PACRIM-Ⅱ AIRSAR/MASTER Experiment over Korean Peninsula(An Overview)

Moon, WooIl M.,Korean PACRIM-Ⅱ Team including graduate sturdents 대한원격탐사학회 2000 International Symposium on Remote Sensing Vol.16 No.1

The advantages of the Synthetic Aperture Radar (SAR) has been well known among remote sensing data users since the launching of SEASAT in 1978. However, one of the limiting factors has been the limited spectral resolution until today with only single frequency and single polarization data available from all space-borne SAR systems. The AIRSAR system, developed by NASA(JPL) in late 1980s and became fully operation in 1990, has been a unique and valuable tool for the investigators interested in multiple frequency fully polarimetric SAR experiments. The PACRIM-I experiment in selected Pacific Rim countries in 1996 was a great success and the current PACRIM-II is the successor of PACRIM-I. In view of the new space-borne SAR systems: ALOS (Japan), ENVISAT (ESA) and RADARSAT-II (Canadian Space Agency), all planned for launching in 2002 and 2003 time frame, are all polarimetric SAR systems, and it is not only timely but also essential for any remote sensing corrununity to develop polarimetric SAR application capabilities. The Korean participants in PACRIM-lI includes both AIRSAR research teams and MASTER hyperspectral research team. The main objectives of the Korean participation in PACRIM-II include establishment of scientific and engineering knowledge base for the Polarimetric SAR technology, training of qualified graduate students, and developments of new polarimetric SAR applications. Science and engineering disciplines participating in the Korean PACRIM-II experiment include agriculture, archeology, land use, forestry, geography, geology, geohydrology, coastal science, oceanography, environmental applications, natural disaster monitoring and disaster management.

Early Epidemiological and Clinical Characteristics of 28 Cases of Coronavirus Disease in South Korea

COVID-19 National Emergency Response Center,Epidemiology and Case Management Team,Korea Centers for Disease Control and Prevention 질병관리본부 2020 Osong Public Health and Research Persptectives Vol.11 No.1

Objectives The first confirmed case of coronavirus disease 2019 (COVID-19) in South Korea was reported in January 2020, with 28 confirmed cases reported as of February 14th, 2020. The epidemiological and clinical characteristics of all 28 cases were analyzed in response to this disease. Methods The epidemiological characteristics and early clinical features of the 28 patients from Korea with confirmed COVID-19 were analyzed using COVID-19 reporting and surveillance data and the epidemiological investigation reports prepared by the rapid response team. Results There were 16 patients that entered Korea from foreign countries: Wuhan, China (11 patients), Zhuhai, China, (1 patient), Singapore (2 patients), Japan (1 patient), and Thailand (1 patient). The early symptoms were fever, sore throat, cough or sputum production, chills, and muscle ache. Three patients were asymptomatic, however, 18 developed pneumonia. Of the 28 cases, 16 were index cases imported from abroad, with 10 cases of secondary infection originating in Korea, and the route of transmission still under investigation for 2 patients. The 10 patients with secondary infection were infected from contact with family members or acquaintances of primary patients, and the suspected sites of transmission were mostly at home. Conclusion COVID-19 in Korea was spread by 16 infected individuals traveling from other countries, leading to second-generation cases. The initial symptoms were mostly minor, but the disease was infectious at this stage, resulting from close contact, particularly at home. Establishing an early detection strategy for COVID-19 is crucial for managing the transmission of the disease.

COSMIC STAR FORMATION HISTORY AND AGN EVOLUTION NEAR AND FAR: AKARI REVEALS BOTH

Goto, Tomotsugu,AKARI NEP team, AKARI NEP team,AKARI all sky survey team, AKARI all sky survey team The Korean Astronomical Society 2012 天文學論叢 Vol.27 No.4

Understanding infrared (IR) luminosity is fundamental to understanding the cosmic star formation history and AGN evolution, since their most intense stages are often obscured by dust. Japanese infrared satellite, AKARI, provided unique data sets to probe this both at low and high redshifts. The AKARI performed an all sky survey in 6 IR bands (9, 18, 65, 90, 140, and $160{\mu}m$) with 3-10 times better sensitivity than IRAS, covering the crucial far-IR wavelengths across the peak of the dust emission. Combined with a better spatial resolution, AKARI can measure the total infrared luminosity ($L_{TIR}$) of individual galaxies much more precisely, and thus, the total infrared luminosity density of the local Universe. In the AKARI NEP deep field, we construct restframe $8{\mu}m$, $12{\mu}m$, and total infrared (TIR) luminosity functions (LFs) at 0.15 < z < 2.2 using 4,128 infrared sources. A continuous filter coverage in the mid-IR wavelength (2.4, 3.2, 4.1, 7, 9, 11, 15, 18, and $24{\mu}m$) by the AKARI satellite allows us to estimate restframe $8{\mu}m$ and $12{\mu}m$ luminosities without using a large extrapolation based on a SED fit, which was the largest uncertainty in previous work. By combining these two results, we reveal dust-hidden cosmic star formation history and AGN evolution from z = 0 to z = 2.2, all probed by the AKARI satellite.

