However, it also gets used much more loosely. Business Objects works by querying data through one or more sources which could be relational databases, OLAP cubes, or flat files and creating an in-memory data structure called a MicroCube which it uses to support interactive slice-and-dice activities. Analysis Services and MSQuery can make a cube. Round trips to the Query Panel make it somewhat clunky as a pure stream-of-thought OLAP tool but it does offer a level of interactivity that traditional reports don't.
Radiation design by CGI mesh modeling. Should illustrate the point nicely! I should suggest this to the standard business reporting atomic time people making Kerbal.
Could be a cool part of the design experience for nuclear spacecraft. I've found that a smaller shadow shield diameter is possible by adding truss segments between the shadow shield and the aft end of the radiator panels. Because the truss is lighter than the shadow shield, you realize a mass savings.
He is also using Blender 3D. Click for larger image, and to read William Black's detailed analysis and work logs on the project. Dogmatic Pyrrhonist and I both set about individually setting up a radiation simulation by CG lighting; his results are to be found at links in this thread November 6, Initially, for purposes of approximation, I used a cone, which you strip out of the scene once it has served its purpose, this is used to insure the radiators panels and everything else forward of the shadow shield are completely within the shadow region.
It is a matter of placing the cone so to intersect the aft-most edge of the radiation shadow shield, if all components forward of the shadow shield are properly placed nothing should protrude through the surface of the cone. I realized the technique can be used not only to optimize the shadow shield in terms of placement, but also in terms of diameter.
Previously, using the cone I had realized that increasing the distance between the aft edge of the radiator panels and shadow shield allows a smaller diameter shadow shield. Using this technique allowed me to test that theory, and it in fact worked exactly as anticipated.
I rendered the scene against a gray background, then a second time against a completely black background. I made an attempt which may be laughable to model the plume. I used a bright blue emission shader. I was curious in regards to how much blue emission, representing radiation from the plume, would show up on the structure of the vehicle.
Ron Fischer suggested I attempt this again with volumetric lighting, and I intend to do so at a future date. You might want to check for radiation scatter from the rocket bell to the radiators. Just eyeballing it, it looks like that could happen. Also, from the linked post describing the design — you probably will want a few centimeters of lead fore of the borated polyethylene, for sopping up the gamma rays.
The set of materials that are good at stopping neutrons seems to be orthogonal to the set of materials that are good at stopping gamma rays. By putting the poly between the reactor and the lead, you arrange it so that gamma rays produced by neutron interactions in the poly are also blocked by the lead part of the shield.
Changes in place, I ran the radiation simulation again. As you can see from the top image the simulation revealed that radiation was in fact impinging on the aft outer corners of the radiator panels and the tensioning cables, a fact not visible in my previous simulation.
This means radiation would travel along these parts of the vehicle, turning them into additional sources of radiation, damaging the radiator system and vehicle structure via radiation embrittlement, damaging control and electrical systems, and it means radiation would scatter from these points onto the rest of the vehicle posing a hazard to the crew.
I added truss segments and increased the diameter of the radiation shadow shield, running the simulation after each configuration change, till I arrived at a good result, which you can see in the second image down.
The lower two images are non-rendered screen captures of the same area of the model, the aft-most portion of the propulsion bus. Before structural modifications on the Left, and the final optimized configuration, on the Right.
The trajectory of space probes in general and the Pioneer probes in particular should follow precisely Newton's Laws of Motion. Once you've accounted for all the extra factors, of course.
So scientists were quite upset when the probes started to gradually diverge from their calculated trajectory. There are all sorts of proposed explanations, ranging from observational errors to new laws of physics.
Others have tried and found wanting the hypothesis that heat radiated from the probes could be the culprit. Francisco et al submit that this is because the radiation mathematical models are too simplistic.metin2sell.com: News analysis, commentary, and research for business technology professionals.
For any country that may be considering acquiring its first nuclear reactor, Russia's annual ATOMEXPO offers a seemingly simple solution.
At a recent event, thousands of people from around the world flocked to a giant, czarist-era exhibition hall. Data mart traditionally has meant static data, usually date/time oriented, used by analysts for statistics, budgeting, performance and sales reporting, and other planning activities.
Documents revealed by Edward Snowden and pertaining to the National Security Agency (NSA), US surveillance programs and US Intelligence Community partners abroad have been released and reported on since 5 June 2 Concept Layer.
In a syntactic sense, a concept is an XML Schema element definition, defining the element to be in the item element substitution group or in the tuple element substitution group.
At a semantic level, a concept is a definition of kind of fact that can be reported about the activities or nature of a business entity. Interviewing Principles. Reporters conduct two kinds of interviews: · News interview: The purpose is to gather information to explain an idea event or situation in the news.
· Profile: The focus is on an individual. A news peg often is used to justify the profile. For effective interviews, reporters prepare carefully, and they ask questions that induce the source to talk freely. Questions.
18th century ship surveyor; If a spacecraft is flying far away from anything else, and only has weak rockets fueled by puny chemical fuels or innocuous solar panels, nobody cares if the ship is a hunk-of-junk suffering from decades of deferred maintenance. Notices for November , This update contains summaries of procurement notices issued between November , that pertain to hazardous waste, investigation and cleanup of environmental contamination, and related environmental topics. Documents revealed by Edward Snowden and pertaining to the National Security Agency (NSA), US surveillance programs and US Intelligence Community partners abroad have been released and reported on since 5 June