Results 91 to 100 of about 3,523,664 (305)

Atrophic Skeletal Muscle‐Derived Extracellular Vesicles Transfer miR‐125a‐5p to Inhibit Bone Formation in Osteoporosis during Aging

Advanced Science, EarlyView.
A muscle‐bone endocrine pathway in aging is revealed in which extracellular vesicles released from atrophic skeletal muscle (Aged‐SKM‐EVs) inhibit bone formation. These EVs deliver miR‐125a‐5p to osteoblasts, thereby suppressing the SIRT7‐Sp7 signaling axis and osteogenic differentiation.
Xiaoyan Shao, Pan Zhang, Zhidan Fan, Jiaquan Lin, Xiang Chen, Na Liu, Wang Gong, Yi He, Yining Zhou, Tianshu Shi, Yong Shi, Yuze Ma, Wentian Gao, Haosheng Wang, Depeng Fang, Chengzhi Wang, Wenshu Wu, Wenjin Yan, Jianghui Qin, Dongyang Chen, Haiguo Yu, Qing Jiang, Baosheng Guo   +22 more
wiley   +1 more source

Verification of aero-engine numerical rotor models based on virtual static structural and modal tests

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение
A method for developing a numerical rotor model and its further verification based on the results of virtual static structural and modal tests was proposed.
K. V. Shaposhnikov, S. A. Degtyarev, M. K. Leontiev, S. V. Anisimov   +3 more
doaj   +1 more source

Activated Platelet–Released Heat Shock Protein 90α Triggers Autophagy‐Dependent Neutrophil Extracellular Trap Formation and Amplifies Sepsis

Advanced Science, EarlyView.
HSP90α is significantly upregulated in platelets from sepsis patients, with its origin from megakaryocyte‐derived trafficking. Furthermore, activated platelets secrete HSP90α into the extracellular space in both free and exosome‐associated forms. Finally, extracellular HSP90α directly engages TLR4 on neutrophils to induce autophagy, leading to NET ...
Chengbo Wang, Maodong Leng, Chenchen Sun, Jingyu Cao, Linfei Li, Yangyang Jia, Yongshuai Han, Yuchun Liu, Yaodong Zhang, Chenglong Zhang, Yingli Men, Ningyuan Liu, Yibing Cheng, Yixia Zhang, Ya Li, Zhenlong Li, Lidan Cui, Xiangzhan Zhu   +17 more
wiley   +1 more source

Explanation of the onset of bouncing cycles in isotropic rotor dynamics; a grazing bifurcation analysis. [PDF]

Proc Math Phys Eng Sci, 2020
Mora K, Champneys AR, Shaw AD, Friswell MI.   +3 more
europepmc   +1 more source

AI‐Enhanced Vibrational Capsule for Minimally Invasive Detection of Abnormal Bowel Tissue

Advanced Science, EarlyView.
A fully integrated vibration‐assisted capsule is presented for the minimally invasive detection of bowel lesions. The capsule incorporates a wireless sensor and an eccentric motor to probe tissue mechanics in situ. By coupling triaxial vibration signals with AI‐based classification and analytical modeling, the system enables early, non‐visual ...
Xizheng Fang, Yao Yan, Kenneth Omokhagbo Afebu, Andrew Bickerdike, Bo Tian, Yang Liu, Shyam Prasad   +6 more
wiley   +1 more source

Visualizing and Quantifying Impact with Mechanochromic Sensing Paints Based on Self‐Assembled Polydiacetylene‐Silk Core‐Shell Vesicles

Advanced Science, EarlyView.
Tracking physical impacts is important in many fields. Self‐assembled microparticles made from polydiacetylene and silk fibroin that change color from blue to red when hit can provide an alternative approach to traditional mechanical transducers, quantitatively visualizing impact with responses ranging from <100 to 770 N.
Marco Lo Presti, Giulia Guidetti, Elisabetta Ruggeri, Terri Lyne Carrington, Fiorenzo G. Omenetto   +4 more
wiley   +1 more source

Transient Flow Pattern and Vortex Evolution During the Startup Process of Novel Tulip-Type Hydraulic Turbines

Journal of Marine Science and Engineering
The Computational Fluid Dynamics (CFD) method is used to analyze the transient flow patterns and vortex evolution during the startup process of a novel tulip-type hydraulic turbine rotor.
Shanshan Wei, Meng Wang, Chuang Ren
doaj   +1 more source

Nonlinear Dynamics Numerical Analysis of Rolling Bearing-rotor System based on Finite Element Modeling

Jixie chuandong, 2021
Based on the bearing dynamics and rotor dynamics，considering the nonlinear factors such as Hertz elastic contact force and radial clearance between rolling element and inner and outer raceway of rolling bearing.
Yunlong Li
doaj  

A Shear Thickening Colloidal Suspension Functioning via Progressive Impact Jamming with Persistent Lubrication Layer

Advanced Science, EarlyView.
An ionic liquid‐based shear‐thickening fluid (ILSTF) exhibits lubricated dynamics from strong shear thickening to impact‐triggered jamming. A persistent nanometric solvation layer around silica governs both the shear thickening saturation in rheology and jamming front propagation under dynamic impact compression.
Yiran Wu, Yifeng Yu, Yiqiu Zhao, Qin Xu, T. X. Yu, Xin Zhang, Jinglei Yang   +6 more
wiley   +1 more source

Feline‐Inspired Robot Enabled by Combustion‐Driven Actuators for Agile Motion and High‐Payload Obstacle Traversal

Advanced Science, EarlyView.
Inspired by nature's competitive maneuvers, this study introduces a combustion‐driven soft actuator that powers a multi‐modal “Jump‐and‐Fly Catbot” (JFC). With millisecond response, high‐force output (over 70 times its weight) and precise control (error within 5%), the robot can jump, fly, hover, and escape from challenging environments, achieving ...
Hongkuan Ma, Yang Yang, Zhiguo He, Hongliang Ren, Pengcheng Jiao   +4 more
wiley   +1 more source