Academic literature on the topic 'Rheological'

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Journal articles on the topic "Rheological"

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Myslyuk, M. A., Yu D. Voloshyn, and N. R. Zholob. "Assesment of rheological properties of drilling fluids based on rotational viscometry data." SOCAR Proceedings, SI2 (December 30, 2023): 41–53. http://dx.doi.org/10.5510/ogp2023si200879.

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The model of interpretation of rotational viscometry data is described using a strict solution of the Couette flow equation and considering the information resulting from the experiments. Using the example of common rheological models of drilling muds, the influence of the radii ratio and rheological properties on the accuracy of their estimation was studied using the dependence of the Newtonian fluid shear rate gradient. Comparative results of the rheological properties assessment for drilling muds in industrial conditions are given. Keywords: bi-viscous fluid; Couette flow; maximum likelihood principle; rheologically stationary models.
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Myslyuk, M. A. "Determination of the rheological properties of drilling fluids from rotational viscometry data." JOURNAL OF HYDROCARBON POWER ENGINEERING 7, no. 2 (December 30, 2020): 31–45. http://dx.doi.org/10.31471/2311-1399-2020-2(14)-31-45.

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The method of rotational viscometry data processing, which is based on the maximum likelihood function principle is considered. The method takes into account the informative content of experiments and is built on the strict solution of the Couette flow equation in a viscosimeter gap. The class of models is formed from rheologically stationary (including viscosity) models. A generalization of the model for processing the experimental plan data with the aim of building equations of the state of the rheological properties of variable factors is considered. A multicriterial interpretation of estimates of the rheological model and properties of liquids has been proposed. Illustrative examples of estimating rheological properties building of drilling fluids and their equations of state are given.
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Barsukov, V. G., and T. S. Chikova. "Comparative analysis of rheological properties indicators for thermoplastic melts." Vesnik of Yanka Kupala State University of Grodno. Series 6. Engineering Science 12, no. 1 (September 9, 2022): 65–73. http://dx.doi.org/10.52275/2223-5396-2022-12-1-65-73.

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The introduction analyzes the state of the issue and substantiates the research relevance. The aim of the work is to determine and comparatively analyze the values of physically normalized indicators of rheological properties of typical representatives of thermoplastic melts. In the methodological part of the work, to ensure the comparability of the results, the physically normalized form of the Ostwald-de-Waele power empirical rheological equation proposed by McKelvey is used. The calculation scheme is based on the transition from an approximating power function with rheologically non-deterministic parameters to two dimensionless rheologically determined complexes characterizing the stress-strain state of a nonlinear-viscous medium. The first dimensionless complex is presented in the form as the ratio of the actual shear rate to a unit normalization base value, and the second is in the form as the ratio of shear stresses acting on the deformable medium to the base (reduced) value of these stresses, which are necessary to overcome viscous resistance at a unit normalization shear rate. A technique is described for determining physically normalized indicators of rheological properties using the thermoplastic melts flow curves available in the scientific and technical literature (dependence of shear stresses on shear rate) based on the processing of these graphical dependencies plotted in double logarithmic coordinates. In the main part of the work, the values of physically normalized indicators of rheological parameters (the reduced index of viscous resistance and the indicator of the rheological nonlinearity of the melt) are determined and presented in the form of tables for widely used types of filled and unfilled thermoplastic polymers. A comparative analysis of these indicators has been carried out. Conclusions are given on the work and it is noted that the results of the research can be used in engineering practice, as well as in the educational process when performing rheological calculations of the processes of processing thermoplastic polymeric materials.
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Liang, Hu Nan, Zhu Long, and Shu Hui Yang. "Effect of Organic Bentonite on Rheological Properties of Paper Coating." Advanced Materials Research 197-198 (February 2011): 383–86. http://dx.doi.org/10.4028/www.scientific.net/amr.197-198.383.

