Windows Presentation Foundation Research Articles

The Design and Construction of a 12-Channel Electrocardiogram Device Developed on an ADS1293 Chip Platform

An accurate and compact electrocardiogram (ECG) device will greatly assist doctors in diagnosing heart diseases. It will also help to address the increasing number of deaths caused by heart disease. Accordingly, the goal of the project is to design and construct an easy-to-use compact 12-lead electrocardiogram device that communicates with a computer to create a system that can continuously monitor heart rate and which can be connected to allied medical systems. The design is based on an ECG receiver circuit utilizing an IC ADS1293 and an Arduino Nano. The ADS1293 has built-in input Electromagnetic Interference (EMI) filters, quantizers, and digital filters, which help in reducing the size of the device. The software has been created using the C# programming language, with Windows Presentation Foundation (WPF), aiding the collection of the ECG signals from the receiving circuit via the computer port. An ECG Multiparameter Simulator has been used to calibrate the ECG device. Finally, a plan has been developed to connect the arrangement to health systems according to HL7 FHIR (Health Level Seven Fast Healthcare Interoperability Resources) through Representational State Transfer Application Programming Interface (Rest API). The ECG device, completed at the cost of U$169 excluding labor, allows for the signal of 12 leads of ECG signal to be obtained from 10 electrodes mounted on the body. The processed ECG data was written to a JSON file with a maximum recording time of up to three days, managed by a Structured Query Language Server (SQL) Server database. The software retrieves patient data from electrical medical records in accordance with HL7 FHIR standards. A compact and easy-to-use ECG device was successfully designed to record ECG signals. An in-house developed software was also completed to display and store the ECG signals.

REAL-TIME PLOTTING OF BIOMEDICAL SIGNALS IN APPLICATIONS UTILIZING WINDOWS PRESENTATION FOUNDATION TECHNOLOGY

Abstract: Utilization of personal computers in medicine requires strong emphasis on software performance. Contemporary programming languages give engineers great flexibility in developing applications. Since these technologies are more and more complex, there is a need to analyze methods of achieving desired results taking into account time requirements. This paper focuses mainly on development of plotting module using Windows Presentation Foundation library, which is one of the newest tool for software developers. Aspects of plotter creation for technologically limited screen are covered and conclusions are summarized giving recommendations regarding the topic. General methods of drawing signal on a raster surface are also discussed. Since medical signals in monitoring range consist of frequencies up to about 100 Hz, one has to take into account aspects of signal scaling in order to not to make its important parts invisible. The main problem is that personal computer screen, e.g. a monitor, is purely digital in nature; actually it is the set of pixels (consisting of three components). Because resolution is limited, the signal must be limited in frequency to the range which can be shown at a given plotting speed. This paper describes these aspects of signal plotting as well as the method for virtually increasing pixel resolution by using particular components of a pixel. This paper is a summary giving a general idea of the capabilities of the above mentioned WPF technology and the basis for creating such programs using methods such as: WriteableBitmap method, DrawingVisual method, Canvas Method type 1, Canvas Method type 2.

Analysis of color properties of raster images of histological microspecimens: own research experience

This study is aimed to develop a computer program to analyze the color properties of raster images of histological microspecimens used in pathological anatomy and forensic medicine. When developing a computer program, we used the system for building client applications – Windows Presentation Foundation (WPF). The system allows you to create applications with visually attractive user interaction capabilities. The programming language is C#, as well as basic graphics capabilities of the .NET Framework system are used. To speed up the display we applied double buffering. In the course of the research, the authors developed a modern computer program «Analysis of color properties of raster images». This program allows you to analyze the color of each individual pixel of a photograph in RGB and Lab color models, comparing the colors and brightness of individual pixels, selecting groups of points and determining statistical characteristics of them. Characteristic points are well distinguishable in the photographs, studied with the program «Analysis of color properties of raster images». This makes it possible to select and automate these properties, using computer recognition algorithms, completely removing human factor’s influence on the analysis results. The computer program «Analysis of color properties of raster images» is of significant scientific and practical interest for specialists both in the field of morphology (pathologists, forensic experts, etc.), and in the field of other biomedical disciplines.

