Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Uzun, Sevda(62)
- Merdan, Mehmet(58)
- Duran, Celal(50)
- Ozdes, Duygu(47)
- Kaygusuz, Abdullah(43)
- Ashyralyyev, Charyyar(38)
- Karsli, Orhan(33)
- Öztürk, Serkan(32)
- Araz, Onur(31)
- Demir, Selim(29)
- Kulakaç, Nurşen(29)
- Dokuz, Abdurrahman(28)
- Arslan, Mehmet(27)
- Baltacı, Cemalettin(27)
- Maden, Nafiz(27)
- Sipahi, Ferkan(27)
- Topal, Fevzi(27)
- Turan, Ibrahim(27)
- Kandemir, Raif(25)
- Kurt, Kemal(24)
- Ozturk, Samet(24)
- Peker, Iskender(24)
- Vural, Alaaddin(24)
- Reis, Hatice Catal(23)
- Yücel, Cem(23)
- Aydin, Faruk(22)
- Baltaci, Cemalettin(22)
- Gücer, Mehmet Ali(22)
- Günen, Mehmet Akif(22)
- Kankal, Murat(22)
- Topal, Meryem(22)
- Karimullah, Suud Sarim(21)
- Uysal, Ibrahim(20)
- Kurnaz, Muammer(19)
- Tuncer, Metin(19)
- Yolcu, Halil(19)
- Çelik, Necati(19)
- Ürkek, Bayram(19)
- Şan, Murat(19)
- Aliyazicioglu, Yuksel(18)
Yayınlar
- DüzeltmeAçık Erişim2024Scopus SJRQ4Correction to: Wear Resistance of Aluminum Alloy A356 After Thorough Anodic Oxidation (Metal Science and Heat Treatment, (2023), 65, 5-6, (379-385), 10.1007/s11041-023-00941-y)
Başyiğit, A.B.; Azakli, Z.; Gümrük, R.; Bican, O.
On the title page, author Dr. Aziz Bariş Başyipit should be spelled as Aziz Bariş BAŞYIĞIT. The original article has been corrected.
- MakaleYalnız künye2024Scopus SJRQ2Disease Burden and Sexual Life Experiences of Individuals with Chronic Obstructive Pulmonary Disease: A Phenomenological Study
Uzun, Sevda; Toker, Sema; Erer, İmren
This study aimed to examine the disease burden encountered by individuals with COPD, with a comprehensive investigation of the effect of the disease on sexual life. In this study, a phenomenological research design, a qualitative research type, was employed. The study involved 36 individuals diagnosed with COPD. The data collection process involved conducting individual, face-to-face interviews. Colaizzi’s phenomenological analysis method was utilized for the data analysis. The analysis of the data yielded two categories (burdens of the disease and sexual life) and six primary themes (physical effects, mental effects, social effects, difficulties during sexual activity, the spouse’s perspective on the problems, and dealing with sexual problems). The outcomes of this study highlighted the significant burden of COPD on patients and its adverse impact on their sexual lives. Given the complex nature of COPD, a thorough and professional assessment of patients’ sexual well-being, coupled with timely identification of sexual dysfunctions and appropriate interventions, is of utmost importance.
AtıfScopus1WoS3OpenAlex1
İncele - MakaleAçık Erişim2024Scopus SJRQ3The aroma profile of butter produceusing different starter cultures; [Aromatski profil maslaca proizvedenih korištenjem različitih starter kultura]
Şengül, Mustafa; Akgül, Halil İbrahim; Ürkek, Bayram
The aroma of fermented dairy products is greatly influenced by starter cultures and by the lactic acid bacteria strains that are used as starter cultures. Experimental butter samples were produced using no starter culture, by a commercial starter culture (Lactococcus lactis subsp. lactis, Lactococcus lactis subsp. cremoris, Lactococcus lactis subsp. lactis biovar. diacetylactis, Leuconostoc mesenteroides), by a prepared bacteria mix (Lactococcus lactis subsp. lactis EM1, Lactococcus lactis subsp. cremoris EM28, Lactococcus lactis subsp. lactis biovar. diacetylactis G49, Leuconostoc mesenteroides B3), and by a prepared bacteria mix fortified with Lactobacillus rhamnosus B19 (L. rhamnosus B19). The aroma profile of the butter samples was investigated using a gas chromatography mass spectometry method (GC-MS). A total of 92 components were determined in the butter samples, including acids (12), alcohols (20), aldehydes (9), alkanes (6), esters (8), ketones (19) and several other aroma compounds (18). The sample containing the prepared starter culture had the most detectable aroma components, while the lowest number of aromatic components were found in the sample without a starter culture. 2,3-butanedione (diacetyl) was not detected in the sample without a starter culture. 2-Butanone 3-hydroxy-(acetoin) content was the highest in the sample containing the commercial starter culture and the lowest in the sample without a starter culture.
