检索结果-南通市图书馆

Suitable triggering algorithms for detecting strong ground motions using MEMS accelerometers

Earthquake Engineering and Engineering Vibration 2015年第1期14卷 27-35页

作者： Ravi Sankar Jakka siddharth garg Department of Earthquake Engineering Indian Institute of Technology

With the recent development of digital Micro Electro Mechanical System （MEMS） sensors, the cost of monitoring and detecting seismic events in real time can be greatly reduced. Ability of MEMS accelerograph to record a seismic event depends upon the efficiency of triggering algorithm, apart from the sensor＇s sensitivity. There are several classic triggering algorithms developed to detect seismic events, ranging from basic amplitude threshold to more sophisticated pattern recognition. Algorithms based on STA/LTA are reported to be computationally efficient for real time monitoring. In this paper, we analyzed several STA/LTA algorithms to check their efficiency and suitability using data obtained from the Quake Catcher Network （network of MEMS accelerometer stations）. We found that most of the STA/LTA algorithms are suitable for use with MEMS accelerometer data to accurately detect seismic events. However, the efficiency of any particular algorithm is found to be dependent on the parameter set used （i.e., window width of STA, LTA and threshold level）.

关键词： strong ground motion triggering algorithms seismic event detection MEMS accelerometers STA/LTA based algorithms

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

Special Section on Attacking and Protecting Artificial Intelligence

引用

CAAI Transactions on Intelligence Technology 2021年第1期6卷 1-2页

作者： Shivam Bhasin siddharth garg Francesco Regazzoni Nanyang Technological University Singapore New York University New YorkUSA University of Amsterdam Science Park 904AmsterdamThe Netherlands ALaRI‐USI LuganoSwitzerland

Modern Artificial Intelligence(AI)systems largely rely on advanced algorithms,including machine learning techniques such as deep *** research community has invested significant efforts in understanding these algorithms,optimally tuning them,and improving their performance,but it has mostly neglected the security facet of the *** attacks and exploits demonstrated that machine learning‐based algorithms are susceptible to attacks targeting computer systems,including backdoors,hardware Trojans and fault attacks,but are also susceptible to a range of attacks specifically targeting them,such as adversarial input perturbations.

关键词： tuning hardware neglected

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

Utility of trans-vaginal ultrasound in diagnosis and follow-up of non-pregnant sexually active females with lower ureteric calculi

引用

Asian Journal of Urology 2020年第1期7卷 45-50页

作者： siddharth Pandey Tanica Pandey Apul Goel Ajay Aggarwal Deepanshu Sharma Tushar Pandey Satya sankhwar Gaurav garg Department of Urology King George’s Medical UniversityLucknowIndia Department of Radiology Raghav Pathlabs and ImagingHaldwaniIndia Department of Pathology Post Graduate Institute of Medical Education and ResearchChandigarhIndia

objective:To assess the utility of trans-vaginal ultrasonography in evaluation of non-pregnant sexually active female patients with lower ureteric ***:A prospective study was done from January 2015 to December 2017 including non-pregnant sexually active females with suspected ureteric ***-abdominal ultrasound was initially done in all *** those patients in whom trans-abdominal ultrasound was inconclusive or there was indirect evidence of lower ureteric calculus in form of ureteral dila-tion but no calculus was evident,trans-vaginal ultrasound was *** patients with ureteric calculi detected on trans-vaginal ultrasound and kept on conservative management were also followed up with trans-vaginal ***-contrast computed tomography was done in patients with inconclusive trans-vaginal ***:As per the study protocol,156 out of the total 468 patients evaluated by trans-abdominal ultrasound were eligible for trans-vaginal ***-vaginal ultrasound was done in 149 patients,as seven patients did not give ***-nine patients were detected with a lower ureteric calculus on trans-vaginal ultrasound and 27 patients had gyne-cologic or other cause for their ***-three patients had an inconclusive trans-vaginal ultrasound of which 36 underwent non-contrast computed tomography,among them only one patient had a lower ureteric *** free status could be easily demonstrated on follow-up trans-vaginal ultrasound.

关键词： Trans-abdominal ultrasound Trans-vaginal ultrasound Lower ureteric calculus Ureteric colic Ureter

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

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：