Results 61 to 70 of about 9,950,957 (390)

Wavelength Tunable Pulsed Lasers Enabled by a Versatile Metafiber Functioning as Both Saturable Absorber and Filter

Advanced Science, EarlyView.
Schematic diagram of wavelength‐tunable pulsed laser based on metafiber‐FP (Fabry‐Perot). The alcohol solution is filled inside the FP cavity to simultaneously form a spectral filter and a saturable absorber. By adjusting the refractive index value and temperature inside the cavity, the tunable filtering effect is introduced to realize wavelength ...
Bo Fu, Chenxi Zhang, Zhouqi Zhang, Zuxi Ouyang, Gang Wang, Xiuhan Jing, Weilin Chen, Lei Zhang, Min Qiu   +8 more
wiley   +1 more source

The Influence of External Flow Field on the Flow Separation of Overexpanded Single-Expansion Ramp Nozzle

Aerospace, 2023
Flow separation and transitions of separation patterns are common phenomena of nozzles working with a wide Mach range. The maximum thrust method is applied to design the single-expansion ramp nozzle (SERN) for specific operating conditions. The nozzle is
Yang Yu, Yuepeng Mao, Tao Yu, Yalin Yang, Shulin Xu, Sijia Liang   +5 more
doaj   +1 more source

Supercontinuum Generation in Soft Glass Photonic Crystal Fibers Developed Based on 3D Printed Preforms

Advanced Science, EarlyView.
This research investigates whether modern 3D glass printing can be used to develop advanced photonic crystal fibers suitable for supercontinuum generation. The team designs and fabricates a lead‐borate glass fiber with high nonlinearity, achieving an octave‐spanning spectrum in the mid‐infrared range.
Pawel Wienclaw, Przemyslaw Golebiewski, Grzegorz Stepniewski, Bartosz Paluba, Pawel Socha, Adam Filipkowski, Dariusz Pysz, Wenzhong Liu, Andrzej Burgs, Rafal Kasztelanic, Ryszard Buczynski   +10 more
wiley   +1 more source

Computational Study of Shocked V-Shaped N₂/SF₆ Interface across Varying Mach Numbers

Axioms
The Mach number effect on the Richtmyer–Meshkov instability (RMI) evolution of the shocked V-shaped N2/SF6 interface is numerically studied in this research. Four distinct Mach numbers are taken into consideration for this purpose: Ms=1.12,1.22,1.42, and
Salman Saud Alsaeed, Satyvir Singh
doaj   +1 more source

Food‐Activated Microneedle Sensor for Real‐Time, Colorimetric Spoilage Monitoring of Pre‐Packaged Food

Advanced Science, EarlyView.
A microneedle spoilage sensor for packaged food products is presented. The sensor is composed entirely of food‐derived agents, integrated together using a novel material processing approach. This resultant platform nondestructively reports spoilage state in real‐time through a colorimetric output.
Shadman Khan, Akansha Prasad, Mahum Javed, Roderick MacLachlan, Carlos D. M. Filipe, Tohid F. Didar   +5 more
wiley   +1 more source

Thermal‐Stable and High‐Performance Organic Nonlinear Optical Chromophores for Advanced Electro‐Optic Modulators

Advanced Science, EarlyView.
To address the challenge of high electro‐optic (EO) activity and thermal stability, four chromophores (BHG1–BHG4) are designed. These incorporate steric hindrance groups into the aniline donor, significantly raising their glass transition temperatures and enhancing alignment stability. The neat BHG2 film achieves an exceptional EO coefficient of 304 pm 
Changqing Ge, Fuyang Huo, Jiangyi Liu, Xiuyou Han, Zhihua Li, Zhuo Chen, Abdul Rahman, Ruonan Li, Pengwei Li, Shuhui Bo   +9 more
wiley   +1 more source

Preliminary results for the study of the godunov scheme applied to the linear wave equation with porosity at low mach number

ESAIM: Proceedings and Surveys, 2015
We introduce continuous tools to study the low Mach number behavior of the Godunov scheme applied to the linear wave equation with porosity on cartesian meshes.
Dellacherie Stéphane, Jung Jonathan, Omnes Pascal   +2 more
doaj   +1 more source

Measuring the Alfvenic Nature of the Interstellar Medium: Velocity Anisotropy Revisited

, 2014
The dynamics of the interstellar medium (ISM) are strongly affected by turbulence, which shows increased anisotropy in the presence of a magnetic field. We expand upon the Esquivel & Lazarian method to estimate the Alfven Mach number using the structure ...
Burkhart, Blakesley, de Medeiros, J. R., Esquivel, A., Lazarian, A., Leao, I. C.   +4 more
core   +1 more source

High‐Rate Cross‐Channel Entanglement Swapping Between Independent On‐Chip Sources

Advanced Science, EarlyView.
To interconnect individual chip‐based quantum sources, high‐performance entanglement swapping is indispensable. Here, using low‐loss silicon chips with waveguide structure and frequency‐offset pumps, this work demonstrates high‐rate cross‐channel entanglement swapping.
Haoyang Wang, Huihong Yuan, Qiang Zeng, Lai Zhou, Haiqiang Ma, Zhiliang Yuan   +5 more
wiley   +1 more source

Effect of Mach Number on Stability of Boundary Layer Over a Rotating Cone in Hypersonic Flow

气体物理
Spinning vehicles achieve gyroscopic effects by rotating around their axis. However, transition significantly influences the stability of flight. In this work, a study of instability on the unstable modes in boundary layers over a rotating cone in ...
Yiyang GU, Hao DONG, Shicheng LIU, Yinglei JIANG   +3 more
doaj   +1 more source