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Ultrasound Visualized Stellate Ganglion Block Combined with Acupoint Catgut Implantation for the Treatment of Intractable Insomnia ZHANG Jiancheng, ZHOU Tenghao, ZHENG Hao Journal of Jishou University(Natural Sciences Edition)    2025, 46 (5): 77-81.   DOI: 10.13438/j.cnki.jdzk.2025.05.011 Abstract （689）      PDF（pc） （587KB）（332）       Knowledge map    Save To explore the clinical effect of ultrasound-guided stellate ganglion block combined with acupoint catgut implantation therapy in the treatment of intractable insomnia,60 patients with intractable insomnia who visited Shenzhen Pingle Orthopedic Hospital from January 1,2022 to December 31,2023 were selected as the research objects and randomly divided into the control group and the treatment group,with 30 cases in each group.The control group was treated with acupuncture,while the treatment group was treated with ultrasound-guided stellate ganglion block combined with acupoint catgut implantation therapy.The treatment course for both groups was 10 days.The effective rate and pittsburgh sleep quality index (PSQI) scores of the patients before and after treatment were analyzed.The results showed that the number of cases with complete recovery and marked improvement in the treatment group was significantly higher than that in the control group;the number of cases with no improvement in the treatment group was significantly lower than that in the control group;the effective rate of the treatment group was significantly higher than that of the control group;compared with the control group after treatment and the treatment group before treatment,the scores of 7 factors (sleep quality,sleep latency,sleep duration,sleep efficiency,sleep disturbance,use of hypnotic drugs,and daytime dysfunction) and PSQI scores of the treatment group after treatment were significantly decreased.This indicates that ultrasound-guided stellate ganglion block combined with acupoint catgut implantation therapy is an effective method that can significantly prolong sleep duration and improve sleep quality. Reference | Related Articles | Metrics | Comments（0）

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Lightweight YOLOv5s with U2-Net for Intelligent Reading of Pointer Meters SU Yingying, SI Hongyun, TANG Xia, LIU Xinghua, GUO Lixia Journal of Jishou University(Natural Sciences Edition)    2025, 46 (4): 44-51.   DOI: 10.13438/j.cnki.jdzk.2025.04.007 Abstract （514）      PDF（pc） （9893KB）（223）       Knowledge map    Save Aiming at the problem of slow speed of intelligent positioning and low accuracy of reading for pointer meters,a method of intelligent reading for pointer meters based on YOLOv5s and U2-Net is proposed.Firstly,the partial batch normalization layer in the trunk and neck of YOLOv5s is used for channel pruning to realize the model lightweight and improve the speed of meter positioning;secondly,in view of shadow and noisy images collected in the field,the image is enhanced,so as to make the model suitable for complex environments;and then,the U2-Net model is adopted to segment the pointer and the scale,to locate the relative position of pointer on the scale,and to improve the accuracy of readings.Then,the U2-Net model is used to segment the pointer and the scale,locate the relative position of the pointer on the scale,and improve the accuracy of the readings;finally,the distance method is used for meter reading.The results of the experiment and reading test show that the size of the lightweight YOLOv5s model is reduced by 56.35%,the positioning time is reduced by 18.18%,the accuracy of the reading recognition test is 93.42%,the average absolute error is 0.032,the average reading error rate is 0.605%,and the average test time per picture is 0.402 s,which meets the industrial inspection requirements. Reference | Related Articles | Metrics | Comments（0）

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Skin Effect of One-Dimensional Non-Hermitian Circuit Systems ZHOU Dongmei, KONG Peng, WANG Xiaoyun, DENG Ke Journal of Jishou University(Natural Sciences Edition)    2025, 46 (4): 68-72.   DOI: 10.13438/j.cnki.jdzk.2025.04.010 Abstract （459）      PDF（pc） （754KB）（160）       Knowledge map    Save A one-dimensional non-Hermitian Hatono-Nelson single-chain circuit model was designed.By varying the inter-chain coupling strength,the non-Hermitian skin effect in three different parameter conditions was explored.On this basis,circuit simulation experiments were carried out.The results show that when the interchain coupling is reciprocal (Hermitian limit),the system's PBC energy spectrum coincides with the OBC energy spectrum,the generalized Brillouin zone (GBZ) is identical with the Brillouin zone (BZ),and the eigenstates extend throughout the bulk,forming extended states.When the interchain coupling is non-reciprocal with a rightward coupling strength greater than the leftward coupling strength,the PBC and OBC energy spectra differ significantly,the GBZ lies inside the BZ,and the eigenstates localize to the left,forming left skin modes.Conversely,when the rightward coupling strength is smaller than the leftward coupling strength,the PBC and OBC energy spectra also differ substantially,the GBZ encloses the BZ,and the eigenstates localize to the right,forming right skin modes.The skin effect in all three cases can be successfully observed in the circuit simulations,and the experimental results agree well with theoretical calculations. Reference | Related Articles | Metrics | Comments（0）

