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Sustainability of the rice-crayfish farming model in waterlogged land:A case study in Qianjiang County, Hubei Province, China

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Journal of Integrative Agriculture 2022年第4期21卷 1203-1214页

作者： yuan peng-li WANG Jin-ping GUO Can GUO Zi-yuan GUO Yao CAO Cou-gui Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of Yangtze River College of Plant Science and TechnologyHuazhong Agricultural UniversityWuhan 430070P.R.China Hubei Collaborative Innovation Center for Grain Industry Yangtze UniversityJingzhou 434023P.R.China

The rice-crayfish farming model has been rapidly developed and become an economically viable method to supply food in China in recent ***,its environmental and economic sustainability has not been thoroughly *** study uses a survey in 2016 and a field experiment in 2017 in Qianjiang,Hubei Province,China to assess the relative economics of concurrent rice-wheat(RW),rice-crayfish(RC),and crayfish monoculture(CM)models in waterlogged land *** survey indicated that the RC model had a higher benefit-cost ratio(3.5:1)than the RW(2.0:1)and CM(3.1:1)models and the RC model protected farmers’enthusiasm for grain production facing unfavourable weather *** field experiment aimed to explore nitrogen management strategies in RC *** the experiment,four levels of nitrogen concentration gradient-0 kg N ha^(-1)(0 N),75 kg N ha^(-1)(75 N),150 kg N ha^(-1)(150 N)and 225 kg N ha^(-1)(225 N),were set in a 2-year-old rice-crayfish(RC2)field,an 8-year-old rice-crayfish(RC8)field,and a RWfield as a *** experiment results suggested that the peak rice yield in RW,RC2,and RC8 occurred when 225 N,150 N and 75 N were used,*** RC2 and RC8,however,residual feed-nitrogen that was not used by crayfish was utilized by rice ***,an optimal amount of nitrogen in RCfields was proposed to improve the nitrogen use efficiency and reduce environmental pollution by nitrogen *** use less nitrogen but have higher net income in RC than in RW and *** is necessary to sustainably develop integrated farming technologies(i.e.,properfield configurations for ricefields)to effectively sustain rice *** results also showed that the RC farming model was a viable diversification option for rice farmers in waterlogged land.

关键词： rice–crayfish benefit-cost ratio lodging nitrogen application

Correlation between the rock mass properties and maximum horizontal stress:A case study of overcoring stress measurements

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 39-48页

作者： peng li Meifeng Cai Shengjun Miao yuan li Yu Wang Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines University of Science and Technology BeijingBeijing 100083China State Key Laboratory of Coal Resources and Safe Mining China University of Mining and TechnologyXuzhou 221116China

Understanding the mechanical properties of the lithologies is crucial to accurately determine the horizontal stress *** investigate the correlation between the rock mass properties and maximum horizontal stress,the three-dimensional(3D)stress tensors at 89 measuring points determined using an improved overcoring technique in nine mines in China were adopted,a newly defined characteristic parameter C_(ERP)was proposed as an indicator for evaluating the structural properties of rock masses,and a fuzzy relation matrix was established using the information distribution *** results indicate that both the vertical stress and horizontal stress exhibit a good linear growth relationship with *** is no remarkable correlation between the elastic modulus,Poisson's ratio and depth,and the distribution of data points is scattered and ***,there is no obvious relationship between the rock quality designation(RQD)and *** maximum horizontal stress σ_(H) is a function of rock properties,showing a certain linear relationship with the C_(ERP)at the same *** addition,the overall change trend of σ_(H) determined by the established fuzzy identification method is to increase with the increase of C_(ERP).The fuzzy identification method also demonstrates a relatively detailed local relationship betweenσ_H and C_(ERP),and the predicted curve rises in a fluctuating way,which is in accord well with the measured stress data.

关键词： overcoring stress measurements elastic modulus Poisson's ratio rock quality designation maximum horizontal stress fuzzy identification

Differential diagnosis of Crohn’s disease and intestinal tuberculosis based on ATR-FTIR spectroscopy combined with machine learning

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World Journal of Gastroenterology 2024年第10期30卷 1377-1392页

作者： yuan-peng li Tian-Yu Lu Fu-Rong Huang Wei-Min Zhang Zhen-Qiang Chen Pei-Wen Guang liang-Yu Deng Xin-Hao Yang College of Physical Science and Technology Guangxi Normal UniversityGuilinGuangxi 541004China Department of Gastroenterology The Affiliated Hospital of South University of Science and TechnologyShenzhen 518000Guangdong ProvinceChina Department of Optoelectronic Engineering Jinan UniversityGuangzhou 510632Guangdong ProvinceChina Department of Gastroenterology Integrated Hospital of Traditional Chinese MedicineSouthern Medical UniversityGuangzhou 510632Guangdong ProvinceChina

