作者机构：
[Xia Liu; Zhongshan Feng; Cuiwen Deng; Quan Yang; Minhao Wang; Xinjie Zhang; Yi Hu; Yufan Zheng; Juan Zeng; Juanjuan Han] Hubei Key Laboratory of Agricultural Waste Resource Utilization, School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China;[Bencai Lin] School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou 213164, PR China
通讯机构：
[Juan Zeng; Juanjuan Han] H;Hubei Key Laboratory of Agricultural Waste Resource Utilization, School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
摘要：
This work reports an eco-friendly, economical, and straightforward fabrication of chitosan (CS)/poly(diallyldimethylammonium chloride) (PDDA) blended anion exchange membranes via an aqueous processing strategy, where CS dissolved in a KOH/urea/H 2 O system forms the polymer matrix and PDDA acts as the hydroxide-ion conductor. Membranes are cast from solution and neutralized in KCl(aq) to form a gel film, followed by dehydration to form films. Robust hydrogen bond cross-linking facilitates lateral aggregation of chitosan chains, ensuring excellent component compatibility, low in-plane swelling (4.3–10.3 % at 80 °C), and favorable mechanical properties. The inherent hydrophilicity of CS and PDDA, imparts high through-plane swelling (45.0–150.1 % at 80 °C) and water uptake (142.5–327.2 % at 80 °C). High water uptake facilitates improved hydroxide conductivity (22.6–41.2 mS cm −1 at 80 °C) and significantly enhances alkaline stability in hot KOH solutions (mass retention: 79.3–88.6 %; IEC retention: 70.6–73.9 %; conductivity retention: 76.8–86.1 %). The optimized PDDA@CS 7.0% -2 membrane achieves a peak power density of 180.0 mW cm −2 at 325.2 mA cm −2 , demonstrating competitive performance among CS or PDDA-based AEMs.
This work reports an eco-friendly, economical, and straightforward fabrication of chitosan (CS)/poly(diallyldimethylammonium chloride) (PDDA) blended anion exchange membranes via an aqueous processing strategy, where CS dissolved in a KOH/urea/H 2 O system forms the polymer matrix and PDDA acts as the hydroxide-ion conductor. Membranes are cast from solution and neutralized in KCl(aq) to form a gel film, followed by dehydration to form films. Robust hydrogen bond cross-linking facilitates lateral aggregation of chitosan chains, ensuring excellent component compatibility, low in-plane swelling (4.3–10.3 % at 80 °C), and favorable mechanical properties. The inherent hydrophilicity of CS and PDDA, imparts high through-plane swelling (45.0–150.1 % at 80 °C) and water uptake (142.5–327.2 % at 80 °C). High water uptake facilitates improved hydroxide conductivity (22.6–41.2 mS cm −1 at 80 °C) and significantly enhances alkaline stability in hot KOH solutions (mass retention: 79.3–88.6 %; IEC retention: 70.6–73.9 %; conductivity retention: 76.8–86.1 %). The optimized PDDA@CS 7.0% -2 membrane achieves a peak power density of 180.0 mW cm −2 at 325.2 mA cm −2 , demonstrating competitive performance among CS or PDDA-based AEMs.
期刊：
Journal of Tribology,2026年148(1):011701 ISSN：0742-4787
通讯作者：
Hua-Xi Zhou
作者机构：
[Jing-Lun Xie; Chang-Guang Zhou] Department of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;[Xiao-Yi Wang; Hua-Xi Zhou; Yi Zhang] Department of Mechanical Engineering, Wuhan Polytechnic University, Wuhan 430048, China
通讯机构：
[Hua-Xi Zhou] D;Department of Mechanical Engineering, Wuhan Polytechnic University, Wuhan 430048, China
摘要：
It is now understood that n-propanol, a higher alcohol constituent in Baijiu, significantly impacts its overall quality. Excessive levels can impart a spicy and bitter taste, necessitating strict control. Despite its importance, the precise mechanism underlying the production of high-content n-propanol in Baijiu brewing and the specific microorganisms responsible for this process remain unclear. This study isolated Lentilactobacillus diolivorans ZX6, known for its high n-propanol production, from Baijiu fermented grains using a modified MRS (SMRS) enrichment medium and gas chromatography detection. The pure strain ZX6 produced 4,399 mg/L of n-propanol in SMRS medium. Using the key enzyme gene sequence for 1,2-propanediol metabolism in L. diolivorans, we designed primers and established a quantitative PCR method to quantify L. diolivorans in first-round fermented grains from three different sauce-flavor Baijiu distilleries. The widespread presence of L. diolivorans in sauce-flavor Baijiu fermented grains indicates its potential role as one of the key microorganisms responsible for the high concentrations of n-propanol. L. diolivorans ZX6 directly utilized glucose fermentation to produce large amounts of n-propanol. High n-propanol synthesis from L. diolivorans ZX6 required high sugar concentrations, anaerobic conditions, and extended fermentation times. Transcriptome analysis revealed that pyruvate and lactic acid, likely major precursors, could enter the methylglyoxal pathway under the catalysis of lactaldehyde dehydrogenase, respectively. These compounds were subsequently metabolized to 1,2-propanediol and then to n-propanol. These findings provide insights into identifying n-propanol-producing microorganisms and establish a theoretical basis for elucidating the high-yield n-propanol mechanism in Baijiu brewing, along with strategies for regulating its content.
