查询词典 time value
- 与 time value 相关的网络例句 [注:此内容来源于网络,仅供参考]
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First of all, this study will be multi-walled carbon nanotubes by chemical oxidation process purified so it can be modified to deal with than the purification of purity before the modified 5 wt%, more than 1.89 times the surface area to increase the surface potential decrease of about 10 ~ 20 mV and the surface functional base (-COOH and-OH) to increase 1.45 times, and then the control technology of electroless preparation parameters include: analysis of plating time, plating analysis of temperature, metal ions in solution than the (Fe2+/ Ni2+), bath pH and the added value of dispersion Agent and other research towards Fe-Ni particles to increase the iron content and Fe-Ni particles spread in the MWCNT upper fixed targets,the results found that when the parameters for the preparation of 50 ℃, pH10, do not add dispersant, metal ions than the solution (Fe2 +/ Ni2 +) 7, the highest iron content can be Fe = 40.55 at%(flat iron content 111.17 mg / g) of nanocomposites Fe-Ni/CNT, then for a series of the nature of its analysis, the final evaluation Fe-Ni/CNT nanocomposites were processed on the effectiveness of the application of mixed pollutants, the results showed that in 120 minutes at the same time when Adsorption of heavy metal ions lead nitrate 10 ppm, selenium heavy metal ion degradation of 1 ppm and orange azo dye AO7 50 ppm standard of effluents, and after a total Fe-Ni nano-particles to SEM / EDS analysis of more than 50% still remaining.
本研究首先将多壁奈米碳管以化学氧化法做纯化改质处理能使其纯度较纯化改质前提高5 wt%、比表面积提高1.89倍、表面电位下降约10~20 mV以及表面官能基提高1.45倍,再控制无电镀技术之制备参数包括:析镀时间、析镀温度,镀液中金属离子比(Fe2+/Ni2+)、镀液pH值及是否添加分散剂等,研究朝提高Fe-Ni粒子的含铁量与Fe-Ni粒子散布固定在MWCNT上等目标进行,研究结果发现当制备参数为50 ℃、pH10、不添加分散剂、镀液金属离子比(Fe2+/Ni2+)7时,可得到最高铁含量Fe = 40.55 at%(单位铁含量111.17 mg/g)之奈米复合材料Fe-Ni/CNT,接著对其作一系列性质分析,最后评估奈米复合材料Fe-Ni/CNT对共处理混合污染物之应用效益,结果显示其在120分钟时能够同时吸附重金属硝酸铅离子10 ppm、重金属硒酸根离子1 ppm及降解偶氮橘色染料AO7 50 ppm达放流水标准,且共处理后奈米Fe-Ni粒子以SEM/EDS分析仍剩余50 %以上。
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Interval from beginning of geomagnetic low-value displacement anomalies to origin time is 10-40 days.Interval from magnetic storm to origin time is three days before and after the dates which are multiple of nine.
发震时间距低点位移异常开始的时间在1个月内,距磁暴出现的时间为倍九日期的±3天内。
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The main results can beexpressed as follows:(1)Based on πtheory, some affected factors about wave forces are given, and therelation between affected factors and wave forces is analysised by experimentalresults.(2) The distribution of wave press at representative time and reflection nature aregiven and their variety charactes are discussed by experimental results.(3)By comparing the wave forces of quarter-circular breakwater and semi-circularbreakwater under the same wave conditions,some approximately wave forcesexpressions of quarter-circular breakwater are given.(4)Based on VOF method to trace water free surface,solve numerical value ofRANS equation,and get the distributions of flow field and wave press ofquarter-circular breakwater at the same time during one period,the mechanism ofwave force is also discussed elementarily.(5) Based on the result that RANS equation of numerical simulation agree wellwith experimental results,a new approach to study hydraulic natures of quarter-circular breakwater is provided.
