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Neural Regeneration Research 2017年第1期12卷 151-152页

作者： Sung ho Jang jeong Pyo Seo Department of Physical Medicine and Rehabilitation College of MedicineYeungnam UniversityDaemyungdongNamGuDaeguRepublic of Korea

Consciousness is mainly controlled by activation of the ascending reticular activating system（ARAS）.Diffusion tensor tractography（DTT）,which is reconstructed from diffusion tensor imaging（DTI）data.

关键词： activating tensor ascending reconstructed injuries basal subarachnoid rehabilitation infarct injured

Unusual neural connection between injured cingulum and brainstem in a patient with subarachnoid hemorrhage

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Neural Regeneration Research 2014年第5期9卷 498-499页

作者： jeong Pyo Seo Sung ho Jang Department of Physical Medicine and Rehabilitation College of MedicineYeungnam UniversityDaegu Republic of Korea

The human brain is known to have six cholinergic nudei （Selden et al., 1998; Nieuwenhuys et al., 2008）. The cerebral cortex obtains cholinergic innervation mainly from the basalis nucleus of Meynert （Ch 4） in the bas- al forebrain through the medial and lateral cholinergic pathways （Selden et al., 1998; Mesulam et al., 1983）. The cingulum, the neural fiber bundle connecting the basal forebrain and the medial temporal lobe, contains the medial cholinergic pathway （Selden et al., 1998; hong and Jang, 2010）.

关键词： Unusual neural connection between injured cingulum and brainstem in a patient with subarachnoid hemorrhage

Injury of corticoreticular pathway and corticospinal tract caused by ventriculoperitoneal shunting

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Neural Regeneration Research 2015年第11期10卷 1874-1875页

作者： Sung ho Jang jeong Pyo Seo Department of Physical Medicine and Rehabilitation College of Medicine Yeungnam University

Ventriculoperitoneal shunting is a commonly used neurosurgical procedure for management of hydrocephalus（Jang et al.,2015）.Various complications of ventriculoperitoneal shunting have been reported,including infection,hemorrhage,shunt malfunction,shunt displacement and brain swelling（Kwon and Jang,2012,2015）.Although ventriculoperitoneal shunting can cause injury of adjacent neural tracts,little is known about injury of the neural tract by ventriculoperitoneal shunting（Kwon and Jang, 2013）.

关键词： CRP CST DTI Figure

Recovery of the corticospinal tracts injured by subfalcine herniation: a diffusion tensor tractography study

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Neural Regeneration Research 2014年第12期9卷 1231-1233页

作者： jeong Pyo Seo Sung ho Jang Department of Radiology Second Department of Physical Medicine and Rehabilitation College of Medicine Yeungnam University

Motor weakness is one of the most serious disabling sequelae of stroke. For successful rehabilitation, thorough estimation of the state of injured neural tracts for motor function is mandatory. After development of diffusion tensor tractogra- phy （DTT）, which is derived from diffusion tensor imaging （DTI）, three-dimensional reconstruction and estimation for three motor tracts, such as the corticospinal tract, the rubrospinal tract, and the corticoreticular pathway became possible （Kunimatsu et al., 2004; Puig et al., 2010; Yang et al., 2011）. The corticospinal tract is known to be a major neural tract for motor function in the human brain （Binkofski et al., 1996）.

关键词： a diffusion tensor tractography study DTI

User Recognition System Based on Spectrogram Image Conversion Using EMG Signals

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Computers, Materials & Continua 2022年第7期72卷 1213-1227页

作者： Jae myung Kim Gyu ho Choi Min-Gu Kim Sung Bum Pan Interdisciplinary Program in IT-Bio Convergence System Chosun UniversityGwangju61452Korea IT Research Institute Chosun UniversityGwangju61452Korea

