Littérature scientifique sur le sujet « Global peak »

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Articles de revues sur le sujet "Global peak"

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Bretherton, Charlotte, et John Vogler. « A global actor past its peak ? » International Relations 27, no 3 (septembre 2013) : 375–90. http://dx.doi.org/10.1177/0047117813497299.

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Van Benthem, M. H., P. G. Kotula, M. Marinella, W. Mook et K. L. Jungjohann. « Global Analysis Peak Fitting Applied to EELS Images ». Microscopy and Microanalysis 21, S3 (août 2015) : 1421–22. http://dx.doi.org/10.1017/s1431927615007886.

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Wang, Yuncheng, Weiwu Fang et Tianjiao Wu. « A cut-peak function method for global optimization ». Journal of Computational and Applied Mathematics 230, no 1 (août 2009) : 135–42. http://dx.doi.org/10.1016/j.cam.2008.10.069.

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Shiuly, Amit. « Global Attenuation Relationship for Estimating Peak Ground Acceleration ». Journal of the Geological Society of India 92, no 1 (juillet 2018) : 54–58. http://dx.doi.org/10.1007/s12594-018-0952-4.

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Seshadri, Ashwin K. « Fast–slow climate dynamics and peak global warming ». Climate Dynamics 48, no 7-8 (3 juin 2016) : 2235–53. http://dx.doi.org/10.1007/s00382-016-3202-8.

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Deng, Beichuan, Seongho Kim, Hengguang LI, Elisabeth Heath et Xiang Zhang. « Global peak alignment for comprehensive two-dimensional gas chromatography mass spectrometry using point matching algorithms ». Journal of Bioinformatics and Computational Biology 14, no 06 (décembre 2016) : 1650032. http://dx.doi.org/10.1142/s0219720016500323.

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Comprehensive two-dimensional gas chromatography coupled with mass spectrometry (GC[Formula: see text][Formula: see text][Formula: see text]GC-MS) has been used to analyze multiple samples in a metabolomics study. However, due to some uncontrollable experimental conditions, such as the differences in temperature or pressure, matrix effects on samples and stationary phase degradation, there is always a shift of retention times in the two GC columns between samples. In order to correct the retention time shifts in GC[Formula: see text][Formula: see text][Formula: see text]GC-MS, the peak alignment is a crucial data analysis step to recognize the peaks generated by the same metabolite in different samples. Two approaches have been developed for GC[Formula: see text][Formula: see text][Formula: see text]GC-MS data alignment: profile alignment and peak matching alignment. However, these existing alignment methods are all based on a local alignment, resulting that a peak may not be correctly aligned in a dense chromatographic region where many peaks are present in a small region. False alignment will result in false discovery in the downstream statistical analysis. We, therefore, develop a global comparison-based peak alignment method using point matching algorithm (PMA-PA) for both homogeneous and heterogeneous data. The developed algorithm PMA-PA first extracts feature points (peaks) in the chromatography and then searches globally the matching peaks in the consecutive chromatography by adopting the projection of rigid and nonrigid transformation. PMA-PA is further applied to two real experimental data sets, showing that PMA-PA is a promising peak alignment algorithm for both homogenous and heterogeneous data in terms of [Formula: see text]1 score, although it uses only peak location information.
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A. Alturki, Fahd, Abdullrahman A. Al-Shamma’a et Hassan M. H. Farh. « Simulations and dSPACE Real-Time Implementation of Photovoltaic Global Maximum Power Extraction under Partial Shading ». Sustainability 12, no 9 (1 mai 2020) : 3652. http://dx.doi.org/10.3390/su12093652.

