• 제목/요약/키워드: Line-Focusing

검색결과 529건 처리시간 0.022초

벌크형 고온 초전도 합성 (Fabrication of Bulk High-Tc Superconductor)

  • 이상헌
    • 한국전기전자재료학회논문지
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    • 제34권5호
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    • pp.333-336
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    • 2021
  • Oxide YBCO bulk superconductors are manufactured using the melt process. Because seed crystal growth method utilizes a slow-spreading layer-by-layer reaction, a long-term heat treatment is required to manufacture a single-crystal specimen of several cm. In this study, the melt process method was applied to compensate for the shortcomings of the seed crystal growth method. The thickness of the upper and lower pellets of the YBCO bulk was molded to 40 mm, and YBCO superconductor was produced by heat treatment. The measurement results of capture magnetism was in line with the literature. This results in a relationship that the higher the growth of Y211 particle in the YBCO, the higher the superconducting properties. We analyzed the YBCO superconductor, focusing on the Y2BaCuO5 particle distribution.

Roles of Virtual Memory T Cells in Diseases

  • Joon Seok;Sung-Dong Cho;Seong Jun Seo;Su-Hyung Park
    • IMMUNE NETWORK
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    • 제23권1호
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    • pp.11.1-11.11
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    • 2023
  • Memory T cells that mediate fast and effective protection against reinfections are usually generated upon recognition on foreign Ags. However, a "memory-like" T-cell population, termed virtual memory T (TVM) cells that acquire a memory phenotype in the absence of foreign Ag, has been reported. Although, like innate cells, TVM cells reportedly play a role in first-line defense to bacterial or viral infections, their protective or pathological roles in immune-related diseases are largely unknown. In this review, we discuss the current understanding of TVM cells, focusing on their distinct characteristics, immunological properties, and roles in various immune-related diseases, such as infections and cancers.

보육교직원 보수교육 현황 고찰 및 발전 방안 (Improving the In-Service Education for Teachers and Directors of Childcare Centers)

  • 이미정
    • 한국보육학회지
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    • 제19권3호
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    • pp.57-69
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    • 2019
  • 본 연구는 보육교직원의 전문성을 강화하기 위한 보수교육의 현재 실태를 살펴봄으로써 현 보수교육체제의 강점과 문제점을 파악하고 향후 개선 방안을 제시하는데 그 목적이 있다. 특히 보수교육의 한 축을 담당하는 온라인 특별직무교육을 포함하여 보육교직원 보수교육의 현재 실태를 살펴보고 그 문제점과 개선방안을 제시해 보고자 한다. 이를 위하여 보육교직원 보수교육에 관한 선행연구를 중심으로 쟁점 분석을 실시하였고 보수교육 관련 법령 및 정책을 중심으로 문헌고찰을 실시하였다. 연구결과, 보육교직원 보수교육의 쟁점은 교육과정의 다양화 및 전문성, 교육방법의 다양화, 자격관리, 교육지원 등으로 범주화되었고, 이는 다시 14개의 핵심과제로 정리되었다. 그동안의 선행연구에서는 거의 다루지 않았지만 최근에 두드러진 현상으로, 보수교육 현장의 온라인 특별직무교육 참여 증가 현상을 분석하고 문제점을 제시하였다. 본 연구결과를 토대로 '보수교육' 용어의 변경, 직무교육의 다양화 인정, 직무교육의 학점은행제, 집합교육과정과 동일한 온라인 직무교육(기본과정/심화과정) 제공, 승급교육의 교육지원 확대, 보수교육기관 평가 의무제 전환 등의 발전방안을 제언하였다.

광대역 공간 전력 합성을 위한 렌즈 증폭기에 관한 연구 (A Study on the Lens Amplifier for Wideband Spatial Power Combining)

  • 권오선;권세웅;이병무;윤영중
    • 한국전자파학회논문지
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    • 제17권5호
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    • pp.483-489
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    • 2006
  • 본 논문에서는 광대역 공간 전력 합성기에 적합한 새로운 구조의 광대역 렌즈 증폭기를 제안하였다. 제안된 렌즈 증폭기는 안정된 광대역 특성을 얻기 위하여 모든 소자를 평형 구조이면서 광대역 특성을 가지도록 설계하였다. 따라서 렌즈 증폭기의 입력부와 출력부 안테나는 팻 다이폴 안테나, 증폭부는 평형 증폭기, 빔 집중을 위한 지연 선로는 평형 구조의 CPS 선로를 각각 사용하였다. 제작된 $5{\times}5$ 이차원(2 dimensional) 렌즈 증폭기는 6 GHz에서 7.5 dB의 절대 이득, 37.4 dB의 EIPG, 그리고 19.6 %의 이득 대역폭을 얻었다. 기존의 렌즈 증폭기들에 비해 제안된 이차원 렌즈 증폭기는 중심 주파수 6 GHz 대역에서 넓은 3-dB 이득 대역폭을 제공하므로 C-band 무선 통신 시스템의 광대역 전력 합성기로 적합할 것으로 기대된다.

