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A New Hybrid Approach Using GWO and MFO Algorithms to Detect Network Attack

Computer Modeling in Engineering & Sciences 2023年第8期136卷 1277-1314页

作者： Hasan Dalmaz Erdal Erdal halil muratünver Department of Computer Engineering Faculty of Engineering and ArchitectureKırıkkale UniversityKırıkkale71450Turkey

This paper addresses the urgent need to detect network security attacks,which have increased significantly in recent years,with high accuracy and avoid the adverse effects of these *** intrusion detection system should respond seamlessly to attack patterns and *** use of metaheuristic algorithms in attack detection can produce near-optimal solutions with low computational *** achieve better performance of these algorithms and further improve the results,hybridization of algorithms can be used,which leads to more successful ***,many studies are conducted on this *** this study,a new hybrid approach using Gray Wolf Optimizer(GWO)and Moth-Flame Optimization(MFO)algorithms was developed and applied to widely used data sets such as NSL-KDD,UNSW-NB15,and CIC IDS 2017,as well as various benchmark *** ease of hybridization of the GWO algorithm,its simplicity,its ability to perform global optimal search,and the success of the MFO algorithm in obtaining the best solution suggested that an effective solution would be obtained by combining these two *** these reasons,the developed hybrid algorithm aims to achieve better results by using the good aspects of both the GWO algorithm and the MFO *** reviewing the results,it was found that a high level of success was achieved in the benchmark *** achieved better results in 12 of the 13 benchmark functions *** addition,the success rates obtained according to the evaluation criteria in the different data sets are also *** the 97.4%,98.3%,and 99.2% classification accuracy results obtained in the NSL-KDD,UNSW-NB15,and CIC IDS 2017 data sets with the studies in the literature,they seem to be quite successful.

关键词： Network attack detection hybrid GWO MFO

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Wear Behavior of Aluminum Matrix Hybrid Composites Fabricated through Friction Stir Welding Process

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Journal of Iron and Steel Research International 2016年第10期23卷 1119-1126页

作者： halil Ibrahim KURT murat ODUNCUOGLU Ramazan ASMATULU Department of Mechanical and Metal Technologies Technical SciencesGaziantep University Department of Mechanical Engineering Wichita State University

Effects of friction stir processing（FSP）parameters and reinforcements on the wear behavior of 6061-T6 based hybrid composites were investigated.A mathematical formulation was derived to calculate the wear volume loss of the *** experimental results were contrasted with the results of the proposed *** influences of sliding distance,tool traverse and rotational speeds,as well as graphite（Gr）and titanium carbide（TiC）volume fractions on the wear volume loss of the composites were also investigated using the prepared *** results demonstrated that the wear volume loss of the composites significantly increased with increasing sliding distance,tool traverse speed,and rotational speed;while the wear volume loss decreased with increasing volume fraction of the reinforcements.A minimum wear volume loss for the hybrid composites with complex reinforcements was specified at the inclusion ratio of 50% TiC＋50% Al2O3 because of improved lubricant ability,as well as resistance to brittleness and *** possibilities to develop wear-resistant aluminum-based composites for different industrial applications were proposed.

关键词： aluminum alloy friction stir processing wear hybrid composite modeling

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The predictive value of triglyceride-glucose index for in-hospital and one-year mortality in elderly non-diabetic patients with ST-segment elevation myocardial infarction

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Journal of Geriatric Cardiology 2022年第8期19卷 610-617页

作者： FaysalŞaylık TufanÇınar murat Selçuk İbrahim halil Tanboğa Department of Cardiology Van Training and Research HospitalVanTurkey Department of Cardiology Sultan II.Abdülhamid Han Training and Research HospitalIstanbulTurkey Department of Cardiology and Biostatistics Nisantasi University Medical SchoolIstanbulTurkey

BACKGROUND Triglyceride-glucose(TyG)index,a reliable marker of insulin resistance,was associated with cardiovascular morbidity and *** study aimed to evaluate the predictive value of TyG index for mortality in elderly non-diabetic pa-tients with ST-segment elevation myocardial infarction(STEMI).METHODS In total,430 non-diabetic patients aged over 65 years with STEMI were consecutively *** TyG index was calculated by using the following formula:TyG index=ln(fasting triglyceride×fasting glucose/2).The 5-item modified frailty index score was utilized to determine *** were divided into three groups based on TyG index *** Patients included into high TyG index tertile were male and had higher body mass index,glucose,triglyceride,low-density lipoprotein cholesterol,5-item modified frailty index and GRACE risk score;and had low systolic blood pressure,estim-ated glomerular filtration rate and left ventricular ejection fraction.A one-unit increase in TyG index was associated with 3.03 ex-tra cases per 1000 person-day for in-hospital mortality and 0.29 extra cases per 1000 person-day for long-term *** was a non-linear relationship between TyG index and the risk of mortality with an increased risk above 8.5 for TyG ***-Meier survival curves revealed that patients in high TyG index tertile had higher in-hospital and long-term mortality rates than those in low TyG index *** This was the first study to demonstrate that the TyG index could predict in-hospital and long-term mortality in elderly non-diabetic STEMI patients.

