Bi₂Te₃계 열전박막의 열전 출력인자에 미치는 첨가제의 영향

배상현,최순목,Bae, Sang Hyun,Choi, Soon-Mok 한국전기전자재료학회 2020 전기전자재료학회논문지 Vol.33 No.2

Thermoelectric Bi₂Te₃ thin films were synthesized by a co-sputtering method at 300℃. A Fe dopant was considered to enhance the thermoelectric properties of the system. The Seebeck coefficient of the Fe-doped films increased whereas the electrical conductivity decreased. As a result, the power factor of the system increased owing to the enhanced Seebeck coefficient. Grain growth inhibition was detected in the Fe-doped system, which produced more grain boundaries in the Fe-doped films than in the undoped system. The increased grain boundary scattering was deemed to be effective for a reduced thermal conductivity. This is advantageous for the preparation of high-performance thermoelectric films.

고밀도 유도 결합 플라즈마 장치의 SiH₄/O₂/Ar 방전에 대한 공간 평균 시뮬레이터 개발

배상현,권득철,윤남식,Bae, S.H.,Kwon, D.C.,Yoon, N.S. 한국진공학회 2008 Applied Science and Convergence Technology Vol.17 No.5

고밀도 유도결합 플라즈마 장치의 $SiH_4/O_2/Ar$방전에 대한 공간 평균 시뮬레이터를 제작하였다. 제작된 시뮬레이터는 $SiH_4/O_2/Ar$ 플라즈마 방전에서 발생되는 전자, 양이온, 음이온, 중성종, 그리고 활성종들에 대해 공간 평균한 유체 방정식을 기반으로 하고 있으며, 전자가열 모델은 anomalous skin effect를 고려한 파워 흡수 모델을 적용하여 전자가 흡수하는 고주파 파워량을 결정하였다. 완성된 시뮬레이터에서 RF-파워와 압력 변화에 대한 하전입자, 중성종, 활성종들의 밀도 변화 및 전자 온도 의존성을 계산하였다. A space averaged $SiH_4/O_2/Ar$ simulator for the high density inductively coupled plasma sources for $SiH_4/O_2/Ar$ discharge is developed. The developed simulator uses space averaged fluid equations for electrons, positive ions, negative ions, neutral species, and radicals in $SiH_4/O_2/Ar$ plasma discharge, and the electron heating model including the anomalous skin effect. Using the developed simulator, the dependency of the density of charged particles, neutral particles, and radicals, the electron temperature, the plasma resistance, and the power absorption coefficient for the RF power and pressure is calculated.

FPGA Implementation of VME System Controller

배상현,이강현,Bae, Sang-Hyun,Lee, Kang-Hyeon Korea Information Processing Society 1997 정보처리논문지 Vol.4 No.11

For FA (factory automation) and ATE (automatic test equipment) in the industrial area, the standard bus needs to increase the system performance of multiprocessor environment. VME(versa module european package format) bus is appropriated to the standard bus but has features of small package and low board density. Beside, the density of board and semiconductor have grown to become significant issues that affect development time, project cost and field diagnostics. To fit this trend, in this paper, we composed Revision C.1 (IEEE std. P1014-1987) of the integrated environment for the main function such as arbitration, interrupt and interface between, VMEbus and several control modules Also the designed, VME system controller is implemented on FPGA that can be located even into slot 1. The control and function modules are coded with VHDL mid-fixed description method and then those operations are verified by simulation. As a result of experiment, we confirmed the most important that is the operation of Bus timer about Bus error signal should occur within <TE>$56{\mu}m$, and both control and function modules have the reciprocal operation correctly. Thus, the constructed VHDL library will be able to apply the system based VMEbus and ASIC design. 산업분야의 공장자동화와 자동 측정장비의 다중 프로세서 환경의 시스템 성능을 향상시키는 표준버스가 필요하다. VME 버스는 이러한 명세에 적합하지만, 소규모 패키지와 보드의 낮은 집적성 사양을 가지고 있다. 더욱이 보드와 반도체 집적성은 개발시간, 연구비용, 현장진단에 영향을 주는 중요한 문제로 대두되어 있다. 이러한 추세에 맞추어, 본 논문에서는 VME 버스와 제어기 모듈 사이의 주기능인 중재, 인터럽트, 인터페이스를 Revision C.1(IEEE std. P1014-1987)의 통합환경으로 구성하고, 설계된 VME 시스템 제어기를 Slot 1에 장착할 수 있도록 FPGA 상에 구현한다. 제어 및 기능 모듈의 동작은 VHDL의 mid-fixed 방식으로 코딩을 하고 검증하였다. 실험을 통하여 VME 시스템 제어기의 가장 중요한 동작인 버스 타이머의 버스 에러 신호가 $56{\mu}m$ 이내에 발생된 것과, 제어모듈과 기능모듈의 정확한 상호 동작도 확인하였다. 그러므로 구축된 VHDL 라이브러리는 VME 버스 기반시스템과 ASIC 설 계 에 응용할 수가 있다.

