Universiti Sains Malaysia, Malaysia
Internet-of-things (IoT) connecting human with machine through internet aiming to resolve issues of security, health, comfortability and connectivity but attributes to two major global issues, namely waste of energy and disposition of electronic waste. By combining computer hardware (microprocessor) with sophisticated software programming, IoT gadgets with “brain-like” characteristics can be made. However, this artificial intelligent (AI) requires extremely huge amount of energy in order to successfully accomplish an assigned task. In comparison to a human brain, only a sub-fraction of the energy is needed. This is due to the constraint of current technology that utilizing conventional von Neumann architecture type of hardware. The more complicated task to be accomplished by an AI (here mostly refers to software driven type of system), the more energy is required. Even though AI-assisted IoT may benefit mankind as a whole, however, it would significantly worsen issues of energy shortage globally. The imbalance of energy supply (both from renewable or non-renewable source) and demand (escalating needs, production and consumption of smart gadgets related to IoT) desires much attention. Since the number of smart gadgets related to IoT is exponentially increasing, electronic waste, due to short usage time, may also contributing to other global issues namely environmental, health and sustainability of resource. In order to resolve these two global issues, natural organic materials, such as Aloe vera, that are sustainable, biocompatible and biodegradable, can be extracted, formulated and processed into a thin film that can be used as the next generation “brain-like” or neuromorphic computer, which operating with much lower energy required by current technology. In this Lecture, historical development of neuromorphic computing both from the perspective of research and commercialization will be presented. Important components needed for this system would be elaborated with the emphasis of artificial synapses, which serves as an interface between two or more connects for transmitting, processing and storing data with ultra-low energy. This is mimicking a biological synapse in a human brain that connecting neurons.
Biography:
Currently, Prof. Cheong is a Fellow of The Institution of Engineers Malaysia (IEM), Senior Member of Institute of Electrical, Electronic Engineers (IEEE), member of Materials Research Society (USA), committee member of IEEE Electronic Packaging Society (EPS), Malaysia Section. He was the past Chairman (2009 – 2011) and Advisor (2011 – 2012) of Electronic Engineering Technical Division, IEM, a past Council Member of IEM (2009 – 2012), past Region Vice-President of Thin Film Society (2012) (http://www.thinfilms.sg/) and past Vice-Chairman of IEEE, Component, Package and Manufacturing Technology (CPMT) Society, Malaysia Section.
Universiti Sains Malaysia, Malaysia
Glycerol is now excessively produced from oleochemical and biodiesel industry and efforts to convert it to value-added substances are worthwhile. The catalytic etherification of glycerol using mixed calcium–lanthanum oxide supported on MCM-41 as a stable heterogeneous basic catalyst with an ordered pore system was investigated in this study. Particular focus was given on the roles of pore geometry on governing the formation of the desired products i.e. diglycerol isomers. The heterogeneous mesoporous basic catalysts were synthesized by wet impregnation of MCM-41 with calcium nitrate and lanthanum nitrate as precursors. The surface and structural properties of the prepared catalysts were then elucidated using SEM, EDX, XRD and FTIR methods and correlated with their catalytic activities. MCM-41 and modified MCM-41 were then used in the solventless etherification of glycerol to selectively produce diglycerol as the desired product. The reaction was performed at 250 °C for 8 h and catalyst activity was evaluated and correlated with the properties of the catalysts. The conversion of glycerol managed to reach 91.3% and the corresponding diglycerol yield was 42.6%. The high activity was successfully correlated with basicity properties and the pore geometry of the catalysts. The distribution of diglycerol isomer in the etherification of glycerol was also elucidated and the value of the sum of two dimers (ββʼ + αβ = 67%) was found to be higher than that of ααʼ dimer (33%) after 8 h of reaction. Thus, the major reaction was deemed to have occurred mainly inside the internal ordered mesoporous pores instead of on the external surface area when 20% CaLa/MCM-41 was used to catalyze the reaction. The more selective formations of ββʼ and αβ dimers were ascribed to the internal pore geometry of the ordered mesoporous catalyst.
