@article{AlexopoulosHoffschmidt2010, author = {Alexopoulos, Spiros and Hoffschmidt, Bernhard}, title = {Solarthermische Kraftwerke mit thermischen Speichern}, series = {Chemie Ingenieur Technik. 82 (2010), H. 9}, journal = {Chemie Ingenieur Technik. 82 (2010), H. 9}, isbn = {1522-2640}, pages = {1606 -- 1606}, year = {2010}, language = {de} } @article{AlexopoulosHoffschmidt2017, author = {Alexopoulos, Spiros and Hoffschmidt, Bernhard}, title = {Advances in solar tower technology}, series = {Wiley interdisciplinary reviews : Energy and Environment : WIREs}, volume = {6}, journal = {Wiley interdisciplinary reviews : Energy and Environment : WIREs}, number = {1}, publisher = {Wiley}, address = {Weinheim}, issn = {2041-840X}, doi = {10.1002/wene.217}, pages = {1 -- 19}, year = {2017}, language = {en} } @inproceedings{AlexopoulosHoffschmidtRau2011, author = {Alexopoulos, Spiros and Hoffschmidt, Bernhard and Rau, Christoph}, title = {Comparison of steady-state and transient simulations for solar tower power plants with open-volumetric receiver}, series = {SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain}, booktitle = {SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain}, address = {Granada}, pages = {1 CD-ROM}, year = {2011}, language = {en} } @inproceedings{AlexopoulosHoffschmidtRauetal.2012, author = {Alexopoulos, Spiros and Hoffschmidt, Bernhard and Rau, Christoph and Sattler, Johannes, Christoph}, title = {Simulation of hybrid solar tower power plants}, series = {30th ISES Biennial Solar World Congress 2011 : Kassel, Germany, 28 August - 2 September 2011. Vol. 5}, booktitle = {30th ISES Biennial Solar World Congress 2011 : Kassel, Germany, 28 August - 2 September 2011. Vol. 5}, publisher = {Curran}, address = {Red Hook, NY}, organization = {International Solar Energy Society}, pages = {4044 -- 4050}, year = {2012}, language = {en} } @inproceedings{AlexopoulosHoffschmidtRauetal.2011, author = {Alexopoulos, Spiros and Hoffschmidt, Bernhard and Rau, Christoph and Sattler, Johannes, Christoph}, title = {Choice of solar share of a hybrid power plant of a central receiver system and a biogas plant in dependency of the geographical latitude}, series = {World Renewable Energy Congress-Sweden : 8 -13 May, 2011, Link{\"o}ping, Sweden / ed.: Bahram Moshfegh}, booktitle = {World Renewable Energy Congress-Sweden : 8 -13 May, 2011, Link{\"o}ping, Sweden / ed.: Bahram Moshfegh}, publisher = {Univ. Electronic Pr.}, address = {Link{\"o}ping}, isbn = {9789173930703}, pages = {3710 -- 3717}, year = {2011}, language = {en} } @inproceedings{AlexopoulosHoffschmidtRauetal.2010, author = {Alexopoulos, Spiros and Hoffschmidt, Bernhard and Rau, Christoph and Schmitz, M. and Schwarzb{\"o}zl, P. and Pomp, Stefan}, title = {Simulation results for a hybridized operation of a gas turbine or a burner for a small solar tower power plant}, series = {SolarPACES 2010 : the CSP Conference: electricity, fuels and clean water from concentrated solar energy ; 21 to 24 September 2010, Perpignan, France}, booktitle = {SolarPACES 2010 : the CSP Conference: electricity, fuels and clean water from concentrated solar energy ; 21 to 24 September 2010, Perpignan, France}, publisher = {Soc. OSC}, address = {Saint Maur}, pages = {82 -- 83}, year = {2010}, language = {en} } @inproceedings{AlexopoulosHoffschmidtRauetal.2009, author = {Alexopoulos, Spiros and Hoffschmidt, Bernhard and Rau, Christoph and Schwarzb{\"o}zl, Peter}, title = {Simulation results for a hybridization concept of a small solar tower power plant}, series = {SolarPACES 2009 : electricity, fuels and clean water powered by the sun ; 15 - 18 September 2009, Berlin, Germany ; the 15th SolarPACES conference ; proceedings}, booktitle = {SolarPACES 2009 : electricity, fuels and clean water powered by the sun ; 15 - 18 September 2009, Berlin, Germany ; the 15th SolarPACES conference ; proceedings}, publisher = {Deutsches Zentrum f. Luft- u. Raumfahrt}, address = {Stuttgart}, isbn = {9783000287558}, pages = {1 CD-ROM}, year = {2009}, language = {en} } @inproceedings{AlexopoulosKluczkaVaessenetal.2012, author = {Alexopoulos, Spiros and Kluczka, Sven and Vaeßen, Christiane and Roeb, M. and Neises, M.}, title = {Scenario development for efficient methanol production using CO2 and solar energy}, series = {Eurosun 2012 : Solar energy for a brighter future : conference proceedings : Rijeka, 18.