Ulrich Hirn

Univ.-Prof. Dipl.-Ing. Dr.techn.

1990 …2022
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Research Output 1999 2019

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Conference contribution
2018

Laboratory simulation of paper mechanical response during high-speed inkjet printing

Lahti, J. A., Kouko, J. & Hirn, U., 2018, Progress in Paper Physics Seminar 2018.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

2017

A memory effect in sheet-fed offset printing

Fuchs, W., Dauer, M., Hirn, U. & Bauer, W., 2017, Paper Conference and Trade Show, PaperCon 2017: Renew, Rethink, Redefine the Future. p. 1098 1106 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

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Determination of Repulpability of Talc-Filled Biopolymer Dispersion Coatings and Optimization of Repulped Reject for Improved Material Efficiency by Tailoring Coatings

Ovaska, S-S., Mielonen, K., Lyytikäinen, J., Hirn, U. & Backfolk, K., 2017, Tappi PaperCon 2017 Proceedings. p. 36-48

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

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Fiber-Fiber Bond Formation and Failure: Mechanisms and Analytical Techniques

Hirn, U. & Schennach, R., 2017, Advances in pulp and paper research, Oxford 2017: 16th Fundamental Research Symposium, Oxford, September 2017. The Pulp and Paper Fundamental Research Society, Vol. 2. p. 839 - 863

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

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Investigating the transversal viscoelastic properties of paper fibers by atomic force microscopy

Czibula, C. M., Ganser, C., Tscharnuter, D., Schöberl, T., Teichert, C. & Hirn, U., 2017, The issues in mechanics of pulp and paper materials. Arkhangelsk, p. 74-79

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

LINKING PAPER STRUCTURE TO LOCAL DISTRIBUTION OF DEFORMATION AND DAMAGE

Lahti, J. A., Dauer, M., Keller, D. S. & Hirn, U., Sep 2017, Advances in pulp and paper research, Oxford 2017: 16th Fundamental Research Symposium, Oxford. p. 669-682 13 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

damage
temperature
energy dissipation
distribution
method
2016

Estimating the area in molecular contact using Förster resonance energy transfer microscopy (FRET)

Urstöger, G. J., Schennach, R. & Hirn, U., 2016, Progress in Paper Physics Seminar 2016. p. 241-244

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Influence of different realtive humidity on the strength of individual hardwood and softwood fibres and joints

Jajcinovic, M., Fischer, W. J., Hirn, U. & Bauer, W., 2016, Progress in Paper Physics Seminar 2016. p. 174 179 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

The Volume under Load model for Evaluating Wet Pressing Performance

Leuk, P., Dauer, M. & Hirn, U., 2016, Progress in Paper Physics Seminar 2016 Conference Proceedings . p. 96-97 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

2015

A Memory Effect in Sheet-Fed-Offset Printing

Fuchs, W., Dauer, M., Hirn, U. & Bauer, W., 2015, IARIGAI International Research Conference. ., p. 13-23

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Determining pulp heat of sorption from isotherm models and calorimeter measurements

Leuk, P., Schneeberger, M. & Hirn, U., 2015, Tokyo Paper 2015, Internationl Paper Physics and Paper Chemistry Conference. ., p. 100-100

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Effect of local paper properties on xerographic print mottle

Fuchs, W., Dauer, M., Hirn, U. & Bauer, W., 2015, Tokyo Paper 2015, Internationl Paper Physics and Paper Chemistry Conference. ., p. 97-97

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Fast Evaluation of Spatial Coating Layer Formation using UV Scanner Imaging

Fuchs, W., Hirn, U., Bauer, W. & Keller, D. S., 2015, PAPERCON 2015 Conference Proceedings. ., p. na-na

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Mechanical properties of hardwood fibres and fibre to fibre bonds

Jajcinovic, M., Fischer, W. J., Hirn, U. & Bauer, W., 2015, 18th ISWFPC International Symposium on Wood, Fiber and Pulping Chemistry. ., p. 11-14

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Mechanical properties of indiviual cellulose fibres and fibre to fibre bonds

Fischer, W. J., Jajcinovic, M., Hirn, U. & Bauer, W., 2015, BOOK OF ABSTRACTS "Polysaccharides and polysaccharide-based advanced materials: from science to industry". ., p. 59-59

