To see the other types of publications on this topic, follow the link: NATURAL SOLUTION.

Dissertations / Theses on the topic 'NATURAL SOLUTION'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'NATURAL SOLUTION.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Konrad, Stephanie, and Daniela Polziehn. "The Natural Solution? : A Qualitative Study on Attitudes towards Natural Care Products for Men of Generation Y." Thesis, Internationella Handelshögskolan, Högskolan i Jönköping, IHH, Företagsekonomi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-30387.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Smethurst, Christopher. "A Finite Element Solution of the Natural Convection Problem in 3D." Thesis, University of Manchester, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.517825.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Donini, Mariovane Sabino. "Numerical solution for the droplet combustion." Universidade Federal do Pampa, 2017. http://dspace.unipampa.edu.br:8080/jspui/handle/riu/1955.

Full text
Abstract:
Submitted by Cátia Araújo (catia.araujo@unipampa.edu.br) on 2017-09-29T13:05:00Z No. of bitstreams: 1 Mariovane Sabino Donini - 2017.pdf: 4347435 bytes, checksum: b83edb6c2d0b7868757722dc435be9fa (MD5)<br>Approved for entry into archive by Marlucy Farias Medeiros (marlucy.farias@unipampa.edu.br) on 2017-09-29T16:25:43Z (GMT) No. of bitstreams: 1 Mariovane Sabino Donini - 2017.pdf: 4347435 bytes, checksum: b83edb6c2d0b7868757722dc435be9fa (MD5)<br>Made available in DSpace on 2017-09-29T16:25:43Z (GMT). No. of bitstreams: 1 Mariovane Sabino Donini - 2017.pdf: 4347435 bytes, checksum: b83edb6c2d0
APA, Harvard, Vancouver, ISO, and other styles
4

Ogunrobo, Emmanuel Osarumwense. "Analysis of hydrocarbon solubility in amine solution used for natural gas processing." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

Find full text
Abstract:
This Thesis comprises of experimental and the theoretical work done on the analysis of hydrocarbon solubility in amine solutions used for natural gas processing. The objective of this study is the solubility of hydrocarbons in different Amine solutions and the comparison of the results obtained, in order to understand their behaviour in applications related to Natural Gas processing. From solubility knowledge indeed several informations of interest could be obtained such as: i) quantification of possible losses of hydrocarbons during amine treatment ii) evaluation of the amount of these com
APA, Harvard, Vancouver, ISO, and other styles
5

Rhys, Natasha Hazel. "Exploring the structural properties of natural and synthetic biological molecules in aqueous solution." Thesis, University of Leeds, 2015. http://etheses.whiterose.ac.uk/11248/.

Full text
Abstract:
Peptoids are synthetic mimics of naturally-occurring peptides (the natural building blocks of proteins). These interesting building blocks are more resistant to temperature, pH and solvent denaturation, and possess a more exible backbone compared to their peptide counterparts. As a result, peptoids are emerging as promising biomimetic materials for a range of applications. Despite this potential, very little is known about the intermolecular interactions which determine their stability and solubility, including hydrogen-bonding, hydrophobic interactions and hydration properties, as well the st
APA, Harvard, Vancouver, ISO, and other styles
6

Comuni, Federica. "A natural language processing solution to probable Alzheimer’s disease detection in conversation transcripts." Thesis, Högskolan Kristianstad, Fakulteten för naturvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-19889.

Full text
Abstract:
This study proposes an accuracy comparison of two of the best performing machine learning algorithms in natural language processing, the Bayesian Network and the Long Short-Term Memory (LSTM) Recurrent Neural Network, in detecting Alzheimer’s disease symptoms in conversation transcripts. Because of the current global rise of life expectancy, the number of seniors affected by Alzheimer’s disease worldwide is increasing each year. Early detection is important to ensure that affected seniors take measures to relieve symptoms when possible or prepare plans before further cognitive decline occurs.
APA, Harvard, Vancouver, ISO, and other styles
7

Li, Bo. "Synthesis, Kinetics and Mechanisms of Designer and Natural Product Antioxidants: From Solution to Cells." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/34335.

