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Airline Reservations System A small airline has just purchased a computer for its new automated res

Airline Reservations System A small airline has just purchased a computer for its new automated reservation system. You have been asked to develop the new system called ARSystem. You are to write an application to assign seats on each flight of the airline s only plane (capacity: 24 seats.) Your application should display the following alternatives: Please type 1 for FirstClass and Please type 2 for Economy. If the user types 1, your application should assign a seat in the first-class section (seats 1-8). If the user types 2, your application should assign a seat in the economy section (seats 9-24). Your application should then display a boarding Pass indicating the person s seat number and whether it is in the first-class or economy

標簽： Reservations automated purchased computer

上傳時間： 2017-04-14

上傳用戶：lizhizheng88
You will recieve a Standard Grade for completion of this Extra credit will be given for a more crea

You will recieve a Standard Grade for completion of this Extra credit will be given for a more creative approach to the problem, either minimum amount of code, an additional display of seating beyond just the boarding Pass, etc

標簽： will completion for Standard

上傳時間： 2014-01-02

上傳用戶：dongqiangqiang
The BuildBot is a system to automate the compile/test cycle required by most software projects. CVS

The BuildBot is a system to automate the compile/test cycle required by most software projects. CVS commits trigger new builds, run on a variety of client machines. Build status (Pass/fail/etc) are displayed on a web page or through other protocols.

標簽： BuildBot automate required projects

上傳時間： 2017-05-06

上傳用戶：懶龍1988
Image enhancement in frequency domain using Fourier center frequency, Gaussian lowPass filter, Low p

Image enhancement in frequency domain using Fourier center frequency, Gaussian lowPass filter, Low Pass filter, high Pass filter. Image restoration using medean filter, weiner filter with noise generator such as Gaussian noise, Salt and Pepper noise

標簽： frequency enhancement Gaussian Fourier

上傳時間： 2017-08-24

上傳用戶：xinzhch
數字電子技術基礎

數字電子技術基礎知識，適合初學者，高手Pass

標簽： 數字電子技術基礎

上傳時間： 2015-03-04

上傳用戶：xiefy
音頻放大器設計

This design uses Common-Emitter Amplifier (Class A) with 2N3904 Bipolar Junction Transistor. Use “Voltage Divider Biasing” to reduce the effects of varying β (= ic / ib) (by holding the Base voltage constant) Base Voltage (Vb) = Vcc * [R2 / (R1 + R2)] Use Coupling Capacitors to separate the AC signals from the DC biasing voltage (which only Pass AC signals and block any DC component). Use ByPass Capacitor to maintain the Q-point stability. To determine the value of each component, first set Q-point close to the center position of the load line. (RL is the resistance of the speaker.)

標簽： 音頻放大器設計電路圖英文

上傳時間： 2020-11-27

上傳用戶：
Multisim官方示例Multisim仿真例程基礎電路范例135例合集

Multisim官方示例Multisim仿真例程基礎電路范例135例合集:Chapter 1 - RLC CircuitsChapter 2 - DiodesChapter 3 - TransistorsChapter 4 - AmplifiersChapter 5 - OpampsChapter 6 - FiltersChapter 7 - Miscellaneous CircuitsFundamental Circuits.pdf004 Parallel DC Circuits.ms10005 Series-Parrallel DC Circuit.ms10006 Current Analysis.ms10007 Millmans Theorem 1.ms10008 Millmans Theorem 2.ms10009 Kirchhoff's Current Law.ms10010 Thevenin's Theorem.ms10011 Superposition Principle.ms10012 Nortons Theorem and Source Conversion.ms10013 AC Voltage Measurement.ms10014 Frequency Response of the Series RL Network.ms10015 RL High and Low Pass Filter.ms10016 Frequency Response of the Series RC Network.ms10017 RC High and Low Pass Filter.ms10019 Center-Tapped Full-Wave Rectifier.ms10020 Bridge Rectifier.ms10021 Capacitor-Input Rectifier Filter.ms10022 Diode Clipper (Limiter).ms10023 Diode Clipper.ms10024 Diode Clamper (DC Restorer).ms10025 Diode Voltage Doubler.ms10026 Zener Diode and Voltage Regulation 1.ms10027 Zener Diode and Voltage Regulation 2.ms10028 Zener Diode and Voltage Regulation 3.ms10105 TTL Inverter.ms10107 TTL Gate.ms10109 OR Gate Circuit.ms10111 Over-Damp Circuit.ms10113 Critical-Damp Circuit.ms10115 Series RLC Circuit 1.ms10117 Clapp Oscillator.ms10119 Differential Amplifier 1.ms10121 Differential Amplifier in Common Mode.ms10123 LC Oscillator with Unity Gain Buffer.ms10125 Notch Filter.ms10127 PNP Differential Pair.ms10129 Crossover Network.ms10131 Second-Order High-Pass Chebyshev Filter.ms10133 Third-Order High-Pass Chebyshev Filter.ms10135 Fifth-Order High-Pass Filter.ms10