-22.09.2012}, booktitle = {Eurosun 2012 : Solar energy for a brighter future : conference proceedings : Rijeka, 18.-22.09.2012}, address = {Rijeka}, pages = {ID 99}, year = {2012}, language = {en} } @inproceedings{AlexopoulosRauHoffschmidtetal.2012, author = {Alexopoulos, Spiros and Rau, Christoph and Hoffschmidt, Bernhard and Breitbach, Gerd and Latzke, Markus}, title = {Modelling and validation of a transient heat recovery steam generator of the solar tower power plant Juelich}, series = {Eurosun 2012 : Solar energy for a brighter future : conference proceedings : Rijeka, 18.-22.09.2012}, booktitle = {Eurosun 2012 : Solar energy for a brighter future : conference proceedings : Rijeka, 18.-22.09.2012}, address = {Rijeka}, pages = {ID 97}, year = {2012}, language = {en} } @inproceedings{AlexopoulosRauSattleretal.2011, author = {Alexopoulos, Spiros and Rau, Christoph and Sattler, Johannes, Christoph and Kronhardt, Valentina and Hoffschmidt, Bernhard}, title = {Simulation von Solarturmkraftwerken mit offenem volumetrischen Receiver am Standort Italien}, series = {Forschung und Entwicklung f{\"u}r solarthermische Kraftwerke : 14. K{\"o}lner Sonnenkolloquium Mittwoch, 13. Juli 2011, im Auditorium des Campus J{\"u}lich der FH Aachen : Kurzfassungen der Vortr{\"a}ge und Poster}, booktitle = {Forschung und Entwicklung f{\"u}r solarthermische Kraftwerke : 14. K{\"o}lner Sonnenkolloquium Mittwoch, 13. Juli 2011, im Auditorium des Campus J{\"u}lich der FH Aachen : Kurzfassungen der Vortr{\"a}ge und Poster}, publisher = {DLR}, address = {K{\"o}ln}, pages = {4 S.}, year = {2011}, language = {de} } @article{AlexyukBogoyavlenskiyAlexyuketal.2021, author = {Alexyuk, Madina and Bogoyavlenskiy, Andrey and Alexyuk, Pavel and Moldakhanov, Yergali and Berezin, Vladimir and Digel, Ilya}, title = {Epipelagic microbiome of the Small Aral Sea: Metagenomic structure and ecological diversity}, series = {MicrobiologyOpen}, volume = {10}, journal = {MicrobiologyOpen}, number = {1}, publisher = {Wiley}, address = {Weinheim}, issn = {2045-8827}, doi = {10.1002/mbo3.1142}, pages = {1 -- 10}, year = {2021}, abstract = {Microbial diversity studies regarding the aquatic communities that experienced or are experiencing environmental problems are essential for the comprehension of the remediation dynamics. In this pilot study, we present data on the phylogenetic and ecological structure of microorganisms from epipelagic water samples collected in the Small Aral Sea (SAS). The raw data were generated by massive parallel sequencing using the shotgun approach. As expected, most of the identified DNA sequences belonged to Terrabacteria and Actinobacteria (40\% and 37\% of the total reads, respectively). The occurrence of Deinococcus-Thermus, Armatimonadetes, Chloroflexi in the epipelagic SAS waters was less anticipated. Surprising was also the detection of sequences, which are characteristic for strict anaerobes—Ignavibacteria, hydrogen-oxidizing bacteria, and archaeal methanogenic species. We suppose that the observed very broad range of phylogenetic and ecological features displayed by the SAS reads demonstrates a more intensive mixing of water masses originating from diverse ecological niches of the Aral-Syr Darya River basin than presumed before.}, language = {en} } @inproceedings{AlhaskirTschescheLinkeetal.2023, author = {Alhaskir, Mohamed and Tschesche, Matteo and Linke, Florian and Schriewer, Elisabeth and Weber, Yvonne and Wolking, Stefan and R{\"o}hrig, Rainer and Koch, Henner and Kutafina, Ekaterina}, title = {ECG matching: an approach to synchronize ECG datasets for data quality comparisons}, series = {German Medical Data Sciences 2023 - Science. Close to People.}, volume = {307}, booktitle = {German Medical Data Sciences 2023 - Science. Close to People.