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Pure phase MoN: preparation by chemical-diffused permeation and enhanced conductivity with rare earth Gd

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Rare Metals 2015年第2期34卷 137-142页

作者： Xin Li Chao Gao yu-zhi jiang Xi-Kun Li School of Materials Science and Engineering Shenyang Ligong University

MoN was prepared by rare earth Gd thermaldiffused permeation method via solid–gas interface reaction using（NH_4）_4[NiMo6O_24H_6]·7H_2O（abbreviated as NiMo6） as the precursor. Thermo-gravimetric differential thermal analysis（TG–DTA） was used to study the product＇s stability. The results of X-ray diffractometer（XRD）and X-ray photoelectron spectroscopy（XPS） indicate that a new hexagonal crystal MoN forms after the rare earth gas permeation and Gd3＋are diffused as substitution ions into the crystal lattice of MoN, and the surface valence of elemental content was measured by XPS. The conductivity results by direct current（DC） four-probe method show that MoN obtained from the Gd thermal permeation exhibits conductor character in the temperature range of 298–740 K and semiconductor behavior in 740–800 K.

关键词： Rare earth permeation MoN Conductivity Gd

Magnesium hydroxide whisker modified via in situ copolymerization of n-butyl acrylate and maleic anhydride

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Rare Metals 2017年第12期36卷 997-1002页

作者： yu-zhi jiang yu-Lian Wang Chun-Yan Wang Li-Mei Bai Xin Li Yan-Bo Li Collogy of Materials Science and Engineering Shenyang Ligong University Shenyang 110159 China Kailong Lanfeng New Material Technology Co. LtdZhenjiang 212132 China College of Mining Engineering Hebei United UniversityTangshan 063009 China School of Materials Science and Engineering Central South University Changsha 410083 China

Magnesium hydroxide(MH) whiskers were modified via in situ polymerization of n-butyl acrylate and maleic anhydride. Sodium dodecyl sulfonate was used as emulsifier. The modifying effect was evaluated by using contact angle and activation index. The thermal stability,functional groups, structure, morphology, phase composition and surface element valence of MH whiskers were characterized by thermogravimetry-differential scanning calorimetry(TG-DSC), Fourier transform infrared spectroscopy(FTIR), X-ray diffraction(XRD), scanning electron microscopy(SEM) and X-ray photoelectron spectroscopy(XPS). Results reveal that the contact angle and activation index of modified MH whiskers are 105°and 76.5%, the thermal stability shows little change, and the decomposition temperature ranges between 38 and419 ℃. The copolymer of n-butyl acrylate and maleic anhydride absorbed on the surface of MH whiskers leads to the increased diameter and makes the surface of whiskers be rougher. Furthermore, the absorption of element C on the surface of MH whiskers increases, and the diffraction intensity of C 1 s spectra increases; thus, the compatibility of whiskers in the organic phase can be improved significantly. Lastly, the surface molecular model of MH whiskers modified via in situ copolymerization of n-butyl acrylate and maleic anhydride is established.

关键词： Magnesium hydroxide whiskers n-Butyl acrylate Maleic anhydride In situ copolymerization Surface molecular model

Electrochemical property of LiFePO4/C composite cathode with different carbon sources

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Rare Metals 2018年第9期37卷 743-749页

作者： Xin Li yu zhi jiang Xi Kun Li Hai Xia jiang Jun Long Liu Jun Feng Shi Bin Lin Xin Guan Shenyang Ligong University Shenyang 110159 China

To improve the performance of battery cathode materials that consist of carbonaceous organic material, carbon coatings on lithium iron phosphate （LiFePO4/C） materials were synthesized by different carbon sources. LiFePO4/C was synthesized by a combination method of sol-gel and gas-phase diffused permeation. LiFeO4/C materials were prepared by coating different carbon con- tents. High-performance composite materials were pre- pared by combining carbon with element doped by two modified methods. The elements of Fe and C came from Fe3＋ and sucrose, glucose, citric acid. Thermogravimetry- differential thermal analysis （TG-DTA）, X-ray diffrac- tometer （XRD）, scanning electron microscope （SEM）, cycle voltammetry （CV）, and charge-discharge test were used to characterize and test the surface morphology, structure, and electrochemical performance. The results show that LiFePO4/C synthesized with sucrose has higher specific discharge capacity than the other materials. The specific discharge capacity of this material is 84.27 mAh.g-1. The capacity retention could attain 94 % of the initial discharge capacity after 30 cycles, showing good electrochemical performance.