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Study on the Effect and Mechanism of Semen Raphani Oil in the Treatment of Chilblains LEI Yan, JIN Shuo, DI Kaiyin, LIU Yuhui, YANG Ting, XIAO Ya, XU Da, WU Guanghui Journal of Jishou University(Natural Sciences Edition)    2025, 46 (5): 59-68.   DOI: 10.13438/j.cnki.jdzk.2025.05.009 Abstract （457）      PDF（pc） （13988KB）（110）       Knowledge map    Save To investigate the anti-chilblain effect and mechanism of Semen Raphani oil,a mouse chilblains model was established to observe the effects of Semen Raphani oil on paw swelling rate,pain threshold,and pathological changes in chilblained tissues.Network pharmacology was used to explore the anti-chilblain components,targets,and signaling pathways of Semen Raphani oil.Animal experiments showed that Semen Raphani oil significantly alleviated paw swelling,increased the pain threshold in chilblained mice,relieved skin edema,and reduced the number of mast cells in chilblained tissues.Network pharmacology predictions indicate that Semen Raphani oil may interact with 38 potential targets in the treatment of chilblains.The core targets include MAOB,HSP90AB1,PTGS2,PTGS1,ACTB,MYC,PGR,NCOA2,RELA,and RXRA.The primary signaling pathways involved are neuroactive ligand signaling,chemical carcinogenesis-receptor activation,human cytomegalovirus infection,and the phosphatidylinositol-3-kinase-protein kinase B (PI3K-Akt) pathway.Key biological functions associated with these targets include smooth muscle contraction,xenobiotic stimulus response,and thermogenesis. Reference | Related Articles | Metrics | Comments（0）

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Finite-Time Synchronization of Discontinuous Inertial Neural Networks Based on Event-Triggered Mechanism  ZENG Zhiyuan, DAI Houping, CHEN Teng Journal of Jishou University(Natural Sciences Edition)    2025, 46 (5): 19-28.   DOI: 10.13438/j.cnki.jdzk.2025.05.004 Abstract （440）      PDF（pc） （737KB）（141）       Knowledge map    Save The finite-time event-triggered control problem of a class of time-delay inertial neural networks with discontinuous activation functions is studied.The second-order inertial neural network is transformed into the form of a first-order neural network through the variable substitution method.Based on the characteristics of discontinuous activation functions,the solution of the neural network is defined using the Filippov solution framework.A new event-triggered controller is designed in combination with the finite-time stability theory,and the trigger interval is restricted to avoid the Zeno phenomenon.On this basis,the discrimination criteria for the network to achieve finite-time synchronization are derived to ensure that this type of second-order inertial neural network achieves synchronization within a finite time. Reference | Related Articles | Metrics | Comments（0）

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Watermarking Algorithm Against Rotation Attack Based on Multi-Transform Domain YU Shuaizhen, YIN Hongcai, XIE Daoping Journal of Jishou University(Natural Sciences Edition)    2025, 46 (5): 29-36.   DOI: 10.13438/j.cnki.jdzk.2025.05.005 Abstract （428）      PDF（pc） （2792KB）（289）       Knowledge map    Save To enhance the ability of transform domain digital watermarking to resist rotation attacks,the article proposes a watermarking algorithm that fuses multiple domains to resist arbitrary rotation angle attacks.First,the host image is subjected to DWT transformation,then the low-frequency coefficients of the last level are subjected to SVD,and finally,based on the size of the watermark information an appropriate position in the singular value matrix is selected to embed the scrambled and encrypted watermark signal.The experimental results show that the algorithm has good watermark information hiding ability and can completely resist single rotation attacks ranging from 1°~360°.At the same time,it has strong robustness against combination attacks of image rotation attacks combined with cropping,JPEG compression and other attacks,and can effectively resist conventional signal processing. Reference | Related Articles | Metrics | Comments（0）

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New Planck Constant Measurement Experiment Based on Visibility Principle BAO Sha, LUO Jin, CHEN Qixuan, DAI Wenbin, WU Yunwen Journal of Jishou University(Natural Sciences Edition)    2025, 46 (6): 42-46.   DOI: 10.13438/j.cnki.jdzk.2025.06.006 Abstract （422）      PDF（pc） （746KB）（106）       Knowledge map    Save Based on the Newton ring interference experiment and the photoelectric effect experiment,the model simulation and data analysis of the principle of light interference experiment were carried out with the help of Matlab software.On this basis,the relationship between the maximum frequency of incident light and the cut-off voltage of six types of colored glass combined with incandescent lamps to form incident light sources with different wavelength ranges was explored.A new method for measuring Planck's constant based on the principle of visibility was proposed.Firstly,natural light was filtered through colored glass to obtain a small band light source.Secondly,the frequency range of the incident light was determined by Newton's rings interference to obtain the maximum frequency.Then,the cut-off voltage was measured by the zero current method,and the relationship between the maximum frequency of the incident light and the cut-off voltage was analyzed.Finally,Planck's constant h was calculated to be approximately 6.198×10-34 J·s,with a relative error of 6.46%.This method can measure Planck's constant in a simple environment. Reference | Related Articles | Metrics | Comments（0）

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Space-Filling Property of Complementary Design Based on Doubling WU Yue, XIE Jiayan, LI Hongyi Journal of Jishou University(Natural Sciences Edition)    2025, 46 (4): 38-43.   DOI: 10.13438/j.cnki.jdzk.2025.04.006 Abstract （410）      PDF（pc） （511KB）（119）       Knowledge map    Save Taking two-level equidistant designs as the research objects,based on the wrap-around L2-discrepancy,the generalized wordlength pattern,and the Hamming distance,we discuss the analytical relationship between the double design and the complementary design of the sub-designs in two-level equidistant designs. Reference | Related Articles | Metrics | Comments（0）

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Sound Insulation Law of Large-Sized Thin-Film Honeycomb Acoustic Metamaterial JIANG Junqi, LIN Yuanyan, DENG Ke, JIA Han, ZHAO Chenhui Journal of Jishou University(Natural Sciences Edition)    2025, 46 (4): 81-88.   DOI: 10.13438/j.cnki.jdzk.2025.04.012 Abstract （404）      PDF（pc） （2142KB）（123）       Knowledge map    Save Based on a design integrating single-layer PET film and single-layer aluminum honeycomb,this study developed a large-sized thin-film honeycomb acoustic metamaterial.Experimental investigations were conducted to comprehensively analyze the effects of honeycomb core parameters—side length,wall thickness,and height—on the sound insulation performance,along with proposing a novel evaluation metric,that is,the ratio of average sound insulation to surface density.The results demonstrate that the sound insulation performance of the metamaterial exceeds the prediction of the mass law within the 400~1 600 Hz frequency range.Superior acoustic performance is achieved when the honeycomb core possesses a side length of 2 mm,a wall thickness of 0.06 mm,and a height of 10 mm.Higher acoustic efficiency is observed when the honeycomb core has a side length of 7 mm,a wall thickness of 0.05 mm,and a height of 7 mm. Reference | Related Articles | Metrics | Comments（0）

