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Artigo

B. B. Kinsey, G. A. Bartholomew,

The neutron capture $\ensuremath{\gamma}$-rays emitted by the even-charge elements, from titanium to zinc, have been investigated with the ... textpm\fi{}0.006 Mev, are produced by capture in ${\mathrm{Ti}}^{48}$. Neither the direct transition ... intensities of 13 and 35 photons per 100 captures in ${\mathrm{Cr}}^{53}$. The direct transition to ... textpm\fi{}0.004 Mev resulting from neutron capture in ${\mathrm{Fe}}^{56}$. This $\ensuremath{\gamma}$-ray ... Mev) is strong, about 50 photons per 100 captures in ${\mathrm{Fe}}^{54}$. A part of the ...

Tópico(s): Radioactive Decay and Measurement Techniques

1953 - American Institute of Physics | Physical Review

Periodico Acesso aberto Revisado por pares

Directory of Open Access Journals (DOAJ)

Artigo

R.W. Fink, Berol L. Robinson,

... the $K$ and $L$ x-rays following electron-capture in ${\mathrm{Cs}}^{131}$ is reported. The result ... K}$ is the ratio of ${L}_{i}$-shell capture to $K$-shell capture, $n$ is the probability of an $L$-ionization ... combining this with recent theoretical results on electron-capture, the mean value of the $L$-fluorescence yield ... observed anomalies in inner bremsstrahlung spectra of electron-capture on the basis of $p$-electron capture, one must conclude that ${L}_{\mathrm{II}}$-capture is considerably more radiative than ${L}_{\mathrm{I}}$- ...

Tópico(s): X-ray Spectroscopy and Fluorescence Analysis

1955 - American Institute of Physics | Physical Review

Periodico Acesso aberto Revisado por pares

Directory of Open Access Journals (DOAJ)

Primary Document -- Manuscript Acesso aberto

Memorandum on Italian morale covering period from capture of Mogadishu to capture of Keren. Part 2. Italy. 01/04/1941. FO 371/29926-0021. English. PLACE Null. Book.

1941 - Gale Group | ArchivesUnbound Western Europe

Artigo Revisado por pares

C. L. Duddington,

... vet. Fr. 12, 284–8. Deschiens, R. (1939a). Capture et destruction de larves de Strongylidés du singe ... 32, 459–64. Deschiens, R. (1939c). Conditions de capture des larves de Dictyocaules par des Hyphomycétes prédateurs. ... C. (1933c). Morphological features of some fungi that capture and kill nematodes. J. Wash. Acad. Sci. 23, ... 183–9. Drechsler, C. (1944a). Three hyphomycetes that capture nematodes in adhesive networks. Mycologia 36, 138–71. Drechsler, C. (1944b). A species of Arthrobotrys that captures springtails. Mycologia 36, 382–99. Drechsler, C. (1945). ...

Tópico(s): Mycorrhizal Fungi and Plant Interactions

1956 - Wiley | Biological reviews/Biological reviews of the Cambridge Philosophical Society

Periodico Acesso aberto

Directory of Open Access Journals (DOAJ)

Artigo

G. J. Lockwood, H. F. Helbig, Edgar Everhart,

... was necessary to prevent this spreading. Besides electron-capture effects, electron stripping and double capture were also studied, as represented by the ${\mathrm{ ... scattered particles. For this ion-atom combination, electron capture by the ion is a result of resonant charge transfer and the electron capture probability is observed to oscillate when plotted versus incident ion energy. However, the electron-capture probability, which is found to be independent of ... to undergo a transition such that the electron-capture probability oscillates rapidly with angle, and is independent ...

Tópico(s): X-ray Spectroscopy and Fluorescence Analysis

1963 - American Institute of Physics | Physical Review

Artigo

Rob Pratt, B. K. Ridley,

... at 77 °K indicate an increase of the capture rate with field for electrons at singly negatively ... field measurements show the effect directly. Assuming the capture cross section to be of the form AS( ... p = -1. Comparison with work on thermal equilibrium capture cross sections leads to ½ ⩽ q ⩽ 1. Although ... energy of the energy-loss part of the capture cross section precludes the appearance of any distributed ... be 0.084 m0. This indicates that preferential capture of electrons travelling in {111} transverse mass planes ...

