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Journal articles on the topic 'Dynamical filtrations'

Author: Grafiati

Published: 14 December 2024

Last updated: 31 July 2025

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1

Bartłomiejczyk, P., and Z. Dzedzej. "Index filtrations and Morse decompositions for discrete dynamical systems." Annales Polonici Mathematici 72, no. 1 (1999): 51–70. http://dx.doi.org/10.4064/ap-72-1-51-70.

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2

Gordin, M. I. "Double extensions of dynamical systems and constructing mixing filtrations." Journal of Mathematical Sciences 99, no. 2 (2000): 1053–60. http://dx.doi.org/10.1007/bf02673626.

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3

Jiao, Rui, Wei Liu, and Yijun Hu. "The Optimal Consumption, Investment and Life Insurance for Wage Earners under Inside Information and Inflation." Mathematics 11, no. 15 (2023): 3415. http://dx.doi.org/10.3390/math11153415.

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This paper studies the dynamically optimal consumption, investment and life-insurance strategies for a wage earners under inside information and inflation. Assume that the wage earner can invest in a risk-free asset, a risky asset and an inflation-indexed bond and that the wage earner can obtain some additional information on the risky asset from the financial market. By maximizing the expected utility of the wage earner’s consumption, inheritance and terminal wealth, we obtain the dynamically optimal consumption, investment and life-insurance strategies for the wage earner. The method of this

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4

KCHIA, YOUNES, and PHILIP PROTTER. "PROGRESSIVE FILTRATION EXPANSIONS VIA A PROCESS, WITH APPLICATIONS TO INSIDER TRADING." International Journal of Theoretical and Applied Finance 18, no. 04 (2015): 1550027. http://dx.doi.org/10.1142/s0219024915500272.

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The development of the theory of the expansion of filtrations took place mostly three decades ago, in the 1980s. Researchers developed two types of expansions: Initial expansions, where one adds information to the σ algebra ℱ0, and progressive expansions, where information is added dynamically to turn a positive random variable (such as a last exit time) into a stopping time. The goal was to preserve the semimartingale property in the enlarged filtration. In this paper, we propose a new type of expansion, that of expansion with a stochastic process. This has antecedents in the work of Jeulin,

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Atamanyuk, Volodymyr, and Yaroslav Gumnytskyi. "Mass Exchange Dynamics During the Second Filtration Drying Period." Chemistry & Chemical Technology 3, no. 2 (2009): 129–37. http://dx.doi.org/10.23939/chcht03.02.129.

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The work is dedicated to theoretical and experimental investigations of kinetics and dynamics of filtration drying of capillary and pore materials, and mineral granulated fertilizers, in particular. The proposed physical model of a moist particle and the differential system of equations which describes heat exchange in the second drying period enables to determine the transfer velocity of mass-exchange zone in a dispersion layer of the material during filtration drying.

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6

Razvan, M. R. "On Conley's fundamental theorem of dynamical systems." International Journal of Mathematics and Mathematical Sciences 2004, no. 26 (2004): 1397–401. http://dx.doi.org/10.1155/s0161171204202125.

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7

Savrassov, Ju S. "Algorithms of filtration and extrapolation for discrete-time dynamical systems." Acta Applicandae Mathematicae 30, no. 3 (1993): 193–263. http://dx.doi.org/10.1007/bf00995471.

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8

Duda, Zdzisław. "Hierarchical filtration for distributed linear multisensor systems." Archives of Control Sciences 22, no. 4 (2012): 507–18. http://dx.doi.org/10.2478/v10170-011-0038-7.

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In the paper two filtration algorithms for distributed multisensor system are presented. The first one is derived for a linear dynamical system composed of local subsystems described by local state equations. Local estimates are sent to a central station to be fused and formed an optimal global estimate. The second algorithm is derived for a system observed by local nodes that determine estimates of the whole system using local information and periodically aggregated information from other nodes. Periodically local estimates are sent to the central station to be fused. Owing to this a reduced

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H.Z, Igamberdiev, and Kholodzhayev B.A. "ALGORITHMS FOR SUSTAINABLE RECOVERY OF INPUT INFLUENCE ON THE BASIS OF DYNAMIC FILTRATION METHODS." International Journal of Psychosocial Rehabilitation 24, no. 03 (2020): 232–39. http://dx.doi.org/10.37200/ijpr/v24i3/pr200774.

