Wyniki wyszukiwania - BazTech

1

Adsorptive removal of Zinc by bentonite: application of time series modeling method

Mesci B.

Archives of Environmental Protection

|

2011

|

Vol. 37, no. 3

101-113

EN

Zinc (II) removal using low-cost sorbents requires a proper process parametric study to determine its optimal performance characteristics. In this respect, the present study proposes a new modeling and simulation procedure for heavy metal removal system and is carried out to optimize input variables such as initial pH, adsorbent dosage, and contact time for biosorption of Zinc (II) by using bentonite. The proposed experimental system is cost-effective and requires less calculation for determining optimal values, i.e., input variables and their related removal capacity, R_em%. To optimize the adsorption process, cubic spline curve fitting and numerical differentiation techniques are used for required calculations. According to the proposed calculations, the removal capacity is calculated as 98.66%, while the optimal values are calculated as initial pH – 6.76, adsorbent dosage – 1.14 g L-1, contact time – 13 minutes. To evaluate the results, full factor experimental design and 3 way ANOVA test are used for comparison.

2

Wprowadzenie do architektury IP Multimedia Subsystem

Molisz W., Gałka P.

Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne

|

2009

|

nr 12

2035-2038

PL

Przedstawiono zwięzły opis architektury IP Multimedia Subsystem. Omówiono rdzeń architektury, działanie i współdziałanie podstawowych elementów funkcjonalnych, interfejsów i przykład komunikacji.

EN

The article gives a brief overview of the IP Multimedia Subsystem architecture. The IMS architecture is discussed, followed by a description of basic functions and cooperation rules between them, interfaces and example of communication.

3

Architektura IMS i związane z nią rozwiązania Lucent Technologies

Kucharski K.

Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne

|

2005

|

nr 2-3

87-91

PL

W rezultacie przeprowadzonych badań rynku i interakcji ze swoimi klientami, Lucent Technologies sformułował strategię, która umożliwia operatorom telekomunikacyjnym wykorzystanie wszystkich możliwych rodzajów technik dostępowych, zarówno stacjonarnych, jak i bezprzewodowych (DSL, 802.16, 802.11, CDMA, GSM/EDGE/UMTS, Ethernet, HFC, itd.), w celu dostarczania zintegrowanych usług multimedialnych nowej generacji.

EN

In result of market research and customers interviews Lucent Technologies created the strategy, that enables telecommunication network operators to provide access agnostic, enhanced, converged, multimedia services. The services are controlled in the same manner in all wireless and wireline access methods (DSL, 802.16, 802.11, CDMA, GSM/EDGE/UMTS, Ethernet, HFC, etc.). The strategy is a base of Lucent Technologies Accelerate program that uses the IMS (IP Multimedia Subsystem) architecture as a foundation of Next Generation Network. IMS architecture is gainig common acceptance across service providers, telecommunication vendors and standardization bodies. The ublication describes IMS architecture and how it is implemented in Lucent Technologies solutions portfolio. Additionally some market trends leading to IMS concept acceptance was included.