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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.
1

Incorporating environmental index as waste into value stream mapping

Patil, Amar S. 12 1900 (has links)
In today’s fiercely competitive environment, the goal of any enterprise is to make money now and in the future (Goldratt, 1992). In order to fulfill this goal, an enterprise should eliminate waste embedded in the value stream. Industrial engineers frequently play a key role in reducing cost. The philosophy of many in lean manufacturing is that the things that can’t be measured can’t be properly managed (Womack & Jones, 1996). This thesis presents a method to incorporate an environmental index into the value stream and thereby increase the opportunities for waste minimization. The proposed method of incorporation of the environmental index is explained in detail using a hypothetical case study. How to calculate the environmental index, the present state and future state maps of the value stream are explained in detail. The two major steps presented by this method are: Identify environmental wastes and incorporate the identified wastes into the value stream map. For determining the method among given alternatives, this thesis uses the Waste Stream Prioritization Method WSPM) (TNRCC, 1998). It also provides an activity based model (IDEF0) to present the method for incorporating the environmental index / Thesis (M.S.)--Wichita State University, College of Engineering, Dept. of Industrial and Manufacturing Engineering. / "December 2005."
2

A Tourism Impact Index for Water-Based Natural Attractions Field-Tested in Subarctic and Maritime Climates

Fox, Jason 01 July 2019 (has links)
Tourism in cold and cool-climate regions is largely characterized by recreational and sightseeing activities at water-based natural attractions such as beaches, coastal cliffs, and waterfalls. While the economic benefits of the tourism industry can contribute to a sustainable future for these regions, the environmental implications of a hastilydeveloped industry cannot be ignored given that cold-climate and cool-climate landscapes are at risk of rapid environmental change from a warming climate and other environmental concerns. This study consisted of the development of the Tourism Impact Index for Water-Based Natural Sites, the first of its kind, and its application and refinement in the field at various water-based natural tourism sites in Iceland and the Washington Olympic Peninsula. As no direct precedent for the index exists, the creation of the initial index draft was informed by other environmental indices available from the literature in related disciplines. The index contains 44 visually-assessed indicators, each scored on a scale of zero to three regarding potential severity of environmental impact. As the index was applied throughout the two study regions, improvements were incorporated into the design so as to create a well-validated product that may be shared with tourism managers and developers and with researchers to aid in the continued expansion of literature on tourism-environment interactions.
3

Evaluating water quality and biotic indices in the Lower Little Bow River, Alberta

Scott, Janet L Unknown Date
No description available.
4

[en] EVALUATION INTELLIGENT MODEL OF WATER AND ENVIRONMENTAL QUALITY FOR A TROPICAL OLIGO-MESOTROPHIC RESERVOIR / [pt] MODELO INTELIGENTE DE AVALIAÇÃO DA QUALIDADE DE ÁGUA E DA QUALIDADE AMBIENTAL PARA UM RESERVATÓRIO TROPICAL OLIGO-MESOTRÓFICO

