Results 151 to 160 of about 40,420 (297)

ICRF Wall Conditioning: Present Status and Developments for Future Superconducting Fusion Machines [PDF]

, 2008
. 1 ABSTRACT. ITER and future superconducting fusion machines need efficient wall conditioning techniques for routine operation in between shots in the presence of permanent high magnetic field for wall cleaning, surface isotope exchange and to control ...
M Shimada, E Gauthier, F C Sch¸ller, D Douai, Jet Efda, V Rohde, J.-M Noterdaeme, A Lyssoivan, D Van Eester, V E Moiseenko, F C Schüller, A Becoulet, J Ongena, M Graham, P U Lamalle, E De La Cal, F Louche, O Marchuk, E D Volkov, B Beaumont, R Weynants, V Plyusnin, G Van Wassenhove, B Unterberg, R Pitts, V Philipps, J Hu, R Laengner, R Koch, D A Hartmann, M Van Schoor, J G Kwak, E Lerche, Y Zhao, Y D Bae, V Bobkov, M Nightingale, T Wauters, G Sergienko, M K Paul, M.-L Mayoral, M Vervier, S Bremond, I Monakhov, N Ashikawa, H G Esser   +45 more
core  

Design and Analysis of Compression–Torsion Coupling Metamaterials Using the Golden Section Method

Advanced Engineering Materials, EarlyView.
A novel compression–torsion metamaterial is engineered using inclined rods and symmetry breaking. To optimize its torsional performance, the golden section method is employed. The mechanical response of the metamaterial is validated through both numerical analysis and experimental validation.
Amirhossein Hassani, Sara Bagherifard
wiley   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

Advanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

Hot‐Film and Calorimetric Methods With Transient Heating for Measurement of High Biofluid Flow Rate

Advanced Functional Materials, EarlyView.
Accurate measurement of biofluid flow rate is vital for clinical diagnostics. We propose a transient heating strategy using short thermal pulses and peak temperature tracking to enhance the flow sensitivity of the hot‐Film and calorimetric methods. Simulations show how optimal heating time maximizes sensitivity across flow rates.
Yuanting Wei, Shupeng Li, Kyung Rok Pyun, Tianyu Yang, Bosung Kim, Haotian Yang, John A. Rogers, Yonggang Huang, Haohui Zhang   +8 more
wiley   +1 more source

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

Advanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite, Lilia Huynh, Natascha Gray, Quintin N. Meier, Marta D. Rossell, Morgan Trassin   +5 more
wiley   +1 more source

Wall Conditioning and Power Balance for Spheromak Plasmas in SSPX

, 2002
We report here results from power balance measurements for ohmically-heated plasmas in the Sustained Spheromak Physics Experiment (SSPX). The plasma is formed inside a close-fitting tungsten-coated copper shell; wall conditioning by baking, glow ...
Hill, D. N., Bulmer, R., Woodruff, S., Wood, R. D., McLean, H. S., Stallard, B. W., Ryutov, D. D.   +6 more
core  

Exploring Curvature Effects in Direct‐Written 3D Curved Hollow Magnetic Nanoshells

Advanced Functional Materials, EarlyView.
Fabricated by a hybrid FEBID/CVD method, 3D PtC/Co3Fe core–shell heterostructures with engineered curvature and shell thickness exhibit complex reversal modes with axially symmetric N'eel‐type domain walls. XMCD‐PEEM combined with full‐scale micromagnetic simulations reveal how curvature and thickness govern the domain wall energy landscape and shape ...
Oleksii M. Volkov, Fabrizio Porrati, Florian Kronast, Riccardo Hertel, Pavlo Makushko, Olha Bezsmertna, Alexander Kuprava, Mohamad‐Assaad Mawass, Sven Barth, Michael Huth, Denys Makarov   +10 more
wiley   +1 more source

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

Advanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa, Lin‐Ding Yuan, Stephen D. Wilson, James M. Rondinelli   +3 more
wiley   +1 more source

Heat Transfer and Pressure Drop in a Developing Channel Flow with Streamwise Vortices

, 1996
Experiments to assess the heat transfer and pressure-drop effects of delta-wing vortex generators placed at the entrance of developing channel flows are reported in this study.
Jacobi, A.M., Felton, K.C.
core  

A New Condition for $k$-Wall–Sun–Sun Primes

Taiwanese Journal of Mathematics
Let $k\ge 1$ be an integer, and let $(U_n)$ be the Lucas sequence of the first kind defined by \begin{equation*}\label{Eq:Lucas} U_0=0,\quad U_1=1\quad \mbox{and} \quad U_n=kU_{n-1}+U_{n-2} \quad \mbox{ for $n\ge 2$}. \end{equation*} It is well known that $(U_n)$ is periodic modulo any integer $m\ge 2$, and we let $π(m)$ denote the length of this ...
openaire   +2 more sources