Results 31 to 40 of about 30,256,552 (351)

Failure mechanism analysis and process improvement on time-dependent dielectric breakdown of Cu/ultra-low-k dielectric based on complementary Raman and FTIR spectroscopy study

AIP Advances, 2014
Time-dependent dielectric breakdown (TDDB) is one of the most important reliability issues in Cu/low-k technology development. With continuous technology scalings to nanometer scales, TDDB issue is further exacerbated.
Dan Dan Wang, Wei Lin Wang, Maggie Yamin Huang, Alan Lek, Jeffrey Lam, Zhi Hong Mai   +5 more
doaj   +1 more source

Impact of non-cardiovascular comorbidities on the quality of life of patients with chronic heart failure: a scoping review

Health and Quality of Life Outcomes, 2020
Purpose To determine the impact of non-cardiovascular comorbidities on the health-related quality of life (HRQoL) of patients with chronic heart failure (CHF).
Josep Comín-Colet, Teresa Martín Lorenzo, Almudena González-Domínguez, Juan Oliva, Silvia Jiménez Merino   +4 more
doaj   +1 more source

Condition Monitoring of Internal Combustion Engines in Thermal Power Plants Based on Control Charts and Adapted Nelson Rules

Energies, 2021
In thermal power plants, the internal combustion engines are constantly subjected to stresses, requiring a continuous monitoring system in order to check their operating conditions. However, most of the time, these monitoring systems only indicate if the
Fernanda Mitchelly Vilas Boas, Luiz Eduardo Borges-da-Silva, Helcio Francisco Villa-Nova, Erik Leandro Bonaldi, Levy Ely Lacerda Oliveira, Germano Lambert-Torres, Frederico de Oliveira Assuncao, Claudio Inacio de Almeida Costa, Mateus Mendes Campos, Wilson Cesar Sant’Ana, Josue Lacerda, Jose Luiz Marques da Silva Junior, Edenio Gomes da Silva   +12 more
doaj   +1 more source

Unexpected failure of cast superduplex stainless steel exposed to high chlorides containing water: From failure analysis to corrosion mechanisms settlement

, 2022
This work deals with the failure analysis of a super duplex valve operating in technical waters with high chlorides content up to 80 °C. A careful fracture surfaces and microstructural characterization was combined with corrosion studies (SKPFM (Scanning
Andreatta F., Lanzutti A., Gerolin A., Fedrizzi L., Magnan M.   +4 more
core   +1 more source

Analysis of the failure and remedial measures taken after the collapse of a historical bell [PDF]

, 2021
This paper describes the collapse analysis of the historical El Jaume bell, cast in 1429, one of the bells in the Cathedral of Valencia’s Micalet bell tower (Spain). In 1992 the yoke was completely restored and given a new steel axis.
Ivorra, Salvador, Cárcel, Alfonso C., Cárcel, Alfonso Cristóbal, Torres, Benjamín   +3 more
core   +1 more source

Failure Analysis Techniques for 3D Packages

, 2022
S.178-1853D packing technologies integrate different components in three dimensions in one device to increase performance, functional density and reduce the devices footprint.
Petzold, M., Brand, S., Altmann, F.
core   +2 more sources

Contact Fatigue Behavior Evolution of 18CrNiMo7-6 Gear Steel Based on Surface Integrity

Metals, 2023
In this work, the surface integrity (surface morphology, microstructure, microhardness, residual stress) of contact fatigue (CF) samples with different numbers of running cycles was comprehensively studied.
Luji Wu, Yongxin Lv, Yalong Zhang, Anhu Li, Vincent Ji   +4 more
doaj   +1 more source

Electrical Evaluation of Oil-Immersed Power Transformers Based on Temporal Variations in Performance Index and Reliability

Advances in Electrical and Computer Engineering, 2023
In electrical systems, power transformer failure prediction is a strategic procedure aimed at ensuring the uninterrupted delivery of electricity. In this context, companies of electricity employ predictive maintenance techniques to evaluate the status ...
DIAS, Y., MARQUES, A., RIBEIRO, C., BRITO, L.   +3 more
doaj   +1 more source

V_DS and V_GS Depolarization Effect on SiC MOSFET Short-Circuit Withstand Capability Considering Partial Safe Failure-Mode

Energies, 2021
This paper presents a detailed analysis of 1200 V Silicon Carbide (SiC) power MOSFET exhibiting different short-circuit failure mechanisms and improvement in reliability by VDS and VGS depolarization.
Yazan Barazi, Frédéric Richardeau, Wadia Jouha, Jean-Michel Reynes   +3 more
doaj   +1 more source

The effect of functional electrical stimulation of the legs on cardiopulmonary function and quality of life in patients with chronic heart failure: A systematic review and meta-analysis

SAGE Open Medicine
Introduction: Functional electrical stimulation is important for the rehabilitation of patients with chronic heart failure. This meta-analysis of randomized controlled trials compared the efficacy of functional electrical stimulation versus conventional ...
Rui Zeng, Jun Chen, Yimin Wang, Qiang Liu   +3 more
semanticscholar   +1 more source