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Under partial shading conditions (PSCs), solar photovoltaic (PV) energy systems generate multiple peaks; one global peak (GP) and several local peaks (LPs). Thus, tracking the GP of the PV systems under PSCs is necessary to enhance the system reliability and efficiency. Conventional maximum power point tracker (MPPT) algorithms are capable of tracking the unique peak under uniform conditions but they fail to track the GP under PSCs. To the best of our knowledge, this paper represents the first study that introduces a comprehensive comparison of three efficient maximum power point tracker (MPPT) algorithms that are used to extract the GP of the PV system under both uniform and PSCs. These MPPT techniques include two metaheuristic techniques, which are cuckoo search optimization (CSO) and particle swarm optimization (PSO) techniques in addition to one conventional MPPT; perturb and observe (P&O). Although the simulation and dSPACE-based experimental results demonstrated the superiority of CSO and PSO in tracking the GP, CSO requires less tracking time and thus provides a higher efficiency than the PSO. In addition, P&O can be used to follow the first peak, regardless if it is a local peak or global peak with notable oscillation.
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MAGGI, STEFANO, et SERGIO RINALDI. « SYNCHRONIZATION AND PEAK-TO-PEAK DYNAMICS IN NETWORKS OF LOW-DIMENSIONAL CHAOTIC OSCILLATORS ». International Journal of Bifurcation and Chaos 16, no 12 (décembre 2006) : 3631–42. http://dx.doi.org/10.1142/s0218127406017026.

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In this paper we study the relationships between local and global properties in networks of dynamical systems by focusing on two global properties, synchronization and peak-to-peak dynamics, and on two local properties, coherence of the components of the network and coupling strength. The analysis is restricted to networks of low-dimensional chaotic oscillators, i.e. oscillators which have peak-to-peak dynamics when they work in isolation. The results are obtained through simulation, first by considering pairs of coupled Lorenz, Rössler and Chua systems, and then by studying the behavior of spatially extended tritrophic food chains described by the Rosenzweig–MacArthur model. The conclusion is that synchronization and peak-to-peak dynamics are different aspects of the same collective behavior, which is easily obtained by enhancing local coupling and coherence. The importance of these findings is briefly discussed within the context of ecological modeling.
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Herold, C., et F. Mouton. « Global flood hazard mapping using statistical peak flow estimates ». Hydrology and Earth System Sciences Discussions 8, no 1 (18 janvier 2011) : 305–63. http://dx.doi.org/10.5194/hessd-8-305-2011.

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Abstract. Our aim is to produce a world map of flooded areas for a 100 year return period, using a method based on large rivers peak flow estimates derived from mean monthly discharge time-series. Therefore, the map is supposed to represent flooding that affects large river floodplains, but not events triggered by specific conditions like coastal or flash flooding for instance. We first generate for each basin a set of hydromorphometric, land cover and climatic variables. In case of an available discharge record station at the basin outlet, we base the hundred year peak flow estimate on the corresponding time-series. Peak flow magnitude for basin outlets without gauging stations is estimated by statistical means, performing several regressions on the basin variables. These peak flow estimates enable the computation of corresponding flooded areas using hydrologic GIS processing on digital elevation model.
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Bodger, P. S., G. D. Irwin, D. A. Woodford et A. M. Gole. « Global Steady-State Chaotic Behaviour of Power Systems Containing D.C. » International Journal of Electrical Engineering & ; Education 34, no 4 (octobre 1997) : 291–307. http://dx.doi.org/10.1177/002072099703400401.

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The steady-state chaotic behaviour of power systems containing dc switching elements is displayed in multiple run diagrams. Poincare sampling bifurcation diagrams, maximum and minimum peak voltage diagrams and diagrams showing all peaks in a waveform indicate transitions in behaviour, overvoltages and waveform distortion respectively.
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Thèses sur le sujet "Global peak"

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Sorrell, Steve. « Analysing controversies in energy policy : assessing the evidence for rebound effects and global oil depletion ». Thesis, University of Exeter, 2012. http://hdl.handle.net/10871/11544.

