• 실천공학교육논문지
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• 제8권1호
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• pp.15-21
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• 2016

창의적 문제해결 이론인 트리즈는 기계나 전기, 전자와 같은 전통적인 공학 분야뿐만 아니라 IT 분야에서도 널리 활용되어 좋은 성과를 거두고 있기 때문에, 최근 많은 대학들이 트리즈를 정규 교과목으로 개설하고 있다. 특히 트리즈의 40가지 발명원리는 초보자도 비교적 쉽게 배울 수 있는 창의적 발상 도구이자 매우 강력한 문제해결 도구이지만, 실제 문제 해결에 제대로 활용하는 것은 생각처럼 쉬운 것이 아니다. 발명원리가 창의적 문제해결을 위한 강력한 도구가 되기 위해서는 발명원리에 대한 흥미 유발을 통해서 학습자가 반복해서 활용해 보도록 교육하는 것이 중요하다. 따라서 본 논문에서는 일상에서 쉽게 접할 수 있는 명함들 속에 숨어있는 다양한 발명원리를 소개하고, 발명원리를 활용한 명함 제작을 통해서 발명원리에 대한 흥미를 유발하도록 교육하는 방법에 대해 제안하였다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제6권5호
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• pp.1421-1444
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• 2012

Mobile devices such as Android devices are emerging as a convenient client computing device with mobility and context-sensing capability. However, the computing power and hardware resource of the devices are limited due to their small form-factor. Consequently, large-scaled applications could not be deployed on these devices. Nonetheless, if the large-scaled applications are deployed and executed on the devices, high performance of the applications cannot be guaranteed. To remedy the limitation in terms of performance, it is inevitable to let some heavy-weight functionality executed on the server side and let a client application invoke the functionality in the server. To realize this kind of mobile applications, we adopt well-defined architecture design principles; being thin-client, being layered with Model-View-Controller (MVC), and being balanced between client side and server side. By adopting the principles, we propose a unique, ideal and practical architecture for mobile applications, called balanced MVC architecture. By considering the principles, key design considerations of realizing balanced MVC architecture lie in functionality partitioning. Hence, we define key criteria of determining the degree of performance. And, we define a method to design a balanced MVC architecture which embodies functionality partitioning for high performance, and a simulation-based evaluation method of balanced MVC architectures.

• International Journal of Computer Science & Network Security
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• 제22권10호
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• pp.315-321
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• 2022

Many students with disabilities and special needs are enrolled in higher education, which substantiated the need for research regarding faculty members' knowledge and willingness to implement supportive strategies in higher education in Saudi Arabia. This study explored Saudi university faculty members' knowledge and willingness to apply UDL (Universal Design for Learning) principles in their teaching practice. Surveys were used for data collection for this descriptive research. The findings indicated faculty members felt that they were knowledgeable regarding UDL and were willing to use UDL principles in teaching their students. Furthermore, there were no statistically significant differences between faculty members' knowledge levels regarding UDL based on their current position and years of experience. The findings indicated there was a significant relationship between gender and knowledge, with males having a significantly higher mean knowledge, although further analyses revealed it was a small effect. Finally, the results suggest more years of experience are related to greater willingness to use UDL principles, and this is particularly true for those in a lecturing position. These findings could be helpful, particularly for the Ministry of Education in Saudi Arabia to shed light on faculty members' UDL knowledge. Further research is needed to substantiate the findings.

• International Journal of Computer Science & Network Security
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• 제21권4호
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• pp.284-288
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• 2021

Human-computer interaction is a discipline concerned with the design, evaluation, and implementation of interactive systems for human use. In this paper we suggest designing a smart deaf emergency application based on Human-Computer Interaction (HCI) principles whereas nowadays everything around us is becoming smart, People already have smartphones, smartwatches, smart cars, smart houses, and many other technologies that offer a wide range of useful options. So, a smart mobile application using Text Telephone or TeleTYpe technology (TTY) has been proposed to help people with deafness or impaired hearing to communicate and seek help in emergencies. Deaf people find it difficult to communicate with people, especially in emergency status. It is stipulated that deaf people In all societies must have equal rights to use emergency services as other people. With the proposed application the deafness or impaired hearing can request help with one touch, and the location will be determined, also the user status will be sent to the emergency services through the application, making it easier to reach them and provide them with assistance. The application contains several classifications and emergency status (traffic, police, road safety, ambulance, fire fighting). The expected results from this design are interactive, experiential, efficient, and comprehensive features of human-computer interactive technology which may achieve user satisfaction.

• 정보교육학회논문지
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• 제22권6호
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• pp.639-649
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• 2018

피지컬 컴퓨팅은 도구를 활용한 구체적 조작 활동으로 컴퓨터와 실제 세계간의 상호작용을 직접 관찰할 수 있어, 초등학교 학생들이 컴퓨터 과학의 개념과 원리를 쉽게 이해할 수 있도록 도움을 줄 수 있다. 본 연구에서는 초등학생들이 보유한 스마트폰을 피지컬 컴퓨팅 도구로 활용할 수 있는 안드로이드 어플리케이션을 설계하고 개발한다. 안드로이드 스마트폰의 센서를 활용하여 데이터를 수집하는 클래스와 수집된 데이터를 컴퓨터로 전송하여 프로그래밍 학습에 활용할 수 있도록 하는 클래스를 설계하고 어플리케이션을 개발한다. 본 연구에서 개발하는 피지컬 컴퓨팅 교육용 어플리케이션은 다른 피지컬 컴퓨팅 도구의 구비가 어려운 환경에서 학생 자신의 스마트폰을 통해 컴퓨터 과학의 원리를 더욱 쉽게 이해할 수 있는 도구로 활용될 수 있다.

• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2009년도 학술대회
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• pp.227-231
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• 2009

The aim of the research is to focus on the cognitive principles and to achieve human-level intelligence in referring context based browser history and the Windows history. One of the major problems faced by today's computer users is insufficient and single exclusive context based reference of the browser history and the Windows history. Today we search for the browser history and Windows history in different places even though the context is the same. For e.g., When working on a research paper or preparing a business presentation, a user may require to refer many web sites on the internet and various documents on the local computer. The browser can provide only time based history. The windows document history is also time based and limited to list only few documents. Hence, we propose a tool "Cognitive Based Context Aware Reference History Management Tool" which helps to access the exclusive reference of context and time based history in one place. The tool also proposes to store image history with urls and classifies images of a specific topic accessed in different time, bookmarks management and cross browser history management. These features are very useful as we can access all related documents (doc, docx, ppt, pptx, pdf, txt, and html), web pages, images and bookmarks in one place. The tool uses the cognitive principles like classification and association to achieve the purpose.

• 한국컴퓨터정보학회논문지
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• 제21권3호
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• pp.105-111
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• 2016

Circulating various pieces of unlawful information that violate the law by leaking personal information or circulating violent/sexual materials or malignant programs in the cyberspace is unlawful, and blocking this beforehand is an important duty of the state. Preceding discussions on the legal restriction of unlawful information in the cyberspace have mostly been focused on the criminal responsibilities and civil responsibilities of information communications service providers, but this study has approached it with emphasis on the issue of police responsibility for the exercise of police authority to block unlawful information. It is because the principles of police responsibility to determine the target of police authority to block unlawful information provide the standards for the interpretation of existing laws and regulations and function as legislative principles for the enactment of new laws and regulations to prevent risks in the cyberspace.

• International Journal of Computer Science & Network Security
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• 제21권12호
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• pp.219-222
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• 2021

The study shed the light on the information required by Governance Principles and Corporate Social Responsibilities of human resources department from the point deans' perspectives of BA colleges during the discussion the publication of studies that academic members earlier submitted in many journals as authors of similar studies talking about business schools and CSR in Saudi Arabia universities. The study sample was the deans of business schools in northern border university and interviews were used to collect data. Findings showed that CSR in business colleges within an integrated set of research products in the human resource that he owns, support the mechanisms of social services from a purposeful pioneering and creative perspective. In addition, the success of business administration colleges in preparing these cadres depends on the college's senior leadership represented by its dean and its administrative policy to motivate academic staff and students to develop the CSR and governance.

• 한국의학물리학회지:의학물리
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• 제32권1호
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• pp.1-17
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• 2021

The evolution of X-ray computed tomography (CT) has been based on the discovery of X-rays, the inception of the Radon transform, and the development of X-ray digital data acquisition systems and computer technology. Unlike conventional X-ray imaging (general radiography), CT reconstructs cross-sectional anatomical images of the internal structures according to X-ray attenuation coefficients (approximate tissue density) for almost every region in the body. This article reviews the essential physical principles and technical aspects of the CT scanner, including several notable evolutions in CT technology that resulted in the emergence of helical, multidetector, cone beam, portable, dual-energy, and phase-contrast CT, in integrated imaging modalities, such as positron-emission-tomography-CT and single-photon-emission-computed-tomography-CT, and in clinical applications, including image acquisition parameters, CT angiography, image adjustment, versatile image visualizations, volumetric/surface rendering on a computer workstation, radiation treatment planning, and target localization in radiotherapy. The understanding of CT characteristics will provide more effective and accurate patient care in the fields of diagnostics and radiotherapy, and can lead to the improvement of image quality and the optimization of exposure doses.

• 한국임상수의학회지
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• 제16권1호
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• pp.75-79
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• 1999

Magnetic resonance imaging (MRI) is an imaging technique used to produce high quality images of the inside of the animal body. MRI is based on the principles of nuclear magnetic resonance (NMR) and started out as a tomographic imaging technique, that is it produced an image of the NMR signal in a thin slice through the animal body. The animal body is primarily fat and water, Fat and water have many hydrogen atoms. Hydrogen nuclei have an NMR signal. For these reasons magnetic resonance imaging primarily images the NMR signal from the hydrogen nuclei. Hydrogen protons, within the body align with the magnetic field. By applying short radio frequency (RF) pulses to a specific anatomical slice, the protons in the slice absorb energy at this resonant frequency causing them to spin perpendicular to the magnetic field. As the protons relax back into alignment with the magnetic field, a signal is received by an RF coil that acts as an antennae. This signal is processed by a computer to produce diagnostic images of the anatomical area of interest.