Results 131 to 140 of about 27,723 (301)

Direct Measurement of the Singlet Lifetime and Photoexcitation Behavior of the Boron Vacancy Center in Hexagonal Boron Nitride

Advanced Optical Materials, EarlyView.
Negatively charged boron vacancy defects in hexagonal boron nitride promise near‐surface quantum sensing, but their internal spin transition rates are only partly understood. This work directly measures the defect's singlet‐state lifetime, 15(3) ns, using a nanosecond rise‐time dual‐pulse photoluminescence‐recovery method, and shows that high laser ...
Richard A. Escalante, Andrew J. Beling, Daniel G. Ang, Niko R. Reed, Justin J. Welter, John W. Blanchard, Cecilia Campos, Edwin Coronel, Klaus Krambrock, Alexandre S. Leal, Paras N. Prasad, Ronald L. Walsworth   +11 more
wiley   +1 more source

PERBANDINGAN PERAMALAN METODE DOUBLE EXPONENTIAL SMOOTHING SATU PARAMETER BROWN DAN METODE DOUBLE EXPONENTIAL SMOOTHING DUA PARAMETER HOLT

, 2016
Peramalan merupakan suatu proses atau metode dalam meramal suatu peristiwa yang akan terjadi pada masa yang akan datang. Pemulusan eksponensial adalah suatu metode peramalan rata-rata bergerak yang melakukan pembobotan menurun secara eksponensial ...
Bidangan, Julnita, Hayati, Memi Nor, Purnamasari, Ika   +2 more
core   +1 more source

Forecasting outbreak of COVID-19 in Turkey; Comparison of Box-Jenkins, Brown's exponential smoothing and long short-term memory models. [PDF]

Process Saf Environ Prot, 2021
Guleryuz D.
europepmc   +1 more source

Surface‐Plasmon‐Coupled Blue InGaN/GaN Micro‐LEDs with Oxide–Metal–Oxide Capping Layer Compatible to Chip Fabrication Process

Advanced Optical Materials, EarlyView.
A sidewall‐integrated oxide–metal–oxide architecture is demonstrated to overcome efficiency degradation in ultra‐small InGaN/GaN micro‐LEDs. Conformal Al2O3 passivation combined with plasmonic Ag nanoparticles enables localized surface plasmon–exciton coupling, converting surface‐related nonradiative losses into radiative emission.
Pil‐Kyu Jang, Lee‐Woon Jang, Ohbin Kwon, Yeong‐Hoon Cho, Sangbum Kim, Sang‐Ik Lee, Seungjae Baek, Jiwon Park, Myeongjun Choi, Jaeseung Kim, Taehwan Kim, Sung‐Un Kim, Min‐Seok Lee, Yong‐Ho Ra, Ki Hoon Nam, Seung Min Kwak, Alexander Y. Polyakov, In‐Hwan Lee   +17 more
wiley   +1 more source

Unmasking the Theta Method. [PDF]

The Theta method of forecasting performed particularly well in the M3-competition and is therefore of interest to forecast practitioners. The description of the method given by Assimakopoulos and Nikolopoulos (2000) involves several pages of algebraic ...
Hyndman, R.J., Billah, B.
core  

Data‐Efficient Electromagnetic Surrogate Solver Through Dissipative Relaxation Transfer Learning

Advanced Optical Materials, EarlyView.
Dissipative relaxation transfer learning (DIRTL) enables data‐efficient training of electromagnetic surrogate solvers by pretraining data generated with artificial material loss before fine‐tuning on target lossless data. The framework suppresses resonant outlier effects during early training, allowing effective adaptation to high‐amplitude resonances ...
Sunghyun Nam, Chan Y. Park, Min Seok Jang   +2 more
wiley   +1 more source

Time Series Analysis and Forecasting of the Hand-Foot-Mouth Disease Morbidity in China Using An Advanced Exponential Smoothing State Space TBATS Model. [PDF]

Infect Drug Resist, 2021
Yu C, Xu C, Li Y, Yao S, Bai Y, Li J, Wang L, Wu W, Wang Y.   +8 more
europepmc   +1 more source

When Cubic is Not Isotropic: Phonon–Exciton Decoupling in CuInSnS4 Single Crystals

Advanced Optical Materials, EarlyView.
A cubic CuInSnS4 crystal does not fully play by cubic rules. While phonons follow the average iso‐tropic lattice symmetry, the disorder‐localized excitons break away, showing strong, and reproduci‐ble polarization‐dependent emission. This work shows how intrinsic cation disorder can turn a mac‐roscopically cubic material into a source of hidden ...
Lara Kim Linke, Yvonne Tomm, Xinyun Liu, Galina Gurieva, Daniel M. Többens, Pardis Adams, Michel Calame, Ryan W. Crisp, Jessica Boland, Seán Kavanagh, Susan Schorr, Mirjana Dimitrievska   +11 more
wiley   +1 more source

Hierarchical forecasts for Australian domestic tourism [PDF]

In this paper we explore the hierarchical nature of tourism demand time series and produce short-term forecasts for Australian domestic tourism.
Rob J. Hyndman, Roman A. Ahmed, George Athanasopoulos   +2 more
core  

On exponential sums over smooth numbers.

Journal für die reine und angewandte Mathematik (Crelles Journal), 1997
This paper is concerned with the theory and applications of exponential sums over smooth numbers. Despite the numerous applications stemming from suitable estimates for these exponential sums, thus far little attention has been paid to any but the simplest cases.
openaire   +2 more sources