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  1. Article: Mycorrhizas Affect Physiological Performance, Antioxidant System, Photosynthesis, Endogenous Hormones, and Water Content in Cotton under Salt Stress.

    Zhang, De-Jian / Tong, Cui-Ling / Wang, Qiong-Shan / Bie, Shu

    Plants (Basel, Switzerland)

    2024  Volume 13, Issue 6

    Abstract: Saline-alkali stress seriously endangers the normal growth of cotton ( ...

    Abstract Saline-alkali stress seriously endangers the normal growth of cotton (
    Language English
    Publishing date 2024-03-12
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2704341-1
    ISSN 2223-7747
    ISSN 2223-7747
    DOI 10.3390/plants13060805
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Estimation of surface free energy at microstructured surface to investigate intermediate wetting state for partial wetting model.

    Yu, Yankun / Zhang, Dejian / Nagayama, Gyoko

    Soft matter

    2023  Volume 19, Issue 6, Page(s) 1249–1257

    Abstract: While partial wetting at nano-/microstructured surfaces can be described using the intermediate wetting state between the Cassie-Baxter and Wenzel states, the limitations of the partial wetting model remain unclear. In this study, we performed surface ... ...

    Abstract While partial wetting at nano-/microstructured surfaces can be described using the intermediate wetting state between the Cassie-Baxter and Wenzel states, the limitations of the partial wetting model remain unclear. In this study, we performed surface free energy analysis at a microstructured Si-water interface from both theoretical and experimental viewpoints. We experimentally measured the water contact angle on microstructured Si surfaces with square holes and compared the measured values with theoretical predictions. Furthermore, the surface free energy was analyzed using the effective wetting area estimated from the measured contact angle and electrochemical impedance spectroscopy results. We verified the validity of the partial wetting model for fabricated Si surfaces with a hole aperture
    Language English
    Publishing date 2023-02-08
    Publishing country England
    Document type Journal Article
    ZDB-ID 2191476-X
    ISSN 1744-6848 ; 1744-683X
    ISSN (online) 1744-6848
    ISSN 1744-683X
    DOI 10.1039/d2sm01406h
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: A scalable distributed parallel simulation tool for the SWAT model

    Lin, Qiaoying / Zhang, Dejian

    Environmental modelling & software. 2021 Oct., v. 144

    2021  

    Abstract: High-fidelity hydrological models are increasingly built and used to investigate the effects of management activities and climate change on water availability and quality for large areas with datasets of high spatial and temporal resolution. However, ... ...

    Abstract High-fidelity hydrological models are increasingly built and used to investigate the effects of management activities and climate change on water availability and quality for large areas with datasets of high spatial and temporal resolution. However, these advantages come at the price of greater computational demand and run time. This becomes challenging when modeling routines involve iterative model simulations. In this study, we proposed a generic scheme to reduce the Soil and Water Assessment Tool (SWAT) runtime by decomposing a watershed model into subbasin models and optimizing the subbasin model simulations based on a parallel approach. Based on this scheme, we implemented a generic tool named Spark-SWAT, which allows subbasin models to be simulated in parallel on a Spark computer cluster. We then evaluated Spark-SWAT with two sets of experiments to demonstrate the potential of Spark-SWAT to accelerate single and iterative model simulations. In each test set, Spark-SWAT was applied to simulate 12 synthetic hydrological models in parallel with different I/O (input/output) burdens and river network complexities in a Spark cluster with five virtual machines. The single model parallelization results showed that Spark-SWAT yielded a speedup value of 7.84 for the most complex model but was less effective with simple models. When applied to use cases with iterative model runs, Spark-SWAT yielded a speedup of 6.55–24.58 depending on the model complexity. These results indicate that the proposed scheme can effectively solve high-computational-demand problems of complex models. As a subbasin-level parallelization tool, Spark-SWAT can be very computationally frugal and useful in use cases in which the model input changes pertain to only a few subbasins because only the changed and downstream subbasins require new computations. Moreover, it is possible to apply this generic method to other subbasin-based hydrological models to alleviate I/O demands and optimize model computational performance.
    Keywords Soil and Water Assessment Tool model ; climate change ; computer software ; computers ; data collection ; prices ; rivers
    Language English
    Dates of publication 2021-10
    Publishing place Elsevier Ltd
    Document type Article
    ISSN 1364-8152
    DOI 10.1016/j.envsoft.2021.105133
    Database NAL-Catalogue (AGRICOLA)

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  4. Article: Effects of Enzymatic Modification and Cross-Linking with Sodium Phytate on the Structure and Physicochemical Properties of

    Wang, Jun / Zhang, Dejian / Xiao, Jiechuan / Wu, Xiaotong

    Foods (Basel, Switzerland)

    2022  Volume 11, Issue 17

    Abstract: In this study, ...

