14 research outputs found
Design of a remote instrumentation system and a dedicated circuit for the configuration and quality analysis of rf power amplifiers
No full textThe author was working at the Tryo Communications in the i+d department, after some
analysis of the fabrication procedures a lag of automation in a specific configuration
process for powers amplifiers was detected.
After the specifications and requirements compilation, a deeper analysis was done in
order to design a system that would involve measure instruments, a server, an own PCB
and power amplifiers. That system should be able to do all the configuration process by
its own.
This initiative is a hardware and software solution that truly has 0 cost in comparison with
the benefits provided with the integration of that technologies to the enterprise production
chain. Most of the repetitive processes are becoming automated by machines to improve
efficiency and serial manufacturing.
This is a concept that could be applied in many terms but this project is focused on the
automation using electronics applied to RF and it also contains a software integration.El autor trabajaba en Tryo Communications en el departamento de i + d, tras un análisis
de los procedimientos de fabricación se detectó una falta de automatización en un
proceso de configuración específico para amplificadores de potencia.
Después de la compilación de especificaciones y requerimientos, se realizó un análisis
más profundo para diseñar un sistema que involucraría instrumentos de medida, un
servidor, una propia PCB y amplificadores de potencia. Ese sistema debe ser capaz de
hacer todo el proceso de configuración por su cuenta.
Esta iniciativa es una solución de hardware y software que realmente tiene 0 costo en
comparación con los beneficios proporcionados con la integración de esas tecnologías a
la cadena de producción de la empresa. La mayoría de los procesos repetitivos están
siendo automatizados por las máquinas para mejorar la eficiencia y la fabricación en
serie.
Este es un concepto que se podría aplicar en muchos términos, pero este proyecto se
centra en la automatización utilizando la electrónica aplicada a RF y también contiene
una integración de software
Design of a remote instrumentation system and a dedicated circuit for the configuration and quality analysis of rf power amplifiers
No full textThe author was working at the Tryo Communications in the i+d department, after some
analysis of the fabrication procedures a lag of automation in a specific configuration
process for powers amplifiers was detected.
After the specifications and requirements compilation, a deeper analysis was done in
order to design a system that would involve measure instruments, a server, an own PCB
and power amplifiers. That system should be able to do all the configuration process by
its own.
This initiative is a hardware and software solution that truly has 0 cost in comparison with
the benefits provided with the integration of that technologies to the enterprise production
chain. Most of the repetitive processes are becoming automated by machines to improve
efficiency and serial manufacturing.
This is a concept that could be applied in many terms but this project is focused on the
automation using electronics applied to RF and it also contains a software integration.El autor trabajaba en Tryo Communications en el departamento de i + d, tras un análisis
de los procedimientos de fabricación se detectó una falta de automatización en un
proceso de configuración específico para amplificadores de potencia.
Después de la compilación de especificaciones y requerimientos, se realizó un análisis
más profundo para diseñar un sistema que involucraría instrumentos de medida, un
servidor, una propia PCB y amplificadores de potencia. Ese sistema debe ser capaz de
hacer todo el proceso de configuración por su cuenta.
Esta iniciativa es una solución de hardware y software que realmente tiene 0 costo en
comparación con los beneficios proporcionados con la integración de esas tecnologías a
la cadena de producción de la empresa. La mayoría de los procesos repetitivos están
siendo automatizados por las máquinas para mejorar la eficiencia y la fabricación en
serie.
Este es un concepto que se podría aplicar en muchos términos, pero este proyecto se
centra en la automatización utilizando la electrónica aplicada a RF y también contiene
una integración de software
Design of a remote instrumentation system and a dedicated circuit for the configuration and quality analysis of rf power amplifiers
No full textThe author was working at the Tryo Communications in the i+d department, after some
analysis of the fabrication procedures a lag of automation in a specific configuration
process for powers amplifiers was detected.
After the specifications and requirements compilation, a deeper analysis was done in
order to design a system that would involve measure instruments, a server, an own PCB
and power amplifiers. That system should be able to do all the configuration process by
its own.
This initiative is a hardware and software solution that truly has 0 cost in comparison with
the benefits provided with the integration of that technologies to the enterprise production
chain. Most of the repetitive processes are becoming automated by machines to improve
efficiency and serial manufacturing.
