Portland State University, Portland, USA.
A simple and physically meaningful analytical (“mathematical”) predictive model is developed for the evaluation of the sizes of the zones of inelastic deformations, if any, at the ends of a soldered electronics assembly in a packaged IC device. The emphasis is on the IC devices intended for space applications and on the incentive for using column-grid-array (CGA) rather than a ball-grid-array (BGA) technology for lower thermal interfacial stresses. Such devices, when employed outside spacecraft, experience extraordinarily low temperatures, and their solder joint interconnections, when used interchangeably inside and outside the craft, are subjected to significant and variable inelastic strains, possibly leading to low cycle fatigue conditions. Because of that, the useful lifetime of the device might be shorter than required for particular applications. There is an obvious incentive to avoid, if possible, the inelastic deformations in the solder material or, at least, to predict the sizes of the inelastic zones at the peripheral portions of the assembly. The developed model shows how this could be done. Both shearing and peeling interfacial stresses are addressed. The numerical examples are carried out for an IC-package mounted on a ceramic (Al203) substrate using 3%–4%Ag0.51%Cu lead-free solder alloy. In addition, an extreme response of an assembly of the type in question to the random temperature cycling is briefly addressed. It is concluded that several possible and independent ways to avoid or, at least, to minimize the inelastic deformations in the solder material could be employed: the use of high yield stress solder and/or a solder with a low melting temperature and/or a low expansion substrate and/or compliant interfaces, such as, for example, low-modulus-and-compliant CGA design instead of high-modulus-and-stiff BGA, and/or inhomogeneous attachment designs, such as, for example, those, when high-modulus and/or high-soldering-temperature solder is used in the assembly’s major mid-portion, where heat-transfer considerations play the major role, and low-modulus and/or low-melting-temperature solder – at its peripheral portions, where mechanical strength is critical. It is concluded also that because, based on the calculated data, the peeling stresses are typically considerably lower than the shearing ones and are proportional to the shearing stresses, only the latter could be considered and possibly minimized. As to the random loading, whose effect was assessed by considering the extreme elastic shearing stress in an assembly with an extraordinarily high yield stress (so that inelastic deformations in it are impossible), it has been concluded that a probabilistic-design-for-reliability of the solder joint interconnections in IC packages intended for space application should be considered in addition to the deterministic approach taken in this paper, but this analysis is beyond the scope of the present study and will be done as future work. Finally, it is concluded that the analytical ("mathematical") modeling should always be considered, in addition to computer simulations, in every important physical design related undertaking, such as the one addressed in this analysis: these two major modeling tools are based on different assumptions and employ different calculation techniques, and if the calculated data obtained using these tools are in agreement, then there is a good reason to believe that these data are accurate and trustworthy.
Ephraim Suhir is on the faculty of the Portland State University, Portland, OR, USA and is also CEO of a Small Business Innovative Research (SBIR) ERS Co. in Los Altos, CA, USA. He is Foreign Full Member (Academician) of the National Academy of Engineering, Ukraine (he was born in that country); Life Fellow of the Institute of Electrical and Electronics Engineers (IEEE), the American Society of Mechanical Engineers (ASME), the Society of Optical Engineers (SPIE), and the International Microelectronics and Packaging Society (IMAPS); Fellow of the American Physical Society (APS), the Institute of Physics (IoP), UK, and the Society of Plastics Engineers (SPE); and Associate Fellow of the American Institute of Aeronautics and Astronautics (AIAA). Ephraim has authored about 500 publications (patents, technical papers, book chapters, books), presented numerous keynote and invited talks worldwide, and received many professional awards, including 1996 Bell Laboratories Distinguished Member of Technical Staff Award for developing effective methods for predicting the reliability of complex structures used in AT&T and Lucent Technologies products, and 2004 ASME Worcester Read Warner Medal for outstanding contributions to the permanent literature of engineering and laying the foundation of a new discipline “Structural Analysis of Electronic Systems”. Ephraim is the third “Russian American”, after S. Timoshenko and I. Sikorsky, who received this award. His most recent awards are 2019 IEEE Electronic Packaging Society (EPS) Field award for seminal contributions to mechanical reliability engineering and modeling of electronic and photonic packages and systems and 2019 IMAPS Lifetime Achievement award for making exceptional, visible, and sustained impact on the microelectronics packaging industry and technology.
