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Articles 9001 - 9030 of 9034
Full-Text Articles in Entire DC Network
Quasilattice Interpretation Of The Thermodynamic Properties Of Mixing Of Binary Alkali-Metal Systems, J. Bevan Ott, J. Rex Goates
Quasilattice Interpretation Of The Thermodynamic Properties Of Mixing Of Binary Alkali-Metal Systems, J. Bevan Ott, J. Rex Goates
Faculty Publications
Quasilattice theory was applied to heats of mixing in the six systems formed from the binary combinations of Na, K, Rb, and Cs. The alkali-metal systems are particularly well suited for a critical test of the quasi-crystalline assumption since the theoretical model for these systems is relatively simple and the thermodynamic data are fairly complex. Very good fits of the heat-of-mixing data were achieved by assuming that the larger atom in the binary system covered multiple sites on the quasilattice. The values of the empirically determined constants appear to fit the physical significance accorded to them by the quasilattice model. …
What A God!, C. Mervyn Maxwell
Expectation Values Of Simple Correlated Helium-Atom Wavefunctions, Thomas P. Tsien, Russell T. Pack
Expectation Values Of Simple Correlated Helium-Atom Wavefunctions, Thomas P. Tsien, Russell T. Pack
Faculty Publications
In this Note we present the results of a calculation of the expectation values of a number of one- and two electron properties of the ground-state helium atom using two very simple correlated wavefunctions.
New Solutions Of The Einstein-Maxwell Equations From Old, B. Kent Harrison
New Solutions Of The Einstein-Maxwell Equations From Old, B. Kent Harrison
Faculty Publications
Methods are discussed with which one may derive theorems which allow one to generate new solutions of the Einstein-Maxwell equations from old ones. The old solutions used to generate new ones must admit at least one nonnull Killing vector and may be required to satisfy other conditions, depending on the theorem derived. Examples of derivable theorems are shown; these theorems are used in turn to show how generation of new solutions is accomplished. Examples of the latter are shown, such as generation of Brill or electrified NUT space from the Schwarzschild solution, generation of a new twisted Melvin universe from …
Actomyosin-Like Protein Isolated From Mammalian Brain, Donald Dudley Clarke Phd, S. Berl, S. Puszkin, Elena Puszkin
Actomyosin-Like Protein Isolated From Mammalian Brain, Donald Dudley Clarke Phd, S. Berl, S. Puszkin, Elena Puszkin
Faculty Publications
A protein with characteristics similar to actomyosin has been isolated from whole brain of rat and cat. It is soluble in 0.6 molar potassium chloride and insoluble in 0.1 molar potassium chloride. It superprecipitates with magnesium ions and adenosine triphosphate. It has adenosine triphosphatase activity stimulated by either magnesium or calcium ions. Both superprecipitation and adenosine triphosphatase activity are inhibited by p-chloromercuribenzoate and Mersalyl but not by ouabain.
Miller V. Miller: The Safety Belt Defense, John J. Kircher
Miller V. Miller: The Safety Belt Defense, John J. Kircher
Faculty Publications
No abstract provided.
Man, What A God?, C. Mervyn Maxwell
A Method For Measuring Magnetization To High Pressures, C. R. Johansen, Mark H. Nelson, J. H. Gardner
A Method For Measuring Magnetization To High Pressures, C. R. Johansen, Mark H. Nelson, J. H. Gardner
Faculty Publications
A partially successful attempt has been made to measure the magnetic moment per unit volume of ferromagnetic materials as a function of pressure to the 100-kbar region. The apparatus, an early version of which has been described previously, consists basically of two opposed Bridgman flat anvils of alumina. One anvil also acts as a dielectric-filled microwave resonant cavity for an x-band spectrometer, allowing electron spin resonance studies to be made to high pressure. The sample to be studied is placed in contact with the anvil-cavity and covered with a pressure-transmitting medium which in turn is encircled by a flat pyrophyllite …
Very High Pressure Effects Upon The Epr Spectrum Of Ruby, H. Mark Nelson, D. B. Larson, J. H. Gardner
Very High Pressure Effects Upon The Epr Spectrum Of Ruby, H. Mark Nelson, D. B. Larson, J. H. Gardner
Faculty Publications
The variation in the electron paramagnetic resonance (EPR) spectrum of ruby as a function of pressure has been observed to beyond 70 kbar for a magnetic field orientation parallel to the crystalline c axis. The data can be interpreted in terms of the usual spin Hamiltonian, where the spectroscopic splitting factor g|| has the same value as at ambient pressures, but where the zero-field splitting deltaincreases in a linear fashion from 0.38 to 0.43 cm. The experimental apparatus has been described previously, although important improvements in the pressure seal and in the pressure calibration have been made and are described …
The Power Of The Supreme Court In The Age Of The Positive State: A Preliminary Excursus Part Two: On The Need For Adaptation To Changing Reality, Alan Scheflin, Arthur Selwyn Miller
The Power Of The Supreme Court In The Age Of The Positive State: A Preliminary Excursus Part Two: On The Need For Adaptation To Changing Reality, Alan Scheflin, Arthur Selwyn Miller
Faculty Publications
No abstract provided.
