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头痛合剂治疗紧张型头痛伴焦虑患者的临床疗效分析

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中国现代药物应用 2024年第9期18卷 33-36页

作者：李响窦向红宣乐乐东海县人民医院神经内科 222300

目的探讨紧张型头痛(TTH)伴焦虑患者采取头痛合剂治疗的临床疗效。方法选择100例TTH伴焦虑患者,以双色球法分为对照组与观察组,每组50例。对照组实施常规西医治疗,观察组实施常规西医治疗联合头痛合剂治疗。比较两组中医证候积分、临床... 详细信息

目的探讨紧张型头痛(TTH)伴焦虑患者采取头痛合剂治疗的临床疗效。方法选择100例TTH伴焦虑患者,以双色球法分为对照组与观察组,每组50例。对照组实施常规西医治疗,观察组实施常规西医治疗联合头痛合剂治疗。比较两组中医证候积分、临床疗效、负面心理情绪、生化指标[同型半胱氨酸(Hcy)、纤维蛋白原、血浆粘度、全血粘度]、头痛频率与持续时间。结果与对照组总有效率比较观察组更高,差异显著(94.00%VS 78.00%,P<0.05)。治疗后,观察组Hcy(10.85±2.95)μmol/L、纤维蛋白原(2.41±0.32)g/L、全血粘度(9.11±2.36)mPa·s、血浆粘度(1.15±0.38)mPa·s均低于对照组的(12.12±3.05)μmol/L、(3.05±0.48)g/L、(10.59±2.75)mPa·s、(1.45±0.42)mPa·s,差异显著(P<0.05)。治疗后,观察组头痛、昏蒙、面色苍白、胸胁满闷、纳呆呕恶积分分别为(0.92±0.22)、(0.82±0.15)、(0.78±0.18)、(0.85±0.21)、(0.89±0.24)分,低于对照组的(1.25±0.26)、(1.18±0.22)、(1.16±0.20)、(1.23±0.25)、(1.24±0.28)分,差异显著(P<0.05)。治疗后,观察组头痛频率低于对照组,头痛持续时间短于对照组,差异显著(P<0.05)。治疗后,观察组焦虑评分、抑郁评分低于对照组,差异显著(P<0.05)。结论TTH伴焦虑患者予以常规西医基础上联合头痛合剂治疗,能更好地缓解患者的焦虑情绪,并更好地减轻患者的头痛症状,有利于生化指标的改善,从而全面提升临床效果,值得临床应用。

关键词：紧张型头痛焦虑头痛合剂生化指标中医证候积分临床疗效

An Efficient Adaptive Hierarchical Sliding Mode Control Strategy Using Neural Networks for 3D Overhead Cranes

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International Journal of Automation and computing 2019年第5期16卷 614-627页

作者： Viet-Anh le Hai-xuan le Linh Nguyen Minh-xuan Phan Department of Automatic Control Hanoi University of Science and TechnologyHanoi 10000Vietnam Centre for Autonomous Systems University of Technology SydneyNew South Wales 2007Australia

In this paper, a new adaptive hierarchical sliding mode control scheme for a 3D overhead crane system is proposed. A controller is first designed by the use of a hierarchical structure of two first-order sliding surfaces represented by two actuated and un-actuated subsystems in the bridge crane. Parameters of the controller are then intelligently estimated, where uncertain parameters due to disturbances in the 3D overhead crane dynamic model are proposed to be represented by radial basis function networks whose weights are derived from a Lyapunov function. The proposed approach allows the crane system to be robust under uncertainty conditions in which some uncertain and unknown parameters are highly difficult to determine. Moreover, stability of the sliding surfaces is proved to be guaranteed. Effectiveness of the proposed approach is then demonstrated by implementing the algorithm in both synthetic and reallife systems, where the results obtained by our method are highly promising.

关键词： 3D overhead crane adaptive control hierarchical sliding mode control neural network radial basis function

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同位靶磁控溅射法制备Al掺杂CdSe薄膜

热加工工艺 2024年第16期53卷 159-162页

作者：何惠江宣乐毛高翔刘辉王春海陕西华秦科技实业股份有限公司陕西西安710048 西北工业大学陕西西安710072

为增加掺杂薄膜的元素均匀性,基于磁控溅射技术,设计了靶材同位共溅射制备掺杂薄膜的方法,并用于制备Al掺杂CdSe薄膜,获得了Al均匀掺杂的CdSe薄膜。结果表明:制备的薄膜为富Se状态,呈现明显的(111)择优取向。Al掺杂后的CdSe薄膜方块电阻... 详细信息

