Дисертації з теми "Community centers Energy conservation"
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Wu, Kwok-cheung. "Redevelopment and conservation of YMCA building." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B25949111.
Повний текст джерелаIncludes special report study entitled: Re-integration of a historic building : the YMCA building at Bridge Street, Sheung Wan and system integration in the conservation project. Includes bibliographical references.
Kumar, Anubhav. "Use of air side economizer for data center thermal management." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/24672.
Повний текст джерелаAkoush, Sherif. "Exploiting surplus renewable energy in datacentre computing." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610058.
Повний текст джерелаHughes, Kristen. "The city as a community-based force for sustainability in energy systems." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 577 p, 2009. http://proquest.umi.com/pqdweb?did=1891601521&sid=6&Fmt=2&clientId=8331&RQT=309&VName=PQD.
Повний текст джерелаWu, Kwok-cheung, and 胡國祥. "Redevelopment and conservation of YMCA building." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31983108.
Повний текст джерелаBullock, Alan. "The optimisation of an hydraulic accumulator energy buffer and wind/diesel system for remote community electricity generation." Thesis, University of Reading, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278091.
Повний текст джерелаMartiskainen, Mari. "Developing community energy projects : experiences from Finland and the UK." Thesis, University of Sussex, 2014. http://sro.sussex.ac.uk/id/eprint/51506/.
Повний текст джерелаWarner, Katherine Anne. "Investigating the effects of noise pollution from energy development on the bat community in the Piceance Basin." Thesis, Colorado State University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10149854.
Повний текст джерелаThroughout the United States, and globally, there has been recent interest in large-scale monitoring of bats, driven largely by the many threats that bats currently face such as climate change, white nose syndrome, habitat loss, and wind energy development. Additionally, many human activities generate sensory disturbances including anthropogenic light and noise pollution that have been shown to affect habitat use and foraging efficiency in bats and other wildlife. My research took place in the Piceance Basin of northwestern Colorado, where there has been considerable development of natural gas resources in recent years. During the drilling phase for natural gas, drill rigs run continuously for weeks to months at each well development site. In addition to the physical disturbance and increased human presence at the well pad, drill rigs are brightly lit, and also emit high amplitude anthropogenic noise. The light and noise from active drill rigs can travel many miles from the source, far beyond areas where wildlife habitat has been physically disturbed. The goal of my research was to isolate noise from the other associated forms of disturbance, and investigate what, if any, effects drilling noise is having on the bat community.
My dissertation is comprised of three stand-alone chapters, as follows. In Chapter 1, I test two different strategies for deploying bat detectors to determine which strategy yields higher detection and species identification rates. In Chapters 2 and 3, I present the results of noise playback experiments. Chapter 2 compares bat activity levels at control sites, and at treatment sites where noise was added experimentally. In Chapter 3, I monitor bat activity patterns both during and after a noise playback experiment to determine how rapidly activity levels recover post-exposure. A brief summary of each chapter follows.
In Chapter 1, I focus on the methods for recording bat echolocation calls, and identifying free-flying bats in the field. Unlike capture techniques, current acoustical methods for bat monitoring do not provide information about unique individuals, age, sex, or reproductive status. What acoustical monitoring can provide is information about bat activity levels, habitat use, and species identification in some cases, without interfering with bat movement, foraging, or other activities. The commercially available technology for recording bat echolocation calls has rapidly advanced, and there are many ultrasound detector–recorder systems (hereafter, ‘bat detectors’) available with a wide range of recoding options. Due to rapid attenuation of ultrasound signals, one of the challenges to acoustical monitoring is the relatively limited recording range of bat detectors. To increase this range, I took advantage of a bat detector that had the ability to record on two channels (in stereo). By attaching microphone extension cables, I was able to increase the distance between the left and right channel microphones, thereby increasing the acoustical sampling space. When this data collection effort took place, the SM2BAT+ detector from Wildlife Acoustics, Inc. was the only commercially available bat detector that had the two-channel recording capability. I deployed two identical bat detectors at each study site, and compared the recordings made using the stereo option to recordings made from a single channel.
