城市生活垃圾的预处理

对城市生活垃圾进行有效的预处理,不仅可以减少处理量、提高处理效果,而且可以回收其中的资源性物资.因垃圾组分及处理方法的多样性,只能根据实际情况灵活选取工艺手段,作者指出了垃圾的科学分类和有选择分选回收是预处理中最重要的步骤.     

西安市城市生活垃圾处理政策分析

西安市为了解决城市生活垃圾问题，地方政府纷纷出台各种政策、法规，加强城市生活垃圾的管理，为垃圾的多样化处理提供了可能．政策的方向也要随之改变。1、逐步完善西安市城市生活垃圾处理的法律体系和规划；2、加快垃圾处理机构和处理设施的建设；3、完善垃圾处理费的征收和管理；4、加强垃圾分类回收；5、加强垃圾分类回收的宣传教育。     

国内外生活垃圾处理技术的研究现状及发展趋势

目前,城市生活垃圾的处理方法主要有堆肥、填埋和焚烧3种方式。通过对国内外以此3种方式处理处置垃圾技术的发展状况的阐述,提出提高垃圾回收和循环利用及多种方法并存是生活垃圾处理的发展趋势。     

城市生活垃圾资源化探讨

对城市生活垃圾资源化进行了探讨.以垃圾的资源化为方向,提出了基于垃圾分类(分选)的综合处理技术,即对于易降解的有机生活垃圾采用厌氧消化的处理方式,可以得到绿色能源和肥料;不易降解的部分进行回收或生产废弃物复合材料.卫生填埋只能作为垃圾产业化处理的最终处置方式.     

垃圾分类回收是根治垃圾污染和发展循环经济的必由之路

面对城市生活垃圾数量的迅速增长和成分的日益复杂,传统的垃圾处理方法暴露了它的局限性。如何有效地处理生活垃圾,发展循环经济,是我们必须面对和解决的重大问题。本文在分析垃圾排放和污染状况、现行处理方法的基础上,提出了垃圾的分类回收和处理是根治生活垃圾污染、发展循环经济的必由之路这一基本观点,从政策法规、管理体制、科技投入等方面提出了几点建议。     

北京市生活垃圾分类体系改善对策与建议

城市生活垃圾污染问题是全社会关注焦点,它涉及到民众的身体健康和城市可持续发展.通过对北京市垃圾分类体系,即分类收集、分类运输、分类处理和分类回收等现状的研究,发现北京市生活垃圾分类体系管理还有许多地方可以优化与改进.结合北京市的实际情况,从管理、体系建设和运行机制3个方面提出北京市生活垃圾分类体系改善对策与建议.     

重庆市生活垃圾分类处理现状研究

"垃圾围城"已经成为城市生态环境保护中至关重要的问题之一。城市居民的垃圾分类处理与回收利用关乎城市的治理水平,对破解"垃圾围城"困境、改善城市生态环境、减少温室气体排放、应对国家能源短缺等问题具有重要意义。本文在城市生活垃圾分类处理意义的研究基础上,分析了重庆市生活垃圾分类处理现状,总结其存在的问题,为重庆市进一步推广垃圾分类处理提供理论参考。     

德国城市生活垃圾分类方法研究

城市生活垃圾因其成分复杂、数量大、处理困难等问题，对环境的压力越来越大。解决城市生活垃圾的根本出路在于提高垃圾的回收利用率，减少垃圾的产生量，以减少垃圾填埋量和控制填埋用地。     

唐山城市生活垃圾资源化利用研究

分析了河北省唐山市生活垃圾处理处置现状,阐述了应当从法规政策体系、垃圾分类回收体系;加强宣传教育力度、改善垃圾收集方式、强化资源化保障体系以及垃圾从量收费体系等方面建立和完善生活垃圾资源化利用制度。认为,要实现唐山城市生活垃圾资源化利用,需建立功能齐全、分工明确、覆盖全面,具有网络互动机制的城市生活垃圾资源化处置和利用体系,构建全新的生活垃圾综合处理模式。     

城市生活垃圾的处理方法

本文综合介绍了城市生活垃圾处理、回收再生利用的方法，包括填埋、焚烧、堆肥及资源化综合处理技术等，比较了各种方法的利弊、优缺点。采用资源化综合处理技术来处理城市生活垃圾。可以较好地实现减量化、无害化和资源化处理的目的。     

On the Major Transformation of the Asia-Pacific Regional Structure北大核心CSSCISSCI

Recent years have witnessedsignificant changes in the Asia-Pacific regionalstructure featuring the shift in power balance among related countries as well as adjust-ments in their respective regional strategies. So what is the prevailing trend in thistransformation and what kind of regional order will likely emerge in the future？ To an-swer these questions, the paper tries to explore the following dimensions： the evolvingregional context, shift in power balance and power conversion, geo-political and geo-e-conomic developments and interactions between them, and evolving regional order. Asthe study shows, the broadening of regional geographical scope, the rise in the numberof actors involved, as well as changesin the relations among them, have combined tocast a pluralistic and complex flavor to the regional structure. While the power balanceamong China, the United States and Japan shifts, and power conversion is also occur-ring. China and Japan are paying increasing attention to their security roles, whereasthe United States under the Obama administration laid more stress on expanding itsgeo-economic clout. In spite of the intensifying geopolitical competition among China,the United States and Japan in recent years, a Sino-US strategic compromise-whichholds the key to regional geopolitics-isother front, some kind of geo-economicmore likely to take place in the future. On thecooperation will probably emerge. In the longerterm, it will be the geo-economic trend thatwill prevail over the geopolitical trend inthe region. Finally, the future evolution of regional order wiI1 mainly follow the eco-nomic logic, accompanied by the dilutionof its hegemonic and hierarchical nature.Hence, a pluralistic and complex regional community will emerge.     

