scholarly journals Design and Experimental Evaluation of a Single-Actuator Continuous Hopping Robot Using the Geared Symmetric Multi-Bar Mechanism

2018 ◽  
Vol 9 (1) ◽  
pp. 13 ◽  
Author(s):  
Long Bai ◽  
Fan Zheng ◽  
Xiaohong Chen ◽  
Yuanxi Sun ◽  
Junzhan Hou
Keyword(s):  
Performance Evaluation ◽  
Energy Storage ◽  
Experimental Evaluation ◽  
State Of The Art ◽  
Energy Conversion Efficiency ◽  
Servo Motor ◽  
Hopping Robot ◽  
Closed Chain ◽  
Hopping Robots ◽  
And Performance

This paper proposes the design and performance evaluation of a miniaturized continuous hopping robot RHop for unstructured terrain. The hopping mechanism of RHop is realized by an optimized geared symmetric closed-chain multi-bar mechanism that is transformed from the eight-bar mechanism, and the actuator of RHop is realized by a servo motor and the clockwork spring, thereby enabling RHop to realize continuous hopping while its motor rotates continuously only in one direction. Comparative simulations and experiments are conducted for RHop. The results show that RHop can realize better continuous hopping performance, as well as the improvement of energy conversion efficiency from 70.98% to 76.29% when the clockwork spring is applied in the actuator. In addition, comparisons with some state-of-the-art hopping robots are conducted, and the normalized results show that RHop has a better energy storage speed.

Design and performance evaluation of a dual-circuit thermal energy storage module for air conditioners

2021 ◽  
Vol 292 ◽  
pp. 116843
Author(s):  
Anurag Goyal ◽  
Eric Kozubal ◽  
Jason Woods ◽  
Malek Nofal ◽  
Said Al-Hallaj
Keyword(s):  
Performance Evaluation ◽  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Air Conditioners ◽  
And Performance

Grounding system models for computational reimbursement analysis due to electrical damage: state of the art, proposal and performance evaluation

2015 ◽  
Vol 26 (2) ◽  
pp. 384-397
Author(s):  
Afonso B. Almeida Junior ◽  
Paulo H. O. Rezende ◽  
Isaque N. Gondim ◽  
Marcus V. B. Mendonça ◽  
Jose C. Oliveira ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
State Of The Art ◽  
Damage State ◽  
Grounding System ◽  
System Models ◽  
And Performance

scholarly journals Nanoenabled Bioseparations: Current Developments and Future Prospects

2019 ◽  
Vol 2019 ◽  
pp. 1-15 ◽  
Author(s):  
Sherif Ashraf Fahmy ◽  
Mohamad Alawak ◽  
Jana Brüßler ◽  
Udo Bakowsky ◽  
Mayyada M. H. El Sayed
Keyword(s):  
Carbon Nanotubes ◽  
Amino Acids ◽  
Performance Evaluation ◽  
State Of The Art ◽  
Wide Spectrum ◽  
Nanoporous Membranes ◽  
Future Prospects ◽  
Electrospun Nanofiber ◽  
Nanofiber Membranes ◽  
And Performance

The use of nanomaterials in bioseparations has been recently introduced to overcome the drawbacks of the conventional methods. Different forms of nanomaterials, particularly magnetic nanoparticles (MNPs), carbon nanotubes (CNTs), casted nanoporous membranes, and electrospun nanofiber membranes were utilized in biological separation for the aim of production of different biomolecules such as proteins, amino acids, nucleic acids, and enzymes. This paper critically reviews the state-of-the-art efforts undertaken in this regard, with emphasis on the synthesis and performance evaluation of each nanoform. Challenges and future prospects in developing nanoenabled bioseparations are also discussed, for the purpose of highlighting potential advances in the synthesis and fabrication of novel nanomaterials as well as in the design of efficient nanoenabled processes for separating a wide spectrum of biomolecules.

Sign in / Sign up

Export Citation Format

Share Document