Title: A study for optical and structural properties of CuInS2 nanoparticles

Abstract:

Copper indium sulfide (CuInS₂) is one of the most promising ternary materials to be used in many applications because of its suitable optical band gap, cost-effective and non-toxic. CuInS₂ nanoparticles have been synthesized at different copper to indium (Cu/In) molar ratios; 0.1, 0.5, 0.8, 1.2, and 1.4. Subsequently, these were deposited on glass substrates and under annealing temperature 300 ^°C via the electrospinning method. The optical properties have been analyzed at room temperature using UV-visible (UV-vis) spectroscopy which revealed a decrease in the optical bandgap from 1.52 to 1.32 eV with increasing Cu/In molar ratio. The structural properties have been analyzed in detail by X-ray diffraction (XRD), the patterns shown improvement in the quality and size of the ternary crystals with increasing the Cu/In molar ratio.

Biography:

 Ali Abu Odeh has extensive experience in the academic field which extends to more than 21 years. He is currently an assistant professor at Khawarizmi International College. Prior to his current role, he worked in the colleges of Engineering in the United Arab Emirates University and Qatar University. He earned his Ph.D. degree in Nanoelectronic Engineering from University Malaysia Perlis in 2018. His master's degree was in Electrical and Computer Engineering from the New York Institute of Technology since 2007. He published many peer-reviewed papers with impact factor in ISI and Scopus indexed journals. He is an editorial board member, peer-reviewer, and keynote speaker for many journals and conferences. He received two awards for his research in the University Malaysia Perlis.

Title: Unlocking Nature's nano-engineering potential

Abstract:

Nature's supreme dexterity in hierarchical structuring manifests itself in the remarkable complexity of higher organisms that arises from cell differentiation. But even some of the simplest organisms present in abundance at the Earth surface demonstrate tremendous ability to create intricate nanostructures, including using hard and stiff materials, such as silica and calcium carbonate. As a case in point, we consider unicellular green algae, diatoms. These CO2 capturing, photosynthesizing organisms produce around a quarter of oxygen contributed to the atmosphere by this mechanism, and generate a quarter of all biomass on the planet. A key feature of diatom algae is the nanostructured exoskeleton, known as frustule, that is made from amorphous hydrated silica. I shall overview some key aspects of this Nature's nano-fabrication facility, and touch upon their significance in the context of different disciplines, from mineralogy to electronics."

Biography:

Alexander M. Korsunsky is a specialist in the engineering microscopy of materials and structures for optimisation of design, durability and performance. He has made numerous contributions to science in the areas of materials mechanics, microscopy, residual stress evaluation and modelling, eigenstrain theory and structural integrity. He founded the Multi-Beam Laboratory for Engineering Microscopy (MBLEM) in the University of Oxford, Department of Engineering Science, and Centre for In situ Processing Studies (CIPS) in the Research Complex at Harwell. His research group pursues studies of a wide range of natural and engineered materials, from flax fibres, seashell nacre and human dental tissues to zirconia ceramics and porcelain veneers, advanced aerospace alloys, films and coatings, and materials for energy.

Title: Innovations in Direct Digital Manufacturing Using Multi-material, High-Speed 3D printing, and Design for Additive Manufacturing

Abstract:

