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Performance Monitoring Study of Unglazed Transpired Solar Air Heating Module (무창 기공형 태양열 공기 난방 모듈 성능 모니터링 연구)

  • Kang, Eun-Chul;Hyun, Myung-Taek;Lee, Euy-Joon
    • Journal of the Korean Solar Energy Society
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    • v.22 no.1
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    • pp.67-72
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    • 2002
  • Solar Air Systems (SAS) have unique advantages for space heating and tempering ventilation air. Air, unlike water, needs no protection against freezing nor are leaks damaging to the building structure or its contents. In contrast to glazed collector, unglazed steel solar collector may have higher efficiencies over glazed flat collector due to the absence of the glass. Therefore, the monitoring of SAS is so important to evaluate actual performance of SAS for right applications. This study is to provide a testing method with a movable test cell developed in KIER to evaluate the thermal performance of SAS based on international standard method ASHRAE 93-86, "Method of Testing to Determine the Thermal Performance of Solar Collectors". The monitoring tool used advanced technique LabVIEW 6i with portable notebook computer. Sample results have been obtained to access the performance of a reference and a target SAS module. The process and tool introduced here could be used to provide a performance verification data for future implementation study applications.

Evaluation of Pharmacy Students' Attitudes Toward Pharmaceutical Care and Career Choices Following Interdisciplinary Inpatient Clerkships (약대생의 약료에 대한 인식과 실무실습-진로선택의 상관성에 관한 연구)

  • Shin, Sooyoung;Lee, Sukhyang
    • Korean Journal of Clinical Pharmacy
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    • v.24 no.2
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    • pp.80-89
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    • 2014
  • The study objectives were to investigate the attitude of Ajou University pharmacy students toward pharmaceutical care and to identify their perceived barriers to its provision. Secondarily, their career choices and influential factors for career decision were assessed. Method: A cross-sectional survey of Ajou University pharmacy students in all professional years was conducted in May 2014. Results: Over 2 weeks, a total of 123 students participated in the study (100% response rate). All respondents agreed that pharmaceutical care is the right direction for the provision to be headed and that pharmaceutical care will improve patient health. However, professional year was inversely associated with the degree of positive attitude toward pharmaceutical care. Highly perceived barriers to pharmaceutical care included poor image of pharmacist's role in society (67%) and lack of access to the patient medical record in the pharmacy (65%). Work environment, benefits, and salary were top three influential factors for career plans, and $6^{th}$ year students considered salary most important. Patient-oriented practices (hospital and community pharmacy) were the most preferred career choices among $6^{th}$ year students. Conclusion: Pharmacy clerkships appeared to have a positive influence on career choices of those students. Efforts should be exerted to improve pharmacy clerkships and to promote pharmaceutical care.

Performing angiographic intervention with a femoral entry shield: Element analysis microscopy and hand dose reduction for interventional radiologist

  • Law, Martin;Ng, Dickon H.L.;Yoon, Do-Kun;Djeng, Shih-Kien
    • Nuclear Engineering and Technology
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    • v.53 no.4
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    • pp.1318-1322
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    • 2021
  • To unveil and delineate the elements applicable to the radiation protection of a femoral entry shield, calculate its mass attenuation coefficient, and demonstrate its dose reduction efficacy for interventional radiologist performing transarterial embolization (TAE) of ruptured hepatocellular carcinoma (rHCC). The lead equivalency of the shield was firstly validated. Electron microscopy was used to confirm the femoral entry shield being lead-free and to analyze the elemental content, with which the mass attenuation coefficient of the shield was calculated. An adult phantom, irradiated at the upper abdomen to simulate the TAE of rHCC, was used together with a dosimeter attached to the palm of a hand phantom. The dose rates at the hand phantom were measured, with the rHCC clinical protocol, without and with the femoral entry shield placed over the right femoral access site of the adult phantom. Without using the shield, the average hand dose rate was measured to be 0.325 µSv/sec. While using the shield, it was determined to be 0.110 µSv/sec. There was significant 66% dose reduction to the hand dose of IRs performing angiographic intervention with the femoral entry shield.

