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Über Größe und Ladung des Polyelektrolytsystems Poly-N-Vinylpyrrolidon/Blankophor BAAus der Dissertation von Frank Preußer, Technische Universität München. II. Die Änderung des Reibungskoeffizienten mit der Ladungsdichte und der Salzkonzentration (1974)

Killmann, Von E. ; Preußer, F.

Weinheim : Wiley-Blackwell

Angewandte Makromolekulare Chemie 37 (1974), S. 199-214

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ISSN: 0003-3146

Keywords: Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Physics

Description / Table of Contents: In part I of this series the results of sedimentation velocity experiments with the polyelectrolyte Polyvinylpyrrolidone-Blancophor are described. The combination of the Svedberg formula and an equation of Tiselius describing the charge- and salt-effects gives the possibility to describe the change of the frictional coefficient as a function of charge and screening quantitatively. The resulting frictional coefficients resp. the dimensions of the coil of this polyelectrolyte change in a wide range with the charge density and the counterion concentration.

Notes: Im Teil I dieser Publikationsreihe wurden die Ergebnisse aus den Sedimentationsgeschwindigkeitsexperimenten an dem Polyelektrolyten Polyvinylpyrrolidon-Blankophor beschrieben. Wird die Svedberg-Gleichung mit einer die Ladungs- und Salzeffekte erfassenden Gleichung von Tiselius kombiniert, so läßt sich die änderung des Reibungskoeffizienten bei Variation der Ladung und Abschirmung quantitativ efassen. Es ergibt sich eine starke Abhängigkeit des Reibungskoeffizienten bzw. der Knäueldimensionen dieses Polyelektrolyten von der Ladungsdichte und der Fremdsalzkonzentration.

Additional Material: 8 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/apmc.1974.050370118

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Über Größe und Ladung des Polyelektrolytsystems Poly-N-Vinylpyrrolidon/Blankophor BAAus der Dissertation von Frank Preußer, Technische Universität München. I. Qualitative Beschreibung und Deutung der Sedimentationskoeffizienten in Abhängigkeit von der Ladungsdichte und der Fremdsalzkonzentration (1974)

Killmann, Von E. ; Preußer, F.

Weinheim : Wiley-Blackwell

Angewandte Makromolekulare Chemie 37 (1974), S. 187-197

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ISSN: 0003-3146

Keywords: Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Physics

Description / Table of Contents: The anion of the fluorescent dye Blancophor adsorbs onto the polymer polyvinylpyrrolidone in aqueous solution resulting in a polyelectrolyte whose charge and counter-ion concentration can be varied easily. The results of sedimentation-, diffusion- and density-measurements are referred. The effects basing on different origins are summarized and described. The dependence of the measured sedimentation coefficients from the charge-density and the concentration of low-molecular salts is qualitatively interpreted on the base of these influences.

Notes: Das Anion des Fluoreszenzfarbstoffes Blankophor adsorbiert in wäßriger Lösung an Polyvinylpyrrolidon und führt zu einem Polyelektrolyten, dessen Ladung und Gegenionenkonzentration sich bequem variieren läßt. Die Ergebnisse aus Sedimentations-, Diffusions-und Dichtemessungen werden dargestellt. Die auf verschiedene Ursachen zurückzuführenden Einflüsse auf den Sedimentationskoeffizienten werden zusammengestellt und beschrieben. Die Abhängigkeit der gemessenen Sedimentationskoeffizienten von der Ladungsdichte und der Fremdsalzkonzentration wird auf der Basis dieser Einflüsse qualitativ gedeutet.

Additional Material: 6 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/apmc.1974.050370117

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Technology-transfer analysis of the materials research program “Matfo”The project management organization “New Materials and Chemical Technologies (NMT)”, Forschungszentrum Jülich GmbH, gratefully acknowledges the support of the Bundesministerium für Bildung, Wissenschaft, Forschung and Technologie (BMBF). (1996)

Preusser, Steffen ; Bremer, Franz-Josef

Weinheim : Wiley-Blackwell

Advanced Materials 8 (1996), S. 713-717

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ISSN: 0935-9648

Keywords: Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics

Notes: The commercial success of the German Federal Ministry's materials research program “Mafto” (1985-1994) was recently evaluated to determine the effectiveness of the direct-funding model in supporting innovative industrial research. Based on the results of a questionnaire, where a 97% return rate was achieved, it was found that the results obtained in 27% of the projects have already been commercialized to some degree, for 26% of the projects a commercialization of the results is planned but has not yet taken place, and for 54% of the projects no commercialization is planned. This study included only projects where at least four years had elapsed since project completion. The reasons why scientifically and technically successfully projects were not commercialized were also surveyed.

