In previous work we characterized a brain derived collapsing factor that induces the collapse of dorsal root ganglion growth cones in culture (Raper and Kapfhammer, 1990). To determine how the growth cone cytoskeleton is rearranged during collapse, we have compared the distributions of F-actin and microtubules in normal and partially collapsed growth cones. The relative concentration of F-actin...

The detection of potential voltage collapse in power systems is essential to maintain the stability heavy load demand. This paper proposes a method detect weak buses using two indices: margin factor (dS/dY) and prediction index (VCPI). Hence, aims improve Iraqi transmission grid by allocating FACTS devices optimal locations sizes. Two types are used this which Thyristor controlled series compen...

A Level I code format is proposed for the buckling design of ring-stiffened cylindrical shells under external pressure. Depth independent partial safety factors to be applied to the resistance (collapse pressures), are proposed for the four relevant collapse modes Unterframe Shell Collapse, Frame Yield, Plate Yield and Frame Tripping), covering design and fabrication factors. A partial safety f...

The stress distribution on the tip of the cracks and the stress intensity factor on them are the main courses in the fracture mechanic. The stress intensity factor of the cracks with the different load exited and the different geometry are listed in the tables of the standard books. In all of them, the cracks are located in the central point of the plates. In the uniform edge loaded case, the c...

The present work summarises a numerical procedure aimed to the residual strength assessment of a cracked butt joint, based on R-curve analysis and plastic collapse prediction. In a linear elastic fracture analysis, the SIF’s (Stress Intensity Factors) evaluation is based on the use of the Dual Boundary Element Method, as implemented in the BEASY code. A two -dimensional approximation (plane str...

The third row of the CKM matrix is poorly determined because it involves the top quark. Of the first two rows, the Vub element is the least well known, with a precision of about 20% in its magnitude, |Vub|. The measurement of |Vub| through inclusive charmless semileptonic B decays is complicated by the large background from charmfull semileptonic B decays. Experimentally, cuts may be imposed to...

Abstract Structure collapse, on the other hand, is a very complicated phenomenon involving considerable nonlinearity and variety of mechanical interactions. It should be thoroughly examined through experiments numerical simulations to prevent occurrence from occurring. When initial local failure small portion structure takes place it leads spread that damage neighbor elements in chain reaction ...

Abstract Since rock is heterogeneous, hence its behavior always variable. The governing parameters in deformations are time, applied load, composition, water content, temperature and loading conditions including confinement rate. Time-dependent deformation study extremely important for the prevention of hazards such as rockburst, roof fall collapse. In current study, sandstone samples from Kouz...

Abstract This research was conducted to reinforce the sheet pile located on embankment of Ciliwung Lama river – Inspection Road (RSCM) in Central Jakarta. The road is beside riverbanks collapsed for 40 m and position that slopes towards river. Based field observations analysis stability carried out, road’s collapse not due unstableness but inability receive lateral soil pressure. method used Pl...