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GPS 활용을 위한 좌표변환 매개변수 결정에 關한 硏究 : 가평군을 중심으로
양인태,김재철,유영걸,오명진 강원대학교 산업기술연구소 2003 産業技術硏究 Vol.23 No.A
The previous control point surveying. being standardized by trigonometric point which hasn't: been unified in the whole country and producing put into operation through complex calculation process, has many- problems about accurate results and economic side. Because most of trigonometric points that standardize a present surveying are in situation in top of the mountain, there are man)- difficulties in solving sight problems. Since trigonometric points are far away from one another, Differences are created because of limitation of point distance. observatory network construction and distribution of error In the information age. the study about acquiring three dimension surveying information that uses GPS has been processed as fast as acquiring topography information is getting important gradually. For utilizing GPS in surveying work. deciding transformation 7-Parameters that changes data about location information which is received by GPS receiver is important. In this study-. It is decided transformation 7-Parameters that can be used in ka-pyoung area by using GPS sun-el-ing production that had put into operation.
Kim, Hyeongi,Kim, MinJung,Yoon, Young Hoon,Nguyen, Quoc Hai,Kim, Il Tae,Hur, Jaehyun,Lee, Seung Geol Elsevier 2019 ELECTROCHIMICA ACTA Vol.293 No.-
<P><B>Abstract</B></P> <P>A nanocomposite comprised of a bimetallic alloy of antimony (III) telluride embedded in a hybrid matrix of titanium carbide with amorphous carbon is synthesized via facile, scalable, and inexpensive high energy mechanical milling. The Sb<SUB>2</SUB>Te<SUB>3</SUB>-TiC-C nanocomposite is composed of nanosized Sb<SUB>2</SUB>Te<SUB>3</SUB> and TiC particles homogeneously dispersed in amorphous carbon, as characterized by X-ray diffraction and high-resolution transmission electron microscopy. Electrochemical measurements show that the Sb<SUB>2</SUB>Te<SUB>3</SUB>-TiC-C exhibits enhanced electrochemical reversibility, great cyclability, and high-rate capability compared to Sb<SUB>2</SUB>Te<SUB>3</SUB>-C and Sb<SUB>2</SUB>Te<SUB>3</SUB>. Additionally, the optimum TiC content is determined based on electrochemical performances. Among all Sb<SUB>2</SUB>Te<SUB>3</SUB>-TiC-C nanocomposites tested, Sb<SUB>2</SUB>Te<SUB>3</SUB>-TiC(30%)-C exhibits the best performances in terms of reversible volumetric capacity (463 mAh cm<SUP>−3</SUP> over 600 cycles, 80% retention) and high rate capability (5000 mA g<SUP>−1</SUP>, 80% of its capacity at 100 mA g<SUP>−1</SUP>). The improvement of electrochemical performance with optimal TiC content is attributed to the appropriate amount of TiC-C that acted as a mechanical buffer and highly conductive matrix during cycling while minimizing capacity sacrifices. The mechanism of lithium ion storage on Sb and Te in Sb<SUB>2</SUB>Te<SUB>3</SUB>-TiC-C is also investigated during the charge/discharge process.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Sb<SUB>2</SUB>Te<SUB>3</SUB>-TiC-C nanocomposite was synthesized by heat treatment and HEMM. </LI> <LI> Employment of TiC into Sb<SUB>2</SUB>Te<SUB>3</SUB>-C improved electrochemical performances. </LI> <LI> Sequential reactions between Sb or Te and Li + mitigates volume change. </LI> <LI> Optimum TiC content in nanocomposite was further determined experimentally. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>Nanocomposite of Sb<SUB>2</SUB>Te<SUB>3</SUB>-TiC-C is synthesized via a simple and scalable high-energy mechanical milling process and heat treatment as a high-performance anode material for lithium-ion batteries. The appropriate amount of TiC formation into Sb<SUB>2</SUB>Te<SUB>3</SUB>-C significantly improves the electrochemical performances.</P> <P>[DISPLAY OMISSION]</P>
