ACS Applied Computer Science

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Applied Computer Science Volume 18, Number 1, 2022

STRENGTH ANALYSIS OF A PROTOTYPE COMPOSITE HELICOPTER ROTOR BLADE SPAR

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This paper investigates the strenght of a conceptual main rotor blade dedicated to an unmanned helicopter. The blade is made of smart materials in order to optimize the efficiency of the aircraft by increasing its aerodynamic performance. This purpose was achieved by performing a series of strength calculations for the blade of a prototype main rotor used in an unmanned helicopter. The calculations were done with the Finite Element Method (FEM) and software like CAE (Computer-Aided Engineering) which uses advanced techniques of computer modeling of load in composite structures. Our analysis included CAD (Computer-Aided Design) modeling the rotor blade, importing the solid model into the CAE software, defining the simulation boundary conditions and performing strength calculations of the blade spar for selected materials used in aviation, i.e. fiberglass and carbon fiber laminate. This paper presents the results and analysis of the numerical calculations.

  • APA 7th style
Kliza, R., Ścisłowski, K., Siadkowska, K., Padyjasek, J., & Wendeker, M. (2022). Strength analysis of a prototype composite helicopter rotor blade spar. Applied Computer Science, 18(1), 5-19. https://doi.org/10.23743/acs-2022-01
  • Chicago style
Kliza, Rafał, Karol Ścisłowski, Ksenia Siadkowska, Jacek Padyjasek, and Mirosław Wendeker. "Strength Analysis of a Prototype Composite Helicopter Rotor Blade Spar." Applied Computer Science 18, no. 1 (2022): 5-19.
  • IEEE style
R. Kliza, K. Ścisłowski, K. Siadkowska, J. Padyjasek, and M. Wendeker, "Strength analysis of a prototype composite helicopter rotor blade spar," Applied Computer Science, vol. 18, no. 1, pp. 5-19, 2022, doi: 10.23743/acs-2022-01.
  • Vancouver style
Kliza R, Ścisłowski K, Siadkowska K, Padyjasek J, Wendeker M. Strength analysis of a prototype composite helicopter rotor blade spar. Applied Computer Science. 2022;18(1):5-19.

HISTOPATHOLOGY IMAGE CLASSIFICATION USING HYBRID PARALLEL STRUCTURED DEEP-CNN MODELS

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The healthcare industry is one of the many out there that could majorly benefit from advancement in the technology it utilizes. Artificial intelligence (AI) technologies are especially integral and specifically deep learning (DL); a highly useful data-driven technology. It is applied in a variety of different methods but it mainly depends on the structure of the available data. However, with varying applications, this technology produces data in different contexts with particular connotations. Reports which are the images of scans play a great role in identifying the existence of the disease in a patient. Further, the automation in processing these images using technology like CNN-based models makes it highly efficient in reducing human errors otherwise resulting in large data. Hence this study presents a hybrid deep learning architecture to classify the histopathology images to identify the presence of cancer in a patient. Further, the proposed models are parallelized using the TensorFlow-GPU framework to accelerate the training of these deep CNN (Convolution Neural Networks) architectures. This study uses the transfer learning technique during training and early stopping criteria are used to avoid overfitting during the training phase. these models use LSTM parallel layer imposed in the model to experiment with four considered architectures such as MobileNet, VGG16, and ResNet with 101 and 152 layers. The experimental results produced by these hybrid models show that the capability of Hybrid ResNet101 and Hybrid ResNet152 architectures are highly suitable with an accuracy of 90% and 92%. Finally, this study concludes that the proposed Hybrid ResNet-152 architecture is highly efficient in classifying the histopathology images. The proposed study has conducted a well-focused and detailed experimental study which will further help researchers to understand the deep CNN architectures to be applied in application development.

