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이돈출(D.C. Lee),멜쵸우 엠 밀라(Melchor M. Millar),남정길(J.C. Nam) 한국마린엔지니어링학회 2009 한국마린엔지니어링학회 학술대회 논문집 Vol.2009 No.-
Much work has already been done to control and regulate the proliferation of worldwide problems caused by the issues on climate change, particularly the greenhouse gas (GHG) emissions. Carbon dioxide (CO2), having the highest form of concentration among GHGs composed around 1.0 billion tons of emission, and that almost comprise 95% of the total emissions in the shipping industries. As for the shipping industry's contribution on the said emissions, Korean trade shares mainly rely on the sea transportation. Korean ship tonnages that was brought about by shipbuilders all over the country, continues to grow annually due to the prevailing demands on goods or material supplies and depicting only a small part of the global maritime activity. Nowadays, new build ships coming from the Korean Shipbuilders being optimized by hull, structure and appendages design, the operational capability of its propulsion and auxiliary machineries in its maximum capacity to achieve the highest possible efficiencies for energy and onboard power use to mitigate CO2 emissions are continually being done through the help of research and development. In this paper, the energy efficiency design index and power capacity of Korean new build ships have been analyzed with response to data collected by ship types, and its respective fuel consumption in relation to CO2 emission results. In response to climate change convention outcome proposals, still the best way for the new build ships to become energy efficient is by lowering its operational speed thru adopting the state of the art diesel propulsion engines, optimizing the hull and appendages design, and to continue patronizing the best sailing practice to lower the transportation cost on the different sea trade routes.
( Luis Miguel Ruiz ),( Jose Luis Graupera ),( Melchor Gutierrez ),( Motohide Miyahara ) 한국스포츠정책과학원(구 한국스포츠개발원) 2003 International Journal of Applied Sports Sciences Vol.15 No.1
The Movement Assessment Battery for Children (Movement ABC; Henderson and Sudgen, 1992) is one of the most popular instruments in the assessment of children with movement coordination problems. It is generally assumed that the published norms for the test are valid for use with European children and one of the aims of this study was to compare the results of Miyaharas study with Japanese children (53 boys, 49 girls) and the American standardization (237 boys, 284 girls) with the Spanish sample (202 boys and 183 girls). The cross-cultural comparisons revealed that there are many differences in performance among children of these samples. These differences were distributed among tasks and countries in the two age bands. Gender differences in all samples shown that girls outperform boys in manual and balance tasks, and boys got better scores in ball skills. This data and its analysis so far suggest different consequences: 1) The question of cultural differences in motor skill learning and performance; 2) The problem of gender differences in motor coordination; 3) The norms of the test. As a final consequence it will be necessary to study this test in a larger and more broadly based sample of Spanish boys and girls for it to be accepted as a useful test in the assessment of motor coordination in Spain.
Gastric Cancer Presenting as a Krukenberg Tumor at 22 Weeks’ Gestation
Paul Vincent Co,Ashutosh Gupta,Bashar M Attar,Melchor Demetria 대한위암학회 2014 Journal of gastric cancer Vol.14 No.4
Gastric cancer is rare during pregnancy, and often advanced upon presentation. A Krukenberg tumor presents a diagnostic and therapeutic challenge in the pregnant patient. We present a case of a 38-year-old woman at 22 weeks’ gestation who presented with worsening epigastric pain, and was found to have a left pelvic mass on ultrasound, which was confirmed by magnetic resonance imaging. She went into active labor and delivered a viable infant via vaginal delivery. An exploratory laparotomy revealed a large mass originating from her left ovary and diffuse thickening of the lesser curvature of the stomach. Frozen section investigation revealed the presence of signet cell adenocarcinoma. Subsequent upper endoscopy showed linitis plastica, while biopsy confirmed the presence of adenocarcinoma. In conclusion, the occurrence of gastric cancer in pregnancy is rare despite extremely common symptoms. The management poses a challenge because of the need for early treatment, and the continuation of the pregnancy.
Gastric Cancer Presenting as a Krukenberg Tumor at 22 Weeks' Gestation
Co, Paul Vincent,Gupta, Ashutosh,Attar, Bashar M.,Demetria, Melchor The Korean Gastric Cancer Association 2014 Journal of gastric cancer Vol.14 No.4
Gastric cancer is rare during pregnancy, and often advanced upon presentation. A Krukenberg tumor presents a diagnostic and therapeutic challenge in the pregnant patient. We present a case of a 38-year-old woman at 22 weeks' gestation who presented with worsening epigastric pain, and was found to have a left pelvic mass on ultrasound, which was confirmed by magnetic resonance imaging. She went into active labor and delivered a viable infant via vaginal delivery. An exploratory laparotomy revealed a large mass originating from her left ovary and diffuse thickening of the lesser curvature of the stomach. Frozen section investigation revealed the presence of signet cell adenocarcinoma. Subsequent upper endoscopy showed linitis plastica, while biopsy confirmed the presence of adenocarcinoma. In conclusion, the occurrence of gastric cancer in pregnancy is rare despite extremely common symptoms. The management poses a challenge because of the need for early treatment, and the continuation of the pregnancy.
