Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Bulut, Hasan(53)
- Baskonus, Haci Mehmet(52)
- Alataş, Mevlüt(39)
- Gul, Muhammet(39)
- Serdar, Osman(38)
- Güler, Ömer(37)
- Akkurt, Nevzat(31)
- Benzer, Fulya(30)
- Sulaiman, Tukur Abdulkadir(29)
- Yucesan, Melih(29)
- Zengin, Gokhan(29)
- Kocabaş, Mehmet(28)
- Topal, Murat(26)
- Batan, Nevzat(25)
- Kök, Mediha(25)
- Ezer, Tülay(24)
- Paksoy, Mehmet Yavuz(24)
- Yildirim, Ozal(23)
- Tekin, H.O.(22)
- Utku, Anıl(22)
- ALMisned, Ghada(21)
- Ince, Muharrem(21)
- Öbek, Erdal(21)
- Erten, Fusun(20)
- Aslan, Naim(19)
- Celik, Erkan(19)
- Yildirim, Numan(19)
- Cakilcioglu, Ugur(18)
- Dal, Murat(18)
- Dal, Nursel Alp(18)
- Sahin, Kazim(18)
- Özkaynak, Fatih(18)
- Aslan, Alper(17)
- Erata, Hüseyin(17)
- Orhan, Cemal(17)
- Ergen, Burhan(16)
- Tanyol, Mehtap(16)
- Demir, Yakup(15)
- Etli, Serkan(15)
- Işık, Erdem(15)
Yayınlar
- MakaleAçık Erişim2022Scopus SJRQ1Free convective trickling over a porous medium of fractional nanofluid with MHD and heat source/sink
Lin, Yuanjian; Rehman, Sadique; Akkurt, Nevzat; Shedd, Tim; Kamran, Muhammad; Qureshi, Muhammad Imran; Botmart, Thongchai; Alharbi, Abdulaziz N.; Farooq, Aamir; Khan, Ilyas
Nanofluids are considered as smart fluids that can improve heat and mass transfer and have numerous applications in industry and engineering fields such as electronics, manufacturing, and biomedicine. For this reason, blood-based nanofluids with carbon nanotubes (CNTs) as nanoparticles in the presence of a magnetic field are discussed. The nanofluid traverses the porous medium. The nanofluids move on a vertical plate that can be moved. The free convection heat transfer mode is considered when the heat source and heat fluxes are constant. Convective flows are often used in engineering processes, especially in heat removal, such as geothermal and petroleum extraction, building construction, and so on. Heat transfer is used in chemical processing, power generation, automobile manufacturing, air conditioning, refrigeration, and computer technology, among others. Heat transfer fluids such as water, methanol, air and glycerine are used as heat exchange media because these fluids have low thermal conductivity compared to other metals. We have studied the effects of MHD on the heat and velocity of nanofluids keeping efficiency in mind. Laplace transform is used to solve the mathematical model. The velocity and temperature profiles of MHD flow with free convection of nanofluids were described using Nusselt number and skin friction coefficient. An accurate solution is obtained for both the velocity and temperature profiles. The graph shows the effects of the different parameters on the velocity and temperature profiles. The temperature profile improved with increasing estimates of the fraction parameter and the volume friction parameter. The velocity of the nanofluid is also a de-escalating function with the increasing values of the magnetic parameter and the porosity parameter. The thickness of the thermal boundary layer decreases with increasing values of the fractional parameter.
