可测性
- 与 可测性 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The Diels-Alder cycloadditions of [60] fullerene for preparation of optical limitingmaterials are discussed in chapter 3 and 6. Soluble cycloaddition derivatives of 〓aresynthesized by the reaction of 〓 with indene,1,1'-biindene andcyclopentadiene derivatives.〓Particular, the Diels-Alder cycloaddition of 〓 with1,1'-biindene under controlled conditions affords the stable monoadduct 〓〓of novel structure, which was confirmed by HPLC, FTIR, FD-MS,〓NMR,〓 NMR, HMQC and HMBC spectra, Its two bridgehead cage carbons resonate at70.91ppm, The 〓 NMR spectra showed 38 lines consistent with the 〓 symmetryassociated with [6,6] addition. The 〓 shows similar optical limitingproperties to that of 〓 in toluene for 8ns laser at wave length 532nm. Moreover, thehigh solubility of this adduct in polar solvents such as THF, acetone enables itsincorporation into sol-gel glass matrix. The thin films prepared via the sol-gel methodshow improved OL behaviour compared to those of 〓. The langmuir-Blodgett filmformation and uv-visible absorption of 〓 are also investigated. LBmonolayer of this compound is prepared on the air-water interface at 〓 mol/l. In chapter 4, three water-soluble derivatives of [60] fullerene: fullerol(1), theaddition product (2)of fullerol (1)with polyvinylpyrrolidone and fumaric acidderivative of 〓(3) are synthesized and characterized.
通过Diels-Alder环加成反应,用茚〓和1,1'-联茚〓及取代茂合成了一系列可溶性的〓环加成衍生物,发现可控制反应条件,使1,1'-联茚与〓反应,并高产率地得到具有新颖结构的单加成物,用HPLC、FTIR、FD-MS 及〓、HMQC、HMBC等多种波谱技术对其结构进行表征,测得它的两个〓杂化的桥头碳的化学位移为〓ppm,证明生成的衍生物为6∶6闭式环加成,〓NMR谱中共给出38个信号,表明〓联茚衍生物分子具有〓对称性;在波长532nm,脉冲宽度8ns的激光下,〓联茚衍生物的甲苯溶液的光限幅性能与〓的甲苯溶液相近,由于〓联茚单加成衍生物熱稳定性好,在四氢呋喃,丙酮等极性溶剂中溶解性好,能分别均匀地掺入溶胶-凝胶中,已发现它的溶胶(so1)光限幅性能优于纯〓的光限幅性能;使用Langmuir-Blodgett技术将〓联茚衍生物在空气和水的界面进行了LB单层膜和多层膜实验以及UV-Vis吸收谱研究,通过等温压缩曲线测试,证明浓度为〓〓时,〓联茚衍生物能够形成单层膜。
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The four different ERH/EMC models including the Henderson, Chung-Pfost, modified Halsey and Oswin equations were respectively used to investigate the fitting agreement of the measured data. Based on the comparison of the residual distributions, the coefficient of determination R2 values, the residual sum of squares SSE values, and the mean relative percentage deviation P values obtained from the regression analysis of six temperatures 20、30、35、40、50 and 60 ℃ tests, the Oswin model with two parameters and the modified Oswin model with three parameters all had the equivalent representative to the prediction of ERH/EMC values for the samples of lemon balm, and was also the best predicting models for the desorption isotherms of lemon balm.
试验时分别以四种平衡含水率模式,即Henderson、Chung-Pfost、修正Halsey与Oswin方程式,经由量测数据适称性之探讨,综合回归分析之残差图及决定系数R2值、残差平方和SSE值与平均相对偏差百分比P值比较后,获致在六个温阶20、30、35、40、50与60 ℃下,Oswin二参数模式与修正Oswin三参数模式皆具有相等的之平衡含水率与平衡相对湿度之适用代表性,可作为香蜂草去湿平衡含水率之最佳预测模式。
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A compact-size coplanar waveguide lowpass filter is designed, simulated, fabricated and measured. The purpose of this thesis is to investigate the performance of miniaturized CPW lowpass filter which is a fifth-order semi-lumped uniplanar Butterworth filter. Our design utilizes transmission line lumped elements consisting of interdigital capacitors and meander line inductors.
