Littérature scientifique sur le sujet « The possible concrete process of the Good »
Créez une référence correcte selon les styles APA, MLA, Chicago, Harvard et plusieurs autres
Consultez les listes thématiques d’articles de revues, de livres, de thèses, de rapports de conférences et d’autres sources académiques sur le sujet « The possible concrete process of the Good ».
À côté de chaque source dans la liste de références il y a un bouton « Ajouter à la bibliographie ». Cliquez sur ce bouton, et nous générerons automatiquement la référence bibliographique pour la source choisie selon votre style de citation préféré : APA, MLA, Harvard, Vancouver, Chicago, etc.
Vous pouvez aussi télécharger le texte intégral de la publication scolaire au format pdf et consulter son résumé en ligne lorsque ces informations sont inclues dans les métadonnées.
Articles de revues sur le sujet "The possible concrete process of the Good"
1
Mansour, Sabria Malika. « Use of Natural Pyrophyllite as Cement Substitution in Ultra Performance Polypropylene Fiber Concrete ». International Journal of Engineering Research in Africa 56 (4 octobre 2021) : 123–35. http://dx.doi.org/10.4028/www.scientific.net/jera.56.123.
Texte intégralRésumé :
The present work investigates the use of an alumino-silicate material, the pyrophyllite as cement substitution, synthetic polypropylene fibers and binder to create an unusual ultra-performance fiber concrete; new composite, which offers a wide field of possible use in construction industry. Effect of pyrophyllite on the physical-mechanical properties is analyzed. One reference fiber concrete without pyrophyllite and three fiber concretes containing 10%, 20%, 30% of pyrophyllite were elaborated. Results show that the pyrophyllite affects the characteristics of the concrete. Indeed, in the hardened state, the density of fiber concrete decreased with pyrophyllite rate increasing. Moreover, the use of pyrophyllite slows down the hardening process of concrete, consequently producing at early ages, compressive, flexural and tensile strengths and elastic modulus of concretes approaching without exceeding those of the reference fiber concrete. The fiber concretes are also considered to be of good quality. It seems that the rate of 10 % of pyrophyllite generates the best physical-mechanical performances that approach those of the reference fiber concrete. The use of pyrophyllite as a cement substitution is beneficial since it can help to decrease the production of cement; the amount of CO2 released and protects the environment.
2
Kim, Jaehwan, Ki-Tae Park et Tae Ho Kwon. « Influencing Factors of Steel States in Concrete Based on Electrochemical Impedance Spectroscopic Measurements ». Applied Sciences 12, no 24 (8 décembre 2022) : 12611. http://dx.doi.org/10.3390/app122412611.
Texte intégralRésumé :
To cope with the premature deterioration of reinforced concrete structures caused by chloride-induced corrosion, the corrosion rate is required to be estimated and the transport parameters calculated. The electrochemical impedance spectroscopy (EIS) technique can evaluate steel corrosion behaviors at different frequencies. However, its capacity to interpret the impedance response of the system (steel embedded in concrete) is still challenged. Although concrete is a good barrier used to secure structural performance, one of the main obstacles associated with electrical measurements relates to the cases in which concrete contains unexpected or invisible variables, such as changes in pore structure induced by the continuous hydration process. In addition, the fact that steel embedded in concrete is controlled during experiments is technically challenging. Due to these limitations, various circuits have been proposed to explain the corrosion behavior of steel in concrete. EIS measurements are very sensitive to small perturbations. During the analysis process of EIS data, it is possible to introduce unexpected errors attributed to variables; thus, the estimated corrosion values based on the analysis rate may be misleading. To overcome the limitations, it is necessary to confirm the impedance responses first in controlled variable cases. In this study, EIS measurements were conducted for active/passive states of steel in concrete in various conditions to minimize variable errors which are likely induced by operators.
3
Thiele, Marc, et Stephan Pirskawetz. « Analysis of Damage Evolution in Concrete under Fatigue Loading by Acoustic Emission and Ultrasonic Testing ». Materials 15, no 1 (4 janvier 2022) : 341. http://dx.doi.org/10.3390/ma15010341.
Texte intégralRésumé :
The fatigue process of concrete under compressive cyclic loading is still not completely explored. The corresponding damage processes within the material structure are especially not entirely investigated. The application of acoustic measurement methods enables a better insight into the processes of the fatigue in concrete. Normal strength concrete was investigated under compressive cyclic loading with regard to the fatigue process by using acoustic methods in combination with other nondestructive measurement methods. Acoustic emission and ultrasonic signal measurements were applied together with measurements of strains, elastic modulus, and static strength. It was possible to determine the anisotropic character of the fatigue damage caused by uniaxial loading based on the ultrasonic measurements. Furthermore, it was observed that the fatigue damage seems to consist not exclusively of load parallel oriented crack structures. Rather, crack structures perpendicular to the load as well as local compacting are likely components of the fatigue damage. Additionally, the ultrasonic velocity appears to be a good indicator for fatigue damage beside the elastic modulus. It can be concluded that acoustic methods allow an observation of the fatigue process in concrete and a better understanding, especially in combination with further measurement methods.
4
Saltos, Armando, Juan Garcés, Linda Ordoñez, Miguel Suarez et Humberto Guerrero. « Utilización de neumáticos usados como agregado en el hormigón : caso provincia de Santa Elena, Ecuador ». Revista Científica y Tecnológica UPSE 4, no 1 (5 juin 2017) : 16–27. http://dx.doi.org/10.26423/rctu.v4i1.235.
Texte intégralRésumé :
El proyecto encontró un diseño de hormigón con partículas provenientes de neumáticos usados, que después de un proceso de selección, trituración controlada, una dosificación acorde con los parámetros de las normas internacionales de diseño de hormigón del Instituto Americano del Concreto (ACI), la Norma Ecuatoriana de Construcción (NEC), la incorporación de hasta 10 % de caucho triturado como sustituto parcial de agregados gruesos en el diseño de hormigón, se obtienen resultados favorables y de buena resistencia lo que hace que se pueda utilizar cumpliendo todas las normas ecuatorianas de la construcción. También se realizó un ensayo con un 10% de caucho triturado incorporado como sustituto parcial del agregado fino, resultando ser aún más apropiado para fines constructivos y de elaboración de hormigón. En el presente trabajo de investigación se realiza los ensayos como mezclas separadas. Se efectuaron pruebas de vigas con incorporación de agregados gruesos de hasta 15% cumpliendo las normas, pero no se ejecutó una serie completa. Palabras clave: neumático, agregado, hormigón, resistencia.Abstract The project found a concrete design with particles from used tires, which after a selection process, controlled grinding, a dosage in accordance with the parameters of the American Concrete Institute (ICA) international standards of concrete design, Standard (NEC), the incorporation of up to 10% of tired rubber as a partial substitute of coarse aggregates in the concrete design, gives favorable results and good resistance which makes it possible to use all the Ecuadorian standards of the building. A test with 10% of crushed rubber incorporated as a partial substitute of the fine aggregate was also performed, making it even more suitable for construction and concrete processing purposes. In the present research work the tests are performed as separate mixtures. Beams were tested with incorporation of coarse aggregates of up to 15% complying with the standards, but a complete series was not performed.Keywords: Tire, aggregate, concrete, resistance.
5
Shi, Yun, Yu Min Zhang, Guang Yuan Weng et Jian Bo Dai. « Dynamic Elasto-Plastic Analysis of a Hybrid Coupled Wall System ». Key Engineering Materials 818 (août 2019) : 123–27. http://dx.doi.org/10.4028/www.scientific.net/kem.818.123.
Texte intégralRésumé :
In a hybrid coupled wall (HCW), a steel coupling beam with a good shear performance can replace a concrete coupling beam. This is especially applicable for locations in which height restrictions do not permit the use of deep reinforced concrete beams or in which it is not possible to economically develop required capacity, stiffness, or deformation demands with concrete beams. In this study, a new type of connection design with a steel boundary element of hybrid coupled wall (SBE-HCW) was proposed, and a 23-story SBE-HCW structure was analyzed under both gravity and seismic load to examine the seismic performance using ABAQUS. The structural failure process, base shear force, vertex displacement, and damage distribution of core tube were investigated. The analysis results confirmed that the response of specimen exhibited good plastic deformation behavior under seismic, thereby satisfying the demands of seismic ductility design. The connection between the steel coupling beams and the shear walls in the specimen appeared to be intact. The analysis evidence indicated that the proposed connection detailing appeared to be effective.
