Results 31 to 40 of about 3,049,647 (303)

New procedure for design of self-adaptive control systems [PDF]

open access: yes, 1970
Adaptive control system compensates for changes in the dynamic characteristics of linear controlled elements.
Hofmann, L. G.
core   +1 more source

Why and When Are Evidence‐Based Interventions Adopted in Paediatric Supportive Care? A Qualitative Exploration of the Determinants of Photobiomodulation Implementation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Oral mucositis is a common and debilitating side effect of childhood cancer and stem cell transplant treatments. It affects the quality of life of children and young people (CYP) and places a strain on services. Photobiomodulation is recommended for oral mucositis prevention in international guidance but is poorly implemented in UK ...
Claudia Heggie   +4 more
wiley   +1 more source

Reducing Influence of Hardware of Communication Station on Characteristics of Asymmetric Biconical Dipole Using Magneto-Dielectric Substrate on Finite-Size Metal Screen

open access: yesEast European Journal of Physics
Based on the approximate analytical solution previously obtained by the authors to the problem of excitation (radiation, scattering) of electromagnetic waves by an asymmetric biconical dipole with distributed surface impedance (constant and variable) in ...
Mikhail V. Nesterenko   +3 more
doaj   +1 more source

On Decomposition-Based Surrogate-Assisted Optimization of Leaky Wave Antenna Input Characteristics for Beam Scanning Applications

open access: yesIEEE Access, 2021
Recent years have witnessed a growing interest in reconfigurable antenna systems. Travelling wave antennas (TWAs) and leaky wave antennas (LWAs) are representative examples of structures featuring a great level of flexibility (e.g., straightforward ...
Mehmet Ali Belen   +4 more
doaj   +1 more source

Dynamical Quantum Memories [PDF]

open access: yes, 2008
We propose a dynamical approach to quantum memories using an oscillator-cavity model. This overcomes the known difficulties of achieving high quantum input-output fidelity with storage times long compared to the input signal duration.
Cviklinski, J.   +4 more
core   +2 more sources

Clinical Insights Into Hypercalcemia of Malignancy in Childhood

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley   +1 more source

Straw input can parallelly influence the bacterial and chemical characteristics of maize rhizosphere

open access: yesEnvironmental Pollutants & Bioavailability, 2020
The effects of straw input, including three strategies: chopped straw, straw-derived compost and biochar, on bacterial communities and chemical composition in maize rhizosphere were investigated according to a three-year field experiment.
Rong Li, Jun Liu, Jiani Li, Caixia Sun
doaj   +1 more source

Preferences of Pediatric Patients and Their Caregivers for Chemotherapy‐Induced Nausea and Vomiting Control Endpoints: A Mixed Methods Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Although not always achieved, complete chemotherapy‐induced nausea and vomiting (CINV) control is the conventional goal of CINV prophylaxis. In this two‐center, mixed‐methods study, we sought to understand the preferences of adolescent patients and family caregivers for CINV control endpoints.
Haley Newman   +8 more
wiley   +1 more source

Systems physiology of the baroreflex during orthostatic stress: from animals to humans

open access: yesFrontiers in Physiology, 2014
The baroreflex is a key mechanism involved in the control of arterial pressure (AP) during orthostasis in humans. However, the baroreflex is a closed-loop feedback system, from baroreceptor pressure input to systemic AP, and therefore requires open-loop ...
Atsunori eKamiya   +2 more
doaj   +1 more source

Bidirectional torque filter eliminates backlash [PDF]

open access: yes, 1965
Two elastic springs connecting a hub and two spur gears absorb bidirectional step torque differentials and provide antibacklash characteristics between input and output shafts.
Baker, R., Veilette, L., Williams, S.
core   +1 more source

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