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Yun, Ho-Seop,Do, Jung-Hwan Korean Crystallographic Association 2004 韓國結晶學會誌 Vol.15 No.1
Two new nickel vanadium borophosphate cluster compounds, $(NH_4)_{10}[Ni(H_2O)_5]_4[V_2P_2BO_{12}]_6{\cdot}nH_2O$ (1) and $(NH_4)_{3.5}(C_3H_{12}N_2)_{3.5}[Ni(H_2O)_6]_{1.25}{[Ni(H_2O)_5]_2[V_2P_2BO_{12}]_6{\cdot}nH_2O$ (2) have been synthesized and structurally characterized. Inter-diffusion methods were employed to prepare the compounds. The cluster anion $[(NH_4)\;{\supset}\;V_2P_2BO_{12}]_6$ is used as a building unit in the synthesis of new compounds containing $Ni(H_2O){^{2+}_5}$ in the presence of pyrazine and 1,3-diaminopropane. Compounds contain isolated cluster anions with general composition ${[Ni(H_2O)_5]_n[(NH_4)\;{\supset}\;V_2P_2BO_{12}]_6}^{-(17-2n)}$ (n = 2, 4). Crystal data: $(NH_4)_{10}[Ni(H_2O)_5]_4[V_2P_2BO_{12}]_6{\cdot}nH_2O$, monoclinic, space group C2/m (no. 12), a = 27.538(2) ${\AA}$, b = 20.366(2) ${\AA}$, c = 11.9614(9) ${\AA}$, ${\beta}$ = 112.131(1)$^{\circ}$, Z = 8; $(NH_4)_{3.5}(C_3H_{12}N_2)_b[Ni(H_2O)_6]_{3.5}{[Ni(H_2O)_5]_2[V_2P_2BO_{12}]_6{\cdot}nH_2O$, triclinic, space group P-1 (no. 2), a = 17.7668(9) ${\AA}$, b = 17.881(1) ${\AA}$, c = 20.668(1) ${\AA}$, ${\alpha}$ = 86.729(1)$^{\circ}$, ${\beta}$ \ 65.77(1)$^{\circ}$, ${\gamma}$ = 80.388(1)$^{\circ}$, Z = 2.
( Ho Myung Lee ),( Chang Wook Nam ),( Yun Kyeong Cho ),( Hyuck Jun Yoon ),( Hyoung Seob Park ),( Hyung Seop Kim ),( In Sung Chung ),( Yun Seok Heo ),( Seung Ho Hur ),( Yoon Nyun Kim ),( Kwon Bae Kim ) 대한내과학회 2014 The Korean Journal of Internal Medicine Vol.29 No.5
Background/Aims: Although complex bifurcation stenting in patients with nonleftmain (LM) bifurcation lesions has not yielded better clinical outcomes thansimpler procedures, the utility of complex bifurcation stenting to treat LM bifurcationlesions has not yet been adequately explored. Methods: In the present study, patients who underwent LM-to-left anterior descending(LAD) coronary artery simple crossover stenting to treat significantde novo distal LM or ostial LAD disease, in the absence of angiographically significantostial left circumflex (LCX) coronary artery disease, were consecutivelyenrolled. The frequencies of 3-year major adverse cardiovascular events (MACEs;cardiac death, myocardial infarction, and target lesion revascularization), wereanalyzed. Results: Of 105 eligible consecutive patients, only 12 (11.4%) required additionalprocedures to treat ostial LCX disease after main vessel stenting. The mean percentagediameter of ostial LCX stenosis increased from 22.5% ± 15.2% to 32.3% ±16.3% (p < 0.001) after LM-to-LAD simple crossover stenting. The 3-year incidenceof MACEs was 9.7% (cardiac death 2.2%; myocardial infarction 2.2%; target lesionrevascularization 8.6%), and that of stent thrombosis 1.1%. Of seven cases (7.5%)requiring restenosis, pure ostial LCX-related repeat revascularization was requiredby only two. Conclusions: Simple crossover LM-to-LAD stenting without opening of a struton the LCX ostium was associated with acceptable long-term clinical outcomes.
