Sürdürülebilir Kalkınma Amaçları

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Yazarlar

• Agirbas, Ozturk(2)
• Akpinar, Salih(2)
• Gavgali, Esma(2)
• Karakurt, Sercan(2)
• Aggon, Eser(1)
• Alp, Hamit Hakan(1)
• Birgul, Recep(1)
• Boz, Emre(1)
• Demir, Kübra(1)
• Gencel, Osman(1)
• Hazar, Emre Berk(1)
• Kul, Murat(1)
• Mollamahmutoglu, M.(1)
• Ozan, Murat(1)
• Ozgur Yaman, Ismail(1)
• Sahin, Resul(1)
• Tatlisu, Bulent(1)
• Tekin, Ilker(1)
• Ucan, Ezzet(1)
• Ucan, Izzet(1)
• Uçal, Muhammed Salih(1)
• Yetim, Ali Fatih(1)
• Yilmaz Aruntas, Huseyin(1)
• Yilmaz, Y.(1)

• MakaleAçık Erişim2026Scopus SJRQ4/r/bayburt/11514
  The Effect of Postural Mobility Exercises on the Athletic Performance Success, Proprioceptive Sense and Various Strength Parameters of Traditional Archers; [Postüral Mobilite Egzersizlerinin Geleneksel Okçuların Sportif Performans Başarı, Proprioseptif Duyu ve Çeşitli Kuvvet Parametrelerine Etkisinin İncelenmesi]

  Kul, Murat; Hazar, Emre Berk; Boz, Emre; Uçal, Muhammed Salih

  The aim of this study is to investigate the effects of eight weeks of TheraBand-based postural mobility exercises on athletic performance, strength, and proprioceptive senses in traditional Turkish archers (TTA). The study involved 24 male volunteer athletes enrolled at Bayburt University who had at least six months of regular archery training history. Participants were divided into experimental and control groups; the experimental group underwent postural mobility exercises three days a week for eight weeks, while the control group continued only their routine archery training. Data collection included assessments of grip and squeeze strength, back-leg strength, shoulder proprioception, shoulder mobility, and TTA shooting performance. The findings showed that the experimental group achieved significant improvement in all parameters, while the control group showed only limited increases in shoulder mobility and archery performance (p < .05). In conclusion, adding TheraBand exercises to traditional training is recommended as an effective method for increasing archers' muscle strength, joint stability, and performance.

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  İncele
• MakaleYalnız künye2021Scopus SJRQ1/r/bayburt/13496
  An investigation of the fatigue performance of adhesively bonded step-lap joints: An experimental and numerical analysis

  Gavgali, Esma; Sahin, Resul; Akpinar, Salih

  Adhesively bonded joints are used in many engineering applications and are manufactured by joining various materials together. Static and dynamic analysis of adhesively bonded joints is very important in both scientific and sector studies on these joints. In this study, the static and fatigue strengths of single-lap joints (SLJs) and three-step-lap joints (TSLJs) that were subjected to tensile and four-point bending tests were examined experimentally and numerically. Adhesively bonded joints were produced using DP460 toughened type adhesive and AA2024-T3 aluminum alloy was used as the adherent. Fatigue tests were performed at a loading ratio (R) of 0.1 and a frequency of 10 Hz. As a result, applying a step-lap to the overlap area of adhesively bonded joints considerably increased the tensile static and fatigue strength of the joint. For the single-lap joint, both the static tensile and the tensile fatigue lifetime limit value of the three-step-lap joint increased approximately 100%. One of the reasons for that increase was that the moment effect formed in single lap joints due to the eccentric loading is minimized and the other is that a step-lap applied to the overlap area retards the formation of damage. However, static bending and fatigue strength values of TSLJs significantly decreased compared to those of SLJs. In addition, the results of the experimental and numerical analyses were found to be highly compatible with each other.

  AtıfScopus29·WoS28·OpenAlex35

  İncele
• MakaleYalnız künye2021Scopus SJRQ1/r/bayburt/13416
  The effects of nanostructure additive on fracture strength in adhesively bonded joints subjected to fully reversed four-point bending fatigue load

  Demir, Kübra; Gavgali, Esma; Yetim, Ali Fatih; Akpinar, Salih

  Structural adhesive joints used in aerospace are usually subjected to fatigue loading rather than static loading. This study experimentally and numerically investigated the static four-point bending loads of adhesively bonded joints after fully reversed four-point bend fatigue loading where nanoadhesives – obtained by adding carbon nanostructures into aerospace grade structural adhesive – were used to bond the joints. Single lap joint specimens were produced using a nanocomposite adhesive obtained by adding 1 wt % graphene, 1 wt % carbon nanotubes-COOH and 1 wt % fullerene C60 nanostructures to a DP460 structural adhesive. AA2024-T3 aluminum alloy and carbon fiber-reinforced composites (CFRCs) with a plain weave fabric (0/90°) were used as adherend materials. First, static four-point bending tests were applied to these joints to obtain their strengths and then fully reversed sinusoidal fatigue tests were applied under a constant load amplitude, a frequency of 20 Hz and a load ratio of R = −1. Fatigue tests were performed over 1,000,000 cycles – accepted as an infinite life – at four different load levels by considering the strengths obtained from the static tensile tests. After obtaining the static four-point bending strengths of the joints to which fatigue loading was applied, the changes in the strengths of joints with and without fatigue testing were examined. The static strengths of aluminum joints bonded with nanoadhesive and subjected to fully reversed fatigue loading significant increased, depending on the nanostructure type added to the adhesive. Moreover, such increases in the strengths of joints are highly dependent on the adherend type (composite with [0/90]6 stacking sequence or AA2024-T3 aluminum).

