Results 121 to 130 of about 4,616,768 (322)

Enhancing Machine Learning Performance in Estimating CDOM Absorption Coefficient via Data Resampling

open access: yesRemote Sensing
Chromophoric dissolved organic matter (CDOM) is a mixture of various types of organic matter and a useful parameter for monitoring complex inland surface waters.
Jinuk Kim   +8 more
doaj   +1 more source

Molecular Characterization and Theoretical Calculation of Plant Growth Regulators Based on Terahertz Time-Domain Spectroscopy

open access: yesApplied Sciences, 2018
Terahertz (THz), as an advanced spectral technology, has unique absorption characteristics for most biological macromolecules. In this work, the theoretical fundamentals for the application of THz time-domain spectroscopy (THz-TDS) to molecular ...
Fangfang Qu   +5 more
doaj   +1 more source

Speech Absorption Coefficient (SAC) [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1970
A single-number rating is proposed for evaluating the sound absorption of an acoustical material for use in applications where the control of speech sounds is of primary importance, such as in open-plan offices and schools. The development and application of the speech absorption coefficient are described, and its use is compared with the familiar ...
openaire   +1 more source

Intramolecular Down‐ and Up‐Conversion in Dimeric Tetracene Complexes Centered via Platinum(II) and Palladium(II)

open access: yesAdvanced Functional Materials, EarlyView.
Metal‐tetracene dimeric complexes are synthesized through the pyridyl coordination to either Pt(II) or Pd(II). Photophysical properties are systematically compared as a function of the metal using steady‐state and time‐resolved spectroscopy. The Pt(II) dimer exhibits efficient intramolecular singlet fission and subsequent intramolecular up‐conversion ...
Yifan Bo   +4 more
wiley   +1 more source

Relationship Between Texture Sensory Profiles and Optical Properties Measured by Time-Resolved Reflectance Spectroscopy During Post-Storage Shelf Life of ‘Braeburn’ Apples

open access: yesJournal of Horticultural Research, 2014
‘Braeburn’ apples from three harvests after 6-month storage in controlled atmosphere were measured at 670 nm by time-resolved reflectance spectroscopy (TRS), ranked on decreasing μa670 (increasing maturity), classified as less (LeM), medium and more ...
Rizzolo Anna   +6 more
doaj   +1 more source

Physical and acoustic properties of petroleum and renewable based polyurethane foam filled with shorea leprosula [PDF]

open access: yes, 2018
Physical and acoustic properties of petroleum-based polyurethane (PU) and renewable based polyurethane (RPU) foam composites filled with Shorea Leprosula (Red Meranti) fiber filler has been investigated.
Mohd Azahari, Muhammad Shafiq
core   +1 more source

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

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