Sustainable consumption in China: New trends and research interests

China is currently the largest CO₂ emitter in the world and demonstrates one of the highest levels of energy consumption. The sustainable consumption behavior has increased in China, especially in urban cities. Some clear evidence of this includes food purchasing behavior. Recent studies have also suggested that considering full product information transparency, consumers are willing to pay premium prices for products. With this in mind, sustainable consumption must still be facilitated by related policies, regulations, and tools. This study focuses on sustainable consumption behavior in China and collects and analyzes the literature from the last decade (2007–2017) on the topic. In so doing, it highlights new trends and research topics against the background of circular economy development. The method of systematic review is applied. The review is categorized into several main groups: national policies and regulations, the green awareness of consumers, the definition of related concepts, the barriers between sustainable consumption and the circular economy, and the indicators for circular economy assessment in China. Future research directions are discussed. Furthermore, future challenges are addressed from three perspectives: sustainable consumption facilitating the circular economy, “cradle‐to‐cradle” practices, and the link between the European Union and China. This is a fundamental study in the research domain of sustainable consumption behavior. It provides added value that benefits both academic researchers and decision makers. It also sheds light on the further study of sustainable consumption behavior in China from a macroeconomic perspective.     

Cox Point Processes: Why One Realisation Is Not Enough

We review a rich class of point process models, Cox point processes, and illustrate the necessity of more than one observation (point patterns) in performing parameter estimation. Furthermore, we introduce a new Cox point process model by treating the intensity function of the underlying Poisson point process as a random mixture of normal components. The behaviour and performance of the new model are compared with those of popular Cox point process models. The new model is exemplified with an application that involves a single point pattern corresponding to earthquake events in California, USA.     

CONTINUOUS PREFERENCE ORDERINGS REPRESENTABLE BY UTILITY FUNCTIONS

This paper surveys the conditions under which it is possible to represent a continuous preference ordering using utility functions. We start with a historical perspective on the notions of utility and preferences, continue by defining the mathematical concepts employed in this literature, and then list several key contributions to the topic of representability. These contributions concern both the preference orderings and the spaces where they are defined. For any continuous preference ordering, we show the need for separability and the sufficiency of connectedness and separability, or second countability, of the space where it is defined. We emphasize the need for separability by showing that in any nonseparable metric space, there are continuous preference orderings without utility representation. However, by reinforcing connectedness, we show that countably boundedness of the preference ordering is a necessary and sufficient condition for the existence of a (continuous) utility representation. Finally, we discuss the special case of strictly monotonic preferences.     

城市规划设计中的街道家具

认为当前国内城市规划和设计中,忽视了城市公共空间服务于人类生活品质的终极目标。论述了街道家具在城市公共空间中的功能和相应的设计原则,指出以人为本是其设计的基本准则,阐述了国内街道家具的现状,并借鉴日本的经验展望国内街道家具的发展趋势。     

浅谈海上钢管桩防腐制作

本文通过对北东口水道特大桥海上平台的研究,系统地介绍了海上钢管桩的防腐制作工艺——钢管桩表面涂敷技术。在实际应用的质量检验中证明该技术有良好的效果,有效的控制了钢管桩的腐蚀破坏。     

钢铁生产物流工艺过程监测与控制系统设计与实现

文章运用生产物流管理的思想和方法,阐释钢铁生产物流工艺过程的特点、监控的问题和原因,提出建立物流仿真系统和物流自动化技术设计方案,有效实现钢铁生产物流工艺过程的监测与控制手段,对现代钢铁生产物流工艺过程的科学管理具有重要的指导价值。     

特低渗透油藏间歇式生产油井产能预测分析

特低渗透油藏产能低,开发难度大已成为共识。为了对特低渗透油藏油井产能和油藏产量进行准确的预测,本文在达西公式的基础上,考虑到特低渗透油藏的渗流受到启动压力梯度的影响,推导出了具有启动压力梯度的间歇式生产的油井产能的预测模型,得出油井间歇式生产过程中采油量与时间存在指数递减关系;还推导得出油井关井时间段井底压力变化的数学模型,分析出其井底压力变化与采油时间段的采油速度有关,并给出了进行计算机迭代运算的求解方法和计算步骤。     

基于瓶颈指数的旅游产品制造企业生产物流瓶颈问题研究

首先分析了旅游产品制造企业物流瓶颈的多态性问题,提出了迟钝型和敏锐型瓶颈的概念,构建了旅游产品制造企业生产物流瓶颈的动态预测模型,还提出了瓶颈漂移的预测方法。最后以唐龙陶瓷旅游产品制造企业的装配车间为例,证明本研究能够较准确的预测旅游产品制造企业生产物流瓶颈漂移的趋势,实现有效的监控。     

利用气井历史生产数据计算动态储量新方法

气藏动态储量是指参与渗流的地下气体地质储量,计算动储量常采用物质平衡法,但是对于难以获得平均地层压力的致密气藏不适用。本文介绍了利用气井长时间生产数据计算动态储量的方法,并研究采用叠加时间函数(Super-t)分析变产量修正时间,使计算结果更加精确;同时应用该方法对苏东南区致密砂岩气藏部分气井进行单井动态储量计算,为该区动储量估算提供借鉴。     

国家审计理论的几个基本问题研究——基于多学科的视角

国家审计是国家治理的基石与保障,国家审计体现了国家政治意志,国家政治、经济和文化的发展又调整着国家审计的功能和边界。基于多学科视角探讨国家治理与国家审计的协同关系,揭示国家审计的哲学本质与政治功能,理清国家审计的经济边界,分析国家审计的法治建设与文化建构等基本问题,构建国家审计基础理论的分析框架,认为国家审计可以通过提升组织的设计与管理、政治制度的设计、合法化的基础及文化与社会等要素来改进国家治理。