Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Dertli, Enes(12)
- Şahin, Engin(9)
- Bayram, Sinan(8)
- Dirican, Ebubekir(8)
- Ertugrul, Mehmet(8)
- Kaya, Yunus(8)
- Sefali, Abdurrahman(8)
- Kul, Sinan(7)
- İspirli, Hümeyra(7)
- Ayata, Ümit(6)
- Kutlu, Naciye(6)
- Gerçek, Yusuf Can(5)
- Kömür, Gökhan(5)
- Ramahi, Omar M.(5)
- Çelik, Saffet(5)
- Özdemir, Akın(5)
- Artar, Musa(4)
- Ayazoglu, Rabil(4)
- Can, Zehra(4)
- Ecem Bayram, Nesrin(4)
- Ekmekyapar Torun, Fatma(4)
- Hasar, Ugur C.(4)
- Hasar, Ugur Cem(4)
- Kamiloğlu, Aybike(4)
- Karaali, Rabi(4)
- Keskin, Savaş(4)
- Ozden, Erdemalp(4)
- Sunaoglu, Serife Kazanci(4)
- Taylan, Osman(4)
- Ustabulut, Mete Yusuf(4)
- Akkoyunlu, Ebubekir(3)
- Apak, Ömer Ceyhun(3)
- Aras, Selim(3)
- Battal, Fetullah(3)
- Carbas, Serdar(3)
- Cebeci, Fatma(3)
- Gökçe, H.S.(3)
- Hırca, Tuğçe(3)
- Izginli, Mucahit(3)
- Kadakal, Huriye(3)
Yayınlar
- MakaleAçık Erişim2022Scopus SJRQ3Investigation of the recovery efficiency of CeUF method through RT-qPCR quantification of inactivated SARS-CoV-2 in untreated wastewater
Sait, Ahmet; Korkmaz, Serol; Parmaksiz, Ayse; Bayraktar, Bulent
Wastewater-based disease monitoring is an early warning system and a surveillance tool for infectious disease outbreaks regarding pathogens with pandemic potential. This study aimed at investigating the recovery efficiency of centrifugal ultrafiltration (CeUF), which is one of the most-used virus concentration methods, for inactive severe acute respiratory syndrome coronavi-rus 2 (SARS-CoV-2) added to wastewater. Inactivated SARS-CoV-2 was inoculated into untreated wastewater at different concentrations (4 × 103, 8 × 103, 16 × 103, 24 × 103 and 32 × 103 gene copy/ µL) and concentrated through ultrafiltration with a disposable centrifugal filter device. Total nucleic acids in concentrated filtrates were extracted and isolated by an automated system. In isolates, total RNA was measured by a UV/VIS spectrophotometer, and the recovered virus was quanti-fied by RT-qPCR with two gene regions (N1 and N2). The recovery rates were between 11% and 17.8% (mean 15.1%, CV below 15%). While there were positive correlations among the inoculated virus, total RNA and recovered virus, there was no correlation and linearity between the recovery rates. Despite limited recovery rates, CeUF integrated with RT-qPCR quantification can be a valid assay for monitoring SARS-CoV-2 in wastewater, and an early warning system.
AtıfScopus2WoS2OpenAlex3
İncele - MakaleAçık Erişim2022Scopus SJRQ3Comparative Analysis of Migrant Integration Policies of Türkiye and Selected European Countries; [Türkiye ve Seçilmiş Avrupa Ülkelerinin Göçmen Entegrasyon Politikalarının Karşılaştırmalı Olarak İncelenmesi]
Ustabulut, Mete Yusuf; Boylu, Emrah; Başar, Umut
Türkiye’s migrant integration policy, which is one of the most migration-receiving countries in the Middle East owing to regional conflicts during the 2000s, is assessed alongside that of other receiving nations in the “Migrant Integration Policy Index” (MIPEX). These index ranks nations in eight key categories: labor market mobility, family reunion, education, health, political participation, permanent residence, access to nationality, and anti-discrimination. This study examines Türkiye’s change in migration policy ratings by comparing the index 2015 and 2020 with six European countries (Germany, Belgium, France, Norway, Finland, Sweden). It is found that there was a significant disparity in index scores between Türkiye and these European countries in the 2015 MIPEX report; however, this difference has narrowed in the 2020 report. Türkiye’s migrant integration policy rankings have improved substantially (+17), according to the 2020 report. As a result, Türkiye’s policy indicator has increased from “slightly unfavourable” to “halfway favourable”. Although this score and increase are not at the desired level, they may indicate comprehensive improvements in Türkiye’s integration policies in the following report.
