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Artykuły w czasopismach na temat „Active Granular Matter”

Autor: Grafiati

Data publikacji: 6 września 2023

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1

Morse, Peter K., Sudeshna Roy, Elisabeth Agoritsas, Ethan Stanifer, Eric I. Corwin, and M. Lisa Manning. "A direct link between active matter and sheared granular systems." Proceedings of the National Academy of Sciences 118, no. 18 (2021): e2019909118. http://dx.doi.org/10.1073/pnas.2019909118.

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The similarity in mechanical properties of dense active matter and sheared amorphous solids has been noted in recent years without a rigorous examination of the underlying mechanism. We develop a mean-field model that predicts that their critical behavior—as measured by their avalanche statistics—should be equivalent in infinite dimensions up to a rescaling factor that depends on the correlation length of the applied field. We test these predictions in two dimensions using a numerical protocol, termed “athermal quasistatic random displacement,” and find that these mean-field predictions are su

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Li, Shengkai, Bahnisikha Dutta, Sarah Cannon, et al. "Programming active cohesive granular matter with mechanically induced phase changes." Science Advances 7, no. 17 (2021): eabe8494. http://dx.doi.org/10.1126/sciadv.abe8494.

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At the macroscale, controlling robotic swarms typically uses substantial memory, processing power, and coordination unavailable at the microscale, e.g., for colloidal robots, which could be useful for fighting disease, fabricating intelligent textiles, and designing nanocomputers. To develop principles that can leverage physical interactions and thus be used across scales, we take a two-pronged approach: a theoretical abstraction of self-organizing particle systems and an experimental robot system of active cohesive granular matter that intentionally lacks digital electronic computation and co

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3

Cheng, Ke, Peng Liu, Mingcheng Yang, and Meiying Hou. "Experimental investigation of active noise on a rotor in an active granular bath." Soft Matter 18, no. 13 (2022): 2541–48. http://dx.doi.org/10.1039/d1sm01798e.

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The spectrum of the noise experienced by a passive rotor immersed in an active granular bath is experimentally investigated, which gives a direct evidence supporting an exponentially-correlated active noise.

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4

Miao, Guoqing, Kai Huang, Yi Yun, and Rongjue Wei. "Active thermal convection in vibrofluidized granular systems." European Physical Journal B 40, no. 3 (2004): 301–4. http://dx.doi.org/10.1140/epjb/e2004-00277-7.

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Lim, Melody X., Anton Souslov, Vincenzo Vitelli, and Heinrich M. Jaeger. "Cluster formation by acoustic forces and active fluctuations in levitated granular matter." Nature Physics 15, no. 5 (2019): 460–64. http://dx.doi.org/10.1038/s41567-019-0440-9.

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6

Sánchez, R., and P. Díaz-Leyva. "Self-assembly and speed distributions of active granular particles." Physica A: Statistical Mechanics and its Applications 499 (June 2018): 11–19. http://dx.doi.org/10.1016/j.physa.2018.01.031.

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Bär, Markus, Robert Großmann, Sebastian Heidenreich, and Fernando Peruani. "Self-Propelled Rods: Insights and Perspectives for Active Matter." Annual Review of Condensed Matter Physics 11, no. 1 (2020): 441–66. http://dx.doi.org/10.1146/annurev-conmatphys-031119-050611.

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A wide range of experimental systems including gliding, swarming and swimming bacteria, in vitro motility assays, and shaken granular media are commonly described as self-propelled rods. Large ensembles of those entities display a large variety of self-organized, collective phenomena, including the formation of moving polar clusters, polar and nematic dynamic bands, mobility-induced phase separation, topological defects, and mesoscale turbulence, among others. Here, we give a brief survey of experimental observations and review the theoretical description of self-propelled rods. Our focus is o

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8

Teplitskii, Yu A., V. L. Malevich, and D. G. Belonovich. "Characteristics of active thermal insulation based on infiltrated granular bed." Journal of Engineering Physics and Thermophysics 86, no. 2 (2013): 292–99. http://dx.doi.org/10.1007/s10891-013-0833-z.

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Ramaswamy, Sriram, and R. Aditi Simha. "The mechanics of active matter: Broken-symmetry hydrodynamics of motile particles and granular layers." Solid State Communications 139, no. 11-12 (2006): 617–22. http://dx.doi.org/10.1016/j.ssc.2006.05.042.

