Input Text File Research Articles

Development of an Automated Algorithm to Detect and Track Developing and Mesoscale Convective Systems

An objective algorithm is developed which is capable of identifying convective cloud clusters (CCCs) at the point of initiation, tracking any selected of all identified CCCs to maturity (MCS) and then to the point of dissipation and thereby accumulating some physical, morphological and radiative properties. The technique is able to account for periods of growth, propagating, merging, splitting and decaying, which take place during the lifetime of an individual cluster. The algorithm was tested using brightness temperature from merged infrared images of at least eight reporting geostationary satellites or channels at a spatial resolution of 4 Km and temporal resolutions of 30 minutes. The model data used is Weather Research and Forecasting (WRF) with the Advanced Research WRF (ARW) core simulated using the same spatial and temporal resolution with the satellite data for uniform comparison. This was the first attempt of developing such algorithm taking into consideration the uniqueness of West African convective systems. The algorithm loads an input (text) file where necessary inputs as preferred by the user, takes input file of satellite data or model’s output in netcdf file format. The good graphical interface for interacting with user makes it very flexible and easy to use with little computer knowledge. Good results from the comparison and validation shows a good agreement between the model’s output and satellite data shows the consistency in the tracking algorithm. The algorithm can hence be used for comparison or evaluating the performances of different Physics parameterizations/schemes in same model with the observed. It can also be used for comparison or evaluating performances of different models in simulating convective systems of the West Africa sub-region. Keywords : convective systems, tracking, properties, propagation, growth and decaying. DOI: 10.7176/JNSR/13-18-06 Publication date: October 31 st 2022

Cross-Language Text Document Plagiarism Detection System Using Winnowing Method

Currently, there are many text documents such as journals scattered on the internet, both Indonesian and English-language journals. With this, it is possible to act plagiarism by copying from foreign journals that are translated into other languages or copying directly without being changed from the original language. One way that can suppress these actions is to build a plagiarism detection system for cross-language text documents. The method that can be used to detect document plagiarism is the Winnowing method. Winnowing method is a method where text input will be processed to produce a hash value called a fingerprint. This study aims to build a system that can detect plagiarism of text documents in different languages using the Winnowing method. Text documents that can be tested are input text and PDF files. Documents used in system testing are journals that have the same topic. The results of the highest level of accuracy produced between the calculation of the Jaccard Coefficient with the Plagiarism Checker X application are in the fourth scenario with an average percentage value of 84.7%.

Direct determination of thermal expansion coefficients from the profile fitting of a diffractogram

Abstract This paper presents a set of files for working with Topas software in order to calculate the thermal expansion coefficients of a crystal phase as a function of the temperature from a set of powder diffractograms. All the calculations and profile fittings are performed in the same run, in cascade and without interruption. Free graphics software GNUPLOT reads the output files in order to display both the characteristic three-dimensional thermal expansion surface and any section of this surface. The results are also generated as text files. The files also calculate the thermal expansion coefficients in any [u, v, w] direction and at any temperature, and the angles between the principal axes and the crystallographic axes. The user can modify the input text files to their requirements. The calculations have been checked with calculated diffractograms at different temperatures for a triclinic, monoclinic and tetragonal phase. The calculated coefficients have been compared with previous works and show good agreement. The extent to which the peak/noise ratio of the diffractogram affects the calculated thermal expansion coefficients is also discussed.

Python script for homogeneous aqueous chemical reaction analysis and associated data related to radiolysis simulations.

A script was developed to perform homogenous radiolysis calculations. It was used specifically to calculate radiolysis products under various neutron and gamma flux environments [1]. The routine may be used to calculate a single radiolysis condition, multiple independent conditions, or multiple conditions computed in series (the final concentration set of run i is the initial concentration of run i+1). While designed for radiolysis of water, the routine is easily adapted to a variety of aqueous reaction systems and may even be altered with minimal effort for more general homogenous chemical analysis. In the present article, the Python routine is explained along with various outputs and inputs. It and the relevant input and output text files are included as supplementary materials. They are the raw data used for calculation of figures in the associated journal article.