A new version of Hyper-Fractal Analysis: .Net WPF module for RGB 3D reconstruction of medical three-channel images

In Grossu et al. (2022) [1] we presented a module for fractal analysis of three-channel (most commonly CT: native, arterial contrast, and venous contrast) medical images stored in csv specific files coming from various sources (CT, MRI etc). In current paper we extended these functionalities to file series. We also developed a .Net WPF user control (a “three-dimensional Picture Box”) for facilitating 3D image reconstruction. For a better representation, the application allows various ways of filtering and highlighting the volumes of interest (specify parallelepipedal selections, apply classical or fuzzy band-pass filters, set voxel transparency and/or slice spacing, and representing each slice matrix component on a separated RGB channel). New version program summaryProgram Title: Hyper-Fractal Analysis v07CPC Library link to program files:https://doi.org/10.17632/z9knmny56p.3Licensing provisions: GPLv2Programming language: C# 7.3 /.Net Framework 4.7.1External routines: Prism, https://github.com/PrismLibrary/Prism-DocumentationJournal reference of previous version: Comput. Phys. Commun. 273 (2022) 108255Does the new version supersede the previous version?: YesNature of problem: Estimating the fractal dimension of images, multi-dimensional objects, and three-channel images. 3D reconstruction of medical images.Solution method: .Net WPF user control for representing 3D three-channel medical images stored in specific csv file series.Reasons for the new version: Develop a RGB 3D image reconstruction module for CT, MRI etc. three-channel images.Summary of revisions:• Hyper-Fractal Analysis v06 [1] allows opening specific csv files (.ct.csv) containing up to three matrices of integers (three-channel images). Although this functionality was initially intended for CT images [2], one could notice the high generality of the proposed solution. Thus, the csv data could come from various other DICOM sources (e.g. MRI). In order to better illustrate this fact, we changed the expected file extension to slice.csv.• The current version was also extended for opening folders containing image series. Following this purpose, each data “slice” must be stored in a separated three-channel csv file conforming to the following file name convention: [Name].[SliceIndex].slice.csv. The folder must also include a metadata file (meta.csv) containing various information of interest (pixel size, slice thickness, spacing between slices, and so on). The application GUI allows navigating between slices.• The ThreeDimPictureBox component was developed in Windows Presentation Foundation (WPF) UI framework [3] on top of the Model View-ViewModel (MVVM) pattern [4]. It was designed as a “3D PictureBox” user control for graphically representing a set of voxels specified as an input parameter.• One important challenge in 3D medical image reconstruction is related to the massive amount of data (e.g. 94,371,840 triangles for only 30 slices at 512 X 512 pixels). Taking into account the medical specific requirements, we mainly focused on representation's accuracy. Thus, for avoiding artifacts generated by interpolation algorithms, we did not implement any method of adapting slices with different resolutions [5]. The impact on performance is mainly managed by all filtering the pixels using the existing band-pass tool, restricting the analyzed data to a desired subset (parallelepipedal selection), choosing a lower resolution, and reducing the number of RGB colors. The algorithm will also merge the row adjacent voxels with the same color. As a transparency alternative, the user could opt for increasing the slice spacing (Fig. 1). For each combination of parameters, the numbers of necessary triangles and colors are priorly calculated, thus allowing the user to decide rendering or not the output voxels, as a function of known available resources.• In the previous version, we used three image channels for storing the native, arterial contrast, and venous contrast CT information. Each of the corresponding matrices is represented on a different RGB channel [6,7], which results in highlighting the image differences. The RGB colors resulting from this technique are also assigned to the voxels in the 3D reconstruction algorithm.• For avoiding the OutOfMemory exception, the application platform target was changed from Any CPU to x64.• Considering the 3D visualization difficulties involved by voxels occultation effects (even when setting high transparency levels) all previously mentioned functionalities were designed for helping the physician isolating and highlighting specific 3D data sub-sets, which is expected to be of significant interest in various medical areas [8–10].

Simulation modelling of operational tests to assess the reliability of railway automation software systems

A simulation model for in-servicetesting of software reliability assessment for railway automation systems is described in this paper. As a basic concept, the reliability indicators are calculated using the concept of a reference object, being the most common element of the respective train protection systems on the road network. We are aware that this concept is embedded in the subsystem for the formation of the reference object-element infrastructure of JSC “Russian Railways”, involving the function of bringing all track, electrification and power supply facilities as well as automation and telemechanics facilities to the reference objects. In order to develop this approach, the “Performance Test Simulation” application was developed on the Windows Presentation Foundation (WPF) platform, using the object- and component-oriented programming language C#, allowing the practical simulation of performance tests of reference objects of various types, during the design phase, using the Monte Carlo method.

