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  1. Article ; Online: Transient Dynamics of a Food Chain Model with Vigilance in the Biparameter Spaces

    Min Wu

    Complexity, Vol

    2023  Volume 2023

    Abstract: This article focuses on the asymptotic and transient behavior of a food chain model with vigilance in the biparameter spaces. Firstly, the local asymptotic stability conditions of the positive equilibrium point are obtained. Then, the transient dynamical ...

    Abstract This article focuses on the asymptotic and transient behavior of a food chain model with vigilance in the biparameter spaces. Firstly, the local asymptotic stability conditions of the positive equilibrium point are obtained. Then, the transient dynamical behavior of the positive equilibrium point is analyzed based on eight parameters. Using numerical simulation, the stable regions of the model with single and double parameters are plotted, as well as the value changes of resilience, reactivity, and amplification envelope within the stable regions. The results show that the coexistence equilibrium point is always reactive, and the corresponding parameter ranges for system stability are large, but the resilience values are small. The vigilance parameter of the middle- and lower-level organisms has the greatest impact on the system’s resilience and reactivity, and the lowest vigilance corresponds to the maximum resilience and reactivity. Our results provide important references for effective management and protection of wild animal populations by the potential for transient amplification, disturbance growth time, and amplitude.
    Keywords Electronic computers. Computer science ; QA75.5-76.95
    Subject code 612
    Language English
    Publishing date 2023-01-01T00:00:00Z
    Publisher Hindawi-Wiley
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Research on intelligent operation and maintenance management technology based on Microgrid group

    Min Wu

    E3S Web of Conferences, Vol 329, p

    2021  Volume 01077

    Abstract: In this paper, the research and platform development of cloud based microgrid cluster operation and maintenance management technology are carried out in Tibet, the solar thermal power combined microgrid system is built at decentralized load points, the ... ...

    Abstract In this paper, the research and platform development of cloud based microgrid cluster operation and maintenance management technology are carried out in Tibet, the solar thermal power combined microgrid system is built at decentralized load points, the data of each independent new energy system is integrated and shared by using Internet technology, and the unified operation, maintenance, monitoring and management of microgrid cluster are realized through the cloud platform, It can greatly improve the use efficiency of clean energy, improve the power supply quality and reliability of users, reduce the operation and maintenance cost, improve the work efficiency and system operation reliability, realize the intelligent monitoring, operation and maintenance and management of photovoltaic power generation and micro electric network group, and provide new operation and maintenance management methods and development ideas for the multi energy complementary and comprehensive utilization of Tibet Autonomous Region.
    Keywords tibet region ; solar energy utilization ; microgrid group ; intelligent operation and maintenance ; Environmental sciences ; GE1-350
    Subject code 690
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Optimization of E-Commerce Supply Chain Management Process Based on Internet of Things Technology

    Min Wu

    Complexity, Vol

    2021  Volume 2021

    Abstract: The widespread use of Internet technology has changed people’s traditional life mode and created a new market transaction mode, namely, e-commerce platform. The Internet of Things can carry out real-time monitoring and management of any product in e- ... ...

    Abstract The widespread use of Internet technology has changed people’s traditional life mode and created a new market transaction mode, namely, e-commerce platform. The Internet of Things can carry out real-time monitoring and management of any product in e-commerce and not only can realize information sharing in commercial activities but also can play a greater role in the protection of personal and enterprise information security. In this context, the efficiency and low cost of information flow, cash flow, logistics, and human resources among enterprises are particularly important. The Internet of Things technology is a means to effectively improve and optimize the operation mode of the supply chain. This paper analyzes the status of traditional supply chain management, which discusses the development of a supply chain management based on the Internet of Things technology. Finally, this paper analyzes how to realize the optimization strategy of e-commerce supply chain management based on the Internet of Things technology, which provides strong support for the informatization of e-commerce supply chain management. Through the application of the Internet of Things technology, small- and medium-sized enterprises can optimize the workflow and circulation links of the e-commerce supply chain management, enhance the matching level of product value and information transmission, improve the supply chain operation mechanism, and increase economic benefits.
    Keywords Electronic computers. Computer science ; QA75.5-76.95
    Subject code 303
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher Hindawi-Wiley
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: An Empirical Study on the Impact of Environmental Regulation on the Efficiency of Green Technology Innovation

    Min Wu

    E3S Web of Conferences, Vol 248, p

    2021  Volume 02029

    Abstract: This paper uses two-stage super efficiency network SBM DEA model to calculate the efficiency of green technology innovation, and analyzes the spillover effect of three different environmental regulations, namely command control, market incentive and ... ...