In general, the stereo setup outperformed the single-channel systems. With the stereo microphones separated by approximately 10 m, the bat detectors that recorded in stereo produced 2.7 times more recordings overall. The increased number of recordings resulted in a higher number of calls that could be identified to species. The benefit of the stereo setup was not equal for all species. With the stereo microphones only about 10 m apart, there was some overlap between the calls that were identified on the left and right channels. The highest rate of overlap (19.5%) was in big brown bats (Eptesicus fuscus ). Rates of overlap for species in the Myotis genus were all less than 5%, and none of the recordings of pallid bats (Antrozous pallidus ) were identified on both channels for the same bat-pass-event. The stereo option is a promising way to increase the number of bat recordings, which may be a particularly useful when surveying for rare species.
In Chapter 2, I used a noise playback experiment to isolate noise from other forms of anthropogenic disturbance, and monitored the bat activity level response. I recorded the sounds of an active drill rig, and played these recordings at treatment sites. I measured sound pressure levels at the drill site, and estimated the sound pressure levels at the noise playback sites. Using outdoor speakers, I was unable to project the drill rig noise at the same amplitude of an actual rig, but I was able to significantly elevate the sound levels at treatment sites. The noise levels at treatment sites roughly corresponded to noise levels that can be experienced approximately 100 m from a drill rig. This distance from a drill rig is typically beyond the well pad, in habitat that is not physically disturbed. There is widespread recognition that noise, light, and other sensory disturbances can affect the behavior and physiology of wildlife. The goal of the experiment was to determine if noise alone impacted the activity levels of bats, after being separated from the other forms of disturbance at a drilling site. I projected noise at treatment sites that were not already developed, and paired these treatment sites with control sites with no added noise. I conducted this experiment in 2013 and 2014, and present the results from 20 sites each year (10 control-treatment pairs annually).
Both years, there was an overall decrease in bat activity at treatment sites, when compared to control sites. In 2013, 8 of the 10 treatment sites had lower estimated bat activity levels. In 2014, all 10 treatment sites had lower estimated activity levels, although for some control-treatment pairs there was overlap in the credible intervals. Multiple species showed signs of reduced activity at treatment sites. For both years, M. ciliolabrum and L. cinarius had reduced activity levels at treatment sites. The response of other species was more idiosyncratic, with reduced activity in one field season, and inconclusive or no response during the other year. The species that did respond to the noise treatment have very different life histories, making it difficult to generalize about how any given species may respond to noise.
Chapter 3 focuses on bat activity level trends over time during a two period cross-over experiment. The classic two-period crossover experiment consists of two treatments (i.e., treatments ‘A’ and ‘B’), where each site is exposed to both treatments, and the order of the treatments is randomly assigned. For this study, ‘A’ refers to no added noise, and ‘B’ refers to a noise treatment consisting of the projected recording of drilling noise. A total of 12 sites were randomly assigned to the A:B sequence, and 13 sites were assigned to the B:A sequence. I acoustically monitored bat activity throughout the experiment, with particular interest in understanding the activity level dynamics post-exposure to the noise treatment. Most studies that investigate the impacts of noise on wildlife have focused on the response to noise during a noise treatment period, or noise event. Only a handful of previous studies have addressed the post-exposure period after noise ends. In these studies, noise treatments or events were relatively short in duration (a few minutes), and the corresponding recovery period was monitored over a similarly brief timeframe. My study differs in both the duration of the noise treatment (continuous noise over six days/nights), and in the duration of the post-exposure monitoring period (also six days/nights). I focused on the response of four bat species, Myotis ciliolabrum, Myotis evotis, Lasiurus cinareus, and Taderida brasiliensis.
Of the four focal species, M. evotis showed no substantial response to the noise treatment. The responses of M. ciliolabrum and T. brasiliensis were somewhat challenging to interpret. The overall activity levels of these species were lower during the treatment period in the A:B sequence, but they also had declining activity levels throughout the pre-exposure period. The activity patterns of L. cinareus provided the most convincing evidence of noise avoidance. Furthermore, L. cinareus activity levels did not show signs of recovery after the noise treatment ended in the B:A sequence. This suggests that after the six-day post-exposure period, there were still lingering effects of noise on L. cinareus activity levels. This study provides evidence that the effects of noise can linger for multiple days post-exposure. Future wildlife studies that assess periods of post-exposure could contribute meaningfully to this area of research, and aid in the development of conservation and mitigation efforts.
