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Journal of materials Science & Technology 2022年第35期130卷 219-226页

作者： Yuzhen Wang Xuanyi Yuan Yongge Cao chaoyang ma Songshan Lake materials Laboratory Dongguan 523808China Department of Physics Renmin University of ChinaBeijing 100872China Beijing National Laboratory for Condensed matter Physics and Institute of Physics Chinese Academy of SciencesBeijing 100190China

With the rapid development of science and technology,the high-security-level anti-counterfeiting technique is essential for ensuring property or information *** this work,we prepared micron NaYTiO_(4):Bi/Er(NYT:Bi/Er) phosphors with integrating up-conversion(UC) photoluminescence,downshifting(DS) emission,phosphorescence and photochromism(PC) performances for advanced multiple anti-counterfeiting *** to the abundant energy levels of Er^(3+)ions,the UC and DS luminescence behaviors are ***,the yellow-green emission of Er^(3+)ions can be observed upon 980 nm excitation,and the bright green emission is demonstrated under 281 or 254 nm excitation due to the energy transitions of Er^(3+)ions and the energy transfer process from Bi^(3+)to Er^(3+)***,the introduction of Bi^(3+)ions generates defect levels in the matrix and thus leads to ***,the repeatable PC performance could be triggered by the 365 nm irradiation and vanished with 450 nm illumination or thermal *** verify the practical usability of NYT:Bi/Er phosphors on anti-counterfeiting applications,some experiments are designed and successfully *** is believed that the NYT:Bi/Er phosphors can be a promising candidate for high-security-level multiple anti-counterfeiting.

关键词： Anti-counterfeiting Up-conversion Down shifting Phosphorescence Photochromism NaYTiO4 Bi/Er

Acupoint combinations used for treatment of Alzheimer's disease: A data mining analysis

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Journal of Traditional Chinese Medicine 2018年第6期38卷 943-952页

作者： Yu Chaochao Wang Li Kong Lihong Shen Feng ma chaoyang Du Yanjun Zhou Hua College of Acupuncture and Orthopedics Hubei University of Chinese MedicineWuhan 430061China Hubei Provincial Collaborative Innovation Center of Preventive Treatment by Acupuncture and Moxibustion Wuhan 430061China Department of Rehabilitation Wuhan Central Hospital Affiliated to Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430014China

OBJECTIVE: To identify the acupoint combinations used in the treatment of Alzheimer's disease(AD).METHODS: The clinical literature regarding acupuncture and moxibustion for AD was searched and collected from databases including Chinese Biomedical Medicine, China National Knowledge Infrastructure, Wanfang Database and PubMed. The database of acupuncture and moxibustion prescriptions for AD was established by using Excel software so as to conduct the descriptive analysis, association analysis on the ***: Baihui(GV 20), Sishencong(EX-HN 1),Shenmen(HT 7), Zusanli(ST 36), Neiguan(PC 6),Fengchi(GB 20), Taixi(KI 3), Dazhui(GV 14), Shenshu(BL 23), Sanyinjiao(SP 6), Shenting(GV 24), Fenglong(ST 40), Xuanzhong(GB 39), Shuigou(GV 26)and Taichong(LR 3) were of higher frequency in the treatment of AD with acupnucture and moxibustion. Most acupoints were selected from the Governor Vessel. The commonly used acupoints were located on the head, face, neck and lower limbs. The combination of the local acupoints with the distal ones was predominated. The crossing points among the specific points presented the advantage in the treatment. The association analysis indicated that the correlation among Fengchi(GB 20)-Baihui(GV 20) was the strongest, followed by combinations of Dazhui(GV 14)-Baihui(GV 20), Shenshu(BL 23)-Baihui(GV 20) and Neiguan(PC 6)-Baihui(GV 20) and indicated the common rules of the clinical acupoint selection and combination for ***: Our findings provide a reference for acupoints selection and combination for AD in clinical acupuncture practice.

