Results 131 to 140 of about 79,428 (365)

Modeling and Simulation of the Quadrtor Delivery System [PDF]

arXiv, 2019
Unmanned Aerial Vehicle (UAV) quadrotor is a UAV with four rotors. The quadrotor control is a difficult task because the four-wheel system is inefficient. The purpose of this paper is to provide specifications and implement a separate quad system that integrates data from the camera and IMU (Inertial Measurement Unit) to allow high -resolution optical ...
arxiv  

Modular Stimuli‐Responsive Valves for Pneumatic Soft Robots

Advanced Intelligent Systems, EarlyView.
Modular stimuli‐responsive valves, based on responsive materials (i.e., liquid crystal elastomers and hydrogels) and mechanical mechanisms, can autonomously regulate airflow in the presence of multiple environmental stimuli, such as light and water.
Qiguang He, Rui Yin, Yucong Hua, Hang Shu, Xiaoheng Zhu, A. B. M. Tahidul Haque, Samuele Ferracin, Saheli Patel, Weijian Jiao, Jordan R. Raney   +9 more
wiley   +1 more source

Reducing Photic Phenomena and Retinal Background Illumination by Using an Intraocular Lens

Innovative Biosystems and Bioengineering, 2020
Background. After implantation of monofocal intraocular lenses (IOLs), the risk of developing light phenomena is 9%, and after implantation of multifocal IOLs the one is 41%. These effects not only cause discomfort, but also poor image quality.
Alexander Polischuk, Vasily Kozyar, Dmytro Zhaboedov   +2 more
doaj   +1 more source

Design and fabrication of chemically robust three-dimensional microfluidic valves [PDF]

, 2007
A current problem in microfluidics is that poly(dimethylsiloxane) (PDMS), used to fabricate many microfluidic devices, is not compatible with most organic solvents. Fluorinated compounds are more chemically robust than PDMS but, historically, it has been
Chen, Yan, Garcia, Erika, Gomez, Frank A., Hanrahan, Grady, Maltezos, George, Scherer, Axel, van Dam, R. Michael, Vyawhare, Saurabh   +7 more
core   +2 more sources

Developable Ruled Surfaces Generated by the Curvature Axis of a Curve [PDF]

Ta\c{s}, F., & Ziatdinov, R. (2023). Developable Ruled Surfaces Generated by the Curvature Axis of a Curve. Axioms, 12(12), 1090
Ruled surfaces play an important role in various types of design, architecture, manufacturing, art, and sculpture. They can be created in a variety of ways, which is a topic that has been the subject of much discussion in mathematics and engineering journals.
arxiv   +1 more source

Gear‐Switch‐Integrated Dual‐Mode Three‐Wheeled Exoskeleton that Empowers Cyborg Insects with Enhanced Open‐Loop Locomotion Control Precision and Load Capacity

Advanced Intelligent Systems, EarlyView.
Cyborg insects’ low open‐loop control precision and limited sensor payload hinder applications. This article introduces an exoskeleton that improves motion precision and payload capacity. With a 7.2 cm × 14 cm size, it enhances load capacity to over 400 g and enables high‐precision movement without feedback control, expanding application scenarios for ...
Rui Li, Zezhong Zhang, Duc Long Le, Chen Lv, Sun Woh Lye, Hirotaka Sato   +5 more
wiley   +1 more source

Invited Article: CO_2 laser production of fused silica fibers for use in interferometric gravitational wave detector mirror suspensions [PDF]

, 2011
In 2000 the first mirror suspensions to use a quasi-monolithic final stage were installed at the GEO600 detector site outside Hannover, pioneering the use of fused silica suspension fibers in long baseline interferometric detectors to reduce suspension ...
Barton, M. A., Bell, A., Cagnoli, G., Cantley, C. A., Crooks, D. R. M., Cumming, A., Grant, A., Hammond, G. D., Harry, G. M., Heptonstall, A., Hough, J., Jones, R., Kelley, D., Kumar, R., Martin, I. W., Robertson, N. A., Rowan, S., Strain, K. A., Tokmakov, K., van Veggel, M.   +19 more
core   +2 more sources

DETERMINING THE POSITIONS OF THE ELEMENTS FOR THE 3-2-1 PRINCIPLE OF LOCATION IN A SOLIDWORKS ADD-IN

ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, 2019
This paper presents the methodology behind the positioning of modular fixtures (for the 3-2-1 principle in particular) in a CAFD application (add-in) for SolidWorks.
Oleg Mihaylov
semanticscholar   +1 more source

Investigating Social Immunity in Swarming Locusts via a Triple Animal–Robot–Pathogen Hybrid Interaction

Advanced Intelligent Systems, EarlyView.
This study explores social immunity in gregarious locusts using a groundbreaking animal–robot–pathogen interaction model. By comparing locust responses to biomimetic agents mimicking healthy and infected individuals, significant behavioral changes are revealed.
Donato Romano, Cesare Stefanini
wiley   +1 more source

Journey of water in pine cones [PDF]

, 2019
Pine cones fold their scales when it rains to prevent seeds from short-distance dispersal. Given that the scales of pine cones consist of nothing but dead cells, this folding motion is evidently related to structural changes.
Kim, H, Kim, K, Lee, SJ, Lim, JH, Seo, SJ, Song, K, Yeom, E   +6 more
core   +1 more source