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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。

Methods:The most appropriate technology was screened based on the comparative study among the technology of ethanol circumfluence,ultrasonic extraction,water warm immersion and water decoction,with the concentration of menstruum, volume and extracting time as the evaluating factors,on the basis of orthogonal design.

对比乙醇回流、温浸、超声及水煎等提取工艺,以溶媒浓度、用量、提取时间为研究因素,经正交设计进行提取工艺条件的优选。结果:最佳提取工艺路线为10倍量75%乙醇回流提取1次,提取时间为1.5 h。

To form a kind of serosity after special technology by using of the developed non-toxic plant-reconstructive starch which with good biological degradation performance, and optimized additive, accelerant, age resistor, to replace PVC material; To press the serosity on the face of cotton or fibre wovens via the relative equipment so form the guttate starch material to manufacture the labor insurance products which can meet the quality and environmental protection standard of US and EURO countries.

项目简介:开发具有良好生物降解性能,无毒的植物改性淀粉,选择优化的添加剂,促进剂,防老剂,经特殊工艺后形成一种液体浆料,替代PVC原料,在滴珠设备上压制于棉布,化纤等织物表面形成淀粉滴珠材料,生产符合欧美发达国家质量和环保标准的防护系列产品,用纱量是纱手套的1/3,耐用程度是一般手套的4倍,摩擦系数增加1.5-2.5倍。

Minimum erythema dose was measured at each testee's upper arms.

根据受试者的最小红斑量,在三组人群的另一侧上臂内侧分别给予1.5倍MED、2倍MED、2.5倍MED剂量的紫外线照射,一周后肉眼观察判断红斑消退情况、黑素强度、黑素均匀度及表面光滑程度等情况,在照射前及照射后的第1、2、3、4、5周分别用CM2500分光测色仪及Mexameter18红斑黑素测量仪采集数据L、a、b、M、E值。

The paper focuses on the tetraploidy black locust on Loess plaeatu of West Shanxi province, applys steady state promoter method and image processing technology to study the days transpiration water consumption in different weather ,different seasons and different site conditions,has primary analysis on the impact of environment on the transpiration and carries on the calculation to the tetraploidy locust tree by the single leaf water consumption to the single tree water consumption in CaiJiachuan watershed; Uses fast weighing method to measure and analyze the transpiration water consumption of five different herbs under the tetraploidy black locust forest (Capillary Wormwood,Vanilla,Agropyron Sristatum , Common Sowthistle and Medicago Sativa) in short time, in the same and different growcrop,and calculates the average transpiration water consumption per square metres ;the soil colome weighing method was used for determining diumal variation quantity of soil moisture evaporation, analyzing the dynamic variation and caculating the total quantity of soil evaporation water consumption from May to August ; then 5 kind of suppositions about the types of surface vegetation coverage are proposed in experimented site and the total evapotranspiration water consumption are calculated under 5 suppoitions ,aim at providing preliminary theoretic basis for ascertaining the transpiration water consumption of tetraploidy black locust forest,controling standing forest density and optimizing the forest grass deploy on loess plaeatu of west Shanxi province .

本文以两种不同立地条件下的四倍体刺槐林为研究对象,采用了气孔计法对蔡家川流域生长季内不同天气状况下(典型晴天、阴天和半阴天)四倍体刺槐日蒸腾耗水规律、不同季节(生长季初期、中期和末期)的蒸腾耗水规律、两种不同立地条件下四倍体刺槐蒸腾耗水比较以及影响四倍体刺槐蒸腾耗水的环境因子进行初步研究分析,并对四倍体刺槐由单叶耗水量向单株耗水量进行推算;采用经典快速连续称重法对四倍体刺槐林地生长的主要5种草本植物(白蒿、香青兰、冰草、苦苣和苜蓿)短时段内蒸腾耗水规律、不同生长季内蒸腾耗水规律、同一生长季不同种类草本植物蒸腾耗水量进行了比较分析,并且采用面积与重量比的方法推算出了单位面积四倍体刺槐林地几种主要草本植物平均蒸腾耗水量:采用土柱称重法测定了5月份~8月份土壤水分蒸发昼夜变化量、对试验期内土壤蒸发量动态变化作了分析、推算出了试验地5月份~8月份土壤蒸发耗水总量;对试验地地表植被覆盖类型提出了5种假设,推算出5种假设的情景下蒸散耗水总量,旨在为晋西黄土区四倍体刺槐林蒸腾耗水量的确定、林分密度调控以及林草优化配置等提供初步的理论依据。

Aramid fiber-wide known as "poly p-phenylene terephthalamide of p-phenylenediamine", the English called Aramid fiber is a new type of high-tech synthetic fiber, with ultra-high strength, high modulus and high temperature, acid-alkali resistance, light weight excellent performance, the strength of steel wire 5-6 times the modulus for the steel wire or glass fiber 2-3 times, toughness is the wire 2 times the weight of the public for the steel wire 1 / 5 of about 560 degrees in the high temperature does not decompose, does not melt.

