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Lecture 26 The Hydrogen Atom - Cornell University
ECE 3030 –Summer 2009 –Cornell University The Hydrogen Atom: Hamiltonian in New Coordinates Proton Electron The Hamiltonian is: ˆ2 ˆ2 2 ˆ 224 ˆˆ e p epoe p p p e H mm rr In the new coordinates the Hamiltonian is: ˆ22 2ˆ ˆ 224 ˆ o Qp e H M r What we are looking for are the eigenfunctionsand
Handout 8 Linear Combination of Atomic Orbitals (LCAO)
Atom Publishing Protocol CS 431 – Spring 2008 Cornell University Carl Lagoze – 03/12/08 Host: cs cornell edu
A BRIEF INTRODUCTION TO PARTICLE PHYSICS - Cornell University
Inside an Atom: The central nucleus contains protons and neutrons which in turn contain quarks Electron clouds surround the nucleus of an atom The science of particle physics surged forward with the invention of particle accelerators that could accelerate protons or electrons to high energies and
MATERIALS SIMULATIONS AT THE ATOM - Cornell University
University College Dublin’s science Faculty, graduating in 1996 with a B Sc in Mathematical Physics and Experimental Physics Having been accepted into Cor-nell University to pursue graduate study, Nicholas arrived in Ithaca, NY on August 23, 1996, one day after completing his last undergraduate examination After ?ve
Lecture 3 The Quantum Story: How It All Started
ECE 3030 –Summer 2009 –Cornell University The De Broglie Hypothesis and the Atom According to the Be Broglie hypothesis, since the electron has an associatedwave, the circumference of the electron orbit in an atom must be an integral multiple of the electron wave’s wavelength for the associatedwave to smoothly fit in the orbit: 2 rn 22 pmv
64782_7lecture_3_11_08.pdf Publishing and Edi.ng Web Resources Atom Publishing Protocol CS 431 - Spring 2008
Cornell University Carl Lagoze - 03/12/08
• Acknowledgments - Dan Diephouse - netzooid.org - Elizabeth Fisher - Colorado - Ibm.com/developerworks Atom • ANempt to ra.onalize RSS 1.x, 2.x divergence • Encoding is up-to-date with current XML standards - namespaces - Schema • Robust content model - Dis.nguishes between metadata and content (plain text,HTML, base-64 binary)
• Well-defined extensibility model • IETF FRC 4287 - hNp://www.ie\.org/rfc/rfc4287Structure of Feed
• Feed - ID - Author - Link - Title - Updated - * - Entry • ID • Updated • Link • Summary • Content • *Simple Atom Feed
Feed id Entry id "alternate" (source) id
Extending Atom with namespaces
Embedding Content in Atom
Embedding Content in Atom
Atom Publishing Protocol (APP)
• HTTP-based protocol for publishing, dele.ng, and upda.ng resources • hNp://bitworking.org/projects/atom/drab- ie\-atompub-protocol-08.html • Generic API for crea.on, access, modifica.on, dele.on of resources (calendar entries, blog entries, etc.) - Google Data API - Microsob Live Pla\ormGeneric Packaging Model
• En.ty containing en..es (compound documents) • Each en.ty has a unique URI • Adding an en.ty to a package produces a new URI • All opera.ons done on URIs with HTTP protocol requestsRecall HTTP
• GET: Used to retrieve a representa.on of a collec.on or member resource• POST: Used to create a new member resource • PUT: Used to update a member resource • DELETE: Used to remove a member resource • Headers
- Metadata about request and responseSimple HTTP GET - Response
GET /path/file.html HTTP/1.1 Host: cs.cornell.edu User-Agent: Mozilla/3.0 [Blank line] HTTP/1.1 200 OK Content-Type: text/html Date: Wed, 31 Jan 2007 14:58:57 GMT Content-Length: 1354
... Representa.onal State Transfer (REST) Programming • Basis of many modern web APIs • Alterna.ve to complex services APIs such as SOAP • Basics - Built en.rely on HTTP requests - Access and manipulate resources via HTTP • One-to-one mapping from resources to URIAtom Publishing Protocol Model
Service Workspaces Collec.ons
Entries
• Entry ResourceMedia Entries
• Media Link Entry • Media ResourceAPP Resource/En.ty URI Structure
Resources
/ /blog/feed /blog/feed/entry.atom /blog/entryDescrip.on
Service Collec.on Entry Alternate Representa.on
Service Introspec.on Document GET /
From collec.on to resource GET /blog/feed