866 resultados para infrastructure investments
Resumo:
Micro Electro Mechanical Systems (MEMS) have already revolutionized several industries through miniaturization and cost effective manufacturing capabilities that were never possible before. However, commercially available MEMS products have only scratched the surface of the application areas where MEMS has potential. The complex and highly technical nature of MEMS research and development (R&D) combined with the lack of standards in areas such as design, fabrication and test methodologies, makes creating and supporting a MEMS R&D program a financial and technological challenge. A proper information technology (IT) infrastructure is the backbone of such research and is critical to its success. While the lack of standards and the general complexity in MEMS R&D makes it impossible to provide a “one size fits all” design, a systematic approach, combined with a good understanding of the MEMS R&D environment and the relevant computer-aided design tools, provides a way for the IT architect to develop an appropriate infrastructure.
Resumo:
In order to exploit the adaptability of a SOA infrastructure, it becomes necessary to provide platform mechanisms that support a mapping of the variability in the applications to the variability provided by the infrastructure. The approach focuses on the configuration of the needed infrastructure mechanisms including support for the derivation of the infrastructure variability model.
Resumo:
In this work, we analyzed by means of numerical and laboratory experiments the resilience of 40 Gb/s amplitude shift keying modulation formats to transmission impairments in standard single-mode fiber lines as well as to optical filtering introduced by the optical add/drop multiplexer cascade. Our study is a pre-requisite to assess the implementation of cost-effective 40 Gb/s modulation technology in next generation high bit-rate robust optical transport networks. © 2006 Optical Society of America.
Resumo:
This research develops a methodology and model formulation which suggests locations for rapid chargers to help assist infrastructure development and enable greater battery electric vehicle (BEV) usage. The model considers the likely travel patterns of BEVs and their subsequent charging demands across a large road network, where no prior candidate site information is required. Using a GIS-based methodology, polygons are constructed which represent the charging demand zones for particular routes across a real-world road network. The use of polygons allows the maximum number of charging combinations to be considered whilst limiting the input intensity needed for the model. Further polygons are added to represent deviation possibilities, meaning that placement of charge points away from the shortest path is possible, given a penalty function. A validation of the model is carried out by assessing the expected demand at current rapid charging locations and comparing to recorded empirical usage data. Results suggest that the developed model provides a good approximation to real world observations, and that for the provision of charging, location matters. The model is also implemented where no prior candidate site information is required. As such, locations are chosen based on the weighted overlay between several different routes where BEV journeys may be expected. In doing so many locations, or types of locations, could be compared against one another and then analysed in relation to siting practicalities, such as cost, land permission and infrastructure availability. Results show that efficient facility location, given numerous siting possibilities across a large road network can be achieved. Slight improvements to the standard greedy adding technique are made by adding combination weightings which aim to reward important long distance routes that require more than one charge to complete.
Resumo:
Purpose: Development of effective disaster risk reduction (DRR) strategies for communities at risk of being affected by natural disasters is considered essential, especially in the wake of devastating disaster events reported worldwide. As part of a wider research study investigating community perspectives on existing and potential strategies for enhancing resilience to natural disasters, community perspectives on infrastructure and structural protection requirements were investigated. The paper aims to discuss these issues. Design/methodology/approach: Patuakhali region in South-Western Bangladesh is a region significantly at risk of multiple natural hazards. In order to engage local communities and obtain their perspectives, focus group discussions were held with local community leaders and policy makers of at-risk communities in Patuakhali region, South-Western Bangladesh. Findings: Infrastructure and structural protection requirements highlighted included multi-purpose cyclone shelters, permanent embankments and improved transport infrastructure. Much of the discussions of focus group interviews were focused on cyclone shelters and embankments, suggesting their critical importance in reducing disaster risk and also dependence of coastal communities on those two measures. Originality/value: The research design adopted sought to answer the research questions raised and also to inform local policy makers on community perspectives. Local policy makers involved in DRR initiatives in the region were informed of community perspectives and requirements, thus contributing to community engagement in implementing DRR activities.
Resumo:
To benefit from the advantages that Cloud Computing brings to the IT industry, management policies must be implemented as a part of the operation of the Cloud. Among others, for example, the specification of policies can be used for the management of energy to reduce the cost of running the IT system or also for security policies while handling privacy issues of users. As cloud platforms are large, manual enforcement of policies is not scalable. Hence, autonomic approaches for management policies have recently received a considerable attention. These approaches allow specification of rules that are executed via rule-engines. The process of rules creation starts by the interpretation of the policies drafted by high-rank managers. Then, technical IT staff translate such policies to operational activities to implement them. Such process can start from a textual declarative description and after numerous steps terminates in a set of rules to be executed on a rule engine. To simplify the steps and to bridge the considerable gap between the declarative policies and executable rules, we propose a domain-specific language called CloudMPL. We also design a method of automated transformation of the rules captured in CloudMPL to the popular rule-engine Drools. As the policies are changed over time, code generation will reduce the time required for the implementation of the policies. In addition, using a declarative language for writing the specifications is expected to make the authoring of rules easier. We demonstrate the use of the CloudMPL language into a running example extracted from a management energy consumption case study.
