Young Moo Lee
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View article: Ion-selective membranes by UV-induced cleavage of polymer chains
Ion-selective membranes by UV-induced cleavage of polymer chains Open
View article: Flow Ratio and Temperature Effects on River Confluence Mixing: Field-Based Insights
Flow Ratio and Temperature Effects on River Confluence Mixing: Field-Based Insights Open
Understanding mixing behavior at river confluences is essential for effective watershed management in response to increasing environmental issues such as algal blooms and chemical pollution. This study focused on the confluence of the Nakd…
View article: Microporous Polymer Membranes: Molecular Stents Enhanced Solvent‐Accessibility for Organic Solvent Transport
Microporous Polymer Membranes: Molecular Stents Enhanced Solvent‐Accessibility for Organic Solvent Transport Open
Microporous polymer membranes with high solvent permeability are pivotal for upgrading molecular separations in organic solvents, but this remains challenging due to numerous sub‐0.4 nm ultra‐micropores resulting from local tight packing, …
View article: Poly(Aryl-<i>co</i>-Aryl Piperidinium) Copolymers for Anion Exchange Membrane Fuel Cells and Water Electrolyzers
Poly(Aryl-<i>co</i>-Aryl Piperidinium) Copolymers for Anion Exchange Membrane Fuel Cells and Water Electrolyzers Open
Next-generation cost-effective anion exchange membrane (AEM) fuel cells (AEMFCs) and AEM water electrolyzers (AEMWEs) have emerged as promising alternatives to costly proton exchange membrane (PEM) fuel cells and water electrolyzers due to…
View article: Analysis of Mixing Behavior in the Confluence of a Lake According to the Operation of Hydraulic Structures in Upstream Areas of Inflow Rivers
Analysis of Mixing Behavior in the Confluence of a Lake According to the Operation of Hydraulic Structures in Upstream Areas of Inflow Rivers Open
View article: Association of workplace toilet access with urinary tract symptoms and productivity loss among female workers
Association of workplace toilet access with urinary tract symptoms and productivity loss among female workers Open
This study investigated workplace toilet access related to lower urinary tract symptoms (LUTS) among women in the Korean workforce. A cross-sectional survey was conducted to determine demographic characteristics, occupational risk factors,…
View article: Direct electrolysis of liquid anhydrous ammonia for continuous production of high-purity, pressurized hydrogen at ambient temperature
Direct electrolysis of liquid anhydrous ammonia for continuous production of high-purity, pressurized hydrogen at ambient temperature Open
The electrolyzer directly converts liquid anhydrous NH 3 into pressurized, high-purity H 2 (>5.5 bar, >99.99%) at 10 °C with a faradaic efficiency of >98.8%, eliminating the need for additional H 2 purification and separation processes.
View article: Ether‐Free Alkaline Polyelectrolytes for Water Electrolyzers: Recent Advances and Perspectives
Ether‐Free Alkaline Polyelectrolytes for Water Electrolyzers: Recent Advances and Perspectives Open
Anion exchange membrane (AEM) water electrolyzers (AEMWEs) have attracted great interest for their potential as sustainable, environmentally friendly, low‐cost sources of renewable energy. Alkaline polyelectrolytes play a crucial role in A…
View article: Association of Workplace Toilet Access with Urinary Tract Symptoms and Productivity Loss among Female
Association of Workplace Toilet Access with Urinary Tract Symptoms and Productivity Loss among Female Open
Purpose Lower urinary tract symptoms (LUTS) are prevalent among women, affecting not only their physical well-being but also their quality of working life. We investigate workplace toilet access related to LUTS among women in the Korean wo…
View article: Clinical profile of patients with acute traumatic brain injury undergoing cranial surgery in the United States: report from the 18-centre TRACK-TBI cohort study
Clinical profile of patients with acute traumatic brain injury undergoing cranial surgery in the United States: report from the 18-centre TRACK-TBI cohort study Open
National Institute of Neurological Disorders and Stroke; US Department of Defense; Neurosurgery Research and Education Foundation.