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10

Jason Gao, Guo-Jie, Michael C. Holcomb, Jeffrey H. Thomas, and Jerzy Blawzdziewicz. "Embryo as an active granular fluid: stress-coordinated cellular constriction chains." Journal of Physics: Condensed Matter 28, no. 41 (2016): 414021. http://dx.doi.org/10.1088/0953-8984/28/41/414021.

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Arocena, J. M., J. M. van Mourik, and A. Faz Cano. "Granular soil structure indicates reclamation of degraded to productive soils: A case study in southeast Spain." Canadian Journal of Soil Science 92, no. 1 (2012): 243–51. http://dx.doi.org/10.4141/cjss2011-017.

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Arocena, J. M., van Mourik, J. M. and Faz Cano, A. 2012. Granular soil structure indicates reclamation of degraded to productive soils: A case study in southeast Spain. Can. J. Soil Sci. 92: 243–251. Accelerated conversion of degraded landscapes in mining areas to productive ecosystems requires stimulation of soil formation. The evolution in microstructure and changes to chemical properties in metal mine wastes 5 yr after amendments with pig manure, sewage sludge and marble waste is reported. Mine wastes had <1% organic carbon, <0.05% total nitrogen, pH∼2.0, electrical conductivity up to

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12

Tan, Wan Chun, Tao Wang, Yun Bo Wang, Shi Quan Sun, and Chen Xue Yu. "Experimental Study on GAC-Sand Filter for Advanced Treatment in Drinking Water." Advanced Materials Research 726-731 (August 2013): 3044–47. http://dx.doi.org/10.4028/www.scientific.net/amr.726-731.3044.

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A granular activated carbon sand dual media filter (GSF) was investigated as an advanced water treatment process of waterworks through the pilot test. The results show that the GSFs can remove organic matter in the water effectively instead of the sand filters. During the filtration,the effectiveness of CODMn elimination was effective, the average removal rate reached 48.2%. The average pH of the filtered water had dropped from 7.26 to 8.35, indicating that the alkaline environment is necessary for nitrifying bacteria to remain active. The ability of water treatment and quality could be raised

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13

Hetman, O. I., O. N. Izunova, A. V. Samelyuk, and L. R. Pokinchereda. "Highly Active Granular Nickel Powders for Multi-Batch Production of Spongy Oxide Cathodes." Powder Metallurgy and Metal Ceramics 60, no. 7-8 (2021): 396–402. http://dx.doi.org/10.1007/s11106-021-00252-y.

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14

Yang, Jiake, and Qun Qi. "Study on Meso-Structure Evolution in Granular Matters Based on the Contact Loop Recognition and Determination Technique." Materials 14, no. 21 (2021): 6542. http://dx.doi.org/10.3390/ma14216542.

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On the mesoscopic scale, granular matter is tessellated into contact loops by a contact network. The stability of granular matter is highly dependent on the evolution of contact loops, including the number and area evolutions of contact loops with different geometric shapes (which can reflect the mechanical variables in the macroscale). For the features of numerous loops with complex geometry shapes in contact network images, a contact loop recognition and determination technique was developed in this study. Then, numerical biaxial compression tests were performed by the discrete element metho

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15

Mandal, Rituparno, and Peter Sollich. "Shear-induced orientational ordering in an active glass former." Proceedings of the National Academy of Sciences 118, no. 39 (2021): e2101964118. http://dx.doi.org/10.1073/pnas.2101964118.

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Dense assemblies of self-propelled particles that can form solid-like states also known as active or living glasses are abundant around us, covering a broad range of length scales and timescales: from the cytoplasm to tissues, from bacterial biofilms to vehicular traffic jams, and from Janus colloids to animal herds. Being structurally disordered as well as strongly out of equilibrium, these systems show fascinating dynamical and mechanical properties. Using extensive molecular dynamics simulation and a number of distinct dynamical and mechanical order parameters, we differentiate three dynami

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16

Ismail, S. B., P. Gonzalez, D. Jeison, and J. B. van Lier. "Effects of high salinity wastewater on methanogenic sludge bed systems." Water Science and Technology 58, no. 10 (2008): 1963–70. http://dx.doi.org/10.2166/wst.2008.528.

