Enhanced auditory feedback for Korean touch screen keyboards

With the increasing popularity of touch screen mobile devices, improving the usability and the user experience while inputting text on these devices is becoming increasingly important. Most conventional touch screen keyboards on mobile devices rely heavily on visual feedback, while auditory feedback seldom includes any useful information about what is being inputted by the user. The auditory feedback usually simply replicates the sounds produced by a physical keyboard. This paper describes the development of an enhanced auditory feedback mechanism for a Korean touch screen keyboard called the enhanced auditory feedback (EAF) mechanism. EAF has subtle phonetic auditory feedback generated using the acoustic phonetic features of human speech. While typing with EAF, users can acquire non-invasive auditory clues about the keys pressed. In this work, we compare conventional auditory feedback for a touch screen keyboard used in touch screen mobile devices with that of EAF and explore the possibility of using enhanced auditory feedback for touch screen keyboards.     

Synchronization of Instantaneous Coupled Harmonic Oscillators With Communication and Input Delays

This paper investigates the synchronization issue of instantaneous coupled harmonic oscillators with communication and input delays. A distributed synchronization algorithm is proposed for such oscillator systems, and some general algebraic criteria on exponential convergence are established for the algorithm. The main contributions of the present investigations include: (i) the directed network topology is first considered in the case of instantaneous interaction; (ii) both the time‐varying communication and input delays are simultaneously addressed; (iii) the effects of communication and input delays on synchronization performance of coupled harmonic oscillators are discussed. It is shown the communication delays have a more important impact than the input delays on determining synchronization dynamics of coupled harmonic oscillators. Explicitly, in absence of communication delays, coupled harmonic oscillators can achieve synchronization oscillatory motion, whereas, so long as communication delays are nonzero at infinite multiple impulsive times, its synchronization (or consensus) state is zero. Finally, numerical examples demonstrate the obtained theoretical results.     

嵌入式Web的远程数据交互式设计

随着物联网的发展,越来越多的嵌入式系统与网络相结合。要实现设备与网络之间数据互联互通,必须解决嵌入式系统与Web之间数据交互的问题。本文基于CGI/SSI和XMLHTTPRequest两种方式,实现了嵌入式Web与浏览器之间的动态数据交换。通过实际运行测试,性能稳定可靠。     

Designing a Special Library's Intranet for an Engineering Audience

ABSTRACT

Designing a successful library Web site for an engineering audience means researching how engineers find and use information. It also requires the special librarian to conduct usability tests to determine what is and isn't working on the site. The special librarian is more than simply a librarian, he or she must be able to take the research and the test results and either build the Web site or make sure the site is built by a team. The librarian must be able to play several roles: researcher, tester, project leader, and Web manager. The more successful the librarian is at involving users in site design, the more used and usable the site will be. This article describes one librarian's experience with designing a special library Intranet. It also includes an extensive bibliography of related articles.     

EDITORIAL

The process undertaken by an information seeker, in order to form relevance decisions regarding documents, is defined as “Document Triage.” To better facilitate users’ needs in their triage activities, interactive interfaces have begun to evolve within on-line academic repositories. In order to complement current work on interface design and interaction, and produce custom guidelines to inform the creation of triage interfaces, we examine how interfaces that alter the document presentation and structure affect information seekers’ visual and navigational attention. We present a set of heuristics for both creating and evaluating such interfaces.     

