|
|
|
|
|
ผลงานตีพิมพ์ในวารสารวิชาการSeasonality of water and carbon dioxide exchanges at a teak plantation in northern Thailandผู้แต่ง:Igarashi, Y., Tanaka, N., Tanaka, K., Yoshifuji, N., Sato, T., Mr.Chatchai Tantasirin, Assistant Professor, Suzuki, M., วารสาร: |
|
|
|
ผลงานตีพิมพ์ในวารสารวิชาการSeasonality affects post-thaw plasma membrane intactness and sperm velocities in spermatozoa from Thai AI swamp buffaloes (Bubalus bubalis)ผู้แต่ง:Dr.Seri Koonjaenak, Assistant Professor, Pongpeng, P, Wirowuthikul, S, Johannisson, A, Kunavongkrit, A, Rodriguez-Martinez, H, วารสาร: |
|
|
|
|
ผลงานตีพิมพ์ในวารสารวิชาการInfluence of Water Irrigation Schemes and Seasonality on Transmission Dynamics of Opisthorchis viverrini in the Snail Intermediate Host, Bithynia siamensis goniomphalos in Rice Paddy Fields in Northeast Thailandผู้แต่ง:Kopolrat, K., Sithithaworn, P., Kiatsopit, N., Namsanor, J., Dr.Nonglak Laoprom, Assistant Professor, Mr.Siripong Tesana, Andrews, R.H., Petney, T.N., วารสาร: |
|
|
ผลงานตีพิมพ์ในวารสารวิชาการTwo separate periods of the LAI-VIs relationships using in situ measurements in a deciduous broadleaf forestผู้แต่ง:Dr.Supannika Koeysin, Assistant Professor, Nagai, S., Nasahara, K.N., Muraoka, H., Suzuki, R., วารสาร: |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Safety Stock Levels for Products with Seasonality or High Variability in Demand) ผู้เขียน:ดร.ปรารถนา ปรารถนาดี, รองศาสตราจารย์, สุรัตน์ สุขต้อ สื่อสิ่งพิมพ์:pdf AbstractThis research considered methods for setting safety stock levels for products with seasonal demand or high variability in demand. The standard method was compared to the seasonal safety stock calculation method and the method proposed in Krupp (1997). Thirty three data sets of actual sales of agro-industrial products were used in the study. The results from the randomized complete block design analysis revealed that the standard method set higher safety stock levels and thus yielded a lower percentage of being out of stock during the replenishment lead time than the other two methods did, whereas the seasonal safety stock calculation method had higher out of stock levels, at the significance level of .05. It could be noticed that the seasonal safety stock calculation method and the method proposed by Krupp seemed to be suitable for many products with fairly apparent seasonality in demand. The seasonal safety stock calculation method seemed to be suitable for the seasonal demand data with no trend or low trend. The method proposed by Krupp seemed to be suitable with data sets with low MAPE, whereas the standard method seemed to be suitable with data sets having high variability in demand. Applying the Technique for Order Preference by Similarity to an Ideal Solution (TOPSIS), it was found that when the weight w for the safety stock level measure was set low (or in other words the weight for the out of stock level measure was set high), the standard method would be best. When the weight w was set higher, the percentage of products that were suitable with the method proposed by Krupp and the seasonal safety stock calculation method became higher. The percentage of products that were suitable with the method proposed by Krupp was almost always higher than that with the seasonal safety stock calculation method. |
ที่มา:การประชุมวิชาการวิศวกรรมแหล่งน้ำแห่งชาติ ครั้งที่ 4หัวเรื่อง:การประยุกต์ดัชนีฤดูกาลในการวิเคราะห์ช่วงเวลาที่เกิดปริมาณน้ำท่าน้อยที่สุด กรณีศึกษา : ลุ่มน้ำยมและลุ่มน้ำน่านส่วนบน |