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Journal of Renewable Materials 2020年第5期8卷 535-547页

作者： fei song Puyou Jia Caiying Bo Xiaoli Ren Lihong Hu Yonghong Zhou Institute of Chemical Industry of Forest Products Chinese Academy of ForestryNational Engineering Laboratory for Biomass Chemical UtilizationCo-Innovation Center of Efficient Processing and Utilization of Forest ResourcesKey Laboratory of Chemical Engineering of Forest ProductsNational Forestry and Grassland AdministrationKey Laboratory of Biomass Energy and MaterialsNanjing210042China Nanjing Forestry University Nanjing210037China

In this study,we prepared a series of tung oil phenolic foams(TPF)by a one-pot *** FT-IR and 1H NMR spectra confirm the successful Friedel-Crafts grafting of phenol to the long-chain alkyl group in tung *** TPFs exhibit enhanced mechanical properties,including compressive and flexural strengths of up to 0.278±0.036 MPa and 0.450±0.017 MPa,respectively,which represent increases of 68.75%and 86.72%over those of pure phenolic foam(PF).SEM spectra reveal the TPF microstructure to have uniform hexagonal cell morphology,narrower cell size distribution,and smaller mean cell size,suggesting enhanced mechanical *** TPF total smoke release decreased by 74.23%,indicating that the long alkyl chain significantly improves smoke suppression of the combusting ***,due to the flammability of the alkyl chains,the TPF limiting oxygen index decreases with increasing tung oil ***,TPF exhibits reduced thermal stability and high-temperature charring rate,elevated peak and mean heat release rates,and higher total heat release compared with pure ***,future research will focus on the use of tung oil modified flame retardant to provide more robust phenolic foams.

关键词： Tung oil Friedel-Craft reaction phenolic foams mechanical properties smoke suppression

Spatial-temporal spectrum hole discovery:a hybrid spectrum sensing and geolocation database framework

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Chinese Science Bulletin 2014年第16期59卷 1896-1902页

作者： Jinlong Wang Guoru Ding Qihui Wu Liang Shen fei song College of Communications Engineering PLA University of Science and Technology

A hybrid spectrum sensing and geolocation database framework is proposed to tackle the discovery of spatial-temporal spectrum hole in cognitive radio *** first analyze the advantages and disadvantages of spectrum sensing-based and geolocation database-based approaches respectively,which motivate us to further propose a hybrid protocol framework by effectively integrating the benefits of both spectrum sensing and geolocation ***,in the proposed hybrid approach,the goal is to maximize the utilization of spatialtemporal spectrum hole while satisfying the protection constraints for the primary *** and numerical results demonstrate the superior performance of the proposed hybrid approach over the existing spectrum sensing only and geolocation database only approaches,in terms of interference-free *** article serves as a fundamental framework for advancing the design of hybrid approaches for spatial-temporal spectrum hole discovery.

关键词：位置数据库地理定位混合协议频谱感知框架时空空洞

Recent progress on the frontiers of polyoxometalates structures and applications

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Science China Chemistry 2019年第2期62卷 159-161页

作者： Sai An Jian-Cai Liu Huaiying Zhang Lifu Wu Bo Qi Yu-fei song State Key Laboratory of Chemical Resource Engineering Beijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical Technology

Polyoxometalates (POMs),a class of discrete anionic metal oxides in groups V and VI,are constructed via the con- densation of metal oxide polyhedral (MOx,M=W^vI,Mo^vI, Vv,Nb,Ta,*** x=4-7)with each other in a comer-, edge-,or rarely in a face-sharing manner [1-3].Up to now, the broadening family of POM derivatives ranges from small size clusters to nanoscale giant aggregates,which have shown impressive chemical and physical properties and great potential in fields of catalysis,magnetism,medicine,photochemistry,environment,energy and materials science [4,5].Latest progress on POMs chemistry is directed to the construction of high-nnclearity clusters and the exploration of functional applications in energy chemistry,catalysis,and self-assembly (Figure 1).

