기독교신앙과 서양문화 : 일신교와 다신교의 경합과 혼재

권순구(Soon Gu Kwon) 영남신학대학교 2006 신학과 목회 Vol.25 No.-

It is said that the Western Culture has grown in the soil of both the Bible and the Greek myth. The Bible represents the world of monotheism, and the Greek myth shows the world of polytheism The Bible refers largely to Christianity and monotheism, and the Greek myth to Roman culture and polytheism. Often spoken, polytheism tends to admit human beings to have liberty in a large spectrum of human behaviors, while monotheism restricts the autonomy of in many parts of human life. Therefore polytheism tends to be preferred to monotheism among the strong and the confident. The gods of polytheism who worshipped by the Roman empire function only as helpers, not as controllers, according to the view of Siono Nanami who is the writer of Roman Stories which is planned to 15 volumes and published in Japanese, and translated in Korean with 14 volumes by now. Nanarni recognizes that polytheism is the religion of the strong who don't want to be controlled by other persons, even by gods. If so, monotheism has to be the religion of the weak physically, politically or militarily. This point may be a hard problem to Christians, including me, who have their faith in monotheistic Christianity which is not thought to be the religion for only the weak. In the polytheistic world of thought, gods are almost the same as humans in behaviors and morality and their role is largely restricted to the help to human beings, particularly to politically promising elites or militarily winning generals. Considering this point, it is not strange that those who are confident and rich tend to rely on the religion of polytheism If it is true, polytheism must be a humanistic religion which prefers to stand in the side of victorious people or nations, and the religion for the present age, not for the future one. So polytheism was qualified to be the religion of the Roman empire prospering enormously and enlarging outwardly. But the strong is not enduring forever. Though the Roman empire was thought to be eternal among her citizens, their hope was not achieved on account of the decay and collapse of the empire in the middle of 5th century. Some states that the reason to the end of the empire was primarily the emergence of monotheistic Christianity in the world of Roman polytheism. Differing with polytheism, monotheism has one God who provides human beings with the rule of human life and gives the guideline for human behaviors and social relations. Monotheistic thought-world and some doctrines of Christianity may be suffocating people filled with political or economic confidence who refuse to be interfered by others or gods. But Christianity is the religion for the strong as well as the weak. Misunderstanding is characteristic of human beings. A real world of human life is not simple but complicated. It is also true concerning to the attitude to a religion. To most of religious people the thought world of polytheism is intermingled with the thought world of monotheism. People often reveal their duality also in the part of religion. Sometimes they are inclined to rely on polytheism. Sometimes they are to stand in the side of monotheism. Therefore it is not easy to continue to stand in the side of one of two religious world of monotheism and polytheism. Most of the religious are taking their seats in a moving point between the world of monotheism and the world of polytheism. Polytheism politically defeated in struggle with monotheism, particularly with Christianity, in the Western society and Christian churches permeates its humanistic and materialistic belief to the heart of the members of monotheistic Christianity. Polytheistic faith centered on the present age has influenced deeply on the thought world of monotheism. So the more important part of monotheistic faith has been shaken by the shock of polytheistically preferred materialism and Mammonism. Many members of the monotheistic religion of Christianity has been soaked in the religious water of polythei

X-밴드 SAR 데이터를 이용한 위성 SAR 검보정 실험

권순구(Soon-Gu Kwon),황지환(Ji-Hwan Hwang),신종철(Jong-Chul Sin),오이석(Yisok Oh) 한국통신학회 2011 한국통신학회 학술대회논문집 Vol.2011 No.2

부동산 수익에 대한 인식과 실제간 간극

권순구(Soon Gu Kwon),강명구(Myoung Go Kang) 서울연구원 2011 서울도시연구 Vol.12 No.1

Comparative Study on Efficiencies of Naturally-Ventilated Multi-Span Greenhouses in Korea

Soon-Hong Kwon(권순홍),Sung-Won Jung(정성원),Soon-Gu Kwon(권순구),Jong-Min Park(박종민),Won-Sik Choi(최원식),Jong-Soon Kim(김종순) 한국산업융합학회 2017 한국산업융합학회 논문집 Vol.20 No.1

