Academic literature on the topic 'Mass media Pacific Area Influence'
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Journal articles on the topic "Mass media Pacific Area Influence"
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Benar, Noshin, Mina Emami, Ozra Eftekhari, Far Nastaran Yeganeh, and Mohammadi Ali Mohammad Khan. "Factorial Analysis of Mass Media Influence on Academic Sports Development." Physical education of students 20, no. 3 (June 28, 2016): 32–38. http://dx.doi.org/10.15561/20755279.2016.0304.
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Purpose: Main objective of this research was factorial analysis of mass media influence on academic sports development. Material: Methodology of the research was descriptive- correlation. Population of the research was composed of all referees, coaches and athletes participating in students' sports Olympiad of Iran Payam e Noor Universities in year 2014. Statistical sample of research was chosen randomly and consisted of 176 persons. Data gathering tool was a researcher made questionnaire; its superficial and content validity was approved by academic professors and media experts; also the stability of research tool was reported to be at an acceptable level. SPSS 23 software was used to analyze research data and also AMOS 24 software was used to analyze structure validity. Results: Findings showed there is a significant difference between current situation and desirable situation in all research dimensions. Also, factorial analysis of all research variables showed improvement of coaches' technical performance (0.86), improvement of referees' technical performance (0.85), and promotion of academic sport managers' awareness (0.83) respectively are mostly influenced by mass media. Conclusion: It should be kept in mind that academic sports development is one of the factors of the entire country sports development. Hence, it is crucial to attend to different dimensions of student sport's aspects such as human, financial, planning and etc., especially in championship area to be able to further macro objectives of country's sports development. Considering current conditions, mass media should have a new perspective on academic sports in order to be able to attend to their responsibilities to further the excellence of country's sports.
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Jiang, Feng Jian, Xiao Guang Wu, Zhi Guo Zhang, and Chen Lin. "Influence of Porous Media Property on Stirling Engine Performance." Applied Mechanics and Materials 44-47 (December 2010): 2006–10. http://dx.doi.org/10.4028/www.scientific.net/amm.44-47.2006.
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Porous medium is playing an important role in technological advances nowadays. They exist everywhere in nature and were widely used in lots of engineering projects due to their huge internal surface area and ultrafine pore size. These properties allow them to achieve good performances in heat and mass transfer. So, the regenerator of Stirling Engine uses porous medium as the matrix to get higher heat transfer efficiency. In this study, the regenerator of a 55W Stirling engine was calculated using the 1D numerical model to find the most efficient porous media from kinds of options with different structures and different parameters.
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Krylova-Grek, Yuliya Mikhailivna. "Mass media as a factor influencing the concepts semantic field." Signo 47, no. 88 (January 3, 2022): 65–72. http://dx.doi.org/10.17058/signo.v47i88.17383.
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Abstract: The given study focuses on the media influence on the worldview representation determined by the audience-induced changes in the semantic field of a concept. The aim of our research is to examine the media’s effect on the core of the semantic field regarding the concept of conflict and single out the methods employed by a journalist to alter the semantic field of concepts and influence the audience’s worldview. Lev Vygotsky’s cultural-historical theory, Marshall McLuhan’s media theory, and Lasswell’s theoretical foundations on the potentiality of media to influence the audience’s preferences are theoretical foundations for researching in this area. I conducted a four-stage study to define the way media content affects change the concept meaning by analysing the multidimensional concept «conflict» as an example. I exploited free listing methods, which were refined to accomplish my goal, data collection, and analysis methods as diagnostic instruments and conducted the survey among 88 students of the State University of Telecommunication (Kyiv, Ukraine). The experimental studies showed that even after a short period of intense media impact, a tested subject admitted the significant change in his point of view on the current events. The obtained results give grounds for further quantitative research to scrutinize the media impact on the audience’s worldview. Keywords: mass media influence; semantic field; conflict, alter the concept’s meaning; audience’s worldview
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Arfan, Iskandar, Ayu Rizky, and Andri Dwi Hernawan. "Factors associated with dengue fever prevention practices in endemic area." International Journal of Public Health Science (IJPHS) 11, no. 4 (December 1, 2022): 1184. http://dx.doi.org/10.11591/ijphs.v11i4.21784.