Vice Chancellor, Mahatma Gandhi University, Kerala, India
Green chemistry started for the search of benign methods for the development of nanoparticles from nature and their use in the field of antibacterial, antioxidant, and antitumor applications. Bio wastes are eco-friendly starting materials to produce typical nanoparticles with well-defined chemical composition, size, and morphology. Cellulose, starch, chitin and chitosan are the most abundant biopolymers around the world. Cellulose nanoparticles (fibers, crystals and whiskers) can be extracted from agrowaste resources. Chitin is the second most abundant biopolymer after cellulose, it is a characteristic component of the cell walls of fungi, the exoskeletons of arthropods and nanoparticles of chitin (fibers, whiskers) can be extracted from shrimp and crab shells. Starch nano particles can be extracted from tapioca and potato wastes. These nanoparticles can be converted into smart and functional biomaterials by functionalization through chemical modifications due to presence of large amount of hydroxyl group on the surface. The preparation of these nanoparticles includes both series of chemical as well as mechanical treatments; crushing, grinding, alkali, bleaching and acid treatments. Since large quantities of bio wastes are produced annually, further utilization of cellulose, starch and chitins as functionalized materials is very much desired. The cellulose, starch and chitin nano particles are currently obtained as aqueous suspensions which are used as reinforcing additives for high performance environment-friendly biodegradable polymer materials. These nanocomposites are being used as biomedical composites for drug/gene delivery, nano scaffolds in tissue engineering and cosmetic orthodontics. The reinforcing effect of these nanoparticles results from the formation of a percolating network based on hydrogen bonding forces. The incorporation of these nano particles in several bio-based polymers have been discussed. The role of nano particle dispersion, distribution, interfacial adhesion and orientation on the properties of the ecofriendly bio nanocomposites have been carefully evaluated.
Sabu Thomas is currently the Vice-Chancellor of Mahatma Gandhi University, Kottayam, Kerala, India. He is a Professor at the International and Inter University Centre for Nanoscience and Nanotechnology and Full Professor of Polymer Science and Engineering at the School of Chemical Sciences of Mahatma Gandhi University, Kottayam, Kerala, India. His ground-breaking research has covered the areas of polymer science and engineering, polymer nanocomposites, elastomers, polymer blends, interpenetrating polymer networks, polymer membranes, green composites and nanocomposites, nanomedicine and green nanotechnology. Prof. Thomas has received several national and international awards in recognition for his work, and recently received Honoris Causa (DSc) from the University of South Brittany, Lorient, France, in recognition for his contributions to polymer science and engineering. Prof. Thomas has published over 1400 peer- reviewed research papers, reviews and book chapters. He has co-edited more than 183 books. Currently he is having an H index of 127.
Metallurgical and Materials Engineering, Colorado School of Mines, CO, USA.
Steelmaking slags are industrial by-products generated during the production of steel from iron ore and scrap. Although they have seen wide applications in the construction industry, their volume instability and leaching behavior have resulted in only partial utilization of these materials and thus, a large portion of slags are stockpiled annually. On the bright side, steelmaking slags are composed of alkaline oxides, making them promising materials for CO2 sequestration. In this study, the kinetics and mechanism of supercritical carbonation of steelmaking slag are investigated to develop efficient and sustainable carbonation technology. The effect of operating parameters, namely slag particle size, CO2 pressure, temperature, and water to slag ratio on the carbonation efficiency of slag is determined. The mechanism and kinetics of the carbonation reactions are elucidated with a focus on the diffusion barrier, rate-determining step, and reaction pathway.
Dr. Jihye Kim is an Assistant Professor of the George S. Ansell Department of Metallurgical and Materials Engineering at Colorado School of Mines, CO, USA. Dr. Kim’s research interests lie in the area of extractive metallurgy, carbon capture and sequestration, and waste recycling. Specifically, her main research focuses on 1) the development of metallurgical processes for extraction, separation, and purification of critical materials, 2) the development of mineral carbonation processes for carbon dioxide sequestration using industrial wastes, and 3) the chemical and process modeling of electrolyte systems for sustainable metallurgy. Previously, Dr. Kim was a postdoctoral fellow in the Department of Chemical Engineering and Applied Chemistry at University of Toronto, Canada, where she also received her Ph.D. degree in extractive metallurgy and carbon sequestration in 2021. She received her M.A.Sc. degree in hydrometallurgy and mineral processing from Seoul National University, South Korea in 2016.
