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学者姓名:张健
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This study aims to unravel the seasonal differences in outdoor thermal comfort (OTC) in a cold winter-hot summer region, as well as the comprehensive impact of meteorological and human factors, along with people's activity patterns in public spaces, on OTC. Questionnaire surveys, microclimate measurements, and photo recording were conducted over 21 daytime sessions in seven public spaces across winter and summer. The results indicated a significant seasonal OTC variance in Beijing. The neutral PET and neutral PET range were 21.9 degrees C and 15.2-28.6 degrees C for summer, and 14.3 degrees C and 6.1-22.5 degrees C for winter. Globe temperature primarily impacted OTC during both seasons, while wind speed was the only additional influential factor in winter. In Beijing, summer cooling is more crucial than winter insulation; however, winter wind protection is prioritized over summer ventilation. Some human factors, including age, activity level, visiting purpose, short-term thermal experience, and environmental stimuli, also influence OTC to some extent. Furthermore, this study identified significant variations in the temporal distribution and age demographics of attendees in various types of public spaces across different seasons, which considerably influence OTC. Our findings provide insights into the relationship between outdoor thermal comfort and public space use, which informs climate adaptive urban design.
Keyword :
Urban public space Urban public space Outdoor thermal comfort Outdoor thermal comfort Physiological equivalent temperature (PET) Physiological equivalent temperature (PET) Microclimate Microclimate Urban design Urban design Questionnaire survey Questionnaire survey
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GB/T 7714 | Ma, Tong , Zhang, Jian . Integrating thermal perception and public space use - an experimental outdoor comfort study in cold winter-hot summer zone: Beijing, China [J]. | URBAN CLIMATE , 2024 , 58 . |
MLA | Ma, Tong 等. "Integrating thermal perception and public space use - an experimental outdoor comfort study in cold winter-hot summer zone: Beijing, China" . | URBAN CLIMATE 58 (2024) . |
APA | Ma, Tong , Zhang, Jian . Integrating thermal perception and public space use - an experimental outdoor comfort study in cold winter-hot summer zone: Beijing, China . | URBAN CLIMATE , 2024 , 58 . |
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Community green spaces (CGSs) constitute a crucial element of urban land use, playing a pivotal role in maintaining the stability of urban ecosystems and enhancing the overall quality of the urban environment. Through the post-occupancy evaluation (POE) of green spaces, we can gain insights into residents' actual needs and usage habits, providing scientific evidence for the planning, design, and management of green spaces. This ensures that CGSs better meet residents' needs and improve their quality of life. The POE of CGSs relies heavily on high-precision data support. However, the current POE system for CGSs faces challenges, such as limited data collection methods, incomplete indicator systems, and excessive manual involvement. To address these limitations in data collection, this study proposes a comprehensive, dynamically monitored, objective, and sustainable POE system for CGSs. This system incorporates a multi-dimensional perception system that integrates the Internet of Things (IoT) and sensors to collect data from various sources. It establishes an evaluation framework from the perspectives of policy guidance and usage needs for CGSs, utilizing neural network systems and artificial intelligence techniques to compute the evaluation results. Using the Jiayuan Sanli Community in Beijing as a case study, this paper demonstrates the feasibility of the proposed system. A comparison between the POE results obtained using the multi-dimensional perception technique and those obtained manually reveals an 87% improvement in the accuracy of the evaluation results based on the multi-dimensional perception system. This system bridges the gap between planning perspectives and user experiences, contributing significantly to future urban land planning and land policy formulation.