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This thesis is submitted as a PhD by Publication. Part A provides an overview of the thesis and summarises its context, research questions, methodological approach and key findings. Part B is a collection of nine, first-named academic papers. The thesis addresses two highly complex and controversial questions within energy policy, namely the nature and magnitude of ‘rebound effects’ from energy efficiency improvements and the extent and rate of depletion of global oil resources. Both of these questions are critically important to the development of a sustainable energy system and both are the subject of long-standing and highly polarised disputes. The thesis adapts, develops and applies a common methodology for reviewing the evidence on these questions, supplements this with original primary research and syntheses the results in a way that improves understanding and provides new insights. The thesis includes four papers examining different aspects of rebound effects and four examining different aspects of global oil depletion. Given the complexity of the chosen topics, the papers cover a wide range of questions, issues and approaches. Collectively the papers: clarify relevant definitional and conceptual issues; evaluate competing methodological and analytical techniques; appraise the methodological quality of empirical studies; identify levels of uncertainty and potential sources of bias; develop simple mathematical models; conduct statistical analyses of primary data; compare and evaluate the results of modelling studies; and synthesise results from multiple research areas to provide novel insights into poorly understood phenomena. A ninth paper evaluates the strengths and limitations of systematic review techniques when applied to complex, policy-relevant questions such as these. The thesis draws two main conclusions. First, rebound effects are frequently large and can substantially reduce the energy and carbon savings achieved from improved energy efficiency. Second, there is a significant risk that the global production of conventional oil will enter sustained decline before 2020. These conclusions run counter to conventional wisdom and have significant implications for public policy. The thesis also shows how the methodology of systematic reviews can be adapted and modified to make a valuable contribution to energy and climate policy research.
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Oyeyemi, Elijah Oyedola. « A global ionospheric F2 region peak electron density model using neural networks and extended geophysically relevant inputs ». Thesis, Rhodes University, 2006. http://hdl.handle.net/10962/d1005255.

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This thesis presents my research on the development of a neural network (NN) based global empirical model of the ionospheric F2 region peak electron density using extended geophysically relevant inputs. The main principle behind this approach has been to utilize parameters other than simple geographic co-ordinates, on which the F2 peak electron density is known to depend, and to exploit the technique of NNs, thereby establishing and modeling the non-linear dynamic processes (both in space and time)associated with the F2 region electron density on a global scale. Four different models have been developed in this work. These are the foF2 NN model, M(3000)F2 NN model, short-term forecasting foF2 NN, and a near-real time foF2 NN model. Data used in the training of the NNs were obtained from the worldwide ionosonde stations spanning the period 1964 to 1986 based on availability, which included all periods of calm and disturbed magnetic activity. Common input parameters used in the training of all 4 models are day number (day of the year, DN), Universal Time (UT), a 2 month running mean of the sunspot number (R2), a 2 day running mean of the 3-hour planetary magnetic index ap (A16), solar zenith angle (CHI), geographic latitude (q), magnetic dip angle (I), angle of magnetic declination (D), angle of meridian relative to subsolar point (M). For the short-term and near-real time foF2 models, additional input parameters related to recent past observations of foF2 itself were included in the training of the NNs. The results of the foF2 NN model and M(3000)F2 NN model presented in this work, which compare favourably with the IRI (International Reference Ionosphere) model successfully demonstrate the potential of NNs for spatial and temporal modeling of the ionospheric parameters foF2 and M(3000)F2 globally. The results obtained from the short-term foF2 NN model and nearreal time foF2 NN model reveal that, in addition to the temporal and spatial input variables, short-term forecasting of foF2 is much improved by including past observations of foF2 itself. Results obtained from the near-real time foF2 NN model also reveal that there exists a correlation between measured foF2 values at different locations across the globe. Again, comparisons of the foF2 NN model and M(3000)F2 NN model predictions with that of the IRI model predictions and observed values at some selected high latitude stations, suggest that the NN technique can successfully be employed to model the complex irregularities associated with the high latitude regions. Based on the results obtained in this research and the comparison made with the IRI model (URSI and CCIR coefficients), these results justify consideration of the NN technique for the prediction of global ionospheric parameters. I believe that, after consideration by the IRI community, these models will prove to be valuable to both the high frequency (HF) communication and worldwide ionospheric communities.
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Thorbjörnsson, Anders. « Carbon Capture and Storage : Energy penalties and their impact on global coal consumption ». Thesis, Uppsala universitet, Naturresurser och hållbar utveckling, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-235442.

