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Agricultural Sciences in China 2010年第6期9卷 799-805页

作者： WANG Xiao-li WANG Yu-qian TAO yue-yue FENG ke College of Environmental Science and Engineering Yangzhou University Yangzhou 225009 P.R. China

Nitrate uptake characteristics and ammonium effects on nitrate uptake were compared between upland rice （Brazilian upland rice） and paddy rice （Wuyujing 3 and Yangdao 6） through the glass microelectrode technique and the concentration gradient method of uptake *** indicated that nitrate uptake by rice seedlings and ammonium effects were depending on membrane potential of root *** upland rice and paddy rice presented obviously different *** all cultivars,the nitrate treatments induced rapid depolarization and then slow repolarization of membrane potential in root epidermal cells,and even hyperpolarization was observed when nitrate concentration was *** membrane potential of epidermal cells in Brazilian upland rice roots was larger and its response to NO3- was bigger than those of two paddy rice *** of membrane potential was amplified when ammonium was simultaneously added with nitrate into the measure medium,but repolarization was reduced,even *** upland rice seedlings had high Vmax of nitrate uptake and low Km,furthermore,Vmax and Km were little affected by ammonium,but Vmax of Wuyujing 3 was reduced ***,inhibition of NH4＋ differed obviously between upland rice and paddy rice.

关键词： nitrate uptake membrane potential ammonium upland rice paddy rice

A search for massive young stellar objects with 98 CH_3OH maser sources

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Research in Astronomy and Astrophysics 2010年第1期10卷 67-82页

作者： Tie Liu yue-Fang Wu ke Wang Department of Astronomy Peking University Beijing 100871 China

Using the 13.7 m telescope of the Purple Mountain Observatory （PMO）, a survey of the 3 = 1 - 0 lines of CO and its isotopes was carried out on 98 methanol maser sources in January 2008. Eighty-five sources have infrared counterparts within one arcmin. In the survey, except for 43 sources showing complex or multiple-peak profiles, almost all the ^13CO line profiles of the other 55 sources have large line widths of 4.5km s^-1 on average and are usually asymmetric. Fifty corresponding Infrared Astronomical Satellite （IRAS） sources of these 55 sources have Lbdl larger than 10^3 L⊙, which can be identified as possible high-mass young stellar sources. Statistics show that the ^13CO line widths correlate with the bolometric luminosity of the associated IRAS sources. Here, we also report the mapping results of two sources; IRAS 06117＋1350 and IRAS 07299-1651. Two cores were found in IRAS 06117＋1350 and one core was detected in IRAS 07299-1651. The northwest core in IRAS 06117＋1350 and the core in IRAS 07299-1651 can be identified as precursors of UC HII regions or high-mass protostellar objects （HMPOs）. The southeast core of IRAS 06117＋1350 has no infrared counterpart, seeming to be at a younger stage than the pre-UC HII phase.

关键词： stars formation -- ISM clouds -- ISM methanol maser

Study on the operational safety of high-speed trains exposed to stochastic winds

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Acta Mechanica Sinica 2014年第3期30卷 351-360页

作者： Meng-Ge Yu Ji-Ye Zhang ke-yue Zhang Wei-Hua Zhang State key laboratory of Traction Power Southwest Jiaotong University Emei Campus of Southwest Jiaotong University

