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Two New Multi-component BKP Hierarchies

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Communications in Theoretical Physics 2009年第2期51卷 193-199页

作者： WU Hong-Xia liu xiao-jun ZENG Yun-Bo Department of Mathematics School of Science Jimei University Xiamen China361021 Department of Mathematics China Agricultural University Beijing China100083 Department of Mathematical Sciences Tsinghua University Beijing China100084

We firstly propose two kinds of new multi-component BKP （mcBKP） hierarchy based on the eigenfunction symmetry reduction and nonstandard reduction, respectively. The first one contains two types of BKP equation with self-consistent sources whose Lax representations are presented. The two mcBKP hierarchies both admit reductions to the k-constrained BKP hierarchy and to integrable （1＋1）-dimensional hierarchy with self-consistent sources, which include two types of SK equation with self-consistent sources and of hi-directional SK equations with self-consistent

关键词： multi-component BKP hierarchy BKP equation with self-consistent sources κ-constrained BKPhierarchy n-reduction of mcBKP Lax representation

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表面活性剂基生物小分子电化学传感进展

化学研究与应用 2024年第8期36卷 1681-1688页

作者：陈庭飞张顺润刘晓军朱春楠刘超郑冬云中南民族大学生物医学工程学院湖北武汉430074 中南民族大学脑认知国家民委重点实验室湖北武汉430074 医学信息分析及肿瘤诊疗湖北省重点实验室湖北武汉430074

实现对生物小分子的灵敏高效检测具有重要生物医学意义。已提出的检测方法中,电化学传感法因具有操作简单、成本低、响应快、灵敏度高等突出优势而备受青睐。独特的结构和性质,使表面活性剂在生物小分子的电化学传感领域应用广泛。通过... 详细信息

实现对生物小分子的灵敏高效检测具有重要生物医学意义。已提出的检测方法中,电化学传感法因具有操作简单、成本低、响应快、灵敏度高等突出优势而备受青睐。独特的结构和性质,使表面活性剂在生物小分子的电化学传感领域应用广泛。通过对已报道工作的对比分析,本文对表面活性剂在生物小分子电化学检测中的应用方式进行了归纳总结、对其可能的电催化作用机制进行了探讨,并对其应用发展趋势进行了展望。本综述有望为后续相关研究工作的开展提供一些新思路。

关键词：表面活性剂生物小分子修饰电极电催化检测

Solidification of loess using microbial induced carbonate precipitation

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Journal of Mountain Science 2021年第1期18卷 265-274页

作者： liu xiao-jun FAN Jin-yue YU Jing GAO Xin Shaanxi Key Laboratory of Geotechnical and Underground Space Engineering College of Civil EngineeringXi'an University of Architecture and TechnologyXi'an 710055China College of Civil Engineering Xi'an University of Architecture and TechnologyXi'an 710055China

Microbial-induced carbonate precipitation(MICP)is a relatively innovative and environmentally-friendly soil reinforcement technology,primarily used on sand,but its application in loess has rarely been *** paper explores the viability of the MICP technique for improving the engineering properties of typical *** pasteurii was used to trigger carbonate *** such as reaction temperature,p H of the media,and the inoculation ratio were adopted to determine the optimum *** concentrations of Sporosarcina pasteurii and cementation reagent were selected for combination to treat the loess samples with a selfdesigned vacuum test *** unconfined compressive strength and calcium carbonate content of the treated samples were tested and Scanning Electron Microscopy(SEM)was carried out to evaluate the improving *** results showed that the optimum conditions are reaction temperature of 30℃,p H of the media of 9,a higher inoculation ratio can produce higher enzyme activity and monomer enzyme *** engineering properties of the MICP-treated loess are significantly *** obtained unconfined compressive strength increases nearly 4 times when the OD600 is 1.5 and cementation reagent concentration is 1 mol/*** test results of calcium carbonate content are consistent with unconfined compressive ***,the microstructure of loess samples was quantitatively analyzed by Pore(Particle)and cracks analysis system(PCAS).It was showed that MICP has a great influence on the surface porosity,followed by the pore fractal dimension and the probability entropy,but has little influence on the pore average form factor.

