Results 131 to 140 of about 1,097,273 (293)

Transient Dynamics and Thermal Stress for Nuclear Rocket Heat-exchanger [PDF]

open access: yes
Transient dynamics and thermal stresses in nuclear rocket heat ...
Liu, T. C., Shen, C. N.
core   +1 more source

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

open access: yesAdvanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger   +10 more
wiley   +1 more source

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

open access: yesAdvanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr   +7 more
wiley   +1 more source

Development of compact heat exchanger with additive manufacturing (Evaluation of condensation thermal-hydraulic characteristics of block type compact heat exchanger)

open access: yesNihon Kikai Gakkai ronbunshu
Heat exchangers are used in a wide range of applications and there has been a great deal of research and development on improving their performance, but in recent years there has been a growing demand for miniaturization, especially in energy systems. In
Kota CHIBA   +7 more
doaj   +1 more source

Flexibility and Dynamicity Enhances and Controls Supramolecular Self‐Assembly of Zinc(II) Metallogels

open access: yesAdvanced Functional Materials, EarlyView.
Zinc(II) coordination complexes with tunable aryloxy‐imine ligands exhibit controllable supramolecular self‐assembly into hierarchical fibrous structures. Coordination‐driven stacking, not π–π interactions, enables gelation, dynamic assembly/disassembly, and enhanced nanomechanical properties.
Merlin R. Stühler   +10 more
wiley   +1 more source

Heat transfer enhancement using nanofluids in the compression exchanger in a solar Stirling engine [PDF]

open access: yes, 2019
In this paper a improvement in the heat exchange of a solar Stirling engine during the compression phase was studied. The viability of using nanoparticles as ceramic oxide (Al2O3 in water) at different concentrations instead of conventional ...
Arjona-Escudero, Jose Luis   +2 more
core  

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

open access: yesAdvanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich   +6 more
wiley   +1 more source

Experimental Research on Different Types of Underground Heat Exchangers

open access: yesZhileng xuebao, 2004
The experiments on different underground exchangers were carried out to research their exchange performance. The experimental datum on heat extraction and heat rejection of single U and double U models vertical underground pipes was analyzed using heat ...
李新国, 薛玉伟, 赵军
doaj   +2 more sources

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