AtıfScopus13OpenAlex12
İncele - MakaleAçık Erişim2022Scopus SJRQ1How Covid-19 pandemic and partial lockdown decisions affect air quality of a city? The case of Istanbul, Turkey
Celik, Erkan; Gul, Muhammet
The world is currently struggling with a new type of coronavirus (2019-nCoV) pandemic that first appeared in Wuhan, China, and then spread to almost all countries. As in other countries of the world, public authorities in Turkey are implementing many preventive and mitigating partial lockdown (PL) actions against the virus's effects. Some decisions and policies implemented before and after March 11, 2020, when the first virus case has been identified, have reduced people and traffic circulation, which has also turned into some improvements in air quality. At this point, this study aims to investigate how this pandemic affects the air quality of a metropolis. A case study of the city of Istanbul, the most affected city with more than half of Turkey's cases, is performed. In our analysis, we observe, compare, and discuss the impact of the COVID-19 pandemic and PL decisions on Istanbul city's air quality. We consider the particulate matter (PM10), sulfur dioxide (SO2), carbon monoxide (CO), nitrogen dioxide (NO2), nitrogen oxide (NO), nitrogen oxides (NOx), and ozone (O3) concentrations. We used data from 19 air monitoring stations (AMSs) and obtained improvements in the air quality for the pandemic period. In summary, the concentration levels in PM10, NO2, NO, and NOx result in a clear decline in pandemic times compared to the normal times in Istanbul. On the other hand, a non-homogenous trend for SO2 and CO concentrations is observed for different AMSs. A partial increase in O2 concentration is obtained in the comparison of before and during the PL period.
AtıfScopus15WoS13OpenAlex22İncele - MakaleAçık Erişim2022Scopus SJRQ3USING OBSTACLE PERFORATION, RECONFIGURATION, AND INCLINATION TECHNIQUES TO ENHANCE THE DYNAMIC AND THERMAL STRUCTURE OF A TOP-ENTRY CHANNEL
Mahdi, Khaled; Bekrentchir, Khalida; Hussein, Ahmed Kadhim; Akgule, Ali; Shanak, Hussein; Asad, Jihad; Akkurt, Nevzat; Menni, Younes
This research is to incorporate three efficient ways that will increase the perfor-mance of baffled heat exchangers. The 1st technique is represented by baffle per-forating to create pores through which secondary streams pass in order to reduce main stream pressure on the flow areas. A 2nd technique represented in redesign-ing the baffle structure by replacing its square edge with the arched edge in or-der to increase the X-velocity to facilitate the flow towards the outlet and reduce the Y-velocity to reduce the values of fluid friction with the solid areas. Finally, a 3rd way was demonstrated by using the inclined baffle model. Reinforcement of the baffle structure allowed for enhanced vortices, increased thermal gradients, and thus a reinforced thermodynamic structure over the entire heat exchanger
AtıfScopus4OpenAlex4İncele - MakaleAçık Erişim2022Scopus SJRQ3Effects of kefir supplementation on body antioxidant-systems, haemolymph heat-shock protein 70 and trypsin, in the crayfish Astacus leptodactylus Eschscholtz (Decapoda, Astacidea)
Aksu, Önder; Türkoǧlu, Semra; Can, Erkan; Erişir, Mine; Kocabaş, Mehmet; Kayim, Murathan; Benzer, Fulya
This study was designed to investigate the effects of dietary kefir on trypsin, heat shock protein 70 (HSP70) as well as the oxidant and antioxidant status of the freshwater crayfish, Astacus leptodactylus. The experiment was performed with the four following treatments: Control group, D1, D2 and D3 (kefir supplemented diet 2, 4, 8 g/kg of crayfish body mass, respectively). Crayfish were stocked into 12 fibreglass tanks (three replicates per treatment) and fed for 45 days. Reduced glutathione (GSH), glutathione peroxidase (GSH-Px), malondialdehyde (MDA) and catalase (CAT) in hepatopancreas and muscle were analysed to determine the status of the oxidant/antioxidant balance. In addition, HSP70 and trypsin were measured in haemolymph. Our results indicated that the activity of GSH-Px, MDA and GSH levels decreased in hepatopancreas ( p > 0.05) and muscle tissues ( p < 0.05) with increasing kefir concentration, while CAT activity increased ( p < 0.05). Trypsin and HSP70 insignificantly decreased in haemolymph.
