Results 31 to 40 of about 360,971 (265)

Microstructure and Properties of Eu-Ni Alloys Prepared by Levitation Melting

open access: yesMetals
With the rapid development of the nuclear power industry, the requirement for nuclear structural materials is continuously growing. Eu-Ni intermetallic alloys are promising structural candidates for nuclear applications, while relevant fundamental ...
Weichen Qiu   +6 more
doaj   +1 more source

Optimization of Heavy Reduction Process on Continuous-Casting Bloom

open access: yesMetals, 2022
Heavy reduction (HR) is an effective technique to control V segregation in continuous casting bloom, but the effect of segregation improvement is limited by the parameters such as reduction position and reduction amounts.
Bao Yang   +5 more
doaj   +1 more source

Structural analysis of sheet nickel welded joints

open access: yesMetalurgija, 2021
The paper presents an analysis of structure nickel sheet welded joints made by applying Gas Tungsten Arc Welding (GTAW) method. Based on results of metallographic examination, HV5 hardness measurements, Energy dispersive spectroscopy (EDS) and X-ray ...
M. Radoń, Z. A. Opiekun, A. Dec
doaj  

Effects of Alloying Elements on Solidification Structures and Macrosegregation in Slabs

open access: yesMetals, 2022
A Cellular Automaton-Finite Element (CAFE) model and a secondary dendrite arm spacing (SDAS) model are established to study the evolutionary behavior of the macrostructure and the secondary dendrites on a 295 × 2270 mm2 slab cross-section of experimental
Pan Zhang   +3 more
doaj   +1 more source

Extracellular matrix remodeling and immune reprogramming drive residual tumor progression of liver cancer after incomplete microwave ablation

open access: yesMolecular Oncology, EarlyView.
Incomplete microwave ablation (iMWA) of liver cancer triggers a biphasic progression in residual tumors. At Day 3, the microenvironment is characterized by acute inflammatory responses and extracellular matrix (ECM) remodeling. By Day 14, a profound shift occurs toward oncogenic signal transduction and immunosuppression, marked by macrophage ...
Yu Liu   +9 more
wiley   +1 more source

Visual imitation learning from one-shot demonstration for multi-step robot pick and place tasks

open access: yesScientific Reports
Imitation learning provides an intuitive approach for robot programming by enabling robots to learn directly from human demonstrations. While recent visual imitation learning methods have shown promise, they often depend on large datasets, which limits ...
Shuang Lu   +2 more
doaj   +1 more source

Investigation on the Duration of Action of Mg3N2 as a Grain Refiner for AZ80 Alloy

open access: yesMetals
In magnesium alloys with aluminum as an alloying component, zirconium loses its grain refinement effect as a grain refiner. Instead of zirconium, Mg3N2 can be used, and promising results have already been obtained.
Thomas Hösele   +2 more
doaj   +1 more source

USP7 inhibits FOXO1 activity in chronic lymphocytic leukaemia cells enhancing cell survival

open access: yesMolecular Oncology, EarlyView.
CLL cells rely on BCR‐mediated signalling for survival and proliferation in part through suppression of FOXO1. FOXO1 activity is regulated by a plethora of post‐translational modifications including phosphorylation and ubiquitination. We demonstrated that dual inhibition of BCR signalling and the deubiquitinase USP7 activates FOXO1, modulating its ...
Hassan N.B. Almuhanna   +8 more
wiley   +1 more source

Novel Recycling Method for Boron Removal from Silicon by Thermal Plasma Treatment Coupled with Steam and Hydrogen Gases

open access: yesMetals, 2017
Boron (B) separation from photovoltaic silicon (Si) remains a research challenge in the recycling field. In this study, a novel B-removal process was developed using thermal plasma treatment coupled with steam and hydrogen gases.
Su-Hyun Baek   +5 more
doaj   +1 more source

Ethical Foreground and Background in Adult Educator Work

open access: yesNew Directions for Adult and Continuing Education, EarlyView.
ABSTRACT Adult educators work in a complex ethical environment. The very act of contributing to the learning of another is fraught with moral overtones. In this paper we consider the ethical dimensions of adult educator practice by distinguishing the ethical features of the context or ‘background’ of practice from the ethical capabilities and decision ...
Steven Hodge, Sonal Nakar
wiley   +1 more source

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