Медицинские технологии список научных статей
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Control of characteristics of high-power terahertz laser beams by methods of diffractive optics
Technologies for silicon and diamond transmissive diffractive microoptics have been developed [1-6]. Silicon and diamond diffractive optical elements (DOE) for focusing terahertz laser beam [1-3] as well for formation of terahertz laser beam with predetermined mode composition [4] and polarization...
2023 / Vladimir Pavelyev -
ХАРАКТЕРИСТИКИ ИСКУССТВЕННОГО КЛАПАНА ЛЕГОЧНОЙ АРТЕРИИ ПРИ ЛАПАРОСКОПИЧЕСКОЙ ХОЛЕЦИСТЭКТОМИИ У БОЛЬНЫХ ОЖИРЕНИЕМ
Данная исследовательская работа посвящена изучению характеристик искусственного клапана легочной артерии в контексте его применения при лапароскопической холецистэктомии у пациентов с ожирением. Ожирение представляет собой серьезное заболевание, требующее хирургического вмешательства для удаления...
2023 / Гайыпов Кувватмырат, Мяммедов Йакуб Тячмырадович -
On the Effect of Delays in Self-oscillating System with External Influence
Self-oscillating system that interacts with energy source of limited power is considered in the presence of external force and joint action of delays in damping and elasticity. On the basis of the direct linearisation method, the solution of non-linear equations of the system is obtained. The...
2023 / Alishir A. AlifovScopusВАКRSCIESCI -
Самодвойственные отказоустойчивые структуры с контролем вычислений по паритету I. Структуры на основе дублирования и метода логической коррекции сигналов
Отказоустойчивые цифровые устройства синтезируют, как правило, с применением методов модульной избыточности и помехоустойчивого кодирования состояний. Однако такие подходы не учитывают специфики структур исходных объектов. Решение задачи синтеза отказоустойчивых устройств может быть найдено за счет ...
2023 / Ефанов Дмитрий Викторович, Погодина Татьяна СергеевнаВАКRSCI -
A NOVEL METHODOLOGY IN DEVELOPING STRESSSTRENGTH RELIABILITY MODEL FOR WEIBULL DISTRIBUTION: A COMPARISON OF ARTIFICIAL NEURAL NETWORK (ANN) AND RESPONSE SURFACE ANALYSIS (RSA)
Stress strength interference theory is widely used in evaluating the reliability of mechanical components. Various interference models have been developed when stress and strength follow a wide range of distributions. But when stress and strength follow Weibull distribution, a closed form of...
2023 / Saurabh L. Raikar, Rajesh S. Prabhu Gaonkar -
ANALYSIS OF AN M/M/1/K FEEDBACK WORKING VACATION QUEUE WITH RENEGING
The analysis of an M/M/1/N feedback working vacation queueing system with reneging is presented in this paper. Customers may become impatient and even disappointed when they see a long line. In the literature on queueing, customer dissatisfaction caused on by unsatisfactory service is referred as...
2023 / Krishan, Neetu Gupta -
PERFORMANCE CHARACTERIZATION OF TWO-SERVER BATCH SERVICE QUEUE WITH SECOND OPTIONAL SERVICE
In this paper, we analyze the performance of a finite capacity two-server Markovian batch service queueing model with second optional service. The servers provide two kinds of services, the first essential service (FES), which is provided to all incoming customers and the second optional service...
2023 / Andwilile Abrahamu George, P. Vijaya Laxmi -
PROPERTIES OF QUADRASOPHIC FUZZY SET AND ITS APPLICATIONS
Fuzzy set theory is a distinctive way of approaching ambiguous information. In this artifact, we introduce a new extension of fuzzy set known as Quadrasophic Fuzzy set and its properties. The Quadrasophic Fuzzy set has four parameters. The attributes and operations of the Quadrasophic Fuzzy sets...
2023 / G. Aruna, J. Jesintha Rosline -
A PENTAGONAL FUZZY-BASED SOLUTION OF MULTIPLE OBJECTIVE LPP
In this paper, the researchers compare proposed approach and Excel solver. In this proposed technique, the researchers converted fuzzy multiple objective linear programming problems (FMOLPP) into multiple objective linear programming problems (MOLPP) with the help of Defuzzified mean of maxima...
