Digital libraries： A testbed for multimedia technology

INTRODUCTION One of the greatest attractions of a digital library is its multimedia resources humans can use for informa- tion retrieval to knowledge discovery and information integration. A problem of multimedia researchers is to find a so-called killer-Apps which can demonstrate well the potentials of research topics such as video sum- marization, semantic annotation, multimedia cross indexing and retrieval, etc. Deeper research and wider ap- plications of digital libraries revealed the…     

The Million Book Project at Bibliotheca Alexandrina

INTRODUCTION The Bibliotheca Alexandrina (BA) has develop- ed a workflow for turning printed books into digital books. The process starts with selection of books to be digitized, which is done mainly by BA’s Library Service Department. Books metadata is entered into the Digital Lab database. Metadata entry is followed by three core phases: scanning phase, in which the digital copy is generated; processing phase, in which image enhancement is performed; and OCR phase, in which text i…     

A text to speech interface for Universal Digital Library

INTRODUCTION The objective of Universal Digital Library (UDL) is to capture all books in digital format (Universal Digital Library, 2005; Digital Library of India, 2005). Most of the digital information present in the digital world is accessible to a few who can read or under- stand a particular language. Language technologies can provide solutions in the form of natural interfaces so that digital content can reach the masses and fa- cilitate the exchange of information across differe…     

Education for sustainable development: A Sino-English comparative study in environmental education

In the People’s Republic of China and England, the Government has devoted much attention in recent years to environmental education. the approaches taken in both countries differ, however. The paper looks at some of the similarities and differences that exist and the reasons for them. In particular the paper looks at policy issues as well as practical aspects of environmental education. The idea of Education for Sustainable Development, which is referred to more in England than in China, is critically examined. Project(D09702) supported by the State Education Ministry for the “Ninth Five-Year” Plan.     

Analysing the state of student participation in two Eco-Schools using Engeström’s Second Generation Activity Systems Model

Abstract

This research investigates the state of student participation in the Eco-Schools programme in two selected secondary schools located in Spain and the Netherlands. The focus is on understanding the levers of student participation and of the factors leading to a whole-school approach. Engeström’s Second Generation Activity Systems Model is used as an analytical framework. The study also reflects on the merits and shortcomings of this framework. The analysis of the two cases revealed contradictions in the intended effect of the Eco-School programme on fostering student-led change towards sustainability and a whole-school approach. The research suggests that student participation in Eco-School programme can be fostered by using an activity-based ‘whole institution’ approach that interlinks a reflective and action-based procedure, by adapting the students’ learning environment according to their needs and capabilities, by providing for close teacher guidance in Eco-School activities and establishing good student-teacher-relationships, and, finally, by incorporating the Eco-School programme into the school’s overall educational framework.     

Autonomous optimal coordination scheme in protection system of power distribution network by using multi-agent concept

A protection system using a multi-agent concept for power distribution networks is pro- posed. Every digital over current relay(OCR) is developed as an agent by adding its own intelli- gence, self-tuning and communication ability. The main advantage of the multi-agent concept is that a group of agents work together to achieve a global goal which is beyond the ability of each individual agent. In order to cope with frequent changes in the network operation condition and faults, an OCR agent, proposed in this paper, is able to detect a fault or a change in the network and find its optimal parameters for protection in an autonomous manner considering information of the whole network obtained by communication between other agents.Through this kind of coordi- nation and information exchanges, not only a local but also a global protective scheme is com- pleted. Simulations in a simple distribution network show the effectiveness of the proposed protec- tion system.     

Science Letters: A robust polysilicon-assisted SCR in ESD protection application

A novel polysilicon-assisted silicon-controlled rectifier (SCR) is presented and analyzed in this paper, which is fabricated in HHNEC's 0.18 μm EEPROM process. The polysilicon-assisted SCRs take advantage of polysilicon layer to help bypass electro-static discharge (ESD) current without occupying extra layout area. TLP current-voltage (Ⅰ-Ⅴ) measurement results show that given the same layout areas, robustness performance of polysilicon-assisted SCRs can be improved to 3 times of conventional MLSCR's. Moreover, one-finger such polysilicon-assisted SCRs, which occupy only 947 μm2 layout area, can undergo 7-kV HBM ESD stress. Results further demonstrate that the S-type Ⅰ-Ⅴcharacteristics of polysilicon-assisted SCRs are adjustable to different operating conditions by changingthe device dimensions. Compared with traditional SCRs, this new SCR can bypass more ESD currents and consumes smaller IC area.     