AtıfScopus1WoS1OpenAlex1İncele - MakaleAçık Erişim2022Scopus SJRQ3The use of Phanerochaete chrysosporium as an alternative bioremedia-tion tool of heavy metal, chemical oxygen demand and phosphate from landfill leachate
Yildirim, Numan; Kardas, Elif; Ince, Muharrem
In this study, in order to investigate the bioremediation efficiency of Phanerochaete chrysosporium, chemical oxygen demand (COD) reduction, total phosphate levels and heavy metal (Fe2+, Mn2+, Zn2+ and Cu2+) removal were determined in five different experimental groups (control, X, Y, Z, and T) under static culture conditions containing leachate at different incubation periods (5, 10, and 20 d). At the end of the 20th day of incubation, 84% Mn2+ and Zn2+ removal was achieved in X application group. In the same application group, 90.88% COD reduction was also obtained. The lowest total phosphate value was determined as 2.63 g L–1 in T group compared with control group (5.0 g L–1). Similar improvements have been identified in other application groups in terms of metal removal, total phosphate levels and COD reduction. As a result, the findings obtained from our study show that white rot fungus P. chrysosporium can be used as an alternative biological resource in the studies for improving landfill leachate in terms of metal removal efficacy, COD and total phosphate level reduction capacity.
AtıfScopus3WoS1OpenAlex3İncele - MakaleAçık Erişim2022Scopus SJRQ2Age- and Sex-Specific Bioaccumulation of Selected Metals in Freshwater Mussel (Unio elangatulus eucirrus Bourguignat, 1860) Populating from Keban Dam Lake (Elazig, Turkey)
Danabaş, Durali; Kutluyer, Filiz; Ural, Mesut; Özçelik, Mehtap; Kocabaş, Mehmet
In aquatic life, environmental chemicals are accumulated by mussels due to their sentinel nature and filter-feeding characteristics. Herein, the present study focused on assessing the concentrations of Cu, Zn, Mg, Mn, Fe, Cd, Pb, Ca, K, and Na levels in freshwater mussels (Unio elangatulus eucirrus) depending on sex and age. For all trace metals, some important differences of bioaccumulations were determined depending on ages and sex. In details, the results indicated that an important age-related accumulation of Mg, Cd, Ca, and K was in females and all trace elements, except Cu, Mg, and K levels in males (p < 0.05). No statistical differences were determined in mean concentrations of Cu, Zn, Mg, and Na. There are statistical differences in Mg, Mn, Fe, and Ca levels between females and males in four aged mussels (p < 0.05). Lead levels were under detectable limits. Overall, metal levels and their toxicity in freshwater mussels should be closely monitored for health of the environment, animals, and humans, since mussels and fish species fed on them are consumed highly in the research region and around.
AtıfScopus5WoS6OpenAlex7İncele - MakaleAçık Erişim2022Scopus SJRQ1Analysis of turbulent wall jet impingement onto a moving heated body
Coşanay, Hakan; Öztop, Hakan F.; Gür, Muhammed; Bakır, Eda
Purpose: The purpose of this study is to make a numerical analysis of a wall jet with a moving wall attached with a heated body. The hot body is cooled via impinging wall jet. Thus, a jet cooling problem is modeled. The Reynolds number is taken in three different values between 5 × 103 ≤ Re ≤ 15 × 103. The h/H ratio for each value of the Re number was taken as 0.02, 0.04 and 0.0, respectively. Design/methodology/approach: Two-dimensional impinged wall jet problem onto a moving body on a conveyor is numerically studied. The heated body is inserted onto an adiabatic moving wall, and it moves in +x direction with the wall. Governing equations for turbulent flow are solved by using the finite element method via analysis and system Fluent R2020. A dynamic mesh was produced to simulate the moving hot body. Findings: The obtained results showed that the heat transfer (HT) is decreased with distance between the jet outlet and the jet inlet. The best HT occurred for the parameters of h/H = 0.02 and Re = 15 × 103. Also, HT can be controlled by changing the h/H ratio as a passive method. Originality/value: Originality of this work is to make an analysis of turbulent flow and heat transfer for wall jet impinging onto a moving heated body.
