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Gravitational wave astrophysics, data analysis and multimessenger astronomy

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Science China(Physics,Mechanics & Astronomy) 2015年第12期58卷 44-64页

作者： LEE Hyung Mok LE BIGOT Eric-Olivier DU ZhiHui LIN ZhangXi GUO XiangYu WEN LinQing PHUkON khun Sang PANDEY Vihan BOSE Sukanta FAN Xi-Long HENDRY Martin Department of Physics and Astronomy Seoul National University Research Institute of Information Technology Tsinghua National Laboratory for Information Science and TechnologyTsinghua University Laboratoire Astro Particule et Cosmologie (APC) Universit Paris Diderot-Paris 7 Bc/timent Condorcet Case 7020 75205 Paris Cedex 13 France Tsinghua National Laboratory for Information Science and Technology Department of Computer Science and TechnologyTsinghua University School of Physics The University of Western Australia Department of Physics IIT Kanpur Inter-University Centre for Astronomy and Astrophysics Department of Physics & Astronomy Washington State University School of Physics and Electronics Information Hubei University of Education SUPA School of Physics and Astronomy University of Glasgow

This paper reviews gravitational wave sources and their detection. One of the most exciting potential sources of gravitational waves are coalescing binary black hole systems. They can occur on all mass scales and be formed in numerous ways, many of which are not understood. They are generally invisible in electromagnetic waves, and they provide opportunities for deep investigation of Einstein's general theory of relativity. Sect. 1 of this paper considers ways that binary black holes can be created in the universe, and includes the prediction that binary black hole coalescence events are likely to be the first gravitational wave sources to be detected. The next parts of this paper address the detection of chirp waveforms from coalescence events in noisy *** analysis is computationally intensive. Sect. 2 reviews a new and powerful method of signal detection based on the GPUimplemented summed parallel infinite impulse response filters. Such filters are intrinsically real time alorithms, that can be used to rapidly detect and localise signals. Sect. 3 of the paper reviews the use of GPU processors for rapid searching for gravitational wave bursts that can arise from black hole births and coalescences. In sect. 4 the use of GPU processors to enable fast efficient statistical significance testing of gravitational wave event candidates is reviewed. Sect. 5 of this paper addresses the method of multimessenger astronomy where the discovery of electromagnetic counterparts of gravitational wave events can be used to identify sources, understand their nature and obtain much greater science outcomes from each identified event.

关键词： gravitational waves data analysis multimessenger

ICESat-1/GLAS数据湖泊水位监测研究进展

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遥感技术与应用 2017年第1期32卷 14-19页

作者：葛莉习晓环王成 khun-Neay khuon 中国科学院遥感与数字地球研究所数字地球重点实验室北京100094 中国科学院大学北京100049 柬埔寨吴哥窟世界文化遗产管理局暹粒999094

湖泊水位动态监测和调查对湖泊资源利用、水循环过程和生态环境变化等研究具有重要意义。ICESat-1/GLAS激光测高数据已经在全球陆地、森林植被和极地冰盖变化监测等方面得到了广泛应用,但在湖泊、河流等内陆水体监测方面的应用研究相对... 详细信息

湖泊水位动态监测和调查对湖泊资源利用、水循环过程和生态环境变化等研究具有重要意义。ICESat-1/GLAS激光测高数据已经在全球陆地、森林植被和极地冰盖变化监测等方面得到了广泛应用,但在湖泊、河流等内陆水体监测方面的应用研究相对较少。本研究系统分析了国内外利用GLAS数据,以及GLAS和其他卫星测高数据、光学遥感数据联合反演湖泊物理参数方面的研究进展,探讨了该数据在湖泊应用中的关键技术和难点,如GLAS数据的精度评价、湖泊脚印点自动提取等,分析了目前研究中存在的问题,以期对我国即将发射的高分七号测绘卫星在水文方面的应用提供参考。

关键词：湖泊水位 GLAS 星载激光测高多源遥感精度评价

东南亚教育部长组织所涉地区科学、数学和技术教育的现状

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全球教育展望 2002年第2期31卷 23-26页

作者： Tan khun Ong Eng Tek 东南亚教育部组织地区科学和数学教育中心东南亚教育部科学处地区科学和数学教育中心

现状概述九十年代末科学、数学和技术教育的状况看来会延续到新的千年.这一状况的主要特点是:在认识方面更加强调学生自己构筑知识而不是由教师向学生灌输知识.

