Results 81 to 90 of about 1,083,772 (280)

Visible Octave Frequency Combs in Silicon Nitride Nanophotonic Waveguides Driven by Ti:Sapphire Lasers

Laser &Photonics Reviews, EarlyView.
Chip‐based frequency combs are usually pumped from telecom wavelengths, far from the visible. This work instead pumps close to the visible with a Ti:sapphire laser ‐ the source behind the original optical frequency combs and now becoming chip‐integrable‐ and lets silicon‐nitride waveguides convert it into efficient, octave‐spanning visible‐to‐infrared ...
Abdullah Alabbadi, Ewan Allan, Hanna Ostapenko, Pablo Castro‐Marín, Derryck T. Reid, Pascal Del'Haye   +5 more
wiley   +1 more source

CONSTRUCTION OF ASTRONOMICAL DATABASE BASED ON MySQL AND JSP

Publications of The Korean Astronomical Society, 2004
As a core project of the Korean Astronomical Data Center (KADC) in Korea Astronomy Observatory (KAO), we have constructed a framework of astronomical database using MySQL and JSP. MySQL database server is a powerful open source database management system, and JSP technology provides a simplified, fast way to create dynamic web content.
HYUN-IL SUNG, SANG CHUL KIM, IN SUNG YIM, BONG GYU KIM, YOUNG SUK AHN, HYUN-WOONG NAM, SANGMO SOHN, HONG-JIN YANG   +7 more
openaire   +2 more sources

Observations of the Hydroxyl Radical in C/2013 US10 (Catalina) at 18 cm Wavelength

, 2017
The hydroxyl (OH) radical produced by photodissociation of water molecule is one of the most important indicators for cometary outgassing activity. The absorption lines of the OH radical at 1665 and 1667 MHz in the coma of comet C/2013 US10 Catalina were
Ip,Wing-Huen, Chen,Xi, Liu,Xiang, Gou,Wei, Gao,Feng, Chang,Sheng-Qi, Wang,Zhen, Zheng,Xing-Wu, Zuo,Xiu-Ting, Zhang,Shaobo, Wang,Na   +10 more
core   +1 more source

Ultimate Intrinsic SNR Depends on B0 Orientation

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose This work aims to investigate the effect of B0$$ {B}_0 $$ orientation on the uiSNR in MRI. Methods Electromagnetic simulations were performed on both realistic body models and simplified geometric models. Comparisons between (1) opposite B0$$ {B}_0 $$ directions along the head‐foot (HF) axis, corresponding to head‐first and feet‐first ...
Yuting Wang, Markus W. May, Marcel Gratz, Mark E. Ladd, Stephan Orzada   +4 more
wiley   +1 more source

An Object Oriented Approach to Astronomical Databases

, 1994
. The rate at which we can acquire astronomical data outstrips our ability to manipulate and interpret it using standard techniques. Future digital astronomical surveys will enter the terabyte regime.
R. J. Brunner, A. Szalay, A. J. Connolly, R. H. Lupton, Brunner Ramaiyer   +4 more
core  

Whole‐Brain Diffusion MRI at 7T With Universal Multiband GRAPE pTx Pulses

Magnetic Resonance in Medicine, EarlyView.
Purpose To improve signal strength and homogeneity of whole‐brain diffusion‐weighted imaging (DWI) at 7T. Methods Universal multiband excitation and refocusing pulses were optimized with the gradient ascent pulse engineering (GRAPE) algorithm across a database of B1+$$ {B}_1^{+} $$ and B0$$ {B}_0 $$ maps obtained from 20 subjects.
Marten Laufenberg, Daniel Löwen, Mónica Ferreira, Nicolas Boulant, Jennifer Faber, Tony Stöcker   +5 more
wiley   +1 more source

Școala clujeană de astronomie culturală / The School of Cultural Astronomy from Cluj-Napoca

Analele Banatului. Arheologie-Istorie, 2021
In 1952, Professor Gheorghe Chiş from the Astronomical Institute together with the academician Constantin Daicoviciu initiated the idea of the existence of a Dacian calendar by deciphering the sanctuaries in the capital of Dacia at Sarmizegetusa Regia ...
Iharka Szucs-Csillik
doaj   +1 more source

