The education of John Stuart Mill was one of the most unusual ever planned or experienced. Beginning with his learning Greek at the age of three and continuing without a break of any kind to the age of fourteen, it constituted an almost total control of Mill's every waking activity, with the important exception of his visit to France at fourteen, until his appointment to the East India Company in 1823. It emphasized the "tabula rasa" theory, the effect of external circumstances on the developing mind, Hartley's Associationist theory, and the judicious use of the Utilitarian theories of the "pleasure-pain" principle. Conceived and carried out by Mill's father, James Mill, and his close friend, the Utilitarian philosopher Jeremy Bentham, the education was planned to develop John Stuart Mill as their disciple, reasoner, and advocate who would help the advance of the Utilitarian philosophy. Dependent on John Stuart Mill's native intelligence and docility, this carefully planned education was unusually successful, but it was successful at the price of Mill's emotional development. Mill's education was so much a part of his life that the development of his thought cannot be understood without some appreciation of its nature. A biographical approach is essential to an understanding of Mill. This is particularly true of the development of his poetic theory which itself was developed in a response to his efforts to integrate his views of poetry with his former philosophy. His interest in poetry derived from the time of his mental crisis in 1826, when he discovered that his preoccupation with the improvement of mankind did not provide him with the emotional satisfaction that his personal life demanded. Wordsworth's poetry, with its emphasis on the restorative powers of external nature, its sensitivity to human feelings, and its adherence to observed truths and quiet, contemplative moods, was so suited to Mill's temperament and situation that his reading it marked one of the great turning points in his life. After reading Wordsworth, Mill recovered his spirits, and not only recaptured his enjoyment of life, but also acquired a life-long devotion to poetry. Mill's poetic views were an outgrowth of his experience with Wordsworth's poetry and his desire to integrate all new ideas into his philosophy. Responding to Wordsworth's view that the feeling expressed in a poem gives importance to the action and situation, Mill placed his greatest emphasis on feeling as the essential characteristic of poetry. He agreed with Wordsworth that poetry is spontaneous, and that the thought in a poem is subordinate to the feeling. He explained the latter in terms of Hartley's Associationism. His lifelong concern for truth found its justification in his insistence that the object of poetry was to convey truthfully the feelings to which the poem gives expression. However, his poetic views were much narrower than Wordsworth's inasmuch as he neglected the imagination, and he excluded fiction from poetry in his unusual emphasis on identifying poetry with the lyric. In his efforts to integrate his poetic theory with his philosophical views, Mill followed Wordsworth's thinking that poetry is the opposite of science, and by emphasizing that the common purpose of science and poetry was their devotion to truth, Mill saw their unity in his conception of the complementary nature of their methods of conveying truth, the one by logic and the other by intuition. Mill's poetic theory tended to be narrow in the light of its overemphasis on feeling, its insistence on confining the word, poetry, to the lyric alone, and its relative devaluation of the imagination. Nevertheless, with its Wordsworthian overtones and its sense of purpose, it was essentially a Romantic theory. Its contention that the highest truths are intuitively known by the poet or artist underlined Mill's attempt to find a union of science and art in a devotion to truth. / Arts, Faculty of / English, Department of / Graduate

This diploma thesis serves as a design and implementation of a hobby CNC milling machine, for the modeling community. The work is conceived as an overview of the most common machining technologies. The following is an introduction to the construction of CNC milling machines and an introduction to the basic components used. Furthermore, the actual design proposals and a description of the implementation of two of them are presented. When designing the machine, emphasis was placed on the lowest possible price and availability of individual components.

This project examines the adaptive reuse of a disused nineteenth century textile mill building in Gilbertville, Massachusetts. While the original form and structure of the building type was conducive to maximum production of goods, contemporary uses require different forms. Although other mills in New England have been reused for housing, museums, or professional offices, my goal was to propose a program that related to the building’s original function as a place where people worked. Because the unemployment rate is rising in Massachusetts in 2010, I propose that the mill be reused as a training center where people learn green building techniques that they can use in their jobs. The form of this project is guided by environmental responses to the annual and daily solar paths. Primary among these responses is the conversion of the broad, south-facing masonry wall to a trombe wall system. Similarly, a south-facing light scoop is used on the north side to provide light and heat; shading devices are used throughout the building to prevent overheating.

For nearly a century, once prosperous mill communities throughout New England have struggled to adapt to ever-changing societal, cultural, and economic conditions. This project explores an architectural intervention for Fitchburg’s Rollstone Hill neighborhood, which seeks to reverse this trend by deploying a design strategy that begins with repurposing a 60,000 square foot mill. This strategy focuses on utilizing the fundamental and existing components of these planned communities—people, infrastructure, and economics—to cultivate the design and the relationships necessary to reconnect this neighborhood to the modern world.

