A library of high-resolution Kurucz spectra in the range λλ3000–10 000     

T. Murphy †  A. Meiksin 《Monthly notices of the Royal Astronomical Society》2004,351(4):1430-1438

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Dust-reddening and gravitational lensing of SDSS QSOs due to foreground damped Lyman α systems     

M. T. Murphy  J. Liske 《Monthly notices of the Royal Astronomical Society》2004,354(2):L31-L36

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Molecular fraction limits in damped Lyman α absorption systems     

S. J. Curran  M. T. Murphy  Y. M. Pihlström  J. K. Webb  A. D. Bolatto  G. C. Bower 《Monthly notices of the Royal Astronomical Society》2004,352(2):563-570

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Inductive electric field of a time-dependent ring current     

C.H. Murphy  C.S. Wang  J.S. Kim 《Planetary and Space Science》1975,23(8):1205-1209

The inductive electric field generated by a time-dependent symmetric ring current has been investigated. The symmetric ring current was modelled by a population of protons drifting in a magnetic dipole field. The interaction of these protons with ion-cyclotron waves was assumed to be the dominant energy loss process for the ring current protons, at least under certain conditions. The calculation, with spectral densities for the ion-cyclotron waves that are based on experimental data, showed that an azimuthal inductive electric field of as much as 0.25 mV/m can be produced by this mechanism. Furthermore there is evidence that if the spectral density of the waves is substantially larger than the one adopted here, the electric field might increase to the order of 1.0 mV/m or more.  相似文献   

Calculated Variations in the H⁺ Content of the Plasmasphere     

J. A. Murphy  G. J. Bailey  R. J. Moffett 《Geophysical Journal International》1975,41(3):319-325

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TOURISM DEVELOPMENT ON VANCOUVER ISLAND: AN ASSESSMENT OF THE CORE-PERIPHERY MODEL *     

Peter E. Murphy  Betty Andressen 《The Professional geographer》1988,40(1):32-42

This paper examines tourism development on Vancouver Island, B.C. in terms of the core-periphery approach to regional planning. It examines whether a core area (Victoria) is willing to share its tourism business with the rest of the island, and then focuses on the situation in a peripheral region (the Cowichan Valley Regional District–CVRD). A discriminant analysis of CVRD residents reveals they have different views regarding tourism's potential and future in their region. A follow-up analysis, reflecting a change in the scale of enquiry and local core-periphery conditions, shows residents'perceptions and priorities will change according to their respective area groupings. This analysis reveals that residents of a peripheral region, who are expected to participate in and welcome tourism development initiatives developed by senior levels of government, will in fact have different opinions regarding the industry and its potential. These differences are linked to present levels of tourism activity within the periphery and the varying community aspirations linking tourism's development potential with local needs and priorities.  相似文献   

Second-Order Correction to the Reed-Otterman Theory     

S. L. Kahalas  B. L. Murphy 《Geophysical Journal International》1971,26(1-4):379-389

Summary The theory of Reed and Otterman, which describes the propagation of a weak shock wave in an inhomogeneous medium, is extended to include the next higher-order term of relative overpressure. This extension allows a matching of theory to initial starting conditions of the shock at a point closer to the source than the Reed-Otterman theory itself. The modified theory gives a value of the shock pressure that agrees well with the numerical calculation performed by Greene and Whitaker for the upward moving shock wave from a low altitude detonation.  相似文献   

Acoustic-Gravity Wave Generation at 120 km Altitude by Sea Level Detonation: A Preliminary Analysis of the Greene-Whitaker Calculation     

S. L. Kahalas  B. L. Murphy 《Geophysical Journal International》1971,26(1-4):391-398

Summary The Greene and Whitaker mechanism for the production of an acoustic- gravity wave in the 100-km region of the ionosphere is discussed from a physical point of view. The shock wave from a low altitude detonation propagates upward and, interacting with the atmosphere in the 100-km region, produces a horizontally propagating acoustic-gravity wave. Several aspects of this phenomenon are discussed. The initial period of the generated waves is in the 200–300 s range, the energy associated with the wave is about 0.3 per cent of the yield, and the wave generated appears to result principally from the refraction of the shock at the 100-km level.  相似文献   

Obituary Robert W. Pennak     

Myron D. Groskopp  Hugh J. Murphy 《Aquatic Sciences - Research Across Boundaries》2004,66(4):i-i

Obituary

Obituary Robert W. Pennak  相似文献   

Spatial distribution of nine metals in surface sediment of an urban estuary prior to a large scale reclamation project     

Buggy CJ  Tobin JM 《Marine pollution bulletin》2006,52(8):969-974

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