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Journal articles on the topic 'Washburn model'

Author: Grafiati

Published: 6 September 2023

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1

Chang, Sooyoung, Jaedeok Seo, Seokbin Hong, Duck-Gyu Lee, and Wonjung Kim. "Dynamics of liquid imbibition through paper with intra-fibre pores." Journal of Fluid Mechanics 845 (April 20, 2018): 36–50. http://dx.doi.org/10.1017/jfm.2018.235.

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We present a combined experimental and theoretical investigation of the dynamics of liquid imbibition through paper. The Washburn equation is widely used to describe the dynamics of capillary flow through paper, but this classical model has limited accuracy, which often makes it difficult to use in developing analytic systems such as paper-based microfluidic devices. We here report that the internal cavity of the cellulose fibres composing paper is significantly responsible for the limited accuracy of the Washburn equation. Our experiments demonstrated that liquid can be absorbed in the intern

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2

Villagrán Zaccardi, Yury, Natalia Alderete, and Nele De Belie. "Lucas-Washburn vs Richards equation for the modelling of water absorption in cementitious materials." MATEC Web of Conferences 199 (2018): 02019. http://dx.doi.org/10.1051/matecconf/201819902019.

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The Lucas-Washburn equation is still being applied by a significant number of researchers for the modelling of water absorption in cementitious materials. A modern approach considers the extended Darcy’s law leading to the Richards equation instead. Three main assumptions are implied by the application of the Lucas-Washburn equation: the flow occurs in one direction only, the material is separated into one fully wet and one fully dry region, and pores are modelled as an assembly of parallel tubes of a particular radius. Its application to analyse experimental results allows defining these thre

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3

Wang, Pan, Qingen Zhang, Muhan Wang, Bing Yin, Dongshuai Hou, and Yue Zhang. "Atomistic insights into cesium chloride solution transport through the ultra-confined calcium–silicate–hydrate channel." Physical Chemistry Chemical Physics 21, no. 22 (2019): 11892–902. http://dx.doi.org/10.1039/c8cp07676f.

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4

Cao, Bing-Yang, Min Yang, and Guo-Jie Hu. "Capillary filling dynamics of polymer melts in nanopores: experiments and rheological modelling." RSC Advances 6, no. 9 (2016): 7553–59. http://dx.doi.org/10.1039/c5ra24991k.

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The spontaneous capillarity-driven flow behaviors of PE melts through AAO nanopores suggest that the zero-shear-rate viscosity of the PE melts decreases, which can be predicted by a modified Lucas–Washburn law considering the polymer rheological model.

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5

Zhang, Xiao Dan, Jun Hao Qian, and Jun Wei Jia. "Ink Penetration Model Research Based on Ink Permeability." Applied Mechanics and Materials 731 (January 2015): 462–65. http://dx.doi.org/10.4028/www.scientific.net/amm.731.462.

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This article analyzes the mechanism of interaction between the ink and paper. The Washburn equation just based on static penetration, while in contact with the ink and paper, freedom infiltration process is a dynamic process. So it is further derived based on a model of the dynamic ink permeability of dynamic contact angle, and mathematical analyzes some of the important parameters of the dynamic model so that can strive a more accurate description of the state of penetration of ink into the paper, thereby theoretically predict the quality control of printed matter.

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6

Gorthi, Srinivas R., Sanjaya Kumar Meher, Gautam Biswas, and Pranab Kumar Mondal. "Capillary imbibition of non-Newtonian fluids in a microfluidic channel: analysis and experiments." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 476, no. 2242 (2020): 20200496. http://dx.doi.org/10.1098/rspa.2020.0496.

