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Synthesis of Ag@Al_2O_3 Core-shell Structure Nanoparticles and Their Enhancement Effect on Dielectric Properties for Ag@Al_2O_3/Polyimide Nanocomposites

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Journal of Wuhan University of Technology(Materials Science) 2015年第1期30卷 47-50页

作者：翁凌 YAN Liwen LI Hongxia XIA Qianshan liu lizhu Key Laboratory of Engineering Dielectrics and Its Application Ministry of Education Harbin University of Science and Technology School of Materials Science and Engineering Harbin University of Science and Technology

A novel core-shell structure Ag@Al2O3 nano-particles were synthesized and doped into polyimide as conductive fillers to prepare the composite films with high dielectric properties and low dielectric loss. The morphology and structures of the Ag@Al2O3 nano-particles were characterized by transmission electron microscopy （TEM）, X-ray diffraction （XRD）, and UV-visible spectroscopy. All the results proved that the Ag@Al2O3 nano-parficles had a typical core-shell structure, for the Ag particles were coated by Al2O3 shell and the average sizes ofAg@Al2O3 particles were between 30 to 150 nm. The as-prepared Ag@Al2O3 nanoparticles were doped into the polyimide with different mass fractions to fabricate the Ag@Al2O3/PI composite films via in-situ polymerization process. SEM analysis of composite films showed that the Ag@Al2O3 nano- particles homogeneously dispersed in polyimide matrix with nanoseale. As dielectric materials for electronic packaging systems, the Ag@Al2O3/PI composites exhibited appropriate mechanical properties and erthaneed dielectric properties, including greatly enhanced dielectric constant and just a slight increase in dielectric loss. These improvements were attributed to the core-shell structure of fillers and their fine dispersion in the PI matrix.

关键词： core-shell structure polyimide nanocomposites dielectrics

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Preparation and Characterization of Multi Shape ZnO/PVDF Composite Materials

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Journal of Wuhan University of Technology(Materials Science) 2017年第4期32卷 958-962页

作者：翁凌 JU Peihai LI Hongxia YAN Liwen liu lizhu Key Laboratory of Engineering Dielectrics and Its Application Ministry of Education Harbin University of Science and Technology Harbin 150080 China School of Materials Science and Engineering Harbin University of Science and Technology Harbin 150040 China

Two different morphologies of ZnO（lotus-shaped, rod-shaped） and ZnO/PVDF composite materials were prepared. The morphologies of ZnO and composite materials were characterized by scanning electron microscopy（SEM） and transmission electron microscopy（TEM）. Fourier transform infrared spectroscopy（FT-IR）, thermal gravimetry（TG）, and X-ray diffraction（XRD） were also used to characterize the chemical structures and phase composites of ZnO and ZnO/PVDF composite materials. Breakdown voltage, dielectric constant and dielectric loss of ZnO/PVDF composite materials were also tested. Microstructure analysis showed that ZnO nanoparticles dispersed uniformly in the matrix. And the dielectric constant expresses a significantly improvement while the dielectric loss and breakdown voltage expresses no significant change. Moreover, dielectric constant keeps an improvement tendency with increasing content of ZnO.

关键词： polyvinylidene fluoride(PVDF) zinc oxide(ZnO) composite materials morphology dielectric properties

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Effect of Shuanghuanglian Oral Solution on Liver Function in a Mouse Model of Non-alcoholic Steatohepatitis

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Medicinal Plant 2024年第4期15卷 99-100,106页

作者： Lihong GUO lizhu liu Weiwei QIN Yaxian CHENG Sleep Psychosomatic Medicine Center Taihe HospitalAffiliated Hospital of Hubei University of MedicineShiyan 442000China

[Objectives]To observe the effect of Shuanghuanglian oral solution on liver function in BABL/cJ mice in non-alcoholic steatohepatitis(NASH)model.[Methods]The BABL/cJ mice were randomly divided into three groups:a control group,a model group,and an experimental *** experimental group was administered with 10%Shuanghuanglian oral solution at a dose of 0.1 mL/(10 g·d),while the control group and experimental group received an equivalent dosage of normal *** three groups were treated for a period of 28 *** liver function of the mice in each group was examined after the treatment.[Results]The body mass,liver index,triacylglycerol(TG),total cholesterol(TC),aspartate aminotransferase(AST),and alanine aminotransferase(ALT)levels were all significantly reduced compared to the model group(P<0.05).[Conclusions]Shuanghuanglian oral solution has a beneficial effect on liver function in BABL/cJ mice.