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The attainable loading potentials of anaerobic sludge bed systems are strongly dependent on the growth of granular biomass with a particular wastewater. Experiments were conducted to determine the effects of high salinity wastewater on the biological and physical properties of methanogenic sludge. Sodium concentration of 5 g/L and 15 g/L were added to the influent of upflow anaerobic sludge bed (UASB) systems. After 100 days of operation, the methanogenic activity, extracellular polymeric substances (EPS), and granular strength were analyzed. The results show a high removal of organic matter b

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17

Kaleta, Jadwiga, Małgorzata Kida, Piotr Koszelnik, Dorota Papciak, Alicja Puszkarewicz, and Barbara Tchórzewska-Cieślak. "The use of activated carbons for removing organic matter from groundwater." Archives of Environmental Protection 43, no. 3 (2017): 32–41. http://dx.doi.org/10.1515/aep-2017-0031.

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AbstractThe article presents research results of the introduction of powdery activated carbon to the existing technological system of the groundwater treatment stations in a laboratory, pilot plant and technical scale. The aim of the research was to reduce the content of organic compounds found in the treated water, which create toxic organic chlorine compounds (THM) after disinfection with chlorine. Nine types of powdery active carbons were tested in laboratory scale. The top two were selected for further study. Pilot plant scale research was carried out for the filter model using CWZ-30 and

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18

Ramaswamy, Sriram, and R. Aditi Simha. "Corrigendum to “The mechanics of active matter: Broken-symmetry hydrodynamics of motile particles and granular layers” [Solid State Commun. 139 (2006) 617–622]." Solid State Communications 141, no. 8 (2007): 481. http://dx.doi.org/10.1016/j.ssc.2006.11.034.

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19

Schmierer, Eric N., and Arsalan Razani. "Self-Consistent Open-Celled Metal Foam Model for Thermal Applications." Journal of Heat Transfer 128, no. 11 (2006): 1194–203. http://dx.doi.org/10.1115/1.2352787.

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Many engineering applications require thermal cycling of granular materials. Since these materials generally have poor effective thermal conductivity various techniques have been proposed to improve bed thermal transport. These include insertion of metal foam with the granular material residing in the interstitial space. The use of metal foam introduces a parasitic thermal capacitance, disrupts packing, and reduces the amount of active material. In order to optimize the combined high porosity metal foam-granular material matrix and study local thermal nonequilibrium, multiple energy equations

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20

Li, Peng, Yuemin Zhao, Lizhang Wang, Binbin Ding, and Yunlong Hu. "New Strategy of Using Stannic Oxide as Catalyst in a Three-dimension Electrode Reactor for the Electro-oxidation of Organic Matter." Journal of New Materials for Electrochemical Systems 17, no. 4 (2014): 243–49. http://dx.doi.org/10.14447/jnmes.v17i4.398.

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An efficient organic-matter (OM) degradation strategy using synthetic electrocatalysis particles as fixed filler in a threedimension electrode reactor was developed. In our work, SnO2-granular active carbon (SnO2-GAC) was prepared by integrating GAC with nano-SnO2 via the sol-gel method, using SnCl4 as starting material and gelatin as a stabilizer. The phase composition and micromorphology of the particles were characterized by X-ray diffraction, X-ray photoelectron spectroscopy and scanning/transmission electron microscopy techniques. The results showed the incorporation of SnO2 crystallized

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21

Das, Sukhen, N. K. Mitra, and Sudip Das. "Sintered properties and sintering behavior of MgO-ZrO2 composite hydrogel prepared by coprecipitation technique." Science of Sintering 44, no. 1 (2012): 35–45. http://dx.doi.org/10.2298/sos1201035d.

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Active precursor powders of MgO-ZrO2 composite system were prepared in three different mole ratio by electrolytic interaction of inorganic salts in aqueous phase. Complete hydrolysis occurred at the critical instability point of the system at pH 9. The amorphous precursor powders exhibited very high specific surface area. The sintered properties of the composite system are dependent on mole ratio of MgO:ZrO2, sintering temperature and the rate of crystallization of constituent phases. The presence of periclase grains and cubic stabilized ZrO2 particles in the sintered body was confirmed by X-r

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22

Mincu, Mariana, Maria Iuliana Marcus, Mihaela Andreea Mitiu, and Natalia Simona Raischi. "Increasing the Efficiency of Pollutants Removal from Municipal Wastewater Using Biological Filters." Revista de Chimie 69, no. 12 (2019): 3553–56. http://dx.doi.org/10.37358/rc.18.12.6790.

