Results 41 to 50 of about 36,319 (263)
Cell therapies typically rely on cold‐chain logistics and cryopreservation, limiting access and compromising cell quality. Here, a dual‐chamber device separates an oxygen‐supplying chamber from a hyaluronic acid cargo chamber, sustaining oxygen delivery for over 70 h and enabling ambient‐temperature shipment.
Daniel A. Domingo‐Lopez +9 more
wiley +1 more source
Inspired by metal‐free carbonic anhydrases (CAs) that achieve efficient catalysis without metal cofactors, we herein report a sequence‐defined supramolecular peptoid platform that mimics metal‐free CAs and exhibits hydrolytic activity via a supramolecular assembly‐mediated proton‐transfer mechanism.
Progyateg Chakma +8 more
wiley +1 more source
Design Considerations for Autocalibrations of Wide-Band ΔΣ Fractional-N PLL Synthesizers
Autocalibration of VCO frequency and loop gain is an essential process in PLL frequency synthesizers. In a wide tuning-range fractional-N PLL frequency synthesizer, high-speed and high-precision automatic calibration is especially important for ...
Jaewook Shin, Hyunchol Shin
doaj +1 more source
Online Camera-Gimbal-Odometry System Extrinsic Calibration for Fixed-Wing UAV Swarms
Unmanned aerial vehicle (UAV) swarms show a broad application prospect in the future. For most individuals of UAV swarms, their perception systems consist of onboard camera, gimbal and odometry.
Dengqing Tang +2 more
doaj +1 more source
Uncertainty Quantification and Simulation of Wind-Tunnel-Informed Stochastic Wind Loads
The simulation of stochastic wind loads is necessary for many applications in wind engineering. The proper-orthogonal-decomposition-(POD)-based spectral representation method is a popular approach used for this purpose, due to its computational ...
Thays G. A. Duarte +3 more
doaj +1 more source
Auto-calibration of cylindrical multi-projector systems [PDF]
In this paper we present a novel technique to calibrate multiple casually aligned projectors on a fiducial-free cylindrical curved surface using a single camera. We impose two priors to the cylindrical display: (a) cylinder is a vertically extruded surface; and (b) the aspect ratio of the rectangle formed by the four corners of the screen is known ...
Behzad Sajadi, Aditi Majumder
openaire +1 more source
Versatile guanosine‐quadruplex (GQ) hydrogels are developed as dynamic biomatrices for cell culture. These scaffolds are fabricated under mild aqueous conditions, present improved stability, tunable mechanical properties within physiological ranges; fibrillar, porous microstructure, ion conductivity, and cytocompatibility.
Neha Thakur +10 more
wiley +1 more source
Temperature-Automated Calibration Methods for a Large-Area Blackbody Radiation Source
High-precision temperature control of large-area blackbodies has a pivotal role in temperature calibration and thermal imaging correction. Meanwhile, it is necessary to correct the temperature difference between the radiating (surface of use) and back ...
Wenhang Yang +12 more
doaj +1 more source
Radiochromic films are convenient dosimeters for quality assurance of biological X-ray irradiators. However, their calibration curves (optical density vs. radiation dose) can have relatively short lifespans due to non-catalytic auto-development.
P.M. Chan +4 more
doaj +1 more source
Engineered red blood cell‐derived extracellular vesicles (eRBCEVs) are synthesized via controlled microfluidic assembly from native RBC lipids, enabling tunable encapsulation of proteins, nucleic acids, nanoparticles, and viral vectors. The platform demonstrates reproducible nanoscale architecture, preserved membrane composition, and functional cargo ...
Chiranth K. Nagaraj +23 more
wiley +1 more source