Scientific Researcher III, National Institute for Lasers, Magurele, Romania
We report the fabrication by Matrix Assisted Pulsed Laser Evaporation (MAPLE) technique of functionalized metallic implants by covering their surface with apatite-lignin-aloe vera (Ap/Lig/AV) coatings. The use of natural and renewable products (Lignin and Aloe Vera plant extract) for infections prevention is a green alternative for synthetic currently-used antibiotics, since the concerning phenomenon of primary and secondary resistance to conventional drugs became an alarming life-threatening circumstance.
The integrity of the chemical functions and stoichiometry of the unaltered deposited material was demonstrated. When the amount of essential oil is equal to that of organic material, a fine, uniform and relatively homogeneous distribution of the material has been obtained.
All coatings are hydrophilic and revealed enhanced cellular viability when cultured with cancerous Mg 63-cells. The composite structures exhibited significant antimicrobial activity against Gram-positive and Gram-negative (Escherichia coli and Staphylococcus aureus), as well as to Candida albicans fungus. The use of these natural-derived products involves reduced costs and represents an attractive solution for the fabrication of biodegradable thin films with antibacterial, antioxidant and anti-inflammatory potential.
Dr.Anita Ioana Visan (Researcher ID: I-7288-2016; ORCID 0000-0003-0539-4160;BrainMapID: U-1700-039K-2913) is a Scientific Researcher III-rd Degree to Laser-Surface-Plasma Interactions (LSPI) Laboratory, Lasers Department; at National Institute for Lasers, Plasma and Radiation Physics (INFLPR) – Magurele. She has 14 years’ experience and expertise in: • Nano powders synthesis and characterization; • Thin coatings synthesis by: Pulsed Laser Deposition, Matrix Assisted Pulsed Laser Evaporation, Combinatorial-MAPLE of calcium phosphates, biopolymers, flavonoids, antibiotics, antimicrobial peptides, essential oils. • Thin films characterization methods: UV-Vis, FTIR, XRD, SEM, AFM, fluorescence microscopy, electrochemical, wettability, magnetic induction, biodegradation and antimicrobial tests. Her current research interest is related to: • Heat transfer at micro/nano-scale from computation to experiment including, thermophysical properties measurement of nanostructured materials for different applications from thermoelectric to medical ones. She received during these years different honours and awards as:L'Oréal National Scholarship - UNESCO For Women in Science 2020; Category: "Life Sciences”;Best Oral Presentation: A. Visan et al., 5th International Student Conference on Photonics (ISCP’14), September 23-26, 2014, Orastie, Romania.;Best Oral Presentation: A. Visan et al., INERA Workshop, September 4-6, 2014, Varna, Bulgaria and Best Poster Award: A. Visan et al., EMRS 2014 Spring Meeting, Symposium J: Laser interaction with advanced materials: fundamentals and applications, May 26-30, 2014, Lille, France. Dr. Anita Ioana Visan” scientometric indicators could be resumed as: 23 ISI indexed articles (8 as main author), 1 book chapter; receiving until moment a total number of citations: 442 (399 without self-citations), Hirsh index: 13 - according to Web of Science, as well 4 Special Issues as Guest Editor; Project Director of a PN III - Exploratory Research Project (242 575 euro) and key person role in another 9 national research projects and 2 international research grants.
Canada Research Chair, Building Science, Director of the BeTOP center, Ryerson University, Canada
Dr. Berardi is Canada Research Chair in Building Science, Full Professor, and Director of the BeTOP center at Ryerson University in Toronto, Canada. His main research interests are related to the study of innovative solutions and new materials for improving the performance within the built environment. In the first years of his career, Dr. Berardi often worked on natural materials for acoustic applications and on sustainable design through natural materials. Recently, he has been focusing on integrating nanotechnologies into building systems. He has mainly focused on organic PCMs, such as paraffin and bio-PCM, and on granular and monolithic aerogel. Dr. Berardi has an extensive publication record, including 150 peer-reviewed journals, 130 international conference papers, and five books. Notable highlights include 4 articles in Renewable & Sustainable Energy Reviews .