This research analyzed the ventilation effect of the multi-span greenhouse based on the types of greenhouse structure, weather conditions, and locations inside the greenhouse. To compare and analyze the ventilation effects with different types of greenhouse, the uniform environmental conditions should be selected in advance. But these factors are not controlled and require tense many precision facilities and labor forces. Thus, the CFD simulation was used for the air stream to be analyzed qualitatively and quantitatively. In addition, for the ventilation effect analysis, the TGD (Tracer Gas Decay) was used to overcome the shortcomings of the current ventilation measurement method. The calculation error of ventilation rate using TGD was low (10.5%). Thus, the TGD is very effective in calculating the ventilation efficiency. The wind direction of 90 degrees showed the best ventilation effect. The ventilation rate also decreased along the air circulation path, and the rate was the lowest around the outlet. The computed fluid method (CFD) turned out to be a power tool for simulating flow behavior in greenhouse.

‘사람됨’(being human)과 ‘바로삶’(right living) : 인간존재의 의미와 도덕실천의 의무

권순구(Soon-Gu Kwon) 영남신학대학교 2005 신학과 목회 Vol.24 No.-

Man is a social being who lives together with other persons. To live peacefully one another in the very complicated and money-driven society each of human beings has to practice the art of living together with others. Man himself should remain as man who has an ability to treat other as man who deserves human dignity, otherwise man is apt to fall down into an animal-being who is thought to be opposite to a human being. In the period of economic crisis man concentrates himself only to survive in a society hard to keep living, so he has no room to think how to live a morally good life and it becomes hard for him to make an effort to be a morally good person. When he thinks of (biological) existence only, it is almost hard for him to reflect and lead his (moral) life. At the time of the oppression of poverty and economic depression mutual care between fellow -human beings is required to live together. Obviously a human being starts his life as a biological person, but he should strive to be a being human who is a moral person. The biological person is only a person before he makes himself be a moral one. The dignity of a person starts as the biological being, but the social recognition is given to the moral being. Therefore it is more important to ask who man is than what he is. A view of a human being shows the degree in which each estimates the dignity of man. Many people, especially including some animal ecological scholars and behavioristic psychologists, consider a human being as a member of the kingdom of animal. Some people regards him as machine producing goods, and some looks him as the goods itself. These three views underestimate the dignity of human beings. The fourth view is to look the man as a divine being who has the image of God. When we take the fourth view, it is possible for the human being to achieve the personality of the image of God. The question of 'who is man?' is morally more desirable than the Question of 'what is man?' A human being needs a model to make him 'being human', because he has learned and continues to learn almost everything by imitating the life of model who is thought to have lead a morally good life. Some moral characteristics of the good model of being human contain, I think, at least virtues like responsibility, humility and love. These three virtues should be considered as the fundamental ones for the achievement of the human task of 'being human' and 'right living.'

SAR 영상 보정용 삼각 전파 반사기의 정확한 RCS 추출

권순구(Soon-Gu Kwon),윤지형(Ji-Hyeong Yoon),오이석(Yisok Oh) 한국전자파학회 2010 한국전자파학회논문지 Vol.21 No.9

