일란성 쌍생아에서 발병한 Cornelia de Lange 증후군

정승연,김종인,김승일,곽영헌 최신의학사 1983 最新醫學 Vol.26 No.8

노인주간보호시설 건축의 공간구성계획에 관한 연구

정승연,전명현 대한건축학회 2000 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.20 No.2

This study aims to present a space programing and a architectural planning for adult day care center. The results of this study are. as follows, The basic parts in adult day care center are composed a ADL room, occupational therapy room, physical therapy room, bath room, kitchen, dinning roam and office. Based on the basic space programing of adult day care center, its minimal area is 293.9㎡. In consideration of the respective spaces' connections of adult day care center, the circulation planning of adult day care center formed individually is proposed.

점적관개용 디스크 여과기의 디스크 홈 단면 형상에 따른 수두 손실 특성 분석

정승연,최원,최진용,김마가,이윤희 한국농공학회 2018 한국농공학회논문집 Vol.60 No.2

Drip irrigation system is a low energy cost method which can efficiently save and supply water by dropping water slowly on the crop’s root zone during crop growth. In the drip irrigation system, disk filters take an important role to physically remove impurity (inorganic and suspended organic) particles present in agricultural water which can cause emitter clogging. For the purpose, both top-and-bottom surfaces of the disk are grooved in micron size flowing from outside to inside. However, many congested flow paths in disk filter media incur higher head loss of inflow water resulting in relatively decreasing velocities depending on operation time than sand and mesh filters. Therefore, it is important to optimize the structure of disk filter in micro irrigation system. The head loss of disk filter media takes also charge of more than 60 % of total head loss in whole disk filter. This study is to find the appropriate cross-sectional shape of the disk groove to minimize the head loss by executing the experiment. The experiment used three disk filters that have similar filter body but have a half-elliptic and two kinds of triangular cross sections. The experimental results showed that the disk filter with half-elliptic cross sections of disk grooves have less head loss than the disk filter with regular triangular one.

Neurodevelopmental Outcomes According to Brain Injury Patterns in Neonates with Postasphyxial Hypoxic Ischemic Encephalopathy

정승연,최서열,장영표,이영석 대한신생아학회 2017 Neonatal medicine Vol.24 No.1

Purpose: To investigate the relationship between brain injury patterns on magnetic resonance imaging (MRI) and neurodevelopmental outcomes in neonates with postasphyxial hypoxic ischemic encephalopathy (HIE). Methods: Clinical characteristics and brain MRI findings of 49 term neonates with postasphyxial HIE were retrospectively reviewed. Brain injury patterns in MRI were classified into five categories, along with evaluation of the posterior limb of internal capsule (PLIC). Neurodevelopmental outcomes were assessed by neurological examination combined with the Bayley Scales of Infant Development II between 1 and 2 years of age. Results: Twenty-three neonates (46.9%) showed abnormal brain MRI finding associated with poor neurodevelopmental outcomes (odds ratio 9.7, 95% confidence interval 1.4, 67.4, P=0.022). The following injury patterns were seen in MRI: abnormality in the basal ganglia-thalamus (BGT) in 4 neonates (17.4%), watershed predominant (WP) pattern in 5 (21.7%), extensive global injury (EGI) in 3 (13.0%), lesions restricted to periventricular white matter (LPWM) in 4 (17.4%), and perinatal arterial ischemic stroke (PAIS) in 2 (8.7%). Additionally, 6 neonate (26.1%) showed lesion in the PLIC. Neonate with BGT and EGI injury patterns showed worse neurodevelopmental outcomes than those with WP and LPWM patterns (P<0.05). Neonate with PLIC lesion also showed poor outcomes (100%). Conclusion: Abnormal brain MRI findings in neonates with postasphyxial HIE were associated with the poor neurodevelopmental outcomes. BGT, EGI and PLIC patterns of injury are expected to have worse outcomes than white matter predominant injury patterns such as those in the WP and LPWM.

