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ลำดับ ชื่อบทความ ชื่อบทความภาษาอังกฤษ บทคัดย่อ ผู้ตีพิมพ์ กลุ่ม/รูปแบบการนำเสนอ ระดับ รายละเอียด
1 การพัฒนาความเข้าใจแนวคิด เรื่องโมเมนตัมเชิงมุม โดยใช้การเรียนรู้ที่เน้นลงมือปฏิบัติจริง Developing conceptual understanding of angular momentum by hands-on activities This study aims to develop learning achievement, to enhance normalized gain and to develop concepts of angular momentum. The study was conducted with grade-11 students ( N= 34) from Buntharikwittayakarn School, Ubonratchathani. This study was a one group pretest-posttest design. Research tools included learning plans , two-tier diagnostic learning achievement test and handson activities. Hands-on activities help to learning by doing , discussion , group comments and construction. Data were analyzed into mean ,percentage ,standard deviation ,t-test ,and the normalized gains . The results show that the students’ average prost-test score was higher than the pretest score with statistical significance at .05 levels. The normalized learning gain was 0.59 which was at the medium gain level. The percentages of the students good conception understanding in pre-test and post-test were 20.29% and 62.94%, respectively. Their percent of the conception understanding was increased 42.65%. อุดม ทิพราช Oral ชาติ
    วันที่ตีพิมพ์
  • 2017-10-19
    ชื่อวารสาร
    DOI
2 การพัฒนาความเข้าใจแนวคิด เรื่องการเคลื่อนที่แบบโพรเจกไทล์ โดยใช้แนวทางการเรียนรู้เชิงรุก Developing conceptual understanding on projectile motion by using active learning approach The purposes of this research were (1) to develop the students’ learning achievement (2) to develop the students’ conceptual understanding and (3) to study the students’ learning gain on projectile motion by using active learning approach. The samples of this research were 41 grade 10 students from Suratthani School in the second semester of the 2016 academic year. By using one group pretest posttest design. The authors have designed activities to enhance the understanding of projectile concept emphasizing a constant acceleration in vertical and a constant velocity in horizontal. The research tools used in this study were lesson plans on projectile motion by using active learning approach, Two-tier diagnostic learning achievement test and students’satisfaction questionnaire. The data were analyzed into the average, percentage, standard deviation, t-test and normalized gain. The result showed that average achievement score was increased with statistically significant level of .05, the students’ post-instruction was significantly higher than their per-instruction and The students' learning advancement was 0.42 which was in a medium level. The result indicated that active learning activities can be used to develop student conceptual understand about projectile motion because the students can learn and construct knowledge with the active learning approach. อุดม ทิพราช Oral ชาติ
    วันที่ตีพิมพ์
  • 2017-10-19
    ชื่อวารสาร
    DOI
3 การศึกษาฤทธิ์ในการต้านอนุมูลอิสระและปริมาณฟีนอลิกรวมของสารสกัดข้าวกล้องงอก value='Determination of antioxidant activities and total phenolic compound of Germinated brown rice' value='In this study, the antioxidant activities and total phenolic compound of germinated brown rice were evaluated. The eight type rice samples were extracted by hexane, ethyl acetate and methanol. Antioxidant activity using DPPH Radical Scavenging Activity (DPPH assay) and Ferric Reducing Antioxidant Power (FRAP assay). Total phenolic compound was measured by Folin-Ciocalteu method. The antioxidant activities obtained from DPPH assay clearly indicate that methanol crude extract of Mali Dang germinated brown rice shows highest antioxidant activity with 95.45 %. For the FRAP assay, methanol crude extract of Mali Dang germinated brown rice shows highest value with 1,111.15 mg. Moreover, the results obtained from total phenolic compound of crudes extract by Folin-Ciocalteu reagent. The results show that the methanol crude extraction of Mali Dang germinated brown rice is highest total phenolic content with 408.85 mg.  ' สมจินตนา ทวีพานิชย์ Poster ชาติ