Full text
Abstract:
Lipid peroxidation has been implicated in the onset and progression of many degenerative diseases, including cardiovascular disease, Alzheimer’s disease and cancer. Accordingly, for more than 50 years, considerable effort has been devoted to the design of synthetic compounds or the discovery of natural products that can slow lipid peroxidation. Despite the enormous investments made to date, no clear antioxidant strategies have emerged for the treatment and/or prevention of degenerative disease. We argue that this is because of a lack of fundamental understanding of the chemical reactivity of t
APA, Harvard, Vancouver, ISO, and other styles
8

Talbot, James David Ralph. "The conductivity of carbonate and phosphate species in aqueous solution and in some related natural waters." Thesis, University of Reading, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.280559.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Jonsson, Åsa. "Enhancement of Dry Content in Coating Solution for Functional Packaging." Thesis, Linköping University, Department of Physics, Chemistry and Biology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-16576.

Full text
Abstract:
<p>The main goal for a packaging is to protect the product inside. Typical packaging nowadays is made of layers of paper and barriers consisting of plastics or aluminum foil. A problem with the barrier used today is the environmental thinking. Xylophane® is an environmental friendly and biodegradable alternative to the current barrier material used in packaging. It consists of the natural carbohydrate xylan and additives. Xylophane® is an efficient barrier to oxygen, grease and aroma and can prolong the shelf life of sensitive food.</p><p>The raw material xylan is water soluble and Xylophane®
APA, Harvard, Vancouver, ISO, and other styles
10

Heeren, Alexander Heeren. "Identifying the Problem or Identifying with the Solution?The Role of Motivated Reasoning and Identity Politics in Environmental Science." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1468073451.

Full text
APA, Harvard, Vancouver, ISO, and other styles
11

Nikolkina, Irina. "Modélisation des écoulements de gravité et des ondes longues : application à l'évaluation des risques de catastrophes naturelles dans les Antilles françaises." Thesis, Antilles-Guyane, 2011. http://www.theses.fr/2011AGUY0435/document.

Full text
Abstract:
La thèse est consacrée à la recherche des catastrophes marines (tsunamis, ondes de tempête) dans les Antilles françaises, en utilisant des modèles analytiques et numériques de mécanique des fluides. L'accent est mis sur le développement de modèles de mouvement de glissements de terrain et des vagues causées par ces glissements. Le modèle le plus simple du glissement de terrain «solide block» est utilisé pour évaluer les caractéristiques des flux pyroclastiques du volcan Soufrière-Hills (Montserrat). Un modèle plus complexe de modélisation de glissement de terrain (modèle de Savage-Hutter) a ét
APA, Harvard, Vancouver, ISO, and other styles
12

Armagan, Emre. "Decomposition algorithms for global solution of deterministic and stochastic pooling problems in natural gas value chains." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/46629.

Full text
Abstract:
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2009.<br>Includes bibliographical references (leaves 153-158).<br>In this thesis, a Benders decomposition algorithm is designed and implemented to solve both deterministic and stochastic pooling problems to global optimality. Convergence of the algorithm to a global optimum is proved and then it is implemented both in GAMS and C++ to get the best performance. A series of example problems are solved, both with the proposed Benders decomposition algorithm and commercially available global optimization software
APA, Harvard, Vancouver, ISO, and other styles
13

Ndayambaje, Guillaume. "Sorption properties of natural zeolites for the removal of ammonium and chromium ions in aqueous solution." University of the Western Cape, 2011. http://hdl.handle.net/11394/5425.

Full text
Abstract:
>Magister Scientiae - MSc<br>There are huge amount of natural clinoptilolite available in South Africa which can be utilised for wastewater treatment of ammonia and chromium if their characteristics are properly known. However, these deposits have not been well characterised but in this study, the untreated clinoptilolite materials were fully characterised using techniques such as SEM-EDS, HRTEM-SAED, XRD, XRF, FTIR and BET. After acid pretreatment with several extractions, the pretreated samples were again characterised using the above mentioned techniques. These pretreated materials were us
APA, Harvard, Vancouver, ISO, and other styles
14

Romashko, A. S. "Green economy as a solution of ecological problems." Thesis, Sumy State University, 2014. http://essuir.sumdu.edu.ua/handle/123456789/45223.

