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1
Abdulhay, Enas. "Une nouvelle méthode non-invasive d'estimation cycle à cycle du volume d'éjection cardiaque dans le signal de plethysmographie respiratoire par inductance : algorithme de "double décomposition empirique"." Université Joseph Fourier (Grenoble ; 1971-2015), 2009. http://www.theses.fr/2009GRE10220.
Повний текст джерелаАнотація:
L'objectif principal qui guide les développements en traitement du signal de cette thèse est la mise au point d'un outil qui s'inscrit dans une démarche de physiologie intégrative où, à chaque échelle, le modèle des signaux peut être différent On cherche ici à restreindre le jeu d'hypothèses a priori à un ensemble de règles physiologiques qui régissent les interactions entre functions physiologiques en l'absence d'hypothèses fonnelles et: mathématiques sur les signaux. Nous avons appliqué cette démarche au problème de la détection des ondes cardiaques et: de l' estimation cycle à cycle du volume d'éjection dans le signal RIP (Respiratoty Inductive Plethysmography). L'approche par décomposition empirique se prête particulièrement à notre logique. Nous proposons ici la première version d'un algorithme basé sur une double décomposition empirique du signal RIP. La méthode choisie et: les outils correspondants ont été testés sur deux types de données, d'une part des signaux simulés, d'autre part des signaux enregistrés sur volontaires sains. Notre objectif est donc aussi de mettre au point un modèle cardiorespiratoire pouvant servir d'outil de simulation des signaux ventilatoires, cardiaques et: de RIP avec la simulation de l'effet de chaque système sur l'autre. Les résultats montrent que la méthode proposée est adaptée à l'analyse du signal RIP et: à l' estimation du volume d'éjectionThe main objective that guides the signal processing approaches ofthis thesis is the development of a tool that oould be part of an integrative physiology approach where, at each scale, the model of signais may be different We seek here the restriction of asstnnptions a priori to a set: of rules goveming the physiological interactions between physiological functions in the absence of fannal and mathematical assumptions. We applied this approach to the problem of cardiac waves detection and estimation of cycle-to-cycle stroke volume in the RIP signal (Respiratory Inductive Plethysmography). The empirical decomposition approach seems to be particularly adapted to our logic. We propose here the first version of an algorithm based on RIP double decomposition. The method and its COITeSpül1ding tools have been tested on two types of data, simulated signais and real signais recorded at healthy volunteers. Our aim is also therefore to develop a cardio-respiratory model that can serve as a tool for ventilatory, cardiac and RIP signals simulation along with the simulation of the effect of each system on the other. The results show that the proposed method is suitable for RIP signal analysis and for stroke volume estimation
2
Goujon, Anne, C. Samir K, Markus Speringer, Bilal Barakat, Michaela Potancoková, Jakob Eder, Erich Striessnig, Ramon Bauer, and Wolfgang Lutz. "A harmonized dataset on global educational attainment between 1970 and 2060 - An analytical window into recent trends and future prospects in human capital development." Cambridge University Press (CUP), 2016. http://dx.doi.org/10.1017/dem.2016.10.
Повний текст джерелаАнотація:
We hereby present a dataset produced at the Wittgenstein Centre (WIC) containing
comprehensive time series on educational attainment and mean years of schooling (MYS). The
dataset is split by 5-year age groups and sex for 171 countries and covers the period between 1970
and 2010. It also contains projections of educational attainment to 2060 based on several scenarios
of demographic and educational development. The dataset is constructed around collected and
harmonized empirical census and survey data sets for the projection base year. The article present
the principles and methodology associated with the reconstruction and the projection, and how it
differs from several previous exercises. It also proposes a closer look at the diffusion of education
in world regions and how the existing gaps in terms of generations, gender, and geography - hence
called the 3Gs - have been evolving in the last forty years.
3
Allen, James Robert. "The structure, function and specificity of the Rhodobacter sphaeroides membrane-associated chemotaxis array." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:ce7de07a-dee6-471b-9f70-22714e617693.
Повний текст джерелаАнотація:
Bacterial chemotaxis is the movement of bacteria towards or away from chemical stimuli in the surrounding media. Bacteria respond to chemotactic signals through chemoreceptors which bind specific ligands and transduce signals through a modified two-component system. Typical chemoreceptors bind a ligand in the periplasm and signal across the inner membrane to the cytoplasmic chemosensory array through the inner membrane. Bacterial chemoreceptors must integrate multiple signals within an array of different receptor homologues to a single output. Chemoreceptors act cooperatively to allow a rapid signal spread across the array and large signal gain. Chemoreceptors adapt to a signal by chemical modification of their cytoplasmic domains in order respond across a wide range of effector concentrations. How bacterial chemoreceptors transduce signals through the inner membrane, integrate multiple effector responses, signal cooperatively and adapt to result in a single output signal is not currently fully known. In Rhodobacter sphaeroides, additional complexity arises from the presence of multiple homologues of various chemotactic components, notably the array scaffold protein CheW. Decoding this signalling mechanism and heterogeneity involved in this system is important in decoding the action of a biological system, with implications for biotechnology and synthetic biology. This study used the two model systems Escherichia coli and R. sphaeroides to analyse the mechanism of signalling through bacterial chemoreceptors. Rational design of activity-shifting chemoreceptor mutations was undertaken and these variants were analysed in phenotypic and fluorescence localisation studies. Molecular-dynamics simulations showed an increase in flexibility of chemoreceptors corresponds to a decrease in kinase output activity, which was determined by the computational tracking of bacteria free-swimming in media. Fluorescence recovery after photobleaching was used to show that this increase in flexibility results in a decrease in binding of receptors to their array scaffold proteins. A two-hybrid screen also suggested that inter-receptor affinity is also likely to decrease. These results show that signalling through chemoreceptors is likely through a mechanism involving the selective flexibility of chemoreceptor cytoplasmic domains. Analysis of R. sphaeroides chemoreceptors and CheW scaffold proteins in E. coli showed that it should be possible to design, from the bottom-up, a functional bacterial chemotaxis system in order to analyse individual protein specificity. Expression of R. sphaeroides MCPs in this E. coli system show the reconstitution of a chemotactic array, but not one capable of signalling specifically to proposed attractants. Results gained from this system suggest the R. sphaeroides CheW proteins are not homologous and their differential binding affinities may allow array activity 'fine-tuning'.
4
Seraku, Tohru. "Clefts, relatives, and language dynamics : the case of Japanese." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:0448acc3-dee6-4b1b-9020-95fd84895f24.
