จำนวน Repository ( 3447 )
แผ่นใยอัดจากเส้นใยต้นมันสำปะหลัง
This research aims to study the application of cassava fiber. The fibers are taken from cassava and pineapple Head that 3 ratios are used to all of fiber mixing. The fiberboard production use 130°C of temperature with 20 – 50 kg/sq.cm of compressive pressure with 10 minutes per piece of rate. Their fiberboards have 681 – 724 kg/cu.m of density and 7.1 – 7.6 % of moisture. Resulting the CF 05 ratio (cassava: urea is equal to 0.95:0.13) is suitable ratio which has good physical and mechanical properties.
Virtual learning environment in creative education
The article presents a study of virtual learning environment in creative education to develop creative thinking skills. The paper states concepts and principles of creative education creative thinking creative thinking process and learning theory for creative thinking. The virtual learning environment in creative education included arrangement of learning in asynchronous synchronous and collaborative condition which composed of knowledge environment media and tools environment friendly environment and individual environment. The arrangement was based on conceptual framework of creative education for the 21st century in order to develop creative thinking for lifelong learning.
Using execution plan for SQL tuning
Database system is a collection of information that can be easily accessed managed and updated. With the rapid expansion of the Internet database overload is increasing rapidly. Large amount of data complexity of information and needs for quick responses had caused critical problems of database access. One of the techniques to optimize effectiveness of query is to use SQL tuning. The improved SQL could speed up database access and save the resources of computer. This article introduces a tool called ‘execution plan for SQL tuning’. In addition an example is also provided to check the processing of SQL command.