Results 51 to 60 of about 377,522 (383)

Study on Pitting Behavior of Welding Joint of Bimetal Composite Pipes in Suspended Sulfur Solution

Crystals
Due to the severe corrosion environment, corrosion problems caused by sulfur deposition are one important reason for the failure of composite pipes in the long-term service process when Incoloy825/X65 bimetallic composite pipes are used in high-sulfur ...
Yuwei Sun, Sirong Yu, Bingying Wang, Lin Liu, Enyang Liu, Tao Feng   +5 more
doaj   +1 more source

Relation of tangential force and pitting limit at rolling-sliding contact surface under mixed lubrication condition

Nihon Kikai Gakkai ronbunshu, 2015
Design for pitting (surface crack initiated rolling fatigue wear) at rolling-sliding contact surface under mixed lubrication condition is based on the combination of maximum contact pressure (Hertzian stress) and lubrication condition (ratio of surface ...
Susumu MATSUMOTO
doaj   +1 more source

Past and future of a century old Citrus tristeza virus collection: a California citrus germplasm tale. [PDF]

, 2013
Citrus tristeza virus (CTV) isolates collected from citrus germplasm, dooryard and field trees in California from 1914 have been maintained in planta under quarantine in the Citrus Clonal Protection Program (CCPP), Riverside, California. This collection,
Georgios eVidalakis, Greg eGreer, James eDiaz, Jinbo eWang, Jinbo eWang, John eBash, Orhan eBozan, Ramon eSerna, Raymond K. Yokomi, Richard F Lee, Robert R Krueger, Sun-Jung eKwon, Svetlana Y Folimonova, Tavia eRucker, Tyler eDang   +14 more
core   +2 more sources

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

Applying infectious clones and untargeted metabolite profiling to characterize citrus tristeza virus-induced stem pitting in citrus

Scientific Reports
Citrus tristeza virus (CTV) causes economically important stem pitting in sensitive citrus types however the exact mechanisms of stem pitting development in citrus remain unclear.
D. J. Aldrich, M. Taylor, R. Bester, C. A. El-Mohtar, J. T. Burger, H. J. Maree   +5 more
doaj   +1 more source

Design of straight bevel gear for pitting resistance [PDF]

FME Transactions, 2018
Based on the Tredgold geometric approximation, a transparent contact stress capacity model for straight bevel gears is presented. A bevel load factor is defined which provides a kinetic link between the physical bevel gear and virtual spur gear.
Osakue Edward E., Lucky Anetor
doaj  

Microstructure and corrosion evolution of additively manufactured aluminium alloy AA7075 as a function of ageing [PDF]

, 2019
Additively manufactured high strength aluminium alloy AA7075 was prepared using selective laser melting. High strength aluminium alloys prepared by selective laser melting have not been widely studied to date. The evolution of microstructure and hardness,
Birbilis, Nick, De Lima, Paula R., Gharbi, Oumaima, Jiang, Derui, Kairy, Shravan K., Nicklaus, Juan   +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

Efeito do método de preparo do solo na produtividade de Eucalyptus grandis x Eucalyptus urophylla em Neossolo Quartzarênico e Latossolo. Effect of soil preparation method in productivity of Eucalyptus grandis x Eucalyptus urophylla in Quartzarenic Neosol and Red Oxisol. [PDF]

Revista do Instituto Florestal, 2013
O preparo de solo é uma das práticas mais antigas no cultivo de plantas. Atualmente, a subsolagem é o método mais difundido e utilizado em povoamentos florestais.
Rodrigo Eiji HAKAMADA, Cristiane LEMOS, Renato Meulman SILVA, Clóvis ANDERLEY   +3 more
doaj  

Exploitation of Hertz's contact pressures in friction drives

Research in Agricultural Engineering, 2006
The paper is intent on the applications of equations which describe the Hertz's surface pressures in friction drives. In the paper the reduced equations are derived, which are useful to the surface pressures calculation in friction drives when ball ...
D. Herák, R. Chotěborský, A. Sedláček, E. Janča   +3 more
doaj   +1 more source