Повний текст джерелаАнотація:
The goal of this thesis is to develop a grammar model of Japanese within the framework of Dynamic Syntax (Cann et al. 2005, Kempson et al. 2001), with special reference to constructions that involve the nominaliser no: clefts and certain kinds of relatives. The more general theoretical position which it aims to defend is that an account of these constructions in terms of ‘language dynamics’ is preferable to other ‘static’ approaches currently available. What is here meant by ‘language dynamics,’ in a nutshell, is the time-linear processing of a string and attendant growth of an interpretation. First, I shall motivate, and articulate, an integrated account of the two types of no- nominalisation. These two classes are uniformly modelled as an outcome of incremental semantic-tree growth. The analysis is corroborated by naturally-occurring data extracted from the Corpus of Spontaneous Japanese (CSJ). Moreover, novel data with regard to coordination are accounted for without losing uniformity. Second, the composite entry of no and the topic marker wa handles the two types of clefts uniformly. This account fits well with the CSJ findings. New data concerning case-marking of foci are explained in terms of whether an unfixed relation in a semantic tree is resolvable in incremental processing. The account also solves the island-puzzle without abandoning uniformity. As a further confirmation, the analysis is extendable to stripping/sluicing, making some novel predictions on case-marking patterns. Third, the entry of no characterises free relatives and change relatives in a unitary manner. Furthermore, the composite entry of no and a case particle predicts a vast range of properties of head-internal relatives, including new data (e.g., negation in the relative clause, locality restriction on the Relevancy Condition). In sum, the thesis presents a realistic, integrated, and empirically preferable model of Japanese. Some consequences stand out. The various new data reported are beneficial theory-neutrally. Formal aspects of Dynamic Syntax are advanced. The insights brought by a language dynamics account challenge the standard, static conception of grammar.
5
Huang, Ruobing. "Delving deep into fetal neurosonography : an image analysis approach." Thesis, University of Oxford, 2017. http://ora.ox.ac.uk/objects/uuid:63aec035-dee2-40d4-9e00-ee1674a52494.
Повний текст джерелаАнотація:
Ultrasound screening has been used for decades as the main modality to examine fetal brain development and to diagnose possible anomalies. However, basic clinical ultrasound examination of the fetal head is limited to axial planes of the brain and linear measurements which may have restrained its potential and efficacy. The recent introduction of three-dimensional (3D) ultrasound provides the opportunity to navigate to different anatomical planes and to evaluate structures in 3D within the developing brain. Regardless of acquisition methods, interpreting 2D/3D ultrasound fetal brain images require considerable skill and time. In this thesis, a series of automatic image analysis algorithms are proposed that exploit the rich sonographic patterns captured by the scans and help to simplify clinical examination. The original contributions include: 1. An original skull detection method for 3D ultrasound images, which achieves mean accuracy of 2.2 ± 1.6 mm compared to the ground truth (GT). In addition, the algorithm is utilised for accurate automated measurement of essential biometry in standard examinations: biparietal diameter (mean accuracy: 2.1 ± 1.4 mm) and head circumference (mean accuracy: 4.5 ± 3.7 mm). 2. A plane detection algorithm. It automatically extracts mid-sagittal plane that provides visualization of midline structures, which are crucial to assess central nervous system malformations. The automated planes are in accordance with manual ones (within 3.0 ± 3.5°). 3. A general segmentation framework for delineating fetal brain structures in 2D images. The automatically generated predictions are found to be agreed with the manual delineations (mean dice-similarity coefficient: 0.79 ± 0.07). As a by-product, the algorithm generated automated biometry. The results might be further utilized for morphological evaluation in future research. 4. An efficient localization model that is able to pinpoint the 3D locations of five key brain structures that are examined in a routine clinical examination. The predictions correlate with the ground truth: the average centre deviation is 1.8 ± 1.4 mm, and the size difference between them is 1.9 ± 1.5 mm. The application of this model may greatly reduce the time required for routine examination in clinical practice. 5. A 3D affine registration pipeline. Leveraging the power of convolutional neural networks, the model takes raw 3D brain images as input and geometrically transforms fetal brains into a unified coordinate system (proposed as a Fetal Brain Talairach system). The integration of these algorithms into computer-assisted analysis tools may greatly reduce the time and effort to evaluate 3D fetal neurosonography for clinicians. Furthermore, they will assist understanding of fetal brain maturation by distilling 2D/3D information directly from the uterus.
6
Cusack, Martin. "The role of DNA methylation on transcription factor occupancy and transcriptional activity." Thesis, University of Oxford, 2017. https://ora.ox.ac.uk/objects/uuid:7d0b7fe7-dee1-433f-8656-c9ee2a216d48.
Повний текст джерелаАнотація:
DNA methylation is an epigenetic mark that is deposited throughout the genome of mammals and plays an important role in the maintenance of transcriptionally repressive states across cell divisions. There are two major mechanisms by which DNA methylation has been proposed to act: one involves the recognition of the mark by protein complexes containing histone deacetylases (HDACs) that can remodel the local chromatin. Alternatively, methylation has been suggested to directly affect the interaction between transcription factors and their cognate binding sequence. The aim of this research was to determine the contributions of these two mechanisms in cells. The importance of HDAC activity in mediating DNA methylation-dependent transcriptional repression was assessed by comparing the genes and retrotransposons that are upregulated in response to DNA methylation loss or the disruption of HDAC activity. To this purpose, we performed whole-genome transcriptional analysis in wild type and DNA methylation-deficient mouse embryonic stem cells (DNMT.TKO mESCs) in the presence and absence of the HDAC inhibitor trichostatin A. Our data suggests that there are few genes whose repression is solely dependent on the recruitment of HDACs by DNA methylation in mESCs. Rather it appears that DNA methylation and HDAC-mediated silencing represent two independent layers of repression that converge at certain transcriptional elements. To investigate the contribution of DNA methylation on the genome-wide occupancy of transcription factors, we compared the global chromatin accessibility landscape and the binding profile of candidate transcription factors in the absence or presence of DNA methylation. We found that loss of DNA methylation associates with localised gains in accessibility, some of which can be linked to the novel binding of transcription factors such as GABPA, MAX, NRF1 and YY1. Altogether, our results present new insights into the interplay between DNA methylation and histone deacetylation and their impact on the localisation of transcription factors from different families.
7
Hervert, John Joseph. "Mule deer use of water developments in Arizona." Thesis, The University of Arizona, 1985. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1985_270_sip1_w.pdf&type=application/pdf.
Повний текст джерела
8
Ebersole, Regina L. "Efficacy of a controlled hunt for managing white-tailed deer on Fair Hill Natural Resource Management Area, Cecil County, Maryland." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 66 p, 2007. http://proquest.umi.com/pqdweb?did=1253509781&sid=1&Fmt=2&clientId=8331&RQT=309&VName=PQD.
Повний текст джерела
9
Merkt, Juan R. "Social structure of Andean deer (Hippocamelus antisensis) in southern Peru." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/24864.