BACKGROUND Crohn’s disease(CD)is often misdiagnosed as intestinal tuberculosis(ITB).However,the treatment and prognosis of these two diseases are dramatically ***,it is important to develop a method to identify CD and ITB with high accuracy,specificity,and *** To develop a method to identify CD and ITB with high accuracy,specificity,and *** A total of 72 paraffin wax-embedded tissue sections were pathologically and clinically diagnosed as CD or *** wax-embedded tissue sections were attached to a metal coating and measured using attenuated total reflectance fourier transform infrared spectroscopy at mid-infrared wavelengths combined with XGBoost for differential *** The results showed that the paraffin wax-embedded specimens of CD and ITB were significantly different in their spectral signals at 1074 cm^(-1) and 1234 cm^(-1) bands,and the differential diagnosis model based on spectral characteristics combined with machine learning showed accuracy,specificity,and sensitivity of 91.84%,92.59%,and 90.90%,respectively,for the differential diagnosis of CD and *** Information on the mid-infrared region can reveal the different histological components of CD and ITB at the molecular level,and spectral analysis combined with machine learning to establish a diagnostic model is expected to become a new method for the differential diagnosis of CD and ITB.

关键词： Infrared spectroscopy Machine learning Intestinal tuberculosis Crohn’s disease Differential diagnosis Inflammatory bowel disease

Peripheral mitochondrial DNA as a neuroinflammatory biomarker for major depressive disorder

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Neural Regeneration Research 2025年第6期20卷 1541-1554页

作者： Jinmei Ye Cong Duan Jiaxin Han Jinrong Chen Ning Sun yuan li Tifei yuan Daihui peng Division of Mood Disorder Shanghai Mental Health CenterShanghai Jiao Tong University School of MedicineShanghaiChina Department of Psychiatry First Hospital of Shanxi Medical UniversityTaiyuanShanxi ProvinceChina Shanghai Key Laboratory of Psychotic Disorders Brain Health InstituteNational Center for Mental DisordersShanghai Mental Health CenterShanghai Jiao Tong University School of MedicineShanghaiChina Co-Innovation Center of Neuroregeneration Nantong UniversityNantongJiangsu ProvinceChina

In the pathogenesis of major depressive disorder, chronic stress-related neuroinflammation hinders favorable prognosis and antidepressant response. Mitochondrial DNA may be an inflammatory trigger, after its release from stress-induced dysfunctional central nervous system mitochondria into peripheral circulation. This evidence supports the potential use of peripheral mitochondrial DNA as a neuroinflammatory biomarker for the diagnosis and treatment of major depressive disorder. Herein, we critically review the neuroinflammation theory in major depressive disorder, providing compelling evidence that mitochondrial DNA release acts as a critical biological substrate, and that it constitutes the neuroinflammatory disease pathway. After its release, mitochondrial DNA can be carried in the exosomes and transported to extracellular spaces in the central nervous system and peripheral circulation. Detectable exosomes render encaged mitochondrial DNA relatively stable. This mitochondrial DNA in peripheral circulation can thus be directly detected in clinical practice. These characteristics illustrate the potential for mitochondrial DNA to serve as an innovative clinical biomarker and molecular treatment target for major depressive disorder. This review also highlights the future potential value of clinical applications combining mitochondrial DNA with a panel of other biomarkers, to improve diagnostic precision in major depressive disorder.

关键词： biomarker cytokine exosomes inflammasome major depressive disorder microglia mitochondrial DNA mitochondrial dysfunction neuroinflammation Toll-like receptor

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基于迭代学习的液压角振动台控制策略研究

宇航学报 2010年第3期31卷 902-906页

作者：袁立鹏崔淑梅靳蒙哈尔滨工业大学机电工程学院哈尔滨工业大学电气工程及自动化学院哈尔滨150001

液压角振动台是十分复杂的非线性系统,应用传统的控制系统设计方法很难满足其控制要求。引入迭代学习控制算法的非线性控制策略,针对控制系统的稳定性以及迭代学习的收敛性,提出复合迭代学习控制算法,并从频域角度给出其收敛性条件。将... 详细信息

液压角振动台是十分复杂的非线性系统,应用传统的控制系统设计方法很难满足其控制要求。引入迭代学习控制算法的非线性控制策略,针对控制系统的稳定性以及迭代学习的收敛性,提出复合迭代学习控制算法,并从频域角度给出其收敛性条件。将仿真结果与实验数据进行对比分析,结果表明:系统压力12MPa条件下,采用该方法角振动台内框具有20Hz(峰—峰值0.4°)的正弦响应能力,且其相位滞后不超过10°,幅值误差不大于±10%,验证了此控制策略的有效性。该复合迭代学习控制策略不仅拓宽了系统频带,而且改善了系统输出对期望信号输入的跟踪精度,为液压角振动台的高性能实时控制开辟了新途径。

