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  1. Article: Genetic Diversity Analysis and Core Germplasm Construction of

    Zhou, Ziwei / Liu, Fen / Xu, Yanqin / Hu, Weiming

    Plants (Basel, Switzerland)

    2024  Volume 13, Issue 5

    Abstract: ... Rubus ... ...

    Abstract Rubus chingii
    Language English
    Publishing date 2024-02-23
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2704341-1
    ISSN 2223-7747
    ISSN 2223-7747
    DOI 10.3390/plants13050618
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Modeling and Optimization of Connected and Automated Vehicle Platooning Cooperative Control with Measurement Errors.

    Luo, Weiming / Li, Xu / Hu, Jinchao / Hu, Weiming

    Sensors (Basel, Switzerland)

    2023  Volume 23, Issue 21

    Abstract: This paper presents a cooperative control method for connected and automated vehicle (CAV) platooning, thus specifically addressing the challenge of sensor measurement errors that can disrupt the stability of the CAV platoon. Initially, the state-space ... ...

    Abstract This paper presents a cooperative control method for connected and automated vehicle (CAV) platooning, thus specifically addressing the challenge of sensor measurement errors that can disrupt the stability of the CAV platoon. Initially, the state-space equation of the CAV platooning system was formulated, thereby taking into account the measurement error of onboard sensors. The superposition effect of the sensor measurement errors was statistically analyzed, thereby elucidating its impact on cooperative control in CAV platooning. Subsequently, the application of a Kalman filter was proposed as a means to mitigate the adverse effects of measurement errors. Additionally, the CAV formation control problem was transformed into an optimal control decision problem by introducing an optimal control decision strategy that does not impose pure state variable inequality constraints. The proposed method was evaluated through simulation experiments utilizing real vehicle trajectory data from the Next Generation Simulation (NGSIM). The results demonstrate that the method presented in this study effectively mitigates the influence of measurement errors, thereby enabling coordinated vehicle-following behavior, achieving smooth acceleration and deceleration throughout the platoon, and eliminating traffic oscillations. Overall, the proposed method ensures the stability and comfort of the CAV platooning formation.
    Language English
    Publishing date 2023-11-06
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s23219006
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  3. Article ; Online: Adaptive convolutional sparsity with sub-band correlation in the NSCT domain for MRI image fusion.

    Hu, Qiu / Cai, Weiming / Xu, Shuwen / Hu, Shaohai / Wang, Lang / He, Xinyi

    Physics in medicine and biology

    2024  Volume 69, Issue 5

    Abstract: Objective. ...

    Abstract Objective.
    MeSH term(s) Algorithms ; Magnetic Resonance Imaging/methods ; Technology ; Image Processing, Computer-Assisted/methods
    Language English
    Publishing date 2024-02-26
    Publishing country England
    Document type Journal Article
    ZDB-ID 208857-5
    ISSN 1361-6560 ; 0031-9155
    ISSN (online) 1361-6560
    ISSN 0031-9155
    DOI 10.1088/1361-6560/ad2636
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 199: Show issues Location:
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  4. Article: Xiaoaiping improves the general state of rats with malignant ascites secondary to gastric cancer by blocking the TGF-β1 signaling pathway.

    Xu, Weiming / Liu, Yanshen

    American journal of translational research

    2023  Volume 15, Issue 1, Page(s) 612–621

    Abstract: Objective: To investigate the effect of Xiaoaiping on the general state of rats with malignant ascites secondary to gastric cancer by blocking the transforming growth factor-β1 (TGF-β1) signaling pathway.: Methods: Fifty healthy Wistar rats were ... ...

