Jae-Geun Ha, Ik Soo Chung, Juyoung Kang, Hongyu An, Jung‐Hyuk Koh, Somang Koo, Y. H. Cho, S. Y. Park, M. H. Jung, J. G. Kim,
Abstract Epitaxial L1 0 FePd (001) thin films were successfully manufactured by sputtering deposition method. The structure and magnetic properties of FePd thin films were characterized as a function of Fe compositions. It was found that the order parameter had a maximum for the stoichiometric composition, whereas the magnetic anisotropy had a maximum as the Pd content is increased to slightly above the stoichiometric composition. This indicates that the stoichiometry is directly contributed to the ...
Tópico(s): Magnetic Properties of Alloys
2007 - Wiley | physica status solidi (a)
Ik Soo Kim, Jae Pil Kim, Seung Yeop Kwak, Yoon Soo Ko, Yong Ku Kwon,
Tópico(s): biodegradable polymer synthesis and properties
2006 - Elsevier BV | Polymer
Evolutionary game theory has been widely used to study the evolution of cooperation in social dilemmas where imitation-led strategy updates are typically assumed. However, results of recent behavioral experiments are not compatible with the predictions based on the imitation dynamics, casting doubts on the assumption of the imitation-led updates and calling for alternative mechanisms of strategy updates. An aspiration-led update is often considered as an alternative to the imitation-led one. While ...
Tópico(s): Game Theory and Applications
2018 - American Physical Society | Physical review. E
Ji Eun Park, Hyojae Oh, Jihyun An, Ik‐Soo Shin,
Herein we report a redox-active metal-organic framework (MOF) via post-synthetic cation exchange with tris(2,2′-biprydine) ruthenium(II) complex (Ru(bpy)32+). A porous anionic zinc-adeninate framework (bMOF-100) is spacious enough to easily entrap 2.43 of Ru(bpy)32+ cations within the mesopore. The encapsulation supported the framework structure preventing any distortion from a rapid solvent evaporation under SEM observation. Ru(bpy)32+@bMOF-100 was then immobilized on the surface of glassy carbon ...
Tópico(s): Covalent Organic Framework Applications
2017 - Wiley | Bulletin of the Korean Chemical Society
Ik-Soo Ahn, Bong-Young Kim, Kwang-Bock You, Myung-Jin Bae,
We analyzed the sound of a singing bowl, which is used as a method to restore and maintain the balance of the natural frequency of the human body, and studied the EEG (electroencephalogram) of the listener according to the frequency band of the singing bowl's sounds. The singing bowl's sound has a wide range of frequencies that can restore all of the natural frequencies of the human body, thus helping the body recover or heal. The low frequency band of the singing bowl's sound was the most energy- ...
Tópico(s): Psychology of Moral and Emotional Judgment
2018 - Springer Nature | Studies in computational intelligence
Hyun Jung Kim, So‐Hyun Kim, Bok Yun Kang, Ik‐Soo Lee,
Tópico(s): Powdery Mildew Fungal Diseases
2008 - Springer Nature | Archives of Pharmacal Research
Seong‐Woo Kim, Jae Hui Kim, Mihyun Choi, Sang Joon Lee, Jae Pil Shin, June Gone Kim, Se Woong Kang, Kyu Hyung Park, Dong Heun Nam, Dae Yeong Lee, Young‐Hoon Park, Young-Gun Park, Mirinae Kim, Soon-Il Choi, Min Kim, Junwon Lee, Sang Woong Moon, Hyewon Chung, Young Ho Lee, Min Woo Lee, Jae Pil Shin, Dong Ho Park, Han Sang Park, Yong Koo Kang, In Young Chung, Woong-Sun Yoo, Yong-Wun Cho, Yu Cheol Kim, Kyung Tae Kang, Ji Hye Jang, Seong‐Woo Kim, Kwang-Eon Choi, Mihyun Choi, Ki Tae Nam, Young Ho Kim, So Min Ahn, Sang Joon Lee, Jae Wan Lim, Hee Chan Ku, Su Jin Yoo, Moon Jung