Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Dertli, Enes(117)
- Kaya, Yunus(51)
- Şahin, Engin(48)
- İspirli, Hümeyra(47)
- Özen, Soner(46)
- Şenay, Volkan(45)
- Pat, Suat(44)
- Can, Zehra(39)
- Bayraktar, Bülent(37)
- Bayram, Sinan(37)
- Korkmaz, Şadan(36)
- Cuce, Erdem(35)
- Ecem Bayram, Nesrin(33)
- Kutlu, Naciye(33)
- Yilmaz, Mustafa Tahsin(32)
- Artar, Musa(31)
- Ertugrul, Mehmet(30)
- Öner, Erdal(30)
- Ayata, Ümit(29)
- Hasar, Ugur Cem(29)
- Esmer, Yusuf(28)
- Mercan, Emin(27)
- Cuce, Pinar Mert(26)
- Özdemir, Akın(25)
- Çolak, Murat(24)
- Bayram, Ozkan(23)
- Kamiloğlu, Aybike(23)
- Sert, Durmuş(22)
- Ayazoglu, Rabil(21)
- Abdioglu, Murat(20)
- Bayram, Nesrin Ecem(20)
- Kadakal, Mahir(20)
- Kara, Yakup(20)
- Kizil, Hamit Emre(20)
- Tozlu, Alperen(20)
- Birinci, Ahmet(19)
- Gerçek, Yusuf Can(19)
- Battal, Fetullah(18)
- Dirican, Ebubekir(18)
- Ergün, Mustafa(18)
Yayınlar
- MakaleYalnız künye2020Scopus SJRQ3The quality characteristics and shelf life of probiotic ice cream produced with saruc and Saccharomyces boulardii
Salik, M.A.; Arslaner, A.
Ten types of classic and probiotic (Saccharomyces boulardii) ice cream were produced using different mixture combinations containing 10 or 20% Saruc, a traditional Turkish snack containing dried Cimin grape, Kemah walnut, and 0.5 or 1.0% grape seed. Physical, chemical, and microbiological analyses conducted during the storage period (days 1, 15, 30 and 60 at-20 ± 1°C) were used to assess the probiotic shelf life and quality properties of the ice cream samples. The desired therapeutic effects of S. boulardii levels in probiotic products were from 106 to 108 CFU/g during storage. The results revealed that Saruc, grape seed, and S. boulardii had a significant effect on the quality properties of ice cream samples. Titration acidity, total dry matter, fat, protein, ash, glucose, fructose, total sugar, viscosity, first dripping time, complete melting time, a& value, and calorie (kcal) values increased with increasing concentration of Saruc. However, pH, sucrose, melting rate, L&, and b& values decreased. Grape seed increased titration acidity, protein, fat, ash, viscosity, first dripping time, complete melting time, and calorie values in all samples, but decreased the pH values. The addition of Saruc and grape seed positively affected the growth and viability of S. boulardii at levels from 106 to 108 CFU/g during storage. Taking all the quality parameters into consideration, it was shown that with the addition of Saruc, grape seed, and S. boulardii, new functional ice creams with high nutritional value could be produced.
AtıfScopus14
İncele - MakaleYalnız künye2020Scopus SJRQ2Honeys from some different regions of Azerbaijan: bioactive characteristics based on phenolic profile and antioxidant activity
Degirmenci, Atiye; Can, Zehra; Boyraci, Gulsum Merve; Yildiz, Oktay; Asadov, Elsevar; Kolayli, Sevgi
Azerbaijan is an important region for the beekeeping and honey industry. Biochemical characteristics of eleven honey samples from different regions of Azerbaijan were analyzed through measuring electrical conductivity, optical activity, moisture content, proline and diastase number. Phenolic components are analyzed by reverse-phase high-performance liquid chromatography (RP-HPLC) with UV–Vis double beam detector. Sugars profiles of samples were carried out using HPLC with a refractive index detector (RID). Total phenolic content (TPC), ferric reducing antioxidant power (FRAP) and 2,2-diphenyl-1-picryhydrazyl (DPPH) free radical scavenging activity were measured with the aim of gathering information on the antioxidant power of samples. Biochemical and antioxidant characteristics are also supported with melissopalynological data. Conductivity ranged between 0.32 and 0.82 mS cm−1, moisture 14.52 and 20.78%, proline 314.34 and 1077.21 mg kg−1, diastase 13.05 and 22.19. Azerbaijan honeys exhibited levorotatory properties. Total phenolic content varied from 18.82 to 154.75 mg gallic acid equivalent per 100 g honey. The results confirm that physico-chemical and biologically active properties of Azerbaijan honeys are affected by the flora and geographical variations.
