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수용액 중의 중금속 (Cd^(2+), Pb^(2+), Zn^(2+), Cu^(2+))이온 분리를 위한 티오펜 및 퓨란기를 포함하는 리간드들의 합성과 착화합물의 안정도상수 결정
김준광,김정성 한국환경과학회 2004 한국환경과학회지 Vol.13 No.4
The thiophene or furan-containing hexadentate ligands 1,12-bis (2-theophene)-2,5,8,11-tetraazadodecane(Thiotrienr·4HCl) and 1,12-bis (2-furan)-2,5,8,11-tetraazadodecane(Furatrien 4HCl) were synthesized as their tetrahydrochloride salt and characterized by EA, IR, NMR, and Mass spectrum. Their protonation constants (logK_(nH)) and stability constants (1ogK^(M)_(L)) for Cd^(2+), Pb^(2+), Zn^(2+) and Cu^(2+) ions were determined in aqueous solution by potentiometry and compared with 1,12-bis(2-pyridyl)-2,5,8,11-tetra-azadodecane(Pytrien) of pyridyl-containing ligand. The effect stability constants of ligands and metal ion for removal of heavy metals in aqueous solution were described.
모발의 탈색 및 퍼머넌트 웨이브 효과에 따른 다-원소금속 성분의 함량분석
김준광,하병조 한국분석과학회 2007 분석과학 Vol.20 No.6
Variations of the twenty one metal components (Mg, Al, V, Cr, Co, Sr, Ba, Na, K Mn, Fe, Cu,Zn, As, Hg, Pb, Ca, P, Mo, Cd, Sb) were analyzed in human hair sample by inductively coupled plasma massspectrometry (ICP-MS). The effect of bleach and permanent wave manipulation on the elemental compositionwave. Hair sample was collected from male in the age of thirties. Hair sample (0.05 g) was added to the Teflondigestion bomb together with 1.5 mL of nitric acid and an appropriate amount of In as an internal standard.The sample was then decomposed in the microwave digestion system. In normal hair, the contents of V, Cr,Mn, Fe, Co, Cu, Zn, As, Mo, Cd, Sb and P were increased in permanent wave hair, and Mg, Al, V, Co, Sr,decreased with permanent wave hair, Mn, Fe, Cu, Zn, As, Hg, Pb and Ca contents were decreased with bleachedhair.
중금속이온 분리를 위한 퓨란 및 티오펜 기를 포함하는 리간드의 합성과 착화합물의 안정도 상수 결정
김준광(Jun-Kwang Kim) 한국환경관리학회 2006 環境管理學會誌 Vol.12 No.4
퓨란 및 티오펜 기를 포함하는 1, 9-bis (2-thiophene)-2,5,8-triazanonane과 1,9-bis(2-furan)-2,5,8-triazanonane 리간드를 세 개의 염산염으로 얻었다. 이를 원소분석, NMR, IR 및 질량스펙트럼으로 합성을 확인하였다. 그리고 리간드의 산해리상수(logKn<SUP>H</SUP>)와 중금속 Cd(Ⅱ), Pb(Ⅱ), Zn(Ⅱ) Cu(Ⅱ) 이온간의 안정도 상수(logKML)를 구하여 전에 합성보고된 1,9-bis (2-pyridyl)-2,5,8-triazano nane리간드와의 특성을 비교 검토하였다. The furan or thiophene-containing 1,9-bis(2-thiophene)-2,5,8-triazanonane and 1,9-bis (2-furan)-2,5,8-triazanonane ligands were synthesized as their trichloride salt and characterized by EA, NMR, IR, and Mass spectrum. Their protonation constants (logKn<SUP>H</SUP>) and stability constants(logKML) for Cd(Ⅱ), Pb(Ⅱ), Zn(Ⅱ) and Cu(Ⅱ) ions were determined by potentiometry and compared with pyridyl-containing 1,9-bis (2-pyridyl)-2,5,8-triazanonane ligand. The effect stability constants of ligands and metal ions for removal of heavy metals in aqueous solution were described.