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Effect of organic bentonite on rheological behavior of paper coating was studied. Organic bentonite was prepared by treating sodium bentonite with dimethyl diallyl ammonium chloride (DADMAC) at the following conditions: DADMAC 20%, reaction time 3h, reaction temperature 80°C and pH 9. The results showed that shear stress and voscosity of coating enhance with increasing the amount of organic bentonite. In this testing, all of flow curves fitted Cross model very much, and rheologiclal properties showed the pseudoplastic fluid, characterized as obvious shear thinning .The bentonite modified with DADMAC could promote the rheological behavior of coating.
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Zhao, Si Hai, Zhe Qian Zhao, Lin Yu Jiao, Yu Wei Hu, Ji Shen Dong, and Ji Ye Gao. "Study of Nanoparticle Iron-Nitride MRF and its Rheological Characteristic." Advanced Materials Research 774-776 (September 2013): 650–53. http://dx.doi.org/10.4028/www.scientific.net/amr.774-776.650.

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The gas-liquid reaction method was used to prepare the nanoparticle iron-nitride magneto-rheological fluid (MRF), the experiment study of magnetic characteristic and rheologic characteristic of the MRF has been done. The magnetic saturation of iron-nitride MRF prepared is higher than the pure iron MRF, and the sedimentation stability of the iron-nitride MRF is very good, the yield stress of iron-nitride magneto-rheological fluid prepared reached 26KPa at 0.8 Tesla additional magnetic density.
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lijima, Shigeruko, Fujio Otsuka, and Yuji Kikuchi. "Unsei-in Inhibits Rheological Activity of Leukocytes: Mechanism of Action in Neutrophil-related Skin Diseases." American Journal of Chinese Medicine 23, no. 01 (January 1995): 81–90. http://dx.doi.org/10.1142/s0192415x95000110.

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To investigate the efficacy of Unsei-in on skin diseases such as Behçet's disease, palmoplantar pustulosis and psoriasis vulgaris, the rheological activity of leukocytes as manifested by adhesiveness, deformability and aggregability was studied in vitro using a micropore filtration method. Unsei-in inhibited the rheological activity of leukocytes at a statistical significance of p < 0.01 in normal individuals whose leukocytes had been stimulated with N-formyl-methionyl-leucyl-phenylalanine (FMLP). It did not, however, inhibit the activity of cells that had not been stimulated by FMLP. In contrast, in Behçet's disease, Unsei-in inhibited rheological activity of non-stimulated leukocytes ( p < 0.01) but did not inhibit the rheological activity of FMLP-stimulated leukocytes. In a study using Ouren-gedoku-to and Shimotsu-to, the main constituents of Unsei-in, the latter inhibited the activity of FMLP-stimulated leukocytes in normal individuals ( p < 0.02). These results indicate that Unsei-in has an inhibitory effect on rheologically-activated neutrophils, which are involved in the healing mechanisms of the above skin diseases, and it also has a satisfactory effect in the form of a mixture of Shimotsu-to and Ouren-gedoku-to.
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Arcaro, Sabrina, João Batista Rodrigues Neto, Francielly Roussenq Cesconeto, Jaime Domingos Teixeira, Fabiano Raupp-Pereira, and Antonio Pedro Novaes de Oliveira. "Processing of Silicas Formed by Slip Casting." Materials Science Forum 775-776 (January 2014): 525–28. http://dx.doi.org/10.4028/www.scientific.net/msf.775-776.525.

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In this work suspensions containing natural amorphous silica fibers (NASF), amorphous silica gel and nanometric colloidal amorphous silica were prepared and rheologically analyzed. The suspensions were prepared by varying the volume percentage of solids between 22 and 32%, ammonium polyacrylate (APA), as dispersant, from 0 to 5% and polyvinyl alcohol (PVA), as binder, between 1 and 3.5%. The mixtures were obtained in a propeller mechanical mixer and formed by slip casting. The results of rheological characterization indicated that the suspensions with 30% solids, 4% dispersant and 3% binder were those that showed a stable rheological system and suitable for processing by slip casting.
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Ewoldt, Randy H. "Predictions for the northern coast of the shear rheology map: XXLAOS." Journal of Fluid Mechanics 798 (May 31, 2016): 1–4. http://dx.doi.org/10.1017/jfm.2016.265.

