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The Orthogonal Bases of Exponential Functions Based on Moran-Sierpinski Measures

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Acta Mathematica Sinica,English Series 2024年第7期40卷 1804-1824页

作者： Qi Rong DENG Xing Gang HE ming tian li Yuan ling YE School of Mathematics and Statistics Center for Applied Mathematics of Fujian Province&Key Laboratory of Analytical Mathematics and Applications(Ministry of Education)Fujian Normal UniversityFuzhou350117P.R.China School of Mathematics and Statistics Key Lab NAA-MOE and Hubei Key Lab-Math.Sci.Central China Normal UniversityWuhan430079P.R.China School of Mathematical Sciences&South China Research Center for Applied Mathematics and Interdisciplinary Studies South China Normal UniversityGuangzhou510631P.R.China

Let An∈M2(ℤ)be integral matrices such that the infinite convolution of Dirac measures with equal weightsμ{A_(n),n≥1}δA_(1)^(-1)D*δA_(1)^(-1)A_(2)^(-2)D*…is a probability measure with compact support,where D={(0,0)^(t),(1,0)^(t),(0,1)^(t)}is the Sierpinski *** prove that there exists a setΛ⊂ℝ2 such that the family{e2πi〈λ,x〉:λ∈Λ} is an orthonormal basis of L^(2)(μ{A_(n),n≥1})if and only if 1/3(1,-1)A_(n)∈Z^(2)for n≥2 under some metric conditions on A_(n).

关键词： Moran-Sierpinski measures orthonormal basis of exponential functions self-affine measures spectral measures

Evaluation of the integrated multi-satellite retrievals for global precipitation measurement over the Tibetan Plateau

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Journal of Mountain Science 2019年第7期16卷 1500-1514页

作者： MA Lu ZHAO lin tian li-ming YUAN li-ming XIAO Yao ZHANG Le-le ZOU De-fu QIAO Yong-ping Cryosphere Research Station on the Qinghai-Tibetan Plateau State Key Laboratory of Cryospheric SciencesNorthwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory for Bio-resource and Eco-environment of Ministry of Education College of Life SciencesSichuan UniversityChengdu 610064China School of Geography Science Qinghai Normal UniversityXining 810008China

The availability of high-resolution satellite precipitation measurement products provides an opportunity to monitor precipitation over large and complex terrain and thus accurately evaluate the climatic,hydrological and ecological conditions in those *** Global Precipitation Measurement(GPM)mission is an important new program designed for global satellite precipitation estimation,but little information has been reported on the applicability of the GPM’s products for the Tibetan Plateau(TP).The object of this study is to evaluate the accuracy of the Integrated Multi-Satellite Retrievals for GPM(IMERG)Final Run product under different terrain and climate conditions over the TP by using 78 ground gauges from April 2014 to December *** results showed the following:(1)the 3-year average daily precipitation estimation in the IMERG agrees well with the rain gauge observations(R^2=0.58,Plity to detect precipitation,as indicated by a high probability of detection(78%-98%)and critical success index(65%-85%);(2)IMERG performed better at altitudes from 3000 m to 4000 m with a small relative bias(RB)of 6.4%.Precipitation change was not significantly affected by local relief;(3)the climate system of the TP was divided into four climate groups with a total of 12 climate types based on the K?ppen climate classification system,and IMERG performed well in all climate types with the exception of the arid-desert-cold climate(Bwk)***,although IMERG showed the potential to detect snowfall,it still exhibits deficiencies in identifying light and moderate *** results indicate that IMERG could provide more accurate precipitation data if its retrieval algorithm was improved for complex terrain and arid regions.

关键词： GPM IMERG Rain gauge Topography Koppen climate classification Tibetan Plateau

Burst Phase Distribution of SGR J1935+2154 Based on Insight-HXMT

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Research in Astronomy and Astrophysics 2023年第3期23卷 68-74页

作者： Xue-Feng Lu li-ming Song ming-Yu Ge You-li Tuo Shuang-Nan Zhang Jin-Lu Qu Ce Cai Sheng-Lun Xie Cong-Zhan liu Cheng-Kui li Yu-Cong Fu Ying-Chen Xu tian-ming li Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsBeijing 100049China University of Chinese Academy of Sciences Chinese Academy of SciencesBeijing 100049China College of Physics and Hebei Key Laboratory of Photophysics Research and Application Hebei Normal UniversityShijiazhuang 050024China Institute of Astrophysics Central China Normal UniversityWuhan 430079China

