Differential geometry of homogeneous manifolds

Results 121 to 130 of about 44,812 (174)

From Geometry of Hamiltonian Dynamics to Topology of Phase Transitions: A Review. [PDF]

Entropy (Basel)
Pettini G, Gori M, Pettini M.
europepmc +1 more source

From Complex Shaping to Mirror Finish: Additive Manufacturing of Aerospace‐grade Cf/SiC Space Optics

Advanced Science, EarlyView.
An integrated additive manufacturing route combines selective laser sintering, engineered interphases, and optimized silicon infiltration to fabricate complex Cf/SiC composites. The approach enables precise shaping, high mechanical performance, and excellent optical reflectivity, offering a scalable solution for advanced aerospace optics with both ...
Buhao Zhang +8 more
wiley +1 more source

Multiscale differential geometry learning of networks with applications to single-cell RNA sequencing data. [PDF]

Comput Biol Med
Feng H, Cottrell S, Hozumi Y, Wei GW.
europepmc +1 more source

Dissolution Study of Biodegradable Magnesium Silicide Thin Films for Transient Electronic Applications

Advanced Science, EarlyView.
Magnesium silicide (Mg2Si) is introduced as a narrow‐bandgap, biodegradable semiconductor for transient electronics. RF‐sputtered and annealed Mg2Si thin films show high intrinsic electrical conductivity and low thermal conductivity. The polycrystalline material undergoes hydrolysis in aquatic and composting environments with minimal cytotoxicity ...
Ji‐Woo Gu +17 more
wiley +1 more source

Steady bubbles and drops in inviscid fluids. [PDF]

Calc Var Partial Differ Equ
Meyer D, Niebel L, Seis C.
europepmc +1 more source

Effect of Inhomogeneous Temperature in Chip‐Scale Infrared Thermal Sources: A Revisited Blackbody Radiation Formula with Experimental Validation

Advanced Electronic Materials, EarlyView.
Revisited Black‐body radiation formula accounting for nonuniform temperature is proposed for calibration of planar thermal light sources. Calibration of optical power is based on measurement of the highest and lowest temperatures. Abstract Miniature and low‐cost light sources are highly desirable for numerous optical microsystems.
Shady R. Labib +5 more
wiley +1 more source

A Device‐Level Compact Model for Mushroom‐Type Phase Change Memory

Advanced Electronic Materials, EarlyView.
This study proposes a compact model for mushroom‐type phase‐change memory devices that incorporate the shape and size of the phase configurations. It uniquely features a current leakage path that injects currents at the outer edge of the electrode. This enables a consistent description of the programming and threshold switching mechanisms as well as ...
Stephan Menzel +4 more
wiley +1 more source

A Sharp Quantitative Alexandrov Inequality and Applications to Volume Preserving Geometric Flows in 3D. [PDF]

Arch Ration Mech Anal
Julin V, Morini M, Oronzio F, Spadaro E.
europepmc +1 more source

Transport Resistance Dominates the Fill Factor Losses in Record Organic Solar Cells

Advanced Energy Materials, EarlyView.
Organic photovoltaics are a promising solar cell technology, but even the record devices with 20% efficiency have significant fill factor losses due to low active layer conductivities. In this Perspective, the authors describe the origin of these losses, discuss experimental methods for their quantification, and explain how to minimize them to optimize
Chen Wang +6 more
wiley +1 more source

Lagrangian Relations and Quantum L ∞ Algebras. [PDF]

Commun Math Phys
Jurčo B, Pulmann J, Zika M.
europepmc +1 more source