-
XTHIDE is a GUI that allows the user to hide a text message in an image file.
The user will be asked for a key that will be used to both encode and decode the text into an image.
The key can be of length from 2 to 900 characters.
The encryption pattern for a key hell is not a subset of the encryption pattern for hello .
See help. Created with version 7.01.
標(biāo)簽：
user
message
XTHIDE
allows
上傳時(shí)間：
2013-12-26
上傳用戶：erkuizhang
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Abstract: Stuxnet, a sophisticated virus that damaged Iran's nuclear capability, should be an eye openerfor the world. We can choose to learn something very narrow (how to combat the Stuxnet virus) or wecan choose to focus on the larger goal of thwarting the next type of creative cyber attack. Unfortunately,critical industrial infrastructure is not currently designed with security as a key goal, leaving open multipleavenues for an educated and funded attacker to create massive problems. This tutorial outlines somebasic concepts that engineers and product definers should consider to make sure their new projects stayahead of future threats.
標(biāo)簽：
智能電網(wǎng)
安全保護(hù)
上傳時(shí)間：
2013-11-17
上傳用戶：llwap
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Handheld electronic devices play a key role in our everydaylives. Because dependability is paramount, handhelds arecarefully engineered with lightweight power sources forreliable use under normal conditions. But no amount ofcareful engineering can prevent the mistreatment theywill undergo at the hands of humans. For example, whathappens when a factory worker drops a bar code scanner,causing the battery to pop out? Such events areelectronically unpredictable, and important data storedin volatile memory would be lost without some form ofsafety net—namely a short-term power holdup systemthat stores suffi cient energy to supply standby power untilthe battery can be replaced or the data can be stored inpermanent memory.
標(biāo)簽：
超級(jí)電容器
備用電源
手持設(shè)備
上傳時(shí)間：
2013-11-05
上傳用戶：coeus
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The revolution of automation on factory floors is a key driver for the seemingly insatiable demand for higher productivity， lower total cost of ownership，and high safety. As a result， industrial applications drive an insatiable demand of higher data bandwidth and higher system-level performance.
This white paper describes the trends and challenges seen by designers and how FPGAs enable solutions to meet their stringent design goals.
標(biāo)簽：
xilinx
FPGAs
工業(yè)
中的應(yīng)用
上傳時(shí)間：
2013-11-08
上傳用戶：yan2267246
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寫號(hào)步驟：
1、將手機(jī)連通CDMA Workshop 2.7，在security選項(xiàng)卡里的 spc中點(diǎn)擊讀取，將000000填入spc里的方框，點(diǎn)擊spc鈕選擇send， 于是顯示spc解鎖成功。
2、點(diǎn)擊“nam”選項(xiàng)卡，將min填入10位碼（就是imsi碼去掉46003剩下的），將mcc填入460，mnc填入03，填入imsi15位碼，banner填入你想填的字符（我填的中國電信），點(diǎn)擊寫入即可
3、這一步，就應(yīng)該寫入akey碼了（如果不知道AKEY，可以通過電信機(jī)房關(guān)閉鑒權(quán)，但是不推薦這樣做，有盜號(hào)風(fēng)險(xiǎn)），點(diǎn)擊“cave”選項(xiàng)卡，在A-Key后的方框 填入你的akey，點(diǎn)擊寫入即可。
4、重啟6950，能夠打電話了
針對(duì)白三角以及1X上網(wǎng)問題，請(qǐng)注意：
1、如果有白色三角漫游標(biāo)記，通過將PRL由003升級(jí)到008解決方法是 ：撥##778#，輸入SPC碼，即000000，點(diǎn)擊VIEW 中PRI后點(diǎn)EDIT，將拷貝到機(jī)子中的prl文件瀏覽選到，點(diǎn)擊OK升級(jí)
2、CDMA 1X無法上網(wǎng)的解決方法： 撥##778#，輸入SPC碼，即000000，點(diǎn)擊VIEW 中M.IP后將“Mobile IP Only ”改為“simly IP only”
SPC在內(nèi)存中的地址：018E:0190（只要輸入018E）
標(biāo)簽：
Workshop
CDMA
2.7
手機(jī)
上傳時(shí)間：
2013-12-29
上傳用戶：ainimao
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Collection of key-value pairs.
