dr. suhaimi bin illias year 2017 curriculum vitae · 1980-1985 sekolah rendah kebangsaan iskandar,...

CURRICULUM VITAE DR. SUHAIMI BIN ILLIAS YEAR 2017

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CURRICULUM VITAE

DR. SUHAIMI BIN ILLIAS

Present Position University Lecturer (Senior Lecturer)

School of Manufacturing Engineering

Address Universiti Malaysia Perlis (UniMAP)

Kampus Alam Pauh Putra, 02600 Arau, Perlis, Malaysia

Phone +049885035

Mobile +60125806503

Email [email protected], [email protected]

Date of Birth 11 August 1978

Place of Birth Alor Setar, Kedah, Malaysia

Marial Status Married to Natasha Binti Nordin, and blessed with one children

Suhaimi bin Illias was born on August 11, 1978 in Alor Setar, Kedah. He received his Bachelor Degree

in Mechanical Engineering from Ehime University, Japan in 2003. Then in 2007, he received his

Master Degree in Mechanical Engineering from Gunma University, Japan and the Doctor of Philosophy

(PhD) in Mechanical Engineering from Saga University, Japan in 2015. His current research interests

include boiling heat transfer, droplet impact on hot surface, phase change, thermo-fluid-physics and

advanced cooling performance. Dr. Suhaimi received full scholarship from the Malaysian Government

during all his studies in Japan. He has been working with the Mechanical Engineering Division, School

of Manufacturing Engineering, Universiti Malaysia Perlis (UniMAP) since 2003. He is currently

working as a Senior Lecturer. He is a member of the Heat Transfer Society of Japan (HTSJ), American

Society of Thermal and Fluid Science (ASTFE) and the member of Board of Engineers Malaysia

(BEM), Malaysia.

He has published about 42 publications, including proceedings and international journal. He has

published 2 proceeding papers in the International Heat Transfer Conference, IHTC-13 (Sydney,

Australia) and IHTC-15 (Kyoto, Japan). This International Conference is also known as Heat Transfer

Olympic among heat transfer researchers around the world. This conference is very prestigious and is

highly respected by the heat transfer society around the world. Currently, he also has published one

journal article in SCIENTIFIC REPORTS entitled “Micro-bubble emission boiling with the cavitation

bubble blow pit” published by NPG (Nature Publishing Group).

mailto:[email protected]


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PERSONAL INFORMATION

1. NAME : DR. SUHAIMI BIN ILLIAS

2. UNIVERSITY : UNIVERSITY MALAYSIA PERLIS, MALAYSIA

3. STAF NO. : 0100610

CURRENT POSITION

1. Senior Lecturer : Gred DS52

ACADEMIC QUALIFICATIONS

March 2015 Saga University, Japan Doctor of Philosophy (PhD) in Mechanical Engineering

March 2007 Gunma University, Japan Master of Engineering in Mechanical Engineering

March 2003 Ehime University, Japan Bachelor of Engineering in Mechanical Engineering

DISSERTATION

March 2015 Doctor of Philosophy (Ph. D) dissertation

Boiling transition phenomena beneath a sessile droplet on high temperature

surface

March 2007 Master of Engineering dissertation

The effect of heating surface material on evaporation behavior of impinging

droplet

March 2003 Bachelor of Engineering dissertation

Experimental studies of the beginning point of boiling

CGPA

Doctor of Philosophy 4.0

Master of Engineering 4.0

WORKING EXPERIENCE

1. March 2015 – till now

Senior Lecturer, Universiti Malaysia Perlis, Malaysia

School of Manufacturing Engineering (Mechanical Eng. Division)

Universiti Malaysia Perlis, MALAYSIA.

2. April 2007 – March 2015

Lecturer, Universiti Malaysia Perlis, Malaysia

School of Manufacturing Engineering (Mechanical Eng. Division)

Universiti Malaysia Perlis, MALAYSIA.

