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绿豆象成虫对红豆与绿豆种子挥发物的电生理和嗅觉行为反应

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昆虫学报 2024年第1期67卷 58-67页

作者：樊楠楠黄金遇刘松张凯张仙红郑海霞山西农业大学植物保护学院太谷030801

【目的】明确红豆Vigna angularis与绿豆***种子挥发物对绿豆象Callosobruchus chinensis成虫嗅觉行为的影响,为筛选绿豆象行为调控剂奠定理论基础。【方法】利用固相微萃取(solid-phase microextraction,SPME)和气相色谱-质谱(gas chro... 详细信息

【目的】明确红豆Vigna angularis与绿豆***种子挥发物对绿豆象Callosobruchus chinensis成虫嗅觉行为的影响,为筛选绿豆象行为调控剂奠定理论基础。【方法】利用固相微萃取(solid-phase microextraction,SPME)和气相色谱-质谱(gas chromatography-mass spectrometry,GC-MS)法对绿豆晋绿1号和红豆汾小豆3号种子的挥发性化合物进行提取鉴定,通过触角电位(electroantennogram,EAG)和嗅觉选择行为反应筛选对绿豆象具有引诱活性的化合物及配方,并进行田间诱捕试验。【结果】红豆和绿豆种子中的共有挥发物有18种,主要包含醛类、酮类、烯烃类、烷烃类、醇类、酯类和芳香烃类,其中含量较高的4种物质甲基庚烯酮、己醛、正壬醛和癸醛均能引起绿豆象成虫强烈的电生理反应,而正癸烷、反式石竹烯、2-甲基萘和环己基苯等引起的反应相对微弱。嗅觉选择行为反应结果表明己醛对绿豆象雌雄成虫有明显驱避作用;而甲基庚烯酮、正壬醛和癸醛对绿豆象雌雄成虫均表现出引诱作用。多组分室内行为反应试验表明,甲基庚烯酮与正壬醛以1∶2.6的比例混配时雌雄成虫选择率达到70%以上,引诱效果相对较好;而甲基庚烯酮与癸醛以1∶3.2的比例混配时雌雄成虫选择率还未达到60%,引诱效果较差。【结论】红豆与绿豆种子挥发物中甲基庚烯酮、正壬醛和癸醛对绿豆象雌雄成虫有较好的引诱活性,可能在绿豆象嗅觉识别过程中发挥重要作用,可以用于开发该害虫的行为调控剂。

关键词：绿豆象挥发性化合物触角电位行为反应引诱剂

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绿豆象实时荧光定量PCR内参基因的筛选

环境昆虫学报 2024年第1期46卷 174-183页

作者：张敏李子鹏赵欣然张仙红郑海霞山西农业大学植物保护学院山西太谷030801

绿豆象Callosobruchus chinensis是一种世界性分布的害虫,对绿豆、豇豆等豆科作物的产量与品质造成严重影响。本研究旨在筛选出适合分析绿豆象不同发育阶段以及成虫不同组织中稳定表达的内参基因,根据绿豆象转录组测序以及相关参考文献... 详细信息

绿豆象Callosobruchus chinensis是一种世界性分布的害虫,对绿豆、豇豆等豆科作物的产量与品质造成严重影响。本研究旨在筛选出适合分析绿豆象不同发育阶段以及成虫不同组织中稳定表达的内参基因,根据绿豆象转录组测序以及相关参考文献报道,筛选出8个候选内参基因(β-Actin、β-Tubulin、α-Tubulin、AK、GAPDH、RPL40、Hsc70、eEF1-α),采用qRT-PCR技术分析在绿豆象不同发育阶段(幼虫、蛹、雌雄成虫)以及成虫不同组织中的(触角、头、腹、足、翅)各候选基因的表达量;利用GeNorm、NormFinder、BestKeeper和在线网站RefFinder并结合△Ct值评估8个候选内参基因的稳定性。结果显示,在绿豆象不同发育阶段以及成虫不同组织中,各候选内参基因Ct值和跨度均不同,表明各候选内参基因表达量存在差异。不同算法综合比较内参基因稳定性以及GeNorm软件最佳内参基因数目的分析显示,在绿豆象虫不同发育阶段中推荐采用β-Act、β-Tub作为内参基因,而在绿豆象成虫不同组织中推荐采用β-Tub、α-Tub作为内参基因,这有利于在绿豆象的基因表达研究中取得更为可靠、准确的数据。

关键词：绿豆象实时荧光定量PCR 内参基因不同发育阶段组织基因稳定表达

双歧杆菌四联活菌片联合蒙脱石散对腹泻患儿肠黏膜屏障及血清炎性因子水平的影响

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四川生理科学杂志 2024年第4期46卷 766-768,778页

作者：张云云马威郑海霞信阳职业技术学院附属医院儿科河南信阳4640001 郑州大学第一附属医院PICU 河南郑州4500002 郑州大学第一附属医院/新生儿科河南郑州4500003

