Abstract:Multi-path protection can effectively enhance the service survivability of light-path requests by transmitting data through multiple disjoint paths.This approach ensures that even if one path fails,the service remains uninterrupted.This paper focuses on the survivability-aware routing,modulation,and spectrum assignment(RMSA)problem in elastic optical network(EON)based on deep reinforcement learning(DRL)for advanced reservation(AR)service requests,where AR requests not only allow for im-mediate allocation of network resources upon arrival but also enable scheduling at a future time,character-ized by advanced reservation and waiting features.To efficiently determine the multi-path routing,modu-lation format,spectrum allocation,and scheduling time for AR service requests,this paper proposes a dy-namic resource allocation algorithm based on DRL.Simulation results on a 14-node network topology demonstrate that the proposed DRL algorithm reduces the blocking probability by as much as 31.9%at 300 Erlangs traffic load.

Abstract:Due to the broadcast and open nature of channels in wireless communication systems,the issue of protecting the privacy and security of wireless communication users faces great challenges.Covert com-munication can better protect the hidden information by hiding the transmission process on the transmis-sion medium to prevent the third party from detecting the communication behavior.However the mobile communication environment is complex and changeable,and the secure transmission performance is affect-ed by the complex and changeable environment,which makes it difficult to make real-time accurate predic-tion.Therefore,this paper proposes an intelligent prediction algorithm for secure transmission perform-ance of covert communication system based on GTM-Net neural network.First,a covert communication system assisted by Intelligent Reconfigurable Surface and Artificial Noise is established under N-Nakagami channel,and the secure transmission performance is analyzed by the link signal-to-noise ratio.In order to predict the secure transmission performance in real time,the GTM-Net model is designed in this paper.The model adopts a two-branch structure,one branch is a two-layer sampling-based Graph Convolutional Network for local random sampling,and a layer of Transformer is added after each layer of GraphSAGE for global feature extraction,and the other branch is a feature interaction through MLP-Mixer network.The experimental results show that,compared to other algorithms,the GTM-Net algorithm has better prediction performance.In terms of prediction accuracy,GTM-Net improves 85.36%over Graph Convo-lutional Network.

Abstract:To enhance the performance of terahertz detectors,this study designed and fabricated a tera-hertz detection device based on an topological metasurface and an MnBi2Te4 thin film.The L-shaped subwavelength microstructures were fabricated using 3D printing technology,and the MnBi2Te4 thin layer was deposited via magnetron sputtering.By leveraging the topological surface state properties of MnBi2Te4 and the localized surface plasmon resonance effect of the L-shaped structure,strong localization of tera-hertz waves and efficient energy coupling were achieved.The device's performance in the 0.1 THz frequen-cy band was characterized experimentally:without external field,the responsivity(RA)reached 1.72 A/W,the noise-equivalent power(NEP)was as low as 8.23 pW/Hz1/2,and the detectivity(D*)peaked at 5.43×109 cm·Hz1/2/W.After applying an external magnetic field(0.145 mT)and laser(50 mW),the RA was maximally increased to 3.01 A/W,the NEP was reduced to 5.69 pW/Hz1/2,and the D* reached 7.85×109 cm·Hz1/2/W.The research indicates that the L-shaped topological structure and the enhancement effects of the magnetic/optical field can significantly optimize the photoelectric conversion efficiency and noise suppression capability of the detector,providing a new solution for high-performance terahertz detec-tion.

Abstract:The effect of Ganoderma lucidum fermentation broth on the quality characteristics of set yogurt was investigated.Using liquid culture experiments of Ganoderma lucidum and testing methods for the physicochemical properties and sensory quality indicators of yogurt,the study investigated the effects of adding 0%to 20%Ganoderma lucidum fermentation broth on the physicochemical properties and sensory quality of set yogurt.When the addition amount of Ganoderma lucidum fermentation broth was 10%,the yogurt exhibited the highest levels of antioxidant activity,acidity,water holding capacity,and sensory e-valuation.Compared with the control group,the yogurt's antioxidant activity increased by 21.19%,wa-ter holding capacity increased by 10.07%(p<0.05),and acidity significantly increased(p<0.05).The sensory scores were excellent in terms of color,taste,and texture.Additionally,the elasticity index and cohesiveness indicators also showed significant peaks(p<0.05).Adding an appropriate amount of Ganoderma lucidum fermentation broth is beneficial for improving the physicochemical properties and sen-sory quality of yogurt,providing guidance for the development of functional yogurt.