Keywords: Glycerol, Catalytic etherification, MCM-41, Calcium, Lanthanum, Pore Geometry, Diglycerol isomer.
Biography:
Prof Dr. Ahmad Zuhairi Abdullah received his PhD in 2004 in chemical engineering. His research works involve the use of functionalized nanoporous materials in generating renewable energy sources, oleochemical conversions and waste treatment. He used to be involved the environmental impact assessment of oil refinery, petrochemical complex, sanitary landfill, smelting plant, used acid lead battery, paper mill etc. Many international invitations have been received to share his research experience. He has published more than 200 refereed articles in journals. He is one of the recipients of the Top Research Scientists Malaysia 2014 award. His h-index (Scopus) currently stands at 47.
University Putra Malaysia, Malaysia
Natural fibres have been one of the most interesting research topics over the past 20 years as the potential substitution for the synthetic fibre composites. This might be attributed to their excellent properties, such as low cost of production, renewability, biodegradability and availability compared to synthetic fiber composites. Some of the natural fibres that have been used for reinforcing polymer biocomposites include sugar palm, banana pseudo-stem, bamboo, kenaf, jute, hemp, oil palm, pineapple and sisal. Natural fibre composites or biocomposites can be defined as materials that consist of two or more constituent materials, mainly natural fiber reinforcements and synthetic or bio polymer matrices, bonded together. As a result, better properties are obtained in the final biocomposites compared to the constituent materials. Besides, the interest in polymer nanocomposites using nanocelluloses has been found to be of growing tremendously due to the unique characteristics of those nanomaterials, such as abundant surface –OH groups and their associated ease of surface modification, high strength, thermal and crystallinity, (potentially) low cost and renewability. Natural fiber reinforced polymer composites are emerging very rapidly as the potential substitute to the synthetic fibre polymer composites in different industries such as automotive, building, food packaging, aerospace, marine, sporting goods, furniture, biomedical and electronic industries. Besides, building materials from biocomposites are made from straw in United States. Natural fibercomposites are used in transport industries such as automotive (parcel shelves, door panels, instrument panels, armrests, headrests, seat shells, car bumper beam, under-floor protection for passenger cars, rear view mirror, visor in two wheeler, billion seat cover, indicator cover, cover L-side and name plate), rail (interior paneling for rail vehicles, train seat paneling and door leaves), aircraft (radome, interior and exterior body panels such as in seat cushions, cabin linings, parcel shelves etc.) and marine (hull and deck). Through the substitution of some of the heavier parts with natural fibre composites with high performances can reduce vehicle weight, which in turn lowered the fuel consumption and CO2 emission. In this lecture, different aspects of natural fibre composites such as performance, conceptual design, materials selection and design for sustainability are addressed.
Biography:
S. M. Sapuan is a professor of composite materials and Head of Advanced Engineering Materials and Composites Research Centre, University Putra Malaysia. He earned his B. Eng degree in Mechanical Engineering from University of Newcastle, Australia in 1990, MSc from Loughborough University, UK in 1994 and Ph.D from De Montfort University, UK in 1998. His research interests include natural fiber composites, conceptual design, biobased packaging, materials selection and concurrent engineering. To date he has authored or co-authored more than 1300 publications (over 700 journal papers), books (17), edited books (13), chapters in books (110) and conference proceedings/seminars (700 papers). S. M. Sapuan was the recipient of Rotary Research Gold Medal Award 2012, Alumni Awards, University of Newcastle, NSW, Australia, Khwarizmi International Award (KIA) and 5 Star Role Model Supervisor award by UPM. S. M. Sapuan was recognized as the first Malaysian to be conferred Fellowship by the US-based Society of Automotive Engineers International (FSAE) in 2015. He was the 2015/2016 recipient of SEARCA Regional Professorial Chair. In 2019 ranking of UPM researchers based on the number of citations and h-index by SCOPUS, he is ranked the first. Recently, he was awarded National Book Award, The Best Journal Paper Award, UPM, Outstanding Technical Paper Award, Society of Automotive Engineers International, Malaysia and Outstanding Researcher Award, UPM. He also received Citation of Excellence Award from Emerald, UK, IEEE/TMU Endeavour Research Promotion Award and Best Paper Award by Chinese Defense Ordnance, Malaysiaʼs Research Star Award (MRSA), from Elsevier, Professor of Eminence Award from Aligarh Muslim University, India, Distinguished Researcher Award from INTROP, UPM and Top Research Scientists Malaysia Award from Academy of Science, Malaysia.
