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Articles 1 - 9 of 9
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Degnerate Four-Wave Mixing In Rhodamine Doped Epoxy Waveguides, B. Rossi, Hugh Byrne, W. Blau
Degnerate Four-Wave Mixing In Rhodamine Doped Epoxy Waveguides, B. Rossi, Hugh Byrne, W. Blau
Articles
Self-diffraction from laser-induced gratings is observed in a 13 pm-thick film of rhodamine I3 doped epoxy. The decay of the grating is measured to be 2.05 ns. Degenerate forward four-wave mixing in a guided geometry is observed by coupling out all beams after nronagation over 1 mm. At 595 nm the third-order nonlinear susceptibility of the film is measured to be 1.5~10-‘~ m2Ve2.
Broadcasting Law And Broadcasting Policy In Ireland, Wolgang Truetzschler
Broadcasting Law And Broadcasting Policy In Ireland, Wolgang Truetzschler
Articles
No abstract provided.
Self-Pulsation Operating Regime For The Absorber Of A Twin Section Laser Diode, Gerald Farrell, P. Phelan, Joe Hegarty
Self-Pulsation Operating Regime For The Absorber Of A Twin Section Laser Diode, Gerald Farrell, P. Phelan, Joe Hegarty
Articles
The voltage-current characteristic of the absorber of a twin section laser diode is investigated as a function of the gain section current. For self pulsation to occur the absorber must be operated within a specific region of the voltage-current characteristics. This region only exists for absorber voltage current characteristics which contain an S-shaped negative resistance.
The Jobs Forum: Its Eventual Arrival?, Anto Kerins
Maireann Rose Fós (Nó Seal I Meac Na Gkennedys), Máirtín Mac Con Iomaire
Maireann Rose Fós (Nó Seal I Meac Na Gkennedys), Máirtín Mac Con Iomaire
Articles
Cur síos ar eachtra a thárla i Samhraidh 1988 nuair a chaith mé tréibhse ag obair do chlann Kennedy in Hyannisport, Mheirceá.
Shadow Casting Phenomena At Newgrange, Frank Prendergast
Shadow Casting Phenomena At Newgrange, Frank Prendergast
Articles
A digital model of the Newgrange passage tomb and surrounding ring of monoliths known as the Great Circle is used to investigate sunrise shadow casting phenomena at the monument. Diurnal variation in shadow directions and lengths are analysed for their potential use in the Bronze Age to indicate the passage of seasonal time. Computer-aided simulations are developed from a photogrammetric survey to accurately show how three of the largest monoliths, located closest to the tomb entrance and archaeologically coded GC1, GC-1 and GC-2, cast their shadows onto the vertical face of the entrance kerbstone, coded K1. The phenomena occur at …
Kíla: Éacht!!! Ag Féile Gormacha Tuaithe An Chlocháin '91, Máirtín Mac Con Iomaire .
Kíla: Éacht!!! Ag Féile Gormacha Tuaithe An Chlocháin '91, Máirtín Mac Con Iomaire .
Articles
Léarmheas ar an mbanna ceoil Kíla agus ar Féile gormacha agus tuaithe an Chlocháin '91.
Striopachas Na Bhfear I Londain, Máirtín Mac Con Iomaire
Striopachas Na Bhfear I Londain, Máirtín Mac Con Iomaire
Articles
Gearscéal faoi leads Éireanach ag díol a gcorp ar Cricklewood Broadway.
On Separable Torsion- Free Modules Of Countable Density Character, R. Gobel, Brendan Goldsmith
On Separable Torsion- Free Modules Of Countable Density Character, R. Gobel, Brendan Goldsmith
Articles
The endomorphism algebras of modules of large cardinalities have been extensively studied in recent years using the combinatorial set-theoretic techniques of Shelah-the so-called black-box methods (see, e.g., [4, 5, 151). Despite the spectacular success of these methods, they are not suitable for realization theorems at small carinalities. Of course at the level of countability (or rather more generally for cardinals ~2’~) there are in some cases the original dramatic results of A. L. S. Corner [ 1, 2, 31 and the more recent generalizations of Gobel and May [ 111. Very recently the study of realization problems at cardinalities