Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Kumar, G." wg kryterium: Autor

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 57
Tytuł:
Swarm Intelligence-based Partitioned Recovery in Wireless Sensor Networks
Autorzy:
Kumar, G.
Ranga, V.
Powiązania:
https://bibliotekanauki.pl/articles/307759.pdf
Data publikacji:
2018
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
connectivity restoration
meta-heuristics
relay node placement
wireless sensor networks
Opis:
The failure rate of sensor nodes in Heterogeneous Wireless Sensor Networks is high due to the use of low battery-powered sensor nodes in a hostile environment. Networks of this kind become non-operational and turn into disjoint segmented networks due to large-scale failures of sensor nodes. This may require the placement of additional highpower relay nodes. In this paper, we propose a network partition recovery solution called Grey Wolf, which is an optimizer algorithm for repairing segmented heterogeneous wireless sensor networks. The proposed solution provides not only strong bi-connectivity in the damaged area, but also distributes traffic load among the multiple deployed nodes to enhance the repaired network’s lifetime. The experiment results show that the Grey Wolf algorithm offers a considerable performance advantage over other state-of-the-art approaches.
Źródło:
Journal of Telecommunications and Information Technology; 2018, 3; 70-81
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of process parameters of friction stir welded AA5082-AA7075 butt joints using resonance fatigue properties
Autorzy:
Kumar, G.
Kumar, R.
Powiązania:
https://bibliotekanauki.pl/articles/200299.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
friction stir welding
dissimilar Al welding
resonance fatigue analysis
fracture surface analysis
ANOVA
Opis:
In this work, experiments were carried out to quantify the behaviour of friction stir welded (FSW) AA5082-AA7075 butt joints under tensile loading and completely reversed fatigue loading. Different samples were prepared to identify optimum tool rotational and travel speeds to produce FSW AA5082-AA7075 butt joints with the maximum fatigue life. ANOVA was performed, which confirmed that both tool speed nad tool rotation speed affect the tensile strength of the weld. The samples exhibit a considerable difference in their fatigue life and tensile strenght. This difference can be accounted to the presence of welding defects such as surface defects and porosity. S-N curve plotted for the sample shows a significantly high fatigue life at the lower stress ranges. Fracture surfaces were also analysed under scanning electron microscope (SEM). Study of the fracture surface of the sample that failed under fatigue loading showed that the surface was mainly divided in two zones. The first zone was the area of fatigue crack growth where each stress cycle, slowly and gradually, helped in the growth of crack. The second zone was the region of fast fracture where the crack growth resulted in the failure of the joint instantaneously. The fracture surface study of the sample that failed under tensile loading showed that the mode of failure was ductile in nature.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2020, 68, 1; 99-108
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Doping and Irradiation Dependence of Electrical Conductivity of $Fe^{3+}$ and $Ni^{2+}$ Doped Polyvinyl Alcohol Films
Autorzy:
Vijaya Kumar, G.
Chandramani, R.
Powiązania:
https://bibliotekanauki.pl/articles/1537708.pdf
Data publikacji:
2010-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.55.Ln
72.80.Le
61.80.x
Opis:
PVA and doped PVA films were prepared by solution casting. The Change in electrical conductivity of pure PVA and transition elements $FeCl_3$ and $NiCl_2 \cdot 6H_2O$ doped PVA films with and without γ-irradiation in the temperature range 50-130°C has been investigated using four point probe technique. The dc electrical conductivity increases with increase in dopant concentration, with temperature and γ-irradiation. The results revealed that γ-irradiation enhances the electrical conductivity. The variation of electrical conductivity σ with temperature, before and after irradiation is due to the intermolecular hydrogen bonding between $Fe^{3+}$ with OH group of PVA and $Ni^{2+}$ with OH group of PVA. We found that $Fe^{3+}$ doped PVA films show higher conductivity than $Ni^{2+}$ doped PVA films.