AtıfScopus33WoS34OpenAlex33İncele - MakaleAçık Erişim2022Scopus SJRQ2Synthesis and Characterization of Azo Dye Complexes as Potential Inhibitors of Acetylcholinesterase, Butyrylcholinesterase, and Glutathione S-Transferase
Buldurun, Kenan; Aras, Abdülmelik; Turan, Nevin; Turkan, Fikret; Adiguzel, Ragip; Bursal, Ercan
In this study, several metal(II) complexes (Fe, Co, Zn, and Ru) of an azo dye ligand (ADL) that, apart from pyrazole ring (PR), include anisole having (−OCH3) group at the m-substitue of the phenyl (L: (E)-4-((3-methoxyphenyl)diazenyl)-3-methyl-1H-pyrazol-5-amine) were prepared, characterized, and the biological activity studies were carried out. The structures of complexes were identified by elemental analysis, FTIR, UV-vis, mass spectra (Fe(II) and Co(II)), 1H-13C NMR spectra, and TGA-DTA. The azo ligand and its metal complexes were evaluated for their biological properties according to the enzyme inhibitory activities. The lowest Ki values of Co(II) complex against all three GST (19.48±2.17 μM), AChE (22.14±3.74 μM), and BChE (26.39±3.19 μM) enzymes were verified as the most effective enzyme inhibition. The biological activity results suggest that the obtained complexes have good potentials to be used in further analyses to explore new pharmaceutical agents.
AtıfScopus20WoS19OpenAlex18İncele - MakaleAçık Erişim2022Scopus SJRQ1Irreversibility analysis of Ellis hybrid nanofluid with surface catalyzed reaction and multiple slip effects on a horizontal porous stretching cylinder
Naveed Khan, Muhammad; Akkurt, Nevzat; Ameer Ahammad, N.; Ahmad, Shafiq; Amari, Abdelfattah; Eldin, Sayed M; Ali Pasha, Amjad
This paper presents the theoretical and computation irreversibility investigation of the Ellis hybrid nanofluid flow (CuO-Al2O3 nanoparticles) model using both homogeneous and heterogeneous responses toward the horizontal porous stretching cylinder. The Joule heating, thermal radiation, and heat generation/absorption are all factors that affect thermal energy transport, all of which are explored. On the surface of the cylinder, the slip boundary conditions are enforced. Keeping in mind that the nonlinear partial differential equations (PDEs) are converted into nonlinear ordinary differential equations (ODEs), these ODEs are constructed from the mathematical flow model with the aid of proper transformations. With the help of the bvp4c MATLAB built-in method, the nonlinear system equations are tacked numerically. Graphical results are used to discuss the numerical aspects of different parameters. By increasing the curvature parameter, entropy generation increases while fluid velocity decreases. Elasticity and magnetic fields thin boundary layers. Realistically, as liquid porosity increases, momentum boundary layer diminishes.
AtıfScopus36OpenAlex35İncele - MakaleAçık Erişim2022Scopus SJRQ3New national and regional bryophyte records, 69
Ellis, L.T.; Afonina, O.M.; Czernyadjeva, I.V.; Alegro, A.; Šegota, V.; Boiko, M.; Zagorodniuk, N.; Burghardt, M.; Alataş, M.; Aslan, G.
