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  • 1
    Online Resource
    Online Resource
    Subnanometric Stacking of Two-Dimensional Nanomaterials: Insights from the Nanotexture Evolution of Dense Reduced Graphene Oxide Membranes
    American Chemical Society (ACS) ; 2023
    In:  ACS Nano Vol. 17, No. 5 ( 2023-03-14), p. 5072-5082
    Details
    In: ACS Nano, American Chemical Society (ACS), Vol. 17, No. 5 ( 2023-03-14), p. 5072-5082
    Type of Medium: Online Resource
    ISSN: 1936-0851 , 1936-086X
    URL: Article
    URL: Article
    DOI: 10.1021/acsnano.3c00155
    DOI: 10.1021/acsnano.3c00155.s001
    Language: English
    Publisher: American Chemical Society (ACS)
    Publication Date: 2023
    detail.hit.zdb_id: 2383064-5
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  • 2
    Online Resource
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    Comparisons among four different upscaling strategies for cultivar genetic parameters in rainfed spring wheat phenology simulations with the DSSAT-CERES-Wheat model
    Elsevier BV ; 2021
    In:  Agricultural Water Management Vol. 258 ( 2021-12), p. 107181-
    Details
    In: Agricultural Water Management, Elsevier BV, Vol. 258 ( 2021-12), p. 107181-
    Type of Medium: Online Resource
    ISSN: 0378-3774
    URL: Article
    DOI: 10.1016/j.agwat.2021.107181
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2021
    detail.hit.zdb_id: 2012450-8
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  • 3
    Online Resource
    Online Resource
    New Structural Insights into Densely Assembled Reduced Graphene Oxide Membranes
    Wiley ; 2022
    In:  Advanced Functional Materials Vol. 32, No. 42 ( 2022-10)
    Details
    In: Advanced Functional Materials, Wiley, Vol. 32, No. 42 ( 2022-10)
    Abstract: Densely assembled graphene‐based membranes have attracted substantial interest for their widespread applications, such as compact capacitive energy storage, ion/molecular separation, gas barrier films, and flexible electronics. However, the multiscale structure of densely packed graphene membranes remains ambiguously understood. This article combines X‐ray and light scattering techniques as well as dynamic electrosorption analysis to uncover the stacking structure of the densely stacked reduced graphene oxide (rGO) membranes. The membranes are produced by reducing graphene oxide (GO) membranes with hydrazine, during which the colloidal interactions between GO sheets are modulated by the electrolyte solution. In contrast to the common notion that direct reduction of densely assembled GO sheets in parallel tends to result in significant “graphitization”, this article unexpectedly discovers that the resultant densely packed rGO membrane can still retain the interconnected network nanochannels and show good capacitive performances. This inspires the development of a hierarchical structural model to describe the densely packed rGO membranes. This article further shows that the nanochannel network can be fine‐tuned at the sub‐nanometer level by tailoring the salt concentration and the reduction temperature to render exceptional volumetric capacitance and good rate performance for rGO membranes even with increased packing density.
    Type of Medium: Online Resource
    ISSN: 1616-301X , 1616-3028
    URL: Issue
    URL: Article
    DOI: 10.1002/adfm.v32.42
    DOI: 10.1002/adfm.202201535
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 2029061-5
    detail.hit.zdb_id: 2039420-2
    SSG: 11
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  • 4
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    Online Resource
    Efficient separation of aristolochic acid I from Caulis aristolochiae manshuriensis (Guan-mu-tong) with copper mediated magnetic molecularly imprinted polymer
    Royal Society of Chemistry (RSC) ; 2023
    In:  Analytical Methods Vol. 15, No. 35 ( 2023), p. 4555-4562
    Details
    In: Analytical Methods, Royal Society of Chemistry (RSC), Vol. 15, No. 35 ( 2023), p. 4555-4562
    Abstract: Screening bioactive compounds from natural products is one of the most effective ways for new drug research and development. However, obtaining a single extract component on a large scale and with high purity from a complex matrix is still an arduous and challenging task. Herein, one metal mediated magnetic molecularly imprinted polymer (mMIP) was rationally designed and prepared for specifically capturing Aristolochic acid I (AAI). The preparation was done with copper( ii ) as binding pivot, (3-aminopropyl) triethoxysilane as functional monomer, and Fe 3 O 4 as core, by a one-step sol–gel method. Under the optimized conditions, the apparent maximum binding amount of copper mediated mMIP (Cu-mMIP) reaches as high as 349.72 mg g −1 , the highest among the reported AAI-MIPs. Moreover, the nanoparticles exhibit excellent specificity and selectivity, good reproducibility and stability, high superparamagnetism (60.32 emu g −1 ), and high imprinting efficiency (an imprinting factor of 7). By simulating an industrial-scale separation, 16.56 mg AAI (purity of 95.11%) is obtained after six cycles with 100 mg nanoparticles from 20 g Caulis aristolochiae manshuriensis (Guan-mu-tong). Notably, this takes only 3 hours and consumes 50 mL of methanol. The study provides a potent tool for the green, fast, and specific extraction of high-purity ingredients from natural plants in the manufacturing industry and conventional analysis in the lab.
