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Pseudorabies 바이러스를 이용한 랫드 결장을 지배하는 중추신경핵의 동정
이성준,이봉희,김진상,강태천,이흥식,Yi, Seong-joon,Lee, Bong-hee,Kim, Jin-sang,Kang, Tae-chun,Lee, Heungshik S. 대한수의학회 1997 大韓獸醫學會誌 Vol.37 No.3
The present study was carried out to localize the central nuclei innervating the rat colon using pseudorabies virus-Bartha strain which has been known as a very useful neurotracer. The results were as follows. The central nuclei innervating the proximal colon were premotor area, subfornical organ, preoptic area in telencephalon, and paraventricular nucleus, bed nucleus of stria terminalis, retrochiasmatic area in the diencephalon, and periaqueductal gray, Edinger-Westphal nucleus, tegmental nucleus in the mesencephalon, and parabrachial nucleus, locus ceruleus, A5 area, $K{\ddot{o}}lliker$-Fuse nucleus, magnocellular reticular nucleus in the metencephalon, and nucleus tractus solitarius, A1 noradrenergic cell group, dorsal motor nucleus of vagus nerve, nucleus ambiguus, area postrema in the myelencephalon. In the spinal cord, the thoracic division had some nuclei innervating the proximal colon. The nuclei innervating the distal colon were paraventricular nucleus of the diencephalon, Edinger-Westphal nucleus of midbrain, and parabrachial nucleus, locus ceruleus, A5 area, $K{\ddot{o}}lliker$-Fuse nucleus, magnocellular reticular nucleus of the metencephalon, and nucleus tractus solitarius, dorsal motor nucleus of vagus nerve, nucleus ambiguus, area postrema in the myelencephalon. In the spinal cord, thoracic, lumbar and sacral division innervated the distal colon.
이성준,이흥식,Yi, Seong-joon,Lee, Heungshik S 대한수의학회 1994 大韓獸醫學會誌 Vol.34 No.4
This study was carried out to identify the craniometric characteristics of the skull of Korean native goat. The results were as follows; The skull index, cranial index, facial index, right orbital index and left orbital index were $55.86{\pm}2.14$, $59.97{\pm}3.68$, $107.03{\pm}5.71$, $92.22{\pm}4.54$and $90.47{\pm}5.48$, respectively. The ratio of facial length to cranial length was 1:1.15 and the ratio of length of cranial base to palatal length was 1:1.35. The skull length was more correlated to the facial length than to the cranial length(p<0.01). The skull width was more correlated to the width between foramina supraorbitales than to the width between foramina infraorbitales. It also showed negative correlation to the medial width between bases of processus cornualis but positive correlation to the lateral width between bases of processus cornualis(p<0.01). The width between tips of both horns showed high positive correlation to the medial width between processus cornualis, but negative correlation to the lateral width(p<0.01).
이성준,이흥식,Yi, Seong-joon,Lee, Heungshik S 대한수의학회 1994 大韓獸醫學會誌 Vol.34 No.3
This study was carried out to identify anatomical characteristics of the individual bones of the cranium of the Korean native goat. The pars lateralis and pans basilaris of the os occipitale were fused each other, whereas the squama occipitalis articulated with the pars lateralis, forming the sutrue. The sinus sphenoidale was formed in the corpus ossis presphenoidalis. The os prietale was observed as a single bone. In the os frontale, an fossa innominatum was found ventrolateral to the root of processus cornualis, and the orificium orbitale canalis supraorbitalis was also formed on the pars orbitalis. The meatus temporalis was formed in the medial side of the pars squama of the os temporalis. The lamina cribrosa of the os ethmoidale was membrane-like structure with many foramina. The labyrinth ethmoidalis was composed of four endoturbinalia and ten to twelve ectoturbinalia.
이성준,Lee, S.J. 한국전자통신연구원 2011 전자통신동향분석 Vol.26 No.6
2011년 7월에 도로명과 건물번호를 사용하는 새로운 주소 체계인 도로명주소가 고지되었다. 본 고에서는 100년 가까이 사용한 지번주소를 대체하기 위한 도로명주소와 관련 사업 등의 추진 동향을 살펴보고, 현재 추진상에서 쟁점이 되는 사항들과 도로명주소 등의 추진에 관련된 기술적인 이슈 및 동향 등에 대해서 살펴보기로 한다. 이를 위해서 기존 주소의 문제점 개선과 국제적인 표준 동향에 따르기 위한 도로명주소의 추진 상황과 국가의 기관별로 구역설정을 공통으로 활용하기 위한 구역번호의 추진 상황을 살펴본다. 도로명주소 추진 상황을 더욱 이해하는 차원에서 최근에 제기되고 있는 건물 단위의 행정구역과의 불일치 문제, 도로명의 표기 문제, 동과 공동주택 명칭 사용 제외 등에 대한 쟁점사항을 소개한다. 그리고 도로명주소와 관련된 기술적 이슈 및 동향들을 GIS 기술과의 결합, 데이터 정제 기술, 상세 주소의 정형화를 통한 데이터 호환, 정보시스템의 구현 및 연계 기술, 국제 표준화를 위한 대응, 우편물류 분야 측면에서 각각 살펴본다.
이성준,이흥식,강태천,Yi, Seong-joon,Lee, Heungshik S,Kang, Tae-cheon 대한수의학회 1995 大韓獸醫學會誌 Vol.35 No.3
This study was carried out to observe the differences of bony pelvis between male and female Korean native goat by the pelvimetry. The results represented that the middle transverse diameter(1:1.35), ventral transverse diameter(1:1.12), transverse diameter of pelvic outlet(1:1.22), right oblique diameter(1:1.09), the width between ruber ischii(1:1.15) and width of pubis(1:1.11) were shown significant differences(p<0.01) between male and female Korean native goat.
유지은,이성준,Yu, J.E.,Lee, S.J. 한국전자통신연구원 2022 전자통신동향분석 Vol.37 No.3
The Korean mobile service market has persistently grown with the number of subscribers and volume of mobile traffic. It shows the slow diffusion of 5G subscribers, and rapid growth of both the MVNO(Mobile Virtual Network Operator) market and unlocked mobile phones. Therefore, this study derives the direction of telcos' strategies and policy implications by empirically analyzing the usage and attitude of LTE and 5G subscribers. Our major findings are as follows: First, our current mobile service subscription market constitutes most long-term customers for their incumbent carriers only by device change from lock-in with bundle services. Mobile tariffs, data speed, and benefits of bundle services are important factors affecting choices and customers' satisfaction with a provider and intentions of churning to another. Second, demand and satisfaction for using 5G are less because speeds and service tariffs act as pain points for 5G services. Third, the users' high preferences for MVNOs and unlocked mobile phones are linked to their subscription to MVNOs' low-cost plans with unlocked mobile phones on online channels. These streams lead to a big change in the market competition that MNO(Mobile Network Operator)s' market shares are expected to decrease and MVNOs' shares will be increased by two times, in the near future. Therefore, MNOs need to change their distribution strategies from offline to online channels and try to resolve the stereotype, "mobile tariffs are expensive," by enhancing their service values. Finally, as consumers prefer one-stop service in the same channel regardless of the distribution channel, policies should focus on the consumers' needs for convenience rather than on the channel separation for perfectly unlocked mobile phones.