Application Builder Research Articles

Reconstructing the Pseudo-2-Dimensional (p2D) Model in Comsol Multiphysics Using Mathematical Interfaces

The classic ‘pseudo-2-dimensional’ (p2D) model of Newman and co-workers (also known as the DFN model), with its different efficient implementations, is the state-of-the-art physics-based electrochemical model for lithium-ion batteries. COMSOL Multiphysics (COMSOL) is a popular modeling software for multiphysics simulations, and its Battery Design Module for Li-ion batteries is widely used in the battery modeling community. This work presents a step-wise model development for reconstructing the detailed p2D model equations. This includes variable model parameters and weak-form implementation for the solid-phase diffusion, eliminating the need for non-local couplings and approximations for modeling the pseudo radial-dimension in the solid-phase.To model and understand the effect of capacity degradation on lithium-ion cells, the battery models in COMSOL need to incorporate additional degradation mechanisms. In this work, we have followed the approach of equation-based modeling in COMSOL, which enables us to formulate the p2D model using the mathematical PDE interfaces. This approach provides us with a lot of flexibility in terms of battery degradation model formulation and helps develop a clearer understanding of the p2D model equation in light of the assumptions involved.The steps in the model development involved writing the conservation equations in the generic mathematics interfaces coupled with the additional equations for the degradation mechanisms. The efforts were centered on developing cycling simulations based on Events for practically relevant operating conditions. This custom model was validated against the results from COMSOL’s Battery Interface, in-house codes, and baseline cycle data from the experiments and further developed as a physicochemical degradation model for automotive, large-format Lithium-ion batteries.This equation-based COMSOL model with cycling works without the requirement for Battery Design Module, LiveLink and Application Builder and can be adopted for a variety of electrochemical modeling applications by the electrochemical modeling community.

Effect of DC grounding electrode currents on the corrosion interference behavior of cathodic protection of nearby pipelines

When operating a direct current (DC) transmission grounding electrode in single-pole return ground mode, transient currents traverse the soil, generating stray currents. These currents can intensify the corrosion of long-distance transmission pipelines near the grounding electrode, subsequently altering the pipeline’s cathodic protection potential. Previous investigations into the interference of grounding electrodes on pipeline cathodic protection have overlooked the cathodic protection systems themselves. Addressing this gap, we integrated COMSOL’s electrochemical module with its AC/DC module. To corroborate the accuracy of our COMSOL-based models, we devised specific validation experiments. Additionally, we crafted a COMSOL application builder interface to streamline computations. Consequently, we derived a multi-regression function to express the cathodic protection potential of the pipeline under varied factors and executed a regression tree classification for soil resistivity. To pinpoint optimal corrosion protection for pipelines, we simulated the cathodic protection of segmentally isolated pipelines, determining that potential excursions can be notably mitigated. This research offers insights into both disturbance evaluation and protective strategies for DC transmission and pipelines.

Development of a Treatment Planning Framework for Laser Interstitial Thermal Therapy (LITT).

Develop a treatment planning framework for neurosurgeons treating high-grade gliomas with LITT to minimize the learning curve and improve tumor thermal dose coverage. Deidentified patient images were segmented using the image segmentation software Materialize MIMICS©. Segmented images were imported into the commercial finite element analysis (FEA) software COMSOL Multiphysics© to perform bioheat transfer simulations. The laser probe was modeled as a cylindrical object with radius 0.7 mm and length 100 mm, with a constant beam diameter. A modeled laser probe was placed in the tumor in accordance with patient specific patient magnetic resonance temperature imaging (MRTi) data. The laser energy was modeled as a deposited beam heat source in the FEA software. Penne's bioheat equation was used to model heat transfer in brain tissue. The cerebrospinal fluid (CSF) was modeled as a solid with convectively enhanced conductivity to capture heat sink effects. In this study, thermal damage-dependent blood perfusion was assessed. Pulsed laser heating was modeled based on patient treatment logs. The stationary heat source and pullback heat source techniques were modeled to compare the calculated tissue damage. The developed bioheat transfer model was compared to MRTi data obtained from a laser log during LITT procedures. The application builder module in COMSOL Multiphysics© was utilized to create a Graphical User Interface (GUI) for the treatment planning framework. Simulations predicted increased thermal damage (10-15%) in the tumor for the pullback heat source approach compared with the stationary heat source. The model-predicted temperature profiles followed trends similar to those of the MRTi data. Simulations predicted partial tissue ablation in tumors proximal to the CSF ventricle. A mobile platform-based GUI for bioheat transfer simulation was developed to aid neurosurgeons in conveniently varying the simulation parameters according to a patient-specific treatment plan. The convective effects of the CSF should be modeled with heat sink effects for accurate LITT treatment planning.