On 2020 April 27,the soft gamma-ray repeater SGR J1935+2154 entered its intense outburst episode ***-HXMT carried out about one month observation of the source.A total number of 75 bursts were detected during this activity episode by Insight-HXMT,and persistent emission data were also *** report on the spin period search result and the phase distribution of burst start times and burst photon arrival times of the Insight-HXMT high energy detectors and Fermi/Gamma-ray Burst Monitor(GBM).We find that the distribution of burst start times is uniform within its spin phase for both Insight-HXMT and Fermi/GBM observations,whereas the phase distribution of burst photons is related to the type of a burst’s energy *** bursts with the same spectrum have different distribution characteristics in the initial and decay episodes for the activity of magnetar SGR J1935+2154.

关键词： spectrum Fermi distribution

ScQ cloud quantum computation for generating Greenberger-Horne-Zeilinger states of up to 10 qubits

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Science China(Physics,Mechanics & Astronomy) 2022年第11期65卷 84-89页

作者： Chi-Tong Chen Yun-Hao Shi Zhongcheng Xiang Zheng-An Wang tian-ming li Hao-Yu Sun tian-Shen He Xiaohui Song Shiping Zhao Dongning Zheng Kai Xu Heng Fan Institute of Physics Chinese Academy of SciencesBeijing100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing100049China Department of Physics Fudan UniversityShanghai200433China Beijing Academy of Quantum Information Sciences Beijing100193China CAS Center for Excellence in Topological Quantum Computation University of Chinese Academy of SciencesBeijing100190China Songshan Lake Materials Laboratory Dongguan523808China

In this study, we introduce an online public quantum computation platform, named as ScQ, based on a 1D array of a 10-qubit superconducting processor. Single-qubit rotation gates can be performed on each qubit. Controlled-NOT gates between nearest-neighbor sites on the 1D array of 10 qubits are available. We show the online preparation and verification of Greenberger-Horne-Zeilinger states of up to 10 qubits through this platform for all possible blocks of qubits in the chain. The graphical user interface and quantum assembly language methods are presented to achieve the above tasks, which rely on a parameter scanning feature implemented on ScQ. The performance of this quantum computation platform, such as fidelities of logic gates and details of the superconducting device, is presented.

关键词： quantum computation quantum information quantum entanglement

同方期刊数据库

Effects of Soybean Isoflavones on In vitro Antioxidative Capacity of Satellite Cells of Porcine Skeletal Muscles

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Agricultural Sciences in China 2011年第1期10卷 120-125页

作者： JIANG Zong-yong ZHOU Gui-lian liN Ying-cai JIANG Shou-qun ZHENG Chun-tian HAN li-ming CHEN Fang Key Laboratory of Animal Nutrition and Feed Science （South China） Ministry of Agriculture/Institute of Animal Science Guangdong Academy of Agricultural Science Guangzhou 510640 P.R.China

A synthetic isoflavone （ISO-S） or genistein was added in culture medium at different concentrations （0, 10, 20, 30, 40, and 80 *** L^-1） to investigate the effects of soybean isoflavones on antioxidative capacity of porcine skeletal muscle satellite cells. After 48 h incubation, the suspension was cryopreserved for the determination of superoxide dismutase （SOD）, catalase （CAT）, glutathione peroxidase （GSH-Px） activities, and malondialdehyde （MDA） content. The mRNA levels of SOD, CAT, and GSH-Px gene in cells were detected with Taqman fluorescent probe method. The results showed that the content of MDA and the activities and the mRNA levels of SOD of porcine skeletal muscle satellite cells were influenced by supplemented soybean isoflavone （P〈0.05） when adding 10-80 μmol L^-1 ISO-S or genistein in the medium. The MDA contents, SOD and CAT activities and their mRNA expression levels of porcine skeletal muscle cells responded quadratically （P〈 0.05） as the level of ISO-S or genistein increased. Pre-incubation of porcine skeletal muscle satellite cells with ISO-S or genistein at 10-40 pmol L-1 elevated the activities and the mRNA expression levels of SOD and CAT in cells concurrently and decreased the cellular content of MDA （P〈 0.05）. The results indicated that pre-incubation of ISO-S or genistein at 10- 40μmol L^-1 could improve the antioxidative capacity of porcine skeletal muscle satellite cells.