Artemis-COOR:一个基于Agent的软件动态协同支撑平台

针对开放网络环境下软件协同应用需求,本文提出了一种基于Agent的软件动态协同模型。该模型以软件实体的Agent封装为基础,通过Agent运行时刻重解释以软件体系结构表达的协同逻辑和Agent间的多模式交互技术,实现对动态协同的支持。面向此概念模型,给出了相应的软件动态协同支撑平台Artemis-COOR,该平台在"非侵入式"A-gent封装、多模式交互支撑和软件体系结构动态演化支撑等方面形成了一定的技术特色。最后,给出以水雨情会商系统为例的演示性应用,展示了上述技术的可行性和有效性。     

Electrochemical DNA biosensor for the detection of interaction between di[azino-di(5,6-azafluorene)-κ-NN′]dichlormanganous and DNA

A new Mn(II) complex of MnL₂Cl₂ (L = azino-di(5,6-azafluorene)-κ²-NN′) was synthesized and utilized as an electrochemical indicator for the determination of hepatitis B virus (HBV) based on its interaction with MnL₂Cl₂. The electrochemical behavior of interaction of MnL₂Cl₂ with salmon sperm DNA was investigated on glassy carbon electrode (GCE). In the presence of salmon sperm DNA, the peak current of [MnL₂]²⁺ was decreased and the peak potential was shifted positively without appearance of new peaks. The binding ratio between [MnL₂]²⁺ and salmon sperm DNA was calculated to be 2:1 and the binding constant was 3.72 × 10⁸ mol² L⁻². The extent of hybridization was evaluated on the basis of the difference between signals of [MnL₂]²⁺ with probe DNA before and after hybridization with complementary sequence. Control experiments performed with non-complementary and mismatch sequence demonstrated the good selectivity of the biosensor. With this approach, a sequence of the HBV could be quantified over the range from 1.76 × 10⁻⁸ to 1.07 × 10⁻⁶ mol L⁻¹, with a linear correlation of r = 0.9904 and a detection limit of 6.80 × 10⁻⁹ mol L⁻¹. Additionally, the binding mechanism was preliminarily discussed. The mode of interaction between MnL₂Cl₂ and DNA was found to be primary intercalation binding.     

An autonomous educational mobile robot mediator

So far, most of the applications of robotic technology to education have mainly focused on supporting the teaching of subjects that are closely related to the Robotics field, such as robot programming, robot construction, or mechatronics. Moreover, most of the applications have used the robot as an end or a passive tool of the learning activity, where the robot has been constructed or programmed. In this paper, we present a novel application of robotic technologies to education, where we use the real world situatedness of a robot to teach non-robotic related subjects, such as math and physics. Furthermore, we also provide the robot with a suitable degree of autonomy to actively guide and mediate in the development of the educational activity. We present our approach as an educational framework based on a collaborative and constructivist learning environment, where the robot is able to act as an interaction mediator capable of managing the interactions occurring among the working students. We illustrate the use of this framework by a 4-step methodology that is used to implement two educational activities. These activities were tested at local schools with encouraging results. Accordingly, the main contributions of this work are: i) A novel use of a mobile robot to illustrate and teach relevant concepts and properties of the real world; ii) A novel use of robots as mediators that autonomously guide an educational activity using a collaborative and constructivist learning approach; iii) The implementation and testing of these ideas in a real scenario, working with students at local schools.

环绕智能研究综述

新一代的计算模式代替PC时代的计算模式是不可逆转的发展趋势,理解AmI的概念、应对AmI提出的技术与非技术挑战非常关键.首先讨论了环绕智能概念的起源,并比较了AmI概念与Ubiquitous Computing等相关概念的异同.然后综合分析了AmI领域的国内外研究现状,提出了一种针对AmI领域的研究内容的层次划分方法,并且讨论了AmI研究面临的技术挑战.随后,分析比较了世界IT强国针对AmI远景制定的工作计划,总结了AmI研究近期研究热点和未来发展趋势.     

网页制作与电子商务网站安全

网页制作是目前比较流行的一种行业,它已经渗透到社会的各个角落,而电子商务网站中网页制作技术应用的最多,该文主要从电子商务网站的安全隐患、网站安全现状、网站安全的措施与解决方案、电子商务发展等方面进行探讨,尤其对于网站安全的考虑,在编写网页代码时,应注意的一些防范方法的介绍,以促进人们对网页制作中的安全防范技术的了解。