本文研究目的是探讨微小化共面波导滤波器设计、模拟、制作与其量测特性,滤波器设计是使用Meander和Interdigital线路结构,其电路特性可等效为电感性与电容性元件,藉由串联Meander和Interdigital线路实现慢波周期结构,Interdigital结构设计的线宽为5μm。
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Based on the absorbance change of indicators with the concentration of hydrogen ion released from the enzyme-catalyzed reaction, a convenient colorimetry method is established for the assay of acidic phospholipase 〓 and glycogen phosphorylase b Brilliant yellow and bromothymol blue are chosen as indicators for assays of acidic phospholipase 〓 and glycogen phosphorylase b by following the absorbance changes at 495 nm and 615nm respectively The method is simple, sample-saving, sensitive and valid for a wide range of enzyme concentrations.
为了研究糖原磷酸化酶的激活动力学和酸性磷脂酶〓的复性过程,我们根据酶催化反应中释放氢离子浓度的变化引起相应的指示剂的光吸收发生变化的原理,建立了一种简捷的比色法,用于测定酸性磷脂酶〓和糖原磷酸化酶b的活性。选用亮黄和溴麝香草酚兰分别作为酸性磷脂酶〓和糖原磷酸化酶b测活的指示剂,在495 nm和615 nm处检测二者的光吸收值的变化,可以测定酶活。本方法的优点是,可在比较宽的酶浓度范围内进行活力测定,而且操作简单、节省样品、灵敏度高。
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Regardless to the research development or industrial application, nano metal powders are extensively discussed. Within these powders, the flammable and explosible nano aluminum, titanium and iron powders produce a great amount production and apply widely. Meanwhile, the surface/volume ratio of powders is increased significantly under nano scale, in which to enhance the ignition opportunity. Thus, the dust explosion hazard risk of nano powders could remarkable rise. In addition, the comparison of explosion phenomenon, test methods and quantification parameters between nano and micro scale is necessary to deeply investigate further. So that this project operates the explosion characteristic experiments to measure and determine such the maximum explosion pressure, minimum explosion concentration and explosion characteristic Kst value on above mentioned three nano metal powders. Expectantly, to provide the appropriate recommendations of safety prevention for nano dust explosion based on the experimental results.
奈米金属粉末无论是研究发展或是工业界应用,目前皆是广泛讨论研究之材料,其中,奈米铝粉、奈米钛粉以及奈米铁粉等可燃、爆性粉末,均有高额产量及大量应用领域,与此同时,在粉末粒径进入奈米尺度的情况下,粉尘比表面积大幅提升,增加此三种粉尘可被点燃的机会,因此,潜在的粉尘爆炸危害风险将广幅增加,另外,微米尺度粉尘爆炸的现象、测试方法以及量化参数是否具有相同的实验尺度基点,也需要深入探讨,故本次计画针对上述三种奈米金属粉末,进行三种不同粒径的爆炸特性参数实验,如最大爆炸压力、最低爆炸浓度以及爆炸特性参数Kst值之量测与计算,期能量化其粉尘爆炸特性,并据此提出适当的安全防护建议。
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Large, powerful, very substantial head, exceptionally masculine, very beautiful expression, excellent body structure, very nice lines, dry and firm, correct in the front, distinct withers, correct lay of the croup with an adequate length, very good angulations in the front and the rear, shows gaiting with a very extensive front reach and a powerful rear drive.
