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first, and then triangular mesh was generated from outside to inside by using the boundary as the basis. This algorithm was used to triangulation and visualization analysis of an EH4 sounding profile... visualization and data processing. Key words: geophysical data; gridding; triangular mesh; growth algorithm 目前,常用于物探数据成图的软件有Surfer,Grapher,AutoCAD和MapGIS等,其中Surfer和Grapher属于科学绘图软件,有良好的成图功能但图件的编辑能力相对较弱......
磷酸酯酰氯表面接枝聚乙烯醇的阻燃改性研究 赵文革1,马志领1 (1.河北大学化学系,河北,保定,071002) 摘要:研究(β-氯乙基)磷酸酯酰氯[A](ClC H2CH2OPOCl2)以三氯甲烷溶液为介质,通过脱HCl发生酯化反应对PVA进行接枝.讨论了阻燃剂浓度,温度,时间,介质等条件对接枝效率的影响,温度降低,接枝率减小,低于 50 ℃时接枝不明显;阻燃剂浓度增大,反应时间延长或引入助溶剂,接枝率提高.热分析研究和剩炭的扫描电镜图分析说明阻燃剂促进PVA的热降解及交联,形成致密的剩炭,起到阻燃作用. 关键词:阻燃; 表面接枝PVA; 氯乙基磷酸酯; 水溶 性; [全文内容正在添加中] ......
对氯苯肼盐酸盐的反相HPLC测定 潘富友1 (1.浙江省台州学院化学系,浙江台州,317000) 摘要:采用shim－pack CLC－ODS柱(5μm,250 mm×4.6mm I.D.),乙腈:缓冲溶液(每升含0.7g 1-庚磺酸钠,2.0mL冰乙酸)=3.5:6.5(v／v)为流动相,检测波长为 233nm,流速为1mL／min,在5~100mg／L浓度范围内,在反相HPLC中,对氯苯肼盐酸盐的峰面积与浓度之间线性关系良好(r＝0.9 999),RSD为0.52％,方法简便,准确,结果满意.这为工业化生产中动态跟踪产品质量提供了一个快速有效的检测方法. 关键词:对氯苯肼盐酸盐; 反相HPLC; 测定; [全文内容正在添加中] ......
杂多酸盐催化苯酚羟基化制备苯二酚反应产物的反相高效液相色谱分析胡玉才烟台师范学院化学与材料科学学院 烟台264025摘 要:建立了反相高效液相色谱法测定杂多酸盐催化苯酚羟基化制备苯二酚反应产物的分析方法.样品经稀释和经滤膜过滤处理后,在Shim-pack CLC ODS色谱柱(4.6 mm i.d.×150 mm,5μm)上,以甲醇-水(V(甲醇)∶V(水)=35∶65)+体积分数1%乙酸为流动相,流速为1.0 mL/min,柱温为40℃,紫外检测波长280nm,8 min内可以将对苯二酚,邻苯二酚和苯酚完全分离并定量,三者的线性范围分别为0.010.60,0.010.50,0.051.00 mg/mL.反应后在及时分析样品的前提下,该法适合进行苯酚羟基化的产物分析.关键词:反相高效液相......
毛细管液相色谱法分离植物内源激素徐卉1,2,贾丽1,柳亚玲11. 华南师范大学激光生命科学教育部重点实验室,激光生命科学研究所2. 汕头大学理学院摘 要:建立了毛细管液相色谱法(CLC)同时分离测定4种植物内源激素的方法.采用硅胶基质ODS整体柱(27cm×100μmi.d.)作为分离柱,以带有光程为3mm的光纤检测池的紫外检测器作为检测手段,在室温下以含10mmol/L乙酸(pH3.0)的V(甲醇)∶V(水)=35∶65为流动相,以0.6μL/min的流速进行等度洗脱.采用溶剂梯度效应和扩展光程的检测池来提高检测灵敏度,该方法测定4种植物内源激素的检出限(S/N=3)在27.7~196.1ng/mL之间,峰面积和保留时间的相对标准偏差(RSD)小于2.8%.方法已用于不同种类玉米样品的测定......
emissions was extensively studied.Photometric studies of the prepared samples are located in pure red region.Optimized NPs were explored as a novel sensing agent for visualization of latent... novel sensing platform for LFPs visualization in prospective forensic applications.关键词:......
emissions was extensively studied.Photometric studies of the prepared samples are located in pure red region.Optimized NPs were explored as a novel sensing agent for visualization of latent... novel sensing platform for LFPs visualization in prospective forensic applications.关键词:......
twins on phase transformation products based on electron back-scatter diffraction analysis and corresponding microstructure visualization and quantification methods.Martensite and bainite were......
THREE-DIMENSIONAL VISU ALIZATION OF DEGENERATE FERRITE FORMED BELOW TTT-DIAGRAM BAY IN AN Fe-C-Mo ALLOY K.M.Wu1,M.Enomoto2 (1.Department of Materials Physics, University of Science and Technology Beijing, Beijing,100083, China;2.Department of Materials Science, Ibaraki University, Nakanarusawa, Hi......
prevention system (IPS) log analysis, a visualization analysis method was proposed based on node-link diagram. Aiming at solving the problems of node congestion, hierarchy confusion and wasted space in conventional node-link diagrams caused by the growth of data volume, a new visualization technique, i.e. radial node-link diagram was designed. The advantages of node-link diagram and radial diagram......
