Autor: Yang, Haibo - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Effect of Particle Sizes of Slag on Reduction Characteristics of Nickel Slag-Coal Composite Briquette
Autorzy:: Li, Xiaoming
Li, Yi
Xing, Xiangdong
Wang, Yanjun
Wen, Zhenyu
Yang, Haibo
Tematy:: resources reutilization
nickel slag
particle size
direct reduction
reduction characteristics; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2049420.pdf Link otwiera się w nowym oknie
Opis:: Nickel slag has a high-content iron and is a secondary utilization resource with great development potential. The coal-based direct reduction is an innovative technology that can be used to utilize the iron resources in nickel slag. The effect of the particle size of nickel slag on the strength and the reduction of nickel slag-coal composite briquettes were investigated. Four samples with particle size of 75~106 μm, 106~150 μm, 150~270 μm, and >270 μm were selected. The drop strength increased 9.4 times and the compressive strength reached 281.1 N when the nickel slag particle size decreased from >270 μm to 75~106 μm. The reduction degree determined by the data from the thermogravimetric experiment indicated that its maximum was 79.545%. The reduction experiments performed at 1200°C for 45 minutes indicated that the nickel slag with particle sizes between 75~106 μm were appropriate for the reduction of the nickel slag-coal composite briquettes.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Free vibration and buckling analysis of composite laminated shells using the refined zigzag theory
Autorzy:: Zhang, Haibo
Gao, Yihang
He, Dan
Yang, Wanli
Tematy:: composite
shell
buckling
free vibration
refined zigzag theory; Pokaż więcej
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Powiązania:: https://bibliotekanauki.pl/articles/2104757.pdf Link otwiera się w nowym oknie
Opis:: In this study, a new composite laminated shell model is proposed for free vibration and stability analysis based on the refined zigzag theory (RZT). In contrast to the published shell models based on the first-order shear deformation theory (FSDT), piecewise-linear zigzag functions are utilized to provide a more realistic representation of deformation states of a transverse shear-flexible shell. In the present formulation, the governing equations and boundary conditions of composite laminated shells are established by d’Alembert’s principle to obtain natural frequencies and critical buckling loadings. In order to evaluate the effectiveness and performance of the present new model for composite laminated shells, examples of free vibration and buckling analysis are carried out for cylindrical and spherical shells involving different lamination schemes and design parameters. The results are compared with the three dimensional (3D) exact, first-order and some high-order solutions in the literature. Numerical results show that the present model not only has high accuracy but also has superior computational efficiency in comparison with high-order models, such that it may show a great potential in engineering applications.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: A review of digital filtering in evaluation of surface roughness
Autorzy:: He, Baofeng
Zheng, Haibo
Ding, Siyuan
Yang, Ruizhao
Shi, Zhaoyao
Tematy:: surface roughness
profile filtering
areal filtering
surface engineering; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/1849137.pdf Link otwiera się w nowym oknie
Opis:: Surface roughness is an important indicator in the evaluation of machining and product quality, as well as a direct factor affecting the performance of components. A rapidly developing filtering technology has become the main means of extracting surface roughness. The International Organization for Standardization (ISO) is constantly updating and improving the standard system for filtering technology in order to meet the requirements of technological development. Based on the filters already accepted by the international standard ISO 16610, this study briefly introduces the filtering principle of each filter, reviews the development of each filter in the application of surface roughness, and compares the advantages and limitations of their individual performances. The application range of each filter is summarized and, finally, the future direction of the digital filtering used in surface roughness is extrapolated.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Fracture interference and propagation geometry of hydraulic fractures based on XFEM in an unconventional oil reservoir