    Abstract Objective: To investigate the effect of Xiaoaiping on the general state of rats with malignant ascites secondary to gastric cancer by blocking the transforming growth factor-β1 (TGF-β1) signaling pathway.
    Methods: Fifty healthy Wistar rats were randomly divided into 5 groups, with 10 rats in each group. After successful modeling, 0.2 g/(20 g∙d), 0.4 g/(20 g∙d) and 0.8 g/(20 g∙d) of Xiaoaiping injections were administrated at the low dose group (LDG), medium dose group (MDG) and high dose group (HDG), respectively. The model group (MG) was injected intraperitoneally with the same amount of sterile normal saline for 8 d. Rats in the control group (CG) were healthy without any treatment. The general states (mental state, dietary habits, reactions and body shape) of rats in each group were observed. The abdominal circumference, platelet (PLT) count, white blood cell (WBC) count, serum ferritin (SF), ascites volume, cell survival rate, and expression levels of TGF-β1 signaling pathway (TGF-β1, Smad2) were compared among the groups.
    Results: PLT and WBC counts in the MG were lower than those in the CG. Ascites volume, tumor cell survival rate, and SF in the MG were higher than those in the LDG, MDG and HDG (
    Conclusion: Xiaoaiping could significantly reduce the ascites volume in rats with gastric cancer, inhibit the production of tumor cells in the abdominal cavity, and improve the general state of rats in a dose-dependent manner. The mechanism may be related to the down-regulation of the mRNA level of TGF-β1 and Smad2.
    Language English
    Publishing date 2023-01-15
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2471058-1
    ISSN 1943-8141
    ISSN 1943-8141
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  5. Article ; Online: Ostwald ripening for designing time-dependent crystal hydrogels.

    Liu, Qianwei / Fang, Yuanlai / Xiong, Xinhong / Xu, Weiming / Cui, Jiaxi

    Angewandte Chemie (International ed. in English)

    2024  Volume 63, Issue 17, Page(s) e202320095

    Abstract: Ostwald ripening (OR), a classic solution theory describing molecular transfer from metastable crystal to stable one, is applied to design time-dependent crystal hydrogels that can automatically change their mechanical properties. Using a system made ... ...

    Abstract Ostwald ripening (OR), a classic solution theory describing molecular transfer from metastable crystal to stable one, is applied to design time-dependent crystal hydrogels that can automatically change their mechanical properties. Using a system made from crosslinked polyacrylamide (PAM) and sodium acetate (NaAc), we demonstrate that metastable fibrous crystal networks of NaAc preferably form in PAM hydrogels via a polymer-involving mismatch nucleation. These fibrous crystals would undergo OR and evolve into isolated bulk crystals, leading to a significant reduction in material rigidity (179 folds) and interfacial adhesion (20 folds). This transformation can be applied to program time-dependent self-recovery in shape and self-delamination. Since OR is a ubiquitous, robust feature of various crystals, the approach reported here represents a new direction for designing advanced transient soft materials.
    Language English
    Publishing date 2024-03-15
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202320095
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  6. Article ; Online: SMAX1 interacts with DELLA protein to inhibit seed germination under weak light conditions via gibberellin biosynthesis in Arabidopsis.

    Xu, Peipei / Hu, Jinbo / Chen, Haiying / Cai, Weiming

    Cell reports

    2023  Volume 42, Issue 7, Page(s) 112740

    Abstract: Karrikins (KARs) were first identified as a class of small-molecule chemicals derived from smoke that promote seed germination. However, the implied mechanism is still not well understood. Here, we find that KAR signaling mutants have a lower germination ...

