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Journal of Materials Science & Technology 2022年第4期99卷 1-8页

作者： Renquan Wang tingchuan zhou Zhiyong Zhong College of Materials Science and Engineering Sichuan UniversityChengdu 610065China Key Laboratory of Advanced Special Materials&Technology Ministry of EducationChengdu 610065China State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of ChinaChengdu 610054China

Low-temperature fired ferrites or ceramics are usually processed by using low-melting materials(e.g.,glasses,oxides,and eutectics)as sintering aids to obtain compact and uniform ***,a dual-strategy of co-doping with V_(2)O_(5)and Sb_(2)O_(3)oxides and forming a eutectic liquid phase has been employed to reduce the melting point of LiZn ferrite ceramics in an effective *** results indicate that miniscule amounts of V_(2)O_(5)and Sb_(2)O_(3)co-doping contribute in producing dense and uniform microstructures with enhanced magnetic performance by low-temperature *** phase structural and microstructural evolutions have been studied in *** their correlations with magnetic properties have been *** magnetic performance(B_(s)=475.4 mT,M_(s)=82.51 emu/g,B_(r)/B_(s)=0.85,H_(c)=2.2 Oe,ΔH=153.8 Oe)of the LiZn-based ferrite ceramics is achieved by optimized composition and microstructure,which shows great potential for microwave applications including phase shifters and *** importantly,such a co-doping strategy can be also extended to other material systems,like dielectric ceramics,hexagonal ferrites or piezoelectric ceramics.

关键词： Low-temperature firing Eutectic liquid phase Magnetic properties Uniform microstructure FMR line width

碳黑含量对放电等离子烧结Fe-Cr-C/TiCN复合材料组织和耐磨性的影响

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稀有金属材料与工程 2021年第7期50卷 2273-2280页

作者：李学军刘颖叶金文周廷川陈道颖四川大学材料科学与工程学院四川成都610065

采用机械合金化和放电等离子烧结法制备了不同碳含量的Fe-Cr-C/TiCN复合材料。通过扫描电镜、X射线衍射、维氏硬度和球-盘式摩擦试验,系统地研究了碳含量对Fe-Cr-C/TiCN复合材料组织和磨损性能的影响。结果表明,在含碳量为1.0%~5.0%(质... 详细信息

采用机械合金化和放电等离子烧结法制备了不同碳含量的Fe-Cr-C/TiCN复合材料。通过扫描电镜、X射线衍射、维氏硬度和球-盘式摩擦试验,系统地研究了碳含量对Fe-Cr-C/TiCN复合材料组织和磨损性能的影响。结果表明,在含碳量为1.0%~5.0%(质量分数,下同)的烧结样品中形成了(Cr, Fe)7C3碳化物,而当碳含量达到4.0%~5.0%时,出现了(Cr, Fe)3C相。碳含量对Fe-Cr-C/TiCN复合材料的组织均匀性和致密化有着较为重要的影响,当烧结温度为~1000℃时,致密度由未加碳时的95.0%提高到的99.7%(含碳量为3.0%),说明已实现了完全致密化。当含碳量为3.0%时,维氏硬度达到11 940 MPa。此外,添加适量的碳(3.0%)有助于获得良好的磨损性能,即摩擦系数波动范围小,平均摩擦系数为0.320,磨损率为6.8×10^(-4) mm^(3)·N^(-1)·m^(-1)。

关键词： Fe-Cr-C/TiCN复合材料碳放电等离子烧结显微组织和耐磨性

CaO-ZnO-B_2O_3低温烧结LiZn铁氧体旋磁性能研究

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压电与声光 2015年第1期37卷 88-91,95页

作者：王明杨青慧张怀武贾利军廖玉龙苏桦周廷川电子科技大学电子薄膜与集成器件国家重点实验室四川成都610054

用固相法制备Li0.45Zn0.3Ti0.2Mn0.03Mn0.03Fe1.99O4铁氧体,研究了CaO-ZnO-B2O3(CZB)玻璃助烧剂对磁性能和结构的影响。结果表明,适量的CZB玻璃相可促进固相反应,显著降低烧结温度。通过X线衍射(XRD)和扫描电镜(SEM)分析表明,CZB玻璃没... 详细信息