}, editor = {R{\"o}hrig, Rainer and Grabe, Niels and Haag, Martin and H{\"u}bner, Ursula and Sax, Ulrich and Schmidt, Carsten Oliver and Sedlmayr, Martin and Zapf, Antonia}, publisher = {IOS Press}, isbn = {978-1-64368-428-4 (Print)}, doi = {10.3233/SHTI230718}, pages = {225 -- 232}, year = {2023}, abstract = {Clinical assessment of newly developed sensors is important for ensuring their validity. Comparing recordings of emerging electrocardiography (ECG) systems to a reference ECG system requires accurate synchronization of data from both devices. Current methods can be inefficient and prone to errors. To address this issue, three algorithms are presented to synchronize two ECG time series from different recording systems: Binned R-peak Correlation, R-R Interval Correlation, and Average R-peak Distance. These algorithms reduce ECG data to their cyclic features, mitigating inefficiencies and minimizing discrepancies between different recording systems. We evaluate the performance of these algorithms using high-quality data and then assess their robustness after manipulating the R-peaks. Our results show that R-R Interval Correlation was the most efficient, whereas the Average R-peak Distance and Binned R-peak Correlation were more robust against noisy data.}, language = {en} } @inproceedings{AlhwarinFerreinGebhardtetal.2015, author = {Alhwarin, Faraj and Ferrein, Alexander and Gebhardt, Andreas and Kallweit, Stephan and Scholl, Ingrid and Tedjasukmana, Osmond Sanjaya}, title = {Improving additive manufacturing by image processing and robotic milling}, series = {2015 IEEE International Conference on Automation Science and Engineering (CASE), Aug 24-28, 2015 Gothenburg, Sweden}, booktitle = {2015 IEEE International Conference on Automation Science and Engineering (CASE), Aug 24-28, 2015 Gothenburg, Sweden}, doi = {10.1109/CoASE.2015.7294217}, pages = {924 -- 929}, year = {2015}, language = {en} } @article{AlhwarinFerreinScholl2014, author = {Alhwarin, Faraj and Ferrein, Alexander and Scholl, Ingrid}, title = {IR stereo kinect: improving depth images by combining structured light with IR stereo}, pages = {1 -- 9}, year = {2014}, language = {en} } @incollection{AlhwarinFerreinScholl2014, author = {Alhwarin, Faraj and Ferrein, Alexander and Scholl, Ingrid}, title = {IR stereo kinect: improving depth images by combining structured light with IR stereo}, series = {PRICAI 2014: Trends in artificial intelligence : 13th Pacific Rim International Conference on Artificial Intelligence : Gold Coast, QLD, Australia, December 1-5, 2014 : proceedings. (Lecture notes in computer science ; vol. 8862)}, booktitle = {PRICAI 2014: Trends in artificial intelligence : 13th Pacific Rim International Conference on Artificial Intelligence : Gold Coast, QLD, Australia, December 1-5, 2014 : proceedings. (Lecture notes in computer science ; vol. 8862)}, publisher = {Springer}, address = {M{\"u}nchen}, isbn = {978-3-319-13559-5 (Print) ; 978-3-319-13560-1 (E-Book)}, doi = {10.1007/978-3-319-13560-1_33}, pages = {409 -- 421}, year = {2014}, abstract = {RGB-D sensors such as the Microsoft Kinect or the Asus Xtion are inexpensive 3D sensors. A depth image is computed by calculating the distortion of a known infrared light (IR) pattern which is projected into the scene. While these sensors are great devices they have some limitations. The distance they can measure is limited and they suffer from reflection problems on transparent, shiny, or very matte and absorbing objects. If more than one RGB-D camera is used the IR patterns interfere with each other. This results in a massive loss of depth information. In this paper, we present a simple and powerful method to overcome these problems. We propose a stereo RGB-D camera system which uses the pros of RGB-D cameras and combine them with the pros of stereo camera systems. The idea is to utilize the IR images of each two sensors as a stereo pair to generate a depth map. The IR patterns emitted by IR projectors are exploited here to enhance the dense stereo matching even if the observed objects or surfaces are texture-less or transparent. The resulting disparity map is then fused with the depth map offered by the RGB-D sensor to fill the regions and the holes that appear because of interference, or due to transparent or reflective objects. Our results show that the density of depth information is increased especially for transparent, shiny or matte objects.