Wszystkie pola: Zhang, Haitao - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Impact of heating rate and solvent on Ni-based catalysts prepared by solution combustion method for syngas methanation
Autorzy:: Zeng, Yan
Ma, Hongfang
Zhang, Haitao
Ying, Weiyong
Fang, Dingye
Powiązania:: https://bibliotekanauki.pl/articles/779390.pdf
Data publikacji:: 2014
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: nickel catalysts
syngas methanation
solution combustion method
Opis:: Ni-Al₂O₃ catalysts prepared by solution combustion method for syngas methanation were enhanced by employing various heating rate and different solvent. The catalytic properties were tested in syngas methanation. The result indicates that both of heating rate and solvent remarkably affect Ni particle size, which is a key factor to the catalytic activity of Ni-Al₂O₃ catalysts for syngas methanation. Moreover, the relationship between Ni particle size and the production rate of methane per unit mass was correlated. The optimal Ni-Al₂O₃ catalyst prepared in ethanol at 2°C/min, achieves a maximum production rate of methane at the mean size of 20.8 nm.
Źródło:: Polish Journal of Chemical Technology; 2014, 16, 4; 95-100
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Measurement of combined gap in whole process of transmission lines’ live working based on 3D laser point cloud
Autorzy:: Wang, Ying
Zhang, Haitao
Lv, Qiang
Gao, Qiang
Yi, Mingxing
Powiązania:: https://bibliotekanauki.pl/articles/27309938.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: 3D model
combined gap
laser point cloud
live working
transmission lines
Opis:: Transmission lines’ live working is one of an effective means to ensure the reliable operation of transmission lines. In order to solve the unsafe problems existing in the implementation of traditional live working, the paper uses ground-based lidar to collect point cloud data. A tile based on the pyramid data structure is proposed to complete the storage and calling of point cloud data. The improved bidirectional filtering algorithm is used to distinguish surface features quickly and obtain a 3D model of the site. Considering the characteristics of live working, the speed of data reading and querying, the nearest point search algorithm based on octree is used to acquire a real- time calculation of the safe distance of each point in the planned path, and the safety of the operation mode is obtained by comparing with the value specified in the regulation, and assist in making decisions of the operation plan. In the paper, the simulation of the actual working condition is carried out by taking the “the electric lifting device ascending” as an example. The experimental results show that the established three-dimensional model can meet the whole process control of the operation, and has achieved practical effect.
Źródło:: Archives of Electrical Engineering; 2023, 72, 3; 737--753
1427-4221
2300-2506
Pojawia się w:: Archives of Electrical Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Research on characteristics of embedded resonator sensor based on PtS2
Autorzy:: Li, Xin
Li, Xieyuan
Zhang, Haitao
Chen, Shuang
Liu, Shurong
Li, Yang
Powiązania:: https://bibliotekanauki.pl/articles/27310092.pdf
Data publikacji:: 2023
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: embedded
microring resonator
U-shaped feedback waveguide
PtS2 core layer
Opis:: An embedded microring resonator model using PtS2 as the core layer was designed and optimized for sensing. The inner layer is made of PtS2, and SiO2 and Si3N4 are used as cladding. The overall structure is Si3N4-SiO2-PtS2-SiO2-Si3N4. Field strength distribution of longitudinal section of single straight waveguide and the longitudinal section of coupling part of straight and annular waveguides are simulated according to the coupled-mode theory. The transfer matrix method is used to analyze characteristics between the length of the U-shaped feedback waveguide and the circumference of microring and the change of attenuation factor and coupling coefficient on the output spectrum. The simulation results showed that the embedded microring resonator with PtS2 as the core presents excellent optical properties. The resonance depth is more than –50 dB, and the sensitivity can reach 1806.61 dB/RIU. When the resonance wavelength is 1550.86 nm and the self-coupling coefficient is 0.9849. The corresponding detection limit is about 1.66056×10–7 dB/RIU, and the quality factor is 2.8848×10–5 under the measurement system with a signal-to-noise ratio of 30 dB. Compared with the traditional single microring structure, the proposed microring presents a higher free spectral range and more suitable for the fabrication of high-sensitivity, low-detection limit, and large-measurement range sensors.
Źródło:: Optica Applicata; 2023, 53, 2; 213--226
0078-5466
1899-7015
Pojawia się w:: Optica Applicata
Dostawca treści:: Biblioteka Nauki

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