@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{ThielemannBock1992, author = {Thielemann, Frank and Bock, J{\"u}rgen}, title = {Ost-West-Joint-ventures : Erfahrungen beim Aufbau und Management deutsch-russischer Gemeinschaftsunternehmen / Bock, J{\"u}rgen; Thielemann, Frank}, publisher = {Inst. f{\"u}r Angewandte Innovationsforschung e.V.}, address = {Bochum}, pages = {47 S.}, year = {1992}, language = {de} } @book{ThielemannStaudtTobergetal.1992, author = {Thielemann, Frank and Staudt, Erich and Toberg, M. and Linn{\´e}, H.}, title = {Kooperationshandbuch : ein Leitfaden f{\"u}r die Unternehmenspraxis / Staudt, E.; Toberg, M.; Linn{\´e}, H.; Bock, J.; Thielemann, F.}, publisher = {VDI-Verl. [u.a.]}, address = {D{\"u}sseldorf}, isbn = {3-18-401217-4}, year = {1992}, language = {de} } @article{ThielemannBock1993, author = {Thielemann, Frank and Bock, J{\"u}rgen}, title = {Aufbau und Management deutsch-russischer Joint-ventures. Bock J{\"u}rgen; Thielemann, Frank}, series = {Mit Innovation vom Plan zum Markt}, journal = {Mit Innovation vom Plan zum Markt}, address = {Bochum}, pages = {111 -- 135}, year = {1993}, language = {de} } @article{ThielemannSchaffner1993, author = {Thielemann, Frank and Schaffner, M.}, title = {Innovationswiderst{\"a}nde bei der Einf{\"u}hrung neuer Tech­nologien. Schaffner, M.; Thielemann, F.}, series = {Deutscher Drucker. 1992/93 (1993), H. 38}, journal = {Deutscher Drucker. 1992/93 (1993), H. 38}, isbn = {0012-1096}, pages = {g12 -- ff}, year = {1993}, language = {de} } @article{ThielemannSchaffner1993, author = {Thielemann, Frank and Schaffner, M.}, title = {Innovationswiderst{\"a}nde bei der Einf{\"u}hrung neuer Tech­nologien. Schaffner, M.; Thielemann, F.}, series = {Deutscher Drucker. 1992/93 (1993), H. 42}, journal = {Deutscher Drucker. 1992/93 (1993), H. 42}, isbn = {0012-1096}, pages = {g15 -- ff}, year = {1993}, language = {de} } @article{ThielemannSchaffner1993, author = {Thielemann, Frank and Schaffner, M.}, title = {Wie beurteilen die F{\"u}hrungskr{\"a}fte der Branche den derzeitigen und zuk{\"u}nftigen Innovationsdruck? Expertenmeinung zum Thema Innovationen in der Druckindustrie: M. Schaffner, F. Thielemann}, series = {Management im innovatorischen Wandel : Arbeit und Technik in der Druckindustrie / Heinz-Reiner Treichel ; Kurt-Georg Ciesinger}, journal = {Management im innovatorischen Wandel : Arbeit und Technik in der Druckindustrie / Heinz-Reiner Treichel ; Kurt-Georg Ciesinger}, publisher = {Polygraph-Verl.}, address = {Frankfurt am Main}, isbn = {3-87641-262-5}, pages = {21 -- 26}, year = {1993}, language = {de} } @article{HartungHusoy1993, author = {Hartung, Frank and Husoy, J. H.}, title = {Wavelet and subband coding of images - A comparative study / Hartung, F. ; Husoy, J. H.}, series = {Mathematical imaging: wavelet applications in signal and image processing : 15 - 16 July 1993, San Diego, California / sponsored and publ. by SPIE - the International Society for Optical Engineering. Andrew F. Laine, chair/ed}, journal = {Mathematical imaging: wavelet applications in signal and image processing : 15 - 16 July 1993, San Diego, California / sponsored and publ. by SPIE - the International Society for Optical Engineering. Andrew F. Laine, chair/ed}, publisher = {SPIE}, address = {Bellingham, Wash.}, isbn = {081941283X}, pages = {242 -- 253}, year = {1993}, language = {en} } @article{ThielemannBock1994, author = {Thielemann, Frank and Bock, J{\"u}rgen}, title = {Organization and management of German-Russian joint ventures. Bock, J{\"u}rgen; Thielemann, Frank}, series = {International journal of technology management. 