จำนวน Repository ( 3447 )
เทคนิคการหลอมภาพมัลติสเป็คทรัลกับภาพแพนโครเมติคด้วยวิธีพีซีเอร่วมกับดิสครีตเว็บเล็ตอัลกอรึทึม
The data fusion is implement to take the survey data remotely from difference sources and have various looks to be combined to get a new agent. To get better quality of data we will present a method of fusion by wavelet transform with IHS Transformation method or PCA Transformation method. From the results showed that both IHS and PCA Transformation method able to be gotten high quality but the specifications of wave from damage is different.
การทำนายค่าความหนาของชิ้นงานพาราโบลิกที่เกิดจากความไม่แน่นอนของคุณสมบัติโลหะแผ่นด้วยสมการการถดถอย
This research aims to predict the thickness loss of parabolic forming by using hydromechanical deep drawing (HMD) process. The methodology used is the finite element method on the uncertainty of the mechanical properties for 1 mm thickness SPCC sheet metals. The properties consisted of three aspects: strength coefficient (K) strain hardening exponent (n-value) and plastic strain ratio for all three axis (r0 r45 and r90). Multiple simulations were completed by randomly selecting K n r0 r45 and r90 values following the distribution obtained from the uniaxial tensile test. The results would be analyzed by using the regression equation to create the equation to predict the thickness loss of the test pieces obtained from the formation process using the K n r0 r45 and r90 variables without the use of finite element method. This would results in a decrease in the simulation time. Based on 30 experiments of uniaxial tensile test it shows that the sheet metal properties are normally distributed. After that 60 cases of the five variables were randomly selected to simulate the formation by using the finite element method. Finally the results obtained from the aforementioned simulation is analyzed and generated into a regression equation. From the comparison between the value predicted from the regression equation and the result obtained from the formation process it can be seen that the regression equation can effectively predict the thickness loss when the five variables are under the same distribution properties. However the efficiency will decrease when the values of the five variables are beyond the distribution properties obtained from the experiment. In addition the uncertainty of mechanical properties of sheet metal in the simulation displays the chances of discovering test pieces with over 40% thickness loss. The simulation resulted in 5 damaged test pieces accounting for 8.33% of the total process.
การพยากรณ์กำลังรับแรงกระแทกของปอซโซลานคอนกรีตด้วยแบบจาลองฟัซซีลอจิก
This objective research to study the possibility of used properties pozzolan material for concrete cement the ternary blend by fly ash metakaolin and silica powder by replacement cement partially on the strength for Flexural and impact by replace Portland cement. Consideration of concrete by varying the ratio there are three values are (w/d) of 0.38 0.55 and 0.8 follow on standards ACI 211.1-91 and variable amounts of replacement cement some. The ternary blend of the fly ash metakaolin and silica powder of percentage 0 15 20 and 25 and by weight of cement. and the control specimens (w/b) without contain fly ash kaolin and silica powder the slump test in the range of 3-5 cm and the use super plasticizer to control the slump test of concrete. By casting specimens of cylindrical diameter 10x20 cm cube 10x10x10 cm and the beam size 10x10x35 cm after curing 28 days and test compressive tensile and flexural strength of concrete all specimens The results showed that The increase will help improve the quality of the concrete physical properties 35 percent up on the cement with clay 15 percent will have the strength to most of the compression is reduced. The increased of compressive and Tension strength as the percentage decrease when replacing cement with fly ash 35 percent up on replacing cement with clay to pull the maximum percentage of 10 bending when replacing cement with clay at a ratio of 10 percent is paid bending. The maximum value of fly ash the flexural increased replace cement in the ratio of 50 per cent are increased the concrete with the most and the last place of cement. As a result of the porosity of the concrete with lower amounts of tightness concrete has increased. Fuzzy logic model is presented for predicting the strength for Flexural and impact by replace Portland cement. The result of the study from experimental case the graph of membership function are present (low medium and high). The results showed that the model Fuzzy Logic. Can be used fuzzy logics to predict as well
The development of contemporary packaging. for order to increase increasing of remaining agricultural community. A case study of community enterprise applications, Amphoe Doem Bang Nang Buat , Suphanburi
