This study discusses the retailer’s optimal replenishment policy for products with a seasonal demand pattern. The demand of seasonal merchandise such as clothes, sporting goods, children’s toys and electrical home appearances tends to decrease with time. In this study, we focus on “Special Display Goods”, which are heaped up in end displays or special areas at the retail store. They are sold at...

the Western world and consequently the study of normal and pathological heart behavior is an active research area. In particular, the study of the shape and motion of the heart is important because many heart diseases are strongly correlated to these two factors. The human heart is composed of two separate pumps: a right heart that pumps the blood through the lungs and a left heart that pumps t...

introduction spiral conveyors effectively carry solid masses as free or partly free flow of materials. they create good throughput and they are the perfect solution to solve the problems of transport, due to their simple structure, high efficiency and low maintenance costs. this study aims to investigate the performance characteristics of conveyors as function of auger diameter, rotational spee...

An accurate segmentation is critical, especially when the tumor morphological changes remain subtle, irregular and difficult to assess by clinical examination. This quantitative measurement depends on the accuracy of the segmentation method used. The undesired partial volume effect, which lies on a boundary between a high intensity region and low intensity region, makes unerring boundary determ...

In neurological disorders such as Parkinson's disease, examination of the living brain by high-resolution positron emission tomography (PET), combined with the appropriate pharmacokinetic and physiological analyses, can provide valuable quantitative information of altered brain function. The primary objective of the thesis is accomplished by developing a volumetric process for the quantitative ...

During the past decade, the feature extraction and the knowledge acquisition based on video analysis have been extensively researched and tested on many applications such as Closed-Circuit Television (CCTV) data analysis, large-scale public event control, and other daily security monitoring and surveillance operations with various degrees of success. However, since the actual video process is a...

Alzheimer’s disease (AD) is a progressively neuro-degenerative disorder. In the AD-related research, the volumetric analysis of hippocampus is the most extensive study. However, the segmentation and identification of the hippocampus are highly complicated and time-consuming. Therefore, a MRI-based classification framework is proposed to differentiate between AD’s patients and normal individuals...

in this paper, the flow of couple stress fluid is investigated in a helical screw rheometer (hsr). by unwrapping the channel, lands, and the outside rotating barrel, the geometry of hsr is approximated as a shallow infinite channel. both one- and two-dimensional analysis of the problem is presented using rectangular coordinates. in either case an exact solution of the flow problem is presented ...