    วันที่ตีพิมพ์
  • 2019-07-11
    ชื่อวารสาร
    DOI
4 ระบบการจับคู่การซื้อขายผลผลิตทางการเกษตรแบบอัตโนมัติ value='value='Automatic Matching System For Trading Agricultural Product'' value='value='This system has been developed which can operate on both the Android and iOS operating systems. They were developed by Vue.JS and MongoDB. Application which can facilitate agriculturists in the trading of 10 types of Agricultural Product. For examples Waxy Corn, Sweet Corn, Garlic, Chili, Pumpkin, Onion, Tomato, Lettuce, Yard Long Beans and Fragrant Flower. The system composed of the automatic Price Matching System that help agriculturists gain proper price and useful information according to customer’s need. This system used many factors such as price, quantity, transportation distance and satisfaction rating for selecting the agricultural product. And the system also provides useful information (ex. price and period) to clarify and notify general product’s price which in turn help the agriculturists make real-time decision when prices meet their need. For experimental result, we divided experimental into two sets: First, we validated the correct of function based technique using Black Box Testing Method. The results have confirmed application can work accurately. Second, we conducted experiment measuring by user satisfaction based on Likert Type Scale and we found that 12 users rated the result score were 4.02 (S.D=0.61) respectively.'' ชยาพร แก่นสาร์ Oral ชาติ
    วันที่ตีพิมพ์
  • 2020-09-03
    ชื่อวารสาร
    DOI
5 การศึกษาระดับความสูงของรองเท้ากับการชี้บ่งอาการเส้นเลือดขอดในนักศึกษาหญิงสาขาวิชาการจัดการ value='A study of the High Heel Height and the Indication of Varicose Veins in Female Students, Program in Hotel Management, Ubon Ratchathani University' value='This cross-sectional survey research purposed to study of the high heel height and the indication of varicose veins in female students, Program in hotel management, Ubon Ratchathani were a 3rd year student of 113 people. The results showed that mean age was 21 years (51.3%). The most of wearing the shoes was moccasins that not more than height equal 1 inches (32.7%) and measure the high heel height 1.50 inches (56.6%). Results of the relative contribution of personal factors and indication of varicose veins were not statistically significant (p-value>0.05). Wearing shoes information consist of leg and ankle swelling, leg and ankle cramp, leg and ankle fatigue, leg and ankle itching or irritation and duration of the activity, stand, walk, in 1 days were statistically related to the level of symptoms and signs (p-value<0.05). Wearing shoes information consist of pain in the leg, pain in the legs or ankles and leg and ankle swelling were statistically related to the level of symptoms and signs (p-value<0.05). Therefore, there should be training and knowledge about ergonomics, the dangers of high heels that affect your health and activities that may create a risk while wearing high heels. ' นิภาพร คำหลอม Oral ชาติ
    วันที่ตีพิมพ์
  • 2020-09-03
    ชื่อวารสาร
    DOI


ระดับนานาชาติ 6qwCQR.png
ลำดับ ชื่อบทความ ชื่อบทความภาษาอังกฤษ บทคัดย่อ ผู้ตีพิมพ์ กลุ่ม/รูปแบบการนำเสนอ ระดับ รายละเอียด
1 Detecting single and multiple atmospheric secondaries in an 18NM64 Detecting single and multiple atmospheric secondaries in an 18NM64 We present an update on the analysis of cross-counter time-delay histograms with 5 µs bins as recorded since late 2015 in the Princess Sirindhorn Neutron Monitor, an 18NM64 (with 18 counter tubes in a continuous row) at 2560 m altitude in Doi Inthanon, Thailand. A cross-counter relative leader fraction Li j can be defined as the fraction of pulses measured in counter number i that are uncorrelated in time with the most recent pulse in counter j. For low tube separation, Li j rapidly increases with increasing tube separation |i− j|, as expected from the spatial spreading of neutrons produced by the same atmospheric secondary particle inside the neutron monitor. At high tube separation, Li j increases slowly with increasing tube separation and remains different from unity, which we interpret as due to multiple atmospheric secondaries arriving in rapid succession after originating from the same primary cosmic ray. We study temporal variations of the cross-counter relative leader fraction at large tube separation (|i− j| > 6, or roughly more than 3 m) and analyze the possible contribution of atmospheric effects to the data. ธานินทร์ นุตโร Oral นานาชาติ
