The dispatching center of power-grid companies is also the data center of the power grid where gathers great amount of operating information. The valuable information contained in these data means a lot for power grid operating management, but at present there is no special method for the management of operating data resource. This paper introduces the operating analysis and data mining system ...

For performance reasons, it is desirable for Java just-in-time (JIT) compilers to statically identify array element accesses that can never cause an out of bounds exception, but the most precise analyses are too expensive to run in JIT compilers. We present verifiable annotations that can be added to Java programs to capture the results of range analyses as claimed linear inequalities and proof...

This research presents a heuristic for sequencing mixed-model production schedules for assembly lines when JIT production is an objective, and setup requirements are present. The heuristic examines a sequence and determines an objective function value based upon the parts usage rate (Miltenburg 1989) and the number of setups involved. This sequence is then altered in the hope of ® nding a bette...

In today's mixed-model assembly production, there are two recent trends in particular, namely increasing vertical integration and the proliferation of product variety, which more and more shift focus to an e cient just-in-time part supply. In this context, many automobile manufacturers set up decentralized logistics areas referred to as supermarkets . Here, small tow trains are loaded with part...

Dynamically typed languages are becoming increasingly popular for different software development scenarios where runtime adaptability is important. Therefore, existing class-based platforms such as Java and .NET have been gradually incorporating dynamic features to support the execution of these languages. The implementations of dynamic languages on these platforms commonly generate an extra la...

In modern times, far-reaching changes especially in production have taken place. Lean manufacturing systems require delivery strategies such as just-in-time or just-in-sequence that are synchronized with production demand to make sure the optimal amount of inventory is on hand at any time. This development comes along with both increasing dependence and cross-linking of inhouse-logistics system...

One of the most important tasks of automatic tool monitoring systems for CNC-lathes is the supervision of a tool's wear. Considering the state of wear and the actual working process (e.g. rough or nish turning) it is possible to exchange a tool (or only the insert) just in time, which o ers signi cant economic advantages. This paper presents a new method to estimate two wear parameters by means...