4 research outputs found
FenntarthatĂł fejlĹ‘dĂ©s zöld technolĂłgiákkal törtĂ©nĹ‘ megvalĂłsĂtásának kutatása = Improvement of sustainable development with green technologies
EredmĂ©nyeink: 1. A megĂşjulĂł nyersanyag Ă©s energiatermelĂ©s tĂ©makörben igazoltuk, hogy a biomassza direkt hasznosĂtása mintegy tĂzszer jobb hatĂ©konyságĂş, mint az indirekt (ĂĽzemanyag) hasznosĂtás. MegállapĂtottuk, hogy a membránszűrĂ©s jĂł hatĂ©konysággal alkalmazhatĂł a biolĂłgiai alapĂş megĂşjulĂł energiahordozĂłk feldolgozásában, pl. cukorcirok, szĂłja fĹ‘zĹ‘lĂ© feldolgozás, állati táplálĂ©k-kiegĂ©szĂtĹ‘k feldolgozása/gyártása. MegvalĂłsult ipari tervezĂ©sĂĽnk van a tĂ©makörben. A pervaporáciĂłra Ăşj modellt állapĂtottunk meg, mely jobban Ă©s szĂ©lesebb koncentráciĂł intervallumban alkalmazhatĂł, mint az eddigiek. 2. A termĂ©szeti erĹ‘források hatĂ©kony felhasználása tĂ©makörben az energia hathatĂłs hasznosĂtását vizsgáltuk a rektifikálás tĂ©makörben. MegállapĂtottuk az exergiának a fontosságát Ă©s alkalmazási terĂĽleteit. D (desirability)-fĂĽggvĂ©nnyel vizsgáljuk az egyes rektifikálási alternatĂvák komplex hatását. 3. Az elkerĂĽlhetetlen emissziĂłk kezelĂ©sĂ©nek tĂ©makörĂ©ben a technolĂłgiai hulladĂ©kvizek szerves illĂ©kony szennyezĹ‘inek (VOC) Ă©s szerves halogĂ©nvegyĂĽleteinek (AOX) eltávolĂtására egy rektifikáláson alapulĂł mĂłdszert dolgoztunk ki,mellyel az AOX 8ppm alá szorĂthatĂł. MegvalĂłsult ipari tervezĂ©sĂĽnk van a tĂ©makörben. 4. Az egyes technolĂłgiai fejlesztĂ©sek környezeti hatáselemzĂ©sĂ©nek eszköze az Ă©letciklus elemzĂ©s. EgyĂ©rtelmű kapcsolatot állapĂtottunk meg az egyes elemzĹ‘ mĂłdszerek között. ProjektĂĽnkben 44 publikáciĂł. amibĹ‘l 4 “summa cum laude” minĹ‘sĂ©tĂ©sű PhD disszertáciĂł, szĂĽletett. | Our results: 1. We proved in the area of renewable raw material and energy production that the direct biomass utilization is ten times more efficient than that of the indirect (biofuel) one. We determined that the membrane filtration can be used with good efficiency in the case of processing raw materials or energy carriers of biological origin, e.g. sweet shogrun, soya process water, animal food supplement production/processing. We completed industrial design in this area. We established a new mathematical model for pervaporation that describes more efficient this operation than the previous ones. 2. In the area of the efficient use of natural resources, we investigated the effective use of energy in the rectification. We determined the importance of the use of the exergy and its application areas. D(desirability)-function was used to investigate the complex impact of the different rectification alternatives. 3. For the treatment of the inevitable emissions, the removal of the volatile organic compounds (VOC) and the adsorbable organic halides (AOX) impurities from process wastewaters we developed a method based on rectification which is capable to reduce the AOX content below 8ppm. . We completed industrial design in this area. 4. The tool of the estimation of environmental impacts is the life cycle assessment (LCA). We determined clear connection among different LCA methods. We completed 44 publications, among them 4 “summa cum laude” PhD dissertation
On the Potential of MP-QUIC as Transport Layer Aggregator for Multiple Cellular Networks
Multipath transport protocols have the ability to simultaneously utilize the different paths and thus outperform single-path solutions in terms of achievable goodput, latency, or reliability. In this paper our goal is to examine the potential of connecting a mobile terminal to multiple mobile networks simultaneously in a dynamically changing environment. To achieve this, first we analyze a dataset obtained from an LTE drive test involving two operators. Then we study the performance of MP-QUIC, the multipath extension of QUIC, in a dynamic emulated environment generated from the collected traces. Our results show that MP-QUIC may leverage multiple available channels to provide uninterrupted connectivity, and a better overall goodput even when compared to using only the best available channel for communication. We also compare the MP-QUIC performance with MPTCP, identify challenges with the current protocol implementations to fill in the available aggregate capacity, and give insights on how the achievable throughput could be increased
The Price for Programmability in the Software Data Plane: The Vendor Perspective
The killer features of the next-generation 5G mobile standard, including mobile edge computing and network slicing, will be very difficult to support with traditional fixed-function network appliances. Rather, the 5G core will depend on programmable switches, which allow packet processing functionality to be reconfigured on the fly in order to deploy virtualized network functions and service chains instantaneously. With 5G on the close horizon, it has become crucial to identify the price for programmability in the software data plane, considering the expected complexity and scale of the next-generation mobile core. In this paper, we report on a multi-year data-plane scalability study we have conducted for a large mobile vendor. Our results paint a rather pessimistic picture on the current landscape of the programmable software data plane. We find that the prominent programmable switches either do not provide all the features necessary to implement 5G telco pipelines efficiently or struggle to meet the scale, and the performance operators have come to expect from conventional fixed-function appliances. The only exception, ESwitch, remains proprietary. We call for further work on data-plane scalability and sketch some directions for future research