본 논문에서는 합성 개구 레이더(SAR: Synthetic Aperture Radar) 영상에서 SAR 보정용으로 설치된 삼각 전파 반사기(TCR: Trihedral Corner Reflector)의 레이더 단면적(RCS: Radar Cross Section)을 정확하게 추출하는 방법을 연구하고, SAR 보정 정확도를 분석한다. TCR의 이론적 RCS를 geometrical optics(GO)와 physical optics(PO) 방법을 이용하여 이론적으로 계산하고, 측정값과 비교하여 정확성을 검증한다. 이때에 단일 반사는 PO로, 이중 반사는 GO-PO로, 삼중 반사는 GO-GO-PO로 계산하고, 모서리 영향은 PTD(Physical Theory of Diffraction) 방법을 이용하여 이론적 RCS를 정확하게 계산한다. 크기가 다른 5개의 TCR를 설치하고, TerraSAR-X로 그 지역에 대한 위성 영상을 취득하여 그 TCR들에 대한 RCS를 추출한다. 레이더 IRF(Impulse Response Function) 특성에 의해 분산된 전력(power spill)을 모두 구하기 위해 정사각형 모양의 면적(window)을 설정하여 정확하게 RCS를 추출하고, 이 RCS를 이론적 RCS와 비교한다. 면적의 크기와 배경의 레이더 후방 산란 계수 크기에 따른 TCR의 RCS 오차를 계산하며, 최소 적분 면적과 최대 배경 산란계수 크기를 제안한다. This paper presents an algorithm for retrieving precise radar cross sections(RCS) of various trihedral corner reflectors (TCR) which are external calibrators of synthetic aperture radar(SAR) systems. The theoretical RCSs of the TCRs are computed based on the physical optics(PO), geometrical optics(GO), and physical theory of diffraction(PTD) techniques; that is, the RCS computation includes the single reflections(PO), double reflections(GO-PO), triple reflections(GO-GOPO), and edge diffractions(PTD) from the TCR. At first, we acquire an SAR image of the area that five TCRs installed in, and then extract the RCS of the TCRs. The RCSs of the TCRs are extracted accurately from the SAR image by adding up the power spill, which is generated due to the radar IRF(Impulse Response Function), using a square window. We compare the extracted RCSs with the theoretical RCSs and analyze the difference between the theoretical and experimental RCSs of the TCR for various window sizes and various backscattering coefficient levels of the adjacent area. Finally, we propose the minimum size of the integration area and the maximum level of the backscattering coefficients for the adjacent area.

공부와 도덕 : 도덕적 행위로서의 공부와 공부의 표현으로서의 삶

권순구(Soon Gu Kwon) 영남신학대학교 2007 신학과 목회 Vol.27 No.-

Study is an essential part of a human life. It is said, "without study, no life." This is to stress the importance of study in the human life. If a man ceases to study, it can be said that he is no longer alive. To study aims at striving to be human and living as a moral being in a society with others in a situation of mutual understanding and cooperating peace. Acquired studies, such as speaking, reading and writing, work as the basis of embodied studies like body-living and soul-using for becoming a good moral agent in a moral community. Therefore the studies of speaking, reading and writing for trying to win a social success and get a comfortable life are not the whole of but a part of study to a moral agent. To start with honesty in speaking and writing is strongly required to members of a society, especially of an academic world, as moral agents. Academic and religious leaders as well as political and economic leaders should cherish honesty in speaking and writing as the best policy for their performances of a socially given tasks and morally required life. It may not be exaggerating to assert that moral perfection is the end of study. To study is to do a moral act and man should study to be morally human. Man has to study for the aim of becoming a morally good person through all the kinds of studies.

지표면 별 영상잡음과 영상질감을 이용한 SAR 클러터 영상 생성

권순구 ( Soon Gu Kwon ),오이석 ( Yi Sok Oh ) 대한원격탐사학회 2009 大韓遠隔探査學會誌 Vol.25 No.4

본 논문에서는 다양한 종류의 지표면에 대하여 분석하여 산란 특성을 연구하고 SAR 클러터 영상을 제작하고 실제 SAR 클러터 영상과 비교한다. 먼저 지표면의 특성을 분석하기 위해 각각의 지표면에 대해서 입력변수를 측정한다. 측정한 데이터를 이용하여 Oh 모델, PO 모델, radiative transfer model (RTM)을 이용하여 각도 별 산란계수를 구하였다. SAR 영상 생성을 위해 먼저 측정 지역의 DEM (digital elevation map)과 LCM (land cover map)데이터를 제작한다. DEM 데이터의 단일 픽셀(pixel)의 높이 정보를 이용하여 픽셀의 입사각을 계산하고 입사각에 따른 해당 지표면의 산란 계수를 대입한다. LCM 데이터는 해당 지역의 답사를 통해 논, 밭, 산, 길, 인공물 등을 1:5000 지도에 기입하여 SAR 영상 생성에 사용한다. DEM 데이터와 LCM 데이터를 사용하여 입사각과 지표면 종류에 따른 계수를 계산하고 영상잡음(speckle)과 영상질감(texture)을 이용하여 SAR 클러터 영상을 생성하고 실제 영상과 비교한다. In this paper, synthetic aperture radar (SAR) clutter images are simulated based on the extensive analyses for radar backscatter characteristics of various earth surfaces, and the simulated images are compared with measured SAR images. At first, the surface parameters including soil moisture content and surface roughness parameters and other parameters for vegetation canopies are measured for various surfaces. The backscattering coefficients for the surfaces are computed using theoretical and empirical models for surface scattering and the radiative transfer for vegetation-canopy scattering. Then, the digital elevation map (DEM) and land cover map (LCM) are used for the SAR image generation. The SAR impulse response (correlation function) is also employed to simulated reliable SAR images. Finally, the appropriate speckle and texture parameters for various earth surfaces are used for generating the SAR clutter images.

