Tesis sobre el tema "CCUs"
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Chao, Shir-Ley. "Relationships among patient characteristics, care processes, and outcomes for patients in coronary care units (CCUs)". Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276836.
Texto completoOgland-Hand, Jonathan D. "Integrated Systems Analyses of Using Geologically Stored CO2 and Sedimentary Basin Geothermal Resources to Produce and Store Energy". The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1555079270508336.
Texto completoKrukowski, Elizabeth Gayle. "Carbon dioxide (CO2) sorption to Na-rich montmorillonite at Carbon Capture, Utilization and Storage (CCUS) P-T conditions in saline formations". Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/49615.
Texto completoMaster of Science
Kroupa, Zdeněk. "Posouzení metod CCS a CCU". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417864.
Texto completoSOTO, ALICIA. "Carbon capture, utilization, and storage (CCUS) and how to accelerate the development and commercialization of carbon base products in the European and US market". Doctoral thesis, Politecnico di Torino, 2021. http://hdl.handle.net/11583/2942140.
Texto completoJohnson, Patricia Lee y n/a. "Being At Its Most Elusive: The Experience of Long-Term Mechanical Ventilation in a Critical Care Unit". Griffith University. School of Nursing, 2003. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20030926.154232.
Texto completoJohnson, Patricia Lee. "Being At Its Most Elusive: The Experience of Long-Term Mechanical Ventilation in a Critical Care Unit". Thesis, Griffith University, 2003. http://hdl.handle.net/10072/368088.
Texto completoThesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Nursing
Full Text
Soto, Alicia. "Carbon capture, utilization, and storage (CCUS) and how to accelerate the development and commercialization of carbon capture technologies and carbon-based products in the European and United States markets". Doctoral thesis, Universitat Politècnica de Catalunya, 2021. http://hdl.handle.net/10803/673239.
Texto completoEl tema principal d'aquest treball gira al voltant de la molècula de CO2, un gas residual estable de baix valor, poca energia i sovint disponible en gran quantitat en llocs diferents. Aquest treball examina algunes vies viables per capturar, utilitzar i emmagatzemar CO2 (CCUS), amb l'objectiu final de reduir les emissions de GEH i l'escalfament global. A més, l'estudi també examina diversos camins per accelerar la comercialització dels productes a base de carboni i les seves tecnologies. Diverses tecnologies que mostren funcions prometibles d'escalabilitat comercial i mobilitat avançada. A més, la ràpida disminució dels costos de moltes fonts renovables (principalment la solar i l'eòlica) ha fet que l'electricitat de baix cost i gairebé nul·la de carboni sigui abundant en termes de capacitat i localitat. En conseqüència, això ha impulsat alguns mercats a oferir electricitat a un cost assequible i, en alguns casos, fins i tot a preus negatius. Com que l'electricitat renovable disminueix gradualment en el preu, hi ha hagut un major coneixement de les possibles noves aplicacions (per exemple, CCU i CCUS) considerant convertir aquesta tendència en una empresa rendible. Aquest treball se centra en sis aspectes principals relacionats amb processos i tecnologies CCUS emergents basades en energies renovables: 1. Una investigació exhaustiva de tres tecnologies i processos emergents d'energies renovables (RETP) (és a dir, biogàs i cèl·lules de combustible, combustibles sintètics, carbonatació mineral de cendres voladores) que entren en el paradigma CCUS i són formes especials, relativament noves o avançades de les principals fonts d'energia. Totes les explicacions de RETP CCUS van seguides de la seva quota de mercat, els reptes, les implicacions per a una major adopció, les perspectives i els inconvenients. 2. Anàlisi de treballs experimentals relacionats amb l'ús directe de combustible que conté CO2 d'origen biològic per subministrar un procés electroquímic dedicat a la producció d'energia a alta eficiència. A més, el treball analitza un estudi de cas anomenat DEMOSOFC situat en una planta de tractament d¿aigües residuals (EDAR) a Torí, Itàlia. Analitza la producció d'energia mitjançant l'ús de biogàs produït a les EDAR i informa dels resultats de l'ús de carboni (contingut en CO2), ja que produeix energia i calor (en configuració CHP) mitjançant piles de combustible; concretament, les piles de combustible d'òxid sòlid. 3. Anàlisi del treball experimental i de modelització realitzat al Politècnic de Torí, relacionat amb l'ús de la molècula de carboni per produir combustibles sintètics (e-metà (CH4) i e-metanol (CH3OH)) mitjançant dos processos: electròlisi del vapor + metanació , i l'electròlisi del vapor + producció de metanol. 4. Anàlisi del procés químic anomenat carbonatació mineral (MC), una tecnologia d'utilització i emmagatzematge de captures de carboni (CCUS) que pot capturar grans quantitats de CO2 i convertir-lo en productes carbonats estables que es poden utilitzar fàcilment al mercat del ciment i el formigó. 5. L'examen de la comercialització potencial de les tecnologies CCUS mitjançant la identificació de quatre mercats principals i vuit categories de productes fonamentals per impulsar noves inversions i innovació a un ritme accelerat. Els principals mercats i productes discutits en aquest capítol són: (1) Mercats: materials de construcció, productes intermedis químics, combustibles, polímers (2) Productes: agregats de carbonat, metanol, àcid fòrmic, syngas, combustibles líquids, metà, poliols i policarbonats. 6. Avalua l'increment continuat de RETP CCUS malgrat la pandèmia Covid-19 resultant d'una barreja de polítiques, regulacions, incentius i innovacions passades incrustades en els sectors elèctrics de molts països avançats.