Keyword :
data processing data processing multi-dimensional perception system multi-dimensional perception system post-use evaluation post-use evaluation community green spaces community green spaces
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GB/T 7714 | Li, Meng , Zhang, Jian , Wang, Yuchen . Research on Post-Use Evaluation of Community Green Space Rectification Based on a Multi-Dimensional Perception System: A Case Study of Jiayuan Sanli Community in Beijing [J]. | LAND , 2024 , 13 (5) . |
MLA | Li, Meng 等. "Research on Post-Use Evaluation of Community Green Space Rectification Based on a Multi-Dimensional Perception System: A Case Study of Jiayuan Sanli Community in Beijing" . | LAND 13 . 5 (2024) . |
APA | Li, Meng , Zhang, Jian , Wang, Yuchen . Research on Post-Use Evaluation of Community Green Space Rectification Based on a Multi-Dimensional Perception System: A Case Study of Jiayuan Sanli Community in Beijing . | LAND , 2024 , 13 (5) . |
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Land-use patterns affected carbon emissions, which were influenced by urban land-use management in the long term. However, few studies linked carbon emissions with composite urban land-use management directly, leading to difficulties in reducing carbon emissions by urban land-use planning. Here, we proposed an integrated framework for carbon emissions accounting by land-use types and prediction through urban land-use manage-ment including the adjustment of urban growth mode and land-use structure. And the FLUS model and linear programming model were linked in the scenario analysis to predict carbon emissions. Finally, a decoupling model was used to evaluate the effects of urban land-use management on carbon emissions decoupling. A case study was conducted for Hangzhou from 1995 to 2015, showing the differences in carbon emissions in various scenarios for 2035. The results showed: (1) From 2010 to 2015, the carbon emissions of Hangzhou increased by 4.47 times, and it was dominated by the growth of carbon emissions for industrial land. (2) The potential of land-use structure optimization on carbon emissions reductions was from 23.80% to 28.04%, and that of compact urban growth was from 13.72% to 18.5%. (3) Decoupling relationships did not exist between carbon emissions and economic growth, and carbon emissions and urban land growth for all scenarios under urban land-use management in 2035. Our findings proposed an approach to consider practical ways to reduce carbon emis-sions through land-use management.
Keyword :
Linear programming mode Linear programming mode Urban growth mode Urban growth mode Urban land-use management Urban land-use management Carbon emissions Carbon emissions FLUS model FLUS model Land-use structure Land-use structure
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GB/T 7714 | Xia, Chuyu , Zhang, Jian , Zhao, Jing et al. Exploring potential of urban land-use management on carbon emissions-- A case of Hangzhou, China [J]. | ECOLOGICAL INDICATORS , 2023 , 146 . |
MLA | Xia, Chuyu et al. "Exploring potential of urban land-use management on carbon emissions-- A case of Hangzhou, China" . | ECOLOGICAL INDICATORS 146 (2023) . |
APA | Xia, Chuyu , Zhang, Jian , Zhao, Jing , Xue, Fei , Li, Qiang , Fang, Kai et al. Exploring potential of urban land-use management on carbon emissions-- A case of Hangzhou, China . | ECOLOGICAL INDICATORS , 2023 , 146 . |
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Commuting carbon emissions are an essential component of urban carbon emissions, and determining how to reduce them is an area of great debate among researchers. The current research lacks a tool and instrument that can extensively account for residents' commuting. Traditional methods are mainly based on questionnaire surveys, which have low accuracy at spatial and temporal aspects. High accuracy carbon emission accounting methods can effectively assist urban planning and achieve precise urban emissions reductions. This study applies a taxi commuting carbon emissions accounting method divided into two main steps. Firstly, the carbon emissions of taxi trajectories are calculated using taxi trajectory data and a carbon emission calculation method developed based on VSP. Secondly, the taxi trajectory and POI data are used to filter the commuter trajectory with the help of a two-step moving search method. In this way, the taxi commuting carbon emissions were obtained. Then, the spatial distribution characteristics of residential taxi commuting carbon emissions are analysed by spatial autocorrelation tools, which could facilitate low carbon zoning management. A typical working day in Hangzhou was selected as the research object of this study. The results show that (1) morning peak commuting carbon emissions in the main urban area of Hangzhou reached 2065.14 kg per hour, accounting for 13.73% of all taxi travel carbon emissions; and evening peak commuting carbon emissions reached 732.2 kg per hour, accounting for 4% of all taxi travel carbon emissions; (2) At the grid level, the spatial distribution of commuting carbon emissions in Hangzhou shows a single central peak that decays in all directions; and (3) The results at the resident community scale show that urban public transport facilities influence resident community commuting carbon emissions. In areas such as at the urban-rural border, resident community commuting carbon emissions show high levels of aggregation, and in the main urban area, resident community commuting carbon emissions show low levels of aggregation. This study not only provides a new method of commuting investigation but also offers constructive suggestions for future carbon emission reduction under Hangzhou's urban planning.
