Search Results - (Author, Cooperation:D. I. Lee)
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1Latest Papers from Table of Contents or Articles in PressD. I. Lee ; G. Zhu ; T. Sasaki ; G. S. Cho ; N. Hamdani ; R. Holewinski ; S. H. Jo ; T. Danner ; M. Zhang ; P. P. Rainer ; D. Bedja ; J. A. Kirk ; M. J. Ranek ; W. R. Dostmann ; C. Kwon ; K. B. Margulies ; J. E. Van Eyk ; W. J. Paulus ; E. Takimoto ; D. A. Kass
Nature Publishing Group (NPG)
Published 2015Staff ViewPublication Date: 2015-03-25Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: 3',5'-Cyclic-AMP Phosphodiesterases/antagonists & ; inhibitors/deficiency/genetics/*metabolism ; Animals ; Aortic Valve Stenosis/complications ; Cardiomegaly/drug therapy/*enzymology/etiology/*metabolism ; Cyclic GMP/*metabolism ; Humans ; Male ; Mice ; Mice, Inbred C57BL ; Muscle Cells/enzymology ; Myocardium/enzymology ; Natriuretic Peptides/metabolism ; *Nitric Oxide/metabolism ; Nitric Oxide Synthase ; Phosphodiesterase Inhibitors/pharmacology/therapeutic use ; Pressure ; Signal Transduction/drug effects ; Stress, Physiological ; Up-RegulationPublished by: -
2Latest Papers from Table of Contents or Articles in PressSeung-Hwan Do, W.-J. Lee, S. Lee, Y. S. Choi, K.-J. Lee, D. I. Gorbunov, J. Wosnitza, B. J. Suh, and Kwang-Yong Choi
American Physical Society (APS)
Published 2018Staff ViewPublication Date: 2018-07-06Publisher: American Physical Society (APS)Print ISSN: 1098-0121Electronic ISSN: 1095-3795Topics: PhysicsKeywords: MagnetismPublished by: -
3Articles: DFG German National LicensesStaff View
ISSN: 0029-554XSource: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Energy, Environment Protection, Nuclear Power EngineeringPhysicsType of Medium: Electronic ResourceURL: -
4Articles: DFG German National LicensesStaff View
ISSN: 1573-4803Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsNotes: Abstract The variation of optical and mechanical properties in ion-exchanged glasses was investigated. Ion exchange was carried out in KNO3, NaNO3 melts and their mixed melts with AgNO3. The glasses used were soda-lime-silicate glasses produced by the float process. In order to analyse the effects of ion exchange, colour variation for optical properties, bending strength, surface microhardness and softening point for mechanical properties, and resistivity for electrical properties, were measured. In the optical properties, silver ions play an important role in colouring, ion exchange in the mixed melt of KNO3 and AgNO3, and additional heat treatment in air made it possible to obtain a range of colours from yellow to reddish-brown. Bending strength was increased by five times over the values of the parent glasses, surface microhardness was increased about 50 kg mm−2, and the softening point was increased linearly with the amount of ion exchange resulting from ion exchange in the KNO3 melt, because the potassium ion plays a great role in strengthening in the mechanical properties. On the other hand, in the mixed melt of KNO3 and AgNO3, bending strength and surface microhardness were increased slightly in contrast with the KNO3 melt, and the softening point decreased on increasing the amount of ion exchange.Type of Medium: Electronic ResourceURL: -
5Articles: DFG German National LicensesMcDonald, C. J. ; Smith, P. B. ; Roper, J. A. ; Lee, D. I. ; Galloway, J. G.
Springer
Published 1991Staff ViewISSN: 1435-1536Keywords: Latex ; structure ; NMR spectroscopy ; interpenetrating network ; NMR linewidthSource: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyMechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsNotes: Abstract Polymer structure developed in latex particles has been investigated by measuring the temperature dependence of the carbon magnetic resonance (CMR) peak linewidths. Interpenetrating polymer networks (IPN) were formed by a continuous-addition emulsion polymerization process, in which a crosslinked seed particle was the site for formation of a linear second-stage polymer. Morphology was controlled by the level of crosslinking in the seed stage. The two polymers of the composite particle differ in their glass-transition temperatures by 100°C. By heating the particles to 50°C above the glass-transition temperature of the softer polymer, which formed the continuous network phase of this composite, it was possible to observe its CMR spectrum independently of the other polymer. The temperature dependence of the linewidth varied with the structure of the network. This was characterized by limiting linewidth behavior at both low and high temperature, which systematically varied as a function of the degree of mixing the two phases. Differential scanning calorimetry and electron microscopy corroborated the morphology change observed with the linewidth data. The influence of a diluent, present during formation of the network stage, was also examined with this CMR approach.Type of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesStaff View
ISSN: 0360-6376Keywords: Physics ; Polymer and Materials ScienceSource: Wiley InterScience Backfile Collection 1832-2000Topics: Chemistry and PharmacologyNotes: It has been found that when hydrophobic monomers are polymerized in the presence of highly hydrophilic polymer seed particles, the second-stage hydrophobic polymers form cores surrounded by the first-stage hydrophilic polymers, resulting in “inverted” core-shell latexes. The formation of core-shell morphology by this inversion process has been found to be dependent on the hydrophilicity and molecular weight of the first-stage hydrophilic polymers and the extent of phase separation between the two polymers involved. Particle morphology has been examined by electron microscopy, surface acid titration, alkali swelling of particles, and surface reactivity.Additional Material: 5 Ill.Type of Medium: Electronic ResourceURL: