One of important equipment in reforestation or tree planting is a pot for mulching tree saplings. Originally pots were made of clay but they were too strong. When the trees grow up the pots must be smashed in order to let the roots and the stems grow up. Plastic pots are a popular alternative to be potted tree saplings due to their longer usability flexibility keeping and easy cleaning. In addition they are light and easy to move or transport. Typical pots usually have holes at the bottom which make poor ventilation that caused the slow tree saplings growth. Pots with holes in the side let the air comfortably flow and the roots do not go to the bottom of the pot. When the pots are moved the tree sapling roots are not ragged this help reducing the mortality rate of tree saplings. To Construct and find out the efficiency of plastic pot injection molded with 7.7 cm. in size 8 cm. high 0.10 cm. thick and the weight of 20 grams in the specification form the work-piece can be injected. For Construction and finding out the efficiency of holes for putting the plastic pot injection molded with 41 cm. wide 51 cm.long0.20 cm. thick and the weight of 330 grams in the specification form every work piece can be injected. There are 18holes for putting the plastic pot and all 18 holes are in the same size. Asst. Prof. Prasong KanKaew

การวิจัยฉบับนี้ได้กล่าวถึงการลดระยะเวลาการทำแม่พิมพ์ยางซิลิโคนโดยเร่งความแข็งด้วยอุณหภูมิต่ำ เนื่องจากแม่พิมพ์ยางซิลิโคนใส สามารถเก็บรายละเอียดของชิ้นงานได้ดีและสามารถมองเห็นชิ้นงานด้านในได้แต่แม่พิมพ์ยางซิลิโคนใสใช้เวลาในการแข็งตัวนาน จึงได้ศึกษาและทำการทดลองนำเอาอุณหภูมิความเย็นเข้ามาช่วยในการเร่งการแข็งตัวของซิลิโคนใสโดกำหนดอุณหภูมิเป็น 3 อุณหภูมิ ประกอบด้วย 10 5 0 องศาเซลเซียล แต่อุณหภูมิแบ่งเป็น 3 ช่วงเวลา ประกอบด้วย 2 3 4 ชั่วโมง จึงทำการการทดลองขั้นต่อไป จากการทดลองโครงการลดระยะเวลาการทำแม่พิมพ์ยางซิลิโคนใสโดยเร่งความแข็งด้วยอุณหภูมิต่ำเพื่อหาอุณหภูมิและช่วงระยะเวลาที่เหมาะสมในการเร่งความแข็งของซิลิโคนใส พบว่าที่อุณหภูมิ 5 องศาเซลเซียล ช่วงระยะเวลา 3 ชั่วโมงมีค่าความแข็งใกล้เคียงกับมาตรฐานและมีความเหมาะสมที่สุด เนื่องจากผลการทดลองพบว่าอุณหภูมิและระยะเวลาที่เหมาะสมที่สุดนั้นสามารถลดระยะเวลาการแข็งตัวของซิลิโคนใสได้ 6 ชั่งโมงและมีประสิทธิภาพใกล้เคียงกับชิ้นงานมาตรฐาน

Over the past decade eye-tracking technology can help people all over the world access computers through systems that use gaze control. For people with disabilities this technology is a gateway to communication personal expression and inclusion in society. Eye-tracking technology advance has been transferred to the educational area and now the use of interacting with the multimedia materials and resources in the classroom. The objectives of this research are threefold. The first study presented the development of a low-cost eye-tracking device based on video-oculography. The second study examined various factors in which eye movements can be systematically measured to design appropriate of usability in computer-assisted instruction (CAI). The third study created and determine the efficiency of computer-assisted instruction interactive with eyes lesson on knowledge of ASEAN in elementary education for a student with disabled hand control. This research has looked at three design parameters of the dwell-time click alternative interactive button size and placement of the button which suitable for eye tracking interfaces. The evaluation carried out an experiment to compare performance with five students with a disability. Results showed that a combination of big buttons and short dwell-times are most suited for maximizing accuracy and ease of use. Furthermore the efficiency of computer-assisted instruction is 70.0/71.5 and the user’s satisfaction with CAI were at the high level ( =4.27 S.D. 0.79). Consequently eye tracking technology is a great tool to interaction in computer-assisted instruction for Thai students with a disability. x

The purposes of this research were : 1) study in business fresh flowers entrepreneurial community in Pak Khlong Talat Market Phra Nakhon district Bangkok metropolitan area 2) study the problems in the business of fresh flowers entrepreneurial community in Pak Khlong Talat Market Phra Nakhon district Bangkok metropolitan area 3) compare the level of difficulty business operators of fresh flowers in Pak Khlong Talat Market Phra Nakhon district Bangkok metropolitan area by type of fresh flowers available during the operation store location cost of registration average sales per month and how to promote and 4) provide guidelines for the development of entrepreneurial business fresh flowers in Pak Khlong Talat market Phra Nakhon district Bangkok metropolitan area. The samples entrepreneurs fresh flowers in Pak Khlong Talat market Phra Nakhon district Bangkok metropolitan area 97.The instrument used in research questionnaires and interviews. The statistics used for data analysis were frequency percentage mean standard deviation t-test ANOVA one-way and data analysis was descriptive. The results showed that: 1) The operator of the flowers sold in the country including orchids and other flowers such as Globe Amaranth Solidago Lotus Tuberose Dahlia Cutter Gardenia Authurium. The operation for a period of 5-10 years the flower shop in Agricultural Extension Market. There were fresh flowers in the registered capital of less than one hundred thousand baht baht with average sales of less than one hundred thousand baht per month and entrepreneurs how to promote sales by reducing promotion. 2) The problems in the business entrepreneurs of fresh flowers in Pak Khlong Talat Market Phra Nakhon district Bangkok metropolitan area as a whole has found problems at a high level. The first two items in order from most to least found that the side with the highest mean score. The management staff and raw materials were minimal marketing and finance. 3) Compare the problems of the business operators of fresh flowers in Pak Khlong Talat Market Phra Nakhon district Bangkok metropolitan area found that the duration of the operation store location how to promote different. There were problems in the business no different and just different. The statistical significance was at level.05 and 4) The development of business entrepreneurs found that fresh flowers established flower business in the country improving the ability of operators to be strengthened. There should be educating its were employees sent by international or both in the country and abroad to seek new knowledge also be careful financial management as a loan (NPL) should be minimal selection of quality fresh flowers regularly were a sustainable climate and should have a planned to make sales each year. So that the development will has been working in a better way.

The purpose of this thesis were: 1) to develop skills practice sets with a Macramé plant hanger for students with learning disabilities. 2) to examine the effect of using a Macramé skills practice Kits to make the Macramé plant hanger for students with learning disabilities. The sample group were 3 students with learning disabilities in home economics department Saowabha Vocational College. The instruments used in this research were student behavior observation forms Expert interview and Macramé skills evaluation forms. The findings revealed that: 1) Practice sets for Macramé work with Macramé plant hanger for students with learning disabilities had 2 sets with 8-10 patterns. Which skill training set A consists of Macramé methods handouts and the skill training set B consists of Macramé methods video. 2) The results of the study were the 1st student can be used the both sets. Which they were finished their works in time and had a good quality Macramé work pieces. And the 2nd and 3rd students can be used the skill training set B to be made work pieces with correct pattern more than the skill training set A set.