Development of the Interactive Rehabilitation Game System for Children with Autism Based on Game Psychology

Autism is a widespread neurodevelopmental disorder. The cause of autism is still unclear. Once it occurs, it will be accompanied for life. Intervention treatment is currently recognized as an effective method. With the rise of somatosensory technology, Kinect has gradually been applied to the field of autism rehabilitation with its natural human-computer interaction and game rehabilitation psychology. Because there is a great demand for autism rehabilitation training resources in China and the existing somatosensory rehabilitation equipment has some shortcomings, this study designed a set of somatosensory rehabilitation system for autistic children based on Kinect and carried out its rehabilitation effect with experimental demonstration. The specific research work mainly includes the following contents: first, aiming at the rehabilitation needs of children with autism, this article combines mainstream intervention treatment methods, using C# programming language and Windows Presentation Foundation (WPF) development technology to develop Kinect-based somatosensory game modules. The somatosensory rehabilitation game involves the training of the language communication, behavioral movement, daily life, sensory integration, and other comprehensive abilities of children with autism, which improves the shortcomings of the previous rehabilitation training in the scope of intervention. A variety of game types and diversified game modes are designed to meet the individual needs of rehabilitation training for children with autism. Second, experiments were carried out to verify the rehabilitation effect of the system. Using the Childhood Autism Rating Scale (CARS) and Pediatric Evaluation of Disability Inventory (PEDI) scale as the rehabilitation effect evaluation tools of this system, the experimental subjects were divided into the experimental group and control group, and different comparative experiments were conducted, respectively. Through the analysis of the scoring data of the CARS, it is found that the comprehensive ability of the experimental group of children receiving somatosensory rehabilitation training is significantly improved. Through the analysis of the scoring data of the PEDI scale, it is found that the children’s language communication, behavioral activities, and daily life abilities of the experimental group have been significantly enhanced. This article focuses on the design of the somatosensory game module of the autistic somatosensory rehabilitation system and the analysis of the system’s rehabilitation effect. It satisfies the training and rehabilitation needs of children with autism and has strong practical significance.

Implementation of a Pharmacokinetic Model for Inhaled Anesthetics Into a Software-Based Anesthesia Workstation for LLEAP-Compatible Simulators.

Laerdal Learning Application (LLEAP)-compatible simulation manikins lack some specific functions that can be useful in anesthesia simulation scenarios. Our objective was to develop a software-based anesthesia workstation with a pharmacokinetic model for inhaled anesthetics for this simulation platform. A Windows Presentation Foundation application that emulates an Aespire anesthesia workstation was created. The Gas Man simulator (Med Man Simulations) was used as a reference for the pharmacokinetic model. A concordance analysis was made between the results obtained by our model and the reference, in open and semiclosed circuit, in both 70- and 140-kg patients. The mean of the differences between the compartments was less than 0.01 vol% in all circumstances. The percentile rank P2.5 to P97.5 was less than 0.5 vol% in all compartments, except for the open circuit compartment. No significant differences were found between both pharmacokinetic models. We consider that our software-based anesthesia workstation can be useful for simulating mechanical ventilation and halogenated administration in different scenarios.

ОПРЕДЕЛЕНИЕ ОПТИМАЛЬНОГО МЕСТОПОЛОЖЕНИЯ РАСПРЕДЕЛИТЕЛЬНОГО ЦЕНТРА НА ЗАДАННОЙ ТЕРРИТОРИИ

This article discusses the problem of determining the optimal location of the distribution center in a given territory and the ways to solve it, through implementation in C # in Visual Studio 2019 using WPF (Windows Presentation Foundation) technology, which is a subsystem for building graphical interfaces.

