Inhaltsverzeichnis
Auswahl der wissenschaftlichen Literatur zum Thema „Regenerative change“
Geben Sie eine Quelle nach APA, MLA, Chicago, Harvard und anderen Zitierweisen an
Machen Sie sich mit den Listen der aktuellen Artikel, Bücher, Dissertationen, Berichten und anderer wissenschaftlichen Quellen zum Thema "Regenerative change" bekannt.
Neben jedem Werk im Literaturverzeichnis ist die Option "Zur Bibliographie hinzufügen" verfügbar. Nutzen Sie sie, wird Ihre bibliographische Angabe des gewählten Werkes nach der nötigen Zitierweise (APA, MLA, Harvard, Chicago, Vancouver usw.) automatisch gestaltet.
Sie können auch den vollen Text der wissenschaftlichen Publikation im PDF-Format herunterladen und eine Online-Annotation der Arbeit lesen, wenn die relevanten Parameter in den Metadaten verfügbar sind.
Zeitschriftenartikel zum Thema "Regenerative change"
1
Green, Eric M., und Richard T. Lee. „Proteins and Small Molecules for Cellular Regenerative Medicine“. Physiological Reviews 93, Nr. 1 (Januar 2013): 311–25. http://dx.doi.org/10.1152/physrev.00005.2012.
Der volle Inhalt der QuelleAnnotation:
Regenerative medicine seeks to understand tissue development and homeostasis and build on that knowledge to enhance regeneration of injured tissues. By replenishing lost functional tissues and cells, regenerative medicine could change the treatment paradigm for a broad range of degenerative and ischemic diseases. Multipotent cells hold promise as potential building blocks for regenerating lost tissues, but successful tissue regeneration will depend on comprehensive control of multipotent cells–differentiation into a target cell type, delivery to a desired tissue, and integration into a durable functional structure. At each step of this process, proteins and small molecules provide essential signals and, in some cases, may themselves act as effective therapies. Identifying these signals is thus a fundamental goal of regenerative medicine. In this review we discuss current progress using proteins and small molecules to regulate tissue regeneration, both in combination with cellular therapies and as monotherapy.
2
Kim, Sang-Soo, und Yohji Okada. „Variable Resistance Type Energy Regenerative Damper Using Pulse Width Modulated Step-up Chopper“. Journal of Vibration and Acoustics 124, Nr. 1 (01.07.2001): 110–15. http://dx.doi.org/10.1115/1.1419204.
Der volle Inhalt der QuelleAnnotation:
This paper describes a new technique for improving the damping property and efficiency of an energy regenerative damper. It is intended for a linear DC motor type vibration damper to regenerate vibration energy efficiently. Normally a regenerative damper can regenerate vibration energy only at high speed motion. For low speed motion, the damper has nonlinear characteristics with dead zone and cannot regenerate energy. In order to overcome this problem, a step-up chopper is introduced between the actuator and the charging circuit. The energy is regenerated from low speed and low voltage actuator to high voltage charging circuit. This paper also proposes a new control technique to the step-up chopper by using pulse width modulated signals. The damper can change its damping coefficient and the energy can be regenerated more efficiently. The proposed damper is applied to an active mass damper system. A simple experimental setup is used to validate the proposed technique. The results show an increase in performance and energy regeneration as compared to the previously proposed regenerative damper.
3
Brockes, Jeremy P., und Phillip B. Gates. „Mechanisms underlying vertebrate limb regeneration: lessons from the salamander“. Biochemical Society Transactions 42, Nr. 3 (22.05.2014): 625–30. http://dx.doi.org/10.1042/bst20140002.
Der volle Inhalt der QuelleAnnotation:
Limb regeneration in adult salamanders proceeds by formation of a mound of progenitor cells called the limb blastema. It provides several pointers for regenerative medicine. These include the role of differentiated cells in the origin of the blastema, the role of regenerating axons of peripheral nerves and the importance of cell specification in conferring morphogenetic autonomy on the blastema. One aspect of regeneration that has received less attention is the ability to undergo multiple episodes without detectable change in the outcome, and with minimal effect of aging. We suggest that, although such pointers are valuable, it is important to understand why salamanders are the only adult tetrapod vertebrates able to regenerate their limbs. Although this remains a controversial issue, the existence of salamander-specific genes that play a significant role in the mechanism of regeneration provides evidence for the importance of local evolution, rather than a purely ancestral mechanism. The three-finger protein called Prod1 is discussed in the present article as an exemplar of this approach.
4
Zhang, Cheng Cai, Zhe Xiong, Zhi Gang Fang und Xue Xun Guo. „The Operating Principle and Experimental Verification of the Hydraulic Electromagnetic Energy-Regenerative Shock Absorber“. Advanced Materials Research 655-657 (Januar 2013): 1175–78. http://dx.doi.org/10.4028/www.scientific.net/amr.655-657.1175.
Der volle Inhalt der QuelleAnnotation:
This paper introduces a new type of shock absorber: hydraulic electromagnetic energy-regenerative shock absorber (HESA), which can simultaneously implement the function of damping vibration and regenerating a portion of dissipated energies generated from passing through the damping hole. A test bench was trial-produced and used to prove the feasibility of the energy-regenerative scheme. The situation that hydraulic motor rotational speed has a sudden change in the energy regenerating process is theoretically analyzed.
5
Tavakoli, Javad, Ashish D. Diwan und Joanne L. Tipper. „Advanced Strategies for the Regeneration of Lumbar Disc Annulus Fibrosus“. International Journal of Molecular Sciences 21, Nr. 14 (10.07.2020): 4889. http://dx.doi.org/10.3390/ijms21144889.
Der volle Inhalt der QuelleAnnotation:
Damage to the annulus fibrosus (AF), the outer region of the intervertebral disc (IVD), results in an undesirable condition that may accelerate IVD degeneration causing low back pain. Despite intense research interest, attempts to regenerate the IVD have failed so far and no effective strategy has translated into a successful clinical outcome. Of particular significance, the failure of strategies to repair the AF has been a major drawback in the regeneration of IVD and nucleus replacement. It is unlikely to secure regenerative mediators (cells, genes, and biomolecules) and artificial nucleus materials after injection with an unsealed AF, as IVD is exposed to significant load and large deformation during daily activities. The AF defects strongly change the mechanical properties of the IVD and activate catabolic routes that are responsible for accelerating IVD degeneration. Therefore, there is a strong need to develop effective therapeutic strategies to prevent or reconstruct AF damage to support operational IVD regenerative strategies and nucleus replacement. By the way of this review, repair and regenerative strategies for AF reconstruction, their current status, challenges ahead, and future outlooks were discussed.
6
Sun, Dongsheng, Junzhi Zhang, Chengkun He und Jinheng Han. „Dual-mode regenerative braking control strategy of electric vehicle based on active disturbance rejection control“. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 235, Nr. 6 (17.01.2021): 1483–96. http://dx.doi.org/10.1177/0954407020985642.