Professor ,UMI & Materials science and manufacturing process, Canada
Welding and additive manufacturing are widely used in industrial metallic fabrication processes. Used based materials or powders are often subjected during processing to metallurgical transformation mainly due to high temperature and rapid cooling. Final mechanical properties depend to processing parameters, those parameters induce different physical, thermal, and microstructure transformation. In the case of 316L, dendrite structure is observed after heat treatment during SLM process. In the case of The AA6061 alloy made by Wire and arc additive manufacturing, it found that additive manufactured part contains iron-rich intermetallic compounds and β-phase.
In this work, experimental sets, characterization results and numerical modelling as well are presented and discussed.
Dr. Abdellah LAAZIZI obtained his Ph.D degree from Nantes University in France (2006). During his Ph.D, He worked on Materials treatment, surface and coatings numerical simulation, and Laser process and heat treatment. Dr. LAAZIZI got his Master's Degree in Physical-chemistry for engineering from University of Metz, France (2002). His Master thesis was on study of Physical and Mechanical properties of BeTe and BeSe by using Ab-Initio numerical method. In 2015, Pr. LAAZIZI was invited as professor in Joining and welding Research Institute (JWRI), Osaka University, Japan. Pr. Laazizi has published many scientifical articles on Materials science and manufacturing process. Especially, in welding, surface treatment, additive manufacturing process, and Thin solid films. and he serves as a reviewer for several journals such as: (optic and Laser, JAMT , ...) and international Conferences. He is Senior at Professor Engineering school at Moulay Ismail University in the field of metallic manufacturing process and Non destructive testings, and lecturer in welding processes, Metallurgy, NDT, and Forming processes (Bending, stamping; punshing extrusion,...). Priore, Mr. LAAZIZI has been working working as lecturer in many Instituts (IUT - Saint-Nazaire; SAIT in Canada).
University Technology Mara, Malaysia
The understanding on possible mechanism involve for the observation of magnetoresistance (MR) behaviour in manganite materials is important for their great potential in the development of spintronic-based devices. The MR effect may have a linked with microstuture modification however such effect is not well understood therefore La0.8Na0.2MnO3/ x wt% Ag2O ( x = 0 wt% , 5 wt%) manganites is prepared by solid state method to investigate the MR behaviour by measuring the temperature dependent of resistivity in the temperature range of 30 K – 300 K under the absence and presence of 0.8 T magnetic field. Scanning electron microscopes (SEM) image showed a formation of more small grains size indicated modification of microstructure due to Ag2O addition. Resistivity vs temperature curve shown both samples exhibit metallic behavior with x = 5wt% Ag2O added sample exhibit larger resistivity in the whole measured temperature region as compared to x = 0 wt% sample. The application of 0.8T magnetic field caused a reduction in resistivity in both samples indicates improvement of spin alignment of charge carriers in presence of magnetic field. Both samples exhibit extrinsic magnetoresistance behaviour indicated by the decreased of MR effect with increase of temperature untill 300 K. with x= 5wt% Ag2O sample exhibit larger MR effect in wide temperature region of 20 K – 240 K. The observed behavior is suggested due to the enhancement of spin polarized tunnelling attributed to the increased of grain boundaries effect. On the other hand, both samples exhibit reduction of MR effect above 240 K which might be due to the dominant effect of scattering on charge carriers thus may reduce the conduction process of charge carrier as well as on the mechanism of MR effect.
Norazila Binti Ibrahim has completed her PhD in Physics ( Magnetic Materials ) from the Faculty of Applied Sciences, University Teknologi MARA, Shah Alam, Malaysia in 2015. She has been working as a Senior Lecturer of Physics, School of Physics and Materials Studies, Universiti Teknologi MARA, Shah Alam, Malaysia, since 2010-present. Her research disciplines are inlcudes Materials Physics, Solid State Phyics and Materials Science. Currently, she actively doing research related to Magnetoresistance, Electroreristance effect and Microwave Absorption Materials in manganite materials and others properties such as optical properties and dielectric behaviour of magnetic materials prepared by solid state method. She has published more than 35 papers in reputed journals, participated more than 15 conferences locally and internationally and has received more than 15 awards reletad to research activities. For the profesional membership, she is one of the member of Malaysia Board of Technologies and on the member of The Malaysian of Solid State Science and Society. At university level she involves with others group of reseach activity such as a Member of Ultrasonic of Novel Metals and Oxide Research Group and Associate member of Microwave Research Institute (MRI).