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10

Mahamadou Harouna, Bassirou, Othmane Benkortbi, Salah Hanini, and Abdeltif Amrane. "Modeling of transitional pore blockage to cake filtration and modified fouling index – Dynamical surface phenomena in membrane filtration." Chemical Engineering Science 193 (January 2019): 298–311. http://dx.doi.org/10.1016/j.ces.2018.07.054.

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Bang, Jong-Geun, and Yoong-Sup Yoon. "Analysis of Filtration Performance by Brownian Dynamics." Transactions of the Korean Society of Mechanical Engineers B 33, no. 10 (2009): 811–19. http://dx.doi.org/10.3795/ksme-b.2009.33.10.811.

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12

Afanasyev, Y. D., and E. K. Demirov. "A variational filtration and interpolation technique for PIV employing fluid dynamical constraints." Experiments in Fluids 39, no. 5 (2005): 828–35. http://dx.doi.org/10.1007/s00348-005-0017-5.

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13

Jasiński, Bartłomiej. "Określenie dynamicznej filtracji płuczek wiertniczych w warunkach HPHT z użyciem nowatorskiej metody pomiarowej." Nafta-Gaz 74, no. 2 (2018): 85–95. http://dx.doi.org/10.18668/ng.2018.02.02.

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14

Zakariah, Yusof, Abdul Wahab Norhaliza, Ibrahim Syahira, Sahlan Shafishuhaza, and Che Razali Mashitah. "Modeling of submerged membrane filtration processes using recurrent artificial neural networks." International Journal of Artificial Intelligence (IJ-AI) 9, no. 1 (2020): 155–63. https://doi.org/10.11591/ijai.v9.i1.pp155-163.

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The modeling of membrane filtration processes is a challenging task because it involves many interactions from both biological and physical operational behavior. Membrane fouling behaviour in filtration processes is complex and hard to understand, and to derive a robust model is almost not possible. Therefore, it is the aim of this paper to study the potential of time series neural network based dynamic model for a submerged membrane filtration process. The developed model that represent the dynamic behavior of filtration process is later used in control design of the membrane filtration proce

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15

Yelisieiev, Volodymyr, Vasyl Lutsenko, and Vadim Berkout. "Filtration of dynamically adsorbed gas in a bidisperse porous layer." Geo-Technical Mechanics, no. 169 (2024): 118–25. https://doi.org/10.15407/geotm2024.169.118.

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Among the problems related to filtration and mass transfer in porous bodies, the problems of the adsorption-desorption are currently of the greatest interest. This is due to a wide range of problems: the safety of mining and coal developments, the extraction of combustible gases, the storage of greenhouse gases in formations. At the same time, in theoretical terms, issues related to the multi-scale nature of fractured-porous media, in particular, mining and coal seams, are gaining wide popularity. This paper considers the problem of filtration flow during gas injection into a porous formation,

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16

Wang, Hao, Junfei Wu, Ping Fu, Zhiping Qu, Wenjie Zhao, and Yixuan Song. "CFD-DEM Study of Bridging Mechanism of Particles in Ceramic Membrane Pores under Surface Filtration Conditions." Processes 10, no. 3 (2022): 475. http://dx.doi.org/10.3390/pr10030475.

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In the surface filtration process with pores larger than the particle size, the formation of particle bridges plays a crucial role in the filter cake structure and the filtration efficiency throughout the filtration process. First, to understand the microscopic information required for the bridging mechanism, we use the two-way coupling of computational fluid dynamics (CFD)–discrete element method (DEM) to simulate the deposition characteristics of particles in the pores of ceramic membranes. Next, by dynamically observing the deposition morphology and bridging process of particles, the bridgi

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17

Boychuk, Leonid M. "Two Approaches to the Structural Synthesis of Control Systems: Dynamical Filtration and Automatic Compensation." Journal of Automation and Information Sciences 30, no. 6 (1998): 13–22. http://dx.doi.org/10.1615/jautomatinfscien.v30.i6.20.