Der volle Inhalt der QuelleAnnotation:
The traditional regenerative braking control strategy usually uses the torque control mode and does not perform closed-loop control on the charging current, when the vehicle needs to be charged with a small current, the regenerative braking system cannot work effectively. The dual-mode regenerative braking control strategy proposed in this paper unifies the closed-loop control of regenerative current and the closed-loop control of regenerative torque. Especially when the battery is in a state of high charge or the temperature of the battery is too high or too low, this strategy can ensure charging safety, regeneration efficiency, and ride comfort. In the current closed-loop control mode, this proposal uses the ADRC controller to dynamically adjust the motor torque to achieve the purpose of accurately controlling the regenerative current. This method does not need to change the original vector control frame of the motor, which is convenient for engineering applications. The designed regenerative control strategy is verified through typical braking simulation. Bench tests are carried out and the results validate the feasibility and effectiveness of the designed strategy. Based on the realization of the safety of charging and the vehicle ride comfort, the proposed regenerative braking control strategy can achieve higher regeneration efficiency under the dynamical limitation of battery charging current, which further expands the operating range of the regenerative braking system.
7
Böckelmann, PK, BS Ochandio und IJ Bechara. „Histological study of the dynamics in epidermis regeneration of the carp tail fin (Cyprinus carpio, Linnaeus, 1758)“. Brazilian Journal of Biology 70, Nr. 1 (Februar 2010): 217–23. http://dx.doi.org/10.1590/s1519-69842010000100030.
Der volle Inhalt der QuelleAnnotation:
Teleostean fins when partially amputated suffer a regenerative process called epimorphic regeneration, characterized by the following stages: healing, based on the formation of a multistratified epidermal layer, the formation of a mass of pluripotent cells known as blastema, the differentiation of these cells, the synthesis and disposition of the extracellular matrix, morphological growth and restoration. The epidermis has a fundamental role in the regenerative process of fish fins, as the healing time of this structure leads it to a faster regenerative process and it also works as a defense against the external environment. In this sense, due to the fast regeneration shown by the epidermis, the aim of this paper is to study the histology of the regenerative dynamics of the carp fin tail (Cyprinus carpio), under the light and transmission electron microscope. Epidermic regeneration begins right in the first hours after the fin amputation and it continues throughout the regenerative process. After 24 hours, an apical epidermal cap is established. Cytoplasmatic prolongations and intercellular junctions are observed and the cells of the basal layer of the epidermis change from the cubic form to the cylindrical, due to the development of the cytoplasmatic organelles responsible for the synthesis of the basal membrane, lost after amputation. These results show the importance of histological studies in regenerative processes. We believe that the association of molecular biology with histological studies can throw further light onto these regenerative dynamics.
8
Nucci, R., A. Teodoro und E. Gama. „Liver regeneration and aging: a review“. Journal of Morphological Sciences 33, Nr. 04 (Oktober 2016): 179–82. http://dx.doi.org/10.4322/jms.100616.
Der volle Inhalt der QuelleAnnotation:
AbstractWith the advance of age, a clinically significant change is a marked decline in the rate of hepatic regeneration. Many studies described the mechanisms involved in the hepatic regenerative process with experimental procedures such as partial hepatectomy. The aim of the present study was to elucidate the molecular and cellular mechanisms involved in liver regeneration due to partial hepatectomy and the effects of aging on these mechanisms. We used PubMed, MEDLINE and Scholar Google databases investigating the following keywords without restrictions: liver, regeneration, aging. We included research studies (animal and humans) and reviews published in English language that were related to the liver regeneration and the process of aging. The regeneration on liver involves multiple cellular processes and a complex interaction with cytokines and growth factors. The aging process affects liver causing a delay on its regeneration. In a clinical setting, the decline of hepatic regenerative capacity could be considered an important concern, because most of the elderly use different medications which could provide a liver injury, as well as, one of the methods used to remove neoplastic cells is the partial hepatectomy which depends of the individual regenerative capacity.
9
Huang, Jinhui, Enrong Wang und Hailong Zhang. „Analysis and Research on the Comprehensive Performance of Vehicle Magnetorheological Regenerative Suspension“. Vehicles 2, Nr. 4 (22.10.2020): 576–88. http://dx.doi.org/10.3390/vehicles2040033.
Der volle Inhalt der QuelleAnnotation:
Magnetorheological (MR) regenerative suspension system can not only achieve excellent comprehensive suspension performance but also effectively recover and utilize vibration potential energy, which has been a research hotspot in the field of vehicle engineering. In this paper, for the 1/4 vehicle’s MR regenerative suspension system parallel with a tubular permanent magnet linear motor (TPMLM), the dynamic model of the MR semi-active suspension system and the TPMLM finite element model are established separately to form a joint simulation platform. The simulation analysis of the comprehensive suspension performance and regeneration performance under different road excitations is performed. The results show that installing TPMLM does not change the natural resonance frequency of the suspension system, which ensures good driving comfort and handling stability. At the same time, it has considerable regeneration power. This research can provide a reference for the stability analysis and popularization of the vehicle’s MR regenerative suspension system.
10
Järvinen, Tero A. H., und Toini Pemmari. „Systemically Administered, Target-Specific, Multi-Functional Therapeutic Recombinant Proteins in Regenerative Medicine“. Nanomaterials 10, Nr. 2 (28.01.2020): 226. http://dx.doi.org/10.3390/nano10020226.
Der volle Inhalt der QuelleAnnotation:
Growth factors, chemokines and cytokines guide tissue regeneration after injuries. However, their applications as recombinant proteins are almost non-existent due to the difficulty of maintaining their bioactivity in the protease-rich milieu of injured tissues in humans. Safety concerns have ruled out their systemic administration. The vascular system provides a natural platform for circumvent the limitations of the local delivery of protein-based therapeutics. Tissue selectivity in drug accumulation can be obtained as organ-specific molecular signatures exist in the blood vessels in each tissue, essentially forming a postal code system (“vascular zip codes”) within the vasculature. These target-specific “vascular zip codes” can be exploited in regenerative medicine as the angiogenic blood vessels in the regenerating tissues have a unique molecular signature. The identification of vascular homing peptides capable of finding these unique “vascular zip codes” after their systemic administration provides an appealing opportunity for the target-specific delivery of therapeutics to tissue injuries. Therapeutic proteins can be “packaged” together with homing peptides by expressing them as multi-functional recombinant proteins. These multi-functional recombinant proteins provide an example how molecular engineering gives to a compound an ability to home to regenerating tissue and enhance its therapeutic potential. Regenerative medicine has been dominated by the locally applied therapeutic approaches despite these therapies are not moving to clinical medicine with success. There might be a time to change the paradigm towards systemically administered, target organ-specific therapeutic molecules in future drug discovery and development for regenerative medicine.