THE 3.3 ㎛ PAH FEATURE AS A SFR INDICATOR: PROBING THE INTERPLAY BETWEEN SF AND AGN ACTIVITIES

Kim, Ji Hoon,Im, M.,Kim, D.,Woo, J.H.,Park, D.,Imanishi, M.,AMUSES Team, AMUSES Team,LQSONG Team, LQSONG Team The Korean Astronomical Society 2012 天文學論叢 Vol.27 No.4

We utilize AKARI's slitless spectroscopic capability to detect the $3.3{\mu}m$ polycyclic aromatic hydrocarbons (PAHs) emission and measure star formation (SF) activity for various AKARI programs. First, we obtain $2{\sim}5{\mu}m$ spectra of 20 flux-limited galaxies with mixed SED classes in order to calibrate the $3.3{\mu}m$ PAH luminosity ($L_{PAH3.3}$) as a star formation rate (SFR) indicator. We find that $L_{PAH3.3}$ correlates with $L_{IR}$ as well as with the $6.2{\mu}m$ PAH luminosity ($L_{PAH6.2}$). The correlations does not depend on SED classes. We find that ULIRGs deviate from the correlation between PAH luminosities and $L_{IR}$, while they do not for the correlation between PAH luminosities. We suggest possible effects to cause this deviation. On the other hand, how AGN activity is linked to SB activity is one of the most intriguing questions. While it is suggested that AGN luminosity of quasars correlates with starburst (SB) luminosity, it is still unclear how AGN activity is connected to SF activity based on host galaxy properties. We are measuring SFRs for the LQSONG sample consisting of reverberation mapped AGNs and PG-QSOs. This is an extension of the ASCSG program by which we investigated the connection between SB and AGN activities for Seyferts type 1s at z ~ 0.36. While we found no strong correlation between $L_{PAH3.3}$ and AGN luminosity for these Seyferts 1s, $L_{PAH3.3}$ measured from the central part of galaxies correlates with AGN luminosity, implying that SB and AGN activities are directly connected in the nuclear region.

Collaborative Intervention of Middle East Respiratory Syndrome: Rapid Response Team

이재갑,Rapid Response Team,김우주 대한감염학회 2016 Infection and Chemotherapy Vol.48 No.2

On May 20th 2015, a 68 year old man was the first to be diagnosed with Middle East Respiratory Syndrome-Corona Virus (MERS-CoV) in Korea. He travelled to Bahrain, Saudi Arabia, and Qatar for 16 days. On May 4th 2015, the patient entered Korea, with febrile sense and respiratory symptoms that appeared on May 11th. The MERS-CoV Outbreak became worse and several patients had to be admitted throughout various hospitals starting at the beginning of June. This situation led to a nationwide chaos. The Rapid Response Team (RRT) was organized after the Korean government’s calling for specialists that were composed of 15 Infectious disease Doctors and 2 Infection Control professionals on the 8th of June 2015. The main purpose of the RRT were: 1) consultation to the Government controlling MERS-CoV outbreak. 2) Visit hospitals that were exposed to MERS-CoV infected patients, and to provide advice regarding infection control strategy for rehabilitating of the exposed hospitals. Since June 8th, the RRT visited more than 10 hospitals and an effective consultation was carried out. Most of the hospitals were recovering from the MERS outbreak since early July. Cooperation between the government and private sector experts was very effective. The efforts of government and private sector experts overcame the initial chaos situation. It could prevent further deterioration of the MERS outbreak.

산업재해 위기 관리 및 사전예방을 위한 기업용 - SAFETY SOLUTION

TEAM "FIT" 한국경영정보학회 2014 한국경영정보학회 학술대회논문집 Vol.2014 No.1

Rural Re - Electrification in the DPRK

Team, Nautilus,Greacen, Chris 경남대학교 극동문제연구소 2002 ASIAN PERSPECTIVE Vol.26 No.1

BE AWARE "SAFETY TRUCK" ALWAYS!