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Coal has been used as a fuel for electricity generation for centuries. Inexpensive electricity from coal has been a key component in building large industrial economies such as USA and China. But in recent decades the negative aspects of coal, mainly carbon dioxide emissions, has changed the view on the fuel. Carbon capture and storage (CCS) is a solution to be able to continue using coal as an energy source, while limiting carbon emissions. One of the drawbacks of CCS is the energy need associated with the capture process, the energy penalty. This study aims to gather and analyze the energy penalties for the most developed types of carbon capture technologies. It also aims to model how the implementation of CCS would affect the future coal consumption. The results show that the range of energy penalties for a given type of technology is wide. Despite obtaining the energy penalty with the same simulation software, the energy penalty for post- combustion with MEA can range between 10.7% and 39.1%. Comparing mean energy penalties show that pre-combustion capture is the most efficient capture method (18.4% ± 4.4%) followed by oxy- fuel (21.6% ± 5.5%) and post-combustion (24.7% ± 7.9%). Further on, CCS implementation scenarios were compared and used as a starting point for coal consumption calculations. Three pathways were constructed in order to investigate how different distributions of technologies would affect the amount of needed coal. The pathways describe a implementation with only the most efficient technology, the least efficient and a middle option. The results suggest that a large scale implementation of CCS on coal power plant will have a significant impact on the global coal consumption. Under certain assumptions it takes up to 35 % more coal to deliver the same amount electricity with CCS in comparison without CCS. It is also found that certain implementation scenarios will struggle to produce the amount of coal that is needed to power the plants. A sensitivity analysis was performed to examine the impact of assumptions made on for instance plant efficiencies. The analysis shows that optimistic assumptions on development in plant efficiency and deploying only the best technology, uses less coal than a development without CCS and with current plant efficiencies.
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Atzberger, Craig Philip. « A Complex Systems Approach to Sustainability : Can Peak Oil Fuel the Sub-Saharan AIDS Epidemic ? » online version, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=case1156898969.

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Cordell, Dana. « The Story of Phosphorus : Sustainability implications of global phosphorus scarcity for food security ». Doctoral thesis, Linköping : Department of Water and Environmental Studies, [The Tema Institute], Linköping University, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-53430.

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Liu, Lollo. « Life Cycle Assessment of a Lithium-Ion Battery pack for Energy storage Systems : - the environmental impact of a grid-connected battery energy storage system ». Thesis, Uppsala University, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-428627.

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This thesis assessed the life-cycle environmental impact of a lithium-ion battery pack intended for energy storage applications. A model of the battery pack was made in the life-cycle assessment-tool, openLCA. The environmental impact assessment was conducted with the life-cycle impact assessment methods recommended in the Batteries Product Environmental Footprint Category Rules adopted by the European Commission (2016). The findings in this study showed that the most important parameter in the cradle-to-grave assessment was the use-stage losses, which can be reduced by using electricity grids with high sharesof renewable energy or by increase the round-trip efficiency of the battery system. However, for the cradle-to-gate assessment, five impact categories were found to be relevant. These categories were: climate change, acidification, fossil resource use, resource use (minerals and metals) and particulate matter. Furthermore, within these impact categories, four materials contributed to more than 65 % of all impact. These key materials were; nickel, aluminium, cobalt and graphite. Therefore, a recommendation to battery manufacturers is to prioritise sourcing these four key materials from sustainable suppliers to reduce the overall cradle-to-gate environmental impact. Lastly, by integrating recycling of the battery pack in the end-of-life-stage, it was possibleto achieve a net reduction of 9-20 % of the cradle-to-grave climate change, acidification and fossil resource use compared to not including recycling. Therefore, the development of efficient and large-scale recycling will likely play a major role in reducing the environmental impact from lithium-ion batteries in the future.
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Tupin, Simon. « Caractérisation de l'effet de la microstructure collagénique sur le comportement mécanique global des peaux reconstruites ». Ecole nationale d'ingénieurs (Saint-Etienne), 2015. http://www.theses.fr/2015ENISE032.