关键词： Polyoxometalates discrete metal oxides

Study on Toughening Phenolic Foams in Phosphorus-Containing Tung Oil-Based Derivatives

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Journal of Renewable Materials 2019年第10期7卷 1011-1021页

作者： fei song Puyou Jia Yanan Xiao Caiying Bo Lihong Hu Yonghong Zhou Institute of Chemical Industry of Forest Products Chinese Academy of Forestry(CAF)National Engineering Laboratory for Biomass Chemical UtilizationCo-Innovation Center of Efficient Processing and Utilization of Forest ResourcesKey Laboratory of Chemical Engineering of Forest ProductsNational Forestry and Grassland AdministrationKey Laboratory of Biomass Energy and MaterialsNanjing210042China School of Petroleum and Chemical Engineering Dalian University of TechnologyDalian124221China

Phenolic foams(PFs)as thermal insulation material with outstanding flame retardancy are required to match society’s ever-expanding safety expectations;however,a trade-off exists between flame retardancy and ***,for the first time,we synthesized a novel reactive phosphorus-containing tung-oil-based derivative and used it to toughen PF,resulting in PFs with a combination of excellent mechanical properties and flame *** with pure PF,the modified PFs exhibit enhanced mechanical properties,with specific compressive and flexural strengths as high as 5.67 MPa and 12.46 MPa,which represent increases of 90.67%and 178.7%over those of pure PF,***,the limiting oxygen index(LOI)values of the modified PFs are improved as much as 40.83%.Scanning electron microscopy micrographs show that the microstructure of the modified PFs is better than that of pure PF,with a more uniform cell morphology,a narrower pore size distribution range,and a smaller average pore size,all of which are beneficial to the foam’s mechanical *** study provides a scientific paradigm for the development of advanced PFs based on renewable biological resources.

关键词： Tung oil phenolic foams toughen mechanical properties LOI

Design of wide-range energy material beamline at the Shanghai Synchrotron Radiation Facility

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Nuclear Science and Techniques 2018年第2期29卷 91-102页

作者： Zhen-Hua Chen Fan-fei Sun Ying Zou fei song Shuo Zhang Zheng Jiang Yong Wang Ren-Zhong Tai Shanghai Institute of Applied Physics Chinese Academy of Sciences

We report the design of a wide-range energy material beamline(E-line) with multiple experimental techniques at the Shanghai Synchrotron Radiation *** undulators consisted of an elliptically polarizing undulator and in-vacuum undulator that generate the soft and hard X-rays, respectively. The beamline covered a wide energy range from 130 to 18 ke V with both a high photon flux([ 10^(12) phs/s with exit silt 30 lm in soft X-ray and [ 5 9 10^(12) phs/s in hard X-ray within 0.1%BW bandwidth) and promising resolving power(maximum E/DE [ 15,000 in soft X-ray with exit silt 30 lm and [6000 in hard X-ray). Moreover, the beam spots from the soft and hard X-rays were focused to the same sample position with a high overlap ratio, so that the surfaces, interfaces, and bulk properties were characterized in situ by changing the probing depth.

关键词： Synchrotron radiation Beamline Wide energy range E-line Shanghai Synchrotron Radiation Facility

On the Relation Between Coronal Green Line Brightness and Magnetic Fields Intensity

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Research in Astronomy and Astrophysics 2022年第7期22卷 128-138页

作者： Xue-fei Zhang Yu Liu Ming-Yu Zhao Teng-fei song Jing-Xing Wang Xiao-Bo Li Zi-Han Li Yunnan Observatories Chinese Academy of SciencesKunming 650011China University of Chinese Academy of Sciences Beijing 100049China Yunnan Normal University School of Physics and Electronic InformationKunming 650000China