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18

Gotfredsen, Anders, Lene Bæksgaard, and And Jannik Hilsted. "Body composition analysis by DEXA by using dynamically changing samarium filtration." Journal of Applied Physiology 82, no. 4 (1997): 1200–1209. http://dx.doi.org/10.1152/jappl.1997.82.4.1200.

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Gotfredsen, Anders, Lene Bæksgaard, and Jannik Hilsted.Body composition analysis by DEXA by using dynamically changing samarium filtration. J. Appl. Physiol.82(4): 1200–1209, 1997.—Dual-energy X-ray absorptiometry (DEXA) has a high accuracy for body composition analysis but is influenced by beam hardening and other error sources in the extremes of measurement. To compensate for beam hardening, the Norland XR-36 introduces a dynamically changing samarium filtration system, which depends on the current-absorber thickness. With this system we found a good agreement ( r = 0.99) between reference a

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19

Pongsumpun, Puntipa, and Puntani Pongsumpun. "The Simulation Model of Dengue Transmission by Gender of Human in Thailand." International Journal of Membrane Science and Technology 10, no. 4 (2023): 1319–31. http://dx.doi.org/10.15379/ijmst.v10i4.2246.

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Dengue disease can be transmitted to human by the biting of infected Aedes aegypti mosquitoes. This disease has 4 serotypes such as DEN-1, DEN-2, DEN-3 and DEN-4. The symptoms of this disease are high fever, headache, body aches, nausea and rash. This paper describes the spread of this disease by formulating the dynamical model between human and mosquito populations. The human are separating into man and woman populations. The standard dynamical modelling method is used to analyze our dynamical model. The numerical solutions are presented. The basic reproduction value of the disease is found.

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20

Feng, Xiao, Shilei Zhang, Zhenzhong Shi, et al. "Evolution Mechanism of Filtration Characteristics of Cement Grouting Materials in Sandy Medium." Materials 18, no. 10 (2025): 2385. https://doi.org/10.3390/ma18102385.

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The seepage diffusion of cement grouting materials into a sandy medium is influenced by the skeleton’s adsorption and the pore channels’ tortuosity, resulting in heterogeneous retention of cement particles during migration. This study established a theoretical model for the filtration coefficient based on the mass balance equation and linear filtration law. Grouting tests were conducted to determine the density of the cement slurry at various diffusion positions, and the filtration coefficient was calculated using the theoretical model. Results indicate that the filtration coefficient varies d

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21

Kostyuchenko, S. V., and N. A. Cheremisin. "Dynamic phase permeability for calculating oil locations in digital models." Oil and Gas Studies, no. 5 (October 31, 2021): 168–76. http://dx.doi.org/10.31660/0445-0108-2021-5-168-176.

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The article presents the author's formulas for calculating the residual oil saturation and the end points of relative phase permeabilities that dynamically depend on the filtration rate of reservoir fluids and capillary numbers. The dependences of the residual oil saturation and the end points of the phase permeabilities on the capillary number are investigated and described. An element of a five-point system for the development of an oil deposit case study shows the possibility of calculating oil targets using dynamic phase permeabilities. The difference between the model with static relative

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22

Nematov, Abdugani, Mohiniso Makhmudova, Abror Nazirov, Akbar Bakhriddinov, and Zhasulan Molzhigitov. "NUMERICAL MODELING OF THE FILTRATION PROCESS IN DYNAMICALLY INTERCONNECTED MULTILAYER GAS FIELDS." Journal of Problems in Computer Science and Information Technologies 3, no. 2 (2025): 75–83. https://doi.org/10.26577/jpcsit20253206.

