러시아 석유산업의 구조 변화와 푸틴 정부의 석유정책

홍성원(Hong Sung Won) 한국슬라브유라시아학회 2005 슬라브학보 Vol.20 No.2

The purpose of this paper is to study the process of change in ownership structure in the Russian oil industry and Putin's oil policy and its implication. For this purpose, author examined privatisation process of Russian oil industry. Russian oil industry has been completely restructured in the process of privatisation program of the 1990s. In result, vertically-integrated type oil companies was established during the terms of former President Yeltsin. After restructuring of russian oil industry, ownership structure was completely changed from state's control to private ownership. Since Yukos scandal happened, the dominant position of vertically-integrated oil companies declined and Putin government's control about oil production and export was more and more tightening. President Putin attempts to take back control of the oil industry. At present russian government use various policy as means of more controlled development of oil production and export. Taxation, licensing and oil pipeline system are considered as the most efficient tools. Based on the results of this study, author provides some implications about Putin's oil policy. Various statistics exactly showed efficiency of private oil companies in operating oil production and export. So author suggests Putin government take steps to guarantee profit of vertically integrated oil company and tax their excess oil rent at the rational level. Establishment of stable business environment suitable for activities of private oil company will be a win-win strategy for each other.

3분과 : 가선집재작업에서의 작업 생산성 및 비용 분석

한원성 ( Won Sung Han ),한한섭 ( Han Sup Han ),김남훈 ( Nam Hun Kim ),차두송 ( Du Song Chu ),조구현 ( Koo Hyun Cho ),민도홍 ( Do Hong Min ),권기철 ( Ki Cheol Kwon ) 한국임학회 2014 한국산림과학회지 Vol.103 No.1

본 연구에서는 임목수확작업에 사용되는 집재기계의 작업효율성을 분석하여 경사가 급한(20° 이상) 작업조건에 적합한 가선계 집재기계를 선정하는데 기초 정보를 제공하고자, 타워야더(RME-300T), 트랙터부착형 집재기(일명: 춘천집재기), 트랙터윈치(FARMI) 등에 의한 집재작업에서의 작업생산성 및 비용을 비교 분석하였다. 평균 흉고직경이 20 cm, 집재거리 60 m, 가로집재거리 10 m, 그리고 기계이용률이 70%인 동일한 작업 조건에서 작업이 이루어질 경우, 타워야더의 1일 집재작업 생산성은 33.04 m3/일, 트랙터부착형 집재기는 38.47 m3/일, 그리고 트랙터윈치는 14.17 m3/일으로 분석되었으며, 이에 따른 집재작업비용은 각각 25,105원/m3, 20,520원/m3, 37,835원/m3으로 나타났다. 동일한 작업조건에서 집재거리에 따른 각 집재기계별 작업효율성을 비교하였을 경우, 집재거리가 40 m 이내로 짧을 경우에는 트랙터윈치에 의한 집재작업이 효율적이며, 40~140 m의 집재거리에서는 춘천집재기가, 140 m 이상의 장거리 집재작업에서는 타워야더가 가장 효율적인 것으로 나타났다. This study was conducted to provide field-based harvesting study information which can be used to select an optimal cable system for certain work conditions on steep grounds (>20° ground slope) in Korea. Toaccomplish this study objectives, we evaluated three cable yarding systems (RME-300T tower-yarder, Chuncheontower-yarder, FARMI tractor winch) working in typical work conditions for their yarding productivity and operational efficiency. Those yarders are commonly used for removing logs or trees on steep grounds in Korea. Under the same work conditions (average DBH of tree to be cut, 20 cm; yarding distance, 60 m; lateral yardingdistance, 10 m; and machine utilization rate, 70%), the average productivities were 33.04 m3/day, 38.47 m3/day, and 14.17 m3/day for RME-300T, Chuncheon tower-yarder, and FARMI, respectively. Our standardized cost comparison study also showed that the yarding cost was highest at 37,835 won/m3 with FARMI, followed byRME-300T at 25,105 won/m3 for the same work conditions. We found the lowest yarding cost with the Chuncheon tower-yarder at 20,520 won/m3 which was resulted primarily from high yarding productivity at theyarding distance (60 m). Our analysis suggested that a small machine such as FARMI could be a low-costyarding machine option for a cable yarding job with a short yarding distance (40 m or less). The Chuncheontower-yarder is well suited for a mid-range yarding distance job in Korea, ranged between 40 to 140 m. Ifyarding distance were longer than 140 m, the RME-300T tower yarder appears to be most cost-effective.

