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Now showing items 1-10 of 34

#### Scattering of two coherent beams by multiple centers

(American Physical Society, 1974-09)

This is a continuation in the theoretical study of scattering initiated by two coherent beams. Here the scattering by multiple independent centers is discussed. The presence of these centers involves some problems, which ...

#### Conservative neutron-transport theory

(AIP Publishing, 1977-02)

A functional analytic development of the Case full_range and half_range expansions for the neutron transport equation for a conservative medium is presented. A technique suggested by Larsen is used to overcome the difficulties ...

#### Multigroup neutron transport. II. Half range

(AIP Publishing, 1976-01)

This paper accompanies a preceding one in which a functional analytic method was used to obtain the full_range expansion in multigoup neutron transport. In the present paper the analysis is extended to obtain the half_range ...

#### Fourier-transform differences and averaged similarities in diatoms

(Optical Society of America, 1979)

Phase contrast photographs of diatoms are characterized from their Fourier transform taken through an optical diffractometer. The system output is placed on line to a PDP11/40 providing digital subtraction of two output ...

#### Multispectral size-averaged incoherent spatial filtering

(Optical Society of America, 1979-08)

A method of 2-D size-averaged incoherent recognition filtering is described. White light input illumination is used to multiplex chromatically a continuum of inputs differing in their spatial Fourier spectral magnifications. ...

#### The relationship between normalization coefficient and dispersion function for the multigroup transport equation

(AIP Publishing, 1976-05)

An explicit formula for the discrete Case normalization coefficient is presented in terms of functions related to the dispersion function. These functions are easily determined and provide the normalization coefficient ...

#### Color coding of spatial frequencies using incoherent optical processing

(Optical Society of America, 1979-10)

An incoherent optical processing technique for color coding the spatial frequency content of an input is described. Experimental results and comparison with the output of a coherent filtering system are discussed. Possible ...

#### Extension of Case formulas to L_{p}. Application to half and full space problems

(AIP Publishing, 1975-05)

The singular eigenfunction expansions originally applied by Case to solutions of the transport equation are extended from the space of Hölder‐continuous functions to the function spaces X p = {f‖μf (μ) ‐ L p }, where the ...

#### A note on the iteration of the Chandrasekhar non-linear H-equation

(AIP Publishing, 1979-04)

An iteration scheme to solve the Chandrasekhar H equation in the form H (_) ={1___F_ 1 0[_ (s) H (s)]/(s +_) d s}_1 is shown to converge monotonically and uniformly.

#### On the spectrum of linear transport operator

(AIP Publishing, 1974-11)

In this paper, spectral properties of the time_independent linear transport operator A are studied. This operator is defined in its natural Banach space L 1(D _ V), where D is the bounded space domain and V is the velocity ...