Results 111 to 120 of about 137,804 (303)

Increased Endurance of Nonvolatile Photonics Enabled by Nanostructured Phase‐Change Materials

Advanced Materials, EarlyView.
Tapered and segmented islands of the phase‐change material (PCM) antimony selenide (Sb2Se3) integrated on silicon microring resonators enable ultra‐low‐loss, high‐endurance, non‐volatile photonic tuning. The nanostructured PCM design suppresses interfacial scattering and thermal stress, achieving record endurance over 100 million electrical switching ...
Jayita Dutta, Andrew Tang, Brian Mills, Rui Chen, Arnab Manna, Gokul Nath SJ, Virat Tara, Dennis Callahan, Cosmin Constantin Popescu, Juejun Hu, Arka Majumdar   +10 more
wiley   +1 more source

Cosmic rays and molecular clouds

, 2012
This paper deals with the cosmic-ray penetration into molecular clouds and with the related gamma--ray emission. High energy cosmic rays interact with the dense gas and produce neutral pions which in turn decay into two gamma rays.
A Atoyan, A Bamba, A Dar, A Giuliani, AA Abdo, AA Abdo, AA Abdo, AA Abdo, AA Abdo, AA Abdo, AA Abdo, AM Atoyan, AM Hillas, AR Bell, AR Bell, AR Bell, AW Strong, AW Strong, B Reville, C Ceccarelli, CD Dermer, CJ Cesarsky, D Caprioli, DC Ellison, DC Ellison, DF Cioffi, DG Wentzel, E Parizot, F Casse, F Combes, F Giordano, FA Aharonian, FA Aharonian, FA Aharonian, FA Aharonian, FA Aharonian, FA Aharonian, G Giacinti, G Morlino, G Sinnis, GF Krymskii, GR Blumenthal, H Li, H Yan, HJ Völk, J Aleksić, J Rho, J Vink, JA Hinton, JH Black, JR Jokipii, K Koyama, M Ackermann, M Ackermann, M Actis, M Mori, M Tsuboi, MA Malkov, ML Longair, MR Issa, P Blasi, R Cowsik, R Kulsrud, R Schlickeiser, RD Blandford, RJ Protheroe, RM Crutcher, S Casanova, S Casanova, S Gabici, S Gabici, S Gabici, S Gabici, SD Hunter, SP Reynolds, SR Kelner, T Inoue, T Kamae, T Montmerle, T Naito, T Tanaka, TK Gaisser, VN Zirakashvili, VS Berezinskii, VS Ptuskin, VS Ptuskin, VS Ptuskin, VS Ptuskin, W Baade, Y Fujita, Y Fukui, Y Ohira, Y Ohira, Y Uchiyama, Y Uchiyama, Y Uchiyama, Y Uchiyama   +96 more
core   +3 more sources

Correlated Charge Transport in an Organic Coulomb Glass

Advanced Materials, EarlyView.
ABSTRACT Advances in the development of organic field‐effect transistors (OFETs), electrically gated organic semiconductors (EGOFETs), and organic electrochemical transistors (OECTs) allow for the operation of these devices at very high charge‐carrier densities, where Coulomb interactions between carriers can be expected to become significant.
Magdalena Sophie Dörfler, Heinz Bässler, Harald Oberhofer, Anna Köhler   +3 more
wiley   +1 more source

ALMA CO Observations of Supernova Remnant N63A in the Large Magellanic Cloud: Discovery of Dense Molecular Clouds Embedded within Shock-Ionized and Photoionized Nebulae

, 2019
We carried out new $^{12}$CO($J$ = 1-0, 3-2) observations of a N63A supernova remnant (SNR) from the LMC using ALMA and ASTE. We find three giant molecular clouds toward the northeast, east, and near the center of the SNR.
91936, 91937, 91938, 91939, 91940, 91941, 91942, 91943, 91944, 91945, 91946, 91947, 91948, 91949, 91950, 91951, 91952, 91953, 91954, 91955, 91956, 91957, Alsaberi, R. Z. E., Filipović, M. D., Fujii, K., Fukui, Y., Inoue, T., Inutsuka, S., Kawamura, A., Matsumura, H., Maxted, N., Minamidani, T., Mizuno, N., Nagaya, T., Onishi, T., Rowell, G., Sano, H., Sasaki, M., Tachihara, K., Tokuda, K., Tsuge, K., Yamamoto, H., Yamane, Y., Yoshiike, S.   +43 more
core   +1 more source

Why Is the Mechanism Underlying the Chiral‐Induced Selectivity Effect Still Challenging?

