“添补法”在物理学中的应用

把一特殊的方法─—添补法 ,应用于“力学”及“电磁学”中 ,从而使一些复杂的问题变得简单     

Retirement as a career transition in ballet dancers

This paper discusses ballet dancers’ retirement, looking at the reasons for ending a performing career and their rehirement to an alternative role(s). The findings, explore different dimensions of the reasons for retirement. It attempts to investigate and nurture alternative thoughts on chronological age, in the context of ballet dancers’ retirement. Semi-structured interviews were conducted with 14 international ballet dancers. A qualitative approach was adopted through Interpretative Phenomenological Analysis (IPA), and tenets of Grounded Theory. Practical implications for career guidance practitioners are addressed in the final section.     

Transition to the School Playground: An intervention programme for nursery children

From an ecological perspective, this paper presents selective findings based on practitioner action research which is deliberately written in the first person. The focus is the transition from nursery playground to the school playground of 13 nursery children, all 4-years-old. The paper outlines the first 4-week cycle of action of a 13-week intervention programme. The programme aimed at promoting social and emotional development so that the children became more adaptive to challenges in the new context of the school playground. The findings reveal that process and connectivity of the programme promoted a sense of belonging in which the children reciprocally nurtured each other, acknowledged and recognised feelings and formed friendships so that when they started school they became more resilient within the school playground. The findings also highlight areas of vulnerability which need to be addressed concerning school routines and very young children.     

磁粉离合器在小汽车差速系统中的应用

现有的差速器在汽车中存在差速不差力,结构复杂,加工成本高,维修难等问题.经过研究,运用磁粉离合器恒力矩运行的特性以及结构简单,制造成本低,运行可靠,控制方便,差速也差力的优点,对小汽车差速器进行了设计.     

MRS study on lentiform nucleus in idiopathic Parkinson''s disease with unilateral symptoms

Objective: To investigate changes in magnetic resonance spectroscopy (MRS) of lentiform nucleus during the early stage of Parkinson's disease. Methods: Twenty-five patients with idiopathic Parkinson disease with unilateral symptoms (IPDUS) and 25 healthy volunteers were enrolled in this study. MRS of the lentiform nucleus in each patient was taken and then concentrations of N-acetylaspartate (NAA), Creatine (Cr) and Choline (Cho) were calculated. Results: Compared to that in the control, NAA/(Cho Cr) was significantly lower in the lentiform nucleus contralateral to symptoms and even that in the ipsilateral side in IPDUS patients (all P＜0.05); while there was no difference between the two sides in the healthy volunteer (P＞0.05). The ratio of NAA/(Cho Cr) ipsilateral to the sympatomatic side of the patient was also lower than that of the control (P＜0.05). Conclusions: there might be some changes with MRS on the lentiform nucleus during the early stage of idiopathic Parkinson's disease with unilateral symptom. MRS may be one of the reliable methods for early or even sub-clinical diagnosis.     

Students’ peer relationships and their contribution to university adjustment: the need to belong in the university community

Whilst new friendships and an active social life are commonly discussed features of ‘being a student’, there is limited empirical research that has quantitatively studied the contribution that social factors play in students’ university experience. Research that has been conducted shows that belonging and social integration are important factors in successful transition to university, and subsequent retention. This article presents research into students’ social relationships at university, their attachment to the university, and how these elements link to university adjustment. Undergraduates (N = 135) completed questionnaires measuring their attachment to university peers, attachment to the university, experiences of problematic peer relationships and quality of adjustment to university life. Students who reported strong attachment to their peers also demonstrated higher levels of adjustment to university life and attachment to their university. Students who reported difficulties in their relationships with other students had lower levels of peer attachment and university adjustment. Attachment to university peers was the strongest predictor of university adjustment, followed by attachment to the university. The research highlights the role of social relationships in institutional belonging, and the importance of nurturing peer relationships and institutional affiliation to create a positive student experience.     

高速漏磁检测中噪声消除方法的研究

高速漏磁检测中缺陷的信号易被噪声掩盖,采用自适应滤波消除相关噪声,并采用小波软阈值消噪方法消除残余系统噪声,可有效识别被噪声掩盖的信号．     

首钢生产区颗粒物的磁学性质研究

首都钢铁公司在炼焦、发电、烧结、炼铁、炼钢、轧钢等生产过程中产生的磁性颗粒物的磁学参数都有所不同,但这些磁性颗粒物都具有质量磁化率高(>10-5m3/kg)而频率磁化率低(<3%)的特征,磁性矿物都以较粗的准单畴和多畴晶粒的磁铁矿为主,另外,磁性颗粒物中还含有少量的顺磁性矿物和反铁磁性矿物。     

磁技术在原油处理中的机理研究

在石油采输领域,由于磁技术作用的机理尚不十分明确,所以限制了其在本行业的推广.本文在现场应用的基础上,对磁技术在原油处理中的机理进行探讨.阐述了磁场对电子自旋磁矩及核自旋磁矩作用的相关理论、水膜理论、原油成分的干扰性.通过对上述理论的研究,对相关的新产品开发、新工艺应用提供理论指导知设计依据.     

毛泽东关于过渡时期理论中阶级问题的思考

本文在简迷马克思列宁主义经典作家关于过渡时期理论中阶级问题思考的基础上，梳理了毛泽东在这一问题上的思路，并试图对其加以分期和说明，指出了毛泽东关于过渡时期理论中阶级问题思考的实质是，如何认识无产阶级与资产阶级、社会主义道路和资本主义道路之问的关系。