  • APA 7th style
Dsouza, K. J., & Ansari, Z. A. (2022). Histopathology image classification using hybrid parallel structured deep-CNN models. Applied Computer Science, 18(1), 20-36. https://doi.org/10.23743/acs-2022-02
  • Chicago style
Dsouza, Kevin Joy, and Zahid Ahmed Ansari. "Histopathology Image Classification Using Hybrid Parallel Structured Deep-Cnn Models." Applied Computer Science 18, no. 1 (2022): 20-36.
  • IEEE style
K. J. Dsouza and Z. A. Ansari, "Histopathology image classification using hybrid parallel structured deep-CNN models," Applied Computer Science, vol. 18, no. 1, pp. 20-36, 2022, doi: 10.23743/acs-2022-02.
  • Vancouver style
Dsouza KJ, Ansari ZA. Histopathology image classification using hybrid parallel structured deep-CNN models. Applied Computer Science. 2022;18(1):20-36.

A METHOD OF VERIFYING THE ROBOT'S TRAJECTORY FOR GOALS WITH A SHARED WORKSPACE

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The latest market research (Fanuc Polska 2019) shows that the robotization of the Polish industry is accelerating. More and more companies are investing in robotic production lines, which enable greater efficiency of implemented processes and reduce labour costs. The article presents the possibilities of using virtual reality (VR) for behavioural analysis in open robotic systems with a shared workspace. The aim of the article is to develop a method of verification of programmed movements of an industrial robot in terms of safety and efficiency in systems with a shared workspace. The method of the robot program verification on the digital model of the working cell made in VR will be checked. The obtained research results indicate a great potential of this method in industrial applications as well as for educational purposes.

  • APA 7th style
Anczarski, J., Bochen, A., Głąb, M., Jachowicz, M., Caban, J., & Cechowicz, R. (2022). A method of verifying the robot's trajectory for goals with a shared workspace. Applied Computer Science, 18(1), 37-44. https://doi.org/10.23743/acs-2022-03
  • Chicago style
Anczarski, Jakub, Adrian Bochen, Marcin Głąb, Mikołaj Jachowicz, Jacek Caban, and Radosław Cechowicz. "A Method of Verifying the Robot's Trajectory for Goals with a Shared Workspace." Applied Computer Science 18, no. 1 (2022): 37-44.
  • IEEE style
J. Anczarski, A. Bochen, M. Głąb, M. Jachowicz, J. Caban, and R. Cechowicz, "A method of verifying the robot's trajectory for goals with a shared workspace," Applied Computer Science, vol. 18, no. 1, pp. 37-44, 2022, doi: 10.23743/acs-2022-03.
  • Vancouver style
Anczarski J, Bochen A, Głąb M, Jachowicz M, Caban J, Cechowicz R. A method of verifying the robot's trajectory for goals with a shared workspace. Applied Computer Science. 2022;18(1):37-44.

DETECTION AND CLASSIFICATION OF VEGETATION AREAS FROM RED AND NEAR INFRARED BANDS OF LANDSAT-8 OPTICAL SATELLITE IMAGE

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Detection and classification of vegetation is a crucial technical task in the management of natural resources since vegetation serves as a foundation for all living things and has a significant impact on climate change such as impacting terrestrial carbon dioxide (CO2). Traditional approaches for acquiring vegetation covers such as field surveys, map interpretation, collateral and data analysis are ineffective as they are time consuming and expensive.  In this paper vegetation regions are automatically detected by applying simple but effective vegetation indices Normalized Difference Vegetation Index (NDVI) and Soil Adjusted Vegetation Index (SAVI) on red(R) and near infrared (NIR) bands of Landsat-8 satellite image. Remote sensing technology makes it possible to analyze vegetation cover across wide areas in a cost-effective manner. Using remotely sensed images, the mapping of vegetation requires a number of factors, techniques, and methodologies. The rapid improvement of remote sensing technologies broadens possibilities for image sources making remotely sensed images more accessible. The dataset used in this paper is the R and NIR bands of Level-1 Tier 1 Landsat-8 optical remote sensing image acquired on 6th September 2013, is processed and made available to users on 2nd May 2017. The pre-processing involving sub-setting operation is performed using the ERDAS Imagine tool on R and NIR bands of Landsat-8 image. The NDVI and SAVI are utilized to extract vegetation features automatically by using python language. Finally by establishing a threshold, vegetation cover of the research area is detected and then classified.

