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A Comprehensive Embodied Energy Analysis FrameworkTreloar, Graham John, kimg@deakin.edu.au,jillj@deakin.edu.au,mikewood@deakin.edu.au,wildol@deakin.edu.au January 1998 (has links)
The assessment of the direct and indirect requirements for energy is known as embodied energy analysis. For buildings, the direct energy includes that used primarily on site, while the indirect energy includes primarily the energy required for the manufacture of building materials. This thesis is concerned with the completeness and reliability of embodied energy analysis methods. Previous methods tend to address either one of these issues, but not both at the same time. Industry-based methods are incomplete. National statistical methods, while comprehensive, are a black box and are subject to errors. A new hybrid embodied energy analysis method is derived to optimise the benefits of previous methods while minimising their flaws.
In industry-based studies, known as process analyses, the energy embodied in a product is traced laboriously upstream by examining the inputs to each preceding process towards raw materials. Process analyses can be significantly incomplete, due to increasing complexity. The other major embodied energy analysis method, input-output analysis, comprises the use of national statistics. While the input-output framework is comprehensive, many inherent assumptions make the results unreliable.
Hybrid analysis methods involve the combination of the two major embodied energy analysis methods discussed above, either based on process analysis or input-output analysis. The intention in both hybrid analysis methods is to reduce errors associated with the two major methods on which they are based. However, the problems inherent to each of the original methods tend to remain, to some degree, in the associated hybrid versions.
Process-based hybrid analyses tend to be incomplete, due to the exclusions associated with the process analysis framework. However, input-output-based hybrid analyses tend to be unreliable because the substitution of process analysis data into the input-output framework causes unwanted indirect effects.
A key deficiency in previous input-output-based hybrid analysis methods is that the input-output model is a black box, since important flows of goods and services with respect to the embodied energy of a sector cannot be readily identified. A new input-output-based hybrid analysis method was therefore developed, requiring the decomposition of the input-output model into mutually exclusive components (ie, direct energy paths).
A direct energy path represents a discrete energy requirement, possibly occurring one or more transactions upstream from the process under consideration. For example, the energy required directly to manufacture the steel used in the construction of a building would represent a direct energy path of one non-energy transaction in length. A direct energy path comprises a product quantity (for example, the total tonnes of cement used) and a direct energy intensity (for example, the energy required directly for cement manufacture, per tonne).
The input-output model was decomposed into direct energy paths for the residential building construction sector. It was shown that 592 direct energy paths were required to describe 90% of the overall total energy intensity for residential building construction. By extracting direct energy paths using yet smaller threshold values, they were shown to be mutually exclusive. Consequently, the modification of direct energy paths using process analysis data does not cause unwanted indirect effects.
A non-standard individual residential building was then selected to demonstrate the benefits of the new input-output-based hybrid analysis method in cases where the products of a sector may not be similar. Particular direct energy paths were modified with case specific process analysis data. Product quantities and direct energy intensities were derived and used to modify some of the direct energy paths. The intention of this demonstration was to determine whether 90% of the total embodied energy calculated for the building could comprise the process analysis data normally collected for the building. However, it was found that only 51% of the total comprised normally collected process analysis. The integration of process analysis data with 90% of the direct energy paths by value was unsuccessful because:
typically only one of the direct energy path components was modified using process analysis data (ie, either the product quantity or the direct energy intensity);
of the complexity of the paths derived for residential building construction; and
of the lack of reliable and consistent process analysis data from industry, for both product quantities and direct energy intensities.
While the input-output model used was the best available for Australia, many errors were likely to be carried through to the direct energy paths for residential building construction. Consequently, both the value and relative importance of the direct energy paths for residential building construction were generally found to be a poor model for the demonstration building. This was expected. Nevertheless, in the absence of better data from industry, the input-output data is likely to remain the most appropriate for completing the framework of embodied energy analyses of many types of productseven in non-standard cases.
