Study of Rice Husks and Expanded Polystyrene Composites for Construction Applications

In the current context of environmental challenges, this study focuses on developing innovative and eco-friendly composites using rice husk and recycled expanded polystyrene. This dual-responsibility approach valorizes a by-product like rice husk, often considered waste, and reuses polystyrene, a plastic waste, thereby contributing to CO2 emission reduction and effective waste management. The manufacturing process involves dissolving recycled polystyrene into a solvent to create a binder, which is then mixed with rice husk and cold-compacted into composite materials. The study examines the impact of two particle sizes (fine and coarse) and different proportions of recycled polystyrene binder. The results show significant variations in the mechanical characteristics of the composites, with Modulus of Rupture (MOR) values varying from 2.41 to 3.47 MPa, Modulus of Elasticity (MOE) ranging from 223.41 to 1497.2 MPa, and Stiffness Coefficient (K) from 5.04 to 33.96 N/mm. These characteristics demonstrate that these composites are appropriate for various construction applications, including interior decoration, panel claddings, and potentially for furniture and door manufacturing when combined with appropriate coatings. This study not only highlights the recycling of agricultural and plastic waste but also provides a localized approach to addressing global climate change challenges through the adoption of sustainable building materials.

Application of Bioengineering in Construction

Bio-cement and bio-concrete are innovative solutions for sustainable construction, aiming to reduce environmental impact while maintaining the durability and versatility of building materials. Bio-cement is an eco-friendly alternative to traditional cement, produced through Microbially Induced Calcium Carbonate Precipitation (MICP), which mimics natural biomineralization processes. This method reduces CO2 emissions and enhances the strength and durability of construction materials. Bio-concrete incorporates bio-cement into concrete, creating a self-healing material. When cracks form in bio-concrete, dormant bacteria within the material become active in the presence of water, producing limestone to fill the cracks, extending the material’s lifespan and reducing the need for repairs. The environmental impact of traditional cement production is significant, with cement generation accounting for up to 8% of global carbon emissions. Creative solutions are needed to develop more sustainable construction materials, with some efforts using modern innovations to make concrete ultra-durable and others turning to science to create affordable bio-cement. The research demonstrates the potential of bio-cement to revolutionize sustainable building practices by offering a low-energy, low-emission alternative to traditional cement while also addressing environmental concerns. The findings suggest promising applications in various construction scenarios, including earthquake-prone areas, by enhancing material durability and longevity through self-repair mechanisms.

Evaluation on Ecological Urban Construction of Suzhou City in China from Outward Appearance to Inner Essence

After the discussion of accomplishments of ecological urban construction in Suzhou City, the current ecological urban construction in Suzhou has been compared with the national standard for ecological urban construction. According to the actual situation of Suzhou urban construction, the health evaluation index system and standards for urban eco-system have been established based on natural, economic and social sub-system. By using mean square deviation, indexes' weights have been identified. After the quantitative research on the health condition of urban eco-system in Suzhou City from 2004 to 2008, it has found key problems existing in its ecological urban construction. The results show that Suzhou urban eco-system develops well in general, but the three sub-systems are coordinated with each other moderately, and natural sub-system suffers severe pressure.

Research on Ecological Livable Urban Construction in Small and Medium Cities of China——A Case Study of Huaihua City

The paper has analyzed the concept of ecological livable city,considered that small and medium cities as the major pattern of China's urbanization are more likely to become ecological livable cities compared with large cities.Based on the actual situation of Huaihua City,it has pointed out its advantages in transport,ecology,foundation and national characteristic,and analyzed existing problems in the construction of ecological livable city from the perspective of urban eco-environment.It considers that its urban ecological planning is to be perfect,urban environment pollution is still serious and people's consciousness for environmental protection is to be improved.On this basis,relevant suggestions have been proposed for ecological livable urban construction in Huaihua City,emphasizing it should perfect urban ecological planning,enhance environmental pollution treatment,intensify environmental protection education,and improve people's consciousness for environmental protection.

An Eco-translatological Perspective on Shenzhen's International City Image Construction:Public Signs Translation as an Example

After the 26th Universiade,Shenzhen has been striving to build a balanced and harmonious translational eco-environment,and make Public Signs translation play a positive role in the construction of international city image.Meanwhile,Shenzhen has formed relative completed systems in beforehand prevention and subsequent punishment in public signs translation.However,there is also a long way to go to perfect the translation eco-environment construction.

Ecoeconomic construction and sustainable development of natural scenery cities in China

As a country of rich natural resources, China has many beautiful natural scenery resorts. Due to rapid growth in tourism, cities of various sizes have been formed with the development of these scenery resorts. The rapid growth of these cities, while bringing benefits to local people, also produces some serious problems. In this paper, general introduction is given to the studies of natural scenery cities in China. Types and functions of scenery cities in China are discussed, and their relation to tourism and urban ecosystem is defined. Special attention is given to the local and nationality factors in the construction of these cities. The problems the people are now facing in the construction of the natural scenery cities are analyzed and solutions presented.

