LEADER 02298oam 2200589 450 001 9910707153603321 005 20160610072821.0 035 $a(CKB)5470000002461962 035 $a(OCoLC)891382900 035 $a(EXLCZ)995470000002461962 100 $a20140926d1967 ua 0 101 0 $aeng 135 $aurbn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aDebris flow and erosion control problems caused by the ash eruptions of Irazu? Volcano, Costa Rica /$fby Howard H. Waldron 210 1$a[Washington, D.C.] :$cUnited States Department of the Interior, Geological Survey,$d1967. 210 2$aWashington :$cUnited States Government Printing Office. 215 $a1 online resource (iv, 37 pages, 1 page of plates) $cillustrations, maps 225 1 $aGeological Survey bulletin ;$v1241-I 225 1 $aContributions to general geology. 300 $aTitle from title screen (viewed September 15, 2014). 300 $a"Prepared in cooperation with the Oficina de Defensa Civil and Oficina de Planificacio?n de Costa Rica under the auspices of the Agency for International Development, U.S. Department of State." 320 $aIncludes bibliographical references (pages 35-37). 606 $aVolcanoes$zCosta Rica 606 $aErosion$zCosta Rica 606 $aVolcanic ash, tuff, etc$zCosta Rica 606 $aErosion$2fast 606 $aVolcanic ash, tuff, etc$2fast 606 $aVolcanoes$2fast 607 $aCosta Rica$2fast 615 0$aVolcanoes 615 0$aErosion 615 0$aVolcanic ash, tuff, etc. 615 7$aErosion. 615 7$aVolcanic ash, tuff, etc. 615 7$aVolcanoes. 700 $aWaldron$b Howard H$g(Howard Hamilton),$f1917-$01396939 712 02$aGeological Survey (U.S.), 712 02$aCosta Rica.$bOficina de Defensa Civil, 712 02$aCosta Rica.$bOficina de Planificacio?n, 712 02$aUnited States.$bAgency for International Development, 801 0$bCOP 801 1$bCOP 801 2$bOCLCO 801 2$bOCLCF 801 2$bGPO 906 $aBOOK 912 $a9910707153603321 996 $aDebris flow and erosion control problems caused by the ash eruptions of Irazu? Volcano, Costa Rica$93457907 997 $aUNINA LEADER 03652nam 22007092 450 001 9910955799903321 005 20160330144815.0 010 $a1-107-12354-2 010 $a0-511-17713-5 010 $a0-511-30484-6 010 $a0-521-02127-8 010 $a1-280-43336-1 010 $a0-511-53538-4 010 $a0-511-15805-X 010 $a9786610433360 010 $a0-511-04387-2 035 $a(CKB)111087027160438 035 $a(EBL)202312 035 $a(OCoLC)171123471 035 $a(SSID)ssj0000266465 035 $a(PQKBManifestationID)11204497 035 $a(PQKBTitleCode)TC0000266465 035 $a(PQKBWorkID)10304820 035 $a(PQKB)11553995 035 $a(SSID)ssj0000888328 035 $a(PQKBManifestationID)12369839 035 $a(PQKBTitleCode)TC0000888328 035 $a(PQKBWorkID)10846889 035 $a(PQKB)11733234 035 $a(UkCbUP)CR9780511535383 035 $a(MiAaPQ)EBC202312 035 $a(Au-PeEL)EBL202312 035 $a(CaPaEBR)ebr10021337 035 $a(CaONFJC)MIL43336 035 $a(PPN)261329081 035 $a(EXLCZ)99111087027160438 100 $a20090429d2002|||| uy| 0 101 0 $aeng 135 $aur||||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aValence bond methods $etheory and applications /$fGordon A. Gallup 205 $a1st ed. 210 1$aCambridge :$cCambridge University Press,$d2002. 215 $a1 online resource (xv, 238 pages) $cdigital, PDF file(s) 300 $aTitle from publisher's bibliographic system (viewed on 05 Oct 2015). 311 08$a0-521-80392-6 311 08$a0-511-02037-6 320 $aIncludes bibliographical references (p. 231-233) and index. 327 $gPart I.$tTheory and Two-Electron Systems: --$t. Introduction --$tH2 and localised orbitals --$tH2 and delocalised orbitals --$tThree electrons in doublet states --$tAdvanced methods for larger molecules --$tSpatial symmetry --$tVarieties of valence bond treatments --$tPhysics of ionic structures --$gPart II. Examples and Interpretations: --$tSelection of structures and arrangement of bases --$tFour simple three-electron systems --$tSecond row homonuclear diatomics --$tSecond row heteronuclear diatomics --$tMethane, ethane and hybridization --$tRings of hydrogen atoms --$tAromatic compounds --$tInteraction of molecular fragments --$tAppendix. 330 $aValence bond theory is one of two commonly used methods in molecular quantum mechanics, the other is molecular orbital theory. This book focuses on the first of these methods, ab initio valence bond theory. The book is split into two parts. Part I gives simple examples of two-electron calculations and the necessary theory to extend these to larger systems. Part II gives a set of case studies of related molecule sets designed to show the nature of the valence bond description of molecular structure. It also highlights the stability of this description to varying basis sets. There are references to the CRUNCH computer program for molecular structure calculations which is currently available in the public domain. The book will be of primary interest to researchers and students working on electronic theory and computation in chemistry and chemical physics. 606 $aValence (Theoretical chemistry) 615 0$aValence (Theoretical chemistry) 676 $a541.2/24 700 $aGallup$b Gordon A$g(Gordon Alban),$f1927-$01843001 801 0$bUkCbUP 801 1$bUkCbUP 906 $aBOOK 912 $a9910955799903321 996 $aValence bond methods$94423680 997 $aUNINA