AtıfScopus6WoS3OpenAlex6İncele - MakaleAçık Erişim2024Scopus SJRQ2Optimization of expropriation costs on the highway projects in Türkiye
Çelik, Kemal
Expropriation is widely used to introduce highway projects into the society. Expropriation is the registration process of real estate and equities owned by natural and legal persons on behalf of the administration for public interest, provided that property and easement right amount shall be paid in cash or in advance or by equal installments. In what situations and by which institutions expropriation is carried out are restricted by the law. In accordance with the Article 3 of the Expropriation Law Number 2942 amended by the Law Number 4650, the expropriation process shall not be started without an adequate allowance provided by the administration. The exercise of the right of property shall not be against public interest.” Project areas are required to be converted into public property after the development plans for the public projects are prepared. Areas regarded as private property but intersected by highway, railway or waterway routes can only be occupied after expropriation. Without expropriation, projects based on transportation in improvement areas can be opened to public with the application of the provisions of the Development Law Number 3194, while those in areas having no development plan can be opened to public with the application of the relevant provisions of the Agricultural Reform Law Number 3083 on Land Consolidation in Irrigated Areas and Law Number 5403 on Soil Conservation and Land Use. In this article, opening highways, railways, and waterways to public in Türkiye using the implementation of development plans is discussed. For the real estate coinciding with the route of public investments, if land and land lots are arranged in accordance with the Article 18 of the Development Law Number 3194, state withholding up to 45% may be imposed. The objective function in the state withholding can be stated as f= costmin= f(a,b). Land acquisition increases as the ratio of state withholding increases, resulting in the minimization of the expropriation costs. Public projects such as highway can be opened to public free of charge with development plan implementation in improvement areas and with land consolidation in rural areas having no development plan.
AtıfOpenAlex1
İncele - MakaleAçık Erişim2024Scopus SJRQ3Publishing in Hospitality and Tourism Journals: Revisiting the Criteria Used by Leading Reviewers in Turkey
Polat, Eray
This study aims to identify the criteria reviewers use to determine whether to accept or reject empirical manuscripts and to define which criteria are more significant. In this exploratory study, which utilizes qualitative research methods, 16 members of the Scientific Committee of the National Tourism Congress of Turkey were asked to identify the primary areas they focus on when reviewing a manuscript. The data was analyzed using content analysis to determine the most significant criteria. The study identifies six criteria for acceptance and seven for rejection. The most important criterion for acceptance is the appropriateness and adequacy of the research method, while the most crucial criterion for rejection is methodological weakness. Other criteria influencing the reviewers' acceptance or rejection decisions focus on similar issues. The critical factor that distinguishes them is how the manuscript meets the requirements established by the reviewers. The study provided recommendations for future researchers.
- MakaleAçık Erişim2024Scopus SJRQ1Deep eutectic solvent as plasticizing agent for the zein based films
Yilmaz, Mustafa Tahsin; Kul, Ebubekir; Saricaoglu, Furkan Turker; Odabas, Halil Ibrahim; Taylan, Osman; Dertli, Enes
This study explores, the impacts of incorporating of deep eutectic solvent (DES) as plasticizer on the characteristics of zein films. Investigation focused on examining the mechanical, thermal, surface, and microstructural properties of zein films that were plasticized using DES. The findings of the study revealed that by adding DES to zein films, there was an observed improvement in transparency. Additionally, it was observed that up to a 20% addition of DES led to a reduction in water vapor permeability (WVP). However, beyond this level, the WVP increased as the surface hydrophobicity decreased. The films that were plasticized with DES showed higher tensile and burst strength values than control. However, there was a decrease in the elongation at break and burst distance, except for the film containing 30% DES. The addition of DES as plasticizer resulted in smoother surface morphology compared to the control, and all films revealed homogeneous and non-porous surface and cross-section microstructure. The films plasticized with DES displayed three different thermal degradation temperatures resulting in higher thermal stability. The FT-IR spectrum of films showed similar backbone structure including Amide I, II and III bands. However, 5% DES plasticized film showed different secondary structural peaks of Amide I band due to lower α-helix and higher β-sheet and random coil content. The findings of this investigation indicate that the employment of DES as plasticizer in biodegradable polymer films can yield enhanced mechanical and barrier characteristics compared to conventional plasticizers, thus demonstrating its potential for effective use.
