AJAX is a set of web development techniques used to create interactive web applications. It allows web pages to be updated asynchronously by exchanging small amounts of data with the server behind the scenes, without interfering with the display and behavior of the existing page. This is done through JavaScript and the XMLHttpRequest object, allowing new information to be added without reloading the entire page. Common uses of AJAX include updating parts of a web page without reloading, autocomplete functions, and real-time notifications.
A three hour tutorial I gave at PHP Quebec on the challenges, theory, and concepts behind making asynchronous JavaScript calls for Web 2.0 Applications using PHP
A three hour tutorial I gave at PHP Quebec on the challenges, theory, and concepts behind making asynchronous JavaScript calls for Web 2.0 Applications using PHP
"AJAX = Asynchronous JavaScript and XML.
AJAX is a technique for creating fast and dynamic web pages.
AJAX allows web pages to be updated asynchronously by exchanging small amounts of data with the server behind the scenes. This means that it is possible to update parts of a web page, without reloading the whole page.
Classic web pages, (which do not use AJAX) must reload the entire page if the content should change.
"AJAX = Asynchronous JavaScript and XML.
AJAX is a technique for creating fast and dynamic web pages.
AJAX allows web pages to be updated asynchronously by exchanging small amounts of data with the server behind the scenes. This means that it is possible to update parts of a web page, without reloading the whole page.
Classic web pages, (which do not use AJAX) must reload the entire page if the content should change.
Introduction to AJAX, Reverse Ajax for beginners.
A presentation on Ajax, Reverse Ajax suitable for college level presentations and seminars.Contains 30 slides with example
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Vaccine management system project report documentation..pdfKamal Acharya
The Division of Vaccine and Immunization is facing increasing difficulty monitoring vaccines and other commodities distribution once they have been distributed from the national stores. With the introduction of new vaccines, more challenges have been anticipated with this additions posing serious threat to the already over strained vaccine supply chain system in Kenya.
Democratizing Fuzzing at Scale by Abhishek Aryaabh.arya
Presented at NUS: Fuzzing and Software Security Summer School 2024
This keynote talks about the democratization of fuzzing at scale, highlighting the collaboration between open source communities, academia, and industry to advance the field of fuzzing. It delves into the history of fuzzing, the development of scalable fuzzing platforms, and the empowerment of community-driven research. The talk will further discuss recent advancements leveraging AI/ML and offer insights into the future evolution of the fuzzing landscape.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
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Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
2. INTRODUCTION
Asynchronous JavaScript and XML or Ajax for short is new web development technique
used for the development of most interactive website. Ajax helps you in making your web
application more interactive by retrieving small amount of data from web server and then
showing it on your application. You can do all these things without refreshing your page.
Usually in all the web applications, the user enters the data into the form and then clicks on
the submit button to submit the request to the server. Server processes the request and
returns the view in new page ( by reloading the whole page). This process is inefficient, time
consuming, and a little frustrating for you user if the only the small amount of data exchange
is required. For example in an user registration form, this can be frustrating thing for the
user, as whole page is reloaded only to check the availability of the user name. Ajax will
help in making your application more interactive. With the help of Ajax you can tune your
application to check the availability of the user name without refreshing the whole page.
3. UNDERSTANDING AJAX
• Ajax is not a single technology, but it is a combination of many technologies. These
technologies are supported by modern web browsers. Following are techniques used in the Ajax
applications.
Javascript :
•
JavaScript is used to make a request to the web server. Once the response is returned by the
webserver, more JavaScript can be used to update the current page. DHTML and CSS is used to
show the output to the user. JavaScript is used very heavily to provide teh dynamic behavior to the
application.
Asynchronous call to the server :
•
Most of the Ajax application used the XMLHttpRequest object to send the request to the web
server. These calls are Asynchronous and there is no need to wait for the response to come back.
User can do the normal work without any problem.
4. UNDERSTANDING AJAX (CONTD...)
XML :
•
XML may be used to receive the data returned from the web server. JavaScript can be used to
process the XML data returned from the web server easily.
•
5. HOW AJAX WORKS?
• When user first visits the page, the Ajax engine is initialized and loaded. From that point of
time user interacts with Ajax engine to interact with the web server. The Ajax engine operates
asynchronously while sending the request to the server and receiving the response from server.
Ajax life cycle within the web browser can be divided into following stages:
User Visit to the page :
•
User visits the URL by typing URL in browser or clicking a link from some other page.
Initialization of Ajax engine :
•
When the page is initially loaded, the Ajax engine is also initialized. The Ajax engine can also
be set to continuously refresh the page content without refreshing the whole page.
