Search Results - "Park, Cheol S."

Ideal mixing of paraelectric and ferroelectric nematic phases in liquid crystals of distinct molecular species by Chen, Xi, Zhu, Zhecong, Magrini, Mitchell J., Korblova, Eva, Park, Cheol S., Glaser, Matthew A., Maclennan, Joseph E., Walba, David M., Clark, Noel A.

“…The organic mesogens RM734 and DIO are members of separate molecular families featuring distinct molecular structures. These families are the first ones known…”
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Freely suspended smectic films with in-plane temperature gradients by Stannarius, Ralf, Trittel, Torsten, Klopp, Christoph, Eremin, Alexey, Harth, Kirsten, Clark, Noel A, Park, Cheol S, Maclennan, Joseph E

“…Freely suspended smectic films with in-plane temperature inhomogeneities can exhibit remarkable thermocapillary (Marangoni) effects. The temperature dependence…”
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Chiral Incommensurate Helical Phase in a Smectic of Achiral Bent-Core Mesogens by Green, Adam A S, Tuchband, Michael R, Shao, Renfan, Shen, Yongqiang, Visvanathan, Rayshan, Duncan, Alexandra E, Lehmann, Anne, Tschierske, Carsten, Carlson, Eric D, Guzman, Edward, Kolber, Maria, Walba, David M, Park, Cheol S, Glaser, Matthew A, Maclennan, Joseph E, Clark, Noel A

“…An achiral, bent-core mesogen forms several tilted smectic liquid crystal phases, including a nonpolar, achiral de Vries smectic A which transitions to a…”
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A gas flow meter with linear sensitivity based on freely-suspended nanofilms of smectic liquid crystal by Green, Adam A. S., Dutch, Evan, Qi, Zhiyuan, Briggs, Corrina, Park, Cheol S., Glaser, Matthew A., Maclennan, Joseph E., Clark, Noel A.

“…A technique of mechanical airflow sensing based on coupling to a film of fluid smectic liquid crystals is presented. A gas jet confined to a narrow channel…”
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Realization of hydrodynamic experiments on quasi-2D liquid crystal films in microgravity by Clark, Noel A., Eremin, Alexey, Glaser, Matthew A., Hall, Nancy, Harth, Kirsten, Klopp, Christoph, Maclennan, Joseph E., Park, Cheol S., Stannarius, Ralf, Tin, Padetha, Thurmes, William N., Trittel, Torsten

“…Freely suspended films of smectic liquid crystals are unique examples of quasi two-dimensional fluids. Mechanically stable and with quantized thickness of the…”
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Freely Suspended Nematic and Smectic Films and Free-Standing Smectic Filaments in the Ferroelectric Nematic Realm by Hedlund, Keith G, Martinez, Vikina, Chen, Xi, Park, Cheol S, Maclennan, Joseph E, Glaser, Matthew A, Clark, Noel A

“…We show that stable, freely suspended liquid crystal films can be made from the ferroelectric nematic ($\mathrm{N_F}$) phase and from the recently discovered…”
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Topological defect coarsening in quenched smectic-C films analyzed using artificial neural networks by Chowdhury, Ravin A, Green, Adam A. S, Park, Cheol S, Maclennan, Joseph E, Clark, Noel A

“…Mechanically quenching a thin film of smectic-C liquid crystal results in the formation of a dense array of thousands of topological defects in the director…”
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Time-resolved infrared spectroscopy of molecule/binding site reorientation during ferroelectric liquid crystal electro-optic switching by Jang, WG, Park, CS, Clark, NA

“…Polarized Fourier transform infrared (IR) absorption is used to probe molecular conformation in a ferroelectric liquid crystal during the large-scale…”
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Combined inhibition of IGFR enhances the effects of gefitinib in H1650: a lung cancer cell line with EGFR mutation and primary resistance to EGFR-TK inhibitors by Choi, Yun Jung, Rho, Jin Kyung, Jeon, Byung-suk, Choi, Su Jin, Park, Su Cheol, Lee, Seung Sook, Kim, Hye-Ryoun, Kim, Cheol Hyeon, Lee, Jae Cheol

“…Purpose H1650 non-small cell lung cancer (NSCLC) cells display primary resistance to epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs)…”
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Detection of Islands and Droplets on Smectic Films Using Machine Learning by Hedlund, Eric, Hedlund, Keith, Green, Adam, Chowdhury, Ravin, Park, Cheol S, Maclennan, Joseph E, Clark, Noel A

“…Machine learning techniques have been developed to identify inclusions on the surface of freely suspended smectic liquid crystal films imaged by reflected…”
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Ideal Mixing of Paraelectric and Ferroelectric Nematic Phases in Liquid Crystals of Distinct Molecular Species by Chen, Xi, Zhu, Zhecong, Magrini, Mitchell J, Korblova, Eva, Park, Cheol S, Glaser, Matthew A, Maclennan, Joseph E, Walba, David M, Clark, Noel A

