Life Cycle Assessment of Green Buildings Based on Grey Clustering Method

To promote and develop green buildings,a standardized,applicable and easily operable index system for the assessment of such buildings was established on the basis of life cycle cost effectiveness.From the perspectives of environment-friendly materials,water resource environment,energy and environment,quality of indoor and outdoor environment,operation and management,and economical efficiency of life cycle,a modified index system was built,AHP was applied to obtain weights of indexes,evaluation methods of the grey system were used to evaluate green buildings,case study was adopted to verify the practicability and scientificity of the method.The results showed that Grey Clustering Method was an objective and reliable tool to evaluate green buildings,the calculation was simple,practical and easily operable,and moreover,the assessment process could be optimized by computer programming to improve its efficiency and precision.

Green evaluation of microwave-assisted leaching process of high titanium slag on life cycle assessment

A greenness evaluation index and system of microwave-assisted leaching method were established.The effects of the life cycle assessment variables,such as the resource consumption,environment impact,cost,time and quality,were investigated,and the concept of green degree was applied in the production of synthetic rutile.An analytic hierarchy process was utilized to assess matrix of greenness evaluation.The Gauss-Seidel iterative matrix method was employed to solve the assessment matrix and obtain the weights and membership functions of all evaluation indexes.A fuzzy decision-making method was applied to build the greenness evaluation model,and then the scores of green degree in microwave-assisted leaching process was obtained.The greenness evaluation model was applied to the life cycle assessment of the microwave-assisted leaching process.The results show that the microwave-assisted leaching process has advantages over the conventional ones,with respect to energy-consumption,processing time and environmental protection.

The Combination of BIM Technology with the Whole Life Cycle of Green Building

In the rapid development of modern cities, the construction of green low-car- bon livable cities and the realization of energy-saving and beautification of buildings are now being strongly promoted and havebecome an important indicator of urban development. With the implementation of green building and BIM technology, the combination of BIM technology with green building is a new momentum in the development of the construction industry. The application of BIM can make the quantitative management of green buildings in the whole life cycle, get rid of the shackles of traditional models, make the design and construction process more accurate, and also make the whole process of green buildings more standardized. Among them, the core of BIM is the information model, and the core of green building is: low energy consumption, green and sustainable. This paper firstly explains the concepts and advantages of BIM technology and green building, and separately elaborates the significance of using both in the construction field. Secondly, the current development status of BIM technology and green building is obtained by studying and analyzing the development status and connection between them. Finally, combining BIM technology in the whole life cycle of green building, analyzing the current situation and advantages and disadvantages of using the combination of green building and BIM in actual engineering, clarifying the importance of using BIM in the whole life cycle of green building, and highlighting the combination of BIM technology and the whole life cycle of green building as an important tool for the future development of the construction industry.

Reflection on Full Life Cycle Green Architectural Design of Passive Priority——Taking the Award Design of China Merchants Property 2013 Green Architectural Design Competition as an Example

In the China merchants property 2013 green architectural design competition,feature of this awardwinning program is the design method based on the principles of passive priority and comprehensive utilization of full life cycle. The passive priority can be achieved by building form derived from the simulation and analysis of wind environment,improvement of the building envelope insulation and the dehumidification of fresh air,the use of solar energy. The full life cycle utilization can be accomplished by the combination of exhibition and residents' leisure activities, and the integration with local cultural tradition, thereby improving energy efficiency and the utilization of the building.

Research on the Application of Green Design Concept in Interior Design

In recent years,with the rapid development of China’s economy and the accelerating process of urbanization,China’s construction industry has advanced by leaps and bounds,driving the building decoration industry into a golden period.As the key to urban construction and sustainable social development,the green concept has become a key requirement for the living environment of urban and rural residents,and the green concept and green life have become socially conscious.At present,green design has been widely used in the design and construction stage,but there are still many designers do not pay enough attention to it.Therefore,through the application of green design concept in interior design research,it is beneficial to realize the building indoor and outdoor ecological environmental protection as well as energy conservation and emission reduction,so as to fully meet the owner’s green ecological requirements for the indoor environment,and thus promote the healthy development of China’s building decoration industry.

A Cost-benefit Measuring Model of Green Products in Manufacturing Industry

The paper builds up a cost-benefit measuring model of green products in manufacturing industry throughout its full life cycle, which can quantify green products＇ cost and benefit completely and correctly under the circumstance of satisfying enterprise, customer, environment and society. It also puts forth an operable method to estimate social benefit by opportunity cost and establishes a profit maximization-programming model. The model can be applied to justify whether some kinds of green products should be developed and produced.

