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Maternal supplementation with mulberry-leaf flavonoids improves the development of skeletal muscle in the offspring of chickens

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ANIMAL NUTRITION 2024年第3期18卷 72-83页

作者： Huang, Zhenwu dai, hongjian Li, Simeng Wang, Zhe Wei, Quanwei Ning, Zhonghua Guo, Yuming Shi, Fangxiong Lv, Zengpeng China Agr Univ Coll Anim Sci & Technol State Key Lab Anim Nutr & Feeding Beijing 100193 Peoples R China Nanjing Agr Univ Coll Anim Sci & Technol Nanjing 210095 Peoples R China Chinese Acad Agr Sci Inst Anim Sci State Key Lab Anim Nutr & Feeding Beijing 100193 Peoples R China Aksu Vocat Tech Coll Sch Bioengn Aksu 843000 Peoples R China

The development of skeletal muscle is a crucial factor in determining the meat yield and economic benefits of broiler production. Recent research has shown that mulberry leaves and their extracts can be used to significantly improve the growth performance of livestock and poultry. The present study aims to elucidate the mechanisms involved in the regulation of skeletal muscle development in broiler offspring by dietary mulberry-leaf flavonoids (MLF) supplementation from the perspective of maternal effect theory. A total of 270 Qiling broiler breeder hens were randomly assigned to 3 treatments with different doses of MLF (0, 30, 60 mg/kg) for 8 weeks before collecting their fertilized eggs. The chicken offspring at 13 and 19 d of embryonic stage, and from 1 to 28 d old after hatching were included in this study. The results showed that maternal supplementation increased the breast muscle weight and body weight of the offspring at the embryo and chick stages (P < 0.05). This was followed by increased cross-sectional area of pectoral muscle fibres at 14 d (P < 0.05). Further determination revealed a tendency towards increased serum levels of insulin-like growth factor 1 (IGF-1) (P = 0.092) and muscle fibre count (P = 0.167) at 1 d post-hatching following maternal MLF treatment, while serum uric acid (UA) was decreased at 14 d after hatching (P < 0.05). Moreover, maternal MLF supplementation significantly up-regulated the mRNA expression of the myogenic regulatory factor Myf5 in skeletal muscle at the both embryonic and growth stages (P < 0.05). The relative abundance of the downstream protein of BMPR2, Smad1 and p-Smad1/5/9 in the TGF beta signalling pathway was significantly increased by maternal MLF treatment. Meanwhile, the increased expression of the target protein p-mTOR in the breast muscle of the offspring chicks is in accordance with the improved growth rate of the breast and the body. In conclusion, maternal MLF supplementation can promote muscle protein metab

关键词： Broiler breeder hen Mulberry-leaf flavonoids Offspring Protein metabolism Skeletal muscle GROWTH-PERFORMANCE IMMUNE FUNCTION HYPERTROPHY LEAVES MECHANISMS REGULATOR PATHWAY EMBRYO DIETS BONE

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变电站巡检中无人机智能巡视系统的应用

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仪器仪表用户 2024年第1期31卷 73-75页

作者：戴鸿健陈宇赵斌国网太仓市供电公司江苏太仓215400

本文探讨了无人机智能巡视系统在变电站巡检中的广泛应用,首先介绍了变电站巡检的主要内容和方法,随后详细阐述了无人机智能巡视系统的构成、航线规划以及数据采集与分析过程。针对实际应用,深入讨论了该系统在设备检测与监控、维护和... 详细信息

本文探讨了无人机智能巡视系统在变电站巡检中的广泛应用,首先介绍了变电站巡检的主要内容和方法,随后详细阐述了无人机智能巡视系统的构成、航线规划以及数据采集与分析过程。针对实际应用,深入讨论了该系统在设备检测与监控、维护和保养、安全巡视等方面的应用情况。通过智能化技术,无人机系统实现了对变电站设备的高效监测,提高了设备运行的可靠性和安全性。

关键词：无人机智能巡视系统变电站巡检设备监控

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miR-155-5p靶向ARID2对口腔鳞状细胞癌有促进作用

