基于深度卷积神经网络的语音降噪研究

目的为了提高实际工作中获取到的音频资料中语音的质量,降低噪声对语音质量及可懂度的影响,提出了一种基于深度卷积神经网络的语音降噪模型。方法该模型通过卷积、加偏置、批量归一化、Relu激活的多层循环结构,能够有效地对低信噪比条件下语音中的洗衣机噪声、鼓掌噪声、汽车内部噪声等多种常见的环境噪声进行降噪处理。结果最终含噪语音经过模型处理后的MOS评分达到3.91分,其中最高分4.05分,最低分3.81分。结论该模型能够切实提高含噪语音的质量及可懂度,对于实际的公安工作、智慧警务建设、语音分析、语音文本识别等具有重要的意义和价值。     

An interview with Eben Venter: Trencherman and environmentalism in South Africa

This interview explores the role of environmentalism – specifically as it relates to meat and agriculture – in the literature of South African writer Eben Venter. As discussed in the interview, Venter’s novel Trencherman, through its envisioning of a post-apocalyptic South Africa, serves as an especially productive text for examining the interplay of colonialism and ecological violence.     

环境警察权的构成要素

在环境警察权的宏观结构中,权力主体、权力内容及其运行规则是主要的构成要素.环境警察权的权力主体是环境警察机关及其所属的环境警察,其机构设置及人员素质会对环境警察权的实际运行产生较大影响.环境警察权的权力内容不宜过多,应仅限于环境执法,主要包括环境刑事执法权、环境行政执法权和环境监督管理权.而环境警察权的行使则必须遵循法定性原则、有限性原则、公益性原则、程序性原则和责任性原则.     

论作为概念群落的环境权

环境权是环境法学研究的重课题。对环境权的界定涉及对环境法律关系的主体、人与自然之间关系的法学意蕴、传统权利概念等重理论问题的重新理解。环境权不是一个单一的法律概念,而是由三种权利类型构成的统一整体,这三种权利分别为：环境的权利、环境物权、环境人权。三种权利的统一基础则在于通过法律权利衡平人与自然之间和谐的共生关系。     

Environmental pollution: corporate crime and cancer mortality

Corporate crime remains more costly and arguably more harmful than street crime and such harms include environmental, air, and water pollution resulting in increasing cancer mortality rates around the globe. More importantly, these corporate crimes are global in nature and facilitated by transnational corporations’ capture of the USA Environmental Protection Agency.     

Council of Europe/UNEP,Pan‐European biological and landscape diversity strategy,Invasive Alien Species

Abstract

The notion of sustainable development has become, over the last fifteen years, an integral part of international environmental law and policy. It is recognition that environmental issues do not exist in a vacuum, but rather arc part of much wider structural issues involving both economic and social dimensions. However, does this concern for sustainable development now mean that protecting the natural environment is no longer about ecological conservation per se, but rather is simply abour ensuring an adequate environment to maintain economic development? And if so, what of those environments where the economic value is a secondary consideration? Or where human activity has a disproportionate effect? Can sustainable development be interpreted in a way that reconciles these seemingly opposite demands? This paper examines these issues from the perspective of the 1991 Madrid Protocol on Environmental Protection to the 1959 Antarctic Treaty. It will suggest that sustainable development is a broader concept than one that simply requires an instrumental approach to environmental protection. In fact, the paper will conclude that sustainable development is a relatively meaningless notion if it docs not also contain a strong element of environmental conservation, and not only in such ecologically important areas as Antarctica.     

The ‘make or buy’ decision in private environmental transactions

A theoretical framework combining the two branches of TCE, i.e., the governance branch (Williamson 2005) and the measurement branch (Barzel 2005) may explain the choice of the governance structure for private environmental transactions. Four case studies, i.e., the market for pure air in polluted cities, the contractual arrangement between La Esperanza and the Monteverde Conservation League, the case of the French mineral water bottler Vittel and the case of land ownership by land trusts are briefly developed in order to support the theoretical framework. Special attention is devoted to the presence (or not) of a 3-D (defined, defended and divestible) property rights system in interaction with the juridical system (civil law vs. common law) and its influence on the way environmental property rights are likely (or not) to be re-arranged. Lessons and policy implications are drawn in order to foster research on these challenging issues.

Generational replacement and Green party support in Western Europe

Over the past decades, electoral support for Green parties has gradually increased in Western Europe, especially among young people. This begs the question whether there are systematic differences between generations in support for Green parties, and whether there are also life-cycle effects. We answer this question by separating age, period and cohort effects on Green party support using CSES data covering 40 elections in 11 Western European countries. We find that when controlling for period and age, each new generation is more supportive of the Greens than the generation before. We also find negative age effects. While Green parties can expect to benefit in the future from generational replacement, the consequences of aging societies are to their disadvantage.     

城市环境精细化治理的现实逻辑与优化路径——基于需求-回应的分析框架

随着改革开放以来城市化的不断推进,中国的城市建设和治理在取得显著成绩的同时也面临着日益严峻的环境挑战和压力。解决城市环境问题和满足城市居民对美好环境的诉求需要不断推进城市环境精细化治理。然而,当前城市环境治理仍然存在着治理理念相对滞后、治理法制不够健全、治理结构有待优化、治理过程较为粗放、治理绩效评估有所弱化等问题,阻滞了城市环境精细化治理的推进。这构成了城市环境精细化治理的需求层面。为此,应根据城市环境精细化治理的需求,采取有力的优化措施予以回应。     

促进我国环境产业发展的政策取向

在加入WTO更加开放的背景下,我国超越“环保产业”的狭义内涵,发展与国际接轨的更加广义的“环境产业”已是大势所趋。环境产业是政策依赖性较强的产业,因此,必须改变我国相关政策体系对环境产业促进作用低效的现状,围绕培育环境产业市场体系和机制、扶持有效供给、拉动有效需求等,完善政策体系,提高政策的有效性。这是促进环境产业实现跨越式发展,成为我国新技术创新的动力和新的生产力增长点的重要基础。