Results 61 to 70 of about 85,243 (181)

Noise Impact Analysis in Computer-Generated Holography Based on Dual Metrics Evaluation via Peak Signal-to-Noise Ratio and Structural Similarity Index Measure

Applied Sciences
This study investigates the noise impact on reconstructed images in computer-generated holography (CGH) through theoretical analysis and Matlab 2015b simulations.
Yucheng Li, Yang Zhang, Deyu Jia, Song Gao, Muqun Zhang   +4 more
doaj   +1 more source

Physical State of Molecular Gas in High Galactic Latitude Translucent Clouds [PDF]

, 1999
The rotational transitions of carbon monoxide (CO) are the primary means of investigating the density and velocity structure of the molecular interstellar medium.
Adair P. Lane, Antony A. Stark, Ballesteros-Paredes J., Castor J. I., Desert F.-X., Falgarone E., Falgarone E., Flower D. R., Habing H. J., Heithausen A., Heithausen A., Heithausen A., James G. Ingalls, Matthias Rumitz, Park Y.-S., Stark R., Stark R., T. M. Bania   +17 more
core   +3 more sources

Methyl on the Bridge: 2‐Methyl Propellane as Precursor for 1,3‐Substituted 2‐Methylated Bicyclo[1.1.1]Pentanes

Chemistry – A European Journal, EarlyView.
The synthesis of 2‐methyl propellane and its conversion to various 1,2‐ and 1,2,3‐di‐ and trisubstituted bicyclopentanes is reported. Abstract Bicyclo[1.1.1]pentanes (BCPs) have emerged as isosteric replacements for mono‐ and para‐substituted benzene rings in medicinal and materials applications, involving substitution at the BCP bridgehead (1,3 ...
Sean R. Verschaeve, Mariana Gomes Manso, Tibo Van Eeckhoorn, Mark E. Light, Bruno Linclau   +4 more
wiley   +1 more source

NCOS News - July 2021

, 2021
The Cheadle Center at UCSB manages the North Campus Open Space (NCOS), which is a project that has restored 136 acres of upland and wetland habitats that existed before the area was converted into the Ocean Meadows Golf Course in the 1960s. The NCOS restoration project began in 2017 with a fine-scale grading of the site in order to recreate the salt ...
Clark, Ryan, Bender, Jeremiah, Fahrner, Oliver, Stratton, Lisa   +3 more
openaire   +1 more source

The CO-H2 conversion factor of diffuse ISM: Bright 12CO emission also traces diffuse gas

, 2011
We show that the XCO factor, which converts the CO luminosity into the column density of molecular hydrogen has similar values for dense, fully molecular gas and for diffuse, partially molecular gas.
Bigiel, Bohlin, Burgh, Burton, Garwood, Goldreich, Goldsmith, H.S. Liszt, Heiles, J. Pety, Leroy, Liszt, Liszt, Liszt, Liszt, Pety, R. Lucas, Rachford, Schlegel, Young   +19 more
core   +2 more sources

Molten‐Salt‐Mediated Chemical Looping Oxidative Dehydrogenation of Ethane with In‐Situ Carbon Capture and Utilization

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
A sustainable alternative to steam cracking, the molten‐salt‐mediated oxidative dehydrogenation (MM‐ODH) of ethane (C2H6) in Li2CO3‐Na2CO3‐K2CO3 (LNK) couples thermal cracking with melt‐mediated CO2 capture to realize commercially competitive C2H4 and CO yields. LNK composition strongly influences MM‐ODH process outcomes.
Kyle Vogt‐Lowell, Dennis Chacko, Kunran Yang, Jace Carsten, Junchen Liu, Matthew Housley, Fanxing Li   +6 more
wiley   +1 more source

Simulation-Based Verification and Application Research of Spatial Spectrum Modulation Technology for Optical Imaging Systems

Photonics
Leveraging Fourier optics theory and Abbe’s imaging principle, this study establishes that optical imaging fundamentally involves selective spatial spectrum recombination at the Fourier plane. Three classical experiments quantitatively validate universal
Yucheng Li, Yang Zhang, Houyun Liu, Daokuan Wang, Jiahui Yuan   +4 more
doaj   +1 more source

NCOS News - February 2021

, 2021
The Cheadle Center at UCSB manages the North Campus Open Space (NCOS), which is a project that has restored 136 acres of upland and wetland habitats that existed before the area was converted into the Ocean Meadows Golf Course in the 1960s. The NCOS restoration project began in 2017 with a fine-scale grading of the site in order to recreate the salt ...
Bender, Jeremiah, Clark, Ryan, Stratton, Lisa   +2 more
openaire   +1 more source

Modeling CO Emission: I. CO as a Column Density Tracer and the X-Factor in Molecular Clouds

, 2010
Theoretical and observational investigations have indicated that the abundance of carbon monoxide (CO) is very sensitive to intrinsic properties of the gaseous medium, such as density, metallicity, and the background UV field.
Adler, Ballesteros-Paredes, Ballesteros-Paredes, Ballesteros-Paredes, Bohlin, Bolatto, Brunt, Brunt, Burgh, Castor, Cornelis P. Dullemond, Dame, Dickman, Elitzur, Federman, Federrath, Federrath, Ferrière, Glover, Glover, Glover, Glover, Godard, Goodman, Grenier, Heithausen, Israel, Israel, Kainulainen, Klessen, Kutner, Larson, Leroy, Leroy, Li, Liszt, Lombardi, Mac Low, Maloney, McKee, Mihalas, Norman, Ossenkopf, Ostriker, Pichardo, Pineda, Polk, Rahul Shetty, Ralf S. Klessen, Rubio, Schöier, Sheffer, Shetty, Simon C. Glover, Sobolev, Solomon, Stone, Stone, van der Tak, van Dishoeck, Vazquez-Semadeni, Vermeij, Wolfire, Wolfire, Yang, Young   +65 more
core   +1 more source

Mechanisms and Advanced Characterizations for Urea Electrosynthesis

EcoEnergy, EarlyView.
In this review, various mechanisms and the advanced characterizations involved in urea electrosynthesis are summarized. Furthermore, the outlook on the future potential, the challenges, and scope of these techniques for developing the urea electrosynthesis route are discussed, paving the way for the green synthesis of urea and other important chemicals.
Chu Zhang, Liwei Guo, Shuangli Li, Zihan Chen, Chunshuang Yan, Chade Lv   +5 more
wiley   +1 more source