6
Loganina, Valentina, et M. V. Frolov. « Research of Cracking Resistance of Thermal Insulation Coatings for Aerated Concrete ». Materials Science Forum 974 (décembre 2019) : 458–63. http://dx.doi.org/10.4028/www.scientific.net/msf.974.458.
Texte intégralRésumé :
The high water demand of finishing compositions obtained using expanded perlite and vermiculite sand reduces the crack resistance of the resulting thermal insulation coatings. The use of microspheres as fillers should make it possible to increase the crack resistance of the resulting coatings. The crack resistance of lime heat-insulating coatings for the finishing of aerated concrete obtained using ash microspheres of aluminosilicate and expanded vermiculite sand has been determined. It is established, that coatings obtained using aluminosilicate ash microspheres, are characterized by good crack resistance due to low shrinkage deformations, high ultimate tensile properties and uniform distribution of moisture content in the process of moistening.
7
Kurpińska, Marzena, Leszek Kułak, Tadeusz Miruszewski et Marcin Byczuk. « Application of Artificial Neural Networks to Predict Insulation Properties of Lightweight Concrete ». Applied Sciences 11, no 22 (9 novembre 2021) : 10544. http://dx.doi.org/10.3390/app112210544.
Texte intégralRésumé :
Predicting the properties of concrete before its design and application process allows for refining and optimizing its composition. However, the properties of lightweight concrete are much harder to predict than those of normal weight concrete, especially if the forecast concerns the insulating properties of concrete with artificial lightweight aggregate (LWA). It is possible to use porous aggregates and precisely modify the composition of lightweight concrete (LWC) with specific insulating properties. In this case, it is advisable to determine the parameters of the components and perform preliminary laboratory tests, and then use theoretical methods (e.g., artificial neural networks (ANNs) to predict not only the mechanical properties of lightweight concrete, but also its thermal insulation properties. Fifteen types of lightweight concrete, differing in light filler, were tested. Lightweight aggregates with different grain diameters and lightweight aggregate grains with different porosity were used. For the tests, expanded glass was applied as a filler with very good thermal insulation properties and granulated sintered fly ash, characterized by a relatively low density and high crushing strength in the group of LWAs. The aim of the work is to demonstrate the usefulness of an ANN for the determination of the relationship between the selection of the type and quantity of LWA and porosity, density, compressive strength, and thermal conductivity (TC) of the LWC.
8
Pająk, Małgorzata, Małgorzata Krystek, Mateusz Zakrzewski et Jacek Domski. « Laboratory Investigation and Numerical Modelling of Concrete Reinforced with Recycled Steel Fibers ». Materials 14, no 8 (7 avril 2021) : 1828. http://dx.doi.org/10.3390/ma14081828.
Texte intégralRésumé :
In the last decades, fiber reinforced concrete have emerged as the possible key to revolutionize civil engineering. Among different types of fibers employed in concrete technology to date, the application of recycled steel fibers produced from end-of-life car tires appears to be a viable approach towards environmentally friendly construction. In this study, we demonstrate the laboratory research and numerical analysis of concrete reinforced with waste steel fibers recovered during the recycling process of end-of-life car tires. Concrete mixes with the following fiber contents: 0.5%, 0.75%, 1.0%, 1.25%, and 1.5% per volume were prepared and then tested in three-point bending conditions. The laboratory investigation revealed highly boosted properties of concrete under flexure. We further performed the finite element method (FEM) analysis of 2D models using Atena software in order to develop a material model allowing the numerical modelling of recycled steel fibers reinforced concrete (RSFRC) behavior. The parameters of RSFRC material model have been modified using the inverse analysis until matching the experimental performance of the material. The results, being in good agreement with the laboratory investigation, have indicated a high potential of RSFRC for real scale construction applications.
9
Sadovskaya, E. A., et S. N. Leonovich. « Optimization of Composition of Nanofiber Concrete in Terms of Fracture Toughness by Matrix Modifiсation ». Science & ; Technique 21, no 6 (9 décembre 2022) : 499–503. http://dx.doi.org/10.21122/2227-1031-2022-21-6-499-503.
Texte intégralRésumé :
Concrete is a quasi-brittle building material that has low tensile strength. The process of its destruction under loading is inhomogeneous, due to the nature of the concrete structure mass, consisting of components with different physical and mechanical properties. Gradual deformation and destruction can be characterized as a process of formation and development of microcracks. The presence of different-sized components in concrete makes it possible to consider its structure as a multi-level system. In this system, each level is a matrix with its own structural inclusions, which play both a structure-forming role and the role of stress concentrators under the action of mechanical loads. The critical stress intensity factor is a good indicator of the crack resistance (fracture toughness) of a material. Nanoconcrete, from the point of view of a multilevel system, is a concrete composite with crack propagation inhibitors at the level of the cementing substance (carbon nanotubes are consi-dered as inhibitors). The presence of fiber fibers at subsequent scale levels allows us to consider concrete as a composite with multi-level dispersed reinforcement (nanofiber concrete). The paper discusses the change of concrete fracture toughness indicator (crack resistance) with dispersed reinforcement of the matrix at different structural levels. The presented for normal separation of notched cubes under eccentric compression with the determination of the stress intensity factor for concrete modified with carbon nanotubes acting as crack propagation inhibitors at the level of cementing substance (nanoconcrete), as well as for nanofiber concrete with dispersed reinforcement at the level of fine-grained concrete. Based on experimental studies by non-equilibrium methods of fracture mechanics, compositions of nanofiber-reinforced concrete of maximum crack resistance (fracture toughness) with different fiber concentrations and several types of matrices modified with nanocarbon additives are proposed in the paper.
10
Filipović, Sandra, Snezana Marinković et Dimitrije Zakić. « Environmental assessment of copper slag aggregate concrete ». Gradjevinski materijali i konstrukcije 65, no 2 (2022) : 57–83. http://dx.doi.org/10.5937/grmk2202057f.
Texte intégralRésumé :
Due to the extremely large global production and utilization of concrete, the concrete industry is considered a large consumer of energy and natural resources and one of the main sources of greenhouse emissions and waste generation. Reducing its impacts on the environment is one of the most important paths toward sustainable construction development. Replacing cement and natural aggregates with byproducts and waste from other industries is one possible way of achieving this goal. On the other hand, the disposal of industrial waste, which arises from the pyrometallurgical process of copper production, presents a significant environmental load in many developed countries. Research performed so far has shown that concrete made with aggregate obtained from cooper slag instead of natural aggregate can be produced with good physical-mechanical properties for various applications. In this work, a cradle-to-gate Life Cycle Assessment of several concrete mixtures where part of the coarse natural aggregate was replaced with copper slag aggregate was performed. The conducted case study was based on Serbian LCI data and local conditions in the vicinity of the town of Bor in Serbia. Results showed that such concrete mixtures can bring environmental benefits regarding natural aggregate preservation and waste reduction if the transport distance of copper slag aggregates is smaller than 20 km. Therefore, from the environmental protection point-of-view, local application of such concrete is recommended.
Thèses sur le sujet "The possible concrete process of the Good"
1
LUCCHINI, CLAUDIO. « Il bene come processo possibile concreto : natura umana e ontologia sociale ». Doctoral thesis, Università degli Studi di Milano-Bicocca, 2010. http://hdl.handle.net/10281/7775.