Applied Chemistry Research Center, Saltillo México.
The flame retardant capacity of some types of high-density polyethylene is limited and in fact one of the main obstacles involved in the use of this type of material is that for electrical applications or applications in which proven performance is required occupy high concentrations of mixtures of elements that promote flame retardancy of the entire matrix of the compound, the common concentrations of retardant elements are above 20w-% or 30w-%, if what is sought is to have LOIs that exceed 17 average to 26 average, being the LOI The LOI values describe a procedure for measuring the minimum concentration of oxygen that will just support flaming combustion in a flowing mixture of oxygen and nitrogen, in the present investigation the doping of zeolite particles with phosphorous compounds was carried out, seeking the dispersion of these elements in the polymeric matrix in such a way that a lower concentration of the dispersed phase could be occupied but with the same retarding effectiveness, the values obtained from LOI go from 17 to 34 with concentrations of 15w-% of the doped inorganic particles
Dr. Rafael Aguirre Flores, Applied Chemistry Research Center, Saltillo México. Head of the Design and Additive Manufacturing area Over the past 25 years, he has contributed as the person in charge of 108 industrial development projects, co-authored 26 national patent records, and 9 patent titles, co-authored 11 refereed scientific articles, 3 book chapters, and 13 invitations as a speaker to international conferences and universities. , adviser of more than 60 bachelor's, master's and doctoral theses.
Research Scientist, the Bone-Muscle Research Center, University of Texas, Arlington, USA
Dr. Kamal Awad is a Research Scientist at the Bone-Muscle Research Center and the Department of Materials Science and Engineering, The University of Texas at Arlington. Dr. Awad holds a PhD in Materials Science and Engineering from UTA in 2021. Heobtained two master’s degrees in Chemistry and Materials Engineering in 2015 and 2017. After his first master’s degree from Egypt, he worked at the National Research Center of Egypt for 3 years. In 2016, he was awarded the Fulbright Scholarship to study Materials Science and Engineering at USA. Dr. Awad’s research focuses on engineering, synthesis, and fabrication of novel biomaterials for tissue regeneration applications, especially in bone and muscle regeneration. Dr. Awad has published over 17 research articles and over 25 published abstract and conference presentations in this area of research.
Foviatech GmbH, Hamburg; Kaiserslautern University of Applied Science, Zweibrücken, Germany
Microscopic structures or devices are made via microfabrication and micro-machining, terms that describe the technologies and processes in the fabrication of miniature structures of micrometer scales and smaller. The size of those structures may range from the width of a human hair down to a single human cell or even smaller. The ability to build devices this small has spurred technological advancements in electronics, computing, semiconductors, green energy technology and several other fields. Today, an increasing number of industries rely on microfabrication and minute machines known as micro-electro-mechanical systems (MEMS) can be found in many applications, including airbag sensors and smart phones.
Most microfabrication techniques are top-down approaches, meaning that they start with a larger component, such as a silicon wafer, and remove from it until the final structure is created. On the other hand Bottom-up microfabricationis a largely experimental field where smaller entities such as atoms or molecules are used to create a larger structure, system or device. Bottom-up techniques are frequently used in applications intended to mimic biological structures, systems or functions, often referred to as biomimetics or biomimicry to which Biomimetic Microfabrication counts. Biomimetism or biomimicry focus on understanding, learning from and emulating the strategies used by living things, with the intention of creating and improving designs and technologies.
This contribution will elucidate how Biomimetic microfabrication is relevant to the future development of microfabrication especially when it comes to ongoing challenges such as miniaturization as well as parallel manufacturing. Self-assembly and bottom-up approaches play a crucial role in this context.