Growth Inhibition of Colon Cancer through Inactivation of STAT3 Pathway by IL-10 and IL-1ra Released from Murine Macrophage

Jin Tae Hong, Dohee Won1, Mi Hee Park, Sun Mi Kown, Miran Jo, Sang-Yoon Nam, Beom Jun Lee, Young Won Yun, Ki-Wan Oh, Sang Bae Han 충북대학교 동물의학연구소 2011 Journal of Biomedical and Translational Research Vol.12 No.4

The objective of this study was to determine the effect of macrophages on growth of human colon cancer cells. The results showed that co-culture of colon cancer cells with macrophages inhibited the growth of colon cancer cells (HCT116 and SW620) depending on the number of macrophages, RAW 264.7 cells, and activated THP-1 cells accompanied by down regulation of pSTAT3 in cancer cells. We also found that expression and release of cancer cell growth inhibitory cytokines, IL-1 receptor antagonist (IL-1ra) and IL-10, was increased in macrophages. Blocking of the STAT3 pathway with specific inhibitor and siRNA of STAT3 abolished the growth of colon cancer cells and expression of IL-1ra and IL-10. In addition, neutralization of IL-1ra and IL-10 with antibodies resulted in reversal of macrophage-induced inhibition of cancer cell growth. These data showed that IL-1ra and IL-10 released from macrophages inhibit growth of colon cancer cells through inhibition of the STAT3 pathway

권역심뇌혈관질환센터 사업의 비용-편익 분석

김병호 ( Byung Ho Kim ),감신 ( Sin Kam ),배상근 ( Sang Geun Bae ),김건엽 ( Keon-yeop Kim ),이원기 ( Won Kee Lee ),홍남수 ( Nam-soo Hong ),박형근 ( Hyeung-keun Park ),이혜진 ( Heyjean Lee ),조은정 ( Eun-jung Cho ),채성철 ( Shung C 한국보건정보통계학회(구 한국보건통계학회) 2017 보건정보통계학회지 Vol.42 No.1

Objectives: This study was conducted to investigate economic feasibility of operating Regional Cardiocerebrovascular Centers using cost-benefit analysis. Methods: The current study assessed cost and benefit data collected from nine hospitals which were designated as Regional Cardiocerebrovascular Centers between 2008 and 2010. Results: The operation of Regional Cardiocerebrovascular Centers reduced mortality rate and length of stay due to acute myocardial infarction and stroke and also decreased disability occurred after stroke. The total calculated cost of operating nine Regional Cardiocerebrovascular Centers was 19.85-22.30 billion won and the minimum benefit calculated was 23.98 billion won. Applying the maximum cost and the minimum benefit, the net benefit was 1.68 billion won, which is estimated to 190 million won per Regional Cardiocerebrovascular Center. Conclusions: The present study revealed that the operation of Regional Cardiocerebrovascular Centers was economically beneficial. The benefit would be larger if intangible benefit such as the long-term effects to community hospitals and enhancement of quality of life of patients and their families are considered.

Rapid selection of astaxanthin-hyperproducing <i>Haematococcus</i> mutant via azide-based colorimetric assay combined with oil-based astaxanthin extraction

Hong, Min Eui,Choi, Hong Il,Kwak, Ho Seok,Hwang, Sung-Won,Sung, Young Joon,Chang, Won Seok,Sim, Sang Jun Elsevier Applied Science 2018 Bioresource technology Vol.267 No.-

<P><B>Abstract</B></P> <P>The aim of this work was to develop a new approach for simple and high-throughput selection of astaxanthin-hyperproducing <I>Haematococcus</I> mutants through a sequential combination method of azide-based colorimetric assessment and oil-based astaxanthin quantification. Randomly mutagenized cells were spotted on solid culture medium containing 50 µM of sodium azide to accelerate the biosynthesis of astaxanthin. After 3 days, highly-induced mutants were preliminarily isolated by visual inspection and their astaxanthin accumulations were rapidly quantified by soybean oil-based extraction method. On the whole, the selected mutants showed reduced vegetative growth rates but eventually exhibited higher astaxanthin productions than the parental strain owing to their improved inductive growths. Among them, M13 showed 174.7 ± 5.69 mg L<SUP>−1</SUP> of the highest astaxanthin production, which is 1.59-times higher than that of wild-type. This wide-scope screening method expedites both upstream and downstream astaxanthin quantification, making it a useful tool for isolating microalgae with high astaxanthin production.</P> <P><B>Highlights</B></P> <P> <UL> <LI> NaN<SUB>3</SUB> was used for colorimetric selection of highly inducible <I>H. pluvialis</I> mutants. </LI> <LI> Soybean oil was used for rapid extraction and analysis of astaxanthin in the cells. </LI> <LI> 88.5% of the selected mutants showed improved astaxanthin productions. </LI> <LI> A selected mutant, M13, produced 174.7 mg L<SUP>−1</SUP> of astaxanthin in a 5 L PBR. </LI> <LI> Astaxanthin titer of the mutant increased 59% compared to that of the wild type. </LI> </UL> </P>

APC‐EDFA‐based scintillation‐suppressed photodetection in satellite optical communication

Hong, Yan‐,Qing,Shin, Won‐,Ho,Han, Sang‐,Kook John Wiley Sons, Inc. 2019 MICROWAVE AND OPTICAL TECHNOLOGY LETTERS Vol.61 No.10

