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Digital twin for healthy indoor environment: A vision for the post-pandemic era

《工程管理前沿（英文）》 2023年第10卷第2期页码 300-318 doi: 10.1007/s42524-022-0244-y

摘要： Indoor environment has significant impacts on human health as people spend 90% of their time indoors. The COVID-19 pandemic and the increased public health awareness have further elevated the urgency for cultivating and maintaining a healthy indoor environment. The advancement in emerging digital twin technologies including building information modeling (BIM), Internet of Things (IoT), data analytics, and smart control have led to new opportunities for building design and operation. Despite the numerous studies on developing methods for creating digital twins and enabling new functionalities and services in smart building management, very few have focused on the health of indoor environment. There is a critical need for understanding and envisaging how digital twin paradigms can be geared towards healthy indoor environment. Therefore, this study reviews the techniques for developing digital twins and discusses how the techniques can be customized to contribute to public health. Specifically, the current applications of BIM, IoT sensing, data analytics, and smart building control technologies for building digital twins are reviewed, and the knowledge gaps and limitations are discussed to guide future research for improving environmental and occupant health. Moreover, this paper elaborates a vision for future research on integrated digital twins for a healthy indoor environment with special considerations of the above four emerging techniques and issues. This review contributes to the body of knowledge by advocating for the consideration of health in digital twin modeling and smart building services and presenting the research roadmap for digital twin-enabled healthy indoor environment.

关键词： digital twin healthy indoor environment building information modeling occupant–building interaction COVID-19

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Effect of natural resource on improving indoor thermal environment in Chongqing

Yong DING, Baizhan LI, Qing LUO, Hong LIU, Meng LIU

《结构与土木工程前沿（英文）》 2009年第3卷第2期页码 211-218 doi: 10.1007/s11709-009-0018-1

摘要： This paper analyzes the potential of natural resources to improve the indoor thermal environment in Chongqing through the statistical analysis of natural resources including solar energy, wind, water, and earth, etc. The building form, systems, and principle of usage of natural resources are briefly analyzed through the building site decision, building form design, and computer simulation, which will be the real reference for the design of building energy efficiency.

关键词： natural resource indoor thermal environment renewable energy

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Comparative analysis of impact of human occupancy on indoor microbiomes

《环境科学与工程前沿（英文）》 2021年第15卷第5期 doi: 10.1007/s11783-020-1383-1

摘要：

• Exposure to indoor microbiomes is a public health concern in educational facilities.

关键词： Built environment Indoor microbiome Occupant Building Sequencing

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水环境恢复与城市水系统健康循环研究

张杰,李冬

《中国工程科学》 2012年第14卷第3期页码 21-26

摘要：

研究了地球上水文循环及社会水循环的规律和互动关系，指出水环境、水资源和水循环是地球上水汽运动的统一体，剖析了当代水危机的根源,提出水环境恢复和社会用水健康循环理论及实施方略，并在多座城市水系统规划应用中取得了良好效果。

关键词：城市水环境水系统健康循环

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Understanding building-occupant-microbiome interactions toward healthy built environments: A review

Shuai Li, Zhiyao Yang, Da Hu, Liu Cao, Qiang He

《环境科学与工程前沿（英文）》 2021年第15卷第4期 doi: 10.1007/s11783-020-1357-3

摘要： Abstract • The built environment, occupants, and microbiomes constitute an integrated ecosystem. • This review summarizes research progress which has focused primarily on microbiomes. • Critical research needs include studying impacts of occupant behaviors on microbiomes. Built environments, occupants, and microbiomes constitute a system of ecosystems with extensive interactions that impact one another. Understanding the interactions between these systems is essential to develop strategies for effective management of the built environment and its inhabitants to enhance public health and well-being. Numerous studies have been conducted to characterize the microbiomes of the built environment. This review summarizes current progress in understanding the interactions between attributes of built environments and occupant behaviors that shape the structure and dynamics of indoor microbial communities. In addition, this review also discusses the challenges and future research needs in the field of microbiomes of the built environment that necessitate research beyond the basic characterization of microbiomes in order to gain an understanding of the causal mechanisms between the built environment, occupants, and microbiomes, which will provide a knowledge base for the development of transformative intervention strategies toward healthy built environments. The pressing need to control the transmission of SARS-CoV-2 in indoor environments highlights the urgency and significance of understanding the complex interactions between the built environment, occupants, and microbiomes, which is the focus of this review.