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This article is devoted to modeling of the gas filtration process in a dynamically interconnected multilayer porous medium. The article is devoted to modeling the process of gas filtration in a dynamically interconnected multilayer porous medium. In the article, the process of gas filtration in a heterogeneous three layer porous medium with low-permeability intermediate layers and the dynamic interaction between the layers are described by a mathematical model based on a system of differential equations of parabolic type. This mathematical model is numerically simulated using finite difference

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23

Xia, Yongfang, Tingyong Fang, Haitao Wang, Erbao Guo, and Jinwei Ma. "Numerical investigation of low-velocity filtration combustion instability based on the initial preheating non-uniformity." E3S Web of Conferences 136 (2019): 02040. http://dx.doi.org/10.1051/e3sconf/201913602040.

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The effects of the initial preheating perturbation on the dynamical behaviors of FGC wave propagation instability for low-velocity FGC in packed bed are studied numerically. The behaviors of the flame front inclination, break, and shrinking instabilities are always observed in experiments. Based on the experimental phenomena, an initial thermal perturbation model is numerically proposed as to predict the deformation behaviors of the flame front instabilities. The typical flame shapes are obtained depending on filtration velocity, equivalence ratio, and initial preheating temperature difference

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24

Jepsen, Kasper L., Mads V. Bram, Leif Hansen, Zhenyu Yang, and Steven M. Ø. Lauridsen. "Online Backwash Optimization of Membrane Filtration for Produced Water Treatment." Membranes 9, no. 6 (2019): 68. http://dx.doi.org/10.3390/membranes9060068.

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In the offshore oil and gas sector, produced water is discharged into the sea, but increasing environmental concerns and stricter governmental regulations require new technologies to be considered. Membrane filtration is a promising technology to improve separation, but fouling of the membranes causes a significant reduction in flow capacity. To reduce fouling, optimization of the backwashing parameters is given much attention. Comprehensive and time-consuming experiments are used to model the effect of backwashing, but most methods neglect time varying features present in the offshore produce

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25

Zhang, Shu Dong, Zhen Xing Sun, and Ning Luo. "Design and Implementation of Report Model for Base Information of Farm Produce Quantity Security Based on TelerikReporting Component." Key Engineering Materials 480-481 (June 2011): 872–76. http://dx.doi.org/10.4028/www.scientific.net/kem.480-481.872.

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We design and implement a kind of dynamic report model in Silverlight application which based on TelerikReporting component and the technology of dynamic linked library. This model supports multi-parameter choice and can format custom report dynamically based on decided condition. By custom filter, this model implements filtrating large amount of data by receiving multiple parameters with multiple values.

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26

Grudzien, Colin, Alberto Carrassi, and Marc Bocquet. "Chaotic dynamics and the role of covariance inflation for reduced rank Kalman filters with model error." Nonlinear Processes in Geophysics 25, no. 3 (2018): 633–48. http://dx.doi.org/10.5194/npg-25-633-2018.

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Abstract. The ensemble Kalman filter and its variants have shown to be robust for data assimilation in high dimensional geophysical models, with localization, using ensembles of extremely small size relative to the model dimension. However, a reduced rank representation of the estimated covariance leaves a large dimensional complementary subspace unfiltered. Utilizing the dynamical properties of the filtration for the backward Lyapunov vectors, this paper explores a previously unexplained mechanism, providing a novel theoretical interpretation for the role of covariance inflation in ensemble-b

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27

CORNEA, O., K. A. DE REZENDE, and M. R. DA SILVEIRA. "Spectral sequences in Conley’s theory." Ergodic Theory and Dynamical Systems 30, no. 4 (2009): 1009–54. http://dx.doi.org/10.1017/s0143385709000479.

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AbstractIn this paper, we analyse the dynamics encoded in the spectral sequence (Er,dr) associated with certain Conley theory connection maps in the presence of an ‘action’ type filtration. More specifically, we present an algorithm for finding a chain complex C and its differential; the method uses a connection matrix Δ to provide a system that spans Er in terms of the original basis of C and to identify all of the differentials drp:Erp→Erp−r. In exploring the dynamical implications of a non-zero differential, we prove the existence of a path that joins the singularities generating E0p and E0

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28

Dr., Nand Kumar Singh. "ACCESSING INFORMATION ON INTERNET: TOOLS AND TECHNIQUES TO BYPASS FILTRATION." INTERNATIONAL EDUCATION AND RESEARCH JOURNAL - IERJ 10, no. 12 (2024): 141–47. https://doi.org/10.5281/zenodo.15592491.

