In order to inhibit dendritic growth and improve the cycle stability of lithium metal anodes (LMAs), a 3D Nanoporous Nickel Foam (NP-NF) collector with hierarchical porous structure is designed through simple modification strategy Ni (NF). The only involves two steps, i.e. electrodeposition zinc chemical dealloying evolve nanoporous structure. obtained NP-NF possesses pores. large pores several hundreds micrometers from foam could facilitate fast Li+ transport in dynamics. mesopores on...

Although semantic segmentation methods have made remarkable progress so far, their long inference process limits use in practical applications. Recently, some two-branch and three-branch real-time networks been proposed to improve accuracy by adding branches extract spatial or border information. For the design of extracting information branches, preserving high-resolution features loss guide are commonly used However, these approaches not most efficient. To solve problem, we extraction...

Abstract Investigations of the detonation characteristics a new aluminized DNAN‐based melt‐cast explosive RMA‐2X (containing 30 wt.% DNAN (2,4‐dinitroanisole), NTO (3‐nitro‐1,2,4‐triazol‐5‐one), 10 HMX (1,3,5,7‐tetranitro‐1,3,5,7‐tetraazacyclooctane) and aluminum) were undertaken, as well lithium fluoride (LiF) substituted RMF‐2X DNAN, NTO, LiF). The interfacial velocity experiment was carried out to measure reaction zone parameters (including CJ pressure, pressure at Von Neumann spike,...

Abstract A melt-cast Duan-Zhang-Kim (DZK) mesoscopic reaction rate model is developed for the shock initiation of explosives based on pore collapse hot-spot ignition mechanism. series experiments was performed Comp B explosive to estimate effects loading pressure and particle size granular component, validated against experimental data. Further numerical simulations indicate that initial density formula proportion greatly affect explosives.

Abstract To investigate the detonation characteristics of a new aluminized DNAN‐based melt‐cast explosive RDA‐2 (containing DNAN (2,4‐dinitroanisole), HMX (cyclotetramethylene tetranitramine) and aluminum), series cylinder tests were conducted. The LiF (lithium fluoride) similar formulation was also tested to study influence aluminum on RDA‐2. wall expansion velocities recorded by Photonic Doppler Velocimetry (PDV). From experimental data, velocity, Gurney energy, CJ pressure explosives...

A perforation model is developed to predict the attitude deflection in oblique of concrete targets by a rigid projectile, which inertial moment projectile introduced, together with taking during shear plugging sub-stage into account, and shape plug formed on rear surface target also re-investigated. Moreover, new classification proposed based thickness, deflections different kinds are analyzed. It found that numerical results using good agreement previous experimental data simulated results....

Accurately predicting reactive flow is a challenge when characterizing an explosive under external shock stimuli as the initiation time on order of microsecond. The present study constructs new Ignition-Growth reaction rate model, which can describe processes explosives with different initial densities, particle sizes and loading pressures by only one set model parameters. Compared Lee-Tarver describes better process requires fewer Moreover, 2, 4-Dinitroanisole (DNAN)-based melt-cast RDA-2...

Long distance pipeline transmission is considered to be the most economic and safest method transport natural gas nowadays safety problem a focus of concern in academic industrial circles. Pressure fluctuation corrosive environment can make typical working condition long become low frequency corrosion fatigue condition, which leads high risk. In this paper, mathematic model crack growth rate (FCGR) considering stress ratio has been developed expressions every parameter were fitted. Critical...

The SiC superjunction MOSFETs have been the industry's expectation and are getting more attention. In this paper, a novel p-type NiO/N-SiC heterotype (HSJ) MOSFET with an integrated Schottky barrier diode for improved both forward reverse performance is proposed first time. TCAD numerical simulation results show that breakdown voltage (BV) of HSJ increased by than 14% thinner drift region thickness, specific on-resistance (R <inf xmlns:mml="http://www.w3.org/1998/Math/MathML"...

In the present work, a novel Ti-Al-C-Nb composite was prepared using in situ selective laser forming (ISLF). The formation mechanism of bulks, which were synthesized elemental titanium, aluminum, and carbon (graphite) powders via ISLF techniques, investigated. results showed that Ti3Al TiC phases dominant synthesis products during chemical reactions, these occurred process. size fine nanoscale crystal grains could reach 157 nm at an energy level 60 J/mm3. porous structure specimens...

A novel double trench 4H-SiC metal-oxide-semiconductor field-effect transistor with integrated heterojunction (HJD-DTMOS) is proposed and numerically investigated in this paper. The diode (HJD) effectively suppress the turn-on of intrinsic body PN reverse on-state HJD-DTMOS. Device simulation results show that breakdown voltage (BV) device improved by about 3.4% compared those conventional SiC MOSFET almost no specific on-resistance degradation. And recovery time (t <inf...

In the present work, a novel Ti-Al-C-Nb composite was prepared through in-situ selective laser forming (ISLF). The formation mechanism of bulks, which were synthesized using elemental titanium, aluminum, and carbon (graphite) powders via ISLF techniques, investigated. Result shows that Ti3Al TiC phases dominant synthesis product during chemical reactions, occurred in process. When scanning speed 100 mm/s, phase reaction Ti graphite, whose content increased with energy. size fine nano-scale...