Źródło:
Acta Physica Polonica A; 2010, 117, 6; 917-920
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Adaptive Rider Feedback Artificial Tree Optimization-Based Deep Neuro-Fuzzy Network for Classification of Sentiment Grade
Autorzy:
Jasti, Sireesha
Kumar, G.V.S. Raj
Powiązania:
https://bibliotekanauki.pl/articles/2200961.pdf
Data publikacji:
2023
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
deep learning network
feedback artificial tree
natural language processing (NLP)
rider optimization algorithm
sentiment grade classification
Opis:
Sentiment analysis is an efficient technique for expressing users’ opinions (neutral, negative or positive) regarding specific services or products. One of the important benefits of analyzing sentiment is in appraising the comments that users provide or service providers or services. In this work, a solution known as adaptive rider feedback artificial tree optimization-based deep neuro-fuzzy network (RFATO-based DNFN) is implemented for efficient sentiment grade classification. Here, the input is pre-processed by employing the process of stemming and stop word removal. Then, important factors, e.g. SentiWordNet-based features, such as the mean value, variance, as well as kurtosis, spam word-based features, term frequency-inverse document frequency (TF-IDF) features and emoticon-based features, are extracted. In addition, angular similarity and the decision tree model are employed for grouping the reviewed data into specific sets. Next, the deep neuro-fuzzy network (DNFN) classifier is used to classify the sentiment grade. The proposed adaptive rider feedback artificial tree optimization (A-RFATO) approach is utilized for the training of DNFN. The A-RFATO technique is a combination of the feedback artificial tree (FAT) approach and the rider optimization algorithm (ROA) with an adaptive concept. The effectiveness of the proposed A-RFATO-based DNFN model is evaluated based on such metrics as sensitivity, accuracy, specificity, and precision. The sentiment grade classification method developed achieves better sensitivity, accuracy, specificity, and precision rates when compared with existing approaches based on Large Movie Review Dataset, Datafiniti Product Database, and Amazon reviews.
Źródło:
Journal of Telecommunications and Information Technology; 2023, 1; 37--50
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterization and experimental investigation of TiN micro tubular coil heater using raman spectroscopy
Charakterystyka i badania doświadczalne mikro-grzałek z TiN metodą spektroskopii ramanowskiej
Autorzy:
Sureshkannan, G
Mohan Kumar, G
Saravanan, M. P.
Powiązania:
https://bibliotekanauki.pl/articles/354813.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
micro tubular coil heaters
Raman spectroscopy
thermal profile
mikro cewki
spektroskopia ramanowska
profil termiczny
Opis:
Raman spectroscopy is a commonly used tool in bio-diagnostics and micro sensor technology. Surface-enhanced Raman scattering provides high signal enhancements especially at micro and nanostructured metallic surfaces. Micro tubular coil heaters have been widely investigated because of their extensive applications in PET Preformed Moulds, Hot Runner Nozzles & Bushings and Thin Walled Container Moulds and other Microsystems. This paper describes the characterization, experimental investigation and analysis of Titanium Nitride (TiN) micro tubular coil heater using Raman spectroscopy and Comsol multiphysics. The material characterization was performed using Raman spectrometer and the geometric optimization for the micro tubular coil heater was performed by simulating a wide range of possible geometries using COMSOLTM, a commercial Finite Element Analysis (FEA) package. The characteristic dimensions of the microstructures are varied and the results are discussed and compared to each other. The simulated results of micro tubular heaters having an improved temperature distribution over the sensing area and a higher density of integration is presented in this paper.
Spektroskopia ramanowska jest powszechnie stosowanym narzędziem w bio-diagnostyce i technologii mikroczujnika. Powierzchniowo wzmocniona spektroskopia ramanowska zapewnia wysokie wzmocnienie sygnału zwłaszcza na mikro i nanostrukturalnych powierzchniach metalowych. Mikro-grzałki (mikro cewki) były szeroko badane ze względu na ich szerokie zastosowanie w formowaniu wtryskowym, podgrzewaczach dysz i tulej, i cienkościennych formach i innych mikrosystemach. Artykuł opisuje charakterystykę, badania eksperymentalne i analizę mikro-grzałki rurowej z azotku tytanu (TiN) za pomocą spektroskopii ramanowskiej i oprogramowania COMSOL Multiphysics. Charakterystykę materiału przeprowadzono za pomocą spektrometru Ramana a geometryczna optymalizacje dla mikro-grzałki prowadzono symulując szeroki zakres możliwych geometrii, za pomocą COMSOLTU, komercyjnego pakietu do analizy metodą elementów skończonych. Charakterystyczne wymiary mikrostruktur są zróżnicowane, a wyniki zostały omówione i porównane ze sobą. Symulowane wyniki mikro-cylindrycznych grzejników o ulepszonym rozkładzie temperatur w obszarze wykrywania i większej gęstości integracji zostały przedstawione w niniejszym artykule.
