Медицинские технологии список научных статей

Широко известно, что лазерная терапия высокоэффективный физиотерапевтический метод лечения больных с различными заболеваниями. Однако среди пациентов и некоторой части медперсонала распространяются ничем не обоснованные мифы о какой-то особой «вредности» лазерного света. Обзор литературы, анализ...

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Представлены результаты анализа данных мониторинга врожденных пороков развития в 31 регионе РФ за период 20062012 гг. В ходе анализа единой базы данных получены частоты всех зарегистрированных в региональных отделениях пороков развития, а также группы селективных пороков (21 выделенная форма), что...

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A single-server cyclic-waiting system, i.e. a queuing system, in which a call gets service either at the time of arrival or after some cycle time T, has been studied in the article. The distribution functions of the intervals between arrivals and service times have exponential form; the service...

The joint model of the system operation process and the system multi-state reliability is applied to the reliability, risk and availability evaluation of the container gantry crane. The container gantry crane is described and the mean values of the container gantry crane operation process...

Solving practical optimal redundancy problems, one can ponder: what is the sense of optimizing if input data are taken “from the ceiling”? Indeed, statistical data are so unreliable (especially in reliability problems that such doubts have a very good ground. Not found any sources after searching...

The paper offers the method for calculation of reliability parameters and functional safety of technical systems, differing from known methods by an opportunity of obtaining strict formula expressions of stationary parameters directly from a system state graph. The method is suitable for solution...

The Motorways of the Sea is rather a new concept and, thus, is still in the process of development by the European Commission and in the Baltic Sea Region. The Baltic Sea Region is one of the most dynamic growth areas. Due to this fact the new ideas and technologies are needed to optimize the sea...

In flow networks, from the quality and service management point of view, measurement of the transmission ability of a network to meet the customers demand is very important. To meet the ultra high reliable requirements of such networks, a heuristic method for reliability redundancy optimization of...

An opened queuing network with a redundancy and a renewal of servers is considered. To calculate a stationary regime in this network directly it is necessary to consider sufficiently complicated and large system of linear algebraic equations. A special control of the network route matrix allows to...

A safety assessment approach for human-machine interfaces (HMI) of Nuclear Power Plant (NPP) instrumentation and control systems (I&Cs) based on the Safety Case methodology is proposed. I&C assessment model is described taking into account human factor impact. Normative profile based on...

Dependability assessment is typically based on complex probabilistic models. Markov and semi-Markov models are widely used to model dependability of complex hardware/software architectures. Solving such models, especially when they are stiff, is not trivial and is usually done using sophisticated...

This paper presents the three reliability growth models namely Duane, AMSAA, and ERG II models briefly. The paper compares the three models for both time and failure terminated tests. Comparisons are carried out by simulating and conducting the statistical hypothesis t-test on twenty sets of...

The performance of cellular manufacturing (CM) is conditioned by disruptive events, such as failure of machines, which randomly occur and penalize the performance of the cells and disturb seriously the smooth working of the factory. To overcome the problems caused by the breakdowns, we develop a...

This work describes the Optimal Spare Allocator (OSA), a software tool for Globalstar, which is a worldwide satellite telecommunication system designed at QUALCOMM (San Diego, USA). The Globalstar spare supply system is hierarchical and has three levels: Central Spare Stock (CSS), Regional Spare...

Dependent failures are extremely important in reliability analysis and must be given adequate treatment so as to minimize gross underestimation of reliability. German regulatory guidance documents for PSA stipulate that model parameters used for calculating frequencies should be derived from...

The existing ports are expected to handle ships bigger than those for which they were designed. The main restriction in serving these ships is the depth of port waters, which directly affects the safety of a manoeuvring ship. The under keel-clearance of a ship in the port water area should be such...

The paper is focused on adaptation of an isochrones method necessary for application to a weather routing system with evolutionary approach. Authors propose an adaptation of the isochrones method with area partitioning assuring that the route found by the adopted method would not cross land. In...

A ship, as an object for course control, is characterised by a nonlinear function describing the static manoeuvring characteristics. One of the methods, which can be used, for designing a non-linear course controller for ships is the backstepping method. It was used here for designing the...

This paper analyzes the behaviour of a fuzzy expert system for evaluating the dependence among successive operator actions, through a sensitivity analysis on the fuzzy input partitioning and assessment. Preliminary results are presented with respect to a case study concerning two successive tasks...