Texte intégralRésumé :
The main aim of the present work is to defend an ethical and universalistic prospective, founded on the conceptual categories of a materialistic and social ontology. The first chapter tries to underline critically a few relevant theoretical and ethical-political difficulties arising from a merely relativistic, not objectivistic approach to the problem of the validity of cognitions, institutions, manners of relations and social practices which are widespread through different peoples and different cultures. For this purpose, some recent contributions by authors such as Paul A. Boghossian, Diego Marconi, Giovanni Jervis are utilized but at the same time fitted in a wider conceptual context which is able to better understand the universalistic constitution of mankind as a possible outcome - but never absolutely guaranteed - of concrete historical processes. Moreover, the recourse to a social-ontological dimension of analysis allows us to grasp in the tendential generalization of the goods which are capitalistically produced, the real foundation of that "interiorized pluralism", in which G. Anders clearly identifies "the cultural grammar" more conformed to the capitalistic contemporaneity. This is by no means in contrast, but on the contrary more co-essential with today's phenomena of "armed exportation of human rights" and of religious fondamentalism. These phenomena are connoted by historically specific features which are not determinable outside the present reproductive dynamics of the capitalistic way of production and all the effects, tensions and conflicts they generate. The second chapter aims at defining a few concepts which are essential to outline a materialistic social ontology that considers the problems of ethics as a result of the connection of two ontological levels: the objective, material-natural determination of man, and the general space of the social reproduction as a whole in its different historical configurations. Through the recovery of the notion af human nature, considered as a complex of determinated cognitive and emotional predispositions, which are not boundless malleable (Noam Chomsky, Steven Pinker, Francesco Ferretti, Giorgio Vallortigara,etc.) and which are subtended to all cultures, the centrality of that self-reflecting "opening" to the possible, marking the morality of our species (Zygmunt Bauman, Costanzo Preve, Edoardo Boncinelli, etc.), is underlined. It is thanks to it - not disjoined from a set of other faculties - and to its acting in practical historical alternatives that men can universalistically make a problem of the ways of social expression of their fundamental hedonistic and eudaemonistical trend (although never reaching a self-consciousness which is completely transparent and immune from renewed estrangements). In the field of this theoretical layout, mixing G. Lukacs's social ontology and some of the important acquisitions of Chomskian linguistics, neuroscience and ethology, Martha Nussbaum's neoaristotelic approach concerning the problems of social justice and human dignity is emphasized; this approach is strenghtened and it acquires a concrete form by its integration with Lukacs's prospective of "everyday life democratisation". The third and final chapter - concerning the idea of the ever historically and socially specific character of the alternatives which are subject to the concrete ethical-social reflection - develops a few general considerations on the main ecological, anthropolocical, cultural, social and political problems, which are induced by the reproductive modalities of contemporary "absolute capitalism". The central pillar of the suggested analisys is the necessity of a radical breaking off from the logic of an almost senseless, deleterian capitalistic process of non-stop wealth accumulation, which is intended as a foolish growth of goods production.
Livres sur le sujet "The possible concrete process of the Good"
1
Jesuit Centre for Theological Reflection., dir. Is good governance possible in Zambia ? : Churches and CSOs and the APRM process : a working paper for citizen's involvement. Lusaka, Zambia : Jesuit Centre for Theological Reflection, 2007.
Trouver le texte intégral
2
Beuningen, Cor, et Kees Buitendijk, dir. Finance and the Common Good. NL Amsterdam : Amsterdam University Press, 2019. http://dx.doi.org/10.5117/9789463727914.
Texte intégralRésumé :
Over the past fifty years, (financial) capitalism has brought about an enormous growth in wealth. Millions around the world have been lifted out of poverty. However, the downsides of the present global economic constitution are rapidly becoming evident as well. Rising inequality, soaring debt levels, and repeated cycles of boom and bust have proven to be some of its key characteristics. After the 2008 crisis brought the financial system to the brink of collapse, new regulations, stricter supervision, higher capital requirements, and ethical codes were introduced to the sector. Today we find ourselves in the middle of another economic boom. Yet one pressing question remains: has anything changed? Have the (necessary) repairs fixed the flaws in the system? Or do we require even more fundamental reforms? This volume builds on the observation that society has co-evolved with the financial sector. We cannot simply claim that 'finance' was the sole instigator of the 2008 crisis. Society itself has become financialized; the process of replacing relations, structures of trust and reciprocity, by anonymous and systemic transactions. The volume poses vital questions with regard to this societal development. How did this happen? And more importantly: is change possible? If yes, how? This volume contains 21 essays on the themes mentioned above. Authors include Jan Peter Balkenende, Wouter Bos, Lans Bovenberg, Govert Buijs, and Herman Van Rompuy. A recommendation by Dutch Minister of Finance Wopke Hoekstra is also included.
3
Šerý, Ondřej, Pavel Doboš, Ladislava Suchá, Jan Martinek, Stanislav Škop, Daniel Kaplan, Simona Surmařová et al. Geografie bariér. Sous la direction de Robert Osman. Brno : Masaryk University Press, 2021. http://dx.doi.org/10.5817/cz.muni.m210-9910-2021.
Texte intégralRésumé :
The book Geography of Barriers: Examples of Good Barrier-free Practice offers a collection of texts that are interested in making space, services, and information accessible. Thus, the collection is primarily about barriers, their nature, localization, and possible effects. Under barriers, most people imagine material barriers for wheelchair users in the form of steps or sidewalk curbs. Only a few would think that barriers can be represented by loosely placed rugs, unfit lighting, large glass surface, a doorbell without visual output, unwanted attention, frequent asking and offering help, lack of language knowledge, pity, etc. Thus, the book broadens awareness of what can be considered a barrier. The texts are divided into three parts – theoretical, methodic, and empirical – and their arrangement follows the logic of thematic focusing from the most general to the most concrete types of barriers. While the theoretical part places the policies of accessibility into the wider context of scientific disciplines and their development – such as disability studies, disability geography or service design, the methodic part discusses the introduction of accessibility policies in the city of Brno, describing how it tried to make its space, services, and information more accessible. Finally, the empirical part offers 18 examples of relatively good barrier-free implementations that have been recently realized in Brno. This division reflects an effort to target several groups of readers. The first part thus addresses mainly students interested in accessibility issues, the second, methodic part is intended for politicians and municipalities searching for inspiration to implement their own accessibility measures and policies. The last part stating concrete examples of good barrier-free implementations is aimed at general public, at people who like to think about a whole range of topics related to accessibility of space, services, and information.
4
Hollingsworth, Leslie, Larry M. Gant et Patricia L. Miller. Community Change Process. Oxford University Press, 2017. http://dx.doi.org/10.1093/acprof:oso/9780190463311.003.0006.
Texte intégralRésumé :
Abstract: This chapter summarizes and discusses the planning phase of the community change process that comprised the three Good Neighborhoods phases (planning, readiness, and transformation). The purpose of the planning phase was to engage neighborhood residents and stakeholders in a community-wide planning process that would result in a community goal and action plan that was community-owned and -driven. In this chapter, the authors describe and discuss the process by which engagement of the community, needs assessment, and planning took place. The authors use the Osborn neighborhood as the case, recognizing that, as much as possible, the same process was followed in each of the six neighborhoods.
5
V J K, Kishor Sonti, Vijayan D.S et Lakshmi Prasanna V. Innovative Teaching and Learning Process during COVID 19. Sous la direction de Daniel C et Bindu Swetha Pasuluri. IOR PRESS, 2020. http://dx.doi.org/10.34256/iorip202.
Texte intégralRésumé :
The book on “Innovative Teaching and Learning Process during COVID 19” is a very good effort in bringing novel ideas at the time of pandemic. The engagement with academic fraternity leading to this wonderful outcome is laudable. As the editors of this book, we are fortunate to go through every article and found few interesting aspects in teaching and learning process. Innovation has been the most buzzed word in the world today. In fact, academia across the globe are potentially involved in INNOVATION at every possible level. We wish this race with this pace towards innovation in teaching and learning mechanism drives us to “INNOVATION 5.0” in near future. This book will be instrumental in polarizing the thoughts of reader towards this process of innovation, particularly, in delivering lectures using online platforms and e-resources. Congratulations the authors in this book touched upon diverse topics related to the paradigm shift in teaching and learning process. Various tools, innovative practices were presented vividly in the articles of this book. Congratulations and wishes to authors and publishers for bringing out this productive outcome in the most critical transition time of educational reforms.
6
Pasuluri, Bindu Swetha, Daniel C, Vijayan D.S, Arvindan S et Pradeep Kumar S, dir. Innovative Teaching and Learning Process during COVID 19. 2e éd. IOR PRESS, 2020. http://dx.doi.org/10.34256/iorip203.
Texte intégralRésumé :
The book on “Innovative Teaching and Learning Process during COVID 19” is a very good effort in bringing novel ideas at the time of pandemic. The engagement with academic fraternity leading to this wonderful outcome is laudable. As the editors of this book, we are fortunate to go through every article and found few interesting aspects in teaching and learning process. Innovation has been the most buzzed word in the world today. In fact, academia across the globe are potentially involved in INNOVATION at every possible level. We wish this race with this pace towards innovation in teaching and learning mechanism drives us to “INNOVATION 5.0” in near future. This book will be instrumental in polarizing the thoughts of reader towards this process of innovation, particularly, in delivering lectures using online platforms and e-resources. The authors in this book touched upon diverse topics related to the paradigm shift in teaching and learning process. Various tools, innovative practices were presented vividly in the articles of this book. Congratulations and wishes to authors and publishers for bringing out this productive outcome in the most critical transition time of educational reforms.