1Shanghai Research Institute of Microelectronics, Peking University, China
2School of Electrical Engineering and Computer Sciences, Peking University, China
3Semiconductor Manufacturing International Corporation, China
Graphene is a material with unique electronic transport properties, which make it an excellent candidate for advanced applications in future microelectronic devices and circuits. In this paper, we discuss first the basic electronic structure and transport properties of graphene and the fabrication of field-effect transistor (FET) and other devices, then focus on the explorations of ESD protection application of graphene-based nanoelectro-mechanical system (gNEMS) with characteristics of almost zero leakage, excellent high speed switching and high frequency application of graphene transistors with record-high cutoff frequencies, maximum oscillation frequencies and voltage gain. Results of experimental investigations and physical insights into the reliability issue and failure mechanism of the graphene ESD device by transient transmission line pulse (TLP) measurement will be presented in detail, while the potential of graphene in high-speed analog electronics is being explored.
Biography:
Yuhua Cheng, IEEE Fellow, received the BSEE, MSEE and Ph.D. EE degrees in Shandong Polytechnic University, Tianjin University and Tsinghua University, China in 1982, 1985 and 1989, respectively. In 1990, he joined in the Institute of Microelectronics (IME), Peking University, China and become an associate professor in 1992. From 1994 to 1996, he worked at academic research positions in Norwagian University of Science and Technology and UC Berkeley. From 1997-2006, he worked at technical and management positions in Rockwell, Conexant, Skyworks and Siliconlinx in USA. He is now a full professor of Peking University and Dean of Shanghai Research Institute of Microelectronics, a remote research center located in Shanghai. His research interests include advanced analog/mixed-signal/RF IC designs and SiP design for system integration applications.
Multimedia University, Malaysia
In modern microelectronic technology, soldering continue to play an important role. In this paper, the evolution of solder alloy from lead solder to latest research on lead-free solder will discussed. The discussion included characteristic for various types of solders, melting temperature, wettability and the microstructure of the solder. In this paper, the discussion about the influence of additional particle in solder alloy as the latest research also included.
Biography:
Assoc. Prof. Ts. Dr. Ervina Efzan currently, Deputy Director Research Management Centre in Multimedia University. She completed her PhD in Materials Engineering (Advanced Materials) from the Universiti Sains Malaysia. Her research is focused primarily to soldering, intermetallic and alloys, aluminium foam and nanostructured metal fabricated by powder metallurgy, mechanical alloying, nanomaterial and solar energy. Dr. Ervinaʼs research interest also covers metal joining and soldering techniques. She has more than 30 international publications including chapter in books, book and one Malaysian Patent.
Dr. Ervina has received awards from Global Women Invention & Innovation Network (GWIIN) 2019, Telekom Malaysia; GCEO Award 2017, Kristal Award and Green Award 2017 and 2018 by Melaka State, Malaysia. In addition, she has received many other awards for her research such as Special Award from Thailand Innovation Association, Romanian Forum Inventor and World Invention Intellectual Property Associations. Currently, Dr. Ervina is actively involved as reviewer in journals including Journal of Alloys and Compound, Powder Metallurgy, Materials Science and Technology, Soldering and Mount technology and Solar Energy. She is also actively involved in consultancy for various government institutions and private companies including conducted training courses for Dyson Sdn. Bhd., CTRM Sdn. Bhd., Infineon Sdn Bhd and Ministry of Health, Malaysia.
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