AtıfScopus17WoS16OpenAlex20
İncele - MakaleYalnız künye2020Scopus SJRQ4Innovative flow risk assessment with climate change perspective in Yesilirmak Basin
Serancam, Ugur; Dabanli, Ismail
Surface temperature increase due to global warming results in polar ice melting, snow cover thinning, changes in precipitation anomaly. All these phenological effects alert engineers, planners and administrators to be more sensitive against climate change-based risk effects on water structures. Vulnerability to natural disasters such as floods and droughts are expected to occur more frequent than past. Therefore, design and potential evaluation of water structures such as transmission channels, water wells, dams and hydraulic power generation facilities need to be re-evaluation. This re-evaluations procedure must be updated by taking into consideration climate change impacts with their risk assessments. For this purpose, the climate change-based risk levels are calculated from historically available records through possible trend tendencies, which are expressed in terms of trend slope. It has been observed that, in general, the climate change impacts are not significant on precipitation and runoff. This is due to the low trend slopes in the standardized hydro-meteorological time series. This point has been documented for Yesilirmak basin, where the climate change impact is very limited.
AtıfScopus1İncele - MakaleYalnız künye2020Scopus SJRQ1Terrorism - workers’ remittances nexus: empirical evidence from Turkey
Arİ, Yılmaz Onur; Bello, Ibrahim
The paper examines the impacts of remittances on terrorism for Turkish economy by using annual time series data covering the period of 1990-2019. Autoregressive Distributed Lag (ARDL) was used in the application of econometric method. To ensure robustness of results, the study accounts for structural breaks in the unit root test and the co-integration analysis. The results obtained indicated that remittances flows to Turkey have a positive and significant effect on terrorism. This is in line with the empirical evidence that finances through remittances can promote terrorism in a country. The study also concludes that unemployment has strong a correlation in promoting terrorism in Turkish economy and that persistent unemployment can cause economic inequality, poverty, social dislocation, unrest, and conflict such as terrorism, which has a negative impact on subsequent long-run economic growth. Besides, trade openness shows a negative but significant effect, which indicates that trade openness has a little influence in promoting terrorism.
AtıfScopus2İncele - MakaleYalnız künye2020Scopus SJRQ3Some harmonic problems on the tangent bundle with a berger-type deformed sasaki metric
Altunbas, Murat; Simsek, Ramazan; Gezer, Aydin
Let (M2k, ϕ, g) be an almost anti-paraHermitian manifold and (T M, gBS) be its tangent bundle with a Berger type deformed Sasaki metric gBS . In this paper, we deal with the harmonicity of the canonical projection π: T M → M and a vector field ξ which is considered as a map ξ: M → T M.
AtıfScopus9İncele - MakaleAçık Erişim2020Scopus SJRQ3Effect of probiotics supplementation on adipokine profile (Visfatin, adiponectin and chemerin), intestinal (citrulline) and thyroid function in japanese quail subjected to heat stress; [Einfluss einer probiotischen futterergänzung auf das adipokin-profil (Visfatin, adiponectin und chemerin), und die darm- (citrullin) und schilddrüsenfunktion japanischer wachteln unter hitzestress]
Bayraktar, B.; Tekce, E.