摘要：
Lignin is the only natural polymer compound containing a benzene ring on earth, and its conversion to monophenolic compounds is attracting more attention. Cu-dopped CuCo 2 O 4 is synthesized and further used to catalyze the oxidative conversion of lignin to monophenolic compounds. It is found that the conversion of lignin is affected by the molar ratio of Cu to Co, the amounts of catalyst and H 2 O 2 , reaction temperature and time, and CuCo 2 O 4 exhibits excellent catalytic performance. Under the optimized reaction conditions, the total yield of monophenolic compounds reaches 21.7%. CuCo 2 O 4 also possesses good recyclable performance, and the total yield of monophenolic compounds slightly drops to 17.6% after four cycles. A plausible mechanism for the conversion of lignin to monophenolic compounds is proposed. During the depolymerization of lignin, C O and C C bonds are broken to form monophenols. This work provides an effective catalyst for the conversion of lignin to monophenol and expands the way of high-value utilization of biomass.
摘要：
The development of materials to replace precious metal catalysts is key to achieving energy conversion at low cost. In this paper, a series of bifunctional catalysts based on 3d transition metal (TM) atoms and transition metal sulfide (TMD) heterojunctions with single-atom catalysts (SACs) based on density-functional theory (DFT) are reported. Oxygen electrocatalyst activity and stability were evaluated for 20 structures. The results showed that Ni-based SAC had significant OER/ORR catalytic activity with the lowest overpotential(0.41/0.78V). The mechanism of catalytic activity enhancement was investigated by descriptors of intermediate adsorption energy. A dual-atom catalyst (DAC) NiCo@Site Ⅰ was designed using the synergistic effect of active sites to reduce the reaction overpotential further. The overpotential of the active sites of the designed DACs was reduced compared to that of the SACs. This work contributes to solving key challenges in energy conversion and provides theoretical guidance for the design of bifunctional catalysts.
The development of materials to replace precious metal catalysts is key to achieving energy conversion at low cost. In this paper, a series of bifunctional catalysts based on 3d transition metal (TM) atoms and transition metal sulfide (TMD) heterojunctions with single-atom catalysts (SACs) based on density-functional theory (DFT) are reported. Oxygen electrocatalyst activity and stability were evaluated for 20 structures. The results showed that Ni-based SAC had significant OER/ORR catalytic activity with the lowest overpotential(0.41/0.78V). The mechanism of catalytic activity enhancement was investigated by descriptors of intermediate adsorption energy. A dual-atom catalyst (DAC) NiCo@Site Ⅰ was designed using the synergistic effect of active sites to reduce the reaction overpotential further. The overpotential of the active sites of the designed DACs was reduced compared to that of the SACs. This work contributes to solving key challenges in energy conversion and provides theoretical guidance for the design of bifunctional catalysts.
期刊：
Journal of Applied Polymer Science,2025年:e57388 ISSN：0021-8995
通讯作者：
Xu, Y
作者机构：
[Wang, Yuansheng; Hu, Yiming] Naval Univ Engn, Coll Naval Architecture & Ocean Engn, Wuhan, Peoples R China.;[Xu, Yan; Tan, Xiaoming; Liu, Qinyi; Xu, Y; Fang, Tao] Wuhan Polytech Univ, Sch Civil Engn & Architecture, Wuhan, Peoples R China.;[He, Jiaxuan; Wang, Zhen] Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mold Technol, Wuhan, Peoples R China.;[Zhou, Shengtai] Sichuan Univ, Polymer Res Inst, Natl Key Lab Adv Polymer Mat, Chengdu, Peoples R China.
通讯机构：
[Xu, Y ] W;Wuhan Polytech Univ, Sch Civil Engn & Architecture, Wuhan, Peoples R China.
关键词：
coatings;composites;functionalization of polymers;hydrophilic polymers
摘要：
Marine biofouling poses a threat to marine facilities. In this work, a quaternary ammonium salt (E54-QAS) was synthesized from triethylammonium hydrochloride and epoxy resin E-54, which was then incorporated into a polyurethane (PU) prepolymer to fabricate an antifouling coating. The coating exhibited a bonding strength as high as 3.12 MPa and impact resistance of 90 kg as well as excellent antibacterial efficiency against Pseudomonas aeruginosa at an E54-QAS content of 4.2%. Moreover, the antimicrobial efficacy of the coating remained above 99% after 3 months of immersion. The optimized formulation effectively inhibited diatom growth and adhesion, demonstrating superior antifouling performance and long-term efficacy. The coating shows promising application in maritime vessels, nuclear power plants, and offshore platforms, offering an effective solution to marine biofouling issues.
期刊：
International Journal of Biological Macromolecules,2025年308(Pt 3):142352 ISSN：0141-8130
通讯作者：
Cai, J
作者机构：
[Cai, Jie; Liu, Nian; Yang, Zhaoxing; He, Zhijun; Feng, Xiaofang; Xie, Fang] Wuhan Polytech Univ, Sch Modern Ind Selenium Sci & Engn, Wuhan 430023, Peoples R China.;[Cai, Jie; Liu, Xiaoqing] Wuhan Polytech Univ, Key Lab Deep Proc Major Grain & Oil, Hubei Key Lab Proc & Transformat Agr Prod, Minist Educ, Wuhan 430023, Peoples R China.
通讯机构：
[Cai, J ] W;Wuhan Polytech Univ, Sch Modern Ind Selenium Sci & Engn, Wuhan 430023, Peoples R China.