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A new paradigm of rheological characterization, oscillatory simple shear with infinite forcing amplitudes, is introduced by Khair (J. Fluid Mech., vol. 791, 2016, R5). This pushes the technique of large-amplitude oscillatory shear (LAOS) to have two extremely large amplitudes (both strain-rate and strain), which we might call XXLAOS. Model-specific analytical predictions are derived for a suspension of nearly spherical rigid particles subject to Brownian rotational diffusion. The work illuminates a new regime of rheological characterization that may serve as a distinct proving ground for constitutive model selection and for probing the flow physics of rheologically complex fluids.
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Filisko, Frank E., and Adam Schubring. "THE ANOMALOUS DISPERSION AND RHEOLOGICAL RESPONSE OF ER MATERIALS." International Journal of Modern Physics B 10, no. 23n24 (October 30, 1996): 3367–73. http://dx.doi.org/10.1142/s0217979296001811.

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A large low frequency dielectric dispersion, termed anomalous because it’s source is not clear, is observed in all ER active materials. It follows a classical Arrhenius behavior and as such, characteristc frequencies can be obtained for various temperatures. However it has not been directly associated with the rheological behavior of ER materials. In this study, rheological response times were obtained for an ER material by recording the response to a step increase in field. The response times of 41 msec. obtained dielectrically and 30 msec. obtained rheologically strongly indicate that the anomalous dispersion is associated with the mechanical ER phenomenon.
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Gordeeva, I. V., T. V. Dudareva, I. A. Krasotkina, V. N. Gorbatova, V. G. Nikol'skiy, U. G. Zvereva, and A. G. Obukhov. "Bitumen Resistance to Plastic Deformation at High Temperatures." Нефтехимия 63, no. 3 (June 15, 2023): 314–28. http://dx.doi.org/10.31857/s0028242123030036.

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A number of Russian bitumen samples with the penetration range of 60 to 120×0.1 mm were rheologically investigated in the temperature range of 46–70°C to evaluate their resistance to plastic rutting using relevant oscillatory and rotational rutting parameters. Based on an assessment of correlations between structural and rheological parameters, the best correlations were observed between the Gaestel Colloidal Index (CI) and the rheological parameters R3.2 and tgδ. The study demonstrated that modified bitumen must be used for pavements with extreme (“E”) traffic loading in Russian regions where PG 52 or higher grade binders are required.
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Dissertations / Theses on the topic "Rheological"

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Zhang, Kehao. "Rheological characterization of dental waxes." [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=972299416.

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Scott, Shane. "Rheological Properties of Protein Hydrogels." Thesis, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/20565.

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Certain hydrogel forming de novo proteins that utilize different crosslinking methods are studied experimentally on a rheometer. The stress reaxation modulus of CRC, a telechelic, triblock protein, is shown to be that of a stretched exponential function with a value of β ≅ 0.5. The insertion of an integrin binding domain and changes in pH within the range 6.5–8.5 are shown not to significantly affect the resulting rheological behavior. A selective chemical crosslinker is used on CRC hydrogel systems and is shown to change the rheological behavior of the system to that of a combination of a chemically and physically crosslinked system. Chemically crosslinked hydrogels composed of W6, a wheat gluten-based protein, demonstrate a storage modulus weakly dependent on the angular frequency that is much greater than the loss modulus, with a modulus concentration dependence of c^9/4.
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Fang, Yunli. "Rheological effect in film blowing." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0019/MQ48852.pdf.

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Yeong, Shoot Klan. "Rheological properties of lubricating grease." Thesis, Imperial College London, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251581.

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Varsani, Vijay. "Rheological behaviour of metallic liquids." Thesis, Brunel University, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.436281.

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Gallat, Stephanie. "Rheological properties of reworked butters." Thesis, University of Reading, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.259761.

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Morey, Michaela. "Rheological studies of molten chocolate." Thesis, University of Birmingham, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.250282.

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Moolman, Pieter Lafras. "Rheological model for paint properties." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/1110.