A Philosophical Review of China's Eco–Countryside Construction

Currently, rural China is committed to constructing beautiful countryside and promoting ecological progress. However, this process is accompanied with a distinct misconception that eco–countryside construction only serves as a solution to rural environmental pollution and a tool for ecological progress, instead of a strategy for the innovation and development of the Chinese economy. China's eco–countryside construction concerns its future economic development and transformation, as well as the improvement of the rural environment. This eco–countryside construction should be supposed to be a great strategy to boost China's ecological progress. It is designed to bring about new economic drivers and rural prosperity. From a philosophical perspective, this paper reviews China's eco–countryside construction, specifies its strategic value to economic development, and practical significance to the innovation of the Chinese economy.

Call For Papers: The 2019 China Eco-civilization Construction Guiyang Forum

The report of the Nineteenth National Congress of the Communist Party of China clearly points out that we should speed up the reform of the ecological civilization system and build a beautiful China.Guizhou Province is one of the first demonstration zones of ecological civilization established by the State Council and themacro-ecological strategy is one of the three strategic actions of Guizhou Province.

Construction Planning of Qingyang National Eco-county in Anhui Province

Abstract On the basis of basic conditions of Qingyang County,beneficial and restrictive factors for the construction of eco-county were analyzed,guiding concepts and planning objectives of the eco-county construction were elaborated.Ecological construction of Qingyang County dominated by eco-county,ecoagriculture,eco-industry and eco-tourism,and also the ecological implementation mode of planning were introduced,the safeguarding mechanism was given.

Connotations and Evaluation System of Urban Eco-River Construction

Eco-river construction is an important part of the urban river renovation, and also a hot research topic for the present river renovation. From the perspective of functional features of urban rivers, connotations of ecological river construction were further explored, evaluation index system was established on the basis of objective layer, criterion layer and index layer, so as to provide theoretical guidance and technical references for the ecological construction of urban rivers.

Research Review on Construction and Protection of Tibet Eco-environment

Tibet is not only famous ＂ the roof of the world＂ but also is recognized as the ＂ third pole of the earth＂ by the whole world, with very im-portant significance in construction and protection of plateau eco-environment. In Qinghai - Tibet Plateau, there are abundant wild animal and plant resources and a lot of high-mountain mineral resources, and water resources, light resources and characteristic agriculture and animal husbandry resources have broad development and utilization space. When Tibet economy and society improve and develop, eco-environment construction and protection work is also mentioned in the schedule. In this paper, the history, status quo and prospect of Tibet eco-environment protection and development are explored, which could promote the understanding on Tibet eco-environment construction and protection in academic world.

Environmental Impact Assessment and Eco-civilization Construction of Urbanization in China

As major policy put forward by the new leadership of China, urbanization will play an irreplaceable role in improving people＇s living standards and guaranteeing sustainable growth of economy. But in the process of urbanization, there are many problems, such as environmental damage and ecological imbalance. Therefore, organic combination of eco-civilization construction and urbanization will be the key solving the problem. As one of preconditions of planning and project, environmental impact assessment will also play pivotal role in eco-civilization construction of urbani- zation in China. We detailedly introduce environmental impact assessment, and put forward how to effectively use environmental impact assessment for the eco-civilization construction of urbanization in China.

Eco-civilization construction practice mode: An international comparative study

This paper is devoted to the analysis and comparison of eco-civilization construction modes in China and major developed western countries, which mainly focuses on the typical advanced related ecocivilization construction modes in different countries, cities or counties. Finally, it makes a comparative analysis at home and abroad, draws the conclusion and puts forward some main countermeasures and suggestions for China's eco-civilization construction on the basis of the existing research.

Dynamic Comparison and Trend analysis of Southeast Guizhou's Experimental Area of Eco-civilization Construction and the National Eco-efficiency

In order to better understand the development level of eco-efficiency in Southeast Guizhou's experimental area of eco-civilization construction,we conduct dynamic comparison research of its eco-efficiency and the national eco-efficiency,using single ratio method based on the ecological footprint model,to grasp the gap between its eco-efficiency and the national eco-efficiency,so that we can take appropriate countermeasures to improve eco-efficiency. The results show that in the period 1978-2010,the eco-efficiency in Southeast Guizhou's experimental area of eco-civilization construction was always lower than the national eco-efficiency; the long-time average annual value of its eco-efficiency was less than one half of that of the national eco-efficiency,with the absolute gap of 1 630. 095 yuan /hm 2 ,and the gap tended to widen year by year in the period 1978-2002 ( the gap increased from 276. 551 yuan /hm 2 in 1978 to peak of 3 227. 713 yuan /hm 2 in 2002,with an average annual increase of 118. 047 yuan /hm 2 ,and especially after 1992,the gap was particularly evident,with an average annual increase of 194.771 yuan/hm 2 ) ,but from 2003,the gap between the two tended to decrease. Based on the prediction results of grey system,in the period 2011-2025,the gap between the eco-efficiency in Southeast Guizhou's experimental area of eco-civilization construction and the national eco-efficiency will gradually narrow,and from 2019, the eco-efficiency in Southeast Guizhou's experimental area of eco-civilization construction will be higher than the national eco-efficiency.

