1000BASE-T의 4조 PAM-5 신호 상에서 동작하는 비터비 디코더의 구현

정재우,정해,Jung, Jae-Woo,Chung, Hae 한국정보통신학회 2014 한국정보통신학회논문지 Vol.18 No.7

LAN 방식은 국내의 초고속 인터넷 서비스에서 가장 널리 사용되며, UHD TV와 같은 고속의 서비스를 제공하기 위하여 100 메가급에서 1 기가급 이더넷으로 빠르게 전환되고 있다. 1000BASE-T 물리계층은 1 Gbps의 전송속도를 달성하기 위해, 4조의 UTP상에서 각 조당 125 MHz의 PAM-5신호로 데이터를 전송한다. 채널 상에서 발생한 오류를 정정하기 위하여 송신측에서는 컨벌루션 부호와 PAM-5신호를 결합한 TCM을 사용하고, 수신측에서는 비터비 복호기를 사용한다. 본 논문에서는 1000BASE-T의 수신측에서 최소 125 MHz 속도와 최대 2조까지 오류 정정 능력을 제공하는 비터비 디코더를 구현한다. 그리고 구현한 디코더를 논리분석기로 이용해서 동작속도와 오류 정정 능력을 검증한다.

연명의료 결정 제도화에 대한 윤리적 성찰

정재우,Jung. Jae Woo 가톨릭생명윤리연구소 2014 인격주의 생명윤리 Vol.4 No.1

‘연명의료 결정’이란, 죽음을 맞이하는 시기에 환자에게 행하는 처치에 대해 어떠한 것을 행하고 어떤 것을 하지 않을 것인가를 결정하는 것을 가리킨다. ‘연명치료 중단’이라는 말이 많이 사용되고는 있으나, 치료를 중단한다는 말은 그 자체로 어떤 부당한 의미를 내포하고 있어 ‘연명의료 결정’이라는 말이 제안된 바 있다. 이것이 윤리적 으로 중요한 논제인 이유는 죽음이 임박한 시기에 생명의 의미와 가치, 그리고 의료행위와 돌봄의 문제가 철학적, 윤리적, 사회적으로 매우 중요한 함의를 갖기 때문이다. 이에, 본 논문에서는 연명의료 결 정의 의미가 무엇이며 윤리적으로 합당한 연명의료 결정이란 어떤 것인지를 생각해 보고, 현재 사회적으로 논란이 되고 있는 연명의료 결정의 제도화, 즉 법제화에 대하여 성찰해 보고자 한다. Decision making regarding life-sustaining treatments occurs with regard to treatments for patients in terminal stage of life. Regarding this decision making, we need to bear in mind that human being is limited but has dignity. The dignity of human being should be respected in a special way in medical practices: to diagnose patient 's physical condition accurately and to provide him with appropriate treatments and care until his or her death. This is the way to realize the essence of medicine which is service for life. However, there are unacceptable mentalities according to which the life and sufferings of a patient are meaningless so it needs to decide his life and death by killing him. As it can not be justified to kill deliberately a man who is alive, euthanasia is unacceptable in any sense. The principles and limits on the desirable decision making regarding life-sustaining treatments are the following: ① excluding any action and omission in order to kill deliberately patients, ② doing medical practices which are proportionate, useful and necessary for patient ' s conditions, but not doing those which are disproportionate and futile, ③ consider the medical judgements which discern adequate treatments as basic criteria, ④ offering basic caring including nutrition and hydration, pain control,hygiene, and etc. until the death of the patient Based on this fundamental principles, the Catholic Church strongly opposes ① doing medical practices which are disproportionate and futile, ② any type of euthanasia, ③ the notion that we decide when to die;Furthermore it supports for ① the acceptance of natural death, ② planning future treatments to use in continuos dialogues between patient and doctor, ③ promoting hospice-palliative care, reflection and education regarding meaning of life, suffering, and death.