3. 15 May 2009 – 27 Februari 2011

Program Chairman

School of Manufacturing Engineering

Universiti Malaysia Perlis MALAYSIA

4. November 2003

Teaching Engineer, KUKUM November 2003

Kolej Universiti Kejuruteraan Utara Malaysia (KUKUM)


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ADMINSTRATION POSITION

1. Program Chairman

Degree Manufacturing Engineering

School Of Manufacturing Engineering

Unversiti Malaysia Perlis, Malaysia

(May 2009 – Feb 2011)

2. Committee Members (Exco)

School Of Manufacturing Engineering

(May 2009 – Feb 2011)

EXPERTISE AND SPECIALISATION

1. Heat Transfer

2. Boiling Heat Transfer

3. Thermo-fluid-physics

4. Statics

5. Dynamics

PROFESIONAL MEMBERS

1. Member – Heat Transfer Society of Japan (HTSJ) – 3362

2. Member – Board of Engineer Malaysia (BEM) - 66171A

3. Member – The Institution of Engineers Malaysia (IEM) – 47634

4. Member – American Society of Thermal and Fluids Engineers (ASTFE) – 10090

EARLY EDUCATION

1980-1985 Sekolah Rendah Kebangsaan Iskandar, Alor Setar, Kedah, Malaysia.

1991-1993 Kolej Sultan Abdul Hamid, Alor Setar, Kedah, Malaysia.

1994-1995 Maktab Rendah Sains Mara, Beseri, Perlis, Malaysia.

1996-1997 Ambang Asuhan Jepun, Universiti Malaya, Kuala Lumpur, Malaysia.

RESEARCH GRANT

National

1. Short Term Grant UniMAP

Preliminary Study of Cement Mixture Using Waterfall Stone Powder and Construction

Waste

Grant Number : 9001-000183

Joint Collaboration with Cement Industries Malaysia Sdn. Bhd. (CIMA)

Main Researcher : Suhaimi bin Illias

Amount : RM 10,000.00


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2. Fundamental Research Grant Scheme (FRGS)

Fundamental Study of Fracture Mechanics Analysis of Multiple Edge Cracks Using

Multiple Sharp Cuts

Dr. Muhamad Saifuldin Abdul Manan, Dr.Haftirman, Mr. Suhaimi Illias, Mr. Ahmad

Syayuthi Abdul Rahman, Mr. Azmi Harun, Mr. Mohd. Nasir Mat Saad

Co-Researcher : Suhaimi bin Illias

Amount : RM 41,000.00

3. Anugerah Kecemerlangan SLAB/SLAI

Tabung Penyelidikan Jangka Pendek


Main Researcher : Suhaimi bin Illias

Amount : RM 10,000.00

4. Fundamental Research Grant Scheme (FGRS)

FRGS 2015-1

Spray characteristics in multiple-fluid atomizer operating with palm based biofuels blend


Dr. Mohamad Shaiful Ashrul Ishak, Prof. Dr. Nazry Jaafar, Dr. Abdul Haqi Bin Ibrahim,

Dr. Suhaila Hussain, Dr. Suhaimi Illias

Co-Researcher : Dr. Suhaimi bin Illias

Amount : RM 59,243.00

5. Fundamental Research Grant Scheme (FRGS)

FRGS 2015-1

Fundamental Study of Droplet Evaporation Process for Heat Transfer Optimization

Dr. Suhaila Hussain, Dr. Mohamad Shaiful Ashrul Ishak, Dr. Suhaimi Illias, Kartini Alir,

Atikah Awang, Shafizan Shariffuddin


Amount : RM 61,305.00

6. Prototype Research Grant Scheme (PRGS)

PRGS 2016-1

Multiple Inlet Swirler Stabilized Burner Inside Gas Turbine For Biofuels Combustion

Dr. Mohamad Shaiful Ashrul Ishak, Prof. Dr. Nazry Jaafar, Dr. Suhaimi Illias, Dr. Suhaila

Hussain


Amount : RM 121,000.00


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Research Grant Amount

1. Short Term RM 10,000.00

2. FRGS RM 41,000.00

3. Excellent Award RM 10,000.00

4. FRGS RM 59,243.00

5. FRGS RM 61,305.00

6. PRGS RM 121,000.00

Total RM 302,548.00

EXHIBITION

National

1. Ekspo Rekacipta & Penyelidikan UniMAP 2008

Cement Mixture Using Waterfall Stone

Suhaimi ILLIAS, Mohamad Hatta Musa, Narzrezal Abdul Razak

Bronze Medal


Commercial Product From Sandstone

Suhaimi ILLIAS, Dr. Saifuldin Abdul Manan, Mohamad Hatta Musa

Narzrezal Abdul Razak

Bronze Medal


Low Cost Product From Rice Husk


Gold Medal


Portable Mucus Sucking Kit (Pomus Kit)

Dr. Suhaimi Illias, Dr. Shaiful Ashrul Ishak, Dr. Suhaila Hussain, Dr. Humaizi Hilmi, En.

