甚高频语控电路的开发及应用

文中主要从甚高频语音自动播发电路的工作原理、设计思路及实现方式进行研究,并对其在长江沿线甚高频各类设备上的实际应用进行了探讨。

浅谈智能语音技术在自适应语控智能会议室中的应用与价值

随着我国科学技术的发展,各种新兴技术在各行各业中的应用,大大加快了我国的科技化发展进程,人们越来越意识到,先进的科学技术对于推动企业乃至国家发展的重要性,“人工智能”这一走在国际研究尖端的科学技术,被越来越多的人发现并关注,使我国掀起了新一轮的科技研究热潮。本文将针对智能语音技术,通过分析其在自适应语控智能会议室中的应用,从多个角度展开分析与讨论,探索智能语音技术的应用价值与重要意义。

面向事件的多语平行语料库构建研究

讨论了面向北京奥运的多语语料库建设中的若干基础问题。提出了面向事件、多领域融合的语料收集原则,制定了具有分类信息的标注规范,初步建立了具有近七万句对的可控多语语料库。

刍议英语课堂教学中的“大道至简”

改变教多而学少，克服课堂低效，是课堂教学改革的应有之义。英语课堂因教而在，教师的引领示范、语言输入和信息铺垫必不可少，但教师切不可完全垄断话语权，以教盖学地弄简成繁。教与学的生态因教的简约而成，简约之利在于让学，从而良性促学。本文鉴于英语课堂教学中教的“繁琐”，探讨了适当简约施教的积极意义，并从教学话语把控、课型与环节整合以及训练时限等层面尝试性地提出了简约施教以最大限度解放学生英语学习力的策略。

智能会议系统的自适应性

为提高会议系统性能指标和使用效果,经多年努力研究开发出一套有效的解放方法,并申请两项实用新型专利"一种精准拾音教学观摩扩声系统"和"一种抗噪声指向性传声器"。讲述了自适应性的概念,进一步介绍智能会议系统自适应性需求。

Comparative Study on VQ-Based Efficient Mandarin Speech Recognition Method

A VQ based efficient speech recognition method is introduced, and the key parameters of this method are comparatively studied. This method is especially designed for mandarin speaker dependent small size word set recognition. It has less complexity, less resource consumption but higher ARR (accurate recognition rate) compared with traditional HMM or NN approach. A large scale test on the task of 11 mandarin digits recognition shows that the WER(word error rate) can reach 3 86%. This method is suitable for being embedded in PDA (personal digital assistant), mobile phone and so on to perform voice controlling like digits dialing, name dialing, calculating, voice commanding, etc.

Development of tool-path generation module for 5-axis control machining of impellers

An impeller is difficult to machine because of severe collision due to the complex shape,overlapping and twisted shape of the impeller blades.So,most computer aided manufacturing(CAM)software companies have developed CAM module for manufacturing impeller according to their CAM software.But these dedicated modules are difficult to use for inexperienced users.The purpose of this work is to develop a tool-path generation module for impellers.For this purpose,it is based on Visual Basic language and used CATIA graphical environment.The result of simulation for generated tool-path by the module is satisfactory.And it has slow processing speed compared to other commercial modules,but it is easy to use.

Study on the Practice Teaching Quality Guarantee and Monitoring System of English Program in Local Colleges and Universities

In today＇ s society, there are increasingly more new requirements on English education in local colleges and universities, and also there are some problems to be exposed. A great difference exists between the language application ability of learners and the actual conditions of teaching; great investments are put by both schools and teachers into teaching, but the teaching quality is not improved and also the teaching effect is not very ideal; the pass rate and excellent rate of CET4 and CET6 are pursued by many Chinese colleges and universities, and the strategy with an ocean of paper and examination-oriented intensive training methods are even applied, so that the internal rules of language teaching are seriously damaged.

