查询词典 spontaneous potential method
- 与 spontaneous potential method 相关的网络例句 [注:此内容来源于网络,仅供参考]
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As to the type study, classification was adopted from different latitude. According to the different representation of spontaneous music, the behavior was classified into spontaneous singing, spontaneous body movement and spontaneous odyssey of the rhythm. According to different form of spontaneous music behavior, it can be classified into unceremonious spontaneous music behavior and formless spontaneous music behavior In the feature study, pleasantness, the unity of children's feeling, changing accord to the circumstances and suddenly occurring were adopted.
在对幼儿自发音乐行为的类型划分部分,研究者从不同纬度将幼儿自发音乐行为分别进行了划分:根据自发音乐行为的不同音乐表现方式,可以分为自发哼唱、自发身体舞动和自发性节奏探索;根据自发音乐行为的不同呈现形式,可以分为定形的自发音乐行为和不定形的自发音乐行为。
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Different strains have different reaction to the delay of oviducts in body after animal death. After 10min delay C57BL/6 mouse oocytes have death rate of 56.5%,significantely higher than Kunming mouse (47.6%);Spontaneous activation rates were respectively 13.3% and 46.0%, C57BL/6 were obviously lower than Kunming mouse.4. The oviducts were obtained after being delayed 5min 24h after the mice were injected with hCG. The oocytes were cultured in CZB. About 81.1% occurred spontaneous activation, evidently lower than parthenogenetic rate (96.4%) with SrCl_2. Spontaneous activable oocytes had high cleavage rate(93.2%) and 4-cell rate(87.3%). However, spontaneous activable oocytes had blastula development rate(18.7%) as low as parthenogenetic oocytes by SrCl_2(22.9%).
不同品系小鼠卵母细胞对输卵管在体内滞留产生的反应不同,滞留10min C57BL/6系小鼠卵母细胞死亡率为56.5%,显著高于昆明鼠(47.6%);自发激活率分别为13.3%和46.0%,C57BL/6系小鼠显著低于昆明鼠。4.hCG后24h体内滞留5min卵母细胞在CZB中培养自发激活率为81.1%,显著低于SrCl_2孤雌激活率(96.4%);自发激活的卵母细胞有较高的卵裂率(93.2%)和4-cell比率(87.3%),但囊胚率(18.7%)较低,同卵龄的卵母细胞经SrCl_2孤雌激活囊胚发育率为22.9%,差异不显著。
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(1)Bullae of lung ruptured spontaneous pneumothorax is the best indication for VATS,which has the advantages of less trauma and ache,short operation time,quick recovery and small incision;(2)Recurrent unilateral spontaneous pneumothorax with contineous air leakage of 7 days after closed thoracic drainage,bilateral spontaneous pneumothorax should be treated by VATS;(3)Spontaneous pneumothorax with pleura adhesion can be treated by pneumonolysis and bullae of lung excision under thoracoscopy assisted small incision operation.
疗效满意。结论:(1)肺大泡破裂自发性气胸是胸腔镜手术最佳的适应证,与传统开胸手术相比,胸腔镜手术具有患者创伤小,手术时间短,术后疼痛轻,康复快,符合美容要求等特点;(2)反复发作的单侧自发性气胸,行胸腔闭式引流术后持续漏气7d,双侧自发性气胸,不论是否同时发作都可考虑胸腔镜手术治疗;(3)自发性气胸并胸膜粘连可用胸腔镜辅助小切口行粘连松解肺大泡切除术;(4)为减少一次性材料的消耗,降低手术成本,可辅助小切口使用常规胸科手术器械完成手术;(5)为减少术后复发率需行胸膜固定术。
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The results indicaled that there were three species forms of spontaneous electrical activity of thoracic ganglions:single spontaneous firing ; burst spontaneous firing ; consecutive spontaneous firing .
本文以柞蚕五龄幼虫为材料,运用微电极电生理技术,以胞外记录的方法,记录了柞蚕虫在体胸神经节的自发放电活动。
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Main points of the thesis are as follows:(1) The main function models and information relations between these models in the CAPP system in the integrated CAD/CAM project are explained, a new process plan design method is mentioned based on analyses of process plan design. This method is based on the process plan prototype, and develops the prototype little by little until the perfect process plan is completed, the prospect of this method is discussed;(2) The feature abstracting rules and methods are studied, a feature coding system is developed based on GT, all the defined feature models are described by the mathematical methods;(3) The integrated method of CAD/CAPP based on features is mentioned, this method defines a feature exchanging model, and develops an interface software to exchange design data into technology data base, this technology data base includes the design and technology information of the parts;(4) The process plan reasoning method based on features is created, this method uses Mycin algorithm to solve the reasoning of the feature process plan. A process plan making system is developed. In this system part process plan is made by the semi-intelligent method, this method uses the feature reasoning, feature process chain searching and man-computer talking together;(5) The main structure of the HOPE system is introduced, a shaft drawing and its process plan made by this system are shown, the data process problem in process drawing making is also discussed;(6) A new method of describing process rule is introduced, this method uses IfThen rules and neural nets weight values together to describe process rules, the BP algorithm is adopted in this method;(7) The optimal machining sequence problem of the process steps on the same fixturing is discussed, optimal algorithms SA is applied to solve this problem, the result shows that this method is more efficient than the traditional method;(8) All jobs in the thesis are summarized. In order to carry out the research in the future, some rational proposals are given.
