Belts onto Pallets Using FIFO Queues
We study the combinatorial FIFO stack-up problem. In delivery industry, bins have to be stacked-up from conveyor belts onto pallets. Given k sequences q1, . . . ,qk of labeled bins and a positive integer p, the goal is to stack-up the bins by iteratively removing the first bin of one of the k sequences and put it onto a pallet located at one of p stack-up places. Each of these pallets has to co...
متن کاملOptical conveyor belts: a new scheme for fiber communications.
A scheme is proposed for high-bandwidth, robust data transmission in silica fibers in the normal-dispersion regime. The scheme uses a uniform periodic train of dark solitons to eliminate completely the dispersion of a data stream encoded in linear pulses of small but otherwise arbitrary amplitude in the orthogonal polarization. Data pulses carried by dark solitons of differing contrast do not i...
متن کاملClostridium difficile in retail baskets, trolleys, conveyor belts, and plastic bags in Saudi Arabia
OBJECTIVES To determine Clostridium difficile (C. difficile) prevalence on retail surfaces and shoppers plastic bags. METHODS From 20 June to 10 August 2011, in a cross-sectional epidemiological study, 17 supermarkets from 2 cities, Albaha and Altaif, Saudi Arabia were sampled. A total of 800 samples, which comprised 200 samples per surveyed surface, were studied. These included baskets, trol...
متن کاملEfficacy of ultraviolet light exposure against survival of Listeria monocytogenes on conveyor belts.
Listeria monocytogenes has been repeatedly isolated from foods and food-processing facilities including food contact surfaces such as conveyor belts (CB). CBs are often difficult to clean and require rigorous sanitation programs for decontamination. Ultraviolet (UV) light has exhibited microbicidal properties on food contact surfaces and this study was conducted to determine the efficacy of UV ...
متن کاملAttachment of Salmonella serovars and Listeria monocytogenes to stainless steel and plastic conveyor belts.
In poultry industry, cross-contamination due to processing equipment and contact surfaces is very common. This study examined the extent of bacterial attachment to 6 different types and design of conveyor belts: stainless steel-single loop, stainless steel-balance weave, polyurethane with mono-polyester fabric, acetal, polypropylene mesh top, and polypropylene. Clean conveyor belts were immerse...
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ژورنال
عنوان ژورنال: Conservation Biology
سال: 2004
ISSN: 0888-8892
DOI: 10.1111/j.1523-1739.2004.1866_5.x