Results 11 to 20 of about 8,196,711 (316)

Improper High‐Tc Perovskite Ferroelectric with Dielectric Bistability Enables Broadband Ultraviolet‐to‐Infrared Photopyroelectric Effects

open access: yesAdvanced Science, 2023
The photopyroelectric effect in ferroelectrics has shown great potential for application in infrared detection and imaging. One particular subclass is broadband with dielectric bistability, which allows for large pyroelectric figures‐of‐merit (FOMs ...
Lina Hua   +8 more
doaj   +1 more source

The Structure That Structures Us

open access: yesUrban Planning, 2023
Christopher Alexander explored the world of built structures. He longed for buildings and spaces that touched and triggered our own psychological and spiritual structure. From his examples of spaces we experience as alive he distilled his Fifteen Properties: aspects and qualities in buildings that quicken us.
openaire   +3 more sources

Ultrahigh-density spin-polarized hydrogen isotopes from the photodissociation of hydrogen halides: new applications for laser-ion acceleration, magnetometry, and polarized nuclear fusion

open access: yesLight: Science & Applications, 2021
Spin-polarized hydrogen: production by photodissociation A laser-based scheme to produce spin-polarized hydrogen (SPH) at much higher densities than conventional methods could create new opportunities in physics.
Alexandros K. Spiliotis   +8 more
doaj   +1 more source

Structure of structure formation theories [PDF]

open access: yesPhysical Review D, 1999
We study the general structure of models for structure formation, with applications to the reverse engineering of the model from observations. Through a careful accounting of the degrees of freedom in covariant gravitational instability theory, we show that the evolution of structure is completely specified by the stress history of the dark sector. The
Daniel J. Eisenstein, Wayne Hu
openaire   +3 more sources

A Modified Strain-Rate-Dependent Spring-Mass Model for Response Prediction of Composite Laminates Subjected to Low-Velocity Impact

open access: yesInternational Journal of Aerospace Engineering, 2023
A modified strain-rate dependent (SRD) spring-mass model was first developed to capture the strain rate effect on response prediction of fiber-reinforced polymer (FRP) laminates subjected to low-velocity impact (LVI).
Qiao Zhu, Zhefeng Yu
doaj   +1 more source

Generation of narrowband, high-intensity, carrier-envelope phase-stable pulses tunable between 4 and 18 THz [PDF]

open access: yesEPJ Web of Conferences, 2019
We demonstrate the generation of narrowband (
Liu Biaolong   +5 more
doaj   +1 more source

On how the mechanochemical and co-precipitation synthesis method changes the sensitivity and operating range of the Ba2Mg1-xEuxWO6 optical thermometer

open access: yesScientific Reports, 2021
The suitability of Ba2MgWO6 (BMW) double perovskite doped with Eu3+ for the construction of an optical thermometer was tested. It has been shown that by controlling the conditions of BMW synthesis, the sensitivity of the optical thermometer and the ...
Quan T. H. Vu   +5 more
doaj   +1 more source

Tau Structures [PDF]

open access: yesFrontiers in Aging Neuroscience, 2016
Tau is a microtubule-associated protein that plays an important role in axonal stabilization, neuronal development, and neuronal polarity. In this review, we focus on the primary, secondary, tertiary, and quaternary tau structures. We describe the structure of tau from its specific residues until its conformation in dimers, oligomers, and larger ...
Jesus Avila   +9 more
openaire   +5 more sources

Feasibility study on pre or postoperative accelerated radiotherapy (POP-ART) in breast cancer patients

open access: yesPilot and Feasibility Studies, 2020
Background In early-stage breast cancer, the cornerstone of treatment is surgery. After breast-conserving surgery, adjuvant radiotherapy has shown to improve locoregional control and overall survival rates.
Hans Van Hulle   +13 more
doaj   +1 more source

Experimental Research on Damping Effect of Double-Layer Tuned Mass Damper for High-Rise Structure

open access: yesShock and Vibration, 2021
A double-layer tuned mass damper (DTMD) has advantages of wide damping frequency band and strong robustness. At present, there is a lack of seismic design methods for high-rise structures based on DTMDs.
Botan Shen   +6 more
doaj   +1 more source

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