NemoViz: a visual interactive system for atomistic simulations design

IntroductionGiven that the nanoscale regime has been reached, atomistic simulations are being used as predictive tools on a nanoscopic scale in nanoelectronics, materials science, and computational fluid dynamics. These simulations are generally supported by complex and specific simulation engines that require a deep knowledge of the engine as well as the field. The inputs required by these engines are usually described in long-text files, and their composition is error prone. These files contain details about the corresponding materials, geometries, algorithms, initial values, etc. The introduction of visualizations to the simulation creation process could alleviate some common user issues with simulation creation, in particular regarding the input-text files. In other fields, visual analytics have been used to facilitate user interaction with complex data. This work features a case study on the creation of a nanoelectronic device simulation and provides evidence of how the use of visual analytics reduces the cognitive complexity of defining an atomistic simulation.Case descriptionNEMO5 is a tool designed to simulate the electronic properties of nanoelectronic devices on an atomistic level. In this work we introduce NemoViz, an interactive visualization tool that enables users to define the simulation inputs required by NEMO5. Regular NEMO5 users were exposed to NemoViz, and users’ effectiveness and efficiency was measured while debugging the input for a simulation.Discussion and EvaluationThe results of this work show that NemoViz reduced the time that users spent defining the inputs of a NEMO5 simulation. When using NemoViz, Expert NEMO5 users detected errors twice as fast as when NemoViz was not used, and non-expert NEMO5 users were able to detect errors as effectively and efficiently as expert users.ConclusionsThese results suggest that the use of visual analytics as a simulation design process tool reduces the cognitive load of complex simulators such as NEMO5. Users’ interaction with visualization facilitates their understanding of output results and input descriptors, which may lead to new research codes from their widespread user base.

Gemma: Development of a two-dimensional neutron transport code with the method of characteristics

This work describes the development of Gemma code, a next generation neutron transport solver capable of employing accurate solution methods with the ability to incorporating the latest computing techniques and providing a flexible developmental environment. The Gemma code is a 2D method of characteristics solver, which was written completely in the D programming language. In doing so, flexibility is provided on two fronts, for the end user and future developers. Users interact with the code through an input text file where the geometry, materials and calculation parameters are specified with input cards. This approach eliminates the need for leaning any programming language and any errors found are presented clearly.

Simulation of transients in very large scale distribution networks by combining input text files with graphical user interface

A large scale distribution network with secondary grid network details can easily have ten thousands of nodes and become very complex to study using an Electromagnetic Transients Type (EMT-type) tool. This paper promotes a mixed design tool that connects “visually built” parts with the rest of the network maintained with text files. This approach allows quickly modifying the distribution network built with full details in a transient simulation environment while improving the simulation experience in many ways. Having full circuit details allows the initialization of transient analysis with correct multiphase load flow solution. Once the full circuit simulations are available it is possible to tune equivalent circuits and evaluate the order of approximation errors. A real North American urban distribution network is studied as an example in this paper. Both steady state and transient analysis are performed. Capacitor switching at the substation level is the transient phenomenon studied. A discussion on available guides and technical documents related to switching of shunt capacitors is provided in conjunction with the simulation results.

SU‐E‐T‐141: Automated Dose Point Placement for Cervical Cancer Brachytherapy Using Tandem and Ovoid Applicators

Purpose:To develop a standalone application, which automatically and consistently calculates the coordinates of points A and H based solely on the implanted applicator geometry for cervical cancer HDR brachytherapy.Methods:Manchester point A and ABS point H are both located 2cm lateral from the central tandem plane. While both points are located 2cm above the cervical os, surrogates for the os differ. Point A is defined relative to the anatomical cervical os. Point H is defined relative to the intersection of the tandem with the superior aspects of the ovoids. The application takes an input text file generated by the treatment planning system (TPS, BrachyVision, Varian) that specifies the source geometries. It then outputs the 3D coordinates of points A and H in both the left and right directions. The algorithm was implemented and tested on 34 CT scans of 7 patients treated with HDR brachytherapy delivered using tandem and ovoids. A single experienced user retrospectively and manually placed points A and H on the CT scans, whose coordinates were used as the gold standard for the comparison to the automatically calculated points.Results:The automatically calculated coordinates of points A and H agree within 0.7mm with the gold standard. The averages and standard deviations of the 3D coordinate difference between points placed by the two methods are 0.3±0.1 and 0.4±0.1mm for points A and H, respectively. The maximum difference in 3D magnitude is 0.7mm.Conclusion:The algorithm consistently calculates dose point coordinates independently of the planner for cervical cancer brachytherapy treated with tandem and ovoids. Automated point placement based on the geometry of the implanted applicators agrees in sub‐millimeter with careful manual placements by an experienced user. This algorithm expedites the planning process and eliminates dependencies on either user input or TPS visualization tools.