9 (1994), H. 8}, journal = {International journal of technology management. 9 (1994), H. 8}, isbn = {0267-5730}, pages = {864 -- 879}, year = {1994}, language = {en} } @book{ThielemannStaudtKriegesmann1994, author = {Thielemann, Frank and Staudt, Erich and Kriegesmann, Bernd}, title = {Joint-ventures. Staudt, Erich; Kriegesmann, Bernd; Thielemann, Frank}, publisher = {Inst. f{\"u}r Angewandte Innovationsforschung e.V.}, address = {Bochum}, pages = {29 S. : graph. Darst.}, year = {1994}, language = {en} } @book{Thielemann1994, author = {Thielemann, Frank}, title = {Sicherung der Wettbewerbsf{\"a}higkeit durch zwischenbetriebliche Kooperation}, publisher = {IBI - Ges. f{\"u}r Innovationsforschung}, address = {D{\"u}sseldorf [u.a.]}, pages = {32 Bl : graph. Darst.}, year = {1994}, language = {de} } @book{ThielemannStaudtKriegesmannetal.1994, author = {Thielemann, Frank and Staudt, Erich and Kriegesmann, Bernd and Behrendt, S.}, title = {Kooperation als Erfolgsfaktor ostdeutscher Unternehmen : Ergebnisse einer empirischen Untersuchung zur Kooperationslandschaft in Ostdeutschland / Staudt, E.; Kriegesmann, B.; Thielemann, F.; Behrendt, S.; Chalupsky, J.}, publisher = {Inst. f{\"u}r Angewandte Innovationsforschung e.V.}, address = {Bochum}, pages = {47 S. : graph. Darst.}, year = {1994}, language = {de} } @article{ThielemannChalupsky1994, author = {Thielemann, Frank and Chalupsky, J.}, title = {Der Markt verlangt nach Kooperationen}, series = {Leipziger Wirtschaft. 5 (1994), H. 6}, journal = {Leipziger Wirtschaft. 5 (1994), H. 6}, pages = {14 -- 18}, year = {1994}, language = {de} } @article{HartungHorn1995, author = {Hartung, Frank and Horn, U.}, title = {Codierung digitaler Videosignale nach dem MPEG-Standard / Hartung, F. ; Horn, U.}, series = {Mikroelektronik + Mikrosystemtechnik. 9 (1995)}, journal = {Mikroelektronik + Mikrosystemtechnik. 9 (1995)}, pages = {18 -- 23}, year = {1995}, language = {de} } @article{HartungGirodHorn1995, author = {Hartung, Frank and Girod, Bernd and Horn, Uwe}, title = {Subband Image Coding / Girod, Bernd ; Hartung, Frank ; Horn, Uwe}, series = {Subband and Wavelet Transforms: Design and Applications / ed. by Ali N. Akansu}, journal = {Subband and Wavelet Transforms: Design and Applications / ed. by Ali N. Akansu}, publisher = {Kluwer}, address = {Boston}, isbn = {0792396456}, pages = {213 -- 250}, year = {1995}, language = {en} } @book{ThielemannStaudtKriegesmann1995, author = {Thielemann, Frank and Staudt, Erich and Kriegesmann, Bernd}, title = {Qualifikationsbeschaffung im Transformationsprozeß : Ergebnisse einer empirischen Untersuchung in der Druckindustrie / Staudt, Erich; Kriegesmann, Bernd ; Thielemann, Frank}, publisher = {Inst. f{\"u}r Angewandte Innovationsforschung e.V.}, address = {Bochum}, pages = {36 S. : graph. Darst.}, year = {1995}, language = {de} } @article{ThielemannKriegesmannSchaffner1995, author = {Thielemann, Frank and Kriegesmann, Bernd and Schaffner, M.}, title = {Mit vereinten Kr{\"a}ften die Wettbewerbsf{\"a}higkeit steigern - Kooperation als Antwort auf den In­novationsdruck . Kriegesmann, B.; Thielemann, F.; Schaffner, M.}, series = {Der Druckspiegel. 50 (1995), H. 10}, journal = {Der Druckspiegel. 50 (1995), H. 10}, isbn = {0012-6500}, pages = {931 -- 935}, year = {1995}, language = {de} } @article{ThielemannStaudtKriegesmann1995, author = {Thielemann, Frank and Staudt, Erich and Kriegesmann, Bernd}, title = {Kooperation als Erfolgsfak­tor ostdeutscher Unternehmen. Ergebnisse einer empirischen Untersu­chung zur Ko­operationslandschaft in Ost­deutschland. Staudt, E.; Kriegesmann, B.; Thielemann, F.