View article: Porous Organic Polymers as Ionomers for High‐Performance Alkaline Membrane Water Electrolysis
Porous Organic Polymers as Ionomers for High‐Performance Alkaline Membrane Water Electrolysis Open
Sustainable hydrogen production is focused on anion exchange membrane (AEM) water electrolyzers (AEMWEs), which still require more development to achieve high performance and durability. Here, we propose a novel class of porous organic pol…
View article: Microporous membrane with ionized sub-nanochannels enabling highly selective monovalent and divalent anion separation
Microporous membrane with ionized sub-nanochannels enabling highly selective monovalent and divalent anion separation Open
View article: Challenges with developing and deploying AI models and applications in industrial systems
Challenges with developing and deploying AI models and applications in industrial systems Open
The adoption of artificial intelligence into industrial settings promises notable enhancements in productivity, quality, efficiency, competitiveness, and innovations. However, transitioning AI models from concept to full-scale industrial a…
View article: Thermally Rearranged (TR) Polybenzoxazoles from <i>o</i>-Substituted Precursor Polyimides with Phenyl Pendant Groups: Synthesis, Properties, and Thermal Rearrangement Conditions
Thermally Rearranged (TR) Polybenzoxazoles from <i>o</i>-Substituted Precursor Polyimides with Phenyl Pendant Groups: Synthesis, Properties, and Thermal Rearrangement Conditions Open
A series of polyimides (PIs) was synthesized from 6FDA and two o-OH substituted diamines having bulky pendant phenyl, Ph, and trifluoromethyl, CF3, groups as precursors for thermally rearranged polybenzoxazole, TR-PBO, me…
View article: Artificial Intelligence-based Electrocardiogram prediction for duration of Atrial Fibrillation
Artificial Intelligence-based Electrocardiogram prediction for duration of Atrial Fibrillation Open
Introduction Atrial fibrillation (AF) is the most common sustained arrhythmia and is associated with poor clinical outcomes, including stroke, acute coronary events, and heart failure. Recent studies have shown that early rhythm treatment …
View article: Performance of the IMPACT and CRASH prognostic models for traumatic brain injury in a contemporary multicenter cohort: a TRACK-TBI study
Performance of the IMPACT and CRASH prognostic models for traumatic brain injury in a contemporary multicenter cohort: a TRACK-TBI study Open
OBJECTIVE The International Mission on Prognosis and Analysis of Clinical Trials in Traumatic Brain Injury (IMPACT) and Corticosteroid Randomization After Significant Head Injury (CRASH) prognostic models for mortality and outcome after tr…
View article: High-Performance All-Solid-State Lithium Metal Batteries Enabled by Ionic Covalent Organic Framework Composites
High-Performance All-Solid-State Lithium Metal Batteries Enabled by Ionic Covalent Organic Framework Composites Open
Ionic covalent organic frameworks (iCOFs) are crystalline materials with stable porous structures. They hold great potential for ion transport, particularly as solid-state electrolytes (SSEs) for all-solid-state Lithium metal batteries (AS…
View article: Advanced Patterned Membranes for Efficient Alkaline Membrane Electrolyzers
Advanced Patterned Membranes for Efficient Alkaline Membrane Electrolyzers Open
Rational design of membrane electrode assemblies is crucial to the production of high-performance and durable anion exchange membrane (AEM) water electrolyzers (AEMWEs). Here, we propose a facile method to prepare patterned membranes by ca…
View article: Stabilizing the Catalyst Layer for Durable and High Performance Alkaline Membrane Fuel Cells and Water Electrolyzers
Stabilizing the Catalyst Layer for Durable and High Performance Alkaline Membrane Fuel Cells and Water Electrolyzers Open
Anion exchange membrane (AEM) fuel cells (AEMFCs) and water electrolyzers (AEMWEs) suffer from insufficient performance and durability compared with commercialized energy conversion systems. Great efforts have been devoted to designing hig…
View article: High Free Volume Polyelectrolytes for Anion Exchange Membrane Water Electrolyzers with a Current Density of 13.39 A cm<sup>−2</sup> and a Durability of 1000 h (Adv. Sci. 5/2024)
High Free Volume Polyelectrolytes for Anion Exchange Membrane Water Electrolyzers with a Current Density of 13.39 A cm<sup>−2</sup> and a Durability of 1000 h (Adv. Sci. 5/2024) Open
High Free Volume Polyelectrolyte In article number 2306988, Hyun Woo Kang, Chi Hoon Park, Young Moo Lee, and co‐workers report a series of anion exchange polyelectrolytes (AEPs) with high free volume. The highly‐rigid‐twisted spirobisindan…
View article: High Free Volume Polyelectrolytes for Anion Exchange Membrane Water Electrolyzers with a Current Density of 13.39 A cm<sup>−2</sup> and a Durability of 1000 h