Direct Digital Manufacturing (DDM) incorporated additive manufacturing (AM) capabilities of fabrication of functional parts directly from CAD file with ultimate ease. Unlike rapid prototyping which produces prototypes, DDM uses various AM tools like page-wide printing, multi-material, topology optimization for on-demand, low capital expenditure, unlimited complex design, and innovative products for mass production and customization. Multi-material printing coupled with DDM has opened new horizons for manufacturers to develop a totally new market with minimal risk to time and cost. The upcoming key technology and tools for DDM would be high-speed 3D printing with page-wide technology which is a hybrid process, applied with the concept of design for additive manufacturing and post-processing. Design for additive manufacturing with unlimited design ease enables the user to design innovative cellular lattice structures and intricate geometries. These structures bring superior properties like good strength-to-weight ratio, high surface area, higher load-bearing capacity, excellent shock, and energy absorption compared to solid material with conventional manufacturing. The major challenges of DDM include post-processing 3D printed parts but the NTUST concept of high-speed printing, supportless lattice structure, and ventilated lattice structure easily mitigated this problem. Similarly, 1 st ever successful attempt of additively manufactured wave springs has proven its worth for the different industrial applications with superior mechanical properties to other types of springs. The designing of lattice structures with different tessellations and foam filling lattices designs gave the researchers a new direction to design application base end-use components. The foam in the printed cellular as well as the wall thickness of the structure significantly enhances the mechanical properties, particularly energy absorption capabilities which are isotropic in behavior. Also, research is underway to develop new materials for better printability with improved mechanical properties of 3D manufactured parts. Hence, it is evident that AM will get its boom due to the filling of secondary material inside the cells for a vast variety of industrial applications.

Biography:

Prof. Jeng-Ywan Jeng currently is a distinguished professor at the National Taiwan University of Science and Technology, Taiwan, and an Ex-Director of High-speed 3D printing center. His research is multi-dimensional and full of innovative concepts, mainly focused on High-speed additive manufacturing, digital manufacturing, lasermaterial interaction, design for additive manufacturing, 3D printing technology, and multi-material printing. He is the founder of start-ups like T3D, Taiwan tech digital. He was a consultant of many leading industries like Tatung, Pouchen, Franz, Aviocast, and universities including Lunghwa University of Science and Technology, Taiwan. He is also an independent director of Global Wafers, ANT precision industry, and ACTRON technology. He earned his PhD from The University of Liverpool, UK.

Title: Diamond-Like Carbon (DLC) nanocomposite coating application on selector shaft for friction reduction in double diaphragm pump application

Abstract:

A positive displacement pump known as a double diaphragm employs two flexible diaphragms that reciprocate back and forth to generate a temporary chamber used to draw and eject fluid. The diaphragms work as a separation wall between the air and the liquid. M Pump & Engineering Sdn Bhd is a Malaysian pump manufacturer located in Penang. This company's primary product is double diaphragm pumps which applied at a variety industrial applications. This pump's performance will be enhanced by the application of a Diamond-Like-Carbon (DLC) nanocomposite coating which manufacturer by Surtreat Solution Sdn Bhd. This coating will reduce the friction of the selector shaft during the pump operation, hence improved the shelf life. Due to their superior mechanical and tribological performance, DLC coatings are gaining popularity in the various industrial sector. DLC coatings are chemically inert, biocompatible, thermally stable up to 300°C, and resistant to oxidation. In addition to the aforementioned benefits, however, DLC coatings have high residual stresses and lower toughness, which restricts their use in a range of applications, particularly those demanding mechanical performance. Since 1985 the improvement in DLC quality is intensively being analyzed in two main domains: one is the operational parameters such as plasma potential, ion energies, power source, etc., and the other is the formation of DLC nanocomposite coating by doping foreign elements. In this study, different doping materials were combined with a DLC layer to form a better nanocomposite layer. The characterization of tribology properties such as hardness test, scratch test, and coefficient of friction (COF) was fully utilised, and the appropriate DLC nanocomposite coating for this application was introduced.

Biography:

Muhammad Hafiz HASSAN has completed his PhD in Mechanical Engineering and currently work as a senior lecturer at Universiti Sains Malaysia. He is a Techinical Advisor in Research and Development Division at M Pump Engineering Sdn Bhd, which is Malaysian pump manufacturer that located in Penang. His major expertise is focus on advanced composite manufacturing and advanced composite machining in an aircraft application. Currently, his research area focus on the developing a Diamond-Like-Carbon (DLC) nanocomposite coating at a various application. The main focus area of the application is on a cutting tool for drilling composite materials and pump component, which able to improve their shelf life.  He has published about 29 articles in reputed journals and  book chapters which related to the composite materials and manufacturing.

