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| 1 | Vector Magnetograph Observations by the Solar Flare Telescope at Boao显示文摘We report that vector magnetograph (VMG) observations of the solar photosphere are being carride out by the Solar Flare Telescope (SOFT) at BOAO. The VMG uses a narrow band Lyot filter (FWHM=0 125A) for Stokes parameter (I, Q, U, V) observations to obtain longitudinal and transverse fields. We have obtained a filter convolved line profile of Fe I 6302 5 for VMG by changing the central wavelength of the Lyot filter, which is consistent with the Sacremento Peak spectral atlas data. Using the line profile, we have determined calibration coefficients of longitudinal and transverse fields by the line slope method. Then we have compared vector fields of AR8422 observed at BOAO with those at Mitaka. The comparison shows that longitudinal fields are very similar to each other, but transverse fields are a little different. Finally, we present Hα and magnetic observations of AR8419 during its flaring activity (M3 1/1B). | Y. D. Park, Y. J. Moon (Korea Astronomy Observatory, Whaamdong, Yooseong ku, Taejon, 305 348, Korea) H. S. Yun (Department of Astronomy, Seoul National University, Seoul 151 742, Korea) | 1999 | 天文研究与技术1999,,S1: | 12 |
| 2 | Interdecadal change in Western Pacific Subtropical High and climatic effects显示文摘Western North Pacific Subtropical High is a very important atmospheric circulation system influencing the summer climate over eastern China. Its interdecadal change is analyzed in this study. There is a significant decadal shift in about 1979/1980. Since 1980, the Western North Pacific Subtropical High has enlarged, intensified, and shifted southwestward. This change gives rise to an anti-cyclonic circulation anomaly over the region from the South China Sea to western Pacific and thus causes wet anomalies over the Yangtze River valley. During the summers of 1980-1999, the precipitation is 63.9 mm above normal, while during 1958-1979 it is 27.3 mm below normal. The difference is significant at the 99% confidence level as a t-test shown. The southwestward expanding of the Western North Pacific Subtropical High also leads to a significant warming in southern China, during 1980-1999 the summer mean temperature is 0.37篊 warmer than that of the period 1958-1979. The strong warming is primarily due to the clearer skies associated with the stronger downward air motion as the Western North Pacific Subtropical High expanding to the west and controlling southern China. It is also found that the relative percentage of tropical cyclones in the regions south of 20篘 is decreasing since the 1980s, but in the regions north of 20篘 that is increasing at the same time. The Western North Pacific Subtropical High responds significantly to sea surface temperature of the tropical eastern Pacific with a lag of one-two seasons and simultaneously to sea surface temperature of the tropical Indian Ocean. The changes in the sea surface temperatures are mainly responsible for the interdecadal variability of the Western North Pacific Subtropical High. | HE Xue-zhao1, GONG Dao-yi1,2 (1. Laboratory of Environmental Change and Natural Disaster Research, Institute of Resources Science, Beijing Normal University, Beijing 100875, China 2. School of Earth and Environmental Sciences, Seoul National University | 2002 | Journal of Geographical Sciences2002,12,2: | 8 |
