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Research in Astronomy and Astrophysics 2024年第9期24卷 76-82页

作者： min Meng Qiu-Ju Huang Can-min deng Guangxi Key Laboratory for Relativistic Astrophysics School of Physical Science and TechnologyGuangxi UniversityNanning 530004China

In this paper,we upgrade the constraints for the Earth-mass primordial black hole mergers model based on the first Canadian Hydrogen Intensity Mapping Experiment(CHIME)/fast radio burst(FRB)*** the null hypothesis that the observed non-repeating FRBs originate from Earth-mass primordial black hole mergers,we find that how the charges were distributed in the primordial black hole population is well described by a double powerlaw function with typical charge value of law function with typical charge value of q_(c)/10^(-5)=1.60_(-0.28)^(+0.28),where the power-law index α_(1)=2.33_(-0.18)^(+0.15) for q

关键词： black hole physics (stars:)gamma ray burst:general (cosmology:)dark matter

Biological Eagle-eye Inspired Target Detection for Unmanned Aerial Vehicles Equipped with a Manipulator

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Machine Intelligence Research 2023年第5期20卷 741-752页

作者： Yi-min deng Si-Yuan Wang School of Automation Science and Electrical Engineering Beihang UniversityBeijing 100191China

Inspired by eagle eye mechanisms,the structure and information processing characteristics of the eagle′s visual system are used for the target capture task of an unmanned aerial vehicle(UAV)with a mechanical *** this paper,a novel eagle-eye inspired multi-camera sensor and a saliency detection method are proposed.A combined camera system is built by simulating the double fovea structure on the eagle retina.A saliency target detection method based on the eagle midbrain inhibition mechanism is proposed by measuring the static saliency information and dynamic ***,salient targets can be accurately detected through the collaborative work between different cameras of the proposed multi-camera *** results show that the eagle-eye inspired visual system is able to continuously detect targets in outdoor scenes and that the proposed algorithm has a strong inhibitory effect on moving background interference.

关键词： Unmanned aerial vehicle(UAV) eagle eye multi-camera sensor target detection saliency detection

Molecular genetics of cancer and tumorigenesis:Drosophila models

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Journal of Genetics and Genomics 2011年第10期38卷 429-430页

作者： Wu-min deng Department of Biological Science Florida State University Tallahassee FL 32306-4295 USA

Why do some cells not respond to normal control of cell division and become tumorous？ Which signals trigger some tumor cells to migrate and colonize other tissues？ What genetic factors are responsible for tumorigenesis and cancer development？ What environmental factors play a role in cancer formation and progression？ In how many ways can our bodies prevent and restrict the growth of cancerous cells？ How can we identify and deliver effective drugs to fight cancer？ In the fight against cancer, which kills more people than any other disease, these and other questions have long interested researchers from a diverse range of fields. To answer these questions and to fight cancer more effectively,

关键词： Molecular genetics cancer and tumorigenesis Drosophila

Numerical tests of theoretical models describing ionization of H(1s) atom by linearly polarized flat pulse of laser radiation

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Chinese Physics B 2018年第9期27卷 254-261页

作者： Jarostaw H Bauer min deng Katedra Fizyki Teoretycznej Wydzial Fizyki i lnformatyki Stosowanej Uniwersytetu LddzkiegoUI.Pomorska 149/153PL-90-236 LddlPoland State Key Laboratory o fLow-Dimensional Quantum Physics Department of PhysicsTsinghua UniversityBeijing 100084China

We derive the well-known Coulomb correction factor for the Gordon-Volkov wave function describing an outgoing electron in the process of ionization in an intense laser field. Although rigorous treatment would limit its use only to laser fields much lower than the so-called barrier-suppression field, it appears that in practice the correction factor may be used also close to and even above this critical value of the laser field. We compare predictions of several analytical expressions describing ionization rate of the hydrogen atom in its ground state in the strong linearly polarized laser field. We also compare ionization probabilities obtained by integrating these ionization rates over a temporal envelope of the laser pulse with predictions based on the exact numerical solution to the time-dependent Schr ¨odinger equation.

关键词： laser fields ionization S-matrix Coulomb-Volkov wave function

Study on the influence of armature on the efficiency of reluctance accelerator

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Defence Technology（防务技术） 2022年第2期18卷 293-304页

作者： Hui-min deng Yu Wang Zhong-ming Yan School of Electrical Engineering Southwest Jiaotong UniversityChengdu610031China

The armature is an important part affecting the energy conversion efficiency of a reluctance *** this paper,six kinds of soft magnetic materials are chosen and four structures are designed for the *** first,the circuit and magnetic force are theoretically *** the armatures with different materials and structures are used in the simulation,and the performances are compared and *** last,the experiment verifies the theory analysis and simulation *** is concluded that the saturation flux density and conductivity of the material are the key factors affecting the armature force,and the optimization of armature structure can effectively restrain the eddy current,reduce negative force and improve *** with cutting slits in solid armatures,laminating the sheets radially can reduce the eddy current more *** slitting can prevent the eddy current to a certain extent,meanwhile,it will decrease the magnetic force because of the losing of magnetized volume and the surface ***,choosing the high saturation flux density material and making out the armature with radially_laminated sheets will improve the efficiency of the reluctance *** this paper,the silicon steel radially_laminated armature is a better choice for the armature design of the reluctance accelerator.