A control system of material handlingin FMS

lIntroductionTheflexiblemanulhcturingtechnology(FMT)originatedinUSAinthemid1960s',sincethenithasspreadtomanyothercountries.Duringthelastfewyears,theflexiblemanufacturingsystem(FMS)hasdemonstratednotonlypopularintheindustrializedcountries,butalsofindsitsap…     

Culture,indigenous knowledge systems and sustainable development: A critical view of education in an African context

The article’s focus is the relationship between culture, indigenous knowledge systems (IKS), sustainable development and education in Africa. It analyzes the concept of sustainability with particular reference to education and indigenous knowledge systems. In particular the article analyzes the documents from the World Summit in Johannesburg in 2002 as well as from the United Nations Decade of Education for Sustainable Development. Moreover, the article discusses South Africa’s Curriculum 2005 (C 2005) launched by the African National Congress (ANC) by focusing on the dilemmas of exclusively introducing Western-based scientific knowledge in a cultural context based on indigenous epistemology. The article concludes by calling for more research into the viability of indigenous knowledge systems as a potential tool in sustainable development.     

A framework for revitalisation of rural education and training systems in sub-Saharan Africa: Strengthening the human resource base for food security and sustainable livelihoods

Recent studies of the current state of rural education and training (RET) systems in sub-Saharan Africa have assessed their ability to provide for the learning needs essential for more knowledgeable and productive small-scale rural households. These are most necessary if the endemic causes of rural poverty (poor nutrition, lack of sustainable livelihoods, etc.) are to be overcome. A brief historical background and analysis of the major current constraints to improvement in the sector are discussed. Paramount among those factors leading to its present ‘malaise’ is the lack of a whole-systems perspective and the absence of any coherent policy framework in most countries. There is evidence of some recent innovations, both in the public sector and through the work of non-governmental organisations (NGOs), civil society organisations (CSOs) and other private bodies. These provide hope of a new sense of direction that could lead towards meaningful ‘revitalisation’ of the sector. A suggested framework offers 10 key steps which, it is argued, could largely be achieved with modest internal resources and very little external support, provided that the necessary leadership and managerial capacities are in place.     

Global Memory Net and the development of digital image information management system： Experience and practice

INTRODUCTION Directed by Prof. Ching-chih Chen of Simmons College, Boston and supported by the US NSF/In- ternational Digital Library Program (IDLP) since 2000, Global Memory Net (GMNet) is intended to be an effective gateway to the world cultural, historical, and heritage image collections from selected academic educational and research partners in the world. Much of these unique collections of great value to educationand research are not currently accessible due to dis- tance, …     

Poverty alleviation and integrated service delivery: Literacy,early child development and health

This paper argues that many internationally financed literacy programs do not sufficiently take into consideration important daily life issues of the learners, including nutritional deficiencies that may hinder learning, or of children–parent–society interactions that may improve learning. As a result, many programs have become synonymous with increased supply of a low-quality education. Often, these programs address almost exclusively Education for All (EFA) international policy targets, without sufficiently addressing other poverty alleviation targets, as defined by the Millennium Development Goals (MDGs). This paper further contends that approaches that would generate the greatest effects within an EFA-perspective may not be the best way to alleviate poverty within a MDGs-perspective. Based on a case study of a women's literacy program in Senegal, this paper proposes to look at needs within an MDG perspective, and to use multi-pronged and integrated approaches to intervene in sectors where the poverty alleviation impact is the greatest.     

再论“我把你个／这＋名词性成分”句

近代汉语“我把你／这（个）＋名词性成分”（“S把O”）的结构是一种特殊的句式结构，表詈称，不是一般意义上所说的“把”字句的省略，其中“O”这个名词性的成分指称的有定性与有生性决定了它充当骂詈称谓语的特性。     

Optimum weighting-coefficient-pair in inter-carrier interference self-cancellation scheme of OFDM system

As one of the most important components of the wideband wireless access technique, orthogonal frequency division multiplexing （OFDM） has a high usage rate of spectrum and combats inter-symbol interference （ISI） in multi-path fading channel. However, when there are frequency offsets during the signal transmission, the inter-carrier interference （ICI） is introduced, which significantly degrades the performance. The existing ICI self-cancellation schemes such as PCC-OFDM are not optimum to minimize the interference considering both noise and ICI. In this paper, a new metric named S1NR （signal-to-interference- and-noise ratio） is proposed. We discuss the optimization issue when a constant frequency offset exists and in time-varying channels. The optimum weighting-coefficient-pair （OWCP） is obtained, which maximizes SINR theoretically through the alternant iteration algorithm. Simulations show that the performance of OWCP-OFDM is better than that of PCC-OFDM, especially when the frequency offset is large. Although the ICI self-cancellation scheme suffers bandwidth inefficiency, from the simulation results we can also see that the performance of OWCP-OFDM is much better than that of the standard OFDM systems with the same bandwidth efficiency when a frequency offset exists. Moreover, since the redundant modulation provides the capability to suppress ICI as well as a receiving SNR gain, it can be considered as exchanging the bandwidth for SNR.     