Źródło:
Archives of Metallurgy and Materials; 2013, 58, 2; 641-645
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Molecular Interactions in Binary Organic Liquid Mixtures Containing Ethyl Oleate and Ethanol at 2MHz Frequency
Autorzy:
Manukonda, S.
Kumar, G. P.
Babu, C. P.
Powiązania:
https://bibliotekanauki.pl/articles/412193.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Ethyl Oleate
Ethanol
molecular interactions
adiabatic compressibility
Opis:
Molecular interactions of binary mixtures of Ethanol with a new organic compound Ethyl Oleate are investigated at a constant ultrasonic frequency of 2MHz under the temperature range of 303.15K-318.15K. The effect of mole fraction of Ethyl Oleate on velocity of sound wave and the density and viscosity of binary mixtures at various temperatures were studied. The effects on density (ρ), viscosity (η), adiabatic compressibility (βad), inter molecular free length (Lf) and internal pressure (Пi) also was studied.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2015, 40; 17-23
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A novel revolutionary substantial transformative control technique for solar fed-full bridge converter based energy stabilization for grid connected applications
Autorzy:
Umamaheswari, S.
Karthigaivel, R.
Satheesh Kumar, G.
Vengadachalam, N.
Powiązania:
https://bibliotekanauki.pl/articles/2173656.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
high boost full-bridge converter
battery energy storage system
BESS
revolutionary substantial transformative control technique
RSTC
konwerter pełnomostkowy o wysokim wzmocnieniu
akumulatorowy system magazynowania energii
rewolucyjna technika znaczącej kontroli transformacyjnej
Opis:
Nowadays, there is a need to increase the continuous usage of the power electronic converters like AC-DC, DC–DC, and DC–AC based on various applications like mobile charge controller and telecom base station. Also, for power stability control, these converters are utilized in the renewable energy system (RES). The output cannot be stable for a longer duration due to the inappropriate switching pulse and continued usage of the converter. For resolving the above issues, the soft-switching technique is implemented in the proposed system for controlling both converter and inverter for proper energy stabilization during the continuous operation of devices. The main objective of this work is to improve the solar power system using high voltage gain DC / DC converter. Similarly, an inverter delivers the continuous AC power to the grid system without any fluctuations. The revolutionary substantial transformative control (RSTC) technique has been employed to monitor and control the converters used in this system. The additional advantage of this system is battery-based energy management, which is only utilized under necessary conditions. During the initial stage, RSTC will track the solar power, and it compares with the reference voltage and produces the appropriate pulse to the converter switch. Based on the switching pulse, the full-bridge converter (FBC) will also enhance the DC voltage by providing the constant voltage for the grid-connected inverter system. Secondly, the proposed RSTC controller will be monitoring voltage amplitude and frequency of grid power system. If any variation appears due to source power fluctuation, the controller will recognize it and automatically vary the pulse width modulation (PWM) of an inverter and compensate the grid power. The design analysis and operating approaches of the proposed converter are verified by MATLAB / Simulink 2017b. The performance analysis has been done with various parameters like total harmonics distortion (THD), steady-state error and converter efficiency.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2022, 70, 2; art. no. e140517
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Theoretical evaluation of ultrasonic velocities of binary liquid mixtures of 1-bromopropane in chlorobenzene at 303.15, 308.15, 313.15 and 318.15 K
Autorzy:
Babu, Ch. P.
Kumar, G. P.
Nagarjun, B.
Samatha, K.
Powiązania:
https://bibliotekanauki.pl/articles/412079.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
ultrasonic velocities
molecular interactions
1-bromopropane and chlorobenzene
Opis:
Theoretical velocities of binary liquid mixtures of 1-bromopropane with chlorobenzene at 2 MHz and four different temperatures 303.15, 308.15, 313.15 and 318.15 K, have been evaluated as a function of concentration and temperature. The experimental values are compared with theoretical models of liquid mixtures such as Nomoto, Van Dael-Vangeel, Impedance Relation, Rao’s Specific Velocity Method, Junjie’s relations and Free Length Theory. In the chosen system there is a good agreement between experimental and theoretical values calculated by Nomoto’s theory. The deviation in the variation of U2exp/ U2imx from unity has also been evaluated for explaining the non ideality in the mixtures. The results are explained in terms of intermolecular interactions occurring in these binary liquid mixtures.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 11, 1; 9-17
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
One-step synthesis of highly-biocompatible spherical gold nanoparticles using Artocarpus heterophyllus Lam. (jackfruit) fruit extract and its effect on pathogens
Autorzy:
Basavegowda, N.