Full text
Abstract:
Every year the world’s GDP increases, but mainly due using of natural resources. Every year demand for environmental resources as water wood is increasing. Climate change, depletion of natural resources, increasing energy prices are some of the most important problems. The solution to these problems may be a shift to a "green economy." A new branch of economics called "green economy" is designed to improve the nature of the country. "Green Economy" - a new stage of development, which involves new technologies, ecosystems, the creation of "pure transport", organic food.
APA, Harvard, Vancouver, ISO, and other styles
15

Beltz, Morgan. "The Declining Natural Fish Stock: A Proposed Solution to Public Fear and Perceptions of Genetically Modified Fish." Scholarship @ Claremont, 2013. http://scholarship.claremont.edu/cmc_theses/765.

Full text
Abstract:
The global fish population is declining. Aquaculture production is saturated and the global fish stock is operating at an unsustainable level. Genetically modified (GM) fish is a potential solution to relieve the natural fish stock, if the FDA grants the approval. The global fish population is harmed by environmental conditions and the inability for fish to adapt to changing conditions and human interactions. Genetic modification is a growing technology that has the ability to alleviate the fishing industry by modifying fish to grow faster, be disease tolerant, eat plant-based food, and be mor
APA, Harvard, Vancouver, ISO, and other styles
16

de, las Heras Reverte Víctor. "Evaluation of natural materials in Sustainable Buildings : A potential solution to the European 2050 long-term strategy." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-300115.

Full text
Abstract:
Today, buildings consume 40% of total energy demand in the EU and are responsible for 36% of GHG emissions. For this reason, and due to the delicate situation of climate change that planet Earth is experiencing, solutions are being sought to make the building sector more sustainable. In the current project, the use of natural materials has been chosen as a solution in line with the EU 2050 long-term strategy. This research broadens the knowledge on sustainable building with natural materials as an alternative to conventional construction. To this end, first, an extensive state of the art has b
APA, Harvard, Vancouver, ISO, and other styles
17

Gumgum, Sevin. "The Dual Reciprocity Boundary Element Method Solution Of Fluid Flow Problems." Phd thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12611605/index.pdf.

Full text
Abstract:
In this thesis, the two-dimensional, transient, laminar flow of viscous and incompressible fluids is solved by using the dual reciprocity boundary element method (DRBEM). Natural convection and mixed convection flows are also solved with the addition of energy equation. Solutions of natural convection flow of nanofluids and micropolar fluids in enclosures are obtained for highly large values of Rayleigh number. The fundamental solution of Laplace equation is used for obtaining boundary element method (BEM) matrices whereas all the other terms in the differential equations governing the flows a
APA, Harvard, Vancouver, ISO, and other styles
18

Koller, David. "A Solution Under Pressure: Integrating Facilitative Practices into Water-Related Civil Litigations." Thesis, University of Oregon, 2017. http://hdl.handle.net/1794/22745.

Full text
Abstract:
The broad scope of this research concerns the field of conflict and dispute resolution, also referred to as alternative dispute resolution (ADR). ADR practices have developed in both executive and judicial branches of government since the early 1900’s. The goal of this paper is to evaluate how ADR practitioners working in water-related civil litigation can apply facilitative practices prior, during, and after the proceeding to reduce harm, cost, and time of litigation and increase the overall satisfaction of the parties when the proceeding has been resolved. To achieve this goal, a framewor
APA, Harvard, Vancouver, ISO, and other styles
19

Reséndiz, Marino. "Photochemical decarbonylation of ketones in the solid state and in solution ; Progress towards the total synthesis of natural products." Diss., Restricted to subscribing institutions, 2008. http://proquest.umi.com/pqdweb?did=1790313711&sid=16&Fmt=2&clientId=48051&RQT=309&VName=PQD.

Full text
APA, Harvard, Vancouver, ISO, and other styles
20

Kelly, Sean R. "STRUCTURAL MECHANISMS OF (POLY)ANION SOLID SOLUTION IN SYNTHETIC OH-Cl BINARY APATITE AND NATURAL F-OH-Cl TERNARY APATITE." Miami University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=miami1480963439051542.

Full text
APA, Harvard, Vancouver, ISO, and other styles
21

Alsoy-akgun, Nagehan. "The Dual Reciprocity Boundary Element Solution Of Helmholtz-type Equations In Fluid Dynamics." Phd thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615729/index.pdf.