Residential building construction was one of the 22 most complex Australian economic sectors (ie, comprising those requiring between 592 and 3215 direct energy paths to describe 90% of their total energy intensities). Consequently, for the other 87 non-energy sectors of the Australian economy, the input-output-based hybrid analysis method is likely to produce more reliable results than those calculated for the demonstration building using the direct energy paths for residential building construction.
For more complex sectors than residential building construction, the new input-output-based hybrid analysis method derived here allows available process analysis data to be integrated with the input-output data in a comprehensive framework. The proportion of the result comprising the more reliable process analysis data can be calculated and used as a measure of the reliability of the result for that product or part of the product being analysed (for example, a building material or component).
To ensure that future applications of the new input-output-based hybrid analysis method produce reliable results, new sources of process analysis data are required, including for such processes as services (for example, banking) and processes involving the transformation of basic materials into complex products (for example, steel and copper into an electric motor).
However, even considering the limitations of the demonstration described above, the new input-output-based hybrid analysis method developed achieved the aim of the thesis: to develop a new embodied energy analysis method that allows reliable process analysis data to be integrated into the comprehensive, yet unreliable, input-output framework.
Plain language summary
Embodied energy analysis comprises the assessment of the direct and indirect energy requirements associated with a process. For example, the construction of a building requires the manufacture of steel structural members, and thus indirectly requires the energy used directly and indirectly in their manufacture. Embodied energy is an important measure of ecological sustainability because energy is used in virtually every human activity and many of these activities are interrelated.
This thesis is concerned with the relationship between the completeness of embodied energy analysis methods and their reliability. However, previous industry-based methods, while reliable, are incomplete. Previous national statistical methods, while comprehensive, are a black box subject to errors.
A new method is derived, involving the decomposition of the comprehensive national statistical model into components that can be modified discretely using the more reliable industry data, and is demonstrated for an individual building. The demonstration failed to integrate enough industry data into the national statistical model, due to the unexpected complexity of the national statistical data and the lack of available industry data regarding energy and non-energy product requirements.
These unique findings highlight the flaws in previous methods. Reliable process analysis and input-output data are required, particularly for those processes that were unable to be examined in the demonstration of the new embodied energy analysis method. This includes the energy requirements of services sectors, such as banking, and processes involving the transformation of basic materials into complex products, such as refrigerators. The application of the new method to less complex products, such as individual building materials or components, is likely to be more successful than to the residential building demonstration.
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Creating Resilience – A Matter of Control or Computation? : Resilience Engineering explored through the lenses of Cognitive Systems Engineering and Distributed Cognition in a patient safety case studyLundqvist, Tomas January 2013 (has links)
In recent years, the research approach known as Resilience Engineering (RE) has offered a promising new way of understanding safety-critical organizations, but less in the way of empirical methods for analysis. In this master’s thesis, an extensive comparison was made between RE and two different research approaches on cognitive systems: Distributed Cognition (DC) and Cognitive Systems Engineering (CSE) with the aim of exploring whether these approaches can contribute to the analysis and understanding of resilience. In addition to a theoretical comparison, an ethnographic healthcare case study was conducted, analyzing the patient safety at a pediatric emergency department using the Three-Level Analytical Framework from DC and the Extended Control Model from CSE, then conducting an RE analysis based on the former two analyses. It was found that while the DC and CSE approaches can explain how an organization adapts to current demands, neither approach fully addresses the issue of future demands anticipation, central to the RE perspective. However, the CSE framework lends itself well as an empirical ground providing the entry points for a more thoroughgoing RE analysis, while the inclusion of physical context in a DC analysis offers valuable insights to safety-related issues that would otherwise be left out in the study of resilience.
