고밀도파장분할다중화를 위한 광필터에 관한 연구

김선엽 남서울대학교 2007 남서울대학교 논문집 Vol.13 No.3

ABSTRACT : The recent, a large capacity of communication is required in order to it is in proportion to capacity of information communication increase and to satisfy a demand because of the demand about Internet, a multimedia service of Video of internet protocol (VoIP), Audio/Video streaming. DWDM technique has been emerged as the method of solving it without additional optical fiber network building and high-speedequipment. Therefore this thesis proposed the optical filter of fiber/multilayer slab coupled structure combining it to multilayer slab waveguide by polishing the cladding of one side of fiber to design the optical filter having these functions.

2002 년도 한국정책학회 춘계세미나 : 지역복지에 있어서의 민간복지자원 활용방안

김선엽 한국정책학회 2002 한국정책학회 세미나 Vol.2002 No.1

관절 가동운동(mobilization)이 관절 감수기(joint receptors)에 미치는 영향

김선엽 한국전문물리치료학회 1996 한국전문물리치료학회지 Vol.3 No.2

영평 베스트 10 / 류승완 <부당거래> : 탈법과 편법이 판치는 서바이벌 게임

김선엽 한국영화평론가협회 2012 映畵 評論 Vol.24 No.-

What to Expect For the Retail CBDC-Evidence from E-payment and Financial Stability in China and Korea-

김선엽 한국동북아경제학회 2022 동북아경제연구 Vol.34 No.3

This study explores what can be expected for launching the Central Bank Digital Currency (CBDC) by analyzing relationships between e-payments and financial stability. Most studies analyzed the impact of CBDC on financial stability focusing on a single nation’s economy. Few studies prospected the impacts of CBDC on the financial stability by comparing two nations, cultivating different payment systems. This study uses e-payment as a proxy for CBDC to derive implications on retail CBDC and financial stability. This study is significant in that it seeks to prospect the effect of CBDC on financial stability by taking a counterfactual approach. This paper first identifies the causal correlation between e-payment and financial stability in China and Korea using a VAR model. Then, it employs a LSDV model to measure the effect of latent variables on financial stability in China and Korea when the coefficient between e-payment and financial stability is fixed equal. I use the quarterly panel data of capital adequacy ratios, e-payments, stock prices, and treasury yields spanning from 2014:1Q-2022:2Q. The results of the Granger test suggest that there is no Granger cause relationship between e-payments and BIS capital ratios. Meanwhile, the results of LSDV suggest that e-payments and financial stability are positively correlated and it is statistically significant. The positive correlation appeared to be larger when the variables associated with the financial stability are controlled. The results also show that the Korea-specific component is larger than the China-specific component implying that financial stability in Korean economy is more affected by the latent factors other than e-payment than in China. Yet, owing to the negative effect of COVID-19 on the banking sector, the correlation between e-payment and the financial stability was negative in the COVID sample. The risk premium is found to have a negative correlation with financial stability and more negatively affect the Korea-specific component than the China-specific. It can be inferred from these findings that the introduction of retail CBDC would more positively affect financial stability in China than in Korea.

지방도시 거주 노인들의 재활서비스에 대한 요구 조사 : 안동시 거주 노인들을 중심으로

김선엽 한국전문물리치료학회 1997 한국전문물리치료학회지 Vol.4 No.3

Stabilizer or multiplier : The manifestation of theoretical policy effect on the house prices

김선엽 주택도시보증공사 2023 주택도시금융연구 Vol.8 No.1

This paper employs Jorda’s (2005) local projection (LP) methodology to assess the impact of macro- economic policies on apartment prices pre-and post-COVID-19. It contemplates the economic linkages to estimate the multiplier effects of the monetary and fiscal shocks as they are transmitted to the apartment prices through the so-called COVID proxies. This paper introduces a reduced number of economic proxies that substantially explain the impact of the COVID-19 pandemic on aggregate production in South Korea: unemployment; oil prices; uncertainties. I use these COVID proxies that are exogenously given, as a set of channels through which the transmission paths of the macroeconomic policies linked towards the apartment prices are misaligned with the desired paths. The LP model provides a reasonably good explanation to the varying effects of financial shocks pre-and post-COVID-19 by predicting the state-dependent impulse responses. The impulse responses suggest that the monetary multipliers on apartment prices are larger and more significant during the COVID-19 crisis than during normal times, while it is vice versa in terms of fiscal multipliers.

