Results 71 to 80 of about 5,274,833 (344)

Robust and Thermally Stable Silicone Aerogels with Hyperconnected Network via Kinetically Optimized Hyperbranched Silane Precursors

open access: yesAdvanced Science, EarlyView.
Reactivity‐Programmed Assembly: A kinetic‐control strategy is reported for constructing hyperconnected silicone aerogels with a robust “thick‐neck” architecture. By exploiting the reactivity disparity of precursors, flexible segments are uniformly embedded within a rigid skeleton.
Aoqing Yan   +9 more
wiley   +1 more source

A Fundamental Study of Supercritical Flow at Sudden Expansion Structure by Using Numerical Model

open access: yesE3S Web of Conferences, 2018
In the design of hydraulic structures, it is common to deal with the supercritical flow. Abrupt expansion structure represents a type of transition often constructed in manmade hydraulic structure (e.g. chutes in dam structures, sewer or drainage system,
Lim Jia Jun   +2 more
doaj   +1 more source

Bamboo‐Like Whiskers‐Reinforced Bioceramics Accelerate Large Segmental Bone Regeneration via Dual Modulation of Type‐H Vessels and Osteoinduction

open access: yesAdvanced Science, EarlyView.
The graphical abstract image of bamboo‐like whisker‐reinforced Ca‐P bioceramics accelerating large segmental bone regeneration. ABSTRACT Regenerative repair of segmental bone defect remains a major clinical challenge. The conventional mental implants suffer from mechanical strength mismatch and long‐term foreign bodies presence.
Cong Feng   +10 more
wiley   +1 more source

Progress in Strain Engineering of 2D‐Integrated Heterostructures for Ultrasensitive Sensors

open access: yesAdvanced Science, EarlyView.
 . ABSTRACT Two‐dimensional (2D) integrated heterostructures have emerged as a cornerstone in the advancement of next‐generation sensor technologies. These heterostructures, which combine materials with different dimensionalities, have led to significant breakthroughs in sensing performance and device integration.
That Buu Ton   +4 more
wiley   +1 more source

A critical point for bifurcation cascades and featureless turbulence

open access: yes, 2019
In this Letter we show that a bifurcation cascade and fully sustained turbulence can share the phase space of a fluid flow system, resulting in the presence of competing stable attractors.
Canton, Jacopo   +3 more
core   +1 more source

Supercritical flow through a junction [PDF]

open access: yesLa Houille Blanche, 1968
o equations, friction forces are ignored and the waves are assumed to extend an infinite distance downstream. In order to find the position of B and of successive wave crests, it is necessary to calculate the angle ~ of the wave with the main channel.
openaire   +1 more source

Topological Materials and Related Applications

open access: yesAdvanced Electronic Materials, EarlyView.
This review covers topological materials—including topological insulators, quantum valley Hall and quantum spin Hall insulators, and topological Weyl and Dirac semimetals—as well as their most recent advancements in fields such as spintronics, electronics, photonics, thermoelectrics, and catalysis.
Carlo Grazianetti   +9 more
wiley   +1 more source

Cryogenic fluid flow instabilities in heat exchangers [PDF]

open access: yes, 1969
Analytical and experimental investigation determines the nature of oscillations and instabilities that occur in the flow of two-phase cryogenic fluids at both subcritical and supercritical pressures in heat exchangers.
Fleming, R. B., Staub, F. W.
core   +1 more source

Research on dynamic erosion mechanism of submarine landslide: Review and prospects

open access: yesZhongguo dizhi zaihai yu fangzhi xuebao
The geological hazards of submarine landslides can cause serious damage to infrastructure such as offshore wind power, submarine optical cables, and marine platforms, posing a serious challenge to the major strategic task of building a maritime power and
Yueping YIN   +8 more
doaj   +1 more source

Characteristic Analysis and Model Validation of Supercritical Carbon Dioxide Ejection in Pressure Vessel

open access: yesYuanzineng kexue jishu, 2023
When the pressure vessel of supercritical carbon dioxide energy conversion system breaks, very complex ejection phenomena will occur, and its critical flow characteristics need to be studied urgently.
MING Yang;FANG Huawei;LIU Kai;YI Jingwei;LIU Jiusong;ZHAO Fulong;TIAN Ruifeng
doaj  

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