西部地区人力资源开发对策探析

西部大开发,主要是开发两方面的资源：一方面是物质资源,另一方面是人力资源。其中,人力资源的开发为物质资源的开发提供人力和智力支持,是物质资源得到全面,高效、合理开发的重要前提。人力资源不同于物质资源的特性,决定了人力资源素质的高低对经济发展所产生的决定性影响。本拟在人力资源开发的重要性和紧迫性的基础上,对人力资源开发的对策进行探讨,以期引起人们对这方面同题的关注。     

SVD-LSSVM and its application in chemical pattern classification

INTRODUCTION Pattern classification is an important problem in the machine learning field and least squares support vector machine (LSSVM) proposed by Suykens is an easy and powerful tool for this problem (Suykens and Vandewalle, 1999a). Only a set of linear equations should be solved during training of an LSSVM, which makes it easy to be realized. LSSVM is based on structural risk minimization (SRM) rule, which en- hances its generalization ability. SRM rule requires that model …     

室内空气污染"在线和嵌入式"实时监测模块的开发应用

简述了室内空气品质实时监测的概念及其与精密的实验室测量的区别，前者主要应用于质量检验和仲裁，后者主要是实时阁值报警。重点介绍了作者开发的一种基于单片机和半导体气敏元件的室内空气污染实时监测模块及其应用，内容包括该模块的电路总体功能、传感器信号检测电路设计以及在2套民居的实测应用概况。     

面向一流人才培养的研究生教育质量评价方法初探--基于层次分析与模糊综合评判的指标体系研究

研究生教育在"双一流"建设中具有高端引领和战略支撑作用。要提升研究生教育质量,必须加强研究生培养质量保障体系建设,而构建研究生教育质量评价体系是其重要一环。为此,本文提出研究生教育质量评价的基本原则和价值取向,并据此研究设计涵盖学生发展、师资队伍、学校条件以及利益相关方满意度等4项一级指标、13项二级指标和91项三级指标的研究生教育质量综合评价方案。在此基础上,运用专家调查法对91项三级指标重要度进行0~5级综合评价,采用层次分析法对三级指标的权重进行科学赋权。同时,采用模糊综合评价方法对13项二级指标与4项一级指标进行权重分析与判断,进而给出一套完整的研究生教育质量综合评价指标体系,为科学评价面向一流人才培养的研究生教育质量提供参考和借鉴。     

Magnetic field and performance analysis of a tubular permanent magnet linear synchronous motor applied in elevator door system

A novel elevator door driven by tubular permanent magnet linear synchronous motor （TPMLSM） is presented. This TPMLSM applies axial magnet array topology of the secondary rod, air-cored armature windings and slotless structure of the forcer to improve the stability of the thrust. The influence of two major dimensions, the pitch and radius of the permanent magnet （PM）, on magnetic field was studied and the best values were given by the finite element analysis （FEA）. The magnetic field, back EMF and thrust of the motor were analyzed and the PM size was optimized to reduce the harmonic components of the magnetic field and improve the performance of the motor. Predicted results are validated by the experiment. It is shown that the performance of the motor and the novel elevator door system is satisfying.     

亚像素级激光光条提取及其激光平面标定应用(英文)

为了标定激光平面以实现三维形貌测量,提出一种亚像素级精度激光光条提取算法.该算法包括两侧边检测和中心线提取2个部分.首先,利用基于主成分角的渐进概率霍夫变换检测2条侧边并依赖该两侧边的距离获取光条宽度;然后,应用二维泰勒展式提取具有亚像素级精度的光条中心线并依据重建的三维坐标标定激光平面.实验结果表明,所提算法光条中心提取速度较快,平均约为78 ms/帧,光条平面共面误差较低,限制在0.3 mm以内.因而所提算法能够满足提取光条的两侧边和中心线的需要,且快速可靠、精度高和抗干扰能力强.