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We have presented an experimental analysis on the investigations of capillary filling dynamics of inelastic non-Newtonian fluids in the regime of surface tension dominated flows. We use the Ostwald–de Waele power-law model to describe the rheology of the non-Newtonian fluids. Our analysis primarily focuses on the experimental observations and revisits the theoretical understanding of the capillary dynamics from the perspective of filling kinematics at the interfacial scale. Notably, theoretical predictions of the filling length into the capillary largely endorse our experimental results. We st

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7

Qu, Zhen Cai, Guang Xue Chen, Bao Lin Tang, and Shuang Shuang Wen. "Study on Model of Dot Gain in Ink-Jet Printing." Advanced Materials Research 236-238 (May 2011): 1405–9. http://dx.doi.org/10.4028/www.scientific.net/amr.236-238.1405.

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Ink-jet printing is a non-contact printing, drops are jetted on the substrates to form images through the nozzles at a certain speed. Dot is the smallest unit in printing; the qualities of printing are seriously affected by dot gain. Ink spreading and penetration are discussed in this paper, influences on dot gain in ink-jet printing are studied, the original Young's equation and Washburn formula are theoretically amended, more scientific and rational models and formulas are obtained in the actual process of ink-jet printing, which offers reference standard and theoretical basis to improve the

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8

Peterson, Rorik A. "Assessing the role of differential frost heave in the origin of non-sorted circles." Quaternary Research 75, no. 2 (2011): 325–33. http://dx.doi.org/10.1016/j.yqres.2010.08.003.

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AbstractA. L. Washburn famously proposed and reviewed 19 hypotheses for the origin of patterned ground in periglacial environments over 50 years ago (Washburn, 1956). Of these 19 mechanisms, only a few have been analyzed starting from a fundamental description of the physics to assess their potential contribution to the initiation of patterned ground. Here, differential frost heave (DFH) is investigated as the origin of non-sorted circles in periglacial landscapes. Model results indicating that DFH can spontaneously lead to patterned ground are compared to measurements of patterned ground in t

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9

Samayoa, Didier, Liliana Álvarez Romero, Lilian Aurora Ochoa Ontiveros, Lucero Priscila Damian Adame, Ehcatl Victoria-Tobon, and Gabriel Romero Paredes. "Fractal imbibition in Koch's curve-like capillar tubes." Revista Mexicana de Física 64, no. 3 (2018): 291. http://dx.doi.org/10.31349/revmexfis.64.291.

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Fractal geometry eects in capillary imbibition process are studied.Capillary rise analysis in Koch's curve-like tubes were be carried out withiterations i = 0; 1; 2; 3; 4; 5. The behaviour was characterized in function oftime, fractal geometry and height of capillary rise. An geometrical relationshipfor fractal dimension of ow tortuosity (dr) in porous media is obtained.The analytical model of Lucas-Washburn-Cai to describe the capillary rise byspontaneus imbibition in tubes with deterministic fractal geometry is adjusted.The equilibrium height time as function of fractal dimension of ow tortu

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10

Cai, Shaobin, Li Zhang, Lixin Kang, et al. "Spontaneous Imbibition in a Fractal Network Model with Different Wettabilities." Water 13, no. 17 (2021): 2370. http://dx.doi.org/10.3390/w13172370.

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In this work, we derived a mathematical model for spontaneous imbibition in a Y-shaped branching network model. The classic Lucas–Washburn equation was used for modeling the imbibition process occurring in the Y-shape model. Then, a mathematical model for the Newtonian fluid’s imbibition was derived to reveal the relationship between dimensionless imbibition time and length ratio, radius ratio, and wetting strength. The dimensionless imbibition time in the model was adopted to compare with that of the capillary bundle model. Different length and radius ratios were considered in the adjacent tw

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11

Pirard, R., S. Blacher, F. Brouers, and J. P. Pirard. "Interpretation of mercury porosimetry applied to aerogels." Journal of Materials Research 10, no. 8 (1995): 2114–19. http://dx.doi.org/10.1557/jmr.1995.2114.

