Results 21 to 30 of about 846,956 (260)

Gene Expression Analysis through Parallel Non-Negative Matrix Factorization [PDF]

Computation, 2021
Genetic expression analysis is a principal tool to explain the behavior of genes in an organism when exposed to different experimental conditions. In the state of art, many clustering algorithms have been proposed. It is overwhelming the amount of biological data whose high-dimensional structure exceeds mostly current computational architectures.
Angelica Alejandra Serrano-Rubio, Guillermo B. Morales-Luna, Amilcar Meneses-Viveros   +2 more
openaire   +2 more sources

Fast PARAFAC Algorithm for Target Localization in Bistatic MIMO Radar in the Co-Existence of Unknown Mutual Coupling and Spatially Colored Noise

IEEE Access, 2019
Target positioning using multiple-input multiple-output (MIMO) radar system has aroused extensive attention in the past decade. However, most of the existing positioning algorithms are only suitable for ideal scenarios (e.g., well-calibrated sensors ...
Junjie Sui, Fang Ye, Xinhai Wang, Fangqing Wen   +3 more
doaj   +1 more source

Photochemical Reactivity of Humic Substances in an Aquatic System Revealed by Excitation-Emission Matrix Fluorescence

Frontiers in Chemistry, 2021
The photochemical reactivity of humic substances plays a critical role in the global carbon cycle, and influences the toxicity, mobility, and bioavailability of contaminants by altering their molecular structure and the mineralization of organic carbon ...
Xin-yuan Wang, Qi-peng Yang, Shi-jie Tian, Fan-hao Song, Fei Guo, Nan-nan Huang, Wei-qiang Tan, Ying-chen Bai, Ying-chen Bai   +8 more
doaj   +1 more source

Characterization of Dissolved Organic Matter Released from Aged Biochar: A Comparative Study of Two Feedstocks and Multiple Aging Approaches

Molecules, 2023
Dissolved organic matter (DOM) plays important roles in environmental ecosystems. While many studies have explored the characteristics of aged biochar, limited information is available about the properties of DOM derived from aged biochar. In this study,
Yan Yue, Leqi Xu, Guitong Li, Xiang Gao, Hongfang Ma   +4 more
doaj   +1 more source

Investigating Dissolved Organic Matter Dynamics in the Downstream Reaches of the Ganges and Brahmaputra Rivers Using Fluorescence Spectroscopy

Frontiers in Earth Science, 2022
The Ganges and the Brahmaputra, two major rivers in Bangladesh, contribute major loads of dissolved organic matter (DOM) into the Bay of Bengal. The composition, sources, availability, and seasonal heterogeneity of DOM in these two rivers are thus very ...
Nahin Mostofa Niloy, Mashura Shammi, Md. Morshedul Haque, Md. Morshedul Haque, Shafi M. Tareq   +4 more
doaj   +1 more source

Parallel Factorization to Implement Group Analysis in Brain Networks Estimation

Sensors, 2023
When dealing with complex functional brain networks, group analysis still represents an open issue. In this paper, we investigated the potential of an innovative approach based on PARAllel FActorization (PARAFAC) for the extraction of the grand average connectivity matrices from both simulated and real datasets.
Ranieri, Andrea, Pichiorri, Floriana, Colamarino, Emma, de Seta, Valeria, Mattia, Donatella, Toppi, Jlenia   +5 more
openaire   +3 more sources

Multi-Channel High-Dimensional Data Analysis with PARAFAC-GA-BP for Nonstationary Mechanical Fault Diagnosis

International Journal of Turbomachinery, Propulsion and Power, 2022
Conventional signal processing methods such as Principle Component Analysis (PCA) focus on the decomposition of signals in the 2D time–frequency domain.
Hanxin Chen, Shaoyi Li, Menglong Li
doaj   +1 more source

Characteristics of Soil DOM and Its Effect on the Transformation of Potentially Toxic Elements (PTE) Forms under Organic Fertilizer Return Conditions

Agronomy, 2023
In order to explore the effects of the composition and structure of soil’s dissolved organic matter (DOM) and its electron transfer capacity (ETC) on the bioavailability of the potential toxic elements chromium (Cr), lead (Pb) and cadmium (Cd) after the ...
Hongwei Pan, Lili Shi, Xin Liu, Hongjun Lei, Jie Yu, Guang Yang   +5 more
doaj   +1 more source

Seasonal hydrology and permafrost disturbance impacts on dissolved organic matter composition in High Arctic headwater catchments

Arctic Science, 2017
Arctic landscapes are experiencing intense warming and modification of precipitation regimes with climate change. Permafrost disturbances and climate change impacts on hydrology of Arctic watersheds are likely to modify the quantity and composition of ...
J. Fouché, M. J. Lafrenière, K. Rutherford, S. Lamoureux   +3 more
doaj   +1 more source

Parallel Factorizations in Numerical Analysis

, 2009
15 pages, 5 ...
Pierluigi Amodio, BRUGNANO, LUIGI
openaire   +3 more sources