Повний текст джерелаАнотація:
The taruca (Hippocamelus antisensis) is the only deer species found permanently in rugged mountainous habitat above the tree line. I studied the social organization of this deer in relation to its reproductive cycle and habitat use in the high Andes of southern Peru. Tarucas bred seasonally. Most fawns were observed towards the end of the rainy season between February and April. Mating was most common in June, during the dry season, and antler-shedding in males occurred in September/October, at the onset of the rainy season. The deer lived in social groups and, unlike most seasonally breeding cervids, formed large mixed-sex groups nearly all year. During the birth season, however, all pregnant females segregated to form female associations. At this time, adult males were found equally in mixed-sex groups or in small all-male groups. These groups differed in their habitat use. Female groups used areas of higher elevation, steeper slopes, and greater rock-cover than either male or mixed-sex groups. I suggest that selection of more rugged and concealed habitats by lactating females is primarily an antipredator strategy to reduce risk of predation on fawns. Tarucas are compared with other social Cervidae and with their ecological counterpart: the mountain Caprinae. The social structure of Hippocamelus resembles that of wild goats (Capra spp) and other Caprinae of similar ecology but it differs from that of wild sheep (Ovis spp).Science, Faculty of
Zoology, Department of
Graduate
10
Straube, Nicolas. "Deep divergence." Diss., Ludwig-Maximilians-Universität München, 2011. http://nbn-resolving.de/urn:nbn:de:bvb:19-138186.
Повний текст джерела
11
Joseph, Caberbe. "DEEP WITHIN." Master's thesis, University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2794.
Повний текст джерелаАнотація:
As a contemporary photographer, I focus most on light and color to bring out the uniqueness of my images. Photography is about lighting and I manipulate lights to raise questions in my viewers. Manipulating light is my way of being curious about how it may change mood physically and emotionally. Inspired by classical paintings, I have developed a body of photographs that can be admired by anyone. Although the main focus of my work is light and color, this body of work is also intended to empower those with little confidence in themselves and those who have been rejected, abused, or mistrusted.M.F.A.
Department of Art
Arts and Humanities
Studio Art and the Computer MFA
12
Peterson, Grant. "Deep time /." abstract, 2008. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1455664.
Повний текст джерелаАнотація:
Thesis (M.A.)--University of Nevada, Reno, 2008."May, 2008." Library also has microfilm. Ann Arbor, Mich. : ProQuest Information and Learning Company, [2009]. 1 microfilm reel ; 35 mm. Online version available on the World Wide Web.
13
Peralta, Yaddyra. "Deep Waters." FIU Digital Commons, 2012. http://digitalcommons.fiu.edu/etd/622.
Повний текст джерелаАнотація:
The purpose of this creative thesis was to explore the state of exile via the use of the contemporary lyric poem. Written primarily in free verse, with some poems written in the traditional forms of the sonnet, haiku and senryu, the thesis explored exile and its variant themes of colonization, assimilation, familial history, cultural and personal myth. The result was the discovery that the lyric poem is an ideal, productive and fluid medium through which a poet can consider and encounter the liminality of exile identity.
14
Traxl, Dominik. "Deep graphs." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2017. http://dx.doi.org/10.18452/17785.
Повний текст джерелаАнотація:
Netzwerk Theorie hat sich als besonders zweckdienlich in der Darstellung von Systemen herausgestellt. Jedoch fehlen in der Netzwerkdarstellung von Systemen noch immer essentielle Bausteine um diese generell zur Datenanalyse heranzuziehen zu können. Allen voran fehlt es an einer expliziten Assoziation von Informationen mit den Knoten und Kanten eines Netzwerks und einer schlüssigen Darstellung von Gruppen von Knoten und deren Relationen auf verschiedenen Skalen. Das Hauptaugenmerk dieser Dissertation ist der Einbindung dieser Bausteine in eine verallgemeinerte Rahmenstruktur gewidmet. Diese Rahmenstruktur - Deep Graphs - ist in der Lage als Bindeglied zwischen einer vereinheitlichten und generalisierten Netzwerkdarstellung von Systemen und den Methoden der Statistik und des maschinellen Lernens zu fungieren (Software: https://github.com/deepgraph/deepgraph). Anwendungen meiner Rahmenstruktur werden dargestellt. Ich konstruiere einen Regenfall Deep Graph und analysiere raumzeitliche Extrem-Regenfallcluster. Auf Grundlage dieses Graphs liefere ich einen statistischen Beleg, dass die Größenverteilung dieser Cluster einem exponentiell gedämpften Potenzgesetz folgt. Mit Hilfe eines generativen Sturm-Modells zeige ich, dass die exponentielle Dämpfung der beobachteten Größenverteilung durch das Vorhandensein von Landmasse auf unserem Planeten zustande kommen könnte. Dann verknüpfe ich zwei hochauflösende Satelliten-Produkte um raumzeitliche Cluster von Feuer-betroffenen Gebieten im brasilianischen Amazonas zu identifizieren und deren Brandeigenschaften zu charakterisieren. Zuletzt untersuche ich den Einfluss von weißem Rauschen und der globalen Kopplungsstärke auf die maximale Synchronisierbarkeit von Oszillatoren-Netzwerken für eine Vielzahl von Oszillatoren-Modellen, welche durch ein breites Spektrum an Netzwerktopologien gekoppelt sind. Ich finde ein allgemeingültiges sigmoidales Skalierungsverhalten, und validiere dieses mit einem geeignetem Regressionsmodell.Network theory has proven to be a powerful instrument in the representation of complex systems. Yet, even in its latest and most general form (i.e., multilayer networks), it is still lacking essential qualities to serve as a general data analysis framework. These include, most importantly, an explicit association of information with the nodes and edges of a network, and a conclusive representation of groups of nodes and their respective interrelations on different scales. The implementation of these qualities into a generalized framework is the primary contribution of this dissertation. By doing so, I show how my framework - deep graphs - is capable of acting as a go-between, joining a unified and generalized network representation of systems with the tools and methods developed in statistics and machine learning. A software package accompanies this dissertation, see https://github.com/deepgraph/deepgraph. A number of applications of my framework are demonstrated. I construct a rainfall deep graph and conduct an analysis of spatio-temporal extreme rainfall clusters. Based on the constructed deep graph, I provide statistical evidence that the size distribution of these clusters is best approximated by an exponentially truncated powerlaw. By means of a generative storm-track model, I argue that the exponential truncation of the observed distribution could be caused by the presence of land masses. Then, I combine two high-resolution satellite products to identify spatio-temporal clusters of fire-affected areas in the Brazilian Amazon and characterize their land use specific burning conditions. Finally, I investigate the effects of white noise and global coupling strength on the maximum degree of synchronization for a variety of oscillator models coupled according to a broad spectrum of network topologies. I find a general sigmoidal scaling and validate it with a suitable regression model.