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The observation of aerogels submitted to a pressure of mercury indicates that this porous material is compacted and not intruded by the mercury. Consequently, the classical Washburn equation cannot be applied. A relation is established between the pressure P of compaction and the size L of the largest pores. The size of pores is estimated by using the nitrogen adsorption-desorption isotherms analysis and SEM measurements. A relation is found in which P is proportional to L−4 The new relation is applied to mercury porosimetry. Finally, a mechanical model is proposed that reproduces successfully

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12

Kasetsirikul, Surasak, Muhammad J. A. Shiddiky, and Nam-Trung Nguyen. "Wicking in Paper Strips under Consideration of Liquid Absorption Capacity." Chemosensors 8, no. 3 (2020): 65. http://dx.doi.org/10.3390/chemosensors8030065.

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Paper-based microfluidic devices have the potential of being a low-cost platform for diagnostic devices. Electrical circuit analogy (ECA) model has been used to model the wicking process in paper-based microfluidic devices. However, material characteristics such as absorption capacity cannot be included in the previous ECA models. This paper proposes a new model to describe the wicking process with liquid absorption in a paper strip. We observed that the fluid continues to flow in a paper strip, even after the fluid reservoir has been removed. This phenomenon is caused by the ability of the pa

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13

MacDonald, Brendan D. "Flow of liquids through paper." Journal of Fluid Mechanics 852 (August 2, 2018): 1–4. http://dx.doi.org/10.1017/jfm.2018.536.

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The flow of liquids through paper is challenging to model due to the complexity and disordered layout of the fibre matrix. The expanding use and capability of microfluidic paper-based analytical devices ($\unicode[STIX]{x1D707}$PADs) and their requirement for precision has increased the need to accurately predict the flow of liquids through paper. Many studies have developed models and revealed some of the physical mechanisms responsible for the flow behaviour, but we still lack a complete understanding, particularly in relation to how the fluid fills the various voids with a wide range of sha

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14

Bogoyavlenskiy, Vladislav A., Andrew C. Giamis, and Eric J. Cotts. "Mean-field dynamics of free surface flows through obstacle arrays in a narrow passage: amendments of the Washburn model." Fluid Dynamics Research 35, no. 1 (2004): 23–35. http://dx.doi.org/10.1016/j.fluiddyn.2004.04.001.

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15

Obryk, M. K., P. T. Doran, E. D. Waddington, and C. P. Mckay. "The influence of föhn winds on Glacial Lake Washburn and palaeotemperatures in the McMurdo Dry Valleys, Antarctica, during the Last Glacial Maximum." Antarctic Science 29, no. 5 (2017): 457–67. http://dx.doi.org/10.1017/s0954102017000062.

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AbstractLarge glacial lakes, including Glacial Lake Washburn, were present in the McMurdo Dry Valleys, Antarctica, during the Last Glacial Maximum (LGM) despite a colder and drier climate. To address the mechanism capable of generating enough meltwater to sustain these large lakes, a conceptual model was developed based on the warming potential of infrequent contemporary föhn winds. The model suggests that föhn winds were capable of generating enough meltwater to sustain large glacial lakes during the LGM by increasing degree days above freezing (DDAF) and prolonging the melt season. A present

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16

Song, Kui, Ruijie Huang, and Xiaoling Hu. "Imbibition of Newtonian Fluids in Paper-like Materials with the Infinitesimal Control Volume Method." Micromachines 12, no. 11 (2021): 1391. http://dx.doi.org/10.3390/mi12111391.

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Paper-based microfluidic devices are widely used in point-of-care testing applications. Imbibition study of paper porous media is important for fluid controlling, and then significant to the applications of paper-based microfluidic devices. Here we propose an analytical approach based on the infinitesimal control volume method to study the imbibition of Newtonian fluids in commonly used paper-like materials. Three common paper shapes (rectangular paper strips, fan-shaped and circular paper sheets) are investigated with three modeling methods (corresponding to equivalent tiny pores with circle,

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17

Huang, X. B., X. X.W., J. J. Song, C. G. Bai, R. D. Zhang, and M. J. Zhou. "Contact angle of water on iron ore fines: Measurement and analysis." Journal of Mining and Metallurgy, Section B: Metallurgy 51, no. 1 (2015): 33–40. http://dx.doi.org/10.2298/jmmb140903010h.