Improvement of Software for Dynamic Force Correction of Force Transducers

Software for correcting the dynamic error of the force sensor in the impact force measurement, which uses an output signal of the sensor itself, has been improved. The software corrects the output waveform of the sensor by using the output waveform itself and estimates its uncertainty. In the experiment, the dynamic error of the sensor is evaluated using the Levitation Mass Method (LMM). In the LMM, the impact force applied to the sensor is accurately determined as an inertial force of the moving part of the aerostatic linear bearing. The parameter for correcting the dynamic error is determined from the results of one set of impact measurements of the sensor. Then the validity of the parameter is evaluated by using the results of measurements of the sensor. The uncertainty of the un-corrected force and that of the corrected force are also estimated. In the previous version of the software, the user input “input text-file” which contains force that is calculated based on the static calibration results. On the other hand, the output signal from the sensor is not force. This time, the software has been modified to load input text-file which contains the output signal from the sensor.

Solenoid Development for an Emittance Transfer Experiment With a Design Environment System

Various solenoids must be developed for different machines of the FAIR-Project. A solenoid design environment (SDE) has been developed to reduce expenditure of design time and work. The design environment is based on an Opera-2d input text file. Most significant physical and technical parameters of a solenoid are considered. Due to the axial symmetry, a two-dimensional solenoid model describes well the main characteristics of a real magnet. The first use of the SDE was the design of a solenoid for an emittance transfer experiment at GSI. The 36 cm long magnet creates a flux density of 1 Tesla at the center. The coil of the solenoid is separated in two halves to allow placing a movable stripping foil on the beam axis. Nevertheless, the magnet design avoids a local flux minimum in the center, since it might act as a trap of electrons. Creating a SDE and a solenoid with this tool takes a little more manpower than designing one solenoid without environment system. But in the future the SDE will help to decrease development time significantly.

Auto-calibration and control strategy determination for a variable-speed heat pump water heater using optimization

This article introduces applications of the GenOpt® optimizer coupled with a vapor compression system model for auto-calibration and control strategy determination toward the development of a variable-speed ground-source heat pump water heating unit. The GenOpt® optimizer can be linked with any simulation program using input and output text files. It effectively facilitates optimization runs. Using the proposed GenOpt® wrapper program, objectives can flexibly be defined for optimizations, targets, and constraints. Those functionalities enable running extensive optimization cases for model calibration, configuration design, and control strategy determination. In addition, a methodology is described to improve prediction accuracy using functional calibration curves. Using the calibrated model, control strategies of the ground-source heat pump water heater were investigated, considering multiple control objectives and covering the entire operation range.

PeneloPET, a Monte Carlo PET simulation tool based on PENELOPE: features and validation

Monte Carlo simulations play an important role in positron emission tomography (PET) imaging, as an essential tool for the research and development of new scanners and for advanced image reconstruction. PeneloPET, a PET-dedicated Monte Carlo tool, is presented and validated in this work. PeneloPET is based on PENELOPE, a Monte Carlo code for the simulation of the transport in matter of electrons, positrons and photons, with energies from a few hundred eV to 1 GeV. PENELOPE is robust, fast and very accurate, but it may be unfriendly to people not acquainted with the FORTRAN programming language. PeneloPET is an easy-to-use application which allows comprehensive simulations of PET systems within PENELOPE. Complex and realistic simulations can be set by modifying a few simple input text files. Different levels of output data are available for analysis, from sinogram and lines-of-response (LORs) histogramming to fully detailed list mode. These data can be further exploited with the preferred programming language, including ROOT. PeneloPET simulates PET systems based on crystal array blocks coupled to photodetectors and allows the user to define radioactive sources, detectors, shielding and other parts of the scanner. The acquisition chain is simulated in high level detail; for instance, the electronic processing can include pile-up rejection mechanisms and time stamping of events, if desired. This paper describes PeneloPET and shows the results of extensive validations and comparisons of simulations against real measurements from commercial acquisition systems. PeneloPET is being extensively employed to improve the image quality of commercial PET systems and for the development of new ones.