Abstract:With the rapid development of wireless communication technology,electromagnetic pollution is continuously intensifying.Therefore,it is of great significance to study composite absorbing materials with excellent performance.Molybdenum disulfide(MoS2),with its two-dimensional nanolayered struc-ture and large specific surface area,is a dielectric loss material;while triiron tetroxide(Fe3O4)exhibits magnetic loss.The combination of these two results in superior absorbing performance.In this study,so-dium molybdate and thioacetamide were used as molybdenum and sulfur sources,respectively,and ferric chloride and ferrous sulfate were served as iron sources.MoS2@Fe3O4 composite materials were prepared using either one-step or stepwise hydrothermal methods.The effects of different hydrothermal pathways on the phase structure,microstructure,and absorbing performance of the products were investigated.The results demonstrated that the absorbing performance of MoS2@Fe3O4 composite materials prepared by different hydrothermal pathways varied significantly.When the thickness was 2.8 mm,the minimum reflection loss of MoS2@Fe3O4 composites prepared by one-step and stepwise hydrothermal methods was-39.72 and-43.18 dB,respectively;the effective absorption bandwidths were 7.28 and 2.08 GHz,respectively.

Abstract:This study focuses on the SX325 sliding-headstock CNC lathe,with systematic analysis conduc-ted on the ANSYS Workbench platform.A finite element model of the machine was established,and cut-ting forces under turning,milling,and drilling conditions were calculated.Static simulation was per-formed to obtain contour plots of displacement and stress distribution for the entire machine under three typical machining states.Modal analysis identified the first six natural frequencies and corresponding dom-inant mode shapes of the machine.By integrating static and dynamic characteristic analysis,weak struc-tural areas were identified,including the tool post,the Y1-axis slide,and the X2-axis slide.Structural op-timization of the X2 slide was carried out using response surface methodology,resulting in a 5.27%reduc-tion in mass,a 0.96%decrease in maximum deformation,a 6.13%reduction in maximum stress,and a 3.12%increase in the first natural frequency.Furthermore,three stiffening ribs were added to key areas of the tool post—specifically,at load transfer paths and vibration-sensitive locations—to enhance its de-sign.This modification reduced maximum deformation by 6.04%,lowered maximum stress by 1.69%,and increased the first natural frequency by 2.83%.

Abstract:In response to the uncertain characteristics in the process of infectious disease transmission,this paper constructs a class of single-population infectious disease dynamic models with uncertain transmission perturbations based on the classical infectious disease dynamic framework.The model regards infectious disease transmission as a dynamic system affected by uncertain factors,where the infection rate is influ-enced by factors such as population mobility,prevention and control measures,and environmental chan-ges.Uncertain perturbation factors can truly reflect the dynamic behavior during the transmission process.Based on this model,the paper further solves the first hitting time distribution,belief reliability function,and belief reliability life of the dynamic system model,revealing the risk evolution mechanism of infectious disease transmission dynamics under uncertain perturbations.On this basis,the paper conducts a sensitivi-ty analysis on the key parameters in the credibility reliability function and credibility reliability life.By plotting the curves of the impact of parameter changes on system reliability,the dynamic relationships be-tween each parameter and the system reliability indicators are intuitively revealed.