Le preoccupazioni per il riscaldamento globale e il cambiamento climatico hanno innescato gli sforzi internazionali per ridurre la quantità e la concentrazione delle emissioni di CO2 per scongiurare enormi danni economici e ambientali. Negli ultimi anni, lo sviluppo di tecnologie efficienti e convenienti per ridurre le emissioni di CO2 antropogeniche ha preso piede in tutto il mondo. L'argomento principale di questo lavoro ruota intorno alla molecola di CO2, un gas di scarto a basso valore, a bassa energia e stabile, spesso disponibile in grandi quantità in singole località. Questo lavoro esamina alcune strade percorribili per catturare, utilizzare e immagazzinare la CO2 (CCUS), con l'obiettivo finale di ridurre le emissioni di gas serra e il riscaldamento globale. Inoltre, lo studio esamina anche vari percorsi per accelerare la commercializzazione dei prodotti a base di carbonio e delle loro tecnologie. Attualmente le tecnologie CCU stanno vivendo vari stadi di performance e maturità; tuttavia, ci sono progressi significativi nelle tecnologie CCU che hanno progredito negli ultimi dieci anni; varie tecnologie che mostrano una promettente scalabilità commerciale e caratteristiche di mobilità avanzate. Inoltre, il rapido declino dei costi di molte fonti rinnovabili (principalmente solare ed eolico) ha reso l'elettricità a basso costo e quasi a zero emissioni di carbonio abbondante in termini di capacità e località. Di conseguenza, questo ha spinto alcuni mercati a offrire elettricità a costi accessibili e, in alcuni casi, anche a prezzi negativi. Poiché l'elettricità rinnovabile sta gradualmente diminuendo di prezzo, c'è stato un aumento della conoscenza delle nuove applicazioni potenziali, (per esempio, CCU e CCUS) considerando di trasformare questa tendenza in un'impresa redditizia. Questo lavoro si concentra su sei aspetti principali relativi ai processi e alle tecnologie emergenti di CCUS basati sull'energia rinnovabile: 1. Un'indagine approfondita di tre tecnologie e processi emergenti di energia rinnovabile (RETP) (cioè, biogas e celle a combustibile, combustibili sintetici, carbonatazione minerale di ceneri volanti) che rientrano nel paradigma CCUS e sono speciali, relativamente nuovi, o forme avanzate delle fonti di energia tradizionali. La spiegazione di ogni RETP CCUS è seguita dalla sua quota di mercato, dalle sfide, dalle implicazioni per una maggiore adozione, dalle prospettive e dagli svantaggi. 2. Analisi del lavoro sperimentale relativo all'uso diretto del combustibile contenente CO2 di origine biologica per alimentare un processo elettrochimico dedicato alla produzione di energia ad alta efficienza. Inoltre, il lavoro analizza un caso di studio chiamato DEMOSOFC situato in un impianto di trattamento delle acque reflue (WWTP) a Torino, Italia. Esso esamina la produzione di energia utilizzando il biogas prodotto presso il WWTP e riporta i risultati dell'uso del carbonio (contenuto nella CO2) per produrre energia e calore (in configurazione CHP) utilizzando celle a combustibile; in particolare, celle a combustibile a ossido solido. 6 3. Analisi del lavoro sperimentale e modellistico svolto presso il Politecnico di Torino legato all'utilizzo della molecola del Carbonio per produrre combustibili sintetici (e-metano (CH4) ed e-metanolo (CH3OH)) attraverso due processi: elettrolisi a vapore + metanazione, ed elettrolisi a vapore + produzione di metanolo. 4. Analisi del processo chimico chiamato carbonatazione minerale (MC), una tecnologia di cattura, utilizzo e stoccaggio del carbonio (CCUS) che può catturare grandi quantità di CO2 e convertirla in prodotti carbonati stabili che possono essere facilmente utilizzati nel mercato del cemento e del calcestruzzo. Il lavoro porta avanti la prova pragmatica che la produzione MC ha il potenziale per fornire un reddito netto positivo e la sua fattibilità commerciale è un'impresa realistica. Tuttavia, la prospettiva di una nuova direzione di cementazione tramite la carbonatazione di FA è ancora in fase di maturazione ma con un grande potenziale di commercializzazione accelerata. L'intensificazione dei benefici ambientali ed economici generati da questo nuovo percorso per la cementazione sono sostanziali se paragonati agli attuali metodi di utilizzo dell'AF nell'industria delle costruzioni. Tuttavia, le politiche e i regolamenti esistenti sul carbonio, che limitano l'uso delle ceneri volanti (principalmente quelle ceneri che contengono maggiori quantità di calcio-HCFA) possono avere un impatto sul progresso delle tecnologie di cattura del carbonio e sulla commercializzazione dei prodotti a base di carbonio. 5. L'esame della potenziale commercializzazione delle tecnologie CCUS identificando quattro mercati principali e otto categorie di prodotti critici per guidare ulteriori investimenti e innovazione ad un ritmo accelerato. I finanziamenti e gli incentivi sono necessari per la maggior parte di questi prodotti per accelerare lo sviluppo e raggiungere una capacità di lancio commerciale su larga scala. I principali mercati e prodotti discussi in questo capitolo sono: (1) Mercati - materiali da costruzione, intermedi chimici, combustibili, polimeri (2) Prodotti - aggregati carbonati, metanolo, acido formico, syngas, combustibili liquidi, metano, polioli e policarbonati. 6. Valuta il continuo aumento di RETP CCUS nonostante la pandemia di Covid-19 derivante da una miscela di politiche passate, regolamenti, incentivi e innovazioni incorporati nei settori energetici di molti paesi lungimiranti. Inoltre, guarda al futuro di RETP CCUS dopo la pandemia.
Erasmus Mundus en serveis energètics sostenibles
Ismayilli, Heydar. "Circular economy and carbon capture, utilisation and storage technologies in developing countries". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/23419/.
Texto completoIyer, Venkatraman 1967. "Backside charging of CCDs". Diss., The University of Arizona, 1997. http://hdl.handle.net/10150/288934.
Texto completoBroman, Nils. "Värdeskapande av koldioxid frånbiogasproduktion : En kartläggning över lämpliga CCU-tekniker för implementeringpå biogasanläggningar i Sverige". Thesis, Linköpings universitet, Industriell miljöteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-171793.
