Llyfr 50,505 Trafodyn Cynhadledd 8,281 Electronig 3,184 Dogfen y Llywodraeth 1,775 Cylchgrawn 1,512 Cyfresol 904 Traethawd Ymchwil 504 Anhysbys 287 Llawysgrif 18 Deunydd Cyfeirio 15 Cit 13 Papur Newydd 8 Map 7 Llun 3 Erthygl 2 Pennod Llyfr 2 Sain 1 Sgôr Cerddorol 1 Gweld pob un ...

T - Technoleg 53,625

SpringerLink (Online service) 2,015 Institute of Electrical and Electronics Engineers 745 IEEE Xplore (Online service) 609 ebrary, Inc 549 American Society of Mechanical Engineers 505 Center for Intelligent Control Systems (U.S.) 481 ProQuest (Firm) 468 Society of Photo-optical Instrumentation Engineers 366 American Society of Mechanical Engineers Winter Annual Meeting 345 American Society of Mechanical Engineers Heat Transfer Division 328 IEEE Robotics and Automation Society 307 International Federation of Automatic Control 287 United States Department of Energy 275 IEEE Control Systems Society 230 IEEE Industrial Electronics Society 208 International Energy Agency 177 American Society of Mechanical Engineers Winter Meeting 166 Institution of Mechanical Engineers (Great Britain) 160 Society of Automotive Engineers 139 ScienceDirect (Online service) 132 Organisation for Economic Co-operation and Development 120 Electric Power Research Institute 119 Society of Photo-Optical Instrumentation Engineers 115 International Mechanical Engineering Congress and Exposition 114 American Society of Mechanical Engineers Pressure Vessels and Piping Division 113 American Society of Mechanical Engineers Fluids Engineering Division 112 Wiley InterScience (Online service) 112 Massachusetts Institute of Technology Gas Turbine Laboratory 111 Alumni and Friends Memorial Book Fund 109 American Society of Mechanical Engineers Advanced Energy Systems Division 107 Gweld pob un ...

English 47,144 German 2,511 Russian 1,618 French 1,446 Chinese 470 Italian 386 Spanish 351 Japanese 324 Polish 129 Dutch 124 Arabic 81 Portuguese 79 Indonesian 69 Latin 65 Swedish 54 Czech 51 Turkish 51 Romanian 47 Korean 41 Undetermined 39 Multiple 37 Ukrainian 32 Hungarian 30 Greek 22 Vietnamese 22 Croatian 21 Danish 17 Bulgarian 14 Finnish 14 Thai 14 Gweld pob un ...

Congresses 9,713 Conference papers and proceedings 7,353 Electronic books 6,982 Periodicals 1,972 Handbooks, manuals, etc 1,395 History 1,158 Handbooks and manuals 1,058 Technical reports 1,001 Congrès 603 Dictionaries 421 Catalogs 414 Early works to 1800 290 Electronic journals 264 Biography 252 Statistics 242 Pictorial works 234 Early works 218 Tables 203 Juvenile literature 185 Biographies 164 Guides, manuels, etc 160 Directories 144 Problems, exercises, etc 144 Early works to 1850 131 Academic theses 111 Bibliography 110 Popular works 108 Périodiques 108 Electronic book 105 Guides et manuels 103 Gweld pob un ...

20th century 94 Early works to 1800 87 19th century 69 1452-1519 59 Early works to 1850 55 1781-1848 32 21st century 28 1736-1819 27 1900-1999 23 17th century 22 Geschichte 22 To 1500 21 18th century 20 1800-1899 17 1728-1809 16 1858-1913 16 16th century 15 2000-2099 13 1693-1756 12 1800-1999 12 1663-1729 11 1771-1833 10 1910-1974 10 1729-1766 9 1803-1859 9 15th century 8 1808-1890 8 1829-1905 8 1876-1941 8 1661-1751 7 Gweld pob un ...

United States 2,301 Great Britain 484 Germany 280 Soviet Union 200 India 194 France 193 Europe 186 Japan 183 California 173 Developing countries 169 Canada 168 China 166 England 151 Italy 130 European Union countries 89 Russia (Federation) 88 Netherlands 85 New York (State) 74 Indonesia 73 Asia 66 Brazil 66 Sweden 61 Australia 57 Spain 53 South Africa 48 Russia 46 Turkey 44 États-Unis 44 Africa 41 États-Unis 41 Gweld pob un ...