Integrated Avionics Systems - Diagnostic Tools and Data Transmission Standards
The paper has been intended to present research tools used at AFIT to activate and test hardware and software implemented in the integrated avionics systems. Particular attention has been paid to the research stand (built under the R&D project of the Ministry of Science and Higher Education) intended to optimize avionics systems integrated with digital data buses employed (according to, among other things, MIL-STD-1553B and ARINC-429 standards). Specialized research equipment/test devices used to test software, including - apart from other things - test-patterns generators (within the range of display capability of the secondary head-up display (SHUD)) and information efficiency testers (for the SHUD and up-front control panel (UFCP) thereof) have also been presented.
During the last two decades, Poland has become a large recipient of inward foreign direct investment (FDI). This article uses standard panel data techniques to study empirically the determinants of inward FDI in Poland during the period 1996–2015 made by multinational enterprises coming from the old European Union (EU)-15 member states. The estimated specification is derived from the knowledge-capital (KC) model and includes two types of capital: human and physical. The assembled empirical evidence points to the horizontal motive as the primary reason for undertaking FDI in Poland by multinational firms based in the old EU-15 member states. Moreover, the KC model does not seem to explain better the pattern of inward FDI in Poland compared to the standard ad hoc gravity model of international capital mobility.
Methods of Checking the Reliability of Software Applications in the Avionic Systems Integrated Along the Digital Databus MIL-1553B
This The paper presents results of research that was carried out in the Air Force Institute of Technology (ITWL) with respect to test whether information in the avionic systems integrated along the digital databus MIL-1553B is processed correctly. The second part goes into details related to methods that are used in the ITWL to test the MIL-1553B databus on the stages when start up and validation of an integrated avionic system are carried out, in particular those that were applied for upgrading of aircrafts operated by the Air Forces of the Republic of Poland.
This article studies the impact of ASEA N on the bilateral exports of its 10 member countries. It reports the results of applying the gravity model to a data set covering 50 partner countries from 1967 to 2008. The study’s empirical findings show that on average ASEA N regionalism significantly increases bilateral exports. However, the results are country-specific and indicate that ASEA N seems to benefit only large economies with a long history of membership, while smaller more recent members do not show significant expansion of exports.
The main goal of this paper is to investigate empirically whether the adoption of the common currency increases the export activity of individual frms using the probity model. There are many studies that seek to estimate the aggregate trade effects of the adoption of the euro by the “outside” EU countries, which are based on the gravity model. In contrast to the existing literature we use an alternative micro econometric approach based on firm level data compiled by the EBRD and the World Bank. We demonstrate that the propensity to export of individual frms from Slovenia and Slovakia increased after the accession of those countries to the Eurozone.
In this paper we study Zipf’s law, which postulates that the product of a city’s population and its rank (the number of cities with a larger or equal population) is constant for every city in a given region. We show that the empirical literature indicates that the law may not always hold, although its general form, the rank-size rule, could be a good first approximation of city size distribution. We perform our own empirical analysis of the distribution of the population of Polish cities on the largest possible sample to find that Zipf’s law is rejected for Poland as the city sizes are less evenly distributed than it predicts.
In this paper we revisit the existing empirical evidence on the effects of various agglomeration externalities and the market structure on employment growth in the high-tech industries of the European Economic Area (EEA). Our study is based on the dynamic panel dataset of two-digit NACE rev 1.1. industries in 285 regions of the European Economic Area for the period 1995-2007. We find that employment growth is negatively related to competition, while localization and urbanization externalities do not seem to affect growth.
The paper examines the effects of intra- and inter-regional knowledge spillovers on innovative activities in German states using the augmented Griliches-Jaffe knowledge production function. The “Harris market potential” type index is calculated to proxy for inter-regional knowledge transfers of two types: industrial knowledge transfers generated from the business enterprise sector and academic spillovers generated from universities across all German states. The model also includes the concentration of high-tech enterprises, in order to capture the agglomeration effect in the local economy. The estimation results reveal that not only do local private and university research efforts have a positive and significant effect on local innovative activities, but there are also important interregional knowledge spillovers across the German regions.
This paper examines the determinants of total factor productivity (TFP) of Ukrainian firms in manufacturing and services, using micro-level data for the years 2005 and 2013. We first estimate regressions for the pooled dataset for the manufacturing and service sectors jointly, and then separately for each sector. Our empirical results show a positive link between the total factor productivity, intangible assets, capital intensity, firm size, competition in the industry, ownership status, and firm internationalization (exports and imports). In addition, we find that the determinants of productivity differ among the sectors and years of our sample.
This paper studies the determinants of the total factor productivity (TFP) for Ukrainian firms in the manufacturing sector across macro-regions using recent micro-level datasets for 2013. Our empirical results show some degree of heterogeneity across Ukrainian macro-regions; in particular, the link between the total factor productivity, firm size, imports and the level of competition seems to be valid for all macro regions. However, the effects of private ownership status, capital intensity and exports seems to be region specific. In addition, we found no relationship between firm productivity and foreign ownership for any of the regions.