This research aims to design and development of Industrial sewing machines to use for people with disabilities. Including study of Efficiency and performance of the equipment the installed sewing to assist in the sewing machine for disabled legs Conducting experiments by the target audience disabled leg from accident and leg disability from birth must use a wheelchair. By the disabled been experimenting with industrial sewing machines. For disabled legs Sew aprons in the 2 weeks. The results showed. That sewn of aprons by industrial sewing machinesfor person of disabled legs Can be sewnusing time of sewing/piece in week 2 of disabled leg from accident. And leg disability from birth. Decrease 25.09 percent and 40.07. and the number of pieces that have increased of industrial from period use of sewing machines. The average satisfaction of the design and use of industrial sewing machines for person of disabled legs are highest levels of 4.5 and 4.6 respectively

The purposes of this research Design and development from remnant fabrics by for Bann Ta Kien Ngam Community enterprises Nakhon Na yok province to study the technique and procedure of applying and designing from fabric knit in textile products . Therefore the researcher realize that the remnant fabrics which is unused in garment and apparel manufacturing process to be reused by transform to increase the value of products such as Textile home furnish to decorate the living room which is designed by hand Tufted machine and develop to be products and product design is nature design style. The processes can be divided into three parts which are surveying information creating the prototype and analyzing the products from fabric knit. The information are collected by using the questionnaire from the sample group to study about the general information and the opinion from the sample group for applying remnant fabric knit and transform to be the new products that are summarized that the using of remnant fabric to create the textile home furnish products for decorate the living room’s decoration is 49 percent. Thus the researcher choose the products that are appropriate with remnant fabric quality such as carpet cushions and backrest pillows And the second process is creating the prototype by using the technique of hand Tufted machine to create the designs for each product. Then the research survey the opinion of the sample group to for prototype. It can be summarize that the beautiful interesting design is 66 percent the beautiful and appropriate design is 56 percent the appropriate color using is 52 percent and the utility of the product is 60 percent.

The purpose of this research is to facilitate technology of limiting excess electricity from the source before supplying to the electrical appliances. The distribution of electricity by Metropolitan Electricity Authority (MEA) frequently exceeds the needs of households and factories due to the fact that the voltage has to be enough to send electricity to users who are located further at the end of the voltage grid lines. Most electrical appliances are designed to perform at optimum voltage of 220 Volt. The voltage optimization system controls the incoming voltage to fit the optimum voltage of electrical appliances which will reduce the overheating phenomenon and thus lengthen the lives of electrical appliances. It can save 8-14% of total energy being consumed and potentially reduce CO2 emission. This analysis system can be used for industries in the range of small to large companies. From the development of remote monitoring using a control via internet or 3G/4LTE the voltage optimization system showed practical power saving results of the reduced power usage and lengthen the lives of electrical appliances; that leads to reduction of emerging electricity resource eradication of natural resources increase the chance of marketing competition and energy sustainable

This research aimed to study the design and development to assist in bringing the car seat into the production process and the risk assessment approach to ergonomics to suit operator. Emphasizing the importance of work and trying to create design tools. Organize work appropriately in accordance with the competency and performance of each individual. Using the principles of biomechanics analysis applied in the analysis along with an assessment of the risks by taking into consideration upon 3 factors. 1. The level of severity. 2. The level of frequency.3. Safety measures at the different parts of the body due to which the body must be borne from the outside and in the work. By bringing knowledge of mechanics the proportion of the body anatomy and physiology is able to create the relationship in a model way of Ergonomics which occurs according to the gesture. The use of tools lifting heavy parts and labor pull push and press researchers found in the process of lifting car seat weighs 14.5 kg dimensions width 45 cm length 55 cm and 100 cm in height is the distance of the car seat to shelve. Assembly point distance of 200 cm research has fixed this issue by adjusting the distance of the car seat and shelves by only 50 cm distance can be reduced down to 150 cm and adjust the position of the lifting cushion to reduce twisting torso while assess the biomechanics model of the behavior of all employee in improvement on quality both before and after work station.

The research objective is to utilize the waste water at 12ºC to 20ºC in exchange with the process water at the temperature of 29ºC. After entering the heat exchanger the process water will have the reduced temperature of 19ºC and then will be delivered to the cooler so the temperature of the process water will further be reduced to 15ºC to involve in the production process. Consequently the cooler’s energy use is lower. Since the common coolers used in these days have problems about the clogged system caused by shrimp residue the cleanup of the system is difficult and the maintenance cost is high. With this problem the research and development of the new heat exchanger is carried out resulting to the Shell and Tube Heat Exchanger type with the angled lid and the waste water flow control pads allowing the water alternatingly running through the lower part and upper part of each pad. The process water will flow in the 6 sets of the stainless tubes with 2 mm. thickness ½ inch diameter and 6 meter length. The space between the set is 5 centimeters for exchanging heat with the waste water flowing outside the tubes. The study conclusion is that the new heat exchanger can reduce the temperature of the process water to 19ºC so it can save the electricity cost of the cooler for 886485 baht per year and make the cleanup easier without taking off the equipment parts thus lowering the maintenance cost as well.