This is a concept that could be applied in many terms but this project is focused on the
automation using electronics applied to RF and it also contains a software integration.El autor trabajaba en Tryo Communications en el departamento de i + d, tras un análisis
de los procedimientos de fabricación se detectó una falta de automatización en un
proceso de configuración específico para amplificadores de potencia.
Después de la compilación de especificaciones y requerimientos, se realizó un análisis
más profundo para diseñar un sistema que involucraría instrumentos de medida, un
servidor, una propia PCB y amplificadores de potencia. Ese sistema debe ser capaz de
hacer todo el proceso de configuración por su cuenta.
Esta iniciativa es una solución de hardware y software que realmente tiene 0 costo en
comparación con los beneficios proporcionados con la integración de esas tecnologías a
la cadena de producción de la empresa. La mayoría de los procesos repetitivos están
siendo automatizados por las máquinas para mejorar la eficiencia y la fabricación en
serie.
Este es un concepto que se podría aplicar en muchos términos, pero este proyecto se
centra en la automatización utilizando la electrónica aplicada a RF y también contiene
una integración de software
Epigrafía maya: Tabasco
No full textLa información de esta miniguía está basada en los trabajos de M. Coe, N. Grove, S. Guenter, S. Martín, P. Mathews, Linda Schele, D. Stuart y M. U. Zender.Cuatro de las grandes culturas desarrolladas en Mesoamérica poseían un sistema propio de escritura: zapoteca, maya, mixteca y náhuatl. La escritura maya fue el sistema más complejo y el que más correspondencia tuvo con la lengua hablada. Parece haber surgido alrededor del 100 o 200 d.C., y según la mitología fue el dios ltzamná quien la inventó. Sus últimas expresiones se sitúan alrededor de 1696. Los mayas utilizaron diferentes soportes para plasmar la escritura y su historia escrita, como códices de papel vasijas de barro, textiles, pieles, estelas y altares de piedra, dinteles y cajas de madera, pendientes de hueso y hasta finas puntas de cola de mantarraya, entre otros.</p
Does the Current Account Matter?
No full textThe purpose of this paper is to investigate in detail the behavior of the current account in emerging economies, and in particular its role if any in financial crises. Models of current account behavior are reviewed, and a dynamic model of current account sustainability is developed. The empirical analysis is based on a massive data set that covers over 120 countries during more than 25 years. Important controversies related to the current account including the extent to which current account deficits help predict currency crises are also analyzed. Throughout the paper I am interested in analyzing whether there is evidence supporting the idea that there are costs involved in running 'very large' deficits. Moreover, I investigate the nature of these potential costs, including whether they are particularly high in the presence of other type of imbalances.
Promoting growth in Sri Lanka : lessons from East Asia
No full textSri Lanka's weak economic performance, although compounded by the civil war and budgetary imbalance, largely reflects the following: 1) a stop-and-go pattern of policy reform, because of political constraints - even though the results of reform were generally positive; 2) weak economic management, resulting in high inflation and a high fiscal and balance of payments deficit; 3) poor management of public spending; 4) mixed performance in exchange-rate management, with periods of substantial overvaluation; 5) financial policies that (despite recent improvements) hamper efficient financial intermediation; 6) prolonged trade protection, followed by selective trade liberalization; 7) continued distortion in agricultural policies; 8) inflexible labor markets and, despite Sri Lanka's outstanding track record on human development, problems with the quality of the labor force. To address a substantially unfinished policy agenda, Sri Lanka needs to intensify efforts to peacefully resolve civil conflict. There is also a need to squarely address its macroeconomic imbalances, involving a sharp reduction in the fiscal deficit, a cutback on public spending and redefinition of spending priorities, improvement of cost recovery for public services, and continuing to improve the management of the exchange rate. In trade policy, eliminate most quanitative restrictions, further reduce tariff protection, simplify the tariff structure, and, possibly, reform customs (to reduce leakage and abuse). Rationalize employment, exit, and bankruptcy regulations and procedures. The authors recommend improvement in communications between government and the private sector. It is necessary for the financial sector to become more competitive by legislating banking reform, giving state-owned banks more autonomy and putting private commercial banks on an equal footing with the two state banks, with the ultimate goal of privatizing the state banks, and also strengthen the supervision of banking. Also in the financial sector the authors have identified a need for privatization in insurance and pension funds to strengthen the capital market. Several aspects of the agricultural sector need to be revamped. Primarily, privatization of the estate plantations, perhaps through long-term management contracts and the gradual sale of share in assets; reduced trade protection; implementation of land reform; strengthen agricultural support; and possibly support rural financing institutions. Lastly, the authors suggest an end to government controls on hiring, firing, and wage setting as well as rationalization in civil service employment decisions.Labor Policies,Economic Theory&Research,Environmental Economics&Policies,Decentralization,Banks&Banking Reform,Banks&Banking Reform,Economic Theory&Research,Environmental Economics&Policies,Achieving Shared Growth,Inequality