15
Piekarski, James. "Te Deum." Thesis, University of North Texas, 1994. https://digital.library.unt.edu/ark:/67531/metadc935762/.
Повний текст джерелаАнотація:
Te Deum is a single movement work for chorus and orchestra. It employs an ensemble comprising the complement of string, woodwind, and brass instruments typically available in a small symphony orchestra with an expanded percussion section. The choral forces are in proportional relation to the instrumental forces are in proportional relation to the instrumental forces and it is sung in the original Latin. The intended performance time is approximately 18 minutes. Temporal aspects of the work are characterized by three contrasting sections. The slow and solemn opening section is given to long stretches of silence sparsely punctuated by low drums. The remainder of the work is texturally more dense and employs a much quicker tempo. A steady core pulse is also a key feature, with attention given to avoiding any regular metrical implications by use offset accents, non-consecutive identical phrase lengths, and a slow harmonic rhythm.
16
Jönsson, Jennifer Annie Patricia. "Deep Impression." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-22025.
Повний текст джерелаАнотація:
The scope of this thesis is to reveal the hidden dimensions of fashion. With the aim to stress the worth of participation and the individual experience of fashion. This work is questioning what we see, and later what is actually there. Through a thorough investigation of the knit technique the relationship of loop and thread (pause and activity) is the focus of this paper. Enhancing the significant qualities of the knitted technique, where material and shape is born simultaneously, the result presented holds a variety of results. With the aim to discuss multiple dimensions this knit investigation is presented in a fashion context. Styled with technical sportswear this work is challenging knitwear -as well as sportswear. By clashing sports connotated materials with the knitted wool, both fields are expanded and new options and expression are presented. The motive of this investigation is to further state the worth of fashion. To create a space for the experience of fashion, stating the various result that is not depending on the presentation on body. This work questions the pre-set truths and conventions of what fashion could be, and our ability to judge what is presented for us.
17
Wood, Rebecca. "Deep Surface." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1427899904.
Повний текст джерела
18
Krotevych, K. "Deep web." Thesis, Sumy State University, 2015. http://essuir.sumdu.edu.ua/handle/123456789/40487.
Повний текст джерелаАнотація:
We got accustomed to the fact that all the information on the
Internet instantly could be found by search engines. They know
everything about everyone. But is it really so? It turns out there are
areas in WWW, neither Google nor Yandex have access. Moreover,
according to most experts, their size is hundreds of times greater than
the size of the rest of the internet. This secret web called deep web.
19
Dan-Jumbo, F. G. "Material and structural properties of a novel Aer-Tech material." Thesis, Coventry University, 2015. http://curve.coventry.ac.uk/open/items/699ca3a1-deec-4549-b907-0e06bcdad83f/1.
Повний текст джерелаАнотація:
This study critically investigates the material and structural behaviour of Aer-Tech material. Aer- Tech material is composed of 10% by volume of foam mechanically entrapped in a plastic mortar. The research study showed that the density of the material mix controls all other properties such as fresh state properties, mechanical properties, functional properties and acoustic properties. Appreciably, the research had confirmed that Aer-Tech material despite being classified as a light weight material had given high compressive strength of about 33.91N/mm2. The compressive strength characteristics of Aer-Tech material make the material a potential cost effective construction material, comparable to conventional concrete. The material also showed through this study that it is a structural effective material with its singly reinforced beam giving ultimate moment of about 38.7KN. In addition, the Aer-Tech material is seen as a very good ductile material since, the singly reinforced beam in tension showed visible signs of diagonal vertical cracks long before impending rapture. Consequently, the SEM test and the neural network model predictions, carried out had showed how billions of closely tight air cells are evenly distributed within the Aer-Tech void system as well as the close prediction of NN model for compressive strength and density are same with the experimental results of compressive strength and density. The result shows that the Aer-Tech NN-model can simulate inputs data and predicts their corresponding output data.
20
Hu, Qinglin. "Temporal variation and inter-relationship of movement and resource selection of red deer (Cervus elaphus) with respect to climate : a case study : a thesis submitted in partial fulfillment of the requirements for the degree of Master of Science (Environmental Science) at the University of Canterbury /." Thesis, University of Canterbury. Environmental Science, 2006. http://hdl.handle.net/10092/1299.
Повний текст джерелаАнотація:
Red deer (Cervus elaphus) is one of at least 31 herbivorous exotic mammals existing in New Zealand. All of these species have the potential to affect environmentral and production values. Reducing their impacts on their values, strengthening effective managements are important issues to a variety of agencies within New Zealand including the Department of Conservation (DOC), Ministry of Agriculture and Forestry (MAF), local and regional governments. This research studied animal movement pattern and habitat use of 2 GPScollared red deer in the Canterbury high country and found (1) deer movement was affected by climatic variables such as rainfall and temperature, which had positive or negative effect on it, and had seasonal variation; (2) deer had dominant landcover use categories, depending on climate, season, and individual characteristics (3) deer had different movement patterns in terms of hourly distances. The purpose of the study is to draw accurate inferences from spatially explicit data for biosecurity managers and policy-makers through: (1) using global positioning system (GPS) as a tool to elucidate the application of GPS on red deer in wildlife management; (2) Animal Movement Analysis Arc View® 3.2 Extension under Arc View® Geographic Information System (GIS); (3) Animal movement analysis which used Generalized Additive Models (GAMs) to show how the movement of red deer was affected by different periods of time, seasons months and climatic variables (for example, rainfall and temperature).
21
Holtfreter, Robert W. Ditchkoff Stephen S. "Spatial ecology of male white-tailed deer in the Crosstimbers and Prairies ecoregion." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/SUMMER/Forestry_and_Wildlife_Sciences/Thesis/Holtfreter_Robert_20.pdf.
Повний текст джерела
22
Flesch, Jason Stefan. "Nutritional requirements of pregnant and lactating fallow deer (Dama dama) /." View thesis View thesis View thesis, 2001. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030506.152207/index.html.
Повний текст джерелаАнотація:
Thesis (Ph.D.) -- University of Western Sydney, Hawkesbury, 2001.A thesis submitted in fulfillment of the requirements for the degree of Doctor of Philosophy, University of Western Sydney, Hawkesbury, Faculty of Environmental Management and Agriculture. Bibliography : leaves 252-280.
23
Flesch, Jason S., University of Western Sydney, of Science Technology and Environment College, and School of Environment and Agriculture. "Nutritional requirements of pregnant and lactating pregnant and lactating fallow deer (Dama dama)." THESIS_CSTE_EAG_Flesch_J.xml, 2000. http://handle.uws.edu.au:8081/1959.7/562.
