Now showing items 11-20 of 80
The ground state fundamentals of p-benzoquinone and p-benzoquinone-d4
(Elsevier, 1974-03-30)
The solid state infrared and Raman spectra of p-benzoquinone and several isotopic derivatives are reported and compared with the results of previous solution and vapor phase studies and with the results of previously ...
Specific heat of para-hydrogen monolayers on graphite
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1974-12)
The specific heat of para-hydrogen films has been measured from 1 to 20 K for areal densities between 0.01 and 0.055 atoms/Å 2 of the partial monolayer adsorbed on grafoil. The results are compared with the specific heat ...
Measurements of hyperpolarizabilities for some halogenated methanes
(The American Institute of Physics, 1974-01-15)
dc Electric‐field induced optical second‐harmonic generation has been measured for CH4, CH3F, CH2F2, CHF3, CF4, CClF3, and CBrF3. For CH4 and CF4 the third order hyperpolarizability χ(−2ω; 0,ω,ω) is obtained directly. For ...
Properties of the (: ϕ4 :)1 + 1 interaction Hamiltonian
(The American Institute of Physics, 1974-06)
Using a convergent expansion of the resolvent of the Hamiltonian H = H0+λV,V = ∫ dx×(x):φ4:(x),g(x) ∊ C0∞,g(x) ≥ 0H=H0+λV,V=∫dx×(x):φ4:(x),g(x)∊C0∞,g(x)⩾0, we give a simple proof of (a) the self‐adjointness of the Hamiltonian ...
Quasinormal distributions and expansion at the mode
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1974-09)
The Gram-Charlier series of type A is discussed in terms of deviants which are related to moments in a way similar to the way Hermite polynomials are related to the powers. Distribution functions are also expressed in terms ...
On the connectedness structure of the Coulomb S -matrix
(Springer-Verlag, 1974-09)
The forward direction singularity of the non-relativistic Coulomb S -matrix is examined and discussed. The relativistic Coulomb S -matrix to order α is shown to have a similar singularity.
Classical scattering with long range forces
(Springer-Verlag, 1974-09)
We discuss the classical two-body scattering problem for potentials which decrease at infinity like r −α , 1≧α>0. We prove existence and uniqueness theorems for scattering orbits parametrized by their asymptotic data. Wave ...
Field dependence of nuclear magnetic relaxation of 207Pb in aqueous Pb(ClO4)2
(The American Institute of Physics, 1974-02-15)
Nuclear magnetic relaxation times of the 207Pb resonance have been measured as a function of temperature and concentration at field strengths of 16.9, 11.7, and 6.56 kG in aqueous Pb(ClO4)2. Longitudinal relaxation is ...
Stability of a current‐carrying fluid with a free surface in a transverse magnetic field
(The American Institute of Physics, 1974-06)
The stability of a viscous, incompressible, electrically conducting fluid with a free surface in a transverse magnetic field is investigated. A horizontal layer of fluid is set in motion by the combined action of the ...
Turbulent‐nonturbulent interface detector
(The American Institute of Physics, 1974-09)
An analog circuit is presented for the detection in real time of the turbulent‐nonturbulent interface at the free stream edge of turbulent shear flows. The output of the circuit is a square wave whose value is unity when ...