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장해성(Chang Hae Sung),강명웅(Kang Myung Ung),이근송(Lee Guhn Song) 한국퍼실리티매니지먼트학회 2000 한국퍼실리티매니지먼트학회지 Vol.2 No.1
BACnet is a standard communications protocol designed by consensus to allow devices fromdifferent vendors to exchange information. BACnet was adopted as a Standard of ASHRAE andANSI, also is Pre-standard TC~247 in European Community. BACnet support 4 Layer - Application,Network, Data link, Physical Layer - of ISO 7 Layer BACnet support ARCNET, Ethemet, LonTalk,MS/TP(RS-485), Point to Point(RS-232) and exchanging message of devices are supported byObject, Property, Service.
2-[4-(6-chloro-2-benzoxazolyloxy)phenoxy]-propionamide 유도체의 합성과 제초 활성
장해성(Hae Sung Chang),정근회(Kun Hoe Chung),고영관(Young Kwan Ko),류재욱(Jae Wook Ryu),우재춘(Jae Chun Woo),구동완(Dong Wan Koo),강용희(Yong Hee Kang),김태준(Tae Joon Kim),김진석(Jin Seog Kim),정봉진(Bong Jin Chung),권오연(Oh Yeon K 한국농약과학회 2004 농약과학회지 Vol.8 No.2
A series of 2-[4-(6-chloro-2-benzoxazolyloxy)phenoxy]-propionamide were synthesized and evaluated for post herbicidal activity under upland condition. 2-[4-(6-chloro-2-benzoxazolyloxy)phenoxy]-N-(2-fluorophenyl)-N-methyl propionamide showed high herbicidal activity against barnyardgrass with good selectivity on rice.
류성곤(Sung Kon Ryu),정근회(Kun Hoe Chung),고영관(Young Kwan Ko),장해성(Hae Sung Chang),류재욱(Jae Wook Ryu),우재춘(Jae Chun Woo),구동완(Dong Wan Koo),김대황(Dae-Whang Kim) 한국농약과학회 2004 농약과학회지 Vol.8 No.1
Fenoxaprop-p-ethyl[Ethyl (R)-2-{4-(6-chloro-1,3-benzoxazol- 2-yloxy)phenoxy}propionate] is well known as a herbicide for its specific activity against the weed grasses. This compound was synthesized by the reaction of 4-(6-chloro-1,3-benzoxazol-2-yloxy)phenol and ethyl (S)-O-(p-toluenesulfonyl)lactate in good yields with high optical pure (optical purity : 99.9% up). In this process Walden inversion occurs, whereby the S-configuration of the propionic acid derivative is converted to the R-configuration of the final product. 4-(6-Chloro-1,3-benzoxazol-2-yloxy)phenol was obtained by 5 step reactions in over-all 70% yields using inexpensive raw materials.
Young Kwan Ko(고영관),Hae Sung Chang(장해성),Jae Wook Ryu(류재욱),Jae Chun Woo(우재춘),Dong Wan Koo(구동완),Kun Hoe Chung(정근회),In Taek Hwang(황인택),Dae-Whang Kim(김대황) 한국농약과학회 2002 농약과학회지 Vol.6 No.1
New benzenesulfonylurea derivatives possessing bicyclic ketal subgroup were synthesized and shown to have interesting herbicidal activities under upland greenhouse screening.
새로운 Ortho 이치환 Benzenesulfonyl Urea 유도체의 제초활성과 수용액중의 잔류성
성낙도(Nack Do Sung),김용집(Yong Jip Kim),장해성(Hae Sung Chang),김대황(Dae Whang Kim) 한국응용생명화학회 1995 Applied Biological Chemistry (Appl Biol Chem) Vol.38 No.6
The new sixteen herbicidal N-2-(1-hydroxy-2-fluoroethyl)-6-substituted(X)-benzenesulfonyl-N`-4,6-dimethoxypyrimidinyl-2-yl urea derivatives(S) were synthesized and thier herbicidal activities(pI_(50)) in vivo against rice(Orysa Sativa L.), Barnyard grass(Echninochloa orizicola) and Bulrush(Scirpus juncoides) were measured by the pot test under paddy conditions. The structure activity relationship(SAR) were studied using the physicochemical parameters of ortho-substituents(X) and hydrolysis rate constant(logk) and herbicidal activities by the multiple regression technique. The SAR suggested that the herbicidal activities were more dependant on the hydrolysis rate constant(logk$gt;0) than the steric constants (Es$lt;L1(or B₄)$lt;0), small width(B₄) and length(L₁). Among them, halogens(2 & 5), methyl(15) and non(H) substituent(1) showed higher herbicidal activity for weeds which was not tolerent to rise and weeds. The herbicidal activity was increased and the persistency in aqueous solution was decreased by electron donating(σ0$lt;0) groups as ortho-substituent(X). From the relationship equation between herbicidal activity and hydrolysis rate constant, it was assumed that the both reactions would be proceeds with similar process. And the conditions on the ortho substituents to show higher herbicidal activity and the persistency in aqueous solution were also discussed.
New benzenesulfonylurea derivatives possessing β-hydroxyalkyl subgroup
Young Kwan Ko(고영관),Hae Sung Chang(장해성),Jae Wook Ryu(류재욱),Jae Chun Woo(우재춘),Dong Wan Koo(구동완),In Taek Hwang(황인택),Dae-Whang Kim(김대황) 한국농약과학회 2001 농약과학회지 Vol.5 No.3
New benzenesulfonylurea derivatives possessing (β-hydroxyalkyl subgroup were synthesized and found to have interesting herbicidal activity in greenhouse screening.
신규 Sulfonylurea 제초제의 합성과 제초 특성
류재욱(Jae Wook Ryu),김병철(Byung Chul Kim),정근회(Kun Hoe Chung),장해성(Hae Sung Chang),고영관(Young Kwan Ko),우재춘(Jae Chun Woo),구동완(Dong Wan Koo),김대황(Dae-Whang Kim) 한국농약과학회 2002 농약과학회지 Vol.6 No.4
New and fast degradable sulfonylurea derivaties possessing N-methylureido group were synthesized and their herbicidal effects were tested under the upland in greenhouse. N-methylureido benzenesulfonylureas showed better herbicidal activity against grass weeds than broad leaf weeds under post emergence.