用固相法制备Li0.45Zn0.3Ti0.2Mn0.03Mn0.03Fe1.99O4铁氧体,研究了CaO-ZnO-B2O3(CZB)玻璃助烧剂对磁性能和结构的影响。结果表明,适量的CZB玻璃相可促进固相反应,显著降低烧结温度。通过X线衍射(XRD)和扫描电镜(SEM)分析表明,CZB玻璃没有影响LiZn铁氧体的尖晶石相结构,且其可促进晶粒生长。磁性能变化规律表明,CZB的质量分数为0.25%时,饱和磁感应强度(Bs)达最大,矫顽力(Hc)降低。Hc在质量分数为2.5%时达到最小,随后有所上升。微掺杂时,毛细管力起主导作用,少量掺杂时,液相中的扩散起主导作用,两者都促进了固相反应。过量掺杂时,玻璃相阻碍晶粒生长,各项异性场增大,导致Bs下降、Hc和铁磁共振线宽(ΔH)增大。添加CZB的LiZn铁氧体在910℃时具有较好的磁性能,可兼容低温共烧技术应用于移相器的设计。

关键词： LiZn铁氧体 CZB玻璃低温共烧移相器晶粒生长液相

CD146在卵巢上皮性癌中的表达及临床意义

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新疆医科大学学报 2017年第6期40卷 759-761页

作者：姚立丽戚婷婷熊廷川美丽帕周萍新疆医科大学附属肿瘤医院妇科乌鲁木齐830011

目的探讨卵巢上皮性癌中CD146的表达及其与临床病理特征的相关性。方法收集20例正常卵巢组织和20例卵巢上皮性癌组织标本,采用PV-9000免疫组织化学法检测CD146的表达,分析CD146表达与卵巢上皮性癌临床病理特征的相关性。结果正常卵巢组... 详细信息

目的探讨卵巢上皮性癌中CD146的表达及其与临床病理特征的相关性。方法收集20例正常卵巢组织和20例卵巢上皮性癌组织标本,采用PV-9000免疫组织化学法检测CD146的表达,分析CD146表达与卵巢上皮性癌临床病理特征的相关性。结果正常卵巢组织及卵巢上皮性癌组织中CD146的表达阳性率分别为10%和90%,卵巢上皮性癌组织中CD146表达阳性率较正常卵巢组织明显增高,差异有统计学意义(P0.05)。结论 CD146的高表达与卵巢上皮性癌的发生、发展有关,有可能是其诊断、术后随诊及靶向治疗的潜在分子。

关键词： CD146 卵巢上皮性癌免疫组织化学

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屏障环境动物实验室动态参数验证的重要性

检验医学与临床 2024年第S1期21卷 80-84页

作者：张炜谭莹师廷川符跃明师冰云南省药物研究所云南昆明650111 云南省中药和民族药新药创制企业重点实验室云南昆明650111

科学、准确的实验数据离不开规范、科学可验证的实验环境。方法本文以屏障系统动物实验室的环境动态参数包括温湿度、空气净化、实验室压差、臭气浓度、环境消毒的验证目的、原理与方法、重要性进行论述。结果动物实验室参数处于动态变... 详细信息

科学、准确的实验数据离不开规范、科学可验证的实验环境。方法本文以屏障系统动物实验室的环境动态参数包括温湿度、空气净化、实验室压差、臭气浓度、环境消毒的验证目的、原理与方法、重要性进行论述。结果动物实验室参数处于动态变化,实验室参数通过影响实验动物从而影响实验结果,尤其是屏障环境下饲养的实验动物更为敏感。结论以上参数分别会对实验动物都产生重要影响,因此是实验室环境控制的重要参数,参数验证方法的关注点包括参数的准确性、精密度、灵敏度、代表性,以保障日常检测数据能够科学、准确的表征实验室环境,从而排除环境参数对实验动物试验结果的干扰。

关键词：屏障环境动物实验室参数验证

High-Field-Strength Elements in Mafic Volcanics from North China Craton: Implications for Archean-Proterozoic Boundary and Source Composition

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Journal of Earth Science 1998年第2期17卷 17-23页

作者： Liu Yongsheng Gao Shan Luo tingchuan Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074

Archean to Cenozoic mafic volcanic rocks from the North China craton are studied. They show Archean Proterozoic (Ar Pt) boundary and geochemical anomalies in Cenozoic basalts. Proterozoic mafic volcanics are enriched in most of the high field strength elements (HFSE) compared with Archean ones. Nb, Ta and Th show a distinct sequence of incompatibility in Archean and Proterozoic. The Cenozoic basalts are enriched in HFSE and Ni and their REEs are strongly differentiated with positive Eu anomalies ( δ (Eu)=1.14). The Ar Pt boundary could be related to change in oxygen fugacity and requires an increasing importance of enriched mantle source. The geochemistry of Cenozoic basalts implies a mantle source similar to OIB. Residuum from subducting partial melting of old basaltic oceanic crust and continental crust is likely to contribute to the formation of the enriched mantle.

