Results 11 to 20 of about 615,778 (249)
Frontiers in Public Health, 2023 IntroductionSince 2006, the human papillomavirus (HPV) vaccine has been recommended for females aged 9–26 years in the United States. Aiming to evaluate the early effect of the HPV vaccine on cervical cancer, this study assessed the incidence of cervical
Jiao Pei +8 more
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Sur le traitement des vins aux échangeurs d'ions
OENO One, 1972 Parmi la grande diversité des moyens dont on dispose pour le traitement et la stabilisation du vin, on peut mentionner aussi la possibilité d'emploi des échangeurs d'ions synthétiques. Mais cet emploi dans l'œnologie moderne est un problème discuté.
Tz. GANEVA, V. LITCHEV
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DOMESTIC DEMAND ANALYSIS FOR THE AVAILABILITY OF CLEAN WATER AT MAULAFA DISTRICT
Jurnal Teknik Sipil, 2022 The rapid population growth of an area is usually followed by an increase in water demand. The current availability of water is not necessarily able to meet the increasing demand for clean water.
Fransiska C.N. Harmans +2 more
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Journal of Public Health in Africa, 2021 The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) disease (COVID-19) pandemic continues to be a global health problem with a significant impact in Cameroon.
Solange W. Youdom +2 more
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Uncertainty Analysis of Neutron Diffusion Eigenvalue Problem Based on Reduced-order Model
Yuanzineng kexue jishu, 2023 In order to improve the efficiency of core physical uncertainty analysis based on sampling statistics, the proper orthogonal decomposition (POD) and Galerkin projection method were combined to study the application feasibility of reduced-order model ...
In order to improve the efficiency of core physical uncertainty analysis based on sampling statistics, the proper orthogonal decomposition (POD) and Galerkin projection method were combined to study the application feasibility of reduced-order model based on POD-Galerkin method in core physical uncertainty analysis. The two-dimensional two group TWIGL benchmark question was taken as the research object, the key variation characteristics of the core flux distribution were extracted under the finite perturbation of the group constants of each material region, and the full-order neutron diffusion problem was projected on the variation characteristics to establish a reduced-order neutron diffusion model. The reduced-order model was used to replace the full-order model to carry out the uncertainty analysis of the group constants of the material region. The results show that the bias of the mathematical expectation of keff calculated by reduced-order and full-order models is close to 1 pcm. In addition, compared with the calculation time required for uncertainty analysis of full-order model, the analysis time of reduced-order model (including the calculation time of the full-order model required for the construction of reduced-order model) is only 11.48%, which greatly improves the efficiency of uncertainty analysis. The biases of mathematical expectation of keff calculated by reduced-order and full-order models based on Latin hypercube sampling and simple random sampling are less than 8 pcm, and under the same sample size, the bias from the Latin hypercube sampling result is smaller. From the TWIGL benchmark test results, under the same sample size, Latin hypercube sampling method is more recommended for POD-Galerkin reduced-order model.
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Between the Profiles Pay Per View and the Protection of Personal Data: the Product is You
Advances in Distributed Computing and Artificial Intelligence Journal, 2017 Perhaps in the past was difficult to imagine that the moment in which someone could register each purchase that has been made, each book that has been read or each thing that has been said would come.
Ana Karin CHÁVEZ VALDIVIA
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Quantitative analysis and mathematic modeling of the global outbreak of COVID-19
Journal of Infection in Developing Countries, 2020 The coronavirus pandemic is the biggest in the past 100 years, affected over 200 countries and killed over 300 thousand people. To better understand the epidemics in different areas, the progress percentage was generated in this study by dividing ...
Yanyan Jiang +3 more
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Être bénévole dans la scolarisation des migrants
Recherches en didactique des langues et des cultures, 2023 How does the volunteer’s place in the schooling of UAMs (Un Accompanied Minors) come about? How can the intimate history of the volunteer have an impact on the way in which he or she approaches teaching and the relationship with the young minor? It is at
Sandra Cadiou, Patricia Mothes
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Barekeng, 2023 Inflation is one of the variables in the macro economy that can affect people's welfare and is defined as a complex phenomenon due to general and continuous price increases.
Desy Yuliana Dalimunthe +4 more
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The Mesoscopic Connectome of the Cholinergic Pontomesencephalic Tegmentum
Frontiers in Neuroanatomy, 2022 The pontomesencephalic tegmentum, comprising the pedunculopontine nucleus and laterodorsal tegmental nucleus, is involved in various functions via complex connections; however, the organizational structure of these circuits in the whole brain is not ...
Peilin Zhao +9 more
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