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科学家合成新核素铀-214（图）
科学家 新核素铀-214
2021/4/16
近日，中国科学院近代物理研究所研究团队首次合成新核素铀-214，并在重核区首次发现强的质子-中子相互作用导致α衰变中α粒子形成几率显著增强的现象。相关研究于4月14日发表在《物理评论快报》。寻找和合成极端条件下的原子核是当前核物理研究的重要课题。α衰变是重核区原子核的普遍衰变模式。虽然α衰变规律已经被研究了一百多年，但是原子核理论依然无法完美解释：α粒子究竟是如何在原子核中形成的？它的形成又受到哪...
分析肺部小结节的多层螺旋CT (MSCT)表现，以期提高良恶性小结节诊断的正确率。方法 回顾性分析江苏省太湖疗养院 2011年 3月至 2017年 4月间收治的 214例经病理证实或随访复查证实的肺部小结节MSCT表现，采用SPSS19.0统计软件分析良恶性之间是否存在差异。
3D DIGITAL MODELS FOR A WIDESPREAD MUSEUM: THE RENON’S “BAUERNHÖFE”
Architectural Heritage Digital Models Museum
2019/3/2
The aim of the paper is to study the characteristics of different 3D digital models (point clouds, mesh, CSG, BIM) for the realization of a museum of historical buildings widespread in the territory o...
研究人员发现了 214 种以前从未见过的 RNA 病毒，它们潜伏在青蛙，鱼类和爬行动物的体内。我们以往研究 RNA 病毒时，通常会忽略掉这些动物。
近日，我国科学家张永振带领的研究团队新发现了214种RNA病毒。这对于提高我国乃至世界对新发突发传染病的防控能力，甚至为进一步研究生命的起源进化具有重大意义。
Investigating the variation of diameter and height of Populus sp. clone I-214 under various fertilization treatments in northern Greece – a case study
biomass production Entisols fertilizers general linear model multivariate procedure young poplar trees
2017/4/6
The study of young poplar tree characteristics like initial diameter and height as well as mineral fertilization that promotes the rapid growth of trees for biomass production was the aim of this rese...
LONG-TERM MONITORING OF GLACIER CHANGE AT GÖSSNITZKEES (AUSTRIA) USING TERRESTRIAL PHOTOGRAMMETRY
Terrestrial photogrammetry Monitoring Glacier change Consumer camera SfM Automation Gossnitzkees
2016/11/30
Gössnitzkees is a small heavily debris-covered cirque glacier (49.8 ha) located in the Schober Mountains, Hohe Tauern Range, Austrian Alps. Glacier nourishment is mainly due to avalanches descend...
Asymptotic Distribution of MisspeciÖed Random E§ects Estimator for a Dynamic Panel Model with Fixed E§ects When Both n and T are Large
panel model random e§ects
2015/9/22
We consider a dynamic panel AR(1) model with Öxed e§ects when both n and T are large. It is shown
that the MLE motivated by the random e§ects assumption is asymptotically unbiased even when the
...
The distinct e§ects of Information Technology and Communication Technology on Örm organization
organization delegation information technology communication technology the theory of the Ö rm
2015/7/15
Guided by theories of management by exception, we study the impact of Information andCommunication Technology on worker and plant manager autonomy and on span of control.We Önd, using an original...
Horst Ludwig StÖrmer（图）
Physical The Nobel Prize in physics. Daniel tsui Robert laughlin. Quantum fluid Fractional quantum hall effect
2014/7/10
Horst Ludwig StÖrmer (born April 6, 1949 in Frankfurt, Germany) is a German physicist who shared the 1998 Nobel Prize in Physics with Daniel Tsui and Robert Laughlin. The three shared the prize "...
PRELIMINARY RESULTS OF THE COMPARISON OF SATELLITE IMAGERS USING TUZ GÖLü AS A REFERENCE STANDARD
Remote Sensing Satellite Sensor Calibration Comparison
2014/4/25
Earth surfaces, such as deserts, salt lakes, and playas, have been widely used in the vicarious radiometric calibration of optical earth observation satellites. In 2009, the Infrared and Visible Optic...
A SURVEY OF LANDNET SITES FOCUSING ON TUZ GÖLü SALT LAKE, TURKEY
Remote Sensing Satellite Sensor Calibration Comparison CEOS WGCV IVOS LANDNET Sites
2014/4/25
Radiometric calibration is critical to ensure the accuracy, veracity, continuity and reliability of satellite data measured from multiple sensors and platforms, and is thus recognized as a key activit...
Degenerative Permafrost Engineering Geology Features Analysis and Forecasting of National Road 214
Degenerative Permafrost Forecast National Road 214
2011/12/20
The paper is based on information of permafrost engineering geology of National Road 214, and for a comparative, analysis the permafrost engineering geology features of National Road 214, Including pe...
青海：国道214线结古至囊谦公路正式开工建设
青海 国道214线 结古至囊谦公路 开工建设
2011/8/18
8月11日，国道214线结古至囊谦公路正式开工建设。国道214线结古至囊谦公路全长151.76公里，路线起点位于巴塘机场连接线交叉口处，经上巴塘、下拉秀乡、子曲河、查待格村、觉隆尕峡，终点至于K972+739.746处与现有的囊谦至多普玛段公路相接，工程总投资14亿元。
CHARACTERIZATION OF THE SPATIAL UNIFORMITY OF THE TUZ GÖLü CALIBRATION TEST SITE
Remote sensing Radiometric Accuracy Radiometry Satellite Sensor Calibration Quality
2014/6/12
Based on absolute radiometric calibration studies conducted in 2008 and 2009 using ground measurements and satellite image data, Tuz Gölü, a salt lake in Central Turkey, was internationally ackno...