Recently,user recognitionmethods to authenticate personal identity has attracted significant attention especially with increased availability of various internet of things(IoT)services through fifth-generation technology(5G)based mobile *** EMG signals generated inside the body with unique individual characteristics are being studied as a part of nextgeneration user recognition ***,there is a limitation when applying EMG signals to user recognition systems as the same operation needs to be repeated while maintaining a constant strength of muscle over ***,it is necessary to conduct research on multidimensional feature transformation that includes changes in frequency features over *** this paper,we propose a user recognition system that applies EMG signals to the short-time fourier transform(STFT),and converts the signals into EMG spectrogram images while adjusting the time-frequency resolution to extract multidimensional *** proposed system is composed of a data pre-processing and normalization process,spectrogram image conversion process,and final classification *** experimental results revealed that the proposed EMG spectrogram image-based user recognition system has a 95.4%accuracy performance,which is 13%higher than the EMGsignal-based *** a user recognition accuracy improvement was achieved by using multidimensional features,in the time-frequency domain.

关键词： EMG user recognition spectrogram CNN

A segment version transcoding for client-centric wireless mobile media streaming

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Journal of Central South University 2013年第9期20卷 2372-2377页

作者： LEE Chong-deuk BANG Jun-ho jeong Taeg-won Division of Electronic Engineering Chonbuk National University Department of IT Applied System Engineering Chonbuk National University

An object segment similarity function is taken into account from the continuous media frames to measure the individual streaming profit of certain segment versions of a media ***,a new segment version-based transcoding(SVT)mechanism is derived for a quality of service(QoS)of client-centric media streaming in wireless mobile *** derived function utilizes the fuzzy similarity of certain segment versions of an *** mechanism provides the effectiveness of reduction of the stream startup latency among segment versions,and the average access of each ***,the proposed segment version transcoding mechanism reduces packet loss which in turn increases streaming performance and *** performance of the partitioned segment versions is simulated and some segment versions are *** simulation results show that the proposed mechanism outperforms the other mechanisms in average cache hit ratio and in average startup latency ratio.

关键词： similarity function media object segment version client-centric media streaming

A new dimmer for alternating-current directly driven light-emitting-diode lamp

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Journal of Central South University 2012年第2期19卷 374-379页

作者： KIM Jong-hyun RYU myung-hyo YOON Hyok-min SONG Eui-ho School of Mechatronics Changwon National University

A new dimmer using a mental-oxide-semiconductor field-effect transistor (MOSFET) for alternating-current (AC) directly driven light-emitting-diode (LED) lamp was presented. The control method of proposed dimmer is pulse width control (PWM) method. Compared with the conventional phase-controlled dimmer, the proposed PWM dimmer can produce sine wave and did not cause harmonics problem. Furthermore, the proposed control method did not amplify the light flicker due to the independence of input voltage. Therefore, the PWM dimmer can be used as the dimmer of the AC LED lamp instead of the conventional phase-controlled dimmer. The experimental result shows that the proposed PWM dimmer has good performances.

关键词： alternating-current directly driven light-emitting-diode pulse width control total harmonic distortion flicker triac

Influence of the wastewater composition on denitrification and biological P-removal in the S-DN-P process: (c) Dissolved and undissolved substrates

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Journal of Environmental Sciences 2009年第8期21卷 1074-1079页

作者： Hee-jeong Choi Chul-ho Choi Seung-Mok Lee Diwakar Tiwari Department of Environmental Engineering Kwandong University Department of Chemistry School of Physical Sciences Mizoram University

The denitdfication and P-removal in the sorption-denitrification-P-removal （S-DN-P） process were carded out under various wastewater compositions. It is noted that P-removal largely depends on the wastewater composition as well to the quantity of the substrates present in wastewater fraction. Three different wastewater fractions are obtained as： raw wastewater, dissolved wastewater （obtained with filtration using 0.45 μm filter）, and undissolved wastewater （i.e., infiltrate obtained by above filtration）. The ratio of P-release/CODtotal-consumption clearly inferred that undissolved wastewater possess very low value i.e., 0.0008 followed by raw wastewater 0.008 and dissolved wastewater 0.03. When this ratio was nearby 0.01, enhanced P-removal was observed. Moreover, the ratio of P-uptake to NO3^--N decomposition for raw wastewater was two times for dissolved wastewater. Interestingly, it was observed that the P-removal and denitrification depend not only on the dissolved substrates but also the undissolved substrates present in the wastewater. The result of the P-removal obtained with this S-DN-P process did not show a big difference of 36%, 34% and 30%, respectively, for raw, dissolved and undissolved wastewater.

