可持续造物--慢时尚服饰设计文化初探

随着时尚产业与社会环境矛盾的日益激化,可持续时尚作为解决这一问题的必由之路成了所有从业者的关注焦点。慢时尚服饰设计作为可持续时尚的主要模式之一,在"造物"上要求生产、使用以及处置道德,将设计重点从如提高消费频次转移到服装资源的再利用、自然环境亲和、服装的适用性和精神性需求以及地方时尚文化上来。在"载物"上,要求帮助消费者寻找自我的真实需求,并建立自身与服装的联系,避免非理性消费,设计师则要以制造者、教育者以及活动家的身份,肩负起发展可持续时尚的重任。     

旅游交通方式比例结构跃迁现象与跃迁带模型——以国内旅游为例

选择北京、武汉、西安3个城市为案例客源地,基于大样本问卷调查数据,研究客源地居民访问不同距离国内目标景区时采用自驾车、火车、飞机三种交通方式的比例结构及其变化规律。研究发现:①随着客源地与目的地距离的增加,采用自驾车、火车、飞机三种主要交通方式到访目标景区的旅游者比例结构发生了有规律的变化,产生了旅游交通方式跃迁现象,在客源城市周围形成了多个旅游交通方式跃迁带,可分为主交通方式跃迁带、次交通方式跃迁带与波动带三种类型。②在客源城市周围由近及远依次产生旅游主交通方式由自驾车向火车转变和由火车向飞机转变两个主跃迁带,有的客源城市在此之外还会出现主交通方式由飞机向火车转变的第三主跃迁带。据此构建旅游交通方式跃迁带模型,通过对比旅游交通方式主跃迁带在案例城市的现实表现,初步发现了国内旅游交通方式跃迁带位置的变化规律及其影响因素,为研究旅游交通方式跃迁现象提供了认知框架,为目的地根据旅游主交通方式细分市场、更有针对性地提供旅游交通服务和开展市场营销工作提供了参考依据。     

China’s Belt and Road Initiative: Reducing or Increasing the World Uncertainties?

Although worldwide poverty, a basic concern of John Kenneth Galbraith, is reducing on average, I argue that poverty remains a critical issue in many countries. This led the Chinese government to propose the Belt and Road Initiative (BRI) in 2013. Broadly, the BRI constructs a cross-continental nexus between countries to reduce their development uncertainties by increasing their connectivity. As a result, the Chinese government has invested trillions of infrastructure dollars in projects that have been introduced to the involved countries as sovereign debt along with the participation of Chinese multinational corporations. Although evidence has shown that this initiative is gaining increasingly more support from the less-developed countries, signs of uncertainty in various forms have clearly emerged. In light of such, I propose that possible in-country political instability, political conflicts among the participating countries, national debt defaults, and competition between China and the United States of America in regional influence may have added to the underlying uncertainties that have challenged the world.     

丽江古城慢旅游及其成因研究

近年来,慢旅游的话题开始得到学者关注,但已有研究较少从"旅游与现代性"的角度对个案进行实证分析。本文基于对去过丽江古城的受访者和潜在旅游者的访谈数据,借助质性研究方法对访谈文本进行高频词提取和扎根理论编码分析,探讨丽江古城慢旅游的两个维度:环境和慢旅游体验。本文还挖掘出丽江古城作为慢旅游目的地的形成原因:其所处的自然环境与当地生活理念的互动构成了当地慢旅游的基础;旅游利益相关者制造了"慢"的符号和象征意义,契合了当代旅游者的需求和认同,助推了丽江古城慢旅游的存在和发展。     

Managing the drone revolution: A systematic literature review into the current use of airborne drones and future strategic directions for their effective control

Commercial and private deployment of airborne drones is revolutionising many ecosystems. To identify critical issues and research gaps, our systematic literature review findings suggest that historic issues such as privacy, acceptance and security are increasingly replaced by operational considerations including interaction with and impacts on other airspace users. Recent incidents show that unrestricted drone use can inflict problems on other airspace users like airports and emergency services. Our review of current regulatory approaches shows a need for further policy and management response to both manage rapid and efficient drone usage growth, and facilitate innovation (e.g. intraurban package delivery), with one promising strategic response being low altitude airspace management (LAAM) systems for all drone use cases.     

锦州市交通污染现状及趋势分析

调查了锦州市每条道路的长度及相应道路每种车型的日平均小时车流量,求出每条道路各种污染物排放量,求出这一级别道路每公里各种污染物排放系数,调查机动车保有量分车型比例变化状况,发现轻型车,特别是轿车增长速度最快,出租车日行驶里程较大,污染物排放较大。预测至2020年,道路将发展至518.7公里,Nox、CO及HC污染将控制在2220t/a、28886t/a、3305t/a水平,提出加强对机动车年检线尾气检测的监督管理是最有效污染防治措施。     

论中国铁路的技术发展规律及技术创新轨迹

从技术经济学的角度论述铁路这种运输方式的发展历程,根据该运输方式的过去和现状,推测铁路将来的发展趋势,即客运高速化、货运重载化、牵引动力现代化、货物运输集装化和集中化、运营管理信息网络化,并总结铁路运输在发展历程中的技术发展规律和技术创新轨迹。     

长交路、轮乘制下如何抓好乘务员教育培训工作

以中铁一局新运朔黄运输公司配属17台SS4改型电力机车在朔黄铁路实行长交路、轮乘制后,机车利用率高,人员紧,机车乘务员教育培训难度大的实际情况下,以运转车间为例,提出有效的措施抓好乘务员的教育培训。     

Route-charging policies for a central European cross-border upper airspace

The introduction of the Central European Air Traffic Services Upper Area Control Centre controlling the upper airspace of several European countries allows different route-charging policies. The impact of three charging scenarios on aircraft operators is examined. It is found that, without a compensatory mechanism, the policy of having different unit rates for each air navigation service provider would adversely affect regional and region-based carriers because the unit rate of the new provider would be significantly lower than the unit rates of the national providers controlling the lower airspaces.     

基于贝叶斯正则化神经网络的道路交通安全倾向性预测

对典型部门影响交通安全的相关因素进行了集成分析,构建了道路交通安全倾向性预测指标,在此基础上采用贝叶斯正则化神经网络对沈大高速公路某路段的道路交通安全倾向性进行了预测,对网络结构、训练集、预测集以及学习次数进行了优化.预测结果表明,在推广能力方面,贝叶斯正则化神经网络优于传统的神经网络,可作为探究道路交通安全系统内部各影响要素关系的辅助手段.