Jamali, En. Hatta Musa, En. Narzrezal Abdul Razak

Gold Medal


Pulse Jet Air Dryer

Ir. Dr. Mohamad Shaiful Ashrul Ishak, Dr. Suhaimi Illias, Dr. Suhaila Hussain, Dr. Mohd.

Nazri Omar, Nor Zaiazmin Yahaya, Amirah Mohamad Sahar, Muhammad Roslan Rahim,

Suhelmi Senawi

Gold Medal (Best of the Best Award)


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International

1. 20th

International Invention, Innovation & Technology Exhibition ITEX 2009,

Kuala Lumpur, MALAYSIA

Cement Mixture Using Waterfall Stone Powder


Bronze Medal

2. 21st International Invention, Innovation & Technology Exhibition ITEX 2010,

Kuala Lumpur, MALAYSIA

Commercial Product from Sandstone Powder

Suhaimi ILLIAS, Dr. Muhamad Saifuldin Abdul Manan, Mohamad Hatta Musa,

Narzrezal Abdul Razak

Silver Medal

3. 22nd

International Invention, Innovation & Technology Exhibition ITEX 2011, Kuala

Lumpur, MALAYSIA

Low Cost Product From Rice Husk


Silver Medal

PUBLICATIONS

Article in Proceedings and Journals

2005

1. Generation of microbubble in the droplet collision boiling system.

Shigeaki Inada* , Kazuaki Shinagawa, Suhaimi Illias .

The 42th National Heat Transfer Symposium, Sendai Japan 2005.

2006

2. The effect of heating surface material on the miniaturization boiling in the droplet

collision boiling system’.

Suhaimi Illias*, Shigeaki Inada, Hikaru Ono.

The 43th National Heat Transfer Symposium, Nagoya , Japan 2006

3. Effects of wettability of heating surface materials on the miniaturization boiling in a

droplet collision boiling system.

Suhaimi Illias*, Shigeaki Inada.

International Symposium on Micro and Nano Technology, Taiwan 2006.

4. Mechanism elucidation for the miniaturization boiling phenomenon in droplet collision

boiling system.

S.Inada*, H. Sumiya, K.Shinagawa, S.Illias .

International Heat Transfer Conference, IHTC-13, Australia 2006.

2007

5. A Study of the dispersion Behavior of a droplet colliding with a heating surface.

Kazuaki SHINAGAWA*, Suhaimi ILLIAS, Hisanobu KAWASHIMA, Shigeru Uchiyama,

Yoshimitsu TAKAHASHI, Shigeaki INADA.

The 44th National Heat Transfer Symposium, Nagasaki, Japan 2007.


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6. Effects of Wettability of Heating Surface Materials on the Miniaturization Boiling and

Film Boiling in the Droplet Collision Boiling System.

Suhaimi Illias * , Hazry Desa and Wan Abdul Rahman

International Symposium on Advanced Technology MJISAT 2007, Kuala Lumpur.

7. Effects of Wettability and Materials Morphology on the Miniaturization Boiling.

S.Illias*, M.A.Idris, M.A.A.Halim, A.Mohamad.

Conference on Applications and Design in Mechanical Engineering CADME 2007, Perlis,

MALAYSIA

8. Development on multiobjective fuzzy optimization method in intelligent machinery

application’.

M.A.A.Halim*, A.H.Adom, A.Mohamad, S.Illias.

Conference on Applications and Design in Mechanical Engineering CADME 2007, Perlis.

2008

9. Effects of Wettability of Heating Surface Materials on the Film Boiling.

S.Illias*, M.A.Idris, W.A.Rahman, H. Azmi, M.A.A. Halim.

Malaysian Technical Universities Conferences on Engineering and Technology MUCET 2008,

Perlis.

10. Application of Wireless Power Transmission for Biomedical Implantable Organ H.Mansor

*, M.A.A.Halim, M.Y.Mashor, S.Illias.


Perlis.

11. GD&T Applied on Engineering Drawing. H.Azmi

*, Z.Shayfull, K.Akmal, S.Illias.


