892 resultados para power in the bucket


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This article argues that for all its efforts to implement soft power techniques, the Kremlin still fails to grasp the subtle, voluntaristic essence of soft power. This is reflected in a style of public interaction that has practical implications for how Russian soft power overtures are received by the audience. This is demonstrated through the findings of mixed-method empirical research from four Ukrainian regions. Thus, while surveys show that the worldview promoted by Russian public diplomacy resonates to some extent, insights from focus groups indicate that potential attraction is nevertheless limited by Russia's 'hard' and obtrusive approach to cultural influence.

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Recent poverty research focuses on the household responses to poverty through structure vs. agency perspectives. The human agency perspective, however, provides us important insights for looking beyond these simplistic tendencies which assume poor people as inherently passive, or envision them as helpless victims. In Turkey, politicians view poverty as a temporary and manageable problem which can be dealt with the provision of more charity or community support. Migrant networks, informal sector work and social assistance are considered to be important mechanisms that would provide resources for the poor. This paper argues that for some of the poor households none of these mechanisms provide sufficient resources. Instead, neighbourhood-based small-group solidarities and self-help networks enable those poor to develop collective capabilities and make ends meet. The paper also reveals that in Turkey, the implementation of social policies for poverty reduction could bring about relationships of patronage and in some cases contribute to existing inequalities.

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This paper seeks to assess the degree to which Poland exercises power and influence in the European Union. It employs Poland's policy towards its eastern neighbours as a case study, and, in doing so, contributes to two wider scholarly debates on how EU policy towards Russia, Ukraine and Belarus is made, and also the broader question of the evolving nature of the relationship between the European Union and its member states. In doing so, it employs a synthetic framework that brings together the approaches for studying the power and influence of a given member state that were developed by Wallace et al. (2005), Tallberg (2008) and Moravcsik (1991, 1993, 1998). It concludes that Polish influence has been low.

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2010. július 20-án megkezdte működését a magyar áramtőzsde, a HUPX. 2010. augusztus 16-án az első napokban tapasztalt 45-60 euró megawattórás ár helyett egyes órákban 2999 eurós árral szembesültek a piaci szereplők. A kiemelkedően magas árak megjelenése nem szokatlan az áramtőzsdéken a nemzetközi tapasztalatok szerint, sőt a kutatások kiemelten foglalkoznak az ún. ártüskék okainak felkutatásával, valamint megjelenésük kvantitatív és kvalitatív elemzésével. A cikkben a szerző bemutatja, milyen eredmények születtek a kiugró árak statisztikai vizsgálatai során a szakirodalomban, illetve azok következtetései hogyan állják meg a helyüket a magyar árak idősorát figyelembe véve. A szerző bemutat egy modellkeretet, amely a villamosenergia-árak viselkedését a hét órái szerint periodikusan váltakozó paraméterű eloszlásokkal írja le. A magyar áramtőzsde rövid története sajnos nem teszi lehetővé, hogy a hét minden órájára külön áreloszlást illeszthessünk. A szerző ezért a hét óráit két csoportba sorolja az ár eloszlásának jellege alapján: az ártüskék megjelenése szempontjából kockázatos és kevésbé kockázatos órákba. Ezután a HUPX-árak leírására felépít egy determinisztikus, kétállapotú rezsimváltó modellt, amellyel azonosítani lehet a kockázatos és kevésbé kockázatos órákat, valamint képet kaphatunk az extrém ármozgások jellegéről. / === / On 20th July, 2010 the Hungarian Power Exchange, the HUPX started its operation. On 16th August in certain hours the markets participants faced € 2,999 price instead of in the first days experienced 45-60 euros/mwh. According to the international experiences the appearance of the extremely high prices hasn’t been unusual in the power exchanges, the researches have focused exploring the causes of the so-called spikes and quantitative and qualitative analysis of those appearances. In this article the author describes what results were determined on statistical studies of outstanding prices in the literature, and how their conclusions stand up into account the time series of the Hungarian prices. The author presents a model framework which describes the behavior of electricity prices in the seven hours of periodically varying parameters. Unfortunately the brief history of the Hungarian Power Exchange does not allow to suit specific prices for each hour of week. Therefore the author classifies the hours of the week in the two groups based on the nature of price dispersion: according to the appearance of spikes to risky and less risky classes. Then for describing the HUPX prices the author builds a deterministic two-state, regime-changing model, which can be identified the risky and less risky hours, and to get a picture of the nature of extreme price movements.