남성 팬티 전면 중앙부의 구조에 대한 연구 - 남성 팬티의 특허 분석을 중심으로 - (A Study on the Structure of the Front Middle Part of Men's Underwear - Focusing on Analysis of Patents for Men's Underwear -)

  • 이정순
    • 한국의상디자인학회지
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    • 제18권3호
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    • pp.71-83
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    • 2016
  • This study attempted to analyze trends of structural changes in the front middle part of men's underwear and get basic data for the development of men's underwear patterns. In terms of a research method, the structure and pattern of the front middle part of men's underwear were analyzed by referring to the design and description of the drawing, focusing on men's underwear which targeted to isolate penis from scrotum among the 'men's underwear' or 'functional men's underwear'-related patents. According to the study, three topics were obtained as follows: a support attached to the inside of the front middle part; inner cloth attached to the inside of the front middle part; change in the structure of the front middle panel. The aspects by the specific topic targeted to isolate penis from scrotum and prevent the scrotum from adhered to a thigh are as follows: 1) When a support is attached to the inside of the front middle part, the following three methods are proposed: Penis isolated from scrotum by a rest which is designed using the band; penis and scrotum rested in the band and in a pocket respectively; protruded rest inside the front middle part of the underwear. 2) When an inner cloth is attached to the inside of the front middle part, the following methods are designed: A pocket-type inner cloth is attached; isolation of penis hole from the scrotum pocket using a rectangular separator; U-shaped pocket designed to rest penis and scrotum is attached. 3) Regarding change in the structure of the front middle panel, the integration of penis and scrotum resting parts can be divided into two cases: Securing a space using wrinkles; keeping it voluminous using the vertical line. In this all-in-one penis and scrotum-holding type, in addition, different front panel patterns were applied.

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국제물품매매에서 손해배상과 관련한 실무상 유의점에 관한 연구 - CISG(1980)와 PICC(2004)를 중심으로 - (A Study on the Precautions in light of practical affairs related to a claim for damages under the International Sale of Goods - Focusing on the CISG(1980) and PICC(2004) -)

  • 황지현;최영주
    • 무역상무연구
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    • 제55권
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    • pp.155-181
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    • 2012
  • This study considered as precautions in light of practical affairs related to a claim for damages focusing on CISG (1980) and PICC (2004). Given summarizing contents of this study, those are as follows. First, when exercising a claim for damages, proving the damages may be difficult and hard. Thus, there is necessity for stating the liquidated damages clause in contract given conclusion of contract. Second, as for the application of interest rate given a claim for interest, CISG is not covered interest rate. PICC is covered interest rate. However, there is possibility that PICC will not be applied as general principles. Thus, to remove this insecurity and uncertainty, there is necessity for stating this in contract by deciding on the detailed standard stipulation after fully discussing about interest payment with the counterpart given sale contract. Third, when a seller delivered non-conformity of the goods for contract, a buyer is desirable to exercise by discreetly judging the exercise method or limitation element on a problem of selecting and exercising remedy favorable to oneself out of a claim for damages and a right to reduce the price. Finally, There was suggestion that the contract parties are desirable to utilize by modifying and supplementing properly this in line with own business-based necessity and situation based on the ICC Model International Sale Contract, and to state CISG and PICC the governing law clause, in preparing contract. This study is expected to possibly become guideline in which the damaged party exercises a claim for damages or aims to cope with the counterpart's exercising a claim for damages.

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대학신입생의 진로·학습 역량 강화 프로그램 콘텐츠 설계 및 개발 방안 연구 - H대학의 사례를 중심으로- (A Study on Design and Development Plan of Program Content for Enhancing the Career·Learning Competency of University Freshmen -Focusing on H university case-)

  • 김경화;김진숙
    • 한국콘텐츠학회논문지
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    • 제17권7호
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    • pp.384-396
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    • 2017
  • 본 연구의 목적은 신입생의 성공적인 대학생활 적응을 돕기 위하여 진로 학습 프로그램 콘텐츠를 설계하고 개발 방안을 제시하는데 있다. 이러한 목적을 달성하기 위하여 첫째, 신입생이 처한 상황과 문제 그리고 신입생 대상 교육 프로그램에 대한 선행연구 검토 및 H대학 신입생을 대상으로 프로그램 요구도 분석을 실시하였다. 둘째, 프로그램 관련 선행연구와 요구도 분석 결과에 기초하여 진로 학습 프로그램 개념모형을 개발하였다. 셋째, 맞춤형 콘텐츠, 정서적 지원, 온오프라인 융합 프로그램 등을 중심축으로 하여 진로 학습 역량강화 프로그램 콘텐츠를 설계하고 개발방안을 제시하였다. 전공별 진로 학습 트랙, 빅 데이터 분석, 액션 플랜 등을 주요 콘텐츠로 제안하였다. 이 연구의 결과는 신입생을 위한 역량기반 맞춤형 진로 학습 프로그램의 개발과 실행의 기초자료로써 활용되어 프로그램의 질적 내실화와 신입생들의 대학적응력 향상에 도움을 줄 것으로 기대된다.