<P><B>Abstract</B></P><P>This article proposes automatic power control (APC)‐erbium‐doped fiber amplifier (EDFA)‐based scintillation‐suppressed photodetection in satellite optical communication (SOC). It is mainly based on the dynamic gain characteristic of APC‐EDFA. In order to improve the performance, high pass filter (HPF) and Manchester on‐off‐keying (M‐OOK) are introduced as supplemental methods. The proposed scheme is evaluated experimentally under various turbulence channel strengths. The experimental results show that the scintillation effect is suppressed using APC‐EDFA with pump power reduction compared to gain saturation, and an approximate 5.83 dB signal‐to‐noise ratio improvement is obtained compared to adaptive threshold decision with instantaneous turbulence channel state information under a scintillation index of 0.2990.</P>

Oligonucleotide Microarrays with High Discriminating Power for the Detection of Single Nucleotide Variations in the p53 Gene

Hong, Bee-Hak,Oh, Soon-Jin,Ju, Ji-Min,Hong, Bong-Jin,Jang, Do-Soo,Yun, Young-Sung,Park, Joon-Won,Choi, Kwan-Yong Korean Society for Molecular and Cellular Biology 2010 Molecules and cells Vol.30 No.6

Fentanyl Sparing Effects of Combined Ketorolac and Acetaminophen for Outpatient Inguinal Hernia Repair in Children

Hong, Jeong-Yeon,Won Han, Sang,Kim, Won Oak,Kil, Hae Keum Williams and Wilkins Co 2010 The Journal of urology Vol.183 No.4

<P><B>Purpose</B></P><P>In this prospective, randomized, double-blinded study we sought to evaluate the efficacy and safety of combined use of intravenous ketorolac and acetaminophen in small children undergoing outpatient inguinal hernia repair.</P><P><B>Materials and Methods</B></P><P>We studied 55 children 1 to 5 years old who were undergoing elective repair of unilateral inguinal hernia. After induction of general anesthesia children in the experimental group (28 patients) received 1 mg/kg ketorolac and 20 mg/kg acetaminophen intravenously. In the control group (27 patients) the same volume of saline was administered. All patients received 1 μg/kg fentanyl intravenously before incision. We also evaluated the number of patients requiring postoperative rescue fentanyl, total fentanyl consumption, pain scores and side effects.</P><P><B>Results</B></P><P>Significantly fewer patients receiving ketorolac-acetaminophen received postoperative rescue fentanyl compared to controls (28.6% vs 81.5%). A significantly lower total dose of fentanyl was administered to patients receiving ketorolac-acetaminophen compared to controls (0.54 vs 1.37 μg/kg). Pain scores were significantly higher in the control group immediately postoperatively but eventually decreased. The incidences of sedation use (55.6% vs 25.0%) and vomiting (33.3% vs 10.7%) were significantly higher in controls.</P><P><B>Conclusions</B></P><P>Preoperative intravenous coadministration of ketorolac and acetaminophen is a simple, safe and effective method for relieving postoperative pain, and demonstrates highly significant fentanyl sparing effects in small children after outpatient inguinal hernia repair.</P>

Cone penetrometer incorporated with dynamic cone penetration method for investigation of track substructures

Won-Taek Hong,Yong-Hoon Byun,Sang Yeob Kim,Jong-Sub Lee 국제구조공학회 2016 Smart Structures and Systems, An International Jou Vol.18 No.2

The increased speed of a train causes increased loads that act on the track substructures. To ensure the safety of the track substructures, proper maintenance and repair are necessary based on an accurate characterization of strength and stiffness. The objective of this study is to develop and apply a cone penetrometer incorporated with the dynamic cone penetration method (CPD) for investigating track substructures. The CPD consists of an outer rod for dynamic penetration in the ballast layer and an inner rod with load cells for static penetration in the subgrade. Additionally, an energy-monitoring module composed of strain gauges and an accelerometer is connected to the head of the outer rod to measure the dynamic responses during the dynamic penetration. Moreover, eight strain gauges are installed in the load cells for static penetration to measure the cone tip resistance and the friction resistance during static penetration. To investigate the applicability of the developed CPD, laboratory and field tests are performed. The results of the CPD tests, i.e., profiles of the corrected dynamic cone penetration index (CDI), profiles of the cone tip and friction resistances, and the friction ratio are obtained at high resolution. Moreover, the maximum shear modulus of the subgrade is estimated using the relationships between the static penetration resistances and the maximum shear modulus obtained from the laboratory tests. This study suggests that the CPD test may be a useful method for the characterization of track substructures.

A Case of Wegener`s Granulomatosis complicated by Diffuse Pulmonary Hemorrhage and Thrombotic Thrombocytopenic purpura

Hong Euy Lim,Sang Kyung Jo,Sang Wook Kim,Hyun Kyung Groi,In Beom Sth,Soo Yong Yoon,Jeong Seok Moon,Nam Hee Won,Young Joo Kwon,Heui Hung Pyo 대한신장학회 1997 춘계학술대회 초록집 Vol.1997 No.-