AtıfScopus56WoS50OpenAlex55İncele - Kitap BölümüAçık Erişim2024Integrating sustainability into HR practices using the best worst method
Şimşek, Tugçe; Şimşek, Ahmet Bahadir
This chapter delves into the intricate task of integrating sustainability principles into human resources practices using analytical methods as a guiding framework. It unveils the potential for harmonizing various sustainability aspects within HR, moving beyond theory to provide a practical roadmap. Analytical techniques enable decision makers to navigate between conflicting interests and chart a path towards common understanding and workable strategies. By a hypothetical case study, this chapter illustrates how analytical tools illuminate the way forward, promoting alignment with ethical, environmental, and social responsibility goals. This journey underscores the pivotal role of analytical methods in resolving conflicts among decision-makers, facilitating consensus-building to make ethical HR decisions. This chapter signifies the transformative potential of integrating sustainability into HR, propelling organizations toward a future where HR practices are not only functional but also ethically grounded, ensuring the welfare of employees, the community, and the planet.
AtıfScopus1İncele - MakaleAçık Erişim2024Scopus SJRQ3The relationship between body image and sexual satisfaction in women who have undergone hysterectomy
Gökçe, Elmas; Karakaş, Sevda
SUMMARY OBJECTIVE: This study aims to examine the relationship between body image and the level of sexual satisfaction in women who have undergone a hysterectomy. METHODS: This descriptive study utilized a relational screening model. Conducted between June 2023 and March 2024, the study included a total of 300 sexually active women who had undergone a hysterectomy 6 months prior. Data were collected using a personal information form, the Golombok-Rust Sexual Satisfaction Scale, and the Body Image Scale through face-to-face interviews lasting approximately 20–30 min. RESULTS: The average age of the participating women was 44.4±10.55 years. Of the participants, 96.7% were married and 42.4% had entered menopause. The average score on the Body Image Scale was 81.2±3.8, and the average score on the Golombok-Rust Sexual Satisfaction Scale was 33.0±15.1. A positive significant relationship was found between body image and sexual satisfaction (p<0.05). There was also a statistically significant positive relationship between the total scores on the Body Image Scale and the Golombok-Rust Sexual Satisfaction Scale with age and frequency of sexual intercourse (p=0.049, p<0.001, p<0.001, p=0.047, and p=0.014). It was determined that as the age and frequency of sexual intercourse increased, the levels of body image and sexual satisfaction also increased. CONCLUSION: Our study found that women’s self-image is negatively affected, and their level of sexual satisfaction decreases following a hysterectomy.
AtıfScopus2WoS2OpenAlex2
İncele - MakaleAçık Erişim2024Scopus SJRQ2Effects of Swedish Massage at Different Times of the Day on Dynamic and Static Balance in Taekwondo Athletes
Bayrakdaroğlu, Serdar; Eken, Özgür; Bayer, Ramazan; Yagin, Fatma Hilal; Kızılet, Tuba; Kayhan, Recep Fatih; Ardigò, Luca Paolo
The purpose of this study is to investigate the impact of different durations of Swedish massage on the static and dynamic balance at different times of the day in taekwondo athletes. Twelve taekwondo athletes who had been practicing on a regular basis for more than 5 years participated in this study. Taekwondo athletes completed static and dynamic balance tests either after a no-massage protocol (NMP), a five-minute massage protocol (5MMP), a ten-minute massage protocol (10MMP), or a fifteen-minute massage protocol (15MMP) two times a day in the morning (08:00–12:00) and in the evening (16:00–20:00), on non-consecutive days. The findings of this study suggest that the duration of the massage has a discernible impact on dynamic balance, particularly with regard to the right foot. Taekwondo athletes who received a 10MMP or 15MMP displayed significantly improved dynamic balance compared to those in the NMP. Importantly, these improvements were independent of the time of day when the massages were administered. It underscores the potential benefits of incorporating short-duration Swedish massages into taekwondo athletes’ pre-competition routines to enhance dynamic balance. These findings highlight the potential benefits of incorporating short-duration Swedish massages into taekwondo athletes’ pre-competition routines to enhance dynamic balance, a critical component of their performance, regardless of the time of day.
