在实验上
- 与 在实验上 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Experimental accuracy and repetition of FBG temperature sensitivity and compensation were discussed.have selected several materials which has bigger coefficient of expansion to do packaging components, have made many temperature experiments, there have not flaws, such as aging, crackle, absciss layer, packaging materials have good temperature sensitivity and compatibility with optical fiber;have designed the simple and practical packaging components, have performed a serials of experiments about accuracy and repetition of FBG wave-length, have obtained the first step conclusion;have analyzed the result and made comparison between the result of different experiment, have summarized the best packaging effect and several rules to reduce mistskes.
本文所做的主要工作包括以下几个内容:一、选取了常见的热膨胀系数大的材料制作封装元件,经过多次一80℃到80℃反复测试,封装元件没有出现老化开裂、封装裂纹、空洞、离层等缺陷,封装材料具有良好的温敏稳定性及复用性,与光纤相容性较好;二、对光纤光栅进行简单、实用的封装处理,就封装效果的优劣性、波长测量的准确度、重复性和封装时产生的波长损失等方面进行了一系列的实验,得出了初步的结论;三、对温敏和温度补偿式封装的实验数据进行了详细的分析和对比,从数字上对温变过程中光纤光栅中心波长的改变及温变曲线进行了定量的分析,在大量实验数据分析结果的基础上,总结出哪种材料封装效果更好,以及如何有效的减小实验误差。
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This paper presented the research and exploration of mechanism and technics as well as the design of the magnetic circuit of this new compound machining, based on above, establishing the parameter model, meantime, analyzing influential effects on productivity of magnetic and EDM compound machining the holes through large numbers of experiments, including velcoity contrast experiments of pre-compound and after-compound machining with the change of current, velcoity contrast experiments of pre-compound and after-compound machining with the change of magnetic induction, velcoity contrast experiments of pre-compound and after-compound machining with the change of impulse width, experiments of the superficial roughness, experiments of the Electrode wastage, and intersectant experiments analysis as well as the change experiments of current waveforms. Through a number of experiments we analysed the influential effects of magnetic and EDM compound machining, compared the factors with EDM by oneself. A large of experiment records and deducibility have demonstrated that the productivity of magnetic and EDM compound machining is developed by 20%~400% than traditional EDM.
本论文对磁场电火花复合加工这种新的复合加工的机理、工艺和复合加工的磁路设计进行了研究和探索,在此基础上,建立了磁场电火花复合加工的参数模型,同时通过大量的随着电流变化磁场电火花复合前后加工速度对比实验、磁感应强度变化时的加工速度变化实验、随脉冲宽度变化的加工速度实验、表面粗糙度实验、电极损耗量实验、磁场电火花复合加工正交实验分析、电流波形变化等实验,实验分析了影响磁场电火花小孔加工效率的因素,并且跟单一的电火花加工中的影响因数进行了比较,大量的实验数据和理论推导证明磁场电火花复合加工比传统的单一电火花加工的效率提高了20%~400%左右。
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It solves the problem that the unitary contour presentation can not correctly extract face contour in a face image which suffers from scale, rotation etc. The definition of the internal and external energy function is provided. At the same time, the global matching algorithm and local matching algorithm is given. The experiment shows that this presentation and the accompanying matching algorithm can be used to extract the face contour very well. So the image segmentation can be implemented by using it.②By analyzing the recognition principle of PCA method, we can conclude that the face images coming from different surrounding consist of different face image space. This is the essential reason that makes the generality of PCA method worse. Also, we give a measurement means to measure the distance from different face image space, so we can analyze face image space more conveniently.③We also construct various scale models and rotation pose models to detect the scale and rotating angle of face image to be recognized. The experiment results show that the detecting precision is very high. So it is good for face image feature extraction and face image representation.④Similarly, we construct local feature models of face image and utilize them to detect the local feature of face image. At the same time, we put forward a novel face image local feature detection algorithm, locating step by step. The experiment results show that this method can accurately detect the location of local face feature in a image.⑤A novel face image presentation model, dual attribute graph , is put forward. Firstly, it utilizes attribute graph to present the face image, then exact the local principal component coefficient and Gabor transform coefficient of thc pixels which corresponds to the nodes of the graph as the attribute of the nodes. This representation fully makes use of the statistical characteristic of the local face feature and utilizes Gabor transform to present the topographical structure of face image. So DAG has more general property.⑥Based on the DAG presentation, we give a DAG matching function and matching algorithm. During the design of the function and algorithm, the noise factor, e. g., lighting, scale and rotation pose are considered and tried to be eliminated. So the algorithm can give more general property.⑦A general face image recognition system is implemented. The experiment show the system can get better recognition performance under the noise surrounding of lighting, scale and rotation pose.