}, language = {en} } @inproceedings{AlhwarinFerreinScholl2018, author = {Alhwarin, Faraj and Ferrein, Alexander and Scholl, Ingrid}, title = {CRVM: Circular Random Variable-based Matcher - A Novel Hashing Method for Fast NN Search in High-dimensional Spaces}, series = {Proceedings of the 7th International Conference on Pattern Recognition Applications and Methods, ICPRAM 2018}, booktitle = {Proceedings of the 7th International Conference on Pattern Recognition Applications and Methods, ICPRAM 2018}, isbn = {978-989-758-276-9}, doi = {10.5220/0006692802140221}, pages = {214 -- 221}, year = {2018}, language = {en} } @inproceedings{AlhwarinFerreinScholl2019, author = {Alhwarin, Faraj and Ferrein, Alexander and Scholl, Ingrid}, title = {An Efficient Hashing Algorithm for NN Problem in HD Spaces}, series = {Lecture Notes in Computer Science}, booktitle = {Lecture Notes in Computer Science}, isbn = {978-303005498-4}, doi = {10.1007/978-3-030-05499-1_6}, pages = {101 -- 115}, year = {2019}, language = {en} } @inproceedings{AlhwarinSchifferFerreinetal.2018, author = {Alhwarin, Faraj and Schiffer, Stefan and Ferrein, Alexander and Scholl, Ingrid}, title = {Optimized KinectFusion Algorithm for 3D Scanning Applications}, series = {Proceedings of the 11th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 2: BIOIMAGING}, booktitle = {Proceedings of the 11th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 2: BIOIMAGING}, isbn = {978-989-758-278-3}, doi = {10.5220/0006594700500057}, pages = {50 -- 57}, year = {2018}, language = {en} } @inproceedings{AlhwarinSchifferFerreinetal.2019, author = {Alhwarin, Faraj and Schiffer, Stefan and Ferrein, Alexander and Scholl, Ingrid}, title = {An Optimized Method for 3D Body Scanning Applications Based on KinectFusion}, series = {Communications in Computer and Information Science}, volume = {1024}, booktitle = {Communications in Computer and Information Science}, publisher = {Springer}, issn = {1865-0929}, doi = {10.1007/978-3-030-29196-9_6}, pages = {100 -- 113}, year = {2019}, language = {en} } @inproceedings{AllalBannisterBuismanetal.2022, author = {Allal, D. and Bannister, R. and Buisman, K. and Capriglione, D. and Di Capua, G. and Garc{\´i}a-Patr{\´o}n, M. and Gatzweiler, Thomas and Gellersen, F. and Harzheim, Thomas and Heuermann, Holger and Hoffmann, J. and Izbrodin, A. and Kuhlmann, K. and Lahbacha, K. and Maffucci, A. and Miele, G. and Mubarak, F. and Salter, M. and Pham, T.D. and Sayegh, A. and Singh, D. and Stein, F. and Zeier, M.}, title = {RF measurements for future communication applications: an overview}, series = {2022 IEEE International Symposium on Measurements \& Networking (M\&N)}, booktitle = {2022 IEEE International Symposium on Measurements \& Networking (M\&N)}, publisher = {IEEE}, isbn = {978-1-6654-8362-9}, issn = {2639-5061}, doi = {10.1109/MN55117.2022.9887740}, pages = {1 -- 6}, year = {2022}, abstract = {In this paper research activities developed within the FutureCom project are presented. The project, funded by the European Metrology Programme for Innovation and Research (EMPIR), aims at evaluating and characterizing: (i) active devices, (ii) signal- and power integrity of field programmable gate array (FPGA) circuits, (iii) operational performance of electronic circuits in real-world and harsh environments (e.g. below and above ambient temperatures and at different levels of humidity), (iv) passive inter-modulation (PIM) in communication systems considering different values of temperature and humidity corresponding to the typical operating conditions that we can experience in real-world scenarios. An overview of the FutureCom project is provided here, then the research activities are described.}, language = {en} } @article{AllefeldBialonski2007, author = {Allefeld, Carsten and Bialonski, Stephan}, title = {Detecting synchronization clusters in multivariate time series via coarse-graining of Markov chains}, series = {Physical Review E}, volume = {76}, journal = {Physical Review E}, number = {6}, issn = {2470-0053}, doi = {10.1103/PhysRevE.76.066207}, pages = {066207}, year = {2007}, language = {en} } @article{AlmajhdiSengerAmeretal.2014, author = {Almajhdi, Fahad N. and Senger, Tilo and Amer, Haitham M. and Gissmann, Lutz and {\"O}hlschl{\"a}ger, Peter}, title = {Design of a highly effective therapeutic HPV16 E6/E7-specific DNA vaccine: optimization by different ways of sequence rearrangements (Shuffling)}, series = {PLOS one}, volume = {11}, journal = {PLOS one}, number = {9}, publisher = {PLOS}, address = {San Francisco}, issn = {1932-6203}, doi = {10.1371/journal.pone.0113461}, pages = {e113461}, year = {2014}, abstract = {Persistent infection with the high-risk Human Papillomavirus type 16 (HPV 16) is the causative event for the development of cervical cancer and other malignant tumors of the anogenital