Results 81 to 90 of about 319,246 (248)

Deterministic or stochastic seasonality in daily electricity prices? [PDF]

, 2012
The paper presents analysis of the seasonality of Italian daily electricity prices. Since the correct detection of the nature, stochastic or probabilistic, of the seasonality is crucial in ARIMA modeling, a test that allows such detection is presented ...
CHIRICO, Paolo
core   +1 more source

Integrating winter’s method and white noise for advanced air quality forecasting: a case study of Indore, India

Environmental Research Communications
Air pollution poses one of the most critical challenges for urban centers globally that necessitates forecasting models to mitigate adverse impacts and inform policy decisions.
Jitendra Jayant, Aseem Chandra Tiwari, Angur Bala Jayant   +2 more
doaj   +1 more source

Future Soil Erosion Under Combined CMIP6 Climate Projections and Land Use/Land Cover Change: A RUSLE‐Based Assessment of the Kampe Omi Dam Basin in Nigeria

Land Degradation &Development, EarlyView.
ABSTRACT Soil erosion remains a major environmental challenge in Nigeria, driven by the combined effects of climate variability and land use/land cover (LULC) changes. Understanding future dynamics is essential for effective soil conservation planning.
Titus Adeyemi Alonge, Amos T. Kabo‐Bah, Lily Lisa Yevugah, Abdul‐Karim Iddrisu   +3 more
wiley   +1 more source

Habitat partitioning shapes divergent bacterial community assembly and carbon–nitrogen functional responses under cascade-dam fragmentation and seasonality

Water Research X
Cascade-dam systems impose repeated hydrological discontinuities that convert a river continuum into alternating reservoir–river segments, enhancing environmental heterogeneity and longitudinal gradients beyond the influence of a single dam.
Rongchao He, Shasha Chen, Zhenxin Chen, Weisong Ma, Mei Fu, Hongjian Lü, Weizhi Yao   +6 more
doaj   +1 more source

Model Selection, Forecasting and Monthly Seasonality of Hotel Nights in Denmark [PDF]

Foreigners’ demand for hotel nights in Denmark by nationality are examined using monthly time series covering 30years, and divided into 11 nationalities. Special attention is given to the role of seasonality.
Nils Karl Sørensen
core  

Seasonal Dynamics of Soil Multitrophic Biodiversity, Co‐Occurrence Network and Assembly Mechanisms Under Typical Vegetation Restoration Patterns in Karst Region

Land Degradation &Development, EarlyView.
ABSTRACT Previous studies often overlooked the dynamic effects of karst vegetation restoration on soil multi‐trophic biodiversity and the underlying community‐assembly mechanisms. To fill this gap, we performed a seasonal comparative analysis of soil biodiversity, co‐occurrence network architecture, and assembly processes across three representative ...
Xiang Zhang, Yingliang Liu, Yao Kai, Lihong Lu, Aoli Zhang, Zhaoxia Zeng, Fuping Zeng, Xunyang He, Hao Zhang   +8 more
wiley   +1 more source

Revealing Dust Source Changes in East Asia From Past to Future: An Interpretable Deep Learning Approach

Land Degradation &Development, EarlyView.
ABSTRACT Aeolian dust source areas are controlled by climate and human activities and are closely associated with land degradation, yet their long‐term evolution under global warming remains insufficiently quantified. An integrated framework that couples a U‐Net segmentation model with Shapley Additive Explanations (SHAP) was built to map and attribute
Yanyu Li, Qizhong Wu, Xueshun Chen, Jiang Yue, Jieying He, Huaqiong Cheng   +5 more
wiley   +1 more source

Deterministic versus Stochastic Seasonal Fractional Integration and Structural Breaks [PDF]

This paper considers a general model which allows for both deterministic and stochastic forms of seasonality, including fractional (stationary and nonstationary) orders of integration, and also incorporating endogenously determined structural breaks ...
Luis A. Gil-Alana, Guglielmo Maria Caporale, Juncal Cunado   +2 more
core  

Trade‐Policy Exposure and Managerial Adjustment Margins: Regime‐Dependent Evidence From Corporate Tax‐Base Outcomes

Managerial and Decision Economics, EarlyView.
ABSTRACT Trade‐policy shocks raise visible operating pressure on firms through sourcing costs, supplier exposure, and market‐serving choices. A direct operating‐margin interpretation points to production reconfiguration, pricing changes, or supply‐chain adjustment.
Garros Gong, Stanko Dimitrov
wiley   +1 more source

Modelling seasonality in South African agricultural futures [PDF]

, 2007
Includes bibliographical references (leaves 86-87).This study investigates the seasonality in agricultural commodity futures prices. Futures prices are modelled using the model developed by Sørensen (2002).
Kirk, Richard
core   +1 more source