Повний текст джерелаАнотація:
This thesis describes a number of experiments undertaken to assess the nutritional requirements of pregnant and lactating fallow does with the aim of enhancing production and Quality Assurance in the Australian Deer Industry.Areas of study include determination of metabolisable energy intake of farmed fallow deer does of two genotypes throughout pregnancy and lactation, metabolisable energy intake of fallow deer fawns from 12 to 20 weeks of age and the effects of restricted maternal nutrition on foetal and placental development at different stages of gestation.In conjunction with nutritional adequacy, a body condition scoring system based on ante-mortem and post-mortem descriptors was developed for fallow deer. The results of this research make possible the precise strategic feeding of fallow deer breeding stock, which should lead to more consistent reproductive performance and higher quality slaughter animals. Furthermore, use of strategic feeding in conjunction with BCS systems will lead to better resource management and profitability, as farmers consistently produce animals to specificationDoctor of Philosophy (PhD)
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Deeg, Kristina Anne Lore [Verfasser], Christian [Akademischer Betreuer] Lersch, Roland M. [Gutachter] Schmid, and Christian [Gutachter] Lersch. "Stellenwert der Sonografie bei dem Verlauf von Morbus Crohn / Kristina Anne Lore Deeg ; Gutachter: Roland M. Schmid, Christian Lersch ; Betreuer: Christian Lersch." München : Universitätsbibliothek der TU München, 2018. http://d-nb.info/1158893469/34.
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Dunlop, J. S., R. J. McLure, A. D. Biggs, J. E. Geach, M. J. Michałowski, R. J. Ivison, W. Rujopakarn, et al. "A deep ALMA image of the Hubble Ultra Deep Field." OXFORD UNIV PRESS, 2017. http://hdl.handle.net/10150/623849.
Повний текст джерелаАнотація:
We present the results of the first, deep Atacama Large Millimeter Array ( ALMA) imaging covering the full similar or equal to 4.5 arcmin(2) of the Hubble Ultra Deep Field ( HUDF) imaged with Wide Field Camera 3/IR on HST. Using a 45-pointing mosaic, we have obtained a homogeneous 1.3-mm image reaching sigma 1.3 similar or equal to 35 mu Jy, at a resolution of similar or equal to 0.7 arcsec. From an initial list of similar or equal to 50 > 3.5 sigma peaks, a rigorous analysis confirms 16 sources with S-1.3 > 120 mu Jy. All of these have secure galaxy counterparts with robust redshifts (< z > = 2.15). Due to the unparalleled supporting data, the physical properties of the ALMA sources are well constrained, including their stellar masses ( M-*) and UV+FIR star formation rates ( SFR). Our results show that stellar mass is the best predictor of SFR in the high-redshift Universe; indeed at z = 2 our ALMA sample contains seven of the nine galaxies in the HUDF withM(*) = 2 x 10(10)M circle dot, and we detect only one galaxy at z > 3.5, reflecting the rapid drop-off of high-mass galaxies with increasing redshift. The detections, coupled with stacking, allow us to probe the redshift/mass distribution of the 1.3-mm background down to S1.3 similar or equal to 10 mu Jy. We find strong evidence for a steep star-forming `main sequence' at z similar or equal to 2, with SFR. M* and a mean specific SFR similar or equal to 2.2 Gyr(-1). Moreover, we find that similar or equal to 85 per cent of total star formation at z similar or equal to 2 is enshrouded in dust, with similar or equal to 65 per cent of all star formation at this epoch occurring in high-mass galaxies ( M-* > 2 x 10(10)M circle dot), for which the average obscured: unobscured SF ratio is similar or equal to 200. Finally, we revisit the cosmic evolution of SFR density; we find this peaks at z similar or equal to 2.5, and that the star-forming Universe transits from primarily unobscured to primarily obscured at z similar or equal to 4.
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Backstad, Sebastian. "Federated Averaging Deep Q-NetworkA Distributed Deep Reinforcement Learning Algorithm." Thesis, Umeå universitet, Institutionen för datavetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-149637.
Повний текст джерелаАнотація:
In the telecom sector, there is a huge amount of rich data generated every day. This trend will increase with the launch of 5G networks. Telco companies are interested in analyzing their data to shape and improve their core businesses. However, there can be a number of limiting factors that prevents them from logging data to central data centers for analysis. Some examples include data privacy, data transfer, network latency etc. In this work, we present a distributed Deep Reinforcement Learning (DRL) method called Federated Averaging Deep Q-Network (FADQN), that employs a distributed hierarchical reinforcement learning architecture. It utilizes gradient averaging to decrease communication cost. Privacy concerns are also satisfied by training the agent locally and only sending aggregated information to the centralized server. We introduce two versions of FADQN: synchronous and asynchronous. Results on the cart-pole environment show 80 times reduction in communication without any significant loss in performance. Additionally, in case of asynchronous approach, we see a great improvement in convergence.
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Manna, Amin(Amin A. ). "Deep linguistic lensing." Thesis, Massachusetts Institute of Technology, 2018. https://hdl.handle.net/1721.1/121630.
Повний текст джерелаАнотація:
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2018
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 81-84).
Language models and semantic word embeddings have become ubiquitous as sources for machine learning features in a wide range of predictive tasks and real-world applications. We argue that language models trained on a corpus of text can learn the linguistic biases implicit in that corpus. We discuss linguistic biases, or differences in identity and perspective that account for the variation in language use from one speaker to another. We then describe methods to intentionally capture "linguistic lenses": computational representations of these perspectives. We show how the captured lenses can be used to guide machine learning models during training. We define a number of lenses for author-to-author similarity and word-to-word interchangeability. We demonstrate how lenses can be used during training time to imbue language models with perspectives about writing style, or to create lensed language models that learn less linguistic gender bias than their un-lensed counterparts.
by Amin Manna.
M. Eng.
M.Eng. Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science
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Carter, Justin Ryan. "Assume Deer Dead." Bowling Green State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1395065120.
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Dufourq, Emmanuel. "Evolutionary deep learning." Doctoral thesis, Faculty of Science, 2019. http://hdl.handle.net/11427/30357.