关键词： Alzheimer disease Acupuncture points Clinical application Data mining

Large transverse thermoelectric figure of merit in a topological Dirac semimetal

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Science China(Physics,Mechanics & Astronomy) 2020年第3期63卷 82-88页

作者： JunSen Xiang SiLe Hu Meng Lyu WenLiang Zhu chaoyang ma ZiYu Chen Frank Steglich GenFu Chen PeiJie Sun Beijing National Laboratory for Condensed matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China Department of Physics Key Laboratory of Micro-Nano Measurement-Manipulation and PhysicsBeihang UniversityBeijing 100191China University of Chinese Academy of Sciences Beijing 100049China max Planck Institute for Chemical Physics of Solids Dresden 01187Germany Songshan Lake materials Laboratory Dongguan 523808China

The Seebeck effect encounters a few fundamental constraints hindering its thermoelectric(TE)conversion *** notably,there are the charge compensation of electrons and holes that diminishes this effect,and the Wiedemann-Franz(WF)law that makes independent optimization of the corresponding electrical and thermal conductivities ***,we demonstrate that in the topological Dirac semimetal Cd3As2 the Nernst effect,i.e.,the transverse counterpart of the Seebeck effect,can generate a large TE figure of merit *** room temperature,zNT≈0.5 in a small field of 2 T and it significantly surmounts its longitudinal counterpart for any field.A large Nernst effect is generically expected in topological semimetals,benefiting from both the bipolar transport of compensated electrons and holes and their high *** this case,heat and charge transport are orthogonal,i.e.,not intertwined by the WF law *** importantly,further optimization of zNT by tuning the Fermi level to the Dirac node can be anticipated due to not only the enhanced bipolar transport,but also the anomalous Nernst effect arising from a pronounced Berry curvature.A combination of the topologically trivial and nontrivial advantages promises to open a new avenue towards high-efficient transverse thermoelectricity.

关键词： Dirac semimetal Cd3As2 Nernst effect transverse thermoelectricity

Different processing methods and pharmacological effects of Atractylodis Rhizoma

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Chinese Journal of Natural Medicines 2024年第8期22卷 756-768页

作者： GUO Dongmei XU Kang WAN Qianyun YU Songyang ma chaoyang ZHANG Baohui LIU Yanju QU Linghang College of Pharmacy Hubei University of Chinese MedicineWuhan 430065China Center for Hubei TCM Processing Technology Engineering Wuhan 430065China Hubei Shizhen Laboratory Wuhan 430065China

Atractylodis Rhizoma,a traditional Chinese medicine with an extensive history of treating gastrointestinal disorders and other diseases,undergoes various processing methods in China to enhance its therapeutic efficacy for specific ***,a comprehensive report detailing the changes in chemical composition and pharmacological effects due to these processing methods is currently *** article provides a systematic review of the commonly employed processing techniques for Atractylodis Rhizoma,including raw Atractylodis Rhizoma(SCZ),bran-fried Atractylodis Rhizoma(FCZ),deep-fried Atractylodis Rhizoma(JCZ),and rice water-processed Atractylodis Rhizoma(MCZ).It examines the alterations in chemical constituents and pharmacological activities resulting from these processes and elucidates the mechanisms of action of the primary components in the various processed forms of Atractylodis Rhizoma in the treatment of gastrointestinal diseases.

关键词： Atractylodis Rhizoma Processing method Pharmacological effect Change in chemical composition Gastrointestinal disease

形变热处理调控哈氏合金C276的晶界特征分布

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金属加工(热加工) 2025年第2期 105-111页

作者：马朝阳张晓峰刘廷光杨光昌北京科技大学国家材料服役安全科学中心北京100083 北京科技大学土木与资源工程学院北京100083

哈氏合金C276为层错能较低的面心立方金属材料,适用于晶界工程技术,有可能通过控制晶界网络结构来进一步提高其抗晶间腐蚀性能。基于晶界工程技术理念,研究了通过形变热处理(TMP)来调控哈氏合金C276的晶界特征分布的工艺方法。结果显示... 详细信息

