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Effect of Voltage and Gauge of Electrostatic Plate on Card Sliver Quality 被引量:1
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作者 曹继鹏 王瑞 +1 位作者 孙鹏子 钟智丽 《Journal of Donghua University(English Edition)》 EI CAS 2008年第5期500-503,共4页
In order to find the effect of state device installed on a carding machine on card sliver quality, card slivers produced in conditions of different voltages and gauges were tested by USTER AFIS. The results show that,... In order to find the effect of state device installed on a carding machine on card sliver quality, card slivers produced in conditions of different voltages and gauges were tested by USTER AFIS. The results show that, when the gauge is 1 nun, most parameters of card sliver quality are better when voltage is 600 V than those when no voltage is applied. The contents of nep, trash, visible foreign matter (VFM) and short fiber content by number (SFCn), short fiber content by weight (SFCw), immature fiber content (IFC) of card sliver decrease by 5.9%, 16.7%, 12.5%, 5.3%, 4.8% and 1.6%, respectively, but seed coat nep (SCN) content of card sliver doesn't decrease. When the electrostatic plate gauge is 2 mm and electrostatic voltage is 4000 V, the removal efficiency of neps and SCN is remarkable, decreasing by 8.7% and 25% respectively. Card sliver quality is hardly improved under any voltage when the gauge between electrostatic plate and cylinder is 3mm. 展开更多
关键词 carding machine web cleaner with electrostatic device electrostatic voltage short fiber of card sliver neps of card sliver trash of card sliver
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离心泵网格划分中Sliver单元的消除 被引量:5
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作者 刘厚林 董亮 +2 位作者 谈明高 王勇 王凯 《农业工程学报》 EI CAS CSCD 北大核心 2010年第11期103-107,共5页
Sliver单元的存在严重影响着离心泵网格的质量。针对这一问题研究了离心泵网格划分中可能出现Sliver单元的位置。介绍了目前两种主要Sliver单元消除方法并总结了这两种方法的优缺点,重点分析了通过加密消除Sliver单元算法的原理,指出现... Sliver单元的存在严重影响着离心泵网格的质量。针对这一问题研究了离心泵网格划分中可能出现Sliver单元的位置。介绍了目前两种主要Sliver单元消除方法并总结了这两种方法的优缺点,重点分析了通过加密消除Sliver单元算法的原理,指出现有算法并不能完全消除Sliver单元。对一种现有较优的消除算法进行了改进,优化了其判断Sliver单元的准则,从而使其能在加密后完全消除Sliver单元,进而显著地提高了网格的总体质量,并将该改进算法应用于离心泵网格划分中。实例验证,改进后的算法严密有效、执行效率高,且易于实现。 展开更多
关键词 离心泵 网格生成 算法 计算流体动力学 sliver单元消除 网格加密 算法改进
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Distribution characteristics of inclusions along with the surface sliver defect on the exposed panel of automobile:A quantitative electrolysis method 被引量:1
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作者 Xiao-qian Pan Jian Yang +1 位作者 Joohyun Park Hideki Ono 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2020年第11期1489-1498,共10页
