The mobile micro-architecture of dermal collagen: A bio-engineering study
T Gibson, R M Kenedi, J E Craik; The mobile micro-architecture of dermal collagen: A bio-engineering study, British Journal of Surgery, Volume 52, Issue 10
Materials Literature
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The Polycondensation of Phenylsilanetriol
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Polycondensation of PhenylsilanetriolJohn F. Brown Jr.Cite this: J. Am. Chem. Soc. 1965, 87, 19, 4317–4324Publication Date (Print):October 1, 1965Publication History Published online1 May 2002Published inissue 1 October 1965https://pubs.acs.org/doi/10.1021/ja00947a017htt…
The Polycondensation of Cyclohexylsilanetriol
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Polycondensation of CyclohexylsilanetriolJohn F. Brown Jr. and Lester H. Vogt Jr.Cite this: J. Am. Chem. Soc. 1965, 87, 19, 4313–4317Publication Date (Print):October 1, 1965Publication History Published online1 May 2002Published inissue 1 October 1965https://pubs.acs.org…
Crystal Structure and a Unique ``Martensitic'' Transition of TiNi
Through single-crystal x-ray diffraction methods, the crystal structure of TiNi has been determined in the temperature range −70° to 900°C. Contrary to what has been assumed from previous work based on the powder pattern methods, the TiNi crystal structure is not a simple CsCl type. Rather, it has an a0=9Å superlattic…
Dislocation Dynamics and Dynamic Yielding
The dislocation dynamics of Gilman and Johnston are applied to the problem of elastic—plastic flow in Armco iron at very high strain rates. The dislocation velocity is assumed to follow the law v=v∞ exp(−τ0/τ); experimental data support this form of dependence and are used to determine the value of τ0. This value is i…
POLYELECTROLYTE COMPLEXES
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPOLYELECTROLYTE COMPLEXESAlan S. MichaelsCite this: Ind. Eng. Chem. 1965, 57, 10, 32–40Publication Date (Print):October 1, 1965Publication History Published online1 May 2002Published inissue 1 October 1965https://pubs.acs.org/doi/10.1021/ie50670a007https://doi.org/10.1021/ie…
Spectroscopic Properties of Rare Earths
"Spectroscopic Properties of Rare Earths." Optica Acta: International Journal of Optics, 12(4), p. 413
A New Theory of Wood’s Anomalies on Optical Gratings
A new theory of Wood’s anomalies is presented which is based on a guided wave approach rather than the customary multiple scattering procedure. This approach provides both new insight and a method of calculation. It is shown that two distinct types of anomalies may exist: a Rayleigh wavelength type due to the emergenc…
Interspecimen Comparison of the Refractive Index of Fused Silica*,†
The index of refraction of optical quality fused silica (SiO2) was determined for 60 wavelengths from 0.21 to 3.71 μ at 20°C. The dispersion equation n2-1=0.6961663λ2λ2-(0.0684043)2+0.4079426λ2λ2-(0.1162414)2+0.8974794λ2λ2-(9.896161)2.where λ is expressed in microns was found to yield an absolute residual of 10.5×10−6…
Nowackiite, a new copper zinc arsenosulfosalt from Lengenbach (Binnatal, Kanton Wallis)
Es wird die Beschreibung eines neuen Kupfer-Zink-Arsensulfosalzes aus dem Lengenbach gegeben. Das Mineral ist rhomboedrisch (Raumgruppe R3 oder R3¯), von der Zusammensetzung Cu6Zn3As4S12-13 (Mikrosonde, Typ Cameca MS 85) und vermutlich vom Zinkblendetypus.
Theoretical Relationship between Surface Tension and Cohesive Energy Density
The rigid-sphere theory of liquids is shown to yield an expression for the surface tension of a one-component liquid which is essentially identical to an expression previously derived by the author employing a qualitative approach. Such a correlation suggests that the rigid-sphere theory of liquids approach is applica…
Free-Ion and Crystalline Spectra of Pr3+ (Pr IV)
The spectrum of the free tripositive praseodymium ion (Pr IV) has been obtained under high resolution between 1200 Å and the infrared. The analysis has yielded all 49 levels of the four lowest configurations 4f2, 4f5d, 4f6s, 4f6p. A comparison with the crystal levels of Pr3+ in various lattices shows a depression of u…
Electric and Magnetic Properties of the Strontium Ferrates
A series of strontium ferrate compositions ranging from SrFeO2.7 to SrFeO3.0 have been produced by equilibration at oxygen pressures ranging from 0.2 to 855 atm. The stoichiometric composition SrFeO3.0 exhibits a simple cubic perovskite structure (a=3.850 Å). Ceramic disks of this material are conductive (ρ≈10−3 Ω·cm)…
Mössbauer Effect in Ferroelectric BaTiO3
The M\"ossbauer effect for ${\mathrm{Fe}}^{57m}$ in the BaTi${\mathrm{O}}_{3}$ lattice has been studied from 300 to 1200\ifmmode^\circ\else\textdegree\fi{}K with particular emphasis on the region near the Curie temperature. The M\"ossbauer probe seems to serve as a useful tool for the study of ferroelectrics. The elec…
Thermal Expansion of a Uranium Monocarbide—Zirconium Monocarbide Solid Solution
The thermal expansion of a polycrystalline (U0.30, Zr0.70)C0.97 solid solution was determined between 25° and 982°C by means of a high-temperature x-ray diffraction technique. For the range 25° to 1000°C the average linear thermal-expansion coefficient is 7.78×10−6/°C. The 25°C lattice parameter is 4.7822 Å, the calcu…
The infrared spectra of the solid phases in the system BeO-H2O
Chemical and structural information relating to the BeO-H2O system is discussed and correlated. The infrared spectra of α, β, and amorphous Be(OH)2 have been studied in the range 650 to 10,000 cm-1. These show that the constitution of the three hydroxides is similar. The spectra are interpreted to arise from the coupl…
A wide-range (up to 1010 P) rotating cylinder viscometer
1~he ra nge of a hi g h temperature rota Ling cylinde r v iscometer has bee n extended so t hat VISCOSIty m easuremen.ts can be m ad e betwee n 10 0 to 10 10 p oises to within 2-p ercen t a ccuracy. ThiS lllvolves three different tec hniques . After a calibration consta nt has been determined for the apparatus III the…
Exsolution of β‐Ga 2 O 3 Crystalline Solutions in the System MgAl 2 O 3 ‐Ga 2 O 3
The subsolidus phase equilibrium diagram for the pseudobinary join MgAl 2 O 4 ‐Ga 2 O 3 was determined. The shape of the exsolution boundary was obtained by heat‐treating samples pre‐ equilibrated at 1600°C. Crystalline solubility of Ga 2 O 3 in MgAl 2 O 4 decreased from 73 mole % at 1600°C to 55 mole % at 1200°C. The…
THE FEIST SYNTHESIS OF PYRROLE-3-CARBOXYLIC ESTERS
not available
Non-Woven Fabrics. Part VI
Measurements of lateral contraction in the plane of the sheet and of changes in thickness were made on cross-laid and random-laid bonded-nber fabrics subjected to a tensile stress either parallel or at right angles to the machine direction. From these measurements, the corresponding changes in volume were derived. The…