Teknik Bilimler Meslek Yüksekokulu Koleksiyonu

Permanent URI for this collectionhttps://hdl.handle.net/20.500.13091/1629

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Analysis of the Studies Done on Laboratories in Turkey
(2020) Yener Dündar; Köklü, Niğmet; Yamaç Ramazan Ziya; Yalçın Seher
The aim of this study is to determine the trend of studies in the laboratory and put the current situation in Turkey. For this purpose, document analysis technique, one of the qualitative research methods, was used in the research. The data group of the research consists of thesis studies on laboratories in our country between 1999-2017. Theses in the fields of science, physics, chemistry, and biology have been determined and themes and sub-themes have been created through the keywords of these theses. Then, frequency tables were created according to the themes and sub-themes created. According to the findings obtained, it was seen that the traditional laboratory approach and inquiry-based laboratory approaches are compared in the studies. It was determined that the studies were done on physics subjects and it was determined that complementary measurement and evaluation studies performed for performance evaluation were used in very fewnumbers. In addition, it was concluded that the keywords did not give enough information about the studies. In this context, it can be suggested to examine the effectiveness of these approaches according to each other and experiment types by examining theapproaches in which students can be more active in laboratories.
Citation - Scopus: 3
Anti-Colorectal Cancer Effects of Medicinal Plants: Euphorbia Helioscopia, Ferula Elaeochytris, and Sideritis Albiflora
(2021) Deveci, Ebru; Çayan, Gülsen Tel; Karakurt, Serdar; Duru, Mehmet Emin
Phytochemicals, extracts, and mixtures obtained from plants have been offered as an option for cancer treatment and prevention for modern drug discovery in recent years. For this purpose, in this study, anti-colorectal cancer effects of the hexane, acetone, methanol, and water extracts obtained by sequential extraction from Euphorbia helioscopia L., Ferula elaeochytris Korovin, and Sideritis albiflora Hub.-Mor. on DLD-1 cell line were investigated in vitro by using Alamar blue assay. Dosedependent inhibition was detected in the viability of DLD-1 cell line. In all three plants species, E. helioscopia (IC50: 140.83±0.31 µg/mL), F. elaeochytris (IC50: 67.93±0.12 µg/mL), and S. albiflora (IC50: 85.12±0.10 µg/mL) methanol extracts showed higher anti-colorectal effects on DLD-1 cell line compared to other extracts tested for the same species. In addition, the IC50 value of doxorubicin used as a standard was found as 6.10±0.55 µg/mL. With the results obtained, as the first report highlighting in vitro anti-colorectal cancer effects of the studied plant species on DLD-1 cell line, promising marks were obtained from the analysis of the extracts as anti-cancer sources for plant-derived drug applications.
Citation - Scopus: 11
Antioxidant, Cytotoxic, and Enzyme Inhibitory Activities of Agropyron Repens and Crataegus Monogyna Species
(2020) Deveci, Ebru; Çayan, Gülşen Tel; Karakurt, Serdar; Duru, Mehmet Emin
Objective: The aim of this study was to investigate antioxidant, enzyme inhibitory and cytotoxic activities of Agropyron repens and Crataegus monogyna methanol extracts with total phenolic and flavonoid contents. Materials and Methods: Total phenolic and flavonoid contents of A. repens and C. monogyna methanol extracts were measured according to Folin Ciocalteu and aluminum nitrate methods, respectively. Antioxidant and enzyme inhibitory activities of the methanol extracts were tested spectrophotometrically. Also, cytotoxic activities of the methanol extracts against DLD-1 and CCD-18Co were investigated by using Alamar Blue assay. Results: C. monogyna methanol extract with the highest total phenolic and flavonoid contents (68.13±0.34 µg GAEs/mg extract and 36.91±0.17 µg QEs/mg extract, respectively) had the best antioxidant activity in ?-carotene-linoleic acid ($IC_50$: 32.72±0.15 µg/mL), CUPRAC ($A_0.50$: 282.69±0.25 µg/mL), DPPH• ($IC_50$: 71.69±0.85 µg/mL), and ABTS•+ ($IC_50$: 40.43±0.55 µg/ mL) assays. A. repens methanol extract showed the highest effect against AChE (18.73±0.47 %), BChE (37.59±1.07 %), urease (89.18±0.84%), ?-glucosidase (6.71±0.23 %), whereas C. monogyna methanol extract showed the highest effect against tyrosinase (30.52±1.00%) and ?-amylase (37.24±0.06 %). Also, A. repens ($IC_50$: 57.38 µg/mL) and C. monogyna ($IC_50$: 54.04 µg/ mL) methanol extracts showed close cytotoxic activity on DLD-1. Conclusion: Antioxidant, cytotoxic, and enzyme inhibitory activities of A. repens and C. monogyna methanol extracts were investigated with total phenolic and flavonoid contents in this study. The results obtained with this study strengthen the potential of the studied plants as a new source for the discovery of antioxidant, cytotoxic, and enzyme inhibitor agents.
