-
Article
Sensitive flame-photometric-detector analysis of thiodiglycolic acid in urine as a biological monitor of vinyl chloride
A simple and selective method to detect thiodiglycolic acid (TdGA) in urine by flame-photometric-detector (FPD) of gas chromatograph (GC) is described. The detection limit of this method is less than 1 ng with...
-
Article
Distribution of free and conjugated ecdysteroids between follicle cell sheath and ooplasm in oocytes of the cockroachNauphoeta cinerea
It is shown that both follicle cell sheath and ooplasm contain only small quantities ofHelix-hydrolyzable ecdysteroid conjugates and that 20-hydroxy-ecdysone is the predominant free ecdysteroid. Its concentration...
-
Chapter and Conference Paper
Relating the JPL VLBI Reference Frame and the Planetary Ephemerides
A series of VLBI observations of planet-orbiting spacecraft and angularly nearby quasars has provided an estimate of the relative orientation of the JPL VLBI reference frame and the ephemeris frame of the inne...
-
Article
Buckling analysis of discretely stiffened composite curved panels under compression and shear
An analytical method for the buckling discretely thin-wall stiffened composite curved panels under compression and shear is presented by use of finite strip-element method.
-
Article
Evaluation of the central retina and optic nerve function in media opacities
Conventional electroretinogram (ERG) and pattern VECP (or visual evoked cortical potential) are of limited value in estimating visual function in eyes with media opacities. We used a method consisting of flick...
-
Chapter
Strip** of Thread in Bone by Commercial Cortical Self-Tap** and Pretapped Screws
In internal fixation, screws are used to compress a fracture and/or to fix a plate to bone. In either case their function depends on strong and sustained anchorage within the bone. Screws are usually inserted ...
-
Article
An investigation of concentration variations of trace elements during storage of natural water samples
Contamination and adsorption of trace elements during storage of natural water samples in polyethylene containers have been studied. Variations of concentrations of 29 elements in pH=1.5 natural water samples ...
-
Article
Numerical representation of planetary ephemerides
The Jet Propulsion Laboratory provides high-precision numerically integrated planetary and lunar ephemerides in support of spacecraft navigation and other activities relating to solar system bodies. Hundreds o...
-
Article
Electron tunneling into thin films of Y1Ba2Cu3O7
We have fabricated tunnel junctions on thin films of Y1Ba2Cu3O7 which were epitaxially grown by magnetron sputtering on (100) and on (110) oriented SrTiO3 substrates. These junctions of the type Y1Ba2Cu3O7/barrie...
-
Article
High-T c superconductivity in the Bi-Sr-Ca-Cu-O system
Superconductivity with transitions near 80 K and 110 K has been observed in sintered samples of the system Bi−Ca−Sr−Cu−O. The samples were prepared from mixed powders of the oxides or carbonates of the metalli...
-
Article
Characterization of doped Nd-based superconductors
Y-, Dy-, and Gd-doped neodymium (Nd) superconductors (RE0.1Nd0.9Ba2-Cu3Oy) exhibited sharp resistivity transitions at 92 K. DC susceptibility measurements gave a common curve with diamagnetic onsets at 93 K and t...
-
Chapter and Conference Paper
Numerical Representation of Planetary Ephemerides
The Jet Propulsion Laboratory provides high-precision numerically integrated planetary and lunar ephemerides in support of spacecraft navigation and other activities relating to solar system bodies. Hundreds o...
-
Article
Superconducting and structural properties of YBaCuO thin films deposited by inverted cylindrical magnetron sputtering
Thin films of YBaCuO have been deposited onto Al2O3, MgO, SrTiO3 and ZrO2 substrates by inverted cylindrical magnetron sputtering. The main advantage of this preparation technique is the high reproducibility of t...
-
Article
Chinese Journal of Clinical Anatomy Abstracts vol 7, issue 4, 1989
-
Article
Notch root strain and stress distributions in power hardening materials
Based on the results of an elastoplastic analysis for a pure bending V-notched bar, computations of the effective plastic strains at 11 hardening exponents are carried out. It is found that a further modified ...
-
Article
Ion Beam Modification of High-Tc Superconductors
Ion irradiation and implantation experiments of high temperature superconductors (HTSC) thin films resulted in many interesting effects. Among those are: (i) the superlinear increase of the resistivity, p, wit...
-
Article
High Critical Current Density in Ultrathin Ybco Films
Measurements of the critical current density Jc for ultrathin YBa2Cu307-X (YBCO) films are presented.A high Jc value at 77K in zero field of 2xl06A/cm2 was obtained in a 30nm thick film and even a 5nm thick film ...
-
Article
Fabrication of Yy-Pr1-y -Ba-Cu-O Thin Films and Superlattices of -Ba-Cu-O/Yy-Pr1-y -Ba-Cu-O
We have prepared epitaxial thin films of Yy-Pr1-y-Ba-Cu-O (y= 1 to 0) and superlattices of Y-Ba-Cu-O/Yy-Pr1-y -Ba-Cu-O using pulsed laser deposition technique. The zero resistance transition temperatures of Yy-Pr
-
Chapter
Growth Analysis and Properties of Sputter-Deposited YBaCuO Thin Films
Thin films of YBaCuO have been deposited in situ by inverted cylindrical magnetron sputtering in a two step procedure, i.e. deposition at elevated temperature and cooling in oxygen atmosphere. The growth of th...
-
Article
Dielectric function of YBa2Cu3O7-δ between 50 meV and 50 eV
Electronic excitations with polarization parallel to the CuO2-planes in single-crystalline YBa2Cu3O7 and YBa2Cu3O6 have been investigated by optical reflectance and by highenergy electron energy-loss spectroscopy...