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The relative contact angle (?RCA) for seven iron ore fines was measured by using Washburn Osmotic Pressure method under laboratory conditions. By choosing cyclohexane as the reference that can perfectly wet iron ore particles, the relative contact angles were measured and varied from 57? to 73?. With the volume % of goethite (?G) as the variable, a new model for relative contact angle was developed. The expected relative contact angle for pure goethite is about 56?, while that for goethite free samples is about 77?. Physical properties, such as surface morphology (SMI) and pore volume (Vpore)

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18

Ghillani, Noemi, Michael Heinz, and Tatiana Gambaryan-Roisman. "Capillary rise and evaporation of a liquid in a corner between a plane and a cylinder: A model of imbibition into a nanofiber mat coating." European Physical Journal Special Topics 229, no. 10 (2020): 1799–818. http://dx.doi.org/10.1140/epjst/e2020-000011-y.

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Abstract Wetting of surfaces with porous coating is relevant for a wide variety of technical applications, such as printing technologies and heat transfer enhancement. Imbibition and evaporation of liquids on surfaces covered with porous layers are responsible for significant improvement of cooling efficiency during drop impact cooling and flow boiling on such surfaces. Up to now, no reliable model exists which is able to predict the kinetics of imbibition coupled with evaporation on surfaces with porous coatings. In this work, we consider one of possible mechanisms of imbibition on a substrat

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19

Kumar, Ashutosh, Hojat Heidari-Bafroui, Nassim Rahmani, Constantine Anagnostopoulos, and Mohammad Faghri. "Modeling of Paper-Based Bi-Material Cantilever Actuator for Microfluidic Biosensors." Biosensors 13, no. 6 (2023): 580. http://dx.doi.org/10.3390/bios13060580.

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This research explores the dynamics of a fluidically loaded Bi-Material cantilever (B-MaC), a critical component of μPADs (microfluidic paper-based analytical devices) used in point-of-care diagnostics. Constructed from Scotch Tape and Whatman Grade 41 filter paper strips, the B-MaC’s behavior under fluid imbibition is examined. A capillary fluid flow model is formulated for the B-MaC, adhering to the Lucas–Washburn (LW) equation, and supported by empirical data. This paper further investigates the stress–strain relationship to estimate the modulus of the B-MaC at various saturation levels and

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20

Mahdhi, Noureddine, Norah Salem Alsaiari, Abdelfattah Amari, and Mohamed Ali Chakhoum. "Effect of TiO2 Nanoparticles on Capillary-Driven Flow in Water Nanofilters Based on Chitosan Cellulose and Polyvinylidene Fluoride Nanocomposites: A Theoretical Study." Polymers 14, no. 14 (2022): 2908. http://dx.doi.org/10.3390/polym14142908.

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In this study, a novel concept of nanofiltration process of drinking water based on capillary-driven nanofiltration is demonstrated using a bio-based nanocomposites’ nanofilter as free power: a green and sustainable solution. Based on Lifshitz and Young–Laplace theories, we show that the chitosan (CS), cellulose acetate (CLA), and Polyvinylidene fluoride (PVDF) polymer matrixes demonstrate hydrophobic behavior, which leads to the draining of water from nanopores when negative capillary pressure is applied and consequently prevents the capillary-driven nanofiltration process. By incorporating 1

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21

FEELEY, T. C., M. A. COSCA, and C. R. LINDSAY. "Petrogenesis and Implications of Calc-Alkaline Cryptic Hybrid Magmas from Washburn Volcano, Absaroka Volcanic Province, USA." Journal of Petrology 43, no. 4 (2002): 663–703. http://dx.doi.org/10.1093/petrology/43.4.663.