나노크기 표면 요철을 이용한 GaN LED의 광추출효율 향상

정재우,김사라,정준호,정종율,Jung, Jae-Woo,Kim, Sarah,Jeong, Jun Ho,Jeong, Jong-Ryul 한국재료학회 2012 한국재료학회지 Vol.22 No.11

In this study, we have investigated highly efficient nanoscale surface corrugated light emitting diodes (LEDs) for the enhancement of light extraction efficiency (LEE) of nitride semiconductor LEDs. Nanoscale indium tin oxide (ITO) surface corrugations are fabricated by using the conformal nanoimprint technique; it was possible to observe an enhancement of LEE for the ITO surface corrugated LEDs. By incorporating this novel method, we determined that the total output power of the surface corrugated LEDs were enhanced by 45.6% for patterned sapphire substrate LEDs and by 41.9% for flat c-plane substrate LEDs. The enhancement of LEE through nanoscale surface corrugations was studied using 3-dimensional Finite Different Time Domain (FDTD) calculation. From the FDTD calculations, we were able to separate the light extraction from the top and bottom sides of device. This process revealed that light extraction from the top and bottom sides of a device strongly depends on the substrate and the surface corrugation. We found that enhanced LEE could be understood through the mechanism of enhanced light transmission due to refractive index matching and the increase of light scattering from the corrugated surface. LEE calculations for the encapsulated LEDs devices also revealed that low LEE enhancement is expected after encapsulation due to the reduction of the refractive index contrast.

전자무역 구현에 따른 e-무역상사의 발전방향에 소고

정재우(Jung Jae-Woo),홍영선(Hong Young-Sun) 한국관세학회 2006 관세학회지 Vol.7 No.1

This study investigates the present status and development of e-marketplace which is the most actively used in the e-trade stages from market research, searching for business partners, negotiations to contract. Launched in the end of march, 2003, e-Trade Service Provider (EC21, EC plaza and Tpage global) is an online B2B marketplace that brings together buyers and sellers from around the globe. The e-Trade Service Provider provides a stable and effective platform for businesses to advertise and locate companies and products throughout the world. e-Trade Service Provider's services are free, simple to use, and work. They include an automatic homepage generator for unlimited posting of product images and descriptions; automated cross-posting and search engine listing of offers to buy/sell; practical online management tools e-Trade Service Provider also understand that trust is crucial. e-Trade Service Provider is committed to eliminate internet fraud. As well as online services, e-Trade Service Provider provide comprehensive offline trade support. e-Trade Service Provider work closely with trade local organizations to assist overseas buyers with procurement, import processing, and trade visits. e-Trade Service Providers are achieving our goal and building an online B2B marketplace that truly changes the way the world trades.

신(新)관세행정 패러다임의 확산과 한국의 대응방안

정재우(Jae-Woo Jung),김규형(Kyu-Hyong Kim),이갑수(Gap-Soo Lee) 한국관세학회 2009 관세학회지 Vol.10 No.4

This paper describes the characteristics and outline of Authorized Economic Operator(AEO) among countries-Korea, United States and European Union). Now, The Authorized Economic Operator(AEO) certificate is an internationally recognised quality mark which tells people that your role in the international supply chain is secure, and that your customs controls and procedures are efficient and compliant. With an AEO certificate you can be considered a secure trader and a reliable trading partner. But, For a Customs Simplification Authorized Economic Operator(AEO) certificate, you must fulfil the criteria for compliance, record keeping and solvency. For a security and safety, you must also fulfil the security criteria. In case of Korea, The member involved in AEO increased slowly after institution of new regulation for AEO. Thus, To be successful operation of Authorized Economic Operator(AEO) in Korea, the Korea's customs must support business community in terms of cost.

주요 국가별 병행수입 허용 기준에 관한 법ㆍ제도의 비교 및 시사점

정재우(Jae-Woo Jung),김규남(Kyu-Nam Kim),신범수(Beom-Soo Shin) 한국관세학회 2015 관세학회지 Vol.16 No.3

Parallel imports, also called gray market imports, are genuine goods produced under the protection of intellectual property rights(IPRs), sold into one market, and then brought legally into another market without the permission of the local intellectual property rights(IPR) owner. This paper provides parallel imports legal issues of United States of America, European Union and the republic of Korea under the IPR laws such as patent, trademarks, copyright and analyzes difference among countries. also, this study investigates the current status of parallel imports rule in the United States of America, European Union and the republic of Korea, and some implications through comparative legal analysis and concludes with the following recommendations. First of all, there is no need for the republic of Korea to legislate a law for activating parallel imports, and the republic of Korea makes well use of current resources(notice and announcement) enacted by Korea Customs Service. Second, the republic of Korea should install a information sharing organization through inter-governmental linkage to support parallel imports. Third, Korea’s rule and system on parallel imports is similar to that of United States of America. So the republic of Korea should learn how to operate from the United States.