Perlis.

12. Elucidation of Miniaturization Boiling Mechanism in the Droplet Collision Boiling

System

Shigeaki Inada*, Hisanobu Kawashima, Kazuaki Shinagawa, Suhaimi Illias, Manabu

Nakagawasai, Kohei Hayasaka

The Seventh JSME-KSME Thermal and Fluids Engineering Conference

13-16 October 2008, Sapporo, JAPAN.

2009

13. The Concept and Application of Miniaturization Boiling in Cooling System Suhaimi ILLIAS

* and Muhammad Asri IDRIS

International Nuclear Conference 2009 INC 09

29 June – 1 July 2009 PWTC, Kuala Lumpur, MALAYSIA

14. Visual Studies on Film Boiling

S.Illias*, M.A.Idris, M.S.Abdul Manan, H. Azmi, M.F.Ghazali

International Conference on Applications and Design in Mechanical Engineering, ICADME

11-13 Oktober 2009 Hotel Bayview, Penang, MALAYSIA


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15. Study of non – Uniform Stress Distribution to Predict Stress Intensity Factors of Two

Edge Cracks

M.S.Abdul Manan*, S.Illias and K.A.Ismail

International Conference on Applications and Design in Mechanical Engineering, ICADME

11-13 Oktober 2009 Hotel Bayview, Penang, MALAYSIA

16. Modification of Weight Function Method to Predict Stress Intensity Factors of Two

Cracks M.S.Abdul Manan

*, S.llias, M.F Ghazli

Malaysian Technical Universities Conference on Engineering and Technology, MUCET

June 20-22, 2009, MS Garden, Kuantan Pahang, MALAYSIA

17. Change-over Time Improvement through Single Minute Exchange of Die (SMED)

Technique M.F.Ghazali

*, R. Muhammad, Z.Shayfull, S.Illias and R.Hamidon

International Conference on Advances in Mechanical Engineering, ICAME

24-25 June 2009, Shah Alam, MALAYSIA

18. Analyzing Benefits of 5S : A Process Sector Case Study M.F.Ghazali

*, R.Muhammad, Z.Shayfull, S.Illias

International Conference on Advances in Mechanical Engineering, ICAME

24-25 June 2009, Shah Alam, MALAYSIA

2010

19. Visual Studies Of A Droplet Dispersion Behavior On Material Heated Surface

S.Illias*, O.Inayatullah, M.S. Abdul Manan, M.F. Ghazali, M.A.Idris

Seminar Kebangsaan Aplikasi Sains dan Matematik, SKASM 2010

8-10 Dis 2010, Johor Bahru, MALAYSIA

20. Analisis Isyarat Pancaran Akustik Dalam Pemantauan Kelikatan Minyak Enjin : Nilai

Purata Amplitud (NPA)

O. Inayatullah*, S.Illias, M. S. A. Manan, N. Jamaludin, M.J.M.Nor, F. Mat

Seminar Kebangsaan Aplikasi Sains dan Matematik, SKASM 2010

8-10 Dis 2010, Johor Bahru, Malaysia.

2011

21. The Concept and Application of Miniaturization Boiling In Reactor Cooling System

S.Illias*, M.A.Idris, M.Z.M. Zain

International Review of Mechanical Engineering (IREME) : May Edition

[International Journal : Indexed in Scopus]

22. Experimental Studies of Film Boiling Phenomena on Carbon Heated Surface

S.Illias*, M.A.Idris, M.Z.M. Zain

International Review of Mechanical Engineering (IREME) : July Edition

[International Journal : Indexed in Scopus]

2012

23. Measurement of Surface Temperature and Surface Heat Flux During Impact of a

Droplet on Hot Surface

Y. Mitsutake*, S. Illias, A.K. Mozumder, M.Monde

The 49th National Heat Transfer Symposium, Toyama , Japan 2012


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24. Improvement of corrosion resistence of Rare Earth Element (REE) Based Anodic

Oxidation Coating on AZ91D Magnesium Alloy

M.Z.M. Zain*, S. Illias, M. Mat Salleh, K.A Ismail, Z. Nooraizedfiza

Applied Mechanics and Materials Vol. 187 (2012) pp 210-214

25. Measurement and Observation of Transient Boiling Phenomena During Sudden Contact

of Ethanol Droplet with Hot Surface

Y. Mitsutake*, S. Illias, A.K. Mozumder, M. Monde

Proceeding of 4th Asian Joint Workshop on Thermophysics and Fluid Science, October 14-17,

2012, Busan, Korea.

