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박상준,Park, Sang-Joon 한국시뮬레이션학회 2005 한국시뮬레이션학회 논문지 Vol.14 No.2
Access networks connected in B3G networks provide its property network service. Hence, though mobile users may utilize only a network service from an access network, they can also use variety of network services from several access networks for their service satisfaction. To support heterogeneous changeable network service in access networks, the mobile terminal must implement heterogeneous system techniques so that it is able to change the network service by ISHO (Inter-System Handover) In this paper, we present the ISHO condition by the policy-based framework in B3G networks. Also, we propose an ISHO scheme to control network resources for the QoS management of a mobile session between UMTS and WLAN access networks. To support the QoS management, the proposed scheme is that it will be implemented before the resource exhaustion occurs to effect network performances.
화침요법(火鍼療法)의 연구동향(硏究動向)과 D.I.T.I를 활용(活用)한 임상적(臨床的) 고찰(考察)
박상준,안수기,Park Sang-Jun,Ahn Soo-Gi 대한침구의학회 1998 대한침구의학회지 Vol.15 No.2
We have studied the clinical application of burning acupuncture by examining 18recent-published papers in the journal 'ZHONGGUO ZHENJIU(中國鍼灸)' for the bibliographical study and clinical study and have given medical treatment of burning acupuncture on 21 Patients who suffered 'the body chill symptoms(冷症)' at the oriental hospital of Won-Kwang University, Kwang-Ju. As a result, we have come to some conclusions as below. 1. The diseases for which the modern borning acupuncture is efficacious are widely extended to various kinds of field such as surgery, internal medicine, gynecology, ophthalmology, otolaryngology. etc. as well as numbness, meridian muscle disease(經筋病) mentioned in 'Neijing(內徑)' . 2. The effects of burning acupuncture therapy are wen zhuang yang qi(溫壯陽氣), sheng ji lian chuang(生肌斂瘡), san han chu shi(散寒除濕), qu fens zhi yang(祛風止痒), qu yu chu fu pai nong(祛瘀除腐排膿), san jie xiao zhong(散結消腫), zhi tong huan ji chu ma mu(止痛緩急除麻木), qing re xie hue jie du(淸熱瀉火解毒). 3. The recently reported diseases for which burning acupuncture is good are internal and external humeral epicondylitis, atheroma, menorrhalgia, thecal cyst, tragomaschalia, pruritus, traumatic onychophemia, gout of feet, prostatomegaly, aacne, supprative infection of body surface, snapping finger, backache, numbness, pyocyst etc. 4. The subjective symptoms of 'the body chill symptoms(冷症)' were, most of all, feeling cold accompanied by pain(16 case), while just 4 cases were feeling cold only. 5. In the related diseases of the body chill symptoms(冷症), feeling pain like arthralgia was the most case, and then dysmenorrhea, menorralgia, depression, anemia in order. 6. In the D.I.T.I before and after burning acupuncture treatment, 6 patients had shown 'excellent' effects and 8 patients had turned out 'good', while 7 patients had become'fair'. 7. In the degree of patient-satisfaction, 5 patients announced 'excellence' and 6 patients expressed 'good', 4 expressed 'fair', while the other 6 showed no change. 8. In the correlation of D.I.T.I and patient-satisfaction, the better the result of clinical treatment was, the more satisfied the patient was, however, in the case 'fair', we saw the degree of patient-satisfaction was relatively low, so we could admit the judging significance of D.I.T.I.
셀룰러 망에서 그린 기지국을 위한 저전력 핸드오버 방안
박상준,Park, Sangjoon 한국정보통신학회 2015 한국정보통신학회논문지 Vol.19 No.1
이종의 셀룰러 망은 다양한 무선 환경에서의 이동 단말 서비스를 지원한다. 최근 셀룰러 망에서는 음성 서비스 및 데이터 서비스의 요구가 폭발적으로 증가하고 있는 추세로 기술적 기반이 LTE-A (Long-Term Evolution Advanced)와 IEEE 802.16m 무선망으로 전환되어 보다 많은 수의 기지국 서비스 지원을 필요로 하게 되었다. 셀룰러 망에서의 전력 수요는 대부분 기지국에서 소모되며 이에 기지국의 에너지 소모의 절감이 요구되고 있는 시점이다. 본 논문에서는 동적인 전력 관리 방안을 기반으로 기지국의 전력 소비를 줄이는 방안을 제안한다. 본 논문에서는 시뮬레이션을 통하여 저전력 기지국 수행을 위한 핸드오버 방식의 성능 분석을 수행한다. Heterogeneous cellular networks support various wireless environments for mobile service. Recently, data services as well as voice services are exponentially increased in cellular networks and the technical transition of LTE-A and IEEE 802.16m so that more base stations are requested to provide suitable service. Base stations consume most of energy in cellular networks, and the energy saving is needed for the base station. In this paper, we propose a saving power scheme by the dynamic energy management. In this paper we consider the simulation evaluations of handover for the low powered base station.
