• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 1993년도 Fifth International Fuzzy Systems Association World Congress 93
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• pp.917-920
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• 1993

Various forms of hardware alternatives exist for the implementation of fuzzy logic controllers. In this paper, we describe a systematic framework for realizing fuzzy heuristics on programmable-logic-devices. Our approach is suitable for the automated development of fuzzy logic controllers.

• 한국학교수학회논문집
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• 제16권4호
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• pp.675-694
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• 2013

본 연구의 목적은 교구 및 공학도구를 활용한 수학적 과정중심의 평가에 대한 교사들의 인식 및 평가 현황을 파악하고 교구 및 공학도구를 활용한 바람직한 수학적 과정 평가의 방향을 제시하는 것이다. 이를 위하여 수학 교과의 교수-학습 과정에서 교구 및 공학도구를 활용한 경험이 있는 서울, 경기 지역의 초 중등학교 수학교사 332명을 대상으로 설문조사를 실시하였다. 본 연구 결과, 수학적 과정중심 평가에 교구나 공학도구의 활용을 허용할 경우 교사들은 연구보고서, 프로젝트, 토론법 등의 다양한 대안 평가 방법을 보다 적극적으로 활용할 것으로 나타났다. 교구나 공학도구를 활용한 수학적 과정중심 평가 방법은 학생들의 학습상태를 보다 정확하고 종합적으로 파악하는데 기여할 수 있고, 동시에 수학적 과정을 강조한 교사의 수업 방법과 교수 활동의 개선을 위한 다양한 자료를 제공할 수 있다는 면에서 현장에서 대안적 평가 방법이 될 수 있다.

• 융합경영연구
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• 제10권4호
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• pp.13-24
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• 2022

Purpose: Although numerous research has covered content on trends in the adoption and use of wearable devices, their uses across several sectors such as healthcare, gaming, and fashion, there seems to be a considerable paucity with regard to empirical research focusing on the solutions for factors that undermine the effectiveness of wearable devices in healthcare. The present research aims to highlight what has been covered on wearable devices in healthcare while highlighting the limitations for future research. Research design, data, and methodology -The present authors conducted one of the most famous qualitative literature approach which has been called as PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analysis) statement. The selecting criteria for eligible prior studies was estimated by whether studies are suitable for the current research, identifying they are peer-reviewed and issued by notable publishers between 2017 and 2022. Result - Our results indicated that (1) Increasing the Affordability and User Education on Wearable Devices in Healthcare (2) Tackling the Technological Issues in Wearable Devices to Promote Healthcare Delivery (3) Solving Security and Privacy Issues Associated with Wearable Devices (4) Promoting Standards and Appropriate Regulations for Wearable Devices. Conclusion - To add, resolving the technological issues associated with wearable devices in healthcare will ensure that the new devices in the market will have longer battery life, multiple functions, and enhanced accuracy, thus ensuring that patients receive better care. Necessary interventions are taken on time to avoid any deleterious consequences such as proliferating mortality rates among the different patient groups.

• Smart Structures and Systems
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• 제8권5호
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• pp.449-470
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• 2011

During the last thirty years many structural control concepts have been proposed for the reduction of the structural response caused by earthquake excitations. Their research and implementation in practice have shown that seismic control of structures has a lot of potential but also many limitations. In this paper the importance of two practical issues, time delay and saturation effect, on the performance of controlled structures, is discussed. Their influence, both separately and in interaction, on the response of structures controlled by a modified pole placement algorithm is investigated. Characteristic buildings controlled by this algorithm and subjected to dynamic loads, such as harmonic signals and actual seismic events, are analyzed for a range of levels of time delay and saturation capacity of the control devices. The response reduction surfaces for the combined influence of time delay and force saturation of the controlled buildings are obtained. Conclusions regarding the choice of the control system and the desired properties of the control devices are drawn.

• 디지털산업정보학회논문지
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• 제15권2호
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• pp.43-52
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• 2019

The recent technological developments of smart devices, multiple services are provided to enhance the users' quality of life including smart city, smart energy, smart car, smart healthcare, smart home, and so on. Academia and industries try to provide the users with convenient services upon seamless technological research and developments. Also, whenever and wherever a variety of services can be used without any limitation on the place and time upon connecting with different types of devices. However, security weaknesses due to integrations of multiple technological elements have been detected resulting in the leakage of user information, account hacking, and privacy leakage, threats to people's lives by device operation have been raised. In this paper, safer communication framework is suggested by device control and user authentication in the mobile network environment. After implementations of registration and authentication processes by users and devices, safe communication protocol is designed based on this. Also, renewal process is designed according to the safe control of the device. In the performance evaluation, safety was analyzed on the attack of protocol change weakness occurred in the existing system, service halt, data leakage, illegal operation control of message, and so on, which confirmed the enhanced speed approximately by 8% and 23% in the communication and verification parts, respectively, compared to the existing system.