Dr. Per A. Löthman obtained his Ph.D. degree from Twente University , The Netherlands in the field of Macroscopic Magnetic Self-assembly and conducted research in Canada, France and Germany on carbon nanotubes, Graphen and related nanomaterials. His research is interdisciplinary and involve BioNanotechnology including DNA, S-layers, Viruses (archaea, bacteriophages), Biomolecular Architecture. Botany and functional surfaces. Dr. Löthman has published over 60 scientifical articles, several book chapters and serves as a reviewer for several journals such as Journal of Bioanalytical and Analytical Chemistry, Journal of Colloid and Interface Science, Thin Solid Films, Sensors and Actuators, Microsystems Technologies, Biophysical Reviews and Letters, He is Senior Research Scientist at Foviatech GmbH in Hamburg, Germany, a young innovative high-tech company in the field of advanced materials and artificial intelligence, and a lecturer in Nanomedicine, Nanopharmacy and Nanomaterials (Kaiserslautern University) and Mechatronics Systems and Design (Hamburg University), Germany.
University of Electronic Science and Technology of China, China
Selective analyses of pharmaceutical and hazardous materials are one of main important issues in recent years. Many of researchers were suggested different analytical systems to this goal. In between of them, electrochemical sensors showed more advantages due to fast response and portable ability. But selectivity is major problem in fabrication of electrochemical sensors. DNA biosensors were suggested as a powerful analytical tool to electrochemical sensing of pharmaceutical and hazardous materials. This presentation discuss about DNA intercalation between of anticancer drugs at surface of electrochemical sensors and role nanomaterials in this regards.
Hassan Karimi-Maleh works as professor in the School of Resource and Environment, University of Electronics Science and Technology of China (UESTC). He is a highly cited researcher selected by clarivate analytics 2018 (cross-filed), 2019 (Agriculture field) and 2020 (cross-filed) and 2021 (Chemistry and Agriculture, two categories in one year) and Top 1% Scientists in Chemistry and Agriculture simultaneously in ISI Essential Science Indicators from 2014 until now. He has published more than 341 SCI research papers with more than 18782 citations and H-index 84 (according to WOS report) and 21420 citations and h-index 92 (according to google scholar). He works as editorial board of more than 20 international journals such as Applied Nanoscience (associated editor Springer IF 3.674), Alexandria Engineering Journal (associated editor ELSEVIER IF 3.732), Journal of nanostructure in Chemistry (associated editor Springer IF 6.391), Scientific Report (associated editor Nature IF 4.379), InfoMat (Editor Wiley IF 25.405), Journal of food measurement and characterization (Editor and guest editor Springer IF 2.431), Food and chemical toxicology (Guest editor Elsevier IF 6.023), Chemosphere (Managing Guest Editor Elsevier IF 7.086) and etc. He also works as adjunct Professor in University of Johannesburg, South Africa and Quchan University of Technology, Quchan, Iran. He work as leader nanobiosensor group in Ton Duc Thang University, Vietnam 2019-2020. He publishes one book in Springer publisher and also one chapter book in same publisher. Recently, he published one paper in Science journal. He was plenary speaker many conference such as The 8th International Conference on Water Resource and Environment (WRE 2022), 6th Postgraduate Colloquium for Environmental Research 2022, 7th international conference on agricultural and biological science (abs) (2021) and etc. He worked as leader Nano biosensor group on Duc Thang University, Vietnam in 2019-2020.
Department of Mechanical Engineering, ISEL, Portugal
The study of crack propagation through numerical simulation by finite elements is crucial to prevent possible failure cases, which may even lead to human losses. This work has as a starting point that defects intrinsic to the process arise during the manufacture of mechanical components, which are potentiators of crack initiation. This paper presents a methodology for studying crack propagation in a railway component through numerical simulation to predict structural integrity problems. In the numerical simulation were considered the boundary conditions and service loading were for the determination of stress concentration zones and crack propagation. This methodology embedded a 3D pore with real dimensions in the component. This defect was reconstructed in the stress concentration zone with a quarter ellipse crack. The dimensions of this crack were based on a real crack found in a component removed from service. This work demonstrates that the Extended Finite Element Method is relevant in predicting the durability of mechanical components, taking into account manufacturing defects and the crack propagation simulation through the following methodology presents results similar to those verified in service.
