浅谈职业教育教学管理

适应时代需求,我国职业教育不断发展,但其教学管理存在诸多问题。本文主要从职业教育学生管理和教师管理两个方面浅析其存在的问题所在,并提出职业教育管理应该树立的理念和切实可行的方法。     

从关联理论看《六人行》的字幕翻译策略

字幕翻译作为翻译界的新兴领域,已越来越受到翻译工作者及研究者的关注。但是我国的影视翻译相较于西方国家还比较落后,影视剧字幕的翻译质量良莠不齐。因此,从新的理论角度,即关联理论这一角度分析字幕翻译的策略并用关联理论指导翻译实践,为字幕翻译提供更广阔的理论支持尤为必要。     

科研软环境对民办高职青年教师科研素质的影响研究——以浙中G职业技术学院为例

民办高职院校科研实力的壮大离不开青年教师科研素质的提升.要提升青年教师的科研素质,首先要从内外部因素去分析其对青年教师科研素质的影响,但不管是内部因素还是外部因素,青年教师的科研素质都与其所处的科研软环境密不可分.这里的科研软环境是指以人为因素的诸多人文环境的总和,包括科研制度与管理、科研学术氛围、科研文化氛围、人才的流动等等.民办高职院校要通过改善科研软环境来促进青年教师科研素质的提升.     

Engineering the race car wing: application of the vortex panel numerical method

This study examined aerodynamic properties and boundary layer stability in five cambered airfoils operating at the low Reynolds numbers encountered in motor racing. Numerical modelling was carried out in the flow regime characterised by Reynolds numbers 0.82–1.29 × 10⁶. The design Reynolds number of 3 × 10⁶ was used as a reference. Aerodynamics variables were computed using AeroFoil 2.2 software, which uses the vortex panel method and integral boundary layer equations. Validation of AeroFoil 2.2 software showed very good agreement between calculated aerodynamic coefficients and wind tunnel experimental data. Drag polars, lift/drag ratio, pitching moment coefficient, chordwise distributions (surface velocity ratio, pressure coefficient and boundary layer thickness), stagnation point, and boundary layer transition and separation were obtained at angles of attack from −4° to 12°. The NASA NLF(1)-0414F airfoil offers versatility for motor racing with a wide low-drag bucket, low minimum profile drag, high lift/drag ratio, laminar flow up to 0.7 chord, rapid concave pressure recovery, high resultant pressure coefficient and stall resistance at low Reynolds numbers. The findings have implications for the design of race car wings.     

The effects of testing procedure on critical fall height determination for third-generation synthetic turf

Test procedures and their accuracy in determining critical fall height (CFH) on sporting grounds are paramount to player safety. The procedure currently adopted for synthetic turf in Australian football [1] consists of four consecutive drops at various drop heights at three test locations on the sample. The quantity and packing of the infill in third-generation turf and the pooling effect of the rubber particles with consecutive drops suggests that the current standard protocol may need re-assessment. Therefore, the purpose of this pilot study was to investigate whether current methods of testing for CFH are appropriate for third-generation synthetic turf or whether an alternative or adapted method needs to be developed. CFH was measured, using a HISUN Uniaxe-II Impact Tester, on 12 combinations of synthetic turf samples (four different products with three shock pad options). Three conditions were investigated on each sample; the existing protocol; an alternative 12 single-drop protocol and four single drops from the CFH determined from the existing protocol. A significant difference was found for both absolute and percentage difference between the existing and 12 single-drop protocol, with p = 0.001 and t = 4.33 and p < 0.001 and t = 6.03, respectively. There was also a significant difference between the CFH reached with and without a shock pad for both the existing protocol and the 12 single-drop protocol. The results of this pilot study demonstrate that differences do occur with alterations to the existing protocol and highlight the need for a more detailed characterisation of testing methods on third-generation synthetic turf and the response of surfaces to them.     

Three-dimensional kinematic analysis of the golf swing using instantaneous screw axis theory,Part 2: golf swing kinematic sequence

A number of recent studies have measured the extent and timing of segment rotation during the golf swing. A promising technique, instantaneous screw axis (ISA) theory, could provide a better expression of segment rotation. In Part 1 of this two-part study, the objectives are to identify the ISA of the pelvis, shoulders and left arm during the downswing, compute segment angular velocity relative to that segment’s ISA and verify that ISA theory is a valid tool to analyse segment rotation during the golf swing. Results indicate that for all subjects, at least 71% of marker velocity is a result of rotation about their respective ISA, when averaging results over the duration of the downswing, confirming that motion is primarily rotational. Furthermore, ISA position and orientation of each segment approaches, on average, the expected gross axis of rotation, confirming that motion about the ISA is representative of joint motion.     

体操游戏健身方案实施对幼儿投掷运动能力影响的运动学分析

为了评价体操游戏健身方案对幼儿投掷能力的影响,运用影像分析方法对不同年龄阶段幼儿干预前后实验组和对照组投掷过程的运动学指标进行分析,探讨体操游戏健身方案的干预效果。研究发现:干预对投掷远度的影响具有统计学差异;对幼儿的肩、肘、腕三个关节的活动范围均有影响,实验组关节活动范围较对照组增加明显,且干预对年龄越大幼儿关节活动范围影响也越大;体操游戏健身方案干预对幼儿肘关节活动范围的影响大于上肢其他两个环节,对腕关节运动幅度的影响最小,除大班孩子外其它年龄组差异均不具有统计学意义。     

我国幼儿人群游戏与健身活动开展的现状与分析

为了进一步了解和掌握我国幼儿人群游戏和体操健身活动的现状,以便为我国幼儿人群运动健身科学指导方案的制定和健身效果的评价等关键技术研究提供理论依据,采用走访调研及专家访谈等方法,对我国11省13市的31所幼儿园进行了有关我国幼儿人群游戏与健身活动开展现状的调查研究。结果表明:游戏是幼儿园幼儿的最基本活动方式,健身活动包括幼儿体操、体育课、户外活动等,幼儿的走、跑、跳、投掷、钻爬、平衡等基本动作能力训练是活动的主要内容;但也存在一些问题,如游戏的形式化、教学化,体操及体育动作还缺乏较为科学的活动理念,幼儿体质监测的缺位等,也影响了幼儿人群健身活动的科学性和有效性。