@article{Alt1978, author = {Alt, Helmut}, title = {Tabellenfreie Berechnung der Einkommensteuer mit Hilfe des programmierbaren Taschenrechners}, series = {Elektrizit{\"a}tswirtschaft}, volume = {77}, journal = {Elektrizit{\"a}tswirtschaft}, publisher = {VWEW-Energieverlag}, address = {Frankfurt/Main}, issn = {0013-5496}, pages = {486 -- 489}, year = {1978}, language = {de} } @article{Alt1978, author = {Alt, Helmut}, title = {Wirtschaftlichkeit von Investitionen}, series = {Elektrizit{\"a}tswirtschaft}, volume = {77}, journal = {Elektrizit{\"a}tswirtschaft}, number = {3}, publisher = {VWEW-Energieverlag}, address = {Frankfurt/Main}, issn = {0013-5496}, pages = {73 -- 76}, year = {1978}, language = {de} } @article{Alt1979, author = {Alt, Helmut}, title = {Isolierte Freileitungen, ein Betriebsmittel f{\"u}r schwierige Trassenf{\"u}hrung}, series = {Elektrizit{\"a}tswirtschaft}, volume = {Jg. 78}, journal = {Elektrizit{\"a}tswirtschaft}, number = {H. 10}, issn = {0013-5496}, pages = {250 -- 256}, year = {1979}, language = {de} } @article{Alt1980, author = {Alt, Helmut}, title = {Kurzschlußstromberechnung}, series = {Elektrizit{\"a}tswirtschaft}, volume = {Jg. 79}, journal = {Elektrizit{\"a}tswirtschaft}, number = {H. 10}, issn = {0013-5496}, pages = {379 -- 382}, year = {1980}, language = {de} } @article{Alt1981, author = {Alt, Helmut}, title = {Wirtschaftlichkeitsberechnung von Investitionen mit dem programmierbaren Taschenrechner}, series = {3 R international : RRR ; Rohre, Rohrleitungsbau, Rohrleitungstransport}, volume = {Jg. 20}, journal = {3 R international : RRR ; Rohre, Rohrleitungsbau, Rohrleitungstransport}, number = {H. 10}, issn = {0340-3386}, pages = {561 -- 565}, year = {1981}, language = {de} } @article{Alt1982, author = {Alt, Helmut}, title = {Statische oder dynamische Wirtschaftlichkeitsberechnung bei Investitionen zur Energieeinsparung}, series = {Elektrow{\"a}rme international Edition B: Industrielle Elektrow{\"a}rme : IEW = Industrial applications of electro-heat : EWI ; Zeitschrift f{\"u}r das gesamte Gebiet der Elektrow{\"a}rme in Industrie, Gewerbe und Haushalt}, volume = {Jg. 40}, journal = {Elektrow{\"a}rme international Edition B: Industrielle Elektrow{\"a}rme : IEW = Industrial applications of electro-heat : EWI ; Zeitschrift f{\"u}r das gesamte Gebiet der Elektrow{\"a}rme in Industrie, Gewerbe und Haushalt}, number = {H. 3/4}, issn = {0340-3521}, pages = {166 -- 172}, year = {1982}, language = {de} } @article{Alt1983, author = {Alt, Helmut}, title = {Einsatz programmierbarer Rechner im Sondervertragskundenbereich der Gasversorgung}, series = {Das Gas- und Wasserfach : Ausgabe Gas, Erdgas : GWF}, volume = {Bd. 124}, journal = {Das Gas- und Wasserfach : Ausgabe Gas, Erdgas : GWF}, number = {H. 9}, issn = {0016-4909}, pages = {468 -- 471}, year = {1983}, language = {de} } @article{Alt1978, author = {Alt, Helmut}, title = {Intervallschalter mit getrennt einstellbarer Pulszeit und Pulszahl}, series = {Elektronik : Fachmedium f{\"u}r industrielle Anwender und Entwickler}, volume = {27}, journal = {Elektronik : Fachmedium f{\"u}r industrielle Anwender und Entwickler}, number = {H. 14}, publisher = {WEKA Fachmedien}, address = {Haar}, issn = {0013-5658}, pages = {76}, year = {1978}, language = {de} } @incollection{Alt1983, author = {Alt, Helmut}, title = {Analog anzeigende Digitaluhr}, series = {FH-Texte ; 36 : Berichte aus dem Fachbereich Elektrotechnik Aachen}, booktitle = {FH-Texte ; 36 : Berichte aus dem Fachbereich Elektrotechnik Aachen}, publisher = {Fachhochschule