Full text
Abstract:
In this thesis, the two-dimensional, unsteady, laminar and incompressible fluid flow problems governed by partial differential equations are solved by using dual reciprocity boundary element method (DRBEM). First, the governing equations are transformed to the inhomogeneous modified Helmholtz equations, and then the fundamental solution of modified Helmholtz equation is used for obtaining boundary element method (BEM) formulation. Thus, all the terms in the equation except the modified Helmholtz operator are considered as inhomogeneity. All the inhomogeneity terms are approximated by using sui
APA, Harvard, Vancouver, ISO, and other styles
22

MELLO, Rafael Ferreira Leite de. "A solution to extractive summarization based on document type and a new measure for sentence similarity." UNIVERSIDADE FEDERAL DE PERNAMBUCO, 2015. https://repositorio.ufpe.br/handle/123456789/15257.

Full text
Abstract:
Submitted by Isaac Francisco de Souza Dias (isaac.souzadias@ufpe.br) on 2016-02-19T18:25:04Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) TESE Rafael Ferreira Leite de Mello.pdf: 1860839 bytes, checksum: 4d54a6ef5e3c40f8bce57e3cc957a8f4 (MD5)<br>Made available in DSpace on 2016-02-19T18:25:04Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) TESE Rafael Ferreira Leite de Mello.pdf: 1860839 bytes, checksum: 4d54a6ef5e3c40f8bce57e3cc957a8f4 (MD5) Previous issue date: 2015-03-20<br>The I
APA, Harvard, Vancouver, ISO, and other styles
23

Caritey, Jean-Philippe. "Relation entre la modification chimique de précurseurs hydrophiles d'origine naturelle et leurs propriétés en solution diluée et semi-diluée." Rouen, 1994. http://www.theses.fr/1994ROUES013.

Full text
Abstract:
Nous avons déterminé l'influence de différentes modifications chimiques sur les propriétés en solution de polysaccharides d'origine végétale déjà largement utilisés dans l'industrie pétrolière, notamment pour des questions de protection de l'environnement: l'hydroxypropylguar (HPG) est un galactomannane neutre. La fixation d'une petite quantité de longues chaînes alkyles hydrophobes lui procure un caractère associatif. Nous avons mis en évidence qu'en régime dilué, l'établissement d'interactions intramoléculaires se traduit par l'adoption d'une conformation plus compacte ce qui explique la dim
APA, Harvard, Vancouver, ISO, and other styles
24

De, Pietro Júlia [UNESP]. "Fisiologia pós-colheita de rosas cortadas cv. Vega." Universidade Estadual Paulista (UNESP), 2009. http://hdl.handle.net/11449/96947.

Full text
Abstract:
Made available in DSpace on 2014-06-11T19:28:31Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-09-18Bitstream added on 2014-06-13T18:57:49Z : No. of bitstreams: 1 depietro_j_me_jabo.pdf: 1424480 bytes, checksum: fd0d58d73de3ddb09b7b417a5389737f (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Face à carência de estudos relacionados à fisiologia pós-colheita de flores, a presente pesquisa teve como finalidade estudar a fisiologia e conservação póscolheita de flores cortadas de rosas cv. Veg
APA, Harvard, Vancouver, ISO, and other styles
25

Pires, Plínio Ferreira. "Estudo da carbonatação avançada em concretos contendo adições minerais." Universidade Federal de Goiás, 2016. http://repositorio.bc.ufg.br/tede/handle/tede/6319.

Full text
Abstract:
Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2016-10-03T11:31:01Z No. of bitstreams: 2 Dissertação - Plínio Ferreira Pires - 2016.pdf: 6131513 bytes, checksum: 8fa6643740293050fba973c250df0e54 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2016-10-03T11:31:21Z (GMT) No. of bitstreams: 2 Dissertação - Plínio Ferreira Pires - 2016.pdf: 6131513 bytes, checksum: 8fa6643740293050fba973c250df0e54 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Made ava
APA, Harvard, Vancouver, ISO, and other styles
26

Blachot, Jean-François. "Étude des propriétés rhéologiques des solutions cellulose/monohydrate de N-oxyde de N-méthylmorpholine (NMMO) : filage de cellulose extraite de paille de blé : structure et fibrillation des fils obtenus." Université Joseph Fourier (Grenoble ; 1971-2015), 1995. http://www.theses.fr/1995GRE10189.

