Investigation on wind energy-compressed air power system

Wind energy is a pollution free and renewable resource widely distributed over China. Aimed at protecting the environment and enlarging application of wind energy, a new approach to application of wind energy by using compressed air power to some extent instead of electricity put forward. This includes: explaining the working principles and characteristics of the wind energy-compressed air power system; discussing the compatibility of wind energy and compressor capacity; presenting the theoretical model and computational simulation of the system. The obtained compressor capacity vs wind power relationship in certain wind velocity range can be helpful in the designing of the wind power-compressed air system. Results of investigations on the application of high-pressure compressed air for pressure reduction led to conclusion that pressure reduction with expander is better than the throttle regulator in energy saving.     

“采桑”新解——兼谈《陌上桑》的主题

〕“采桑”在古代文学作品中,于表示采桑劳动过程的同时,亦有男女情爱之意蕴。这在《陌上桑》等诗中得到了很好的印证     

正确认识改革实践过程对人们思想的影响

伴随着改革的深化和社会主义市场经济体制的建立和逐步完善 ,我国社会从经济基础到上层建筑 ,都处在一个重大的变革时期。这场社会变革无论是深度还是广度都是前所未有的。因此 ,这场变革必然会引起人们精神世界的深刻变化。深入地研究和认识这些变化 ,对于分清主流和支流、正确与谬误 ,切实加强和改进思想政治工作不无意义。     

Prospective elementary teachers’ aesthetic experience and relationships to mathematics

Previous research has adopted various approaches to examining teachers’ and students’ relationships to mathematics. The current study extended this line of research and investigated six prospective elementary school teachers’ experiences in mathematics and how they saw themselves as learners of mathematics. One-on-one interviews with the participants were conducted, and their written reflections were collected. A grounded-theory approach and a framework for analyzing mathematics identities were adopted in data analysis. The findings showed that the participants’ development of obligations-to-oneself was associated with not only their opportunity to exercise conceptual agency but also their aesthetic experience with mathematics. Their views on themselves as learners of mathematics had cognitive, affective, and aesthetic dimensions. The findings suggest that teachers and students can engage in a reflection on their aesthetic involvement in doing mathematics. There is a need for a local theory of aesthetics in K-12 mathematics.     

What Constitutes Good Mathematics Teaching and How it Develops: Nine High School Teachers’ Perspectives

Scholars of decades past, current researchers, and various reform documents all deal, directly or indirectly, with the question of what constitutes good mathematics teaching. Often good teaching is situated in the context of broader educational goals, such as preparing literate citizenry. Researchers generally define good teaching implicitly with attention to various processes such as reasoning and problem solving. In a series of three interviews, we examined nine experienced and professionally active teachers’ views of good mathematics teaching and how it develops. The interviews were couched in the context of the teachers mentoring student teachers. In general, these teachers thought good teaching requires a sound knowledge of mathematics, promotes mathematical understanding, engages and motivates students, and requires effective management skills. Furthermore, the teachers felt that good teaching is developed from experience, education, personal reading and reflection, and interaction with colleagues. Experience was considered the primary contributor. The article compares and contrasts the teachers’ notions of good teaching with those of various scholars and researchers and positions stated in various reform documents.     

浅谈《合同法》的合同补缺规则

新颁布的《中华人民共和国合同法》就存有条款欠缺的合同制定了合同补缺的基本规则，通过约定补缺，推定补缺和法定补缺等规则的具体适用，使合同的内容趋于完整，合同的履行得以保证，从而维护了交易安全，提高了交易效率。     

What Can Institutional Research do to Help Colleges Meet the Workforce Needs of States and Nations?

Institutions of higher education are looked to by society as the training grounds and gatekeepers for college-trained workers. However, despite a long history of being viewed by many as unresponsive to labor force needs, the academy has not found ways of effectively meeting these demands, nor articulating why it is that they have difficulty doing so. This paper discusses how institutional researchers can help explain to campus administrators and others the role that institutions play in training individuals for the workplace, and why they cannot always quickly respond to and solve shortages of college-trained workers. The first section outlines what economic theory and research has to say regarding labor markets, how labor market shortages arise, and how students make decisions about which major to pursue. The last section describes problems institutional researchers face when using their skills with data to identify solutions to this problem. Using data from the state of New Hampshire, it will be shown that the data available to institutional decisionmakers can be out of date, inaccurate, and not particularly useful for designing policies that would enable an institution to respond to the labor needs of the economy.     

Going to action? A literature review on educational proposals in formal Environmental Education

The current state of the planet’s environmental deterioration calls for formal educational contexts to implement effective environmental proposals which nurture action competence. The aim of this paper is to examine the educational proposals in formal contexts that have been published in the two research journals of greatest impact on Environmental Education during the period 2008–2013, and to analyse how they contribute to the development of action competence. Special attention is paid to research (i) based on real participation by students; (ii) promotes reflection on the complexity of environmental issues; (iii) facilitates critical thinking; (iv) encourages autonomous and responsible decision-making and (v) involves communities. Our results show that these approaches can help improve the development of action-focused environmental education and bring to light a series of challenges for future research.     

Entering and exiting a teacher preparation program: What happens in between?

In determining whether graduates of the Master of Arts in Teaching (MAT) Program at Southern Oregon University were developing the necessary knowledge, skills, and dispositions to teach, faculty members found themselves examining their own practice. This is just what Goodlad (1988) suggested we do: clarify our own beliefs in order to better understand our teacher preparation program. We discovered that the development of the MAT program is primarily shaped by the people who teach within the program. Who we are as people, influences who we are as teachers and, who we are as teachers influences the nature of the teacher preparation program. This discovery underscored the importance of our efforts to steward the development of our students’ personhood as well as their knowledge and skills.