Дисертації з теми "Hammer energy"
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Roberts, Adam David. "The hydrodynamics of the water hammer energy system." Thesis, Bournemouth University, 2017. http://eprints.bournemouth.ac.uk/29227/.
Повний текст джерелаSakr, Marwa [Verfasser]. "Women's Hammer Throw : Measurement Information System And Kinetic Energy of Body Segments and Hammer Head / Marwa Sakr." Konstanz : Bibliothek der Universität Konstanz, 2012. http://d-nb.info/102941596X/34.
Повний текст джерелаKihlström, Jessica. "Experimental assessment of fluid hammer prediction algorithms." Thesis, Linnéuniversitetet, Sjöfartshögskolan (SJÖ), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-74921.
Повний текст джерелаVätskeslag är ett problem som kan ge katastrofala följder och många ingenjörer saknar kompetens när det handlar om att förutspå det. Målet med denna studie är att utvärdera olika metoder för att utvärdera hur betydande tryckstötarna blir i ett system samt att verifiera analytiska data gentemot ett experiment. Datan för experimentet fås från en testrigg som består av tuber, ventiler och instrumentering. Av litteraturstudien framgår att det finns flertalet algoritmer, analytiska beräkningar och transienta numeriska mjukvaror (simuleringsprogram) till detta syfte. I den här studien värderas och jämförs vätskeslag genom analytiska och numeriska analyser med hjälp av mjukvarupaketet Maple. 2017 Utvärdering av resultaten visar att de varierar med de olika metoderna. Experimentet gav de lägsta tryckstötarna och simuleringarna gav de högsta. Därför rekommenderar jag att för säkerhets skull använda simuleringsprogram.
Okuchaba, Boma Jeremiah. "Development of a model to calculate mechanical specific energy for air hammer drilling systems." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2804.
Повний текст джерелаSchmidt, Marcel [Verfasser], Hans-Werner [Akademischer Betreuer] Hammer, and Jens [Akademischer Betreuer] Braun. "Effective field theories for low-energy reactions / Marcel Schmidt ; Hans-Werner Hammer, Jens Braun." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2019. http://d-nb.info/1188817744/34.
Повний текст джерелаHammer, Jakob [Verfasser], and Peter [Akademischer Betreuer] Hommelhoff. "A microwave chip-based beamsplitter for guided low-energy electrons / Jakob Hammer. Betreuer: Peter Hommelhoff." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2014. http://d-nb.info/106775251X/34.
Повний текст джерелаArizcun, Zúñiga Paula María. "Ram pump hydraulic air test. Pressure conditions and flow measurements: Experimental research and case study." Thesis, Högskolan i Gävle, Avdelningen för bygg- energi- och miljöteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-26897.
Повний текст джерелаMull, Jean-François. "Contribution à la modélisation du comportement dynamique du système de production composé de la machine et de ses outillages durant la phase de mise en forme. Application aux machines pilotées en énergie : de la presse à vis au pilon contre-frappe." Thesis, Paris, HESAM, 2020. http://www.theses.fr/2020HESAE057.
Повний текст джерелаThe issue in forging operations is to obtain final product with controlled geometries and microstructure. Several phenomena influence the process, of which one is the machine behavior. The high forging load and the important deceleration of moving parts during billet deformation cause dynamical phenomena which imply energy losses. For energy driven machines, as screw presses and hammers, the measurement of forging load and moving parts displacements can be complex, because of the extreme conditions concerning temperature, impact velocity and developed energy. Therefore, only theoretical models without direct links with reality have been proposed to represent machine behavior. The purpose of this work is to develop a new methodology to model the machine and tools behavior, in order to improve the predictivity of forging process simulations. The model and its parameters are obtained from experimental measurements, which provides a tailored solution, specifically adapted to the {machine + tools} system and applicable to any energy driven machines. The numerical methods and measurement protocols needed to apply the methodology are developed for three machine technologies. The predictive capacity of the model is then validated, step-by-step for different configurations, until reaching the modelling of a counterblow hammer. Simultaneously, the model is exploited to quantify process efficiency and better understand the energy consumption during forging operations
Hamlen, Sarah Ann. "An evaluation of concerns of extension field faculty in western states regarding renewable energy education as it pertains to programmatic design and implementation." Thesis, Montana State University, 2012. http://etd.lib.montana.edu/etd/2012/hamlen/HamlenS0512.pdf.
Повний текст джерелаKinnunen, S. (Sanni). "Molecular mechanisms in energy metabolism during seasonal adaptation:aspects relating to AMP-activated protein kinase, key regulator of energy homeostasis." Doctoral thesis, Oulun yliopisto, 2018. http://urn.fi/urn:isbn:9789526219554.