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检验医学 2024年第1期39卷 87-94页

作者：戴宏建崔海宁李艳凤崔红梅苏州卫生职业技术学院附属口腔医院(苏州市华夏口腔医院)口腔科江苏苏州215009 无锡口腔医院口腔科江苏无锡214000

目的探讨miR-155-5p对口腔鳞状细胞癌(OSCC)细胞增殖、迁移和侵袭的调控作用和机制。方法收集人口腔癌细胞系CAL-27、HN4、HN6、SCC4、TCA8113和正常口腔上皮角质细胞系HOK,检测miR-155-5p表达。根据转染质粒的不同分为miR-NC组(转染m... 详细信息

目的探讨miR-155-5p对口腔鳞状细胞癌(OSCC)细胞增殖、迁移和侵袭的调控作用和机制。方法收集人口腔癌细胞系CAL-27、HN4、HN6、SCC4、TCA8113和正常口腔上皮角质细胞系HOK,检测miR-155-5p表达。根据转染质粒的不同分为miR-NC组(转染miR-155-5p模拟物阴性对照)和miR-155-5p组(转染miR-155-5p模拟物)、anti-NC组(转染miR-155-5p抑制物阴性对照)、anti-miR-155-5p组(转染miR-155-5p抑制物)、Vector组(转染空质粒载体)、pc-ARID2组(转染ARID2过表达质粒)、miR-NC+Vector组(共转染阴性对照和空质粒载体)、miR-155-5p+Vector组(共转染miR-155-5p模拟物和空质粒载体)和miR-155-5p+pc-ARID2组(共转染miR-155-5p模拟物和ARID2过表达质粒)。采用CCK-8实验、克隆形成实验检测细胞增殖情况,分别采用划痕实验和侵袭实验检测CAL-27细胞、HN4细胞的迁移、侵袭情况,采用免疫印迹法检测ARID2蛋白的表达情况。采用双荧光素酶报告基因实验验证miR-155-5p与ARID2的靶向关系。结果与正常口腔上皮角质细胞系HOK比较,OSCC细胞系(SCC4、HN6、HN4、CAL-27、TCA8113)miR-155-5p表达均显著上调(P<0.01)。与anti-NC组比较,anti-miR-155-5p组miR-155-5p相对表达量显著降低(P<0.01),增殖活性、克隆形成数、划痕闭合率和侵袭细胞数均显著降低(P<0.01)。与miR-NC组比较,miR-155-5p组ARID2蛋白表达显著下调(P<0.01),增殖活性、克隆形成数、划痕闭合率和侵袭细胞数均显著升高(P<0.01);anti-miR-155-5p组ARID2蛋白表达显著上调(P<0.01),增殖活性、克隆形成数、划痕闭合率和侵袭细胞数均显著降低(P<0.01)。双荧光素酶报告基因实验证实,与共转染miR-NC和pmiR-ARID2野生型质粒(pmiR-ARID2-wt)比较,共转染miR-155-5p mimic和pmiR-ARID2突变型质粒(pmiR-ARID2-wt)后荧光素酶活性显著降低(P<0.01)。与Vector组比较,pc-ARID2组ARID2 mRNA表达显著上调(P<0.01),增殖活性、克隆形成数、划痕闭合率和侵袭细胞数均显著降低(P<0.01)。与miR-NC+Vector组比较,miR-155-5p+Vector组增殖活性、克隆形成数、侵袭细胞数和划痕闭合率均显著升高(P<0.01);与miR-155-5p+Vector组比较,miR-155-5p+pc-ARID2组增殖活性、克隆形成数、侵袭细胞数和划痕闭合率均显著降低(P<0.01)。结论 OSCC细胞中miR-155-5p表达上调,并可通过靶向抑制ARID2表达促进OSCC细胞增殖、迁移和侵袭,进而发挥致癌基因作用。

关键词：微小RNA-155-5p AT富集作用域2 口腔鳞状细胞癌增殖迁移侵袭

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Recursive Filtering for Stochastic Systems With Filter-and-Forward Successive Relays

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IEEE/CAA Journal of Automatica Sinica 2024年第5期11卷 1202-1212页

作者： Hailong Tan Bo Shen Qi Li hongjian Liu School of Mathematics-Physics and Finance Anhui Polytechnic UniversityWuhu 241000China Anhui Future Technology Research Institute Anhui Polytechnic UniversityWuhu 241000China College of Information Science and Technology Donghua UniversityShanghai 201620China Engineering Research Center of Digitalized Textile and Fashion Technology Ministry of EducationShanghai 201620China School of Information Science and Engineering Hangzhou Normal UniversityHangzhou 311121China