Dissertationen zum Thema "Regenerative change"
1
Kristensson, Mikaela, und Sandra Pettersson. „Moving Beyond Sustainability : Change Agents Perceptions on a Regenerative Transition“. Thesis, Jönköping University, JIBS Entrepreneurship Centre, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-52869.
Der volle Inhalt der QuelleAnnotation:
Background: Climate change has become the most pressing challenge of our time. Current business approaches to sustainability are instrumental that may portray sustainability as a source of corporate profit rather than acting for change beyond mitigation and adaptation. A regenerative approach to sustainability challenges current practices and aims to create and strengthen environmental and social well-being. Purpose: The purpose of this study is to deepen the understanding of how change agents can be a part of a regenerative sustainability transition. This is done by investigating the attitudes of change agents to such a transition. The aim is to contribute to theoretical and practical implications of organizational change theory, addressing the phenomena of organizational regenerative sustainability. Method: The paradigm of this study is of critical realist nature with an exploratory research design. An abductive model inspired the research approach, and semi-structured interviews were performed to collect primary data. A thematic analysis was then performed to draw conclusions from this study. Results: The analysis uncovered both welcoming and reluctant attitudes toward a regenerative transition. The welcoming attitudes were inherently more optimistic toward a regenerative transition, whereas change agents with reluctant attitudes identified more challenges and barriers for implementing a regenerative transition simultaneously as their perspectives were more business-centered. When weighing the evidence, it appears that the welcoming attitudes are relatively more likely to have a positive impact on implementing regenerative change as well as succeed with the initiation.
2
Ramirez-Blust, Lynda Sue. „Social Aesthetics: Affecting Change in Food Provisioning“. Thesis, Virginia Tech, 2021. http://hdl.handle.net/10919/104164.
Der volle Inhalt der QuelleAnnotation:
Food embodies our most intimate relationship with nature. We ingest it to survive. Without it, perish. Through time humans have physically distanced the places of food cultivation from human inhabitation. In recent decades green planning initiatives embraced urban agriculture as a critical element of sustainable communities. However, current approaches to bring food cultivation into cities require labor, capital, and physical resources that are often unavailable in sufficient quantity, quality, or duration for provisioning sites to be considered sustainable. Within each pillar of sustainability - economy, ecology, and equity - barriers exist. Rooted in indigenous land stewardship and food provisioning practices, permaculture (permanent agriculture) offers strategies and tactics to overcome those barriers. Despite mounting evidence that permaculture will result in more sustainable food systems, adoption is limited.
Social aesthetics is the term employed by cultural theorists to describe how institutions, social groups, and collective projects codify their values and beliefs. The diffusion of innovation theory suggests that ideas and information from a highly specialized world require translation into a language the rest of society understands to reach widespread adoption. This thesis translates permaculture to contribute to a sustainable social aesthetic for food provisioning and change American food culture.
The translation occurs on iconic public land - 'America's front yard'. In 1901 the National Mall was envisaged to serve as a stage on which democratic values are expressed and became the prototype for America's City Beautiful movement. Today, its carpet of lawn framed by American Elm trees epitomizes the economic, ecological, and equity challenges of monoculture landscapes. This project aims to express democratic values through polyculture. It invites every citizen to participate in acts of justice rather than submit to illusions of order and control.
From site selection through design, spatial and temporal scale is critical. This thesis explores food's past to understand our present and imagine our future. The design creates an immersive food experience that equips visitors with the knowledge and resources to apply permaculture at the homestead, neighborhood, city, and regional scales. The remade front yard becomes the symbol of a country where places of food cultivation and human inhabitation are one and the same.Master of Landscape Architecture
Food embodies our most intimate relationship with nature. We ingest it to survive. Without it, perish. Through time humans have slowly increased the distance between where we grow our food (the country) and where we live (the city). In the process, we have built a system where millions of people either suffer from diet-related illnesses or experience hunger on a regular basis. We have damaged our soils and introduced chemicals that have contaminated our waters and polluted our air. We have built a system that both contributes to and is threatened by climate change. Our relationship with nature has become toxic. For decades there have been movements to change, transform, or replace the food system. In cities across the country, these movements appear as organic food in grocery stores, community gardens, urban farms, farmers' markets, farm-to-table restaurants, and more recently, food forests. The problem is each requires labor, capital, and physical resources that are often unavailable in sufficient quantity, quality, or duration for them to be sustainable, let alone scalable. What if there is another way to grow food - a way that heals the soil, decontaminates water, supports biodiversity, and provides enough for everyone? Rooted in indigenous land stewardship and food provisioning practices, permaculture (permanent agriculture) offers strategies and tactics to reverse the negative impacts of the existing food system. Despite mounting evidence that permaculture will result in more sustainable food systems, adoption is limited. For it to become mainstream, someone has to translate it into a language society understands. I try to do that through this thesis. My translation occurs on iconic public land - 'America's front yard'. In 1901 the National Mall was imagined to serve as a stage on which democratic values are expressed and became the prototype for America's City Beautiful movement. Today, its carpet of lawn framed by American Elm trees epitomizes the economic, ecological, and equity challenges of monoculture landscapes. This project aims to express democratic values through polyculture. This thesis explores food's past to understand our present and imagine our future. The design creates an immersive food experience that equips visitors with the knowledge and resources to apply permaculture at the homestead, neighborhood, city, and regional scales. The remade front yard becomes the symbol of a country where places of food cultivation and human inhabitation are one and the same.
3
Boardman, Henry Martin. „IBTSCoCT - a regenerative prototype for the reintroduction of hydrology in the City of Cape Town“. Diss., University of Pretoria, 2011. http://hdl.handle.net/2263/31463.
Der volle Inhalt der QuelleAnnotation:
The dissertation investigates the formative influence of hydrology in shaping the spatiality and socio-economic production processes of the urban environment. It acknowledges the surging pattern of human development, the unprecedented growth of cities and the reality of climate change to propose an intervention which aims to introduce the concept of Regenerative Architecture to a South African context. The intervention manifests as an Integrated Biotectural System for the Production and Reclamation of Water, a new architectural typology which is adapted to suit local conditions and to provide innovative possibilities for socio-economic production. The site of the intervention is located behind the G Berth in the Duncan Dock of the Port of Cape Town, extending up the Heerengracht Axis, the most prominent remnant of the formative influence of hydrology on the City of Cape Town. The intervention proposes to form part of a larger Continuous Productive Urban Landscape defined by water, which connects Robben Island – a UNESCO World Heritage Site – from Duncan Dock, through the Heerengracht, Adderley Street, the Company’s Gardens, Orange Street and De Waal Park through to Table Mountain. The intervention acts as a productive landscape that regenerates the connection between the city, the hidden and inaccessible shorelines and the socio-economic production processes those shorelines inherently represent. It harvests the heritage and cultural resources of a historically productive City of Cape Town to present the socio-economic production possibilities of the future: the generation of water and food and the regeneration of land within the urban environment. CopyrightDissertation (MArch(Prof))--University of Pretoria, 2011.
