Results 81 to 90 of about 1,987,255 (280)

Development of a Thin-Film Sensor for In Situ Measurement of the Temperature Rise in Rolling Contacts with Fluid Film and Mixed Lubrication. [PDF]

Sensors (Basel), 2021
Emmrich S, Plogmeyer M, Bartel D, Herrmann C.   +3 more
europepmc   +1 more source

Rhoifolin Alleviates Ulcerative Colitis by Targeting NMNAT1 and Activating SIRT1‐FOXO1 Signaling to Enhance ILC3s Effector Function

Advanced Science, EarlyView.
Rhoifolin directly targets NMNAT1, thereby activating nicotinamide salvage pathway and promoting intracellular NAD+ biosynthesis. Elevated NAD+ levels enhance SIRT1 activity, leading to FOXO1 deacetylation and nuclear translocation. Nuclear FOXO1 subsequently binds to the IL‐22 promoter, upregulating IL‐22 transcription and potentiating ILC3 effector ...
Hongqiong Yang, Yishu Zhang, Sijia Feng, Xiaoqing Ma, Jiayi Feng, Junwei Wang, Jialin Gao, An Pan, Dapeng Wu, Kang Ding, Caijuan Zheng, Qi Lv, Lihong Hu   +12 more
wiley   +1 more source

On the Lubricants mixed into Iron Powder

Journal of the Japan Society of Powder and Powder Metallurgy, 1959
In this paper, the lubricating abilities of several organic lubricants used in the powder metallurgy industry is investigated. On five kinds of lubricant, zinc stearate; stearic acid, aluminum stearate, lead stearate and, calcium stearate, mixing to Hoganas sponge iron powder, the following properties are compared with each other, as zinc stearate is ...
openaire   +2 more sources

Drop‐Location‐Insensitive Droplet‐Based Electricity Generator Using Polydimethylsiloxane Slippery Covalently Attached Liquid Coatings

Advanced Science, EarlyView.
Drop‐location sensitivity remains a key barrier to practical droplet‐based electricity generators (DEGs). Here, a polydimethylsiloxane slippery covalently attached liquid (PDMS‐SCAL)‐coated interface promotes droplet sliding instead of splitting or bouncing, allowing stable electricity generation from randomly falling raindrops. The resulting PDMS‐SCAL‐
Jung Bin Yang, Donghyeon Yoo, Hideaki Teshima, Donghan Lee, Dongwhi Choi, Dong Rip Kim, Nenad Miljkovic   +6 more
wiley   +1 more source

Programmable Topological Magnetic Textures in Above‐Room‐Temperature 2D Ferromagnet Fe3GaTe2

Advanced Science, EarlyView.
This work demonstrates the programmable generation and deterministic modulation of magnetic skyrmion bags with high‐order topological numbers in the above‐room‐temperature 2D ferromagnet Fe3GaTe2 (FGaT) via current‐pulse control. Furthermore, highly efficient electrical manipulation and current‐driven parallel motion of these high‐order topological ...
Hanqing Shi, Yilian Xi, Jingwei Zhang, Jiaqi Liu, Zhizhen Ren, Shilei Zhang, Weichang Hao, Haifeng Feng, Yi Du   +8 more
wiley   +1 more source

Study on the tooth surface wear characteristics of helical gears under mixed elastohydrodynamic lubrication [PDF]

Mechanical Sciences
Existing research on tooth surface wear of helical gears has insufficiently considered the complex and variable lubrication conditions between meshing tooth surfaces.
Z. Yin, Z. Yin, Z. Yin, B. Liu, C. Yang, H. Wang, X. Fu, J. Xu, Z. Fan   +8 more
doaj   +1 more source

Root‐Inspired Microneedle Patch With Interlocked Rigid‐Soft Architecture for High Tissue‐Adaptiveness

Advanced Science, EarlyView.
A root‐inspired microneedle array patch uses lattice‐based mechanical interlocking to unite rigid microneedles with a flexible substrate. The interlocked rigid–soft architecture improves interfacial bonding, supports stable adhesion on curved and wet tissues under dynamic motion, and provides a versatile platform for robust biointerfacing and future ...
Jongchan Lee, Yeongjun Song, Yonghyun Cho, Hyo In Kim, Dong‐Hyun Youn, Jinbong Park, Seungbeom Choi, Dohyun Kwon, Brian Jun Lee, Sangyul Baik   +9 more
wiley   +1 more source

Translational Barriers and AI‐Driven Challenges of Microfluidics‐Enabled Wearables and Implantable Systems in Personalized Medicine

Advanced Science, EarlyView.
An integrative review of microfluidics‐enabled wearables and implantable systems reveals a single‐track translation pipeline, bridging functional biomaterials with clinical utility. Dynamic feedback loops driven by artificial intelligence advance diagnostics toward personalized closed‐loop theranostics.
Ke Huang, Ching Yin Fong, Xin Huang, Bee Luan Khoo   +3 more
wiley   +1 more source

Analysis on Mixed Lubrication Performance of Pin-bush Pairs in Large-sized Marine Chain

Jixie chuandong
To investigate the issue of wear in the roller chain of high-power marine equipment engines, an analysis of the motion characteristics of the pin-bush pair was conducted.
Liu Yi, Liu Xiaoling, Liu Guoliang, Li Qun   +3 more
doaj  

An assessment of the effect of surface topography on coefficient of friction for lubricated non-conformal contacts

Frontiers in Mechanical Engineering
Determining an accurate state of lubrication is of utmost importance for the precise functionality of machine elements and to achieve elongated life and durability.
Deepak K. Prajapati, Jonny Hansen, Marcus Björling   +2 more
doaj   +1 more source