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Prevention practices and the factors that influence them are essential for controlling the spread of dengue hemorrhagic fever (DHF) and effective strategic planning. This study aimed to determine the factors associated with the practice of preventing dengue fever in communities in endemic areas of Kubu Raya Regency, West Kalimantan Province, Indonesia. This study was an observational study with a cross-sectional design. The research sample was 379 households in endemic areas using a questionnaire. Collecting data was using a questionnaire with interviews. Bivariate analysis employed Chi-square test, multivariate analysis using logistic regression. Most of the respondents practiced fewer prevention; variables related to dengue fever prevention practices were income, education, knowledge about dengue prevention and health education (mass media). Regression analysis showed that the variables of education, knowledge about dengue prevention, and mass media education were related to the practice of preventing dengue fever. This study indicated that in preventing dengue fever, strategies must be developed to cultivate prevention practices and increase prevention campaigns using mass media and focus on areas with low education and knowledge in dengue prevention.
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Liang, Shaobo, Hongmei Gu, and Richard Bergman. "Environmental Life-Cycle Assessment and Life-Cycle Cost Analysis of a High-Rise Mass Timber Building: A Case Study in Pacific Northwestern United States." Sustainability 13, no. 14 (July 13, 2021): 7831. http://dx.doi.org/10.3390/su13147831.
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Global construction industry has a huge influence on world primary energy consumption, spending, and greenhouse gas (GHGs) emissions. To better understand these factors for mass timber construction, this work quantified the life cycle environmental and economic performances of a high-rise mass timber building in U.S. Pacific Northwest region through the use of life-cycle assessment (LCA) and life-cycle cost analysis (LCCA). Using the TRACI impact category method, the cradle-to-grave LCA results showed better environmental performances for the mass timber building relative to conventional concrete building, with 3153 kg CO2-eq per m2 floor area compared to 3203 CO2-eq per m2 floor area, respectively. Over 90% of GHGs emissions occur at the operational stage with a 60-year study period. The end-of-life recycling of mass timber could provide carbon offset of 364 kg CO2-eq per m2 floor that lowers the GHG emissions of the mass timber building to a total 12% lower GHGs emissions than concrete building. The LCCA results showed that mass timber building had total life cycle cost of $3976 per m2 floor area that was 9.6% higher than concrete building, driven mainly by upfront construction costs related to the mass timber material. Uncertainty analysis of mass timber product pricing provided a pathway for builders to make mass timber buildings cost competitive. The integration of LCA and LCCA on mass timber building study can contribute more information to the decision makers such as building developers and policymakers.
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Shvets, Yana Valer'evna, and Polina Mikhailovna Dorozhkova. "Mass media in the Information Security management system of Russia." Национальная безопасность / nota bene, no. 1 (January 2022): 20–27. http://dx.doi.org/10.7256/2454-0668.2022.1.26058.
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The object of the study is the official position of the authorities regarding the information security of the country and the official view of what role the mass media should play in this complex system. The authors pay special attention to recent changes in this area and the analysis of what measures have been taken by the state to regulate the issue of information security. Particular attention is focused on regulatory legal acts, which are legislative initiatives of strategic planning in the field of ensuring the national security of the Russian Federation. When working on the article, the authors emphasized the use of sociological, systemic and institutional research methods. The main conclusion of the studied problem is the awareness of the understanding that the mass media have a strong influence on public consciousness. In this case, it is important to understand who exactly uses the media as a tool of manipulation, since an adequate analysis of these processes will ensure national and information security. In particular, the author substantiates the special role of the institute of television as the main means of social control through the appropriate representation and interpretation of social reality.
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Novikov, O. O., M. S. Romanova, N. I. Leonov, and E. I. Kosinova. "Influence of various phytohormones on the growth and development of the Solnechny potato variety in vitro." BIO Web of Conferences 36 (2021): 05008. http://dx.doi.org/10.1051/bioconf/20213605008.
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In the work, the study of six different nutrient medium compositions’ influence on the growth and development of a healthy Solnechny potato variety in the growing process in laboratory conditions in vitro was carried out. The influence of different nutrient medium compositions on plant height, number of leaves/internodes, plant weight and total leaf surface area was studied. It was revealed that nutrient media with BAP addition cause a decrease in all of the above indicators. In addition, nutrient media with this growth regulator lead to the appearance of microtubers on the plants. It has been shown that the inclusion of GA and IAA growth regulators in nutrient media leads to a slight increase in the number of internodes. An increase in the total leaf surface area was noted in the above options. It should be noted that the nutrient medium options with the addition of GA and IAA led to a decrease in the mass and length of the root system of Solnechnyi variety potato plants.
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Anderson, Irzal, and Kuswanto Kuswanto. "The Influence of Political Awareness, Political Socialization, and Mass Media on Political Participation in Jambi Province." Jurnal Studi Sosial dan Politik 5, no. 2 (December 31, 2021): 203–16. http://dx.doi.org/10.19109/jssp.v5i2.8742.
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The purpose of this study was to determine the effect of political awareness, political socialization and mass media on the political participation of the people of Jambi Province in the regional head election. Political participation is a form of community involvement in exercising their political rights in general elections both at the national and regional levels. The embodiment of political rights will affect every decision-making related to the interests of the community. This study uses a quantitative approach that uses statistical techniques with PLS model analysis techniques. The study was conducted on the people of Jambi City as many as 100 people were selected based on area sampling techniques. The research findings explain that the mass media has no direct effect on political participation. Political participation is directly influenced by the variables of Political Awareness and Political Socialization. Therefore, it is suggested that the use of mass media in the post-conflict local election in Jambi Province needs to be improved, especially information related to the political rights of the community. The tendency that occurs in the community is more interested in obtaining information related to entertainment because people are still accustomed to listening culture rather than reading culture.
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Busungu, Constantine, Anne Gongwe, Daniel L. Naila, and Laura Munema. "COMPLEMENTING EXTENSION OFFICERS IN TECHNOLOGY TRANSFER AND EXTENSION SERVICES: UNDERSTANDING THE INFLUENCE OF MEDIA AS CHANGE AGENTS IN MODERN AGRICULTURE." International Journal of Research -GRANTHAALAYAH 7, no. 6 (June 30, 2019): 248–69. http://dx.doi.org/10.29121/granthaalayah.v7.i6.2019.802.
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In conventional agriculture, extension officers are regarded as change agents. They intervene to bring about change through influencing innovation, technology transfer and decision-making process in order to help improve the lives of the farmers and their families. Farmers in 21st century have opportunity of receiving the majority of information about agriculture through mass media outlets as a result technology advancement.
A case study design was employed design utilizing mixed research approach focusing on Magu district as study area. The study used both primary and secondary data. The primary data were collected using purposive sampling from a sample of 148 farmers whereas the secondary data were collected from Magu District’s agriculture, irrigation and cooperative office. The data collection tools included questionnaire, focused group discussion and semi-structured interview methods. The aim of this study was to investigate how mass media is serving both extension officers and farmers to enhance agriculture knowledge and technology adaptation in the wake of few extension officers.
We found extension officer to farmer ratio to be 1:1172 and 1:500 for crop and livestock farmer respectively. This ratio falls short from World Bank recommended standard ratio of 1:200-500 as well as below the Tanzania ministry of agriculture’s standard of two extension officers per village. The rapid development of social media platforms gives the specialty crop industry the ability to speak directly to the public, informing consumers about food production and encouraging them to become agriculture advocates.
The impact of mass media among the farmers in enhancing productivity was moderate. This was easily analyzed by examining the theme content in mass media in the country and frequency of media usage by both farmers and extension officers. Amongst various mass media radio and television channels emerged as the most used, most dominant, relevant, low-cost medium and user friendly for farmer-to-farmer-extension and to expose rural communities to new agricultural technologies and ideas. Social media is the most recent form of digital communication and on a global scale and already this study reveal farmers particularly that farmer with high level of education and high-income level using social media for agriculture.
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Backes, Clarus J., David Cheetham, and Hector Neff. "The Color of Influence: A Provenance Study of Hematite-Based Paints on Early Olmec Carved Pottery." Latin American Antiquity 23, no. 1 (March 2012): 70–92. http://dx.doi.org/10.7183/1045-6635.23.1.70.
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AbstractRecent research and debates regarding the origin and spread of Olmec iconography during the Early Formative have centered on provenance and stylistic analyses of carved and incised pottery. Studies by instrumental neutron activation analysis (INAA) have indicated that Gulf Coast-style carved-incised pots were exported extensively from the area of the first Olmec capital, San Lorenzo, to several other regions of Mesoamerica. More recently, excavations at the Pacific Coast site of Cantón Corralito have shown that carved-incised pottery and other Olmec-style artifacts dominate strata contemporary with Early Olmec, suggesting the site may represent a settlement enclave of Gulf Olmec peoples. In this study we provide additional evidence of exchange between the Gulf Olmec and the Pacific Coast region by using laser ablation time-of-flight inductively coupled plasma mass spectrometry (LA-TOF-ICP-MS) to characterize hematite-based paints on Olmec-style pottery from Cantón Corralito, and to compare these paints to raw hematite recovered from Cantón Corralito and San Lorenzo. When examined in combination with sherd provenance data, the LA-TOF-ICP-MS data demonstrate that Olmec vessels were decorated in the San Lorenzo region before being exported to the Pacific Coast, and that Gulf Coast hematite was exported to Cantón Corralito, where it was used to enhance Olmec-style symbolism on locally produced vessels.
Dissertations / Theses on the topic "Mass media Pacific Area Influence"
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Ambrocio, Priscilla Y. "The impact of interpersonal communication on the media agenda setting process : a case study of new student perceptions of Stockton, CA." Scholarly Commons, 2012. https://scholarlycommons.pacific.edu/uop_etds/829.
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Using a Second Level Agenda Setting theory, Interpersonal Communication, Attitude Accessibility and Need for Orientation framework, this exploratory study examined, using the qualitative research method of focus groups, the relationship between Interpersonal Communication and media messages about Stockton, CA. Based on the themes that emerged from the discussions, results show contextual evidence that Interpersonal Communication acts as a facilitating instrument, allowing participants to 6 develop an understanding beyond the attribute description of Stockton, CA, generated by the media. This study also discovered new technology, especially social media, amplified the influence of lnterpersonal Communication of how media messages were ultimately understood. Lastly, the study concluded the University of the Pacific's reputation compensated for the school's undesirable location. Limitations and suggestions for future research are provided.
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Gu, Xiaoting. "The influence of social media on chinese college students' social activism." Scholarly Commons, 2012. https://scholarlycommons.pacific.edu/uop_etds/839.
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Guided by Uses and Gratifications Theory, this study investigated the relationship between Chinese college students' use of social media and their social activism. Data collected from a goup-administered survey of 309 undergraduate students at a large university in eastern China was used to answer four research questions. The results indicated that Chinese college students who used social media for information seeking were likely to participate in individual social activism. Besides, students who used social media for self-status seeking and information seeking were likely to participate in collective social activism. No significant correlation between entertainment motivation and social activism were found. Neither can socializing motivation predict Chinese college students' social activism. In addition, gender had an impact on individual social activism and frequency of social media use could affect both individual and collective social activism.
Books on the topic "Mass media Pacific Area Influence"
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Media and politics in Pacific Asia. London: Routledge, 2002.
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Woods, Denise M., Krishna Sen, and Wanning Sun. Peripheral Media, Marginal Communities: Media and Politics in the Asia-Pacific. Sussex Academic Press, 2009.
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Woods, Denise M., Krishna Sen, and Wanning Sun. Peripheral Media, Marginal Communities: Media and Politics in the Asia-Pacific. Sussex Academic Press, 2009.
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McCargo, Duncan. Media and Politics in Pacific Asia. Taylor & Francis Group, 2003.
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McCargo, Duncan. Media and Politics in Pacific Asia. Taylor & Francis Group, 2003.
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McCargo, Duncan. Media and Politics in Pacific Asia. Taylor & Francis Group, 2003.
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McCargo, Duncan. Media and Politics in Pacific Asia. Taylor & Francis Group, 2003.
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McCargo, Duncan. Media and Politics in Pacific Asia. Taylor & Francis Group, 2003.
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Morrow, David Bruce. The effects of different media presentations on landscape attitudes of central Washington. 1994.
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Gender, Media and Modernity in the Asia-Pacific. Taylor & Francis Group, 2014.
Find full textBook chapters on the topic "Mass media Pacific Area Influence"
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Gürel, Pinar Altiok, Talat Firlar, and Nursen Firlar. "The Organizational Structure of Advertising Agencies and New Directions." In Handbook of Research on Effective Advertising Strategies in the Social Media Age, 90–104. IGI Global, 2015. http://dx.doi.org/10.4018/978-1-4666-8125-5.ch005.
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The acceleration of globalization caused transformations in the area of communication, as in many other areas, and innovations brought about by information technologies have diversified operation methods and management, as well as organizational understandings of business companies within the global competition environment. Evolving towards post-modern structuring, companies have gravitated to customer-oriented business management strategies, where companies see their customers and market environment from different angles while conducting their advertising activities. The mass marketing sense, which was effective for a long period of time, was gradually alienated, and particularly with the intense utilization of social media and digital environments, the understanding of personal marketing (which more quickly connects products with their target audiences) was adopted in order to influence customers, who now have a multitude of choices. This chapter focuses on introducing the new organizational structures of advertising agencies in the social media age.
Conference papers on the topic "Mass media Pacific Area Influence"
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Tong, Timothy W., Mohsen M. M. Abou-Ellail, Yuan Li, and Karam R. Beshay. "Numerical Simulation of Reacting Flows in Radiant Porous Burners." In ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems. ASMEDC, 2005. http://dx.doi.org/10.1115/ht2005-72008.
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The present paper presents, numerical computations for flow, heat transfer and chemical reactions in an axisymmetric inert porous burner. The porous media re-radiate the heat absorbed from the gaseous combustion products by convection and conduction. In the present work, the porous burner species mass fraction source terms are computed from an ‘extended’ reaction mechanism, controlled by chemical kinetics of elementary reactions. The porous burner has mingled zones of porous/nonporous reacting flow, i.e. the porosity is not uniform over the entire domain. Therefore, it has to be included inside the partial derivatives of the transport governing equations. Finite-difference equations are obtained by formal integration over control volumes surrounding each grid node. Up-wind differencing is used to insure that the influence coefficients are always positive to reflect the real effect of neighboring nodes on a typical central node. Finite-difference equations are solved, iteratively, for U, V, p’ (pressure correction), enthalpy and species mass fractions, utilizing a fine grid of (80×60) nodes. The eighty grid nodes in the axial direction are needed to resolve the detailed structure of the thin reaction zone inside the porous media. The radial grid is extended inside the annular solid wall of the porous burner, to compute the wall temperature. The porous burner uses a premixed CH4-air mixture, while its radiating characteristics are computed numerically, using a four-flux radiation model. Sixteen species are included, namely CH4, CH3, CH2, CH, CH2O, CHO, CO, CO2, O2, O, OH, H2, H, H2O, H2O, H2O2, involving 49 chemical reaction equations. It was found that 1000 iterations are sufficient for complete conversion of the computed results with errors less than 0.1%. The computed temperature profiles of the gas and the solid show that, heat is conducted from downstream to the upstream of the reaction zone. Most stable species, such as H2O, CO2, H2, keep increasing inside the reaction zone staying appreciable in the combustion products. However, unstable products, such as HO2, H2O2 and CH3, first increase in the preheating region of the reaction zone, they are then consumed fast in the post-reaction zone of the porous burner. Therefore, it appears that their important function is only to help the chemical reactions continue to their inevitable completion of the more stable combustion products.
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Yang, Z., X. F. Peng, and B. X. Wang. "Numerical Investigation on Electroosmotic Transport in Porous Media." In ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems. ASMEDC, 2005. http://dx.doi.org/10.1115/ht2005-72367.
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A numerical investigation was conducted to explore the laminar electroosmotic heat and mass transport in a single cell or pore of a regular 2-D porous structure with the typical scale of order 100μm. The influence of the ratio, f, of the dielectric constants of the fluid, εl, to that of solid matrix, εs, on the electroosmotic flow was studied. It was found that the larger f was the more electroosmotic flow was enhanced. A comparison between the electroosmotic and presser-driven flows was made under different Reynolds numbers conditions. The heat transfer in a single cell was also considered under the condition of no heat conduction along the flow direction and the results showed that the effective thermal conductivity was significantly influenced by Reynolds number.
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Yuki, Kazuhisa, Akira Matsui, Hidetoshi Hashizume, and Koichi Suzuki. "Proposal of a Micro/Mini Cooling Device Using Fins-Installed Porous Media for High Heat Flux Removal Exceeding 1000W/cm2." In ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer. ASMEDC, 2009. http://dx.doi.org/10.1115/mnhmt2009-18318.
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Heat transfer characteristics of micro-sized bronze particle-sintered porous heat sinks and copper minichannel-fins heat sinks are experimentally investigated in order to clarify the feasibility of a newly proposed micro/mini cooling device using fins-installed porous media. Regarding the porous heat sinks, fin effect toward more inside of the porous medium is promoted by sintering the porous heat sink on the heat transfer surface, which results in increasing the heat transfer performance up to 0.8MW/m2K at heat flux of 8.2MW/m2 though there still remains a large pressure loss issue. In addition, the results clarify that the heat exchanging area exists only in the vicinity of the heat transfer surface. As to the minichannel-fins heat sinks, the influence of the channel width and the fin thickness are evaluated in detail. As a result, the minichannel-fins heat sink having the narrower channel width (i.e. scale effect) and lower porosity (i.e. thicker fin thickness with larger heat capacity) achieves higher heat transfer performance up to 0.10MW/m2K at 8.3MW/m2. However, rapid increase of pressure loss, which is occasionally observed in a microchannel due to vapor bubbles choking the narrow channel, still remains as an issue under flow boiling conditions in the minichannel. Finally, heat transfer performance of the fin-installed porous heat sink is numerically predicted by the control volume method. The simulation confirms that the heat transfer coefficient at each wall superheat of 0 and 30 degrees has performance 2.5 times and 2.0 times higher than that of the normal fins, which indicates that this heat sink coupling the micro and mini channels has high potential as efficient cooling method under high heat flux conditions exceeding 10MW/m2.
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Bari, Ghazi S., Stephen P. Gent, Taylor N. Suess, and Gary A. Anderson. "Predicting Hydrodynamic and Heat Transfer Effects of Sparger Geometry and Placement Within a Column Photobioreactor Using Computational Fluid Dynamics." In ASME 2012 6th International Conference on Energy Sustainability collocated with the ASME 2012 10th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/es2012-91139.
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This project investigates the effects of sparger geometry and placement on bubble and fluid flow patterns and convective heat transfer within a column photobioreactor (PBR) using Computational Fluid Dynamics (CFD). Experimental and computational studies have been completed that focused on the hydrodynamics and heat transfer within a rectangular column photobioreactor (34.29 cm long × 15.25 cm wide × 34.29 cm tall) with a single sparger located at the center of its base (33.02 cm × 1.27 cm) running lengthwise. This study extends previous work by investigating the flow patterns and heat transfer effects due to full bottom sparger or porous sparger. The gas bubbles and the water-based media within the photobioreactor are modeled using the Lagrangian-Eulerian approach. A low Reynolds k-Epsilon turbulence model is used to predict near-wall flow patterns. A flat surface photobioreactor is used to achieve sufficient light penetration into the system. The main interaction forces between the bubbles and the media, including drag forces, added mass forces, and lift forces are considered. The overarching goal of this research is to produce biofuels and bioproducts through the improved design of column PBRs used for microalgae production. An important factor in designing photobioreactors is the appropriate selection of sparger geometry and placement. The sparger governs the bubble size distribution and gas holdup. These factors in turn influence flow pattern, effective interfacial area, rates of mass transfer, heat transfer, and mixing. It is hypothesized that increasing the sparger width will improve uniformity of bubble distribution as well as mixing. Despite its importance, optimizing the sparger geometry and placement in PBRs for microalgae production is still largely not understood. In this study, the simulation’s results are presented for various spargers, which can be helpful in designing appropriate sparger geometry and proper placement for increased microalgae production.
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Du, Kashuai, Po Hu, Shuwei Zhai, Xiaojie Yang, and Weibo Wang. "An Experimental Study of Liquid Flooding in Vertical Large Scale Rectangular Channel With the Counter-Current Flow of Air and Water Film." In 2018 26th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/icone26-82478.
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In the present study, a test facility, called WAFT [1], has been set up to study liquid flooding phenomena on a heated large flat plate with the counter-current air-water flow. The various thermal hydraulic working condition parameters, especially, temperature and velocity of water, air and oil media, could be obtained by adjust the control devices, such as, heater, valve and frequency regulator. Because of transparent organic glass slab in the test section, the dynamic behavior of water film flow in the different locations of test area can be clearly observed by virtue of high-speed video camera, such as wave pattern change, film rupture, droplet splash and dry spot occurrence. During the test, a series of tests were performed under the conditions of steel plate heat flux 25 kw/m2, the water film with mass flow rate 0.1 and 0.6 kg/s.m and the temperature 70 and 92 °C, the velocity of air entrance ranging from 6.0 to 11.50 m/s and the inlet air temperature of 45 and 60 °C, respectively. According to the acquisition data, a modified Wallis liquid flooding predicted relation was proposed considering the influence factor of temperature from large steel plates, air and water film, i.e., the effect of water film evaporation. The results indicate that the mass flow rate of water film and inlet air velocity have a great effect on the emergence of liquid flooding.
