Gradient distribution of vascular structure made the bamboo wall so effective which improved load-bearing capacity such bio-mimicked energy absorption structures and modify crush behavior thin-walled composite tubes. In this research, influence layering design stacking sequence on behavior, failure mechanism absorbed bamboo-inspired GFRP tubes is assessed experimentally numerically. Quasi-stati...

Composite tubular structures have shown promise as energy absorbers in the automobile industry. This paper investigates absorption characteristics of carbon fiber reinforced plastic (CFRP) tubes with pre-existing holes. Holes may represent an extreme case impact damage that perforates tube, e.g., stones from road surface impacting tubes. Tubes holes more conservative performance characteristics...

DENTAL amalgams constitute a most important and very high proportion of individual tooth restorations. The physical properties of finished amalgams, upon which the restorations depend for satisfactory service, vary with the alloy formulas, manufacturing methods, mixing procedures, and condensation technics. Previous studies of amalgams have established the effects of many variables and the Amer...

Modifying blasting practices to achieve a more suitable mill feed size – which varies according to the crushing/grinding circuit – can achieve up to a 30% increase in throughput. Following an initial benchmarking of an operation’s practices, SRK can advise on how value-added blasting will deliver improvements in both mill capacity and overall consistency of performance. SRK employs modelling to...

This paper presents the design of a mechanical transducer for a new kind of optical-fiber accelerometer based on birefringence variation. Vibration-induced fiber deformation modifies the birefringence within the fiber and hence the state of polarization of the light. To deform the fiber a mechanical transducer has to be made. This article compares analytically different transducers using either...

When teeth and their supporting structures are subjected to impact trauma, the resultant injury manifests either as a separation or a crushing injury or a combination of both (1) (Fig. 1). Separation injuries are exemplified by displacement of teeth during which there is cleavage of tissues such as the periodontial ligament (PDL). This occurs during avulsions and extrusive luxations. Damage to ...

Replantation of an amputated limb is generally contraindicated in crushing and traction injuries. Injury to muscle tissue and skin also creates difficulties in coverage, and bony fractures may shorten limb length which can impede lower extremity function. Numerous cases have been reported on the successful replantation of the lower limb in children; however, review of previous English literatur...

Pilot studies revealed promising results regarding crushing virtual cigarettes to reduce tobacco addiction. In this study, 91 regular smokers were randomly assigned to two treatment conditions that differ only by the action performed in the virtual environment: crushing virtual cigarettes or grasping virtual balls. All participants also received minimal psychosocial support from nurses during e...

This study investigates the motor pattern and head movements during feeding of a durophagus shark, the bonnethead Sphyrna tiburo, using electromyography and simultaneous high-speed video. Sphyrna tiburo feeds almost exclusively on hard-shelled crabs, with shrimp and fish taken occasionally. It captures crabs by ram feeding, then processes or reduces the prey by crushing it between molariform te...