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Internet filtration is the control or suppression of what can be accessed, published, or viewed on the Internet. Filtering can be based on relatively static blacklist or be determined more dynamically based on real-time examination of the information being exchanged. There are many individuals, corporations and governments who favor Internet filtration. Internet filtration takes many forms. For example, governments may block regular e-mail services in order to compel citizens to use government e-mail that can be easily monitored, filtered, or shut down. Parents can control the content their mi

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29

Kong, Xiangwei, Bing Liu, Hongxing Xu, Jianwen Shen, and Song Li. "Optimization and Performance Evaluation of Foam Acid Systems for Plugging Removal in Low Pressure Oil and Gas Reservoirs." Processes 11, no. 3 (2023): 649. http://dx.doi.org/10.3390/pr11030649.

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Foam acidization has unique advantages such as low damage, low filtration, low friction, high efficiency, excellent retardation, and fast liquid discharge rate, which is suitable for stimulation and reconstruction of low-pressure oil and gas reservoirs that have been developed over many years. It is obtained that the main chemical components of downhole plugging materials include vegetable oil, fatty acids and their esters, silicone oil, amide polymers, and additional organic components, as well as non-organic components, elemental sulfur, ferrous sulfide, iron disulfide, silicon dioxide, mine

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30

Abdelraouf, M. E., A. Kandil, W. K. Zahra, and A. Elsaid. "Investigation of a MEMS resonator model with quintic nonlinearity." Journal of Physics: Conference Series 2793, no. 1 (2024): 012019. http://dx.doi.org/10.1088/1742-6596/2793/1/012019.

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Abstract Micro-electromechanical system (MEMS) resonator is decidedly utilized in a diversity of areas, including time referencing, movement sensing, signal filtration, mass detecting, and further numerous applications. The aim of this article is to use the multiple scales approach to derive analytical formulas for MEMS resonator vibration response. The properties of the complicated nonlinear system at various AC and DC voltages are investigated to be extremely well captured by modeling the dynamics of the micro-beam using multiple scales technique. The resulting Jacobian matrix eigenvalues ar

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31

Liu, Xu. "Optimization of sewage treatment processes: Process control based on artificial intelligence." Applied and Computational Engineering 93, no. 1 (2024): 185–90. http://dx.doi.org/10.54254/2755-2721/93/20240981.

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Abstract. The optimization of sewage treatment processes is critical for improving efficiency and reducing energy consumption. This paper explores the application of machine learning and artificial intelligence algorithms in optimizing key processes such as aeration, sedimentation, and filtration. By leveraging real-time monitoring and adaptive control, these algorithms can dynamically adjust operational parameters to enhance treatment efficiency and minimize energy usage. This study provides detailed insights into the implementation and benefits of AI-driven process control in sewage treatmen

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32

Legowo, Ari, Zahratu H. Mohamad, and Hoon Cheol Park. "Mixed Unscented Kalman Filter and Differential Evolution for Parameter Identification." Applied Mechanics and Materials 256-259 (December 2012): 2347–53. http://dx.doi.org/10.4028/www.scientific.net/amm.256-259.2347.

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This paper presents parameters estimation techniques for coupled industrial tanks using the mixed Unscented Kalman Filter (UKF) and Differential Evolution (DE) method. UKF have known to be a typical estimation technique used to estimate the state vectors and parameters of nonlinear dynamical systems and DE is one of the most powerful stochastic real-parameter optimization algorithms. Meanwhile, liquid tank systems play important role in industrial application such as in food processing, beverage, dairy, filtration, effluent treatment, pharmaceutical industry, water purification system, industr

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33

Shakhverdiev, A. Kh. "Effect of irreversible and unstable processes on reservoir recovery." SOCAR Proceedings, no. 1 (March 30, 2024): 87–94. http://dx.doi.org/10.5510/ogp20240100945.

