Results 21 to 30 of about 111,648 (246)

Exponential distribution of long heart beat intervals during atrial fibrillation and their relevance for white noise behaviour in power spectrum [PDF]

, 2006
The statistical properties of heart beat intervals of 130 long-term surface electrocardiogram recordings during atrial fibrillation (AF) are investigated.
A. Bollmann, A.D. Krahn, B.S. Stambler, C. Hoglund, C.J. Meurling, E.J. Benjamin, F. Gaita, F. Pinciroli, F. Pinciroli, G. Moody, J. Hayano, J. Honerkamp, J.L. Wells Jr., Junichiro Hayano, K. Manabe, K.A. Boahene, K.T. Konings, M. Holm, M.H. Raitt, P. Bernaolo-Galván, P. Weismuller, P.A. Wolf, P.Ch. Ivanov, P.Ch. Ivanov, P.M. Verhorst, Philipp Maass, R.H. Peter, S. Nattel, S.N. Hatzido, St. Rokas, Stefan Heinrichs, T. Yamada, Thomas Hennig, W.J. Hobbs, Y. Asano   +34 more
core   +2 more sources

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

A modulation equations approach for numerically solving the moving soliton and radiation solutions of NLS

, 2016
Based on our previous work for solving the nonlinear Schrodinger equation with multichannel dynamics that is given by a localized standing wave and radiation, in this work we deal with the multichannel solution which consists of a moving soliton and ...
Soffer, Avy, Zhao, Xiaofei
core   +3 more sources

Pattern formation in a ring cavity with temporally incoherent feedback [PDF]

, 2004
We present a theoretical and experimental study of modulation instability and pattern formation in a passive nonlinear optical cavity that is longer than the coherence length of the light circulating in it.
Buljan, Hrvjoe, Carmon, Tal, Cohen, Oren, Fleischer, Jason W., Schwartz, Tal, Segev, Mordechai   +5 more
core   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Notes on analogue and digital amplitude modulation [PDF]

, 2009
Notes on AM, DSBSC, QAM, BPSK, 4QAM, 8PSK ...
Maunder, Rob
core  

Instantaneous ionization rate as a functional derivative [PDF]

, 2018
We describe an approach defining instantaneous ionization rate (IIR) as a functional derivative of the total ionization probability. The definition is based on physical quantities which are directly measurable, such as the total ionization probability ...
Hofmann, C., Ivanov, I. A., Kim, Kyung Taec, Landsman, A. S., Nam, Chang Hee, Ortmann, L.   +5 more
core   +4 more sources

Prospects of Electric Field Control in Perpendicular Magnetic Tunnel Junctions and Emerging 2D Spintronics for Ultralow Energy Memory and Logic Devices

Advanced Functional Materials, EarlyView.
Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp, Brahmdutta Dixit, Yifei Yang, Deyuan Lyu, Thomas Peterson, Qi Jia, Yu‐Chia Chen, Jian‐Ping Wang   +7 more
wiley   +1 more source

Temporal Modulation of Traveling Waves in the Flow Between Rotating Cylinders With Broken Azimuthal Symmetry

, 1996
The effect of temporal modulation on traveling waves in the flows in two distinct systems of rotating cylinders, both with broken azimuthal symmetry, has been investigated.
C. D. Andereck, C. David Andereck, C. F. Barenghi, D. B. Brewster, D. Walgraef, G. Ahlers, G. Seminara, H. Riecke, H. Riecke, Hermann Riecke, I. Mutabazi, I. Mutabazi, I. Mutabazi, I. Rehberg, J. J. Niemela, John J. Hegseth, L. Gil, M. C. Cross, P. Hall, P. J. Riely, R. J. Donnelly, R. Tagg, S. Carmi, S. G. K. Tennakoon, S. H. Davis, Sarath G. K. Tennakoon, T. J. Walsh, W. F. Langford   +27 more
core   +1 more source