| Papers [1-15] of 100 :: [Page 1 of 7] | | Go to page : 1 2 3 4 5 6 7 —> | Search results on "CONCRETE GRAVITY DAMS": |
|
|
Concrete Gravity Dams, 2007.
An overview of the design and function of concrete gravity dams.
1,954 words (approx. 7.8 pages), 12 sources, MLA, $ 62.95
»
Click here to show/hide summary
Abstract
This paper discusses how concrete gravity dams are effective in most part due to their extreme size and weight, which counters all external forces, and how, used for many things, dams such as these can generate enormous amounts of hydropower and create massive reservoirs when necessary. Although dams do pose a certain amount of risk on the environment and those living around them, the positive aspects of dams seem to outweigh this risk.This paper explores the design behind concrete gravity dams, including but not limited to hydropower uses, effective external and internal forces, dam site selection, and many other related topics.
From the Paper
"Throughout the history of dams, many failures have been attributed to weaknesses in the concrete used in the construction of the dam. Because the concrete is the main component in most large dams, it is important that it meets certain standards. Concrete is susceptible to deterioration, especially if it is constantly freezing and thawing (Jansen 109). It is important, when designing a concrete gravity dam, to recognize that the concrete will become saturated over time. When the Saint Francis Dam collapsed in 1928 less than two years after it had been built, it was found that the engineers had not implemented into the design the idea that the concrete would become saturated and therefore become less effective. For this reason, among others, the resultant vector of the forces acting on the dam was misplaced (outside of the middle third of the foot) and the dam eventually collapsed (Jansen 181). In later investigations, the concrete was also found to have a void ratio of 14%, which would increase the degree of saturation (Jansen 179). "
| |
|
David Leavitt's ?Gravity?, 2005.
This paper discusses David Leavitt's "Gravity", a story of the relationship between a young man dying of AIDS and his mother.
1,010 words (approx. 4.0 pages), 0 sources, $ 35.95
»
Click here to show/hide summary
Abstract
This paper explains that the title of David Leavitt's book "Gravity" represents the double motif in the story, which are the finality of his last days of life and the effect this has on his mother and the inevitable force that spares no one. The author points out that gravity is a universal force and the cause of virtually all deterioration of both human beings and their structures; although others may not die of the same disease that will take Theo, they all will die eventually. The paper relates that gravity also has a metaphysical and psychological meaning because it is the force that pulls down toward the earth and must be must be reckoned with just as Theo's mother is willing to defy gravity as long as she needs to be a source of support for Theo.
From the Paper
"Theo has come home to his mother's house to die, and in a recollection he describes his first experience at the theater, enhanced by his mother's putting her own glasses on her son to enable him to see the action clearly. He wonders how deeply his mother is affected by his current condition and the various inconveniences and unpleasantries associated with his care, performed by his mother with no show of emotion. As the two attempt to engage in the normal activities of everyday life as much as possible, they enter a gift shop to buy a wedding present for his cousin. Theo's mother has always engaged in a competition with her sister, Bibi, regarding their sons. Bibi has only given Theo trivial gifts, so she wants to buy a suitably impressive gift to show her up."
| |
|
Precast Concrete, 2005.
This paper provides an overview of precast concrete and discusses related issues.
675 words (approx. 2.7 pages), 3 sources, $ 26.95
»
Click here to show/hide summary
Abstract
In addition to a basic definition of precast concrete and how it differs from standard concrete applications, this paper also addresses a number of other relevant points. Those points include, but are not limited to, the construction process, necessary equipment, and effects on construction schedules. It is hoped this brief overview will provide readers with a better grasp of the nature of precast concrete and its applications.
From the Paper
"The purpose of this paper is to provide a general overview of some of the major aspects and characteristics of precast concrete, a form of concrete in which pieces are not cast in place but are instead manufactured in bulk. Precast concrete offers a number of advantages including strength, modularity, and quality control during production."
| |
|
"The Concrete River", 2004.
A review of Luis Rodriguez?s poem, "The Concrete River".
1,060 words (approx. 4.2 pages), 1 source, MLA, $ 37.95
»
Click here to show/hide summary
Abstract
This paper examines how Luis Rodriguez?s poem, "The Concrete River", is his communication of his experience of the concrete, urban habitat. It looks at how, just like the 1960s and 1970s poets described the city as a concrete jungle, Rodriguez picks a metaphor familiar to his heritage and describes the city as the surrogate substitution of what would bring life to him if he lived somewhere else. It evaluates how Luis?s description of the meaningless of urban life for a poor Latino could not be more vivid.