Event Processing Loop:
•
Browser event may instruct the Ajax engine to send request to server and receive the
response data
6. BENEFITS OF AJAX
• Ajax is new very promising technology, which has become extremely popular these days.
Here are the benefits of using Ajax:
Ajax can be used for creating rich, web-based applications that look and works like a desktop
application.
Ajax is easy to learn. Ajax is based on JavaScript and existing technologies like XML, CSS,
DHTML. etc. So, its very easy to learn Ajax.
Ajax can be used to develop web applications that can update the page data continuously
without refreshing the whole page.
7. AJAX AS WEB DEVELOPMENT
• AJAX is a web application development technique which encompasses different
technologies which make it more interesting and fun. It has the following technologies :
JavaScript
XML
CSS
W3C DOM
XMLHttpRequest
•
Since it embraces so many technologies that's why it is neither easy nor tough. In AJAX, "A"
stands for "Asynchronous" that means sending data from the browser and response send back
from the server are not sequential. When user make requests then the server can do its own work
or it may fulfill other requests. Similarly when server is busy in responding user may make further
requests that means no request or response is synchronous or depending on each other.
8. DATA EXCHANGE IN AJAX
XML :
•
In AJAX, data is exchanged with the help of XML files, there are many alternate techniques
are also available like CSV, JSON etc. Because of the simplicity of XML, it is becoming the new
standard of exchanging data between server and browser. XML is very easy to reformat, reuse.
DOM :
•
The DOM (Document Object Model) is the object oriented representation of XML & HTML
documents, and provides an API for changing the content, structure, and style. The DOM
represents HTML & XML documents as object hierarchy, which is easy to parse by XML tools.
CSS :
•
CSS (Cascading Style Sheet) is used in web site for designing purpose, we can use CSS in
almost all aspects of the way the web pages look, size, color, width, length etc. of text box, input
area,..etc. that means every attribute of every user interface. In AJAX it is very useful to use CSS,
you can implement CSS as color changing on validation checking in a registration form and other.
9. DATA EXCHANGE IN AJAX (CONTD...)
XML HTTP REQUEST :
•
Unlike other usual web pages, with AJAX, JavaScript communicates with server using
JavaScript's XMLHttpRequest object. With the help of XMLHttpRequest a web page can send
request and get a response from the server without refreshing the page. This object is supported
by all the leading web browsers.
JAVASCRIPT :
•
We can say that JavaScript is the pivot point of AJAX . IT performs the following role in AJAX :
•
(1) Handling XMLHttpRequest made HTTP requests .
•
(2) Using DOM, XSLT or any other method, parsing the response come from the server.
(3) Presenting the response from server to user interface.
10. XML HTTP REQUEST OBJECT
As the use of XML and web services is increasing day by day, it is good to connect an HTML
page with XML, with the help of that we can get interim updates so easily without reloading the
page. It is possible due to the XMLHttpRequest object, which is responsible for retrieving and
submitting the XML data directly from the client side. It relies on Document Object Model (DOM) to
convert the retrieved XML data into HTML.
XMLHttpRequest object facilitates the web developer a lot because with the help of this object
you can update the page with new data without reloading the page, communicate with server in
the background, request and receive data from the web server.
11. XML HTTP REQUEST OBJECT (CONTD...)
•CREATING XML HTTP REQUEST OBJECT :
• We can create an instance of the XMLHttpRequest in most of the modern popular
browsers, and in the old versions of the browsers we need to create an object of ActiveXObject.
• var xmlobj=new XMLHttpRequest ();
• var activeobj=new ActiveXObject("Microsoft.XMLHTTP");
• We need to create an XMLHttpRequest, after that we will use few important functions like:
• (1) onreadystatechange property :
• After submitting the request to the server, we need to store the response from the
server. onreadystatechange property stores the response from the function which process the
server.
•
12. XML HTTP REQUEST OBJECT (CONTD...)
•(2) Readystate property :
• eadystate property holds the state of the server response, every time readystate property
change , onreadystatechange function executes. Possible values and their meaning are given
below:
• STATE REQUEST
0 Not initialized
1 Has been set up
2 Has been sent
3 In process
4 Is complete
13. XML HTTP REQUEST OBJECT (CONTD...)
•(3) Response text property:
•
• The data sent back from the server is stored and retrieved later with the help of
responseText property.
14. AJAX EXAMPLE
• In the following example we will see how to display server IP address dynamically with
the help of AJAX, HTML, & PHP.
•SimpleAjax.html
•<html>
•<body>
•<script type="text/javascript" >
•function ajaxfunction()
•{
•var xmlhttp;
•if(window.XMLHttpRequest)
•{
•xmlhttp=new XMLHttpRequest();