The Resisting Body: Figurative Painting as a Means to Register Social Protest in Malaysian Art (저항하는 몸: 말레이시아 미술에서 사회적 저항의 수단으로서 형상회화)

  • Fan, Laura
    • The Journal of Art Theory & Practice
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    • no.8
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    • pp.185-215
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    • 2009
  • In Malaysia, figurative painting has increasingly become a means for artists to pose questions about presumptions of power and assumptions of history. The body, its potentially breached boundaries and defenses, forms an integral component of the battle for political influence. The degree of control over one's own and other people's bodies has become a measuring stick to determine the power of potential political leaders. Anxiety about boundaries and access to powerful bodies is intertwined with the questions of who has the right to hold power; the relevance of moral bodies and of what comprises an ideal self or selves. These questions are raised in intriguing ways in contemporary Malaysian art. While eschewing a direct take on current politics, Malaysian artists have increasingly turned to the body to address issues in Malaysian history, culture and the distribution of power. This paper will explore some works by three artists in particular, Wong Hoy Cheong, Nadiah Bamadhaj and Ahmad Fuad Osman use the figure to problematise dominant narratives in Malaysian history. Their work variously challenge political, racial and gender hierarchies and in so doing, reveal them as social constructions.

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A Study on the Non-use Factors of the Visually Disabled in Public Libraries (시각장애인의 공공도서관 비이용 요인에 관한 연구)

  • Oh, Seon-Kyung;Lee, Jee-Yeon
    • Journal of the Korean Society for Library and Information Science
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    • v.45 no.3
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    • pp.141-162
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    • 2011
  • In Korea, public libraries lack the adequate services for the visually disabled, and therefore the visually disabled rarely use public libraries. This study aims to secure the information accessibility and usage rights for the visually disabled, and to suggest solutions in order to vitalize their use of public libraries. For this aim, the researcher investigated the reasons why the visually disabled did not use public libraries, extracted the correlations between their awareness of public library services and their actual use, and then tried to propose how to secure their right to use libraries and access to information and knowledge and improve their use of public libraries.

Features of Administrative Liability for Offenses in the Informational Sphere

  • Iasechko, Svitlana;Kuryliuk, Yurii;Nikiforenko, Volodymyr;Mota, Andrii;Demchyk, Nadiia;Berizko, Volodymyr
    • International Journal of Computer Science & Network Security
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    • v.21 no.8
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    • pp.51-54
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    • 2021
  • The article is devoted to the study of the features of administrative liability for offenses in the informational sphere, the definition of the concept and features. Based on the examples of implementation of instruments of European legislation into the national legal system and examples of national legal practice, the authors have identified the features of informational and legal sanctions aimed at restricting the rights of access of subjects to information, prohibiting them to disseminate certain information, restricting the rights to disseminate certain information, and suspending informational activities. It has been substantiated that the administrative liability for informational offenses as a protective legal institution is created to contribute to the solution of such acute problems of legal support of human and society interests in the new informational dimensions.

Examination of the Application Directions of Digital Health for the Enjoyment of Healthcare Rights by People with Disabilities (장애인 건강권 향유를 위한 디지털 헬스 적용 방향 고찰)

  • Hee Young Jung
    • Journal of Information Technology Services
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    • v.22 no.6
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    • pp.115-132
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    • 2023
  • This study aimed to propose application directions for South Korea's digital health policy by conducting a literature review, data analysis, and examining foreign cases. The objective was to enhance the healthcare rights of individuals with disabilities, considering the potential expansion of the digital health policy. The findings indicate that digital health holds significant promise in improving mobility and accessibility for the healthcare rights of disabled individuals in Korea. However, addressing the digital gap is crucial for achieving smooth utilization. To ensure seamless use of the digital health system, it is imperative to attain digital inclusion, encompassing digital technology, connectivity, and accessibility. Additionally, establishing governance for digital health and expanding infrastructure for affordable access to high-quality internet are essential. Despite the study's limitations arising from relying on literature research, it is anticipated that the findings can serve as foundational data for preemptive responses and provide insights into the direction of the government's digital health policy to enhance the healthcare rights of individuals with disabilities.