    Abstract In this study,
    Language English
    Publishing date 2022-08-25
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2704223-6
    ISSN 2304-8158
    ISSN 2304-8158
    DOI 10.3390/foods11172583
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  5. Article: Effects of Enzymatic Modification and Cross-Linking with Sodium Phytate on the Structure and Physicochemical Properties of Cyperus esculentus Starch

    Wang, Jun / Zhang, Dejian / Xiao, Jiechuan / Wu, Xiaotong

    Foods. 2022 Aug. 25, v. 11, no. 17

    2022  

    Abstract: In this study, C. esculentus porous starch (PS) and C. esculentus cross-linked porous starch (CPS) were prepared by enzymatic modification and sodium phytate cross-linking, and their physicochemical and structural properties were determined. The results ... ...

    Abstract In this study, C. esculentus porous starch (PS) and C. esculentus cross-linked porous starch (CPS) were prepared by enzymatic modification and sodium phytate cross-linking, and their physicochemical and structural properties were determined. The results showed that the adsorption and emulsification capacities of PS were 1.3606 g/g and 22.6 mL/g, respectively, which were significantly higher than 0.5419 g/g and 4.2 mL/g of C. esculentus starch (NS). The retrogradation curves of starch paste showed that the stability of PS was inferior to that of NS. In addition, the results of texture analysis showed that the gel strength of PS was also significantly reduced relative to NS. The PS exhibited a rough surface with pores and low molecular order and crystallinity according to scanning electron microscope (SEM), fourier infrared spectroscopy (FTIR), and X ray diffractometer (XRD) analyses. As compared to PS, CPS still presented a high adsorption capacity of 1.2744 g/g and the steadiness of starch paste was significantly better. XPS demonstrated the occurrence of the cross-linking reaction. Our results show that enzyme modification and dual modification by combining enzymatic treatment with sodium phytate cross-linking can impart different structures and functions to starch, creating reference material for the application of modified starch from C. esculentus.
    Keywords Cyperus esculentus ; adsorption ; crosslinking ; crystal structure ; emulsifying ; enzymatic treatment ; enzymes ; gel strength ; infrared spectroscopy ; modified starch ; phytic acid ; retrogradation ; texture
    Language English
    Dates of publication 2022-0825
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2704223-6
    ISSN 2304-8158
    ISSN 2304-8158
    DOI 10.3390/foods11172583
    Database NAL-Catalogue (AGRICOLA)

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  6. Article ; Online: Intermediate wetting state at nano/microstructured surfaces.

    Nagayama, Gyoko / Zhang, Dejian

    Soft matter

    2020  Volume 16, Issue 14, Page(s) 3514–3521

    Abstract: A general partial wetting model to describe an intermediate wetting state is proposed in this study to explain the deviations between the experimental results and classical theoretical wetting models for hydrophobic surfaces. We derived a theoretical ... ...

    Abstract A general partial wetting model to describe an intermediate wetting state is proposed in this study to explain the deviations between the experimental results and classical theoretical wetting models for hydrophobic surfaces. We derived a theoretical partial wetting model for the static intermediate wetting state based on the thermodynamic energy minimization method. The contact angle based on the partial wetting model is a function of structural parameters and effective wetting ratio f, which agrees with the classical Wenzel and Cassie-Baxter models at f = 1 and 0, respectively. Si samples including porous surfaces, patterned surfaces and hierarchical nano/microstructured surfaces were prepared experimentally, having the same chemical composition but different physical morphology. We found that the experimental water contact angles deviate significantly from the classical Wenzel and Cassie-Baxter models but show good agreement with the proposed partial wetting model.
    Language English
    Publishing date 2020-03-26
    Publishing country England
    Document type Journal Article
    ZDB-ID 2191476-X
    ISSN 1744-6848 ; 1744-683X
    ISSN (online) 1744-6848
    ISSN 1744-683X
    DOI 10.1039/c9sm02513h
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Book: Plant growth regulators (PGRS)

    Wu, Qiang-Sheng / Zhang, De-Jian

    types, uses and safety

    (Plant science research and practices)

    2020  

    Abstract: Plant growth regulators consist of organic molecules produced synthetically and used to modulate plant growth. There are several classes of plant growth regulators, including auxin, gibberellin, abscisic acid, cytokinins, salicylic, jasmonic acid and ... ...