The specific distribution characteristics of inclusions along with the sliver defect were analyzed in detail to explain the formation mechanism of the sliver defect on the automobile exposed panel surface.A quantitati... The specific distribution characteristics of inclusions along with the sliver defect were analyzed in detail to explain the formation mechanism of the sliver defect on the automobile exposed panel surface.A quantitative electrolysis method was used to compare and evaluate the three-dimensional morphology,size,composition,quantity,and distribution of inclusions in the defect and non-defect zone of automobile exposed panel.The Al2O3 inclusions were observed to be aggregated or chain-like shape along with the sliver defect of about 3–10μm.The aggregation sections of the Al2O3 inclusions are distributed discretely along the rolling direction,with a spacing of 3–7 mm,a length of 6–7 mm,and a width of about 3 mm.The inclusion area part is 0.04%–0.16%with an average value of 0.08%,the inclusion number density is 40 mm−2 and the inclusion average spacing is 25.13μm.The inclusion spacing is approximately 40–160μm,with an average value of 68.76μm in chain-like inclusion parts.The average area fraction and number density of inclusions in the non-defect region were reduced to about 0.002%and 1–2 mm^−2,respectively,with the inclusion spacing of 400μm and the size of Al2O3 being 1–3μm. 展开更多
关键词 automobile exposed panel sliver defect quantitative electrolysis three-dimensional inclusions aggregated inclusions chain-like inclusions
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Control on Gradient Adhesive Loading of Porous Laminate:Effects on Multiple Performance of Composites with Bamboo Bundle and Sliver
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作者 Jianchao Deng Haiying Zhou +2 位作者 Fuming Chen Shuangbao Zhang Ge Wang 《Journal of Renewable Materials》 SCIE EI 2021年第9期1555-1570,共16页
Elementary units“bamboo bundle”and“bamboo sliver”were processed and cross-linked as“bamboo-bundle veneer(BBV)”and“bamboo-sliver veneer(BSV)”for preparation of laminated composites.The concept of“high-content-... Elementary units“bamboo bundle”and“bamboo sliver”were processed and cross-linked as“bamboo-bundle veneer(BBV)”and“bamboo-sliver veneer(BSV)”for preparation of laminated composites.The concept of“high-content-adhesive surface treatment”was raised to improve boards’performance,rather than increasing adhesive absorption of every layer’s porous unit.That is,some BBVs experienced an extra“dipping&drying”to absorb more resin(named“HBBV”).The effect of the amount of knitting threads was also discussed for influencing BBV’s quality.Results indicated that light transmittance of BBVs decreased as the amount of threads added from 3 to 8,while mechanical stiffness increased.Adding two skin layers of HBBVs symmetrically was helpful to enhance 24-hour underwater and 28-hour“boil-dry-boil”dimensional stability for boards with BSVs as core,while more than two pairs of HBBVs were needed to improve 28-hour“boil-dry-boil”dimensional stability of boards with BBVs as core.Two symmetrical surface layers of BBVs/HBBVs provided BSV-boards/BBV-boards with greater bending resistance,while such“surface treatment”would not raise shearing strength of BSV-boards upon 28-hour“boil-dry-boil”treatment.Besides,the data obtained from drop-hammer impact test indicated that more than two pair of surface BBVs or HBBVs were required for significant improvement in anti-impact property. 展开更多