TDictionary represents a generic collection of key-value pairs.
This class provides a mapping from a collection of keys to a collection of values. When you create a TDictionary object, you can specify various combinations of initial capacity, equality operation, and initial content.
You can add a key that is associated with a corresponding value with the Add or AddOrSetValue methods. You can remove entries with Remove or Clear, which removes all key-value pairs. Adding or removing a key-value pair and looking up a key are efficient, close to O(1), because keys are hashed. A key must not be nil (though a value may be nil) and there must be an equality comparison operation for keys.
You can test for the presence or keys and values with the TryGetValue, ContainsKey and ContainsValue methods.
The Items property lists all Count dictionary entries. You can also set and get values by indexing the Items property. Setting the value this way overwrites any existing value.
The class TObjectDictionary inherits from TDictionary and provides an automatic mechanism for freeing objects removed from dictionary entries.
標(biāo)簽：
Delphi 泛型
上傳時(shí)間：
2015-07-01
上傳用戶：mirage
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An optical fiber amplifier is a key component for enabling efficient transmission of
wavelength-divisionmultiplexed(WDM)signalsoverlongdistances.Eventhough
many alternative technologies were available, erbium-doped fiber amplifiers won
theraceduringtheearly1990sandbecameastandardcomponentforlong-haulopti-
caltelecommunicationssystems.However,owingtotherecentsuccessinproducing
low-cost, high-power, semiconductor lasers operating near 1450 nm, the Raman
amplifiertechnologyhasalsogainedprominenceinthedeploymentofmodernlight-
wavesystems.Moreover,becauseofthepushforintegratedoptoelectroniccircuits,
semiconductor optical amplifiers, rare-earth-doped planar waveguide amplifiers,
and silicon optical amplifiers are also gaining much interest these days.
標(biāo)簽：
Propagation
Light
Media
Gain
in
上傳時(shí)間：
2020-05-27
上傳用戶：shancjb
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MIMO-OFDM is a key technology for next-generation cellular communications (3GPP-LTE,
Mobile WiMAX, IMT-Advanced) as well as wireless LAN (IEEE 802.11a, IEEE 802.11n),
wireless PAN (MB-OFDM), and broadcasting (DAB, DVB, DMB). This book provides a
comprehensive introduction to the basic theory and practice of wireless channel modeling,
OFDM, and MIMO, with MATLAB ? programs to simulate the underlying techniques on
MIMO-OFDMsystems.Thisbookisprimarilydesignedforengineersandresearcherswhoare
interested in learning various MIMO-OFDM techniques and applying them to wireless
communications.
標(biāo)簽：
Communications
MIMO-OFDM
Wireless
MATLAB
with
上傳時(shí)間：
2020-05-28
上傳用戶：shancjb
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Smartphones have become a key element in providing greater user access to the
mobile Internet. Many complex applications which used to be limited to PCs, have
been developed and operated on smartphones. These applications extend the
functionalities of smartphones, making them more convenient for users to be
connected. However, they also greatly increase the power consumption of
smartphones, making users frustrated with long delays in Web browsing.
標(biāo)簽：
Browsing
Mobile
Cloud
Using
Web
the
上傳時(shí)間：
2020-05-30
上傳用戶：shancjb
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This book is about multipoint cooperative communication, a key technology to
overcome the long-standing problem of limited transmission rate caused by inter-
point interference. However, the multipoint cooperative communication is not an
isolated technology. Instead, it covers a vast range of research areas such as the
multiple-input multiple-outputsystem, the relay network, channel state information
issues, inter-point radio resource management operations, coordinated or joint
transmissions, etc. We suppose that any attempt trying to thoroughly analyze the
multipoint cooperative communication technology might end up working on a
cyclopedia for modern communication systems and easily get lost in discussing all
kinds of cooperative communication schemes as well as the associated models and
their variations.
標(biāo)簽：
Communication
Multi-point
Cooperative
Systems
上傳時(shí)間：
2020-05-31
上傳用戶：shancjb
