Results 91 to 100 of about 712,298 (331)

Teleparallelism as anholonomic geometry [PDF]

open access: yesarXiv, 2018
The geometry of parallelizable manifolds is presented from the standpoint of regarding it as conventional (e.g., Euclidian or Minkowskian) geometry, when it is described with respect to an anholonomic frame field that is defined on the space in question.
arxiv  

A Flexible Photovoltaic Fatigue Factor for Quantification of Mechanical Device Performance

open access: yesAdvanced Functional Materials, EarlyView.
The flexible Photovoltaic fatigue factor (F) quantifies mechanical and photovoltaic performance as a function of the power conversion efficiency (PCE), the strain (ε${\varepsilon}$), and the number of bending cycles (NBC) in bending tests. The strain depends on the bending radius (R) and the thicknesses of the substrate (ts) and the photovoltaic device
Lulu Sun   +8 more
wiley   +1 more source

Tetrahedral Tilting and Lithium‐Ion Transport in Halide Argyrodites Prepared by Rapid, Microwave‐Assisted Synthesis

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a rapid, microwave‐assisted synthetic method for halide argyrodite solid‐state electrolytes Li6PS5X${\rm Li}_6 {\rm PS}_5X$ (X=$X =$ Cl−${\rm Cl}^-$, Br−${\rm Br}^-$, I−${\rm I}^-$). Microwave synthesis increases S2−${\rm S}^{2-}$/X−$X^-$ site disorder and rotational disorder of the isolated PS43−${{\mathrm{PS}}_{4}}^{3 ...
Austin M. Shotwell   +4 more
wiley   +1 more source

String Theory and Math: Why This Marriage May Last [PDF]

open access: yesarXiv, 2015
String theory is changing the relationship between mathematics and physics. The central role is played by the phenomenon of duality, which is intrinsic to quantum physics and abundant in string theory.
arxiv  

Engineered In Vitro Multi‐Cell Type Ventricle Model Generates Long‐Term Pulsatile Flow and Modulates Cardiac Output in Response to Cardioactive Drugs

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents an innovative in vitro model of a human left ventricle using biofunctionalized PDMS membranes and human iPSC‐derived cardiomyocytes. The engineered ventricle demonstrates stable, long‐term pulsatile flow, and physiological responses to cardioactive drugs.
Christoph Kuckelkorn   +6 more
wiley   +1 more source

Random algebraic geometry, attractors and flux vacua [PDF]

open access: yesarXiv, 2005
This is a submission to the Encyclopedia of Mathematical Physics (Elsevier, 2006) and conforms to its referencing guidelines.
arxiv  

Actuated Hydrogel Platforms To Study Brain Cell Behavior

open access: yesAdvanced Healthcare Materials, EarlyView.
The complex and dynamic viscoelastic properties of the brain underpin neural plasticity and overall function. Actuating hydrogel platforms support mechanistic research to elucidate how brain cells respond to dynamic microenvironments. This study reviews the mechanobiology of the brain and its impact on brain function in health and disease and describes
Kirill E. Zhurenkov   +3 more
wiley   +1 more source

Seven Lectures on the Universal Algebraic Geometry [PDF]

open access: yesarXiv, 2002
Some notions of algebraic geometry can be defined for arbitrary varieties of algebras. This leads to universal algebraic geometry. The main idea of the presented theory is to consider interactions between algebra, logic and geometry in algebras from a given variety of algebras.
arxiv  

Nano‐Topography Enhanced Topological‐Cell‐Analysis in Radiation‐Therapy

open access: yesAdvanced Healthcare Materials, EarlyView.
Radiotherapy, a treatment that implies exposition of cells to radiation, offers promise to treat cancer. Here, it is hypothesized that the nanoscale details of a scaffold can amplify the response of cells to radiation, measured through topological variables, providing ways to assess the efficacy of Radiotherapy treatment.
Francesca Pagliari   +8 more
wiley   +1 more source

Lectures on Arithmetic Noncommutative Geometry [PDF]

open access: yesarXiv, 2004
This is the text of a series of five lectures given by the author at the "Second Annual Spring Institute on Noncommutative Geometry and Operator Algebras" held at Vanderbilt University in May 2004. It is meant as an overview of recent results illustrating the interplay between noncommutative geometry and arithmetic geometry/number theory.
arxiv  

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