จำนวน Repository ( 123 )
การตรึงอะโซโตแบคเตอร์แบคทีเรียตรึงไนโตรเจนในอากาศด้วยวัสดุธรรมชาติและผลต่อการเจริญเติบโตของผักกวางตุ้งในดิน
Nitrogen is an essential nutrient for plant growth. When the plants have been grown for a long-term effect to decreased nitrogen in soil and insufficiency of the plant growth. One biological method for increasing the nitrogen content in soil is utilize of free nitrogen-fixing bacteria Azotobacter. Therefore the objective of this research was to search natural material suitable for Azotobacter fixation. The 10 natural materials were observed physical structure and investigated the ability of natural materials for Azotobacter fixation. The results showed that water hyacinth and bagasse stalks were fixed the Azotobacter of 2.43x108 and 1.94 x108 CFU per gram of each natural material respectively. After that the selected fixed Azotobacter of water hyacinth and bagasse stalks were studied the growth of Brassica Chinensis. This experiment was designed to 4 treatments. The first treatment was mixed of water hyacinth stalks and the Azotobacter. Second treatment was mixed of bagasse stalks and the Azotobacter. The third treatment was the Azotobacter only. The last treatment was soil only. The results indicated that the average of plant growth include height leaf number root length fresh weight and dry weight of the mixed of water hyacinth stalks and the Azotobacter had significantly higher growth rates than other treatments. The total nitrogen was also increased 1.4 fold in the soil. All results suggest that the water hyacinth stalk is alternative for the fixation of the free nitrogen-fixing bacteria Azotobacter as induce nitrogen in the soil and plant growth promotion.
ลักษณะวัสดุผสมซีเมนต์เพสต์กับเถ้าเส้นใยผลตาลโตนดใส่ท่อนาโนคาร์บอนผนังชั้นเดียวชนิดสั้นผ่านการปรับปรุงผิวภายนอกด้วยกระบวนการชุบผิวโดยไม่ใช้ไฟฟ้า
This research was resulted of the characterization of cement paste composites (CPC) blended with palmyra fiber ash and surface-treated on short SWNT prepared by an electroless plating process. The cement paste composites included cement 270 meshes of palmyra fiber ash and short SWNT. The design of experiment was divided into 3 conditions namely uncuring 28 and 56 days in distilled water. The properties of CPC were carried out in chemical composition physical mechanical mineral phase microstructure and statistical analysis. It was found that in the chemical compositions an amount of silicon dioxide aluminium oxide and ferric oxide were 51.53% which was rated in class C. The bulk densities of CPC series between PFA10 (C) and PFA5AgSWNT0.01 (G) cured 56-day distilled water were an increased 38%. Then the highest specific electrical resistivity of CPC series PFA5OSWNT0.03 (F) cured 56-day distilled water was 1.14±0.31 mega-ohm.mm. The highest compressive strength of CPC series PFA5AgSWNT0.01 (G) cured at 28-day distilled water was 25.45±2.00 MPa compared with the OPC (A) was an increased 5%. Which the bulk densities of CPC series between PFA10 (C) and PFA5AgSWNT0.01 (G) were statistical analyzed the mostly cured at significant difference α = 0.05. In addition CPC series PFA5AgSWNT0.01 (G) mainly contained calcite portlandite quartz dolomite and ettringite were caused increasing compressive strength. And the SEM microphotograph were also displayed the calcium silicate hydrate portlandite and ettringite. Consequently the PFA was used to ability pozzolanic material using for lightweight concrete of CPC.
การศึกษาและพัฒนาบูธจำหน่ายสินค้าโอทอปเคลื่อนที่แบบถอดประกอบ สะท้อนอัตลักษณ์ศิลปะล้านนาจากวัสดุธรรมชาติในท้องถิ่นเพื่อเพิ่มมูลค่าทางเศรษฐกิจให้กับผลิตภัณฑ์ในชุมชน : กรณีศึกษา ศูนย์ภูฟ้าพัฒนา จังหวัดน่าน
This research aims to improve the booth model of OTOP products from Phu Fah Pattana Center Nan Province. To increase marketing channels by distributing products to various locations in order to increase sales to community products. The design must take into account the convenience of rapid assembly and dismantling for a limited time. The characteristics of the booth must be disassembled interesting in looks that reflect the identity of Lanna art. There is a beautiful strong structure to support the weight of the product. The size and proportion are suitable for the usage habits of consumers. Which will help promote products in the community that have higher sales stronger communities. Able to divide the product market in the country and can create marketing channels to other countries. It is a good result for the villagers in the community that will have the guarantee of self-sufficiency and sustainably sufficient lives. From the analysis of the Lanna Wisdom Identity Model there are 4 types of concepts which are The concept of the components of the house GalaeThe concept from the barn Concept of the components of the house Kwan Concept of triangular pattern woven grass. After that it was developed to the stage to interpret the meaning of space in form of booth. And then lead to the design of 4 booths. And conducted a questionnaire to find satisfaction with each type of booths that responded to various usability benefits including satisfaction with the appearance and usage characteristics that responded to the behavior of Most users. Conclusion Booths from the concept of Lanna house components called galae have the highest percentage of satisfaction in 3 aspects which are Percentage of satisfaction with the layout of the booth Percentage satisfaction with workpiece assembly and disassembling storage and transportation Percentage of satisfaction with the perception of Lanna identity. For the satisfaction with the size the proportion of use and the convenience of use the booth from the concept of the components of the house Kwan with the highest rate of percentage satisfaction.
การออกแบบและผลิตเสื้อสตรีโดยกระบวนการแปลงวัสดุเหลือใช้เป็นผลิตภัณฑ์ใหม่
Nowadays fashion industry affects the environment around the world and from that situation many fashion designers pay attention to the process of designing by upcycling. Researchers are interested to study the knowledge of fashion up cycling for creating my own up cycling project including 5 looks of women’s wear by using the upcycling method combining with quilting techniques. In addition then the 5 up cycling women- clothes are evaluated by 50 assessors about fashionable design and wearable design for forecasting the potential of making clothes by using up cycling methods for wearing in the real life. From the result of the knowledge’ s fashion up cycling and the evaluation there is possibility of making different designs from the old clothes into the new clothes and many people think the upcycling clothes can be wearable and fashionable.
การประยุกต์กระบวนการการขึ้นรูปด้วยเทคนิคการขึ้นรูปยางผลิตต้นแบบภาชนะด้วยวัสดุธรรมชาติ
Most of the current containers that we put food are made of plastic or foam boxes. After the use is finished the container becomes rubbish and will greatly affect the environment. Due to slow degradation Plus informal disposal And higher consumption The use of natural products is in great demand. Because it is beautiful and natural-looking pleasing to consumers Therefore the basic processes forming patterns were studied by rubber product molding techniques. Determine the material to be molded into the sample container. Design and build a small molding set. Provide binders used for the stabilization of natural materials. Experiment for forming and the Conclusion of the experiment From the results of operations and experiments it was found that the study of the prototype extrusion set Using a rubber molding technique Can be applied by various elements The process of rubber molding can be used in the development of natural container molding and the process can produce prototype containers from natural materials. Under the suitable size of the mold the area of the mold is smaller than the mold plate area of the machine or the size of the mold area the area of no more than 60-70% of the mold holder plate.