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ON PAIRED PRIORITIZATIONS OF CRITERIA IN THE PERSPECTIVE OF DIAGRAPHS

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Journal of Systems Science and Systems Engineering 2015年第4期24卷 466-485页

作者： Wenning Hao xiaohan yu Zeshui Xu Xiuli Qi College of Command Information Systems PLA University of Science and Technology College of Sciences PLA University of Science and Technology

It is not usually independent among criteria in multi-criteria decision making(MCDM),and various dependences of criteria greatly influence the results of decision *** an exact decision is desired,we must make clear the role of the dependences of ***,a new kind of dependences of criteria proposed recently,imply that the importance weights of criteria with lower priority for an alternative rely on whether the alternative satisfies the decision maker under criteria with higher *** has been validated that there exist lots of relevant applications in our daily ***,most existing literatures focus on how to deal with the problems of MCDM with ordered prioritizations among criteria(a special form of prioritizations).The characteristics of prioritizations are not dug *** paper constructs a new form of prioritizations,called paired prioritizations,so as to reduce or even avoid imperfect rationality of decision makers hidden in the ordered *** first represent binary paired prioritizations as a digraph,based on which we discover two kinds of imperfect rationality(inconsistency and incompleteness) produced in the period that the decision maker supplies the binary paired *** the given paired prioritizations are consistent and complete,we develop an approach to transform the paired prioritizations to ordered *** latter can be used to handle prioritized MCDM ***,uncertainty,another kind of imperfect rationality,is considered when the decision maker provides the fuzzy paired prioritizations based on a set of linguistic *** construct a fuzzy digraph whose fuzzy relations are just the fuzzy paired *** ordered prioritizations can then be derived with the aid of the fuzzy *** use cases are taken to show the process of transformations from binary/fuzzy paired prioritizations to ordered prioritizations.

关键词： Paired prioritization ordered prioritization criteria digraph fuzzy digraph

Radar fast long-time coherent integration via TR-SKT and robust sparse FRFT

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Journal of Systems Engineering and Electronics 2023年第5期34卷 1116-1129页

作者： CHEN Xiaolong GUAN Jian ZHENG Jibin ZHANG yue yu xiaohan Naval Aviation University Yantai 264001China National Laboratory of Radar Signal Processing Xidian UniversityXi’an 710071China School of Electronic and Communication Engineering Sun Yat-Sen UniversityGuangzhou 510000China Unit 91977 of the PLA Beijing 100036China

Long-time coherent integration(LTCI)is an effective way for radar maneuvering target detection,but it faces the problem of a large number of search parameters and large amount of *** the simultaneous compensation of the range and Doppler migrations in complex clutter back-ground,and at the same time improving the calculation efficiency has become an urgent problem to be *** sparse transformation theory is introduced to LTCI in this paper,and a non-parametric searching sparse LTCI(SLTCI)based maneuvering target detection method is *** method performs time reversal(TR)and second-order Keystone transform(SKT)in the range frequency&slow-time data to complete high-order range walk compensation,and achieves the coherent integra-tion of maneuvering target across range and Doppler units via the robust sparse fractional Fourier transform(RSFRFT).It can compensate for the nonlinear range migration caused by high-order motion.S-band and X-band radar data measured in sea clutter background are used to verify the detection performance of the proposed method,which can achieve better detection performance of maneuvering targets with less computational burden compared with several popular integration methods.

关键词： radar maneuvering target detection sea clutter long-time coherent integration(LTCI) sparse transformation time reversal(TR) second-order Keystone transform(SKT)

Nondestructive analysis by combined X-ray tomography on a synchrotron radiation facility

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Nuclear Science and Techniques 2007年第5期18卷 257-260页

作者： DENG Biao yu xiaohan LIAiguo XU Hongjie Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201800 China

A nondestructive X-ray analysis technique combining transmission tomography, fluorescence tomography and Compton tomography based on synchrotron radiation is described. This novel technique will be an optional experimental technique at SSRF's hard X-ray micro-focusing beamline under construction at present. An experimental result of combined X-ray tomography is obtained in NE-5A station of PF. The reconstructed images of test objects are given.