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Biological filters are wastewater treatment systems that contain a granular filling material, which form an active biological film that contribute to the biooxidation of impurities from the wastewater. Recent research in the field aimed to improve the classical treatment facilities with aerobic fixed film by using inexpensive and easily accessible materials as filterable loading. Experiments have been carried out on biological filters loaded with volcanic tuff, with a diameter between 20-100 mm, supplied with municipal wastewater from primary settling. The biological filtration efficiency has

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23

Kamson, David Olayinka, Tia Cheunkarndee, Kristen Marrone, et al. "CLRM-11 ALK TYROSINE KINASE INHIBITOR THERAPY AND BRAIN METASTASES IN NON-SMALL CELL LUNG CANCER: IMPACT ON TUMOR SIZE AND DISTRIBUTION." Neuro-Oncology Advances 5, Supplement_3 (2023): iii9. http://dx.doi.org/10.1093/noajnl/vdad070.033.

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Abstract Non-small cell lung cancer (NSCLC) with anaplastic lymphoma kinase rearrangement (ALK+) is known to have a high propensity to form brain metastases (BrM), with over 50% of ALK+ lung cancer patients developing BrM despite effective ALK tyrosine kinase inhibitor (TKI) therapy with central nervous system (CNS) activity. Pharmacokinetic (PK) data from other CNS-active lung cancer TKIs have suggested that there may be differences in drug concentration between white and gray matter in the brain, which may play a role in BrM formation patterns and response. In this study, we aimed to compare

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24

Olives, Pere, Lucie Sanchez, Geoffroy Lesage, Marc Héran, Ignasi Rodriguez-Roda, and Gaetan Blandin. "Impact of Integration of FO Membranes into a Granular Biomass AnMBR for Water Reuse." Membranes 13, no. 3 (2023): 265. http://dx.doi.org/10.3390/membranes13030265.

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The granular sludge based anaerobic membrane bioreactor (G-AnMBR) has gained emphasis in the last decade by combining AnMBR advantages (high quality permeate and biogas production towards energy positive treatment) and benefits of granular biomass (boosted biological activity and reduced membrane fouling). With the aim to further reduce energy costs, produce higher quality effluent for water reuse applications and improve system efficiency, a forward osmosis (FO) system was integrated into a 17 L G-AnMBR pilot. Plate and frame microfiltration modules were step by step replaced by submerged FO

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Chernushkin, B. O., L. G. Slivinska та V. V. Vlizlo. "ПОКАЗНИКИ ПЕРОКСИДНОГО ОКИСНЕННЯ ЛІПІДІВ У КРОВІ ВІВЦЕМАТОК, ХВОРИХ НА ГЕПАТОДИСТРОФІЮ". Scientific Messenger of LNU of Veterinary Medicine and Biotechnology 18, № 2(66) (2016): 202–6. http://dx.doi.org/10.15421/nvlvet6641.

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The article deals with the results of studies on the causes and clinical manifestations of hepatodystrophy in ewes, indicators status of lipid peroxidation – TBA-active products, lipid hydroperoxides, diene conjugates.In order to establish the causes of hepatodystrophy in sheep, we have analyzed the feed rations. Sheep investigated 24 local breeds aged 3 – 4 years, weighing 45 – 56 kg. Conducted clinical study animals and blood were collected for laboratory analysis. Serum sheep determined the content of malondialdehyde (MDA-active products) using thiobarbituric acid (Stalnaja I.D., Haryshvyly

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Yamane, Kenji. "Discrete-element method application to mixing and segregation model in industrial blending system." Journal of Materials Research 19, no. 2 (2004): 623–27. http://dx.doi.org/10.1557/jmr.2004.19.2.623.

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In the pharmaceutical industries, mixing is a critical process. Pharmaceutical products consist of various components, including active ingredient and excipient. After mixing, we should get a homogeneous mixture to ensure the quality of the final products, such as tablets or capsules. For that reason, segregation is an unwanted phenomena in the mixing process. In this study, discrete-element method (DEM) was applied to investigate the mechanism of segregation in a rotating cylinder; basic equipment for powder mixing. In addition, segregation of particles in a rotating cylinder is a very intere

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Maybogin, A. M., and M. K. Nedzved. "MICROGLIOSISINWHITEMATTER OF THE BRAIN IN CHRONIC HCV-INFECTION: MORPHOLOGICAL STUDY." HIV Infection and Immunosuppressive Disorders 11, no. 3 (2019): 49–56. http://dx.doi.org/10.22328/2077-9828-2019-11-3-49-56.