| 3 | Anxiety and depression propensities in patients with acute toxic liver injury显示文摘AIM:To investigate anxiety and depression propensities in patients with toxic liver injury.METHODS:The subjects were divided into three groups:a healthy control group(Group 1,n=125),an acute non-toxic liver injury group(Group 2,n=124),and a group with acute toxic liver injury group caused by noncommercial herbal preparations(Group 3,n=126).These three groups were compared and evaluated through questionnaire surveys and using the Hospital Anxiety-Depression Scale(HADS),Beck Anxiety Inventory(BAI),Beck Depression Inventory(BDI),and the hypochondriasis scale.RESULTS:The HADS anxiety subscale was 4.9±2.7,5.0±3.0 and 5.6±3.4,in Groups 1,2,and 3,respectively.The HADS depression subscale in Group 3 showed the most significant score(5.2±3.2,6.4±3.4 and 7.2±3.4in Groups 1,2,and 3,respectively)(P<0.01 vs Group 1,P<0.05 vs Group 2).The BAI and BDI in Group 3showed the most significant score(7.0±6.3 and 6.9±6.9,9.5±8.6 and 8.8±7.3,10.7±7.2 and 11.6±8.5in Groups 1,2,and 3,respectively)(BAI:P<0.01 vs Group 1,P<0.05 vs Group 2)(BDI:P<0.01 vs Group1 and 2).Group 3 showed a significantly higher hypochondriasis score(8.2±6.0,11.6±7.5 and 13.1±6.5in Groups 1,2,and 3,respectively)(P<0.01 vs Group 1,P<0.05 vs Group 2).CONCLUSION:Psychological factors that present vulnerability to the temptation to use alternative medicines,such as herbs and plant preparations,are important for understanding toxic liver injury. | Jeong Ill Suh Jeong Kyu Sakong Kwan Lee Yong Kook Lee Jeong Bae Park Dong Joon Kim Yeon Seok SeoDepartment of Internal Medicine Korea University Anam Hospital Korea University College of Medicine Seoul 136-705 South Korea Jae Dong Lee Soon Young Ko Byung Seok Lee Seok Hyun Kim Byung Seok Kim Young Seok Kim Heon Ju Lee In Hee Kim Joo Hyun Sohn Tae Yeob Kim Byung Min Ahn | 2013 | World Journal of Gastroenterology2013,19,47: | 5 |
| 4 | 从热电厂粉煤灰中提取铝生产硫酸铝(英文)显示文摘目前从热电厂粉煤灰中提取有价金属的方法存在一定的局限性。研究用硫酸从热电厂粉煤灰中提取铝制备高纯硫酸铝(>99.0%)。以硫酸为萃取剂分别提取Talcher热电站和Vedanta铝业有限公司的粉煤灰中的铝制备硫酸铝。采用X射线衍射谱、傅里叶红外光谱和热重分析等手段对硫酸铝产品进行表征,用电感耦合等离子-光学发射光谱测量硫酸铝产品的纯度。结果表明,粉煤灰的浸出率取决于粉煤灰与硫酸的固液比以及粉煤灰的颗粒尺寸。物化分析结果表明,所得产品为Al_2(SO_4)_3·18H_2O,其铁含量较低,仅为0.08%(质量分数)。 | Seoul SANGITA Niva NAYAK Chitta Ranjan PA | 2017 | Transactions of Nonferrous Metals Society of China2017,27,9: | 4 |
| 5 | CO_2 exchange at air-sea interface in the Huanghai Sea显示文摘During the Huanghai Sea Circulation and Material Flux Expedition in Spring 1996, fco2 in surface water and atmosphere was measured. The fco2 in surface water varied in a range from 220 to 360 uatm1) while atmospheric concentration was nearly constant at 360μatm, showing that the Huanghai Sea surface waters were undersaturated with respect to atmospheric Co during the time of investigation. A model was developed in this study in order to estimate the Co flux at the air-sea interface. The model incorporates the time-series variations of the distributions in SST (sea surface temperature), salinity, mixed-layer depth, atmospheric fco2, gas-transfer velocity, and CZCS chlorophyll concentration in the Huanghai Sea and was calibrated with the observed fco2 data. The primary parameter affecting fco2 in surface water is the variation of SST through time. The annual fluxes of Co are estimated as 0. 033 Gt C from the sea into the atmosphere and 0. 044 Gt C from the air into sea. The Huanghai Sea, thus behaves as a CO2 sink absorbing 0. 011 Gi C of CO2 a year. which.corresponds to about 0. 5 % of global oceanic absorption capacity. | Dong-Chan Oh Mi-Kyung Park Kyung-Ryul Kim (1. Department of Oceanography, Seoul National University, Seoul 151-742, Korea) | 2000 | Acta Oceanologica Sinica2000,19,1: | 2 |