From the Paper
"The poet begins by building the parameters of his life. The world is covered with dust, and even the attempt to relax under the shade tree cannot help him escape form the reality of dying ? death. The trees too are having the life strangled out of them by ivy. Yet he is with his friends, homeboys, and they are living for, and bowing down to the only hope they have. Spray paint can fumes are the subject of their homage. They have long since stopped looking for meaning in the concrete world around them, and now bow to the hallucinogenic prosperities of aerosol propellant."
| |
|
"Gravity's Rainbow: The Musical", 2002.
Explores the novel "Gravity's Rainbow" by Thomas Pynchon.
723 words (approx. 2.9 pages), 1 source, MLA, $ 25.95
»
Click here to show/hide summary
Abstract
The paper examines the novel "Gravity Rainbow" by contemporary American author, Thomas Pynchon, which fictionalizes a theater-going experience. The paper discusses Pynchon's use of musical elements in his novel and the way they are interspersed in the storyline. Finally, it examines the possibility of creating a screenplay based on "Gravity Rainbow" and shows why such a move would not be successful.
From the Paper
"There are a few new variables that come into play if the reader is to take the theater references seriously. The foremost one is the introduction of anew perspective, anew point of view: the audience. In previous works, Pynchon has always tried to play to the masses. He allows for multiple impressions and ideas, and pays lip service to as many as feasible. In The Crying of Lot 49, for instance, a reader can pursue a the story from several individual angles only to arrive at one conclusion: that the answer is being held just beyond the last page. In Gravity's Rainbow, Pynchon continues to play these mind games with the reader by handing them multiple impressions over various characters and situations in the form of multiple narrative voices, interspersing the thoughts of several character in the mainstream of one dominant voice. This is most prevalent in the first chapter, where most of the characters are introduced. The readers' perceptions are colored from the onset of the story. Naturally, most of the theatrical references are scattered in this section. Everything slides into place for chapter two, the credits are over, and the movie rolls."
| |
|
Concrete Reality in Philosophy, 2002.
Compares the philosophies of Plato and Aristotle on the issue of concrete reality.
2,112 words (approx. 8.4 pages), 1 source, MLA, $ 66.95
»
Click here to show/hide summary
Abstract
Aristotle differed from his teacher, Plato, in his emphasis on the supremacy of observation and on concrete reality. The paper shows how Aristotle sought to learn all that was possible about the reality perceivable by the senses and the logic he developed was an effort directed at this end. The paper describes how he sought to develop a universal method of reasoning in order to learn everything possible about reality and in his work "Categories" he sets out a scheme to describe particular things by identifying them in terms of their properties, states, and activities. The paper compares Aristotle's philosophies to those of Plato's, which have come to be known as Platonic Ideas.
From the Paper
"Aristotle was originally one of Plato's students, but he came to disagree with what he called the "other-worldliness" of his teacher. For Plato there were two worlds, the world perceived by the senses, and the world of the Forms, the ideals of which the objects in this world are only pale imitations. Aristotle disputed this, asking how, if the Forms are the essences of things, the Forms could exist separated from things, and how, if the Forms were the cause of things, they could exist in a different world? Aristotle made a distinction between form and matter, but he said that these two features of reality could be distinguished only in thought, not in fact. The forms are not separate entities but are embedded in particular things in this world. Every object has both form and matter. Form is universal in that many particulars may have the same form. Form is the thing's essence or nature and is related to its function. The object's matter is what is unique to that object, the object's "thisness," and it stands as the principle of individuation. For Aristotle, reality is composed of a plurality of substances."
| |
|
Thomas Pynchon?s "Gravity?s Rainbow", 2002.
This paper discusses the social placement of Americans in the National Book Award winner ?Gravity?s Rainbow? by Thomas Pynchon.
520 words (approx. 2.1 pages), 3 sources, $ 18.95
»
Click here to show/hide summary
Abstract
This paper examines the character Slothrop in Pynchon?s ?Gravity?s Rainbow?, who has dropped his social placement in Europe because he is an American. The paper points out that when Slothrop's parents lost their money during the depression, he was forced to affiliate himself with the poor and he now speaks in the American vernacular which automatically orients him to the lower class. The author observed that Pynchon?s use of vernacular language extends beyond dialogue and carries over into the narrative voice.
