Results 101 to 110 of about 47,409 (286)

Analysis of Damage Mechanism of Ellipsoidal Assembled Tower Joint

Buildings
An assembled elliptical joint was designed for a lattice wind turbine tower, and four samples were analyzed under static loads. Additionally, finite element analysis software was employed to create 40 models, with the wall thickness of the ball seat and ...
Miao Li, Jiaxin Ma, Yang Wen
doaj   +1 more source

Electrohydraulic Folding Ring Actuators for Radially Contracting Applications

Advanced Science, EarlyView.
This work presents an Electrohydraulic Folding Ring Actuator that combines high‐performance electrohydraulic actuation with origami‐inspired folding geometry to achieve constricting radial actuation. This integration yields significant inner lumen constriction, alongside a gripping force capable of holding objects exceeding four times the actuator's ...
Gavril Yong En Tan, Quan Xiong, Jonathan William Ambrose, Zeynep Altundal, Raye Chen‐Hua Yeow   +4 more
wiley   +1 more source

Conceptualising quality early childhood education: Learning from young children in Brazil and South Africa through creative and play‐based methods

British Educational Research Journal, EarlyView., 2023
Abstract Early childhood has increasingly been acknowledged as a vital time for all children. Inclusive and quality education is part of the United Nations Sustainable Development Goals, with the further specification that all children have access to quality pre‐primary education.
Laura H. V. Wright, Irene Rizzini, Malibongwe Gwele, Lynn McNair, Cristina Laclette Porto, Marsha Orgill, E. Kay M. Tisdall, Malcolm Bush, Linda Biersteker   +8 more
wiley   +1 more source

球笼式等速万向节椭圆型沟道接触应力影响因素的分析研究

Jixie chuandong, 2010
With the parametric formula derivation for the elliptical-type raceway of ball-cage type constant velocity joint on the basis of the Hertz contact theory,it is found that in all of the structural parameters of the universal joint,the ball rotating ...
汤双清, 胡欢
doaj  

[A case of ball-and-socket deformity of the ankle joint].

Acta orthopaedica et traumatologica turcica, 2004
Ayak bileğinin ball-and-socket (BAS) deformitesi, fibüler hipoplazi, metatarsların yokluğu veya füzyonu, tarsal kemiklerin koalisyonu, alt ekstremite kısalığı gibi durumların eşlik ettiği nadir bir deformitedir. Dokuz yaşındaki bir kız çocuğunda sağ alt ekstremitede kısalık, sağ ayakta kavovarus deformitesi, dördüncü ve beşinci metatarsların kaidesinde
CETİNUS, Ercan, UZEL, Murat, BİLGİC, Erkal, KARAOGUZ, Ahmet   +3 more
openaire   +2 more sources

Multifaceted Roles of Tantalum in Promoting the Thermoelectric Performance of Mg3(Sb,Bi)2 Based Materials

Advanced Science, EarlyView.
A multifunctional tantalum incorporation strategy enables simultaneous tuning of carrier concentration, mitigation of grain‐boundary scattering, and enhanced phonon scattering in Mg3(Sb,Bi)2. These synergistic effects markedly improve carrier mobility and suppress lattice thermal conductivity, yielding both high material zT and high module conversion ...
Guangmeng You, Jingdan Lei, Kai Xu, Yuntian Fu, Xueke Gu, Chengxiao Peng, Zhen Wang, Jing Chen, Kunpeng Zhao, Chao Wang   +9 more
wiley   +1 more source

Beyond Percolation: Graphene‐Enabled Network Reinforcement Enhances Thermal Transport in Paraffin Phase‐Change Composites

Advanced Science, EarlyView.
Expanded‐graphite/graphene‐nanoplatelet hybrids deliver a near‐order‐of‐magnitude thermal‐conductivity enhancement in paraffin phase‐change materials. A microCT‐informed 3D modeling framework resolves the percolating EG backbone and captures sub‐voxel GNP enrichment, quantitatively linking microstructure to heat flow and revealing a graphene‐enabled ...
Thomas Hoke, Jackson Hoke, Shucheng Guo, Brittany Chan, Xi Chen   +4 more
wiley   +1 more source

Ball-and-socket jointing in basalt prisms

Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character, 1930
Abstract This paper is a brief explanation of this particular phenomenon, well developed in the Giants’ Causeway and many other basalt sills, a phenomenon that has puzzled so many physicists and geologists that it is worth a little special comment, although the explanation is exceedingly simple and conforms to the same general ...
openaire   +1 more source

Unlocking Strength‐Toughness Dilemma in High‐Entropy Borides by Intragranular Microstructural Reconstruction

Advanced Science, EarlyView.
An extreme non‐equilibrium process combining heavy direct current sintering and TiSi2 addition is used to construct intragranular energy dissipation units within high‐entropy boride ceramics to overcome the strength‐toughness trade‐off. The resulting ceramic demonstrates attractive mechanical properties with a flexural strength of 887 MPa and a ...
Yingjun Liu, Yuhan Yao, Yufei Zu, Zhaofu Zhang, Yang Zhang, Hongfeng Dong, Nan Zhang, Wuhao Cao, Lehao Liu, Yuan Hu, Ruiheng An, Wenhu Li, Luyi Zhu, Taotao Ai   +13 more
wiley   +1 more source

Impact of Electrolyte Formulation on the Phase Behavior and Interphase Formation of Sb/Graphite Electrodes for K‐Ion Batteries

Advanced Science, EarlyView.
Electrolyte formulation is shown to govern both interphase chemistry and bulk phase evolution in Sb/graphite anodes for potassium‐ion batteries. A diglyme‐based localized high‐concentration electrolyte promotes a thin inorganic‐rich interphase, suppresses deep graphite potassiation, limits electrode swelling, and stabilizes amorphous KxSb formation ...
Ezzoubair Bendadesse, Max Wacha, Zeynep Erdol, Yanan Sun, Carsten Prinz, Mirko Boin, Manuela Klaus, Tatiana Mishurova, Till Wolfram, Jürgen Janek, Philipp Adelhelm   +10 more
wiley   +1 more source