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Development of aperiodic multilayer mirrors operated at W-Lβline for plasma diagnostics application

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Nuclear Science and Techniques 2023年第11期34卷 77-84页

作者： Ze‑Hua Yang jing‑Tao Zhu Zhong‑Liang Li Hong‑xin Luo Shang‑yu Si yun‑ping Zhu Li zhao Kuan Ren feng Wang Rong‑Qing Yi Shanghai Synchrotron Radiation Facility(SSRF) Shanghai Institute of Applied PhysicsChinese Academy of Sciences(CAS)Shanghai 201203China Key Laboratory of Advanced Micro‑Structured Materials Ministry of EducationSchool of Physics and EngineeringTongji UniversityShanghai 200092China State Key Laboratory of Surface Physics Department of PhysicsFudan UniversityShanghai 200438China Thin‑Film Optics Laboratory Hongce Optoelectronics LtdSuzhou 215431China Research Center of Laser Fusion China Academy of Engineering PhysicsMianyang 621900China

Multilayer interference mirrors play a pivotal role in spectroscopic diagnostic systems,which probe electron temperature and density during inertial confinement fusion *** this study,aperiodic Mo/B_(4)C multilayer mirrors of varied thick-nesses were investigated for X-ray plasma diagnostics at the 9.67-keV W-Lβ*** thickness distribution of the aperiodic multilayers was designed using the first Bragg diffraction condition and then optimized through a simplex algorithm to realize a narrow bandwidth and consistent spectral *** enhance spectral accuracy,further refinements were undertaken by matching the grazing incidence X-ray reflectivity data with actual structural parameters.X-ray reflectivity measurements from the SSRF synchrotron radiation facility on the optimized sample showed a reflectivity of 29.7±2.6%,flat-band range of 1.3 keV,and bandwidth of 1.7 keV,making it suitable for high-temperature plasma *** study explored the potential of predicting the 9.67 keV reflectivity spectrum using the fitting data from the grazing incidence X-ray reflectivity curves at 8.05 ***,the short-term thermal stability of an aperiodic multilayer was assessed using temperature-dependent in situ X-ray *** in the reflectivity spectrum during annealing were attributed to interdiffusion and interfacial *** research team recommends the aperiodic Mo/B_(4)C multilayer mirror for operations below 300℃.

关键词： X-ray multilayer mirror Aperiodic multilayer Flat response Sputtering deposition Synchrotron radiation

Investigation of potential strategies to control malt-induced premature yeast flocculation

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Systems Microbiology and Biomanufacturing 2021年第2期1卷 193-199页

作者： Li-yun Guo xin Xie nan zhao Mei Wang Zhi-ping Lin yu-Mei Song feng-Chao Jia Beijing Yan jing Brewery Company Ltd Beijing 101300China Key Laboratory of Beijing Yanjing Beer Brewing Technology Beijing 101300China Yanjing Research Center No.9Shuanghe RoadShunyi DistrictBeijing 101300China

Premature yeast flocculation(PYF)during beer fermentation is an undesired event by which yeast flocculate too early and heavily before the wort nutrition is *** PYF can be a major financial detriment to brewers,the conditions that trigger it and the chemical composition of PYF are poorly *** chromatography-mass spectrometry results from this study indicated that purified malt PYF factor consisted of numerous polysaccharides;however,no protein was *** concentrations of PYF promoted further yeast flocculation,which in turn decreased the rate of fermentation and increased acetaldehyde content of the *** factors were found to be derived primarily from malt husks and factors such as microbial content of the water used for germination,mixing malts with different PYF values,and presence of tannic acid were all found to influence the rate of yeast *** from this study may be beneficial in developing PYF prevention and control measures that can be applied to future brewing strategies.