Title: Graphene based nanocomposite and its application in repair and replacement of of human organs

Biography:

Alexander Seifalian, Professor of Nanotechnology and Regenerative Medicine worked at the Royal Free Hospital and University College London for over 26 years, during this time he spent a year at Harvard Medical School looking at caused of cardiovascular diseases and a year at Johns Hopkins Medical School looking at the treatment of liver. He published more than 647 peer-reviewed research papers and registered 14 UK and International patents. On editorial boards of 41 journals. He is currently CEO of NanoRegMed Ltd, working on the commercialization of his research. During his career, Prof Seifalian has led and managed many large projects with successful outcomes in terms of commercialisation and translation to patients. In 2007 he was awarded the top prize in the field for the development of nanomaterials and technologies for cardiovascular implants by Medical Future Innovation, and in 2009 he received a Business Innovation Award from UK Trade & Investment (UKTI). He was the European Life Science Awards’ Winner of Most Innovative New Product 2012 for the “synthetic trachea”. Prof Seifalian won the Nanosmat Prize in 2013 and in 2016 he received the Distinguish Research Award in recognition of his outstanding work in regenerative medicine from Heals Healthy Life Extension Society. His achievements include the development of the world first synthetic trachea, lacrimal drainage conduit, and vascular bypass graft using nanocomposite materials, bioactive molecules and stem cell technology. He has over 15,000 media report from his achievement; include BBC, ITV, WSJ, CNN, and many more. Currently, he is working on the development and commercialisation of human organs using graphene-based nanocomposite materials and stem cells technology. He has commercialised a novel functionalised graphene oxide for medical and other industrial applications. He also commercialised new biodegradable nanocomposite materials for medical and other industrial applications.

Title: Protecting the World’s Electronics

Abstract:

Water damage is the second biggest killer of smartphones (with scratched or broken screens at number one). Dr. Coulson will explore the range of water protection technologies that are now available and will explain the potential benefits that can be achieved with each. Demand for such technologies is increasing as consumers are taking their phones into harsher and harsher environments and becoming more and more reliant on them for everyday life. In this presentation we will review and compare the various water protection technologies spanning from protection against humidity and weather, to splashes and spills and immersion of at least 2 metres depth for 30 minutes and show how they can increase reliability and durability of electronic devices.

P2i is a spin-out from the UK Ministry of Defence (Dstl) based on the original research work carried out at Durham University in the late 90’s.

Today, P2i have successfully scaled-up for mass manufacturing across a range of key sectors, with over 500 million electronic devices processed. P2i is now the Global Leader in Liquid Repellent Nanotechnology. Dunkable® is the latest addition to P2i’s product family, which is a system level solution that delivers IPx8 level protection, giving ruggedized performance without compromising on aesthetics or product design.

Biography:

Stephen Coulson has worked in the nano-coating industry for over twenty years. He developed a series of hydrophobic coatings during his Ph.D. studies at the U.K.’s Durham University. This research was sponsored by the U.K.’s Ministry of Defence, through Dstl, to investigate uses for liquid repellent nano-coatings to protect soldiers’ uniforms from chemical attack. The coatings that Dr. Coulson developed provided the highest levels of defense against liquids, without affecting the breathability of the material. Dr. Coulson then went on to found P2i in 2004 to commercialise the many commercial applications of the technology. After several years of success in the lifestyle, filtration and life-science sectors, Dr. Coulson and the P2i team further optimised the technology for the electronics market and now the technology is used by some of the biggest manufacturers in the consumer electronics world. After leading the R&D team to deliver the coating technology for P2i’s Splash-proof, Barrier Coating, and Dunkable® products, Dr. Coulson is now focused on the productization of these technologies to embed them into the electronics sector.