Additional Material: 8 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/adma.19960080902

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Wärmeübergang und maximale Wärmestromdichte beim Behältersieden binärer und ternärer FlüssigkeitsgemischeVortrag auf dem Jahrestreffen der Verfahrens-Ingenieure, 27. bis 29. September 1978 in Aachen (1979)

Stephan, Karl ; Preußer, Peter

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 51 (1979), S. 37-37

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ISSN: 0009-286X

Keywords: Verdampfen ; Gemische ; Wärmeübergang ; maximale ; Wärmestromdichte ; Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Additional Material: 2 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/cite.330510112

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Ueber Amidoderivate von Chinon und Hydrochinon (1886)

Nietzki, R. ; Preusser, J.

Weinheim : Wiley-Blackwell

Berichte der deutschen chemischen Gesellschaft 19 (1886), S. 2247-2249

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ISSN: 0365-9496

Keywords: Chemistry ; Inorganic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/cber.188601902137

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Ueber die Constitution des Dinitrohydrochinons und über die Bildung der Nitranilsäure (1887)

Nietzki, R. ; Preusser, J.

Weinheim : Wiley-Blackwell

Berichte der deutschen chemischen Gesellschaft 20 (1887), S. 797-799

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ISSN: 0365-9496

Keywords: Chemistry ; Inorganic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/cber.188702001181

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Drilling Overdeepened Alpine Valleys (DOVE) - Operational Dataset of DOVE Phase 1 (2023)

DOVE - Phase 1 Scientific Team ; Anselmetti, Flavio S. ; Beraus, Sarah ; [et al.]

GFZ Data Services

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Publication Date: 2023-10-29

Description: Abstract

Description: The overarching goal of the Drilling Overdeepened Alpine Valleys (DOVE) project will be to date the age and extent of past glaciations. Formerly-glaciated areas are often characterized by deeply incised structures, often filled by Quaternary deposits. These buried troughs and valleys were formed by glacial overdeepening, likely caused by pressurized subglacial meltwater below warm-based glaciers. Results of this drilling campaign, supported by new dating technologies, will further provide critical data on 'how' and 'at which rate' glacial erosion affects such mountain ranges and their foreland. These processes are also of fundamental importance for evaluating the safety of radioactive waste disposal sites, which are planned in areas of former glaciations. Moreover, results of this project will fill gaps in the knowledge of paleoclimate and atmospheric circulation patterns during past glacial epochs and how these patterns affected ice build-up. The operational data sets include the drill core documentation from the mobile Drilling Information System (mDIS), full round core scans, MSCL data sets, a preliminary core description and the geophysical downhole logging data that were acquired during and subsequent to the drilling operations. All downhole logs and core depth were subject to depth correction to a common depth master (cf. operational report for detailed information). The data are described by two scientific reports, the Operational Report (https://doi.org/10.48440/ICDP.5068.001) and the Explanatory Remarks on the Operational Datasets (https://doi.org/10.48440/ICDP.5068.002).

Keywords: Glacial overdeepenings ; Pleistocene ; glaciation ; landscape evolution ; climate ; glacial cycles ; scientific drilling ; geophyics ; EARTH SCIENCE 〉 LAND SURFACE 〉 EROSION/SEDIMENTATION ; EARTH SCIENCE 〉 LAND SURFACE 〉 GEOMORPHOLOGY ; EARTH SCIENCE 〉 PALEOCLIMATE 〉 LAND RECORDS 〉 BOREHOLES ; EARTH SCIENCE 〉 PALEOCLIMATE 〉 LAND RECORDS 〉 GLACIATION ; EARTH SCIENCE 〉 PALEOCLIMATE 〉 LAND RECORDS 〉 PALEOVEGETATION ; EARTH SCIENCE 〉 PALEOCLIMATE 〉 LAND RECORDS 〉 POLLEN ; EARTH SCIENCE 〉 PALEOCLIMATE 〉 LAND RECORDS 〉 SEDIMENTS ; EARTH SCIENCE 〉 PALEOCLIMATE 〉 LAND RECORDS 〉 STRATIGRAPHIC SEQUENCE ; EARTH SCIENCE 〉 PALEOCLIMATE 〉 OCEAN/LAKE RECORDS 〉 BOREHOLES ; EARTH SCIENCE 〉 PALEOCLIMATE 〉 OCEAN/LAKE RECORDS 〉 POLLEN ; EARTH SCIENCE 〉 PALEOCLIMATE 〉 OCEAN/LAKE RECORDS 〉 SEDIMENTS ; EARTH SCIENCE 〉 PALEOCLIMATE 〉 OCEAN/LAKE RECORDS 〉 STRATIGRAPHIC SEQUENCE ; EARTH SCIENCE 〉 SOLID EARTH 〉 GEOMORPHIC LANDFORMS/PROCESSES 〉 GLACIAL LANDFORMS ; EARTH SCIENCE 〉 SOLID EARTH 〉 GEOMORPHIC LANDFORMS/PROCESSES 〉 GLACIAL PROCESSES

Type: Dataset , Dataset

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