From the Paper
"Two Americans who do seem to possess a degree of respect in the novel that others do not are Bodine and Waxwing. They command respect because of their various connections throughout Europe. They have the demeanor of businessmen who offer a degree of utility to the other characters, which posits them in a category of power. However, both men's activities are criminal and underworldly, suggesting that people give them respect out of fear instead of in response to their character. Their actual power through criminal intimidation overrides the familiarity of their vernacular."
| |
|
Corrosion in Concrete Bridge Girders, 2008.
A critical examination concerning the problem of corrosion in concrete bridge girders with recommendations to resolve the issue.
5,442 words (approx. 21.8 pages), 10 sources, APA, $ 133.95
»
Click here to show/hide summary
Abstract
The paper discusses the fact that roads invariably require bridges to cross over roads and rivers, and as strong as the bridges may seem to be at the time of their construction, engineers have not been able to build corrosion-proof bridges. The paper highlights the problems associated with corrosion of steel reinforced concrete bridge girders as they are vitally important to travelers and to engineers. The paper also reviews the numerous studies that have been conducted, and provides recommendations for better predictability vis-a-vis when a bridge is due to be replaced.
Outline:
Table of Contents
List of Figures, Nomenclature, Introduction
Hypothesis of Theoretical Considerations
Procedure
Results
Discussion of Results
Conclusions
Recommendations
From the Paper
"This paper provides a strong engineering and safety background into the problems associated with corrosion and bridges. The procedure used in this paper is presented through the careful examination of the existing literature. Some of the literature may be a few years old but the past is prologue; what went before is as relevant as what is going on today. Other literature presented is quite contemporary, and all of the materials presented in this paper are relevant. Especially relevant are studies that have been conducted six, seven, eight and more years ago; compared and contrasted with what engineers and scientists are saying in the latest bulletins and research documents. For example, the American Association of State Highway and Transportation Officials (AASHTO) offered standard specifications for highway bridges in the 1990s that seem to be practical and yet have clearly not provided a workable solution to the ongoing problems of corrosion.
In the article titled "Reliability of Reinforced Concrete Girders Under Corrosion Attack," the authors (Frangopol, et al, 1997) embrace the AASHTO strategy; first, the effects of corrosion "on both moment and shear reliabilities" are carefully investigated; second, a "reliability-based design approach" that is based on minimization of "total material cost including corrosion effects" is taken into consideration. This article suggests that taking into consideration the environmental stressors on concrete (due to corrosion), along with the AASHTO standards, can then be plugged into "reliability-based optimization software." That software is a product of the combining of general-purpose optimization software and a Monte Carlo simulation-based evaluation program.
Hence, the procedure for coming up with reliable estimates of the life expectancy of concrete girders comes in two phases, according to this research. Phase one spans the time from construction to corrosion initiation; phase two, from corrosion initiation to time when "unacceptable levels of section loss have occurred." But is this procedure proactive or reactive? The answer - it is indeed reactive, and it is also outdated. But nevertheless it should be researched and understood because it is part of the literature. Science cannot predict future conditions and dynamics based on models and hypotheses alone. A foundation for the projections of the future is based on evidence from the past. "
| |
|
"In Defiance of Gravity", 2004.
An analysis of the "Harper's Magazine" article, "In Defiance of Gravity: Writing, Wisdom and the Fabulous Club Gemini," written by Tom Robbins.
1,346 words (approx. 5.4 pages), 1 source, MLA, $ 45.95
»
Click here to show/hide summary
Abstract
This paper discusses Tom Robbins's article, "In Defiance of Gravity: Writing, Wisdom and the Fabulous Club Gemini," as it appeared in "Harper's Magazine". The paper examines how Robbins takes a serious look at the lack of playfulness and cosmic wisdom in Western literature. The paper explains that he uses his personal experience to emphasize how important this element is. Robbins's article is effective because he is taking a serious event in his life and using it as a teaching tool.
From the Paper
"Robbins also calls this playfulness "crazy wisdom" (Robbins), which is "the opposite of conventional wisdom" (Robbins). While this mindset might be difficult and unpopular, it is something to which we should strive. This can be seen in Robbins own experience on the bridge. Something as simple as a cat's meow triggered something in his memory that caused him to think of this playful state of mind. It was not something that Robbins set out to do on the bridge but the moment changed his life and how he thinks about life and writing. It is interesting because if Robbins had not been on the bridge, he might not have had this revelation. Strangely, he had to be at one extreme point in his life to see another extreme aspect of living. Without the desperation that led him to the bridge, he might not have had the insight or courage to realize what he did."
| |
|
Precast Concrete, 2003.
