• 비교문화연구
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• 제50권
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• pp.347-370
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• 2018

이 논문은 비교문학방법론의 쇄신과 재개념화의 방향을 제안한다. 비교문학은 서구중심주의와 식민주의의 흔적을 여전히 간직하고 있고 보편-특수라는 서구 근대학문의 인식론에 갇혀있으며 비교문학연구 방법론은 이러한 한계를 계속 유지하고 강화하는 수단으로 작동하고 있다. 비교문학은 기존의 등가 등치 관계에서 벗어나 디목의 "약한 이론," "긴 네트워크," 푸코의 "작가의 소멸" 등의 개념이 제시하는 방향, 즉 서구학문의 보편성 과학성의 한계를 드러내고 문학 담론의 역사성과 사회적 관계를 보여주는 방향으로 이동해야 하며 이를 위해 연구방법론의 변화가 담보되어야 한다. 인류학자 클리포드 기어츠의 "켜켜이 쌓인 묘사"라는 개념은 비교문학연구방법론을 재개념화하기 위한 유용한 출발점이다. 이 개념은 문화를 텍스트에 대한 해석들이 쌓아올리는 두께로 재정의하고 국민국가의 국가성을 다언어적 혼돈 위에 재설립하며 인문학의 과학성을 픽션화한다. 또한 근대학문의 체계화와 분류화, 추상화를 최대한 피하면서 과학성 합리성 보편성이라는 이름으로 행해지는 서구내셔널리즘을 문제화하고, 인간 삶과 그 의미의 풍부함을 충실히 드러내면서 문학담론을 더 '약하'고 더 '길'며 더 '두꺼운' 네트워크로 재개념화할 수 있도록 해준다.

• Journal of the Optical Society of Korea
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• 제19권2호
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• pp.144-148
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• 2015

An alternative description for the Gaussian image plane (GIP) of an optical system for a given object is presented, which applies to both aberration-free and non-aberration-free systems. We extend the definition of transverse magnification (TM) to the image plane (IP) displaced from the GIP and find that the TM depends linearly on the locations of both an aperture stop placed in front of the system and the IP. Hence, we redefine the GIP as the location at which the slope of the TM variance changes sign. The definition is deterministic and self-consistent and, therefore, no other parameters or measurements are needed. The derivation of this definition using a set of paraxial ray tracings and supporting experimental data for a thick bi-convex lens system is presented.

• Animal Systematics, Evolution and Diversity
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• 제36권3호
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• pp.212-215
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• 2020

Two geometrid species, Mixochlora argentifusa (Walker, 1861) and Scopula tsushimana Kaneko, 2018, were newly recorded from Korea. Mixochlora argentifusa, a species of Geometrinae, is characterized by dark greenish, inverse triangular central fascia with a large lunular discal dot and a thick subterminal line of the falcate forewing and band-shaped medial and subterminal lines of the hindwing. Scopula tsushimana, a species of Sterrhinae, is characterized by dark blackish, slanted, dentate ante- and postmedial, and subterminal lines with a black, minute discal dot of the forewing and a relatively thick, blackish antemedial line and strongly undulating postmedial and subterminal lines of the hindwing. We provide diagnosis, description of adults and immatures, if available, and illustrations of the adults, and male and female genitalia.

• Steel and Composite Structures
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• 제26권5호
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• pp.533-547
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• 2018

In this paper the time-dependent creep analysis of a thick-walled FG cylinder with finite length subjected to axisymmetric mechanical and thermal loads are presented. First order shear deformation theory (FSDT) is used for description of displacement components. Inner and outer temperatures and outer pressure are considered as thermo-mechanical loadings. Both thermal and mechanical loadings are assumed variable along the axial direction using the sinusoidal distribution. To find temperature distribution, two dimensional heat transfer equation is solved using the required boundary conditions. The energy method and Euler equations are employed to reach final governing equations of the cylinder. After determination of elastic stresses and strains, the creep analysis can be performed based on the Yang method. The results of this research indicate that the boundaries have important effects on the responses of the cylinder. The effect of important parameters of this analysis such as variable loading, non-homogeneous index of functionally graded materials and time of creep is studied on the behaviors of the cylinder.

