Results 61 to 70 of about 7,785,767 (337)

URANUS: Ultra-wideband Radio Astronomy Novel Utility for Shared Ring Buffer Pipeline

The Astronomical Journal
Real-time processing of ultrawideband pulsar data requires handling massive parallel data streams that exceed single-machine capacity. We designed and implemented Ultra-wideband Radio Astronomy Novel Utility for Shared Ring Buffer Pipeline (URANUS) to ...
Ya-Zhou Zhang, Hai-Long Zhang, Xin-Chen Ye, Shao-Cong Guo, Jie Wang, Hong-Mei Tang, Jian Li, Xu Du, Wen-Na Cai, Ting Zhang, Yu-Yue Jiao   +10 more
doaj   +1 more source

Sub‐Nanometer Curvature Unlocks Quantum Orbital Flexoelectricity in Graphene

Advanced Materials, EarlyView.
In self‐assembled, reproducible, large‐area, quasi‐pristine graphene nanowrinkles, extreme curvature forces out‐of‐plane π‐electrons toward hybridization, driving a transition from classical to quantum orbital flexoelectricity. As curvature approaches the fundamental physical limit set by the C─C bond length, the resulting polarization increases by ...
Sathvik Ajay Iyengar, James G. McHugh, Jonathan P. Salvage, Robert Vajtai, Venkataramana Gadhamshetty, Alan B. Dalton, Manoj Tripathi, Pulickel M. Ajayan, Vincent Meunier   +8 more
wiley   +1 more source

Students concept mastering analysis on astronomy: Case study in physics education department Universitas PGRI Semarang [PDF]

, 2019
The course of astronomy as a new course in the curriculum that must be taken by physics teacher candidate at PGRI University of Semarang. Astronomy in front of students is known as part of science-based science that gives curiosity about the science of ...
Rusdiana, D., Susilawati, S.
core  

Firmamento: A Multimessenger Astronomy Tool for Citizen and Professional Scientists

The Astronomical Journal
Firmamento ( https://firmamento.hosting.nyu.edu ) is a new-concept, web-based, and mobile-friendly data analysis tool dedicated to multifrequency/multimessenger emitters, as exemplified by blazars.
Dhurba Tripathi, Paolo Giommi, Adriano Di Giovanni, Rawdha R. Almansoori, Nouf Al Hamly, Francesco Arneodo, Andrea V. Macciò, Goffredo Puccetti, Ulisses Barres de Almeida, Carlos Brandt, Simonetta Di Pippo, Michele Doro, Davit Israyelyan, A. M. T. Pollock, Narek Sahakyan   +14 more
doaj   +1 more source

Room‐Temperature Skyrmionic Synapse in 2D Ferromagnet Fe3GaTe2 Operating via Collective Spin Texture Transformation

Advanced Materials, EarlyView.
We demonstrate a neuromorphic synapse in 2D Fe3GaTe2 flakes. The device operates via a current‐driven transformation from a skyrmion‐lattice to a stripe‐domain state, yielding a linear anomalous Hall resistance response with a tunable slope to enable multiply‐accumulate operations. Simulations confirm its viability in artificial neural networks.
Jixiang Huang, Tongji Zhu, PeiYu Cai, Xiaoming Ma, Zhen Wang, Ruifu Zhang, Yi Hao, Jingdi Lu, Liubing He, Jun Xu, Yuejie Zhang, Wanjun Jiang, Jing Tao, Shiming Lei, Pavel Parchinskiy, Jing Teng, Lingfei Wang, Wei Niu, Elton J.G. Santos, Xiaoqian Zhang, Peng Li   +20 more
wiley   +1 more source

Efficient Searches for Small Signals across Two-channel Noisy Data: A Challenge in Big-data Observations

The Astrophysical Journal Supplement Series
Searching for novel small signals in noisy data is preferably pursued by correlation in two or more independently operating channels. Signals of potential interest exist in tails beyond κσ , where κ denotes a multiple of the standard deviation σ of the ...
Maryam Aghaei Abchouyeh, Maurice H. P. M. van Putten, Seyong Kim   +2 more
doaj   +1 more source

Major outcomes of an authentic astronomy research experience professional development program: An analysis of 8 years of data from a teacher research program

Physical Review Physics Education Research, 2018
The NASA/IPAC Teacher Archive Research Program (NITARP) provides a year-long authentic astronomy research project by partnering a research astronomer with small groups of educators. NITARP has worked with a total of 103 educators since 2005.
L. Rebull, D. French, W. Laurence, T. Roberts, M. Fitzgerald, V. Gorjian, G. Squires   +6 more
semanticscholar   +1 more source

Optimal Control Drives Ultrafast and Energy‐Efficient Magnetization Switching in Van der Waals Magnets

Advanced Materials, EarlyView.
ABSTRACT The accelerating expansion of data‐centric technologies is sharply increasing the energy burden of information storage, placing unprecedented pressure on the efficiency of magnetic switching. Conventional field‐driven reversal, once the foundation of magnetic memory, has become impractical in modern architectures due to its high energy cost ...
Mohammad H. Badarneh, PeiYu Cai, Elton J. G. Santos   +2 more
wiley   +1 more source

Prospective Pre-School Teachers’ Attitudes towards Astronomy [PDF]

, 2016
The purpose of this study is to examine the changes in prospective pre-school teachers’ attitudes towards astronomy in terms of their grades. The study was conducted with 205 prospective teachers (1st, 2nd, 3rd, 4th graders) studying in the education ...
Demir, Esra, Turk, Cumhur
core  

An Ultrawide Bandwidth Digital Backend System Based on PFB Algorithm for QTT

The Astronomical Journal
For the planning of the QiTai radio Telescope ultrawide bandwidth low-frequency pulsar receiving system, we designed and implemented a Field-Programmable Gate Array (FPGA)+CPU/GPU hybrid architecture digital backend system based on the Polyphase ...
Hai-long Zhang, Ya-zhou Zhang, Shao-cong Guo, Xu Du, Na Wang, Jie Wang, Xin-chen Ye, Han Wu, Jian Li, Xin Pei, Qiao Meng   +10 more
doaj   +1 more source