关键词： Loess solidification MICP Unconfined compressivestrength Calciumcarbonate Microstructure

身痛逐瘀颗粒对类风湿性关节炎大鼠炎症及JAK/STAT信号通路的影响

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广州中医药大学学报 2024年第6期41卷 1567-1573页

作者：肖雨晨苗倩倩王珑刘小军朱露西安新润药业有限公司药物研究中心陕西西安710075

【目的】观察身痛逐瘀颗粒对类风湿性关节炎(RA)大鼠的治疗作用及机制。【方法】将60只大鼠随机取12只作为正常组,其余48只在模拟“风、寒、湿”的环境下2次免疫构建RA模型。再将全部48只造模成功的大鼠随机分为模型组,身痛逐瘀颗粒高... 详细信息

【目的】观察身痛逐瘀颗粒对类风湿性关节炎(RA)大鼠的治疗作用及机制。【方法】将60只大鼠随机取12只作为正常组,其余48只在模拟“风、寒、湿”的环境下2次免疫构建RA模型。再将全部48只造模成功的大鼠随机分为模型组,身痛逐瘀颗粒高、中、低剂量组,每组12只。对应给药21 d。苏木素-伊红(HE)染色法观察给药后大鼠踝关节滑膜组织病理学并进行评分;比较给药前后大鼠双侧踝关节、双足肿胀度;酶联免疫吸附分析(ELISA)检测给药后大鼠踝关节滑膜组织中炎症因子肿瘤坏死因子(TNF)-α、白细胞介素(IL)-1β、IL-6、干扰素(IFN)-γ含量;Western Blot法检测给药后大鼠踝关节滑膜组织Janus激酶(JAK)/信号转导子和转录激活因子(STAT)通路的蛋白表达。【结果】与正常组比较,模型组大鼠踝关节滑膜增生,软骨细胞结构紊乱,软骨腔中有大量炎细胞浸润,炎细胞浸润程度评分、骨质破坏程度评分显著增加(P<0.05),双侧踝关节、双足肿胀度增加(P<0.05),滑膜组织TNF-α、IL-1β、IL-6、IFN-γ含量,JAK1、STAT3、磷酸化STAT3(p-STAT3)、STAT5、磷酸化STAT 5(p-STAT5)蛋白表达量均显著升高(P<0.05);与模型组比较,身痛逐瘀颗粒高、中、低剂量组上述指标均得到明显改善(P<0.05)。【结论】身痛逐瘀颗粒可有效改善大鼠RA,其作用机制与抑制炎症因子及JAK/STAT信号通路活化有关。

关键词：身痛逐瘀颗粒类风湿性关节炎炎症因子 JAK/STAT信号通路大鼠

Spatial and Temporal Characteristics of Rice Potential Productivity and Potential Yield Increment in Main Production Regions of China

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Journal of Integrative Agriculture 2013年第1期12卷 45-56页

作者： JIANG xiao-jian TANG Liang liu xiao-jun CAO Wei-xing ZHU Yan National Engineering and Technology Center for Information Agriculture Ministry of Industry and Information Technology/Key Laboratory for Information AgricultureScience and Technology Department of Jiangsu Province/College of AgricultureNanjing Agricultural University

