Results 311 to 320 of about 1,835,423 (352)
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International Journal of Biological Macromolecules, 1990
Lamellar single crystals of chitosan were prepared at 125 degrees C by adding ammonia to a low DP fraction of chitosan dissolved in water. The crystals gave sharp electron diffraction diagrams which could be indexed in an orthorhombic P2(1)2(1)2(1) unit cell with a = 8.07 A, b = 8.44 A, c = 10.34 A.
Cartier, N., Domard, A., Chanzy, H.
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Lamellar single crystals of chitosan were prepared at 125 degrees C by adding ammonia to a low DP fraction of chitosan dissolved in water. The crystals gave sharp electron diffraction diagrams which could be indexed in an orthorhombic P2(1)2(1)2(1) unit cell with a = 8.07 A, b = 8.44 A, c = 10.34 A.
Cartier, N., Domard, A., Chanzy, H.
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Single crystal ↔ single crystal polymorphic transformations in K0.985Rb0.015NO3
Crystallography Reports, 2014Polymorphic transformations in K0.985Rb0.015NO3 crystals have been investigated by optical microscopy and X-ray diffraction. The equilibrium temperature between modifications II and III (T0 = 450 K) and the unit-cell parameters of crystals of these modifications are determined.
V. I. Nasirov +3 more
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Electrodeposited Ceramic Single Crystals
Science, 1999Single-crystal films are essential for devices because the intrinsic properties of the material, rather than its grain boundaries, can be exploited. Cubic bismuth oxide has the highest known oxide ion mobility, which makes it useful for fuel cells and sensors, but it is normally only stable from 729° to 825°C.
, Switzer, , Shumsky, , Bohannan
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Polymorphic single crystal ↔ single crystal transformations in Rb0.975Cs0.025NO3
Crystallography Reports, 2011The crystal growth morphology of modifications IV, III, II, and I during the IV ↔ III ↔ II ↔ I polymorphic transformations in Rb0.975Cs0.025NO3 has been investigated by optical microscopy. The equilibrium temperatures between phases IV and III (T0 = 393 ± 0.5 K), III and II (T0 = 421 ± 0.5 K), and II and I (T0 = 497 ± 0.5 K) of the crystal studied have
V. I. Nasirov +2 more
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Journal of the American Chemical Society, 2003
We report the first successful synthesis and characterization of single-crystal wurtzite CdSe nanoribbons through a simple thermal evaporation process. Asymmetric growth of the nanoribbons occurs, yielding a sawlike shape with sharp teeth on one side. This asymmetric growth is suggested to be induced by the polarization of the c-plane in the wurtzite ...
Christopher, Ma +4 more
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We report the first successful synthesis and characterization of single-crystal wurtzite CdSe nanoribbons through a simple thermal evaporation process. Asymmetric growth of the nanoribbons occurs, yielding a sawlike shape with sharp teeth on one side. This asymmetric growth is suggested to be induced by the polarization of the c-plane in the wurtzite ...
Christopher, Ma +4 more
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Conference on Lasers and Electro-Optics-Europe, 1998
During the past two decades, crystal fibres of many materials have been produced by the Laser Heated Miniature Pedestal Growth technique for a very wide range of applications This paper describes altering the refractive index of lithium niobate fibres by the out-diffusion of lithium oxide [1] to obtain fibres with radial extraordinary refractive index ...
Renwick, E. K. +2 more
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During the past two decades, crystal fibres of many materials have been produced by the Laser Heated Miniature Pedestal Growth technique for a very wide range of applications This paper describes altering the refractive index of lithium niobate fibres by the out-diffusion of lithium oxide [1] to obtain fibres with radial extraordinary refractive index ...
Renwick, E. K. +2 more
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Acta Crystallographica Section B Structural Science, 2001
4,6-Dimethoxy-3-methyldihydrotriazine-2-one (1) undergoes a single-crystal to single-crystal reversible phase transformation at 319 K. The low-temperature phase crystallizes in monoclinic space group P21/n with two crystallographically independent molecules in the asymmetric unit.
M, Kaftory +3 more
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4,6-Dimethoxy-3-methyldihydrotriazine-2-one (1) undergoes a single-crystal to single-crystal reversible phase transformation at 319 K. The low-temperature phase crystallizes in monoclinic space group P21/n with two crystallographically independent molecules in the asymmetric unit.
M, Kaftory +3 more
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Reversible single-crystal to single-crystal polymorphic phase transformation of an organic crystal
Chemical Communications, 2010Two polymorphs of a substituted dihydroanthracene derivative were prepared by crystallization from different solvents. Each polymorph is reversibly interconvertible to the other by means of a single-crystal to single-crystal phase transformation.
Das D., Engel E., Barbour L.J.
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Single-crystal-to-single-crystal transformations
CrystEngComm, 2015Panče Naumov, Parimal K. Bharadwaj
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Protein Single Crystal Diffraction
198837 5 Exploitation of the High Intensity and Superior Collimation of SR (with case Studies) . . . . . . . . . . . . . . . . . . . . . . . . . . 39 5.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 5.2 Reduct ion o f Radia t ion Damage . . . . . . . . . . . . . . . . . . 40 5.3 Large Uni t Cells . . . . . . . . . . . . . . . . . . . .
Ian D. Glover +2 more
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