A5019051916- Advanced machining processes and optimization
- Advanced Surface Polishing Techniques
- Advanced Machining and Optimization Techniques
- Manufacturing Process and Optimization
- Laser Material Processing Techniques
- Energy Efficiency and Management
- Drilling and Well Engineering
- Metal and Thin Film Mechanics
- Advanced Measurement and Metrology Techniques
- Industrial Vision Systems and Defect Detection
- Additive Manufacturing and 3D Printing Technologies
- Acne and Rosacea Treatments and Effects
- Additive Manufacturing Materials and Processes
- Diamond and Carbon-based Materials Research
- Metallurgy and Material Forming
- Occupational Health and Safety Research
- Digital Transformation in Industry
- Dermatologic Treatments and Research
- Advancements in Battery Materials
- Diverse Educational Innovations Studies
- Education and Learning Interventions
- Welding Techniques and Residual Stresses
- Metal Forming Simulation Techniques
- Lubricants and Their Additives
- Semiconductor materials and devices
Ajou University
2025
University of Wisconsin–Madison
2015-2024
Madison Area Technical College
2023
Korea Aerospace University
2020
Keio University
2005-2018
Seoul National University Hospital
2014-2017
Lawrence Berkeley National Laboratory
2014-2015
Seoul National University
2014-2015
Seoul National University Bundang Hospital
2014
University of California, Berkeley
1999-2012
Abstract Ultra-precision CNC machine tools play a significant role in the machining of precision dies and molds, optics, consumer electronics, etc., Due to nature ultra-precision machining, subtle change process condition, anomalies, etc. may significantly influence outcome. Hence, continuous monitoring equipment’s operation is required better understand variations associated with machine. The conventional platform requires comprehensive data analysis using multiple sensors, controller...
The objective of this work is to compare the energy consumption associated with creation a small volume steel by wire-based additive-subtractive manufacturing and powder-based manufacturing. Additive growing area research, encompassing many different processes aimed at producing final products. However, additive lack ability achieve dimensional tolerance surface finish required for applications: i.e., post-processing could be required. Combining subtractive in one machine tool enables...
Atrophic acne scar, a persistent sequela from acne, is undesirably troubling to many patients due its cosmetic and psychosocial aspects. Although there have been some reports emphasizing the role of early inflammatory responses in atrophic scarring, evolving perspectives on detailed pathogenic processes are promptly needed. Examining histological, immunological molecular changes lesions susceptible scarring can provide new insights understand pathophysiology scar. We experimentally validated...
The feasibility of using deep learning techniques in industrial cold forging for fault detection was investigated. In this work, vibration data were collected from an setting to detect machine conditions resulting defective products (faults). After collecting several commonly encountered faults, a Convolutional Neural Network classifier detected with 99.02% accuracy and further classified each 92.66% accuracy. A decision tree (DT) model also used attempt classify faults time domain features....
Introduction Postherpetic neuralgia (PHN) is a common complication of herpes zoster (HZ). This study aimed to use large real-world electronic medical records database determine the optimal machine learning model for predicting progression severe PHN and identify associated risk factors. Methods We analyzed 23,326 patients diagnosed with HZ from January 2010 June 2020. was defined as pain persisting ≥90 days post-HZ, based on diagnostic prescription codes. Five algorithms were compared select...
In order to advance understanding of the burr formation process, a series finite element models are introduced. First, model two-dimensional orthogonal cutting is introduced and validated with experimental observations. A detailed thorough examination drilling forming process undertaken. This information then used in construction an analytical and, leads development three-dimensional formation. Using as template, related problems that have not been physically examined can be simulated...
Post-inflammatory erythema is a common result of acne inflammation and cosmetically unacceptable without effective treatment. Fractional microneedling radiofrequency (FMR) has potential for treatment post-inflammatory erythema. The aim this study was to evaluate the efficacy safety A retrospective chart review undertaken 25 patients treated with 2 sessions at 4-week intervals 27 oral antibiotics and/or topical agents. Efficacy assessed through an investigator's global assessment photographs,...
Abstract Background Polycystic ovary syndrome ( PCOS ) is a common endocrinological disorder in women of childbearing‐age. Although has dermatological manifestations, including hirsutism, acne and androgenetic alopecia, little known about the characteristics patients Asia. Objective The goal this study to elucidate metabolic hormonal parameters Korean classified by three ASRM / ESHERE criteria. Methods We investigated 40 untreated who were newly diagnosed Department Obstetrics &...