Results 101 to 110 of about 2,318,874 (286)

滚珠型弧面凸轮机构的摩擦学设计

open access: yesJixie chuandong, 2012
Tribology design methods are applied in the design of ball globoidal cam,and the calculation formulae of EHD oil film thickness between steel ball and cam raceways are deduced.That the film thickness ratio used in judging lubrication state is adopted as ...
于春玲
doaj  

Molecular Dynamics Study of Nanoscratching Behavior of Water-Film-Covered GaN (0001) Surface Using Spherical Diamond Abrasive

open access: yesCrystals
Molecular dynamics (MD) simulation of nanoscratching with a spherical diamond abrasive was performed to investigate the role of water molecular film on the surface nanotribological characteristics and subsurface lattice damage of GaN (0001) at the atomic
Jiaqin Yin   +3 more
doaj   +1 more source

Regulated Ion‐Diffusion Hydrogels for Subtle and Multimodal Temperature‐Strain Sensing in Wound Monitoring

open access: yesAdvanced Functional Materials, EarlyView.
A soft, dual‐channel hydrogel patch enables simultaneous detection of wound temperature and strain by integrating ion‐diffusion‐mediated thermoelectric and resistive sensing. The conformal design maintains stable performance during motion, capturing subtle inflammatory and mechanical changes for continuous wound monitoring.
Yu Fang   +7 more
wiley   +1 more source

Fully Additive Vertical Organic Electrochemical Transistors on Renewable and Compostable Substrates Enable Ultrasensitive Bioelectronics

open access: yesAdvanced Functional Materials, EarlyView.
Fully additive vertical organic electrochemical transistors (vOECTs) with channel‐length of 226 nm on a 50 µm compostable substrate achieve >106 current modulation and ∼36 mS transconductance. Ion‐selective integration enables 1.1 mA dec−1 sensitivity and 36 µm detection limit, highlighting a scalable platform for sustainable electronics and ...
Giulia Frusconi   +3 more
wiley   +1 more source

QFT Programme & Film Directions 1983 Spring

open access: yes, 1983
Queen's Film Theatre programme for Spring 1983. 31 pages in total. A number of film reviews and images are included, as are screening dates and times. Film Directions (Vol. 5, No. 18) is also included at the back of the programme.
Queen's Film Theatre; Film Directions
core   +1 more source

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

open access: yesAdvanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand   +13 more
wiley   +1 more source

QFT Programme & Film Directions 1985 Summer

open access: yes, 1985
Queen's Film Theatre programme for Summer 1985. A number of film reviews and images are included, as are screening dates and times. Film Directions (Vol. 7, No. 27) is also included.
Queen's Film Theatre; Film Directions
core   +1 more source

Analysis of Thermal Elastohydrodynamic Lubrication of Modified Gear Rack Transmission

open access: yesJixie chuandong, 2017
The elastohydrodynamic lubrication model of gear rack transmission is established,considering the gear that is modified and thermal effect,comprehensively considering the variation of equivalent radius of curvature,entrainment velocity and the ...
Xu Caihong   +3 more
doaj  

QFT Programme & Film Directions 1983 Summer

open access: yes, 1983
Queen's Film Theatre programme for Summer 1983. A number of film reviews and images are included, as well as screening times and dates. Film Directions (Vol. 5, No. 19) is also included in the middle of the programme.
Queen's Film Theatre; Film Directions
core  

Structure‐Guided Dynamical Mechanics in Bioinspired Double Twisted Laminated Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
This work explores a dynamic mechanistic study of crack propagation and puncture testing via real‐time monitoring of crack initiation, propagation, and termination through nature‐inspired single and double twisted architectures fabricated from cellulose nanocrystals.
Justin Brackenridge   +4 more
wiley   +1 more source

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