S. Varjus: search on Z-Library

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1

A model for stresses, crack generation and fracture toughness calculation in scratched TiN-coated steel surfaces

Kenneth Holmberg, Anssi Laukkanen, Helena Ronkainen, Kim Wallin, Simo Varjus

Journal:

Year:

2003

Language:

english

File:

PDF, 808 KB

english, 2003

2

Low friction ta-C films with hydrogen reservoirs

Koskinen, J., Ronkainen, H., Varjus, S., Muukkonen, T., Holmberg, K., Sajavaara, T.

Journal:

Diamond and Related Materials

Year:

2001

Language:

english

File:

PDF, 301 KB

english, 2001

3

Microbial growth control in water hydraulic systems by conventional filtration

SH Varjus, H Riipinen, SM Soini, KT Koskinen, MJ Vilenius, JA Puhakka

Journal:

Filtration + Separation

Year:

2004

Language:

english

File:

PDF, 140 KB

english, 2004

4

Differentiating the tribological performance of hydrogenated and hydrogen-free DLC coatings

H Ronkainen, S Varjus, J Koskinen, K Holmberg

Journal:

Year:

2001

Language:

english

File:

PDF, 299 KB

english, 2001

5

Characterization of wear surfaces in dry sliding of steel and alumina on hydrogenated and hydrogen-free carbon films

Ronkainen, H., Koskinen, J., Likonen, J., Varjus, S., Vihersalo, J.

Journal:

Diamond and Related Materials

Year:

1994

Language:

english

File:

PDF, 948 KB

english, 1994

6

Tribological contact analysis of a rigid ball sliding on a hard coated surface: Part I: Modelling stresses and strains

Kenneth Holmberg, Anssi Laukkanen, Helena Ronkainen, Kim Wallin, Simo Varjus, Jari Koskinen

Journal:

Surface and Coatings Technology

Year:

2006

Language:

english

File:

PDF, 1.14 MB

english, 2006

7

Tribological contact analysis of a rigid ball sliding on a hard coated surface: Part II: Material deformations, influence of coating thickness and Young's modulus

Kenneth Holmberg, Anssi Laukkanen, Helena Ronkainen, Kim Wallin, Simo Varjus, Jari Koskinen

Journal:

Surface and Coatings Technology

Year:

2006

Language:

english

File:

PDF, 1.04 MB

english, 2006

8

Microstructural changes in DLC films due to tribological contact

J Koskinen, D Schneider, H Ronkainen, T Muukkonen, S Varjus, P Burck, K Holmberg, H.-J Scheibe

Journal:

Surface and Coatings Technology

Year:

1998

Language:

english

File:

PDF, 233 KB

english, 1998

9

Autonomy among intensive care nurses in Finland

Sirkka-Liisa Varjus, Tarja Suominen, Helena Leino-Kilpi

Journal:

Intensive and Critical Care Nursing

Year:

2003

Language:

english

File:

PDF, 113 KB

english, 2003

10

Fibre Optic Sensors for Long-Term Monitoring of Oil Film Pressure in Diesel Engine Main Bearing

Kapulainen, Markku, Ronkainen, Helena, Hokkanen, Ari, Stuns, Ingmar, Varjus, Simo, Nyyssönen, Sami, Turunen, Raimo, Halme, Jari

Journal:

Tribology Letters

Year:

2014

Language:

english

File:

PDF, 1.61 MB

english, 2014

11

Microlubrication effect by laser-textured steel surfaces

P. Andersson, J. Koskinen, S. Varjus, Y. Gerbig, H. Haefke, S. Georgiou, B. Zhmud, W. Buss

Journal:

Year:

2007

Language:

english

File:

PDF, 2.07 MB

english, 2007

12

Microbial growth control in water hydraulic systems by conventional filtration

SH Varjus, H Ripinen, SM Soini, KT Koshinen, MJ Vilenius, JA Puhakka

Journal:

Filtration + Separation

Year:

2004

File:

PDF, 31 KB

2004

13

Microstructure and tribological properties of pulsed electric current sintered alumina–zirconia nanocomposites with different solid lubricants

Erkin Cura, M., Kim, Seung-Ho, Muukkonen, Tatu, Varjus, Simo, Vaajoki, Antti, Söderberg, Outi, Suhonen, Tomi, Kanerva, Ulla, Wohn Lee, Soo, Hannula, Simo-Pekka

Journal:

Ceramics International

Year:

2013

Language:

english

File:

PDF, 2.44 MB

english, 2013

14

Lubrication improvement and friction reduction of DLC-coated sliding surfaces by in-process structuring and post polishing

Andersson, P., Koskinen, J., Varjus, S., Kolehmainen, J., Tervakangas, S., Buss, W.

Journal:

Year:

2008

Language:

english

File:

PDF, 501 KB

english, 2008

15

SAE Technical Paper Series [SAE International International Off-Highway & Powerplant Congress - (MAR. 19, 2002)] SAE Technical Paper Series - Effects of Microbial Growth on Filtration in Water Hydraulic System

Riipinen, Hannu, Varjus, Sanna, Soini, Sari, Puhakka, Jaakko A., Koskinen, Kari T., Vilenius, Matti

Year:

2002

File:

PDF, 338 KB

2002

16

Friction behavior of alumina/molybdenum composites and formation of MoO3−x phase at 400°C

Cura, M.E., Liu, X.W., Kanerva, U., Varjus, S., Kivioja, A., Söderberg, O., Hannula, S-P.