Yun Ho Chung,Doo Jin Kim,In-Gyu Kim,Han Jun Kim,Seong Eun Chon,Jang Yong Jeon,Jae Pil Jung,Jin Cheol Jeong,Joo Seop Kim,Eun Joo Yun 한국간담췌외과학회 2012 한국간담췌외과학회지 Vol.16 No.1
Backgrounds/Aims: Bile duct injury is one of the potential severe complications that can occur during laparoscopic cholecystectomy, which can be cause by anatomic variations in the confluence of the bile duct. Recently magnetic resonance cholangiopancreatiocography (MRCP) has become a helpful tool to detect bile duct variation on a preoperative basis and to prevent bile duct injury during laparoscopic cholecystectomy, as well other hepatic surgeries. This study aimed to clarify the types of bile duct on MRCP and to search for a method of avoiding injury during laparoscopic cholecystectomy. Methods: Between January 2009 and December 2010, 277 patients underwent laparoscopic cholecystectomy with preoperative MRCP in our institution. On a retrospective basis, the bile ducts were categorized into 5 types according to the Couinaud classification system. Results: The proportion of types was revealed type A (70.4%), type B (8.7%), type C (19.5%), type D (0.7%), type E (0%), and type F (0.7%), respectively. Bile duct injury occurred in 4 cases (1.4%) during laparoscopic cholecystectomy. In particular, the possibility of aberrant extrahepatic confluence (Type C and F) represented the highest risk of duct injury (OR=11.89 [CI: 1.21-116.53]). Conclusions: Preoperative evaluation of the bile duct anatomy is important to avoid injury of duct during laparoscopic cholecystectomy. Specific types of bile duct variation should be considered as a high risk group for bile duct injury. (Korean J Hepatobiliary Pancreat Surg 2012;16:17-23)
Yun, Ho-Seop,Do, Jung-Hwan Korean Chemical Society 2005 Bulletin of the Korean Chemical Society Vol.26 No.1
Two new barium vanadium borophosphate compounds, $(NH_4)_2(C_2H_{10}N_2)_6[Ba(H_2O)_5]_2[V_2P_2BO_{12}]_6{\cdot}8H_2O$, Ba- VBPO1 and $(NH_4)_8(C_3H_{12}N_2)_4[Ba(H_2O)_7][V_2P_2BO_{12}]_6{\cdot}17H_2O$, Ba-VBPO2 have been synthesized by interdiffusion methods in the presence of diprotonated ethylenediamine and 1,3-diaminopropane. Compound Ba-VBPO1 has an infinite chain anion (${[BaH_2O)_5]_2[V_2P_2BO_{12}]_6}$$^{14-}$, whereas Ba-VBPO2 has a discrete cluster anion {[$Ba(H_2O)_7][V_2P_2BO_{12}]_6$}$^{16-}$. Crystal Data: $(NH_4)_2(C_2H_{10}N_2)_6[Ba(H_2O)_5]_2[V_2P_2BO_{12}]_6{\cdot}8H_2O$, triclinic, space group P$\overline{1}$ (no. 2), a = 13.7252(7) $\AA$, b = 15.7548(8) $\AA$, c = 15.8609(8) $\AA$, α = 63.278(1)$^{\circ}$, $\beta$ = 75.707(1)$^{\circ}$, $\gamma$ = 65.881(1)$^{\circ}$, Z = 1; $(NH_4)_8(C_3H_{12}N_2)_4[Ba(H_2O)_7][V_2P_2BO_{12}]_6{\cdot}17H_2O$, monoclinic, space group C2/c (no. 15), a = 31.347(2) $\AA$, b = 17.1221(9) $\AA$, c = 22.3058(1) $\AA$, $\beta$ = 99.303(1)$^{\circ}$, Z = 4.
안윤근 ( Yun Keun An ),조주현 ( Ju Hyon Cho ),윤호섭 ( Ho Seop Yoon ),박일웅 ( Il Woong Park ),김윤설 ( Yun Seol Kim ),김호진 ( Ho Jin Kim ),최상덕 ( Sang Duk Choi ) 한국수산학회 2009 한국수산과학회지 Vol.42 No.3
We determined the influence of Sargassum beds on the water quality in Gamak Bay, Korea. Water temperature and salinity range from 3.3 to 23.4℃ and from 29.6 to 33.7 psu, respectively. Dissolved oxygen was 10.45mg L-1 in the Sargassum bed and 9.23mg L-1 in the control. Chlorophyll-a was 3.90μg L-1 in the Sargassum bed and 2.21μg L-1 in the control. Chemical oxygen demand were 1.14mg L-1 in the Sargassum bed and 1.43mg L-1 in the control. Total nitrogen were 0.038mg L-1 in the Sargassum bed and 0.067 mg L-1 in the control. Total phosphorus were 0.043mg L-1 in the Sargassum bed and 0.072mg L-1 in the control. Multivariate statistical analysis was used to analyze data. Water temperature was highly positively correlated with DO(p<0.01). T-N was highly positively correlated with T-P(p<0.01).