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정진권,Ksenia Egorova 대한전자공학회 2004 전자공학회지 Vol.31 No.7
근거리 통신(LANs) 과 광대역 네트워크(WANs)의 빠른 성장은 네트워크 시험 장비의 성장과 함께 해 왔다. 네트워크는 다양한 산업 내에서 필수적인 부분이 되었으며, 신뢰성과 네트워크 집약성과 함께 네트워크 운영자들은 사용자들의 요구에 부응하기 위한 모니터링 솔루션과 시험을 만족시키는 다양한 네트워크 시험장비를 요구하고 있다. IT의 급속한 발전은 네트워크 인프라의 비약적인 발전을 가져오며 기업의 업무 환경에 혁신적인 변화를 불러왔다. (중략)
Seo, Hyewon,Jun, Mi Eun,Egorova, Olga A.,Lee, Kyung-Ha,Kim, Kyong-Tai,Ahn, Kyo Han American Chemical Society 2012 Organic letters Vol.14 No.19
<P>To alleviate side reactions identified in an <I>N</I>-propargyl-rhodamine lactam sensing system, we devised the novel reaction-based sensing scheme for gold species based on the alkynophilicity. A fluorescein (2-ethynyl)benzoate underwent Au(III)-promoted ester hydrolysis selectively over other metal ions with high sensitivity, which accompanies a turn-on fluorescence change in pH 7.4 HEPES buffer. The work offers a versatile reactive moiety for the development of gold probes with improved sensing properties.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/orlef7/2012/orlef7.2012.14.issue-19/ol302291c/production/images/medium/ol-2012-02291c_0002.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/ol302291c'>ACS Electronic Supporting Info</A></P>
Antufiev, Boris A.,Sun, Ying,Egorova, Olga V.,Bugaev, Nikolay M. Techno-Press 2022 Advances in aircraft and spacecraft science Vol.9 No.1
The physical and mathematical foundations of the heat-shielding composite materials functioning under the conditions of aerodynamic heating of aircraft, as well as under the conditions of the point effect of high-energy radiation are considered. The problem of deformation of a thin shallow shell under the action of a local temperature field is approximately solved. Such problems arise, for example, in the case of local destruction of heat-protective coatings of aircraft shells. Then the aerodynamic heating acts directly on the load-bearing shell of the structure. Its destruction inevitably leads to the death of the entire aircraft. A methodology has been developed for the numerical solution of the entire complex problem on the basis of economical absolutely stable numerical methods. Multiple results of numerical simulation of the thermal state of the locally heated shallow shell under conditions of its thermal destruction at high temperatures have been obtained.
Antufiev, Boris A.,Sun, Ying,Egorova, Olga V.,Bugaev, Nikolay M. Techno-Press 2022 Advances in aircraft and spacecraft science Vol.9 No.1
The physical and mathematical foundations of the heat-shielding composite materials functioning under the conditions of aerodynamic heating of aircraft, as well as under the conditions of the point effect of high-energy radiation are considered. The problem of deformation of a thin shallow shell under the action of a local temperature field is approximately solved. Such problems arise, for example, in the case of local destruction of heat-protective coatings of aircraft shells. Then the aerodynamic heating acts directly on the load-bearing shell of the structure. Its destruction inevitably leads to the death of the entire aircraft. A methodology has been developed for the numerical solution of the entire complex problem on the basis of economical absolutely stable numerical methods. Multiple results of numerical simulation of the thermal state of the locally heated shallow shell under conditions of its thermal destruction at high temperatures have been obtained.
Liquid phase deposition of amorphous In2S3 nanorods: Effect of annealing on phase change
이원주,백수진,R.S. Mane,V.V. Todkar,Olga Egorova,채원석,이수형,한성환 한국물리학회 2009 Current Applied Physics Vol.9 No.11
The indium sulfide (In2S3) nanorods thin films were prepared by wet chemical process. The films were sintered in air atmosphere from 523 to 673 K for 10 min. The chemically deposited In2S3 nanorods thin films were characterized by structural and optical techniques. Effect of annealing revealed change in phase from an amorphous In2S3 to nanocrystalline In2O3 (without changing nanorod morphology) was reflected from enhanced absorbance due to the crystallinity improvement, and then decreased due to the phase change.