Model Approach to Analytically Identify Stuck Pipe and Its Mechanism in Wellbore

Stuck pipe incidents translate to non-productive time. There is a need to mitigate stuck pipe incidents which can be achieved by conforming to recommended practices. Also, quick diagnosis is necessary in order to free a stuck pipe. Trial-and-error method can further complicate the situation. This work aims at diagnosing stuck pipe mechanisms and recommend practices to free a stuck pipe. spANALYZE also estimates the axial force and torque needed to free a stuck pipe caused by differential sticking. spANALYZE is a thick desktop client application developed in C# using the Microsoft Visual Studio 2019 development environment. It is an object-oriented .NET application that utilizes the Windows Presentation Foundation (WPF) architecture for its user interface. Each of the analyzers within spANALYZE were implemented generically as a list of nodes, representing the concept of a flow chart. New analyzers can easily be added simply by programmatically defining each node in the flow chart. Each node has a node identifier, a node type, node text, and the node identifiers of each answer – yes, no and restricted. spANALYZE presents the following benefits: quick and early detection of stuck pipe mechanisms, propose recommended action steps to free pipe, calculate stuck pipe depth, compute the torque and axial force needed to free a stuck string.

A Model Approach to Analytically Identify Stuck Pipe and Its Mechanism in Wellbore

Stuck pipe incidents translate to non-productive time. There is a need to mitigate stuck pipe incidents which can be achieved by conforming to recommended practices. Also, quick diagnosis is necessary in order to free a stuck pipe. Trial-and-error method can further complicate the situation. This work aims at diagnosing stuck pipe mechanisms and recommend practices to free a stuck pipe. spANALYZE also estimates the axial force and torque needed to free a stuck pipe caused by differential sticking. spANALYZE is a thick desktop client application developed in C# using the Microsoft Visual Studio 2019 development environment. It is an object-oriented .NET application that utilizes the Windows Presentation Foundation (WPF) architecture for its user interface. Each of the analyzers within spANALYZE were implemented generically as a list of nodes, representing the concept of a flow chart. New analyzers can easily be added simply by programmatically defining each node in the flow chart. Each node has a node identifier, a node type, node text, and the node identifiers of each answer – yes, no and restricted. spANALYZE presents the following benefits: quick and early detection of stuck pipe mechanisms, propose recommended action steps to free pipe, calculate stuck pipe depth, compute the torque and axial force needed to free a stuck string.

Comparative analysis of Windows Presentation Foundation and Windows Forms

The article presents a comparison of two technologies for creating desktop applications based on C#. The analysis conserns the use of the processor, RAM and time of the operation was carried out on the technologies of Windows Presentation Foundation and Windows Forms. The research use applications with the same functionality in both technologies. The comparative analysis took into account the times of operations and application performance.

Graphical User Interface Optimalization Based C# with Visual Studio to Operator Control Unit Rhino Robot

System of communication and data storage on the old version Graphical User Interface (GUI) can not developed or modified because it is not made in a modular way. In addition, the memory capacity is quite large because there are XNA Framework function and excessive robot control menus. Based on these problems we need to optimize GUI on the Operator Control Unit (OCU) Rhino robot. Programming language using C # with Integrated Development Environment (IDE) Visual Studio. Communication systems and data storage robots are grouped into 3 parts of the program with inheritance class. It creation use one of the IDE features of the Windows Presentation Foundation (WPF). The result of this research is program of communication system and data storage more structured so that can be developed for further research. After that, the memory capacity of the new version of GUI is 57.4 MB with an average memory usage of about 513.5 MB and the number of GUI pages as many as 8 with 3 main page details and 5 supporting pages to control robot motion.

Digital Assessment of Difficulty in Impacted Mandibular Third Molar Extraction.

In recent era of computer and software technology, it is necessary to introduce software which helps in routine assessment of surgical procedures practiced in oral surgery. Removal of impacted third molar is a common procedure. It is hard to evaluate factors that complicate removal of impacted third molars because of the large variation among patients and the difficulty in creating a study design. In this article, we have described about our newly designed software developed in order to assess the difficulty in extracting impacted mandibular third molars accurately, thereby reducing the bias faced during the assessment of difficulty in removing impacted mandibular third molar. A software is designed using C# computer language and Windows Presentation Foundation Framework. The measurements and angulations are accurately calculated by this software which helps to bring about uniformity in results, thus minimizing the bias during clinical as well as study purposes. Mandibular third molar difficulty level calculator can be useful software for dental practitioners in day-to-day practice. Dental students and professionals should be made aware of this software so as to utilize it to the utmost possible level.