The vast area and marked variation of China make it difficult to predict the impact of climate changes on rice productivity in different ***,analyzing the spatial and temporal characteristics of rice potential productivity and predicting the possible yield increment in main rice production regions of China is important for guiding rice production and ensuring food *** meteorological data of main rice production regions from 1961 to 1970（the 1960s） and from 1996 to 2005（the 2000s） provided by 333 stations,the potential photosynthetic,photo-thermal and climatic productivities in rice crop of the 1960s and 2000s in main rice production regions of China were predicted,and differences in the spatial and temporal distribution characteristics between two decades were ***,the potential yield increment based on the high yield target and actual yield of rice in the 2000s were *** with the 1960s,the potential photosynthetic productivity of the 2000s was seen to have decreased by 5.40%,with rates in northeastern and southwestern China found to be lower than those in central and southern *** potential photo-thermal productivity was generally seen to decrease（2.56%） throughout main rice production regions,decreasing most in central and southern ***,an increase was seen in northeastern and southwestern *** potential climatic productivity was observed to be lower（7.44%） in the 2000s compared to the 1960s,but increased in parts of central and southern *** potential yield increment from the actual yield to high yield target in the 2000s were no more than 6×103 kg ha-1 and ranged from 6×103 to 12×103 kg ha-1 in most of the single-and double-cropping rice growing regions,*** yield increasing potential from the high yield target to the potential photo-thermal productivity in 2000s were less than 10×103 kg ha-1 and ranged from 10×103 to 30×103 kg ha-1 in most of the single-and double-croppi

关键词： rice photosynthetic productivity photo-thermal productivity climatic productivity yield increment spatial and temporal distribution China

Energy-efficient buffer and service rate allocation in manufacturing systems using hybrid machine learning and evolutionary algorithms

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Advances in Manufacturing 2024年第2期12卷 227-251页

作者： Si-xiao Gao Hui liu jun Ota Key Laboratory of Traffic Safety on Track of Ministry of Education Institute of Artificial Intelligence and Robotics(IAIR)School of Traffic and Transportation EngineeringCentral South UniversityChangsha410075People’s Republic of China Research into Artifacts Center for Engineering School of EngineeringThe University of TokyoTokyoJapan

Currently,simultaneous buffer and service rate allocation is a topic of interest in the optimization of manufacturing *** allocation problems have been solved previously to satisfy economic requirements;however,owing to the progress of green manufacturing,energy conservation and environmental protection have become increasingly ***,an energy-efficient approach is developed to maximize the throughput and minimize the energy consumption of manufacturing systems,subject to the total buffer capacity,total service rate,and predefined energy *** energy-efficient approach integrates the simulated annealing-non-dominated sorting genetic algorithm-II with the honey badger algorithm-histogram-based gradient boosting regression *** former algorithm searches for Pareto-optimal solutions of sufficient *** latter algorithm builds prediction models to rapidly calculate the throughput,energy consumption,and energy *** examples show that the proposed hybrid approach can achieve a better solution quality compared with previously reported ***,the prediction models can rapidly evaluate manufacturing systems with sufficient *** study benefits the multi-objective optimization of green manufacturing systems.

关键词： Energy-efficient allocation Multi-objective optimization Energy efficiency Energy consumption Machine learning

稻麦复种模式下氮肥与稻秸互作对小麦产量和N_(2)O排放影响及推荐施肥研究

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作物学报 2024年第5期50卷 1300-1311页

作者：陆汝华王文轩曹强田永超朱艳曹卫星刘小军南京农业大学国家信息农业工程技术中心/智慧农业教育部工程研究中心/农业农村部农作物系统分析与决策重点实验室/江苏省信息农业重点实验室江苏南京210095 人文与社会发展学院江苏南京210095

优化氮肥施用和秸秆还田技术为途径的农业管理措施被认为是提升农业可持续性的有效手段,然而当前关于氮肥和秸秆还田对小麦产量和N_(2)O排放影响的研究仍十分有限。为此,本研究基于2000—2022年发表的关于长江中下游流域氮肥和秸秆投入... 详细信息

优化氮肥施用和秸秆还田技术为途径的农业管理措施被认为是提升农业可持续性的有效手段,然而当前关于氮肥和秸秆还田对小麦产量和N_(2)O排放影响的研究仍十分有限。为此,本研究基于2000—2022年发表的关于长江中下游流域氮肥和秸秆投入下小麦产量和N_(2)O排放变化的文献,运用随机森林建模,定量分析氮肥和秸秆还田对小麦产量和N_(2)O排放的影响,并结合情景设置进行了特定地点的小麦产量和N_(2)O排放模拟,同时评估了碳排放强度(CEE)和净生态系统经济效益(NEEB)。结果表明,建立的区域尺度小麦产量与N_(2)O排放对氮秸互作响应的随机森林模型,验证结果R^(2)分别为0.66和0.65,RMSE分别为0.70和1.11。结果表明施氮量和土壤有机质是影响小麦产量和N_(2)O排放的重要因素。综合来看,达到最大产量所需的氮肥量为208~212 kg hm^(-2),达到最小CEE所需的氮肥量为113~130 kg hm^(-2),达到最高的NEEB所需的氮肥量为202~205 kg hm^(-2),其中在6.75 t hm^(-2)的秸秆投入下施用202 kg hm^(-2)的氮肥可以获得最高的生态收益1.37万元。优化氮肥和秸秆投入具备减少作物碳排放强度并获得最大净生态环境效益的潜力。

