1,721,011 research outputs found
Computational Fluid Dynamics Evaluation Of Liquid Food Thermal Process In A Brick Shaped Package [utilização De Fluidodinâmica Computacional Na Avaliação De Processos Térmicos De Alimentos Líquidos Em Embalagens Prismático Retangulares]
No full textFood processes must ensure safety and high-quality products for a growing demand consumer creating the need for better knowledge of its unit operations. The Computational Fluid Dynamics (CFD) has been widely used for better understanding the food thermal processes, and it is one of the safest and most frequently used methods for food preservation. However, there is no single study in the literature describing thermal process of liquid foods in a brick shaped package. The present study evaluated such process and the influence of its orientation on the process lethality. It demonstrated the potential of using CFD to evaluate thermal processes of liquid foods and the importance of rheological characterization and convection in thermal processing of liquid foods. It also showed that packaging orientation does not result in different sterilization values during thermal process of the evaluated fluids in the brick shaped package.321134141Augusto, P.E.D., Cristianini, M., Thermal history errors evaluation in heat processed foods with internal temperature registrors (2008) Brazilian Journal of Food Technology, 7, pp. 9-19. , BMCFB, (in portuguese)Augusto, P.E.D., Cristianini, M., Evaluation of geometric symmetry condition in numerical simulations of thermal process of packed liquid food by computational fluid dynamics (CFD) (2010) International Journal of Food Engineering, 6 (5). , http://dx.doi.org/10.2202/1556-3758.1695Augusto, P.E.D., Cristianini, M., Computational fluid dynamics analysis of viscosity influence on thermal in-package liquid food process (2010) International Journal of Food Engineering, 6 (6). , http://dx.doi.org/10.2202/1556-3758.2140Augusto, P.E.D., Pinheiro, T.F., Cristianini, M., Using computational fluid-dynamics (CFD) on the evaluation of beer pasteurization: Effect of can orientation (2010) Ciência E Tecnologia De Alimentos, 30 (4), pp. 980-986. , http://dx.doi.org/10.1590/S0101-20612010000400022Augusto, P.E.D., Pinheiro, T.F., Cristianini, M., Utilização de fluidodinâmica computacional (CFD) na avaliação de tratamentos térmicos de bebidas em garrafas (2010) Brazilian Journal of Food Technology, 13 (4), pp. 260-270Augusto, P.E.D., Evaluation of methodologies for mathematical modeling of packaged conductive foods heat process (2009) International Journal of Food Engineering, 5 (4). , http://dx.doi.org/10.2202/1556-3758.1458Barbosa-Cánovas, G.V., Ibarz, A., Peleg, M., Propiedades reológicas de alimentos fluidos: Revision (1993) Alimentaria, 241, pp. 39-89Brandon, H., Pelton, P., Staack, G., State-of-the-art methodology for evaluating pasteurizer heating and cooling processes (1982) MBAA Technical Quarterly, 19 (1), pp. 34-40Brandon, H., Huling, J., Staack, G., Computer simulation of pasteurizer performance (1983) MBAA Technical Quarterly, 20 (1), pp. 39-46Brandon, H., Time-dependent modeling of in-package pasteurization (1984) MBAA Technical Quarterly, 21 (4), pp. 153-159Chen, X.D., Huang, H.J., Ghani, A.G.A., Thermal sterilization of liquid foods in a sealed container - developing simple correlations to account for natural convection (2005) International Journal of Food Engineering, 1 (1). , http://dx.doi.org/10.2202/1556-3758.1006Chen, X.D., Modeling thermal processing using computational fluid dynamics (CFD) (2006) Thermal Food Processing: New Technologies and Quality Issues, , In: SUN, D. W, Boca Raton: CRC PressDatta, A.K., Teixeira, A.A., Numerical modeling of natural convection heating in canned liquid foods (1987) Transactions of the ASAE, 30 (5), pp. 1542-1551. , http://dx.doi.org/10.1111/j.1365-2621.1988.tb10206.xDatta, A.K., Teixeira, A.A., Numerically Predicted Transient Temperature and Velocity Profiles During Natural Convection Heating of Canned Liquid Foods (1988) Journal of Food Science, 53 (1), pp. 191-195Denys, S., Pieters, J.G., Dewettink, K., Combined CFD and experimental approach for determination of the surface heat transfer coefficient during thermal processing of eggs (2003) Journal of Food Science, 68 (3), pp. 943-951. , http://dx.doi.org/10.1111/j.1365-2621.2003.tb08269.xEngelman, M.S., Sani, R.L., Finite-element simulation of an in-package pasteurization process (1983) Numerical Heat Transfer, 6 (1), pp. 41-54Erdoǧdu, F., Uyar, R., Palazoǧlu, T.K., Experimental comparison of natural convection and conduction heat transfer (2010) Journal of Food Process Engineering, 33, pp. 85-100. , Supllement 1Farid, M., Ghani, A.G.A., A new computational technique for the estimation of sterilization time in canned food (2004) Chemical Engineering and Processing, 43 (4), pp. 523-531. , http://dx.doi.org/10.1016/j.cep.2003.08.007Ghani, A.G.A., Numerical