Woody residues are byproducts with high lignocellulosic content, such as mill residues, logging residues, and other woody waste. This study estimated the impact of different mill characteristics, procurement attributes, constraints, and geospatial features on the utilization of woody residues to produce bioenergy by primary forest products manufacturers in the southern United States. Data were collected using a mail survey, and USDA and Esri geodatabases. Data analysis was conducted using analysis of variance, two-stage least squares, binary logit, and spatial logistic regression models. Approximately 70% of mills utilized woody residues for bioenergy purposes and 11% were willing to utilize additional logging residues to produce electricity. Mills were willing to pay US$12 (2012 dollars) per metric ton of logging residues at the mill gate and haul them for up to 93 kilometers. Mills with a larger capacity to utilize woody residues were more willing to utilize additional logging residues, pay a higher gate price, and haul them over longer distances. Regarding a mill type, pulp, paper, and paperboard mills and composite wood products mills were the largest woody residue utilizers and were willing to increase utilization of logging residues, pay higher prices, and haul them over longer distances. Utilization of woody residues increased with a processing capacity increase, equipment upgrades, and lower transportation costs logging residues. Mill willingness to utilize additional logging residues was higher for mills with the larger utilization of woody residues, lower quantities of disposable mill residues, anticipated equipment upgrades, and low importance for lack of storage space. Mills were more likely to utilize additional logging residues within proximity to a sawmill; pulp, paper, and paperboard mill; and a major road system, and less likely if a mill was in the vicinity of a river, forest, and mill producing other forest products. Results will help formulate future bioenergy policies, guide biomass energy investments and financial incentives, and help mill and land managers make more informed decisions regarding production and utilization of woody biomass. Future research is needed to evaluate the feasibility of utilizing logging residues by other facilities such as power plants and bioenergy facilities.

No description available.

Master of Science / Department of Grain Science and Industry / Cassandra Jones / Salmonella contamination in animal food production facilities is a growing concern. The bacteria has been the cause of 40% of pet food recalls in the past 5 years, and there are potential human health implications because pet food is a direct human contact food. A potential method to reduce Salmonella contamination in pet food is through the use of acidifiers and desiccants to destroy and inhibit growth of bacteria. The objective of this thesis was to quantify Salmonella contamination in livestock feed and pet food manufacturing facilities, and propose mitigation measures to mitigate the presence of pathogens in animal food. Therefore, the objective of Experiment 1 was to investigate sources of Salmonella contamination throughout livestock feed (n = 2) and pet food (n = 2) manufacturing facilities on a specific sampling day. Salmonella was present in all four facilities. However, one of the livestock feed manufacturing facilities had more than double the Salmonella-positive locations than all other facilities. This experiment demonstrated that surface type and location should be taken into consideration when controlling Salmonella contamination. In Experiments 2 and 3, the use of a commercial powdered dry acidulant, sodium bisulfate, was studied as a coating of dog kibble to reduce and prevent Salmonella growth over time. The coating reduced Salmonella concentration, and its efficacy was not impacted by altering the bulk density or surface area of the kibble. Experiment 4 was conducted to determine the efficacy of sodium bisulfate added to poultry mash to reduce or prevent Salmonella growth over time. The inclusion of the dry acidulant did not reduce Salmonella concentration; however, storage time reduced Salmonella contamination in poultry feed. In summary, Salmonella contamination exists in manufacturing facilities, but the location and magnitude of contamination differs. Furthermore, sodium bisulfate effectively reduces Salmonella contamination when applied as a pet food coating, but not in poultry feed.

No description available.

ABSTRACT It is well documented that repetitive exposures to high intensity sound can cause acoustic trauma to the ear resulting in hearing loss, and that occupational noise is a significant cause of adult-onset hearing loss. Research world wide has indicated a significant number of workers with hearing loss attributed to noise exposure. Noise-Induced Hearing Loss (NIHL) claims are responsible for the majority of occupational disease payouts. The study was undertaken in order to determine the extent of hearing loss due to noise exposure that could be ascribed to excessive exposure to noise, and to describe the noise-induced hearing loss by severity, type of work, and area of work and duration of service. The cross-sectional study included 466 workers employed in a pulp and paper mill in KwaZulu Natal (KZN) South Africa. It involved the assessment of 932 individual audiograms to diagnose noise-induced hearing loss and the calculation of the percentage loss of hearing from pre placement to the year 2005. Audiometry results were presented for noise-induced hearing loss in relation to area of work, duration of service, categories of severity and age group. The prevalence of noise-induced hearing loss in the pulp and paper mill was 21% (98/466) and with 79% (368/466) of workers whose audiograms returned results not indicating NIHL. 75 workers were excluded due to workplace transfers. Type of work, area of work and years of service correlated significantly with a diagnosis of noise-induced hearing loss. As a department, the wood yard (which included the wood chipping facility, maintenance workers and workers with 10 – 20 years of service) showed the most significant association. In categories of severity 16.7% of workers suffering from NIHL fall in the ≤ 5 Percentage Loss of Hearing PLH category. This study has confirmed the findings of others that noise exposure is a significant hazard in industry and an effective noise control programme is the only way to reduce the risk of NIHL. _____________________________________________________________________

The technology of multi-axis machining has been applied extensively to the manufacturing of dies, molds, and various aerospace components. For machining mechanical parts with complex, sculptured surfaces, the use of multi-axis machine tools is probably the only one solution for avoiding tool-part collision during machining. Since cutting force will be changed by cutter attitudes, the machined surface characteristic can also be affected by cutter attitudes. In this thesis, the major concern is focused on investigating the effect of the cutter attitude on machined surface roughness. Based on the relationship between the cutter incline angle and the enveloped condition in cutting, the correlation of the mean chip thickness and the cutter incline angle is observed. To identify the relationship between the cutter attitude and the workpiece surface roughness, experimental verification is performed by milling aluminum alloy material. By fixing the cutting depths and the width of tool paths, different spindle rotational speeds and cutter incline angles are taken to machine the workpieces. And then, the machined surfaces are measured for their surface roughness. Form the experimental results, it shows that the surface roughness will reach a peak value at a special cutter incline angle. The tendency between the surface roughness and the incline angle agrees with that between the mean chip thickness and the cutter attitude approximately.