Повний текст джерелаАнотація:
The primary objective of this thesis is to investigate whether evolutionary concepts can improve the performance, speed and convenience of algorithms in various active areas of machine learning research. Deep neural networks are exhibiting an explosion in the number of parameters that need to be trained, as well as the number of permutations of possible network architectures and hyper-parameters. There is little guidance on how to choose these and brute-force experimentation is prohibitively time consuming. We show that evolutionary algorithms can help tame this explosion of freedom, by developing an algorithm that robustly evolves near optimal deep neural network architectures and hyper-parameters across a wide range of image and sentiment classification problems. We further develop an algorithm that automatically determines whether a given data science problem is of classification or regression type, successfully choosing the correct problem type with more than 95% accuracy. Together these algorithms show that a great deal of the current "art" in the design of deep learning networks - and in the job of the data scientist - can be automated. Having discussed the general problem of optimising deep learning networks the thesis moves on to a specific application: the automated extraction of human sentiment from text and images of human faces. Our results reveal that our approach is able to outperform several public and/or commercial text sentiment analysis algorithms using an evolutionary algorithm that learned to encode and extend sentiment lexicons. A second analysis looked at using evolutionary algorithms to estimate text sentiment while simultaneously compressing text data. An extensive analysis of twelve sentiment datasets reveal that accurate compression is possible with 3.3% loss in classification accuracy even with 75% compression of text size, which is useful in environments where data volumes are a problem. Finally, the thesis presents improvements to automated sentiment analysis of human faces to identify emotion, an area where there has been a tremendous amount of progress using convolutional neural networks. We provide a comprehensive critique of past work, highlight recommendations and list some open, unanswered questions in facial expression recognition using convolutional neural networks. One serious challenge when implementing such networks for facial expression recognition is the large number of trainable parameters which results in long training times. We propose a novel method based on evolutionary algorithms, to reduce the number of trainable parameters whilst simultaneously retaining classification performance, and in some cases achieving superior performance. We are robustly able to reduce the number of parameters on average by 95% with no loss in classification accuracy. Overall our analyses show that evolutionary algorithms are a valuable addition to machine learning in the deep learning era: automating, compressing and/or improving results significantly, depending on the desired goal.
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Carvalho, Micael. "Deep representation spaces." Electronic Thesis or Diss., Sorbonne université, 2018. http://www.theses.fr/2018SORUS292.
Повний текст джерелаАнотація:
Ces dernières années, les techniques d’apprentissage profond ont fondamentalement transformé l'état de l'art de nombreuses applications de l'apprentissage automatique, devenant la nouvelle approche standard pour plusieurs d’entre elles. Les architectures provenant de ces techniques ont été utilisées pour l'apprentissage par transfert, ce qui a élargi la puissance des modèles profonds à des tâches qui ne disposaient pas de suffisamment de données pour les entraîner à partir de zéro. Le sujet d'étude de cette thèse couvre les espaces de représentation créés par les architectures profondes. Dans un premier temps, nous étudions les propriétés de leurs espaces, en prêtant un intérêt particulier à la redondance des dimensions et la précision numérique de leurs représentations. Nos résultats démontrent un fort degré de robustesse, pointant vers des schémas de compression simples et puissants. Ensuite, nous nous concentrons sur le l'affinement de ces représentations. Nous choisissons d'adopter un problème multi-tâches intermodal et de concevoir une fonction de coût capable de tirer parti des données de plusieurs modalités, tout en tenant compte des différentes tâches associées au même ensemble de données. Afin d'équilibrer correctement ces coûts, nous développons également un nouveau processus d'échantillonnage qui ne prend en compte que des exemples contribuant à la phase d'apprentissage, c'est-à-dire ceux ayant un coût positif. Enfin, nous testons notre approche sur un ensemble de données à grande échelle de recettes de cuisine et d'images associées. Notre méthode améliore de 5 fois l'état de l'art sur cette tâche, et nous montrons que l'aspect multitâche de notre approche favorise l'organisation sémantique de l'espace de représentation, lui permettant d'effectuer des sous-tâches jamais vues pendant l'entraînement, comme l'exclusion et la sélection d’ingrédients. Les résultats que nous présentons dans cette thèse ouvrent de nombreuses possibilités, y compris la compression de caractéristiques pour les applications distantes, l'apprentissage multi-modal et multitâche robuste et l'affinement de l'espace des caractéristiques. Pour l'application dans le contexte de la cuisine, beaucoup de nos résultats sont directement applicables dans une situation réelle, en particulier pour la détection d'allergènes, la recherche de recettes alternatives en raison de restrictions alimentaires et la planification de menusIn recent years, Deep Learning techniques have swept the state-of-the-art of many applications of Machine Learning, becoming the new standard approach for them. The architectures issued from these techniques have been used for transfer learning, which extended the power of deep models to tasks that did not have enough data to fully train them from scratch. This thesis' subject of study is the representation spaces created by deep architectures. First, we study properties inherent to them, with particular interest in dimensionality redundancy and precision of their features. Our findings reveal a strong degree of robustness, pointing the path to simple and powerful compression schemes. Then, we focus on refining these representations. We choose to adopt a cross-modal multi-task problem, and design a loss function capable of taking advantage of data coming from multiple modalities, while also taking into account different tasks associated to the same dataset. In order to correctly balance these losses, we also we develop a new sampling scheme that only takes into account examples contributing to the learning phase, i.e. those having a positive loss. Finally, we test our approach in a large-scale dataset of cooking recipes and associated pictures. Our method achieves a 5-fold improvement over the state-of-the-art, and we show that the multi-task aspect of our approach promotes a semantically meaningful organization of the representation space, allowing it to perform subtasks never seen during training, like ingredient exclusion and selection. The results we present in this thesis open many possibilities, including feature compression for remote applications, robust multi-modal and multi-task learning, and feature space refinement. For the cooking application, in particular, many of our findings are directly applicable in a real-world context, especially for the detection of allergens, finding alternative recipes due to dietary restrictions, and menu planning
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Braden, Anthony Wayne. "Evaluation of the effects of a highway improvement project on Key deer." Thesis, Texas A&M University, 2005. http://hdl.handle.net/1969.1/4277.
Повний текст джерелаАнотація:
Deer-vehicle collisions (DVCs) along a 5.6-km segment of United States Highway 1 (US 1) on Big Pine Key (BPK), Florida responsible for approximately 26% of endangered Florida Key deer (Odocoileus virginianus clavium) annual mortalities. The Florida Department of Transportation (FDOT) constructed a 2.6-km long system of fencing, 2 underpasses, and 4 experimental deer guards to address DVCs along a portion of the US 1 roadway in 2001âÂÂ2002. I evaluated the effectiveness of the project in reducing Key deer mortality by comparing (1) survival of radio-collared deer, (2) deer-vehicle collisions on US 1, and (3) determining the ability of deer to access the fenced segment. I found no significant difference in male or female survival. Key deer-vehicle collisions were reduced by 83âÂÂ92% inside the fenced segment. However, overall US 1 Key deer-vehicle collisions did not change. Key deer entry into the fenced segment was minimized to 8 deer during the first-year resulting in 2 deer mortalities. I also assessed the potential impacts of the US 1 corridor project to Key deer movements by comparing (1) radio-collared Key deer annual ranges (2) radio-collared deer corridor movements, and (3) assessing Key deer underpass and corridor use. Female and male ranges and core areas did not change (P > 0.05). Deer movements within the US 1 corridor were comparable pre- (6 of 23 radio-collared deer crossed the corridor) and post-project (4 of 16). Infrared-triggered camera data indicate underpass movements increased over time. Collectively, post-project telemetry and camera data indicates US 1 highway improvements have not restricted Key deer movements. Hourly Key deer movement and US 1 traffic patterns were compared to annual US 1 DVCs. Hourly deer movements showed a positive correlation (P = 0.012, r = 0.505) to hourly DVCs for the full circadian period. Hourly US 1 traffic showed a significant positive relationship (P = 0.012, r = 0.787) with DVCs only during the night period. Evaluation of hourly deer movements and hourly traffic volume on US 1 found hourly DVCs to be the result of a combination between both variables.