Teresa Leonor Ribeiro Cardoso Martins Morgado has a PhD in Mechanical Engineering from Instituto Superior Técnico of Lisbon University, Master in Mechanical Engineering option of Materials and Manufacturing Processes by Faculty of Engineering of the Porto University. In addition, Teresa holds Associate Professor Public Examinations in Production Technology and Construction of Mechanical Engineering Department of Polytechnic Institute of Tomar. Currently, consolidate her position as Associate Professor on Mechanical Engineering Department of Lisbon School of Engineering (ISEL), as Integrated Researcher Member on UNIDEMI/ FCTUNL - Research and Development Unit for Mechanical and Industrial Engineering/ Faculty of Science and Technology - Universidade NOVA de Lisboa & Intelligent Systems Associate Laboratory (LASI), and on Navy Research Center (CINAV) /Naval Academy Faculty - Portugal. Teresa Morgado is a member of several editorial boards and is a permanent member of several societies as the Order of Engineers (OE), Materials Portuguese Association (SPM), Portuguese Society for Experimental Analysis of Stress (APAET), European Structural Integrity Society (ESIS) and Ibero-American Federation of Mechanical Engineering (FeIbIm/FelbEm), ATTCEI (Portuguese Association of Knowledge and Technology Transfer).
Yeungnam University, South Korea
Stimulation of cells with electrical cues is aremarkable approach to interact with biological systems and has been explored in clinical practices over a wide range of diseases. This bioelectric interface has been extensively explored via piezoelectric materials, leading to remarkable advancement in the past two decades. Among other members of this fraternity, colloidal perovskite barium titanate (BaTiO3) have gained considerable interest due to their remarkable properties like high dielectric constant, and excellent ferroelectric properties along with acceptable biocompatibility. Significant progression is witnessed for BaTiO3 nanoparticles (BaTiO3 NPs) as a potent candidate for biomedical applications and in wearable bioelectronics making it a promising personal healthcare platform. Up recently, combining the piezoelectric behavior with the fluorescence based theranostic systems have attracted active consideration for biomedical applications due to high sensitivity, versatility and high contrast. A new class of materials platform as fluorescent piezoelectric nanomaterials have surfaced and further effort in this area could open new avenuesfor biomedical applications.
Dr Ankur Sood received his PhD in the field of drug delivery and imaging applications of nanoparticles from GGS Indraprastha University, New Delhi, India. He worked as a Research Associate at the Institute of Nano Science and Technology, Punjab, India. During this tenure he worked on polymer/metal nanocomposites and fluorescent gold clusters for biomedical applications. He worked as Senior Project Scientist at Indian Institute of Technology; Mandi, India where his work was focused on polymer nanoparticles-based drug delivery systems. He was Postdoctoral Research Fellow in Yeungnam University, South Korea till February 2022 and currently he is working as an Assistant Professor (International Faculty Member) in School of Chemical Engineering at the Yeungnam University, South Korea. His current research is focused on 3D bioprinting, tissue engineering, and inorganic/organic nanoparticles for drug delivery and biosensing applications.
fullrmc LLC, United States.
Understanding materials’ atomic structure with a high level of confidence and certainty is often regarded as arduous and sometimes impossible, especially for newer, emerging technology materials exhibiting limited long-range order. Nevertheless, information about atomic structural properties is very valuable for materials science and synthesis. For non-crystalline amorphous and nanoscale materials, using conventional structural determination methods is impossible. Reverse Monte Carlo (RMC) modeling is commonly used to derive models of materials from experimental diffraction data. Here, the latest developments in the fullrmc software package are discussed. Despite its name, fullrmc provides a very flexible modeling framework for solving atomic structures with many methods beyond RMC. The stochastic nature of fullrmc allows it to explore all possible dimensions and degrees of freedom for atomic modeling and create statistical solutions to match measurements. Differing versions of fullrmc are provided as open source or for cloud computing access (fig). The latter includes a modern web-based graphical user interface incorporating advanced computing, structure-building modules, and machine-learning-based components. The main features of fullrmc are presented, including constraint types, boundary conditions, density shape functions, and the two running modes: stochastic using a Monte Carlo algorithm and optimization using a genetic algorithm. Capabilities include tools for statistical, mesoscopic, and nanoscopic approaches, atomic or coarse-grained models, and smart artificial intelligence-ready loss functions.