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Thesis (PhD (Process Engineering))--Stellenbosch University, 2008.
The feasibility of predicting paint properties directly from the raw material formulation as well as the rheological data is investigated in this study. Although extensive work has been carried out on the prediction of paint properties in terms of the raw material data, very little research has been carried out on the prediction of paint properties in terms of the rheological data. Little is known about the relationship between fundamental rheological properties and real-world performance. The paint under investigation consists of fourteen raw materials. These raw materials interact in a very complex manner to produce certain desired paint properties. Evaluation of these interactions in terms of constitutive equations is almost impossible and the relationships between paint properties, raw materials and rheology can only be modelled in a statistical way. Linear relationships are investigated with linear parameter estimation techniques such as multiple linear regression. However, it has been found that many of these relationships are non-linear and that linear modelling techniques are no longer applicable for certain situations, e.g. at very high concentrations of specific raw materials. Non-linear techniques such as neural networks are used in these situations. The relationship between the raw materials, paint properties and rheology are evaluated using the following three models: · MODEL 1: The relationship between rheology and raw materials · MODEL 2: The relationship between paint properties and raw materials · MODEL 3: The relationship between paint properties and rheology MODEL 1 makes use of techniques such as principal component analysis and preliminary modelling to respectively reduce redundancy and to capture as much data as possible. MODELS 2 and 3 make use of linear screening techniques in order to identify relevant raw materials and paint properties. The validity of every model is checked to ensure that predictions and interpretations are unbiased and efficient. MODEL 1 revealed that emulsion, extender particles, pigment, water, organic pigment and solvent are the six most important raw materials affecting the rheology of the specific paint. The rheology curves that are predicted most accurately by means of multiple linear regression are the “Amplitude Sweep” (AS), “3-Interval-Thixotropy-Test” (3-ITT) and the “Flow Curve” (FC). Non-linear rheological behaviour is encountered at high pigment volume concentrations (PVC) and volume solids (VS), due to the strong dependency of the rheology of the paint on these properties. It has been shown that neural networks perform better than multiple linear regression in predicting the rheological behaviour of these paint samples for which the raw materials vary by more than 20% from the standard formulation. On average, neural networks improve predictability of the rheological parameters of these samples by 54%. The largest improvement in predictability is made on the rheological variable “Extra Low Frequency” value (CXLF), where multiple linear regression resulted in relative errors of 59%, while neural networks resulted in errors of only 5%. Other predictions of rheology curves where neural networks have shown a major improvement on predictability are the “Time Sweep” (TS) – 68% increase in accuracy and “Low Shear” curve (LS) – 63% increase in accuracy. The smallest increase that the neural network had on the predictability of a rheology curve, was a 33% increase in accuracy of the “Amplitude Sweep” (AS) predictions. Multiple linear regression models of MODEL 2 predict the critical paint properties of Opacity, Gloss, Krebs Viscosity and Dry Film Thickness with relative errors smaller than 10%. It has been shown that 90% of all new predictions fall within the allowable error margin set by the paint manufacturer. Paint properties that can be predicted with an expected error of between 10% and 20% are Dry and Wet Burnish, Open Time and Water Permeability. Paint properties that are predicted the most inaccurately by MLR, that results in errors larger than 20% are Dirt Pick-Up and Sagging. Non-linear techniques such as neural networks are used to predict the paint properties of these paint samples for which the raw materials vary by more than 20% from the standard formulation. The neural networks show a major improvement on the predictability of the paint properties for those paint samples that vary more than 20% from the standard formulation. On average, neural networks improve predictability of the paint properties by 47%. The largest improvement in predictability is made on the Wet Burnish20 prediction, where multiple linear regression resulted in relative errors of 66%, while neural networks resulted in errors of only 0.6%. Other paint property predictions where neural networks have shown a major improvement on predictability of 80% or more in accuracy are Gloss – 80% increase in accuracy and Dry Film Thickness – 81% increase in accuracy. The smallest increase that the neural network had on the predictability of a paint property, was a 33% increase in accuracy of the Sag predictions. MODEL 2 makes it possible for the paint manufacturer to test tolerances around certain paint properties during manufacturing. Rheology is still a very under-utilised tool for explaining certain paint properties. MODEL 3 quantified the correlation between fundamental rheological properties and real world performance of a paint. It has been shown that rheological measurements can be used accurately to predict certain critical paint properties such as Opacity, Krebs Viscosity, Dry Film Thickness and Gloss within the allowable error margin given by the paint manufacturer. Multiple linear regression models predict the paint properties of Opacity, Krebs Viscosity and Dry Film Thickness with relative errors smaller than 10%, with rheology as input to the model. A neural network of MODEL 3 was developed to predict the paint properties of those paint samples that vary more than 20% from the standard formulation, by using rheology data as input to the model. The neural networks perform better than multiple linear regression in predicting the paint properties of these paint samples. On average, neural networks that use rheology data as input, predict the paint properties 49% more accurate than equivalent multiple linear regression models. The greatest improvement in model predictability is for Water Permeability - 73% increase in accuracy and Gloss - 70% increase in accuracy....
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Howarth, Leslie George. "Rheological studies of bentonite dispersions." Thesis, University of Bristol, 1986. http://hdl.handle.net/1983/8cd3b134-1a67-40b0-a779-70559df77948.

