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    What are the layers of OLEDoS?

    The structure of OLEDoS:
    First, a metal with a high work function is deposited on a monocrystalline silicon integrated circuit chip as the anode of the OLED.
    Secondly, the organic functional layers, including the hole injection layer, the hole transport layer, the light emitting layer, the electron injection layer and the transparent cathode, are evaporated, and they form an OLED sub-pixel with the metal anode. The organic material used in the light-emitting layer is generally a DPV-like blue-green host doped with a red dye to produce white light. Except for the initial anode metal layer, all other layers are thermally evaporated, which is compatible with conventional OLED device processes. A complete silicon wafer can carry out various processes at the same time, including the packaging process.
    Finally, the silicon wafer is separated into individual microdisplays.

    What are the ways of side channel attacks?

    • Side-channel analysis: It is a non-intrusive attack launched by an attacker when measuring delay, power consumption, or fluctuations in transmitted signal and radiation information.
    • Fault Attack: It is an attack launched when an intruder tries to make an error during the operation of a device to illegally extract information through normal output channels or side channels.
    • Physical Tampering: An intruder can attempt to disassemble a device to recover data without destroying its stored data.

    What can be in COS?

    • The comparison processing of the transport password when the chip is transported to the user (referring to the issuer).
    • Personalized processing (including creating files) when issuing cards.
    • Complete processing of a transaction.
      1. Initialization processing after inserting the card and sending a reset response to the interface device.
      2. Anti-plug treatment (anti-accidental power failure).
      3. The interface device and the tC card are processed in a command-response manner.

    What is the impact of the feedback on the amplifier?

    • It is related to the way of adding feedback:
      1. Current series negative feedback: reduce voltage gain, reduce distortion, increase input and output resistance…
      2. Voltage series negative feedback: reduce voltage gain, reduce distortion, reduce input and output Resistance…
      3. Current parallel negative feedback: reduce voltage gain, reduce distortion, reduce input resistance, increase output resistance…
      4. Voltage parallel negative feedback: reduce voltage gain, reduce distortion, reduce input and output resistance …

    What are the development tools for supporting 2802x-based applications?

    • CodeComposerStudi0 integrated development environment IDE: c/c compiler; code generation tools; assembler/linker; one-cycle accurate simulator
    • Application algorithm: sample application code development and evaluation tool; JTAG-based emulator: XDS510, XDS560 emulator, XDSl00
    • Flash Programming Tool
    • Power supply
    • Documentation and cables

    What are the CPU processor cores of the ARM9E series?

    The CPU processor cores of the ARM9E series mainly include ARM926EJ-S, ARM946E-S, ARM966E-S, ARM968E-S, ARM996HS, etc.

    What parts does the main drag unit consist of?

    The main driving unit is composed of AC motor MA driving DC generator G1 and exciter G2. The tool post control includes rapid movement of the tool post and automatic tool feed (Mz, My, Mc) control. The crossbeam control includes the lifting, loosening and clamping (MH, MJ) control of the crossbeam.

    What is an antenna?

    Antenna is a device that transmits or receives radio frequency signals in the form of electromagnetic waves. That is, a device that can convert current signals into electromagnetic waves, or convert received electromagnetic waves into current signals.
    In the RFID system, the communication between the reader and the electronic tag is done wirelessly. Therefore, both the reader-writer and the electronic tag must have their own antennas to receive and send electromagnetic waves to complete data transmission.
    There are two types of antennas included in an RFID system. One is the antenna on the RFID tag, which is generally integrated with the RFID tag. The other type is the reader-writer antenna, which can be built into the reader-writer or connected to the RF port of the reader-writer through a coaxial cable.
    Antenna is an essential component of any radio system, its function is to radiate or receive radio waves. There are many examples of using antennas in daily life. For example, walkie-talkies use antennas to complete the transmission of electrical signals in space. Mobile phones, radios, etc. must also receive signals through antennas.
    Antennas play an important role in wireless communication systems, and the invention of antennas has also made the electromagnetic spectrum a key resource that can be reused by humans.
    The antenna is a kind of metal wire, metal surface or other materials to form a certain shape. A device installed in a certain space to transmit or receive radio frequency signals in the form of electromagnetic waves.

    What is the sensor detection method for the Toyota Ml匕 car air conditioning system?

    ① Detection method of the coolant temperature sensor Put the coolant temperature sensor and thermometer into a beaker filled with water, and heat it with an electric heater.
    Put the multimeter in the electric barrier, connect the two test leads to the two terminals of the coolant temperature sensor, and check the reading of the meter. The relation of its resistance value changing with the change of temperature is as follows: When the temperature is 80℃, the resistance value should be l. 55kD: When the temperature is 85°C, the resistance value should be l. 351Q: When the temperature is 90°C, the resistance value should be l. 19kQ: When the temperature is 95°C, the resistance value should be l. 05kD: If the measured value is inconsistent with the above data, it means that the coolant temperature sensor is faulty and should be replaced with a new one.
    ② Detection method of evaporator temperature sensor Turn off the ignition switch, unplug the evaporator temperature sensor harness connector, and remove the evaporator temperature sensor from the evaporator.
    Place the evaporator temperature sensor and thermometer in a beaker filled with ice water, and place the multimeter on the electric block. Connect the two test leads to both ends of the evaporator temperature sensor, and check the meter reading. The relationship between the resistance value and the change of temperature is as follows: when the temperature is -1°C, the resistance value is 4.7-5.4 kΩ; when the temperature is 0°C, the resistance value is 4.5-5.2 kΩ ;When the temperature is 1°C, the resistance value is 4.3~4.9 kΩ; when the temperature is 2°C, the resistance value is 4~4.7 kΩ; when the temperature is 3°C, the resistance value is 3.8 ~4.4k. O. If the measured data is inconsistent with the above value, it means that the evaporator temperature sensor is defective and should be replaced with a new one.

    What are the components of a wireless sensor network system architecture?

    Usually includes sensor nodes, sink nodes and management nodes.


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