Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Dezhi Chang"'
Publikováno v:
Frontiers in Earth Science, Vol 10 (2023)
In practice, constant-resistance, energy-absorbing, and anti-scouring bolts inevitably deflect at an angle from the coal wall and other bearing surfaces, eventually giving way and losing their energy-absorbing function. The aim of this study was to d
Externí odkaz:
https://doaj.org/article/07642082c1b94835bac8a60232392d5c
Publikováno v:
Materials; Volume 15; Issue 10; Pages: 3464
In order to improve the impact resistance mechanical properties of bolt, the requirements of rock burst roadway support must be met. Based on the requirements that the anchor should have a reasonable deformation load threshold, high stroke efficiency
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07b9ad2d6daa828d8327b6834800d8ac
https://pubmed.ncbi.nlm.nih.gov/35629491
https://pubmed.ncbi.nlm.nih.gov/35629491
Publikováno v:
Sustainability; Volume 15; Issue 8; Pages: 6726
Conventional FRP anchor rods have low elongation and poor impact resistance, both of which do not meet the support requirements of rock burst roadways. Therefore, a pressure energy-absorbing FRP anchor rod composed of an FRP rod body, tray, energy-ab
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4190d8a9daf4d2b5f8fed15332314649
https://doi.org/10.3390/su15086726
https://doi.org/10.3390/su15086726
Publikováno v:
Processes; Volume 11; Issue 4; Pages: 1130
In order to enhance the anti-impact mechanical properties of the roadway support system, an automatic anchoring pre-tightening energy absorbing anchor composed of rod body, tray, constant resistance energy absorber, energy-absorbing casing bulging bl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c14b9f2b657ef3e841b225ca0e13b58
https://doi.org/10.3390/pr11041130
https://doi.org/10.3390/pr11041130
Autor:
Weiliang Bao, Dezhi Chang
Publikováno v:
ChemInform. 37
The CuI/L-proline-catalyzed zinc-promoted coupling reaction of vinyl bromides with diaryl diselenides or dialkyl diselenides readily occurred at 110 °C in [Bmim]BF 4 to give the corresponding vinyl selenides in good to excellent yields. The recyclab
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9efe312c2868dafaa5c0a373cfd9112d
https://doi.org/10.1002/chin.200648182
https://doi.org/10.1002/chin.200648182