    วันที่ตีพิมพ์
  • 2019-08-18
    ชื่อวารสาร
    DOI
2 Neutron monitor time-delay measurements to track cosmic ray spectral variation due to solar modulation at high and low cutoff rigidity Neutron monitor time-delay measurements to track cosmic ray spectral variation due to solar modulation at high and low cutoff rigidity The solar modulation of Galactic cosmic rays (GCRs) provides remote sensing of heliospheric conditions throughout the ∼11-yr sunspot cycle and ∼22-yr solar magnetic cycle. Neutron monitors (NMs) can measure cosmic ray rates above a cutoff rigidity with high precision (∼0.1%) over such time scales. To avoid systematic uncertainties in comparing NM count rates from different stations, here we study solar modulation of the GCR spectrum by independently using neutron time-delay histograms to determine the leader fraction L, i.e., the inverse neutron multiplicity, as a proxy of the GCR spectral index above the cutoff. Data were collected using specialized electronics at two high-altitude NM stations: 1) the Princess Sirindhorn Neutron Monitor (PSNM) at Doi Inthanon, Thailand, with the world's highest vertical geomagnetic cutoff rigidity, 16.8 GV, from 2007 December to 2018 September, and 2) the South Pole Neutron Monitor with an atmosphere-limited cutoff of ∼1 GV, from 2013 December to 2018 September. After correcting for pressure and (in Thailand) precipitable water vapor, we find that L is roughly correlated with the count rate, but also exhibits hysteresis that indicates a change in spectral shape after the change in solar magnetic polarity. These methods enhance the high-precision GCR spectral information from the worldwide NM network and extend it to higher rigidity ธานินทร์ นุตโร Oral นานาชาติ
    วันที่ตีพิมพ์
  • 2019-07-24
    ชื่อวารสาร
    DOI
3 Neutron monitor time-delay measurements to track cosmic ray spectral variation due to solar modulation at high and low cutoff rigidity Neutron monitor time-delay measurements to track cosmic ray spectral variation due to solar modulation at high and low cutoff rigidity The solar modulation of Galactic cosmic rays (GCRs) provides remote sensing of heliospheric conditions throughout the ∼11-yr sunspot cycle and ∼22-yr solar magnetic cycle. Neutron monitors (NMs) can measure cosmic ray rates above a cutoff rigidity with high precision (∼0.1%) over such time scales. To avoid systematic uncertainties in comparing NM count rates from different stations, here we study solar modulation of the GCR spectrum by independently using neutron time-delay histograms to determine the leader fraction L, i.e., the inverse neutron multiplicity, as a proxy of the GCR spectral index above the cutoff. Data were collected using specialized electronics at two high-altitude NM stations: 1) the Princess Sirindhorn Neutron Monitor (PSNM) at Doi Inthanon, Thailand, with the world’s highest vertical geomagnetic cutoff rigidity, 16.8 GV, from 2007 December to 2018 September, and 2) the South Pole Neutron Monitor with an atmospherelimited cutoff of ∼1 GV, from 2013 December to 2018 September. After correcting for pressure and (in Thailand) precipitable water vapor, we find that L is roughly correlated with the count rate, but also exhibits hysteresis that indicates a change in spectral shape after the change in solar magnetic polarity. These methods enhance the high-precision GCR spectral information from the worldwide NM network and extend it to higher rigidity.  ธานินทร์ นุตโร Oral นานาชาติ
    วันที่ตีพิมพ์
  • 2019-07-24
    ชื่อวารสาร
    DOI