Ku-Band Cavity BPF설계

전형준,강창수,Jeon, Hyung-Joon,Kang, Chang-Soo 대한전자공학회 2005 電子工學會論文誌 IE (Industry electronics) Vol.42 No.4

본 논문에서는 삼중모드 공동 공진기를 이용하여 위성 탑재용 2단 6-pole 대역통과 필터를 설계 제작하였다. 대역통과 필터는 중심 주파수 14.5GHz(Ku-band)에서 대역폭 100MHz로 설계하였으며 응답은 Chebyshev 함수를 이용하였다. 공동 공진기의 공진모드는 TE113과 TM012 모드를 이용하였다. 공동 공진기간의 결합(intercavity coupling)은 Chebyshev 필터 응답을 구현하기 위하여 TE113 모드의 자계 성분만을 결합하였다. 따라서 원통형 공동 공진기내의 TE모드와 TM모드에 대한 E-,H-field 기본식으로부터 결합계수 수식을 유도하여 이를 intercavity 슬롯의 위치와 크기를 결정하는데 이용하였다. 설계 제작된 2단 6-pole 삼중모드 공동 공진기 대역통과 필터의 통과 대역폭에의 평균 삽입손실은 2.4dB이며 통과 대역의 반사손실 S11은 평균 15dB 이상으로 측정되었다. 본 논문에서 제작된 삼중모드 필터는 위성 탑재 장치내에 채널 필터 및 일반 시스템의 필터 어셈블리를 소형화시키는데 적용가능할 것으로 판단된다. In this paper, a 2 stage 6-pole bandpass filter(BPF) is designed and implemented by using triple-mode cavity for satellite payload system. The BPF has a 100MHz bandwidth at the center frequency of 14.5GHz(Ku-band) and the response of the filter is the Chebyshev function. The cavity filter uses two orthogonal $TM_{113}$ modes and one $TM_{012}$ mode. The coupling between the adjacent cavityes(intercavity coupling) results in a Chebyshev response and is accomplished by only H-filed component of If modes. The size and location of intercavity slot is determined by the coupling equation from E-and H-field of TE and TM resonant modes in circular cavity. The 2-stage 6-pole triple-mode cavity BPF has the insertion loss of 2.4dB and the reflection loss of 15dB in the passband. The triple-mode BPF proposed in this thesis can be used as channel filters for satellite payload system and can minimize filter assembly in general wireless communication system.

4개월간 한방치료를 받은 전이성 담낭암 환자 증례

전형준,조종관,이연월,유화승,Jeon, Hyung-Joon,Cho, Chong-Kwan,Lee, Yeon-Weol,Yoo, Hwa-Seung 대한한방내과학회 2012 大韓韓方內科學會誌 Vol.33 No.3

Objectives : To observe the therapeutic effects of Oriental herbal prescriptions on an advanced metastatic gallbladder cancer patient. Methods : Hang-Am-Plus (HAP), Gun-Chil-Gye-Bok-Jung (GGJ) and Se-Gan-San (SGS) were prescribed three times a day. To observe the therapeutic effects of oriental medical prescriptions, computed tomography (CT) and magnetic resonance imaging (MRI) images, tumor markers and laboratory tests were carried out regularly. Results : The levels of AST, ALT, ALP, ${\gamma}$-GTP, TB, DB, CA19-9, and CEA decreased significantly from November 29th 2011 to March 14th 2012. There was no interval change on CT images taken between November 15th 2011 and January 3rd 2012. Conclusions : In this case, it could be concluded that Oriental medicinal treatment might be considered as a palliative alternative therapy for the advanced metastatic gallbladder patient.

'동아시아 근대의 고뇌' 루쉰과의 대화

전형준,Jeon, Hyeong-Jun 대한출판문화협회 1998 출판저널 Vol.231 No.-

동시 간전이 직장 구불결장암 환자의 재발성 복수에 대한 SB 복강 주입의 복수 감소 효과 증례

전형준,김종민,조종관,이연월,한균인,유화승,Jeon, Hyung-Joon,Kim, Jong-Min,Cho, Chong-Kwan,Lee, Yeon-Weol,Han, Kyun-In,Yoo, Hwa-Seung 대한한방내과학회 2013 大韓韓方內科學會誌 Vol.34 No.4