生态女性主义的技术审视:批判、建构及理想

生态女性主义是一种从生态的角度来理解女性的人文思潮,它基于女性的自觉和本能,聚焦机器技术、军事技术和生育技术三个方面批判现代技术的资本主义父权属性。生态女性主义立足生态和生存进行技术建构,提倡以“生存生产”为内涵的技术经济模式、以“生态民主”为目标的技术政治理念,最终推动以“妇女友好”为主旨的技术文化实践。生态女性主义认为,理想的技术不仅是生态均衡的,也是性别均衡的,其最终指向是以妇女解放为前提的全人类解放。

《工业企业生态文明建设管理体系规范》研究与探索

本文论述了研究与制定《工业企业生态文明建设管理体系规范》标准的背景和意义、工业企业生态文明建设的内涵及管理体系的构建思路,以及《工业企业生态文明建设管理体系规范》的核心技术内容。重点关注针对工业企业生态文明建设目标责任体系、生态制度体系、生态安全体系、生态经济体系、生态文化体系等核心主题及其相关实质性议题的策划、运行控制、绩效评价和持续改进。

《工业企业生态文明建设水平评价规范》研究

本文论述了研究与制定《工业企业生态文明建设水平评价规范》标准的背景和意义、生态文明建设评价相关标准的比对分析、工业企业生态文明建设水平评价规范的核心技术内容,包括:核心概念、评价原则和基本要求、评价指标体系及规范要求、评价指标计算方法、评价方法及等级划分等内容,旨在为工业企业生态文明建设水平评价工作提供标准化的技术支撑。

新时代西藏生态文明建设的理论构建

西藏具有重要的生态战略地位,但其生态系统极为脆弱,生态文明建设重要性和艰难性并存。本文在总结西藏生态环境保护与建设历史过程的基础上,对照习近平生态文明思想,构建了新时代西藏生态文明建设的生态系统论、生态平衡论、生态风险论、生态价值论和生态发展论,探讨西藏生态文明建设内在的理论逻辑关系,为西藏生态文明建设走在全国前列提供支撑。

关于黄河与河套古湖河湖关系演变的假说性分析——兼论对黄河内蒙古段生态治理的启示

黄河曾经在流经河套盆地过程中形成吉兰泰、乌兰布和、巴彦淖尔、呼包4个古湖,且在高湖面时期连成统一的“河套古大湖”,其后4湖分离并分别演绎了自己的河湖关系。在研习前人相关成果基础上,通过建立整体假说性解释框架,试图按照历史顺序与逻辑顺序统一的要求对该河段河湖关系的演变过程进行重建,并为与之相关的生态系统的治理提供借鉴。研究认为:主河道构建是黄河主动实施填湖、建堤、造槽并“甩湖”的过程与结果;冲积扇是黄河填湖的主要模式,而冲积扇顶附近凸起则是湖口淤塞、移动并最终筑成黄河自然堤的主要原因;巴彦木仁与磴口两地控制点对形成鄂尔多斯一侧黄河主河道起到了关键性作用;黄河西派在高湖面期间从巴彦木仁湖口注入吉兰泰-乌兰布和古湖,与从北面入湖的黄河水共同促成贺日木西尼古砂嘴及其延伸砂脊生长,并在低湖面期将这两个湖分离。基于对所述黄河历史过往的认识,须尽可能立足高效集成利用有限水资源这一观念,将减灾与适度重造沿河湖泊和绿洲结合,营建可持续的内蒙古段黄河生态体系。

鱼类行为生态水力学模型研究现状与发展趋势

水利工程运行与鱼类资源保护如何协同发展,是我国水电开发与水生态环境保护需要重点开展的研究,其中基于鱼类行为学、生态水力学及计算机科学等多学科交叉融合的鱼类行为生态水力学模型为水电开发背景下鱼类行为响应及其生境质量演变提供了研究技术及评估新方法。鱼类运动模型的基本原理为以水动力环境为基础,通过融合鱼类行为规律实现鱼类运动过程的模拟。本研究系统调研和梳理总结了近20年来国内外鱼类行为生态水力学模型的相关研究,重点聚焦模型如何准确构建及合理运用。首先介绍了模型的基本结构及主要组成要素,重点阐述了不同生境尺度中鱼类行为规则设置时考虑的因素,包括过鱼设施微生境、坝区水环境及河流生态系统;然后详细剖析了鱼类运动模型科学构建及运用过程中的难点,包括鱼类行为规则的复杂多样性、行为模型与水动力模型的融合以及模型的有效和合理运用;最后从人工智能算法、多尺度与多维度信息融合以及模型对生境要素的预测运用3个方面对未来运动模型研究进行展望,为开展符合我国坝情、水情及鱼情的鱼类行为生态水力学模型研究工作提供一定的科学依据。