AtıfScopus19OpenAlex21İncele - MakaleAçık Erişim2022Scopus SJRQ2DNA barcoding and phylogenetic analysis of endemic Astragalus nezaketiae and Vicia alpestris subsp. hypoleuca (Fabaceae):Evidence from nrDNA ITS and cpDNA matK and rbcL sequences
Paksoy, Mehmet Y.; Sevİndİk, Emre; Başköse, İsa
In this study, we performed DNA barcoding and phylogenetic analysis using one nuclear (ITS) and two chloroplast DNA regions (matK and rbcL) of endemic Astragalus nezaketiae A. Duran & Aytaçand Vicia alpestris Stev. subsp. hypoleuca (Boiss.) Davis taxa in Turkey. PCR reactions were performed using universal primers. Sequences of the PCR products were edited using BioEdit and FinchTV software and contigs were obtained. All contigs were Blasted at NCBI and similarities were analysed. Using the MEGA 6.0 program, maximum likelihood trees were constructed including some sequences retrieved from NCBI. For Astragalus nezaketiae; in the ITS analysis, Astragalus nezaketiae appeared separately from other species, and for matK, Astragalus nezaketiae appeared together with Astragalus cicer L. However, rbcL tree was polytomic. For Vicia alpestris subsp. hypoleuca; in ITS, rbcL and matK results Vicia alpestris subsp. hypoleuca were found together with Vicia cracca L., Vicia benghalensis L. and Vicia villosa Roth species. Analysis of the combined data revealed similar results with all barcode regions for Vicia alpestris subsp. hypoleuca while different phylogenetic results were obtained for Astragalus nezaketiae.
AtıfScopus3WoS2OpenAlex3İncele - MakaleAçık Erişim2022Scopus SJRQ1Novel of (PLA/PCL blend)/Gd2O3 rare earth oxide nanocomposites: Shape memory effect, thermal, magnetic, and mechanical properties
Özen Öner, Ecem; Pekdemir, Mustafa Ersin; Ercan, Ercan; Say, Yakup; Kök, Mediha; Aydoğdu, Yıldırım
Poly ɛ-caprolactone (PCL) and poly lactic acid (PLA) stand out as biocompatible polymers. In this study, PCL and PLA were blended in 40:60 ratio, respectively, and then the Gd2O3 compound, which is an important earth element oxide, was mixed in PLA–PCL shape memory polymer (SMP) blend at different rates and polymer blend nanocomposites were obtained. First of all, the effects of Gd2O3 oxide on the thermal properties of the SMP blend were determined with a differential scanning calorimeter (DSC) and thermogravimetric analyzer (TGA), and it was determined that Gd2O3 did not have a significant effect on the melting temperature of the blend, while it significantly increased its thermal stability. As a result of the XRD (X-ray diffraction) analysis of the composites at room temperature, it was determined that the semicrystalline blend, with the addition of Gd2O3, increased its crystalline property. When the shape memory effect was examined, it was understood that the additive did not eliminate the shape memory effect. When the magnetic property of the gadolinium oxide-doped composite, which is magnetocaloric oxide, was examined, the magnetic property of the composite changed from diamagnetic to paramagnetic with increasing additives. Finally, the mechanical properties of the shape memory blend composite were investigated and no regular changes were observed in the mechanical properties with increasing Gd2O3.
AtıfScopus38OpenAlex42İncele - MakaleAçık Erişim2022Scopus SJRQ1Newly synthesized NiCoFeCrW High-Entropy Alloys (HEAs): Multiple impacts of B4C additive on structural, mechanical, and nuclear shielding properties
Gul, Ali Oktay; Kavaz, Esra; Basgoz, Oykum; Guler, Omer; ALMisned, Ghada; Bahceci, Ersin; Albayrak, M. Gokhan; Tekin, H.O.
