Recently Hydraulic Press has been generally used as a labor-saving device in several functions through industrial section. Previously most of the factory merely concern about using this powerful device and that caused so much electric energy wasted during the pending process on equipment transformation. Therefore our team initiated a conceptual study of energy consumption on using hydraulic press. The invention of hydraulic press for the study of electric energy requires hydraulic devices installation. This includes 3.7 kW 3 phases system induction motor and VSD hydraulic pump single shaft 2 sets set 1 low flow high pressure at flow rate 3.65 liters per minute and set 2 high flow low pressure at flow rate 6.79 liters per minute and total flow rate 10.44 liters per minute pressure relief valve and 2 ports 2 positions Bypass control valve and 4 ports 3 positions directional control valve double acting cylinder 100 mm diameter and 250 mm stroke and pressure gauge. The experiment on energy consumption using hydraulic press has been considered in 5 cases. Each case operated by different hydraulic devices in order to observe the differences of energy consumption. The result of experiment showed that case 1 had electric energy lost the most the rate of loss will increase as a percentage of the increase in pending. Case 2 to 4 with the lost of electric energy are similar. Case 5 is bringing the case 4 added VSD to adjust the speed of the electric motor is reduced to 435 rpm during the waiting period so this case had the lost of energy is minimal. After comparative experiment between case 1 and the other 4 cases during the pending process on equipment transformation at 20% - 200% it revealed that case 2 reduced electric energy wasted more than case 1 accounted for 17.07% - 30.46% while case 3 to 5 reduced electric energy wasted more than case 1 accounted for 16.06% - 29.52% 17.37% - 30.80% and 23.90% - 50.55% respectively

This abstract is aimed to study the problems and barriers in receiving the business administration students into co-operative education apprentice in accordance with the firms’ ideas on organizing and working processes qualifications knowledge and competence in the field of study. Population is the entrepreneurs or controllers who accept 180 fourth-year students of academic year 2255 to the internship programme. The data collection is using questionnaires. Statistics used in the data analysis are percentile means and stand deviation. The research results are as followed: 1. The problems and barriers on organizing and working process are at the high level. This implies that the firms are unable to coordinate with the institution to define and get the students ready before implementing.2. The problems and barriers on the qualifications of cooperative study students are at the high level. This implies that those students are unable to make decision to solve problems during internship. 3. The problems and barriers on knowledge and competence in their fields of study are at the high level. This implies that students are unable to communicate well both verbally and alphabetically in Thai and foreign languages.

Currently the pineapple leaf paper that is produced by using local wisdom is 50 centimeters wide and 64 centimeters long. Therefore the product of the Cooperative is small. And because the size of the paper is limited they cannot be used for producing room divider big umbrella or big painting as per customer’s demand and the members of the cooperative cannot produce large sheet of paper. The researchers therefore designed the Pineapple fibrous leaf sieving Equipment in order to produce large sheet of paper. The equipment consists of a square basin for washing leaf fiber sized 185 centimeters 10 centimeter deep with a 90-centimeter high stand to support the basin and installed the mechanism to lift up the sieve that is used to take up the pineapple leaf fiber. The sieve is 150 centimeters x 150 centimeters which is the largest size possible because the leaf fiber washing must is done by hand. If the sieve is bigger we will not be able to reach to the leaf fiber in the center. Base on the experiment of pineapple leaf paper production by using the new equipment as compared to the paper production as per local wisdom by using 2.5 kilograms pineapple leaf fiber and the paper thickness shall be fixed at 0.35 millimeters it is found that the production that use pineapple fibrous leaf sieving equipment takes 647 second on average and the production as per local wisdom takes 1421 second on average. In other words the equipment can help to reduce the time in paper production of 774 second or 54 %. Apart from that the researcher produced the paper with different thickness by increasing the pineapple leaf fiber by 0.5 kilograms per one sheet of paper so that there are more options to choose in order to match with various products. The amount of leaf fiber used in the production starts from 3 kilograms to 7.5 kilogram per sheet and the thickness of the paper is from 0.36 millimeters and the thickest paper is 1.2 millimeters thick using approximately 7.5 kilograms of leaf fiber. If we use more leaf fiber for paper production the paper will be overweight and it will be sagging.

The objectives of this study were to determine the need to develop human resources for employees in the rubber industrial in Thailand and to compare the difference of need for human resource development of employees in the rubber industrial who have differences of personal status.The study was conducted as a survey research by using a questionnaire to collect data. The samples of this research were employees who work in the rubber industry of Thailand. result was 400. The statistics treatments included frequency percentage mean standard deviation and one-way analysis of variance. Research findings: The need to develop human resources for employees in the rubber industrial in Thailand was overall at high level. Considering in specific aspects found that the need of employee to develop the most is their work environment which had the highest mean followed by the need to develop self development training and education respectively. And Employees with difference in personal status such sex age and marriage status and income level have no different in the need of human resources development. While employees with difference in educational level work experience and working position have a difference of need in human resources development.

The aim of this research is to create the center of mass testing machine for vehicles with maximum mass 3000 kilograms. By the performance of this machine is able to determine the center of mass 3 axis by horizontal longitudinal and vertical. On the other hand the verities of mass from 50 to 250 kilograms and the several of weight distribution at horizontal and longitudinal are applied to the condition of testing for reasonable to the position of the center of gravity for vehicle. The result of research discovered to the performance of center of mass tester was activated following to test conditions. Furthermore the position of the horizontal of center of gravity depends on the weight distribution at horizontal axis and an increasing of mass under non-uniform along the longitudinal and horizontal axis. In term of the position of the longitudinal of center of gravity the weight distribution at longitudinal axis and an increasing of mass rate are points. Otherwise the weight distribution at longitudinal axis and an increasing of mass are effect to the position of the vertical of center of gravity.