The main methods used to implement WLAN-3G inter working are: the mobile IP methods, the emulator method, and the gateway method. Each one of these methods enjoys some pros and suffers from some cons. In this paper, It is demonstrated to evaluate certain aspects of WLAN-3G inter working. Here, case studies are addressed: based on results of the current researches and some simulations developed ...

As the global financial crisis dethrones the developed world from its economic supremacy, by leading the global economic recovery and growth, the global growth generator (3G) countries are expected to fill the vacuum. Capital market i.e. stock market development can play a crucial role in augmenting such growth in these 3G countries. This study aims at augmenting the determinants of stock marke...

Internet technology is advancing with increasing internet applications demands. However, most developing countries have poor internet experience. Thus, the Quality of Service, QoS of an internet technology, Third Generation, 3G in a developing country, Nigeria was studied. Voice over internet protocol, VoIP and Video Streaming were the internet applications while CODECs and node density were th...

In this paper we examine the challenges of mobile peer-topeer (MP2P) applications in third generation cellular networks (3G) and mobile ad hoc networks (MANET). Whereas in MANET we identify peer-to-peer (P2P) searches and peer discovery of fully distributed P2P protocols as the most important problem, in 3G the problems include the lack of terminal-to-terminal connections and network operator b...

The self-assembled heterocapsule 1.2, which is formed by the hydrogen bonds of tetra(4-pyridyl)-cavitand 1 and tetrakis(4-hydroxyphenyl)-cavitand 2, encapsulates 1 molecule of guests such as 1,4-diacetoxybenzene 3a, 1,4-diacetoxy-2,5-dimethylbenzene 3b, 1,4-diacetoxy-2,5-dialkoxybenzenes (3c, OCH(3); 3d, OC(2)H(5); 3e, OC(3)H(7); 3f, OC(4)H(9); 3g, OC(5)H(11); 3h, OC(6)H(13); 3i, OC(8)H(17)), 1...

The 3G era brings new opportunities to telecommunications industry. This article introduces current situation of using network technology in digital library, in the 3G network, PTT has its own advantages so that it is feasible to be used in digital library. We highlight instance about digital library using PTT, and then solve the issue of context-aware transformation and use SIP-based system ar...

In this paper we develop a model of end users’ 3G adoption behavior based on the premise that 3G is not an entirely new innovation but rather an upgrade of mobile data services (MDS). Drawing theoretical foundations from the knowledge transfer paradigm in marketing research and based on the technological architecture of MDS, we hypothesize how beliefs about upgrading benefits and costs are form...

The last decade witnessed many Next Generation Networks (NGN) with each having a short life of only few years. The SecondGeneration Network (2G), which is already out of vogue in most advanced countries, is still being deployed in third world countries. The ThirdGeneration (3G) Network was expected to solve all the problems encountered in the previous generations, but the persistent demand for ...

Root extracts of Holostylis reniformis (Aristolochiaceae) yielded three new natural sesquiterpenes, a sesquiterpene with an unusual carbon skeleton, 4,5-seco-guaiane (7-epi-11-hydroxychabrolidione A, 1), a nine-membered lactone with new carbon skeleton (holostylactone, 2), and a new megastigmane [(6S,7E)-6,9-dihydroxy-10-(2'-hydroxy-ethoxy)-4,7-megastigmadien-3-one, 3], together with bulnesol a...

The purpose of this master’s project is to find the customer values (CVs) in services based on 3G technology. By using data from eight discussion interviews conducted with respondents from a variety of backgrounds and ages CVs, defined by the marketing discipline, is identified for a number of selected media and communication services. Those services were selected because they might be replaced...