关键词 Bamboo bundle bamboo sliver laminated composites adhesive loading surface treatment
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Searching for Strange Attractor in Sliver Irregularity Series
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作者 姚杰 钟再敏 +1 位作者 陈人哲 叶国铭 《Journal of Donghua University(English Edition)》 EI CAS 2007年第6期718-722,共5页
The chaotic nonlinear time series method is applied to analyze the sliver irregularity in textile processing.Because it unifies the system's determinacy and randomness,it seems more adaptive to describe the sliver... The chaotic nonlinear time series method is applied to analyze the sliver irregularity in textile processing.Because it unifies the system's determinacy and randomness,it seems more adaptive to describe the sliver irregularity than conventional methods.Firstly,the chaos character,i.e.fractal dimension,positive Lyapunov exponent,and state space parameters,including time delay and reconstruction dimension,are calculated respectively.As a result,a positive Lyapunov exponent and a fractal dimension are obtained,which demonstrates that the system is chaotic in fact.Secondly,both local linear forecast and global forecast models based on the reconstructed state are adopted to predict a segment part of the sliver irregularity series,which proves the validity of this analysis.Therefore,the sliver irregularity series shows the evidence of chaotic phenomena,and thus laying the theoretical foundation for analyzing and modeling the sliver irregularity series by applying the chaos theory,and providing a new way to understand the complexity of the sliver irregularity much better. 展开更多
关键词 sliver irregularity CHAOS state space reconstruction time delay the maximal Lyapunov exponent fractal dimension local linear forecast global forecast neural network
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Impact of the Speed of Flat of a Typical Carding Machine on the Quality of Carded Sliver and 40 Ne Yarn
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作者 Zubair Bin Sayed Naba Afrose Shabrina Kabir 《Journal of Textile Science and Technology》 2021年第1期66-76,共11页
The carding cycle affects the sliver quality and the subsequent yarn attributes since it is the main sliver formation step. Processing parameters assume a significant part in affecting the nature of the eventual outco... The carding cycle affects the sliver quality and the subsequent yarn attributes since it is the main sliver formation step. Processing parameters assume a significant part in affecting the nature of the eventual outcome in any sorts of production. In the case of carding machine, a higher production rate makes the operation more sensitive. And this will cause degradation in product quality. So optimization of speed is the talk of the town in spinning field [1]. Extreme higher speed can prompt fiber harm and unnecessary neps generation will corrupt the end result. Again lower speed will lessen the production rate which isn’t reasonable. So we need to discover the ideal speed which will be advantageous to both product quality and production rate. In carding machine, real operational activity happens between flats and cards [1]. From an ordinary perspective, high produce able cards generates higher level of speed. Speed of the cards impacts the carding cycle and the nature of the yarn and in practical point of view, flat’s level of speed is advanced and optimized. The aim of the project was to find out the optimum flat speed in the context of yarn quality. 