Results 61 to 70 of about 112,497 (239)

A new algorithm in singular spectrum analysis framework:The Overlap-SSA (ov-SSA)

open access: yesSoftwareX, 2018
The Singular Spectrum Analysis (SSA) is powerful method, capable of working with arbitrary statistical process and it is adaptive to the underlaying data. Many variations of the standard methodology have been prosed in recent years improving the performance, adjusting to specific problems or objectives, or addressing some shortcomings.
Michel C. R. Leles   +3 more
openaire   +2 more sources

The Impact of the 1996 SSI Childhood Disability Reforms: Evidence from Matched SIPP-SSA Data [PDF]

open access: yes
The Personal Responsibility and Work Opportunity Reconciliation Act of 1996 changed the definition of disability used to determine eligibility for disabled children under the Supplemental Security Income (SSI) program and made other changes in the ...
Lynn A. Karoly, Paul S. Davies
core  

Integrated Optoelectronic Model to Predict the External Quantum Efficiency of Single‐Layer TADF Organic Light‐Emitting Diodes

open access: yesAdvanced Electronic Materials, EarlyView.
An experimentally validated optoelectronic device model is presented to describe the efficiency and roll‐off behavior of single‐layer TADF OLEDs. By coupling charge transport, exciton dynamics, and optical outcoupling, the model reproduces the External Quantum Efficiency (EQE) across different emission layer thicknesses and temperatures, offering ...
Jawid Nikan   +4 more
wiley   +1 more source

The organic fraction of bubble-generated, accumulation mode Sea Spray Aerosol (SSA) [PDF]

open access: yes, 2010
Recent studies have detected a dominant accumulation mode (~100 nm) in the Sea Spray Aerosol (SSA) number distribution. There is evidence to suggest that particles in this mode are composed primarily of organics.
R. L. Modini   +5 more
core  

Numerical studies of the SSA and SSA+ for scattering from randomly-rough surfaces

open access: yes, 2010
In recent years, researchers have been working to develop a "practical" rough surface scattering model which provides sufficiently accurate results at a reasonable computational cost.
Wang, Yanqiu
core   +1 more source

Comparison of ARIMA, SSA, and ARIMA – SSA hybrid model performance in Indonesian economic growth forecasting [PDF]

open access: yes, 2020
The aim of this research is to compare among the performance of ARIMA, Singular Spectrum Analysis (SSA), and ARIMA-SSA hybrid model which is applied to Indonesian economic growth forecasting.
Fajar, Muhammad, Hartini, Sri
core  

Sustainable Productivity Growth in Agriculture: The Role of Shifts in R&D Investments and Technology

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT The objective of the paper is to evaluate the long‐term prospects of sustainable productivity growth linked to plausible assumptions on public agricultural R&D investments as the key productivity driver. Second, it investigates the role of changing R&D focus from yield maximization to input saving technologies (fertilizers and pesticides). The
Zuzana Smeets Křístková   +4 more
wiley   +1 more source

Assessing Household Welfare in Response to Rising Food Prices in The Gambia

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT This study examines how rising food prices affected household welfare in The Gambia using nationally representative data from the 2015/16 Integrated Household Survey (IHS‐3). The analysis reflects household consumption behavior and market conditions prevailing during that period and provides a structural benchmark for understanding ...
Roger Vorsah   +3 more
wiley   +1 more source

European guidelines from the EHTG and ESCP for Lynch syndrome: an updated third edition of the Mallorca guidelines based on gene and gender

open access: yesBJS (British Journal of Surgery), EarlyView., 2020
Recommendations for clinical and molecular identification of LS, surgical and endoscopic management of LS‐associated colorectal cancer and preventive measures for cancer were produced. The emphasis was on surgical and gastroenterological aspects of the cancer spectrum.
T. T. Seppälä   +18 more
wiley   +1 more source

Volatility analysis and forecasting of vegetable prices using an ARMA‐GARCH model: An application of the CF filter and seasonal adjustment method to Korean green onions

open access: yesAgribusiness, EarlyView.
Abstract The vegetable market experiences significant price fluctuations due to the complex interplay of trend, cyclical, seasonal, and irregular factors. This study takes Korean green onions as an example and employs the Christiano–Fitzgerald filter and the CensusX‐13 seasonal adjustment methods to decompose its price into four components: trend ...
Yiyang Qiao, Byeong‐il Ahn
wiley   +1 more source

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