Results 71 to 80 of about 2,033,573 (308)

Asymptotic Analysis on High-temperature Premixed Flames: Instability of Flame Fronts under the Constant-enthalpy Conditions

open access: yesJournal of Thermal Science and Technology, 2010
Asymptotic analysis on premixed flames with high-temperature combustible mixtures was performed to elucidate the instability of flame fronts. Planar premixed flames with sufficiently low Mach numbers were treated, and a one-step irreversible chemical ...
Satoshi KADOWAKI
doaj   +1 more source

Soft Actuators Integrated with Control and Power Units: Approaching Wireless Autonomous Soft Robots

open access: yesAdvanced Robotics Research, EarlyView.
Soft robots exhibit significant development potential in various applications. However, there are still key technical challenges regarding material improvement, structure design and components integration. This review focuses on the development and challenge of soft actuators, power components, and control components in untethered intelligent soft ...
Renwu Shi, Feifei Pan, Xiaobin Ji
wiley   +1 more source

Thermochemical Micro‐Explosion for Prompt Thrombolysis via Proximal Injection of Liquid Alkali Metal

open access: yesAdvanced Science, EarlyView.
We report a micro‐explosive thermochemical thrombolysis (METCT) therapy via injectable liquid alkali metal encapsulated in dimethyl silicone (LAM@oil). METCT enables prompt and safe vascular recanalization within 90 s. Critically, the LAM@oil system demonstrates significantly higher thrombolytic efficacy compared to clinically available thrombolytic ...
Xin Liao   +7 more
wiley   +1 more source

Effects of thermodynamic pressure on laminar spray flame propagation into monodisperse fuel droplet-mists

open access: yesApplications in Energy and Combustion Science
The effects of droplet diameter, overall equivalence ratio (0.8–1.5), and primary evaporation zone length (2–10 mm) on the burning velocity and thermal flame thickness in laminar n-heptane monodisperse spray flames under varying pressures (1.0–2.0 bar ...
Gulcan Ozel-Erol   +2 more
doaj   +1 more source

Unstable behaviors of cellular premixed flames caused by hydrodynamic and diffusive-thermal instabilities under high- and low-temperature environment

open access: yesNihon Kikai Gakkai ronbunshu, 2016
Unstable behaviors of cellular premixed flames caused by hydrodynamic and diffusive-thermal instabilities under high- and low-temperature environment were studied numerically.
Satoshi KADOWAKI   +5 more
doaj   +1 more source

In Situ Pseudo‐Halide Diffusion Enables Buried Interface Regulation and Crystallinity Enhancement in Perovskite Solar Cells

open access: yesAdvanced Science, EarlyView.
Thermally activated LiHCOO induces in situ pseudo‐halide diffusion, promoting buried interface strain release and perovskite crystallization. The monoclinic LiHCOO phase forms an open framework structure that enhances HCOO− diffusion and drives interfacial restructuring.
Chao Gao   +4 more
wiley   +1 more source

Influence of the altitude on the burning velocity of the natural gas

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2004
By the increasing use of natural gas in cities of Latin America located to high altitude, is necessary to study the effect of the altitude on the combustion, for example the burning velocity. This work is an experimental study of as it changes to the
Jorge Mario García Posada   +3 more
doaj   +1 more source

A Sprayable Nanoplatform Breaks the Vicious Cycle of Diabetic Wounds via Photoactivated Antioxidant and Drug Delivery

open access: yesAdvanced Science, EarlyView.
A sprayable near‐infrared‐activated nanoplatform incorporating MXene, ZnHCF nanozyme, and deferoxamine efficiently breaks the vicious cycle of diabetic wounds. Upon irradiation, interfacial electron transfer and photothermal effects enhance multi‐enzyme activity, enabling explosive ROS elimination, alleviation of hypoxia, and controlled DFO release ...
Jiahao Guo   +5 more
wiley   +1 more source

Experimental study on the combustion characteristics of hydrogen/ammonia blends in oxygen

open access: yesCase Studies in Thermal Engineering
Carbon-free ammonia and hydrogen have various disadvantages when used individually, which limits their application as clean energies. These disadvantages can be effectively overcome by combining them as ammonia/hydrogen mixtures in a rational manner.
Runzhi Li   +5 more
doaj   +1 more source

Laminar Burning Velocity of Multi-Component Gaseous Mixtures

open access: yesChemical Engineering Transactions, 2018
The laminar burning velocity is the essential parameters for the safe design of equipment and process. Indeed, the knowledge of this parameter allows for the definition of flammability limits, minimum oxygen concentration and the gas deflagration index ...
Gianmaria Pio, Ernesto Salzano
doaj   +1 more source

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