宏观连续交通流数值模拟

应用交通流宏观连续模型,模拟上下游信号灯作异步周期变化的协调信号灯路段的交通流动,经数值计算比较,选择改进Ｍｕｒｍａｎ格式求解．结果表明：改进Ｍｕｒｍａｎ格式能准确捕捉交通流中无振荡“激波”位置．     

西方文论研究与翻译视野

近期,国内的西方文论研究开始出现反思趋势,西方文论本身也成为反思对象之一。反思过程中出现了对西方文论的一些误读,原因之一在于部分研究者可能忽略了自身研究奠基于译文之上的事实,将译文直接等同于原文,因而也可以说是翻译视野的缺失。在西方文论研究中引入翻译视野,即意味着基于译本进行的文论研究须与译本拉开一定的距离。翻译视野又包括转换意识、语境意识、差异意识三重内涵。转换意识即意识到译文是语言转换的结果,同时意识到由转换所导致的信息不对称性;语境意识是指意识到西方文论扎根的特定时空的文化形态及理论家的认知形态;差异意识是指对原作与译作所处时空差异的意识。翻译视野促使我们主动去了解西方文论在原语语境中的起源及发展,辩证地探讨其在译语语境中的适用性,有助于我们在西方文论译介热持续上升的今天,真正深入地理解与反思西方文论的内涵,更好地吸取其精华,批判其糟粕,推动中国文学与文化研究的发展,建构中国自己的理论体系。     

区域旅游业碳排放的时空差异——以山东省为例

碳排放问题是区域旅游业发展不可忽视的环境问题之一。根据相关统计数据,按照"自下而上"分析法对2000-2015年山东省旅游业碳排放进行定量估算,并采用系统聚类法将山东省旅游业碳排放划分为高、中、低三类碳排放区域,具体剖析山东省旅游业碳排放的区域差异。结果表明:（1）碳排放总量、游客人均碳排放量和碳排放强度是衡量区域旅游业碳排放的重要指标。2000-2015年山东省旅游业碳排放总量持续增长,而游客人均碳排放量和旅游业碳排放强度则逐年下降,旅游业节能减排取得一定成效。（2）区域旅游业三大部门碳排放存在明显差异,旅游交通是区域旅游业碳排放的主要来源,旅游活动碳排放增长速度最快,而旅游住宿碳排放波动性较大。2000-2015年山东省旅游业累积碳排放总量为4 764.05万吨,其中,旅游交通、旅游住宿、旅游活动三大部门占比分别为66.52%、25.80%、7.68%。（3）区域旅游业碳排放水平空间差异显著。从空间分布上看,山东省旅游业碳排放总体上呈现东高西低、北高南低的特征,旅游业碳排放总量呈现出东部沿海 > 鲁中地区 > 鲁西地区,游客人均碳排放量和旅游业碳排放强度则是东部沿海 > 鲁西地区 > 鲁中地区;从碳排放指标上看,山东省大多数地市位于中高旅游业碳排放的行列,东部沿海是旅游业碳排放的主要来源区。     

Coalition-building and the forging of solidarity across difference and inequality

Diverse coalitions hold great potential for social movements, but they also face tremendous challenges. In this article, I review the literature on diverse alliances with a focus on how trust, commitment, and ultimately, solidarity can be developed and sustained across divides. The article begins by discussing the needs of diverse alliances to build trust and commitment, and the coalitional characteristics deemed vital for doing so, with a focus on shared neutral space, ongoing interaction, and social ties and bridgebuilders. Five coalitional processes and practices are identified and discussed that have been empirically found or theorized to be imperative for cultivating solidarity across difference and inequality. These processes include (a) uniting around shared principles while engaging difference; (b) acknowledging and managing inequalities; (c) making space for each other; (d) attention to managing conflicts; and (e) actions that confirm the shared commitments and negotiated identity. I conclude by evaluating the state of research on developing and sustaining alliances across divides.     