Advanced Materials, EarlyView.
The chiral‐induced spin selectivity (CISS) effect is observed in many experimental configurations and for different materials. However, there are theoretical challenges in attempting to explain those results. A qualitative framework for explaining all the results is presented.
Ron Naaman, Yossi Paltiel
wiley   +1 more source

Examining Turbulence in Galactic Molecular Clouds. I. A Statistical Analysis of Velocity Structures

The Astrophysical Journal
We present a systematic analysis of the velocity structure functions (VSFs) of 167 molecular clouds with angular sizes greater than ~176 arcmin ^2 in three sectors of the Galactic midplane.
Yuehui Ma, Miaomiao Zhang, Hongchi Wang, Min Fang, Zhenyi Yue, Xuepeng Chen, Ji Yang, Fujun Du, Yang Su, Suziye He, Haoran Feng, Yan Sun, Chong Li, Qing-Zeng Yan, Zhiwei Chen, Shaobo Zhang, Xin Zhou   +16 more
doaj   +1 more source

Two Populations of Molecular Clouds in the Antennae Galaxies

, 2012
Super star clusters --- extremely massive clusters found predominately in starburst environments --- are essential building blocks in the formation of galaxies and thought to dominate star formation in the high-redshift universe.
Ashman, Bastian, Bolatto, Braine, Brandl, Brogan, Cen, Elmegreen, Eric Keto, Evans, Fabbiano, Fabbiano, Fall, Gao, Gao, Gao, Heyer, Hibbard, Hibbard, Ho, Ho, Ho, Ho, Keto, Kilgard, Larson, Lisa H. Wei, Luis C. Ho, McCrady, Melo, Mirabel, Neff, Oka, Oka, Pahre, Pineda, Renaud, Sault, Sawada, Schweizer, Sheth, Snijders, Solomon, Ueda, van den Bergh, Wang, Whitmore, Whitmore, Wilson, Wilson, Wu, Zepf, Zezas, Zezas, Zhang, Zhang, Zhu   +56 more
core   +1 more source

Electrolyte‐Induced Interfacial/Bulk Dual Regulation Enables Negligible Capacity Decay in Li‐Rich Cathodes

Advanced Materials, EarlyView.
This work report a n electrolyte‑induced interfacial/bulk dual regulation strategy that enables negligible capacity decay in li‑rich cathodes. ABSTRACT Lithium‐rich manganese‐based oxides (LRMO) suffer from rapid capacity decay, mainly driven by interfacial instability and bulk structural degradation associated with Jahn‐Teller (J‐T) distortion in Mn3+‐
Tianqi Yang, Min Jiang, Jiatao Lou, Zhouyu Huang, Xingjun Li, Liuqi Wang, Qingru Zhou, Lun Li, Liuyi Hu, Wei Liu, Yuzhi He, Xingyu Wang, Zhengbo Liu, Wenkui Zhang, Jun Zhang, Xinhui Xia, Yang Ren, Qi Liu   +17 more
wiley   +1 more source

On the Flux–Intensity Relation of Molecular Clouds

The Astrophysical Journal Letters
In this work, we report a study on the relationship between flux and intensity for molecular clouds. Our analysis is established on high-quality CO images from the Milky Way Imaging Scroll Painting project.
Qing-Zeng Yan, Ji Yang, Yang Su, Yan Sun, Shaobo Zhang, Xin Zhou, Chen Wang, Yiping Ao, Xuepeng Chen, Min Wang   +9 more
doaj   +1 more source

Spiral shocks and the formation of molecular clouds in a two phase medium

, 2007
We extend recent numerical results (Dobbs et. al. 2006) on molecular cloud formation in spiral galaxies by including a multi-phase medium. The addition of a hot phase of gas enhances the structure in the cold gas, and significantly increases the fraction
Allen, Audit, Bate, Benz, Bergin, Blitz, Bonnell, Bonnell, C. L. Dobbs, Cox, Cox, Dobbs, Dobbs, Engargiola, Gibson, Gibson, Gittins, Glover, Glover, Heitsch, Heyer, I. A. Bonnell, Kaufman, Kim, Kim, Klaassen, Le Petit, Lequeux, Mac Low, Monaghan, Monaghan, Ostriker, Piontek, Pringle, Solomon, Thacker, Vazquez-Semadeni, Vazquez-Semadeni, Vogel, Wada, Wada, Wada, Williams, Williams, Wolfire   +44 more
core   +2 more sources