全文论述的内容主要有下列几个方面:(1)较为系统地阐述了CAD/CAM一体化工程项目中CAPP系统的主要功能模块及其信息流程,在分析工艺设计过程的基础上,提出了基于特征原型的渐进式工艺设计方法,并探讨了该方法的应用前景;(2)研究了零件特征提取的原则和方法,在成组技术的基础上,开发了一套基于特征的分类编码系统,并在提取零件特征的基础上,定义了零件特征的数据模型,开发了基于轴类零件特征的参数化设计系统;(3)研究了基于特征的CAD/CAPP集成的方法,通过定义零件特征数据模型的存储结构,开发了将设计数据转换到工艺数据库中的接口程序,为后续的CAPP系统提供必要的零件形状和工艺信息;(4)研究了基于特征的工艺推理方法,将Mycin算法应用到工艺决策中,开发了基于特征的工艺推理及工艺方案生成系统,在系统中综合运用特征推理、特征加工工艺链查询及人机对话相结合的半智能化方法确定零件加工工艺;(5)介绍了整个HOPE系统的总体结构,通过运行HOPE系统绘出了一轴类零件的零件图,并生成了该零件的加工工艺方案,初步探讨了基于特征的工序图生成技术中数据处理问题;(6)研究了工艺设计过程中知识如何有效表示的问题,提出了将显式的IF-THEN规则表示与隐式神经网络权值表示相结合的工艺知识表示方法,并利用BP算法进行了工艺知识表示的初步研究;(7)研究了工艺设计过程中同一安装下工步优化排序问题,利用神经网络中基于模拟退火的理论来解决该工步优化排序问题,实践证明该方法较传统的算法具有更高的效率;(8)总结了本文所进行的研究工作,为今后进一步开展工作提出了较为合理的建议。
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In this paper, borrowing ideas from the research method of the spontaneous combustion mathematical model of goaf, applying to the hydrodynamic theory of porous medium, the spontaneous combustion mathematical model of coal gangue dump is set up. From the mathematics, the dynamic evolvement process is described for the spontaneous combustion of coal gangue dump.
本文借鉴了采空区自然发火数学模型的研究方法,以多孔介质流体动力学理论为指导,建立了煤矸石山自然发火数学模型,从数学上描述了矸石山自燃的动态演变过程,为自燃矸石山的防治措施提供了理论依据。
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In order to prove the importance of three-body interaction, accurate ArH〓 potential surface and accurate ArAr potential surface are added to construct a two-body potential surface. We found that this potential surface is corresponding with a deep potential well and a tight structure, which is far from the real structure of Ar〓H〓. Obviously, this two-body additive potential surface is not suit in this system.
为了证明三体作用在体系中的重要性,我们用精确的ArH〓的势能面与精确的ArAr的势能面构造了一个两体加和的势能面,发现两体加和的势能面表现的是一个深势阱的紧凑结构,与Ar〓H〓的结构相去甚远,因此可以确认,两体加和在此系统中是不适用的。
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Shandong College of Health Science faculty after poisoning in rabbits EMG de termination after poisoning rabbits found in the resting state. both spontaneous dener ated potential (fibrillation potentials and positive sharp wave) and the beam vibratevp otential; maximal contraction and mixed-interference type discharge, there is increas ed potential multiphase, low voltage and the peak potential way to extend. HeFengsh -eng, etc. right poisoning rabbits leads to fibrillation potential, EMG evidence of pois -oning animals in the performance of patients with clinical line.