In this study, we aimed to determine the effect of probiotic supplementation of Lactobacillus reuteri E81 (LRE; 200, 400, 600 mg/kg) to the diets of Japanese quail (Coturnix coturnix japonica) reared under heat stress (HS) on serum adipokine (visfatin, adiponectin and chemerin), intestinal (citrulline) and thyroid hormone levels. On day 7 of the trial, the animals were assigned to 8 groups [Control temperature (CT): control (C, without LRE supplementation), LRE-200, LRE-400 and LRE-600 and HS: control (HSC), SLRE-200, SLRE-400 and SLRE-600], each composed of 56 animals of equal body weight. Each group was divided into 4 subgroups withg 14 animals per compartment. During the experiments, the temperature applied to the CT-groups C, LRE-200, LRE-400 and LRE-600 was 25°C and to the HS-groups HSC, SLRE-200, SLRE-400 and SLRE-600 was 37°C. At the end of the study (days 21 and 42), a dose-dependent decrease in citrulline, chemerin, adiponectin, and thyroid hormones and a dose-dependent increase in the visfatin hormone level (p < 0.01) due to LRE supplementation were observed in the HS and CT groups compared to its control. In conclusion, the present study showed that dietary supplementation with 600 mg/kg of LRE affected serum chemerin, adiponectin, T3, T4, TSH and visfatin levels in Japanese quail raised under heat stress (p < 0.001).
AtıfScopus6WoS5OpenAlex2İncele - MakaleYayıncıda açık erişim2020Scopus SJRQ2Effects of an Essential Oil Mixture Added to Drinking Water for Temperature-Stressed Broilers: Performance, Meat Quality, and Thiobarbituric Acid-Reactive Substances
Tekce, E.; Çınar, K.; Bayraktar, B.; Takma, Ç.; Gül, M.
This study investigated the effects of an essential oil mixture (EOM; Eucalyptus globulus labill, Tymus vulgaris, Cymbopogon nardus, and Syzgium aromaticum) added to drinking water on temperature-stressed broilers. The performance parameters (body weight, average daily weight, feed intake, and feed conversion ratio), meat quality, and thiobarbituric acid-reactive substances (TBARS) were evaluated. In a 42-d study, 400 Ross-308 male chickens (1-d-old) were randomly assigned to 8 different groups (n = 50), each containing 4 subgroups (n = 8) (22°C Control (C), C + 250 mL/1,000 L, C + 500 mL/1,000 L, C + 750 mL/1,000 L), 36°C (stress control (SC), SC + 250 mL/1,000 L, SC + 500 mL/1,000 L, SC + 750 mL/1,000 L). Adding 750 mL/1,000 L at 22°C and 250 mL/1,000 L at 36°C was more beneficial to the fattening performance parameters than those in the control group. EOM reduced liver weight but increased abdominal fat in the SEOM-250 groups but did not affect other organ weights. EOM had no effect on the TBARS or the b* color parameter while it augmented the a* and L* coordinates of meat color.
AtıfScopus29WoS25OpenAlex23İncele - MakaleAçık Erişim2020Scopus SJRQ2Switching linear quadratic Gaussian control of a flexible blade structure containing magnetorheological fluid
Sivrioglu, Selim; Bolat, Fevzi Cakmak
The present study suggests a new active control structure with a switching algorithm for control current of the electromagnetic actuator to suppress vibrations of a flexible blade element containing magnetorheological (MR) fluid. An identification model between MR fluid inside the blade and the electromagnetic actuator is utilized to derive the force equation. Since only one electromagnet is employed to suppress the blade vibration, a single-sided control actuation occurs in the proposed system. Therefore, the pulling force used for vibration control is generated by the actuator when the blade moves to downward direction. A switching linear quadratic Gaussian (LQG) controller that produces always a positive control input is designed to attenuate the blade vibrations. The LQG controller with switching is experimentally implemented under the impact and steady-state aerodynamic disturbances. The results of experiments show that the proposed switching controller is effective to attenuate vibrations of the flexible blade element.
