Results 61 to 70 of about 4,022,654 (330)

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Linear, nonlinear dynamics, and sensitivity analysis of a vibratory ring gyroscope

open access: yesTheoretical and Applied Mechanics Letters, 2018
: The linear and nonlinear dynamic responses of a vibratory ring gyroscope are investigated in this study focusing on the response mechanism of such a vibratory gyroscope.
Dong-Dong Liang   +4 more
doaj   +1 more source

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

open access: yesFEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young   +7 more
wiley   +1 more source

Post-Buckling Spring Vibration Isolator Using Silicone Gel Column: A Theoretical and Experimental Study

open access: yesApplied Sciences, 2021
Based on the design of a post-buckling silicone gel column (SGC), a novel type of low-frequency vibration isolator is presented, and the vibration isolation performance of this isolator is studied by combining theoretical analysis and experimental ...
Ji-Hou Yang   +3 more
doaj   +1 more source

Device calibrates vibration transducer at amplitudes up to 20 g [PDF]

open access: yes, 1964
A piezoelectric transducer provides accurate calibration of vibration amplitudes to 20 g. The calibration system uses an electromagnetically driven resonant beam to generate mechanical vibrations at a fixed ...
Greenwood, T. L.
core   +1 more source

The Physician‐Scientist Pipeline for Pediatric Rheumatology – Current Landscape and Future Perspectives.

open access: yesArthritis Care &Research, Accepted Article.
Over the past 50 years, the science of pediatric rheumatology has grown exponentially due to an expansion in the understanding of complex rheumatic conditions and a surge in novel targeted therapeutics. Physician‐scientists in the field of pediatric rheumatology have played major roles in these advancements that have improved the care of children ...
Ekemini A. Ogbu   +2 more
wiley   +1 more source

Use of the Adjoint Method for Controlling the Mechanical Vibrations of Nonlinear Systems

open access: yes, 2018
In this work, the analytical derivation and the computer implementation of the adjoint method are described. The adjoint method can be effectively used for solving the optimal control problem associated with a large class of nonlinear mechanical systems.
C. Pappalardo, D. Guida
semanticscholar   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Nonlinear Dynamic Analysis of Macrofiber Composites Laminated Shells

open access: yesAdvances in Materials Science and Engineering, 2017
This work presents the nonlinear dynamical analysis of a multilayer d31 piezoelectric macrofiber composite (MFC) laminated shell. The effects of transverse excitations and piezoelectric properties on the dynamic stability of the structure are studied ...
Xiangying Guo   +4 more
doaj   +1 more source

Sleep Disorder Prevalence among Brazilian Children and Adolescents with Down Syndrome: An Observational Study

open access: yesApplied Sciences, 2023
Background: Down syndrome (DS) is the most common chromosomal disorder and is related to congenital heart disease, sleep disorders and obesity. Sleep problems are common in DS children, including obstructive sleep apnea.
Luiza Torres-Nunes   +5 more
doaj   +1 more source

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