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Sang Jae Suh,Jiseo Kim,Yong Jung Kwon 한국응용곤충학회 2013 한국응용곤충학회 학술대회논문집 Vol.2013 No.04
Thermal death kinetics was examined to develop a heat treatment method to control the Alnus ambrosia beetle, Xylosandrus germanus, in wood packing materials for export goods. To determine the feasibility of microwave irradiation as an alternative treatment, we performed laboratory experiments on the blocks (200x200x250mm) of Douglas-fir artificially infested with live adults with subsequent 2.45GHz microwave energy irradiation. The 100% mortality of treated Alnus Ambrosia Beetle was achieved above 58℃ of the measured wood temperature, regardless of irradiated time. All measurement points in the blocks reached 58℃ within 84-312 seconds with microwave irradiation by wood weight. Likewise, the 100% mortality of breetles were observed by hot water treatment on 52℃. We need further experimental verification, but commercial microwave (2.45GHz) treatment is a feasible alternative to conventional heat treatment to control Alnus ambrosia beetle on the wood packing materials for export goods.
Sang Jae Suh,Jiseo Kim,Yong Jung Kwon 한국응용곤충학회 2013 한국응용곤충학회 학술대회논문집 Vol.2013 No.10
Thermal death kinetics was examined to develop a heat treatment method to control the Pine wood nematode, Bursaphelenchus xylophilus, in wood packing materials for export goods. To determine the feasibility of microwave irradiation as an alternative treatment, we performed laboratory experiments on the blocks (200x200x250mm) of Douglas-fir artificially infested with live adults with subsequent 2.45GHz microwave energy irradiation. The 100% mortality of treated Pine wood nematode was achieved above 64℃ of the measured wood temperature, regardless of irradiated time. All measurement points in the blocks reached 64℃ within 84-312 seconds with microwave irradiation by wood weight. Likewise, the 100% mortality of nematodes were observed by hot water treatment on 62℃. We need further experimental verification, but commercial microwave (2.45GHz) treatment is a feasible alternative to conventional heat treatment to control Pine wood nematode on the wood packing materials for export goods.
프레아피투 사원 평면도 복원을 통한 유구 간 상관관계 고찰 -앙코르 유적 "프레아피투 사원" 연구 (1)-
박동희,김지서,김철민,Park, Dong-Hee,Kim, Jiseo,Kim, Chul-Min 한국건축역사학회 2017 건축역사연구 Vol.26 No.1
We surveyed Preah Pithu monument group site in Angkor. We made the map of present condition throughout the actual measurement and 3D scan. And we restored the floor plan, and completed the map of site placement. During this processing, we confirmed the middle axis of temples and studied the relation of temples and made clear the order of sites. Throughout this studying, we verified the middle axis of sites is not matched in Preah Pithu monument group. It is different aspect comparing with general Khmer religion architectures which were built with the planification belonging to strong royal authority and shared main axis through whole sites. In other words, we can estimate that Preah Pithu monument group was not built with planification rather than expanded as occasional demand during the process of actual use.