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Journal articles on the topic 'Absorbing lemma'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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1

Liu, Lin F., and Juan J. Nieto. "Dissipativity of Fractional Navier–Stokes Equations with Variable Delay." Mathematics 8, no. 11 (2020): 2037. http://dx.doi.org/10.3390/math8112037.

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We use classical Galerkin approximations, the generalized Aubin–Lions Lemma as well as the Bellman–Gronwall Lemma to study the asymptotical behavior of a two-dimensional fractional Navier–Stokes equation with variable delay. By modifying the fractional Halanay inequality and the comparison principle, we investigate the dissipativity of the corresponding system, namely, we obtain the existence of global absorbing set. Besides, some available results are improved in this work. The existence of a global attracting set is still an open problem.

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2

Abdullah, Omer, and Haibat Karim Mohammadali. "Extend Nearly Pseudo Quasi-2-Absorbing submodules(I)." Ibn AL-Haitham Journal For Pure and Applied Sciences 36, no. 2 (2023): 341–53. http://dx.doi.org/10.30526/36.2.3019.

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The concept of a 2-Absorbing submodule is considered as an essential feature in the field of module theory and has many generalizations. This articale discusses the concept of the Extend Nearly Pseudo Quasi-2-Absorbing submodules and their relationship to the 2-Absorbing submodule, Quasi-2-Absorbing submodule, Nearly-2-Absorbing submodule, Pseudo-2-Absorbing submodule, and the rest of the other concepts previously studied. The relationship between them has been studied, explaining that the opposite is not true and that under certain conditions the opposite becomes true. This article aims to st

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3

Cárdenas, Carmen, Danny Ochoa, Mirian Labrador, et al. "Sensibilidad de la lemna obscura a la presencia de fenoles e hidrocarburos livianos." Observador del Conocimiento Vol. 2 Nº 6 junio 2014, no. 2343-6212 (2021): 45–54. https://doi.org/10.5281/zenodo.5257504.

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El objetivo de este estudio fue relacionar los derrames petroleros con la superfloracion de <em>Lemna obscura </em>en el Lago. Se realizaron seis ensayos, durante diez días; cada uno, usando recipientes de vidrio de 25cm x 15cm x 15cm, con agua del Lago de Maracaibo con 50 plantas de <em>Lemna </em>de dos frondes cada una y fotoperíodo 12:12 horas, para cultivar <em>Lemna obscura </em>en 5 concentraciones de fenol (0,25 a 2,5mg/l) y 5 de hidrocarburo liviano (30 a 45mg/l). Durante cada ensayo se midió diariamente los parámetros: pH, conductividad, oxígeno dis

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4

Sun, Chunyou, and Yanbo Yuan. "Lp-type pullback attractors for a semilinear heat equation on time-varying domains." Proceedings of the Royal Society of Edinburgh: Section A Mathematics 145, no. 5 (2015): 1029–52. http://dx.doi.org/10.1017/s0308210515000177.

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We present a new method for investigating the Lp-type pullback attractors (2 ≤ p < ∞) of a semilinear heat equation on a time-varying domain under quite general assumptions on the nonlinear and forcing terms. The existing approach does not appear applicable here as it is impossible to show the existence of a pullback absorbing set in Lp space when p is large. A new asymptotic decomposition scheme for a non-autonomous pullback attractor has been introduced. The abstract results and preliminary lemmas are also of independent interest and applicable to other systems.

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5

Ryvak, R., T. Synyshyna, and H. Harvas. "STUDY OF ABSORBENT PROPERTIES OF FRESHWATER ALGAE LEMNA MINOR ACCORDING TO THE LEVEL OF IODINE ACCUMULATION." Scientific and Technical Bulletin оf State Scientific Research Control Institute of Veterinary Medical Products and Fodder Additives аnd Institute of Animal Biology 25, no. 1 (2024): 147–53. http://dx.doi.org/10.36359/scivp.2024-25-1.20.

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The article describes the unique properties of algae to intensively build up biomass and accumulate the mineral elements present in it from the water environment, the justification of the direction of research on the sorption capacity of freshwater and marine algae, the scheme of the experiment, used materials and methods are described. The study of the sorption capacity of the freshwater algae Lemna minor was carried out in a vivarium under 24-hour lighting using fluorescent lamps, the ambient temperature was 28-30 °C, the air humidity was 75-80%, the temperature of the lake water in glass co

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6

Hoell, J., D. E. Liebscher, and W. Priester. "Confirmation of the Friedmann-Lema??tre universe by the distribution of the larger absorbing clouds." Astronomische Nachrichten 315, no. 2 (1994): 89–96. http://dx.doi.org/10.1002/asna.2103150202.

