Results 101 to 110 of about 464,941 (308)
New method of joint surface morphology for calculating JRC
Yantu gongcheng xuebao, 2018 In order to explore the expression that well describes the fluctuations of the section line of joints, ten typical JRC curves proposed by Barton are discretized by using the interval sampling, and then the discrete data points are fitted by different ...
ZHAO Zhi-peng 1, MA Ming 1, WANG Gang 1,2, WANG Ke 1
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Strength of jointed rock masses [PDF]
Géotechnique, 1983 Jointed rock masses comprise interlocking angular par- ticles or blocks of hard brittle material separated by discontinuity surfaces which may or may not be coated with weaker materials. The strength of such rock masses depends on the strength of the intact pieces and on their freedom of movement which, in turn, depends on the number, orientation ...
openaire +1 more source
Advanced Science, EarlyView.Whole‐genome analysis of 1,054 chickens reveals three ancestral sources (NWC, SYA, and SHF) with distinct temporal entry patterns into the Tibetan Plateau. Route‐specific selection scans, calibrated against a demographic null, suggest complementary functional enrichments—vascular homeostasis (NWC), calcium signaling and cardiac adaptation (SYA), and ...
Zongyi Zhao +7 more
wiley +1 more source
Solution of plastic zone range in soft rock tunnel surroundings considering joint damage
Scientific ReportsBased on the Hohai model, a creep constitutive model of viscoelastic-plastic soft rock with joint fracture damage is proposed to solve the rheological failure problem in soft rock tunnels surrounding rock.
Taotao Hu +3 more
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Bioinspired Adaptive Leg‐Claw Enables Robust Perching and Grasping for UAVs
Advanced Science, EarlyView.Inspired by owl limb morphology and bat roosting behavior, this study presents a bioinspired adaptive leg‐claw mechanism that enables UAVs to perform robust and versatile perching and grasping. The design integrates a four‐link tibial structure, tension‐driven deformable feet, and active control, enabling stable perching on various branches and ...
Tianyu Cheng +6 more
wiley +1 more source
Crack patterns in heterogenous rocks using a combined phase field-cohesive interface modeling approach: A numerical study [PDF]
, 2019 Rock fracture in geo-materials is a complex phenomenon due to its intrinsic characteristics and the potential external loading conditions. As a result, these materials can experience intricate fracture patterns endowing various cracking phenomena such as:
Budarapu, Pattabhi Ramaiah +3 more
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Advanced Science, EarlyView.ARHGEF3 is broadly downregulated across human cancers and correlates with patient prognosis. Tumor‐intrinsic ARHGEF3 activates the RHOA–ROCK–PTEN cascade to inhibit AKT signaling, thereby promoting chemokine‐driven T‐cell infiltration and relieving lipid‐mediated myeloid immunosuppression.
Yue Li +8 more
wiley +1 more source
Dynamic Response Law of Nonpersistent Jointed Rock Mass Under Normal Impact Load
Shock and VibrationNormal dynamic mechanical characteristics of the jointed rock mass are of great significance for studying the working state of rock mass with nonpersistent joint.
Xianshi Deng +4 more
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Effect of Joint Morphology on Fracture Behavior for Rock Mass: DEM Investigation on a Single Joint
EngThis study proposes a novel discrete element modelling (DEM) framework for investigating the fracture behavior of jointed rock masses, with particular emphasis on rock specimens containing a single pre-existing joint.
Chong Wang +5 more
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Shear failure in rock using different constant normal load [PDF]
, 1999 SEILDEL – HABERFIELD’s [1] work was based on the analysis of the regular triangular asperities and assumed that the asperities were rigid. They used normal stiffness shear stress (CNS) to measure the joint dilatation rate and extended the LADANYI ...
Vásárhelyi, Balázs
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