AtıfScopus15WoS11OpenAlex13İncele - MakaleYalnız künye2020Scopus SJRQ1Probiotic properties of lactic acid bacteria strains isolated from pastırma
Topçu, Kübra Cinar; Kaya, Mükerrem; Kaban, Güzin
In this study, the probiotic properties of 80 lactic acid bacteria (LAB) strains isolated from pastırma, a dry-cured meat product, were investigated. For this purpose, strains were investigated for their resistance to bile salt and hydrophobicity abilities. In 6 strains selected as a result of these analyses, development at high salt concentrations, auto-aggregation and co-aggregation, resistance to low pH, and adhesion analyses were performed. The growth percentage of all strains decreased with increasing bile salt concentration at both 25 °C and 37 °C. P. pentosaceus K7, K41, K44, K51 and K81 and P. acidilactici K99 gave the highest values in terms of hydrophobicity ability. The highest auto-aggregation and the highest co-aggregation were found in P. pentosaceus K41 (17.62%) and P. pentosaceus K44 strain (26.23%), respectively. These six strains showed tolerance to high acidity even at pH 2. The strains significantly maintained their viability in the simulated gastric and intestinal fluids. Furthermore, the strains had low adhesion capacity in Caco-2 and HT-29 cell lines and generally showed resistance under gastrointestinal system conditions. As a result, P. pentosaceus K44, P. acidilactici K99 and P. pentosaceus K41 could be considered as probiotic strains.
AtıfScopus55WoS48OpenAlex50İncele - BildiriYalnız künye2020RoutingChain: A Proof-of-Concept Model for a Blockchain-Enabled QoS-Based Inter-AS Routing in SDN
Karakus, Murat; Guler, Evrim
A Software-Defined Networking (SDN) architecture and OpenFlow can help network administrators to provide end-to-end (E2E) Quality of Service (QoS)-guaranteed paths for flows among networks while providing finer-granular flow management along with global network view. In this context, we introduce a proof-of-concept for a blockchain-enabled QoS-based inter-Autonomous System (AS) routing framework, RoutingChain, that blends a QoS-concerned routing model and blockchain technology. This study's contributions can mainly be stated in five-fold: (i) Competitors-tailored routing coordination framework, (ii) eliminating centralized mediators while coordinating QoS-based inter-AS routing, (iii) an emerging use-case for blockchain technology in networking, (iv) reducing the number of QoS signaling-based message overhead, and (v) mitigating privacy/security concerns in inter-AS routing. Experimental results indicate that the blockchain technology can be applied on E2E QoS-based routing among networks. To the best of our knowledge, this is the first study exploiting the merits of blockchain technology to establish a novel coordination framework for QoS-enabled inter-AS routing in SDN.
AtıfScopus10WoS6OpenAlex12İncele - MakaleYayıncıda açık erişim2020Scopus SJRQ3Determination of physicochemical and microbiological properties and fatty acid composition of butter produced in Trabzon, Turkey
Akgül, Halil İbrahim; Şengül, Mustafa; Ürkek, Bayram; Kotan, Tuba Erkaya
In this study, the some physicochemical properties, fatty acid compositions and microbiological properties of butter samples were studied. Butter samples (n = 30) were randomly collected from different local markets. Thus, butter samples were evaluated in terms of Turkish regulations, food safety and quality. The mean values of the butter samples for peroxide value (PV), iodine value (IV), saponification value (SV), Polenske value, Reichert-Meissl (RM) and Refractive index (RI) values were determined as 0.85 mEqO2 kg-1, 30.03, 220.09, 1.30, 25.60 and 1.4611, respectively. The moisture and fat values were not in harmony with Turkish Food Codex Butter, Other Milk Fat Based Spreadable Products and Anhydrous Milkfat Notification (the highest moisture content 16%, the lowest fat content 80%) in 23 and 13 butter samples, respectively. The salt values were coherent with Turkish Food Codex in all butter samples. Conjugated linoleic acid (CLA) rate of the butter samples was ranged from 0.15 to 1.32%. The average values of coliforms, total aerobic mesophilic bacteria (TAMB) and mould and yeasts counts were determined as 1.67, 6.33 and 5.22 log CFU g-1, respectively.