Thermodynamic Optimization of a SOFC-CHP System with Exhaust Gas Recirculation Employing an In-House Numerical Simulator

Thermodynamic optimization of a solid oxide fuel cell-combined heat and power system is the first step for its commercialization. This study suggests a thermodynamically optimized SOFC-CHP system through numerical modeling and simulation. An in-house numerical simulator is developed, which utilizes design variables of system components and their empirical correlations to enhance the accuracy of simulation. It is developed with C# language, equipped with graphical user interface by making use of Windows Presentation Foundation. Two system layout designs are comparatively analyzed: Direct Combustion Branching (DC Branching) and Direct Combustion Branching equipped with Anode exhaust gas Recirculation (DC Branching AR). The thermodynamic performance of two system layouts are compared in the aspects of efficiency and power. It is found that employing anode exhaust gas recirculation enhances thermodynamic efficiencies but reduces net electrical power.

Estimation of surgeons' ergonomic dynamics with a structured light system during endoscopic surgery.

The purpose of this study was to use motion capture to collect body posture information during simulated endoscopic sinus surgery interventions performed by both specialists and residents in standing and sitting positions and to analyze that information with the validated Rapid Upper Limb Assessment (RULA) tool, which allows calculation of a risk index of musculoskeletal overload. Bilateral endoscopic sinus surgery was performed in 5 cadaver heads by 2 residents, and 4 practicing rhinologists. Musculoskeletal symptoms were evaluated before and after the dissection. Full-body postural data were collected with the help of Kinect and a .NET WPF (Windows Presentation Foundation) software application to record images of the surgical procedures, and then analyzed with the RULA tool to calculate a risk score indicative of the exposure of the individual surgeon to ergonomic risk factors associated with upper extremity musculoskeletal disorders. All subjects reported physical discomfort after nasal endoscopic procedures. An overall similar RULA score was obtained by the residents and the practicing rhinologists. The RULA score was slightly lower for the sitting position than for the standing position, mostly due to a lower score in group B (neck, trunk, and leg); however, the RULA score for group A (arm and wrist analysis) was higher, denoting a higher risk for the upper back and arms. Significant musculoskeletal symptoms were reported after an endoscopic operation by both the resident and the practicing otolaryngologists. All surgeons obtained a high RULA score, meaning that urgent changes are required in the task.

RANCANG BANGUN APLIKASI BARANG JASA MENGGUNAKAN C#, WPF, DAN SQL SERVER 2012

Barang Jasa is an application that used for Divisi Pengadaan Barang dan Jasa. Barang Jasa serves to record every purchase of goods and services used to meet the needs of both fleet and crew in the long term. Barang Jasa also serves to make the Nota Dinas to be processed by Divisi Keuangan on the purchase of goods and services that have been performed. This application was created by using Windows Presentation Foundation (WPF), which is a Microsoft technology to create desktop applications. This application was made using the method protoyping development,C# as a programming language, WPF as a interface design technology, and SQL Server 2012 as the database. WPF can present the appearance that can be tailored to user needs. This study discusses the interface, backend applications, and database design. After testing the flexibility of the interface on the screen with a resolution of 1366 x 768, 1024 x 768 and 1280 x 720, proves that WPF can adjust the screen resolution being tested. The test results showed that the backend of Barang Jasa application are functioning properly, the test is done using sql query by entering the required parameters, for example username and password to log in and match the query returns results with what is displayed by the application.

Virtual lab for artificial intelligence controllers based speed control for induction motor

Practical implementation has an important role in engineering education. Practical implementations, however, may not be possible in some situations, such as lack of physical possibilities, the presence of situations that may create risks during implementation, or place-time dependence. So, package programs are developed for the virtual practical implementation experience. On the other hand, these tools may not be flexible and interactive enough for all branches of science. Therefore, in this study a virtual laboratory tool was developed for the speed control of an induction motor fed by a three-level inverter. The user can select proportional-integral, proportional–integral–derivative, fuzzy logic, artificial neural network, and neuro-fuzzy controllers for the speed controller. Different working conditions for the induction motor can be simulated and the outcomes can be observed by the users. The virtual laboratory had a flexible interface and it was written on Microsoft Visual Studio 2015 IDE using C# programming language on Windows Presentation Foundation infrastructure.