Повний текст джерелаTiivistelmä Useat luonnonvaraiset eläinlajit ovat fysiologisesti sopeutuneet ravinnonsaannin vuodenaikaisiin vaihteluihin. Vuodenaikaisrytmiin kytketty rasvakudoksen määrän vaihtelu ja siihen liittyvät aineenvaihdunnalliset muutokset tarjoavat mielenkiintoisen tutkimuskohteen ruumiinpainon säätelyn ja energiatasapainon ylläpidon molekulaaristen mekanismien selvittämiseen. Oleellinen osa fysiologista sopeutumista ovat muutokset energia-aineenvaihduntaa säätelevien proteiinien ekspressio- ja aktiivisuustasoissa. Yksi keskeinen elimistön energiatasapainoa kontrolloiva entsyymi on AMP-aktivoituva proteiinikinaasi (AMPK). AMPK toimii solunsisäisenä energiasensorina ja säätelee energiametaboliaa koko kehon tasolla. Tässä väitöskirjatutkimuksessa selvitettiin talviadaptaation vaikutusta AMPK:n ja sen kohdemolekyylin, rasvahappojen biosynteesiä säätelevän asetyyli-CoA karboksylaasin (ACC), ilmenemiseen ja aktiivisuuteen eri kudoksissa. Mallieläiminä käytettiin kahta eri talvehtimisstrategian omaavaa ja eri lailla ruumiinpainoaan säätelevää lajia, kääpiöhamsteria ja supikoiraa. Lisäksi tutkittiin pitkäaikaisen talvipaaston vaikutusta supikoiran luustolihakseen. Tulokset osoittivat, että molemmilla lajeilla AMPK- ja ACC-pitoisuuksissa on vuodenaikaisia eroja erityisesti rasvakudoksessa. Supikoiralla AMPK:n määrä väheni talviadaptaation seurauksena, kun taas kääpiöhamstereilla talviakklimatisaatio johti korkeampaan AMPK-pitoisuuteen rasvakudoksissa. ACC-pitoisuus puolestaan säilyi samana tai oli korkeampi talviadaptoituneilla yksilöillä. Havaitut muutokset AMPK:n ja ACC:n ilmenemisessä kuvastavat supikoiran ja kääpiöhamsterin eroja talvehtimisessa ja havainnollistavat entsyymien oleellista osaa rasvavarastojen vuodenaikaisessa säätelyssä ja käytössä, mikä on edellytys eläinten selviämiselle yli talven niukkuuden. Lisäksi havaittiin talviadaptoituneen supikoiran olevan melko resistentti 10 viikon paastolle tutkittujen parametrien suhteen. AMPK- ja ACC-pitoisuus tai aktiivisuus ei muuttunut aineenvaihdunnallisesti oleellisissa kudoksissa (rasvakudos, maksa, hypotalamus) paasto- ja kontrolliryhmän välillä. Supikoiran lihasten toimintakyky vaikuttaisi säilyvän, sillä insuliinisignalointiin liittyvien entsyymien pitoisuus, lihasten solutyyppikoostumus tai energiavarastot eivät muuttuneet paaston myötä. Tämä tutkimus tarjoaa uutta tietoa proteiinitason muutoksista osana fysiologista sopeutumista
Hammer, Carola Verfasser], Gunther [Akademischer Betreuer] Friedl, and Martin [Akademischer Betreuer] [Moog. "Einflüsse des europäischen Emissionshandels auf Produktions- und Investitionsentscheidungen bei Strom- und Wärmeerzeugern / Carola Hammer. Gutachter: Martin Moog. Betreuer: Gunther Friedl." München : Universitätsbibliothek der TU München, 2011. http://d-nb.info/1019589884/34.
Повний текст джерелаLang, Jens [Verfasser], Gudula [Akademischer Betreuer] Rünger, Gudula [Gutachter] Rünger, and Fred [Gutachter] Hamker. "Energie- und Ausführungszeitmodelle zur effizienten Ausführung wissenschaftlicher Simulationen / Jens Lang ; Gutachter: Gudula Rünger, Fred Hamker ; Betreuer: Gudula Rünger." Chemnitz : Universitätsbibliothek Chemnitz, 2015. http://d-nb.info/1213812070/34.
