Technology Reports of Kansai University (ISSN: 04532198) is a monthly peer-reviewed and open-access international Journal. It was first built in 1959 and officially in 1975 till now by kansai university, japan. The journal covers all sort of engineering topic, mathematics and physics. Technology Reports of Kansai University (TRKU) was closed access journal until 2017. After that TRKU became open access journal. TRKU is a scopus indexed journal and directly run by faculty of engineering, kansai university.
Technology Reports of Kansai University (ISSN: 04532198) is a peer-reviewed journal. The journal covers all sort of engineering topic as well as mathematics and physics. the journal's scopes are
in the following fields but not limited to:
The present study is focused on sequence stratigraphy of Turonian age northern Jordan representing by Wadi Es Sir Formation. The Wadi Es Sir Formation consists of well bedded massive limestone, dolomitic limestone and dolomite. Eight microfacies types have been recognized based on detailed petrographic analysis of the deposits. These are mudstone, gastropoda peloidal packstone, algal-lithoclast wackestone to packstone, peloidal foraminifera wackestone to packstone, bioclastic wackestone to packstone foraminifer wackestone, rudist framestone and pelletal grainstone. These facies reflect three different association environments include restricted marine, shallow open marine and shoal environments. Sequence stratigraphic analysis identified 4th order cycles which are generally asymmetrical and consist of Transgressive Systems Tract (TST) represented by shallow open marine and sometime shoal facies, followed by Highstand Systems Tract (HST) represented by restricted marine facies. They are bounded below by a Transgressive surface (Ts) and above by marine flooding (mfs). They represent successive episodes of relative sea level rise and stillstands. The nature of these cycles (composition and symmetry) reflects the combined effect of local tectonics and eustasy.
The paper presents the method of determining the sensitivity coefficient of flow stress with strain rate m (the strain rate sensitivity) during superplastic forming process of AA7075 aluminum alloy. The bulging free forming test was performed under constant gas pressures from 0.6 MPa and 0.8 MPa with temperatures of 5000C and 5300C. The values of the strain rate sensitivity varied from 0.3 to 0.6 with strain rate in the range of 5.10-4 to 1.5.10-3 (s-1), which can evaluate the superplastic forming ability of alloy in different technological modes. Tests results are allowed to choose the process parameters in the superplastic forming of AA7075 aluminum alloy sheet.