Architecture
Unrestricted
4
Palm, Rebecca, und Maja Sieczko. „Transitioning Towards the Regenerative Business Phase : An exploratory study of SMEs from the perspective of sustainability consultants“. Thesis, Jönköping University, IHH, Företagsekonomi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-52776.
Der volle Inhalt der QuelleAnnotation:
Background: The importance of sustainability is growing; however, the mindset of many businesses remains in the profit-driven take-make-waste economy, aiming for limitless growth. Humanity cannot continue with business-as-usual, and a paradigm shift must occur to ensure a future for the planet. SMEs represent 99% of the businesses in the EU, and to ensure a safer tomorrow for all, they need to evolve to reach sustainable development and capture the opportunities of regenerative strategies. Nevertheless, regenerative business practices are not widely appropriated in practice. Purpose: The purpose of the paper is to explore the phenomenon of regenerative businesses on SME level through the perspective of Swedish sustainability consultants. The authors aim to gain an understanding of the transformation processes in order to investigate if SMEs can reach a regenerative stage and, if so, how? Method: The study was conducted with an inductive qualitative approach under the interpretivism paradigm, and a multiple case study approach was chosen to best capture the phenomenon. The primary data was collected through semi-structured interviews with sustainability consultants from various SMEs in Sweden, and a thematic data analysis was conducted to interpret the empirical findings to relate them to the theories presented. Conclusion: The findings pointed to eight factors that enable and restrict SMEs in transitioning to a regenerative phase. Internally, SMEs are impacted in their transition by the mindset, values, sustainability awareness, strategy and communication, and the organizational structure of the business. In addition, the main external factors influencing the transition are the ambiguity regarding the sustainability concept and pressure from various stakeholders. The findings also highlighted the interconnectedness of the factors and the importance of a paradigm shift to whole systems thinking.
5
Dines, Nicholas. „Urban change and contested space in contemporary Naples“. Thesis, University College London (University of London), 2001. http://discovery.ucl.ac.uk/1317571/.
Der volle Inhalt der QuelleAnnotation:
The research project studies the impact of urban regeneration in the historic centre of Naples during the 1990s. It examines how the centre-left administration, elected in 1993, harnessed the city's cultural and architectural heritage with the view to encouraging tourism, attracting inward investment and fostering among Neapolitans a sense of civic pride and a greater participation in urban life. It is argued that the reimaging of the built environment during the 1990s entailed re-definitions of citizenship, public space and urban history and the construction of a consensual vision about a 'new' Naples, but that this process was at the same time renegotiated and contested by residents and city users. The research focuses on three key urban sites - two piazzas and a park built after the 1980 earthquake - in order to analyse how the material and discursive consequences of regeneration led to conflicts over meanings and uses of public space. These case studies involved extensive periods of observation and interviews as well as consultation of newspapers and historical material. The study of Piazza Plebiscito, a former car park pedestrianized in 1994 and since officially adopted as the city's new symbol, examines disparate notions of heritage and urban decorum. Piazza Garibaldi, located in front of the main railway station and reconceived during the 1990s as the 'gateway' to the historic centre, analyses the relationship between immigrants and the piazza and the representation of such groups in debates about the regenerational city. Lastly, DAMM, an occupied centro sociale ('social centre') situated in an abandoned neighbourhood park, examines both the representation of the central popular quarters in debates about the city's renovation and the attempts by a group of local residents and young people to organize an alternative public space.
6
Carpenter, Juliet. „Urban policy and social change in two Parisian neigbourhoods, 1962-1992“. Thesis, University of Sheffield, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361633.
Der volle Inhalt der Quelle
7
Winterhalder, Ralph Martinelli Michele. „Muscle degenerative and regenerative changes with high altitude exposure in humans /“. Bern, 1989. http://www.ub.unibe.ch/content/bibliotheken_sammlungen/sondersammlungen/dissen_bestellformular/index_ger.html.
Der volle Inhalt der Quelle
8
Campkin, B. „Dirt, blight and regeneration : a study of urban change in London“. Thesis, University College London (University of London), 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.625230.
Der volle Inhalt der Quelle
9
Miles, Malcolm Francis Richardson. „Art & social transformation : theories and practices in contemporary art for radical social change“. Thesis, Oxford Brookes University, 2000. http://radar.brookes.ac.uk/radar/items/0132de2c-a906-10e2-1e1e-c93c268829e2/1.
Der volle Inhalt der QuelleAnnotation:
Critical writing on public art in the late 20th century in the UK and USA either legitimized public art as an extension of studio art intended to widen its public, or implied a new relation to public space - as demonstrated in texts by Cork (1995) and Phillips (1988) respectively. This suggests a polarization of art's aesthetic and social dimensions. A deeper understanding of the relation between these dimensions is found in the work of Marcuse, Bloch and Adorno. Marcuse, in his early work, sees art as serving the needs of bourgeois society by displacing ideas of a better world to an independent aesthetic realm; Bloch sees art as giving form to hope, shaping a recurrent aspiration for a better world; Adorno sees the tension between the aesthetic and social dimensions of art as unresolvable, and, like Marcuse in his later work, sees art's autonomy as a space of criticality. But, as Bloch argues, conditions for change are noncontemporaneous, fostering culture which is both progressive and regressive. In this respect, Gablik's appropriations of other cultures may be seen as regressive, whilst Lippard's concern for locality offers art a basis for progressive intervention. The introduction of the local, as a point of reference alongside the aesthetic and social, leads to consideration of three cases of art practice: Common Ground's Parish Maps (1986-96), the Visions of Utopia Festival coordinated by the Artists Agency (1996-8), and 90% Crude (1996--), a project by PLATFORM in London. The originality of the thesis is in its investigation of these cases; and equally in making connections between them and the elements of art criticism and critical theory noted above.
10
Beckhoven, Ellen van. „Decline and regeneration : policy responses to processes of change in post-WWII urban neighbourhoods /“. Utrecht : Koninklijk Nederlands Aardrijkskundig Genootschap : Universiteit Utrecht, Faculteit Geowetenschappen, 2006. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=016413115&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Der volle Inhalt der QuelleBücher zum Thema "Regenerative change"
1
Managing change: Regenerating business. Cookham: CIM Publishing, 2001.
Den vollen Inhalt der Quelle finden
2
A healing art: Regeneration through autobiography. New York: Garland Pub., 1990.
Den vollen Inhalt der Quelle finden
3
Nick, Lawrie, Hrsg. Agilization: The regeneration of competitiveness. Glousestershire, UK: Management Books 2000, 2008.
Den vollen Inhalt der Quelle finden
4
Moriarty, Gerry. Releasing potential: Creativity and change : arts and regeneration in England's North West. Manchester: Arts Council England, 2003.
