in this paper first we try to analysis the behavior ofthe soas in the optical networks and then have proposed anumerical simple model to simulate the behavior of thesemiconductor optical amplifiers. after that by employing thismodel as inline amplifier for a dwdm optical system, we havesimulated the transmission of 10 channels with bit rate 10 gb/sup to distance 3970 km with rz-dpsk modulation ...

Secondary organic aerosol (SOA) comprises a significant portion of atmospheric particular matter. The impact of particular matter on both human health and global climate has long been recognized. Despite its importance, there are still many unanswered questions regarding the formation and evolution of SOA in the atmosphere. This study uses a modeling approach to understand the preferred partiti...

The meso-scale chemistry-transport model CHIMERE is used to assess our understanding of major sources and formation processes leading to a fairly large amount of organic aerosols – OA, including primary OA (POA) and secondary OA (SOA) – observed in Mexico City during the MILAGRO field project (March 2006). Chemical analyses of submicron aerosols from aerosol mass spectrometers (AMS) indicate th...

In this article, we provide an approach to create a Conceptual level System Component Model specific to Service Oriented Architecture (SOA) in telecom. As a byproduct, SOA specific Architectural Decisions, and an SOA specific Architecture Overview Diagram will also be generated. This paper focuses on the preparation of the conceptual SOA Component Model to facilitate that selection.

In recent years, enterprise architecture (EA) has captured growing attention as a means to systematically consolidate and interrelate diverse business and IT artefacts in order to provide holistic decision support. The recent popularity of a service-orientation has added “service” and related constructs as a new element that requires consideration within EA. Since the emergence of the Service-O...

The main aim of this paper is to present the research findings on the solution of centralized Web-Services for students by adopting a framework and a prototype for Service Oriented Architecture (SOA) Web-Services. The current situation of students’ Web-based application services has been identified and proposed an effective SOA to increase the operational efficiency of Web-Services for them it ...

Theoretical research in international trade increasingly focuses on …rm heterogeneity in di¤erentiated product markets following Melitz (2003). A key implication of this line of research is that …rms are unevenly affected by trade liberalization: low productivity …rms exit, intermediate-productivity domestic …rms contract, and high-productivity exporting …rms expand. More recent theoretical res...

Recently, graphical representations of aerosol mass spectrometer (AMS) spectra and elemental composition have been developed to explain the oxidative and aging processes of secondary organic aerosol (SOA). It has been shown previously that oxygenated organic aerosol (OOA) components from ambient and laboratory data fall within a triangular region in the f44 vs. f43 space, where f44 and f43 are ...

The secondary organic aerosol (SOA) module in the Model for Ozone and Related Chemical Tracers, version 4 (MOZART-4) was updated by replacing existing two-product (2p) parameters with those obtained from two-product volatility basis set (2p-VBS) fits (MZ4C1), and by treating SOA formation from the following additional volatile organic compounds (VOCs): isoprene, propene and lumped alkenes (MZ4-...