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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Product disposal

Walker, Rebecca Elaine 28 August 2008 (has links)
Not available / text
22

Shanghai’s development into sustainable consumption : an insight from a retail apparel’s industry on change in consumer behavior

Hörndahl, Magda, Dervisevic, Sebila January 2015 (has links)
The concept of sustainable consumption is today an important area, due to the fact that humans of the world consume goods and services on a regular basis which contributes towards environmental change and deprivation of both renewable as well as nonrenewable resources. One of the areas that this concept can be applied within is the retail apparel industry. The consumption of clothing is an influential cause of the ongoing environmental alteration and the unsustainable consumption of textile and apparel is becoming an increasingly important phenomena. This study investigates how the retail apparel industry in Shanghai perceive consumers behavior towards sustainable consumption. The Chinese middle class is anticipated to increase a certain percentage the upcoming years. As a result it will lead to a heave in the consumption of all resources which will leave a considerable environmental impact. Sweden is considered to be one of the leading countries when it comes to sustainable living. In order to follow Sweden path of success in sustainable consumption a review has been conducted regarding important drivers which Sweden has adapted in order to improve attitudes towards sustainable consumption. These drivers are then later on compared to Shanghai’s current situation to see if they can be used to achieve the same result in Shanghai as they did in Sweden.The primary data consists of semi-structured interviews which have been conducted in Shanghai with established recycling retailers and Nordic retail vendors with a strong base in Sweden that have managed to establish their brand in China. The research findings that were concluded in the theoretical framework and the organizational review positioned three important drivers that can be used when analyzing the concept of sustainable consumption - consumers, businesses and the government. It has also been empirically proven that in comparison to Sweden where consumer’s behavior and attitudes towards sustainability are increasing and socially accepted, Shanghai demonstrates that the concept of sustainable consumer behavior and consumption is not as equally developed and accepted.
23

Agricultural Use of Recycled Water for Crop Production in Arizona

Cusimano, Jeremy, McLain, Jean E., Eden, Susanna, Rock, Channah M. 06 1900 (has links)
7 pp. / Agriculture is by far the largest water-demanding sector in Arizona, accounting for 70% of water demand (ADWR, 2009). Arizona’s agriculture industry is extremely diversified, producing many crops that can legally be irrigated with recycled water, including cotton, alfalfa, wheat, citrus, and vegetables. Throughout the State, farming communities are taking advantage of increasing supplies of recycled water.
24

Energy usage in a Through-Air-Dried (TAD) premium-tissue product utilizing recycled fiber

Burton, Greg 16 March 2010 (has links)
Does the inclusion of recycled fiber in the Through-Air-Dried (TAD) manufacturing process of a virgin-fiber premium-grade tissue product positively impact the manufacturing process and product? This question is explored by varying combinations of recycled fiber in a premium-tissue virgin-fiber furnish and measuring the impact on dewatered consistency and other important tissue quality attributes of tensile strength, permeability, modulus (Slope A) and caliper. The study indicates that the addition of even a minimal amount of recycled fiber into premium virgin-fiber furnishes negatively impacts dewatering and therefore requires more energy in the drying phase of the manufacturing process. Product quality attributes are negatively impacted as well. The common perception that using recycled fiber in a premium product is environmentally beneficial is also not an absolute conclusion for premium TAD products. The type of fiber available, the equipment utilized, recycling events and ultimate product disposal, are all factors requiring consideration for optimum environmental benefit.
25

Recycled memories : can flashbacks be triggered through experience design?

Fridriksson, Fridrik Steinn January 2013 (has links)
This paper examines the phenomenon flashbacks, often named the Proust phenomenon, through the lens of experience design. The research question is Can flashbacks be triggered through experience design? It would then be possible to call flashbacks memories recycled memories. To answer the question former studies were researched, mainly from the standpoint of cognitive psychology. The thesis discusses how different senses produce flashbacks and how they can be used as triggers. The difference between the connection of sight, sound, touch, taste and smell to experiences and flashbacks are examined, especially the extraordinary connection between flashbacks and the olfactory sense. This topic can not be completed without looking into Marcel Proust‘s texts in À la recherche du temps perdu and his poetic description on how flashbacks work. Through the lens of Proust, flashbacks are discussed as narratives and the thesis looks into the significance of the memories as a building block for our sense of ourselves. Several Icelandic storytellers are interviewed about their memories. Through their interviews the storytelling aspect of sharing memories becomes prominent, leading to a discussion on the social aspect of memory sharing. The thesis ends with a study in triggering flashbacks through an experience. An exhibition presenting memories of others through sensory stimuli is used to see the effects of memory sharing through appealing to our senses.
26

Manufacturing, testing, and evaluation of structural products with recycled polymers

Varthakavi, Santosh Amarnath. January 1900 (has links)
Thesis (M.S.)--West Virginia University, 2006. / Title from document title page. Document formatted into pages; contains xv, 171 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 138-140).
27

RESILIENT MODULUS OF RECYCLED AGGREGATES AS ROAD PAVEMENT MATERIALS

Singh, Pralendra 01 May 2015 (has links)
The sources of natural or virgin coarse aggregates are diminishing in alarming rate and its production is quite expensive, uses a lot of energy, and is not environmental friendly. Hence, utilizing the recycled aggregates like reclaimed or recycled concrete aggregate (RCA) and recycled asphalt pavement (RAP) on road pavement will not only preserve the natural aggregates but also reduce the negative environmental impact. It also helps to conserve the waste landfill sites. The major downside for the use of the recycled aggregate is the quality control during its production. This research characterizes RCA samples obtained from a demolished old foundation and RAP samples from old parking lot and determines their suitability as road pavement materials. Virgin aggregates, recycled aggregates, and several blended mixtures with 20 to 80% replacement of natural coarse aggregate or virgin aggregate (NCA or VA) by weight with RCA and RAP were prepared and tested for resilient modulus (Mr) and California Bearing Ratio (CBR) test. The durability of the virgin aggregate and recycled aggregate were also determined by micro-deval test. The resilient modulus value of 100% RCA and 100% VA was found to be very similar or higher but for 100% RAP the resilient modulus is higher than that of the 100%VA. The Resilient modulus of the RAP blended mixtures increases with the increase in the content of RAP percentage and for the RCA it was not consistent. The CBR values for the blended mixtures decreases with the increase in the percentage of the recycled aggregates. The micro-deval degradation test result for RCA was more than of VA due to presence adhere materials in RCA.
28