AtıfScopus13WoS10İncele - MakaleYayıncıda açık erişim2020Scopus SJRQ1Temperature dependent current- and capacitance-voltage characteristics of W/n-Si structures with two-dimensional WS2 and three-dimensional WO3 interfaces deposited by RF sputtering technique
Baltakesmez, A.; Tekmen, S.; Güzeldir, B.
In this study, tungsten disulfide (WS2) and tungsten trioxide (WO3) thin films are deposited on n-Si by RF sputtering technique. The optical, morphological and structural characteristics of these films are investigated. The XRD patterns showed that highly crystallinity have been obtained with dominant characteristic diffraction peaks of the WS2 and WO3. The SEM images show that these films are nearly uniform and covered all surface of substrates. Furthermore, the WS2 film has two-dimensional (2D) vertical layers while the WO3 has three-dimensional (3D) structure. From the XPS spectra, it revealed that the peaks confirmed the formation of WS2 and WO3 phases. The Raman spectra presented that different vibrational modes and phases are characteristics of the WS2 and WO3 thin films. Electrical properties of W/n-Si metal-semiconductor (MS) and W/WS2/n-Si and W/WO3/n-Si metal-interfacial layer-semiconductor (MIS) diodes are investigated using current-voltage (I-V) and capacitance-voltage (C-V) characteristics at various temperatures. It was found that I-V and C-V characteristics are strongly dependent on temperature and the interfacial WS2 and WO3 layers are significant roles for the electrical properties of W/WS2/n-Si and W/WO3/n-Si devices.
AtıfScopus19WoS20OpenAlex17İncele - MakaleAçık Erişim2020Scopus SJRQ2Investigations of Strain Rate Effects on the Mechanical Properties of Hybrid Composite Laminate Under Varying Temperatures
Erbayrak, Engin; Gumus, Beril Eker; Yuncuoglu, Ercument Ugur; Kahraman, Yusuf
The mechanical behavior of hybrid composite laminates under varying strain rates and temperatures was investigated in this study. The hybrid composite laminate is constituted as a sequential stacking sequence of plain-woven carbon-fiber-reinforced epoxy (CFRE) and plain-woven glass-fiber-reinforced epoxy (GFRE) laminates. Vacuum-assisted resin transfer molding (VARTM) process was used to fabricate the composite laminates. Hybrid composite laminates (HCGFRE) were tested under four different strain rates (0.05 min−1, 0.5 min−1, 2.5 min−1, 5 min−1) and three different temperatures (RT, 60 °C, 100 °C). Microstructure analysis was performed to observe the voids, fiber delamination and matrix failure occurring in the composite laminate. In numerical analyses, continuum damage mechanics material model (MAT 58) was utilized in LS-DYNA® explicit finite element program to simulate the mechanical properties of CFRE, GFRE and HCGFRE laminates. It was determined that the tensile strength of all composite laminates is increasing by increasing the strain rates in all temperatures. The continuous damage mechanics material model (MAT 58) was found to be suitable for simulating woven composite laminate under different strain rates and temperatures. In microstructural study, it was not observed significant changes in the microstructure of composite laminates by changing strain rates.
AtıfScopus1WoS1OpenAlex3İncele - MakaleAçık Erişim2020Scopus SJRQ2Optical, morphological and nano-mechanical properties of chromium oxide thin films fabricated by radio frequency (RF) magnetron sputtering
Özen, Soner; Şenay, Volkan
In this research, two transparent chromium oxide thin films having different thickness values were simultaneously deposited on glass substrates by adjusting target-substrate distance by means of radio frequency (RF) magnetron sputtering technique. The effect of film thickness on optical, morphological and nano-mechanical properties of the produced thin films were analyzed by using UV-VIS spectrophotometer, interferometer, tensiometer and atomic force microscope. The transmittance and absorbance of the films were measured in the incident photon wavelength range of 300–1000 nm. The optical energy band gap value of the produced thin films was estimated to be approximately 4 eV from the obtained absorbance data via Tauc's method. According to the results obtained from nano-mechanical tests, the produced thin films were highly scratch resistant. From the wetting experiments, it was found that the surfaces of the films were hydrophilic.