| 6 | 对电力系统稳定控制方法的比较研究显示文摘为了在有干扰或低频振荡时维持互联电力系统的稳定,本文介绍了一些电力系统稳定的新技术。一种是在经典的电力系统稳定器(PSS)中,利用特征矢量灵敏度,使振荡输出响应包络线下的面积为最小的方法来找出最佳参数;另一种是采用一种自适应控制方法即可移动相位的自调谐调节器(PSSTR),最后一种方法则是利用人工神经网络,此处神经网络的非线性映射能力是用修改过的BTT法来训练神经控制器的方式来开拓的。控制方法用于一个典型的非线性多机电力系统,对各种方法的仿真结果进行了比较,并指出了研究工作中的缺陷。 | Young-Moon park Kwang-HoLee Myeon-SongChoi Seung-Ho Hyun Rim-TaigLee(Department of Electrical Engnieering, Seoul National UniversitySeoul 151-742, Korea) | 1995 | 电网技术1995,19,9: | 2 |
| 7 | Instabilities in a Self-Gravitating Magnetized Gas Disk显示文摘A linear stability analysis has been performed onto a self-gravitating magnetized gas disk boundxed by external pressure. The resulting dispersion relation is fully explained by three kinds of instability: a Parker-type instability driven by self-gravity, usual Jeans gravitational instability and convection. In the direction parallel to the magnetic fields, the magnetic tension completely suppresses the convection. If the adiabatic index γ is less than a certain critical value, the perturbations trigger the Parker as well as the Jeans instability in the disk. Consequently, the growth rate curve has two maxima: one at small wavenumber due to a combination of the Parker and Jeans instabilities, and the other at somewhat larger wavenumber mostly due to the Parker instability. In the horizontal direction perpendicular to the fields, the convection makes the growth rate increase monotonically upto a limiting value as the perturbation wavenumber gets large. However, at small wavenumbers, the Jeans instability becomes effective and develops a peak in the growth rate curve. Depending on the system parameters, the maximum growth rate of the convection may or may not be higher than the peak due to the Jeans-Parker instability. Therefore, a cooperative action of the Jeans and Parker instabilities can have chances to over-ride the convection and may develop large scale structures of cylindrical shape in non-linear stage. In thick disks the cylinder is expected to align its axis perpendicular to the field, while in thin ones parallel to it. | S. M. Lee, S. S. Hong ( Department of Astronomy, Seoul National University, Seoul 151-742, KOREA ) | 1999 | 天文研究与技术1999,,S1: | 2 |
| 8 | THE STATE AND THE PERSPECTIVE OF THE DIRECT SEDIMENT REMOVAL METHODS FROM RESERVOIRS显示文摘Reservoir sedimentation is a world-wide problem of public concern. Presently available methods of direct sediment removal from reservoirs can be classified into four, i.e., flushing, dredging, dry-earth excavation and the combination of flushing and dredging. Flushing and dredging are extensively reviewed as the methods of large-scale direct removal for large quantities of sediment. The most economic choice of methods and equipment depends on the sedimentation characteristics of individual reservoir. World experience of flushing operation is reviewed. A systematic approach to dredging operation in reservoir is proposed and the relevant criteria are listed for reference. | Yong Nam YOON ( Professor, Dept. of Civil Engineering, College of Engineering, Korea University, Seoul, Republic of Korea) | 1992 | International Journal of Sediment Research1992,7,2: | 2 |
| 9 | 显示文摘 | Seoul C Song W J Kang G W | 2002 | Synt Met2002,130,: | 1 |