习近平关于绿色生活方式重要论述的生成逻辑、理论蕴涵及时代价值

党的十八大以来,习近平围绕绿色生活方式提出了系列新观点新论断,形成了科学系统的关于绿色生活方式的重要论述。这一论述的生成,源自马克思主义经典作家对资本主义生活方式的批判思考,传承于中华民族勤俭节约等优秀传统文化,发展于中国共产党人一以贯之的优良作风,植根于习近平领导的生态文明建设的伟大实践。这一论述深刻阐明了推动形成绿色生活方式的科学内涵、重大意义与实践要求,具有时代性、科学性、人民性、民族性和实践性等理论特征。这一论述不仅丰富发展了马克思主义基本原理和党的绿色生活理念,而且为新时代践行绿色生活方式提供了思想保证和行动指南,为全球生活方式绿色化转变贡献了中国智慧和中国方案。

数字化提升企业绿色创新质量的机制研究

选取中国A股上市公司的面板数据,运用多元回归分析模型,考察企业数字化对其绿色创新质量的影响,以及风险承担与市场竞争对二者之间关系的中介和调节机制。研究结果显示,企业数字化对其绿色创新质量具有提升作用,风险承担在企业数字化与绿色创新质量之间发挥部分中介作用,市场竞争对企业数字化与其绿色创新质量之间关系具有正向调节作用。进一步的分析结果显示:与民营企业相比,国有企业数字化对绿色创新质量的促进作用更大,且对中央企业的促进作用比地方国有企业大;与规模较小企业相比,规模较大企业数字化对绿色创新质量的促进作用更大;与处于衰退期的企业相比,处于成长期和成熟期的企业数字化对绿色创新质量的促进作用更大。研究结论能够为企业的数字化战略安排和政府的市场竞争环境培育提供有益的借鉴和启示。

中国发展方式绿色转型的统计测度及时空演进分析

加快发展方式绿色转型,是贯彻落实新发展理念的战略要求,是践行绿色发展理念的时代命题。评估中国发展方式绿色转型进程,对于实现“双碳”目标、推动经济社会高质量发展具有重要现实意义。本文采用熵权法,选取2011~2022年我国30个省(区、市)的面板数据,对各省(区、市)发展方式绿色转型水平进行测度并分析其时空演变特征和地区差异。研究发现:(1)中国发展方式绿色转型进程取得了阶段性成果,东部地区发展方式绿色转型程度最高;(2)东部地区与其他三大地理区域的发展方式绿色转型水平差异显著,其中东部地区与东北地区的差异最大;(3)发展方式绿色转型是一个渐进式过程,存在稳定的β收敛特征。研究结论对于缩小地区间发展方式绿色转型差异、加快发展方式绿色转型进程具有参考意义。

Government-led Green Supply Chain Management

Enterprises must be concerned about the environment when seeking economic benefit. However,because of the defect of the market economy,enterprises are difficult to carry out green supply chain management spontaneously. In order to solve the above problem,the feasibility of the government as an external driving force to lead the implementation of green supply chain management was studied,and then a mixed guidance model of enterprise green supply chain management was established. In addition,the mechanisms of the government encouraging enterprises to implement green supply chain management were discussed,including negative punitive measures( fines and taxes) and positive incentive measures( subsidies and tax reduction) and the supplementary function of environmental credit system policy to realize government-led green supply chain management,which provides certain guiding for achieving the sustainable development of enterprises and society.

公众环境关注是否促进减污降碳协同增效?——来自居民与企业的机制考察

在减污降碳亟须协同增效的背景下,探究公众环境关注的协同减污降碳成效与增效路径,有助于以多元共治的环境治理体系建设实现人与自然和谐共生的中国式现代化。基于2011—2021年中国277个地级以上城市数据,通过双向固定效应模型和两阶段最小二乘回归模型,评估公众环境关注的协同减污降碳治理成效,并验证了可能存在的作用机制。研究发现:公众环境关注显著促进了减污降碳协同治理增效,这一结论经过稳健性检验后依然成立;异质性分析发现,协同治理成效随城市规模扩大而持续削弱,资源城市的协同治理成效较非资源城市更为明显。机制分析发现,公众环境关注驱动了企业的绿色技术进步,以创新激励效应促进减污降碳协同增效;同时,公众环境关注培育了居民的绿色节能生活方式,以节能优化效应促进减污降碳协同增效。

论工程伦理与生态文明建设

中国式现代化是人与自然和谐共生的现代化。工程科技创新必须以相应的工程伦理规范及核心原则作为价值指引。所有国家工程职业领域伦理规范核心原则都包含对生态环境保护等方面的要求。人与自然和谐共生的中国式现代化,要求工程科技创新绿色发展,同时促进生态文明建设并助力中华民族共同体永续发展。人类命运共同体和人与自然生命共同体层面的广义工程共同体,应在跨文化、跨地域生态文明建设中达成和践行工程生态文明责任的工程伦理行动。

基于全生命周期绿色建筑成本影响因素研究

采用文献研究和问卷调查法,基于全生命周期视角,将绿色建筑成本的影响因素归为决策、设计、施工与建造、运营与维护、回收与利用等五类。构建结构方程模型分析影响因素的影响程度,并提出优化建议,以推动绿色建筑发展。