Abstract:Multi-agent cooperative navigation in dense crowds remains challenging due to complex interac-tion patterns and the difficulty of modeling social norms.To enhance collision avoidance efficiency and so-cial adaptability in such environments,this paper proposes SFMRVO-DRL,a multi-agent navigation framework that integrates Reciprocal Velocity Obstacles(RVO)with the Social Force Model(SFM)into a unified hybrid social interaction model.The framework adaptively balances the two components based on collision risk,enabling both efficient collision avoidance and naturalistic motion.Building on this hybrid interaction model,we design a decision architecture incorporating a graph attention mechanism to capture dynamic inter-agent relationships,and introduce a multi-objective reward function grounded in right-hand passing conventions to improve social compliance and policy stability.The proposed method employs MAPPO for policy optimization under a centralized-training and decentralized-execution paradigm.Experi-mental results in a canonical circular crowd-interaction scenario demonstrate that our approach significantly outperforms GA3C-CADRL,NH-ORCA,and HeR-DRL in terms of success rate,navigation time,and speed.This study highlights the effectiveness of hybrid RVO-SFM interaction modeling,attention-based social perception,and socially normative multi-objective reinforcement learning in advancing multi-agent navigation performance in complex crowd environments.

Abstract:Studying crop stress behavior at the cellular scale in a non-invasive manner is crucial for under-standing the molecular mechanisms of crop stress responses and adversity regulation to abiotic stress.Flu-orescent probe technology is widely used for in situ imaging of characteristic substances in crop stress due to its high sensitivity,unique spatiotemporal resolution,real-time imaging,and non-invasive advantages.This review outlines the application progress of in situ fluorescent probes in crop stress/stress research in detail.Finally,the development trends of fluorescent probes in this field are anticipated.

Abstract:Photocatalytic water splitting for hydrogen production offers a sustainable approach for the effi-cient conversion of solar energy into hydrogen energy.Graphitic carbon nitride(g-C3N4)has emerged as a promising candidate material in this field due to its unique electronic structure,excellent chemical stabili-ty,and good environmental compatibility.However,its inherent limitations,such as a light absorption range mainly confined to the short-wavelength visible region,high recombination rate of photogenerated charge carriers,and insufficient surface active sites,severely restrict further enhancement of its catalytic performance.To overcome these bottlenecks,various modification strategies have been developed:het-eroatom doping can modulate the electronic structure and broaden the light absorption range;surface func-tionalization can enrich active sites and optimize interfacial reaction kinetics;constructing heterojunctions effectively promotes charge carrier separation;morphology engineering(e.g.,fabricating hollow nanoves-icles or two-dimensional nanosheets)can increase specific surface area and shorten charge transport dis-tances;and defect engineering can regulate charge distribution and migration behavior.Through synergis-tic effects,these strategies significantly improve the photocatalytic hydrogen evolution activity and stabili-ty of g-C3N4.Future research should further explore the coupling mechanisms of multi-component modifi-cation techniques to advance its practical application in large-scale hydrogen production.

Abstract:In this study,we investigated and analyzed donkey diseases and antibiotic use in a large-scale donkey farm in 2021 and 2022.The main cases of diseases in this farm are concentrated in donkeys under the age of one during the summer.It was found that 55.15％of all sick donkeys treated with medication in 2021 were treated with antibiotics or partially treated with antibiotics,while this figure was 95.63％in 2022,indicating that antibiotics were the main therapeutic medication used on this donkey farm.The anti-biotics used more frequently in this donkey farm were cephalosporins,penicillin,enrofloxacin and neomy-cin.In 2021 and 2022,the higher percentage of sick donkeys in this donkey farm were enteritis,pneumo-nia,cold,glandular disease and arthritis,which accounted for 83.03％ and 86.30％ of the number of sick donkeys in 2021 and 2022,respectively.In the future,we should focus on strengthening the pharmacoki-netic and pharmacodynamic study of antimicrobial drugs in donkeys,promoting precise dosing technology,and improving feeding management programs.

Abstract:Minerals are important for body tissues which play an important role in the physiological func-tion of human tissues.As a new type of mineral supplement,foodborne polypeptide metal ion chelate has the advantages of high biological titer,fast absorption,good stability and no side effects.It has become a research hotspot in the field of functional food in recent years.In this paper,the chelation mechanism of metal ion chelates of foodborne polypeptides was reviewed,and their binding sites and chelation patterns were described.The stability of polypeptide metal ion chelate was analyzed.The absorption characteristics of polypeptide metal ion chelates in vitro digestion experiment and Caco-2 cell model were summarized.Fi-nally,the current research status at home and abroad was summarized,and the development prospect of food-borne polypeptide metal ion chelates was prospected.