AtıfOpenAlex2TR Dizin3
İncele - MakaleAçık Erişim2022Scopus SJRQ1Assessment of Climate Change Impact on Discharge of the Lakhmass Catchment (Northwest Tunisia)
Ben Nsir, Siwar; Jomaa, Seifeddine; Yıldırım, Ümit; Zhou, Xiangqian; D’Oria, Marco; Rode, Michael; Khlifi, Slaheddine
The Mediterranean region is increasingly recognized as a climate change hotspot but is highly underrepresented in hydrological climate change studies. This study aims to investigate the climate change effects on the hydrology of Lakhmass catchment in Tunisia. Lakhmass catchment is a part of the Medium Valley of Medjerda in northwestern Tunisia that drains an area of 126 km². First, the Hydrologiska Byråns Vattenbalansavdelning light (HBV-light) model was calibrated and validated successfully at a daily time step to simulate discharge during the 1981–1986 period. The Nash Sutcliffe Efficiency and Percent bias (NSE, PBIAS) were (0.80, +2.0%) and (0.53, −9.5%) for calibration (September 1982–August 1984) and validation (September 1984–August 1986) periods, respectively. Second, HBV-light model was considered as a predictive tool to simulate discharge in a baseline period (1981–2009) and future projections using data (precipitation and temperature) from thirteen combinations of General Circulation Models (GCMs) and Regional Climatic Models (RCMs). We used two trajectories of Representative Concentration Pathways, RCP4.5 and RCP8.5, suggested by the Intergovernmental Panel on Climate Change (IPCC). Each RCP is divided into three projection periods: near-term (2010–2039), mid-term (2040–2069) and long-term (2070–2099). For both scenarios, a decrease in precipitation and discharge will be expected with an increase in air temperature and a reduction in precipitation with almost 5% for every +1 °C of global warming. By long-term (2070–2099) projection period, results suggested an increase in temperature with about 2.7 °C and 4 °C, and a decrease in precipitation of approximately 7.5% and 15% under RCP4.5 and RCP8.5, respectively. This will likely result in a reduction of discharge of 12.5% and 36.6% under RCP4.5 and RCP8.5, respectively. This situation calls for early climate change adaptation measures under a participatory approach, including multiple stakeholders and water users.
AtıfScopus11WoS11OpenAlex14İncele - MakaleAçık Erişim2022Scopus SJRQ2Existence and multiplicity of solutions for p(.)-Kirchhoff-type equations
Ayazoğlu, Rabil; Akbulut, Sezgin; Akkoyunlu, Ebubekir
This paper is concerned with the existence and multiplicity of solutions of a Dirichlet problem for p(.) - Kirchhoff-type equation (Formula Presented). Using the mountain pass theorem, fountain theorem, dual fountain theorem and the theory of the variable exponent Sobolev spaces, under appropriate assumptions on f and M, we obtain results on existence and multiplicity of solutions
AtıfScopus9WoS9OpenAlex9İncele - MakaleAçık Erişim2022Scopus SJRQ1Easy-to-Implement Ultra-Thin, Wide-Band, and Multi-Functional Polarization Converter for K and Ka Band Applications
Coskun, Aykut; Hasar, Ugur Cem; Ozmen, Ahmet; Ertugrul, Mehmet
This article presents an ultrathin, broadband, and multipurpose polarization converter design utilizing an anisotropic metasurface for K and Ka band. The proposed polarization converter, which has a single layer F4B as a substrate material with hexagonal-shaped metallic solid structure along with hexagonal ring with diagonal splits on its front surface and a background (a completely metallic surface) on its back, works as not only a circular polarization converter but also a linear polarization to circular polarization (LP to CP) converter. Its polarization conversion rate (PCR) is more than 90% in the frequency range from 17.87 to 43.15 GHz, covering all of the K and Ka bands with a relative bandwidth of 83% under normal incidence case. For incidence angles up to 40°, PCR is observed to be greater than 75% in almost all of the K and Ka bands (except for the frequency range between 24.72 and 27.11 GHz). Furthermore, the proposed design has LP to CP in two different frequency bands, 16.23–16.74 GHz and 48.6–48.8 GHz. The proposed polarization converter, as advantages, is low cost, ultra thin, broadband, and facile, which can be useful in linear cross polarization conversion in K and Ka band applications.
