63 research outputs found
Π Π½ΠΎΠ²ΠΎΠΌ ΡΠΎΠ΄Π΅ Π²Π΅ΡΡ Π½Π΅ΠΏΠ°Π»Π΅ΠΎΠ·ΠΎΠΉΡΠΊΠΈΡ ΡΠ°ΡΡΠ΅Π½ΠΈΠΉ Brovuchkia Parfenova gen. nov. ΠΈΠ· ΠΠ΅ΠΌΠ΅ΡΠΎΠ²ΡΠΊΠΎΠ³ΠΎ ΡΠ°ΠΉΠΎΠ½Π° ΠΡΠ·Π±Π°ΡΡΠ°
Multimedia information systems have been developed into service-ware. With the paradigms of web services, service oriented architectures (SOA), and Web 2.0 widgets, multimedia has become truly ubiquitous. However, interoperability, scalability, reliability and security are arising challenges at mobile multimedia service development. This paper focuses on the analysis, design, development and evaluation of a middleware that allows access from mobile devices to a bundle of multimedia services. The services are based on the international multimedia metadata description standard MPEG-7. The implementation is based on new generation of service-oriented application servers called Lightweight Application Server (LAS). Mobile web services refer to the fact that mobile servers host web services. A prototype was developed as a proof of concept, showing how to access MPEG-7 based multimedia services from a Mobile Host and the analysis results of providing MPEG-7 based multimedia services in the form of web services from the Mobile Host to other mobile devices. An alternative solution is to apply enterprise service bus technology as the middleware. The performance evaluation results of both approaches show the reliable accessibility of MPEG-7 based multimedia services via the enterprise service bus solution
ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π³Π΅Π½Π΅ΡΠ°ΡΠΈΠΈ ΠΊΠΎΠ³Π΅ΡΠ΅Π½ΡΠ½ΠΎΠ³ΠΎ ΡΠ΅Π½ΡΠ³Π΅Π½ΠΎΠ²ΡΠΊΠΎΠ³ΠΎ ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ 500-850 ΠΡΠ ΡΠ»Π΅ΠΊΡΡΠΎΠ½Π°ΠΌΠΈ Π² ΡΠ»ΠΎΠΆΠ½ΡΡ ΠΏΠ΅ΡΠΈΠΎΠ΄ΠΈΡΠ΅ΡΠΊΠΈΡ ΡΠ°Π΄ΠΈΠ°ΡΠΎΡΠ°Ρ