  • APA 7th style
Nallapareddy, A. (2022). Detection and classification of vegetation areas from red and near infrared bands of Landsat-8 optical satellite image. Applied Computer Science, 18(1), 45-55. https://doi.org/10.23743/acs-2022-04
  • Chicago style
Nallapareddy, Anusha. "Detection and Classification of Vegetation Areas from Red and near Infrared Bands of Landsat-8 Optical Satellite Image." Applied Computer Science 18, no. 1 (2022): 45-55.
  • IEEE style
A. Nallapareddy, "Detection and classification of vegetation areas from red and near infrared bands of Landsat-8 optical satellite image," Applied Computer Science, vol. 18, no. 1, pp. 45-55, 2022, doi: 10.23743/acs-2022-04.
  • Vancouver style
Nallapareddy A. Detection and classification of vegetation areas from red and near infrared bands of Landsat-8 optical satellite image. Applied Computer Science. 2022;18(1):45-55.

ANALYSIS OF THE EFFECT OF PROJECTILE IMPACT ANGLE ON THE PUNCTURE OF A STEEL PLATE USING THE FINITE ELEMENT METHOD IN ABAQUS SOFTWARE

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This paper deals with the punctureability of a steel plate by a projectile at different angles of attack. The effect of the projectile angle on the force required to penetrate a plate made of A36 steel is presented using Finite Element Method calculation software. Using Abaqus software, a dynamic model of a projectile striking a plate was modelled and the force required to penetrate a 5 mm thick steel plate was presented. The introduction gives an overview of the genesis of the topic and a brief historical background. The chapter on numerical analysis presents the numerical model used and how the simulation was modelled. In the conclusions, a summary of the results was formulated and conclusions were drawn regarding the observations and insights of the analysis. The force required to penetrate the plate was observed to increase with increasing projectile angle of attack and it was found that, as the angle of the plate increased, the force required to penetrate increased. 

  • APA 7th style
Rosłaniec, K. (2022). Analysis of the effect of projectile impact angle on the puncture of a steel plate using the Finite Element Method in Abaqus software. Applied Computer Science, 18(1), 56-69. https://doi.org/10.23743/acs-2022-05
  • Chicago style
Rosłaniec, Kuba. "Analysis of the Effect of Projectile Impact Angle on the Puncture of a Steel Plate Using the Finite Element Method in Abaqus Software." Applied Computer Science 18, no. 1 (2022): 56-69.
  • IEEE style
K. Rosłaniec, "Analysis of the effect of projectile impact angle on the puncture of a steel plate using the Finite Element Method in Abaqus software," Applied Computer Science, vol. 18, no. 1, pp. 56-69, 2022, doi: 10.23743/acs-2022-05.
  • Vancouver style
Rosłaniec K. Analysis of the effect of projectile impact angle on the puncture of a steel plate using the Finite Element Method in Abaqus software. Applied Computer Science. 2022;18(1):56-69.

IMPROVING CORONARY HEART DISEASE PREDICTION BY OUTLIER ELIMINATION

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Nowadays, heart disease is the major cause of deaths globally. According to a survey conducted by the World Health Organization, almost 18 million people die of heart diseases (or cardiovascular diseases) every day. So, there should be a system for early detection and prevention of heart disease. Detection of heart disease mostly depends on the huge pathological and clinical data that is quite complex. So, researchers and other medical professionals are showing keen interest in accurate prediction of heart disease.  Heart disease is a general term for a large number of medical conditions related to heart and one of them is the coronary heart disease (CHD). Coronary heart disease is caused by the amassing of plaque on the artery walls. In this paper, various machine learning base and ensemble classifiers have been applied on heart disease dataset for efficient prediction of coronary heart disease. Various machine learning classifiers that have been employed include k-nearest neighbor, multilayer perceptron, multinomial naïve bayes, logistic regression, decision tree, random forest and support vector machine classifiers. Ensemble classifiers that have been used include majority voting, weighted average, bagging and boosting classifiers. The dataset used in this study is obtained from the Framingham Heart Study which is a long-term, ongoing cardiovascular study of people from the Framingham city in Massachusetts, USA. To evaluate the performance of the classifiers, various evaluation metrics including accuracy, precision, recall and f1 score have been used. According to our results, the best accuracy was achieved by logistic regression, random forest, majority voting, weighted average and bagging classifiers but the highest accuracy among these was achieved using weighted average ensemble classifier. 

