Results 61 to 70 of about 42,004 (309)

Discovery of a Third Transiting Planet in the Kepler-47 Circumbinary System [PDF]

open access: yesAstronomical Journal, 2019
Of the nine confirmed transiting circumbinary planet systems, only Kepler-47 is known to contain more than one planet. Kepler-47 b (the “inner planet”) has an orbital period of 49.5 days and a radius of about 3 R⊕. Kepler-47 c (the “outer planet”) has an
J. Orosz   +18 more
semanticscholar   +1 more source

Biocompatibility and Long‐Term Stability of DNA‐Based Organic Mixed Conductors for Bioelectronics

open access: yesAdvanced Materials Interfaces, EarlyView.
The biocompatibility and long‐term stability of DNA‐based mixed ionic‐electronic conductors are investigated. In vitro cytotoxicity and cell viability are assessed using flow cytometry assay on primary mouse fibroblasts cultures. The biocomposites are integrated into organic electrochemical transistors (OECTs) to determine the stability of their ...
Sarka Hradilova   +7 more
wiley   +1 more source

Highlights of Discoveries for δ Scuti Variable Stars From the Kepler Era

open access: yesFrontiers in Astronomy and Space Sciences, 2021
The NASA Kepler and follow-on K2 mission (2009–2018) left a legacy of data and discoveries, finding thousands of exoplanets, and also obtaining high-precision long time-series data for hundreds of thousands of stars, including many types of pulsating ...
Joyce Ann Guzik
doaj   +1 more source

The California-Kepler Survey. VIII. Eccentricities of Kepler Planets and Tentative Evidence of a High-metallicity Preference for Small Eccentric Planets [PDF]

open access: yesAstronomical Journal, 2019
Characterizing the dependence of the orbital architectures and formation environments on the eccentricity distribution of planets is vital for understanding planet formation.
S. Mills   +5 more
semanticscholar   +1 more source

Thermally Activated Delayed Fluorescence and Beyond. Photophysics and Material Design Strategies.

open access: yesAdvanced Photonics Research, EarlyView.
Photophysical properties of TADF molecules are determined by characteristic parameters that are discussed in detail(. Moreover, using femtosecond time‐resolved spectroscopy, quantum mechanical considerations, and state‐of‐art calculations, deeper understanding allows us to design breakthrough Cu(I) and organic TADF‐ OLED materials. For the latter ones,
Hartmut Yersin, Uwe Monkowius
wiley   +1 more source

Revised Stellar Properties of Kepler Targets for the Q1-17 (DR25) Transit Detection Run [PDF]

open access: yes, 2016
The determination of exoplanet properties and occurrence rates using Kepler data critically depends on our knowledge of the fundamental properties (such as temperature, radius, and mass) of the observed stars.
S. Mathur   +16 more
semanticscholar   +1 more source

ε‐Poly‐L‐lysine‐graft‐oligo(3‐hexylthiophene) Copolymers as Antibacterial and Biodegradable Polymer Electronics

open access: yesAdvanced Science, EarlyView.
ε‐Poly‐L‐lysine‐graft‐oligo(3‐hexylthiophene) (EPL‐g‐O3HT) copolymers are engineered as biodegradable and antibacterial materials for transient electronics. EPL‐g‐O3HT exhibits tunable conductivity, controlled enzymatic degradability, good biocompatibility, and potent antibacterial activity. They are demonstrated in electromyography sensors and organic
Xin Sun   +9 more
wiley   +1 more source

ALGEBRAIC DESCRIPTION OF SHAPE INVARIANCE REVISITED

open access: yesActa Polytechnica, 2017
We revisit the algebraic description of shape invariance method in one-dimensional quantum mechanics. In this note we focus on four particular examples: the Kepler problem in flat space, the Kepler problem in spherical space, the Kepler problem in ...
Satoshi Ohya
doaj   +1 more source

A FORMAL PROOF OF THE KEPLER CONJECTURE [PDF]

open access: yesForum of Mathematics, Pi, 2015
This article describes a formal proof of the Kepler conjecture on dense sphere packings in a combination of the HOL Light and Isabelle proof assistants. This paper constitutes the official published account of the now completed Flyspeck project.
T. Hales   +21 more
semanticscholar   +1 more source

Investigation of Pretreatment and Melt Filtration in Mechanical Recycling of Polyethylene Film Waste Streams

open access: yesJournal of Applied Polymer Science, EarlyView.
The graphical abstract presents a visual representation of the sequence of processes involved in the transformation of three distinct waste streams into recyclates. This is followed by a detailed examination of the granulate properties resulting from these processes.
J. Langwieser, S. Czaker, J. Fischer
wiley   +1 more source

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