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L'objectif de cette thèse est l'étude multi-échelle des propriétés mécaniques et structurelles de la peau reconstruite par ingéniérie tissulaire. Un premier dispositif expérimental à faible chargement a permis l'étude des propriétés visco-élastiques macroscopiques des tissus (tests d'indentation et de relaxation). L'étude bi-axiale de la raideur des différentes couches en profondeur a été menée par un dispositif original basé sur la méthode mesure continue de la raideur. La combinaison de la microscopie confocale bi-photonique avec un essai de traction a permis une évaluation originale du coefficient de Poisson de ces tissus reconstruits ainsi que les contraintes et les forces de tension du réseau de fibres de collagène. Les résultats des études menées ont montré la pertinence des outils expérimentaux développés, pour étudier le mécanisme du vieillissement et l'effet de la micro-structure sur la réponse mécanique globale des tissus reconstruits
The aim of this thesis is the multi-scale study of the mechanical and structural properties of artificial skin. Firstly, an experimental device was designed to evaluate the mechanical properties at macroscopic scale (indentation and relaxation tests). Bi-axial study of the stiffness of different layers through depth was performed with an original device based on continuous stiffness measurements. Combination of bi-photonic confocal microscopy with a tensile test permitted the assessment of the Poisson coefficient of the reconstructed tissues, stresses and tensile forces of the collagen fibers network. Results of the studies revealed the suitability of the developped experimental tools to study aging mechanism and microstructure effects on the global mechanical behavior of artificial skin
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Müller, Jürgen [Verfasser]. « Modellierung der globalen Goldproduktion durch Anwendung der Hubbert'schen Peak-Oil Methodik / Jürgen Müller ». Norderstedt : Books on Demand, 2012. http://d-nb.info/1019465735/34.

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Nordangård, Jacob. « Med brödfödan som drivkraft : En studie om att byta olja mot biodrivmedel i ett globalt perspektiv ». Thesis, Linköping University, Department of Water and Environmental Studies, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-8116.

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Av två anledningar anses det som mycket viktigt att bryta beroendet av olja, naturgas och kol. Den första anledningen är de uppmärksammade klimatförändringarna. Förbränning av fossila bränslen anges idag som huvudorsak till växthuseffekten. Den andra mindre uppmärksammade orsaken är att oljan och naturgasen snart inte räcker till för att föda en allt energihungrigare värld. Utvinningen ser dessutom ut att ha nåt sin kulmen. Efter denna kommer en oundviklig produktionsnedgång. Med det stora beroendet som finns av oljan inom i stort sett alla sektorer är det ytterst viktigt att hitta andra alternativ. Speciellt gäller detta inom transportområdet. Förhoppningen står idag till ”gröna” drivmedel som etanol och biodiesel. IEA (International Energy Agency) har uppmanat de västerländska nationerna att satsa stort på biobränslen. I denna studie görs en analys av de förutsättningar som finns att bygga ut produktionen av denna i USA, Brasilien och Malaysia/Indonesien. Syftet har varit att ta reda på om det är möjligt att göra detta utan att inkräkta på andra näringar, inte skada miljön samt vara oberoende av fossil energi? Den bakomliggande teorin är att detta inte låter sig göras i den omfattning som krävs för att bibehålla de nuvarande samhällsstrukturerna. Detta visar sig också stämma med de uppgifter som står till buds. Endast en fraktion av det nuvarande drivmedelsbehovet går att försörja med biodrivmedel om det inte ska uppstå en allvarlig konkurrens om odlingsmarken eller orsaka stora ekologiska skador.

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Walsh, Tim. « Local Implications of Globally Restricted Mobility : A study of Queenstown’s vulnerability to peak oil and climate change ». Thesis, University of Canterbury. Geography, 2011. http://hdl.handle.net/10092/5654.

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This thesis employs a case study approach to investigate local implications of globally restricted mobility by examining Queenstown’s vulnerability to peak oil and climate change. Qualitative research methods are the principal means of inquiry. The research findings suggest that Queenstown is particularly vulnerable to peak oil and climate change at a broad scale because of its dependence on tourism and heavy reliance on air transport. However, Queenstown has fortuitously built up resilience to peak oil and climate change through tourism industry diversity, comparative advantage and an increasing proportion of short-haul visitors. A selection of key Queenstown tourism stakeholders interviewed as part of the research demonstrated some grasp of peak oil and climate change issues but lacked in-depth understanding. They generally considered the issues as being beyond their control although several suggested ways that Queenstown could strengthen resilience to peak oil and climate change. In terms of solutions, this research identifies three potential strategies. The first involves investing in a low carbon local transport system to increase destination level resilience to peak oil and climate change and enhance the uniqueness of the Queenstown brand. The second involves Queenstown promoters targeting the high-end niche tourism market in order to create a more resilient visitor profile. And the third involves the creation of new and expansion of existing industries not tied to tourism – preferably industries that are not excessively oil dependent and carbon intensive. But in order to successfully tackle the problem, it is imperative to first raise awareness. The research recommends implementing a framework that ensures an inclusive community-wide open dialogue process as the most effective way to achieve this.
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Livres sur le sujet "Global peak"