Kumar, G.D.
Tyliszczak, B.
Wzorek, Z.
Sobczak-Kupiec, A.
Powiązania:
https://bibliotekanauki.pl/articles/51469.pdf
Data publikacji:
2015
Wydawca:
Instytut Medycyny Wsi
Źródło:
Annals of Agricultural and Environmental Medicine; 2015, 22, 1
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Acoustical studies of binary liquid mixtures of p-chlorotoluene in benzene at different temperatures
Autorzy:
Kumar, G. P.
Babu, Ch. P.
Samatha, K
Jyosthna, A. N.
Showrilu, K.
Powiązania:
https://bibliotekanauki.pl/articles/412275.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
ultrasonic velocity
thermodynamic parameters
p-chlorotoluene
molecular interactions
Opis:
Ultrasonic velocities (U), densities (ρ), and coefficient of viscosities (η) are measured for binary mixtures containing (i) p-chlorotoluene and (ii) benzene at 303.15 K, 308.15 K, 313.15 K and 318.15 K to understand the molecular interaction. Various acoustical parameters such as adiabatic compressibility (βad), free length (Lf), acoustic impedance (Z), free volume (Vf), molar volume (Vm), Rao’s constant (R), Wada’s constant (W) and internal pressure (πi), are calculated from the measured values of U, ρ, and η. The trend in acoustical parameters also substantiates to asses strong molecular interactions.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 10; 25-37
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Unsteady three-dimensional MHD nanofluid flow over a stretching sheet with variable wall thickness and slip effects
Autorzy:
Kumar, G. Vinod
Varma, S. V. K.
Kumar, R. V. M. S. S. K.
Powiązania:
https://bibliotekanauki.pl/articles/265665.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
pole magnetyczne
magnetohydrodynamika
poślizg
unsteady flow
magnetic field
Buongiorno’s model
variable wall thickness sheet
velocity
thermal and solutal slip
Opis:
The stretching sheets with variable thickness may occur in engineering applications more frequently than a flat sheet. Due to its various applications, in the present analysis we considered a three dimensional unsteady MHD nanofluid flow over a stretching sheet with a variable wall thickness in a porous medium. The effects of radiation, viscous dissipation and slip boundary conditions are considered. Buongiorno’s model is incorporated to study the combined effects of thermophoresis and Brownian motion. The dimensionless governing equations are solved by using MATLAB bvp4c package. The impact of various important flow parameters is presented and analysed through graphs and tables. It is interesting to note that all the three boundary layer thicknesses are diminished by slip parameters. Further, the unsteady parameter decreases the hydromagnetic boundary layer thickness.
Źródło:
International Journal of Applied Mechanics and Engineering; 2019, 24, 3; 709-724
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Indirect torque observer-based sensor-less efficient control of bearingless switched reluctance motor using global sliding mode and square currents control method
Autorzy:
Rao, Pulivarthi Nageswara
Devarapalli, Ramesh
Marquez, Fausto Pedro Garcia
Kumar, G. V. Nagesh
Mohammadi-Ivatloo, Behnam
Powiązania:
https://bibliotekanauki.pl/articles/1409027.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
bearingless
global sliding mode
efficient: maintenance
safety
torque ripple
Opis:
The Bearingless Switched Reluctance Motor (BSRM) is a new technology motor, which overcomes the problems of maintenances required associated with mechanical contacts and lubrication of rotor shaft effectively. In addition, it also improves the output power developed and rated speed. Hence, the BSRM can achieve high output power and super high speed with less size and cost. It has a considerable ripple in the net-torque due to its critical non-linearity and the salient pole structures of both stator and rotor poles. The resultant torque ripple, especially in these motors, causes the more vibrations and acoustic noises will affects the levitated rotor safety also. Practically at high-speed operations, the accurate measurement of the rotor position is complicated for conventional mechanical sensors. A new square currents control with global sliding mode control based sensorless torque observer is proposed to minimize the torque ripple and achieve a smooth, robust operation without using any mechanical sensors. The proposed controller is designed based on the error between the reference and measured torque values. The sliding mode torque observer measures the torque from the actual phase voltages, currents, and look-up tables. The simulation model has been modelled to validate the proposed methodology. From the simulation outputs, it is clear that the reduction of torque ripple by the proposed method shows improved than the conventional sliding mode controller. The overall system is more robust to the external disturbances, and it also gets efficient torque profile.