关键词：
Delivery;OSA starch;Selenium nanoparticles
摘要：
Selenium nanoparticles (SeNPs) exhibit significant potential in antitumor therapy. However, challenges such as aggregation and lack of targeting capability limit their application. Herein, we developed selenium-loaded octenyl succinic anhydride starch (OSAS) micelles functionalized with folic acid (FA) for targeted tumor delivery. The FA-OSAS-SeNPs were synthesized through self-assembly, incorporating SeNPs into FA-conjugated OSAS micelles. Fourier Transform Infrared (FTIR) spectroscopy and UV–visible spectrophotometry confirmed the successful synthesis of FA-OSAS-SeNPs. The nanoparticles exhibited an average size of 131.66 ± 7.88 nm and a zeta potential of −19.54 ± 0.33 mV, with encapsulation efficiency and drug loading capacity of approximately 87.28 % and 8.96 %, respectively. FA-OSAS-SeNPs demonstrated good stability across various conditions, including different dilution ratios, temperatures, pH levels, and ionic strengths. In vitro studies showed that FA-OSAS-SeNPs exhibited significant targeted inhibitory effects on cervical cancer (HeLa) cells and markedly increased intracellular ROS levels, inducing apoptosis. This study presents a novel and effective strategy for targeted SeNPs delivery systems in tumor therapy, offering a valuable reference for future development of nanomaterials for clinical applications in cancer treatment.
Selenium nanoparticles (SeNPs) exhibit significant potential in antitumor therapy. However, challenges such as aggregation and lack of targeting capability limit their application. Herein, we developed selenium-loaded octenyl succinic anhydride starch (OSAS) micelles functionalized with folic acid (FA) for targeted tumor delivery. The FA-OSAS-SeNPs were synthesized through self-assembly, incorporating SeNPs into FA-conjugated OSAS micelles. Fourier Transform Infrared (FTIR) spectroscopy and UV–visible spectrophotometry confirmed the successful synthesis of FA-OSAS-SeNPs. The nanoparticles exhibited an average size of 131.66 ± 7.88 nm and a zeta potential of −19.54 ± 0.33 mV, with encapsulation efficiency and drug loading capacity of approximately 87.28 % and 8.96 %, respectively. FA-OSAS-SeNPs demonstrated good stability across various conditions, including different dilution ratios, temperatures, pH levels, and ionic strengths. In vitro studies showed that FA-OSAS-SeNPs exhibited significant targeted inhibitory effects on cervical cancer (HeLa) cells and markedly increased intracellular ROS levels, inducing apoptosis. This study presents a novel and effective strategy for targeted SeNPs delivery systems in tumor therapy, offering a valuable reference for future development of nanomaterials for clinical applications in cancer treatment.
通讯机构：
[Chen, Y ] W;Wuhan Polytech Univ, Coll Mech Engn, Wuhan 430048, Hubei, Peoples R China.
关键词：
3D point cloud;Genetic algorithm-based wavelet neural network;Mean absolute percentage error;Poultry viscera;Root mean square error
摘要：
In order to avoid damaging viscera during poultry evisceration and enhance the economic value of poultry products, this paper proposes a predictive method for poultry carcass visceral dimensions based on 3D point cloud and a Genetic Algorithm-based Wavelet Neural Network (GA-WNN). In this study, a data set of poultry carcasses was obtained through the use of 3D point cloud scanning equipment combined with reverse engineering software. The inputs and predicted targets of the model were determined through correlation analysis of various carcass dimensions. Then, a prediction model of poultry visceral size (GA-WNN) was built by K-fold cross validation method, Genetic Algorithm and Wavelet Neural Network (WNN). By comparing the prediction results and analyzing Mean Absolute Percentage Error (MAPE) and Root Mean Square Error (RMSE) of the six models, it was determined that the GA-WNN model had the best prediction results. Finally, in order to verify the generalizability of the method, generalizability experiments were conducted on different breeds of poultry, which proved that the method of this study had superior generalizability ability. In the comparative analysis of the six models, the MAPE and RMSE of the GA-WNN model for the prediction of the three visceral dimensions were the lowest except for the RMSE for the prediction of visceral length. Compared with the largest of the two kinds of errors, the MAPE and RMSE for the prediction of the position of the upper end of the left liver by the method of this study were lower by 5.56% and 0.915 cm, respectively, and the prediction effect had a significant advantage. The experimental results showed that the model built in this paper based on 3D point cloud and GA-WNN network can accurately predict the size of the viscera of poultry carcasses, thus providing theoretical references for the automated evisceration technology without damaging the viscera.
In order to avoid damaging viscera during poultry evisceration and enhance the economic value of poultry products, this paper proposes a predictive method for poultry carcass visceral dimensions based on 3D point cloud and a Genetic Algorithm-based Wavelet Neural Network (GA-WNN). In this study, a data set of poultry carcasses was obtained through the use of 3D point cloud scanning equipment combined with reverse engineering software. The inputs and predicted targets of the model were determined through correlation analysis of various carcass dimensions. Then, a prediction model of poultry visceral size (GA-WNN) was built by K-fold cross validation method, Genetic Algorithm and Wavelet Neural Network (WNN). By comparing the prediction results and analyzing Mean Absolute Percentage Error (MAPE) and Root Mean Square Error (RMSE) of the six models, it was determined that the GA-WNN model had the best prediction results. Finally, in order to verify the generalizability of the method, generalizability experiments were conducted on different breeds of poultry, which proved that the method of this study had superior generalizability ability. In the comparative analysis of the six models, the MAPE and RMSE of the GA-WNN model for the prediction of the three visceral dimensions were the lowest except for the RMSE for the prediction of visceral length. Compared with the largest of the two kinds of errors, the MAPE and RMSE for the prediction of the position of the upper end of the left liver by the method of this study were lower by 5.56% and 0.915 cm, respectively, and the prediction effect had a significant advantage. The experimental results showed that the model built in this paper based on 3D point cloud and GA-WNN network can accurately predict the size of the viscera of poultry carcasses, thus providing theoretical references for the automated evisceration technology without damaging the viscera.