Hill, Heather Lorraine. "Connecting to self, community, and the environment: Energy conservation and well-being in households with low income." Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/122957/1/Heather%20Lorraine_Hill_Thesis.pdf.
Повний текст джерелаDubois, James H. "An architectural vision of Marysville, Kansas : community energy planning and design - a process to achieve a self reliant, sustainable future." Thesis, Kansas State University, 1985. http://hdl.handle.net/2097/14004.
Повний текст джерелаPronto, Lindon N. "Exploring German and American Modes of Pedagogical and Institutional Sustainability: Forging a Way into the Future." Scholarship @ Claremont, 2012. http://scholarship.claremont.edu/pitzer_theses/21.
Повний текст джерела"Simple and effective dynamic provisioning for power-proportional data centers." 2012. http://library.cuhk.edu.hk/record=b5549189.
Повний текст джерела在设计在线算法的时候,我们利用了未来工作负荷信息。这是因为在很多的现代系统中,短期的未来工作信息可以被精确的估计。我们也测试了我们的算法在有预测噪声时候的性能,结果表明我们的算法在有噪声时,也能很好的工作。我们相信利用未来信息是设计在线算法的一个新的角度。在传统的在线算法设计过程中,我们通常不考虑未来输入信息。在这种情况下,许多在线问题有简单的最优的算法,但是这个最优算法的竞争比却很大。其实未来输入信息在很多在线问题中都能在一定程度上被精确预测,所以我们相信我们可以利用这些未来输入信息去设计竞争比较小的在线算法,这样设计的在线算法具有更多的应用优点,并在理论上也给予我们启发。
Energy consumption represents a significant cost in data center operation. A large fraction of the energy however, is used to power idle servers when the workload is low. Dynamic provisioning techniques aim at saving this portion of the energy by turning of unnecessary servers. In this thesis we explore how much gain knowing future workload information can bring to dynamic pro-visioning. In particular we develop online dynamic provisioning solutions with and without future workload information available. We first reveal an elegant structure of the offline dynamic pro-visioning problem which allows us to characterize the optimal solution in a "divide-and-conquer" manner. We then exploit this insight to design two online algorithms with competitive ratios 2 - α and e/ (e - 1+ α), respectively where 0 ≤ α ≤ 1 is the normalized size of a look-ahead window in which future workload information is available. A fundamental observation is that future workload information beyond the full-size look-ahead window (corresponding to α =1) will not improve dynamic provisioning performance. Our algorithms are decentralized and easy to im-plement. We demonstrate their effectiveness in simulations using real-world traces.
When designing online algorithms, we utilize future input information because for many modern systems their short-term future inputs can be predicted by machine learning time-series analysis etc. We also test our algorithms in the presence of prediction errors in future workload information and the results show that our algorithms are robust to prediction errors. We believe that utilizing future information is a new and important degree of freedom in designing online algorithms. In traditional online algo¬rithm design future input information is not taken into account. Many online problems have online algorithms with optimal but large competitive ratios. Since future input information to some extent can be estimated accurately in many problems we believe that we should exploit such information in online algorithm design to achieve better competitive ratio and provide more competitive edge in both practice and theory.
Detailed summary in vernacular field only.
Detailed summary in vernacular field only.
Lu, Tan.
Thesis (M.Phil.)--Chinese University of Hong Kong, 2012.
Includes bibliographical references (leaves 76-81).
Abstracts also in Chinese.