2013

26. Visual Studies and Measurement of Surface Temperature and Surface Heat Flux During

Impact of a Droplet on Hot Surface

S. Illias*, K. Kenryu, N. Ryosuke, Y. Mitsutake, M. Monde

The 50th National Heat Transfer Symposium, Sendai , Japan 2013

27. Effect of heat treatment on microstructure and corrosion behavior of Az91d magnesium

aloi

T. C. Lih*, M.Z.M. Zain, S. Norbahiyah, K.A. Ismail, M.N.B. Derman, S. Illias

Advanced Material Research Vol. 685 (2013) , pp. 102-106.

2014

28. Experimental Study of generation time of stable vapor film during impact of a single

and multiple droplet on hot surface

S. Illias*, Y. Kojima, N. Koto, S. Fukushima, Y. Yamashita, Y. Mitsutake, M. Monde

The 51st National Heat Transfer Symposium, Hamamatsu , Japan 2014

29. Generation Time of Stable Vapor Film during Impact of a Droplet on Hot Surface S. Illias

*, M. N. Hasan, Y. Mitsutake, M. Monde

Thermal Science and Engineering, Vol. 22, No. 2(2014), pp. 21.

30. High Speed Observation and Measurement of Surface Tempearture and Surface Heat

Flux During Impact of a Droplet on Hot Surface

S. Illias*, M. N. Hasan, Y. Mitsutake, M. Monde

International Heat Transfer Conference, IHTC-15, Kyoto, 2014.

31. Homogeneous Boiling Explosion Condition : From an Energy Point of View

M. N. Hasan*, A. Hasan, S. Illias, Y. Mitsutake, M. Monde

International Conference on Mechanical Engineering 2013, (ICME2013) 20-21 June, Dhaka,

Bangladesh

32. Characteristics of Homogeneous Nucleation Boiling in Ethanol during Rapid Linear

Boundary Heating


International Conference on Mechanical Engineering 2013, (ICME2013) 20-21 June, Dhaka,

Bangladesh


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33. Measurement and observation of elementary transition boiling process after sudden

contact of liquid with hot surface

Y. Mitsutake, S. Illias, K. Tsubaki, M.N. Hasan, M. Monde

6th BSME International Conference on Thermal Engineering (ICTE 2014), 19-21 December

2014, Dhaka, Bangladesh.

34. Homogeneous Boiling Explosion Condition : From an Energy Point of View


Procedia Engineering 90 (2014) 618-623.

35. Characteristics of Homogeneous Nucleation Boiling in Ethanol during Rapid Linear

Boundary Heating


Procedia Engineering 90 (2014) 624-630.

36. Experimental Investigation of Stable Vapor Film Generation Time and Wetting

Temperature Shift during Impact of a Droplet with Hot Surface

Suhaimi Illias, Shinpei Fukushima, Hisayoshi Soejima, Yuichi Mitsutake, Masanori Monde

Proceedings of 5th Asian Joint Workshop on Thermophysics and Fluid Science

September 23-26, 2014, Nagasaki, Japan.

2015

37. Measurement and observation of elementary transition boiling process after sudden

contact of liquid with hot surface

Y. Mitsutake*, S. Illias, K. Tsubaki, M.N. Hasan, M. Monde

Procedia Engineering, Vol 105, pp. 5-21 (2015).

38. Characteristics of transient heat transfer and wetting phenomena during laminar jet

quenching on rotating cylinder

Shinya Tsuboyama*, Tomofumi Higashi, Yuichi Mitsutake, Suhaimi Illias, Aloke Kumar

Mozumder, Koutarou Tsubaki, Masanori Monde


39. Application of the spray quenching to T6 heat treatment of thick A6061 hollow cylinders Hisayoshi Soejima

*, Yuichi Mitsutake, Suhaimi Illias, Koutarou Tsubaki, Masanori Monde


2016

40. Micro-bubble emission boiling with the cavitation bubble blow pit

Shigeaki Inada*, Kazuaki Shinagawa, Suhaimi Bin Illias, Hiroyuki Sumiya, Helmisyah A.