Full text
Abstract:
Une etude originale des proprietes rheologiques de solutions de cellulose dissoute dans du monohydrate de n-oxyde de n-methylmorpholine (nmmo) nous a permis de determiner l'influence de la concentration et de la masse molaire de la cellulose sur les valeurs de la viscosite newtonienne et du temps d'ecoulement qui evoluent respectivement comme c#4#,#6m#5 et c#2#,#7m#5. D'autre part, des mesures effectuees en spectrometrie mecanique a differentes temperatures ont permis d'elaborer une courbe maitresse decrivant le comportement de ces solutions depuis l'etat visqueux jusqu'a l'etat vitreux. Nous
APA, Harvard, Vancouver, ISO, and other styles
27

Cai, Zhemin. "A High-order Discontinuous Galerkin Method for Simulating Incompressible Fluid-Thermal-Structural Problems." Thesis, The University of Sydney, 2018. http://hdl.handle.net/2123/20961.

Full text
Abstract:
The use of discontinuous Galerkin (DG) methods to solve fluid thermal structure interaction problems in numerical modelling is known to offer several advantages. In particular, DG methods provide the flexibility of using different approximations in different elements, which makes the methods ideal for hp-adaptivity. The first objective of this thesis is to present a framework for the computation of fluid thermal structure interaction problems within both the single and multi-solid domain using DG methods on unstructured grids. The full solver consists of four main components: the incompressibl
APA, Harvard, Vancouver, ISO, and other styles
28

Salov, Aleksandar. "Towards automated learning from software development issues : Analyzing open source project repositories using natural language processing and machine learning techniques." Thesis, Linnéuniversitetet, Institutionen för medieteknik (ME), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-66834.

Full text
Abstract:
This thesis presents an in-depth investigation on the subject of how natural language processing and machine learning techniques can be utilized in order to perform a comprehensive analysis of programming issues found in different open source project repositories hosted on GitHub. The research is focused on examining issues gathered from a number of JavaScript repositories based on their user generated textual description. The primary goal of the study is to explore how natural language processing and machine learning methods can facilitate the process of identifying and categorizing distinct
APA, Harvard, Vancouver, ISO, and other styles
29

De, Pietro Júlia. "Fisiologia pós-colheita de rosas cortadas cv. Vega /." Jaboticabal : [s.n.], 2009. http://hdl.handle.net/11449/96947.

Full text
Abstract:
Resumo: Face à carência de estudos relacionados à fisiologia pós-colheita de flores, a presente pesquisa teve como finalidade estudar a fisiologia e conservação póscolheita de flores cortadas de rosas cv. Vega, considerando os fatores associados à senescência floral e perda de vida decorativa. Os experimentos foram conduzidos em delineamento inteiramente casualizado, em esquema fatorial. Em todos os experimentos, as rosas foram mantidas em ambiente de laboratório com 20±2ºC e 67±3% UR, padronizadas em 50 cm e realizadas as seguintes avaliações (exceto para o experimento 5): perda de massa fres
APA, Harvard, Vancouver, ISO, and other styles
30

Kalyva, Maria. "Fate of pharmaceuticals in the environment - A review-." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-132995.

Full text
Abstract:
The occurrence of pharmaceuticals in environment originating from human consumption has received increased scientific attention during the last decades due to concerns regarding their combined environmental effects in aquatic and terrestrial environments, in flora and biota and by extent in human health. In this review, I summarized the existing knowledge on the entire life cycle of pharmaceutical substances, from their exposure (sources) and fate to their effects on the natural environment. Since the negative effects of several drugs along with the environmental damage they entail are now kno
APA, Harvard, Vancouver, ISO, and other styles
31

Morris, Graham Peter. "Parameter recovery in AC solution-phase voltammetry and a consideration of some issues arising when applied to surface-confined reactions." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:1b1d40f3-ef1a-4f64-b500-17ce34630c43.

Full text
Abstract:
A major problem in the quantitative analysis of AC voltammetric data has been the variance in results between laboratories, often resulting from a reliance on "heuristic" methods of parameter estimation that are strongly dependent on the choices of the operator. In this thesis, an automatic method for parameter estimation will be tested in the context of experiments involving electron-transfer processes in solution-phase. It will be shown that this automatic method produces parameter estimates consistent with those from other methods and the literature in the case of the ferri-/ferrocyanide co
APA, Harvard, Vancouver, ISO, and other styles
32

Bose, Sweta. "Dissolution Kinetics of Sulfate Minerals: Linking Environmental Significance of Mineral-Water Interface Reactions to the Retention of Aqueous CrO42- in Natural Waters." Wright State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=wright1207285064.

