- Awards & Fellowships
- Research Experience
- Other Professional Experience
- Teaching Experience
In the mean time, she is starting to do research on quantitative inspection of tropical fruits. The research combines mechanical properties inspection, nondestructive inspection, as well as chemical inspection.
- Doctor of Philosophy in Mechanical Engineering, Osaka University, 2013
- Master of Engineering in Mechanical Engineering, Osaka University, 2010
- Bachelor of Engineering in Engineering Physics, Institut Teknologi Bandung, 2006
- 2018 : TWAS-COMSTECH Joint Research Grants Programme, are awarded to promising high-level research projects, specifically to purchase the research facilities
- 2010 : Symposium on Ultrasonic Electronics Young Scientist Award, for the presentation "Propagation Behavior of SH Guided Waves in a Tapered Plate" given in the 31th Symposium on Ultrasonic Electronics, Tokyo.
- 2010: Monbukagakusho (MEXT) Scholarship for Doctoral course
- 2008 : Monbukagakusho (MEXT) Scholarship for Master course
For more than 7 years, I have been involving in the application of ultrasonic wave for nondestructive testing and evaluation. The most common way to generate ultrasonic wave in the inspected material is by using piezoelectric transducer. In this way, the wave is generated inside the transducer and a couplant material (typically grease) is required to establish intimate contact with the specimen in order to enable the transmission of the wave into the specimen. This need for a couplant creates some problems and limits the inspection flexibility.
I have been developing an alternative transducer for ultrasonic wave generation, namely the electromagnetic acoustic transducer (EMAT). With this transducer, the wave is generated directly in the inspected specimen through an electromagnetic-acoustic transduction mechanism via an air gap. It does not require a couplant or any mechanical bonding with the specimen, providing the flexibility and higher speed of inspection. The presence of defect in a pipe will alter the propagating guided waves. Commonly, the inspection is based on the amplitude difference of the disturbed propagating waves. Unfortunately, this amplitude can be easily affected by the background noise and contacting condition between the transducer and the specimen. I have been proposing a new method for inspection based on a velocity change which is based on a traveling time measurement. This method should be more reliable than the amplitude based inspection.
In the mean time, I am starting to do research on quantitative inspection of tropical fruits. The research combines mechanical properties inspection, nondestructive inspection, as well as chemical inspection.
- Researcher, Institut Teknologi Bandung, 2015 - 2017
- Researcher, Osaka University, 2013 - 2015
- Instrument Engineer, PT. Ipedex Indonesia, 2007
- Electronic Analyst, PT. Honoris Industry, 2000 - 2001
- Stevanus Wisnu Wijaya, Nurmalia, Investigating User Experience with Digital Ethnography Approach: Principles and Guidelines, 2018 10th International Conference on Information Technology and Electrical Engineering (ICITEE) on IEEE Xplore, pp 540 - 544, 2018.
- Nurmalia, N. Nakamura, H. Ogi and M. Hirao, EMAT pipe inspection technique using higher mode torsional guided wave T(0,2), NDT&E International, Vol. 87, pp. 78 – 84, January, 2017. 2.
- Nurmalia, N. Nakamura, H. Ogi and M. Hirao, Mode conversion and total reflection of torsional waves for pipe inspection, Japanese Journal of Applied Physics, Vol. 52, 07HC14, July, 2013.
- Nurmalia, N. Nakamura, H. Ogi and M. Hirao, Mode conversion of torsional waves generated by electromagnetic acoustic transducer, AIP Conf. Proc., Vol. 1511, Review of Progress in Quantitative Nondestructive Evaluation QNDE2012, pp. 909 – 915, 2013.
- Nurmalia, N. Nakamura, H. Ogi, M. Hirao and K. Nakahata, Mode conversion behavior of SH guided wave in a tapered plate, NDT&E International, Vol. 45, pp. 156 – 161, January, 2012.
- Nurmalia, N. Nakamura, H. Ogi and M. Hirao, Detection of shear horizontal guided waves propagating in aluminum plate with thinning region, Japanese Journal of Applied Physics, Vol. 50, 07HC17, July, 2011.
- General Physics
- Materials Science
- Business Mathematics
- Ultrasonic Technology
- Digital Logic System