Curling of knitted fabrics edges is one of the complicated problems of these structures. Therefore, study and measurement of curling in knitted fabrics is important. In this study, it is tried to model the three-dimensional wale wise curl of the fabric using finite element modelling. In this model the tensions in different parts of a knitted loop due to bending and torsional forces in knitting ...

We examine the approach used and the results presented in a recent publication (Can. J. Phys. 76, 295 (1998)) in which (i) a noninertial reference frame is used to examine the motion of a curling rock, and (ii) the lateral motion of a curling rock is attributed to left–right asymmetry in the force acting on the rock. We point out the important differences between describing the motion in an ine...

An asymmetric force arising from grit and ice debris transfer gives rise to a model of curling stone trajectories that is compatible with observations. There are (almost) no free parameters in this model.

Curling is a sport played on ice in which two teams each deliver 8 granite stones towards a target, or 'house'. It is the only sport in which the trajectory of the projectile can be influenced after it has been released by the athlete. This is achieved by sweeping the ice in front of the stone to change the stone-ice friction and thereby enable to stone to travel further, curl more or stay stra...

Temperature sensitive curling is commonly observed in MEMS structures fabricated using a standard CMOS process. In this paper, a macromodel for vertical and lateral curling effects is derived by extending thermal multimorph theory for cantilever beams. Stresses induced by temperature change are lumped to form equivalent force and moment sources at the two ends of a beam. The macromodel is added...

Portland cement concrete (PCC) pavement undergoes repeated environmental load-related deflection resulting from temperature and moisture variations across pavement depth. This has been recognized as resulting in PCC pavement curling and warping since the mid-1920s. Slab curvature can be further magnified under repeated traffic loads and may ultimately lead to fatigue failures, including top-dow...

OBJECTIVE To investigate the injury patterns among competitive curlers. METHODS Participants at two curling championship events were asked to complete injury history questionnaires. RESULTS 76 curlers (39%) participated; 79% of these reported curling related musculoskeletal pain, most commonly involving the knee (54%), back (33%), and shoulder (20%). Sweeping and delivering the stone were m...

We present evidence for two behaviors influenced by intact, vegetative plant odor - upwind flight and abdomen curling - in female Manduca sexta and demonstrate the influence of the age and mating status of the moths on these behaviors. We compared the behavioral responses of laboratory-reared M. sexta. of discrete ages and physiological states (2,3, and 4 day old for virgin; 2 and 3 day old for...

For image structure representation and feature extraction, the curling vector field transform is proposed based on the magneto-static analogy. The digital image is taken as the source of the vector field, and the vector field transform of the image is presented imitating the form of the physical magnetic field, which has a distinctive feature of rotating whorl pattern. The simulation results in...