PURPOSE The aim of this study was to analyze the shapes of lingual polished surfaces in lower complete dentures formed by polished surface impressions and to provide reference data for use when manufacturing edentulous trays and lower complete dentures. MATERIALS AND METHODS Twenty-six patients with mandibular edentulism were studied. After lower wax dentures were fabricated, wax was removed ...

Knuckle pads are well circumscribed thickenings of the skin over the metacarpophalangeal and, more commonly, the proximal interphalangeal joints. Although the association with several other clinical syndromes including Dupuytren's disease is well documented, most cases are idiopathic. We present a case of knuckle pads and briefly review the history and course of this disease.

A set of necessary conditions for a Petri net to be plain, pure and safe is derived. It is argued that these conditions are applicable, both in practice (in the interest of Petri net synthesis), and in theory (e.g., as part of a characterisation of the reachability graphs of live and safe marked graphs).

In the paper retiming of DSP algorithms exhibiting multirate behavior is treated. Using the non-ordinary marked graph model and the reachability theory, we provide a new condition for valid retiming of multirate graphs. We show that for a graph with n nodes the reachability condition can be split into the reachability condition for the topologically-equivalent unit-rate graph (all rates set to ...

air pads are applicable in ultra precision machines very much. two main components of these machines, spindle and table, use the advantages of such systems. the performance and efficiency of air pads have big influence on the whole machine quality. parameters affecting pressure distribution of air tables may be considered as, 1) air compressing method, 2) air nozzle diameter, shape, and size, 3...

As the cooling requirement and energy prices are increasing rapidly across world, need to develop highly efficient equipment is rising as well. Adiabatic employs evaporation pre-cool air flowing through a closed-loop coil. This study examines various adiabatic evaporative pads in terms of their pre-cooling potential advantages over currently available technological solutions isolating three cro...

The pyruvate dehydrogenase complex in mammalian tissues exists in a phosphorylated (inactive) and in a non-phosphorylated (active) form. These forms are interconverted by an ATP-requiring kinase, which is inhibited by pyruvate, ADP and thiamin pyrophosphate, and a phosphatase, which is activated both by Mg2+ and by Ca2+ ions (Linn et al., 1969; for recent review, see Denton et al., 1975). Brief...

spirulina platensis, a cyanobacterium of economic important was studied for the tolerance to cadmium. the bioassay studies showed the ec50 value to be 1.53 mg/g. the cyanobacterium was very sensitive to low metal concentration and the productivity was also reduced. the chlorophyll pigments reduced with decreasing the algal biomass. the algal survival rate showed a marked reduction in their surv...

Arranging I/Os in a matrix array over the core circuitry of an IC generally provides 5{10 times more I/Os than the traditional method of restricting pads to the periphery. This approach also minimizes overall die size. In this paper we describe the development of a new area{array pad router which di ers from other approaches in that no additional metal layer is added (unless needed) and no redi...

We fabricated multi-layered graphene/MoS2 heterostructured devices by positioning mechanically exfoliated bulk graphite and single-crystalline 2H-MoS2 onto Au metal pads on a SiO2/Si substrate via a contamination-free dry transfer technique. We also studied the electrical transport properties of Au/MoS2 junction devices for systematic comparison. A previous work has demonstrated the existence o...