A company, will experience a process of ups and downs where this is common thing. At the end 2020, world was shocked by corona virus pandemic in all parts world. The impact has led to confinement employees as company. So that it makes productivity decrease, especially Quality department. To deal with this, company asks make changes sample testing flow process, identify non-value-added activitie...

This paper deals with the concept of complete residuated lattice-valued (referred to as L-valued) finite tree automata. In this regard, we first define an L-valued regular tree language, and then we prove a necessary and sufficient condition for the regularity of an L-valued tree language. Furthermore, we generalize the pumping lemma for L-valued finite tree automata (L-FTA). Afterwards, the be...

European Union legislation requires organizations to assess their processes in the context of risk management. The main task management is manage all risks that can significantly affect outcome processes. article focused on evaluation pressure leaching at elevated temperature using method Fault Tree Analysis (FTA). effectivity pyrite and arsenic decomposition by oxidative influenced duration pr...

The Karian Dam Project is one of a total 48 dam construction strategic projects in Indonesia that have experienced delays. Based on Addendum 6, the targeted for completion March 2021. However, delays several works. This study discusses factors delay, location risk and work item assistance causes Project. research method used this quantitativ. Data collection was carried out using questionnaires...

Fault tree analysis is a useful probability theory-based tool for evaluating a system’s risk and reliability. Typically, fault trees are populated with basic event failure probabilities from a variety of quantitative and qualitative sources. This article presents a new methodology that combines simulation with game theory to populate a fault tree with strictly quantitative probability estimates...

Safety analysis ensuring the normal operation of an engineering system is important. The existing safety analysis methods are limited to relatively simple fact description and statistical induction level. Besides, many of them enjoy poor generality, and fail to achieve comprehensive safety evaluation given a system structure and collected information. This work describes a new safety analysis m...

PT Permata Hijau Palm Oleo (PHPO) is one of the producers in manufacturing industry that produces plastic jerrycan as cooking oil packaging. At this time, based on data researchers obtained during November 2022, company has product quality problems. There were rejects amounting to 21,134 Pcs (3%) total production 637,128 pcs. The types occur are reject topload test, droptest, brimfull parting l...

Risk is very attached to every activity. Potential risks also occur in antenna installation projects at telecommunications company vendors, which create hazardous work. The aim of the research identify causes accidents Base Transceiver Station (BTS) tower and make recommendations for ways reduce accident rate workers by using Failure Mode Effect Analysis (FMEA) Fault Tree (FTA) method. results ...