Choi, Young Ju Lew, Jae Hui Kim, Joo Yeon Kim, Jae Hyung Hwang, Seung Woo Lee, Kunho Bae, Woo‐Jin Jeong, Yoon Hyung Kwon, Seoung Hyun An, Jeeyun Ahn, Joo Young Shin, Ik Soo Byon, Sung Who Park, Kyu Hyung Park, Se Woong Kang, Don‐Il Ham, Sang Jin Kim, Un Chul Park, Baek‐Lok Oh, June-Gone Kim, Joo Yong Lee, Jun Yeop Lee, Yoon Jeon Kim, Ju Byung Chae, Dong Yoon Kim, Christopher Seungkyu Lee, Kwan Hyuk Cho, Min Seok Kim, Seong Wook Kim, Jung Pil Lee, Hoon Dong Kim, In Hwan Cho, Ji Hun Song, Kihwang Lee, Han Jo Kwon, Seung Min Lee, Min Sagong, Tae Gon Lee, Jung Il Han, Young Suk Chang, Jung Kee Min, Yun Sik Yang, Soo Han Kim, Hee Seung Chin, Yong Sok Ji, Jong Young Lee, Seong Taeck Kim, Min Ho Shin, Jee Taek Kim, Yong Seop Han, Woo Hyuk Lee, Young Joon Jo, Jung‐Yeul Kim, Kyung Tae Kim, Eoi Jong Seo, Sun Taek Lim, Jun Sung Lee, Chang Ryong Kim, Daniel Duck-Jin Hwang, Ha Kyoung Kim, Dae Joong, In Hwan Hong, Bum‐Joo Cho, Yong Un Shin, Heeyoon Cho, Seong Joon Ahn,
Importance Fungal endophthalmitis caused by contaminated medical products is extremely rare; it follows an intractable clinical course with a poor visual prognosis. Objective To report the epidemiologic and clinical features and treatment outcomes of a nationwide fungal endophthalmitis outbreak after cataract surgery as a result of contaminated viscoelastic agents in South Korea. Design, Setting, and Participants This was a retrospective case series analysis of clinical data from multiple institutions ...
Tópico(s): Ocular Diseases and Behçet’s Syndrome
2023 - American Medical Association | JAMA Ophthalmology
Péter Wittek, Shi Chao Gao, Ik Soo Lim, Zhao Li,
Somoclu is a massively parallel tool for training self-organizing maps on large data sets written in C++. It builds on OpenMP for multicore execution, and on MPI for distributing the workload across the nodes in a cluster. It is also able to boost training by using CUDA if graphics processing units are available. A sparse kernel is included, which is useful for high-dimensional but sparse data, such as the vector spaces common in text mining workflows. Python, R and MATLAB interfaces facilitate ...
Tópico(s): Time Series Analysis and Forecasting
2017 - Foundation for Open Access Statistics | Journal of Statistical Software
Trusting others and reciprocating the received trust with trustworthy actions are fundaments of economic and social interactions. The trust game (TG) is widely used for studying trust and trustworthiness and entails a sequential interaction between two players, an investor and a trustee. It requires at least two strategies or options for an investor (e.g. to trust versus not to trust a trustee). According to the evolutionary game theory, the antisocial strategies (e.g. not to trust) evolve such that ...
Tópico(s): Game Theory and Applications
2023 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Evolutionary Computation
Kyeongman Jeon, Ik Soo Jeon, Gee Young Suh, Man Pyo Chung, Won‐Jung Koh, Hojoong Kim, O Jung Kwon, Dai-Hee Han, Myung Jin Chung, Kyung Soo Lee,
This study was conducted to observe effects of two methods of setting positive endexpiratory pressure (PEEP) based on the pressure-volume (PV) curve.After lung injury was induced by oleic acid in six mongrel adult dogs, the inflation PV curve was traced and the lower inflection point (LIP) was measured.The 'PEEPINF' was defined as LIP+2 cmH2O.After recruitment maneuver to move the lung physiology to the deflation limb of PV curve, decremental PEEP was applied.The lowest level of PEEP that did not result ...
