A Review of Current Researches on Blast Load Effects on Building Structures in China

The damages of building structures subjected to multifarious explosions cause huge losses of lives and property. It is the reason why the blast resistance and explosion protection of building structures become an important research topic in the civil engineering field all over the world. This paper provides an overview of the research work in China on blast loads effect on building structures. It includes modeling blast shock wave propagation and their effects, the dynamic responses of various building structures under blast loads and the measures to strengthen the building structures against blast loads. The paper also discusses the achievements and further work that needs be done for a better understanding of the blast loads＇ effects on building structures, and for deriving effective and economic techniques to design new or to strengthen existing structures.     

爆炸冲击波在城市地下通道内传播规律的数值模拟

城市地下过街通道是城市重要的交通系统组成部分,也经常会成为恐怖分子爆炸袭击的对象。为了更好的了解爆炸冲击波在地下过街通道中的传播规律,本文通过数值模拟分析了13KG炸药在通道爆炸后冲击波的传播。分析过程中分别考虑了炸药起爆位置及通道顶盖对冲击波传播的影响。分析结果表明当TNT在通道内起爆后,通道顶部的角落将受到更大的冲击波压力作用,当冲击波从出口向外传播时将发生明显的射流现象;当通道出口有顶盖时,炸药在出口的起爆将明显加强通道内部及出口梯道的压力峰值。     

Numerical Simulation, of Response of SRC Columns Subjected to Blast Loading

The dynamic characteristics and failure modes of steel reinforced concrete （SRC） columns subjected to blast loading are complicated because of the transient stress wave in the SRC columns and the interaction between steel and concrete. This paper presents a numerical simulation of the response of SRC columns subjected to blast loading using hydrocode LS-DYNA. In the numerical model, a sophisticate concrete material model（the Concrete Damage Model）is employed with consideration of the strain rate effect and the damage accumulation. An erosion technique is adopted to model the spalling process of concrete. The possible failure modes of SRC columns are evaluated. It is observed that the failure of SRC columns subjected to blast load can generally be classified into three modes, namely, a direct failure in concrete body due to the stress wave, a transverse shear failure near the support sections due to the high shear force, and a flexural failure pertaining to large local and global deformation of the reinforcing steel.     

在全面建设小康社会进程中促进人的全面发展

人的全面发展是社会发展的最高目标。在全面建设小康社会进程中促进人的全面发展,既需要坚实的物质基础、政治保证和文化环境;生态文明、和谐社会的建设也不可缺少。只有社会诸要素的协调发展,才能努力促进人的全面发展———全面建设小康社会的目标之一。     

Design and implementation of multi-campus,modular master classes in biochemical engineering

The Master of Science in engineering technology: biochemical engineering is organised in KU Leuven at four geographically dispersed campuses. To sustain the Master's programmes at all campuses, it is clear that a unique education profile at each campus is crucial. In addition, a rationalisation is required by increased cooperation, increased exchange of lecturers, and increased student mobility. To achieve this, a multicampus education system for the M.Sc. in engineering technology: biochemical engineering was developed by offering modules that are also available for students of other campuses. Such a module is primarily based on the research expertise present at the campus. In the development, special attention has been given to the optimal organisation of the modules, evaluation, required modifications of the current curricula, and the practical consequences for students following the module at another campus. Even in the first year of implementation, around 30% of the students followed a multicampus module, which indicates the potential success of the multicampus concept described here.     

Scale of Academic Emotion in Science Education: Development and Validation

Contemporary research into science education has generally been conducted from the perspective of ‘conceptual change’ in learning. This study sought to extend previous work by recognizing that human rationality can be influenced by the emotions generated by the learning environment and specific actions related to learning. Methods used in educational psychology were adopted to investigate the emotional experience of science students as affected by gender, teaching methods, feedback, and learning tasks. A multidisciplinary research approach combining brain activation measurement with multivariate psychological data theory was employed in the development of a questionnaire intended to reveal the academic emotions of university students in three situations: attending science class, learning scientific subjects, and problem solving. The reliability and validity of the scale was evaluated using exploratory and confirmatory factor analyses. Results revealed differences between the genders in positive-activating and positive-deactivating academic emotions in all three situations; however, these differences manifested primarily during preparation for Science tests. In addition, the emotions experienced by male students were more intense than those of female students. Finally, the negative-deactivating emotions associated with participation in Science tests were more intense than those experienced by simply studying science. This study provides a valuable tool with which to evaluate the emotional response of students to a range of educational situations.     

