This research is to study the condition problem and needs of the organization in the management of supplies of parcel operators. Faculty of Liberal Arts Rajamangala University of Technology Phra Nakhon all 4 aspects are procurement Control and distribution of parcels Maintenance And the distribution of supplies to study guidelines for the development of parcel management for parcel workers Faculty of Liberal Arts Rajamangala University of Technology Phra Nakhon Classified by problem condition and procurement development approach by collecting data between October 2019 and September 2020 it was a survey research using questionnaire tools which consisted of 3 parts: The respondents which were demographic characteristics 2) problem conditions and procurement development approach and 3) other recommendations. Personnel under the Faculty of Liberal Arts Rajamangala University of Technology Phra Nakhon number 100 people. The data analysis used descriptive statistics for demographic characteristics. And use statistical statistics for the analysis of related factors. The study found that Problem condition and procurement development approach Faculty of Liberal Arts Rajamangala University of Technology Phra Nakhon Procurement side Chief supplies officer and the supplies staff have knowledge and understanding in the performance of their responsibilities which are clear transparent fast and prompt to use. Procurement follows regulations at every step. Meet the desired purpose Control and distribution of parcels Chief Master at Supplies And parcel staff to advise on the control and distribution of parcels There is an annual inspection of parcels to be in accordance with the prescribed rules. Complete and correct in accordance with regulations Procurement Act B. E. 2560 Supplies Maintenance There is a record of the equipment history for the benefit of use and maintenance. And the parcel officer has to record and maintain the parcel efficiently and can be used all the time. Parcel distribution The damaged parcel is sold in accordance with the regulations. The parcel officer has knowledge and understanding in the process of disposing of parcels correctly.

The purpose of this research was to study and compare the reliability of Allen’s method (ΩW) and McDonald’s method (ωMD) using a NEO Five – Factor Inventory Scale and three different extractions with three different sample sizes. The sample was freshmen of Rajamangala University of Technology in Bangkok area. The results of the research were as the reliability of multidimensional scale from different extractions within the different sample sizes when using ΩW and ωMD were different with statistical significance at the level of .05. The estimation of reliability of multidimensional scale was most appropriate when using 3000 pseudo populations as the representative of large sample. The extraction of generalized least squares or principal factors with ΩW should be used with the sample sizes of 100 and 200 while the extraction of principal factors with ΩW should be used with the sample size of 500.

The objectives of this research were to find the distribution of food demand for laying hens and to find the optimum amount of that food production which had minimum cost. The data consisted of customer purchase orders for the food of laying hens price of food for laying hens cost per unit for the food inventory cost related to food of laying hens in which the food was out of stock such as fine overtime urgent purchase for material. They were collected in 2008-2009 form a factory in Nakhonratchasima province. The collected data were analized in order to explore the distribution of the monthly food demand for the laying hens and to see the rate of inventory per unit. The results were used in the stochastic linear programming model for aggregate planning in which the optimum production minimum cost could be obtained. Programming algorithm in MATLAB and tools in Linprog software were used to get the solution. The distribution of the food demand for laying hens and the random numbers were used in the model. The study found that the distribution of food demand for laying hens every month has normal distribution (January to December). The monthly average amount of production from January to December were 10936.94 12913.74 11898.12 13096 15443.26 14916.33 10322.64 10818.21 11393.11 11700.72 9706.05 and 11702.05 respectively. The minimum total cost average for 12months was Baht 62422386.98.

This research offers. The system dynamics study of supply chain processes in the manufacturing industry. The production is made-up of make to order from the building stock and flow with the fourth cycle and parameters define to test the behavior by using Vensim program to simulation situation by the time 50 weeks showed that the response to increases in the order of 20% in the production process made the amplification behavior. The process resulted in levels of inventory bog down. The reduction of inventory conflicts with the desire to keep the inventory caused by delays of customer change. The organizational behavior is not balance the products backlog and made the level of order fulfillment ratio lower than 100%