Results 81 to 90 of about 2,530,585 (292)

High‐Resolution Corrosion Fingerprinting of Alloy Libraries via Microdroplet Spectroelectrochemistry

Advanced Engineering Materials, EarlyView.
Ionic‐liquid microdroplet spectroelectrochemistry enables stable, localized electrochemical measurements over extended timescales. By coupling impedance spectroscopy, wetting analysis, finite‐element simulations, and operando Raman spectroscopy, it disentangles geometrical and electrochemical effects, opening new opportunities for rapid corrosion ...
Ekaterina Kurchavova, Oumaïma Gharbi, Mireille Turmine, Vincent Vivier   +3 more
wiley   +1 more source

Wiretap Channel in the Presence of Action-Dependent States and Noiseless Feedback

Journal of Applied Mathematics, 2013
We investigate the wiretap channel in the presence of action-dependent states and noiseless feedback. Given the message to be communicated, the transmitter chooses an action sequence that affects the formation of the channel states and then generates the
Bin Dai, A. J. Han Vinck, Yuan Luo
doaj   +1 more source

The MIMO wiretap channel [PDF]

2008 3rd International Symposium on Communications, Control and Signal Processing, 2008
We study the MIMO wiretap channel, a MIMO broadcast channel where the transmitter sends some confidential information to one user which is a legitimate receiver, while the other user is an eavesdropper. Perfect secrecy is achieved when the transmitter and the legitimate receiver can communicate at some positive rate, while ensuring that the ...
Oggier, Frédérique, Hassibi, Babak
openaire   +2 more sources

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

Advanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt, Yong Chen, Georg Hasemann, Benjamin Wahlmann, Carolin Körner, Manja Krüger   +5 more
wiley   +1 more source

Secure Spectrum-Sharing Wiretap Networks With Full-Duplex Relaying

IEEE Access, 2019
In this paper, we investigate the secrecy performance of dual-hop randomize-and-forward (RaF) cognitive wiretap networks over Rayleigh fading channels, in which the RaF relay is considered both as half-duplex (HD) and full-duplex (FD) operations ...
Zhihui Shang, Tao Zhang, Yueming Cai, Yongxiang Liu, Weiwei Yang   +4 more
doaj   +1 more source

Microenvironmental Reprogramming by 3D Anisotropic Cardiac Extracellular Matrix Induces Nuclear Remodeling and Epigenetic Maturation of Chemically Induced Cardiomyocytes

Advanced Functional Materials, EarlyView.
A 3D anisotropic hydrogel derived from heart extracellular matrix guides cytoskeletal alignment and nuclear remodeling in reprogrammed cardiomyocyte‐like cells. This study reveals how matrix alignment modulates nuclear envelope dynamics and chromatin state, triggering transcriptional and functional maturation.
Seung Ju Seo, Mi Jeong Lee, Hyun Wook Kang, Seonhee Byeon, Soo‐Kyoung Choi, Nakwon Choi, Seung‐Woo Cho, Yoonhee Jin   +7 more
wiley   +1 more source

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

Advanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg, Thomas W. Pfeifer, Chuanzhen Zhou, Yong Kyu Choi, Duk‐Hyun Choe, Patrick E. Hopkins, Jon F. Ihlefeld   +6 more
wiley   +1 more source

Ergodic secrecy capacity for downlink multiuser networks using switch‐and‐examine combining with post‐selection scheduling scheme

Electronics Letters, 2016
A novel threshold‐based scheduling scheme for multiuser downlink wiretap networks is addressed, which consist of a base station (BS), multiple legitimate users and multiple eavesdroppers.
Maoqiang Yang, Bangning Zhang, Yuzhen Huang, Daoxing Guo, Xu Yi   +4 more
doaj   +1 more source

Secure Polar Coding for the Two-Way Wiretap Channel

IEEE Access, 2018
In this paper, we consider the problem of polar coding for secure communications over the two-way wiretap channel, where two legitimate users communicate with each other simultaneously, while a passive eavesdropper overhears a combination of their ...
Mengfan Zheng, Meixia Tao, Wen Chen, Cong Ling   +3 more
doaj   +1 more source

Secrecy results for compound wiretap channels [PDF]

Problems of Information Transmission, 2013
We derive a lower bound on the secrecy capacity of the compound wiretap channel with channel state information at the transmitter which matches the general upper bound on the secrecy capacity of general compound wiretap channels given by Liang et al. and thus establishing a full coding theorem in this case.
Igor Bjelakovic, Holger Boche, Jochen Sommerfeld   +2 more
openaire   +2 more sources