Foreign Language Enjoyment and Anxiety:Associations With General and Domain-Specific English Achievement

Recent research has confirmed the predictive effect of general foreign language(FL) achievement on Foreign Language Enjoyment(FLE) and Foreign Language Classroom Anxiety(FLCA).However,few studies have examined the effect of domain-specific language achievement in shaping FL learning emotions.The present study thus aims to examine how FLE and FLCA are linked to overall FL achievement and self-perceived achievement in six different domains across listening,speaking,reading,writing,vocabulary,and grammar.A total of 1,415 Chinese senior secondary students participated in the questionnaire survey.Regression analyses showed that 1) both FLE and FLCA were predicted more by self-perceived general English proficiency,while less by actual English achievement;2) perceptions of speaking and grammar competence were significant predictors of both emotions;3) perceived reading competence predicted FLE significantly but not FLCA;and that 4) perceptions of listening,writing,and vocabulary competence predicted neither FLE nor FLCA.The implication is that domain-specificity should be taken into consideration in future explorations of FL emotions.

Enhancement of Voice Quality and Bit-rate Reduction by Prosodic Control in G.723.1 Vocoder

Speech coding techniques have been studied not truly to reduce the complexity and bit rate but also to improve the sound quality. CELP type vocoder, used as standard, supports the great stead quality even low bit rate. In this paper, the preprocessing of input speech to reduce the bit rate is different from the conventional vocoder. Different kinds of parameter are used for the preprocessing compared with the other parameters to t＇md the more appropriate parameter for the vocoder. The Parameters are used to synthesize the speech not to encode or decode for coding technique so we proposed the simple algorithm not to have the influence on the processing time or the computation time. The parameters in the preprocessing step are speaking rate, duration, and PSOLA technique.

Automated pattern-directed refactoring for complex conditional statements

Complex conditional statement is one of the bad code smells, which affects the quality of the code and design of software. In the proposed approach, two commonly-used design patterns for handling complex conditional statements are selected, and they are the factory method pattern and the strategy pattem. Two pattern-directed refactoring approaches based on the two design patterns are proposed. Each approach contains a refactoring opportunities identification algorithm and an automated refactoring algorithm. After parsing the abstract syntax tree generated from source code, the refactoring opportunities are identified effectively and automatically. Then, for candidate code, refactoring algorithms are executed automatically, which are used to simplify or remove complex conditional statements. By empirical analysis and quality assessment, the code after refactoring has better maintainability and extensibility, and the proposed approach for automated pattern-directed refactoring succeeds to reduce code size and complexity of classes.

Geospacial information utilized under the access control strategy

This paper introduces a solution to the secure requirement for digital rights management （DRM） by the way of geospacial access control named geospacial access control （GeoAC） in geospacial field. The issues of authorization for geospacial DRM are concentrated on. To geospacial DRM, one aspect is the declaration and enforcement of access rights, based on geographic aspects. To the approbation of digital geographic content, it is important to adopt online access to geodata through a special data infrastructure （SDI）. This results in the interoperability requirements on three different levels： data model level, service level and access control level. The interaction between the data model and service level can be obtained by criterions of the open geospacial consortium （OGC）, and the interaction of the access control level may be reached by declaring and enforcing access restrictions in GeoAC. Then an archetype enforcement based on GeoAC is elucidated. As one aspect of performing usage rights, the execution of access restrictions as an extension to a regular SDI is illuminated.

Interaction of Units and Research Methods of Control Performances of Distributed Manufacturing Information System

In order to analyze the function demand of the distributed manufacturing information system as well as its control demand, and eliminate information ambiguity among system units to integrate semantics, the abstract Agent model and computational structure of each unit was presented based on flexible coupling automata. The autonomy of each unit was investigated in this foundation. The system unit was described using the Web Ontology Language (OWL) ontology. And the system semantics was also integrated. On these basics the communication among the system units was analyzed with an example of interaction between a machine and a warehouse. The control performances of information system units were investigated using Boolean matrix as a substitute for traditional process in RW theory, which reduced the computational complexity. This work established the foundation for the demand analysis, design and development of the distributed manufacture information system.

A PSL Ontology-based Shop Floor Dynamical Scheduler Design

Due to the complex,uncertainty and dynamics in the modern manufacturing environment,a flexible and robust shop floor scheduler is essential to achieve the production goals.A design framework of a shop floor dynamical scheduler is presented in this paper.The workflow and function modules of the scheduler are discussed in detail.A multi-step adaptive scheduling strategy and a process specification language,which is an ontology-based representation of process plan,are utilized in the proposed scheduler.The scheduler acquires the dispatching rule from the knowledge base and uses the build-in on-line simulator to evaluate the obtained rule.These technologies enable the scheduler to improve its fine-tune ability and effectively transfer process information into other heterogeneous information systems in a shop floor.The effectiveness of the suggested structure will be demonstrated via its application in the scheduling system of a manufacturing enterprise.