}, series = {Zeitschrift f{\"u}r Betriebswirtschaft ZfB. 65 (1995), H. 11}, journal = {Zeitschrift f{\"u}r Betriebswirtschaft ZfB. 65 (1995), H. 11}, isbn = {0044-2372}, pages = {1209 -- 1230}, year = {1995}, language = {de} } @article{MelissSpaete1995, author = {Meliß, Michael and Sp{\"a}te, Frank}, title = {Erneuerbare Energien sollen in die Bresche springen. Geld, Kraft und politisches Wollen ist gefragt}, series = {VDI-Nachrichten. Nr. 46 vom 17.11.1995}, journal = {VDI-Nachrichten. Nr. 46 vom 17.11.1995}, issn = {0042-1758}, pages = {33}, year = {1995}, language = {de} } @article{HartungGirod1996, author = {Hartung, Frank and Girod, Bernd}, title = {Statistical optimization of switched two-level quantizers with application to DPCM encoding of color video / Hartung, Frank ; Girod, Bernd}, series = {IEEE International Conference on Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996}, journal = {IEEE International Conference on Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996}, isbn = {0-7803-3192-3}, pages = {1974 -- 1977}, year = {1996}, language = {en} } @book{Thielemann1996, author = {Thielemann, Frank}, title = {Die Gestaltung von Kooperationen zwischen kleinen und mittleren Unternehmen}, address = {Bochum}, pages = {285, II S. : graph. Darst.}, year = {1996}, language = {de} } @book{ThielemannStaudt1996, author = {Thielemann, Frank and Staudt, Erich}, title = {Von der Druckindustrie zum Multimedia-Dienstleister : Kompetenz durch Innovation / Erich Staudt ; Thielemann, Frank}, publisher = {Inst. f{\"u}r Angewandte Innovationsforschung e.V.}, address = {Bochum}, pages = {40 S.:graph. Darst.}, year = {1996}, language = {de} } @book{ThielemannStaudtSchaffner1996, author = {Thielemann, Frank and Staudt, Erich and Schaffner, Michael}, title = {Strategische Kooperationen - ein Weg f{\"u}r die Druckindustrie 2000 ins Medienzeitalter? Ergebnisse einer empirischen Untersuchung zu kooperativen Gesch{\"a}ftsbeziehungen der Druckindustrie / Erich Staudt ; Frank Thielemann ; Michael Schaffner}, publisher = {Inst. f{\"u}r Angewandte Innovationsforschung e.V.}, address = {Bochum}, pages = {50 S. : graph. Darst.}, year = {1996}, language = {de} } @article{ThielemannSchaffner1996, author = {Thielemann, Frank and Schaffner, M.}, title = {Gemeinsam sind wir stark . Schaffner, M.; Thielemann, F.}, series = {Print \& Produktion. 9 (1996), H. 10}, journal = {Print \& Produktion. 9 (1996), H. 10}, isbn = {0944-7482}, pages = {28 -- f.}, year = {1996}, language = {de} } @book{ThielemannStaudtKriegesmannetal.1996, author = {Thielemann, Frank and Staudt, Erich and Kriegesmann, Bernd and Behrendt, S.}, title = {Kooperationsleitfaden : Planungshilfen und Checklisten zum Management zwischenbetrieblicher Kooperation / Staudt, E.; Kriegesmann, B.; Thielemann, F.; Behrendt, S.}, publisher = {Raabe}, address = {Stuttgart [u.a.]}, isbn = {3-88649-188-9}, pages = {II, 86 S. : graph. Darst.}, year = {1996}, language = {de} } @book{Thielemann1996, author = {Thielemann, Frank}, title = {Die Gestaltung von Kooperationen kleiner und mittlerer Unternehmen}, publisher = {IAI, Institut f{\"u}r Angewandte Innovationsforschung}, address = {Bochum}, isbn = {3-928854-06-2}, pages = {II, 285 S.: graph. Darst}, year = {1996}, language = {de} } @article{ThielemannSchaffner1996, author = {Thielemann, Frank and Schaffner, M.}, title = {Vom Einzelk{\"a}mpfertum zum kooperativen Kundenservice}, series = {Polygraph. 