Results 141 to 150 of about 13,206,732 (334)

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

open access: yesAdvanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau   +9 more
wiley   +1 more source

Avaliação da ecotoxicidade de mercúrio em três tipos de solos utilizando ensaios ecotoxicológicos com oligoquetas [PDF]

open access: yesGeochimica Brasiliensis, 2017
O mercúrio é um metal altamente tóxico, possui ação neurotóxica, caráter teratogênico e é amplamente conhecido pela capacidade de causar sérios danos à saúde humana e ambiental. O presente trabalho propõe a avaliação da ecotoxi-cidade de mercúrio em três
Ricardo Cesar   +8 more
doaj  

Parâmetros de consistência dos solos: seu estudo e avaliação ao longo de perfis pedológicos para aplicação na engenharia rodoviária. [PDF]

open access: yes, 2012
Foram estudados os limites de consistencia dos solos ao longo de perfis pedologicos para aplicacao na engenharia rodoviaria. As amostras foram coletadas de horizontes superficiais e subsuperficiais em dez perfis de diferentes classes de solos.
OLMOS ITURRI LARACH, J.   +1 more
core  

In Situ Amine Formation to Modulate MOF‐Derived PdIn N‐Doped Carbon Catalysts

open access: yesAdvanced Materials, EarlyView.
An amine‐assisted approach converts PdIn‐MOF into PdIn intermetallic nanoparticles embedded in N‐doped carbon. In situ‐generated amines trigger early Pd nucleation, producing smaller PdIn domains than direct pyrolysis. Amine sterics and basicity tune composition and particle size, while solvent and amine co‐determine textural features.
Gonzalo Egea   +9 more
wiley   +1 more source

The conceptual question among sovereignty, biopolitics and law: a sensible point between Foucault and Agamben [PDF]

open access: yes, 2012
The concept of biopolitics has its origin on the Michel Foucault works developped since 1975 to 1979. In this period, the author introduced the foundations for a new approach about the modern government, based in both crescent enpowerment on individuals ...
Chaves, João
core  

Naturalness and theoretical constraints on the Higgs boson mass

open access: yes, 2013
Arbitrary regularization dependent parameters in Quantum Field Theory are usually fixed on symmetry or phenomenology grounds. We verify that the quadratically divergent behavior responsible for the lack of naturalness in the Standard Model (SM) is ...
A. R. Vieira   +34 more
core   +1 more source

Multiphysics‐Driven Assembly of Biomimetic Vesicles

open access: yesAdvanced Materials, EarlyView.
Artificial extracellular vesicles, derived from cell membranes, are manufactured using a multiphysics‐integrated microfluidic platform that combines nanoknife membrane rupture, herringbone chaotic mixing, and acoustothermal modulation. This standardizable workflow enables the predictable control of vesicle formation and therapeutic loading, while ...
Timofei Solodko   +16 more
wiley   +1 more source

Toward a Consensus Characterization Protocol for Organic Thermoelectrics

open access: yesAdvanced Materials, EarlyView.
We advocate a common consensus on accurate and standardized reporting of performance metrics in the field of organic thermoelectrics. We summarize prevalent issues in the literature and propose a pre‐submission checklist to support the publication of reproducible results.
Bernhard Dörling   +14 more
wiley   +1 more source

Enhancing Grayscale E‐Beam Lithography: Thermal Treatment of Novolak‐Based Resist for 3D Nanostructures

open access: yesAdvanced Materials Interfaces, EarlyView.
Surface roughness and chemistry of novolak‐based grayscale resists are dependent on both exposure dose and post‐exposure thermal treatment. The observed trends align with the viscoelastic phase separation model and underscore the need to consider both thermodynamic and kinetic factors in resist processing. By tailoring thermal treatment, it is possible
Rahul Singh   +4 more
wiley   +1 more source

Substituent Effects on Cyanine Dyes Vary with Position and Chain Length

open access: yesAdvanced Optical Materials, EarlyView.
In cyanines, substituent effects vary as a function of substituent position and cyanine length. Electron‐donating‐ and ‐withdrawing groups at meso‐ and α‐positions of 4n+1/4n−1 long cyanines (n = 1, 2, 3…) cause opposing, hypsochromic and bathochromic shifts of the 1st UV–vis absorption bands.
David Dunlop   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy