Fixed Mobile Convergence Strategies

Fixed-Mobile Convergence (FMC) has become a hot topic in the telecom industry. Telecom operators are paying close attention to discovering a road of convergence based on their existing networks. However,there are no unified strategies regarding the implementation of FMC at present. This article analyzes the deployment of FMC strategies for different types of operators,as well as different network layers,while assessing the impact of FMC on the existing operating modes. The operators are suggested to take the existing network structure,operation and maintenance system and business modes into planning and find out their proper roads to network convergence.

Discussion on the Convergence Strategy of Comprehensive Services for China Telecom

This paper focuses on the ongoing convergence strategy of network and services of China Telecom in full services competition. The measures on the integration of mobile, fixed-line and Internet service, development of characteristic value-added services, marketing of differentiated business supporting services, and informationization strategy focused on customers are analyzed in proper detail. It is certain to help concerned readers to understand China Telecom’s goal and plan.

Discourse Construction of the Belt and Road Initiative in British and American Media:The Perspective of Proximization Theory

This study takes the reports on China’s“One Belt,One Road”in the British and American media as the object of study,mainly by collecting more than 10,000 words from the relevant reports published in the British media The Times,The Daily Telegraph and The Guardian from 2019-2022,to create a British corpus.A number of US media outlets,such as the New York Times,Los Angeles Times and Washington Post,were also collected to extract over 10,000 words of relevant corpus to create a US corpus.The BFSU Qualitative Coder 1.1,AntConc 3.5.7 and the LLX2 chi-square test were used to analyse the perceptions of the British and American corpora on China’s“One Belt,One Road”initiative,and to explore the temporal,spatial and value convergence of speakers and addressees in the corpus in the context of convergence theory.In this paper,we explore the specific distribution and pragmatic functions of the convergence of speakers and addressees in the corpus,in order to explore and reveal the different features of the application of convergence strategies in the British and American corpora in relation to China’s“One Belt,One Road”initiative.

Estimation of distribution algorithm enhanced particle swarm optimization for water distribution network optimization

The optimization of a water distribution network （WDN） is a highly nonlinear, multi-modal, and constrained combinatorial problem. Particle swarm opti- mization （PSO） has been shown to be a fast converging algorithm for WDN optimization. An improved estimation of distribution algorithm （EDA） using historic best positions to construct a sample space is hybridized with PSO both in sequential and in parallel to improve population diversity control and avoid premature conver- gence. Two water distribution network benchmark exam- ples from the literature are adopted to evaluate the performance of the proposed hybrid algorithms. The experimental results indicate that the proposed algorithms achieved the literature record minimum （6.081 MS） for the small size Hanoi network. For the large size Balerma network, the parallel hybrid achieved a slightly lower minimum （1.921M） than the current literature reported best minimum （1.923MC）. The average number of evaluations needed to achieve the minimum is one order smaller than most existing algorithms. With a fixed, small number of evaluations, the sequential hybrid outperforms the parallel hybrid showing its capability for fast convergence. The fitness and diversity of the populations were tracked for the proposed algorithms. The track record suggests that constructing an EDA sample space with historic best positions can improve diversity control significantly. Parallel hybridization also helps to improve diversity control yet its effect is relatively less significant.

Diverse strategic approaches en route to Taxol total synthesis

Taxol is one of the most famous diterpenoid natural products used in clinical cancer therapy.Taxol and its analogues are popular synthetic targets and have attracted worldwide attention over the past decades.Tremendous research efforts have already been made and ten groups have achieved the total synthesis of Taxol since 1994.This mini-review summarized the recent highlights of divergent strategic approaches towards the chemical synthesis of Taxol's carbocyclic framework bearing a bridged eight-membered ring.

A facile convergent route to dendritic polyols

The synthesis of monodisperse dendrimers triggers a great challenge to the synthetic chemistry. Here, we reported a facile convergent approach to the synthesis of the first generation, six-directional ether-bond polyols with better controlled structures and ease of purification.