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A Type of Infectious Disease Model with Media Impact Factor and Vaccination Rate WANG Liping, XIE Jingli Journal of Jishou University(Natural Sciences Edition)    2025, 46 (4): 28-37.   DOI: 10.13438/j.cnki.jdzk.2025.04.005 Abstract （403）      PDF（pc） （748KB）（120）       Knowledge map    Save A type of infectious disease model with media impact  factor and vaccination rate has been established.The basic reproduction number of the model was given through the next-generation matrix method.Then,by constructing a Lyapunov function and utilizing the LaSalle invariance principle,the existence and stability of the disease-free equilibrium point and endemic equilibrium point of the model are analyzed. Reference | Related Articles | Metrics | Comments（0）

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Multipole Corner States and Edge States of the Orbital Kagome XIE Wenjie, WANG Xiaoyun, KONG Peng, DENG Ke Journal of Jishou University(Natural Sciences Edition)    2025, 46 (5): 53-58.   DOI: 10.13438/j.cnki.jdzk.2025.05.008 Abstract （382）      PDF（pc） （5499KB）（125）       Knowledge map    Save To study the orbital topological states in phonon crystals,a special orbital Kagome lattice supporting p orbitals was constructed by connecting disc-shaped acoustic cavities with a pair of parallel coupling tubes,and the corner states of the Kagome lattice in the p orbital mode were explored.The results show that the lattice corner states are rich in both types and quantities,and are divided into type Ⅰ corner states and type Ⅱ corner states,with a total of 24.Type Ⅰ corner states are formed by the orbital interactions between the two outermost atoms.There are four types (Type Ⅰ σ -symmetric corner states,type Ⅰ σ-antisymmetric corner states,type Ⅰ π -symmetric corner states,and type Ⅰ π  -antisymmetric corner states).Type Ⅱ corner states are corner states that do not rely on long-range coupling.There are also four types,including type Ⅱ σ symmetric corner state,type Ⅱ σ antisymmetric corner state,Type Ⅱ π symmetric corner state and Type Ⅱ π antisymmetric corner state. Reference | Related Articles | Metrics | Comments（0）

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Local Well-Posedness of Solutions to the MHD and Hall-MHD Systems WANG Miaomiao, MA Deyi, BIE Qunyi Journal of Jishou University(Natural Sciences Edition)    2025, 46 (4): 5-10.   DOI: 10.13438/j.cnki.jdzk.2025.04.002 Abstract （378）      PDF（pc） （522KB）（130）       Knowledge map    Save This paper studies the local well-posedness for the 3D generalized incompressible magneto-hydrodynamic (MHD) and Hall-magnetohydrodynamic (Hall-MHD) systems.Firstly,we present the estimations of the heat kernel in Morrey spaces.Then,by using Picard's fixed point argument,we prove that when parameters α1,α2 satisfy certain conditions and the initial data satisfies (u0,b0)∈Mr,p(R3)，where 1<r<p<+∞ and p>3，the solutions to these two systems are locally well-posed in homogeneous Morrey spaces. Reference | Related Articles | Metrics | Comments（0）

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Vacancy and Doping Modulation Photogalvanic Effect in α-Se Photodetector WU Xiuwen, LIAO Wenhu Journal of Jishou University(Natural Sciences Edition)    2025, 46 (4): 73-80.   DOI: 10.13438/j.cnki.jdzk.2025.04.011 Abstract （374）      PDF（pc） （3136KB）（154）       Knowledge map    Save First-principles calculations of nonequilibrium Green's function combined with density functional theory are utilized to investigate the photogalvanic effects of α-Se photodetectors in the presence of single-atom vacancies,two-atom vacancies,and doping with Te,W,As,and Cd atoms.The results demonstrate that the single-atom vacancy can break the spatial symmetry of the device more greatly and generate stronger photocurrent.The maximum photoresponse of 32.61 a20/photon is obtained by doping with As atoms,and the extinction ratio of the device reaches 184.9 when Se atom are replaced by Cd atom,and the device possesses a more sensitive visible-light absorption along the y-direction,and the maximum photoresponse in y-direction is 1 369 times higher than that along the x-direction,showing an excellent anisotropic photoresponse. Reference | Related Articles | Metrics | Comments（0）

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Upper Bound Estimation of the Infinity Norm for the Inverse of Strict α1-Nekrasov Matrices YI Hong, MO Hongmin, HE Yongfang Journal of Jishou University(Natural Sciences Edition)    2025, 46 (6): 15-23.   DOI: 10.13438/j.cnki.jdzk.2025.06.003 Abstract （366）      PDF（pc） （547KB）（109）       Knowledge map    Save A new class of non-singular H-matrices,strict α1-Nekrasov  matrices,is defined,and several methods for determining non-singular H-matrices are provided.By using the method of matrix splitting,combined with the estimation formula for the infinity norm of the inverse of  Nekrasov matrix and properties of inequalities,an upper bound estimation for the infinity norm of the inverse of strictly α1-Nekrasov  matrix is provided. Reference | Related Articles | Metrics | Comments（0）