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行動支付之策略行銷分析:以微信支付、LINE Pay為例 / Strategic Marketing Analysis in Mobile Payment: The Cases of WeChat Pay and LINE Pay續嘉揚, Hsu, Chia Yang Unknown Date (has links)
隨著科技不斷地進步與網際網路的日益普及,消費者手中的智慧型手機似乎早已不限用於傳統的通話功能。作者在十幾年前就曾幻想過,如果將來出門在外身上可以只攜帶一支手機,那該有多好。沒想到當初天真爛漫的想像,轉眼幾年後便已幾乎實現。隨著相機、手電筒、地圖、筆記本、隨身聽……等等逐一被我們放進智慧型手機裡,手機已經不再只是手機。而近年來大眾開始把「錢」放進手機,許多企業也紛紛推出「結合手機與錢」這種概念的各式產品與服務。當供給端與需求端都已出現時,行動支付產業就此產生。
行動支付有許多應用與模式,本研究主要針對兩個以即時通訊應用程式為初始業務的案例―微信以及LINE進行探討。兩家案例公司都是在原有業務成長至一定規模後,開始發展新興行動支付業務,分別為:微信發展微信支付,LINE發展LINE Pay。本研究不僅透過資料瞭解這兩個案例之發展歷程、營運模式以及現況;同時藉由策略行銷4C理論架構,逐步分析這兩個案例是如何各自處理交換關係中的四個成本。
研究結果發現,歷經了差不多的光陰,兩個案例所呈現出的現況卻是天壤之別。儘管兩者因為政治環境、市場規模,以及所面對之消費者習慣上的差異,導致經營成效有所落差。不過排除這些先天因素,微信支付相較於LINE Pay,確實於各階段將4C策略執行地更加完善,並因此推動4C良性循環。LINE Pay本身對於4C架構仍有許多進步空間,本研究最終建議LINE Pay可以參考微信支付部分作法,並針對台灣市場適度調整,期許LINE Pay能順利啟動4C良性循環,為自己創造長期競爭優勢。 / With the advances of technology and the popularization of the internet, nowadays smartphones can perform several functions besides communication (e.g., camera, flashlight, map, notebook, Walkman). Moreover, people begin “putting” the money on their smartphones in recent years. Many corporations have also launched new products or services featuring the combination of mobile phone and money. As the growth of both supply and demand in the market, the mobile payment industry has gradually formed.
There are many kinds of application and models in the mobile payment industry. This thesis concentrates the attention on two instant messaging companies―WeChat and LINE. Both companies began expanding mobile payment business―WeChat Pay and LINE Pay―after their original business grew mature. This thesis not only reviews the development history and business models of two companies, but also uses the 4C analysis framework to analyze how they dealt with the four transaction costs.
The study shows that the operating results of WeChat Pay and LINE Pay are very different. There is still room for LINE Pay to grow. Although WeChat Pay and LINE Pay face quite distinct political environment, market size, and consumers, the thesis suggests that LINE pay can refer to the strategies and methods of WeChat Pay, and make some adjustments so as to successfully create the positive 4C cycle and long-term competitive advantage.
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Novel Analysis Framework Using Quantum Optomechanical Readouts For Direct Detection Of Dark MatterAshwin Nagarajan (10702782) 06 May 2021 (has links)
With the increase in
speculation about the nature of our universe, there has been a growing need to
find the truth about Dark Matter. Recent research shows that the Planck-Mass
range could be a well-motivated space to probe for the detection of Dark Matter
through gravitational coupling. This thesis dives into the possibility of doing
the same in two parts. The first part lays out the analysis framework that
would sense such an interaction, while the second part outlines a prototype
experiment that when scaled up using quantum optomechanical sensors would serve
as the skeleton to perform the analysis with.