Keyword :
Hangzhou Hangzhou taxi GPS data taxi GPS data commuting carbon emissions commuting carbon emissions spatial-temporal emissions distribution spatial-temporal emissions distribution VSP model VSP model
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GB/T 7714 | Li, Song , Xue, Fei , Xia, Chuyu et al. A Big Data-Based Commuting Carbon Emissions Accounting Method-A Case of Hangzhou [J]. | LAND , 2022 , 11 (6) . |
MLA | Li, Song et al. "A Big Data-Based Commuting Carbon Emissions Accounting Method-A Case of Hangzhou" . | LAND 11 . 6 (2022) . |
APA | Li, Song , Xue, Fei , Xia, Chuyu , Zhang, Jian , Bian, Ao , Lang, Yuexi et al. A Big Data-Based Commuting Carbon Emissions Accounting Method-A Case of Hangzhou . | LAND , 2022 , 11 (6) . |
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Abstract :
户型设计是装配式高层钢结构住宅设计的重要组成部分,既要能够体现装配式高层钢结构的结构体系特色,同时又要满足居住者多样化的功能需求.基于类型学理论对传统的住宅户型设计进行分类、提炼、重组,提出适合装配式高层钢结构住宅的户型模块化设计方法.
Keyword :
装配式高层钢结构住宅 装配式高层钢结构住宅 模块化设计 模块化设计 户型 户型 类型学 类型学
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GB/T 7714 | 张健 , 李梦 , 刘学春 . 基于类型的装配式高层钢结构住宅户型模块化设计 [J]. | 工业建筑 , 2017 , 47 (5) : 62-67 . |
MLA | 张健 et al. "基于类型的装配式高层钢结构住宅户型模块化设计" . | 工业建筑 47 . 5 (2017) : 62-67 . |
APA | 张健 , 李梦 , 刘学春 . 基于类型的装配式高层钢结构住宅户型模块化设计 . | 工业建筑 , 2017 , 47 (5) , 62-67 . |
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Three new water-stable In(III)-based metalorganic frameworks, namely, [In-3(TTTA)(2)(OH)(3)(H2O)]center dot(DMA)3 (BUT-70, DMA = N,N-dimethylacetamide), [In-3(TTTA)(2)(CH3O)(3)] (BUT-70A), and [In-3(TTTA)(2)(OH)(3)] (BUT-70B), with rod-shaped secondary building units (SBUs) and an new acrylate-based ligand, (2E,2'E,2 '' E)-3,3',3 ''-(2,4,6-trimethylbenzene-1,3,5-triyl)-triacrylate (TTTA(3)) were obtained and structurally characterized. BUT-70A and -70B were generated in a single-crystal to single-crystal transformation fashion from BUT-70 through guest exchange followed by their removal. The solvents used for guest exchange were methanol and dichloromethane, respectively. Single-crystal structure analyses show that the guest exchange and removal process is accompanied by the substitution of coordinated water molecules of In(III) centers with uncoordinated carboxylate O atoms of TTTA(3) ligands. Moreover, hydroxyl groups bridging two In(III) centers are also replaced by methoxyl groups in the transformation from BUT-70 to -70A. Overall, three metalorganic frameworks (MOFs) are constructed by infinite chains consisting of corner-sharing InO4(OR)(2) (R = H or Me) octahedral entities, which are interconnected by TTTA(3) ligands to form three-dimensional frameworks. Unlike most reported MOFs with infinite chains as SBUs, such as well-known MIL-53 and M-MOF-74, which have one-dimensional channels along the chain direction, the BUT-70 series contain two-dimensional intersecting channels. The BrunauerEmmettTeller surface area and pore volume of BUT-70A were estimated to be 460 m(2) g(1) and 0.18 cm(3) g(1), respectively, which are obviously lower than those of BUT-70B (695 m(2) g(1) and 0.29 cm(3) g(1)). Gas adsorption experiments demonstrated that BUT-70A and -70B are able to selectively adsorb C2H2 over CO2 and CH4. At 1 atm and 298 K, BUT-70A uptakes 3.1 mmol g(1) C2H2, which is 3.6 times that of the CO2 uptake and 7.2 times that of the CH4 uptake. Compared with BUT-70A, BUT-70B presents an even higher C2H2 uptake of 3.9 mmol g1 at the same conditions, but slightly lower Ideal Adsorbed Solution Theory C2H2/CO2 and C2H2/CH4 selectivities.