Kim, K.,Kim, I.,Maiti, N.,Kwon, S.J.,Bucella, D.,Egorova, O.A.,Lee, Y.S.,Kwak, J.,Churchill, D.G. Pergamon Press 2009 Polyhedron Vol.28 No.12
Herein the synthesis and binding studies of novel trans-A<SUB>2</SUB>B-corrole and trans-A<SUB>2</SUB>B<SUB>2</SUB>-porphyrin derivatives are presented in comparing manganese(III)-organophosphonate (OP) binding (e.g., M<SUP>n+</SUP>←O?PR(OR)<SUB>2</SUB>) capabilities. H<SUB>3</SUB>(PFP-VC) [PFP-VC=5,15-di(pentafluorophenyl)-10-(3-vinylphenyl)corrolate] was synthesized by way of literature procedures and was characterized by a variety of 2-D NMR spectroscopic techniques and single-crystal X-ray diffraction. These compounds represent the first example of 3-vinyl-phenyl-containing meso-substituted corroles or porphyrins. Mn(PFP-VC) (3) was treated separately with (CH<SUB>3</SUB>CH<SUB>2</SUB>O)<SUB>2</SUB>P?O(C<SUB>3</SUB>H<SUB>6</SUB>NMe<SUB>2</SUB>), (C<SUB>4</SUB>H<SUB>9</SUB>O)<SUB>2</SUB>P?O(Me), (C<SUB>2</SUB>H<SUB>5</SUB>O)<SUB>2</SUB>P?O(CH<SUB>2</SUB>COCH<SUB>3</SUB>), (CH<SUB>3</SUB>CH<SUB>2</SUB>O)<SUB>2</SUB>P?O(Me), to give 1:1 adducts, as determined by UV-Vis spectroscopy (Job Plot), giving a red shift; Ph<SUB>3</SUB>P?O, was also found to bind, but very weakly. The trans-A<SUB>2</SUB>B<SUB>2</SUB>-porphyrin analogue Mn(PFP-VP) (4) was also prepared by way of a literature procedure; related binding studies gave 1:1 organophosphonate-Mn(PFP-VP) adducts (Job Plot). A clean blue shift occurred for the Mn-porphyrins at higher organophosphonate loadings (K<SUB>a</SUB> values: 6.7 (0.9)-11.9 (0.4)M<SUP>-1</SUP>). DFT geometry optimizations of O?P(OMe)<SUB>2</SUB>Me binding and formal Mn-O or P-O cleavage products in the unsubstituted neutral Mn-corrolato and -porphyrinato systems with a range of metal-based spin states revealed greatest stability in formal phosphoryl oxygen binding (energies: 11-13kcal/mol) for the Mn-corrole (singlet); the Mn-porphyrin (sextet) was also quite stable.
Lee, W.,Baek, S.,Mane, R.S.,Todkar, V.V.,Egorova, O.,Chae, W.S.,Lee, S.H.,Han, S.H. Elsevier 2009 Current Applied Physics Vol.9 No.1
The indium sulfide (In<SUB>2</SUB>S<SUB>3</SUB>) nanorods thin films were prepared by wet chemical process. The films were sintered in air atmosphere from 523 to 673K for 10min. The chemically deposited In<SUB>2</SUB>S<SUB>3</SUB> nanorods thin films were characterized by structural and optical techniques. Effect of annealing revealed change in phase from an amorphous In<SUB>2</SUB>S<SUB>3</SUB> to nanocrystalline In<SUB>2</SUB>O<SUB>3</SUB> (without changing nanorod morphology) was reflected from enhanced absorbance due to the crystallinity improvement, and then decreased due to the phase change.