일본의 특허유통시장 활성화에 관한 연구

정승연 한일경상학회 2009 韓日經商論集 Vol.42 No.-

In recent times, we see diffusion of open innovation which is characterized as incorporation of technologies and their cooperative development in many countries. It results in the growing significance of patent circulation market. This paper aims to examine the Japanese strategy of expanding patent circulation market growing the last decade and illuminate its outcomes and limitations. Results of this paper is as follows. Above all, two projects led by the Japanese government, choice of TLO(technology licensing organization) and the progress of promotion enterprise for patent circulation, helped to expand the quantitative size of Japanese patent circulation market during the last decade. However, as the outcome of the project of expanding patent circulation market lessened during the last few years, we could recognize the limits of such government-led project. In order to encourage the further growth of patent circulation market in Japan, the growth of the private market for patent circulation is required. Finally, this paper generates two implications for Korea. First, the Korean government should reduce too excessive government intervention and provide further discretion for TLO and universities. Second, the government must actively intervene in premature patent circulation market. The government should reduce its roles in areas of calling for innovation of the private sector for university-firm cooperative projects but concentrate its policy efforts in certain areas for reforming relevant markets like patent circulation.

일본의 지적재산권 활용에 관한 연구

정승연 한일경상학회 2007 韓日經商論集 Vol.38 No.-

A Study on Exploitation of Intellectual Property Rights in Japan: On Relating to Japanese Economic System

일본 쌀 산업의 구조조정에 관한 연구 - 생산과 유통구조를 중심으로 -

정승연 한국외국어대학교 국제지역연구센터 2007 국제지역연구 Vol.10 No.4

This paper aims to illuminate features of structural adjustment of the Japanese rice industry and its future challenge after the opening of its rice market in 1995. Main findings of this paper are as follows. First, the Japanese rice industry maintains its autonomous system in which its farmers and farmer association can determine the size of production. Second, Japan try to disclose the distribution process in the distribution structure of rice and maintain its autonomous system operated by the private sector. Those findings helps to generate two lessons as follows: (1) farmers in Korea needs to actively participate in the structural adjustment of rice industry given the strong leadership of the government, (2) the regulatory intervention of the government needs to be diminished in the distribution and its distribution system needs to modified to allow greater freedom and variety. 본 논문의 연구과제는 1995년의 쌀 시장 개방 이후에 전개된 일본 쌀 산업의 구조조정의 특징 및 과제를 밝히고, 이러한 분석으로부터 한국의 쌀 산업이 얻을 수 있는 시사점을 도출하는 것이다. 본 연구를 통해서 얻은 주된 결과는 다음과 같다. 첫째, 일본 쌀 산업은 농업인과 농업인단체가 주체적으로 생산조정을 실시하는 자율적 시스템을 지향하고 있다는 점이다. 둘째, 쌀의 유통구조에 있어서 일본은 유통과정을 투명하게 공개하면서 그 대부분을 민간부문에 맡기는 자율적 시스템을 지향하고 있다는 점이다. 이상의 분석 결과로부터 한국은 쌀 산업 구조조정이라는 과제에 대해 정부가 리더십을 확보하고 농업인들이 적극적으로 참여해야 한다는 점, 그리고 쌀의 유통에 대한 정부의 관리를 축소하고 유통구조를 보다 자유롭고 다양하게 변모시킬 필요가 있다는 점 등을 교훈으로 얻을 수 있을 것이다.