关键词：东南亚地区科学数学技术教育现状

Clinical outcome after pulmonary metastasectomy from primary hepatocellular carcinoma:Analysis of prognostic factors

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World Journal of Gastroenterology 2008年第37期14卷 5717-5722页

作者： Jong-Bum kwon khun Park Young-Du kim Jong-Hee Seo Seok-Whan Moon Deog-Gon Cho Yong-Whan kim Dong-Goo kim Seung-kew Yoon Hyeon-Woo Lim Department of Thoracic and Cardiovascular Surgery the Catholic University of KoreaSeoul 137-701 Korea Department of Surgery the Catholic University of KoreaSeoul 137-701 Korea Department of Internal Medicine the Catholic University of KoreaSeoul 137-701 Korea Department of Preventive Medicine the Catholic University of KoreaSeoul 137-701 Korea

AIM： To review the surgical outcomes in terms of the surgical indications and relevant prognostic factors. METHODS： Sixteen patients underwent therapeutic lung surgery between March 1999 and May 2006. The observation period was terminated on May 31, 2007. The surgical outcomes and the clinicopathological factors were compared. RESULTS： There was no mortality or major morbidity encountered in this study. The mean follow-up period after metastasectomy was 26.7 ＋ 28.2 （range： 1-99 mo）, and the median survival time was 20 mo. The 1- and 5-year survival rates were 56% and 26%, respectively. At the end of the follow-up, 1 patient died from hepatic failure without recurrence, 6 died from hepatic failure with a recurrent hepatocellular carcinoma （HCC）, and 4 died from recurrent HCC with cachexia. Among several clinical factors, kaplan Meier analysis revealed as a treatment for the that liver transplantation primary lesion, grade of cell differentiation, and negative evidence HBV infection were independent predictive factors. On Cox＇s proportional hazard model, there were no significant factors affecting survival after pulmonary metastasectomy in patients with HCC. CONCLUSION： A metastasectomy should be performed before other treatments in selected patients, Although not significant, patients with liver transplantation of a primary HCC survived longer, Liver transplantation might be the most beneficial modality that can offer patients better survival, A multi- institutional and collaborative study would be needed for identifying clinical prognostic factors predicting survival in patients with HCC and lung metastasis.

关键词： Hepatocellular carcinoma Pulmonary metastasis Metastasectomy Liver transplantation Thoracoscopy

人类学与散居人口研究:侨乡研究中的一些注意事项

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广西民族学院学报（哲学社会科学版） 2005年第4期27卷 55-62页

作者：柯群英港大学社会学系

探讨如何在侨乡研究中运用多学科方法。在研究位于大陆的侨乡村庄和他们散居在海外的亲属之间关系的时候,有必要考虑这些华人群体在互动过程中的空间和时间问题。因此,对地理空间和历史时间的超越要求一种结合人类学和散居人口研究的方... 详细信息

探讨如何在侨乡研究中运用多学科方法。在研究位于大陆的侨乡村庄和他们散居在海外的亲属之间关系的时候,有必要考虑这些华人群体在互动过程中的空间和时间问题。因此,对地理空间和历史时间的超越要求一种结合人类学和散居人口研究的方法,以便理解侨乡研究中不断遇到的新的社会关系的出现和兴起的过程。

关键词：人类学散居人口研究侨乡研究跨国关系地理空间和历史时间华人宗族

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利用资源三号卫星数据提取经济林研究

地理空间信息 2016年第5期14卷 106-108,8页

作者：廖凯涛习晓环王成齐述华 kHUON khun-neay 中国科学院遥感与数字地球研究所数字地球重点实验室北京100094 联合国教科文组织国际自然与文化遗产空间技术中心北京100094 江西师范大学地理与环境学院江西南昌330022 柬埔寨吴哥窟世界文化遗产管理局柬埔寨暹粒999094

选择柬埔寨吴哥窟北部库仑山国家森林公园为研究区,通过对资源三号卫星数据进行大气校正、多光谱与全色数据融合等处理,结合经济林固有的光谱、纹理等特征,利用面向对象的分类方法,构建了适于资源三号卫星数据的快速提取经济林信息的土... 详细信息

选择柬埔寨吴哥窟北部库仑山国家森林公园为研究区,通过对资源三号卫星数据进行大气校正、多光谱与全色数据融合等处理,结合经济林固有的光谱、纹理等特征,利用面向对象的分类方法,构建了适于资源三号卫星数据的快速提取经济林信息的土地利用分类规则。通过野外实地调查和验证表明,资源三号卫星数据可以满足土地利用中经济林信息提取的需求,选择合适的阈值即可完整提取经济林及其空间分布,正确率可达85.97%;资源三号卫星数据在土地利用精细分类和信息提取中具有较大的应用潜力。

关键词：资源三号经济林信息提取土地利用吴哥遗产地

基于SPOT-5影像的吴哥地区水体提取方法研究

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测绘工程 2016年第3期25卷 51-55页

作者：杨甲张珂刘丽王心源宋经纬刘洁 khun-Neay khuon 安徽师范大学国土资源与旅游学院安徽芜湖241000 山东科技大学测绘科学与工程学院.山东青岛266510 中国科学院遥感与数字地球研究所数字地球重点实验室北京100094 柬埔寨吴哥窟世界文化遗产管理局柬埔寨暹粒