CASE 자료 형식으로부터 CDIF 형식으로 변환하는 프로그램 자동 생성기의 구현

배상현,남영광,신규상,Bae, Sang-Hyun,Nam, Young-Kwang,Shin, Gyu-Sang 한국정보처리학회 2000 정보처리논문지 Vol.7 No.12

미국의 전자산업협회(Electronic Industries Association)에서는 1991년부터 CASE 도구간의 정보교환을 용이하게 하기 위하여 CDIF (CASE Data Interchange Format) 이라는 표준 형식을 제정해 오고 있다. 각 CASE 도구에서 사용된 데이터를 CDIF 형식으로 변환만 해주면 다른 CASE 도구에서 이를 자신에 맞는 형식으로 변환하여 사용할 수 있다. 이때 각 CASE 도구 공급자는 CDIF 형식으로 변환 혹은 CDIF 형식을 자신에 적합한 형식으로 변환하는 프로그램을 작성하여야 한다. 본 논문에서는 이러한 불편을 해소하기 위해서 CASE 도구 공급자가 각 CASE 도구에서 사용된 자료의 저장형식을 지정하여 주면 CDIF 형식을 지원하는 변환기의 소스코드를 자동으로 생성하는 생성기를 개발하였다. 이 자동 생성기는 CASE 도구에서 사용된 자료의 저장형식, 저장형식에 대한 메타정보, CDIF 메타정보를 입력받아서 CDIF 문장을 생성한다. 본 연구에서 개발한 자동 생성기는 정보저장소에 관계없이 단일화된 인터페이스를 제공하는 JDBC 및 Oracle과 Sun O/S 환경하에서 구현하였다. Electronic Industries Association has set a standard format called CDIF(CASE Data Interchange Format) for exchanging information between CASE tools from 1991. If data used on a CASE tool is represented in CDIF format, then any other CASE tools can use the data by translating CDlF format into their own format. In order to do so, each CASE vendor must provide a translator program from CDIF to its own data format or from its own data to CDIF format. In this thesis, we have implemented a source code generator for translating CASE data format into CDIF format only if they provide how data is stored. This automatic program generator generates CDIF statements using data format used in CASE tools, meta information about stored data and CDIF meta information. In the thesis, the automatic program generator has been implemented with Java and Oracle DBMS with JOBC interface in Sun O/S environment.