关键词： Reluctance accelerator Armature design Soft magnetic material Magnetic force calculation Energy transformation efficiency

Kalman Filter Estimation of Lithium Battery SOC Based on Model Capacity Updating

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Energy Engineering 2022年第2期119卷 739-754页

作者： min deng Quan min Ge Yang Man Yu CCCC Second Highway Consultants Co. Ltd.Wuhan430056China Xi’an Aeronautical University Xi’an710077China Key Laboratory of Automobile Transportation Safety Guarantee Technology and Transportation Industry Xi’an710064China

High-precision estimation of lithium battery SOC can effectively optimize vehicle energy management,improve lithium battery safety protection,extend lithium battery cycle life,and reduce new energy vehicle *** on the forgetting factor recursive least square method(FFRLS),Thevenin equivalent circuit model and Singular Value Decomposition-Unscented Kalman Filter(SVD-UKF),the SVD-UKF combined lithium battery SOC estimation algorithm with model capacity update is proposed,aiming at further improving the SOC estimation accuracy of lithium *** parameter identification of Thevenin model is studied by using the forgetting factor recursive least square *** overcoming the shortcomings of Kalman filter linearization error and non-positive definite covariance matrix,the singular value decomposition unscented Kalman filter algorithm is *** is worth mentioning that in order to consider the impact of battery available capacity attenuation on the estimation of lithium battery SOC,the model capacity update algorithm is used to optimize the model parameters and state joint estimation algorithm based on FFRLS&*** by simulation and lithium battery test,the results show that the SVD-UKF algorithm based on model capacity update can accurately estimate the SOC of lithium battery in real time with the available capacity of lithium battery continuous *** purpose of improving the accuracy of SOC estimation of lithium batteries is achieved.

关键词： Lithium battery state of charge forgetting factor singular value decomposition unscented Kalman filter

A review of road safety evaluation methods based on driving behavior

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Journal of Traffic and Transportation Engineering(English Edition) 2023年第5期10卷 743-761页

作者： Zijun Du min deng Nengchao Lyu Yugang Wang Intelligent Transportation System Research Center Wuhan University of TechnologyWuhan 430063China Engineering Research Center of Transportation Information and Safety Ministry of EducationWuhan 430063China Wuhan Zhongjiao Traffic Engineering Co. Ltd.Wuhan 430000China

Road traffic safety should be evaluated throughout the entire life-cycle of road design,operation,maintenance,and expansion ***,traditional methods for evaluating road traffic safety based on traffic accidents and conflict technology are limited by their inability to account for the complex environmental factors *** address this issue,a new road safety evaluation method has emerged that is based on driving *** drivers’behaviors may vary depending on the driving environment and their personal characteristics,evaluating road safety from the perspective of driver behavior has become a popular research *** paper analyzes current research trends and mainstream journals in the field of road safety evaluation of driving ***,it reviews the three most commonly used driving behavior data collection methods,and compares the advantages and disadvantages of *** paper proposes the main application scenarios of road safety evaluation methods based on driving behavior,such as road design,evaluation of the effects of road appurtenances,and intelligent ***,the paper summarizes a driving behavior index system based on vehicle data,driver’s physiological and psychological data,and driver’s subjective questionnaire data.A comprehensive evaluation method based on the fusion of each index system is presented in ***,the paper points out current research problems and the future development direction of the road safety evaluation method based on driving behavior.

关键词： Traffic engineering Review Driving behavior Traffic safety Evaluation

Stability control of gob-side entry retained under the gob with close distance coal seams

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International Journal of mining Science and Technology 2021年第2期31卷 321-332页

作者： Zizheng Zhang min deng Jianbiao Bai Shuai Yan Xianyang Yu Work Safety Key Lab on Prevention and Control of Gas and Roof Disasters for Southern Coal mines Hunan Provincial Key Laboratory of Safe Mining Techniques of Coal MinesHunan University of Science and TechnologyXiangtan 411201China State Key Laboratory of Coal Resources and Safe mining China University of Mining and TechnologyXuzhou 221116China Jiangsu Engineering Laboratory of mine Earthquake Monitoring and Prevention School of MinesChina University of Mining and TechnologyXuzhou 221116China