Den vollen Inhalt der Quelle finden
5
Bunt, Christian. The LDDC and social regeneration: The London Dockland Development Corporation and social regeneration : a change of approach or an unchanged agenda? Oxford: Oxford Brookes University, 1998.
Den vollen Inhalt der Quelle finden
6
The role of microenvironment in axonal regeneration: Influences of lesion-induced changes and glial implants on the regeneration of the postcommissural fornix. Berlin: Springer, 1997.
Den vollen Inhalt der Quelle finden
7
Genootschap, Koninklijk Nederlands Aardrijkskundig, und Universiteit te Utrecht, Hrsg. Decline and regeneration: Policy responses to processes of change in post-WWII urban neighbourhoods. Utrecht: Koninklijk Nederlands Aardrijkskundig Genootschap, 2006.
Den vollen Inhalt der Quelle finden
8
Beckhoven, Ellen van. Decline and regeneration: Policy responses to processes of change in post-WWII urban neighbourhoods. Utrecht: Koninklijk Nederlands Aardrijkskundig Genootschap, 2005.
Den vollen Inhalt der Quelle finden
9
Skinner, Alison. Young people: A force for positive social change : rethinking young people's involvement in regeneration. Leicester: Centre for Social Action, De Montfort University, 2001.
Den vollen Inhalt der Quelle finden
10
Ray, Hudson. Institutional change, cultural transformation and economic regeneration: Myths and realities from Europe's old industrial areas. [Durham, England]: Dept. of Geography, University of Durham, 1992.
Den vollen Inhalt der Quelle findenBuchteile zum Thema "Regenerative change"
1
Goddard, Tom. „Climate-Change Policy for Agriculture Offsets in Alberta, Canada“. In Regenerative Agriculture, 95–104. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-72224-1_8.
Der volle Inhalt der Quelle
2
Fox, Juliet. „Regenerative Voice“. In Community Radio's Amplification of Communication for Social Change, 191–215. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-17316-6_7.
Der volle Inhalt der Quelle
3
Wilson, Kathryn. „School Meals Programs: Connecting with Local Farmers to Provide Good, Sustainable Nutrition in School—And a Lever for Change“. In Regenerative Agriculture, 105–10. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-72224-1_9.
Der volle Inhalt der Quelle
4
Orova, Melinda, und András Reith. „How Rating Systems Support Regenerative Change in the Built Environment“. In Future City, 131–44. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71819-0_7.
Der volle Inhalt der QuelleAnnotation:
AbstractUrban development principles have evolved from sustainability, where the focus was on limiting the negative impact of urban environment, to restorative and regenerative sustainability, where positive impact is needed on global social and ecological systems. This recent paradigm shift requires the development of new tools for practitioners, like design methodologies, new technologies, and assessment methods.To measure the impact of sustainability on the built environment, several building-scale assessment tools exist. The question is how these widespread rating systems support restorative change in the built environment.The main question of the research is answered in three methodological steps. First, the goals of restorative sustainability are summarized from the available extensive literature, including the topics of Place, Energy, Water, Well-being, Carbon, Resources, Equity, Education, and Economics. Then different rating tools (Living Building Challenge, WELL, LEED, BREEAM, DGNB) are analysed how the considered issues and indicators in these rating tools are connected to restorative goals. Then these indicators are assessed how they serve that goal.The result of this study shows the main strengths and gaps in current wide-spread international rating tools regarding their support of restorative sustainability.
5
Heinonen, Jukka, und Juudit Ottelin. „Carbon Accounting for Regenerative Cities“. In Future City, 115–29. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71819-0_6.
Der volle Inhalt der QuelleAnnotation:
AbstractThe carbon budget for limiting global warming to the targeted 1.5 ° is running out. Cities have a central role in climate change mitigation, as the vast majority of all greenhouse gas emissions occur to satisfy the energy and material needs of cities and their residents. However, cities typically only account for their direct local emissions from transportation, industry, and energy production. This may lead to the so-called low-carbon illusion of cities following from producing little and reporting low emissions, while extensively relying on imported material and energy flows. Consumption-based accounting, or carbon footprinting, enables overcoming this problem by assigning the emissions to the end user regardless of the place of production. However, currently the carbon footprinting methods only capture the harm side, and not the potential positive effects, the restorative or regenerative impacts, caused by green infrastructure, reforestation, and carbon capture and storage, for example. These positive impacts are sometimes called “carbon handprint”. In this chapter, we create a handprint-extended carbon footprinting method to illustrate how restorative and regenerative impacts can be incorporated consistently in the carbon accounting of cities and carbon footprints of consumers. We also link the discussion on regenerative cities with the remaining carbon budgets.
6
Bleil de Souza, Clarice, und Ilya Vladimirovich Dunichkin. „Axiomatic Design in Regenerative Urban Climate Adaptation“. In Future City, 5–21. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71819-0_1.
Der volle Inhalt der QuelleAnnotation:
AbstractThis chapter invokes the urban design community to provide transparency in design decision-making by discussing the role of design specifications and the production of evidence in enabling scrutiny and accountability of design proposals in relation to fulfilling sustainability goals and fighting climate change. It claims that original and verifiable regenerative design solutions emerge from clear design specifications supported by evidence, rather than normative sustainability alone. Evidence is understood as going beyond targets and extended to design specifications which are constantly tested in terms of flexibility and robustness, positively contributing to the ecosystem they are inserted in, once further decomposed towards a more detailed design proposal. Principles from Axiomatic Design are proposed as an approach to develop design specifications for regenerative climate adaptive urban design. This work attempts to illustrate the use of this method to practitioners through an example in which human-centric needs, values and aspirations are transformed into joint urban air pollution and outdoor bioclimatic comfort design requirements to be fulfilled by greenery, a regenerative design parameter common to both knowledge domains at the pedestrian layer of the urban environment.
7
Andreucci, Maria Beatrice, und Antonino Marvuglia. „Investigating, Implementing and Funding Regenerative Urban Design in a Post-COVID-19 Pandemic Built Environment: A Reading Through Selected UN Sustainable Development Goals and the European Green Deal“. In Future City, 395–413. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71819-0_22.
Der volle Inhalt der QuelleAnnotation:
AbstractBefore the world was impacted by COVID-19, progress towards the 2030 UN Sustainable Development Goals (SDGs) was already uneven, and a more focused attention was needed in most SDGs’ target areas. The pandemic abruptly disrupted plans and efforts towards urban transition, in some cases reverting decades of progress. The concept of resilience changed in 2020 and having to face severe health issues combined with increased socio-economic challenges in a climate change scenario, cities must urgently explore on how best to combine environmental goals with economic recovery and social justice, modifying on-going plans and initiatives, while re-arranging priorities. Acknowledging the impact that the pandemic will produce, for the years to come, on processes and initiatives towards a regenerative economy, this contribution describes most recent strategies aimed at urban transition in Europe, and critically discusses available options with respect to implementation and funding, within the framework of selected UN SDGs. Our conclusions challenge the ability of our modern society to put in practice the needed urgent actions, and call for a paradigm shift to prepare Europe to deal with climate disruptions, activate transition to a healthy and prosperous future within the planetary boundaries, and scale up solutions that will trigger transformations for the benefit of people and the environment.