摘要：
A novel peptide attenuating skeletal muscle atrophy was prepared, identified, screened from corn and its molecular mechanism was explored using two-step enzymatic hydrolysis, molecular docking, and sarcopenia mice model. The results showed that the DPPH free radical scavenging rate of corn peptides (CPs) was 45.20 % under the optimum preparation conditions. Fifty-one peptide fragments were identified from CPs, among which QQPIVGGA, QYQLPSY, LQQQLL, and LQQQQL presented superior affinity with mTORC1 and FOXO in molecular docking. LQQQLL (0.02 mM) significantly increased the proliferative activity of senescent C2C12 cells by 41.67 % compared with the model group ( P < 0.05), showing the potential to attenuate skeletal muscle atrophy. The sarcopenia mice model results indicated that CPs and LQQQLL significantly improved the content of total superoxide dismutase (T-SOD), skeletal muscle mass index (SMI), and decreased the level of malondialdehyde (MDA), tumor necrosis factor (TNF)-α, muscle atrophy protein Fbox-1 (Atrogin-1), and 8-hydroxydeoxyguanosine (8-OHdG) ( P < 0.05). CPs and LQQQLL also markedly increased the cross-sectional muscle area and the relative content of type II muscle fibers in sarcopenia mice. Additionally, CPs and LQQQLL significantly up-regulated the expression levels of PI3K, AKT and mTOR proteins ( P < 0.05), reduced the proliferation of Proteobacteria , Actinobacteriota , Desulfobacterota, and Staphylococcus and promoted the proliferation of Bacteroidota, and Lactobacillus . In conclusion, CPs and LQQQLL could activate the PI3K/AKT/mTOR signaling pathway, and reduce the proliferation of pathogens and promote the proliferation of intestinal microorganisms, thus improving the attenuation of skeletal muscle.
A novel peptide attenuating skeletal muscle atrophy was prepared, identified, screened from corn and its molecular mechanism was explored using two-step enzymatic hydrolysis, molecular docking, and sarcopenia mice model. The results showed that the DPPH free radical scavenging rate of corn peptides (CPs) was 45.20 % under the optimum preparation conditions. Fifty-one peptide fragments were identified from CPs, among which QQPIVGGA, QYQLPSY, LQQQLL, and LQQQQL presented superior affinity with mTORC1 and FOXO in molecular docking. LQQQLL (0.02 mM) significantly increased the proliferative activity of senescent C2C12 cells by 41.67 % compared with the model group ( P < 0.05), showing the potential to attenuate skeletal muscle atrophy. The sarcopenia mice model results indicated that CPs and LQQQLL significantly improved the content of total superoxide dismutase (T-SOD), skeletal muscle mass index (SMI), and decreased the level of malondialdehyde (MDA), tumor necrosis factor (TNF)-α, muscle atrophy protein Fbox-1 (Atrogin-1), and 8-hydroxydeoxyguanosine (8-OHdG) ( P < 0.05). CPs and LQQQLL also markedly increased the cross-sectional muscle area and the relative content of type II muscle fibers in sarcopenia mice. Additionally, CPs and LQQQLL significantly up-regulated the expression levels of PI3K, AKT and mTOR proteins ( P < 0.05), reduced the proliferation of Proteobacteria , Actinobacteriota , Desulfobacterota, and Staphylococcus and promoted the proliferation of Bacteroidota, and Lactobacillus . In conclusion, CPs and LQQQLL could activate the PI3K/AKT/mTOR signaling pathway, and reduce the proliferation of pathogens and promote the proliferation of intestinal microorganisms, thus improving the attenuation of skeletal muscle.
作者机构：
[Tahir, Muhammad; Tahir, M; Ahmad, Waheed; Dai, Jun; Dai, J] Beijing Inst Technol, Sch Mechatron Engn, Beijing 100081, Peoples R China.;[Bibi, Batoul] Ghazi Univ, Dept Chem, DG Khan 32200, Pakistan.;[Peng, Zhen; He, L; Xiong, Yibo; Khan, Arif Ullah; He, Liang; Ul Nisa, Fazal; Ma, Zeyu; Naseem, Mizna] Sichuan Univ, Sch Mech Engn, State Key Lab Intelligent Construct & Hlth Operat, Chengdu 610065, Peoples R China.;[Gong, Fengming] Sichuan Univ, West China Hosp 2, Dept Gynecol & Obstet, Dev & Related Dis Women & Children Key Lab Sichuan, Chengdu 610041, Peoples R China.;[Tang, Hui] Univ Elect Sci & Technol China, Sch Mat & Energy, Chengdu 611731, Peoples R China.
