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14篇 您的检索式:作者名="Savvari"
    题名 作者 年代 出处 被引量
1High-fidelity trajectory optimization for aeroassisted vehicles using variable order pseudospectral method显示文摘In this study,the problem of time-optimal reconnaissance trajectory design for the aeroassisted vehicle is considered.Different from most works reported previously,we explore the feasibility of applying a high-order aeroassisted vehicle dynamic model to plan the optimal flight trajectory such that the gap between the simulated model and the real system can be narrowed.A highly-constrained optimal control model containing six-degree-of-freedom vehicle dynamics is established.To solve the formulated high-order trajectory planning model,a pipelined optimization strategy is illustrated.This approach is based on the variable order Radau pseudospectral method,indicating that the mesh grid used for discretizing the continuous system experiences several adaption iterations.Utilization of such a strategy can potentially smooth the flight trajectory and improve the algorithm convergence ability.Numerical simulations are reported to demonstrate some key features of the optimized flight trajectory.A number of comparative studies are also provided to verify the effectiveness of the applied method as well as the high-order trajectory planning model.Runqi CHAI Antonios TSOURDOS AI SAVVARIS Senchun CHAI Yuanqing XIA 2021Chinese Journal of Aeronautics2021,34,1:3
2Paraneoplastic hu- morally mediated hypercalcemia induced by parathyroid hor- mone-related protein in gynecologic malignancies: a systematic review 显示文摘Savvari P Peitsidis P Alevizaki M 2009Onkologie2009,32,:1
3Stroke aetiology and pre-dictors of outcome in patients with heart failure and acute stroke:a 10-year fol ow-up study显示文摘Vemmos K Ntaios G Savvari P 0,,02:1
4Increased expres- sion of bFGF is associated with carotid atherosclerotic plaques instability engaging the NF-kappaB pathway 显示文摘Sigala F Savvari P Liontos M et ai 2010J Cell Mol Med2010,14,9:1
5Stroke aetiology and predictors of outcome in patients with heart failure and acute stroke:a 10 year follow-up study 显示文摘Vemmos K Ntaios G Savvari P 2012Eur J Heart Fail2012,14,2:1
6Burkitt's lymphoma in pregnancy with bilateral breast involvement: case report with review of the literature 显示文摘Savvari P Matsouka C Barbaroussi D 2010Onkologie2010,33,89:1
7Ankle‐brachial index long‐term outcome after first‐ever ischaemic stroke显示文摘H. Milionis A. Vemmou G. Ntaios K. Makaritsis E. Koroboki V. Papavasileiou P. Savvari K. Spengos M. Elisaf K. Vemmos 2013Eur J Neurol2013,,11:1
8Increased expres- sion of bFGF is associated with carotid atherosclerotic plaques instability engaging the NF-kappa B pathway显示文摘Sigala F Savvari P Liontos M 2010J Cell Mol Med2010,14,9:1
9Stroke aetiology and predictors of outcome in patients with heart failure and acute stroke:a 10-year followup study显示文摘Vemmos K Ntaios G Savvari P 2012Eur J Heart Fail2012,14,:1
10Increased expression of bFGF is associated with carotid atherosclerotic plaques in stability engaging the NF-kappaB pathway 显示文摘Sigala F Savvari P Liontos M 2010J Cell Molecul Med2010,14,9:1
11Increased expression of bFGF isassociated with carotid atherosclerotic plaques instability engaging theNF-kappaB pathway显示文摘Sigala F Savvari P Liontos M 2010J Cell Mol Med2010,14,9:1
12Increased expression ofbFGF is associated with carotid atherosclerotic plaques instabilityengaging the NF kappa B pathway显示文摘Sigala FV Savvari P Liontos M 2010J Cell Mol Med2010,14,9:1
13Increased expression of bFGF is associated with carotid atherosclerotic plaques instability engaging the NF-kappaB pathway显示文摘Sigala F Savvari P Liontos M 2010J Cell Mol Med2010,14,9:1
14Terrain based co-operative UAV mapping of complex obstacles using 2-D splinegon显示文摘Purpose-This paper aims to describe a recently proposed algorithm in terrain-based cooperative UAV mapping of the unknown complex obstacle in a stationary environment where the complex obstacles are represented as curved in nature.It also aims to use an extended Kalman filter(EKF)to estimate the fused position of the UAVs and to apply the 2-D splinegon technique to build the map of the complex shaped obstacles.The path of the UAVs are dictated by the Dubins path planning algorithm.The focus is to achieve a guaranteed performance of sensor based mapping of the uncertain environments using multiple UAVs.Design/methodology/approach–An extended Kalman filter is used to estimate the position of the UAVs,and the 2-D splinegon technique is used to build the map of the complex obstacle where the path of the UAVs are dictated by the Dubins path planning algorithm.Findings-The guaranteed performance is quantified by explicit bounds of the position estimate of the multiple UAVs for mapping of the complex obstacles using 2-D splinegon technique.This is a newly proposed algorithm,the most efficient and a robust way in terrain based mapping of the complex obstacles.The proposed method can provide mathematically provable and performance guarantees that are achievable in practice.Originality/value-The paper describes the main contribution in mapping the complex shaped curvilinear objects using the 2-D splinegon technique.This is a new approach where the fused EKF estimated positions are used with the limited number of sensors’measurements in building the map of the complex obstacles.Samuel B.Lazarus Antonios Tsourdos Brian A.White Peter Silson Al Savvaris Camille-Alain Rabbath Nicolas Lèchevin 2012International Journal of Intelligent Computing and Cybernetics2012,5,3:0
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