Keynote Speaker I
Prof. Muhammad Yahaya, Emeritus Professor in School of Applied Physics, UKM Malaysia, Malaysia
Speech title: Nanostructured Material for Optical Gas Sensing Devices
Abstract: The accurate detection of gases using their optical properties is highly important in industrial, and environmental applications. The optical detection technique is considered as one of the accurate technique for gas detection and has advanced very rapidly due to rapid progress in detectors and light sources. Basically in optical methods, the optical absorption and scattering of gas at certain wavelength are measured. The distribution of absorption with wavelength provide information on the nature of gas and its concentration. This presentation will review some recent development of optical gas sensors, starting with detection material such as metal oxide nanowires and nanorods that have been synthesized by varieties of techniques such as vacuum evaporation, laser ablation, magnetron sputtering and sol-gel and spectroscopy system. The presentation also includes some of our recent results in using ZnO nanorod for carbon monoxide gas detection.
Biography: Dr Muhammad Yahaya is an Emeritus Professor of Physics at Universiti Kebangsaan. Dr Muhammad Received his Ph.D at Monash University in 1979 and Drs from ITB, Indonesia in 1973. Dr Muhammad has 35 years of teaching and research experience with Universiti Kebangsaan Malaysia , Brown University, USA, Monash University, Australia. He was appointed Head of Physics Department (74-79), Deputy Dean, Center of Postgraduate studies (1994-1999), Director, Research Management Centre, (1999-02) Director, Centre of Academic Advancement, (02-07). Dr Muhammad maintains a diverse research interest including thin films, electronic property of metals, solar energy and computer in physics communication. Dr Muhammad holds membership to various organizations and institutions. He is actively involved in Physics and Science Terminology, Writing Malay language Text book in Physics. Dr Muhammad is currently a member of editorial board, UKM. He was a former president of Malaysian Solid State Science and Technology (1991-2012), Fellow Malaysian Institute of Physics, member IEEE and member Malaysia Materials Science. Dr. Muhammad has received many awards for his academic and professional excellence. He received commonwealth Scholarship and Fellowship plan to pursue his Ph.D (1975) DAAD -German Fellowship (1984), Fullbright fellowship (1984-1985), JSPS Fellowship and Associate member of ICTP,Italy, Fellow, Academy Science Malaysia (2006-now), KMN (1995) Anugerah KMN (1995),Tokoh Ilmuan MABBIM (1997),Award, Recognition of Service UKM (1999),ANS- Negeri Sembilan (2004), Award 'Prominent Physics Figure-UPM (2005)-100 years world year of physics, DSPN (Dato' Penang (2007).
Keynote Speaker II
Prof. Takahiro Ohashi, Kokushikan University, Japan
Speech title: Multi-Point Die Support System for Large Deep Drawings: Development of Manufacturing Technology Endowed with a High Affinity to Information Technology
Abstract: Numerical analysis systems such as FEM have been utilized successfully for predicting accuracy and defects of a product in metal forming; however, they have limitations of ability dealing with the problem due to uncertainty of the actual condition. An analysis model seems to be doomed to never meet for it because of the machine difference and uncertainty of the motion and shape of a tool depending on the play and elastic deformation of a manufacturing machine. For instance, dies of large deep drawings tend to be easy to deform elastically during the process and it is affected by the die-setup and the machine difference (i.e. difference of rigidity of the machine and floor, motion of the slide and reaction of the cushion), therefore, actual contact condition between a die and a press tend to be different form the numerical model. Today, automobile manufacturers are aim to improve design quality of dies with employing information technology (IT) including numerical analysis, and to speed up the design for so-called no trial manufacture; however the above problem is a crucial barrier to it. The author have proposed development of manufacturing technology(MT) endowed with a high affinity to numerical analysis and other information technology(IT) as one of possible solutions for it. For large deep drawing, the author developed the multi-point die support system that supports a die with multiple points with embedded load sensors. The system supports the die more stable than with normal surface support of the die, and provides information about the contact condition between the die and the machine in the process. The author utilized the information for the analysis of elastic deformation of dies for deep drawing for the panels of automobiles in the actual condition. In addition, the author tried to control the surface accuracy of the products by changing the distribution of support points with regarding the information or inserting semi-active controlled support units under the support points.
