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  1. Article ; Online: Uncovering hydrothermal treatment of per- and polyfluoroalkyl substances.

    Fan, Qifeng / Gong, Tiantian / Dong, Qianling / Wang, Wenbing

    Eco-Environment & Health (Online)

    2023  Volume 2, Issue 1, Page(s) 21–23

    Abstract: Image 1. ...

    Abstract Image 1.
    Language English
    Publishing date 2023-02-16
    Publishing country Netherlands
    Document type Journal Article
    ISSN 2772-9850
    ISSN (online) 2772-9850
    DOI 10.1016/j.eehl.2023.02.002
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  2. Article: Comparison of the transportation network for public transit and private vehicles in Shanghai: An accessibility approach.

    Fan, Naifu / Chen, Xiaohong / Tian, Tiantian / Zhao, Siyu

    Heliyon

    2024  Volume 10, Issue 2, Page(s) e24886

    Abstract: This study examines the differences in service level and coverage of public transit (PT) and private vehicles (PV) with multi-source data in Shanghai. To construct computable networks and address visual results, the constrained shortest path algorithm ... ...

    Abstract This study examines the differences in service level and coverage of public transit (PT) and private vehicles (PV) with multi-source data in Shanghai. To construct computable networks and address visual results, the constrained shortest path algorithm and a spatial grid accessibility model are employed to seek the optimal path for travelers to city key points. Travel time ratio of PV and PT is applied to reflect the competitiveness of the two modes over different areas of Shanghai. Results show that for PV, although the average travel time meets the needs of car travel, 51 % of the population cannot get to graded city centers within 45 min. In addition, the PV accessibility gradually weakens from the central city to the outside, highways and expressways may be feasible solutions. For PT, half of the population can't reach any city key points within two transfers, and almost all of these people live in the suburbs. Less than 30 % of the population can reach the city key points within 1 h, of which rail transit contributes more than conventional buses. Furthermore, the travel accessibility of PV is much better than that of PT. The average travel time ratio in all comparable grids is 2.04 for hubs, and 2.10 for graded city centers. For travels to graded city centers, the travel time ratio of suburbs is 35 % higher than that of central city, indicating that the inequity distribution of public transportation resources is worse in the suburbs than in the central city. This study also measures equity performance of groups based on spatial location and income level, and we find out that more core locations and higher income lead to higher accessibility. The gap among groups is significant, with a Gini coefficient over 0.5.
    Language English
    Publishing date 2024-01-17
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2024.e24886
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  3. Article ; Online: Superb green cycling strategies for microbe-Fe

    Wang, Wenbing / Fan, Qifeng / Gong, Tiantian / Zhang, Meng / Li, Chunyang / Zhang, Yunhui / Li, Hui

    Journal of hazardous materials

    2024  Volume 470, Page(s) 134143

    Abstract: To address time-consuming and efficiency-limited challenges in conventional zero-valent iron (ZVI, ... ...

    Abstract To address time-consuming and efficiency-limited challenges in conventional zero-valent iron (ZVI, Fe
    MeSH term(s) Fluorocarbons/metabolism ; Fluorocarbons/chemistry ; Caprylates/metabolism ; Caprylates/chemistry ; Iron/metabolism ; Iron/chemistry ; Biodegradation, Environmental ; Water Pollutants, Chemical/metabolism ; Water Pollutants, Chemical/chemistry ; Biotransformation ; Neural Networks, Computer ; Bacteria/metabolism ; Bacteria/genetics ; Pseudomonas/metabolism ; Pseudomonas/genetics
    Chemical Substances perfluorooctanoic acid (947VD76D3L) ; Fluorocarbons ; Caprylates ; Iron (E1UOL152H7) ; Water Pollutants, Chemical
    Language English
    Publishing date 2024-03-27
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1491302-1
    ISSN 1873-3336 ; 0304-3894
    ISSN (online) 1873-3336
    ISSN 0304-3894
    DOI 10.1016/j.jhazmat.2024.134143
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  4. Article ; Online: Author Correction: Fast and scalable production of crosslinked polyimide aerogel fibers for ultrathin thermoregulating clothes.