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GB/T 7714 | Guo, Zhen-Ji , Yu, Jiamei , Zhang, Yong-Zheng et al. Water-Stable In(III)-Based Metal-Organic Frameworks with Rod-Shaped Secondary Building Units: Single-Crystal to Single-Crystal Transformation and Selective Sorption of C2H2 over CO2 and CH4 [J]. | INORGANIC CHEMISTRY , 2017 , 56 (4) : 2188-2197 . |
MLA | Guo, Zhen-Ji et al. "Water-Stable In(III)-Based Metal-Organic Frameworks with Rod-Shaped Secondary Building Units: Single-Crystal to Single-Crystal Transformation and Selective Sorption of C2H2 over CO2 and CH4" . | INORGANIC CHEMISTRY 56 . 4 (2017) : 2188-2197 . |
APA | Guo, Zhen-Ji , Yu, Jiamei , Zhang, Yong-Zheng , Zhang, Jian , Chen, Ya , Wu, Yufeng et al. Water-Stable In(III)-Based Metal-Organic Frameworks with Rod-Shaped Secondary Building Units: Single-Crystal to Single-Crystal Transformation and Selective Sorption of C2H2 over CO2 and CH4 . | INORGANIC CHEMISTRY , 2017 , 56 (4) , 2188-2197 . |
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Abstract :
一种稳定的In金属‑有机骨架、制备方法及其应用,属于晶态材料的技术领域。化学分子式为[In3(TTTA)2(OH)3H2O],TTTA为有机配体(2E, 2'E, 2”E)‑3, 3', 3”‑(2, 4, 6‑三甲基)‑均苯三丙烯酸。封闭条件下,有机配体(2E, 2'E, 2”E)‑3, 3', 3”‑(2, 4, 6‑三甲基)‑均苯三丙烯酸与氯化铟在N, N‑二甲基乙酰胺、去离子水和四氟硼酸的混合溶液中,经由热反应得到金属‑有机骨架的晶体;此金属‑有机骨架具有较大的孔尺寸以及比表面积,可用作CO2的吸附材料。
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GB/T 7714 | 俞嘉梅 , 郭振济 , 吴玉锋 et al. 一种稳定的In金属‑有机骨架材料、制备方法及其应用 : CN201610038908.0[P]. | 2016-01-20 . |
MLA | 俞嘉梅 et al. "一种稳定的In金属‑有机骨架材料、制备方法及其应用" : CN201610038908.0. | 2016-01-20 . |
APA | 俞嘉梅 , 郭振济 , 吴玉锋 , 张健 . 一种稳定的In金属‑有机骨架材料、制备方法及其应用 : CN201610038908.0. | 2016-01-20 . |
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Through ligand modification, we have replaced the central benzene ring of H2TDBA ([1,1': 3', 1.-terphenyl]-4,4.-dicarboxylicacid) with the pyridine structurally related ligand H2PDDA (4,4'-(pyridine-2,6-diyl) dibenzoic acid), which makes the central pyridine ring of H2PDDA more coplanar with two benzene rings on both sides of the ligand. The modification results in a dramatically different linkage configuration, thereby allowing structural changes to the metal-organic frameworks (MOFs). Two 2-D MOFs, [Cu(TDBA)(DMA)2].H2O (BUT-221, DMA = N,N-dimethylacetamide), and [Cu 3 (PDDA) 3 (DMA) 2 (H2O)].5H2O (BUT-223) have been synthesized through reactions of two ditopic carboxylate ligands with Cu(NO3)2.3H2O under solvothermal conditions, and characterized by single-crystal X-ray diffraction, powder X-ray diffraction, thermogravimetric analysis and infrared spectroscopy. Topological analysis shows that BUT-221 is a twofold parallel interpenetrating 44 2-D network with a skl topology, while BUT-223 is a 2-D network with a kgm topology.
