Results 61 to 70 of about 10,659 (309)

Self‐Cooling Molecular Spin Qudits

Advanced Materials, EarlyView.
A material made of [GdEr] molecular dimers can encode a qudit and perform as a magnetic refrigerant. Microwave resonant pulses coherently manipulate its 16 spin states, while direct demagnetization measurements cool the material and a device down to temperatures below 1 K.
Elías Palacios, David Aguilà, David Gracia, Diamatoula Maniaki, Leoní A. Barrios, Alessandro Chiesa, Jesús I. Martínez, Valentin Novikov, Olivier Roubeau, Stefano Carretta, Marco Evangelisti, Guillem Aromí, Fernando Luis   +12 more
wiley   +1 more source

1,2-Difluoroethylene (HFO-1132): synthesis and chemistry

Beilstein Journal of Organic Chemistry
This article provides a comprehensive overview of the synthesis and chemistry of 1,2-difluoroethylene (HFO-1132). The major routes for the preparation of the E- and Z-isomer of HFO-1132 are reviewed, along with the chemistry in radical, nucleophilic, and
Liubov V. Sokolenko, Taras M. Sokolenko, Yurii L. Yagupolskii   +2 more
doaj   +1 more source

Solar driven ejector cooling system employing natural refrigerants: thermo-economic analysis and optimization strategy

, 2022
Solar heat driven ejector cooling systems are interesting solutions for air conditioning, since they offer the possibility to use low-grade solar energy, by also saving the considerable electric energy required by conventional vapor compression cycles ...
Giovanni Napoli, Alfonso William Mauro, Rita Mastrullo, Raniero Trinchieri, Luca Viscito   +4 more
core   +1 more source

2D Co‐Mo‐Hydroxide‐Based Multifunctional Material for the Development of H2‐Based Clean Energy Technologies

Advanced Materials, EarlyView.
2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil, Celia Castillo‐Blas, Dawid Krystian Feler, Isabel Gómez‐Recio, Miguel Tinoco, Ana Querejeta‐Fernández, Rodrigo González‐Prieto, Felipe Gándara, Romualdo Santos Silva Jr, Pilar Ferrer, Carlos Prieto, Luc Lajaunie, José Luis Martinez‐Peña, María Luisa Ruiz‐González, José María González‐Calbet   +14 more
wiley   +1 more source

Application of Technical Gases and Their Families in Modern Industrial Technologies: A Review [PDF]

Problems of the Regional Energetics
The aim of the study is to review the use of gas products of natural and synthetic origin and their future application prospects. To achieve this goal, a number of high-tech technologies were pre-sented and analysed.
Simonenko Iu.M., Hrudka B.H., Chyhrin A.A., Kostenko Ye.V.   +3 more
doaj   +1 more source

Mechanically Programmable DNA Hydrogel Microparticles for 3D Cellular Systems

Advanced Materials, EarlyView.
DNA hydrogel microparticles are designed to exhibit controllable viscoelasticity and stiffness across three orders of magnitude from 30Pa$30 \,\mathrm{Pa}$ to 6.5kPa$6.5 \,\mathrm{kPa}$. They are uptaken into fibroblast spheroids where they are actively remodeled by cellular forces depending on their mechanical properties.
Tobias Walther, Eleni Dalaka, Gotthold Fläschner, Manuel Gómez‐González, Ilia Platzman, Sadaf Pashapour, Michelle Emmert, Pere Roca‐Cusachs, Xavier Trepat, Kerstin Göpfrich   +9 more
wiley   +1 more source

Case study of liquid suction heat exchanger in a mechanical refrigeration system using alternative refrigerants

, 2020
This paper investigates the effect of adding a liquid-suction heat exchanger on the performance of a mechanical refrigeration system using alternative refrigerants.
Mahmood, Raid Ahmed
core   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

Advanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

Steam Generating High Temperature Heat Pumps: Best Practices, Optimization Strategies and Refrigerant Selection for Performance Improvement

Energies
The present paper provides a general overview of the state of the art of steam generating heat pumps (SGHPs) technology employed in the industrial field.
Giampaolo D’Alessandro, Marco Iezzi, Filippo de Monte   +2 more
doaj   +1 more source

An update on the thermophysical properties data available for pure low GWP refrigerants

, 2021
The process to reduce the negative environmental impact of working fluids for the HVAC&R industry is still undergoing. One of the problems to be faced with the new low GWP refrigerants is the knowledge of their thermodynamic and transport properties. Few
Laura Fedele, Davide Menegazzo, Sergio Bobbo   +2 more
core   +1 more source