    Xue, Tiantian / Zhu, Chenyu / Yu, Dingyi / Zhang, Xu / Lai, Feili / Zhang, Longsheng / Zhang, Chao / Fan, Wei / Liu, Tianxi

    Nature communications

    2024  Volume 15, Issue 1, Page(s) 1145

    Language English
    Publishing date 2024-02-07
    Publishing country England
    Document type Published Erratum
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-024-45600-9
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  5. Article ; Online: Practical Online Characterization of the Properties of Hydrocracking Bottom Oil via Near-Infrared Spectroscopy

    Jian Long / Tiantian Xu / Chen Fan

    Processes, Vol 11, Iss 829, p

    2023  Volume 829

    Abstract: Providing real-time information on the chemical properties of hydrocracking bottom oil (HBO) as the feedstock for ethylene cracker while minimizing processing time, is important to improve the real-time optimization of ethylene production. In this study, ...

    Abstract Providing real-time information on the chemical properties of hydrocracking bottom oil (HBO) as the feedstock for ethylene cracker while minimizing processing time, is important to improve the real-time optimization of ethylene production. In this study, a novel approach for estimating the properties of HBO samples was developed on the basis of near-infrared (NIR) spectra. The main noise and extreme samples in the spectral data were removed by combining discrete wavelet transform with principal component analysis and Hotelling’s T2 test. Kernel partial least squares (KPLS) regression was utilized to account for the nonlinearities between NIR data and the chemical properties of HBO. Compared with the principal component regression, partial least squares regression, and artificial neural network, the KPLS model had a better performance of obtaining acceptable values of root mean square error of prediction (RMSEP) and mean absolute relative error (MARE). All RMSEP and MARE values of density, Bureau of Mines correlation index, paraffins, isoparaffins, and naphthenes were less than 1.0 and 3.0, respectively. The accuracy of the industrial NIR online measurement system during consecutive running periods in predicting the chemical properties of HBO was satisfactory. The yield of high value-added products increased by 0.26 percentage points and coil outlet temperature decreased by 0.25 °C, which promoted economic benefits of the ethylene cracking process and boosted industrial reform from automation to digitization and intelligence.
    Keywords hydrocracking bottom oil ; near-infrared ; kernel partial least squares ; online measurement ; ethylene cracking ; Chemical technology ; TP1-1185 ; Chemistry ; QD1-999
    Subject code 660
    Language English
    Publishing date 2023-03-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article: The radiomics-clinical nomogram for predicting the response to initial superselective arterial embolization in renal angiomyolipoma, a preliminary study.

    Zechuan, Liu / Tianshi, Lyu / Tiantian, Li / Shoujin, Cao / Hang, Yao / Ziping, Yao / Haitao, Guan / Zeyang, Fan / Yinghua, Zou / Jian, Wang

    Frontiers in oncology

    2024  Volume 14, Page(s) 1334706

    Abstract: Purpose: The aim of this study was to explore a radiomics-clinical model for predicting the response to initial superselective arterial embolization (SAE) in renal angiomyolipoma (RAML).: Materials and methods: A total of 78 patients with RAML were ... ...