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The course of a chronic HCV infection in 50% of cases is followed by affection of the brain. Its most frequent manifestations are various cognitive and psychogenic and neurological disorders. It is considered they are based on the activation of HCV infected microglial cells and related to this exitotoxic injury of neurons. According to the data of literature similar changes of microglia in white matter play an important role in a pathogenesis of HIV-associated subcortical dementia. Despite active studying the role of microglia in HCV infection, structural changes and tissue reactions of these

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Shao, Chenjia, Yongyuan Yang, Ze Liu, et al. "Characterization of landfill leachate by spectral-based surrogate measurements during a combination of different biological processes and activated carbon adsorption." Water Science and Technology 81, no. 12 (2020): 2606–16. http://dx.doi.org/10.2166/wst.2020.317.

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Abstract Surrogate measurements based on excitation-emission matrix fluorescence spectra (EEMs) and ultraviolet-visible absorption spectra (UV-vis) were used to monitor the evolution of dissolved organic matter (DOM) in landfill leachate during a combination of biological and physical-chemical treatment consisting of partial nitritation-anammox (PN-Anammox) or nitrification-denitrification (N-DN) combined with granular active carbon adsorption (GAC). PN-Anammox resulted in higher nitrogen removal (81%), whereas N-DN required addition of an external carbon source to increase nitrogen removal fr

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Ma, Yi Hua. "Dense Palladium and Perovskite Membranes and Membrane Reactors." MRS Bulletin 24, no. 3 (1999): 46–49. http://dx.doi.org/10.1557/s0883769400051915.

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The development of high-temperature processes and tighter environmental regulations requires utilization of efficient gas-separation processes that will provide high fluxes, high selectivity of separation, and the ability to operate at elevated temperatures. Dense inorganic membranes and membrane reactors are especially well suited for high-temperature reactions and separations, due in part to their thermal stability and high separation selectivity (in theory, infinite). Furthermore, membrane reactors offer an inherent advantage of combining reaction, product concentration, and separation in a

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Doederer, K., G. A. De Vera, M. P. Espino, M. L. Pype, D. Gale, and J. Keller. "MIB and geosmin removal during adsorption and biodegradation phases of GAC filtration." Water Supply 18, no. 4 (2017): 1449–55. http://dx.doi.org/10.2166/ws.2017.213.

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Abstract Biologically active carbon (BAC) filtration is a robust process for removal of many contaminants of concern. In this study, the effectiveness of BAC filtration to remove natural organic matter (NOM) and taste and odor (T&O) compounds was investigated by long-term (7 months) bench-scale filtration experiments. Filters contained fresh granular activated carbon (GAC) and a 2-year-old BAC which were fed with ozonated water from a full-scale water treatment plant spiked with 2-methylisoborneol (MIB) and geosmin. The study aims to evaluate T&O removal of GAC transitioning from its a

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Capdeville, B., and K. M. Nguyen. "Kinetics and Modelling of Aerobic and Anaerobic Film Growth." Water Science and Technology 22, no. 1-2 (1990): 147–70. http://dx.doi.org/10.2166/wst.1990.0144.

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Our fundamental studies of the kinetics of growth and substrate removal by aerobic and anaerobic biofilms have shown that the process comprises six phases : the latent, dynamic, linear, decrease, stabilization and detachment phases. During these experiments we also observed:-steady state functioning in the liquid bulk from the end of the dynamic phase. At this point a very thin pseudo-thickness of biofilm was observed (50 µm maximum).-steady state functioning relative to the observed biofilm mass, reached in the stabilization phase, the corresponding thickness being generally several hundred m

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Cheunkarndee, Tia, Paola Ganem, Kristen A. Marrone, et al. "Abstract 4483: Distinct spatial distribution patterns of ALK-inhibitor naïve versus ALK-inhibitor treated ALK-positive NSCLC brain metastases." Cancer Research 83, no. 7_Supplement (2023): 4483. http://dx.doi.org/10.1158/1538-7445.am2023-4483.