AtıfScopus11WoS10OpenAlex11İncele - MakaleYalnız künye2020Scopus SJRQ3Determination of some wood properties and response to weathering of citrus limon (L.) Burm Wood
Sahin, Sirri; Ayata, Ümit; Bal, Bekir Cihad; Esteves, Bruno; Can, Ahmet; Sivrikaya, Hüseyin
The ability of Citrus limon (L.) Burm wood to be used for flooring applications was considered in this work. Selected wood properties were determined, and the response to weathering was tested. Janka hardness, density, screw withdrawal resistance, color, glossiness, and artificial weathering (144, 288, and 432 h) were determined. The wood from Citrus limon was shown to be a dense wood with air density around 830 kg/m3 and with a high Janka hardness of 138.0 N/mm2, 120.4 N/mm2, and 115.9 N/mm2 for cross, tangential, and radial sections, respectively. This opens good perspectives to this kind of wood being used for flooring. Statistical analysis showed that both Janka hardness and screw withdrawal resistance were significantly different between surfaces. Nevertheless, the homogeneity groups showed that the main differences were between the surfaces in the longitudinal direction when compared with the transverse direction. The wood is lighter than most common woods and it is mainly yellow. After weathering, the wood became darker, redder, and yellower. Glossiness decreased in the first hours of the weathering period.
AtıfScopus8İncele - MakaleYalnız künye2020Scopus SJRQ4Effect of fineness on lime stabilization of low plasticity clays
Yilmaz, Fatih; Kocabey, Sefa
In this study, stabilization with lime was investigated within the scope of surface soil stabilization. The main aim of the study is to examine the grindability of the lime and investigate the effect of grinded lime on the strength and durability behavior of stabilized soil. This paper is divided into two parts. The first part deals with the grindability of the lime. The second part analyses the results of geotechnical tests with grinded and ungrinded lime. Ungrinded lime, 90% of which is below 48 microns, was reduced to less than 20 microns. The test samples were prepared by adding 2%, 4%, 6%, 8% and 10% of grinded and ungrinded lime to a low plasticity clay according to the Unified Soil Classification System. Curing times for strength tests were determined as 1, 7, 14 and 28 days. The properties of the prepared mixtures were investigated by their geotechnical properties such as index, strength and durability. In the light of the data obtained from the experiments, it is concluded that the fineness of the lime has a direct positive effect on the strength and durability characteristics.
- MakaleAçık Erişim2020Scopus SJRQ1Development of particle swarm and topology optimization-based modeling for mandibular distractor plates
Şensoy, Abdullah Tahir; Kaymaz, Irfan; Ertaş, Ümit
Mandibular Distraction Osteogenesis (MDO) is a common clinical procedure to correct mandibular retrognathia. However, since there is not a gold standard for determining the screw positions for current MDO operations, deviation of distraction direction and malocclusion increases. This case results in need of additional operations that affect the callus stability. In these cases, relapse risk increases and remodelling period gets longer. On the other hand, large volume of the distractor plates results in more invasive treatment and negatively affects the patients’ comfort. To overcome these problems, this study offers a new method including; virtual surgery simulation, determining the optimum screw configuration using particle swarm optimization loop linked between MATLAB-PYTHON-ANSYS programs and the design of distractor plate geometry with topology optimization. In order to test the proposed method, two different Finite Element (FE) models, CM and OM, were established based on conventional and optimum method, respectively. FEA results of the current study reveals that OM has 33.56% less displacement compared to CM, and the most critical screw in terms of screw loosening for OM has 35.29% less strain value than CM. These outcomes show OM shows superior callus stability in comparison with CM. On the other hand, redesign of the distractor plates using topology optimization according to the best screw positions provides 43.32% reduction in the total implant volume which means reduced cost and a less invasive MDO operation. Therefore, the clinical use of this protocol is expected to increase the success of the operation by shortening the recovery period.