확정급여형 연금채무 유형별 비교 및 분석

배상현 ( Sang Hyun Bae ),이봉주 ( Bong Joo Lee ),성주호 ( Joo Ho Sung ) 한국보험학회 2016 保險學會誌 Vol.107 No.-

한국채택국제회계기준(K-IFRS) 도입 및 적립금 관련 규제 강화 등으로 인하여 확정급여형 연금채무에 대한 관심이 더욱 커지고 있다. 본 연구는 연금채무를 확정급여채무(DBO), 예측급여채무(PBO), 누적급여채무(ABO), 보장급여채무(VBO) 그리고 Max(PBO, VBO)로 구분하고, 각각의 연금채무를 비교ㆍ분석하였다. 분석 결과를 살펴보면 첫째, 근로자퇴직급여보장법과 퇴직연금 업무처리 모범규준에 명시된 할인율의 개선이 필요하다. 현행 할인율은 금리 하락 시 연금채무를 과소평가하여 재정건정성 지표로서의 역할에 문제점이 있다. 둘째, 연금채무의 인플레이션 리스크를 헤지하기 위해서 물가지수연동채권과 같은 다양한 투자자산을 개발하고 활성화할 필요성이 있다. 셋째, 재무상태 공시에 필요한 연금채무인 DBO와 재정건전성 규제에 필요한 연금채무인 Max(PBO, VBO)가 이원화되어 자산부채종합관리 관점에서 자산배분전략 수립 시 두 가지 연금채무를 모두 고려한 합리적인 의사결정이 필요하다. We investigate 5 different types of measures for DB pension obligation valuation, i.e. DBO, PBO, ABO, VBO, and Max(PBO, VBO). We obtain following results by comparing and analyzing pension obligations. First, the discount rate for DB pension obligation valuation measure in ERBSA is inappropriate for verification of financial soundness. It underestimates pension obligation when market interest rate falls. Second, we need to develope and activate various investment solutions like inflation index-linked bonds in order to hedge the inflation risk for DB pension obligation. Third, The type of pension obligation required in K-IFRS and ERBSA is different. The ALM strategies for DB pension plans have to be formulated based on reasonable solutions taking into account these two pension obligations.

眞鏡 審希의 활동과 鳳林山門

배상현(Bae. Sang-Hyun) 한국사학회 2004 史學硏究 Vol.- No.74

The period in which Jingyeong Simhui actively engaged himself marks an epoch when a new order was being established, breaking down the anden regime of Silla Dynasty, We can understand that Simhui's activities reflect many aspects of local society and temples, This thesis, in this respect, examines his major activities, dividing them into three stages,<br/> A descendent of royal family from Gaya Dynasty, Simhui couldn't expect any access to public offices because his clan was excluded from the ruling class of Silla Dynasty, After he became a Buddhist priest, he traversed various regions overflowing with anti-Sill a atmosphere. He experienced there not only the contradictions and restrictions of the late clays of Silla but the dynamic spirits of local societies as well,<br/> In the meantime, however, Simhui aroused Zen morale, trying to playa vital role in his society, Yet, his activities, never inclined to any doctrines, characterize him as 'a marginal being', This feature, in special, is vividly reflected, willie a chief priest at Bonglim Temple, in the education of his disciples, in his influence on lrx:al society, and in the relationship with the royalties.<br/> The tendency of Simhui's Zen ide-dS was very flexible, transcending both fonn and emptiness, He also took a finn stance neglecting neither the true nor the secular both of which he had come in contact with, In this sense we can judge that his activities were based on the reality recognition he had grasped, and this was not irrelevant to his activity cexle he pursued, It was widely recognized that, as Simhui's followers were called disciples of Bonglim or great monks of Bonglim, Jingyeong Simhui was the very one who set up the Bonglim ethos with its center at Bonglim Temple,<br/> The fact that Simhui had more than 500 disciples indicates how strong the influence of the temple was.<br/> economic aid of the temple came not only from the influential people of the local society but also from the royalties of Silla Dynasty. Such facts, we can conclude, reflect the range of Jingyeong Simhui's activities and the significance of Bonglim Temple as well as its morale.<br/>