• 대한치과교정학회지
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• 제46권3호
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• pp.180-185
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• 2016

The incorporation of technological advances in the field of clinical orthodontics to increase treatment efficiency has led to the development of customized appliances (Insignia$^{(R)}$), archwires (Suresmile$^{(R)}$), and the production of devices to enhance tooth movement (Acceledent$^{(R)}$). This review presents a comprehensive study of the literature concerning these products, and analyzes the available evidence of their efficiency. To date, one pilot study has evaluated the efficiency of the Insignia$^{(R)}$ system, three retrospective studies have assessed the efficiency of the Suresmile$^{(R)}$ system, and a few Acceledent$^{(R)}$ reports have described its effect on treatment time. Critical appraisal of the reviewed papers revealed that the efficiency of the Insignia$^{(R)}$ system cannot be confirmed based on the available evidence, while the use of Suresmile$^{(R)}$ can reduce overall treatment time in simple cases. The acceleration of tooth movement by Acceledent$^{(R)}$ devices has not yet been confirmed.

• JSTS:Journal of Semiconductor Technology and Science
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• 제11권4호
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• pp.329-335
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• 2011

In this paper, a dual-band integer-N frequency divider is proposed for 2.4/5.2 GHz multi-standard wireless local area networks. It consists of a multi-modulus imbalance phase switching prescaler and two all-stage programmable counters. It is able to provide dual-band operation with high resolution while maintaining a low power consumption. This frequency divider is integrated with a 5 GHz VCO for multi-standard applications. Measurement results show that the VCO with frequency divider can work at 5.2 GHz with a total power consumption of 22 mW.

• 한국인공지능학회지
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• 제11권2호
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• pp.39-44
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• 2023

The creativity of thesis is that the significance of cyber security challenges in blockchain. The variety of enterprises, including those in the medical market, are the targets of cyberattacks. Hospitals and clinics are only two examples of medical facilities that are easy targets for cybercriminals, along with IoT-based medical devices like pacemakers. Cyberattacks in the medical field not only put patients' lives in danger but also have the potential to expose private and sensitive information. Reviewing and looking at the present and historical flaws and vulnerabilities in the blockchain-based IoT and medical institutions' equipment is crucial as they are sensitive, relevant, and of a medical character. This study aims to investigate recent and current weaknesses in medical equipment, of blockchain-based IoT, and institutions. Medical security systems are becoming increasingly crucial in blockchain-based IoT medical devices and digital adoption more broadly. It is gaining importance as a standalone medical device. Currently the use of software in medical market is growing exponentially and many countries have already set guidelines for quality control. The achievements of the thesis are medical equipment of blockchain-based IoT no longer exist in a vacuum, thanks to technical improvements and the emergence of electronic health records (EHRs). Increased EHR use among providers, as well as the demand for integration and connection technologies to improve clinical workflow, patient care solutions, and overall hospital operations, will fuel significant growth in the blockchain-based IoT market for linked medical devices. The need for blockchain technology and IoT-based medical device to enhance their health IT infrastructure and design and development techniques will only get louder in the future. Blockchain technology will be essential in the future of cybersecurity, because blockchain technology can be significantly improved with the cybersecurity adoption of IoT devices, i.e., via remote monitoring, reducing waiting time for emergency rooms, track assets, etc. This paper sheds the light on the benefits of the blockchain-based IoT market.

• 경영정보학연구
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• 제19권1호
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• pp.49-74
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• 2017

스마트 기기의 발전은 종사자들의 업무환경뿐만 아니라 생활에도 많은 영향을 주었다. 스마트 기기는 업무 방식이나 절차를 간편하게 만들었으며, 언제 어디서든 팀원들과 자료를 공유할 수 있게 하는 등 많은 이점을 가져다주었지만, 한편으로는 업무의 과부화, 역할 모호성 등 많은 문제점 역시 야기하였다. 따라서 본 연구에서는 업무 종사자들의 테크노스트레스가 업무 간 지속적인 기기활용에 미치는 영향에 대해 알아보고자 하였으며, 이 과정에서 스트레스 대처방식이 어떻게 매개하는지를 알아보고자 하였다. 본 연구에서는 317명의 중소기업 종사자들을 대상으로 구조방정식 모델을 검증하였다. 그 결과 테크노스트레스 선행요인 중 역할 모호성, 기술적 한계만이 테크노스트레스에 영향을 미치는 요인임을 알 수 있었고, 종사자들이 테크노스트레스를 느낄 때 정서 중심적 대처를 통해 스트레스를 해소한다는 것을 알 수 있었다.

• 대한의용생체공학회:의공학회지
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• 제29권6호
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• pp.415-430
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• 2008

The technologies in medical electronic implant(MEI) devices are developing rapidly, and already, there are various kinds of the MEI devices in the current medical equipments market. Recently, the global market scale of MEI devices have been increased about 13% year by year, and the import amount of MEI devices in Korea is increasing rapidly. In the near future, the demands of MEI devices will be magnificently increasing by the continuous development of the biomedical electronics devices which coupled with neural, brain and other organs will bring us to tremendous effects, such as providing new therapeutic solutions to patients, extension and saving human life, and an important clue of medical development. However, the investment of the research and the activity of developments in this field are still very weak in the Korea. Consequently, this paper introduces about the research trends of MEI devices, and technological problems those must be solved, and then concludes with the suggestions in order to be the leading country in this field.