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

2014

A comparison of five optical surface topography measurement methods

Mettänen, M. & Hirn, U., 2014, PTS Paper & Imaging Symposium CP 1410. ., p. 1-2

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

A qauntitative analysis of different fiber-fiber bonding mechanisms

Hirn, U. & Schennach, R., 2014, Progress in Paper Physics Seminar. ., p. NA-NA

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Determining the Coating Layer Distribution on Paper using UV Scanner Imaging

Fuchs, W., Hirn, U., Bauer, W. & Keller, D. S., 2014, Progress in Paper Physics Seminar. ., p. NA-NA

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Measured and calculated bending stiffness of individual fibers

Fischer, W. J., Lorbach, C., Jajcinovic, M., Hirn, U. & Bauer, W., 2014, Progress in Paper Physics. ., p. NA-NA

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

New Insights in the Bonding Mechanisms between Paper Fibers

Schennach, R. & Hirn, U., 2014, New Congress Materials Science and Engineering. ., p. na-na

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Surface Science differently: What holds paper fibers together

Teichert, C., Schmied, F., Ganser, C., Kappel, L., Fischer, W. J., Hirn, U., Bauer, W. & Schennach, R., 2014, Symposium on Surface Science. ., p. 179-180

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

The contact area of press felts under load and its effect on dewatering efficiency

Leuk, P., Dauer, M., Schneeberger, M. & Hirn, U., 2014, Science and Innovation - Book of Abstracts. Frankfurt: ., p. 22-23

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

The Use of an Ultra Violet Scanner for Characterization of Surface Treatments in Coated and Uncoated Papers

Fuchs, W., Keller, D. S., Hirn, U. & Bauer, W., 2014, 10. Minisymposium Verfahrenstechnik. ., p. 37-42

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

2013

Exploring what holds paper together: An AFM based nanomechanical investigation of single cellulose fibers and fiber-fiber bonds

Teichert, C., Ganser, C., Schmied, F., Fischer, W. J., Hirn, U. & Schennach, R., 2013, International Vacuum Congress. ., p. NST - 3 --NST - 3 -

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Interfibre joint strength under peeling, shearing and tearing types of loading

Magnusson, M. S., Fischer, W. J., Östlund, S. & Hirn, U., 2013, Advances in Pulp and Paper Research. ., Vol. Volume 1. p. 103-124 (Transaction of the 15th Fundamental Research Symposium).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Lokale Variationen von Papiereigenschaften und ihr Einfluss auf Druckbildstörungen

Hirn, U. & Feirer, V., 2013, PTS Seminar SB 1352. PTS, p. 45-58

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Simulacije v parinistvu - nacin za znizanje stroskov

Leuk, P., Schneeberger, M., Hirn, U. & Bauer, W., 2013, Book of Abstracts. Ljubljana: ., p. 50-50

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

The area in molecular contact in fiber-fiber bonds

Hirn, U., Schennach, R., Ganser, C., Magnusson, M., Teichert, C. & Östlund, S., 2013, Advances in Pulp and Paper Research. The Pulp and Paper Research Society, p. 201-226

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

The Heat of Sorption in Paper Drying

Leuk, P., Schneeberger, M., Dauer, M., Hirn, U. & Bauer, W., 2013, Field of Expertise: Advanced Material Science. ., p. 1-1

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

The heat of sorption in paper drying - an investigation of measurement methods and influence of pulp parameters

Schneeberger, M., Leuk, P., Hirn, U. & Bauer, W., 2013, Advances in Pulp and Paper Research. The Pulp and Paper Research Society, p. 469-492

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2012

A New Burnout Test for Wood Containing Papers

Trimmel, M., Hirn, U. & Bauer, W., 2012, Book of Abstracts. Stockholm: ., p. 121-124

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Open Access
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Moznosti Prihranka Energije V Susilni Skupini

Schneeberger, M., Leuk, P., Hirn, U. & Bauer, W., 2012, Zbornik Povzetkov/Book of Abstract. ., p. 26-30

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Shear testing of individual fibre-fibre bonds

Fischer, W. J., Hirn, U., Bauer, W. & Schennach, R., 2012, European Congress on Computational Methods in Applied Sciences and Engineering. ., p. 2781-2781

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Single fiber-fiber bond strength measurements using atomic force microscopy

Ganser, C., Schmied, F., Fischer, W. J., Hirn, U., Schennach, R. & Teichert, C., 2012, European Congress on Computational Methods in Applied Sciences and Engineering. ., p. 2780-2780