High-Entropy Alloys (HEAs) are regarded as potential structural materials for fusion and next-generation fission reactors, which will be required to fulfil growing nuclear energy demands. In this study, a HEA-composite was synthesized by adding B4C to an HEA containing Ni. The microstructure of the obtained HEA-composite was examined and the changes in its mechanical properties were revealed. Additionally, the nuclear radiation shielding properties of the Ni-containing HEA, and the HEA-composite are investigated using experimental and theoretical methods. Our initial findings showed that with the addition of 2.5% B4C to the alloy, the hardness increased more than two times. The addition of B4C to the HEA matrix resulted in a more than 90% and a nearly twofold increase in compressive strength. The shielding qualities of gamma-ray and neutron radiation were investigated using experimental and theoretical approaches. Our findings demonstrated that increasing the B4C reinforcement considerably enhanced the composite material's neutron attenuation capabilities. On the other hand, no significant change in the gamma-ray shielding characteristics of HEA and HEA-composite samples was observed. The gamma-ray shielding characteristics of HEA and HEA-composite samples were compared to those of other alloy shields and commercial products. Our findings indicate that both HEA and HEA-composite samples exhibit superior gamma-ray shielding characteristics when compared to the control samples. It can be concluded that increasing B4C reinforcement may be a multifunctional tool in terms of improving the mechanical properties as well as neutron attenuation properties for advanced applications in nuclear radiation facilities and next-generation fission reactors. Additionally, due to their promising material features and higher gamma-ray shielding capabilities compared to other kinds of alloys and commercial shields, HEAs may be beneficial materials.
AtıfScopus33OpenAlex31İncele - MakaleAçık Erişim2022Scopus SJRQ2Stability Analysis of Buoyancy Magneto Flow of Hybrid Nanofluid through a Stretchable/Shrinkable Vertical Sheet Induced by a Micropolar Fluid Subject to Nonlinear Heat Sink/Source
Khan, Umair; Zaib, Aurang; Ishak, Anuar; Alotaibi, Abeer M.; Eldin, Sayed M.; Akkurt, Nevzat; Waini, Iskandar; Madhukesh, Javali Kotresh
The utilization of hybrid nanofluids (HNs) to boost heat transfer is a promising area of study, and thus, numerous scientists, researchers, and academics have voiced their admiration and interest in this area. One of the main functions of nanofluids is their dynamic role in cooling small electrical devices such as microchips and associated gadgets. The major goal of this study is to perform an analysis of the buoyancy flow of a shrinking/stretching sheet, whilst considering the fascinating and practical uses of hybrid nanofluids. The influence of a nonlinear heat source/sink induced by a micropolar fluid is also inspected. Water-based alumina and copper nanoparticles are utilized to calculate the fine points of the fluid flow and the features of heat transfer. The governing equations are framed with acceptable assumptions and the required similarity transformations are used to turn the set of partial differential equations into ordinary differential equations. The bvp4c technique is used to solve the simplified equations. Dual solutions are presented for certain values of stretching/shrinking parameters as well as the mixed convective parameter. In addition, the shear stress coefficient in the first-branch solution (FBS) escalates and decelerates for the second-branch solution (SBS) with the superior impact of the magnetic parameter, the mass transpiration parameter, and the solid nanoparticles volume fraction, while the contrary behavior is seen in both (FB and SB) solutions for the larger values of the material parameter.
AtıfScopus22OpenAlex27İncele - MakaleAçık Erişim2022Scopus SJRQ3Psychometric properties and cultural adaptation of Polish version of Gynecological Cancers Awareness Scale (GCAS)
Nagorska, Malgorzata; Dal, Nursel Alp; Apay, Serap Ejder; Lesinska-Sawicka, Malgorzata; Capik, Canturk
Objectives: Cancer of the female genital organs is one of the most common causes of death of women in Poland. The aim of the study was to translate and analyze the psychometric properties of the Polish version of the Gynecological Cancers Awareness Scale (GCAS). Material and methods: Cross-sectional study and questionnaire technic were used to collect data. The study was conducted from June 10th to July10th 2021 among 443 adult women in Poland. Results: The Cronbach Alpha measure was used to assess the internal consistency of the scale. Cronbach’s Alpha values greater than 0.7 indicates that the scale has high reliability. Conclusions: The analysis confirms that the Polish version of Gynecological Cancers Awareness Scale has a very high reliability to assess the women’s cancers awareness and knowledge of cancers.