7
Passerini, Luisa. Europe and its Others : Is there a European Identity ? Sous la direction de Dan Stone. Oxford University Press, 2012. http://dx.doi.org/10.1093/oxfordhb/9780199560981.013.0006.
Texte intégralRésumé :
For centuries, forms of European identity were built up through contrasts and oppositions, creating various forms of orientalism and occidentalism. It is useful to keep three levels of discussion distinct: that of the concrete procedure of the unification of Europe, that of the different ideas and ideologies regarding a united Europe, and that of identity. Multiculturalism has been suggested as the basis for an identity that could be recognised also by non-territorialised groups, such as foreigners or immigrants, and as the only possible basis for shaping a European political culture which could foster a European identity. In reference to Europeanness, the number and extension of currently possible cultural identities has increased. The process of globalisation, which has relativised the nation state, has led to the interpenetration of the European Union and other regions of the world. Thus it has suggested new conceptions of regional identities, in a modified vision of the relationship between self and other.
8
Leonie Field, Sandra. Potentia. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780197528242.001.0001.
Texte intégralRésumé :
This book offers a detailed study of the political philosophies of Thomas Hobbes and Benedict de Spinoza, focussing on their concept of power as potentia, concrete power, rather than power as potestas, authorized power. The focus on power as potentia generates a new conception of popular power. Radical democrats—whether drawing on Hobbes’s ‘sleeping sovereign’ or on Spinoza’s ‘multitude’—understand popular power as something that transcends ordinary institutional politics, as, for instance, popular plebiscites or mass movements. However, the book argues that these understandings reflect a residual scholasticism that Hobbes and Spinoza ultimately repudiate. Instead, on the book’s revisionist conception, a political phenomenon should be said to express popular power when it is both popular (it eliminates oligarchy and encompasses the whole polity) and also powerful (it robustly determines political and social outcomes). Two possible institutional forms that this popular power might take are distinguished: Hobbesian repressive egalitarianism and Spinozist civic strengthening. But despite divergent institutional proposals, the book argues that both Hobbes and Spinoza share the conviction that there is nothing spontaneously egalitarian or good about human collective existence. From this point of view, the book accuses radical democrats of pernicious romanticism; the slow, meticulous work of organizational design and maintenance is the true centre of popular power.
9
Brives, Charlotte, Matthäus Rest et Salla Sariola, dir. With Microbes. Mattering Press, 2021. http://dx.doi.org/10.28938/9781912729180.
Texte intégralRésumé :
Without microbes, no other forms of life would be possible. But what does it mean to be with microbes? In this book, 24 contributors attune to microbes and describe their multiple relationships with humans and others. Ethnographic explorations with fermented foods, waste, faecal matter, immunity, antimicrobial resistance, phages, as well as indigenous and scientific understandings of microbes challenge ideas of them being simple entities: not just pathogenic foes, old friends or good fermentation minions, but much more. Following various entanglements, the book tells how these relations transform both humans and microbes in the process.
10
Hertogh, Cees, et Jenny van der Steen. Ethics of living and dying with dementia. Oxford University Press, 2013. http://dx.doi.org/10.1093/med/9780199644957.003.0057.
Texte intégralRésumé :
The gradual progression of dementia means there has to be a constant search for a reasonable balance between supporting autonomy and ensuring proper representation. ∙ Good end of life care for people with dementia depends on adequate advance care planning, startling early in the disease process ∙ Where possible, it involves striving for joint decision-making with the patient and next-of-kin about (future) medical treatment and (future) care. ∙ Written advance directives may support representatives of incompetent patients in their role of surrogate decision maker, but the contents of the directive require interpretation in the context of advance care planning. ∙ The concept of “palliative care” offers a (policy) framework for advance care planning as well as moral guideline for dealing with written advance directives of patients with dementia.
Chapitres de livres sur le sujet "The possible concrete process of the Good"
1
Doboš, Pavel, Robert Osman, Ondřej Šerý, Daniel Kaplan, Simona Surmařová et Stanislav Škop. « Brněnský archiv příkladů dobré praxe : proč ne Metodika ? » Dans Geografie bariér, 313–406. Brno : Masaryk University Press, 2021. http://dx.doi.org/10.5817/cz.muni.m210-9910-2021-9.
Texte intégralRésumé :
The ninth chapter presents Examples of good practice for the creation of accessible urban space, which have been practiced by multiple actors in Brno city under specific circumstances and which can serve as inspiration and motivation for other municipalities in their barrier-free policies and practice. While being the source for inspiration can be their principal goal, another goal is to archive the good practice. The authors start the chapter defining themselves against methods guidelines for barrier-free space; methods are introduced as a certain conceptual tool for strict, systematic and universal creation of barrier-free/accessible space, which can be too binding and less open to eventual changes. On the other hand, Examples of good practice represent a different approach, open to eventual developments, unexpected phenomena and trying to inspire for creation of accessible space everywhere and every time, in pragmatic, unprecedented and diverse ways. As has been indicated above, Methods guides for barrier-free space can be bound by three universalities, which usually prevent experimenting and creativity. Examples of good practice aim to inspire and incent creativity, and thus represent a universal “will” to be creative, unhinged and active. Each example consists of several parts: Illustrative story presenting the barriers and related pitfalls by describing the original situation and the need for intervention; Analysis concentrating on the pitfalls; Suggested solution with a discussion; a Concrete realization in Brno city, showing the concrete process of dealing with the so-far describe accessibility; then Solution limits are presented; Conclusion, which offers insight for future application, and Time axis outlining the whole process from a chronological perspective. Each Example is also documented by photographs showing the original state full of barriers and pitfalls, and the state when a chosen solution has been realized.
2
Samuelsson, Anders, Falko Schröter, Gerhard Sedlacek, Christian Müller, Alain Nussbaumer, Bernt Johansson, Torsten Höglund, Peter Collin et Alberto Miazzon. « High-Performance Steels in Europe ». Dans Use and Application of High-Performance Steels for Steel Structures, 99–146. Zurich, Switzerland : International Association for Bridge and Structural Engineering (IABSE), 2005. http://dx.doi.org/10.2749/sed008.099.
Texte intégralRésumé :
<p>Since the first application of steel in steel structures in the 19th century the development of steel construction has been closely linked to the development in material properties and production methods. Significant achievements concerning strength, economy, design versatility, fabrication and erection techniques and service performance would not have been possible without the substantial improvements of steel. Especially with the application of "new" production processes for carbon steels such as the thermo-mechanical rolling and the quenching and tempering process, steel with a high construction strength but guaranteeing also good fabrication properties such as weldability was introduced into the construction market.</p>
3
Cognetti, Francesca. « Beyond a Buzzword : Situated Participation Through Socially Oriented Urban Living Labs ». Dans The Urban Book Series, 19–37. Cham : Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-19748-2_2.
Texte intégralRésumé :
AbstractIn the broader framework of Living Labs and participatory planning, the essay proposes socially-oriented Urban Living Labs (ULLs) as a possible way of understanding and experimenting with participation in marginalized contexts. It does so by applying a focus on individual/collective capacities and enabling processes to support them. Drawing on the literature and the observation and implementation of concrete cases, the essay proposes a reflection on ULLs as situated environments in which “everyone’s” capacities are formed and tested, thus challenging the functioning of local democracy. This implies a focus as much on residents and local agents as on institutions. The essay proposes a shift from Living Labs to socially oriented Urban Living Labs, in order to foster the social dimension of planning, questioning the mechanisms of involvement and support of the most fragile profiles, often excluded from the political process. The perspective is the implementation of an enabling and mutual learning process through devices to reinforce organizations and people’s ability to reflect on, aspire to, and take action for the transformation of their life context, becoming real agents of change.
4
Hiebert, James, Jinfa Cai, Stephen Hwang, Anne K. Morris et Charles Hohensee. « How Do You Formulate (Important) Hypotheses ? » Dans Research in Mathematics Education, 17–49. Cham : Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-19078-0_2.
Texte intégralRésumé :
AbstractBuilding on the ideas in Chap. 1, we describe formulating, testing, and revising hypotheses as a continuing cycle of clarifying what you want to study, making predictions about what you might find together with developing your reasons for these predictions, imagining tests of these predictions, revising your predictions and rationales, and so on. Many resources feed this process, including reading what others have found about similar phenomena, talking with colleagues, conducting pilot studies, and writing drafts as you revise your thinking. Although you might think you cannot predict what you will find, it is always possible—with enough reading and conversations and pilot studies—to make some good guesses. And, once you guess what you will find and write out the reasons for these guesses you are on your way to scientific inquiry. As you refine your hypotheses, you can assess their research importance by asking how connected they are to problems your research community really wants to solve.
