Results 91 to 100 of about 277,391 (291)

Bonding Lexan and sapphire to form high-pressure, flame-resistant window [PDF]

open access: yes
Flammable materials have been studied in normal gravity and microgravity for many years. Photography plays a major role in the study of the combustion process giving a permanent visual record that can be analyzed.
Richardson, William R., Walker, Ernie D.
core   +1 more source

Pengaruh Penambahan LPG (Liquified Petroleum Gas) Pada Proses Pembakaran Premixed Uap Minyak Jarak Pagar (Jatropha Curcas L.) Terhadap Warna Dan Temperatur Api [PDF]

open access: yes, 2016
This study was conducted to determine the effect of the addition of Liquefied Petroleum Gas (LPG) to the premixed combustion characteristics of Jatropha oil vapor. Combustion characteristics studied were the color of fire and flame temperature.
Riwu, D. B. (Defmit)
core   +1 more source

Optimizing wavelet neural networks using modified cuckoo search for multi-step ahead chaotic time series prediction [PDF]

open access: yes, 2019
Determining the optimal number of hidden nodes and their proper initial locations are essentially crucial before the wavelet neural networks (WNNs) start their learning process.
Huda A. Majid   +6 more
core   +1 more source

Unravelling the Secret of Sulfur Confinement and High Sulfur Utilization in Hybrid Sulfur‐Carbons

open access: yesAdvanced Materials, EarlyView.
Thermal condensation of inverse vulcanized sulfur‐carbon hybrids enables a bottom‐up sulfur confinement strategy, in which a protective carbon phase is progressively constructed around sulfur species. The resulting carbon nanodomains covalently tether sulfur chains and stabilize radical intermediates. This integrated architecture effectively suppresses
Tim Horner   +9 more
wiley   +1 more source

Rainbow Photonic Crystals: Self‐Assembly of Carbohydrate Bottlebrushes Block Copolymers

open access: yesAdvanced Materials, EarlyView.
Full‐color reflective 1D photonic crystals, capable of a tunable, responsive, and reversible color with high repeatability, are created from the self‐assembly of carbohydrate‐based brush block copolymers (BR01‐04). Abstract Tunable and responsive photonic crystal systems are the subject of great research interest owing to their ability to actively ...
Hong Li   +6 more
wiley   +1 more source

Experimental study of coupling characteristics between flame dynamics and CO emissions using wavelength modulation spectroscopy

open access: yesApplications in Energy and Combustion Science
The coupled characteristics of flame dynamics and emissions in energy systems are critical for understanding combustion instability mechanisms and implementing effective emission control, necessitating high temporal-resolution optical diagnostic methods ...
Weitian Wang   +7 more
doaj   +1 more source

Operando X‐ray Spectroscopy Study of Pd and Pd–Au Laterally Condensed Catalysts during Selective Acetylene Hydrogenation: The Role of Carbon

open access: yesAdvanced Materials, EarlyView.
The selective hydrogenation of acetylene over laterally condensed Pd and Pd–Au catalysts (LCCs) was investigated using operando X‐ray absorption and photoelectron spectroscopy in combination with density functional theory. Pd‐LCCs were found to incorporate significantly more carbon into the metal lattice than Pd–Au LCCs, where the carbon uptake governs
Eylül Öztuna   +22 more
wiley   +1 more source

Effect of Airflow Temperature on the Formation of Initial Flame Kernel and the Propagation Characteristics of Flame

open access: yesInternational Journal of Aerospace Engineering, 2018
Using liquid RP-3 aviation kerosene as the fuel to study, the effect of airflow temperature on the formation of initial flame kernel during the ignition of spray combustion and on the propagation characteristics of flame was investigated.
Jianzhong Li, Jian Chen, Li Yuan, Ge Hu
doaj   +1 more source

Engineering Bilayer Tandem Catalysts on Si‐Based Photocathodes for High‐performance CO2 Reduction to Produce Methane

open access: yesAdvanced Materials, EarlyView.
A Cu/Ag‐Cu bilayer tandem catalyst is designed for a pyramid‐structured p‐Si photocathode, creating multiple and functionally distinct interfaces tailored to specific reaction steps and intermediate stabilization. This Cu/Ag‐Cu‐decorated p‐Si photocathode exhibits both high photocurrent and good selectivity for photoelectrochemical CO2 reduction to CH4.
Hao Wu   +14 more
wiley   +1 more source

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