The preparation of this project is to study the development of contemporary packaging to increase. Sold its remaining output from the agricultural community. A case study of community enterprise products processing. District Doem Bang Nang Buat district. Suphanburi to design and develop a new form of packaging. Technically packaging designAccording to a study by the packaging. Can be divided into two categories : The study design packaging. Can be divided into two categories found. 1. Structural Packaging The format of the package can be purchased on the market. Based on the usage right. To comply with the reduced cost is not very high but can work well. The packaging is a rectangular shape that is easy to deploy overlap. Make no space to display the product for distribution. The packaging of the processed banana products including banana and four rolls of dried banana banana banana chips and stir to choose the material used is aluminum foil bags with zip lock. Has the ability to prevent the protection of gas permeability gas oil and light perfectly. Therefore to protect and preserve the product contained within life. Packaging of carved bamboo shoots. Choose materials that will be used as a glass bottle. Physical properties clean and safe. High heat resistance Last for long After use can be cleaned and recycled into new packaging. Packaging of dried Roselle. Material selection is a clear plastic bag. Made from polyethylene Paulinus ethylene (PE) low density polyethylene (LDPE) and outer structure used to be the box art paper (Art Paper) paper made from chemical pulp. (Pulp manufactured using chemicals) and a smooth surface on one side. The glaze is shiny gloss Or the time A white paper Print images with high detail. The images came out sharp and beautiful. And packaging of sugar cane The material is selected to handle plastic canister with a lid that can be used inside the body. And a belt outer material is coated paper (Art Paper) boxes and packaging units. (Tray forming a rectangle) to select a paper material coated PET plastic that is resistant to moisture and grease. The printing system is offset (Off Set Printing) Printing System is the most commonly used around the world today. Because the prints are streamlined in the artwork. Printing is hassle-free printing multi-color or four-color images with exquisite beauty so much so type in the number. The price will be even lower. 2. Graphic Packaging It is the concept The format used bright colors beautifully. Notably the main color is green. Yellow represents the yield from agriculture. And colors from the color of the underlying agricultural production such as Roselle drying. Use of hibiscus pink and purple. Yellow or brown tones Instead the color of molasses sugar cane used to make patternsillustrations etc. are used as the main characteristics of photo-realistic. The background is a graphic image editor with the content. The story of a product/ product And showcase The identity of the group / community The audience wants to highlight agricultural products. Awards / Portfolio Contest and history/ origin of the Community Enterprise ripe bananas privatization Gold Group has detailed information on the various packaging-related products as required by law. To build confidence the more buyers. The characters used to write a simple and contemporary look flick easily read. The findings Summary of satisfaction on the new packaging. 1. Structural Packaging Has satisfied most of the forms. The overall packaging Are appropriate to the product At the highest level with an average of 4.80 2. Design a graphic package. Most are satisfied with the package. Bright colors are the most beautiful with an average of 4.86
การใช้เถ้ากะลามะพร้าวเป็นมวลรวมน้าหนักเบาในคอนกรีตบล็อกเพื่อการประหยัดพลังงาน
The objectives of this research are to study the production step proper ratio physical properties mechanical properties thermal insulation and sound insulation efficiency of concrete blocks mixed with coconut shell ash. The ratios of concrete block mixed with coconut shell ash include Portland cement type1: quarry dust: coconut shellash which equal to 1: 6.8: 0.2 1: 6.7: 0.3 1: 6.6: 0.4 1: 6.5: 0.5 and 1: 6.4: 0.6 by weight. Water per cement ratio are 0.6 by weight. The concrete block samples were casted by the general production as same as the ordinary concrete blocks and were tested follow TIS.58. From the results the best amount of coconut shell ash which put into concrete block is 1: 6.7: 0.3 of ratio. The proper ratios of coconut shell ash can decrease the density or weight and increase the thermal insulation and sound insulation efficiency of concrete blocks. However the high amounts of coconut shell ash effect to decrease the mechanical properties concrete blocks that are lower than TIS.58 standard.