  • APA 7th style
Riyaz, L., Butt, M. A., & Zaman, M. (2022). Improving coronary heart disease prediction by outlier elimination. Applied Computer Science, 18(1), 70-88. https://doi.org/10.23743/acs-2022-06
  • Chicago style
Riyaz, Lubna, Muheet Ahmed Butt, and Majid Zaman. "Improving Coronary Heart Disease Prediction by Outlier Elimination." Applied Computer Science 18, no. 1 (2022): 70-88.
  • IEEE style
L. Riyaz, M. A. Butt, and M. Zaman, "Improving coronary heart disease prediction by outlier elimination," Applied Computer Science, vol. 18, no. 1, pp. 70-88, 2022, doi: 10.23743/acs-2022-06.
  • Vancouver style
Riyaz L, Butt MA, Zaman M. Improving coronary heart disease prediction by outlier elimination. Applied Computer Science. 2022;18(1):70-88.

DETECTION OF SOURCE CODE IN INTERNET TEXTS USING AUTOMATICALLY GENERATED MACHINE LEARNING MODELS

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In the paper, the authors are presenting the outcome of web scraping software allowing for the automated classification of source code. The software system was prepared for a discussion forum for software developers to find fragments of source code that were published without marking them as code snippets. The analyzer software is using a Machine Learning binary classification model for differentiating between a programming language source code and highly technical text about software. The analyzer model was prepared using the AutoML subsystem without human intervention and fine-tuning and its accuracy in a described problem exceeds 95%. The analyzer based on the automatically generated model has been deployed and after the first year of continuous operation, its False Positive Rate is less than 3%. The similar process may be introduced in document management in software development process, where automatic tagging and search for code or pseudo-code may be useful for archiving purposes.

  • APA 7th style
Badurowicz, M. (2022). Detection of source code in internet texts using automatically generated machine learning models. Applied Computer Science, 18(1), 89-98. https://doi.org/10.23743/acs-2022-07
  • Chicago style
Badurowicz, Marcin. "Detection of Source Code in Internet Texts Using Automatically Generated Machine Learning Models." Applied Computer Science 18, no. 1 (2022): 89-98.
  • IEEE style
M. Badurowicz, "Detection of source code in internet texts using automatically generated machine learning models," Applied Computer Science, vol. 18, no. 1, pp. 89-98, 2022, doi: 10.23743/acs-2022-07.
  • Vancouver style
Badurowicz M. Detection of source code in internet texts using automatically generated machine learning models. Applied Computer Science. 2022;18(1):89-98.

BREAST CANCER CAD SYSTEM BY USING TRANSFER LEARNING AND ENHANCED ROI

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Computer systems are being employed in specialized professions such as medical diagnosis to alleviate some of the costs and to improve dependability and scalability. This paper implements a computer aided breast cancer diagnosis system. It utilizes the publicly available mini MIAS mammography image dataset. Images are preprocessed to clean isolate breast tissue region. Extracted regions are used to adjust and verify a pretrained convolutional deep neural network, the GoogLeNet. The implemented model shows good performance results compared to other published works with accuracy of 86.6%, sensitivity of 75% and specificity of 88.9%. 

  • APA 7th style
Al-Huseiny, M. S., & Sajit, A. S. (2022). Breast cancer CAD system by using transfer learning and enhanced ROI. Applied Computer Science, 18(1), 99-111. https://doi.org/10.23743/acs-2022-08
  • Chicago style
Al-Huseiny, Muayed S, and Ahmed S Sajit. "Breast Cancer Cad System by Using Transfer Learning and Enhanced Roi." Applied Computer Science 18, no. 1 (2022): 99-111.
  • IEEE style
M. S. Al-Huseiny and A. S. Sajit, "Breast cancer CAD system by using transfer learning and enhanced ROI," Applied Computer Science, vol. 18, no. 1, pp. 99-111, 2022, doi: 10.23743/acs-2022-08.
  • Vancouver style
Al-Huseiny MS, Sajit AS. Breast cancer CAD system by using transfer learning and enhanced ROI. Applied Computer Science. 2022;18(1):99-111.