大,强有力,非常坚固头,格外男性,非常美好的表示,优秀身体结构,非常好线,干燥和牢固,正确在前面,分明凋枯,改正义膜性喉炎的位置与一个充分长度、非常好测角在前面和后方,展示gaiting与非常广泛的前面伸手可及的距离的和强有力的后方驱动的。
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Read and write of flash disk as USB host.According to the request of this subject, the system hardware and software for the slave device, and the communication interface to the master PC are developed. Detailed works are as follows: in order to implement the measurement principle in the system, flow-liquid levelmethod is used;velocity of flow is measured through rotor Kinemometer;water level is surveyedvia RS485 interface and pressure sensor;the C8051F060 chip which is in high performance andintegration, produced by Silicon Laboratories Company as master chip is used to capture and measure the width of impulses, so singals of flow velocity are collected and disposed;the 4×4 matrix keyboard and LCD are used in the part of man-machine interface which are easy to input, legible to read, various to display, comfy to be accepted and plain to show measure and inquiry results;FRAM memory FM3164 is used to carry out the non-volatile memory of data and accurate real-time clock.;SL811HST chip is used as USB host which can read and write flash disk,thereby a kind of adscititious mass storage is accomplished .
根据研制任务的要求,课题期间主要完成了下位机系统硬件和软件,设计了与上位机的通讯界面,所做的具体工作包括:测量原理在系统中的实现,采用了流速—水位计算法,通过旋桨式流速仪来测量流速,通过RS485接口与压力变送器通讯测量水位;主控制芯片采用了Silicon Laboratories公司的高性能、高集成度C8051F060芯片,利用其捕捉测脉宽的特性,实现了流速信号的采集和处理;人机接口部分采用了4×4矩阵键盘和LCD显示,输入方便,读数清晰,显示多样化,信息量大,易于被用户接受,更直观地显示测量及查询结果;通过采用铁电存储器FM3164实现了数据的非易失性存储和精确的实时时钟;通过采用SL811HST芯片,实现了USB主机的功能,可读写U盘,从而实现了单片机的外挂式海量存储。
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Compared with other anterior segment tomographic devices like UBM, corneal pachymeter, OrbscanⅡ, IOL master, gonioscopy, etc., the Visante OCT has advantages of noncontacting, high resolution and reproducibility, obtaining image quickly, etc. At present, it can be used in the biological measurement of cornea, anterior chamber, iris and the central portion of the lens and ophthalmopathy research.
与目前临床应用的其他眼前节检测手段如超声生物纤维镜、超声角膜测厚仪、多功能眼前节分析诊断系统,光学生物测量仪、房角镜等相比,OCT具有非接触性、高分辨率、可重复性高、获取图像快等特点。
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The algorithms have stronger robustness, if there exist unmodelled dynamics, it can still obtaine satisfactory control results under action of stronger bounded unmeasurable disturbances.
具有非常强的鲁棒性和抗干扰能力,当系统具有未建模动态和较强的有界不可测干扰时仍可得到令人满意的控制结果,这一点通过仿真得到了验证。
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Owing to the variability of HVR1, the method to check anti-HVR1 antibodies need to cloning and expressing the gene of HVR1 of every sera and that poses some problem. For example, it needs lots of time and money, and the sample must come from viremic patients. It is urgent to acquire a broadly cross-reactivity HVR1 antigen to check the antiHVR1 Ab in the sera of HCV infected patients by ELISA.
由于HVR1的高变性,因此要想测定血清中抗HVR1水平,通常要克隆表达待测血清中的HVR1基因,但该方法时间长、费用高,并仅对HCV、RNA阳性血清适用,所以急需一种具有极高交叉反应性的HVR1抗原,才可通过ELISA对病人的HVR1抗体进行检测。
- 推荐网络例句
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In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.
。但是,在否定句或疑问句里,这种带有"do"的方法表达的效果却没有什么强调的意思。
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Go down on one's knees;kneel down
屈膝跪下。。。下跪祈祷
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Nusa lembongan : Bali's sister island, coral and sand beaches, crystal clear water, surfing.
Nusa Dua :豪华度假村,冲浪和潜水,沙滩,水晶般晶莹剔透的水,网络冲浪。