Results 241 to 250 of about 31,026 (271)
Some of the next articles are maybe not open access.
Powder Technology, 1981
Abstract The definition of powder particle shape has been described both verbally and mathematically for relatively simple geometrical shapes. The analysis of more complex particle shapes has only been achieved mathematically. In this study we report a method for classifying re-entrant and non-re-entrant particle shapes, both mathematically and in ...
J.N. Staniforth, J.E. Rees
openaire +1 more source
Abstract The definition of powder particle shape has been described both verbally and mathematically for relatively simple geometrical shapes. The analysis of more complex particle shapes has only been achieved mathematically. In this study we report a method for classifying re-entrant and non-re-entrant particle shapes, both mathematically and in ...
J.N. Staniforth, J.E. Rees
openaire +1 more source
Liquid Crystals, 1996
Abstract We have investigated the behaviour of chiral carbohydrate-based trioxadecalines with a cyano group in mixed systems. The mixture of a trioxadecaline having a Ch phase and a trioxadecaline having a Ch, SA and a S∗Cphase sequence induces a re-entrant TGBA and Ch phase. Below the stabilized S∗C phase, a re-entrant Ch phase is observed.
Volkmar Vill +2 more
openaire +1 more source
Abstract We have investigated the behaviour of chiral carbohydrate-based trioxadecalines with a cyano group in mixed systems. The mixture of a trioxadecaline having a Ch phase and a trioxadecaline having a Ch, SA and a S∗Cphase sequence induces a re-entrant TGBA and Ch phase. Below the stabilized S∗C phase, a re-entrant Ch phase is observed.
Volkmar Vill +2 more
openaire +1 more source
Queueing Systems, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +2 more sources
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +2 more sources
Pathophysiology of re-entrant dysrhythmias
European Heart Journal, 1984Re-entry was demonstrated as a self-perpetuating mechanism as early as 1906. It may lead to single-cycle electrocardiographic phenomena as well as reciprocating tachycardias. Factors favouring re-entry are as follows. Unidirectional or temporary local block of conduction, a mechanism always involved in initiation of reciprocating rhythms but also of ...
openaire +2 more sources
Atrioventricular Nodal Non Re-Entrant Tachycardia (AVNNT)
Heart, Lung and Circulation, 2017Heart, Lung and Circulation - In Press.Proof corrected by the author Available online since mercredi 19 octobre ...
Hariharan, Sugumar +5 more
openaire +2 more sources
Atrioventricular re-entrant tachycardia
2018Atrioventricular (AV) re-entrant tachycardia (AVRT) is a type of supraventricular tachycardia, manifesting most commonly as a regular, narrow-QRS-complex tachycardia. It is usually a paroxysmal tachycardia, and is dependent upon the presence of an accessory electrical connection located between the atria and the ventricles (distinct and separate from ...
Michael Jones +2 more
openaire +1 more source
1983
The discovery of resistivity minima in metals at low temperatures dates back some fifty years, and yet the evolution of a successful theoretical account of the basic anomaly continues to this date. Originally observations1 on Mg, Mo, Te, Co and Pd yielded dramatic departures from the expected resistivity variation $$\rho (T) = {\rho _0} + B{T^5},$$
openaire +1 more source
The discovery of resistivity minima in metals at low temperatures dates back some fifty years, and yet the evolution of a successful theoretical account of the basic anomaly continues to this date. Originally observations1 on Mg, Mo, Te, Co and Pd yielded dramatic departures from the expected resistivity variation $$\rho (T) = {\rho _0} + B{T^5},$$
openaire +1 more source
Re-entrant Hysteresis Loop Tracer
Review of Scientific Instruments, 1967A simple method has been developed for displaying and measuring the important features of re-entrant hysteresis loops of ferromagnetic wires. A conventional ac loop tracer is modified by the addition of a pulse generator and an extra coil coaxial with the specimen.
R. Wolfe, S. E. Haszko
openaire +1 more source
Re-entrant ferrimagnetism in TbMn6Ge6
Journal of Magnetism and Magnetic Materials, 1995Abstract The magnetic ordering of the hexagonal compound TbMn 6 Ge 6 has been studied by neutron diffraction at various temperatures between 1.8 and 500 K. In almost the whole magnetically ordered regime the magnetic structures are incommensurate with the crystal lattice.
P. Schobinger-Papamantellos +3 more
openaire +1 more source
12th Thermophysics Conference, 1977
This paper describes theoretical and experimentally verified heat pipe characteristics of an axially grooved aluminum extrusion with a re-entrant groove profile. The extrusion is 13 mm diameter with 20 axial grooves, each groove consisting of a nominal .8 mm diameter channel with a .2 mm wide passageway connecting the channel to the hollow core.
W. HARWELL, W. KAUFMAN, L. TOWER
openaire +1 more source
This paper describes theoretical and experimentally verified heat pipe characteristics of an axially grooved aluminum extrusion with a re-entrant groove profile. The extrusion is 13 mm diameter with 20 axial grooves, each groove consisting of a nominal .8 mm diameter channel with a .2 mm wide passageway connecting the channel to the hollow core.
W. HARWELL, W. KAUFMAN, L. TOWER
openaire +1 more source