Search results

Filters

  • Journals
  • Authors
  • Keywords
  • Date
  • Type

Search results

Number of results: 3
items per page: 25 50 75
Sort by:
Download PDF Download RIS Download Bibtex

Abstract

A number of thorough studies characterizing national and regional innovation systems have been published over the last years but what is relatively new is the theme of local innovation systems. In the era of increasing emphasis on urban issues in the development policies of countries and organizations such as the European Union and the location of innovation in the centre of regional development debate, it is justifi ed to ask how the measures are directed to the provincial cities. The article concentrates on 5 voivodeship cities as the main centers of regions with the highest number of institutions that usually build local innovation systems, three of which are located in the less developed regions in Poland.

Go to article

Authors and Affiliations

Wojciech Dziemianowicz
Agnieszka Laskowska
Klaudia Peszat
Download PDF Download RIS Download Bibtex

Abstract

The article presents selected issues related to the development and testing of the diagnostics systems dedicated for superconducting electromagnets. The systems were constructed to assess the production quality of superconducting electromagnets of the SIS100 synchrotron, a new accelerator being built as part of the Facility of Antiproton and Ion Research (FAIR). One of the systems is used for automatic checking of electrical connection parameters and the continuity of electric circuits. The role of the second device is to assess the quality of winding insulation and to estimate circuit parameters of electromagnet coils using the capacitor discharge method. The work presents measurements and analysis of current and voltage waveforms acquired during discharges on a magnet coil simulator and on the SIS100 main dipole electromagnet.
Go to article

Authors and Affiliations

Michał Michna
1
ORCID: ORCID
Andrzej Wilk
1
ORCID: ORCID
Marek Wołoszyk
1
ORCID: ORCID
Michał Ziółko
1
ORCID: ORCID
Stanisław Galla
1
ORCID: ORCID
Piotr Szwangruber
2
ORCID: ORCID

  1. Gdansk University of Technology, Faculty of Electrical and Control Engineering, Gabriela Narutowicza str. 11/12, 80-233 Gdansk, Poland
  2. GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt 64291, Germany
Download PDF Download RIS Download Bibtex

Abstract

Steel-wood-steel connection is widely seen in many applications, such as timber structures. The stiffness of steel-wood-steel connection loaded parallel to grain for softwoods originated from Malaysia was investigated in this study. Numerical models have been developed in ABAQUS to study the stiffness connection. Softwoods of Damar Minyak and Podo have been selected in this analysis. The comprehensive study focused on the effect of bolt configurations on stiffness. Numerical analysis is carried out and the developed model has been validated with the previous study. Further investigations have been made by using the validated model. From this model, numerical analysis of the stiffness values have been made for various bolt configurations, including bolt diameter, end distance, bolt spacing, number of rows and bolts and edge distance. The result shows that the stiffness of bolted timber connections for softwood depends on the bolt diameter, number of rows and bolts, end distance and edge distance. Based on the result, stiffness increased as the diameter of the bolt, end distance, number of rows and bolts and edge distance increased. It is also discovered that the stiffness equation in Eurocode 5 (EC5) is inadequate as the equation only considered parameters which are wood density and bolt diameter. Other connection parameters such as geometry are not considered in the EC5 equation.
Go to article

Authors and Affiliations

Nur Liza Rahim
1 2
ORCID: ORCID
Francis Ting Shyue Sheng
1
ORCID: ORCID
Abdul Razak Abdul Karim
3
ORCID: ORCID
Marcin Nabialek
4
ORCID: ORCID
Mohd Mustafa Al Bakri Abdullah
5 6
ORCID: ORCID
Marek Sroka
7
ORCID: ORCID

  1. Universiti Malaysia Perlis, Faculty of Civil Engineering Technology, 02600 Arau Perlis, Malaysia
  2. Sustainable Environment Research Group (SERG), Centre of Excellence Geopolymer and Green Technology (CEGeoGTech), Universiti Malaysia Perlis (UniMAP), 01000 Kangar Perlis, Malaysia
  3. Faculty of Engineering, University of Malaysia, Sarawak, 94300 Kota Samarahan, Sarawak, Malaysia
  4. Department of Physics, Faculty of Production Engineering and Materials Technology, Czestochowa University of Technology, Czestochowa, Poland
  5. Universiti Malaysia Perlis, Faculty of Chemical Engineering Technology, 02600 Arau Perlis, Malaysia
  6. Centre of Excellence Geopolymer and Green Technology (CEGeoGTech), Universiti Malaysia Perlis (UniMAP), 01000 Kangar Perlis, Malaysia
  7. Division of Materials Processing Technology and Computer Techniques in Materials Science, Silesian University of Technology, 44-100 Gliwice, Poland

This page uses 'cookies'. Learn more