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Determining the academic reading needs of teacher trainees of English at ISCED-Huila, AngolaCacumba, Joaquim Sapalo Castilho 2014 April 1900 (has links)
The purpose of this dissertation was to implement a needs analysis and on the basis of the findings come up with a framework consisting of practical stages and processes, for determining the academic reading needs of teacher trainees of English, at Instituto Superior de Ciências da Educação da Huíla (hereafter, ISCED-Huíla), a higher teacher training institution in Lubango, in southern Angola. The investigation was initially prompted by the lecturers’ perceptions that the academic reading level of undergraduate teacher trainees in Angola was inadequate for the demands of tertiary level study. A scientific approach to investigating the needs of these students was thus adopted. A needs analysis was undertaken in order to determine, in a systematic manner, the academic literacy levels of the students, their attitudes towards reading, the reading strategies they claimed to use when reading academic texts, their academic reading lacks and needs, and the teacher trainers’ perceptions and opinions on the students’ reading competence in specific reading sub-skills, and on university needs analysis procedures. In all, 45 first-year teacher trainees and 5 teacher trainers were involved in the main study. The teacher trainees were required to answer the Accuplacer test, an academic literacy standardized assessment. Both teacher trainees and teacher trainers completed a corresponding questionnaire survey. The findings showed that, among others, first, teacher trainees’ academic literacy levels were below expected from a tertiary level reader; second, there were certain discrepancies between what teacher trainees and teacher trainers considered to be the needs, skills and lacks of the teacher trainees; and third, academic literacy and academic reading skills should be developed in both L1/Portuguese and L2/English. Therefore, a framework for determining the academic reading needs of teacher trainees, for syllabus and programe development and evaluation is presented. It is hoped that the results of the study will be of assistance to English for Academic Purposes (EAP) reading professionals and to teacher educators, especially those in developing countries, involved in selecting, adapting and designing teacher training programmes, materials and tasks in order to improve academic literacy levels in their countries, schools and universities where English is taught as a foreign language. / English Studies / M.A. (Applied Linguistics)
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The gender dimensions of land reform in South Africa : a case study of Daggakraal rural housing and resettlement projectRakolojane, Moipone Jeannette 11 1900 (has links)
This study is about the gender dimensions of land reform in South Africa. The case study is that of a housing and resettlement project in Daggakraal, Mpumalanga Province. The aim of the study was to describe and analyse empirical realities for rural women, in relation to land, in Daggakraal. The focus was on the research questions for the study namely the nature of land reform practice; whether gender issues were central in land reform at all stages of the project; whether or not participation of women was truly genuine; and the constraints that were faced in the process of land reform delivery. The study was conducted in Daggakraal, a rural town in Mpumalanga province, South Africa. Research methods employed were both quantitative and qualitative with more emphasis on the latter. A total of 100 respondents participated in the study. This number included 10 key informants 3 of whom were trained as research assistants.
The findings indicate that there was very little gender analysis carried out prior to land reform. For this reason land reform has not benefitted the women and men of Daggakraal. Land reform policies and other legislation put in place were not followed to the letter in Daggakraal and in other areas of the country where land reform was implemented; the first land reform (SLAG) has not benefitted the poor, especially women; the rural terrain is an area of contestation and competing interests between women and men. There is also a lack of institutional arrangements to implement a gendered approach to land reform. This study demonstrates the need to tackle and transform the existing power relations at the household level, if government is serious about the gender dimension of land reform in South Africa. In a small way it is hoped that this study will contribute to the limited writing on land reform and gender and also provide a gendered critique of the land reform programme in South Africa. The Gender Analysis Framework (GAF) and the feminist and gender perspectives have helped the researcher to understand and explain the gender dynamics in Daggakraal. / Development Studies / D. Litt. et Phil. (Development Studies)
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Analýza čtenářské úrovně žáků 1. - 3. ročníků se zaměřením na genetickou metodu čtení / Analysis of Pupils' Reading Level in 1st - 3rd Grade Focused on the Evolutionary ReadingFRČKOVÁ, Karolína January 2019 (has links)
The diploma thesis deals with the teaching of the first reading focused on the Genetic method. It is divided into theoretical and research part. The theoretical part contains an overview of currently used methods of teaching reading. The Genetic method is described from the historical and present point of view. Also included are an overview of available textbooks for teaching this method. Also it deals with the basic features of reading performance, with the reading level of pupils through diagnostic examinations and with working with lagging readers. The research part deals with the analysis of reading level of pupils of the 1st - 3rd year of the Genetic method. The analysis was performed using diagnostic examinations, which were recorded and subsequently analyzed on the basis of basic reading characters. The research is focused primarily on mistakes against the qualities of reading, which are detailed and compared.
