http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Investigating the fatigue failure characteristics of A283 Grade C steel using magnetic flux dete
A. Arifin,W.Z.W. Jusoh,S. ABDULLAH,N. Jamaluddin,A. K. ARIFFIN 국제구조공학회 2015 Steel and Composite Structures, An International J Vol.19 No.3
The Metal Magnetic Memory (MMM) method is a non-destructive testing method based on an analysis of the self-magnetic leakage field distribution on the surface of a component. It is used for determining the stress concentration zones or any irregularities on the surface or inside the components fabricated from ferrous-based materials. Thus, this paper presents the MMM signal behaviour due to the application of fatigue loading. A series of MMM data measurements were performed to obtain the magnetic leakage signal characteristics at the elastic, pre-crack and crack propagation regions that might be caused by residual stresses when cyclic loadings were applied onto the A283 Grade C steel specimens. It was found that the MMM method was able to detect the defects that occurred in the specimens. In addition, a justification of the Self Magnetic Flux Leakage patterns is discussed for demonstrating the effectiveness of this method in assessing the A283 Grade C steel under cyclic loadings.
Fatigue crack effect on magnetic flux leakage for A283 grade C steel
M.I.M. Ahmad,A. Arifin,S. ABDULLAH,W.Z.W. Jusoh,S.S.K. Singh 국제구조공학회 2015 Steel and Composite Structures, An International J Vol.19 No.6
This paper presents the characterization of fatigue crack in the A283 Grade C steel using the MMM method by identifying the effects of magnetic flux leakage towards the crack growth rate, da/dN, and crack length.The previous and current research on the relation between MMM parameters and fatigue crack effect is still unclear and requires specific analysis to validate that. This method is considered to be a passive magnetic method among other Non-Destructive Testing (NDT) methods. The tension-tension fatigue test was conducted with a testing frequency of 10 Hz with 4 kN loaded, meanwhile the MMM response signals were captured using a MMM instrument. A correlation between the crack growth rate and magnetic flux leakage produces a sigmoid shape curve with a constant values which present the gradient, m value is in the ranges of 1.4357 to 4.0506, and the y-intercept, log C in the ranges of 4×10<SUP>-7</SUP> to 0.0303. Moreover, a linear relation was obtained between the crack length and magnetic flux leakage which present the R-Squared values is at 0.830 to 0.978. Therefore, MMM method has their own capability to investigate and characterize the fatigue crack effects as a main source of fracture mechanism for ferrous-based materials.
Retno A. P. Arifin,Seokchan Jeong,Youngseok Ock 한국인터넷전자상거래학회 2014 인터넷전자상거래연구 Vol.14 No.5
Accounting information has an important role to achieve success of the business, including small businesses. Accounting information could be the basis for economic decision making in the management of small and medium enterprises. But the lack of awareness and knowledge in the financial accounting is weakness to Indonesian SMMEs(Small Medium Micro Enterprises). A financial application that is convenient to make financial report might be a solution of this problem. In this study, a mobile cloud accounting application is suggested as a financial application to help Indonesian SMMEs in writing financial report. This application called AppCounting refers to Financial Accounting Standards for Entities without Public Accountability(SAK ETAP) of Indonesia.
Kim, Jaeyun,Arifin, Dian R.,Muja, Naser,Kim, Taeho,Gilad, Assaf A.,Kim, Heechul,Arepally, Aravind,Hyeon, Taeghwan,Bulte, Jeff W. M. WILEY‐VCH Verlag 2011 Angewandte Chemie Vol.123 No.10
<P><B><I>Doppeltes Abschirmen</I></B> von Inselzellen und multimodale Bildgebung mithilfe eines Kapsel‐in‐Kapsel‐Systems werden in der Zuschrift von T. Hyeon et al. auf S. 2365 ff. beschrieben. Die semipermeable äußere Alginatmembran unterbindet das Eindringen von Immunzellen und Antikörpern, lässt aber die ungehinderte Diffusion von Nährstoffen, Glucose, Sauerstoff und von den Inselzellen produziertem Insulin zu. Die innere Kapsel, die Eisenoxid‐ und Gold‐Bildgebungsagentien enthält, schützt die Zellen vor dem direkten Kontakt mit den Nanopartikeln.</P>
THE BIMA PROJECT: O-C DIAGRAMS OF ECLIPSING BINARY SYSTEMS
HAANS, G.K.,RAMADHAN, D.G.,AKHYAR, S.,AZALIAH, R.,SUHERLI, J.,IRAWATI, P.,SAROTSAKULCHAI, T.,ARIFIN, Z.M.,RICHICHI, A.,MALASAN, H.L.,SOONTHORNTHUM, B. The Korean Astronomical Society 2015 天文學論叢 Vol.30 No.2
The Eclipsing Binaries Minima (BIMA) Monitoring Project is a CCD-based photometric observational program initiated by Bosscha Observatory - Lembang, Indonesia in June 2012. Since December 2012 the National Astronomical Research Institute of Thailand (NARIT) has joined the BIMA Project as the main partner. This project aims to build an open-database of eclipsing binary minima and to establish the orbital period of each system and its variations. The project is conducted on the basis of multisite monitoring observations of eclipsing binaries with magnitudes less than 19 mag. Differential photometry methods have been applied throughout the observations. Data reduction was performed using IRAF. The observations were carried out in BVRI bands using three different small telescopes situated in Indonesia, Thailand, and Chile. Computer programs have been developed for calculating the time of minima. To date, more than 140 eclipsing binaries have been observed. From them 71 minima have been determined. We present and discuss the O-C diagrams for some eclipsing binary systems.