The characteristic wind curve （CWC） was com- monly used in the previous work to evaluate the operational safety of the high-speed trains exposed to crosswinds. How- ever, the CWC only provide the dividing line between safety state and failure state of high-speed trains, which can not evaluate the risk of derailment of high-speed trains when ex- posed to natural winds. In the present paper, a more realistic approach taking into account the stochastic characteristics of natural winds is proposed, which can give a reasonable and effective assessment of the operational safety of high-speed trains under stochastic winds. In this approach, the longitudi- nal and lateral components of stochastic winds are simulated based on the Cooper theory and harmonic superposition. An algorithm is set up for calculating the unsteady aerody- namic forces （moments） of the high-speed trains exposed to stochastic winds. A multi-body dynamic model of the rail vehicle is established to compute the vehicle system dynamic response subjected to the unsteady aerodynamic forces （mo- ments） input. Then the statistical method is used to get the mean characteristic wind curve （MCWC） and spread range of the high-speed trains exposed to stochastic winds. It is found that the CWC provided by the previous analyticalmethod produces over-conservative limits. The methodol- ogy proposed in the present paper can provide more signif- icant reference for the safety operation of high-speed trains exposed to stochastic winds.

关键词： High-speed trains Stochastic winds Unsteadyaerodynamic forces Mean characteristic wind curve

Coupling Mechanism between Tamm Plasmon Polaritons and Monolayer WS_(2) Embedded in Metal/Dielectric Bragg Reflector Hybrid Architecture

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Journal of Wuhan University of Technology(Materials Science) 2021年第6期36卷 865-870页

作者： JIA Guangyi yue ke YANG Wenxin HUANG Zhenxian LIANG Qiqi LI Yin School of Science Tianjin University of CommerceTianjin 300134China

To reveal and utilize the interaction between Tamm plasmon polaritons(TPPs)and two-dimensional materials are promising for exploiting next-generation optoelectronic ***,the coupling mechanism between metal TPPs and monolayer WS_(2) along with its differences from that between metal TPPs and graphene was studied in detail by using the transfer matrix *** experimental results show that it is difficult to excite TPPs at the boundary between monolayer WS_(2) and dielectric Bragg reflector(DBR)such that the strong coupling mainly stems from the interaction between metal TPPs and exciton in monolayer WS_(2).However,the coupling in graphene/DBR/metal hybrid structure derives from the interaction between two different TPP resonance ***,evolutions of Rabi splitting with various structural parameters including spacer thickness,incident angle and DBR period greatly differ from those observed in graphene/DBR/metal hybrid *** addition,the discrepancies induced via metal Ag and Au films as well as the possible influence mechanism were also discussed.

关键词： Tamm plasmon polaritons monolayer WS_(2) Rabi splitting coupling mechanism

Dual-channel tunable near-infrared absorption enhancement with graphene induced by coupled modes of topological interface states

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Chinese Physics B 2022年第8期31卷 645-650页

作者： Zeng-Ping Su Tong-Tong Wei yue-ke Wang Optical Information Science and Technology Department Jiangnan UniversityWuxi 214122China Optoelectronic Engineering and Technology Research Center Jiangnan UniversityWuxi 214122China

The dual-channel nearly perfect absorption is realized by the coupled modes of topological interface states(TIS) in the near-infrared range. An all-dielectric layered heterostructure composed of photonic crystals(Ph C)/graphene/Ph C/graphene/Ph C on Ga As substrate is proposed to excite the TIS at the interface of adjacent Ph C with opposite topological properties. Based on finite element method(FEM) and transfer matrix method(TMM), the dualchannel absorption can be modulated by the periodic number of middle Ph C, Fermi level of graphene, and angle of incident light(TE and TM polarizations). Especially, by fine-tuning the Fermi level of graphene around 0.4 e V, the absorption of both channels can be switched rapidly and synchronously. This design is hopefully integrated into silicon-based chips to control light.

