全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:Reza Ramezanpour , Hassan Nahvi
来源:[J].Journal of the Brazilian Society of Mechanical Sciences and Engineering(IF 0.234), 2017, Vol.39 (1), pp.289-297Springer
摘要:In this paper, large deflection problem of a discontinuous cantilever beam with multiple step changes in material and/or geometry is analyzed using elliptic integral method. The main objective is to solve the problem without using direct integration methods such as Runge–Kutt...
作者:Cheng Zheng , Jin Li , Jia Li ...
来源:[J].BMC Cardiovascular Disorders(IF 1.457), 2017, Vol.17 (1)Springer
摘要:Ventricular arrhythmias (VAs) originating from the left ventricular summit is a challenge for radiofrequency catheter ablation (RFCA). The present study aimed to investigate the appropriate RFCA strategy for VAs originating from the left ventricular summit.
作者:Dongkai Dai , Xingshu Wang , Dejun Zhan ...
来源:[J].Sensors(IF 1.953), 2014, Vol.14 (9), pp.16322-16342DOAJ
摘要:A new method for dynamic measurement of deflections of the vertical (DOV) is proposed in this paper. The integration of an inertial navigation system (INS) and global navigation satellite system (GNSS) is constructed to measure the body’s attitude with respect to the astronom...
作者:Vladimír Sedlák , Marek Kožarík , Katarína Rusnáková
来源:[J].Acta Montanistica Slovaca(IF 0.094), 2005, Vol.10 (1), pp.1DOAJ
摘要:In mountains regions, the effect of vertical deflections appreciably exceeds the accuracy of most geodetic measurements and causes systematic errors of some cm per km at steep sightings. Therefore, crustal movements may be veiled by the enlarged error ellipses. The paper pres...
作者:Katarína Rusnáková , Marek Kožarík , Vladimír Sedlák
来源:[J].Acta Montanistica Slovaca(IF 0.094), 2005, Vol.10 (1), pp.1-5DOAJ
摘要:In mountains regions, the effect of vertical deflections appreciably exceeds the accuracy of most geodetic measurements and causes systematic errors of some cm per km at steep sightings. Therefore, crustal movements may be veiled by the enlarged error ellipses. The paper pres...
作者:M P MUTHURAJ , K NITHYAPRIYA
来源:[J].Sādhanā(IF 0.393), 2017, Vol.42 (12), pp.2171-2181Springer
摘要:... Factor of safety for load and deflection was computed. From the fatigue experiments, it is observed that the percentage reduction in stiffness is approximately 12% for 500,000 cycles.
作者:Luca Vittuari , Maria Alessandra Tini , Pierguido Sarti ...
来源:[J].Sensors(IF 1.953), 2016, Vol.16 (4)DOAJ
摘要:This paper compares three different methods capable of estimating the deflection of the vertical (DoV): one is based on the joint use of high precision spirit leveling and Global Navigation Satellite Systems (GNSS), a second uses astro-geodetic measurements and the third gravimet...
作者:Riccardo Barzaghi , Daniela Carrion , Massimiliano Pepe ...
来源:[J].Sensors(IF 1.953), 2016, Vol.16 (8)DOAJ
摘要:Recent studies on the influence of the anomalous gravity field in GNSS/INS applications have shown that neglecting the impact of the deflection of vertical in aerial surveys induces horizontal and vertical errors in the measurement of an object that is part of the observed scen...
作者:Long Tian , Bing Pan
来源:[J].Sensors(IF 1.953), 2016, Vol.16 (9)DOAJ
摘要:An advanced video deflectometer using actively illuminated LED targets is proposed for remote, real-time measurement of bridge deflection. The system configuration, fundamental principles, and measuring procedures of the video deflectometer are first described. To address the cha...
作者:Liang Hu , Yibing Liu , Wei Teng ...
来源:[J].Energies(IF 1.844), 2016, Vol.9 (11)DOAJ
摘要:A nonlinear coupled dynamic model of a rod fastening rotor under rub-impact and initial permanent deflection was developed in this paper. The governing motion equation was derived by the D’Alembert principle considering the contact characteristic between disks, nonlinear o...

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