    Abstract Karrikins (KARs) were first identified as a class of small-molecule chemicals derived from smoke that promote seed germination. However, the implied mechanism is still not well understood. Here, we find that KAR signaling mutants have a lower germination percentage than that of wild type under weak light conditions, and KARs promote seed germination through transcriptional activation of gibberellin (GA) biosynthesis via SMAX1. SMAX1 interacts with the DELLA proteins REPRESSOR of ga1-3-LIKE 1 (RGL1) and RGL3. The interaction enhances the transcriptional activity of SMAX1 and inhibits GIBBERELLIN 3-oxidase 2 (GA3ox2) gene expression. The KAR signaling mutant seed germination defect under weak light is partially rescued by exogenous application of GA
    MeSH term(s) Arabidopsis/metabolism ; Arabidopsis Proteins/genetics ; Arabidopsis Proteins/metabolism ; Gene Expression Regulation, Plant ; Germination/genetics ; Gibberellins/metabolism ; Intracellular Signaling Peptides and Proteins/metabolism ; Seeds/genetics
    Chemical Substances Arabidopsis Proteins ; Gibberellins ; Intracellular Signaling Peptides and Proteins ; SMAX1 protein, Arabidopsis ; GAI protein, Arabidopsis
    Language English
    Publishing date 2023-07-04
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2649101-1
    ISSN 2211-1247 ; 2211-1247
    ISSN (online) 2211-1247
    ISSN 2211-1247
    DOI 10.1016/j.celrep.2023.112740
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  7. Article: Using beam-offset optical coherence tomography to reconstruct backscattered photon profiles in scattering media.

    Xu, Weiming / Wang, Hui

    Biomedical optics express

    2022  Volume 13, Issue 11, Page(s) 6124–6135

    Abstract: Raster scanning imaging technologies capture least scattered photons (LSPs) and reject multiple scattered photons (MSPs) in backscattered photons to image the underlying structures of a scattering medium. However, MSPs can still squeeze into the images, ... ...

    Abstract Raster scanning imaging technologies capture least scattered photons (LSPs) and reject multiple scattered photons (MSPs) in backscattered photons to image the underlying structures of a scattering medium. However, MSPs can still squeeze into the images, resulting in limited imaging depth, degraded contrast, and significantly reduced lateral resolution. Great efforts have been made to understand how MSPs affect imaging performance through modeling, but the techniques for visualizing the backscattered photon profile (BSPP) in scattering media during imaging are unavailable. Here, a method of reconstructing BSPP is demonstrated using beam-offset optical coherence tomography (OCT), in which OCT images are acquired at offset positions from the illumination beam. The separation of LSPs and MSPs based on the BSPP enables quantification of imaging depth, contrast, and lateral resolution, as well as access to the depth-resolved modulated transfer function (MTF). This approach presents great opportunities for better retrieving tissue optical properties, correctly interpreting images, or directly using MTF as the feedback for adaptive optical imaging.
    Language English
    Publishing date 2022-10-31
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2572216-5
    ISSN 2156-7085
    ISSN 2156-7085
    DOI 10.1364/BOE.469082
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  8. Article ; Online: Digital monitoring of the microchannel filling flow dynamics using a non-contactless smartphone-based nano-liter precision flow velocity meter.

    Xu, Weiming / Atik, Abdulkadir Yasin / Beker, Levent / Ceylan Koydemir, Hatice

    Biosensors & bioelectronics

    2024  Volume 252, Page(s) 116130

    Abstract: Microfluidic systems find widespread applications in diagnostics, biological research, chemistry, and engineering studies. Among their many critical parameters, flow rate plays a pivotal role in maintaining the functionality of microfluidic systems, ... ...

