Results 51 to 60 of about 1,831,047 (296)

Pulsed Laser‐Assisted Phase Engineering of Multimetallic Colloidal Nanocrystals With Complex Compositions

open access: yesAdvanced Materials, EarlyView.
The engineering of colloidal nanocrystals with complex compositions has emerged as a highly active area of research within nanomaterials science. This review covers key aspects of colloidal solid‐solution nanocrystal formation using pulsed laser irradiation.
Marina T. Candela   +4 more
wiley   +1 more source

Experimental advances in hardening, embrittlement and micro-mechanisms of metals under coupled irradiation, pre-stress and impact loading

open access: yesBaozha yu Chongji
During service, numerous structural metals in nuclear reactors are subjected to high-energy particle irradiation under prestressed conditions and may also experience unpredictable impact loads.
Xiangping YE   +7 more
doaj   +1 more source

Generation of spherically converging shock wave based on shock wave lens [PDF]

open access: yesMatter and Radiation at Extremes
The manipulation of intense shock waves to either attenuate or enhance damage has long been a key goal in the domain of impact dynamics. Effective methods for such manipulation, however, remain elusive owing to the wide spectrum and irreversible ...
Qi-Guang He   +5 more
doaj   +1 more source

Directing Near‐Perfect (001) Orientation in Wafer‐Scale BiOI Thin Films via Halide‐Mediated van der Waals Stacking

open access: yesAdvanced Materials, EarlyView.
Our work introduces a new framework that fundamentally changes how orientation in bismuth oxyhalide systems is approached. Comprehensive experiments, backed by theoretical models, reveal the pivotal role of halide anions to modify the van der Waals stacking energies required to direct orientation. Our method enables the fabrication of near perfect (001)
Gabriel Aygur   +10 more
wiley   +1 more source

INSTABILITY THEORY OF SHOCK WAVE IN A SHOCK TUBE

open access: yes, 1992
The instability theory of shock wave in a shock tube including the effects of tube wall andcontact surface is studied.The experimental data of unstable shock wave coincide with one of instabilitycriteria derived in the present paper.  ...
Xu CW(徐萃薇), Xu F(徐复)
core   +1 more source

The Role of Pulse Energy On Laser Induced Secondary Plasma Generation [PDF]

open access: yes, 2005
An observation about the role of laser pulse energy on the secondary plasma generation has been point out. The plasma emission intensity as a function of laser pulse energy was detected by using a monochromator combined with photomultiplier tube.
Setia Budi, Wahyu
core   +1 more source

Measurement of Ultra-High Speed by Optical Multistage Cascade Frequency Reduction Technology

open access: yesApplied Sciences
In order to reduce the frequency of high-frequency Doppler signal light, the electronic bandwidth of a data acquisition system is reduced. This paper mainly describes the principle and experimental verification results of optical multistage cascade ...
Heli Ma   +14 more
doaj   +1 more source

DNS of the interaction between a shock wave and a turbulent shear flow: some effects of anisotropy [PDF]

open access: yes, 2007
Direct numerical simulation is used to study the interaction of a Mach 1.5 shock wave and various types of anisotropic turbulent flows. We compare the interaction of isotropic, axisymmetric and sheared turbulences (sometimes combined), with a specific ...
Chassaing, Patrick   +2 more
core  

Advanced Materials for Biologics Delivery to Brain Tumors

open access: yesAdvanced Materials, EarlyView.
Material innovation is central to unlocking the therapeutic potential of biologics against many central nervous system diseases, including brain cancer. By engineering carriers with controlled transport, targeting, and release properties, advanced materials can overcome the blood–brain barrier and tumor microenvironment, improving the delivery of ...
Yuran Feng   +4 more
wiley   +1 more source

High-Update-Rate (25 kHz) Laser Ranging with Random Noise Modulation for Fast and Precise Absolute Distance Measurement

open access: yesSensors
This paper proposes a technique for precise distance measurement under laser random noise using autocorrelation demodulation. We conducted measurements within a 2 m range using a commercial digitizer with a sampling rate of 40 GS/s.
Yongchao Chen   +15 more
doaj   +1 more source

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