Conical intersection seam comprised of crossing surfaces of two lowest excited states of dimethyl sulfide (DMS) has been directly accessed by the one-photon excitation from the ground equilibrium state. Since the S-C bond rupture takes place promptly, the molecular structure on the excited state effectively belongs to C(S) symmetry. Namely, excited states of 1(1)B1 and 1(1)A2 in C(2)V become 1(...

We describe observations of various transverse instabilities that occur when two laser beams intersect in nonlinear optical liquids. Patterns that we observe include two types of conical emission and the generation of a linear array of spots. These results can be understood in terms of the physical processes of self-diffraction, two-beam-excited conical emission, and seeded modulational instabi...

A “dry” conical soap film on a cubical frame is not stable. Recent experimental evidence seems to indicate that adding liquid to form Plateau borders stabilizes the conical film, perhaps to arbitrarily low liquid fractions. This paper presents numerical simulation evidence that the the wet cone is unstable for low enough liquid fraction, with the critical liquid fraction being about 0.000278.

Abstract Stretch flangeability tests are performed on cold rolled AHSS automotive steel grades for crack sensitivity evaluation. The ISO16630 procedure is used with different cutting edge conditions including clearance, tool wear, angle and hole expansion punch geometry. Among all influence parameters, the clearance considered to be most critical control. Low (<10%) high (>20%) clearances...

Internal conical refraction in biaxial gyrotropic crystals has been studied theoretically. A special case of Gaussian beam conical refraction has been considered comprehensively. The results of numerical simulation agree well with the available experimental data. 2002 Elsevier Science B.V. All rights reserved. PACS: 42.25.Bs; 42.25.Lc; 42.25.Fx; 78.20.Ek; 78.20.Fm

A key feature of the ASTRA TECH Implant System BioManagement Complex is the design of the implant-abutment connection, i.e. the Conical Seal Design. This design feature has been part of the implant system since 1985, thus all clinical documentation available includes results on this key feature. This review includes technical literature focusing on evaluating the Conical Seal Design, using appr...

MURRAY, S. O.-Lancet, Vol. I. p. 328, 1947. NELLEN, M.-Lancet, Vol. I, p. 326, 1947. NICOLAU, MME.-SOC. roumn. d'Oiht., Bucarest, Vol. XVII. p. 6. 1931; Ref. Ann. d'Ocul., Vol. CLXX, p. 351. 1933. NOBL.-Wienter Dermat. Ges., Vol. XIII, p. 2, 1895. Quoted by Chaillous. 0 DONOVAN, W. J. and MICHAELSON, L. C.-Brit.JI. Oplzthal., Vol. XXX, p. 193, 1946. PERCIVAL, 1G. H. and GIBSON, H. I.-Brit. Ji. ...

The photoinduced hydrogen-elimination reaction in pyrrole via the conical intersections of the two 1 * excited states with the electronic ground states B1 * -S0 and A2 * -S0 have been investigated by time-dependent quantum wave-packet calculations. Model potential-energy surfaces of reduced dimensionality have been constructed on the basis of accurate multireference ab initio electronic-structu...

The conical air-void structure of an InGaN light-emitting diode (LEDs) was formed at the GaN/sapphire interface to increase the light extraction efficiency. The fabrication process of the conical air-void structure consisted of a dry process and a crystallographic wet etching process on an undoped GaN layer, followed by a re-growth process for the InGaN LED structure. A higher light output powe...