山东医学院卫生学教研组对中毒后的家兔进行肌电图测定,发现中毒后家兔在静息状态下,均有自发的失神经电位和束颤电位;最大收缩时有混合型及干扰型放电,还有多相电位增多,低电压和峰电位时程延长[7],何凤生等[5]对中毒家兔也引出纤颤电位,证明肌电图在中毒动物身上的表现与临床患者相一致。
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In this paper Ⅰ successfully applied these methods to fault diagnosis, and presenting some new innovative machinery fault diagnosis method; First Ⅰ present a new gear wornout fault diagnosis method, this method use the vibration signal's time-frequency attribute and instantaneous phase undulation to accurately detect gear's fault, and by comparing with the traditional frequency domain analysis method, this method reveals that many nonlinear and nonstationary characteristic exist in gear's vibration, this tell us that if we use frequency domain analysis method without pay attention to the signal's characteristic, we could get wrong diagnostic result; Then Ⅰ present a new bearing fault diagnosis method, this method use ATVFD and Hilbert transform to do envelop demodulation,Ⅰ analyze the envelop with time-frequency method and find out that this method is more accurate then traditional method.Ⅰ also explain that the modulation of the fault to the carrier wave may also be non-stationary and nonlinear; Finally Ⅰ present a cylinder pressure measurement method of diesel engine by means of vibration, cylinder pressure is an important parameter of diesel engine fault diagnosis, the pressure measuring is simplified a lot by this method,Ⅰ also use the ATVFD and time-frequency analysis to realize it.
本文中将上述理论方法成功地应用到故障诊断中去,提出了几点创新性的诊断方法;提出了一种齿轮磨损故障诊断的新方法,该方法利用振动信号能量的时频域分布特征与瞬时相位波动特征可以进行精确的齿轮故障诊断,并通过与传统的频域诊断方法的比较,揭示出齿轮振动中存在的明显的非线性与非平稳特征,说明了不加选择地利用频域分析方法进行齿轮故障诊断很可能会得到错误的诊断结果;提出了一种轴承故障诊断的新方法,该方法利用ATVFD分解与Hilbert变换进行包络解调,并对解调得到的包络信号进行时频域分析,可以实现更加准确轴承故障诊断,说明了故障对载波信号的调制往往也是非平稳与非线性的;提出了一种利用振动信号进行柴油机汽缸内压力检测的新方法,柴油机汽缸压力的变化是柴油机故障诊断的重要参数,利用振动方法可大大简化汽缸压力的检测过程,该方法也是综合利用ATVFD分解与时频域分析方法实现的。
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In this dissertation, InGaAs/InGaAsP/InP MQW microdisk laser and its characterization were presented. Some conclusions are as following: the characteristics of lasing threshold was discussed by using rate equation. The dependent relations between threshold and cavity volume, spontaneous emission coupling efficiency β were investigated. The whispering gallery mode and spontaneous emission in a microdisk geometry were then studied. Almost all spontaneous emission was coupled into the lowest order TE mode when the normalized thickness of photonics well was between 0.15 and 0.5. The design principle and device process of InGaAs/InGaAsP/InP MQW microdisk laser were presented. The microdisk lasers with the diameter of 8μm, 4. 5μm and 2μm were succesfully fabricated by using etching techniques. The pulse lasing thresholds for the microdisk with the diameter of 8μm and 4. 5μm were 170μW and 15μW, a record results compared with the published in the literature. The cw lasing threshold for a 2-μm-diameter microdisk was only a few μW. We haven't found similar report up to now. To solve the problem of directional output in a microdisk laser, the power coupling efficiency in a double disk geometry was investigated with the theory of waveguide mode couple. A new structure of electrically pumped microdisk laser with output waveguide was designed, making a foundation for the practical use of microdisk laser.
本文主要研究InGaAs/InGaAsP/InP多量子阱半导体碟型激光器的研制和特性表征,并取得如下结果:利用速率方程理论讨论了激光器激射阈值的特性,分析了阈值与腔体积和自发发射耦合系数β之间的关系;讨论了微碟光子阱结构中的自发发射特性和微碟中WGM模式特性;光子阱结构在其归一化厚度在0.15-0.5之间时,几乎全部自发发射进入到最低阶TE模式中;研究了InGaAs/InGaAsP/InP多量子阱微碟激光器的结构设计原理和器件的制备工艺;利用刻蚀方法成功制备出直径分别为8μm、4.5μm、2μm的碟型微腔激光器;直径8μm和4.5μm的微碟脉冲光泵浦激射阈值分别为170μW、15μW,是目前所见文献报导中比较低的;直径2μm的微碟连续光泵浦激射阈值仅几μW,目前尚未见到达到类似结果的研究报导;为解决微碟激光器激射光定向引出的问题,通过波导耦合模理论分析了双层碟之间功率耦合效率;据此设计了新型带耦合输出波导的电泵浦微腔激光器,为进一步研制可实用的电泵浦微腔激光器打下基础。
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- 推荐网络例句
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Among which is the mindset, perceptions and moralities of those who accept mini- military tasks for economic gains.
其中最重要的是心态,观念和道德的人谁接受小型军事任务的经济收益。
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In time course imaging, activity peaked 2 days after coronary ligation.
在时程成像检测,活性峰值在冠脉结扎后2天。
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Though P2P model provides convenience file exchanging environment, but it fallows lots of users pirating in P2P network.
与过去不同的是,在P2P模式中,使用者的盗版行为不仅有下载的行为,也包括了分享的行为。