关键词：液压角振动台迭代学习非线性

Increase in the variability of terrestrial carbon uptake in response to enhanced future ENSO modulation

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 32-38页

作者： Younong li li Dan Jing peng Qidong Yang Fuqiang Yang Key Laboratory of Regional Climate-Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina Key Laboratory of Atmospheric Environment and Processes in the Boundary Layer over the Low-Latitude Plateau Region Department of Atmospheric ScienceYunnan UniversityKunmingChina

El Niño-Southern Oscillation(ENSO)is a major driver of climate change in middle and low latitudes and thus strongly influences the terrestrial carbon cycle through land-air *** the ENSO modulation and carbon flux variability are projected to increase in the future,but their connection still needs further *** investigate the impact of future ENSO modulation on carbon flux variability,this study used 10 CMIP6 earth system models to analyze ENSO modulation and carbon flux variability in middle and low latitudes,and their relationship,under different scenarios simulated by CMIP6 *** results show a high consistency in the simulations,with both ENSO modulation and carbon flux variability showing an increasing trend in the *** higher the emissions scenario,especially SSP5-8.5 compared to SSP2-4.5,the greater the increase in *** flux variability in the middle and low latitudes under SSP2-4.5 increases by 30.9%compared to historical levels during 1951-2000,while under SSP5-8.5 it increases by 58.2%.Further analysis suggests that ENSO influences mid-and low-latitude carbon flux variability primarily through *** occurrence may potentially be attributed to the increased responsiveness of gross primary productivity towards regional temperature fluctuations,combined with the intensified influence of ENSO on land surface temperatures.

关键词： Carbon variability ENSO modulation CMIP6 models

间接竞争酶联免疫吸附测定水产品中的组胺残留

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现代食品科技 2019年第7期35卷 291-295页

作者：袁利鹏刘波广东农工商职业技术学院热带农林学院

本文通过制备特异性识别组胺衍生物的多克隆抗体,建立了针对水产品中组胺的间接竞争酶联免疫吸附分析方法(ic-EliSA)。以组胺等为反应原料经三步化学反应合成组胺半抗原,采用活泼酯法将组胺半抗原分别与牛血清蛋白(BSA)和卵清蛋白(OVA)... 详细信息

本文通过制备特异性识别组胺衍生物的多克隆抗体,建立了针对水产品中组胺的间接竞争酶联免疫吸附分析方法(ic-EliSA)。以组胺等为反应原料经三步化学反应合成组胺半抗原,采用活泼酯法将组胺半抗原分别与牛血清蛋白(BSA)和卵清蛋白(OVA)偶联作为包被原和免疫原,用紫外扫描法进行鉴定,结果显示组胺半抗原与载体蛋白偶联成功。通过免疫新西兰大白兔制备组胺抗血清,采用辛酸-硫酸铵方法纯化血清获得了相应的特异性多克隆抗体。通过对icEliSA系列反应条件的摸索,确定了各组分的最适工作条件。试验结果表明:该方法对于组胺的IC50为0.91 ng/mL,与组氨酸、N-酰基组氨酸、3-甲基组胺等多种类似物及其衍生物均无交叉反应,方法特异性良好;线性检测范围为0.1~8.1 ng/mL,检出限为0.10 ng/mL;按照10、20、30 ng/g的添加量添加组胺至鱼、虾和贝类样品中,测得其回收率为98.9%~130.1%。方法检测的准确性好灵敏度高,适用于实际水产样品中组胺的检测。

关键词：组胺 N-酰化酶联免疫吸附测定水产品

Observation of acoustic hybrid topological phases induced by the p-d orbital interactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 132-139页

作者： Xiao Xiang Feng Gao Yu-Gui peng peng Wu Zong-lin li Xue-Feng Zhu School of Physics and Innovation Institute Huazhong University of Science and Technology

In spinless systems,growing attention has recently been attracted to synthetic gauge fields,which redefine the fundamental crystal symmetries by utilizing the projective algebraic ***,synthetic gauge fields have been commonly investigated in single orbital systems,and explorations on hybrid orbitals remain elusive in ***,we report the experimental observation of hybrid topological phases induced by hybrid synthetic gauge flux,which is formed by the interaction between p and d orbitals embedded in acoustic *** breaking the translation symmetries of Lxand/or Ly,we unambiguously demonstrate the first-order M?bius edge states and higher-order corner *** work establishes a platform for seeking exotic topological phases induced by hybrid-orbitals interactions and initializing the framework of hybrid-orbitalsrelated topological *** applications can be anticipated in scenarios such as high-quality sensing and robust wave trapping due to the stepwise energy distribution of the hybrid topological phase.

关键词： topological insulator synthetic gauge field projective symmetry corner states

Identification and Characterization of a T-DNA insertion mutant of AtcpSecA gene

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Identification and Characterization of a T-DNA insertion mut...