RANCANG BANGUN APLIKASI SISTEM INFORMASI CARWASH & AUTOCARE BERBASIS ANDROID PADA MAHKOTA MOTOR JAYA MAKMUR

Mahkota Motor Jaya Makmur Carwash & Autocare is located in Cangkringmalang, Kec. Beji, Pasuruan, East Java is one of the places for vehicle carwash and autocare services for vehicle needs whose role is to help solve problems experienced by damage to the user's vehicle. In carrying out daily community activities, vehicle users do not have time to wash and perform maintenance on the vehicle, the services at Mahkota Motor Jaya Makmur Carwash & Autocare are expected to help users, the service in this place has a function to provide comfort , satisfaction or a sense of security for each customer because the process in car washing using Hydraulic (lifting the car) is used so that the bottom of the car is easy to clean. One way to develop a business from this place is to create an Android-Based Carwash and Autocare Information System application, to provide more convenience for users to choose services in the application. This application was successfully built with the JavaScript programming language as an android application builder. The React Native framework is used to display a selection of services available in the app and various information about these places.

SISTEM INFORMASI UMKM KAMPUNG GERABAH DESA PAGELARAN BERBASIS ANDROID

The development of information and communication technology marked by the internet has brought society into a new era. Information and communication technology can solve problems and reduce the burden on SMEs. On the other hand, based on data from the MSME organization of the Pottery Village, Pagelaran Village which consists of 25 pottery craftsmen and there are 24 pottery craftsmen who do not have a desktop or laptop computer, 22 of all craftsmen use mobile phones based on the Android operating system. For the method of data collection is done by means of interviews, literature studies and observation. Utilization of IT can be done by MSME actors to provide complete information about products, manufacturing locations, product descriptions, and features for ordering MSME products that can be used as a means to promote and introduce MSME centers in the Pagelaran Village. With the application of the MSME information system, Kampung Gerabah now has media for promotion and marketing of handicraft products and it is hoped that it can help improve the economy of the residents of the pottery village of Pagelaran Village. This application was successfully built using the Java programming language and PHP as an android application builder. The Codeigniter and Android Native frameworks are used to display product catalogs, craftsman information, customer information, so that it can make it easier for application users to get information. In this application, the Raja Ongkir API is used to calculate the cost of product delivery costs. As for the navigation features in this application using the Google Maps API. suggestions for further application development, namely in terms of presenting information to users and developing new features that can improve the application.

Quality Classification of Palm Oil Products Using Naïve Bayes Method

Indonesia is a country that can produce the highest palm oil in the world. The islands of Sumatra and Kalimantan are the islands that have the largest plantations, especially oil palm in Indonesia. Riau Province which is located on the island of Sumatra can produce the highest oil palm on the island of Sumatra. Quality is an important component in business continuity in the palm oil industry. The quality of the crude palm oil products of a company in the Kerumutan sub-district, Pelalawan district, Riau, depends on the content of the final processing product. The content consists of impurities in crude palm oil (CPO), CPO moisture content, free fatty acid CPO levels, determination of bleachability index CPO, CPO carotene, dirt kernel, moisture kernel, and broken kernel. The final quality of palm oil products is determined from the combined results of CPO quality and kernel quality. Good quality raw materials will affect the selling price of these raw materials to produce a good quality final product. Determine the quality of palm oil products poses a problem in terms of time because they must be checked one by one through processing in the laboratory. Application builder who can determine the quality classification of palm oil products is the purpose of this research. This application is expected to help labor officers in the process of classifying the quality of crude palm oil products more quickly, precisely, and accurately. This study uses the Naïve Bayes algorithm because it requires smaller amounts of training data in the data classification process. The accuracy level of the Naïve Bayes method in determining the quality of palm oil products is 82.05%.

Development of a control path VHDL code generator for hardware development

The Very High-Speed Integration Circuit HDL (VHDL) is widely used to implement digital electronic systems. The VHDL language can be difficult to learn, so it is necessary to simplify and speed up the process of implementing digital electronic components through a hardware description with a minimal understanding of the VHDL language. This paper entails the design and development of a Graphical User Interface (GUI) capable of generating VHDL code for ControlPaths using specified state transition tables and state diagrams. This application was created using the Matrix Laboratory (MATLAB). Application Builder as the development platform. After development, the system went through unit testing and integration testing, after which acceptance testing was carried out. The results of the acceptance tests showed that the software is very effective in quickly generating VHDL code for ControlPaths.

