Đồ án tốt nghiệp chuyên ngành ôtô: Đề tài về công nghệ Hybrid (ĐHBKHN)iZibook
Để tải bản đầy đủ của tài liệu này, vui lòng truy cập tại địa chỉ: http://m.izibook.info/do-an-luan-van/ky-thuat/do-an-de-tai-ve-cong-nghe-hybrid-tren-oto-pdf.html
The document describes the four stages of the combustion cycle in a 4-stroke engine: intake, compression, power, and exhaust. During intake, the piston moves down and draws in the fuel-air mixture through the open intake valve. In compression, the valve closes and the piston compresses the mixture. At top-dead-center in power, the spark plug ignites the compressed mixture, pushing the piston down. During exhaust, the exhaust valve opens and the piston pushes out the exhaust gases.
Internal Combustion Engines - Construction and Working (All you need to know,...Mihir Pai
The document discusses various components and systems of internal combustion engines, including:
- The crankshaft, connecting rod, camshaft, spark plug, drivetrain, turbochargers, carburetors, fuel injection systems, engine lubrication systems, rotary engines, two-stroke engines, and experimental five-stroke and six-stroke engines. It provides brief descriptions of how each component or system functions within an engine.
Đồ án tốt nghiệp chuyên ngành ôtô: Đề tài về công nghệ Hybrid (ĐHBKHN)iZibook
Để tải bản đầy đủ của tài liệu này, vui lòng truy cập tại địa chỉ: http://m.izibook.info/do-an-luan-van/ky-thuat/do-an-de-tai-ve-cong-nghe-hybrid-tren-oto-pdf.html
The document describes the four stages of the combustion cycle in a 4-stroke engine: intake, compression, power, and exhaust. During intake, the piston moves down and draws in the fuel-air mixture through the open intake valve. In compression, the valve closes and the piston compresses the mixture. At top-dead-center in power, the spark plug ignites the compressed mixture, pushing the piston down. During exhaust, the exhaust valve opens and the piston pushes out the exhaust gases.
Internal Combustion Engines - Construction and Working (All you need to know,...Mihir Pai
The document discusses various components and systems of internal combustion engines, including:
- The crankshaft, connecting rod, camshaft, spark plug, drivetrain, turbochargers, carburetors, fuel injection systems, engine lubrication systems, rotary engines, two-stroke engines, and experimental five-stroke and six-stroke engines. It provides brief descriptions of how each component or system functions within an engine.
how startups can benefit from launch communityhazzaz
The document describes Launch Community, a nonprofit organization in Vietnam that aims to foster entrepreneurship through knowledge sharing and collaboration. It provides resources for startups like access to investors, advisors, and expertise. Launch Community hosts events like cafe meetups and pitching sessions to connect entrepreneurs and offers an active Facebook group with over 600 members to share knowledge. The organization's goals are to support both new and existing startups and help bring a second wave of tech startups to Vietnam.
This document provides an overview of how to start a business using the Magento e-commerce platform. It discusses Magento's architecture and flexibility, features like multi-store management, catalog and product browsing, marketing tools, and reporting. It also addresses questions about building extensions, the most important aspects, and selling extensions on marketplaces like Magento Connect and Magestore.com.
The document is a presentation about HTML5 and CSS3 by Dang Minh Tuan. It discusses what HTML5 and CSS3 are, who develops them, who supports them, who uses them, and how to learn them. It encourages starting projects with HTML5 and CSS3 now despite any fears or doubts, as they allow for more innovative designs and an improved user experience compared to older technologies. The presentation provides examples and references to support its points.
This document discusses JavaScript unit testing and frameworks. It provides an agenda that covers JavaScript, unit testing, and JavaScript unit testing frameworks. It defines JavaScript and unit testing, and provides examples of unit tests using QUnit. It discusses test-driven development and the benefits of unit testing like isolating parts of a program and facilitating change. Finally, it lists some JavaScript unit testing frameworks and leaves time for coding examples and questions.
This document discusses how to build a PHP extension in C. It provides an overview of PHP extensions and the extension development process. It then walks through an example "Hello World" extension, showing how to generate the extension skeleton, add functions in the header and source files, build and install the extension, and test the new functionality. Advanced topics like parameters, return values, memory allocation and preventing memory leaks are also briefly mentioned.
