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Noise design of active feedback resonator BEF
IEEE Transactions on Microwave Theory and Techniques, 1993It is shown that, in a filter design system which introduces noise temperature into the active feedback resonator (AFR), the AFR band elimination filter (BEF) can be designed using techniques for the conventional passive BEF. In this system, the passive BEF circuit used for electrical design is also useful for the noise analysis of the AFR BEF.
Y. Ishikawa, S. Yamashita, S. Hidaka
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Journal of Molecular Spectroscopy, 1995
Abstract A strong emission source of BeF spectra has been developed and the B 2 Σ + - X 2 Σ + and C 2 Σ + - X 2 Σ + band systems in the region 190-210 nm have been photographed at high resolution. The 0-0, 1-0, 2-1, and 3-2 bands of the B 2 Σ + - X 2 Σ + system and the 0-0, 1-0, 1-1, 2-1, 2-2, and 3-2 bands of the C 2 Σ + - X 2 Σ ...
G. Tai, R.D. Verma
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Abstract A strong emission source of BeF spectra has been developed and the B 2 Σ + - X 2 Σ + and C 2 Σ + - X 2 Σ + band systems in the region 190-210 nm have been photographed at high resolution. The 0-0, 1-0, 2-1, and 3-2 bands of the B 2 Σ + - X 2 Σ + system and the 0-0, 1-0, 1-1, 2-1, 2-2, and 3-2 bands of the C 2 Σ + - X 2 Σ ...
G. Tai, R.D. Verma
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A theoretical study of the molecules BeF and BeF+in their lowest-lying electronic states
Molecular Physics, 1992The two lowest-lying electronic states of the BeF molecule and the four lowest-lying electronic states of the ion BeF+ are described theoretically using the multi-reference single and double excitations configuration interaction approach. This description includes the calculation of potential energy curves, dissociation energies, vibrational energies ...
F.R. Ornellas +2 more
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2023
La crescita esponenziale della popolazione costringe a mettere in discussione gli attuali sistemi alimentari sia in termini di produzione e distribuzione sia di gestione dei sottoprodotti. In questo volume, la ricerca in design sistemico per la valorizzazione del territorio incontra la nicchia di innovazione delle filiere insettifere, indagando le ...
Padula, Cecilia, Pavese, Pietro
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La crescita esponenziale della popolazione costringe a mettere in discussione gli attuali sistemi alimentari sia in termini di produzione e distribuzione sia di gestione dei sottoprodotti. In questo volume, la ricerca in design sistemico per la valorizzazione del territorio incontra la nicchia di innovazione delle filiere insettifere, indagando le ...
Padula, Cecilia, Pavese, Pietro
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Binding of an electron to a molecular dipole: BeF
International Journal of Quantum Chemistry, 1978AbstractResults of extended‐basis SCF calculations indicate that BeF may exist as a metastable species. Comparison of results obtained from SCF calculations on neutral BeF2 with those of BeF shows that the orbital occupied by the electron of BeF is well approximated by the lowest unoccupied molecular orbital of neutral BeF2.
Barbara A. B. Seiders +2 more
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BEF Analogy for Analysis of Box Girders
Journal of the Structural Division, 1968An analysis for a box girder cell with deformable cross section and flexible interior diaphragms is developed using an analogy to the theory of beams on elastic foundations. The analogy gives a clear view of the effects of box girder and diaphragm proportions on the longitudinal warping and transverse flexural stresses induced by deformation of the ...
Richard N. Wright +2 more
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