49 (1996), H. 23-24}, journal = {Polygraph. 49 (1996), H. 23-24}, isbn = {0032-3842}, pages = {40 -- 42}, year = {1996}, language = {de} } @inproceedings{MelissSpaete1996, author = {Meliß, Michael and Sp{\"a}te, Frank}, title = {Solar-Campus J{\"u}lich - an interdisciplinary project}, series = {EuroSun '96 ; 10. Internationales Sonnenforum : proceedings. Bd 3}, booktitle = {EuroSun '96 ; 10. Internationales Sonnenforum : proceedings. Bd 3}, publisher = {DGS-Sonnenenergie}, address = {M{\"u}nchen}, pages = {1281 -- 1285}, year = {1996}, language = {en} } @article{MelissSpaete1996, author = {Meliß, Michael and Sp{\"a}te, Frank}, title = {Sonne, Wind und Biomasse zur umweltfreundlichen Energieversorgung}, series = {Wohnung + Gesundheit. Fachzeitschrift f{\"u}r {\"o}kologisches Bauen + Leben. 18 (1996), Nr. 79}, journal = {Wohnung + Gesundheit. Fachzeitschrift f{\"u}r {\"o}kologisches Bauen + Leben. 18 (1996), Nr. 79}, issn = {0176-0513}, pages = {47 -- 50}, year = {1996}, language = {de} } @book{BreitbachFrankSchubert1996, author = {Breitbach, Gerd and Frank, D. and Schubert, F.}, title = {Bestimmung des Verformungs- und Versagensverhaltens von stengelkristallinen Gasturbinenschaufeln aus IN 792 DS / D. Frank ; F. Schubert ; G. Breitbach ...}, publisher = {Forschungszentrum J{\"u}lich, Zentralbibliothek}, address = {J{\"u}lich}, pages = {139 S. : Ill., graph. Darst.}, year = {1996}, language = {de} } @book{EngelnMuellgesUhlig1996, author = {Engeln-M{\"u}llges, Gisela and Uhlig, Frank}, title = {Numerical algorithms with C}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {3-540-60530-0}, pages = {XXII, 596 S. : graph. Darst. + 1 CD-ROM}, year = {1996}, language = {en} } @book{EngelnMuellgesUhlig1996, author = {Engeln-M{\"u}llges, Gisela and Uhlig, Frank}, title = {Numeric Algorithms with Fortran}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {3-540-60529-0}, pages = {XXII, 602 S. : Ill., graph. Darst. + 1 CD-ROM}, year = {1996}, language = {en} } @article{HartungGirod1997, author = {Hartung, Frank and Girod, Bernd}, title = {Copyright protection in video delivery networks by watermarking of pre-compressed video / Hartung, Frank ; Girod, Bernd}, series = {Multimedia Applications, Services and Techniques - EMAST ´97 : Second European Conference Milan, Italy, May 21-23, 1997 Proceedings / Fdida, Serge ; Morganti, Michele}, journal = {Multimedia Applications, Services and Techniques - EMAST ´97 : Second European Conference Milan, Italy, May 21-23, 1997 Proceedings / Fdida, Serge ; Morganti, Michele}, publisher = {Springer}, address = {Berlin}, pages = {423 -- 436}, year = {1997}, language = {en} } @article{ThielemannStaudt1997, author = {Thielemann, Frank and Staudt, Erich}, title = {Kompetenz zur Innovation: Vom Druckbetrieb zum Multimedia-Dienstleister . Staudt, E.; Thielemann, F.}, series = {News Letter (der Gesellschaft f{\"u}r Wirtschaftsf{\"o}rde­rung Duisburg) (1997)}, journal = {News Letter (der Gesellschaft f{\"u}r Wirtschaftsf{\"o}rde­rung Duisburg) (1997)}, pages = {3 -- 3}, year = {1997}, language = {de} } @article{ThielemannStaudt1997, author = {Thielemann, Frank and Staudt, Erich}, title = {Reicht die Kompetenz zur Innovation? Staudt, E.; Thielemann, F.}, series = {OP DruckMagazin. 39 (1997), H. 10}, journal = {OP DruckMagazin. 39 (1997), H. 10}, isbn = {0030-0594}, pages = {30 -- 32}, year = {1997}, language = {de} } @article{Thielemann1997, author = {Thielemann, Frank}, title = {Chancen durch Online-Dienste?}, series = {OP DruckMagazin. 