Organization and incentives in the age of sail

The British Navy in the age of sail was the most successful bureaucracy of its time. Its organization and incentive structures differed importantly from contemporaneous private sailing ventures, but closely resembled those of today’s large corporations. To induce efficient effort, the navy used a hierarchical tournament, in which sailors competed for higher pay that came with promotions based on relative performance. Promotion probabilities, the option value of future promotions, and the higher effort required of men in higher ranks and on larger vessels, combined to yield a highly skewed pay structure.     

The German Hanse and Bergen – new perspectives on an old subject

Abstract

The Hanseatic League and her kontors (trading posts) were an integral part of the medieval trade system in Northern Europe. Hanse merchants dominated many markets in this region and managed to maintain a monopoly-like role in towns like Novgorod and Bergen for many centuries. Consequently, one focus of historical research about the Hanseatic League lay on the mechanisms that enabled the Hanse merchants to keep that strong of a position for such a long time.

This article is part of the discussion about this topic. Based on Lübeck merchants with business interest in the Norwegian town of Bergen, the so-called Bergenfahrers (Bergen travellers), it will give new insights into the Hansards' economical and social organization. The three main points are (a) the integration of the Bergen market in the Hanseatic trade network as an intermediary trading place on the vivid East–West route of Hanse trade; (b) the importance of the Bergenfahrers within the Hanse merchants' economical, social and political networks; and (c) the structure of the Bergenfahrers network patterns in the late Middle Ages.

In addition to new insights into the important role of Bergen and the Bergenfahrers within Lübeck's and the other Wendish Hanse towns' trading system, this articles provides further proof for the usefulness of the methods of Social Network Analysis in medieval economic research.     

Financial Reporting and Trade Credit: Evidence from Mandatory IFRS Adoption*

We investigate the effect of mandatory IFRS adoption on trade credit. We document that firms in countries that adopt IFRS receive more trade credit from their suppliers, consistent with improved financial reporting quality and comparability playing a role in facilitating informal financing. This increase is larger for countries with a low level of societal trust, a poor pre‐IFRS‐adoption information environment, and stronger legal enforcement. These cross‐sectional results suggest that the conditions under which higher‐quality information is made publicly available affect suppliers' decisions to provide trade credit. This increase is also larger for firms with greater exposure to foreign markets, a finding that highlights the importance of more comparable international financial reporting standards in facilitating cross‐country trade credit. We also find that IFRS adoption has a stronger positive effect on trade credit for firms with greater liquidity needs. Finally, we find that firms in countries that adopt IFRS also extend more trade credit to their customers. Overall, our results support the notion that financial reporting can have a causal effect on trade credit.     

区域工业产业竞争力指标体系的构建及其评价方法研究

文章通过建立省级区域工业产业竞争力评价指标体系,设计竞争力模型,利用SPSS统计软件,对各省工业产业竞争力进行了评价测定。     

Penetration and Post-infection Development of Meloidogyne Incognita on Tobacco as Treated by Rhizobacteria Pseudomonas Fluorescens Strain P-72-10

The bio-control potential of rhizospere bacteria Pseudomonas fluorescens against plant-parasite nematode had been demonstrated. P. fluorescens had shown the effect to enhance tobacco resistance to root-knot nematode Meloidogyne incognita. Inoculation with P. fluoreseens in tobacco could lead to significant reductions in the number of juveniles that penetrated tobacco root and further life stage development of the juveniles. The number of juveniles penetrated into tobac- co root in treatment with P. fluorescens is significantly different from CK at 2DAI, 6DAI, 8DAI and 10DAI. Significant reduction and delayed development of juveniles that penetrated into tobacco root and treated were observed in treatment at 14DAI, 21DAI, 28DAI and 35DAI. In addition, P. fluoreseens treatment leads to a significant reduction in the number of eggs per egg-mass at 35 DAI. The results show P. fluorescens induced a continuously suppression on root-knot nema- tode M. incognita throughout their entire early infection phase of root penetration, subsequent life stage development and reproduction.     

文化传播中电视暴力对青少年侵犯行为的影响

伴随当代传媒产业的蓬勃发展,暴力也成为影视艺术基本的叙事类型及消费主义文化日趋盛行的现实语境。＂电视暴力＂是作为＂媒介暴力＂的一个子概念存在的;从文化传播看电视暴力,其覆盖面大,且易于接触;电视暴力对受众特别是青少年的影响巨大而深刻。要从制作者、传播者和观众三个方面的自律出发,建立适应我国国情的影视分级制。