Analysis of ρ-a Curve for Four-Layer Earth Structure Obtained With Wenner's Four Electrodes Arrangement

Temperature Structure of Four Merging Clusters Obtained with Chandra

We present preliminary Chandra results on z ≈ 0.2 clusters A665, A2163 and A2218, and a z = 0.05 cluster A754. For A754, A665 and A2163, we have derived first high-resolution projected gas temperature maps. All three show strong spatial temperature variations in the inner r < 0.5 − 1 h−1 50 Mpc regions, indicating ongoing mergers. The maps reveal a probable shock in front of a moving cluster co...

Analysis of a Four-Layer Series-Coupled Perceptron. II

Nonlinear dynamic analysis of a four-bar mechanism having revolute joint with clearance

In general, joints are assumed without clearance in the dynamic analysis of multi-body echanical systems. When joint clearance is considered, the mechanism obtains two uncontrollable degrees of freedom and hence the dynamic response considerably changes. The joints’ clearances are the main sources of vibrations and noise due to the impact of the coupling parts in the joints. Therefore, the syst...

Rho Factor: Transcription Termination in Four Steps

Rho factor is a hexameric ring-shaped helicase which terminates transcription in Escherichia coli. Two recent crystal structures of Rho in complex with nucleic acid reveal how this helicase ring loads onto mRNA and encircles it.

Dynamic Behavior Analysis of a Planar Four-bar Linkage with Multiple Clearances Joint

 In practice, clearances in the joints are inevitable due to tolerances, and defects arising from design and manufacturing. In the presence of clearance at a joint, a mechanism gains some additional, uncontrollable degrees of freedom which are the source of error. Moreover, joints undergo wear and backlashes and so cannot be used in precision mechanisms. In this study, the dynamic behaviour of ...