Results 21 to 30 of about 63,843 (266)

Clock synchronization based on pulse with propagation delay eliminated in wireless sensor networks

open access: yesIET Communications, 2023
Clock synchronization is indispensable for numerous applications of wireless sensor networks (WSNs). When no common reference clock is available, the nodes must employ distributed synchronization techniques. This paper proposes, a distributed pulse‐based
Wei Liu   +3 more
doaj   +1 more source

Rectification scheme of electromagnetic compatibility radiation emission for mine-used personnel location system

open access: yesGong-kuang zidonghua, 2017
According to requirement of electromagnetic compatibility in European Norm EN 301 489-1, mine-used personnel location system must pass radiation emission test when it is applied in foreign countries.
WANG Shuqiang
doaj   +1 more source

Characteristics analysis of compact cesium atomic clock with magnetic state selection

open access: yesFrontiers in Physics, 2022
This paper introduces a compact magnetic state-selection cesium atomic clock called LIP Cs-3000 and analyses its characteristics. The test results reveal that the ranges of the line width, peak-to-valley ratio and signal-to-noise ratio of Ramsey pattern ...
Jiang Chen   +12 more
doaj   +1 more source

Clock signals in calculators [PDF]

open access: yesJournal of Chemical Education, 1977
The manifestation of pulsed sequential counts appearing at relatively long intervals, activated by peculiar accessing sequences.
Robert George Landolt   +3 more
openaire   +1 more source

Research on high-speed digital optical signal jitter measurement technology based on clock recovery algorithm using eye diagram opening area

open access: yesHeliyon
With the rapid development of information technology, high-speed digital optical signal transmission technology has become the core of modern communication networks. However, the increase in transmission rates brings challenges such as noise, distortion,
Suping Liu
doaj   +1 more source

Health‐Related Social Needs in Children With Sickle Cell Disease Are Associated With Worse Health‐Related Quality of Life

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell disease (SCD) face multiple acute and chronic medical complications that may impact their quality of life as reported by patients themselves. Health‐related social needs (HRSNs), such as food and housing insecurity, are common in people with SCD, but the association between HRSNs and patient‐reported ...
Sarah J. Marks   +5 more
wiley   +1 more source

Research on mine personnel positioning method based on time range

open access: yesGong-kuang zidonghua, 2018
Four kinds of mine personnel positioning methods based on time range were researched, namely TOA, TWR, SDS-TWR and TDOA positioning methods, they are less influenced by roadway environment and suitable for mine personnel precise positioning.TOA ...
SUN Zhexing
doaj   +1 more source

Genomic Diversity and Clinical Variability in Pediatric Primary Cutaneous Anaplastic Large Cell Lymphoma: A Case Series

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Primary cutaneous anaplastic large cell lymphoma (pcALCL) is a rare pediatric CD30‐positive T‐cell lymphoproliferative disorder with an excellent prognosis, but its genomic drivers are poorly defined. We report three children with skin‐limited disease demonstrating striking molecular heterogeneity, including NPM::ALK, NUP214::FRK, and a novel ...
Shoshana Greenberger   +7 more
wiley   +1 more source

Experimental demonstration of sub-100 picometer level signal extraction with time-delay interferometry technique

open access: yesResults in Physics
In this work, we have built an experimental setup to simulate the clock noise transmission between two spacecrafts, and further demonstrated the extraction of picometer level signal drowned by the large laser frequency noise and clock noise with the data
Mingyang Xu   +8 more
doaj   +1 more source

Characterization of the Ability of Low-Cost GNSS Receiver to Detect Spoofing Using Clock Bias

open access: yesSensors, 2023
The aim of this paper was to propose a method to characterize the ability of a GNSS user to detect a spoofing attack from the behavior of the clock bias.
Victor Truong   +3 more
doaj   +1 more source

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