Results 111 to 120 of about 15,802,205 (308)

Time-Varying Meshing Stiffness Calculation and Dynamics Simulation of Multi-Spalling Gear

Machines
Spalling alters a gear’s time-varying meshing stiffness (TVMS), thereby affecting its vibration characteristics. However, most studies focus on single-spalling gears and overlook the possibility of multi-spalling gears. Additionally, because most spalls are irregular, traditional analytical models neglect the torsional effects that are caused by ...
Kong, Xiangxi, Yuan, Ye, Sun, Shuai, Xin, Yi, Meng, Qiang   +4 more
openaire   +2 more sources

Single‐Cell Resolution Mapping of Osteoarthritis‐Associated Chondrocyte Dynamics Using a High‐Density CMOS MEA Platform

Advanced Healthcare Materials, EarlyView.
Single‐cell and spatially resolved impedance mapping using a high‐density CMOS‐MEA platform enables non‐invasive monitoring of osteoarthritis‐associated chondrocyte dynamics. Continuous label‐free measurements reveal heterogeneous remodeling behaviors, including proliferation, migration, and phenotypic transitions, establishing a powerful approach for ...
Neha Deshpande, Pauline Coquart, Bram Theuns, Susanne Cremery, Jaime Rodolfo V. Garcia III, Julien Verplanken, Dennis Lambrechts, Dries Braeken, Liesbet Lagae, Johanna Bolander   +9 more
wiley   +1 more source

Chemical Strategies for Multistimuli Responsive Dynamic Covalent Materials in Regenerative Medicine

Advanced Healthcare Materials, EarlyView.
Multistimuli responsive dynamic covalent materials integrate reversible chemistry with the complex chemical, mechanical, and biochemical cues of regenerative environments. This review highlights chemical strategies based on orthogonal dynamic bonds, multicomponent networks, and hierarchical architectures to regulate mechanics, degradation, and ...
Saurabh Joshi, Matthew B. Baker, Dominik Schauenburg   +2 more
wiley   +1 more source

Influences of tooth crack on time-varying mesh stiffness of helical gears [PDF]

Proceedings of the 2017 4th International Conference on Machinery, Materials and Computer (MACMC 2017), 2018
Yanxue Wang, Taoyuan Chen
openaire   +1 more source

Vibration Characteristic Analysis of Cracked Gear Based on Time-varying Meshing Stiffness [PDF]

Journal of Mechanical Engineering, 2020
FAN Fengjie, ZHAN Xuyang, WANG Fulin, SHI Guixia, MENG Zong   +4 more
openaire   +1 more source

Effects of Time-Varying Mesh Stiffness, and its Modifications, on Planetary Gear Dynamics

, 2017
Time-varying mesh stiffness in gears has been found to be the primary cause for vibration in gears. This parametric excitation opens up bands of unstable regions of frequency, rather than just isolated resonances.
Mitra, Eeshan
core   +1 more source

Advances in 3D Bioprinting for Breast Cancer Modeling: Tumor Microenvironment, Metastasis, and Drug Screening

Advanced Healthcare Materials, EarlyView.
Three‐dimensional bioprinting transforms breast cancer modeling from simple constructs into spatially organized, multicellular, perfused, and patient‐derived platforms. This review shows how bioinks, cellular composition, architecture, and flow govern tumor behavior and drug response, while revealing why complexity alone is insufficient without ...
Mustafa Nakipoglu, Mahboobeh Mahmoodi, Ehsanul Hoque Apu, Fahimeh Shahabipour, Sibel Emir Diltemiz, Sanjib Saha, Halima Alem, Nureddin Ashammakhi   +7 more
wiley   +1 more source

Electrospun Core–Shell Bioadhesive Nanofiber Sheets Enable Durable Pulmonary Air Leak Sealing Under Wet and Dynamic Conditions

Advanced Healthcare Materials, EarlyView.
A core–shell electrospun nanofiber sheet provides strong adhesion and durable sealing on the wet and dynamic lung surface. The engineered fibrous architecture maintains airtight integrity and offers a potential alternative to fibrin sealants for pulmonary air leak management in thoracic surgery.
Tomohito Okubo, Kouji Hara, Naoyuki Hatayama, Kota Takahashi, Eriko Yamazoe, Takaaki Ito, Takao Takeuchi, Yoko Koide, Mayumi Yamada, Munekazu Naito, Kohei Tahara   +10 more
wiley   +1 more source

GDNF‐Enriched Small Extracellular Vesicle‐Loaded ROS‐Scavenging Hydrogel Promotes Neural Regeneration After Spinal Cord Injury

Advanced Healthcare Materials, EarlyView.
A glial cell line‐derived neurotrophic factor (GDNF)‐enriched small extracellular vesicle‐loaded reactive oxygen species (ROS)‐scavenging hydrogel integrates sustained neurotrophic delivery with local modulation of oxidative and inflammatory stress after spinal cord injury. The composite hydrogel improves local vesicle retention, protects neural tissue,
Xingyu Zhu, Zhong Liu, Kewei Li, Yuhong Fan, Kangjia Yang, Xiaopeng Sun, Hang Shi, Lixuan Sun, Yang Lou, Min Wang, Peipei Wu, Hui Qian, Qiang Fu, Hua Ding   +13 more
wiley   +1 more source

Analytical methods for spur gear time-varying mesh stiffness: principles and comparative analysis

Jixie chuandong
ObjectiveThe time-varying mesh stiffness of gears is influenced by multiple coupled factors, including initial parameters, assembly errors, overlap ratio, wear, and thermo-mechanical coupling effects.
LI Ziyuan, ZHOU Jianxing, ZHANG Jingqi, YANG Yuliang, ZHENG Guolong   +4 more
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