Two-dimensional(2 D) solar coronal magnetogram is difficult to be measured directly until *** the previous knowledge,a general relation has been noticed that the brighter green-line brightness for corona,the higher coronal magnetic field intensity may correspond *** try to further reveal the relationship between coronal green line brightness and magnetic field intensity,we use the 2 D coronal images observed by Yunnan Observatories Greenline Imaging System(YOGIS) of the 10 cm Lijiang coronagraph and the coronal magnetic field maps calculated from the current-free extrapolations with the photospheric magnetograms taken by Helioseismic and Magnetic Imager(HMI) on board the Solar Dynamics Observatory(SDO) *** our analysis,we identified the coronal loop structures and construct two-dimensional maps of the corresponding magnetic field intensity in the plane of the sky(POS) above the *** derive the correlation coefficients between the coronal brightness and the magnetic field intensity for different heights of coronal *** further use a linear combination of a Gaussian and a quadratic profile to fit the correlation coefficients distribution,finding a largest correlation coefficient of 0.82 near 1.1 R(solar radii) where is almost the top of the closed loop *** the small closed loop system identified,the correlation coefficient distributions crossing and covering the loop are *** also investigate the correlation with extended heliocentric latitude zones and long period of one whole Carrington Rotation,finding again that the maximum correlation coefficient occurs at the same *** is the first time for us to find that the correlation coefficients are high(all are larger than 0.8) at the loop-tops and showing poor correlation coefficients with some fluctuations near the feet of the coronal *** findings indicate that,for the heating of the low-latitude closed loops,both DC(dissipation of currents) and AC(dissipation of Alfvé

关键词： Sun:magnetic fields Sun:corona Stars:coronae Sun:activity Sun:atmosphere Sun:coronal mass ejections(CMEs) Sun:fundamental parameters Sun:heliosphere Sun:UV radiation

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理筋手法减轻兔损伤骨骼肌纤维化的作用机制

中国组织工程研究 2025年第14期29卷 2914-2921页

作者：李开颖魏晓歌赵振宁宋斐杨楠王燕穆静马惠昇宁夏医科大学中医学院宁夏回族自治区银川市750004 宁夏医科大学宁夏少数民族医药现代化教育部重点实验室宁夏回族自治区银川市750004 宁夏区域高发病中西医结合防治研究重点实验室宁夏回族自治区银川市750004

背景:理筋手法能够减少纤维化瘢痕增生,促进骨骼肌修复。但不恰当的激活Wnt/β-catenin信号通路,能加剧损伤骨骼肌纤维化,对骨骼肌修复过程产生不利影响。开展理筋手法对Wnt/β-catenin信号通路的调控作用研究,有利于阐述理筋手法减少... 详细信息

背景:理筋手法能够减少纤维化瘢痕增生,促进骨骼肌修复。但不恰当的激活Wnt/β-catenin信号通路,能加剧损伤骨骼肌纤维化,对骨骼肌修复过程产生不利影响。开展理筋手法对Wnt/β-catenin信号通路的调控作用研究,有利于阐述理筋手法减少纤维化瘢痕增生、促进骨骼肌损伤修复的相关机制。目的:探讨理筋手法促进兔骨骼肌损伤修复的作用机制。方法:45只普通级健康成年日本大耳兔随机分为空白组、模型组和理筋组,每组15只。模型组和理筋组均进行腓肠肌打击造模,理筋组于造模后第3天开始进行理筋手法治疗,1次/d,15 min/次。各组在造模后第7,14,21天分别取5只进行取材。苏木精-伊红染色观察腓肠肌一般形态结构,Masson染色观察腓肠肌胶原纤维含量,Western blot检测腓肠肌Wnt3a、β-catenin、GSK3β、p-GSK3β、TCF、Ⅰ型胶原蛋白、Ⅲ型胶原蛋白表达,RT-PCR检测腓肠肌Wnt3a、β-catenin、TCF mRNA表达,免疫荧光法检测腓肠肌β-catenin的表达,免疫组化法检测腓肠肌Ⅰ型胶原蛋白、Ⅲ型胶原蛋白的表达。结果与结论:①苏木精-伊红染色及Masson染色结果显示:与模型组比较,理筋组各观察点炎性细胞浸润减少,胶原纤维量减少(P<0.001),肌纤维逐渐愈合;②Western blot结果显示:与模型组比较,理筋组各观察点Wnt3a、β-catenin、TCF、Ⅰ型胶原蛋白、Ⅲ型胶原蛋白的蛋白表达量均显著降低(P<0.05),而p-GSK3β/GSK3β比值较模型组则明显升高(P<0.05);③RT-PCR结果显示:与模型组比较,理筋组各观察点Wnt3a、β-catenin、TCF的mRNA表达量均显著降低(P<0.001);④免疫荧光结果显示:与模型组比较,理筋组各观察点β-catenin核表达荧光强度明显降低,且逐渐与空白组相近(P<0.001);⑤免疫组化结果显示:理筋组各观察点Ⅰ型胶原蛋白、Ⅲ型胶原蛋白的表达量相较于模型组均显著降低(P<0.01)。结果表明:理筋手法能够抑制Wnt/β-catenin信号通路的异常激活,减少纤维化瘢痕增生,从而达到促进损伤骨骼肌修复的目的。

