• Asian Journal for Public Opinion Research
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• 제5권2호
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• pp.143-174
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• 2018

A cultural exchange program widens the horizons of students. It gives them the opportunity to associate with other societies and learn their cultures at the same time. This program also serves as a training ground where students enhance their skills, acquire learnings, and gain experiences that will help them in their future careers and make them more competitive than others. Hence, the objective of this study is to come up with an output from a set of guidelines established and gathered from the different "work and travel" experiences of the participants. This study adopted the phenomenological and was conducted in places that are relatively quiet for recording, and suitable and convenient for both the researchers and participants. The researchers gathered data through in-depth interviews of samples gathered through snowball sampling. Cellphones were used to record interviews. At the end of the thematic analysis of information, the researchers came up with three major categories which included: (1) 'having the opportunity to know the industry well and improve one's capability', 'undergoing different cultural exchange experiences for better development', and 'being able to practice intercultural immersion'. Some of the researchers' recommendations would be to institute a feedback mechanism such as personal interviews, monitoring visits, etc. and use the output, a set of guidelines, that would help the future 'work and travel' participants to prepare and anticipate the program they would undergo.

• 한국광학회지
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• 제6권4호
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• pp.259-265
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• 1995

국내 민수용으로 유통되고 있는 20여종의 무반사 안경렌즈들을 선정하여 광학적 특성을 분석하였다. 분광광도계를 사용하여 측정한 반사특성과 투과특성을 렌즈의 굴절력, 각 무반사층들 및 렌즈기층에 의한 영향과 연결시켜 분석하였다. 흡수단 근방에서의 겉보기 흡수스펙트럼은 기층물질에 따라 결정되며 400-700nm의 파장대역에서 대부분의 시료들의 겉보기 흡수스펙트럼과 반사스펙트럼은 강한 양의 상관관계를 보여준다. 예외적으로 기층에 의한 흡수가 큰 렌즈들은 상관관계가 약해지며 이와 같은 기층에 의한 흡수는 무반사 특성에 부정적인 효과를 가진다. 또한 국내에서 제작되는 $SiO_2/TiO_2/SiO_2/ZrO_2/Cr$ 다층박막층을 c-Si 기층위에 성장시키면서 각 단계별로 ex-situ 분광타원해석법으로 분석하여 $TiO_2$ 박막과 $ZrO_2$ 박막의 조밀도가 80% 정도에 불과하며 박막이 두꺼원 짐에 따라 박막에 수직한 방향으로 균일하지 않음을 확인하였다. 마지막으로 실시간, in-suti 측정을 바탕으로하여 엄밀한 사양이 요구되는 다층박막, 초격자박막 등을 재현성있게 성장시킬 수 있는 가능성에 대해 토의하였다.

• Journal of Power Electronics
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• 제16권3호
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• pp.1226-1235
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• 2016

For wearable health monitoring systems, a fundamental problem is the limited space for storing energy, which can be translated into a short operational life. In this paper, a highly efficient active voltage doubling rectifier with a wide input range for micro-piezoelectric energy harvesting systems is proposed. To obtain a higher output voltage, the Dickson charge pump topology is chosen in this design. By replacing the passive diodes with unbalanced-biased comparator-controlled active counterparts, the proposed rectifier minimizes the voltage losses along the conduction path and solves the reverse leakage problem caused by conventional comparator-controlled active diodes. To improve the rectifier input voltage sensitivity and decrease the minimum operational input voltage, two low power common-gate comparators are introduced in the proposed design. To keep the comparator from oscillating, a positive feedback loop formed by the capacitor C is added to it. Based on the SMIC 0.18-μm standard CMOS process, the proposed rectifier is simulated and implemented. The area of the whole chip is 0.91×0.97 mm², while the rectifier core occupies only 13% of this area. The measured results show that the proposed rectifier can operate properly with input amplitudes ranging from 0.2 to 1.0V and with frequencies ranging from 20 to 3000 Hz. The proposed rectifier can achieve a 92.5% power conversion efficiency (PCE) with input amplitudes equal to 0.6 V at 200 Hz. The voltage conversion efficiency (VCE) is around 93% for input amplitudes greater than 0.3 V and load resistances larger than 20kΩ.

• 한국정보처리학회논문지
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• 제4권2호
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• pp.409-429
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• 1997

소프트웨어를 개발하고 운영하는 동안 직면하는 문제들은 소프트웨어나 하드웨어 또는 운영의 결함에 기인한다. 이들의 다양성 문제, 문제들을 조정하고 체계적으로 원인을 규명하기 위한 문제 발생의 규명 및 수정 작업을 중심적으로 관리하는 시스템이 요구 되고 있다.본 논문에서는 소프트웨어 개발 수명 주기(Softwate Development Life Cycle :SDIC)에서 획득할 수 있는 결함 데이터(Fault Data) 프로세스 데이터(Precess Data) 프로덕트 데이터(Preduct Data)를 수집하고 분석하기 위한 소프트웨어 문제 보고서 (Software Change Report:SCR)를 처리하는 SPR/SCR 관리시스를 개발하고 적용하였다. SPR/SCR 관리 시스템의 목적은 4가지가 있다. 첫째로 모든 소프트웨어 결함들을 문서 화하고, 수정하며 무시않는다. 둘째로 SPR의 타당성에 대해 평가된다. 셋째로 SPR의 진행 상태를 개발자 또는 사용자에게 피드백한다., 넷째로 소프트웨어 품질과 신뢰성을 예측하고 측정하기 위한 기본 자료를 제공한다. 이들 목표는 SRE/SCR 관리시스템의 적용에 의해 충족시킬 수 있다. 또한 소프트웨어 신뢰성의 달성 비욜, 테스트의 종료기준, 릴 리 즈 시기의 예측, 효율적인 개발 관리에 반영될 수 있다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2009년도 춘계학술대회 논문집
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• pp.97-100
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• 2009

육상의 지표면 파라미터는 기후와 주로 연관되어 있으므로 육상 관측 위성 영상에 나타나는 많은 물리적 과정은 계절 주기에 따른 시간적 변화를 보인다. 본 연구에서는 계절에 따라 변하는 물리적 과정을 포함하는 시계일 원격 탐사 영상 시리즈를 어댑티브 피드백 시스템에 의해 복원한다. 이 시스템에서는 계절적 변화를 추적하기 위하여 하모닉 모델을 사용하고 수치 영상 모형의 공간적 의존성을 나타내기 위해 깁슨 랜덤 필드를 사용한다. 복원과정을 통하여 구성된 하모닉 모델과 어댑티브 계수에 의해 지표면 연속적 변화를 감시할 수 있다. 본 연구에서는 1996년부터 2000년까지 한반도로부터 관측된 AVHRR 영상 시리즈를 일주일 간격으로 정적 합성하여 NOVI 시리즈를 구하고 하모닉 모델을 사용하는 어댑티브 복원 시스템을 이 NDVI 시리즈를 적용하여 한반도 지표면 변화를 추적하였다. 연구 결과는 하모닉 어댑티브 복원시스템이 거의 실시간으로 지표면 변화를 감시하는데 매우 효과적인 수단이 될 것이라는 잠재성을 보여준다.

• 한국전문물리치료학회지
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• 제18권4호
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• pp.19-25
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• 2011

The aims of this study were to investigate the correlation between the electromyographic (EMG) activity of the abductor hallucis (AbdH) and the amount of pressure measured by a pinch gauge (PG), and to compare the EMG activity of AbdH and the pressure measured by the PG during short foot (SF) exercise in subjects with pes planus and in subjects with a neutral foot alignment. Fourteen subjects were recruited for this study (pes planus group=7; neutral foot alignment group=7). A surface EMG was used to collect AbdH activity, and a PG was positioned under the first metatarsophalangeal joint to measure the pressure produced by the first metatarsal head during the SF exercise. The AbdH activity and the pressure measured by the PG showed a positive good correlation (r=.80, p<.05). The EMG activity of the AbdH and the pressure measured by the PG were significantly lower for subjects with pes planus than for subjects with a neutral foot alignment (p<.05). Based on these findings, the PG can be recommended as an effective instrument for evaluating the performance of the AbdH. It may also be beneficial for monitoring how well the SF exercise is performed, and for providing visual feedback to patients with pes planus during SF exercise in a clinical setting.

• 한국임상약학회지
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• 제23권3호
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• pp.256-268
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• 2013

Objective: To study the attitudes and awareness of healthcare professionals (physicians, pharmacists, nurses and others) toward the Pharmacovigilance system and experience for adverse drug reactions (ADRs) from a Single University Hospital in Deajeon. Methods: A survey was performed using a structured questionnaire involving 360 health-care professionals at the hospital between $1^{st}$ November and $16^{th}$ November, 2012. Results: Sixty-five percent (n=235) of all respondents were experienced incidences of ADRs for their patients and 55.8% (n=201) knew the ADR Spontaneous Reporting System in the hospital. However, three-fourths (n=273, 75.8%) of respondents did not know the existence of the Korean Association of Regional Pharmacovigilance Centers (KARP) and 61.7% (n=222) were unaware of the obligation of ADR report from KFDA in cases of serious ADRs. About 83% (n=299) answered that the electronic ADR report system of the hospital was helpful while their work and most (n=336, 93.3%) agreed on the necessaries of the promotion and education about ADR. Conclusion: Seventy-five percent (n=271) of respondents wanted to continue the work for evaluation and feedback for ADRs reported in the hospital. However, the barriers to reporting ADR were; inconvenient ADR reporting system and the lack of time to report ADRs. This study showed that the easier ADR reporting system and education and promotion about ADRs for health-care providers are needed to improve the ADR reporting.

