Results 21 to 30 of about 28,610,872 (373)

Trend analyses of regional time series of temperatures and rainfall of the Tapi basin

open access: yesJournal of Agrometeorology, 2020
Climate change information at the scale of basin is vital for planning, development and use of water. The Tapi basin is climatically responsive. Hydrological response of a basin is based mainly on rainfall and temperature.
GANESH D. KALE
doaj   +1 more source

Trend analysis of the airborne fraction and sink rate of anthropogenically released CO2 [PDF]

open access: yesBiogeosciences, 2019
Is the fraction of anthropogenically released CO2 that remains in the atmosphere (the airborne fraction) increasing? Is the rate at which the ocean and land sinks take up CO2 from the atmosphere decreasing?
M. Bennedsen   +5 more
doaj   +1 more source

The Role of Low Temperature Waste Heat Recovery in Achieving 2050 Goals: A Policy Positioning Paper

open access: yesEnergies, 2020
Urban waste heat recovery, in which low temperature heat from urban sources is recovered for use in a district heat network, has a great deal of potential in helping to achieve 2050 climate goals.
Edward Wheatcroft   +4 more
doaj   +1 more source

Challenges of integrated variance estimation in emerging stock markets [PDF]

open access: yesZbornik radova Ekonomskog fakulteta u Rijeci : časopis za ekonomsku teoriju i praksu, 2019
Estimating integrated variance, using high frequency data, requires modelling experience and data crunching skills. Although intraday returns have attracted much attention in recent years, handling these data is challenging because of their ...
Josip Arnerić, Mario Matković
doaj   +1 more source

Transformers in Time Series: A Survey [PDF]

open access: yesInternational Joint Conference on Artificial Intelligence, 2022
Transformers have achieved superior performances in many tasks in natural language processing and computer vision, which also triggered great interest in the time series community.
Qingsong Wen   +6 more
semanticscholar   +1 more source

TS2Vec: Towards Universal Representation of Time Series [PDF]

open access: yesAAAI Conference on Artificial Intelligence, 2021
This paper presents TS2Vec, a universal framework for learning representations of time series in an arbitrary semantic level. Unlike existing methods, TS2Vec performs contrastive learning in a hierarchical way over augmented context views, which enables ...
Zhihan Yue   +6 more
semanticscholar   +1 more source

Connecting the Dots: Multivariate Time Series Forecasting with Graph Neural Networks [PDF]

open access: yesKnowledge Discovery and Data Mining, 2020
Modeling multivariate time series has long been a subject that has attracted researchers from a diverse range of fields including economics, finance, and traffic. A basic assumption behind multivariate time series forecasting is that its variables depend
Zonghan Wu   +5 more
semanticscholar   +1 more source

Investor sentiment and foreign financial flows: Evidence from South Africa [PDF]

open access: yesZbornik radova Ekonomskog fakulteta u Rijeci : časopis za ekonomsku teoriju i praksu, 2019
Foreign financial flows to emerging markets have increasingly become important following the opening of financial markets globally. These financial flows are a function of a country’s fundamentals related to future productivity.
Hilary Tinotenda Muguto   +2 more
doaj   +1 more source

Low Density Neutron Star Matter with Quantum Molecular Dynamics: The Role of Isovector Interactions

open access: yesUniverse, 2022
The effect of isospin-dependent nuclear forces on the inner crust of neutron stars is modeled within the framework of Quantum Molecular Dynamics (QMD).
Parit Mehta   +4 more
doaj   +1 more source

Contracts, Business Models and Barriers to Investing in Low Temperature District Heating Projects

open access: yesApplied Sciences, 2019
Approximately 1.2 EJ of energy are potentially available for recovery each year from urban heat sources in the EU. This corresponds to more than 10 percent of the EU’s total energy demand for heat and hot water.
Kristina Lygnerud   +2 more
doaj   +1 more source

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