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Abstract Background: Non-small cell lung cancer (NSCLC) with anaplastic lymphoma kinase rearrangement (ALK+) has a high affinity to form brain metastases (BrM). The cumulative incidence of BrMs in ALK+ lung cancer is over 50%, despite highly effective ALK tyrosine kinase inhibitors (TKIs) with CNS activity. Pharmacokinetic (PK) data from other CNS-active lung cancer TKIs (e.g., osimertinib) have revealed major brain white vs. gray matter drug concentration differences, raising the possibility of a PK-driven effect on BrM formation and response. This study aims to compare the size and distribut

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Lee, Kyung-Dong, and Sun-Yup Shim. "Anti-Inflammatory Food in Asthma Prepared from Combination of Raphanus sativus L., Allium hookeri, Acanthopanax sessiliflorum, and Dendropanax morbiferus Extracts via Bioassay-Guided Selection." Foods 11, no. 13 (2022): 1910. http://dx.doi.org/10.3390/foods11131910.

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Asthma is a highly prevalent inflammatory disease of the respiratory airways and an increasing health risk worldwide. Hence, finding new strategies to control or attenuate this condition is necessary. This study suggests nutraceuticals that are a combination of herbal plant extracts prepared from Acanthopanax sessiliflorum (AS), Codonopsis lanceolate (CL), Dendropanax morbiferus (DM), Allium hookeri (AH), and Raphanus sativus L. (RS) that can improve immunomodulatory ability through the detoxification and diuresis of air pollutants. Herbal parts (AH whole plant, RS and CL roots, AS and DM stem

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Langford, Harry, Andy Hodson, Steve Banwart, and Carl Bøggild. "The microstructure and biogeochemistry of Arctic cryoconite granules." Annals of Glaciology 51, no. 56 (2010): 87–94. http://dx.doi.org/10.3189/172756411795932083.

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AbstractA cryoconite granule is a biologically active aggregation of microorganisms, mineral particles and organic matter found on glacier surfaces, often within shallow pools or cryoconite holes. Observations of the microstructure of a range of cryoconite granules from locations in Svalbard and Greenland reveal their structure and composition. Whereas bulk analyses show that the mineralogy and geochemistry of these granules are broadly similar, analyses of their microstructure, using optical, epifluorescence and confocal microscopy, indicate differences in the location and quantity of photosy

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Bouillot, P., P. Servais, G. Billen, and Y. Levi. "Biodegradable dissolved organic carbon removal during biological filtration on granular actived carbon." Revue des sciences de l'eau 5 (April 12, 2005): 33–49. http://dx.doi.org/10.7202/705152ar.

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In drinking water production, filtration on granular activated carton (GAC) is generally used in order to remove by adsorption the dissolved organic matter. Nevertheless, the adsorption capacity of GAC is rapidly saturated and it is so necessary to regenerate the GAC. An interesting alternate has been applied in some treatment plants. It consists to use GAC filtration without regeneration taking benefit of the activity of the microbial community which colonize the GAC particles (RITTMAN and HUCK, 1989). In fact, this biological filtration offers the advantage to specially remove the biodegrada

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Hernández, A. Iván, William C. Oxberry, John F. Crary, Suzanne S. Mirra та Todd Charlton Sacktor. "Cellular and subcellular localization of PKMζ". Philosophical Transactions of the Royal Society B: Biological Sciences 369, № 1633 (2014): 20130140. http://dx.doi.org/10.1098/rstb.2013.0140.

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In contrast to protein kinases that participate in long-term potentiation (LTP) induction and memory consolidation, the autonomously active atypical protein kinase C isoform, protein kinase Mzeta (PKMζ), functions in the core molecular mechanism of LTP maintenance and long-term memory storage. Here, using multiple complementary techniques for light and electron microscopic immunolocalization, we present the first detailed characterization of the cellular and subcellular distribution of PKMζ in rat hippocampus and neocortex. We find that PKMζ is widely expressed in forebrain with prominent immu

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Koziy, A. "Improvement of the technology of production of table grainy sterlet (Acipenser ruthenus (Linnaeus, 1758)) caviar." Ribogospodarsʹka nauka Ukraïni., no. 1(55) (March 31, 2021): 39–55. http://dx.doi.org/10.15407/fsu2021.01.039.