关键词： Solgel Gas-phase diffused permeation LiFePO4/C Sucrose Citric acid

Promising key genes associated with tumor microenvironments and prognosis of hepatocellular carcinoma

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World Journal of Gastroenterology 2020年第8期26卷 789-803页

作者： Long Pan Jing Fang Ming-yu Chen Shu-Ting Zhai Bin Zhang zhi-yu jiang Sarun Juengpanich Yi-Fan Wang Xiu-Jun Cai Key Laboratory of Laparoscopic Technique Research of Zhejiang Province Department of General SurgerySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhou 310016Zhejiang ProvinceChina Zhejiang Province Medical Research Center of Minimally Invasive Diagnosis and Treatment of Abdominal Diseases Hangzhou 310016Zhejiang ProvinceChina

BACKGROUND Despite significant advances in multimodality treatments,hepatocellular carcinoma(HCC)remains one of the most common malignant *** of novel prognostic biomarkers and molecular targets is urgently *** To identify potential key genes associated with tumor microenvironments and the prognosis of *** The infiltration levels of immune cells and stromal cells were calculated and quantified based on the ESTIMATE *** expressed genes(DEGs)between high and low groups according to immune or stromal scores were screened using the gene expression profile of HCC patients in The Cancer Genome Atlas and were further linked to the prognosis of *** genes were validated in four independent HCC ***-related key genes were identified by a LASSO Cox regression *** HCC patients with a high immune/stromal score had better survival benefits than patients with a low score.A total of 899 DEGs were identified and found to be involved in immune responses and extracellular matrices,147 of which were associated with overall ***,52 of 147 survival-related DEGs were validated in additional ***,ten key genes(STSL2,TMC5,DOK5,RASGRP2,NLRC3,KLRB1,CD5L,CFHR3,ADH1C,and UGT2B15)were selected and used to construct a prognostic gene signature,which presented a good performance in predicting overall *** This study extracted a list of genes associated with tumor microenvironments and the prognosis of HCC,thereby providing several valuable directions for the prognostic prediction and molecular targeted therapy of HCC in the future.

关键词： Hepatocellular carcinoma Tumor microenvironment Differentially expressed genes Overall survival

Petrogenesis of late Cretaceous high Ba-Sr granodiorites,SE Lhasa block,China:implications for the reworking of juvenile crust and continental growth

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Acta Geochimica 2025年第1期44卷 86-111页

作者： Li-Hang Lin Ren-zhi Zhu Shao-Cong Lai jiang-Feng Qin yu Zhu Shao-Wei Zhao Min Liu State Key Laboratory of Continental Dynamics Department of GeologyNorthwest UniversityXi’an 710069China Ministry of Education Key Laboratory of Western China’s Mineral Resources and Geological Engineering School of Earth Science and ResourcesChang’an UniversityXi’an 710054China

