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Towards Scalable and Cost-efficient Software-Defined 5G Core Network
Jong Han Park(박종한),Changsoon Choi(최창순),S angsoo Jeong(정상수),Minsoo Na(나민수),Sungho Jo(조성호) 한국통신학회 2016 정보와 통신 Vol.33 No.6
Network and network functions virtualization (NFV) promise a number of attractive benefits and thus have driven mobile network operators to transform their previously static networks to more dynamic and software-defined networks. In this article, we share a mobile network operator’s view based on implementation and deployment experiences in the wild during the past few years towards a software-defined 5G core network. More specifically, we present a practical point of view from mobile network operators and elaborate on why some of the virtualization benefits such as total cost of ownership (TCO) reduction are not easily realized as initially intended. Then, we describe 5G visions, services, and their requirements commonly agreed across mobile operators globally. Given the requirements, we then introduce desirable characteristics of 5G mobile core network and its key enabling technologies.
박종한(Jong Han Park),이종훈(Jong Hun Lee),문병상(Byung Sang Mun) 대한노인정신의학회 2004 노인정신의학 Vol.8 No.2
문항반응이론을 이용하여 간이기억검사의 문항을 분석하여 문항 난이도와 문항 변별도를 평가했다. 노인 정신질환자 중 기억 장애가 있는 332명과 없는 354명에서 2-모수로지스틱모델을 이용하여 문항의 난이도와 변별도를 계산했다. 문항들의 난이도는 평균(±표준편차)이 -0.878(±1.176)이고 범위는 -3.299~0.902이었다. 변별도는 0.346 내지 1.848이었고, 평균(±SD)은 -1.051(±0.392)이었다. 19개 문항의 변별도가 적정 수준 이상이었고, 논리적 기억의 지연성회상의 변별도가 최고이었다. 결론적으로 모든 문항들은 기억력 선별 검사로서 p<0.01 수준에서 적절하다고 여겨진다. Objective:Analyses of the 24 items of the Mini-Memory Test (MiMeT) using the item response theory. Methods:Item difficulty and item discrimination of all items were evaluated with the 2-parametric logistic model in elderly psychiatric patients with memory impairment (n=332, 48.4%) and without (n=354, 51.6%). The BILOG 3 for Windows was employed for the analysis. Results:The mean item difficulty (±SD) was -0.878 (±1.176), with range of -3.299~0.902. The mean item discrimination (±SD) was -1.051(±0.392), ranging from 0.346 to 1.848. Discriminations of 19 items were above appropriate level and the delayed recall of short story items of the long-term memory had the highest discrimination. Conclusion:All the MiMeT items were thought as having no problems as memory screening test in terms of difficulty and discrimination at the level of p<0.01.
지역사회 노인들에서 치매의 주관적 판단과 객관적 평가 간의 차이
박종한(Jong Han Park),홍미령(Mi Ryung Hong),장병원(Byung Won Jang),변용찬(Yong Chan Byun) 대한노인정신의학회 2005 노인정신의학 Vol.9 No.2
Objective : Evaluation of how much the presence of dementia is underdiagnosed or misdiagnosed in the elderly population by themselves. Method : The number of self-professed dementia cases was compared to the estimated number of cases with cognitive impairment based on the Korean version of the Mini-Mental State Examination (MMSEK) employed in a nationwide survey “Need assessment of the long-term care in the elderly” in three representative areas of Korea. The would-be dementia cases were analyzed. Results : Only eighteen (0.7%) of 2,638 reported the presence of dementia while 414 (15.7%) were diagnosed as having questionable cognitive impairment and 385 (14.6%) as having definite cognitive impairment on the MMSEK. On the other hand, some of the self-professed “dementia” cases were not impaired on the MMSEK. Conclusion : The public should be educated on clinical manifestations of dementia for its early diagnosis and appropriate treatment because they are mostly without understanding about dementia.
朴鍾漢(Park, Jong-han) 중국어문학연구회 2014 중국어문학논집 Vol.0 No.89
This thesis has been done as a part of work seeking how to deal with "religion" while studying and educating Chinese Culture. Although religion plays an important role on the formation and change of culture, it doesn"t seem that there is any appropriate studying and education going on in the Chinese culture academy. In this respect, our research will provide significant discussion to the Chinese culture academy. To make the proper discourse of religion in Chinese culture academic field, we have two long term goal: First, we will argue the Confucianism as a religion. Through this argue, we expect Confucianism would be referred in Chinese religion discourse. Second, we will investigate whether Confucianism still do an effect on Chinese as religion even in 21 century. In this thesis, we researched the first part of the goal. The summary of our research so far is as follows. Confucianism in Chinese culture corresponds to Christian religion in the western country. It is a fundamental idea that has shaped Chinese" thought and action for 2,500 years. But Chinese culture scholars hesitate to admit Confucianism as religion. Because their definition of religion has a certain limitation. The definition of religion can be divided in a two way: a substantive definition and a functional definition. A typical example of a substantive definition is to consider religion as "the faith for the spiritual being"(Tylor, 1871). According to this definition, Confucianism is not religion. The good example of a functional definition is that of A. N. Whitehead. "A religion can be defined as a system of general truths which have the effect of transforming humanbeing’s character when they are sincerely held and vividly apprehended."(Whitehead, 1926[2003:166]). According to this definition, Confucianism has been working as religion for Chinese. When studying religion, religion scholars prefer a substantive definition and sociology scholars prefer a functional definition. For culture scholars, it is more useful to choose a functional definition when they research the conduct and the habit of a man. Whitehead(1926[2003]) divides lots of religions into the following 2 types, and describes how each religion functions for the formation of human character. One is communal religion and the other is rational religion. The culture of a region which mainly believes rational religion tends to stress individualism and low-power distance. On the contrary, the culture of a region which believes religion of the community takes on collectivism, high-power distance. Through this, we can presume that religion and culture has considerable correlations. The biggest achievement through the research is that we could invite Confucianism to the Chinese religion discourse field. Though Confucianism has actually functioned as religion, it has not been admitted as religion in the view of substantive definition. Futhermore, it is another achievement of this study to get a model with which we can analyze the religious property of Confucianism.