Effective Learner-Lecturer Interaction Working With a Virtual Learning Environment

Using the Internet to learn a language creates wide opportunities to enhance learning （Association of teachers of English in Catalonia （APAC）, 2010）. The Internet activities promote learners＇ self-monitoring ability, encourage the use of multimedia and network technology, and develop students＇ cooperation and participation. During the latest years, there have been many changes in education as these new technologies, including VLEs （Virtual Learning Environments）, which have become an important part in the teaching/learning process. According to Tech Terms Computer Dictionary （2012）, VLE is a virtual classroom where teachers and students communicate. VLEs have evolved as at an early stage, they were only ways of transmitting information： Teachers uploaded the multimedia resources and students read this information. At a higher stage, VLEs have become interactive. This means that students become active. We have designed a virtual environment where students, weekly, must contribute their opinions and comments in response to a required activity uploaded by the teacher. In this paper, we describe this weekly task and analyze students＇ opinion about this planned activity. The students become an active subject in this field. In this paper, we show how VLEs are no longer a means of transmitting information but a means of interaction as well as a way of motivating our students to be involved in their learning process

How to Conduct Emotional Education Analysis in College English Teaching

The so-called emotional education is the education of cultivating students＇ social emotion, promoting their self-control ability and promoting students to correctly cope with the relationship between themselves and surrounding environment. In college English teaching, implementing emotional education not only can teach knowledge to students, but also can help others to form perfect personality, to promote all-round development of students. However, fi＇om the present situation, in college English teaching, it generally exists ＂focusing more on knowledge and less on emotion＂ phenomenon, which doesn＇t conform to the requirement of quality education. In college English teaching, conducting emotional education is necessary and imminent.

Chinese English Learners＇ Text Reading Strategy Research

Reading strategies are different from identifying the words, but a kind of metacognitive activity based on the monitoring mode. This paper will explore Chinese English learners＇ text reading strategies according to the cognitive process of the reading, hoping for providing some suggestions and references for Chinese college students to learn English well and improve the text reading ability.

THE INFLUENCE OF ACHIEVEMENT ATTRIBUTIONS ON SELF-REGULATED LANGUAGE LEARNING BEHAVIORS

This study intends to explore the effects of achievement attributions on self-regulated language learning behaviors. The study was carried out by means of a questionnaire which includes two parts, that is, achievement attributions scale and self-regulated language learning behaviors scale. 112 undergraduate students participated in the study. The results of data analysis proved that achievement attribution does influence self-regulated language learning behaviors and that different achievement attributions have different effects on self-regulated language learning behaviors. Based on the results implications for foreign language teaching are suggested.

SELF-REGULATION IN COLLEGE ENGLISH WRITING

本文是关于在非英语专业大学英语写作教学中引入自我监控理论,帮助受试对自己的写作过程进行自我监控,以便提高大学生英语写作水平的一项实证研究。本研究以非英语专业102名一年级学生作为受试,分为实验班和控制班进行研究。研究结果表明,通过对写作过程的自我监控,受试的英语写作水平得到了提高。受试通过运用诸如annotation、graphic organizer、mnemonics、checklists等自我监控策略,不仅只关注语言表层错误,而且开始关注文章内容、文章结构等整体因素。

THE ROLE OF AWARENESS IN CHINESE STUDENTS' LEARNING OF ENGLISH PREPOSITIONAL STRUCTURE

This paper is a quantitative analysis of the role of awareness in English prepositional structure learning in relation to Schmidt's noticing hypothesis about processing the target language form. The purpose is to identify the long-perplexing problem that Chinese students are reluctant to produce English prepositional structure in their writing. The research is a controlled experiment in a translation-based setting which provides empirical support for the claim that the level of awareness plays a crucial role in the learners' intake and written production the target form. The implication is that a more explicit pedagogical approach may be necessary.