In multi-seam mining,the interlayer rock strata between the upper coal seam(UCS)and the lower coal seam(LCS)appear damage and strength weakening after mining the *** stability control of the gob-side entry retaining(GER)under the gob with close distance coal seams(CDCS)is faced with difficulties due to little attention to GER under this *** paper focuses on surrounding rock stability control and technical parameters design for GER under the gob with *** floor rock strata damage characteristics after mining the UCS is first evaluated and the damage factor of the interlayer rock strata below the UCS is also ***,a structural mechanics model of GER surrounding rock is set up to obtain the main design parameters of the side-roadway backfill body(SBB)including the maximum and minimum SBB width calculation *** optimal SBB width and the water-to-cement ratio of high water quick-setting material(HWQM)to construct the SBB are determined as 1.2 m and 1.5:1.0,***,engineering trial tests of GER are successfully carried out at#5210 track transportation roadway of Xingwu *** results can guide GER design under similar mining and geological conditions.

关键词： Gob-side entry retaining Close distance coal seams Damage factor Interlayer rock strata Side-roadway backfill body

Digital ID framework for human-centric monitoring and control of smart buildings

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Building Simulation 2022年第10期15卷 1709-1728页

作者： min deng Xi Wang Da Li Carol C.Menassa Department of Civil and Environmental Engineering University of MichiganAnn ArborMI 48109USA Glenn Department of Civil Engineering Clemson UniversityClemsonSC 29634USA

Smart offices can help employers attract and retain talented people and can positively impact well-being and *** to emerging technologies and increased computational power,smart buildings with a specific focus on personal experience are gaining ***-time monitoring and estimation of the human states are key to achieving individual *** some studies have incorporated real-time data into the buildings to predict occupants’indoor experience(e.g.,thermal comfort and work engagement),a detailed framework to integrate personal prediction models with building systems has not been well ***,this paper proposes a framework to predict and track the real-time states of each individual and assist with decision-making(e.g.,room assignment and indoor environment control).The core idea of the framework is to distinguish individuals by a new concept of Digital ID(DID),which is then integrated with recognition,prediction,recommendation,visualization,and feedback *** establishment of the DID database is discussed and a systematic prediction methodology to determine occupants’indoor comfort is *** on the prediction results,the Comfort Score Index(CSI)is proposed to give recommendations regarding the best-fit rooms for each *** addition,a visualization platform is developed for real-time monitoring of the indoor *** demonstrate the framework,a case study is *** thermal sensation is considered the reference for the room allocation,and two groups of people are used to demonstrate the framework in different *** one group of people,it is assumed that they are existing occupants with personal DID *** in another group are considered the new occupants without any personal database,and the public database is used to give initial guesses about their thermal *** results show that the recommended rooms can provide better thermal environments for the occupan

关键词： smart office digital ID(DID) comfort prediction space recommendation human-centric monitoring real-time visualization

Paleoearthquake rupture behavior and recurrence of great earthquakes along the Haiyuan fault, northwestern China

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Science China Earth Sciences 2005年第3期48卷 364-375页

作者： ZHANG Peizhen min Wei deng Qidong MAO Fengying State Key Laboratory of Earthquake Dynamics Institute of Geology China Seismological Bureau Beijing 100029 China State Key Laboratory of Earthquake Dynamics Institute of Geology China Seismological Bureau Beijing 100029 China State Key Laboratory of Earthquake Dynamics Institute of Geology China Seismological Bureau Beijing 100029 China State Key Laboratory of Earthquake Dynamics Institute of Geology China Seismological Bureau Beijing 100029 China

The Haiyuan fault is a major seismogenic fault in north-central China where the 1920 Haiyuan earthquake of magnitude 8.5 occurred, resulting in more than 220000 deaths. The fault zone can be divided into three segments based on their geometric patterns and associated geomorphology. To study paleoseismology and recurrent history of devastating earthquakes along the fault, we dug 17 trenches along different segments of the fault zone. Although only 10 of them allow the paleoearthquake event to be dated, together with the 8 trenches dug previously they still provide adequate information that enables us to capture major paleoearthquakes oc- curring along the fault during the past geological time. We discovered 3 events along the eastern segment during the past 14000 a, 7 events along the middle segment during the past 9000 a, and 6 events along the western segment during the past 10000 a. These events clearly depict two temporal clusters. The first cluster occurs from 4600 to 6400 a, and the second occurs from 1000 to 2800 a, approximately. Each cluster lasts about 2000 a. Time period between these two clus- ters is also about 2000 a. Based on fault geometry, segmentation pattern, and paleoearthquake events along the Haiyuan fault we can identify three scales of earthquake rupture: rupture of one segment, cascade rupture of two segments, and cascade rupture of entire fault (three segments). Interactions of slip patches on the surface of the fault may cause rupture on one patch or ruptures of more than two to three patchs to form the complex patterns of cascade rupture events.

关键词： paleoearthquake event, recurrent interval, earthquake rupture pattern, temporal clustering, slip patch interaction.