จำนวน Repository ( 1574 )
คุณลักษณะของคอนดัคเตอร์ในสนามจำนวนดีกรีสี่สำหรับจำนวนเฉพาะที่ไม่แตกกิ่ง
The conductor of an order is the largest ideal of the ring of integers of a field which is contained in the order. In this paper we characterize conductors in quartic number fields whose norm is a power of unramified prime.
การพัฒนาและออกแบบผลิตภัณฑ์กระเป๋าเก็บความเย็นจากแกลบและส่วนเหลือทิ้ง ในกระบวนการแปรรูปข้าวไรท์เบอรี่ และข้าวสีนิล
The Development and Design Cold Bag’s Product from Rice Husk and Waste of Rice Berry and Black Rice Production. It is intended to bring rice husk in process to produce food in order to take advantage of the product design process and create a cooling pouch Master product for everyday use such as treating the refrigerant of a vaccine or medical medicine. Maintaining the temperature of breast milk is a source of design and development of refrigeration bag products. There are research methods starting from the study of the design of experiments. To be a guide to the implementation of the rice husk to bring out the cold storage plate and bring out the design of the product. The result of the master experiment with cold storage plates. Found that Paddy Husk has the right qualities due to the Density= 0.76 g./cm3 Moisture Absorption= 6.25% cracking resistance Modulus of Rupture: MOR= 7.690 MPa. and Modulus of Elasticity: MOE= 1064.77 MPa. which has a qualified property than Paddy husk from black rice. If you touch the water for a long time it has to absorb water and the inflation inside the skin which is inferior to the rice husk properties. The researchers put the extruded sheets from rice to a cold storage material in the pocket designed with a modern shape a material made of nylon fabric. On-off with zipper there is a strap and a box for inserting the pocket side. The bag has a compression plate from the surface of the 5 side rice to help protect the cold and reduce the use of synthetic chemicals which is environmental friendly.
คุณลักษณะของผู้ประกอบการที่ประสบความสำเร็จ : กรณีศึกษาโรงเรียนสอนตัดเสื้อไพลิน
The purposes of this research were to explore 1) the characteristics of successful entrepreneur: case study of Pailin Couture and 2) the factors affecting of self- employed of students who study major in fashion clothing and textiles design faculty of home economics technology at RMUTP. Using mixed method research and divide the data into 2 parts: 1) collected data from the entrepreneur as a key informant by using structure interviews and analyze data by content analysis and 2) collected data from students whose are selected using purposive sampling technique using questionnaire and data was analyzed using frequency percentage mean and standard deviation. The finding was concluded as follows: Characteristics of successful entrepreneur consist of: 1) inspiration from clearly know themselves and led to career 2) have experience or preparation about finding a place to study work-in-study finding a team coaching and channel expansion 3) working approached were to maintain harmony conflict reduction and do not use the mood to work 4) problem solving solution was to find the cause of the problem and consciousness in solving problems 5) core concept in occupational was takes a shorter time to learn but take it to career quickly and have creative development 6) category of products or services was variety of clothing styles 7) recruitment must choose who had the knowledge and ability in work and 8) recommendations for the couture entrepreneur should have knowledge and skills such as product planning team building marketing plan and target group of business. The factors affecting of self-employed of students found that: expectations of parents after graduation was self-employed. Individual factors toward to self-employed were love to work independent interesting in self-employment and love to learn more. Job factors toward to highly self-employed were individual challenge extremely in use ability and interpersonal relation.
การตรวจสอบความเป็นสารปอซโซลานของเถ้าแกลบผสมเถ้าลอยโดยวิธีการบ่มเร่งกำลัง
This paper presents the investigation of pozzolanic reaction of rice husk ash blended with fly ash by accelerated curing. The compressive strength of cement paste containing rice husk ash blended with fly ash at 30% by weight of cementitious material (PBA-30) was studied. The temperature curing at 60 70 and 80oC were parameter of test in order to determine the suitable temperature and curing period on strength development of cement paste. The ratio of rice husk ash to fly ash was 1:1 by weight and the ratio of water-to-binder (w/b) was 0.38. The test results found that the accelerated curing of PBA-30 at temperature of 60oC for 5 10 and 45 hours had comparable compressive strength to PBA-30 with normal curing at the age of 37 and 28 days respectively. As a result of accelerated curing the calcium silicate (CS) which effect on strength development of cement paste was increased. According to the X-ray diffraction analysis the calcium silicate content in cement paste was comparable. Therefore it can be use accelerated curing to investigate the poozolanic reaction of rice husk ash blended with fly ash within 48 hours.