关键词： mafic volcanic rocks high field strength element Archean Proterozoic boundary enriched mantle.

lncRNA AC005224.4/miR-140-3p/SNAI2 regulating axis facilitates the invasion and metastasis of ovarian cancer through epithelial-mesenchymal transition

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Chinese Medical Journal 2023年第9期136卷 1098-1110页

作者： tingchuan Xiong Yinghong Wang Yuan Zhang Jianlin Yuan Changjun Zhu Wei Jiang Department of Gynecologic Surgery The Third Affiliated Teaching Hospital of Xinjiang Medical University(Affiliated Cancer Hospital)XinjiangUrumqi 830011China Center of Heath Management the First Affiliated Hospital of Xinjiang Medical UniversityXinjiangUrumqi 830011China Department of Clinical Laboratory The Third Affiliated Teaching Hospital of Xinjiang Medical University(Affiliated Cancer Hospital)XinjiangUrumqi 830011China Laboratory of Molecular and Cellular Systems Biology College of Life ScienceTianjin Normal UniversityTianjin 300387China Tianjin Key Laboratory of Animal and Plant Resistance College of Life SciencesTianjin Normal UniversityTianjin 300387China The Third Affiliated Teaching Hospital of Xinjiang Medical University(Affiliated Cancer Hospital) XinjiangUrumqi 830011China State Key Laboratory of Molecular Oncology National Cancer center Cancer HospitalChinese Academy of Medical SciencesBeijing 100021China

Background:Ovarian cancer is one of the most widespread malignant diseases of the female reproductive system *** plurality of ovarian cancer is diagnosed with metastasis in the abdominal ***-mesenchymal transition(EMT)exerts a vital role in tumor cell ***,it remains unclear whether long non-coding RNA(lncRNA)are implicated in EMT and influence ovarian cancer cell invasion and *** study was designed to investigate the impacts of lncRNA AC005224.4 on ovarian ***:LncRNA AC005224.4,miR-140-3p,and snail family transcriptional repressor 2(SNAI2)expression levels in ovarian cancer and normal ovarian tissues were determined using real-time quantitative polymerase chain reaction(qRT-PCR).Cell Counting Kit-8(CCK-8)and Transwell(migration and invasion)assays were conducted to measure SKOV3 and CAOV-3 cell proliferation and metastasis.E-cadherin,N-cadherin,Snail,and Vimentin contents were detected using Western *** mouse xenograft assay was utilized to validate AC005224.4 effects in ***-luciferase reporter gene assay confirmed the targeted relationship between miR-140-3p and AC005224.4 or ***:AC005224.4 and SNAI2 upregulation and miR-140-3p downregulation were observed in ovarian cancer tissues and *** of AC005224.4 observably moderated SKOV3 and CAOV-3 cell proliferation,migration,invasion,and EMT process in vitro and impaired the tumorigenesis in ***-140-3p was a target of AC005224.4 and its reduced expression level was mediated by ***-140-3p mimics decreased the proliferation,migration,and invasion of ovarian cancer ***2 was identified as a novel target of miR-140-3p and its expression level was promoted by either AC005224.4 overexpression or miR-140-3p *** of SNAI2 also facilitated ovarian cancer cell viability and ***:AC005224.4 was confirmed as an oncogene via sponging miR-140-3p and promoted SNAI2 expression,contrib

关键词： Epithelial-mesenchymal transition LncRNA AC005224.4 Ovarian cancer miR-140-3p Tumor metastasis

Geotectonic Subdivision and Paleozoic Subduction and Collision Orogeny of East Qinling and Its Adjacent Regions:Evidence from Geochemical Research

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Journal of Earth Science 1991年第1期10卷 4-20页

作者： Zhang Benren Ouyang Jianping Lou tingchuan Gao Shan Li Zejiu Han YinwenChina University of Geosciences , Wuhan 430074