Objectives : To report and demonstrate the effect of decreasing ascites volume by SB intraperitoneal injection to a refractory ascites patient with synchronous colorectal liver metastasis and metachronous peritoneal carcinomatosis. Methods : Two cycles of intraperitoneal and intravenous SB injection were conducted. Each injection cycle was made up of 4 days. Nine vials of SB were injected to the patient every day. To compare the volume of ascites between pret- and post-treatment, follow-up computed tomography was done on June 3, 2013. To observe other therapeutic effects of SB injection, laboratory tests were conducted periodically. Results : On the follow-up computed tomography images, the amount of ascites and pleural effusion had decreased compared to the April 30, 2013 computed tomography images. The levels of aspartate transaminase, alanine aminotransferase and lactate dehydrogenase decreased significantly from May 9, to May 30, 2013. The amount of oral intake increased constantly during hospitalization. The patient's symptoms such as abdominal distension, abdominal pain and dyspnea were improving until discharge. Conclusions : Even if thiese results cannot be applied to every synchronous colorectal cancer liver metastasis patient, we demonstrated that SB intraperitoneal injection has ascites-decreasing effect to refractory ascites patients with synchronous colorectal liver metastasis and metachronous peritoneal carcinomatosis.

$SCANORA^{(R)}$를 이용한 Mesiodens의 진단

전형준,김종수,권순원,Jeon, Hyung-Joon,Kim, Jong-Soo,Kwon, Soon-Won 대한소아치과학회 2000 大韓小兒齒科學會誌 Vol.27 No.4

정중과잉치는 과잉치중 가장 흔한 양상이며, 여러 가지 합병증이 생길 수가 있다. 이러한 합병증이 있음에도 불구하고 항상 발견 즉시 외과적 발거를 하는 것이 최선의 방법은 아니다. 여러 가지 상황을 고려하여 외과적 발거를 연기해야할 경우가 있으며 이때 정확한 진단이 필수적이다. 진단은 주로 방사선학적 검사에 의존하게 되며 정중과잉치의 수, 위치, 방향의 판단에 중요하다. 그간 정중과잉치의 진단에 이용되었던 방사선 사진은 각각의 장단점이 있다. $SCANORA^{(R)}$(Soredex, Finland)는 narrow beam radiology와 spiral tomograph의 원리를 이용한 다기능 두부촬영장치이다. 정중과잉치의 정확한 위치를 결정하기 위해 tube shift technique을 이용한 방법이 주로 사용되고 있으나 $SCANORA^{(R)}$를 이용해 비교적 간단하고 정확히 진단할 수 있었기에 보고하는 바이다. Mesiodens are supernumerary teeth in the region of the maxillary central incisors, a condition which can lead to disorders of the dentition. Their presence may lead to disorders, such as delay in eruption of permanent teeth, development of dentigerous cysts, resorption of adjacent roots and eruption of a supernumerary tooth into nasal cavity. The optimal time for surgical intervention is controversial. Early diagnosis is important so as to enable good prognosis. Diagnosis primarily depends on x-ray films. Panorama film, occlusal film, periapical film have been used for detection of mesiodens. But, all of them have disadvantages. $SCANORA^{(R)}$ is a multimodal radiology system which utilizes the principles of narrow beam radiology and spiral tomography. Pre-programmed imaging procedure are provided for many dental situations An optional personal computer can be connected into the unit to help design the examination. We report two cases diagnosed by $SCANORA^{(R)}$. When compared with tube shift technique, it is simple and exact method of detecting mesiodens.

공공갈등과 분쟁에 관한 세대 간 인식 차이

전형준 ( Hyoung Joon Jeon ) 단국대학교 분쟁해결연구소 2008 분쟁해결연구 Vol.6 No.2

교육서비스에 대한 시장기능 도입 타당성 검토 - 외국사례를 중심으로

전형준(Jeon Hyung-Joon) 한국교육재정경제학회 2006 敎育財政 經濟硏究 Vol.15 No.1

  본 연구에서는 최근 정부에서 추진하고 있는 교육바우처제도와 영리법인 도입 등 국가제공 교육서비스에 대한 시장기능 도입의 타당성을 이미 이들 제도를 실시하고 있는 외국의 사례를 통해 검토하였다. 그 결과 교육바우처제도는 경쟁을 촉진하여 교육의 질적 수준 향상에 도움을 줄 수 있지만 예산절감 효과는 나라에 따라 다르게 나타나고 경우에 따라서는 불평등성을 악화시키고 공교육의 붕괴를 가져올 우려가 있다는 것이다. 또 지금까지의 연구결과에 따르면 학교 선택권 확대와 영리교육기관 도입이 교육의 질을 향상시켰다고 단정하기는 힘들다.   In this study, I studied the appropriateness of introduction of voucher system and for profit-making corporation to the korean educational service sector by using the foreign countries" experiences. As a result, The voucher system can help to improve the educational quality by introducing the competition but the cost effectiveness of it is not clear and cause the educational inequality and it is possible to heart the public educational system. Also we cannot confirm that the expansion of school choice and the introducing of for profit-making school can increase the educational quality.

