This paper analysises the reason of losing step or crawling when step motor accelerate or decelerate,and introduces a method to accelerate or decelerate the speed of step motor controlled by singlechip following S curve.
分析了步进电机升降频时发生失步、过冲的原因,提出了一种单片机控制的步进电机按S形曲线升降频的方法。
We formulate double S-shape curve model.
在Logistic模型的基础上,对一类空间饱和容量会随着时间发生变化的问题进行了讨论,指出了Lo-gistic模型应用在这类问题上的局限性,建立了解决该类问题的双S形曲线模型。
In order to reduce the impulsion of the platform during the moving part accelerates or decelerates,it takes S-curve to smooth the kinematic trajectory of the positioning system.
为了减小运动部件加减速过程中对整个平台的冲击,在进行运动轨迹规划时,采用了S形曲线对定位系统的运动轨迹进行了平滑处理,有效降低了运动部件对系统的冲击,有利于系统的减振。
The flexibility of Richards growth model to the sigmoid form of the growth is analyzied thoroughly in this paper.
本文分析了生长模型对S形生长的弹性描述能力，绘制了参数b3从0到10变化时模型形状变化的空间曲面图形，给出了确定模型拐点等特征点的方法，讨论了模型参数具有生物学意义的取值范围和建模时应注意的问题。
Nonlinear Regression Model of Generalized S-Curve and Its Applications in Bibliometrics;
广义S形曲线非线性回归模型及其在文献计量学中的应用
small pale-colored desert rattlesnake of southwestern United States; body moves in an S-shaped curve.
美国西南部沙漠中的苍白色的小响尾蛇；身体以S形曲线移动。
A roofing tile with an S - shaped profile, laid so that the down curve of one tile overlaps the up curve of the next one.
波形瓦横断面为不对称的S形曲线的一种屋顶瓦，交替放置以使各相邻瓦片之间的曲线上下衔接
ogee curve
双弯曲线, s形曲线
The external auditory canal makes a slightly S-shaped curve.
外听道形如一S型的曲线。
[font=Tahoma][size=3]Here's another S curve that forms a diagonal leading line.
这是另一种s曲线，它形成了一条对角指引线。
So, the S curve is an attractive shape to look for when you compose a photograph.
因此，S曲线在构图时是一个很能吸引人的形状。
Construction Methods about Inverted S-shaped Steel Concrete Duct Shuttering;
倒“S”曲线形钢筋混凝土风道模板施工方法
isothermal transformation curve
(c曲线, S曲线) 等温转变曲线
Method of Estimating In-plane Shear S-N Curve of Unidirectional Laminate from Off-axis Tension S -N Curve
由单向层压板偏轴拉伸S-N曲线估算面内剪切S-N曲线的方法
Forming a curved configuration.
成曲线形的，弯曲的
The Realization of S-curve of Trigonometric Function on TMS320F2812 Chip
三角函数S曲线在芯片TMS320F2812上的实现
Experimental Research on P-S-N Curve of Concrete Fatigue Life
混凝土疲劳寿命P-S-N曲线的试验
The flamingo has relaxed, and his neck now forms a pleasing S curve against a better background.
火烈鸟现在很悠闲，它的脖子在一个较好的背景的映衬下形成了一个优美的S曲线。
Dynamic Origin of the S-shape Demand Curve:A Population Model of Fashion Goods with Social Interaction among Consumers
S形需求曲线的动态起源——消费者社会相互作用下时尚商品的群体模型
A bend or curve, especially in a shoreline.
弯曲，弓形弯曲或弓形，尤指海岸线
Numerical Study of Nonlinear Pulsatile Flow in S-Shaped Curved Arteries;
S型弯曲动脉中非线性脉动流的数值研究
Extreme Maximum Model and Application for the Probabilistic Fatigue S-N Relations;
概率疲劳设计S-N曲线的极大值模型及应用