  AtıfScopus34·WoS34·OpenAlex34

  İncele
• MakaleYalnız künye2020/r/bayburt/14058
  The Effects of Strenght Exercises on Body Composition and Irisin

  Ozan, Murat; Karakurt, Sercan; Aggon, Eser; Agirbas, Ozturk; Ucan, Ezzet; Alp, Hamit Hakan

  This is the first study to determine the effects of strenght exercises on irisin and correlation of bady composition and irisin. The purpose of this study was to determine the effects on body composition and irisin of static strength exercises with Tera-Bant (R) in elite boxers. 9 volunteered elite male boxers participate in the study who are nonsmokers and did not use any nutritional supplements. Boxers were instructed to perform strength exercises with Thera-Band for 3 days a week for 8 weeks. Blood samples were taken before exercises (resting), after the first exercise (acute) and after 8 weeks following the last exercise (chronic), and measurement of body fats were made at the same time. Irisin levels of blood were examined. Statistical analyses were carried out using the SPSS 22 for Windows. The data were found to not be distributed normally. Thus, Friedman, Wilcoxon, Mann-Whitney U and Speraman's correlations tests were used. The results were evaluated using an alpha level of .05. Body Fat Percentage (BFP) and Fat Mass (FM) levels of athletes increased, Lean Mass (LM) decreased relatively both after a single session and after 8 weeks. While irisin concentration increased after a single session, (correlation in pre exercise and after a single exercise. Static strength exercise is effective on body fat both acutely and chronically, and effective on irisin only acute. Farther, the body fat and irisin are related to the negative.

  AtıfWoS2

  İncele
• MakaleYalnız künye2019/r/bayburt/14276
  The Relationship Between Strength, Speed, Flexibility, Agility, and Anaerobic Power in Elite Athletes

  Tatlisu, Bulent; Karakurt, Sercan; Agirbas, Ozturk; Ucan, Izzet

  The aim of this study was to determine whether there is a relationship between strength, speed, flexibility, agility, and anaerobic power in elite athletes. In various sport branches 29 active male athletes participated in this study with an average age of 21.14 +/- 1.98 years who without any health problems. Back and leg strength were measured by dynamometer (Takei), speed was measured by 20 meters test, agility was measured by T test, flexibility was measured by sit and reach test, vertical jump sit-reach test by Jumpmeter (Takei) anaerobic power was calculated by the Lewis formula. The data were analyzed in SPSS 22.0 for Windows package program. Bivariate - Pearson Correlation test was used to determine the relationship between strength, speed, flexibility, agility, and anaerobic power. The results were interpreted as .05 significance level. We were found positive and significant relationships between the back and leg force, between anaerobic power and vertical jumping, between anaerobic power and back force, between anaerobic power and leg strength, and between flexibility and vertical jumping. And also, there was a negative and significant relationship between flexibility and agility, between speed and vertical jump, and between agility and vertical jump. In this study, it was concluded that strength, vertical jump and anaerobic power was related both each other and the other. For this reason, we recommend that the trainings cover all motoric characteristics.

  AtıfWoS3

  İncele
• MakaleYayıncıda açık erişim2015Scopus SJRQ1/r/bayburt/13887
  Monitoring macro voids in mortars by computerized tomography method

  Tekin, Ilker; Birgul, Recep; Ozgur Yaman, Ismail; Gencel, Osman; Yilmaz Aruntas, Huseyin

  This study aims to investigate the use of ground pumice powder (PP) in cement production and to monitor void developments in mortars by X-ray Computerized Tomography (CT) which is a nondestructive test method. PP-blended cements were produced by replacing ordinary Portland cement with PP at 0% (control), 5%, 10% and 15% by weight. Paste and mortar specimens were manufactured by these blended cements. Some of the physical and mechanical tests are carried out on these mortar specimens. Experimental results showed that macro void developments in 100-day period for mortars with different PP replacement ratios exhibited different reduction in void ratios.

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  AtıfScopus19·WoS17·OpenAlex19

  İncele
• MakaleAçık Erişim2010Scopus SJRQ2/r/bayburt/12613
  Pre- and post-cyclic loading strength of silica-grouted sand

  Mollamahmutoglu, M.; Yilmaz, Y.

  The aim of this study is to investigate whether there is a loss in the strength of fine- to medium-grained colloidalsilica-grouted sand after cyclic loading. First, the rheological properties of colloidal silica grouts, such as gel time and viscosity, are studied. Then, appropriate colloidal silica grouts (saline solution/colloidal silica suspension ratios of 10%, 15%, 20% and 25% by weight) are selected. The selected colloidal silica grouts are then injected into fine- to medium-grained sand specimens prepared at an overall relative density of 50%. The strength of the grouted sand specimens is determined by unconfined compression tests. The effect of curing period on the strength of the grouted samples is also investigated. After performing cyclic loading tests on grouted sand specimens at different cyclic stress ratios (0, 0.13, 0.26 0.39 and 0.52), it is observed that none of the samples failed or was damaged, and that the colloidal silica grout provides fine- to medium-grained sand with a significant resistance to cyclic deformation. The samples are then subjected to unconfined compression tests, and the results show that the loss in the strength of colloidal-silica-grouted sand is insignificant.

  AtıfScopus38·WoS32·OpenAlex34

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