Results 91 to 100 of about 2,530,585 (292)

Si‐Doped Nanocrystalline Diamond as Highly Sensitive Luminescence Thermometer for the Physiological Temperature Range

Advanced Functional Materials, EarlyView.
In this work, diamonds with negative charged silicon‐vacancy (SiV−) centers have been designed for use as thermometers in biomedical applications. Multiparametric analysis of the emission characteristics of the SiV− centers provides extraordinary sensitivity for temperature detection in the physiological temperature range.
María Gragera, Iván Carrillo‐Berdugo, Josue Millán, Paulius Pobedinskas, Antonio Freire, Ken Haenen, Javier Navas   +6 more
wiley   +1 more source

Charge‐Tunable Coacervate Micelles for Separator Engineering in Lithium‐Sulfur Batteries

Advanced Functional Materials, EarlyView.
A separator engineering strategy based on charge‐tunable complex coacervate core micelles (C3Ms) is presented to form an ion‐selective layer regulating polysulfide transport in Li–S batteries. The micelles enable uniform adsorption onto commercial polypropylene separators and infiltration throughout the internal pore network, suppressing polysulfide ...
Yongsheng Zhang, J. R. Andrade Aguirre, Julien Es Sayed, Chongyang Jiang, Yuxuan Zhang, Xiaolong He, Yinyu Xiang, Yutao Pei, Xiangping Zhang, Petra Ruldolf, Marleen Kamperman, Giuseppe Portale   +11 more
wiley   +1 more source

Secrecy Rate Analysis of Opportunistic User Scheduling in Uplink Networks With Potential Eavesdroppers

IEEE Access, 2019
In this paper, we investigate two user scheduling algorithms (optimal user and threshold-based user scheduling algorithms) when we consider potential eavesdroppers in an uplink wiretap network. The optimal user scheduling (OUS) algorithm selects the user
Inkyu Bang, Bang Chul Jung
doaj   +1 more source

Wiretapped Commitment Over Binary Channels

2024 IEEE International Symposium on Information Theory (ISIT)
We propose the problem of wiretapped commitment, where two parties, say committer Alice and receiver Bob, engage in a commitment protocol using a noisy channel as a resource, in the presence of an eavesdropper, say Eve. Noisy versions of Alice's transmission over the wiretap channel are received at both Bob and Eve.
Yadav, Anuj Kumar, Mamindlapally, Manideep, Budkuley, Amitalok J.   +2 more
openaire   +3 more sources

Wearable Kirigami‐Apertured Capacitive Sensors for Continuous Cardiac Volumetric Monitoring

Advanced Functional Materials, EarlyView.
A wearable kirigami‐apertured carbon nanotube‐paper composite (K‐CPC) capacitive sensor enables cardiac volumetric monitoring. The kirigami process creates a central aperture with cantilevered fibers that confine the electric field, enhancing both sensitivity and lateral resolution.
Yu‐Jen Cheng, Shawn Kim, Jonathan Avery, Younghoon Kwon, Jae‐Hyun Chung   +4 more
wiley   +1 more source

Polar Coding for the Wiretap Channel With Shared Key

IEEE Transactions on Information Forensics and Security, 2018
The wiretap channel with shared key (WTC-K) refers to the classic wiretap channel with a secret key of arbitrary rate shared between the transmitter and the legitimate receiver.
Haowei Wang, Xiaofeng Tao, Na Li, Zhu Han   +3 more
semanticscholar   +1 more source

Spin Dynamics in the van der Waals Ferromagnet CrTe2 Engineered by Niobium Doping

Advanced Functional Materials, EarlyView.
Spin‐dynamic magnetic properties of van der Waals (vdW) ferromagnet 1T‐CrTe2 are tuned via niobium (Nb) as Cr1‐xNbxTe2 (x = 0–0.2). Nb doping enables wide‐band tuning of the resonance frequency from 40 GHz down to the few‐GHz regime, accompanied by a moderate increase in the Gilbert damping from ∼0.066 to ∼0.14.
Dhan Raj Lawati, Prem Bahadur Karki, Jitender Kumar, Karishma Prasad, Mohamed A. Elekhtiar, Kai Huang, Bibek Tiwari, Suvechhya Lamichhane, Rupak Timalsina, Zane Hubble, Ayodimeji E. Aregbesola, John Watt, Sy‐Hwang Liou, Evgeny Y. Tsymbal, Jian Wang, Kapildeb Ambal, Abdelghani Laraoui   +16 more
wiley   +1 more source

Free-space optical wiretap channel and experimental secret key agreement in 7.8 km terrestrial link.

Optics Express, 2018
Secret key agreement using physical properties of a wireless channel is becoming a promising scheme to establish a secret key between two users, especially in short-distance radio frequency (RF) communications.
M. Fujiwara, Toshiyuki Ito, M. Kitamura, H. Endo, O. Tsuzuki, M. Toyoshima, H. Takenaka, Y. Takayama, R. Shimizu, M. Takeoka, R. Matsumoto, M. Sasaki   +11 more
semanticscholar   +1 more source

Secrecy Capacity of a Class of Erasure Wiretap Channels in WBAN

Sensors, 2018
In wireless body area networks (WBANs), the secrecy of personal health information is vulnerable to attacks due to the openness of wireless communication.
Bin Wang, Jun Deng, Yanjing Sun, Wangmei Guo, Guiguo Feng   +4 more
doaj   +1 more source

Security for adversarial wiretap channels

CoRR
We consider the wiretap channel, where the individual channel uses have memory or are influenced by an adversary. We analyze the explicit and computationally efficient construction of information-theoretically secure coding schemes which use the inverse of an extractor and an error-correcting code. These schemes are known to achieve secrecy capacity on
Esther Hänggi, Iyán Méndez Veiga, Ligong Wang 0002   +2 more
openaire   +2 more sources