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Progress and Prospects of Bamboo Slips Digitization:A Preliminary Exploration of Digital-Intelligent Development of Liye Qin Slips FU Zhuosong, LIAO Bolin, LI Jianfeng, LONG Guangyu Journal of Jishou University(Natural Sciences Edition)    2025, 46 (6): 83-89.   DOI: 10.13438/j.cnki.jdzk.2025.06.011 Abstract （364）      PDF（pc） （702KB）（529）       Knowledge map    Save The development of digital-intelligent technologies for bamboo slip processing has led to systematic advances in key methods such as image enhancement,image segmentation,character recognition,and image restoration.These techniques have been summarized in terms of their application strategies and performance in handling bamboo slip images.In light of the archaeological context and preservation conditions for the Liye Qin slips,major challenges have been identified,including the lack of standardized protocols,low image quality,and difficulties in recognizing diverse character forms.A construction framework has been proposed,centered on standardized data modeling,intelligent image processing,in-depth character recognition,and damaged-text restoration.Furthermore,interdisciplinary collaboration among archaeology,computing,and paleography is recommended to build a sustainable and evolvable technological system for bamboo slip digitization,facilitating the refined organization and scholarly use of large-scale historical documentary resources. Reference | Related Articles | Metrics | Comments（0）

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Properties of Ellipsoids and Rotational Ellipsoids GAO Wen, CAI Xuepeng, LIU Xue'er, PANG Yue Journal of Jishou University(Natural Sciences Edition)    2026, 47 (1): 13-16.   DOI: 10.13438/j.cnki.jdzk.2026.01.003 Abstract （361）      PDF（pc） （419KB）（117）       Knowledge map    Save In this paper,the trajectory equations of ellipsoid and rotational ellipsoid are described by analyzing the characteristics of the trajectories of the points on these two ellipsoid surfaces. Reference | Related Articles | Metrics | Comments（0）

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Permanence of a Two-Species Discrete Competition Model with Michaelis-Menten Type Capture in the First Species LIU Yijian, CHEN Fengde, LI Qianqian Journal of Jishou University(Natural Sciences Edition)    2025, 46 (4): 11-18.   DOI: 10.13438/j.cnki.jdzk.2025.04.003 Abstract （350）      PDF（pc） （643KB）（124）       Knowledge map    Save In this paper,a two-species discrete competition model with Michaelis-Menten type harvesting in the first species was proposed and studied.A set of sufficient conditions to ensure the permanence of the model are obtained. Reference | Related Articles | Metrics | Comments（0）

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Characteristics of the Nesting Sites and Breeding Behaviors of Myophonus caeruleus in Western Hunan LIU Yi, WU Tao, XIONG Yixin, CHEN Tianyu, XUE Fengling, NING Luoyang, LIU Zhixiao Journal of Jishou University(Natural Sciences Edition)    2026, 47 (1): 67-77.   DOI: 10.13438/j.cnki.jdzk.2026.01.010 Abstract （348）      PDF（pc） （3616KB）（150）       Knowledge map    Save Myophonus caeruleus is a medium-sized passerine bird of important ecological,scientific and social value,with unique cave-dwelling habits in Xiangxi Prefecture,Hunan Province.A combination of field investigation and portable automatic infrared video recording was employed to explore the main factors influencing the nest-site selection and characteristics of breeding behavior of this species.The major results are as follows:The main factors influencing the choice of nest sites of Myophonus caeruleus are spatial location and microclimatic environment.The nests are bowl-shaped,composed of four layers,and the dominant nest materials included mosses (50%),rhizomes (30%) and leaves (10%) of herbage and lianas.Both female and male birds participate in nesting,and the nesting behaviors primarily include nest-building (68.5%),nest-tidying (13.9%),warning (8.4%) and inspecting (5.7%).Incubation is mainly carried out by the female bird,and the behaviors during the incubation mainly include preening (38.5%),egg-turning (29.3%),nest-sitting (13.2%),inspecting (9.2%) and warning (5.4%).Both the male and female birds raise the chicks together,and the behaviors during the breeding chiefly covere nestling-feeding (38.9%),feces removal (15.8%),nestling-turning (11.6%),brooding (10.9%),preening  (9.3%),inspecting (5.3%),and warning (4.6%). Reference | Related Articles | Metrics | Comments（0）

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Development of Xiangxi Vine Tea Extract Lozenges NI Dexin, LIU Jiawang, YIN Guang, HUANG Hongjun, ZOU Jingyi, FENG Qiuju Journal of Jishou University(Natural Sciences Edition)    2025, 46 (5): 82-89.   DOI: 10.13438/j.cnki.jdzk.2025.05.012 Abstract （342）      PDF（pc） （1647KB）（261）       Knowledge map    Save Taking the vine tea from Xiangxi as the experimental raw material,we have optimized the extraction process of vine tea by single-factor experiments.The antibacterial activity and antioxidant activity of the vine tea extract were analyzed.The ratio of excipients in the prescription was further optimized to develop a vine tea extract lozenge.The quality of the product was tested to determine whether it met the relevant tablet quality standards.The results showed that the optimal extraction conditions were a solid-liquid ratio of 1∶40 (g∶mL),an ethanol volume fraction of 70%,a reflux time of 90 min,and a crystallization temperature of 10 ℃.The vine tea extract had a good inhibitory effect on Escherichia coli,with the maximum inhibition zone diameter being 15.1 mm.The vine tea extract had good scavenging abilities for hydroxyl radicals,superoxide anion radicals,and DPPH radicals,and also had a good reducing ability.Its radical scavenging level was much higher than that of citric acid and close to that of ascorbic acid.The preparation of lozenges employed a mixture of excipients consisting of 0.50 g dextrin,2.2 g starch,0.50 g sucrose,and 0.002 4 g magnesium stearate.The disintegration time of the finished product was 15 min,and the hardness,friability,appearance,and weight variation of the tablets all met the tablet quality standards of the Chinese Pharmacopoeia. Reference | Related Articles | Metrics | Comments（0）

