Relation between the Grinding Force per Grit and its Breaking Force

Breaking the Dark Force

Recently Arkani-Hamed, Finkbeiner, Slatyer and Weiner proposed a unified explanation to the set of experimental and observational anomalies with possible connections to Dark Matter (DM). A central role is played by GeV scale “dark” gauge bosons exchanged by the weak scale DM. Motivated by this proposal, we build an explicit model of DM in the context of Weak Scale Supersymmetry (SUSY). We emplo...

The relation between the surface electromyogram and muscular force.

1. Motor units in the first dorsal interosseus muscle of normal human subjects were recorded by needle electrodes, together with the surface electromyogram (e.m.g.). The wave form contributed by each motor unit to the surface e.m.g. was determined by signal averaging. 2. The peak-to-peak amplitude of the wave form contributed to the surface e.m.g. by a motor unit increased approximately as the ...

The relation between force and velocity in human muscle.

On the relation between force and shortening during muscle twitch.

During the contraction phase of isotonic twitch there must be the change of muscle force. When initial acceleration was augmented by using heavy load or inertia lever 1,2,3), the muscle tension developed far bigger than the load and the condition of twitch was not 'isotonic' in real meaning. As far as a single twitch was concerned, the change of force should not be neglected. In the previous st...

Investigation into Engineering Ceramics Grinding Mechanism and the Influential Factors of the Grinding Force

The grinding force is a key parameter in the grinding process, which is closely associated with the grinding mechanism of engineering ceramics, microstructure and properties of ceramic materials, and the selection of grinding parameters. Meanwhile, it is also a key indicator to assess the grindability of a material. The grinding force is a crucial parameter to reflect the grinding process, whic...