High Free Volume Polyelectrolytes for Anion Exchange Membrane Water Electrolyzers with a Current Density of 13.39 A cm<sup>−2</sup> and a Durability of 1000 h Open
The rational design of the current anion exchange polyelectrolytes (AEPs) is challenging to meet the requirements of both high performance and durability in anion exchange membrane water electrolyzers (AEMWEs). Herein, highly‐rigid‐twisted…
View article: Reinforced poly(dibenzyl-co-terphenyl piperidinium) membranes for highly durable anion-exchange membrane water electrolysis at 2 A cm−2 for 1000 h
Reinforced poly(dibenzyl-co-terphenyl piperidinium) membranes for highly durable anion-exchange membrane water electrolysis at 2 A cm−2 for 1000 h Open
Low-cost anion exchange membrane water electrolysis (AEMWE) is an attractive technology to address global energy shortages and environmental issues. However, AEMWE remains far from industrial application because of its poor performance and…
View article: Shielding effect enables fast ion transfer through nanoporous membrane for highly energy-efficient electrodialysis
Shielding effect enables fast ion transfer through nanoporous membrane for highly energy-efficient electrodialysis Open
A key to sustainable management of saline organic-rich wastewaters is to precisely fractionate organic components and inorganic salts (NaCl) as individual resources. Conventional nanofiltration and electrodialysis processes suffer from mem…
View article: Poly(Ethylene Piperidinium)s for Anion Exchange Membranes
Poly(Ethylene Piperidinium)s for Anion Exchange Membranes Open
The lack of anion exchange membranes (AEMs) that possess both high hydroxide conductivity and stable mechanical and chemical properties poses a major challenge to the development of high-performance fuel cells. Improving one side of the ba…
View article: In-situ preparation of chemically-crosslinked polyvinylpyrrolidone gel polymer electrolyte for lithium ion battery via room-temperature electron beam-induced gelation
In-situ preparation of chemically-crosslinked polyvinylpyrrolidone gel polymer electrolyte for lithium ion battery via room-temperature electron beam-induced gelation Open
In this research, we report an initiator-free and room-temperature 2.5 MeV electron beam (EB)-induced gelation strategy to in-situ create polyvinylpyrrolidone-based gel polymer electrolytes (PVP-GPEs) in a fully-assembled lithium ion batte…
View article: Data-driven control of airborne infection risk and energy use in buildings
Data-driven control of airborne infection risk and energy use in buildings Open
The global devastation of the COVID-19 pandemic has led to calls for a revolution in heating, ventilation, and air conditioning (HVAC) systems to improve indoor air quality (IAQ), due to the dominant role of airborne transmission in diseas…
View article: Analysis of Mixing Patterns of River Confluences through 3D Spatial Interpolation of Sensor Measurement Data
Analysis of Mixing Patterns of River Confluences through 3D Spatial Interpolation of Sensor Measurement Data Open
Aquatic environmental problems, such as algae, turbid water, and poor oxygen content, have become increasingly common. In river analysis, hydrological and water quality characteristics are used for evaluating aquatic ecological health, whi…
View article: Morphological transformation of perfluorinated sulfonic acid ionomer via ionic complex formation at a high entropy state
Morphological transformation of perfluorinated sulfonic acid ionomer via ionic complex formation at a high entropy state Open
Proton exchange membranes (PEMs) act as conductors in PEM fuel cells (PEMFCs) to transport protons from the anode to the cathode in the membrane electrode assembly (MEA). Because protons are transported via the hydrophilic channels of the …
View article: Fluorinated Poly(aryl piperidinium) Membranes for Anion Exchange Membrane Fuel Cells
Fluorinated Poly(aryl piperidinium) Membranes for Anion Exchange Membrane Fuel Cells Open
Anion‐exchange‐membrane fuel cells (AEMFCs) are a cost‐effective alternative to proton‐exchange‐membrane fuel cells (PEMFCs). The development of high‐performance and durable AEMFCs requires highly conductive and robust anion‐exchange membr…
View article: Fabrication of anti-leakage Hyflon AD/Poly(4-methyl-1-pentene) hollow fiber composite membrane for an extra-corporeal membrane oxygenation (ECMO) system
Fabrication of anti-leakage Hyflon AD/Poly(4-methyl-1-pentene) hollow fiber composite membrane for an extra-corporeal membrane oxygenation (ECMO) system Open
Extra-corporeal membrane oxygenation (ECMO) systems can perform the roles of the human heart and lungs to realize extra-corporeal oxygenation of blood. This system mainly depends on the gas-blood exchange membrane, the quality of which imp…