一种基于微波雷达回波信号的车型分类方法

车辆类型识别方法是智能交通系统的关键技术之一。利用深度学习的高维特征泛化学习能力,将改进的LeNet-5卷积神经网络用于基于交通微波雷达的大小车型分类识别。首先,以雷达触发前的N帧信号为基础,对雷达的回波信号进行分析并构建数据集;然后,分析LeNet-5卷积神经网络的特点;最后提出一种改进的LeNet-5卷积神经网络。实验结果表明,与传统的支持向量机方法相比,所提方法能够智能学习大小车的雷达时频信号特征,大小车型识别准确率达到97%以上,可为交通场景下的车型识别研究提供新的技术途径。     

石油储量价值评价中运销成本级差模型的设计与检验

对石油资源价值评价中的4个成本因素之一——运销成本级差因素进行了讨论。文中分析了运销成本级差因素的组成因子之后．建立对之进行测算的数学模型，并就两个油田的实测数据给出了计算结果。     

Analysing the role of sustainable development indicators in accounting for and constructing a Sustainable Scotland

The main objective of this paper was to analyse how sustainable development indicators impacted upon the integration of sustainable development into the governing of Scotland. A major concern was whether an accounting technology could represent this complex multi-dimensional and interdisciplinary concept. We analysed the relationship between the official sustainable development strategy of the Scottish Executive and the associated indicator set using an analytics of government framework (Dean, M. (1999). Governmentality: Power and rule in modern society. London: Sage Publications. Dean, M. (2007). Governing societies. Berkshire: Open University Press). We observed a lack of alignment between these sustainable development indicators and the visions, fields of visibilities, forms of knowledge and techniques of government contained in this strategy. Critical aspects of this strategy were omitted from the indicator set and we argue that these indicators did not to effectively measure progress towards a Sustainable Scotland but that they could calculatively capture and distort the sustainable development governing process. The analytical framework used allowed us to problematise these indicators and contribute to a wider discourse on the composition and nature of sustainable development indicators.     

浅谈广东省IC卡道路运输证在客运站安全监管中的应用

IC卡道路运输证和IC卡从业资格证的推广应用,是加快现代化道路运输体系建设,推进道路运输信息化、智能化发展,不断提升公共服务效率和水平的有效手段。本文结合近年来广东省IC卡道路运输证在行业管理中的实际应用,分析了IC卡道路运输证在客运班车进出站管理中的应用数据,提出了IC卡道路运输证在客运站安全监管工作中的重要作用。     

Sustainability adrift: An evaluation of the credibility of sustainability information disclosed by public organizations

This article aims to evaluate the credibility of information disclosed by public organizations in terms of sustainable development. It focuses on an under-studied aspect in the sustainability reporting literature—namely, the factors that may affect the credibility of disclosure practices. The study is based on a qualitative analysis of the sustainable development content of annual management reports disclosed by 113 ministries and public bodies in the province of Quebec, Canada. The findings shed more light on the main factors that affect the credibility of the information disclosed therein, particularly in terms of lack of transparency and flawed monitoring mechanisms.     

普光气田地面集输系统腐蚀监测技术

为了对普光高含硫气田地面集输系统实施有效的腐蚀监测,针对普光气田地面集输系统的特点,从腐蚀监测目的出发,设计腐蚀监测方案,确定腐蚀监测点,运用腐蚀挂片、电阻探针、水分析等先进的监测技术和分析手段,对普光气田地面集输系统进行综合的腐蚀监测。根据监测数据显示:普光气田地面集输系统主要在硫沉积与积液部位发生了点蚀,但整体腐蚀速率控制在标准允许范围以内,防止存在积液和沉积物的压力容器及压力管道的局部腐蚀是目前腐蚀与防护工作的重点和难点。     

京沪高铁对航空客运分担率影响的研究

文章通过问卷调查,构建Logit模型,分析了不同年龄段、不同收入人群在休闲旅行和商务出行两种出行目的下选取交通工具的差异,并预测了当前水平下,各种交通工具的运输分担率。模型的结果对政府部门合理制定交通运输政策有一定的实际意义和参考价值;也为航空公司针对不同人群制定相应的价格和服务策略,以更好地应对高铁带来的挑战,提供了一定的依据。     

Why sustainable and ‘nutritionally correct’ food is not on the agenda: Western Sydney,the moral arts of everyday life and public policy

Within a context of delivering food security into the future, dietary guidelines are being reframed, corporations are replacing unsustainable products, and consumers are being encouraged to become ecological citizens. While there is a growing literature on the food practices of ‘alternative’ consumers, ‘mainstream’ consumers are less well understood. This paper describes qualitative research undertaken in a socio-economically disadvantaged area of Sydney, Australia, which aimed to uncover consumer views towards sustainable and healthy diets. Most participants indicated a discrepancy between their desired and actual behaviours: while they want to support Australian, or local, food producers they gravitate towards cheap and tasty food from ‘anywhere’; and while they associate nutritious food with fresh food, they will buy processed foods which can be less expensive, appeal to children and are prone to less waste. Reflecting mainstream Australian political culture, participants were compromising household food budgets in order to pursue a socially acceptable standard of living (including decent housing, car-reliance). They were also incorporating the pleasure and desires of family members as part of ‘the moral arts of everyday life’. Using social theories of consumption and practice sociology we argue that food choices and practices – easy or not – need to be interpreted as part of the role that consumption plays in political citizenship and moral subjectivity. In the Western Sydney context, food practices are essentially household budget and family nourishment practices rather than nutrition and sustainability practices; a position which is not addressed in the government’s new food policies or wage determination processes.     

新丝绸之路经济带交通基础设施与城市化——基于高铁和高速公路的研究

交通运输是支撑城市活动最主要的基础设施之一,同时也是制约区域经济发展,影响城市化的重要因素。在新丝绸之路经济带沿线,无论是铁路设施还是公路设施近些年来都实现了新的飞跃,多地的交通运输水平得到了质的提升,本文在研究新丝绸之路经济带沿线交通基础设施空间分布的基础上,计算以高速公路和高速铁路为指标的交通基础设施和城市化的耦合协调度,以期为政府未来政策的制定提供启示和建议。