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Purpose. Tosubstantiate scientifically and improve the technology of producing table caviar from ovulated sterlet eggs, which ensures the preservation of natural biologically active compounds and the stability of quality parameters. To investigate table caviar for microbiological, toxicological and toxico-biological safety. To determine the prospect of using the data in the practice of caviar sturgeon breeding. Methodology. Primary materials were obtained in the conditions of «Oasis Bisan» JSC. The results obtained were processed by organoleptic, biochemical, microbiological, toxicological, to

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Braslavska, Yevheniia, Volodymyr Ponomarov, Tetiana Mitchenko, Zakhar Maletskyi, and Iryna Kosogina. "PRODUCTION TECHNOLOGY AND FILTERING PROPERTIES OF CARBON BLOCK CARTRIDGES." WATER AND WATER PURIFICATION TECHNOLOGIES. SCIENTIFIC AND TECHNICAL NEWS 33, no. 2 (2022): 32–42. http://dx.doi.org/10.20535/2218-930022022255835.

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In the present paper, the information on the influence of various factors on the carbon block cartridges production technology and their potential impact on the properties of the finished product is presented. The possibilities of increasing the sorption-filtering efficiency of carbon block cartridges are presented. The technical and exploitation characteristics are influenced by the size of the mixture components granules, the physicochemical properties of active carbon and binder polymers, their ratio in the mixture, and the addition of bactericidal additives into the composition. The study

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Lin, C., C. Xiao, and Z. Shen. "Nano pores evolution in hydroxyapatite microsphere during spark plasma sintering." Science of Sintering 43, no. 1 (2011): 39–46. http://dx.doi.org/10.2298/sos1101039l.

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Micron-spherical granules of hydroxyapatite (HAp) nanoparticles were prepared by powder granulation methods. Through subsequent sintering, porous HAp microspheres with tailored pore and grain framework structures were obtained. Detailed microstructure investigation by SEM and TEM revealed the correlation of the pore structure and the necking strength with the sintering profiles that determine the coalescence features of the nanoparticles. The partially sintered porous HAp microspheres containing more than 50% porosity consisting of pores and grains both in nano-scale are active in inducing the

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Paiva, Diogo Mendes de, Reinaldo Bertola Cantarutti, Gelton Geraldo Fernandes Guimarães, and Ivo Ribeiro da Silva. "Urea coated with oxidized charcoal reduces ammonia volatilization." Revista Brasileira de Ciência do Solo 36, no. 4 (2012): 1221–30. http://dx.doi.org/10.1590/s0100-06832012000400016.

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Urea is the most consumed nitrogen fertilizer in the world. However, its agronomic and economic efficiency is reduced by the volatilization of NH3, which can reach 78 % of the applied nitrogen. The coating of urea granules with acidic compounds obtained by charcoal oxidation has the potential to reduce the volatilization, due to the acidic character, the high buffering capacity and CEC. This work aimed to evaluate the effect of HNO3-oxidized carbon on the control of NH3 volatilization. These compounds were obtained by oxidation of Eucalyptus grandis charcoal, produced at charring temperatures

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Lopes, Jose, Fernando Pereira dos Santos, João Antonio Cyrino Zequi, and Denise Miguel Petroni. "Eficiência e Persistência de Três Produtos Comerciais à Base de Bacillus thuringiensis israelensis e Bacillus sphaericus no controle de Culicidae (Diptera) em Lagoas de Tratamento de Efluentes." EntomoBrasilis 3, no. 3 (2010): 85–88. http://dx.doi.org/10.12741/ebrasilis.v3i3.90.

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Resumo. A ação hematofágica exercida por fêmeas de algumas espécies de Culicidae sobre o homem e outros animais pode estar diretamente relacionada à transmissão de patógenos, além de provocar reações alérgicas e causar incômodo. O aparecimento de populações resistentes aos inseticidas químicos impulsiona o uso de métodos de controle alternativos, principalmente o biológico. Objetivando testar a eficiência e persistência de produtos comerciais com principio ativo a base de Bacillus thuringiensis israelensis Berliner e Bacillus sphaericus Neide foram realizados experimentos em três lagoas de tra

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Fernandez-Nieves, Alberto, and Ramon Planet. "Editorial: Active and externally driven granular matter." Frontiers in Physics 10 (December 6, 2022). http://dx.doi.org/10.3389/fphy.2022.1097453.

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Kumar, Nitin, Harsh Soni, Sriram Ramaswamy, and A. K. Sood. "Flocking at a distance in active granular matter." Nature Communications 5, no. 1 (2014). http://dx.doi.org/10.1038/ncomms5688.

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Bera, Pradip K., and A. K. Sood. "Motile dissenters disrupt the flocking of active granular matter." Physical Review E 101, no. 5 (2020). http://dx.doi.org/10.1103/physreve.101.052615.