关键词： Microbiome Built Environment Occupant Health

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Highlights of the special issue on “Healthy Soil for Healthy Food”

Junling ZHANG, Fusuo ZHANG

《农业科学与工程前沿（英文）》 2020年第7卷第3期页码 233-235 doi: 10.15302/J-FASE-2020345

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Healthy people, healthy journal

Sai-Juan CHEN, Xiao-Ping CHEN, Guang-Biao ZHOU,

《医学前沿（英文）》 2010年第4卷第1期页码 1-2 doi: 10.1007/s11684-010-0022-9

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Optimized porous clay heterostructure for removal of acetaldehyde and toluene from indoor air

Pu ZHAO,Lizhong ZHU

《环境科学与工程前沿（英文）》 2016年第10卷第2期页码 219-228 doi: 10.1007/s11783-014-0760-z

摘要： Adsorption is the most widely used technology for the removal of indoor volatile organic compounds (VOCs). However, existing adsorbent-based technologies are inadequate to meet the regulatory requirement, due to their limited adsorption capacity and efficiency, especially under high relative humidity (RH) conditions. In this study, a series of new porous clay heterostructure (PCH) adsorbents with various ratios of micropores to mesopores were synthesized, characterized and tested for the adsorption of acetaldehyde and toluene. Two of them, PCH25 and PCH50, exhibited markedly improved adsorption capability, especially for hydrophilic acetaldehyde. The improved adsorption was attributed to their large micropore areas and high micropore-to-mesopore volume ratios. The amount of acetaldehyde adsorbed onto PCH25 at equilibrium reached 62.7 mg·g , eight times as much as the amount adsorbed onto conventional activated carbon (AC). Even at a high RH of 80%, PCH25 removed seven and four times more of the acetaldehyde than AC and the unmodified raw PCHs did, respectively. This new PCH optimized for their high adsorption and resistance to humidity has promising applications as a cost-effective adsorbent for indoor air purification.

关键词： porous clay heterostructure volatile organic compounds adsorption adsorbent indoor air

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我国水环境恢复工程方略

张杰,丛广治

《中国工程科学》 2002年第4卷第8期页码 44-49

摘要：

在水环境日益恶化的今天，如何有效遏制恶化趋势，重新建立起水的健康循环，恢复良好水环境，是当前水资源可持续利用，人类永续发展的根本性问题。文章从水的自然循环和水的社会循环关系出发，论述了人类社会活动与自然界的协调发展，指出水环境恢复和维系的基础是建立健康的社会水循环。进而首次提出了系统的水环境恢复原理和方略。呼吁建立水循环科学与工程学科，为水环境恢复和维系事业提供科学依据和人才基础。从水环境角度进行各项水事工作，是恢复水环境的基本途径，也是客观实际的迫切要求。

关键词：水环境恢复水健康循环水环境科学与工程可持续利用

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Relations between indoor and outdoor PM

Cong Liu, Yinping Zhang

《环境科学与工程前沿（英文）》 2019年第13卷第1期 doi: 10.1007/s11783-019-1089-4

摘要：

Factors impacting indoor-outdoor relations are introduced.

Sulfate seems a fine tracer for other non-volatile species.

Particulate nitrate and ammonium desorb during outdoor-to-indoor transport.

OC load increases during the transport due to sorption of indoor SVOCs.

关键词： Indoor air quality Exposure SVOC Reactive oxidative species Oxidative potential Chemical transport model

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Indoor carbonyl compounds in an academic building in Beijing, China: concentrations and influencing factors

Chuanjia JIANG, Pengyi ZHANG

《环境科学与工程前沿（英文）》 2012年第6卷第2期页码 184-194 doi: 10.1007/s11783-011-0309-3

摘要： Carbonyl compounds in indoor air are of great concern for their adverse health effects. Between February and May, 2009, concentrations of 13 carbonyl compounds were measured in an academic building in Beijing, China. Total concentration of the detected carbonyls ranged from 20.7 to 189.1 μg·m , and among them acetone and formaldehyde were the most abundant, with mean concentrations of 26.4 and 22.6 μg·m , respectively. Average indoor concentrations of other carbonyls were below 10 μg·m . Principal component analysis identified a combined effect of common indoor carbonyl sources and ventilation on indoor carbonyl levels. Diurnal variations of the carbonyl compounds were investigated in one office room, and carbonyl concentrations tended to be lower in the daytime than at night, due to enhanced ventilation. Average concentrations of carbonyl compounds in the office room were generally higher in early May than in late February, indicating the influence of temperature. Carbonyl source emission rates from both the room and human occupants were estimated during two lectures, based on one-compartment mass balance model. The influence of human occupants on indoor carbonyl concentrations varies with environmental conditions, and may become significant in the case of a large human occupancy.