关键词： Premature yeast flocculation Malt microbial contamination PYF factors Beer fermentation

M Dwarf catalog of LAMOST general survey data release one

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Research in Astronomy and Astrophysics 2015年第8期15卷 1182-1196页

作者： Yan-xin Guo Zhen-ping Yi A-Li Luo You-fen Wang yu Bai Hai-feng Yang Yi-Han Song Jian-Jun chen Xiao-Yan chen Fang Zuo Bing Du Jian-nan zhang Yin-Bi Li Xiao Kong Meng-xin Wang yue Wu Ke-Fei Wu Yong-Heng zhao Yong zhang Yong-Hui Hou yue-Fei Wang Ming Yang Key Laboratory of Optical Astronomy National Astronomical ObservatoriesChinese Academy of Sciences University of Chinese Academy of Sciences School of Mechanical Electical & Information EngineeringShandong University at Weihai School of Computer Science and Technology Taiyuan University of Science and Technology nanjing Institute of Astronomical Optics & Technology National Astronomical ObservatoriesChinese Academy of Sciences

We present a spectroscopic catalog of 93 619 M dwarfs from the first data release of the Large Sky Area Multi-Object Fiber Spectroscopic Telescope（LAMOST）general survey. During sample selection, M giant contamination was eliminated using2 MASS photometry and Ca H/TiO molecular indices. For each spectrum, the spectral subtype and values are provided including radial velocity, Hα equivalent width, a series of prominent molecular band indices, and the metal–sensitive parameter ζ, as well as distances and the space motions for high S/N objects. In addition, Hα emission lines are measured to examine the magnetic activity properties of M dwarfs and 7179 active ones are found. In particular, a subsample with significant variation in magnetic activity is revealed through observations from different epochs. Finally, statistical analysis for this sample is performed, including the metallicity classification, the distribution of molecular band indices and their errors.

关键词： catalogs—methods: analytical—stars: statistical—stars : late-type—stars: magnetic-activity—stars

Nearby M subdwarfs from LAMOST data release 2

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Research in Astronomy and Astrophysics 2016年第7期16卷 55-68页

作者： yu Bai A-Li Luo Georges Comte jing-Kun zhao Hai-feng Yang Yan-xin Guo You-fen Wang Yin-Bi Li Bing Du Wen Hou Xiao Kong Zhen-ping Yi Yi-Han Song Zhong-Rui Bai Jian-nan zhang Meng-xin Wang Jian-Jun chen Xiao-Yan chen Ke-Fei Wu Fang Zuo yue Wu Zi-Huang Cao Yong-Hui Hou yue-Fei Wang Yong zhang Key Laboratory of Optical Astronomy National Astronomical Observatories Chinese Academy of Sciences Beijing100012 China University of Chinese Academy of Sciences Beijing 100049 China Aix-Marseille University CNRS Institut Pytheas L.A.M. UMR 7326 13388 Marseille Cedex France School of Computer Science and Technology Taiyuan University of Science and Technology Taiyuan 030024 China School of Mechanical Electrical & Information Engineering Shandong University at Weihai Weihai 264209 China nanjing Institute of Astronomical Optics & Technology National Astronomical Observatories Chinese Academy of Sciences Nanjing 210042 China

We identify 108 M subdwarfs（sd Ms） out of more than two hundred thousand M type spectra from the second data release（DR2） of the LAMOST regular survey. This sample, among which 58 members are identified for the first time, includes 33 extreme subdwarfs（esd Ms） and 11 ultra subdwarfs（usd Ms）.The selection is based on the usual ratio of absorption depth of Ca H2, Ca H3 and TiO 5 band *** also emphasize the use of the Ca H1 band. We provide estimates of spectral subtype（SPT）, L′epine metallicity index ζ, effective temperature and [Fe/H]. Both ζ–[Fe/H] and SPT–Teff figures show reasonable consistency; compared to PHOENIX model spectra, average rounded values of [Fe/H] for sd Ms, esd Ms and usd Ms are respectively –0.5, –1 and –1.5. The photometric distances are estimated, indicating that most sources are located within 500 pc of the Sun and 350 pc of the Galactic disk. Velocities and 3D Galactic motions are also briefly discussed. Among the 108 subdwarfs, seven stars appear to be active with a significant Hα emission line. The source LAMOST J104521.52＋482823.3 is a white dwarf- M subdwarf binary, while LAMOST J123045.52＋410943.8, also active, exhibits carbon features in red.

