Results 91 to 100 of about 462,633 (304)

Influence of flat tube aspect ratio on melting characteristics of phase change material within a double-tube unit

Case Studies in Thermal Engineering
In this study, a numerical analysis was performed to investigate how the aspect ratio of flat tubes in a double-tube latent thermal energy storage system affects the melting behavior and thermal transfer properties of N-eicosane.
Gwan Gyu Kim, Chan Woo An, Young Min Seo, Seokho Kim, Hoon Ki Choi, Yong Gap Park   +5 more
doaj   +1 more source

A Review of Airside Heat Transfer Augmentation with Vortex Generators on Heat Transfer Surface

Energies, 2018
Heat exchanger performance can be improved via the introduction of vortex generators to the airside surface, based on the mechanism that the generated longitudinal vortices can disrupt the boundary layer growth, increase the turbulence intensity and ...
Lei Chai, Savvas A. Tassou
doaj   +1 more source

The region with trapped surfaces in spherical symmetry, its core, and their boundaries

, 2011
We consider the region $\mathscr{T}$ in spacetime containing future-trapped closed surfaces and its boundary $\B$, and derive some of their general properties.
A. Ashtekar, A. Ashtekar, A. Papapetrou, B. O’Neill, C. Williams, G. J. Galloway, H. Stephani, Ingemar Bengtsson, J. Thornburg, José M. M. Senovilla, L. Andersson, M. Kriele, M. Spivak, P. C. Vaidya, R. Osserman, R. Penrose, S. W. Hawking   +16 more
core   +1 more source

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

Molecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova, Zuzana Kozovska, Ondrej Pos, Kristina Pavlov, Sachin Gulati, Peter Makovicky, Kristina Jakic, Monika Burikova, Eva Sedlackova, Barbora Svitkova, Silvia Tyciakova, Vojtech Bystry, Nicolas Blavet, Boris Tichy, Matej Hrnciar, Jaroslav Budis, Miroslav Tomas, Peter Dubovan, Georgina Kolnikova, Veronika Repaska, Nikoleta Mojzesova, Eva Zomborska, Daniel Pindak, Michal Mego, Tomas Szemes, Miroslava Matuskova   +25 more
wiley   +1 more source

Computer model of catalytic combustion/Stirling engine heater head [PDF]

The basic Acurex HET code was modified to analyze specific problems for Stirling engine heater head applications. Specifically, the code can model: an adiabatic catalytic monolith reactor, an externally cooled catalytic cylindrical reactor/flat plate ...
Chang, R. L., Chu, E. K., Tong, H.
core   +1 more source

Dimethyl fumarate combined with cisplatin at subcytotoxic doses sensitizes cervical cancer toward ferroptosis and apoptosis through GSH restriction and p53 (re)activation

Molecular Oncology, EarlyView.
Dimethyl fumarate (DMF) reduces growth of HPV‐positive cervical cancer spheroids and induces ferroptosis in cervical cancer cells via blocking SLC7A11/Glutathione (GSH) axis. Combination of subcytotoxic doses of DMF and cisplatin (CDDP) further suppresses spheroid growth and drives cell death in 2D culture models.
Carolina Punziano, Giuseppina Minopoli, Simona Romano, Laura Marrone, Katia Aquilano, Maria Lina Tornesello, Raffaella Faraonio   +6 more
wiley   +1 more source

Treatment surfaces with atomic oxygen excited in dielectric barrier discharge plasma of O2 admixed to N2

AIP Advances, 2012
This paper describes the increase in surface energy of substrates by their treatment with gas composition generated in plasmas of DBD (Dielectric Barrier Discharge) in O2 admixed with N2.
E. V. Shun'ko, V. S. Belkin
doaj   +1 more source

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

Molecular 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, Lucrezia De Santis, Bret M. Stephens, Vincent Bernard, Jörg C. Kalff, Lara Braun, Phillipp Leyendecker, Johannes Röttgen, Daniel Weissinger, Anirban Maitra, Paola A. Guerrero, Alexander Semaan   +11 more
wiley   +1 more source

Studi Eksperimen Analisa Performa Compact Heat Exchanger Louvered Fin Flat Tube untuk pemanfaatan Waste Energy

Jurnal Teknik ITS, 2014
Waste Heat Recovery merupakan instalasi yang digunakan untuk memanfaatkan kembali waste energy seperti exhaust gas. Penelitian dilakukan pada compact heat exchanger tipe louvered fin flat tube sebagai salah satu komponen penyusun waste heat recovery ...
Taqwim Ismail, Ary Bachtiar Khrisna Putra   +1 more
doaj  

Boosting the thermal efficiency of a flat-tube parabolic trough solar collector with the introduction of innovative slashed triangular prism turbulators

Case Studies in Thermal Engineering
This study focuses on enhancing the thermal performance of parabolic trough solar collectors (PTSC) by modifying the geometry of the absorber tube to a flat design.
Sultan Alshehery, Qasem Al Mdallal, Ahmed A. Altohamy, Lotfi Ben Said, Mohamed Bouzidi, Turki Alkathiri, Lioua Kolsi   +6 more
doaj   +1 more source