Results 131 to 140 of about 1,984,159 (297)

Observer‐Based Adaptive Event‐Triggered Tracking Control for Fuzzy TS Systems With Premise Mismatch

International Journal of Adaptive Control and Signal Processing, EarlyView.
This paper presents an adaptive logistic event‐triggered observer‐based tracking controller for Takagi‐Sugeno fuzzy systems under constrained inputs and network delays. Leveraging a hybrid LMI and Secretary Bird Optimization approach, this strategy significantly minimizes communication overhead and computational burden while ensuring optimal reference ...
Oussama Djadane, Salama Makni, Mourad Kchaou, Ahmed El Hajjaji   +3 more
wiley   +1 more source

A Retrospective Evaluation of Treatments with Implant-Supported Maxillary Overdentures

, 2005
Background: Considerably lower success rates have been presented for implant-supported overdentures in the maxilla compared with the mandible. Purpose: The aim of the study was to report the outcome of implant-supported maxillary overdentures from one ...
Widbom, Christin,, Kronström, Mats,, Söderfeldt, Björn,   +2 more
core   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

“Compression Necrosis” – A Cause of Concern for Early Implant Failure? Case Report and Review of Literature

Roshni Ramesh,* Anoop Sasi,* Shahana C Mohamed, Sonia P Joseph Department of Periodontology, Government Dental College, Thiruvananthapuram, Kerala, India*These authors contributed equally to this workCorrespondence: Roshni Ramesh, Department ...
Joseph SP, Mohamed SC, Sasi A, Ramesh R
core  

Impact of Age-Related Bone Density Variations on Dental Implant Stability and Success Rates: A Retrospective Analysis

International Dental Journal
Background: Dental implant success depends on factors such as age and bone density; this study evaluates how age-related bone density changes affect implant stability and survival.
Ting Gong, Li-qiu Wang, Xu Tong, Yu Zhang, Lin-jing Shu   +4 more
doaj   +1 more source

Immunological Treatment of Implantation Failure

Annals of the New York Academy of Sciences, 1991
DE PLACIDO G, ZULLO F, COLACURCI, Nicola, PERRONE D, NAZZARO A, PAOLILLO F, MONTEMAGNO U.   +6 more
openaire   +5 more sources

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Flexural Behavior of 3D‐Printed Porous Bouligand‐Structured Polymers: Influence of Pitch Angle and Porosity

Advanced Engineering Materials, EarlyView.
This study examines how helicoidal architectures with different porosities respond to bending. Adjusting layer angle and spacing in 3D‐printed polymers reveals clear tradeoffs between stiffness, strength, and energy absorption. Experiments and simulations highlight designs that distribute stress effectively, offering pathways for optimizing lightweight
Praveenkumar Subhash Patil, Edward D. McCarthy, Parvez Alam   +2 more
wiley   +1 more source

Implant failure in lower limb long bone diaphyseal fractures at a Tertiary Hospital in Ile- Ife, Nigeria

Nigerian Postgraduate Medical Journal, 2014
Aims and Objectives: This included determining aetiology of failure and comparing the failure rate in implant fixations using solid intramedullary nail and DCP.
O Esan, I C Ikem, E A Orimolade, O T Esan   +3 more
doaj  

Fracture Surface Analysis of the Fatigue-Failed Titanium Dental Implant

Успехи физики металлов
In recent years, the osseointegrated titanium dental implants have revolutionised the field of dentistry owing to their ability to restore oral function. Thus, they have been widely used for decades with high survival and success rates.
M.O. Vasylyev, B.M. Mordyuk, S.M. Voloshko, and P.O. Huryn
doaj   +1 more source