关键词： stars late-type stars statistics subdwarfs

Research on the development methodology for clinical practice guidelines for organic integration of traditional Chinese medicine and Western medicine

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Military Medical Research 2024年第3期11卷 313-322页

作者： Ying-Hui Jin Yan-ping Wang Ying-Lan Xie Gui-Hua Tian Xiao-yu zhang nan-nan Shi Ke-Hu Yang xin Sun Yao-Long chen Da-Rong Wu xin-feng Guo Long Ge chen zhao cheng Lu Yin Jiang jing Guo Si-yu Yan Yong-Bo Wang Qiao Huang Xiang-Ying Ren Ying-yue Rao yun-yun Wang Meng-Qian yuan Xian-Tao Zeng Hong-Cai Shang Center for Evidence-Based and Translational Medicine Zhongnan Hospital of Wuhan UniversityWuhan 430071China Institute of Basic Research in Clinical Medicine China Academy of Chinese Medical SciencesBeijing 100700China China Center for Evidence Based Traditional Chinese Medicine Beijing 100029China Hubei Provincial Hospital of Traditional Chinese Medicine Wuhan 430074China Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing Dongzhimen HospitalBeijing University of Chinese MedicineBeijing 100700China Evidence-Based Medicine Center School of Basic Medical SciencesLanzhou UniversityLanzhou 730000China China Center for Evidence-Based Medicine West China Hospital of Sichuan UniversityChengdu 610041China State Key Laboratory of Dampness Syndrome of Chinese Medicine the Second Affliated Hospital of Guangzhou University of Chinese MedicineGuangzhou 510120China Evidence-based Medicine Team Guangdong Provincial Hospital of Traditional Chinese MedicineGuangzhou 510120China nanjing University of Chinese Medicine Nanjing 210023China Jiangsu Province Hospital of Chinese Medicine Nanjing 210029China

Integrated traditional Chinese medicine(TCM)and Western medicine(WM)is a new medical science grounded in the knowledge bases of both TCM and WM,which then forms a unique modern medical system in *** TCM and WM has a long history in China,and has made important achievements in the process of clinical diagnosis and ***,the methodological defects in currently published clinical practice guidelines(CPGs)limit its *** organic integration of TCM and WM is a deeper integration of TCM and *** realize the progression of"integration"to"organic integration",a targeted and standardized guideline development methodology is ***,the purpose of this study is to establish a standardized development procedure for clinical practice guidelines for the organic integration of TCM and WM to promote the systematic integration of TCM and WM research results into clinical practice guidelines in order to achieve optimal results as the whole is greater than the sum of the parts.

关键词： Methodology Traditional Chinese medicine Western medicine Organic integration Clinical practice guidelines(CPGs)

Fluorescent competitive assay for melamine using dummy molecularly imprinted polymers as antibody mimics

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Journal of Integrative Agriculture 2016年第5期15卷 1166-1177页

作者： DU xin-wei zhang Yan-xin SHE Yong-xin LIU Guang-yang zhao feng-nian WANG jing WANG Shan-shan JIN fen SHAO Hua JIN Mao-jun ZHENG Lu-fei Institute of Quality Standards and Testing Technology for Agro-Products Chinese Academy of Agricultural Sciences Beijing 100081 P.R.China Key Laboratory of Agro-product Quality and Safety Beijing 100081 PR. China School of Chemical Engineering and Technology Harbin Institute of Technology Harbin 150001 P.R. China