THREE-DIMENSIONAL FIGURES ARRAY BUILDING AUTOMATION IN ORIGINAL DATASET USING WINDOWS PRESENTATION FOUNDATION PLATFORM

When storing geometric shapes in the database as a set of numerical values of parameters, the task of constructing their visual representations arises. Visualization of objects on the set parameters is the purpose of this study. As a tool, we propose to use the Windows Presentation Foundation (WPF) platform. The paper considers the objects of three-dimensional graphics and their hierarchy. We describe an approach to constructing an array of shapes in a three-dimensional scene, as a result of which the shapes must be placed in the scene in the required way relative to each other with a given step along all axes. To display the object matrix in the scene area, you can perform a circular operation of building shapes for all data extracted from the database. It is concluded that for the correct construction of individual segments in the relative and General coordinate systems should be the same, as well as the need to select a grid for the construction of an array based on geometric models of figures.

RFID Medical Equipment Tracking System Based on a Location-Based Service Technique

Healthcare is the fastest-growing service sector. Given the critical impact this industry has on human well-being, there is a continuing need to improve the quality of medical services. An RFID system is used to implement an indoor positioning system which tracks medical equipment in medical centers or other healthcare facilities. Develop a front-end platform application system for medical personnel uses. In RFID systems, data collected by and stored in remotely distributed tags are transmitted to readers, providing identification or positioning functions through non-contract bi-directional communication. The front-end platform application system for medical personnel uses was developed using Microsoft Visual Studio 2012, the Windows Presentation Foundation (WPF) is developed in C#, and the interface is developed using XAML. This effectively separates interface development and its background logic, allowing UI designers and app developers to better cooperate and reduce maintenance and updating costs. SQLite is used for database development to ensure cross-platform and multiple language support. XAMPP is used for the Web Server. PEPD RFID provides medical staff with location and inventory information for medical devices and materials, helping staff to find such items quickly and accurately and thus enhancing patient care and hospital service quality. The proposed system allows medical staff to immediately locate and inventory specific medical equipment, thus improving work performance, service quality and inventory control.

P127 Transfer of flow cytometric crossmatch data from the BD facscanto II into the histotrac database

Aim Flow Cytometric Crossmatch (XM) is critical to the work-up of renal transplant patients. The complexity of the data acquired in XM testing and the amount of manual data entry into reporting software is a challenge. Testing personnel are under pressure to provide timely, accurate, and reliable results. The development of the HistoTrac Canto Utility has enabled fast and accurate calculation and the automated transfer of data. Methods The HistoTrac Canto Utility was developed by the TriCore IT team to reduce data entry errors when transferring data from the BD FACSCanto II to HistoTrac. The utility was developed using the computer language C#, and built on a Windows Presentation Foundation app foundation. The Utility imports a CSV file from the FACSCanto and generates an XLS file that contains all laboratory established control ranges and standard deviations (SD) which can be updated as needed. The Utility performs the Calculations by picking the lowest MDCF value of the Negative controls, places it in the “Neg used for Calculation” cell, and generates the MCS value and shift results for each patient serum and controls. If all Negative controls are below the lab defined negative range, the lowest patient sample is used for calculations, and the XM is given an assessment of “ ERROR ” instead of “ VALID. ” Assessment of XM validity is dependent on the Positive control MCS value, which must be higher than 3 SD for both T and B cell in order for the XM to be “ VALID ”. The Utility will use the higher MDCF values (T and B cell) of the patient duplicates for calculations. Currently T cell duplicates must be within 6% and B cell within 10% of each other. If duplicates are not within these ranges, an assessment of “ BAD ” is made. The XLS is then imported into Histotrac using the “Histotrac Interface Canto Utility”. Results The HistoTrac Canto Utility aids in assessing XM results by selecting the lowest negative control and using that data to calculate the shifts. Using the established Control Ranges and SDs, the Utility is able to assign a result and assess quality assurance metrics such as sample duplication, negative control evaluation and XM validity. Conclusions The HistoTrac Canto Utility eliminates manual data entry errors in the shift calculations, and reduces testing turnaround times.