The high Ba-Sr rocks can provide significant clues about the evolution of the continent lithosphere,but their petrogenesis remains *** the Late Cretaceous high Ba–Sr granodiorites in the SE Lhasa Block could potentially provide valuable insights into the continent evolution of the Qinghai-Tibet *** U–Pb ages suggest that the granodiorites were emplaced at 87.32±0.43 ***,the high Ba–Sr granodiorites are characterized by elevated K_(2)O+Na_(2)O contents(8.18-8.73 wt%)and K_(2)O/Na_(2)O ratios(0.99-1.25,mostly>1),and belong to high-K calc-alkaline to shoshonitic *** Yonglaga granodiorites show notably high Sr(653-783 ppm)and Ba(1346-1531 ppm)contents,plus high Sr/Y(30.92-38.18)and(La/Yb)_(N)(27.7-34.7)ratios,but low Y(20.0-22.8 ppm)and Yb(1.92-2.19 ppm)contents with absence of negative Eu anomalies(δEu=0.83-0.88),all similar to typical high Ba–Sr *** variable zirconεHf(t)values of-4.58 to+12.97,elevated initial^(87)Sr/^(86)Sr isotopic ratios of 0.707254 to 0.707322 and lowεNd(t)values of-2.8 to-3.6 with decoupling from the Hf system suggest that a metasomatized mantle source included significant recycled ancient *** occurrence of such high Ba–Sr intrusions indicates previous contributions of metasomatized mantle-derived juvenile material to the continents,which imply the growth of continental crust during the Late Cretaceous in the SE *** with regional data,we infer that the underplated mafic magma provides a significant amount of heat,which leads to partial melting of the juvenile *** melting of the metasomatized mantle could produce a juvenile mafic lower crust,from which the high Ba–Sr granitoids were derived from reworking of previous mafic crust during the Late Cretaceous(ca.100-80 Ma)in the SE Lhasa.

关键词： Late Cretaceous High Ba-Sr granodiorites SE Lhasa Growth of continental crust Juvenile crust

Ultra-high-Q photonic crystal nanobeam cavity for etchless lithium niobate on insulator(LNOI)platform

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Opto-Electronic Advances 2025年第1期8卷 59-70页

作者： zhi jiang Cizhe Fang Xu Ran yu Gao Ruiqing Wang jianguo Wang Danyang Yao Xuetao Gan Yan Liu yue Hao Genquan Han State Key Laboratory of Wide-Bandgap Semiconductor Devices and Integrated Technology School of MicroelectronicsXidian UniversityXi’an 710071China Key Laboratory of Light Field Manipulation and Information Acquisition Ministry of Industry and Information Technologyand Shaanxi Key Laboratory of Optical Information TechnologySchool of Physical Science and TechnologyNorthwestern Polytechnical UniversityXi’an 710129China Hangzhou Institute of Technology Xidian UniversityHangzhou 311200China

The expansive spectral coverage and superior optical properties of lithium niobate(LN)offer a comprehensive suite of tools for exploring novel *** high-quality(Q)photonic resonator cavities is crucial for enhancing light-matter ***,this task is challenging as the device performance is heavily dependent on the fabrication quality of the *** this paper,we present experimental validation of an etchless approach to fabricating high-Q photonic crystal nanobeam cavities(PCNBCs).We successfully fabricate PCNBCs with Q factors exceeding 105 while maintaining high transmittance by capitalizing on the low waveguide loss and high fabrication tolerance of TE-polarized ***,the Q factor achieved here exceeds previous reports on etchless LN PCNBCs by over an order of *** from this advancement,we further explore a variety of optical functions,including thermo-optic tuning,optically induced bistability,and Fano line shapes *** findings present promising prospects for a versatile platform technique,facilitating the development of high-performance electro-optic or acousto-optic modulators,optical logic devices,and quantum photonics,highlighting its significant impact in the field of photonic integration.

关键词： photonic crystal nanobeam cavity LNOI platform high Q thermo-optic tuning bistability Fano line shapes

No-go guide for the Hubble tension:Late-time or local-scale new physics

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Science China(Physics,Mechanics & Astronomy) 2025年第2期68卷 73-85页

作者： Lu Huang Shao-jiang Wang Wang-Wei yu CAS Key Laboratory of Theoretical Physics Institute of Theoretical PhysicsChinese Academy of Sciences(CAS)Beijing100190China Asia Pacific Center for Theoretical Physics(APCTP) Pohang37673Korea Max-Planck-Institut für Gravitationsphysik(Albert-Einstein-Institut) HannoverD-30167Germany Leibniz Universität Hannover Hannover30167Germany