AtıfScopus6WoS4OpenAlex7İncele - MakaleAçık Erişim2024Scopus SJRQ3Effect of Soil-Structure Interaction on Story Acceleration Response of a High-Rise Building
Araz, O.; Ozturk, K.F.; Cakir, T.
In this paper, the effect of soil–structure interaction (SSI) on the story acceleration response of a high-rise building due to different earthquakes is investigated. To determine the dynamic response of a 40-story building considering SSI, six different foundation soil conditions and ten different earthquake records are considered. The results show that the SSI effect on the story acceleration response of the high-rise building resting on relatively soft soil types is of critical importance.
AtıfScopus13WoS10OpenAlex12İncele - MakaleYalnız künye2024Scopus SJRQ2Innovative Polygonal Trend Analysis (IPTA) in detecting the seasonal trend behavior of statistically downscaled precipitation for the Eastern Black Sea Basin of Turkey
Nacar, Sinan; Şan, Murat; Kankal, Murat; Okkan, Umut
This study compares projected and past seasonal precipitation trends in the Eastern Black Sea Basin, Turkey. Historical data from twelve stations representing the basin during 1981–2010 was used, while statistically downscaled data from two representative concentration pathway scenarios (RCP4.5 and RCP8.5) outputs of the GFDL-ESM2M general circulation model were utilized for 2021–2050. To determine the seasonal trend behaviors of precipitation variables and transitions between consecutive months, the Innovative Polygon Trend Analysis (IPTA) was implemented. Furthermore, the star concept was employed to illustrate the changing sizes between consecutive periods. Both scenarios showed considerable summer and autumn declines at almost all locations, with low seasonal precipitation variability. These scenarios indicated January to be the important month for trend shift, except for Rize, Pazar, and Hopa stations. The formation of several polygons, polygons intersecting, and polygons not forming on the global regression line show that the hydro-climatic cycle might be chaotic.
AtıfScopus12WoS12OpenAlex16İncele - MakaleAçık Erişim2024Scopus SJRQ3The potential toxic element contents of Berriasian–Aptian carbonate rocks: distribution of elements in dolomite and limestone and possible sources (Gümüşhane/NE Türkiye)
Eker, Çiğdem Saydam; Arı, Uğur Volkan
The aim of this study is to determine the potential toxic element (PTE) content linked to the geochemical features of Berriasian–Aptian carbonate rocks commonly outcropping in Gümüşhane, along with the degree of pollution and possible sources of these toxic elements, and to compare dolomite with limestone in terms of toxic metal abundance. In the field, dolomite and limestone samples were collected by measuring stratigraphic sections around Yuvacık, Ünlüpınar, Çukutbaşı, Bağlarbaşı, Mescitli and Gülaçar (Gümüşhane). The samples were analyzed using inductively coupled plasma mass spectroscopy (ICP-MS). The mean values for Mo, Cu, Pb, Zn, Ni, As, and Co were 3.1, 23.8, 7.1, 14.5, 13.5, 30.9, and 8 mg/kg in Yuvacık; 6, 2.3, 1.1, 3.5, 8.1, 12.3 and 2.5 mg/kg in Ünlüpınar; 17.9, 1.8, 1.5, 8.6, 7.9, 13.9 and 1.7 mg/kg in Çukutbaşı; 3.7, 6.5, 31.7, 82.7, 9.5, 32.0 and 1.9 mg/kg in Bağlarbaşı; 0.7, 0.7, 7.1, 21.3, 2.6, 11.8 and 0.7 mg/kg in Mescitli; and 1.2, 1.1, 2.4, 5.2, 1.3, 4.0 and 0.2 mg/kg in Gülaçar, respectively. According to geochemical pollution parameters [geo-accumulation (Igeo), pollution index (Pi), and pollution load index (Pln)], the rocks were generally significantly polluted by Mo and As, without notable pollution by the other elements. Limestone samples from the Yuvacık, Ünlüpınar, and Çukutbaşı areas were more polluted in terms of Mo and As compared to dolomites. This pollution in Yuvacık and Ünlüpınar was identified to have geogenic sources (Pb–Zn–Cu mineralization) and in Çukutbaşı was identified to have lithogenic sources. Dolomites from the Bağlarbaşı area were more polluted in terms of As and less polluted in terms of Mo compared to limestones. In the Mescitli location, both dolomites and limestones were occasionally polluted in terms of As, while limestones were polluted in terms of Mo. In these two areas, the sources of As and Mo are geogenic (Pb–Zn mineralization), In Gülaçar, dolomites were more polluted in terms of Mo and less polluted in terms of As compared to limestones. In this locality, As and Mo are thought to have a geogenic source (Pb–Zn–Cu mineralization).