標簽： multisim

上傳時間： 2021-10-27

上傳用戶：trh505
PCB設計十大誤區-繞不完的等長（一）

1.關于等長第一次聽到“繞等長工程師”這個稱號的時候，我和我的小伙伴們都驚呆了。每次在研討會提起這個名詞，很多人也都是會心一笑。不知道從什么時候起，繞等長成了一種時尚，也成了PCB設計工程師心中揮不去的痛。需要等長設計的總線越來越多，等長的規則越來越嚴格。5mil已經不能滿足大家的目標了，精益求精的工程師們開始挑戰1mil，0.5mil……還聽過100%等長，沒有誤差的要求。為什么我們這么喜歡等長？打開PCB設計文件，如果沒有看到精心設計的等長線，大家心中第一反應應該是鄙視，居然連等長都沒做。也有過在賽格買主板或者顯卡的經驗，拿起板子先看看電容的設計，然后再看看繞線，如果沒有繞線或者繞線設計不美觀，直接就Pass換另一個牌子。或許在我們的心中，等長做的好，是優秀PCB設計的一個體現。做過一個非正規的統計（不過一博每年上萬款PCB設計，我們的采樣基本上也可以算做大數據了），稍微復雜一點的高速板子，繞等長要占據總設計時間的20%~30%。如果等長規則更嚴格，或者流程控制不好，做了等長之后再反復修改，這個時間還會更多。

標簽： pcb

上傳時間： 2021-11-11

上傳用戶：
高通(Qualcomm)藍牙芯片QCC5151_硬件設計詳細指導書（官方內部培訓手冊）

高通(Qualcomm)藍牙芯片QCC5151_硬件設計詳細指導書（官方內部培訓手冊）共52頁其內容是針對硬件設計、部分重要元器件選擇(ESD，Filter）及走線注意事項的詳細說明。2 Power management 2.1 SMPS 2.1.1 Components specification 2.1.2 Input power supply selection 2.1.3 Minimize SMPS EMI emissions 2.1.4 Internal LDOs and digital core decoupling 2.1.5 Powering external components 2.2 Charger 2.2.1 Charger connections.2.2.2 General charger operation2.2.3 Temperature measurement during charging 2.3 SYS_CTRL 3 Bluetooth radio3.1 RF PSU component choice 3.2 RF band-Pass filter3.3 Layout (天線走線的注意事項)4 Audio4.1 Audio byPass capacitors 4.2 Earphone speaker output4.3 Line/Mic input 4.4 Headphone output optimizition5 LED pads 5.1 LED driver 5.2 Digital/Button input 5.3 Analog input5.4 Disabled 6 Reset pin (Reset#)7 QSPIinterface 8 USB interfaces 8.1 USB device port8.1.1 USB connections8.1.2 Layout notes8.1.3 USB charger detection

標簽： qualcomm 藍牙芯片 qcc5151

上傳時間： 2022-01-24

上傳用戶：XuVshu
直流電動機測速裝置

本系統采用電動機電樞供電回路串接采樣電阻的方式來實現對小型直流有刷電動機的轉速測量。該系統主要由二階低通濾波電路,小信號放大電路、單片機測量顯示電路、開關穩壓電源電路等組成。同時自制電機測速裝置,用高頻磁環作為載體,用線圈繞制磁環,利用電磁感應原理檢測電機運行時的漏磁,將變化的磁場信號轉化為磁環上的感應電流。用信號處理單元電路將微弱電信號轉化為脈沖信號,送由單片機檢測,從而達到準確測量電機的速度的要求。In this system, the sampling resistance of armature power supply circuit is connected in series to measure the speed of small DC brush motor. The system is mainly composed of second-order low-Pass filter circuit, small signal amplifier circuit, single-chip measurement and display circuit, switching regulated power supply circuit and so on. At the same time, the self-made motor speed measuring device uses high frequency magnetic ring as the carrier, coil winding magnetic ring, and electromagnetic induction principle to detect the leakage of magnetic field during the operation of the motor, which converts the changed magnetic field signal into the induced current on the magnetic ring. The weak electric signal is transformed into pulse signal by signal processing unit circuit, which is sent to single chip computer for detection, so as to meet the requirement of accurate measurement of motor speed.

標簽： 直流電動機

上傳時間： 2022-03-26

上傳用戶：