고려시기 진주목 지역의 사원과 불전의 조성 - 분사 남해대장도감과의 관련성을 중심으로 -

배상현 ( Bae Sang Hyeon ) 대구사학회 2003 대구사학 Vol.72 No.-

This study aimed at investigating the making of Buddhist scriptures in the Buddhist temples of the Jinjumok(晉州牧) area during the Koryo dynasty, centering around the role of an agency called the Namhae Daejangdogam(分司 南海大藏都監). Though this agency has been considered the most probable organization to engrave on woodblocks the Koryo Daejanggyong, it is supposed to be an unmistakable limit of the related studies that the engraving has not been viewed as linked to the temples of the area. The organization overlooking the Namhae Daejangdogam had a close connection with the Jinjumok. Jinju was the sigeup(食邑) of the most powerful family of the time, the Chois, and the governmental seat of the kyesugwan(界首官) that controlled the Namhae(南海) region; there were also a number of prestigious temples distributed over the area. The operation of the Namhae Daejangdogam shows the hierarchical system in which it is located: from the top, the think-tank organ of the Chois’ regime, the jinyangbu(晉陽府), to anch’alsa(按察使) of the Kyongsang province, to the Jinjumok as the kyesugwan, to the Dansoksa as temple, down through the Namhae Daejangdogam. Anch’alsa as a temporary official with special mission held the additional office of the bunsa Daejangdogam and met the needs of personal and material resources through the temples of the area. In this connection, the Buddhist believers at home(居士層) like JeungAn(鄭晏) participated as the believers and influential sponsors(檀越). This means that the work was promoted under the joint auspices of the temples and the secular. However, as the purpose of the work was the making of Buddhist scriptures, the principal promoter was naturally the temples of the area. At the time, the Dansoksa(斷俗寺) was the representative temple of the area that participated in the work. Considering the Dansoksa as the leading temple of the Jinjumok area at the time, however, it is believed that it collected and directed the required personal and material resources from other temples of the area. Until the earlier period of the Chosun dynasty, the jangyongpangak(藏經板閣) of the temple retained the wood-blocks made in the Namhae Daejangdogam. According to records, Jonggyonglok(宗鏡錄) is the most indisputable work of the Buddhist scriptures made in the Namhae Daejangdogam. It is certain, however, that there are some other works made in the agency; they include Myobeubyonhwagyong(妙法蓮華經), Geumgangbanyabaramilgyong(金剛般若波羅密經), Bulseulyesusiwangsangch’ilgyong(佛說預修十王生七經), Seunmunyeomsongjib(禪門拈頌集), Keumgangsammaegyonglon(金剛三昧經論), Daebanggwangbulhwaeumgyonghaengwonpum(大方廣佛華嚴經行願品), Jodangjib(祖堂集), Nammyongjonhwasangsongjongdogasasil(南明泉和尙頌證道歌事實), and others. Finally, it should be pointed out that the making of the scriptures in this area was connected probably with temples located distant beyond the limit of the Jinju mok. It is hoped that this phase of the matter could be examined in some other time.

VME 시스템 제어기의 FPGA 구현

배상현(Bae Snag Hyun),이강현(Lee Kang Hyeon) 한국정보처리학회 1997 정보처리학회논문지 Vol.4 No.11

For FA(factory automation) and ATE(automatic test equipment) in the industrial area, the standard bus needs to increase the system performance of multiprocessor environment. VME(versa module european package format) bus is appropriated to the standard bus but has features of small package and low board density. Beside, the density of board and semiconductor have grown to become significant issues that affect development time, project cost and field diagnostics. To fit this trend, in this paper, we composed Revision C.1(IEEE Std. P1014-1987) of the integrated environment for the main function such as arbitration, interrupt and interface between VMEbuis and several control modules. Also the designed VME system controller is implemented on FPGA that can be located even into Slot 1. The control and function modules are coded with VHDL mid-fixed description method and then those operations are verified by simulation. As a result of experiment, we confirmed the most important that is the operation of Bus timer about Bus error signal should occur within 56%u33B2, and both control and function modules havethe reciprocal operation correctly. Thus, the constructed VHDL library will be able to apply the system based VMEbus and ASIC design.