Texto completoKoldioxid från biogasproduktion betraktas i dagsläget som utan värde och släpps ut i atmosfärenvid uppgradering av biogas. Restgasen är en potentiell kolkälla och kan vara värdeskapandeför biogasprocessen. Genom att finna en lämplig värdeskapande process som utnyttjarkoldioxid går det att ge både ekonomiska och miljömässiga incitament till företag att utvecklasin verksamhet. I detta projekt undersöktes möjligheten att skapa värde av denna CO2.Genom en utvärdering av den tekniska mognadsgraden hos CCU-tekniker kunde en rekommendationges vid projektets slut. En analys av tekniska hinder, såsom föroreningar i gassammansättningen,såväl som hinder i form av kompetens och företagskultur undersöktes för attkunna ge en motiverad rekommendation. I projektet kartlades vilka värdeskapande systemsom skulle passa för biogasproducenter i en svensk kontext. Detta inkluderade etableradeuppgraderingstekniker för metan- och koldioxid som används i dagsläget. I projektet undersöktesäven lämpliga CCU-tekniker som kan samverka med de valda uppgraderingsprocessernaoch och agera värdeskapande. Utifrån denna kartläggning kunde det sedan anges vilkagemensamma, kritiska variabler som finns för dessa system. Därefter kunde en rekommendationav lämplig CCU-teknik ges beroende på den producerade CO2 sammansättningen. Enslutsats i projektet var att koldioxid från restgasen ofta var av hög koncentration (ca. 97-98 %)och ej innehöll några korrosiva eller toxiska komponenter, och att detta till stor del beror påhur rötkammaren är hanterad i produktionsprocessen. Således väcktes frågor kring vilka defaktiska begränsningarna för CCU är, då de inte torde vara tekniska. CCU-tekniker som visadesig vara av särskilt intresse var pH-reglering av avloppsverk, CO2 som näringssubstratför odling av mikroalger, samt tillverkning av kolsyreis för kyltransporter. Samtliga dessatekniker har tillräckligt hög teknisk mognadsgrad för att kunna installeras i dagsläget. AndraCCU-tekniker, såsom ”Power to gas”, kräver en hög CO2-koncentration och avfärdades dålitteraturstudien inte talade för den ekonomiska potentialen i dessa eftersom de kräver ytterligareuppgraderingssteg för CO2. Således valdes istället CCU-tekniker som skulle gå attimplementera direkt med den befintliga CO2 kvalitén. Vidare drogs slutsatsen att en anledningtill att CCU-tekniker inte har blivit vida implementerade till stor del är interna hindermellan distributörer och tillverkare (eller utnyttjare) av CCU-tekniker. Således kan användandetav koldioxid från biogasproduktion och implementering av CCU-tekniker främjasgenom att eliminera hinder hos företag. I projektet yttrade sig detta som bristande ekonomiskaincitament och okunskap. Ett ökat användande av CCU-tekniker kan också uppnås genomatt införa lagar och regler som begränsar användandet av föråldrade tekniker som drivs avfossila bränslen, och som kan ersättas av klimatvänliga CCU-tekniker.
Lechevallier, Antoine. "Physics Informed Deep Learning : Applications to well opening and closing events". Electronic Thesis or Diss., Sorbonne université, 2024. http://www.theses.fr/2024SORUS062.
Texto completoThe reduction of CO2 emission into the atmosphere is mandatory to achieve ecological transition. CO2 geological storage is an essential instrument for efficient Carbon Capture and Storage (CCS) policies. Numerical simulations provide the solution to the multi-phase flow equations that model the behavior of the CO2 injection site. They are an important tool to decide either or not to exploit a potential carbon storage site and to monitor the operations (potential gas leakage, optimal positioning of CO2 injection wells, etc.). However, numerical simulations of fluid flow in porous media are computationally demanding: it can take up to several hours on a HPC cluster in order to simulate one injection scenario for a large CO2 reservoir if we want to accurately model the complex physical processes involved.parMore specifically, well events (opening and closure) cause important numerical difficulties due to their instant impact on the system. This often forces a drastic reduction of the time step size to be able to solve the non-linear system of equations resulting from the discretization of the continuous mathematical model. However, these specific well events in a simulation are relatively similar across space and time: the degree of similarity between two well events depends on a few parameters such as the injection condition, the state of the reservoir at the time of the event, the boundary conditions or the porous media parameters (permeability and porosity) around each well. Recent interest in machine learning applied to the prediction of physical processes has fueled the development of ''Physics Informed Deep Learning'', where machine learning models either replace or complement traditional numerical algorithms while preserving the inherent constraints from the physical model. Therefore, the objective of this thesis is to adapt recent advances in physics informed deep learning in order to alleviate the impact of well events in the numerical simulation of multiphase flow in porous media. Our main contributions are separated in three parts.parIn the first part, we replace the traditional numerical solver with a machine-learning model. We demonstrate the feasibility of learning parameter-to-solution operators for partial differential equation problems. However, when utilizing the machine-learning model for time iteration, we observe that the predicted solution diverges from the true solution. Consequently, in the second part, we use an hybrid approach that complements the traditional non-linear solver with a machine-learning model while preserving numerical guarantees. In practice, we utilize and tailor to our purpose the hybrid Newton methodology, which involves predicting a global initialization for Newton's method closer to the solution than the standard one. We use the state-of-the-art Fourier Neural Operator machine-learning model as a predictive model. Our methodology is applied to two test cases and exhibits promising results by reducing up to 54% the number of Newton iterations compared to a reference method.parIn the last part, we apply the hybrid Newton methodology to predict an initialization in the near-well region, where the main variations of CO2 saturations occur. We investigate the impact of the local domain size and then demonstrate, for a 1D case, that it is possible to learn a local initialization for any well location. Then, we apply this local approach to a 2D case and compare the performances between the hybrid Newton strategy and a Domain Decomposition-inspired strategy. We speed up the handling of well events by around 45% in terms of Newton iterations
Goldman, Aaron David. "CCFS cryptographically curated file system". Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/54394.
Texto completoWillett, Erik Amos. "CO2 Capture on Polymer-Silica Composites from Molecular Modeling to Pilot Scale". University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron152147716339683.
Texto completoTulloch, Simon. "Astronomical spectroscopy with electron multiplying CCDs". Thesis, University of Sheffield, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.522382.
Texto completoDockrall, Samantha. "Carotenoid cleavage dioxygenases (CCDs) of grape". Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/71899.