关键词： one-dimensional photonic crystals graphene topological interface states

Rh(Ⅱ) carbene S-H insertion into H_2S via the stepwise mechanism

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Chinese Chemical Letters 2007年第1期18卷 107-110页

作者： Zhen Feng Liu Xian Fang yue Qiang Wei ke Li Han State key Laboratory of Molecular Reaction Dynamics~ Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China

The mechanism of Rh（Ⅱ） carbene S-H insertion into H2S in gas phase has been studied by B3LYP functional. Calculation results showed that the Rh（Ⅱ） carbene S-H insertion into H2S took only stepwise channels and n... 详细信息

关键词： Sulfonium ylides 1,2-Hydrogen shift Density functional calculations Dirhodium(Ⅱ) carbene

Computed tomography-guided chemical renal sympathetic nerve modulation in the treatment of resistant hypertension: A case report

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World Journal of Clinical Cases 2021年第32期9卷 9970-9976页

作者： Ge Luo Jian-Jun Zhu Ming Yao ke-yue Xie Department of Anesthesiology and Pain The Affiliated Hospital of Jiaxing UniversityJiaxing 314000Zhejiang ProvinceChina

BACKGROUND Resistant hypertension(RH)has always been a difficult problem in clinical diagnosis and *** present,there is no recognized safe and effective minimally invasive *** SUMMARY An 80-year-old woman was admitted to hospital due to trigeminal neuralgia(TN).The patient had a history of RH for more than 10 years and her blood pressure(BP)was not *** the treatment for TN,we decided to perform chemical renal sympathetic denervation with ethanol in the Pain Department of our *** year after the operation,she stopped taking antihypertensive drugs,and her BP was satisfactorily controlled within 4 years after *** Computed tomography-guided chemical renal sympathetic modulation may be a feasible method for the treatment of RH.

关键词： Resistant hypertension Renal sympathetic denervation Ethanol Case report

不同施肥模式对大豆生长季土壤有效氮供给的影响

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核农学报 2025年第2期39卷 391-403页

作者：丁世杰黄绍敏张水清郭斗斗宋晓张珂珂岳克郭腾飞河南省农业科学院植物营养与资源环境研究所河南郑州450002 信阳市农业科学院河南信阳464000

为探究施肥模式对潮土区大豆生长季土壤有效氮供给的影响,本研究基于33年长期定位施肥试验,选取4种处理:不施肥(CK)、施氮磷钾化肥(NPK)、氮磷钾化肥+秸秆还田(SNPK)与氮磷钾化肥+有机肥(MNPK),测定分析大豆生长季内土壤铵态氮(NH_(4)^(... 详细信息

为探究施肥模式对潮土区大豆生长季土壤有效氮供给的影响,本研究基于33年长期定位施肥试验,选取4种处理:不施肥(CK)、施氮磷钾化肥(NPK)、氮磷钾化肥+秸秆还田(SNPK)与氮磷钾化肥+有机肥(MNPK),测定分析大豆生长季内土壤铵态氮(NH_(4)^(+)-N)、硝态氮(NO_(3)^(-)-N)、微生物量氮、可溶性有机氮含量的变化动态,以及参与土壤氮素转化的有机氮矿化酶活性、氨化作用强度与硝化潜势。结果表明,化肥与秸秆或有机肥配施可提高土壤全氮、有机碳、微生物量碳和可溶性有机碳含量,这对土壤脲酶、酰胺酶、蛋白酶和N-乙酰-β-D-葡萄糖苷酶活性及氨化作用强度和硝化潜势的提升有不同程度的促进作用。土壤NH_(4)^(+)-N含量与脲酶和蛋白酶活性呈极显著正相关,与酰胺酶活性呈显著正相关;NO_(3)^(-)-N含量与氨化作用强度、硝化潜势呈极显著正相关。SNPK、MNPK处理下的土壤微生物量氮和可溶性有机氮含量均高于NPK、CK处理。潮土可溶性有机氮含量与大豆地上部氮素吸收呈极显著正相关,并最终影响大豆生长;成熟期SNPK、MNPK处理下的大豆地上部生物量均高于CK、NPK处理。综上所述,化肥与秸秆或有机肥配施可通过提高全氮、有机碳和活性有机碳含量正向调控土壤氮素转化微生物作用强度与酶活性,提高土壤有效氮供给能力,促进大豆生长。本试验结果可为潮土区合理施肥提供理论依据。

