Hogan, M. A.

River gauging by M. A Hogan( Book )
1 edition published in 1925 in English and held by 1 library worldwide

The deterioration of colliery winding ropes in service : with descriptions of some typical failures by S.M Dixon( Book )
1 edition published in 1928 in English and held by 1 library worldwide

Gamma-ray energy pseudospectra for u235 fission products and for various times after fission( Book )
1 edition published in 1965 in English and held by 1 library worldwide
The gamma-ray energy spectrum of U-235 fission products following a nuclear explosion is made up of hundreds of different photon energies whose relative contributions to the spectrum change with time after fission. Gammaradiation attenuation and shielding calculations can be greatly simplified by the use of 'pseudospectra' that closely approximate the attenuation obtained with the 'true' spectra. A technique for computing pseudospectra weighting fractions to obtain such simplified spectra composed of only 5 representative photon energies is described. Pseudospectra weighting fractions and pseudospectra for air and iron attenuation are presented. A flow chart and an IBM-704 computer program of the technique are also presented, along with the input data and examples of the printed output values. Throughout the time range considered (from 1.7 sec to 301 days after fission), the maximum attenuation error is less than plus or minus 5%. The technique is valid for resolving almost any spectral attenuation data into five or fewer energy components, and may be used to solve problems involving five simultaneous equations in five unknowns with prescribed constraints. (Author).

The factor of safety of colliery winding-ropes by M. A Hogan( Book )
1 edition published in 1939 in English and held by 1 library worldwide

Wire ropes research in relation to colliery practice by M. A Hogan( Book )
1 edition published in 1936 in English and held by 1 library worldwide

Mine supports during war time by A. M Bryan( Book )
1 edition published in 1940 in English and held by 1 library worldwide

A survey of government regulations, with particular reference to safety factors (From The Conference on wire ropes in mines) Paper no. 16 by M. A Hogan( Book )
1 edition published in 1950 in English and held by 1 library worldwide

Wire ropes in relation to colliery practice by M. A Hogan( Book )
in English and held by 1 library worldwide

The use of alcohol in solid injection internal combustion engines by M. A Hogan( Book )
in English and held by 1 library worldwide

Report on model estuaries and rivers by M. A Hogan( Book )
in English and held by 1 library worldwide