조직 내 갈등에 대한 일방 당사자 중심의 해결

전형준(Hyoungjoon Jeon) 한국정책과학학회 2016 한국정책과학학회보 Vol.20 No.2

조직 내에서 발생한 갈등을 적절히 해결하는 것은 개인 차원에서는 직장 생활의 만족도를 높이고 집단차원에서는 소통을 원활히 함으로써, 조직이 현명한 결정을 내리고 더욱 건강해지는 데 기여한다. 조직 내 갈등해결을 위한 다양한 방법이 있지만, 많은 조직들이 시스템을 갖추지 않았거나, 시스템을 갖춘 경우라도 구성원들이 이런 방법들이 있다는 것을 모르기 때문에 활용도가 낮다. 갈등코칭은 조정이나 중재 등과는 달리 한 쪽만 갈등해결을 원해도 실시할 수 있는 갈등해결 방법이다. 본 연구에서는 갈등코칭의 네 가지 관점을 정리하고, 그 중 하나인 내러티브 기반의 갈등코칭을 실시한 두 가지 사례를 분석했다. 각 사례별로 정체성, 감정, 권력의 차원에서 코칭이 어떻게 이루어졌는지를 서술했으며, 두 사례 간에 초기 내러티브, 내러티브 분석, 새로운 내러티브 작성, 실천방안 모색 차원에서 어떤 공통점과 차이점이 있는지를 비교했다. Resolving conflicts in an organization can raise personal satisfaction in workplace and promote communication among members of the organization. Good communication among leaders is a sign of healthy organizations and it enhances the organization to make wise decisions. There are many ways to resolve conflicts in an organization; however, people do not use them often because many organizations do not have such conflict resolution systems or workers do not know their workplace have such ones. Conflict coaching is a conflict resolution method that can be used when mediation or arbitration cannot be adopted. Mediation and arbitration require agreement among the parties, but conflict coaching does not. This study introduce four approaches of conflict coaching practices, and present two coaching cases that adopted a narrative conflict coaching approach. Each case was analyzed with the frames of identity, emotion, and power. Two cases were compared along their first narratives, analysis of the narratives, development of new narratives, and implementing the action plans.

공간획득 장치를 이용한 3D 사진의 활용 방안 연구

전형준 ( Hyoung Joon Jeon ),이승진 ( Sung Jin Lee ),권순철 ( Soon Chul Kwon ),이승현 ( Seung Hyun Lee ) 한국사진학회 2014 AURA Vol.0 No.32

This research is to find out whether a photo is copied or not by using the reflective characteristics of different papers. There have been numerous studies to check whether it is a photocopy or. However, the preceding research did not consider the changes according to the lighting reflection of different papers. Accordingly, in this research, I took a photograph after choosing glossy, semimat, and dull papers when shooting photocopies with the lighting position of 0 to 90 degrees angle. In addition, I experimented by making charts that can represent the domain of black, grey, and white colors. After this, I calculated the reflection rate of different papers and applied it to photographs.

광고사진매체의 활용을 위한 홀로그래픽 스테레오그램 제작 -투명체 제품을 중심으로-

전형준 ( Hyoung Joon Jeon ),박성환 ( Sung Hwan Park ),권순철 ( Soon Chul Kwon ),이승현 ( Seung Hyun Lee ) 한국사진학회 2013 AURA Vol.0 No.31

Holographic stereogram is a practical hologram which grafts a part of stereoscopic three-dimensional image technology without losing the nature of holography. Hologram is composed onto record material using flat image as its original from different multiple views. The thesis collected information on three-dimensional image for film from digital image data using Commercial photography. Toed-in multi-view 3D image was extracted and holographic stereogram was recorded using spatial light modulator. The study showed that it is possible to produce hologram using Containing a variety of commercial photography lighting techniques.