scholarly journals DCHAIN: A user-friendly computer program for radioactive decay and reaction chain calculations

1994 ◽  
Author(s):  
L.V. East
Keyword(s):  
Computer Program ◽  
Radioactive Decay ◽  
User Friendly ◽  
Reaction Chain

Prediction of Bend Allowance and Springback in Air Bending

2006 ◽  
Vol 129 (2) ◽  
pp. 342-351 ◽  
Author(s):  
Hyunok Kim ◽  
Ninad Nargundkar ◽  
Taylan Altan
Keyword(s):  
Computer Program ◽  
Analytical Model ◽  
Elastic Recovery ◽  
Experimental Results ◽  
Air Bending ◽  
Acceptable Accuracy ◽  
Geometric Tolerances ◽  
Plastic Elongation ◽  
Bending Process ◽  
User Friendly

In the fabrication industry, one of the critical challenges is to maintain close geometric tolerances in finished products, particularly in the air bending process. In many cases, this problem is related to springback and plastic elongation/compression of the sheet, as it undergoes deformation in bending. Springback refers to the elastic recovery of the bent sheet after unloading, whereas bend allowance refers to the elongation of the sheet during bending. Both factors, if not predicted properly, may lead to dimensional inaccuracies in the finished product and cause difficulties in the assembly. Therefore, it is essential to predict springback and bend allowance in order to obtain the final desired geometry. A new analytical model was developed to predict springback and bend allowance simultaneously in air bending, and a user-friendly computer program, BEND (Version 3.0), was developed. Results obtained from the BEND program were compared to other analytical predictions and experimental results available in the literature. It was concluded that the proposed analytical model and the computer program predicted bend allowance and springback within acceptable accuracy.

Torsional Vibration of Rotating Shafts

1994 ◽  
Vol 22 (2) ◽  
pp. 113-122
Author(s):  
K. Y. S. Cheung ◽  
A. Daadbin
Keyword(s):  
Computer Program ◽  
Torsional Vibration ◽  
Large Power ◽  
Rotating Shafts ◽  
User Friendly ◽  
Experimental Rig

In rotating shafts where large power is transmitted, it is desired to achieve smooth transmission and avoid any torsional vibration in the system. These vibrations result from torsional flexibilities due to shaft stiffnesses and carried inertias. To demonstrate this phenomenon a user-friendly computer program is developed as a result of a final-year project to analyse different multi-degree torsional vibratory systems. The computer program together with the corresponding experimental rig makes the students aware of the torsional resonances in the rotating shafts and demonstrates their effect.

The Application of USDOT Based CRASH Computer Programs CRASH/TRAJECTORY in Forensic Engineering

1986 ◽  
Vol 3 (1) ◽  
Author(s):  
Joel T. Hicks
Keyword(s):  
Computer Program ◽  
Computer Programs ◽  
Accident Reconstruction ◽  
Department Of Transportation ◽  
Federal Program ◽  
Forensic Engineering ◽  
Data Tables ◽  
User Friendly ◽  
Accident Scene ◽  
The U.S

Automotive accident reconstruction can be dramatically assisted and improved by the use of microcomputers which are programed to utilize the vehicle damage and accident scene data. CRASH / TRAJECTORY is such a program and is based upon a main-frame computer program developed by the U.S. Department of Transportation. The federal program has been personalized and improved for use by legal and engineering offices faced with the task of interpreting actual accident cases. Where the federal program did not allow the user full access to the internal data tables and the output of the programs equations, these new programs do, through the use of user friendly menus and tables.

scholarly journals AUG-Segmenter: a user-friendly tool for segmentation of long time series

2010 ◽  
Vol 12 (3) ◽  
pp. 318-328 ◽  
Author(s):  
Abdullah Gedikli ◽  
Hafzullah Aksoy ◽  
N. Erdem Unal
Keyword(s):  
Time Series ◽  
Dynamic Programming ◽  
Linear Regression ◽  
Computer Program ◽  
Branch And Bound ◽  
Real World ◽  
The Third ◽  
Time Series Segmentation ◽  
Long Time ◽  
User Friendly

In this study, three algorithms are presented for time series segmentation. The first algorithm is based on the branch-and-bound approach, the second on the dynamic programming while the third is a modified version of the latter into which the remaining cost concept of the former is introduced. A user-friendly computer program called AUG-Segmenter is developed. Segmentation-by-constant and segmentation-by-linear-regression can be performed by the program. The program is tested on real-world time series of thousands of terms and found useful in performing segmentation satisfactorily and fast.

scholarly journals When Second Best Is Good Enough: Another Probabilistic Look at Saturation Mutagenesis

2011 ◽  
Vol 78 (1) ◽  
pp. 258-262 ◽  
Author(s):  
Yuval Nov
Keyword(s):  
Amino Acids ◽  
Computer Program ◽  
Saturation Mutagenesis ◽  
Library Size ◽  
Second Best ◽  
Randomization Scheme ◽  
Design Requirements ◽  
User Friendly ◽  
New Criteria

ABSTRACTWe developed new criteria for determining the library size in a saturation mutagenesis experiment. When the number of all possible distinct variants is large, any of the top-performing variants (e.g., any of the top three) is likely to meet the design requirements, so the probability that the library contains at least one of them is a sensible criterion for determining the library size. By using a criterion of this type, one may significantly reduce the library size and thus save costs and labor while minimally compromising the quality of the best variant discovered. We present the probabilistic tools underlying these criteria and use them to compare the efficiencies of four randomization schemes: NNN, which uses all 64 codons; NNB, which uses 48 codons; NNK, which uses 32 codons; and MAX, which assigns equal probabilities to each of the 20 amino acids. MAX was found to be the most efficient randomization scheme and NNN the least efficient. TopLib, a computer program for carrying out the related calculations, is available through a user-friendly Web server.

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