tract and of the head and neck. Despite many attempts to develop therapeutic vaccines no candidate has entered late clinical trials. An interesting approach is a DNA based vaccine encompassing the nucleotide sequence of the E6 and E7 viral oncoproteins. Because both proteins are consistently expressed in HPV infected cells they represent excellent targets for immune therapy. Here we report the development of 8 DNA vaccine candidates consisting of differently rearranged HPV-16 E6 and E7 sequences within one molecule providing all naturally occurring epitopes but supposedly lacking transforming activity. The HPV sequences were fused to the J-domain and the SV40 enhancer in order to increase immune responses. We demonstrate that one out of the 8 vaccine candidates induces very strong cellular E6- and E7- specific cellular immune responses in mice and, as shown in regression experiments, efficiently controls growth of HPV 16 positive syngeneic tumors. This data demonstrates the potential of this vaccine candidate to control persistent HPV 16 infection that may lead to malignant disease. It also suggests that different sequence rearrangements influence the immunogenecity by an as yet unknown mechanism.}, language = {en} } @article{AlnemerKotliarNeuhausetal.2023, author = {Alnemer, Momin Sami Mohammad and Kotliar, Konstantin and Neuhaus, Valentin and Pape, Hans-Christoph and Ciritsis, Bernhard D.}, title = {Cost-effectiveness analysis of surgical proximal femur fracture prevention in elderly: a Markov cohort simulation model}, series = {Cost Effectiveness and Resource Allocation}, journal = {Cost Effectiveness and Resource Allocation}, number = {21, Article number: 77}, publisher = {Springer Nature}, issn = {1478-7547}, doi = {10.1186/s12962-023-00482-4}, pages = {12 Seiten}, year = {2023}, abstract = {Background Hip fractures are a common and costly health problem, resulting in significant morbidity and mortality, as well as high costs for healthcare systems, especially for the elderly. Implementing surgical preventive strategies has the potential to improve the quality of life and reduce the burden on healthcare resources, particularly in the long term. However, there are currently limited guidelines for standardizing hip fracture prophylaxis practices. Methods This study used a cost-effectiveness analysis with a finite-state Markov model and cohort simulation to evaluate the primary and secondary surgical prevention of hip fractures in the elderly. Patients aged 60 to 90 years were simulated in two different models (A and B) to assess prevention at different levels. Model A assumed prophylaxis was performed during the fracture operation on the contralateral side, while Model B included individuals with high fracture risk factors. Costs were obtained from the Centers for Medicare \& Medicaid Services, and transition probabilities and health state utilities were derived from available literature. The baseline assumption was a 10\% reduction in fracture risk after prophylaxis. A sensitivity analysis was also conducted to assess the reliability and variability of the results. Results With a 10\% fracture risk reduction, model A costs between \$8,850 and \$46,940 per quality-adjusted life-year (\$/QALY). Additionally, it proved most cost-effective in the age range between 61 and 81 years. The sensitivity analysis established that a reduction of ≥ 2.8\% is needed for prophylaxis to be definitely cost-effective. The cost-effectiveness at the secondary prevention level was most sensitive to the cost of the contralateral side's prophylaxis, the patient's age, and fracture treatment cost. For high-risk patients with no fracture history, the cost-effectiveness of a preventive strategy depends on their risk profile. In the baseline analysis, the incremental cost-effectiveness ratio at the primary prevention level varied between \$11,000/QALY and \$74,000/QALY, which is below the defined willingness to pay threshold. Conclusion Due to the high cost of hip fracture treatment and its increased morbidity, surgical prophylaxis strategies have demonstrated that they can significantly relieve the healthcare system. Various key assumptions facilitated the modeling, allowing for adequate room for uncertainty. Further research is needed to evaluate health-state-associated risks.