Tópico(s): Cardiac Arrest and Resuscitation
2007 - Korean Academy of Medical Sciences | Journal of Korean Medical Science
Ki‐Hyun Kim, Richard J. C. Brown, Eilhann E. Kwon, Ik-Soo Kim, Jong Ryeul Sohn,
The concentrations of total gaseous mercury (TGM) over three decades (1987–2013) were monitored at an urban station at Yan San (YS), Seoul, Korea. The results were examined by considering the prominent patterns in observed concentrations during periods where data were available: [1] period I (P1) = Sep. 1987 to Oct. 1988, [2] period II (P2) = Sep. 1999 to Jul. 2000, [3] period III (P3) = Jan. 2004 to Dec. 2011, and [4] period IV (P4) = Jan. 2012 to Dec. 2013. The data in this study indicate that the concentrations ...
Tópico(s): Toxic Organic Pollutants Impact
2016 - Elsevier BV | Atmospheric Environment
Soo‐Youn Lee, S.-M. Kim, Eunchul Yoon, Changsuk Oh, Ik Soo Chung, D. Park, Kyu Hong Kim,
We successfully fabricated the three-dimensional multibridge channel MOSFET (MBCFET) with the channel length of 240 nm by using epitaxial growth technology and damascene gate process. Its subthreshold swing is 60 mV/dec, a nearly ideal value, resulting from the thin body completely surrounded by the gate. And its current drivability is 4.6 times larger than that of a planar dynamic random access memory (DRAM) MOSFET. This outstanding performance of MBCFET originates from the vertically increased width ...
Tópico(s): Ferroelectric and Negative Capacitance Devices
2004 - Institute of Electrical and Electronics Engineers | IEEE Electron Device Letters
Ik Soo Chung, Woo Seok Sim, Gaab Soo Kim, Sang Hyun Park, Ye Soo Park, Kyung Min Jun, Young Sun Park, Young Jin Lim, Sang Chul Lee, Yong Chul Kim,
This study was designed to evaluate whether the nurses' assessment of postoperative pain can be an alternative to patients' self-reporting. We examined 187 patients receiving postoperative intravenous patient-controlled analgesia. The nurses assessed the patients' pain with three pain indices (therapeutic efficacy, pain intensity, and facial pain expression) 8 hr after operation. The patients recorded their resting and movement pain using 100-mm visual analog scales immediately following the nurses' ...
Tópico(s): Pain Management and Placebo Effect
2001 - Korean Academy of Medical Sciences | Journal of Korean Medical Science
Dong‐Nam Lee, Hye-Jin Seo, Ik‐Soo Shin, Jong‐In Hong,
The rapid, selective, and sensitive determination of cyanide anion ( CN − ) using a simple paper strip is highly attractive because cyanide is acutely lethal to living organisms via all routes of administration, including alcohol consumption and inhaling cigarette smoke. Here, a synthetic probe ( 1 ) was designed for the selective determination of cyanide. The probe displays rapid and large blue spectral change (Δλ abs =148 nm, Δλ em = 165 nm) with respect to target recognition. Probe 1 exhibits a strong push– ...
Tópico(s): Biosensors and Analytical Detection
2016 - Wiley | Bulletin of the Korean Chemical Society
Jong Ho Park, Seung Min Lee, Sung Who Park, Ji Eun Lee, Ik Soo Byon,
Background To determine whether the internal limiting membrane (ILM) insertion technique is as effective as the inverted ILM flap technique for the initial surgical treatment of eyes with large idiopathic macular holes (MHs). Methods This retrospective, non-randomised, comparative clinical study included 41 eyes with large MHs (minimum diameter >500 µm) that were treated using the ILM insertion technique or the inverted ILM flap technique. The hole closure rate, postoperative best corrected visual acuity ( ...
Tópico(s): Glaucoma and retinal disorders
2018 - BMJ | British Journal of Ophthalmology
Ik Soo Kang, Jeong Suk Kim, Y.W. Seo, Jeon Ha Kim,
Tópico(s): Injection Molding Process and Properties
2006 - Springer Science+Business Media | Journal of Mechanical Science and Technology
Ik Soo Choy, Yonggil Sin, Jong-An Park,
In stereo vision, depth information is one of the important parameters to understand the real world. One method for extracting such depth information is based on the geometry of stereo vision using two cameras displaced from each other by a baseline distance. In this paper, we show an improved triangulation method based on stereo vision angles. We setup a stereo vision system which extracts the distance to the object by detecting moving objects using difference image and by obtaining depth information ...