8
Pinnegar, Simon, Robert Freestone und Ilan Wiesel. „Incremental change with significant outcomes“. In Urban Regeneration in Australia, 295–310. New York : Routledge, 2018.: Routledge, 2018. http://dx.doi.org/10.4324/9781315548722-14.
Der volle Inhalt der Quelle
9
Huntjens, Patrick. „Conclusion“. In Towards a Natural Social Contract, 171–76. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-67130-3_8.
Der volle Inhalt der QuelleAnnotation:
AbstractIn this book, I argue that the societal fault lines of our times are deeply intertwined and that they confront us with challenges affecting the security, fairness, and sustainability of our societies. Overcoming these existential challenges will require a fundamental shift from our current anthropocentric and economic growth-oriented approach to a more ecocentric and regenerative approach. The outline of a Natural Social Contract presented in this book serves as a counter-proposal to existing social contracts. A Natural Social Contract implies an existential change in the way humankind lives in and interacts with its social and natural environment, and emphasizes long-term sustainability and the general welfare of both humankind and planet Earth. Achieving this crucial balance calls for an end to unlimited economic growth, overconsumption, and overindividualization for the benefit of ourselves, our planet, and future generations. To this end, sustainability, health, and justice in all social-ecological systems will require systemic innovation and prioritizing a collective effort. The Transformative Social-Ecological Innovation (TSEI) framework presented in this book serves that cause. It helps to diagnose and advance innovation and spur change across sectors, disciplines, and at different levels of governance. Altogether, TSEI identifies intervention points and formulates jointly developed and shared solutions to inform policy- and lawmakers, administrators, concerned citizens, and professionals dedicated towards a more sustainable, healthy, and just society.
10
Huntjens, Patrick. „Transition to a Sustainable and Healthy Agri-Food System“. In Towards a Natural Social Contract, 139–57. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-67130-3_6.
Der volle Inhalt der QuelleAnnotation:
AbstractThis chapter highlights various challenges and developments related to our current global food production and consumption systems, followed by a number of research and innovation activities that actively support a transition to a sustainable, healthy, and just agri-food system. The first section identifies several important trends that may either limit, support, or influence such a transition (Sect. 6.1). Following this, I will provide an overview of several research and innovation activities that our research group is currently involved in, such as the Dutch national research programme (NWA) ‘Transition to a Sustainable Food System’ (Sect. 6.2), nature-inclusive and regenerative agriculture (Sect. 6.3), closing the gaps between citizens, farmers, and nature (Sect. 6.4), measuring sustainability and health aspects of our food supply chains (Sect. 6.5), and the South Holland Food Family, an open innovation and food transition network (Sect. 6.6). This last section also provides an example of TSEI-framework application to analyze institutional change during initiation, development, and implementation of the South Holland Food Family innovation network (Sect. 6.6).
Konferenzberichte zum Thema "Regenerative change"
1
Felcis, Elgars, und Weronika Felcis. „Ready for change? Interlinkages of traditional and novel practices through permaculture“. In 22nd International Scientific Conference. “Economic Science for Rural Development 2021”. Latvia University of Life Sciences and Technologies. Faculty of Economics and Social Development, 2021. http://dx.doi.org/10.22616/esrd.2021.55.056.
Der volle Inhalt der QuelleAnnotation:
This paper is based on ongoing participatory action research in Latvia since 2016. The research was initially developed within the Marie Curie Innovative Training Network SUSPLACE and is further advanced by the Latvian Council of Science funded project ‘Ready for change? Sustainable management of common natural resources (RFC)’. By using this approach, the researchers aim to, firstly, synthesise natural, climate science and economic systems evidence of the immense transformations required towards regeneration and, secondly, engage in active knowledge brokerage and societal change advancement. Authors encourage to limit the application of the abused term ‘sustainable’ as it has rather meant to ‘sustain the unsustainable’ across the last decades and to follow the logic of ‘regeneration’ instead. The bridging of practices with the permaculture movement can be summarised in three broad groups of regenerative transformations to develop resilience against environmental breakdown – firstly, organic growing or gardening, secondly, ecological building, and thirdly, ecological lifestyle practices. These examples are arising both from particular collaborations with the selected permaculture homesteads as well as from the general environmental and social activism in Latvia. A common expression claims that ‘everything new is well forgotten old’. It resonates very well with the permaculture ethics and movement emphasising not forgetting yet critically assessing the long-developed skills and practices. This paper demonstrates that in addition to the challenging global aims, on the local level the success of permaculture depends on its ability to be deeply embedded in localities and revive cultural, local practices that people feel a connection to.
2
Lato, Thomas, Huiyong Zhao, Lin Zhao und Yuping He. „An Energy-Regenerative Suspension System“. In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-86143.
Der volle Inhalt der QuelleAnnotation:
This paper presents an energy-regenerative suspension device that is able to harvest some of the wasted energy that is generated in a suspension system. For a traditional road vehicle suspension system, shock absorbers are mainly dissipating energy to reduce vibration. The dissipated energy may be collected to improve the fuel economy of road vehicles. In this research, CarSim and Simulink are used to simulate and determine the harvestable energy in a conventional shock absorber under different operating conditions. A conceptual energy-regenerative absorber is designed and tested using a fabricated prototype. A variable speed motor is implemented to adapt the change of stroke length of a mechanism due to the various road roughness. Instruments, e.g., laser tachometer, pressure gauge, ammeter, voltmeter, and stopwatch, are used to collect data. The simulation and prototype testing results indicate that the proposed energy-regenerative suspension device could harvest dissipated energy to improve vehicle fuel economy.
3
Chen, Cheng, Xiaobo Zhong, Jun Xiao, Yong Zhu und Jiao Jiang. „Performance Monitoring of Regenerative System Based on Dominant Factor Method“. In ASME 2017 Power Conference Joint With ICOPE-17 collocated with the ASME 2017 11th International Conference on Energy Sustainability, the ASME 2017 15th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2017 Nuclear Forum. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/power-icope2017-3534.
