农村小学布局结构调整后低龄儿童寄宿问题研究——以云南省X县为例

农村小学低龄儿童寄宿现象在农村小学布局结构调整背景下产生。农村小学布局结构调整旨在促进教育资源合理利用,提升教学质量,但与此同时也产生一系列问题,其中低龄寄宿问题尤为严重。低龄寄宿减轻了父母负担,促进了学生自主性。但寄宿条件差、饮食安全得不到保障、低龄学生自理能力弱、亲情缺失、家庭教育功能弱化等问题不容忽视。本文以云南省X县农村小学布局结构调整为例,对其低龄儿童寄宿生身心健康、饮食安全、自理能力状况等展开状况调查,以找到解决策略,并对全国的农村小学低龄寄宿教育提供借鉴。     

民办高校大学生职业生涯发展与生涯教育实践研究——以南通理工学院为例

本文主要以南通理工学院为例,讨论了民办本科高校大学生职业生涯发展与生涯教育现状,分析该校在大学生职业生涯教育方面的教育实践,同时结合本校实际情况有针对性地提出解决方案及行动建议,以期解决民办本科高校大学毕业生的实际就业问题。     

Programmable deformation of patterned bimorph actuator swarm

Graphene-based actuators featuring fast and reversible deformation under various external stimuli are promising for soft robotics. However, these bimorph actuators are incapable of complex and programmable 3D deformation, which limits their practical application. Here, inspired from the collective coupling and coordination of living cells, we fabricated a moisture-responsive graphene actuator swarm that has programmable shape-changing capability by programming the SU-8 patterns underneath. To get better control over the deformation, we fabricated SU-8 micropattern arrays with specific geometries and orientations on a continuous graphene oxide film, forming a swarm of bimorph actuators. In this way, predictable and complex deformations, including bending, twisting, coiling, asymmetric bending, 3D folding, and combinations of these, have been achieved due to the collective coupling and coordination of the actuator swarm. This work proposes a new way to program the deformation of bilayer actuators, expanding the capabilities of existing bimorph actuators for applications in various smart devices.     

小波变换在信号奇异性检测中的应用

小波变换突破了传统傅里叶变换等信号处理方法的限制,在时域和频域上可同时对信号实现局部化处理,这更符合信号非平稳的变频带结构特征,因而在信号检测奇异性等方面具有广泛的应用价值。本文简要地介绍了小波应用在信号奇异性检测方面变换的基本原理,并通过仿真实验进行了验证。     

我国中小企业信息化战略研究

进行信息化建设是提高中小企业竞争力的重要环节。中小企业信息化战略必须经过四个阶段:根据企业发展远景与内外部条件,确定合适的信息化目标;以整体考虑,从需求切入,确定合适的信息化建设内容与方案;制定实施计划;严格项目实施与维护及实施后信息化持续建设与发展等,而且必须根据不同类型的企业选择市场模式、效率模式等不同的战略。     

企业战略成本管理与核心竞争力培育

企业要在激烈的市场竞争中立于不败之地,必须进行成本管理改革。把成本管理贯穿于生产经营的整个过程。因此,我国企业应导入战略成本管理,以此作为提升核心竞争力的利器。     

高校图书馆读者维权意识的觉醒及读者工作对策

对读者维权意识的觉醒和高校图书馆读者工作的冲突进行了分析,认为新形势下高校图书馆读者工作的转变主要有三点:领导观念更新、规章制度依法修订和馆员综合素质的提高。     

Understanding human influence on climate change in China

China''s climate has been warming since the 1950s, with surface air temperature increasing at a rate higher than the global average. Changes in climate have exerted substantial impacts on water resources, agriculture, ecosystems and human health. Attributing past changes to causes provides a scientific foundation for national and international climate policies. Here, we review recent progress in attributing the observed climate changes over past decades in China. Anthropogenic forcings, dominated by greenhouse gas emissions, are the main drivers for observed increases in mean and extreme temperatures. Evidence of the effect of anthropogenic forcings on precipitation is emerging. Human influence has increased the probability of extreme heat events, and has likely changed the occurrence probabilities for some heavy precipitation events. The way a specific attribution question is posed and the conditions under which the question is addressed present persistent challenges for appropriately communicating attribution results to non-specialists.