simulation of natural convection heating of canned food by computational fluid dynamics (1999) Journal of Food Engineering, 41 (1), pp. 55-64. , http://dx.doi.org/10.1016/S0260-8774(99)00073-4Ghani, A.G.A., An investigation of deactivation of bacteria in a canned liquid food during sterilization using computational fluid dynamics (CFD) (1999) Journal of Food Engineering, 42 (4), pp. 207-214. , http://dx.doi.org/10.1016/S0260-8774(99)00123-5Ghani, A.G.A., Thermal sterilization of canned food in a 3-D pouch using computational fluid dynamics (2001) Journal of Food Engineering, 48 (2), pp. 147-156. , http://dx.doi.org/10.1016/S0260-8774(00)00150-3Ghani, A.G.A., Numerical simulation of biochemical changes in a viscous liquid canned food during sterilization using computational fluid dynamics (2001) Food Australia, 53 (1-2), pp. 48-53Ghani, A.G.A., Farid, M.M., Chen, X., Numerical simulation of transient temperature and velocity profiles in a horizontal can during sterilization using computational fluid dynamics (2002) Journal of Food Engineering, 51 (1), pp. 77-83. , http://dx.doi.org/10.1016/S0260-8774(01)00039-5Ghani, A.G.A., Farid, M.M., Chen, X., Theoretical and experimental investigation of the thermal inactivation of Bacillus stearothermophilus in food pouches (2002) Journal of Food Engineering, 51 (3), pp. 221-228. , http://dx.doi.org/10.1016/S0260-8774(01)00060-7Ghani, A.G.A., Farid, M.M., Chen, X.D., Theoretical and experimental investigation of the thermal destruction of vitamin C in food pouches (2002) Computers and Electronics In Agriculture, 34 (1-3), pp. 129-143. , http://dx.doi.org/10.1016/S0168-1699(01)00183-1Horn, C.S., Modeling and simulation of pasteurization and staling effects during tunnel pasteurization of bottled beer (1997) Food and Bioproducts Processing, 75 (1), pp. 23-33. , http://dx.doi.org/10.1205/096030897531333Kannan, A., Sandaka, P.C.G., Heat transfer analysis of canned food sterilization in a still retort (2008) Journal of Food Engineering, 88 (2), pp. 213-228. , http://dx.doi.org/10.1016/j.jfoodeng.2008.02.007Koribilli, N., Aravamudan, K., Varadhan, M.U.S.V.A., Quantifying enhancement in heat transfer due to natural convection during canned food thermal sterilization in a still retort (2009) Food Bioprocess Technology, , in pressKumar, A., Bhattacharya, M., Blaylock, J., Numerical simulation of natural convection heating of canned thick viscous liquid food products (1990) Journal of Food Science, 55 (5), pp. 1403-1411. , http://dx.doi.org/10.1111/j.1365-2621.1990.tb03946.xKumar, A., Bhattacharya, M., Transient temperature and velocity profiles in a canned non-Newtonian liquid food during sterilization in a still-cook retort (1991) International Journal of Heat and Mass Transfer, 34 (4-5), pp. 1083-1096Lide, D.R., Frederikse, H.P.R., (1996) CRC Handbook of Chemistry and Physics, , http://dx.doi.org/10.1016/0017-9310(91)90018-A, 76. ed. Boca Raton: CRC PressNorton, T., Sun, D.W., Computational fluid dynamics (CFD) - an effective and efficient design and analysis tool for the food industry: A review (2006) Trends In Food Science and Technology, 17 (11), pp. 600-620. , http://dx.doi.org/10.1016/j.tifs.2006.05.004, PMid:21299575Santana, F.F., Augusto, P.E.D., Cristianini, M., Determination of the convective heat transfer Coefficient (h) in the sterilization of retortable pouches (2011) International Journal of Food Engineering, 7 (1). , http://dx.doi.org/10.2202/1556-3758.2157Scott, G., Richardson, P., The application of computational fluid dynamics on food industry (1997) Trends In Food Science and Technology, 8 (4), pp. 119-124. , PMid:21299575http://dx.doi.org/10.1016/S0924-2244(97)01028-5Sengers, J.V., Watson, J.T.R., Improved international formulations for the viscosity and thermal conductivity of water substance (1986) Journal of Physical and Chemical Reference Data, 15 (4), pp. 1291-1314. , http://dx.doi.org/10.1063/1.555763Tetra Recart: The 21st Century Alternative For Canned Food, , http://www.tetrapak.com/products_and_services/packages/tetra_recart/pages/default.aspx, Tetra Pak Acesso em: 14 abr. 2010Varma, M.N., Kannan, A., Enhanced food sterilization through inclination of the container walls and geometry modifications (2005) International Journal of Heat and Mass Transfer, 48 (18), pp. 3753-3762. , http://dx.doi.org/10.1016/j.ijheatmasstransfer.2005.03.024Varma, M.N., Kannan, A., CFD studies on natural convective heating of canned food in conical and cylindrical containers (2006) Journal of Food Engineering, 77 (4), pp. 1023-1024. , http://dx.doi.org/10.1016/j.jfoodeng.2005.07.035Xia, B., Sun, D.W., Applications of computational fluid dynamics (CFD) in the food industry: A review (2002) Computers and Electronics In Agriculture, 34 (1-3), pp. 5-24. , http://dx.doi.org/10.1016/ S0168-1699(01)00177-
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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