Chung-Ang University

Chung-Ang University Team Achieves High-Safety Ultra-Fast Charging for Lithium Batteries

Retrieved on: 
Tuesday, February 6, 2024
Lithium, Attention, Kinetics, Lithium hexafluorophosphate, Carbonate, Climate change, Safety, Carbon, EV, Energy Storage Materials, Chung-Ang University, Associate, Health, Engineering, Electrolyte, Electric battery

SEOUL, South Korea, Feb. 6, 2024 /PRNewswire/ -- Lithium-ion (Li-ion) batteries are indispensable for modern devices like electric vehicles, which are playing an increasingly crucial role in people's lives. However, to fully electrify vehicles with Li-ion batteries, the main hurdle is achieving rapid charging without compromising energy density. The convenience and acceptance of electric vehicles by consumers are also influenced by factors such as their range and charging times. Additionally, the utilization of Li plating for ultra-fast charging raises safety concerns due to high cell polarization, requiring careful attention.

Key Points: 
  • However, to fully electrify vehicles with Li-ion batteries, the main hurdle is achieving rapid charging without compromising energy density.
  • The convenience and acceptance of electric vehicles by consumers are also influenced by factors such as their range and charging times.
  • Additionally, the utilization of Li plating for ultra-fast charging raises safety concerns due to high cell polarization, requiring careful attention.
  • Title of original paper: Boosting interfacial kinetics in extremely fast rechargeable Li-ion batteries with linear carbonate-based, LiPF6-concentrated electrolyte

Chung-Ang University Researchers Develop a Low-Cost Catalyst for Green Hydrogen Production

Retrieved on: 
Thursday, January 18, 2024
Engineering, Ru, Advanced Materials, Heat, Electricity, Ruthenium, Hydrogen, Chung-Ang University, Zinc, Water, Journal, Oxide, PEM, Electrolysis, Electron, Ruthenium(IV) oxide, Nature, OER, Iridium

SEOUL, South Korea, Jan. 18, 2024 /PRNewswire/ -- Electrolysis is a process that uses electricity to create hydrogen and oxygen molecules from water. The use of proton exchange membrane (PEM) and renewable energy for water electrolysis is widely regarded as a sustainable method for hydrogen production. However, a challenge in advancing PEM water electrolysis technology is the lack of efficient, low-cost, and stable catalysts for oxygen evolution reaction (OER) in acidic solutions during PEM water electrolysis. While iridium-based catalysts are a potential solution, metallic iridium is rare and expensive in nature. Alternately, oxides of ruthenium (RuO2) offer a more affordable and reactive option, but they also suffer from stability issues. Therefore, researchers are exploring ways to improve the stability of the RuO2 structure to develop promising OER catalysts for the successful implementation of the hydrogen production technology.

Key Points: 
  • The use of proton exchange membrane (PEM) and renewable energy for water electrolysis is widely regarded as a sustainable method for hydrogen production.
  • Therefore, researchers are exploring ways to improve the stability of the RuO2 structure to develop promising OER catalysts for the successful implementation of the hydrogen production technology.
  • The resulting catalyst was more stable, with no apparent fall in reactivity, and significantly outperformed commercial RuO2.
  • This, in turn, could help in reducing costs and enhancing the production of green hydrogen, aiding in a shift toward cleaner energy sources and advancements in sustainable technologies.

Going Beyond Plastic: Chung-Ang University Team Explores Tara Gum as a Green Polymer

Retrieved on: 
Tuesday, January 16, 2024
Seed, Nanoparticle, Research, Toxicology, Food, Polysaccharide, D-3, Behavior, Administration, Plastic, Chung-Ang University, Edible, Zinc, Safety, Chitosan, Food industry, Copper, Carbohydrate Polymers, South Korea, Pollution, Gum arabic

SEOUL, South Korea, Jan. 16, 2024 /PRNewswire/ -- Synthetic, non-biodegradable plastics are major sources of environmental pollution and have prompted a rising interest in sustainable, biodegradable alternatives derived from natural polymers. "Tara gum," derived from the seeds of the tara tree (Caesalpinia spinosa), stands out as a promising solution. This natural, water-soluble substance contains polysaccharides (complex carbohydrates), including the widely used "galactomannan," which is employed in coatings, edible films, and as a stabilizer and thickener. The biocompatibility, biodegradability, and safety of tara gum also make it valuable in industries like food and drug delivery. Moreover, the adaptable nature of the groups within tara gum polysaccharides renders it valuable for tailoring physicochemical and mechanical properties for specific applications.