This document discusses various techniques for optimizing website performance, including: reducing page generation time through caching and opcode caching; minimizing round-trip times by leveraging browser caching, combining files, and parallel downloads; decreasing response sizes by gzipping files, image optimization, and using a CDN; and improving rendering through CSS/JS placement and preloading. Tools mentioned for analyzing performance include XDebug, WinCacheGrind, Page Speed, and YSlow.
This document discusses speeding up the ZingMe-NTVV2 application by writing a PHP extension module. It introduces NTVV2, which has high traffic volumes. Writing a PHP extension can make complicated business functions run faster and use less memory compared to pure PHP. The document explains what a PHP extension is, its lifecycle, and how to set up the build environment. It recommends using SWIG, an interface compiler, to more easily connect C/C++ code to PHP. SWIG allows defining types, wrapping classes/functions, and exposing functions to PHP. The document provides steps for using SWIG, including defining the module interface, generating code, compiling it into a PHP extension, and caching data in the new
This document discusses best practices for building scalable PHP websites, as demonstrated by ZingMe's architecture. It covers scaling by adding servers horizontally (scaling out) rather than vertically on single servers. Key aspects covered include load balancing with HAProxy, managing user sessions in Memcached to allow scaling, and deploying code changes automatically across servers using SVN and scripts. ZingMe's implementation supports over 1.7 million daily active users on over 300 servers through these scalability techniques.
The document discusses MySQL optimization and indexing principles. It provides examples of queries with and without indexes and uses the EXPLAIN statement to analyze query performance. Indexing types for MyISAM and InnoDB storage engines are explained. Considerations for when indexes can and cannot be used are also covered. The document is presented by someone who works with MySQL and offers their contact information for questions.
The document discusses the entity-attribute-value (EAV) data model used in Magento. In an EAV model, attributes are stored in a separate table from the core entity/object table. Each row contains the entity ID, attribute name, and attribute value. This provides flexibility but can result in inefficient queries. Solutions like using a pivot table to normalize the data are discussed. The EAV model works best for scenarios where flexibility and scalability are prioritized over query performance.
CSS has evolved significantly since its inception. Originally, CSS provided basic styling capabilities that separated web page structure from presentation. Over time, CSS gained more powerful features through specifications like CSS3, and new techniques and frameworks like OOCSS emerged to make CSS more flexible and powerful. Looking ahead, CSS will likely continue advancing with new specifications and tools, though some question if it will be replaced by another technology in the future. CSS has come a long way and will likely remain a core technology for styling web pages.
how startups can benefit from launch communityhazzaz
The document describes Launch Community, a nonprofit organization in Vietnam that aims to foster entrepreneurship through knowledge sharing and collaboration. It provides resources for startups like access to investors, advisors, and expertise. Launch Community hosts events like cafe meetups and pitching sessions to connect entrepreneurs and offers an active Facebook group with over 600 members to share knowledge. The organization's goals are to support both new and existing startups and help bring a second wave of tech startups to Vietnam.
This document provides an overview of how to start a business using the Magento e-commerce platform. It discusses Magento's architecture and flexibility, features like multi-store management, catalog and product browsing, marketing tools, and reporting. It also addresses questions about building extensions, the most important aspects, and selling extensions on marketplaces like Magento Connect and Magestore.com.
The document is a presentation about HTML5 and CSS3 by Dang Minh Tuan. It discusses what HTML5 and CSS3 are, who develops them, who supports them, who uses them, and how to learn them. It encourages starting projects with HTML5 and CSS3 now despite any fears or doubts, as they allow for more innovative designs and an improved user experience compared to older technologies. The presentation provides examples and references to support its points.
This document discusses JavaScript unit testing and frameworks. It provides an agenda that covers JavaScript, unit testing, and JavaScript unit testing frameworks. It defines JavaScript and unit testing, and provides examples of unit tests using QUnit. It discusses test-driven development and the benefits of unit testing like isolating parts of a program and facilitating change. Finally, it lists some JavaScript unit testing frameworks and leaves time for coding examples and questions.
This document discusses how to build a PHP extension in C. It provides an overview of PHP extensions and the extension development process. It then walks through an example "Hello World" extension, showing how to generate the extension skeleton, add functions in the header and source files, build and install the extension, and test the new functionality. Advanced topics like parameters, return values, memory allocation and preventing memory leaks are also briefly mentioned.