文化差异视角下的英汉颜色词的联想

不同的民族由于地理、民俗、宗教及价值观念等方面的差异,在表达同一概念时,词汇被赋予了许多的联想意义。掌握汉英颜色词不同的文化联想意蕴,并且了解产生这些不同联想意义的原因不仅有利于提高英语学习水平,还能促进和加强中西文化之间的交流。     

用工业CT技术测量储层岩芯饱和度分布

认识储层岩石中含油饱和度及饱和度分布,对驱替机理的深入研究是非常重要的。为了搞清储层岩石在驱替过程中的饱和度分布情况,应用工业CT技术,提出了一种储层含油岩芯被驱替后的饱和度分布的CT密度差测量方法。在岩样的同一断面,分别对干岩样、饱和岩样及在驱替后的岩样进行CT扫描,重建相应的断层图象,测量所建图象的灰度值,计算出相应的密度值,用密度差法计算出饱和度及其分布值。在γ射线工业CT机“CD-300BG”上对某油田岩样进行了实际测量,获得的结果说明,采用CT密度差法测量饱和度分布是有效的。该方法与常规驱替法相比较,具有快速、精度高、无损岩样和能模拟地层状态测量等特点,是油田开发、油藏描述和地层评价的一种新的有效方法。     

非期望产出下我国能源消耗产出效率差异研究

提高能源消耗产出效率是新常态下经济发展的必然趋势，随机扰动和外部环境是研究能源消耗产出效率不可回避的问题，而传统的DEA模型无法剔除非期望产出对效率值的影响。本文通过构建四阶段Bootstrap-DEA-Malmquist模型，采用1990~2014年的省际面板数据作为样本数据，通过松弛指标调整能源投入，剔除外部环境和随机因素对能源效率和能源全要素生产率的扰动，并借助Bootstrap随机抽样法进一步减小由于样本差异造成的影响，从静态和动态两个维度测算了中国能源消耗产出效率和全要素生产率。研究发现，外部环境和随机扰动对能源效率的估算具有显著影响，剔除外部环境影响因素后得到的能源效率值、技术效率变化以及全要素生产率变动均有不同程度的下降，而调整初始投入后的技术进步值有所上升。此外，考虑环境因素时，能源效率值下降，但是进一步运用Bootstrap随机抽样法消除随机因素的影响后，能源效率值有所上升。本文的主要贡献在于将环境因素和随机因素从能源效率与能源全要素生产率的测算中剥离，获得更为准确的能源效率值和能源全要素生产率值。     

From the Digital Divide to the Connectivity Dividend Difference: A Connectivity Capital Perspective*

The access divide was once the basic form of the digital divide. The development of Internet infrastructure has narrowed the access divide and increased application coverage, but it has also touched off a connectivity dividend difference. Taking the online market as an example, we examine the sources of the dividend difference and the factors influencing it with in a connectivity framework. We found that the narrowing of the access divide has resulted in enhanced connectivity and platform development, giving people the chance to benefit from transforming the various assets in which they have previously invested into differentiated compound connectivity capital. In the course, the scale and rate of the conversion are affected by two multiplier effects and especially by online platforms. The process is ultimately expressed in the dividend difference.     

A New Feature Selection Method for Text Categorization of Customer Reviews

With the rapid development of e-commerce, online consumer review plays an increasingly important role in consumers’ purchase decisions. Most research papers use the quantitative measures of consumer reviews for statistical analysis. Here we focus on analyzing the texts of customer reviews with text mining tools. We propose a new feature selection method called maximizing the difference. Various classification methods such as boosting, random forest and SVM are used to test the performance of the new method along with different evaluation criteria. Both simulation and empirical results show that it improves the effectiveness of the classifier over the existing methods.     

Decency and the Liberal International (Dis)Order: Moral Limits and the Possibilities of a Global Pluralist Politics

This article analyzes the tension between the liberal ideals of freedom and equality and cultural difference. It argues that decency has become intertwined with the fragility of the liberal international order by providing a problematic threshold of international justice. The idea is that as global pressures mount for protecting the human dignity of persons/peoples, they also congeal or harden decency’s political and social constraints (impartiality, neutrality, and basic rights enforcement) on engaging others. Decency as a moral threshold of international justice, the article claims, has become static or a self-reinforcing limitation. This contradictory decency/dignity dynamic of the liberal international order not only explains how states have aggressively asserted their interests by absorbing these constraints, but also how politics can limit the pragmatic potential to bridge the various social gaps in values and belief systems. This article seeks to conceptualize a pluralist ethos that shows how such constraints can be reimagined as, or turned into, the conditions of possibility/freedom that transition us to a global pluralist politics. It concludes with a discussion of the refugee crisis and Islamism, showing how both cases resonate the felt stigmatization and alienation within the liberal international order.