Results 221 to 230 of about 2,057 (252)

The genus <i>Thaxterogaster</i> (Cortinariaceae): phylogeny and species diversity in Western China. [PDF]

Mycology
Wang ZR, Zhou SY, Liu FF, Yang ZL.
europepmc   +1 more source

Noise Fingerprints as a Quantitative Order Parameter for Polarization‐ and Defect‐Mediated Switching in Hafnia Ferroelectrics

Advanced Science, EarlyView.
Low‐frequency noise fingerprints in hafnia ferroelectrics provide a quantitative handle to resolve the long‐standing debate between polarization‐mediated and defect‐mediated switching. By tuning oxygen vacancy density via ALD O3 dose time and applying a physically constrained deconvolution, we extract bias‐resolved current fractions for both mechanisms
Ryun‐Han Koo, Jiseong Im, Joon Hwang, Sung‐Ho Park, Jonghyun Ko, Kangwook Choi, Sangwoo Ryu, Gyuweon Jung, Jong‐Ho Lee   +8 more
wiley   +1 more source

Investigating the Influence of Effective Parameters on Tooth Geometry of Spherical Involute Bevel Gears Through Solving Napier’s Equations

International Journal of Engineering
A. R. Salmanian Mobarakeh, M. Poursina, M. Rezaei   +2 more
openaire   +1 more source

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

A Microfiber‐Reinforced Janus Hydrogel E‐Skin With Recyclable Feature for Multimodal Sensing and Gender‐Specific Physiological Monitoring

Advanced Science, EarlyView.
Hydrogel‐based wearable electronics hold great promise for physiological monitoring in privacy‐sensitive regions. In this study, a polyurethane (PU) microfiber‐reinforced gelatin hydrogel e‐skin is developed, boasting multiple advantages such as ultra‐thinness, high toughness, and long‐term skin conformability.
Yarong Ding, Yufeng Li, Shaozhe Tan, Jiachun Sun, Xu Yang, Xuesi Zhang, Zhenhua Lin, Zhenyu Li, Yue Hao, Yannan Liu, Yingchun Li, Jingjing Chang   +11 more
wiley   +1 more source

All Solid Lithium Metal‐Polymer Battery End‐of‐Life: an Investigation of Symmetric, Battery, and Bilayer Cells

Advanced Science, EarlyView.
In this study, the evolution of the lithium (Li)/polymer interface is compared in a realistic pouch cell configuration, either in Li/Li symmetric cell or in full Li/LiFePO4${\rm LiFePO}_4$ batteries thanks to X‐ray micro‐tomography. While Li/Li symmetric cells are the reference cell for probing the interface stability, results demonstrated that the end‐
Lucile Magnier, Didier Devaux, Jérôme Adrien, Ce Xiao, Philippe Dumaz, Margaud Lécuyer, Marc Deschamps, Eric Maire, Renaud Bouchet   +8 more
wiley   +1 more source

Selected Aspects of Precision Grinding Processes Optimization. [PDF]

Materials (Basel)
Kacalak W, Lipiński D, Szafraniec F.
europepmc   +1 more source

Coal falling trajectory and strength analysis of drum of shearer based on a bidirectional coupling method. [PDF]

Sci Rep
Zhang M, Zhao L, Shi B.
europepmc   +1 more source

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The Modeling of Bevel Gears Using the Exact Spherical Involute

Journal of Mechanical Design, 1994
The solid modeling of bevel gears has been recognized as a major design challenge. Various approaches have been proposed to approximate the theoretical involute-generated contact surface of bevel gears. As a means to accurately represent contact surfaces of these gears, the exact spherical involute is introduced here.
M. J. Al-Daccak, J. Angeles, M. A. Gonza´lez-Palacios   +2 more
openaire   +1 more source

A kinematic investigation of a spherical involute bevel-geared system

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2010
This study gives an exact definition of the spherical involute curved face and the pitch azimuthal angle of a bevel-geared system. Using the coordinate-transformation method, it derives the kinematic relations between the operating pressure angles, pitch azimuthal angles, operating pitch cone angles, base cone angles, and pitch action angles. An exact
H W Lee, K O Lee, D H Chung
openaire   +1 more source