The standard model of modern cosmology might be cracked by the recent persistent hot debate on the Hubble-constant(H_(0))tension,which manifests itself as the sound-horizon(r_(s))tension or absolute-magnitude(M_(B))tension if deeming the origin of the Hubble tension from modifying the early or late Universe,*** this study,we achieve a fully model-independent constraint(fitting a model-independent global parameterization to a model-independent inverse distant ladder with a modelindependent high-redshift calibration)on late-time models with strong evidence against homogeneous new physics over theΛ-cold-dark-matter(ΛCDM)*** using this model-independent constraint to calibrate sufficiently local supernovae with corresponding late-time models extrapolated below the homogeneity scale,we find surprisingly that,although both H_(0)tension and MB tension are absent in our local Universe,a combination of H_(0)and M_(B)as the intercept a B of the magnitude-redshift relation exhibits 3~7σtension even for theΛCDM *** aBtension seems to call for local-scale inhomogeneous new physics disguised as local observational systematics.

关键词： Hubble constant inverse distance ladder local Universe

Surface micro-arrays enhancing electromagnetic interference shielding of polydimethylsiloxane/multiwalled carbon nanotubes nanocomposites

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Nano Research 2025年第1期18卷 508-519页

作者： Ke jiang zhi Chen Ji yu Chen Zheng Shan Huang Ming Wang Chongqing Key Laboratory of Soft-Matter Material Manufacturing School of Chemistry and Chemical EngineeringSouthwest UniversityChongqing 400715China School of Mechanics Civil Engineering and ArchitecturesNorthwestern Polytechnical UniversityXi’an 710072China Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory(Rongjiang Laboratory) Jieyang 515200China

Herein,the electromagnetic shielding performance of surface concave-convex(SC)and zig-zag micro-arrays was studied by using a simulation prediction and a three-dimensional(3D)printing custom ***,surface stripe concaveconvex(SSC)and surface cylindrical concave-convex(SCC)micro-arrays with or without zig-zag micro-arrays are designed,and their shielding performance is simulated in multi-bands(C-,X-band).The multiwalled carbon nanotubes/polydimethylsiloxane composites(MWCNT/PDMS)with different SC structures and different electrical conductivity are molded in acrylonitrile-butadiene-styrene copolymer(ABS)molds which are printed by a 3D *** results show that the electromagnetic interference shielding effectiveness(EMI SE)of the samples can be enhanced by constructing the SC micro-arrays with zig-zag micro-arrays,and improving with the increase of conductivity and *** addition,the shielding mechanism of the SC-MWCNT/PDMS composites is investigated and discussed by an electromagnetic simulation.

关键词： surface micro-arrays electrical properties electromagnetic interference(EMI)shielding three-dimensional(3D)printing

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苦瓜多糖对运动力竭小鼠疲劳的干预研究

食品研究与开发 2017年第17期38卷 186-188,224页

作者：于志江河南科技学院河南新乡453003

研究苦瓜多糖对一次性力竭运动后小鼠疲劳缓解及氧化损伤影响。以醇沉水提法制备的苦瓜多糖灌胃小鼠21 d后,采用力竭游泳试验,测定小鼠力竭游泳时间,血清乳酸,乳酸脱氢酶及尿素氮,肝肌糖原及组织(心肌、肝脏)中谷胱甘肽过氧化物酶(gluta... 详细信息

研究苦瓜多糖对一次性力竭运动后小鼠疲劳缓解及氧化损伤影响。以醇沉水提法制备的苦瓜多糖灌胃小鼠21 d后,采用力竭游泳试验,测定小鼠力竭游泳时间,血清乳酸,乳酸脱氢酶及尿素氮,肝肌糖原及组织(心肌、肝脏)中谷胱甘肽过氧化物酶(glutathione peroxidase,GPX)与超氧化物歧化酶(superoxide dismutase,SOD)活力、丙二醛(malondialdehyde,MDA)含量。同力竭对照小鼠比较,苦瓜多糖能延长小鼠负重游泳时间,提高肝脏及肌肉糖原水平,减少运动后血乳酸,尿素氮的堆积,提高乳酸脱氢酶活性。此外,还可提高心脏及肝脏中SOD及GPX活性,降低MDA水平。结果表明苦瓜多糖具有显著的抗疲劳功效,可减轻大强度运动后自由基造成的氧化损伤,促进机体功能恢复。

关键词：苦瓜粗多糖抗疲劳氧化应激力竭