Aachen}, address = {Aachen}, pages = {98 -- 104}, year = {1983}, language = {de} } @article{Alt1983, author = {Alt, Helmut}, title = {Auswertung von Belastungskennlinien}, series = {Elektrizit{\"a}tswirtschaft}, volume = {Bd. 82}, journal = {Elektrizit{\"a}tswirtschaft}, issn = {0013-5496}, pages = {208 -- 210}, year = {1983}, language = {de} } @article{Alt1985, author = {Alt, Helmut}, title = {Vorteilsausgleich durch Versorgungsunternehmen f{\"u}r Ersatzleistungen Dritter}, series = {Elektrizit{\"a}tswirtschaft}, volume = {Jg. 104}, journal = {Elektrizit{\"a}tswirtschaft}, issn = {0013-5496}, pages = {440 -- 443}, year = {1985}, language = {de} } @article{Alt1985, author = {Alt, Helmut}, title = {Multiplikativ oder additiv? Diskussionsbeitrag zu Preisanpassungsklauseln in der Gaswirtschaft}, series = {Energiewirtschaftliche Tagesfragen : et ; Zeitschrift f{\"u}r Energiewirtschaft, Recht, Technik und Umwelt}, volume = {Jg. 35}, journal = {Energiewirtschaftliche Tagesfragen : et ; Zeitschrift f{\"u}r Energiewirtschaft, Recht, Technik und Umwelt}, issn = {0013-743X}, pages = {609 -- 611}, year = {1985}, language = {de} } @article{Alt1986, author = {Alt, Helmut}, title = {Steuersenkungsgesetz-Auswirkungen und Berechnung}, series = {Elektrizit{\"a}tswirtschaft}, volume = {Jg. 85}, journal = {Elektrizit{\"a}tswirtschaft}, issn = {0013-5496}, pages = {238 -- 242}, year = {1986}, language = {de} } @article{Alt1986, author = {Alt, Helmut}, title = {Dialoggesteuerte harmonische Analyse mit dem HP 41}, series = {Elektrizit{\"a}tswirtschaft}, volume = {Bd. 85}, journal = {Elektrizit{\"a}tswirtschaft}, number = {H. 4}, issn = {0013-5496}, pages = {139 -- 142}, year = {1986}, language = {de} } @article{Alt1986, author = {Alt, Helmut}, title = {Dialoggesteuerte harmonische Analyse mit dem HP 41}, series = {Elektrow{\"a}rme international Edition B : Industrielle Elektrow{\"a}rme : IEW = Industrial applications of electro-heat : EWI ; Zeitschr. f{\"u}r das gesamte Gebiet der Elektrow{\"a}rme in Industrie, Gewerbe und Haushalt}, volume = {Jg. 44}, journal = {Elektrow{\"a}rme international Edition B : Industrielle Elektrow{\"a}rme : IEW = Industrial applications of electro-heat : EWI ; Zeitschr. f{\"u}r das gesamte Gebiet der Elektrow{\"a}rme in Industrie, Gewerbe und Haushalt}, number = {H. 6}, issn = {0340-3521}, pages = {283 -- 287}, year = {1986}, language = {de} } @article{Alt1986, author = {Alt, Helmut}, title = {Dialoggesteuerte Spannungs- und Belastungsberechnung im Netz eines Elektrizit{\"a}tsversorgungsunternehmens}, series = {Elektrizit{\"a}tswirtschaft}, volume = {Bd. 85}, journal = {Elektrizit{\"a}tswirtschaft}, number = {H. 23}, issn = {0013-5496}, pages = {906 -- 910}, year = {1986}, language = {de} } @article{Alt1987, author = {Alt, Helmut}, title = {Effektivzinsberechnung bei industriellen oder gewerblichen Tilgungsdarlehen}, series = {Elektrizit{\"a}tswirtschaft}, volume = {Bd. 86}, journal = {Elektrizit{\"a}tswirtschaft}, issn = {0013-5496}, pages = {592 -- 595}, year = {1987}, language = {de} } @article{Alt1988, author = {Alt, Helmut}, title = {Die wichtigsten Kontof{\"u}hrungsmodelle}, series = {Frankfurter Zeitung : Blick durch die Wirtschaft : Zeitung f{\"u}r Finanzen, Steuern, Recht und Management}, journal = {Frankfurter Zeitung : Blick durch die Wirtschaft : Zeitung f{\"u}r Finanzen, Steuern, Recht und Management}, number = {Nr. 240 vom 13.12.1988}, pages = {3}, year = {1988}, language = {de} } @article{Alt1989, author = {Alt, Helmut}, title = {Steuerreformgesetz 