Comparison of Gene Enrichment Between Prostate Tissue and Urine for Non‐Invasive Biomarker Development

The Prostate, EarlyView.
ABSTRACT Background For prostate cancer (PCa), early diagnosis and biomarker‐based patient stratification can improve clinical decision‐making and post‐treatment prognosis. PCa biomarkers are best validated in tissue following comprehensive histopathologic review; however, urinary biomarkers can be obtained non‐invasively and are therefore safer and ...
Yuandong Xing, Minqi Xu, Dan Dion, Vanessa F. Bratti, Ania A. Namin, D. Robert Siemens, Palak G. Patel, Robert J. Gooding, Jane Bayani, Hamid Ghaedi, Anna Y. Lee, David M. Berman   +11 more
wiley   +1 more source

Euclid: Asteroid rotation periods from the Euclid Ecliptic Survey★

Astronomy & Astrophysics
The Euclid Ecliptic Survey was conducted during the calibration phase of the mission, from 23 to 31 December 2023, as a campaign to study Solar System objects. We used data from this survey to analyse more than 23 000 appeareances of 2321 known asteroids.
Irureta-Goyena B. Y., Altieri B., Kneib J.-P., Pöntinen M., Hainaut O. R., Alarcon M. R., Granvik M., Nucita A. A., Carry B., Devogele M., Mahlke M., Vavrek R., Müller T., Vilenius E., Snodgrass C., Kohley R., Lemon C., Gómez-Alvarez P., Verdoes Kleijn G., Licandro J., Kruk S., Conversi L., Franco A., Buenadicha G., Mas-Buitrago P., Kuijken K., Andreon S., Baccigalupi C., Baldi M., Balestra A., Battaglia P., Biviano A., Branchini E., Brescia M., Camera S., Capobianco V., Carbone C., Carretero J., Casas R., Castellano M., Castignani G., Cavuoti S., Chambers K. C., Cimatti A., Colodro-Conde C., Congedo G., Conselice C. J., Copin Y., Courbin F., Courtois H. M., Cropper M., Degaudenzi H., De Lucia G., Dolding C., Dole H., Dubath F., Dupac X., Farina M., Farinelli R., Ferriol S., Frailis M., Fumana M., Galeotta S., George K., Gillis B., Giocoli C., Gracia-Carpio J., Grazian A., Grupp F., Haugan S. V. H., Hoekstra H., Holmes W., Hook I. M., Hormuth F., Hornstrup A., Jahnke K., Jhabvala M., Kiessling A., Kubik B., Kümmel M., Kunz M., Kurki-Suonio H., Le Brun A. M. C., Ligori S., Lilje P. B., Lindholm V., Lloro I., Mainetti G., Mansutti O., Marggraf O., Martinelli M., Martinet N., Marulli F., Massey R. J., Medinaceli E., Mei S., Merlin E., Meylan G., Mora A., Moscardini L., Nakajima R., Neissner C., Niemi S.-M., Padilla C., Paltani S., Pasian F., Pedersen K., Percival W. J., Pettorino V., Polenta G., Popa L. A., Raison F., Rebolo R., Renzi A., Rhodes J., Riccio G., Romelli E., Roncarelli M., Saglia R., Sakr Z., Sapone D., Schirmer M., Schneider P., Secroun A., Sihvola E., Simon P., Sirignano C., Sirri G., Stanco L., Tallada-Crespí P., Tereno I., Toft S., Toledo-Moreo R., Torradeflot F., Tutusaus I., Valiviita J., Vassallo T., Wang Y., Weller J., Zerbi F. M., García-Bellido J., Martín-Fleitas J., Scottez V., Helou G., Scott D.   +144 more
doaj   +1 more source

Data of nearby space objects using SIMBAD astronomical database

Data in Brief, 2023
Although SIMBAD Astronomical Database lets us write our query to extract data, there are some problems. Max record number in each query is too low. Also, repeating the name of stars in different records is a big problem. Hence, we wrote a script and executed it at different distances.
openaire   +3 more sources