Results 51 to 60 of about 1,194,701 (277)

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

open access: yesAdvanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane   +4 more
wiley   +1 more source

Negative refraction and plano-concave lens focusing in one-dimensional photonic crystals

open access: yes, 2006
Negative refraction is demonstrated in one-dimensional (1D) dielectric photonic crystals (PCs) at microwave frequencies. Focusing by plano-concave lens made of 1D PC due to negative refraction is also demonstrated.
Huang, Y.   +3 more
core   +1 more source

A millimeter-wave antireflection coating for cryogenic silicon lenses [PDF]

open access: yes, 2007
We have developed and tested an antireflection (AR) coating method for silicon lenses at cryogenic temperatures and millimeter wavelengths. Our particular application is a measurement of the cosmic microwave background.
Fowler, J. W.   +10 more
core   +2 more sources

High‐Power Rapid Laser‐Induced Synthesis of Multi‐functional Cobalt Metal‐Organic Framework With an Unprecedented Synthesis Efficiency

open access: yesAdvanced Materials Technologies, EarlyView.
Laser‐assisted synthesis enables rapid (within 1 h) and high‐yield (≥90%) production of Co‐MOFs with mesoporous structures, tunable magnetic and optical properties, and efficient adsorption of N2, CH4, and CO2 for low‐energy gas separation. DFT calculations elucidate the electronic structure and adsorption behavior.
Saliha Mutlu   +10 more
wiley   +1 more source

O PLANO REAL E SEUS EFEITOS SOBRE A ESTRUTURA PRODUTIVA DO BRASIL: UM ESTUDO SOBRE AS IMPORTAÇÕES

open access: yesRevista Brasileira de Estudos Regionais e Urbanos, 2015
O período compreendido entre 1990 e 2003 foi marcado por inúmeras mudanças na estrutura econômica do país, dentre elas pode-se citar a estabilização da moeda, a abertura de mercado, as privatizações e a desregulamentação do estado.
Jean Carlo Ricieri Ferreira   +1 more
doaj  

Habilidades matematicas para el buen desempeño del ingeniero [PDF]

open access: yes, 2010
Como se conoce el estudio de las habilidades es un fenómeno que puede centrarse desde distintos ángulos, pero: en este sentido siempre serán insuficientes. La verdadera dimensión de las habilidades es integral, sistemática y compleja. Varios autores como
Pérez, Juan
core  

Dual‐Functional Ingestible Passive Capsules for High‐Throughput Intestinal Sampling with Sealed Containment and Targeted Drug Delivery

open access: yesAdvanced Robotics Research, EarlyView.
To address challenges in high‐throughput intestinal sampling with sealed containment and target drug delivery, we developed a dual‐functional ingestible passive capsule with a dual‐triggered control system based on pH‐response and mechanical actuation.
Libing Huang   +9 more
wiley   +1 more source

O PLANO REAL E A REPÚBLICA RENTISTA

open access: yesPublicatio UEPG: Ciencias Sociais Aplicadas, 2019
A exposicao que segue demonstra um dos problemas estruturais sobre os quais a economia brasileira se estabeleceu a partir da execucao do ultimo grande plano de estabilizacao, a saber, o Plano Real. A partir dai, ver-se-a que o modelo de estabilizacao referido nunca trouxe o prometido desenvolvimento sustentavel, a despeito da sua eficacia no combate a ...
Matheus Bittencourt de Brito   +1 more
openaire   +2 more sources

Engineered Interfacial Control for Suppression of Phase Instability: Operando Visualization from Device to Module Scale

open access: yesAdvanced Science, EarlyView.
Operando real‐time current density–voltage absorption spectroscopy visualizes spatial phase evolution in mixed‐halide perovskites from device to module scale. Phase instability preferentially initiates in regions with insufficient carrier extraction, revealing electrical boundary conditions as governing factors.
Hangyeol Choi   +8 more
wiley   +1 more source

Death of mixed methods?: Or the rebirth of research as a craft [PDF]

open access: yes, 2010
The classification by many scholars of numerical research processes as quantitative and other research techniques as qualitative has prompted the construction of a third category, that of ‘mixed methods’, to describe studies that use elements from both ...
Gorard, Stephen, Symonds, J
core   +1 more source

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