    Type of Medium: Online Resource
    ISSN: 1759-9660 , 1759-9679
    URL: Article
    DOI: 10.1039/D3AY00920C
    Language: English
    Publisher: Royal Society of Chemistry (RSC)
    Publication Date: 2023
    detail.hit.zdb_id: 2515210-5
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  • 5
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    Identification and Spatiotemporal Migration Analysis of Groundwater Drought Events in the North China Plain
    MDPI AG ; 2023
    In:  Atmosphere Vol. 14, No. 6 ( 2023-05-31), p. 961-
    Details
    In: Atmosphere, MDPI AG, Vol. 14, No. 6 ( 2023-05-31), p. 961-
    Abstract: Groundwater droughts can explain developments and changes in groundwater from a climatological perspective. The North China Plain (NCP) is a typical underground funnel area. Therefore, groundwater drought studies in the NCP can provide better understanding of the local hydrogeological characteristics from new perspectives. In this paper, the GRACE groundwater drought index (GGDI) was used to evaluate groundwater drought events in the NCP. Additionally, a new method was proposed in this study for investigating groundwater drought events at the spatiotemporal scale. On this basis, the centroid theory was used to construct an appropriate groundwater drought migration model for the NCP. The results showed that (1) the groundwater drought frequency in the NCP was 24.54%. In addition, the most severe groundwater drought events in the study occurred in March 2020. (2) In total, 49 groundwater drought events occurred in the NCP over the 2003–2020 period. The most intense groundwater drought event occurred over the June 2018–December 2020 period (DE.49), covering the entire study area. DE.29 was the second most intense groundwater drought event over the August 2012–September 2013 period (14 months), resulting in a maximum arid area of 75.57% of the entire study area. (3) The migration of the groundwater drought events was in the southwest–northeast and northeast–southwest directions, which was consistent with the terrain inclination, while most of the groundwater drought centroids were concentrated in Area II. The groundwater drought event identification method and the groundwater drought migration model were effective and reliable for assessing groundwater drought events in the NCP and provided a better understanding of developments and changes in groundwater droughts, which is of great practical significance and theoretical value for the rational development and use of groundwater resources, as well as for guiding industrial and agricultural activities.