In this paper,the recursive filtering problem is considered for stochastic systems over filter-and-forward successive relay(FFSR)*** FFSR is located between the sensor and the remote filter to forward the *** the successive relay,two cooperative relay nodes are adopted to forward the signals alternatively,thereby existing switching characteristics and inter-relay interferences(IRI).Since the filter-and-forward scheme is employed,the signal received by the relay is retransmitted after it passes through a linear *** objective of the paper is to concurrently design optimal recursive filters for FFSR and stochastic systems against switching characteristics and IRI of ***,a uniform measurement model is proposed by analyzing the transmission mechanism of ***,novel filter structures with switching parameters are constructed for both FFSR and stochastic *** the help of the inductive method,filtering error covariances are presented in the form of coupled difference ***,the desired filter gain matrices are further obtained by minimizing the trace of filtering error ***,the stability performance of the filtering algorithm is analyzed where the uniform bound is guaranteed on the filtering error ***,the effectiveness of the proposed filtering method over FFSR is verified by a three-order resistance-inductance-capacitance circuit system.

关键词： filtering successive stochastic

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A bounding surface visco-plasticity model considering generalized spacing ratio of soils

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第5期16卷 1832-1846页

作者： Xiaosen Kang hongjian Liao Qiangbing Huang Jianbing Peng Department of Geological Engineering Chang’an UniversityXi’an710054China Department of Civil Engineering Xi’an Jiaotong UniversityXi’an710049China

The non-unique critical state of soils with time-dependent behaviors is a significant issue in geotechnical engineering ***,previous bounding surface plasticity models cannot predict accurately the non-unique critical state of soils,because the distance between the compression line and critical state line charged by strain-rate effect is basically *** fill this gap,a generalized spacing ratio of soils is defined in the elasto-viscoplastic framework,and a bounding surface visco-plasticity model is formulated and verified,which can consider the generalized spacing ***,the generalized spacing ratio of soils reflects the distance between the compression line and the critical state line of soils with time-dependent ***,the generalized spacing ratio is introduced into an improved anisotropic bounding surface.A new expression of the visco-plastic multiplier is derived by solving the consistency equation of an anisotropic bounding *** the expression,a strain rate index is proposed to account for the strain-rate effect on visco-plastic strain increment,and a visco-plastic hardening modulus is derived to predict the visco-plastic response of soils in overconsolidation *** model is then verified through constant strain rate tests and creep ***,it can capture the non-unique critical states of soils with time-dependent behaviors due to the generalized spacing ratio and the creep rupture of soils due to the visco-plastic multiplier that considers the stress ratio and visco-plastic strain rate.

关键词： Soil Constitutive model Visco-plastic behavior Strain rate Creep Anisotropic

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Anomaly-Resistant Decentralized State Estimation Under Minimum Error Entropy With Fiducial Points for Wide-Area Power Systems

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IEEE/CAA Journal of Automatica Sinica 2024年第1期11卷 74-87页

作者： Bogang Qu Zidong Wang Bo Shen Hongli Dong hongjian Liu the College of Automation Engineering Shanghai University of Electric PowerShanghai 200090China IEEE the Department of Computer Science Brunel University LondonUxbridgeMiddiesex UB83PHUK the College of Information Science and Technology Donghua UniversityShanghai 200051 the Engineering Research Center of Digitalized Textile and Fashion Technology Ministry of EducationShanghai 201620China the Artificial Intelligence Energy Research Institute Northeast Petroleum UniversityDaqing 163318 the Heilongjiang Provincial Key Laboratory of Networking and Intelligent Control Northeast PetroleumDaqing 163318 the Sanya Offshore Oil&Gas Research Institute Northeast Petroleum UniversitySanya 572024China the Key Laboratory of Advanced Perception and Intelligent Control of High-End Equipment Ministry of EducationAnhui Polytechnic UniversityWuhu 2410000 the School of Mathematics and Physics Anhui Polytechnic UniversityWuhu 241000China

This paper investigates the anomaly-resistant decentralized state estimation(SE) problem for a class of wide-area power systems which are divided into several non-overlapping areas connected through transmission lines. Two classes of measurements(i.e., local measurements and edge measurements) are obtained, respectively, from the individual area and the transmission lines. A decentralized state estimator, whose performance is resistant against measurement with anomalies, is designed based on the minimum error entropy with fiducial points(MEEF) criterion. Specifically, 1) An augmented model, which incorporates the local prediction and local measurement, is developed by resorting to the unscented transformation approach and the statistical linearization approach;2) Using the augmented model, an MEEF-based cost function is designed that reflects the local prediction errors of the state and the measurement;and 3) The local estimate is first obtained by minimizing the MEEF-based cost function through a fixed-point iteration and then updated by using the edge measuring information. Finally, simulation experiments with three scenarios are carried out on the IEEE 14-bus system to illustrate the validity of the proposed anomaly-resistant decentralized SE scheme.

