Results 61 to 70 of about 95,901 (217)
Total Variation Superiorized Conjugate Gradient Method for Image Reconstruction [PDF]
, 2017 The conjugate gradient (CG) method is commonly used for the rapid solution of least squares problems. In image reconstruction, the problem can be ill-posed and also contaminated by noise; due to this, approaches such as regularization should be utilized.
arxiv +1 more source
Review of Policy Research, EarlyView.Abstract This article aims to examine the emergence of a system of multi‐level governance in Higher Education quality assurance during recent decades in Spain, as a particular case within the European Space of Higher Education. Although there is a well‐established multi‐level structure in the governance of this area at the European level, it is not ...
Ana García‐Juanatey +2 more
wiley +1 more source
The Gulf of California is a source of carbon dioxide to the atmosphere
Ciencias Marinas, 2013 Water exchange between the Gulf of California and the Pacific Ocean has a significant vertical component (VCWE). Surface (0–200 m) gulf water flows out into the Pacific Ocean and deep (200–600 m) water flows into the gulf.
Claudia Rodríguez-Ibáñez +3 more
doaj +1 more source
From Graphene Oxide to N‐Doped Graphene: Understanding the Doping Process
Advanced Energy and Sustainability Research, Volume 6, Issue 4, April 2025.Nitrogen‐doped graphene has gained attention as an alternative electrocatalyst, making attractive the development of scalable synthesis methods. However, a current bottleneck is to optimize the appropriate nitrogen species present. Here, the N‐doping mechanism is explored in detail starting from graphene oxide as the precursor, to contribute toward the
José Manuel Ruiz‐Marizcal +7 more
wiley +1 more source
Ciencias Marinas, 2013 Surface waters of the Midriff Islands region of the Gulf of California persistently have the lowest temperatures (SST) and the highest nutrient concentrations of all surface waters of the gulf. The purpose of this work was to characterize the annual and
Laura Lucero Álvarez-Molina +3 more
doaj +1 more source
Particle &Particle Systems Characterization, Volume 42, Issue 4, April 2025.Photoelectrochemical water splitting has risen as one of the best green alternatives to energy production. However, its advancement is heavily dependent on the materials used as photoanodes. Thus, extensive characterization of their band structure and carrier dynamics is mandatory. Fast‐transient absorption spectroscopy is the technique hereby selected
Aswathi K. Sivan +1 more
wiley +1 more source
Ciencias Marinas, 2001 The seasonal variability of dissolved inorganic nutrients (phosphates, PO–34; nitrates, NO–3; nitrites, NO–2) and chlorophyll a was studied during five surveys in nearshore waters of the southern region of the Southern California Bight (SCB).
TL Espinosa-Carreón +3 more
doaj +1 more source
Propuesta de evaluación de la condición física para población general: Batería Dickens
Educación Física y Ciencia, 2020 El objetivo es presentar una batería de pruebas suficientemente precisas y prácticas para evaluar la condición física en adultos argentinos de población general.
Martín Gustavo Farinola +2 more
doaj +1 more source
Decision Making: Superiority Degree [PDF]
arXiv, 2010 It is introduced the concept of Superiority Degree one competitive decision over another. On the basis of this concept the mathematics theoretic structure is developed, which is part of pairs comparisons branch in modern decision making theory. It will be useful for practice and interesting for scientific research.
arxiv
Journal of Geophysical Research: Oceans, Volume 130, Issue 4, April 2025.Abstract A previously uninvestigated necking‐down region in the Gulf of Mexico, associated with the Loop Current eddy (LCE) separations is defined by the 8–16 days variance below the Loop Current system (LCS) around 88.5°W, using an Ocean‐Atmosphere Coupled Regional‐Community Earth System Model (R‐CESM) 9‐year nature run, which reveals the mechanisms ...
Xiao Ge +7 more
wiley +1 more source