• Progress in Medical Physics
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• v.2 no.2
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• pp.129-139
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• 1991

The method of etching tracks in PN-3 dosimeter has been applied to tracks of recoil protons from a neutron source. Both the etch and the detection response of PN-3 has been studied as a function of etched-track diameters against various parameters. We could obtain very useful informations about charge, energy, and mass of particles and the relationship between the track etching rate and the track forming procedure in order to analyze the particle recorded in the solid state track detector. The best etching condition could be found by means of changing the etching circumstances for various energies and particles in order to detect the charged particle accurately. It could be influenced widely that the polymer plastic detector could develep the detecting technique for the low energy level neutron and could be used as a neutron dosimeter in the radiation field such as the nuclear power station, the medical institute and the nondtructive testing institute.

• Proceedings of the KAIS Fall Conference
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• 2011.05b
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• pp.667-670
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• 2011

본 연구는 일부지역 방사선(학)과 학생들을 대상으로 학과만족도 및 진로인식을 성별, 연령, 학년, 출신고교, 병역관계, 교육과정에 따른 차이를 분석하고자, 3년제 대학 방사선과 4곳과 4년제 대학교 방사선학과 3곳의 학생424명을 대상으로 하였으며, 결과는 다음과 같다. 방사선(학)과 학생들의 학년별 학과만족도는 1, 4학년이 다소 높았고 입학동기에 따른 학과 만족도는 본인의 관심, 적성으로 입학했을 시 만족도가 가장 높았다. 교과 만족도는 남자가 여자보다 높았으며 병역 미필이 군필보다 높은 것으로 나타났다. 진로선택 및 취업준비과정에 필요한 정보획득 경로로는 교수를 통해서가 가장 많았으며 선배, 친구가 그 뒤를 이었고, 취업을 위해 가장 중요하다고 생각하는 것으로서 외국어가 1순위였고 학점, 국가고시 성적이 그 뒤를 이었다. 교육과정에 따라 취업을 위해 가장 중요하다고 생각하는 사항에 대한 결과로는 외국어는 3년제, 4년제 순으로 인간관계는 4년제, 3년제 순 이었으며, 취업을 위해 가장 많은 시간을 할애하고 있는 것은 성적관리가 가장 많았고 어학, 자격증이 그 뒤를 이었다. 방사선(학)과 학생들의 희망 진로(취업)방향에 대한 결과로는 의료기관이 가장 많았으며 보건직 공무원이 그뒤를 이었다. 취업 시 고려사항으로는 적성이 가장 높았으며 급여, 안정성이 그 뒤를 이었다. 결론적으로 방사선(학)과 학생들의 학과만족도 및 진로인식은 성별, 연령, 학년, 출신고교, 병역관계, 교육과정에 따라 다소 차이가 있는 것으로 나타났다.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.12 no.6
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• pp.57-63
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• 2012

Effective use of stethoscope is very important for primary clinical diagnosis for the increasing cardiovascular and respiratory disease. This study developed the contact vibration sensor using piezopolymer film which minimizes the ambient noise, and signal processing algorithm was applied for providing better auscultation sounds compare to the existing electronic stethoscopes. Especially, low frequency heart sounds were acquired without distortion, and the quality of lung sounds were improved. Also, auscultating sounds could be transmitted using bluetooth, which made possible to be used for the u-healthcare environment. Results of this study, auscultation of heart and lung sounds, could be applied to the convergence industry of medical and information communication technology through remote diagnosis.

• Journal of radiological science and technology
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• v.30 no.3
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• pp.197-203
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• 2007

The education of radiological technology in Korea is provided lots of information but are low effectiveness of studying due to attach importance to traditional lecture preparing for the national exam of radiological technologist. With a critique about traditional education, a new method of teaching, PBL(Problem based learning) can meet with the workplace through problems and see the real world of occupation objectively taking part in a self-directed learning and cooperative discussion process. And when become a radiological technologist as a member of current society can build up solving problems and ability of communicative competence. We suggest problem-based learning for the education of radiological technologist, hope to see make for cultivating radiological technologist of ability and improve the quality of education.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.9 no.6
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• pp.1619-1624
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• 2008

Recently, In order to provide ubiquitous service, we develop each middleware and interface for sensors networks, RFID(Radio Frequency IDentification) and GPS(Global Positioning System). We use GPS for the location-based services, RFID for identifying the distribution logistics services, sensor networks for collecting the context data such as temperature, humidity, barometric pressure. Recently, there is increasing the need of integrated interface for using these sensor elements complexly in agriculture and livestock, construction, medical applications and, etc. This paper developments a integrated common interface for supporting efficiently process of sensing data using RFID, GPS and sensor network. This interface have the filtering function, parsing function, queuing function, interface management function, access function and, etc. We present the integrated frame structure combined with the collected context data in GPS, RFID and sensor networks and, support the open interface for providing complex ubiquitous application systems. Therefore, this interface will be efficiently used the system using RFID, GPS and sensor network, and supported many ubiquitous application services.