对于一个较小研究区提取地物信息,需要更高的空间分辨率和适合的光谱信息。以柬埔寨吴哥窟西北部为研究对象,开展基于SPOT-5影像的水体信息提取方法研究。通过分析研究区内的地物光谱特征信息,发现各地物在绿色波段和短波红外波段虽然... 详细信息

对于一个较小研究区提取地物信息,需要更高的空间分辨率和适合的光谱信息。以柬埔寨吴哥窟西北部为研究对象,开展基于SPOT-5影像的水体信息提取方法研究。通过分析研究区内的地物光谱特征信息,发现各地物在绿色波段和短波红外波段虽然都有下降趋势,但是水体的变化程度最大。利用这个信息建立决策树的一种水体提取模型:Band3/Band4>1.73并且Band1>Band4。通过与NDWI法、决策树模型提取精度进行对比,证明该模型提取精度有较大提高,可有效地消除水田对提取精度的影响。

关键词： SPOT-5影像水体提取比值法决策树法

Distribution Pattern and Seasonal Variation of Bird Species from Semi-Urban Area of Taungoo Environs

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American Journal of Operations Research 2020年第4期10卷 111-121页

作者： San San Oo Nyo Nyo Aung Aye Aye khine Myo Sandar Win San Aung Tun Tun Myint khin khin Yone Nwe Nwe Aung khin Maw Maw Myint Aung Aung khin Mar Lwin Soe Soe Win Nyunt Nyunt Oo Biak.khun Aye Zoology Department University of Yangon Yangon Myanmar Zoology Department East Yangon University Yangon Myanmar Zoology Department Taungoo Uniersity Taungoo Myanmar Zoology Department Kyaing Tong Uniersity Kyaing Tong Myanmar Zoology Department Dagon University Yangon Myanmar Department of Zoology Hpaan University Hpann Myanmar Zoology Department Hakar Uniersity Hakar Myanmar

The environs of Taungoo Township, Bago Region are one of the high biodiversity areas in Myanmar, locating eastern side of the high mountain ranges of Middle Yoma. The dense of every green and deciduous forest in the middle Middle Yoma were logging since 10 - 20 years ago. The birds inhabiting in that area have to refuge in suitable habitats nearby. The resent status of bird species is needed to assess the diversity of birds with the respect to distribution and seasonal variation after the construction of Yangon-Nepyitaw, Myanmar after twenty years ago. A total of 50 species of 27 genera, 22 families under nine orders were recorded. That represented 44 resident species (32 terrestrial species and 12 water bird species), and 6 species of migratory birds (1 terrestrial species and 5 water bird species). As habitat utilization, 24 bird species in paddy fields, 21 species in scattered trees, 33 species in wetland and 25 species in forest habitat types were investigated. Some species used more than one habitat types. According to the assessment of abundance categories based on the calculation of individual numbers of the birds, abundant category (3 species), common bird (1 species), frequent category (5 species), uncommon category (3 species) and rare species (28 species) were categorized. Hence, bird community was still sustainable in this area. In the aspect of conservation status, all recorded bird species were under least concern categories, according to the IUCN Redlist in the study area.

关键词： Species Diversity Birds Habitat Utilization Taungoo Environs

促进黄金市场的创新融合与协同发展——记2024中国国际黄金大会黄金产业高峰论坛圆桌对话

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中国黄金珠宝 2024年第4期 15-18页

作者：王萧周灿坤施旭东坤·帕万格根杨瑞琪黄仕坤不详深圳百泰投资控股集团有限公司中国工商银行贵金属业务部党委泰国黄金贸易协会 YLG金银业国际集团中国建设银行贵金属及大宗商品业务部大华银行(中国)有限公司环球金融部深圳金雅福控股集团有限公司

7月28日下午,一场以“黄金市场协同发展”为议题的黄金产业高峰论坛圆桌对话在国家会展中心(上海)举行。来自商业银行、黄金生产交易企业、知名零售商等黄金产业链上的精英翘楚,共同参与了一场别开生面的圆桌对话,为促进黄金市场的创新... 详细信息

7月28日下午,一场以“黄金市场协同发展”为议题的黄金产业高峰论坛圆桌对话在国家会展中心(上海)举行。来自商业银行、黄金生产交易企业、知名零售商等黄金产业链上的精英翘楚,共同参与了一场别开生面的圆桌对话,为促进黄金市场的创新融合与协同发展、把握行业新趋势、应对市场新挑战、共谋黄金产业繁荣发展新路径提供了思考与建议。

关键词：产业高峰论坛圆桌对话黄金市场融合与协同黄金产业商业银行发展新路径零售商