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秸秆还田模式对农田土壤碳库特性及产量的影响

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自然资源学报 2017年第5期32卷 755-764页

作者：王海候金梅娟陆长婴施林林周新伟沈明星季国军张永春江苏太湖地区农业科学研究所江苏苏州215155 江苏省农业科学院资源与环境研究所农业部江苏耕地保育科学观测实验站南京210014 农业部苏州水稻土生态环境重点野外科学观测试验站江苏苏州215155

为探明南方稻麦两熟制农田秸秆还田模式对土壤总有机碳、活性有机碳、碳库管理指数和稻麦产量的影响,论文通过8 a的水稻-小麦轮作田间定位试验,设置了4个秸秆还田模式处理:秸秆不还田(CK)、秸秆稻麦季均还田(RW)、仅麦秸稻季还田(W)、... 详细信息

为探明南方稻麦两熟制农田秸秆还田模式对土壤总有机碳、活性有机碳、碳库管理指数和稻麦产量的影响,论文通过8 a的水稻-小麦轮作田间定位试验,设置了4个秸秆还田模式处理:秸秆不还田(CK)、秸秆稻麦季均还田(RW)、仅麦秸稻季还田(W)、仅稻秸麦季还田(R)。结果表明,与CK处理相比,秸秆还田显著提高了0~20 cm土壤的总有机碳、活性有机碳、稳定态有机碳(P0.05),RW处理的活性有机碳、碳库活度指数、碳库管理指数与R处理无显著差异性(P>0.05),显著大于W处理(P0.05),显著大于W处理;活性有机碳、碳库管理指数与水稻产量均值呈极显著相关(P0.05);上述结果表明,与稻麦两季还田模式相比,南方稻麦两熟制农田实施仅稻秆麦季还田模式,并不影响作物稳产性与土壤地力的提升。

关键词：土壤秸秆还田模式活性有机碳碳库管理指数产量稻麦两熟制

栽培措施对双低油菜苏油4号产量和品质的影响

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上海农业学报 2008年第4期24卷 55-59页

作者：孙华沈明星蒋鹤云许才康张建栋江苏太湖地区农业科学研究所苏州215155

种植密度、施肥水平、肥料运筹等栽培措施对苏油4号产量和品质影响的研究结果表明:(1)移栽密度7 500株/667 m2、施纯氮22 kg/667 m2和基、腊、苔花肥配比4∶2∶4是苏油4号获得高产的适宜栽培措施,其产量达到207.33 kg/667 m2。(2)影响... 详细信息

种植密度、施肥水平、肥料运筹等栽培措施对苏油4号产量和品质影响的研究结果表明:(1)移栽密度7 500株/667 m2、施纯氮22 kg/667 m2和基、腊、苔花肥配比4∶2∶4是苏油4号获得高产的适宜栽培措施,其产量达到207.33 kg/667 m2。(2)影响产量的主导因子是施肥水平,其次是种植密度和肥料运筹。(3)随密度和施氮量增加,单位面积有效角果数呈增多趋势,但在低密度条件下,受肥料运筹影响;千粒重随密度的增加而减少,随施氮量的增加而增加,肥料运筹对千粒重的影响不显著。施肥水平对每角粒数起正向作用。(4)苏油4号高产栽培的主攻重点是单位面积有效角果数。(5)随着施氮量的增加,含油率、蛋白质含量降低;就肥料运筹而言,随着基、腊肥的增加,苔花肥的减少,含油率、蛋白质含量增加。

关键词：双低油菜苏油4号栽培措施种植密度氮肥用量肥料运筹品质产量

Morphology engineering of ZnO micro/nanostructures under mild conditions for optoelectronic application

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 498-503页

作者： Liang Chu Haoyu shen Hudie Wei Hongyu Chen Guoqiang Ma Wensheng Yan Institute of Carbon Neutrality and New Energy&School of Electronics and Information Hangzhou Dianzi UniversityHangzhou 310018China School of Applied Physics and Materials Wuyi UniversityJiangmen 529020China