    Abstract This paper uses two-stage super efficiency network SBM DEA model to calculate the efficiency of green technology innovation, and analyzes the spillover effect of three different environmental regulations, namely command control, market incentive and independent participation. The results show that the direct effect of the command control environmental regulation on the efficiency of green technology innovation is positive, the indirect effect and the total effect are negative; the direct effect, indirect effect and total effect of market incentive environmental regulation and independent participation Environmental Regulation on the efficiency of green technology innovation are positive.
    Keywords Environmental sciences ; GE1-350
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Causal effects of genetically determined blood metabolites on multiple myeloma

    Jialin Ren / Min Wu

    Scientific Reports, Vol 13, Iss 1, Pp 1-

    a Mendelian randomization study

    2023  Volume 9

    Abstract: Abstract Previous studies have shown that metabolites play an important role in phenotypic regulation. However, the causal relationship between metabolites and multiple myeloma has not been adequately investigated. Here, we attempt to explore the causal ... ...

    Abstract Abstract Previous studies have shown that metabolites play an important role in phenotypic regulation. However, the causal relationship between metabolites and multiple myeloma has not been adequately investigated. Here, we attempt to explore the causal effects of genetically determined blood metabolites on multiple myeloma. The large-scale public blood metabolites and multiple myeloma datasets from independently published genome-wide association studies (GWAS) were used to explore the causal relationship between each genetically determined blood metabolite and multiple myeloma through inverse variance weighted (IVW), weighted median, MR-Egger and mode-based estimation methods. Sensitivity tests were performed to evaluate the stability and reliability of the results by MR-Egger regression and leave-one-out methods. Metabolic pathway analysis was further explored using filtered data. Statistical analyses were all performed in R. Among 452 metabolites, ten known metabolites and three unknown metabolites had significant causal relationship with multiple myeloma (P < 0.05). Four known metabolites, 3-methyl-2-oxovalenate, oxidized bilirubin, isovalerylcarnitine and glutamine carnitine, reached statistical significance in IVW models. Metabolic pathways analysis identified four significant pathways. The occurrence of multiple myeloma may have a causal relationship with these four metabolites, and there are four metabolic pathways that are also related to the occurrence of multiple myeloma. This can provide new ideas for exploring early screening and treatment of multiple myeloma.
    Keywords Medicine ; R ; Science ; Q
    Subject code 500
    Language English
    Publishing date 2023-11-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: A taxonomic note on the helicoid land snail genus Traumatophora (Eupulmonata, Camaenidae)

    Min Wu

    ZooKeys, Vol 835, Iss , Pp 139-

    2019  Volume 152

    Abstract: Traumatophora triscalpta (Martens, 1875) is reported for the first time from the Tianmushan Mountains, Zhejiang Province, and its morpho-anatomy is described based on this new material. The genus Traumatophora is redefined on the basis of both shell and ... ...

    Abstract Traumatophora triscalpta (Martens, 1875) is reported for the first time from the Tianmushan Mountains, Zhejiang Province, and its morpho-anatomy is described based on this new material. The genus Traumatophora is redefined on the basis of both shell and genital anatomy of its type species. The presence of the dart apparatus suggests this genus belongs to the subfamily Bradybaeninae rather than to the Camaeninae. This genus is distinguished from all other Chinese bradybaenine genera by the combination of the following key morphological characteristics: embryonic shell smooth, palatal teeth present, dart sac tiny with rounded proximal accessory sac that opens into a dart sac chamber, mucous glands well developed, entering an accessory sac through a papilla, epiphallic papilla absent, flagellum present. A comparison is also presented of Chinese bradybaenine genera with known terminal genitalia.
    Keywords Zoology ; QL1-991
    Subject code 590
    Language English
    Publishing date 2019-04-01T00:00:00Z
    Publisher Pensoft Publishers
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Research on digital twin modeling and monitoring technology for smoke alarm calibration system.

    Min, Wu / Wenfeng, Ying

    Scientific reports

    2023  Volume 13, Issue 1, Page(s) 19239

    Abstract: Aiming at the problems of backward calibration method of smoke alarm, low production efficiency and difficult real-time monitoring, a digital twin system modeling and monitoring method of smoke alarm calibration is proposed. First, through the analysis ... ...

