检索结果-南通市图书馆

Magnetar giant flare originating from GrB 200415A:transient GeV emission, time-resolved E_(p)-L_(iso) correlation and implications

引用

research in Astronomy and Astrophysics 2021年第9期21卷 224-230页

作者： Vikas chand Jagdish C.joshi rahul Gupta Yu-Han Yang Dimple Vidushi Sharma Jun Yang Manoneeta Chakraborty Jin-Hang Zou Lang Shao Yi-Si Yang Bin-Bin Zhang Shashi Bhushan Pandey Ankush Banerjee Eman Moneer School of Astronomy and Space Science Nanjing UniversityNanjing 210093China Key Laboratory of Modern Astronomy and Astrophysics(Nanjing University) Ministry of EducationNanjing 210093China Aryabhatta research Institute of Observational Sciences(ArIES) Manora PeakNainital-263002India Department of Physics Deen Dayal Upadhyaya Gorakhpur UniversityGorakhpur 273009India Inter University Centre for Astronomy and Astrophysics PuneIndia DAASE Indian Institute of Technology IndoreKhandwa RoadSimrolIndore 453552India College of Physics Hebei Normal UniversityShijiazhuang 050024China Department of Physics and Astronomy University of NevadaLas VegasNV 89154USA Princess Nourah Bint Abdurhamn University Department of PhysicsKSA Riyadh 84428 Airport RoadKSA11671 Private Astronomer

Giant flares(GFs)are unusual bursts from soft gamma-ray repeaters(SGrs)that release an enormous amount of energy in a fraction of a *** afterglow emission of these SGr-GFs or GF candidates is a highly beneficial means of discerning their composition,relativistic speed and emission *** 200415A is a recent GF candidate observed in a direction coincident with the nearby Sculptor galaxy at 3.5 *** this work,we searched for transient gamma-ray emission in past observations by Fermi-LAT in the direction of GrB *** observations confirm that GrB 200415A is observed as a transient GeV source only once.A pure pair-plasma fireball cannot provide the required energy for the interpretation of GeV afterglow emission and a baryonic poor outflow is additionally needed to explain the afterglow emission.A baryonic rich outflow is also viable,as it can explain the variability and observed quasi-thermal spectrum of the prompt emission if dissipation is happening below the photosphere via internal *** the peak energy(Ep)of the time-resolved prompt emission spectra and their fluxes(Fp),we found a correlation between Ep and Fp or isotropic luminosity Liso for GrB *** supports the intrinsic nature of Ep-Liso correlation found in SGrs-GFs,hence favoring a baryonic poor *** results also indicate a different mechanism at work during the initial spike,and that the evolution of the prompt emission spectral properties in this outflow would be intrinsically due to the injection process.

关键词： gamma-rays:general stars:magnetars stars:flares methods:data analysis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

小麦叶角的变异和遗传及叶角与黑点病发病程度的关系

引用

国外作物育种 2003年第1期22卷 29-30页

作者： A.K.joshi r.chand 邱敦莲

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

role of joshi＇s external stabilization system with percutaneous screw fixation in high-energy tibial condylar fractures associated with severe soft tissue injuries

引用

Chinese Journal of Traumatology 2015年第6期18卷 326-331页

作者： Ashish Kumar Gupta rahul Sapra rakesh Kumar Som Prakash Gupta Devwart Kaushik Sahil Gaba Mahesh chand Bansal ratan Lal Dayma Department Of Orthopedics Bhagwan Mahavir Hospital New Delhi 110088 India Department of Orthopedics SMS Medical College & Hospitals Jaipur Jaipur Rajasthan 302004 India

Purpose： The treatment of high-energy tibial condylar fractures which are associated with severe soft tissue injuries remains contentious and challenging. In this study, we assessed the results of joshi＇s external stabilization system （JESS） by using the principle of ligamentotaxis and percutaneous screw fixation for managing high-energy tibial condylar fractures associated with severe soft tissue injuries. Methods： Between June 2008 and June 2010, 25 consecutive patients who were 17-71 years （mean, 39.7）, underwent the JESS fixation for high-energy tibial condylar fractures associated with severe soft tissue injuries. Out of 25 patients, 2 were lost during follow-up and in 1 case early removal of frame was done, leaving 22 cases for final follow-up. Among them, 11 had poor skin condition with abrasions and blisters and 2 were open injuries （Gustilo-Anderson grade I ＆ 11）. The injury mechanisms were motor vehicle accidents （n - 19）, fall from a height （n = 2） and assault （n - 1）. The fractures were classified according to Schatzker classification system. results： There were 7 type-V, 14 type-Vl and 1 type-IV Schatzker＇s tibial plateau fractures. The average interval between the injury and surgery was 6.8 days （range 2-13）. The average hospital stay was 13 days （range, 7-22）. The average interval between the surgery and full weight bearing was 13.6 weeks （range 11-20）. The average range of knee flexion was 121° （range 105°-135°）. The normal extension of the knee was observed in 20 patients, and an extensor lag of 5°-8° was noted in 2 patients. The complications included superficial pin tract infections （n 4） with no knee stiffness. Conclusion： JESS with lag screw fixation combines the benefit of traction, external fixation, and limited internal fixation, at the same time as allowing the ease of access to the soft tissue for wound checks, pin care, dressing changes, measurement of compartment pressure, and the monitoring of the neurovascular status. In a nutshell, JES

关键词： Tibial plateau fractures External stabilization system Ligamentotaxis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：