关键词： carbonyl compounds indoor air ventilation human occupancy source emission rate (SER) principal component analysis (PCA)

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Evaluation of computer vision techniques for automated hardhat detection in indoor construction safety

Bahaa Eddine MNEYMNEH, Mohamad ABBAS, Hiam KHOURY

《工程管理前沿（英文）》 2018年第5卷第2期页码 227-239 doi: 10.15302/J-FEM-2018071

摘要： Construction is considered among the most dangerous industries and is responsible for a large portion of total worker fatalities. A construction worker has a probability of 1-in-200 of dying on the job during a 45-year career, mainly due to fires, falls, and being struck by or caught between objects. Hence, employers must ensure their workers wear personal protective equipment (PPE), in particular hardhats, if they are at risk of falling, being struck by falling objects, hitting their heads on static objects, or coming in proximity to electrical hazards. However, monitoring the presence and proper use of hardhats becomes inefficient when safety officers must survey large areas and a considerable number of workers. Using images captured from indoor jobsites, this paper evaluates existing computer vision techniques, namely object detection and color-based segmentation tools, used to rapidly detect if workers are wearing hardhats. Experiments are conducted and the results highlight the potential of cascade classifiers, in particular, to accurately, precisely, and rapidly detect hardhats under different scenarios and for repetitive runs, and the potential of color-based segmentation to eliminate false detections.

关键词： construction safety personal protective equipment hardhat computer vision

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HARNESSING BIODIVERSITY FOR HEALTHY DAIRY FARMS

《农业科学与工程前沿（英文）》 2022年第9卷第2期页码 238-244 doi: 10.15302/J-FASE-2022445

摘要：

Producing sufficient high-quality forage to meet the increasing domestic demand for safe and nutritious milk products is one of the critical challenges that Chinese dairy farms are facing. The increased forage biomass production, mainly contributed by agrochemicals inputs in China, is accompanied by tremendous impacts on the ecology of dairy farms and soil quality. This paper presents a framework for healthy dairy farms in which targeted management practices are applied for quality milk products with minimal adverse environmental impacts. The paper also summarizes biodiversity management practices at the field and landscape scales toward lessening inputs of water, fertilizers, pesticides and mitigating soil compaction. Dairy farming with biodiversity-driven technologies and solutions will be more productive in producing quality milk and minimizing environmental damage.

关键词： biodiversity / dairy farm / one health concept / soil health

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Attitude toward preventive counseling and healthy practices among medical students at a Colombian university

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《医学前沿（英文）》 2015年第9卷第2期页码 251-259 doi: 10.1007/s11684-015-0393-z

摘要：

Unhealthy behaviors of medical students influence their attitudes toward preventive counseling. The burden of chronic diseases is continually growing in developing countries, emphasizing the need for the increased role of general practitioners in preventive counseling. The objective of this study was to describe the effect of medical training on the risk profiles and attitudes of medical students toward preventive counseling in a Colombian university. Students in their first and fifth years of training were surveyed using the “Healthy Doctor= Healthy Patient” questionnaire to assess counseling attitudes; personal practices, such as risky drinking, smoking, inadequate nutrition, and non-compliance with physical activity recommendations; and the university environment. The association among these components was estimated, as well as the effect of the university environment. Risky drinking and smoking decreased from first to fifth year (59.3% vs. 37.1%, P = 0.021 and 31.5% vs. 25.9%, P = 0.51, respectively), whereas inadequate nutrition and non-compliance with physical activity recommendations increased. Physical activity (PA) was associated with positive counseling attitude (ORs: nutrition 7.6; alcohol 5.2; PA 10.6). Areas governed by institutional policies that are emphasized in the curriculum positively affected student practices. PA promoted preventive counseling and healthy lifestyles most effectively. Universities should therefore strengthen their preventive medicine curricula and modify social determinants.

关键词： lifestyle medical students preventive medicine counseling universities schools medical

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Expression of protease-activated receptors on platelets in healthy individuals

Rui ZHU, Lin SHEN

《医学前沿（英文）》 2009年第3卷第2期页码 236-239 doi: 10.1007/s11684-009-0040-7

摘要： This study aimed to investigate the expression of protease-activated receptors (PARs) on platelets in healthy individuals and preliminarily elucidate physiological functions of PARs. Thirty healthy volunteers, who did not take any anticoagulants and antiplatelet agents within 10 days before the examination, were recruited. Fasting venous blood (5 mL) was taken from the medial cubital vein in each individual and platelet-rich plasma (PRP) was prepared. The expression of PAR1 mRNA and PAR4 mRNA in PRP was determined by RT-PCR analysis. The results showed that the average levels of PAR1 mRNA and PAR4 mRNA on platelets in healthy individuals were 0.1601 ± 0.0269 and 0.1073 ± 0.0194 respectively. In combination with literature analysis, it was concluded that the thrombin signaling pathway plays a vital role in the development of hemostasis and thrombosis, and the selective PARs antagonist has the potential for extensive application in clinical practice.

关键词： protease-activated receptors platelet

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标题作者时间类型操作

Digital twin for healthy indoor environment: A vision for the post-pandemic era

期刊论文

Effect of natural resource on improving indoor thermal environment in Chongqing

Yong DING, Baizhan LI, Qing LUO, Hong LIU, Meng LIU

期刊论文

Comparative analysis of impact of human occupancy on indoor microbiomes

期刊论文

水环境恢复与城市水系统健康循环研究

张杰,李冬