关键词： Decentralized state estimation(SE) measurements with anomalies minimum error entropy unscented Kalman filter wide-area power systems

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Analysis method and experimental study of ice accumulation detection signal based on Lamb waves

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Chinese Journal of Aeronautics 2024年第8期37卷 388-403页

作者： Yanxin ZHANG hongjian ZHANG Xian YI Binrui WU Xianlei GUAN Jianjun XIONG Key Laboratory of Icing and Anti/De-icing China Aerodynamics Research and Development CenterMianyang 621000China State Key Laboratory of Aerodynamics China Aerodynamics Research and Development CenterMianyang 621000China

A quantitative identification method for in-flight icing has the capability to significantly enhance the safety of aircraft *** guided waves have the unique advantage of detecting icing in a relatively large area,but quantitative identification of ice layers is a *** this paper,a quantitative identification method of ice accumulation based on ultrasonic guided waves is ***,a simulation model for the wave dynamics of piezoelectric coupling in three dimensions is established to analyze the propagation characteristics of Lamb waves in a structure consisting of an aluminum plate and an ice *** wavelet transform method is utilized to extract the Time of Flight(ToF)or Time of Delay(ToD)of S_(0)/B_(1) mode waves,which serves as a characteristic parameter to precisely determine and assess the level of ice ***,an experimental system is developed to evaluate the feasibility of Lamb waves-based icing real-time detection in the presence of spray ***,a combination of the Hampel median filter and the moving average filter is developed to analyze ToF/ToD *** simulation results reveal a positive correlation between geometric dimensions(length,width,thickness)of the ice layer and ToF/ToD of B1 mode waves,indicating their potential as indicators for quantifying ice *** results of real-time icing detection indicate that ToF/ToD will reach greater peak values with the growth of the arbitrary-shaped ice layer until saturation to effectively predict the simulation *** study lays a foundation for the practical application of quantitative icing detection via ultrasonic guided waves.

关键词： Ice Ice accumulation Ultrasonic sensor Ultrasonic guided wave Lamb wave Wavelet transform

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Macroscopic polarization enhancement boosting piezo-photocatalytic performance via Nb-doping on B-site of Bi_(4)Ti_(3)O_(12)nanosheets

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Journal of Advanced Ceramics 2024年第4期13卷 437-446页

作者： hongjian Yu Xindong Wei Min Wang Yan Zhang Zheng Wu Fan Guo Jie Han School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid WastesNational Laboratory of Mineral MaterialsSchool of Material Sciences and TechnologyChina University of Geosciences(Beijing)Beijing 100083China School of Environmental and Chemical Engineering Xi’an Key Laboratory of Textile Chemical Engineering AuxiliariesXi'an Polytechnic UniversityXi'an 710048China

The development of a high-performance ferroelectric piezo-photocatalyst is an efficient strategy for advancing sustainability within the environmental and energy ***,a major challenge lies in the creation of a strong polarized electric field that can effectively hinder charge recombination,both within the bulk and on the surface of ***,we synthesize a series of Nb-doped Bi_(4)Ti_(3)O_(12)nanosheets via a facile one-pot hydrothermal method to achieve synergistically enhanced piezo-photocatalytic performance in CO_(2)reduction and pollutant *** optimized doped Bi_(4)Ti_(3)O_(12)demonstrates remarkable efficiency in the conversion of CO_(2)into CO,with a high production rate of 72.7μmol∙g−1∙h−1 without using co-catalysts or any sacrificial agent,surpassing the performance of unmodified Bi_(4)Ti_(3)O_(12)by up to 4.69 ***,our catalyst demonstrates ultra-fast piezo-photocatalytic degradation of organic pollutant Rhodamine B(RhB)at low concentrations and exceptional piezo-photocatalytic activity at high concentrations,outperforming most previously reported state-of-the-art *** systematic corroboration of catalyst characterization and experimental analysis reveals that the synergistic effect arises from the amplified macroscopic polarization induced by lattice distortion caused by the larger Nb ions,thereby improving piezo-photocatalytic *** research thus offers valuable insights into the direct design and fabrication of versatile catalytic systems,with applications spanning CO_(2)valorization and beyond.