Повний текст джерелаHammer, Manfred Richard [Verfasser], and Jan [Akademischer Betreuer] Knippers. "Recyclingkunststoffe in Gebäuden - Voraussetzungen und Anwendungen : Auswirkungen auf die ökologische Nachhaltigkeit eines Bauwerks durch den Einsatz von Produkten aus thermoplastischen Recyclingkunststoffen / Manfred Richard Hammer ; Betreuer: Jan Knippers." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2017. http://d-nb.info/1150704748/34.
Повний текст джерелаAl-Haddad, Ahmed Sukur Hameed Verfasser], Yong [Akademischer Betreuer] Lei, Michael [Gutachter] [Köhler, and Pu-Xian [Gutachter] Gao. "Large area of ultrathin alumina membranes toward innovative heterogeneous nanostructure arrays for solar energy conversion / Ahmed Sukur Hameed Al-Haddad ; Gutachter: Michael Köhler, Pu-Xian Gao ; Betreuer: Yong Lei." Ilmenau : TU Ilmenau, 2016. http://d-nb.info/1178171981/34.
Повний текст джерелаAl-Haddad, Ahmed [Verfasser], Yong [Akademischer Betreuer] Lei, Michael [Gutachter] Köhler, and Pu-Xian [Gutachter] Gao. "Large area of ultrathin alumina membranes toward innovative heterogeneous nanostructure arrays for solar energy conversion / Ahmed Sukur Hameed Al-Haddad ; Gutachter: Michael Köhler, Pu-Xian Gao ; Betreuer: Yong Lei." Ilmenau : TU Ilmenau, 2016. http://nbn-resolving.de/urn:nbn:de:gbv:ilm1-2016000479.
Повний текст джерелаAl-Haddad, Ahmed [Verfasser], Yong Akademischer Betreuer] Lei, Michael [Gutachter] [Köhler, and Pu-Xian [Gutachter] Gao. "Large area of ultrathin alumina membranes toward innovative heterogeneous nanostructure arrays for solar energy conversion / Ahmed Sukur Hameed Al-Haddad ; Gutachter: Michael Köhler, Pu-Xian Gao ; Betreuer: Yong Lei." Ilmenau : TU Ilmenau, 2016. http://d-nb.info/1178171981/34.
Повний текст джерелаGreen, Anna. "Hållbar energianvändning i svensk stadsplanering : Från visioner till uppföljning av Hammarby Sjöstad och Västra Hamnen." Doctoral thesis, Linköpings universitet, Tema teknik och social förändring, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-5627.
Повний текст джерелаIn this thesis I examine how issues regarding sustainable energy use are handled in the development of two city districts in two of Sweden’s largest cities: Hammarby Sjöstad in Stockholm and Västra Hamnen in Malmö. The political goal was to build apartments with renewable energy supply and restricted energy use. The planning processes are analyzed from plans and visions to the evaluation phase. Both areas were meant to be outstanding examples of ecological housing development. The documentation pertaining to the objectives in both projects states that, firstly, new technology will contribute to the realisation of the goals, and, secondly, that the residents’ way of living will be decisive for whether the energy objectives are reached or not. The planning of Hammarby Sjöstad village was executed by the public administration of Stockholm City, and the planning of Västra Hamnen was carried out in cooperation with the Bo01-organisation. Deregulations took place in many areas in Sweden in the 1990s, for example subsidies for housing development decreased and the market for electricity was deregulated. This led to the involvement of privately owned buildingproprietors and energy companies in the projects. These actors partly had other interests than the politicians in that the private companies wanted to use time tested technology with new technology mainly as a “showcase”. The planning in Stockholm was characterized by objective oriented steering while the project in Malmö was characterized by consultations with the goal of reaching consensus in questions concerning the goals and design of the project’s energy solutions. In both these areas the solutions for energy supply became large-scale. This thesis shows that the organization of the planning- and building processes and the extra subsidies from the government to environmentally friendly solutions affected the results. One conclusion is that when the building proprietors were not invited to partake in the planning process and was dissatisfied, for example with the goal for reduced energy use (Hammarby Sjöstad), they formed a hindering coalition and took over power in the process. Irrespective of if the energy goals were decided in consensus or not, the lifecycle perspective was not given priority from the building proprietors’ side, for example, large windows were chosen while installations for individual metering were, in general, not chosen and the apartments were well equipped with prosperous consumers in focus. Here the interests of the building proprietors and the interests of the municipalities partly coincided, as the buildings proprietors wanted to build for prosperous groups and the municipalities, in one way, saw that these households could increase the taxes for the municipality. One conclusion is that criteria-driven governing, for example trough competition, can stimulate building proprietors to contribute with an extra effort and test new technology in separate houses. No residents took part in the planning of either district. In both city districts some residents have problems with deficient warmth and comfort which they attribute to an excessively short time for construction, negligence and sometimes lack of competence. Follow-up of the projects is connected to the subsidies given to the projects from the government and the EU-level.