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Mander, Jerry. Manifesto on global economic transitions. Sous la direction de International Forum on Globalization, Institute for Policy Studies et Global Project on Economic Transitions. [San Francisco] : International Forum on Globalization, 2007.

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Mander, Jerry. Manifesto on global economic transitions. Sous la direction de International Forum on Globalization, Institute for Policy Studies et Global Project on Economic Transitions. [San Francisco] : International Forum on Globalization, 2007.

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A, McMahon T., dir. Global runoff : Continental comparisons of annual flows and peak discharges. Cremlingen-Destedt, Germany : Catena Verlag, 1992.

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Y, Iwatsubo E., Endo Elliot T et Geological Survey (U.S.), dir. Descriptions, photographs and positions for Global Positioning System (GPS) bench marks in the vicinity of Lassen Peak, California. Vancouver, Wa. (5400 MacArthur Blvd., Vancouver 98661) : U.S. Geological Survey, David A. Johnston Cascades Volcano Observatory, 1995.

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The crooked mile : Through peak oil, biofuels, hybrid cars, and global climate change to reach a brigher future. Lake Elmo, Minn : Demontreville Press, 2009.

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Plan C : Community survival stategies for peak oil and climate change. Gabriola Island, BC : New Society Publishers, 2008.

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Klinger, Lee Francis. Global patterns in community succession. Bronx, N.Y : New York Botanical Garden, 1990.

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Klinger, Lee Francis. Global patterns in community succession. Bronx, N.Y : New York Botanical Garden, 1990.

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International, Conference and Workshop on Tropical Peat Swamps (1999 George Town Pinang). Tropical peat swamps : Safe-guarding a global natural resource. [Minden], Pulau Pinang : Penerbit Universiti Sains Malaysia, 2004.

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Stracher, Glenn B., Ellina V. Sokol et Anupma Prakash. Coal and peat fires : A global perspective : Coal-geology and combustion. Amsterdam : Elsevier Science, 2010.

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Chapitres de livres sur le sujet "Global peak"

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Ronit, Karsten. « Peak associations ». Dans Global Business Associations, 21–54. Abingdon, Oxon ; New York, NY : Routledge, 2018. | Series : Routledge global institutions series : Routledge, 2018. http://dx.doi.org/10.4324/9781315660165-2.

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Burns, Edgar A. « Global Peak Society ». Dans The Palgrave Handbook of Global Social Change, 1–25. Cham : Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-87624-1_91-1.

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Ericsson, Magnus, et Patrik Söderholm. « Mineral Depletion and Peak Production ». Dans Global Resources, 222–31. London : Palgrave Macmillan UK, 2013. http://dx.doi.org/10.1057/9781137349149_12.

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Aleklett, Kjell. « The Global Oil and Gas Factory ». Dans Peeking at Peak Oil, 23–30. New York, NY : Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-3424-5_4.

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Criqui, Patrick. « Peak Oil : Myth or Impending Doom ? » Dans Global Resources, 187–205. London : Palgrave Macmillan UK, 2013. http://dx.doi.org/10.1057/9781137349149_10.

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Bergmann, Ariel. « Peak Gas : Technology and Environmental Consequences ». Dans Global Resources, 206–21. London : Palgrave Macmillan UK, 2013. http://dx.doi.org/10.1057/9781137349149_11.

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Moldenhauer, Jan. « The impact of peak oil on trade globalisation ». Dans Global Commodity Markets and Development Economics, 129–42. 1 Edition. | New York : Routledge, 2018. | Series : Routledge studies in development economics : Routledge, 2018. http://dx.doi.org/10.4324/9781315708683-7.