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Kottke, Peter Arthur. "Rheological Implications of Tension in Liquids." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5015.

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This research investigates effects of tensile stresses in liquids. Areas of application include bearing lubrication and polymer processing, in which liquids may be subjected to hydrostatic tension or large shear stresses. A primary thrust of this research is the development of a criterion for liquid failure, or cavitation, based upon the general state of stress in the liquid. A variable pressure, rotating inner cylinder, Couette viscometer has been designed and used to test a hypothesized cavitation criterion. The criterion, that cavitation will occur when a principal normal stress in a liquid becomes more tensile than some critical stress, is supported by the results of experiments with the viscometer for a Newtonian liquid. Based upon experimental observation of cavitation, a model for cavitation inception from crevice stabilized gas nuclei, and gaseous, as opposed to vaporous, cavitation is hypothesized. The cavitation inception model is investigated through numerical simulation, primarily using the boundary element method. Only Newtonian liquids are modeled, and, for simulation purposes, the model is reduced to two dimensions and the limit of negligible inertia is considered. The model includes contact line dynamics. Mass transport of dissolved gas through the liquid and in or out of the gas nucleus is considered. The numerical simulations provide important information about the probable nature of cavitation nucleation sites as well as conditions for cavitation inception. The cavitation criterion predicts cavitation in simple shear, which has implications for rheological measurements. It can cause apparent shear thinning and thixotropy. Additionally, there is evidence suggesting a possible link between shear cavitation and extrusion defects such as sharkskin. A variable pressure capillary tube viscometer was designed and constructed to investigate a hypothesized relationship between shear cavitation and extrusion defects. Results indicate that despite the occasional coincidence of occurrence of cavitation and sharkskin defects, cavitation cannot explain the onset of extrusion defects. If nuclei are removed, then liquids can withstand a negative hydrostatic pressure. A falling body viscometer has been constructed and used to investigate the effect of negative pressures on viscosity. It is found that current pressure viscosity models can be accurately extrapolated to experimentally achievable negative pressures.
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Books on the topic "Rheological"

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Collyer, A. A., and D. W. Clegg, eds. Rheological Measurement. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-017-2898-0.

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Collyer, A. A., and D. W. Clegg, eds. Rheological Measurement. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-4934-1.

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A, Collyer A., and Clegg D. W, eds. Rheological measurement. London: Elsevier Applied Science, 1988.

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A, Collyer A., and Clegg D. W, eds. Rheological measurement. London: Elsevier Applied Science, 1988.

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Collyer, A. A. Rheological Measurement. Dordrecht: Springer Netherlands, 1998.

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Whorlow, R. W. Rheological techniques. 2nd ed. New York: E. Horwood, 1992.

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Whorlow, R. W. Rheological techniques. 2nd ed. NewYork: Ellis Horwood, 1991.

