Kvantifikacija kapaciteta za oporavak nakon naglog pada performansi kod organizacija koje su zavisne od informacionih i komunikacionih tehnologija

Kapacitet za oporavak organizacija predstavlja relativno novu naučnu oblast i nije detaljno proučena tema imajući na umu njenu kompleksnost i praktičnu primenu. Predmet ove disertacije predstavlja razvoj modela za kvantifikaciju kapaciteta za oporavak kod organizacija koje su zavisne od informacionih i komunikacionih tehnologija (ICT). Motivacija za rad na ovom problemu proistekla je iz činjenice da ne postoji jedinstven model za procenu kapaciteta za oporavak organizacije koji je priznat međunarodnim konsenzusom, već su to deskriptivni modeli koji tretiraju organizacije i koji se kontinualno unapređuju. Naučni cilj rada je kvantifikacija stvarne veličine kapaciteta za oporavak organizacija koje su zavisne od ICT. Imajući u vidu da je reč o modelu za procenu kapaciteta za oporavak, u samoj disertaciji je definisan model organizacije, zatim model kapaciteta za oporavak i na kraju je dat matematički opis istog pomoću teorije fazi skupova koji omogućava da se vrši analiza performansi kapaciteta za oporavak organizacije. Da bi se ostvario naučni cilj rada, primenom savremenih naučnih metoda, determinisana je struktura indikatora kapaciteta organizacije za oporavak, proučen njihov međusobni uticaj sa naglaskom na informacionu i komunikacionu opremu. U cilju detaljne analize modela, izvršeno je poređenje sa postojećim modelima.Оrganizationаl ресилиенце is relatively new scientific field andit is not thoroughly studied through its complexity and practical application. The subject of this dissertation is the development of a model to quantify organizational resilience in organizations that depend on information and communication technology (ICT). The motivation to work on this problem stems from the fact that there is no single model for the assessment of the organizational resilience that is recognized by international consensus, instead of this, there are models that deal with the resilience on the descriptive way which have to be continuously improved. The scientific objective of the dissertation is to quantify the actual size of the organizational resilience in organizations that are dependent on ICT. Bearing in mind that this is a model for the assessment of the organizational resilience, first, the organizational model is defined, then the model of organizational resilience, and in the end, a mathematical description of the model is done by using the theory of fuzzy sets, which enables the analysis of the organizational resilience performance. In order to achieve the science goal of dissertation, the structure of organizational resilience indicators is determined by application of modern scientific methods as well as analysis of their interplay with an emphasis on information and communication equipment. For the purpose of detailed analysis, comparisons with existing models is presented

TEMPORARY PACEMAKER LEAD PLACEMENT IN PATIENT WITH PERSISTENT LEFT SUPERIOR VENA CAVA

Persistent left superior vena cava represents a congenital vascular defect of the venous system, and is usually discovered accidentally. Temporary pacemaker lead placement should be performed under the fluoroscopy control, but also by using the ECG QRS morphology. Echocardiography also represents a reliable noninvasive diagnostic tool for the assessment of temporary pacemaker lead position

Evaluation and Selection of the Quality Methods for Manufacturing Process Reliability Improvement-Intuitionistic Fuzzy Sets and Genetic Algorithm Approach

The aim of this research is to propose a hybrid decision-making model for evaluation and selection of quality methods whose application leads to improved reliability of manufacturing in the process industry. Evaluation of failures and determination of their priorities are based on failure mode and effect analysis (FMEA), which is a widely used framework in practice combining with triangular intuitionistic fuzzy numbers (TIFNs). The all-existing uncertainties in the relative importance of the risk factors (RFs), their values, applicability of the quality methods, as well as implementation costs are described by pre-defined linguistic terms which are modeled by the TIFNs. The selection of quality methods is stated as the rubber knapsack problem which is decomposed into subproblems with a certain number of solution elements. The solution of this problem is found by using genetic algorithm (GA). The model is verified through the case study with the real-life data originating from a significant number of organizations from one region. It is shown that the proposed model is highly suitable as a decision-making tool for improving the manufacturing process reliability in small and medium enterprises (SMEs) of process industry

Evaluation and Selection of the Quality Methods for Manufacturing Process Reliability Improvement-Intuitionistic Fuzzy Sets and Genetic Algorithm Approach

The aim of this research is to propose a hybrid decision-making model for evaluation and selection of quality methods whose application leads to improved reliability of manufacturing in the process industry. Evaluation of failures and determination of their priorities are based on failure mode and effect analysis (FMEA), which is a widely used framework in practice combining with triangular intuitionistic fuzzy numbers (TIFNs). The all-existing uncertainties in the relative importance of the risk factors (RFs), their values, applicability of the quality methods, as well as implementation costs are described by pre-defined linguistic terms which are modeled by the TIFNs. The selection of quality methods is stated as the rubber knapsack problem which is decomposed into subproblems with a certain number of solution elements. The solution of this problem is found by using genetic algorithm (GA). The model is verified through the case study with the real-life data originating from a significant number of organizations from one region. It is shown that the proposed model is highly suitable as a decision-making tool for improving the manufacturing process reliability in small and medium enterprises (SMEs) of process industry

Impact of choice of stabilized hysteresis loop on the end result of investigation of high-strength low-alloy (hsla) steel on low cycle fatigue

High strength low-alloy steel under low cycle fatigue at a certain level of strain controlled achieve stabilized condition. During the fatigue loading stabilized hysteresis loop is determined, which typical cycle of stabilization is calculated as half number of cycles to failure. Stabilized hysteresis loop is a representative of all hysteresis and it's used to determine all of the parameters for the assessment of low cycle fatigue. This paper Shows comparison of complete strain-life curves of low cycle fatigue for two chosen stabilized hysteresis loop cycles of base metal HSLA steel marked as Nionikral 70

Non - desctructive testing of pressure vessels – Application of SolidWorks

This paper describes application of parametric software for drawing and modelling on testing of pressure vessels. The used software, SolidWorks, is used to demonstrate all phases of testing: preparation of non-destructive testing (NDT) and report generation regarding test results

Analysis of the steam line damages

The methodological approach to the analysis of damage to determine the cause of failure and to repair the damage has been shown using the example of leakage and damage of a steam line for live-steam in thermal power plants and heating plants. The access presented may be applied to similar structures, and its application in preventive maintenance contributes to extension of the exploitation life of the steam lines

Прилог заштити археолошког наслеђа : нови налази касноантичких гробова некрополе Наисуса у Јагодин Мали

У раду су представљени прелиминарни резултати заштитних истраживања касноантичке-ранохришћанске некрополе Наисуса, у градској четврти Јагодин Мали, и проблеми заштите некрополе као целине у време убрзаних инфраструктурних и других грађевинских радова у поменутој четврти