Keyword :
crystal structure crystal structure topology topology Metal-organic frameworks Metal-organic frameworks ligand modification ligand modification
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GB/T 7714 | Zhang, Jian , Wang, Bin , Li, Ming et al. Different two-dimensional metal-organic frameworks through ligand modification [J]. | JOURNAL OF COORDINATION CHEMISTRY , 2016 , 69 (14) : 2193-2199 . |
MLA | Zhang, Jian et al. "Different two-dimensional metal-organic frameworks through ligand modification" . | JOURNAL OF COORDINATION CHEMISTRY 69 . 14 (2016) : 2193-2199 . |
APA | Zhang, Jian , Wang, Bin , Li, Ming , Zhao, Min-Jian , Xie, Ya-Bo , Li, Jian-Rong . Different two-dimensional metal-organic frameworks through ligand modification . | JOURNAL OF COORDINATION CHEMISTRY , 2016 , 69 (14) , 2193-2199 . |
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Antibiotics and organic explosives are among the main organic pollutants in wastewater; their detection and removal are quite important but challenging. As a new class of-porous materials, Metal organic frameworks (MOPs) are considered as a promising platform for the sensing and adsorption applications. In this work, guided by a topological design approach, two stable isostructural Zr(IV)-based MOFs, Zr6O4(OH)(8)(H2O)(4)(CTTA)(8/3) (BUT-12, H(3)CTTA = 5'-(4-carboxyphenyl)-2',4',6'-trimethyl-[1,1':3',1 ''-terphenyl]-4,4 ''-dicarboxylic acid) and Zr6O4(OH)(8)(H2O)(4)(TTNA)(8/3) (BUT-13, H(3)TTNA = 6,6',6 ''-(2,4,6-trimethylbenzene-1,3,5-triyl)tris(2-naphthoic acid)) with the the-a topological structure constructed by D-4h 8-connected Zr-6 clusters and D-3h 3-connected linkers were designed and synthesized. The two MOFs are highly porous with the Brunauer-Emmett-Teller surface area of 3387 and 3948 m(2) g(-1), respectively. Particularly, BUT-13 features one-of the most porous water-stable MOFs reported so far. Interestingly, these MOFs, represent excellent fluorescent properties, which can be efficiently quenched by trace amounts of nitrofurazone (NZF) and nitrofurantoin (NFT) antibiotics as well as 2,4,6: trinitrophenol (TNP) and 4-nitrophenol (4-NP) organic explosives in water solution. They are responsive to NZF and TNP at parts per billion (ppb) levels, which are among the best performing luminescent MOP-based sensing materials. Simultaneously, both MOFs also display high adsorption abilities toward these organic molecules. It was demonstrated that the adsorption plays an important role in the preconcentration of analytes, which can further increase the fluorescent quenching efficiency. These results indicate that BUT-12 and -13 are favorable materials for the simultaneous selective detection and removal of specific antibiotics and organic explosives from water, being potentially useful in monitoring water quality and treating wastewater.
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GB/T 7714 | Wang, Bin , Lv, Xiu-Liang , Feng, Dawei et al. Highly Stable Zr(IV)-Based Metal-Organic Frameworks for the Detection and Removal of Antibiotics and Organic Explosives in Water [J]. | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY , 2016 , 138 (19) : 6204-6216 . |
MLA | Wang, Bin et al. "Highly Stable Zr(IV)-Based Metal-Organic Frameworks for the Detection and Removal of Antibiotics and Organic Explosives in Water" . | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 138 . 19 (2016) : 6204-6216 . |
APA | Wang, Bin , Lv, Xiu-Liang , Feng, Dawei , Xie, Lin-Hua , Zhang, Jian , Li, Ming et al. Highly Stable Zr(IV)-Based Metal-Organic Frameworks for the Detection and Removal of Antibiotics and Organic Explosives in Water . | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY , 2016 , 138 (19) , 6204-6216 . |
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Abstract :
抽气回热式有机朗肯循环发动机余热回收系统及控制方法,该系统主要由发动机系统、开式抽气回热有机朗肯循环系统、闭式抽气回热有机朗肯循环系统、冷却系统和控制系统组成。本系统通过调节不同阀门的开闭,实现在开式抽气回热有机朗肯循环系统与闭式抽气回热有机朗肯循环系统之间的转换,从而更好地利用发动机的排气余热能量。相较于现有的技术方案,本发明具有结构紧凑、易于控制、余热能利用率较高等优点,具有较为广泛的应用前景。
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GB/T 7714 | 宋松松 , 张红光 , 杨富斌 et al. 抽气回热式有机朗肯循环发动机余热回收系统及控制方法 : CN201510036787.1[P]. | 2015-01-25 . |
MLA | 宋松松 et al. "抽气回热式有机朗肯循环发动机余热回收系统及控制方法" : CN201510036787.1. | 2015-01-25 . |
APA | 宋松松 , 张红光 , 杨富斌 , 杨凯 , 张健 . 抽气回热式有机朗肯循环发动机余热回收系统及控制方法 : CN201510036787.1. | 2015-01-25 . |
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