نتایج جستجو برای: first time
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It is usually stated in the literature that Geneva was first city to adopt mean solar time, 1780, followed by London (or whole of England) 1792, Berlin 1810 and Paris 1816. In this short paper I will partially revise statement, using primary references when available, provide dates for a few other European cities. Although no exact date found public use primacy seems belong England, 1778-1779 (...
The study investigated, first, the benefits reported by first-time parents after attending a Families First mentalization-based group intervention and, second, looked for indicators of mentalizatio...
In this paper, we consider a multi-period, multi-product production planning problem where the production rate and the customer service level are random variables due to machine breakdowns. In order to determine robust production plans, constraints are introduced in the stochastic capacitated lot-sizing problem to ensure that a prespecified customer service level is met with high probability. T...
The class of closed patterns is a well known condensed representations of frequent patterns, and have recently attracted considerable interest. In this paper, we propose an efficient algorithm LCM (Linear time Closed pattern Miner) for mining frequent closed patterns from large transaction databases. The main theoretical contribution is our proposed prefix-preserving closure extension of closed...
Recently, a step-stress accelerated degradation test (SSADT) plan, in which the stress level is elevated when the degradation value of a product crosses a pre-specified value, was proposed. The times of stress level elevating are random and vary from product to product. In this paper we extend this model to a more economic plan. The proposed extended model has two economical advantages compared...
The mean first passage time (MFPT) for a Brownian particle to reach a small target in cellular microdomains is a key parameter for chemical activation. Although asymptotic estimations of the MFPT are available for various geometries, these formula cannot be applied to degenerated structures where one dimension of is much smaller compared to the others. Here we study the narrow escape time (NET)...
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