Full text
APA, Harvard, Vancouver, ISO, and other styles
33

Fenger, Julie-Anne. "Les anthocyanes acylées en tant que colorants naturels : réactivité en solution aqueuse, complexation métallique et stabilisation pour des applications alimentaires The chemical reactivity of anthocyanins and its consequences in food science and nutrition The influence of acylation and metal binding on the thermal stability of red cabbage anthocyanins The fate of acylated anthocyanins in neutral solution." Thesis, Avignon, 2020. http://www.theses.fr/2020AVIG0278.

Full text
Abstract:
Les anthocyanes sont des pigments d’origine végétale exprimant des couleurs vives allant du rouge au bleu. Ce sont donc de bons candidats pour remplacer les colorants alimentaires artificiels. Cependant, leur faible stabilité est un frein à ces applications, tout particulièrement en milieu neutre requis pour l’expression de la couleur bleue. Une perspective prometteuse est le recours aux anthocyanes acylées par les acides phydroxycinnamiques, car ces pigments développent des mécanismes protecteurs de la couleur (copigmentation intramoléculaire, auto-association) basés sur de fortes interaction
APA, Harvard, Vancouver, ISO, and other styles
34

Ji, Yuefei. "Photochemical and photocatalytic degradation of pharmaceutical and personal care products (PPCPS) in aqueous solution : a case study of atenolol and 2-phenylbenzimidazole-5-sulfonic acid." Phd thesis, Université Claude Bernard - Lyon I, 2014. http://tel.archives-ouvertes.fr/tel-01058226.

Full text
Abstract:
In this thesis, the photochemical and photocatalytic degradation of atenolol (ATL) and 2-phenylbenzimidazole-5-sulfonic acid (PBSA) have been investigated in aqueous solutions. Our results show that direct photolysis of ATL is weak and the indirect photolysis, e.g., induced by photosensitizers such as nitrate, may contributed to its major loss process in natural sunlit waters. In the case of PBSA, direct photolysis is found to be important while the indirect photolysis may play a less important role in its elimination in natural surface waters. The photolytic reactions (either direct or indire
APA, Harvard, Vancouver, ISO, and other styles
35

Parks, David William. "Sub-sea gas processing." Thesis, Curtin University, 2011. http://hdl.handle.net/20.500.11937/2588.

Full text
Abstract:
To meet the demands of deeper and more remote reservoirs, subsea processing has been poised as one of the most potentially promising technology developments in the offshore development.Natural Gas usually contains significant quantities of water vapour, which must be removed for gas processing and transmission. A pipeline transporting natural gas at a pressure of 10 Mega Pascals at equilibrium with seawater at 4 C must have water content lower than around 144 parts per million (by volume) to ensure water will not condense within the pipeline. Failure to sufficiently reduce the water content ca
APA, Harvard, Vancouver, ISO, and other styles
36

Capacci, Christian. "Resistenza idraulica del rivestimento arginale vegetato: sperimentazione in canaletta e velocimetria doppler." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

Find full text
Abstract:
Le tecniche di protezione “a verde” sono ampiamente utilizzate al fine di mitigare il fenomeno dell’erosione superficiale delle sponde fluviali o lungo le scarpate dei pendii, in quanto di facile installazione ed eco-compatibili. Nello studio affrontato si è realizzata una sperimentazione in canaletta idraulica, con lo scopo di stabilire quali sono le caratteristiche che un buon rivestimento vegetativo deve avere per poter garantire un’opportuna protezione all’erosione nel caso di suolo a contatto con l’acqua. Le prove sperimentali sono state condotte presso il laboratorio di idraulica LIDR d
APA, Harvard, Vancouver, ISO, and other styles
37

Natali, Andrea. "Double Dyke System - Natural engineering solutions." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/21243/.

Full text
Abstract:
According to various studies, the effects of climate change will be a danger to ecosystems and the population, especially in coastal areas, increasing the risk of floods. Authorities are taking action to prevent future disasters using traditional engineering solutions. These solutions can have high environmental and economic costs, fixing the coastline, increasing the salinization of aquifers, and can be subject to failure mechanisms. For this reason, studies were made to use natural engineering solutions for coastal protection, instead of traditional solutions, to achieve the UN SDGs. Coasta
APA, Harvard, Vancouver, ISO, and other styles
38

Corrales, Juliana. "Modeling a Phosphorus Credit Trading Program in the Lake Okeechobee Watershed." FIU Digital Commons, 2015. http://digitalcommons.fiu.edu/etd/2294.