1990}, series = {Elektrizit{\"a}tswirtschaft}, volume = {Bd. 88}, journal = {Elektrizit{\"a}tswirtschaft}, number = {H. 1/2}, issn = {0013-5496}, pages = {78 -- 83}, year = {1989}, language = {de} } @article{Alt1987, author = {Alt, Helmut}, title = {Steuersenkungs-Erweiterungsgesetz 1988 zur Gesamtentlastung der Einkommensteuer}, series = {Betriebs-Berater : BB ; Zeitschrift f{\"u}r Recht und Wirtschaft}, volume = {Vol. 42}, journal = {Betriebs-Berater : BB ; Zeitschrift f{\"u}r Recht und Wirtschaft}, number = {H. 32}, issn = {0340-7918}, pages = {2207 -- 2208}, year = {1987}, language = {de} } @article{Alt1989, author = {Alt, Helmut}, title = {Steuerreformgesetz 1990}, series = {Elektrizit{\"a}tswirtschaft}, volume = {Jg. 88}, journal = {Elektrizit{\"a}tswirtschaft}, number = {H. 2}, issn = {0947-0581 (E-Journal); 0340-7918 (Print)}, pages = {120 -- 121}, year = {1989}, language = {de} } @article{Alt1990, author = {Alt, Helmut}, title = {Energietarifstruktur in Ostdeutschland}, series = {Energiewirtschaftliche Tagesfragen : et ; Zeitschrift f{\"u}r Energiewirtschaft, Recht, Technik und Umwelt}, volume = {Bd. 40}, journal = {Energiewirtschaftliche Tagesfragen : et ; Zeitschrift f{\"u}r Energiewirtschaft, Recht, Technik und Umwelt}, number = {H. 11}, issn = {0013-743X}, pages = {782 -- 788}, year = {1990}, language = {de} } @article{Alt1991, author = {Alt, Helmut}, title = {Effektivzins und APR}, series = {Die Bank : Zeitschrift f{\"u}r Bankpolitik und Bankpraxis}, volume = {Jg. 31}, journal = {Die Bank : Zeitschrift f{\"u}r Bankpolitik und Bankpraxis}, number = {H. 4}, issn = {0342-3182}, pages = {230 -- 231}, year = {1991}, language = {de} } @article{Alt1992, author = {Alt, Helmut}, title = {M{\"o}glichkeiten der CO2-Minderung "alternativ" betrachtet}, series = {Etz : Elektrotechnik \& Automation}, volume = {Bd. 113}, journal = {Etz : Elektrotechnik \& Automation}, number = {H. 6-7}, issn = {0170-1711}, pages = {400}, year = {1992}, language = {de} } @article{Alt1995, author = {Alt, Helmut}, title = {Netzimpedanz- und Oberschwingungsberechnung in Netzen der {\"o}ffentlichen Stromversorgung}, series = {Elektrizit{\"a}tswirtschaft}, volume = {Bd. 94}, journal = {Elektrizit{\"a}tswirtschaft}, number = {H. 4}, issn = {0013-5496}, pages = {166 -- 174}, year = {1995}, language = {de} } @book{Alt1979, author = {Alt, Helmut}, title = {Angewandte Mathematik, Finanzmathematik, Statistik, Informatik f{\"u}r UPN-Rechner. (Anwendung programmierbarer Taschenrechner ; 1)}, publisher = {Vieweg}, address = {Braunschweig [u.a.]}, isbn = {3-528-04150-1}, pages = {VIII, 162 S : graph. Darst.}, year = {1979}, language = {de} } @book{Alt1980, author = {Alt, Helmut}, title = {Allgemeine Elektrotechnik, Nachrichtentechnik, Impulstechnik f{\"u}r UPN-Rechner. (Anwendung programmierbarer Taschenrechner ; 2)}, publisher = {Vieweg}, address = {Braunschweig [u.a.]}, isbn = {3-528-04151-X}, pages = {VII, 109 S. : graph. Darst.}, year = {1980}, language = {de} } @book{Alt1980, author = {Alt, Helmut}, title = {Elektrische Energietechnik, Steuerungstechnik, Elektrizit{\"a}tswirtschaft f{\"u}r UPN-Rechner. (Anwendung programmierbarer Taschenrechner ; 6)}, publisher = {Vieweg}, address = {Braunschweig [u.a.]}, isbn = {3-528-04180-3}, pages = {VIII, 118 S. : graph. Darst.}, year = {1980}, language = {de} } @book{Alt1986, author = {Alt, Helmut}, title = {Finanzmathematik : Algorithmen und praktische Anwendungen; mit Beispielprogrammen zum HP-41}, publisher = {Vieweg}, address = {Braunschweig [u.a.]