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Towards Quantification of Bonding Energy and bonding Mechanism Between Pulp Fibers

Hirn, U., Schennach, R., Schmied, F. & Teichert, C., 2012, International Cellulose Conference. Tokyo: ., p. O 34-p.65

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Utilizing atomic force microscopy to characterize various single fiber-fiber bonds

Schmied, F., Ganser, C., Fischer, W. J., Hirn, U., Bauer, W., Schennach, R. & Teichert, C., 2012, International Paper and Coating Chemistry Symposium. ., p. 141-143

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2011

A Model Approach to Understand the Fiber – Fiber Bond in Paper

Schennach, R., Hirn, U., Horvath, E., Schmied, F. & Teichert, C., 2011, Progress in Paper Physics Seminar 2011 Conference Proceedings. Graz: Verlag der Technischen Universität Graz, p. 211-213

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

A Statistical Approach to the Modelling of Ink transmission on Flexo Printed Sack Paper

Feirer, V., Hirn, U., Friedl, H. & Bauer, W., 2011, Advances in Printing and Media Technology Vol. XXXVIII. 1 ed. Darmstadt, Germany: ., p. 93-102

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Insights into Single Fiber-Fiber Bonds Using Atomic Force Microscopy

Schmied, F., Ganser, C., Fischer, W. J., Hirn, U., Bauer, W., Schennach, R. & Teichert, C., 2011, Progress in Paper Physics Seminar 2011 Conference Proceedings. Graz: Verlag der Technischen Universität Graz, p. 197-198

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Konzept eines Messgerätes zur Bestimmung der Scherfestigkeit einzelner Faser-Faser Bindungen

Fischer, W. J., Hirn, U., Bauer, W. & Schennach, R., 2011, 7. Minisymposium Verfahrenstechnik. Verlag der Technischen Universität Graz, p. 99-102

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Mechanical properties of fiber–fiber bonds in paper studied by atomic force microscopy

Schmied, F., Fischer, W. J., Hirn, U., Schennach, R. & Teichert, C., 2011, Verhandlungen. ., p. BP3.3-BP3.3

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Modeling Local Print Density Variations in Rotogravure Print

Hirn, U., Lechthaler, M. & Bauer, W., 2011, Advances in Printing and Media Technology Vol. XXXVIII. 1 ed. Darmstadt, Germany: ., p. 27-35

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Static and dynamic load of single fiber-fiber bonds using atomic force microscopy

Schmied, F., Fischer, W. J., Hirn, U., Bauer, W., Schennach, R. & Teichert, C., 2011, Zukunft.Forum Papier. ., p. na-na

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Two Distribution Families for the Compensation of Over- and Underdispersed Frequencies Compared with the Binomial Distribution

Feirer, V., Hirn, U., Friedl, H. & Bauer, W., 2011, Abstracts. ., p. 11-11

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Untersuchung der Ursachen für Mottling im Offsetdruck

Wind, E., Hirn, U. & Bauer, W., 2011, 7. Minisymposium Verfahrenstechnik - Book of Abstracts. Graz: Verlag der Technischen Universität Graz, p. 60-64

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Open Access
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2010

3D-Analytik der Interaktion von Rohpapier und Strich

Kritzinger, J., Wind, E., Hirn, U. & Bauer, W., 2010, PTS-Seminar AM1065 Moderne analytische Methoden in der Papiertechnik. ., p. 10.1-10.2

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Ink Transmission in Flexo Printed Sack Paper - a Statistical Modelling Approach

Feirer, V., Hirn, U., Friedl, H. & Bauer, W., 2010, Proceedings PTS Symposium CP 1010 Papier und Bedruckbarkeit 2010. ., p. 17.1-17.2

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Local Variations in Paper Structure and their Influence on Rotogravure Printability of SC Paper

Hirn, U. & Bauer, W., 2010, Proceedings PTS Symposium Papier und Bedruckbarkeit 2010. ., p. 16.1-16.2

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Modelling local print density variations in industrial gravure prints

Hirn, U., Lechthaler, M. & Bauer, W., 2010, Progress in Paper Physics Seminar 2010. ., p. -

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Neue und traditionelle Verfahren zur Bewertung der Bedruckbarkeit im Offset-Druck

Wind, E., Hirn, U. & Bauer, W., 2010, Österreichische Papierfachtagung - Kurzfassung der Vorträge. ., p. 21-21

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch