scholarly journals Archimedes’ principle with surface tension effects in undergraduate fluid mechanics

2021 ◽  
pp. 030641902110554
Author(s):  
David Naylor ◽  
Scott S.H. Tsai
Keyword(s):  
Surface Tension ◽  
Fluid Mechanics ◽  
Buoyancy Force ◽  
Engineering Students ◽  
Bond Number ◽  
Undergraduate Level ◽  
Wide Range ◽  
Floating Object ◽  
Floating Objects

The general physics of how objects float is only partly covered in most undergraduate fluid mechanics courses. Although Archimedes’ principle is a standard topic in fluid statics, the role of surface tension in floating is rarely discussed in detail. For example, very few undergraduate textbooks, if any, mention that the total buoyancy force on a floating object includes the weight of the fluid displaced by the meniscus. This leaves engineering students without an understanding of a wide range of phenomena that occur at a low Bond number (the ratio of buoyancy to interfacial tension forces), such as how heavier-than-water objects can float at a gas-liquid interface. This article makes a case for teaching a more unified version of Archimedes’ principle, which combines the effects of surface tension and hydrostatic pressure in calculating the total buoyancy on floating objects. Sample problems at the undergraduate level and two classroom demonstrations are described that reinforce the basic science concepts.

Introduction of Comprehensive Learning-Type Class: An Example—Fluid Mechanics Class

2011 ◽  
Author(s):  
Yasuhiro Sugimoto ◽  
Keiichi Sato
Keyword(s):  
Active Learning ◽  
Education Reform ◽  
Fluid Mechanics ◽  
Engineering Students ◽  
Initiative Process ◽  
Institute Of Technology

Kanazawa Institute of Technology (KIT) started an education reform for new century from 1995. After that, around 2007, based on “Comprehensive Learning Initiative Process” (CLIP), “Comprehensive Active Learning-type Education” (CAL-E) has been introduced. The CAL-E aims at training engineering students’ comprehensive abilities to nurture them becoming competent engineers for society. There are several class formats within CAL-E program, they are “presentation,” “discussion on a topic” and “practice and seminar.” Depending on the objective and role of subjects, the best type of CAL-E class format is conducted accordingly. In this paper, we use Fluid Mechanics classes as an example to demonstrate the effectiveness of CAL-E-oriented classes and examine its effect on students through a questionnaire.

scholarly journals Procepts and proceptual solutions in undergraduate mathematics 

Pythagoras ◽  
2010 ◽  
Vol 0 (72) ◽  
Author(s):  
Inderasan Naidoo ◽  
Belinda Huntley
Keyword(s):  
Teaching And Learning ◽  
Engineering Students ◽  
Applied Mathematics ◽  
First Year ◽  
Undergraduate Mathematics ◽  
Undergraduate Level ◽  
Mathematical Problems ◽  
Mathematics Teaching And Learning ◽  
Traditional Manner

This paper explores and promotes the notion of ‘procept’ in an undergraduate mathematics course in Linear Algebra for first year pure and engineering students. On the basis of students’ preference for procedural to conceptual solutions to mathematical problems, this paper augments the role of certain concepts in pure and applied mathematics, particularly in the problem‐solving approaches at the undergraduate level by providing novel solutions to problems solved in the usual traditional manner. The development of the concept of ‘procept’ and its applicability to mathematics teaching and learning is important to mathematics education research and tertiary pure and applied mathematics didactics in South Africa, welcoming the amalgamation of the theories developed at pre‐tertiary level mathematics with theorems and proof at the undergraduate level.

scholarly journals Nurturing Entrepreneurship Skills, Creativity and Communication Skills: An Exploratory Study on Omani Arab EFL Learners

2021 ◽  
Author(s):  
Samia Naqvi
Keyword(s):  
Student Perceptions ◽  
Communication Skills ◽  
Exploratory Study ◽  
Domain Knowledge ◽  
Engineering Students ◽  
Undergraduate Level ◽  
Communication Course ◽  
Entrepreneurial Skills ◽  
Assignment Model

To prepare students to face the world of work, universities should ensure that engineers graduating from their campuses demonstrate entrepreneurial skills and the ability to understand market forces alongside domain knowledge. This exploratory study focused on the design, application, and evaluation of a research-based coursework assignment in a business communication course offered to undergraduate level engineering students at a university college in Oman. The assignment aimed at developing students’ entrepreneurship skills, basic business concepts, creativity, critical thinking, communication skills, and research skills. Student perceptions on the role of assignment in developing the above-mentioned skills and in influencing their affective domain were gathered using a survey questionnaire carrying closed and open-ended questions. The data were analyzed using SPSS and frequency tables were generated. The results of the survey revealed that the students enjoyed working on the assignment and showed strong agreement for most of the items on the role of assignment in developing their skills and knowledge. The assignment model used in this study can support teachers in designing assessments that target the development of entrepreneurial skills alongside other meta-skills and can help solve the problem of unemployment in due course.

scholarly journals Nurturing Entrepreneurship Skills, Creativity and Communication Skills: An Exploratory Study on Omani Arab EFL Learners

2021 ◽  
pp. 150-168
Author(s):  
Samia Naqvi
Keyword(s):  
Student Perceptions ◽  
Communication Skills ◽  
Exploratory Study ◽  
Domain Knowledge ◽  
Engineering Students ◽  
Undergraduate Level ◽  
Communication Course ◽  
Entrepreneurial Skills ◽  
Assignment Model

To prepare students to face the world of work, universities should ensure that engineers graduating from their campuses demonstrate entrepreneurial skills and the ability to understand market forces alongside domain knowledge. This exploratory study focused on the design, application, and evaluation of a research-based coursework assignment in a business communication course offered to undergraduate level engineering students at a university college in Oman. The assignment aimed at developing students’ entrepreneurship skills, basic business concepts, creativity, critical thinking, communication skills, and research skills. Student perceptions on the role of assignment in developing the above-mentioned skills and in influencing their affective domain were gathered using a survey questionnaire carrying closed and open-ended questions. The data were analyzed using SPSS and frequency tables were generated. The results of the survey revealed that the students enjoyed working on the assignment and showed strong agreement for most of the items on the role of assignment in developing their skills and knowledge. The assignment model used in this study can support teachers in designing assessments that target the development of entrepreneurial skills alongside other meta-skills and can help solve the problem of unemployment in due course.

Hydrostatic force exerted on a submerged surface

2018 ◽  
Author(s):  
Marcel Escudier
Keyword(s):  
Hydrostatic Pressure ◽  
Buoyancy Force ◽  
Vertical Plane ◽  
Vertical Component ◽  
Horizontal Component ◽  
Curved Surface ◽  
Hydrostatic Force ◽  
Floating Object ◽  
Floating Objects ◽  
Metacentric Height

In this chapter it is shown how to calculate the force which arises due to the hydrostatic pressure distributed over a submerged surface or object. The vertical component of force is shown to be equal in magnitude to the weight of fluid which would occupy the volume directly above the surface and to act vertically downwards through the centroid of this volume. For a curved surface, the magnitude of the horizontal component of the hydrostatic force is shown to equal the hydrostatic force on the projection of the surface onto a vertical plane. This force is equal to the product of the area of the surface and the pressure at its centroid. The buoyancy force exerted on a submerged or floating object is shown to equal the weight of the fluid displaced by the object (Archimedes’ principle) and to act vertically upwards through the centroid of the displaced fluid. Stability of floating objects is discussed and the concept of metacentric height introduced.

The Problem of Identifying and Modeling the Relationship between Monetary Factor and Inflation in the Russian Economy

2008 ◽  
pp. 61-76
Author(s):  
A. Porshakov ◽  
A. Ponomarenko
Keyword(s):  
Money Supply ◽  
Money Demand ◽  
Russian Economy ◽  
Long Run ◽  
Complex Approach ◽  
Wide Range ◽  
Long Time ◽  
The Relationship ◽  
Supply Side Factors

The role of monetary factor in generating inflationary processes in Russia has stimulated various debates in social and scientific circles for a relatively long time. The authors show that identification of the specificity of relationship between money and inflation requires a complex approach based on statistical modeling and involving a wide range of indicators relevant for the price changes in the economy. As a result a model of inflation for Russia implying the decomposition of inflation dynamics into demand-side and supply-side factors is suggested. The main conclusion drawn is that during the recent years the volume of inflationary pressures in the Russian economy has been determined by the deviation of money supply from money demand, rather than by money supply alone. At the same time, monetary factor has a long-run spread over time impact on inflation.

Introduction: Emotion, History and the Arts

2018 ◽  
Vol 7 (2) ◽  
pp. 117-128 ◽  
Author(s):  
Erin Sullivan ◽  
Marie Louise Herzfeld-Schild
Keyword(s):  
Historical Change ◽  
Carson Mccullers ◽  
Emotional Life ◽  
Review Section ◽  
The Arts ◽  
Wide Range ◽  
War Correspondents ◽  
History Of ◽  
Johan Huizinga

This introduction surveys the rise of the history of emotions as a field and the role of the arts in such developments. Reflecting on the foundational role of the arts in the early emotion-oriented histories of Johan Huizinga and Jacob Burkhardt, as well as the concerns about methodological impressionism that have sometimes arisen in response to such studies, the introduction considers how intensive engagements with the arts can open up new insights into past emotions while still being historically and theoretically rigorous. Drawing on a wide range of emotionally charged art works from different times and places—including the novels of Carson McCullers and Harriet Beecher-Stowe, the private poetry of neo-Confucian Chinese civil servants, the photojournalism of twentieth-century war correspondents, and music from Igor Stravinsky to the Beatles—the introduction proposes five ways in which art in all its forms contributes to emotional life and consequently to emotional histories: first, by incubating deep emotional experiences that contribute to formations of identity; second, by acting as a place for the expression of private or deviant emotions; third, by functioning as a barometer of wider cultural and attitudinal change; fourth, by serving as an engine of momentous historical change; and fifth, by working as a tool for emotional connection across communities, both within specific time periods but also across them. The introduction finishes by outlining how the special issue's five articles and review section address each of these categories, while also illustrating new methodological possibilities for the field.

Short Films from a Small Nation

2018 ◽  
Author(s):  
C. Claire Thomson
Keyword(s):  
Public Information ◽  
Industrial Process ◽  
Actor Network Theory ◽  
Documentary Films ◽  
Wide Range ◽  
Short Films ◽  
Post War ◽  
The 1960S ◽  
Art And Architecture

The first book-length study in English of a national corpus of state-sponsored informational film, this book traces how Danish shorts on topics including social welfare, industry, art and architecture were commissioned, funded, produced and reviewed from the inter-war period to the 1960s. For three decades, state-sponsored short filmmaking educated Danish citizens, promoted Denmark to the world, and shaped the careers of renowned directors like Carl Th. Dreyer. Examining the life cycle of a representative selection of films, and discussing their preservation and mediation in the digital age, this book presents a detailed case study of how informational cinema is shaped by, and indeed shapes, its cultural, political and technological contexts.The book combines close textual analysis of a broad range of films with detailed accounts of their commissioning, production, distribution and reception in Denmark and abroad, drawing on Actor-Network Theory to emphasise the role of a wide range of entities in these processes. It considers a broad range of genres and sub-genres, including industrial process films, public information films, art films, the city symphony, the essay film, and many more. It also maps international networks of informational and documentary films in the post-war period, and explores the role of informational film in Danish cultural and political history.

Quantitative and Qualitative Methods of Studying the Processes of Socialization of a Modern Teenager

2020 ◽  
pp. 102-109
Author(s):  
Svetlana Alekseevna Raschetina ◽  
Keyword(s):  
Research Methods ◽  
Interpersonal Relations ◽  
Internet Communication ◽  
Socialization Process ◽  
Wide Range ◽  
The Family ◽  
Modern Family ◽  
Making Friends ◽  
Main Support

Relevance and problem statement. Modern unstable society is characterized by narrowing the boundaries of controlled socialization and expanding the boundaries of spontaneous socialization of a teenager based on his immersion in the question arises about the importance of the family in the process of socialization of a teenager in the conditions of expanding the space of socialization. There is a need to study the role of the family in this process, to search, develop and test research methods that allow us to reveal the phenomenon of socialization from the side of its value characteristics. The purpose and methodology of the study: to identify the possibilities of a systematic and anthropological methodology for studying the role of the family in the process of socialization of adolescents in modern conditions, testing research methods: photo research on the topic “Ego – I” (author of the German sociologist H. Abels), profile update reflexive processes (by S. A. Raschetina). Materials and results of the study. The study showed that for all the problems that exist in the family of the perestroika era and in the modern family, it acts for a teenager as a value and the first (main) support in the processes of socialization. The positions well known in psychology about the importance of interpersonal relations in adolescence for the formation of attitudes towards oneself as the basis of socialization are confirmed. Today, the frontiers of making friends have expanded enormously on the basis of Internet communication. The types of activities of interest to a teenager (traditional and new ones related to digitalization) are the third pillar of socialization. Conclusion. The “Ego – I” method of photo research has a wide range of possibilities for quantitative and qualitative analysis of the socialization process to identify the value Pillars of this process.

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