Full text
Abstract:
Lake Okeechobee is the largest lake in the southeastern United States and is a central component of the hydrology and environment of the Everglades ecosystem in South Florida. The natural state of the lake has been degraded as wetlands and natural habitats in the Lake Okeechobee watershed have been replaced with farms, urban areas, and dairy operations. Excessive phosphorus loadings from these diverse sources have been identified as the leading causes of the lake’s impairment. For more than four decades, many resources have been allocated to regional and local restoration efforts to reduce pho
APA, Harvard, Vancouver, ISO, and other styles
39

Macken, Stephen. "Integrated Optical Solutions for Ubiquitous Sensing." Doctoral thesis, Linköpings universitet, Tillämpad Fysik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-63709.

Full text
Abstract:
Ubiquitous chemical sensing aims at exploiting consumer electronic devices as temporary chemical sensing platforms. These devices are a highly disseminated infrastructure, not presently being exploited for chemical sensing purposes. The goal of the ubiquitous chemical sensing field is to create the methodologies and adapted devices to profit from this unexploited resource. DVD drives, flat bed scanners and computer screens used in combination with web cameras, and mobile phones have been demonstrated as measuring platforms, during the past 10 years. In particular the combination of computer sc
APA, Harvard, Vancouver, ISO, and other styles
40

Fahs, Amin. "Modeling of naturel convection in porous media : development of semi-analytical and spectral numerical solutions of heat transfer problem in special domains." Thesis, Strasbourg, 2021. https://publication-theses.unistra.fr/restreint/theses_doctorat/2021/Fahs_Amin_2021_ED269.pdf.

Full text
Abstract:
Le problème de la cavité poreuse carrée est largement utilisé comme cas de référence courant pour les problèmes de Convection Naturelle (CN) en milieux poreux. Il peut être utilisé pour plusieurs applications numériques, théoriques et pratiques. Par ailleurs, toutes les solutions de haute précision existantes dans la littérature scientifique sont développées dans des conditions de régime permanent. Cependant, il est bien connu que les processus de CN dans les milieux poreux se produisent naturellement dans un régime dépendant du temps, car les conditions aux limites peuvent être variables dans
APA, Harvard, Vancouver, ISO, and other styles
41

Johansson, Maria. "Natural Light, Space and Perception." Thesis, KTH, Arkitektur, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-280168.

Full text
Abstract:
This is a research-based project investigating the relation between natural light, space and perception. It is in the format of a book with eight parts based on the observation and analysis of physical models. The spaces created in this book are divided in three parts, general daylight solutions, perceptual light-spaces and purposeful light-spaces. The first part consists of 19 spaces transferred from drawings found in Sunlighting as Formiver for Architecture by William M.C. Lam. The second part contains ten spaces based on perception and in the third part the focus in of function, which is ge
APA, Harvard, Vancouver, ISO, and other styles
42

Rae, Ian Black. "Natural biosorbents for the removal of metals from aqueous solutions." Thesis, Open University, 2008. https://pure.uhi.ac.uk/portal/en/studentthesis/natural-biosorbents-for-the-removal-of-metals-from-aqueous-solutions(02780c75-a23e-41e9-aaae-071f211efafd).html.

Full text
Abstract:
The removal of metals from potable and wastewater to regulatory standards presents unique challenges. Conventional treatments, chemical precipitation, adsorption by activated carbon, ion-exchange, electro-chemical and reverse osmosis can be expensive or ineffective at low concentrations. Recent research has shown that biosorption by low cost biomass can be an effective alternative. Biosorption is the passive (non-metabolic) uptake and concentration of metals by non-viable biological materials. In this work, natural materials and shellfish processing wastes were physiochemically characterised t
APA, Harvard, Vancouver, ISO, and other styles
43

Panesar, Kulvinder. "Conversational artificial intelligence - demystifying statistical vs linguistic NLP solutions." Universitat Politécnica de Valéncia, 2020. http://hdl.handle.net/10454/18121.

