Mun Sek Kim’s Post

Not long until the big day. We've updated the website with details of some of the highlights you can expect as well as a schedule of timed activities to help you plan your visit. Tickets are now all gone 😔 but add your name to the waitlist in case of cancellations! Mā te wā e te STEM whānau! #STEMForAll #Science #Technology #Engineering #Mathematics

This message is for all those who really and firmly want to improve the environment The title of my research in the field of automotive and transportation is propulsion optimization and emission minimization, and I have recently conducted a research in this direction, during which the automobile propulsion system benefits from two engines. The required power of the second engine is provided by the thermal losses of the first engine. Therefore, if the company or engine factory, research institute or university can support this project. Very good results can be obtained in this field.

It’s been nearly 2 months since I successfully defended my PhD thesis titled “Rubber-road friction characteristics from large and small scale tyre testing” and I have now earned the title of Dr. Megan Pegram. I’ve learned so much during my time at the University of Surrey and am extremely grateful for the guidance and extensive knowledge that I received from my supervisors, Patrick Gruber and Davide Tavernini. My research focused on rubber-surface friction characteristics - how it can be used to improve tyre modelling when integrated into a simple brush model and (most excitingly) how these characteristics can be extracted from standard flat-track data. This work is particularly valuable at high slip conditions, where tyre forces become highly non-linear due to rubber friction characteristics and its temperature dependency. My research developed a method to extract friction characteristics, which form segments of a full friction master curve, from pure longitudinal tyre force measurements obtained through flat-track testing. Rather than a single friction coefficient, this approach captures the dependency of rubber friction on sliding velocity and temperature and, for the region extracted, align well with an experimentally gathered friction master curve. Given the considerable cost of flat-track testing, this method adds value to existing data sets by extracting detailed friction measurements! There is plenty more to say about this research so let’s save it for a journal paper! This work has been submitted for publishing and will be ready for a read in a couple months.

We had an incredible time at the The University of Manchester 3 Minute Thesis Final! A huge congratulations to all the finalists. For those who couldn't be here, here's a peek at what you missed: Fatema Alshaikhmubarak - Preventing Medication Harm: Empowering pharmacists to prevent medication errors and create safer healthcare environments through proactive intervention strategies. 💊 Lana Bojanić - Suicide-related Internet Use: Delving into the challenges of discussing suicide-related internet use in mental health services and strategies for risk mitigation. 🌐 Mehdi Hellou - Theory of Mind for Social Robots: Harnessing Theory of Mind to enhance social robot interactions and personalise technology for human needs and preferences. 🤖 Ross Jenkinson - Quantum Mechanics and Black Holes: Delving into the mysteries of quantum mechanics, black holes, and their implications for particle physics and information theory. 🌌 Gillian Mcarthur - Ruthenium Catalysis: Revolutionising chemistry with a stable ruthenium catalyst, making complex transformations accessible to experts and novices alike. 🔬 Hongning Ren - Bio-Inspired Self-Assembly: Introducing innovative HPC sensors inspired by beetle structure for temperature-sensitive product safety monitoring. 🌡️ Lois Pennington - Airplane Catering Waste: Shedding light on the environmental impact of aeroplane catering waste and exploring sustainable solutions for the airline industry. ✈️ Ananya Singh - Microbial Impact on Cement Properties: Investigating the microbial metabolism's impact on cement properties for radioactive waste disposal in deep geological repositories. ☢️ Megan Taylor - Alzheimer's Disease Treatment: Unveiling a potential breakthrough in Alzheimer's treatment through the selective knockdown of pro-inflammatory microRNAs. 🧠

I am happy this time that I published another valuable work with the help of my friends in a weighty journal (CEJ). For this reason, I am extremely grateful to my dear colleagues Dr. Ashkan Bahadran at Shenzhen Institutes of Advanced Technology, Farzad Hasanvandian at the Sharif University of Technology, and Professor Stefanos Giannakis at Universidad Politécnica de Madrid (Spain) who put a lot of effort into this work. Also, I had the honor of working with Professor Ning Han from KU Leuven, Belgium on this project. In the end, I congratulate all my colleagues. Title: Revitalizing CO2 photoreduction: Fine-tuning electronic synergy in ultrathin g-C3N4 with amorphous (CoFeNiMnCu)S2 high-entropy sulfide nanoparticles for enhanced sustainability Abstract: Sustainability is a key issue in developing stable and efficient catalysts for solar-catalyzed CO2 conversion. The concept of structural stabilization by quenching the Gibbs free energy, which is achieved by increasing the configurational entropy level of the system, introduced high-entropy materials. However, because alloying immiscible multimetallic atoms into a unit system is still an arduous process, the potential of high-entropy materials has not yet been fully exploited. Surprisingly, although metal sulfide photocatalysts have an enviable reputation for CO2 photoreduction (CO2-PR) owing to their optical/electronic merits and more negative redox potential than other materials, the capability of high-entropy metal sulfides has been completely disregarded. Herein, an adaptable, self-templating metal alkoxide appropriately addresses the immiscibility of metallic constituents by the well-blended metal ions with polyalcohol in the metal glycerate. Consequently, (CoFeNiMnCu)S2 high-entropy metal sulfide nanoparticles (HEMS-Nps) were grown in situ on crossed ultrathin g-C3N4 (UCN) monolayers during the sulfidation of the metal glycerate. The as-synthesized HEMS-Np has a crystalline–amorphous structure, which is conducive to the acceleration of charge transfer to/from reaction sites, and a convincing orientation for CO2 adsorption. These features are combined with synergistic electronic multimetallic interactions, facilitating a heterogeneous valence electron distribution and atomic disorder. The CO2-PR power of the (CoFeNiMnCu)S2@UCN nanostructure was noticeable in realizing added-value products in both the liquid–solid (1063 µmol/g h of syngas and 250 µmol/g h of methane) and gas–solid phases (1883 µmol/cm2 h of syngas and 321 µmol/cm2 h of methane). To prove its utility, long-term and corresponding time-equivalent cycling experiments were conducted, demonstrating a highly stable system that endured for a long time. Overall, this approach simultaneously exploits the advantages of sulfide-based materials and high-entropy materials in stable structures to generate sustainable CO2-PR materials. https://lnkd.in/dVtPUePs

