• 감성과학
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• 제19권4호
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• pp.111-118
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• 2016

당뇨병 환자들은 말초신경 손상의 합병증으로서 이상감각과 통증을 느낄 수 있는데 이는 날카로운 느낌, 차갑고 시린 느낌, 무딘 느낌, 살갗이 벗겨진 듯한 예민한 느낌, 화끈거리는 느낌, 따끔하고 가려운 느낌 등 다양하게 나타날 수 있다. 이를 진단하기 위해서 여러 선별검사와 전기생리학적 검사를 활용할 수 있다. 본 연구에서는 신경병통증척도와 미시간 신경병증 선별도구 및 신경전도검사를 통해 이상감감/통증을 호소하는 당뇨병 환자 11명과 호소하지 않는 당뇨병 환자 10명 간에 차이점 및 특징을 분석하였고, 세부 감각양상과 신경전도검사 지표간 상관성을 분석하였다. 그 결과 이상감각/통증을 호소하는 환자군에서 신경병통증척도와 미시간 신경병증 선별검사의 점수가 통계적으로 유의하게 높았고 신경전도검사에서는 주로 정중신경 운동신경과 비골신경이 의미 있는 기능 변화를 보였다. 세부 감각양상에 따른 신경전도검사 지표는 주로 정중신경 운동신경, 후경골신경, 장딴지신경에서 유의한 변화를 보였다. 이러한 결과들은 감각이상과 통증이 실제 말초신경 이상과 관련이 있음을 시사한다. 향후 많은 수의 대상자를 포함한 추가적인 연구가 필요하다.

• 대한근전도전기진단의학회지
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• 제20권2호
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• pp.144-147
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• 2018

Although dysgeusia can occur as a consequence of stroke attacks, many physicians and patients tend to overlook it. A 50-year old woman complained of a 2-week history of abnormal sense of taste on the anterior two-thirds of right tongue. Blink reflex test demonstrated prolonged ipsilateral and contralateral R2 responses with the right supraorbital nerve stimulations, which suggest the lesion on the descending pathway. Brainstem magnetic resonance imaging (MRI) demonstrated abnormal findings in the right lower dorsal pons, anterior to 4th ventricle, lateral to inferior colliculus, and at the level of the pontomedullary junction, which was compatible with solitary tract nucleus and spinal trigeminal nucleus. Brainstem infarction should be considered in patients who have abnormal sense of taste. Additionally, blink reflex test may be helpful for the detection of central origin dysgeusia.

• 한국지능정보시스템학회:학술대회논문집
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• 한국지능정보시스템학회 2001년도 The Pacific Aisan Confrence On Intelligent Systems 2001
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• pp.151-155
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• 2001

Mobile agent technology has been the subject of much attention in the last few years, mainly due to the proliferation of distributed software technologies combined with the distributed AI research field. In this paper, we present a design of communication networks of agents that cooperate with each other for forwarding messages to the specific mobile agent in order to make the overall system location transparent. In order to make the material accessible to general intelligent system researchers, we present the general ideas abstractly in terms of the graph theory. In particular, a proxy network is defined as a directed acyclic graph satisfying some structural conditions. In turns out that the definition ensures some kind of reliability of the network, in the sense that as long as at most one proxy agent is abnormal, there agent exists a communication path, from every proxy agent to the target agent, without passing through the abnormal proxy. As the basis for the implementation of this scheme, an appropriate initial proxy network is specified and the dynamic nature of the network is represented by a set of graph transformation rules. It is shown that those rules are sound, in the sense that all graphs created from the initial proxy network by zero or more applications of the rules are guaranteed to be proxy networks. Finally, we will discuss some implementation issues.

• The Journal of Korean Physical Therapy
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• 제24권6호
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• pp.414-418
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• 2012

Purpose: Muscle fatigue affects proprioception, and it causes problems in spinal stability. The purpose of this study was to examine the effect on the accuracy of reproducing the lumbar angles before lumbar exercise and after fatiguing isokinetic lumbar exercise. Methods: Thirty healthy adults participated in this study. Before induction of fatigue by exercise, the proprioception was measured by Biodex. Lumbar positions were passively maintained on stimulation position ($25^{\circ}$ flexion and $25^{\circ}$ extension), and back to the starting position. Subjects actively repositioned the remembered stimulation position, and error degrees between the stimulation position and reposition were measured. Using an isokinetic device at $120^{\circ}$/sec of velocity of angle lumbar flexion/extension exercise resulted in muscle fatigue. The post-fatigue proprioceptive position sense was used in the same way as in pre-fatigue measurement. Results: Means of position sense of pre-fatigue were $2.19{\pm}1.97$ on flexion angle, and $5.04{\pm}2.84$ on extension angle. After exercise induced fatigue, means of position sense were $2.37{\pm}1.83$ on flexion angle, and $4.93{\pm}2.57$ on extension angle. Results of this study showed significant differences of lumbar proprioceptive position sense between pre- and post-fatigue. Conclusion: Lumbar proprioception sense in active repositioning in flexion and extension was affected in the presence of muscle fatigue. Therefore, it should be noted that therapeutic exercise for patients with abnormal proprioceptive sense or elderly people must be performed with care because muscle fatigue can cause secondary damage.