A fluorescent competitive assay for melamine was first developed utilizing dummy molecularly imprinted polymers（DMIPs） as artificial antibodies. This method is based on the competition between fluorescent substances and the unlabeled analyte for binding sites in synthesized DMIPs and the decreased binding of fluorescent substances to DMIPs due to increased concentrations of melamine in the solutions. DMIPs for melamine were synthesized under a hot water bath in the presence of the initiator azobisisobutyronitrile（AIBN） using 2,4-diamino-6-methyl-1,3,5-triazine（DAMT） as a dummy template, methacrylic acid（MAA） as a functional monomer, and ethylene glycol dimethacrylate（EGDMA） as a crosslinking agent. The adsorption capacity and selectivity of DMIPs for melamine were evaluated by the isothermal adsorption curve and Scatchard analysis. The evaluation results showed that the synthesized DMIPs had specific recognition sites for melamine and the maximum adsorption amount was 1 066.33 μg g^（-1）. Later, 5-（4,6-d ichlorotriazinyl） amino fluorescein（DTAF） with a triazine ring, which s lightly resembles m elamine, w as selected as the fluorescent substance. The fluorescent competitive assay using DMIPs as t he antibody mimics was finally established by selecting and optimizing the reaction solvents, DMIPs amount, DTAF concentration, and incubation time. The optimal detection system showed a linear response w ithin range of 0.05-40 mg L^（-1） and the limit of detection（LOD） was 1.23 μg L^（-1）. It was successfully applied to the detection of melamine in spiked milk samples wi th satisfactory recoveries（71.9 to 86.3%）. According to the comparative analysis, the result of optimized fluorescent competitive assay re vealed excellent agreement with the HPLC-MS/MS result for melamine.

关键词： dummy molecularly imprinted polymers melamine fluorescent competitive assay artificial antibody

Speeding up generation of photon Fock state in a superconducting circuit via counterdiabatic driving

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Chinese Physics B 2021年第4期30卷 86-91页

作者： xin-ping Dong Xiao-jing Lu Ming Li Zheng-Yin zhao Zhi-Bo feng School of Science Xuchang UniversityXuchang 461000China

Optimal creation of photon Fock states is of importance for quantum information processing and state *** an efficient strategy is presented for speeding up generation of photon Fock state in a superconducting circuit via counterdiabatic driving.A transmon qubit is dispersively coupled to a quantized electrical *** address a ∧-configuration interaction between the composite system and classical *** on two Gaussian-shaped drivings,a single-photon Fock state can be generated *** of adding an auxiliary counterdiabatic driving,our concern is to modify these two Rabi drivings in the framework of shortcut to *** an accelerated operation with high efficiency can be realized in a much shorter *** with the adiabatic counterpart,the shortcut-based operation is significantly insusceptible to decoherence *** scheme could offer a promising way to deterministically prepare photon Fock states with superconducting quantum circuits.

关键词： photon Fock state superconducting circuit counterdiabatic driving

Protective effect of paeoniflorin on H_(2)O_(2) induced Schwann cells injury based on network pharmacology and experimental validation

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Chinese Journal of Natural Medicines 2021年第2期19卷 90-99页

作者： zhang Di YANG Bing CHANG Shi-Quan MA Sheng-Suo SUN Jian-xin YI Lin LI xing SHI Hui-Mei jing Bei ZHENG Ya-Chun zhang Chun-Lan chen feng-Guo zhao Guo-ping College of Traditional Chinese Medicine Jinan UniversityGuangzhou 510630China LiWan Hospital of Traditional Chinese Medicine Guangzhou 510665China