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A bipoláris világrendszer megszűnése a XX. század utolsó évtizedében új helyzetet teremtett a globális politikai és gazdasági viszonyokban, ugyanakkor nem mellékesen a hadiiparban is. A szerző, szem előtt tartva a hatalmi viszonyok jövőbeli elkerülhetetlen átrendeződését, elsősorban a katonai szektor előtt álló, a XXI. századra előrevetíthető kihívásokat, lehetőségeket, a szektor jövőbeli pályáját tekinti át. A hadiiparral kapcsolatban indokolt a hidegháború utáni világ fegyverkezési helyzetének, fegyveres erőinek számbavétele csakúgy, mint a releváns elméleti keretek ismertetése, továbbá a fontos globális szereplők biztonságpolitikájának vizsgálata. A katonai szektor jelenének és jövőjének alapos elemzése nem nélkülözheti a katonai kiadások jelenlegi – a világgazdasági válság által befolyásolt – és a következő évtizedekben várható alakulásának vizsgálatát. Végül, de nem utolsó sorban a szerző áttekinti a XXI. századi haditechnikai forradalom már most látható és a jövőben valószínűsíthető vívmányait, a fontosabb haditechnikai tendenciákat, illetve elemzi a nemzetközi fegyverpiac helyzetét. __________________ The end of the Cold War led to a new situation in global political and economic affairs, as well as in the military sector. The author, taking into consideration the inevitable future power shifts, provides an overview of the challenges, possibilities and future paths of the military sector. Relevant issues include assessing the arms and armed forces of the post-Cold War era, as well as the analysis of theoretical frameworks and the security policies of the important global actors. Understanding the present and the future of the military sector is not possible without the thorough analysis of military expenditures and their likely future trends. The author also overviews the outcomes of the 21st century revolution in military technology and analyses the global arms market.

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The paper intends to give an insight into the relations of the economic and political systems of the Central Asian republics using the theoretical framework of the "rentier economy" and "rentier state" approach. The main findings of the paper are that two (Kazakhstan and Turkmenistan) of the five states examined are commodity export dependent “full-scale” rentier states. The two political systems are of a stable neo-patrimonial regime character, while the Kyrgyz Republic and Tajikistan, poor in natural resources but dependent on external rents, may be described as "semi-rentier" states or "rentier economies". They are politically more instable, but have an altogether authoritarian, oligarchical “clan-based” character. Uzbekistan with its closed economy, showing tendencies of economic autarchy, is also a potentially politically unstable clan-based regime. Thus, in the Central Asian context, the rentier state or rentier economy character affects the political stability of the actual regimes rather than having a direct impact on whether power is exercised in an autocratic or democratic way.

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This study explores how great powers not allied with the United States formulate their grand strategies in a unipolar international system. Specifically, it analyzes the strategies China and Russia have developed to deal with U.S. hegemony by examining how Moscow and Beijing have responded to American intervention in Central Asia. The study argues that China and Russia have adopted a soft balancing strategy of to indirectly balance the United States at the regional level. This strategy uses normative capabilities such as soft power, alternative institutions and regionalization to offset the overwhelming material hardware of the hegemon. The theoretical and methodological approach of this dissertation is neoclassical realism. Chinese and Russian balancing efforts against the United States are based on their domestic dynamics as well as systemic constraints. Neoclassical realism provides a bridge between the internal characteristics of states and the environment which those states are situated. Because China and Russia do not have the hardware (military or economic power) to directly challenge the United States, they must resort to their software (soft power and norms) to indirectly counter American preferences and set the agenda to obtain their own interests. Neoclassical realism maintains that soft power is an extension of hard power and a reflection of the internal makeup of states. The dissertation uses the heuristic case study method to demonstrate the efficacy of soft balancing. Such case studies help to facilitate theory construction and are not necessarily the demonstrable final say on how states behave under given contexts. Nevertheless, it finds that China and Russia have increased their soft power to counterbalance the United States in certain regions of the world, Central Asia in particular. The conclusion explains how soft balancing can be integrated into the overall balance-of-power framework to explain Chinese and Russian responses to U.S. hegemony. It also suggests that an analysis of norms and soft power should be integrated into the study of grand strategy, including both foreign policy and military doctrine.

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The purpose of this hermeneutic phenomenological study was to explore students’ experiences with the power of their instructors in a higher education classroom. This study provides a deeper understanding of instructor power from student perspectives to inform teaching practices in the higher education classroom.