ACT 기반 집단프로그램이 초등학교 고학년 아동의 분노 감소에 미치는 영향

김선엽,박선영,이윤희,강미숙,양승지 인문사회 21 2020 인문사회 21 Vol.11 No.2

As the problem of school violence of upper grade students in elementary school is getting serious, various approaches for cognitive behavior therapies on anger reduction are being tried. This study focused on the effectiveness of anger reduction by ACT program for upper grade students in elementary school. 8 sessions including mindfulness, meditation, acceptance of experience, value finding, and committed behavior were implemented on experimental group for 4 weeks and the results showed that the level of anger was decreased significantly in the experimental group. Intervention of ACT program during the upper grades could help obtaining psychological flexibility for preventing early adolescent behavior problems. Finally, this study has a limitation that it is difficult to apply it to lower grade students since the program was originally targeted for upper grade students. For the future study, it suggests that if ACT program for students in various developmental ages is attempted, a wider range of research can be applied. 초등학교 고학년 시기의 학교폭력문제가 점차 심화되면서 분노를 대상으로 한 다양한 인지행동치료적 접근들이 시도되고 있다. 본 연구에서는 초등학교 고학년을 대상으로 ACT 기반 집단프로그램이 초등학교 고학년 아동의 분노 감소에 미치는 영향을 검증하고자 했다. 실험집단에 마음 챙김 명상, 경험의 수용, 가치 찾기 및 전념 행동 등의 8회기 프로그램을 4주간 진행하여 집단프로그램의 효과를 검증한 결과 실험집단에서만 분노의 정도가 유의하게 감소하였다. 고학년 시기에 ACT 기반 집단프로그램의 개입은 심리적 유연성 획득을 도와 초기 청소년기 문제행동 예방의 전략이 될 수 있을 것이다. 끝으로 본 연구는 초등학교 고학년 아동을 대상으로 하여 저학년 아동들에게 확대하여 적용하기는 어렵다는 제한점이 있다. 향후 연구에서 다양한 발달시기의 아동들을 대상으로 한 ACT 기반 집단프로그램이 시도된다면 보다 폭넓은 연구의 적용이 이뤄 질 수 있을 것이다.

등속성(isokinetic) 운동을 이용한 근력 평가

김선엽,Kim, Suhn-Yeop 대한물리치료과학회 1994 대한물리치료과학회지 Vol.1 No.1

As a new concept of resistive exercise, isokinetic exercise was developed during the late 1960's. In isokinetic exercise, the subject works at a fixed speed aganist variable and totally accommodating resistance. During isokinetic exercise the resistance accommodates the external maintains maximum output throughout the full range of motion. The maximum torque during isokinetic movements is a measure of the muscular force applied in dynamic conditions.

수용전념치료에 기반한 심화된 불면증 인지행동치료와 불면증 인지행동치료 비교의 예비연구

김선엽,신윤정,박보미,박선영,신정원 대한수면연구학회 2021 Journal of sleep medicine Vol.18 No.2

Objectives: Cognitive behavioral therapy for insomnia (CBT-I) is the first line treatment for insomnia. However, many patients remain with sleep disturbances even after undergoing CBT-I, and those with short sleep durations have shown fewer gains. Acceptance and commitment therapy (ACT) is one of the third wave of behavioral therapies, and it is useful in helping patients get flexibility of mind. Therefore, we incorporated its components into CBT-I, came up with an advanced CBT-I program that involves cognitive behavior therapy based on ACT, and examined its efficacy in comparison to that of CBT-I. Methods: Patients with chronic primary insomnia were recruited at the memory center of CHA University Hospital from June to August 2020. To examine the efficacy of advanced CBT-I compared to that of CBT-I, the patients (n=16) were assigned to two groups (CBT-I: n=6; advanced CBT-I: n=10). The patients in each group were treated for 4 weeks (8 sessions). The quality of sleep, severity of insomnia, sleepiness, depression, anxiety, acceptance, efforts to sleep, and dysfunctional beliefs concerning sleep were assessed with self-report questionnaires. Results: The severity of insomnia, quality of sleep, depression, anxiety, acceptance, efforts to sleep, and dysfunctional beliefs concerning sleep improved after both CBT-I and advanced CBT-I treatment. Conclusions: This study examined the efficacy of advanced CBT-I in improving the severity of insomnia, sleep quality, and other symptoms related to sleep. The results suggest that components of ACT were useful for insomnia.