SolCelSim: simulation of charge transport in solar cells developed in Comsol Application Builder

ABSTRACT A user-friendly software SolCelSim is introduced for the simulation of the charge transport in a solar cell with an arbitrary number of layers. Various recombination mechanisms, types of transport through internal layer interfaces and conditions at the contacts can be chosen. A wide range of the measurement methods available for the solar cells such as photocurrent-voltage, incident photon-to-current efficiency and impedance spectroscopy can be simulated with SolCelSim. Any parameter of the layers can be swept automatically during the simulation in order to obtain the dependence of the simulation results on the particular parameter values. Import/export buttons for the experimental/simulated data are provided to facilitate comparison between the measurements and simulations. The application provides a convenient entry-point for the experimentally oriented researchers in order to execute the drift-diffusion simulation of their solar cell devices. Furthermore, SolCelSim provides an example of advanced use of Comsol Application Builder in the development of complex Comsol applications with dynamic geometry, import/export and error handling features.

Analysis of the Hungarian Hydrocarbon Industry’s Accidents and their Demonstration with GIS

Abstract From its beginning until today the Hungarian hydrocarbon industry has suffered more than seventy bigger accidents where intervention of the fire service and thorough examination was required. In the article the author presents the short analysis of accidents that were collected, systemized, and entered into database during the research, and their integration into the Geographic Information System (GIS). Based on the finished database, with the extended list of the locations’ GPS coordinates, the accidents will be entered into the ArcMap application. The publication of the accidents will be done with the help of Arcgis Viewer for Flex – Application Builder program. Following the GIS placement of accidents, testing, drawing conclusions and summarization are the main goals. The next step will be the preparation for assigning the database to the Disaster Management Decision Support Geographic Information System. Following the international publication, the long-term goal is the connection of each country’s files of dangerous industrial activities that were collected by researchers into one common database.

Mobile Tools for Community Scientists

Mobile Tools for Community Scientists

Computer Application for Simulation of Temperature Distribution Inside the Room

The paper deals with computer testing of the temperature distribution in buildings by using COMSOL Multiphysics software. It is devoted to a description of a computer application created in the Application Builder user interface for simulation of the temperature distribution in a room heated by two heat sources. The application allows you to change geometric dimensions of all elements of the studied model and their spatial distribution, as well as a choice of physical properties needed to access the distribution of temperature in the room depending on the ambient temperature and the heat input of the considered sources. Main functions of the application are presented by simulation of cyclic heating and cooling of the tested room.

Methodology of development of a Delirium clinical application and initial feasibility results.

Delirium is a highly prevalent condition in the hospital settings, with prevalence rates ranging from 6% to 56%, based on previous studies. A recent review provides evidence for the need of practice tools at the point of care to increase impact and to improve patient outcomes related to delirium care. The major challenge is to help maintain the skill-sets required by clinicians and allied healthcare workers over time. There have been massive advancements in smartphone technologies, as well as several papers being published recently about how clinicians could be application developers. The following study will serve to illustrate how the authors made use of the latest advances in application creation technologies in designing a Delirium education application, containing protocols that are appropriate to their healthcare setting. The study in itself will serve as a pilot project aimed at implementing smartphone technologies in delirium education, to determine its feasibility as well as user's perspectives towards such an implementation. The Delirium UHN Application was developed between the months of February 2013 to September 2014. Making use of the methodologies shared by Zhang MWB et al., the authors embarked on the development of the web-based and the native application. The web-based application was developed using HTML5 programming language and with the aid of an online application builder. Psychiatry residents and allied health professionals, at the University of Toronto were recruited to help evaluate the pilot web-based version of the application. Since the introduction of the web-based application during the delirium awareness week, there has been a total of 1165 unique access to the online web-based application. Of significance, there is a shift in the confidence levels of the participants with regards to the management of delirium after using the application. The majority of the participants (44.0%) reported being moderately comfortable with managing delirium prior to the usage of the application, but this changed after the implementation of the application, with 39.0% reporting being very confident and 44.0% being extremely confident about managing delirium after using the application. 69.0% of the participants also perceived the smartphone application to be of use to their clinical care for delirious patients. This study is one of the first to demonstrate the potential usage of smartphone innovations in delirium education. The current study demonstrated the added feasibility of smartphone applications, and demonstrated that users perceived that they are more abled with managing delirium after the usage of the smartphone application.

