Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Yunbing Hu"'
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2023, Iss 1, Pp 1-22 (2023)
Abstract Wireless localization technology has been widely used in indoor and outdoor fields. Channel estimation based on channel state information is a hot research topic in recent years. However, due to the interference of acquisition bandwidth, noi
Externí odkaz:
https://doaj.org/article/edd42b1318484127933b257631756c80
Publikováno v:
Frontiers in Earth Science, Vol 10 (2023)
A series of studies were carried out on 11 tight sandstone samples of Upper Carboniferous in Ordos Basin. Firstly, the deposit composition and pore structure characteristics are investigated based on analysis and experiments including cast thin secti
Externí odkaz:
https://doaj.org/article/4e9f6933deea4c5db3fea64fc63bbc06
Publikováno v:
ACS Omega, Vol 5, Iss 35, Pp 22661-22673 (2020)
Externí odkaz:
https://doaj.org/article/c9e3e76845464b708732af40ca70c685
Publikováno v:
Energy Science & Engineering, Vol 8, Iss 4, Pp 1135-1148 (2020)
Abstract Nuclear magnetic resonance (NMR) T2 cutoff value is an important parameter for pore structure evaluation. It is complicated and uneconomical to obtain T2 cutoff value by an experimental method; therefore, it is necessary to explore a predict
Externí odkaz:
https://doaj.org/article/9ee4c433db60406c8980cb8d38121858
Publikováno v:
IEEE Access, Vol 7, Pp 176884-176895 (2019)
The number of applications associated with OpenStreetMap (OSM), one of the most famous crowd-sourced projects for volunteered geographic information (VGI), have increased because OSM data is both `free' and `up-to-date'. However, limited by the abili
Externí odkaz:
https://doaj.org/article/48ac9742953141cf8cfa13af56761ce9
Publikováno v:
Sensors, Vol 22, Iss 14, p 5364 (2022)
With the increasing demand for wireless location services, it is of great interest to reduce the deployment cost of positioning systems. For this reason, indoor positioning based on WiFi has attracted great attention. Compared with the received signa
Externí odkaz:
https://doaj.org/article/319db3e0df804fcd82e1ef6ab59df2f0
Publikováno v:
Sensors, Vol 21, Iss 24, p 8228 (2021)
The inertial navigation system has high short-term positioning accuracy but features cumulative error. Although no cumulative error occurs in WiFi fingerprint localization, mismatching is common. A popular technique thus involves integrating an inert
Externí odkaz:
https://doaj.org/article/bbe4071133144b77bf9c528f15b14301
Freeze-Thaw Cycle Effect on Sputtering Rate of Water-Saturated Yellow Sandstone under Impact Loading
Publikováno v:
Advances in Civil Engineering, Vol 2019 (2019)
In order to explore the impact of freeze-thaw temperature on the sputtering rate of water-saturated yellow sandstone under impact loading, in this paper, the Hopkinson pressure bar is used to conduct impact loading test on the water-saturated yellow
Externí odkaz:
https://doaj.org/article/d02a08a974154bf381cc4ac23d21d705
Publikováno v:
Energy & Fuels. 34:16059-16072
Thirty-eight samples from tight sandstone reservoir in the upper Paleozoic layer of Ordos Basin, China were examined. The micropore structure of the reservoir was observed by casting thin sections,...
Autor:
Junjian Zhang, Yunbing Hu
Publikováno v:
Energy & Fuels. 34:13924-13942
Based on the NMR T2 spectra of all of the samples, the applicability of the single fractal model and the multifractal model for the quantitative investigation of pore diameter distribution heteroge...