We report on a method to fabricate nanometer scale mechanical structures from bulk, single-crystal Si substrates. A technique developed previously required more complex fabrication methods and an undercut step using wet chemical processing. Our method does not require low pressure chemical vapor deposition of intermediate masking layers, and the final step in the processing uses a dry etch tech...

Storytelling and intertextuality feature frequently in Abdulrazak Gurnah’s literary works. This paper investigates the role storytelling play his novel Paradise, published 1994, shows how they ultimately undermine very concept of paradise itself. The first section analyses two intertextual references to Milton which cast doubt on idea East Africa as a through their contradictory nature. second ...

The present investigation's main goal is to assess butt joint and T-joint plates containing misalignment, undercut porosity welding defects by studying the influence of defect’s parameters on fatigue life. life predicted using ANSYS ver. 19 Software. results finite element analysis are used in regression find relationship between parameters. findings demonstrated that modeling pervious publishe...

The aim of the study was to examine changes in the position of the abutment teeth (AT), size of undercuts for a denture clasp, as well as an existence of an adequate preparation of abutment teeth. A total of 156 casts of partially edentulous jaws, with 460 AT, were analyzed. The size of undercuts, a degree of abutment rotation, inclination and migration were measured using a dental parallelomet...

Epileptic activity arises from an imbalance in excitatory and inhibitory synaptic transmission. To determine if alterations in the metabolism of glutamate, the primary excitatory neurotransmitter, might contribute to epilepsy we directly and indirectly modified levels of glutamine, an immediate precursor of synaptically released glutamate, in the rat neocortical undercut model of hyperexcitabil...

The " ideal " plastic assembly would have all components joined right in the molding shop. Press or snap fitted together by operators at the machine, finished products would be ready for packaging and shipment. While assembly operations in the automotive , machinery or appliance industries are usually a bit more complex, subassemblies frequently will employ snap and press fits—especially when a...