本文在上述研究的基础上,取得了如下主要研究成果:①构造了一个通用的人脸轮廓模型表示,解决了由于人脸图象尺度、旋转等因素而使得仅用单一轮廓表示无法正确提取人脸轮廓的问题,并给出了模型内、外能函数的定义,同时给出了模型的全局与局部匹配算法,实验表明,使用这种表示形式以及匹配算法,能够较好地提取人脸图象的轮廓,可实际用于人脸图象的分割;②深入分析了PCA方法的识别机制,得出不同成象条件下的人脸图象构成不同的人脸图象空间的结论,同时指出这也是造成PCA方法通用性较差的本质原因,并给出了不同人脸空间距离的一种度量方法,使用该度量方法能够直观地对人脸图象空间进行分析;③构造了各种尺度模板、旋转姿势模板以用于探测待识人脸图象的尺度、旋转角度,实验结果表明,探测精确度很高,从而有利于人脸图象特征提取,以及图象的有效表示;④构造了人脸图象的各局部特征模板,用于人脸图象局部特征的探测;同时提出了一种新的人脸图象局部特征探测法---逐步求精定位法,实验结果表明,使用这种方法能够精确地得到人脸图象各局部特征的位置;⑤提出了一种新的人脸图象表示法---双属性图表示法;利用属性图来表示人脸图象,并提取图节点对应图象位置的局部主成分特征系数以及Gabor变换系数作为图节点的属性,这种表示方法充分利用了人脸图象的局部特征的统计特性,并且使用Gabor变换来反映人脸图象的拓扑结构,从而使得双属性图表示法具有较强的通用性;⑥在双属性图表示的基础上,给出双属性图匹配函数及匹配算法,在函数及算法设计过程中,考虑并解决了光照、尺度、旋转姿势变化等因素对人脸图象识别的影响,使得匹配算法具有较强的通用性;⑦设计并实现了一个通用的人脸图象识别系统,实验结果表明,该系统在图象光照、尺度、旋转姿势情况下,得到了较好的识别效果。
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Hence, we first analyzed and studied the kinematics and dynamics of PDC bit, and that are utilized to analyzed how to hame cutters by PDC bit whirlpool. Onthe based of this, we do the cutting experiments. With the test, we not only think over the influence to force actting on cutters in rock nature, drilling parameter, cuttersdensity distributed, and also wear state of cutters and PDC bit appearance. Because the PDC bit's cutters are repeaded by polycrystalline-diamand and tungsten carbide, the specific property of PDC wear are not alike that of polycrystalline-diamand and not alike tungsten carbide.
因此,本文首先分析研究了PDC钻头的运动学和动力学,并利用分析的结果对PDC钻头的涡动是如何损坏切削齿的进行了探讨;在此基础上,进行了PDC钻头切削齿的受力实验,在受力实验研究中,不仅考虑了岩性、钻进参数、布齿密度等对切削齿受力的影响,而且考虑了切削齿不同的磨损状态、钻头的冠部形状对切削齿受力的影响;PDC钻头的切削齿是由聚晶金刚石层和碳化钨底层复合而成的,它的磨损特点既不同于金刚石的磨损又不同于碳化钨的磨损,因此,在分析了复合片磨损机理的基础上,进行了PDC钻头切削齿的磨损实验。
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First by testing the practical multilayer insulation in a cryogenic tanker, which is the carilometer in my paper,some affecting factors on multilayer insulation are analysed, then by using the low-temperature and vacuum environment caused by multilayer insulation, the effective thermal conductivity of multiple fiber paper with 5 layers is tested.Through Newton interativemethod,an empirical formula is deduced to computer the thermal conductivity of fiber paper,The errors between experimental thermal conductivity and the calculated conductivity by empirical formula are below10%,so the formula of fiber conductivity can be applied to practical enginnering.
