Android系统智能手机语音应用开发环境构架

3G无线网络技术的飞速发展促进了移动终端硬件性能不断提升。具有多功能、多应用和服务"智能化"等特点的新一代智能手机正在逐渐取代传统的功能手机。着眼智能手机的语音应用开发,选取Android操作系统智能手机,介绍其语音应用开发环境的构架,并提出基于此构架的语音应用开发解决方案。

基于GPU的CUDA应用开发环境构架

随着GPU(graphics processing unit,图像处理单元)的快速发展,其强大的计算能力使得GPU由最初仅用于加速图形计算,越来越多地应用到非图形领域的计算。在CPU-GPU体系中,CPU负责进行复杂的逻辑运算和事务管理等不适合并行处理的数据计算,GPU负责进行计算密集度高、逻辑分支简单的适合并行处理的大规模数据计算。CPU-GPU体系的不断完善,使得利用GPU来加速大规模科学计算成为了一种必然趋势。着眼GPU的应用开发,介绍在windows环境下CUDA+VS2008开发平台的构架,并对该构架下GPU与CPU的科学计算性能进行比对。

高校网络教学支撑环境构架

针对网络教学环境构架,分析网络教学模式,提出高校网络教学支撑环境构架应该能全面支持教学活动、内容学习、沟通交流、资源服务四个方面的需求,并介绍了云南大学网络教学支撑环境各个系统的构建.

高职院校网络教学环境的构架

根据网络教学的新特征和网络教学环境的现状,阐述了要实现网络教学必需从硬件、软件、人力资源等方面完善建设。

基于卷积神经网络的思政课程教学评价系统

影响思政课程教学质量的因素具有种类繁杂、数量庞大的特点,导致评价结果与实际情况的一致性较低,因此提出基于卷积神经网络的思政课程教学评价系统。以Versatile^(TM) Express为开发手段,构建以CoreTile Express板为核心的系统环境构架,在卷积神经网络中对各个学习参数进行差异化赋权,并通过学生反馈数据与预期思政教学结果之间的拟合情况实现对思政课程教学的评价。实验结果表明,设计系统评价结果的Cronbach’s α系数稳定在0.900以上,均值为0.904 9,与实际情况有较高的一致性。

A SYNTHETIC ENVIRONMENT FOR SYSTEM EVOLUTION

Due to the immaturity of practice and the increasing complexity of system of system (SoS). It is necessary to develop systematic methodologies that enable evolution of such systems. This paper presents a prototype design for a synthetic system evolution environment (SEE). It outlines the purpose of the environment, describes its concept of operations, details its main functions and processes in utilizing the system architecture knowledge for systems evolution, and introduces its initial high level architecture design.In addition, it also documents the approach for developing the environment.

An Open Architecture for Converged Internet of Things

An open architecture for converged Internet of Things (IoT) is proposed in this paper.By using this model,the various and huge amount of data can be converted into converged data and then encapsulated as service packages.Moreover,a Representational State Transfer (REST) platform has been implemented in the lab environment.The merit of this architecture is the enhancement of data efficiency.Experimental results are provided to show the benefits of the proposed architecture.

New Developments in Maritime Communications： a Comprehensive Survey

This paper summarizes the requirements for modem maritime wireless communication networks in the marine environments including the sea- to-sea and sea-to-shore communication scenarios. The existing maritime wireless communication sys- tems are presented and the development of the state-of-the-art maritime communication systems is surveyed. Furthermore, a hierarchical and integrated maritime network architecture is proposed to satisfy the increasing various classes of services which demand different Quality of Service （QoS）. Finally, the open issues for further development of maritime communications are identified.

Lightweight SOA-Based Twin-Engine Architecture for Enterprise Systems in Fixed and Mobile Environments

Mobile devices as a popular computing platform for enterprise systems have enabled certain tasks to be executed out of office.However,the work may be interrupted due to the server shutdown or network disconnection when employees access traditional single-engine Business Process Management System.To overcome this defect,we present a lightweight twin-engine architecture based on Service Oriented Architecture(SOA).In this paper,we discuss in detail the design and implementation of the architecture,and present a trigger mechanism to activate engines according to the states of hybrid environments since it is critical for the two types of engines to cooperate closely in hybrid environments with fixed and mobile computing resources.The experimental results validate the usability of the architecture.

Is a Human Right to Democracy Justifiable？

In this article, I examine the view that there is a human right to democracy, and consider why we should regard this issue as decisive in solving the problems of foreign interference in the protection of human rights. I also note that there has been almost no discussion about the holder of the human right to democracy, that is, who is to hold this right. After comparing John Rawls＇ argument against the human right to democracy and Thomas Christiano＇s argument for it and showing similarities and critical differences among their arguments, I insist that we ought to be sensitive when proclaiming that democracy--be it a minimally egalitarian democracy or a more exacting one--is a universal value. We have sufficient cause to consider carefully not only the political circumstances but also the political infrastructure of the country before we proceed to an even limited intervention in the name of the protection of a human right to democracy. If the human right to democracy is not just a right to vote, but a right to the whole process of establishment and enjoyment of democracy, it should be understood as a group right that pertains to a human population that legitimately claims political self-determination. Any human population that insists on the democratic self-determination of their political will is both able and entitled to establish and administer democratic institutions, regardless of the diversity of its ascribed or cultural characteristics. The establishment of such a group with a firm political identity should be considered as the political infrastructure to claim and exercise the human right to democracy.

Authorization Administration in a Distributed Multi-application Environment

To meet the authorization administration requirements in a distributedcomputer network environment, this paper extends the role-based access control model with multipleapplication dimensions and establishes a new access control model ED-RBAC(Extended Role Based AccessControl Model) for the distributed environment. We propose an extendable hierarchical authorizationassignment framework and design effective role-registeringi role-applying and role-assigningprotocol with symmetric and asymmetric cryptographic systems. The model can be used to simplifyauthorization administration in a distributed environment with multiple applications.

Multiple Mobile Sinks Data Dissemination Mechanism for Large Scale Wireless Sensor Network

WSN has been developing from traditional environment monitoring applications to the ubiquitous information services such as the Congestion-oriented Intelligent Transportation System （ColTS）. However, the mobility of nodes makes data dissemination a hard nut to crack. In this paper, we propose MSDD, a multiple mobile sinks data dissemination mechanism for solving the dissemination problem. The main ideas of MSDD are constructing a two-tier grid structure by a designated sink, exploiting a hierarchical monitoring mechanism, and employing a global agent to track the sink locations in order to make the emergencies reported to the sinks immediately, In addition, MSDD supports the query-driven data dissemination. Being compared with TTDD, MSDD is theoretically proved to have less communication overhead. We also validate MSDD outperforms TTDD in reliability and the emergency delivery latency bv simulations.

Geographic analysis-oriented Virtual Geographic Environment:Framework,structure and functions

Previous research on the Virtual Geographic Environment （VGE） has focused mainly on representation rather than geographic analysis. However, geographic analysis plays a significant role in modem geography. To address this issue, this paper systematically examines theories and implementing VGE techniques that support geographical analysis and simulation. Based on its framework, VGE can be divided into four subtypes. These are the data environment, modeling environment, expression environment, and collaborative environment. The functions and key techniques of each are examined, and some case studies are discussed. This study provides direction for necessary new developments of advanced VGE platforms.

Immobilization of heparin on decellularized kidney scaffold to construct microenvironment for antithrombosis and inducing reendothelialization

In recent years, rapid development of tissue engineering technology provides possibilities for the construction of artificial tissues or organs. In construction of engineered kidneys, researchers used native decellularized extracellular matrix(ECM) as the scaffolds to recellularization. However, thrombosis has been a great issue that hinders the progress of transplantation in vivo. In this study, heparin was immobilized to the collagen part of decellularized scaffold with collagen-binding peptide(CBP). Through the anticoagulant and endothelial cell reperfusion experiments, it can be demonstrated that the heparinized scaffolds absorbed less platelets and red blood cells which can effectively reduce the formation of thrombosis. Moreover, it is conducive to longterm adhesion of endothelial cells which is important for the formation of subsequent vascularization. Taken together, our results reveal that the whole kidney can be modified by CBP-heparin composite to reduce the thrombosis and provide the better conditions for neovascularization.

Elaborate Architecture of the Hierarchical Hen＇s Eggshell

Eggshells are one of the most common and well-studied biomaterials in nature and exhibit unique properties of gas conduction. However, the morphologies of eggshells at the submicro-/nano-scale and their impact on eggshell functions remain unclear. In this work, the architecture of hen＇s eggshell at different length scales has been systematically investigated by scanning electron microscopy （SEM） and environmental SEM （ESEM）. It is found that the skeleton of calcium carbonate （CaCO3） has hierarchical structures at nano- to micro-scales： primary nano-particles of -10 Fain loosely congregate giving a porous and rough texture, and compose the upper-level morphologies including submicro spheres, nano-rods, rhombohedral-cleavage pattern and slices, which are elaborately arranged in a surface layer, palisade layer and mammillary layer along the radial direction. Accordingly, the pore system exhibits a three-level hierarchy, namely nano-scale pores （between nano-rods and primary nano-particles）, submicro-scale pores （＂bubble pores＂） and micro-scale pores （opening of ＂gas pores＂）. Further investigation shows that hen＇s eggshell regulates gas conduction through adjusting the sizes and numbers of submicro-scale ＂bubble pores＂. Based on our observations, a new description of hen＇s eggshell is presented, which amends the conventional view of micro-scale, straight and permeating ＂gas pores＂, and reveals the role of hierarchical pores in gas conduction and contamination resistance.