منابع مشابه
The Japanese Post Office in Theoretical and Comparative Perspective
The post office is properly a mercantile project. The government advances the expense of establishing the different offices, and of buying or hiring the necessary horses or carriages, and is repaid with a large profit by the duties upon what is carried. It is perhaps the only mercantile project which has been successfully managed by, I believe, every sort of government. The capital to be advanc...
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Given a (master) set M of n points in d-dimensional Euclidean space, consider drawing a random subset that includes each point mi ∈ M with an independent probability pi. How difficult is it to compute elementary statistics about the closest pair of points in such a subset? For instance, what is the probability that the distance between the closest pair of points in the random subset is no more ...
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متن کاملKinematic analysis of post office employees' workstations.
This study analyzed a post office clerk's tasks, comparing two workstation models. The clerk was facing the client in one, and seated at 45 degrees to the counter in the other. We analyzed the most frequent tasks and those presenting the most critical points: 1) payment of a postal order; 2) accepting a registered letter, breaking them down into subtasks. We used an optoelectronic system for ki...
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since esp received universal attention to smooth the path for academic studies and productions, a great deal of research and studies have been directed towards this area. swales’ (1990) model of ra introduction move analysis has served a pioneering role of guiding many relevant studies and has proven to be productive in terms of helpful guidelines that are the outcome of voluminous productions ...
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ژورنال
عنوان ژورنال: Nature
سال: 1903
ISSN: 0028-0836,1476-4687
DOI: 10.1038/067370b0