• Title/Summary/Keyword: 변소영

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ETI(Expected Transmission Interference) for Interference-aware (노드 간섭을 고려한 ETI 알고리즘)

  • Byeon, So-Young;Roh, II-Soon
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.9 no.6
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    • pp.89-94
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    • 2009
  • In wireless mesh network, nodes are communicates as like as Ad-Hoc. Nodes of Wireless Mesh Network must have a good QoS and a algorithm for good path. ETX, ETT and WCETT are proposed Wireless Mesh Network routing methods. But these have Interference problem. This paper propose ETI(Expected Transmission Interference) based on ETT for good path selection. This paper show the algorithm and improved performance in simulation than other algorithms.

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Clinical and Electrophysiologic Characteristics of Paraproteinemic Neuropathy (파라단백혈증신경병의 임상 및 전기생리학적 특징)

  • Pyun, So Young;Kim, Byung-Jo
    • Annals of Clinical Neurophysiology
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    • v.17 no.2
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    • pp.45-52
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    • 2015
  • The paraproteinemia is a disorder in which a single clone of plasma cells (monoclonal gammopathy) is responsible for the proliferation of monoclonal proteins (M-proteins). Approximately 10% of patients with idiopathic peripheral neuropathy have monoclonal gammopathy. Some M-proteins have the properties of an antibody to the components of peripheral nerve myelin, but the pathophysiological relationship between the neuropathy and the M-protein is often obscure. The relationship between peripheral neuropathy and monoclonal gammopathy requires the appropriate neurological and hematological investigations for precise diagnosis and treatment. In this review, we provide an update on the causal associations between peripheral neuropathy and monoclonal gammopathy as well as characteristics of clinical and electrophysiologic features.

Peripheral Neuropathy Associated with Human Immunodeficiency Virus Infection (사람면역결핍바이러스 감염과 연관된 말초신경병증)

  • Lee, Min Hwan;Lim, Young-Min;Pyun, So Young;Kim, Jimin;Kim, Kwang-Kuk
    • Annals of Clinical Neurophysiology
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    • v.14 no.1
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    • pp.29-35
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    • 2012
  • Background: Peripheral neuropathy is the most frequent neurological complication in human immunodeficiency virus (HIV) infection, related with diverse etiologies including inflammation, opportunistic infection and side effects of medications. The purpose of the present study was to evaluate characteristics of HIV associated neuropathy according to the stage of HIV infection. Methods: In reviewing the medical records of HIV patients who underwent electrodiagnostic studies between 1997 and 2011, total 11 patients (all males; median age, 47 years; range, 28-71 years) with comorbid neuropathy were enrolled. Stage of HIV infection was categorized according to the Centers for Disease Control and Prevention (CDC) criteria. Classification of peripheral neuropathy was based on clinical and electrophysiological features. Results: Distal symmetric polyneuropathy was observed in 8 patients (72.7%), inflammatory demyelinating polyneuropathy in 2 patients (18.1%), and polyradiculopathy in 1 patient (9.1%). Median CD4+ T cell count was $123/mm^3$ (range, $8-540/mm^3$) and 7 patients (60%) had the most advanced HIV disease stage (CDC-C3). There was no neuropathy caused by CMV infection. Conclusions: Distal symmetric polyneuropathy was the most common type of neuropathy in HIV infection, but various forms of neuropathy such as inflammatory demyelinating polyneuropathy and polyradiculopathy were also present. HIV associated neuropathy is more frequently associated with advancing immunosuppression, although it can occur in all stages of HIV infection.

Obvious Time Differences in Simultaneous Ictal Recordings with Scalp and Subdural Electrodes: One Patient with Mesial Temporal Lobe Epilepsy (두피전극과 경질막밑 전극으로 동시 기록한 발작기 뇌파에서의 뚜렷한 시간차이: 안쪽관자엽간질 환자 1예)

  • Koo, Dae-Lim;Song, Pamela;Byun, So-Young;Lee, Jung-Hwa;Yoo, Nam-Tae;Joo, Eun-Yeon;Seo, Dae-Won;Hong, Seung-Chyul;Hong, Seung-Bong
    • Annals of Clinical Neurophysiology
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    • v.13 no.2
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    • pp.93-96
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    • 2011
  • We present a recordings of 37-year-old woman with simultaneous ictal scalp and subdural electrodes. The ictal rhythm on subdural electrocorticography (ECoG) started earlier (median 24.5 sec) and ended later (median 2.0 sec) compared to ictal rhythm on scalp EEG. Eight ictal ECoG recordings were well localized to left temporal area, whereas ictal scalp EEG recordings were not. Our case shows the obvious timing relations between two recordings, and different electrophysiologic information about localization of ictal onset zone.

Concept Classification System of Jeju Oreum based on Web Search (웹 검색 기반으로 한 제주 오름의 콘셉트 분류 시스템)

  • Ahn, Jinhyun;Byun, So-Young;Woo, Seo-Jung;An, Ye-Ji;Kang, Jungwoon;Kim, Mincheol
    • Journal of Digital Convergence
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    • v.19 no.8
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    • pp.235-240
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    • 2021
  • Currently, the number of visitors to Oreum is increasing and the trend of tourism is changing rapidly. The motivation for visiting Oreum is also changing from relaxation and pleasure to experiences. In line with this change, people visit the mountain by selecting motivation such as marriage and family photos, not just exercise. However, it is difficult to search for an Oreum that matches the tourists' motivation. In order to solve these problems, we proposed a system that provides the association between Oreum and concept based on the number of search results from web search engines in real time. User can select the desired date to check the associations for past or selected periods and concepts. Through this research, visitors to Oreum, Jeju's natural heritage, can contribute to the development of tourism in Jeju. In the future, the concept of visiting beaches or seas, not just Jeju Oreum, can be provided. In this work, search results from websites are collected, stored in a database, and search results of Oreum and concept are provided on the homepage to classify Oreum trends.