为探索改善工程应用中高真空多层绝热层绝热性能的方法,本文实验研究中首先测量了包扎在实际低温储罐上不同结构的高真空多层绝热层的绝热性能,并分析了环境温度、环境压力,层数、不同隔热材料的组合等因素对工程应用中的高真空多层材料绝热性能的影响;然后利用多层绝热层中的低温真空环境测量5层干法纸在不同温度区间内的表观导热系数,在有限实验数据的基础上用牛顿迭代数值拟和出计算5层干法纸表观导热系数的经验公式,对比经验公式计算值和实验测量值,发现二者的误差在10%以内,因此在工程应用中可用本文的经验公式计算干法纸在低温下的导热系数。
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Experiment Validation of Hydrodynamics Model of Drum Level The experiment rig was designed, and the experiment equipment was also set up. The experiment results show: As the validation of sloshing period under different levels, maximum error between the results of the experiment and the model is within±10%. As the experiment validation of model under in-and-output flux, changing trends of results of the model and the experiment are consistent, though there is some error in sloshing amplitude, the numeric error is within±20%.
2汽包水位水动力学模型的实验验证设计了实验台架,并建立了实验装置,实验结果表明:就不同水位情况下晃荡周期的验证而言,实验结果与模型计算结果之间的数值误差在±10%以内;就有进出口流量的情况下模型的实验验证而言,模型仿真结果的变化趋势与实验结果基本上是一致的,尽管晃荡幅度和相位上还是存在一定的误差,但其数值误差在±20%以内。
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This article that focuses on the systematic and in-depth research in the current primal problem about abnormal burst pressure reservoir depress burst pressure has procured following main fruits:1 It forms the method which could obtain massive vertical static state mechanics parameters.2 In a foundation of acquisition of rock mechanics parameters,apply bent lamella that as mechanical model along with characteristic of actual geologic characteristics to analysis curvature for anticlinal strcture, get homologous tectonic stress value throug relation between the curvature and stress and different principal curvature in anticlinal structure,consequently set up laminational stress model for anticline reservoir. The block lamination for existed fracturing date has formed method of setting up mechanical model of lamination terrestrial stress by abtaining the block tectonic stress coefficients which are got by complex utilization test, laboratory test and fracturing date playback.3 Analysesing the main reason which lead to high burst pressure by considering the characteristic of reservoir geology,reservoir,and rock mechanics and reservoir damage,etc.Establishing burst pressure quantitative prediction model which provide gist for depressing construction risk and optimizing construction craft under the condition of open hole completion ,gun-perforated completion and damaged reservoir.4 Provding theoretical basis for interpreting acidification pretreatment which could depress busrt pressure by finding the relation between the influencing factors and rock machanics parameters and analysing the factors that have effect on rock mechanics parameters. Expounding the mechanism of reaction of mixed monomineral and acid from the angle of microcosmic element, evaluating quantitatively acid sensilility of different kinds of mineral effectively, and determing the first-order reaction dynamical equation of each mineral.5 Revealing rock mechanics property chage as a result of acid flooding in different condition by sandstone traumata experiment in different temperatures which combined with rock mechanics triaxial stress experiment.6 Associating damage mechanics with sandstone acidizing, established sandstone damage mechanics model in the foundation of the recognition on the rock mechanics parametric variation which is caused by acid-rock reaction in both macroscopic view and microscopic view ,also demonstrated those processes and quantitative estimated the acid busrt pressure to direct the site operation.