    Author's details Qiang-Sheng Wu and De-Jian Zhang, editors
    Series title Plant science research and practices
    Abstract "Plant growth regulators consist of organic molecules produced synthetically and used to modulate plant growth. There are several classes of plant growth regulators, including auxin, gibberellin, abscisic acid, cytokinins, salicylic, jasmonic acid and ethylene, as well as more recently investigated brassinosteroids, strigolactones, polyamine, etc. These plant growth regulators have either promoting or inhibitory effects on plant growth and development by means of modification in plant secondary metabolism and gene regulation. Some of plant growth regulators may have safe issues in fields. More attention should be paid in the application of plant growth regulators. Researchers also try to find other regulators to do more field experiments, in order to reduce the amount of organic chemicals (e.g., traditional plant growth regulators) used. This book discusses the function, types, uses and safety of plant growth regulators. The effects of plant growth regulators on horticultural plants are specially introduced in this book. Fly ash and soil mycorrhizal fungi-released glomalin also get a lot of attention in this book"--
    MeSH term(s) Plant Growth Regulators
    Keywords Plant regulators. ; Growth (Plants) ; Nutzpflanzen ; Pflanzenhormon ; Wachstumsregulator
    Language English
    Size xi, 150 pages :, illustrations ;, 23 cm.
    Publisher Nova Science Publishers
    Publishing place New York
    Document type Book
    ISBN 9781536172560 ; 1536172561 ; 9781536172577 ; 1536172561 ; 9781536172560 ; 153617257X
    Database NAL-Catalogue (AGRICOLA)

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  8. Article ; Online: Dynamics of DOC concentration and flux in different propagation stages of hydrological drought: Patterns and drivers

    Wu, Jiefeng / Yao, Huaxia / Wang, Guoqing / Chen, Xiaohong / Yuan, Xing / Zhou, Yuliang / Zhang, Dejian

    Journal of Hydrology. 2023 Feb., v. 617 p.128939-

    2023  

    Abstract: Droughts influence dissolved organic carbon (DOC) export. DOC concentration and flux dynamics during different propagation stages of hydrological drought (HD) are complex and poorly understood. Long-term (from 1978 to 2018) weekly (biweekly) DOC ... ...

    Abstract Droughts influence dissolved organic carbon (DOC) export. DOC concentration and flux dynamics during different propagation stages of hydrological drought (HD) are complex and poorly understood. Long-term (from 1978 to 2018) weekly (biweekly) DOC concentration and daily streamflow at four headwater streams of Harp Lake catchment, Ontario, Canada were used to examine the effects of HD on the dynamics. Identified HD were divided into four propagation stages: pre-drought (P1), intensification (P2), recovery (P3) and post-drought (P4). The potential mechanisms underlying the patterns in DOC were also investigated. First, HD reduced DOC concentration by an average of 19.24% relative to non-HD periods. DOC concentrations and fluxes of streams were different during different propagation stages. Second, DOC flux patterns among streams were consistent with “fast decline-slow rise-fast rise” trends over the P2, P3, and P4, relative to each previous stage. However, DOC concentration pattern differed among four streams, showing a “fast decline-slow decline-fast rise” trend across four stages in two streams, but a “fast decline-slow rise-fast rise” pattern at other two. Initially, DOC flux during HD was primarily dominated by streamflow, but DOC concentration eventually became an important co-factor. Third, the rapid decrease (or increases) in streamflow during P2 (P4) relative to P1 (P3) led to a fast decline (or rise) in DOC concentration. Differences in DOC concentration responses among streams were probably due to differences in local hydrologic features (e.g., wetlands) and unnatural activities. pH and SO₄ can also influence DOC concentration dynamics during HD, but just under the specific hydrothermal combinations. This study provides an updated perspective to understand the dynamic patterns of DOC concentration and flux and their drivers during droughts, and it could be used to improve the modeling and management capability of water quality.
    Keywords decline ; drought ; lakes ; organic carbon ; pH ; stream flow ; water ; water quality ; watersheds ; Ontario ; Hydrological drought ; Propagation stage ; Dissolved organic carbon ; Dynamic patterns ; Headwater streams
    Language English
    Dates of publication 2023-02
    Publishing place Elsevier B.V.
    Document type Article ; Online
    ZDB-ID 1473173-3
    ISSN 1879-2707 ; 0022-1694
    ISSN (online) 1879-2707
    ISSN 0022-1694
    DOI 10.1016/j.jhydrol.2022.128939
    Database NAL-Catalogue (AGRICOLA)

