Results 1 to 10 of about 373,341 (186)

Dwell time and bloodstream infection incidence of umbilical venous catheterization in China [PDF]

open access: yesPediatric Investigation, 2023
Importance Central line‐associated bloodstream infection (CLABSI) is one of the most serious complications of central venous access devices. Reducing the risk of CLABSI is of utmost significance in efforts to improve neonatal mortality rates and enhance ...
Xu Zheng   +10 more
doaj   +2 more sources

A Method for Optimizing the Dwell Time of Optical Components in Magnetorheological Finishing Based on Particle Swarm Optimization [PDF]

open access: yesMicromachines, 2023
In this paper, a dwell time optimization method based on the particle swarm optimization algorithm is proposed according to the pulse iteration principle in order to achieve high-precision magnetorheological finishing of optical components.
Bo Gao   +4 more
doaj   +2 more sources

Differences in the Dwell Time of Peripherally Inserted Central Catheters between Patients with Catheter Colonization and Those Developing Central Line-Associated Bloodstream Infection: A Single Centre Retrospective Cohort Study [PDF]

open access: yesAntibiotics
Substantial knowledge gaps exist concerning the varying durations of peripherally inserted central catheter (PICC) placements that lead to either central line-associated bloodstream infection (CLABSI) or catheter colonization.
Vassiliki C. Pitiriga   +4 more
doaj   +2 more sources

The fracture behavior transitions in cold dwell fatigue of Ti-6Al-4V [PDF]

open access: yesMATEC Web of Conferences, 2020
Ti-6Al-4V forged materials which had fine grain size and commercial billet which had moderate grain size and micro texture were prepared. Cold dwell fatigue tests were conducted using both materials, and dwell time condition was up to 1800s.
Ozaki Tomomichi   +3 more
doaj   +1 more source

The rupture life prediction in cold dwell fatigue of Ti-6Al-4V based on the creep deformation [PDF]

open access: yesMATEC Web of Conferences, 2020
Titanium a lloys have been found that the fatigue strength of Ti alloys decreases due to cold dwell fatigue (CDF) at room temperature. Ti and Ti alloys generate creep deformation at room temperature (T/Tm = 0.15).
Ota Yutaro   +2 more
doaj   +1 more source

Robust Stability of Switched-Interval Positive Linear Systems with All Modes Unstable Using the Φ-Dependent Dwell Time Technique

open access: yesAxioms, 2023
In this study, some stability and robust stability conditions for switched positive linear systems in which all subsystems are unstable in continuous time and discrete time were obtained using the Φ-dependent dwell time technique and the discretized co ...
Qiang Yu, Xiujuan Jiang
doaj   +1 more source

Impact of a lower demand during the COVID-19 pandemic on the frequency of dwell time delays

open access: yesTransportation Research Interdisciplinary Perspectives, 2023
This study investigates the relationship between changes in the frequency of dwell time delays and passenger flow characteristics and the frequency of railway service during the COVID-19 pandemic.
Ruben A. Kuipers, Carl-William Palmqvist
doaj   +1 more source

Dwell Time Allocation Algorithm for Multiple Target Tracking in LPI Radar Network Based on Cooperative Game

open access: yesSensors, 2020
To solve the problem of dwell time management for multiple target tracking in Low Probability of Intercept (LPI) radar network, a Nash bargaining solution (NBS) dwell time allocation algorithm based on cooperative game theory is proposed.
Chenyan Xue, Ling Wang, Daiyin Zhu
doaj   +1 more source

Effect of Rotational Speed, and Dwell Time on the Mechanical Properties and Microstructure of Dissimilar AA5754 and AA7075-T651 Aluminum Sheet Alloys by Friction Stir Spot Welding

open access: yesMedžiagotyra, 2021
In the current study, the effects of dwell time and rotation speed on the mechanical properties and microstructure of friction stir spot welded joints of dissimilar aluminum sheet alloys were investigated.
Tauqir NASIR   +2 more
doaj   +1 more source

Feasibility of a 64-Channel Scintillation Fiber System for Real-Time Monitoring of Dwell Positions and Dwell Times of High-Dose-Rate Brachytherapy Sources

open access: yesIEEE Access, 2022
A 64-channel scintillation fiber-based real-time monitoring system (SFRMS) was developed and evaluated to verify the dwell position and dwell time of the radioactive source in high-dose-rate brachytherapy.
Na Hye Kwon   +4 more
doaj   +1 more source

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