本文针对目前异常破裂压力储层降低破裂压力的主要问题展开较为系统和深入的研究,取得了以下主要成果:1形成了利用测井资料,结合室内岩芯测试结果,获取静动岩石力学参数的相关性特征,从而获得纵向上大量静态力学参数的方法。2在获取了岩石力学参数的此基础上,利用弯曲薄板作为力学模型,结合区块实际地质特征对背斜构造进行曲率分析,通过曲率与应力的关系,利用背斜构造不同部位的主曲率求得相应的构造应力值,从而建立起背斜储层的分层应力模型;对已有压裂资料的区块分层,形成了综合利用测试、室内实验、压裂资料反演获得该区块构造应力系数,建立起分层地应力的力学模型的方法。3综合考虑储层地质、油藏、岩石力学特性和储层伤害等因素,分析造成高破裂压力的主要原因,综合利用岩石力学、弹性力学等知识,建立了裸眼完井、射孔完井条件下以及储层受到伤害后的储层破裂压力定量预测模型,为降低施工风险和优化施工工艺提供了依据。4完成了物性、岩性影响岩石力学参数的因素分析,找出了各影响因素和岩石力学参数之间的关系,为从机理上解释酸化预处理降低破裂压力提供了理论基础;从微观元素的角度阐述了单矿物与酸反应的机理;并在此基础上,有效评价了各种矿物的酸敏感性,定量确定了岩石中各矿物的一级反应动力学方程。5完成了不同温度下的酸液类型、酸液浓度、注酸量等一系列砂岩损伤实验,结合岩石力学三轴应力实验,系统揭示了在不同条件下注酸而引起的岩石力学性质变化。6将损伤力学与砂岩酸化相结合,在宏观、微观两个方面认识酸岩反应引起岩石力学参数变化基础上,建立了砂岩损伤力学模型,并对其进行验证,在此基础上定量计算酸化后的破裂压力,有效指导现场施工
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By systemic researching and simulating experiment, the text gains such results as follows,1. On the base of sufficiency research on the oil-gas hydrocarbon systemic chemistry composing and the physical chemistry characters, we traverse the mechanism of the paraffin's deposition. Then we consider that paraffin deposition is a complex process ofphysical chemistry, which includes more than one single mechanism.2. Traversing and comparing the literature in detail on different factors that has effect on paraffin deposition, the available experimental methods on paraffin deposition, prevention of paraffin deposition, and removing of the deposited paraffin on the spot.3. Ameliorated the laser equipment of solid particle inspecting system and the corresponding test methods. Determine WCT of dead oil and live oil from KS101 well under different pressure with this system. The result implies that dead oil has opposite regulation on paraffin deposition temperature to live oil.4. A vapor-liquid-solid envelop is drawn by superposition regular vapor-liquid envelop and WCT curve thereby explained that the departure and quick raising of the curve in the low temperature zone is caused by the appearance of paraffin in solid phase.5. Estimation is made to determine the depth of paraffin deposition in the well.
通过系统的研究和实验模拟,本文取得了以下研究成果:(1)在充分调研油气烃类体系的化学组成及其物理化学特征的基础上,详细研究了石蜡沉降的机理,认为石蜡沉积是一个复杂的物理化学过程,是多种机理共同作用的结果;(2)深入调研并综合阐述了影响石蜡固相沉积的各种主要因素,对目前国内外常用的有机固相沉积实验研究方法和现场清防蜡措施也做出详尽的描述,并加以对比评价;(3)改进了油气藏开发重点实验室自行研制组装的高温高压下测定固相沉积的激光装置和测试方法,并用该套设备测定出柯深101井的井口脱气油样和凝析气平衡油样不同压力下的析蜡点,实验结果表明,脱气油和平衡油析蜡规律相反;(4)将常规气-液两相相图和析蜡曲线叠加得到了气—液—固三相相图,从而解释了气-液两相等液量线在低温区域偏离正常并快速上翘是由于体系有石蜡固相出现;(5)利用实验测试的析蜡温度预测析蜡位置,表明只有在距井口465m油管以上会有蜡析出。
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The periostea of both experimental and control side of the mandibular ramus were taken and prepared, 2 of each 5 rabbits in a group were prepared for HE stain detection and 3 for proliferating cell nuclear antigen immunohistochemical detection.Results:1, The newly formed bone was detected on the lateral aspect of mandibular ramus after periosteal distraction. The bone was shaped like a hill. It looked very low and was full of holes at postoperative day 28. With the time of consolidation period lengthened, the newly formed bone matured gradually. X-ray examination showed the new bone shaped like a hill. The average values of new bone height at postoperative days 28,35,42 and 56 were 1.86 + 0.15mm, 2.29 + 0.29mm,3.19 + 0.13mm and 4.70 + 0.45mm. Histological examination of both HE stain and picricacid-fuchsin stain showed the increase in the number of osteoblasts and the change in the orientation of collagen fibers and bone trabecula. There were no significant differences between newly formed bone and original bone on the lateral aspect of mandibular ramus at postoperative day 56 histologically.2 Compared with the control side, the distracted periostea proliferated obviously under the microscope, and the number of periostealcells increased with satiation of cellular nuclear per unit area. The images of PCNA immunohistochemical stain of periosteum showed that the experimental periosteum proliferated obviously after distraction compared with the control side.