通讯机构：
[He, L ] S;[Tahir, M; Dai, J ] B;Beijing Inst Technol, Sch Mechatron Engn, Beijing 100081, Peoples R China.;Sichuan Univ, Sch Mech Engn, State Key Lab Intelligent Construct & Hlth Operat, Chengdu 610065, Peoples R China.
关键词：
Zeolitic imidazolate frameworks;Metal-organic frameworks;Electrochemical gas sensors
摘要：
Zeolitic imidazolate framework-8 (ZIF-8), a subgroup of metal-organic frameworks, has garnered significant focus due to its remarkable structural tunability, chemical stability, and high surface area. These attributes make ZIF-8 and its derivatives desirable materials for drug delivery, catalysis, absorption of different gases, and gas sensing applications. This review comprehensively explains the current advances in the synthesis of ZIF-8 and its derivatives, emphasizing the various approaches, including solvothermal, mechanochemical, sonochemical, and seed-assisted methods, etc. The influence of critical parameters like linkers, solvents, pH, temperature, reaction flow rate, viscosity, interfacial tension, and reaction conditions on the morphology and performance of ZIF-8 is systematically analyzed. Furthermore, it explores the roles of ZIF-8-based materials in electrochemical sensing, highlighting their performance in sensing gases such as CO 2 , NH 3 , H 2 S, volatile organic compounds, NO 2 , and H 2 . The mechanisms behind the sensing capabilities of pure, composite, and hybrid ZIF-8 are explained, emphasizing the structure-property relationship and the development of composites. Challenges such as reproducibility, scalability, and environmental stability are also addressed, alongside prospects for integrating ZIF-8 into next-generation gas sensors. This review provides insight into the synthesis-application nexus, aiming to guide future research towards the rational design of ZIF-8-based gas sensors with improved performance and practical utility.
Zeolitic imidazolate framework-8 (ZIF-8), a subgroup of metal-organic frameworks, has garnered significant focus due to its remarkable structural tunability, chemical stability, and high surface area. These attributes make ZIF-8 and its derivatives desirable materials for drug delivery, catalysis, absorption of different gases, and gas sensing applications. This review comprehensively explains the current advances in the synthesis of ZIF-8 and its derivatives, emphasizing the various approaches, including solvothermal, mechanochemical, sonochemical, and seed-assisted methods, etc. The influence of critical parameters like linkers, solvents, pH, temperature, reaction flow rate, viscosity, interfacial tension, and reaction conditions on the morphology and performance of ZIF-8 is systematically analyzed. Furthermore, it explores the roles of ZIF-8-based materials in electrochemical sensing, highlighting their performance in sensing gases such as CO 2 , NH 3 , H 2 S, volatile organic compounds, NO 2 , and H 2 . The mechanisms behind the sensing capabilities of pure, composite, and hybrid ZIF-8 are explained, emphasizing the structure-property relationship and the development of composites. Challenges such as reproducibility, scalability, and environmental stability are also addressed, alongside prospects for integrating ZIF-8 into next-generation gas sensors. This review provides insight into the synthesis-application nexus, aiming to guide future research towards the rational design of ZIF-8-based gas sensors with improved performance and practical utility.
通讯机构：
[Huang, HX ] W;Wuhan Polytech Univ, Sch Math & Comp Sci, Wuhan 430048, Peoples R China.
关键词：
To visualize the research hotspots and development direction of green ships in the fields of technology;operation and policy measures;this subsection applies the Co-occurrence Analysis of VOSviewer to generate a visual map. VOSviewer software's clustering algorithm is primarily based on the correlation intensity algorithm;which selects high-frequency keywords in the text for clustering analysis;and reflects the research theme of the discipline through high-frequency keywords. The analysis
摘要：
With the increased global focus on environmental protection, green ships have emerged as the cornerstone to the maritime industry's long-term development. Based on the knowledge graph method, this paper uses bibliometric analysis to examine the research progress of green ships in a multidimensional perspective. Firstly, sort out the definition and connotation of green ships, and clarify their greening requirements in the whole life cycle. Bibliometric analysis of relevant literature using the bibliometrix package; secondly, combined with the virtual analysis method-VOSviewer software, it explores the current research status of green ships from the multi-dimensional perspectives of technical, operational and policy. The results indicate that the hot spots in technical measures are “green energy”, “ship optimization” and “waste heat recovery”; the hot spots in operational measures are “speed optimization” and “liner shipping”; and the hot spots in policy measures are “market mechanism” and “international regulations”.
With the increased global focus on environmental protection, green ships have emerged as the cornerstone to the maritime industry's long-term development. Based on the knowledge graph method, this paper uses bibliometric analysis to examine the research progress of green ships in a multidimensional perspective. Firstly, sort out the definition and connotation of green ships, and clarify their greening requirements in the whole life cycle. Bibliometric analysis of relevant literature using the bibliometrix package; secondly, combined with the virtual analysis method-VOSviewer software, it explores the current research status of green ships from the multi-dimensional perspectives of technical, operational and policy. The results indicate that the hot spots in technical measures are “green energy”, “ship optimization” and “waste heat recovery”; the hot spots in operational measures are “speed optimization” and “liner shipping”; and the hot spots in policy measures are “market mechanism” and “international regulations”.