TEAM SPERO 한국경영정보학회 2014 한국경영정보학회 학술대회논문집 Vol.2014 No.1

Neutron emission in neutral beam heated KSTAR plasmas and its application to neutron radiography

KSTAR team,Kwak, J.G.,Kim, H.S.,Cheon, M.S.,Oh, S.T.,Lee, Y.S.,Terzolo, L. North-Holland ; Elsevier Science Ltd 2016 Fusion engineering and design Vol.109 No.1

The main mission of Korea Superconducting Tokamak Advanced Research (KSTAR) program is exploring the physics and technologies of high performance steady state Tokamak operation that are essential for ITER and fusion reactor. Since the successful first operation in 2008, the plasma performance is enhanced and duration of H-mode is extended to around 50s which corresponds to a few times of current diffusion time and surpassing the current conventional Tokamak operation. In addition to long-pulse operation, the operational boundary of the H-mode discharge is further extended over MHD no-wall limit(β<SUB>N</SUB>~4) transiently and higher stored energy region is obtained by increased total heating power (~6MW) and plasma current (I<SUB>p</SUB> up to 1MA for ~10s). Heating system consists of various mixtures (NB, ECH, LHCD, ICRF) but the major horse heating resource is the neutral beam(NB) of 100keV with 4.5MW and most of experiments are conducted with NB. So there is a lot of production of fast neutrons coming from via D(d,n)<SUP>3</SUP>He reaction and it is found that most of neutrons are coming from deuterium beam plasma interaction. Nominal neutron yield and the area of beam port is about 10<SUP>13</SUP>-10<SUP>14</SUP>/s and 1m<SUP>2</SUP> at the closest access position of the sample respectively and neutron emission could be modulated for application to the neutron radiography by varying NB power. This work reports on the results of quantitative analysis of neutron emission measurements and results are discussed in terms of beam-plasma interaction and plasma confinement. It also includes the feasibility study of neutron radiography using KSTAR.

지각된 부모의 자율부여가 청소년의 자기결정성 동기에 미치는 영향

김태명(Team Yeong Kim),이은주(Eun Ju Lee) 한국교육심리학회 2014 敎育心理硏究 Vol.28 No.3

부모가 부여해주는 자율성이 청소년의 자기결정성 동기에 미치는 영향에 있어서 학업성취 수준에 따른 상.하 집단간 차이가 있는지 확인하기 위하여 자기결정성이론 중에서 기본심리욕구이론과 유기적 통합이론의 하위 요인 모두를 포함하는 완전모형을 구성하여, 남녀 중학생 419명을 대상으로 다집단분석을 실시하였다. 학업성취도에 따른 상.하 두 집단 모두 부모의 자율부여로 인하여 자율성, 유능성, 관계성의 기본심리욕구가 모두 긍정적으로 충족되고 있다고 지각하고 있으며, 기본심리욕구별 매개효과와 학업성취 수준에 따른 조절효과가 있는 것으로 나타났다. 기본심리욕구 중에서 학업동기에 가장 큰 영향력을 가진 변수는 유능성인 반면에, 자율성과 관계성은 학업성취 수준에 따라 학업동기에 미치는 경로가 다른 것으로 확인되었다. 두 집단간의 차이가 가장 크게 나타난 부분은 자율성의 매개효과였는데, 지각된 부모 자율부여가 학업성취 상집단에서는 자율성을 매개로 하여 무동기, 외적조절, 내사조절 등 통제적 조절동기와 부적관계를 형성하는 반면에, 하집단에서는 무동기를 제외한 모든 유형의 학습동기 조절유형과 부적관계를 형성하는 것으로 나타났다. 본 연구는 부모의 자율부여가 청소년의 자기결정성 동기에 미치는 영향을 완전모형으로 구성하여 연구하였다는 점, 학업성취 수준에 따라 차이가 나는 경로를 구체적으로 확인하였다는 점, 그리고 우리나라의 부모-자녀 관계에서 부모의 자율부여가 학생의 특성에 따라 자기결정성 동기에 부정적일 수 있음을 보여주었다는 점에서 의의를 찾을 수 있다. Self-determination theory assumes that autonomy support satisfies basic psychological needs, and they in turn affect human motivation. However, few researches have been investigated the moderating effects of academic achievement level on the relationship between autonomy support, basic psychological needs, and self-determinative motivation. To address this limitation, a multigroup analysis was performed based on the full-model of three basic psychological needs and five self-regulative motivation with a sample of 419 middle school students. The results demonstrated that the parental autonomy granting was positively associated with the satisfaction of three basic needs. The competence was the only positive mediator between parental autonomy granting and self-regulative motivation regardless of the academic achievement level. The biggest group difference was found in the mediating effects of autonomy, which was negatively associated with amotivation, external regulation and introjected regulation in the higher achievement group, whereas it was negatively associated with all types of motivational regulations except for amotivation in the lower achievement group. The results imply that parents need to offer their adolescent children with more chances of internalization and self-regulation through continuous conversations and that it is not ‘autonomy’, but ‘competence’ that has the strongest positive relationship with academic motivation.