Der volle Inhalt der QuelleAnnotation:
Safe and efficient operation of a power plant is the system designers’ target. Regenerative system improves the Rankine Cycle efficiency of a power station. However, it is quite difficult to monitor the regenerative system’s performance in an accurate, economical and real-time way at any operation load. There are two main problems about this. One is that most model based on numerical and statistics approaches cannot be explained by the actual operation mechanism of the actual process. The other is that most mechanism models in the past could not be used to monitor the system performance accurately at real-time. This paper focuses on solving these two problems and finds a better way to monitor the regenerative system’s performance accurately in a real-time by the analysis of the mechanism models and numerical methods. It is called the dominant factor method. Two important parameters (characteristic parameter and dominant factor) and characteristic functions are introduced in this paper. Also, this paper described the analysis process and the model building process. In the paper, the mathematics model building process is based on a 1000MW unit’s regenerative system. Characteristic functions are built based on the specific operating data of the power unit. Combing the general mechanism model and the characteristic function together, this paper builds up a regenerative system off-design mathematical model. First, this paper proved the model accuracy by computer simulation. Then, the models were used to predict the pressure of the piping outlet, the temperature of the outlet feedwater and drain water of heaters in a real-time by computers. The results show that the deviation rate between the theoretical predictions and the actual operation data is less than 0.25% during the whole operation load range. At last, in order to test the fault identification ability of this model, some real tests were done in this 1000MW power plant during the actual operation period. The performance changes are identified via the difference between the predict value and the real time value. The result of the tests shows that the performance’s gradient change and sudden change could be found by the model result easily. In order to verify the adaptability of the model, it was used for another 300MW unit, and done some operation test. The results show that this method can also be used for the 300MW unit’s regenerative system. And it can help the operator to recognize the fault heater. The results of this paper proved that the dominant factor method is feasible for performance monitoring of the regenerative system. It can be used to monitor and find the fault of the regenerative system at any operation load by an accurate and fast way in real-time.
4
Martin, Richard J., und Jeff D. Colwell. „De Novo VOC From Regenerative Thermal Oxidizers“. In ASME 2003 Heat Transfer Summer Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ht2003-47557.
Der volle Inhalt der QuelleAnnotation:
Regenerative thermal oxidizers are used extensively for the abatement of volatile organic compound (VOC) emissions from process vent streams. Due to the unique heat storage and convection properties of the ceramic packing utilized, they are especially well suited for applications with high flows and dilute concentrations of organic vapors. However, packed-bed devices such as these are known to be vulnerable to interstitial plugging when processing vent streams that contain particulate matter in addition to the VOC. In this paper, the authors postulate a new failure mode that involves relatively small concentrations of organic solids in the vent stream, and that may lead to serious performance deficiencies long before interstitial plugging becomes problematic. Specifically, we assert that “De Novo VOC” can be generated from organic particulate matter that adheres temporarily to the bed and is revaporized when the flow is reversed, causing a significant decrease in the apparent destruction efficiency of the abatement device. In this theoretical treatment, the spatial and temporal response of a hypothetical thermal bed is compared against the phase-change and combustion characteristics of a common organic solid, in order to estimate particle loading levels that may pose immediate compliance problems for users of these systems. Although experimental data are not available to corroborate the conclusions reached herein, the authors contend that routine carryover of small amounts of organic particles from a collection device (e.g., baghouse) to the thermal destruction system can create high exhaust VOC levels, and may eventually lead to hostile fires in the beds. As a means of mitigating against such failures, the authors recommend that an inlet particulate loading limit be implemented for all regenerative thermal oxidizer installations.
5
Oliveira, Luciana M., Marco A. R. Nascimento und Gene´sio J. Menon. „The Thermal Impact of Using Syngas as Fuel in the Regenerator of Regenerative Gas Turbine Engine“. In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59846.
Der volle Inhalt der QuelleAnnotation:
Environment and energy are driven force of human survival and development. Nowadays the use of primary energy comprises mostly mineral fuels, which have limited reserves and whose utilization may cause serious environmental impacts. Attention has been paid to discover clean and renewable resources such as syngas which is an important renewable source of energy and is environment friendly. The use of syngas from biomass gasification process as fuel in regenerative gas turbine causes an increase in turbine exhaust mass flow and a change in the gas composition due to a low heat value. As a result, the regenerator changes its size, thermal characteristics, weight and cost compared with the use of natural gas as fuel. The aim of this work is to assess the thermal performance, the size and the cost of the recuperator of 600 kW regenerative gas turbine engine when designed for syngas and natural gas. Two different types of surfaces, Cross-Corrugated and Undulated-Corrugated, are used for analysis. The results are shown, comparing heat transfer coefficient, effectiveness, pressure loss, size and cost for syngas and natural gas.
6
Hu, Xizhuo, Zhi Tao, Jianqin Zhu und Haiwang Li. „Numerical Study of Pyrolysis Effects on Supercritical-Pressure Flow and Conjugate Heat Transfer of N-Decane in the Square Channel“. In ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gt2017-63970.
Der volle Inhalt der QuelleAnnotation:
Regenerative cooling has become the most effective and practical method of thermal protection to the high temperature structures of scramjet engines. Pyrolytic reactions of endothermic hydrocarbon fuel have significant influence on the regenerative cooling process at high temperature due to a large amount of heat absorption and fluid components change. In this paper, a three-dimensional (3D) model is developed for numerically investigating the flow and heat transfer of pyrolytic reacted n-decane in the square engine cooling channel under supercritical pressure with asymmetrical heating imposed on the bottom channel surface. The one-step global pyrolytic reaction mechanism consisting of 18 species is adopted to simulate the pyrolysis process of n-decane. The governing equations for species continuum, momentum, energy and the k-ω turbulence equation are properly solved, with accurate computations of the thermophysical and transport properties of fluid mixture, which undergo drastic variations and exert strong impact on fluid flow and heat transfer process in the channel. The numerical method is validated based on the good agreement between the current predictions and the experimental data. Numerical studies of the pyrolysis effects on the characteristics of flow resistance and conjugate heat transfer under various operating conditions have been conducted. Results reveal that pyrolysis intensively takes place in high temperature regions. The pressure drop along the channel steeply rise due to the further fluid acceleration caused by pyrolysis. It is found that the variations of heat flux at the bottom, top and side fluid-solid-interface walls are totally different. Pyrolysis could lead to greater heat transfer enhancement at the bottom interface, consequently, more heat is transferred into the fluid region through the bottom interface. The dual effects of heat absorption and enhanced heat transfer caused by pyrolysis produce strong influence on the wall temperature. The mechanism of these physicochemical phenomena are also analyzed in detail, which is conducive to fundamentally understand the complicated physicochemical process of regenerative cooling. The present work has profound significance for the development of regenerative cooling technology.
7
Weismann, Stephan, F. Klinker, D. Büttner und H. Weinläder. „Energy Efficient Building Cooling by Combining a Regenerative Cooling System, a Large Tes and a Phase Change Material Cooling Ceiling“. In EuroSun2016. Freiburg, Germany: International Solar Energy Society, 2016. http://dx.doi.org/10.18086/eurosun.2016.03.04.
Der volle Inhalt der Quelle
8
Tsuji, Tadashi. „Performance Analysis On Gas Engine – Gas Turbine Combined Cycle Integrated With Regenerative Gas Turbine“. In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-27198.