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Whorlow, R. W. Rheological techniques. 2nd ed. New York: Ellis Horwood, 1992.

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W, Clegg D., and Collyer A. A, eds. Rheological measurement. 2nd ed. London: Chapman & Hall, 1998.

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D, Joseph Daniel, and Renardy Michael, eds. Rheological fluid dynamics. Berlin: Springer International, 1993.

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Book chapters on the topic "Rheological"

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Gooch, Jan W. "Rheological." In Encyclopedic Dictionary of Polymers, 632. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_10023.

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Mackley, M. R. "Capillary Rheometry." In Rheological Measurement, 1–23. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-017-2898-0_1.

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Marin, Gérard. "Oscillatory Rheometry." In Rheological Measurement, 297–343. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-017-2898-0_10.

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Lodge, A. S. "Normal Stress Differences from Hole Pressure Measurements." In Rheological Measurement, 345–82. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-017-2898-0_11.

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Dealy, J. M., and A. J. Giacomin. "Sliding Plate and Sliding Cylinder Rheometers." In Rheological Measurement, 383–404. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-017-2898-0_12.

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Brownsey, G. J. "Commercial Rotational Instruments." In Rheological Measurement, 405–31. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-017-2898-0_13.

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Mackay, M. E., and D. V. Boger. "Flow Visualisation in Rheometry." In Rheological Measurement, 433–77. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-017-2898-0_14.

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Utracki, L. A. "The Rheology of Two-Phase Flows." In Rheological Measurement, 479–594. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-017-2898-0_15.

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Barthes-Biesel, D. "Mathematical Modelling of Two-Phase Flows." In Rheological Measurement, 595–634. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-017-2898-0_16.

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Han, Chang Dae. "Slit Rheometry." In Rheological Measurement, 25–48. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-017-2898-0_2.

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Conference papers on the topic "Rheological"

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Sahin, Huseyin, Faramarz Gordaninejad, Xiaoije Wang, and Alan Fuchs. "Rheological behavior of magneto-rheological grease (MRG)." In The 14th International Symposium on: Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring, edited by Yuji Matsuzaki, Mehdi Ahmadian, and Donald J. Leo. SPIE, 2007. http://dx.doi.org/10.1117/12.717714.

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Troufanov, Nikita, and Brennen Huller. "Rheological Translations." In ACADIA 2014: Design Agency. ACADIA, 2014. http://dx.doi.org/10.52842/conf.acadia.2014.255.

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Troufanov, Nikita, and Brennen Huller. "Rheological Translations." In ACADIA 2014: Design Agency. ACADIA, 2014. http://dx.doi.org/10.52842/conf.acadia.2014.255.

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Nakano, M., and K. Koyama. "Electro-Rheological Fluids, Magneto-Rheological Suspensions and their Applications." In Proceedings of the 6th International Conference. WORLD SCIENTIFIC, 1999. http://dx.doi.org/10.1142/9789814527736.

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Bullough, W. A. "Electro-Rheological Fluids, Magneto-Rheological Suspensions and Associated Technology." In Proceedings of the 5th International Conference. WORLD SCIENTIFIC, 1996. http://dx.doi.org/10.1142/9789814531160.

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Taylan, Onur, and Halil Berberoglu. "Rheological Properties of “Dry Water”." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-64114.

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This study reports the rheological properties of the novel material “dry water” which contains about 98% by weight water but resembles a dry powder. Dry water is a water-in-air inverse foam which consists of microscopic water droplets encapsulated with hydrophobic fumed-silica nanoparticles. This novel material offers a large surface to volume ratio on the order of 2 × 105 m2/m3 for the gas and water phases. Thus, it provides a convenient medium for surface area limited processes and finds applications from cosmetics to gaseous fuel storage. In this study both steady and dynamic rheological properties of dry water were measured. In particular, the elastic (G′) and viscous (G″) moduli, and the complex dynamic shear viscosity (η*) were recovered from experimental data. Results showed that both the elastic and viscous moduli decreased with increasing strain at strains larger than 4%, and both moduli are weak functions of rotational frequency. Complex dynamic shear viscosity decreased with strain and rotational frequency. When compared with the studies in literature, rheological experiments and obtained results indicated that dry water behaves as a gel rheologically under the investigated conditions.
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A. Meretei, R. Schaefer, A. Fekete, and R. Scherer. "Rheological Properties of Bread." In 2002 Chicago, IL July 28-31, 2002. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2002. http://dx.doi.org/10.13031/2013.9782.

