• 제목/요약/키워드: Jul

검색결과 339건 처리시간 0.026초

한국 제주도에서 채집된 쥐치과(Monacanthidae) 어류 1미기록종, Cantherhines multilineatus (Tanaka, 1918) (New Record of Cantherhines multilineatus (Tanaka, 1918) (Pisces: Monacanthidae) from Jeju Island, Korea)

  • 명세훈;김진구;권혁준
    • 한국수산과학회지
    • /
    • 제51권2호
    • /
    • pp.199-202
    • /
    • 2018
  • A single specimen (174.5 mm in standard length) of Cantherhines multilineatus, belonging to the family Monacanthidae in the order Tetraodontiformes, was first collected from northern Jeju Island, Korea, in August 2016, using a gill net. This species is distinguished from the congeneric species C. dumerilii by the lack of spines on the sides of its caudal peduncle (vs. two pairs of spines in C. dumerilii) and from C. pardalis in having 9-10 narrow dark longitudinal bands on the cheek and side (vs. dark brown with a network of close-set polygonal spots in C. pardalis). The species also very similar to Stephanolepis cirrhifer, but its first dorsal fin spine is more elongated than the rays of its second dorsal fin rays. We have adopted the Korean common name "Jul-mu-nui-jwi-chi" for C. multilineatus, in accordance with the proposal of Yamada et al. (2009).

카페시타빈과 통합의학 프로그램 치료 병용을 통해 호전된 진행성 유방암 1례 (Case of Remission of Progressive Breast Cancer Treated by Capecitabine with Integrative Medicine Therapy)

  • 진용재;신광순;하지용
    • 대한암한의학회지
    • /
    • 제19권1호
    • /
    • pp.43-51
    • /
    • 2014
  • This report is aimed to investigate the effect of Integrative Medicine Therapy (IMT) in treating breast cancer metastasized to several portion. A 55-year-old woman who was diagnosed breast cancer and treated by breast conservation surgery (BCS) IN 2002. (pT2M0N0), adjuvant chemotherapy and radiotherapy till Jan. in 2013. But cancer had metastasized to sacrum (2009), liver (2012) and ribs (2013). Finally cause of several side effects of Xeloda(neuralgia and vommiting), she gave up to be treated by Xeloda and started to receive IMT including Abnoba Viscum, Vitamin C therapy Xeloda again, Korean herbal medicine and pharmacopuncture from Jul. in 2013. The effect was evaluated with Positron Emission Tomography and Computed Tomography (PET-CT) and Abdomen Computed Tomography (CT). The metastatic tumor in liver was disappeared and cancers to ribs, their size decreased after 12 months and pain of sacrum maintained VAS 2 continually. These results suggest that IMT is a therapeutic method to treat metastatic tumor originated from breast cancer.

액체의 물성치와 노즐의 형상 변화에 따른 압력스월 노즐의 분무 특성 (Characteristics of Spray from Pressure-Swirl Nozzle with Different Liquid Properties and Nozzle Geometries)

  • 최윤철;정지원;김덕줄
    • 대한기계학회논문집B
    • /
    • 제25권12호
    • /
    • pp.1813-1820
    • /
    • 2001
  • The purpose of this study was to investigate the significant characteristics in atomization process of industrial etching spray fur the design or Precise pressure-swirl nozzles. The experiment was carried out with different viscosities and densities of the liquid. The macro characteristics of liquid spray, such as the spray angle and breakup process were captured by PMAS and the micro characteristics of liquid spray. such as droplet size and velocity measurements were obtained by PDA. The droplet axial and radial velocity and SMD were measured along axial and radial direction. The RMS of two velocities was measured along radial direction. It was found that the fluid with higher kinematic viscosity resulted in the larger SMD and the lower mean droplet velocity. And we could divide breakup processes into three regions that is atomization, non-dilution and dilution one in spray of pressure-swirl nozzle. The radial as well as axial velocity of droplet played an important role in the atomization process of higher kinematic viscosity fluid.

