Results 111 to 120 of about 246,864 (291)

多级法准确度研究

Gaoya dianqi, 1986
本文分析了用多级法进行冲击试验时所得50％放电电压U50及标准差σ的分散性,推导的σU50及θ计算公式用计算机仿真进行了验证,结果满意,还论证了使用多级法时,电压级数最少应为5级。每级电压下的加压次数,应根据不同的θ/U50值分别选为10、20或40,以保证所得结果的准确性。
谈克雄
doaj  

Spin Transport Across Interfaces With the Non‐Collinear Antiferromagnet Mn3Sn

Advanced Materials, EarlyView.
We study spin transport with Mn3Sn|Metal${\rm Mn}_3{\rm Sn}\vert{\rm Metal}$ heterostructures. For Mn3Sn|Pt${\rm Mn}_3{\rm Sn}\vert{\rm Pt}$ heterostructures, ultrafast spin current generation by optical pumping of Mn3Sn${\rm Mn}_3{\rm Sn}$ is explored, while for Mn3Sn|NiFe${\rm Mn}_3{\rm Sn}\vert{\rm NiFe}$ heterostructures, we probe the spin–charge ...
Paul A. Marschall, Wolfgang Hoppe, Prajwal Rigvedi, Börge Göbel, Franziska Ziolkowski, Samir Lounis, Banabir Pal, Stuart S. P. Parkin, Georg Woltersdorf   +8 more
wiley   +1 more source

HΣX = �

, 2003
It is well-known that in the category CoAlgF of F-coalgebras for a given endofunctor F: Set − → Set the terminal object can be constructed as a limit of a certain descending chain.
Christoph Schubert, Σ X |σ, Σn X N, Christian Dzierzon   +3 more
core  

[Αφιέρωμα στη μνήμη Δημητρίου Θ. Σακαλή (1938-1993)]

, 1994
σ. [9]-43Περιλαμβάνει Εργογραφία Δ. Θ. Σακαλή'Ο Πρύτανης και το Τμήμα Φιλολογίας του Πανεπιστημίου Ιωαννίnων οργάνωσαν Φιλολογικό Μνημόσυνο του Δημητρίου Θ. Σακαλή, τη Δευτέρα 18 Απριλίου 1994 και ώρα 6 μ.μ.
Συνοδινού, Κατερίνα, Βέργαδος, Ιωάννης, Κωστοπούλου, Αγλαΐα, Μάντζιου, Μαίρη, Γιαννάκης, Γεώργιος, Σαββαντίδης, Γεώργιος   +5 more
core   +1 more source

Ionic Gating of Liquid‐Crystal‐Like Pteridine Assemblies Enables Tunable Light Scattering

Advanced Materials, EarlyView.
Tunable optical properties emerge through developmentally regulated ionic gating, which transforms disordered, ultraviolet (UV)‐absorbing organelles into concentrically ordered, liquid‐crystal‐like light scatterers. By integrating analyses of pteridine composition, potassium‐dependent assembly, hierarchical ultrastructure, and optical behavior, the ...
Sourabh Bera, Zohar Eyal, Yael Noy, Yuval Barzilay, Siddharth Sahoo, Srikant Moharana, Avi Baram, Tali Lerer‐Goldshtein, Neta Varsano, Bar Bader, Lothar Houben, Uwe Heinig, Iddo Pinkas, Moshe Goldsmith, Tamar Unger, Shira Albeck, Andrea Sorrentino, Maxim Itkin, Sergey Malitsky, Ziv Porat, Ido Hadar, Venkata Jayasurya Yallapragada, Dvir Gur   +22 more
wiley   +1 more source

Sócrates, como Odiseo, invocador de las almas de los muertos (ψυχαγωγεῖ Σωκράτης …ὥσπερ Οὑδυσσεύς)

PLATO JOURNAL, 2020
The expression ψυχαγωγεῖ Σωκράτης used by Aristophanes in Birds has been interpreted in different ways. However, the fact that the comediographer compares the action of invoking the souls of the dead to Odysseus, ὥσπερ Οὑδυσσεύς, suggests that book 11 of the Odyssey was the model that inspired the scene.
openaire   +1 more source

Οργανικά παρασκευάσματα

, 1926
63 σ.
Ιωαννίδης, Μιλτ. Π., Ματθαιόπουλος, Γ. Θ., Ζαγανιάρης, Ιωάν. Ν.   +2 more
core  

Variation coefficients.

, 2015
Coefficients are computed as ρ=σθμθ. The parameters σθ and μθ are taken from psychometric function fitting, as described in methods.
Malte Persike (582397), Günter Meinhardt (582398)   +1 more
core   +1 more source

Giant Nonequilibrium Valley Control via Spin‐Selective Hot‐Carrier Transfer in an Antiferromagnetic van der Waals Stack

Advanced Materials, EarlyView.
Spin‐selective hot‐carrier transfer across CrSBr/WSe2/CrSBr interfaces couples the continuously tunable magnetic configuration of antiferromagnetic CrSBr to the valley degrees of freedom of monolayer WSe2, enabling giant nonequilibrium valley control and magnetic‐state‐dependent reversal of circularly polarized emission.
Ke Xiao, Jiabao Yang, Kai Feng, Yicheng Guan, James Caleb Peters, Ramona Hoffmann, Niels Schröter, Stuart S. P. Parkin   +7 more
wiley   +1 more source

On the approximation of the zeta function by Dirichlet polynomials [PDF]

We prove that for $s=σ+it$ with $σ\ge0$ and ...
de Reyna, Juan Arias
core   +1 more source