Title: Photo and Thermal degradation of Plasticized para- Substituted polystyrene in solid films

Abstract:

In recent years, much attention has been focused on research to prepare new generation of Poly (para – substituted styrene), and to study the irradiation, thermal and plasticization effects on stability of these new polymers. The effect of irradiation of plasticized Para- substituted polystyrene in solid films was studied at different intervals of irradiation times and at different percentages of added phthalates and terephthalate plasticizers. The degradation process was followed by UV-VIS, Fluorescence and FT-IR Spectroscopic techniques. to determine the type and amount of degradation that occurs during irradiation. The irradiated pure and plasticized polymers solid films showed an increase in the intensity of absorption band by the increase in irradiation time and increase in the amount of added plasticizers. On the other hand the intensity of fluorescence was decrease upon the increase in irradiation time and increase in the amount of blended phthalate and terephthalate plasticizers.  The analysis of the FT-IR spectra of the irradiated and non-irradiated samples, showed a noticeable formation of new bands, and their intensity was found to increase with the increase in irradiation time and also with the increase in the amount of added plasticizer. In addition, the observed increase in the intensities of the carbonyl and hydroxyl absorption regions of the FT-IR spectra, providing evidence for the photodegradation as well as photo-oxidation of polymeric chains. Some kinetics work was applied to the results on fluorescence intensity of the excimeric emission to evaluate the quenching efficiencies and photo quenching rate constant by applying Al Ani – Hawi equation. Electrophile substitution such as (Cl, and Br) in the para position of the polymer backbone should less stability towards UV – Irradiation, whereas, nucleophilic substitution such as ( - H, -CH₃, -OCH₃, -OC₂H₅, -C₆H₅, α – CH₃, α –OCH₃, Phenyl and – C (CH₃)₄ should higer stability towards irradiation of plasticization. Among the para-substituted polystyrene, Poly (4- fluorostyrene) should a very high stability towards irradiation and plasticization that all polymers used in these studies. It is even more stable than polystyrene, The mechanism of the photodegradation of these irradiated polymers was found to started from abstraction of α – hydrogen atom from the phenyl group followed by a random chain scission in the polymer backbone. A reposed mechanism for the photodegradation of para-substituted styrene in solid films and in solution was based on the decrease or increase in the functional groups the appears from the FT – IR spectra of irradiated solid films.

Biography:

 Al Ani has completed his PhD at the age of 26 years from Southampton University - England , UK,  and postdoctoral studies from Texas University, Austin, Texas - USA .He was a visiting professor at Liverpool University at the Inorganic and industrial department, Liverpool – England, UK.. He has a professor post at Baghdad University, Department of Physical Chemistry – Iraq, a professor of physical chemistry at Oran university of science and technology – Algeria, also at the Hashemite University – Jordan.  He was dean of Faculty of Pharmacy (2014 – 2017) at Jadara University, Jordan. Currently, he is Head of the Pharmaceutical Sciences at Jadara university – Irbid , Jordan. He has published more than 48 original articles in international journals, and attended more than 19 international conferences around the world.

Title: A Finite Element Stress Analysis of a Concical Triangular Connection in dental Implants: A New Proposal

Abstract:

Abstract: Conical implant–abutment connections are popular for their stability; however, in other conditions, such as excessive force, implants and abutments can absorb all the stress. Some connections with three points of support can resist more than conical connections. In recent years, different studies has shown that the design of a connection affects its stability. The aim of this study was to analyze and compare the stresses in finite elements (FEs) in a newly proposed conical triangular connection in implants with hexagonal and conical connections. A nonlinear 3D FE parametric model was developed using SOLIDWORKS 2017®. All the connections, i.e., external and internal hexagons, morse taper, conical connection, and the new conical triangular proposal were compared when axial forces of 150, 250, and 350 N were applied to the occlusal. The maximum stress was found in the external hexagon. The maximum stress was concentrated at the level of the neck of the abutment, implant, and bone, except for the morse taper; at the level of the crown and abutment, the lowest stress occurred in the new proposal. Conclusions: The new conical triangular (CT) connection and the conical connection (CC) generate similar stress in the implant, abutment, and crown. However, the CT connection improves the CC by reducing stress at the bone level, adding an advantage to having three retention points.