Results 41 to 50 of about 3,217,305 (276)

Microgeometrical tooth profile modification influencing efficiency of planetary hub gears [PDF]

International Journal of Powertrains, 2018
Planetary hub systems offer desired speed and torque variation with a lighter, compact and coaxial construction than the traditional gear trains. Generated friction between the mating teeth flanks of vehicular planetary hubs under varying load-speed conditions is one of the main sources of power loss.
fatourehchi, Ehsan, Mohammad Pour, Mahdi, Rahnejat, Homer, King, Paul D., Trimmer, Gareth, Womersley, R, Williams, Alan   +6 more
openaire   +1 more source

Analysis of the Modification Sensitivity of Herringbone Gear

Jixie chuandong, 2022
In order to improve the applicability of herringbone gear modification results， it is necessary to analyze the sensitivity of gear surface modification parameters.
Yong Zhao, Yajun Huang, Bin Yan, Yong Guo, Yuanyuan Zhang, Wei Cao   +5 more
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A New Modification Method with Double Spline Curve for the Tooth Surface Design of Spur Gear

Jixie chuandong, 2021
A new tooth surface design is proposed to spur gears with a tooth surface modification defined by double spline curves， which are used to represent the tooth profile and longitudinal profile， respectively.
Wenjun Fan, Yuansheng Zhou, Xueqing Wang, Jinyuan Tang   +3 more
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Effect of tooth profile modification on wear in internal gears

IOP Conference Series: Materials Science and Engineering, 2018
Internal gears are often used in the automotive industry when two gears are required to rotate in the same direction. Tooth shapes, slippage speeds at the beginning and end of meshing are different according to the external gears. Manufacturing of internal gears is more difficult than external gears.
Tunalıoğlu, Mert Şafak, Tuç, Bedri
openaire   +1 more source

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

Advanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen, Patryk Wąsik, Juan Fernando Cucuyame Morales, Marie Kate Palau, Adrian Francisco Duran Ornelas, Phani Saketh Dasika, Jin Hee Kim, Radhika Laxminarayana, Eric Hintsala, Greta Chang, Junzhi Liao, Lizhi Sun, Nathan Lord, Atsushi Arakaki, Paul Bardunias, Pablo Zavattieri, David Kisailus   +16 more
wiley   +1 more source

An Epigenetic Fate Converter Based on Nuclei‐Targeting Lipid Nanoparticles Drives Neuronal Programming of Stem Cells for Spinal Cord Repair

Advanced Functional Materials, EarlyView.
Schematic illustration of LNP‐MPG nuclei‐targeting delivery of HMW‐FGF2 promoting histone acetylation to regulate the fate of DPSCs and treat spinal cord injury. LNPs components include pHMW‐FGF2 plasmid, DSPC, Dlin‐MC3‐DMA, cholesterol, and PEG2000, and are modified with MPG to form HMW‐FGF2@LNP‐MPG (HLM). HLM nuclei‐targets DPSCs to deliver HMW‐FGF2,
Heng Zhou, Qiang Qin, Xiqin Li, Hanyu Ding, Chun Xu, Yan He, Qingsong Ye   +6 more
wiley   +1 more source

Establishment of a Responsive Tooth‐on‐a‐Chip Platform for the Assessment of Regenerative Factors in Dental Tissue Regeneration

Advanced Healthcare Materials, EarlyView.
Using a tooth‐on‐a‐chip model that recreates interactions between dental epithelial and mesenchymal cells, the authors show that sequential FGF10+BMP4, BMP2, and Emdogain produce distinct, biologically consistent regenerative responses. The platform recapitulates known signal‐specific effects and, for the first time, reveals an influence of Emdogain on
Chong Huang, Wei Ji, Fang Yang, X. Frank Walboomers   +3 more
wiley   +1 more source

Advances in Bio‐Integrated Edge Computing Systems for Smart and Connected Health

Advanced Materials, EarlyView.
This review explores advances in bio‐integrated edge computing for healthcare, focusing on co‐designing computing, sensing, and energy strategies to overcome integration and power challenges for optimized, decentralized operation. ABSTRACT Recent advances in bio‐integrated healthcare technologies have enabled continuous, high‐resolution monitoring and ...
Gyuwon Kim, Seungwon Yoo, Tae Woog Kang, Yunuo Huang, Woon‐Hong Yeo   +4 more
wiley   +1 more source

Self‐Sealing Microneedles Improve Precision and Reduce Reflux in Subretinal Cell Transplantation

Advanced Materials Technologies, EarlyView.
Ultrafine 49G microneedles enable subretinal delivery of induced pluripotent stem cell‐derived retinal pigment epithelial cells through a 50 µm outer diameter tip. Compared with conventional 38G microcannulas, these microneedles reduce cell suspension reflux in a rabbit model, highlighting the potential of microinvasive delivery instruments to improve ...
Jared Ching, Hinako Ichikawa, Aya Motoyoshi, Shin Tanaka, Liam Morrow, Satoshi Shirae, Noriko Sakai, Shohei Kitahata, Michiko Mandai, Kazuaki Kadonosono   +9 more
wiley   +1 more source

Theoretical Research of the Modification of Cycloidal Gear Used in High Precision RV Reducer

Jixie chuandong, 2018
The second-order logarithmic superposition of modification quantity along the normal direction to the theory of conjugate tooth profile of cycloid gear of RV reducer is carried out,the cycloid tooth profile equation after the modification is deduced.
Ke Qingxun, Deng Xiaozhong, Su Jianxin, Nie Shaowu, Geng Longlong, Liang Shuaifeng   +5 more
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