Results 101 to 110 of about 3,477,557 (293)

Numerical modelling of the CNT growth region in premixed impinging flames

Results in Engineering
Carbon nanotube (CNT) growth in flame synthesis environments is strongly influenced by the local thermochemical conditions imposed by the flame, yet the mechanisms linking flame structure with catalytic nanotube formation remain poorly understood.
A. Gamboa, E.C. Fernandes
doaj   +1 more source

Oral Nanomicelle‐Mediated Sequential Butyrate Production in the Intestine for Ulcerative Colitis and Immunosuppression Treatment

Advanced Science, EarlyView.
After oral administration, inodorous GLU‐BA self‐assembles into nanomicelles in aqueous environments to resist premature gastric adsorption. Upon reaching the intestine, endogenous esterases rapidly cleave the built‐in ester bonds in these nanomicelles to release BA and GLU, with GLU further metabolized by gut microbiota to gradually generate BA ...
Feifei Xin, Zhike Xie, Danyue Zhao, Lin Yang, Yiqun Wan, Zuwei Liu, Situ Xiong, Ying Zhang, Lei Feng, Hao Wan   +9 more
wiley   +1 more source

Dynamics of premixed hydrogen/air flames in mesoscale channels

, 2008
Direct numerical simulation with detailed chemistry and transport is used to study the stabilization and dynamics of lean (φ = 0.5) premixed hydrogen/air atmospheric pressure flames in mesoscale planar channels. Channel heights of h = 2, 4, and 7 mm, and
Pizza, Gianmarco (author), Tomboulides, Ananias G. (author), Mantzaras, John (author), Frouzakis, Christos E. (author), Boulouchos, Konstantinos (author)   +4 more
core   +1 more source

Supercapacitor Safety: Overcharge‐Induced Failure Mechanisms in Electrochemical Double‐Layer Capacitors

Advanced Science, EarlyView.
Time‐resolved synchrotron radiography reveals the internal evolution of electrochemical double‐layer capacitors under abusive overcharge. EDLCs are shown to follow a thermally driven failure pathway involving electrolyte decomposition, gas generation, and structural collapse, distinct from chemically driven thermal runaway effects of Lithium‐ion ...
Thomas Dore, Inez Kesuma, Abdus S. Ali, Jonas Pfaff, Yuxiao Jin, Rosalie Hamill, Mark Buckwell, Hamish Reid, Thomas Finco, Zeyu Sun, Yuanze Li, Sebastian Schopferer, Siegfried Nau, Nils Böttcher, Henning Markötter, Alexander J. E. Rettie, James Robinson, Paul R. Shearing, Alexander Rack, Thomas S. Miller   +19 more
wiley   +1 more source

Non-linearities in the thermoacoustic response of a premixed swirl burner [PDF]

, 2009
PhDLean premixed combustion remains one of the simplest and most effective methods of reducing NOx emissions in industrial gas turbines. Lean premixed flames are however prone to an undesirable side effect known as combustion instability, reducing ...
Hosseini, S. M. Reza
core   +2 more sources

Numerical prediction of combustion instability limit cycle oscillations for a combustor with a long flame [PDF]

, 2017
A coupled numerical approach is investigated for predicting combustion instability limit cycle characteristics when the combustor contains a long flame.
Jingxuan Li, Yu Xia, Aimee S. Morgans, Li, J, Han, X, Xia, Y, Morgans, AS, Xingsi Han   +7 more
core   +1 more source

Ablation‐Immune Thermal Armor Via Microstructural‐Compatibility Design for Extreme Thermal Conditions

Advanced Science, EarlyView.
This study unveils a microstructural‐compatibility design strategy that integrates reactive melt infiltration with plasma spraying to fabricate carbon fiber‐reinforced ZrC‐SiC composites. The deliberate incorporation of SiC into the ZrC coating releases heat accumulation, suppresses detrimental lamellar ZrO2 formation, and reduces residual stress. This
Hongkang Ou, Lingxiang Guo, Bing Liu, Ziyi Yi, Yuyu Zhang, Jia Sun, Qiangang Fu   +6 more
wiley   +1 more source

Influence of Chemical Kinetics on Tulip Flame Formation in Highly Reactive (H₂/Air) and Low Reactive (CH₄/Air) Mixtures

Energies
The early stages of hydrogen–air and methane–air flame dynamics and the development and evolution of tulip flames in closed tubes of various aspect ratios and in a semi-open tube are studied by solving the fully compressible reactive Navier–Stokes ...
Chengeng Qian, Mikhail A. Liberman
doaj   +1 more source

Oligosaccharides With Defined Glycosidic Bonds Shape Gut Microbial Succession and Metabolism Via Bond‐Specific Microbial Responders

Advanced Science, EarlyView.
Oligosaccharides with defined glycosidic bonds drive divergent gut microbial succession and shape unique metabolic profiles. Absolute time‐series profiling with Bayesian generalized Lotka–Volterra modeling identifies bond‐specific microbial responders, while monoculture validation and metaproteomics reveal linkage‐matched transport and cleavage modules.
Xiaoxuan Lu, Jiaqi Zou, Geng Han, Mengyao Zhao, Ting Luo, Xiangru Feng, Liangliang Zhu, Yijia Chen, Xiaoguo Ji, Jiayang Jin, Liming Zhao   +10 more
wiley   +1 more source

Study on the open-air NEPE solid propellant fire characteristics: Effect of altitude upon the flame performance through CFD

FirePhysChem
Solid propellant fires, characterized by uncontrolled combustion behaviors, are a common occurrence in industries that utilize solid propellants and can lead to significant consequences. However, there has been a lack of comprehensive studies on modeling
Li Yu, Yupeng Hu, Guangmei Shi, Minghai Li, Yanhong Zhang   +4 more
doaj   +1 more source