Zinc oxide(ZnO)serves as a crucial functional semiconductor with a wide direct bandgap of approximately 3.37 *** reaction is commonly used in the synthesis of ZnO micro/nanostructures,given its low cost,simplicity,and easy ***,ZnO morphology engineering has become desirable through the alteration of minor conditions in the reaction process,particularly at room *** this work,ZnO micro/nanostructures were synthesized in a solution by varying the amounts of the ammonia added at low temperatures(including room temperature).The formation of Zn^(2+)complexes by ammonia in the precursor regulated the reaction rate of the morphology engineering of ZnO,which resulted in various structures,such as nanoparticles,nanosheets,microflowers,and single ***,the obtained ZnO was used in the optoelectronic application of ultraviolet detectors.

关键词： morphology engineering low temperature ZnO nanosheets microflowers ultraviolet detector

The personal protective equipment(PPE)based on individual combat:A systematic review and trend analysis

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Defence Technology（防务技术） 2023年第10期28卷 195-221页

作者： Qian-ran Hu xing-yu shen Xin-ming Qian Guang-yan Huang Meng-qi Yuan State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijing100081China Chongqing Innovation Center Beijing Institute of TechnologyChongqing400044China

With the development of ordnance technology,the survival and safety of individual combatants in hightech warfare are under serious threat,and the Personal Protective Equipment(PPE),as an important guarantee to reduce casualties and maintain military combat effectiveness,is widely *** paper systematically reviewed various PPE based on individual combat through literature research and comprehensive discussion,and introduced in detail the latest application progress of PPE in terms of material and technology from three aspects:individual integrated protection system,traditional protection equipment,and intelligent protection equipment,respectively,and discussed in depth the functional improvement and optimization status brought by advanced technology for PPE,focusing on the achievements of individual equipment technology ***,the problems and technical bottlenecks in the development of PPE were analyzed and summarized,and the development trend of PPE were pointed *** results of the review will provide a forward-looking reference for the current development of individual PPE,and are important guidance for the design and technological innovation of advanced equipment based on the future technological battlefield.

关键词： Personal protective equipment(PPE) Individual combat Material and structure Equipment application Intelligent devices Wearable technology

Donut and spheroid mitochondria: eating, regenerating or trash them out?

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Life Metabolism 2023年第3期2卷 2-4页

作者： Wen-xing Ding Han-ming shen Department of Pharmacology Toxicology and TherapeuticsUniversity of Kansas Medical CenterKansas CityKS 66160United States Division of Gastroenterology Hepatology and MobilityDepartment of Internal MedicineUniversity of Kansas Medical CenterKansas CityKS 66160United States Faculty of Health Sciences Ministry of Education Frontiers Science Center for Precision OncologyUniversity of MacaoMacao 999078China

In response to stress,mitochondrion undergoes constant morphological changes,including the formation of donut and spheroid mitochondria,and both are believed to be implicated in its biological *** are critical for cellular metabolic homeostasis and cell survival and death in eukaryotic *** are dynamic organelles that constantly undergo fission and *** homeostasis is tightly regulated by mitophagy for the removal of damaged or excess mitochondria and by mitochondria biogenies of new *** can also undergo other morphological transformation,such as formation of donut-like mitochondria or mitochondrial spheroids,and can also be secreted into the extracellular *** we discuss the mechanistic insights and physiological relevance of the donut-like mitochondria or mitochondrial spheroids and the secretion of mitochondria in cell biology.

关键词： functions insight excess

[Solid-phase extraction coupled with high performance liquid chromatography-triple quadrupole mass spectrometry for simultaneous determination of seven coumarins in water samples from drinking water treatment plants]

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Se pu = Chinese journal of chromatography 2025年第1期43卷 78-86页

作者： Wen-Mei Jiao Jing-ming Yang Ce Xu Fu-Kang Gao Lu-Yao shen Yu-Bo Yuan Zhi-Fen Guo Guang Huang School of Life Sciences and Chemical Engineering Jiangsu Second Normal University Nanjing 211200 China. School of Stomatology Nanjing Medical University Nanjing 210029 China. School of Public Health Nanjing Medical University Nanjing 211166 China. Key Laboratory of Modern Toxicology Ministry of Education School of Public Health Nanjing Medical University Nanjing 211166 China.

