3D printed CNT/TPU triboelectric nanogenerator for load monitoring of total knee replacement [0.03%]
用于膝关节置换承重监测的3D打印CNT/TPU摩擦电纳米发电机
Osama Abdalla,Mahmood Chahari,Milad Azami et al.
Osama Abdalla et al.
This study presents the development and characterization of a novel triboelectric nanogenerator (TENG) designed as a self-powered sensor for load monitoring in total knee replacement (TKR) implants. The triboelectric layers comprise a 3D-pr...
On-demand fabrication of piezoelectric sensors for in-space structural health monitoring [0.03%]
在轨结构健康监测的压电传感按需制造技术研究
Amanda White,Isaac Little,Anastasiya Artyuk et al.
Amanda White et al.
Inflatable structures, promising for future deep space exploration missions, are vulnerable to damage from micrometeoroid and orbital debris impacts. Polyvinylidene fluoride-trifluoroethylene (PVDF-trFE) is a flexible, biocompatible, and ch...
Shape memory alloy tube actuators inherently enable internal fluidic cooling for a robotic finger under force control [0.03%]
形状记忆合金管致动器可使机器人手指在力控制下实现内部流体冷却
Craig J Ades,Savas Dilibal,Erik D Engeberg
Craig J Ades
This paper presents the design, control and evaluation of a novel robotic finger actuated by shape memory alloy (SMA) tubes which intrinsically afford an internal conduit for fluidic cooling. The SMA tubes are thennomechanically programmed ...
Hybrid triboelectric-piezoelectric nanogenerator for long-term load monitoring in total knee replacements [0.03%]
用于全膝关节置换长期载荷监测的摩擦电-压电纳米发电机
Mahmood Chahari,Emre Salman,Milutin Stanacevic et al.
Mahmood Chahari et al.
A self-powered and durable pressure sensor for large-scale pressure detection on the knee implant would be highly advantageous for designing long-lasting and reliable knee implants as well as obtaining information about knee function after ...
Elastic Shape Morphing of Ultralight Structures by Programmable Assembly [0.03%]
可通过编程组装实现超轻结构的弹性形状变换技术
Nicholas B Cramer,Daniel W Cellucci,Olivia B Formoso et al.
Nicholas B Cramer et al.
Ultralight materials present an opportunity to dramatically increase the efficiency of load-bearing aerostructures. To date, however, these ultralight materials have generally been confined to the laboratory bench-top, due to dimensional co...
Sang H Choi,Adam J Duzik,Hyun-Jung Kim et al.
Sang H Choi et al.
The increasing requirements of hyperspectral imaging optics, electro/photo-chromic materials, negative refractive index metamaterial optics, and miniaturized optical components from micro-scale to quantum-scale optics have all contributed t...
Design, Modeling and Characterization of A Novel Meso-Scale SMA-Actuated Torsion Actuator [0.03%]
一种新型介尺度形状记忆合金扭力执行器的设计、建模与表征
Jun Sheng,Jaydev P Desai
Jun Sheng
This paper presents our work on design, modeling and characterization of a novel shape memory alloy (SMA) actuated torsion actuator for meso-scale robots. Development of a miniature torsion actuator is challenging, but it can enhance the ag...
Alwathiqbellah Ibrahim,Manav Jain,Emre Salman et al.
Alwathiqbellah Ibrahim et al.
Although the number of total knee replacement (TKR) surgeries is growing rapidly, functionality and pain-reduction outcomes remain unsatisfactory for many patients. Continual monitoring of knee loads after surgery offers the potential to im...
Core-free rolled actuators for Braille displays using P(VDF-TrFE-CFE) [0.03%]
用于Braille显示器的无芯卷绕执行器(PVDF-TrFE-CFE)
Thomas Levard,Paul J Diglio,Sheng-Guo Lu et al.
Thomas Levard et al.
Refreshable Braille displays require many small diameter actuators to move the pins. The electrostrictive P(VDF-TrFE-CFE) terpolymer can provide the high strain and actuation force under modest electric fields that are required for this app...
Constant-torque thermal cycling and two-way shape memory effect in Ni50.3Ti29.7Hf20 torque tubes [0.03%]
Ni50.3Ti29.7Hf20扭管的恒力矩热循环及双向形状记忆效应
O Benafan,D J Gaydosh
O Benafan
Ni-rich Ni50.3Ti29.7Hf20 (at.%) high-temperature shape memory alloy (SMA) tubes were thermomechanically cycled under constant torques. Four loading configurations were examined that consisted of a series of ascending stresses (low-to-high s...