39 (1997), H. 1-2}, journal = {OP DruckMagazin. 39 (1997), H. 1-2}, isbn = {0030-0594}, pages = {26 -- f.}, year = {1997}, language = {de} } @article{ThielemannStaudtKriegesmann1997, author = {Thielemann, Frank and Staudt, Erich and Kriegesmann, Bernd}, title = {Neuformierung von Wertsch{\"o}pfungsketten: Das Beispiel Druckindustrie . Staudt, Erich; Kriegesmann, Bernd; Thielemann, Frank}, series = {Zeitschrift F{\"u}hrung und Organisation. 96 (1997), H. 2}, journal = {Zeitschrift F{\"u}hrung und Organisation. 96 (1997), H. 2}, isbn = {0044-3212}, pages = {75 -- 80}, year = {1997}, language = {de} } @article{WeckesserHufnagelZiemonsetal.1997, author = {Weckesser, Matthias and Hufnagel, Andreas and Ziemons, Karl and Grießmeier, Martin and Sonnenberg, Frank and Hackl{\"a}nder, Thomas and Langen, Karl-J. and Holschbach, Markus and Elger, Christian E. and M{\"u}ller-G{\"a}rtner, Hans-W.}, title = {Effect of partial volume correction on muscarinic cholinergic receptor imaging with single-photon emission tomography in patients with temporal lobe epilepsy}, series = {European Journal of Nuclear Medicine}, volume = {24}, journal = {European Journal of Nuclear Medicine}, number = {9}, isbn = {1619-7089}, pages = {1156 -- 1161}, year = {1997}, abstract = {Animal experiments and preliminary results in humans have indicated alterations of hippocampal muscarinic acetylcholine receptors (mAChR) in temporal lobe epilepsy. Patients with temporal lobe epilepsy often present with a reduction in hippocampal volume. The aim of this study was to investigate the influence of hippocampal atrophy on the quantification of mAChR with single photon emission tomography (SPET) in patients with temporal lobe epilepsy. Cerebral uptake of the muscarinic cholinergic antagonist [123I]4-iododexetimide (IDex) was investigated by SPET in patients suffering from temporal lobe epilepsy of unilateral (n=6) or predominantly unilateral (n=1) onset. Regions of interest were drawn on co-registered magnetic resonance images. Hippocampal volume was determined in these regions and was used to correct the SPET results for partial volume effects. A ratio of hippocampal IDex binding on the affected side to that on the unaffected side was used to detect changes in muscarinic cholinergic receptor density. Before partial volume correction a decrease in hippocampal IDex binding on the focus side was found in each patient. After partial volume no convincing differences remained. Our results indicate that the reduction in hippocampal IDex binding in patients with epilepsy is due to a decrease in hippocampal volume rather than to a decrease in receptor concentration.}, language = {en} } @incollection{MelissSpaete1997, author = {Meliß, Michael and Sp{\"a}te, Frank}, title = {Berechnung von Sonnenstand und -strahlung}, series = {Regenerative Energiequellen : Praktikum / ed. Michael Meliß}, booktitle = {Regenerative Energiequellen : Praktikum / ed. Michael Meliß}, publisher = {Springer}, address = {Berlin}, isbn = {3-540-63218-2}, doi = {10.1007/978-3-642-60864-3_2}, pages = {5 -- 22}, year = {1997}, language = {de} } @incollection{MelissSpaete1997, author = {Meliß, Michael and Sp{\"a}te, Frank}, title = {Auslegung von solarthermischen Anlagen}, series = {Regenerative Energiequellen : Praktikum / ed. Michael Meliß}, booktitle = {Regenerative Energiequellen : Praktikum / ed. Michael Meliß}, publisher = {Springer}, address = {Berlin}, isbn = {3-540-63218-2}, doi = {10.1007/978-3-642-60864-3_3}, pages = {23 -- 47}, year = {1997}, language = {de} } @article{Thielemann1998, author = {Thielemann, Frank}, title = {Druckindustrielle Innovation}, series = {Der Siebdruck. 