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Digitale Medien

Industrial freeform generation of microtools by laser micro sintering (2005)

Regenfuss, P. ; Hartwig, L. ; Klötzer, S. ; [weitere]

Bingley : Emerald

Rapid prototyping journal 11 (2005), S. 18-25

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ISSN: 1355-2546

Quelle: Emerald Fulltext Archive Database 1994-2005

Thema: Maschinenbau

Notizen: Purpose - Examples are given for the technical applicability of a novel development of selective laser sintering called "laser micro sintering". Design/methodology/approach - Together with a specific method to produce powder layers, the controlled application of pulsed radiation for the processing of sub-µm grained metal powders was exploited to produce micro-tools with a heretofore unattained structural resolution. Findings - High resolution micro bodies are displayed. Instruments could be generated which proved to fulfil their designation as grip bits for micro manipulators. The micro-bodies can be generated detachably from or firmly fixed to the construction substrate. The material of the generated bodies withstands the traction forces when used as an injection mold for polymer casts. Research limitations/implications - Densities and structural resolutions can still be improved especially with a newly updated version of the equipment. Laser micro sintering of materials, other than metal (e.g. ceramics), has still to be developed. The introduction of the equipment and the technique into the market is on its way. Practical implications - Micro-tools can be generated with an overall structural resolution of 30?µm and with all the advantages of a freedom technique. Originality/value - The paper informs the technical community on a new novel modification of the freeform technique selective laser sintering, demonstrating the solution of some problems that have hampered the progress of metal laser into resolution ranges below 100?µm. It also supplies evidence for the technical applicability.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1108/13552540510573356

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Digitale Medien

Diffusion-controlled association of a dye, 1-anilinonaphthalene-8-sulfonic acid, to a protein, bovine serum albumin, using a fast-flow microsecond mixer and stopped-flow

Regenfuss, P. ; Clegg, R.M.

Amsterdam : Elsevier

Biophysical Chemistry 26 (1987), S. 83-89

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ISSN: 0301-4622

Schlagwort(e): 1-Anilinonaphthalene-8-sulfonic acid ; Binding kinetics ; Bovine serum albumin ; Fast-flow mixer ; Protein-ligand binding ; Stopped-flow

Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Thema: Biologie , Chemie und Pharmazie , Physik

Materialart: Digitale Medien

URL: http://linkinghub.elsevier.com/retrieve/pii/0301-4622(87)80010-8

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Digitale Medien

Eine einfache orotracheale Intubationstechnik beim Versuchskaninchen (1971)

Köbler, H. ; Regenfuss, P.

Springer

Clinical and experimental medicine 154 (1971), S. 325-327

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ISSN: 1591-9528

Schlagwort(e): Anaesthesia ; Rabbit ; Intubation technique ; Orotracheal ; Anaesthesie ; Kaninchen ; Intubationstechnik ; Orotracheal

Quelle: Springer Online Journal Archives 1860-2000

Thema: Medizin

Beschreibung / Inhaltsverzeichnis: Zusammenfassung Im Vergleich zu anderen Laboratoriumstieren ist die Narkose beim Kaninchen schwierig. Insbesondere ist aus anatomischen Gründen eine orotracheale Intubation weder blind noch unter Sicht praktisch möglich. Es wird eine Intubationstechnik beschrieben, mit der es möglich ist, rasch und sicher die orotracheale Intubation durchzuführen.

Notizen: Summary Compared with other laboratory animals the rabbit presents especial difficulties regarding anaesthesia. For anatomical reasons the blind intubation technique is in most cases impracticable and intubation under sight is possible only with the help of very special laryngoscopes. The authors describe a quick and simple method of intubation by which a catheter is inserted into the trachea in retrograde position and the tracheal tube is then introduced orotracheally.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF02045098

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