In this work,in order to solve the problem of longitudinal water resistance for XLPE power cable,nine kinds of corrugated aluminium sheath with different embossing depths and pitchs were pressed by argon arc welding *...
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ISBN:
(纸本)9781510806474
In this work,in order to solve the problem of longitudinal water resistance for XLPE power cable,nine kinds of corrugated aluminium sheath with different embossing depths and pitchs were pressed by argon arc welding *** sheath was cut into six equal parts to study lateral *** pressure experiment were finished,a group of structural optimization parameters of corrugated aluminium sheath was *** results showed that,maximum value of the yield-point stress was 2.26 KN when embossing depth was 24.2mm and pitch was 4.5mm in the longanimous pressure range of the aluminium *** kinds of XLPE power cable of length than 3m meeting process requirement were preparated to longitudinal water resistance *** longitudinal water resistance experiment of the corrugated aluminium sheath was made by setting four different clearances or precision cutting widths based on structural optimization parameters in pressure *** experiment results indicated that the shortest water penetration length was 0.31 mm when precision cutting width was 244.7mm and clearance was-0.5mm,which achieved excellent effect.
The great effort that the scientific community has put in the last decade in the study of nanoscience and nanotechnology has been leading the research toward the development of new methodologies of nanostructures synt...
The great effort that the scientific community has put in the last decade in the study of nanoscience and nanotechnology has been leading the research toward the development of new methodologies of nanostructures synthesis. Among them, Pulsed Laser Ablation in Liquid, PLAL, is gaining an increasing interest thanks to several promising advantages, which include: environmental sustainability, easy experimental set-up (which does not require extreme conditions of the ambient of synthesis), long-lasting stability of the nanoparticles, which are produced completely free of undesired contaminants or dangerous synthesis reactants. In this work, a drop wise flow of deionized water on the periphery of NiTi rotating target was tested as a procedure for the significant production of NiTi nanoparticles. This is a novel technique to improve the ablation efficiency of nanoparticles than the existing techniques of laser ablation. The influence of varying external parameters like laser wavelengths and laser fluences on the size distribution of nanoparticle was investigated. Second harmonic and third harmonics of Nd: YAG nanosecond laser with three different laser fluences of 30 J/cm2, 40 J/cm2 and 50 J/cm2 was used to ablate the nitinol (Ni-55%, Ti-45%) target. The average particle size and redistribution was characterized by dynamic light scattering (DLS) and the crystalline formation of NiTi nanoparticles were analyzed by X-ray diffraction, where it confirms the alloy formation of NiTi nanoparticles.
Mg batteries have received increasing attention mainly because of their high volumetric capacity (3832 mAhcm−3). In order to form type NO.5 cell packing for Magnesium battery the finite element simulation by Deform 3D...
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Correction for ‘Cu-doped P2-Na0.5Ni0.33Mn0.67O2 encapsulated with MgO as a novel high voltage cathode with enhanced Na-storage properties’ by Hari Vignesh Ramasamy et al., J. Mater. Chem. A, 2017, DOI: 10.1039/c6ta1...
Correction for ‘Cu-doped P2-Na0.5Ni0.33Mn0.67O2 encapsulated with MgO as a novel high voltage cathode with enhanced Na-storage properties’ by Hari Vignesh Ramasamy et al., J. Mater. Chem. A, 2017, DOI: 10.1039/c6ta10334k.
Based on our extensive studies on the experimental, theoretical and numerical results on various tubes under axial compression/impact in the last few years, we propose a set of Key Performance Indicators (KPIs) to ass...
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Wide‐scale exploitation of renewable energy requires low‐cost efficient energy storage devices. The use of metal‐free, inexpensive redox‐active organic materials represents a promising direction for environmental...
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Wide‐scale exploitation of renewable energy requires low‐cost efficient energy storage devices. The use of metal‐free, inexpensive redox‐active organic materials represents a promising direction for environmental‐friendly, cost‐effective sustainable energy storage. To this end, a liquid battery is designed using hydroquinone (H 2 BQ) aqueous solution as catholyte and graphite in aprotic electrolyte as anode. The working potential can reach 3.4 V, with specific capacity of 395 mA h g −1 and stable capacity retention about 99.7 % per cycle. Such high potential and capacity is achieved using only C, H and O atoms as building blocks for redox species, and the replacement of Li metal with graphite anode can circumvent potential safety issues. As H 2 BQ can be extracted from biomass directly and its redox reaction mimics the bio‐electrochemical process of quinones in nature, using such a bio‐inspired organic compound in batteries enables access to greener and more sustainable energy‐storage technology.
In this work, we show that Cu-Sn based nanowires can be used as a one-dimensional (1-D) diffusion couple to study the atomic diffusion. In order to control the nano-soldering process and form reliable nano-joints (nan...
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In this work, we show that Cu-Sn based nanowires can be used as a one-dimensional (1-D) diffusion couple to study the atomic diffusion. In order to control the nano-soldering process and form reliable nano-joints (nanoscale interconnects between nanowires), fundamental study of wetting and intermetallic diffusion at the small dimension is necessary. An electrodeposition method is used to synthesize multisegmented nanowires in nanoporous templates in the diameter range of 15-200 nm and length up to 20 μm. By choosing two-segment Sn-Cu nanowires and symmetric three-segment Sn-Cu-Sn nanowires as the model systems in which Sn acts as the solder element and Cu serves as a functional element, we aim to understand the nanoscale soldering reaction along the one-dimension. The morphological evolutions of Sn and Cu segments and Kirkendall void formation in the Cu segment during the oven based soldering process have been observed. The fundamental principles of diffusion kinetics, primarily at a phenomenological level, are discussed. These studies and results provide important understanding in the design, assembly and integration of functional nanowires into nanoelectronics and nanodevices.
In this article we obtain thin layers from complex ceramic powders using industrial equipment based on atmospheric plasma spraying. We analyze the influence of the substrate material roughness on the quality of the th...
In this article we obtain thin layers from complex ceramic powders using industrial equipment based on atmospheric plasma spraying. We analyze the influence of the substrate material roughness on the quality of the thin layers using scanning electron microscopy (SEM) and X-ray dispersive energy analyze (EDAX). Preliminary results present an important dependence between the surface state and the structural and chemical homogeneity.
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