지진 관측 기록을 이용한 필리핀 마닐라의 현장 증폭 특성 및 S파 속도구조 추정
( Hiroaki Yamanaka ),( Kaoru Ohtawara1 ),( Rhommel Grutas ),( Robert B. Tiglao ),( Melchor Lasala ),( Inshmael C. Narag ),( Bartlome C. Bautista ) 한국지구물리·물리탐사학회 2011 지구물리와 물리탐사 Vol.14 No.1
본 연구에서는, 필리핀의 마닐라에서 관측된 지진 기록을 통해 얇고 깊은 토양층의 S파 속도 구조 와 경험적 현장 증폭 특성을 평가하였다. 지진 기록에 빛띠 역산법(Spectral inversion technique)을 적용하여 진원, 경로 및 국지적 현장 증폭 효과들을 평가하였다. 사용한 지진 자료는 36회의 중간급 지진들의 기록을 얻었으며, 그 중에서 마닐라의 지진 관측 망에서 강한 움직임을 보인 10곳의 관측점 자료를 이용하였다. 전파경로의 추정 Q값은 54.6f 1.1으로 모사된다. 대부분의 진원의 빛띠(스펙트럼)는 오메가-스퀘어(omega-square) 모형으로 근사 될 수 있다. 현장 증폭 특성은 지표 지질조건에 따라 특유의 특징을 보여준다. 중앙 고지대의 증폭특성은 우세 주파수를 갖지 않는데 비해, 해안 저지대 와 마리키나(Marikina) 계곡에서의 증폭특성은 1~5Hz의 우세 주파수를 갖는다. 우리는 현장 증폭 특성을 S파 속도로 변환한 후에, 증폭 특성과 상부 30m의 평균 S파 속도 구조와의 관계를 검토하였다. 낮은 주파수대의 증폭 특성은 평균 S파 속도와 좋은 상관성을 보인다. 반면, 높은 주파수대의 증폭특성은 상부 30m내의 평균 S파 속도로 충분히 설명되지 않는다. 이것은 30m보다 낮은 심도의 평균 S파 속도와 더 많이 관련되어 있다. In this study, empirical site amplifications and S-wave velocity profiles for shallow and deep soils are estimated using earthquake ground motion records in metropolitan Manila, the Philippines. We first apply a spectral inversion technique to the earthquake records to estimate effects of source, path, and local site amplification. The earthquake data used were obtained during 36 moderate earthquakes at 10 strong-motion stations of an earthquake observation network in Manila. The estimated Q value of the propagation path is modelled as 54.6f(1.1). Most of the source spectra can be approximated with the omega-square model. The site amplifications show characteristic features according to surface geological conditions. The amplifications at the sites in the coastal lowland and Marikina Valley shows predominant peaks at frequencies from 1 to 5 Hz, while those in the central plateau are characterised by no dominant peaks. These site amplifications are inverted to subsurface S-wave velocity. We, next, discuss the relationship between the amplifications and average S-wave velocity in the top 30 m of the S-wave velocity profiles. The amplifications at low frequencies are well correlated with the averaged S-wave velocity. However, high-frequency amplifications cannot be sufficiently explained by the averaged S-wave velocity in the top 30 m. They are correlated more with the average of S-wave velocity over depths less than 30 m.
Yamanaka, Hiroaki,Ohtawara, Kaoru,Grutas, Rhommel,Tiglao, Robert B.,Lasala, Melchor,Narag, Ishmael C.,Bautista, Bartlome C. Korean Society of Earth and Exploration Geophysici 2011 지구물리와 물리탐사 Vol.14 No.1
In this study, empirical site amplifications and S-wave velocity profiles for shallow and deep soils are estimated using earthquake ground motion records in metropolitan Manila, the Philippines. We first apply a spectral inversion technique to the earthquake records to estimate effects of source, path, and local site amplification. The earthquake data used were obtained during 36 moderate earthquakes at 10 strong-motion stations of an earthquake observation network in Manila. The estimated Q value of the propagation path is modelled as $54.6f^{1.1}$. Most of the source spectra can be approximated with the omega-square model. The site amplifications show characteristic features according to surface geological conditions. The amplifications at the sites in the coastal lowland and Marikina Valley shows predominant peaks at frequencies from 1 to 5 Hz, while those in the central plateau are characterised by no dominant peaks. These site amplifications are inverted to subsurface S-wave velocity. We, next, discuss the relationship between the amplifications and average S-wave velocity in the top 30m of the S-wave velocity profiles. The amplifications at low frequencies are well correlated with the averaged S-wave velocity. However, high-frequency amplifications cannot be sufficiently explained by the averaged S-wave velocity in the top 30 m. They are correlated more with the average of S-wave velocity over depths less than 30 m.