Results 91 to 100 of about 162,987 (309)

Establishing a Model Precursor System: Over a Decade of Research on Carbon Dots from the Citric Acid‐Urea System

open access: yesAdvanced Functional Materials, EarlyView.
The citric acid/urea (CA‐Urea) precursor system offers a versatile, scalable route to carbon dots with tunable luminescence and multifunctionality. Mechanistic insights into precursor chemistry and reaction parameters have enabled doping, surface modification, and hybridization strategies, yielding CDs for luminescent devices, sensing, catalysis ...
Yupeng Liu   +10 more
wiley   +1 more source

Analysis of Selected Photovoltaic Panels Operating Parameters as a Function of Partial Shading and Intensity of Reflected Radiation

open access: yesActa Technologica Agriculturae, 2018
Due to expansion of utilisation of photovoltaics in ordinary households, the question arises how this phenomenon affects the electric power of photovoltaic modules.
Bilčík Matúš   +6 more
doaj   +1 more source

CERES: Clouds and the Earth's Radiant Energy System [PDF]

open access: yes, 1999
This brochure gives a brief description of the science research that is being done with data from the Clouds and Earth's Radiant Energy System (CERES) instrument flying onboard NASA's Terra satellite.

core   +1 more source

Investigation of Halogen Substitution Effects in π‐Conjugated Organic Ligands of Chiral Hybrid Perovskites on Their Chiroptical Activity

open access: yesAdvanced Functional Materials, EarlyView.
The role of novel thiophene‐based ligands with halogen substitutions in enhancing the chiroptical and optoelectronic properties of 2D chiral HOIPs has been investigated. By tailoring ligand design, enhanced CD and CPL properties are achieved, with improved CPL discrimination in photodetectors.
Boesung Kwon   +4 more
wiley   +1 more source

Solar radiation model for development and control of solar energy sources / Saulės spinduliavimo modelis fotovoltinių elektrinių projektavimui ir valdymui

open access: yesMokslas: Lietuvos Ateitis, 2016
The model of solar radiation, which takes into account direct, diffused and reflected components of solar energy, has been presented. Model is associated with geographical coordinates and local time of every day of the year.
Dominykas Vasarevičius   +1 more
doaj   +1 more source

A framework of integrated continuous online learner with fuzzy neural network application in learning environment [PDF]

open access: yes, 2021
Online learning has become popular among university due to its flexibility and adaptability. This technology offers the capability of learning, anytime and anywhere, based on student preferences.
Sadikan, Siti Fairuz Nurr
core  

Furan‐Substituted Phosphine‐Oxide as an Efficient Interfacial Modifier for Wide‐Bandgap Perovskite Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
We report phosphine‐oxide interlayers for wide‐bandgap perovskite solar cells, in which tuned P = O Lewis basicity enables selective passivation of buried NiOx/perovskite interfaces and introduces interfacial dipoles that strengthen the built‐in field.
JeeHee Hong   +6 more
wiley   +1 more source

Accumulation of Solar Radiation Depending on Type of Surface in the Urban Environment of the City Nitra

open access: yesEkológia (Bratislava), 2015
The diversity of active surfaces in urban environment is an alarming element of microclimatic conditions at the time of positive energy balance. The accumulation of solar and reflected radiation are forming local climate - microclimate.
Bahnová Katarína, Rózová Zdenka
doaj   +1 more source

Remote sensing of the atmosphere from environmental satellites [PDF]

open access: yes
Various applications of satellite remote sensing of the earth are reviewed, including (1) the use of meteorological satellites to obtain photographic and radiometric data for determining weather conditions; (2) determination of the earth radiation budget
Allison, L. J.   +3 more
core   +1 more source

X-ray reflected spectra from accretion disk models. III. A complete grid of ionized reflection calculations [PDF]

open access: yes, 2013
We present a new and complete library of synthetic spectra for modeling the component of emission that is reflected from an illuminated accretion disk. The spectra were computed using an updated version of our code XILLVER that incorporates new routines ...
Dauser, T.   +6 more
core   +3 more sources

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