Results 61 to 70 of about 154,153 (296)

A novel haptic model and environment for maxillofacial surgical operation planning and manipulation [PDF]

, 2012
This paper presents a practical method and a new haptic model to support manipulations of bones and their segments during the planning of a surgical operation in a virtual environment using a haptic interface. To perform an effective dental surgery it is
Arnez, Victor, Corney, Jonathan, Govea-Valladares, E., Hernandez, Ernesto, Li, Youhua, Lim, T., Villela, V., Yan, Xiu   +7 more
core   +1 more source

Patterning the Void: Combining L‐Systems with Archimedean Tessellations as a Perspective for Tissue Engineering Scaffolds

Advanced Functional Materials, EarlyView.
This study introduces a novel multi‐scale scaffold design using L‐fractals arranged in Archimedean tessellations for tissue regeneration. Despite similar porosity, tiles display vastly different tensile responses (1–100 MPa) and deformation modes. In vitro experiments with hMSCs show geometry‐dependent growth and activity. Over 55 000 tile combinations
Maria Kalogeropoulou, Kenny A. van Kampen, Pierpaolo Fucile, Carlos Mota, Lorenzo Moroni   +4 more
wiley   +1 more source

齿根裂纹与轮齿啮合刚度关联规律研究

Jixie chuandong, 2014
Gear mesh stiffness is the foundation of the study on gear dynamics.Taking the spur gear as research object,the finite element model of the spur gear with root crack is established,and the accurate calculation method of gear mesh stiffness is proposed ...
唐进元, 王志伟, 伊洪丽, 陈思雨   +3 more
doaj  

A convenient scheme for coupling a finite element curvilinear mesh to a finite element voxel mesh: application to the heart

BioMedical Engineering OnLine, 2006
Background In some cases, it may be necessary to combine distinct finite element meshes into a single system. The present work describes a scheme for coupling a finite element mesh, which may have curvilinear elements, to a voxel based finite element ...
Hopenfeld Bruce
doaj   +1 more source

Clean‐Limit 2D Superconductivity in a Thick Exfoliated Kagome Film

Advanced Functional Materials, EarlyView.
This study reports clean‐limit 2D superconductivity in a thick kagome system, analogous to the 3D case. It observes a drop in superfluid stiffness near the superconducting transition and a cusp‐like feature in the angular dependence of the upper critical field.
Fei Sun, Andrea Capa Salinas, Stephen D. Wilson, Haijing Zhang   +3 more
wiley   +1 more source

Calculation of Time-Varying Mesh Stiffness of Internal Mesh Transmission and Analysis of Influencing Factors

Applied Sciences
Time-varying mesh stiffness (TVMS) of the internal mesh transmission is a significant source of excitation that causes vibration and noise in planetary gear systems, and is also an important parameter in dynamics analysis.
Jubo Li, Hengbo Zhao, Yanbo Ren, Jianjun Yang   +3 more
doaj   +1 more source

Gear tooth mesh stiffness: A comparison of calculation approaches

Mechanism and Machine Theory, 2016
Abstract This work compares spur gear tooth mesh stiffness calculations using two approaches. The first is a common approach from the literature that calculates the mesh stiffness by dividing the mesh force by the mesh deflection, which we call the average slope method.
Christopher G. Cooley, Chunguang Liu, Xiang Dai, Robert G. Parker   +3 more
openaire   +2 more sources

Modeling of Polymer Clay Nanocomposite for a Multiscale Approach

, 2008
The mechanical property enhancement of polymer reinforced with nano-thin clay platelets (of high aspect ratio) is associated with a high polymer-filler interfacial area per unit volume.
Arai, Battistella, Becker, Becker, Brougthon, Chen, Chia, Dorigato, Dorigato, Dorigato, Evans, Fermeglia, Fermeglia, Fermeglia, Fiedler, Fischer, Fornes, Frankland, Giannopoulos, Gou, Gou, Green, Guzmàn de Villoria, Ha, Hu, Lange, Lau, Le Pluart, Lee, Li, Liao, Lordi, Luo, Marco Salviato, Marino Quaresimin, Michele Zappalorto, Miyagawa, Mo-lin, Ng, Odegard, Odegard, Odegard, Pipes, Qian, Quaresimin, Ray, Salviato, Scocchi, Thostenson, Thostenson, Toth, Toth, Tsai, VanderHart, Wetzel, Wetzel, Wichmann, Wichmann, Wong, Yokozeki, Yu, Zammarano, Zappalorto, Zappalorto, Zax, Zeng, Zhang, Zhao   +67 more
core   +1 more source

Biomimetic Iridescent Skin: Robust Prototissues Spontaneously Assembled from Photonic Protocells

Advanced Functional Materials, EarlyView.
Uniform nanoparticles are induced to form arrays (photonic crystals) in the cores of biopolymer capsules, endowing these ‘protocells’ with structural color. These protocells are then assembled into large self‐standing objects, i.e., prototissues, with robust mechanical properties as well as iridescent optical properties.
Medha Rath, Briahnah Streeter, Satyam Srivastava, Jemma Wood, William E. Bentley, Taylor J. Woehl, Srinivasa R. Raghavan   +6 more
wiley   +1 more source

Optimization of bias modification and dynamic behavior analysis of helical gear system

Advances in Mechanical Engineering, 2017
A generalized finite element dynamic model of helical gear system considering time-varying mesh stiffness and loaded composite mesh error is developed. Bias modification is introduced into this model, and the corresponding time-varying mesh stiffness and
Bing Yuan, Shan Chang, Geng Liu, Lehao Chang, Lan Liu   +4 more
doaj   +1 more source