Texto completoENGLISH ABSTRACT: Plant carotenoid cleavage dioxygenases (CCD) are a family of enzymes that catalyse the oxidative cleavage of carotenoids and/or apocarotenoids. Carotenoids are synthesised in plastids (primarily chloroplasts and chromoplasts), where they are involved in light-harvesting and protecting the photosynthetic apparatus from photo-oxidation. The carotenoid-derived apocarotenoids fulfil a number of roles in plants such as phytohormones, pollinator attractants and flavour and aroma compounds. Due to the floral and fruity characteristics that apocarotenoids contribute to wine, these C13 compounds have received interest in grapevine (Vitis vinifera L.). The CCD gene family in Arabidopsis consists of nine members, all encoding for enzymes that catalyse the cleavage of carotenoids. The enzymes in this family include 9-cis-epoxydioxygenases (NCEDs) and four classes of CCD. NCEDs and CCD7 and CCD8 are involved with plant hormone synthesis, e.g. abscisic acid (ABA) through cleavage by NCED and strigolactone (SL) through the sequential cleavage of carotenoids by CCD7 and CCD8, respectively. SLs are a fairly new class of plant hormone which are involved in several aspects of plant growth and development. The most extensively characterised role of SLs is their involvement in the inhibition of shoot-branching. CCD1 and CCD4 cleave a variety of carotenoids to form pigments and aroma compounds. For example, CCD1 forms β-ionone and β-damascenone, which are important varietal flavours of wine, and CCD4 is involved in synthesis of the pigment and aroma compounds of saffron and annatto. CCD1 enzymes symmetrically cleave the 9,10 (9’,10’) double bonds of multiple carotenoids to produce a C14 dialdehyde and two C13 products. Additional CCD1 cleavage activity at 5,6 (5’,6’) double bonds of lycopene has been reported. Previous studies have shown that CCD1 isolated from V. vinifera (VvCCD1) was able to cleave multiple carotenoid substrates in vitro, namely zeaxanthin, lutein and β-carotene at 9,10 (9’,10’) double bonds and both the 5,6 (5’,6’) and 9,10 (9’,10’) double bonds of lycopene. None of the other VvCCDs, except VvCCD4a have been isolated (but no functionality was illustrated) and characterised yet. CCD4 enzymes also cleave carotenoids at the 9,10 (9’,10’) double bond positions. The presence of plastid-target peptides implies that the CCD4 enzymes have continuous access to carotenoids. Therefore it is suggested that CCD4s are responsible for carotenoid maintenance, where CCD1s contribute towards volatile production. To test this hypothesis VvCCD1, VvCCD4a and VvCCD4b were isolated from V. vinifera (cv Pinotage) cDNA and cloned into a pTWIN1 protein expression vector. Substrate specificity of each VvCCD was tested by co-transforming a carotenoid accumulating E. coli strain with a CCD expression vector. Carotenoids synthesized by the bacteria were identified and quantified by UPLC-analysis, while the concentration of the apocarotenoids, were measured in the headspace of the bacterial cultures using HS-SPME-GC-MS. Several optimisations were done to minimize the natural degradation of the carotenoids; to ensure that the apocarotenoid formation is predominantly due to the enzymatic cleavage by the VvCCDs and not due to oxidation or other non-enzymatic degradation. The HS-SPME-GC-MS analysis indicated that all isoforms cleaved phytoene, lycopene and ε-carotene. Additionally VvCCD1 cleaved a carotenoid involved in photosynthesis, namely β-carotene, while VvCCD4a cleaves neurosporene and VvCCD4b cleaves neurosporene and ζ-carotene, carotenoids not involved in photosynthesis. This study has illustrated that VvCCD1 cleave carotenoids necessary for photosynthesis and VvCCD4s cleave carotenoids which were not present in berry tissue, suggesting their role in carotenoid maintenance. Therefore in planta substrates for CCD1 could possibly be C27 apocarotenoids generated from enzymatic cleavage through CCD4 (role in carotenoid maintenance), CCD7 and/or photo-oxidation, which are then transported from the plastid to the cytosol or possibly C40 carotenoids that are released during senescence or when the plastid membrane is damaged, thus releasing important aroma compounds. Thus the identification of the in vivo substrates has contributed to the understanding the in planta functions of these enzymes
AFRIKAANSE OPSOMMING: Die plant ensiemfamilie van karotenoïedsplitsingdioksigenases (CCDs) kataliseer die oksidatiewe splitsing van karotenoïede en/of apokarotenoïede. Karotenoïede word in plastiede (primêr chloroplaste en chromoplaste) sintetiseer en is betrokke by lig-absorpsie en die beskerming van die fotosintetiese apparaat teen foto-oksidasie. Die apokarotenïede afkomstig van karotenoïede dien onder meer as planthormone, geur- en aromakomponente en om bestuiwers aan te lok. Aangesien apokarotenoïede bydra tot die vrug- en blomgeure van wyn is die C13-verbindings binne wingerd (Vitis vinifera L.) van belang. Al nege lede van die CCD geenfamilie in Arabidopsis kodeer karotenoïedsplitsingsensieme. Die ensiemfamilie sluit 9-sis-epoksidioksigenases (NCEDs), en vier klasse CCD in. NCEDs en CCD7 en 8 is betrokke by die sintese van planthormone, naamlik absissiensuur (ABA) deur NCED en strigolaktone (SL) deur die opeenvolgende aksie van onderskeidelik CCD7 en CCD8. SLe is redelik onlangs as planthormone indentifiseer en is betrokke by ‘n verskeie aspekte van die groei en ontwikkeling van plante. Die rol van SL in inhibisie van vertakking is die beste gekarakteriseerde van hierdie aspekte. CCD1 en CCD4 splits ‘n verskeidenheid karotenoïede om pigmente en aromakomponente te vorm. CCD1 vorm byvoorbeeld β-jonoon en β-damasenoon, beide belangrike kultivar-spesifieke wyngeure. CCD4 vorm weer die pigment en aromakomponente van saffraan en annatto. Die CCD1 ensieme splits die 9,10 (9’,10’) dubbelbindingsetels van verskeie karotenoïede simmetries en vorm een C14-dialdehied en twee C13-produkte. Daar is voorheen melding gemaak van verdere splitsing deur CCD1 by die 5,6 (5’,6’) dubbelbindingsetels van likopeen. Vroeër is getoon dat die CCD1 isovorm wat uit V. vinifera geïsoleer is, naamlik VvCCD1, in vitro seaxantin, luteïen en β-karoteen by die 9,10 (9’,10’) dubbelbindingsetels kon splits, en likopeen by beide die 9,10 (9’,10’) en 5,6 (5’,6’) dubbelbindingsetels. Geen ander VvCCDs is al isoleer en funksioneel gekarakteriseer. VvCCD4a is isoleer, maar geen funksie is bepaal nie. CCD4 ensieme splits ook die 9,10 (9’,10’) dubbelbindingsetels van karotenoïede. Aangesien CCD4 ensieme ‘n plastied-bestemmingspeptied besit behoort dié ensieme konstant toegang tot karotenoïede te hê, wat dui op hul rol in die handhawing van die karotenoïedbalans, terwyl CCD1-ensieme bydra tot die sintese van vlugtige verbindings. Om hierdie hipotese te toets is VvCCD1, VvCCD4a en VvCCD4b uit V. vinifera (kv Pinotage) kDNS isoleer in binne ‘n pTWIN1 proteïenuitdrukkingsvektor kloneer. Die substraatspesifisiteit van elke VvCCD is getoets deur ‘n karotenoïedakkumulerende E. coil stam te transvormeer met ‘n CCD-uitdrukkingsvektor. UPLC-analise is gebruik om karotenoïede wat deur die bakterium sintetiseer is te kwantifiseer en identifiseer, terwyl die apokarotenoïedinhoud en -konsentrasie van die boruimte van die bakteriële kultuur met HS-SPME-GC-MS bepaal is. Verskeie aspekte van die proses is optimaliseer om natuurlike afbreking van karotenoïede te minimeer. Daardeur is verseker dat die apokarotenoïedvorming primêr vanweë die ensiematiese splitsing deur VvCCDs plaasvind en nie deur oksidasie of ander nie-ensiematiese afbreking. Die HS-SPME-GC-MS metings het aangedui dat al drie isovorme fitoëen, likopeen en ε-karoteen kan splits. VvCCD1 kan daarby β-karoteen splits, terwyl VvCCD4a neurosporeen, en VvCCD4b neurosporeen en ζ-karoteen kan splits, beide karotene wat nie betrokke is by fotosintese nie. Dié studie toon dat VvCCD1 die karotenoïede splits wat benodig word vir fotosintese, terwyl beide VvCCD4 isovorme karotenoïede splits wat nie in druiwekorrels gevind word nie. Dit dui op hulle rol in die handhawing van karotenoïedpoele. Die in planta substrate vir CCD1 mag dus die C27-apokarotenoïede wees wat deur CCD4 (as deel van karotenoïedhandhawing), CCD7 en/of foto-oksidasie gevorm word en na die sitosol vervoer word, of moontlik die C40-karotenoïede wat tydens veroudering óf wanner die plastiedmembraan beskadig is in die sitosol vrygestel word. Die identifisering van die in vivo substrate het dus bygedra to die begrip van die in planta funksies van die ensieme.