NASA TLX: Software for assessing subjective mental workload

The NASA Task Load Index (TLX) is a popular technique for measuring subjective mental workload. It relies on a multidimensional construct to derive an overall workload score based on a weighted average of ratings on six subscales: mental demand, physical demand, temporal demand, performance, effort, and frustration level. A program for implementing a computerized version of the NASA TLX is described. The software version assists in simplifying collection, postprocessing, and storage of raw data. The program collects raw data from the subject and calculates the weighted (or unweighted) workload score, which is output to a text file. The program can also be tailored to a specific experiment using a simple input text file, if desired. The program was designed in Visual Studio 2005 and is capable of running on a Pocket PC with Windows CE or on a PC with Windows 2000 or higher. The NASA TLX program is available for free download.

Runwien: a text-based interface for the WIEN package

A new text-based interface for WIEN2k, the full-potential linearized augmented plane-waves (FPLAPW) program, is presented. This code provides an easy to use, yet powerful way of generating arbitrarily large sets of calculations. Thus, properties over a potential energy surface and WIEN2k parameter exploration can be calculated using a simple input text file. This interface also provides new capabilities to the WIEN2k package, such as the calculation of elastic constants on hexagonal systems or the automatic gathering of relevant information. Additionally, runwien is modular, flexible and intuitive. Program summary Program title: runwien Catalogue identifier: AECM_v1_0 Program summary URL: http://cpc.cs.qub.ac.uk/summaries/AECM_v1_0.html Program obtainable from: CPC Program Library, Queen's University, Belfast, N. Ireland Licensing provisions: GPL version 3 No. of lines in distributed program, including test data, etc.: 62 567 No. of bytes in distributed program, including test data, etc.: 610 973 Distribution format: tar.gz Programming language: gawk (with locale POSIX or similar) Computer: All running Unix, Linux Operating system: Unix, GNU/Linux Classification: 7.3 External routines: WIEN2k ( http://www.wien2k.at/), GAWK ( http://www.gnu.org/software/gawk/), rename by L. Wall, a Perl script which renames files, modified by R. Barker to check for the existence of target files, gnuplot ( http://www.gnuplot.info/) Subprograms used: Cat Id: ADSY_v1_0/AECB_v1_0, Title: GIBBS/CRITIC, Reference: CPC 158 (2004) 57/CPC 999 (2009) 999 Nature of problem: Creation of a text-based, batch-oriented interface for the WIEN2k package. Solution method: WIEN2k solves the Kohn–Sham equations of a solid using the FPLAPW formalism. Runwien interprets an input file containing the description of the geometry and structure of the solid and drives the execution of the WIEN2k programs. The input is simplified thanks to the default values of the WIEN2k parameters known to runwien. Additional comments: Designed for WIEN2k versions 06.4, 07.2, 08.2, and 08.3. Running time: For the test case (TiC), a single geometry takes 5 to 10 minutes on a typical desktop PC (Intel Pentium 4, 3.4 GHz, 1 GB RAM). The full example including the calculation of the elastic constants and the equation of state, takes 9 hours and 32 minutes.

A statistical and combinatorial approach to text file layout inference

For a computer program to process an input text file successfully, the program must recognize the file's characteristics. A file's characteristics may include file encoding (for example, ASCII vs. ...

Pelican: pedigree editor for linkage computer analysis.

Linkage analysis software requires an input text file that describes the structure of the pedigrees to be analysed. Manual creation of these files is tedious and error-prone, and a graphical input tool is desirable. This is currently only available in commercial packages that include much greater functionality. We have therefore developed Pelican, a lightweight graphical pedigree editor for rapid construction of linkage pedigree files and diagrams. The software runs on any Java-enabled machine (version 1.2 or higher). A Java Web Start launch, class files, a demonstration applet, source code and documentation are freely available at http://www.rfcgr.mrc.ac.uk/Software/PELICAN/

A PASCAL language facility for the design and analysis of acoustic line arrays

A PASCAL language facility for the design and analysis of acoustic line arrays is described and sample outputs of the facility are presented. The facility consists of two types of programs. The first type is used for designing arrays (e.g., generating element positions and shading coefficients) and the second type is used for analyzing the performance (e.g., array gain, side‐lobe levels) of the designs generated. Flexibility is maintained by leaving the programs intact and introducing all changes for new cases via input textfiles. Outputs available are automatic plots of universal beam pattern functions, polar directivity patterns, directivity index as a function of beam steer angle or frequency and array gain as a function of beam steer angle in a directional noise field.