Utilização de resíduos de concreto em concreto auto-adensável

Branco, Roberto Pagliosa [UNESP] 10 February 2012 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:25:21Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-02-10Bitstream added on 2014-06-13T19:32:22Z : No. of bitstreams: 1 branco_rp_me_ilha.pdf: 820885 bytes, checksum: 92bc9984cf08068fd54072214c148bb4 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / O principal objetivo desse trabalho é buscar uma solução que viabilize melhorar as características do concreto auto-adensável (CAA) e que também possibilite o reaproveitamento dos resíduos gerados pela indústria da construção civil. O trabalho consiste em produzir CAA com adição de material fino constituído por resíduos de concreto em substituição ao agregado miúdo, objetivando obter uma mistura auto- adensável sem segregação, cujo resultado seja benéfico para as propriedades físicas e mecânicas do concreto. Para tanto, foram realizados ensaios visando a avaliar as propriedades do concreto no estado fresco, segundo o método proposto por Tutikian (2004), a fim de otimizar a sua resistência no estado endurecido com o menor custo possível. E ainda, examinar diferentes faixas granulométricas procurando uma correlação que propicie condições adequadas de trabalhabilidade e de resistência mecânica. Os ensaios ocorreram no Laboratório de Engenharia Civil da UNESP e no Laboratório CESP de Engenharia Civil em Ilha Solteira-SP. Os concretos confeccionados com resíduo mostraram-se viáveis por apresentarem resultados próximos ao do concreto usado como referência, fazendo com que os resíduos sejam uma ótima opção como material reciclável / The main objective of this paper is to search for a solution that makes possible to improve the characteristics of the self-compacting concrete(SCC) and also allows the reuse of the waste generated by the construction industry civil. The work is to produce SCC with the addition of fine material consisting of concrete waste to replace the fine aggregate in order to obtain a compacting mixture without self- segregation; the result is beneficial for physical and mechanical properties of concrete. To this end, tests were carried out in order to evaluate the properties of fresh concrete, according to the method proposed by Tutikian (2004), in order to optimize its resistance in the hardened condition with the lowest possible cost. And also examining different granulometric compositions in order to look for a correlation that provides appropriated working conditions and mechanical strength. The trials took place at the Laboratory of Civil Engineering of UNESP and at CESP Laboratory of Civil Engineering of Ilha Solteira-SP. The concrete made from waste appear to be viable because presents results close to the concrete used as a reference, so that residues shall be a great choice as recyclable material
29

Effects Of Fiber And Lithium On Mechanical Properties Of Concrete Made Fromrecycled Concrete Aggregate

Eskander, Ashraf 01 January 2006 (has links)
The growing demand of construction aggregates has raised concern about the availability of natural aggregates. Over two billion tons of natural aggregate are produced each year in the United States and that number is expected to increase to 2.5 billion tons by 2020. This has raised concern about the availability of natural aggregate. Discarding demolished concrete into landfills is a costly solution from an economical and environmental point of view. Many U.S. highway agencies are re-using Recycled Concrete Aggregates (RCA) as construction material. The use of fiber reinforcement in Portland Cement Concrete (PCC) has recently become a popular option in concrete construction because of its influence on preventing segregation, reducing early shrinkage cracks and increasing residual load capacity. Alkali-Silica Reaction (ASR) is a major problem in concrete, especially when using RCA, causing concrete expansion and cracks. Recently lithium has been found to reduce expansion due to ASR. This thesis will investigate the effect, of fibers soaked in lithium nitrate on the mechanical properties of RCA.
30

Preliminary Examination of Factors Affecting Manufacture of Value Added Products From Recycled Pallet Parts

Hosterman, Nathan Scott 26 June 2002 (has links)
Pallets are the single largest consumer of hardwood lumber in the United States. While the pallet industry has effectively adopted widespread pallet recycling, many pallets still go into landfills with little or no value gained from their material. Recovered pallet lumber has been proposed as a potential source of material for value added wood products. This study sought preliminary data on issues pertinent to the development of pallet parts as a source of raw material for value added products, with a focus on oak strip flooring. Issues examined included pallet disassembly efficiency, characteristics of recovered boards, and yield of blanks compatible with commercial flooring production. Disassembly of pallets was affected by pallet design. Overall 81% of the deckboards from all pallet designs were recovered, along with 70% of stringers. Oak boards useable in strip flooring represented 21% of the recovered boards studied. Proper board stacking was found to maintain a uniform (MC) which would reduce drying defects and complications. The manufactured blank dimensions would allow production of some of the thinner strip flooring commercially available. National Oak Flooring Manufacturers Association Pre-finished Oak Strip Flooring Grading Rules found almost 80% of the blanks made Prime and Standard Grades. Wide spread adoption of flooring production from recovered pallet would increase the value of recovered pallets, presumably justifying an increased rate and expanded scope of pallet recovery. Economics favoring such valued added recovery would create recovery-related jobs, decrease pallets going into landfills, and ease the demand on timber resources. / Master of Science

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