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  9. Article ; Online: Measurement of effective wetting area at hydrophobic solid-liquid interface.

    Zhang, Dejian / Takase, Satoko / Nagayama, Gyoko

    Journal of colloid and interface science

    2021  Volume 591, Page(s) 474–482

    Abstract: Hypotheses: The effective wetting area, a parameter somewhat different from the apparent contact area at solid-liquid interfaces, plays a significant role in surface wettability. However, determination of the effective wetting area for hydrophobic ... ...

    Abstract Hypotheses: The effective wetting area, a parameter somewhat different from the apparent contact area at solid-liquid interfaces, plays a significant role in surface wettability. However, determination of the effective wetting area for hydrophobic surfaces remains an open question. In the present study, we developed an electrochemical impedance method to evaluate the effective wetting area at a hydrophobic solid-liquid interface.
    Experiments: Patterned Si surfaces were prepared using the anisotropic wet etching method, and the water contact angle and electrochemical impedance were measured experimentally. The effective wetting area at the solid-liquid interface was examined based on the wettability and impedance results.
    Findings: The electrochemical impedance for the patterned Si surfaces increased with increasing surface hydrophobicity, whereas the effective wetting area decreased. The intermediate wetting state (i.e. partial wetting model) was confirmed at the patterned Si surfaces, and the effective wetting area was theoretically estimated. The effective wetting area predicted from the electrochemical impedance agreed well with that predicted from the partial wetting model, thereby demonstrating the validity of the electrochemical impedance method for evaluating the effective wetting area at the hydrophobic solid-liquid interface.
    Language English
    Publishing date 2021-01-26
    Publishing country United States
    Document type Journal Article
    ZDB-ID 241597-5
    ISSN 1095-7103 ; 0021-9797
    ISSN (online) 1095-7103
    ISSN 0021-9797
    DOI 10.1016/j.jcis.2021.01.056
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Effective Wetting Area Based on Electrochemical Impedance Analysis: Hydrophilic Structured Surface.

    Zhang, Dejian / Nagayama, Gyoko

    Langmuir : the ACS journal of surfaces and colloids

    2019  Volume 35, Issue 50, Page(s) 16508–16513

    Abstract: Wettability on nano/microstructured surfaces is gaining remarkable interest for a wide range of applications; however, little is known about the effective wetting area of the solid-liquid interface. In this study, the effect of wettability on ... ...

    Abstract Wettability on nano/microstructured surfaces is gaining remarkable interest for a wide range of applications; however, little is known about the effective wetting area of the solid-liquid interface. In this study, the effect of wettability on electrochemical impedance was experimentally investigated to obtain a better understanding of the effective wetting area. We demonstrate that the water contact angle decreases significantly at hydrophilic surfaces with denser nano/microstructures. Based on the analysis of equivalent electrical circuits, we found that the electrochemical impedance decreases with reducing the water contact angle, showing a dependence on the effective wetting area, i.e., the real solid-liquid contact area. Also, the charge transfer resistance at low frequency was found to be the dominant parameter to estimate the effective wetting area at the solid-liquid interface.
    Language English
    Publishing date 2019-12-06
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2005937-1
    ISSN 1520-5827 ; 0743-7463
    ISSN (online) 1520-5827
    ISSN 0743-7463
    DOI 10.1021/acs.langmuir.9b03349
    Database MEDical Literature Analysis and Retrieval System OnLINE

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