Assano, Mauro Eidi Villela. "Guides for CCS to UML-RT and UML-RT to CCS conversions". Instituto Tecnológico de Aeronáutica, 2009. http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=940.
Texto completoAl-Ghatam, Rana. "Cleft Care UK (CCUK) : analysis of photographs". Thesis, University of Bristol, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.681748.
Texto completoBojö, Erik y Vincent Edberg. "Koldioxidlagring i Sverige : En studie om CCS, Bio-CCS, DACCS och biokol ur ett 2045-perspektiv". Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-297570.
Texto completoSweden's ambition is to achieve net zero emissions of fossil CO2 by the year 2045. To reach this target, Sweden aims to reduce its emissions by 85%, while so-called supplementary measures will be taken to compensate for the remaining 15%. This study investigates Sweden's work with negative emissions as a complementary measure with a focus on the technologies bio-energy for carbon capture and storage (Bio-CCS in Swedish), Direct air capture for carbon capture and storage (DACCS) and biochar. Carbon capture and storage (CCS), which can help make industrial plants CO2-neutral, has also been studied. During the project, a literature study and interviews with researchers, politicians, industry and company representatives as well as authorities were carried out, which formed the basis of the report. For CCS and Bio-CCS, which include separation of CO2 from point source emissions, there are four different separation strategies called post-, pre-, and oxyfuel combustion as well as chemical looping. Among these, post combustion is highlighted as the most developed. In the case of DACCS, either absorption or adsorption is applied to separate CO2 from the atmosphere. CCS, Bio-CCS and DACCS all have in common that the captured CO2 must be stored in deep geological formations once it has been separated. Biochar is produced by heating biomass in a pyrolysis plant and can be used as a soil improver and carbon sink. Today Sweden has a domestic biochar production on a commercial scale, which means that biochar differs from the other three technologies that have yet to reach that stage of development. However, there are several pilot projects within Bio-CCS and CCS in Sweden. Sweden's well-established bioeconomy means that the conditions are good for biochar and Bio-CCS to contribute to negative emissions in relation to the 2045 target. DACCS, on the other hand, is not considered relevant as a supplementary measure to the year 2045 due to its technical immaturity and high cost. From interviews with researchers, authorities, companies, industry organizations and politicians, it is clear that there is a consensus between the different actors on which factors need to be addressed in order to enable large-scale implementation of the technologies. Common to all technologies is that financial incentives are required to enable large-scale implementation. The CCS technologies also require regulatory changes to facilitate the transport of CO2.
Pérez, Zenteno Betty, Cano María Cañas y Subauste María del Rosario Pastor. "Química General y Orgánica CCSS (MA226), ciclo 2013-1". Universidad Peruana de Ciencias Aplicadas - UPC, 2013. http://hdl.handle.net/10757/271253.
Texto completoPérez, Zenteno Betty, Subauste María del Rosario Pastor y Cano María Cañas. "Química General y Orgánica CCSS (MA226), ciclo 2013-2". Universidad Peruana de Ciencias Aplicadas - UPC, 2013. http://hdl.handle.net/10757/296650.
Texto completoPerez, Zenteno Betty y Cano María Cañas. "Química General y Orgánica CCSS (MA226), ciclo 2014-1". Universidad Peruana de Ciencias Aplicadas - UPC, 2014. http://hdl.handle.net/10757/313668.
Texto completoPerez, Zenteno Betty, Cano María Cañas y Subauste María del Rosario Pastor. "Química General y Orgánica CCSS (MA226), ciclo 2014-2". Universidad Peruana de Ciencias Aplicadas - UPC, 2014. http://hdl.handle.net/10757/324024.
Texto completoChowanietz, Eric Gunther. "Advances in CCDs for X-ray imaging and spectroscopy". Thesis, University of Leicester, 1986. http://hdl.handle.net/2381/35856.
Texto completoBarron, Olivia. "Catalyst Coated Membranes (CCMs) for polymerelectrolyte Membrane (PEM) fuel cells". Thesis, University of the Western Cape, 2010. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_4757_1307336145.
Texto completoThe main objective of this work it to produce membrane electrode assemblies (MEAs) that have improved performance over MEAs produced by the conventional manner, by producing highly efficient, electroactive, uniform catalyst layers with lower quantities of platinum electrocatalyst. The catalyst coated membrane (CCM) method was used to prepare the MEAs for the PEM fuel cell as it has been reported that this method of MEA fabrication can improve the performance of PEM fuel cells. The MEAs performances were evaluated using polarisation studies on a single cell. A comparison of polarisation curves between CCM MEAs and MEAs produced in the conventional manner illustrated that CCM MEAs have improved performance at high current densities (>
800 mA/cm2).
Naghizadeh-Khouei, Jaber. "Application of CCDs (Charge Coupled Devices) to polarimetry and spectropolarimetry". Thesis, University of Glasgow, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266678.
Texto completoGutiérrez, Ortega Angel Eduardo. "Carbon dioxide capture and utilization by VPSA: a sustainable development". Doctoral thesis, Universitat Ramon Llull, 2019. http://hdl.handle.net/10803/666277.