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Abstract The petrogenesis of calc-alkaline magmatism in the Eocene Absaroka Volcanic Province (AVP) is investigated at Washburn volcano, a major eruptive center in the low-K western belt of the AVP. New 40Ar/39Ar age determinations indicate that magmatism at the volcano commenced as early as 55 Ma and continued until at least 52 Ma. Although mineral and whole-rock compositional data reflect near equilibrium crystallization of modal phenocrysts, petrogenetic modeling demonstrates that intermediate composition magmas are hybrids formed by mixing variably fractionated and contaminated mantle-deri

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22

Koplik, J., and T. J. Lasseter. "Two-Phase Flow in Random Network Models of Porous Media." Society of Petroleum Engineers Journal 25, no. 01 (1985): 89–100. http://dx.doi.org/10.2118/11014-pa.

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Abstract To explore how the microscopic geometry of a pore space affects the macroscopic characteristics of fluid flow in porous media, we have used approximate solutions of the porous media, we have used approximate solutions of the Navier-Stokes equations to calculate the flow of two fluids in random networks. The model pore space consists of an array of pores of variable radius connected to a random number of nearest neighbors by throats of variable length and radius. The various size and connectedness distributions may be arbitrarily assigned, as are the wetting characteristics of the two

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23

Dias, Madalena M., and Alkiviades C. Payatakes. "Network models for two-phase flow in porous media Part 2. Motion of oil ganglia." Journal of Fluid Mechanics 164 (March 1986): 337–58. http://dx.doi.org/10.1017/s0022112086002586.

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The behaviour of non-wetting ganglia undergoing immiscible displacement in a porous medium is studied with the help of a theoretical simulator. The porous medium is represented by a network of randomly sized unit cells of the constricted-tube type. The fluid of a non-wetting ganglion is in contact with the wetting fluid at menisci which are assumed to be spherical cups. The flow in every constricted unit cell occupied by a single fluid is modelled as flow in a sinusoidal tube. The flow in every unit cell that contains a meniscus and portions of both fluids is treated with a combination of a Wa

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24

Shishatsky, J. I., A. M. Barbashin, and S. A. Nickel. "Development of mathematical model of extraction from lupine with cheese serum by applying low-frequency mechanical vibrations." Proceedings of the Voronezh State University of Engineering Technologies 81, no. 1 (2019): 36–41. http://dx.doi.org/10.20914/2310-1202-2019-1-36-41.

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It is noted that the model is designed to create the largest possible pressure change in the cheese whey in the extractor, since the rate of transfer of the target components is proportional to the pressure difference at the ends of the capillaries. The mathematical description of impregnation as the main or important auxiliary operation is given in detail. The equations for the impregnated part of the capillary, the ratio of impregnation rates at different times are given. From the above dependencies, the equation Washburne regarding the time of impregnation. The formulas for calculating the

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25

Schnell, D. J., and G. Blobel. "Identification of intermediates in the pathway of protein import into chloroplasts and their localization to envelope contact sites." Journal of Cell Biology 120, no. 1 (1993): 103–15. http://dx.doi.org/10.1083/jcb.120.1.103.

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We have used a hybrid precursor protein to study the pathway of protein import into chloroplasts. This hybrid (pS/protA) consists of the precursor to the small subunit of Rubisco (pS) fused to the IgG binding domains of staphylococcal protein A. The pS/protA is efficiently imported into isolated chloroplasts and is processed to its mature form (S/protA). In addition to the mature stromal form, two intermediates in the pathway of pS/protA import were identified at early time points in the import reaction. The first intermediate represents unprocessed pS/protA bound to the outer surface of the c

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26

Li, P. C., G. L. Lehmann, J. Cascio, T. Driscoll, Y. J. Huang, and E. J. Cotts. "Underflow Process for Direct-Chip-Attachment Packaging." MRS Proceedings 515 (1998). http://dx.doi.org/10.1557/proc-515-117.

