This document provides an overview of Python collections including strings, bytes, lists, tuples, dictionaries, sets, and ranges. It discusses how to create, access, modify, iterate through, and perform common operations on each collection type. For each collection, it provides examples of basic usage and built-in methods. The document is intended as a reference for working with the main collection data types in Python.
The document discusses several advanced Python concepts including regular expressions, lambda functions, threading, and more. It covers matching, searching, and finding patterns in strings using regular expressions. Lambda functions are described as anonymous functions. Threading allows running functions concurrently using threads to improve performance. Map and filter functions are also overviewed by applying functions to lists.
The waterfall model is a sequential (non-iterative) design process, used in software development processes, in which progress is seen as flowing steadily downwards (like a waterfall) through the phases of conception, initiation, analysis, design, construction, testing, production/implementation and maintenance.
This document describes the sliding window protocol. It discusses key concepts like both the sender and receiver maintaining buffers to hold packets, acknowledgements being sent for every received packet, and the sender being able to send a window of packets before receiving an acknowledgement. It then explains the sender side process of numbering packets and maintaining a sending window. The receiver side maintains a window size of 1 and acknowledges by sending the next expected sequence number. A one bit sliding window protocol acts like stop and wait. Merits include multiple packets being sent without waiting for acknowledgements while demerits include potential bandwidth waste in some situations.
- Aging is characterized by a declining ability to respond to stress, increasing homeostatic imbalance, and higher risk of disease. It is a degenerative process with no positive features.
- The main factors that act in the aging process include mitochondrial dysfunction, DNA damage and repair, cell cycle regulation, telomere shortening, and changes in transcription and translation.
- Theories of aging include the molecular gene theory, cellular theories involving free radicals and apoptosis, and evolutionary theories such as antagonistic pleiotropy and mutation accumulation. Apoptosis is programmed cell death while necrosis is unregulated cell death from external factors like toxins.
Telco Applications are category of applications that are integrated directly with APP CORE, a secure environment within the mobile telecommunication Operator’s Core Network, which provides services to the subscriber that only the telecommunication Operator can provide.
This document describes a multi-agent wedding planner system called Groom Assist. The system uses intelligent software agents to coordinate wedding tasks like booking venues and suppliers. It allows users to submit their wedding requirements and the agents will automatically handle booking decorations, venues, and photography based on the user's budget and preferences. Diagrams show the system architecture and interactions between agents that represent venues, decorations, photography and the customer. The agents store supplier details and facilitate booking the appropriate options for the customer.
E commerce application using asp.net mvc4Manusha Dilan
This document discusses e-commerce applications built using ASP.NET MVC. It begins by defining electronic commerce and the commercial history of the internet. It then explains the ASP.NET MVC framework and the MVC pattern of model, view, controller. Examples are given of popular ASP.NET websites like CodePlex, StackOverflow, and Bing Shopping. Shopping cart software is described as the interface between a company's website and its infrastructure. Finally, several ASP.NET MVC based shopping cart platforms are outlined like nopCommerce, Kentico, Vevocart, and AbleCommerce.
This document provides an overview of Python collections including strings, bytes, lists, tuples, dictionaries, sets, and ranges. It discusses how to create, access, modify, iterate through, and perform common operations on each collection type. For each collection, it provides examples of basic usage and built-in methods. The document is intended as a reference for working with the main collection data types in Python.
The document discusses several advanced Python concepts including regular expressions, lambda functions, threading, and more. It covers matching, searching, and finding patterns in strings using regular expressions. Lambda functions are described as anonymous functions. Threading allows running functions concurrently using threads to improve performance. Map and filter functions are also overviewed by applying functions to lists.
The waterfall model is a sequential (non-iterative) design process, used in software development processes, in which progress is seen as flowing steadily downwards (like a waterfall) through the phases of conception, initiation, analysis, design, construction, testing, production/implementation and maintenance.
This document describes the sliding window protocol. It discusses key concepts like both the sender and receiver maintaining buffers to hold packets, acknowledgements being sent for every received packet, and the sender being able to send a window of packets before receiving an acknowledgement. It then explains the sender side process of numbering packets and maintaining a sending window. The receiver side maintains a window size of 1 and acknowledges by sending the next expected sequence number. A one bit sliding window protocol acts like stop and wait. Merits include multiple packets being sent without waiting for acknowledgements while demerits include potential bandwidth waste in some situations.
- Aging is characterized by a declining ability to respond to stress, increasing homeostatic imbalance, and higher risk of disease. It is a degenerative process with no positive features.
- The main factors that act in the aging process include mitochondrial dysfunction, DNA damage and repair, cell cycle regulation, telomere shortening, and changes in transcription and translation.
- Theories of aging include the molecular gene theory, cellular theories involving free radicals and apoptosis, and evolutionary theories such as antagonistic pleiotropy and mutation accumulation. Apoptosis is programmed cell death while necrosis is unregulated cell death from external factors like toxins.
Telco Applications are category of applications that are integrated directly with APP CORE, a secure environment within the mobile telecommunication Operator’s Core Network, which provides services to the subscriber that only the telecommunication Operator can provide.