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Bioinformatics Analysis of AQP Gene Family in Zea mays ZHANG Jun, LI Xuye, WANG Rui, GUO Wenkai, YOU Haiyang Journal of Jishou University(Natural Sciences Edition)    2025, 46 (6): 57-66.   DOI: 10.13438/j.cnki.jdzk.2025.06.008 Abstract （341）      PDF（pc） （12656KB）（150）       Knowledge map    Save To elucidate the biological functions of the aquaporin (AQP) gene family in the growth and development of Zea mays,bioinformatics methods were used to identify and analyze the members of AQP gene family in Zea mays.The results showed that there were 28 members in the maize AQP gene family;the AQP sequences of the members contained 211 to 302 amino acids and exhibit high stability;the AQP gene family in maize is primarily divided into four subfamilies:PIP,NIP,TIP,and SIP,containing 8,7,10,and 3 genes,respectively;the spatial structures of proteins in each subgroup are similar and highly conserved. Reference | Related Articles | Metrics | Comments（0）

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Efficacy and Adverse Reactions of Microwave Ablation for Non-Small Cell Lung Cancer#br# REN Yuanmeng, LU Liqun, XU Jinhong, LEI Mingsheng, SHANG Xi Journal of Jishou University(Natural Sciences Edition)    2025, 46 (5): 69-76.   DOI: 10.13438/j.cnki.jdzk.2025.05.010 Abstract （334）      PDF（pc） （982KB）（123）       Knowledge map    Save Through a search of Chinese and English databases,publicly published articles in domestic and international journals on microwave ablation for the treatment of non-small cell lung cancer were identified.A total of 19 articles were included.A Meta-analysis was conducted to evaluate the efficacy and adverse reactions of microwave ablation in the treatment of non-small cell lung cancer as reported in these articles.Trial sequential analysis was then employed to verify the stability of the results in the literature and to calculate the sample size required for consistent results.The results indicated that,compared with radiotherapy and chemotherapy alone,microwave ablation combined with radiotherapy and chemotherapy significantly improved the complete response rate (P<0.000 01),partial response rate (P=0.01),and overall response rate (P<0.000 01) of patients,without significantly increasing the incidence of adverse reactions such as myelosuppression (P=0.13),gastrointestinal reactions (P=0.79),and pneumothorax (P=0.43).Regarding the complete response rate and overall response rate,the current research results are consistent.However,for the partial response rate,myelosuppression,gastrointestinal reactions,and pneumothorax,the current research results are inconsistent,and further verification with a larger sample size is still required. Reference | Related Articles | Metrics | Comments（0）

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Current Situation of and Countermeasures for Cultivating Teenage Sports Reserve Talents in Shangrao City YANG Wenshu Journal of Jishou University(Natural Sciences Edition)    2025, 46 (4): 88-95.   DOI: 10.13438/j.cnki.jdzk.2025.04.013 Abstract （330）      PDF（pc） （611KB）（126）       Knowledge map    Save In order to improve the quality of teenage sports reserve talent cultivation in Shangrao City,an investigation was conducted on the current situation of teenage sports reserve talent cultivation in Shangrao City.The survey showed that there were problems in the cultivation of teenage sports reserve talents in Shangrao City,such as incomplete selection mechanism and training system,insufficient financial investment,prominent contradiction between learning and training,and incomplete linkage mechanism for cross subject collaborative training.The cultivation system can be improved from four aspects:to optimize the selection mechanism and training efficiency;to expand the effective supply of resources needed for talent cultivation;to safeguard the legitimate rights and interests of the teenage talents in education;and to promote diversified and collaborative cultivation. Reference | Related Articles | Metrics | Comments（0）

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Existence of Solutions for a Class of Third-Order Ordinary Differential Equations Boundary Value Problems on an Infinite Interval SONG Guoxin, GOU Haide, LIU Jingfang Journal of Jishou University(Natural Sciences Edition)    2025, 46 (4): 19-27.   DOI: 10.13438/j.cnki.jdzk.2025.04.004 Abstract （328）      PDF（pc） （533KB）（183）       Knowledge map    Save This paper investigates the existence of solutions for a class of third-order ordinary differential equation boundary value problems on an infinite interval.Firstly,the boundary value problems is equivalently transformed into the existence problems of fixed points for a class of integral operators in a suitable Banach space.Then,the complete continuity of the integral operators is proved by using the generalized Arzelá-Ascoli theorem.Finally,the Leray-Schauder principle are employed to establish an existence theorem of the solutions for this kind of boundary value problems. Reference | Related Articles | Metrics | Comments（0）

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Derivation of the General Formula of Higher Order Linear Recursive Sequences by Using Matrix Methods FEI Mingbing, ZHUO Zepeng Journal of Jishou University(Natural Sciences Edition)    2025, 46 (5): 1-4.   DOI: 10.13438/j.cnki.jdzk.2025.05.001 Abstract （317）      PDF（pc） （475KB）（104）       Knowledge map    Save By introducing column vectors,the problem of finding the general term of a high-order linear recursive sequence is transformed into a problem of finding the power of a square matrix,and then the general term of a high-order linear recursive sequence is obtained by using the theory of Jordan's canonical form with the theory of matrix representation between vectors. Reference | Related Articles | Metrics | Comments（0）