AtıfScopus4WoS5İncele - MakaleAçık Erişim2022Scopus SJRQ2Comparative karyological analysis of some Turkish Cuscuta L. (Convolvulaceae)
Taşar, Neslihan; Tekbudak, İlhan Kaya; Demir, İbrahim; Açar, Mikail; Kürşat, Murat
This study investigated the somatic chromosome numbers and morphomet-ric properties of 11 different taxa belonging to the genus Cuscuta L., which is one of the parasitic flowering plants and causes significant economic losses on agricultural products. For this purpose, the species were examined karyologically and compared statistically. Belonging to the genus Cuscuta, C. campestris Yunck., C. hyalina Roth, C. kotschyana Boiss., C. babylonica Aucher ex Choisy, C. europaea L., C. kurdica Engelm., C. brevistyla A.Braun ex A.Rich, C. planiflora Ten., C. approximata Bab., C. lupuliformis Krock. C. palaestina Boiss. the chromosome number and morphology of the species were investigated using karyological techniques. Chromosome numbers of the species; C. kotschyana, C. babylonica, C. europaea, C. kurdica, C.planiflora 2n=14; C. campes-tris, C. hyalina, C. approximata, C. lupuliformis, and C. palaestina 2n=28 and C. brevi-styla 2n=42 is determined. Also, the species’ chromosome number, total chromosome length, relative length, arm ratio, centromere index and centromere states, and karyo-type asymmetry values were determined. Chromosome numbers of C. kotschyana and C. kurdica taxa were defined for the first time in this study. Thus, new data on the systematics of these species have been revealed.
AtıfScopus2WoS3OpenAlex3İncele - MakaleAçık Erişim2022Scopus SJRQ2Significance of Free Convection Flow over an Oscillating Inclined Plate Induced by Nanofluid with Porous Medium: The Case of the Prabhakar Fractional Approach
Raza, Ali; Khan, Umair; Eldin, Sayed M.; Alotaibi, Abeer M.; Elattar, Samia; Prasannakumara, Ballajja C.; Akkurt, Nevzat; Abed, Ahmed M.
Given the importance and use of electrically conducted nanofluids, this work aims to examine an engine-oil-based nanofluid including various nanoparticles. In the current study, a fractional model for inspecting the thermal aspect of a Brinkman-type nanofluid, composed of (molybdenum disulfide (MOS2) and graphene oxide (GO) nanoparticles flows on an oscillating infinite inclined plate, which characterizes an asymmetrical fluid flow, heat, and mass transfer. Furthermore, the Newtonian heating effect, magnetic field, and slip boundary conditions were taken into account. The objectives for implementing the Prabhakar-like fractional model are justified because this fractional algorithm has contemporary definitions with no singularity restrictions. Furthermore, the guided fractional model was solved using the Laplace transform and several inverse methods. The obtained symmetrical solutions have been visually analyzed to investigate the physics of several relevant flow parameters on the governed equations. Some exceptional cases for the momentum field are compiled to see the physical analysis of the flowing fluid symmetry. The results show that the thermal enhancement can be progressively improved with the interaction of the molybdenum disulfide-engine oil-based nanofluid suspension, rather than with the graphene oxide mixed nanoparticle fluid. Furthermore, the temperature and momentum profiles enhance due to the factional parameters for molybdenum disulfide and the graphene oxide-engine oil-based nanofluid suspension. This study’s graphical and numerical comparison with the existing literature has shown a very close resemblance with the present work, which provides confidence that the unavailable results are accurate. The results show that an increase improved the heat transmission in the solid nanoparticle volume fractions. In addition, the increment in the mass and heat transfer was analyzed in the numerical evaluation, while the shear stress was enhanced with the enhancement in the Prabhakar fractional parameter α.
