Wireless access has cellular mobile phone system, digital cordless telephone system and point-to-point microwave system, and many other technical systems to choose from. So, in order to carry out the arduous task of our country Telecom universal service, operator chooses that kind of technical system to be suitable? In order to construct the wireless access network reasonably and efficiently, we need to objectively compare and analyze the operating environment of different technical systems.
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. Whether it will be widely used depends on the timing of equipment, terminals and related applications. Because of the large number of users in GSM and TDMA-136 system, the market potential of introducing edge in existing system is very great.The access technology based on wireless LAN1. Wireless local Area network (WLAN)In recent years, with the wide range of applications of LAN and the changing of modern communication mode, especially the development of mobile and portable communication, wire
the IOC container as a factory where the objects to be produced are defined in the configuration file, and then use the programming language's reflection programming to generate the corresponding object based on the class name given in the configuration file. In terms of implementation, the IOC generates code for objects that were previously written dead in the factory method, and is changed to be defined by the configuration file, which separates the factory from the object generation, which i
defined in the configuration file, and then the object is generated according to the class name given in the configuration file using the programming language's reflection programming. From the perspective of implementation, the IOC is to create the code that was written dead in the factory method, and changed it to be defined by the configuration file, which is to separate the factory from the object generation, in order to improve flexibility and maintainability. 6. Some products of the IOC c
applications to make the next definition of this "context"; different contexts define different scopes for the concept of "current".prior to version 3.0, programs using Hibernate either adopted a self-written ThreadLocal-based context session, either using an auxiliary class such as Hibernateutil, or using a third-party framework (such as Spring or Pico), which provides a context-sensitive session based on agent (proxy) or interceptor (interception).
Using Python3 to learn the API of Decision tree classifierRelated to feature extraction, data type retention, classification type extraction of new typesNeed to download data sets online, I downloaded them to the local,can download code and datasets to my git: https://github.com/linyi0604/MachineLearning1 ImportPandas as PD2 fromSklearn.cross_validationImportTrain_test_split3 fromSklearn.feature_extractionImportDictvectorizer4 fromSklearn.treeImportDecisiontreeclassifier5 fromSklearn.metrics
]- -); A } - - Free(TMP); the returnresult; -}Note that the POW function is a simple function written by itself rather than a function in MATH.H: 1 int Pow ( int d,int m) { 2 int result=1 ; 3 while (m> 0 4 result *= D; 5 --M; 6 7 return result; 8 } (3) Main algorithm:1 voidRabin_karp_matcher (Char*t,Char*p,intDintq) {2 ints,i,c;3 intm=strlen (p);4 intn=strlen (t);5 6 intPx=horner (P,d,strlen (p))%Q;7 int*tx=cal (t,m,d);8 9C=n-m +1;Ten One
Topic Portal1 /*2 LCS nude title: length minus the maximum same length is the number of inserts to be inserted3 DP Array Two-dimensional open 5000 will be super memory, here is used to scroll the array,4 because in the calculation of LCS, I changes only 1, so you can scroll by 2 to take the remainder:)5 */6#include 7#include 8#include 9#include Ten#include string> One using namespacestd; A - Const intMAXN = 5e3 +Ten; - Const intINF =0x3f3f3f3f; the intdp[2][MAXN]; - strings, SS; - - intLCS (in
Topic Links:https://cn.vjudge.net/problem/ZOJ-3279Main topic:There are 1 to n that level each level has a[i] only antsTwo types of operationsp a B change the number of ants at level A to BQ A queries which level a ant is in.Problem Solving Ideas:Dynamic maintenance of prefixes and, in a tree-like array, two points to find the first antUse printf, or you'll time out.1#include 2 using namespacestd;3 Const intMAXN = 1e5 +Ten;4 intTREE[MAXN], N, A[MAXN];5 intLowbit (intx)6 {7 return(X (-x));8 }
-6600 series processors, then the motherboard that matches the main recommendation is the B150 chipset motherboard.
RX470 the appropriate motherboard recommendations
1, MSI b150m mortar
MSI b150m Mortar is a motherboard based on the Intel B150 chipset design, with the M-ATX version, equipped with 6-phase power supply, two PCI-E 3.0 slots Support CrossFireX mixed-fire technology, up to two-channel 64G DDR4 2133MHz memory, Although it is a small boar
reason is that your motherboard design or BIOS has some bugs, because the ATX power supply, plug plus, the power has already started to work, and so you press the key, the motherboard because it is not able to provide the necessary power on the instant voltage, resulting in the first boot failure.
