18420 research outputs found
Sort by
The Impact of the Government’s Fiscal Policy on Economic Development
No full textThis paper reviews the effects of government fiscal policy on economic development in the short run and long run. It describes the role of government investment policy on economic growth. Specifically, a research about relationship between government taxation on economic growth rates and economic growth using different approaches based primarily on the theory of economic growth is conducted. Paper starts with the empirical connections between economic development and fiscal policy. Specific model of development that offers possible explanations to the relationship are presented
Advancements in Smartphone Technology and Applications in Personal Knowledge Management
No full textMany times nowadays is emphasized the importance of access to up-to-date information.
In general our era is regarded as the information age. In the same time there is a trend to
couple information with an appropriate knowledge about particular area of research or
interest. Thus knowledge becomes an increasingly important asset for individuals and
organizations. With more upward intensity knowledge has been viewed as an active area
of research. Accordingly there is a need for highly skilled knowledge workers utilizing
knowledge management and personal knowledge management (PKM) approaches in
particular for performing their job duties, engaging in lifelong learning activities or for
managing their spare time things to do. Mobile devices are another phenomenon that has
overtaken twenty first century society. Their initial purpose to serve as a voice
communication enabler has been achieved already a while ago. Nowadays mobile
devices such as smartphones possess far more diverse functionality. Personal digital
assistants (PDAs) are another handheld devices equipped with a wide set of functions.
However smartphones tend to be more frequently used both in business and in nonbusiness
environments. Thus in this paper smartphone functionality and specifications
are explored as well as the latest advancements and development trends in this area.
Many times smartphones are used by knowledge workers as not infrequently their job
duties require mobility. A classification has been developed that categorizes smartphone
functionality and technical specifications in respect to applications in PKM. As follows
smartphone technology applications towards knowledge management and PKM are also
prospected. Finally the outcomes of this research are discussed and potential benefiting
parties are identified
Actuality of Interactive E-Portfolio Systems
No full textIn nowadays workspace which changes very fast, there is no doubt that the importance of creating, supporting and developing of appropriate educational promoting instruments is growing up. In this case e-portfolio systems play essential role, moreover, considering into account the topicality of lifelong learning issues. The aim of this paper is to provide brief overview of the study of powerful e-portfolio systems and render proposals to make them more effective. Pursuant to available research papers and other scientific resources, the author suggests further e-portfolios development and research directions
Porous Alumina – Mullite Ceramic, Structure and Properties
No full textHighly porous alumina-mullite ceramic with porosity 60 - 90 % is produced from concentrated suspensions. Porosity, mechanical strengthand high temperature deformation depends on the grain size of raw materials,amount of the pore formation agent, rheological properties of suspension and sintering temperature
Investigation of Spectral Efficiency for Mixed Data Rates Combined HDWDM Systems
No full textIn this work authors have evaluated one possible realization of mixed data rates combined HDWDM system. This system is offered as a transition stage form traditional WDM systems to HDWDM systems with a higher transmission capacity and spectral efficiency (SE). That type of system’s modernization is necessary to satisfy the demand for channel’s bit rate and transmission capacity, because internet traffic keeps doubling every year due to expansion and variety of new information services including data, online and broadband services, and their rapid advance
Noguruma plaisu agrīnās atklāšanas tehnoloģija šasijas stenda izmēģinājumos
No full textIzstrādājot gaisa kuģa elementu noguruma izmēģinājumu stendu tehnoloģijas, vissvarīgākie ir reālā slogojuma imitācijas un parametru jautājumi, kas ir saistīti ar noguruma plaisu rašanās un attīstības parametru analīzi.
Par pētījuma objektu tika izvēlēts pasažieru lidmašīnas šasijas statnis. Noguruma plaisu rašanās un attīstība tika regulāri kontrolēta ar tradicionālo nesagraujošās kontroles metodi, kā arī nepārtraukti ar akustiskās emisijas aparatūras palīdzību
Interior Damping in an Anisotropic Materials and Constructions
No full textThe design represents a generality of parts. The part consist of microelements. Physical features of microelements, type of connections between parts determine many characteristics of a design, including dissipation of energy. For their estimation consider cyclic loading of conditional microelement and typical connection between parts of constructions. In result is defined the equation of contour of a loop of a hysteresis and calculate her area at axial loading and a bend. The microelement consists of two ideally elastic particles, disjointed an elasto-plastic stratum. Orientation of a stratum has random character. At loading elastic parts of a microelement tend to move along a stratum. Displacements occur at some ultimate load when shear stress in a stratum reach yield strength. Values of yield limit of different microelements may differ. Therefore examination of character of loading of a device as a whole is necessary conduct with statistical methods. It is supposed, that allocations of an angle, defining orientation of a stratum of a microelement and of yield strength of layers, are the uniforms
Akustiskās emisijas metodes izmantošana kristālisko vielu izšķīdināšanas procesa izpētei
No full textVeicot kristālisko vielu šķīdināšanas pētījumus, rodas grūtības šķīšanas procesa stadijas noteikšanai. Šim nolūkam parasti izmanto ierīces, kuras domātas blīvuma mērīšanai, vai svarus, kuri ļauj noskaidrot vēl neizšķīdinātas vielas lielumu. Bet abām metodēm piemīt trūkumi (grūtības neliela vielas daudzuma mērīšanai, mērīšanas aparatūras augstā cena un neuniversālums). Akustiskās emisijas (AE) metodes pielietošana ļauj veikt šķīšanas procesu pētījumus neatkarīgi no vielas apjoma lieluma un neprasa speciālu nosacījumu veidošanu
Triboelementu ar nodilumizturīgiem pārklājumiem kvalitātes novērtēšana un drošuma prognozēšana
No full textDarbā ir piedāvāti dažādi atsevišķi triboelementu ar nodilumizturīgiem pārklājumiem kvalitātes novērtēšanas un drošuma prognozēšanas uzdevuma risinājumi. Atteices pakāpeniskā nodiluma rezultātā veidošanās modeļi ļauj veikt triboelementa ar vien- un daudzslāņu jonu-plazmas pārklājumu drošuma novērtēšanu. Piedāvātie modeļi ir konstruēti ievērojot paša pārklājuma un triboelementa pamatmateriāla kvalitātes nehomogenitāti. Mainīgie ir arī pārklājuma biezums un dilšanas ātrums
Realization of Optimal FBG Band–Pass Filters for High Speed HDWDM
No full textOptical wavelength division multiplexing (WDM) communication systems are forging ahead towards higher data transmission rate and lower channel spacing to utilize available bandwidth more effectively [1]. Increasing spectral efficiency is important for building efficient WDM communication systems, since this allows the optical infrastructure to be shared among many WDM channels, and thus reduces the cost per transmitted information bit in a fully loaded system [2].
In this paper we demonstrate performance of three different apodization profiles and their influence on high speed dense WDM systems main parameters: channel spacing and data transmission rate. We foresee that lower channel spacing and higher data transmission rate WDM systems will need FBG optical filters with inscribed more complex apodization profiles