芳纶纤维全称为"聚对苯二甲酰对苯二胺",英文名为Aramid fiber 是一种新型高科技合成纤维,具有超高强度、高模量和耐高温、耐酸耐碱、重量轻等优良性能,其强度钢丝的5-6倍,模量为钢丝或玻璃纤维的2-3倍,韧性是钢丝的2倍,而重量公为钢丝的1/5左右,在560度的高温下,不分解,不融化。

Vitrification, chlorosis, scale-shaped differentiation and failure to root of regenerated shoots frequently occur in industrialized production of tetraploid watermelon Citrullus vulgaris L.

西瓜四倍体工厂化生产中存在试管苗玻璃化、黄化死亡、鳞片状分化、不生根等不利问题,在MS中NH4NO3 含量减半的情况下,前两者可得到有效的控制;用连续增殖、连续壮苗的方法,解决了西瓜四倍体鳞片状分化的难题;用茎尖扩繁的最佳培养基为MS(含半量NH4NO3 )+2 。

Results: The optimized extract's technological parameters were: refluxed three times by 75% ethanol, five times ethanol at first, then four times and four times separately as solvent added, for one hour at each reflux.

结果:优化的最佳提取工艺为取牡丹皮等药味,用75%乙醇加热回流三次,第一次加75%乙醇5倍量、第二次加4倍量、第三次加4倍量,每次回流1小时。

The result pointed out that the vertical distribution of foliage for each species was different,however,generally speaking,the foliage in upper crown (0.3CL) for broad-leaved species in natural secondary forest took a small percentage,about 10%;in middle or middle lower of the crown(0.4CL to 0.8CL) the branches here took the majority percentage of whole foliage,almost 60%to 75%;but in lower crown(0.8CL),there was about 10%of whole foliage.(5)The interspecies competition of trees in secondary forest was expressed by Hegyi competitioin index,and the active competitor was calculated by the competition zone radius and the tree position,DBH,and distance in the zone,it was not all competitors in tranditional calculation.The study introduced crown area overlap index to describe the crown competition between subject tree and its competitors,furthermore,the crown area was classified into 5 levels with a method of equal crown projection area,therefor,the resulting crown area overlap index showed more realities of existing stand conditons.(6)Based on the theoretics of multiply divide,the spatial strcture optimizing model of secondary forest stand selective thinning was developed by diversity mingling,aggregation index,competition index and crown area overlap index,also designed 10 constraint conditions which were related to forestry meanings,the objective function was solved by the implicit enumeration method with LINGO 9.0,using 0-1 integer programming.

并且得出,每个树种在树冠内相对高度上的叶量的垂直分布是不同的,天然次生林阔叶树种的叶量在树冠的上部(0.3CL以下)所占比例很小,约占10%左右;在树冠的中部以及中下部(0.4CL~0.8CL),叶量所占比例最大,几乎集中了整个树冠60%~75%的叶量;而在树冠的下部(0.8CL以下),几乎占很少的叶量,大约10%左右。5、采用Hegyi竞争指数来表现次生林内林木的竞争关系,并且根据竞争圈的大小和林木在竞争圈内的分布位置、大小与距离来计算有效的竞争木,并不是传统意义上的全部竞争木;本研究提出用树冠叠加指数来表示林木与周围树木的树冠竞争情况,并采用等树冠投影面积法把树冠分为5级,这样计算的树冠叠加指数更加与现实林分相符。6、本研究基于乘除法的思想,用多样性混交度、聚集指数、竞争指数和树冠叠加指数构建了天然次生林择伐空间优化模型,设计了10个与林学意义相一致的约束条件,并采用0-1整数规划的思路,在LINGO9.0软件中使用了隐枚举法对目标函数求得最优解。7、以M702标准地为应用实例,具体计算出了每株采伐木,经过择伐后,目标函数值按模型设计的要求发生了极大的改变,增加了5倍多,说明了最后这个解的优良性,满足了设计的要求。

The purpose of this study was to examine the difference between using bladder scan and catheterization on 87 rehabilitation patients to evaluation the amount of residual urine. After voiding, each subject was scanned with a BladderScan BVI 3000, then catheterized for postvoid residual urine volume. Repeat measure ANOVA analysis showed that the factors of gender, diagnosis, posture, the thickness of abdominal fat, bladder shape, the amount of urine, and the interval of operation time have no difference in this study. It takes 45 ± 18 seconds (range: 17-119) to accomplish a bladder scan, and it takes 280 ±106 seconds (range: 136-664) for nursing staff to complete a catheterization for patient. However, the catheterization process takes nursing staff 3-8 times longer then operating a bladder scan. This would diminish unnecessary catheterization and save on medical staff resources.

本研究对87位需做余尿量评估的复健病人,在排尿后以膀胱超音波BVI 3000机型测量扫描余尿量,然后接著给予间歇导尿,以repeat measures ANOVA分析,结果发现膀胱超音波及导尿测量所得尿量是无差异(F=0.38 p=。68),再以性别、诊断、姿势、腹部脂肪厚度、膀胱形状、尿量、操作间隔时间等因素做分析,以repeat measures ANOVA检定亦无差异,同时测量两种测量方法所花费护理时数:膀胱超音波平均为45±18秒(range: 17-119秒),导尿为平均280±106秒(range: 136-664秒),结论是膀胱超音波与导尿方式对余尿量的测量一样好,膀胱超音波与导尿时间相差约3-8倍的护理时数,先以超音波来测量余尿量可以减少不必要的导尿次数及节省医疗人力成本。

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推荐网络例句

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

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