Experimental Evaluation of Position Sensorless Control on Hybrid Electric Vehicle Applications

  • Choi, Chan-Hee;Kim, Bum-Sik;Lee, Young-Kook;Jung, Jin-Hwan;Seok, Jul-Ki
    • Journal of Power Electronics
    • /
    • 제11권4호
    • /
    • pp.464-470
    • /
    • 2011
  • In this paper, the feasibility of applying a position sensorless control technique to hybrid electric vehicles (HEVs) is practically evaluated. The proposed position estimator has a straightforward structure with properties that combines the model and the saliency tracking-based rotor position estimation for interior permanent magnet synchronous motors (IPMSMs). The proposed method can be used in the event of sensor loss or sensor recovery to sustain continuity of operations. The developed system takes into account the estimated position transition between two distinct sensorless methods. The transition is enhanced by introducing a synchronized transition algorithm based on a single tracking observer. Extensive experimental results are presented to verify the principles and show a reliable estimation performance over the entire speed range including standstill under 150% load conditions.

토양 내 서식하는 공벌레의 중금속 축적에 따른 생태적 연구 (Ecological study on effects of heavy metal accumulation on pillbugs)

  • 이상돈
    • 환경영향평가
    • /
    • 제20권5호
    • /
    • pp.675-684
    • /
    • 2011
  • In nature, the overall effect of heavy metals on the biota can be influenced by a number of environmental factors like soil characteristics and air pollution by elevated $CO_2$. Pillbugs (Isopoda, Armadillium vulgare) take up heavy metals with their food and store them mainly in the vesicles of hepatopancreas. They accumulate certain metals, occur in relatively large numbers, are easily collected and identified, and provide sufficient material for analysis. The species are decomposing litter well and soil impurities into N and P. Therefore, it has been suggested that total body concentration of metals in pillbugs could be positively correlated to the levels of environmental exposure and that pillbugs could be used as biological indicators of metal pollution and global change by $CO_2$. The aim of the study is to determine effects of heavy metal concentrations in soil and elevated $CO_2$ on pillbugs' body accumulation of heavy metal and growth rate. In this study, the concentrations of six metals (Fe, Mg Cu, Zn, Pb, Cd) have been determined. Pillbugs (N=287) were collected at five sites during Jul-Aug, 2006. Cu and Zn concentrations in the body were much higher than in the soils(1.39-41.70 times). This indicated that bioaccumulation of some of the heavy metals were increasing in the food-chain. The high bioconcentration of lead in Sangam may be partly associated with reclaimed land uses.

소아 선천성 개심수술후의 폐동맥 고혈압 발작증 (Pulmonary Hypertensive Crises After Surgery for Congenital Heart Defects in Children)

  • 서필원
    • Journal of Chest Surgery
    • /
    • 제22권6호
    • /
    • pp.944-950
    • /
    • 1989
  • Children with congenital cardiac defects associated with high pulmonary artery pressure may die despite accurate surgery. Postoperative mortality and morbidity have been attributed to acute rises in pulmonary artery pressure and resistance. Acute pulmonary hypertensive crisis is defined as a paroxysmal event in which pulmonary arterial systolic pressure rises to or above systemic levels followed by a rapid fall in systemic pressure and a minor pulmonary hypertensive event is defined as an acute rise in pulmonary arterial pressure to more than 80 % of systemic levels but without a fall in systemic pressure. From Oct. 1988 to Jul. 1989, we experienced 23 patients who showed many pulmonary hypertensive crises after operation in the Department of Thoracic and Cardiovascular Surgery, Seoul National University Children\ulcorner Hospital. Their preoperative PAP/SAPs were 53 to 123 %[mean 93.3%] and diagnoses were VSD[7], TAPVR[5], TGA[4], AVSD[3], MS[1], DORV[1], Truncus arteriosus[1], and AP window[l]. There were 9 deaths among 23 patients and they showed many pulmonary hypertensive crisis episodes during postoperative intensive care, which was managed by sedation, hyperventilation, oxygen, and acidosis correction and which decreased after using tolazoline. In view of our experience, we recommend that pulmonary artery pressure should be monitored in congenital heart defected patient with preoperative pulmonary hypertension to confirm and to manage the pulmonary hypertensive crisis accurately and using tolazoline is helpful in the treatment of pulmonary hypertensive crisis.