2023 / Junaid Basha M., Nandhini S., Nur Aisyah Abdul Fataf -
CONFIDENCE INTERVAL USING MAXIMUM LIKELIHOOD ESTIMATION FOR THE PARAMETERS OF POISSON TYPE LENGTH BIASED EXPONENTIAL CLASS MODEL
In this research paper, Confidence interval using Maximum likelihood estimation is obtained for Poisson type Length biased exponential class for the parameters. Failure intensity, mean time to failure and likelihood function for the parameter is obtained. Confidence interval has been derived for...
2023 / Rajesh Singh, Preeti A. Badge, Pritee Singh -
A TWO NON IDENTICAL UNITS COLD STANDBY SYSTEM WITH CORRELATED FAILURE TIME AND REPAIR MACHINE FAILURE
The paper deals with a system composed of two-non identical units (unit-1 and unit-2). Initially, unit-1 is operative and unit-2 is kept in cold standby. The cold standby unit can’t fail in its standby mode. Each unit of the system has two possible modes: Normal (N) and total failure (F). When the...
2023 / Alka Chaudhary, Shivali Sharma, Anika Sharma -
FAST AND ROBUST BIVARIATE CONTROL CHARTS FOR INDIVIDUAL OBSERVATIONS
There are various circumstances where it is important to simultaneously monitor or control two or more related quality characteristics. Independently tracking these quality characteristics might be quite deceptive. Hotelling's T2 chart, in which the T2 statistics are generated using the classical...
2023 / Sajesh T.A. -
A LITERATURE REVIEW ON DISCRETE-TIME QUEUEING MODELS
In this paper, a quantitative research survey is carried out on discrete-time queueing models. In real-life scenarios, the idea of discrete-time queues has taken on a new meaning. This survey mainly focuses on the unfolding of discrete-time queueing models in recent decades, challenges implied on...
2023 / Harini R., Indhira K. -
REDESCENDING M-ESTIMATOR BASED LASSO FOR FEATURE SELECTION
Aim: Regression analysis is one of the statistical methods which helps to model the data and helps in prediction, a large data set with higher number of variables will often create problem due to its dimensionality and hence create difficulties to gather important information from the data, so it...
2023 / R. Muthukrishnan, C.K. James -
ROBUST MAHALANOBIS DEPTH BASED ON MINIMUM REGULARIZED COVARIANCE DETERMINANT ESTIMATOR FOR HIGHDIMENSIONAL DATA
Handling of high-dimensional data is an important issue in robust literature. For analyzing data, location measure plays a vital role in almost all statistical methods. The location parameter of a distribution is used to find the central value. Many computational methods are used to find the...
2023 / R. Muthukrishnan, Surabhi S. Nair -
DISCRETE INVERSE GAMMA DISTRIBUTION BASED LOAD-SHARE MODEL WITH APPLICATION
In reliability engineering, the multi-component load-sharing models are being used to amplify system’s reliability. This study consists of the k-component load-sharing parallel system model considering each component’s failure time distribution as discrete inverse gamma. The classical and Bayesian...
2023 / Rachna Srivastava, Pramendra Singh Pundir -
ON AN IMPATIENT CONSUMER QUEUE WITH SECONDARY SERVICE, MULTIPLE VACATIONS AND SERVER BREAKDOWNS
This study presents a limited buffer secondary service queue with multiple vacations and server breakdowns. The model under consideration includes two types of impatient policies: balking and reneging. After the completion of the essential primary service, only few consumers choose to proceed with...
2023 / K. Jyothsna, P. Vijaya Kumar, P. Vijaya Laxmi -
Reliability Analysis of the Shaft Subjected to Twisting Moment and Bending Moment for Normally Distributed Strength and Stress
Shaft is the rotating component that transmits power from one place to another. The shafts are commonly subject to torsional and bending moments and combinations of these moments. In general, shafts are subjected to a combination of torsional and bending stresses. The design of a shaft is...
2023 / Yakoob Pasha, M. Tirumala Devi, T. Sumathi Uma Maheswari -
Redundancy Optimization for a System Comprising One Operative Unit and N Hot Standby Units
In many industries and applications, downtime or failure can have serious consequences, such as financial losses, safety hazards, or reputational damage. A hot standby unit can help minimize the impact of such events by providing a backup that can quickly and seamlessly take over in the event of a...
2023 / Parveen, Dalip Singh, Anil Kumar Taneja -
PROFIT ANALYSIS OF REPAIRABLE COLD STANDBY SYSTEM UNDER REFRESHMENTS
In the generation of science and technology, every company wants to increase the reliability of their products. So, they used the concept of cold standby redundancy, timely repair of the failed unit and providing limited refreshments to the available technician when required. This paper aims to...
2023 / Ajay Kumar, Ashish Sharma