5
Chiaromonte, William, et Veronica Federico. « The Labour Market Needs Them, But We Don’t Want Them to Stay for Good : The Conundrum of Migrants, Refugees and Asylum Seekers’ Integration in Italy ». Dans IMISCOE Research Series, 193–212. Cham : Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-67284-3_10.
Texte intégralRésumé :
AbstractItaly is a very complex case of migration management and of foreign workers’ integration in the labour market. Both have developed in the grip of structural national limits, due to the economic and social structure of the country, but also to its political culture and legal framework. Work is certainly among the most effective instruments for ensuring the effective integration of foreigners into the social fabric of the host country. However, the chapter discusses the many obstacles that hinder the full integration of foreigners into the Italian labour market, especially when they do not have a residence permit for work reasons but are beneficiaries of international and humanitarian protection. Since access to work for beneficiaries of international and humanitarian protection is still very complicated, there is a strong risk that the progressive reduction in the number of permits granted for work reasons and the simultaneous increase in the number of those granted for protection will slow down the process of integration through work. Furthermore, particularly long and complicated administrative recruitment procedures would require a comprehensive review of the legislation to become instruments of social and economic integration and not of marginalization. Against this backdrop, the chapter highlights how the law may abdicate from its empowering purpose to become a concrete barrier for the full enjoyment of newcomers fundamental rights.
6
Bishop, John, et Ken Perszyk. « God, the Divine, and the Divine Attributes ». Dans God, Purpose, and Reality, 87—C4.P89. Oxford University PressOxford, 2023. http://dx.doi.org/10.1093/oso/9780192864116.003.0005.
Texte intégralRésumé :
Abstract This chapter considers the place of God in euteleological theism. It argues that God is not to be identified with any entity in euteleology’s basic ontology—not with the Universe as a whole, or with reality’s principle of unity (its eutelicity), or with the supreme good which is reality’s telos, or with concrete realizations of reality’s telos. Yet euteleology accepts that truths may be conveyed by claims about God’s acting in creating and within creation. It provides an account of creation ex nihilo and of God’s distinctness from creation, as well as of the divine attributes. It generally leaves in place traditional scriptural, liturgical, and creedal personal language about God. Personal language about God is understood by a radical analogous extension or projection from our understanding of personal language as applied to human agents, where the very thought of God as an entity is itself possible only by a process of extending by analogy our ‘thing-property’ schema to apply to the unique case of ultimate reality itself. In ways we cannot fully comprehend, the truth-makers for these analogously constructed claims will be some aspect of ultimate reality itself being the way it is when euteleological theism is true. Despite its account of God-as-a-thing as a cognitive construction, it is argued that a euteleological theism is robustly realist. The chapter concludes by discussing the sense(s) in which euteleology may be regarded as a panentheism.
7
Canter, David. « Understanding, Assessing, and Acting in Places : Is an Integrative Framework Possible ? » Dans Environment, Cognition, and Action. Oxford University Press, 1992. http://dx.doi.org/10.1093/oso/9780195062205.003.0015.
Texte intégralRésumé :
The field of environmental psychology appears to maintain three rather different habitats, that have not so far been formed into a coherent ecology. One is the area from which this book drew its central inspiration. That is the study of environmental cognition. The processes by which people perceive and know their physical surroundings. As made clear and presented in some detail in Chapter 1, this research has its roots in two interrelated traditions: the “cognitive mapping” tradition that is usually traced to the work of Lynch (1960), and the “environmental meaning” tradition that grew out of the studies of Osgood, Suci, and Tannenbaum (1956), especially as they were developed by Berlyne (1971). In many ways the great significance of Kaplan and Kaplan's (1978) contribution, developed in Chapter 9, is the way Kaplan has integrated these two strands and thereby enriched our perspectives on environmental knowing. At the heart of this domain is the cognitive psychology belief that knowledge of the world is integrally linked to the perception of it. Neisser (1976) has done most to elaborate this view and argue for epistemic perception as the starting point for understanding human transactions with the world. In providing this emphasis the laboratory-based, experimental tradition out of which it is derived is never completely forgotten. The transactions are with simple, concrete entities that exist outside the laboratory but could be readily simulated within it. This inheritance from an earlier generation of perceptual theorists is an important one, to which I shall return. I see it as the major reason why prospects for theoretical integration, even though they have been opened up by fruitful developments in cognitive theory, still escape us. The second distinct habitat in environmental psychology has far weaker theoretical roots and a less well-established vocabulary. It used to be called “building appraisal” (Canter, 1966), it then became the more alliterative “environmental evaluation” (Zube, 1980), and now is drifting into “assessment.” The origins of this domain are in the pragmatic requests of architects, planners, and environmental policy makers for information on how good their decisions have been.
8
Wahlberg, Ayo. « Introduction ». Dans Good Quality. University of California Press, 2018. http://dx.doi.org/10.1525/california/9780520297777.003.0001.
Texte intégralRésumé :
From crude and uneasy beginnings, sperm banking has become a routine part of China’s pervasive and restrictive reproductive complex within the space of thirty years, albeit hampered by what some commentators have described as a “sperm crisis.” In the introduction, routinization is defined as a socio-historical process through which habituated regimes of daily micro-practices coalesce, thereby shaping a medical technology and its uses. Assemblage ethnography is proposed as a necessary methodology to account for how routinized sperm banking has become possible in China and what style of sperm banking has emerged as a result.
9
Björk, Tomas. « Good Deal Bounds ». Dans Arbitrage Theory in Continuous Time, 441–48. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198851615.003.0034.
Texte intégralRésumé :
In this chapter we study an incomplete market, but we do not look for a unique martingale measure. Instead we try to find “reasonable” bounds on arbitrage free prices. The terms “reasonable” is formalized in terms of a price rule with bounded Sharpe ratio–so-called good deal bounds. We study a factor model and show that the good deal bounds can be obtained by solving a control problem where the likelihood process acts as a state variable, and the Girsanov kernel is the control variable. The theory is then applied to concrete examples.
10
Val del Río, Ángeles, Alba Pedrouso Fuentes, Elisa Amanda Giustinianovich, José Luis Campos Gomez et Anuska Mosquera-Corral. « Anammox Process ». Dans Technologies for the Treatment and Recovery of Nutrients from Industrial Wastewater, 264–89. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-1037-6.ch010.
Texte intégralRésumé :
Application of anammox based processes is nowadays an efficient way to remove nitrogen from wastewaters, being good alternative to the conventional nitrification-denitrification process. This chapter reviews the possible configurations to apply the anammox process, being special attention to the previous partial nitritation, necessary to obtain the adequate substrates for anammox bacteria. Furthermore a description of the main technologies developed and patented by different companies was performed, with focus on the advantages and bottlenecks of them. These technologies are classified in the chapter based on the type of biomass: suspended, granular and biofilm. Also a review is presented for the industrial applications (food industry, agricultural wastes, landfill leachates, electronic industry, etc.), taking into account full scale experiences and laboratory results, as well as microbiology aspects respect to the anammox bacteria genera involved. Finally the possibility to couple nitrogen removal, by anammox, with phosphorus recovery, by struvite precipitation, is also evaluated.
Actes de conférences sur le sujet "The possible concrete process of the Good"
1
Boden, Sven, et Eric Cantrel. « Pre-Decommissioning Radiological Characterization of Concrete ». Dans The 11th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2007. http://dx.doi.org/10.1115/icem2007-7044.
Texte intégralRésumé :
The decommissioning of the BR3 (Belgian Reactor 3) approaches its final phase, in which the building structures are being decontaminated and either denuclearized for possible reuse or demolished. Apart from the presence of naturally occurring radionuclides in building materials, other radionuclides might be present due to contamination or activation. The overall process of the BR3 building structure D&D (Decontamination & Decommissioning) consists of the following steps: • make a complete inventory and preliminary categorize all elements based on historical data; • characterize and determine the contamination or activation depth; • determine the decontamination method; • perform the decontamination and clean up; • a possible intermediate characterization followed by an additional decontamination step; and • characterize for clearance. A good knowledge of the contamination and activation depth (second step) is fundamental in view of cost minimization. Currently, the method commonly used for the determination of the depth is based on core drilling and destructive analysis. Recently, we have introduced a complementary non destructive assay based on in-situ gamma spectroscopy. Field tests at BR3, both for contamination and activation, showed promising results.