关键词：施肥模式有效氮有机氮矿化酶氨化作用强度硝化潜势

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长期施肥下土壤氮素指标与小麦/玉米产量关系研究

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核农学报 2025年第1期39卷 157-169页

作者：丁世杰黄绍敏张水清郭斗斗宋晓张珂珂岳克郭腾飞河南省农业科学院植物营养与资源环境研究所河南郑州450002 信阳市农业科学院河南信阳464000

为明确施肥对典型潮土区土壤氮素指标的影响以及氮素指标与作物产量的量化关系,本研究利用长期定位施肥试验系统评估施肥对土壤全氮、碱解氮、酸解有机氮组分、微生物量氮含量的影响,并进一步定量分析氮素指标与小麦、玉米产量间的关系... 详细信息

为明确施肥对典型潮土区土壤氮素指标的影响以及氮素指标与作物产量的量化关系,本研究利用长期定位施肥试验系统评估施肥对土壤全氮、碱解氮、酸解有机氮组分、微生物量氮含量的影响,并进一步定量分析氮素指标与小麦、玉米产量间的关系。结果表明,与单施化肥或不施肥相比,长期化肥与秸秆或有机肥配施在显著提高土壤全氮含量的同时,对碱解氮、酸解总氮、酸解铵态氮、氨基酸态氮与微生物量氮含量的提高也有明显的促进作用。除土壤全氮外的其他氮素指标含量在高量化肥-有机肥配施、化肥-秸秆还田和常量化肥-有机肥配施处理间无显著差异。土壤全氮、微生物量氮和碱解氮含量是对作物产量影响程度相对较大的氮素指标。土壤全氮含量每增加0.1 g·kg^(−1),小麦和玉米分别增产822.7和968.2 kg·hm^(-2)。土微生物量氮与碱解氮含量每增加1 mg·kg^(−1),小麦增产195.2与58.1 kg·hm^(-2);玉米增产189.9与79.1 kg·hm^(-2)。酸解总氮与氨基酸态氮含量对小麦产量也有显著影响,酸解总氮与氨基酸态氮含量每增加1 mg·kg^(−1),小麦分别增产15.8与30.0 kg·hm^(-2)。综上所述,化肥与秸秆或有机肥配施可提高潮土氮素库容与供氮能力。小麦、玉米产量随土壤全氮、微生物量氮与碱解氮含量的提高呈线性增长,小麦产量与酸解总氮和氨基酸态氮含量呈显著正相关。本研究为典型潮土区地力培育与粮食丰产提供了理论依据和技术支撑。

关键词：长期定位试验施肥土壤氮素指标作物产量

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Precipitates and alloying elements distribution in nearαtitanium alloy Ti65

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Journal of Materials Science & Technology 2020年第1期36卷 91-96页

作者： ke yue Jianrong Liu Haijun Zhang Hui Yu Yuanyuan Song Qingmiao Hu Qingjiang Wang Rui Yang Institute of Metal Research Chinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaHefei 230026China School of Materials Science and Engineering Northeastern UniversityShenyang 110819China School of Information Science and Engineering Shenyang University of TechnologyShenyang 110870China

Precipitates,including silicides and Ti3 Al(α2)phase,and alloying elements distribution in a near a titanium alloy Ti65(Ti-5.8 Al-4.0 Sn-3.5 Zr-0.5 Mo-0.3 Nb-1.0 Ta-0.4 Si-0.8 W-0.05 C)after solution treatment and aging process were characterized by using transmission electron microscopy(TEM)and atom probe tomography(APT).Quantitative composition analysis and TEM observation indicate that the silicides fit to(Ti,Zr)6(Sl,Sn)*** exhibits aβ-stabilizing effect in near a titanium alloys but is weaker than otherβstabilizing *** enriching tendency of the alloying elements in the retainedβphase is in the order of Zr

关键词： Atom probe tomography Titanium alloys Precipitation First-principles calculation Alloying elements distribution