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期刊论文 47

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FRP筋 1

ISO标准火灾实验系统 1

下穿施工 1

主体行为 1

乘员防护 1

产业化 1

信任网络;稀疏学习;同质效应;交互行为 1

初值位移调控;忆阻系统;忆导;线平衡点集 1

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Energy modeling and data structure framework for Sustainable Human-Building Ecosystems (SHBE) — a review

Suraj TALELE, Caleb TRAYLOR, Laura ARPAN, Cali CURLEY, Chien-Fei CHEN, Julia DAY, Richard FEIOCK, Mirsad HADZIKADIC, William J. TOLONE, Stan INGMAN, Dale YEATTS, Omer T. KARAGUZEL, Khee Poh LAM, Carol MENASSA, Svetlana PEVNITSKAYA, Thomas SPIEGELHALTER, Wei YAN, Yimin ZHU, Yong X. TAO

《能源前沿(英文)》 2018年 第12卷 第2期   页码 314-332 doi: 10.1007/s11708-017-0530-2

摘要: This paper contributes an inclusive review of scientific studies in the field of sustainable human building ecosystems (SHBEs). Reducing energy consumption by making buildings more energy efficient has been touted as an easily attainable approach to promoting carbon-neutral energy societies. Yet, despite significant progress in research and technology development, for new buildings, as energy codes are getting more stringent, more and more technologies, e.g., LED lighting, VRF systems, smart plugs, occupancy-based controls, are used. Nevertheless, the adoption of energy efficient measures in buildings is still limited in the larger context of the developing countries and middle income/low-income population. The objective of Sustainable Human Building Ecosystem Research Coordination Network (SHBE-RCN) is to expand synergistic investigative podium in order to subdue barriers in engineering, architectural design, social and economic perspectives that hinder wider application, adoption and subsequent performance of sustainable building solutions by recognizing the essential role of human behaviors within building-scale ecosystems. Expected long-term outcomes of SHBE-RCN are collaborative ideas for transformative technologies, designs and methods of adoption for future design, construction and operation of sustainable buildings.

关键词: sustainability     building energy modeling (BEM)     occupant behaviors (OB)     sustainable ecosystems     System for the Observation of Populous Heterogeneous Information (SOPHI)    

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    

Flocculation behaviors of a novel papermaking sludge-based flocculant in practical printing and dyeing

《环境科学与工程前沿(英文)》 2021年 第15卷 第5期 doi: 10.1007/s11783-021-1390-x

摘要:

•PSBF performed better than PAC and PAM in CODCr removals.

关键词: Practical wastewater treatment     Commercial coagulant/flocculant     Secondary coagulation-flocculation process     Chemical oxygen demand     Coagulation-flocculation mechanism    

新型管式安全气囊设计与防护效果分析 Article

周华健, 钟志华, 胡满江

《工程(英文)》 2018年 第4卷 第2期   页码 291-297 doi: 10.1016/j.eng.2018.03.015

摘要:
安全气囊是有效的汽车乘员安全防护装置,但是乘员可能因为气囊点火展开时的巨大能量而受到意外伤害。本文从减少气体发生剂用量的角度对一种新型管式安全气囊进行设计;为研究新型气囊的刚度与防护效果,挑选3 种类型的假人进行计算机仿真;之后,针对第50 百分位假人进行多目标优化分析。结果显示,新型气囊的静态体积约为普通气囊的1/3,并且在气体发生剂用量至少减少30% 的情况下,每种假人的损伤值均能够满足法规要求。优化分析后,复合损伤指标(Pcomb)概率下降22%,且充气量最优解减少32%。本文结果表明,在减少气体发生剂用量的情况下,新型管式安全气囊在乘员防护方面仍具有较大的潜力。

关键词: 新型管式安全气囊     乘员防护     多目标优化    

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    

Thermal defluorination behaviors of PFOS, PFOA and PFBS during regeneration of activated carbon by molten

《环境科学与工程前沿(英文)》 2022年 第16卷 第8期 doi: 10.1007/s11783-022-1524-9

摘要:

• New method of mineralizing PFCs was proposed.

关键词: PFCs     Molten sodium hydroxide     Thermal degradation     Activated carbon regeneration    

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    

CFD simulation of jet behaviors in a binary gas-solid fluidized bed: comparisons with experiments

Pei PEI, Guiying WU, Bangting YU, Kai ZHANG, Jianchun JIANG, Dongsheng WEN,

《化学科学与工程前沿(英文)》 2010年 第4卷 第3期   页码 242-249 doi: 10.1007/s11705-009-0277-3

摘要: Based on the experimental observation of the fluidization characteristics of solid mixtures (resin and rapeseed) with different densities and sizes, the jet behaviours of the binary system are simulated in a two-dimensional jetting fluidized bed 0.30 m in width and 2.00 m in height. A simple mathematical model, by introducing two additional force terms in both gas and particle phase momentum equations of Gidaspow’s inviscid two-fluid model, is used to explore the effects of jet gas velocity and mixture combination on the jet penetration depth in the fluidized bed with a binary system. Experimental results show that there is a fluidization velocity interval (-) for the resin-on-rapeseed (flotsam-on-jetsam) segregated bed. The simulated jet penetration depth increases with the increase of jet gas velocity and the volume fraction of the flotsam (resin), which is in fair agreement with experimental data. The above findings show that the hydrodynamic model of Brandani and Zhang (2006), by introducing the average physical properties from Goossens et al.(1971), can be used to predict the jet behaviors of a well-mixing binary system.

