Results 61 to 70 of about 795,171 (330)

Strength Deterioration of Concrete in Sulfate Environment: An Experimental Study and Theoretical Modeling

Advances in Materials Science and Engineering, 2015
Sulfate corrosion is one of the most important factors responsible for the performance degradation of concrete materials. In this paper, an accelerated corrosion by a sulfate solution in a dry-wet cycle was introduced to simulate the external sulfate ...
Yingwu Zhou, Hao Tian, Lili Sui, Feng Xing, Ningxu Han   +4 more
doaj   +1 more source

Funding the Extraordinary: An Evaluation of The Kresge Foundation Arts and Culture Program's Institutional Capitalization Grantmaking [PDF]

, 2015
In undertaking an assessment of Kresge's Capitalization Program, NFF applied its own high-level framework to help answer Kresge's primary research questions and assess the progress of each grantee in meeting its stated capital targets. NFF has found that
Angela Francis, Casey Johnson, Dominique Hugg, Kathleen Hegyesi   +3 more
core  

Life‐Threatening Bradycardia in Anti‐NMDA‐Receptor Encephalitis and a Novel Use for Permanent Pacing

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Pediatric anti‐NMDA receptor encephalitis (pNMDARE) is an autoantibody‐mediated disorder that can cause severe autonomic dysfunction, including symptomatic bradycardia and asystole. Dysautonomia can last for years, making it very challenging to manage.
Sarah Tucker, Abhijit Das, Andres Jimenez, Areeba Basit, Yike Jiang, Emily A. Smitherman, Heather Van Mater, Taylor Howard, Alexander J. Sandweiss, Kristen S. Fisher   +9 more
wiley   +1 more source

Monitoring the reduction in shrinkage cracking of mortars containing superabsorbent polymers [PDF]

, 2017
Ultra-high performance concrete (UHPC) is characterized by a low water-to-cement ratio, leading to improved durability and mechanical properties. However, the risk for autogenous shrinkage and cracking due to restrained shrinkage increases, which may ...
Aggelis, Dimitrios G., De Belie, Nele, De Boe, Emanuel, Lefever, Gerlinde, Snoeck, Didier, Van Hemelrijck, Danny   +5 more
core  

Asymptotic homogenisation in strength and fatigue durability analysis of composites [PDF]

This is the post-print version of the Article. Copyright @ 2003 Kluwer Academic Publishers.Asymptotic homogenisation technique and two-scale convergence is used for analysis of macro-strength and fatigue durability of composites with a periodic structure
A. N. Kolmogorov, D. Cioranescu, G. Allaire, N. Bakhvalov, S. E. Mikhailov, V. A. Trenogin   +5 more
core   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

Effect of thermal cycling frequency on the durability of Yb-Gd-Y-based thermal barrier coatings [PDF]

, 2019
The effects of thermal cycling frequency and buffer layer on the crack generation and thermal fatigue behaviors of Yb–Gd–Y-stabilized zirconia (YGYZ)-based thermal barrier coatings (TBCs) were investigated through thermally graded mechanical fatigue ...
Choi, Baig-Gyu, Jung, Yeon-Gil, Lu, Zhe, Lyu, Guanlin, Park, Hyeon-Myeong, Zhang, Jing   +5 more
core   +1 more source

Geometric Optimization and Mechanical Performance Enhancement of Auxetic Structures for High‐Impact Applications Through Fused Deposition Modeling

Advanced Engineering Materials, EarlyView.
This study explores the mechanical performance of three auxetic structures, identifying a re‐entrant‐star hybrid as the most effective for impact absorption. Finite element simulations and experiments demonstrate significant gains in energy absorption and flexural strength after geometric optimization. This study investigates the mechanical performance
Malik Hassan, Manjusri Misra, Alexander Bardelcik, Stefano Gregori, Amar K. Mohanty   +4 more
wiley   +1 more source

Mechanical properties of aeolian sand cemented via microbially induced calcite precipitation (MICP)

Scientific Reports
The cementation of desert aeolian sand is a key method to control land desertification and dust storms, so an economical, green and durable process to reach the binding between sand grains needs to be searched. The method based on the microbially induced
Gang Li, Yi-jia Zhang, Xue-qing Hua, Jia Liu, Xing Liu   +4 more
doaj   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

Advanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar, David Osman Busse, Maximilian Sprengel, Domenico Furfari, Marc‐André Nielsen, Guilherme Abreu Faria, Jérémy Epp   +6 more
wiley   +1 more source