Chlorinated coumarins, which are as cytotoxic as highly toxic halobenzoquinones toward CHO-K1 cells, have recently been identified as disinfection byproducts in drinking water disinfection processes. Therefore, detecting coumarins in water samples collected at various stages from drinking water treatment plants helps assess the formation of chlorinated coumarins in drinking water. Hence, a simple, rapid, accurate, and sensitive method for quantifying coumarins in water samples is required. In this study, a method was developed based on solid-phase extraction coupled with high performance liquid chromatography-triple-quadrupole mass spectrometry for analyzing seven coumarins in water samples from drinking water treatment plants, including 6,7-dihydroxycoumarin, 7-hydroxycoumarin, 6-hydroxy-4-methylcoumarin, 8-chloro-7-hydroxycoumarin, coumarin, 7-chloro-6-hydroxy-4-methylcoumarin, and 3,8-dichloro-7-hydroxycoumarin. Sample pretreatment involved solid-phase extraction using HLB columns, followed by elution with water and methanol, each containing 0.25% formic acid. The extracted solution was separated via gradient elution using a Phenomenex Luna C18 column (100 mm×2.0 mm, 3 mm) with 0.1% formic acid aqueous solution and methanol as the mobile phases, with analytes detected by triple-quadrupole mass spectrometry equipped with electrospray ionization source in multiple reaction monitoring mode. The matrix effect, precision, and accuracy of the developed method were investigated using raw and treated water as matrices. Matrix effects of 0.84-1.12 were recorded for the detection of 6,7-dihydroxycoumarin, 7-hydroxycoumarin, 6-hydroxy-4-methylcoumarin, and coumarin in raw water, while values of 0.67-0.70 were recorded for 8-chloro-7-hydroxycoumarin, 7-chloro-6-hydroxy-4-methylcoumarin, and 3,8-dichloro-7-hydroxycoumarin in finished water. The three chlorinated coumarins exhibited matrix effects above 0.80 after the finished water matrix had been diluted four times. These re

关键词： coumarins disinfection byproducts drinking water high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) solid-phase extraction (SPE)

Merging bound states in the continuum in an open acoustic resonator

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 124-131页

作者： Lujun Huang Bin Jia Artem S.Pilipchuk Sibo Huang Chen shen Almas F.Sadreev Yong Li Andrey E.Miroshnichenko School of Physics and Electronic Sciences East China Normal University Institute of Acoustics Tongji University L.V.Kirensky Institute of Physics Department of Mechanical Engineering Rowan University School of Engineering and Technology University of New South Wales at Canberra

Bound states in the continuum （BICs） are perfectly localized resonances despite embedding in the continuum ***,an isolated BIC is very sensitive to the structure ***,we report merging acoustic BICs in a single open resonator,robust against the structure *** find that both symmetry-protected BIC and Friedrich-Wintgen BIC are sustained in a single coupled waveguide-resonator *** varying the height and length of the resonator,these two BICs move toward each other and merge into a single one at a critical *** to an individual BIC,the merged BIC is robust against fabrication error because its Q-factor is proportional to ΔL-4,whereΔL embodies the structure *** essence of this extraordinary phenomenon is perfectly explained by the two-and three-level approximations of the effective nonHermitian ***,we present direct experimental demonstrations of the moving and merging of BICs in a coupled 3D waveguide-resonator,which are evidenced by the vanishing of the linewidth of Fano resonance in the transmission *** results may find exciting applications in designing high-quality acoustic sources,sensors and filters.