}, isbn = {3-528-04448-9}, pages = {XI, 439 S. : graph. Darst.}, year = {1986}, language = {de} } @misc{Alt2011, author = {Alt, Helmut}, title = {Energiekonzept als Br{\"u}cke in die Zukunft : Beitrag f{\"u}r KTG Kongress: vom 17. bis 19. Mai 2011, Berlin, Section 10: Energy Industry and Economics}, pages = {1 -- 9}, year = {2011}, language = {de} } @misc{Alt2014, author = {Alt, Helmut}, title = {Energiekonzept mit kurzer Br{\"u}cke zu witterungsabh{\"a}ngigen, hohen Strompreisen : KTG Jahrestagung in Stuttgart, 22.- 24. 5. 2012}, pages = {1 -- 60}, year = {2014}, language = {de} } @misc{Alt2010, author = {Alt, Helmut}, title = {Optionen einer bezahlbaren Energieversorgung „Vision versus Realismus" : Beitrag f{\"u}r KTG Kongress: vom 4. bis 6. Mai 2010, Berlin}, pages = {1 -- 10}, year = {2010}, language = {de} } @misc{Alt2004, author = {Alt, Helmut}, title = {Energie und Umwelt: Weichenstellungen f{\"u}r eine nachhaltige Stromversorgung : [Vortrag] Zukunftsforum Politik, Zukunftswerkstatt, Konrad-Adenauer-Stiftung, Berlin, 28.4.2004}, pages = {1 -- 26}, year = {2004}, language = {de} } @article{Alt1974, author = {Alt, Helmut}, title = {1,45 Mrd. DM f{\"u}r die Kohlevergasung}, series = {Energiewirtschaftliche Tagesfragen}, volume = {24}, journal = {Energiewirtschaftliche Tagesfragen}, number = {5}, publisher = {VDE-Verlag}, address = {Berlin}, issn = {0720-6240}, pages = {243 -- 244}, year = {1974}, language = {de} } @article{Alt1992, author = {Alt, Helmut}, title = {Renditevergleich zwischen Immobilien und Festverzinslichen}, series = {Die Bank}, journal = {Die Bank}, number = {H. 2}, issn = {0342-3182}, pages = {91 -- 92}, year = {1992}, language = {de} } @article{Alt1975, author = {Alt, Helmut}, title = {Elektro-Brikett-Zentralspeicherheizung soll die Spitzenlast der EVU schonen}, series = {Energiewirtschaftliche Tagesfragen}, volume = {25}, journal = {Energiewirtschaftliche Tagesfragen}, number = {4}, publisher = {VDE-Verlag}, address = {Berlin}, issn = {0720-6240}, pages = {148 -- 149}, year = {1975}, language = {de} } @article{Alt1974, author = {Alt, Helmut}, title = {Ab 1975 Uranerz aus Rabbit-Lake}, series = {Energiewirtschaftliche Tagesfragen}, volume = {24}, journal = {Energiewirtschaftliche Tagesfragen}, number = {1/2}, publisher = {VDE-Verlag}, address = {Berlin}, issn = {0720-6240}, pages = {34}, year = {1974}, language = {de} } @incollection{Alt2022, author = {Alt, Helmut}, title = {Speicher speichern, Leiter leiten}, series = {Generationenprojekt Energiewende : Elektroenergiepolitik im Spannungsfeld zwischen Vision und Mission / Herbert Niederhausen (Hrsg.)}, booktitle = {Generationenprojekt Energiewende : Elektroenergiepolitik im Spannungsfeld zwischen Vision und Mission / Herbert Niederhausen (Hrsg.)}, publisher = {Books on Demand}, address = {Norderstedt}, isbn = {9783755774389}, pages = {125 -- 136}, year = {2022}, language = {de} } @inproceedings{AltPonten1993, author = {Alt, Helmut and Ponten, A.}, title = {Energiewirtschaftliche Bewertung der Einspeisung einer Windkraftanlage im Binnenland}, series = {ETG-Tage '93 am 20. und 21. Oktober 1993 in Mannheim : Ert{\"u}chtigung von Kraftwerken und Netzen, insbesondere in den neuen Bundesl{\"a}ndern : Plenarveranstaltung. (ETG-Fachbericht ; 47)}, booktitle = {ETG-Tage '93 am 20. und 21. Oktober 1993 in Mannheim : Ert{\"u}chtigung von Kraftwerken und Netzen, insbesondere in den neuen Bundesl{\"a}ndern : Plenarveranstaltung. (ETG-Fachbericht ; 47)}, organization = {Energietechnische Gesellschaft im VDE}, isbn = {3-8007-1967-3}, pages = {109 -- 118}, year = {1993}, language = {de} } @book{AltSchumny1983, author = {Alt, Helmut and Schumny, Harald}, title = {Schreiben, Zeichnen, Tabellieren : (TI-59, HP-41 C) (Vieweg-Programmbibliothek Taschenrechner ; 4) / Helmut Alt ; Harald Schumny [Hrsg.]