关键词： soybean isoflavone antioxidative capacity superoxide dismutase catalase skeletal muscle satellite cells

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2005年我国染料有机颜料工业发展回顾

现代化工 2006年第5期26卷 7-12页

作者：田利明中国染料工业协会北京100013

介绍了2005年全国染料、有机颜料生产经营和进出口概况。全国染料、有机颜料产量合计79.7万t,同比增长了7.4%。全国染料进出口总量29.59万t,同比增长了1.61%;有机颜料进出口总量14.59万t,同比增长了5.12%。根据相关数据资料及行业情况... 详细信息

介绍了2005年全国染料、有机颜料生产经营和进出口概况。全国染料、有机颜料产量合计79.7万t,同比增长了7.4%。全国染料进出口总量29.59万t,同比增长了1.61%;有机颜料进出口总量14.59万t,同比增长了5.12%。根据相关数据资料及行业情况调查进行了分析对比,并对未来发展进行了预测与建议。

关键词：染料有机颜料工业生产进出口

The influence of the Insight-HXMT/LE time response on timing analysis

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Research in Astronomy and Astrophysics 2021年第1期21卷 45-52页

作者： Deng-Ke Zhou Shi-Jie Zheng li-ming Song Yong Chen Cheng-Kui li Xiao-Bo li tian-Xiang Chen Wei-Wei Cui Wei Chen Da-Wei Han Wei Hu Jia Huo Rui-Can Ma Mao-Shun li tian-ming li Wei li He-Xin liu Bo Lu Fang-Jun Lu Jin-Lu Qu You-li Tuo Juan Wang Yu-Sa Wang Bai-Yang Wu Guang-Cheng Xiao Yu-Peng Xu Yan-Ji Yang Shu Zhang Zi-liang Zhang Xiao-Fan Zhao Yu-Xuan Zhu Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Chinese Academy of SciencesBeijing 100049China College of Physics Jilin UniversityChangchun 130012China

The LE is the low energy telescope that is carried on *** uses swept charge devices(SCDs)to detect soft X-ray ***’s time response is caused by the structure of the *** theoretical analysis and Monte Carlo simulations we discuss the influence of LE time response(LTR)on the timing analysis from three aspects:the power spectral density,the pulse profile and the time *** the LTR,the value of power spectral density monotonously decreases with the increasing *** power spectral density of a sinusoidal signal reduces by a half at frequency 536 *** corresponding frequency for quasi-periodic oscillation(QPO)signals is 458 *** root mean square(RMS)of QPOs holds a similar *** the LTR,the centroid frequency and full width at half maxima(FWHM)of QPOs signals do not *** LTR reduces the RMS of pulse profiles and shifts the pulse *** the time domain,the LTR only reduces the peak value of the cross-correlation function while it does not change the peak position;thus it will not affect the result of the time *** considering the time lag obtained from two instruments and one among them is LE,a 1.18 ms lag is expected caused by the *** time lag calculated in the frequency domain is the same as that in the time domain.

关键词： instrumentation:detectors methods:data analysis methods:analytical

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金融危机下的中国染料工业发展回顾与展望

现代化工 2009年第5期29卷 1-6页

作者：田利明中国染料工业协会

介绍了2008年我国染料行业在金融危机的冲击下遇到的困境，对行业经济运行情况进行了分析和预测。我国2008年染料、有机颜料产量合计86．3万t，与上年比下降了9．4％；全国染料进出口总量29．66万t，与上年比下降了15．6％，进出12I总... 详细信息

介绍了2008年我国染料行业在金融危机的冲击下遇到的困境，对行业经济运行情况进行了分析和预测。我国2008年染料、有机颜料产量合计86．3万t，与上年比下降了9．4％；全国染料进出口总量29．66万t，与上年比下降了15．6％，进出12I总额16．48亿美元，与上年比增长了14．0％；有机颜料进出口总量17．5万t，与上年比下降了9．2％，进出口总额11．42亿美元，与上年比增长了9．7％。

关键词：染料行业金融危机分析发展预测

HYDRAZONES CONTAINING NORBORNENYL AND THEIR COPPER(Ⅱ) COMPLEXES

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Chinese Chemical Letters 1994年第5期5卷 413-414页

作者： Qing Bao SONG Xiao li WU ming tian li and Yong Xiang MA (Department of Chemistry, Lanzhou University, Lanzhou, 730000.)

Three new aroylhydrazones containing norbornene group and their copper(Ⅱ) complexes have been synthesized and characterized by elemental analyses, electrolytic conductance, IR spectra, magnetic susceptibility and IGA...

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