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Hysteresis behaviour, during filtration, is caused by lithological differences in geo-fluid-dynamical media, geological-physical characteristics, and properties of saturating fluids. Typically, irreversible changes are caused by excessive external loads on the investigated porous media. The proposed solutions are part of a new concept of unsteady water flooding, which allows for early prediction of water breakthrough into production wells. This text discusses the negative impact of hysteresis phenomena on oil recovery and proposes a solution. To solve this task, control parameters, based on gr

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34

Holdich, R. G., and J. S. Boston. "Microfiltration using a dynamically formed membrane." Filtration & Separation 27, no. 3 (1990): 184–87. http://dx.doi.org/10.1016/0015-1882(90)80061-o.

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35

González, Enrique, Oliver Díaz, Luisa Vera, Luis E. Rodríguez-Gómez, and Juan Rodríguez-Sevilla. "Feedback control system for filtration optimisation based on a simple fouling model dynamically applied to membrane bioreactors." Journal of Membrane Science 552 (April 2018): 243–52. http://dx.doi.org/10.1016/j.memsci.2018.02.007.

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36

Garg, Puneet. "A Review of Podocyte Biology." American Journal of Nephrology 47, Suppl. 1 (2018): 3–13. http://dx.doi.org/10.1159/000481633.

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Background: Podocyte biology is a developing science that promises to help improve understanding of the mechanistic nature of multiple diseases associated with proteinuria. Proteinuria in nephrotic syndrome has been linked to mechanistic dysfunctions in the renal glomerulus involving the function of podocyte epithelial cells, including podocyte foot process effacement. Summary: Developments in imaging technology are improving knowledge of the detailed structure of the human renal glomerulus and cortex. Podocyte foot processes attach themselves to the glomerular capillaries at the glomerular ba

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37

MAHUYA, NANDA, and KUMAR SANYAL SAROJ. "Simultaneous Transport of Aqueous Solutes in Four Soils of West Bengal." Journal of Indian Chemical Society Vol. 74, Mar 1997 (1997): 183–86. https://doi.org/10.5281/zenodo.5877322.

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Department of Agricultural Chemistry and Soil Science, Bidhan Chandra Krishi Viswavidyalaya, Kalyani-741 235 <em>Manuscript received 12 April 1994, revised 5 May 1995, accepted 27 October 1995</em> Coupled osmotic transport processes Involving passage of aqueous CuSO<sub>4</sub>, KH<sub>2</sub>PO<sub>4</sub> and NH<sub>4</sub>CI in four soils of contrasting properties have been studied. The resulting reflection coefficient. mechanical filtration capacity and solute permeability for various transport systems have been related generally to the contents of day and presence or absence of micaceous

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38

Nikiforov, Anatoly, and Roman Sadovnikov. "Particle removal by two-phase filtration flow from a porous medium under wave action." Georesursy 23, no. 4 (2021): 58–64. http://dx.doi.org/10.18599/grs.2021.4.7.

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The paper discusses the influence of wave action on the process of detachment and removal of particles from a porous body by a two-phase filtration flow. When modeling this process, the problem of the influence of the wave field on the force under the action of which the particles are detached from the pore walls is solved. For the first time, a pore-size distribution function is used for its solution. An expression for the critical flow velocity under wave action has been obtained. Critical frequency value of wave action depends on the capillary radius and the smaller the capillary radius is,

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Schmid, Martin G., Karin Schreiner, Daniela Reisinger, and Gerald Gübitz. "Fast chiral separation by ligand-exchange HPLC using a dynamically coated monolithic column." Journal of Separation Science 29, no. 10 (2006): 1470–75. http://dx.doi.org/10.1002/jssc.200600102.

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40

Anzian, Kouadio Fabrice, Mykhailo Illich Fyk, Al-Sultan Mohammed Bassam, Mohammed Khaleel Abbood, Haval Mohammed Abdullatif, and Yevhen Alexender Shapchenko. "Analysis of Dynamical Heat Conductivity of the Reservoir and Fluid Evacuation Zone on the Gas Condensate Well Flow Rate." J — Multidisciplinary Scientific Journal 3, no. 1 (2020): 124–37. http://dx.doi.org/10.3390/j3010011.

