Monday, May 12, 2008
Software Process Innovation
The relationship between software process innovation and innovative software products is a complex one. At the moment there is no particular evidence that innovative software processes necessarily result in innovative software products. Some forms of innovative software products may be best developed using traditional methods .
Tuesday, May 06, 2008
National Transportation Research Center (NRTC)
The National Transportation Research Center (NRTC) is an institution, located in Knoxville, Tennessee, that conducts research and development aimed at increasing the efficiency and safety of transportation systems and reducing their energy utilization and effects on the environment.
Monday, April 28, 2008
Islamic Golden Age
The Islamic Golden Age, also sometimes known as the Islamic Renaissance, is traditionally dated from the 8th century to the 13th century, though some have extended it to the 15th or 16th centuries. During this period, engineers, scholars and traders in the Islamic world contributed to the arts, agriculture, economics, industry, law, literature, navigation, philosophy, sciences, and technology, both by preserving and building upon earlier traditions and by adding inventions and innovations of their own. Howard R. Turner writes: "Muslim artists and scientists, princes and laborers together created a unique culture that has directly and indirectly influenced societies on every continent."
Monday, April 21, 2008
Columbian Exchange
The Columbian Exchange has been one of the most significant events in the history of world ecology, agriculture, and culture. The term is used to describe the enormous widespread exchange of plants, animals, foods, human populations (including slaves), communicable diseases, and ideas between the Eastern and Western hemispheres that occurred after 1492. Many new and different goods were exchanged between the two hemispheres of the Earth, and it began a new revolution in the Americas and in Europe. In 1492, Christopher Columbus' first voyage launched an era of large-scale contact between the Old and the New World that resulted in this ecological revolution: hence the name "Columbian" Exchange.
Monday, April 14, 2008
Entity-relationship model
An Entity-relationship model is an abstract conceptual representation of structured data. Entity-relationship modeling is a relational schema database modeling method, used in software engineering to produce a type of conceptual data model (or semantic data model) of a system, often a relational database, and its requirements in a top-down fashion. Diagrams created using this process are called entity-relationship diagrams, or ER diagrams for short. Originally proposed in 1976 by Dr. Pin-Shan (Peter) Chen many variants of the process have subsequently been devised.
Monday, April 07, 2008
HSQLDB
HSQLDB is available under a BSD license.
It has a JDBC driver and supports a rich subset of SQL-92, SQL-99, and SQL:2003 standards. It offers a fast, small (less than 100k in one version, around 600k in the standard version) database engine which offers both in-memory and disk-based tables. Embedded and server modes are available.
Friday, April 04, 2008
Relational model
Monday, March 24, 2008
File Transfer Protocol (FTP)
FTP is a commonly used protocol for exchanging files over any TCP/IP based network to manipulate files on another computer on that network regardless of which operating systems are involved (if the computers permit FTP access). There are many existing FTP client and server programs. FTP servers can be set up anywhere between game servers, voice servers, internet hosts, and other physical servers.
Monday, March 17, 2008
Systems design
Object-oriented analysis and design methods are becoming the most widely used methods for computer system design. The UML has become the standard language used in Object-oriented analysis and design. It is widely used for modeling software systems and is increasingly used for designing non-software systems and organizations.
Sunday, March 09, 2008
HDTV blur
The following factors are generally the primary or secondary causes of HDTV blur; in some cases more than one of these factors may be in play at the studio or receiver end of the transmission chain.
• Pixel response time on LCD displays (blur in the color response of the active pixel)
• Slower camera Shutter speeds common in hollywood production films (blur in the HDV content of the film)
• Blur from eye tracking fast moving objects on sample-and-hold LCD, Plasma, or Microdisplay.
• Resolution resampling (blur due to resizing image to fit the native resolution of the HDTV)
• Blur due to 3:2 pulldown and/or motion-speed irregularities in framerate conversions from film to video
• Computer generated motion blur introduced by video games
Tuesday, March 04, 2008
Pharmacognosy
Wednesday, February 27, 2008
Organic light-emitting diode
Sunday, February 24, 2008
Neptune
Discovered on September 23, 1846, Neptune was the first planet found by mathematical prediction quite than regular observation. Unexpected changes in the orbit of Uranus led astronomers to realize the gravitational perturbation of an unknown planet. Neptune was found within a degree of the predict position. The moon Triton was found shortly thereafter, but none of the planet's other 12 moons were discovered preceding to the twentieth century. Neptune has been visit by only one spacecraft, Voyager 2, which flew by the planet on August 25, 1989.
Friday, February 22, 2008
Mosasaurs
These predators evolved from semi-aquatic squamates known as the aigialosaurs, close relatives of modern-day monitor lizards, in the Early Cretaceous Period. During the last 20 million years of the Cretaceous Period (Turonian-Maastrichtian), with the extinction of the ichthyosaurs and pliosaurs, mosasaurs became the dominant marine predators.
Sunday, February 17, 2008
Synthetic biology
Saturday, February 09, 2008
Cybernetics
The terms "systems theory" and "cybernetics" have been widely used as synonyms. Some authors use the term cybernetic systems to denote a proper subset of the class of general systems, namely those systems that include feedback loops. However Gordon Pask's differences of eternal interacting actor loops (that produce finite products) makes general systems a proper subset of cybernetics. According to Jackson (2000), Bertalanffy promoted an embryonic form of general system theory (GST) as early as the 1920s and 1930s but it was not until the early 1950s it became more widely known in scientific circles.
Sunday, January 27, 2008
Trotskyism
Trotsky advocated proletarian revolution as set out in his theory of "permanent revolution", and he argued that in countries where the bourgeois-democratic revolution had not triumphed already (in other words, in places that had not yet implemented a capitalist democracy, such as Russia before 1917), it was necessary that the proletariat make it permanent by carrying out the tasks of the social revolution (the "socialist" or "communist" revolution) at the same time, in an uninterrupted process.
Thursday, January 17, 2008
Neuropsychology
It is scientific in its approach and shares an information processing view of the mind with cognitive psychology and cognitive science.