Results 31 to 40 of about 30,563 (351)

Feedback control of unstable cellular solidification fronts [PDF]

open access: yes, 2006
We present a numerical and experimental study of feedback control of unstable cellular patterns in directional solidification (DS). The sample, a dilute binary alloy, solidifies in a 2D geometry under a control scheme which applies local heating close to
A. J. Pons   +8 more
core   +5 more sources

Separation of CsF from FLiNaK molten salt via directional solidification

open access: yesHe jishu
BackgroundFluoride molten salt servers as a coolant and fuel carrier in molten salt reactors (MSRs). Over time of operation, fuel composition of MSR includes uranium, thorium, fission products, and carrier salt.
ZHOU Jinhao   +3 more
doaj   +1 more source

Solidification Front of Oriented Ledeburite

open access: yesArchives of Foundry Engineering, 2016
Directional solidification of the Fe - 4,3 wt % C alloy was performed with the pulling rate equal to v=83 μm/s. Sample was frozen during solidification to reveal the shape of the solid/liquid interface.
Trepczyńska-Łent M., Olejnik E.
doaj   +1 more source

Directional solidification of superalloys [PDF]

open access: yes, 1990
This invention relates to the directional solidification of superalloys, in particular nickel-based superalloys, by imposition of a predetermined temperature profile in the solidification front and, depending on the desired results, a predetermined rate ...
Alter, Wendy Sue   +2 more
core   +1 more source

The impact of the solidification rate on purification polysilicon by directional solidification

open access: yesJournal of Physics: Conference Series, 2022
Abstract In this experiment, directional solidification method was used to prepare metallurgical grade silicon ingot. We have studied the solidification rate which influenced the results of the experiment. Experimental results showed that the impurities were concentrated mostly in the top of silicon ingot.
Tao Lin, Chun Yan Duan
openaire   +1 more source

Pre‐analytical optimization of cell‐free DNA and extracellular vesicle‐derived DNA for mutation detection in liquid biopsies

open access: yesMolecular Oncology, EarlyView.
Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen   +11 more
wiley   +1 more source

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch   +13 more
wiley   +1 more source

Microstructures and compressive properties of AlxCoCrFeNi high entropy alloys prepared by arc melting and directional solidification

open access: yesMaterials Research Express, 2022
The Al _x CoCrFeNi (molar radio, x = 0.6 and 1.2) high entropy alloys (HEAs) were prepared by arc melting and directional solidification at the withdrawal rate of 150 μ m s ^−1 .
Zhuhuan Yu   +5 more
doaj   +1 more source

Method of growing composites of the type exhibiting the Soret effect [PDF]

open access: yes, 1977
A predetermine amount of segregation is introduced into a molten sample of a composite that exhibits the Soret effect, such amount approximating the amount of segregation resulting from directional solidification of the sample.
Bhat, B. N.
core   +1 more source

Long‐term hippocampal alterations and cognitive impairment in a murine model of surgical sepsis

open access: yesFEBS Open Bio, EarlyView.
Using a mouse model of surgical sepsis, we tested long‐term memory and analyzed the transcriptome of single cells isolated from the hippocampus. Survivor mice showed worse memory, loss of certain brain cell subpopulations, and abnormal immune cell activity—suggesting that post‐sepsis brain alterations may be linked to cognitive deficits.
Dong Seong Cho   +4 more
wiley   +1 more source

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