    Type of Medium: Online Resource
    ISSN: 2073-4433
    URL: Article
    DOI: 10.3390/atmos14060961
    Language: English
    Publisher: MDPI AG
    Publication Date: 2023
    detail.hit.zdb_id: 2605928-9
    SSG: 23
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  • 6
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    Net effects of conservation agriculture principles on sustainable land use: A synthesis
    Wiley ; 2021
    In:  Global Change Biology Vol. 27, No. 24 ( 2021-12), p. 6321-6330
    Details
    In: Global Change Biology, Wiley, Vol. 27, No. 24 ( 2021-12), p. 6321-6330
    Abstract: Despite the strong recommendations from scientists, to till or not to till remains a confusing question for many farmers around the world due to the worries of crop yield decline and negative impacts on soils and environment. A confused understanding of the role of the individual principles of conservation agriculture significantly limits the effectiveness and applicability of soil conservation strategies and frameworks to achieve sustainable agriculture. By distinguishing clearly between the different principles of conservation agriculture, the net effects of no‐tillage on improving and sustaining agro‐ecosystems are analyzed based on 49 recent meta‐analyses in this study. The review shows that no‐tillage leads to a significant decline of crop yield (−8.0% to 10.0%, median: −1.9%), whereas residue retention represents the key driver for improving crop production (4.0%–28.0%, median: 8.2%). The efficacy of no‐tillage for water erosion control, especially runoff (−24.0% to −0.7%, median: −10.0%), is often insignificant and otherwise lower compared to residue retention (−87.0% to −14.0%, median: −45.5%). Soil carbon sequestration potential under conservation tillage is quite limited or even close to zero, and if any, it can likely be attributed to the associated residue retention (−0.1% to 12.8%, median: 9.7%) rather than no‐tillage (−2.0% to 10.0%, median: 4.8%). Our analysis illustrates that in conservation agriculture, no‐tillage as the original and central principle of soil management is often less effective than associated supplementary measures, in particular residue retention. Residue retention may therefore play a key role for achieving sustainable land use. An additional benefit of residue retention is the less dramatic change of farming practices compared to no‐tillage. The results of this review illustrate that a new framework for assessing the benefits of conservation practices has to be developed. To till, or not to till, is not the question: residue retention seems more critical.
    Type of Medium: Online Resource
    ISSN: 1354-1013 , 1365-2486
    URL: Issue
    URL: Article
    DOI: 10.1111/gcb.v27.24
    DOI: 10.1111/gcb.15906
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 2020313-5
    SSG: 12
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  • 7
    Online Resource
    Online Resource
    Response of Variation of Water and Sediment to Landscape Pattern in the Dapoling Watershed
    MDPI AG ; 2022
    In:  Sustainability Vol. 14, No. 2 ( 2022-01-08), p. 678-
    Details
    In: Sustainability, MDPI AG, Vol. 14, No. 2 ( 2022-01-08), p. 678-
    Abstract: The relationship between water-sediment processes and landscape pattern changes has currently become a research hotspot in low-carbon water and land resource optimization research. The SWAT-VRR model is a distributed hydrological model which better shows the effect of land use landscape change on hydrological processes in the watershed. In this paper, the hydrological models of the Dapoling watershed were built, the runoff and sediment yield from 2006 to 2011 were simulated, and the relationship between landscape patterns and water-sediment yield was analyzed. The results show that the SWAT-VRR model is more accurate and reasonable in describing runoff and sediment yield than the SWAT model. The sub-basins whose soil erosion is relatively light are mostly concentrated in the middle reaches with a slope mainly between 0–5°. The NP, PD, ED, SPIIT, SHEI, and SHDI of the watershed increased slightly, and the COHESION, AI, CONTAG, and LPI showed a certain decrease. The landscape pattern is further fragmented, with the degree of landscape heterogeneity increasing and the connection reducing. The runoff, sediment yield and surface runoff are all extremely significantly negatively correlated with forest, which implies that for more complicated patch shapes of forest which have longer boundaries connecting with the patches of other landscape types, the water and sediment processes are regulated more effectively. Therefore, it can be more productive to carry out research on the optimization of water and soil resources under the constraint of carbon emission based on the SWAT-VRR model.
