Results 51 to 60 of about 10,992,643 (300)

A Hybrid Offline/Online Modeling Based Tracking Control for Complex Hydraulic Driving Processes

open access: yesIEEE Access, 2019
The hydraulic actuators are widely used in industry for the fabrication of all sorts of products. Due to the complexity and strong nonlinearity, such as the time-varying and nonlinear deformation force and driving force as well as the nonlinear friction,
Xinjiang Lu, Yunxu Bai, Bin Fan, Hao Sui
doaj   +1 more source

Thermal Analysis of Herringbone Gears Based on Thermal Elastohydrodynamic Lubrication Considering Surface Roughness

open access: yesEnergies, 2021
To predict the temperature distribution of the tooth surface of a herringbone gear pair, a numerical method for the determination of frictional heat generation was proposed by establishing a thermal elastohydrodynamic lubrication (TEHL) model in the ...
Xiaozhou Hu   +3 more
doaj   +1 more source

Pediatric Idiopathic Multicentric Castleman Disease Is Often Severe But Responsive to Siltuximab

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Idiopathic multicentric Castleman disease (iMCD) is a potentially fatal immunologic disorder marked by widespread lymphadenopathy and inflammation. Siltuximab, an interleukin‐6 (IL‐6) inhibitor, is the only FDA‐approved treatment for adult patients with iMCD.
Bridget Austin   +17 more
wiley   +1 more source

Flexible head-following motion planning for scalable and bendable continuum robots

open access: yesBiomimetic Intelligence and Robotics
Continuum robots, which are characterized by high length-to-diameter ratios and flexible structures, show great potential for various applications in confined and irregular environments.
Te Li   +5 more
doaj   +1 more source

Construction of Confidence Intervals for Distributed Parameter Processes Under Noise

open access: yesIEEE Access, 2018
Constructing an interval model for nonlinear distributed parameter systems (DPSs) is challenging due to strong nonlinearity, spatiotemporal nature, and influence of noise.
Xinjiang Lu   +3 more
doaj   +1 more source

Investigation of Quadrate Fresnel Zone Plates Fabricated by Femtosecond Laser Direct Writing

open access: yesApplied Sciences, 2022
The circular Fresnel zone plate (FZP) has been extensively used in micro-optics due to its outstanding focusing performance. Despite that, the curved edge of the circular zone has drawbacks limiting its use in terahertz imaging, array generator, and ...
Xiaoyan Sun   +3 more
doaj   +1 more source

The Impact of the COVID‐19 Pandemic on Childhood Cancer Survival: A Population‐Based Assessment of Survival Patterns Between 2015 and 2023 in Germany

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Numerous international studies have reported declines in new cancer diagnoses, delayed diagnoses and disruptions in cancer treatment following the implementation of COVID‐19 pandemic public health measures, raising concerns that these effects may ultimately contribute to increased cancer mortality.
Friederike Erdmann   +8 more
wiley   +1 more source

Coexistence of entanglement-based quantum channels with DWDM classical channels over hollow core fibre in a four node quantum communication network

open access: yesnpj Quantum Information
We experimentally demonstrate the coexistence of three entanglement-based quantum channels with carrier-grade classical optical channels over 11.5 km hollow core nested antiresonant nodeless fibre, in a four user quantum network.
Marcus J. Clark   +12 more
doaj   +1 more source

Modeling and Optimization of the Blade Structural Parameters for a Turbomolecular Pump

open access: yesMachines, 2023
The development of high-performance mass spectrometer and vacuum coating technology has placed higher demand on the vacuum level of turbomolecular pumps (TMPs), which are required to possess a greater compression ratio and faster pumping speed.
Zhi Chen   +3 more
doaj   +1 more source

The Performance of School Assignment Mechanisms in Practice [PDF]

open access: yesJournal of Political Economy, 2015
We use a unique combination of register and survey data from Amsterdam to investigate the performance of school assignment mechanisms in prac-tice. We find that deferred acceptance (DA) results in higher mean welfare than the adaptive Boston mechanism. This is due to students making strategic mistakes. The welfare gain of a switch from actual Boston to
de Haan, Monique   +3 more
openaire   +5 more sources

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