Results 31 to 40 of about 367,224 (266)

Microstructure Evolution of New Al-Zn-Mg-Cu Alloy During Hot Deformation

open access: yesCailiao gongcheng, 2017
Microstructure evolution during hot deformation of a new Al-Zn-Mg-Cu alloy was investigated by Gleeble-1500D thermal-mechanical simulator at 300-450℃ and strain rate of 0.001-10s-1.The microstructure features at different hot deformation conditions were ...
ZHANG Kun   +5 more
doaj   +1 more source

The dynamics of starvation and recovery [PDF]

open access: yes, 2017
The eco-evolutionary dynamics of species are fundamentally linked to the energetic constraints of its constituent individuals. Of particular importance is the interplay between reproduction and the dynamics of starvation and recovery. To elucidate this interplay, we introduce a nutritional state-structured model that incorporates two classes of ...
Yeakel, Justin D.   +2 more
openaire   +2 more sources

Deformation Behavior and Dynamic Recovery Kinetics of Ultrahigh Strength Steel BR1500HS at Elevated Temperature

open access: yesHigh Temperature Materials and Processes, 2015
The flow behaviors of ultrahigh strength steel BR1500HS at elevated temperature were studied by performing hot tension tests at the temperatures of 773 K, 873 K, 1023 K and 1173 K, and strain rates of 0.01 s−1, 0.1 s−1 and 1 s−1 on a Gleeble 3500 thermo ...
Xia Yufeng   +4 more
doaj   +1 more source

The Formation of Strong {100} Texture by Dynamic Strain-Induced Boundary Migration in Hot Compressed Ti-5Al-5Mo-5V-1Cr-1Fe Alloy

open access: yesMetals, 2017
The microstructure and texture evolution of Ti-5Al-5Mo-5V-1Cr-Fe alloy during hot compression were investigated by the electron backscatter diffraction technique.
Kai Li, Ping Yang
doaj   +1 more source

Softening Mechanisms of the AISI 410 Martensitic Stainless Steel Under Hot Torsion Simulation [PDF]

open access: yesMaterials Research, 2017
This study investigated the softening mechanisms of the AISI 410 martensitic stainless steel during torsion simulation under isothermal continuous in the temperature range of 900 to 1150 °C and strain rates of 0.1 to 5.0s-1.
Thiago Santana de Oliveira   +5 more
doaj   +1 more source

A Dynamic Contagion Risk Model with Recovery Features [PDF]

open access: yesMathematics of Operations Research, 2022
We introduce threshold growth in the classical threshold contagion model, or equivalently a network of Cramér-Lundberg processes in which nodes have downward jumps when there is a failure of a neighboring node. Choosing the configuration model as underlying graph, we prove fluid limits for the baseline model, as well as extensions to the directed case,
Hamed Amini, Andreea Minca, Agnès Sulem
openaire   +2 more sources

Strain Rate Contribution due to Dynamic Recovery of Ultrafine-Grained Cu–Zr as Evidenced by Load Reductions during Quasi-Stationary Deformation at 0.5 Tm

open access: yesMetals, 2019
During quasi-stationary tensile deformation of ultrafine-grained Cu-0.2 mass%Zr at 673 K and a deformation rate of about 10−4 s−1 load changes were performed.
Wolfgang Blum   +4 more
doaj   +1 more source

Dynamic Damage Recovery for Web Databases [PDF]

open access: yesJournal of Computer Science and Technology, 2010
In the web context, there is an urgent need for a self-healing database system which has the ability to automatically locate and undo a set of transactions that are corrupted by malicious attacks. The metrics of survivability and availability require a database to provide continuous services during the period of recovery, which is referred to as ...
Hong Zhu 0003   +3 more
openaire   +1 more source

Dynamic Social Networks in Recovery Homes [PDF]

open access: yesAmerican Journal of Community Psychology, 2013
AbstractAcute treatment aftercare in the form of sober living environments—i.e., recovery houses—provide an inexpensive and effective medium‐term treatment alternative for many with substance use disorders. Limited evidence suggests that house‐situated social relationships and associated social support are critical determinants of how successful these ...
Leonard A, Jason   +3 more
openaire   +2 more sources

Effect of Er on the Hot Deformation Behavior of the Crossover Al3Zn3Mg3Cu0.2Zr Alloy

open access: yesMetals
The effect of an erbium alloying on the hot deformation behavior of the crossover Al3Zn3Mg3Cu0.2Zr alloy was investigated in detail. First of all, Er increases the solidus temperature of the alloy. This allows hot deformation at a higher temperature. The
Maria V. Glavatskikh   +6 more
doaj   +1 more source

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