Abstract:Photocatalytic technology has broad application prospects in the fields of environment protection and energy production.Bismuth oxychloride(BiOCl),as a potential photocatalyst,has garnered signifi-cant attention.However,the performance of BiOCl is limited by several factors,such as weak visible light response,severe recombination of photogenerated charge carriers,and a lack of active catalytic sites.To overcome these drawbacks,various material modification strategies have been employed,including the construction of heterostructures,elemental doping,and defect engineering.This review focuses on the roles of these three strategies,including heterostructure construction,elemental doping,and defect engi-neering,in enhancing the photocatalytic performance of BiOCl,as well as the research progress of BiOCl-based photocatalysts in practical applications.In summary,although BiOCl-based photocatalysts have demonstrated enormous potential for pollutant degradation,carbon dioxide reduction,hydrogen produc-tion,and nitrogen oxide removal,further optimization and innovation are still needed to promote their in-dustrial applications.

Abstract:Titanium alloys are widely used in biomedical fields.Corrosion resistance and biocompatibility are important research topics of titanium alloys.The research status of medical titanium alloy prepared by micro-arc oxidation was reviewed.The effects of electrical parameters,electrolyte and additives on the surface structure and biological properties of titanium alloy were summarized.The problems in the prepa-ration of medical materials by micro-arc oxidation technology were pointed out,and the application and de-velopment of micro-arc oxidation technology in the field of biomedicine were prospected.It was pointed out that the stable utilization of electrolyte and the effect mechanism of additives on biological safety need to be solved.

Abstract:Esophageal cancer is a prevalent malignancy worldwide,particularly in regions such as China,where its high incidence poses a significant threat to public health.Although imaging techniques are the primary diagnostic tools for esophageal cancer,their effectiveness in early detection is limited.Therefore,understanding the molecular mechanisms of esophageal cancer and identifying novel biomarkers are essen-tial for improving early diagnosis and enabling targeted therapies.In recent years,glycomics has emerged as a rapidly advancing field,with the glycan code playing an increasingly crucial role in tumorigenesis,pro-gression,and metastasis.Aberrant glycosylation has been demonstrated to exert a profound impact on a number of fundamental cancer processes,including tumorigenesis and progression.The glycomics altera-tions in esophageal cancer may offer valuable insights into the the mechanisms of tumor development and aid in the discovery of new biomarkers.This review highlights recent advancements in glycomics related to the early diagnosis and progression of esophageal cancer,focusing on the aberrant expression of glycans,glycoproteins,glycosyltransferases and glycosidases.The potential of glycomics in the discovery of bio-markers and targeted therapies for esophageal cancer is also discussed,aiming to provide valuable insights for future research in the field.

Abstract:The development of high-performance photocatalysts is of great research significance for the degradation of antibiotic pollutants.ZnWO4/BiOCl heterojunction materials were prepared using a simple water bath method,and their crystal structure,microstructure,surface chemical state and photoelectro-chemical properties of the samples were systematically characterized.The degradation performance of pho-tocatalytic materials with different composite ratios was studied using tetracycline hydrochloride(TCH)as the target pollutant.The results showed that when the molar ratio of BiOCl to ZnWO4 was 10∶3,Zn-WO4/BiOCl exhibits the highest photocatalytic activity,with a degradation ratio of 79.67％for TCH after 60 min of visible light irradiation.The efficient photocatalytic performance of this composite material is due to the formation of Z-scheme heterojunction,which promotes the separation efficiency of photo gener-ated electron-hole pairs.The free radical capture experiment showed that·O2-,·OH and h+are the main active species involved in the degradation of TCH.

Abstract:A novel zero-dimensional organic-inorganic hybrid metal halide C8H14N2SnCl6(where C8H12N2 represents 4-(ethylaminomethyl)pyridine)was synthesized by a reduced temperature crystallization method with a photoluminescence quantum yield of 4.30％at room temperature.Subsequently,C8H14N2SnCl6:Sb was ob-tained by introducing Sb3+with 5s2 lone pair of electrons,which showed stable and efficient orange-red broadband emission at 680 nm,with a Stokes shift of 335 nm,a quantum yield as high as 63.14％and good stability in air and thermal conditions.Theoretical calculations and research analyses show that the efficient broadband emission of C8H14N2SnCl6:Sb is attributed to self-trapped exciton(STE)emission.This work proposes an effective doping pathway to achieve efficient self-trapped emission,and explores the potential of tin(Ⅳ)-based metal halides in orange-red phosphors.