}, language = {en} } @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} } @article{Alt1970, author = {Alt, Helmut}, title = {Entwicklungstendenzen der Sicherheit und der notwendigen Reserveleistung beim Verbundbetrieb der Kraftwerke}, series = {Elektrizit{\"a}tswirtschaft}, volume = {69}, journal = {Elektrizit{\"a}tswirtschaft}, number = {25}, publisher = {VWEW-Energieverlag}, address = {Frankfurt/Main}, issn = {0013-5496}, pages = {672 -- 678}, year = {1970}, language = {de} } @incollection{Alt1971, author = {Alt, Helmut}, title = {Fußball oder Mathematik}, series = {Alma Mater Aquensis : Jahresbericht}, booktitle = {Alma Mater Aquensis : Jahresbericht}, pages = {110 -- 114}, year = {1971}, language = {de} } @article{Alt1972, author = {Alt, Helmut}, title = {Digitale Berechnung der Betriebsdiagramme von Hochspannungsleitungen}, series = {Elektrizit{\"a}tswirtschaft}, volume = {71}, journal = {Elektrizit{\"a}tswirtschaft}, number = {4}, publisher = {VWEW-Energieverlag}, address = {Frankfurt/Main}, issn = {0013-5496}, pages = {87 -- 92}, year = {1972}, language = {de} } @article{Alt1974, author = {Alt, Helmut}, title = {Auswertung von Pr{\"u}fungsergebnissen auf elektronischen Rechenanlagen}, series = {Angewandte Informatik}, volume = {16}, journal = {Angewandte Informatik}, number = {5}, publisher = {Vieweg}, address = {Braunschweig}, issn = {0013-5704}, pages = {219 -- 222}, year = {1974}, language = {de} } @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} } @misc{Alt2004, author = {Alt, Helmut}, title = {Netzeinspeisung aus zeitlich flukturierenden Quellen : Vortrag DPG : Fr{\"u}hjahrstagung des Arbeitskreises Energie (AKE) im Rahmen der Jahrestagung der DPG in M{\"u}nchen vom 22. bis 26. M{\"a}rz 2004}, pages = {1 -- 18}, year = {2004}, language = {de} } @misc{Alt2003, author = {Alt, Helmut}, title = {Netzeinspeisung aus zeitlich fluktuativen Quellen (Wind und Photovoltaik) : Kurzfassung : Vortrag : 300. WE-Heraeus-Seminar Energie-Forschung : 26. bis 28. Mai 2003, Physikzentrum Bad Honnef, Elly H{\"o}lterhoff-B{\"o}cking-Stiftung}, organization = {Wilhelm und Else Heraeus-Stiftung}, pages = {1 -- 31}, year = {2003}, language = {de} } @misc{Alt2010, author = {Alt, Helmut}, title = {Vom Studium der Kerntechnik zu Energie zwischen Wunsch und Wirklichkeit : [Vortrag : Verleihung der KTG-Ehrenmitgliedschaft, Berlin, November 2010]}, pages = {1 -- 15}, year = {2010}, 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{Alt1989, author = {Alt, Helmut}, title = {Sechsunddreißig Spielarten der Verrechung : die Behandlung von Tilgungs- und Zinszahlungen}, 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}, pages = {vom 12.9.1989}, year = {1989}, language = {de} } @inproceedings{Alt2004, author = {Alt, Helmut}, title = {Energiewirtschaftliche Bedeutung der Windenergie im Stromerzeugungsmix}, series = {Innovationen f{\"u}r Menschen : VDE-Kongress 2004, 18. - 20. Oktober 2004 in Berlin ; Bd. 1: Fachtagungsberichte der ITG - ETG}, booktitle = {Innovationen f{\"u}r Menschen : VDE-Kongress 2004, 18. - 20. Oktober 2004 in Berlin ; Bd. 1: Fachtagungsberichte der ITG - ETG}, publisher = {VDE-Verl.}, address = {Berlin [u.a.]}, organization = {Verband der Elektrotechnik, Elektronik, Informationstechnik}, pages = {551 -- 559}, year = {2004}, language = {de} } @article{Alt2001, author = {Alt, Helmut}, title = {Energie: Der harte Wettbewerb erfordert eine g{\"u}nstige Strombeschaffung - Billiger Atomstrom wird aus dem Ausland importiert - Der Strommix im Netz l{\"a}sst sich nicht nach der Herkunft trennen "Gr{\"u}ner" Strom - ein Etikettenschwindel}, series = {VDI-Nachrichten vom 15.6.2001}, journal = {VDI-Nachrichten vom 15.6.2001}, pages = {13}, year = {2001}, language = {de} } @article{Alt2007, author = {Alt, Helmut}, title = {Leser: Es wurde nichts verschenkt}, series = {Handelsblatt : Deutschlands Wirtschafts- und Finanzzeitung vom 5.1.2007}, journal = {Handelsblatt : Deutschlands Wirtschafts- und Finanzzeitung vom 5.1.2007}, pages = {18}, year = {2007}, language = {de} } @article{Alt2005, author = {Alt, Helmut}, title = {Wunschphantasie eines eingefleischten Kernenergiegegners : zur Rede von Bundesumweltminister J{\"u}rgen Trittin auf dem VDEW-Kongress 2005 "Die Energieversorgung der Zukunft"}, series = {EW : das Magazin f{\"u}r die Energie-Wirtschaft}, volume = {Bd. 104}, journal = {EW : das Magazin f{\"u}r die