• Journal of Convergence for Information Technology
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• v.9 no.10
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• pp.9-15
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• 2019

Recently, in the field of next-generation e-commerce and finance, interest in blockchain-based technologies such as Bitcoin and Ethereum is great. Although the security of blockchain technology is known to be secure, hacking incidents / accidents related to cryptocurrencies are being issued. The main causes were vulnerabilities in the external environment, such as taking over login sessions on cryptocurrency wallets, exposing private keys due to malware infection, and using simple passwords. However, private key management recommends general methods such as utilizing a dedicated application or local backup and physical archiving through document printing. In this paper, we propose a white box password-based private key protection scheme. As a result of safety and performance analysis, we strengthened the security against vulnerability of private key exposure and proved the processing efficiency of existing protocol.

• Journal of the Korean Applied Science and Technology
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• v.37 no.6
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• pp.1798-1805
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• 2020

This study attempted to numerically verify specific effects on skin condition improvement by measuring and comparing changes in skin conditions such as pores, wrinkles, and sebum of LED masks for beauty devices with low output among light sources. 18 healthy women (4 weeks in the control group and 4 weeks in the experimental group) were conducted once a week for 8 weeks. As a result of measuring the skin condition of pores, wrinkles, and sebum, it was confirmed that the skin condition improved significantly as the LED irradiation progressed, and the difference between the groups by measurement period of the experimental group and the control group also showed significant differences in pores, wrinkles, and sebum (p< .001, p<.05). This is meaningful in that it can be presented as clinical information and quantitative data by preparing continuous data in an academic sense by proving the effect of improving the LED mask as a beauty device. It is also suggested that in the future, follow-up studies to prove more effective skin improvement will be conducted.

• The Journal of the Korea Contents Association
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• v.22 no.7
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• pp.670-675
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• 2022

In the era of the 4th industrial revolution, everything is data-centric. The type and amount of data may be central, and new data may be required in special circumstances. As 3D printers are used in various fields, there are fields that are newly challenged. In particular, in the medical field, new attempts that have not been considered before are taking place. This paper is a study to enable research in fields that require physical properties of the human body. In the meantime, research using human organs has mainly used the materials made of silicon. We measure the physical properties of the human body from cadavers, apply these characteristics to develop new materials, and develop artificial organs with 3D printers. Using the artificial organs made in this way, you can practice surgery with a robot that removes kidney stones. In this paper, we would like to introduce a series of research processes to develop advanced materials similar to human organs.

• The Journal of the Convergence on Culture Technology
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• v.8 no.5
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• pp.749-754
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• 2022

High adhesion and water resistance of the skin surface are required for wearable and skin-attachable electronic patches in various medical applications. In this study, we report a stretchable electronic patch that mimics the drainable structure pattern of the hexagonal channels of frog's pads and the sucker of an octopus based on carbon-based conductive polymer composite materials. The hexagonal channel structure that mimics the pads of frogs drains water and improves adhesion through crack arresting effect, and the suction structure that mimics an octopus sucker shows high adhesion on wet surfaces. In addition, the high-adhesive electronic patch has excellent adhesion to various surfaces such as silicone wafer (max. 4.06 N/cm²) and skin replica surface (max. 1.84 N/cm²) in dry and wet conditions. The high skin-adhesive electronic patch made of a polymer composite material based on a polymer matrix and carbon particles can reliably detect electrocardiogram (ECG) in dry and humid environments. The proposed electronic patch presents potential applications for wearable and skin-attachable electronic devices for detecting various biosignals.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.23 no.2
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• pp.201-208
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• 2023

Visually impaired people have difficulty accessing medical services and drug information, and it is not easy for them to take the correct drugs. A health law has been established to deal with this, but the plans are not unified and not applicable to all over-the-counter medicines. Therefore, we planned an application that provides instructions for taking general medicines using image recognition technology, bar code, and QR recognition technology for visually impaired people who are in the blind spot of taking general medicines. In this research, we will optimize the camera shooting environment standards and UI and UX screens for image recognition for the visually impaired, and improve the accessibility for the visually impaired to make it more convenient. If you can apply the results of your research to an application and provide it, it will help people with visual impairments learn the correct way to take over-the-counter medicines.