Abstract Free surface-assisted TBM disc cutter for rock breaking is an important direction the optimizing of structure. To study influence free surface on excavation, surfaces limited-width opening and unlimited-width were presented, six different combinations proposed. The penetration tests sandstone with carried out. results showed that mass adjacent to fell off after sample fracture. caused ...

PURPOSE New all-inside meniscal repair devices include those combining sutures with anchors and that allow for an "adjustable" repair. This study's purpose was to compare the failure strength of new meniscal repair devices with suture repairs. TYPE OF STUDY Experimental laboratory biomechanical study. METHODS A single repair was placed in a vertical longitudinal peripheral tear made in fres...

constructed upon a height (by footing) or breaking in to the ground, in a building, making a close relation between earth and soil is of great importance. in addition, earth as a prior factor in creation of a shade and residence, plays a crucial role in architecture history. throughout the different area, earth is paid attention differently: as a source of cool (in china), a source of heat (cap...

breaking waves have ability to transport large quantities of sediment and significant impact on coastal structures morphology. hence, modeling of wave breaking is an important subject in coastal and marine engineering. in this research, the periodic wave breaking process on a plane slope is studied experimentally and numerically. laboratory experiments were conducted to record water surface ele...

For the problem of stiffness calculation a composite slim beam with reinforced concrete truss slab as floor slab, short-term deflection is calculated and analyzed by theoretical numerical methods. The result shows that load-deflection curve linear in middle span beam, cross section ideal section. flat can be according to elastic theory. area converted into steel method conversion section, then ...

An axisymmetric hot closed die-forging process has been studied by physical modeling technique using the plasticine. To observe the material flow pattern, layers of plasticine with different colors were used. The normal direction to the layers was considered a principal direction. The strain distribution was obtained by measuring the thickness of the plasticine layers. Based on the strain distr...

Bob Leahy: Hi James. Thanks for agreeing to talk to PositiveLite.com again, this time on the PARTNER study. Now I read your analysis of the interim results – Positive Lite.com published it here – which took me back to the day the news first broke from CROI that we finally had data about the risk of HIV transmission involving gay men with an undetectable viral load. I was really excited that day...

henbane hyoscyamus reticulatus l. is a plant species in solanaceae family that seeds hardly germinate because of seed dormancy. in order to determine the best methods for seed dormancy breaking in henbane, a experiment was conducted as a completely randomized design with three replications. the treatments included moist pre-chilling (at 4 °c) for 7, 14, 21 and 28 days, combined treatment of gib...