Tópico(s): Optical measurement and interference techniques
1997 - SPIE | Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
When β‐cyclodextrin was adopted as a dye catcher, the degree of dye migration onto adjacent fabrics as well as onto the coated surface was greatly reduced, while other physical properties, such as waterproofness and breathability, remained unaffected. When acetylation of β‐cyclodextrin was carried out, its solubility in an organic solvent, including methyl ethyl ketone and toluene, was greatly improved. Hence, it provided a smoother coated surface and an excellent antimigration effect in a direct‐ ...
Tópico(s): Antimicrobial agents and applications
2013 - Wiley | Coloration Technology
Sung Who Park, KangYeun Pak, BeomSeok Choi, Ik Soo Byon, Ji Eun Lee,
Purpose: Triamcinolone acetonide (TA) is an alternative option for diabetic macular edema thanks to its cost-benefit ratio and unique delivery route. We performed this study to compare vitrectomized with nonvitrectomized eyes treated with subtenon TA injection for diabetic macular edema. Materials and Methods: We retrospectively reviewed the medical records of patients who had undergone subtenon TA injection for diabetic macular edema treatment. The patients were divided into two groups: Vitrectomized ...
Tópico(s): Retinal and Optic Conditions
2017 - Medknow | Indian Journal of Ophthalmology
Young Min Park, Jung Yul Park, Jong Soo Lee, Ji Eun Lee, Ik Soo Byon, Sung Who Park,
To compare the safety and efficacy of 0.025 mg/mL brilliant blue G (BBG) and an intracameral illuminator for visualizing the anterior capsule.University-based tertiary referral center, South Korea.Retrospective cases series.The medical records of patients with vitreous hemorrhage for which they had pars plana vitrectomy and cataract surgery were retrospectively reviewed. The patients were classified into 2 groups. The BBG group comprised patients having capsule staining with BBG. The illuminator ...
Tópico(s): Glaucoma and retinal disorders
2016 - Lippincott Williams & Wilkins | Journal of Cataract & Refractive Surgery
Ik‐Soo Lee, Hong‐Jin Kim, UiJung Youn, Byung Sun Min, Hyun‐Ju Jung, Jae Won Yoo, Seon Rack, KiHwan Bae,
Aralia cordata Thunb.(Araliaceae) is a perennial herb which is distributed in Korea, China and Japan.Tradition ally, the root of A. cordata has been widely used to treat rheumatism, lumbago and lameness in Japan.1 Previous phytochemical investigations on this plant have reported the isolation of several kinds of diterpenes having pimarane and kaurane skeletons.2In our current phytochemical investi gation on the aerial parts of this plant has led to the isolation of a new ent-pimarane diterpene, ...
Tópico(s): Sesquiterpenes and Asteraceae Studies
2008 - Wiley | Bulletin of the Korean Chemical Society
Muhammad Bilal Ahmad, Seung Hak Rhee, Ik Soo Choy, Jong-An Park, Tae‐Sun Choi,
Motion estimation is one of the fundamental problems in digital video processing. One of the most notable approaches of motion estimation is based on the estimation of a measure of the change of image brightness in the frame sequence commonly referred to as optical flow. The classical approaches for finding optical flow have many drawbacks. The numerical methods or least square methods for solving optical flow constrains are susceptible to errors in the cases of occlusion and of noise. Two moving ...
Tópico(s): Image and Video Stabilization
2001 - SPIE | Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
Il-Jung Kim, Soo-Kyung Yang, Seung Hak Rhee, Ik Soo Choy, Jong-An Park,
There are a lot of home network technologies. One of them is IEEE 1394 technology that supports automatic configuration, QoS guaranteed real-time A/V transmission and high bandwidth. In the near future, IEEE 1394 home network will be deployed and IEEE 1394 digital home appliances will be universally available at a reasonable price for customers. Then, one needs an integrated control technology. This kind of control technology is based on IEC 61883-1 FCP and AV/C CTS. This paper issues the IEEE 1394- ...
