Zobrazeno 1 - 10
of 1 884
pro vyhledávání: '"NPR"'
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 8, Pp 3206-3220 (2024)
To overcome large deformation of deep phosphate rock roadways and pillar damage, a new type of constant-resistance large-deformation negative Poisson's ratio (NPR) bolt that can withstand a high pre-stress of at least 130 KN was developed. In the con
Externí odkaz:
https://doaj.org/article/b32660e1040f4c1782c5694638f55db7
Publikováno v:
International Journal of Coal Science & Technology, Vol 11, Iss 1, Pp 1-15 (2024)
Abstract NPR anchor cable is a new type of support material with negative Poisson's ratio effect, which is widely used in mine support because of its superb compensating mechanical effect. In order to study more deeply the support effect of NPR ancho
Externí odkaz:
https://doaj.org/article/8308c7e902e54a46877b2ead21c9bcbb
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 10, Iss 1, Pp 1-27 (2024)
Abstract The complicated geological environment of deep rocks poses new challenges to tunnel and mining engineering. Some thorny disasters such as large deformation of soft rock and rockburst are becoming more and more prominent. However, the classic
Externí odkaz:
https://doaj.org/article/bb94285f6e1c4d749c84ce927b2085a8
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-10 (2024)
Abstract Sepsis is a severe disease characterized by high mortality rates. Our aim was to develop an early prognostic indicator of adverse outcomes in sepsis, utilizing easily accessible routine blood tests. A retrospective analysis of sepsis patient
Externí odkaz:
https://doaj.org/article/9758d7e4efd7491ea84d4e5ccc38377d
Experimental study on joint sensing and early warning method of landslide disaster based on NPR-OFST
Publikováno v:
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, Vol 10, Iss 1, Pp 1-15 (2024)
Abstract In order to explore more effective methods of landslide disaster monitoring and controlling, NPR anchor cable and optical fiber grating strain sensor are physically combined to form a slope reinforcement-monitoring integration system, with P
Externí odkaz:
https://doaj.org/article/5f43ae4e3d654734af825cda8d613eed
Autor:
McMURTRIE, JOHN
Publikováno v:
Kirkus Reviews. 9/15/2024, Vol. 92 Issue 18, p69-70. 2p. 1 Color Photograph.
Publikováno v:
Materials & Design, Vol 246, Iss , Pp 113295- (2024)
In order to enhance the protection capability during impact loading, a composite material body (CMB) has been constructed using aluminum foam and a negative Poisson’s ratio (NPR) structure. The re-entrant NPR structure, fabricated from carbon fiber
Externí odkaz:
https://doaj.org/article/314aae999ff64f0584b76810b7dfcaa4
Publikováno v:
Rock Mechanics Bulletin, Vol 3, Iss 4, Pp 100148- (2024)
In this study, laboratory testing and numerical simulation methods are used to investigate the mechanical behavior and perform fracture prediction of a novel high-strength and high-toughness steel with a negative Poisson's ratio (NPR) effect under co
Externí odkaz:
https://doaj.org/article/29dcb31e84a244f4a1beba46150833a1
Publikováno v:
Underground Space, Vol 15, Iss , Pp 331-352 (2024)
A novel meta steel with negative Poisson’s ratio effect (termed as micro-NPR steel) is developed for rock support in deep underground engineering. It possesses high strength, high ductility, and high energy absorption characteristics. In this paper
Externí odkaz:
https://doaj.org/article/247609a9c6e641a8a8bd0e590da7f09d
Publikováno v:
Underground Space, Vol 14, Iss , Pp 156-175 (2024)
Although super-large-span tunnels ensure convenient transportation, they face many support challenges. The lack of normative construction guidance and the limited number of reference engineering cases pose a significant challenge to the stability con
Externí odkaz:
https://doaj.org/article/590dac297e6648acb57236453b3508b8