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Giant magneto impedance effect of Co-rich amorphous fibers under magnetic interaction

International Journal of Minerals,Metallurgy and Materials 2020年第10期27卷 1415-1420页

作者： shu-ling Zhang Wei-ye Chen Ning Cui qian-qian Wu You-liang Su School of Mechanical&Automotive Engineering Qingdao University of TechnologyQingdao 266520China School of Material of Science and Engineering North Minzu UniversityYinchuan 750021China School of Mechanical Engineering Ningxia UniversityYinchuan 750021China

The quasi-metallic fibers were selected from 1 to 40 pieces and connected in parallel in this *** giant magneto impedance(GMI)effect of Co-based melt extract fibers in the bundle mode was investigated,and the distribution of the surface circumferential magnetic field on the fibers was also *** distribution was induced by the driving current,which gave rise to the circular magnetization process and the GMI *** improved GMI effect with much higher field sensitivity was observed in these fiber *** show that the field sensitivities of the four-fiber and six-fiber bundles reach 19.5 V·m·kA−1(at 1 MHz)and 30.8 V·m·kA−1(at 5 MHz).The circumferential magnetic field distributed throughout the fiber’s circumferential surface is rearranged and becomes uneven due to the magnetic interaction among *** are both strengthened and weakened magnetic field parts around these fibers’*** strengthened magnetic field improves the circumferential domain magnetization of the surface,resulting in larger GMI ***,the weakened parts inhibit the circumferential magnetization process and,therefore,the GMI *** also induces greater magnetization damp because of the increased domain interactions under the strong skin *** co-effect between the magnetic domains and the circumferential magnetization induces the optimization of the GMI effect in the four-fiber *** observed GMI effect proves that fibers in bundle form can modify the sensitivity of the GMI ***,different fiber bundles could be tuned according to the working conditions in order to manipulate the GMI response.

关键词： giant magneto impedance metallic fibers magnetization sensitivity

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Effects of Paranosema locustae(Microsporidia) on the development and morphological phase transformation of Locusta migratoria(Orthoptera: Acrididae) through modulation of the neurotransmitter taurine

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Journal of Integrative Agriculture 2020年第1期19卷 204-210页

作者： LI Ao-mei YIN Yue ZHANG Yu-xin ZHANG Liu ZHANG Kai-qi SHEN Jie tan shu-qian SHI Wang-peng Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management College of Plant ProtectionChina Agricultural University

Neurotransmitters are important in the maintenance of phase transformation of Locusta migratoria(Arthropoda: Orthoptera). Here, the effects of the entomopathogen Paranosema locustae on the neurotransmitter taurine in migratory locusts were studied using biochemical methods. After inoculation with P. locustae, the taurine content of infected locusts significantly declined, but F/C values(ratio between the length of hind femur and the width of the head of locust) increased significantly, compared to healthy locusts. Meanwhile, F/C values of infected locusts that were injected with 2 μg of taurine showed no significant differences from those of healthy locusts, demonstrating that supplemental taurine inhibited the changes in morphological phase caused by P. locustae. Paranosema locustae infection also caused longer developmental durations and lower body weights of locusts, but these changes were unaffected after injection with taurine. These results provided new insights into the mechanisms by which microsporidian parasites affected their locust hosts.

关键词： Locusta migratoria Paranosema locustae neurotransmitter taurine morphological characteristics

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Influence of reaction piles on test pile response in a static load test

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2013年第3期14卷 198-205页

作者： qian-qing ZHANG shu-cai LI Zhong-miao ZHANG Geotechnical and Structural Engineering Research Center Shandong University MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering Zhejiang University

This work presents a new analytical method to analyze the influence of reaction piles on the test pile response in a static load *** our method,the interactive effect between soil and pile is simulated using independent springs and the shear displacement method is adopted to analyze the influence of reaction piles on test pile ***,the influence of the sheltering effect between reaction piles and test pile on the test pile response is taken into *** cases are analyzed to verify the rationality and efficiency of the present *** method can be easily extended to a nonlinear response of an influenced test pile embedded in a multilayered soil,and the validity is also demonstrated using centrifuge model tests and a computer program presented in the *** present analyses indicate that the proposed method will lead to an underestimation of the test pile settlement in a static load test if the influence of the presence of reaction piles on the test pile response is neglected.