This document discusses various techniques for optimizing website performance, including: reducing page generation time through caching and opcode caching; minimizing round-trip times by leveraging browser caching, combining files, and parallel downloads; decreasing response sizes by gzipping files, image optimization, and using a CDN; and improving rendering through CSS/JS placement and preloading. Tools mentioned for analyzing performance include XDebug, WinCacheGrind, Page Speed, and YSlow.
This document discusses speeding up the ZingMe-NTVV2 application by writing a PHP extension module. It introduces NTVV2, which has high traffic volumes. Writing a PHP extension can make complicated business functions run faster and use less memory compared to pure PHP. The document explains what a PHP extension is, its lifecycle, and how to set up the build environment. It recommends using SWIG, an interface compiler, to more easily connect C/C++ code to PHP. SWIG allows defining types, wrapping classes/functions, and exposing functions to PHP. The document provides steps for using SWIG, including defining the module interface, generating code, compiling it into a PHP extension, and caching data in the new
This document discusses best practices for building scalable PHP websites, as demonstrated by ZingMe's architecture. It covers scaling by adding servers horizontally (scaling out) rather than vertically on single servers. Key aspects covered include load balancing with HAProxy, managing user sessions in Memcached to allow scaling, and deploying code changes automatically across servers using SVN and scripts. ZingMe's implementation supports over 1.7 million daily active users on over 300 servers through these scalability techniques.
The document discusses MySQL optimization and indexing principles. It provides examples of queries with and without indexes and uses the EXPLAIN statement to analyze query performance. Indexing types for MyISAM and InnoDB storage engines are explained. Considerations for when indexes can and cannot be used are also covered. The document is presented by someone who works with MySQL and offers their contact information for questions.
The document discusses the entity-attribute-value (EAV) data model used in Magento. In an EAV model, attributes are stored in a separate table from the core entity/object table. Each row contains the entity ID, attribute name, and attribute value. This provides flexibility but can result in inefficient queries. Solutions like using a pivot table to normalize the data are discussed. The EAV model works best for scenarios where flexibility and scalability are prioritized over query performance.
CSS has evolved significantly since its inception. Originally, CSS provided basic styling capabilities that separated web page structure from presentation. Over time, CSS gained more powerful features through specifications like CSS3, and new techniques and frameworks like OOCSS emerged to make CSS more flexible and powerful. Looking ahead, CSS will likely continue advancing with new specifications and tools, though some question if it will be replaced by another technology in the future. CSS has come a long way and will likely remain a core technology for styling web pages.
7. WHAT IS TEXT PARSER?
TEXT
PARSER
Domain: vnexpress.net Images: Yes (no)
Subject: Giá xăng dầu giảm xuống còn 11 ngàn ImageURL:
http://www.vnexpress.net/Files/Subject/3B/A0/96/61/a3.j
Time: 10:30, 12-12-2008 pg
Descripton: Một quan chức thuộc Bộ Tài chính SourceURL:http://www.vnexpress.net/GL/Kinh-
cho biết về khả năng tăng giá xăng dầu... doanh/2008/12/3BA09661/
Other...
8. DATA RETURN
BY TEXT WHAT IS DATA HANDLE?
PARSER
DATA
HANDLE
Tags: giá xăng dầu, giá xăng, giảm giá, xăng dầu, kinh tế, năng lượng...
Time: 10:30, 12-12-2008
Images: Yes (no)
ImageURL: http://www.vnexpress.net/Files/Subject/3B/A0/96/61/a3.jpg
SourceURL:http://www.vnexpress.net/GL/Kinh-doanh/2008/12/3BA09661/
Etc...
16. HOW WE DO?
Keyword
Keyword
Analysis
Ranking
Keyword
Keyword Tags RESULTS
Filter Parser
17. KEYWORD FILTER
Normal Remove special character
Mai Phương Thúy
Mai Phuong Thuy
Wrong Bad word
MaiPhuong Thuy
.^Mai-Phuong*%Thuy
Site regular
Type classification
dantri: mai phuong
thuy,
{today}mai phuong
thuy
mai phuong thuy, mai
phương thúy
18. mai phuong thuy, mai
phương thúy
TAGS PARSER
Mai Phương Thúy, Mai Ranking
Phương, Phương Thúy Keyword
SEARCHING PROCESS