甚至利用数学模型和计算工具,也将不会有“理想琴丝”,因为物理参数是钢琴固有的,巴丁说。
Even with math models and calculations, there will never be an "ideal string" because of the physical parameters inherent to the piano, Patin said.
对于天然丝,他们的研究方法采用计算机模型,来帮助确定使天然丝材料具有卓越力学特性的分子与原子机制。
With silk, that means using computer models that help determine the molecular and atomic mechanisms responsible for the material's remarkable mechanical properties.
现在,新的模型使用漂亮的,有光泽的镀铬六角形镙丝。
用BP人工神经网络建立了重载丝杆螺母副的摩擦学特性与载荷之间关系的磨损自补偿数学模型。
The BP neural network used the wear-self-compensation mathematics model of the relationship of tribology characteristic with load of the heavy load screw-nut pairs was established.
研究了热带假丝酵母降解苯酚的过程中底物苯酚随时间的变化,建立了苯酚降解动力学模型;
The study was conducted to evaluate change rate of phenol about Candida tropicalis degrading phenol. A degradation kinetics model was found.
本文用双隐层BP人工神经网络建立了丝杆螺母副表面边界膜温度特性的磨损自补偿数学模型。
The BP neural network used in the temperature characteristic of the boundary film on the screw-nut pairs surface in the wear-self-compensation system was established.
构造了三维混合层流场用离散涡丝描述的计算模型并进行了数值模拟。
A model of computation for three-dimensional mixing layers described by discrete vortex filaments is built.
在水平轴风力机模型不同尖速比条件下,利用旋转单斜丝热线在风轮下游进行尾迹流场速度测量。
An experimental investigation into the properties of the wake behind a horizontal-axis wind turbine (HAWT) rotor is carried out at model scale, using a single slanted hot-wire probe.
目的:探讨形成镍钛弓丝有限元模型动态可视化应力云图的方法。
Objective: To discuss a method about shaping a dynamic and visualizational color stress cloud chart of finite element model of Ni-Ti arch wire for orthodontics.
用有限差分法对该模型方程进行求解,得出了桥丝式电火工品的三维温度场分布,并对结果进行了分析。
The model equations are computed by means of a finite-difference method. The three dimensions of temperature fields for EED are gained and the results are discussed.
应用传热学理论,建立材料丝在液化管中的熔融模型。采用数值解方法,求出该模型的解。
By applying theory of heat transfer, a melting model of material filament in liquefied pipeline is built and solved by numerical method.
但就如何将爆丝模型用于解释液中放电产生的各种效应还缺乏有效的工作。
But there are few works on how to use the wire model to explain every kind of effect caused by discharging in liquid.
两种模型的仿真结果与工艺试验结果比较表明,双椭球形热源模型比高斯热源模型更适合双丝焊的三维有限元分析。
The comparisons between the simulated results of two models and experiments show that double ellipsoidal model is better than Gaussian model on three-dimensional analysis.
然后,研究斜拉索腐蚀的机理和评定方法及断丝监测手段等,并建立了相关的抗力退化模型。
Then, corrosion mechanism, assessing method and way to monitor the broken cables are researched and various degradation models are obtained.
方法:建立裸鼠人肝癌BEL-7402移植瘤模型,观察酪丝亮肽对荷瘤裸鼠肿瘤生长的抑制作用;
Methods: The animal model of human hepatocarcinoma BEL-7402 transplanted in nude is established to observe anticancer effect of tyroserleutide;
从理论上分析了纬平针织物钩丝的力学规律,提出了相应的物理模型和数学方程序,设计了新的钩丝测试方法。
The snag mechanism is analysed for plain - knitted fabric with proposed physical model and mathematical equation of snag processing. A new testing method is designed and results are introduced.
以PAN原丝成形的实验数据为基础,建立简单的纤维成形数学模型。
According to the experimental data of PAN precursor forming, a simple mathematic model of fiber forming was established.
基于一简单模型和叠加原理,分别研究了单丝和多丝化学气相沉积(CVD)系统的温度场及基底表面的温度分布。
Temperature profile in single and multi filament CVD system and temperature distribution in the substrate surface were analysised based on a simplified model and the addition principle respectively.
提出了一种用六丝悬吊法控制形状复杂或不规则目标飞行物姿态的方案,建立了数学模型,着重论述了用反解迭代逼近绳长的算法进行位姿求解的思路。
We propose a six-wire suspension method to control the attitude of a flyer of complicated or irregular shape and set up its mathematical model.
提出了一个涤纶高速预取向丝凝固过程的模型。
A model of the solidification process during the high speed PET-POY spinning is proposed.
带方丝弓托槽的正畸示范模型。
Orthodontic model for demonstration With Edgewise Orthodontic bracket.
介绍了一种新的丝张力测量法并给出了中心漂移室(模型)丝张力的测量结果。
The results of wire tension measurement for a prototype of central drift chamber are given.
用双隐层BP人工神经网络,建立了丝杆螺母副的磨损率与滑动速度关系的数学模型。
By the use of double hidden layered BP artificial neural network a mathematical model of relationship between wear rate of screw-nut pair and sliding speed is established.
提出了拉拔钽丝的再结晶织构模型。
A recrystallization model of BCC metal was proposed to explain the evolution of tantalum textures.
本研究旨在探讨在数字化牙颌模型基础上个体化直丝弓托槽及辅助定位托盘的计算机辅助设计与制造的可行性。
This paper discusses the feasibility of individualized straight-wire brackets and its positioning trays design and manufacturing based on digital dental model with computer-aided technology.
并对经过长期贮存的绕丝可燃药筒进行多项性能检测,研究影响其贮存寿命的薄弱点和失效模型。
The weakness influencing the storage life and the failure mode was studied through various kinds of test on the winding flammable cartridge cases after long-term storage.
利用GZ-1型热风干燥试验台对低浓度糖盐混合溶液渗后胡萝卜丝进行单困子试验,初步确定了物料干燥过程中的临界水分值,得出不同风温、风速下的薄层脱水模型。
In this paper, test and research on the air-drying performance for carrot slit after osmosis lower concentration solution (sugar+NaCl) were conducted on the air-drying trst desk (Model GZ-1).
研究了聚碳矽烷(PCS)熔体在Y型喷丝孔中的挤出胀大机理、膨胀模型以及膨胀比对Y型碳化矽纤维异形度的影响。
The die-swell mechanism of polycarbasilane(PCS) melt for a spinneret with Y-shaped orifice and the effect of die swelling of PCS on the profile degree (PD) of Y-shaped SiC were investigated.
根据等离子体边界附近的磁场测量信号,利用电流丝模型快速识别了等离子体的边界。
The plasma boundary can be identified by filament current method with the magnetic signals from probes around the plasma.
根据等离子体边界附近的磁场测量信号,利用电流丝模型快速识别了等离子体的边界。
The plasma boundary can be identified by filament current method with the magnetic signals from probes around the plasma.
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