AtıfScopus10WoS9OpenAlex10İncele - MakaleAçık Erişim2022Scopus SJRQ2Pastinaca vanensis (Apiaceae), a new species from Turkey
Demir, Ibrahim; Sefali, Abdurrahman; Yapar, Yakup
Pastinaca vanensis is described as a new species from the Başkale district (Van-Turkey). Its diagnostic characteristics are discussed, and taxonomic comments are presented. P. vanensis is related to Pastinaca zozimoides but differs from this species in indumentum, petal color, and mericarp features. Data on ecology and the conservation status of the new species are also presented. A distribution map of the new and related species is provided.
- MakaleAçık Erişim2022Prospective primary school teachers' change in attitudes and anxiety profiles during their preparation program
Sarikaya, İsmail; Sökmen, Yavuz
The sensory characteristics of teachers and prospective teachers directly affect them and their teaching activities. It is important to examine in detail how the attitude and anxiety levels of prospective primary teachers towards the teaching profession change throughout the years they receive education. This study aimed to cross-sectionally and longitudinally examine whether the attitude and anxiety levels of prospective primary school teachers towards the teaching profession changed throughout their undergraduate education and determine the factors/experiences triggering this change in accordance with the qualitative data obtained. A cross-sectional study was carried out with the participation of 1085 prospective teachers. For the longitudinal study, quantitative and qualitative data were collected together from 57 prospective teachers over a period of four years. Attitude scale regarding teaching and occupational anxiety scale for prospective teachers were used for data collection. The results of both the cross-sectional and longitudinal studies showed that the attitude scores of the participants did not change in accordance with the grade level. However, it was determined that the anxiety scores of the participants decreased as the grade level increased. The results revealed that this change is statistically significant. The qualitative results revealed that internship practices and direct experiences had a great influence on this change.
AtıfOpenAlex1İncele - Kitap BölümüYalnız künye2022Safety Aspects of Non-Thermal Processing Applications for Fruit and Vegetable Processing
Devecioglu, Dilara; Dikmetas, Dilara Nur; Oztekin, Sebahat; Karbancioglu-Guler, Funda
This chapter primarily examines the most widely applied non-thermal processes to fruits and vegetables from a food safety perspective. In addition to microbial contaminants, which cause the consumption of these food products to be risky, pesticides, toxins, and process contaminants are included in the relevant headings. It is seen that although the results vary according to the process condition and the studied product, each applied process offers significant advantages in itself. The effectiveness of cold plasma, irradiation, high hydrostatic pressure, ozone, pulsed electric field, pulsed light, supercritical carbon dioxide, and ultrasound processes is emphasized in ensuring food safety for fruits and vegetables. In addition, parameters such as quality and sensory that may be affected by the process application are also mentioned, and the potential of processes for application is explained.
- MakaleAçık Erişim2022Scopus SJRQ1Improvement of mechanical and transport properties of reactive powder concrete using graphene nanoplatelet and waste glass aggregate
Arslan, S.; Öksüzer, N.; Gökçe, H.S.
In this study, the use of graphene nanoplatelet (GNP) and waste glass aggregate (WGA) was investigated to improve the mechanical and transport properties of reactive powder concrete (RPC), which is an ultra-high strength concrete type. The co-addition of 0.14% GNP and 30% WGA resulted in a significant increase in the compressive strength of RPC from 192.9 to 258.9 MPa and flexural strength from 16.2 to 38.7 MPa. In the study, the most significant improvement (138.6%) was obtained for the flexural strength values of RPC. Considering the strength aspects, the relevant amounts of GNP and WGA enable production of RPC ensuring a conducted electrical charge of less than 100 Coulombs; that is, with negligible chloride ion permeability. Accordingly, the highest improvement (59.8%) after flexural strength was found for the resistance of the specimens against chloride ion penetrability. In conclusion, the findings of this study show that eco-efficient production of RPC with superior mechanical and durability characteristics can be achieved using GNP and WGA, with lower cement consumption per unit value of these studied characteristics, reaching 59%.
AtıfScopus31WoS26OpenAlex32İncele - MakaleYalnız künye2022INEQUALITIES FOR (α, m1, m2)-ARITHMETIC GEOMETRICALLY CONVEX FUNCTIONS VIA BY GAMMA AND INCOMPLETE GAMMA FUNCTIONS
Kadakal, Huriye
In this study, we introduce concepts of (α, m1, m2)-arithmetic geometrically (AG) convex functions and establish some Hermite-Hadamard type inequalities of these classes of functions via gamma and incomplete gamma function.
