大型活动对旅游目的地形象影响研究

本文研究了大型活动对旅游目的地形象影响机制和策略。大型活动形象影响机制包括大型活动形象的形成机制、大型活动形象与目的地形象匹配机制、目的地形象形成和传播机制三个过程。本文最后给出了利用大型活动提升和传播目的地形象的对策。     

嵌入全球价值链模式与自主全球价值链模式的绩效比较分析——以轿车产业为例

实证表明,自主GVC模式在自主品牌建设方面的实际绩效优于嵌入GVC模式。在片断化程度、低度化程度、自主权、"干中学"效果、创新能力、响应社会期望6个维度的比较中,自主GVC模式在5个维度上比嵌入GVC模式优越。国外经验显示,自主GVC模式在产业发展上有成功的范例,而嵌入GVC模式是否成功,尚缺乏事实的证明。     

一种基于块效应强度检测和测量的新型图像质量评价方法

摘译目前,大部分图像压缩标准使用基于块的变换编码,图像压缩过程中会产生各种压缩效应。其中,块效应是降低图像压缩质量的最常见的问题之一。对块效应进行量化的图像质量客观评价方法可有效地降低块效应的发生,同时也可优化整个图像压缩系统,例如,其可以用于图像预处理（检测和有选择地补偿块效应）中。     

基于空域的嵌入式数字图像隐藏

在介绍了信息隐藏技术和数字图像的基本知识的基础上,本文首先讨论了置乱和融合技术的理论和实现途径,并提出了一种基于其上的数字图像隐藏方法,其中置乱技术是作为融合的前序步骤,对隐藏目标图像进行预处理和后处理,而融合技术将隐藏目标图像隐藏于隐藏载体图像之中,充分利用人们的“所见即所得“的心理,来迷惑恶意的攻击者.其次对上述方法的实现效果进行了检验和讨论,分析了它们的优缺点,然后介绍了软件的实现过程.实例分析证明,这种算法可以比较方便的实现,并且具有一定程度的鲁棒性,因此可以应用于实际.     

论组织文化与印象管理之间的关系及影响

印象管理是组织内成员常用的一种行为策略,此种行为之目的在藉此增强他人对自己的印象以达到行为人的意图。本文针对不同类型的组织文化影响下,对组织内部员工所采取的印象管理的差异,进行分析。使用具有信度及效度的印象管理量表以及组织文化量表进行问卷发放,并用统计分析方法得到实证结果,发现组织文化与印象管理具有相关性,并且组织文化对于员工所采取的印象管理战术具有影响力。     

国际形象及其在国际关系中的作用简议

国际形象是国际社会对一国相对稳定的总体评价,是主权国家最重要的无形资产,在很大程度上决定着一个国家在国际舞台上的地位、影响力和发展条件。初步探讨了国际形象的内涵、外延、构成要素和特征,论述了国际形象在国际关系中的作用。     

The effects of personal information management capabilities and social-psychological factors on accounting professionals’ knowledge-sharing intentions: Pre and post COVID-19

Given the increased emphasis on individual factors in knowledge management research, this study proposes a research model that examines the effects of personal information management capabilities and social-psychological factors on the knowledge-sharing intention of accounting professionals. The survey results from 136 accounting professionals reveal that both personal information management capabilities and perceived image can positively influence knowledge-sharing behavior. Conversely, reciprocity and loss of knowledge power do not exhibit a significant role in knowledge-sharing intentions. The comparison analyses between pre- and post-COVID-19 sample groups indicate similar results for the hypothesized relationships while there are notable mean differences in knowledge sharing intention, image and information processing capabilities. This study extends current research by incorporating personal information management capabilities to examine the power of the “individual” in knowledge sharing and offers timely evidence of accounting professionals’ personal knowledge management practices during the period of COVID-19. This study raises implications for researchers and practitioners interested in knowledge management in the accounting profession.     

基于数学形态学模型的图像缺陷改善研究

为了提高原稿图像质量,保证其在印刷品上准确再现,本研究采用数学形态学模型的机理和运算法则,对图像缺陷进行改善。实验通过数学形态学中膨胀、腐蚀以及开闭运算模型对缺陷图像进行运算处理,并对计算结果进行比较分析。结果证明该模型对图像缺陷有明显的改善作用,可以有效地运用在印刷复制工艺中。     

基于Pleiades卫星遥感数据的正射影像制作研究

作为SPOT系列卫星的性能补充,Pleiades卫星具有0.5m的高空间分辨率特征,且星点下最大幅宽达到20km,为我国高分辨率国土资源动态监测提供了很好的遥感影像数据源。文章针对Pleiades卫星数据的特性,研究了其正射影像制作的流程和方法,并探讨分析处理过程中的关键技术问题,为高精度、高质量正射影像图的大规模数据生产提供技术支持。     

Characterizing land disturbance in Atewa Range Forest Reserve and Buffer Zone

Changes in land cover of protected areas and their buffers have serious implications on the conservation of biodiversity within such biomes because land use has been recognized as one of the major drivers of biodiversity change. Atewa Range Forest Reserve is one of Ghana's Upper Guinea Forests declared as a Globally Significant Biodiversity Area (GSBA). But the reserve is under threat from several human disturbances which could impact on the land cover of the reserve.This study examined the spatial and temporal changes in land cover of Atewa Range Forest Reserve and it's buffer between 1986 and 2013 using remote sensing. Land use and land cover (LULC) classification and change detections were undertaken using one Landsat Multispectral Scanner (MSS) image of 1986 and Landsat ETM+ images of 2003 and 2013.The study also investigated the driving forces of LULC and the effectiveness of the Forest and Wildlife Policy of 1994 in the management of the reserve.Results of image classification showed that much of the peripheral closed and open vegetative covers have been converted to farms and bushes with little disturbance within the interior of the reserve. The study revealed that, the conservation management policies were yielding very little results due to a number of policy deficiencies including low staff strength, lack of logistics and low remuneration. Enforcement of legal instruments against illegal logging, small scale mining and farming activities within the reserve, improvement in the staff strength and their condition of service, intensification of public education on the value of forest and the need to protect it are some of the major recommendations that could curb encroachment on the reserve.