15 research outputs found
Diagnostic Tests, Bond Graphs and State Equations as Tools in the Assessment of Technical Condition of Machines
Przedstawiono spos贸b wyznaczenia testu diagnostycznego metod膮 macierzy boolowskich. Zaprezentowano przyk艂ad wykorzystania testu diagnostycznego stworzonego metod膮 macierzy boolowskiej. Przedstawiono spos贸b tworzenia graf贸w wi膮za艅 i r贸wna艅 stanu, kt贸re mog膮 by膰 narz臋dziem oceny stanu technicznego urz膮dze艅.This paper presents basic information on the structure of diagnostic tests used for the assessment of the technical state of parts and groups of technical systems. The Boolean matrix method is also demonstrated. The construction of bond graphs and state equations, which can be tools for the assessment of technical condition of machines has been presented
Marine and traction engines mechanical speed governors test stands overview
W artykule przedstawiono charakterystyk臋 wybranych stanowisk testowych regulator贸w pr臋dko艣ci obrotowej dla silnik贸w okr臋towych i trakcyjnych. Opisano rozwi膮zania techniczne stanowisk testowych firm Woodward Governor oraz Regulateurs Europa. Zaprezentowano stan techniki i tendencje rozwojowe w zakresie funkcjonalno艣ci wsp贸艂czesnych stanowisk testowych regulator贸w pr臋dko艣ci obrotowej.Paper presents characteristics of selected marine and traction engines governor test stands. Test stands manufactured by Woodward Governor and Regulateurs Europa have been presented. State-of-art of modern speed governor test stands functionality has been shown
Wyb贸r parametr贸w pracy wir贸wek paliwa do oceny ich zdatno艣ci
The various possible stages of the separator's work, including full and partial readiness to work and unserviceability have been considered. Oil separator transition through each of the working stages has been described. Typical oil separator damages have been specified. It has also been pointed out that there are possibilities to diagnose separators during their working time. The significance of separator starting time until the moment of achieving nominal working parameters has been emphasised. For the selected type of separator, nominal parameter values have been defined. The possibilities of measuring the oil separator working parameters and applying them to diagnose its ability to work have been described.Przedstawiono mo偶liwe stany pracy wir贸wek, uwzgl臋dniaj膮c stan pe艂nej zdatno艣ci, cz臋艣ciowej zdatno艣ci i niezdatno艣ci. Wskazano miejsca typowych uszkodze艅 wyst臋puj膮cych w wir贸wkach oleju. Wskazano na mo偶liwo艣膰 diagnozowania wir贸wek w czasie pracy i podkre艣lono znaczenie czasu rozruchu wir贸wki do momentu uzyskania parametr贸w nominalnych pracy. Dla wybranego typu wir贸wki przedstawiono nominalne warto艣ci parametr贸w pracy. Opisano mo偶liwo艣膰 pomiar贸w parametr贸w pracy wir贸wki i wykorzystanie ich do zdiagnozowania jej zdatno艣ci
Point Investigation Method for Cancer Changed Tissues
In this paper we describe the method of point investigation for cancer changed tissues with application of fluorescence phenomenon. The measurements have been made using a specially constructed scanning setup and fiber sensors. The experiment with investigation of endogenous fluorescence has been made on different types of slide tissues (e.g. breast and intestine tumor or precancerous and pathological skin tissues). The obtained spectral characteristics of fluorescence, with typical intensity peaks in 480-520 nm range, have explicitly outlined healthy and pathologically changed areas. The intensity of detected fluorescence determines the evaluation of disease advancement. Moreover, the ability to scan the surface of a tissue sample with constantly moving step of scanning setup in X-Y axis allows us to present the results in a spatial distribution of fluorescence intensity
The pharmacokinetics and safety of porfimer after repeated administration 30-45 days apart to patients undergoing photodynamic therapy
Porfimer is an intravenous (i.v.) injectable photosensitizing agent used in the photodynamic treatment of tumours and of high-grade dysplasia in Barrett's oesophagus