Abstract --- p.i
Acknowledgement --- p.iv
Chapter 1 --- Introduction --- p.1
Chapter 1.1 --- Motivation --- p.1
Chapter 1.2 --- Contributions --- p.4
Chapter 1.3 --- Thesis Organization --- p.5
Chapter 2 --- Related Work --- p.6
Chapter 3 --- Problem Formulation --- p.10
Chapter 3.1 --- Settings and Models --- p.10
Chapter 3.2 --- Problem Formulation --- p.13
Chapter 4 --- Optimal Solution and Offline Algorithm --- p.15
Chapter 4.1 --- Structure of Optimal Solution --- p.15
Chapter 4.2 --- Intuitions and Observations --- p.17
Chapter 4.3 --- Offline Algorithm Achieving the Optimal Solution --- p.18
Chapter 5 --- Online Dynamic Provisioning --- p.21
Chapter 5.1 --- Dynamic Provisioning without FutureWorkload Information --- p.22
Chapter 5.2 --- Dynamic Provisioning with Future Workload Information --- p.23
Chapter 5.3 --- Adapting the Algorithms to Work with Discrete-Time Fluid Workload Model --- p.31
Chapter 5.4 --- Extending to Case Where Servers Have Setup Time --- p.32
Chapter 6 --- Experiments --- p.35
Chapter 6.1 --- Settings --- p.35
Chapter 6.2 --- Performance of the Proposed Online Algorithms --- p.38
Chapter 6.3 --- Impact of Prediction Error --- p.39
Chapter 6.4 --- Impact of Peak-to-Mean Ratio (PMR) --- p.40
Chapter 6.5 --- Discussion --- p.40
Chapter 6.6 --- Additional Experiments --- p.41
Chapter 7 --- A New Degree of Freedom for Designing Online Algorithm --- p.44
Chapter 7.1 --- The Lost Cow Problem --- p.45
Chapter 7.2 --- Secretary Problem without Future Information --- p.47
Chapter 7.3 --- Secretary Problem with Future Information --- p.48
Chapter 7.4 --- Summary --- p.50
Chapter 8 --- Conclusion --- p.51
Chapter A --- Proof --- p.54
Chapter A.1 --- Proof of Theorem 4.1.1 --- p.54
Chapter A.2 --- Proof of Theorem 4.3.1 --- p.57
Chapter A.3 --- Least idle vs last empty --- p.60
Chapter A.4 --- Proof of Theorem 5.2.2 --- p.61
Chapter A.5 --- Proof of Corollary 5.4.1 --- p.70
Chapter A.6 --- Proof of Lemma 7.1.1 --- p.72
Chapter A.7 --- Proof of Theorem 7.3.1 --- p.74
Bibliography --- p.76
"Dynamic provisioning in next-generation data centers with on-site power production." 2013. http://library.cuhk.edu.hk/record=b5884391.
Повний текст джерелаThesis (M.Phil.)--Chinese University of Hong Kong, 2013.
Includes bibliographical references (leaves 92-95).
Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web.
Abstracts also in Chinese.
Chiu, Yen-Hsun, and 邱彥勳. "A Diagnostic Study on Existing Buildings Energy Conservation in the Cold Term Focused on Taipei City Administrative centers." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/36176750369779796586.
Повний текст джерела淡江大學
建築學系碩士班
98
Buildings have reached saturation state for the last decade in Taiwan.Major energy consumption generally does not concern energy saving issues particularly for old buildings which are accounted for 97% of all. This study is to detect and analyze problems of energy consumption in Taipei City administrative office buildings. As a doctor has to know the symptoms in order to diagnose and give treatments to diseases, problems for energy consumptions have to be detected and solutions evaluated before they are solved. The research uses district office space in Taipei City as samples for detecting and diagnosis energy consumption problems. Case studies and documents are reviewed to understand strategies and methods employed in office energy conservation in Taiwan. EUI data are collected to evaluate energy efficiency in office spaces. Temperature, humidity and wind speed are measured and recorded on site in the cold term for PMV-PPD calculation to generate comfort evaluation indexes. In the mean time, on site interviews are also conducted to understand real users’ immediate experience. The following results are concluded based on statistical data analysis: 1.Small office buildings have highest EUI values followed by medium-size and large size office buildings, indicating that small office buildings are in fact most energy consuming while large office are more energy efficient. 2.PMV-PPD values suggest that small office buildings have best human thermal comfort level, followed by medium-size office buildings and large office buildings. 3.Based on the above findings, medium size office buildings are considered most energy efficient without air conditioning in the cold terms due to fenestration distance between the two laterals of a building which allows natural ventilation for less energy consumption as well as better human thermal comfort level.