Biography: Prof. Takahiro Ohashi is Head of Mechanical Engineering Department at Kokushikan University. Prof. Takahiro Ohashi is one of the representative delegate of Japan Society for Technology of Plasticity from April 2016 to now. Also, he is the board of trustees of Aluminum Forging Association in Japan. Prof. Takahiro Ohashi experienced in directing a national research project for a new die structure of Ministry of Economy, Trading and Industry (METI), as well as experienced in directing 3 research teams of National Institute of Advanced Industrial Science and Technology (AIST). Meanwhile, Prof. Takahiro Ohashi gained the Best Paper Award in ICAMEM2016 at April 2016, and won the Second Paper Award in ICMEA2016 at September.
Keynote Speaker III
Prof. Hisaki Watari, Tokyo Denki University, Japan
Speech Title: Application of TRC High Aluminum Content Magnesium Alloys for Hot Forging
Abstract: Possibilities of hot forging of high aluminum content magnesium alloys sheets manufactured by horizontal twin-roll casting process have been discussed. Mg-11%Al-1%Zn, Mg-12%Al-1%Zn and Mg-13%Al-1%Zn which contains relatively high aluminum content magnesium alloys were applied for twin-roll casting, and a hot forging test was performed to manufacture high strength magnesium alloy components economically. In twin-roll casting, casting condition for thick sheet for hot forging was investigated. It has been found that twin-roll casting of about 10 mm thick magnesium alloy sheet was possible at a roll speed of 2.5 m/min. The grain size of cast strip was about 50 to 70 μm. In hot forging test, blank material was obtained from as cast strip. A servo press machine with servo die cushion was used for hot forging test to investigate an appropriate forging condition such as heat temperature, forging load and magnitudes of back pressure for twin-roll cast Mg-11%Al-1%Zn, Mg-12%Al-1%Zn and Mg-13%Al-1%Zn. It has been clarified that high aluminum content magnesium alloys sheets manufactured by twin-roll casting process could be forged at the condition of forging load 150 ton with a back pressure 3 ton at 420 to 430＜C. Applying backpressure during hot forging was effective for successfully forging of pin shape products.
Hisaki Watari has received his PhD in Mechanical System Engineering, from Gunma University, Japan in 2006. He has been researching into properties of magnesium alloy by rapid cooling by using twin roll casting in these fifteen years in Gunma University and Oyama National Colleague of Technology in Japan, in UMIST in the UK. He is now the chair of the Japan Association of Aluminum Forging Technology. He has published more than 130 papers in journals and conducting works relating metal forming of light metals, such as aluminum and magnesium alloys.
Keynote Speaker IV
Prof. Dr. Sinin Hamdan, Universiti Malaysia Sarawak, Malaysia
Speech Title: Wonderful work with wood
Abstract: In this study wood polymer composite (WPC) were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), thermo-gravimetric analysis (TGA) 3-point bending test, free-free-vibration. FTIR result showed that WPCs had more than one carbonyl absorbance band between 1745 and 1690 cm-1. The crystallinity index from XRD (CIXRD) varied for various WPC compared with raw wood. The SEM micrograph of WPC had smoother surface compared with raw wood. The modulus of elasticity (MOE), modulus of rupture (MOR), and dynamic Young's modulus (Ed) of WPCs were higher than raw wood. The raw wood exhibited a higher water uptake compared with WPC. The TGA results showed that WPCs were thermally less stable between 267 and 400 ºC than raw wood.
Biography: Prof. Dr. Sinin Hamdan focus on the field of specialization is Mechanics of Materials based on his PhD in that area from Loughborough University of Technology, Loughborough, England (1994). That educational experience with his MSc in Welding and Adhesive Bonding of Engineering Materials from Brunel University, London (1986) and BSc in Physics (1984) from Universiti Kebangsaan Malaysia allow him to retool himself to fit into Universiti Malaysia Sarawak (UNIMAS) priority area of Materials and Manufacturing when he joined this university in 2001. Prof. Dr. Sinin Hamdan attended a 6 months scientist exchange program (post doc) under Japanese Society for Promotion of Science (JSPS/VCC) in 1999 at Wood Physics Laboratory, Kyoto University and obtained a good experience working with wood physics. From 9-31 March 2003, Prof. Dr. Sinin Hamdan went to Wood Research Institute, Kyoto University, Japan (under Japanese Society for Promotion of Sciences-JSPS) to study The Application of Acoustic Emission Monitoring to Forest Product Research. From 7 May-7 Jun 2007, Prof. Dr. Sinin Hamdan work with Collaboration on Dynamics, Materials and Machining GeM Laboratory, Ecole Central Nantes (ECN), Nantes France. From 1 august-31 october 2012, he worked on gamelan in Physics Laboratory, Loughborough University.