Energie-Wirtschaft}, number = {H. 17/18}, issn = {0013-5496}, pages = {7}, year = {2005}, language = {de} } @article{Alt2005, author = {Alt, Helmut}, title = {Versorgungssicherheit und Windenergie : Tatsachen und Fakten statt Mythen und Mysterien}, series = {EW : das Magazin f{\"u}r die Energie-Wirtschaft}, volume = {Bd. 104}, journal = {EW : das Magazin f{\"u}r die Energie-Wirtschaft}, number = {H. 25}, issn = {0013-5496}, pages = {42 -- 45}, year = {2005}, language = {de} } @article{Alt2011, author = {Alt, Helmut}, title = {Die Sonne bestimmt zunehmend die Spannung in der Steckdose : Lastflussberechnung einer Photovoltaikeinspeisung}, series = {EW : das Magazin f{\"u}r die Energie-Wirtschaft}, volume = {Bd. 110}, journal = {EW : das Magazin f{\"u}r die Energie-Wirtschaft}, number = {H. 17/18}, publisher = {VWEW-Energieverlag}, address = {Frankfurt, M.}, issn = {0013-5496}, pages = {24 -- 29}, year = {2011}, language = {de} } @inproceedings{Alt2003, author = {Alt, Helmut}, title = {Energiewirtschaftliche Bedeutung der Windenergie}, series = {Fortschrittliche Energiewandlung und -anwendung 2003 : Tagung Stuttgart, 11. und 12. M{\"a}rz 2003. (VDI-Berichte ; 1746)}, booktitle = {Fortschrittliche Energiewandlung und -anwendung 2003 : Tagung Stuttgart, 11. und 12. M{\"a}rz 2003. (VDI-Berichte ; 1746)}, organization = {Gesellschaft Energietechnik}, isbn = {3-18-091746-6}, pages = {447 -- 459}, year = {2003}, language = {de} } @inproceedings{Alt2000, author = {Alt, Helmut}, title = {Stand der Durchleitungspraxis auf Basis des neuen Energiewirtschaftsgesetzes}, series = {Energie und Umwelt 2000 : Fachkongreß und Ausstellung mit DBU-Statuskolloquium der Deutschen Bundesstiftung Umwelt: In situ-Bodenreaktor-Technologie, 29. bis 30. M{\"a}rz 2000 in Freiberg, Clemens-Winkler-Bau ; Tagungsband}, booktitle = {Energie und Umwelt 2000 : Fachkongreß und Ausstellung mit DBU-Statuskolloquium der Deutschen Bundesstiftung Umwelt: In situ-Bodenreaktor-Technologie, 29. bis 30. M{\"a}rz 2000 in Freiberg, Clemens-Winkler-Bau ; Tagungsband}, organization = {Technische Universit{\"a}t }, pages = {86 -- 88}, year = {2000}, language = {de} } @phdthesis{Alt1975, author = {Alt, Helmut}, title = {Beitrag zur Spannungs-Blindleistungsregelung mit gesteuerten Netzkennlinien}, address = {Aachen}, pages = {163 S.}, year = {1975}, language = {de} } @article{Alt1976, author = {Alt, Helmut}, title = {Spannungs-Blindleistungs-Regelung mit gesteuerten Netzkennlinien}, series = {Elektrotechnische Zeitschrift : Ausgabe A, Zeitschrift f{\"u}r elektrische Energietechnik : ETZ}, volume = {97}, journal = {Elektrotechnische Zeitschrift : Ausgabe A, Zeitschrift f{\"u}r elektrische Energietechnik : ETZ}, number = {7}, publisher = {VDE-Verlag}, address = {Wuppertal}, issn = {0302-265x}, pages = {441 -- 446}, year = {1976}, 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} } @article{Alt1995, author = {Alt, Helmut}, title = {Netzanschlußm{\"o}glichkeiten und energiewirtschaftliche Bewertung von Windkraftanlagen}, series = {Elektrizit{\"a}tswirtschaft}, volume = {Jg. 94}, journal = {Elektrizit{\"a}tswirtschaft}, number = {H. 19}, issn = {0013-5496}, pages = {1224 -- 1234}, year = {1995}, language = {de} } @article{Alt2000, author = {Alt, Helmut}, title = {Benchmark der Netznutzungspreise}, series = {Energiewirtschaftliche Tagesfragen : et ; Zeitschrift f{\"u}r Energiewirtschaft, Recht, Technik und Umwelt}, volume = {Bd. 50}, journal = {Energiewirtschaftliche Tagesfragen : et ; Zeitschrift f{\"u}r Energiewirtschaft, Recht, Technik und Umwelt}, number = {H. 11}, issn = {0013-743X}, pages = {846 -- 850}, year = {2000}, language = {de} } @article{Alt1989, author = {Alt, Helmut}, title = {Zinsberechnung nach dem Sparbuch-Modell}, 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}, pages = {vom 22.3.1989}, year = {1989}, language = {de} } @article{Alt1989, author = {Alt, Helmut}, title = {Die Bedeutung des Effektivzinses in der Finanzwirtschaft}, series = {Betriebs-Berater : BB : Beil. 14 Finanz-Berater}, journal = {Betriebs-Berater : BB : Beil. 14 Finanz-Berater}, issn = {0340-7926}, pages = {31 -- 32}, year = {1989}, language = {de} } @article{Alt1989, author = {Alt, Helmut}, title = {Einfluß der Kontof{\"u}hrungsmodelle auf den Effektivzins und die Restschuld bei Annuit{\"a}tendarlehen}, series = {Betriebs-Berater : BB : Beil. 14 Finanz-Berater}, journal = {Betriebs-Berater : BB : Beil. 14 Finanz-Berater}, issn = {0340-7926}, pages = {32 -- 37}, year = {1989}, language = {de} } @article{Alt2002, author = {Alt, Helmut}, title = {Belieferung von Kunden in fremden Netzgebieten}, series = {EW : das Magazin f{\"u}r die Energie-Wirtschaft}, volume = {Bd. 101}, journal = {EW : das Magazin f{\"u}r die Energie-Wirtschaft}, number = {H. 1/2}, issn = {0013-5496}, pages = {26 -- 35}, year = {2002}, 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} } @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} } @misc{Alt2016, author = {Alt, Helmut}, title = {Energiewende zwischen Wunsch und Wirklichkeit : Von der Grundlastdeckung zur L{\"u}ckenlastdeckung}, pages = {42 Folien}, year = {2016}, abstract = {Folien des Vortrags. VDI-Bezirksverband Dresden, Arbeitskreis Energietechnik, am Montag, 05.09.2016}, 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} } @book{Altherr2016, author = {Altherr, Lena}, title = {Algorithmic System Design under Consideration of Dynamic Processes}, publisher = {Shaker}, address = {Aachen}, isbn = {978-3-8440-4848-3}, pages = {94}, year = {2016}, abstract = {Nach Stand von Wissenschaft und Technik werden Komponenten hinsichtlich ihrer Eigenschaften, wie Lebensdauer oder Energieeffizienz, optimiert. Allerdings k{\"o}nnen selbst hervorragende Komponenten zu ineffizienten oder instabilen Systemen f{\"u}hren, wenn ihr Zusammenspiel nur unzureichend ber{\"u}cksichtigt wird. Eine Systembetrachtung schafft ein gr{\"o}ßeres Optimierungspotential - dem erh{\"o}hten Potential steht jedoch auch ein erh{\"o}hter Komplexit{\"a}tsgrad gegen{\"u}ber. Die vorliegende Arbeit ist im Rahmen des Sonderforschungsbereichs 805 entstanden, dessen Ziel die Beherrschung von Unsicherheit in Systemen des Maschinenbaus ist. Die Arbeit zeigt anhand eines realen Systems aus dem Bereich der Hydraulik, wie Unsicherheit in der Entwicklungsphase beherrscht werden kann. Hierbei ist neu, dass die durch den sp{\"a}teren Betrieb zu erwartende Systemdegradation eines jeden m{\"o}glichen Systemvorschlags antizipiert werden kann. Dadurch k{\"o}nnen Betriebs- und Wartungskosten vorausgesagt und minimiert werden und durch eine optimale Betriebs- und Wartungsstrategie die Verf{\"u}gbarkeit des Systems garantiert werden. Wesentliche Fragen bei der optimalen Auslegung des betrachteten hydrostatischen Getriebes sind dessen physikalische Modellierung, die Darstellung des Optimierungsproblems als gemischt-ganzzahliges lineares Programm, und dessen algorithmische Behandlung zur L{\"o}sungsfindung. Hierzu werden Heuristiken zum schnelleren Auffinden sinnvoller Systemtopologien vorgestellt und mittels mathematischer Dekomposition eine Bewertung des dynamischen Verschleiß- und Wartungsverlaufs m{\"o}glicher Systemvorschl{\"a}ge vorgenommen. Die Arbeit stellt die Optimierung technischer Systeme an der Schnittstelle von Mathematik, Informatik und Ingenieurwesen sowohl gr{\"u}ndlich als auch anschaulich und nachvollziehbar dar.}, language = {en} } @article{AltherrBroetzDietrichetal.2018, author = {Altherr, Lena and Br{\"o}tz, Nicolas and Dietrich, Ingo and Gally, Tristan and Geßner, Felix and Kloberdanz, Hermann and Leise, Philipp and Pelz, Peter Franz and Schlemmer, Pia and Schmitt, Andreas}, title = {Resilience in mechanical engineering - a concept for controlling uncertainty during design, production and usage phase of load-carrying structures}, series = {Applied Mechanics and Materials}, volume = {885}, journal = {Applied Mechanics and Materials}, publisher = {Trans Tech Publications}, address = {B{\"a}ch}, isbn = {1662-7482}, doi = {10.4028/www.scientific.net/AMM.885.187}, pages = {187 -- 198}, year = {2018}, abstract = {Resilience as a concept has found its way into different disciplines to describe the ability of an individual or system to withstand and adapt to changes in its environment. In this paper, we provide an overview of the concept in different communities and extend it to the area of mechanical engineering. Furthermore, we present metrics to measure resilience in technical systems and illustrate them by applying them to load-carrying structures. By giving application examples from the Collaborative Research Centre (CRC) 805, we show how the concept of resilience can be used to control uncertainty during different stages of product life.}, language = {en} }