Preliminary results toward injection locking of an incoherent laser array

The preliminary results of phase locking an incoherent laser array to a master source in an attempt to achieve coherent operation are presented. The techniques necessary to demonstrate phase locking are described along with some topics for future consideration. As expected, the results obtained suggest that injection locking of an array, where the spacing between adjacent longitudinal modes of its elements is significantly larger than the locking bandwidth, may not be feasible

Radiated emissions and experimental precautions of equipment with cables in GTEM cells

Any electric or electronic equipment sold within the European Union has to comply with the EC Directive on Electromagnetic Compatibility (EMC). To achieve compliance, the equipment must be tested for radiated/conducted emissions and immunity. A wide range of national and international testing methods and standards are in force such as the IEC 61000-40-20. However, standards in general lack of describing testing methods for equipment with cables. Since most devices and systems contain leads and cables; the current standards cannot be directly employed. In an effort to approach this crucial matter, we present the outcomes of measurements conducted on an EUT (metal box) with different cable bundle configurations, in conjunction with both, the correlation algorithm given in the standards and the repeatability concerns between different GTEM cell

Information in Cournot: Signaling with Incomplete Control

We embed signaling in the classical Cournot model in which several firms sell a homogeneous good. The quality is known to all the firms, but only to some buyers. The quantity-setting firms can manipulate the price to signal quality. Because there is only one price in a market for a homogeneous good, each firm incompletely controls the price-signal through the quantity decision. We characterize the unique signaling Cournot equilibrium in which the price signals quality to the uninformed buyers. We then compare the signaling Cournot equilibrium with the full-information Cournot equilibrium. Signaling is shown to increase the equilibrium price. Moreover, under certain conditions regarding the composition of buyers, the number of firms, and the distribution of costs across firms, the effects of signalling and market externality cancel each other. In other words, the profits under signaling Cournot equal the profits of a cartel in a full-information environment.Cournot, Homogeneous good, Learning, Quality, Signaling.

Fondos inmobiliarios y riesgo urbano./ Real estate funds and urban risk

La relación entre fondos de inversión inmobiliaria y riesgo urbano es compleja: el riesgo del sector inmobiliario-financiero incrementa la vulnerabilidad urbana, y la sustentabilidad de las ciudades es más dependiente del riesgo de ese sector que éste del riesgo urbano y del riesgo país. La suerte de las economías nacionales está muy asociada a la suerte de las ciudades y la del riesgo supranacional global a la del riesgo subnacional urbano. El riesgo financiero-inmobiliario se ha multiplicado por la financiarización: los fondos inmobiliarios transnacionales y la gran movilidad geográfica de capitales, por su alta y selectiva concentración metropolitana, inducen la inflación de burbujas y las crisis, afectando la sustentabilidad urbana, nacional e incluso global. La financiarización no sólo es inmobiliaria: se trata de una amplia “financiarización urbana” que incluye –como en la crisis subprime- la vivienda social, y que agudiza las disparidades e inequidades territoriales./ The association between real estate funds and urban risk is complex; financial uncertainty of real estate development increases urban vulnerability and negatively affects the sustainability of cities. However, the relation is not reciprocal, since the impact that urban risk, and the reliability of national economies have on real estate development is relatively low. The success of national economies depends on the specific conditions of a country’s cities, and the success of global supranational risk is closer to urban subnational risk. The financial risk of real estate development has increased because of financialisation. As the metropolitan concentration is high and selective, transnational real estate funds, along with the geographical mobility of capital, propel the growth of real estate bubbles and crisis, making a big impact on sustainability at many levels –urban, national and even global-. Financialisation is not just a real estate development issue; rather it is an ‘urban financialisation’ (like the subprime crisis), which includes social housing, intensifying territorial disparities

Territorios del capital bancario y previsional

Este es un análisis de la distribución territorial del capital financiero en Chile, realizado a través del sistema bancario y previsional. La transferencia geográfica de capitales --que determina la existencia de regiones captadoras y colocadoras netas- revela una no correspondencia entre la geografía financiera y la del producto. La conducta territorial de esos recursos de capital -sea intermediada o desintermediada- confirma una reasignaci6n sectorial y regional de factores asociada a la apertura económica y al dinamismo exportador.En aquest article es fa una anàlisi de la distribució territorial del capital financer a Xile, a partir de I'estudi del sistema bancari i previsor. La transferència geogràfica de capitals --que determina l'existència d'unes regions captadores i col·locadores netes- revela una no correspondència entre la geografia financera i la del producte. La conducta territorial dels recursos de capital -ja sigui com a mitjancer o de forma desinteressada- confirma una resignació sectorial i regional de factors associada a l'obertura econòmica i al dinamisme exportador.L'article présente une analyse de la distribution territoriale du capital financier au Chili, réalisée à travers le système banquaire et de prévision. Les transfers géographiques de capitaux -qui déterminent l'existence de régions captatrices et doneuses nettes- révèlent un manque de correspondance entre la géographie financière et celle du produit. Le comportement territorial de ces ressources en capital, intermédiaires ou non, confirme une redistribution sectorielle et régionale de facteurs associés à l'ouverture économique et au dynamisme exportateur.The article analyses the spatial distribution of capital in Chile, on the basis of the banking system and forecasts. The geographical transfer of capital, wich gives rise to the existence of net receiving and placement regions, reveals that finance and production do not coincide. The spatial -intermediary and non-intermediary- performance of capital confirms rhe existence of sectorial and regional redistribution of factors associated with economic development and the dynamics of exportation