Results 81 to 90 of about 4,271,942 (321)

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.
doaj  

Applying nonlinear MODM model to supply chain management with quantity discount policy under complex fuzzy environment

Journal of Industrial Engineering and Management, 2014
Purpose: The aim of this paper is to deal with the supply chain management (SCM) with quantity discount policy under the complex fuzzy environment, which is characterized as the bi-fuzzy variables.
Zhe Zhang, Jiuping Xu
doaj   +1 more source

Tonic signaling of the B‐cell antigen‐specific receptor is a common functional hallmark in chronic lymphocytic leukemia cell phosphoproteomes at early disease stages

Molecular Oncology, EarlyView.
B‐cell chronic lymphocytic leukemia (B‐CLL) and monoclonal B‐cell lymphocytosis (MBL) show altered proteomes and phosphoproteomes, analyzed using mass spectrometry, protein microarrays, and western blotting. Identifying 2970 proteins and 316 phosphoproteins, including 55 novel phosphopeptides, we reveal BCR and NF‐kβ/STAT3 signaling in disease ...
Paula Díez, Pablo Juanes‐Velasco, Marina L. García‐Vaquero, Conrad Droste, Alicia Landeira‐Viñuela, Miguel Alcoceba, Helena Fidalgo‐Gómez, Sara Misiego‐Herrero, Almudena Navarro‐Bailón, Mónica Baile, José M. Bastida, Jose Manuel Sanchez‐Santos, Rafael Góngora, Julia Almeida, Marcos Gonzalez‐Diaz, Alberto Orfao, Javier De Las Rivas, Manuel Fuentes   +17 more
wiley   +1 more source

Collaboration Skills and Puzzles: Development of a Performance-Based Assessment—Results from 12 Primary Schools in Greece

Education Sciences
Collaboration skills are essential for the effectiveness and efficiency of collective efforts in both professional and personal contexts. However, their complex and intertwined nature poses challenges in both defining and assessing them.
Emmanouil A. Demetroulis, Ilias Papadogiannis, Manolis Wallace, Vassilis Poulopoulos, Anastasios Theodoropoulos, Nikos Vasilopoulos, Angeliki Antoniou, Fotini Dasakli   +7 more
doaj   +1 more source

A fuzzy multi-objective model and application for the discrete dynamic temporary facilities location planning problem

Journal of Civil Engineering and Management, 2016
The location of temporary facilities on construction sites is essential to the enhancement of productivity and safety, but it is complex due to the unique issues associated with construction.
Jiuping Xu, Qiurui Liu, Xiao Lei
doaj   +1 more source

Planning for uncertainty [PDF]

Frontiers in Psychology, 2012
A commentary on The nature of belief-directed exploratory choice in human decision-making by Knox, W. B., Otto, A. R., Stone, P., and Love, B. C. (2012). Front. Psychology 2:398. doi: 10.3389/fpsyg.2011.00398 With every choice there is a forgone choice, or opportunity cost. When I choose to dine at a particular restaurant, not only am I giving
openaire   +4 more sources

Expression and DNA methylation of 20S proteasome subunits as prognostic and resistance markers in cancer

Molecular Oncology, EarlyView.
Comprehensive analysis of genomic mutations, gene expression, DNA methylation, and pathway analysis of TCGA data was carried out to define cancer types in which proteasome subunits expression is associated with worse survival. Albeit the effect of specific proteasome subunits on cellular function, the main role of the proteasome is better evaluated ...
Ruba Al‐Abdulla, Simone Venz, Ruslan Al‐Ali, Martin Wendlandt, Mandy Radefeldt, Elke Krüger   +5 more
wiley   +1 more source

Gaming for the Education of Biology in High Schools

Encyclopedia
Game-based learning refers to an educational approach where games (digital or analogue) are used in order to engage students in interactive and immersive experiences designed to teach specific concepts, skills or subjects.
Marina Lantzouni, Vassilis Poulopoulos, Manolis Wallace   +2 more
doaj   +1 more source

Applying bi-random MODM model to navigation coordinated scheduling: a case study of Three Gorges Project

Transport, 2013
The aim of this paper is to deal with the optimal navigation coordinated scheduling (NCS) problem in ship transportation of the Three Gorges Project in China, i.e. the Three Gorges Dam and the Gezhouba Dam. The NCS includes operational scheduling for two
Jiuping Xu, Zhe Zhang, Vijay S. Mookerjee   +2 more
doaj   +1 more source

Coding with Encoding Uncertainty

, 2013
We study the channel coding problem when errors and uncertainty occur in the encoding process. For simplicity we assume the channel between the encoder and the decoder is perfect.
Diggavi, Suhas, Fragouli, Christina, Hachem, Jad, Wang, I-Hsiang   +3 more
core   +1 more source