Results 31 to 40 of about 102,427 (244)

Álgebra [PDF]

open access: yes, 2018
31 p.Las letras suelen representar cantidades desconocidas. Por medio del álgebra es posible realizar la traducción al lenguaje de las matemáticas al lenguaje cotidiano.
Torrijos, Margarita
core  

Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules

open access: yesAdvanced Functional Materials, EarlyView.
A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang   +7 more
wiley   +1 more source

Dificultades en el aprendizaje del álgebra escolar [PDF]

open access: yes, 2012
En este texto asumimos que las dificultades y obstáculos en el aprendizaje del álgebra pueden ser clasificadas en tres tipos (aquellas que son intrínsecas al objeto, otras que son inherentes al propio sujeto y aquellas otras que son consecuencia ...
Castro, Encarnación
core  

Stress‐Normalized Sensitivity as a Comparative Benchmark for Intrinsically Piezoresistive Nanocomposite Materials in Wearable Electronics

open access: yesAdvanced Materials Technologies, EarlyView.
A stress‐normalised sensitivity metric (S = G/Y) is introduced as a materials‐level benchmark for intrinsically piezoresistive nanocomposites. By decoupling electromechanical response (G) from stiffness (Y), the framework enables direct comparison across diverse systems and clarifies design trade‐offs for wearable sensors.
Conor S. Boland
wiley   +1 more source

On the Gromov-Witten invariants of the moduli of bundles on a surface. [PDF]

open access: yes, 2006
Depto. de Álgebra, Geometría y TopologíaFac.
Donaldson S. K.   +6 more
core   +1 more source

Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots

open access: yesAdvanced Robotics Research, EarlyView.
A new mechanical model of a tendon‐actuated helical extension spring joint in surgical robots is built using Cosserat rod theory. The model can implicitly handle the unknown contacts between adjacent coils and numerically predict spring shapes from straight to significantly bent under actuation forces.
Botian Sun   +3 more
wiley   +1 more source

Isocanted cube: the lower Lebesgue volumes, incidence numbers and symmetries of this d–dimensional tile

open access: yesExtracta Mathematicae
Let d ≥ 2. In this paper we prove that Id(ℓ, a) fills Rd face–to–face by translations. We prove that the symmetry group of Id(ℓ, a) contains the product of cyclic groups Cd × C2 as a subgroup.
María Jesús de la Puente
doaj   +1 more source

Situaciones de generalización y uso de modelos en la iniciación al álgebra escolar [PDF]

open access: yes, 2002
Se presentan algunas reflexiones acerca de los resultados obtenidos en los proyectos de indagación pedagógica: "Actividades de generalización en la iniciación al álgebra" y la "Modelación matemática en la iniciación al álgebra".
Malagón, Rocío   +2 more
core  

A State‐Adaptive Koopman Control Framework for Real‐Time Deformable Tool Manipulation in Robotic Environmental Swabbing

open access: yesAdvanced Robotics Research, EarlyView.
This work presents a state‐adaptive Koopman linear quadratic regulator framework for real‐time manipulation of a deformable swab tool in robotic environmental sampling. By combining Koopman linearization, tactile sensing, and centroid‐based force regulation, the system maintains stable contact forces and high coverage across flat and inclined surfaces.
Siavash Mahmoudi   +2 more
wiley   +1 more source

Aprendizaje de Sistemas de Ecuaciones Lineales De 2×2 con Apoyo del Software Ardora

open access: yesGóndola, Enseñanza y Aprendizaje de las Ciencias, 2022
Se presentan los resultados de una investigación, para la cual se diseñó una propuesta didáctica sobre el aprendizaje de sistemas de ecuaciones lineales de 2×2 con el apoyo del software libre Ardora. Fue de tipo cuasi-experimental, ya que se trabajó con
Ana Yaquelinne Palacios Granados   +2 more
doaj   +1 more source

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