Kilcioglu, Cinar. "Essays on Cloud Pricing and Causal Inference." Thesis, 2016. https://doi.org/10.7916/D8R78F9Q.
Повний текст джерелаLi, Wan-Chun, and 李琬淳. "A Comparison Study on Aspects of Energy Conservation and Carbon Reduction between Chong-Xing Community and Wen-Nan Community Sponsored by Environmental Protection Administration, Executive Yuan, R.O.C.(Taiwan)." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/59918181926373310187.
Повний текст джерела嘉南藥理科技大學
環境工程與科學系
100
In order to reduce the effects of globe warming, the government of Taiwan has focused all attentions on promoting the policies and subsidies in terms of energy saving and carbon reduction (ESCR). The purpose of this study was to investigate the different aspects concerning with energy conservation and carbon reduction between Chong-Xing community of North Dist. and Wen-Nan community of South Dist. in Tainan. In terms of the conception of low carbon city, low carbon community, environmental satisfaction, and the recognition of low carbon community implementation, the Wen-Nan community got better positive sense and higher mean value of Likert scale than Chong-Xing community. Nevertheless, with higher potential to develop the low carbon community, Chong-Xing community reached better recognition related to a positive relationship between ESCR and environmental quality than Wen-Nan community. In terms of ESCR facilities, both communities showed relatively differences in the recognition, preferential purchase and actual possession. Particularly, highest recognition and lowest possession characteristics were observed in solar devices. For both communities, the main reason for purchasing ESCR devices is for environmental awareness. The most favorable action of ESCR for both communities is to turn off the light and pull the plug after you left. ESCR facility questions irrelevant to economic factors, differences of ESCR cognition affected by the occupations and salaries were also found.
Watson, Siobhan T. "Building on Local Successes: The Energy Efficiency and Conservation Block Grant Program and its Lessons for Federal Climate Policy." Thesis, 2020. https://doi.org/10.7916/d8-f5kb-9b94.
Повний текст джерелаLee, Chia-Hsiang, and 李佳翔. "A Comparison Study on Aspects of Energy Conservation and Carbon Reduction between Jin-hwa Community and Da-hu Community Sponsored by Environmental Protection Administration, Excutive Yuan, R. O. C. (Taiwan)." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/30860181631504063470.
Повний текст джерела嘉南藥理科技大學
環境工程與科學系暨研究所
99
The science of global warming has become a political and policy issue. In response to the international trend toward energy conservation and carbon reduction, the Environmental Protection Administration, Executive Yuan, R. O. C (Taiwan) has adopted energy conservation and carbon reduction into the implementation of environmental reforms. The purpose of this study was to investigate the different aspects concerning with energy conservation and carbon reduction between Jin-hwa community, South District of Tainan City, and Da-hu community, Hu-nei District of Kaohsiung City. The results indicated the positively environmental satisfaction questionnaire of Jin-hwa community was higher than it of Da-hu community due to the urban-rural gap and experiences in implementing environmental reforms. The positive approval of energy conservation and carbon reduction of Jin-hwa community was also higher than that of Da-hu community because of higher information flows and living standards. For both Jin-hwa and Da-hu communities, prior initiative to purchase energy conservation and carbon reduction devives was economic issue. Concerning advanced analysis of approval of purchasing energy conservation and carbon reduction devives, a higher consistence existed in Jin-hwa community. Based on the results of Five-Point Likert Items, the positive satisfaction questionnaire was considered as a reliable tool in the qualitative evaluation of satisfaction questionnaire. Key words: Community Empowerment, Energy Conservation and Carbon
Pletcher, Christopher J. "Energy Efficiency Programs at All Utilities: An Analysis of the Factors that Lead Electric Utilities to Invest in Energy Efficiency." 2013. https://scholarworks.umass.edu/theses/985.
Повний текст джерелаMthembu, Brian Mondli. "Urban conservation and urban spaces in post - 1994 South Africa : a case study in KwaDukuza." Diss., 2009. http://hdl.handle.net/10500/3068.
Повний текст джерелаGeography
M.A. (Geography)