Full text
Abstract:
yes<br>This paper aims to demystify the hype and attention on chatbots and its association with conversational artificial intelligence. Both are slowly emerging as a real presence in our lives from the impressive technological developments in machine learning, deep learning and natural language understanding solutions. However, what is under the hood, and how far and to what extent can chatbots/conversational artificial intelligence solutions work – is our question. Natural language is the most easily understood knowledge representation for people, but certainly not the best for computers beca
APA, Harvard, Vancouver, ISO, and other styles
44

Breckel, Alex Cade. "Regulating electricity and natural gas in Peru : solutions for a sustainable energy sector." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/90029.

Full text
Abstract:
Thesis: S.M. in Technology and Policy, Massachusetts Institute of Technology, Engineering Systems Division, Technology and Policy Program, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 57-59).<br>Peru is one of the fastest growing countries in Latin America, thanks in part to industry fueled by generous endowments of hydro power capacity and natural gas reserves. However, investment in electricity generation capacity has not kept pace with the rapid increase in demand and threatens to stymie future economic growth. A flawed regulatory environment
APA, Harvard, Vancouver, ISO, and other styles
45

Marzo, i. Grimalt Núria. "Natural Language Processing Model for Log Analysis to Retrieve Solutions For Troubleshooting Processes." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-300042.

Full text
Abstract:
In the telecommunications industry, one of the most time-consuming tasks is troubleshooting and the resolution of Trouble Report (TR) tickets. This task involves the understanding of textual data which can be challenging due to its domain- and company-specific features. The text contains many abbreviations, typos, tables as well as numerical information. This work tries to solve the issue of retrieving solutions for new troubleshooting reports in an automated way by using a Natural Language Processing (NLP) model, in particular Bidirectional Encoder Representations from Transformers (BERT)- ba
APA, Harvard, Vancouver, ISO, and other styles
46

Mayer, Timothy David. "Interactions of phosphorus and colloidal iron oxides in model solutions and natural waters /." Full text open access at:, 1995. http://content.ohsu.edu/u?/etd,214.

Full text
APA, Harvard, Vancouver, ISO, and other styles
47

HERZOG, PATRICIA. "Macrostructure des asphaltenes de petrole, leur comportement en milieu naturel et en solution." Paris 6, 1990. http://www.theses.fr/1990PA066545.

Full text
Abstract:
Des asphaltenes issus d'un residu sous vide de brut safaniya ont ete etudies par diffusion centrale des rayons x et des neutrons ainsi que par diffraction x. Une etude systematique de ces particules en solution dans des solvants organiques a ete effectuee. La comparaison entre les deux techniques de diffusion aux petits angles des rayons x et des neutrons a ete possible avec la solution d'asphaltenes a une concentration de 1% en poids dans l'ortho-xylene. Nous avons fait varier plusieurs parametres tels que: le vieillissement des solutions, le changement de solvant et la concentration. Les asp
APA, Harvard, Vancouver, ISO, and other styles
48

Dai, Xiang. "Recognising Biomedical Names: Challenges and Solutions." Thesis, The University of Sydney, 2021. https://hdl.handle.net/2123/25482.

Full text
Abstract:
The growth rate in the amount of biomedical documents is staggering. Unlocking information trapped in these documents can enable researchers and practitioners to operate confidently in the information world. Biomedical Named Entity Recognition (NER), the task of recognising biomedical names, is usually employed as the first step of the NLP pipeline. Standard NER models, based on sequence tagging technique, are good at recognising short entity mentions in the generic domain. However, there are several open challenges of applying these models to recognise biomedical names: ● Biomedical names
APA, Harvard, Vancouver, ISO, and other styles
49

Walsh, Jessica Claire. "Barriers and solutions to implementing evidence-based conservation." Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.709460.

Full text
APA, Harvard, Vancouver, ISO, and other styles
50

Donado, Garzón Leonardo David. "On multicomponent reactive transports in porous media: from the natural complexity to analitycal solutions." Doctoral thesis, Universitat Politècnica de Catalunya, 2009. http://hdl.handle.net/10803/5918.

Full text
Abstract:
El transporte de solutos no conservativos en medios porosos o fracturados es altamente influenciado por su heterogeneidad. Complejidad adicional se agrega al proceso de transporte, debido a la presencia de diferentes tipos de reacciones químicas que controlan la evolución de las concentraciones de las especies en el medio. Muchas de esas reacciones químicas están gobernadas por la mezcla de aguas con diferente calidad geoquímica. La mezcla produce desequilibrio químico instantáneo en el agua mezclada resultante, y las reacciones dan lugar para que se re-equilibre el sistema.<br/><br/>Esta d
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!