Tópico(s): Mass Spectrometry Techniques and Applications

1963 - IOP Publishing | Proceedings of the Physical Society

Artigo

H.P.C. Rood, H.A. Tolhoek,

... photon spectrum and total rate, for radiative muon capture by complex nuclei are studied with the purpose ... that the photon spectrum and the total radiative capture rate are only slightly dependent on the nuclear ... if one considers the ratio to the normal capture rate. Comparisons were made for several approximations and ... wave functions. It is shown that radiative muon capture by nuclei depends strongly on the induced pseudoscalar ... However, the fact that the results for radiative capture depend only slightly on the nuclear model implies ...

Tópico(s): Dark Matter and Cosmic Phenomena

1965 - Elsevier BV | Nuclear Physics

Artigo Acesso aberto Revisado por pares

L Schamroth, Hermann Friedberg,

... non-refractory phase, it is conducted to, and captures control of, the ventricles for one beat-known as a capture beat; occasionally 2, or rarely 3, consecutive capture beats occur.An analogous situation may arise when ... dissociation, with special reference to conduction in consecutive capture beats.A-V DISsOCIATIoN WITH PAIRED CONSECUTIVE CAPTURE BEATS Case 1.The electrocardiogram (Fig. 1) shows ... R4) are premature and represent con- secutive ventricular captures.The next QRS complex is slightly premature (106) ...

Tópico(s): Particle accelerators and beam dynamics

1965 - BMJ | Heart

Artigo Revisado por pares

C. Conley,

... an unstable critical point. I. Oscillating, asymptotic, and capture orbits, J. Differential Equations, 5 (1969), 136–158 ... 4 | 19 May 2021 Cross Ref Transit and capture in the planar three-body problem leveraging low- ... 2021 Cross Ref Design of fuel-saving lunar captures using finite thrust and gravity-brakingActa Astronautica, Vol. ... January 2020 Cross Ref Dynamics of three-dimensional capture orbits from libration region analysisActa Astronautica, Vol. 165 | ... 62 | 1 Sep 2018 Cross Ref Long-term capture orbits for low-energy space missionsCelestial Mechanics and ...

Tópico(s): Aerospace Engineering and Control Systems

1968 - Society for Industrial and Applied Mathematics | SIAM Journal on Applied Mathematics

Artigo

A. I. Namenson, J.C. Ritter,

... investigate the $\ensuremath{\gamma}$ spectra following thermal neutron capture in enriched isotope targets of ${\mathrm{Yb}}^{170}$, ${\ ... 172}$, and ${\mathrm{Yb}}^{174}$. In addition to capture in these isotopes, $\ensuremath{\gamma}$ lines were identified as resulting from thermal capture in ${\mathrm{Yb}}^{171}$ and ${\mathrm{Yb}}^{173}$. ... textpm\fi{}3 keV in all cases. For capture by the even-even isotopes, the energies and intensities of $\ensuremath{\gamma}$ transitions originating from the capture state are presented together with the spins and ...

Tópico(s): Nuclear physics research studies

1969 - American Institute of Physics | Physical Review

Artigo Revisado por pares

Laurence Rosier, C. T. Sah,

The electron thermal emission and capture rates and the electron impact ionization rate of trapped electrons at the sulfur donor centers in the depletion region of reverse ... en−1t by 3 at 200°K. Electron capture coefficients are obtained from capacitance transient during steady ... the surface next to the junction. The electron capture rate at the doubly charged center, cn−2t, ... cm with essentially no temperature dependence. The electron capture rate at the singly ionized centers, cn−1t, ... émission thermique d'électrons et les taux de capture et le taux d'ionisation de percussion d' ...

Tópico(s): Advancements in Semiconductor Devices and Circuit Design

1971 - Elsevier BV | Solid-State Electronics