关键词：施氮量秸秆投入小麦 N_(2)O 排放模型推荐施肥

Influence of limited-view scanning on depth imaging of photoacoustic tomography

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Chinese Physics B 2012年第1期21卷 273-278页

作者： Wu Dan Tao Chao liu xiao-jun Wang Xue-Ding Key Laboratory of Modern Acoustics of Ministry of Education Nanjing UniversityNanjing 210093China Department of Radiology University of MichiganAnn ArborMichigan 48109USA

We study the influence of limited-view scanning on the depth imaging of photoacoustic tomography. The situation, in which absorbers are located at different depths with respect to the limited-view scanning trajectory, is called depth imaging and is investigated in this paper. The results show that limited-view scanning causes the reconstructed intensity of deep absorbers to be weaker than that of shallow ones and that deep absorbers will be invisible if the scanning range is too small. The concept of effective scanning angle is proposed to analyse that phenomenon. We find that an effective scanning angle can well predict the relationship between scanning angle and the intensity ratio of absorbers. In addition, limited-view scanning is employed to improve image quality.

关键词： photoacoustic tomography limited-view scanning depth imaging back-projection re-construction

Leaf area index based nitrogen diagnosis in irrigated lowland rice

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Journal of Integrative Agriculture 2018年第1期17卷 111-121页

作者： liu xiao-jun CAO Qiang YUAN Zhao-feng liu Xia WANG xiao-ling TIAN Yong-chao CAO Wei-xing ZHU Yan National Engineering and Technology Center for Information Agriculture Key Laboratory for Crop System Analysis and Decision Making Ministry of Agriculture/Jiangsu Key Laboratory for Information Agriculture/Jiangsu Collaborative Innovation Center forModern Crop Production/Nanjing Agricultural University Nanjing 210095 P.R. China

Leaf area index （LAI） is used for crop growth monitoring in agronomic research, and is promising to diagnose the nitrogen （N） status of crops. This study was conducted to develop appropriate LAI-based N diagnostic models in irrigated lowland rice. Four field experiments were carried out in Jiangsu Province of East China from 2009 to 2014. Different N application rates and plant densities were used to generate contrasting conditions of N availability or population densities in rice. LAI was determined by LI-3000, and estimated indirectly by LAI-2000 during vegetative growth period. Group and individual plant characters （e.g., tiller number （TN） and plant height （H）） were investigated simultaneously. Two N indicators of plant N accumulation （NA） and N nutrition index （NNI） were measured as well. A calibration equation （LAI=1.7787LAI2o00-0.8816, R2=0.870＂） was developed for LAI-2000. The linear regression analysis showed a significant relationship between NA and actual LAI （R2=0.863^＊＊）. For the NNI, the relative LAI （R2=0.808-） was a relatively unbiased variable in the regression than the LAI （R^2=0.33^＊＊）. The results were used to formulate two LAI-based N diagnostic models for irrigated lowland rice （NA=29.778LAI-5.9397; NNI=0.7705RLAI＋0.2764）. Finally, a simple LAI deterministic model was developed to estimate the actual LAI using the characters of TN and H （LAI=-0.3375（THxHx0.01）2＋3.665（TH×H×0.01）-1.8249, R2=0.875＊＊）. With these models, the N status of rice can be diagnosed conveniently in the field.

关键词： leaf area index rice LAI-2000 nitrogen diagnosis plant characters