目的:研究双歧杆菌四联活菌片+蒙脱石散对腹泻患儿肠黏膜屏障及血清炎性因子水平的影响。方法:随机数字表法将该院(2022年3月至2023年3月)确诊的204例腹泻患儿分为研究组、参照组,各102例。参照组行蒙脱石散治疗,研究组在其基础上行双... 详细信息

目的:研究双歧杆菌四联活菌片+蒙脱石散对腹泻患儿肠黏膜屏障及血清炎性因子水平的影响。方法:随机数字表法将该院(2022年3月至2023年3月)确诊的204例腹泻患儿分为研究组、参照组,各102例。参照组行蒙脱石散治疗,研究组在其基础上行双歧杆菌四联活菌片治疗。比较两组临床疗效、肠黏膜屏障功能指标、肿瘤坏死因子-α(Tumor necrosis factor-α,TNF-α)、血管活性肠肽(Vasoactive intestinal polypeptide,VIP)、C反应蛋白(C-reactive protein,CRP)、胃动素(Motilin,MTL)、白细胞介素-10(Interleukin-10,IL-10)、生长抑素(Somatostatin,SS)、γ干扰素(Interferon-γ,IFN-γ)、不良反应发生率。结果:研究组总有效率高于参照组(P0.05)。结论:联合治疗方案疗效显著,可有效改善患儿肠道黏膜,减少炎症反应,且不良反应少,安全性高。

关键词：双歧杆菌四联活菌片蒙脱石散腹泻患儿疗效

Toughening mechanisms of a high-strength acicular ferrite steel heavy plate

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International Journal of Minerals,Metallurgy and Materials 2010年第5期17卷 567-572页

作者： Zhi-qiang Cao Yan-ping Bao zheng-hai xia Deng Luo Ai-min Guo Kai-ming Wu Engineering Research Institute University of Science and Technology Beijing Beijing 100083 China Research ＆ Development Center Xiangtan Iron and Steel Co. Ltd. Xiangtan 411101 China Hubei Province Key Laboratory for Systems Science on Metallurgical Processing Wuhan University of Science and Technology Wuhan 430081 China

An ultra-low carbon acicular ferrite steel heavy plate was obtained with an advanced thermo-mechanical control process-relaxed precipitation controlled transformation （TMCP-RPC） at xiangtan Steel, Valin Group. The heavy plate has a tensile strength of approximately 600 MPa with a lower yield ratio. The impact toughness of the heavy plate achieves 280 J at ？40°C. The fine-grained mixed microstructures of the heavy plate mainly consist of acicular ferrite, granular bainite, and polygonal ferrite. The high strength and excellent toughness of the heavy plate are attributed to the formation of acicular ferrite microstructure. The prevention of blocks of martensite/retained austenite （M/A） and the higher cleanness are also responsible for the superior toughness.

关键词： high-strength steel microstructure mechanical properties acicular ferrite

Attraction of bruchid beetles Callosobruchus chinensis (L.) (Coleoptera: Bruchidae) to host plant volatiles

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Journal of Integrative Agriculture 2020年第12期19卷 3035-3044页

作者： WANG Hong-min BAI Peng-hua ZHANG Jing ZHANG Xue-min HUI Qin zheng hai-xia ZHANG xian-hong College of Agricultural Economics and Management Shanxi Agricultural UniversityTaigu 030801P.R.China College of Plant Protection Shanxi Agricultural UniversityTaigu 030801P.R.China Institute of Plant Protection Tianjin Academy of Agricultural SciencesTianjin 300384P.R.China

Host-plant volatiles play an important role as cues for herbivores in search of resources, mates and oviposition sites in complex environments. Plant volatile-based attractants can be developed for pest monitoring and control. Previously, we indicated that mated female adults of Callosobruchus chinensis showed choice preference behavior toward 2-hexenal and benzaldehyde. Our objective here was to investigate the synergistic effect of host-derived attractive volatiles in attracting C. chinensis under laboratory and field conditions in Shanxi Province, China. We hypothesized that the ratio and concentration of volatiles derived from Vigna radiata play critical roles for C. chinensis in locating this host. Therefore, we collected and identified the volatiles of mungbean by using headspace collection and GC-MS. The effectiveness of different ratios and concentrations of two compounds (2-hexenal and benzaldehyde) that elicit C. chinensis searching behavior were examined in Y-tube olfactometer assays. The combination of 300 μg μL^–1 2-hexenal and 180 μg μL^–1 benzaldehyde loadings exhibited a synergistic effect on attracting C. chinensis (82.35%). Compared to control traps, the adults were significantly attracted to traps baited with blends, and more attraction to females than males was found for blend traps in the field experiments. Our results suggest that blends of this specific concentration and ratio of benzaldehyde and 2-hexenal can be used in traps as attractants for C. chinensis monitoring and control in the field.