Kim, Dae Suk,Kim, Dong Hyun,Lee, Hemin,Jee, Hyunjoong,Lee, Young,Chang, Min-youl,Kwak, Taek-jong,Kim, Chul-Hong,Shin, Young-Ah,Lee, Jeung-Hoon,Yoon, Tae-jin,Lee, Min-Geol S. Karger AG 2013 International archives of allergy and immunology Vol.162 No.2
<P>Abstract </P><P>No abstract available </P><P>Copyright © 2012 S. Karger AG, Basel</P>
Clinical Course of Chronic Spontaneous Urticaria in the Korean Adult Population
Kim, Yoon Seob,Park, Sang Hyun,Han, Kyungdo,Lee, Ji Hyun,Kim, Nack In,Roh, Joo Young,Seo, Seong Jun,Song, Hae Jun,Lee, Min-Geol,Choi, Jee Ho,Park, Young Min The Korean Academy of Asthma, Allergy and Clinical 2018 Allergy, Asthma & Immunology Research Vol.10 No.1
<P>Knowledge of the clinical course of chronic spontaneous urticaria (CSU) remains unclear. The purpose of our study was to investigate the clinical course of CSU in the Korean adult population. Each patient in the CSU group who was defined by disease codes between 2003 and 2007 was tracked whether he or she went into remission or not until 2013. Kaplan-Meier survival analysis was carried out to analyze remission, and log-rank tests were performed for between-group comparisons. Demographic differences between subjects who went into remission 1 year after the initial diagnosis and those who did not were analyzed using χ<SUP>2</SUP> tests. A total of 13,969 subjects were included in the CSU group. The 1-, 2-, 3-, 4-, and 5-year remission rates of CSU were 21.5%, 33.0%, 38.9%, 42.6%, and 44.6%, respectively. The proportion of subjects in the 65+ age group (<I>P</I>=0.050) and with male gender (<I>P</I>=0.002) was significantly higher among subjects who did not go into remission 1 year after the initial diagnosis. Our study indicates that CSU could have a more persistent course than previously reported.</P>
Re-irradiation of recurrent esophageal cancer after primary definitive radiotherapy
Kim, Young Suk,Lee, Chang Geol,Kim, Kyung Hwan,Kim, Taehyung,Lee, Joohwan,Cho, Yona,Koom, Woong Sub The Korean Society for Radiation Oncology 2012 Radiation Oncology Journal Vol.30 No.4
Purpose: For recurrent esophageal cancer after primary definitive radiotherapy, no general treatment guidelines are available. We evaluated the toxicities and clinical outcomes of re-irradiation (re-RT) for recurrent esophageal cancer. Materials and Methods: We analyzed 10 patients with recurrent esophageal cancer treated with re-RT after primary definitive radiotherapy. The median time interval between primary radiotherapy and re-RT was 15.6 months (range, 4.8 to 36.4 months). The total dose of primary radiotherapy was a median of 50.4 Gy (range, 50.4 to 63.0 Gy). The total dose of re-RT was a median of 46.5 Gy (range, 44.0 to 50.4 Gy). Results: The median follow-up period was 4.9 months (range, 2.6 to 11.4 months). The tumor response at 3 months after the end of re-RT was complete response (n = 2), partial response (n = 1), stable disease (n = 2), and progressive disease (n = 5). Grade 5 tracheoesophageal fistula developed in three patients. The time interval between primary radiotherapy and re-RT was less than 12 months in two of these three patients. Late toxicities included grade 1 dysphagia (n = 1). Conclusion: Re-RT of recurrent esophageal cancer after primary radiotherapy can cause severe toxicity.
