Results 31 to 40 of about 477,612 (260)

Characteristics of Surface Temperature Inversion at the Muztagh-Ata Site on the Pamir Plateau

Atmosphere
In this paper, based on all the data from September 2021 to June 2024 collected by a 30 m meteorological tower and a differential image motion monitor (DIMM) at the Muztagh-Ata site located on the Pamir Plateau in western Xinjiang, China, we study the ...
Dai-Ping Zhang, Wen-Bo Gu, Ali Esamdin, Chun-Hai Bai, Hu-Biao Niu, Li-Yong Liu, Ji-Cheng Zhang   +6 more
doaj   +1 more source

تحديد مطلع الهلال بالحساب الفلكي دراسة فقهية Determining The Beginning Of The Crescent By Astronomical Calculation – Jurisprudential Study [PDF]

مجلة البحوث الفقهیة والقانونیة
هذا البحث يتناول - تحديد مطلع الهلال بالحساب الفلكي - وهذه المسألة تعد مِن المسائل الفقهية التي استجد عليها وحدث فيها من تطورات العصر ما قد يؤثر على حكمها السابق، فقد كان علم الفلك قديماً يتبناه المنجمين، ويكان مبناه على الحدس والتخمين، وأما لآن وبفضل ...
عميش الاسمري
doaj   +1 more source

A Lightweight Procedural Layer for Hybrid Experimental–Computational Workflows in Materials Science

Advanced Engineering Materials, EarlyView.
We unveil a prototype hybrid‐workflow framework that fuses automatedcomputation with hands‐on experiments. Built atop pyiron, a lightweight, parameterized layer translates procedure descriptions into executable manual steps, syncing instrument settings, human interventions, and data capture in real‐time today.
Steffen Brinckmann, Sarath Menon, Raphael Röske, Johannes Steinhülb, Michael Selzer, Jan Janssen, Tilmann Hickel, Ruth Schwaiger, Jörg Neugebauer   +8 more
wiley   +1 more source

The observation, calculation, and possible forecasting of astronomical seeing [PDF]

Publications of the Astronomical Society of the Pacific, 1986
The possibility of forecasting seeing quality from routine meteorological data used as input to a numerical model of the boundary layer is discussed after demonstrating examples of reasonably good agreement between observed and calculated seeing on three nights when observed image diameter did not exceed 2 arc sec.
C. E. Coulman, J.-C. Andre, P. Lacarrere, P. R. Gillingham   +3 more
openaire   +1 more source

Analysis of the astroclimate parameters associated with the tropospheric conditions and their time evolution at Roque de Los Muchachos Observatory [PDF]

, 2012
The early 1970's saw the start of a new era in astronomy with the rst approach to building large telescopes (2 to 5 meters class telescope) and locating them in the right places.
GUERRA-RAMON, JUAN,CARLOS, Guerra-Ramon, Juan Carlos   +1 more
core  

Electrostatic Superlattices Beyond 1:1 Stoichiometry

Advanced Functional Materials, EarlyView.
Polymer‐mediated charge regulation drives two hierarchical routes to higher‐stoichiometry nanoparticle superlattices. Tuning the polymer's molecular weight promotes progressive interstitial filling, transforming ZnS into the fully occupied CaF2${\rm CaF}_2$ lattice. Exchanging polymer assignment between large and small nanoparticles instead breaks CsCl
Binay P. Nayak, Prapti Kakkar, Wesley P. Korba, Honghu Zhang, Wenjie Wang, Surya K. Mallapragada, Alex Travesset, David Vaknin   +7 more
wiley   +1 more source

Turbulence characterisation for Astronomical Observatories [PDF]

, 2012
Atmospheric turbulence has two effects in astronomy; (i) the broadening of the point spread function due to phase fluctuations limiting the resolution of imaging and (ii) producing intensity fluctuations known as scintillation.
SHEPHERD, HARRY,WILLIAM, Shepherd, Harry William   +1 more
core  

Bulk‐Like Spin Cycloid and Fast Switching in Freestanding BiFeO3

Advanced Functional Materials, EarlyView.
Freestanding BiFeO3 membranes overcome substrate‐induced constraints by simultaneously restoring the intrinsic bulk‐like spin cycloid and enabling ≈50% faster ferroelectric switching than substrate‐clamped epitaxial thin films. This combination of robust noncollinear antiferromagnetic order and efficient electric‐field switching establishes ...
Pratap Pal, Xiaoxi Deng, Gi‐Yeop Kim, Kyoungjun Lee, Jheng‐Cyuan Lin, Prithwijit Mandal, Jiangfeng Yang, Paul Steadman, Pascal Manuel, Roger D. Johnson, Si‐Young Choi, Paolo G. Radaelli, Chang‐Beom Eom   +12 more
wiley   +1 more source

The NASA Astrophysics Data System: Free Access to the Astronomical Literature On-Line and through Email [PDF]

, 2001
The Astrophysics Data System (ADS) provides access to the astronomical literature through the World Wide Web. It is a NASA funded project and access to all the ADS services is free to everybody world-wide.
Kurtz, Michael J., Eichhorn, Guenther, Grant, Carolyn S., Accomazzi, Alberto, Murray, Stephen S.   +4 more
core   +1 more source

Astronomical Pointlike Source Detection via Deep Feature Matching

The Astrophysical Journal Supplement Series
This study introduces PSDetNet, an innovative deep neural network tailored for the autonomous detection of pointlike astronomical sources by leveraging feature-matching techniques.
Ma Long, Xin Jiarong, Du Jiangbin, Zhao Jiayao, Wang Xiaotian, Zhang Yu   +5 more
doaj   +1 more source