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Cruickshank, Hilary Stuart. "Prey selection and kill rates of cougars in northeastern Washington." Connect to this title online, 2004. http://www.dissertations.wsu.edu/Thesis/Summer2004/h%5Fcruickshank%5F081604.pdf.
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Marshal, Jason Paul. "Interactions of mule deer, vegetation, and water in the Sonoran Desert." Diss., The University of Arizona, 2005. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_2005_031_sip1_w.pdf&type=application/pdf.
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Ordway, Leonard L. "HABITAT USE BY DESERT MULE DEER (ASPECT, ELEVATION, SLOPE, ARIZONA)." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/291232.
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Keehner, Jonathan R. "Effects of reproductive status of mountain lions on prey selection of mule deer and white-tailed deer in northeastern Washington." Pullman, Wash. : Washington State University, 2009. http://www.dissertations.wsu.edu/Thesis/Summer2009/j_keehner_052609.pdf.
Повний текст джерелаАнотація:
Thesis (M.S. in natural resource sciences)--Washington State University, August 2009.Title from PDF title page (viewed on July 21, 2009). "Department of Natural Resource Sciences." Includes bibliographical references (p. 18-21).
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Oka, Gusti Made. "Factors affecting the management of Muntjac Deer (Muntiacus muntjak) in Bali Barat National Park, Indonesia /." Richmond, N.S.W. : Faculty of Environmental Management and Agriculture, University of Western Sydney, Hawkesbury, 1998. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030805.131126/index.html.
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Zinsou, Amour Christian. "Le memorandum d'entente d'Abuja et le renforcement de la sécurité des transports maritimes en Afrique." Nantes, 2010. http://archive.bu.univ-nantes.fr/pollux/show.action?id=6c0b53ba-deeb-40fc-bae2-36177266ecb7.
Повний текст джерелаАнотація:
Le Mémorandum d’entente d’Abuja pour le contrôle des navires par l’Etat du port dans la région de l’Afrique de l’Ouest et du Centre » a été signé le 22 octobre 1999 à la 3ème réunion sur la coopération en matière de contrôle des navires par l’Etat du port. Sur 19 Administrations maritimes ayant participé aux deux réunions préparatoires, 16 représentants des Administrations maritimes ont signé ce qu’il convient d’appeler désormais l’acte de naissance de la grande concertation de la sous-région en matière de contrôle des navires par l’Etat du port. La naissance du MOU d’Abuja consacre en Afrique les compétences de l’Etat du port en matière de contrôle des navires étrangers. C’est le développement du droit international qui a favorisé cette évolution qui tempère le principe séculaire de la loi du pavillon auquel le navire obéissait depuis lors et qui n’a pas toujours bien fonctionné. Le MOU d’Abuja institue donc clairement le « port state control » qui consiste à en une visite à bord du navire en vue de vérifier la validité des certificats et autres documents appropriés aux fins du Mémorandum, ainsi que l’état du navire, de son équipement et son équipage et les conditions de vie et de travail de l’équipage. Il vise également la protection de l’environnement par le respect des Conventions internationales. Ayant encore la nature juridique de « soft law », le MOU d’Abuja rencontre de nombreux obstacles pour sa mise en œuvre afin de réduire et d’éliminer les navires sous normes qui fréquentent les ports africains. Même s’il est un accord pertinent par sa référence aux Conventions internationales en matière de sécurité et aussi un instrument de communautarisation du droit de la sécurité maritime en Afrique, il reste néanmoins faiblement appliqué. Ne gagnerait-il pas à être communautarisé comme l’a été celui de Paris dans une politique commune africaine de la sécurité des transports maritimes pour son efficacité ?The Memorandum of understanding on Port State control for the West and Central African region has been signed on October, 22nd 1999 during the 3rd meeting on the co-operation as regards control of the ships by the Port state. On 19 maritime Administrations having taken part in the two preparatory meetings, 16 representatives of the maritime Administrations signed what it is advisable to call from now on the birth certificate of the great dialogue of the under-area as regards control of the ships by the Port state. The birth of the Memorandum of Understanding of Abuja devotes in Africa competences of the Port state as regards control of the foreign ships. It is the development of the international law which supported this evolution which moderates the secular principle of the law of the house which the ship since then obeyed and which did not function always well. The MOU of Abuja thus institutes clearly the “port state control” which consists with of a visit on board a ship in order to check the validity of the certificates and other documents relevant to the purpose of the Memorandum, as well as the condition of the ship, its equipment and crew, as well as the living and working conditions of the crew. It also aims environmental protection by the respect of International conventions. Having still the legal nature of “soft law”, the MOU of Abuja meets many obstacles for its implementation in order to reduce and to eliminate the ships under standards which attend the African ports. Even if it is a relevant agreement by its reference to International conventions as regards safety and also an instrument of communautarization of the right of the maritime safety in Africa, there slightly remains nevertheless applied. Wouldn't it gain with being communautarized like was to it that of Paris in a African common policy of the safety of the maritime transport for its effectiveness?
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Brophy, Jessica. "No Longer an Island: A Critical Discourse Analysis of the Deer Isle-Sedgwick Bridge." Fogler Library, University of Maine, 2006. http://www.library.umaine.edu/theses/pdf/BrophyJX2006.pdf.
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Shafer, Bambi. "AN ASSESSMENT OF WHITE-TAILED DEER (ODOCOILEUS VIRGINIANUS) DYNAMICS, MANAGEMENT, AND IMPACTS IN HIGHLY FRAGMENTED LANDSCAPES." Wright State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=wright1292874594.
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40
Williams, Lindsey C. "The U.S. Atlantic commercial fishing industry and cold water coral conservation history, current trends and next steps /." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 115 p, 2009. http://proquest.umi.com/pqdweb?did=1824796041&sid=6&Fmt=2&clientId=8331&RQT=309&VName=PQD.
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Marchesini, Gregorio. "Caratterizzazione della Sardinia Deep Space Antenna in supporto di missioni deep space." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/20809/.
