선택한 단어 수는 입니다.
최소 단어 이상 선택하여야 합니다.
최소 단어 이상 선택하여야 합니다.
선택한 단어 수는 30입니다.
최대 10 단어까지만 선택 가능합니다.
최대 10 단어까지만 선택 가능합니다.
제안 방법
- Korean red pine (Pinus densoflora) boxed heart timbers with 250 × 250 mm (S), 300 × 300 mm (L) in cross section and 300 mm in diameter, and with the fixed length of 3,600 mm were prepared in this experiment. The specimens were divided into control and kerfing treatment specimen, respectively. The longitudinal kerfs with a width of 3 mm and the depth of 80 mm were sawn with a circular saw.
- This study was to aim at investigation into the characteristics of radio-frequency/vacuum (RF/V) drying of Korean red pine boxed heart timbers with 250 × 250 mm, 300 × 300 mm in cross section and 300 mm in diameter, and with the fixed length of 3,600 mm, that were subjected to a compressive load after a kerf pretreatment.
대상 데이터
- An experiment was carried out on the boxed heart square and round timbers in the RF/V drier, respectively. For the boxed heart square timbers, a positive electrode plate was placed in the centric position inside the chamber while the negative plates were placed on the top and bottom of a stack which was consisted of two layers of specimens.
- Korean red pine (Pinus densoflora) boxed heart timbers with 250 × 250 mm (S), 300 × 300 mm (L) in cross section and 300 mm in diameter, and with the fixed length of 3,600 mm were prepared in this experiment.
- The internal dimension of the rectangular chamber of a RF/V dryer used in this study were 600 cm in length, 120 cm in width, and 67 cm in depth. The maximum output of its radio-frequency (RF) generator at a fixed frequency of about 13 MHz, which was turned on for 8 minutes and then off for 2 minutes, was 25 kW.
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