" More recently there have been attempts to apply MVC architectures for web-based interfaces. In the design of web applications, MVC is also known as a "Model 2" architecture in Sun parlance . Complex web applications continue to be more difficult to design than traditional applications, and MVC is being pushed as a potential solution to these difficulties. Beware: many applications which claim to comply with this much misunderstood pattern in fact do not achieve the required separation of model and view. JavaServer Faces , Jakarta Struts and Webwork2 are currently the most popular web oriented MVC implementations. Struts works at a page level; JSF works at a component level . The WebObjects development/deployment environment is strongly based on MVC. Asian Car Hot Model Fusebox Mach-II Maypole Catalyst Tapestry ZNF Apache Cocoon Ruby on Rails General information Description in the Portland Pattern Repository Core J2EE Patterns - Front Controller Dicussion of JavaServer Pages Model 2 architecture MVC-Frameworks written in PHP () Holub, Allen: “Building user interfaces for object-oriented systems�, Java World, 1999. Gresh, John E. "

" *** - What is actually measured experimentally are the masses of baryons and hadrons and various cross section rates. Since quarks can't be isolated because of QCD confinement, the quantity here is supposed to be the mass of the quark at the renormalization scale of the QCD phase transition. In order to compute this quantity, physicists have to set up a lattice model and try out various masses for the quarks until the model comes up with a close fit with experimental data. Since the masses of the first generation quarks are significantly below the QCD scale, the uncertainties here are pretty large. In fact, current QCD lattice models seem to suggest a significantly lower mass of these quarks from that of this table. The fermions can be arranged in three generations, the first one consisting of the electron, the up and down quarks, and the electron neutrino. All ordinary matter is made from first generation particles; the higher generation particles decay quickly into the first generation ones and can only be generated for a short time in high-energy experiments. Indonesia Hot Model The reason for arranging them in generations is that the four fermions in each generation behave almost exactly like their counterparts in the other generations; the only difference is in their masses. For example, the electron and the muon both have half-integer spin and unit electric charge, but the muon is about 200 times more massive. "