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ABSTRACTIn flip-chip packaging an underfill mixture is placed into the chip-to-substrate standoff created by the array of solder bumps, using a capillary flow process. The flow behavior is a complex function of the mixture properties, the wetting properties, and the flow geometry. This paper reports on the use of a plane channel capillary flow to characterize underfill materials. The measured flow behavior provides evidence that both the contact angle (θ) and the suspension viscosity (μapp) vary with time under the Influence of changing flow conditions. This nonlinear fluid behavior is modeled

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27

Philip, Jeffy John, Joydeb Mukherjee, Sandip Sarkar, and Sandip K. Saha. "Capillary Filling Dynamics of Electromagnetohydrodynamic Flow of Non-Newtonian Fluids." Journal of Fluids Engineering 142, no. 4 (2020). http://dx.doi.org/10.1115/1.4045210.

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Abstract In this work, we aim to develop a mathematical model for capillary filling dynamics of electromagnetohydrodynamic flow of non-Newtonian fluids. An axially applied electric field and a transverse magnetic field are considered to elucidate the electromagnetohydrodynamic transport through the microcapillary. Assuming a non-Newtonian power-law obeying fluids, we analyze the transient evolution of the electromagnetohydrodynamic capillary positions by considering the magnitude of the total force balance via finite volume-based numerical formalism. We have highlighted the various rheological

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28

Perré, Patrick, Dang Mao Nguyen, and Giana Almeida. "A macroscopic Washburn approach of liquid imbibition in wood derived from X-ray tomography observations." Scientific Reports 12, no. 1 (2022). http://dx.doi.org/10.1038/s41598-022-05508-0.

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AbstractImbibition of water and silicone oil in poplar and spruce is investigated at the anatomical level by X-ray tomography observations and at the macroscopic level by imbibition kinetics. Imbibition mechanisms depend on both liquid and species. In poplar, oil penetrates vessels with a small contact angle, consistent with the value measured on solid wood (ca. $$20^{\circ }$$ 20 ∘ ). Surprisingly, no direct penetration of water was observed in vessels. The large contact angle for water blocks the capillary rise at the scars between vessel cells. In spruce, oil and water penetrate primarily i

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Danielik, Vladimír, Milan Králik, Marta Ambrová, et al. "Two level deacidification mathematical model for the description of transport of solid alkaline particles and diffusion of ions in a treated acid paper." Cellulose, May 11, 2023. http://dx.doi.org/10.1007/s10570-023-05225-5.

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AbstractIndustrial progress in papermaking in the early nineteenth century led to the technologies that resulted in more acidic papers, which was caused mainly by the exploitation of alum (KAl(SO4)2) and rosin as sizing agents. The papers prepared by such technologies have degraded more quickly. From the 1930s various deacidification and preservation processes with basic agents have been developed. The most widespread deacidification process is with the aerosol (spray system) consisting of microscale particles MgO and perfluoroheptane (PFH) as a carrier (the so-called Bookkeeper process). The

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30

Wang, Mingcan, Weijun Shen, Tianran Ma, Zhi Zeng, and Fengchang Yang. "Mechanisms of the imbibition behavior in shales: A critical review." AIP Advances 13, no. 8 (2023). http://dx.doi.org/10.1063/5.0161989.

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Despite the success of hydraulic fracturing in yielding large production increases from shale gas reservoirs, uncertainties associated with basic transport processes require understanding in order to improve the efficiency and minimize environmental impacts. The hydraulic fracturing process brings in large volumes of water into shale reservoir formations, most of which remains unrecoverable and interferes with shale gas production. The imbibition behavior in shales is commonly observed during the hydraulic fracturing process, and the mechanism greatly influences the hydrocarbon recovery in sha

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31

Mortimer, Patrick K., and Andrew W. Woods. "Immiscible capillary flows in non-uniform channels." Journal of Fluid Mechanics 925 (August 26, 2021). http://dx.doi.org/10.1017/jfm.2021.693.