Bağımsız Türk Cumhuriyetleri Bayraklarının Görsel İletişim Tasarım Teknikleri Açısından Analizi
(2023) Uğur, Engin; Kısa, Mustafa
Her yönü ile kardeş kabul ettiğimiz Bağımsız Türk Cumhuriyetleri, yaklaşık otuz sene önce Sovyet Sosyalist Cumhuriyetler Birliğinin dağılmasından sonra bağımsızlıklarını ilan etmişlerdir. Geçen zaman içerisinde Bağımsızlığını ilan eden Türk Cumhuriyetleri bir yandan Sovyetler birliğinin yönetim anlayışından kaynaklanan eksiklikleri, problemleri, yanlış algı ve tutumları değiştirmeye çalışırlarken diğer yandan ülkelerinin kalkınmaları için her alanda çalışmalar yapmaktadırlar. Geçmişten gelen kimlik ve değerlerine sahip çıkan bağımsız ve uygar bir ülke olma yolunda ilerlemektedirler. Bilimsel ve kültürel faaliyetlerin ışığında yapılan tüm çalışmaların gelişmiş ülkeler dikkate alındığında daha kat edilecek mesafelerin olduğu görülmektedir. Bağımsız bir ülke olmanın ilk aşaması, kendi milli ve manevi değerlerini çok iyi ifade eden marşa ve bayrağa sahip olmaktır. Bir ülkenin bayrağı ülke kimliği açısından önemli bir unsurudur. Ülke bayrağı, hem görsel açıdan hem de taşıdığı anlam açısından önemli sorumluluklara sahiptir. İşletmelerin logoları gibi zamanın değişen şartlarına göre değiştirilme veya revizyon şansı yoktur. Bu nedenle çok ciddi ve kapsamlı çalışmalar sonucunda hazırlanarak ülke var oldukça her zaman beğeniyle gönderdeki yerinde dalgalanmalıdır. Ülke bayrağındaki her bir görsel, yazı veya renk unsurunun derin arka planı olmalıdır. Bu nedenle ülke bayrakları diğer görsel unsurlar gibi tek düze değerlendirme kriterleri ile değerlendirilemez. Bağımsız Türk devletlerine ait bayraklar görsel iletişim kavramları çerçevesinde kişisel bakış açısı ile değerlendirilmeye çalışılmış ve analizi yapılmıştır.
Ball Throwing Machine Design To Develop Footballers’ Technical Attributes
(2021) Arslan, Cemile; Arslan, Mustafa; Yalçın, Gökhan; Kaplan, Turgut; Kahramanlı, Humar
For a football player to perform well in football, it is necessary to improve his technical and tactical skills. Improving these skills is enabled with the repetition of the same positions that the football player has the ball. The repetitions of these same positions can be performed with the aid of a machine. In this study, a football throwing machine design that can provide direction and velocity for the ball in a repeatable and controllable manner is generated for full educational evaluation. Ball loading canister on the ball throwing machine enabled to use of many balls. There are a couple of ball throwing wheels both are made of polyurethane material and have a concave surface. These wheels are mounted on a body for axial rotation on common ground. Each wheel’s rotation speed can be adjusted individually. To determine the horizontal-vertical direction of movement of the ball, two linear actuators are used. Ball’s velocity, direction, orbit, and throwing laps are controlled electronically. All controls concerning ball throwing are carried out via Delta PLC (Programmable Logic Controller) and HMI (Human Machine Interface) panel. A user interface is developed for controls made via PLC. Owing to the interface, different training plans are designed by handler or trainer via operator panel, and footballer is provided to train in various densities. To prevent toppling tripod system, and to carry easily a towing arm is used. The machine can work with an accumulator or feed directly from the grid circuit.
