Results 61 to 70 of about 4,918 (200)

Advanced Hybrid Techniques for Cyberattack Detection and Defense in IoT Networks

open access: yesSECURITY AND PRIVACY, Volume 8, Issue 2, March/April 2025.
ABSTRACT The Internet of Things (IoT) represents a vast network of devices connected to the Internet, making it easier for users to connect to modern technology. However, the complexity of these networks and the large volume of data pose significant challenges in protecting them from persistent cyberattacks, such as distributed denial‐of‐service (DDoS)
Zaed S. Mahdi   +2 more
wiley   +1 more source

Portable Radar for Noncontact Heart Rate Monitoring and Estrus Detection in Dairy Cows

open access: yesIEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
This study introduces a portable radar system for real‐time monitoring of respiratory and heart rates in dairy cows. It uses millimeter‐wave Frequency Modulated Continuous Wave (FMCW) radar to perform noncontact physiological sensing, reducing behavioral disturbance. The radar system's design prioritizes portability, cost‐effectiveness, and robustness,
Yingxiu Li   +7 more
wiley   +1 more source

A Multifrequency Seamless Dual-Link Handover Scheme Based on Beamforming for High-Speed Railway

open access: yesInternational Journal of Antennas and Propagation, 2023
This paper proposes a multifrequency seamless dual-link handover scheme based on beamforming for the high-speed railway (HSR) communication, i.e., when the train travels to the edge of overlapping area of the adjacent two cells, a gain beam is assigned ...
Suoping Li   +4 more
doaj   +1 more source

Wave Tracing: Generalizing The Path Integral To Wave Optics

open access: yesComputer Graphics Forum, EarlyView.
Abstract Modeling the wave nature of light and the propagation and diffraction of electromagnetic fields is crucial for the accurate simulation of many phenomena, yet wave simulations are significantly more computationally complex than classical ray‐based models.
Shlomi Steinberg, Matt Pharr
wiley   +1 more source

Hotspot Ranking Based Indoor Mapping and Mobility Analysis Using Crowdsourced Wi-Fi Signal

open access: yesIEEE Access, 2017
In this paper, we propose a new hotspot ranking-based indoor mapping and mobility analysis approach based on the sporadically collected crowdsourced Wi-Fi received signal strength (RSS) data. This approach aims to construct the indoor mapping, as well as
Mu Zhou   +3 more
doaj   +1 more source

The Power Gain Difference Method Analysis

open access: yesSensors, 2020
In this paper, we propose a new approach to passively locate the 3D position of a signal source. This novel technique, called the power gain difference (PGD), is based only on measuring the received signal strength (RSS) with multiple sensors deployed in
Jiří Veselý   +2 more
doaj   +1 more source

Sex‐Specific Atlantic Salmon Upstream Passage and Fallback at a Natural Cascade After Dam Removal

open access: yesFisheries Management and Ecology, EarlyView.
ABSTRACT In the Boquet River (NY, USA) a low‐head dam set above a ~200‐m bedrock cascade was removed in 2015. We used radio‐telemetry to assess landlocked Atlantic salmon passage at the remaining cascade (2020, 2022). Across years, 52% of males (13/25) attempted cascade passage whereas females made no discernable attempts (0/11).
Kurt C. Heim   +5 more
wiley   +1 more source

Re‐Engaging in Activities of Daily Living After Critical Illness: A Qualitative Review

open access: yesJournal of Clinical Nursing, EarlyView.
ABSTRACT Aim To explore the qualitative literature regarding the experiences of survivors of critical illness re‐engaging in activities of daily living. Design Qualitative systematic review. Methods Databases were searched with three broad categories of search terms: (1) critical illness, (2) activities of daily living, and (3) participant experiences.
Mitchell Williams   +4 more
wiley   +1 more source

Detecting Sparse Cointegration

open access: yesOxford Bulletin of Economics and Statistics, EarlyView.
ABSTRACT We propose a two‐step procedure for detecting sparse cointegration in high‐dimensional single‐equation models. First, we employ the adaptive lasso to identify the subset of integrated covariates driving the long‐run equilibrium relationship.
Jesús Gonzalo, Jean‐Yves Pitarakis
wiley   +1 more source

Implementasi Pembangkitan Secret Key Berbasis Received Signal Strength (RSS) untuk Sistem Komunikasi Bawah Air [PDF]

open access: yes, 2019
Underwater Acoustic Communication System (UACS) adalah teknologi komunikasi yang banyak digunakan di dunia kemaritiman, namun dewasa ini mulai dieksplorasi untuk kepentingan sistem komunikasi data dengan medium bawah air. Hal ini didorong kenyataan bahwa
Priambudi, Tyas Basuki
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