Results 241 to 250 of about 1,374,449 (299)
Some of the next articles are maybe not open access.
Proceedings of the 6th ACM international symposium on Advances in geographic information systems, 1998
We address the problem of designing compact data structures for encoding a Triangulated Irregular Network (TIN) as a sequential bitstream. In particular, we study the problem of compressing connectivity, i.e., the information describing the topological structure of the TIN and we propose two new compression methods which have different purposes.
De Floriani L., Magillo P., Puppo E.
openaire +1 more source
We address the problem of designing compact data structures for encoding a Triangulated Irregular Network (TIN) as a sequential bitstream. In particular, we study the problem of compressing connectivity, i.e., the information describing the topological structure of the TIN and we propose two new compression methods which have different purposes.
De Floriani L., Magillo P., Puppo E.
openaire +1 more source
2011
A class of broadly fictionalist and arealist objections (by Balaguer, Maddy, and others) to the indispensability argument for mathematical realism denies that indispensability entails realism. This paper argues that these objections fail against Putnam’s version of the argument: scientists indispensably use mathematics to draw conclusions about ...
openaire +1 more source
A class of broadly fictionalist and arealist objections (by Balaguer, Maddy, and others) to the indispensability argument for mathematical realism denies that indispensability entails realism. This paper argues that these objections fail against Putnam’s version of the argument: scientists indispensably use mathematics to draw conclusions about ...
openaire +1 more source
Tin Mössbauer spectroscopy of tin-rich iridium-tin alloys
Hyperfine Interactions, 1988Ir5Sn7, Ir3Sn7 and newly obtained IrSn4 /4/ exhibit complex Mossbauer spectra. The positions of the individual lines range from 0.82 to 3.0 mm/s and the average isomer shift\(\overline {IS} \) derived for each compound of Sn atomic percentage x follows the relationship:\(\overline {IS} = 0.60 + 0.0194 x\).
P. Bussière, K. Lázár
openaire +1 more source
Riedel singularity in tin-tin oxide-tin tunnel junctions
Journal of Low Temperature Physics, 1976The Riedel peak in the Josephson supercurrent in Sn-Sn oxide-Sn tunnel junctions has been investigated by studying the amplitudes of microwave-induced steps. At low temperatures, the peak rises to a value approximately 2.8 times the zero-voltage supercurrent amplitude.
S. A. Buckner, D. N. Langenberg
openaire +1 more source
1990
Abstract Tin is produced from both primary and secondary sources. This article discusses the chemical compositions, production, properties, microstructure and applications of tin and tin alloys. The major tin alloys discussed here are tin-antimony-copper alloy (pewter), bearing alloy, solder alloy and other alloys containing traces of ...
openaire +1 more source
Abstract Tin is produced from both primary and secondary sources. This article discusses the chemical compositions, production, properties, microstructure and applications of tin and tin alloys. The major tin alloys discussed here are tin-antimony-copper alloy (pewter), bearing alloy, solder alloy and other alloys containing traces of ...
openaire +1 more source
Corrosion of Tin and Tin Alloys
2005Abstract This article describes the allotropic modification and atmospheric corrosion of pure tin. Corrosion of pure tin due to oxidation reaction, and reaction with the other gases, water, acids, bases, and other liquid media, is discussed.
openaire +1 more source
Palladium-catalysed addition of tintin and tinsilicon bonds to allenes
Journal of Organometallic Chemistry, 1991Abstract Hexamethyl- hexaethyl- and hexabutyl-ditin add to a variety of allenes in the presence of Pd(PPh34; the reaction is reversible. Trimethylsilyltrimethyl- and tributyl-stannane also add under comparable conditions, the silyl moiety becoming attached to the central carbon atom of the allene skeleton; this reaction is, however, apparently not ...
Terence N. Mitchell, Ulrich Schneider
openaire +1 more source
Activation of boron–boron, tin–silicon, and tin–tin bonds
2017This thesis focuses on the activation of interelement bonds of boron, silicon and tin. The first part of this thesis describes the activation of the diboron bonds via oxidative addition of boron−boron bonds to low valent platinum(0) catalysts. The transfer of this activated diboron species to unsaturated carbon−carbon bonds is well established in the ...
openaire +2 more sources