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Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source

Photoswitching Conduction in Framework Materials

Advanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez, Stefan Hecht, Wolfgang Wenzel, Lars Heinke, Mariana Kozlowska   +4 more
wiley   +1 more source

Mechanical Properties of Architected Polymer Lattice Materials: A Comparative Study of Additive Manufacturing and CAD Using FEM and µ‐CT

Advanced Functional Materials, EarlyView.
This study examines how pore shape and manufacturing‐induced deviations affect the mechanical properties of 3D‐printed lattice materials with constant porosity. Combining µ‐CT analysis, FEM, and compression testing, the authors show that structural imperfections reduce stiffness and strength, while bulk material inhomogeneities probably enhance ...
Oliver Walker, Thierry Roland, Damien Favier, Antoine Egele, Michael Heymann, Cosima Stubenrauch   +5 more
wiley   +1 more source

Direction-of-Arrival Estimation Based on a Database Retrieval Technique [PDF]

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Compressive frequency-difference direction-of-arrival estimation

The Journal of the Acoustical Society of America, 2023
Direction-of-arrival estimation is difficult for signals spatially undersampled by more than half the wavelength. Frequency-difference beamforming [Abadi, Song, and Dowling (2012). J. Acoust. Soc. Am. 132, 3018–3029] offers an alternative approach to avoid such spatial aliasing by using multifrequency signals and processing them at a lower frequency ...
Jeung-Hoon Lee, Yongsung Park, Peter Gerstoft   +2 more
openaire   +2 more sources

Interferometer based Direction-Of-Arrival Detection System

2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM), 2018
This paper presents an interferometer-based direction of arrival (DoA) detection system. Unlike conventional six-port based phase discriminators, the proposed architecture uses only three couplers in combination with three receiving antennas. The modeling and analysis of the DoA detection scheme prove that it is possible to improve the measurement ...
Bilel Mnasri, Pascal Burasa, Serioja Tatu, Ke Wu   +3 more
openaire   +1 more source

High Resolution Estimation of Directions of Arrival

2005 IEEE 61st Vehicular Technology Conference, 2005
In this paper, we propose a novel system architecture that employs the flexible tree search based orthogonal matching pursuit (FTB-OMP) algorithm for direction of arrival estimation. It is shown by simulation results that the FTB-OMP algorithm has high estimation performance and resolution capability when compared to the MUSIC and OMP algorithms.
G.Z. Karabulut, T. Kurt, A. Yongacoglu
openaire   +2 more sources

Multiple target direction of arrival tracking

IEEE Transactions on Signal Processing, 1995
A new algorithm is presented for estimating the directions of arrival of signals from an unknown number of moving signal sources. The parameter space is a countable union of Cartesian products of the torus, each product space corresponding to a different number of signals reaching the sensor array. A Bayesian posterior probability measure is defined on
A. Srivastava, M.I. Miller, U. Grenander
openaire   +1 more source

A novel direction of arrival estimator

Journal of Electronics (China), 2004
A Direction Of Arrival(DOA) estimator based on the signal separation principle is introduced, and one of representative multidimensional estimators is established by introducing Matrix Operator projection signal steering Vector Excision(MOVE) operation.
Chao Shao, Guangyue Lu, Zheng Bao
openaire   +1 more source

Practical direction-of-arrival system evaluation

2015 IEEE Radar Conference, 2015
A system-level, performance evaluation of a direction-of-arrival (DOA) receiver is presented to show that exclusively optimising a single processing step can produce poor overall results. Monte-Carlo simulations of DOA receiver systems with different receiver architectures, integration methods and DOA algorithms are presented and evaluated.
J. R. van der Merwe, F. D. V. Maasdorp, W. P. du Plessis, L. P. Linde   +3 more
openaire   +1 more source