40 Ne cotton yarns were produced with the slivers manufactured at different flat speeds such as 240, 260, 280, 300 and 320 mm/min. The quality parameters of slivers and yarns were tested and analyzed. 展开更多
关键词 FLAT Carding Machine Carded sliver English Count (Ne) YARN
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棉条专家系统软件:Sliver Professional——立达自调匀整并条机的技术支持
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《纺织导报》 CAS 2004年第3期60-61,共2页
关键词 棉条专家系统软件 sliver PROFESSIONAL 自调匀整并条机 参数设置 波谱图分析 配置
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TE Connectivity新型Sliver内部电缆互连产品
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《世界电子元器件》 2017年第1期27-27,共1页
TE Connectivity(TE)宣布推出新型Sliver内部电缆互连产品,作为市面上最灵活的解决方案之一,该产品可在电路板上实现内部输入/输出(I/O)连接。这项新技术无需使用复位定时器以及价格高昂的低损耗印刷电路板(PCB)材料,从而可简化设计流程... TE Connectivity(TE)宣布推出新型Sliver内部电缆互连产品,作为市面上最灵活的解决方案之一,该产品可在电路板上实现内部输入/输出(I/O)连接。这项新技术无需使用复位定时器以及价格高昂的低损耗印刷电路板(PCB)材料,从而可简化设计流程,有助于降低整体成本。新款Sliver互连产品采用TE高速电缆,其数据传输速度最高可达每秒25千兆位(Gbps)。TE Connectivity数据与终端设备事业部产品经理Melissa Knox表示:'我们全新推出的Sliver内部电缆互连系统已受到我们首批客户的热烈追捧。 展开更多
关键词 TE Connectivity 电缆互连 数据传输速率 sliver 印刷电路板
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Barco公司的SliverWatch棉条杂质检测器
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作者 相兴利 《国外纺织技术(纺织针织服装化纤染整)》 2002年第1期32-34,共3页
关键词 sliver Watch棉条杂质检测器 棉纺厂 使用
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Generation mechanism and motion behavior of sliver defect in single crystal Ni-based superalloy 被引量:3
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作者 Huxiang Xia Yanhong Yang +3 位作者 Qiushui Feng Qingyan Xu Hongbiao Dong Baicheng Liu 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2023年第6期232-246,共15页
Sliver is a common but easily neglected defect in single crystal Ni-based superalloy castings.To date,there is still no unified viewpoint on its formation mechanism and generation causes.In this work,the orientation d... Sliver is a common but easily neglected defect in single crystal Ni-based superalloy castings.To date,there is still no unified viewpoint on its formation mechanism and generation causes.In this work,the orientation discontinuity and motion behavior of sliver defects were studied through experiments and numerical simulations.The ultrathin wedge-shaped specimen containing the grain boundary of the sliver and the matrix was prepared at the initial position of the sliver defect for the observation of equal thick-ness fringes.The discontinuity of equal thickness fringes on both sides of the grain boundary was ob-served through a transmission electron microscope,which directly confirms the abrupt change in the