}, publisher = {Vieweg + Teubner}, address = {Wiesbaden}, isbn = {3-528-04233-8}, pages = {77 S.}, year = {1983}, language = {de} } @book{AltSchumny1983, author = {Alt, Helmut and Schumny, Harald}, title = {Taschenrechnerarithmetik mit erh{\"o}hter Genauigkeit (TI-59/HP-41C) (Vieweg-Programmbibliothek Taschenrechner ; 2) / Helmut Alt ; Harald Schumny [Hrsg.]}, publisher = {Vieweg + Teubner}, address = {Wiesbaden}, isbn = {3-528-04229-X ; 978-3-322-91099-8 ; 978-3-528-04229-5}, pages = {III, 58 S.}, year = {1983}, language = {de} } @book{AltSchumny1982, author = {Alt, Helmut and Schumny, Harald}, title = {Programmierung mathematischer Algorithmen (Vieweg-Programmbibliothek Taschenrechner ; 1) / Helmut Alt ; Harald Schumny [Hrsg.]}, publisher = {Vieweg + Teubner}, address = {Wiesbaden}, isbn = {3-528-04211-7}, pages = {92 S.}, year = {1982}, language = {de} } @inproceedings{AltayButenweg2013, author = {Altay, Okyay and Butenweg, Christoph}, title = {Ermittlung der optimalen Geometrie von Fl{\"u}ssigkeitss{\"a}ulend{\"a}mpfern auf Grundlage neuer Optimierungsans{\"a}tze}, series = {13. D-A-CH Tagung f{\"u}r Erdbebeningenieurwesen und Baudynamik (D-A-CH 2013) : 29.-30. August 2013, Wien, {\"O}sterreich}, booktitle = {13. D-A-CH Tagung f{\"u}r Erdbebeningenieurwesen und Baudynamik (D-A-CH 2013) : 29.-30. August 2013, Wien, {\"O}sterreich}, organization = {D-A-CH Tagung f{\"u}r Erdbebeningenieurwesen und Baudynamik <13, 2013, Wien>}, pages = {1 -- 10}, year = {2013}, language = {de} } @inproceedings{AltayButenwegKlinkel2013, author = {Altay, Okyay and Butenweg, Christoph and Klinkel, Sven}, title = {Vibration control of slender structures by semi-active tuned liquid column dampers}, series = {Conference of the ASCE Engineering Mechanics Institute , Evanston, IL , USA , EMI 2013 , 2013-08-04 - 2013-08-07}, booktitle = {Conference of the ASCE Engineering Mechanics Institute , Evanston, IL , USA , EMI 2013 , 2013-08-04 - 2013-08-07}, pages = {1 Seite}, year = {2013}, language = {en} } @inproceedings{AltayButenwegKlinkel2014, author = {Altay, Okyay and Butenweg, Christoph and Klinkel, Sven}, title = {Vibration mitigation of wind turbine towers by a new semiactive Tuned Liquid Column Damper}, series = {6. Word Congress on Structural Control and Monitoring, 15 - 17 July, 2014 Barcelona,Spain}, booktitle = {6. Word Congress on Structural Control and Monitoring, 15 - 17 July, 2014 Barcelona,Spain}, year = {2014}, language = {en} } @inproceedings{AltayButenwegKlinkeletal.2014, author = {Altay, Okyay and Butenweg, Christoph and Klinkel, Sven and Taddei, Francesca}, title = {Vibration mitigation of wind turbine towers by tuned liquid column dampers}, series = {Proceedings of the 9th European Conference on Structural Dynamics, EURODYN 2014 Porto, Portugal, 30 June - 2 July 2014 / A. Cunha, E. Caetano, .... (eds.)}, booktitle = {Proceedings of the 9th European Conference on Structural Dynamics, EURODYN 2014 Porto, Portugal, 30 June - 2 July 2014 / A. Cunha, E. Caetano, .... (eds.)