Results 41 to 50 of about 6,355,244 (249)

A Thickness‐Invariant Origami Robot With Integrated Actuation and Multimodal Locomotion

Advanced Science, EarlyView.
A thickness‐invariant variation on the Yoshimura origami pattern is used as the basis of a robot, allowing power, actuation, and control systems to be embedded within the thickened panels of the pattern. The robot uses multiple kinematic branches to achieve distinct modes of locomotion, such as walking, running, galloping, and turning. ABSTRACT Origami
Davis Wing, Sam Bridge, William Bowler, Nathan Usevitch, Larry Howell   +4 more
wiley   +1 more source

Effect of sterilization by gamma radiation on nano-mechanical properties of teeth [PDF]

, 2008
NOTICE: this is the author’s version of a work that was accepted for publication in Dental Materials. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms ...
Marshall, GW, Kuniko Saeki, Grayson W. Marshall, Marshall, SJ, Sally J. Marshall, Saeki, K, Delia S. Brauer, Joan F. Hilton, Brauer, DS, Hilton, JF   +9 more
core   +1 more source

Arrayed Magnetic Accelerator Synergistically Enhances Orthodontic Tooth Movement via Microtubule Assembly‐Mediated Periodontal Remodeling

Advanced Science, EarlyView.
Mechanical orthodontic treatment for malocclusion is limited by slow remodeling and risks due to poor biomechanical sensing. This study shows that static magnetic fields (SMFs) enhance mechanical sensation in periodontal ligament cells, promoting inflammation and osteoclast activity.
Yiling Lou, Jiwei Sun, Peng Chen, Caihong Mao, Junyuan Zhang, Haoqi Lei, Xiaoqing Han, Yaxuan Zhang, Yuheng Jiang, Yulin Jia, Bin Su, Lili Chen   +11 more
wiley   +1 more source

Developmental Defects of Enamel in Primary Teeth and Association with Early Life Course Events: A Study of 6--36 Month old Children in Manyara, Tanzania. [PDF]

, 2013
Children with low birth weight show an increased prevalence of developmental defects of enamel in the primary dentition that subsequently may predispose to early childhood caries (ECC).Focusing 6--36 months old, the purpose of this study was to assess ...
Ray Masumo, Asgeir Bårdsen, Bårdsen, Asgeir, Anne Nordrehaug Åstrøm, Masumo, Ray, Astrøm, Anne Nordrehaug   +5 more
core   +2 more sources

Customized Itinerant Frequency Combs by Cascaded Nonlinear Effects

Advanced Science, EarlyView.
A cascaded third‐order nonlinear system generates an itinerant frequency comb with the comb center frequency decoupled from the cavity resonance. This enables arbitrary spectral scaling, flexible spacing adjustments, and real‐time central‐frequency engineering, allowing comb splicing and subdivision. The resulting versatility and reconfigurability open
Yi Wang, Yulong Liu, Zeji Li, Wenyan Wang, Sihan Wang, Cheng Wang, Jingwei Zhou, Jie‐Qiao Liao, Tiefu Li   +8 more
wiley   +1 more source

Application of Micro Teeth Mark Slips in the Packer

Shiyou jixie, 2016
The packer anchoring mechanism has shortcomings in the structure and slip anchoring performance, especially that the slips will cause great damage to the surface of the casing, which not only affects the packer performance, but also could result in ...
Liu Yuming, Hao Zhouzheng, Ma Yingming, Wang Yanxue, Zhao Haibin   +4 more
doaj  

Design parameters effect to magnetic flux distribution of the reluctance actuator [PDF]

FME Transactions, 2020
The paper presents an analysis of reluctance actuator for speckle reducing in laser based projectors, head-up displays, metrology and 3D scanning units to improve the quality of the generated images by a moving diffuser.
Popović Aleksandar, Bojović Božica, Suter Marcel, Niederer David   +3 more
doaj  

Consequences of Tooth Loss on Oral Function and need for Replacement of Missing Teeth Among Patients Attending Muhimbili Dental Clinic [PDF]

, 2011
Tanzanian oral health services constitute mainly of tooth extractions. Consequently, individuals susceptible to dental caries and periodontal diseases will have a substantial number of missing teeth, which can affect oral function.
Quaker, Andrewleon S
core  

Evolutionary programming with q-Gaussian mutation for dynamic optimization problems [PDF]

, 2008
This article is posted here with permission from IEEE - Copyright @ 2008 IEEEThe use of evolutionary programming algorithms with self-adaptation of the mutation distribution for dynamic optimization problems is investigated in this paper. In the proposed
Yang, S, Tinos, Renato, Shengxiang Yang, Tinos, R, Renato Tinos, Yang, Shengxiang   +5 more
core   +1 more source

Balancing Exploration and Exploitation Through a Sequential Hybrid of Roach Infestation and Mayfly Algorithms for Constrained Engineering Design Optimization

AI &Innovation, EarlyView.
ABSTRACT Maintaining an effective balance between exploration and exploitation is essential during optimization processes, from mathematical functions to more complex problems such as constrained engineering design optimization, particularly when addressing highly nonlinear issues with numerous local optima and strict feasibility requirements.
Enrique Lizárraga, Fevrier Valdez, Oscar Castillo, Patricia Melin   +3 more
wiley   +1 more source