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We consider the release of preferentially wetting fluid in a laterally extensive V-shaped channel initially filled with a second fluid, presenting solutions for the initial exchange flow and the late time spreading of the wetting fluid along the narrow part of the channel. We also show that, if there is a buoyancy force acting in the cross-channel direction, the early time exchange flow depends on the Bond number, and the intermediate time slumping flow may initially be dominated by buoyancy, but at long times becomes controlled by capillarity. Where there is an along-channel component of grav

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Helbrecht, Christiane, Markus Langhans, Tobias Meckel, Markus Biesalski, and Samuel Schabel. "Analyses of the effects of fiber diameter, fiber fibrillation, and fines content on the pore structure and capillary flow using laboratory sheets of regenerated fibers." Nordic Pulp & Paper Research Journal, July 19, 2023. http://dx.doi.org/10.1515/npprj-2022-0077.

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Abstract The aim of this work is to investigate the influence of fiber fibrillation and fines on the pore structure of well-defined regenerated fiber sheets as well as the water flow through the sheet. For this purpose, sheets were produced with refined, fibrillated fibers only, with unfibrillated fibers and fines, as well as with fibrillated fibers and fines. Next, the samples were analyzed by brightfield and fluorescence microscopy, mercury porosimetry, and an ascending test. Both the fibrils and the added fines reach into the pores between the fibers or are deposited there. As a result, por

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Shiri, Yousef, and Seyed Mohammad Javad Seyed Sabour. "Analytical, Experimental, and Numerical Study of Capillary Rise Dynamics from Inertial to Viscous Flow." Physics of Fluids, September 7, 2022. http://dx.doi.org/10.1063/5.0111688.

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Fundamental understanding of capillary rise dynamics and precise evaluation of imbibition processes should be considered in many natural and industrial phenomena. The assumptions considered to solve the capillary rise motion usually neglect specific forces which limit the reliability of the derived solutions. In the present study, the dominant forces and regimes involved in the initial moments of the capillary rise imbibition process in a tube were investigated analytically, experimentally, and numerically. Analytical solutions available in the literature were discussed, and then, their validi

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34

Li, Haidong, Fuming Chen, Haitao Cheng, Jianchao Deng, Ge Wang, and Fengbo Sun. "Large-span Bamboo Fiber-based Composites, Part I: A Prediction Model based on the Lucas-Washburn Equation Describing the Resin Content of Bamboo Fiber Impregnated with Different PVAC/PF Concentrations." BioResources 9, no. 4 (2014). http://dx.doi.org/10.15376/biores.9.4.6408-6419.

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R. L. Dodge, M. L. Keeling, D. H. C. "Washburne Anticline Delta Structure: Model Based on Integration of Thematic Mapper, Seismic, and Well-Log Data: ABSTRACT." AAPG Bulletin 73 (1989). http://dx.doi.org/10.1306/703c9dbb-1707-11d7-8645000102c1865d.

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36

Van Toan, Dinh. "Development of Enterprises in Universities and Policy Implications for University Governance Reform in Vietnam." VNU Journal of Science: Economics and Business 35, no. 1 (2019). http://dx.doi.org/10.25073/2588-1108/vnueab.4201.

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 The article focuses on analyzing the content and relationship between the development of enterprises, enterprise-university models and governance in higher education institutions, thereby providing policy recommendations on innovation in university governance in Vietnam. In the article, documents from internationally published researches as well as arguments on the mentioned subjects are analyzed and synthesized. Results of surveys and analysis on the status of universities in Vietnam that are presented in the article also demonstrate a detailed picture of difficulties and issues in ent

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