exposure to cold work environment is an occupational health hazard and poses adverse effect on workers health, performance and productivity. this study was performed in a cold food-storage warehouse complex in tehran-iran in order to evaluate the workers' exposure to cold stress. twenty nine exposed workers and 33 non-exposed workers as control subject were included in this study. climatic fact...

Using ProModel simulation language, a universal warehouse storage simulation model has been developed. Applications of the model have been executed with success to analyze the storage capacity and rack efficiency of a medium volume, low stock-keeping unit (SKU) warehouse and a medium volume, large SKU warehouse. The model is scaleable and can be modified to simulate any warehouse configuration,...

Keywords: Facilities design and planning Warehouse design Warehouse performance evaluation model Case studies Computational tools a b s t r a c t This paper presents a detailed survey of the research on warehouse design, performance evaluation, practical case studies, and computational support tools. This and an earlier survey on warehouse operation provide a comprehensive review of existing ac...

Background: Contamination of stored pistachio nuts to Aspergillus section Flavi and aflatoxins (AFs) as well as effective parameters on fungal growth and AF production during storage was assayed. Methods: Twenty one pistachio nut samples were taken from some warehouse of Damghan county. Different parameters of storage, including temperature, relative humidity, and pest infestation were recorded...

In this paper, we study the multi-mode intelligent storage and retrieval systems in automated warehouse. Automated warehouse is the important component of modern Logistics. The storage and retrieval efficiency is an important problem in automated warehouse. Robot technology was used in the design of warehouses aiming to improve the efficiency greatly. The RFID technology is first applied to loc...

Defining data placement and allocation in the disk subsystem can have a significant impact on data warehouse performance. However, our experiences with data warehouse implementations show that the database storage layout is often subject to vague or even invalid assumptions about I/O performance trade-offs. Clear guidelines for the assignment of database objects to disks are a very common reque...

The World Wide Web contains a huge and increasing volume of information. The web warehouse is an efficient and effective means to facilitate utilization of information on the Web, not only to individual users but also to business organizations, especially for decision-making purposes. On the other hand, XML has recently become the new standard for representation and exchange of data on the Web....

In this paper, a supply chain model with power form stock-dependent demand rate is developed, incorporating the effect of learning and inflationary environment. In order to bring their research closer to reality, all the cost parameters involved in the model are considered fuzzy in nature. The demand rate is assumed to be a polynomial form of current inventory level in Own-warehouse. To display...

We investigate the problem of storage assignment in a warehouse served by milkrun logistics, i.e. vehicles circulating according to a pre-defined schedule between the warehouse and the production facilities of the plant. Such a logistic system results in an easy-to-characterize correlation among the request probabilities of the items in the warehouse. A MIP model is proposed that exploits this ...

In this paper, based on the application conditions of the existing traditional data warehouse and the future forecast of the Hadoop big data platform, this paper proposes the new framework of the cooperation of Hadoop and traditional data warehouse which focus on the cooperation between the traditional data warehouse and the Hadoop technique to solve the problem that the traditional data wareho...