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정기범(Jeong Gi-Beom) 역사실학회 2002 역사와실학 Vol.22 No.-
In history, Eumseong(陰城) area has been an important traffic function through the south and north, even in these days. In this paper, I have used a kind of regional historic method for traffic roads and settlements of Eumseong(陰城). I have also examined in a restoration and function of old traffic roads, a formation, development and function of settlements for characteristic history. In ancient traffic roads of Eumseong(陰城), at first, Goguryeo built a preliminary road from Pyeongyang(平壤) to Chungju(忠州) when they advanced to Han river area, and when they opposed with Shilla which built the military road from Cheongju(淸州), Jungpyeong(曾坪), Geyribryeong(鷄立嶺) to Goesan(槐山) that the road went through Eumseong(陰城) area. The second, when Shilla advanced the Han River area, they built Samnyeon-castle(三年山城) in Boeun(報恩). The debouche of the Han River area were estimated from Boeun(報恩)→Miwon(米院)→Jeungpyeng(曾坪)→Jincheon(鎭川)→Eumseong Mang-icastle(望夷山城)→Juksan(竹山) to Hanam(河南) join Seoul direction, from Jincheon(鎭川)→Eumseong(陰城) Mang-icastle(望夷山城)→Icheon(利川) to Hanam(河南) join Seoul direction. Both of roads passed Eumseong(陰城) area. Nowadays, westside of Eumseong(陰城) area which went through between the east and west of Mang-icastle(望夷山城) in Yangdeokri(良德里) in Samseongmyeon(三成面). The third, Geyripryeong(鷄立嶺) connected between the Han River area and the River Nakdong area from Shilla ages to Goryeo ages which is a ridge of road which was the main road from middle area of Korea to Youngnam(嶺南) area. Shilla advanced Cheongju(청주) area though Geyribryeong(鷄立嶺). The traffic road were split from the north west side road(from Chungju(忠州)→Eumseong(陰城)→Gamgok(甘谷)→Janghowon(長湖院) to Seoul) and the westside road(from Chungju(忠州) to Eumseong(陰城). The westside road was estimated from Chungju(忠州) Gageum(可金)→Judook(周德)→Eumseong(陰城) Seokinricastle(碩人里山城), Sujeongcastle(水精山城)→Eumseong(陰城) Wonnam(遠南) Odaecastle(五垈山城)→songorihyun(松五里峴)→Jeungpyeng(曾坪)→Miwon(米院). And from Gamgok(甘谷) of Eumseong(陰城) area to Ichoon(利川) of the north westside traffic road were two ways. One of the road was from Chungju(忠州), Gageum(可金) Tappyoongri(塔坪里)→Ipsukmaeul(立石)→Noeunmyen(老隱面) yeonhari(蓮河里)→Beobdongri(法洞里)→Soltigogae→Eumseong(陰城) Gamgok(甘谷)→Janghowon(長湖院) to Icheon(利川), and the other way was from Chungju(忠州)→Gageum(可金) Tappyeongri(塔坪里)→Gaguem(可金)→Angseong(仰城)Neungam(陵岩)→Naedonggogae(內洞)→Imungogae→Eumseong(陰城) Gamgok(甘谷) Munchon(文村)→Janghowon(長湖院) to Ichron(利川) The fourth, the traffic road of Eumseong(陰城) area in Goryeo ages was from Namkeong(南京)→Gwangju(廣州)→Icheon(利川)→Eumseong(陰城) Mugeuk(無極), Yongan(龍安)→Danworl(단월)→Chungju(忠州)→Yecheon(醴泉) to Andong(安東), and from Namkyung(南京)→Yongin(龍仁)→Yangji(陽智)→Juksan(竹山)→Eumseong(陰城)→Gamgok(南京)→Gaheung(可興) to Chungju(忠州). The fifth, from Youngnam(嶺南) main road in Joseon ages through Eumseong(陰城) area and the circumference was from Hanyang(漢江)→Yangji(陽智)→Juksan(竹山)→Seokwon(石院)→Gawnchon(館村)→Saenggeuk Gonjae(笙極昆在)→Cheongok(泉谷)→Jangjawulgogae→Morowon(毛老院)→Sungseon(崇善)→Yongan(龍安)→Geomdan(檢丹)→Dalcheon(達川)→Chungju(忠州)→Joryeong(鳥嶺) to Yeongnam(嶺南). From Seokwon(石院) to Jangjawulgogae in Eumseong(陰城). Eumseonghyeon(陰城縣) had 6 side of local road according to old record of literature and old map. From Seoul direction, the road had three section. (1) Eumseong(陰城)→Tanhyeon(炭峴)→Sinnimyen(新尼面) Morowon(毛老院) join with Yeongnam(嶺南) main road (2) Eumseong(陰城)→Sajeonggogae(沙丁)→Sajeongri(沙丁里)→Mugeuk(無極)→Dogwanri(道貫里)→Gwanchon(館村) join with Yongnam(嶺南) main road. (3) Eumseong(陰城)→Sincheonri(新泉里)→Gamujae(甘雨峙)→Sajeongri(沙丁里) join with the road of (2). The road of Chungju(忠州) direction were from Eumseong(陰城)→Baekhyeon(栢峴)→Bisanri(碑山里)→Judeok(周德) to Chungju(忠州) and from Eumseong(陰城)→Seokinri(碩人里)→Akhyeon(惡峴)→Bisanri(碑山里)→Judeo k(周德) to Chungju(忠州). The road of Cheongju(淸州) direction was from Eumseong(陰城)→Hadang(下唐) Yangheywon(楊惠院)→Haengchi(杏峙)-Bocheon(甫川)→Songorihyen(松五里峴)→Cheongan(淸安) to Cheongju(淸州). The road of Goesa
정기범(Jeong Kybum),최상곤(Choi Sang-Gon) 한국태양에너지학회 2010 한국태양에너지학회 논문집 Vol.30 No.3