Jalaludin

Scientific Reports 6, 33454.

41. Performance of Palm Oil-Diesel Blending inside Liquid Spray Burner

M. S. A. Ishak*, S. Illias, M. N. M. Jaafar

International Journal of Applied Engineering Research 11 (8), 6003-6006.

42. High speed visualization and analysis of maximum spreading of water droplet during

impact on hot horizontal surface

S. Illias*, M. S. A. Ishak, S. Hussain, K. A. Ismail

International Journal of Applied Engineering Research, Vol. 11 (22) pp. 10382-10387.

https://scholar.google.com/citations?view_op=view_citation&hl=en&user=FX4_ZiwAAAAJ&sortby=pubdate&citation_for_view=FX4_ZiwAAAAJ:5nxA0vEk-isC


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2017

43. Visual study of droplet bouncing phenomena upon impact on hot horizontal surface

S. Illias, S. Hussain, M. S. A. Ishak, M. Z. M. Zain and M. A. Idris


2018

44. On the equations solved for droplet evaporation simulation S. Hussain and S. Illias



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SUBJECT TAUGHT

Academic Session 2007/2008 First Semester EPT 101 Engineering Mechanics

Second Semester EPT 101 Engineering Mechanics (Material)






Second Semester EBT 131 Engineering Mechanics (Material)

Academic Session 2011/2012 First Semester EPT 212 Dynamics

Second Semester Further studies (PhD)

Academic Session 2012/2013 First Semester Further studies (PhD)





Second Semester EPT 324 Heat Transfer

Dr. Taufiq*/Dr. Suhaimi


Dr. Suhaimi*


Dr. Suhaimi*/Dr. Taufiq


Dr. Ezral*/Dr. Suhaimi




Dr. Ezral*/Dr. Suhaimi




13

Final Year Project (FYP) Supervision

Undergraduate

FYP 2007/2008

1. NABIL FIKRI BIN ABD AZIZ (041050435)

Status: Completed

2. TUAN KHAIRUL AFZAN BIN TUAN MUHD SUKELI (041050650)

Status: Completed

FYP 2008/2009

3. MUHAMMAD FARHAN BIN MUHAMMAD TOHA (051050454)

Status: Completed

4. AHMAD HAFIFE BIN HAMZAH (051050034)

Status: Completed

5. MAZILA BINTI MAMAT (051050261)

Status: Completed

6. NORULHAMKHA BINTI ABDUL BASIR (051050554)

Status: Completed

7. NORSUHAILA BINTI ZAKARIA (051120553)

Status: Completed

FYP 2009/2010

8. CHUNG LEE PING (061050136)

Status: Completed

9. MOHD HALIM BIN TUKIMIN (071050475)

Status: Completed

10. MUHAMAD AIMAN BIN ABOL HASSAN (071050541)

Status: Completed

11. MOHD HAFIZ BIN RODZI (071050470)

Status: Completed

FYP 2010/2011

12. FONG AI PENG (071050175)

Status: Completed

13. KOW PHEI YING (071050284)

Status: Completed

14. ANG ENG TATT (071050064)

Status: Completed

15. TAI JIN CHANG (071050969)

Status: Completed


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FYP 2011/2012

Study Leave-PhD

FYP 2012/2013

Study Leave-PhD

FYP 2013/2014

Study Leave-PhD

FYP 2014/2015

Study Leave-PhD

FYP 2015/2016

16. KASTHURI A/P P PANICHELVAM (131050662)

Status: Completed

17. MOI CHUAN SIN (121121044)

Status: Completed

18. GOH WAN GIN (121122631)

Status: Completed

19. MARDHIAH BINTI ABDUL WAHAB (121120740)

Status: Completed

20. TEEVAGAR GABRIALNAYAGAM (131052716)

Status: Completed

21. AZRA IDZKANDAR BIN ABU ZAHAR (121050215)

Status: Completed

FYP 2016/2017

22. FATKHUL AMIN BIN MOHD MOKHLAS (141050769)

Status: Completed

23. MOHD AREEB BIN ANUA (141050788)

Status: Completed

24. HEMALA A/P N JEYAPRAKS (131050581)

Status: Completed

dr. suhaimi bin illias year 2017 curriculum vitae · 1980-1985 sekolah rendah kebangsaan iskandar,...

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