Results 111 to 120 of about 1,481,988 (297)

Note on shock reflection coefficient.

AIAA Journal, 1967
Abstract : The shock reflection coefficient, R sub w, is defined here as the ratio of pressure drop across a reflected disturbance from a shock wave to that across the incident disturbance wave (which is generated downstream of the shock). The treatment of shock reflection coefficients in the work of previous investigators is reviewed briefly.
openaire   +2 more sources

An experimental and analytical investigation of shock-wave reflection in a chemically relaxing gas [PDF]

, 1968
Experimental and analytical study of normal reflection of shock wave from shock tube end wall in relaxing diatomic ...
Hanson, R. K.
core  

Asymmetric Structure‐Driven Functional Synergy: A Multistimuli‐Activated Janus Nanomotor for Self‐Amplifying NO Cascade Therapy

Advanced Science, EarlyView.
The Janus nanomotors leverage an “asymmetric structure‐driven functional synergy” strategy to orchestrate spatiotemporally coordinated catalytic functions, in situ self‐amplifying NO generation, and deep tumor penetration, thereby enabling controllable, sustained, and uniform NO generation within the tumor microenvironment.
Chengcheng Li, Yu Zhang, Yu Chen, Lingyun He, Xian Shen, Weijian Sun, Hongbo Zhang   +6 more
wiley   +1 more source

AI‐Designed TREM1‐Targeted LYTAC Nanoparticles Reprogram the Neuroimmune Microenvironment in Traumatic Brain Injury

Advanced Science, EarlyView.
AI‐enabled de novo design of a TREM1 binder, integrated into a BBB‐crossing and macrophage‐targeted nanoplatform, enables TREM1 degradation and attenuates neuroinflammation, thereby promoting neuroprotection and tissue repair after traumatic brain injury. ABSTRACT Secondary neuroinflammation drives progressive damage after traumatic brain injury (TBI),
Yimin Huang, Yuan Liu, Huan Peng, Yu Ni, Zhengqiao Jiang, Chenxuan Yu, Xincheng Zhang, Huayu Kang, Yanchao Liu, Juan Chen, Kai Zhao, Lin Han, Xin Zou, Kai Shu, Xiaochuan Wang, Jian‐Zhi Wang, Ting Lei, Chao Gan, Jianfeng Liu, Huaqiu Zhang   +19 more
wiley   +1 more source

Microphysics of Particle Reflection in Weibel-mediated Shocks

The Astrophysical Journal
Particle-in-cell (PIC) simulations have shown that relativistic collisionless shocks mediated by the Weibel instability accelerate ∼1% of incoming particles, while the majority are transmitted through the shock and become thermalized.
Jasmine Parsons, Anatoly Spitkovsky, Arno Vanthieghem   +2 more
doaj   +1 more source

Numerical Investigation of Toroidal Shock Wave Focusing in a Cylindrical Chamber

, 2005
In this paper, focusing of a toroidal shock wave propagating from an annular shock tube into a cylindrical chamber was investigated numerically with the dispersion controlled dissipation (DCD) scheme. The first case for an incident Mach number of 1.5 was
姜宗林, 滕宏辉, Hosseini SHR, 韩肇元, Takayama K, Teng, H (reprint author), Chinese Acad Sci, Inst Mech, LHD, Beijing 100080, Peoples R China.   +5 more
core   +1 more source

A Dual‐Functional Nanoplatform Targeting the dsDNA–cGAS Axis to Mitigate Disc Degeneration and Aberrant Innervation

Advanced Science, EarlyView.
RU@PEI‐ZIF integrates dsDNA scavenging with local cGAS inhibition to suppress the dsDNA–cGAS–STING/Netrin‐1 axis in intervertebral disc degeneration. By attenuating nucleus pulposus cell senescence, inflammatory and matrix‐catabolic responses, and pathological sensory innervation, this dual‐functional nanoplatform preserves disc integrity and reduces ...
Zhaojun He, Tianyu Chen, Zezheng Liu, Xinlin Huang, Ruitangbin Jiang, Yihao Liu, Baojing Xu, Yuxiang Li, Kangning Zhao, Huibo Yan, Lei Zhou, Can Liu, Qingchu Li   +12 more
wiley   +1 more source

An experimental and theoretical study of converging polygonal shock waves

, 2002
An experimental investigation was carried out to explore the possibility of producing converging polygonal shocks in an essentially two-dimensional cavity.
Tillmark, Nils,, Johansson, Börje,, Apazidis, Nicholas,, Lesser, M. B.   +3 more
core   +1 more source

Mechanism of Direct Acoustic Construction and Gradient Properties Tuning

Advanced Science, EarlyView.
Directed acoustic construction enables omnidirectional gradient tuning of fingerprint‐inspired microstructures. By investigating the DAC mechanisms, diamond particles are found to enhance acoustic physical, mechanical, and chemical effects, promoting acoustic curing and broadening the range of gradient property tuning.
Dandan Wu, Lijuan Zheng, Guang Yao, Zijun Liu, Liyan Luo, Cile Liang, Chengyong Wang   +6 more
wiley   +1 more source

Conceptualising quality early childhood education: Learning from young children in Brazil and South Africa through creative and play‐based methods

British Educational Research Journal, EarlyView., 2023
Abstract Early childhood has increasingly been acknowledged as a vital time for all children. Inclusive and quality education is part of the United Nations Sustainable Development Goals, with the further specification that all children have access to quality pre‐primary education.
Laura H. V. Wright, Irene Rizzini, Malibongwe Gwele, Lynn McNair, Cristina Laclette Porto, Marsha Orgill, E. Kay M. Tisdall, Malcolm Bush, Linda Biersteker   +8 more
wiley   +1 more source