The purpose of this study was to evaluate the subject of Statistical Analysis in Business(02-311-133) in the curriculum of the Faculty of Science and Technology Rajamangala University of Technology Phra Nakhon. The following aspects were studied : the appropriate objective outline content of the curriculum methods of teaching and learning instructors students teaching aids materials classrooms evaluations of the curriculum and achievements of the students who had studied this subject. The sampling group of this study was comprised of 6 instructors who taught a course in Statistical Analysis in Business 324 students who had studied the course and 76 students who had graduated. The research tools were a questionnaire and an interview. The statistics used in data analysis were percentage arithmetic mean (X) and standard deviation (SD.). The Results ofthe study were that 33.33 % of the instructors had experiences in teaching more than 10 years but had conducted fewer researches; the objective outline and content of the curriculum were appropriate and applicable; the teaching aids did not work properly because of no good maintenance; in teaching and learning no activities and fewer group works were assigned to students to practice; the evaluations of the curriculum should not have various forms; there were less of students achievements in synthesizing problems and applying their knowledge to solve problems.

The Purposes of1bis Research were to study of Bachelor of Science Programs in Applied Chemistry and in related other areas in Thailand s Higher Educational Institutions. The sample consisted of 27 Programs of Bachelor ofScience Programs in chemistry Applied Chemistry and Industrial chemistry in Thailand s Higher Educational Institutions. Instruments used for collecting data were Curriculum Data Sheets. The data were analyzed by using SPSS for window. The statistics used were frequency percentage and mean. The results were as follows: 1. Most of the Bachelor of Science programs are chemistry. The others are Applied Chemistry and Industrial chemistry respectively. 2. The Total Course Credits of Bachelor of Science Programs were 137.12 Credits including General Education Courses (34.46 credits) Specific Courses (96.50 credits) and free elective courses (6.42 credits). 3. The Total Course Credits of the Bachelor of Science Programs before 2005 were 140.67 credits including General Education Courses (35.28 credits) specific courses (99.22 credits) and free elective courses (6.61 credits). 4. The Total Course Credits of the Bachelor of Science Programs s after 2005 were 129.13 credits including General education courses (32.63 credits) specific courses (90.38 credits) and free elective courses (8.76 credits). 5. The Total Course Credits of Bachelor of Science Programs in Applied Chemistry were . 130.67 credit including General education courses (37.67 credits) specific courses (85.00 credits) and free elective courses (8.00 credits). 6. The minors of Bachelor of Science programs in Applied Chemistry consisted of Industrial Chemistry and Management Environmental Chemistry Material Chemistry Natural Products Chemistry Polymer Chemistry Applied Chemistry for Industry Chemistry Education and Medicinal Biochemistry.

The purpose of this research were to develop the efficiency of Computer Assisted Instruction (CAI) in Bio – Organic chemistry and to compare the leaming achievement in Bio – Organic chemistry the sample consisted of 35 and 39 student in Department of Food and Nutrition Faculty of Home Economic Technology Ragamangala University of Technology Phra Nokhon 2008 academic year. Research instrument were the CAI and Achievement test in Bio – Organic Chemistry in Carbohydrate. The achievement test comprised 40 item. The data analyzed by statistical computer program. And used mean percentage and compare mean by t-test

This research studied the factors that affect the efficiency of phosphate reduction in the wastewater of the washing process with CaCO3 and CaO produced from eggshell and mussel shell. The study found that the optimum condition for adsorption when using CaCO3 from eggshell is to adjust the pH to be equal to 10 take 15 minutes to absorb and add 1 gram of sorbent which can reduce the phosphate content by 25 percent and when changing the adsorbent to CaO the optimum condition for phosphate removal is to adjust the pH to 7 take 15 minutes to absorb and add 1 gram of adsorbent which can reduce the phosphate content by 24 percent. The optimum conditions for adsorption when using CaCO3 from mussel shell were to adjust the pH to 10 take 45 minutes to absorb and add 1 gram of sorbent which can reduce the phosphate content by 25 percent and when changing adsorbents to CaO the optimum condition for phosphate removal is to adjust the pH to 10 take 15 minutes to absorb and add 3 grams of adsorbents which can reduce the phosphate content by 24 percent. In addition when studying the adsorption of impurities in the wastewater such as conductivity turbidity COD and BOD it is found that the optimum reduction conditions can reduce the impurities of the parameters that mentioned above were 19.32 2.60 54.77 and 16.67 percent respectively. CaCO3 and CaO produced from eggshell and mussel shell can be used to absorb impurities in wastewater before releasing into natural water sources.

The purpose of this study is to produce the soil improvement materials from food waste and water hyacinth by using a dehydration process. The experiments were divided into two parts : 1) the study of the optimum temperature and time for converting food waste and water hyacinths to soil improvement materials by determining the temperatures of 100 °C 150 °C and 200°C in the periods of 1 hour 2 hours and 3 hours respectively 2) the study of nutrient content in the materials before and after mixing into the soil for 5 days. The soil used in the experiment was sampled from Sai Ma Subdistrict Nonthaburi Province. The parameters used to evaluate the ability to improve the soil quality were soil moisture pH electro conductivity total nitrogen total phosphorus total potassium and organic matter. The results showed that the optimum temperature for drying the food waste was 150°C for 2 hours and the optimum temperature for drying the water hyacinth was 200°C for 3 hours. When the materials were mixed into soil it found that the soil drainage was improved. Mixing the materials into soil could increase the pH value from 5.2 to 5.4 and increase the electrical conductivity from 0.72 mS/cm to 14.78 mS/cm. Besides the plant nutrients including Nitrogen phosphorus and potassium also increased after adding soil improvement materials.