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The customers' feedback is a key to connect the product and customer. Hence, it is necessary to set a customer online evaluation feedback process to improve the management systematically.
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Process in a company can be formal and informal. Formal process should contain well-developed steps and more documented. This example is a process that company applies to modify formally.
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The main reason to use flowchart to show the relations among the electrical maintenance. Through the flowchart, the process will be systemed, and it's easy for people to understand.
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Here is an example of tesla's mission and vision when it's doing brand. Only a company has a vision and mission, the brand will be more concrete and more like a human.
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The reasons why people keep loyal to certain brand is that they contains brand vision or mission to reflect an image of brand itself.
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A bipolar junction transistor (BJT) has three regions, where the emitter and collector are respectively made of the same type of semiconductor (npn is n, pnp is p). If you consider the base and emitter terminals, or the collector terminal, you get a P-N junction diode. But if we hold the collector and emitter terminals, we will encounter two diodes connected back to back.
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Now, you don’t need to worry about the dark night when the power is interrupted. This is a circuit diagram based on a white LED. When the mains power fails, the emergency light will automatically turn on.
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For fault diagnosis of any logic circuit, you need a probe clock activity that can test the logic level or existence. The circuit shown here can be used to test CMOS and TTL logic circuits, as well as the presence of clock activity from a few hertz to more than 10 MHz.
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This is a circuit diagram of automatic closing renewal. When your rechargeable battery is exhausted, the smart charger will automatically close the charging.
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When the water temperature is lower than the set lower limit, this circuit will turn on the heater and automatically turn off the water heater when the temperature rises to the upper limit.
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White LEDs are replacing traditional incandescent lamps and fluorescent lamps because of their higher power. And when power efficiency and low working voltage, white LED can be used for emergency lights and vehicle steering indication. Here is a circuit used for this purpose.
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"Ding Dong Bell" is a popular nursery rhyme, and Shakespeare used it in many of his plays. Nowadays, jingle bells are commonly used in mobile phones and doorbells. This is a simple clang generator circuit around a dedicated analog signal.
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Here is a simple oscillator circuit that uses a crystal to generate a frequency of 50 Hz. 50Hz alternating pulse with 50% duty cycle can be used in inverter circuit. It includes a 14-stage counter and oscillator (CD4060), dual J-K flip-flops (CD4027), operable amplifier (LM324) and other components.
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Using this circuit, check whether a given transistor is good or bad before soldering. This circuit can easily identify npn and pnp types. The tester will indicate the position of the pin and the working condition of the transistor through the LED.
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Multiple phones are reminded in different rooms. The low-cost 2-tone ringtone IC LS1240 is usually used as a telephone circuit. As long as the telephone line is extended to the place where additional ringtones are to be installed, multiple rooms can share one number.
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In earlier carbureted vehicles, the ignition was mainly by the contact circuit breaker (CB) ignition system. This circuit can convert the car's ignition system from a CB point and condenser type to an electronic transistor switch.
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Do you often encounter the need to add a phone bell in another room to remind you of incoming calls? The low-cost 2-tone ringtone IC LS1240 is usually used as a telephone circuit, as long as the telephone line is extended to the place where additional ringtones are to be installed.
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We humans can only hear sounds up to 20kHz. Two special ultrasonic transducers should be used: one transducer emits 40kHz sound, the other transducer receives 40kHz sound and converts it into electrical changes of the same frequency.
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The simple and practical circuit here is an AC voltage indicator. The AC power supply indicating voltage is composed of three different LEDs. The AC voltage indicator circuit can be made and assembled for beginners.
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This unique anti-theft alarm uses invisible and inaudible ultrasonic waves to detect movement of objects. Ultrasonic transducers can work at the highest efficiency under the frequency of 40kHz. Therefore, this circuit uses an ultrasonic transmitter and receiver operating at 40 kHz to control the buzzer or relay.
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Human resources take great responsibility in each company, they are highly crucial for recruiting staff, helping boss to manage certain things.
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