• 비교문화연구
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• 제46권
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• pp.113-142
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• 2017

이 논문은 조선시대 기록문헌인 "한국문집총간", "조선왕조실록", "일성록", "승정원일기"(이상은 한국고전번역원 한국고전종합DB를 활용함) 등을 대상으로 김치 관련 어휘를 확보하여 용례를 검출하고 문화사적으로 분석하는 것을 목표로 한다. 기존의 김치 관련 문헌자료는 일부 요리 전문서에 국한되었으나 본 연구에서는 기존의 국한성을 극복하고 종합적이면서도 체계적인 접근을 시도하였다. 조선시대 고문헌은 주로 한문 고문으로 기록되어 가독성이 떨어지며, 자료 확보 이후에 번역 작업에 많은 시간과 공력이 필요할 것으로 예상된다. 이에 필자는 이 부분에 중점을 두어 연구를 추진하였다. 그 다음으로는 이상의 자료들을 주제별, 문헌 출처별 분류를 진행하여 조선시대 김치문화의 문화원형을 재구성하였다.

• 동양고전연구
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• 제36호
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• pp.105-134
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• 2009

미술계에서는 오래 전부터 고전 중의 "논어'를 필독서로 여겨왔다. 여기에 나오는 '회사후소(繪事後素)'라는 말은 그림을 그리는 화가는 물론이고 그림을 논하는 사람들까지 모르는 이가 없다. 그러나 그 의미를 "그림 그리는 일은 바탕을 갖춘 뒤에 하는 것이다" 또는 "그림 그리는 일은 나중에 흰색으로 완성한다"라고 해석하여 의견이 분분하다. 그림을 그리는 방법은 시간이 흘러도 잘 변하지 않는다. 학자들은 대개 전문적인 회화를 상투적으로 알고 있으며, 회화적인 기법에서의 흰색의 특수성을 잘 이해하지 못한다. 어떤 경우라도 그림을 그리기 전에 바탕처리를 하는 것이 기본이지만, 그림을 완성할 때 흰색으로 마무리하는 것은 일반적이지 않다. 고대의 채색화라도 오늘날의 비단 그림과 다르지 않다. 삶의 바탕이 되는 소양과 예술적 감각을 키워준 '회사후소'는 화가들의 뇌리에 새겨진 매우 유효한 미학사상이 되었다. '회사후소'에 대한 해석은 예논(禮論)의 시대적인 변화와 관련되지만, 본고에서는 순수하게 미술학적 입장에서 고찰하였다.

• 한국표면공학회지
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• 제53권6호
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• pp.330-342
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• 2020

Since the original report on ferroelectricity in Si-doped HfO2 in 2011, fluorite-structured ferroelectrics have attracted increasing interest due to their scalability, established deposition techniques including atomic layer deposition, and compatibility with the complementary-metal-oxide-semiconductor technology. Especially, the emerging fluorite-structured ferroelectrics are considered promising for the next-generation semiconductor devices such as storage class memories, memory-logic hybrid devices, and neuromorphic computing devices. For achieving the practical semiconductor devices, understanding polarization switching kinetics in fluorite-structured ferroelectrics is an urgent task. To understand the polarization switching kinetics and domain dynamics in this emerging ferroelectric materials, various classical models such as Kolmogorov-Avrami-Ishibashi model, nucleation limited switching model, inhomogeneous field mechanism model, and Du-Chen model have been applied to the fluorite-structured ferroelectrics. However, the polarization switching kinetics of fluorite-structured ferroelectrics are reported to be strongly affected by various nonideal factors such as nanoscale polymorphism, strong effect of defects such as oxygen vacancies and residual impurities, and polycrystallinity with a weak texture. Moreover, some important parameters for polarization switching kinetics and domain dynamics including activation field, domain wall velocity, and switching time distribution have been reported quantitatively different from conventional ferroelectrics such as perovskite-structured ferroelectrics. In this focused review, therefore, the polarization switching kinetics of fluorite-structured ferroelectrics are comprehensively reviewed based on the available literature.