作者机构：
[Xie, Min; Lai, Yan; Fei, Dan; Zhou, Yaomin; Zhou, YM; Guang, Yelan] Jiangxi Acad Agr Sci, Inst Qual Safety & Stand Agr Prod, Key Lab Agroprod Qual & Safety Jiangxi Prov, Nanchang 330200, Jiangxi, Peoples R China.;[Xu, Jun] Jiangxi Acad Agr Sci, Inst Anim Husb & Vet Med, Nanchang 330200, Jiangxi, Peoples R China.;[Wu, Na] Jiangxi Agr Univ, Coll Food Sci & Technol, Nanchang 330045, Jiangxi, Peoples R China.;[Cai, Jie] Wuhan Polytech Univ, Sch Modern Ind Selenium Sci & Engn, Wuhan 430023, Hubei, Peoples R China.
通讯机构：
[Zhou, YM ] J;Jiangxi Acad Agr Sci, Inst Qual Safety & Stand Agr Prod, Key Lab Agroprod Qual & Safety Jiangxi Prov, Nanchang 330200, Jiangxi, Peoples R China.
关键词：
Egg quality;Volatile organic compounds;Chemometric analysis;Odor activity value
摘要：
This study analyzed the egg quality of two commercial layers and two local breeds and detected volatile organic compounds (VOCs) using headspace solid-phase microextraction (HS-SPME-GC-MS) coupled with principal components analysis (PCA) and partial least squares discriminant analysis (PLS-DA). A total of 70 VOCs were identified in four types of eggs, mainly including aldehydes, alcohols, ketones, and esters. Chemometric and odor active value (OAV) analysis indicated that cis-3-hexen-1-ol, nonanal, n-decanal, benzaldehyde, and geranial were the main contributing components of flavor in eggs and can also serve as potential marker to distinguish different types of eggs. Both native eggs and commercial eggs have plentiful VOCs. This study contributed to a better understanding of the differences between commercial eggs and native eggs, laying a foundation for the development and utilization of native eggs.
关键词：
Carbon nitride;Surface hydroxylation;Photocatalytic NO oxidation;Hydrothermal reaction;Photocatalytic mechanism
摘要：
The nitrogen oxide emissions originating from combustion pose significant risks to the environment. Photocatalysis is considered an efficient and environmentally friendly strategy to alleviate this problem. Graphitic carbon nitride (g-C3N4) is regarded as one of the most promising organic photocatalytic materials for environmental purification. However, its small specific surface area, weak adsorption and high recombination rate of charge carriers result in low intrinsic photocatalytic activity. To overcome these obstacles, a hydrothermal treatment of dicyandiamide-derived g-C3N4 (DCN) at different temperatures (140–200 °C) was employed to enhance the photocatalytic activity for NO oxidation. The experimental results demonstrated a significant improvement in the photocatalytic oxidation removal rate of NO after a hydrothermal treatment. The optimal photocatalyst, DCN-180, treated at 180 °C, demonstrated the highest NO removal efficiency (65.0 %), which is twice the value of pristine DCN (32.5 %). Additionally, the formation of the toxic intermediate NO2 was effectively suppressed during the reaction. Photoelectrochemical tests revealed that DCN-180 exhibited higher photocurrent density and smaller impedance radius compared to the untreated g-C3N4 sample. Moreover, density functional theory (DFT) calculations confirmed that the DCN-180 sample showed a stronger ability to adsorb O2 and NO. The enhanced photocatalytic NO oxidation performance of DCN-180 has been primarily attributed to its enlarged specific surface area (from 10.7 to 35.5 m2 g−1), local polarization effect, reduced interfacial charge transfer resistance, and improved adsorption abilities for NO and O2 molecules. This study provides valuable insights for designing and preparing highly efficient g-C3N4 based photocatalysts through surface modification for photocatalytic NO purification.
The nitrogen oxide emissions originating from combustion pose significant risks to the environment. Photocatalysis is considered an efficient and environmentally friendly strategy to alleviate this problem. Graphitic carbon nitride (g-C3N4) is regarded as one of the most promising organic photocatalytic materials for environmental purification. However, its small specific surface area, weak adsorption and high recombination rate of charge carriers result in low intrinsic photocatalytic activity. To overcome these obstacles, a hydrothermal treatment of dicyandiamide-derived g-C3N4 (DCN) at different temperatures (140–200 °C) was employed to enhance the photocatalytic activity for NO oxidation. The experimental results demonstrated a significant improvement in the photocatalytic oxidation removal rate of NO after a hydrothermal treatment. The optimal photocatalyst, DCN-180, treated at 180 °C, demonstrated the highest NO removal efficiency (65.0 %), which is twice the value of pristine DCN (32.5 %). Additionally, the formation of the toxic intermediate NO2 was effectively suppressed during the reaction. Photoelectrochemical tests revealed that DCN-180 exhibited higher photocurrent density and smaller impedance radius compared to the untreated g-C3N4 sample. Moreover, density functional theory (DFT) calculations confirmed that the DCN-180 sample showed a stronger ability to adsorb O2 and NO. The enhanced photocatalytic NO oxidation performance of DCN-180 has been primarily attributed to its enlarged specific surface area (from 10.7 to 35.5 m2 g−1), local polarization effect, reduced interfacial charge transfer resistance, and improved adsorption abilities for NO and O2 molecules. This study provides valuable insights for designing and preparing highly efficient g-C3N4 based photocatalysts through surface modification for photocatalytic NO purification.