I am excited to share that my thesis work, "𝐋𝐢𝐟𝐭-𝐈𝐧𝐝𝐮𝐜𝐞𝐝 𝐖𝐚𝐤𝐞 𝐑𝐞-𝐄𝐧𝐞𝐫𝐠𝐢𝐳𝐚𝐭𝐢𝐨𝐧 𝐟𝐨𝐫 𝐚 𝐕𝐀𝐖𝐓-𝐁𝐚𝐬𝐞𝐝 𝐌𝐮𝐥𝐭𝐢-𝐑𝐨𝐭𝐨𝐫 𝐒𝐲𝐬𝐭𝐞𝐦" has been published in the IOP Publishing Journal of Physics: Conference Series. In addition, the work was presented at the Torque 2024 conference in Florence, Italy, at the end of last May. The work delves into the near-wake dynamics and recovery mechanisms of the VAWT-Based Multi-Rotor System. In addition, the effect of incorporating external high-lift-generating wings, which introduce a strong upwash and tip-vortices into the flow, on the recovery of the near-wake was studied. It was identified that the external wings successfully deflect the slow-moving wake region away from the actuator surface, increasing the wind power available for potential downstream turbines. The study was performed in the Open Jet Facility of the TU Delft | Aerospace Engineering, where Large-Scale Particle Tracking Velocimetry was utilized to gain insight into the near-wake of the MRS. For the ones that are interested, the full paper can be found here: https://lnkd.in/eGzJHaEw Authors: Thomas Broertjes, David Bensason, Andrea Sciacchitano, and Carlos Simao Ferreira

🎓 Exciting Update: Successfully Defended My Master's Thesis on Carbon Quantum Dots! I am thrilled to share that I recently defended my Master's thesis on the fascinating topic of carbon quantum dots called " THEORETICAL ANALYSIS OF THE MAIN VARIABLES IN THE PRODUCTION OF CARBON QUANTUM DOTS VIA HYDROTHERMIC TREATMENT AND THEIR PRACTICAL APPLICATION USING PISTACHIO SHELLS". This subject, which has been the focus of this year's Nobel Prize in Chemistry, has been a passion project of mine for several years. 🏆 I've been exploring the incredible potential of carbon quantum dots, and my research journey has culminated in a successful defense. The discoveries made in this field are not only groundbreaking but also have the potential to revolutionize various industries, from electronics to healthcare. 🔬 My thesis delves deep into the synthesis, properties, and applications of carbon quantum dots, shedding light on their unique properties and their promising role in a sustainable future. I'm immensely grateful for the guidance of my professors and the support of my peers throughout this journey. 🌐 I would like to share my achievement to the following organizations that have been working in the field of nanotechnology: Microanalysis Australia, CSIRO, Applied Materials, Taiwan Semiconductor, ASML. Your contributions to the research and development of nanotechnology been an inspiration to my work. I invite you to explore my profile to learn more about my research and connect for potential. Thank you to everyone who has been part of this incredible journey, and I'm excited to see where this research leads in the future! #CarbonQuantumDots #NobelPrize #MastersThesis #Chemistry

Exciting news to share

Exciting Discussion on Cutting-Edge Research at K. Ramakrishnan College of Technology! We had the tremendous privilege of hosting Dr Santhanam Ranganathan, Senior Scientist at DRDO, for a stimulating discussion on some of the most exciting research happening at K. Ramakrishnan College of Technology. The conversation delved into fascinating areas like: Cryogenic treatment in material science: We explored the innovative applications of cryogenic technology in enhancing material properties and unlocking new possibilities. Robotics for human lifesaving: Dr. Santhanam shared valuable insights into how robotics is revolutionizing rescue efforts and humanitarian aid, saving countless lives. Research article briefing and patent and product development processes: We gained invaluable knowledge on navigating the scientific publication landscape and translating research into tangible products. Santhanam's expertise and guidance proved to be an immense inspiration for both our faculty and student community. This interaction has undoubtedly accelerated our progress in these dynamic fields, propelling us towards groundbreaking discoveries and impactful solutions. We express our deepest gratitude to Dr. Santhanam for generously sharing his time and knowledge. His visit has significantly enriched our academic journey and empowered us to contribute meaningfully to the world. #research #innovation #collaboration #science #technology #engineering #materialscience #robotics #DRDO #grateful

Are you Interested in pursuing a graduate degree (MS or PhD) in Materials Science and Engineering (MSE) at the University of Colorado Boulder? There will be a virtual webinar, “Meet MSE at CU Boulder”, and Information Sessions on October 20th and October 27th at 9 am MST.   Materials science and engineering at CU Boulder is at the forefront of research advancements across fields, including biotechnology and medicine, sustainability, renewable energy, polymers, nanotechnology, electronics and photonics, advanced computing, self-assembly, and more.   In case you have any questions about the program, kindly DM #materialsscience #materialsengineering #graduateschool #phd"