硫酸亚铁制备实验的课程思政设计

硫酸亚铁的制备是典型的无机制备实验。按绿色化学的要求对实验方法进行改进,将废弃Fe资源综合利用,合成可用于抗贫血药物的重要原料硫酸亚铁,并按照药典的标准进行分析检测。学生强化了称量、除杂、加热、溶解、蒸发、结晶以及固液分离等实验基本技能,认识了Fe等废弃资源综合利用的重要性,进一步明了Fe的性质与生命健康之间的关系,体会化学在改善环境、促进人类健康和社会发展中的重要作用,增强了专业自信心和自豪感,对学生能力培养和素质发展具有良好的促进作用。

基于实际地铁线路的全生命周期碳排放研究

在双碳战略的重大战略部署下,对轨道交通全生命周期碳排放进行研究,合理量化其碳排放水平是实现交通部门碳达峰、碳中和的重要措施。本文基于北京某新建地铁线路,对轨道交通全生命周期碳排放进行分析,建立了轨道交通全线、全生命周期的碳排放计算模型,并定量计算新建地铁线路全线、全生命周期的碳排放量。同时,对建设阶段和运营阶段的降碳措施做出分析,定量评估其降碳潜力。对全长81 km新建地铁线路进行碳排放量计算,得到建设阶段碳排放量为257万t CO_(2)eq,运营阶段为5.35万t CO_(2)eq/a,50年运营周期总计碳排放量524万t CO_(2)eq。建设阶段使用可再生材料及预制结构可减少碳排放量7%;运营阶段综合采用多种节能降碳措施后,可降碳27%;50年运营周期降碳潜力总计17%。该模型的建立对城轨交通全生命周期碳排放定量计算有指导意义,降碳措施的研究成果以期为城轨交通完成绿色低碳转型、实现交通部门碳达峰、碳中和提供参考。

基于绿色建筑全寿命周期的增量成本与收益模型研究

基于绿色建筑全寿命周期理论,以现有绿色建筑评价标准为基础,分析绿色建筑全寿命周期内增量成本与增量收益,构建经济性评价模型,并对某绿色建筑项目进行评估与分析,打破绿色建筑“高消费”的固有模式,推动绿色建筑市场化、普及化,促进绿色建筑发展,加速低碳经济转型。

黏结钕铁硼磁体生产和回收生命周期评价

关于钕铁硼磁体回收的研究越来越受到重视,但在起步阶段回收制备技术是否能够真正带来环境效益是不确定的。采用ReCiPe评价方法,选取制备1 kg黏结钕铁硼磁体为功能单位,分别对黏结钕铁硼磁体直接制备和回收制备流程的环境影响进行评价并对比。结果表明:直接制备流程中对环境影响最大的关键阶段为熔炼阶段,环境影响主要由钕和电力产生;回收制备流程中对环境影响最大的关键阶段为去除有机物阶段和热压固化阶段,环境影响主要由次氯酸钠和电力产生。生产1 kg黏结钕铁硼磁体,直接制备工艺对人体健康损害、生态健康损害和资源耗竭的环境损害分别是回收制备工艺的158.40%、180.63%、63.37%。

基于建设项目全寿命周期下绿色建筑碳排放的探究

中国作为能源消耗和温室气体排放大国,其碳排放比例不断上升,其中2005年和2017年碳排放比分别为18%和27.2%,2022年更是上升到28.87%。建筑业是碳排放量最大的行业,要实现“碳达峰”“碳中和”,其碳减排任务十分紧迫,且面临严峻的挑战。因此,在建设项目全寿命周期下,开展绿色建筑对于碳减排具有重要意义,笔者针对建设项目中所涉及的建筑领域的工作环节展开了论述。

Treatment of Irritable Bowel Syndrome with a Combination of Curcumin, Green Tea and Selenomethionine Has a Positive Effect on Satisfaction with Bowel Habits

Background: Irritable bowel syndrome (IBS) is a common disorder impairing patient’s quality of life. Currently, there is no effective treatment for this syndrome. Coltect is a dietary supplement containing curcumin, green tea and selenomethionine. Aim: To investigate the effects of Coltect on IBS symptoms. Methods: A randomized, prospective, placebo-controlled, double blinded, crossover study. The study population included patients diagnosed with IBS by Rome criteria. Subjects were randomized to receive either Coltect or placebo for 4 weeks, and then received the opposite treatment for 4 weeks following a washout period of 2 weeks. The placebo was a pill, identical in color and size to the Coltect pill, with no active ingredients. Patients completed IBS health-related quality of life, severity score and IBS symptom questionnaires before and after each treatment period. Results: The study included 22 patients, ages 22 – 77 years. Coltect had a positive effect on patients’ satisfaction with their bowel habits (as measured on a scale from 0—Very satisfied to 100—Very unsatisfied). Average score was 70.4 ± 33.1 before and 61.8 ± 29.3 after Coltect treatment (p = 0.037). Other parameters, including abdominal pain, bloating, and effects of IBS on daily activity, symptoms, IBS-related quality of life and general health quality of life were unchanged. Conclusion: Coltect seems to have a positive effect on satisfaction with bowel habits.