폐렴우와 Klebsiella pneumoniae 실험적 감염 랫드의 기관 및 기관지 점막층에서 Globule leukocyte의 출현양상
박상준,이차수,정규식,Park, Sang-joon,Lee, Cha-soo,Jeong, Kyu-shik 대한수의학회 1997 大韓獸醫學會誌 Vol.37 No.4
The study was aimed at identifying the globule leukocytes (GL) of tracheal mucosa layer of Korean native cattle showing symptom of pneumonia which have died as enterotoxemia and normal Korean native cattle in Kyungpook local area. In another set of experiment, Isolated Klebsiella pneumoniae from suddenly died cattle specimens was subjected to rat for a determining globule leukocyte appearance by using histochemical and immunohistochemical method. In histochemical study, globule leukocytes generally was existed in all the case of postmortem of Korean native cattle and 3 heads of slaughtered cattle which showing symptoms of pneumonia and it showed significant increase in tracheal mucosa of rats experimentally infected with Klebsiella pneumoniae. These increased number of globule leukocytes was moderately remained on early infection stage and gradually decreased in timedependent manner after infection. The granule patterns were also determined as an acidmucopolysaccharide. In immunohistochemical study, serotonin intensity in the treacheal mucosaepithelial cells of rat experimentally infected observed a strong immunoreactivity during early infection and gradually decreased in dependent of infection stage while no IgE immunoreactivity observed. These data show that globule leukocytes were increased in a pneumonia, therefore it was considered as a valuable cell that was associated with early stage of inflammatory response.
화학기상증착법을 이용한 그래핀의 물성 조절: 그래핀과 질소-도핑된 그래핀
박상준,이임복,배동재,남정태,박병준,한영희,김근수,Park, Sang Jun,Lee, Imbok,Bae, Dong Jae,Nam, Jungtae,Park, Byung Jun,Han, Young Hee,Kim, Keun Soo 한국전력공사 2015 KEPCO Journal on electric power and energy Vol.1 No.1
본 연구에서는 그래핀의 인위적인 합성방법인 화학기상증착법을 활용하여 합성 파라미터들을 변화시켜줌으로써 그래핀의 물성을 조절하는 연구를 수행하였다. 먼저, 메탄가스를 탄소원으로 순수 그래핀을 합성하였고, 액상의 피리딘을 원료로 사용하여 질소가 도핑된 그래핀을 합성하였다. 각각의 그래핀의 물성은 라만 분광법, X선 광전자 분광법(XPS)을 통한 기초 광물성 측정과 게이트 전압에 따른 그래핀 채널의 전류-전압 응답특성을 통한 전기적 수송현상 측정에 의해 평가되었다. 메탄가스로 합성된 그래핀의 라만 분광 스펙트럼에서는 G-peak과 2D-peak가 선명히 보였고, XPS에서 C1s-peak가 선명하였고, 아울러 전하중성점은 게이트 전압 약 +4 V 정도에서 나타났다. 피리딘을 원료로 합성된 그래핀의 라만 분광 스펙트럼에서는 D-peak, G-peak 그리고 다소 약해진 2D-peak 등이 보였고, XPS에서는 C1s-peak은 물론 N1s-peak도 나타났으며, 전하중성점은 게이트 전압 약 -96 V 정도에서 나타났다. 결과적으로 우리는 화학기상증착법을 활용하여 그래핀의 물성을 성공적으로 조절하였다. In this research, pristine graphene was synthesized using methane ($CH_4$) gas, and N-doped graphene was synthesized using pyridine ($C_5H_5N$) liquid source by chemical vapor deposition (CVD) method. Basic optical properties of both pristine and N-doped graphene were investigated by Raman spectroscopy and XPS (X-ray photoemission spectroscopy), and electrical transport characteristics were estimated by current-voltage response of graphene channel as a function of gate voltages. Results for CVD grown pristine graphene from methane gas show that G-peak, 2D-peak and C1s-peak in Raman spectra and XPS. Charge neutral point (CNP; Dirac-point) appeared at about +4 V gate bias in electrical characterization. In the case of pyridine based CVD grown N-doped graphene, D-peak, G-peak, weak 2D-peak were observed in Raman spectra and C1s-peak and slight N1s-peak in XPS. CNP appeared at -96 V gate bias in electrical characterization. These result show successful control of the property of graphene artificially synthesized by CVD method.