ΠΡΠΈΠ²Π΅Π΄Π΅Π½ Π°Π½Π°Π»ΠΈΠ· ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠΎΠ² ΡΠ΅ΡΠΈΠΈ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠΎΠ², Π²ΡΠΏΠΎΠ»Π½Π΅Π½Π½ΡΡ
ΡΠ°Π½Π΅Π΅ Π½Π° ΡΠ»Π΅ΠΊΡΡΠΎΠ½Π½ΠΎΠΌ ΡΠΈΠ½Ρ
ΡΠΎΡΡΠΎΠ½Π΅, ΠΏΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΠΎΠ² Π³Π΅Π½Π΅ΡΠ°ΡΠΈΠΈ ΠΊΠΎΠ³Π΅ΡΠ΅Π½ΡΠ½ΠΎΠ³ΠΎ ΡΠ΅Π½ΡΠ³Π΅Π½ΠΎΠ²ΡΠΊΠΎΠ³ΠΎ ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ 500-850 ΠΡΠ ΡΠ»Π΅ΠΊΡΡΠΎΠ½Π°ΠΌΠΈ Π² ΡΠ»ΠΎΠΆΠ½ΡΡ
ΠΏΠ΅ΡΠΈΠΎΠ΄ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΌΠ½ΠΎΠ³ΠΎΠΊΡΠΈΡΡΠ°Π»ΡΠ½ΡΡ
ΡΠ°Π΄ΠΈΠ°ΡΠΎΡΠ°Ρ
ΠΈ ΡΠ°Π΄ΠΈΠ°ΡΠΎΡΠ°Ρ
ΡΠΈΠΏΠ° ΠΌΠ½ΠΎΠ³ΠΎΡΠ»ΠΎΠΉΠ½ΡΡ
ΠΈΠ½ΡΠ΅ΡΡΠ΅ΡΠ΅Π½ΡΠΈΠΎΠ½Π½ΡΡ
ΡΠ΅Π½ΡΠ³Π΅Π½ΠΎΠ²ΡΠΊΠΈΡ
Π·Π΅ΡΠΊΠ°Π». ΠΠ½Π°Π»ΠΈΠ· ΠΏΠΎΠΊΠ°Π·Π°Π», ΡΡΠΎ ΡΠ°ΠΊΠΎΠΉ ΠΏΠΎΠ΄Ρ
ΠΎΠ΄ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΠΏΠΎΠ»ΡΡΠΈΡΡ Π±ΠΎΠ»Π΅Π΅ ΠΈΠ½ΡΠ΅Π½ΡΠΈΠ²Π½ΠΎΠ΅ ΠΈ ΡΠ·ΠΊΠΎΠ½Π°ΠΏΡΠ°Π²Π»Π΅Π½Π½ΠΎΠ΅ ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΠ΅, ΡΠ΅ΠΌ ΠΏΡΠΈ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠΈ ΠΌΠΎΠ½ΠΎΠΊΡΠΈΡΡΠ°Π»Π»ΠΎΠ², Π·Π° ΡΡΠ΅Ρ Π²ΠΊΠ»Π°Π΄Π° Π΄ΠΈΡΡΠ°Π³ΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ ΡΠ΅Π½ΡΠ³Π΅Π½ΠΎΠ²ΡΠΊΠΎΠ³ΠΎ ΠΏΠ΅ΡΠ΅Ρ
ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ
Conditions for ignition of the volume discharge in the systems of gas electrofiltration
ΠΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½ΠΎ Π²ΠΏΠ»ΠΈΠ² ΠΊΠΎΠ½ΡΡΡΡΠΊΡΡΡ Π΅Π»Π΅ΠΊΡΡΠΎΠ΄Π½ΠΈΡ
ΡΠΈΡΡΠ΅ΠΌ ΡΠ° ΡΠ²ΠΈΠ΄ΠΊΠΎΡΡΡ Π³Π°Π·ΠΎΠ²ΠΎΠ³ΠΎ ΠΏΠΎΡΠΎΠΊΡ Π½Π° ΡΠΌΠΎΠ²ΠΈ Π·Π°ΠΏΠ°Π»ΡΠ²Π°Π½Π½Ρ ΡΠ° ΠΏΡΠ΄ΡΡΠΈΠΌΠΊΠΈ ΡΡΠ°Π±ΡΠ»ΡΠ½ΠΎΠ³ΠΎ ΠΎΠ±'ΡΠΌΠ½ΠΎΠ³ΠΎ ΡΠΎΠ·ΡΡΠ΄Ρ Π² ΡΠΈΡΡΠ΅ΠΌΠ°Ρ
Π΅Π»Π΅ΠΊΡΡΠΎΡΡΠ»ΡΡΡΠ°ΡΡΡ Π³Π°Π·ΡΠ². ΠΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΠΎ Π΄Π»Ρ ΠΎΡΡΠΈΠΌΠ°Π½Π½Ρ ΠΎΠ±'ΡΠΌΠ½ΠΎΠ³ΠΎ ΡΠΎΠ·ΡΡΠ΄Ρ, ΡΠΊΠΈΠΉ Π·Π°-
ΠΉΠΌΠ°Ρ Π²Π΅ΡΡ ΠΌΡΠΆΠ΅Π»Π΅ΠΊΡΡΠΎΠ΄Π½ΠΈΠΉ ΠΎΠ±'ΡΠΌ, Π½Π΅ΠΎΠ±Ρ