关键词： Test pile Reaction pile Shear displacement method Sheltering effect Multilayered soil

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Aging of PVDF and PES ultrafiltration membranes by sodium hypochlorite:Effect of solution pH

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Journal of Environmental Sciences 2021年第6期33卷 444-455页

作者： Kai Li qian Su shu Li Gang Wen Tinglin Huang Key Laboratory of Northwest Water Resource Environment and EcologyMOEXi’an University of Architecture and TechnologyXi’an 710055China Shaanxi Key Laboratory of Environmental Engineering Xi’an University of Architecture and TechnologyXi’an 710055China

Sodium hypochlorite(NaClO)is a commonly applied cleaning agent for ultrafiltration membranes in water and wastewater ***-term exposure to NaClO might change the properties and performance of polymeric membranes,and ultimately shorten membrane *** species in NaClO solution vary with solution pH,and the aging effects can change depending on the membrane *** this study,the aging of polyvinylidene fluoride(PVDF)and polyethersulfone(PES)membranes by NaClO at pH 3–11 was investigated by examining variations in chemical composition,surface charge,surface morphology,mechanical strength,permeability,and retention *** pyrrolidone(PVP),which was blended in both membranes,was oxidized and dislodged due to NaClO aging at all investigated pH values,but the oxidation products and dislodgement ratio of PVP varied with solution *** the PVDF membrane,NaClO aging at pH 3–11 caused a moderate increase in permeability and decreased retention due to the oxidation and release of *** tensile strength decreased only at pH 11 because of the defluorination of PVDF *** the PES membrane,NaClO aging at all investigated pH resulted in chain scission of PES molecules,which was favored at pH 7 and 9,potentially due to the formation of free ***,a decrease in tensile strength and retention ability,as well as an increase in permeability,occurred in the PES membrane for NaClO aging at pH 3–***,the results can provide a basis for selecting chemical cleaning conditions for PVDF and PES membranes.

关键词： Polymeric ultrafiltration(UF)membrane Membrane aging Sodium hypochlorite(NaClO) Membrane properties Performance factors

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C-L METHOD AND ITS APPLICATION TO ENGINEERING NONLINEAR DYNAMICAL PROBLEMS

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Applied Mathematics and Mechanics(English Edition) 2001年第2期22卷 144-153页

作者： CHEN Yu-shu(陈予恕) DING qian(丁千) Department of Mechanics Tianjin University Tianjin 300072 P R China Department of Mechanics Tianjin University Tianjin 300072 P R China

The C-L method was generalized from Liapunov-Schmidt reduction method, combined with theory of singularities, for study of non-autonomous dynamical systems to obtain the typical bifurcating response curves in the system parameter spaces. This method has been used, ar an example, to analyze the engineering nonlinear dynamical problems by obtaining the bifurcation programs and response curves which are useful in developing techniques of control to subharmonic instability of large rotating machinery.

关键词： C-L method nonlinear dynamics nonlinear oscillations bifurcation and chaos

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An Image Fusion Algorithm Based on Lifting Scheme

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Geo-Spatial Information Science 2005年第3期8卷 171-175,200页

作者： BAI Di FAN Qibin shu qian School of Mathematics and Statistics Wuhan University Luojia Hill Wuhan 430072 China. 不详

Taking the advantage of the lifting scheme＇s characters that can build wavelet translorms tor transforming from integer to integer and the quality of the reconstructing image＇is independent of the topology way adopted by the boundary, an image fusion algorithm based on lifting scheme is proposed. This paper discusses the fundamental theory of lifting scheme firstly and then after taking transform analysis according to a kind of images that need to be confused.

关键词： lifting schemes image processing integer wavelet transform image fusion

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Comprehensive proteomic signature and identification of CDKN2A as a promising prognostic biomarker and therapeutic target of colorectal cancer

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World Journal of Clinical Cases 2022年第22期10卷 7686-7697页

作者： qian-qian Wang Yuan-Chen Zhou Yu-Jia Zhou Ge Geng Qin Teng-Fei Yin Dong-Yan Zhao Chang tan shu-Kun Yao Graduate School Peking University China-Japan Friendship School of Clinical MedicineBeijing 10029China Graduate School Peking Union Medical College and Chinese Academy of Medical SciencesBeijing 100730China of Gastroenterology China-Japan Friendship HospitalBeijing 100029China Graduate School Peking University China-Japan Friendship School of Clinical MedicineBeijing 100029China

