An inventory model for deteriorating items over a fuzzy random planning horizon incorporating inflation and time value of money is studied. It is assumed that planning horizon follows exponential distribution with imprecise parameter. The model is formulated using cost minimization principle. As the fuzzy cost cannot be minimized directly, the possibilistic mean value of the fuzzy cost is found...

in order to analyze sport factors which increase productivity in sport centers, three questionnaires including personal information, identity of sport centers and the factors affecting productivity in these centers (7 axles) were prepared. after their validity (cronbach’s alpha 0.835) had been determined, they were distributed among sports teachers in hamedan. in order to analyze the collected ...

For manufacturing companies growing customer expectations, shortening product life cycles and increasing product variant numbers mean great challenges. Overcoming these is a major task for production planning, which is responsible for coordinating all business processes directly related to manufacturing. This paper presents important activities of production planning giving an integrative overv...

Bipedal walking is a challenging task for humanoid robots. In this study, we develop lightweight reinforcement learning method real-time gait planning of the biped robot. We regard bipedal as process in which robot constantly interacts with environment, judges quality control action through state, and then adjusts strategy. A mean-asynchronous advantage actor-critic (M-A3C) algorithm proposed t...

Background: To investigate a method for standardizing intensity modulated radiation therapy (IMRT) optimization for nasopharyngeal carcinoma (NPC), in order to reduce the influence of subjective factors. Materials and Methods: This study is based on example IMRT plans for NPC, which were randomly divided into data acquisition and data verification groups. Organs at risk (OARs) were analyzed for...

BACKGROUND Safety planning is a brief intervention that has become an accepted practice in many clinical settings to help prevent suicide. Even though it is quick compared to other approaches, it frequently requires 20 min or more to complete, which can impede adoption. A self-administered, Web-based safety planning application could potentially reduce clinician time, help promote standardizati...

BACKGROUND AND PURPOSE To compare intensity-modulated treatment plans of patients with head and neck cancer generated by forward and inverse planning. MATERIALS AND METHODS Ten intensity-modulated treatment plans, planned and treated with a step&shoot technique using a forward planning approach, were retrospectively re-planned with an inverse planning algorithm. For this purpose, two strategi...

Though the planning problem, including the computational complexity of planning , has been long studied in AI, the problem of planning with incomplete information has recieved relatively little attention. Planning with incomplete information may mean any one of a number of diierent things; It may mean that certain facts of the initial state are not known, that plans may contain sensing operatio...