• Journal of Advanced Marine Engineering and Technology
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• 제27권1호
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• pp.42-48
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• 2003

In general many engineers can diagnose the fault condition using the abnormal ones among data monitored from a diesel engine, but they don't need the system modelling or identification for the work. They check the abnormal data and the relationship and then catch the fault condition of the engine. This paper proposes the construction of a fault diagnosis engine through malfunction data gained from the data fault detection system of neural networks for diesel generator engine, and the rule inference method to induce the rule for fuzzy inference from the malfunction data of diesel engine like a site engineer with a fuzzy system. The proposed fault diagnosis system is constructed in the sense of the Malfunction Diagnosis Engine(MDE) and Hierarchy of Malfunction Hypotheses(HMH). The system is concerned with the rule reduction method of knowledge base for related data among the various interactive data.

• 한국지진공학회논문집
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• 제10권6호
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• pp.133-135
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• 2006

구조물 이상 탐지를 위해 외력에 의한 광섬유의 모드변환을 이용한 새로운 광섬유 센서를 고안하고 제작하였다. 이러한 광섬유 센서는 민감도가 매우 좋으며, 크기가 작고, 전자파에 매우 둔감한 장점들이 있다. 이 센서는 적외선영역에서의 단일모드 광섬유와 635nm의 레이저 다이오드로 구성하였기 때문에 광섬유의 끝단에서의 횡모드는 가우시안 분포가 아닌 다른 형태의 횡모드 형태가 생긴다. 이 광섬유 중간을 구조물에 부착한 후, 구조물에 외력을 인가하면 광섬유 횡모드의 분포 변화가 생기고, 이를 감지함으로써 구조물 이상 유무를 판독할 수 있다. 본 논문에서는 광섬유 센서를 부착한 알루미늄 보를 변형시킴으로써 광섬유 센서의 횡모드 변화를 조사하였다. 이 실험결과 구조물의 이상상태를 감지할 적당한 신호를 얻을 수 있었으며, 구조물의 이상유무를 측정할 수 있는 광섬유 센서로의 가능성을 확인할 수 있었다.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제35권6호
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• pp.376-380
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• 2013

Frey syndrome is a disease characterized by abnormal sweating, facial redness, and rare pain by stimulation of taste sense on the limited area dominated by the auriculotemporal nerve and great auricular nerve. Although the developmental mechanism and histopathologic cause of Frey syndrome are still being debated, the most reliable theory is based on injury of the parathympathetic nerve connected to the auriculotemporal nerve continuing to abnormal regeneration. The other theory is that the sweat glands develop an increased sensitivity after degeneration of sympathetic fibers. Therapy of Frey syndrome includes drugs, radiographic treatment, and surgical treatment; however, in most cases, treatment is not satisfactory. This is a case report on a 24-year-old male patient with Frey syndrome caused by the fracture reduction with retromandibular approach after multiple facial traumas and spontaneous healing without any special treatment.

• 대한정형도수물리치료학회지
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• 제17권2호
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• pp.1-9
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• 2011

Background: Injury or pain in the neck can affect proprioception. People who have a reduced proprioception are easily exposed to induce injury or pain. The aim of this study was to examine the reduced proprioception among people who had lateral flexion postural habit of neck in a sitting position. Methods: Twenty subjects with lateral flexion postural habit were compared with a matched control group. Relocation errors in 30 degree rotation to the right were measured three times with and without visual information randomly. Results: Relocation errors were higher in the lateral flexion postural group than the control group with (p<.01) and without (p<.005) the visual information. Visual information didn't affect the cervical relocation errors in the abnormal and control groups. Repetition is increased the relocation errors with (p<.01) and without (p<.001) visual information. Conclusions: The results support the hypothesis that subjects with lateral flexion postural habit have incorrect perception of their head position. It is necessary to realize the possibility of injury or pain found among people with lateral flexion postural habit.

• Molecules and Cells
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• 제21권1호
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• pp.141-146
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• 2006

We previously showed that NtCDPK1, a tobacco calcium-dependent protein kinase, interacts with and phosphorylates the Rpn3 regulatory subunit of the 26S proteasome, and that both NtCDPK1 and Rpn3 are mainly expressed in rapidly proliferating tissues, including shoot and root meristem. In this study, we examined NtCDPK1 expression in roots using GUS expression in transgenic Arabidopsis plants, and investigated its function in root development by generating transgenic tobacco plants carrying a sense NtCDPK1 transgene. GUS activity was first detected in roots two days after sowing. In later stages, strong GUS expression was detected in the root meristem and elongation zone, as well as the initiation sites and branch points of lateral roots. Transgenic tobacco plants in which NtCDPK1 expression was suppressed were smaller, and their root development was abnormal, with reduced lateral root formation and less elongation. These results suggest that NtCDPK1 plays a role in a signaling pathway regulating root development in tobacco.

• 한국융합학회논문지
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• 제7권6호
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• pp.237-247
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• 2016

본 연구는 ISMS인증 취득 후 기업의 성과를 측정하여 기업에게 어떤 영향을 미치는지를 정량적으로 분석하였다. 본 연구에서는 사건연구방법론을 사용하였으며, 기업성과 중에서 기업의 가치에 대한 변화를 측정하기 위해 주가 정보를 활용하여 특정한 사건이 기업의 가치에 미치는 영향에 대해 초과수익률을 통해 분석하였다. ISMS 인증을 취득한 기업을 대상으로 ISMS 인증 취득 후에 초과수익률이 발생한 정도에 대한 분석을 시도하였으며, 나아가 초과수익률을 3가지 상태인 증가, 유지, 감소로 분류하였으며, 집단별로 군집분석을 하였다. 본 연구의 결과는 ISMS 인증 성과에 대한 정량적 측정이 가능할 수 있고, 이를 통해 정보 보호에 대한 체계적인 활동을 요구할 수 있으며, 나아가 기업의 정보보호 활동을 하는데 있어 도움이 될 것으로 기대한다.