Journal:

Tribology International

Year:

2015

Language:

english

File:

PDF, 3.89 MB

english, 2015

17

Experimental design and modelling in the investigation of process parameter effects on the tribological and mechanical properties of r.f.-plasma-deposited a-C:H films

H Ronkainen, J Koskinen, S Varjus, K Holmberg

Journal:

Surface and Coatings Technology

Year:

1999

Language:

english

File:

PDF, 955 KB

english, 1999

18

Tribological performance of different DLC coatings in water-lubricated conditions

H Ronkainen, S Varjus, K Holmberg

Journal:

Year:

2001

Language:

english

File:

PDF, 314 KB

english, 2001

19

Effect of tribofilm formation on the tribological performance of hydrogenated carbon coatings

H. Ronkainen, J. Likonen, J. Koskinen, S. Varjus

Journal:

Surface and Coatings Technology

Year:

1996

Language:

english

File:

PDF, 945 KB

english, 1996

20

Biomimetic approach to water lubrication with biomolecular additives

Ahlroos, T., Hakala, T. J., Helle, A., Linder, M. B., Holmberg, K., Mahlberg, R., Laaksonen, P., Varjus, S.

Journal:

Proceedings of the Institution of Mechanical Engineers Part J: Journal of Engineering Tribology

Year:

2011

Language:

english

File:

PDF, 417 KB

english, 2011

21

[ASME ASME 2008 Conference on Smart Materials, Adaptive Structures and Intelligent Systems - Ellicott City, Maryland, USA (October 28–30, 2008)] Smart Materials, Adaptive Structures and Intelligent Systems, Volume 1 - Embedded Optical Sensor for Oil Film Pressure Measurements in Journal Bearings

Ronkainen, Helena, Valkonen, Antti, Kapulainen, Markku, Simo, Varjus, Hokkanen, Ari, Stuns, Ingmar, Virtanen, Juha, Martikainen, Juhani

Year:

2008

Language:

english

File:

PDF, 568 KB

english, 2008

22

Friction and wear properties in dry, water- and oil-lubricated DLC against alumina and DLC against steel contacts

H Ronkainen, S Varjus, K Holmberg

Journal:

Year:

1998

Language:

english

File:

PDF, 2.44 MB

english, 1998

23

Professional autonomy of nurses in hospital settings – a review of the literature

Sirkka-Liisa Varjus, Helena Leino-Kilpi, Tarja Suominen

Journal:

Scandinavian Journal of Caring Sciences

Year:

2011

Language:

english

File:

PDF, 82 KB

english, 2011

24

Friction reduction by texturing of DLC coatings sliding against steel under oil lubrication

Jari Koskinen, Unto Tapper, Peter Andersson, Simo Varjus, Jukka Kolehmainen, Sanna Tervakangas, Wolfgang Buss

Journal:

Surface and Coatings Technology

Year:

2010

Language:

english

File:

PDF, 321 KB

english, 2010

25

Twin disc micropitting tests

T. Ahlroos, H. Ronkainen, A. Helle, R. Parikka, J. Virta, S. Varjus

Journal:

Tribology International

Year:

2009

Language:

english

File:

PDF, 532 KB

english, 2009

26

Improvement of a-C:H film adhesion by intermediate layers and sputter cleaning procedures on stainless steel, alumina and cemented carbide

H. Ronkainen, J. Vihersalo, S. Varjus, R. Zilliacus, U. Ehrnstén, P. Nenonen

Journal:

Surface and Coatings Technology

Year:

1997

Language:

english

File:

PDF, 818 KB

english, 1997

27

SAE Technical Paper Series [SAE International International Off-Highway & Powerplant Congress - (MAR. 19, 2002)] SAE Technical Paper Series - Effects of Microbial Growth on Filtration in Water Hydraulic System

Riipinen, Hannu, Varjus, Sanna, Soini, Sari, Puhakka, Jaakko A., Koskinen, Kari T., Vilenius, Matti

Year:

2002

Language:

english

File:

PDF, 338 KB

english, 2002

28

Tribological contact analysis of a rigid ball sliding on a hard coated surface, Part III: Fracture toughness calculation and influence of residual stresses

Anssi Laukkanen, Kenneth Holmberg, Jari Koskinen, Helena Ronkainen, Kim Wallin, Simo Varjus

Journal:

Surface and Coatings Technology

Year:

2006

Language:

english

File:

PDF, 1.12 MB

english, 2006

29

Load-carrying capacity evaluation of coating/substrate systems for hydrogen-free and hydrogenated diamond-like carbon films

H. Ronkainen, J. Koskinen, S. Varjus, K. Holmberg

Journal:

Tribology Letters

Year:

1999

Language:

english

File:

PDF, 859 KB

english, 1999

30

The influence of carbon based coatings and surface finish on the tribological performance in High-load contacts

Ronkainen, H., Elomaa, O., Varjus, S., Kilpi, L., Jaatinen, T., Koskinen, J.

Journal:

Tribology International

Year:

2015

Language:

english

File:

PDF, 3.91 MB

english, 2015

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