Výsledky vyhledávání

A combination of microendoscopy and spectrophotometry allowing real-time analysis of microcirculatory parameters during in vivo observations

Autor: J Hoper, R H W Funk

Publikováno v: Physiological Measurement. 15:333-337

A combination of microendoscopy (which is a modification of endoscopy with fine rigid endoscopes) and spectrophotometry (which analyses on line the remission spectra from the endoscopic picture) is presented. This setup allows the endoscopic in vivo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d199f784329eae998e15c501195140d4
https://doi.org/10.1088/0967-3334/15/3/012

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Use of an oxygen multiwire surface electrode for the direct measurement of the distribution of alveolar PO2 at different inspired oxygen concentrations

Autor: L Plasswilm, J Hoper

Publikováno v: Clinical physics and physiological measurement : an official journal of the Hospital Physicists' Association, Deutsche Gesellschaft fur Medizinische Physik and the European Federation of Organisations for Medical Physics. 13(3)

Experiments were performed in six anaesthetised, mechanically ventilated rabbits. After thoracotomy, a multiwire surface PO2 electrode was placed at the pleural surface by means of a special holder. The local distribution of PO2 was investigated at d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e38c69d11404539053cafe97d42aa451
https://pubmed.ncbi.nlm.nih.gov/1424476

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Investigation of Microvessel Density after Irradiation

Autor: L. Plasswilm, J. Höper, N. Cordes, A. Tannapfel, J. Hoper

Publikováno v: Radiation Research. 151:454

It is believed that malignant cell populations need the development of microvessels to grow and metastasize. The aim of our investigation was to find out whether gamma irradiation can affect proliferation of endothelial cells and thus can affect micr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ccedcf2bfb66242c37a81afc566c999d
https://doi.org/10.2307/3579833

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High-speed creep effects in magnetic films

Autor: J. Hoper, W. Kayser

Publikováno v: IEEE Transactions on Magnetics. 4:669-674

Creep measurements were made on single domain walls in thin magnetic films using high-speed pulses with variable rise and fall times (0.4 ns to >1 \mu s) and durations ( \lsim 20 ns, whereas for longer rise times the Bloch to Neel wall transition app

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75401f1b8369650aeac3bfb605caf079
https://doi.org/10.1109/tmag.1968.1066377

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A study of noncoherent rotational switching for thin magnetic films

Autor: J. Hoper

Publikováno v: IEEE Transactions on Magnetics. 3:166-170

Thin magnetic film switching was investigated for fields near those needed for pure rotation. Experimentally the films were switched using

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ed4cf14f8e97a7065320a1de771c9e61
https://doi.org/10.1109/tmag.1967.1066027

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Oxygen delivery to the anterior chamber of the eye--a novel function of the anterior iris surface

Autor: Johannes W. Rohen, R. H. W. Funk, J. Hoper, Z. Zagorski

Publikováno v: Current eye research. 8(7)

By means of po2-needle electrodes the oxygen tension in the anterior chamber of rabbit and cynomolgus monkey eyes was measured and correlated with the topography. It can be clearly shown that the po2 in front of the pupil is substantially lower than

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffb2c08f9ba52747275dc05c0264b224
https://pubmed.ncbi.nlm.nih.gov/2791616

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