浅谈职业院校服装设计专业教学改革

改革开放以来,尤其是我国加入WTO以来,我国的服装产业取得了巨大成功,但是作为服装产业价值链的核心——服装设计却一直原地踏步,职业院校的服装设计专业教学对此具有不可推卸的责任,针对这种情况,本文简单介绍了目前职业院校服装设计专业教学的现状及问题,并着重探讨了职业院校服装设计专业的教学改革方向。     

数字语音室耳机故障分析与处理

数字语音室已在高校中普及,并且使用率很高。通过分析6个数字语音室2个学期的设备维修数据,发现耳机是最容易损坏的设备,主要的故障有麦克噪音、麦克无声、耳机无声和单声道,因此对耳机的及时维修是数字语音室有效维护的关键。     

2020春季开学第一课语文教学案例

随着疫情形势的逐渐好转,各行各业相继复工复产,各中小学校也将陆续开学。为了抚慰疫情给孩子们的心灵带来的影响,时值春季,我们选择了毛泽东的《七绝·咏蛙》作为开学后语文教学的第一课。     

Anisotropic fluoride nanocrystals modulated by facet-specific passivation and their disordered surfaces

Rutile-type fluorides have been proven to be active components in the context of emerging antiferr-omagnetic devices. However, controlled synthesis of low-dimensional, in particular two-dimensional (2D), fluorides in a predictable and deterministic manner remains unrealized because of a lack of efficient anisotropic control, which impedes their further development in reduced dimensions. We report here that altered passivation of {110} growing facets can direct the synthesis of rutile-type fluoride nanocrystals into well-defined zero-dimensional (0D) particulates, one-dimensional (1D) rods and 2D sheets in a colloidal approach. The obtained nanocrystals show positive exchange bias and enhanced magnetic transition temperature from the coexistence of long-range antiferromagnetic order and disordered surface spins, making them strong alternatives for flexible magnetic devices and sensors.     

从三元参与者与大学科技园的互动博弈看大学科技园的发展

本文从大学、政府及企业与大学科技园互动博弈的角度分析了大学科技园的发展。大学科技园的发展必须是在与大学、政府和企业博弈的条件下才能更理性地进行,而从这一博弈过程来研究大学科技园的功能就更加具有意义。     

Injectable hybrid inorganic nanoscaffold as rapid stem cell assembly template for cartilage repair

Cartilage injuries are often devastating and most cannot be cured because of the intrinsically low regenerative capacity of cartilage tissues. Although stem-cell therapy has shown enormous potential for cartilage repair, the therapeutic outcome has been restricted by low survival rates and poor chondrocyte differentiation in vivo. Here, we report an injectable hybrid inorganic (IHI) nanoscaffold that facilitates fast assembly, enhances survival and regulates chondrogenic differentiation of stem cells. IHI nanoscaffolds that strongly bind to extracellular matrix (ECM) proteins assemble stem cells through synergistic 3D cell–cell and cell–matrix interactions, creating a favorable physical microenvironment for stem-cell survival and differentiation in vitro and in vivo. Additionally, chondrogenic factors can be loaded into nanoscaffolds with a high capacity, which allows deep, homogenous drug delivery into assembled 3D stem-cell-derived tissues for effective control over the soluble microenvironment of stem cells. The developed IHI nanoscaffolds that assemble with stem cells are injectable. They also scavenge reactive oxygen species and timely biodegrade for proper integration into injured cartilage tissues. Implantation of stem-cell-assembled IHI nanoscaffolds into injured cartilage results in accelerated tissue regeneration and functional recovery. By establishing our IHI nanoscaffold-templated 3D stem-cell assembly method, we provide a promising approach to better overcoming the inhibitory microenvironment associated with cartilage injuries and to advance current stem-cell-based tissue engineering.     

美国智库对中美科技竞争的观点解读及对策建议

[目的/意义]准确研判美国智库对于中美科技竞争的基本观点,是分析美国对中国进行科技竞争的舆论走向、战略认知与政策取向的重要依据。[方法/过程]选取美国8家主流智库的11份代表性研究成果作为研究样本,发现美国智库主要围绕中国科技实力的发展对美国产生的影响与美国如何同中国展开科技竞争这两个议题进行全面与深入的探讨。总体而言,美国主要智库已就中国科技实力对美国形成重要挑战这一点达成一定的共识,但在美国同中国展开科技竞争应实行的具体政策上存在一定的分歧。[结果/结论]美国智库总体上对中美科技竞争持消极观点,这是美国对中国的战略认知出现转变的结果。这些观点的传播将影响美国政府对华科技政策的取向,影响其他国家同中国展开的科技合作。中国应该在理性与辩证地看待美国主流智库观点的基础上,消除美国智库观点带来的消极影响,管控中美间在科技领域的战略竞争,努力拓展同美国以及其他国家在科技领域的合作空间,增强自主创新能力,化解中国在科技外交上可能面临的不利局面。     

谈高等职业教育面临的挑战及对策

当前,高校扩招既给高等职业教育的发展带来了机遇,也给它带来了前所未有的影响和冲击。面对机遇和挑战,针对当前高等职业院校办学中暴露出来的问题,文章进行了理性的分析和探讨,试图找出对策,为高等职业教育的生存、发展和壮大提供依据。     

绿色农业控制系统创新实践教学平台设计

以绿色农业应用为背景,融入现代科技设计创新实践教学平台.系统设计了清洁能源系统、能源储存系统、信息采集系统、智能温室控制系统、中央控制系统、人机交互以及云平台应用系统,实现能源自给自足、环境信息采集与存储、无线区域组网、系统信息显示与预警、智能控制等功能.系统内各功能部分,采用独立的模块化设计,易于组装移植,综合性、开...