关键词： denitrification polyhydroxybutyrate sequencing batch biofilm reactor sorption denitrification P-removals

Role of adjuvant chemotherapy on recurrence and survival in patients with resected ampulla of Vater carcinoma

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World Journal of Gastrointestinal Oncology 2023年第4期15卷 677-688页

作者： Se Jun Park Kabsoo Shin In-ho Kim Tae ho hong Younghoon Kim myung-ah Lee Division of Medical Oncology Department of Internal MedicineThe Catholic University of KoreaSeoul St.Mary’s HospitalSeoul 06591South Korea Department of General Surgery The Catholic University of KoreaSeoul St.Mary’s HospitalSeoul 06591South Korea Department of Pathology The Catholic University of KoreaSeoul St.Mary’s HospitalSeoul 06591South Korea

BACKGROUND Owing to rarity of disease and lack of prospective studies, data supporting the role of adjuvant chemotherapy in ampulla of Vater(AoV) carcinoma is *** To evaluate whether adjuvant chemotherapy cases for AoV carcinoma had better disease-free survival(DFS) rates than cases of observation following curative *** We retrospectively analyzed the association between adjuvant chemotherapy and DFS and overall survival(OS) in patients with stage IB-Ⅲ AoV carcinoma who underwent curative surgical resection. Fluorouracil-based adjuvant chemotherapy was administered after surgery at the discretion of the physician. Adjusted multivariate regression models were used to evaluate the association between adjuvant chemotherapy and survival *** Of the total 104 patients who underwent curative surgery, 52 received adjuvant chemotherapy. Multivariate analysis revealed that higher histologic grade [hazard ratio(HR) = 2.24, P = 0.046], advanced tumor stage(HR = 1.85, P = 0.030), and vascular invasion(HR = 2.14, P = 0.010) were associated with shorter DFS. Adjuvant chemotherapy improved DFS compared to the observation group(HR =0.50, P = 0.015) and tended to be associated with a longer OS, although the difference was not statistically significant(HR = 0.58, P = 0.098).CONCLUSION Among patients with resected AoV carcinoma, the adjuvant chemotherapy group was not associated with a significant survival benefit compared to the observation group. however, on multivariate analysis adjusting for prognostic factors, adjuvant chemotherapy following surgery was an independent prognostic factor for DFS in patients with resected AoV carcinoma. Further studies are needed to investigate the effectiveness of adjuvant chemotherapy according to histologic phenotype.

关键词： Ampulla of Vater carcinoma Adjuvant chemotherapy Prognosis Recurrence

An Efficient and Spam-Robust Proximity Measure Between Communication Entities

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Journal of Computer Science & Technology 2013年第2期28卷 394-400页

作者： Joo Hyuk Jeon Jihwan Song jeong Eun Kwon Yoon Joon Lee Man ho Park Myoung ho Kim Department of Computer Science Korea Advanced Institute of Science and Technology Biz Solution Team SK Telecom Information Technology R&D Center Mobile Communication Convergence Research Team Electronics and Telecommunications Research Institute

Electronic communication service providers are obliged to retain communication data for a certain amount of time by their local laws. The retained communication data or the communication logs are used in various applications such as crime detection, viral marketing, analytical study, and so on. Many of these applications rely on effective techniques for analyzing communication logs. In this paper, we focus on measuring the proximity between two communication entities, which is a fundamental and important step toward further analysis of communication logs, and propose a new proximity measure called ESP （Efficient and Spam-Robust Proximity measure）. Our proposed measure considers only the （graph- theoretically） shortest paths between two entities and gives small values to those between spam-like entities and others. Thus, it is not only computationally efficient but also spam-robust. By conducting several experiments on real and synthetic datasets, we show that our proposed proximity measure is more accurate, computationally efficient and spam-robust than the existing measures in most cases.

关键词： proximity closeness spam electronic communication