Results 151 to 160 of about 17,339 (289)

Study on the New Method of Finite Element Analysis of Helical Gear Contact

Jixie chuandong, 2018
A new method of finite element mesh generation is proposed based on meshing characteristics of helical gear. The contact line in the process of engagement could pass through the unit nodes successively.
Lu Fengxia, Chen Wenwei, Liu Weiping, Zhu Rupeng, Zou Xiaozhu   +4 more
doaj  

Smart Catheters for Diagnosis, Monitoring, and Therapy

Advanced Healthcare Materials, EarlyView.
This study presents a comprehensive review of smart catheters, an emerging class of medical devices that integrate embedded sensors, robotics, and communication systems, offering increased functionality and complexity to enable real‐time health monitoring, diagnostics, and treatment. Abstract This review explores smart catheters as an emerging class of
Azra Yaprak Tarman, Samiha Ahmed, Majed Othman Althumayri, Megan Guy, Darlenne Chavez Lugo, Frances S. Ligler, George T. Ligler, Rahmi Oklu, Hiroshi Kawahira, Michael J. McShane, Jun Kameoka, Jonathan Bova, Hatice Ceylan Koydemir   +12 more
wiley   +1 more source

Self‐Assembling Peptide Hydrogels Support Stromal Vascular Fraction Viability to Promote In Vivo Nerve Regeneration

Advanced Healthcare Materials, EarlyView.
Stromal vascular fraction (SVF) may enhance nerve repair, especially when delivered in a self‐assembling peptide hydrogel (SAPH). In vitro, softer SAPH increased neuronal explant outgrowth and supported greater SVF viability and proliferation. In a rat sciatic defect, SVF in an optimized SAPH produced motor and sensory recovery equivalent to autograft ...
Liam A. McMorrow, Steffan Llewellyn, Jared McSweeney, Alessandro Faroni, Aline F. Miller, Alberto Saiani, Adam J. Reid   +6 more
wiley   +1 more source

Vibration in Planetary Gear Systems with Unequal Planet Stiffnesses [PDF]

An algorithm suitable for a minicomputer was developed for finding the natural frequencies and mode shapes of a planetary gear system which has unequal stiffnesses between the Sun/planet and planet/ring gear meshes.
August, R., Frater, J. L., Oswald, F. B.
core   +1 more source

Hybrid Scaffolds Decouple Biochemical & Biophysical Regulation of Cell Phenotype

Advanced Healthcare Materials, EarlyView.
Replicating tissue‐specific extracellular matrix is crucial for understanding its role in disease. This work demonstrates independent control over stiffness, composition and 3D collagen architecture using hybrid scaffolds: patterned collagen perfused with defined hydrogels.
Xinyuan Song, Samantha C. Mitchell, Abbie N. Smart, William Hardiman, Daniel V. Bax, Ceri E. Staley, Catherine Probert, Pamela Collier, Marian Meakin, Alison A. Ritchie, Tania Mendonca, Amanda J. Wright, Victoria James, Anna M. Grabowska, Catherine L. R. Merry, Serena M. Best, Ruth E. Cameron, Jennifer C. Ashworth   +17 more
wiley   +1 more source

Numercial Calculation of Time-varying Meshing Stiffness of Spur Gear based on Weber Energy Method

Jixie chuandong, 2015
Based on the Weber energy method,the numerical integral calculation formula of timevarying meshing stiffness for spur gear is derived.The meshing points are obtained by using the method of variable increment and infinite approximation method.By using ...
Yang Changhui, Xu Taojin, Xu Hongbin, Wang Zhiqiang, Liang Juke, Li Bingqian   +5 more
doaj  

A Biomimetic Buffering Hydrogel Scaffold for Long‐Term Culture of Patient‐Derived Tumor Organoids

Advanced Healthcare Materials, EarlyView.
A biomimetic fibrous buffering hydrogel controls the local acidification at the tumoroid/hydrogel interface at the physiologically relevant level over 21‐day culture. The buffering effect promotes cancer cell proliferation in the tumoroids and supports the structural integrity and mechanical properties of the hydrogel scaffold over long‐term tumoroid ...
Elizaveta Gusarova, Fatemeh Ahmadi, Jennifer Cruickshank, Zheyuan Miao, Mariia Moshkova, Iuliia Pilipenko, David W. Cescon, Eugenia Kumacheva   +7 more
wiley   +1 more source

A computer solution for the dynamic load, lubricant film thickness and surface temperatures in spiral bevel gears [PDF]

A complete analysis of spiral bevel gear sets is presented. The gear profile is described by the movements of the cutting tools. The contact patterns of the rigid body gears are investigated. The tooth dynamic force is studied by combining the effects of
Chao, H. C., Cheng, H. S.
core   +1 more source

3D‐Printed Titanium Implants with Bioactive Peptide‐Polysaccharide Scaffolds for Personalized Bone Reconstruction

Advanced Healthcare Materials, EarlyView.
Porous 3D‐printed titanium implants are made bioactive by integration with a supramolecular peptide‐hyaluronic acid nanofibrillar scaffold, without the addition of exogenous cells or growth factors. Uniform filling of the implant architecture promotes vascularized, spatially homogeneous bone regeneration, significantly enhancing osteogenesis throughout
Noam Rattner, Vladimir Perlis, Eran Golden, Ariel Pokhojaev, Rachel Sarig, Itzhak Binderman, Michal Halperin‐Sternfeld, Solomon Dadia, Lihi Adler‐Abramovich   +8 more
wiley   +1 more source

Injectable Stimuli‐Responsive Amphiphilic Hydrogel for Rapid Hemostasis, Robust Tissue Adhesion, and Controlled Drug Delivery in Trauma and Surgical Care

Advanced Healthcare Materials, EarlyView.
Fast‐acting hydrogel seals bleeding wounds as the illustrated injectable, pH‐responsive network rapidly gels in situ to stop hemorrhage, adhere strongly to wet tissue, and release antibiotics in a controlled, pH‐dependent manner. The material withstands high pressures, shows excellent biocompatibility, and degrades safely, offering a versatile platform
Arvind K. Singh Chandel, Runali Patil, Abrar Ali Khan, Deeksha Pandit, Kaushik Chatterjee, Maurice N. Collins   +5 more
wiley   +1 more source