Kim, Yong Hoon,Her, Ae-Young,Choi, Byoung Geol,Choi, Se Yeon,Byun, Jae Kyeong,Baek, Man Jong,Ryu, Yang Gi,Park, Yoonjee,Mashaly, Ahmed,Jang, Won Young,Kim, Woohyeun,Choi, Jah Yeon,Park, Eun Jin,Na, Ji Williams & Wilkins Co 2018 Medicine Vol.97 No.35
<P><B>Abstract</B></P><P>Left ventricular hypertrophy (LVH) is associated with increased risk for vascular events and mortality. This study investigated 8-year clinical outcomes of hypertensive patients with LVH who underwent percutaneous coronary intervention (PCI) with drug-eluting stents (DES) compared with hypertensive patients without LVH.</P><P>A total of 1704 consecutive hypertensive patients who underwent PCI from 2004 to 2014 were enrolled. We classified them into either the LVH group (n = 406) or the control group (without LVH, n = 1298). LVH was defined by LV mass index > 115 g/m<SUP>2</SUP> in men and > 95 g/m<SUP>2</SUP> in women. After propensity score matched (PSM) analysis, 2 PSM groups (366 pairs, n = 732, c-statistic = 0.629) were generated.</P><P>For up to 8 years, the LVH group showed a higher incidence of cardiac death (4.4% vs 1.2%, log-rank <I>P</I> = .023, hazard ratio: 3.371, 95% confidence interval: 1.109–10.25; <I>P</I> = .032) compared with the control group. However, there were no significant differences between the 2 groups in the incidence of total death, myocardial infarction, revascularization, and major adverse cardiac events up to 8 years.</P><P>LVH in hypertensive patients who underwent successful PCI with DES was associated with higher incidence of cardiac death up to 8 years of follow-up. More careful managements and clinical follow-up are needed and treatment strategies should specifically focus to target prevention and reversal of LVH in hypertensive patients.</P>
Cytotoxicity of Root Canal Sealers Containing Calcium Hydroxide
Kim, In-Geol,Han, Se-Hee,Cho, Young-Gon,Lee, Sang-Bae,Kim, Kwang-Mahn,Kim, Kyoung-Nam Korean Academy of Dental Science 2009 Journal of korean dental science Vol.2 No.1
The purpose of this study was to investigate the possibility to reduce the toxicity of oil based root canal sealers containing calcium hydroxide using MTT & agar overlay assays. Thus some formulations of traditional root canal sealers were replaced with oil-soluble solvents and experimental root canal sealers manufactured. In MTT assay, Cell viability of all experimental sealers in addition with oil soluble solvents were observed significantly higher than both control groups, especially according to replace zinc and/or calcium ion components. Also agar overlay assay was appeared moderate to no cell responses into modifying both zinc and/or calcium ion components and oil soluble solvent weight. Authors found the reducing effect of cell toxicity through significant role of oil soluble solvent factor into root canal sealer containing calcium hydroxide.
Re-irradiation of recurrent esophageal cancer after primary definitive radiotherapy
Young Suk Kim,Chang Geol Lee,Kyung Hwan Kim,Taehyung Kim,Joohwan Lee,Yona Cho,Woong Sub Koom 대한방사선종양학회 2012 Radiation Oncology Journal Vol.30 No.3
Purpose: For recurrent esophageal cancer after primary definitive radiotherapy, no general treatment guidelines are available. We evaluated the toxicities and clinical outcomes of re-irradiation (re-RT) for recurrent esophageal cancer. Materials and Methods: We analyzed 10 patients with recurrent esophageal cancer treated with re-RT after primary definitive radiotherapy. The median time interval between primary radiotherapy and re-RT was 15.6 months (range, 4.8 to 36.4 months). The total dose of primary radiotherapy was a median of 50.4 Gy (range, 50.4 to 63.0 Gy). The total dose of re-RT was a median of 46.5 Gy (range, 44.0 to 50.4 Gy). Results: The median follow-up period was 4.9 months (range, 2.6 to 11.4 months). The tumor response at 3 months after the end of re-RT was complete response (n = 2), partial response (n = 1), stable disease (n = 2), and progressive disease (n = 5). Grade 5 tracheoesophageal fistula developed in three patients. The time interval between primary radiotherapy and re-RT was less than 12 months in two of these three patients. Late toxicities included grade 1 dysphagia (n = 1). Conclusion: Re-RT of recurrent esophageal cancer after primary radiotherapy can cause severe toxicity.
Kim Woo Young,Kim Seung-Jin,Seo Hye-rin,Yang Yoonyong,Lee Jong Seok,Hur Moonsuk,Lee Byoung-Hee,Kim Jong-Geol,Oh Min-Kyu 한국미생물학회 2024 The journal of microbiology Vol.62 No.7
Production of medium chain length polyhydroxyalkanoate (mcl-PHA) was attempted using Pseudomonas gessardii NIBRBAC000509957, which was isolated from Sunchang, Jeollabuk-do, Republic of Korea (35°24′27.7"N, 127°09′13.0"E) and effectively utilized acetate and formate as carbon sources. We first evaluated the utilization of acetate as a carbon source, revealing optimal growth at 5 g/L acetate. Then, formate was supplied to the acetate minimal medium as a carbon source to enhance cell growth. After overexpressing the acetate and formate assimilation pathway enzymes, this strain grew at a significantly higher rate in the medium. As this strain naturally produces PHA, it was further engineered metabolically to enhance mcl-PHA production. The engineered strain produced 0.40 g/L of mcl-PHA with a biomass content of 30.43% in fed-batch fermentation. Overall, this strain can be further developed to convert acetate and formate into valuable products.