Automatic Fire Detection and Extinction with Infrared Multispectrum Electro-Optical Technology with Watch-Dog Timer Control, for a 220KV to 33KV Transformer

The present research aims to design an automatic fire detection and extinction system, developed with infrared multi-spectrum electro-optical technology with watch-dog timer control, for an electrical transformer from 220KV to 33KV. Upon its development, it is concluded that the automatic detection and extinction system has a deluge system with sprayed water, which will be activated by a detection system with flame sensors, this system has infrared multispectrum Electro-Optical Technology and will be controlled by through the Timer Watch-Dog, which will automatically detect and report any failure in the state-of-theart microprocessor. By subjecting the detection and extinguishing system to operational and functional tests, an optimal response of the deluge sprinklers was obtained, through the pressure and flow parameters, also a coefficient of determination R2 equal to 0.991 is obtained, which represents that the design is optimal, evidencing feasibility from the operational and functional point of view. Keywords— Detection, Extinction, Automatic, ElectroOptical, Multispectral, Infrared, Timer Watch-Dog, Transformer

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Comparative Analysis of Rules in Five Leading Standards for Smoke Detectors Siting in the Presence of a Ceiling Irregularity

TRANSACTIONS of the VŠB – Technical University of Ostrava Safety Engineering Series ◽

10.1515/tvsbses-2017-0011 ◽

2017 ◽

Vol 12 (2) ◽

pp. 23-29 ◽

Cited By ~ 1

Author(s):

Milan Blagojević ◽

Radoje Jevtić ◽

Dejan Ristić

Keyword(s):

Detection System ◽

Fire Detection ◽

Combustion Products ◽

Point Of View ◽

Smoke Detector ◽

Main Question ◽

European Norm ◽

Length Width ◽

Smoke Detectors ◽

Formed Structure

Abstract Subdividing elements and different structures on the ceiling like beams or similar, significantly affect the location of the smoke detector, because they change the flow of combustion products. From point of view of fire detection system, designers it is very interesting how to arrange and distribute smoke detectors in applications when beams are formed structure like a “honeycomb” The European norm 54-14 is mandatory, but in practice, a main question appears: “Do we have the explanations detailed enough for all of the situations that could occur related to length, width and depth of honeycomb cells”? The main goal of this paper is to show the differences between the rules and the instructions in five standards: EN 54-14, VDE 0833-2, BS 5839-1, NPB 88, NFPA 72, and to find the best solution for various situations in practice.

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Machine Learning-Based Automatic Detection System for Demarcation Line of Gastric Cancer with NBI Images

10.26226/morressier.59a6b342d462b80290b541b0 ◽

2017 ◽

Author(s):

Naoya Ishida

Keyword(s):

Machine Learning ◽

Gastric Cancer ◽

Detection System ◽

Automatic Detection ◽

Demarcation Line ◽

Automatic Detection System

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Dental Inclusion of Canine and Wisdom Tooth in Orthodontics Chemical Necroses

Revista de Chimie ◽

10.37358/rc.18.8.6497 ◽

2018 ◽

Vol 69 (8) ◽

pp. 2191-2196

Author(s):

Cristian Constantin Budacu ◽

Nicoleta Ioanid ◽

Cristian Romanec ◽

Mihail Balan ◽

Liliana Lacramioara Pavel ◽

...

Keyword(s):

Third Molar ◽

Point Of View ◽

Separate Entity ◽

Wisdom Tooth ◽

Facial Aesthetics ◽

The Third ◽

Edentulous Mandible ◽

Canine Guidance ◽

Upper Jaw ◽

Functional Point

Canine plays an important role in the dento-maxillary system. From a functional point of view, it provides the canine guidance, by positioning it in the frontal area, has a role in facial aesthetics. It plays an important prosthetic role by having the longest root and one of the longest arcade teeth. Three molars represent the last teeth that erupt in the arches both in the jaw and in the mandible, which is why they remain the most frequently included.Canine incidence is quite common following the wisdom tooth. It can be unilateral or bilateral and is more common in the upper jaw. The canine may remain included at the vestibular, palatal or between the two bones. A separate entity is the incision of the canine in the edentulous mandible or jaw. The study included 213 cases with dento-alveolar pathology, of which 128 patients were selected with dental inclusion. Our study reports that the first three molars are frequent, followed by the canine as opposed to other studies conducted by Guzduz K in 2011 and Fardi A of the same year bringing the canines first (Fardi, Guzduz). Some studies attribute the first place to the superior canine in terms of frequency, but they are abstracted from the molar three inclusion that they consider as most frequently (Compoy). The most common tooth in inclusion is the third molar (lower and upper) followed by the upper canine; the most commonly affected are women for both canine and molar.

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