Searched for: author%3A%22Zhang%2C+Q.%22
(1 - 14 of 14)
document
Krasnov, O.A. (author), Zhang, Q. (author), Yarovoy, Alexander (author)
In this paper, the full calibration chain of FMCW radar with simultaneous transmission of two orthogonally polarized orthogonal waveforms is considered. Specifically for this type of polarimetric radar, compensation of signals’ biases and equalization of the amplification gains of the parallel polarimetric channels in the receiver are jointly...
conference paper 2024
document
Yao, Y. (author), Zhang, Q. (author), HU, Y. (author), Meo, C. (author), Wang, Y. (author), Nanetti, Andrea (author), Dauwels, J.H.G. (author)
We typically search for images by keywords, e.g., when looking for images of apples, we would enter the word “apple” as query. However, there are limitations. For example, if users input keywords in a specific language, then they may miss results labeled in other languages. Moreover, users may have an image of the object they want to obtain more...
conference paper 2022
document
Zhang, Q. (author), Pan, W. (author), Reppa, V. (author)
This paper presents a novel model-reference reinforcement learning algorithm for the intelligent tracking control of uncertain autonomous surface vehicles with collision avoidance. The proposed control algorithm combines a conventional control method with reinforcement learning to enhance control accuracy and intelligence. In the proposed...
journal article 2021
document
Zhang, Q. (author)
China is facing the dual challenges of urbanization and motorization(Jing, 2008). The poorly organized urban centers and traditional residential planning are unable to meet the increasingly diverse demand of people. To solve these problems, the TOD model and the emerging community living circle are being favored by policy makers. Promoting urban...
master thesis 2020
document
Zhang, Q. (author), Hoekstra, J.S.C.M. (author)
The 2014 hukou reform introduced by the Chinese central government was a turning point in China’s policies towards migration. Different from the previous hukou policies, which were largely exclusionary, the reformed policy encouraged migrants to permanently settle in their destination cities and make use of the public services available there....
journal article 2020
document
Zhang, Q. (author), Pan, W. (author), Reppa, V. (author)
This paper presents a novel model-reference reinforcement learning control method for uncertain autonomous surface vehicles. The proposed control combines a conventional model-based control method with deep reinforcement learning. With the conventional model-based control, we can ensure the learning-based control law provides closed-loop...
conference paper 2020
document
Zhang, Q. (author)
During the launching vehicles design and their optimization process, the implementing of aerodynamic characteristics (AC) database is quite important. Accuracy of such database determines quality of the pre-flight simulation, trajectory and even the whole design direction. However, the database building process is one of the most challenging...
master thesis 2017
document
The behavior of particles in compressible turbulence has been seldom investigated to date despite its importance in many natural and industrial flows. Direct numerical simulations of particle-laden compressible isotropic turbulence are performed to study the preferential concentration of particles and the underling mechanisms. It turns out that...
conference paper 2015
document
Zhang, Q. (author)
doctoral thesis 2013
document
Zhang, Q. (author), Ye, G. (author)
Portland cement paste is a multiphase compound mainly consisting of calcium-silicate-hydrate (CSH) gel, calcium hydroxide (CH) crystal, and unhydrated cement core. When cement paste is exposed to high temperature, the dehydration of cement paste leads to not only the decline in strength, but also the increased pore pressure in the paste. In this...
journal article 2012
document
Zhang, Q. (author), Ye, G. (author)
When a concrete structure is exposed to high temperature, the mechanical damage and chemical transformation take place simultaneously, which will change the microstructure of material. On the other hand, the mechanical properties and transport properties depend on the development of microstructure of cement paste. In order to study the...
journal article 2011
document
Fernandez Arguedas, V. (author), Zhang, Q. (author), Chandramouli, K. (author), Izquierdo, E. (author)
In this paper, we present a part of surveillance centric indexing framework aimed at studying the performance of multi-feature fusion technique for indexing objects from surveillance videos. The multi-feature fusion algorithm determines an optimal metric for fusing low-level descriptors extracted from different feature space. These low-level...
conference paper 2011
document
Hatami, M. (author), Bauer, G.E.W. (author), Zhang, Q. (author), Kelly, P.J. (author)
We model and evaluate the Peltier and Seebeck effects in magnetic multilayer nanostructures by a finite-element theory of thermoelectric properties. We present analytical expressions for the thermopower and the current-induced temperature changes due to Peltier cooling/heating. The thermopower of a magnetic element is in general spin polarized,...
journal article 2009
document
Hatami, M. (author), Bauer, G.E.W. (author), Zhang, Q. (author), Kelly, P.J. (author)
journal article 2007
Searched for: author%3A%22Zhang%2C+Q.%22
(1 - 14 of 14)