• Pediatric Infection and Vaccine
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• v.27 no.2
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• pp.134-139
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• 2020

Staphylococcus epidermidis is a part of the normal skin flora of humans. However, it can cause serious infections in people exposed to foreign bodies or in immunocompromised patients. A 13-year-old boy was hospitalized with fever and myalgia. Painful nodular lesions were detected on the scalp, arms, and legs. Pancytopenia and blasts were present in the peripheral blood. He was diagnosed with acute myeloid leukemia. Magnetic resonance imaging of the whole body showed multiple peripheral rim-enhancing, cyst-like lesions. Ultrasonography showed echogenic nodules inside the cystic lesions in the intramuscular space of the arms and legs. Therefore, cysticercosis was strongly suggested initially. However, an abscess was confirmed on sono-guided biopsy and S. epidermidis was isolated from a microbial culture of the tissue. We report a case of multiple disseminated lesions caused by S. epidermidis in a leukemia patient, initially mistaken for cysticercosis.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2018.10a
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• pp.176-177
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• 2018

In this paper, we discuss the abnormalities of flexion and extension in elbow disease in general. Flexion and extension represent arm flexion and extension while being set to 90 degrees. In this case, the angle of the arm is remarkably small, or the pain is accompanied by an abnormality in the elbow. We tested 100 elbow flexions and extensions at the age of 50 and calculated the number of people in each case. After that, patients with abnormalities in flexion and extension were classified and their treatment methods were presented. In this paper, we have developed a system for treating musculoskeletal disorders.

• Review of KIISC
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• v.29 no.4
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• pp.29-34
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• 2019

바이오인식기술은 사람의 지문 얼굴 홍채 정맥 등 신체적 특징(Physiological characteristics) 또는 음성 서명 자판 걸음걸이 등 행동적 특징(Behavioral characteristics)을 자동화된 IT 기술로 추출 저장하여 다양한 IT 기기로 개인의 신원을 확인하는 사용자 인증기술이다. 전통적으로 바이오인식기술은 출입국심사(전자여권, 승무원 승객 신원확인), 출입통제(도어락, 출입 근태관리), 행정(무인민원발급, 전자조달), 사회복지(미아찾기, 복지기금관리), 의료(원격의료, 의료진 환자 신원확인), 정보통신(휴대폰인증, PC 인터넷 로그인), 금융(온라인 뱅킹, ATM 현금인출) 등 다방면에서 폭넓게 보급되어 실생활 깊숙이 자리잡게 되었다. 2001년 미국의 911 테러사건으로 인하여 전 세계 국제공항 항만 국경에서 지문 얼굴 홍채 등 바이오정보를 이용한 출입국심사가 보편화됨과 동시에 ISO/IEC JTC1 SC37(Biometrics) 국제표준화기구를 중심으로 표준화가 급속도로 진행되어 왔다. 최근 들어 스마트폰 테블릿 PC 등 모바일기기에 지문 얼굴 등 바이오정보를 탑재하여 다양한 모바일 응용서비스를 가능하게 해주는 모바일 바이오인식 응용기술이 전 세계적으로 개발 보급되고, 삼성전자 페이팔 중심으로 바이오인식기술을 이용한 모바일 지급결제솔루션에 대하여 페이팔 구글 마이크로소프트 비자카드 마스터카드 등 미국 주도의 사실표준화협의체인 FIDO1), ITU-T SG17 Q9(Telebiometrics) 국제표준화기구를 중심으로 표준화가 진행되고 있다. 특히, 이러한 모바일 바이오인식기술은 스마트폰을 통한 비대면 인증기술 수단으로서 핀테크, 원격의료분야에서 중요한 요소기술로 작용될 전망이다. 본 논문에서는 이러한 바이오인식 표준화를 위한 국외 표준화 기구를 소개하고, 각 기구별 표준화 현황을 살펴본다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2018.05a
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• pp.188-192
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• 2018

Surgery to increase cerebral blood flow is one of the treatment methods of cerebral infarction. However, invasive methods, such as surgery, may result in postoperative complications or side effects. In order to supplement this invasive method, non-invasive devices have been introduced that use human blood pressure to pressurize the extremities to increase cerebral blood flow. However, the problem of poor speed and accuracy was raised. In this paper, the perfusion index of each arm was measured by applying pressure to both arms using Blood Oxygen Level Sensor to improve the accuracy of measurement and measurement time. The pressure applied to the arm by 75% of the moment when it falls to the leg and the pressure calculated by using the pressure value obtained from the arm. Like the existing blood pressure measuring cerebral blood flow increasing device, the blood flow can be increased by more than 20% and the measurement time can be shortened, so that it can be selectively used for the patient with cerebral infarction.