AtıfScopus15OpenAlex15İncele - MakaleAçık Erişim2022Scopus SJRQ1Effectiveness of the training provided to healthcare professionals in Turkey to recognise the symptoms and risks of child abuse and neglect
Cevik Durmaz, Yadigar; Tuncer Coban, Pelin; Eseroglu Soylemez, Tugba; Aktas, Hakki
Healthcare professionals have a significant role to play in the early diagnosis of child abuse and neglect (CAN), which is important in terms of protecting children's health. The study aimed to measure the change in the participants' level of diagnosing the risks and symptoms of CAN before and after the training by providing a training program to healthcare professionals including the signs of CAN, symptoms and procedures to be followed in this case. All healthcare professionals working in a State Hospital and Family Health Centers in Tunceli, Turkey, and who volunteered to participate in the study were included in the study (n = 125). The data were collected before and after the training by using the Personal Information Form and The Diagnosis Scale of the Risks and Symptoms of Child Abuse and Neglect (DSRSCAN). 39 participants (31.2%) reported that they had previously suspected CAN, and 35 (28%) stated that they had encountered CAN before. The mean DSRSCAN score of the healthcare professionals included in the study before the training was 3.38 (lowest =2.37, highest =3.55), while after the training, it went up to 3.60 (lowest =2.76, highest =5.00), and the difference between the pre-training and post-training DSRSCAN scores was determined to be statistically significant (p < 0.001). It was determined that when healthcare professionals were trained on CAN, their awareness could be further strengthened. Hence, training programs for healthcare professionals on diagnosing and reporting CAN should be updated and increased.
AtıfScopus14WoS15OpenAlex18İncele - MakaleAçık Erişim2022Scopus SJRQ1SBOX-CGA: substitution box generator based on chaos and genetic algorithm
Artuğer, Fırat; Özkaynak, Fatih
What makes artificial intelligence techniques so remarkable in the field of computer science is undoubtedly their success in producing effective solutions to difficult computational problems. In particular, metaheuristic optimization algorithms are a unique example of using artificial intelligence techniques to generate approximate solutions to problems that cannot be solved in polynomial time, called NP. Obtaining a substitution box (s-box) structure that will satisfy the desired requirements in cryptography is an example of these NP problems. In the literature, it is a hot topic to optimize the s-box structures obtained from chaotic entropy sources with heuristic algorithms to improve their cryptographic properties. The study with the highest nonlinearity value (110.25) based on optimization algorithms to date has been published in 2020. In this study, a method with a higher nonlinearity value than the algorithms previously proposed in the literature is developed. It has been shown that the nonlinearity value can be increased to 111.75. These results will be a basis for new research on the chaos-based s-box literature and will motivate new studies to develop alternative optimization algorithms in the future to obtain s-box structures based on the random selection equivalent to the AES s-box.
AtıfScopus47WoS35OpenAlex49İncele - MakaleAçık Erişim2022Scopus SJRQ2Prangos munzurensis (Apiaceae), a new species from East Anatolia, Turkey
Lyskov, Dmitry; Duran, Ahmet; Paksoy, Mehmet Yavuz; Samigullin, Tahir
A new species, Prangos munzurensis (Apiaceae), is described and illustrated from Tunceli Province, Eastern Turkey. The new species is related to Prangos heyniae, P. abieticola, and P. denticulata and differs from them in the number of rays, length of bracts, indumentum of petals, ultimate segments of leaves, stylopodium features, fruit morphology and anatomy, and distributional range. It also differs from P. ferulacea in presence of furrows between blocks of inner mesocarp, number of umbel rays, and puberulous petals. A comprehensive description of the morphological and carpo-anatomical features, photographs, and data on the geographical distribution, habitat and ecology, and conservation status are also provided. In addition, P. munzurensis is recognized as a separate species by molecular analysis of nrITS/ETS.
AtıfScopus2OpenAlex2İncele