Results 71 to 80 of about 16,727 (258)

The development of advanced creep constitutive equations for high chromium steel P91 at low stress range [PDF]

open access: yes, 2013
Diffusion dominates the creep deformation at low stress range for high chromium steel P91. Brittle creep fracture is caused by cavity nucleation, growth and coalescence of cavities and large precipitates (Laves phase and M23C6) at grain boundary under ...
An, Lili, Lu, Zhongyu, Xu, Qiang
core  

Experiences of Individual and Collective Stigma Resulting From the 2008–9 Witch‐Hunts Carried Out by the Gambian Dictatorship: Implications for Transitional Justice

open access: yesJournal of Community &Applied Social Psychology, Volume 35, Issue 4, July/August 2025.
ABSTRACT Yahya Jammeh's 22‐year rule of The Gambia was marked by gross human rights violations, including torture, extrajudicial killings, and enforced disappearances. In 2008–09, Jammeh embarked on a “witch hunt” campaign, mostly targeting poor and elderly men and women.
W. Mick L. Finlay   +7 more
wiley   +1 more source

Material Challenges and Alloy Selection for Particle/s‐CO2 Heat Exchangers in Concentrated Solar Power Systems

open access: yesAdvanced Engineering Materials, Volume 27, Issue 10, May 2025.
Combining supercritical CO2 (s‐CO2) cycles with particle‐based heat transfer media holds great potential in concentrated solar power plants but poses enormous material challenges. The particle/s‐CO2 heat exchanger must withstand extreme conditions, including high temperatures, pressures, CO2 corrosion, and erosion.
Mathias Christian Galetz   +5 more
wiley   +1 more source

Impact of Kr and Ar seeding on D retention in ferritic-martensitic steels after high-fluence plasma exposure

open access: yesNuclear Materials and Energy, 2018
Total deuterium (D) retention from the bulk material of reduced-activation ferritic-martensitic (RAFM) steel Eurofer’97 (EU’97) and commercial ferritic-martensitic grade P92 was traced experimentally by means of thermal desorption spectroscopy (TDS) and ...
Y. Martynova   +10 more
doaj   +1 more source

An Unusual Encounter: Mycobacterium Paratuberculosis Infection in Wild Sheep

open access: yesVeterinary Medicine and Science, Volume 11, Issue 3, May 2025.
This study reports Johne's disease (JD) in Isfahan wild sheep, marking the first documented case in Iran's wild ruminants. The disease, caused by Mycobacterium avium subspecies paratuberculosis (MAP), was confirmed through PCR and histopathological examination.
Javad Abbasi   +7 more
wiley   +1 more source

Forecasting the distribution of precipitate diameters in the presence of changes in the structure of the material

open access: yesArchives of Metallurgy and Materials, 2017
The results of investigations on the microstructure of T23 and T24 low-alloy steels as well as P91 and P92 high-chromium steels in the as-received condition and after 70.000 h annealing at 550-650°C are presented.
Zieliński A., Miczka M., Golański G.
doaj   +1 more source

The present SP tests for determining the transition temperature TSP on "U" notch disc specimens [PDF]

open access: yes, 2017
The principal difference between the small punch (SP) testing technique and standardized impact testing lies in the fact that the SP tests carried out in accordance with CWA 15627 Small Punch Test Method for Metallic Materials use disc-shaped test ...
Dorazil, Ondřej   +2 more
core   +1 more source

‘It's extremely weird to understand UK culture when you don't live there and just study from abroad’: An empirical investigation of internationalisation at a distance perspectives

open access: yesBritish Journal of Educational Technology, Volume 56, Issue 2, Page 947-966, March 2025.
Abstract Following the conceptualisation of a third space of internationalisation at a distance (IaD) in this study, we aim to explore how international students at the largest university in Europe, the Open University, might consider their own identities and perspectives.
Bart Rienties, Ruslan Ramanau
wiley   +1 more source

Development of Continuous Casting Round Billet for P92 Heat-resistant Steel for Ultra-supercritical Boiler Tubes [PDF]

open access: yesTeshugang
The production process of P92 heat-resistant steel continuous casting billets (ϕ380 mm-ϕ1 000 mm) for ultra-supercritical boiler tubes was introduced by Special Steel Company of Ma'anshan Iron and Steel, the process involved electric furnace/converter ...
Yang Zhiqiang, Gong Zhixiang, Wang Kaizhong, Hu Fangzhong, Chen Enxin
doaj   +1 more source

Consecutive Double Letters [PDF]

open access: yes, 2018
A list of words that contain three or more sets of double letters in consecutive ...
Grant, Jeff
core   +1 more source

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