关键词： X线扫描图象重列同步加速器物理实验

Terahertz time-domain spectroscopic investigation on quinones

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Science China Chemistry 2008年第4期51卷 354-358页

作者： GE Min ZHAO HongWei WANG WenFeng yu xiaohan LI WenXin Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China

Well resolved far-infrared spectra of 1,4-benzoquinone, 1,4-naphthoquinone, and 9, 10-anthraquinonme in polycrystalline form have been measured with terahertz time domain spectroscopy at room tem- perature. The characterizations of power absorption and index of refraction in the frequency range 0.3 -2.0 THz are presented. Theoretical calculation is applied to assist the analysis and assignment of individual THz absorption spectra of the p-quinones with semiempirical AM1, Hartree-Fock (HF), and density functional theory (DFT) method. Observed THz responses are assigned to the translational and torsional vibrations of p-quinone dimer held together by weak hydrogen bonds.

关键词： quinones terahertz time domain spectroscopy DFT

Effects of a fermented buckwheat flower and leaf extract on the blood glucose and lipid profile of type 2 diabetic db/db mice

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Journal of Traditional Chinese Medicine 2020年第2期40卷 197-203页

作者： Wang Jianxing yu xiaohan Jiang Yan Wang Yan Li Ying Han Shuying North China University of Science and Technology Jitang CollegeTangshan 063000China North China University of Science and Technology Clinical Medical CollegeTangshan 063000China North China University of Science and Technology Basic Medical CollegeTangshan 063000China Hebei Key Laboratory on Chronic Diseases Tangshan 063000China Tangshan Basic Clinical Research Key Laboratory on Chronic Diseases Tangshan 063000China

OBJECTIVE: To determine the efficacy of a fermented buckwheat flower and leaf extract(EFBFL) for the reduction of blood glucose and lipid dysregulation in spontaneously obese type 2 diabetic db/db mice, and to explore the possible mechanisms ***: Forty 9-week-old male db/db mice were randomly allocated to a high-dose EFBFL group(EFBFL-H), a low-dose EFBFL group(EFBFL-L),a metformin hydrochloride positive control group(MEG), and a db/db control group(MG), and there was also a db/m negative control group(NCG)(n =10). Oral glucose tolerance tests(OGTT) were performed after 7 weeks of treatment. At the end of 8 weeks of treatment, random blood glucose(RBG),glycosylated hemoglobin(Hb Alc), fasting plasma glucose(FPG), fasting serum insulin(FINS), triglyceride(TG), serum total cholesterol(TC), free fatty acids(FFA), high-density lipoprotein-cholesterol, and low-density lipoprotein-cholesterol(LDL-c) were measured, the homeostasis model assessment-insulin resistance(HOMA-IR) was calculated. Immunohistochemistry and western blotting measured the expression of glucose transporter4(GLUT4) and peroxisome proliferator-activated receptor γ(PPAR-γ) by in skeletal ***: The MG mice had a significantly increased in RBG, Hb Alc, the HOMA-IR level, the serum of TG, TC, LDL-c, but a decreased in glucose tolerance and the protein expression of GLUT4 and PPAR-γ compared with the NCG. Compared with the MG, EFBFL groups significantly decreased RBG, Hb Alc, and the HOMA-IR level, increased glucose tolerance. Meanwhile EFBFL groups reduced the serum TG, TC, and LDL-c in a dose-dependent manner. In addition, EFBFL increased the protein expression of GLUT4 and PPAR-γ in the skeletal muscle of db/db *** was significant difference between the MG group and EFBFL ***: These findings suggest that EFBFL has anti-diabetic effects in db/db mice, ameliorating glucose intolerance, lipid dysregulation, and insulin resistance.

关键词： Eriogonum Diabetes mellitus,type 2 Muscle,skeletal Glucose transporter type 4 PPAR gamma

Terahertz time-domain spectroscopy of some pentoses

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Science China Chemistry 2006年第3期49卷 204-208页

作者： GE Min ZHAO Hongwei JI Te yu xiaohan WANG Wenfeng LI Wenxin Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China

The well-resolved absorption spectra of D-xylose,D-ribose,D-arabinose,D-lyxose and other related substances in the spectral region between 0.3 and 2.0 THz are measured using tera-hertz time-domain spectroscopy(THz-TDS)at 295 *** the absorption spectra of different chemicals,we can distinguish the samples *** THz-TDS is demonstrated to be a power and characteristic spectral tool,which is highly sensitive to the minor changes of the molecular structures and can be applied to detect and analyze similar materials.

关键词： pentoses terahertz time-domain spectroscopy(THz-TDS).