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Survey on Bird Diversity in Hunan Gaowangjie National Nature Reserve TAN Yechen, HUANG Jie, MAO Jing, WANG Jing, XIONG Shuhong, ZHANG Youxiang, WU Tao, HUANG Xinglong, ZHANG Ziliang, KE Mingjun Journal of Jishou University(Natural Sciences Edition)    2025, 46 (5): 90-100.   DOI: 10.13438/j.cnki.jdzk.2025.05.013 Abstract （317）      PDF（pc） （882KB）（1044）       Knowledge map    Save To understand the avian species diversity and distribution in the Gaowangjie National Nature Reserve in Hunan,a systematic survey of bird diversity was conducted using line transect surveys and infrared camera trapping from 2022 to 2023.The results showed that a total of 145 bird species were recorded,belonging to 15 orders and 49 families.Passeriformes dominated with 89 species across 31 families,while non-Passeriformes accounted for 56 species across 18 families.Two species of nationally protected Class I wild birds were recorded:Scaly-sided Merganser (Mergus squamatus) and Elliot's Pheasant (Syrmaticus ellioti),along with 22 species of nationally protected Class Ⅱ wild birds.According to the China Red List of Vertebrates,16 species were listed as threatened (endangered,vulnerable,or near-threatened),with an additional 61 bird species designated as provincially protected in Hunan.In terms of zoogeographical regions,oriental species predominated (71 species),and resident birds were the primary residency type (90 species).The woodland habitat had the highest species diversity index (3.47),while aquatic habitats had the lowest (1.95).Significant differences in bird species diversity were observed among different habitats,but no significant differences were found between functional zones.Based on these findings,the following conservation recommendations are proposed to strengthen wildlife protection awareness campaigns and strictly prohibit illegal hunting and habitat destruction;Establish an ecological compensation mechanism to provide economic incentives for affected villagers to encourage conservation efforts. Reference | Related Articles | Metrics | Comments（0）

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Spontaneous Emission Characteristics of Quantum Dots Near Non-Concentric Nanoshells ZHANG Shuangshuang, SHAN Xinyu, HUANG Yonggang Journal of Jishou University(Natural Sciences Edition)    2025, 46 (4): 61-67.   DOI: 10.13438/j.cnki.jdzk.2025.04.009 Abstract （314）      PDF（pc） （951KB）（120）       Knowledge map    Save To investigate the spontaneous emission characteristics of quantum dots near non-concentric sodium-gold (Na,Au) nanoshells,the local response approximation (LRAM),hard-wall hydrodynamic model (HDM),and quantum hydrodynamic model (QHDM) were employed to analyze the effects of core displacement and size scaling on the spontaneous emission intensity.The results demonstrate that as the core shifts from the bottom to the top of the shell,the spontaneous emission intensity decreases,accompanied by a resonance peak shift that first blueshifts and then redshifts.Additionally,increasing the size of the non-concentric nanoshell leads to a reduction in the quantum dot's spontaneous emission intensity. Reference | Related Articles | Metrics | Comments（0）

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Valley-Locked Edge States and Corner States in Dendritic Phonon Crystals#br# LIU Shuqi, LIU Yuanli, KONG Peng, ZHAO Heping Journal of Jishou University(Natural Sciences Edition)    2025, 46 (6): 35-41.   DOI: 10.13438/j.cnki.jdzk.2025.06.005 Abstract （310）      PDF（pc） （13575KB）（156）       Knowledge map    Save To study the acoustic wave propagation characteristics of two-dimensional higher-order topological insulators,a third-order dendritic valley phononic crystal structure with C3v symmetry was designed.By rotating the scatterers to break spatial symmetry,the valley Hall edge states were successfully realized.On this basis,a Zigzag interface topological waveguide and a triangular corner structure were constructed,and their acoustic wave transmission behaviors were analyzed.The results show that in the topological waveguide,the acoustic waves are effectively localized at the Zigzag interface;in the triangular corner structure,corner states with valley switchability and selectivity appear. Reference | Related Articles | Metrics | Comments（0）

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Several New Criteria for Block H-Matrices HE Yongfang, MO Hongmin, YI Hong Journal of Jishou University(Natural Sciences Edition)    2026, 47 (1): 17-24.   DOI: 10.13438/j.cnki.jdzk.2026.01.004 Abstract （300）      PDF（pc） （526KB）（111）       Knowledge map    Save A new class of block H-matrices—block strictly α-locally double  diagonally dominant matrices is defined,and three new criteria for the block H-matrices are given. Reference | Related Articles | Metrics | Comments（0）

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Quantum Effects on the Absorption Spectrum of Double Concentric Na Nanoshells ZHANG Mingfu, SHAN Xinyu, HUANG Yonggang Journal of Jishou University(Natural Sciences Edition)    2025, 46 (4): 52-60.   DOI: 10.13438/j.cnki.jdzk.2025.04.008 Abstract （300）      PDF（pc） （3686KB）（115）       Knowledge map    Save To investigate the quantum effects on the absorption spectra of double concentric sodium nanoshells and compare them with the local response approximation model (LRAM) and hard-wall hydrodynamic model (HDM),the quantum hydrodynamic model (QHDM) was employed based on coupled-mode theory to analyze the coupling characteristics of resonance modes on the inner and outer surfaces of a single shell,as well as the surface plasmon resonance properties of double concentric sodium nanoshells.The results indicate that,for a single-shell structure,LRAM predicts that as the inner cavity radius increases,the low-energy mode redshifts while the high-energy mode blueshifts;when the shell thickness increases,the low-energy mode blueshifts while the high-energy mode redshifts.In the case of the double concentric sodium nanosphere shell structure,when the spacing between shells is large,the two high-energy modes predicted by the HDM model exhibit a significant blueshift compared to LRAM predictions,whereas the same modes predicted by the QHDM model show a substantial redshift.Furthermore,when the outer shell thickness is large,the two low-energy modes predicted by both HDM and QHDM exhibit a slight blueshift relative to LRAM predictions,while the two high-energy modes predicted by HDM show a significant blueshift and those predicted by QHDM demonstrate a significant redshift. Reference | Related Articles | Metrics | Comments（0）

