The objective of this study was to investigate mechanical properties namely hardness of cemented tungsten carbide workpieces which were the mixture of 75 wt% tungsten carbide (WC) and 8 wt% -10 wt% cobalt (Co) as the binder . Other composites used included 0.5 wt% tantalum carbide (Tac) 14 wt% - 17 wt% titanium carbide (TiC) and 0.5 wt% - 1 wt% niobium carbide (NbC). The workpieces were then formed and sintered at 1450 °C. After the forming and sintering processes were completed the workpieces with different composites were obtained. The results showed that there were the differences in green density and hardness between recycled tungsten carbide powder and commercial tungsten carbide powder workpieces. Different particle characteristics and chemical components of tungsten carbide powder resulted in poor flow between the particles affecting density and hardness. Besides the compression of the metal powder before sintering could reduce the porosity because low porosity led to less shrinkage during sintering as shrinkage during sintering varies with the workpiece density after forming

This research aims to study the achievement evaluation of CPD program for accountants as required the Department of Business Development. The data were collected from a sample of 200 accountants in Bangkok area who registered with the Federation of Accounting Professions using questionnaire and individual interview. The statistics used for data analysis were Percentage Mean and Standard Deviation. The research found that the respondents were mostly female half of them were 31-40 years old and over 20 years of working experiences and completed a bachelors degree in accounting mostly married status and average salary was 20001-30000 baht per month thus higher than the minimum standard (15000 baht per month). The respondents was rated to be most appropriate as a whole including Lecturer Training Method and Training Curriculum (4.28 points average). In addition the achievement was at a high level (3.84 points average). The curriculum was utilized at the moderate level (3.33 points average). Finally the knowledge utilization was utilized namely in practice 79.50 percent the knowledge transfer to the colleagues 11 percent and the others 5.00 percent and unutilized 4.50 percent.

This research aims to 1) To analyze the situation of logistics and supply chain of healthy ready to eat meals that sold via online. 2) To study a framework of logistics and supply chain development in value added healthy ready meals that sold via online. 3) To practically benefit in making money from online business in the future which Thailand is entering the digital society according to the policy of Thailand 4.0. The researcher has a desire that this study will contribute to supporting the use of digital technology in business for creating alternatives decisions and system management together with the development of the product category. Hence this enables building long-term competitive advantage for entrepreneurs and reduces the complexity from the use of digital technology which plays a role in in Thailands infrastructure and logistics and supply chain management. In this qualitative research the study sample includes seven full-time or parttime entrepreneurs selling healthy ready meals that sold via online in Bangkok and vicinities. Data collection is conducted through interviews. The study found that the locations of six online healthy ready meals sellers are in Bangkok and one in Sumutprakarn. Four sellers provide delivery service in Bangkok and vicinities and three only in Bangkok. Six sellers provide food ordering channel via Line Application five via Facebook three via phone call two via Instagram and one via a specific food ordering application. Three sellers have more than 21 menus while two other sellers have 8-14 and 15-21 menus. There is no seller whose menus are less than 7. Most of the payment methods which six sellers provide are through bank transfer two sellers by cash and two sellers by credit/debit cards respectively. This research can be concluded based on the objectives of this research as follows. 1) Situation of popular online health products. Health-conscious consumers are becoming more interested in food consumption. The suitable calorie intakes are calculated each day and non-toxic ingredients and safe cooking methods are used. It is found that food delivered directly to consumers must have the appropriate supply chain with logistics activity management in order to be consistent with product category and consumers who are of working age that have no time to cook or eat at a restaurant. Some people think it is impossible to cook as their work is too busy. Therefore they decide to order food online for convenience while they can still take care of health. 2) In studying the framework it is important to pay attention to raw materials coordinating with suppliers of raw material method and workspace of the cook delivery to customers customer relationship management and 3) Practical benefits in making money from online business in the future which Thailand is entering the digital society according to the policy of Thailand 4.0. Therefore consumer behavior has changed and it is possible to use technology that is the driving force of the food business the technological development along with logistics management and supply chain management in quality preservation cooking of ingredients transportation and after-sales service. The use of technology can shorten the supply chain because the manufacturer can directly deal with the customer. It can solve the problem or improve the ability of the business directly which will add value and enhance competitiveness. As a result the business will be growing and competitive in the long run. Suggestions for online food entrepreneurs are the risk of miscommunication and careless transportation that ignores customer details which can cause loss of customers despite not the food quality. Therefore entrepreneurs need to manage supply chain quality thoroughly. Moreover the online healthy food entrepreneurs should regularly monitor the quality of raw materials to build credibility so that customers will make the purchase decision once they know the product and then repeat purchase in the future.

The study of silver metal used in the non-plated jewelry industry was found to be dull or black but it was a basic feature of silver. To react with air easily in Thailand. The hot weather must be maintained regularly. The concept that we can study the development of silver metal with resistance to tarnish to slow down will have a positive effect on the jewelry industry. The team has developed a concept to bring other elements to meet the potential. The element used here is palladium (Pd) because the palladium is in the same group as the nickel and platinum groups in the periodic table. It is a metal (Nobel Metal) which is very durable corrosion. Usually white is natural and when used to polish the skin is glistening and in most cases in the jewelry industry is often used as part of the alloy such as making the natural gold color close to the platinum. The authors performed the experiments by introducing silver metal with palladium in an appropriate ratio and tested it with artificial stone. And save the record. It is divided into 4 periods of 5-20 days in normal temperature. The results of the study showed that 92.5% copper 6.8% and 0.7% palladium had a shade of L value of 59% over 20 days. It can be used to produce silver jewelry at a lower tarnished rate. In the jewelry industry

The aims of research were to study (1) a basic formula of rice noodles’ production. (2) the production of jobs tears flour and rice flour in rice noodles’ production. (3) the quantities of using jobs tears substituting for rice flour in noodles’ production. And (4) consumers’ acceptance of rice noodles product from jobs tears flour. The results showed that the first formula was chosen to be the basic formula. This formulation containing 10% rice flour 3% tapioca flour 26% water and 0.5% vegetable oil. The results of physical qualification between jobs tears flour and rice flour showed that the lightness (L) of jobs tears flour lower than the lightness (L) of rice flour (p≤0.05). And the value (a*) showed redness and the value (b*) showed yellowness higher than rice flour (p≤0.05). Humidity and water activity (aw) of general rice flour is not different from jobs tears flour considered by sensory test with ratio of jobs tears flour to rice flour of 20:80. This ratio got more preference the ratio 40:60 and 60:40 (p≤0.05). According to the consumer test (100 consumers) the Noodles by Partially Substituting Rice Flour with Jobs tears Flour was accepted as the novel and delicious product by 98% consumers. Moreover and 92% of consumers decided to buy the product containing 250 g in the plastic bag with the price of 25 Baht.