Resumo:
A tanulmány megvizsgálja Magyarország integrációs kapcsolatainak alakulását a tőkebefektetések területén, feltárja annak pozitív és negatív hatásait. Az 1990-től 2010-ig tartó periódust három fő szakaszban elemzi, ezek a szakaszok: a rendszerváltás ideje, az EU csatlakozásig, valamint a csatlakozás óta eltelt évek. Kitér a tanulmány arra, hogy a hét évvel ezelőtti uniós csatlakozás hogyan hatott a tőkebefektetések alakulására, az integráció előtti kapcsolatok milyen mértékben maradtak fent, illetve változtak, mennyire vagyunk nyitottak a külföldi tőke előtt és a 2008-ban kezdődő gazdasági világválság milyen hatással volt ezekre a folyamatokra. / === / The purpose of the study is to examine the standing of Hungary's relations within the integration especially focusing on foreign direct investment, as well as to explore its positive and negative consequences. The period between 1990 and 2010 will be discussed in three main parts, namely as the time of the political transformation, the time preceding Hungary's accession to the European Union, and that of the years passed since then. Apart from the above mentioned it is also necessary to analyze the impact made by the integration which took place seven years ago on the state of foreign direct investment, and, to have a look at the relations formed prior to it, to see the extent to which they have altered or remained the same. We need to know how much our economy is open to foreign capital and we have to understand the measure Hungary has been affected by, since the crisis that began in 2008 has made itself plausible.
Resumo:
Műhelytanulmányunk a nemzeti versenyképesség vállaltokon túli dimenziójával kíván foglalkozni. A felgyorsult globalizáció korának világgazdasági környezetében, ahol a nemzetköziesedett nagyvállalatok rendelkeznek az erőforrások és a közvetlen beruházások jelentős része felett és az egyes regionális piacok folyamatai gyorsan áttevődnek más régiókra, a gazdaságpolitika és tágabb értelemben az állam mozgástere és feladata megváltozott. Ez az országokra nézve azt jelenti, hogy a stabil üzleti környezet megteremtésével és az emberi erőforrás illetve a technológiai infrastruktúra, mint háttérerőforrások fejlesztésével képesek hosszútávon megalapozni a gazdasági növekedést és felzárkózást, függetlenül attól, hogy az európai gazdasági integrációs környezetben valósítják-e meg mindezt. _____ The working paper examines the dimensions of competitiveness over the corporate level. The regional positions are changing quickly and the room for manoeuvre of the economic policy in national level is narrowed for attraction of business activities in the era of quickened globalisation. The countries compete for direct investments with the level of stability in business environment, the quality of human resource, the development of technological infrastructure. The development of background factors determines the economic growth.
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The research analyses the former and the current status of the small gas-motor power plant investments in the Hungarian energy sector. It discusses the development of project financing in the segment and the major changes and effects of new regulations and subsidy-policy implemented in 2010. The objective of this paper is to present the results of an empirical research of the so called GCHP projects, and to draw conclusion concerning how classic project financing conditions were present and changed during the last decade, and how regulation affected the current and future financial status of these projects.
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This thesis explains why multinational enterprises (MNEs) headquartered in Spain made significant investments in Latin America in the 1990s. Two independent variables are considered: structural reforms in Latin America, and liberalization in Spain. The first independent variable concerns the ways in which Latin American governments adopted a series of reforms that made their economies attractive to foreign investors. The second variable explains how the prospects of liberalization and foreign competition led Spanish firms to invest abroad in order to expand their businesses. The study will also show the competitive advantage of Spanish MNEs, vis-a-vis other foreign and local competitors in Latin America. This thesis takes an international political economy approach. The core of the thesis shows the development of Spanish direct investment in Latin America and the Caribbean in the 1990s. The theoretical perspectives on MNEs are provided by theory of the firm, industrial organizations theory and alliance theory. ^
Resumo:
Land use and transportation interaction has been a research topic for several decades. There have been efforts to identify impacts of transportation on land use from several different perspectives. One focus has been the role of transportation improvements in encouraging new land developments or relocation of activities due to improved accessibility. The impacts studied have included property values and increased development. Another focus has been on the changes in travel behavior due to better mobility and accessibility. Most studies to date have been conducted in metropolitan level, thus unable to account for interactions spatially and temporally at smaller geographic scales. ^ In this study, a framework for studying the temporal interactions between transportation and land use was proposed and applied to three selected corridor areas in Miami-Dade County, Florida. The framework consists of two parts: one is developing of temporal data and the other is applying time series analysis to this temporal data to identify their dynamic interactions. Temporal GIS databases were constructed and used to compile building permit data and transportation improvement projects. Two types of time series analysis approaches were utilized: univariate models and multivariate models. Time series analysis is designed to describe the dynamic consequences of time series by developing models and forecasting the future of the system based on historical trends. Model estimation results from the selected corridors were then compared. ^ It was found that the time series models predicted residential development better than commercial development. It was also found that results from three study corridors varied in terms of the magnitude of impacts, length of lags, significance of the variables, and the model structure. Long-run effect or cumulated impact of transportation improvement on land developments was also measured with time series techniques. The study offered evidence that congestion negatively impacted development and transportation investments encouraged land development. ^
Resumo:
In this thesis I sought to explain the origins of national security concerns over foreign investments in the United States from 1919 to 2008. I identified and examined 29 cases of national security concerns over foreign investments in the United States during that period, and argued that in order to understand the circumstances under which foreign investments in the United States are perceived to be threats to the U.S. security we must rely on a combination of democratic peace theory and the version of political realism known as power transition theory. Thus, I tested the argument that national security concerns over foreign investments in the United States from 1919 to 2008 resulted from: (1) perceptions of international power transition, (2) perceptions of ideological and institutional differences between the United States and the home country of the investor, (3) perceptions of the strategic importance of the sector where the investment is made, and (4) perceptions of participation or control of the foreign investor by the government of the country of origin. I found that all these hypotheses have some explanatory power.