Results 101 to 110 of about 3,222 (210)

Hydrogen Halide Gas Sensors: Active Materials, Operation Principles, and Emerging Technologies

open access: yesInterdisciplinary Materials, EarlyView.
This review considers hydrogen halide (HX) gas sensors across functional materials and principles: acoustic, chemical, optical and nanophotonic. The strong acidity and reactivity of HX gases are discussed as constraints for stability and selectivity of these devices.
Xiuzhen Liu   +12 more
wiley   +1 more source

Synthesis and characterizations of BNT-BT and BNT-KNN ceramics [PDF]

open access: yes, 2014
BNT-BT [(0.93Bi0.5Na0.5)TiO3- 0.07Ba-TiO3 ] and BNT-KNN [(0.93Bi0.5Na0.5)TiO3 – 0.07K 0.5 Na 0.5 NbO3 ] was prepared by the solid state route using microwave process.
Barik, S S
core  

Orientación de láminas delgadas de (Pb, Ca)TiO3

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 1999
Calcium modified PbTiO3 thin films have been prepared on platinized Si, MgO and SrTiO3 substrates. The films were deposited from a sol-gel solution with a concentration of 0.3 M and with a 10% excess of PbO.
Mendiola, J.   +2 more
doaj  

Enhancement of PVDF Electroactive Phase Content—Effect of Plasticizer as an Additive

open access: yesJournal of Polymer Science, EarlyView.
Preparation of spin‐coated PVDF composite films and the resulting crystalline phase transition (α → γ/β) triggered by cyclic‐ester EC interactions. ABSTRACT Polyvinylidene fluoride (PVDF) is a functional polymer with highly desirable electrical and piezoelectric properties.
Sivabalan Kaniapan   +3 more
wiley   +1 more source

Professor at Saratov and Moscow Universities Sergei A. Boguslavsky (1883–1923) [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Физика
Background and Objectives: The article systematizes biographical information about Sergey A. Boguslavsky, an outstanding Russian theoretical physicist of the first quarter of the 20th century, one of the first professors of the Faculty of Physics and ...
Anikin, Valery Mikhailovich
doaj   +1 more source

Investigation of the laser fluence and wavelength dependence in surface‐assisted laser desorption/ionization mass spectrometry using gold nanoparticles

open access: yesRapid Communications in Mass Spectrometry, EarlyView.
Rationale Surface‐assisted laser desorption/ionization (SALDI) mass spectrometry (MS) builds on the use of nanostructured surfaces (e.g., coatings of colloidal nanoparticles) to promote analyte desorption and ionization. The SALDI process is believed to occur mainly through thermal processes, resulting from heating of the nanosubstrate upon absorption ...
Wendy H. Müller   +3 more
wiley   +1 more source

Camera traps and deep learning enable efficient large‐scale density estimation of wildlife in temperate forest ecosystems

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
We tested the effect of using a readily available deep learning algorithm for animal species classification on the population density estimates of eight wild mammal species in 10 protected areas (Da). In general, there were no significant differences to the manual estimates (Dm) for all animal species and seasons.
Maik Henrich   +15 more
wiley   +1 more source

Record‐Low Compressibility in [N(C2H5)3CH3]FeCl4 Expands Phase Engineering Horizons in Hybrid Molecular Ferroelectrics

open access: yesSmall, EarlyView.
High‐pressure studies of the lead‐free hybrid organic–inorganic ferroelectric [N(C2H5)3CH3]FeCl4 demonstrate record low compressibility, establishing it as the least compressible molecular ferroelectric known. In situ diamond anvil cell experiments identify halide selection and inorganic sublattice tuning as key compressibility controls, advancing ...
Takeshi Nakagawa   +11 more
wiley   +1 more source

A flexible arched artificial photoreceptor constructed by photodeformable liquid crystal polymers and its application in vision restoration

open access: yesSmart Molecules, EarlyView.
A flexible arched artificial photoreceptor with high stability and biocompatibility was fabricated by integrating liquid crystal polymers with polyvinylidene fluoride‐trifluoroethylene. This device exhibits robust photoelectric responses under low‐intensity illumination and demonstrates efficacy in restoring visual responses in blind rats following ...
Yumeng Jiang   +7 more
wiley   +1 more source

Recent advances of non‐invasive sensors for smart wearable respiratory monitoring

open access: yesVIEW, EarlyView.
Respiration contains rich physiological and pathological information, making it one of the most fundamental and continuous vital signs. Respiration monitoring is a non‐invasive and simple, but incredibly powerful, tool for assessing health, managing disease, and tracking fitness.
Jianhui Chen   +8 more
wiley   +1 more source

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