• 한국콘텐츠학회논문지
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• 제21권5호
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• pp.824-836
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• 2021

본 연구에서는 『황제내경(黃帝內經)』에 사용된 '심(心)'자(字)의 활용과 그 의미를 살펴보았다. 한자에서 '육(肉)'은 육체를 상징하는 기호이다. 오장을 표현하는 간(肝), 비(脾), 폐(肺), 신(腎)의 글자는 모두 '육(肉)'의 형태를 포함하고 있어서 의미적인 혼동을 일으키지 않는다. 그러나 심장과 마음을 의미하는 한자는 모두 '심(心)'으로 쓰이기 때문에 그 의미를 파악하는 데 어려움이 있다. 또한, 『황제내경(黃帝內經)』의 내용은 질병부터 천문학에 이르기까지 다양한 분야를 총망라하고 있다. 이러한 이유로 『황제내경소문(黃帝內經素問)』에서 사용된 총 286개의 '심(心)'자는 다양한 의미를 내포하고 있다. 본 연구의 결과에 의하면, '심(心)'의 용례는 첫째 인간의 심장, 둘째 인체의 흉부, 셋째 마음을 의미한다. 넷째, 초월적인 개념의 깨달음, 다섯째 심포(心包), 여섯째 논리적인 사고, 일곱째 중심 또는 핵심, 그리고 마지막으로 별자리를 의미한다. 본 연구의 결과는 추후 『황제내경영추(黃帝內經靈樞)』 뿐만 아니라 고전 문헌들에서 '심(心)'의 의미를 파악하는 데 도움이 될 수 있을 것으로 생각된다.

• 한국의류산업학회지
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• 제23권6호
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• pp.709-725
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• 2021

The study focused on the design features of Chanel and Fendi, directed by Carl Lagerfeld, creative director of Chanel and Fendi until his recent death. The range of the study was from the 2017 S/S Collection to the 2019 F/W Collection, which collected a total of 767 fashion photographs, including 483 Chanel, 284 Fendi, with tops, bottoms and dresses at VOGUE (https://www.vogue.com). According to the data analysis criteria organized based on prior research and related literature, it was classified in the order of form, color, material, pattern, decoration, fashion image, item and coordination, and content analysis was conducted based on statistical analysis. Overall, the design characteristics of the Chanel collection, directed by Karl Lagerfeld, were rectangle form, tone in tone coloring, combination of identical materials, geometric patterns, and classical images as the main design characteristics of the Chanel collection. The design characteristics shown in the Fendi collection directed by Karl Lagerfeld were rectangle form, tone in tone coloration, hard material combination, abstract pattern, and total coordination. Comparing the design features of Chanel and Fendi, directed by Karl Lagerfeld, is as follows. Chanel and Fendi's designs show a lot of rectangle form, tone-in-tone colors, hard-materials and combination of the same material.

• International Journal of Computer Science & Network Security
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• 제22권2호
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• pp.272-282
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• 2022

Between 2014 and 2019, the US lost more than 2.1 billion USD to phishing attacks, according to the FBI's Internet Crime Complaint Center, and COVID-19 scam complaints totaled more than 1,200. Phishing attacks reflect these awful effects. Phishing websites (PWs) detection appear in the literature. Previous methods included maintaining a centralized blacklist that is manually updated, but newly created pseudonyms cannot be detected. Several recent studies utilized supervised machine learning (SML) algorithms and schemes to manipulate the PWs detection problem. URL extraction-based algorithms and schemes. These studies demonstrate that some classification algorithms are more effective on different data sets. However, for the phishing site detection problem, no widely known classifier has been developed. This study is aimed at identifying the features and schemes of SML that work best in the face of PWs across all publicly available phishing data sets. The Scikit Learn library has eight widely used classification algorithms configured for assessment on the public phishing datasets. Eight was tested. Later, classification algorithms were used to measure accuracy on three different datasets for statistically significant differences, along with the Welch t-test. Assemblies and neural networks outclass classical algorithms in this study. On three publicly accessible phishing datasets, eight traditional SML algorithms were evaluated, and the results were calculated in terms of classification accuracy and classifier ranking as shown in tables 4 and 8. Eventually, on severely unbalanced datasets, classifiers that obtained higher than 99.0 percent classification accuracy. Finally, the results show that this could also be adapted and outperforms conventional techniques with good precision.

• 대한본초학회지
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• 제29권3호
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• pp.1-10
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• 2014

Objectives : In this study, we investigated Hyangyak in "Single-medicine prescription treatment of domestic herbs" of "Kwangjebikeup" and then conducted further studies focusing on ginseng as it is written in "Single-medicine prescription treatment of domestic herbs". Methods : Through a study of classical literature on Hyangyak and ginseng, information regarding the two was gathered and analyzed, with respect to both time and region. Results : All of the herbs in "Single-medicine prescription treatment of domestic herbs", the 4th volume of "Kwangjebikeup", are domestic herbs. Ginseng was a part of the flora of the Korean Peninsula from long ago and ginseng was cultivated from most of the peninsula. We confirmed cultivation of ginseng in Sungcheon, Pyungan-do and most areas of Hamgyeong-do through geography books such as "Geography Monograph of King Sejong". Because the natural environmental condition of the Korean Peninsula was conducive to growing wild ginseng, it was possible to cultivate ginseng. In the late Chosun period, cultivated ginseng was so prevalent that people would have been able to collect and use ginseng without great difficulty. In "Kwangjebikeup", ginseng shows superior efficacy in terms of first-aid. "Kwangjebikeup" contains practical herbal medicines that were based on obtainable ingredients. Conclusions : The purpose of publication of this book was to make medical knowledge available to general public in an easy-to-understand form. And through added clinical experiences of the author, we know that "Kwangjebikeup" played a role in settlement and spreading of foreign knowledge to civilians.

• Steel and Composite Structures
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• 제42권6호
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• pp.805-826
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• 2022

The free and live load-forced vibration behaviour of porous functionally graded (PFG) higher order nanobeams in the thermal and magnetic fields is investigated comprehensively through this work in the framework of nonlocal strain gradient theory (NLSGT). The porosity effects on the dynamic behaviour of FG nanobeams is investigated using four different porosity distribution models. These models are exploited; uniform, symmetrical, condensed upward, and condensed downward distributions. The material characteristics gradation in the thickness direction is estimated using the power-law. The magnetic field effect is incorporated using Maxwell's equations. The third order shear deformation beam theory is adopted to incorporate the shear deformation effect. The Hamilton principle is adopted to derive the coupled thermomagnetic dynamic equations of motion of the whole system and the associated boundary conditions. Navier method is used to derive the analytical solution of the governing equations. The developed methodology is verified and compared with the available results in the literature and good agreement is observed. Parametric studies are conducted to show effects of porosity parameter; porosity distribution, temperature rise, magnetic field intensity, material gradation index, non-classical parameters, and the applied moving load velocity on the vibration behavior of nanobeams. It has been showed that all the analyzed conditions have significant effects on the dynamic behavior of the nanobeams. Additionally, it has been observed that the negative effects of moving load, porosity and thermal load on the nanobeam dynamics can be reduced by the effect of the force induced from the directed magnetic field or can be kept within certain desired design limits by controlling the intensity of the magnetic field.

• Steel and Composite Structures
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• 제48권3호
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• pp.275-291
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• 2023

This paper has focused on presenting vibration analysis of trapezoidal sandwich plates with 3D-graphene foam reinforced polymer matrix composites (GrF-PMC) core and FG wavy CNT-reinforced face sheets. The porous graphene foam possessing 3D scaffold structures has been introduced into polymers for enhancing the overall stiffness of the composite structure. Also, 3D graphene foams can distribute uniformly or non-uniformly in the plate thickness direction. The effective Young's modulus, mass density and Poisson's ratio are predicted by the rule of mixture. In this study, the classical theory concerning the mechanical efficiency of a matrix embedding finite length fibers has been modified by introducing the tube-to-tube random contact, which explicitly accounts for the progressive reduction of the tubes' effective aspect ratio as the filler content increases. The First-order shear deformation theory of plate is utilized to establish governing partial differential equations and boundary conditions for trapezoidal plate. The governing equations together with related boundary conditions are discretized using a mapping-generalized differential quadrature (GDQ) method in spatial domain. Then natural frequencies of the trapezoidal sandwich plates are obtained using GDQ method. Validity of the current study is evaluated by comparing its numerical results with those available in the literature. It is explicated that 3D-GrF skeleton type and weight fraction, carbon nanotubes (CNTs) waviness and CNT aspect ratio can significantly affect the vibrational behavior of the sandwich structure. The plate's normalized natural frequency decreased and the straight carbon nanotube (w=0) reached the highest frequency by increasing the values of the waviness index (w).

• Steel and Composite Structures
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• 제47권6호
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• pp.693-707
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• 2023

This article investigates the static thermo-mechanical response of anisotropic thick laminated composite plates on Visco-Pasternak foundations under various thermal load conditions (linear, non-linear, and uniform) along the transverse direction (thickness) of the plate, while keeping the mechanical load constant. The governing equations, which represent the thermo-mechanical behavior of the composite plate, are derived from the principle of virtual displacements. Using Navier's type solution, these equations are solved for the composite plate with simply supported condition. The Visco-Pasternak foundation type is included by considering the impact of the damping on the classical foundation model, which is modeled by Winkler's linear modulus and Pasternak's shear modulus. The excellent accuracy of the present solution is confirmed by comparing the results with those available in the literature. The study investigates the impact of geometric ratios, thermal expansion coefficient ratio, damping coefficient and foundation parameters on the thermo-mechanical flexural response of the composite plate. Overall, this article provides insights into the behavior of composite plates on visco-Pasternak foundations and may be useful for designing and analyzing composite structures in practical applications.