The regional lithospheric chemical heterogeneity in-ers that the East Qinling and its adjacent cratonic re-ions , as suggested by some authors , belong to two eotectonic units,the North China subdomain including he North China Craton and its southern continental largin (the North Qinling Belt), and the Yangtzean ubdomain comprising the Yangtze Craton and its torthern continental margin (the South Qinh'ng Belt). In the North Qinling Belt the metamorphosed olcanic rocks and graywackes of the Early Paleozoic Oanfeng Group south of the Early Proterozoic Qinling Froup show geochemical characteristics resembling hose of the arc volcanics and arc graywackes -espectively. The Early Paleozoic granites intruding in he Qinling Group also show similar geochemical features and similar compositional polarities to the arc-type granites . The Erlangping Group north of the Qinling Group is a volcanic-sedimentary sequence produced in an Early Paleozoic back - arc basin based on geochemical evidence . It is therefore believed that the North Qinling Belt comprised the active continental margin of the North China Craton , beneath which the ancient Qinling oceanic plate underthrusted and was consumed from 480 to 380Ma ago . The South Qinling Belt is generally considered to be a passive continental margin of the Yangtze Craton on which developed the thick Sinian and Paleozoic sediments of continental shelf and continental slope fades . The source of fine -grained clastic sedimentary rocks of various geological periods has been geochemically *** result demonstrates that the terrigenous elastics of the South Qinling Belt came only from the Yangtze Craton prior to the Silurian , and since then began to be fed by both the Yangtze Craton and the North Qinling . The Devonian sediments display a clear two - component mixing model in their source material . The change in the source materi-al strongly suggests that the Yangtze passive continental margin approached the active continental ma

关键词： East Qinling ,subduction orogeny col- lision orogeny regional lithosphere .

Feldspar Lead Isotopic Composition of Granitoids from the Eastern Qinling Orogenic Belt and Their Tectonic Significance

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Acta Geologica Sinica(English Edition) 1997年第2期71卷 171-179页

作者： Zhang Hongfei Zhang Benren Zhao Zhidan Luo tingchuan and Chen Yuelong Department of Geochemistry, China University of Geosciences, Wuhan, Hubei Department of Geochemistry China University of Geosciences Wuhan Hubei [?]Department of Geochemistry China University of Geosciences Wuhan Hubei 430074.

This paper reports 48 feldspar lead isotope analyses from 27 granitic intrusions,which formed from the Late Proterozic to Mesozoic within the Eastern Qinling oregenic belt. Itis found that the granitic rocks of South Qinling are characterized by a strong block-effect anddepletion in U-Pb and Th-Pb, showing that these rocks came from the same lead isotopetectono-geochemical province, while those of North Qinling are characterized by higher U-Pband Th-Pb for Late Proterozoic to Early Paleozoic ones and lower U-Pb and Th-Pb forLate-Palaeozoic and younger ones in their feldspar lead isotopic composition. In the NorthQinling block, lead isotopic signatures reflect that the source of granitic magma had changedsince the Late Palaeozoic. Comparison of feldspar lead isotopic composition between SouthQinling and North Qinling shows that there is marked difference in lead isotopic compositionfor pre-Palaeozoic granitoids, indicating that the South Qinling and the North Qinling blocksbelong to different tectonic units, but the similarities in lead isotopic composition are quiteclear, which indicates that the South Qinling block had been welded with the North Qinlingblock and that the magma sources of both blocks were identical. The analysis provides directevidence for underplating of the continental crust of South Qinling beneath the North Qinlingblock in the continent-continent interaction stage of the Eastern Qinling oregenic belt.

关键词： Eastern Qinling orogenic belt granitic rock feldspar Pb isotopic composition tectonic significance

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图书馆“软环境”建设刍议

图书馆建设 2005年第5期 51-53页

作者：张廷川贵州师范大学图书馆贵州贵阳550001

图书馆“软环境”是指客观存在的、主要由工作人员控制和把握的、以潜移默化的方式对读者利用图书馆产生实际影响的各种要素,“软环境”建设是图书馆建设中极为重要的方面。本文论述了图书馆的“软环境”3个层面的内容、图书馆“软环境... 详细信息

图书馆“软环境”是指客观存在的、主要由工作人员控制和把握的、以潜移默化的方式对读者利用图书馆产生实际影响的各种要素,“软环境”建设是图书馆建设中极为重要的方面。本文论述了图书馆的“软环境”3个层面的内容、图书馆“软环境”建设的措施,以及在构建过程中应处理好的几个关系。

关键词：图书馆软环境建设