Results 21 to 30 of about 25,434 (167)

Helium Cryostat for Experimental Study of Natural Turbulent Convection [PDF]

open access: yes, 2010
V disertační práci je popsán heliový kryostat s experimentální válcovou konvekční celou pro studium proudění při přirozené konvekci za velmi vysokých Rayleigho čísel Ra (až do řádu 10^15) a Nusseltových čísel Nu (až do řádu 10^4).
Urban, Pavel
core   +1 more source

Working at Boimondau: A Community Experience

open access: yesSociology Lens, Volume 38, Issue 1, Page 66-74, March 2025.
Abstract In the 1940s and 1950s, France witnessed the emergence of labor communities whose ambition was to escape capitalism and abolish wage labor. This article focuses on Boimondau, the best‐known community at the time. In terms of work, the central activity in the life of the community, two main tensions lastingly structured the collective and ...
Michel Lallement
wiley   +1 more source

Assessing the influence of titanium dioxide nanotubes incorporation on thermal and thermomechanical characteristics of 3D‐printed denture base resin

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose This study aims to evaluate the effects of adding titanium dioxide (TiO2) nanotubes (NTs) to three‐dimensional (3D) printed denture base resin on the thermal and thermomechanical properties, which have high clinical relevance. Materials and Methods TiO2 NTs with dimensions of 30–70 nm in diameter and 2–4 µm in length were added to the ...
Zaid Basil Al‐enbary   +2 more
wiley   +1 more source

Kesedaran terhadap amalan pemakanan seimbang dalam kalangan pelajar Politeknik Merlimau, Melaka: satu tinjauan [PDF]

open access: yes, 2013
Pemakanan yang baik mula mempengaruhi kesihatan tubuh badan sejak daripada kecil lagi. Pemakanan memainkan peranan penting dalam mengekalkan kesihatan dan mencegah penyakit.
Saleh, Noorsyarzielah
core  

Improvement of Starch Extraction Conditions From Agro‐Industrial Residues in Ubá Mango

open access: yesStarch - Stärke, Volume 78, Issue 4, April 2026.
Starch was successfully extracted from the Mango (variety Ubá) seed kernel. Two experimental designs were carried out to improve starch extraction, and results showed that decreasing incubation time and NaHSO3 concentration increased yield. According to the characterization, the kernel starch showed similarity between the Ubá variety and other mango ...
Roseli Lopes da Silva Fontes   +6 more
wiley   +1 more source

Displacements analysis of self-excited vibrations in turning

open access: yes, 2009
The actual research deals with determining by a new protocol the necessary parameters considering a three-dimensional model to simulate in a realistic way the turning process on machine tool.
A Cowley   +26 more
core   +1 more source

Mathematical Prediction for Geometry‐Mediated Cell 3D In‐Growth on Bone Tissue Engineering Scaffolds

open access: yesAdvanced Science, Volume 13, Issue 14, 9 March 2026.
This study identifies a fundamental pore size dependent pattern of three dimensional bone marrow derived mesenchymal stem cell (BMSC) infiltration within porous scaffolds, where small pores promote horizontal cellular bridging and large pores facilitate vertical migration.
Xiang Gao   +15 more
wiley   +1 more source

Investigation of externally toothed parts forming using ballizing technique

open access: yesResults in Materials
Externally toothed parts such as gears, splined and coupling sleeves can be manufactured by machining, casting, and forming. The machining process is costly because of using a special tool, consuming power, and wasting material during the machining ...
Ayman Ali Abd-Eltwab   +5 more
doaj   +1 more source

From on-line sketching to 2D and 3D geometry: A fuzzy knowledge based system [PDF]

open access: yes, 2000
The paper describes the development of a fuzzy knowledge based prototype system for conceptual design. This real time system is designed to infer user’s sketching intentions, to segment sketched input and generate corresponding geometric primitives ...
Jordanov, IN, Qin, SF, Wright, DK
core  

Machine Learning–Based Wear Prediction of Recycled Magnesium Matrix Composites Reinforced With Ceramic Fibers

open access: yesEngineering Reports, Volume 8, Issue 3, March 2026.
This study integrates recycled magnesium chips with ceramic fibers to fabricate functionally graded composites exhibiting superior hardness and wear resistance. Machine learning models, particularly LightGBM, accurately predicted wear rates across material zones, reducing experimental effort and demonstrating a sustainable, data‐driven approach to ...
Meenakshi Sudarvizhi Seenipeyathevar   +7 more
wiley   +1 more source

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