In scientific terminology, was is a control, and what is a variable???
399946
Thats pretty basic.  The control in the experiment is the constant.  Something that has a predictable outcome.   The variable is the item that you are experimenting on.\nKind of like haveing a placebo in a drug test...
817535
It is variable.What judg if are slow learner?To be a phenomenon is the fast learner?Maybe just start to think seriously.
589227
Remote control cars have circuits inside which respond to the radio frequency signal sent out by the controller. It will control the motor speed and direction, and control the steering motor.  Batteries provide power for the control circuitry which delivers it to the motors in the car.\n\nThe controller is a radio frequency transmitter which sends varying signals to the car.  The signals depend on the position of the control sticks on the controller.
820049
Well the term quality control can be applied to any lab environment, its what you do to make sure that the experiment or equipment is running smoothly.  For an experiment or industrial process, its something that you do that you already know the answer for, so you can tell if your setup is running correctly.
1028026
When variables are passed to a procedure or function they can be IN, OUT or INOUT.  An IN variable is passed into the procedure or function and is used, but can not be changed.  An OUT variable is passed to the procedure but it can be changed and left in the changed state when the procedure ends. \n\nAn INOUT variable is passed to a procedure or function, and it can be used by the block, changed by the block, and left in a “changed” state when the block ends.  A function can only be passed an IN variable and must return a variable.  If this is confusing, don’t worry.  When we get to name blocks and provide some examples it will be much cleare
827987
No, it's an independant variable (in the sense that it's not a linear combination of other variables such as length, mass, or charge) and, since it's linearly independant, it can be used as a dimension (or one of the spanning vectors) in a vector space.\n\n\nDoug
964598
slope is the manipulated \n\n distance an object travels is the responding\n\nIMDR \n\nindependent - manipulated\n\ndependent - responding
450751
Process control is usually done by programming the various regulatory elements (pumps, valves...). Much of this is done with symbolic objects which then receive alpha-numeric data for their operation levels.\n\nA basic understanding of programming is necessary if you are to configure a process.\n\nMore familiar desktop programming is required mainly for producers of process or analytical equipment, or for creating your own analytical programs which deal with measured data. Most laboratories will rely on standard equipment and desktop software to process their raw data and manage their final data in an information system. The better information systems have programmable interfaces for special problems, which is where good programming knowledge gives a clear advantage.
920333
Basic process control concepts. (Process Control).(Brief Article)\n \n\nThe basic functions of statistical process control (SPC) include the use of statistical tools to characterize processes, determine their inherent variability, monitor whether or not the processes are in control, and ultimately optimize processes and their control. Successfully implementing SPC requires an understanding of several fundamental concepts: \n\n* Variability is inherent in manufacturing. We must analyze and try to minimize this variability. \n\n* Ceramic manufacturing is very complex, with many poorly understood process interactions. We must begin to better understand these interactions. \n\n* Effective ceramic process control requires personnel versed in both SPC and ceramic technology, a weakness for many manufacturing organizations. \n\n* Making measurements to characterize a process will add measurement variability on top of true process variability. \n\n\nhttp://www.qcinspect.com/video/spcbasic.htm\n\nhttp://www.xlp.com/basic-spc-video-training
230122
Are you sure there is a relationship between these variables?  \n\nCan you define pressure tendency? Do they make a pressure tendency gauge?
495540
Open-loop which is mentioned here, refers to a systems control concept, named feedback. If you don't provide a feedback to correct the input commands, the system is called open-loop. If feedback is applied, it is closed-loop. An example of open-loop is a hydraulic pump actuated by a dc/ac  motor, adjusting its flow rate by controlling applied voltage to motor. No feedback compensates the errors in flow, therefore ot is called open-loop.
846805
Typically a passing variable is a variable that is passed from one subroutine (or function) to another.\n\nFor example.\n\nsub ImaTest()\ndim a = 2\ndim b = 3\ndim result as integer\nresult = addme(a,b)\nend sub\n\nfunction addme(byval a, byval b) as integer\naddme = a + b\nend function\n\nThe above example passes two variables (a and b) to the function addme, which returns the result.  'a' and 'b' are both passed variables.\n\n- Rich\nhttp://www.IMAgolfer.com
928401
A variable is something that changes. In a science project, the independent variable is the thing you are changing. For example, if you are experimenting on the growth of plants with different types of liquids (like water, orange juice, whatever), the independent variable would be the liquid you feed the plant. The dependent variable in the same experiment would be the growth of each plant. The dependent variable is always something you can measure (temperature, height, mass, etc.)
1034087
Keep right on right on. Except controll is spelled CONTROL .\n\nOh yeah, you're  from the 60's right?
1135408
OH NOES THIS IS LIKE A MATH PROBLEM!!!! i can't handle any more variables :( sry.\n\n\nhahahaha.
857324
In a controlled experiment, you control the variables and thus, you affect the outcome. In an observational study, you don't touch anything and you don't affect the outcome.
495700
An example of a closed loop control is where something has to go to a certain position. The motor is turned on and it runs until a position sensor tells the controller that it has reached the required position. These are used in elevators. \nAn open loop control to do the same thing would not have the position sensor. It would run the motor long enough that it should have reach the required position. These are used typically with stepper motors where the controller says move n step and that should get it there. Typical use is for the print head in an ink jet printer.