ICT기반 관개 방법에 따른 콩의 Soil Moisture Monitoring System 개발

권순홍 ( Soon Hong Kwon ),서정덕 ( Jung Duck So ),정기열 ( Ki-yeol Jung ),이상훈 ( Sanghun Lee ),김종순 ( Jongsoon Kim ),박종민 ( Jong Min Park ),권순구 ( Soon Gu Kwon ),김동현 ( Dong-hyun Kim ) 한국농업기계학회 2017 한국농업기계학회 학술발표논문집 Vol.22 No.2

생산성이 낮은 밭작물의 안정적인 생산을 위해서는 정보통신기술(ICT)을 이용한 자동물관리 시스템의 구축이 필요하다. 본 연구에서는 콩의 생산성 향상을 위해 지표 및 지중의 용 · 배수를 자동으로 구현하도록 관개방법 별 토양수분을 측정할 수 있는 모니터링 시스템을 구축하였다. 지표관개에 의한 토양수분 함량은 68×13.5 m 크기의 토양에 토양 깊이(10, 20, 30, 40 cm)별로 토양 수분센서를 관개방법(지표점적, 스프링클러, 분수살수)에 따라 설치하였다. 설치간격은 각각 1.2 m, 10 m, 3 m로 하였다. 근권층(토양10 cm)의 토양수분 함량을 기준으로 관개시점의 수분함량을 30%로 설정하여, 이보다 낮으면 자동으로 관개되도록 시스템을 구축하고 제어 프로그램화 하였다. 지중점적관개는 30×9 m 크기의 토양에 이랑 및 고랑 하부에 20 cm 깊이로 70 cm 및 140 cm 간격으로 점적관을 각각 매설하고 토양 수분의 모니터링이 가능하도록 하였다. 지하수위제어관개는 지하수위 높이를 0.3 m와 0.6 m, 암거관 간격을 3 m와 6 m로 하여 토양수분센서를 각각 설치하여 모니터링 하였다. 지표관개의 경우 분수살수, 지표점적, 스프링클러관개 순으로 토양의 깊이에 관계없이 토양수분함량이 높았다. 지중점적관개의 경우 점적관 설치 위치 및 간격에 관계없이 토양이 깊을수록 수분함량이 높게 나타났다. 지하수위제어관개는 지하수위가 높을수록 토양수분의 변동이 적은 것으로 나타났다. 이러한 ICT기반 관개 방법에 따른 콩의 최적 물관리 시스템은 작물 생산성 향상 및 식량 자급률 향상에 기여할 것이다.

마늘 주아채집장치 개발

권순홍(Soon Hong Kwon),정성원(Sung Won Jeong),권순구(Soon Gu Kwon),박종민(Jong Min Park),최원식(Won Sik Choi),서정덕(Jung Duk So) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6

This research analyzed the growth characteristics of garlic stalks and bulbils through research articles and field survey as a preliminary, and designed and manufactured prototype garlic stalks collecting system. The overall size of the prototype garlic stalks collecting system was 1825 (L) × 570 (W) × 1362 (H) ㎜, and consisted of reaping, conveying, collection, power source, traveling, and control unit. Performance of the prototype garlic stalks collecting system was evaluated at field of crop reception and distribution complex located at Seosan City, Chungnam, Korea. Results of evaluation of reaping, conveying, and collection units were generally satisfying. Following discussions, however, is found to be considered to improve the prototype garlic stalks collecting system for better performance or some modifications to improve the system during research.