محمدرضا ابدالی

In this research, a model of the possible dynamic cumulative size of a single product with random demand and capacity limitations in the production and transportation network has been developed to minimize the total costs of maintenance, start-up, and overtime. In the proposed model, there is a possibility of transferring the launch of goods to the next period, which plays a significant role in reducing the cost of restarting. Static uncertainty strategies and various service level performance indicators are considered to limit the amount of post-drop demand. Common commercial agents have been used. It is demonstrated by the sensitivity analysis of the proposed model and its analysis at the level of different services that it is performing and efficient, and it also provides a more realistic perspective for planning in the face of uncertain demand conditions.

Nowadays, the level of readiness of specialized equipment and items in military-police enforcement organizations is very important because increasing the life and quality of the items in question will save a lot in the country. The main purpose of this study was to investigate the complications in the quality control processes of the specialized items of the organization under study; The sub-objectives were to investigate the complications of quality control processes in the design axis, to investigate the complications of quality control processes in the compliance axis, to investigate the complications of quality control processes in the performance axis, and to investigate the damages of quality control processes in the service quality axis. This research is of descriptive-analytical type and is in the category of applied research and has been done by survey method. A researcher-made questionnaire was used to collect field information. The statistical population of the study was 50 managers, commanders and senior experts of one of the military-police enforcement organizations, from all of whom information was collected. The results showed that out of 43 items examined in four axes (design, adaptation, performance and service), 14 of them are damaged.