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Journal of Jishou University(Natural Sciences Edition)    2025, 46 (4): 96-96.   Abstract （285）      PDF（pc） （144KB）（124）       Knowledge map    Save Related Articles | Metrics | Comments（0）

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Valley Phenomena and Corner State Realization in Bilayer Hexagonal Phononic Crystals LIU Fang, WANG Jiahao, KONG Peng, ZHAO Heping, DENG Ke Journal of Jishou University(Natural Sciences Edition)    2025, 46 (5): 45-52.   DOI: 10.13438/j.cnki.jdzk.2025.05.007 Abstract （279）      PDF（pc） （25524KB）（149）       Knowledge map    Save Benefiting from valley-selective excitation and suppressed acoustic backscattering in valley topological insulators,we designed a mirror-symmetric bilayer hexagonal phononic crystal.Breaking spatial symmetry by adjusting the scatterers' orientation induces valley states.Numerical simulations show different valley topological phases emerge under varying scatterer angles,enabling selective path transport.Furthermore,constructing a triangular supercell with two valley topological phases in the bilayer hexagonal phononic crystal yields two sets of triangular corner states. Reference | Related Articles | Metrics | Comments（0）

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Construction of Graceful Labeling of Two Types of Graphs TANG Baoxiang, REN Han Journal of Jishou University(Natural Sciences Edition)    2025, 46 (4): 1-4.   DOI: 10.13438/j.cnki.jdzk.2025.04.001 Abstract （276）      PDF（pc） （798KB）（115）       Knowledge map    Save Through the constructive approach,we have successfully assigned graceful labels to two classes of graphs:K2,n,n and K3∨K3,n-e,thus confirming their inclusion in the category of graceful graphs. Reference | Related Articles | Metrics | Comments（0）

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Effects of Antioxidant Enzyme Activities on Waterlogging Tolerance of Actinidia valvata Under Waterlogging Stress XU Lingling, ZHANG Fanjing, LUO Qing, XU Yanling, GAO Jianyou, TIAN Xiaobo, ZHA Manrong, LIU Shibiao Journal of Jishou University(Natural Sciences Edition)    2025, 46 (6): 67-74.   DOI: 10.13438/j.cnki.jdzk.2025.06.009 Abstract （272）      PDF（pc） （5065KB）（195）       Knowledge map    Save The root physiological changes of two kiwifruit varieties,Actinidia valvata "Shuixiu"  and Actinidia chinensis "Hongyang",were investigated under artificial waterlogging treatments of 6 h (early stage),24 h (middle stage),and 120 h (late stage).The results showed that in the early stage of waterlogging,the malondialdehyde (MDA) molar concentration in the roots of Actinidia valvata "Shuixiu" was relatively high,but then remained at a low level.In the early and middle stages of waterlogging,the molar concentration of superoxide anion (O-2) in the roots of Actinidia valvata "Shuixiu" was relatively low.In the early and middle stages of waterlogging,the root activity of Actinidia valvata "Shuixiu" was relatively strong.In the early,middle,and late stages of waterlogging,the superoxide dismutase (SOD) activity in the roots of Actinidia valvata "Shuixiu" remained at a relatively high level.With the extension of waterlogging stress time,the catalase (CAT) activity in the roots of Actinidia valvata "Shuixiu" first increased and then decreased,while the peroxidase (POD) activity first decreased and then increased.The activities of the three antioxidant enzymes in the roots of the Actinidia valvata "Shuixiu" waterlogging treatment group were always significantly higher than those of the control group,and were also higher than those of the Actinidia chinensis "Hongyang" waterlogging treatment group overall.Actinidia valvata "Shuixiu" can rapidly respond to waterlogging stress and activate the antioxidant defense system in time to alleviate the oxidative damage caused by waterlogging stress,showing strong waterlogging tolerance.The above indicators of Actinidia chinensis "Hongyang" were basically opposite to those of Actinidia valvata "Shuixiu",showing weak waterlogging tolerance. Reference | Related Articles | Metrics | Comments（0）

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An Improved Multi-Strategy Sparrow Search Algorithm Based on Iterative Chaotic Mapping YU Cunwei, ZHANG Xianyu, LIU Xinyu Journal of Jishou University(Natural Sciences Edition)    2025, 46 (5): 37-44.   DOI: 10.13438/j.cnki.jdzk.2025.05.006 Abstract （267）      PDF（pc） （855KB）（106）       Knowledge map    Save An improved multi-strategy sparrow search algorithm based on iterative chaotic mapping(IMSSA-ICM) is designed to address the problems of low accuracy and susceptibility to local optima in sparrow search algorithm.In the sparrow search algorithm,iterative chaotic mapping is used to initialize the sparrow population,and elite opposition-based learning and Levy flight strategy combined with roulette wheel selection mechanism are introduced to perturb the sparrow update position to optimize the traditional sparrow search algorithm's insufficient search accuracy and susceptibility to local extremum problems.On 12 benchmark test functions,IMSSA-ICM is compared with 5 classic swarm intelligence optimization algorithms.Simulation results show that IMSSA-ICM outperform the other 5 algorithms in terms of solving accuracy and escaping local optima. Reference | Related Articles | Metrics | Comments（0）