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Bari, Ghazi S., Stephen P. Gent, Taylor N. Suess, and Gary A. Anderson. "Hydrodynamic and Heat Transfer Effects of Different Sparger Spacings Within a Column Photobioreactor Using Computational Fluid Dynamics." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-87898.
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An important factor in designing photobioreactors is appropriate selection of sparger geometry and placement. The sparger governs the bubble size distribution and gas hold-up. These factors in turn influence flow pattern, effective interfacial area, rates of mass transfer, heat transfer, and mixing. This project investigates the effects of sparger geometry and placement on bubble and fluid flow patterns and convective heat transfer within a column photobioreactor (PBR) using Computational Fluid Dynamics (CFD). Experimental and computational studies have been completed that focused on the hydrodynamics and heat transfer within a rectangular column photobioreactor (34.29 cm long × 15.25 cm wide × 34.29 cm tall) with a single sparger located at the center of its base (33.02 cm × 1.27 cm) running lengthwise. Similar studies have also been completed analyzing a full width sparger on the bottom of the PBR similar to a porous membrane sparger. This study extends previous work by investigating the flow patterns and heat transfer effects due to multiple rows of spargers at different spacings running perpendicular to the length of the PBR. Comparison of hydrodynamic and heat transfer parameters are made for the different types of spargers at different volumetric flow rates. The gas bubbles and the water-based media within the photobioreactor are modeled using the Lagrangian-Eulerian approach. A low Reynolds k-Epsilon turbulence model is used to predict near-wall flow patterns. The main interaction forces between the bubbles and the media, including drag forces, added mass forces, and lift forces, are considered. The overarching goal of this research is to improve PBR designs, thus enhancing microalgae production for biofuel and bioproducts production. It is hypothesized that changing the spacing of the PBR spargers will alter the bubble flow patterns. Despite its importance, optimizing the sparger geometry and placement in PBRs for microalgae production is still largely not understood. In this study, simulation results are presented for various sparger spacings, which can be helpful in designing sparger geometry and placement for maximized microalgae production.
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Oliveros, Francisco, Emilio Hernández, and Guillermo Soto. "Application of Geotechnical Criteria for the Occurrence of Earth Flows (Avalanches) on the Right of Way of Pipeline Transportation System of Camisea in the Coast Zone of Peru." In ASME 2017 International Pipeline Geotechnical Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/ipg2017-2541.
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The Camisea’s Pipeline Transportation System (PTS) in Peru, owned by Transportadora de Gas del Perú (TgP) and operated by Compañía Operadora de Gas del Amazonas (COGA), stars in the Amazon rainforest, crosses the Andes Mountain (4850masl) and descends finally towards the coast of the Pacific. The PTS has more than 10 years of operation and it has two pipelines: one transports Natural Gas (NG) and the other Natural Gas Liquids (NGL) pipelines. The NG pipeline has a length of 864km including a Loop pipeline of 135km. The NGL pipeline has a length of 557km. Because of particular physiographic conditions of each geographic sector that cross the right-of-way (ROW), the integrity of the PTS acquires a level of significant susceptibility to the occurrence of geohazard, which are the product of natural erosive processes and mass movements. In the coast sector, one of the most representative processes of geotechnical instability is the soil or debris flow (mass movements of soils). The occurrence of this type of flow has a greater incidence in the torrential creek, which generate transport of large volumes of sediments during rainy seasons. The flow has destructive effects and therefore, it is necessary to analyze the geomorphological, geological and hydrological aspects of the main creek and rivers that crosses the ROW with the objective of maintaining the integrity of the pipelines. In Peru, the flows are associated and known as Huayco or Huaico. As an additional component, it is highlight that the Peruvian coast is located within the area of interaction between the South American Continental Plate and the Nazca Plate, where there is evidence of seismic activity with different magnitude that influence on the occurrence of geo-dynamic processes with certain periods of frequency that could change the terrane’s morphology. The current article describes technical aspects of identification, intervention, monitoring, and geotechnical control in sub-fluvial crossings with levels of potential damage to the geohazard defined as huayco in the integrity management program of PTS. This activity include 63 main sub-fluvial crosses, approximately 30% are of the seasonal flow regime, located in the coast zone; at the same time, these are tributary to main rivers of constant flow as is the case of the Pisco, Cañete and Mala rivers. In this paper, it is place a special emphasis on the fourth crossing of the Huáncano creek, because it is a place of potential impact in the occurrence of soil flows. Within the annual geotechnical maintenance of the sub-fluvial crosses, in the part of the Peruvian coast, for the operation of the PTS of TgP, bed and banks protection some works are implemented, such as: Check dams, re-channeling, levees and stone riprap (Stone armour). Likewise, a program of evaluation and technical inspection is develop: it includes the analysis of the expected levels of undermining and performance condition of the existing works, which allow defining the geotechnical intervention in a term according to the identified risk level. All in all framed within a process of permanent geotechnical monitoring of the right of way. Finally, it is highlighted that to date the application of the process described above has been continued, which has facilitated the development and continuous assessment of the risk condition by huaycos in the PTS of TgP. This program has maintained an operation with an acceptable level of risk in the areas of interest and avoiding problems and consequences of great impact to communities, the environment and the operation of the system.