- MakaleYalnız künye2022Scopus SJRQ2Investigation of the Treatment of Olive Mill Wastewater by Electrooxidation
Kul, Sinan; Boncukcuoğlu, Recep; Ekmekyapar Torun, Fatma; Reçber, Züleyha; Sözüdoğru, Onur; Aladağ, Erdinç
The electrooxidation process, one of the advanced oxidation processes, is one of the effective treatment processes used in treating various industrial wastewaters. This study investigated the treatment of olive mill wastewater using the electrooxidation process. This study includes the effects of different experimental parameters on chemical oxygen demand and total phenol removal efficiencies in olive mill wastewater. Ti/IrO2/RuO2 mesh plates as anode material and Ti mesh plates as cathode material were used in the study. The effects of stirring rate, dilution factor, pH, type of support electrolyte, the concentration of support electrolyte, and current density on chemical oxygen demand and total phenol removal efficiencies were examined in the experiments using a batch reactor. The study found that the chemical oxygen demand and total phenol removal rates were 96.93% and 100% under optimum conditions, respectively. According to the treatment data obtained, it can be said that olive mill wastewater can be treated by the electrooxidation method and can be proposed as a pretreatment system before entering biological treatment.
AtıfScopus8WoS6OpenAlex8İncele - Derleme MakaleAçık Erişim2022Scopus SJRQ1Impact of different microwave treatments on food texture
Kutlu, Naciye; Pandiselvam, Ravi; Saka, Irem; Kamiloglu, Aybike; Sahni, Prashant; Kothakota, Anjineyulu
Electromagnetic waves are frequently used for food processing with commercial or domestic type microwave ovens at present. Microwaves cause molecular movement by the migration of ionic particles or rotation of dipolar particles. Considering the potential applications of microwave technique in food industry, it is seen that microwaves have many advantages such as saving time, better final product quality (more taste, color, and nutritional value), and rapid heat generation. Although microwave treatment used for food processing with developing technologies have a positive effect in terms of time, energy, or nutrient value, it is also very important to what extent they affect the textural properties of the food that they apply to. For this purpose, in this study, it has been investigated that the effects of commonly used microwave treatments such as drying, heating, baking, cooking, thawing, toasting, blanching, frying, and sterilization on the textural properties of food. In addition, this study has also covered the challenges of microwave treatments and future work. In conclusion, microwave treatments cause energy saving due to a short processing time. Therefore, it can be said that it affects the textural properties positively. However, it is important that the microwave processing conditions used are chosen appropriately for each food material.
AtıfScopus121WoS99OpenAlex125
İncele - MakaleAçık Erişim2022Scopus SJRQ1The impact of ozone treatment on whey concentrate on the flow behaviour, functional and microbiological characteristics of whey powder
Sert, Durmuş; Mercan, Emin
The impact of ozone treatment (OT) for 0 (control) 30, 60, 90 and 120 min to whey concentrate (WC) on powder flow, physicochemical, functional, and microbiological characteristics of whey powders (WPs) was examined. OT decreased the cohesiveness of WC, whereas the firmness, consistency and index of viscosity were not affected. OT caused higher L∗ and b∗ values in WP and improved the solubility and foaming capacity, but decreased foaming stability and bulk density. OT increased the mean particle size of WP samples depending on the treatment time. Higher treatment time of OT resulted in a lower cohesion index. OT decreased caking ability of WP samples and increased flow stability. Compaction coefficient and cohesion index depending on increasing test speed, were generally reduced with higher OT. Overall, powder flow analyses revealed that OT of WC resulted in improved flow behaviour of WP. The microbial load of WP was reduced using OT.
AtıfScopus14WoS10OpenAlex16İncele - MakaleYalnız künye2022Scopus SJRQ2Application of artificial neural networks in the analysis of the continuous contact problem
Yaylacı, Ecren Uzun; Öner, Erdal; Yaylacı, Murat; Özdemir, Mehmet Emin; Abushattal, Ahmad; Birinci, Ahmet
This paper investigates the artificial neural network (ANN) to predict the dimensionless parameters for contact pressures and contact lengths under the rigid punch, the initial separation loads, and the initial separation distances of a contact problem. The problem consisted of two elastic infinitely layers (EL) loaded by means of a rigid cylindrical punch and resting on a half-infinite plane (HP). Firstly, the problem was formulated and solved theoretically using the Theory of Elasticity (ET). Secondly, the contact problem was extended based on the ANN. External load, the radius of punch, layer heights, and material properties were created by giving examples of different values used at the training and test stages of ANN. Finally, the accuracy of the trained neural networks for the case was tested using 134 new data, generated via ET solutions to determine the best network model. ANN results were compared with ET results, and well agreements were achieved.