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Determining the academic reading needs of teacher trainees of English at ISCED-Huila, AngolaCacumba, Joaquim Sapalo Castilho 4 1900 (has links)
The purpose of this dissertation was to implement a needs analysis and on the basis of the findings come up with a framework consisting of practical stages and processes, for determining the academic reading needs of teacher trainees of English, at Instituto Superior de Ciências da Educação da Huíla (hereafter, ISCED-Huíla), a higher teacher training institution in Lubango, in southern Angola. The investigation was initially prompted by the lecturers’ perceptions that the academic reading level of undergraduate teacher trainees in Angola was inadequate for the demands of tertiary level study. A scientific approach to investigating the needs of these students was thus adopted. A needs analysis was undertaken in order to determine, in a systematic manner, the academic literacy levels of the students, their attitudes towards reading, the reading strategies they claimed to use when reading academic texts, their academic reading lacks and needs, and the teacher trainers’ perceptions and opinions on the students’ reading competence in specific reading sub-skills, and on university needs analysis procedures. In all, 45 first-year teacher trainees and 5 teacher trainers were involved in the main study. The teacher trainees were required to answer the Accuplacer test, an academic literacy standardized assessment. Both teacher trainees and teacher trainers completed a corresponding questionnaire survey. The findings showed that, among others, first, teacher trainees’ academic literacy levels were below expected from a tertiary level reader; second, there were certain discrepancies between what teacher trainees and teacher trainers considered to be the needs, skills and lacks of the teacher trainees; and third, academic literacy and academic reading skills should be developed in both L1/Portuguese and L2/English. Therefore, a framework for determining the academic reading needs of teacher trainees, for syllabus and programe development and evaluation is presented. It is hoped that the results of the study will be of assistance to English for Academic Purposes (EAP) reading professionals and to teacher educators, especially those in developing countries, involved in selecting, adapting and designing teacher training programmes, materials and tasks in order to improve academic literacy levels in their countries, schools and universities where English is taught as a foreign language. / English Studies / M.A. (Applied Linguistics)
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The gender dimensions of land reform in South Africa : a case study of Daggakraal rural housing and resettlement projectRakolojane, Moipone Jeannette 11 1900 (has links)
This study is about the gender dimensions of land reform in South Africa. The case study is that of a housing and resettlement project in Daggakraal, Mpumalanga Province. The aim of the study was to describe and analyse empirical realities for rural women, in relation to land, in Daggakraal. The focus was on the research questions for the study namely the nature of land reform practice; whether gender issues were central in land reform at all stages of the project; whether or not participation of women was truly genuine; and the constraints that were faced in the process of land reform delivery. The study was conducted in Daggakraal, a rural town in Mpumalanga province, South Africa. Research methods employed were both quantitative and qualitative with more emphasis on the latter. A total of 100 respondents participated in the study. This number included 10 key informants 3 of whom were trained as research assistants.
The findings indicate that there was very little gender analysis carried out prior to land reform. For this reason land reform has not benefitted the women and men of Daggakraal. Land reform policies and other legislation put in place were not followed to the letter in Daggakraal and in other areas of the country where land reform was implemented; the first land reform (SLAG) has not benefitted the poor, especially women; the rural terrain is an area of contestation and competing interests between women and men. There is also a lack of institutional arrangements to implement a gendered approach to land reform. This study demonstrates the need to tackle and transform the existing power relations at the household level, if government is serious about the gender dimension of land reform in South Africa. In a small way it is hoped that this study will contribute to the limited writing on land reform and gender and also provide a gendered critique of the land reform programme in South Africa. The Gender Analysis Framework (GAF) and the feminist and gender perspectives have helped the researcher to understand and explain the gender dynamics in Daggakraal. / Development Studies / D. Litt. et Phil. (Development Studies)
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