The typical Ldo power supply itself consumes (vin-vout) *iout, so the larger the two, the greater the power consumption and the lower the efficiency.LDO, switching power supply DC's advantages and disadvantages (2008-11-06-22:40:23) Reprint Tags: power supply talk low dropout linear regulator, so the name thought, for linear regulator, can only be used in buck applications. That is, the output voltage must be less than the input voltage. Advantages: G
As a surveying and mapping major undergraduate, I have studied autocad,cass,matlab,cosa and so on. Here is my view of some software.CAD Pros and Cons:1. Planar drawing: You can create basic graphic objects such as lines, circles, ellipses, torus polygons (positive polygons), splines, and so on in a variety of ways.2. Drawing AIDS: Provides drawing aids such as orthogonal, object snapping, polar tracking, capture tracking, and more.3. Edit Graphics: CAD has powerful editing functions that can be
Compares the methods and advantages of JS array merging, and the advantages and disadvantages of js array MergingOriginal article: Combining JS ArraysOriginal Article Date:Translation Date:Translated by: TieThis article is a basic JavaScript skill. We will learn a variety of common methods to combine/merge two JS arrays, and compare the advantages and disadvantages of various methods.Let's take a look at th
This article describes the advantages and disadvantages of three Linux Server monitoring technologies, including SNMP proxy (client), SSH, and private proxy (client) installation. The powerful functions and beautiful interfaces of linux make many enterprises use linux as servers. The following describes the advantages and disadvantages of the three Linux Server monitoring technologies. Linux Server Monitori
I will give you a detailed explanation of the advantages and disadvantages of the Canon 500D camera.Analysis and sharing:First of all, Canon EOS 500D is an extremely powerful entry-level SLR, regardless of its high-pixel sensor and advanced DIGIC 4 processor, as you can see from the camera's high-definition video shooting capabilities, this makes the EOS 500D fall under the storm with many competitors of the same level.Although the Canon EOS 500D
Label: five advantages and disadvantages of Oracle RACdifferent cluster products have their own characteristics, RAC features include the following points: dual-machine parallel. RAC is a parallel mode, not a traditional master and standby mode. That is, all members of the RAC cluster can receive client requests at the same time. High availability. RAC is a high-availability solution for Oracle database products that ensures that a cluster product wit
1. Decision Tree applicable conditions: The data of different class boundary is non-linear, and by continuously dividing the feature space into a matrix to simulate. There is a certain correlation between features. The number of feature values should be similar, because the information gain is biased towards more numerical characteristics. Advantages: 1. Intuitive decision-making rules; 2. Nonlinear characteristics can be handled; 3. The interaction between variables is considered.
, etc.) the behavior of the system. These features make JSON an ideal data exchange language.JSON is based on JavaScript programming Language, Standard ECMA-262 a subset of 3rd Edition-december 1999.
2. XML and JSON pros and cons
Advantages and disadvantages of 2.1 xml
The benefits of XMLA. Format uniformity and compliance with standards;B. Easy to interact with other systems remotely, and data sharing is more convenient.
This year to do video site more and more, especially some new podcast network, disrupted the traditional video site model, the Emergence of podcast network, so that netizens have more free video viewing options, but also for the video search this business lay the foundation. I will now say that I have contacted some of the podcast network, free video network, video search engine advantages, disadvantages, and user experience, but I opinion, we only do
Introduction: DB2 9 databaseIt is an important development in the development history of DB2 databases, but DB2 9 databases are not perfect, so there are both good and bad aspects, the following describes the advantages and disadvantages of the DB2 9 database.
Compared with other database management systems, DB2 9 has made significant innovations. In fact, DB2 9's support for XML is not only reflected in XML data, but also can be used to solve some pr
The advantages and disadvantages of Oracle Database indexes are mdash, mdash, and learning notes. The main advantage is convenient query and improved system performance. By creating a unique index, you can ensure that the database
The advantages and disadvantages of Oracle Database indexes are mdash, mdash, and learning notes. The main advantage is convenient query and improved system performance. By creat
ASP. NET common data binding control advantages and disadvantages Analysis SummaryThe purpose of this article is to make an overview of ASP. NET data-bound control, mainly analyze the advantages and disadvantages of various data-bound controls, so as to choose the appropriate control for data binding in the actual development to improve the development efficiency.Because most of these data-bound controls ar
What are the advantages and disadvantages of single and multi-entry PHPframework? What are the advantages and disadvantages of the single portal and multi-portal of PHP framework?
Reply content:
What are the advantages and disadvantages of the single portal and multi-portal of PHP framework?
The advantage of a single portal is that it is easy to control.
"Reprint" The advantages and disadvantages of DELEGATE,NOTIFICATION,KVO three modes in iOS for communicationOriginal address:http://blog.csdn.net/yangxt/article/details/8176636In developing iOS, there are three modes for communicating between controllers:1. Entrust delegation;2. Notification Centre Notification Center;3. Key value Observing,kvoSo why do we need these patterns and when to use it and when not to do it.1.delegateBasic Features:A controll
When you encounter a problem analysis record at work, you should directly throw the problem. Existing layer-3 business A, B, and C raw data layer-A stores the basic data object map =>... the size is no less than 1000. A data object (A1) is randomly thrown at the underlying data layer B. After capturing the object A1 thrown at the data layer A, it is processed by a series of DB queries and in-depth algorithm computing, generate the result B1 corresponding to A1. Layer B throws data to layer C of
Entity Framework advantages and disadvantages and usage summary Entity Framework is an ORM framework provided by Microsoft. It aims to facilitate the rapid development of data layers in small applications.
More than downloads on nuget indicate that. NET developers prefer to use EF. However, EF also has many disadvantages while providing convenience. I think EF should not be applied in the following scenario
Hadoop support for compressed files and the advantages and disadvantages of algorithmsHadoop is transparent to the compressed format, our MapReduce task is transparent, and Hadoop automatically extracts the compressed files for us without our care.If we compress the file with the appropriate compression format extension (such as LZO,GZ,BZIP2, etc.), Hadoop will select the decoder according to the extension to extract.
Compression forma
For example, when each page ends, the database connection is closed. On the next page, you need to re-open the database and re-connect to obtain data. In this way, what are the major disadvantages and minor advantages of websites with persistent connection. For example, when each page ends, the database connection is closed. On the next page, you need to re-open the database and re-connect to obtain data. In this way, what are the major
Advantages and disadvantages of ubuntu-general Linux technology-Linux technology and application information. For more information, see the following. I installed Ubuntu again and found that I had made great progress two years ago. Let's talk about the advantages and disadvantages I think.
Advantages:
It inherits the excellent blood of debian and has a powerful package management mechanism.
It is eas
[Discussion] The advantages and disadvantages of using stored procedures in php + mysql have never been used in projects.
I have read some open-source systems and have never used stored procedures.
SQL statement execution
Is it necessary to use stored procedures in php projects?
Using Stored procedures should increase the speed and reduce the pressure on web servers
But it also increases the load on database servers.
For more experienced students
Let'
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