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Li, Sun, et Wang Yuncheng. « A Modified Cut-Peak Function Method for Global Optimization ». Dans Springer Proceedings in Mathematics & ; Statistics, 51–56. Cham : Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-08377-3_6.

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Balerna, Antonella, Enrico Bernieri, Adolfo Esposito, Massimo Pecci et Claudio Smiraglia. « Cs-137 Gamma Peak Detection in Snow Layers on Calderone Glacier ». Dans Advances in Global Change Research, 147–52. Dordrecht : Springer Netherlands, 2001. http://dx.doi.org/10.1007/0-306-48051-4_16.

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Höök, Mikael. « Coal coal and Peat peat : Global Resources peal global resources Peat Global Resources and Future Supply peal future supply Peat Future Supply ». Dans Encyclopedia of Sustainability Science and Technology, 2173–94. New York, NY : Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-0851-3_161.

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Actes de conférences sur le sujet "Global peak"

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Li, Yuling, Dianjun Ju, Yimeng Wang, Jian-er Wu et Zhidong Dong. « A global optimization method for multiple peak photovoltaic MPPT ». Dans IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society. IEEE, 2017. http://dx.doi.org/10.1109/iecon.2017.8216097.

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Ghazisaeedi, Ebrahim, et Changcheng Huang. « Energy-Efficient Virtual Link Reconfiguration for Off-Peak Time ». Dans GLOBECOM 2015 - 2015 IEEE Global Communications Conference. IEEE, 2015. http://dx.doi.org/10.1109/glocom.2015.7416992.

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Ghazisaeedi, Ebrahim, et Changcheng Huang. « Energy-Efficient Virtual Link Reconfiguration for Off-Peak Time ». Dans GLOBECOM 2015 - 2015 IEEE Global Communications Conference. IEEE, 2014. http://dx.doi.org/10.1109/glocom.2014.7416992.

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Sezginer, S., et H. Sari. « OFDM peak power reduction using metric-based amplitude predistortion ». Dans GLOBECOM '05. IEEE Global Telecommunications Conference, 2005. IEEE, 2005. http://dx.doi.org/10.1109/glocom.2005.1577898.

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Wang, Jun, Yinhua Rui, Zhizhen Huang et Weidong Wang. « Peak Detection Ultra-Wideband Transceiver Using Tunnel Backward Diode ». Dans 2008 Global Symposium on Millimeter Waves (GSMM 2008). IEEE, 2008. http://dx.doi.org/10.1109/gsmm.2008.4534557.

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Baik, Ihn-Jung, Sae-Young Chung et Junmo Kim. « Two-User Multi-Antenna Downlink Channels with Peak Power Constraints ». Dans GLOBECOM 2010 - 2010 IEEE Global Communications Conference. IEEE, 2010. http://dx.doi.org/10.1109/glocom.2010.5683441.

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Perotti, Alberto, et Sergio Benedetto. « Capacity Achieving Modulations for the Peak-Power Limited Gaussian Channel ». Dans GLOBECOM 2010 - 2010 IEEE Global Communications Conference. IEEE, 2010. http://dx.doi.org/10.1109/glocom.2010.5683683.

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Chiariotti, Federico, Beatriz Soret et Petar Popovski. « Latency and Peak Age of Information in Multipath Coded Communications ». Dans GLOBECOM 2022 - 2022 IEEE Global Communications Conference. IEEE, 2022. http://dx.doi.org/10.1109/globecom48099.2022.10001029.

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Li, Peng, Yu Zhu, Zongxin Wang et Naibo Wang. « Peak-to-average power ratio of SC-FDMA systems with localized subcarrier mapping ». Dans 2010 Global Mobile Congress (GMC). IEEE, 2010. http://dx.doi.org/10.1109/gmc.2010.5634563.

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Baliga, Jayant, Alex Grant, Graeme Woodward et Adriel Kind. « A Gradient Based Peak-to-Average Power Ratio Reduction Method ». Dans IEEE GLOBECOM 2007-2007 IEEE Global Telecommunications Conference. IEEE, 2007. http://dx.doi.org/10.1109/glocom.2007.723.