摘要：
Detecting lung nodules through computed tomography (CT) scans plays an important role in early prevention, clinical diagnosis, and monitoring of lung cancer. However, the small, irregular shape and low resolution of lung nodules, together with multiscale challenges, often hinder accurate detection, especially for small nodules. To overcome these obstacles, we propose an improved detection algorithm, a real-time detection transformer (RT-DETR) nodule, specifically for lung nodules in CT images. The proposed RT-DETR framework includes several improvements aimed at increasing the detection accuracy. First, a RFAFasterNet is designed by replacing the backbone network with FasterNet network and incorporating the receptive field attention convolution (RFAConv) module. This integration improves the network’s capacity to capture both local and distant features, guided by the receptive field attention mechanism while effectively minimizing redundant computations. In addition, a small object detection layer (P2) is added to solve the problem of low-resolution small nodule detection. Finally, a hierarchical scale–based path aggregation network is proposed to further refine the detection of different nodule sizes by integrating deep-level and shallow-level features. Comprehensive experiments on the LUNA16 dataset demonstrate that the competition performance metric reaches 88.3% , which is 2.7% higher than the baseline model. In addition, the experimental results also show that the model has strong generalization in different datasets.
摘要：
The vat photopolymerization (VPP) technology offers exceptional flexibility in design and manufaction of high-performance piezoceramic structures. However, due to the high refractive index and strong UV absorption characteristics of Pb-based ceramics, ceramic slurries are required to have a low solid content in for efficient deep-curing. This limitation often results in sintering distortion, cracking, low density, and deteriorated piezoelectric properties. To address these challenges, a heat treatment process was initially employed to spheroidize the PZT powder, which effectively decreased light scattering and absorption. Subsequently, high-refractive-index and highly reactive photosensitive resins were introduced to enhance the penetration of UV light and reduce the critical exposure energy of the slurry. Additionally, a hindered amine light stabilizer is added to capture the peroxy radicals to overcome the oxygen inhibition effect and further increase the curing depth. As a result, a PZT slurry with a high solid content of 45 vol.%, was successfully formulated, facilitating the manufacturing of PZT ceramics with complex structures. The sintered samples achieved a high relative density of 96.5% and a d 33 value of 573 pC/N. These optimized strategies provide a solid foundation for the development of high-performance PZT devices with intricate geometries.
作者机构：
[Xu, Jin-long; Ai, Mei; Xu, JL; Zhu, Ming; Wang, Jie; Yu, Nai-ping; Zhang, Chuan-peng; Zhu, M; Liu, Xiao-lan; Jiang, Peng; Jing, Yingjie] Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing, Peoples R China.;[Xu, Jin-long; Ai, Mei; Xu, JL; Zhu, Ming; Yu, Nai-ping; Zhang, Chuan-peng; Zhu, M; Liu, Xiao-lan; Jiang, Peng] Guizhou Univ, Guizhou Radio Astron Observ, Guiyang 550000, Peoples R China.;[Jiao, Qian] Wuhan Polytech Univ, Sch Elect & Elect Engn, Wuhan 430023, Peoples R China.;[Liu, Yao] Qiannan Normal Univ Nationalities, Sch Phys & Elect, Longshan Rd, Tuyun 558000, Peoples R China.;[Liu, Yao] Qiannan Key Lab Radio Astron, Duyun 558000, Guizhou, Peoples R China.
通讯机构：
[Zhu, M; Xu, JL ] C;Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing, Peoples R China.;Guizhou Univ, Guizhou Radio Astron Observ, Guiyang 550000, Peoples R China.
摘要：
We present high-sensitivity and large-scale atomic hydrogen (H i) observations toward lenticular (S0) galaxy NGC 4111 using the Five-hundred-meter Aperture Spherical Radio Telescope. The column-density map shows that NGC 4111 and seven other different types of galaxies share a huge H i gas complex. The data also suggest that NGC 4111 is interacting with seven galaxies. Moreover, we identified a rotating gas disk associated with NGC 4111 from the H i complex. Still, the H i disk rotation direction has deviated from its stellar disk by about 34 .degrees 2, indicating that the NGC 4111 galaxy is undergoing a transition from a spiral galaxy to an S0 galaxy by the tidal interactions. The obtained dark matter to stellar mass ratio of NGC 4111 is 3.1 +/- 0.7, which is lower than the average value of the local Universe, implying that the interactions may strip its dark matter. Our results suggest that in a galaxy group environment, tidal interactions have a significant effect on galaxy features.