Повний текст джерелаАнотація:
Nel seguente elaborato verranno analizzate le caratteristiche principali della Sardinia Deep Space Antenna, il radio telescopio italiano co-finanziato da INAF e ASI per supportare sia la ricerca nell’ambito dell’astronomia, sia le missioni planetarie attualmente in corso e quelle future.
Nello specifico, si analizzeranno le capacità della SDSA nell’ambito delle missioni deep space partendo da un confronto con le Deep Space Antennas da 35-m e 34-m, che vengono attualmente impiegate rispettivamente da ESA e NASA. Particolare attenzione verrà data alle soluzioni che accomunano e differenziano le tre DSA per valutare quale potrebbe essere il contributo innovativo della SDSA nell’ambito delle missioni deep space.
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Storm, Daniel J. "White-tailed deer ecology and deer-human conflict in an exurban landscape /." Available to subscribers only, 2005. http://proquest.umi.com/pqdweb?did=1095427551&sid=6&Fmt=2&clientId=1509&RQT=309&VName=PQD.
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Benge, Sarah Elizabeth. "Nutrient selection by fallow deer (Dama dama) and roe deer (Capreolus capreolus)." Thesis, University of Southampton, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249639.
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Parker, Israel David. "Effects of translocation and deer-vehicle collision mitigation on Florida Key deer." [College Station, Tex. : Texas A&M University, 2006. http://hdl.handle.net/1969.1/ETD-TAMU-1878.
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Mansour, Tarek M. Eng Massachusetts Institute of Technology. "Deep neural networks are lazy : on the inductive bias of deep learning." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/121680.
Повний текст джерелаАнотація:
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2019
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 75-78).
Deep learning models exhibit superior generalization performance despite being heavily overparametrized. Although widely observed in practice, there is currently very little theoretical backing for such a phenomena. In this thesis, we propose a step forward towards understanding generalization in deep learning. We present evidence that deep neural networks have an inherent inductive bias that makes them inclined to learn generalizable hypotheses and avoid memorization. In this respect, we propose results that suggest that the inductive bias stems from neural networks being lazy: they tend to learn simpler rules first. We also propose a definition of simplicity in deep learning based on the implicit priors ingrained in deep neural networks.
by Tarek Mansour.
M. Eng.
M.Eng. Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science
46
Perjeru, Florentine. "Deep Defects in Wide Bandgap Materials Investigated Using Deep Level Transient Spectroscopy." Ohio University / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou997365452.
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Venkatesan, R. "Studies On Corrosion Of Some Structural Materials In Deep Sea Environment." Thesis, Indian Institute of Science, 2000. http://hdl.handle.net/2005/189.
Повний текст джерелаАнотація:
Efficient exploitation and conservation of the oceans poses great technological challenges for scientists and engineers who must develop materials, structures and equipment for use in harsh environment of the oceans. For the applications of materials in marine environment, knowledge of the corrosion properties is essential for selection purposes. Presently, effort is being devoted to exploit deep-sea mineral resources. Deterioration of materials in the deep sea is due to the cumulative effect hydrostatic pressure, temperature, pH, dissolved oxygen, salinity and sea current. For the first time, in-situ corrosion measurements on the effect of deep sea environment on some metallic and composite materials were carried out at depths of 500,1200,3500, and 5100 m for 168,174 and 174 days of exposure in the Indian Ocean.
Corrosion rate was obtained from weight loss measurements (mm/year) and surface morphology of as-exposed and cleaned specimens of the above materials was studied under scanning electron microscope and ED AX. Galvanic coupling of steel with zinc, magnesium and aluminium were also studied.. Tensile on metal and alloys and tensile, compressive, flexure and ILSS tests on carbon fibre reinforced composite specimen were performed on exposed specimens. XRD studies were conducted on the corrosion product of materials. In order to correlate the performance of materials in deep-sea environment, seawater current and temperature data were also collected at same period Results reveal that the corrosion behaviour of steels is controlled by dissolved oxygen prevailing and corrosion rate corresponds to dissolved oxygen available at these depth levels. This is due to the fact that oxygen acts as a cathodic deploarizer during corrosion reaction of steels in seawater. Corrosion rate of aluminium increases as the depth increases. This is due to the effect of hydrostatic pressure, which reduces the ionic radii of chlorine ions and facilitates easy penetration of these ions into surface layer. Titanium, titanium alloy (Ti-6A1-4V) and stainless steels did not show any deterioration at all depths studied. Morphology of as exposed and corroded coupons reveal different features. EDS analyses on exposed specimens are analyzed in light of seawater parameters. Carbon fibre reinforced composite did not show any change in properties like tensile, compression flexural and ILSS compared to control (unexposed) specimens. The deposition of calcium carbonate on galvanically coupled mild steel with zinc, aluminium and magnesium corresponds to availability of calcium in the deep ocean. EDS analyses on exposed coupons did not reveal calcium element below the calcium carbonate compensation depth (CCD) at 3800 m in Indian Ocean. Potentiodynamic polarization studies on some metals and alloys indicate that the behaviour of materials in deep-sea environment is a cumulative effect of all oceanographic parameters.
Tensile test results on stainless steels SS-304 & SS-316L), titanium and titanium alloy (exposed) specimens did not show any significant change in their tensile properties and is again attributed to the passive film formed on its surface and nearly zero corrosion rate observed. Microbiological investigations on the exposed materials indicate that except carbon fibre reinforced composite all other metals and alloys harboured bacterial colonies. Results have been used to recommend structural materials suitable for the deep-sea applications.
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Romberg, Andreas. "Te Deum - op. 55." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-67962.
Повний текст джерелаАнотація:
Corrected and modernized (clefs, instruments) edition, very close to original and practical - but NOT SCIENTIFICALLY CRITICAL - this great version with full orchestra as in original dedicated to marriage of HRH Prince William of England and His Lady Catherine Middleton on 29th of April 2011. Derived from print, app. 1819, digital library, SLUB DRESDEN.
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Daniels, Kelly L. "Deep water, open water." Master's thesis, Mississippi State : Mississippi State University, 2009. http://library.msstate.edu/etd/show.asp?etd=etd-04022009-163550.
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50
Burchfield, Monica R. "Fish from Deep Water." Digital Archive @ GSU, 2010. http://digitalarchive.gsu.edu/english_theses/100.
Повний текст джерелаАнотація:
These poems are lyrical narratives dealing primarily with the joys and sufferings of familial relationships in present and past generations, and how one is influenced and haunted by these interactions. There is a particular emphasis placed on the relationship between parent and child. Other poems deal with passion, both in the tangible and spiritual realms. The poems aim to use vivid figurative language to explore complex and sometimes distressing situations and emotions.