Equation Of State Of Sodium Chloride, Daniel L. Decker
Equation Of State Of Sodium Chloride, Daniel L. Decker
Faculty Publications
Because of many requests, I wish to publish the following numerical table of results for the equation of state of NaCl as calculated in an earlier paper1 along with a few comments on various proposed equations for NaCl. Table I gives the pressure in kilobars at the corresponding values of t.a/ao and temperature in the appropriate row and column. The parameter t.a/ao is the fractional compression of the lattice parameter where the standard value ao is the appropriate lattice parameter at zero pressure and 25°C. The increments between the values given in the table were chosen such that one can …
Model Of Electron Correlation In Solids, Everett G. Larson, Walter R. Thorson
Model Of Electron Correlation In Solids, Everett G. Larson, Walter R. Thorson
Faculty Publications
The usual Hartree-Fock model (energy-band theory) does not always give an adequate description of electronic structure in a solid, because it ignores the effects of electron correlation. It was shown first by Wigner that such a situation always develops in an electron ''gas'' at sufficiently low density; a solid structure described by ''resonance'' of Heitler-London pair bonds between electrons localized on neighboring atoms is then a good model of the system.The transition from a Bloch-type state to such a highly correlated state as a function of electron density (lattice parameter) is a problem of considerable interest for the theory of …
Pressure Calibration To 100 Kbar Based On The Compression Of Nacl, R. N. Jeffrey, J. Dean Barnett, H. B. Vanfleet, H. Tracy Hall
Pressure Calibration To 100 Kbar Based On The Compression Of Nacl, R. N. Jeffrey, J. Dean Barnett, H. B. Vanfleet, H. Tracy Hall
Faculty Publications
An independent determination has been made of the transformation pressures assigned to the high-pressure transformations in Ba and Bi which are generally used for calibration points. The metals were imbedded in NaCl, and the transitions were detected by the resistance change of the metal while the NaCl lattice parameter was simultaneously measured by x-ray diffraction. The NaCl compression values determined at the fixed points were related to pressure by reference to the semiempirical compression curve of Decker. The Ba I-II and Bi III-V transformations at room temperature were assigned thermodynamic equilibrium values of 53.3 ±1.2 kbar and 73.8 ±1.3 kbar, …
X-Ray Diffraction Studies On Tin To 100 Kilobars, J. Dean Barnett, Vern E. Bean, H. Tracy Hall
X-Ray Diffraction Studies On Tin To 100 Kilobars, J. Dean Barnett, Vern E. Bean, H. Tracy Hall
Faculty Publications
The high-pressure equilibrium phase diagram of tin is investigated, and the crystal structure of Sn II at 98 kbar and 25degrees C is shown to be body-centered tetragonal with a=3.70 Angstroms, c=3.37 Angstroms, c/a=0.91, and with two atoms per unit cell. The linear compressibility of white tin is given at 25degrees C up to the high-pressure transformation at 92 kbar, and the latent heat of the transformation is measured as 225 cal/g-atom.
Argument To The Jury On Damage Question Should Be Limited, James D. Ghiardi
Argument To The Jury On Damage Question Should Be Limited, James D. Ghiardi
Faculty Publications
No abstract provided.