关键词： BABL/cJ mice Shuanghuanglian oral solution Non-alcoholic steatohepatitis model Liver function

The analysis of microscopy imaging on liquid crystalline components of the cell nucleus

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Journal of Biomedical Science and Engineering 2012年第6期5卷 307-314页

作者： Shiyong Sun Mingxue liu Qunwei Dai Faqin Dong lizhu liu Tingting Huo Key Laboratory of Waste Solid Treatment and Resource Recycle of Ministry of Education Southwest University of Science and Technology Mianyang China

Dinoflagellates nuclei allow for liquid crystalline characterization without core histones. In this study, nuclei were isolated from the athecate Karenia dinoflagellate species with minimum destruction to their native structure during preparation procedures. The liquid crystalline nuclei were studied by microscopy techniques of Metripol birefringence microscopy, Confocal Laser Scanning Microscopy (CLSM) and synchrotron radiation-based hard X-ray Microscopy with computed tomography, respectively. The 3D reconstruction techniques of hard X-ray tomography and CLSM were also discussed. The important biophysical parameters of the interspaces between chromosomes, nuclear surface areas and chromosome-occupied volumes were calculated from a 3D rendering of a reconstructed nucleus. The results of calculated average chromosomal DNA concentration of dinoflagellate was consistent with the concentration which can spontaneously assemble into the cholesteric liquid crystal phase in vitro.

关键词： Liquid Crystal Cellular Nucleus Microscopy 3D Reconstruction Genomic Condensation

Clinical Observation of Huatanjieyu Granule in the Treatment of Post-stroke Depression

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Medicinal Plant 2020年第3期11卷 87-89页

作者： Xi WANG Chunqi AI lizhu liu Dongyu XIA Qin GONG Sleep Disorder Center of Shiyan Taihe Hospital (Affiliated Hospital of Hubei University of Medicine) Shiyan 442000 China Shiyan Traditional Chinese Medicine Hospital Shiyan 442000 China Mental Health Center of Shiyan Taihe Hospital (Affiliated Hospital of Hubei University of Medicine) Shiyan 442000 China

[Objectives]To observe the clinical effect of Huatanjieyu granule on patients with post-stroke depression.[Methods]Total 76 patients with confirmed post-stroke depression were randomly divided into two groups(treatment group and control group)according to the double-blind *** treatment group(38 cases)was treated with Huatanjieyu granule combined with escitalopram,and the control group(38 cases)was treated with escitalopram *** course of treatment was 6 *** clinical efficacy,Hamilton Depression Scale(HAMD)and Treatment Emergent Symptom Scale(TESS)scores were compared,and blood,liver function,renal function and electrocardiogram were examined.[Results]The scores of HAMD and TESS in patients with post-stroke depression were significantly decreased by Huatanjieyu granule,and there were no obvious side *** total effective rate was 92.1%in the treatment group and 76.3%in the control *** was significant difference between the two groups(P<0.01).[Conclusions]Huatanjieyu granule was effective in the treatment of post-stroke depression with little side effects and was easy to be accepted by patients.

关键词： Traditional Chinese medicine Huatanjieyu granule Post-stroke depression Clinical observation

Experimental Study on the Repair Effect of Xianlinggubao Capsule on Osteoporotic Vertebral Compression Fracture in Rabbits

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Medicinal Plant 2023年第6期14卷 64-66,70页

作者： Lihong GUO lizhu liu Xi WANG Heng LIAO Jingping MU Center for Sleep Psychosomatic Medicine Taihe Hospital of Shiyan City(Affiliated Hospital of Hubei University of Medicine)Shiyan 442000China

[Objectives]To observe the effect of Xianlinggubao Capsule on osteoporotic vertebral compression fracture(OVCF)in rabbits and the influence mechanism of the repair of fractures.[Methods]Female June age 30 rabbits were randomly divided into control group,model control group and Xianlinggubao *** bilateral ovariectomy,the model control group and Xianlinggubao group were injected with dexamethasone continuously for 4 weeks,and then the OVCF compound model was established by *** Xianlinggubao group was treated with Xianlinggubao at a dose of 300 mg/(kg·d)for 60 d,while the blank control group and the model control group were treated with the same amount of normal saline for 60 *** number of blood vessels and the expression of bone morphogenetic protein-2(BMP-2)were detected by immunohistochemical staining and the bone mineral density(BMD)in the callus of the third lumbar fracture area of rabbits was *** content of serum phosphorus(P),alkaline phosphatase(ALP)and total calcium(TCa)in rabbit venous blood were measured by automatic biochemical *** content of vascular endothelial growth factor(VEGF)and platelet-derived growth factor(PDGF)in rabbit venous blood were measured by ELISA kit.[Results]The number of blood vessels and the expression of BMP-2 in the callus of the third lumbar fracture area of rabbits was high in Xianlinggubao group,the content of serum P,ALP,TCa,VEGF and PDGF was obviously increased,BMD was obviously increased,the bone microstructure of the third lumbar vertebrae fracture area of rabbits was basically *** with the model control group(P<0.05),the difference was statistically significant.[Conclusions]Xianlinggubao Capsule can increase calcium and phosphorus deposition,promote the formation of blood vessels in the fracture area of OVCF in rabbits,and have a strong repair effect on OVCF in rabbits.