2
Zhang, P., T. J. Zhao, L. S. Zhang, F. H. Wittmann, E. Lehmann et P. Vontobel. « Application of Neutron Radiography to Observe Water Absorbtion of Concrete ». Dans 18th International Conference on Nuclear Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/icone18-29080.
Texte intégralRésumé :
It has been experienced that service life of reinforced concrete structures is often limited due to lack of durability of cement-based materials. One major reason for this durability problem is the penetration of water and compounds dissolved in water into concrete. Therefore, there is an urgent need to study water penetration into concrete in order to better understand deterioration mechanisms. Neutron radiography provides an advanced non-destructive technique with high spatial resolution. In this contribution, neutron radiography was successfully utilized to study the process of water absorption of two types of concrete with different water-cement ratios namely 0.4 and 0.6. It is shown that it is possible to visualize migration of water into concrete and to quantify the time-dependent moisture distribution with accurately and with high spatial resolution by means of neutron radiography. In concrete with high water-cement ratio, water penetrates much quicker than in concrete with lower water cement ratio. Water penetration depth obtained from neutron radiography is in good agreement with corresponding values obtained from capillary suction tests. Experimental results obtained by means of neutron radiography on water penetration into concrete will be presented and discussed in this contribution. Results will provide us with a solid basis for a better understanding of deteriorating processes in concrete and other cement-based materials. These results may be considered to be a first step to improve durability of concrete.
3
Olipitz, Michael. « A universal UHPC shell element for consideration of future building with precast elements ». Dans IABSE Congress, New York, New York 2019 : The Evolving Metropolis. Zurich, Switzerland : International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/newyork.2019.2280.
Texte intégralRésumé :
<p>This article describes a technology of UHPC-precast elements (Ultra High Performance Concrete) from the idea to the concrete implementation and shows different possible applications. The development steps of the precast elements relate on the one hand the manufacturing up to the series product and on the other hand the joining technique of the elements. UHPC-prefabricated parts are joined using steel components. The bolted and/or tightened connections of the elements implement a later disassembly and thus a very sustainable use of UHPC- components in the sense of urban mining. The applications concern some examples of architectural objects where the first experiences with the production of UHPC-precast elements were made and which are shown in this article as an example. In the future UHPC-precast elements will play an important role in the field of civil engineering. A concrete prototype will be described and further developments will be shown. In civil engineering, in addition to the aspect of durability, the aesthetics, that results from the construction, play an essential role. It is therefore essential for the planning process of civil engineering structures to consider nature, ethics and aesthetics as equal value properties. The applications of UHPC- precast elements for building constructions are currently limited due to lower durability requirements. However ways are shown that allow meaningful applications. An economic application is given only when considering the overall life cycle. The aesthetics resulting from material-appropriate planning plays an essential role. In the future the consideration of good design will lead to creative construction products such as a universal shell element, which meets all the requirements of sustainable constructions.</p>
4
Allameh, Seyed. « On the Development of a 3D Printer for Combinatorial Structural Composite Research ». Dans ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-50962.
Texte intégralRésumé :
Bioinspired materials have enabled the fabrication of tough lightweight structures for load- and impact-bearing applications of which an example is fiber-reinforced plastics use in aerospace. If applied to the field of construction, biomimicked composites can save lives, otherwise lost to earthquakes and other disasters that cause collapse of buildings. The main culprit is the low resistance of structures exposed to dynamic shear stresses, typical of earthquakes. Recent work on the application of biomimicry to structural composites has clearly shown the advantage of these materials in resisting dynamic shear. Adding natural or synthetic reinforcement fibers may alleviate the need for conventional steel rebars and make it possible to print buildings by conventional 3D printing technology. The main hurdles are to find the right type of composite that is compatible with 3D printing and the right process for deposition of such material. In the past, combination of carbon fiber, glue and concrete has been demonstrated to enhance the toughness of resulting structural composites. Inspired by the microstructure of oyster and mother of pearl, layering of these materials mitigates the localization of deformation by distributing the imposed displacement over a large area. The intricate structure of these layers, and the minute details of the interfaces are important for affecting good dynamic shear resistance. In nacre, a partial slip of sandwiched layers occurs before it stops and deformation is transferred to the adjacent area. This energy-absorption capability underlies the high-toughness behavior of nacre and similar structures. By mimicking nacre, bone and tooth, it is possible to benefit from their good properties, however, it is important to determine the type of material, layering scheme, geometry, and other factors that affect mechanical properties. A recently-developed medium-sized 3D printer was developed to deposit structural materials. These include cement, plaster, polymer and clay. Combinatorial structural composite research (CSCR) comprising the simultaneous fabrication and characterization of multiple specimens with different microstructures allows fair comparison of mechanical properties of various structural composites. Novel application of deposition techniques to the extrusion of plaster, cement and clay paves the way to layer these materials along with glue and fibers in desired schemes. Use of ANOVA tables in the selection of various types of ceramics, polymers and reinforcement materials for the fabrication of different composites will be discussed. In addition to selection of the type of the materials, deposition schemes such as those of solid and hollow structures, different layer thickness applications, and the effect of timing will be elucidated. Microscopy conducted on the fractured surfaces enables the investigation of the mechanisms of fracture and failure for these CSCR composites. The details of experiments conducted, microscopy performed and the results of mechanical tests will be presented.
5
Li, Hong-Nan, et Gang Li. « Earthquake-Resistant Design of RC Frame With “Dual Functions” Metallic Dampers ». Dans ASME 2007 Pressure Vessels and Piping Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/pvp2007-26450.
Texte intégralRésumé :
Earthquake can make structures damaged and crumble. The traditional approach to seismic design has been based upon providing a combination of strength and ductility to resist the imposed loads. Thus, the level of the structure security cannot be achieved, because the disadvantage of the designing method is lack of adjusting capability subjected to an uncertain earthquake. The presence of some damping (energy dissipation) in buildings has been recognized and studied by professional researchers. Passive energy-dissipated system, as a category of vibration control methods, lead the inputting energy from earthquake to special element, thereby reducing energy-dissipating demand on primary structural members and minimizing possible structural damage. One of the most effective mechanisms available for the dissipation of input energy of a structure during an earthquake is through the inelastic deformation of metallic substances. Added damping and stiffness (ADAS) elements are designed through the flexural yielding deformation of steel plates. Metallic material is a popular (and inexpensive) choice for an energy dissipation device because of its relatively high elastic stiffness, good ductility and its high potential for dissipating energy in the post-yield region. The idea of utilizing separate metallic dampers in a structure to absorb a large portion of the seismic energy began with the conceptual and experimental work by Kelly et al.. Numerous different types of energy-absorbed devices have been proposed, for example, X-shaped and triangular plate dampers by Whittaker et al. The normal metallic damper is to use the out-of-plane bending deformation of metallic plate to provide damping for structure to reduce its dynamic response to environmental loadings. Since the bending curvature produced by a force, which is perpendicular to the metallic plates of damper applied at the ends is uniform over the full height of the plate, the plate can inelastically deform well without deflection concentration. However, the inelastic deformation of the damper may occur even subjected to a relatively small disturbance (wind or earthquake) since the out-of-plane stiffness of metallic plates of damper is very small. As a result, it has to be replaced after the disturbance. How to improve the stiffness of metallic dampers is an important issue. In this paper, a new idea of designing the metallic damper is presented, i.e. the metallic damper with “dual functions”, and the quasi-static tests with the dampers are carried out. Design and fitting process of the reinforced concrete frame with dual functional metallic damper are introduced. A three-dimensional frame structure model is made with ADPL language in ANSYS program. Seismic responses of the structure with and without metallic damper are calculated and compared. The results show that the metallic dampers with the “dual functions” presented here not only provide certain stiffness in the normal application, but also are of good ability of the seismic energy dissipation.
6
Zhang, Chen, et Xun Yu. « Piezoelectric-Based Viscosity Probe for Early-Age Concrete Curing Process Monitoring ». Dans ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-68055.
