在离子温度梯度模(ITG)湍流背景中,通过最小自由度模型中模耦合方式产生带状流,对此模型做了动力学稳定性分析及数值求解。
The energy cascade process in the ITG mode turbulence and the relationship between Reynolds stress and zonal flow are also discussed.
直接利用激光快速成型的原型树脂模,结合陶瓷型精密铸造技术,制得了高精度、低表面粗糙度、高使用寿命的钢模具。
The steel dies with high dimensional accuracy, low surface roughness and long service life have been quickly produced by using prototyping resin molds as patterns of ceramic investment casting.
整个合模过程模板精确的平行度。
与单检测器相比,平衡式检测具备更高的灵敏度,因为这种检测方式拒绝共模噪声,而且光能利用率更高。
Balanced detection provides better sensitivity over a single detector because it rejects common mode noise and is more efficient in light usage.
本机可视鞋面翘度简易更换刀模,使鞋面翘度与楦头翘度一致,减少损耗。
This machine can change the wiper as the upper curve, making them consistently, reduce the lose.
液压控制齿轮调模装置,操作简单,稳定保持头板及中板之平行度;
Mould adjustment system is drive by hydraulic controlled gear transmission, which is easy for operation and can keep parallelity between head plate and middle platen.
作者采用这种方法,对大椭圆度的球形马克中的倾斜模不稳定性进行了研究。
An application is made to the problem of the tilting mode instability for spheromak without restriction in ellipticity .
并采用模拟退火的适应度拉伸方法,探讨了有效地提高航空钛板拉延模试冲时的缺陷诊断准确率的优化方法。
By using the sufficiency drawing method for annealing simulation, the optimization method for improving the defect diagnosis accuracy of aeronautical ti sheet drawing die is discussed.
简要说明滑模摊铺机配套设备配合比设计,施工工艺及提高水泥混凝土路面的内在质量和动态平整度。
The text discusses mixture ratio design and construction technics of corollary equipment of slide spreading machine, and improve internal quality of cement concrete pavement and dynamic smoothness.
设计了滑模控制器和PID控制器分别对节气门开度和点火时刻进行自适应调节。
Both sliding mode controller and PID controller are designed to realize adaptive regulation of throttle opening and ignition timing respectively.
对长周期光纤光栅传输谱谐振波长的应变特性用耦合模理论进行研究,推导出谐振波长应变灵敏度的解析表达式。
The strain sensitivity characteristic of long-period fibre grating (LPFG) was studied by coupled-mode theory and the strain sensitivity analytic equation of the resonant wavelength was deduced.
形形色色的模因为自身的生存而激烈的斗争,只有那些适应自己的生存坏境,在保真度,多产性,长寿性三方面表现值均比较高的模因才有可能获胜。
Vast and various memes compete for survival in their living environment, and only those which have higher value in fidelity, fecundity and longevity have the chance to win out.
算法基于混合模体模型学习,采用贪心策略,通过似然度最大化,逐次将新的模体加入到混合模型中。
Based on mixture motifs model learning through likelihood maximization, a greedy strategy that adds sequentially new motif to a mixture model is employed.
通过数值计算分析了原子运动速度、场模结构参数和平均光子数对光场二阶相干度和模间相干度的影响。
The influence of atomic motion, the field structure and intensity of photons on second-order correlation function and two-mode correlation function are obtained by numerical calculation.
结合模流分析结果进行了浇注系统和冷却设计,保证产品有合理的外观品质及平整度。
The Moldflow analysis was introduced to designs of runners and cooling systems so as to ensure the appearance quality and surface level.
在多台动模机组上做了大量相关试验,验证了本文所提出数学模型的正确性和有效性以及保护方案的灵敏度与可靠性。
A large number of experiments on different generators verify that the mathematical model is correct and effective, and that the protection schemes are sensitive and reliable.
将车辆模化为七自由度振动系统,采用频域法进行随机响应计算。
The vehicle is modelled as a vibration system with seven degrees of freedom.
为保证面板的质量,对砂石骨料、水泥、外加剂和坡面平整度、侧模安装质量及混凝土的塌落度等进行了严格的控制。
To ensure the quality of the deck, the quality of sand gravel aggregate, cement, additives, leveling of slope face and erection of lateral forms, and the collapse degree were controlled strictly.
并结合调制信号的恒模特性,提出了基于广义峭度的恒模盲信号提取算法。
Jointed the constant module (CM) character of digital modulated signal, the CM generalized kurtosis algorithm is deduced.
基于笔者提出的模糊灾度概念,给出了可用于各类灾害损失的等级划分的模湖综合评判方法。
Based upon the concept of the fuzzy disaster intensity proposed by the author, the method of fuzzy comprehensive evaluation applied in classification of disaster losses are also derived.
实验通过观察双纵模稳定激光的模式输出,分析了影响激光频率复现性与频率稳定度的因素,测量了稳定激光的功率和频率稳定度。
Through the experiment, the authors analyzed the factors which affect the laser frequency repetition and stabilization, and measured the stabilized laser power and the frequency stabilization.
在用偏振度作为反馈信号的动态偏振模色散补偿系统中,偏振度与差分群延时的关系对于准确快速的动态偏振模色散补偿很重要。
It is important to know how does the degree of polarization (DOP) change with differential group delay (DGD) when DOP is feedback information for adaptive PMD compensation.
添加高亮区域:我用素模去添加我刚才渲染的不同反射,这增加了图像的对比度。
Adding highlights With the clean model I went about adding the different reflection passes I rendered earlier - this adds more contrast to the image.
凸模和凹模,可根据客户要求进行精加工,表面光洁度高,公差准确。
Punch and die, according to customer requirements for finishing, surface finish, tolerances.
本机可视鞋面敲度角度简易更换刀模,使鞋面敲度与楦头敲度一致,减少损耗。
Visualization of the machine vamps Alice degree Angle simple replacement knife mould, uppers interpretations of the first degree and the last line was looking to reduce loss.
研究了负压度、模样密度、浇注温度、金属静压头等工艺因素对消失模铸铁件充型速度的影响规律。
The filling speed of lost foam cast iron casting was measured by use of an integrated set of experimental equipment and a specially designed computer acquisition system.
研究了负压度、模样密度、浇注温度、金属静压头等工艺因素对消失模铸铁件充型速度的影响规律。
The filling speed of lost foam cast iron casting was measured by use of an integrated set of experimental equipment and a specially designed computer acquisition system.
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