Volume 3 Issue 1

Authors: Ramzan Gholami; Amir Abbas Yazdani

Abstract: Decision making has been described as one of the principles of management and considering the importance of supply chain in any organization, the necessity of optimized organizational management and pursuance of a desirable decision making pattern, decision making therefore has an important role in improvement of any organization. Operations research techniques are suitable tools for decision making processes. In this paper, we intend to present a reliable and applied pattern for assessment of our organization's indices and selecting suitable suppliers for raw materials by combining group AHP approach and the TOPSIS technique. The case study of the present research is Mazandaran wood & paper industries (MWPI), which is the largest producer of paper in the Middle East and uses a continuous production line for producing its products. Many types of raw materials play critical roles in its processes and the above mentioned company always has to make logical decisions and select suitable suppliers.

Keywords: Supplier Chain; Management; AHP; TOPSIS


Authors: Jie-Wen Chen; King-Lien Lee

Abstract: In order to make more functions of a systematic product, we have successfully innovated two different functional backlight modules by the theory of inventive problem-solving (TRIZ). To illustrate the process of a prototype design in innovative function, there are two case studies that an optical film is designed by innovative function processes and made the existing patent of a backlight module more advantageous.

Keywords: TRIZ; Optical Film; Backlight Module


Authors: Divas Karamanzia; Hong Mu; Thomas Rauschenbach

Abstract: Modeling river networks in plains such as deltas due to bi-directional water flows is a major challenge. An example of such a plain land is the delta region between Yangtze and Taihu Lake. Besides the Yangtze, the area is composed of several rivers, channels, tributaries and the Taihu Lake, which is one of five largest freshwater lakes in China with a total basin stretching over an area of 36.500 km2 of the plain land of the Yangtze Delta. This area is of great interest, because it is the most socially and economically developed region in China. There is natural water exchange between the Yangtze River and the local river network due to daily and seasonal tidal effects. The water from Yangtze is used for adjusting the water levels of local rivers for flood protection and navigation (i.e. securing the water transport way (Baiqugang River) between Taihu Lake and Yangtze River. Other uses of the water resources in the area include, irrigation and drainage for the agricultural areas, water for the industry and households and lastly water for maintaining the flow rate in the local river network and hence the water quality. Therefore, diverse types of artificial water conservancy projects (sluices, pumps, barriers) have been built for different purposes and specifications in the area. In order to be able to apply optimal control methods for water allocation to the multiple targets, a model based computer simulation model is required. Such a simulation model of the river system is described in this paper. It takes the hybrid behavior (i.e. water levels change continuously and some control devices such as barriers are either open or closed) of the system into consideration.

Keywords: Bi-Directional; Water Flow; Hybrid System; River Network; Water Resources Management