The Conditional GET
By storing previously retrieved objects, Web caching can reduce object-retrieval delays and diminish the amount of Web traffic sent over the Internet. Web caches can reside in a client or…
User-Server Interaction: Authentication and Cookies
We mentioned above that an HTTP server is stateless. This simplifies server design, and has permitted engineers to develop very high-performing Web servers. However, it is often desirable for a Web site…
How to Prevent Crankcase Explosion on a Ship?
Crankcase explosion is one of the most dangerous reasons that can lead to massive accidents and fires on a ship. It is therefore imperative to prevent all the reasons that…
HTTP Message Format
The HTTP specifications 1.0 ( and 1.1 ) define the HTTP message formats. There are two types of HTTP messages, request messages and response messages, both of which are discussed below. HTTP Request Message Below we provide a…
Starting Air Line Explosion on Ships
What are the causes of starting airline explosion on ships? 1. The main cause of starting airline explosion is the leaking starting air valve or jamming at open position of the valve.…
Non-Persistent and Persistent Connections
HTTP can use both non-persistent connections and persistent connections. Non-persistent connections is the default mode for HTTP/1.0. Conversely, persistent connections is the default mode for HTTP/1.1. Non-Persistent Connections Let us walk through the…
Scavenge Fire on Ships
A scavenge fire can occur when the accumulated oil in the scavenge spaces are ignited by blow past from the combustion space. The oil within the scavenge space is present due to…
The World Wide Web: HTTP
In the 1980s the Internet was used by researchers, academics and university students to login to remote hosts, to transfer files from local hosts to remote hosts and vice versa,…
Asynchronous Transfer Mode (ATM) Networks
Thus far, our focus has been on the Internet and its protocols. But many other existing packet-switching technologies can also provide end-to-end networking solutions. Among these alternatives to the Internet,…
What is Turbocharger Surging?
Turbocharger surging may be defined as a high pitch vibration of audible level coming from the blower end or compressor end of the turbocharger. It is frequently experienced in low-speed…
