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Analysis on the Multi-Constellation SBAS Performance of SDCM in Korea
Lim, Cheol-Soon,Park, Byungwoon,So, Hyoungmin,Jang, Jaegyu,Seo, Seungwoo,Park, Junpyo,Bu, Sung-Chun,Lee, Chul-Soo The Institute of Positioning 2016 Journal of Positioning, Navigation, and Timing Vol.5 No.4
A Satellite Based Augmentation System (SBAS) provides differential correction and integrity information through geostationary satellite to users in order to reduce Global Navigation Satellite System (GNSS)-related errors such as ionospheric delay and tropospheric delay, and satellite orbit and clock errors and calculate a protection level of the calculated location. A SBAS is a system, which has been set as an international standard by the International Civilian Aviation Organization (ICAO) to be utilized for safe operation of aircrafts. Currently, the Wide Area Augmentation System (WAAS) in the USA, the European Geostationary Navigation Overlay Service (EGNOS) in Europe, MTSAT Satellite Augmentation System (MSAS) in Japan, and GPS-Aided Geo Augmented Navigation (GAGAN) are operated. The System for Differential Correction and Monitoring (SDCM) in Russia is now under construction and testing. All SBASs that are currently under operation including the WAAS in the USA provide correction and integrity information about the Global Positioning System (GPS) whereas the SDCM in Russia that started SBAS-related test services in Russia in recent years provides correction and integrity information about not only the GPS but also the GLONASS. Currently, LUCH-5A(PRN 140), LUCH-5B(PRN 125), and LUCH-5V(PRN 141) are assigned and used as geostationary satellites for the SDCM. Among them, PRN 140 satellite is now broadcasting SBAS test messages for SDCM test services. In particular, since messages broadcast by PRN 140 satellite are received in Korea as well, performance analysis on GPS/GLONASS Multi-Constellation SBAS using the SDCM can be possible. The present paper generated correction and integrity information about GPS and GLONASS using SDCM messages broadcast by the PRN 140 satellite, and performed analysis on GPS/GLONASS Multi-Constellation SBAS performance and APV-I availability by applying GPS and GLONASS observation data received from multiple reference stations, which were operated in the National Geographic Information Institute (NGII) for performance analysis on GPS/GLONASS Multi-Constellation SBAS according to user locations inside South Korea utilizing the above-calculated information.
LIM, SUNG-CHUL,HONG, RAN Spandidos Publications 2011 Oncology letters Vol.2 No.6
<P>The aim of this study was to examine the role of Programmed cell death 4 (Pdcd4) in colorectal adenocarcinoma (CRA). Pdcd4 expression was observed in both the nucleus and cytoplasm in colorectal adenocarcinoma, whereas Pdcd4 was expressed in the nucleus in normal colonic epithelial cells. Loss or weak expression of Pdcd4 was identified in 44 cases (40.7%) of cancer cells. Pdcd4 expression was associated with an increase in the nodal and clinical stage (p=0.022 and p=0.016, respectively). Nuclear staining was identified in 66 cases (61.15%), with no correlation with clinicopathological factors. Conversely, cytoplasmic staining for Pdcd4 was observed in 45 cases (41.7%), and increased according to nodal and clinical stage (p=0.011 and p=0.009, respectively), indicating that aberrant Pdcd4 expression leads to tumor progression. However, Pdcd4 expression was not correlated to disease-free survival time. This study demonstrated that during the tumorigenesis of CRA, loss of nuclear Pdcd4 expression occurs, and during tumor progression, aberrant cytoplasmic expression is present, suggesting a higher clinical stage. Although loss of Pdcd4 was not significantly correlated with survival time, as the prognosis of colorectal cancer varies depending on clinical stage including invasion depth, nodal status and metastatic status, cytoplasmic Pdcd4 expression may be a favorable prognostic marker in CRA.</P>
A New Rice Variety Adaptable to Direct Seeding with Lodging Tolerance, "Nonghobyeo"
Sang Jong Lim,Un Sang Yeo,No Bong Park,Byeong Geun Oh,Sae Jun Yang,Ho Yeong Kim,Heung Gu Hwang,You Cheon Song,Do Yeon Kwak,Jong Rae Kang,Woon Goo Ha,Jeom Sik Lee,Soon Chul Kim 한국육종학회 2003 한국육종학회지 Vol.35 No.1
Nonghobyeo', was derived from a mutant of Milyang 95, by pure line selection method, which was developed from the single cross between Chukei 1016 and Milyang 79, by the rice breeding team of National Yeongnam Agricultural Experiment Station (NYAES) in 19
Lim, Soo,Shin, Hayley,Kim, Min Ju,Ahn, Hwa Young,Kang, Seon Mee,Yoon, Ji Won,Choi, Sung Hee,Kim, Ki Woong,Song, Jung Han,Choi, Sang Il,Chun, Eun Ju,Shin, Chan Soo,Park, Kyong Soo,Jang, Hak Chul Issued for the Endocrine Society by the Williams W 2012 The Journal of clinical endocrinology & metabolism Vol.97 No.1
<P>Recent studies suggest an association between vitamin D activity and cardiometabolic risk.</P>
Appendectomy in retrograde order for complete removal of endometriosis.
Lim, Myong Cheol,Song, Yong Jung,Lee, Dong Ock,Jung, Dae Chul,Yoo, Chong-Woo,Park, Sang-Yoon Parthenon Pub 2009 Gynecological endocrinology Vol.25 No.12
<P>Endometriosis frequently involves the intestines. Appendectomy would be often required as part of complete removal of endometriosis. We present a patient with endometriosis who required very difficult appendectomy. For complete removal of endometriosis, hysterectomy, bilateral salpingooophorectomy, low anterior resection and accompanying pelvic peritonectomy were performed through a mid-line incision. Unexpectedly, the appendiceal tip was attached to peri-hepatic tissue with the appendix adhered to the surrounding peritoneum and bowel. Completion of the appendectomy was possible in retrograde order after extension of the surgical incision above the umbilicus. Our findings suggest that preoperative image evaluation for location or position of the appendix might be helpful in patients with suspected endometriosis to offer correct counselling, obtaining adequate consent, determining the optimal surgical approach and scheduling opportune intraoperative consultation by a colorectal surgeon.</P>