Results 201 to 210 of about 362,650 (298)

Infrared Thermographic Assessment of Fatigue Behavior in Bolted Composite Joints

open access: yesFatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT This study investigates the temperature evolution of bolted thick glass fiber reinforced polymer composites during fatigue testing. Three different adherend thicknesses (8, 10, and 12 mm) and three different bolt tightening torques (30, 40, and 50 N·$$ \cdotp $$m were considered to evaluate the effects of adherend thickness and bolt tightening
Tolga Topkaya   +2 more
wiley   +1 more source

Efficacy of Air‐Polishing in Managing Biofilm Formation in Patients Wearing Fixed Orthodontic Appliances: A Single‐Blind, Split‐Mouth, Randomised Controlled Trial

open access: yesInternational Journal of Dental Hygiene, EarlyView.
ABSTRACT Objectives To investigate the efficacy of air‐polishing in managing biofilm formation in patients wearing fixed orthodontic appliances. Methods This pilot study was designed as a single‐blind split‐mouth randomised controlled study. Twenty patients undergoing fixed orthodontic treatment were enrolled.
James Millar   +4 more
wiley   +1 more source

Multicenter RCT 6‐Year Survival of Zirconia‐Reinforced Lithium Silicate Endocrowns: 90° Shoulder Versus Butt‐Joint Margins

open access: yesInternational Endodontic Journal, EarlyView.
ABSTRACT Objectives Margin design significantly influences endocrown biomechanical performance. Nevertheless, long‐term clinical data comparing margin designs within a singular zirconia‐reinforced lithium silicate (ZLS) system remain scarce. This study reports the 6‐year follow‐up results of a multicenter, prospective, randomized, assessor‐blinded ...
Ping Xiao   +9 more
wiley   +1 more source

Effectiveness of Periodic Repolishing on the Surface and Mechanical Properties of Resin‐Based CAD/CAM Materials After Different Cycles of Combined Simulated Toothbrushing and Mechanical Cycling

open access: yesJournal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective This study aimed to evaluate the effectiveness of periodic repolishing on the surface and mechanical properties of resin‐based CAD/CAM materials subjected to combined mechanical cycling and simulated toothbrushing, with or without periodic repolishing.
Gabriel Nunes Sampaio   +4 more
wiley   +1 more source

Protecting While Promoting? The Limits of Agroindustry‐Driven Pesticide Safety in Ugandan Smallholder Agriculture

open access: yesJournal of Agrarian Change, EarlyView.
ABSTRACT Pesticide use is expanding rapidly across sub‐Saharan Africa, while regulatory oversight and public protection structures remain weak, leaving smallholder farmers exposed to mounting health and environmental risks. In response, agrochemical industry actors have launched ‘safe use’ initiatives that emphasize training and personal protective ...
Elina Andersson   +2 more
wiley   +1 more source

Tires back into tires: devulcanization of tire rubbers

open access: yes, 2012
Saiwari, Sitisaiyidah   +2 more
openaire   +1 more source

Effects of printing temperature and post‐curing duration on the dimensional reproducibility and fracture load of 3D‐printed dental prostheses: An exploratory study

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose This in vitro study aimed to evaluate the effects of printing temperature and post‐curing duration on the dimensional reproducibility and mechanical properties of three‐dimensional (3D)–printed dental prostheses. Materials and Methods Photopolymer specimens were fabricated using a stereolithographic 3D printer at two temperatures: room
Ji‐Min Lee   +2 more
wiley   +1 more source

Estimating National and Foreign Trade Elasticities Using Generalized Transport Costs

open access: yesJournal of Regional Science, Volume 65, Issue 2, Page 471-496, March 2025.
ABSTRACT We introduce the definition of two distinct trade elasticities corresponding to imports from regions located in the same country (national elasticities) and foreign regions located in other countries (foreign elasticities). We resort to a three‐tier nested CES utility structure to derive the corresponding demand gravity equations.
José L. Zofío   +3 more
wiley   +1 more source

From Organizational Resilience Capability to Firm Performance: A Time‐Lagged Investigation

open access: yesJournal of Product Innovation Management, EarlyView.
ABSTRACT An organizational resilience capability is essential for firms to adapt in an ever‐changing world characterized by diverse crises and adversities. However, the mechanisms and contingencies needed to harness and channel organizational resilience capability remain uncertain.
Yi‐Ying Chang   +5 more
wiley   +1 more source

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