Results 71 to 80 of about 220,024 (289)

Fault Analysis and Preventive Measures for Bulging of Water-cooled Radiator

open access: yesKongzhi Yu Xinxi Jishu, 2016
Aiming to the problem of bulging of water-cooled radiator for power module, it conducted a series of experiments based on three probable reasons and did some theory calculation.
WANG Xingzhi   +3 more
doaj  

Experimental proof-of-concept of bubble column evaporative cooling for PEMFC heavy-duty vehicle thermal management

open access: yesCase Studies in Thermal Engineering
Challenging heat rejection caused by small temperature differences between ambient air and low-temperature proton exchange membrane fuel cells (PEMFC) lead to significantly increased radiator dimension and fan power requirements, increasing the need for ...
Christian Boßer, David Sedarsky
doaj   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

open access: yesAdvanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner   +9 more
wiley   +1 more source

Research on prediction method of temperature distribution in thyristor of UHVDC converter valve

open access: yesDiance yu yibiao
Aiming at the requirement of thyristor junction temperature prediction in the design stage of ultra high-voltag direct current converter valve, a research method of thyristor temperature distribution suitable for series waterway heat dissipation is ...
LI Kai   +5 more
doaj   +1 more source

Comparative study of heat rejection systems for portable life support equipment Final report [PDF]

open access: yes
Comparsion of heat rejection systems for portable life support equipment for earth orbital or lunar surface ...
Grossman, F. A., Myers, D. A.
core   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

open access: yesAdvanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner   +4 more
wiley   +1 more source

Closed Brayton Cycle power system with a high temperature pellet bed reactor heat source for NEP applications [PDF]

open access: yes
Capitalizing on past and future development of high temperature gas reactor (HTGR) technology, a low mass 15 MWe closed gas turbine cycle power system using a pellet bed reactor heating helium working fluid is proposed for Nuclear Electric Propulsion ...
El-Genk, Mohamed S.   +2 more
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

Experimental Investigation of Using E10 and E15 Blend Fuels as a Fuel on Performance Parameters of the Cooling System of an Engine

open access: yesJournal of Engineering
This research investigates the impact of E10 and E15 fuel blends on the cooling system performance parameter of an engine compared to pure gasoline. The paper was done by experimenting on a CT 400.01 four-cylinder, four-stroke, water-cooled petrol engine.
Adugnaw Nurlgn, Ramesh Babu Nallamothu
doaj   +1 more source

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