47 (1998), H. 4}, journal = {Der Siebdruck. 47 (1998), H. 4}, isbn = {0178-2835}, pages = {32 -- ff}, year = {1998}, language = {de} } @article{Thielemann1998, author = {Thielemann, Frank}, title = {Mit vereinten Kr{\"a}ften}, series = {Trockenbau, Akustik : Magazin f{\"u}r Planung und Ausf{\"u}hrung. 15 (1998), H. 5}, journal = {Trockenbau, Akustik : Magazin f{\"u}r Planung und Ausf{\"u}hrung. 15 (1998), H. 5}, isbn = {0179-8006}, pages = {60 -- 68}, year = {1998}, language = {de} } @article{Thielemann1998, author = {Thielemann, Frank}, title = {Mit strategischen Allianzen ins n{\"a}chste Jahrtausend}, series = {Druckspiegel. 53 (1998), H. 5}, journal = {Druckspiegel. 53 (1998), H. 5}, isbn = {0012-6500}, pages = {21 -- 24}, year = {1998}, language = {de} } @article{ThielemannStaudtKriegesmann1998, author = {Thielemann, Frank and Staudt, Erich and Kriegesmann, Bernd}, title = {Kooperationsverhalten in der Druckindustrie - zwischen Bestandssicherung und Offensive. Staudt, Erich; Kriegesmann, Bernd; Thielemann, Frank}, series = {Die Betriebswirtschaft. 58 (1998), H. 6}, journal = {Die Betriebswirtschaft. 58 (1998), H. 6}, isbn = {0342-7064}, pages = {803 -- 815}, year = {1998}, language = {de} } @book{ThielemannStaudt1998, author = {Thielemann, Frank and Staudt, Erich}, title = {Innovation durch strategische Allianzen : ein Wegweiser f{\"u}r die Druck- und Medienbranche . Staudt, Erich; Thielemann, Frank}, publisher = {IAI, Inst. f{\"u}r Angewandte Innovationsforschung}, address = {Bochum}, isbn = {3-928854-14-3}, pages = {96 Bl.: graph. Darst.}, year = {1998}, language = {de} } @article{WeckesserGriessmeierSchmidtetal.1998, author = {Weckesser, Martin and Grießmeier, Martin and Schmidt, Daniela and Sonnenberg, Frank and Ziemons, Karl and Kemna, Lars and Holschbach, Marcus and Langen, Karl-J. and M{\"u}ller-G{\"a}rtner, Hans-W.}, title = {Iodine-123 α-methyl tyrosine single-photon emission tomography of cerebral gliomas: standardised evaluation of tumour uptake and extent}, series = {European Journal of Nuclear Medicine}, volume = {25}, journal = {European Journal of Nuclear Medicine}, number = {2}, isbn = {1619-7089}, pages = {150 -- 156}, year = {1998}, abstract = {Single-photon emission tomography (SPET) with the amino acid analogue l-3-[123I]iodo-α-methyl tyrosine (IMT) is helpful in the diagnosis and monitoring of cerebral gliomas. Radiolabelled amino acids seem to reflect tumour infiltration more specifically than conventional methods like magnetic resonance imaging and computed tomography. Automatic tumour delineation based on maximal tumour uptake may cause an overestimation of mean tumour uptake and an underestimation of tumour extension in tumours with circumscribed peaks. The aim of this study was to develop a program for tumour delineation and calculation of mean tumour uptake which takes into account the mean background activity and is thus optimised to the problem of tumour definition in IMT SPET. Using the frequency distribution of pixel intensities of the tomograms a program was developed which automatically detects a reference brain region and draws an isocontour region around the tumour taking into account mean brain radioactivity. Tumour area and tumour/brain ratios were calculated. A three-compartment phantom was simulated to test the program. The program was applied to IMT SPET studies of 20 patients with cerebral gliomas and was compared to the results of manual