김준광(Jun-Kwang Kim) 한국환경관리학회 2007 環境管理學會誌 Vol.13 No.1
피리딘과 아민을 포함하는 열린고리 형태의 여섯 자리 리간드 1,15-bis(2-Hydrobenzyl) -2,6,10,14-tetraazapentadecane(BSATPD)를 합성하였다. 리간드의 C. H. N 원소분석, IR-스팩트럼, ¹H- NMR, ¹³C-NMR, 및 질량분석법으로 합성을 확인하였다. 수용액에서 25℃, 이온 강도 0.1M(KNO₃)에서 리간드 산-염기 해리상수(logKn<SUP>H</SUP>) 및 Cu(Ⅱ), Ni(Ⅱ), Co(Ⅱ), Zn(Ⅱ), Pb(Ⅱ), Cd(Ⅱ) 금속이온들에 대한 안정도 상수 (logKML)를 전위차법으로 구하였고 1,15-bis(2-pyridyl) -2,6,10,14-tetraazapentadecane (bpyped) 리간드와 비교 고찰하였다. 안정도 상수값은 페놀을 포함하는 BSATPD 리간드가 금속에 대한 안정도 상수값이 피리딘을 포함하는 bpyped 리간드보다 크게 나타났고 각 금속 별로에 대한 안정도상수값의 크기는 Co(Ⅱ) < Ni(Ⅱ) < Cu(Ⅱ) > Zn(Ⅱ) > Pb(Ⅱ) > Cd(Ⅱ) 순으로 나타났다. The open-chain hexadentate ligands 1,15-bis (2-Hydrobenzyl) 2,6,10,14-tetraazapenta-decane (BSATPD) containing amine and phenol was synthesized. The synthesized ligand was confirmed by C. H. N. atomic analysis, IR spectroscopies, 1H NMR, ¹³C NMR and mass analysis. It's proton dissociation constants (logKn<SUP>H</SUP>) and stability constants (logKML) for Cu(Ⅱ), Ni(Ⅱ), Co(Ⅱ), Zn(Ⅱ), Pb(Ⅱ) and Cd(Ⅱ) ions were determined at 25℃ and ionic strength 0.1M(KNO₃) in aqueous solution by potentiometry and compared with that of analogous ligand 1,15-bis(2-pyridyl)-2,6,10,14-tetraazapentadecane(bpyped). Stability constants for heavy metal ions of BSATPD ligand containing phanol groups was larger then bpyped ligand containing pyridenl groups. The order of the stability constants of each metal ions was Co(Ⅱ) < Ni(Ⅱ) < Cu(Ⅱ) > Zn(Ⅱ) > Pb(Ⅱ) > Cd(Ⅱ).
사람의 실루엣 이미지 기반 3D 메시 데이터 생성 기술 개발
김준광(Junkwang Kim),이상헌(Sang-Heon Lee),손명규(Myoung-Kyu Sohn),김현덕(Hyunduk Kim) 대한전자공학회 2023 대한전자공학회 학술대회 Vol.2023 No.6
3D human modeling has become a vital research topic for providing user-friendly interfaces in various application areas. In this paper, we propose a new network for succinctly generating a 3D model of the human body based on orthogonal silhouettes. Utilizing the CAESAR dataset, we sample the contour of the silhouette and train the mapping between the silhouette and the 3D model through a neural network. We have expanded the number of training data through data augmentation, resulting in a 3.41% reduction in the average distance error between vertices. This approach paves the way for potential applications in fields such as virtual fitting, custom design, and body health monitoring through 3D human modeling.
여러자리 아민류를 포함하는 킬레이트수지의 구리(II)착물에 대한 과산화수소의 반응속도 및 메카니즘
김선덕,김준광,김창수 대구대학교 기초과학연구소 1997 基礎科學硏究 Vol.14 No.1
The polystyrene supported amines resin and their copper( II ) complexes have been synthesized and studied for catalytic action of the decomposition of hydrogen peroxide. The resins and their complexes were charactized by elemental analyses and infrared spectrometry. The rate-determining step of the decomposition of hydrogen peroxide with polystyrene supported amines such as diethylenetriamine, triethylenetetramine, tetraethylenepentamine and pentaethylenehexamine were determined by iodometry method. Lengths amines have a infuence on the rate of hydrogen peroxide decomposition. The oxidation of polystyrene supported amines with hydrogen peroxide were increased with increasing the number of nitrogen of amines.