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7

Mohamad Nasrol, Nasuha binti, Noorashikin Md Saleh, Tanusha Devi Elan Solan, Nor Yuliana Yuhana, Farhanini Yusoff, and Saliza Asman. "Adsorption of Heavy Metal from Wastewater by Bioabsorbent Modified Azolla microphylla and Lemna minor." Sains Malaysiana 53, no. 5 (2024): 1167–83. http://dx.doi.org/10.17576/jsm-2024-5305-15.

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Environmental toxicity from rapid industrialization raises concerns about water pollution caused by industrial waste and urban sewage. Aquatic macrophytes, such as the Azolla species, have shown promise in absorbing heavy metals and nutrients from water. This study introduces a novel approach by evaluating Azolla Microphylla and lemna minor as an economical adsorbent for copper removal from rivers. Moreover, this study stands out by conducting thorough characterization analyses. The adsorbent material underwent XRD, SEM, BET, and FTIR analyses after being crushed and sieved to 1-2 mm. Copper w

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8

Popescu, Sever Angel. "Absorbent property, Krasner type lemmas and spectral norms for a class of valued fields." Proceedings of the Japan Academy, Series A, Mathematical Sciences 89, no. 10 (2013): 138–43. http://dx.doi.org/10.3792/pjaa.89.138.

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9

Pang, Yean Ling, Yen Ying Quek, Steven Lim, and Siew Hoong Shuit. "Review on Phytoremediation Potential of Floating Aquatic Plants for Heavy Metals: A Promising Approach." Sustainability 15, no. 2 (2023): 1290. http://dx.doi.org/10.3390/su15021290.

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Water pollution due to heavy metals has become a serious environmental concern due to their hazardous properties. Since conventional water remediation techniques are generally ineffective and non-environmentally friendly, phytoremediation has gained increasing attention from worldwide researchers and scientists due to its cost-effectiveness and environmental friendliness. Hence, this review first discussed soil and water remediations. Phytoremediation can be divided into five techniques to remove heavy metals from the polluted environment, namely, phytostabilization (phytosequestration), phyto

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10

Roslan, Mohd Naqib Azfar Mohd, Abentin Estim, Balu Alagar Venmathi Maran, and Saleem Mustafa. "Effects of Aquatic Plants on Nutrient Concentration in Water and Growth Performance of Fantail Goldfish in an Aquaculture System." Sustainability 13, no. 20 (2021): 11236. http://dx.doi.org/10.3390/su132011236.

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The effects of two aquatic plants, duckweed (Lemna sp.) and azolla (Azolla sp.), on the growth performance of fantail goldfish (Carassius auratus) and dissolved nutrient concentrations were studied. The experiments were carried out in triplicate sets over a period of seven weeks. Eight specimens of fantail goldfish (length = 5.16 ± 0.06 cm; body weight = 2.30 ± 0.06 g) were released into each of the aquariums containing 40 L of water. Submerged sponge filters were used as the substrate (bed) for the nitrifying bacteria to facilitate nitrification. The fish were provided feed at the rate of 2%

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11

Tai, Jia Wei, Yean Ling Pang, Lim Steven, and Woon Chan Chong. "Phytoremediation of Zinc Ions from Aquatic Macrophytes." Key Engineering Materials 1002 (December 19, 2024): 133–37. https://doi.org/10.4028/p-ta8zbi.

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Heavy metal pollution has been a primary environmental concern that arises from various human activities, including industrial development and technological advancement in manufacturing processes. Conventional wastewater treatment technologies for addressing heavy metals from industrial effluents involve using expensive and hazardous chemicals, which create secondary pollution if the disposal of the used absorbent is not appropriately handled. Phytoremediation is an alternative way for wastewater treatment towards green and sustainable development. This study investigated the duckweed uptake a

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12

Marda, Alexander Burhani, Kukuh Nirmala, Enang Harris, and Eddy Supriyono. "The effectiveness of Lemna perpusilla as phytoremediation agent in giant gourami culture media on 3 ppt." Jurnal Akuakultur Indonesia 14, no. 2 (2015): 122. http://dx.doi.org/10.19027/jai.14.122-127.

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<p class="NoParagraphStyle" align="center"><strong>ABSTRACT</strong></p><p class="NoParagraphStyle" align="center"><strong> </strong></p><p class="NoParagraphStyle">The wasted from feed and feces containt nitrogen and phosphorus can decreased fertility and feability water quality. <em>Lemna perpusilla</em> (duckweed) is prospective to use as an agent of phytoremediation of organic waste and can used as animal feed because it has high protein content. Meanwhile water salinity could be accelerate the growth of giant gourami. The a

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13

DAVVAZ, Bijan, Gülşen ULUCAK, and Ünsal TEKİR. "weakly $ (k,n) $-absorbing (primary) hyperideals of a Krasner $ (m,n) $-hyperring." Hacettepe Journal of Mathematics and Statistics, December 31, 2023, 1–10. http://dx.doi.org/10.15672/hujms.1199437.

