http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
제초제처리에 (除草劑處理) 의한 잣나무털녹병 중간기주 ( 송이풀류 ) 제거시험
이창근,김현중,여운홍 ( Chang Keun Yi,Hyun Joong Kim,Woon Hong Yeo ) 한국산림과학회 1981 한국산림과학회지 Vol.51 No.1
The study was conducted during 1975-1980 to evaluate the performance of several herbicides in controling alternate host, Pedicularis spp., of white pine blister rust disease in forest stands. The results obtained were summarized as follows. 1. It was found that Roundup was effective and most suitable herbicide in the fosest stands except that it accompanied some chemical injuries to neighboring plants. 2. As for the reduction density on the plot treated with Roundup was 100% and 65-91% respectively when investigated one and two years after its treatment on Pedicularis spp. 3. Another four chemicals, 2.4-D, Gramoxone, 2.4. 5-T and Para-col killed stems and leaves of Pedicularis spp. at the year treated, but appeared again next spring. 4. Eradication effectiveness in terms of spraying season was proved to be that late August was better than late May or June.
우리나라 잣나무 털녹병균의 기주선택성과 (寄主選擇性) 병원성조사
이창근,김현중 ( Chang Keun Yi,Hyun Joong Kim ) 한국산림과학회 1983 한국산림과학회지 Vol.62 No.1
Pedicularts spp. are the alternate hosts of the white pine blister rust fungi in the forests of Korea, and Ribes spp. were found as other alternate hosts by artificial inoculation test. New biotypes (races) with different host selectivity and pathogenicity of the causal fungi were speculated at various places in Korea. The aeciospores of the fungi were collected from two isolated places, Pyeongchang and Namwoen, and artificially inoculated on Pedicularis resupinata and six species of the genus Ribes. Among the tested alternate host species, P. resupinata and R. montigenum were only susceptible to both the Pyeongchang population and the Namwoen population, showing similar pathogencity between the two fungai populations. Three white pine species were planted in fungus-infested stands to study the susceptibility of each tree species. Four years later, 17.7% of Pinus koraiensis and 26.3% of the P, strobus were infected, but P. parviflora was free from attack. From the above results, it was concluded that the white pine blister rust fungus populations in Korea are of the same biotype, with .P. koraiensis and P. strobus as aecial hosts, and Pedicularis spp. and Ribes spp. as telial hosts.
고온건식탈황 유동층 반응기 설계를 위한 zinc titanate 탈황제의 반응특성 연구
이창근(Chang Keun Yi),박재현(Jae Hyeon Park),조성호(Sung Ho Cho),진경태(Gyoung Tae Jin),손재익(Jae Ek Son) 한국화학공학회 1999 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.37 No.1
A reaction rate of a zinc titanate sorbent with H₂S for scale-up design was obtained from a simplified semi-batch fluidized reaction model and experimental data from a hot gas desulfurization fluidized bed reactor at high pressure condition. The global reaction rate from a fluidized bed reactor of 7.5 ㎝ inside diameter was 1,276 ㎤ gas/gmole H₂S/sec, which is 5 times smaller than that from TGA. The global reaction rate can be used in the design for the scale-up because the reaction rate includes the effects in fluidized bed such as bubble characteristics, mass transfer, entrainments, and solid mixing etc. Sensitivity of parameters on a fluidized reactor performance was analyzed with the simplified model.
생물화공 , 에너지 / 환경 : Zinc Titanate 탈황제의 탈황 재생 반응 속도 해석
이창근(Chang Keun Yi),조성호(Sung Ho Cho),손재익(Jae Ek Son),문영섭(Young Sub Moon),최정후(Jeong Hoo Choi) 한국화학공학회 2001 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.39 No.2
Characteristics of desulfurization and regeneration reactions of a zinc titanate sorbent used to absorb hydrogen sulfide in coal gas have been investigated by using a thermo-gravimetric analyzer. Desulfurization was carried out with fresh sorbent and regeneration with sorbent sulfurized as much as 53%. Temperature ranged from 600 ℃ to 750 ℃ and from 650 ℃ to 750 ℃ for desulfurization and regeneration, respectively. Oxygen concentration ranged from 3 vol% to 21 vol% for regeneration. Activation energies of desulfurization and regeneration were found as 13.36 ㎉/gmol and 37.94 ㎉/gmol, respectively. The order of regeneration reaction with respect to oxygen concentration was found as 0.662. The rate of desulfurization decreased as the conversion of sorbent increased. The desulfurization ability of sorbent was depleted at a conversion about 0.789. The rate of regeneration decreased after an initial increase as conversion increased. The maximum regeneration rate occurred at a conversion about 0.5. Rate equations of desulfurization and regeneration were suggested.