แสดงบทความที่มีป้ายกำกับ Analysis แสดงบทความทั้งหมด
แสดงบทความที่มีป้ายกำกับ Analysis แสดงบทความทั้งหมด

วันพุธที่ 21 มีนาคม พ.ศ. 2555

An Analysis of 'Rhapsody on a Windy Night' From TS Eliot's Prufrock and Other Observations

T.S. Eliot is regarded as an extremely important modernist writer. He inaugurated a range of narrative and stylistic techniques which exercised a considerable influence over modernism in literature. This article explores the poem 'Rhapsody on a Windy Night', from Eliot's Prufrock and Other Observations, concentrating primarily on the concept of time and how it figures in the poem.

Time is undeniably associated with notions of present and past, and it plays a significant role in 'Rhapsody on a Windy Night', hereafter in this article referred to as 'Rhapsody'. The modernist interest in time could be argued to be partially determined by earlier scientific discoveries. The concept of time itself had been in the throes of change since the sixteenth century. However the plethora of scientific explorations and discoveries in the nineteenth century seemed to herald a new age in science. While Eliot was engaged in writing the Prufrock poems, advances in theoretical physics, such as Einstein's formulation of the Special Theory of Relativity, were transforming the understanding of time as a physical measure. However, in regards to Eliot's own interests in time, it was the French philosopher Henri Bergson who exerted the most immediate influence.

While he was still residing in America, a young Eliot made extensive visits to Europe where he attended lectures given by Bergson. The philosopher's theories on time and his attempts at defining the nature of past, present, and future manifest themselves in several of the Prufrock poems, especially 'Rhapsody', which is usually regarded as reworking some of Bergson's ideas; therefore an understanding of them is useful when evaluating Eliot's own attitudes to the present. Most of Bergson is extremely difficult to comprehend so it is beneficial to attempt a summary of his ideas before analysing how they are represented in Eliot's poetry. In his Creative Evolution (1907) and Matter and Memory (1896) - two works Eliot was familiar with while composing the Prufrock poems - Bergson set out to define the nature of time and consciousness as experienced by human beings. He arrived at an idea he called 'le duree', meaning 'duration', a metaphysical construct which considers evolution and consciousness to be underlain by a constant flow of moments that cannot be measured by clock time. In Creative Evolution, Bergson proposed the notion that an individual's natural state is change, asserting that all feelings and ideas are undergoing constant change.

Bergson thought that an individual's memory forms a large part of this process, with past memories constantly resurfacing in a person's consciousness. It is this perpetual resurfacing of the past that plays a central role in 'Rhapsody', where, while wandering around a desolate environment, the protagonist experiences a variety of seemingly fragmented memories. In Matter and Memory Bergson endeavoured to evaluate the nature of consciousness and its inextricable association with time. This was accomplished by attempting to define the relationship between past, present and future. Bergson considered the true essence of time is its transitory nature. This presents a problem in identifying the exact point that could be considered 'the present'. Bergson concedes that what we identify as the present is formed by sensations deriving from the past and actions directed towards the future, and it is this inherent duality that informs much of the content of 'Rhapsody'.

The poem is located in an urban environment, a setting characteristic of much modernist poetry. As with the other Prufrock poems, a defining feature of 'Rhapsody' is Eliot's perfection of a highly original and distinctly modern poetic voice. It is important to acknowledge that this poet persona is not intended to represent T.S. Eliot himself, but is instead a fictional construction that brings together the formal and thematic qualities of the poem. This particular poetic consciousness belongs to an alienated individual who recounts their experiences while wandering around a desolate city after midnight. The use of the word 'rhapsody' in the poem's title is somewhat ironic, in that we normally associate this word with 'enthusiasm' or 'extravagance'; the observations and recollections that the poet persona experiences appear more to do with degradation and futility, and the prevailing tone is generally bleak and depressing.

The poet persona in 'Rhapsody' is typified by a lack of control, predominantly illustrated by the seeming random appearance of memories. This pervasive sense of involuntariness acts in part as a poetic expression of Bergson's theories. Bergson's notion of the body acting as a conduit for a range of sensations deriving from a person's past experience is evinced in the lines 'The memory throws up high and dry / A crowd of twisted things'. In choosing to say 'the memory' instead of 'my memory', adds to the divided quality of the protagonist, as if he were composed of separated parts rather than being whole.

The reader gathers that the protagonist of 'Rhapsody' has little to no control over this incessant flow of resurfacing memories. Eliot illustrates this unpredictably of memory in several lines but perhaps most notably in the bizarre image of 'a madman shakes a dead geranium'. The geraniums become a symbol for the involuntariness of the poet persona's memory in the later lines 'The reminiscence comes / Of sunless dry geraniums'.