关于解决乳化炸药发泡后效方法的分析

乳化炸药生产中采用的化学发泡敏化方式，往往会产生后效问题，给产品的质量带来很大的影响，提出了对克服发泡后效的方法，并对其进行了理论上的分析论证，通过生产中的实验，证明是切实可行的，并对生产工艺进行了调整，解决了发泡后效问题，提高了产品质量，取得了良好的效果。     

Evaluating the effectiveness of university widening participation activities in rural Australia

This article explores the effect university widening participation activities have had in improving access to university of students from rural government-run schools in New South Wales, Australia. An effective effort to evaluate the success of widening participation programs in rural Australia, specifically New South Wales, has not been achieved to date. This article addresses this issue in three distinct ways. First, previous efforts to evaluate widening participation effectiveness are explored and their successes and failings are described. Second, a method to rigorously evaluate university-run outreach programs in Australia’s unique socio-cultural context is constructed and explained. Third, this method is employed using a sample of Australian rural schools to evaluate outreach effectiveness. A mixed-method design combining multilevel growth models and in-depth interviews of careers advisors revealed teacher support of university outreach presence in schools did not necessarily translate to an opinion of outreach effectivity in raising university access levels. This was supported by quantitative analyses showing widening participation efforts in rural New South Wales have had little to no effect on the progression of rural students to university between 2010 and 2016.     

Teacher Morale in Western Australia: A Multilevel Model

As part of a larger longitudinal study of Western Australian high schools, 212 teachers were surveyed about their perceptions of the school in which they teach and the management of that school. In particular, teachers responded to questions about the school environment, their morale and the organisational health of the school, and they were asked some self-concept and teaching efficacy questions. A multilevel model was used to investigate the effects of these and other school characteristics on teacher morale (the dependent variable), while accounting for school level differences. This study demonstrated that teacher morale varied between teachers and between schools, with school environment explaining 54% of the variability in morale. That is, when the school environment was positive, teacher morale was higher. The implications of this finding point to the importance of both improving the school environment and teacher morale in order to enhance the health of schools. This is only achieved when teachers believe that their school is improving and has a positive climate. This revised version was published online in July 2006 with corrections to the Cover Date.     

Examining the evidence from TIMSS: Gender differences in Year 8 science achievement in Australia

Australia's continuing participation in international science studies such as TIMSS provides a useful lens through which to monitor achievement in science over time. Gender differences in science were not evident in the early years of TIMSS but appear to be growing. This article examines gender differences in science achievement in early secondary schooling in Australia using data from the TIMSS 2003 study. The aim is to explore the cultural, social, structural and institutional factors that may differentially influence science achievement, with the aim of identifying which are more important for males and for females.     

Environmental knowledge and behavioural outcomes of tourism students in Australia: towards testing a range of mediation and moderated mediation effects

Our study examines the environmental knowledge (EK) and behavioural outcomes of students studying ecotourism in Sydney, Australia. Three competing models were tested to examine the relationships between EK, participation intention (PI) in ecotourism programs, landscape likeability (LL) and social interactions (SI); and the study also tested the moderated mediation influence of gender differences and relationship length on mediators. Partial least squares-based structural equation modelling (PLS-SEM) was used to analyse the data collected from 173 residential tourism students. Key findings suggest whilst LL and PI are significant outcomes of EK, LL has a stronger mediating effect on PI compared to SI; and all mediation effects are further moderated by gender differences. However, only Model 3 confirms the moderating effect of the length of relationship. Noting the key role that EK plays in influencing their PI and LL, our study also suggests ways of developing the tourism students’ EK, through various experiential and pedagogical interventions.     

School middle leaders in Australia,Chile and Singapore

ABSTRACT

The paper brings together for the first time a sequence of six studies, from the one university faculty, on middle leaders from Australia, Chile and Singapore. All studies followed a consistent approach using multiple-perspective interviews. Middle leaders were seen to be key personnel in improving teaching and learning, and when they have well-defined roles and sufficient expectation and support were seen to be impacting on student outcomes. Yet too often they had limited impact, did not receive sufficient support from senior leaders, and worked in school structures that hindered their work.     

澳大利亚维多利亚州学校本位学徒制浅析

澳大利亚维多利亚州学校本位学徒制在培训时间、运行流程、利益相关者职责、理论与实践学习等方面具有独特性。借鉴维多利亚州学校本位学徒制的经验,全面推动我国现代学徒制发展,需要加强顶层制度建设,完善现代学徒制相关政策,树立以人为本的教育理念,维护学生权益,健全学历证书和职业技能等级证书互通互认机制。     

Teacher,classroom, and student growth orientation in mathematics: A multilevel examination of growth goals,growth mindset,engagement, and achievement

This study examined associations between student- (N = 1414), classroom-, and teacher (N = 91) growth orientation and mathematics engagement and achievement using a multilevel model. Results demonstrated positive associations between student growth orientation and mathematics outcomes and positive associations between classroom and teacher growth orientation and mathematics achievement. There was also a marginally significant interaction effect between classroom and teacher growth orientation on classroom engagement. Findings hold relevance for educational interventions surrounding growth constructs and teachers’ personal growth orientation.     

Praxis,educational development and the university sector in Australia

In this article, we utilise recent theorising on praxis and educational development to explore how academics in universities can foster public, institutional and more personal development, even as they are challenged by what are sometimes described as more ‘managerial’ and ‘neoliberal’ conditions. The research draws upon a variety of sources of data, including publicly available correspondence on the university sector in Australia, interviews with colleagues, and personal reflective journals. These data reflect three instances of educational praxis development in the Australian university context, and at three scales/levels: nationally; unit-wide (university/faculty/institute); and sub-unit/individually. The findings reveal such development in the form of: academics using mainstream media to inform the general public about the nature of university industrial relations and funding at a national level; junior and senior academics collaborating and engaging in mentoring practices to build institutional research capacity at a university/institutional level; and, individual academics meeting to develop individual teaching practice. Through explicating the characteristics and value of educational development for and as praxis, we provide resources for hope for better understanding how the work of universities, including their broader mission to inform the public, might be enacted more educationally.     

Students’ reaction to classroom discipline in Australia,Israel, and China

This study investigates the extent to which students from Australia, Israel, and China report that their teachers’ classroom disciplinary behaviour affects their attitudes towards schoolwork and the teacher. They also report how justifiable a teacher's intervention appeared. In all three settings, both punishment and aggression relate significantly to the level of students’ distraction and negative affect towards the teacher. Teachers’ recognition of responsible behaviour and discussion with students relate to less distraction and greater belief that the intervention was necessary. Hinting and the involvement of students in classroom discipline decision making relate to a stronger belief that the disciplinary actions taken are warranted. Implications are discussed.     

Evolution and Contingency: Poetry,Curriculum and Culture in Victoria,Australia

This article explores the changing place of poetry studies in the broader English curriculum of Victoria, Australia. Its focus is on how students learning to become English teachers engage with poetry studies. Setting this problem within the context of pedagogical theory and evidence about the evolving Victorian curriculum, we have interviewed six first‐year students to explore their perspectives on the study of poetry. A clear finding is that exposure to the study of poetry is very limited in Australia’s secondary school system. A more surprising finding is that students do not clearly recognize their exposure to poetry studies as such.     

Assessment for learning in the accountability era: Queensland, Australia

Developments in school education in Australia over the past decade have witnessed the rise of national efforts to reform curriculum, assessment and reporting. Constitutionally the power to decide on curriculum matters still resides with the States. Higher stakes in assessment, brought about by national testing and international comparative analyses of student achievement data, have challenged State efforts to maintain the emphasis on assessment to promote learning while fulfilling accountability demands. In this article lessons from the Queensland experience indicate that it is important to build teachers’ assessment capacity and their assessment literacy for the promotion of student learning. It is argued that teacher assessment can be a source of dependable results through moderation practice. The Queensland Studies Authority has recognised and supported the development of teacher assessment and moderation practice in the context of standards-driven, national reform. Recent research findings explain how the focus on learning can be maintained by avoiding an over-interpretation of test results in terms of innate ability and limitations and by encouraging teachers to adopt more tailored diagnosis of assessment data to address equity through a focus on achievement for all. Such efforts are challenged as political pressures related to the Australian government's implementation of national testing and national partnership funding arrangements tied to the performance of students at or below minimum standards become increasingly apparent.     

Integrating Farm Production and Natural Resource Management in Tasmania,Australia

Abstract

This paper reports on the social learning from a project aimed to increase the knowledge and capacity of a group of farmers in Tasmania, Australia, to reduce the impacts of intensive agriculture on soil health and waterways, and to optimise the efficient use of on-farm inputs. The plan-do-check-review cycle adopted in this project required the farmers to assess current management practices, identify where to make changes, implement changes and monitor for improvements. The success of the project was due to careful attention to social processes as well as technical input. The combination of group activities with individual mentoring and one-to-one advice was key to the success of this project in enabling farmers to undertake on-farm action.

There is value in social learning that included developing relationships, using one-to-one contact and group workshops together with expert input when working with farmers to tackle some difficult and complex interrelated natural resource management and production issues. Sufficient time must be allowed for the process of facilitating good practice in natural resource management, particularly when addressing systemic environmental impacts. Practical operational recommendations are presented on communication, feedback, focus of activities and meeting content, as these will be useful to other project officers and facilitators working with farmer groups.     

澳大利亚维多利亚州基础教育体育课程简介

对澳大利亚维多利亚州基础教育学校体育课程的标准、目标、内容、实施和评价方式进行介绍,分析澳大利亚基础教育体育课程的优势,探寻完善我国体育课程的方法。