The Mechanisms and Effects of Frost Heave Essay -- Soil Soils Agricult

The Mechanisms and Effects of Frost Heave ABSTRACT Frost heave is the increase in volume experienced by soils when they freeze. Water moves to the upper horizons from below; when it freezes it forms segregated ice lenses which push apart the soil around them as they grow, causing the observed volume increase. Frost heave has a number of effects upon the soil and upon structures supported by the soil which make it an important process to understand. INTRODUCTION During the freezing of some soils, nearly pure ice forms in segregated lenses parallel to soil isotherms (Hillel, 1980). The formation of these lenses causes frost heave, a phenomenon in which the surface of the soil is "heaved" vertically by as much as several tens of centimeters. The overall volume of the soil also increases greatly, and heave pressures of many atmospheres can build up (Mitchell, 1993). Frost heave often causes substantial soil disruption (cryoturbation) as well as damage to roads, fence posts, foundations, plants, and other structures within and on top of the soil. In this paper I will examine the mechanisms and effects of frost heave. MECHANISMS Early studies of frost heave hypothesized that the observed volume growth in the soil was entirely due to the increase in volume that occurs when soil water changes to ice. Experiments by Taber in the 1960's, however, demonstrated that frost heave occurred even in soils saturated in benzene and nitrobenzene, liquids that contract when they freeze (Hillel, 1980). This finding led to a search for the new mechanism, the particulars of which are still being resolved. Mitchell (1993) specifies three necessary conditions for ice segregation and frost heave to occur: 1. A frost susceptibl... ...in the soils of this region might be explained through frost heaving. Works Cited: Anderson, Suzanne Prestrud, 1988, The upfreezing process: Experiments with a single clast: Geological Society of America Bulletin, v. 100, p. 609-621. Clark, M.J. (Ed.), 1988, Advances in Periglacial Geomorphology: Chichester, John Wiley & Sons, 481 p. Dash, J.G., 1989, Thermonuclear Pressure in Surface Melting: Motivation for Frost Heave: Science, v. 246, p. 1591-1593. Durbin, Steve, Personal Communication on 10/12/96. Hillel, Daniel, 1980, Applications in Soil Physics: New York, Academic Press, Inc., 385 p. Mitchell, James K., 1993, Fundamentals of Soil Behavior: New York, John Wiley & Sons, 543 p. Smith, M.W., 1985, Observations of soil freezing and frost heave at Inuvik, Northwest Territories, Canada: Canadian Journal of Earth Science, v. 223, p. 283-290.

Pros and Cons of Social Studies Teaching

Characteristics of Short Stories [pic][pic] References Alphonse, M. , (2011). Naturalism in Literature. Retrieved November 20, 2012 from http://www. buzzle. com/articles/naturalism-in-literature. htmlom. Vaux, R. (2012). What Are the Basic Characteristics of Realism. Retrieved November 20, 2012 from http://www. ehow. com/facts_5714410_basic-characteristics-realism_. html. [pic] ———————– Dramatic Structure Exposition: Introduction to setting, situation, and main characters. Complication An event that introduces the conflict.Rising Action Crisis: Crucial moment for the protagonist to commit to a course of action. Climax The highest interest of conflict, the most action. Resolution The point when the conflict is resolved. Naturalism Realism Pessimism: When a character tends to repeat a phrase by having a pessimistic outlook, this sometimes emphasizes the inevitability or quality of death, or the end (Alphonse, 2011). Detachment: Th e author tries to maintain an objective tone by achieving a detachment or change through nameless characters.This focuses mainly on the plot and character rather than focusing on the character only (Alphonse, 2011). Determinism: The notion that individual characters have a direct choice on their lives is replaced by a focus on fate or nature; this is the opposite of the belief of free will. The author makes the reader believe that the fate of the character has already been predetermined by certain factors, especially environmental factors and he can do nothing to change it (Alphonse, 2011).Twist at the end: There is an overwhelming sense in the naturalist stories and novels that nature is not affected by human struggle. The key themes, survival, determinism, violence, and taboo, have been ideally portrayed in all the works of this literature genre (Alphonse, 2011). Accuracy: Realism strives for total accuracy in the depiction of its subjects. Devoid of any unnecessary dramatics or a rtistic affectation. Realistic works refrain from undue embellishment, and strive for a natural tone (Vaux, 2012). Read more: What Are the Basic Characteristics of Realism? eHow. com http://www. ehow. com/facts_5714410_basic-characteristics-realism_. html#ixzz2CmwKmoVv Honesty: Realism seeks the depiction of honesty. Avoid hiding things behind distortions or opinions. Unpleasant facts or images are presented as they are, as are plain or unassuming details about the content (Vaux, 2012). Independence: Philosophical realism stresses the independence of objects from the reader. The author gives a life and an existence separate from anything else, which will continue regardless of anyone's opinions the matter (Vaux, 2012).Ordinariness: The subjects of realistic works are defined not by their exceptional nature, but by how ordinary they seem. This allows ordinary to have a voice (Vaux, 2012). Difficulties: Realistic protagonists are often beset by great forces beyond their control or the natural world. Through indifference of a larger society, and in many cases they do not find triumph in their struggle. Unhappy endings are not always the norm in realistic stories, but they are fairly common. Happy endings often involve compromise and larger than life victories (Vaux, 2012).