关键词：理筋手法筋伤骨骼肌损伤腓肠肌纤维化瘢痕修复 Wnt/β-catenin信号通路

理筋手法调控兔骨骼肌损伤修复中瘢痕形成的作用机制

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中国组织工程研究 2025年第8期29卷 1600-1608页

作者：李开颖魏晓歌宋斐杨楠赵振宁王燕穆静马惠昇宁夏医科大学中医学院宁夏回族自治区银川市750004 宁夏医科大学宁夏少数民族医药现代化教育部重点实验室宁夏回族自治区银川市750004 宁夏区域高发病中西医结合防治研究重点实验室宁夏回族自治区银川市750004

背景:理筋手法能够促进骨骼肌修复,治疗骨骼肌损伤。但骨骼肌损伤在修复过程中的纤维化形成、瘢痕组织增生等与损伤修复质量密切相关。开展理筋手法对纤维化形成、瘢痕组织增生的调控作用研究,有利于阐述理筋手法提高骨骼肌损伤修复质... 详细信息

背景:理筋手法能够促进骨骼肌修复,治疗骨骼肌损伤。但骨骼肌损伤在修复过程中的纤维化形成、瘢痕组织增生等与损伤修复质量密切相关。开展理筋手法对纤维化形成、瘢痕组织增生的调控作用研究,有利于阐述理筋手法提高骨骼肌损伤修复质量的相关机制。目的:探索理筋手法提高兔骨骼肌损伤后修复质量的作用机制,为临床治疗提供科学依据。方法:45只健康成年日本大耳白兔随机分为空白组、模型组、理筋组,每组15只。其中模型组和理筋组均进行腓肠肌打击造模;造模后理筋组于第3天开始进行理筋手法干预,1次/d,15 min/次。各组在造模后的第7,14,21天分别处死5只兔进行观察。苏木精-伊红染色法观察腓肠肌形态及炎性细胞量,Masson染色法观察腓肠肌胶原纤维量,ELISA法检测腓肠肌白细胞介素6和白细胞介素10的表达量,Western blot和RT-PCR检测配对盒基因7、成肌分化因子、肌细胞生成素、肌动蛋白α、转化生长因子β1、Ⅰ型胶原蛋白的蛋白及mRNA表达,免疫组织化学法检测Ⅰ型胶原蛋白的表达。结果与结论:①苏木精-伊红染色及Masson染色结果显示,与模型组比较,理筋组各观察点炎性细胞浸润减少,胶原纤维量减少(P<0.01),肌纤维逐渐愈合;②ELISA结果显示,与模型组比较,理筋组白细胞介素6表达持续降低(P<0.05),而白细胞介素10在造模后第7天时升高(P<0.05),随后呈下降趋势(P<0.05);③Western blot和RT-PCR结果显示,与模型组比较,理筋组造模后第14天配对盒基因7、成肌分化因子、肌细胞生成素的蛋白及mRNA表达量均显著升高(P<0.05),而第21天时却较之前下降(P<0.05);理筋组各观察点肌动蛋白α、转化生长因子β1、Ⅰ型胶原蛋白的蛋白及mRNA表达量相较于模型组均显著降低(P<0.05);④免疫组化结果显示,理筋组各观察点Ⅰ型胶原蛋白的表达量相较于模型组均显著降低(P<0.05);⑤结果表明,理筋手法能够通过抑制炎症、促进肌卫星细胞的增殖分化、减少纤维化的生成,从而提高兔骨骼肌损伤的修复质量。