AtıfScopus13WoS11OpenAlex13İncele - MakaleAçık Erişim2020Scopus SJRQ2Looking inside the strategic plans: Strengths and weaknesses of Turkish higher education institutions; [Mirando dentro de los planes estratégicos: Fortalezas y debilidades de las instituciones de educación superior Turcas]
Selvitopu, Abdullah; Kaya, Metin
As strengths and weaknesses are regarded as internal features of an organization, the present study focused on strengths and weaknesses of Turkish public universities by analyzing the SWOTs (Strengths, Weaknesses, Opportunities, Threats) of twenty higher education institutions. By applying qualitative content analytical tools, we tried to make some comparisons, twenty universities, ten ranked at the top and ten at the bottom of the URAP list, were chosen to analyze the strengths and weaknesses. Findings show that all universities top or bottom ones have internal strengths and weaknesses on their own. The strengths of universities differ according to their size, field of service, structure, history and geographical locations. Top universities which are in big size, have a deeply rooted history and situated in a better geographical location can enjoy the strengths as qualified faculty members, organizational culture, internationalization process, infrastructure and good alumni relations. On the other hand, bottom universities which have not got those advantages deal with other strengths such as young faculty members, organizational support and internal communication. As for the weaknesses, top universities need more budget and acceptable rate of faculty member and student. Bottom ones need more qualified faculty members, students and staff. As they are located in disadvantageous regions, they are in need of some promotions to attract faculties, staff, national and international students. In addition, they also should be aware of the contributions of good alumni relations.
AtıfScopus3WoS1OpenAlex1İncele - MakaleAçık Erişim2020Scopus SJRQ3B-maximal commutators, commutators of B-singular integral operators and B-Riesz potentials on B-Morrey spaces
Hasanov, Javanshir J.; Ayazoglu, Rabil; Bayrakci, Simten
In this article, we consider the Laplace-Bessel differential operator Δ B k, n = a' i = 1 k a, 2 a, x i 2 + γ i x i a, a, x i + a' i = k + 1 n a, 2 a, x i 2, γ 1 > 0,γ k > 0. {\Delta }{{B}{k,n}}=\mathop{\sum }\limits{i=1}{k}\left(\frac{{\partial }{2}}{\partial {x}{i}{2}}+\frac{{\gamma }{i}}{{x}{i}}\frac{\partial }{\partial {x}{i}}\right)+\mathop{\sum }\limits{i=k+1}{n}\frac{{\partial }{2}}{\partial {x}{i}{2}},{\gamma }{1}\gt 0,\ldots,{\gamma }{k}\gt 0. Furthermore, we define B-maximal commutators, commutators of B-singular integral operators and B-Riesz potentials associated with the Laplace-Bessel differential operator. Moreover, we also obtain the boundedness of the B-maximal commutator M b, γ {M}{b,\gamma } and the commutator [ b, A γ[ {[}b,{A}{\gamma }] of the B-singular integral operator and Hardy-Littlewood-Sobolev-type theorem for the commutator [ b, I α, γ[ {[}b,{I}{\alpha,\gamma }] of the B-Riesz potential on B-Morrey spaces L p, λ, γ {L}{p,\lambda,\gamma }, when b â BMO γ b\in {\text{BMO}}{\gamma }.
AtıfScopus5WoS5OpenAlex7İncele - MakaleAçık Erişim2020Characterization of pistachio processing industry wastewater and investigation of chemical pretreatment
Tırınk, Sevtap; Nuhoğlu, Alper; Kul, Sinan
This study was carried out in two stages; in the first stage of the study, wastewater characterization of wastewater originating from the pistachio industry was primarily completed, and in the second stage, chemical pre-treatment studies were completed. Pistachio wastewater used in the study was obtained from a pistachio processing factory located in Gaziantep province. In chemical treatment studies, montmorillonite clay, AlCl3, Al2(SO4)3, Fe2(SO4)3 and FeCl3 were used as coagulants. As a result of chemical treatability tests, AlCl3 was determined to be the best coagulant. With AlCl3 at optimum dosage and optimum pH value, 99.6% suspended solid (SS) removal efficiency, 65.8% chemical oxygen demand (COD) removal efficiency and 85.5% total phenol (TP) removal efficiency were obtained.
AtıfScopus7OpenAlex9TR Dizin2
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