It is a denture type micro electric field loading device design. The device is a removable partial denture, and there are a power supply and the electrode plate in the denture. The electrode plate embedded in the denture base, electrode embedded in the buccal and lingual base, between the base and the artificial teeth is the power supply, the power supply and both sides electrodes connected by ...

This paper reports on the study of effect ion cleaning emitting cleaved facet 9xx nm laser diodes based InGaAs/AlGaAs/GaAs their limiting radiation power. Measured maximal power and percentage with a visual manifestation catastrophic optical damage in active region were analyzed. It was found that short-term (1 min) low-energy treatment argon hydrogen ions does not lead to changes parameters di...

background and aim: toothbrushes cannot reach all interdental areas. interdental cleaning is an important part of oral hygiene care. the purpose of this study was to compare the supragingival plaque removal efficacy of an interdental cleaning power device (aquajet) and dental floss. materials and methods: thirty subjects were enrolled in this single-blind, split mouth clinical trial. all the su...

Abstract According to the characteristics of stainless steel material and scale composition condenser in a power plant, nitric acid was used as cleaning medium, corrosion inhibitor added inhibit on steel. On line chemical carried out without shutdown. The removal efficiency rate met requirements DL/T957-2017, terminal difference recovered optimal value after cleaning.

Solar energy is becoming a key resource of electrical in the modern world. Therefore, it necessary to use rationally and profitably. The article deals with issues efficient solar panels due automatic cleaning devices winter. proposed device allows you maximum quantities, regardless weather conditions seasons. This can be used construction new power plants, as well modernization existing ones. d...

abstract background and aim: toothbrushes cannot reach all interdental areas. interdental cleaning is an important part of oral hygiene care. the purpose of this study was to compare the supragingival plaque removal efficacy of an interdental cleaning power device (aquajet) and dental floss. materials and methods: thirty subjects were enrolled in this single-blind, split mouth clinical trial. a...

mechanical, hydraulic, and chemical washing methods are the most common methods for sewer line cleaning. each of these methods includes several sub methods. rodding and bucket machine are the two most important of mechanical cleaning methods, whereas high-speed and flushing are the most important hydraulic cleaning methods. acids, alkalis, surfactants, and enzymes are widely used materials in s...

BACKGROUND Cleaning of environmental surfaces in hospitals is important for the control of methicillin-resistant Staphylococcus aureus (MRSA) and other hospital-acquired infections transmitted by the contact route. Guidance regarding the best approaches for cleaning, however, is limited. METHODS In this study, a mathematical model based on ordinary differential equations was constructed to st...

The market of domestic service robots, and especially vacuum cleaners, has kept growing during the past decade. According to the International Federation of Robotics, more than one million units were sold worldwide in 2010. Currently, there is no in-depth analysis of the energetic impact of the introduction of this technology on the mass market. This topic is of prime importance in our energy-d...