Źródło:
Archives of Control Sciences; 2021, 31, 1; 53-80
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Scrutinization of Joule heating and viscous dissipation on MHD flow and melting heat transfer over a stretching sheet
Autorzy:
Kumar, K. G.
Gireesha, B. J.
Manjunatha, S.
Powiązania:
https://bibliotekanauki.pl/articles/264626.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
metoda numeryczna
dyssypacja lepkości
płyn mikropolarny
Joule heating
viscous dissipation
stretching sheet
micro polar dusty fluid
numerical method
Opis:
The present paper deals with an analysis of the combined effect of Joule heating and viscous dissipation on an MHD boundary layer flow and melting heat transfer of a micro polar fluid over a stretching surface. Governing equations of the problem are transformed into a set of coupled nonlinear ordinary differential equations by applying proper transformations and then they are solved numerically using the RKF-45 method. The method is verified by a comparison with the established results with limiting solution. The influence of the various interesting parameters on the flow and heat transfer is analyzed in detail through plotted graphs.
Źródło:
International Journal of Applied Mechanics and Engineering; 2018, 23, 2; 429-443
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal analysis of generalized Burgers nanofluid over a stretching sheet with nonlinear radiation and non uniform heat source/sink
Autorzy:
Kumar, K. G.
Ramesh, G. K.
Gireesha, B. J.
Powiązania:
https://bibliotekanauki.pl/articles/240767.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
burgers nanofluid
non-uniform heat source/sink
non-linear radiation
magnetic field
stretching surface
pole magnetyczne
powierzchnia
rozciąganie
promieniowanie
nanofluid
Opis:
The work deals with the heat analysis of generalized Burgers nanofluid over a stretching sheet. The Rosseland approximation is used to model the non-linear thermal radiation and incorporated non-uniform heat source/sink effect. The governing equations reduced to a set of nonlinear ordinary differential equations under considering the suitable similarity transformations. The obtained ordinary differential equations equations are solved numerically by Runge-Kutta-Fehlberg order method. The effect of important parameters on velocity, temperature and concentration distributions are analyzed and discussed through the graphs. It reveals that temperature increases with the increase of radiation and heat source/sink parameter.
Źródło:
Archives of Thermodynamics; 2018, 39, 2; 97-122
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Automatic detection of brain tumors using genetic algorithms with multiple stages in magnetic resonance images
Autorzy:
Annam, Karthik
Kumar, Sunil G.
Babu, Ashok P.
Domala, Narsaiah
Powiązania:
https://bibliotekanauki.pl/articles/27314266.pdf
Data publikacji:
2022
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
MRI brain tumor
GLCM
SURF
genetic optimization
advanced machine learning
Opis:
The field of biomedicine is still working on a solution to the challenge of diagnosing brain tumors, which is now one of the most significant challenges facing the profession. The possibility of an early diagnosis of brain cancer depends on the development of new technologies or instruments. Automated processes can be made possible thanks to the classification of different types of brain tumors by utilizing patented brain images. In addition, the proposed novel approach may be used to differentiate between different types of brain disorders and tumors, such as those that affect the brain. The input image must first undergo pre-processing before the tumor and other brain regions can be separated. Following this step, the images are separated into their respective colors and levels, and then the Gray Level Co-Occurrence and SURF extraction methods are used to determine which aspects of the photographs contain the most significant information. Through the use of genetic optimization, the recovered features are reduced in size. The cut-down features are utilized in conjunction with an advanced learning approach for the purposes of training and evaluating the tumor categorization. Alongside the conventional approach, the accuracy, inaccuracy, sensitivity, and specificity of the methodology under consideration are all assessed. The approach offers an accuracy rate greater than 90%, with an error rate of less than 2% for every kind of cancer. Last but not least, the specificity and sensitivity of each kind are higher than 90% and 50%, respectively. The usage of a genetic algorithm to support the approach is more efficient than using the other ways since the method that the genetic algorithm utilizes has greater accuracy as well as higher specificity.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2022, 16, 4; 36--43
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 57

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies