• 한국컴퓨터정보학회논문지
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• 제25권10호
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• pp.261-268
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• 2020

본 논문에서는 장애 유형별 청소년 소프트웨어 교육을 위한 효과적인 소프트웨어 교육 모델을 제안한다. 이 소프트웨어 교육 모델은 4단계 과정으로 구성된다. 첫 번째 단계에서는 특수교육 교육과정에서 소프트웨어 교육 영역을 비교 분석한 결과를 기반으로 장애 유형별 청소년 소프트웨어 교육을 위한 교육과정을 도출한다. 두 번째 단계에서는 지적장애와 중복장애가 없는 시각, 청각, 지체 장애로 구분하여 장애 청소년의 효과적인 소프트웨어 교육을 위한 성취기준을 도출한다. 세 번째 단계에서는 도출한 성취기준에 따라 장애 유형별 장애 특성을 반영하여 코딩 로봇 알버트 기반의 언플러그드 컴퓨팅, 피지컬 컴퓨팅, 블록/텍스트 코딩으로 구성된 모듈식 교재를 개발한다. 네 번째 단계에서는 이 교재를 학교 현장에 적용하여 장애 청소년들이 일상생활에서 접하는 다양한 문제를 스스로 절차적이고 논리적으로 사고할 수 있도록 체험 중심의 소프트웨어 교육을 실시한다. 그리고 장애 청소년의 성취도 평가와 설문조사를 통한 결과를 분석하여 지적장애 82.3%, 시각장애 78.8%, 청각장애 90.9%, 지체장애 78.8%의 장애 청소년들이 '중' 수준 이상의 성취도를 달성하였음을 보인다. 이러한 결과는 본 논문에서 제안한 장애 청소년을 위한 소프트웨어 교육 모델이 장애 청소년의 컴퓨팅 사고력 향상에 매우 효과적임을 검증한 것이다.

• Journal of Pharmaceutical Investigation
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• 제22권2호
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• pp.133-137
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• 1992

A novel oral controlled release tablet which may offer more uniform drug level in the body than simple zero-order was developed. The tablet is composed of three layers; outer film layer, middle part compression-coated hydroxypropylmethylcellulose (HPMC) matrix layer, and inner core layer. Each layer contains nicardipine HCl as a model drug. In vitro dissolution test showed that the tablet released the drug in clear three steps; a rapid initial release, followed by a constant rate of release, and then a second phase of fast release of drug. The dissolution characteristics could be modified easily by changing the grade of HPMC, thickness of matrix layer, content of methylcellulose in matrix layer, content of active ingredient in each layer. The pH of dissolution medium did not affect the release profile. This three-step release system is expected to raise the blood concentration rapidly to effective level and to maintain effective blood level longer than simple slow-release systems.

• 해양환경안전학회지
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• 제5권2호
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• pp.1-14
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• 1999

To find characteristics and areas of greater risk of oil spill at the coastal waters in Korea, some of risk factors were analyzed with historical data of oil spill and marine traffic. As a result, it is characterized that frequency of oil spill is increasing year by year and greatest percentage of spill source is fishing boat. It is proposed that the ports of Ulsan, Yeosu, Incheon and Pusan will be designated as primary area of risk as they have a higher risk of oil spills and its response authority is required to maintain appropriate regional response capability for prompt and effective response to a future spill incident. In addition, the regional response equipments at Ulsan are examined under a assumption of a medium size spill and it is found that the use of chemical dispersant can be an alternative when mechanical containment and recovery is not feasible in this area, and the existing response equipments may be appropriate to address that size of spill. However, the response authority is required to maintain more numbers of stronger boom for unsheltered waters and more quantity of concentrate dispersant to disperse all spilled oils on the water, furthermore the response authority should be prepared for a possible future catastrophic spill with sufficient equipments.

• 한국위성정보통신학회논문지
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• 제12권1호
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• pp.18-21
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• 2017

In this paper we present IoT compliant HD Digital Signage Controller design using Raspberry Pi. Nowadays, the digital signage system have gained increasing popularity and rapidly growing communications medium that offers a wide range of exciting ways with customers, enhance brand awareness, increase sales and margin uplift by replacing the traditional static signage system. This paper presents a cost-effective IoT based HD Digital Signage Controller (DSC) using R-Pi computer that can use various kinds of displays in order to make the system as efficient and affordable as possible to provide advertisement or other relevant information to people in public areas. The system is designed in such way the information about surrounding related place is taken through sensors and directly uploaded to the internet, and thus can be accessed anytime and displayed on screens by using Raspberry Pi that serves as controller in the system. The design and implementation of the system developed by using python programming language and its hardware consists of sensors, Arduino, Raspberry Pi 3 model B board and the displays. The main targets of this study are build a cost effective Digital Signage system as well as broadcasting information at display contents in public areas and control those digital signs.