关键词： acoustic resonances bound state in the continuum high-Q resonances

2005-2017年甘肃省陇南市流行性乙型脑炎流行病学特征分析

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现代预防医学 2019年第5期46卷 789-793页

作者：王小军蔡玉成申明星刘海军王海军贾续珍杨海鹏陇南市疾病预防控制中心

目的分析陇南市流行性乙型脑炎的流行病学特征,为制定乙脑预防控制策略和措施提供依据。方法采用描述流行病学方法对2005-2017年甘肃省陇南市乙脑资料进行分析,描述病例在时间、空间和人群分布特征。结果 2005-2017年陇南市共报告乙脑病... 详细信息

目的分析陇南市流行性乙型脑炎的流行病学特征,为制定乙脑预防控制策略和措施提供依据。方法采用描述流行病学方法对2005-2017年甘肃省陇南市乙脑资料进行分析,描述病例在时间、空间和人群分布特征。结果 2005-2017年陇南市共报告乙脑病例374例,死亡29例,病死率为7.8%,年平均报告发病率为1.1/10万(0.08～3.8/10万);病例集中在7-9月(95%),8月为发病高峰;病例集中在农村,农村病例占91%(339/374),报告病例数前五位的地区为武都区(103例)、礼县(72例)、西和县(67例)、文县(48例)和成县(28例),共占比65%(243/374);病例年龄中位数为21岁(1月龄～83岁),2005-2008年165例病例年龄中位数为12岁(3月龄～79岁),2009-2017年209例病例年龄中位数为30岁(1月龄～83岁),分布位置不同(Z=5.2,P<0.001);实施乙脑疫苗免疫接种前后14岁以下儿童病例构成比分别为59%和26%(■=17,P<0.001);病例中男性占50%(188/374),45～59岁年龄组女性发病率1.67/10万,男性年平均发病率0.77/10万(■=9.36,P<0.001);2009-2017年农民构成比为59%,高于2005-2008年的31%(■=11,P<0.001);三带喙库蚊在猪圈中的密度最高,在农户也有三带喙库蚊活动,城市居民区未监测到三带喙库蚊。结论 2008年将乙脑疫苗纳入扩大免疫规划之后,疫苗对儿童乙脑的发病起到了很好的控制作用,高发人群呈现向高年龄组推移的现象。2017年乙脑报告病例数明显升高,病例以高年龄组为主,病死率高,建议开展进一步调查以明确高发原因,重点关注成人和农村地区乙脑防控工作。

关键词：流行性乙型脑炎流行病学特征防控策略

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不同腐熟度鸡粪在蔬菜上施用的农学效应研究

上海农业学报 2014年第3期30卷 10-15页

作者：周新伟常志州沈明星陆长婴王海候施林林陈凤生马艳苏州市农业科学院江苏太湖地区农业科学研究所苏州215155 农业部苏州水稻土生态环境重点野外科学观测试验站苏州215155 江苏省农业科学院农业资源与环境研究所南京210014

采用鸡粪与稻壳为原料进行堆肥试验,研究了鸡粪堆腐进程中温度、pH、电导率(EC)、C、N、P等动态变化规律及不同堆腐时间(15 d、25 d、35 d、50 d)堆肥对小白菜、黄瓜的农学效应。结果表明:随着堆腐时间的延长,鸡粪堆肥的腐熟程度不断提... 详细信息

采用鸡粪与稻壳为原料进行堆肥试验,研究了鸡粪堆腐进程中温度、pH、电导率(EC)、C、N、P等动态变化规律及不同堆腐时间(15 d、25 d、35 d、50 d)堆肥对小白菜、黄瓜的农学效应。结果表明:随着堆腐时间的延长,鸡粪堆肥的腐熟程度不断提高,堆腐50 d时达到基本腐熟。小白菜田间单位面积出苗数随堆腐时间延长而提高,但处理间未达显著差异(P>0.05);不同堆腐程度鸡粪堆肥对移栽黄瓜成活率、小白菜与黄瓜单株地上地下部分生物量、株高、根长、叶片叶绿素SPAD值均无不良影响。腐熟度理化指标与蔬菜生物指标的相关关系分析表明,堆肥理化指标间、理化指标与发芽指数间的相关关系密切,但堆肥腐熟度理化指标与蔬菜田间生物指标间关系不密切。不同腐熟程度鸡粪堆肥对蔬菜播种出苗与成苗的影响不一,低腐熟度鸡粪对蔬菜播种出苗可能产生影响,对移栽苗影响不明显。

关键词：鸡粪腐熟度蔬菜农学效应