Texte intégralRésumé :
This paper presents an active sensing system for concrete viscosity measurement during its very early age. The proposed system is based on the analysis of energy transmission at the boundary of interface between probe (stainless steel bar in the system) and concrete mixture. Different from traditional systems, which employed a couple of actuator and sensor attaching to the surface of the concrete, the new system employs only one transducer as both actuator and sensor. Therefore, the system could be integrated in a small size and more portable. Since only one transducer is employed, the viscosity change of early age concrete is extracted by analyzing the energy variation of the reflected ultrasonic waves instead of applying traditional digital signal processing (DSP) technique (magnitude, phase, velocity). Laboratory experiments are carried out to evaluate the effect of this approach. Results show good match with theoretical analysis. This system can be used in large-scale field investigation of concrete viscosity monitoring for bridges, highways and airport pavements.
7
Abazi, Sead, et Bulent Suloodža. « QUALITY CONTROL OF SPRACONCRETE AND POSSIBLE PROBLEMS DURING SHOTCRETING ». Dans GEO-EXPO 2020. DRUŠTVO ZA GEOTEHNIKU U BOSNI I HERCEGOVINI, 2020. http://dx.doi.org/10.35123/geo-expo_2020_5.
Texte intégralRésumé :
Shotcrete is a modern technology for protecting the excavations in solid rock masses and it is a process where the concrete mass is applied to the surface by means of high pressure. The installation of sprayed concrete requires special equipment, also a lot of attention and well-trained workers. For that purpose, quality controls are performed during each installation of the shotcrete. In order to ensure that the requirements are met, there is: small, normal and more extensive quality control. The frequency of the tests is determined depending on the concrete, the difficulties of installation, the type of the object, etc. Quality control is done before and after the installation of sprayed concrete. Thus, the test for the temperature of the concrete is done in every 100 m³, the thickness of the torque and the compressive strength are measured every 250 m³ of built-in sprayed concrete. However, the conditions prescribed by the project are not always met. Therefore, problems are possible when using this modern technology for protection of excavations. Such problems can occur in various stages, such as: during the preparation, during the installation and after the installation, as well as possible problems caused by the equipment and workers. To eliminate them or minimize them, attention should be paid to several key things, including the period of incorporation of the wet mixture. If the shotcreting is not completed within 2 hours, the hydration process begins, which complicates the work.
8
Carro-López, Diego, Ignasi Fernandez et Natalie Williams Portal. « An old bridge transformed into a new one : possible, recommendable ? » Dans IABSE Congress, New York, New York 2019 : The Evolving Metropolis. Zurich, Switzerland : International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/newyork.2019.0950.
Texte intégralRésumé :
<p>There is an extensive network of reinforced concrete bridges that give service to roads, highways and railways. These structures where constructed with quality standards of the past, and they suffer of severe problems. Now we consider the idea of substituting them with structural elements with much longer service life. However, there is an important question to be addressed in this area: what to do with the existing infrastructure that would be demolished. Even more if we consider environmental issues.</p><p>One good example of this recurrent problem could be found in the case of the Gullspång bridge (Sweden). It was constructed in 1935 and it was severely damaged with corrosion. The administration decided in the 2016 that no further repair would be done and that the bridge would be demolished and a new erected in substitution. A fraction of the concrete from the old bridge was crushed and processed to produce new aggregate. With this aggregate, using the coarse fraction, it was analyzed the structural effect of replacing natural aggregates with these recycled aggregates. The performance of the new structural elements was positive, and it seems that a high percentage of the natural aggregates could be replaced with recycled ones.</p>
9
Sims, Jeremy. « Process Accuracy vs Process Uncertainty (Risk Mitigation : Calibration and the Customer’s Process) ». Dans NCSL International Workshop & Symposium. NCSL International, 2013. http://dx.doi.org/10.51843/wsproceedings.2013.45.
Texte intégralRésumé :
The requirements for the process accuracy may be dictated by the requirements of the expected output of the process or product. The ratio between the process accuracy (i.e., the acceptance limits of the manufacturing process, or it could be the product itself) and the instrument accuracy (i.e., the equipment used to measure the process) is the Process Accuracy Ratio (PAR). Just as a calibration standard’s accuracy is an incomplete representation of a calibration process, the sole use of accuracies of the manufacturing measurement process may omit large errors that could change the outcome of the measurement or test. The measuring process can be impacted by many factors. We will define the inclusion of possible sources of error as uncertainty components of the process and thus more exactly define the ratio as the Process Uncertainty Ratio (PUR).Calibration laboratories have the same need to determine the uncertainties of their measurement processes. An important part of metrological traceability is uncertainty and a good measurement assurance program. We have to build an uncertainty budget for the measurement process whether it relates to calibration of instruments or the use of instruments to measure a manufacturing process or the end product. Metrology laboratories that are accredited to ISO17025 are required to calculate the uncertainties of their calibration processes. In a similar manner, you can demonstrate that all the possible components of error are accounted for when determining the process uncertainty. Questions that should be asked: What possible components of error will affect my output or product (time, atmospheric conditions, uncertainty of the calibration performed on the instrument I am using, proper use of the instrument upon which pass/fail decisions are being made, et.al.)? What is the potential risk involved if the process isn’t evaluated for potential components of error? We may find that the accuracy of the instrument used to measure the process may not be the biggest contributor of error in the process. Once we determine the potential errors, we can begin to eliminate as much of that error as possible through statistical process control (SPC) or other means. As the customer of calibration services, it is your responsibility to ensure the calibration received supports your process requirements and that you take into account all sources of error when using instruments to make decisions about your manufacturing processes or concerning your product’s quality.
10
Xu, Zhichun, Yapei Zhang, G. H. Su, Wenxi Tian et Suizheng Qiu. « Numerical Simulation of Concrete Ablation and Corium Cooling for Molten Corium-Concrete Interaction (MCCI) ». Dans 2020 International Conference on Nuclear Engineering collocated with the ASME 2020 Power Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/icone2020-16388.
Texte intégralRésumé :
Abstract In a postulated severe accident situation in Light Water Reactors (LWRs), if the core fuel cannot be effectively cooled, the reactor core material will be heated and form a molten corium in the lower head. When the lower plenum of the reactor vessel fails, the molten corium may flow into the cavity under the reactor vessel and react with the concrete. This process, known as Molten Corium Concrete Interaction (MCCI), is characterized by concrete ablation and oxidation of metal in the corium, both of which produce a large amount of combustible and non-condensable gases, threatening the integrity of the containment. Thus in-depth study of the characteristics of concrete ablation and corium cooling have great significance. In the present study, an MCCI analysis code, MOQUICO (molten corium concrete interaction and corium cooling code, QUI means quintic) has been developed. The MACE M3b and OECD/MCCI CCI-3 tests were analyzed to validate the developed code. The melt temperature, axial and radial ablation depths, upward heat flux were calculated and were in good agreement with the experimental measurements, which proved that the code is capable of simulating MCCI and related phenomena of LWRs. Sensitivity analyses on the factors of decay heat, concrete type and water injection moment were performed and analyzed.
Rapports d'organisations sur le sujet "The possible concrete process of the Good"
1
Ilgenfritz, Pedro. Guide Me Without Touching My Hand : Reflections on the Dramaturgical Development of the Devised-theatre Show One by One. Unitec ePress, décembre 2016. http://dx.doi.org/10.34074/ocds.038.
Texte intégralRésumé :
This essay is a reflection on some aspects of dramaturgy observed during the creation and development of One by One, a silent tragicomedy designed by the Auckland company, LAB Theatre, in 2011 and restaged in 2013. The emphasis of the essay is on pedagogical aspects at the core of the company’s work, as they inform the creative process and lead to the blending of the actor’s function into that of the dramaturg. The following discussion makes apparent the fact that this process of hybridisation, made possible by implementing features of devised theatre, emancipates the actor and brings improvisation to a better use. The play was based on the notion that theatrical action must be ‘suggestive’ rather than ‘descriptive.’ This idea originated in the works of Konstantin Stanislavski (1988) and Jacques Copeau (2000) and was developed by more recent theorists of dramaturgy into a practical framework for theatrical performance in general. The success of One by One depended very much on the implementation of these principles. The achievement was duly noted by reviewer Lexie Matheson (2011), who appreciated that One by One “exists on its own, doesn’t need explanation, doesn’t explain itself; it just unravels with delicacy and tenderness, like a good yarn should.
2
Treadwell, Jonathan R., James T. Reston, Benjamin Rouse, Joann Fontanarosa, Neha Patel et Nikhil K. Mull. Automated-Entry Patient-Generated Health Data for Chronic Conditions : The Evidence on Health Outcomes. Agency for Healthcare Research and Quality (AHRQ), mars 2021. http://dx.doi.org/10.23970/ahrqepctb38.