    Type of Medium: Online Resource
    ISSN: 2071-1050
    URL: Article
    DOI: 10.3390/su14020678
    Language: English
    Publisher: MDPI AG
    Publication Date: 2022
    detail.hit.zdb_id: 2518383-7
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  • 8
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    Online Resource
    Study on the High Strength Cable Truss System Control of the Surrounding Coal Roadway Excavated in Regions Left Intensively Mining-Induced Stresses
    MDPI AG ; 2023
    In:  Applied Sciences Vol. 13, No. 18 ( 2023-09-20), p. 10504-
    Details
    In: Applied Sciences, MDPI AG, Vol. 13, No. 18 ( 2023-09-20), p. 10504-
    Abstract: In coal mine roadway support, the arrangement of roadways in areas with high-stress concentrations is a challenging issue. It is crucial to solve this problem in order to ensure the safety and productivity of the mine. In this study, we selected a typical roadway in Zhong Xing Coal Mine, Fen Xi, Shanxi Province, as our research focus. We analyzed the deformation and failure characteristics of the surrounding rock under field mining pressure during roadway excavation through theoretical analysis, numerical simulation, and on-site measurements. Using the Flac3D numerical simulation technique, we studied the stress distribution characteristics of the roadway in the stress concentration area. To address the significant deformation of the roadway, we proposed a high-pretensioned top beam high-strength dual-anchor truss support system (HSCTS) and carefully studied its control mechanism and structural characteristics. After simulating and comparing its support effectiveness with the original support scheme and conducting on-site industrial tests, we determined the HSCTS support system as the alternative support system for roadway 1409. The test results showed that the convergence of the rib plates and the roof was no more than 79 mm and 191 mm, respectively. The significant influence of the roadway on the control of the surrounding rock also indicated effective control of the surrounding rock’s deformation along the 1409 goaf. The support control technology system can provide specific reference values for roadways under similar geological production conditions.
    Type of Medium: Online Resource
    ISSN: 2076-3417
    URL: Article
    DOI: 10.3390/app131810504
    Language: English
    Publisher: MDPI AG
    Publication Date: 2023
    detail.hit.zdb_id: 2704225-X
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  • 9
    Online Resource
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    Groundwater Drought and Cycles in Xuchang City, China
    Frontiers Media SA ; 2021
    In:  Frontiers in Earth Science Vol. 9 ( 2021-9-21)
    Details
    In: Frontiers in Earth Science, Frontiers Media SA, Vol. 9 ( 2021-9-21)
    Abstract: The urban groundwater system is complex and affected by the interaction of natural and human factors. Groundwater scarcity can no longer reflect this complex situation, and the concept of groundwater drought can better interpret this situation. The groundwater drought cycle is the time interval in which groundwater droughts occur repeatedly and twice in a row. The study of the groundwater drought cycle can more comprehensively grasp the development characteristics of the groundwater drought, which is of great importance for the development, utilization, and protection of groundwater. This study used monthly observation data from seven groundwater wells in Xuchang, China, in the period 1980–2018. We applied the Kolmogorov–Smirnov test to select the best fitting distribution function and constructed a Standardized Groundwater Index (SGI). We analyzed groundwater drought at different time scales and used Morlet’s continuous complex wavelet transform to analyze the groundwater drought cycles. The following results were obtained: 1) the maximum intensity of groundwater drought in the seven observation wells ranged from 104.40 to 187.10. Well-3# has the most severe groundwater drought; 2) the drought years of well-5# were concentrated in 1984–1987 and 2003–2012 and those in the other wells in 1994–1999 and 2014–2018; and 3) the groundwater drought cycles in the seven observation wells were 97–120 months, and the average period is about 110 months. The cycle length had the following order: well-7# & gt; well-4# & gt; well-5# & gt; well-2# & gt; well-1# & gt; well-3# & gt; well-6. Therefore, Morlet wavelet transform analysis can be used to study the groundwater drought cycles and can be more intuitive in understanding the development of regional groundwater droughts. In addition, through the study of the Xuchang groundwater drought and its cycle, the groundwater drought in Xuchang city has been revealed, which can help local relevant departments to provide technical support and a scientific basis for the development, utilization, and protection of groundwater in the region.
    Type of Medium: Online Resource
    ISSN: 2296-6463
    URL: Article
    DOI: 10.3389/feart.2021.736305
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2021
    detail.hit.zdb_id: 2741235-0
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  • 10
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    Hashtag our stories: Hashtag recommendation for micro-videos via harnessing multiple modalities
    Elsevier BV ; 2020
    In:  Knowledge-Based Systems Vol. 203 ( 2020-09), p. 106114-
    Details
    In: Knowledge-Based Systems, Elsevier BV, Vol. 203 ( 2020-09), p. 106114-
    Type of Medium: Online Resource
    ISSN: 0950-7051
    URL: Article
    DOI: 10.1016/j.knosys.2020.106114
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2020
    detail.hit.zdb_id: 2017495-0
    SSG: 24,1
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