为增加掺杂薄膜的元素均匀性,基于磁控溅射技术,设计了靶材同位共溅射制备掺杂薄膜的方法,并用于制备Al掺杂CdSe薄膜,获得了Al均匀掺杂的CdSe薄膜。结果表明:制备的薄膜为富Se状态,呈现明显的(111)择优取向。Al掺杂后的CdSe薄膜方块电阻由5.2 kΩ/□升高至544.5 kΩ/□。随着Al掺杂量的增加,薄膜的方块电阻下降。当共溅射Al片为6片时,薄膜方块电阻为7.7 kΩ/□,薄膜半导体类型由p型转变为n型。掺杂薄膜体电导率分别为192.4(未掺杂)、2.01×10^(4)(Al片数1)、506.9(Al片数2)、384.8(Al片数4)、284.9 mΩ·cm(Al片数6)。掺杂薄膜样品的禁带宽度Eg分别为1.82(未掺杂)、1.97(Al片数1)、1.75(Al片数2)、1.78(Al片数4)、1.82 eV(Al片数6)。

关键词：同位靶磁控溅射 Al掺杂CdSe薄膜电学行为

ON BOUNDEDNESS PROPERTY OF SINGULAR INTEGRAL OPERATORS ASSOCIATED TO A SCHRODINGER OPERATOR IN A GENERALIZED MORREY SPACE AND APPLICATIONS

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Acta Mathematica Scientia 2020年第5期40卷 1171-1184页

作者： xuan Truong le Thanh Nhan NGUYEN Ngoc Trong NGUYEN Division of Computational Mathematics and Engineering Institute for Computational ScienceTon Due Thang UniversityHo Chi Minh CityVietnam Faculty of Mathematics and Statistics Ton Due Thang UniversityHo Chi Minh CityVietnam Department of Mathematics Ho Chi Minh City University of EducationHo Chi Minh CityVietnam Department of Primary Education Ho Chi Minh City University of EducationHo Chi Minh CityVietnam

In this paper,we provide the boundedness property of the Riesz transforms associated to the Schrodinger operator■=-Δ+V in a new weighted Morrey space which is the generalized version of many previous Morrey type *** additional potential V considered in this paper is a non-negative function satisfying the suitable reverse Holder's *** results are new and general in many cases of *** an application of the boundedness property of these singular integral operators,we obtain some regularity results of solutions to Schrodinger equations in the new Morrey space.

关键词： weighted Morrey spaces Schodinger operator riesz transforms Regularity estima tes

Necklace-like carbon nanofibers encapsulating MoO_(2) nanospheres with Mo-C bonding for stable lithium-ion storage

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稀有金属:英文版 2023年第8期42卷 2592-2600页

作者： Jing Chen xuan-le Chen Rou Lu Yong Li An-Qiang Pan School of Physics and Materials Nanchang UniversityNanchang 330031China State Key Laboratory of Powder Metallurgy School of Materials Science and EngineeringCentral South UniversityChangsha 410083China

Molybdenum dioxide has aroused a wide concern as anode material for lithium-ion batteries(LIBs)due to its high theoretical capacity and high ***,it still faces the problems of large volume changes and low electronic conductivities,which limits its practical ***,necklace-like N-doped carbon nanofibers encapsulating MoO_(2)nanospheres(MoO_(2)@NCNFs)with Mo-C bonding have been designed to address these *** rational design carbon coating structure can not only enhance the electron transfer,but also markedly strengthen structural *** expected,the as-prepared electrode showed superior lithium storage capacity,including a high specific capacity of 1120 mAh·g^(-1)at 0.1 A·g^(-1),and good rate performance of 502 mAh·g^(-1)at 4.0 A·g^(-1)and a prolonged cycling stability of 490 mAh·g^(-1)capacity retention over 3000 cycles at 4.0 A·g^(-1).

关键词： lithium bonding cycling

Investigation of KTiOPO4 nanocrystals by means of second-harmonic light emission

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Chinese Optics letters 2008年第1期6卷 64-67页

作者： Chunyuan Zhou Loc le xuan Abdallah Slablab Nicolas Sandeau Sophie Brasselet Dominique Chauvat Jean-Francois Roch Laboratoire de Photonique Quantique et Moléculaire ENS Cachan UMR CNRS 8537 61 avenue du President Wilson 94235 Cachan Cedex France

The finding of nonlinear nanometric-sized probes is of key importance for the development of nonlinear microscopy in physical as well as biological sciences. We isolate nonlinear KTiOPO4 nanocrystals and study them by second-harmonic generation microscopy （SHGM） and atomic force microscopy （AFM） independently. With both polarization analysis and defocused imaging of the emitted second harmonic field, we extract the Euler angles of the crystalline axes of a single nanocrystal. A balanced coherent optical homodyne detection shows the coherent nature of the nanocrystal nonlinear emission and allows a phase measurement of the emitted second-harmonic field. These features make the KTiOPO4 nanocrystal a good candidate for a vectorial probe of electromagnetic near fields.