结果:骨膜牵张成骨的实验研究南京医科大学硕{学位论文l、骨膜牵张后,可见下领升支外侧的骨皮质上有新骨形成,新骨呈山峰状凸起,术后第28天的新生骨较低平,多孔隙,随着固定时间的延长,新骨逐渐成熟;下领升支前后向切线位X线投照显示新骨呈山峰样隆起;经测量,术后第28、35、42和56天组平均新生骨厚度分别为x.86士0.15mm、2.29士0.29mm、3.19士0.13mm和4.70 土0.45mm;脱钙骨组织的HE染色和不脱钙骨组织的苦味酸一品红染色的组织学观察均显示了新生骨在成骨细胞数量上的增长,以及胶原纤维和骨小梁排列方向上的变化,术后第56天的新生骨在组织学上与原升支骨组织已无明显区别。2、HE染色显示,与对照组相比较,实验侧骨膜增生明显,细胞间排列紧密,单位面积内骨膜细胞数增多,细胞核饱满;骨膜PCNA 免疫组化染色显示,与对照侧相比较,实验侧骨膜在牵张后出现了明显的增生迹象,PCNA阳性细胞分布紧密,单位面积内阳性细胞数较对照组多,靠近骨表面的骨膜中的阳性细胞数更多而且分布更为紧密。
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Co-firing characteristics of corn stalk and stone coal in different proportion were investigated by thermal gravimetric analysis. The results showed that corn stalk can improve the ignition and combustion of stone coal. The agglomeration experiments on corn stalk were made in a bench-scale bubbling fluidized bed with quartz sand as bed material and stone coal ash as additive. The results indicate that stone coal ash can inhibit agglomeration of bed material particles at temperature of 900℃. Agglomerate of blends was analyzed by means of scanning electron microscopy, energy-dispersive X-ray, and the bed materials were analyzed by means of X-ray fluorescence. Analysis showed that aluminum element and iron element in stone coal ash can react with alkali compounds and eutectics with low melting point, form a covering layer with high melting point on the surface of biomass and quart sand particles, thus inhibit the forming and transfer of low melting compounds.
以玉米秸秆与石煤按不同比例组成的混合物为研究对象,在TG-DTG热分析仪上进行了燃烧特性分析,结果表明玉米秸秆有利于石煤的着火和稳定燃烧,对石煤有一定的助燃作用;在小型鼓泡流化床实验装置上,以石英砂为床料、石煤灰为添加剂,进行了玉米秸秆成型燃料流化床燃烧的床料黏结实验,结果表明:石煤灰能够在生物质流态化燃烧过程中有效地抑制流化床床料黏结现象的发生;通过对实验中形成的结团进行扫描电子显微镜X射线能谱(scanning electron microscopy/Energy-dispersive X-ray- SEM/EDX),对床料进行X射线荧光光谱(X-ray fluorescence,XRF)分析,结果表明石煤灰中的Al和Fe能够与生物质灰中的碱金属化合物以及低熔点共熔物发生化学反应生成高熔点物质,并且覆盖在生物质碳颗粒与石英砂颗粒表面形成隔绝层,从而阻止低熔点物质的生成与迁移。
- 推荐网络例句
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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.
曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。
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The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.
稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。
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When I was in school, the rabbi explained everythingin the Bible two different ways.
当我上学的时候,老师解释《圣经》用两种不同的方法。