자연에너지 복합 이용시스템에 대한 다목적 평가

배상현(Sang Hyun Bae),이재연(Jae Youn Lee) 한국태양에너지학회 1991 한국태양에너지학회 논문집 Vol.11 No.1

에너지 소비 구조의 개선을 목적으로 한 자연에너지 이용시스템의 도입이 전력 계통의 계획ㆍ운용에 미치는 영향을 다목적 최적화 방법을 이용하여 평가하는 방법이 논하여 지고 있다. 본 연구에서는 시험 제작한 태양열과 풍력 에너지를 주체로 하는 자연에너지 복합 이용시스템이 특정 지역에 복수 도입되어 지는 경우 전력 통계 운용에 의한 경제성, 안정성, 환경에 대한 영향 평가 방법을 검토하였다. 연구 방법은 대양 지역의 일사 분포와 풍속 분포에 의해서 취득 가능한 에너지를 산정하여 전력 계통 부하의 형상에 미치는 영향을 구하였고, 다음에는 대상 기간에 의한 최적 발전 배분을 결정하여 경제성, 안정성, 환경 지표 등의 평가를 하였다.<br/> 지금까지는 자연에너지 이용시스템의 도입에 대하여 경제적 측면만 논의되었지만, 본 연구에서는 제한된 방법에 의해 안정성과 환경 보전의 영향을 고려한 평가 방법도 가능하다는 것을 나타내었다. Research and development works on practical application of natural energy utilization systems involving solar, wind and sea wave energies are under promoting for the purpose of improving the energy consumption structure. These natural energies, made available with the use of relatively simple apparatus, are clean economically efficient and highly effective in the conservation of environment. However, these natural energies also have low energy density, randomness and regional variations. To compensate for these characteristics, hybrid utilization of solar and wind energies is. currently under study.<br/> The introduction of a plural number of the natural energy hybrid utilization systems into a specific area will affect the economic efficiency, reliability and environmental conservation. Evaluation method of such effects has been examined in this study.<br/> The present method consisted of the steps described below. First, available energy was calculated from insolation distribution and wind velocity distribution in the specified area, and then the effect on the configuration of the power system load was obtatined. This was followed by the determination of the optimal power dispatch over the specified period and by evaluations in light of economic efficiency, reliability and environmental indices.

송광사 소장 고문서에 비친 고려 사원의 모습 -「수선사형지기(修禪社形止記)」를 중심으로-

배상현 ( Sang Hyun Bae ) 한국중세사학회 2004 한국중세사연구 Vol.0 No.17

This thesis, after examining Suseonsa-Hyeongjigi, one of the Goryeo-era writings collected by Songgwang Temple, and based upon it, makes an approach to the features of the late Goryeo Suseonsa. This Hyeongjigi is a general document showing the consistent conditions of Suseonsa in late Goryeo Dynasty. The purpose of this writing was to succeed to the Buddhist tradition following the great monk Bojo Jinul, to manage the temple, and to confirm and maintain financial foundations. The content of document; probably written between the 17th year of King Gojong`s reign and the 11th year of King Wonjong`s rule, bears important values as a historical material in understanding the relationships between state and temple as well as temple and community, economic aspects of temples, and enshrinement and preparation of Buddhist sanctums. We see, first of all, that Suseonsa attracted national attention under positive protection. As a result, majority of royal family and high government officials took part in its establishment, producing many great monks esteemed nationwide. The relationship between Suseonsa and its neighboring villages is shown in Goryeo documents. More than 7 provinces and Bugok regions belonged to this community including Seungpyeong. The fact that residents in the area were active supporters of the temple reflects the position of Suseonsa leading the Bibo temple in Juhyeon. Suseonsa, which boasted of its prestige similar to other state-founded temples, possessed considerable land, fundamental resources in economic activity in premodern Goryeo era We see in the documents that most of the land was managed through Bo system guaranteeing independent management as well as transparent maintenance of the temple`s finance. It is also found that Suseonsa enshrined Tripitaka. Such fact proves, considering other documents, that Suseonsa paid continuous attention to creating and maintaining Tripitaka.