Results 141 to 150 of about 44,630 (308)

Identification and proposed control of helicopter transmission noise at the source [PDF]

open access: yes
Helicopter cabin interiors require noise treatment which is expensive and adds weight. The gears inside the main power transmission are major sources of cabin noise.
Coy, John J.   +6 more
core   +2 more sources

Loaded tooth contact analysis of spiral bevel gears with kinematically correct motion transmission

open access: yes, 2018
sponsorship: DEMETRA ...
Vivet, Mathijs   +5 more
openaire   +2 more sources

Laboratory Evaluation of the Physicochemical Properties of Novel Pre‐Mixed Putty‐Type Bioceramic Materials

open access: yesAustralian Endodontic Journal, EarlyView.
ABSTRACT This study aimed to compare the physicochemical properties of EndoSequence Root Repair Material (ERRM) Fast and CeraPutty with ProRoot MTA and Biodentine, focusing on setting time, radiopacity, microhardness, and pH. Setting time was measured using a Gilmore‐type indenter applied every 5 min until no indentation was observed (n = 15 per group).
So‐Mang Lee   +3 more
wiley   +1 more source

Progetto e analisi di ingranaggi spiroconici mediante codici di calcolo [PDF]

open access: yes
L'ampia diffusione delle ruote ipoidi e coniche a spirale (o spiroconiche) comporta la necessità di indirizzare la ricerca verso un miglioramento delle condizioni di ingranamento e una riduzione della rumorosità. Data la complessità della geometria delle
Artoni, Alessio
core  

Analysis of Solubility, pH, Antimicrobial Action and Cytotoxicity of Calcium Hydroxide Paste Associated With Ambroxol Hydrochloride

open access: yesAustralian Endodontic Journal, EarlyView.
ABSTRACT This study evaluated the association of ambroxol hydrochloride with calcium hydroxide paste as intracanal medication to enhance antimicrobial action on biofilm without affecting pH, solubility and cytotoxicity. Calcium hydroxide (CH) paste and formulations with different ambroxol concentrations were placed into artificial teeth conditioned in ...
Thaís Ferreira Rodrigues Mota   +6 more
wiley   +1 more source

Enterococcus faecalis and Endodontic Treatment Failure: A Qualitative Systematic Review of Its Role and Elimination Strategies

open access: yesAustralian Endodontic Journal, EarlyView.
ABSTRACT The aim of this study was to synthesize evidence on the influence of Enterococcus faecalis on endodontic treatment failure and strategies for its elimination. This study followed the Preferred Reporting Items for Systematic Reviews and Meta‐Analyses (PRISMA) guidelines and was registered in PROSPERO (CRD420251022741).
Francine Santos Fernandes de Lima   +1 more
wiley   +1 more source

Non-linear dynamic analysis of geared systems, part 2 [PDF]

open access: yes
A good understanding of the steady state dynamic behavior of a geared system is required in order to design reliable and quiet transmissions. This study focuses on a system containing a spur gear pair with backlash and periodically time-varying mesh ...
Houser, Donald R.   +2 more
core   +1 more source

Homogenization in strength and durability analysis of reinforced tooth filling [PDF]

open access: yes, 2002
An asymptotic homogenization procedure is employed to obtain effective elastic properties of the composite tooth filling, a homogenized macro– stress field and a first approximation to the micro-stress field, from properties of the components and applied
Mikhailov, SE, Orlik, J
core  

Morphometric and Paleobiological Insights Into Pleistocene Sicilian Wolf Populations

open access: yesActa Zoologica, EarlyView.
ABSTRACT The Pleistocene wolves (Canis lupus) from Sicily represent one of the few known insular populations of this species from that time period. Despite their potential relevance for understanding carnivore adaptations in insular contexts, no dedicated study has previously investigated their morphology and evolutionary significance.
Domenico Tancredi   +3 more
wiley   +1 more source

Oral Health Care Services, Barriers and Enablers to Maintaining Good Oral Health in Motor Neurone Disease: A Scoping Review

open access: yesCommunity Dentistry and Oral Epidemiology, EarlyView.
ABSTRACT Objectives The objective of this scoping review was to map existing literature on oral health and related care in individuals with Motor Neurone Disease (MND). Specifically, the review aimed to identify barriers and facilitators to maintaining oral hygiene, summarise available clinical guidelines and patient‐facing resources, and examine how ...
Mariam A. Khokhar   +3 more
wiley   +1 more source

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