Results 61 to 70 of about 323,991 (387)

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

Advanced Engineering Materials, EarlyView.
This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian, Frédéric Demoly, Mohammad Lakhi, Bernard Rolfe, Mahdi Bodaghi   +4 more
wiley   +1 more source

Payload for Contact Inspection Tasks with UAV Systems

Sensors, 2019
This paper presents a payload designed to perform semi-autonomous contact inspection tasks without any type of positioning system external to the UAV, such as a global navigation satellite system (GNSS) or motion capture system, making possible ...
L. M. González-deSantos, J. Martínez-Sánchez, H. González-Jorge, M. Ribeiro, J. B. de Sousa, P. Arias   +5 more
doaj   +1 more source

STS payload ground handling mechanism at John F. Kennedy Space Center [PDF]

, 1985
The payload ground handling mechanism (PGHM), which lifts payloads out of the payload canister that brings them to the launch pad, is described. The PGHM then loads the payloads into the orbiter through the open payload bay doors.
Cassisi, V., Tatem, B. C., Jr.
core   +1 more source

Spacecraft payload optimization

Eos, Transactions American Geophysical Union, 1976
Many factors are considered in the selection and integration of scientific experiments for spacecraft payloads. Ideally, the payload should provide maximum scientific value subject to the finite limitations of cost, telemetry, power, weight, and volume imposed by the scope of the mission.
R. L. Engel, H. B. Liemohn, W. A. Reardon   +2 more
openaire   +2 more sources

Acoustic trapping of microbubbles in complex environments and controlled payload release

Proceedings of the National Academy of Sciences of the United States of America, 2020
Significance Remote positioning and activation of drug-loaded microparticles in vivo are a central pursuit of nanomedicine. Optical, magnetic, and acoustic fields have been used to position and sort microparticles in vitro, but the translation in vivo ...
Diego Baresch, V. Garbin
semanticscholar   +1 more source

Bioorthogonal Engineering of Cellular Microenvironments Using Isonitrile Ligations

Advanced Functional Materials, EarlyView.
Highly selective chemistries are required for fabrication and post‐cross–linking modification of cell‐encapsulating hydrogels used in tissue engineering applications. Isonitrile ligation reactions represent a promising class of bioorthogonal chemistries for engineering hydrogel‐based cellular microenvironments. Isonitrile‐based hydrogels are stable and
Ping Zhou, Lauren Brown, Christopher M. Madl   +2 more
wiley   +1 more source

The NanoMagSat magnetometry payload

, 2022
Taking advantage from the lessons learnt on the Swarm's Absolute Scalar Magnetometers (ASM), a new generation of optically pumped helium scalar magnetometer also delivering calibrated vector measurements is currently being developed for the NanoMagSat satellites. A very significant miniaturization has been made possible for both the sensor head and the
Leger, Jean-Michel, Bertrand, Francois, Boness, Axel, Fourcault, William, Jager, Thomas, Josselin, Vincent, Paulet, Jérôme, Hulot, Gauthier   +7 more
openaire   +1 more source

Versatile Cell Penetrating Peptide for Multimodal CRISPR Gene Editing in Primary Stem Cells

Advanced Functional Materials, EarlyView.
CRISPR machinery in diverse molecular formats (DNA, RNA, and ribonucleic protein) is complexed into nanoparticles with the cell‐friendly arginine‐alanine‐leucine‐alanine (RALA) cell‐penetrating peptide. Nanoparticles are delivered to primary mesenchymal stem cells ex vivo or locally in vivo to facilitate multimodal CRISPR gene editing. This RALA‐CRISPR
Joshua P. Graham, Jose Gabriel Castro, Lisette C. Werba, Joseph Amitrano, Luke Fardone, Kevin P. Francis, Anand Ramamurthi, Michael J. Layden, Helen O. McCarthy, Tomas Gonzalez‐Fernandez   +9 more
wiley   +1 more source

Transient Stiffness Patterning in Hydrogels Driven by Dissipative Mechanochemical Coupling

Advanced Functional Materials, EarlyView.
Force‐induced disulfide bond rupture in a polymer‐based hydrogel, coupled with chemical or electrochemical reoxidation, leads to the transient modulation of the hydrogel's stiffness properties. High spatiotemporal control is achieved by this dissipative process, enabling the development of out‐of‐equilibrium stiffness patterns and transient, dose ...
Roberto Baretta, Maria F. Pantano, Marco Frasconi   +2 more
wiley   +1 more source

Research on factors influencing the performance of electric vehicles and its impacts

Science and Technology for Energy Transition
Optimizing the forces acting on Electric Vehicles (EVs) is crucial for enhancing performance and energy efficiency, and it is also a key to advancing sustainable transportation.
Dasari Kiran Sai, Mopidevi Subba Rao, Basappa Subba Reddy   +2 more
doaj   +1 more source