关键词： patients mortality diabetic

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Endobiliary radiofrequency ablation for malignant biliary obstruction

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Hepatobiliary & Pancreatic Diseases International 2013年第4期12卷 423-427页

作者： halil Alis Cetin Sengoz murat Gonenc Mustafa Uygar Kalayci Ali Kocatas General Surgery Clinics Dr. Sadi Konuk Training and Research HospitalIstanbul 34147 Turkey General Surgery Clinics Mugla Public HospitalMugla 48162 Turkey

BACKGROUND: The cornerstone of palliative treatment for inoperable extrahepatic cholangiocarcinoma is the relief of malignant biliary obstruction. The most commonly applied method is endoscopic stenting. However, the procedure can be complicated with stent obstruction. In this respect, endobiliary radiofrequency ablation may serve as an adjunctive tool for prolonging the stent patency. METHODS: Patients who underwent endoscopic retrograde cholangiopancreatography for differential diagnosis and/ or palliative treatment after the diagnosis of inoperable extrahepatic cholangiocarcinoma between March 2011 and January 2012 were analyzed. Those in whom endobiliary radiofrequency ablation and endoscopic stenting was successfully performed were included in the study. Technical details of the procedure, duration of stent patency, length of hospital stay, short-term morbidity and mortality rate were documented. RESULTS: Seventeen patients were analyzed, and 10 patients were included in the study. The morbidity and mortality rate within the first 30 days after the procedure was 20% and 0%, respectively. In 2 patients, mild pancreatitis occurred because of the endobiliary procedure. In 1 patient, endobiliary decompression could not be achieved, and therefore, percutaneous transhepatic biliary drainage was carried out. The median duration of stent patency in 9 patients with successful biliary decompression was 9 months (range 6-15). CONCLUSION: Endobiliary radiofrequency ablation seems to be safe and feasible as a palliative measure and may prolong the stent patency and overall survival in patients with malignant biliary obstruction due to inoperable extrahepatic cholangio-carcinoma.

关键词： obstructive jaundice cholangicarcinoma Klatskin tumor endobiliary stenting radiofrequency ablation

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Neural network study of hidden-charm pentaquark resonances

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Chinese Physics C 2019年第9期43卷 19-25页

作者： halil Mutuk Physics Department Faculty of Arts and Sciences Ondokuz Mayis University

Recently,the LHCb experiment announced the observation of hidden-charm pentaquark states Pc(4312),Pc(4440),and Pc(4457)nearΣcDandΣcD**** this present work,we studied these pentaquarks in the framework of the nonrelativistic quark model with four types of *** solved five-body Schrodinger equation by using the artificial neural network method and made predictions of parities for these states,which are not yet determined by *** mass of another possible pentaquark state near the D*Σc*with JP=5/2-is also calculated.

关键词： hidden-charm resonances pentaquark neural networks

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Photon attenuation parameters for some tissues from Geant4simulation, theoretical calculations and experimental data:a comparative study

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Nuclear Science and Techniques 2019年第6期30卷 78-87页

作者： halil Arslan Electrical and Electronics Engineering Sakarya University of Applied Sciences

Mass attenuation coefficients, effective atomic numbers, effective electron densities and Kerma relative to air for adipose, muscle and bone tissues have been investigated in the photon energy region from 20 keV up to 50 MeV with Geant4 simulation package and theoretical calculations. Based on Geant4 results of the mass attenuation coefficients, the effective atomic numbers for the tissue models have been calculated. The calculation results have been compared with the values of the Auto-Zeff program and with other studies available in the literature. Moreover, Kerma of studied tissues relative to air has been determined and found to be dependent on the absorption edges of the tissue constituent elements.

关键词： Attenuation coefficient Effective atomic number Geant4 simulation Tissue model

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Inhibitory effects of regorafenib, a multiple tyrosine kinase inhibitor, on corneal neovascularization

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International Journal of Ophthalmology(English edition) 2014年第2期7卷 220-225页

作者： halil Ibrahim Onder Mesut Erdurmus Yasin Yücel Bucak Hüseyin Simavli murat Oktay Ahmet Sahap Kukner Department of Ophthalmology Duzce University Medical Faculty Department of Ophthalmology Abant Izzet Baysal University Medical School Ophthalmology Clinic Izzet Baysal State Hospital Department of Pathology Duzce University Medical Faculty