Texto completoEl continuo incremento en el uso de las energías renovables y los objetivos para la reducción de las emisiones de dióxido de carbono (CO2) requieren cambios significativos tanto a nivel técnico como a nivel normativo. La captura y utilización de dióxido de carbono (CCU, por sus siglas en inglés) es un método eficaz para lograr la mitigación del CO2 y al mismo tiempo mantener de forma segura los suministros de energía. Si bien la demanda en la reducción de las emisiones de CO2 está aumentando, la eficiencia energética y el costo de los procesos de captura de CO2 siguen siendo un factor limitante para las aplicaciones industriales. En el presente trabajo se estudia el uso del proceso de adsorción por oscilación de presión y vacío (VPSA, por sus siglas en inglés) con adsorbentes de alta selectividad para separar el CO2 de los gases de combustión, como un método alternativo al proceso de absorción tradicional con aminas. Se realizó una selección entre diez adsorbentes comerciales para la captura de CO2, incluidos los tamices moleculares de carbón (CMS, por sus siglas en inglés) y las zeolitas. Se determinaron las propiedades texturales, la capacidad de adsorción y el comportamiento cíclico de los adsorbentes para comparar su comportamiento en la separación del dióxido de carbono del nitrógeno. Posteriormente, se midieron las isotermas de adsorción de un solo componente en la balanza de suspensión magnética a cuatro temperaturas diferentes (283, 298, 232 y 323 K) y en un amplio margen de presiones (de 0 a 10 bara). Los datos sobre las isotermas de componentes puros se correlacionaron utilizando los modelos Toth, Sips y Dual Site Langmuir (DSL). Se diseñaron y construyeron tres unidades de laboratorio para realizar la experimentación del proceso VPSA. La primera unidad se usó para la producción y el control de mezclas gaseosas de CO2 y N2 a una presión máxima de 9 bara. En la segunda unidad se llevaron a cabo las mediciones de los equilibrios de adsorción con una mezcla de composición semejante a la de los gases de combustión (15/85% de CO2/N2 v/v). Con el programa Aspen Adsorption® se simuló el sistema experimental, obteniendo que las predicciones del modelo DSL reproducen suficientemente bien los resultados experimentales de las curvas de ruptura y los perfiles de temperatura en el lecho fijo. Además, se hicieron estudios dinámicos para evaluar las zeolitas 5ABL y 13XBL usando el proceso VPSA discontinuo para la separación CO2 de N2. La unidad dos se dotó de un sistema de control con una interfaz PLC que facilita su operación y automatización, usando una estrategia de control desarrollada en este trabajo. En base a los resultados obtenidos con la unidad dos y su simulación, se encontró que la zeolita 13XBL era la que la más adecuada para el proceso VPSA propuesto. Los resultados experimentales se usaron para alimentar el diseño de la unidad dos en Aspen Adsorption® y validar el modelo usado que a su vez se utilizó para realizar un diseño completo de experiencias de dos factores (26) en configuración discontinua. La tercera unidad experimental consta de tres columnas de adsorción donde se incluyó la estrategia de control desarrollada para la unidad dos y se incluyó la recirculación de las corrientes ricas en N2 y CO2. Se llevaron a cabo tres experimentos en el proceso VPSA cíclico de 8 pasos cambiando los parámetros de control del proceso automatizado y usando la zeolita 13XBL como adsorbente. Se logró satisfacer los objetivos en términos pureza de CO2 (>80%) y consumo energético (<2.5 kW·h/kgCO2). Sobre la base de los resultados experimentales y simulados, se realizó una demostración a escala piloto de la captura de CO2 del gas de combustión de una caldera de vapor en una planta industrial situada en la provincia de Barcelona. La planta piloto de captura de CO2 consta de un proceso de pretratamiento de los gases de combustión, una unidad VPSA acoplada con una unidad de deshumidificación y una aplicación industrial para el uso del CO2. En la unidad de pretratamiento, los gases de combustión se enfriaron de 70ºC a 25ºC y desnitrificaron. En la unidad de deshumidificación, se eliminó el vapor de agua del gas desnitrificado mediante adsorción con alúmina. Posteriormente, se empleó el proceso VPSA de ocho pasos con tres columnas usando zeolita 13XBL, en la que se obtuvo una corriente enriquecida de CO2 de 85 a 95% de pureza de CO2, con una recuperación del 48 a 56%, una productividad de 0.20 a 0.25 gCO2/(gads٠h-) y un consumo energético de 1.48 kWh/ kgCO2. El CO2 recuperado se usó para reemplazar el uso de ácidos minerales en la etapa de regulación del pH de la planta de tratamiento de aguas residuales existente en la fábrica. Por lo tanto, el proceso desarrollado es una alternativa efectiva para separar el CO2 de los puntos de emisión de gases de combustión industrial y utilizar el CO2 recuperado como materia prima para aplicaciones industriales. El uso de CO2 capturado en estas fuentes de emisión tiene dos ventajas claras. Por un lado, redujeron las emisiones de CO2 a la atmósfera. Por otro lado, permitió reutilizar y transformar un contaminante ambiental en compuestos neutros.