    Abstract Microfluidic systems find widespread applications in diagnostics, biological research, chemistry, and engineering studies. Among their many critical parameters, flow rate plays a pivotal role in maintaining the functionality of microfluidic systems, including droplet-based microfluidic devices and those used in cell culture. It also significantly influences microfluidic mixing processes. Although various flow rate measurement devices have been developed, the challenge remains in accurately measuring flow rates within customized channels. This paper presents the development of a 3D-printed smartphone-based flow velocity meter. The 3D-printed platform is angled at 30° to achieve transparent flow visualization, and it doesn't require any external optical components such as external lenses and filters. Two LED modules integrated into the platform create a uniform illumination environment for video capture, powered directly by the smartphone. The performance of our platform, combined with a customized video processing algorithm, was assessed in three different channel types: uniform straight channels, straight channels with varying widths, and vessel-like channel patterns to demonstrate its versatility. Our device effectively measured flow velocities from 5.43 mm/s to 24.47 mm/s, with video quality at 1080p resolution and 60 frames per second, for which the measurement range can be extended by adjusting the frame rate. This flow velocity meter can be a useful analytical tool to evaluate and enhance microfluidic channel designs of various lab-on-a-chip applications.
    MeSH term(s) Smartphone ; Biosensing Techniques ; Microfluidics ; Lab-On-A-Chip Devices ; Optical Devices ; Microfluidic Analytical Techniques
    Language English
    Publishing date 2024-02-13
    Publishing country England
    Document type Journal Article
    ZDB-ID 1011023-9
    ISSN 1873-4235 ; 0956-5663
    ISSN (online) 1873-4235
    ISSN 0956-5663
    DOI 10.1016/j.bios.2024.116130
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2275: Show issues Location:
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  9. Article ; Online: SMAX1 interacts with DELLA protein to inhibit seed germination under weak light conditions via gibberellin biosynthesis in Arabidopsis

    Peipei Xu / Jinbo Hu / Haiying Chen / Weiming Cai

    Cell Reports, Vol 42, Iss 7, Pp 112740- (2023)

    2023  

    Abstract: Summary: Karrikins (KARs) were first identified as a class of small-molecule chemicals derived from smoke that promote seed germination. However, the implied mechanism is still not well understood. Here, we find that KAR signaling mutants have a lower ... ...

    Abstract Summary: Karrikins (KARs) were first identified as a class of small-molecule chemicals derived from smoke that promote seed germination. However, the implied mechanism is still not well understood. Here, we find that KAR signaling mutants have a lower germination percentage than that of wild type under weak light conditions, and KARs promote seed germination through transcriptional activation of gibberellin (GA) biosynthesis via SMAX1. SMAX1 interacts with the DELLA proteins REPRESSOR of ga1-3-LIKE 1 (RGL1) and RGL3. The interaction enhances the transcriptional activity of SMAX1 and inhibits GIBBERELLIN 3-oxidase 2 (GA3ox2) gene expression. The KAR signaling mutant seed germination defect under weak light is partially rescued by exogenous application of GA3 or by GA3ox2 overexpression, and the rgl1 rgl3 smax1 triple mutant exhibits higher germination rates under weak light than the smax1 mutant. Thus, we show a crosstalk between KAR and GA signaling pathways via a SMAX1-DELLA module in regulating seed germination in Arabidopsis.
    Keywords CP: Plants ; Biology (General) ; QH301-705.5
    Subject code 580
    Language English
    Publishing date 2023-07-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
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  10. Article ; Online: Engineering artificial photosynthesis based on rhodopsin for CO

    Tu, Weiming / Xu, Jiabao / Thompson, Ian P / Huang, Wei E

    Nature communications

    2023  Volume 14, Issue 1, Page(s) 8012

    Abstract: Microbial rhodopsin, a significant contributor to sustaining life through light harvesting, holds untapped potential for carbon fixation. Here, we construct an artificial photosynthesis system which combines the proton-pumping ability of rhodopsin with ... ...

    Abstract Microbial rhodopsin, a significant contributor to sustaining life through light harvesting, holds untapped potential for carbon fixation. Here, we construct an artificial photosynthesis system which combines the proton-pumping ability of rhodopsin with an extracellular electron uptake mechanism, establishing a pathway to drive photoelectrosynthetic CO
    MeSH term(s) Carbon Dioxide/metabolism ; Rhodopsin/genetics ; Rhodopsin/metabolism ; Photosynthesis/genetics ; Cyanobacteria/genetics ; Cyanobacteria/metabolism
    Chemical Substances Carbon Dioxide (142M471B3J) ; Rhodopsin (9009-81-8)
    Language English
    Publishing date 2023-12-04
    Publishing country England
    Document type Journal Article
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-023-43524-4
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