其主要结论如下:一、通过π定理,确定影响波浪力的无因次参变量,根据试验结果对其影响因素进行分析;二、基于模型试验,给出典型时刻圆弧面防波堤的同步波压分布和反射特性,讨论它们的变化特点;三、通过相同条件下圆弧面防波堤与半圆型防波堤两种堤型试验波浪力的比较,给出了圆弧面防波堤波浪力的近似方法;四、利用VOF法追踪自由水面,数值求解RANS方程,得到圆弧堤堤体周围的流场和压力场,初步分析了速度涡流与压力场的相互影响;五、对比数值分析与试验结果,探讨数值方法研究圆弧面防波堤水力特性的可行性,提供新的研究途径
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Methods The left ventricular diastolic function,the blood speed during quick filling phaseof left ventricular of the mitral valve orifice,the peak value of the late phase of left ventricular diastolic pariod;E/A ratio,the time for isovolumetric relaxation phase of left ventricular,the reducel time of peak E,and the distance between peak E of mitral valve and intervertricular septum of left ventricular were measured respectively.
摘要] 目的应用彩色多普勒超声心动图测定冠心病左室舒张功能,临床提供可靠的诊断及治疗依据方法分别测定冠心病组及对照组的左室舒张功能:二尖瓣口左室快速充盈峰值血流速度即E峰;左室舒张晚期峰值速度即A峰;E/A值,左室等容舒张时间,E峰减速时间,二尖瓣叶E峰与室间隔左室面的距离。
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Both of them are based upon data to figure out maturity project margin, regarding profit margin of each project as a time series and dealing with the data of it to get a new time series which has the characters of placidity, normality and zero equal value.
都是基于数据计算出到期利润率,将每一个项目的利润率看成一个时间序列,对该序列的数据进行处理,得到一个具有平稳性、正态性和零均值的新时间序列。
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Then the optimal conditions were decided as follows: the ratio of wall-material to core-material should be 8.0 to 2.0, with ployacrylic sodium as dispersing emulsifier, NH4Cl as acid catalyst, and with the time of pouring catalyst being 2 h, the pH value at end point 2.0, the temperature of condensation reaction under control about 70℃, the reaction time 3 h, the stirring speed 1000 r/min.
研究了壁材与芯材的比例、分散乳化剂、催化剂、反应温度和搅拌速度5因素对微胶囊产品的影响,得出最优化的工艺为:壁材与芯材的比例为m:m=8.0:2.0,以聚丙烯酸钠为分散乳化剂,氯化铵为酸性催化剂,加入速度以2 h加完,终点pH值为2.0,缩聚反应温度控制在70℃左右,反应时间为3 h,搅拌速度为1000 r/min。
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However, the time of the polecat used to kill prey was reversed for the three prey species. So the polecat depended on its prey handling time and behaviours of prey to select the prey and get the largest net food value.
因此,在室内条件下艾虎对猎物的选择性主要依赖于其本身处理猎物的行为时间分配和猎物的反捕食行为,使单位时间内获得的能量值最大[动物学报 52(3):437-443,2006]。
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It varies with time, rareness and social attribute of the resources. So, the value of coefficient K shall be adjusted according to the change of environmental resources with time, location and changing of social environment.
生态环境资源具有时间性、稀缺性和社会属性等特点,因此,K值反映生态环境资源随时间、地点和社会环境的变化。
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Therefore, based on the premise that animation effect and real-time character are not reduced, how to reduce the coupling degree between each model of animation system, decrease the calculation amount of the computer and satisfy the animation creation requirement of real-time has important meaning and value for large-scale group animation creation.
因此,在动画效果和实时性不降低的前提下,如何降低动画系统各模型之间的耦合度,减少计算机运算量,满足动画生成的实时性要求,对于大规模群体动画创作与应用具有重要的意义与价值。
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It has been shown that the red shift due to delayed nonlinear response time in frequency domain increases with the increasing of delayed nonlinear response time exceeds a certain value.
结果表明,脉冲在长波方向的自频移随非线性响应时间的增大先增大后减小,利用这种关系有可能获得非线性响应时间的信息。
- 推荐网络例句
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Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".
歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车,和一双合并为一移交&整个lotta爱&。
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This is Kate, and that's Erin.
这是凯特,那个是爱朗。
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Articulate the aims, objectives and key aspects of a strategic business plan.
明确的宗旨,目标和重点战略业务计划。