Results 71 to 80 of about 968,099 (256)

Theoretical analysis of hard x-ray generation by nonperturbative interaction of ultrashort light pulses with a metal

open access: yesStructural Dynamics, 2015
The interaction of intense femtosecond pulses with metals allows for generating ultrashort hard x-rays. In contrast to plasma theories, tunneling from the target into vacuum is introduced as electron generation step, followed by vacuum acceleration in ...
Jannick Weisshaupt   +4 more
doaj   +1 more source

Sunscreens: Time to think beyond UV rays

open access: yesPigment International, 2018
It has been known to us that solar radiation contributes to photoaging. Until recently, it was thought to be due to ultraviolet rays alone. However, a growing number of evidence confirms that visible and infrared (IR) rays also contribute to extrinsic ...
Chitralekha Keisham   +2 more
doaj   +1 more source

Preparation, purification and characterization of aminopropyl-functionalized silica sol [PDF]

open access: yes, 2013
A new, simple and “green” method was developed for the surface modification of 20 nm diameter Stöber silica particles with 3-aminopropyl(diethoxy)methylsilane in ethanol. The bulk polycondensation of the reagent was inhibited and the stability of the sol
Nagy Naszályi, Lívia   +9 more
core   +1 more source

Emerging Post‐CMOS Hardware Neurons for Brain‐Inspired Computing: Devices, Circuits, and System Integration

open access: yesAdvanced Functional Materials, EarlyView.
The physical realization of artificial neurons is a critical challenge for energy‐efficient neuromorphic computing. This review presents a comprehensive analysis of the evolution of artificial neuron implementations from conventional CMOS to emerging post‐CMOS technologies.
Kannan Udaya Mohanan   +4 more
wiley   +1 more source

Advancing SafeWax, A Bio‐Inspired Superhydrophobic Coating, Toward Sustainable and Climate‐Resilient Crop Protection

open access: yesAdvanced Functional Materials, EarlyView.
This study advances SafeWax, a bio‐inspired, fatty‐acids‐based superhydrophobic coating, by identifying an agriculturally compliant solvent and revealing how solvent‐controlled Fatty acid crystallization governs the coating's microscopic structure and performance.
Niv Ben‐Arie   +13 more
wiley   +1 more source

Double-periodic pulsations simultaneously detected in mid-infrared and hard X-ray emissions during an X1.5 flare

open access: yesAstronomy & Astrophysics
Context. Quasi-periodic pulsations (QPPs) have been observed in a broad electromagnetic spectrum, encompassing radio, ultraviolet, white light, X-rays, and γ-rays. Yet, flare-associated QPPs remain rarely detected in mid-infrared emission. Aims.
Li Dong   +3 more
doaj   +1 more source

Measurement of Heat Flux on Combustion Chanber Wall by Infrared Rays (Examination of Infrared Rays Observation Window) [PDF]

open access: yes
It is important to measure the temperature on the combustion chamber wall surface of a spark ignition engine because of improvement for thermal efficiency in the engine.Temperature on the engine combustion chamber wall surface is usually measured by the ...
濱田, 真吾   +23 more
core  

X-Rays and their Biological Effects [PDF]

open access: yes, 2015
X-Rays were discovered by the celebrated Bavarian physicist Wilhelm Rontgen in November, 1895. During the few years following the discovery there was considerable speculation as to the nature of the rays, but an intensive study of their main physical ...
Love, Wm. H.
core  

Kinetics‐Controlled Architecture of Binder‐Free Organic Electrodes for Enhanced Ion Transport

open access: yesAdvanced Functional Materials, EarlyView.
Pulse reverse electrodeposition controls nucleation and growth to create hierarchically porous Py‐derived oligomeric electrodes with enhanced ionic accessibility and reduced transport resistance. The resulting binder‐free architectures translate these transport advantages into practical sodium‐storage functionality.
Satendra Kumar   +1 more
wiley   +1 more source

Quantitative Absorption Tomography Using Polychromatic X-rays

open access: yes, 2019
Submission note: A thesis submitted in total fulfilment of the requirements for the degree of Doctor of Philosophy to the Department of Chemistry and Physics, La Trobe Molecular Sciences School, College of Science, Health and Engineering, La Trobe ...
Eyou, Aileen Yowaresh Eyou (14373579)   +1 more
core   +2 more sources

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