The continuously increasing share of renewable energy sources and European Union targets for carbon dioxide (CO2) emission reduction need significant changes both on a technical and regulatory level. Carbon dioxide capture and utilization (CCU) is an effective method for achieving CO2 mitigation while simultaneously keeping energy supplies secure. While the demand for reduction in CO2 emissions is increasing, the improvement of energy-efficiency and the cost of CO2 capture processes remains a limiting factor for industrial applications. The present work studies the Vacuum Pressure Swing Adsorption process (VPSA) using high selectivity adsorbents for separating CO2 from flue gas as an alternative method to the traditional absorption process with amines. A screening analysis for CO2 capture was conducted on ten commercial adsorbents, including carbon molecular sieves (CMS) and zeolites. The textural properties, the adsorption capacities and the adsorbent cyclic behaviors were determined to compare their performance in the context of CO2 separation from nitrogen (N2). Subsequently, the single component adsorption isotherms were measured in a magnetic suspension balance at four different temperatures (283, 298, 232 and 323 K) and over a large range of pressures (from 0 to 10 bara). Data on the pure component isotherms were correlated using the Toth, Sips and Dual Site Langmuir (DSL) models. Three laboratory units were designed and built to perform the VPSA experiments. The first was used for the production and control of CO2 and N2 gas mixtures at a maximum pressure of 9 bara. Adsorption equilibrium measurements with a mixture that resembles the composition of combustion gases (15/85% CO2/N2 v/v) were obtained using the second unit that was built. Afterwards, the Aspen Adsorption® program was used to simulate the experimental system, where the predictions of the DSL model agree with the breakthrough curves and the temperature profiles of the experimental fixed bed results. In addition, dynamic studies were performed to evaluate the zeolites 5ABL and 13XBL using a discontinuous VPSA process for the CO2 separation of N2. The process was automated and operated with a PLC interface, using a control strategy developed in this work. Based on the comparison results of the zeolites, it was found that the 13XBL zeolite was the one most suitable for the proposed VPSA process. The experimental results were verified by numerical simulations in the Aspen Adsorption® software and the validated model was used to perform a two-factor complete design of experiments (26) using 13XBL simulations in a discontinuous configuration. The third experimental unit was built with three adsorption columns which included the developed control strategy and the recirculation of N2 and CO2 rich streams. Three experiments were carried out using zeolite 13XBL as an adsorbent for the proposed 8-step VPSA cyclic process by changing the control parameters of the automated process. Through the experiments, the objectives were achieved in terms of CO2 purity (> 90%) and energy consumption (> 2.5 kWh/kgCO2). Based on the experimental and simulated results, a pilot-scale demonstration plant for CO2 capture from flue gas in an existing industrial boiler in a Spanish company was carried out. The pilot-scale CO2 capture plant consisted of a pre-treatment process for flue gases, a VPSA unit coupled with a dehumidification unit and an industrial application for the use of CO2. In the pretreatment unit the flue gases were cooled from 70°C to 25°C and then denitrified. In the dehumidification unit, the water vapor was removed from the denitrified gas by adsorption with alumina. Subsequently, the three columns’ eight-step VPSA process developed with zeolite 13XBL was used. The results were a product purity of 85 to 95% of CO2, a recovery of 48 to 56%, a productivity of 0.20 to 0.25 gCO2/(gads٠h) and an energy consumption of 1.48 kWh/kgCO2. The recovered CO2 was then used to replace the use of mineral acids in the pH regulation stage of the existing wastewater treatment plant. Therefore, it is concluded that the developed process is an effective alternative to separate the CO2 from the emission points of industrial combustion gases and to use the recovered CO2 as raw material for industrial applications. The use of CO2 captured in these emission sources has two clear advantages. On the one hand, it reduces the CO2 emissions to the atmosphere. On the other hand, it allows the reuse and transformation of an environmental pollutant into neutral compounds.
Bøe, Lisbeth Jeanette. "Life cycle assessment of novel CCS technologies". Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-22885.
Texto completoMonroy-Borja, Raul. "Planning proofs of correctness of CCS systems". Thesis, University of Edinburgh, 1997. http://hdl.handle.net/1842/584.
Texto completoMoschese, Giovanni. "Implementazione di Semantiche Operazionali per MULTI-CCS". Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amslaurea.unibo.it/3132/.
Texto completoDjurberg, Robert. "Practical implementation of Bio-CCS in Uppsala : A techno-economic assessment". Thesis, KTH, Energiteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-277820.
Texto completoFör att minska den globala uppvärmningen har infångning och lagring av koldioxid från förbränning av biomassa (Bio-CCS) föreslagits som ett effektivt och nödvändigt verktyg. Förbränning av biomassa och infångande av koldioxid från samma process leder till negativa nettoutsläpp, vilket minskar koncentrationen av koldioxid (CO2) i atmosfären. Infrastrukturen kring värme- och kraftproduktion i Sverige har omvandlats till att använda biomassa och avfall. Bio-CCS har potential att vara en nyckelfaktor för att göra värmesektorn koldioxidnegativ och det svenska energisystemet mer hållbart. Denna studie har analyserat hur Bio-CCS praktiskt kan implementeras i Uppsalas kraftvärmeverk. I analysen utvärderades tre infångningstekniker av typen kemisk absorption baserat på energibehov, potential att minska utsläpp och ekonomi. Teknikerna är aminprocessen, chilled ammonia process (CAP) och hot potassium carbonate process (HPC). Processen för varje teknik modellerades genom att utföra mass- och energibalansberäkningar vid infångning av CO2 från rökgasströmmarna producerade av produktionsenheterna som förbränner biomassa. Modelleringen gjorde det möjligt att hitta specifika värme-, kyl- och elbehov för teknikerna. Med dessa data var det möjligt att bedöma den potentiella utsläppsminskningen och kostnaden för infångning för de olika konfigurationer som har analyserats. En lösning föreslogs i hur en infångningsanläggning kan integreras i kraftvärmeverkets system när det gäller markanvändning, tillgänglig värmeförsörjning till processen och möjligheter till återvinning av spillvärme. Om värmeåtervinning inte utnyttjas visar resultaten att aminprocessen är den mest kostnadseffektiva tekniken när den implementeras på rökgasströmmen från avfallsblocken. När man använder värmeåtervinning för att använda spillvärme för att värma fjärrvärmevattnet blir CAP mer kostnadseffektivt än aminprocessen. Ytterligare förbättringar kan uppnås genom att kombinera rökgasströmmar från avfallsblocken för att öka antalet timmar per år infångning kan utföras. Anläggningen i Uppsala kan då årligen fånga 200 000 ton CO2. Den totala kostnaden för Bio-CCS kommer att vara cirka 900 SEK per ton infångad CO2.
Ranatunga, Lalith Priyadarshi. "Processes synthesis by solving context equations in CCS". Thesis, University of Kent, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328086.
Texto completoAlexandrakis, Mary-Irene y Bret S. (Bret Sanford) Smart. "Marine transportation for Carbon Capture and Sequestration (CCS)". Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/60794.
Texto completoCataloged from PDF version of thesis.
Includes bibliographical references (p. 115-118).
The objective of this report is to determine whether opportunities to use liquefied carbon dioxide carriers as part of a carbon capture and storage system will exist over the next twenty years. Factors that encourage or discourage the use of vessels are discussed. This study concludes that liquefied carbon dioxide carriers can potentially be used in both the near and long term under different sets of circumstances.
by Mary-Irene Alexandrakis and Bret S. Smart.
S.M.in Transportation
Nyberg, Jesper. "Kostnaden för CCS vid Cementa AB i Degerhamn". Thesis, Linnéuniversitetet, Institutionen för biologi och miljö (BOM), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-54270.