orientation between the sliver and matrix from the nanoscale.The crystal lattices at the smooth area and the bulging area of the grain boundary were found to have unusually different arrangements.The irregular lattice arrangement at the bulging area shows that the grain boundary has experienced high-stress deformation.Statistical results of sliver orientation deviation with a further composition analysis show the micro protuberance of the mold shell has a noticeable inductive effect on the sliver generation.Furthermore,a self-developed three-dimensional phase-field simulation model coupled with the spatial topology algorithm is established to simulate the orientation deflection behavior and orientation devia-tion threshold of fractured dendrites.The simulation results indicated that there is an upper limit of the cross-section solid fraction at the fracture position for the motion of the fractured dendrites.When the cross-section solid fraction at the fracture position is higher than this upper limit,it will be difficult to produce large deviation slivers due to the structural limitation of surrounding dendrites.This upper limit does not change with the solidification temperature gradient. 展开更多
关键词 Single crystal Ni-based superalloys Directional solidification sliver defect Phase-field simulation
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北极狐、银狐血清生化指标的比较分析
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作者 杨颖 刘学庆 +4 位作者 涂剑锋 曲勃 任二军 李伟 张铁涛 《特产研究》 2024年第3期12-21,29,共11页
为了比较冬毛期北极狐与银狐血清生化指标的差异,随机选择健康成年北极狐、银狐各80只(公、母各半),在打皮期采用腿静脉采血方法,并应用全自动生化分析仪,测定了北极狐和银狐的血清生化指标。结果表明,血清肝功能各指标总蛋白(TP)、白蛋... 为了比较冬毛期北极狐与银狐血清生化指标的差异,随机选择健康成年北极狐、银狐各80只(公、母各半),在打皮期采用腿静脉采血方法,并应用全自动生化分析仪,测定了北极狐和银狐的血清生化指标。结果表明,血清肝功能各指标总蛋白(TP)、白蛋白(Alb)、碱性磷酸酶(ALP)、丙氨酸氨基转移酶(ALT)、天门冬氨酸氨基转移酶(AST)、γ-谷氨酰基转移酶(GGT)、总胆汁酸(TBA)、总胆红素(T.Bili)和直接胆红素(D.Bili)两物种间均差异极显著(P <0.01),除天门冬氨酸氨基转移酶(AST)(P=0.006)、γ-谷氨酰基转移酶(GGT)(P=0.018 3)两指标在性别上有显著差异和ALP在年龄上有显著差异(P=0.014 5)外,其他各指标在年龄和性别上差异均不显著(P> 0.05);血清血脂功能指标中胆固醇(CHO)、甘油三酯(TG)、载脂蛋白A1(ApoA1)、载脂蛋白B(ApoB)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)两物种之间除ApoA1没有显著差异(P=0.892 9),其他各指标均有显著差异(P <0.05),在性别方面,除LDL-C没有显著差异(P=0.180 9)外,其他各指标均有显著差异(P <0.05);血清心肌类乳酸脱氢酶(LDH)在性别方面没有显著差异(P> 0.05),血清心肌类肌酸激酶(CK)和肾功能肌酐(Cre)指标在两物种间及性别方面均有显著差异(P <0.05);血清脂蛋白(a)[Lp(a)]、胆碱酯酶(CHE)在两物种之间均无显著差异(P>0.05)。北极狐与银狐的肝功能各指标均存在极显著的差异,北极狐与银狐的血脂指标除ApoA1外均存在显著或极显著差异。此外,血清肌酐银狐显著高于北极狐;银狐的血清肌酸激酶显著低于北极狐;血清乳酸脱氢酶北极狐显著低于银狐。 展开更多
关键词 北极狐 银狐 血清生化指标 肝功能 血脂 肾功能
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Investigation and improvement of tiny spot defects on hot-dip galvanized automotive steel sheets
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作者 GE Zhiyong YANG Bo YANG Jiwu 《Baosteel Technical Research》 CAS 2024年第2期32-38,共7页