• Smart Structures and Systems
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• 제13권2호
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• pp.219-233
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• 2014

In a companion paper, Pasala and Nagarajaiah analytically and experimentally validate the Adaptive Length Pendulum Smart Tuned Mass Damper (ALP-STMD) on a primary structure (2 story steel structure) whose frequencies are time invariant (Pasala and Nagarajaiah 2012). In this paper, the ALP-STMD effectiveness on a primary structure whose frequencies are time varying is studied experimentally. This study experimentally validates the ability of an ALP-STMD to adequately control a structural system in the presence of real time changes in primary stiffness that are detected by a real time observer based system identification. The experiments implement the newly developed Adaptive Length Pendulum Smart Tuned Mass Damper (ALP-STMD) which was first introduced and developed by Nagarajaiah (2009), Nagarajaiah and Pasala (2010) and Nagarajaiah et al. (2010). The ALP-STMD employs a mass pendulum of variable length which can be tuned in real time to the parameters of the system using sensor feedback. The tuning action is made possible by applying a current to a shape memory alloy wire changing the effective length that supports the damper mass assembly in real time. Once a stiffness change in the structural system is detected by an open loop observer, the ALP-STMD is re-tuned to the modified system parameters which successfully reduce the response of the primary system. Significant performance improvement is illustrated for the stiffness modified system, which undergoes the re-tuning adaptation, when compared to the stiffness modified system without adaptive re-tuning.

• 정신신체의학
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• 제24권1호
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• pp.61-65
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• 2016

다양한 정보통신기술(Information & Communication Technology, ICT)들이 정신건강 영역에서 성공적으로 활용되고 있다. 특히 모바일 애플리케이션은 효과적인 ICT 중 하나이며, 스마트폰이 널리 보급된 이후 여러 앱들이 개발되고 있다. 모바일 기반 정신건강 개입은 치료 접근성 향상, 실시간 모니터링을 통한 증상 및 일상 활동의 손쉬운 확인과 같은 여러 장점이 있다. 치료 경과에서의 더 나은 추적 관찰, 개별화된 피드백과 향상된 이동성으로 인하여 환자들의 순응도를 향상시킬 수도 있다. 하지만 정신건강과 관련된 모바일 기술에는 전기통신 오류, 데이터 안전성 문제, 개인 정보 유출 같은 기술적인 애로사항들이 제한점으로 존재한다. 따라서 기술의 개발과 제공 과정에서 이에 대한 충분한 고려가 필요하다. 무엇보다도 정신건강 전문가들이 근거에 기반을 둔 경험들을 결합하고, 양질의 임상적 수준을 보장하면서 개발과정에 적극적으로 참여해야 할 것이다.

• International Journal of Advanced Culture Technology
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• 제9권3호
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• pp.8-15
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• 2021

This study was conducted with the purpose of exploring the dilemma and improvement strategies for the integrated management of extracurricular education programs at Duksung Women's University. The research method was finally composed of a procedure with a meeting of experts based on the procedure of collecting and analyzing the previous research literature. As for the contents of the study, the dilemma of the integrated management of the extracurricular education program at Duksung Women's University was presented first. Examples of dilemmas include difficulties in organizing and operating programs from the perspective of a roadmap customized for each grade level, difficulties in establishing a foundation for balanced mapping of core competencies and cultivating programs, difficulties in managing the performance of regular program monitoring and feedback improvement, and activating the linkage system between subjects and extracurricular education programs difficulties and difficulties in establishing a support system for the operation of the extracurricular education integrated management system were reflected. In addition, a strategy to complement and improve this dilemma was presented in a linkage. As a result of the study, the integrated management dilemma of Duksung Women's University's extracurricular education programs needs to be resolved in the long term through formal infrastructure such as external expert advice and expert exchange, and the development and use of related manuals should be considered aspects were analyzed. In addition, the content of this study was analyzed not only in the educational case of Duksung Women's University, but also in that it deals with cases that can be usefully referenced in most universities that develop and operate extracurricular education programs. Finally, this study presents an evidence-based practices that can be referenced in promoting the integrated management of extracurricular education programs in university sites, and the position and identity of extracurricular education throughout the university curriculum. It is judged that the significance and expected effect of the study can be obtained in that it provides an opportunity to improve from the management point of view.