Results 61 to 70 of about 2,897 (207)

Multiple comparison graph illustrating the average mTBF of the examined tumors according to their WHO grade.

open access: yes, 2014
All data are plotted by dots (circles), the mean values in each group by triangles, and the 95% CI by bars. mTBF is measured in ml/100 g/min.
Christian Braun (294850)   +6 more
core   +1 more source

Analisis Preventif Maintenance pada Forklift dan Reach Truck dengan Metode Menghitung Mean Time Between Failure (MTBF) dan Mean Time to Repair (MTTR) di PT Medan Distribusindo Raya [PDF]

open access: yes
Penelitian ini bertujuan untuk menganalisis efektivitas preventive maintenance pada forklift dan reach truck di PT Medan Distribusindo Raya melalui perhitungan Mean Time Between Failure (MTBF), Mean Time To Repair (MTTR), dan Risk Priority Number (RPN ...
Novarika, Wirda   +2 more
core   +3 more sources

Research on Multidimensional Application Effect Evaluation of Pipeline Fiber‐Optic Early Warning System

open access: yesJournal of Sensors, Volume 2026, Issue 1, 2026.
Despite the continuous improvement in the technical performance of fiber‐optic early warning systems, their actual application results in preventing third‐party intrusion into oil and gas pipelines are often less than ideal. This issue stems largely from the lack of comprehensive postdeployment evaluation methodologies, making it difficult to identify ...
Liangguo Liu   +7 more
wiley   +1 more source

High‐Performance and Space‐Qualified L‐Band to Ka‐Band Up‐Converter Based on Hybrid Local‐Oscillator Architecture

open access: yesInternational Journal of RF and Microwave Computer-Aided Engineering, Volume 2026, Issue 1, 2026.
This paper proposes a high‐reliability design for a space‐qualified L‐Ka (band) up‐converter used in millimeter‐wave communication systems. The design addresses key challenges related to phase noise, image rejection, output power, and environmental adaptability.
Dingzhan Yu   +8 more
wiley   +1 more source

Assessing Reliability in Manufacturing Systems by a New Arrangement of the Mean Time Between Failures (MTBF)

open access: yesمجلة النهرين للعلوم الهندسية
This work has studied the size of the mean time between failures (MTBF) because it has a vital role in assessing reliability in manufacturing systems.
Abdulkhalek M. Kadir
doaj   +1 more source

Bayesian Estimation of Failure Rates in Two‐Unit Series Systems: Analyzing Train Brake Systems

open access: yesModelling and Simulation in Engineering, Volume 2026, Issue 1, 2026.
This study investigates the failure rates of train braking systems, recognizing their pivotal role in vehicle performance. Using a Bayesian estimation approach, the study focuses on parameterizing the failure rates of two brakes arranged in series to form a two‐unit train brake system. A bivariate exponential model, accommodating varying failure rates,
Sohail Ahmad   +8 more
wiley   +1 more source

Role of Medium-Term Budget Framework (MTBF) in accomplishing Public Financial Management (PFM) Goals

open access: yes, 2023
MTBFs generally cover the preparation, execution, and monitoring of multiannual budget plans and encompass expenditure and revenue predictions. Overall, a well-designed MTBF reflects the impact of past budgetary obligations and the future cost of new ...
Rahman, M (via Mendeley Data)
core   +1 more source

Computational Modeling of Tetralayer Graphene/h‐BN/MoS2/Phosphorene Heterostructured Sensors for Real‐Time Fault Detection and Predictive Maintenance of High‐Voltage Power Transmission Lines

open access: yesAdvanced Physics Research, Volume 4, Issue 12, December 2025.
A fully simulation‐based study integrating graphene/h‐BN/MoS2/phosphorene heterostructures for fault detection in high‐voltage power lines. Coupled DFT‐FEA models predict mechanical, thermal, discharge, and EMI performance with >99.7 % accuracy. The work establishes a multi‐physics computational paradigm for predictive maintenance and digital‐twin ...
Arash Vaghef‐Koodehi   +1 more
wiley   +1 more source

Descriptive statistics and comparison of EFS and mTBF values for low-perfused and high-perfused gliomas.

open access: yes, 2014
*P = 0.0012;**P = 0.0013.N: number of patients; EFS: mean of event-free survival in days ± SD; mTBF: average of mTFB values in ml/100 g/min ± SD.
Christian Braun (294850)   +6 more
core   +1 more source

Redundancy Strategies for Hydrogen Injection Into Natural Gas Infrastructure: An Analysis of System Reliability

open access: yesEnergy Science &Engineering, Volume 13, Issue 11, Page 5672-5683, November 2025.
Study boundary and subsystem decomposition of the hydrogen‐injection facility: (1) Safety System, (2) Hydrogen System, (3) Electrolyzer, Power Supply, and Lye Preparation and Circulation, (4) Cooling System, (5) Potassium Hydroxide System, and (6) Fresh Water System.
Finn Börje Wesemeyer, Karsten Müller
wiley   +1 more source

Home - About - Disclaimer - Privacy