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In this paper, we introduce new expansion classes, namely weakly $ (k,n) $-absorbing hyperideals and weakly $ (k,n) $-absorbing primary hyperideals of a Krasner $ (m,n) $-hyperring, including $ (k,n) $-absorbing hyperideal and $ (k,n) $-absorbing primary hyperideal. Therefore, we give generalizations of $ (k,n) $-absorbing hyperideal and $ (k,n) $-absorbing primary hyperideal. Also, we examine the relations between classical hyperideals and the new hyperideals and explore some ways to connect them. Additionally, some main results and examples are given to explain the structures of these concep

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14

Han, Jie. "On Perfect Matchings in k-Complexes." International Mathematics Research Notices, January 11, 2020. http://dx.doi.org/10.1093/imrn/rnz343.

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Abstract Keevash and Mycroft [ 19] developed a geometric theory for hypergraph matchings and characterized the dense simplicial complexes that contain a perfect matching. Their proof uses the hypergraph regularity method and the hypergraph blow-up lemma recently developed by Keevash. In this note we give a new proof of their results, which avoids these complex tools. In particular, our proof uses the lattice-based absorbing method developed by the author and a recent probabilistic argument of Kohayakawa, Person, and the author.

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15

Pamungkas, Inggia P., Yuli Andriani, Junianto ., and Iskandar . "Lemna sp. as a Chromium Heavy Metal Phytoremediator on Tannery Wastewater and its Potential Use as Fish Feed." Asian Plant Research Journal, September 7, 2019, 1–7. http://dx.doi.org/10.9734/aprj/2019/v3i130057.

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Aims: This research aims to determine the ability of Lemna sp. as a phytoremediation agent in absorbing chromium (Cr) in tannery wastewater. Study Design: A total of 20 fiber tubs with size 80 x 80 x 40 cm3 and volume of 256 L were prepared and filled with 30 L each of the tannery wastewater and 1.75% bio-slurry added with a volume of wastewater as a source of nutrition for Lemna sp.. The number of Lemna sp. which is used for culture was 180 g for each fiber tube. Place and Duration of Study: Culturing Lemna sp. in tannery wastewater were carried out in Ciparanje Land Fisheries Are

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16

Martyn, Tomasz. "A computer scientist’s perspective on approximation of IFS invariant sets and measures with the random iteration algorithm—proofs and examples." International Journal of Electronics and Telecommunications, April 7, 2025, 19. https://doi.org/10.24425/ijet.2025.153539.

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We present proofs of the theorems and lemmas demonstrated previously in our paper [1]. We also display some visual examples of minimal absorbing sets and their basins of attractions generated by δ-roundoffs of two-dimensional linear contractions as well as visualizations of DIFS stationary probability measures.

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17

Tariq, Muhammad, Soubhagya Kumar Sahoo, Hijaz Ahmad, Asif Ali Shaikh, Bibhakar Kodamasingh, and Dawood Khan. "Some integral inequalities via new family of preinvex functions." Mathematical Modelling and Numerical Simulation with Applications, June 30, 2022. http://dx.doi.org/10.53391/mmnsa.2022.010.

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The main objective of this work is to introduce and define the concept of s-type m-preinvex function and derive the new sort of Hermite-Hadamard inequality via the newly discussed idea. Furthermore, to enhance the quality of paper, we prove two new lemmas and in order to these lemmas, we attain some extensions of Hermite-Hadamard-type inequality in the manner of newly explored definition. The concepts and tools of this paper may invigorate and revitalize for additional research in this mesmerizing and absorbing field of mathematics.

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18

Hau, Eng Huan, and Siau Hui Mah. "Duckweed: Growth factor and applications in nonfood, food, and health." Food Safety and Health, November 3, 2024. http://dx.doi.org/10.1002/fsh3.12078.

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AbstractDuckweeds are aquatic plants and mainly constitute of five genera, Lemna, Spirodela, Wolffia, Wolffiella, and Landoltia. These are the smallest plants yet having a rapid growth rate. Hence, duckweeds are sustainable food sources for humans and animals, as well as sustainable feedstocks for biochemical production. Previously, duckweeds were discovered for their vital role in water purification by metabolizing chemicals and waste. However, many recent studies have discovered that duckweeds have a high amount of nutrients, which makes them a great substitute in human diets and animal feed

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