Abstract:In this paper,a series of anticonvulsant derivatives containing triazole structure were designed and synthesized and the structures of the target compounds were confirmed by 1H NMR,13C NMR and HMRS methods.The results of maximal electroshock(MES),subcutaneous pentylenetetrazole(scPTZ)and rotating rod(ROT)assays showed that most of the compounds possessed anticonvulsant activity and low neurotoxicity.Among them,compound 5o showed a PI value of 11.5 and 8.2 in MES and scPTZ ex-periments,respectively,with a higher safety than the positive control carbamazepine of 6.1(MES test)and ethosuximide of 3.5(PTZ test).The test of inhibitory neurotransmitter GABA content in brain tissue further revealed that compound 5o exerted anticonvulsant activity may be associated with increased GABA content in rat brain.The molecular docking results indicated that the potential compound 5o was able to generate significant interaction force with the BZs binding active site amino acid residues of GABAA recep-tor.The results of this study suggest that compound 5o has the potential to serve as a lead compound con-taining a structural fragment of triazole.

Abstract:This study focuses on the treatment of hydrochloric tetracycline by utilizing a rice husk derived bio-silica(BSi)supported TiO2 shell-core catalyst(BSi@TiO2)that offers both cost-effectiveness and high efficiency.By integrating this catalyst with dielectric barrier discharge plasma(DBDP)technology,a DB-DP-assisted catalytic reaction system was established.The results indicate that under the assistance of DB-DP,BSi@TiO2-72%achieved a tetracycline degradation rate of 78.42%,surpassing the combined degra-dation rates of standalone catalysis and discharge,thus demonstrating a significant synergistic effect be-tween BSi@TiO2 catalysis and DBDP discharge.The catalyst achieved an optimal balance between degra-dation performance and cost-effectiveness when the TiO2 loading was 36%.Furthermore,the experiments revealed that an increase in discharge voltage significantly enhanced the degradation efficiency,while high-er initial concentrations of tetracycline led to decreased degradation rates.Alkaline conditions further im-proved the degradation efficiency.This research provides valuable insights and references for the develop-ment of effective and non-toxic remediation techniques for antibiotic pollutants.

Abstract:To explore the impact mechanism of NanoFe3O4 and Fe(Ⅱ)ions on the anaerobic degradation of 3,5,6-trichloropyridinol(TCP)by Pseudomonas aeruginosa D-2.An anaerobic co-culture system was set up with three treatments:no iron control group(A,0 g/L),NanoFe3O4 treatment(B,2.5 g/L)and Fe(Ⅱ)treatment(C,2.5 g/L).The degradation performance of TCP in different groups was detected using HPLC.The differential gene expression screening and metabolic pathway enrichment analysis of the three treatments were conducted via transcriptome sequencing.Within 72 hours,the degradation rates of 50 mg/L TCP for the three treatments were 54.08％(A),40.20％(B),and 60.24％(C),respectively.NanoFe3O4 inhibited TCP degradation,but Fe(Ⅱ)ions significantly accelerated TCP degradation,increas-ing its degradation rate by 14.16％.Transcriptomic analysis showed that NanoFe3O4 enriched some path-ways related to DNA damage stimuli,cell stress responses and DNA damage repair,and upregulated genes associated with DNA damage stress response and DNA repair.While,Fe(Ⅱ)significantly enriched some pathways related to energy metabolism such as ribosomes,TCA cycle,and oxidative phosphoryla-tion,and upregulated iron-dependent enzyme.NanoFe3O4 triggered the emergency damage repair system of strain D-2 and initiated the protective mechanism,leading to a 9.78％decrease in the degradation rate of TCP.Fe(Ⅱ)ions further activated energy metabolism by up-regulating the expression of key enzymes,thereby resulting in a 14.1％increase in the degradation rate of TCP.