Multiscale structural engineering of carbon nitride for enhanced photocatalytic H2O2 production

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Nano Research 2023年第4期16卷 4524-4530页

作者： Qing He Bounxome Viengkeo Xuan Zhao Zhengyuan Qin Jie Zhang xiaohan yu Yongpan Hu Wei Huang Yanguang Li Institute of Functional Nano and Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and DevicesSoochow UniversitySuzhou 215123China National Laboratory of Solid State Microstructures School of Physicsand Collaborative Innovation Center for Advanced MicrostructuresNanjing UniversityNanjing 210093China Macao Institute of Materials Science and Engineering Macao University of Science and TechnologyMacao 999078China

Carbon nitride(C_(3)N_(4))holds great promise for photocatalytic H_(2)O_(2)production from oxygen *** spite of great research efforts,they still suffer from low catalytic efficiency primarily limited by the fast recombination of photogenerated charge *** this work,we report the multiscale structural engineering of C_(3)N_(4)to significantly improve its optoelectronic properties and consequently photocatalytic *** product consists of porous spheres with high surface areas,abundant nitrogen defects,and alkali metal *** visible light irradiation,our catalyst shows a remarkable H_(2)O_(2)production rate of 3,080μmol·g^(−1)·h^(−1),which is more than 10 times higher than that of bulk C_(3)N_(4)and exceeds those of most other C_(3)N_(4)-based ***,the catalyst exhibits great stability,and can continuously work for 15 h without obvious activity decay under visible light irradiation,eventually giving rise to a high H_(2)O_(2)concentration of ca.45 mM.

关键词： photocatalytic H_(2)O_(2)production oxygen reduction carbon nitride multiscale structural engineering

Parkinson’s disease: how should we consider the selectivity and progressivity of its neuropathology?

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Journal of Translational Neuroscience 2019年第3期4卷 24-36页

作者： Wei Li xiaohan yu Shun yu Department of Neurobiology Xuanwu HospitalCapital Medical UniversityBeijing 100053China Clinical Center for Parkinson’s Disease Capital Medical UniversityBeijing 100053China Key Laboratory for Neurodegenerative Disease of the Ministry of Education Beijing Key Laboratory for Parkinson’s DiseaseParkinson Disease Center of Beijing Institute for Brain DisordersBeijing 100053China National Clinical Research Center for Geriatric Disorders Beijing 100053China

Parkinson’s disease(PD)is a common age-related neurodegenerative disease characterized by movement *** hallmark pathological lesions of PD are the formation of Lewy pathology in selected populations of neurons throughout the nervous *** and his colleagues created a staging system for PD describing the connection between Lewy pathology and disease *** proposed that Lewy pathology might be initially triggered by exogenous pathogens targeting the enteric or olfactory nervous system,then spread in a prion-like propagation manner from the peripheral nerves to the lower brainstem and midbrain,before finally reaching higher cortical structures,causing a sequential occurrence of the non-motor and motor symptoms,depending on the lesioned ***,emerging evidence also supports a functional threshold hypothesis proposed by Engelender and Isacson in which Lewy pathology may occur parallelly in the central and peripheral nervous systems and the symptoms only begin when the functional reserve of the affected neurons(and their connecting brain regions)is unable to allow for network ***,early symptoms of PD reflect the loss of function in the least compensated systems,such as the enteric and olfactory nervous systems,rather than the spread of Lewy pathology from the peripheral to the central nervous *** current review article provides a comprehensive overview of the evidence supporting a merged mechanism that the neurodegeneration in PD happens to those neurons that are not only intrinsically vulnerable but also affected by the spread of Lewy pathology.

关键词： Parkinson’s disease(PD) Lewy body(LB) α-synuclein(α-syn) motor symptom non-motor symptom

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激光同步辐射源特性的线性康普顿散射分析

核技术 2005年第8期28卷 569-574页

作者：余笑寒杨燕舞中国科学院上海应用物理研究所上海201800

激光同步辐射源(Laser Synchrotron Source,简称LSS)是利用强激光与相对论电子束散射,产生准单色、能量可调的X射线脉冲的新型X射线源。本文介绍了LSS的线性康普顿散射理论;分析了LSS的主要特性,包括X射线通量、脉冲时间结构、能谱等。

关键词：激光同步辐射源 X射线线性康普顿散射理论能谱