This study was to investigate the protective effect of paeoniflorin(PF)on hydrogen peroxide-induced ***,“SMILES”of PF was searched in Pubchem and further was used for reverse molecular docking in Swiss Target Prediction database to obtain potential ***-related molecules were obtained from GeenCards database,and the predicted targets of PF for injury treatment were selected by Wayne *** mechanism analysis,the protein-protein interactions were constructed by String,and the KEGG analysis was conducted in ***,cell viability and cytotoxicity assay were established by CCK8 ***,the experimental cells were allocated to control,model(200μmol·L^(−1) H_(2)O_(2)),SB20358010μmol·L^(−1)(200μmol·L^(−1) H_(2)O_(2)+SB20358010μmol·L^(−1)),PF 50μmol·L^(−1)(200μmol·L^(−1) H_(2)O_(2)+PF 50μmol·L^(−1)),and PF 100μmol·L^(−1)(200μmol·L^(−1) H_(2)O_(2)+PF 100μmol·L^(−1))*** measured the intracellular ROS,Hoechst 33258 staining,cell apoptosis,the levels of Bcl-xl,Bcl-2,Caspase-3,Cleaved-caspase3,Cleaved-caspase7,TRPA1,TRPV1,and the phosphorylation expression of *** are 96 potential targets that may be associated with PF for injury ***,we chose the“Inflammatory mediator regulation of TRP channels”pathway for the experimental verification from the first 10 KEGG *** experimental verification,H_(2)O_(2) decreased the cell viability moderately(P<0.05),and 100μmol·L^(−1) PF increased the cell viability significantly(P<0.05).Depending on the difference of intracellular ROS fluorescence intensity,PF inhibited H_(2)O_(2)-induced reactive oxygen species production in Schwann *** Hoechst 33258 staining,PF reversed the condensed chromatin and apoptotic nuclei following H_(2)O_(2) ***,Flow cytometry results showed that PF could substantially inhibit H_(2)O_(2) induced apoptosis(P<0.05).Pretreatment with PF obviously reduced the levels of Caspase3,Cleaved-caspase3,Cleaved-caspase7,TRPA1,TRPV1,and the pho

关键词： Paeoniflorin Hydrogen peroxide H_(2)O_(2) p38MAPK Schwann cells Network pharmacology

The effects of fermentation and adsorption using lactic acid bacteria culture broth on the feed quality of rice straw

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Journal of Integrative Agriculture 2015年第3期14卷 503-513页

作者： LIU jing-jing LIU Xiao-ping REN Ji-wei zhao Hong-yan yuAN Xu-feng WANG Xiao-fen Abdelfattah Z M Salem CUI Zong-jun College of Agronomy and Biotechnology/Center of Biomass Engineering China Agricultural University Plants Protecting Station of Agricultural Bureau Agronomy of Yanbian University Faculty of Veterinary Medicine and Animal Science Autonomous University of the State of Mexico

To improve the nutritional value and the palatability of air-dried rice straw, culture broth of the lactic acid bacteria community SFC-2 was used to examine the effects of two different treatments, fermentation and adsorption. Air-dried and chopped rice straw was treated with either fermentation for 30 d after adding 1.5 L nutrient solution（50 m L inocula L–1, 1.2×1012 CFU m L–1 inocula） kg–1 straw dry matter, or spraying a large amount of culture broth（1.5 L kg–1 straw dry matter, 1.5×1011 CFU m L–1 culture broth） on the straw and allowing it to adsorb for 30 min. The feed quality and aerobic stability of the resulting forage were examined. Both treatments improved the feed quality of rice straw, and adsorption was better than fermentation for preserving nutrients and improving digestibility, as evidenced by higher dry matter（DM） and crude protein（CP） concentrations, lower neutral detergent fiber（NDF）, acid detergent fiber（ADF） and NH3-N concentrations, as well as higher lactic acid production and in vitro digestibility of DM（IVDMD）. The aerobic stability of the adsorbed straw and the fermented straw was 392 and 480 h, respectively. After being exposed to air, chemical components and microbial community of the fermented straw were more stable than the adsorbed straw.

关键词： adsorption fermentation lactic acid bacteria culture broth rice straw