• Journal of the Institute of Electronics and Information Engineers
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• v.52 no.3
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• pp.206-212
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• 2015

This paper proposes the physical human-robot interaction method that controls the robot arms using ITO touch panel sensor as the skin of robot. To implement physical human-robot interaction, the method of using the force/torque sensor and the method of using tactile sensor created by arranging small element type of sensor have been studied. However, these sensors have the pros and cons in terms of price and performance. This study aims to demonstrate the economy of element type sensor and the accuracy of force/torque sensor through experiment by proposing the method of physical interaction using the touch panel as the skin of robot, and by constructing overall system. The experiment was carried out for the method of controlling the robot arm by installing end-effecter and the method of controlling robot arm by creating the gesture with reference point on the touch panel. Through this experiment, the possibility of teaching control using the touch panel was confirmed.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.22 no.8
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• pp.1083-1089
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• 2018

Surgery to increase cerebral blood flow is one of the treatment methods of cerebral infarction. In order to supplement this invasive method, non-invasive devices have been introduced that use human blood pressure to pressurize the extremities to increase cerebral blood flow. However, the problem of poor speed and accuracy was raised. In this paper, the perfusion index of each arm is measured by applying pressure to both arms using Blood Oxygen Level Sensor to improve the accuracy of measurement and measurement time. The pressure applied to the arm is calculated by using the pressure value obtained from the arm. Like the existing blood pressure measuring cerebral blood flow increasing device, the blood flow can be increased by more than 20% and the measurement time can be shortened, so that it can be selectively used for the patient with cerebral infarction.

• The Korean Journal of Quaternary Research
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• v.16 no.2
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• pp.23-31
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• 2002

The mammalian fossil remains of the Quaternary have been the crucial subjects for the archaeologist since long time. Because these materials have been used as a guide to environment and they help us to reconstruct a picture of past human subsistence concerning the hunting, dismembering and bone tools. The mammalians have distinctive characteristics and biotopes in order to adapt to environment change and modify even forms and number of bones. In this paper, we examine bone structures and numbers of several mammalians discovered in Paleolithic site during the Quaternary. We hope that this work could be attribute to more information about the relationship between Paleolithic men and the mammalians.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.20 no.10
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• pp.151-157
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• 2006

As people's living standard is being improved, human works are being replaced by robots. However, because most robots are used in process industry, fixed on the ground, we need to develop human robots that have wide applications. Currently many researches are being conducted on human robots with the object of replacing human works, but because of lack of relevant hardware, such robots are being applied limitedly to very simple tasks. To overcome the limitation, the present study developed a kinematical mechanism and a controller. Based on human kinematics, the shoulders and the arms were composed of master arms with 3 degree of freedom, and we reproduced motions similar to human ones through the characteristics of joint variables and experiment on the trajectory of the end effector.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.21 no.1
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• pp.291-299
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• 1996

A new identification method using a higher order multilayer neural network is proposed for identifying a complex dynamic system such as a robotic manipulator. The input torque data for learning of the neural identifier are generated for producing effective output trajectories by a minimization process of a specific performance index function which indicates the difference between the reference points and the present joint positions and their velocities of the robotic manipulator. Computer simulation results show that the proposed identification method is very effective for identifying the systems with complex dynamics and large moment of inertia.

• Tuberculosis and Respiratory Diseases
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• v.56 no.5
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• pp.532-535
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• 2004

Acute fulminating pulmonary edema was developed in 20 year old female following an acute airway obstruction due to a burglary attack on neck with bare hands. The pathogenesis of pulmonary edema is related to the alveolar and capillary damage induced by the severe negative pressure generated by attempting to inspire against the closed upper airway. This female responded to fluid restriction and oxygen supply. To our knowledge, pulmonary edema caused by man has never been reported in the literature.