飛機(jī)電網(wǎng)故障時(shí)，機(jī)載電氣盒必須在延遲時(shí)間內(nèi)切斷電網(wǎng)，保護(hù)機(jī)載設(shè)備。采用AT89S52設(shè)計(jì)的電氣盒測(cè)試儀能夠測(cè)試電氣盒保護(hù)功能，測(cè)量延遲時(shí)間。實(shí)際應(yīng)用結(jié)果表明，該測(cè)試儀具有測(cè)量準(zhǔn)確、可靠性高、成本低等優(yōu)點(diǎn)。
Abstract:
The helicopter-electrical-box must shut off the helicopter power，protect the equipments of the helicopter when the helicopter power is failed.The tester for the helicopter-electrical-box based on AT89S52is used for testing the protect-ing function and measuring the delay time.Application results show this tester has some advantages,such as accurate mea-surement,high dependability,economical cost etc.
This article is a very simple introduction writing a Windows Form application for the
Microsoft.NET framework using C#. The sample application demonstrates how to create and
layout controls on a simple form and the handling of mouse click events. The application
displays a form showing attributes of a file. This form is similar to the properties dialog box of a
file (Right click on a file and Click on Properties menu item). Since attributes of a file will be
shown, the sample will show how to use File IO operations in .NET framework.
abel Tool Sample
Requires: Visual Basic 6 and MapObjects 2.x
Data: redlands.shp (Redlands sample data set from MO 2.x)
Interactive Labeling Tool
If the check box is checked, then the mouse down location will search for the closest line, and label it with the street name. If the check box is not checked, then the mouse down will turn into a pan/zoom tool.
There is a slider bar to control the search tolerance in screen pixels for the labeling.
解決時(shí)鐘問(wèn)題，acm競(jìng)賽題
A weird clock marked from 0 to 59 has only a minute hand. It won t move until a special coin is thrown into its box. There are different kinds of coins as your options. However once you make your choice, you cannot use any other kind. There are infinite number of coins of each kind, each marked with a number d ( 0 <= 1000 ), meaning that this coin will make the minute hand move d times clockwise the current time. For example, if the current time is 45, and d = 2. Then the minute hand will move clockwise 90 minutes and will be pointing to 15.
Now you are given the initial time s ( 0 <= s <= 59 ) and the coin s type d. Write a program to find the minimum number of d-coins needed to turn the minute hand back to 0.
