Results 111 to 120 of about 33,313 (293)

Rubidium spacecraft atomic timing system Final report [PDF]

Rubidium 87 atomic time and frequency reference system for manned space ...
Frank, R. W., Held, J. C., Mortenson, R. A., Riley, W. J., Stratemeyer, H. P., Wilhelm, J. E.   +5 more
core   +1 more source

Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges

Advanced Functional Materials, EarlyView.
Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley   +1 more source

Battery charge-discharge controller [PDF]

, 1969
Charge-discharge controller contains punched-tape programmer capable of programming 305 discrete steps in the battery load. The indicating instrumentation includes meters for ampere-hours, watt-hours, voltage, current, and internal temperature and ...
Ciccanti, A. D.
core   +1 more source

Beyond the Edge: Charge‐Transfer Excitons in Organic Donor‐Acceptor Cocrystals

Advanced Functional Materials, EarlyView.
Complex excitonic landscapes in acene–perfluoroacene cocrystals are unveiled by polarization‐resolved optical spectroscopy and many‐body theory. This systematic study of a prototypical model system for weakly interacting donor–acceptor compounds challenges common views of charge‐transfer excitons, providing a refined conceptual framework for ...
Sebastian Anhäuser, Ana M. Valencia, Sergei I. Ivlev, Marc Zeplichal, Andreas Terfort, Caterina Cocchi, Gregor Witte   +6 more
wiley   +1 more source

An Engineered Living Material With Pro‐Angiogenic Activity Inducible by Near‐Infrared Light

Advanced Functional Materials, EarlyView.
NIR‐responsive engineered living materials (ELMs) for controlled angiogenesis: Near‐infrared (800 nm) light activates engineered probiotic bacteria within alginate‐based living materials to secrete a blood vessel‐regenerating protein. The released protein promotes pro‐angiogenic effects in endothelial networks and chick chorioallantoic membranes.
Anwesha Chatterjee, Stefanie S. M. Meier, Sara Trujillo, Andreas Möglich, Shrikrishnan Sankaran   +4 more
wiley   +1 more source

Analysis of High Step-Up Quasi-Z-Source-Based Converter With Low Input Current Ripple

IEEE Open Journal of the Industrial Electronics Society
This article presents a new high step-up quasi-Z-source-based dc–dc converter with switched boost techniques and voltage multiplier cells. Compared with the conventional Z-source-based converters, this converter not only can achieve high voltage ...
Ataollah Samadian, Milad Ghavipanjeh Marangalu, Iman Talebian, Navid Hadifar, Seyed Hossein Hosseini, Mehran Sabahi, Hani Vahedi   +6 more
doaj   +1 more source

Sensorized Engineered Tissues with Built‐in Thermoregulation and Nutrient Supply

Advanced Functional Materials, EarlyView.
This work introduces a granular hydrogel‐based tissue engineering platform that includes a closed‐loop temperature control to maintain 37°C and sustainably releases nutrients, thereby enabling cells to retain a high viability even if stored at room temperature for up to 24 h.
Antonia Georgopoulou, Jakob Schreiner, Miriam Filippi, Aiste Balciunaite, Robert K. Katzschmann, Esther Amstad   +5 more
wiley   +1 more source

High Step-Up Interleaved DC–DC Converter with Voltage-Lift Capacitor and Voltage Multiplier Cell

Electronics
In this article, a new high step-up interleaved DC–DC converter is presented for renewable energy systems. The converter circuit is based on the interleaved two-phase boost converter and integrates a voltage-lift capacitor and a voltage multiplier cell.
Shin-Ju Chen, Sung-Pei Yang, Chao-Ming Huang, Po-Yuan Hu   +3 more
openaire   +1 more source

A Comprehensive Review on Voltage Multiplier Cells for DC-DC Converters

E3S Web of Conferences
This paper provides a comprehensive overview of voltage multiplier cells by Considering High step-up DC/DC converters without isolation for solar and wind power systems. A significant number of topologies have been investigated. This work reviews voltage multiplier and classifies voltage multiplier cells for High step-up DC/DC converters without ...
Sravanthi B., Nagi Reddy B., Renuka B., Vamshi Krishna G., Pal Thethi H., Jayanthi Muthuswamy   +5 more
openaire   +2 more sources

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source