Results 121 to 130 of about 229,617 (288)

Estimation of Tendon Force Distribution in Prestressed Concrete Girders Using Smart Strand

Applied Sciences, 2017
The recently developed smart strand offers the possibility of measuring the prestress force of the tendon from jacking and all along its service life. In the present study, a method estimating the force distribution in all the tendons of a prestressed ...
Keunhee Cho, Sung Tae Kim, Jeong-Rae Cho, Young-Hwan Park   +3 more
doaj   +1 more source

Design Paradigms Based on Spring Agonists for Underactuated Robot Hands: Concepts and Application [PDF]

arXiv, 2020
In this paper, we focus on a rarely used paradigm in the design of underactuated robot hands: the use of springs as agonists and tendons as antagonists. We formalize this approach in a design matrix also considering its interplay with the underactuation method used (one tendon for multiple joints vs. multiple tendons on one motor shaft).
arxiv  

LIPUS Promotes Calcium Oscillation and Enhances Calcium Dependent Autophagy of Chondrocytes to Alleviate Osteoarthritis

Advanced Science, EarlyView.
A non‐invasive and safe physical therapy, low‐intensity pulsed ultrasound (LIPUS) can alleviate osteoarthritis. This study dynamically “visualizes” the invisible mechanical stimuli of LIPUS on living chondrocytes by fluorescence imaging technology in the form of calcium oscillations, confirming LIPUS maintains cartilage homeostasis by promoting ...
Mengtong Guan, Xiaoyu Han, Bo Liao, Wang Han, Lin Chen, Bin Zhang, Xiuqin Peng, Yu Tian, Gongyi Xiao, Xinhe Li, Liang Kuang, Ying Zhu, Dingqun Bai   +12 more
wiley   +1 more source

Single‐Cell Analysis Clarifies Pathological Heterogeneity in Tenosynovial Giant Cell Tumor and Identifies Biomarkers for Predicting Disease Recurrence

Advanced Science, EarlyView.
MP3 tumor cells, a specific subpopulation of tumor cells in D‐TGCT, regulated the differentiation of CD34+ Fbs into MMP3+ Fbs and APOE+ Fbs through COL6A3 − (ITGAV + ITGB8) interaction. APOE+ Fbs activated IL‐1B+CCL20+ Mφs through the CXCL12/CXCR4 axis. IL‐1B+CCL20+ Mφs and MMP3+ Fbs participated in the local invasion of D‐TGCT.
Yubin Xie, Chen Chen, Fei Wu, Yiman Peng, Jing Su, Yang Zhao, Hongjie Huang, Zhong Alan Li, Yin Pei, Wencui Li, Yi He, Tianchen Xue, Chenxi Cao, Sui Peng, Xin Zhang, Weidong Song   +15 more
wiley   +1 more source

Effect of 6 Weeks of Aerobic Training on TGF-Β1, Myostatin and Matrix Metalloproteinase 9 Genes Expression in the Tendon of Fast- and Slow-Twitch Muscles of Male Wistar Rats

Majallah-i dānishgāh-i ̒ulūm-i pizishkī-i Arāk, 2020
Background and Aim: Tendon, like the skeletal muscle, exhibits mechanical and morphological adaptations resulted from exercise training; however, little is known about the basic cellular and molecular mechanisms that regulate these responses.
Ghasem Mohammadnezhad, Hasan Matin Homaee, Farshad Ghazalian   +2 more
doaj  

Observations on the presence of plasma proteins in skin and tendon [PDF]

, 1957
John Humphrey, A. Neuberger, D.J. Perkins   +2 more
openalex   +1 more source

The differential effects of leukocyte-containing and pure platelet-rich plasma (PRP) on tendon stem/progenitor cells - implications of PRP application for the clinical treatment of tendon injuries

Stem cell research & therapeutics, 2015
IntroductionPlatelet-rich plasma (PRP) is widely used to treat tendon injuries in clinics. These PRP preparations often contain white blood cells or leukocytes, and the precise cellular effects of leukocyte-rich PRP (L-PRP) on tendons are not well ...
Yiqin Zhou, Jianying Zhang, Haishan Wu, M. Hogan, J. Wang   +4 more
semanticscholar   +1 more source

Electroactive Electrospun Nanofibrous Scaffolds: Innovative Approaches for Improved Skin Wound Healing

Advanced Science, EarlyView.
This review explores the potential of electroactive electrospun nanofibrous (EEN) scaffolds for enhanced skin wound healing. It discusses how a variety of electroactive materials can be prepared into EEN scaffolds via electrospinning technology, and their applications in various wound types. The review provides insights into the future perspectives for
Yang Zhang, Zhiyuan Zheng, Shilu Zhu, Liang Xu, Qingdong Zhang, Jie Gao, Min Ye, Shuwei Shen, Jinyu Xing, Ming Wu, Ronald X. Xu   +10 more
wiley   +1 more source

Universal-jointed Tendon-driven Continuum Robot: Design, Kinematic Modeling, and Locomotion in Narrow Tubes [PDF]

arXiv
Tendon-driven Continuum Robots (TDCRs) are promising candidates for applications in confined spaces due to their unique shape, compliance, and miniaturization capability. Non-parallel tendon routing for TDCRs have shown definite advantages including segments with higher degrees of freedom, larger workspace and higher dexterity. However, most works have
arxiv  

Autonomous Control of a Tendon-driven Robotic Limb with Elastic Elements Reveals that Added Elasticity can Enhance Learning [PDF]

arXiv, 2019
Passive elastic elements can contribute to stability, energetic efficiency, and impact absorption in both biological and robotic systems. They also add dynamical complexity which makes them more challenging to model and control. The impact of this added complexity to autonomous learning has not been thoroughly explored.
arxiv