Global warming and heat island make the outdoor air temperature ascend. Tall office buildings are covered with glass window facades as a design aspect and the portion of window area to facade area is increasing. Hence, cooling load for solar radiation passing through glass window is rising. Cooling air to a certain room is supplied equally despite the face of the room in most office buildings. Especially, the west part of the office cannot maintain the required temperature that occupant needs because of the solar heat coming through windows. In this study, we projected the water spray system to reduce the solar heat transfer and to reflect the solar ray through windows. We perform the experiments to evaluate the performance of the solar heat protection devices. We measured the room temperature of two separated office rooms for solar heat control devices. The investigation's results show that the water spray system is sufficient to the coated glass and the venetian blinds for the decrease of the solar heat inflow.
정기범(Gi Beom Jeong),박태원(Tae Won Park),박재흥(Jae Heung Park),정남호(Namho Chung) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.10
Considering the dynamic performance and stability of railroad vehicles has begun to grab the attention because of developing the high speed train recently. A development based on an analysis of dynamics and verification has to be required to study the stability of vehicle performance. Several ways of analysis were using the look-up table to apply the wheel-rail contact characteristics quickly whereas there is a constraint of the wheelset lateral displacement. In this study an development of searching the wheel-rail contact position has been provided. The 2-point contact between wheel and rail during the driving condition can be calculated by numerical analysis. Moreover a reliability is verified by comparing the result with a commercial program.
정기범(Kybum Jeong),최상곤(Sang Gon Choi) 대한설비공학회 2009 설비공학 논문집 Vol.21 No.1
The air sterilization systems are investigated experimentally in this paper. The goal is to reduce bacteria. mold and viruses in office air by using a UV sterilizer installed inside a partition panel and wall-mounted unit. These systems allow occupants to turn the system on/off and to control the incoming air speed and direction. The partition air sterilization system conditions and sterilizes the air, and then delivers the clean air into the personal task area through the partition panels, which are connected to the pressurized under-floor plenum. Room air exits through the return grills mounted on the ceiling. The wall-mounted air sterilization system sterilizes the air, and then delivers the clean air to the personal task area from the wall. In this study a full-size experimental environment is established to investigate the immunization performance of these air sterilization systems. A typical office space scale is used in this study in order to find an optimal system to achieve a sterilized healthy micro-environment. Multiple system parameters, including volume flow rate and velocity of supplied air, were regulated during the experiments. The more air contact these air sterilization systems had, the better disinfection performance. Over 90% of eradication ratios were obtained by these two air sterilization systems. The results indicate that these systems can efficiently disinfect office air contamination.
축류형 인공심장의 자기베어링 제어를 위한 와전류 센서 시스템 개발
안치범,문기철,정기석,남경원,이정주,선경,Ahn, C.B.,Moon, K.C.,Jeong, G.S.,Nam, K.W.,Lee, J.J.,Sun, K. 대한의용생체공학회 2007 의공학회지 Vol.28 No.2
The axial-flow type blood pump(XVAD) which has been developed in our group consists of mechanical parts (an impeller, a diffuser and a flow straightener) and electrical parts (a motor and a magnetic bearing). The magnetic bearing system fully levitates the impeller to remove mechanical coupling with other parts of the pump with constant gap, which needs non-contact type gap sensing. Conventional gap sensors are too large to be adopted to the implantable axial -flow type blood pump. Thus, in this paper, the compact eddy current type gap sensor system proper for the implantable axial-flow type blood pump was developed and its performance was evaluated in vitro. The developed eddy current type gap sensor system is a transformer type and has a differential probe. Sensor coil(probe) has small dimensions(6 mm diameter, 2 mm thickness) and its optimal inductance was determined as 0.068 mH for the measurement range of $0\sim3mm$. It could be manufactured with 130 turns of the 0.04 mm diameter copper coil. The characteristics of the developed eddy current type gap sensor system was evaluated by in vitro experiment. At experiment, it showed satis(actory performance to apply to the magnetic bearing system of the XVAD. It could measure the gap up to 3mm, but the linearity was decreased at the range of $1.8\sim3.0mm$. Moreover, it showed no difference in different media such as the water and the blood at the temperature range of $35\sim40^{\circ}C$.