Results 91 to 100 of about 109,081 (295)

Leakage Flow in Honeycomb-Labyrinth Seal Cavity in Stator of Low-Speed Research Compressor

Shanghai Jiaotong Daxue xuebao
The honeycomb at the inner band of a compressor stator and the labyrinth on the disk form a sealed cavity, in which the clearance leakage flow has a key impact on the aerodynamic performance of the axial flow compressor.
SHAO Runzhu, TENG Jinfang, FAN Lin, ZHONG Yongjian, JU Zhenzhou, ZHU Mingmin
doaj   +1 more source

Spontaneous Symmetry Breaking and Dynamic Phase Transition in Monolayer Silicene

, 2012
The (r3xr3)R30{\deg} honeycomb of silicene monolayer on Ag(111) was found to undergo a phase transition to two types of mirror-symmetric boundary-separated rhombic phases at temperatures below 40 K by scanning tunneling microscopy.
Chen, Lan, Cheng, Peng, Ding, Zijing, Feng, Baojie, Li, Hui, Meng, Sheng, Qiu, Jinglan, Wu, Kehui   +7 more
core   +1 more source

Structure Formation in Butterfly Scales: Interplay of Genetic Control, Mechanical Instabilities, and Dynamic Material Properties

Advanced Functional Materials, EarlyView.
Butterfly wing scales are intricate cuticular functional nanosctructures. This perspective suggests that spatially varying material properties, cytoskeletal constraints, and growth‐driven mechanical instabilities shape the resulting nanoscale architectures created from single cells.
Anupama Prakash, Victoria Lloyd, Yi Yang, Anna‐Lee Jessop, Anthony McDougal, Primož Pirih, Guillaume Duclos, Andrew Parnell, Mathias Kolle, Nicola J. Nadeau, Bodo D. Wilts   +10 more
wiley   +1 more source

Mechanical properties of honeycomb structure with zero Poisson’s ratio for flexible trailing edge

Journal of Aeronautical Materials
To provide technical support for the design of new seamless flexible trailing edge structures，a comparative study of the elastic properties of four novel zero Poisson’s ratio honeycomb structures（sinusoidal-type，V-type，segmented sinusoidal-type and ...
ZHOU Yue, LI Bo, XU Weiwei, WEN Youyi
doaj   +1 more source

Instabilities and soot formation in high pressure explosion flames [PDF]

, 2009
Flame instabilities, cellular structures and soot formed in high pressure, rich, spherically expanding iso-octane-air flames have been studied experimentally using high speed Schlieren cinematography, OH fluorescence, and laser induced incandescence ...
Lockett, R. D.
core  

Graphene Nanosheet‐Based Mixed Proton‐Electron Conducting Membranes for Efficient Hydrogen Purification

Advanced Functional Materials, EarlyView.
A monolayer graphene/phosphoric‐acid mixed proton‐electron conducting membrane combines proton‐conducting nanoconfined acid channels with electron‐conducting graphene nanosheets for efficient high‐temperature hydrogen purification. The membrane achieves nearly 100% H2/CO2 selectivity and 69 GPU hydrogen permeance at 250°C, arising from synergistic ...
Kaiqiang He, Fanmengjing Wang, Dehua Dong, Yuan Kang, Zhikao Li, Jacek J. Jasieniak, Paul A. Webley, Douglas R. MacFarlane, Huanting Wang   +8 more
wiley   +1 more source

Long range magnetic ordering in Na$_2$IrO$_3$

, 2011
We report a combined experimental and theoretical investigation of the magnetic structure of the honeycomb lattice magnet Na$_2$IrO$_3$, a strong candidate for a realization of a gapless spin-liquid.
Berlijn, T., Gegenwart, P., Gretarsson, H., Hill, J. P., Kim, Young-June, Ku, W., Liu, X., Singh, Yogesh, Tsvelik, A., Yin, W. -G.   +9 more
core   +1 more source

A Personalized, 3D Printed Polymeric Device for the Prevention of Post‐Myocardial Infarction Cardiac Remodeling

Advanced Healthcare Materials, EarlyView.
Myocardial infarction often leads to pathological remodelling and ventricular dilatation, key features of HFrEF. This study introduces a personalized, 3D‐printed cardiac restraint device (CARD) printed using rationally designed inks displaying the requested printability and mechanical properties.
Nicola Mansour, Daniel Cohn, Ishita Sarkar, Raja Alamore, Kareem Abd Rbo, Offer Amir, Dean Nachman   +6 more
wiley   +1 more source

Bone Healing Around Implants in Normal and Medically Compromised Conditions: Osteoporosis and Diabetes

Advanced Healthcare Materials, EarlyView.
xx xx. ABSTRACT Osseointegration of orthopedic and dental implants is influenced by local and systemic factors, including their physicochemical surface properties and the patient's overall health status. Titanium and its alloys have been a longstanding standard for bone implants due to their innate biocompatibility and mechanical properties.
Dainelys Guadarrama Bello, Fabio Variola, Antonio Nanci   +2 more
wiley   +1 more source

Resolving the Structural Duality of Graphene Grain Boundaries

Advanced Materials, EarlyView.
Cantilever ncAFM resolves the atomic structure of grain boundaries in graphene, revealing coexisting stable and metastable types. Both contain pentagon/heptagon defects, but metastable GBs show irregular geometries. Modeling shows metastable GBs form under compression, exhibiting vertical corrugation, while stable GBs are flat.
Haojie Guo, Emiliano Ventura‐Macías, Mariano D. Jiménez‐Sánchez, Nicoleta Nicoara, Pierre Mallet, Jean‐Yves Veuillen, Vincent T. Renard, Antonio J. Martínez‐Galera, Pablo Pou, Julio Gómez‐Herrero, Rubén Pérez, Iván Brihuega   +11 more
wiley   +1 more source