关键词： Callosobruchus chinensis plant volatiles synergistic effect olfactometer attractant

Occurrence of HTO and NE-OBT in soil in the vicinity of the Qinshan Nuclear Power Plant

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Nuclear Science and Techniques 2016年第4期27卷 1-6页

作者： lin du qin zhang zheng-hai xia yu-hua ma ling wang lai-lai qin ke deng sheng-wei wu guang-hua wang wei liu Shanghai Institute of Applied Physics Chinese Academy of Science Shanghai 201800 China University of Chinese Academy of Science Beijing 100049China CNNC Nuclear Power Operations Management Co. Ltd Haiyan 314300 China Shanghai Tech University Shanghai 201210 China

In this study, concentrations of tritiated water(HTO) and non-exchangeable organically bound tritium(NE-OBT) and the NE-OBT/HTO ratios were determined in soil around Qinshan Nuclear Power Plant(NPP), Zhejiang, China, and their vertical profile and spatial distribution were investigated. Results showed variations in both the HTO and NE-OBT concentrations in the vertical profile. The HTO concentrations generally decreased firstly and then increased with the increasing depths, but the trend was not significant. The NE-OBT concentrations in the surface soils(0–5 cm) were considerably lower than those in the deep soils(5–25 cm) at all the sites. The NE-OBT/HTO ratios also show a variable vertical profile, initially increasing and then decreasing with increasing soil *** the HTO and NE-OBT concentrations decreased with the increasing distance to the HWRs in deep soil layers(5–25 cm), revealing that the released tritium from the NPP affected the spatial distribution.

关键词：土壤水秦山核电站空间分布土层深度秦山核电厂 HTO 水浓度氚浓度

Nuclei-rich galvanizing strategy for suppressing zinc dendrite growth

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Rare Metals 2024年第8期43卷 4016-4018页

作者： hai-xia Wu Kai-Lu Guo College of Chemistry and Chemical Engineering Henan Key Laboratory of Function-Oriented Porous MaterialsLuoyang Normal UniversityLuoyang 471934China

The uncontrolled growth of zinc dendrites on zinc anode hinders the application of zinc ion *** solve this problem,Lu's group proposed a nuclei-rich galvanizing strategy for suppressing the zinc dendrite *** allows the nuclei-rich zinc electrode to cycle steadily for1200 h and have a high Coulombic efficiency of 99.7%at15 mA·cm^(-2)with a deposited amount of 10 mAh·cm^(-2).Moreover,the Zn-MnO_(2) battery with a low N/P ratio of 1.9exhibited sustained cycling life.

关键词： cycling sustained battery

Zeolite polymer membrane as protective interface for Mg battery

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Rare Metals 2024年第9期43卷 4636-4638页

作者： hai-xia Wu Kai-Lu Guo College of Chemistry and Chemical Engineering Henan Key Laboratory of Function-Oriented Porous MaterialsLuoyang Normal UniversityLuoyang 471934China

Excessive electrolyte decomposition seriously determines the performance of high-voltage Mg batteries. In Nazar's work, the strategy using a zeolite polymer membrane as a protective interface was proposed to restrain the electrolyte decomposition. This strategy could boost Mg plating/stripping performance up to 6000 h in zeolite/Mg|zeolite/Mg symmetric cells and 91%capacity retention in zeolite/Mg||Mo_(3)S_(4)battery after 200 *** storage devices have been intensively explored because of their important roles in our daily lives [1D3].

关键词： zeolite interface electrolyte

Adaptive Trajectory Tracking Control for Nonholonomic Wheeled Mobile Robots:A Barrier Function Sliding Mode Approach

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IEEE/CAA Journal of Automatica Sinica 2024年第4期11卷 1007-1021页

作者： Yunjun zheng Jinchuan zheng Ke Shao Han Zhao Hao Xie hai Wang the School of Mechanical Engineering Hefei University of TechnologyHefei 230009China the School of Science Computing and Engineering TechnologiesSwinburne University of TechnologyHawthorn VIC 3122Australia the School of Civil Aviation Northwestern Polytechnical UniversityXi’an 710072China the Shanghai Aerospace Control Technology Institute Shanghai 201109 the School of Automation Science and Electrical Engineering Beihang UniversityBeijing 100191China the College of Science HealthEngineering and EducationMurdoch UniversityPerth WA6150Australia

The trajectory tracking control performance of nonholonomic wheeled mobile robots(NWMRs)is subject to nonholonomic constraints,system uncertainties,and external *** paper proposes a barrier function-based adaptive sliding mode control(BFASMC)method to provide high-precision,fast-response performance and robustness for *** with the conventional adaptive sliding mode control,the proposed control strategy can guarantee that the sliding mode variables converge to a predefined neighborhood of origin with a predefined reaching time independent of the prior knowledge of the uncertainties and disturbances *** advantage of the proposed algorithm is that the control gains can be adaptively adjusted to follow the disturbances amplitudes thanks to the barrier *** benefit is that the overestimation of control gain can be eliminated,resulting in chattering ***,a modified barrier function-like control gain is employed to prevent the input saturation problem due to the physical limit of the *** stability analysis and comparative experiments demonstrate that the proposed BFASMC can ensure the prespecified convergence performance of the NWMR system output variables and strong robustness against uncertainties/disturbances.

关键词： Adaptive sliding mode barrier function nonholonomic wheeled mobile robot(NWMR) trajectory tracking control