The causes of tiny spot defects on the surface of hot-dip galvanized automotive steel sheets were studied using scanning electron microscopy(SEM)and energy dispersive spectrometer(EDS),and effective control measures w... The causes of tiny spot defects on the surface of hot-dip galvanized automotive steel sheets were studied using scanning electron microscopy(SEM)and energy dispersive spectrometer(EDS),and effective control measures were introduced.The results show that rubbing against the top roller after galvanizing is easy due to the local thickness of tiny spot defect location coating;therefore,the surface morphology is different from the normal part.Three kinds of defects,namely zinc slag,small slivers,and pitting,are likely to cause local thickening of the coating after galvanizing,leading to the formation of tiny spots.Therefore,resolving the three types of defects can effectively control the generation of tiny spot defects.Among them,due to the hereditary nature of the small sliver defect,focusing on its control and supervision is necessary. 展开更多
关键词 hot-dip galvanizing tiny spot zinc slag PITTING small sliver
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基于Lasso回归模型研究抗冻肽性质对冷冻鱼糜肌原纤维蛋白的影响
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作者 袁承志 王发祥 +6 位作者 黄轶群 俞健 刘永乐 施依 吴金鸿 汪少芸 李向红 《食品科学》 EI CAS CSCD 北大核心 2024年第13期8-16,共9页
为探究抗冻肽性质对其保护冷冻鱼糜肌原纤维蛋白效果的影响,本实验对3种抗冻肽(丝胶肽、胶原肽及鲢鱼酶解产物)的性质进行表征,分析不同冻藏条件下鱼糜肌原纤维蛋白指标变化规律,并基于最小绝对缩小和选择算子(least absolute shrinkage... 为探究抗冻肽性质对其保护冷冻鱼糜肌原纤维蛋白效果的影响,本实验对3种抗冻肽(丝胶肽、胶原肽及鲢鱼酶解产物)的性质进行表征,分析不同冻藏条件下鱼糜肌原纤维蛋白指标变化规律,并基于最小绝对缩小和选择算子(least absolute shrinkage and selection operator,Lasso)回归构建了“冻藏工艺-抗冻肽性质-肌原纤维蛋白指标”的关联模型。结果表明,所用的3种抗冻肽均为分子质量低(m<10000 Da)、亲水性强(静态接触角小于30°)的“超活性”抗冻肽(热滞活性大于0.60℃),极性氨基酸占比超过60%;所用抗冻肽能够显著减缓冻藏处理对肌原纤维蛋白的负面影响;冻藏处理后,抗冻肽组鱼糜肌原纤维蛋白含量平均值维持在50.44~54.47 mg/g,Ca^(2+)-ATPase活性平均值为1.61~1.67 U/mg,表面疏水性指数平均值相比新鲜鱼糜仅增长39.91%~42.40%,肌原纤维蛋白变性速率远低于未添加抗冻剂组。Lasso回归模型解释了抗冻肽性质对冷冻鱼糜肌原纤维蛋白变化的影响,证明低分子质量、高热滞活性的抗冻肽有助于减缓肌原纤维蛋白含量、Ca^(2+)-ATPase活性、表面疏水性及特征指数的劣变速率;抗冻肽亲/疏水性的区别导致其与冰晶和蛋白之间的相互作用不同,从而对鱼糜肌原纤维蛋白产生不同影响。本研究可为抗冻肽在冷冻鱼糜中的应用及鱼糜制品的品质调控提供理论基础,同时为研究新型高效的抗冻剂提供方向。 展开更多
关键词 丝胶肽 胶原肽 鲢鱼酶解产物 疏水性 构效关系
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条干均匀度检测方式的研究进展
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作者 师帅星 李新荣 +1 位作者 王建坤 刘荣芳 《棉纺织技术》 CAS 2024年第8期49-54,共6页
为进一步提升条干均匀度检测的效率和自动化水平,降低环境温湿度、条干结构状态、光强等因素对条干均匀度检测方式的影响,分析了条干均匀度电容式检测、光电式检测及其他检测方式的原理和特点,讨论了各种检测方式在不同环境条件、检测... 为进一步提升条干均匀度检测的效率和自动化水平,降低环境温湿度、条干结构状态、光强等因素对条干均匀度检测方式的影响,分析了条干均匀度电容式检测、光电式检测及其他检测方式的原理和特点,讨论了各种检测方式在不同环境条件、检测速度、精度、有效检测区域等方面的优劣,总结了各种条干均匀度检测方式的研究重点与改进措施。认为:检测方式应朝着高精度、高速、在线检测的方向发展,以适应现代纺织对须条条干大定量、快速检测和现场检测的要求。 展开更多
关键词 条干均匀度 检测方式 温湿度 检测速度 精度
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卷烟制造过程梗签分离工艺及装备研究进展
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作者 唐习书 田德兴 +5 位作者 方瑞萍 普云伟 杨露 王仕宏 马加平 资文华 《轻工学报》 CAS 北大核心 2024年第4期109-117,共9页
针对卷烟中过多梗签会损害其物理属性并影响吸食体验的问题,对卷烟制造过程主要梗签分离工艺和装备进行了综述,认为:卷烟制造过程中梗签分离集中在制丝和卷包两个关键工段,分离工艺主要有风选、振筛及复合工艺,其中风选为梗签分离的主... 针对卷烟中过多梗签会损害其物理属性并影响吸食体验的问题,对卷烟制造过程主要梗签分离工艺和装备进行了综述,认为:卷烟制造过程中梗签分离集中在制丝和卷包两个关键工段,分离工艺主要有风选、振筛及复合工艺,其中风选为梗签分离的主流工艺。通过装备改进和参数优化能提高梗签风选分离效率,但烟丝损耗与纯净度间的平衡关系仍面临挑战;振筛易受筛网阻塞和清洁等问题影响,但将其与风选等工艺进行结合的复合工艺逐渐受到重视;光选识别与风选相结合的复合工艺为卷烟工业带来更为精准和智能的梗签分离解决方案,但目前尚未在实际生产线得到广泛应用。未来,可加强风选技术的研发,并将其与振筛、光选识别等技术进行深入、系统的融合,以提高梗签分离效率和烟丝回收利用率,并实现卷烟产品品质与物料消耗的平衡发展。 展开更多
关键词 梗签分离 装备 风选 振筛 光选识别
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基于3D打印的柔性三频微带天线的设计与加工
