Results 21 to 30 of about 592 (167)

Air Pollutant Analysis and AQI Prediction Based on GRA and Improved SOA-SVR by Considering COVID-19

Atmosphere, 2021
Since COVID-19 pneumonia broke out, the Chinese government has taken a series of measures to control the spread of the epidemic, which has made the air quality of Taiyuan in February 2020 significantly better than during the same period in previous years.
Ting Xu, Huichao Yan, Yanping Bai
doaj   +1 more source

Correction of Radio Wave Propagation Prediction Model Based on Improved Seagull Algorithm in Tunnel Environment

IEEE Access, 2021
In the urban rail transit (URT) environment, the radio wave propagation prediction model and communication system planning are very important. However, due to the complexity of the tunnel propagation environment, the current prediction model can not ...
Yunshui Zheng, Rui Yan, Yang Liu
doaj   +1 more source

Electric Power Load Forecasting Method Based on a Support Vector Machine Optimized by the Improved Seagull Optimization Algorithm

Energies, 2022
Accurate load forecasting is conducive to the formulation of the power generation plan, lays the foundation for the formulation of quotation, and provides the basis for the power management system and distribution management system.
Suqi Zhang, Ningjing Zhang, Ziqi Zhang, Ying Chen   +3 more
doaj   +1 more source

Guanylate Kinase 1 Deficiency: A Novel and Potentially Treatable Mitochondrial DNA Depletion/Deletions Disease. [PDF]

Ann Neurol
Objective Mitochondrial DNA (mtDNA) depletion/deletions syndrome (MDDS) comprises a group of diseases caused by primary autosomal defects of mtDNA maintenance. Our objective was to study the etiology of MDDS in 4 patients who lack pathogenic variants in known genetic causes.
Hidalgo-Gutierrez A, Shintaku J, Ramon J, Barriocanal-Casado E, Pesini A, Saneto RP, Garrabou G, Milisenda JC, Matas-Garcia A, Gort L, Ugarteburu O, Gu Y, Koganti L, Wang T, Tadesse S, Meneri M, Sciacco M, Wang S, Tanji K, Horwitz MS, Dorschner MO, Mansukhani M, Comi GP, Ronchi D, Marti R, Ribes A, Tort F, Hirano M.   +27 more
europepmc   +2 more sources

Strong anthropogenic control of secondary organic aerosol formation from isoprene in Beijing [PDF]

Atmospheric Chemistry and Physics, 2020
Isoprene-derived secondary organic aerosol (iSOA) is a significant contributor to organic carbon (OC) in some forested regions, such as tropical rainforests and the Southeastern US.
D. J. Bryant, W. J. Dixon, J. R. Hopkins, J. R. Hopkins, R. E. Dunmore, K. L. Pereira, M. Shaw, M. Shaw, F. A. Squires, T. J. Bannan, A. Mehra, S. D. Worrall, S. D. Worrall, A. Bacak, A. Bacak, H. Coe, C. J. Percival, C. J. Percival, L. K. Whalley, L. K. Whalley, D. E. Heard, E. J. Slater, B. Ouyang, B. Ouyang, T. Cui, T. Cui, J. D. Surratt, D. Liu, D. Liu, Z. Shi, Z. Shi, R. Harrison, Y. Sun, W. Xu, A. C. Lewis, A. C. Lewis, J. D. Lee, J. D. Lee, A. R. Rickard, A. R. Rickard, J. F. Hamilton   +40 more
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Isoprene-derived secondary organic aerosol in the global aerosol–chemistry–climate model ECHAM6.3.0–HAM2.3–MOZ1.0 [PDF]

Geoscientific Model Development, 2018
Within the framework of the global chemistry climate model ECHAM–HAMMOZ, a novel explicit coupling between the sectional aerosol model HAM-SALSA and the chemistry model MOZ was established to form isoprene-derived secondary organic aerosol (iSOA ...
S. Stadtler, T. Kühn, T. Kühn, S. Schröder, D. Taraborrelli, M. G. Schultz, M. G. Schultz, H. Kokkola   +7 more
doaj   +1 more source

Short-Term Photovoltaic Power Prediction Based on Similar Days and Improved SOA-DBN Model

IEEE Access, 2021
Existing methods in predicting short-term photovoltaic (PV) power have low accuracy and cannot satisfy actual demand. Thus, a prediction model based on similar days and seagull optimization algorithm (SOA) is proposed to optimize a deep belief network ...
Wei Hu, Xinyan Zhang, Lijuan Zhu, Zhenen Li   +3 more
doaj   +1 more source

Impacts of land cover changes on biogenic emission and its contribution to ozone and secondary organic aerosol in China [PDF]

Atmospheric Chemistry and Physics, 2023
The greening impacts on China from 2000 to 2017 led to an increase in vegetated areas and thus enhanced biogenic volatile organic compound (BVOC) emissions. BVOCs are regarded as important precursors for ozone (O3) and secondary organic aerosol (SOA). As
J. Ma, S. Zhu, S. Wang, P. Wang, P. Wang, P. Wang, J. Chen, H. Zhang, H. Zhang, H. Zhang   +9 more
doaj   +1 more source

Pathway-specific responses of isoprene-derived secondary organic aerosol formation to anthropogenic emission reductions in a megacity in eastern China [PDF]

Atmospheric Chemistry and Physics
Isoprene-derived secondary organic aerosol (iSOA) represents a major biogenic source of atmospheric OA, with its formation strongly influenced by anthropogenic emissions.
H. Hu, Y. Liang, T. Li, Y. She, Y. Wang, Y. Wang, T. Yang, M. Zhou, Z. Li, C. Li, H. Xiao, J. Hu, J. Li, Y. Zhao   +13 more
doaj   +1 more source

Optimal load demand forecasting in air conditioning using deep belief networks optimized by an improved version of snake optimization algorithm

IET Renewable Power Generation, 2023
Air conditioning systems play a vital role in maintaining comfortable indoor environments, particularly in hot and humid climates. However, these systems consume a significant amount of energy, making load demand forecasting an important aspect of energy
Haichang Jiang, Minghai Li, Gholamreza Fathi   +2 more
doaj   +1 more source