}, address = {Porto}, organization = {European Conference on Structural Dynamics, EURODYN <9, 2014, Porto>}, isbn = {978-972-752-165-4}, pages = {1531 -- 1538}, year = {2014}, language = {en} } @article{AltayButenwegTaddei2013, author = {Altay, Okyay and Butenweg, Christoph and Taddei, Francesca}, title = {Effektivit{\"a}t von Schwingungsd{\"a}mpfern bei Windenergieanlagen}, series = {Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik. Beilage: D-A-CH-Mitteilungsblatt}, volume = {Band 88}, journal = {Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik. Beilage: D-A-CH-Mitteilungsblatt}, number = {Heft 10}, publisher = {VDI Fachmedien}, address = {D{\"u}sseldorf}, issn = {1436-4867 (E-Journal); 0005-6650 (Print)}, pages = {S11 -- S17}, year = {2013}, language = {de} } @inproceedings{AltayKlinkelButenweg2014, author = {Altay, Okyay and Klinkel, Sven and Butenweg, Christoph}, title = {Intelligente semiaktive D{\"a}mpfungssysteme zur Reduktion periodischer und stochastischer Bauwerksschwingungen}, series = {Berichte der Fachtagung Baustatik - Baupraxis 12 am 24. und 25. Februar 2014 an der Technischen Universit{\"a}t M{\"u}nchen / Hrsg. Kai-Uwe Bletzinger ...}, booktitle = {Berichte der Fachtagung Baustatik - Baupraxis 12 am 24. und 25. Februar 2014 an der Technischen Universit{\"a}t M{\"u}nchen / Hrsg. Kai-Uwe Bletzinger ...}, publisher = {Lehrstuhl f{\"u}r Statik, Techn. Univ. M{\"u}nchen}, address = {M{\"u}nchen}, organization = {Fachtagung Baustatik - Baupraxis <12, 2014, M{\"u}nchen>}, isbn = {978-3-00-041256-1}, pages = {397 -- 404}, year = {2014}, language = {de} } @incollection{AltayTaddeiButenwegetal.2014, author = {Altay, Okyay and Taddei, Francesca and Butenweg, Christoph and Klinkel, Sven}, title = {Vibration mitigation of wind turbine towers with tuned mass dampers}, series = {Wind turbine control and monitoring. (Advances in industrial control)}, booktitle = {Wind turbine control and monitoring. (Advances in industrial control)}, publisher = {Springer}, address = {Cham ; Heidelberg ; New York ; Dordrecht ; London}, isbn = {978-3-319-08412-1 (Print) ; 978-3-319-08413-8 (E-Book)}, doi = {10.1007/978-3-319-08413-8_12}, pages = {337 -- 373}, year = {2014}, abstract = {Because of its minor environmental impact, electricity generation using wind power is getting remarkable. The further growth of the wind industry depends on technological solutions to the challenges in production and construction of the turbines. Wind turbine tower vibrations, which limit power generation efficiency and cause fatigue problems with high maintenance costs, count as one of the main structural difficulties in the wind energy sector. To mitigate tower vibrations auxiliary measures are necessary. The effectiveness of tuned mass damper is verified by means of a numeric study on a 5 MW onshore reference wind turbine. Hereby, also seismic-induced vibrations and soil-structure interaction are considered. Acquired results show that tuned mass damper can effectively reduce resonant tower vibrations and improve the fatigue life of wind turbines. This chapter is also concerned with tuned liquid column damper and a semiactive application of it. Due to its geometric versatility and low prime costs, tuned liquid column dampers are a good alternative to other damping measures, in particular for slender structures like wind turbines.}, language = {en} } @book{AltensenAltSchumny1983, author = {Altensen, Frank and Alt, Helmut and Schumny, Harald}, title = {Kryptologie (HP-41 C/CV) : Chiffrierung, Textverschl{\"u}sselung, Datenschutz, Morsealphabet (Vieweg-Programmbibliothek Taschenrechner ; 7) / Helmut Alt ; Harald Schumny [Hrsg.]}, publisher = {Vieweg + Teubner}, address = {Wiesbaden}, isbn = {3-528-04256-7}, pages = {V, 92 S.}, year = {1983}, language = {de} }