    Abstract Purpose: The aim of this study was to explore a radiomics-clinical model for predicting the response to initial superselective arterial embolization (SAE) in renal angiomyolipoma (RAML).
    Materials and methods: A total of 78 patients with RAML were retrospectively enrolled. Clinical data were recorded and evaluated. Radiomic features were extracted from preoperative contrast-enhanced CT (CECT). Least absolute shrinkage and selection operator (LASSO) and intra- and inter-class correlation coefficients (ICCs) were used in feature selection. Logistic regression analysis was performed to develop the radiomics, clinical, and combined models where the fivefold cross-validation method was used. The predictive performance and calibration were evaluated by the receiver operating characteristic (ROC) curve and calibration curve. Decision curve analysis (DCA) was used to measure clinical usefulness.
    Results: The tumor shrinkage rate was 29.7% in total, and both fat and angiomyogenic components were significantly reduced. In the radiomics model, 12 significant features were selected. In the clinical model, maximum diameter (
    Conclusions: The radiomics-clinical model incorporating radiomics features and clinical parameters can potentially predict the positive response to initial SAE in RAML and provide support for clinical treatment decisions.
    Language English
    Publishing date 2024-03-05
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2649216-7
    ISSN 2234-943X
    ISSN 2234-943X
    DOI 10.3389/fonc.2024.1334706
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  7. Article: Association with pre-pregnancy BMI on early pregnancy loss in infertility patients in first HRT-FET cycles: A retrospective cohort study.

    Cheng, Tiantian / Fan, Jingjing / Yuan, Fang / Xie, Huanhuan / Zhang, Cuilian / He, Qiaohua

    Obesity research & clinical practice

    2024  

    Abstract: Objective: To investigate the association between pre-pregnancy body mass index (BMI) and the early pregnancy loss rate in patients in first hormone replacement therapy-frozen-thawed embryo transfer (HRT-FET) cycles and find the threshold.: Methods: ... ...

    Abstract Objective: To investigate the association between pre-pregnancy body mass index (BMI) and the early pregnancy loss rate in patients in first hormone replacement therapy-frozen-thawed embryo transfer (HRT-FET) cycles and find the threshold.
    Methods: A retrospective cohort study was conducted using a total of 14030 HRT-FET cycles at the Reproductive Center from January 2017 to December 2021. The association of pre-pregnancy BMI on early pregnancy loss rate in patients in HRT-FET cycles was assessed by performing univariate analysis, multivariable logistic regression, curve fitting and threshold effect analysis.
    Results: There were 2076 cycles of early pregnancy loss, and the pregnancy loss rate was 14.80%. After adjusting for confounding factors, the early pregnancy loss rate of the obese group was significantly higher than that of the normal weight group (P < 0.05). The threshold effect analysis showed that as the pre-pregnancy BMI ranged from 21.2 to 25.8 kg/m
    Conclusion: The early pregnancy loss rate might achieve a low level when the pre-pregnancy BMI was within the range of 21.2- 25.8 kg/m
    Language English
    Publishing date 2024-03-06
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2274031-4
    ISSN 1878-0318 ; 1871-403X
    ISSN (online) 1878-0318
    ISSN 1871-403X
    DOI 10.1016/j.orcp.2024.03.001
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  8. Article ; Online: Mechanically Strong and Thermally Insulating Polyimide Aerogel Fibers Reinforced by Prefabricated Long Polyimide Fibers.

    Zhu, Chenyu / Xue, Tiantian / Ma, Zhuocheng / Fan, Wei / Liu, Tianxi

    ACS applied materials & interfaces

    2023  Volume 15, Issue 9, Page(s) 12443–12452

    Abstract: Aerogel fibers inherit the merits of aerogel and fibrous materials, such as high porosity and satisfactory knittability, demonstrating great potential as thermal protective materials applied in harsh environments. Nevertheless, the inferior mechanical ... ...

    Abstract Aerogel fibers inherit the merits of aerogel and fibrous materials, such as high porosity and satisfactory knittability, demonstrating great potential as thermal protective materials applied in harsh environments. Nevertheless, the inferior mechanical property resulting from the porous structure immensely hampers the practical application of aerogel fibers. Herein, we develop robust and thermally insulating long polyimide fiber-reinforced polyimide composite aerogel fibers (LPF-PAFs). The porous crosslinked polyimide aerogel as the sheath endows LPF-PAFs with good thermal insulation performance, while the long polyimide fibers as the core provide LPF-PAFs with superior mechanical strength. Due to the introduction of the high-strength long polyimide fibers to undertake significant stress, LPF-PAFs display outstanding strength surpassing 150 MPa without obvious mechanical performance degeneration in a wide range of temperatures from -100 to 300 °C. Moreover, the textile woven by LPF-PAFs exhibits a superior thermal insulation ability and stability to cotton textile at 200 and -100 °C, indicating its potential application in thermal protective clothing under extreme environments.
    Language English
    Publishing date 2023-02-22
    Publishing country United States
    Document type Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.3c00408
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  9. Article ; Online: Enzymatic browning and polyphenol oxidase control strategies.