Key Points: 
  • "Tara gum," derived from the seeds of the tara tree (Caesalpinia spinosa), stands out as a promising solution.
  • The biocompatibility, biodegradability, and safety of tara gum also make it valuable in industries like food and drug delivery.
  • Moreover, the adaptable nature of the groups within tara gum polysaccharides renders it valuable for tailoring physicochemical and mechanical properties for specific applications.
  • "The physicochemical property of tara gum and its products can be enhanced using various kinds of monomers, crosslinkers, or other polysaccharides.

Chung-Ang University Study Highlights Barriers Preventing Bystander Help During Gender-Based Violence

Retrieved on: 
Tuesday, January 16, 2024
Intimate partner violence, Woman, Gender-related violence, University, Research, Associate, Uncertainty, Homicide, Failure, Knowledge, Crime, Behavior, GBV, Risk, Chung-Ang University, Trauma, Violence, & Abuse, Emotion, Latané, Literature, ESS, IPV, Nursing

SEOUL, South Korea, Jan. 16, 2024 /PRNewswire/ -- Gender-based violence (GBV) encompasses acts of violence based on individuals' sex or gender, such as intimate partner violence (IPV), sexual assault, and violence against women.

Key Points: 
  • SEOUL, South Korea, Jan. 16, 2024 /PRNewswire/ -- Gender-based violence (GBV) encompasses acts of violence based on individuals' sex or gender, such as intimate partner violence (IPV), sexual assault, and violence against women.
  • However, despite their potential to act in such situations and play a preventive role, their willingness to act may be hindered by some barriers.
  • In a previous study, Latane and Darley (1970) proposed a situational model of bystander behavior to understand the bystander's engagement to act during situations of GBV.
  • To comprehensively understand the barriers, the team collected data on how the barriers affect bystanders' interventions by reviewing existing literature.

Seoul Metropolitan Government hosts the largest-ever 'Seoul Pavilion' at CES 2024 with 18 innovation awards recipients

Retrieved on: 
Friday, January 12, 2024
Seed, Lighting, CTA, Met, Consumer Technology Association, Kyung Hee University, Multimedia, Konkuk University, Electronics, Seoul Metropolitan Government, Innovation, Yonsei University, ESG, Growth, Hanyang University, Sogang University, Chung-Ang University, Entrepreneurship, Toptable, ICT, CES 2020, COVID-19, CES, Organization, Kookmin University, Korea University

Seoul Metropolitan Government first participated in CES in 2020 with 20 companies and has been operating the to support investment promotion and sales of innovative companies based in Seoul.

Key Points: 
  • Seoul Metropolitan Government first participated in CES in 2020 with 20 companies and has been operating the to support investment promotion and sales of innovative companies based in Seoul.
  • The following COVID-19 pandemic halted face-to-face exchanges after CES 2020, but Seoul startups continued to expand their presence and fame.
  • This year, 2024, Seoul Pavilion featured a record-setting 81 exhibiting startups and 18 Innovation Award Winners.
  • Of the 81 companies participating in the Seoul Pavilion, 18 won the CES 2024 Innovation Awards.

Chung-Ang University Study Looks at Cardiovascular Risks in COVID-19 Survivors

Retrieved on: 
Friday, January 12, 2024
Death, System, Mortality, BMC Medicine, Cardiac arrest, Patient, Research, Database, Pneumonia, Pneumonitis, Incidence, Hospital, Male, Fatigue, Survivor, Long-term care, Vaccination, Risk, Medicine, Chung-Ang University, COVID-19, White, Heart, Acute respiratory distress syndrome, Deep vein thrombosis, Infection, Cardiovascular disease, Pharmaceutical industry

Despite this, previous studies assessing cardiovascular outcomes in post-acute COVID-19 patients were limited by insufficiently adjusting for preexisting cardiovascular conditions among hospitalized individuals.

Key Points: 
  • Despite this, previous studies assessing cardiovascular outcomes in post-acute COVID-19 patients were limited by insufficiently adjusting for preexisting cardiovascular conditions among hospitalized individuals.
  • They aimed to explore the risk of cardiovascular outcomes among individuals who survived acute COVID-19 hospitalization without preexisting cardiovascular conditions.
  • Sensitivity analyses with preexisting cardiovascular disease and subgroup assessments confirmed these trends, emphasizing the impact of COVID-19 on cardiovascular outcomes.
  • While prior Western studies suggested elevated cardiovascular risks post-COVID-19, this research has revealed low risks in Korean patients following acute COVID-19 hospitalizations.

Chung-Ang University Study Reveals a Higher Market Valuation of Cash Holdings of Firms Adopting Electronic Voting

Retrieved on: 
Friday, January 5, 2024
Research, Associate, School, Business administration, Chung-Ang University, Perception, Financial statement analysis, Eugenia, Sejong University, Security (finance)

In the present study, the authors suggest that electronic voting enhances shareholders' perception of corporate governance and increases the market value of a firm's cash holdings.