哈氏合金C276为层错能较低的面心立方金属材料,适用于晶界工程技术,有可能通过控制晶界网络结构来进一步提高其抗晶间腐蚀性能。基于晶界工程技术理念,研究了通过形变热处理(TMP)来调控哈氏合金C276的晶界特征分布的工艺方法。结果显示:经过3%~7%冷轧和1150℃保温10min处理后,C276合金中的低ΣCSL晶界比例达到70%以上,其中主要是Σ3晶界(孪晶界),形成了“由互为Σ3n取向关系的晶粒”构成的大尺寸的晶粒团簇,平均晶粒团簇尺寸达到110μm以上,获得了较好的晶界工程处理效果。

关键词：哈氏合金C276 形变热处理重位点阵晶界 Σ3晶界晶粒团簇

Synthesis of ECG ((-)-epicatechin gallate) acylated derivatives as new inhibitors of α-amylase and their mechanism on delaying starch digestion

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Food Bioscience 2023年第2期52卷 1018-1027页

作者： Shan Wang Chao Jiang Huijuan Jing Xiaojing Du Song Zhu Hongxin Wang chaoyang ma State Key Laboratory of Food Science and Technology Jiangnan UniversityWuxiJiangsu214122China School of Food Science and Technology Jiangnan UniversityWuxiJiangsu214122China International Joint Laboratory on Food Safety Jiangnan UniversityWuxiJiangsu214122China

(-)-Epicatechin gallate(ECG),as a naturalα-amylase inhibitor,has received extensive ***,poor liposolubility of ECG limits its *** this study,lipophilic derivatives of ECG(1A-ECG,2A-ECG,1B-ECG,and 2B-ECG)were synthesized by Lipozyme TLIM(Thennomyces lanuginosus)and their mechanism on delaying starch digestion was *** results showed that the conversion of ECG exceeded 70%under optimal ***,compared with ECG,the inhibitory activities of ECG derivatives onα-amylase decreased,while the inhibitory activity of 1A-ECG onα-amylase *** the main force between ECG and 1A-ECG withα-amylase was induced by hydrogen bond,hydrophobic interaction was the main force between other derivatives withα-***,the addition of four ECG derivatives can effectively reduce the proportion of rapidly digestible starch,and delay the digestion of *** study may expand the applications of ECG and provide a theoretical basis for 1A-ECG to delay the digestion of starch.

关键词： ECG derivatives α-Amylase Fluorescence quenching Molecular docking Simulated digestion

Superconductivity at the Normal Metal/Dirac Semimetal Cd3As2 Interface

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Chinese Physics Letters 2020年第7期37卷 107-110页

作者： Shuai Zhang Yiyan Wang chaoyang ma Wenliang Zhu Zhian Ren Lei Shan Genfu Chen Institute of Physics and Beijing National Laboratory for Condensed matter Physics Chinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China Songshan Lake materials Laboratory Dongguan 523808China Key Laboratory of Structure and Functional Regulation of Hybrid materials of Ministry of Education Institutes of Physical Science and Information TechnologyAnhui UniversityHefei 230601China

We investigate the interface between a three-dimensional Dirac semimetal Cd3As2 and a normal metal via softpoint contact spectroscopy *** superconducting gap features were detected below 3.8 K and 7.1 K in the case of Cd3As2 single crystals sputter-coated with the Pt and Au films,respectively,in the differential conductance dI/dV-V plots of the point *** the applied magnetic field increased,the drop in the zerobias contact resistance shifted toward lower *** topologically non-trivial band structure of Cd3As2 is considered to play a crucial role in inducing the *** from realizing superconductivity in topological materials,our creative approach can be used to investigate possible topological superconductivity and exhibits a high application potential in electronic devices.