아파트 발코니 확장에 따른 전용공간의 변화에 관한 연구 - 전용면적 85m2형 공동주택을 대상으로 - (A Study on the Change of Exclusive Space for Balcony Expansion in an Apartment - Focused on an Apartment House below 85m2 of Exclusive Area-)

  • 배동식
    • 한국농촌건축학회논문집
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    • 제20권2호
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    • pp.11-18
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    • 2018
  • The purpose of this study is to analyze the structure and use change of the private space according to the balcony expansion and use it as the data of plan design. According to Bay, front length/width ratio and the change of balcony space before and after expansion of space organization of house units were analyzed. Common characteristics of Flat type and Tower type are an increase of the frontage length of house units in an apartment, an increase of the number of front bay, and an increase of integrated LDK focusing on living room. A difference is that Flat type shows high frontage ratio, Bay figure, and spatial arrangement favorable to front openness and lighting. Flat type shows higher area distribution than Tower type in LDK area distribution located in at the plane center. Spatial expandability and visual openness of Flat type are more beneficial than those of Tower type in the planning, and a balcony extension of house units has developed to direction to open more. Tower type creates various block images through a combination of house units focusing on the core. Uses after balcony expansion are area expansion of a balcony-neighboring room, storage space, expansion and function improvement of the variable range, and specialized space different from a neighboring room. In addition, there is no escapable space except for a shelter, so unit plan should be prepared to prevent using it other space of a shelter and to solve moving line of two-way horizontal refuge and vertical refuge.

Shakespeare 희곡작품에 나타난 복식 이미저리 연구 I-"King Lear"를중심으로 (A Study of Clothing Imagery emerging from Shakespeare's Drama I -Focusing on King Lear I)

  • 배수정;김옥진
    • 복식
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    • 제24권
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    • pp.177-192
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    • 1995
  • The purpos대 f this research was to figure out clothing imagery underlying Shakepeare's King Lear and transfer it into actual stage costume. Three steps were taken in order to achieve the purpose . The first step exemined theoretical background of the Shakepeare's imagery. The second step reviewed a wide spectum of stage costume used in the last four centuries. The final step was to design and produced actual stage costume focusing on Lear, while considering clothing imagery drawn from the previous steps. King Lear contained rich clothing imagery which could contrast the relationship between material and spirit. In particular, it shed light on the contrast between Lear's divesting and Edgar's wearing and denoted that wearing and divesting processes were closely related to spiritual and status changes. A review of stage costume used for four centuries was prepared in order to understand how clothing imagery was applied in producing stage costume. It was found that their stage costume was reflecting clothing imagery captured from the analysis of king Lear. On the basis of this review, this research presented Lear's stage costume which applied clothing imagery drawn from King Lear. In producing stage costume , actual stage costume used Elizabethan fashion as its basic color and pattern. It also utilized modern clothing production techniques and ornaments acceptable in these days. As Lear was depicted as a character who underwent spiritual and status changes in the process of divesting , his costume was produced in line with this clothing imagery (i.e., divesting). The long journey of reviewing and analyzing King Lear from a stand point of clothing reassured us, on the one hand, the importance of stage costume. On the other hand, it established the groundwork for developing the methodology of fashion design by applying clothing imagery drawn from literature to design and production of stage costume.

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현대패션에 표현된 개더 장식의 미적 특성 연구 - 2001년 이후 컬렉션을 중심으로 - (A Study on the Aesthetic Characteristics of Gather Decorations in the Contemporary Fashion - Focusing on the Collections after 2001 -)

  • 윤진아
    • 한국의상디자인학회지
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    • 제8권1호
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    • pp.155-168
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    • 2006
  • The purpose of this study focusing on the gather decorations shown in the modern fashion was to review needlework techniques and design features of gather decorations and thereupon, analyze the aesthetic characteristics of gather decorations shown in designers' works to examine the gather decoration trend in today's fashion. First, the decorative features of gather decorations different from the conventional costumes are shirring, lace and trimming combined or shirring repeated. Second, in view of sensualism, the gather decorations seem to play a role of enhancing the exposure as a mode of expression, while the indirect exposure or beach is mixed with the materials to widen the range of gather decoration expressions. Third, in terms of history, the conventional decorative techniques are combined with new techniques and materials to create a fantastic and romantic mood different from the conventional costumes. Fourth, in view of rhythms, the wave line of the rim for gather decorations serves to express some vivid effects; on the human body, its monotonous plane repetition will turn into a new expression or a voluminous physical sense of motion. However, since expressions or meanings of the gather decorations are much diversified, they should not be regarded as simple decoration details. Our modern designers searching for new expression of creases use unique structural forms to explore the possibility of creative gather decorations. In all, since gather decorations seem to be significant as unique details conducive to a structural pragmatism and aesthetics, it is deemed necessary to continue to develop gather decorations.

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