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Lattice Boltzmann Method for Solving the Generalized BBM-KdV Equation ZHAO Mengmeng, DAI Houping, DONG Yaru Journal of Jishou University(Natural Sciences Edition)    2025, 46 (6): 24-34.   DOI: 10.13438/j.cnki.jdzk.2025.06.004 Abstract （261）      PDF（pc） （1305KB）（101）       Knowledge map    Save For the generalized BBM-KdV equation with mixed derivative terms,based on the lattice Boltzmann method,by using Taylor expansion and Chapman-Enskog multiscale expansion technique,the local equilibrium distribution functions and correction functions in each direction of the one-dimensional and two-dimensional generalized BBM-KdV equations are obtained,and then the one-dimensional and two-dimensional generalized BBM-KdV equations are restored.Under the condition of monotonicity,the stability of the iterative format of the lattice Boltzmann method is proved. Reference | Related Articles | Metrics | Comments（0）

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Convergence Analysis of Numerical Solution of Delayed Interest Rate Model with Poisson Jumps FENG Denghong, LI Zhimin Journal of Jishou University(Natural Sciences Edition)    2025, 46 (5): 10-18.   DOI: 10.13438/j.cnki.jdzk.2025.05.003 Abstract （247）      PDF（pc） （566KB）（130）       Knowledge map    Save An Ait-Sahalia interest rate model is constructed with delayed volatility driven by Poisson jumps,and its dynamic properties are investigated through a modified truncated Euler-Maruyama (EM) method.Under the theoretical framework of local Lipschitz conditions and Khasminskii-type conditions,it is proved that the numerical solution generated by the modified truncated EM method converges strongly to the true solution of the model. Reference | Related Articles | Metrics | Comments（0）

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Bayesian Analysis of Kumaraswamy Distribution Parameters Under a Kind of Symmetric Loss  ZHANG Xuecheng, XU Bao Journal of Jishou University(Natural Sciences Edition)    2026, 47 (1): 29-40.   DOI: 10.13438/j.cnki.jdzk.2026.01.006 Abstract （245）      PDF（pc） （856KB）（127）       Knowledge map    Save Under the weighted p,q symmetric entropy loss function,the Bayesian estimation method is used to estimate the Kumaraswamy distribution parameters,and the general and exact forms of the Bayesian estimation of the parameters are obtained,which proves the acceptability and minimum maximum of the obtained Bayesian estimation.The multi-level Bayesian estimation,E-Bayes estimation and knife-cut Bayesian estimation of the parameters are given.The numerical simulation of Bayes,E-Bayes and knife-cut Bayes estimation of Kumaraswamy distribution parameters is carried out by using R software combined with Metropolis algorithm.The results show that the Bayes estimation under the Jeffreys priors is more accurate than that under the conjugate prior distribution;the estimation properties under the same prior distribution can be better by using the knife cutting method;and the application of E-Bayes estimation can reduce the influence of hyperparameters on the simulation by selecting appropriate constants. Reference | Related Articles | Metrics | Comments（0）

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Information Fusion of Fuzzy Partial Order Relations on Continuous Information Sets XIA Xiuyun, TIAN Hao Journal of Jishou University(Natural Sciences Edition)    2025, 46 (6): 7-14.   DOI: 10.13438/j.cnki.jdzk.2025.06.002 Abstract （239）      PDF（pc） （525KB）（96）       Knowledge map    Save Firstly,the basic concepts of evaluation decision on the classical fusion.Then,based on the definition and related properties of fuzzy partial order information fusion in the context of information system,different fuzzy partial order models have been established for evaluating decisions.Finally,information fusions for fuzzy partial order relationships on continuous information sets are discussed. Reference | Related Articles | Metrics | Comments（0）

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Ten New Recorded Species of Seed Plants in Hubei Province ZHANG Yujie, LI Xinran, SHI Guo, ZHANG Daigui, ZHANG Menghua, ZHANG Li Journal of Jishou University(Natural Sciences Edition)    2025, 46 (6): 75-82.   DOI: 10.13438/j.cnki.jdzk.2025.06.010 Abstract （231）      PDF（pc） （33523KB）（90）       Knowledge map    Save Through field surveys and specimen examinations,ten seed plants from Hubei province are confirmed as new records,which belong to ten genera of ten families,including Arisaema hunanense Hand.-Mazz.,Chrysosplenium nepalense D. Don,Ranunculus pseudopygmaeus Hand.-Mazz.,Vicia sepium L.,Ranunculus sinovaginatus W. T. Wang,Cardamine tangutorum O. E. Schulz,Impatiens oxyanthera Hook. f.,Meehania zheminensis A.Takano,Pan Li & G.H.Xia,Rubus rubrisetulosus Cardot and Symplocos groffii Merr..All voucher specimens are deposited in the Kunming Institute of Botany,Chinese Academy of Sciences. Reference | Related Articles | Metrics | Comments（0）

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Spatial-Temporal Characteristics of and Influencing Factors for Online Attention on High-Level Scenic Spots in the Western Hunan Region LIU Shuiliang, HUANG Chao, DONG Xiaotong Journal of Jishou University(Natural Sciences Edition)    2025, 46 (6): 90-96.   DOI: 10.13438/j.cnki.jdzk.2025.06.012 Abstract （224）      PDF（pc） （639KB）（245）       Knowledge map    Save Based on the Baidu Index from 2017 to 2023,this study analyzes the spatio-temporal characteristics of and influencing factors for online attention on high-level scenic spots in Western Hunan region.The results show that:(1) The online attention in the past seven years has first declined and then risen;there are significant seasonal differences,with higher attention in summer and autumn;attention is higher during holidays and there is a clear precursor effect.(2) There is a large spatial difference in online attention,with a significant primacy effect,showing a relatively scattered distribution but a trend of concentrated development,with obvious distance effect and local consumption characteristics.(3) The main factors affecting the online attention include the resources,climate,the distance between the scenic spots and the tourist source areas,holiday systems,economic factors in the tourist source areas,and changes in the external tourism environment. Reference | Related Articles | Metrics | Comments（0）