Suggestion for Objective Evaluation of Comparative Pulse Diagnosis

  • Jun-Sang Yu
    • Journal of Pharmacopuncture
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    • v.27 no.1
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    • pp.21-26
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    • 2024
  • Objectives: Pulse is a method of Korean medicine diagnosis and is an important clue to detect the organs, nature, and progress of the disease. Pulse examination is included in the basic examination of Korean medicine doctors, but there is no standardized method for diagnosing pulse although the types and methods of the pulse taking are briefly described in the literature, making it difficult to spread the examination method. In this regard, I would like to propose an objective evaluation method. Methods: Although the importance of pulse examination and the method of pulse examination are known in the literature, it is difficult for undergraduate students or inexperienced Korean medicine doctors to access it, so in this paper a method of marking the size of the pulse power in the blank space for objective evaluation was devised and presented. Results: The size of the pulse power should be indicated using the 1-cell, 3-cell, or 5-cell method according to the left and right wrists and the cun, guan and chi on both sides. Conclusion: The method of pulse diagnosis is an important diagnostic method as a verification process for making a Korean medical diagnosis. The remaining Korean medicine diagnostic methods, including pulse diagnosis, also need to undergo objectification. It is believed that the objectification of these diagnostic methods will lead to an improvement in the treatment rate of Korean medicine.

Modal tracking of seismically-excited buildings using stochastic system identification

  • Chang, Chia-Ming;Chou, Jau-Yu
    • Smart Structures and Systems
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    • v.26 no.4
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    • pp.419-433
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    • 2020
  • Investigation of structural integrity has been a critical issue in the field of civil engineering for years. Visual inspection is one of the most available methods to explore deteriorative components in structures. Still, this method is not applicable to invisible damage of structures. Alternatively, system identification methods are capable of tracking modal properties of structures over time. The deviation of these dynamic properties can serve as indicators to access structural integrity. In this study, a modal tracking technique using frequency-domain system identification from seismic responses of structures is proposed. The method first segments the measured signals into overlapped sequential portions and then establishes multiple Hankel matrices. Each Hankel matrix is then converted to the frequency domain, and a temporal-average frequency-domain Hankel matrix can be calculated. This study also proposes the frequency band selection that can divide the frequency-domain Hankel matrix into several portions in accordance with referenced natural frequencies. Once these referenced natural frequencies are unavailable, the first few right singular vectors by the singular value decomposition can offer these references. Finally, the frequency-domain stochastic subspace identification tracks the natural frequencies and mode shapes of structures through quick stabilization diagrams. To evaluate performance of the proposed method, a numerical study is carried out. Moreover, the long-term monitoring strong motion records at a specific site are exploited to assess the tracking performance. As seen in results, the proposed method is capable of tracking modal properties through seismic responses of structures.

CAS-based Security System for IPTV (CAS기반 IPTV 보안 시스템)

  • Kim, Dae-Youb;Ju, Hak-Soo
    • The KIPS Transactions:PartC
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    • v.15C no.4
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    • pp.221-226
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    • 2008
  • IPTV is well known services of TPS (Triple play service). Since TPS supplies the bundle service, service providers can supply low-priced services for their subscribers. To supply high quality contents stably, it is an essential requirement to make payment for the services. According to the type of services, either CAS or DRM is used to protect the pay-contents service. Also IPTV uses or will use these security systems to protect the service. In this paper, we will describe security problems when a IPTV service provider chooses either CAS or DRM, and then propose a new security system to solve the problems.