analysis by three different investigators. Activity ratios and chamber extension of the phantom were correctly calculated by the automatic analysis. A method based on image maxima alone failed to determine chamber extension correctly. Manual region of interest analysis in patient studies resulted in a mean inter-observer standard deviation of 8.7\%±6.1\% (range 2.7\%-25.0\%). The mean value of the results of the manual analysis showed a significant correlation to the results of the automatic analysis (r = 0.91, P<0.0001 for the uptake ratio; r = 0.87, P<0.0001 for the tumour area). We conclude that the algorithm proposed simplifies the calculation of uptake ratios and may be used for observer-independent evaluation of IMT SPET studies. Three-dimensional tumour recognition and transfer to co-registered morphological images based on this program may be useful for the planning of surgical and radiation treatment.}, language = {en} } @inproceedings{RepschlaegerHafnerMelissetal.1998, author = {Repschl{\"a}ger, Horst and Hafner, Bernd and Meliß, Michael and Philippi, Helga and Sp{\"a}te, Frank}, title = {Vergleich verschiedener Netzvarianten am Beispiel des geplanten solaren Nahw{\"a}rmesystems f{\"u}r den Solar-Campus J{\"u}lich}, series = {8. Symposium Thermische Solarenergie : Ort: Bildungszentrum der Hanns-Seidel-Stiftung, Kloster Banz, Staffelstein. Termin: 13. - 15. Mai 1998 / OTTI, Technologie-Kolleg}, booktitle = {8. Symposium Thermische Solarenergie : Ort: Bildungszentrum der Hanns-Seidel-Stiftung, Kloster Banz, Staffelstein. Termin: 13. - 15. Mai 1998 / OTTI, Technologie-Kolleg}, publisher = {OTTI}, address = {Regensburg}, pages = {310 -- 314}, year = {1998}, language = {de} } @inproceedings{SpaeteWollscheidMeliss1998, author = {Sp{\"a}te, Frank and Wollscheid, Georg and Meliß, Michael}, title = {Erdreichw{\"a}rmetauscher im Solar-Campus J{\"u}lich}, series = {Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule K{\"o}ln / 11. Internationales Sonnenforum}, booktitle = {Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule K{\"o}ln / 11. Internationales Sonnenforum}, publisher = {Solar Promotion}, address = {M{\"u}nchen}, organization = {Deutsche Gesellschaft f{\"u}r Sonnenenergie}, pages = {591 -- 598}, year = {1998}, language = {de} } @inproceedings{SpaeteHubrichKeipetal.1998, author = {Sp{\"a}te, Frank and Hubrich, J{\"o}rg and Keip, Wolfgang and Meliß, Michael}, title = {Der Solar-Campus J{\"u}lich - Stand der Arbeiten}, series = {Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule K{\"o}ln / 11. Internationales Sonnenforum}, booktitle = {Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule K{\"o}ln / 11. Internationales Sonnenforum}, publisher = {Solar Promotion}, address = {M{\"u}nchen}, organization = {Deutsche Gesellschaft f{\"u}r Sonnenenergie}, pages = {666 -- 672}, year = {1998}, language = {de} } @inproceedings{RazenSpaeteMelissetal.1998, author = {Razen, Manfred and Sp{\"a}te, Frank and Meliß, Michael and Breuer, Maria and Hubrich, J{\"o}rg and Rischert, Christa}, title = {Aus-, Fort- und Weiterbildung am Solar-Institut J{\"u}lich}, series = {Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule K{\"o}ln / 11. Internationales Sonnenforum}, booktitle = {Deutschlands Weg in eine solare Zukunft : Tagungsband; 26. - 30. Juni 1998 Fachhochschule K{\"o}ln / 11. Internationales Sonnenforum}, publisher = {Solar Promotion}, address = {M{\"u}nchen}, organization = {Deutsche Gesellschaft f{\"u}r Sonnenenergie}, pages = {1071 -- 1078}, year = {1998}, language = {de} }