AtıfScopus62WoS60OpenAlex13İncele - MakaleYalnız künye2022Scopus SJRQ1Performance of fly ash-blended Portland cement concrete developed by using fine or coarse recycled concrete aggregate
Şimşek, O.; Pourghadri Sefidehkhan, H.; Gökçe, H.S.
The recycling of concrete and industrial wastes in the production of new concrete structures has increased its share due to the growing environmental concerns of the world. In this study, the use of recycled concrete aggregate at various replacement amounts (0–100 %) was investigated to be fine or coarse aggregate sources instead of crushed natural aggregate to understand better its effects on the dimensional stability and durability aspects of fly ash-blended Portland cement concrete. In the presence of recycled concrete aggregate, fly ash was very important for eliminating possible mechanical losses of concrete at 90 days. The use of coarse recycled concrete aggregate resulted in better compressive strength values of concrete exposed to with and without wetting–drying and freezing-thawing cycles when compared to fine ones. While the free drying shrinkage of concrete increased at significant amounts (68 and 79 %) for fine and coarse recycled concrete aggregate, the restrained drying shrinkage crack widths were reduced up to by 13.5 %. In conclusion, it should be noted that the amount and size of recycled concrete aggregate need to be designed by considering the residual quality and dimensional stability of concrete, which exposes weathering actions in place.
AtıfScopus57WoS50OpenAlex54İncele - MakaleYalnız künye2022Scopus SJRQ2Organic acids and their derivatives: minor components of bee pollen, bee bread, royal jelly and bee venom
Çelik, Saffet; Gerçek, Yusuf Can; Özkök, Aslı; Ecem Bayram, Nesrin
This study aimed to determine the organic acid profiles of bee products such as royal jelly, bee venom, bee pollen and bee bread, as well as to verify the method employed in the study. For this purpose, royal jelly, bee venom, bee pollen and bee bread samples were obtained from different locations, and 55 individual organic acids were determined using the liquid chromatography technique coupled with tandem mass spectrometry (LC–MS/MS), and method verification was carried out. Moreover, principal component and hierarchical cluster analyses were performed to compare the organic acid content of bee products and evaluate the overall variation. According to the results, the order of the total organic acid profiles was determined as bee venom (4141 mg/kg-6260 mg/kg) > bee bread (736–990 mg/kg) > bee pollen (837–1503 mg/kg) > royal jelly (192–1947 mg/kg). Although citric acid (423–41,519 mg/kg) was dominantly detected in samples among the organic acids screened. It is thought that the results obtained will contribute to scientific studies carried out to determine the authenticity of bee products and their standardization.
AtıfScopus24WoS21OpenAlex26İncele - MakaleAçık Erişim2022Scopus SJRQ1Optimization of Ultrasonic Extraction of Nutraceutical and Pharmaceutical Compounds from Bee Pollen with Deep Eutectic Solvents Using Response Surface Methodology
Çelik, Saffet; Kutlu, Naciye; Gerçek, Yusuf Can; Bayram, Sinan; Pandiselvam, Ravi; Bayram, Nesrin Ecem
In recent years, there has been increasing interest in green extraction methods and green solvents due to their many advantages. In this study, the effects of an ultrasonic extraction method and deep eutectic solvents (DESs) on the extraction of different bioactive substances from bee pollen were investigated. In this regard, the effects of process variables such as the molar ratio of the DES (1, 1.5, and 2), sonication time (15, 30, and 45 min), and ultrasonic power (90, 135 and 180 W) on total individual amino acids, total individual organic acids, and total individual phenolic compounds were investigated by response surface methodology (RSM). The optimal conditions were found to be a molar ratio of 2, sonication time of 45 min, and ultrasonic power of 180 W (R2 = 0.84). Extracts obtained via the maceration method using ethanol as a solvent were evaluated as the control group. Compared with the control group, the total individual amino acid and total individual organic acid values were higher using DESs. In addition, compounds such as myricetin, kaempferol, and quercetin were extracted at higher concentrations using DESs compared to controls. The results obtained in antimicrobial activity tests showed that the DES groups had broad-spectrum antibacterial effects against all bacterial samples, without exception. However, in yeast-like fungus samples, this inhibition effect was negligibly low. This study is the first to evaluate the impact of DESs on the extraction of bioactive substances from bee pollen. The obtained results show that this innovative and green extraction technique/solvent (ultrasonic extraction/DES) can be used successfully to obtain important bioactive compounds from bee pollen.