Key Points: 
  • In the present study, the authors suggest that electronic voting enhances shareholders' perception of corporate governance and increases the market value of a firm's cash holdings.
  • "Electronic voting can contribute to effective corporate governance by easing shareholders' monitoring and engagement in corporate decisions, which improves the firm's investment decisions, resulting in increased market valuation of a firm's cash holdings," explains Dr. Ha.
  • Using a sample of 12,207 Korean firm-years from 2015 to 2021, the authors examined how the market valuation of cash holdings differs for firms that adopt electronic voting in shareholder meetings.
  • The authors found that firms that adopt electronic voting have a greater market value of cash holdings compared to those that did not.

Chung-Ang University Scientist Develops New Antiferromagnetic Superconducting Spin Valves

Retrieved on: 
Friday, November 24, 2023
Electron, Assistant, Logic, Behavior, Physics, Chung-Ang University, Electronics, Nature Nanotechnology, Field line, Dave's Picks Volume 18, Nanotechnology, SQUID, Medical imaging, Squid

In response to these challenges, researchers have engineered spin-triplet superconducting valves capable of switching superconducting currents on and off as per the need.

Key Points: 
  • In response to these challenges, researchers have engineered spin-triplet superconducting valves capable of switching superconducting currents on and off as per the need.
  • To make the fabrication of spin-triplet superconducting valves easier, a team of researchers led by Assistant Professor Kun-Rok Jeon from the Department of Physics at Chung-Ang University, Korea, has now developed an antiferromagnetic analogue of the spin-triplet supercurrent spin valves.
  • The functionality of the SQUID demonstrates the potential of antiferromagnetic spin valves in the realm of superconducting spintronics.
  • Title of original paper: Chiral antiferromagnetic Josephson junctions as spin-triplet supercurrent spin valves and d.c. SQUIDs

Understanding Survival Factors in Critically Ill Patients on Extracorporeal Membrane Oxygenation

Retrieved on: 
Friday, November 17, 2023
Hospice and palliative medicine, Extracorporeal membrane oxygenation, ECMO, Intensive care unit, Prevalence, Chung-Ang University, Ageing, Risk, ICU, Mortality, Patient, Intensive care medicine, Heart, COVID-19, MAP, Critical care nursing, Survival, Death, Survivor, Professor, Intensive word form, Collaboration, Medical device, Nursing, Pharmaceutical industry

SEOUL, Nov. 17, 2023 /PRNewswire/ -- Extracorporeal membrane oxygenation (ECMO), a widely used life support modality, is associated with a high in-hospital mortality rate. Now, researchers from Chung-Ang University, Korea have assessed the prevalence of ECMO-associated deaths and identified the related risk factors. These findings aim to enhance the management of patients requiring ECMO.

Key Points: 
  • SEOUL, Nov. 17, 2023 /PRNewswire/ -- Extracorporeal membrane oxygenation (ECMO), a widely used life support modality, is associated with a high in-hospital mortality rate.
  • Extracorporeal membrane oxygenation (ECMO) is a vital life support procedure that provides cardiac and respiratory support to critically ill patients.
  • Identifying risk factors for in-hospital mortality and developing standardized nursing practice guidelines for ECMO management may improve survival rates.
  • Title of original paper: Factors associated with 30-day in-hospital mortality in critically ill adult patients receiving extracorporeal membrane oxygenation: A retrospective cohort study

Chung-Ang University Researchers Use Carbon Capture and Utilization Technology to Recycle Industrial Carbon Dioxide

Retrieved on: 
Friday, September 15, 2023
Climate, Magnesium oxide, Hydrogen, Hydrogenation, Chung-Ang University, European Green Deal, Research, Temperature, Carbon, Associate, Calcium, Natural Resources, CCU, Chemical substance, Climate change, European, Chemical engineering, CO2, Cement

For instance, the European Union has recommended a comprehensive set of guidelines to achieve climate neutrality by 2050.

Key Points: 
  • For instance, the European Union has recommended a comprehensive set of guidelines to achieve climate neutrality by 2050.
  • The capture of emitted carbon dioxide (CO2) and its chemical conversion into useful commercial products is one way to limit global warming and mitigate its effects.
  • Scientists are now looking into carbon capture and utilization (CCU) technology as a promising approach to expanding CO2 storage and conversion at a low cost.
  • Moreover, the researchers estimated that this process could reduce global warming potential by 20% when compared to traditional calcium formate production methods.