The street lamps the poet persona encounters play a key role in the poem. They are personified - a device that contributes to the protagonist's fragmented and dissociated nature - in the second stanza, with the lines 'The street-lamp sputtered / The street-lamp muttered / The street-lamp said'. Eliot accomplishes this disjointed effect by having the poet persona's perceptions depicted as observations from the street-lamps. For example, in the second stanza the protagonist is instructed by the street lamp to observe a woman, while in the fourth and fifth stanzas they are directed to look at a cat, and then the moon, respectively. These urban sightings are deliberately seedy and depressing: the woman is clearly a prostitute; the cat is described as slipping out its tongue to devour 'a morsel of rancid butter' - an act the reader assumes to be a subtle reflection on the protagonist's own futile existence; while the moon is delineated in the most unflattering, anti-romantic hue: 'A washed-out smallpox cracks her face'. These images and those from the protagonist's memory are juxtaposed with the inexorable march of clock time, illustrated by the stark fact that most of the stanzas begin by informing the reader of the actual time.

The concept of time plays an important role in 'Rhapsody on a Windy Night'. As this article has illustrated, the notion of the present is multifaceted, when Eliot's interpretation of the theories of Henri Bergson is taken into account.

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วันเสาร์ที่ 23 ตุลาคม พ.ศ. 2553

ICF vs SIP - A True Cost Analysis

The use of ICF construction and SIP walls is strongly debated in the sustainable construction industry. Both wall systems are very energy efficient and create super insulated walls that meet LEED accredited standards developed by the U.S. Green Building Council. Both products will construct such an airtight space that heat recovery ventilation systems are needed to produce airflow. These systems must be carefully installed to eliminate thermal breaks in the super insulated space. Traditional stick framing can claim up to R-20 walls. This, however, only considers the highest rated component in the wall, the insulation. Other lumber and utility members in the wall contribute to thermal bridging which is a main factor in heat gain and loss. Both ICF and SIP wall sections contain solid insulation material that will effectively eliminate conduction and convection in the building. In addition to energy efficiency, one of the greatest benefits that both systems share is the ability to construct quickly and accurately.

It is evident that both of these wall systems provide sustainable construction, but when it comes time to build, which one should you use? As most building decisions eventually do, it all comes down to cost. When analyzing the cost of these wall systems, it is important to understand the price varies according to each design, availability, and installation. This topic is debated by company representatives all over the internet. I am not a salesman for SIPs or ICFs, so consider this a fair analysis.

Cost per Square Foot?

It is very difficult to provide an estimation of cost based on square footage. Many factors are involved that can only be accounted for in the exact specifications of the architect's plans. A general cost for square foot of gross wall area may be compelling as a feasibility estimate in theory, but more factors must be involved according to design to make an appropriate estimate. One can research and find a wide range of cost estimates by vendors and builders. The average of these values should not be considered to estimate cost since they are from people trying to sell you a product. Instead, I have analyzed the trends of these values to find that the difference of these prices suggest that SIP construction costs 5-10% less than ICF construction per square foot.

Design

Window and door placement and shape must be accounted for when the fabricators make cuts in panels or forms. Waste is produced in this process while labor is involved driving the cost up. In some cases, the cost can be optimized in the design of the home by strategically dimensioning the home including window sizes and wall lengths according to dimensions suggested by multiples of panel or form sizes.

Many manufacturers consider structural live and dead load analysis of the design when estimating cost. This analysis of the plans will more accurately explain what thickness is needed where, and how much. The materials for ICF are more expensive; namely the concrete per square foot. Also, a prefabricated product is not being delivered to the site so the labor cost is more by the time the ICF walls are installed. The overall price for materials and installation of an ICF wall system can be gauged at about 30% higher than traditional poured walls.

In comparison, an ICF wall needs to be thicker than a SIP wall in order to achieve equal R-value. Thicker walls mean more material that also contributes to a higher cost compared to SIP construction.

Local Availability

Local availability can contribute in variance of price, and level of green construction. Not all contractors build with SIPs or ICFs, but as this construction, and production becomes more popular the price for both will come down. Contractors and manufacturers are most abundant in the Midwest and Southwest of the United States, making these regions cheapest to build using SIPs and ICFs. Investigate which contractor and manufacturer (SIP or ICF) is more local; this makes the project more sustainable and will most likely offer lower prices. However, beware of inexperienced contractors because it is a new building practice. In accordance, more experienced contractors typically can charge less.

Return

Sustainable building is encouraged by the return investment. An airtight, superinsulated home created by either of these wall systems allows for lower operational costs due to monthly utility bills. In addition, the HVAC equipment required to heat and cool this superinsulated house does not have to be as powerful, saving you hundreds or even thousands of dollars on initial HVAC costs. While these savings are equal between the two systems, other returns are not. Homeowner insurance savings are between 15-25% for ICF construction due to fire protection ratings and disaster resistance. However, no serious gains in equity are made for when it comes time to sell. At this time, tax benefits do not exist for building LEED projects, but it is hopeful that in the future they will. If considering a LEED scorecard in your decision, SIPs will score higher because it is a pre-built panel assembly.

Conclusion

SIP construction is generally considered less expensive when deciding which sustainable building envelope to use. However, each project varies in price of each according to design specifications. Design can be optimized to standard dimensions of each wall system to encourage lower costs. Whichever product is manufactured closer to the site is more sustainable and will cost less in comparison to each average cost. Considering this the cost difference between the two may increase or decrease. ICFs may cost more but they generally offer more return in terms of insurance deductions. Overall, it is important to investigate all of these aspects when deciding which will be less expensive.

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