关键词: mathematical     two-dimensional     flotsam-on-jetsam     fluidization velocity     physical    

高速润滑脂的弹流拖动特性

杨伯原,郑培斌,苏冰,吴勇军,邓四二

《中国工程科学》 2002年 第4卷 第4期   页码 75-78

摘要:

弹流拖动特性是润滑剂的重要性能,它对滚动轴承的 动态性能有着很大的影响。阐述了用自行设计的高速润滑脂弹流拖动力试验台在充分供脂条件下对国产7007和7018润滑脂进行的拖动力测试以及试验数据的处理,并提出了可供工程上使用的这两种润滑脂的弹流拖动系数计算公式。

关键词: 弹流润滑     拖动力试验     拖动特性    

Analysis of molten metal spreading and solidification behaviors utilizing moving particle full-implicit

《能源前沿(英文)》 2021年 第15卷 第4期   页码 959-973 doi: 10.1007/s11708-021-0753-0

摘要: To retrieve the fuel debris in Fukushima Daiichi Nuclear Power Plants (1F), it is essential to infer the fuel debris distribution. In particular, the molten metal spreading behavior is one of the vital phenomena in nuclear severe accidents because it determines the initial condition for further accident scenarios such as molten core concrete interaction (MCCI). In this study, the fundamental molten metal spreading experiments were performed with different outlet diameters and sample amounts to investigate the effect of the outlet for spreading-solidification behavior. In the numerical analysis, the moving particle full-implicit method (MPFI), which is one of the particle methods, was applied to simulate the spreading experiments. In the MPFI framework, the melting-solidification model including heat transfer, radiation heat loss, phase change, and solid fraction-dependent viscosity was developed and implemented. In addition, the difference in the spreading and solidification behavior due to the outlet diameters was reproduced in the calculation. The simulation results reveal the detailed solidification procedure during the molten metal spreading. It is found that the viscosity change and the solid fraction change during the spreading are key factors for the free surface condition and solidified materials. Overall, it is suggested that the MPFI method has the potential to simulate the actual nuclear melt-down phenomena in the future.

关键词: molten metal spreading     solidification     particle method     severe accident     fuel debris     decommissioning    

Cannabidiol prevents depressive-like behaviors through the modulation of neural stem cell differentiation

《医学前沿(英文)》 2022年 第16卷 第2期   页码 227-239 doi: 10.1007/s11684-021-0896-8

摘要: Chronic stress impairs radial neural stem cell (rNSC) differentiation and adult hippocampal neurogenesis (AHN), whereas promoting AHN can increase stress resilience against depression. Therefore, investigating the mechanism of neural differentiation and AHN is of great importance for developing antidepressant drugs. The nonpsychoactive phytocannabinoid cannabidiol (CBD) has been shown to be effective against depression. However, whether CBD can modulate rNSC differentiation and hippocampal neurogenesis is unknown. Here, by using the chronic restraint stress (CRS) mouse model, we showed that hippocampal rNSCs mostly differentiated into astrocytes under stress conditions. Moreover, transcriptome analysis revealed that the FoxO signaling pathway was involved in the regulation of this process. The administration of CBD rescued depressive-like symptoms in CRS mice and prevented rNSCs overactivation and differentiation into astrocyte, which was partly mediated by the modulation of the FoxO signaling pathway. These results revealed a previously unknown neural mechanism for neural differentiation and AHN in depression and provided mechanistic insights into the antidepressive effects of CBD.

关键词: cannabidiol     depression     radial neural stem cells     neurogenesis    

Controlling microbiological interfacial behaviors of hydrophobic organic compounds by surfactants in

ZHANG Dong,ZHU Lizhong

《环境科学与工程前沿(英文)》 2014年 第8卷 第3期   页码 305-315 doi: 10.1007/s11783-014-0647-z

摘要: Bioremediation of hydrophobic organic compounds (HOCs) contaminated soils involves several physicochemical and microbiological interfacial processes among the soil-water-microorganism interfaces. The participation of surfactants facilitates the mass transport of HOCs in both the physicochemical and microbiological interfaces by reducing the interfacial tension. The effects and underlying mechanisms of surfactants on the physicochemical desorption of soil-sorbed HOCs have been widely studied. This paper reviewed the progress made in understanding the effects of surfactant on microbiological interfacial transport of HOCs and the underlying mechanisms, which is vital for a better understanding and control of the mass transfer of HOCs in the biodegradation process. In summary, surfactants affect the microbiological interfacial behaviors of HOCs during three consecutive processes: the soil solution-microorganism sorption, the transmembrane process, and the intracellular metabolism. Surfactant could promote cell sorption of HOCs depending on the compatibility of surfactant hydrophile hydrophilic balance (HLB) with cell surface properties; while the dose ratio between surfactant and biologic mass (membrane lipids) determined the transmembrane processes. Although surfactants cannot easily directly affect the intracellular enzymatic metabolism of HOCs due to the steric hindrace, the presence of surfactants can indirectly enhanced the metabolism by increasing the substrate concentrations.