    Sui, Xu / Meng, Zan / Dong, Tiantian / Fan, Xuetong / Wang, Qingguo

    Current opinion in biotechnology

    2023  Volume 81, Page(s) 102921

    Abstract: Significant amounts of fresh and fresh-cut fruits and vegetables are wasted every year due to enzymatic browning. Polyphenol oxidase (PPO) is the key enzyme involved in the enzymatic browning. In the past decades, various methods have been developed to ... ...

    Abstract Significant amounts of fresh and fresh-cut fruits and vegetables are wasted every year due to enzymatic browning. Polyphenol oxidase (PPO) is the key enzyme involved in the enzymatic browning. In the past decades, various methods have been developed to inhibit browning of various fresh produce items. However, for most fresh horticultural produce, ideal measures accepted by industries and consumers are still scarce. This review provides up-to-date knowledge of browning control technologies, including physical methods, chemical methods such as natural inhibitors, molecular biotechnology, and nanotechnology. In addition, we propose some ideas to improve the efficacies of these strategies with fewer side effects. To better inhibit tissue browning, new research directions are also discussed, for example, regulation of PPO substrate techniques.
    MeSH term(s) Catechol Oxidase/analysis ; Catechol Oxidase/chemistry ; Fruit/chemistry ; Biotechnology
    Chemical Substances Catechol Oxidase (EC 1.10.3.1)
    Language English
    Publishing date 2023-03-23
    Publishing country England
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ZDB-ID 1052045-4
    ISSN 1879-0429 ; 0958-1669
    ISSN (online) 1879-0429
    ISSN 0958-1669
    DOI 10.1016/j.copbio.2023.102921
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  10. Article ; Online: Chasing weakly-bound biological water in aqueous environment near the peptide backbone by ultrafast 2D infrared spectroscopy.

    Zhao, Juan / Yu, Pengyun / Dong, Tiantian / Wu, Yanzhou / Yang, Fan / Wang, Jianping

    Communications chemistry

    2024  Volume 7, Issue 1, Page(s) 82

    Abstract: There has been a long-standing debate as to how many hydrogen bonds a peptide backbone amide can form in aqueous solution. Hydrogen-bonding structural dynamics of N-ethylpropionamide (a β-peptide model) in water was examined using infrared (IR) ... ...

    Abstract There has been a long-standing debate as to how many hydrogen bonds a peptide backbone amide can form in aqueous solution. Hydrogen-bonding structural dynamics of N-ethylpropionamide (a β-peptide model) in water was examined using infrared (IR) spectroscopy. Two amide-I sub bands arise mainly from amide C=O group that forms strong H-bonds with solvent water molecules (SHB state), and minorly from that involving one weak H-bond with water (WHB state). This picture is supported by molecular dynamics simulations and ab-initio calculations. Further, thermodynamics and kinetics of the SHB and WHB species were examined mainly by chemical-exchange two-dimensional IR spectroscopy, yielding an activation energy for the SHB-to-WHB exchange of 13.25 ± 0.52 kJ mol
    Language English
    Publishing date 2024-04-11
    Publishing country England
    Document type Journal Article
    ZDB-ID 2929562-2
    ISSN 2399-3669 ; 2399-3669
    ISSN (online) 2399-3669
    ISSN 2399-3669
    DOI 10.1038/s42004-024-01170-x
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