박상준,김의용,Park, Sang Jun,Kim, Eui Yong 한국자원리싸이클링학회 2014 資源 리싸이클링 Vol.23 No.5
A standard plastic garbage bag which was discarded from Incheon Metropolitan City was composed of 4.5% recyclable resources (aluminum cans 0.2%, steel cans 2.5%, glass 1.8%), 92.5% resources with recoverable energy (papers 23.0%, plastics 15.5%, combustible etc. 54.0%) and 3.0% non-combustible etc. Recycling is more effective than landfilling for aluminum cans, steel cans, and glass. The energy recovery process using solid refuse fuel (SRF) is more effective than incineration for papers and plastics. Incineration is more effective than recycling for combustible etc. 2,068,948 Million Btu of total energy savings and 21,008 $MTCO_2E$ of total GHG reductions were obtained by the application of the proposed scheme. The total energy savings were equivalent to an economic benefit of 422 billion won per year. The total GHG reductions were equivalent to a GHG benefit of 4,119 passenger cars not running per year. The lower calorific value of the combustible materials was obtained to be 1,936 kcal/kg of papers, 5,079 kcal/kg of plastics and 2,462 kcal/kg of combustible other resources, respectively. If papers and plastics are properly mixed, the mixture can be used as SRF. The lower calorific value of combustible other resources does not meet the quality criteria for refuse derived fuel, therefore its components are inappropriate to used as solid refuse fuel. 인천광역시에서 배출되는 종량제봉투 안에는 재활용 가능자원이 4.5% (알루미늄캔류 0.2%, 철캔류 2.5%, 유리류 1.8%), 에너지회수가 가능한 자원이 92.5% (종이류 23.0%, 플라스틱류 15.5%, 가연성 기타류 54.0%) 및 매립이 필요한 불연성 기타류가 3.0%로 분석되었다. 알루미늄캔류, 철캔류 및 유리류는 기존의 매립처리보다 재활용처리가 효과적이며, 종이류와 플라스틱류는 기존의 단순 소각처리보다 폐기물 고형원료 (SRF)로 만들어 에너지회수처리하는 편이 더 효과적이고, 가연성 기타류는 기존의 단순 소각처리가 재활용처리보다 효과적이다. 본 연구에서 제안한 폐자원별 처리방안을 적용하면 2,068,948 Million Btu의 에너지가 절감되고, 21,008 $MTCO_2E$의 온실가스가 저감되는 것으로 분석되었다. 총 에너지 절감량을 경제적 효과로 환산하면 연간 약 422억 원의 비용절감 효과가 있으며, 총 온실가스 저감량을 승용차의 이산화탄소 배출량으로 환산하면 연간 약 4,119대의 운행감축 효과가 있는 것으로 나타났다. 종량제봉투 내 가연성 물질의 저위발열량은 종이류 1,936 kcal/kg, 플라스틱류 5,079 kcal/kg, 가연성 기타류 2,462 kcal/kg로 분석되었다. 종이류와 플라스틱류를 적절하게 혼합한다면 SRF로 활용이 가능하고, 가연성 기타류는 저위발열량이 고형연료 기준을 충족시키지 못하고 구성성분들이 폐기물 고형연료로 사용하기엔 부적절하였다.
선형 무선 센서 네트워크를 위한 시각소인 기반의 순차적 거리측정 기법
박상준,강정호,김용철,김영주,Park, Sangjun,Kang, Jungho,Kim, Yongchul,Kim, Young-Joo 한국정보통신학회 2017 한국정보통신학회논문지 Vol.21 No.10
선형 무선 센서 네트워크는 일반적으로 순차적 1:1 매핑을 통해 토폴로지가 구성되므로 네트워크의 신뢰성이 우수하여 국경감시, 철도선로 감시 등의 국가 주요 기반 시설 감시에 사용되고 있다. 이러한 선형 무선 센서 네트워크의 구성 요소인 센서노드의 위치를 식별하기 위한 기술들은 주로 GPS 활용 기법과 AOA 및 RSSI 활용 기법들이 제안되었다. 그러나 GPS나 AOA를 이용하는 것은 노드 크기 및 제작비용에 영향을 미치므로 실용적인 센서 네트워크 구축이 쉽지 않고, RSSI 등은 전파환경과 장비의 특성에 따라 위치 식별도의 편차가 커지므로 오류 보정 알고리즘이 복잡해지는 단점이 있다. 본 논문에서는 센서노드들의 메시지 송신 및 수신에 대한 시각소인에 기반한 계층적 거리측정 기법을 제안한다. 제안된 기법은 GPS, AOA, 그리고 RSSI 등을 활용하지 않고 노드간의 측정된 거리를 이용하여 그들의 위치를 식별할 수 있다. 노드간의 거리측정을 위해 수행되는 5개의 알고리즘은 300 MHz 이상의 수정 진동자인 경우에 최대 1m 이내의 오차 범위에서 거리측정이 가능할 것으로 기대된다. Linear wireless sensor networks typically construct a network topology with a high reliability through sequential 1:1 mapping among sensor nodes, so that they are used in various surveillance applications of major national infrastructures. Most existing techniques for identifying sensor nodes in those networks are using GPS, AOA, and RSSI mechanisms. However, GPS or AOA based node identification techniques affect the size or production cost of the nodes so that it is not easy to construct practical sensor networks. RSSI based techniques may have a high deviation regrading location identification according to propagation environments and equipment quality so that complexity of error correction algorithm may increase. We propose a timestamps based sequential localization algorithm that uses transmit and receive timestamps in a message between sensor nodes without using GPS, AOA, and RSSI techniques. The algorithms for distance measurement between each node are expected to measure distance within up to 1 meter in case of an crystal oscillator of 300MHz or more.