关键词： KTiOPO4 谐波光发射物理学

Understanding the Activity Performance of Comets 38P/Stephan-Oterma,64P/Swift-Gehrels and C/2017 M4(ATLAS)through Broadband Photometric Observations

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Research in Astronomy and Astrophysics 2024年第8期24卷 147-156页

作者： xuan Zhang Jin-Zhong Liu le-Tian Wang Xinjiang Astronomical Observatory Chinese Academy of SciencesUrumqi 830011China

In this work,we report observations of three comets:38P/Stephan-Oterma,64P/Swift-Gehrels,and C/2017 M4(ATLAS),conducted with the Nanshan one-meter wide-field telescope in 2018 August and November,and *** extracted morphological features through image enhancement techniques and calculated the dust activity parameter,Afρ,along with dust mass loss rates and coma color indices using broadband photometric *** morphological analysis uncovered a spectrum of dust characteristics among the observed comets,ranging from a significant twisted structure in comet 38P/Stephan-Oterma’s coma to the regular coma envelope surrounding comet 64P/*** Afρvalues varied between 148.8±0.3 cm for 64P/Swift-Gehrels and1118.5±6.2 cm for C/2017 M4(ATLAS)(measured within a reference aperture radius ofρ=6″),indicating a range from moderate to high activity *** mass loss rates were estimated from 328.1 kg s^(-1)for comet 64P/Swift-Gehrels to 1395.5 kg s^(-1)for comet C/2017 M4(ATLAS).The color indices of comets 38P/Stephan-Oterma and C/2017 M4(ATLAS)closely resemble the average colors of active short-period comets and active longperiod comets,*** contrast,64P/Swift-Gehrels exhibits a significantly bluer hue than typical Jupiter family comets.

关键词： comets general-comets individual(38P/Stephan-Oterma,64P/Swift-Gehrels,C/2017 M4(ATLAS))-techniques photometric

The Impacts of Tax Procedures Reform on Business Environment in Vietnam： Achievements and Further Reforms

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Journal of Modern Accounting and Auditing 2017年第7期13卷 299-305页

作者： le xuan Truong Academy of Finance Vietnam

Tax procedures are factors that strongly affect the business environment. A simple and convenient tax procedures system will contribute to a good business environment by easing of tax returns preparation, reducing tax compliance costs, and preventing corruption. This paper examines the results and impacts of previous tax procedures reform on Vietnam＇s business environment, identifies challenges of tax procedures reform now and the coming years, and discusses areas where further reforms are needed to sustain tax revenue and reduce compliance costs including：（1） wansparent and comprehensive guidance to all tax laws and other legal tax documents; （2） widening the application of risk management in tax administration; （3） continuing simplification of tax procedures; and （4） development of IT in tax administration.

关键词： business environment compliance costs doing business reform tax procedures

A new species of Nanohyla(Anura:Microhylidae)from the lowland forests of southern Vietnam

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Zoological Research 2023年第4期44卷 732-736页

作者： Vladislav A.Gorin Alexey V.Trofimets Svetlana S.Gogoleva le xuan Dac Nikolay A.Poyarkov Department of Vertebrate Zoology Lomonosov Moscow State UniversityMoscow 119991Russia Joint Vietnam-Russia Tropical Science and Technology Research Centre Cau GiayHanoi 122000Vietnam A.N.Severtsov Institute of Ecology and Evolution Russian Academy of SciencesMoscow 119071Russia

DEAR EDITOR,We describe a new species of Nanohyla from the Song Hinh Protected Forest in Phu Yen Province,southern Vietnam,based on an integrative taxonomic *** new species represents a divergent lineage(16S rRNA gene uncorrected P-distance>5.3%),which clearly differs from any other Nanohyla species based on a series of morphological characters,most notably the presence of white spots on the top of its ***,Nanohyla albopunctata *** characterized by small body size(male snout-vent length(SVL)18.2-20.2 mm);moderately slender body habitus;rounded snout;distinct tympanum;rounded canthus rostralis;loreal region slightly concave;skin on dorsum tubercular,ventral surfaces smooth;mid-vertebral skin ridge and dorsomedial stripe absent;superciliary tubercles absent.

关键词： Morphological Vietnam slightly