Tian, Zhenjiao. "Oxidation and Reduction Process for Polycyclic Aromatic Hydrocarbons and Nitrated Polycyclic Aromatic Hydrocarbons." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1228333650.
Повний текст джерелаBONNEFOY, Olivier. "Influence des cristaux d'hydrates de gaz ou de glace sur la perméabilité d'un milieu poreux." Phd thesis, Ecole Nationale Supérieure des Mines de Saint-Etienne, 2005. http://tel.archives-ouvertes.fr/tel-00009658.
Повний текст джерелаLa deuxième partie est consacrée aux expériences. Leur but est de mesurer la perméabilité d'un sédiment contenant des cristaux. Pour nous rapprocher des conditions géologiques naturelles, les cristaux sont réalisés en l'absence de phase gazeuse. Il s'avère que les hydrates se forment de manière très hétérogène dans le milieu poreux et ceci rend les mesures non représentatives. Nous pensons que ce résultat est général et qu'à l'échelle de temps du laboratoire, la formation d'hydrates de gaz répartis uniformément dans un milieu poreux est très difficile. Pour contourner cette difficulté, nous montrons de manière théorique que les cristaux de glace ont un comportement analogue aux cristaux d'hydrate (du point de vue des forces de Van der Waals qui gouvernent l'agglomération). Ceci nous permet de calculer la constante de Hamaker des hydrates. La deuxième série d'expériences s'intéresse donc à la perméabilité d'un milieu poreux non consolidé et sous contrainte dont les pores sont occupés par des cristaux de glace. Deux populations de grains de silice sont utilisées pour former le milieu poreux : 3 mm et 200 microns. Avec les gros grains, les résultats font apparaître deux seuils : pour des saturations plus faibles que le seuil inférieur, la présence des cristaux n'affecte pas la perméabilité. Pour des saturations plus grandes que le seul supérieur, la perméabilité est quasiment nulle (phénomène de percolation). Entre les deux, la perméabilité décroît exponentiellement en fonction de la saturation. Avec les grains fins, la perméabilité décroît avec la même vitesse.
La dernière partie est une étude numérique sur le champ Mallik. Après avoir posé les équations décrivant les transferts massiques et de chaleur dans l'espace et au cours du temps, nous étudions un cas limite unidimensionnel. Ceci nous permet de voir l'influence de la courbe 'Perméabilité = f(saturation)' obtenue expérimentalement sur la quantité de gaz produite. Le code proposé permet également d'évaluer différents scénarios de production, dont la dépressurisation assistée par formation de glace.
Ingale, Sagar Govindrao. "Hammer Energy Ratios of Different Spt Setups Using Indigenous Hammer Energy Measurement Apparatus." Thesis, 2020. https://etd.iisc.ac.in/handle/2005/4620.
Повний текст джерелаChen, Meng-Chu, and 陳孟助. "The Influence of Hammer Type on Standard Penetration Test Energy Transmission." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/48901608273256004686.
Повний текст джерелаГоробець, Ігор Вікторович. "Удосконалення конструкції вузлів та деталей однороторної молоткової дробарки". Магістерська робота, 2020. https://dspace.znu.edu.ua/jspui/handle/12345/2735.
Повний текст джерелаUA : Виконаний аналіз існуючого обладнання для подрібнення крихких матеріалів, проаналізовані переваги та недоліки існуючих технічних рішень. Запропонований варіант модернізації однороторної молоткової дробарки. Проведене теоретичне дослідження залежності створюваної енергії руйнування пекового коксу від прийнятих конструктивних та технологічних параметрів дробарки. Виконане дослідження запропонованої конструкції молотка на міцність і деформацію в системі APM FEM.
EN : The analysis of existing equipment for grinding brittle materials is carried out, the advantages and disadvantages of existing technical solutions are analyzed. The proposed upgrade option for a single-rotor hammer crusher. A theoretical study of the dependence of the generated fracture energy of pitch coke on the accepted design and technological parameters of the crusher was carried out. A study of the proposed hammer design for strength and deformation in the APM FEM system was carried out.
Amad, Abdulkarim Abdulmaged. "Zum Einfluss unterschiedlicher Behandlungsverfahren und Zusatzstoffe auf ernährungsphysiologische Parameter und Leistung wachsender Broiler nach Verabreichung weizenbetonter Futtermischungen." 2001. http://hdl.handle.net/11858/00-1735-0000-0006-AB8E-D.
Повний текст джерела