AIM:To evaluate the inhibitory effects of regorafenib(BAY 73-4506),a multikinase inhibitor,on corneal neovascularization(NV).METHODS:Thirty adult male Sprague-Dawley rats weighing 250-300 g,were *** NV was induced by NaOH in the left eyes of each *** the establishment of alkali burn,the animals were randomized into five groups according to topical *** 1(n=6)received 0.9%NaCl,Group 2(n=6)received dimethyl sulfoxide,Group 3(n=6)received regorafenib 1 mg/mL,Group 4(n=6)received bevacizumab 5 mg/mL and Group 5(n=6)received 0.1%dexamethasone *** the 7d,the corneal surface covered with neovascular vessels was measured on photographs as the percentage of the cornea’s total area using computer-imaging *** corneas obtained from rats were semiquantitatively evaluated for caspase-3 and vascular endothelial growth factor by ***:A statistically significant difference in the percent area of corneal NV was found among the groups(P0.005).There was a statistically significant difference among the groups in apoptotic cell density(P=0.002).The staining intensity of vascular endothelial growth factor in the epithelial and endothelial layers of cornea was significantly different among the groups(P<0.05).The staining intensity of epithelial and endothelial vascular endothelial growth factor was significantly weaker in Groups 3,4 and 5 thanin Groups 1 and ***:Topical administration of regorafenib 1mg/mL is partly effective for preventing alkali-induced corneal NV in rats.

关键词： corneal neovascularization regorafenib tyrosine kinase inhibitor

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REKF and RUKF for pico satellite attitude estimation in the presence of measurement faults

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Journal of Systems Engineering and Electronics 2014年第2期25卷 288-297页

作者： halil Ersin Sken Chingiz Hajiyev Department of Space and Astronautical Science The Graduate University for Advanced Studies (Sokendai) Aeronautics and Astronautics Faculty Istanbul Technical University

When a pico satellite is under normal operational condi- tions, whether it is extended or unscented, a conventional Kalman filter gives sufficiently good estimation results. However, if the measurements are not reliable because of any kind of malfunc- tions in the estimation system, the Kalman filter gives inaccurate results and diverges by time. This study compares two different robust Kalman filtering algorithms, robust extended Kalman filter （REKF） and robust unscented Kalman filter （RUKF）, for the case of measurement malfunctions. In both filters, by the use of de- fined variables named as the measurement noise scale factor, the faulty measurements are taken into the consideration with a small weight, and the estimations are corrected without affecting the characteristic of the accurate ones. The proposed robust Kalman filters are applied for the attitude estimation process of a pico satel- lite, and the results are compared.

关键词： pico satellite attitude estimation robust Kalman filter-ing extended Kalman filter (EKF) unscented Kalman filter (UKF).

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Effect of surfactant on the dielectric and electrorheological properties of zinc borate/silicone oil dispersions

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International Journal of Minerals,Metallurgy and Materials 2019年第12期26卷 1523-1530页

作者： Omer Yunus Gumus halil Ibrahim Unal Bursa Technical University Engineering and Natural Sciences FacultyFiber and Polymer Engineering DepartmentBursa 16310Turkey Gazi University Science FacultyChemistry DepartmentSmart Materials Research Lab.Ankara 06500Turkey

Zinc borate(ZB)particles dispersed in silicone oil(SO)at concentrations of φ=5vol%-20vol% were subjected to dielectric analysis to elucidate their polarization strength,time,and *** revealed that all virgin dispersions lacked *** X-100,a non-ionic surfactant,was added to ZB/SO dispersions to enhance the polarizability of ZB *** addition of 1vol% Triton X-100 enhanced the polarizability of ZB/SO dispersions,and the 15vol% ZB/SO system provided the highest dielectric difference Δε′(the difference in ε′values at zero and infinite frequency,Δε′=ε0–ε∝)of *** electrorheological(ER)activities of the ZB/SO/Triton-X dispersion system were determined through the ER response test,and viscoelastic behaviors were investigated via oscillation tests.A recoverable deformation of 36% under an applied electrical field strength of 1.5 kV/mm was detected through creep and creep recovery tests.

关键词： zinc borate electrorheological fluids dielectric analysis surfactant

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The fatty acid compositions of predator Piocoris luridus （Heteroptera： Lygaeidae） and its host Monosteria unicostata （Heteroptera： Tingidae） reared on almond

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Insect Science 2007年第6期14卷 461-466页

作者： OZLEM CAKMAK MEHMET BASHAN halil BOLU Department of Biology Education Faculty Department of Biology Science and Art Faculty Department of Plant Protection AgricultureFaculty Dicle University 21280 Diyarbakir Turkey

The changes in fatty acid compositions during nutritional interaction among almond Amygdalus communis Linnaeus （Rosales： Rosaceae）（host plant）, lacebug Monosteria unicostata （Mulsant and Rey）（Heteroptera： Tingidae） and its predator Piocoris luridus Fieber （Heteroptera： Lygaeidae） were determined by gas chromatography and gas chromatography-mass spectrometry analyses. The fatty acid profiles of phospholipids and triacylglycerols were substantially different. Unlike the general observations for virtually most terrestrial insects, arachidonic and eicosapentaenoic acids were detected in high proportions of phospholipid fractions in both insects, especially in P. luridus. Also the almond tissues provide very little oleic acid to the herbivore diet, yet both insect species developed high proportions of this component. Our data reveals instances of specific accumulation of fatty acid biosynthesis, elongation/desaturation, and not incorporating selected fatty acids into cellular lipids.

关键词： Arachidonic acid insect fatty acid Monosteria unicostata Piocoris luridus,phospholipids triacylglycerols

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