在日常用语中，这两个词没有区别，可以通用。而在物理学里，velocity 是一个矢量(vector quantity)表示起点与终点间直线距离的长度除以所用时间所得的量，并注明方向：而 speed 是一个数量(scalar quantity)，是指起点到终点所走过的所有路程除以所用时间所得的量，且不标明方向。
Here we first analyse natural image movies to determine the optimal space-time receptive fields (RFs) for encoding local motion speed in a particular direction, given the constraints of the early visual system. Next, from the RF responses to natural stimuli, we determine the neural computations ...
The mechanical work at slow speed, in particular, to the control of the indicators of the direction of motor vehiclesBESSET MICHELBESSET MICHEL
In particular, theoretical work has emphasized a fundamental distinction between decisions about movement direction and decisions about movement timing. These two types of decision are expected to have different distributions of consensus costs, leading to contrasting predictions about whether they are ...
(b) Detrended mean annual wind speed in the Asian region [5]. In 2003, a study was conducted on the coastline of Peninsular Malaysia. The study focuses on analyzing the annual vector mean wind speed and direction according to two seasons, i.e., the northeast and southwest monsoons. The...
This will start a speed test immediately and run for300 secondsin each direction. That is 300 seconds for download and300 secondsfor upload. Save results to a Database EditIndex.html Add multiple servers. The app will choose one with the least latency automatically. ...
More specifically, since internationalization is such a time-dependent process, one might not afford to grow in incremental steps, or even at a high pace in a single direction, which has been the focus of extant research. However, a paradox does arise when firms attempt to grow rapidly by ...
arationalising production and writing off invstment in particular locations 特别是合理化生产和注销invstment地点 [translate] a却会自动飞向他 Can fly automatically actually to him [translate] a最快的递送时间 Quickest delivers the time [translate] aLaminate the Computer Center Cards and use a ...
The speed of an object does not depend on the direction in which it is travelling. The velocity of an object is the speed and direction in which it is moving. The car is travelling north with a velocity of 10 m/s. How is velocity different to speed? As the car goes round the ...
Changes in direction or speed of the main propulsion units shall be recorded, ()an Administration has determined that the size or characteristics of a particular ship make such recording impracticable. A.in addition to B.in addition that