Results 51 to 60 of about 41,355 (316)

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Study of separation phenomenon in transonic flows produced by interaction between shock wave and boundary layer

Vietnam Journal of Mechanics, 2011
For compressible flows, the transonic state depends on the geometry, Mach number and the incidence. This effect can produce shock wave. Some studies showed that the interaction between shock wave and boundary layer concerns separation phenomenon. Studies
Hoang Thi Bich Ngoc, Nguyen Manh Hung
doaj   +1 more source

Flutter Boundary Prediction of a Two Dimensional Airfoil in Transonic Flight Regime with the Preset Angles of Attack [PDF]

Xibei Gongye Daxue Xuebao, 2018
Angle of attack has impact on transonic flow filed and aerodynamic force, but most of current researches on flutter use zero angle hypothesis, which has no consideration about angle of attack.

doaj   +1 more source

Dynamics of Magnetized Spherical Accretion Flows

, 2007
Transonic accretion flow with self-consistent treatment of random magnetic field is presented.Comment: in proceedings to "Astrophysics of Compact Objects", Huangshan, China ...
Dong Lai, Roman Shcherbakov, Xiang-Dong Li, Ye-Fei Yuan   +3 more
core   +1 more source

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

Advanced 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, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

Advanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source

Numerical analysis of dynamic wind turbine airfoil characteristics in transonic flow [PDF]

Wind Energy Science
Modern large wind turbine rotors can encounter airflow at inflow Mach numbers of around 0.3 and Reynolds numbers of the order of 10 million at the blade tip.
M. C. Vitulano, M. C. Vitulano, D. De Tavernier, G. De Stefano, D. von Terzi   +4 more
doaj   +1 more source

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

Advanced 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, Julian Burkhart, Kateryna Borysova, Chiara Mazzariol, Klaus Müller‐Buschbaum   +4 more
wiley   +1 more source

Computational aspects of the prediction of multidimensional transonic flows in turbomachinery [PDF]

The analytical prediction and description of transonic flow in turbomachinery is complicated by three fundamental effects: (1) the fluid equations describing the transonic regime are inherently nonlinear, (2) shock waves may be present in the flow, and ...
Oliver, D. A., Sparis, P.
core   +1 more source

The role of flow geometry in influencing the stability criteria for low angular momentum axisymmetric black hole accretion

, 2010
Using mathematical formalism borrowed from dynamical systems theory, a complete analytical investigation of the critical behaviour of the stationary flow configuration for the low angular momentum axisymmetric black hole accretion provides valuable ...
Abraham, Abramowicz, Abramowicz, Abramowicz, Afshordi, Aretemova, Arnab K. Ray, Balbus, Barai, Bardeen, Beloborodov, Beskin, Beskin, Beskin, Bhattacharjee, Bhattacharjee, Bisikalo, Blaes, Bohr, Caditz, Chakrabarti, Chakrabarti, Chakrabarti, Chandrasekhar, Chandrasekhar, Chaudhury, Das, Das, Das, Das, Das, Davis, Demianski, Eardley, Fragile, Frank, Fukue, Fukue, Fukue, Fukue, Fukumura, Fukumura, Goswami, Gu, Gu, Ho, Hubeny, Igumenshchev, Igumenshchev, Illarionov, Illarionov, Jordan, Kafatos, Kato, Kumar, Lense, Liang, Liang, Lu, Lu, Lu, Lu, Lu, Lynden-Bell, Maccarone, Mandal, Matsumoto, Muchotrzeb, Muchotrzeb, Muchotrzeb-Czerny, Nagakura, Nagakura, Nakayama, Nakayama, Narayan, Nelson, Nowak, Paczyński, Petterson, Petterson, Piran, Pringle, Proga, Ray, Ray, Ray, Ray, Ray, Sankhasubhra Nag, Scheuer, Shakura, Shakura, Swagata Acharya, Takahashi, Takahashi, Tapas K. Das, Theuns, Tóth, Visser, Yang   +99 more
core   +1 more source