Results 81 to 90 of about 4,151 (244)

Bio-inspired Miniature Suction Cups Actuated by Shape Memory Alloy

International Journal of Advanced Robotic Systems, 2009
Wall climbing robots using negative pressure suction always employ air pumps which have great noise and large volume. Two prototypes of bio-inspired miniature suction cup actuated by shape memory alloy (SMA) are designed based on studying characteristics
Hu Bing-Shan, Wang Li-Wen, Fu Zhuang, Zhao Yan-zheng   +3 more
doaj   +1 more source

Posterior Cortical Atrophy in the Asia‐Pacific: A Report From the PCA Asian Workgroup

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Posterior Cortical Atrophy (PCA) is a distinct dementia syndrome primarily affecting spatial abilities and visual processing. It is associated with degeneration in the posterior part of the brain. PCA is subclassified into PCA‐pure and PCA‐plus syndromes based on consensus criteria.
Yuttachai Likitjaroen, Ya‐Ting Chang, Levinia Lim, Pai‐Yi Chiu, Jung‐Lung Hsu, SangYun Kim, Wataru Narita, Na Young Ryoo, Kyoko Suzuki, Nagaendran Kandiah, Sebastian Crutch, Ming‐Chyi Pai   +11 more
wiley   +1 more source

Two-way Shape Memory Effect in a Cu-13 wt.%Al-4 wt.%Ni Shape Memory Alloy by the Thermo - Mechanical Cycling Method

The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2007
A Cu - 13 %wt Al 4 %wt Ni polycrystalline shape memory alloy has studied with a thermo mechanical cycling method. The two – way shape memory effect (TWSME) was obtained bending the alloy around a cylinder mold and by using a constrained heating – cooling
Carmela GURAU, Gheorghe GURAU, Petrică ALEXANDRU, Nicolae CĂNĂNĂU   +3 more
doaj  

Functional properties of NiTi shape memory alloys and their application development

Cailiao gongcheng
As a sort of intelligent material, NiTi shape memory alloys (SMAs) are widely used in the fields of aerospace, medical devices and construction due to their functional properties such as excellent superelasticity, shape memory effect and biocompatibility.
YANG Chao, LIAO Yuxin, LU Haizhou, YAN An, CAI Weisi, LI Pengxu   +5 more
doaj   +1 more source

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang, Huiying Wang, Zhizheng Zhuo, Ai Guo, Ke Lv, Decai Tian, Chao Chai, Yunyun Duan, Shuang Xia   +8 more
wiley   +1 more source

Two-way shape memory polymer

, 2015
Shape memory polymers (SMPs) have attracted numerous research efforts due to their manufacturing and highly tailorable thermo-mechanical properties. SMPs are able to temporarily program and fix to a non-equilibrium shape and are capable of recovering to ...
Chng, Wei Kee
core  

Two-way shape memory-clips for colonic anastomosis

, 2008
The compression anastomosis clip (CAC) is an elliptic shape double-ring device produced from nickeltitanium shape memory alloy. Until now the CAC works basing on the one-way shape memory effect.
Kuśnierz, K., Lampe, P., Zhavoronkov, D., Lekston, Z., Z. Lekston, H. Morawiec, K. Kuśnierz, D. Zhavoronkov, Morawiec, H., P. Lampe   +9 more
core   +1 more source

CSF Monoamine Metabolites and Cognitive Trajectory in Early Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Imaging and postmortem studies indicate that abnormalities in monoaminergic neurotransmission contribute to cognitive impairment in Parkinson's disease (PD). However, it remains uncertain if cerebrospinal fluid (CSF) monoamine metabolites can serve as biomarkers of cognitive decline in early PD.
Jing‐Yu Shao, Rong Li, Yu‐Xiang Jiao, Kai Ma, Hong‐Qi Yang, Zheng‐Yu Sun, Jie‐Wen Zhang, Shuai Chen   +7 more
wiley   +1 more source

Characteristics Analysis and Testing of SMA Spring Actuator

Advances in Materials Science and Engineering, 2013
The biasing form two-way shape memory alloy (SMA) actuator composed of SMA spring and steel spring is analyzed. Based on the force equilibrium equation, the relationship between load capacity of SMA spring and geometric parameters is established.
Jianzuo Ma, Haolei Huang, Jin Huang
doaj   +1 more source

Elevated Connectivity During Language Processing Is Associated With Cognitive Performance in SeLECTS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Self‐Limited Epilepsy with Centrotemporal Spikes (SeLECTS) is associated with language impairments despite seizures originating in the motor cortex, suggesting aberrant cross‐network interactions. Here we tested whether functional connectivity in SeLECTS during language tasks predicts language performance.
Wendy Qi, Katharine Lee, Kerry C. Nix, Miguel Menchaca, Xiwei Shé, Lorelei Santa Maria, Wei Wu, Zihuai He, Fiona M. Baumer   +8 more
wiley   +1 more source