关键词: biodegradation     sorption     transmembrane transport     microbiological interfaces     surfactants    

Endosulfan residues and farmers’ replacement behaviors of endosulfan in the north-west inland cotton

《环境科学与工程前沿(英文)》 2023年 第18卷 第4期 doi: 10.1007/s11783-024-1803-8

摘要:

● The situation of endosulfan residues in cotton fields were assessed.

关键词: Cotton fields     Endosulfan residues     Farmers     KAP survey     Replacement behaviours    

Creep and recovery behaviors of magnetorheological elastomers

Weihua LI, Yang ZHOU, Tongfei TIAN, Gursel ALICI,

《机械工程前沿(英文)》 2010年 第5卷 第3期   页码 341-346 doi: 10.1007/s11465-010-0096-8

摘要: This paper presents experimental and modeling study of creep and recovery behaviors of magneto-rheological elastomers (MREs) under constant stresses. Experimental study was accomplished using a rheometer with parallel-plate geometry. Under constant stresses ranging from a small value to a large one, the resultant strains were recorded. The experimental results demonstrated that MREs behave as linear visocleastic properties. The effects of the magnetic field and stress on MRE creep behaviors were discussed. Moreover, a four-parameter viscoelastic model was developed to describe MRE creep behaviors. The comparison between the experimental results and the modeling predictions indicates that the model can predict MRE creep behaviors very well.

关键词: magneto-rheological elastomers (MREs)     creep     recovery     linear viscoelastic model    

Vibratory behaviors of Jeffcott system on cylindrical roller bearings

Hao WU, Jianwen WANG, Qi AN

《机械工程前沿(英文)》 2009年 第4卷 第3期   页码 305-309 doi: 10.1007/s11465-009-0036-7

摘要: A Jeffcott rotor system of cylindrical roller bearings is studied in detail. Its critical speed is calculated by a new calculation method with roller bearing stiffness and damping. The influences of bearing parameters, such as the roller length, rotor mass, distance between the bearings and the kinematics viscosity of oil on the system critical speed are numerically studied, and the influences of an oil film and damping on the critical speed are also studied. Regular curves of the relationship between the geometric parameters and the system critical speed are obtained. The results show that with increasing roller length and radial load, the critical speed increases; and with increasing rotor mass and the distance between the bearings and the kinematics viscosity, the critical speed decreases. This means that an oil film will decrease the critical rotational speed of the rotor system.

关键词: roller bearing     bearing-rotor system     design value     critical rotational speed    

标题 作者 时间 类型 操作

Energy modeling and data structure framework for Sustainable Human-Building Ecosystems (SHBE) — a review

Suraj TALELE, Caleb TRAYLOR, Laura ARPAN, Cali CURLEY, Chien-Fei CHEN, Julia DAY, Richard FEIOCK, Mirsad HADZIKADIC, William J. TOLONE, Stan INGMAN, Dale YEATTS, Omer T. KARAGUZEL, Khee Poh LAM, Carol MENASSA, Svetlana PEVNITSKAYA, Thomas SPIEGELHALTER, Wei YAN, Yimin ZHU, Yong X. TAO

期刊论文

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

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

期刊论文

Flocculation behaviors of a novel papermaking sludge-based flocculant in practical printing and dyeing

期刊论文

新型管式安全气囊设计与防护效果分析

周华健, 钟志华, 胡满江

期刊论文

Comparative analysis of impact of human occupancy on indoor microbiomes

期刊论文

Thermal defluorination behaviors of PFOS, PFOA and PFBS during regeneration of activated carbon by molten

期刊论文

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

期刊论文

CFD simulation of jet behaviors in a binary gas-solid fluidized bed: comparisons with experiments

Pei PEI, Guiying WU, Bangting YU, Kai ZHANG, Jianchun JIANG, Dongsheng WEN,

期刊论文

高速润滑脂的弹流拖动特性

杨伯原,郑培斌,苏冰,吴勇军,邓四二

期刊论文

Analysis of molten metal spreading and solidification behaviors utilizing moving particle full-implicit

期刊论文

Cannabidiol prevents depressive-like behaviors through the modulation of neural stem cell differentiation

期刊论文

Controlling microbiological interfacial behaviors of hydrophobic organic compounds by surfactants in

ZHANG Dong,ZHU Lizhong

期刊论文

Endosulfan residues and farmers’ replacement behaviors of endosulfan in the north-west inland cotton

期刊论文

Creep and recovery behaviors of magnetorheological elastomers

Weihua LI, Yang ZHOU, Tongfei TIAN, Gursel ALICI,

期刊论文

Vibratory behaviors of Jeffcott system on cylindrical roller bearings

Hao WU, Jianwen WANG, Qi AN

期刊论文