关键词： Rabbit Xianlinggubao Capsule Osteoporosis Compound model of vertebral compression fracture Repair

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防水用聚脲绝缘涂料的制备及性能研究

材料导报 2018年第16期32卷 2723-2727页

作者：罗学禹刘立柱哈尔滨理工大学材料科学与工程学院哈尔滨150040 哈尔滨理工大学工程电介质及其应用技术教育部重点实验室哈尔滨150080

以六亚甲基二异氰酸酯(HDI)三聚体、改性端氨基聚醚(D2000)及二甲硫基甲苯二胺(E300)等扩链剂为原料,通过调整改性D2000和扩链剂的物质的量比制备了聚脲防水涂膜。通过FT-IR表征了端氨基聚醚的改性机理和聚脲涂膜的分子结构;通过对比涂... 详细信息

以六亚甲基二异氰酸酯(HDI)三聚体、改性端氨基聚醚(D2000)及二甲硫基甲苯二胺(E300)等扩链剂为原料,通过调整改性D2000和扩链剂的物质的量比制备了聚脲防水涂膜。通过FT-IR表征了端氨基聚醚的改性机理和聚脲涂膜的分子结构;通过对比涂膜在50℃水中浸渍前、后及干燥后的体积电阻率的变化发现,聚脲涂膜具有优良的耐水、隔水能力;通过击穿电压、硬度和拉伸强度测试发现,聚脲涂膜的绝缘性能和机械强度随着硬段含量的增加而提高,同时以E300作为扩链剂制备的聚脲具有较好的综合性能;结合断裂伸长率测试发现,当E300在R组分中的摩尔分数为86%时,涂膜具有较好的延展性,其断裂伸长率为28.72%,此时,涂膜的体积电阻率为8.2×1010Ω·m,击穿场强为96.73kV/mm,邵氏硬度为52。

关键词：聚脲涂膜耐水性绝缘性能力学性能

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CLASSIFIED STUDIES ON POTAMOGETON L. IN INNER MONGOLIA BY MORPHOLOGICAL AND ANATOMICAL METHODS

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西北植物学报 1983年第1期 9-17页

作者： Ma Yuchuan Tu lizhu liu Guobou Cao Jiangying (Biology Department, Inner Mongolia University)

The authors have done some researches on the leaves and stems of potamogeton L. in Inner Mongolia by comparative classification by using the methods of morphology and anatomy. After having studied we found that they are ten species in Inner Mongolia. Among them, five species are belonged to cosmopolitans P. perfoliatus L., P. crispus L., P. pectinatus L., P. panormitanus Biv. and P. lucens L.; two eastern Asian sppcies: P. distinctus A. Benn. ao(?) P. malaianus Miq.; P. vaseyi Robbins is an East Asian-North American species) P. zosterifolius Schum. is an Eurasian species; one new species, P. acifolius Ma, is endemic to lnner Mongolia.

关键词：眼子菜属分类研究解剖学植物形态学生物形态学 CLASSIFIED STUDIES ON POTAMOGETON L IN INNER MONGOLIA BY MORPHOLOGICAL AND ANATOMICAL METHODS 马毓泉

The Characteristics of the Drug Composition in the Treatment of Insomnia by External Bath Prescription of Traditional Chinese Medicine

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Medicinal Plant 2020年第4期11卷 88-89,92页

作者： Xiong CHEN Xi WANG lizhu liu Dongyu XIA Gang LI Chunqi AI Mental Health Center of Shiyan Taihe Hospital (Affiliated Hospital of Hubei University of Medicine) Shiyan 442000 China Sleep Disorders Center of Shiyan Taihe Hospital (Affiliated Hospital of Hubei University of Medicine) Shiyan 442000 China Mental Health Center Chinese Medicine Hospital of Zhuxi Zhuxi 442300 China

[Objectives]The research aimed to carry out a retrospective analysis on the characteristics of the drug composition in the treatment of insomnia by external bath prescription of traditional Chinese medicine,to provide ideas for the research and development of new Chinese medicine for insomnia.[Methods]The external bath prescriptions of traditional Chinese medicine related to insomnia were collected,and the appearance frequency of drug was analyzed,and statistical analysis of drug with high appearance frequency was conducted.[Results]In the external bath prescriptions of traditional Chinese medicine related to insomnia,the top ten herbs with high appearance frequency were as follows:Chaozaoren,Drgonsbones,Margaritifera,Yejiaoteng,Schisandrae Chinensis Fructus,Lilii Bulbus,Platycladi Semen,Poria,Coptidis Rhizoma,and Scutellariae *** to the classification by efficacy,these herbs mostly have the effects of calming,nourishing and heat clearing.[Conclusions]Traditional Chinese medicine is most closely related to heart,kidney,liver and other *** and sedative drugs should be chosen,which corresponds with the understanding on pathogenesis of insomnia in traditional Chinese medical science,and embodies the characteristics of external bath prescription of traditional Chinese medicine in the treatment of insomnia.

关键词： Traditional Chinese medicine External treatment of traditional Chinese medicine Prescription Insomnia