107,702 research outputs found
Semi-Automatic Acquisition of Visual Knowledge
No full textHeidemann G. Semi-Automatic Acquisition of Visual Knowledge. In: Geldermann J, Rommelfanger H, eds. Einsatz von Fuzzy Sets, Neuronalen Netzen und Künstlicher Intelligenz in industrieller Produktion und Umweltforschung. Fortschritt-Berichte VDI. Vol 725. Düsseldorf: VDI; 2003: 1-14
The Super-Spinner: a low cost animal cell culture bioreactor for the CO 2 incubator
No full textHeidemann R, Riese U, Lütkemeyer D, Büntemeyer H, Lehmann J. The Super-Spinner: a low cost animal cell culture bioreactor for the CO 2 incubator. Cytotechnology. 1994;14(1):1-9.The production of small quantities of monoclonal antibodies and recombinant proteins was carried out using a new low cost production system, the Super Spinner. Into a 1 1 standard Duran(R) flask a membrane stirrer equipped with a polypropylene hollow fiber membrane was installed to improve the oxygen supply by bubble-free aeration. The aeration was facilitated by using the CO2 conditioned incubator gas, which was pumped through the membrane stirrer via a small membrane pump. The maximal oxygen transfer rate (OTR(max)) of the Super Spinner was detected. For this purpose one spinner flask was equipped with an oxygen electrode. The OTR(max) was measured by the dynamic method. The ratio of membrane length to culture volume was adapted corresponding to the oxygen uptake rate of the cells according to the desired cell density. A balanced nutrient supply resulted in an optimal formation and yield of products
Objekterkennung mit Neuronalen Netzen
No full textHeidemann G, Ritter H. Objekterkennung mit Neuronalen Netzen. Sonderforschungsbereich Situierte Künstliche Kommunikatoren. Bielefeld: Univ. Bielefeld; 1996
Interactive Online Learning
No full textHeidemann G, Bekel H, Bax I, Ritter H. Interactive Online Learning. Pattern Recognition and Image Analysis. 2005;15(1):55-58
Fronts between Hopf- and Turing-type domains in a two-component reaction-diffusion system
No full textHeidemann G, Bode M, Purwins H-G. Fronts between Hopf- and Turing-type domains in a two-component reaction-diffusion system. Physics Letters A. 1993;177:225-230
Parasitoids of Leptoglossus occidentalis Heidemann (Heteroptera: Coreidae) in British Columbia
No full textEggs of the western conifer seed bug, Leptoglossus occidentalis Heidemann, were parasitized in the field in British Columbia, Canada, by Gryon pennsylvanicum (Ashmead), Anastatus pearsalli Ashmead and an unidentified Ooencyrtus spp. Ashmead. Leptoglossus occidentalis represents a new host record for all three parasitoids. Gryon pennsylvanicum has not previously been reported in Canada
PINE SEED BUG (LEPTOGLOSSUS OCCIDENTALIS HEIDEMANN) IN THE TERRITORY OF THE BOTANICAL GARDEN OF THE H. S. SKOVORODA KhNPU
No full textМетою дослідження є сосновий насіннєвий клоп (Leptoglossus occidentalis Heidemann) на території ботанічного саду ХНПУ імені Г. С. Сковороди. В європейських країнах клоп не набув статусу карантинного виду, так як пошкоджує частину насіння, не завдаючи значної шкоди лісовому господарству. Але цей шкідник має особливість: він є переносником патогенного гриба Sphaeropsis sapinea, що викликає небезпечне захворювання - діплодіевий некроз (диплодіоз) сосни.
The purpose of the study is the pine seed bug (Leptoglossus occidentalis Heidemann) on the territory of the botanical garden of the H. S. Skovoroda KhNPU. In European countries, the bug has not acquired the status of a quarantine species, as it damages part of the seeds without causing significant harm to forestry. But this pest has a peculiarity: it is a carrier of the pathogenic fungus Sphaeropsis sapinea, which causes a dangerous disease - diplodic necrosis (diplodiosis) of pine
On the Contribution of Compression to Visual Pattern Recognition
No full textHeidemann G, Ritter H. On the Contribution of Compression to Visual Pattern Recognition. In: VISAPP 2008 - 3rd Int’l Conf on Comp. Vision Theory and Applications. Vol 2. 2008: 83-89
Representing Procedural Knowledge for Semantic Networks using Neural Nets
No full textMoratz R, Heidemann G, Posch S, Ritter H, Sagerer G. Representing Procedural Knowledge for Semantic Networks using Neural Nets. In: Proc. 9th Scandinavian Conference on Image Processing. 1995: 819-828
Combining Gestural and Contact Information for Visual Guidance of Multi-Finger Grasps
No full textHeidemann G, Ritter H. Combining Gestural and Contact Information for Visual Guidance of Multi-Finger Grasps. In: Verleysen M, ed. Proceedings of the 10th European Symposium on Artificial Neural Networks : ESANN '2002. Bruges, Belgium: d-side publications; 2002: 301-306
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