The Importance Of Foreign Policy In The Asia-Pacific

Australia’s position in the Asia pacific remains strategically important to our domestic and international interests. Therefore, it is vital to maintain stability in this region for Australia’s economic prosperity and continued preservation of Australia’s values of cooperation and freedom in international territories. Summary Foreign policymakers within Australia face the challenge of establishing policy that retains American engagement with Australia (based on our historic alliances), while acknowledging Americas recent shift toward domestic priorities. Foreign policy will need to promote ongoing security, political and economic stability within the APR, continuing to acknowledge the global shift of international trade toward Asia.†¦show more content†¦125). President Xi’s rise and uncanny resemblance to authoritarianism of the past, alongside Chinas growing military and GDP is a concern for the region. Though sea lanes are becoming more crowded and contested with the balance of economic weight shifting, it is not wise to presume that military engagement is inevitable. Rather it is important to align Australias interest with long term regional security goals and continued skepticism of Chinese movement south and their defencive/offensive effort to retain and increase access to energy and other resources. Though it is assured by Chinese Premier Li Keqiang that China ‘will never seek dominance’ (Roggeveen 2017), Australia should proceed with caution and firmness. Our alliance with the US historically has been to continue support of their presence in the APR though an increase of this could prove damaging based on what Levy describes as military escalation due to organisational structures and implementation (Levy 1986 pg. 193). Consideration is also needed in regard to America’s foreign policy outlook and the Trump administrations domestic prioritisation. 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Sara Schepmann. Ms. Shea. American Literature. May 5Th,

Sara Schepmann Ms. Shea American Literature May 5th, 2017 Movie vs. Book Creating a film based on a highly acclaimed literary work that millions cherish and know word for word is nothing short of challenging. Maintaining the heart and soul of the novel in such a film can be near impossible, but Baz Luhrmann proved otherwise with his rendition of The Great Gatsby by F. S.Fitzgerald. And while there are several changes to the original novel, the changes are effective and further the overall meaning of the novel. Some of the changes that Luhrmann does include: the impact of Gatsby’s life on Nick and his reasoning for writing the book, the nature of Daisy Buchanan, Gatsby’s death, and the musical choices. While each of these changes were not†¦show more content†¦Knowing this solves why we hear the story from Nick rather than another character, like Daisy. This was a very effective choice for the movie and furthers the idea that Nick was always â€Å"within and without†, as he lived within the lives of the rich, bu t was without understanding of how everything impacted them. Daisy Buchanan is not so sweet and innocent as she is portrayed in Luhrmann’s film. Daisy is not innocent- her voice is full of money, she cries over shirts (not lost time), she sulks, she fake, she kills Myrtle, and she’s frivolous and careless with other’s feelings. In Luhrmann’s film, she is a dear, sweet girl who is lost in her own beautiful world of white dresses, mansions, and love, and in the end we are left feeling sympathetic for the character because she almost seemed upset about her decision. Daisy Buchanan is not that same girl in the novel. She is an heiress who sits upon chairs in her white dresses. She toys with the emotions of Gatsby. She chooses money over love and chooses Tom while Gatsby is away at war. And she doesn’t even take care of her own child. Despite the many differences between Daisy in the novel and Daisy in the movie, it is understandable as to why these decisions were made. People want to like the damsel in distress, the damsel being Daisy trapped with her abusive, unloyal husband, Tom. Had

The Aftermath Of War And Violence - 923 Words

The Aftermath of War and Violence War and violence are major problems. It does not matter in the world where someone lives, War and violence are always seen and heard. War and violence can affect people in different ways. Humanity has gotten so used to seeing people massacred, murdered, and killed. The young generation are growing up being taught that the best way to solve something is to go to war and kill people. War and violence are making society fall to little pieces. In Persepolis by Marjane Satrapi, the main character Marji lives in Tehran, which is in the middle of a war that goes on throughout Marji s childhood there. Many of the friends that she had and family members either served in the war or were prisoners of war, like her uncle that gets arrested and then killed. The Woman Warrior by Maxine Kingston has five different stories that are about experiences, good and bad ones that happened throughout the generations. War and violence are in both stories and affect b oth main characters in different and similar ways. One thing that has to do with violence in The Woman Warrior is when Kingston tells the story of her forgotten aunt, the â€Å"No Name Woman.† From what the story says, she had an affair and ended up getting pregnant. When the man found out, he got the village together and attaked the home of the pregnant aunt. The villagers came and â€Å"threw eggs and started slaughtering our stock (Kingston 4). The aunt was so ahasmed that she jumped down a wellShow MoreRelatedThe Aftermath Of The Holocaust1048 Words   |  5 PagesPeter Fiorella Mr. Whalen: RST 12PH, Period 6 Thesis Project 1 27 October 2015 The Aftermath of the Holocaust Introduction With the end of World War II, came the end of the Holocaust. The aftermath of the Holocaust has had a profound affect on non-Jewish and Jewish survivors who tried to rebuild their lives in society such as the country of Israel gaining statehood. 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Coca-Cola Is the Fizz Still There free essay sample

