Results 91 to 100 of about 16,000,085 (252)

Turbulent Premixed Flame Kernel Growth During The Early Stages Using Direct Numerical Simulation [PDF]

, 2008
In this thesis Direct Numerical Simulation (DNS) is used to investigate the development of turbulent premixed flame kernels during the early stages of growth typical of the period following spark ignition.
Dunstan, T. D.
core   +3 more sources

Amplitude Death in Extended Time-Delay Coupled Oscillator Networks

IEEE Access
The present paper applies the concept of extended delayed feedback control, a commonly used method for controlling chaos, to a quenching phenomenon (i.e., amplitude death) in time-delay coupled oscillator networks.
Shinsuke Mizukami, Keiji Konishi, Koki Yoshida, Yoshiki Sugitani, Naoyuki Hara   +4 more
doaj   +1 more source

Elastic Properties and Thermal Expansion Behavior of a Polycrystalline VMnFeCoNi High‐Entropy Alloy

Advanced Engineering Materials, EarlyView.
The high‐entropy alloy (HEA) V20Mn20Fe20Co20Ni20 (composition in at.%) can be made single‐phase face‐centered cubic (FCC) when annealed above 1338 K followed by water quenching. In this state, the alloy exhibits the greatest strength‐ductility combination of any quinary single‐phase FCC HEA.
Guillaume Laplanche, Marie Münchhalfen, Aditya Srinivasan Tirunilai, Jürgen Schreuer   +3 more
wiley   +1 more source

Bifunctional Passivation Strategy to Achieve Stable CsPbBr₃ Nanocrystals with Drastically Reduced Thermal-Quenching

, 2020
The thermal quenching behavior (temperature-dependent luminescence) has severely hindered the practical applications of CsPbX3 nanocrystals. Here, we find that a simple surface treatment using ammonium hexafluorosilicate (AHFS, (NH4)2SiF6) can ...
Weilin Zheng (7513565), Bo Wang (86769), Mingming Liu (106361), Qi Zhang (28502), Zhichun Li (1516465), Liang Li (46069), Long Kong (1516462)   +6 more
core   +1 more source

Fluorescence-based methods to study rapid dynamics and conformational flexibility in peptides [PDF]

, 2004
Intramolecular collision of polypeptides is the primary step in protein folding, the dynamics of which is of importance for understanding this fascinating topic.
Huang, Fang
core   +1 more source

Distinct Microstructural Characteristic Lengths Defining Notch Fatigue Crack Initiation and Propagation, and Defect Tolerance in Advanced Steels

Advanced Engineering Materials, EarlyView.
Schematic representation of modes of microcrack nucleation, growth and temporary arrestment at different boundaries, with the criteria for crack propagation in three scenarios: (1) large notch, (2) defect/small sharp notch, and (3) long crack. This work revisits and integrates results on the fatigue behavior of advanced bainitic steels (in particular ...
Lucia Morales‐Rivas
wiley   +1 more source

Numerical Study of Quenching Distances for Side-Wall Quenching Using Detailed Diffusion and Chemistry [PDF]

The numerical investigation of quenching distances in laminar flows is mainly concerned with two setups: head-on quenching (HOQ) and side-wall quenching (SWQ).
Dreizler, Andreas, Hasse, Christian, Suntz, Rainer, Zhang, Feichi, Zirwes, Thorsten, Kosaka, Hidemasa, Stagni, Alessandro, Bockhorn, Henning, Häber, Thomas, Steinhausen, Matthias, Trimis, Dimosthenis   +10 more
core   +1 more source

Uniform Amorphization of Crystalline Silicon Surfaces Enabled by Deep Ultraviolet Femtosecond Laser Pulses

Advanced Engineering Materials, EarlyView.
Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali, Magali Gregoire, Matys Guyard, Tatiana Itina, David Grojo, Pol Sopeña   +5 more
wiley   +1 more source

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

Advanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen, Haosen Miao, Weiying Hong, Matteo Palma   +3 more
wiley   +1 more source

Experimental and Numerical Study of Film Boiling Around a Small Nickel Sphere

Fluids
This work—mixing an original experimental approach, as well as numerical simulations—proposes to study film boiling modes around a small nickel sphere. While dealing with a simple looking phenomenon that is found in many industrial processes and has been
Charles Brissot, Léa Cailly-Brandstäter, Romain Castellani, Elie Hachem, Rudy Valette   +4 more
doaj   +1 more source