Dr. Bachir Aoun obtained his Ph.D. from the Institute Laue Langevin (Grenoble-France) and the university of Orléans (France) in the field of physics and neutron sciences. Dr. Aoun has published over 33 peer-reviewed articles and authored multiple scientific computation tools and software. Dr. Aoun is a professional scientific programmer and world expert in materials, atomic simulation, and Artificial Intelligence (AI) solutions and development. He’s the owner of fullrmc LLC and, currently, the Vice President of Data Science and Artificial intelligence at a Fortune 40 company, leading the development of state-of-the-art AI solutions
"Dunarea de Jos" University of Galati, Romania
One of the major problems in the steel industry today is the production of large amounts of waste. The solid wastes coming out of the steel industry are in the form of slag, sludge and dust.
Slag is a by-product from the steel industry that is formed during the melting or production of metal by thermal means. Slags can be furnace slag: granulated slag (GBS) and cooled-raw slag (ABS); steel slag: oxygen-based slag (BOF), electric steel slag (EAF, EAF-S) and secondary slag (SECS); desulfurized slag. The EU's HORIZON 2020 program provides for the support of the ecological economy and one of the priorities of this program is the recovery and recycling of waste from the metallurgical industry (the goal of "zero waste"). Increasing the utilization of slag in different fields of application represents an imperative way for a sustainable development, thus leading to the conservation of natural resources.
The purpose of this study is to explore the opportunity of reusing heapable slag in order to increase the agricultural productivity of wheat crops (Triticum aestivum) and to find the optimal ratio of slag and soil so that the fruits that are going to enter the food chain do not affect the health of the population.
Daniela Laura Buruiana is a passionate environmental engineer and ready for new challenges. She has the ability to manage her time wisely, making every effort to complete her work in a timely yet efficient manner. 2020-present: Head of Department of Materials and Environmental Engineering (DIMM), Faculty of Engineering 2020-present: Head of Interdisciplinary Research Centre in the Field of Eco-Nano Technology and Advance materials CC-ITI, Faculty of Engineering 2014-present: Coordinator of Laborator of Integrated Monitoring of environmental factors 22 published ISI articles, 7 published books, 30 conference entries and 17 awards given at conferences and projects.
Team lead, Ascend Materials Product Development, Pensacola Florida, USA
As consumers, we directly correlate the quietness of a vehicle with its value. Anti-Vibration systems and their components can significantly enhance passenger comfort in today’s modern automotive vehicles. At the same time, optimizing energy efficiency has become an extremely high priority in developing new vehicle platforms. Powering a vehicle requires thousands of parts all working together. They manage a continuous flow of energy as the car accelerates cruises and brakes. When discussing car engines and electric motor efficiency it is measured by how much of the energy is converted into the power that moves the car. Besides optimizing aerodynamics and system energy efficiency, vehicle light-weighting can be a key element in increasing fuel economy and vehicle range. For more than a decade, alternatives to metallic materials have been investigated for this priority. A key consideration to achieve these goals is theuse of thermoplastics. Plastics can be a cost-effective way to not only lightweight, but also improve damping performance. The current trend transitioning away from internal combustion engines (ICE)to hybrid and fullyelectric vehicles is expediting this initiative. By eliminating or downsizing the internal combustion engine (which typically provides background noise) reducing cabin noise has become extremely important. In this paper, wewill discuss:1) why anti-vibration components are becoming of such great importance,2) how they have the capability to improve component, system and vehicle levelNVH performance, 3) how thermoplastics can be used to replace metal and finally 4) how they can provide significant damping improvement.We will also share a novel polyamide material which has been developed to be utilized in structural components focusing on a balance of mechanical and damping performance.
Dr. Brad Sparks leads the Ascend Materials Product Development team located in Pensacola Florida. Recent focus areas have been polymer chain development of polyamides for NVH abatement, long chain polyamides, and green polyamide polymer solutions. He earned a PHD in Polymer Science and Engineering from the University of Southern Mississippi. With 10 years of experience, he holds multiple US patents and previously worked with Haliburton.
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