Equation Of State Of Nacl And Its Use As A Pressure Gauge In High-Pressure Research, Daniel L. Decker
Equation Of State Of Nacl And Its Use As A Pressure Gauge In High-Pressure Research, Daniel L. Decker
Faculty Publications
The pressure as a function of lattice parameter and temperature has been calculated for NaCl over a pressure range of 0 to 500 kbar for temperatures between 0degrees and 1500degrees C. The calculation used the Mie-Gruneisen equation of state with Born-Mayer type repulsion terms between first and second nearest neighbors. The Gruneisen constant was expanded about its value at room temperature and atmospheric pressure; the first coefficient in the expansion being evaluated by forcing the calculated thermal expansion at atmospheric pressure to fit the experimental results of Enck. The two empirical parameters in the repulsion terms were evaluated using the …
Reapportionment: Revisionism Or Revolution?, William F. Swindler
Reapportionment: Revisionism Or Revolution?, William F. Swindler
Faculty Publications
No abstract provided.
A New Pragmatism In Robinson-Patman Interpretations?, George J. Alexander
A New Pragmatism In Robinson-Patman Interpretations?, George J. Alexander
Faculty Publications
No abstract provided.
Diffraction Of Spherical Scalar And Vector Waves At Axial Points Of A Circular Aperture And Disk, Keith Leon Mcdonald
Diffraction Of Spherical Scalar And Vector Waves At Axial Points Of A Circular Aperture And Disk, Keith Leon Mcdonald
Faculty Publications
The following work treats Kottler's saltus problem of diffraction of electromagnetic waves emitted by a Hertzian oscillator source and the analogous Kirchhoff's scalar problem of waves emitted by a point source. The medium is a homogeneous isotropic dielectric. In the vector case a new exact solution of the basic integrals is presented, at axial points only, (a) behind a circular aperture in a "black'' screen, and (b) behind its complementary "black'' disk. The relative time-averaged intensity of energy flow is plotted for the disk only. It is shown that the scalar theory predicts considerably larger values than the electromagnetic theory …
Academic Freedom, Earle Hilgert
A Note On K-Commutative Matrices, D. W. Robinson
A Note On K-Commutative Matrices, D. W. Robinson
Faculty Publications
Let A and B be square matrices over a field in which the minimum polynomial of A is completely reducible. It is shown that A is k commutative with respect to B for some non-negative integer k if and only if B commutes with every principal idempotent of A. The proof is brief, simplifying much of the previous study of k-commutative matrices. The result is also used to generalize some well-known theorems on finite matrix commutators that involve a complex matrix and its transposed complex conjugate.
Personal Problems Of Christian Living: Has God Forgiven Me?, Charles E. Wittschiebe
Personal Problems Of Christian Living: Has God Forgiven Me?, Charles E. Wittschiebe
Faculty Publications
No abstract provided.
Taxation, Joseph Curtis
Taxation, Joseph Curtis
State Regulation Of Interstate Commerce, Charles Harper Anderson
State Regulation Of Interstate Commerce, Charles Harper Anderson
Faculty Publications
No abstract provided.
Relation Of Pre-Legal Studies And Intelligence Tests To Success In Law School, Joseph M. Cormack
Relation Of Pre-Legal Studies And Intelligence Tests To Success In Law School, Joseph M. Cormack
Faculty Publications
No abstract provided.
The Development Of State Statutes On Negotiable Paper Prior To The Negotiable Instruments Law, Frederick K. Beutel
The Development Of State Statutes On Negotiable Paper Prior To The Negotiable Instruments Law, Frederick K. Beutel
Faculty Publications
No abstract provided.
Review Of An Oration, Delivered Before The Two Societies Of The South-Carolina College, N. Beverley Tucker
Review Of An Oration, Delivered Before The Two Societies Of The South-Carolina College, N. Beverley Tucker
Faculty Publications
No abstract provided.
The Present State Of Europe, N. Beverley Tucker
The Present State Of Europe, N. Beverley Tucker
Faculty Publications
No abstract provided.
Gertrude: An Original Novel (Chapters 1-2), N. Beverley Tucker
Gertrude: An Original Novel (Chapters 1-2), N. Beverley Tucker
Faculty Publications
No abstract provided.