关键词：理筋手法筋伤骨骼肌损伤炎症肌卫星细胞纤维化瘢痕组织修复质量

Identification of immune feature genes and intercellular profiles in diabetic cardiomyopathy

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World Journal of Diabetes 2024年第10期15卷 2093-2110页

作者： Ze-Qun Zheng Di-Hui Cai Yong-fei song Ningbo Institute of Innovation for Combined Medicine and Engineering The Affiliated Lihuili Hospital of Ningbo UniversityNingbo 315040Zhejiang ProvinceChina Department of Cardiology Clinical Research CenterShantou University Medical CollegeShantou 515041Guangdong ProvinceChina

BACKGROUND Diabetic cardiomyopathy(DCM)is a multifaceted cardiovascular disorder in which immune dysregulation plays a pivotal *** immunological molecular mechanisms underlying DCM are poorly *** To examine the immunological molecular mechanisms of DCM and construct diagnostic and prognostic models of DCM based on immune feature genes(IFGs).METHODS Weighted gene co-expression network analysis along with machine learning methods were employed to pinpoint IFGs within bulk RNA sequencing(RNA-seq)***-sample gene set enrichment analysis(ssGSEA)facilitated the analysis of immune cell *** and prognostic models for these IFGs were developed and assessed in a validation *** expression in the DCM cell model was confirmed through real time-quantitative polymerase chain reaction and western blotting ***,single-cell RNA-seq data provided deeper insights into cellular profiles and *** The overlap between 69 differentially expressed genes in the DCM-associated module and 2483 immune genes yielded 7 differentially expressed immune-related *** IFGs showed good diagnostic and prognostic values in the validation cohort:Proenkephalin(Penk)and retinol binding protein 7(Rbp7),which were highly expressed,and glucagon receptor and inhibin subunit alpha,which were expressed at low levels in DCM patients(all area under the curves>0.9).SsGSEA revealed that IFG-related immune cell infiltration primarily involved type 2 T helper *** expression of Penk(P<0.0001)and Rbp7(P=0.001)was detected in cardiomyocytes and interstitial cells and further confirmed in a DCM cell model in *** events and communication analysis revealed abnormal cellular phenotype transformation and signaling communication in DCM,especially between mesenchymal cells and *** The present study identified Penk and Rbp7 as potential DCM biomarkers,and aberrant mesenchymal-immune cell phenotyp

关键词： Diabetic cardiomyopathy Immune feature genes Proenkephalin Retinol binding protein 7 Immune cell infiltration Intercellular communication

A seven-crystal spectrometer for high-energy resolution X-ray spectroscopy at Shanghai Synchrotron Radiation Facility

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Nuclear Science and Techniques 2024年第9期35卷 82-91页

作者： Bing-Bao Mei Liang-Xin Wang song-Qi Gu Xiao-Zhi Su Shuo Zhang Yao Wei Jing-Yuan Ma Zheng Jiang fei song Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201800China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201204China National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei 230026China

A Johann-type X-ray spectrometer was successfully developed at the hard X-ray branch(in-vacuum undulator with a 24-mm periodic length)of the energy material beamline(E-line)at the Shanghai Synchrotron Radiation Facility(SSRF).This spectrometer was utilized to implement X-ray emission spectroscopy(XES),high-energy resolution fluorescence-detected X-ray absorption spectroscopy(HERFD-XAS),and resonant inelastic X-ray *** spherically bent crystals were positioned on the respective vertical 500-mm-diameter Rowland circles,adopting an area detector to increase the solid angle to 1.75%of 4πsr,facilitating the study of low-concentrate systems under complex reaction *** under the atmosphere pressure,the spectrometer covers the energy region from 3.5 to 18 keV,with the Bragg angle ranging from 73°to 86°during vertical *** offers a promised energy resolution of sub-eV(XES)and super-eV(HERFD-XAS).Generally,these comprehensive core-level spectroscopy methods based on hard X-rays at the E-line with an extremely high photon flux can meet the crucial requirements of a green energy ***,they provide substantial support for scientific advances in fundamental research.

关键词： X-ray emission spectroscopy High-energy-resolution X-ray spectrometer Johann geometry Energy materials SSRF