  • PDF

분무각이 다른 GDI인젝터에 대한 증발특성 (Vaporizing Characteristics of Spray from Two Different GDI Injectors)

  • 최동석;김덕줄
    • 대한기계학회논문집B
    • /
    • 제25권5호
    • /
    • pp.688-696
    • /
    • 2001
  • Vaporizing characteristics of two GDI injectors with different spray angles were investigated using exciplex fluorescence method. Injector I has narrower spray angle, while injector II has wider one. The exciplex system of fluorobenzene and DEMA in a non-fluorescing base fuel of hexane was employed. In quantifying concentration of fuel vapor, quenching of concentration and temperature was corrected. Droplet size and velocity were also measured by PDPA under non-vaporizing condition. From obtaining the images of liquid and vapor phases, vaporizing GDI sprays could be divided as two regions: cone and mixing regions. For injector I, vortex region was not developed. High concentration of fuel vapor due to vaporization of many fine droplets was distributed near the spray axis. For injector II, droplets with the diameter of about 10 $\mu$m were distributed in the vortex region. The vortex region had high concentration of fuel vapor due to vaporization of these droplets. Particularly, higher and lower concentrations of fuel vapor were balanced at 2ms after the start of injection for injector II.

한국산 농어목 후악치과 어류 1 미기록종, Opistognathus hongkongiensis (First Record of a Jawfish, Opistognathus hongkongiensis (Opistognathidae: Perciformes) from Korea)

  • 박정호;김진구;최정화;최영민
    • 한국어류학회지
    • /
    • 제20권1호
    • /
    • pp.74-77
    • /
    • 2008
  • 농어목 후악치과에 속하는 Opistognathus hongkongiensis 유어 3개체(체장 38.8~51.5 mm)가 제주도 주변해역에서 채집되었다. O. hongkongiensis는 입이 크고 체측에 흑갈색 가로띠가 있으며, 등지느러미가 노랗고 검은 반점이 없는 것이 특징이다. 본 종은 국내에서 처음으로 보고되는 종으로서, 신한국명을 "줄후악치"로 제안한다.

한국산 거북복과 어류 1미기록종 Lactoria fornasini (First Record of the Thornback Cowfish Lactoria fornasini (Ostraciidae, Tetraodontiformes) from Korea)

  • 김맹진;김병엽;송춘복
    • 한국어류학회지
    • /
    • 제20권4호
    • /
    • pp.324-326
    • /
    • 2008
  • 거북복과(Ostraciidae)에 속하는 Lactoria fornasini 1개체(표준체장 103.7 mm)가 제주도 위미에 설치된 정치망에 처음으로 채집되었다. 이 종은 눈앞에 1쌍의 가시가 돌출되었고, 꼬리지느러미 아래쪽의 배쪽 융기선으로부터 1쌍의 가시가 후방을 향해 돋아 있으며 등의 융기부 중앙에는 날카로운 가시를 갖고 있다. 그리고 몸에는 다양한 파란색 줄무늬를 가지고 있다. 이 미기록종의 신한국명을 "줄무늬뿔복"으로 명명하였다.

영향력분포도를 이용한 강화학습의 학습속도개선 (An improvement of the learning speed through Influence Map on Reinforcement Learning)

  • 신용우
    • 한국게임학회 논문지
    • /
    • 제17권4호
    • /
    • pp.109-116
    • /
    • 2017
  • 보드게임은 많은 수의 말들과 상태공간을 갖고 있다. 그러므로 게임은 학습을 오래하여야 한다. 그러나 강화학습은 학습초기에 학습속도가 느려지는 단점이 있다. 그러므로 학습 도중에 동일한 최선 값이 있을 때, 영향력분포도를 고려한 문제 영역 지식을 활용한 휴리스틱을 사용해 학습의 속도 향상을 시도하였다. 기존 구현된 말과 개선 구현된 말을 비교하기 위해 보드게임을 제작하였다. 그래서 일방공격형 말과 승부를 하게 하였다. 실험 결과 개선 구현된 말의 성능이 학습속도 측면에서 향상됨을 알 수 있었다.