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This study shows that the thermal conductivity of the rock borehole adjacent to the wells varies depending on the operation of the well. This is due to the fact that the actual temperature and temperature difference affect the humidity and other thermal properties of the rocks, which in turn affect the heat transfer coefficient across the section between the moving gas and the rocks. The static temperature field of primitive geothermal gradients acquires changes in a dynamic form. Theoretical consideration of changes in the thermal conductivity of rocks near the face and the wells is proposed

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41

Dali, Ioseliani, Balarjishvili Gulnara, Kalabegashvili Neli, Nonikashvili Nino, and Samkharadze Liana. "Zinc ions adsorption under dynamic conditions with the use of Georgian minerals." World Journal of Advanced Research and Reviews 24, no. 3 (2024): 1914–18. https://doi.org/10.5281/zenodo.15201763.

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The article deals with the studies of chemically active natural minerals of Georgia: travertine and limestone under dynamic conditions, which have been explored for the first time as adsorbents in the process of aqueous solutions’ purification from zinc ions. Tests have been conducted in filtration columns at different hydraulic loads until the ratio of zinc concentration in sewage waters Ck to initial zinc concentration Co (Ck/Co) reached the value of 0,95. The dependence of zinc adsorption degree on aqueous solution delivery rate, time duration of adsorbent operation and dependence of

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42

Virbulis, J., J. Telicko, A. Sabanskis, D. D. Vidulejs, and A. Jakovics. "Numerical Model and System for Prediction and Reduction of Indoor Infection Risk." Latvian Journal of Physics and Technical Sciences 60, s6 (2023): 5–19. http://dx.doi.org/10.2478/lpts-2023-0041.

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Abstract The developed numerical model assesses the risk of a COVID-19 infection in a room based on the measurements of temperature, relative humidity, CO2 and particle concentration, as well as the number of people and occurrences of speech, coughing, and sneezing obtained through a low-cost sensor system. As the model operates faster than real-time, it can dynamically inform the persons in the room or building management system about the predicted risk level. When the infection risk is high, the model can activate an air purifier equipped with filtration and UV-C disinfection. This solution

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43

Lima, Wagner Ferreira, and Rudolf Huebner. "Optimization of Air Distribution in a Baghouse Filter Using Computational Fluid Dynamics." Engineering, Technology & Applied Science Research 9, no. 4 (2019): 4452–56. https://doi.org/10.5281/zenodo.3370638.

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Baghouse filters are used to reduce the emission of pollutants in the atmosphere. With the stricter environmental regulations and the need to avoid the emission of pollutants into the atmosphere, the demand for better results in terms of collection efficiency and filtration rises. A good performance of a baghouse filter is closely linked to the correct flow distribution inside it, whether in the hopper or in the bags. Other important variables for good performance are internal speed, filtration rate (RAP), pressure drop, cleaning efficiency, etc. The upgrading of existing bag filters to curren

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Sanders, Steven L., Krassimira A. Garbett, and P. Anthony Weil. "Molecular Characterization of Saccharomyces cerevisiae TFIID." Molecular and Cellular Biology 22, no. 16 (2002): 6000–6013. http://dx.doi.org/10.1128/mcb.22.16.6000-6013.2002.

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ABSTRACT We previously defined Saccharomyces cerevisiae TFIID as a 15-subunit complex comprised of the TATA binding protein (TBP) and 14 distinct TBP-associated factors (TAFs). In this report we give a detailed biochemical characterization of this general transcription factor. We have shown that yeast TFIID efficiently mediates both basal and activator-dependent transcription in vitro and displays TATA box binding activity that is functionally distinct from that of TBP. Analyses of the stoichiometry of TFIID subunits indicated that several TAFs are present at more than 1 copy per TFIID complex

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Shi, Ruheng, Yuanlong Zhang, Tiankuang Zhou, and Lingjie Kong. "HiLo Based Line Scanning Temporal Focusing Microscopy for High-Speed, Deep Tissue Imaging." Membranes 11, no. 8 (2021): 634. http://dx.doi.org/10.3390/membranes11080634.