Reference to the solution: first to change the power of a large high-quality power, if it does not work, you can refresh the BIOS, no longer work, you can
Interface specification for PS/2 and USB
KB: Keyboard, common Interface specification for PS/2 and USB
Speaker: Horn
Printer: Printer
Scanner: Scanner
UPS: Continuous power system
IDE: Refers to IDE Interface Specification Integrated Device Electronics,ide Interface Device
SCSI: Refers to SCSI Interface Specification Small Computer system INTERFACE,SCSI interface Device
GHz: (CPU operation speed up to) Gega Hertz per second
FSB: Refers to the "front-side bus (Front Side buses)" frequen
"Fault phenomenon" a computer recently connected to the power on its own boot, sometimes inexplicably on the boot.
"Failure analysis and processing" causes this kind of failure may have the following: (1) First check whether the computer in the BIOS setup will be timed to boot function set to "Enabled", so that the computer in the set time automatically boot. (2) Again check whether the computer in the BIOS setup item to open the function of the caller's automatic power-on, when a plug in AC po
Configuration list.
Introduction of installed Accessories:
CPU aspect, AMD a6-5400k processor uses 32 nanometer craft process, socket type is socket FM2, suitable with all support socket FM2 interface motherboard, this CPU original dual core design, processor default frequency up to 3.6GHz, in turbo The core technology supports up to 3.8GHz max. GPU part for hd7540d, with 192 stream processors, GPU frequency 760MHz, two cache only 1MB.
AMD a6-5400k Processor
Mother
: AOC e941s (LED screen) 699
Button Mouse Pack: Leibo N1800 wired Mouse Set 70
Total: 2805 CNY
Computer Hardware Reviews:
On the processor side, Intel Pentium G620 processor is an entry-level dual-core processor with a high naming rate. G620 's main frequency up to 2.8Ghz, with 3MB L3 cache, more importantly, it is based on Sandybridge architecture, the performance of the same. Because the heat of the G620 is very low, the normal fan can finish the cooling well.
Intel Pentium G6
Component Interconnect
35.ATX: Refers to the current power supply specifications, also refers to the motherboard standard size size
36.BIOS: Hardware (input/Output) basic Setup program basic Input Output System
37.CMOS: Memory chip for storing BIOS basic setup data complementary Metal-oxide Semiconductor
38.POST: power-on detection power on Self test
39.OS: Operating System operating system
40.Windows: Window operating system, graphics interfac
most of the current power supply fan design for the blow or side blowing mode, if it is on the blow, the fan is fixed in the power supply cover, when the demolition, it is important to note that the fan also has a power cord connected with the internal PCB, demolition, should pay attention to open the lid carefully, need to disconnect the power cord, and then open the upper cover, As shown in the following figure.
Note that the fan power connector is disconnected
Note: Power suppl
If the computer appears to power on the automatic boot situation, there are two possibilities, one is set up the caller power function;
1, call power-on function and power management, may be in the BIOS setup items in the call to open the function of automatic power-on, when a plug in AC power, the computer will automatically start.
If you do not want to use this feature, turn it off.
The solution is as follows:
When you turn on the computer, press Del to enter bios--"Powermanagementsetup" o
frequency, but also considered medium. Core quantity is dual core, three level cache is 3MB. For more information on the processor, see: Intel Pentium G2020 processor details.
Motherboard, Pan is IH61MC-Q3 motherboard for the Micro ATX Small board design, based on the B3 Stepper H61 single chip design, perfect support for the latest second-generation core I processor. The motherboard uses the 2+2 phase power supply, matches the entire solid state ca
processing method.
1. If you hear the "Toot toot ..." continuous short sound, indicating that there is a slight short-circuit phenomenon in the machine, please shut down immediately, open the chassis, one by one unplug the interface card and other equipment in the mainframe power cord, signal cable power test, such as the removal of certain equipment when the system back to normal, it is just removed equipment damage or improper installation caused by short circuit fault. such as only to keep
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