Texto completoCCS, Carbon Capture and Storage, involves the capture and storage of carbon dioxide from large point sources. This makes the cement industry suitable for the implementation of CCS. Large parts of the industry's carbon dioxide emissions cannot be eliminated by other means. The cost of monoethanolamine-based post-combustion capture and subsequent transport and storage of the carbon dioxide at the cement factory Cementa AB in Degerhamn was studied. This study's cost estimates are based on published data on the cost of carbon capture at the Norwegian cement plant Norcem Brevik, and on published data on the cost of transport of carbon dioxide to a storage site in the Baltic Sea. Cementa Degerhamn’s carbon dioxide emissions can be reduced by 5.4 million tons over a 25 year period to a cost of 2.2 billion SEK. The result, expressed in Cost of CO2 avoided, gives a cost of 890 SEK/ton CO2. A sensitivity analysis shows that of the examined parameters, the size of the carbon dioxide emissions and the cost of use and maintenance are the most important for the size of Cost of CO2 avoided. Further studies are required for a more accurate calculation of the cost of CCS at Cementa Degerhamn.
Paseková, Markéta. "Návrh strategie CSR společnosti CCS, s. r. o". Master's thesis, Vysoká škola ekonomická v Praze, 2015. http://www.nusl.cz/ntk/nusl-206967.
Texto completoEid, Rami Samir. "Numerical modelling of geophysical monitoring techniques for CCS". Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/22049.
Texto completoMarzola, Alex. "Studio della metanazione della CO2". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.
Buscar texto completoKabak, Yildiray. "Semantic Interoperability Of The Un/cefact Ccts Based Electronic Business Document Standards". Phd thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610689/index.pdf.
Texto completoKeay, Adam. "An investigation of fine structure effects in CCDs developed for JET-X". Thesis, University of Leicester, 1997. http://hdl.handle.net/2381/30684.
Texto completoTai, Chih-Che, Karin J. Keith y Jamie Price. "Integrating Hands-On STEM Activities with Math and Reading in the CCSS". Digital Commons @ East Tennessee State University, 2014. https://dc.etsu.edu/etsu-works/3282.
Texto completoRobertson, Laura, Chih-Che Tai, Renee Rice Moran, LaShay Jennings, Kari Eubanks y S. Honeycutt. "Photosynthesis: An Integrated, Hands-On Approach Supporting the NGSS and CCSS ELA". Digital Commons @ East Tennessee State University, 2017. https://dc.etsu.edu/etsu-works/3444.
Texto completoAbramchyk, Yuliya. "Aspetti tecnici ed economici della cattura e stoccaggio dell’anidride carbonica e potenziali effetti sul cambiamento climatico". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/17777/.
Texto completoWang, Haibin. "Solidification and storage of carbon captured on ships (CCS)". Thesis, University of Strathclyde, 2017. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=27861.
Texto completoArnsbjer, Felicia y Clara Fors. "Bio-CCS metoden i Sverige : kvalitativ innehållsanalys av samhällsaktörer". Thesis, Linköpings universitet, Tema Miljöförändring, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-175745.
Texto completoThis study aims to investigate the approach of relevant actors to achieving climate neutrality within Sweden with bio-CCS as a measure. A qualitative content analysis of referrals from the climate policy inquiry report Vägen till en klimatpositiv framtid carried out with a multi-level perspective theory to study the position of these actors. The actors' views are identified and analyzed and compared to previous research. The results show that there are divided opinions among actors regarding bio-CCS and what is needed to promote the technology. The main obstacles to implementing bio-CCS as a measure are considered to be economic and political aspects, other factors also have a significant role in influencing Sweden to achieve climate neutrality by 2045.
Petriconi, Elodie de. "Chorioretinopathia centralis serosa (CCS): klinisch-angiographische Befunde und Risikofaktoren". [S.l. : s.n.], 2008. http://nbn-resolving.de/urn:nbn:de:bsz:289-vts-64534.
Texto completoGANDIGLIO, MARTA. "Modeling, design, testing and analysis of biogas-fed SOFC power plants". Doctoral thesis, Politecnico di Torino, 2017. http://hdl.handle.net/11583/2674727.
Texto completoVarvel, Nicholas H. "THE ROLE OF BETA-AMYLOID AND INFLAMMATION IN NEURONAL CELL CYCLE EVENTS IN ALZHEIMER'S DISEASE MOUSE MODELS". Case Western Reserve University School of Graduate Studies / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=case1226609920.
Texto completoLiu, Yue. "Two Dimensional PIC/MCC Simulations of RF CCPs with a Dielectric Side Wall". Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066338.
Texto completoA Cartesian-coordinate two-dimensional electrostatic Particle-in-cell/Monte-Carlo Collision (PIC/MCC) plasma simulation code is presented, including a new treatment of charge balance at dielectric boundaries. It is used to simulate an Ar plasma in a symmetric radiofrequency capacitively-coupled parallel-plate reactor with a thick dielectric side-wall. The dielectric side-wall effectively shields the plasma from the enhanced electric field at the powered-grounded electrode junction, which has previously been shown to produce locally enhanced plasma density. Nevertheless, enhanced electron heating is observed in a region adjacent to the dielectric boundary, leading to maxima in ionization rate, plasma density and ion flux to the electrodes in this region. The electron heating components are derived from the PIC/MCC simulations and show that this enhanced electron heating results from increased Ohmic heating in the axial direction as the electron density decreases towards the side-wall. We investigated the validity of different analytical formulas to estimate the Ohmic heating by comparing them to the PIC results. The x component electron heating near the corners was observed at higher driving frequency, which is caused by a significant RF oscillating field in the x direction
Tai, Chih-Che, Karin Keith y Jamie Price. "Sound and Waves: An Integrated K–8 Approach Supporting the NGSS and CCSS". Digital Commons @ East Tennessee State University, 2015. https://dc.etsu.edu/etsu-works/1000.
Texto completoDa, Rocha João Miguel. "Recherche de matière sombre légère avec des CCDs de l'expérience DAMIC à Snolab". Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS517.
Texto completoA large number of astrophysical and cosmogical observations promote the fact that 80\% of the matter in the Universe is made of an unknown dark matter weakly interacting with the ordinary matter, the dark matter. However little is known about it, and its nature remains one of the unknown of modern physics. Nowadays the vast majority of the direct detection dark matter experiments didn’t detect anything. The Dark Matter In CCDs (DAMIC) experiment at SNOLAB is one of them, and uses Charged Coupled Devices, silicon semi-conductors, as detectors. My work within the DAMIC collaboration was mainly focused on the construction of the radioactive background model with the GEANT4 toolkit. To start we will introduce the DAMIC at SNOLAB experiment and present the simulation of the experiment, from the generation of primary particle to the simulation of the detector behavior to the energy deposit of the particles simulated. Then I will show you the origins and characteristics of the different radioactive isotopes present in the experiment, information that we retrieved from papers, screening measurement and analysis. To finish I will present the radioactive background model coming from the fit of the simulations to the data and the sensibility of the DAMIC experiment