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Rapports d'organisations sur le sujet "Global peak"

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Nobari, Hadi, Rafael Oliveira, Alexandre Martins, João Paulo Brito, Jorge Pérez-Gómez et Filipe Manuel Clemente. Concurrent validity and reliability of global positioning systems for measuring sprint and peak speed performance : A systematic review. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, juin 2021. http://dx.doi.org/10.37766/inplasy2021.6.0007.

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Wendy, Disch. ESRI Nowcast October 2022. ESRI, octobre 2022. http://dx.doi.org/10.26504/ir1.

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Using the ESRI Nowcasting model currently employed to support the forecasting exercise in the Quarterly Economic Commentary, we will now update our forecast of modified domestic demand (MDD) on a monthly basis. Our nowcast estimates that MDD is expected to grow by 4.1 per cent in Q3 2022 on an annual basis, indicating some moderation from its growth of 10.2 per cent per annum in Q2 2022. On a monthly basis, MDD is estimated to be 4.0 per cent above its level from August 2021. Strong tax receipts, continued strength in the labour market and growth in industrial production are all contributing to growth. However, continued uncertainty in the global economy and elevated inflation rates have contributed to a decline in survey indicators, such as business and consumer sentiment, as well as slowdowns in retail sales. While growth of 4.1 per cent is strong on a historical basis, it is clear that MDD is moderating considerably from its peak of 14 per cent in February 2022.
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Herbert, Siân. Donor Support to Electoral Cycles. Institute of Development Studies (IDS), avril 2021. http://dx.doi.org/10.19088/k4d.2021.043.

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This rapid literature review explains the stages of an election cycle, and how donors provide support to electoral cycles. It draws mainly on policy guidance websites and papers due to the questions of this review and the level of analysis taken (global-level, donor-level). It focuses on publications from the last five years, and/or current/forthcoming donor strategies. The electoral cycle and its stages are well-established policy concepts for which there is widespread acceptance and use. Donor support to electoral cycles (through electoral assistance and electoral observation) is extremely widespread, and the dominant donors in this area are the multilateral organisations like the United Nations (UN) and the European Union (EU), and also the United States (US). While almost all bilateral donors also carry out some work in this area, “almost all major electoral support programmes are provided jointly with international partners” (DFID, 2014, p.5). Bilateral donors may provide broader support to democratic governance initiatives, which may not be framed as electoral assistance, but may contribute to the wider enabling environment. All of the donors reviewed in this query emphasise that their programmes are designed according to the local context and needs, and thus, beyond the big actors - EU, UN and US, there is little overarching information on what the donors do in this area. While there is a significant literature base in the broad area of electoral support, it tends to be focussed at the country, programme, or thematic, level, rather than at the global, or donor, level taken by this paper. There was a peak in global-level publications on this subject around 2006, the year the electoral cycle model was published by the European Commission, International Institute for Democracy and Electoral Assistance (International IDEA), and United Nations Development Programme (UNDP). This review concludes by providing examples of the electoral assistance work carried out by five donors (UN, EU, US, UK and Germany).
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Adeniran, Adedeji, Dozie Okoye, Mahounan P. Yedomiffi et Leonard Wantchekon. COVID-19 Learning Losses, Parental Investments, and Recovery : Evidence from Low-Cost Private Schools in Nigeria. Research on Improving Systems of Education (RISE), décembre 2022. http://dx.doi.org/10.35489/bsg-risewp_2022/120.

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About 2 billion children were affected by school closures globally at the peak of the COVID-19 pandemic. This has led to documented learning losses while children were out of school, and an especially precarious future academic path for pupils in developing countries where learning and continued enrolment remain important issues. There is an urgent need to understand the extent of these learning and enrolment losses, and possible policy options to get children back on track. This paper studies the extent of learning losses and recovery in Africa's most populous country, Nigeria, and provides some evidence that a full recovery is possible. Using data from a random sample of schools, we find significant learning losses of about .6 standard deviations in English and Math. However, a program designed to slow down the curriculum and cover what was missed during school closures led to a rebound within 2 months, and a recovery of all learning losses. Students who were a part of the program do not lag behind one year later and remain in school.
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