关键词： Superconductivity superconductivity topological

Multifaceted regulation of chiroptical properties and self-assembly behaviors of chiral fluorescent polymers

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Aggregate 2024年第6期5卷 435-446页

作者： Youling He Junqian Zhang chaoyang ma Junkai Liu Jingjing Guo Ting Han Rongrong Hu Bing Shi Li Ben Zhong Tang Center for AIE Research Shenzhen Key Laboratory of Polymer Science and TechnologyGuangdong Research Center for Interfacial Engineering of Functional MaterialsGuangdong Provincial Key Laboratory of New Energy Materials Service SafetyCollege of Materials Science and EngineeringShenzhen UniversityShenzhenGuangdongChina College of Physics and Optoelectronic Engineering Shenzhen UniversityShenzhenGuangdongChina State Key Laboratory of Luminescent materials and Devices Guangdong Provincial Key Laboratory of Luminescence from Molecular AggregatesSouth China University of TechnologyGuangzhouGuangdongChina Key Laboratory of New Lithium-Ion Battery and Mesoporous material College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhenGuangdongChina Department of Chemistry Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and ReconstructionThe Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina School of Chemistry Chemical Engineering and BiotechnologyNanyang Technological University21 Nanyang LinkNanyangSingapore School of Science and Engineering Shenzhen Institute of Aggregate Science and TechnologyThe Chinese University of Hong KongShenzhen(CUHK-Shenzhen)ShenzhenGuangdongChina

The multifaceted regulation of the chiroptical properties and self-assembly behaviors of chiral fluorescent polymers is of great significance yet remains challenging to ***,a series of novel salen-based chiral fluorescent polymers with aggregation-induced emission and varied substitution manners were facilely and efficiently *** factors were systematically investigated on the chiroptical properties and self-assembly performance of these polymers,which include molecular structures,solvent environments,metal coordination,and liquid crystal(LC)*** change in the solvent composition can lead to diverse assembly morphologies of all these chiral polymers,from single-handed helical fibers,helical toroids or loops,to spherical structures,consequently leading to an aggregation-reduced circular dichroism(CD)*** polymers bearing salen units show highly selective and reversible coordination with Zn^(2+)and can also induce multiple responses in the absorption,luminescence,CD,and circularly polarized luminescence(CPL)of these chiral fluorescent polymers via a coordination-and dissociation-initiated self-assembly ***,a small amount of the chiral fluorescent polymer in can induce achiral nematic 4-cyano-4′-n-pentylbiphenyl(5CB)to form ordered chiral nematic LC phase with significant improvement in their CD and CPL *** absolute absorption and luminescent dissymmetry factors of the resulting supramolecular assemblies can reach the order of 10^(−1).

关键词： aggregation-induced emission chirality circularly polarized luminescence fluorescent polymers selfassembly

magnetotransport Properties of a Nodal Line Semimetal TiSi

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Chinese Physics Letters 2018年第11期35卷 66-69页

作者： Moran Gao Junbao He Wenliang Zhu Shuai Zhang Xinmin Wang Jing Li chaoyang ma Hui Liang Zhian Ren Genfu Chen Institute of Physics aud Beijing National Laboratory for Condensed matter Physics Chinese Academy of Sciences Beijing 100190 School of Physical Sciences University of Chinese Academy of SciencesBeijiug 100049 College of Physics and Electronic Engineering Nanyang Normal UniversityNanyang 473061 Collaborative Innovation Center of Quantum matter Beijing 100190

We report the magnetoresistance（MR）, de Haas-van Alphen（dHvA） effect and Hall effect measurements on a single crystal of TiSi, which is predicted to be a nodal line semimetal. With application of a magnetic field, a metal-to-insulator-like transition in ρ（T） and a nonsaturating MR are observed at low temperatures. The dHvA oscillations reveal a small Fermi-surface pocket with a nontrivial Berry phase. The analysis of the nonlinear Hall resistivity shows that TiSi is a multiband system with low carrier densities and high mobilities. All these results unambiguously prove the existence of Dirac fermions in TiSi.

关键词： magnetotransport Properties of a Nodal Line Semimetal TiSi MR

Effects of Acupuncture on Alzheimer's Disease:Evidence from Neuroimaging Studies

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Effects of Acupuncture on Alzheimer's Disease:Evidence from ...