한국과 일본의 對중국 물류정책 및 기업전략 비교분석

정승연,김웅희 한국외국어대학교 국제지역연구센터 2010 국제지역연구 Vol.13 No.4

본 연구에서는 다음의 세 가지 연구목적에 초점을 맞춰서, 한국과 일본에 대한 비교연구를 실시하였다. 우선 정부 레벨에서 對중국 한ㆍ일 물류정책의 특징을 파악한 후, 양국 정책의 차이점을 밝히는 것이다. 다음으로 기업 레벨에서는 한ㆍ일 물류기업의 중국 진출 실태 및 사례에 대해 살펴본 후, 이로부터 한ㆍ일 물류기업의 기업전략 상의 공통점과 차이점을 규명하는 것이다. 끝으로 본고에서 실시한 한ㆍ일 비교연구로부터 한국 정부와 기업에 대한 시사점을 도출하는 것이다. 본 연구를 통해서 얻은 주된 결론은 다음과 같다. 첫째, 한ㆍ일 정부의 물류정책은 중국을 중시한다는 점에서 유사하지만, 일본의 물류정책이 ASEAN과의 협력도 중시한다는 점에서 보다 폭이 넓다. 둘째, 중국 물류시장에서 한국기업에 비해 일본기업이 보다 다양한 종합물류서비스를 제공하고 있으며, 보다 광범위한 물류네트워크를 확보하고 있다. 결국 한국 물류기업은 중국에서 국적을 초월한 기업간 전략적 제휴에 보다 적극 나서야 한다. This paper compared the cases of Korea and Japan on the basis of three research goals as follows. Above all, this paper tries to illuminate differences in logistics policies for China in Korea and Japan at governmental levels after understanding their distinct features. Then, after investigating investments of Korean and Japanese firms in China and their specific cases at corporate levels, this paper tries to illuminate similarities and differences of corporate strategies in Korean and Japanese logistics firms. Finally, this paper attempts to derive implications for Korean governments and firms through the comparative study. Main results of this study are as follows. First, even though logistics policies of Korean and Japanese government are similar in admitting the significance of China, Japanese policies are broader by admitting the significance of cooperating with ASEAN nations. Second, Japanese firms provide more diverse entire logistics services and also retained wider logistics networks than Korean counterparts in Chinese logistics markets. Thus, Korean logistics firms need to pursue to establish strategic cooperation with other foreign firms in China.

혈청내 HBV-DVA와 Pre-S2항원 및 항체 검사에 의하여 B형 간염 바이러스의 감염성과 B형 간염 백신 접종후 생기는 면역반응에 대한 평가: 특히 신생아에 있어서

정승연 가톨릭대학 (가톨릭신학대학) 대학원 1989 가톨릭大學醫學部 論文集 Vol.42 No.4

천식 완해기 유지치료로서 AF-365의 임상적 효과

정승연,이재성,최준용,이건영,정희재,이형구,배현수,정승기,Jeong, Seung-Yeon,Lee, Jae-Sung,Choi, Jun-Yong,Lee, Kun-Young,Jung, Hee-Jae,Rhee, Hyung-Koo,Bae, Hyun-Su,Jung, Sung-Ki 대한한방내과학회 2005 大韓韓方內科學會誌 Vol.26 No.1

Backgrounds : Gamichungsangboha-tang extract has been known to improve pulmonary functions and quality of life within four weeks of treatment. Cessation of treatment causes recurrence of symptoms and regression of pulmonary function and poorer quality of life. Long-term herbal therapy is difficult to maintain due to economic burden and other reasons. AF-365 is made with reduced dosage of Gamichungsangboha-tang extract. This study was designed to evaluate the effectiveness of AF-365 for maintenance therapy. Materials and Methods : The subjects consisted of 27 patients with asthma who had beed treated with AF-365 for four weeks. First, patients were treated with Gamichungsangboha-tang extract for four weeks. Second patients stopped herbal medicine for four weeks and after that they took AF-365. Pulmonary function test(PFT) was checked before and after four weeks of treatment. Quality of Life Questionnaire for Adult Korean Asthmatics(QLQAKA) was checked every two weeks from the beginning. The effects of AF-365 were analysed throughout the last four weeks. Results : Treatment of AF-365 for four weeks resulted in significant increase in PEFR%, QLQAKA. The QLQAKA of the step3, step4 group classified by Global initiative for asthma(GINA) showed significant improvement, and the QLQAKA of the step2 group showed no significant difference. In step3 group, PEFR% increased significantly. Conclusions : This study supports a role for AF-365 in maintenance of pulmonary function and quality of life, especially in persistent symptomatic asthmatics.