In this study 14 bacterial strains isolated from gastrointestinal tract of black tiger shrimp (Penaeus monodon) was investigated for their probiotic potential. The results showed that 6 strains namely S1 S3 S6 S7 T4 and T5 were able to degrade 3 nutrient substances including protein starch and lipid among which S3 S7 and S2 were the best tested nutrient-degrading bacteria respectively. Six bacterial strains were unable to lyse red blood cells including S2 S3 T0 T1 T2 and T3. S2 strain showed the strongest antibacterial activity against shrimp pathogenic Vibrio harveyi following an agar overlay technique. Based on environmental tolerance tests S2 and T0 strains grew well under wide ranges of environmental conditions e.g. sodium chloride concentration (0-8%) pH (6-10) and temperature (25-37C). As a consequence S2 strain had the most probiotic potential for shrimp culture owing to no hemolysis of red blood cells inhibition of V. harveyi growth protein and lipid degrading ability and high environmental tolerance for shrimp cultivation. The strain was identified as Micrococcus sp. S2. However additional study focused on immune response nutrient digestibility and growth promotion of the strain should be further performed in marine shrimp.

This research analyzes the parameters affecting the penetrating resistance of shells on the armor surface by the finite element method. In this study the results were compared with real bulletproof armor firing tests and finite element simulations. modeling of bulletproof armor using Solid Works program. Creating and simulating armor firing pattern using ANSYS Explicit Dynamic program. damage test is based on National Institute of Justice level 3 standards with material of the ammunition is 7.62 mm tungsten carbide (WC) and speed 847 + 9.1m/s. there are two types of bulletproof armor used in this simulation 1. SKD11 2. Aluminum AL7075. The simulations is into 1 category Simulation of stacked armor plates. The sizes of the armor plates are 6 8 and 10 mm and the angles of firing of bulletproof armor are 0 30 and 45 degrees. result of this simulation armor thickness and firing angle are factors of penetration resistance. when the angle of the projectile is tilted it will cause the projectile to deflect reducing the frictional contact from the impact.

The dyeing industry both of business size and household size where the remaining water from the dyeing process is dumped into pipes and flows into natural water sources causing sewage problems. Therefore a column type wastewater treatment system has been developed by using a filtration system along with an adsorption system. The materials used to treat the wastewater from dyeing are gravel sand charcoal from wood and activated carbon from coconut shell. The study was conducted on the synthesis activated carbon from coconut shell using for color and molecules adsorption. The amount of activated carbon from coconut shell was varied at 200 400 600 and 800 g applying with filter media and other adsorption materials taking 1 hour to treat the wastewater from dyeing. The parameter using to measure water quality consisted of color value pH suspended solids conductivity turbidity value COD and TKN to indicate the water quality before and after treatment evaluating the efficiency of the wastewater treatment system. The best ratio that can treat the color is the formula containing 800 g of coconut shell activated carbon. It was able to treat the color equal to 5.94 SU or 99.43 percent compared to the wastewater before treatment.

This research was to study the current condition of Sunthorn Phus Nirat literature. especially Nirat Mueang Phet in Khlong Krachaeng Subdistrict Mueang District Phetchaburi Province to study the interest of Thai tourists traveling to Khlong Krachaeng Subdistrict Mueang District Phetchaburi Province and to study the guidelines for the use of literature for the benefit of tourism by asking from village scholars community leaders and people in Khlong Krachaeng Sub-District Mueang District Phetchaburi Province. This research is a mixed research which is a quantitative research and qualitative research. The period of data collection is from October 2021 - September 2022 with the population traveling to travel within the Khlong Krachaeng community. Muang District Phetchaburi Province and use the online questionnaire that passed the confidence test. is a tool for collecting 400 sets of data then the questionnaires were analyzed by the Statistical Package for the Social Sciences package (SPSS). The results showed that Demographic data of the respondents found that most of the respondents were female aged 20-30 years single status bachelors degree. General Contractor The average monthly income is 10001 - 15000 baht. Most of them analyze the interest in tourism in Khlong Krachaeng Subdistrict Mueang District Phetchaburi Province emphasizing 1) architecture and ancient sites in Khlong Krachaeng community 2) various palaces such as Ban Puen Palace Phra Nakhon Khiri ( Khao Wang) 3) Lifestyle of people in Khlong Krachaeng community 4) Traditions and culture in Khlong Krachaeng community 5) Natural beauty such as Tham Khao Luang Tham Chan Ton 6) Source of sweets and souvenirs in the community Khlong Krachaeng 7) Source of local products and souvenirs in Khlong Krachaeng community 8) Various art works such as wood carvings stucco work murals and was most interested in the promotion and conservation of Nirat Muang Phet literature in Khlong Krachaeng Subdistrict Mueang District Phetchaburi Province. To provide knowledge in the field of Nirat Muang Phet literature It will increase the interest of tourists who come to travel in the community more. And there should be a public relations event about Nirat Muang Phet literature on important days within the community in order to use Nirat Mueang Phet in the development of cultural tourism in Khlong Krachaeng Sub-District Mueang District Phetchaburi Province.

This research aimed to study the causes of changes in water quality and compare the water quality in Khlong Bang Khen Mai when the seasons and sampling points are different. These factors may cause a change in water quality. A total 50 of water samples were collected from 5 sampling points each point approximately 300 meters apart for a total distance of 1.5 kilometers. They cover three seasons such as winter (October 2020 to February 2021) summer (March to May 2021) and rainy (June and July 2021). Three parameters of this research which consist of both the chemical and physical quality parameters are pH Dissolved Oxygen (DO) and Electrical Conductivity (EC). The result shows that the average pH has ranged from 7.10 - 7.74 the dissolved oxygen (DO) was in 1.80 - 2.84 mg/L and the electrical conductivity (EC) was in the range of 327 - 517 μs/cm. A two-way analysis of variance is a statistical method used to compare the water quality in Khlong Bang Khen Mai. The results indicate that the test differences between seasons affected the change in water quality in all parameters with a statistically significant level of 0.05. Afterward the comparison of multiple comparisons by Scheffes method showed that the pH and dissolved oxygen (DO) in the rainy season were significantly different from winter and summer at the level of 0.05. For the electrical conductivity (EC) there was significant differences between summer and winter at the 0.05 level.