Abstract The screw-blind riveting combines direct screwing with the blind riveting. novel joining element can be integrated into every injection-molded component like a standard screw boss without significantly increasing processing time. screw-blind-rivet (SBR) consists of connected to substrate by thin sleeve. process screw-blind-riveting divided two phases. first is screw-in phase. secured S...

The joining of duplex DNA at base-paired ends by bacteriophage T4 DNA ligase was confirmed using either a synthetic duplex decamer or restriction endonuclease fragments of ColE1 DNA as substrates. The reaction was not linearly dependent on enzyme concentration but increased markedly at high enzyme concentrations. Although T4 RNA ligase did not catalyze this blunt end joining, it makedly stimula...

In the Operations Research queue-joining literature, beginning with Naor (1969), the queue joining probability is monotonic decreasing in the queue length; the longer the queue, the fewer consumers join. Recent academic and empirical evidence indicates that queue-joining probabilities may not always be decreasing in the queue length. We provide a simple explanation for these non-monotonic queue...

The Ku86 and XRCC4 proteins perform critical but poorly understood functions in the repair of DNA double-strand breaks. Both Ku 86- and XRCC4-deficient cells exhibit profound radiosensitivity and severe defects in V(D)J recombination, including excessive deletions at recombinant junctions. Previous workers have suggested that these phenomena may reflect defects in joining of the broken DNA ends...

Regular expressions with capture variables, also knownas “regex formulas,” extract relations of spans (inter-val positions) from text. These relations can be fur-ther manipulated via Relational Algebra as studied inthe context of document spanners, Fagin et al.’s for-mal framework for information extraction. We investigate the complexity of querying text by ConjunctiveQu...

Within the scope of increase in cutting tools efficiency, a CW CO;! laser beam has been used for butt welding sintered tips containing cobalt and tungsten carbide to a medium carbon steel core. After optimization of the laser processing conditions, full penetrating, sound and homogeneous welds are observed. Hardness is found to be nearly constant across the entire weld bead cross-section. Micro...

Accumulation of somatic mutations is thought to contribute to the aging process. Genomic instability has been shown to increase during aging, suggesting an aberrant function of DNA double-strand break (DSB) repair. Surprisingly, DSB repair has not been examined with respect to cellular senescence. Therefore, we have studied the ability of young, presenescent, and senescent normal human fibrobla...