    Abstract Aiming at the problems of backward calibration method of smoke alarm, low production efficiency and difficult real-time monitoring, a digital twin system modeling and monitoring method of smoke alarm calibration is proposed. First, through the analysis of smoke alarm calibration requirements, the overall framework design of the digital twin calibration system for smoke alarm is proposed, and then the twin model of smoke box is constructed by running the digital twin five-dimensional model. The physical smoke box, geometric model, physical model, rule model and behavior model are introduced in detail; Then the communication system architecture, data acquisition and data mapping are used to construct the twin data model; Finally, the feasibility was verified by the calibration system of an enterprise. Through the system, the qualified rate of smoke alarm calibration was increased from 98 to 99.6%, and the repair rate of defective products was reduced by 1.6%.
    Language English
    Publishing date 2023-11-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-023-46761-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Signaling pathways in the regulation of cancer stem cells and associated targeted therapy.

    Manni, Wang / Min, Wu

    MedComm

    2022  Volume 3, Issue 4, Page(s) e176

    Abstract: Cancer stem cells (CSCs) are defined as a subpopulation of malignant tumor cells with selective capacities for tumor initiation, self-renewal, metastasis, and unlimited growth into bulks, which are believed as a major cause of progressive tumor ... ...

    Abstract Cancer stem cells (CSCs) are defined as a subpopulation of malignant tumor cells with selective capacities for tumor initiation, self-renewal, metastasis, and unlimited growth into bulks, which are believed as a major cause of progressive tumor phenotypes, including recurrence, metastasis, and treatment failure. A number of signaling pathways are involved in the maintenance of stem cell properties and survival of CSCs, including well-established intrinsic pathways, such as the Notch, Wnt, and Hedgehog signaling, and extrinsic pathways, such as the vascular microenvironment and tumor-associated immune cells. There is also intricate crosstalk between these signal cascades and other oncogenic pathways. Thus, targeting pathway molecules that regulate CSCs provides a new option for the treatment of therapy-resistant or -refractory tumors. These treatments include small molecule inhibitors, monoclonal antibodies that target key signaling in CSCs, as well as CSC-directed immunotherapies that harness the immune systems to target CSCs. This review aims to provide an overview of the regulating networks and their immune interactions involved in CSC development. We also address the update on the development of CSC-directed therapeutics, with a special focus on those with application approval or under clinical evaluation.
    Language English
    Publishing date 2022-10-05
    Publishing country China
    Document type Journal Article ; Review
    ISSN 2688-2663
    ISSN (online) 2688-2663
    DOI 10.1002/mco2.176
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Study on the Distribution Law of Crustal Stress in Fault Fracture Area

    He-Lin Fu / Wu Xu / Yi-Min Wu

    Applied Sciences, Vol 13, Iss 7678, p

    2023  Volume 7678

    Abstract: Determining crustal stress is crucial in the design and construction of underground engineering projects, particularly in fault fracture zones. This paper aims to identify the characteristic factors that influence the crustal stress of faults, including ... ...

    Abstract Determining crustal stress is crucial in the design and construction of underground engineering projects, particularly in fault fracture zones. This paper aims to identify the characteristic factors that influence the crustal stress of faults, including the difference in deformation characteristics between faults and ordinary formations (expressed by the elastic modulus ratio E r / E f ), the degree of fault fragmentation P , and the angle α between fault tendency and the principal stress direction. Numerical simulations are conducted to investigate the impact of these three factors on the magnitude and direction of the principal stress. Additionally, measured stress values from a specific tunnel are analyzed to validate the findings. The results demonstrate the crucial role of α in determining the increase or decrease of principal stress and the direction of the offset. When α is less than 45°, σ 1 and σ 3 within the fault experience an increase, while σ 1 and σ 3 in the ordinary surrounding rock area near the fault exhibit a slight decrease. Moreover, the σ 1 direction inside the fault deviates towards the parallel fault, whereas σ 1 near the outside slightly deviates towards the vertical fault. Conversely, when α is greater than 45°, the trend of principal stress is reversed. E r / E f affects the magnitude of the principal stress change, with larger values resulting in more pronounced changes. P only affects the stress distribution inside the fault.
    Keywords fault area ; crustal stress ; distribution pattern ; numerical simulation ; Technology ; T ; Engineering (General). Civil engineering (General) ; TA1-2040 ; Biology (General) ; QH301-705.5 ; Physics ; QC1-999 ; Chemistry ; QD1-999
    Subject code 290
    Language English
    Publishing date 2023-06-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Editorial

    Brijesh K. Bansal / Sumer Chopra / Yih-Min Wu

    Frontiers in Earth Science, Vol

    Seismic hazard assessment of metropolitan cities: scenario and challenges

    2023  Volume 11

    Keywords seismic hazard (SH) ; metropolitan cities ; potential earthquake ; seismicity analysis ; ground motion ; Science ; Q
    Language English
    Publishing date 2023-05-01T00:00:00Z
    Publisher Frontiers Media S.A.
    Document type Article ; Online
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