ANDRES BENJAMIN PALADINES ANDRADE 05 October 2018 (has links)
[pt] Uma forma de avaliar a qualidade da água e a qualidade ambiental de um reservatório para monitoramento futuro é listar e analisar as concentrações de tudo o que a mesma tem. Tal lista poderia ser tão longa quanto o número de elementos analisados, podendo ir de 20 e poucos componentes comuns a centenas. É assim que vários índices de qualidade têm sido propostos por serem capazes de sintetizar o maior número destes parâmetros de qualidade em um único valor de fácil interpretação. Não obstante, uma vez que a maior parte dos índices formulados serem para águas moventes, os mesmos têm pouca utilidade para lagos e reservatórios. Lagos e reservatórios são geralmente avaliados e classificados com base em índices de estado trófico e em análises de suas composições químicas. Porém, um índice de estado trófico não tem a mesma representatividade de um índice de qualidade, visto que o termo qualidade sugere uma avaliação subjetiva, importante ressaltar essa distinção de conceitos. Excelente ou pobre, a referência de qualidade da água depende do seu uso e das atitudes locais das pessoas. A definição de estado trófico e seu índice correspondente deveriam permanecer neutros a tais julgamentos subjetivos, mantendo-se numa estrutura dentro da qual podem ser feitas várias avaliações da qualidade da água. Dessa forma, no presente trabalho, criou-se um modelo de avaliação da qualidade da água e da qualidade ambiental para um reservatório tropical oligo-mesotrófico (reservatório das Lajes) capaz de representar em uma escala numérica as gradações nos níveis de qualidade, além de levar em consideração a subjetividade implícita no conceito de qualidade. A subjetividade da avaliação em discussão motivou o emprego da Lógica Fuzzy, metodologia capaz de representar, de forma mais eficiente e clara, os limites dos intervalos de variação dos parâmetros de qualidade para um conjunto de categorias subjetivas, quando esses limites não são bem definidos ou são imprecisos. Assim, foi desenvolvida uma ferramenta computacional baseada em Sistemas de Inferência Fuzzy que avalia automaticamente a qualidade em função de variáveis físicas, químicas e biológicas do reservatório. O referido modelo foi desenvolvido com base no conhecimento de especialistas em qualidade de água e qualidade ambiental do Centro de Ciências Biológicas e da Saúde da Universidade Federal do Estado do Rio de Janeiro (UNIRIO) e do Departamento de Biologia Animal da Universidade Federal Rural do Rio de Janeiro (UFRRJ). O modelo foi avaliado utilizando dados de coleta do reservatório das Lajes coletados no ano 2005, 2008 e 2009. / [en] There are many approaches to monitor the water and environmental qualities of a reservoir. One approach is to list and analyze the concentration of chemicals and physical characteristics that the amount of water it contains. Such a list could be as long as the number of elements analyzed, from a few common components to hundreds. Thus, many indices have been proposed since they are able to synthesize as many of these quality parameters into a single value for an easy interpretation. However, majority of the indices are formulated to evaluate lentic ecosystems, they have little use for lakes and reservoirs. Lakes and reservoirs are generally evaluated and classified based on trophic state indices and chemical composition analysis. Nevertheless, a trophic state index does not have the same representativeness of a quality index. The term quality implies a subjective judgment that is best kept separate from the concept of trophic state. Excellent or poor, water quality depends on the use of that water and the local attitudes of the people. The definition of trophic state and its corresponding index should remain neutral to these subjective judgments, remaining a framework within which various evaluations of water quality may be made. Accordingly, in today s world of technology and advancement there exists a unique model to evaluate water quality and environmental quality for a tropical oligo-mesotrophic reservoir which is located and known as the reservoir of Lajes in the State of Rio de Janeiro, Brazil. This model is capable of representing quality levels on a numerical scale gradation, and also takes into consideration the subjectivity implicit in the concept of quality. The subjectivity, implicit in the concept of quality, motivated the use of fuzzy logic. This is a methodology to represent more efficiently the limits of ranges of quality parameters for a set of subjective categories, when these limits are not well defined or are inaccurate. As a result, we developed a computational tool based on a Fuzzy Inference System that automatically assesses the quality in terms of the physical, chemical and biological characteristics of the reservoir. The model was developed based on the knowledge of experts on water quality and environmental quality from the Biological Sciences and Health Center of Universidade Federal do Estado do Rio de Janeiro (UNIRIO) and from the Department of Animal Biology of the Universidade Federal Rural do Rio de Janeiro (UFRRJ). The model was evaluated with data from the Lajes reservoir during the years 2005, 2008 and 2009.
5

Index environmentální demokracie podle Aarhuské úmluvy: východiska, rámec a indikátory / Environmental Democracy Index based on the Aarhus Convention: foundation, framework and indicators

Macurová, Miriam January 2021 (has links)
The focus of this master thesis is the concept of environmental democracy at the level of the Aarhus convention. Environmental democracy rights which are the rights to access to information, public participation in decision-making and access to justice in environmental matters were mentioned for the first time at the global level in Principle 10 of the Rio Declaration on Environment and Development in 1992. With this Principle the main role of public participation in decision-making in environmental matters was acknowledged and it had a significant impact on fulfillment of sustainable development goals. To these days the most important elaboration of Principle 10 in international law is Aarhus Convention signed within the framework of United Nations Economic Commission for Europe in 1998. Main research question of this thesis is if it is possible to measure environmental democracy on the level of the region of UNECE, so the implementation of the Aarhus Convention provisions by its member states. Therefore, the research problem is the creation of the theoretical framework and the methodological procedure for building of composite indicator which will measure environmental democracy rights at the level of Aarhus convention. That will be demonstrated on the first pillar of the Convention. This thesis...

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