Results 21 to 30 of about 1,888 (168)

Applying LOPA and fuzzy logic to identify SIL requirement for safety critical functions in a direct reduction iron industry

open access: yesAlexandria Engineering Journal, 2020
LOPA11 All acronym meanings can be found in the nomenclature table at the end of the article. (Layer of Protection Analysis), is a semi-quantitative hazard analysis technique that can be used after a Qualitative Hazard Analysis Techniques such as HAZOP ...
Ahmed Salaheldine Darwish   +3 more
doaj   +1 more source

Reliability, Availability, Maintainability, and Safety Analysis of Finger Joint Fu-King Furnimate Machine in Wood Manufacturing Industry

open access: yesJurnal Ilmiah Teknik Industri, 2021
The objective of this research was to investigate the performance of the Finger Joint Fu-King Furnimate machine, especially for the most critical component of this machine. Based on historical data of machine damage, the Finger Joint Fu-King Furnimate is
Tegar Tri Nugraha   +2 more
doaj   +1 more source

Designing Control and Protection Systems with Regard to Integrated Functional Safety and Cybersecurity Aspects

open access: yesEnergies, 2021
This article addresses current problems of risk analysis and probabilistic modelling for functional safety management in the life cycle of safety-related systems.
Marcin Śliwiński, Emilian Piesik
doaj   +1 more source

SIL Allocation of APM Based on MODSafe Method

open access: yesChengshi guidao jiaotong yanjiu
Objective APM (automated people mover) has very high requirements for safety, and the existing SIL (safety integrity level) allocation method cannot meet the demand of APM projects efficiently and accurately. In order to ensure the safety and reliability
WANG Yixian, CHEN Zhen, GUAN Peiyao
doaj   +1 more source

Functional Safety Analysis and Design of Sensors in Robot Joint Drive System

open access: yesMachines, 2022
The reliable operation of the sensors of robot joint drive systems (RJDs) is a key factor in ensuring the safety of equipment and personnel. Over the years, additional safety-related systems have been designed to prevent safety incidents caused by robot ...
Lingyu Chen   +3 more
doaj   +1 more source

Risk Assessment of an Off-Site Hydrogen Refueling Station: A Hybrid IEC 61511-CCPS LOPA Framework

open access: yesEnergies
Off-site hydrogen refueling stations (HRS) handle large volumes of high-pressure hydrogen, requiring precise and systematic risk-reduction strategies. In this study, a Hazard and Operability (HAZOP) analysis was performed for an off-site HRS, and Layer ...
Yonggyu Kim   +3 more
doaj   +1 more source

Engineered Microvascular Model of the Blood–Brain–Tumor Barrier Reveals Endothelial Remodeling in Diffuse Midline Glioma

open access: yesAdvanced Healthcare Materials, EarlyView.
We developed a patient‐derived, functional microfluidic model of the diffuse midline glioma (DMG) blood–brain–tumor barrier (BBTB) comprised of endothelial cells, astrocytes, pericytes, and tumor cells. The system forms perfusable microvasculature, reveals the BBTB retains vascular integrity, identifies DMG‐specific transcriptomic changes distinct from
Kimberly R. Bennett   +7 more
wiley   +1 more source

SIL assessment of safety instrumented systems in oil and gas stations based on STPA-Bow-tie

open access: yesJournal of Safety Science and Resilience
The growing imperative for safe and intelligent operation of long-distance oil and gas pipeline systems has led to increased deployment of interlock systems at processing stations, but their reliability and compliance are difficult to guarantee.
Wencong Ye   +4 more
doaj   +1 more source

Soft Skins With Reversible Thickness Morphing: Materials, Mechanisms, and Applications

open access: yesAdvanced Materials, EarlyView.
Evolution of electronic skin (e‐skin) technologies toward adaptive, multifunctional soft skins. Phase I highlights early rigid and discrete sensory interfaces. Phase II shows the transition toward flexible, stretchable, and large‐area e‐skin. Phase III captures the emergence of computational e‐skin.
Oliver Ozioko   +2 more
wiley   +1 more source

Flexible Tactile Actuator Arrays With Integrated Electroosmotic Pumps for Wearable Haptic Systems

open access: yesAdvanced Materials Technologies, EarlyView.
1 ×$\times$ 9 and 4 ×$\times$ 4 flexible tactile actuator arrays integrating electroosmotic pumps are developed to deliver pressure and vibration feedback on wearable platforms. Their thin, compliant structure conforms seamlessly to curved body surfaces, providing intimate contact and enhanced haptic sensations.
Heejin Yu, Joonbum Bae
wiley   +1 more source

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