摘要：
Background: Allergic rhinitis (AR) is a prevalent allergic disorder characterized by a complex pathogenesis. Drawing on traditional Chinese medicine theory and contemporary pharmacological principles, this study developed an inhalation-based herbal formulation, ZHW, to explore a novel non-invasive therapeutic approach. Objective: To investigate the therapeutic effects of ZHW on AR and elucidate its underlying mechanisms and potential targets through an integrated analysis of network pharmacology and proteomics. Materials and Methods: The volatile components of ZHW were analyzed by gas chromatography-mass spectrometry (GC-MS). The mouse model of AR was induced by OVA sensitization. The therapeutic efficacy of ZHW was assessed based on nasal symptom scores, histopathological examination, and inflammatory cytokine levels. Furthermore, the underlying mechanisms and potential targets of ZHW were investigated through integrated network pharmacology and proteomics analyses. Results: GC-MS analysis identified 39 bioactive compounds in ZHW. Inhalation treatment with ZHW demonstrated significant anti-allergic effects in OVA-sensitized mice, as evidenced by (1) reduced sneezing frequency and nasal rubbing behaviors; (2) decreased serum levels of IL-4, histamine, and OVA-specific IgE; (3) attenuated IL-4 concentrations in both nasal lavage fluid and lung tissue; (4) diminished nasal mucosal thickening; and (5) suppression of inflammatory cell infiltration. Integrated network pharmacology and proteomics analyses indicated that ZHW's therapeutic effects were mediated through the modulation of multiple pathways, including the PI3K-Akt signaling pathway, the B cell receptor signaling pathway, oxidative phosphorylation, and the FcεRI signaling pathway. Key molecular targets involved Rac1, MAPK1, and SYK. Molecular docking simulations revealed strong binding affinities between ZHW's primary bioactive constituents (linalool, levomenthol, linoleic acid, Linoelaidic acid, and n-Valeric acid cis-3-hexenyl ester) and these target proteins. Conclusions: The herbal formulation ZHW demonstrates significant efficacy in alleviating allergic rhinitis symptoms through multi-target modulation of key signaling pathways, including PI3K-Akt- and FcεRI-mediated inflammatory responses. These findings substantiate ZHW's therapeutic potential as a novel, non-invasive treatment for AR and provide a strong basis for the development of new AR therapies. Future clinical development will require systematic safety evaluation to ensure optimal therapeutic outcomes.
作者机构：
["Xiong, Wenjing; Zhang, Yuxin; Fan, Guozhi; Pan, Cheng; Long, Yifei"] School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China;[Meng, Jia; Shen, Canduo] Quartermaster Engineering Technology Research Department, Systems Engineering Institute, Academy of Military Sciences of the People's Liberation Army, Beijing 100010, PR China
通讯机构：
[Canduo Shen] Q;[Yifei Long] S;School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China<&wdkj&>Quartermaster Engineering Technology Research Department, Systems Engineering Institute, Academy of Military Sciences of the People's Liberation Army, Beijing 100010, PR China
摘要：
As the increasing demand for food safety, it is crucial to find a safer and more effective method to replace traditional preservation of fruits and vegetables. Electric field preservation, as a novel preservation technology, not only prevents contamination of fresh vegetables, but also mitigates adverse effects on human health. In this paper, comparing conventional refrigeration as a benchmark, the impact of an alternating current electric field (ACEF) on the storage quality of fresh-cut Chinese cabbage and spinach was investigated. The differences in preservation effectiveness were determined by analyzing the changes of quality indicators, nutrients and four microbial indicators (Total Microbiological Numbers, E. coli , Molds, S. aureus ) within 30 days at a storage temperature of 4 °C. The spoilage rates of two fresh-cut vegetables with ACEF were lower compared with those without ACEF, reduced by 30 % and 25 %, respectively. In addition, the weight loss rate of the Chinese cabbage and spinach with ACEF was reduced by 0.10 % and 0.40 %, respectively. Between the two groups, the soluble solids content (SSC) of the Chinese cabbage with ACEF was about 4.93 % higher than without ACEF. On the contrary the SSC of the spinach with ACEF was consistently lower than without ACEF. Meanwhile, vitamin C content of the Chinese cabbage and spinach with ACEF was 4.58 % and 3.95 % higher than that without ACEF, respectively. Moreover, ACEF treatment inhibited microbial growth, resulting in lower levels of total microbiological numbers (9.19 %, 8.96 %), E. coli (12.72 %, 7.55 %), molds (7.88 %, 17.28 %), and S. aureus (10.16 %, 11.50 %) in the Chinese cabbage and spinach compared with those without ACEF treatment. All these results indicated that ACEF could represent an interesting preservation technique, which maintains the freshness of fresh-cut vegetables for a longer period of time.
As the increasing demand for food safety, it is crucial to find a safer and more effective method to replace traditional preservation of fruits and vegetables. Electric field preservation, as a novel preservation technology, not only prevents contamination of fresh vegetables, but also mitigates adverse effects on human health. In this paper, comparing conventional refrigeration as a benchmark, the impact of an alternating current electric field (ACEF) on the storage quality of fresh-cut Chinese cabbage and spinach was investigated. The differences in preservation effectiveness were determined by analyzing the changes of quality indicators, nutrients and four microbial indicators (Total Microbiological Numbers, E. coli , Molds, S. aureus ) within 30 days at a storage temperature of 4 °C. The spoilage rates of two fresh-cut vegetables with ACEF were lower compared with those without ACEF, reduced by 30 % and 25 %, respectively. In addition, the weight loss rate of the Chinese cabbage and spinach with ACEF was reduced by 0.10 % and 0.40 %, respectively. Between the two groups, the soluble solids content (SSC) of the Chinese cabbage with ACEF was about 4.93 % higher than without ACEF. On the contrary the SSC of the spinach with ACEF was consistently lower than without ACEF. Meanwhile, vitamin C content of the Chinese cabbage and spinach with ACEF was 4.58 % and 3.95 % higher than that without ACEF, respectively. Moreover, ACEF treatment inhibited microbial growth, resulting in lower levels of total microbiological numbers (9.19 %, 8.96 %), E. coli (12.72 %, 7.55 %), molds (7.88 %, 17.28 %), and S. aureus (10.16 %, 11.50 %) in the Chinese cabbage and spinach compared with those without ACEF treatment. All these results indicated that ACEF could represent an interesting preservation technique, which maintains the freshness of fresh-cut vegetables for a longer period of time.