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High-speed, optical-sectioning imaging is highly desired in biomedical studies, as most bio-structures and bio-dynamics are in three-dimensions. Compared to point-scanning techniques, line scanning temporal focusing microscopy (LSTFM) is a promising method that can achieve high temporal resolution while maintaining a deep penetration depth. However, the contrast and axial confinement would still be deteriorated in scattering tissue imaging. Here, we propose a HiLo-based LSTFM, utilizing structured illumination to inhibit the fluorescence background and, thus, enhance the image contrast and axi

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Sobolev, V. "MATHEMATICAL MODEL OF COAL AND GAS EMISSION." Sciences of Europe, no. 114 (April 10, 2023): 102–9. https://doi.org/10.5281/zenodo.7811574.

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A physico mathematical model of the process of coal and gas ejection is proposed, which is based on the gas filtration equation. The model takes into account the stress state of the coal mass, but does not take into account the properties of outburst hazardous coals: electret potential, the degree of chemical activity, the role of the additional energy reserve of the coal microstructure, and active gas generation directly in the in the process of ejection of the hive into the mined-out space. It is shown that the absolute values of the coal emission hazard criteria are not known.

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Schiller, Alicia M., Peter R. Pellegrino, and Irving H. Zucker. "Renal nerves dynamically regulate renal blood flow in conscious, healthy rabbits." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 310, no. 2 (2016): R156—R166. http://dx.doi.org/10.1152/ajpregu.00147.2015.

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Despite significant clinical interest in renal denervation as a therapy, the role of the renal nerves in the physiological regulation of renal blood flow (RBF) remains debated. We hypothesized that the renal nerves physiologically regulate beat-to-beat RBF variability (RBFV). This was tested in chronically instrumented, healthy rabbits that underwent either bilateral surgical renal denervation (DDNx) or a sham denervation procedure (INV). Artifact-free segments of RBF and arterial pressure (AP) from calmly resting, conscious rabbits were used to extract RBFV and AP variability for time-domain,

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Werner, Roman Alejandro, Alexander Michael Hummel, Dominik Ulrich Geier, and Thomas Becker. "Investigations on Backflush Cleaning of Spent Grain-Contaminated Filter Cloths Using Continuous and Pulsed Jets." Foods 11, no. 12 (2022): 1757. http://dx.doi.org/10.3390/foods11121757.

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This study investigated the continuous and pulsed backflush cleaning of woven fabrics that act as filter media in the food and beverage industry. Especially in breweries, they are commonly used in mash filters to separate solid spent grains from liquid wort. After filtration, the removal of such cereal residues via self-discharge is necessary. However, this filter cake discharge is typically incomplete, and various spots remain contaminated. In addition to the reduced filter performance of subsequent batches, cross-contamination risk increases significantly. A reproducible contamination method

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Matcharashvili, T., T. Chelidze, and Z. Javakhishvili. "Nonlinear analysis of magnitude and interevent time interval sequences for earthquakes of the Caucasian region." Nonlinear Processes in Geophysics 7, no. 1/2 (2000): 9–20. http://dx.doi.org/10.5194/npg-7-9-2000.

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Abstract. It is well known that lithospheric seismic processes are characterized by self-similarity or scale invariance in terms of earthquake-size, time, space and space-time distributions, although precise details of underlying dynamics are not clear. In this study we apply nonlinear dynamics theory tools, such as a correlation dimension, "surrogate" data analysis and positive Lyapunov exponent calculation, to investigate dynamical characteristics of seismicity in the Caucasian region. Interevent time intervals and magnitude sequences are considered for different area and magnitude windows.

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He, Yan, Colleen Isele, Weiying Hou, and Margaret Ruesch. "Rapid analysis of charge variants of monoclonal antibodies with capillary zone electrophoresis in dynamically coated fused-silica capillary." Journal of Separation Science 34, no. 5 (2011): 548–55. http://dx.doi.org/10.1002/jssc.201000719.

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