AtıfScopus6WoS6OpenAlex4İncele - MakaleAçık Erişim2024ON LOCAL GOVERNMENTS OMBUDSMAN IN TURKEY: A COMPARATIVE ANALYSIS WITH THE LOCAL GOVERNMENTS OMBUDSMAN IN UK AND ITALY; [SOBRE O OMBUDSMAN DOS GOVERNOS LOCAIS NA TURQUIA: UMA ANÁLISE COMPARATIVA COM O OMBUDSMAN DOS GOVERNOS LOCAIS NO REINO UNIDO E NA ITÁLIA]; [SOBRE EL OMBUDSMAN DE LOS GOBIERNOS LOCALES EN TURQUÍA: UN ANÁLISIS COMPARATIVO CON EL OMBUDSMAN DE LOS GOBIERNOS LOCALES EN EL REINO UNIDO E ITALIA]
Doğan, Kadir Caner; Parlak, Bekir
Objective: The Ombudsman is essentially an independent, national-level institution that operates in response to complaints from citizens in order to steer public administrations away from bad administrative practices and behavior. However, it is impossible for an ombudsman with such a broad mandate at the national level to deal with all administrative complaints within the state. Therefore, in order to get more efficiency from the national Ombudsman, it has been divided into different sub-types. Theoretical Framework: One of these is the Ombudsman for local governmentrs, which deals only with complaints from local administrations. Although there is a national ombudsman in Turkey, there is no ombudsman specialized in local governments. Method: This study aims to make some suggestions for the Ombudsman for local governments envisaged to be established in Turkey in the future by analyzing the local governments ombudsman offices in the UK and Italy in terms of their structural-institutional and functional aspects. In this context, the study, with a comparative approach, provides suggestions for the basic aspects, qualities and characteristics of the Turkish local government ombudsman and, thus, for its structural-institutional and functional aspects. The method of the research is literature review. Results and Discussion: According to the results of this research; Establishing an ombudsman for local governments in Turkey by law, cooperating with other ombudsmen in the vicinity, examining and correcting the mismanagement and bad behavior of local governments upon public demand, ensuring easy and cheap access, fulfilling their duties, and quickly and systematically addressing the faults of local governments. Warning, making suggestions, preparing reports and then reporting the situation to local decision-making boards and the public will be effective in providing public services more effectively and efficiently and strengthening local democracy. Originality/value: In the study, original suggestions are made for local government ombudsman in Turkey, based on the examples of UK and Italy.
AtıfScopus1İncele - MakaleAçık Erişim2024Scopus SJRQ2A new study on the Newell-Whitehead-Segel equation with Caputo-Fabrizio fractional derivative
Alkan, Aslı; Anaç, Halil
In this research, we propose a new numerical method that combines with the Caputo-Fabrizio Elzaki transform and the q-homotopy analysis transform method. This work aims to analyze the Caputo-Fabrizio fractional Newell-Whitehead-Segel (NWS) equation utilizing the Caputo-Fabrizio q-Elzaki homotopy analysis transform method. The Newell-Whitehead-Segel equation is a partial differential equation employed for modeling the dynamics of reaction-diffusion systems, specifically in the realm of pattern generation in biological and chemical systems. A convergence analysis of the proposed method was performed. Two-dimensional and three-dimensional graphs of the solutions have been drawn with the Maple software. It is seen that the resulting proposed method is more powerful and effective than the Aboodh transform homotopy perturbation method and conformable Laplace decomposition method in the results.