A discussion on precast concrete
690 words (approx. 2.8 pages), 5 sources, MLA, $ 23.95
»
Click here to show/hide summary
Abstract
This paper discusses a the history of precast concrete It explores its uses, types, capabilities and the impact of new technology on this conventional construction material. The author also mentions the expansion of its uses over time.
From the Paper
"Webster's New World Dictionary defines precast concrete as concrete in the form of blocks, pillars, bridge sections etc. that have been cast into form before being put into position. While precast concrete did not become popular as building ..."
| |
|
Piaget?s Concrete Operational Stage, 2004.
A definition of the concrete operational stage of development, as presented by Jean Piaget.
1,857 words (approx. 7.4 pages), 3 sources, MLA, $ 59.95
»
Click here to show/hide summary
Abstract
This paper discusses how there is a great deal of difference between the preschool-aged child and the elementary-aged. Jean Piaget identified this developmental stage as ?concrete operational? and identified onset to completion as between the ages of six and ten. his paper explains this theory and examines how it applies to understanding childhood development.
From the Paper
"As a child grows he or she is able to confront issues specifically related to an age appropriate difficulty. They receive input from the people who are important to them and, based on what they believe is success or failure of the goal associated with that stage, the next stage is confronted. People develop throughout their lifetime. It is how the individual perceives the world as well as the way in which the people around them respond that provides the impetus for change and development. There are physical, cognitive, social, and moral characteristics concerned with different developmental stages."
| |
|
Gravity and Velocity, 2005.
A discussion of two physics experiments about gravity and velocity.
2,300 words (approx. 9.2 pages), 2 sources, APA, $ 79.95
»
Click here to show/hide summary
Abstract
This paper presents two physics experiments. The first experiment is measuring gravity using Atwood's machine, a system of weights and pulleys. The second experiment is measuring velocity using a collision experiment with a ball rolling down an incline. The paper presents the methodology, theoetical calculations and experimental calculations.
| |
|
Using Concrete for Building, 2002.
Discussion on the use of concrete for building purposes.
650 words (approx. 2.6 pages), 4 sources, $ 26.95
»
Click here to show/hide summary
Abstract
The following paper talks about using concrete to build homes, commercial buildings bridges, and roads.
| |
|
Precast Pre-stressed Concrete, 1993.
A look at the history, production, properties, materials, types, advantages and applications of precast pre-stressed concrete.
4,725 words (approx. 18.9 pages), 14 sources, $ 135.95
»
Click here to show/hide summary
From the Paper
"Precast Prestressed Concrete
Concrete is a stonelike material obtained by allowing a carefully proportioned mixture of cement, sand, gravel (or some other aggregate), and water to harden (Winter & Nilson, 1972, p. 1). The bulk of concrete consists of the fine and coarse aggregates (p. 1). The cement and water interact chemically to bind them together (p. 1). One mode in which the substance finds common usage is as precast prestressed concrete. This building material can be employed in the construction of a variety of different structures.
In general, during the mixing of concrete, more water is added than is necessary for the binding reaction to occur (Winter & Nilson, 1972, p. 1). This extra water gives the concrete an initially liquid character (p. 1). In liquid form, concrete can..."
| |
|
Concrete: Pre-Stressing, 1993.
Reviews the methods and effectiveness of pre-stressing concrete.
3,375 words (approx. 13.5 pages), 4 sources, $ 119.95
»
Click here to show/hide summary
From the Paper
"INTRODUCTION
Precast/prestressed concrete is a type of reinforced concrete in which the steel reinforcement has been tensioned against the concrete, resulting in a self-equilibrating system of internal stresses (meaning tensile stresses in the steel and comprehensive stresses in the concrete) which improves the response of the concrete to external loads. Concrete is strong and ductile in compression, but it is weak and brittle in tension. Its response to external loads is improved by applying a precompression (Collins and Mitchell, 1991, 1).
Bljuger (1988) states that precast construction is essentially a matter of transferring most of the work from the construction site to the prefabrication plant. This makes for superior working conditions so that both labor productivity and ..."
|
|
|