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"Rheological Behavior of Fluids." In 3rd International Conference on Scientific and Academic Research ICSAR 2023. All Sciences Academy, 2023. http://dx.doi.org/10.59287/as-proceedings.768.

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Vasyukova, A. T., I. U. Kusova, and A. E. Alekseev. "Rheological Properties Of Suspensions." In International Scientific and Practical Conference "Biotechnology, Ecology, Nature Management". European Publisher, 2022. http://dx.doi.org/10.15405/epls.22011.32.

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Korobko, Evguenia V., and Yulia O. Korobko. "Thermophysical properties and rheological behavior of electro-rheological fluids at different temperatures." In SPIE's 7th Annual International Symposium on Smart Structures and Materials, edited by T. Tupper Hyde. SPIE, 2000. http://dx.doi.org/10.1117/12.384593.

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Reports on the topic "Rheological"

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Hackley, Vincent A., Vincent A. Hackley, and Chiara F. Ferraris. Guide to rheological nomenclature. Gaithersburg, MD: National Institute of Standards and Technology, 2001. http://dx.doi.org/10.6028/nist.sp.946.

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Ebadian, M. A. Rheological properties of defense waste slurries. Office of Scientific and Technical Information (OSTI), January 1998. http://dx.doi.org/10.2172/665914.

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Zrobok, R. Rheological properties of Syncrude mature fine tails. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1992. http://dx.doi.org/10.4095/305308.

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Li, Chuanping. Rheological Properties of Aqueous Nanometric Alumina Suspensions. Office of Scientific and Technical Information (OSTI), January 2004. http://dx.doi.org/10.2172/835308.

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MICHAEL, STONE. Rheological Modifier Testing with DWPF Process Slurries. Office of Scientific and Technical Information (OSTI), February 2004. http://dx.doi.org/10.2172/839499.

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McCarthy, D., M. K. C. Chan, and R. O. Lokken. Rheological evaluation of pretreated cladding removal waste. Office of Scientific and Technical Information (OSTI), January 1986. http://dx.doi.org/10.2172/6234235.

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Wu, Qihua, Kathryn Kremer, Stephen Gibbons, and Alan Kennedy. Determination of nanomaterial viscosity and rheology properties using a rotational rheometer. Engineer Research and Development Center (U.S.), April 2022. http://dx.doi.org/10.21079/11681/43964.

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Abstract:
Rheology studies the flow of matter and is one of the most important methods for materials characterization because flow behavior is responsive to properties such as molecular weight and molecular weight distribution. Rheological properties help practitioners understand fluid flow and how to improve manufacturing processes. Rheometers have been extensively used to determine the viscosity and rheological properties of different materials because the measurements are quick, accurate, and reliable. In this standard operating procedure, a general protocol using a rotational rheometer is developed for characterizing rheological properties of nanomaterials. Procedures and recommendations for sample preparation, instrument preparation, sample measurements, and results analysis are included. The procedure was tested on a variety of carbon-based nanomaterials.
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Koopman, D. C. Rheological Characterization of Unusual DWPF Slurry Samples (U). Office of Scientific and Technical Information (OSTI), September 2005. http://dx.doi.org/10.2172/881514.

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Lanning, D. D., P. A. Smith, G. Terrones, and D. E. Larson. Summary of rheological studies related to HWVP slurries. Office of Scientific and Technical Information (OSTI), February 1996. http://dx.doi.org/10.2172/220593.

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Fow, C. L., D. McCarthy, and G. T. Thornton. Rheological evaluation of simulated neutralized current acid waste. Office of Scientific and Technical Information (OSTI), June 1986. http://dx.doi.org/10.2172/5757368.

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