The purposes of the research were to design and develop a computer assisted instruction package with tutorial through e-learning on computer technology curriculum and to find out efficiency effectiveness and learners’ satisfaction towards the package. The research tools are 1) the Computer Instruction Package on Database Management System Subject 2) Achievement evaluations 3) Quality assessment and evaluation form for multimedia software and 4) Questionnaire of learners’ satisfaction. The research results reveals that the efficiency of the Computer Instruction Package was at 82.50/82.56 corresponding with 80/80 criteria. The analysis of pre-test and post-test scores finds that the effectiveness after the process (Epost) was at 82.56 which was higher than one tested before the process (Epre) which was at 14.62. Therefore the Computer Instruction Package on Program Design and Development could increase the students learning effectiveness up to 67.94 corresponding with 60 criteria. The Mean of satisfaction of the sampling groups was rather at a high level (4.28). It could be concluded that the Computer Assisted Instruction Package with tutorial through e-learning on computer technology curriculum had the efficiency that could used for self study.

The purpose of this research was to develop new mixed fiber from waste cocoon and other plant fibers. It was found that waste cocoon has qualitative properties to produce new mixed fiber when mixed with five kinds of plant fibers namely cotton yarn linen yarn pineapple yarn ramie yarn and hemp yarn. The processes included boiling waste cocoon in wetting agent water and Sodium Carbonate for 30 minutes at 90 ºC and dehydrating it. After that short cocoon yarn was obtained. Then mix it with the five kinds of plant fibers with the ratio of 50:50 in carding at silk card and undergo mixing and spinning process. Qualitative test result of new mixed fiber from waste cocoon used as weft yarn and five kinds of plant fibers used as warp yarn in industrial weaving showed that fiber from waste cocoon mixed with hemp yarn has the best breaking strength of 194 CN/tex followed by waste cocoon mixed with ramie yarn of 149 CN/tex waste cocoon mixed with linen yarn of 146 CN/tex waste cocoon mixed with pineapple yarn of 145 CN/tex and waste cocoon mixed with cotton yarn of 143 CN/tex. Meanwhile fiber from waste cocoon mixed with heft yarn has the best mean elongation of 2.30 cm followed by waste cocoon mixed with cotton yarn of 2.32 cm waste cocoon mixed with ramie yarn of 2.77 cm waste cocoon mixed with linen yarn of 3.42 cm. and waste cocoon mixed with pineapple yarn of 3.43 cm. Thus the research results indicated that fiber from waste cocoon mixed with hemp yarn is good for producing home textile as it has the highest breaking strength while fiber from waste cocoon mixed with pineapple yarn is good for producing clothes.

This research was to develop the computer application program which was called CivilLabPro for civil engineering laboratory. It consists of analytical part and educational part. Both are designed to use database together and they can use either personal computer or internet system. The analytical part is composed of 15 soil mechanics laboratory and 16 materials testing laboratory that it was written by using visual basic language and it could report not only numerical formats but also graphical results. The results of calculation were stored with database system which wrote by using SQL language. The educational part comprises self study and self exam that it was written by using HTML language and SQL language. The effectiveness of this application was evaluated by questionnaire and opinion in items as follows: easiness of usability accuracy of results and rightness of subject matter. From the evaluated results found that most people are satisfied with this application and the results were accuracy. This evaluation was summarized that it was good standard and it was capable to use in electronic teaching and working.

The aim of this research is to paint silk fabric with batik technique using five natural dyes from margosa bark lac mango leaves marigold and otaheite gooseberry bark. The pre-mordant and after-mordant techniques were used in this work. Ten mordants Aluminum potassium sulphate Copper (II) sulphate Sodium dichromate Tannic acid Tartaric acid Tin (II) chloride and Calcium acetate-monohydrate were applied. The batik fabrics were characterized in color strength rubbing fastness washing fastness light fastness and stiffness. The result indicated that silk fabric painted with natural dye from margosa bark could use all 10 mordants to improve color strength and gave various shades of color. The silk fabric painted with natural dye from lac could not use all 10 mordants to improve color strength but it gave various shade. The silk fabric painted with natural dye from mango leaves marigold and otaheite gooseberry bark showed that almost 10 mordants gave higher color strength and various shade. The mordanting technique would give good fastness and reduce the stiffness of batik fabric.

This research aim to improve a combustion system of boiler within increase combustion efficiency and use all out of the energy. The large boilers were used in the industrial factories which consume a lot of energy for production. By oil and gas fuel will be increasing costs everyday cause many factories interested in energy saving with any method technical engineering specifically for production costs and environment effect decreasing. This researching was installed and program was invented in the industrial factory. This industry factory consumed cogeneration energy for fabric dying. The efficiency before installing the software is measured about 65.85 - 71.98% which heat in exhaust gas about 20% of overall energy is filled in the system. After installing heat loss in the system has been fallen until remain about 5 - 12% and efficiency of heat in system has been reached a peak of 80 - 85%.