Tópico(s): Network Time Synchronization Technologies
2001 - SPIE | Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
Kamrul Islam, Rohit Chand, Dawoon Han, Ik‐Soo Shin, Yong‐Sang Kim,
Herein, we report a new electrochemical assay for the endonuclease activity using a graphene monolayer. The approach involves a methylene blue (MB) tagged double-stranded (ds) DNA as an enzyme substrate with a single-stranded (ss) segment at the end for anchoring on graphene through π-π stacking. The nuclease enzyme mediates DNA hydrolysis following the release of dsDNA-MB from the graphene surface, which reduces the electrochemical current signal. The protocol was validated for the HaeIII and EcoRV ...
Tópico(s): Graphene and Nanomaterials Applications
2014 - Institute of Physics | Journal of The Electrochemical Society
Dawoon Han, Rohit Chand, Ik‐Soo Shin, Yong‐Sang Kim,
We demonstrate the electrochemical determination of a secondary metabolite producing gene on an integrated microfluidic chip. The fabricated microchip was assembled with a continuous channel for polymerase chain reaction (PCR) and an electrochemical detector in order to achieve rapid and sensitive determination of the valC gene. valC is a gene responsible for producing antibiotic validamycin A in Streptomyces hygroscopicus. Biotin-conjugated primers amplified the valC gene. After the PCR, a DNA amplicon ...
Tópico(s): Biosensors and Analytical Detection
2013 - Royal Society of Chemistry | Analytical Methods
James Charles, Ludmila I. Kuncheva, B. Wells, Ik Soo Lim,
Classification of organic materials obtained from rock and drill cuttings involves finding multiple objects in the image. This task is usually approached by segmentation. The quality of segmentation is evaluated by matching the whole detected objects to a reference segmentation. We are interested in representing each object by a single reference point called the “centre”. This paper proposes an evaluation measure of image segmentation for such representation. We argue that measures based only on ...
Tópico(s): Image and Object Detection Techniques
2006 - Springer Science+Business Media | Lecture notes in computer science
The objective of this study is to compare shear wave velocities evaluated by laboratory and field tests in the core zone of an existing fill dam, and to verify the applicability of empirical methods by comparing the shear wave velocities evaluated by empirical methods with those evaluated by experimental methods. In this study, boring and sampling were conducted at the Yeongcheon dam in Korea. Laboratory tests on the core samples were carried out and field tests such as borehole surveys and seismic ...
Tópico(s): Geotechnical Engineering and Underground Structures
2017 - Elsevier BV | Soil Dynamics and Earthquake Engineering
Hyo Ki Kim, Hyojae Oh, Hee Jae Woo, Jihyun An, Ik‐Soo Shin,
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Tópico(s): Conducting polymers and applications
2015 - Wiley | Bulletin of the Korean Chemical Society
Huh Ik-Soo, Min‐Seok Kwon, Taesung Park,
Recent advances in genotyping methodologies have allowed genome-wide association studies (GWAS) to accurately identify genetic variants that associate with common or pathological complex traits. Although most GWAS have focused on associations with single genetic variants, joint identification of multiple genetic variants, and how they interact, is essential for understanding the genetic architecture of complex phenotypic traits. Here, we propose an efficient stepwise method based on the Cochran-Mantel- ...
Tópico(s): Statistical Methods in Clinical Trials
2015 - Public Library of Science | PLoS ONE
Woo Sub Shim, Jae Pil Kim, Jung Jin Lee, Joonseok Koh, Ik Soo Kim,
Novel regenerated cellulose material which was prepared from cellulose acetate fiber through the hydrolysis of acetyl groups have been developed by an environmentally friendly process without emitting toxic substances in addition to be at low production cost. They have composite crystalline structure constituted of cellulose II and cellulose IV. Also, they show a lamellar morphology with an increased amorphous region, as compared to conventional regenerated cellulose such as viscose rayon and cupra ...
Tópico(s): Advanced Cellulose Research Studies
2008 - Springer Science+Business Media | Fibers and Polymers