Results 71 to 80 of about 527,249 (162)

Advanced biomimetic design strategies for porous structures promoting bone integration with additive-manufactured Ti6Al4V scaffolds

Journal of Materials Research and Technology
The natural bone structure exhibits a radial gradient with dense cortical bone externally and porous cancellous bone internally. However, previous studies proposing scaffold designs have predominantly focused on homogeneous porous structures.
Yongyue Li, Qing Han, Hao Chen, Wenbo Yang, Yongjun Xu, Yongqi Zhang, Jiangbo Zhang, Li Liu, Weilong Zhang, Hao Liu, Bingpeng Chen, Jincheng Wang   +11 more
doaj   +1 more source

Research on Dual-Phase Composite Forming Process and Platform Construction of Radial Gradient Long Bone Scaffold

Bioengineering
The structure and composition of natural bone show gradient changes. Most bone scaffolds prepared by bone tissue engineering with single materials and structures present difficulties in meeting the needs of bone defect repair.
Haiguang Zhang, Rui Wang, Yongteng Song, Yahao Wang, Qingxi Hu   +4 more
doaj   +1 more source

Recent Progress of Fabrication of Cell Scaffold by Electrospinning Technique for Articular Cartilage Tissue Engineering

International Journal of Biomaterials, 2018
As a versatile nanofiber manufacturing technique, electrospinning has been widely employed for the fabrication of tissue engineering scaffolds. Since the structure of natural extracellular matrices varies substantially in different tissues, there has ...
Yingge Zhou, Joanna Chyu, Mimi Zumwalt
doaj   +1 more source

Dual stochastic natural gradient descent

Information Geometry
Abstract The multinomial logistic regression (MLR) model is widely used in statistics and machine learning. On the one hand, stochastic gradient descent (SGD) is the most common approach for determining the parameters of a such model in big data scenarios, due to its simplicity and low computational complexity property.
Borja Sánchez-López, Jesus Cerquides
openaire   +2 more sources

A Singular nonlinear problems with natural growth in the gradient

Mathematical Modelling and Analysis
In this paper, we consider the equation  with boundary conditions where  is an open bounded subset of is a Leray-Lions operator defined on is a characteristic function, and is a Carathéodory function such thatsign Forand sufficiently small, we prove ...
Boussad Hamour
doaj   +1 more source

Online natural gradient as a Kalman filter

Electronic Journal of Statistics, 2018
3rd version: expanded ...
openaire   +3 more sources

Janus hydrogel microrobots with bioactive ions for the regeneration of tendon-bone interface

Nature Communications
Regenerating natural gradients of the tendon‒bone interface (TBI) is a major challenge in the reconstruction of rotator cuff tear (RCT). In this study, magnetic Janus hydrogel microrobots to match the TBI orientation during RCT reconstruction surgery are
Zichuan Ding, Yongrui Cai, Haocheng Sun, Xiao Rong, Sipei Ye, Jiaxuan Fan, Yahao Lai, Zhimin Liang, Chao Huang, Peilin Li, Xiaoxue Fu, Liu Wang, Guosheng Tang, Zongke Zhou, Zeyu Luo   +14 more
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Natural gradient composite made of aragonite nanofibers: the ligament of bivalve Acesta marissinica. [PDF]

RSC Adv, 2020
Pan X, Zhang G.
europepmc   +1 more source

Spatio-Temporal Distribution of Aedes Albopictus and Culex Pipiens along an Urban-Natural Gradient in the Ventotene Island, Italy. [PDF]

Int J Environ Res Public Health, 2020
Manica M, Riello S, Scagnolari C, Caputo B.   +3 more
europepmc   +1 more source

All-natural charge gradient interface for sustainable seawater zinc batteries

Nature Communications
Paring seawater electrolyte with zinc metal electrode has emerged as one of the most sustainable alternative solutions for offshore stationary energy storages owing to the intrinsic safety, extremely low cost, and unlimited water source.
Wenjie Fan, Chunliu Zhu, Xingjie Wang, Huanlei Wang, Yue Zhu, Jingwei Chen, Weiqian Tian, Jingyi Wu, Guihua Yu   +8 more
doaj   +1 more source