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최종률,이승훈,김규정 대한의용생체공학회 2014 Biomedical Engineering Letters (BMEL) Vol.4 No.3
Developments of super-resolution imaging techniques haveconsiderable interests to detect and image tiny molecularevents under a diffraction limit. Stimulated emission anddepletion (STED) microscopy, photo-activated light microscopy(PALM) and structured illumination microscopy (SIM) arerepresentative successful novel imaging techniques. Recently,surface plasmons (SP) based super resolution imagingtechniques which can achieve super resolution with nodeviation from conventional microscopic schematics havebeen actively investigated. In this paper, we explain theprinciple of SP phenomena which can apply for bioimaging,and introduce localized SP based super resolution imagingtechniques to increase lateral and axial resolution below thediffraction limits. Three different novel techniques based onfield localization are introduced to increase lateral resolution. Also, additional three imaging techniques based on extraordinarytransmission and Förster resonance energy transferare introduced to increase axial resolution. Consequently, weexplore a future direction of SP based imaging researches for3D spatiotemporal super resolution microscopy.
관광객 몰입유형에 따른 자아효능감과 관광경험의 구조적관계 - Experience Sampling Method(ESM)를 적용하여 -
최종률,김철원 한국관광학회 2013 관광학연구 Vol.37 No.1
The purpose of this study is to comprehend the physical circumstance and mental or emotional state of tourists sightseeing experiences by applying Experience Sampling Method (ESM) and establishing the variation and difference of the type of tourists' flow in the same time and place. The aim is to additionally explore the physical and emotional differences in experiences and to make tourists and boost tourist satisfaction. Subjects are 90 tourists sightseeing during a similar and brief time period (a 3 day period) from July 28 to August 10, 2010. Data were collected through ESF and questionnaires at a site location on Jeju island. From this, the findings are as follows. First, through suggesting researching method of identifying tourists' various experience and feelings, it is tried to expand the field of sightseeing research. Second, the researcher discovered state and change of the various flow's form and self-efficacy according to the flow's type and tourism experience and provided information to theorize. Third, the researcher suggested undertone provided in attraction site by comprehending tourists' various and complex tourism experiences.
Implantable Neural Probes for Brain-Machine Interfaces – Current Developments and Future Prospects
최종률,김성민,유래형,김성필,손정우 한국뇌신경과학회 2018 Experimental Neurobiology Vol.27 No.6
A Brain-Machine interface (BMI) allows for direct communication between the brain and machines. Neural probes for recording neural signals are among the essential components of a BMI system. In this report, we review research regarding implantable neural probes and their applications to BMIs. We first discuss conventional neural probes such as the tetrode, Utah array, Michigan probe, and electroencephalography (ECoG), following which we cover advancements in next-generation neural probes. These next-generation probes are associated with improvements in electrical properties, mechanical durability, biocompatibility, and offer a high degree of freedom in practical settings. Specifically, we focus on three key topics: (1) novel implantable neural probes that decrease the level of invasiveness without sacrificing performance, (2) multi-modal neural probes that measure both electrical and optical signals, (3) and neural probes developed using advanced materials. Because safety and precision are critical for practical applications of BMI systems, future studies should aim to enhance these properties when developing next-generation neural probes.
최종률,Sung Suk Oh 대한자기공명의과학회 2021 Investigative Magnetic Resonance Imaging Vol.25 No.4
Due to their high degree of freedom to transfer and acquire light, fiber optics can be used in the presence of strong magnetic fields. Hence, optical sensing and imaging based on fiber optics can be integrated with magnetic resonance imaging (MRI) diagnostic systems to acquire valuable information on biological tissues and organs based on a magnetic field. In this article, we explored the combination of MRI and optical sensing/imaging techniques by classifying them into the following topics: 1) functional near-infrared spectroscopy with functional MRI for brain studies and brain disease diagnoses, 2) integration of fiber-optic molecular imaging and optogenetic stimulation with MRI, and 3) optical therapeutic applications with an MRI guidance system. Through these investigations, we believe that a combination of MRI and optical sensing/imaging techniques can be employed as both research methods for multidisciplinary studies and clinical diagnostic/therapeutic devices.
최종률,Shin Dong-Myeong,송혜린,Lee Donghoon,Kim Kyujung 나노기술연구협의회 2016 Nano Convergence Vol.3 No.30
Metallic nanostructures have recently been demonstrated to improve the performance of optical sensing and imaging techniques due to their remarkable localization capability of electromagnetic fields. Particularly, the zero-dimensional nanostructure, commonly called a nanoparticle, is a promising component for optical measurement systems due to its attractive features, e.g., ease of fabrication, capability of surface modification and relatively high biocompatibility. This review summarizes the work to date on metallic nanoparticles for optical sensing and imaging applications, starting with the theoretical backgrounds of plasmonic effects in nanoparticles and moving through the applications in Raman spectroscopy and fluorescence biosensors. Various efforts for enhancing the sensitivity, selectivity and biocompatibility are summarized, and the future outlooks for this field are discussed. Convergent studies in optical sensing and imaging have been emerging field for the development of medical applications, including clinical diagnosis and therapeutic applications.
IPA를 이용한 메가 스포츠 이벤트 선택속성 연구: 2018 자카르타-팔렘방 아시안게임을 중심으로
최종률,안덕수,송기문 (사)한국관광레저학회 2019 관광레저연구 Vol.31 No.5
This study aims to identify the important and satisfying factors of the choice attributes that tourists of mega sports will have before and after the 2018 Jakarta-Palembang Asian Games. For empirical analysis, 350 Indonesian visitors from the Jakarta-Palembang Asian Games were surveyed at the Asian Games Stadium in Jakarta from Aug. 16th to Aug. 22nd, 2018. The results of an IPA that divides 33 variables of choice into four quadrants according to the mean of importance (4.24) and satisfaction (4.18) are as follows. Of the 24 attributes in the first quadrant, more managers should be put into the competition process and the competition itself to produce sustainable results. The third quadrant is a low improvement attribute, but it should produce high operational performance through intensive investment in providing information on nearby tourist sites, sanitary and proper food prices, convenient souvenir purchase, and ticket reservation system implementation. The fourth quadrant is a nature of over-effort at the venue, and the price of souvenirs and admission fees require higher pricing and the development of various menus.
최종률,서수원,김욱은,강봉근,송태하,백희규,한영길,박정문 한국광학회 2017 Current Optics and Photonics Vol.1 No.5
In this paper, we developed a temperature measurement system based on an infrared temperature imagingmodule for thermal safety verification of a plasma skin treatment device (PSTD). We tested a pilot productof the low-temperature PSTD using the system, and the temperature increase of each plasma torch waswell-monitored in real-time. Additionally, through the approximation of the temperature increase of theplasma torches, a certain limitation of the plasma treatment time on skin was established with theInternational Electrotechnical Commission (IEC) guideline. We determined an appropriate plasma treatmenttime (TSafe < 24 minutes) using the configured temperature measurement system. We believe that thetemperature measurement system has a potential to be employed for testing thermal safety and suitabilityof various medical devices and industrial instruments.