ΡΠ΄Π½Π΅ Π·Π°ΡΡΠΎΡΡΠ²Π°Π½Π½Ρ Π΅Π»Π΅ΠΊΡΡΠΎΠ΄Π½ΠΎΡ ΡΠΈΡΡΠ΅ΠΌΠΈ ΡΠΈΠΏΡ Β«ΡΡΡΠΊΠ°Β» Π· ΡΠΈΠΌΠ΅ΡΡΠΈΡΠ½ΠΈΠΌ ΡΠΎΠ·ΡΠ°ΡΡΠ²Π°Π½Π½ΡΠΌ ΠΎΡΠ°Π΄ΠΆΡΠ²Π°Π»ΡΠ½ΠΈΡ
Π΅Π»Π΅ΠΊΡΡΠΎΠ΄ΡΠ². ΠΠ°ΠΏΡΡΠ³Π° Π·Π°ΠΏΠ°Π»ΡΠ²Π°Π½Π½Ρ ΠΉ ΡΠ½ΡΠ΅Π½ΡΠΈΠ²Π½ΠΎΠ³ΠΎ ΡΠ²ΡΡΡΠ½Π½Ρ ΡΠ°ΠΊΠΎΠ³ΠΎ ΡΠΎΠ·ΡΡΠ΄Ρ 55β60 ΠΊΠ ΠΏΡΠΈ ΡΠ°ΡΡΠΎΡΡ ΠΏΡΠΎΡ
ΠΎΠ΄ΠΆΠ΅Π½Π½Ρ
ΡΠΌΠΏΡΠ»ΡΡΡΠ² Π²ΡΠ΄ 1 Π΄ΠΎ 3 ΠΊΠΡ. ΠΠ»Ρ Π½Π΅Π΄ΠΎΠΏΡΡΠ΅Π½Π½Ρ Π²ΠΈΠ½ΠΈΠΊΠ½Π΅Π½Π½Ρ ΠΊΠΎΠ½ΡΡΠ°ΠΊΡΡΡ ΠΌΡΠ½ΡΠΌΠ°Π»ΡΠ½Π° ΡΠ°ΡΡΠΎΡΠ° ΠΏΡΠΎΡ
ΠΎΠ΄ΠΆΠ΅Π½Π½Ρ ΡΠΌΠΏΡΠ»ΡΡΡΠ² ΠΏΠΎΠ²ΠΈΠ½Π½Π° Π±ΡΡΠΈ ΠΏΡΠΎΠΏΠΎΡΡΡΠΉΠ½Π° ΡΠ²ΠΈΠ΄ΠΊΠΎΡΡΡ ΠΏΠΎΡΠΎΠΊΡ Π³Π°Π·Ρ Ρ ΠΎΠ±Π΅ΡΠ½Π΅Π½ΠΎ ΠΏΡΠΎΠΏΠΎΡΡΡΠΉΠ½Π° Π΄ΠΎΠ²ΠΆΠΈΠ½Ρ ΠΊΠ°Π½Π°Π»Ρ ΠΏΡΠΎΠΊΠ°ΡΡΠ²Π°Π½Π½Ρ Π³Π°Π·Ρ.The influence of the design of electrode systems and the speed of the gas flow on the conditions of ignition and maintenance of a stable volumetric discharge in the systems of electrofiltration of gases is studied. It is established that to obtain a volume discharge,
which occupies the entire interelectrode volume, it is necessary to use an electrode system of the "brush" type with a symmetrical arrangement of the precipitation electrodes. The voltage of ignition and intensive luminescence of such a discharge is 55-60 kV at a
repetition rate of 1 to 3 kHz. It became possible to generate the total plasma volume up to 10 L using this electrode system. The mean electric power consumed for sustaining the stable voluminous discharge in this volume was 0.8 W. The research of the effect of gasdynamic processes on the stability of the voluminous discharge revealed that the gas flow velocity not exceeding 20 m/s produces no effect on the ignition and sustaining of a stable discharge. To prevent the occurrence of contraction, the minimum pulse repetition rate should be proportional to the gas flow rate and inversely proportional to the length of the gas flow channel
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