نتایج جستجو برای: bolting
تعداد نتایج: 533 فیلتر نتایج به سال:
Ambient Vibration-Based Structural Health Monitoring (AVB–SHM) studies on prone-to-fall rock compartments have recently succeeded in detecting both pre-failure damaging processes and reinforcement provided by bolting. The current AVB–SHM instrumentation layout is yet generally an overkill, creating cost power issues sometimes requiring advanced signal processing techniques. In this article, we ...
Pak choi (Brassica rapa ssp. chinensis Makino) is a representative seed vernalization vegetable and premature bolting in spring can cause significant economic loss. Thus, it is critical to elucidate the mechanism of molecular regulation of vernalization and floral bud initiation to prevent premature bolting. Gibberellin (GA) is the key plant hormone involved in regulating plant development. To ...
In the process of numerical studies, stress-strain state rock massif around mine working driven at a depth 600 m was determined. The article presents analysis distribution total vertical and horizontal stresses isolines in roof, as well ratio residual strength rocks to initial. influence roof bolting on displacement contour established. Dangerous zones near-contour preparatory were identified. ...
Purpose. The published studies are aimed at determining the mechanism of deformation rocks contour around workings in terms parameters emerging fracturing and their dependence on indicators strength depth occurrence massif. tasks study include installation fracture indicators, determination development process working, including effect longwall mining taking into account possibility reuse worki...
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