AtıfScopus33WoS28OpenAlex36İncele - MakaleAçık Erişim2022Scopus SJRQ1Emerging trends of online assessment systems in the emergency remote teaching period
Topuz, Arif Cem; Saka, Eda; Fatsa, Ömer Faruk; Kurşun, Engin
The COVID-19 pandemic caused many educational institutions in the world to switch to the distance education process, and this process was called "Emergency Remote Teaching". This urgent transition process has caused many problems in educational environments. One of the problems is the subject of measurement and evaluation. Along with the pandemic, many institutions have used various online assessment systems to make measurements and evaluations online, and researchers have conducted research on these online assessment systems. This research focus on the features of the online assessment systems and aims to examine the trends towards the prominent features of the online assessment systems in the Emergency Remote Teaching period. For this purpose, the prominent online assessment systems have been determined by systematically analyzing academic studies published in 2020, and answers have been sought to the following research questions: (1) which platforms they support, (2) which security features they have, and (3) what common features they have. Identifying trends in the characteristics of online assessment systems is expected to guide practitioners, decision-makers, researchers, and system developers in the process of selecting and/or developing an online assessment system for use in online measurement and evaluation.
AtıfScopus37WoS20OpenAlex45İncele - Derleme MakaleAçık Erişim2022Scopus SJRQ3SARS-CoV-2 Infection and Candidate Biomarkers
Uzunçakmak, Sevgi Karabulut
Severe acute respiratory syndrome coronavirus 2 is a virus that can still infect individuals and whose deadly effects continue despite the current vaccines and drugs. Since 2019, many studies on the pathogenesis of the disease have been completed and continue to be done. In addition to the diagnosis and treatment of the disease, many molecules that can be markers of the disease have been investigated. In the early stages of the pandemic, many nonspecific and infection-related laboratory findings and chest computed tomography were used to obtain information about the diagnosis of the disease. The more individual molecules became associated with the disease yet. The purpose of this review is to summarize the impact and role of many molecules associated with coronavirus disease-2019 infection that have been previously used and newly revealed. Numerous studies are summarized in this review. The obtained data show that previously used laboratory findings and new potential biomarkers are not specific to the disease. New potential biomark-ers have been associated with the severity of the disease itself, as can be seen with lung imaging and even with routine laboratory findings. One of the important points that are seen frequently in studies is that the effectiveness of these molecules has been shown not only in coronavirus disease-2019 infection but also in many other diseases. This removes the pathogenesis of the disease from being a unique mechanism created by the Severe acute respiratory syndrome coronavirus 2 and provides a general perspective formed by viral or bacterial infections. However, there are still many molecular changes that need to be investigated. Future studies will continue to update themselves with the mutations of the virus.
AtıfScopus1WoS1İncele - MakaleAçık Erişim2022Scopus SJRQ1Double adaptive power allocation strategy in electric vehicles with battery/supercapacitor hybrid energy storage system
Çorapsız, Muhammed Reşit; Kahveci, Hakan
This paper proposes a new energy management strategy (EMS) for electric vehicles (EVs) with battery/supercapacitor hybrid energy storage systems (HESS). Firstly, the battery/supercapacitor HESS configuration and obtaining the load current from the driving cycle are comprehensively explained. Secondly, fixed and adaptive frequency-based (AFB) EMS are discussed in detail. In the proposed method, the current demanded by the load is separated into low and high-frequency components with the help of an adaptive low-pass filter (A-LPF). In addition, adaptive battery current (ABC) is generated according to the supercapacitor (SC) state of charge (SoC), and a double adaptive power allocation strategy is performed. The proposed method is compared with the AFB-EMS for load currents, load powers, DC link voltages, filter cut-off frequencies, battery, and SC SoCs on the UDDS driving cycle. When the obtained results were evaluated together, it was observed that the proposed method completed the driving cycle with a higher battery SoC and realized the adaptive cut-off frequency in a narrower band.
AtıfScopus14WoS12OpenAlex14İncele