The umbrella-shaped bolt (U-bolt) is a novel type of mechanical used for rock reinforcement. It made smooth steel bar, hinges, rigid rods, and sliding blocks. During installation operation, the tension converted into extrusion force on mass deep in slope, so that higher compressive strength to obtain greater friction anchoring force. In this article, structural analysis results U-bolt provided,...

BBN’s project in knowledge representation for natural language understanding is developing techniques for computer assistance to a decision maker who is collecting information about and making choices in a complex situation. In particular, we are designing a system for natural language control of an intelligent graphics display. This system is intended for use in situation assessment and inform...

Data science teams often collaboratively analyze datasets, generating dataset versions at each stage of iterative exploration and analysis. There is a pressing need for a system that can support dataset versioning, enabling such teams to efficiently store, track, and query across dataset versions. While git and svn are highly effective at managing code, they are not capable of managing large un...

The current paper is concerned with modelling damage and fracture in woven fabric composite double-lap bolted joints that fail by net-tension. A 3-D finite element model is used, which incorporates bolt clamp-up, to model a range of CFRP bolted joints, which were also tested experimentally. The effects of laminate lay-up, joint geometry, hole size and bolt clamp-up torque were considered. An Ex...

Background: We investigated the use of a simple novel nut and bolt task in premanifest and manifest Huntington’s disease (HD) patients to detect and quantify motor impairments at all stages of the disease. Methods: Premanifest HD (n=24), manifest HD (n=27) and control (n=32) participants were asked to screw a nut onto a bolt in one direction, using three different sized bolts with their left an...

Fractures of the proximal femur are one of the greatest challenges facing the medical community, constituting a heavy socioeconomic burden worldwide. Controversy exists regarding the optimal treatment for patients with unstable trochanteric proximal femoral fractures. The recognised treatment alternatives are extramedullary fixation usually with a sliding hip screw and intramedullary fixation w...

Salmincola californiensis is a freshwater parasitic copepod of Pacific salmon and trout (genus Oncorhynchus). While the duration its juvenile life stage – free-swimming copepodid (pictured here) lasts for only about 5 days at 16°C, this short time represents opportunity when members species can seek attach themselves to potential hosts. One way that copepods move in water column by executing se...

Due to existence of uncertainties in input geometrical properties of fractures, there is not any unique solution for assessing the stability of slopes in jointed rock masses. Therefore, the necessity of applying probabilistic analysis in these cases is inevitable. In this study a probabilistic analysis procedure together with relevant algorithms are developed using Discrete Fracture Network-Dis...