高职院校环境监测实践教学改革探索

本文分析了高职院校环境监测实践教学中存在的问题,从实践参与教学模式、实践教学方法及考核、评价方式等方面进行了一系列的探索和尝试。     

Understanding the impacts of ‘Grain for Green’ land management practice on land greening dynamics over the Loess Plateau of China

Land greening in China is regarded as contributing a great deal to greening of the Earth. The phenomenon is mainly attributed to climate change, arising atmospheric CO₂ and ‘Grain for Green’ (GFG) land management policies. However, limited knowledge is known how much land greening is from contributions of the GFG practice. Therefore, the study took the typical region of the GFG practice, the Loess Plateau, as the study area, and used 1982–2015 satellite-observed GIMMS3g normalized difference vegetation index (NDVI) data, ERA-Interim climatic variables (precipitation, temperature and solar radiation) and atmospheric CO₂ concentration data with the help of a developed TPRC-based NDVI model to derive GFG-induced NDVI after 1999. Furthermore, this study tracked the spatial-temporal dynamics of GFG-induced NDVI and assessed contributions of the GFG practice to regional vegetation changes. Results showed that satellite-observed NDVI and TPRC-based NDVI both exhibited an increasing spatial pattern from the northwestern to southeastern Loess Plateau, but their greening trends were separately 0.0022 and 0.0009 per year in 1982–2015 (p < 0.05). Note that the satellite-observed greening trend was much steeper with a slope of 0.0056 per year after 2006 (p < 0.05). The subsequent analyses documented that GFG-induced land greening were largely responsible for the steep trend. In space, evident greening patterns began to be observed in the central Loess Plateau from 2006 to 2008, afterwards expanded towards eastern and southwestern Loess Plateau. In 2011–2015, the increase magnitude of GFG-induced land greening in the Loess Plateau averagely accounted for 8.5 % in comparison to estimated TPRC-based NDVI, but in six natural zones were various, ranging from 3.2%–15.7%. In some regions of central Loess Plateau, GFG-induced NDVI contributed even more than 20 % to vegetation increase. This study highlights that land use management contributes more to land greening dynamics over the Loess Plateau compared to climate change and arising atmospheric CO₂ concentration. These findings likely provide some valuable information for curbing or enhancing specific-location vegetation changes in future regional land management and planning.     

互联网背景下工商管理模式的创新发展研究

随着信息时代的到来,互联网技术在各个行业的应用也越来越普遍,这也为我国经济的发展提供了非常有利的条件。工商管理模式的创新实践是现代企业经营管理中的核心内容,工商管理模式将直接影响企业在日常经营中解决各种管理问题的效率,是企业稳定持续发展的重要指标。因此,企业的管理者应该合理地运用现代化信息技术,提升企业工商管理的水平,实现企业的健康稳定发展。     

Perceived hygiene attributes in the hotel industry: customer retention amid the COVID-19 crisis

The COVID-19 pandemic has caused a crisis in the hotel industry worldwide, but few studies have suggested methods to retain customers. This study proposes hygiene management as a means to minimize the indirect damage from COVID-19 to the hotel industry. It identifies perceived hygiene attributes and explores their influence on hotel image, word of mouth, and revisit intentions. This study identifies and validates three types of perceived hygiene attributes through qualitative and quantitative methods. It uses structural equation modeling to validate hypotheses and concludes that there are significant relationships of influence between the proposed variables. This study provides important and meaningful insights into hotel image and customer behavior through perceived hygiene attributes.     

In landscape management all of us have something to say. A holistic method for landscape Preservability evaluation in a Mediterranean region

Landscape assessment methods have traditionally valued the landscape through a panel of experts with little or no participation of the population. However, after the adoption of the European Landscape Convention (ELC), the perception and the participation of the population has played an increasingly important role in landscape evaluation and planning. In this regard, the goal of this paper is to develop a model able to evaluate and integrate both the objective and subjective landscape factors into a new concept: the Preservability. This model, as well as selecting and classifying the landscape attributes according to the bio-geographic features of the study area i.e., Ricote Valley (Region of Murcia, Spain), includes two online surveys: one to assess the populatiońs landscape preferences and the other to obtain the specific weight of each objective and subjective landscape factor from a panel of experts. These landscape factors were incorporated into a GIS. To obtain the best model, the Preservability was assessed from three different approaches: objective, objective-weighted and weighted. The final results demonstrate how the Preservability weighted method returns different thresholds appropriate to the landscape attributes, the population’s perceptual preference and the protected areas. The different thresholds allows for priority areas to be identified for protection, as well as the adoption of appropriate management and planning strategies according to the landscapes characteristics, current state and uniqueness.     

Demand for ecolabeled seafood in the Japanese market: A conjoint analysis of the impact of information and interaction with other labels

The use of seafood ecolabels is expanding in the world marketplace, but so are labels indicating other product attributes, such as country of origin and wild vs. farmed. The interactive effects of these labels and attributes in evaluating consumers’ preferences for ecolabeled seafood are relatively unexplored. In this paper we investigate (1) the direct and interactive effects of seafood ecolabels with other common fish labels, and (2) how consumers’ perceptions about the state of marine stocks and the valuation of ecolabels may be affected by different information. We find moderate interactive effects between ecolabels and country of origin labels, whereas the valuation for seafood ecolabels is fairly high. In terms of information, we find that consumers’ perceptions about fish stock levels changed (negatively) after receiving information on declining stock levels, and more sensationalized information led to increased change. However, valuation for a seafood ecolabel increases only when the information was perceived positively (credible/interesting); whereas exaggerated information (which was also perceived less credible) had insignificant effects on WTP.     

EPC工程总承包项目“区域分包模式”的管理实践

当前,我国许多传统设计研究院正致力于向国际型工程公司的转型,这一转型过程中的一项重大挑战就是对分包商的管理,本文通过中铝国际"区域分包模式"的管理实践以及效果的分析,对EPC模式下的分包管理模式进行了探讨。     

基于高职电类专业的职业能力培养体系研究

本文以高职电类专业为例,就高职职业能力体系的建立进行了研究,并分析了实践体系的重要性,提出了一些看法。     

试谈素质教育中实践能力的培养

素质教育的目的是全面贯彻党的教育方针,提高国民素质,培养学生的创造精神和实践能力。而实践能力是人的能力的重要成分,是学会做事的具体体现,是学生生存发展的需要。教育要注重知行统一,坚持教育教学与生产劳动、社会实践相结合,增强学生解决实际问题的本领和自主探究学习的能力。     

我国建筑钢结构设计规划及发展

发展钢结构建筑有利于实现国民经济可持续发展,近10多年来钢结构发展很快,但钢结构应用范围涵盖面与发达国家相比还相差甚远,中国是建筑业大国,国内、国外的建筑市场十分广阔。如何扩大钢结构应用范围,是建筑、结构工程师在建筑业可持续发展的"后建筑时代"也就是低碳、节能、环保建筑中所面临的继承和创新的挑战。我国钢结构大量在建筑工程中应用可以说是从广州新白云国际机场开始,发展到今天在许多航站楼、会展中心、体育场馆、奥运场馆、工业厂房、高层建筑直至现在的高铁站房。本文对此展开一个阐述。