한약 추출물이 실험적 관절염 모델에 미치는 영향에 대한 연구 분석
박종한 ( Jong-han Park ),정수현 ( Su-hyeon Jeong ) 대한한의학회 한방재활의학과학회 2018 한방재활의학과학회지 Vol.28 No.3
Objectives The aim of this study was to analyze the herbal prescription and composition of the leading experimental studies of herbal medicine extract in arthritis model and to analyze the way of setting model and the way of validating effect of the leading experimental studies of herbal medicine extract in arthritis model. Methods The Subjects were selected by select criteria and exclusion criteria from January 1, 2000 to September 30, 2017. The herbal prescription and composition of the selected subjects were analyzed. The effects and statistical significance of selected studies were verified by comparing the control and treatment groups of frequently used cytokines (tumor necrosis factor [TNF]-α, interleukin [IL]-1β, IL-6). Results 52 kinds of herbal prescriptions and 118 kinds of individual herbs were used in 64 studies. Among the 52 kinds of herbal prescriptions, Daeganghwal-tang (4 times) was used most frequently. Among the 118 kinds of individual herbs, Glycyrrhizae Radix (49 times), Angelicae Giantis Radix (34 times), Osterici Radix (24 times) were used most frequently in order. The prescription that has the highest TNF-α decline is Changchooldoin-tang. The prescription that has the highest IL-1β decline is Banggibokryeong-tang. The prescription that has the highest IL-6 decline is Gwanjeol8ho-bang. Conclusions Daeganghwal-tang (herbal prescription) and Glycyrrhizae Radix, Angelicae Giantis Radix, Osterici Radix (individual herbs) were used most frequently. The prescriptions that have the highest cytokines decline were Changchooldoin-tang, Banggibokryeong-tang and Gwanjeol8ho-bang. (J Korean Med Rehabil 2018;28(3):39-53)
성장생물학 : 비육돈에서 사료의 에너지 수준과 도살체중이 성장성적과 도체의 등급 및 육질특성에 미치는 영향
박만종 ( Man Jong Park ),정진연 ( Jin Yeun Jeong ),하덕민 ( Duck Min Ha ),한정철 ( Jeong Cheol Han ),심태건 ( Tae Geon Sim ),박병철 ( Byung Chul Park ),박구부 ( Gu Boo Park ),주선태 ( Seon Tea Joo ),이철영 ( Chul Young Lee ) 한국동물자원과학회 ( 구 한국축산학회 ) 2009 한국축산학회지 Vol.51 No.2
이족 보행 로봇의 보행 안정화 및 RFID를 이용한 경로 추종에 관한 연구
박종한(Jong-Han Park),김용태(Yong-Tae Kim) 한국지능시스템학회 2013 한국지능시스템학회논문지 Vol.23 No.1
이족 보행 로봇을 실생활에 적용하기 위해서는 다양한 환경에서의 강인한 보행 뿐만 아니라, 현재 위치를 인식하여 목표 위치로의 경로를 생성하고, 경로를 추종하는 기능이 요구된다. 최근에 많이 사용되고 있는 RFID는 이동 로봇의 위치인식 및 경로 생성에 손쉽게 활용이 가능하다. 그러나 이족 로봇은 보행시에 불안정성을 내포하고 있어 주어진 경로에서 벗어나기 쉽다. 본 논문에서는 FSR(Force Sensing Resistor)센서, 자이로와 가속도 센서를 이용하여 이족 보행 로봇의 보행 안정화 방법을 제안하였다. 또한 양발에 RFID 센서를 장착하여 이족 보행 로봇의 위치 인식 후 경로를 추종하는 알고리즘을 제안하였다. 제안된 보행 안정화 알고리즘은 실제 제작된 이족 보행 로봇을 이용하여 비평탄 지형에서 실험하여 검증하였으며, 경로 추종 실험은 RFID센서를 로봇의 발바닥에 장착하여 평탄 지형에서 보행실험을 통해 검증하였다. In order to apply a biped robot in real world, the robot requires a robust walking and a function of localization, path planning and navigation. Recently, localization and path planning using RFID of mobile robot has been studying. However, when the biped robot walks, it has unstability and tends to leave the path. In the paper we propose a method of walking stabilization using FSR(Force Sensing Resistor), Gyro and accelerometer for the real biped robot. Also a path tracking algorithm using RFID sensor attached in robot"s foot is proposed based on localization of the robot. The proposed algorithm is verified from walking experiments using real biped robot on uneven terrain and path tracking experiments on the RFID environments.