Reports on the topic "Mass media Pacific Area Influence"
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Yatsymirska, Mariya. SOCIAL EXPRESSION IN MULTIMEDIA TEXTS. Ivan Franko National University of Lviv, February 2021. http://dx.doi.org/10.30970/vjo.2021.49.11072.
Full textAbstract:
The article investigates functional techniques of extralinguistic expression in multimedia texts; the effectiveness of figurative expressions as a reaction to modern events in Ukraine and their influence on the formation of public opinion is shown. Publications of journalists, broadcasts of media resonators, experts, public figures, politicians, readers are analyzed. The language of the media plays a key role in shaping the worldview of the young political elite in the first place. The essence of each statement is a focused thought that reacts to events in the world or in one’s own country. The most popular platform for mass information and social interaction is, first of all, network journalism, which is characterized by mobility and unlimited time and space. Authors have complete freedom to express their views in direct language, including their own word formation. Phonetic, lexical, phraseological and stylistic means of speech create expression of the text. A figurative word, a good aphorism or proverb, a paraphrased expression, etc. enhance the effectiveness of a multimedia text. This is especially important for headlines that simultaneously inform and influence the views of millions of readers. Given the wide range of issues raised by the Internet as a medium, research in this area is interdisciplinary. The science of information, combining language and social communication, is at the forefront of global interactions. The Internet is an effective source of knowledge and a forum for free thought. Nonlinear texts (hypertexts) – «branching texts or texts that perform actions on request», multimedia texts change the principles of information collection, storage and dissemination, involving billions of readers in the discussion of global issues. Mastering the word is not an easy task if the author of the publication is not well-read, is not deep in the topic, does not know the psychology of the audience for which he writes. Therefore, the study of media broadcasting is an important component of the professional training of future journalists. The functions of the language of the media require the authors to make the right statements and convincing arguments in the text. Journalism education is not only knowledge of imperative and dispositive norms, but also apodictic ones. In practice, this means that there are rules in media creativity that are based on logical necessity. Apodicticity is the first sign of impressive language on the platform of print or electronic media. Social expression is a combination of creative abilities and linguistic competencies that a journalist realizes in his activity. Creative self-expression is realized in a set of many important factors in the media: the choice of topic, convincing arguments, logical presentation of ideas and deep philological education. Linguistic art, in contrast to painting, music, sculpture, accumulates all visual, auditory, tactile and empathic sensations in a universal sign – the word. The choice of the word for the reproduction of sensory and semantic meanings, its competent use in the appropriate context distinguishes the journalist-intellectual from other participants in forums, round tables, analytical or entertainment programs. Expressive speech in the media is a product of the intellect (ability to think) of all those who write on socio-political or economic topics. In the same plane with him – intelligence (awareness, prudence), the first sign of which (according to Ivan Ogienko) is a good knowledge of the language. Intellectual language is an important means of organizing a journalistic text. It, on the one hand, logically conveys the author’s thoughts, and on the other – encourages the reader to reflect and comprehend what is read. The richness of language is accumulated through continuous self-education and interesting communication. Studies of social expression as an important factor influencing the formation of public consciousness should open up new facets of rational and emotional media broadcasting; to trace physical and psychological reactions to communicative mimicry in the media. Speech mimicry as one of the methods of disguise is increasingly becoming a dangerous factor in manipulating the media. Mimicry is an unprincipled adaptation to the surrounding social conditions; one of the most famous examples of an animal characterized by mimicry (change of protective color and shape) is a chameleon. In a figurative sense, chameleons are called adaptive journalists. Observations show that mimicry in politics is to some extent a kind of game that, like every game, is always conditional and artificial.