Heterogeneity Happens: How Rights Matter in Economic Development
No full textThe paper examines how much governance matters for long run economic development in poor countries. Answering this question confronts four methodological challenges. First, since growth equations are likely to be underspecified, unobserved effects are likely to render standard estimators biased and inconsistent. Second, measurement error, time-varying unobserved effects, and possible feedback from growth into governance will violate the exogeneity assumptions of many estimators. Bias and inconsistency is again the consequence. Third, use of cross-country evidence opens the possibility that the interaction between governance and growth shows considerable country-specificity. In the presence of heterogeneity, estimation under a specification that imposes homogeneity on the governance – growth link, will again result in bias and inconsistency. Finally, an assumption of linearity in the growthâ€governance relationship across large ranges of per capita income and differences in institutional structure is at least questionable. The paper addresses these problems by contrasting results obtained under pooled OLS, fixed effects, GMM, country specific time series and PMG estimators. Results confirm that all four methodological concerns are valid. Taking account of the problems renders estimates of the impact of governance more robust, and serves to increase its impact. Our best estimate of the impact of improving rights on the level of real per capita output is that this differs between countries with good, mid-range and poor rights. The implied elasticities of a benevolent impact on the level of real per capita output of improving rights ranging from 0.28 to 0.22 for countries with the worst rights, and 0.07-0.02 for countries with the best rights. Countries with midrange rights have a perverse association between improving rights and output, though the estimated elasticity range is relatively weak over the 0.03-0.02 range. Improving rights have an indirect impact on output as well a direct one. Improving rights serve to increase the productivity of investment, with the elasticity of output with respect to investment rising from 0.29 to 0.45 between countries with the worst rights, and those with midâ€range rights (thus improving its productivity by a factor of 1.6). The impact of economic policy on output similarly improves under improved governance – though more weakly than the productivity of investment – with both the openness and the anti-inflationary policy stance of the economy proving to be significant. Investment in human capital by contrast has an impact on output that is invariant to the level of rights. The estimated elasticity of education on output reaches 0.44 at an average of eleven years of schooling, and unitary elasticity at an average of 25 years of schooling. These results find a significant echo, but also some nuance in equations specified in terms of economic growth. Substantively, our estimation results confirm an increasing productivity of investment for growth purposes under rising governance, and they are consistent with rising levels of investment under improving governance. Further evidence in support of the impact of good governance comes from the fact that physical capital, human capital, openness of the economy, foreign direct investment and anti-inflationary economic policy all further spur growth – often dramatically so. By contrast, for midâ€range rights countries only investment in physical capital raises economic growth (though strongly so), while for poor rights countries empirical results prove mixed at best. The implications are twofold. Under good governance policy makers have the gamut of standard policy handles at their disposal in promoting growth. Their task is correspondingly easier. And on a methodological note, the finding of strong heterogeneity across countries serves to offer an explanation of why the literature may have struggled to isolate particularly robust results under cross sectional and insufficiently sophisticated panel estimators.Governance, economic growth, rights
Macroeconomic policy coordination during the various phases of economic and monetary integration in Europe
No full textEconomic Policy;International Economics;EEC;EMS
The unintended consequences of the debt ... will increased government expenditure hurt the economy?
