Actual load, material characteristics and other quantities often differ from the design values. This can cause worse function, shorter life or failure of a civil engineering structure, a machine, vehicle or another appliance. The paper shows main causes of the uncertainties and deviations and presents a systematic approach and efficient tools for their elimination or mitigation of consequences....

In a railway signalling system, various safety technologies based on fail-safe concept have been developed and applied. They are having contributed to improve or enhance safety of railway traffic. In Japan, an importance of systematic approach to realise safety has been pointed out since 1970’s, and in recent years, a safety analysis which is based on FTA, FMEA and so on is performed commonly i...

PG. Pradjekan merupakan perusahaan manufaktur yang memiliki andil dalam pasokan gula negeri. Gula dihasilkan berasal dari tebu melewati 5 stasiun proses produksi yakni gilingan, pemurnian, penguapan, masakan, dan putaran. Pada setiap banyak melibatkan mesin – berukuran besar alat-alat potensi risiko operasional cukup tinggi dapat menimbulkan bahaya hingga mengakibatkan kecelakaan kerja pada pek...

Generally fuzzy sets are used to analyze the fuzzy system reliability. Here intuitionistic fuzzy set theory has been used for analyzing the fuzzy system reliability. To analyze the fuzzy system reliability, the reliability of each component of the system is considered as a triangular intuitionistic fuzzy number. At first triangular intuitionistic fuzzy number and their arithmetic operations are...

Background: A variety of gas heaters are used in residential, administrative, and commercial buildings Iran. Home packages (HP) central heating boiler rooms (CHBRs) among the most common types systems that can be damaged during earthquakes and, thus, harm building residents. Methods: By doing a survey an interview 50 residential District 16 Tehran, risks these facilities were assessed from view...

Aim: To develop a systematic approach to detect and prevent clinical risks in complementary medicine (CM) and increase patient safety through the analysis of activities in homeopathy and acupuncture centres in the Tuscan region using a significant event audit (SEA) and failure modes and effects analysis (FMEA). Methods: SEA is the selected tool for studying adverse events (AE) and detecting the...

Failure mode and effects analysis (FMEA) is one of the well-known techniques of quality management that is used for continuous improvements in product or process designs. While applying this technique, determining the risk priority numbers, which indicate the levels of risks associated with potential problems, is of prime importance for the success of application. These numbers are generally at...

In this paper, system reliability allocation using BN(Bayesian Network) was researched. The relationship between system failure and component failure can be expressed by probability importance degree, structure importance degree and key importance degree in FTA (Fault Tree Analysis). BN supplies a new method to reflect the importance of components in system. That is the conditional failure prob...