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作者 钟智东 舒霞云 +2 位作者 常雪峰 唐毅泉 诸世敏 《压电与声光》 CAS 北大核心 2024年第2期241-245,共5页
为解决可穿戴设备在复杂应用场景中无线信号响应范围较窄的问题,该文提出了一种柔性三频微带天线,在2.5 GHz、3.5 GHz、5.4 GHz微波频段采用双“T”型+双“L”型表面结构实现天线的谐振,采用聚酰亚胺为基底材料,纳米银为辐射贴片及接地... 为解决可穿戴设备在复杂应用场景中无线信号响应范围较窄的问题,该文提出了一种柔性三频微带天线,在2.5 GHz、3.5 GHz、5.4 GHz微波频段采用双“T”型+双“L”型表面结构实现天线的谐振,采用聚酰亚胺为基底材料,纳米银为辐射贴片及接地面的导电材料以实现柔性化。使用ANSYS HFSS对天线进行建模并进行仿真分析,使用微滴喷射3D打印工艺对其加工,有效地解决了传统微机电系统(MEMS)加工在柔性电子领域上成本高及步骤复杂等问题。最后使用场发射扫描电镜分析打印面形貌,并使用矢量网络分析仪分别测试天线成品的回波损耗、可弯折性及弯折抗疲劳性,测试结果与仿真结果基本一致,且天线具有较好的弯折性能。 展开更多
关键词 柔性微带天线 聚酰亚胺 微滴喷射 多频段 纳米银
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工艺参数对磁控溅射制备Ag涂层微观性能的影响研究
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作者 黄鑫宇 戎文娟 +1 位作者 黄永玲 王佳琳 《材料保护》 CAS CSCD 2024年第11期147-155,共9页
采用正交试验法,探究磁控溅射工艺下的溅射温度、磁控靶功率、溅射时间对Ag涂层与基体结合性能与疏水性能的影响,研究总结出Ag沉积涂层形貌变化规律与最佳成形参数指标。采用能谱仪对正交试验参数下的涂层进行化学成分分析;采用扫描电镜... 采用正交试验法,探究磁控溅射工艺下的溅射温度、磁控靶功率、溅射时间对Ag涂层与基体结合性能与疏水性能的影响,研究总结出Ag沉积涂层形貌变化规律与最佳成形参数指标。采用能谱仪对正交试验参数下的涂层进行化学成分分析;采用扫描电镜(SEM)分析涂层微观形貌,推断涂层微观组织演变过程;采用划痕仪以及接触角测量仪进行涂层与基体结合强度表征与涂层疏水性能测试。结合以上测试,对正交试验结果进行极差分析,归纳汇总影响涂层性能指标因素的强弱排序与最佳的成形工艺参数。结果表明,各因素影响强弱排序为:Ag靶材溅射功率>溅射时间>溅射温度。标号为S1(Ag靶材溅射功率10 W,溅射时间10 min,溅射温度150℃)对应涂层的性能最优,涂层厚度控制在0.7~1.4μm最佳。研究结果可作为后续大批量工业生产关节假体工艺优选提供一定的参考依据与思路。 展开更多
关键词 正交试验 磁控溅射 Ag涂层 微观性能
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忍冬属6种“银花”类药材在小鼠体内抗炎镇痛作用研究
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作者 罗姣姣 李旭东 +9 位作者 彭芳 徐皖菁 吴宇 毛常清 陶珊 廖海浪 米亚东 苏志强 李羿 张超 《中国医药科学》 2024年第13期8-11,共4页
目的比较6种不同“银花”类药材提取物在小鼠体内抗炎镇痛活性差异,为评价其药理作用提供科学依据。方法采用二甲苯致小鼠耳肿胀的急性炎症模型和冰醋酸致小鼠扭体的致痛模型,比较细毡毛忍冬与《中华人民共和国药典》收载的5种银花类药... 目的比较6种不同“银花”类药材提取物在小鼠体内抗炎镇痛活性差异,为评价其药理作用提供科学依据。方法采用二甲苯致小鼠耳肿胀的急性炎症模型和冰醋酸致小鼠扭体的致痛模型,比较细毡毛忍冬与《中华人民共和国药典》收载的5种银花类药材醇提物抗炎镇痛作用。结果6种药材醇提物均能有效降低小鼠耳肿胀度和抑制小鼠扭体(P<0.05)。在给药组中,细毡毛忍冬、灰毡毛忍冬和红腺忍冬抗炎作用与华南忍冬抗炎作用比较,差异有统计学意义(P<0.05);细毡毛忍冬、忍冬和灰毡毛忍冬能延长扭体潜伏期,忍冬和细毡毛忍冬的扭体次数较其他组显著减少,差异有统计学意义(P<0.05)。结论6种药材具有体内抗炎镇痛效果,细毡毛忍冬、灰毡毛忍冬和红腺忍冬的抗炎效果较好,细毡毛忍冬和忍冬的镇痛效果较好。 展开更多
关键词 抗炎 镇痛 忍冬属 “银花”类药材
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光敏树脂、加强型玻璃离子、银汞合金填充治疗乳牙龋齿病的效果比较
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作者 范佳敏 范宇航 沈婧 《蚌埠医学院学报》 CAS 2024年第1期68-71,共4页
目的:比较光敏树脂、加强型玻璃离子、银汞合金填充治疗乳牙龋齿病的效果。方法:选择乳牙龋齿病病人125例作为研究对象,依据填充治疗方法的不同分成A、B、C 3组。A组43例(106颗龋齿)采用光敏树脂进行填充治疗,B组42例(102颗龋齿)采用加... 目的:比较光敏树脂、加强型玻璃离子、银汞合金填充治疗乳牙龋齿病的效果。方法:选择乳牙龋齿病病人125例作为研究对象,依据填充治疗方法的不同分成A、B、C 3组。A组43例(106颗龋齿)采用光敏树脂进行填充治疗,B组42例(102颗龋齿)采用加强型玻璃离子进行填充治疗,C组40例(98颗龋齿)采用银汞合金进行填充治疗。比较各组每颗患牙填充时间、牙本质过敏反应发生率、填充材料存留情况及龋齿复发情况。结果:A组每颗患牙填充时间短于B组和C组(P<0.05),B组每颗患牙填充时间短于C组(P<0.05)。A组填充治疗后1周牙本质过敏反应发生率低于B组和C组(P<0.05),C组填充治疗后1周牙本质过敏反应发生率低于B组(P<0.05)。A组随访1年填充材料完整存留率高于B组和C组(P<0.05),B组与C组随访1年填充材料完整存留率差异无统计学意义(P>0.05)。A组与C组随访6个月、随访1年龋齿复发率均低于B组(P<0.05),A组与C组随访6个月、随访1年龋齿复发率差异无统计学意义(P>0.05)。结论:与加强型玻璃离子、银汞合金填充治疗相较,光敏树脂填充治疗乳牙龋齿病,具有较短的填充用时、更低的牙本质过敏反应发生率、更高的充填材料存留率、较低的龋齿复发率。 展开更多
关键词 乳牙龋齿病 光敏树脂 加强型玻璃离子 银汞合金
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《SLIVER》
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作者 单伟东 杜海滨 丁剑 《美苑》 CSSCI 北大核心 2015年第S1期181-,共1页
关键词 鲁迅美术学院 sliver
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