Results 71 to 80 of about 62,377 (342)

Improved Direct Ink Writing of Liquid Metal Foams via Liquid Additives

open access: yesAdvanced Electronic Materials, EarlyView.
The ability to pattern liquid metal is useful for making soft electrical and thermal devices. Dispensing liquid metal from a nozzle naturally results in the formation of spheroidal droplets, making direct‐write printing challenging. Liquid metal foams containing pockets of air can extrude as filaments, albeit inconsistently.
Febby Krisnadi   +3 more
wiley   +1 more source

Comparative study of subsynchronous rotating flow patterns in centrifugal compressors with vaneless diffusers [PDF]

open access: yes, 1982
A comparative experimental investigation of the unstable operating modes of a centrifugal compressor was made. Impeller and/or diffuser rotating stall was observed, depending on the flow conditions.
Frigne, P., Vandenbraembussche, R.
core   +1 more source

The Future of Hydrogen‐Powered Aviation: Technologies, Challenges, and a Strategic Roadmap for Sustainable Decarbonization

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira   +4 more
wiley   +1 more source

Energy transfer process and evolution characteristics in impeller of contra-rotating axial fan

open access: yesMeitan kexue jishu
Energy is transferred to the airflow during the rotation of impeller. In engineering, the efficient energy conversion is a key issue. Mastering the energy transfer process in impeller is the premise and basis for realizing efficient energy conversion. In
Yongping CHEN   +5 more
doaj   +1 more source

CFD Simulation on The Effect of Impeller Immersion Depth and Impeller Rotational Speed on The Flow Pattern and Temperature Drop of Molten Ferronickel During Desulphurization Process [PDF]

open access: yesE3S Web of Conferences
Desulphurization is the purifying process of molten ferronickel from sulphur impurity. During the desulphurization process using a ladle furnace equipped with an impeller, the fluid flow characteristics and the temperature drop of molten ferronickel are ...
Rizqy Muhammad Fatih Ar   +3 more
doaj   +1 more source

Kinematic Alpha Tensors and dynamo mechanisms in a von Karman swirling flow [PDF]

open access: yes, 2012
We provide experimental and numerical evidence of in-blades vortices in the von Karman swirling flow. We estimate the associated kinematic α-effect tensor and show that it is compatible with recent models of the von Karman Sodium (VKS) dynamo. We further
DAVIAUD, François   +3 more
core   +6 more sources

Assessing the Impact of Promotions on Consumer Purchasing Behavior During Crises

open access: yesAgribusiness, EarlyView.
ABSTRACT Understanding how households modify their food expenditure decisions during times of crisis is essential because consumer purchasing behavior frequently changes during these times. This study looks at these behavioral shifts during the COVID‐19 pandemic, concentrating on how price sensitivity and response to sales promotions changed over the ...
Wafa Mehaba, José María Gil
wiley   +1 more source

Gas maldistribution in a fermenter stirred with multiple turbines [PDF]

open access: yes, 2006
The study is focused on modeling of gas maldistribution of aerated liquid systems in a multiple impeller bioreactor. The phenomenon may or may not depend on column design.
Brienne, Jean Paul   +3 more
core  

Real‐time fault detection in multicomponent nuclear‐waste slurries through data fusion of spectroscopic sensors

open access: yesAIChE Journal, EarlyView.
Abstract Three instruments–Raman spectroscopy, attenuated total reflectance–Fourier transform infrared spectroscopy, and focused beam reflectance measurement–were used to detect sensor faults, mixing faults, and unanticipated chemistry in a system of multicomponent slurries.
Steven H. Crouse   +2 more
wiley   +1 more source

Gas-liquid dispersion agitated by closed turbine type impeller [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly
Gas-liquid agitation by a turbine-type impeller having shrouds structurally (closed disk turbine impeller, CDT) was studied by examination of the flow behavior of the gas-liquid mixture in the impeller region, with energy consideration based on the ...
Yoshida Masanori   +4 more
doaj   +1 more source

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