Focus on software and semiconductor equipment

Focus on software and semiconductor equipment

Comsol application builder and application server: A review

A powerful numerical analysis tool now comes with the ability to create apps. A powerful numerical analysis tool now comes with the ability to create apps.

S2020205 偏微分方程式モデリングソフトウェアによる工学教育の変革の可能性

In order to innovate engineering education, at first this paper proposes a new concept of ACE (Advanced Conceptual Engineer) with difference and repetition activity. Secondly we propose the use of partial differential equation modelling software, COMSOL Multiphysics, for the platform of emergence of ACE in the both sides of a school teacher and the learner. It seems that this software has a sufficient multiphysics analysis functions for the innovation as well as remote web function such as Application builder and COMSOL server.

Methodology of developing a smartphone application for crisis research and its clinical application.

Recent advancement in Internet based technologies have resulted in the growth of a sub-specialized field, termed as "Infodemiology" and "Infoveillance". Infoveillence refers to the collation of infodemiology measures for the purpose of surveillance and trending. Previous research has only demonstrated the research potential of Web 2.0 medium in collation of data in crisis situation. The objectives for the current study are to demonstrate the methodology of implementation of a smartphone-based application for dissemination and collation of information during a crisis situation. The Haze Smartphone application was developed using an online application builder and using HTML5 as the core programming language. A five-phase developmental method including a) formulation of user requirements, b) system design, c) system development, d) system evaluation and finally e) system application and implementation were adopted. The smartphone application was deployed during a one-week period via a self-sponsored Facebook post and via direct dissemination of the web-links by emails. A total of 298 respondents took part in the survey within the application. Most of them were between the ages of 20- to 29-years old and had a university education. More individuals preferred the option of accessing and providing feedback to a survey on physical and psychological wellbeing via direct access to a Web-based questionnaire. In addition, the participants reported a mean number of 4.03 physical symptoms (SD 2.6). The total Impact of Event Scale-Revised (IES-R) score was 18.47 (SD 11.69), which indicated that the study population did experience psychological stress but not posttraumatic stress disorder. The perceived dangerous Pollutant Standards Index (PSI) level and the number of physical symptoms were associated with higher IES-R Score (P<0.05). This study demonstrates how a smartphone application could potentially be used to acquire research data in a crisis situation. However, it is crucial for future research to further evaluate its effectiveness in a crisis situation.

Experience in using FlexCtrl SCADA for accelerator automation

The programmed component of the automatic control of accelerators on the basis of licensed software packages (FlexCtrl SCADA, Photon Application Builder, and Cogent DataHub) and an additionally developed library of classes (related to visual programming with regard to functional capabilities and which all together represent an integrated media for producing the automation system) is described in the article. The number of features of the media components and the number of the components themselves can be increased since the developed media is characterized as open.

Restoration of interferometric images

The Software Package AIRY (Astronomical Image Restoration in interferometrY) described in this paper is designed for simulation and/or multiple deconvolution of interferometric images. It was conceived for applications to the Large Binocular Telescope (LBT), but can also be used for future interferometers of the same class. AIRY is modular, IDL-based, and designed to be used together with the CAOS (Code for Adaptive Optics Systems) Application Builder. As concerns multiple deconvolution AIRY includes an implementation of the method OS-EM (Ordered Subsets-Expectation Maximization) which is an accelerated version of the Lucy-Richardson method. After a description of the structure and modules of the software package, its use is illustrated with a few applications. In particular the intrinsic performance of the implemented restoration method is explored in the case of binary stars of different angular separations and magnitude differences, as well as in the case of a diffuse object. The possibility of obtaining super-resolved images of unresolved binary stars is also demonstrated.

Changing class behaviors at run-time in MRP systems

This paper presents an architecture that can be used to develop and maintain class behaviors in object-oriented material requirements planning (MRP) systems at run-time. The architecture provides this capability through a user-interface, and does not require knowledge of any programming language. The architecture is based on the concept of software reuse, it utilizes a library of fine-grained pre-compiled objects to develop and maintain class behaviors. The architecture is a dynamic-object application builder implemented on top of an object-oriented run-time environment.

Case Tools for Process Control and Instrumentation Applications Development

The paper presents two integrated development environments for process control and instrumentation programs designed for developing software for microsystems with microcontrollers from the 8051 family, one, and for real-time, multi-tasking systems, the other. The CASE tools include standard development facilities and also specific ones: remote loading and debugging in a target computer, assembly language code generation for simple for the first program and a graphical editor for data flow diagrams, an application builder in background set for a specific real-time executive and evaluation tools for the second one. The presented software development instruments strongly increase the productivity of new applications development.