No full textIn 2008, governments in many countries embarked on large fiscal expenditure programmes, with the intention to support the economy and prevent a more serious recession. In this study, the overall impact of a substantial increase in fiscal expenditure is considered by providing a novel analysis of the most relevant recent experience in similar circumstances, namely that of Japan in the 1990s. Then a weak economy with risk-averse banks seemed to require some of the largest peacetime fiscal stimulation programmes on record, albeit with disappointing results. The explanations provided by the literature and their unsatisfactory empirical record are reviewed. An alternative explanation, derived from early Keynesian models on the ineffectiveness of fiscal policy is presented in the form of a modified Fisher-equation, which incorporates the recent findings in the credit view literature. The model postulates complete quantity crowding out. It is subjected to empirical tests, which were supportive. Thus evidence is found that fiscal policy, if not supported by suitable monetary policy, is likely to crowd out private sector demand, even in an environment of falling or near-zero interest rates. As a policy conclusion it is pointed out that by changing the funding strategy, complete crowding out can be avoided and a positive net effect produced. The proposed framework creates common ground between proponents of Keynesian views (as held, among others, by Blinder and Solow), monetarist views (as held in particular by Milton Friedman) and those of leading contemporary macroeconomists (such as Mankiw)
Um Estudo comparado das relações ambientais de mulheres da floresta do Vale do Guaporé (Brasil) e do Mayombe (Angola) - 1980 - 2010
No full textTese (doutorado) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas. Programa de Pós-Graduação em HistóriaEste estudo objetiva discutir como as mulheres negras da floresta do vale do Guaporé/Rondônia, na Amazônia brasileira, e do Mayombe, na Província de Cabinda, Angola, se relacionam com o meio ambiente constituindo modos de vidas específicos e formas de poder a partir de seus conhecimentos ancestrais. Tanto os modos de vida como tudo mais que decorre entende-se serem constituídos historicamente nas suas culturas. O período de estudo abrange de 1980 a 2010. A análise foi centrada nos dois lados do oceano Atlântico considerando perspectivas da história comparada, estabelecendo conexões entre contextos em ambientes de florestas tropicais, procurando perceber as similitudes, as diferenças, as permanências e as mudanças nas práticas socioculturais destes povos, considerando que as populações negras que habitam o vale do Guaporé sejam provenientes de Angola ou de outros lugares da África Central. Procura-se discutir as relações de gênero presentes nas práticas culturais de mulheres e homens que habitam as florestas tropicais na utilização dos recursos naturais. O trabalho de campo foi realizado nas comunidades quilombolas do vale do Guaporé e nas aldeias do Mayombe, ocasião em que se participou de suas práticas cotidianas e fizeram-se várias entrevistas com mulheres e homens, pois este estudo privilegia as fontes orais, construindo um texto dialógico com as falas e interpretações das pessoas entrevistadas, a interpretação da autora e de vários estudiosos que trabalham esta temática. O principal traço comum entre a população do Guaporé e do Mayombe é o extrativismo, aliado à agricultura de subsistência. No Guaporé as mulheres são consideradas como "ajudantes" dos homens e no Mayombe elas são as principais responsáveis pelo desenvolvimento desta atividade agrícola e pela alimentação da família.This study intends to discuss how black women from Vale do Guapore Forest, Rondônia, in Brazilian Amazon, and women from Mayombe, in Cabinda Province, Angola, relate to the environment, establishing specific ways of life and forms of power through their ancestral knowledge. The ways of lives as well as everything else which follows it are understood to be constituted historically in their cultures. The period of study extends from 1980 to 2010. The analysis was centred on both sides of the Atlantic Ocean considering comparative history perspectives, establishing connections amongst rainforest environment contexts, aiming to perceive similarities, differences, permanencies and changes in these people´s sociocultural practices, considering that black population who inhabit Vale do Guapore are from Angola or from other sites in Central Africa. This paper aims to discuss gender relations present in women´s and men´s cultural practices who inhabit rainforests for the use of natural resources. Field research took place in quilombola communities in vale do Guapore and in Mayombe villages, occasion in which there was participation in their daily practices and several interviews were made with women and men, because this study privileges oral sources, constructing a text based on dialogues containing reports and interpretations from the interviewed people, the interpretation from the author and from researches who study this subject. The main common feature between Guapore population and that of Mayombe is extractive activities associated with subsistence farming. In Guapore women are considered as men´s "help" and in Mayombe they are the main responsible for the development of farming activity and for providing the family