AtıfScopus5WoS3OpenAlex10İncele - Derleme MakaleAçık Erişim2024Scopus SJRQ3The Effect of Acupressure on Fatigue in Cancer Patients: A Meta-analysis Study
Doğan, Melike Demir
Objectives: This meta-analysis study was conducted to determine how acupressure affects fatigue in cancer patients. Materials and Methods: Randomised controlled clinical trials were conducted using the keywords ‘acupressure and fatigue’ on Google Scholar, PubMed, and ISI Web of Sciences databases. Cochran’s Q test statistics and I2 test statistics were used to test the presence of heterogeneity. The random-effect meta-analysis model was used according to the results of the test for heterogeneity. Hedge’s g test statistics were used to determine the joint effect between acupressure and control groups in the meta-analysis study. Results: In this meta-analysis study, 409 patients from the acupressure group and 403 patients from the control group were included. When calculating the average standardised difference value of the acupressure versus the control group, it was determined that acupressure decreased the fatigue score in a statistically significant way. Conclusion: Acupressure is an effective approach to alleviate cancer-related fatigue.
AtıfScopus5WoS5OpenAlex5İncele - MakaleAçık Erişim2024Scopus SJRQ2Potential geographic distribution and habitat utilization of Lacerta viridis (Squamata: Lacertidae) in northern Türkiye
Şahin, Mehmet Kürşat; Kurnaz, Muammer
The genus Lacerta, particularly the green lizard (Lacerta viridis), is a significant lizard group in the Western Palearctic. This study aims to predict its geographic range in Northern Türkiye and identify key habitat types based on the CORINE Land Cover classification. Occurrence records, gathered from published sources and on-site investigations, were analyzed using a 30 arc-second resolution layer and bioclimatic parameters from WorldClim v.2.1. The distribution was modeled in kuenm, and habitat use was assessed with generalized linear models. Results show that the green lizard’s occurrence is strongly influenced by precipitation dynamics and it prefers areas with little to no shade. These findings highlight the importance of precipitation in determining the species’ distribution and suggest further research on local dynamics for effective conservation.
AtıfScopus2WoS1OpenAlex2İncele - MakaleYalnız künye2024Scopus SJRQ4Vinegar production from different cherry laurel fruits and investigation of some of their physicochemical properties; [Essigherstellung aus verschiedenen Kirschlorbeerfrüchten und Untersuchung einiger ihrer physikochemischen Eigenschaften]
Baltaci, Cemalettin; Yilmaz, Kubra; Ozturk, Seyda; Karpuz, Omer
In this study, seven types of traditional cherry laurel fruit vinegars (CLFV) belonging to three different species were produced. Vinegars, including those produced during the study and supplied from the market, were analyzed for total acidity, volatile acidity and non-volatile acidity, pH, ash, oxidation number, iodine number, ester, mineral substan-ce, alcohol, total solids, and total sugar-free solids. Analyses and the ranges of the results that were found in vinegar samples were as: Acidity percentage (as acetic acid) 1.68–4.13 %, volatile acidity (as acetic acid) 5.70–18.27 g/L, non-volatile acidity (as tartaric acid) 3.31–36.10 g/L, alcohol percentage 0.01–0.48, pH 2.24–3.57, total sugar 6.54–283.56 g/L, total solids 22.01–486.56 g/L, total sugar-free solids 14.11–217.73 g/L, ash 0.22–3.84 g/L, ester 16.80–61.14, oxidation number 389.60–394.05 and iodine number 35.20–386.88. For the color analysis, the values were found to be between 10.91 and 25.79 for L*, 5.15 and 15.08 for a*, between –4.83 and 8.72 for b*, between 3.54 and 16.83 for E*. Based on their physicochemical properties, the vinegars numbered N4, N5, N6, N8, and N9 are considered suitable for vinegar production compared to the samples numbered N7 and N10. The raw material contents of N7 and N10 vinegars differ from the others and inhibit the development of acidity. Additionally, it has been determined that the physicochemical properties of N4, N5, N6, N8, and N9 vinegar samples are superior to those of apple and grape vinegars. According to the study re-sult, cherry laurel fruits (CLF) are suitable for natural vinegar production under optimum conditions, and further field studies should be carried out to apply these findings at the industrial level.