• Current Optics and Photonics
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• 제4권4호
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• pp.368-372
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• 2020

We report the terahertz time-domain spectroscopy (THz-TDS) of transdermal drug delivery in human skin. The time evolution of transdermal nicotine delivery in nicotine patches was assessed by detecting the transmission coefficient of sub-picosecond THz pulses and using a semi-analytic model based on the single-layer effective medium approximation. Using commercial nicotine patches (Nicoderm CQ^®, 7 mg/24 h), THz transmission coefficients were measured to quantitatively analyze the cumulative amounts of nicotine released from the patches in the absence of their detailed specifications, including multilayer structures and optical properties at THz frequencies. The results agreed well with measurements by conventional in vitro and in vivo methods, using a diffusion cell with high-performance liquid chromatography and blood sampling respectively. Our study revealed the ability of the THz-TDS method to be an effective alternative to existing methods for noninvasive and label-free assessments of transdermal drug delivery, showing its high promise for biomedical, pharmaceutical, and cosmetic applications.

• 아태비즈니스연구
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• 제15권1호
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• pp.225-237
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• 2024

Purpose - This study aims to explore the relationship between housing and land prices, with a specific emphasis on the impact of government policies on these factors such as land supply quantity and the ratio of residential land to total land supplied. The goal is to identify the most effective government intervention strategies for controlling both housing and land prices. Design/methodology/approach - Data from 70 primary and medium-sized cities in China spanning from 2003 to 2017 are utilized in this research. The analysis employs a panel vector autoregressive (PVAR) model, with a primary focus on examining the relationships among housing prices, land prices, and government intervention policies. Findings - Housing and land prices are influenced by various factors. Through impulse response analysis and variance decomposition, it is observed that both housing and land prices are predominantly influenced by their internal dynamics, with comparatively weaker effects attributed to policy interventions. Research implications or Originality - By investigating the impact of government policies on housing and land prices, This study establishes a foundation for effective price control measures. Our study advocates for a comprehensive examination of China's land supply mechanism to enhance understanding of the pathways through which government policies influence the markets.

• 디지털산업정보학회논문지
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• 제11권2호
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• pp.167-179
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• 2015

Recently the small and medium sized companies are more difficult to find people than large companies. So it is natural that having a great interest in leadership and its effects in organizations. This study examines how transformational leaders influence on empowerment, self-efficacy and job satisfaction in IT company. Investigating the effect between transformational leadership and job satisfaction in IT company may also be a tip of an understanding of how to manage employee turnover. Samples of 387 employees in IT companies were analyzed by structural equation modeling using Lisrel 8.7 and it showed acceptable data-fit of proposed model and supported all of research hypotheses. The empirical results indicated that transformational leadership significantly influences empowerment, self-efficacy and job satisfaction and also it confirmed that empowerment and self-efficacy are effective mediators linking job satisfaction. That is the findings reveal that transformational leaders boost employee's job satisfaction indirectly.

• Journal of Advanced Marine Engineering and Technology
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• 제18권5호
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• pp.78-87
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• 1994

In this paper design and implementation of ship's distributed remote control system using dual-microprocessor is presented for real time process. The proposed system is implemented with the single chip microprocessors in tightly coupled mode and results in speed up of $s_p$=1.74. Under the assumption that the nodes are interconnected in multidrop, the overall system performance such as average throughout-delay characteristics and effective throughput are analyzed using M/G/1 queneing model, and results show that the proposed node can be used in medium sized distributed monitoring and control system.

• 한국기술사회:학술대회논문집
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• 한국기술사회 1984년도 제14회 한일기술사 합동 심포지움 참관기
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• pp.77-82
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• 1984

The small group activities (SGA) was introduced into some of enterprises in Korea in 1967 and plant division, Saemaul undong Headquarters had encouraged Quality Control Circles (QCC) within the manufacturing corporations in assistance of central government. Registered small groups as of august 31, 1984 amounted up to 78,243 units and the number of members were 791,512. Meanwhile, small and medium industries have mostly introduced small group activities considerably later and less actively managed than large business. Main reasons for the less effectiveness of the activities are due to lack of management skills and less awareness of it from management and workers group. Effective small group activities are presumed to be successful only with labor management cooperation on the basis of human-oriented management philosophy. The small group activities are also prevalent in service sector. More derivative methods have been developed and more members are willingly participating in training programs. The small group which is basically a horizontal organization unit, promotes communication within the whole organization. In consideration of the social circumstances and traditions, the flexible model of the small group activities suitable to the corporate environment, will contribute to industrial development.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회 2001년도 추계학술대회 논문집
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• pp.362-365
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• 2001

Human, physical damage is happened frequently to consumer's safety accident by product defect on modern industrial society. Accordingly, advanced nation including the United States of America enforce product liability law and is protecting consumer more actively from danger of product defect. Our country(Korea) may enforce product liability law since July, 2002, and if business does not grope effective confrontation way about PL, capital strength weak smaller enterprise and venture business corporation's competitive power may affect much corporation's competitive power enfeeblement and survival. This research supplement based on induction and operating QMS in smaller enterprise essential factor that corporations must equip according to product liability law enforcement. And we present integration quality management system model of Product liability to do so that smaller enterprises may can cope effectively at force of Product liability law.