关键词： CO_(2)reduction dye degradation piezo-photocatalysis Nb-doped Bi_(4)Ti_(3)O_(12) macroscopic polarization regulation

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Near-field wideband beam training for ELAA with uniform circular array

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Science China(Information Sciences) 2024年第6期67卷 370-383页

作者： Yuhao CHEN Linglong dai Department of Electronic Engineering Tsinghua UniversityBeijing National Research Center for Information Science and Technology (BNRist)

Extremely large-scale antenna array(ELAA) at millimeter wave(mmWave) and Terahertz(THz)band has been considered a key technology for combating high attenuation in high-frequency bands in future6G communications. Uniform circular arrays(UCAs) have attracted much attention because of their ability to provide flat beamforming gain at all angles. To realize efficient beamforming, beam training is widely used to acquire channel state information. However, with a large antenna number, the beam training overhead in ELAA systems becomes overwhelming. Moreover, with a large bandwidth, the beam defocus effect severely degrades beam training accuracy. To address these issues, this paper proposes a frequency-dependent focusing(FDF)-based beam training scheme to realize effective beam training in near-field wideband ELAA systems with UCA. Specifically, we first analyze the FDF property of UCA, where signals at different subcarriers can simultaneously focus on different distances. Then, by exploiting the FDF property to search different distances using different subcarriers simultaneously, we design a hierarchical codebook and propose an FDFbased beam training scheme. To reveal the effectiveness of the proposed scheme, we compare its necessary beam training overhead with that of existing schemes. Finally, the simulation results demonstrate that the proposed scheme can achieve accurate beam training in near-field wideband UCA systems with a low beam training overhead.

关键词： extremely large-scale antenna array (ELAA) uniform circular array (UCA) near-field wideband beam training

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Arbuscular mycorrhizal fungi inoculation and exogenous indole-3-acetic acid application induce antioxidant defense response to alleviate cadmium toxicity in Broussonetia papyrifera

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Pedosphere 2024年第2期34卷 447-459页

作者： Xue LI Jingwei LIANG hongjian WEI Yuxuan KUANG Hui CHEN Ming TANG Wentao HU State Key Laboratory of Conservation and Utilization of Subtropical Agro-Bioresources Guangdong Laboratory for Lingnan Modern AgricultureGuangdong Key Laboratory for Innovative Development and Utilization of Forest Plant GermplasmCollege of Forestry and Landscape ArchitectureSouth China Agricultural UniversityGuangzhou 510642China

Cadmium(Cd)contamination in soil poses a huge threat to plants even at low concentrations;Broussonetia papyrifera has great potential in remediation of soil heavy metal ***,whether exogenous indole-3-acetic acid(IAA)application and arbuscular mycorrhizal fungi(AMF)have synergistic effects on Cd tolerance of *** remains *** investigate the effects of AMF inoculation and IAA application on the tolerance of *** to Cd stress,two experiments were conducted:the first to investigate the effect of AMF(Rhizophagus irregularis)inoculation on the tolerance of *** to Cd stress and the second to investigate the combined effects of AMF inoculation and IAA application on the tolerance of *** to Cd *** including endogenous hormone concentration,antioxidant defense response,malondialdehyde(MDA)content,and gene expression related to antioxidant enzyme system and hormone were *** results indicated that AMF alleviated Cd toxicity of *** by reducing MDA content and improving antioxidant enzyme activities and Cd absorption ***,the combination of AMF inoculation and IAA application had a synergetic effect on the tolerance of *** to Cd stress through upregulating BpAUX1 and BpAUX2,which might contribute to root growth and root xylem synthesis,and by upregulating BpSOD2 and BpPOD34 to enhance the antioxidant enzyme *** work provides a new insight into the application of IAA in the remediation of soil Cd pollution by mycorrhizal plants.

关键词： enzyme activity geneexpression heavy metal phytoremediation remediation Rhizophagus irregularis soil cadmium pollution stress tolerance

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