• Structural Engineering and Mechanics
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• 제55권4호
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• pp.719-742
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• 2015

This paper dealt the free vibration analysis of thick truncated conical composite sandwich shells with transversely flexible cores and simply supported boundary conditions based on a new improved and enhanced higher order sandwich shell theory. Geometries were used in the present work for the consideration of different radii curvatures of the face sheets and the core was unique. The coupled governing partial differential equations were derived by the Hamilton's principle. The in-plane circumferential and axial stresses of the core were considered in the new enhanced model. The first order shear deformation theory was used for the inner and outer composite face sheets and for the core, a polynomial description of the displacement fields was assumed based on the second Frostig's model. The effects of types of boundary conditions, conical angles, length to radius ratio, core to shell thickness ratio and core radius to shell thickness ratio on the free vibration analysis of truncated conical composite sandwich shells were also studied. Numerical results are presented and compared with the latest results found in literature. Also, the results were validated with those derived by ABAQUS FE code.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2005년도 춘계 학술발표회 논문집
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• pp.217-224
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• 2005

A higher order zig-zag shell theory is developed to refine the predictions of the mechanical and thermal behaviors partially coupled. The in-plane displacement fields are constructed by superimposing linear zig-zag field to the smooth globally cubic varying field through the thickness. Smooth parabolic distribution through the thickness is assumed in the out-of-plane displacement in order to consider transverse normal deformation and stress. The layer-dependent degrees of freedom of displacement fields are expressed in terms of reference primary degrees of freedom by applying interface continuity conditions as well as bounding surface conditions of transverse shear stresses. Thus the proposed theory has only seven primary unknowns and they do not depend upon the number of layers. In the description of geometry and deformation of shell surface, all rigorous exact expressions are used. Through the numerical examples of partially coupled analysis, the accuracy and efficiency of the present theory are demonstrated. The present theory is suitable in the predictions of deformation and stresses of thick composite shell under mechanical and thermal loads combined.

• 한국가구학회지
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• 제29권1호
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• pp.24-30
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• 2018

George Nakashima (1905-1990) is a second-generation Japanese American who was one of the pioneers of the American Studio Furniture movement. Known for the use of natural timber shape of furniture design, Nakashima's furniture shows the aesthetic characteristics of Japan, which distinguishes it from the furniture of other American studio designers. But Nakashima has been regarded as simply a studio furniture designer, designing furniture that takes its natural form. Therefore, research is needed from a more diverse point of view, and the process of interpreting the cultural backgrounds of a designer becoming a design may be an important subject of study. Thus, this study attempts to interpret the hierarchy of design cultures belonging to a studio designer and to identify cultural characteristics that are not apparent. Therefore, through a process of studying from visible to invisible levels of cultural hierarchy, the study analyzed the aesthetic characteristics of the Nakashima's furniture, his personal experience of Japanese culture, and philosophical background.

• 환경생물
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• 제33권2호
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• pp.170-176
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• 2015

Oncholaimid nematode, Oncholaimus secundicollis Shimada, Kajihara and Mawatari, 2009, is firstly reported based on a comparative morphological study. The present specimens of O. secundicollis are collected from rocky intertidal seagrass on the eastern coast of Korea. Oncholaimus secundicollis is distinguished from all of its congeners by the following combination of morphological characteristics: buccal cavity large with thick cuticular wall and three teeth, left subventral tooth larger than right subventral or dorsal teeth, and the presence of two remarkable precloacal papillae with nine pairs of cloacal setae and single ventral tail papilla with two pairs of short setae. In this study, we provide taxonomic description and illustration of unrecorded species of the genus Oncholaimus.

• Mycobiology
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• 제30권4호
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• pp.240-243
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• 2002

Embellisia allii causing bulb canker of white garlic(Allium sativum) has been observed on harvested or stored garlic bulbs. Identification of the fungus was determined based on the symptoms and morphological characteristics on in vitro potato dextrose agar(PDA) and malt extract agar(MEA). Colonies were effuse, blackish brown to black, velvety or powdery. Conidia were solitary, almost straight, most commonly ellipsoidal(or subcylindrical) to ovoid, mid to dark brown, smooth, with very dark 1 to 6 transverse(commonly $3{\sim}4$) and occasionally 1 or 2 oblique or longitudinal septa, and $30.4{\times}13.4{\mu}m$(av.). Conidiophores were simple or branched, straight or flexuous, up to 80 ${\mu}m$ long and $5.1{\sim}10.2{\mu}m$ thick. Chlamydospores were developed through enlargement and repeated cellular division of several adjacent hyphal cells to form a complex of thickwalled cells. The conidial measurements of garlic isolates closely matched the previous description of E. allii.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2002년도 학술대회지
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• pp.647-650
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• 2002

A thermoacoustic refrigerator, using a resonant standing acoustic wave, has been built. It employs a loudspeaker to sustain a standing wave in a resonance tube. The stack of plates is 0.075mm-thick plastic sheet(Mylar), spirally wound to make a 40mm-diameter assembly 80mm long. and two heat exchanger are installed. The refrigerant is Helium gas. The description of thermoacoustic refrigerator are presented. The directly measured performance of the resonator. Tc/Th ( temperature ratio ) and $COP/COP_{c}$, (normalized by carnot's COP ) are plotted versus the thermal load Q applied to the cold end, for various speaker power.