AtıfScopus5WoS5İncele - Derleme MakaleAçık Erişim2024Scopus SJRQ3Effect of Different Stabilizers and Rebaudioside A (Reb A) Sweetener on Quality Characteristics of Low-Calorie Orange Marmalade
Öztürk, Şeyda; Baltacı, Cemalettin
Low-calorie orange marmalade was produced using sugar and reb A (0.08%) or reb A-sugar free recipes with pectin (1%) and agar agar (AA) (1%) stabilizers. The physical, chemical, and sensory properties of the marmalades were evaluated. AA stabilizers increased the viscosity of the marmalades compared to pectin, but they did not affect samples with reb A. Low-calorie samples had higher L* and b* values and lower a* values than sugar-containing samples. Total sugar content in reb A samples was 8.30 to 9.28 g/100 g, and it was lower in agar samples produced in parallel with pectin. The hydroxymethyl furfural (HMF) value was lower in sugar-free recipes (3.03 to 3.62) than in sugar-containing samples. Pectin-reb A samples had favorable taste, while AA-reb A samples favored consistency among reb A-containing samples.
AtıfScopus2WoS1OpenAlex3İncele - MakaleAçık Erişim2024Scopus SJRQ1Effect of White-Portland cement containing micro and nano silica on the mechanical and freeze-thaw properties of self compacting mortars
Etli, Serkan; Yılmaz, Tekin; Hansu, Osman
This study concentrated to investigate the influences of white-Portland cement (W-PC) containing silica fume (SF: micro-silica (µSi) and nano-silica (nSi)) as replacement (2–4 wt%) on mechanical (strength and durability), physical and microstructural behaviors of self-compacting mortars (SCMs) fabricated at 0.48–0.63 w/b ratios. In keeping with these purposes, besides of carrying out the workability (mini-slump flow: M−SF and V-funnel: V-F) experiments of SCMs, the mechanical and microstructural tests implemented were: unconfined compressive strength (UCS), flexural strength (FS), freeze–thaw (F-T) and scanning electron microscope (SEM) analysis. The outcomes displayed that, in comparison with the control, replacing W-PC by SF (particularly nSi) enhanced the UCS and FS, resisted against F-T durability by lowering the strength losses in UCS and FS. The ameliorated microstructure resulting in a reduction in the number and/or a narrowing in the size of micro-cracks and pores contributed to generate a more compact and consolidated SCM structure for the improving of strength and durability due of pore-filling effect and superior pozzolanic characteristics of µSi and especially nSi, this in turn reduced the permeability of SCM, which has a significant effect on the strength and durability behaviors of the SCM.
AtıfScopus16WoS16OpenAlex19İncele - MakaleYalnız künye2024Scopus SJRQ1Caprock integrity at Çanakkale-Tuzla hydrothermal system inferred from magnetotelluric modeling using particle swarm optimization
Büyük, Ersin; Karaman, Abdullah
The impermeable caprock within a geothermal system serves the purpose of effectively sealing the reservoir, resulting in an elevation of both pressure and temperature. This sealing mechanism plays a crucial role in the long-term preservation of the system while also contributing to its overall sustainability. Caprock failure subsequent to seismic activity near a geothermal site can lead to the permeation of the caprock structure, resulting in diminished sealing capabilities and a decline in the reservoir temperature. In addition, this process alters the geochemical composition of the water by creating a hydrothermal mixture zone that disrupts the resistivity structure of the caprock, which is typically characterized by low resistivity values due to its substantial clay content and mineral alteration. This study focuses on investigating the integrity of the caprock at the Çanakkale-Tuzla geothermal field in Turkey, where water temperature and conductivity were reported to have decreased after a moderate-magnitude earthquake and subsequent aftershocks. For this purpose, we have performed magnetotelluric (MT) measurements, a method known for its sensitivity to geochemical reactions. These measurements are conducted along two parallel profiles that encompassed a total of 32 stations. The particle swarm optimization (PSO) technique is used to overcome the subtle difficulties associated with conventional inversion methods in modeling the MT data of complex formations. This is the first study that overcomes the difficulties emanating from the caprock failure by modeling MT data using PSO. Our modeling approach produces resistivity images that we interpreted as the signature of the failed caprock following the earthquake at the study site. Our results appear to confirm the documented geochemical changes, or hydrothermal mixture zone around the caprock structure.
AtıfScopus5WoS6OpenAlex2İncele