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Li, Wenjian, Longfei Li, Qingfan Shi, Mingcheng Yang, and Ning Zheng. "Spontaneous population oscillation of confined active granular particles." Soft Matter, 2022. http://dx.doi.org/10.1039/d2sm00134a.

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Spontaneous collective oscillation may emerge from seemingly irregular active matter systems. Here, we experimentally demonstrate a spontaneous population oscillation of active granular particles confined in two chambers connected by a...

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Caprini, Lorenzo, Umberto Marini Bettolo Marconi, Andrea Puglisi, and Hartmut Löwen. "Entropons as collective excitations in active solids." Journal of Chemical Physics 159, no. 4 (2023). http://dx.doi.org/10.1063/5.0156312.

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The vibrational dynamics of solids is described by phonons constituting basic collective excitations in equilibrium crystals. Here, we consider a non-equilibrium active solid, formed by self-propelled particles, which bring the system into a non-equilibrium steady-state. We identify novel vibrational collective excitations of non-equilibrium (active) origin, which coexist with phonons and dominate over them when the system is far from equilibrium. These vibrational excitations are interpreted in the framework of non-equilibrium physics, in particular, stochastic thermodynamics. We call them “e

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Großmann, Robert, Igor S. Aranson, and Fernando Peruani. "A particle-field approach bridges phase separation and collective motion in active matter." Nature Communications 11, no. 1 (2020). http://dx.doi.org/10.1038/s41467-020-18978-5.

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Abstract Whereas self-propelled hard discs undergo motility-induced phase separation, self-propelled rods exhibit a variety of nonequilibrium phenomena, including clustering, collective motion, and spatio-temporal chaos. In this work, we present a theoretical framework representing active particles by continuum fields. This concept combines the simplicity of alignment-based models, enabling analytical studies, and realistic models that incorporate the shape of self-propelled objects explicitly. By varying particle shape from circular to ellipsoidal, we show how nonequilibrium stresses acting a

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Deckman, H. W., S. C. Fung, M. G. Matturro, and J. A. McHenry. "Structure and Reactivity of Granular Noble Metal Catalysts." MRS Proceedings 195 (1990). http://dx.doi.org/10.1557/proc-195-585.

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ABSTRACTThe deactivation / reactivation behavior of fresh granular Pt metal catalysts supported on alumina is used to obtain information about the nature of catalytically activesites. It is found that relatively fresh catalysts can in some cases be reactivated by evolving only ∼1/100 of a monolayer of molecules off the Pt metal. This implies that either less than ∼1/100 of the surface is catalytically active with a site turnover frequency of greater than ∼100 reactions/(site-sec) orthat the reactivation process does not evolve small cracked molecules from the catalyticsites and involves some o

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Nagarajan, Usharani, Grégory Beaune, Andy Y. W. Lam, David Gonzalez-Rodriguez, Françoise M. Winnik, and Françoise Brochard-Wyart. "Inert-living matter, when cells and beads play together." Communications Physics 4, no. 1 (2021). http://dx.doi.org/10.1038/s42005-020-00506-y.

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AbstractWhile both active and granular matter have been extensively studied, here we investigate what happens when we mix the two of them, in a model system combining microparticles and cell assemblies. On a substrate covered with polystyrene or silica microparticles, we notice two regimes in the spreading of a cell aggregate: light particles are pushed by the cells and form a ring, which bonds to the substrate by adhesion forces that oppose spreading, while for heavy particles, the cell monolayer spreads above the particle bed. In both cases, cell activity is transmitted to inert beads, leadi

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Trego, Anna Christine, Sarah O’Sullivan, Christopher Quince, Simon Mills, Umer Zeeshan Ijaz, and Gavin Collins. "Size Shapes the Active Microbiome of the Methanogenic Granules, Corroborating a Biofilm Life Cycle." mSystems 5, no. 5 (2020). http://dx.doi.org/10.1128/msystems.00323-20.

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ABSTRACT Methanogenic archaea are key players in cycling organic matter in nature but also in engineered waste treatment systems, where they generate methane, which can be used as a renewable energy source. In such systems in the built environment, complex methanogenic consortia are known to aggregate into highly organized, spherical granular biofilms comprising the interdependent microbial trophic groups mediating the successive stages of the anaerobic digestion (AD) process. This study separated methanogenic granules into a range of discrete size fractions, hypothesizing different biofilm gr

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