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The future power grid will effectively utilize renewable energy resources and distributed generation to respond to energy demand while incorporating information technology and communication infrastructure for their optimum operation. This dissertation contributes to the development of real-time techniques, for wide-area monitoring and secure real-time control and operation of hybrid power systems. ^ To handle the increased level of real-time data exchange, this dissertation develops a supervisory control and data acquisition (SCADA) system that is equipped with a state estimation scheme from the real-time data. This system is verified on a specially developed laboratory-based test bed facility, as a hardware and software platform, to emulate the actual scenarios of a real hybrid power system with the highest level of similarities and capabilities to practical utility systems. It includes phasor measurements at hundreds of measurement points on the system. These measurements were obtained from especially developed laboratory based Phasor Measurement Unit (PMU) that is utilized in addition to existing commercially based PMU’s. The developed PMU was used in conjunction with the interconnected system along with the commercial PMU’s. The tested studies included a new technique for detecting the partially islanded micro grids in addition to several real-time techniques for synchronization and parameter identifications of hybrid systems. ^ Moreover, due to numerous integration of renewable energy resources through DC microgrids, this dissertation performs several practical cases for improvement of interoperability of such systems. Moreover, increased number of small and dispersed generating stations and their need to connect fast and properly into the AC grids, urged this work to explore the challenges that arise in synchronization of generators to the grid and through introduction of a Dynamic Brake system to improve the process of connecting distributed generators to the power grid.^ Real time operation and control requires data communication security. A research effort in this dissertation was developed based on Trusted Sensing Base (TSB) process for data communication security. The innovative TSB approach improves the security aspect of the power grid as a cyber-physical system. It is based on available GPS synchronization technology and provides protection against confidentiality attacks in critical power system infrastructures. ^

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We define a sample of 62 galaxies in the Chandra Deep Field-North whose Spitzer IRAC SEDs exhibit the characteristic power-law emission expected of luminous AGNs. We study the multiwavelength properties of this sample and compare the AGNs selected in this way to those selected via other Spitzer color-color criteria. Only 55% of the power-law galaxies are detected in the X-ray catalog at exposures of >0.5 Ms, although a search for faint emission results in the detection of 85% of the power-law galaxies at the ≥2.5 σ detection level. Most of the remaining galaxies are likely to host AGNs that are heavily obscured in the X-ray. Because the power-law selection requires the AGNs to be energetically dominant in the near- and mid-infrared, the power-law galaxies comprise a significant fraction of the Spitzer-detected AGN population at high luminosities and redshifts. The high 24 μm detection fraction also points to a luminous population. The power-law galaxies comprise a subset of color-selected AGN candidates. A comparison with various mid-infrared color selection criteria demonstrates that while the color-selected samples contain a larger fraction of the X-ray-luminous AGNs, there is evidence that these selection techniques also suffer from a higher degree of contamination by star-forming galaxies in the deepest exposures. Considering only those power-law galaxies detected in the X-ray catalog, we derive an obscured fraction of 68% (2 : 1). Including all of the power-law galaxies suggests an obscured fraction of <81% (4 : 1).

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13/01/15 Funded by •Faculty of Management at Radboud University Nijmegen

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13/01/15 Funded by •Faculty of Management at Radboud University Nijmegen

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The paper presents an investigation to the thermodynamics of the air flow in the air chamber for the oscillating water column wave energy converters, in which the oscillating water surface in the water column pressurizes or de-pressurises the air in the chamber. To study the thermodynamics and the compressibility of the air in the chamber, a method is developed in this research: the power take-off is replaced with an accepted semi-empirical relationship between the air flow rate and the oscillating water column chamber pressure, and the thermodynamic process is simplified as an isentropic process. This facilitates the use of a direct expression for the work done on the power take-off by the flowing air and the generation of a single differential equation that defines the thermodynamic process occurring inside the air chamber. Solving the differential equation, the chamber pressure can be obtained if the interior water surface motion is known or the chamber volume (thus the interior water surface motion) if the chamber pressure is known. As a result, the effects of the air compressibility can be studied. Examples given in the paper have shown the compressibility, and its effects on the power losses for large oscillating water column devices.

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Over the course of the later Middle Ages nearly half the landmass of the British Isles fell under the control of a handful of Gaelic dynasties in Ireland and Scotland. The impact of this profound geopolitical recasting of much of the Atlantic Archipelago has however, received very little scholarly attention. Instead, historians have tended to view events within this expanding Gaelic world, or Gàidhealtachd, as peripheral to the political development of the British Isles and the course of Anglo-Scottish relations during the later Medieval period. Drawing upon a comprehensive range of sources from Ireland, Scotland, and England, as well as significant archival research, this thesis challenges the concept of the so-called 'Celtic fringe' and illustrates how developments within the Gàidhealtachd impacted upon the course of 'British' politics during the period c.1350-1513. The thesis centres on an examination of how two competing Gaelic alliance systems came to dominate much of the Gàidhealtachd from the late fourteenth century through to the early 1500s. The first of these alliance blocs was controlled chiefly by the O'Neills of Tyrone, the O'Briens of Thomond, and MacDonalds of the Hebrides; in the other network the O'Donnells of Tyrconnell, the Burkes of Mayo and the Campbells of Argyll held sway. By tracing the interconnectivity of the lordships in each respective network, the thesis investigates how these alliance systems became a durable force not only within the Gàidhealtachd but also on the broader 'British' stage. The thesis is structured in a manner that makes the intricate, lineage-based world of the Gàidhealtachd more accessible. Each chapter shifts between the various regions of the Gaelic world and examines how developments in one region impacted upon corresponding territory. Ultimately, this provides historians with a new model for exploring what has previously been a majorly neglected area of Irish and British history.