Results 61 to 70 of about 50,281 (233)

Categorical structures enriched in a quantaloid: orders and ideals over a base quantaloid

, 2004
Applying (enriched) categorical structures we define the notion of ordered sheaf on a quantaloid Q, which we call `Q-order'. This requires a theory of semicategories enriched in the quantaloid Q, that admit a suitable Cauchy completion.
Stubbe, Isar
core   +1 more source

Are species-area relationships from entire archipelagos congruent with those of their constituent islands? [PDF]

, 2010
Copyright © 2010 Blackwell Publishing Ltd.AIM To establish the extent to which archipelagos follow the same species–area relationship as their constituent islands and to explore the factors that may explain departures from the relationship.
Borges, Paulo A. V., Hortal, Joaquín, Jones, Owen R., Quicke, Donald L. J., Santos, Ana C., Triantis, Kostas A., Whittaker, Robert J.   +6 more
core   +1 more source

Continuity Pattern Structure of Target Scene in Support of Multiple-Channel ISAR Imagery

IEEE Access, 2019
This paper presents a multiple-channel ISAR system for multiple air-targets imaging by illuminating a sequence of N narrow and high-gain signal beams over a wide area.
Jingjing Wang, Meiru Liu, Hang Zhang, Shengliang Han, Liren Zhang   +4 more
doaj   +1 more source

Continuous variable entanglement in open quantum dynamics

, 2010
In the framework of the theory of open systems based on completely positive quantum dynamical semigroups, we give a description of the dynamics of entanglement for a system consisting of two uncoupled harmonic oscillators interacting with a thermal ...
Isar, Aurelian
core   +1 more source

Long‐Term (5‐Years) Outcomes of Current Drug‐Eluting Stents in Percutaneous Coronary Intervention: A Network Meta‐Analysis of Randomized Controlled Trials

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Various drug‐eluting stents (DES) are currently used for percutaneous coronary intervention (PCI). However, long‐term trials reveal inconsistent results in head‐to‐head comparisons. Aims To conduct a network meta‐analysis of relevant trials to assess the performance of different DES currently used in PCI.
Aman Goyal, Humza Saeed, Sonia Hurjkaliani, Yusra Mashkoor, Abdullah, Gauranga Mahalwar, Ankur Kalra, Grant W. Reed   +7 more
wiley   +1 more source

Employment of artificial intelligence for an unbiased evaluation regarding the recovery of right ventricular function after mitral valve transcatheter edge‐to‐edge repair

European Journal of Heart Failure, EarlyView.
Impact of mitral transcatheter edge‐to‐edge repair (M‐TEER) on left and right heart function. IQR, interquartile range; LA, left atrial; RVEF, right ventricular ejection fraction; sPAP, systolic pulmonary artery pressure; TAPSE, tricuspid annular plane systolic excursion. Abstract Aims Long‐standing severe mitral regurgitation (MR) leads to left atrial
Vera Fortmeier, Amelie Hesse, Teresa Trenkwalder, Márton Tokodi, Attila Kovács, Elena Rippen, Jule Tervooren, Michelle Fett, Gerhard Harmsen, Shinsuke Yuasa, Moritz Kühlein, Héctor Alfonso Alvarez Covarrubias, Moritz von Scheidt, Ferdinand Roski, Muhammed Gerçek, Tibor Schuster, N. Patrick Mayr, Erion Xhepa, Karl‐Ludwig Laugwitz, Michael Joner, Volker Rudolph, Mark Lachmann   +21 more
wiley   +1 more source

A Novel Passive Jamming Method Against ISAR Based on Resonance Absorption Effect of Metamaterials

IEEE Access, 2018
Based on resonance absorption effect of metamaterials, a novel passive jamming method against Inverse Synthetic Aperture Radar (ISAR) is proposed in this paper.
Jin Xu, Bowen Bai, Chunxi Dong, Guoqing Zhao   +3 more
doaj   +1 more source

Inverse Synthetic Aperture Radar Imaging Based on the Non-Convex Regularization Model [PDF]

Radioengineering
Compressed Sensing (CS) has been shown to be an effective technique for improving the resolution of inverse synthetic aperture radar (ISAR) imaging and reducing the hardware requirements of radar systems.
Y. Zhao, F. Yang, C. Wang, F. Ye, F. Zhu, Y. Liu   +5 more
doaj  

Echo Preprocessing to Enhance SNR for 2D CS-Based ISAR Imaging Method

Sensors, 2018
A new CS-based inverse synthetic aperture radar (ISAR) imaging framework is proposed to enhance both the image performance and the robustness at a low SNR. An ISAR echo preprocessing method for enhancing the ISAR imaging quality of compressed sensing (CS)
Zhiping Yin, Xinfei Lu, Weidong Chen
doaj   +1 more source

Deformed quantum harmonic oscillator with diffusion and dissipation [PDF]

Physica A 310, 364 (2002), 2007
A master equation for the deformed quantum harmonic oscillator interacting with a dissipative environment, in particular with a thermal bath, is derived in the microscopic model by using perturbation theory. The coefficients of the master equation and of equations of motion for observables depend on the deformation function.
arxiv   +1 more source