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Development of media for youth ‘Khun Chang Khun Phaen : Khun Chang Dedicate The Petition’ to facilitate creative tourism and economy in Suphanburi

Abstract

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Objective

ปัจจุบันเยาวชนขาดความสนใจและไม่เห็นความสำคัญของการเรียนวรรณคดี เพราะคิดว่าเป็นเรื่องยาก, ซับซ้อน และขาดสื่อการเรียนรู้ที่ทันสมัยและน่าสนใจ ดังนั้นผู้วิจัยจึงเลือกวรรณคดีเรื่องขุนช้างขุนแผนตอนขุนช้างถวายฎีกาที่ใช้สอนในระดับชั้นมัธยมศึกษาปีที่ 6 มาพัฒนาเนื่องจากเป็นวรรณคดีที่สะท้อนวิถีชีวิต ประวัติศาสตร์ ขนบธรรมเนียมประเพณี สถานที่ท่องเที่ยวที่มีอยู่จริง โดยจะพัฒนาสื่อประชาสัมพันธ์ให้ทันสมัย เหมาะกับเยาวชนเพื่อแก้ปัญหาจากการเรียนวรรณคดีดังที่กล่าวมา นอกจากนี้สื่อประชาสัมพันธ์ที่สร้างขึ้นสามารถใช้เพื่อส่งเสริมการท่องเที่ยวและเศรษฐกิจเชิงสร้างสรรค์ของจังหวัดสุพรรณบุรี

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Comparison of the efficiency of nano-type oxygen concentrators with bundle size different pump crates in sea bass nursery ponds

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This research aims to evaluate the efficiency of nano-type oxygen diffusers at different pump power levels in sea bass nursery ponds. The study examines how varying power levels affect dissolved oxygen distribution in the water and their impact on the health, growth, and survival rates of sea bass. The findings indicate that pump power levels influence dissolved oxygen concentration, with the optimal power level improving oxygen distribution in the pond. This enhancement leads to higher survival and growth rates for sea bass. The results provide valuable insights for selecting appropriate oxygen diffusers and pump power levels in fish nursery pond systems. The experiment consisted of two conditions: 1. Without fish – This condition assessed the oxygenation capacity, oxygen transfer coefficient, oxygen transfer rate, and oxygen transfer efficiency of pumps at three different power levels. 2. With fish – This condition evaluated whether the oxygen supplied by pumps at three power levels was sufficient, based on the growth rate and survival rate of the fish in the pond. Blood counts were conducted to assess the immune response. The collected data were statistically analyzed using the RCBD method for the condition without fish and the CRD method for the condition with fish, employing SPSS software.

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