유전성 혈관부종의 진단과 치료: 전문가 의견서

정재우 ( Jae-woo Jung ),박소영 ( So-young Park ),윤선영 ( Sun Young Yoon ),김건우 ( Gun-woo Kim ),손경희 ( Kyoung-hee Sohn ),강성윤 ( Sung-yoon Kang ),박혜정 ( Hye Jung Park ),강민규 ( Min-kyu Kang ),김주희 ( Joo-hee Kim ),박경희 대한천식알레르기학회 2022 Allergy Asthma & Respiratory Disease Vol.10 No.2

Hereditary angioedema (HAE) is a rare disease, but it severely interrupts daily life activities and can sometimes be life-threatening. Therefore, early diagnosis and prompt treatment of HAE attacks are critical. Physicians should be aware of how to diagnose and manage HAE to prepare not to miss a diagnosis when treating HAE patients. Physicians must also carry out tests to confirm the diagnosis of HAEs caused by C1 inhibitor deficiency (type 1) or C1 inhibitor dysfunction (type 2) in patients with recurrent angioedema. In addition, recent studies revealed another type of HAE which is not related to C1 inhibitor (normal C1 inhibitor HAE). Once HAE is confirmed, patients and their caregivers should be given with short-term and long-term treatment plans to relieve or prevent HAE attacks. HAE requires life-long measures, including psychological support for patients and self-management education. (Allergy Asthma Respir Dis 2022;10:80-88)

브렉시트(Brexit)에 따른 한·영 FTA 체결의 주요 논점과 한국의 대응 방안에 관한 연구

정재우(Jae-Woo Jung),홍재성(Jae-Sung Hong) 한국무역연구원 2016 무역연구 Vol.12 No.5

Brexit is the withdrawal of the United Kingdom (UK) from European Union (EU). Once United Kingdom leaves the EU, the Republic of Korea government has to negotiate with United Kingdom. So the purpose of this article is to suggest the some current issues concerning the Republic of Korea and United Kingdom’s next Free Trade Agreement after Brexit. The Republic of Korea’s exports to the United Kingdom totaled US$7.39 billion in 2015, a mere 1.4 percent of total exports. But United Kingdom’s market size is huge and very big. so the market of United Kingdom is very important. For this study, I investigated the current situation of international trade including outward Foreign Direct Investment and inward Foreign Direct Investment between the Republic of Korea and United Kingdom. and I analyzed the current status of Non-Tariff Barriers and Rules of Origin in United Kingdom.

만성 하기도 증상을 보이는 환자에서 진균 알레르기 검출을 위한 피부단자시험과 혈청 알레르겐-특이 IgE 검사 결과의 비교 분석

정재우 ( Jae Woo Jung ),전은주 ( Eun Ju Jeon ),이혜민 ( Hye Min Lee ),조성근 ( Sung Gun Cho ),강형구 ( Hyung Koo Kang ),곽희원 ( Hee Won Kwak ),송주한 ( Ju Han Song ),최재철 ( Jae Chol Choi ),신종욱 ( Jong Wook Shin ),김재열 ( Jae 대한천식알레르기학회 2009 천식 및 알레르기 Vol.29 No.1

Background: Skin prick tests (SPTs) has relatively a good correlation with allergen-specific IgE against house dust mites and pollens, whereas their correlation to fungi remains low. Objective: We aimed to investigate the prevalence and correlation between fungus-specific IgE and SPTs in patients with chronic lower respiratory symptoms. The difference between fungus-specific IgE-positive and -negative groups was also examined. Method: A total of 566 patients were included in this study, all of whom had either negative SPT results, positive for one or more fungi, or positive for dusts or mixed threshings. Result: SPTs and allergen-specific IgE tests for fungus were positive in 9.4% and 11.8% of the patients, respectively. The positive concordance rate for fungus-specific IgE with SPTs was 47%. The k statistic for the agreement between SPTs and fungus-specific IgE test was 0.349. In all populations negative for SPTs, total eosinophil counts, total IgE, ECP and bronchial reversibility were higher in the fungus-specific IgE-positive group. In the group that tested only positive for dusts or mixed threshings with SPTs, total IgE and bronchial hyperresponsiveness were higher in the fungus-specific IgE-positive group (P<.05). Conclusion: The rate of successful detection of fungus using SPTs was low compared to a fungus-specific IgE. Thus, fungus-specific IgE may be useful to detect fungus allergies in patients with chronic lower respiratory symptoms. (Korean J Asthma Allergy Clin Immunol 2009;29:33-38)

천식에서 비타민 D 평가

정재우 ( Jae Woo Jung ),강혜련 ( Hye Ryun Kang ) 대한천식알레르기학회 2016 Allergy Asthma & Respiratory Disease Vol.4 No.1