An in-depth look at the Coca-Cola Corporation, its management, marketing strategies and financial approach to business development. In this paper the author takes a close look at the Coca-Cola Corporation. The author looks at the management and how Douglas Daft came to the helm with his new philosophy of thinking local, rather than global management. The author examines what has happened to Coca-Cola over the last few years in various countries and how this has effected its reputation. The author them moves on to discuss Coca-Colas relationship with its bottlers, trade unions and profit margins. Finally the author looks at how Coca-Cola has re-established itself in China, creating a new business model and its wars with competitors. From the paper: Cokes overwhelming success in the U.S. is in large part due to its bottlers. Dafts decentralization strategy reassigns much of the work performed by 29,000 laid-off employees to the anchor bottlers (for marketing and sales) and to sub-contractors (for plant and office maintenance) resulting in fewer direct employees worldwide. We will write a custom essay sample on Coca-Cola: Is the Fizz Still There? or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page This strategy allows the company to concentrate its efforts on garnering market share while not having to take responsibility for global industrial relations. The anchor bottlers, Coca-Cola Enterprises and Cola-Cola Amatil, actually have more employees than Coca-Cola Company (CCC). The company relies on them to bottle and distribute the lion?s share of its products.

Science Commerce

The debate on the impact commerce has on science have been ongoing for several years so far. Notably, Slaght and Pallant (2012) stress that businesses were not interested in science until a new trend in the society appeared. The new trends occurred due to the change in consumers’ demand.Advertising We will write a custom essay sample on Science Commerce specifically for you for only $16.05 $11/page Learn More People have understood that scientific research may contribute to development of advanced products which may meet their needs. Clearly, contemporary consumers tend to pay attention on particular characteristics and possible uses of the product. They want to make sure that the product has been clinically checked. Companies willingly address their customers’ needs and this leads to quite a dangerous trend. Only particular products (and entire spheres) obtain investment while other spheres are stagnating. Slaght and Pallant (2012, 12) no te that companies focus on â€Å"short-term economic gains† as they need new products which meet customers’ expectations and are produced sooner than in other companies. Business competition contributes greatly to this process. It is noteworthy that this is not reflected in the sphere of science only as it is found in the educational system as well. Thus, students who work on commercially attractive products receive grants and get the opportunity to continue their research. At the same time, students working on projects in such spheres as environment or clinical research often fail to find proper investment and start working on more ‘profitable’ research. Therefore, researchers often blame businesses for their narrow interest. Scientists also argue that the government is responsible for providing proper investment to really beneficial projects which will have significant long-term benefits (Slaght Pallant 2012, 12). Admittedly, it is difficult to accuse b usiness for being focused on short-term gains as this is what they do. However, the government should address serious issues arising in the society and work on solutions. Therefore, it is responsibility of the government to invest into research.Advertising Looking for essay on business economics? Let's see if we can help you! Get your first paper with 15% OFF Learn More Some researchers note that this is a vicious circle which cannot be overcome. Businesses have funds but want short-term benefits while the government addresses long-term gains but has scarce resources. Researchers are victims of this system and have to collaborate with commercial companies to have a job. However, there is a solution to the problem. In the first place, it is essential to make the government and local authorities to invest more into science. Besides, it is possible to affect commerce. These days, companies are trying to develop favourable images and claim they are socially and environmen tally responsible. It is possible to launch a wide promotional campaign to incorporate research into the image of a responsible business. Consumers should be aware of benefits of long-term benefits of projects and areas of research. Students, volunteers and officials have to promote these ideas. Clearly, the campaign will be time- and effort-consuming. Nonetheless, it has a great potential as environmental issues also attracted people’s (as well as businesses’) attention after a lasting debate. In conclusion, it is possible to note that commerce has a negative effect on development of science as lots of projects remain underfunded. The negative effect has been apparent on different levels (science, education). Nevertheless, the business can have a favourable impact on science. Thus, companies may be forced to invest into projects which will have long-term benefits as this will contribute to development of their favourable image and, as a result, will ensure their profi tability. Reference List Slaght, J Pallant, A 2012, Reading Writing, http://www.englishforacademicstudy.com/edition2012/Sampleunits/EAS_Reading__Writing_SB_2012_sample.pdf. This essay on Science Commerce was written and submitted by user Parker Holder to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.