Results 141 to 150 of about 6,179,270 (244)

A Microenvironment‐Adaptive Scaffold Rejuvenates Peripheral Nerve Regeneration During Aging Via Dual Modulation of Ferroptotic Stimuli in Schwann Cells

Advanced Science, EarlyView.
(i) Aging impairs peripheral nerve regeneration via its dual ferroptosis‐mediated pathologies in senescent schwann cells. (ii) The composite nerve conduit is a symbiosis niche integrating microenvironment‐responsive nanoparticles (Ga‐PTAs) and maxillofacial‐derived mesenchymal stem cells (Mmscs).
Ning Zhan, Lixin Tian, Lianjie Peng, Jingyu Zhang, Lining Lin, Xiaoting Zhang, Yaxian Luo, Zhichao Liu, Xinhua Yao, Mouyuan Sun, Yong He, Mengfei Yu, Huiming Wang   +12 more
wiley   +1 more source

An Engineered HR1‐Stem Helix‐HR2 Trimeric Platform for Developing Broad‐Spectrum Coronavirus Vaccines

Advanced Science, EarlyView.
Sun et al. report a self‐assembling trimeric subunit vaccine platform termed RHS, which integrates the JN.1 receptor‐binding domain (RBD) with the heptad repeat 1 (HR1), stem helix (SH), and heptad repeat 2 (HR2) regions. The SARS‐CoV‐2 RHS vaccine elicits variant‐reactive RBD‐specific antibodies and cross‐reactive SH‐specific antibodies against ...
Xikui Sun, Junhao Fan, Xiaolu Xie, Yuting Shi, Xiaoqing Liu, Tiefeng Xu, Sidi Yang, Keda Shi, Chengshu Xie, Shixiong Li, Siwen Chen, Ruoxi Cai, Ping He, Yuzhen Ye, Tao Chen, Xiancai Ma, Chunmei Li, Jingyou Yu, Deyin Guo   +18 more
wiley   +1 more source

Heteroatom‐Mediated Covalent Organic Framework Membranes With Nitrogen‐Enriched Nanochannels for Efficient Desalination

Advanced Science, EarlyView.
Heteroatom precursor engineering serves as a molecular‐level strategy to tailor hydrazide monomer reactivity and diffusion kinetics, enabling controlled assembly of highly crystalline COF membranes with ultramicroporous channels. The nitrogen‐enriched nanochannels deliver high water/ion selectivity via simultaneous water transport acceleration and ion ...
Guishan Hu, Muning Chen, Yunqiu Zhou, Yu Zhen, Miaomiao Tian, Yatao Zhang, Jingwei Hou, Junyong Zhu, Yong Wang   +8 more
wiley   +1 more source

ARCS: Active Radar Cross Section for Multi-Radiator Problems in Complex EM Environments. [PDF]

Sensors (Basel), 2020
Niu L, Xie Y, Wu P, Zhang C.
europepmc   +1 more source

Macrophage Trogocytosis of Tumor Cells Drives the Immunosuppression of Tumor Microenvironment

Advanced Science, EarlyView.
Trogocytosis efficiency varies significantly among different tumor cells and is inversely related to their cortical stiffness; this efficiency dictates the extent of immunosuppression via upregulation of CXCL5 and Arg‐1, ultimately driving CD8+T cell exhaustion and tumor escape.
Chao Liang, Jiaqi He, Wan‐Ru Zhuang, Yao Lei, Yanru Jiang, Xianbin Ma, Pan Liu, Zhujun Jiang, Yongheng Li, Hai‐Yan Xie   +9 more
wiley   +1 more source

Ultra Wideband Radar Cross Section Reduction by using non-Resonant Unit Cells. [PDF]

Sci Rep, 2020
Nadi M, Sedighy SH, Khalaj-Amirhosseini M.   +2 more
europepmc   +1 more source

High‐Current‐Density Acidic CO2 Electroreduction to Formic Acid Enabled by Multiscale Microenvironment Regulation Over Defect‐Rich Sn/SnOx

Advanced Science, EarlyView.
Acidic CO2 electroreduction to formic acid is enabled by integrating mixed Sn/SnOx nanoclusters, K+‐regulated interfacial solvation, and Janus wettability. Coordinated control of active sites, interfacial water, and gas‐liquid transport suppresses hydrogen evolution and delivers approximately 85% HCOOH Faradaic efficiency at 400 mA cm−2.
Qiaoqi Guo, Bowen Jiang, Le Huang, Kunyu Jiang, Rongrong Tang, Qinong Zhu, Huajun Feng, Mengyang Fan, Yijing Xia   +8 more
wiley   +1 more source

Radar Cross Section Near-Field to Far-Field Prediction for Isotropic-Point Scattering Target Based on Regression Estimation. [PDF]

Sensors (Basel), 2020
Liu Y, Hu W, Zhang W, Sun J, Xing B, Ligthart L.   +5 more
europepmc   +1 more source

RADAR CROSS SECTION

, 2007
Genel anlamda radar, modüle edilmişdalga formu ve anten ile hedef cisimleri tespit etmek için kullanılan elektromanyetik enerjinin iletilmesidir. Hedef cismin bir kısım enerjiyi radara geri yansıtmaktadır.
KAPAN, MUSTAFA
core  

Cross‐scale Material‐Structure Synergy for 2D Metamaterials: Toward Customizable Intelligent Electromagnetic Manipulation in Multiphysics Fields

Advanced Science, EarlyView.
Recent advances in metasurface‐enabled low‐observable technologies are reviewed from the perspective of cross‐scale material–structure synergy. Electromagnetic, thermal, optical, and acoustic stealth are highlighted together with dynamic tuning, programmable coding, data‐driven inverse design, artificial intelligence, multispectral compatibility, and ...
Shuhao Wang, Xing Yang, Liping Liu, Yang Peng, Yangyang Wang, Hualiang Lv   +5 more
wiley   +1 more source