Autorzy:: Liang, Shuang
Wang, Di
Liu, Dan
Tian, Yang
Wang, Haibo
Li, Fengxia
Dong, Gang
Yin, Chengfeng
Yang, Yi
Tematy:: złoże ropy
odwiert poziomy
gaz łupkowy
hydraulic fracturing
fracture interference
XFEM
fracture propagation geometry
unconventional oil reservoirs; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Powiązania:: https://bibliotekanauki.pl/articles/59111423.pdf Link otwiera się w nowym oknie
Opis:: Unconventional oil and gas reservoirs are characterised by low porosity, low permeability and low natural deliverability. At present, horizontal wells staged fracturing is an effective development method. However, in the case of staged hydraulic fracturing in horizontal wells, stress interference occurs between multiple fractures, leading to fracture deformation and even inhibiting the formation of fractures, thereby affecting reservoir production. In this paper, based on the extended finite element method (XFEM), considering the fluid flow in the fracture and fracturing fluid filtration, we analyse the effects of fracturing fluid pumping rate, fracture spacing and elastic modulus on horizontal in-situ stress, fracture parameters and fracture extension pattern during different fracturing initiation processes. The results show that the induced stress generated by the action of fracturing fluid changes the direction of horizontal in-situ stress in the elliptical region around the fracture. In the mode of simultaneous fracture initiation (TFIS), the extension of two symmetrical fractures is “repulsive”; in the mode of two fractures initiated at different times (TFIDT), the extension direction is “mutual attraction”. A large pumping rate and small elastic modulus are conducive to fracture propagation. In the TFIS mode, two fractures alternately expand, while in the TFIDT mode, the impact of rock mechanical properties and construction parameters on fracture propagation will be amplified. The extension of subsequent fractures will be restrained, especially when the fracture spacing is less than 10 m. The width of the previously created fracture will be severely affected, even causing a partial closure and becoming elongated fractures.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: State of the art and prospects for halide perovskite nanocrystals
Autorzy:: Bladt, Eva
Mora-Seró, Iván
Hofkens, Johan
Dutta, Anirban
Yan, Fei
Pradhan, Narayan
Li, Xiaoming
Scheblykin, Ivan G.
Roeffaers, Maarten B. J.
Rogach, Andrey L.
Hoye, Robert L. Z.
Wang, Yue
Gerhard, Marina
Korgel, Brian A.
Kumar, Sudhir
Zhang, Jin Z.
Samanta, Anunay
Galian, Raquel E.
Kovalenko, Maksym V.
Quan, Li Na
Debroye, Elke
Steele, Julian A.
Bakr, Osman M.
Yang, Peidong
Scheel, Manuel A.
Dey, Amrita
Manna, Liberato
Zhang, Yangning
Tisdale, William A.
Zhang, Qiao
Stolarczyk, Jacek
Cao, Muhan
Vincon, Ilka
Bao, Qiaoliang
Polavarapu, Lakshminarayana
Stranks, Samuel D.
Bodnarchuk, Maryna I.
Biju, Vasudevanpillai
Han, Chuang
Gao, Mengyu
Nag, Angshuman
Sun, Handong
Bals, Sara
Müller-Buschbaum, Peter
Yan, Yong
Shih, Chih-Jen
Demir, Hilmi Volkan
Zhong, Haizheng
Wu, Xian-gang
Mohammed, Omar F.
Son, Dong Hee
Gamelin, Daniel R.
Ha, Seung Kyun
Zeng, Haibo
De, Apurba
Kamat, Prashant V.
Wang, Ziyu
Yin, Jun
Luther, Joseph M.
Ye, Junzhi
Xu, Ke
Pérez-Prieto, Julia
Debnath, Tushar
Chouhan, Lata
Li, Yanxiu
Shamsi, Javad
Krahne, Roman
Feldmann, Jochen
Kshirsagar, Anuraj S.
Li, Liang
Opis:: Metal-halide perovskites have rapidly emerged as one of the most promising materials of the 21st century, with many exciting properties and great potential for a broad range of applications, from photovoltaics to optoelectronics and photocatalysis. The ease with which metal-halide perovskites can be synthesized in the form of brightly luminescent colloidal nanocrystals, as well as their tunable and intriguing optical and electronic properties, has attracted researchers from different disciplines of science and technology. In the last few years, there has been a significant progress in the shape-controlled synthesis of perovskite nanocrystals and understanding of their properties and applications. In this comprehensive review, researchers having expertise in different fields (chemistry, physics, and device engineering) of metal-halide perovskite nanocrystals have joined together to provide a state of the art overview and future prospects of metal-halide perovskite nanocrystal research.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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