“…Liquid Crystals 49 (11), 1531-1544 (2022) The organic mesogens RM734 and DIO are members of separate molecular families featuring distinct molecular…”
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End-to-End Machine Learning for Experimental Physics: Using Simulated Data to Train a Neural Network for Object Detection in Video Microscopy by Minor, Eric N, Howard, Stian D, Green, Adam A. S, Park, Cheol S, Clark, Noel A

“…We demonstrate a method for training a convolutional neural network with simulated images for usage on real-world experimental data. Modern machine learning…”
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High prevalence of hepatitis B virus infection in patients with B-cell non-Hodgkin's lymphoma in Korea by Park, Su Cheol, Jeong, Sook-Hyang, Kim, Jin, Han, Chul Ju, Kim, You Cheoul, Choi, Kui Sung, Cho, Jang Hyun, Lee, Myoungjin, Jung, Ha Hyun, Ki, Seung Seog, Chang, Yoon Hwan, Lee, Seung Sook, Park, Yeon Hee, Lee, Kee Ho

“…This study assessed the association of hepatitis B virus (HBV) and hepatitis C virus (HCV) infection with non-Hodgkin's lymphoma in a highly HBV-endemic area…”
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Evaluation of hernia repair operation in Child-Turcotte-Pugh class C cirrhosis and refractory ascites by Park, Joo Kyung, Lee, Sang Hyub, Yoon, Won Jae, Lee, Jun Kyu, Park, Su Cheol, Park, Bum Joon, Jung, Yong Jin, Kim, Byeong Gwan, Yoon, Jung-Hwan, Kim, Chung Yong, Ha, Jongwon, Park, Kyu Joo, Kim, Yoon Jun

“…Background and Aim:  Abdominal wall hernia is a common feature of decompensated liver cirrhosis and frequently causes life‐threatening complications or severe…”
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Effect of Focal Muscle Vibration on Calf Muscle Spasticity: a Proof-of-Concept Study by Seo, Han Gil, MD, Oh, Byung-Mo, MD, PhD, Leigh, Ja-Ho, MD, Chun, Changmook, PhD, Park, Cheol, MS, Kim, Choong Hyun, PhD

“…Abstract Background Focal vibration has been studied for its ability to reduce spasticity in patients with upper motor neuron lesions, but adequate stimulation…”
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The usefulness of colonoscopy as a screening test for detecting colorectal polyps by Kim, Dae Han, Lee, Seok Young, Choi, Kui Sung, Lee, Ho Jin, Park, Su Cheol, Kim, Jin, Han, Chul Ju, Kim, You Cheoul

“…Colonic polyps are the most common lesions encountered during screening colonoscopy. The purpose of this study is to evaluate the usefulness of colonoscopy to…”
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Realization of hydrodynamic experiments on quasi-2D liquid crystal films in microgravity by Clark, Noel A, Eremin, Alexey, Glaser, Matthew A, Hall, Nancy, Harth, Kirsten, Klopp, Christoph, Maclennan, Joseph E, Park, Cheol S, Stannarius, Ralf, Tin, Padetha, Thurmes, William N, Trittel, Torsten

“…Freely suspended films of smectic liquid crystals are unique examples of quasi two-dimensional fluids. Mechanically stable and with quantized thickness of the…”
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Structural Changes of Poly(trimethylene terephthalate) Film upon Uniaxial and Biaxial Drawing by Lee, Han Sup, Park, Su Cheol, Kim, Young Ho

“…Structural changes occurring during a stretching process have been studied with the uniaxially and biaxially drawn PTMT films. The stress-induced…”
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Three-dimensional orientation change during thermally induced structural change of oriented poly(trimethylene terephthalate) films using polarized FTIR–ATR spectroscopy by Park, Su Cheol, Liang, Yongri, Lee, Han Sup, Kim, Young Ho

“…The three-dimensional orientation change during thermally induced structural change was monitored in a ‘real-time’ mode with polarized FTIR–ATR spectroscopy…”
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Anti-apoptotic N-cadherin signaling and its prognostic implication in human hepatocellular carcinomas by GWAK, Geum-Youn, YOON, Jung-Hwan, LEE, Hyo-Suk, SU JONG YU, SU CHEOL PARK, JA JUNE JANG, KYOUNG BUN LEE, LEE, Sung-Hee, LEE, Soo-Mi, CHAN SOO SHIN, SUH, Kyung-Suk

“…N-cadherin signaling has recently been implicated in the progression of certain epithelial tumors by promoting invasion and dissemination of cancer cells…”
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