| 10 | Pharmacological mechanism responsible for the Atractylodes japonica -induced distal colonic contraction in rats显示文摘 | Keun Han Choi Seung Il Jeong Jun Ho Lee Byung Soon Hwang Sang Jun Kim Seoul Lee Bong Kyu Choi Kyu Yong Jung | 2010 | Phytomedicine2010,,5: | 1 |
| 11 | Effect of moisture level on the crystallinity of wheat starch aged at different temperature显示文摘 | JANG J K SEOUL Y R P | 1997 | Starch1997,49,7: | 1 |
| 12 | Cynandione A from Cynanchum wilfordii protects cultured cortical neurons from toxicity induced by H2O2,L-Glutamate and kainite显示文摘 | Lee MK Yeo H Kim J Markeionis GJ Oh TH Kim YC College of Pharmacy Seoul National University Korea | 2000 | J Neurosci Res 2000 Jan 152000,59,2: | 1 |
| 13 | Korea Two new antioxidant stilbene di- mers, Parthenostilbenins A and B from Parthe- noeissus trieuspidata 显示文摘 | Seoul S | 2005 | Planta Mediea2005,71,10: | 1 |
| 14 | Electrospinning of poly(vinylidene fluoride)/dimethylformamide solutiona with carbon nanotubes 显示文摘 | Seoul C Kim Y T Baek C K | 2003 | Journal of Polymer Science Part B: Polymer Physics2003,41,13: | 1 |
| 15 | Effects of Perceived Service Fairness on Emotions, and Behavioral Intentions in Restaurants 显示文摘 | Namkung Y Seoul K and Jang S C | 2010 | European Journal of Marketing2010,44,910: | 1 |
| 16 | Cause and consequence of landscape fragmentation and changing disturbance by socio-economic development in mountain landscape system of South Korea显示文摘Throughthestatisticsandtheanalysisoflandscapemap,changesoflandsuseregimeandlandscapestructureduring20yearswereinvestigatedin... | Sun Kee Hong Center for Education Research, Seoul National University, Seoul 151 742, Korea | 1999 | Journal of Environmental Sciences1999,11,2: | 1 |
| 17 | Percutaneous pedicle screw fixation as an augmenter of minimally invasive anterior lumbar interbody fusion:preliminary report显示文摘 | Won KC Sang HL Seoul | 2002 | Proceeding of the NASS 16th Annual Meeting/The Spine J2002,2,2: | 1 |
| 18 | SOME PERMUTING TRINOMIALS OVER FINITEFIELDS显示文摘Trinomial permutation polynomials of the form xr(ax2s + bxs + c) over Fq have been studied where 3|q-1 and s = (q-1)/3. We derive some necessary and sufficient conditions for these trinomials to be permutation polynomials, and construct some examples. Moreover, we discuss the relationship between permutation trinomials of the given type over a tower of finite fields. | June Bok Lee(Dept. of Math., Yonsei University, Seoul, 120-749,Korea)Young Ho Park (Dept. of Math., Kangwon National University, Chuncheon, 200-701,Korea) | 1997 | Acta Mathematica Scientia1997,17,3: | 1 |
| 19 | Randomized Clinical Trials on Eastern-Western Integrative Medicine for Health Care in Korean Literature:A Systematic Review显示文摘目的将独自与东方药(他们) 或西方的药(WM ) 相比为护理总结并且极其评估证据为并且对东方西方的综合的药(EWIM ) 的有效性。方法系统的搜索在 fifi ve 朝鲜语上被进行医药数据库。用手的搜索也通过九本主要朝鲜医药杂志被进行。如果 EWIM 与他们或 WM 相比为条件的任何类型被测试,未来的使随机化的临床的审判(RCT ) 被包括。在那里的结果是 141 可能相关的研究是 identififi 编辑,并且七 RCT 被包括。偏爱的风险在大多数研究高。EWIM 方法在有在四研究的疼痛条件的病人与他们或 WM 相比。这些研究与他们相比肩膀疼痛和长期的头疼地在病人在疼痛减小上显示出 EWIM 的有利效果,当另外的 RCT 没能那么在交通损害病人做时。二研究与他们相比与钟麻痹在病人测试了 EWIM 并且发现了尖锐功能的改进。与粉刺在病人把 EWIM 与 WM 作比较的 RCT 显示出 signififi 斜面差别。我们的系统的评论的结果建议那的结论在有钟的病人在疼痛和尖锐症状改进的治疗为在他们或 WM 上的 EWIM 的优势有有限证据麻痹。从我们的分析的证据从包括的 RCT 和偏爱的高风险的低数字被限制。未来 RCT 看起来被保证。 | Myeong Soo Lee Byung-Cheul Shin Tae-Young Choi Jong-In KimDepartment of Acupuncture and Moxibustion Kyung Hee University Seoul South Korea | 2011 | Chinese Journal of Integrative Medicine2011,17,1: | 1 |
| 20 | Drawing of sprayed poly(vinyl alcohol) films显示文摘 | Chang Seoul Souk-II Mah | 1997 | Polymer1997,22,: | 1 |