Results 71 to 80 of about 114,046 (322)

Electrochemically Engineered PEDOT:PSS/MXene Composite Electrode for the Label‐Free Procalcitonin Detection

open access: yesAdvanced Materials Interfaces, EarlyView.
Procalcitonin is a key biomarker for bacterial infections, but conventional detection methods are often time‐consuming. Here, we present an electrochemical sensor based on highly conductive Ti3C2Tx MXene combined with PEDOT:PSS, enabling direct antibody immobilization, while a bovine serum albumin coating provides antifouling protection.
Angelika Banaś   +6 more
wiley   +1 more source

New chaos function of composition function Gauss map and dyadic transformation map for digital image encryption [PDF]

open access: yesITM Web of Conferences
Encryption algorithms mostly use key-streams generated from random number generators. Several recent studies have shown that the random number generator used is a chaos function.
Mudrika Mudrika   +2 more
doaj   +1 more source

A note on higher-order Gauss maps [PDF]

open access: yesMichigan Mathematical Journal, 2017
We study Gauss maps of order $k$, associated to a projective variety $X$ embedded in projective space via a line bundle $L.$ We show that if $X$ is a smooth, complete complex variety and $L$ is a $k$-jet spanned line bundle on $X$, with $k\geq 1,$ then the Gauss map of order $k$ has finite fibers, unless $X=\mathbb{P}^n$ is embedded by the Veronese ...
Di Rocco, Sandra   +2 more
openaire   +3 more sources

Electronic Structure Reorganization in MPS3 via d‐Shell‐Selective Alkali Metal Doping

open access: yesAdvanced Science, EarlyView.
Alkali metal doping of layered MPS3 antiferromagnets reveals d‐shell‐selective responses. While MnPS3 resists charge transfer due to its half‐filled 3d5 shell, FePS3 and NiPS3 behave similarly to CoPS3 by accommodating extra d‐electrons. Yet only CoPS3, with its least stable d‐shell, undergoes pronounced band restructuring and a semiconducting‐to ...
Jonah Elias Nitschke   +12 more
wiley   +1 more source

Infinitesimal rigidity of convex surfaces through the second derivative of the Hilbert-Einstein functional II: Smooth case [PDF]

open access: yes, 2011
The paper is centered around a new proof of the infinitesimal rigidity of smooth closed surfaces with everywhere positive Gauss curvature. We use a reformulation that replaces deformation of an embedding by deformation of the metric inside the body ...
I Polyhedral Case, Ivan Izmestiev
core  

Capture and Culture of Circulating Tumor Cells Using a Biodegradable 3D Scaffold for Patient‐Derived Xenograft Construction

open access: yesAdvanced Science, EarlyView.
A self‐supporting, biocompatible, and biodegradable 3D cellulose scaffold has been developed for efficient isolation and in situ expansion of circulating tumor cells (CTCs) from patient blood. Subsequently, the 3D cellulose scaffold with cultured CTCs is directly implanted into immunodeficient mice for constructing patient CTC‐derived xenograft (CDX ...
Yi‐Ke Wang   +9 more
wiley   +1 more source

Hierarchical Artificial Muscle with Nonlinear Elasticity for Antagonistic and Cyclic Robotics

open access: yesAdvanced Science, EarlyView.
We construct hierarchical muscles by plying nylon fibers around a heating wire. The hierarchical muscle shows a J‐shaped passive curve, which shows benefit in antagonistic muscle pair and work accumulation mechanism. We also develop a computational, first‐principle model to understand the physics of both active actuation stroke and passive J‐curve ...
Samuel Tsai   +15 more
wiley   +1 more source

RULED SURFACES AND GAUSS MAP [PDF]

open access: yesBulletin of the Korean Mathematical Society, 2015
Abstract. We study the Gauss map G of ruled surfaces in the 3-dim-ensional Euclidean space E 3 with respect to the so called Cheng-Yauoperator acting on the functions defined on the surfaces. As a result,we establish the classification theorem that the only ruled surfaces withGauss map G satisfying G= AG for some 3 ×3 matrix A are the flatones ...
openaire   +1 more source

Sub‐Unit‐Cell Logic Governs Transport in TPMS Architectures

open access: yesAdvanced Science, EarlyView.
ABSTRACT Next‐generation energy, thermal, and chemical systems require architectures capable of highly efficient transport across multiple length scales. Triply periodic minimal surfaces (TPMS), first conceptualized in 1865, offer inherently scalable geometries with exceptional transport potential, yet mechanistic links between topology and performance
Haozhang Zhong   +16 more
wiley   +1 more source

A Non-Zonal and Non-Singular Formulation of the Gauss-Krüger Projection for Polar Regions

open access: yesMathematics
The complex analytic continuation can be developed to enable the Gauss-Krüger projection to be non-zonal and non-singular in polar regions. The series expansion of the traditional Gauss-Krüger projection in terms of third flattening has been derived by ...
Dongquan Zhou   +3 more
doaj   +1 more source

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