Der volle Inhalt der QuelleAnnotation:
The gas engine-gas turbine combined cycle was developed as the ETCS (Engine Turbo Compound System) that has a potential to be a future high performance combined cycle. The reciprocating engine operates with a maximum pressure and temperature in the cylinder, higher than that of the conventional gas turbines. When the gas engine is integrated with a gas turbine instead of a turbocharger, the concept of the ETCS with ERGT (Engine Reheat Gas Turbine) is available. In order to attain a better ETCS performance, a natural gas firing RGT (Regenerative Gas Turbine) was selected as the core gas turbine. For the system integration, the recuperator of RGT was exchanged for a gas engine. Focusing on the effect of engine exhaust temperature, we found that the ETCS cycle with ERGT has the potential to achieve a higher thermal efficiency than that of a re-generative cycle gas turbine with no change of TIT (Turbine Inlet Temperature). The engine exhaust temperature of 900°C increases the system power generation efficiency from 39% of RGT to 45% in ERGT (GT-Gas Engine) and up to 59% in ETCS (GT-Gas Engine-Steam Turbine) (TIT 1200°C).
9
Suprock, Christopher A., Robert B. Jerard und Barry K. Fussell. „In Situ Chatter Frequency Prediction Using Torque Data From a Wireless Sensor Integrated Tool Holder“. In ASME 2009 International Manufacturing Science and Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/msec2009-84357.
Der volle Inhalt der QuelleAnnotation:
A method is demonstrated to estimate chatter frequencies in real time from cutting torque data using formant frequency tracking. Formant frequencies are derived from the torque data using linear predictive coding (LPC) methods, similar to algorithms used in speech recognition. The estimated frequency response is observed to change throughout a cut as a function of both engagement and cut geometry. Torque data is collected at high bandwidth from a wireless sensor integrated end milling tool holder. The technique is found to be effective and repeatable for forecasting regenerative chatter frequencies in real time. Chatter frequencies predicted during non-chatter conditions correctly estimate the actual chatter condition. To demonstrate the technique, a number of experimental cuts are conducted and discussed.
10
Vinogradov, V., A. Orberg, V. Soudarev und E. Shevchenko. „Tubular Regenerator Development and Incorporation Experience“. In ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/gt2003-38035.
Der volle Inhalt der QuelleAnnotation:
A review of regenerative gas turbines operating at natural gas pipeline compressor stations across the Russia has been performed. Main performance characteristics, first of all, the power and efficiency of the recuperated gas turbines, many of those have been used up a design service life, can be recovered. Since a large negative effect on the performances is contributed by defective plate-type regenerators, their change seems to be essential when updating gas-pumping units. A tubular regenerator is developed and incorporated into the gas turbines for driving natural gas blowers. The regenerator being installed in place of the plate-type heat exchanger joints a rather simple fabrication process and high durability. Its design features are presented and discussed. Ways to enhance efficiency and decrease the weight of the regenerator are considered.
Berichte der Organisationen zum Thema "Regenerative change"
1
Reich, Peter B. Final Technical Report on Warming-Induced Biome Change at the Temperate-Boreal Ecotone: An Experimental Test of Key Regeneration Processes. Office of Scientific and Technical Information (OSTI), Juli 2018. http://dx.doi.org/10.2172/1523655.
Der volle Inhalt der Quelle
2
Brophy, Kenny, und Alison Sheridan, Hrsg. Neolithic Scotland: ScARF Panel Report. Society of Antiquaries of Scotland, Juni 2012. http://dx.doi.org/10.9750/scarf.06.2012.196.
Der volle Inhalt der QuelleAnnotation:
The main recommendations of the Panel report can be summarised as follows: The Overall Picture: more needs to be understood about the process of acculturation of indigenous communities; about the Atlantic, Breton strand of Neolithisation; about the ‘how and why’ of the spread of Grooved Ware use and its associated practices and traditions; and about reactions to Continental Beaker novelties which appeared from the 25th century. The Detailed Picture: Our understanding of developments in different parts of Scotland is very uneven, with Shetland and the north-west mainland being in particular need of targeted research. Also, here and elsewhere in Scotland, the chronology of developments needs to be clarified, especially as regards developments in the Hebrides. Lifeways and Lifestyles: Research needs to be directed towards filling the substantial gaps in our understanding of: i) subsistence strategies; ii) landscape use (including issues of population size and distribution); iii) environmental change and its consequences – and in particular issues of sea level rise, peat formation and woodland regeneration; and iv) the nature and organisation of the places where people lived; and to track changes over time in all of these. Material Culture and Use of Resources: In addition to fine-tuning our characterisation of material culture and resource use (and its changes over the course of the Neolithic), we need to apply a wider range of analytical approaches in order to discover more about manufacture and use.Some basic questions still need to be addressed (e.g. the chronology of felsite use in Shetland; what kind of pottery was in use, c 3000–2500, in areas where Grooved Ware was not used, etc.) and are outlined in the relevant section of the document. Our knowledge of organic artefacts is very limited, so research in waterlogged contexts is desirable. Identity, Society, Belief Systems: Basic questions about the organisation of society need to be addressed: are we dealing with communities that started out as egalitarian, but (in some regions) became socially differentiated? Can we identify acculturated indigenous people? How much mobility, and what kind of mobility, was there at different times during the Neolithic? And our chronology of certain monument types and key sites (including the Ring of Brodgar, despite its recent excavation) requires to be clarified, especially since we now know that certain types of monument (including Clava cairns) were not built during the Neolithic. The way in which certain types of site (e.g. large palisaded enclosures) were used remains to be clarified. Research and methodological issues: There is still much ignorance of the results of past and current research, so more effective means of dissemination are required. Basic inventory information (e.g. the Scottish Human Remains Database) needs to be compiled, and Canmore and museum database information needs to be updated and expanded – and, where not already available online, placed online, preferably with a Scottish Neolithic e-hub that directs the enquirer to all the available sources of information. The Historic Scotland on-line radiocarbon date inventory needs to be resurrected and kept up to date. Under-used resources, including the rich aerial photography archive in the NMRS, need to have their potential fully exploited. Multi-disciplinary, collaborative research (and the application of GIS modelling to spatial data in order to process the results) is vital if we are to escape from the current ‘silo’ approach and address key research questions from a range of perspectives; and awareness of relevant research outside Scotland is essential if we are to avoid reinventing the wheel. Our perspective needs to encompass multi-scale approaches, so that ScARF Neolithic Panel Report iv developments within Scotland can be understood at a local, regional and wider level. Most importantly, the right questions need to be framed, and the right research strategies need to be developed, in order to extract the maximum amount of information about the Scottish Neolithic.
3
Tree-regeneration and mortality patterns and hydrologic change in a forested karst wetland--Sinking Pond, Arnold Air Force Base, Tennessee. US Geological Survey, 2004. http://dx.doi.org/10.3133/wri034217.
Der volle Inhalt der Quelle