BACKGROUND The carcinogenesis of colorectal cancer(CRC)involves many different molecules and multiple pathways,and the specific mechanism has not been elucidated until *** studies on the proteomic signature profiles of CRC are relatively ***,we herein aimed to provide a more comprehensive proteomic signature profile and discover new prognostic markers and therapeutic targets by performing proteomic analysis of CRC and paired normal *** To investigate the proteomic signature and identify novel protein prognostic biomarkers of *** Cancer tissues and paired normal tissues were collected from 48 patients who underwent surgical removal at the China-Japan Friendship Hospital from January 2020 to June *** independent acquisition(DIA)quantitative proteomic analysis was performed using high-performance liquid chromatography–mass spectrometry/mass spectrometry(nano-UHPLC–MS/MS)to identify differen tially expressed proteins,among which those with a P adj value(t test,BH correction)2 were identified as potential *** expressed proteins were selected by bioinformatics analysis and validated by immunohistochemical tissue microarrays,and their association with prognosis was further analyzed with the Gene Expression Profiling Interactive Analysis database to identify prognostic protein biomarkers of *** Significantly differential protein expression was observed between cancer tissues and normal *** with normal tissues,1115 proteins were upregulated and 705 proteins were downregulated in CRC based on P adj2,and bioinformatics analysis revealed that the differentially expressed proteins were involved in multiple biological processes associated with tumorigenesis,including ribosome biogenesis in eukaryotes,focal adhesion,extracellular matrix-receptor interactions and other tumor metabolism ***,cyclin-dependent kinase inhibitor

关键词： Colorectal cancer Proteomic analysis Cyclin-dependent kinase inhibitor 2A Prognostic biomarker Therapeutic target Precision treatment

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Asymptotic Property of Approximation to x~αsgn x by Newman Type Operators

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Acta Mathematicae Applicatae Sinica 2010年第4期26卷 617-624页

作者： qian Zhan shu-sheng Xu Yue-hong Zhang Department of Mathematics Anhui University of Sciences and Technology Huainan 232001 China East China University of Sciences and Technology Shanghai 200237 China Yuanpei college Shaoxing University Shaoxing 312000 China

Approximation to the function ｜x｜ plays an important role in approximation theory. This paper studies the approximation to the function xαsgn x, which equals ｜x｜ if α = 1. We construct a Newman Type Operator rn... 详细信息

关键词： Rational approximation asymptotic property Newman type operator

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Combining Topological Properties and Strong Ties for Link Prediction

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Tsinghua Science and Technology 2017年第6期22卷 595-608页

作者： Fulan qian Yang Gao shu Zhao Jie tang Yanping Zhang the School of Computer Science and Technology Anhui UniversityHefei 230601China Center of Information Support&Assurance Technology Anhui UniversityHefei 230601China. Department of Computer Science and Technology Tsinghua UniversityBeijing 100084China

Link prediction is an important task that estimates the probability of there being a link between two disconnected nodes. The similarity-based algorithm is a very popular method that employs the node similarities to find links. Most of these types of algorithms focus only on the contribution of common neighborhoods between two nodes. In sociological theory relationships within three degrees are the strong ties that can trigger social ***, strong ties can provide more connection opportunities for unconnected nodes in the networks. As critical topological properties in networks, nodes degrees and node clustering coefficients are well-suited for describing the tightness of connections between nodes. In this paper, we characterize node similarity by utilizing the strong ties of the ego network（i.e., paths within three degrees） and its close connections（node degrees and node clustering coefficients）. We propose a link prediction algorithm that combines topological properties with strong ties, which we called the TPSR algorithm. This algorithm includes TPSR2, TPSR3, and the TPSR4 indices. We evaluate the performance of the proposed algorithm using the metrics of precision and the Area Under the Curve（AUC）. Our experimental results show the TPSR algorithm to perform remarkably better than others.

关键词： complex networks link prediction strong ties topological properties

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Novel organosoluble polyimide based on an asymmetric bis(ether amine):3,4'-Bis(4-aminophenoxy)-benzophenone

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Chinese Chemical Letters 2012年第1期23卷 121-122页

作者： qian qian Bu shu Jiang Zhang Hui Li Yan Feng Li State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical EngineeringInstitute of Biochemical Engineering&Environmental TechnologyLanzhou UniversityLanzhou 730000China

A new kind of asymmetrical ether diamine,3,4＇-bis（4-aminophenoxy）benzophenone（BABP）,was synthesized from the nucleophilic substitution reaction of 4-chloronitrobenzene and 3,4＇-dihydroxybenzophenone in the presence of potassium carbonate,followed by catalytic reduction with SnCl_2-6H_2O and concentrated hydrochloric *** prepared diamine was employed in the preparation of a novel polyimide containing asymmetrical diaryl ether segments via the polycondensation of it with BTDA by a two-step *** resulting polyimide exhibits excellent solubility,film-forming capability and high thermal resistance.

关键词： Asymmetrical diamine Ether diamine Organosoluble polyimide

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