This document describes a multi-agent wedding planner system called Groom Assist. The system uses intelligent software agents to coordinate wedding tasks like booking venues and suppliers. It allows users to submit their wedding requirements and the agents will automatically handle booking decorations, venues, and photography based on the user's budget and preferences. Diagrams show the system architecture and interactions between agents that represent venues, decorations, photography and the customer. The agents store supplier details and facilitate booking the appropriate options for the customer.
E commerce application using asp.net mvc4Manusha Dilan
This document discusses e-commerce applications built using ASP.NET MVC. It begins by defining electronic commerce and the commercial history of the internet. It then explains the ASP.NET MVC framework and the MVC pattern of model, view, controller. Examples are given of popular ASP.NET websites like CodePlex, StackOverflow, and Bing Shopping. Shopping cart software is described as the interface between a company's website and its infrastructure. Finally, several ASP.NET MVC based shopping cart platforms are outlined like nopCommerce, Kentico, Vevocart, and AbleCommerce.
The document categorizes different e-commerce business models according to the business sector (B2C, B2B, C2C) and type of e-commerce technology. It discusses several common B2C business models: portal (search plus content/services funded by ads, subscriptions, fees), e-tailer (online retailer funded by sales), content provider (digital content funded by subscriptions, downloads, ads), transaction broker (processing online transactions for a fee), market creator (bringing buyers and sellers together like eBay funded by fees), service provider (online services like Google funded by services, subscriptions, ads), and community provider (online social networks like Facebook funded by ads, subscriptions, fees, transactions).
The selective repeat protocol allows the receiver to accept and buffer frames following a damaged or lost one. Both the sender and receiver maintain a window of outstanding and acceptable sequence numbers. The receiver has a buffer for each sequence number within its fixed window. Whenever a frame arrives within the receiver's window, it is accepted and stored without regard to expected sequence. This protocol has fewer retransmissions than go-back-n but is more complex, as each frame must be acknowledged individually and the receiver may receive frames out of order.
The cellular concept was developed to solve the problem of spectral congestion and increase user capacity without major technological changes. It involves replacing single, high power transmitters with many low power transmitters covering small areas. Neighboring cells are assigned different channel groups to minimize interference, and the same channels are reused at different locations. When designing cellular systems, providing good coverage and services in high density areas requires considering factors like geographical separation and shadowing effects that allow frequency reuse.
This document contains code examples demonstrating basic Java concepts like classes, objects, methods, constructors, static variables, and more. The examples show how to define Box classes with width, length and height attributes to calculate and print the volume. Later examples demonstrate method overloading, the use of this keyword, call by value vs reference, and default values of attributes. Constructors are used to initialize object attribute values.
Designing for maximum usability – the goal of interaction design
Principles of usability
general understanding
Standards and guidelines
direction for design
Design patterns
capture and reuse design knowledge
The document discusses Ethernet networking technologies. It describes how Ethernet was developed in the 1970s and standardized. It outlines the evolution of Ethernet speeds from 2Mbps to 1Gbps. It discusses the physical layer standards for 10BaseT, 100BaseT, 1000BaseT, and 10GBase networking. It also provides an overview of Token Ring and FDDI technologies, including their operation, standards, and key features.
The document categorizes different e-commerce business models according to the business sector (B2C, B2B, C2C) and type of e-commerce technology. It discusses several common B2C business models: portal (search plus content/services funded by ads, subscriptions, fees), e-tailer (online retailer funded by sales), content provider (digital content funded by subscriptions, downloads, ads), transaction broker (processing online transactions for a fee), market creator (bringing buyers and sellers together like eBay funded by fees), service provider (online services like Google funded by services, subscriptions, ads), and community provider (online social networks like Facebook funded by ads, subscriptions, fees, transactions).
The selective repeat protocol allows the receiver to accept and buffer frames following a damaged or lost one. Both the sender and receiver maintain a window of outstanding and acceptable sequence numbers. The receiver has a buffer for each sequence number within its fixed window. Whenever a frame arrives within the receiver's window, it is accepted and stored without regard to expected sequence. This protocol has fewer retransmissions than go-back-n but is more complex, as each frame must be acknowledged individually and the receiver may receive frames out of order.
The cellular concept was developed to solve the problem of spectral congestion and increase user capacity without major technological changes. It involves replacing single, high power transmitters with many low power transmitters covering small areas. Neighboring cells are assigned different channel groups to minimize interference, and the same channels are reused at different locations. When designing cellular systems, providing good coverage and services in high density areas requires considering factors like geographical separation and shadowing effects that allow frequency reuse.
This document contains code examples demonstrating basic Java concepts like classes, objects, methods, constructors, static variables, and more. The examples show how to define Box classes with width, length and height attributes to calculate and print the volume. Later examples demonstrate method overloading, the use of this keyword, call by value vs reference, and default values of attributes. Constructors are used to initialize object attribute values.
Designing for maximum usability – the goal of interaction design
Principles of usability
general understanding
Standards and guidelines
direction for design
Design patterns
capture and reuse design knowledge
The document discusses Ethernet networking technologies. It describes how Ethernet was developed in the 1970s and standardized. It outlines the evolution of Ethernet speeds from 2Mbps to 1Gbps. It discusses the physical layer standards for 10BaseT, 100BaseT, 1000BaseT, and 10GBase networking. It also provides an overview of Token Ring and FDDI technologies, including their operation, standards, and key features.