Texte intégralRésumé :
Background. Automated-entry consumer devices that collect and transmit patient-generated health data (PGHD) are being evaluated as potential tools to aid in the management of chronic diseases. The need exists to evaluate the evidence regarding consumer PGHD technologies, particularly for devices that have not gone through Food and Drug Administration evaluation. Purpose. To summarize the research related to automated-entry consumer health technologies that provide PGHD for the prevention or management of 11 chronic diseases. Methods. The project scope was determined through discussions with Key Informants. We searched MEDLINE and EMBASE (via EMBASE.com), In-Process MEDLINE and PubMed unique content (via PubMed.gov), and the Cochrane Database of Systematic Reviews for systematic reviews or controlled trials. We also searched ClinicalTrials.gov for ongoing studies. We assessed risk of bias and extracted data on health outcomes, surrogate outcomes, usability, sustainability, cost-effectiveness outcomes (quantifying the tradeoffs between health effects and cost), process outcomes, and other characteristics related to PGHD technologies. For isolated effects on health outcomes, we classified the results in one of four categories: (1) likely no effect, (2) unclear, (3) possible positive effect, or (4) likely positive effect. When we categorized the data as “unclear” based solely on health outcomes, we then examined and classified surrogate outcomes for that particular clinical condition. Findings. We identified 114 unique studies that met inclusion criteria. The largest number of studies addressed patients with hypertension (51 studies) and obesity (43 studies). Eighty-four trials used a single PGHD device, 23 used 2 PGHD devices, and the other 7 used 3 or more PGHD devices. Pedometers, blood pressure (BP) monitors, and scales were commonly used in the same studies. Overall, we found a “possible positive effect” of PGHD interventions on health outcomes for coronary artery disease, heart failure, and asthma. For obesity, we rated the health outcomes as unclear, and the surrogate outcomes (body mass index/weight) as likely no effect. For hypertension, we rated the health outcomes as unclear, and the surrogate outcomes (systolic BP/diastolic BP) as possible positive effect. For cardiac arrhythmias or conduction abnormalities we rated the health outcomes as unclear and the surrogate outcome (time to arrhythmia detection) as likely positive effect. The findings were “unclear” regarding PGHD interventions for diabetes prevention, sleep apnea, stroke, Parkinson’s disease, and chronic obstructive pulmonary disease. Most studies did not report harms related to PGHD interventions; the relatively few harms reported were minor and transient, with event rates usually comparable to harms in the control groups. Few studies reported cost-effectiveness analyses, and only for PGHD interventions for hypertension, coronary artery disease, and chronic obstructive pulmonary disease; the findings were variable across different chronic conditions and devices. Patient adherence to PGHD interventions was highly variable across studies, but patient acceptance/satisfaction and usability was generally fair to good. However, device engineers independently evaluated consumer wearable and handheld BP monitors and considered the user experience to be poor, while their assessment of smartphone-based electrocardiogram monitors found the user experience to be good. Student volunteers involved in device usability testing of the Weight Watchers Online app found it well-designed and relatively easy to use. Implications. Multiple randomized controlled trials (RCTs) have evaluated some PGHD technologies (e.g., pedometers, scales, BP monitors), particularly for obesity and hypertension, but health outcomes were generally underreported. We found evidence suggesting a possible positive effect of PGHD interventions on health outcomes for four chronic conditions. Lack of reporting of health outcomes and insufficient statistical power to assess these outcomes were the main reasons for “unclear” ratings. The majority of studies on PGHD technologies still focus on non-health-related outcomes. Future RCTs should focus on measurement of health outcomes. Furthermore, future RCTs should be designed to isolate the effect of the PGHD intervention from other components in a multicomponent intervention.
3
Granot, David, et Richard Amasino. Regulation of Senescence by Sugar Metabolism. United States Department of Agriculture, janvier 2003. http://dx.doi.org/10.32747/2003.7585189.bard.
Texte intégralRésumé :
Research objectives a. Analyze transgenic plants that undergo rapid senescence due to increased expression of hexokinase. b. Determine if hexokinase-induced senescence accelerates natural senescence using senescence specific promoters that drive expression of a reporter gene (GUS) and a cytokinin producing gene (IPT - isopentyl transferase). c. Isolate and analyze plant genes that suppress sugar-induced cell death (SICD) in yeast, genes that potentially are involved in programmed cell death and senescence in plants. Background to the topic Leaf senescence is a regulated process of programmed cell death (PCD) in which metabolites are recycled to other active parts of the plant. Senescence associated genes (SAGs) are expressed throughout leaf senescence. Sugar flux and metabolism is thought to playa fundamental regulatory role in senescence. We found that transgenic tomato plants with high hexokinase activity, the initial enzymatic step of sugar (hexose) metabolism, undergo rapid leaf senescence, directly correlated with hexokinase activity. These plants provide a unique opportunity to analyze the regulatory role of sugar metabolism in senescence, and its relation to cytokinin, a senescence-inhibiting hormone. In addition, we found that sugar induces programmed cells death of yeast cells in direct correlation to hexokinase activity. We proposed to use the sugar induced cell death (SICD) to isolate Arabidopsis genes that suppress SICD. Such genes could potentially be involved in senescence induced PCD in plants. Major conclusions The promoters of Arabidopsis senescence-associated genes, SAG12 and SAGI3, are expressed in senescing tomato leaves similar to their expression in Arabidopsis leaves, indicating that these promoters are good senescence markers for tomato plants. Increased hexokinase activity accelerated senescence and induced expression of pSAG12 and pSAG13 promoters in tomato plants, suggesting that sugar regulate natural senescence via hexokinase. Expression of IPT, a cytokinin producing gene, under pSAG12 and pSAG13 promoters, delayed senescence of tomato leaves. Yet, senescence accelerated by hexokinase was epistatic over cytokinin, indicating that sugar regulation of senescence is dominant over the senescence-inhibiting hormone. A gene designated SFP1, which is similar to the major super family monosaccharide transporters, is induced during leaf senescence in Arabidopsis and may be involved in sugar transport during senescence. Accordingly, adult leaves accumulate sugars that may accelerate hexokinase activity. Light status of the entire plant affects the senescence of individual leaves. When individual leaves are darkened, senescence is induced in the covered leaves. However, whole adult plant placed in darkness show delayed senescence. In a search for Arabidopsis genes that suppress SICD we isolated 8 cDNA clones which confer partial resistance to SICD. One of the clones encodes a vesicle associated membrane protein - VAMP. This is the first evidence that vesicle trafficking might be involved in cell death. Implications Increased hexokinase activity accelerates senescence. We hypothesized that, reduced hexokinase activity may delay senescence. Preliminary experiments using a hexokinase inhibitor support this possible implication. Currently we are analyzing various practical approaches to delay leaf senescence via hexokinase inhibition. .
4
BOND-SLIP TESTING AND PERFORMANCE EVALUATION OF SEMI-RIGID FLANGE FOLDED WEB SHEAR KEYS. The Hong Kong Institute of Steel Construction, décembre 2022. http://dx.doi.org/10.18057/ijasc.2022.18.4.3.
Texte intégralRésumé :
The shear key is crucial to the overall mechanical performance of the structure. A new type of semi-rigid connector-flange folded web shear key was proposed to determine the effective unity of higher bearing capacity and deformation. A total of five groups of specimens were designed, and the push-out test method was used to evaluate the ultimate bearing capacity, bond-slip process, failure mode, and strain distribution of the new shear key. The results show that before sliding, the embedded effect of the concrete and shear key is significant, and it has a significant sliding stiffness. After sliding, the steel plate in the middle of the opening of the outer folded plate buckles, which shows certain semi-rigid characteristics. Compared with equal-area studs, the bearing capacity of the new shear key is increased by more than 40%, and the deformation capacity exceeds 60 %, indicating good bond-slip performance. The constraint range of the shear key is greatly improved compared with the stud, and a trapezoidal area of constraint centered on the shear key is formed, accounting for more than half of the area of the concrete slab. Based on an experimental study, a practical calculation method of ultimate bearing capacity of the shear key is proposed, which can meet engineering safety requirements. Based on the analysis of bond-slip characteristics of different forms of shear keys, compared with the rigid T-shaped shear key, the slip load and ultimate bearing capacity of the new shear key are found to be increased by 39 % and 74 %, respectively, and the deformation capacity is increased more than 10-fold. Compared with the flexible stud shear connectors, the sliding load is increased by 86 %, the ultimate bearing capacity is increased more two-fold, and the stiffness is increased by nearly five times. The device exhibits good comprehensive performance.