边缘? 中心?──试论陈大为诗作之“中国”

陈大为的诗笔不断出入历史与当下、中国与南洋、台湾与南洋等多重现实与想象纠缠的空间,以之来建构其叙事美学。此处试图针对陈大为诗中的"中国"符号,再探所谓中心/边缘的意识归属,试着从太简化的文化母国/离散文学的二元对立跳脱出来,观察其书写位置的流动性。     

Freezing the master production schedule in multilevel material requirements planning systems under deterministic demand

This paper extends the studies by Sridharan, Berry, and Udayabhanu from single-level MPS systems to multilevel material requirements planning (MRP) systems, and examines the impact of product structure, lot-sizing rules and cost parameters upon the selection of MPS freezing parameters under deterministic demand. A model is built to simulate the master production scheduling and material requirements planning operations in a make-to-order environment. The results show that all the MPS freezing parameters studied have a significant impact upon total inventory costs and schedule instability in multilevel MRP systems. First, the order-based freezing method is preferable to the period-based method. Secondly, the study finds that increasing the freezing proportion reduces both total inventory costs and schedule instability. This finding contradicts the finding by Sridharan et al. in single-level systems. Thirdly, the study finds that a higher replanning periodicity results in both lower total inventory cost and lower schedule instability. The study also indicates that the product structure and lot-sizing rules do not significantly influence the selection of MPS freezing parameters in a practical sense under most situations. However, the cost parameter seems to significantly influence the selection of replanning periodicity.     

《蒙特利尔公约》下之韩国航空承运人责任制度

国际民航组织1999年通过的《统一国际航空运输某些规则的蒙特利尔公约》于2003年11月4日生效,它对各国国内立法产生了深远影响.《蒙特利尔公约》采用两级责任制度规制航空承运人的责任,即对乘客人身造成伤亡达到10万特别提款权时适用严格责任原则,超过此限而无任何限制的适用举证倒置的推定责任原则.韩国已与2011年4月29日通过了商法典第6部分之国家航空运输法,该法明确了对乘客以及行李和货物造成损害的责任条款,并采用了《蒙特利尔公约》中的主要责任原则.韩国有关航空承运人责任的国内法将有效解决在运送乘客、行李和货物方面有关承运人责任的争议,并在其规定的抗辩和限制范围内,为受到损害的乘客和托运人提供适当赔偿.     

Maximizing product mix profitability - what's the best analysis tool

This paper takes a look at product mix profitability and compares several alternative methodologies for selecting the optimal product mix. It is argued that the optimal product mix is not determined using traditional accounting methodologies and that dropping marginally profitable products based on the accounting rules will give you less than optimal profitability. This paper looks at two different ways for coming up with the optimal product mix: one using theory of constraints (TOC) and another using linear programming.     

21世纪中国当代文学研究在韩国--以相关期刊杂志为例

21世纪，韩国研究者对中国当代文学研究的视野逐渐开阔，所研究的课题也在与时俱进，从单一的研究模式扩大到“多元化”的角度发展，也突破了外国学者的局限。这些研究范围的扩展使“韩国的中国当代文学研究”更能实现“国际化”和“本土化”，同时也推进了中国当代文学在世界文化交流的发展。     

STRUCTURAL CHANGE, COMPETITIVE BALANCE, AND THE REST OF THE MAJOR LEAGUES

Analyzing North American major sports leagues other than baseball, we find no break points in competitive balance time series corresponding to rule changes, the draft, free agency, salary caps, or labor disputes except for the 1998 basketball lockout. Some expansion and team relocation correspond with break points. Mergers that do correspond with break points all enhance competitive balance. But not all expansions, moves, and mergers correspond with break points. Remaining explanatory challenges include a general negative trend in competitive balance in basketball and the occurrence of a break point in football, 1976–1977. ( JEL C32, L83)     

Heterogeneous dispatching rules in job and flow shops

This paper reports the results of a study of the use of heterogeneous dispatching rules for the scheduling of work in a job shop. The methodology employed included discrete event simulation, using rule combinations determined by prior genetic algorithm searches and generalization using neural networks. Eight dispatching rules were considered, including first in first out (FIFO), earliest due date ( EDD), shortest processing time (SPT), slack/ number of operations (SLK), critical ratio (CR), modified due date (MDD), modified operation due date (MOD), and apparent tardiness cost (ATC). A three-machine job shop was studied, in which three work organizations were employed, pure flow (fixed sequence), pure job shop ( random sequence), and a hybrid shop where flow is random but with unequal probabilities. Three levels of machine loading were used and average tardiness was used as the performance measure. In most cases, modified due date and apparent tardiness cost were the best rules. The application of the best rules effected the results primarily when applied to bottleneck machines or the first machine in a pure flow shop. Nearly any other rule was acceptable on non-botdeneck machines except FIFO and CR, which consistently perform poorly. No major advantage of mixing rules was found.     

Iterated Bootstrap-t Confidence Intervals for Density Functions

Abstract.  Conventional bootstrap- t intervals for density functions based on kernel density estimators exhibit poor coverages due to failure of the bootstrap to estimate the bias correctly. The problem can be resolved by either estimating the bias explicitly or undersmoothing the kernel density estimate to undermine its bias asymptotically. The resulting bias-corrected intervals have an optimal coverage error of order arbitrarily close to second order for a sufficiently smooth density function. We investigated the effects on coverage error of both bias-corrected intervals when the nominal coverage level is calibrated by the iterated bootstrap. In either case, an asymptotic reduction of coverage error is possible provided that the bias terms are handled using an extra round of smoothed bootstrapping. Under appropriate smoothness conditions, the optimal coverage error of the iterated bootstrap- t intervals has order arbitrarily close to third order. Examples of both simulated and real data are reported to illustrate the iterated bootstrap procedures.