Beyaz Peynir, Çiğ Süt, Kıyma ve İnegöl Köftede Staphylococcus Aureus Kaynaklı İntoksikasyon Riskini Değerlendirmede Kültür ve İmmunolojik Yöntemlerin Karşılaştırılması
(2018) Telli, Nihat; Yörük, Gamze Nuray; Telli, Arife Ezgi; Cebirbay, Muhammed Ali; Sayar, Ahmet Güner
Amaç: Konya’da tüketime sunulan beyaz peynir, çiğ süt, kıyma ve İnegöl köfte örneklerinin fiziksel, kimyasal ve mikrobiyolojik kalitelerinin ortaya konması ve Staphylococcus aureus (S. aureus) kontaminasyonu ile toksin varlığının tespiti amaçlanmıştır. Gereç ve Yöntem: Araştırmada beyaz peynir (n=50), çiğ süt (n=50), kıyma (n=50) ve İnegöl köfte (n=50) olmak üzere 200 numune kullanılmıştır. Numuneler fiziksel ve kimyasal (pH, asidite ve kuru madde) ve mikrobiyolojik [toplam mezofilik aerobik bakteri (TMAB), toplam psikrofilik aerobik bakteri (TPAB), koliform, laktik asit bakterisi (LAB), S. aureus] açıdan değerlendirilmiştir. Stafilokokal enterotoksinlerin (SEs) varlığı enzymelinked fluorescent immunoassay’a (ELFA) dayalı VIDAS Staph enterotoksin kiti ile araştırılmıştır. Bulgular: Çiğ süt, beyaz peynir, kıyma ve İnegöl köftelerde ortalama pH değerleri sırasıyla, 6.53, 4.82, 5.99 ve 6.63; kuru madde değerleri % 12.51, % 37.71, % 38.97, % 49.70 ve laktik asit cinsinden asiditeleri de % 0.16, % 0.67, % 0.08 ve % 0.40 olarak bulundu. TMAB sayıları 4.53 - 9.86 log10kob/g-ml; TPAB 3.39 - 7.69 log10kob/g-ml; koliform bakteri 2.04 - 8.53 log10kob/g-ml; LAB 2.90 - 7.64 log10kob/g-ml ve S. aureus sayıları 2.61 - 6.46 log10kob/g-ml arasında bulundu. İnegöl köfte örneklerinin 1’i (% 2) ve kıyma örneklerinin 29’unda (% 58) SEs tespit edildi. Öneri: S. aureus'un tüm suşlarının SE’lerin üretiminden sorumlu olmamalarından dolayı stafilokokal gıda intoksikasyonlarının değerlendirilmesinde ve güvenli gıda üretiminde kültürel yöntemlerle birlikte SE varlığının araştırılmasının da önemli olduğu düşünülmektedir
Cam Lif Takviyeli Betonun Yangın Dayanımlarının Çeşitli Parametreler Açısından İrdelenmesi
(2019) Ali, Ali Murthada; Arslan, Musa Hakan; Altın, Mustafa
Cam lifi taze beton karışımına eklenerek betonun mekanik özellikleri iyileştirilmektedir. Literatürde cam lif takviyeli betonun (CTB) mekanik özelliklerinin tespitine yönelik çok sayıda araştırma yapılmıştır. Beton içine cam lifi eklenerek özellikle betonun eğilme ve çekme dayanımında hatırı sayılır artışlar meydana gelmekte, bu şekilde üretilmiş olan betonlar daha ince kesitli oldukları için de uygulamada tercih edilmektedirler. Betonun içine eklenen cam lifinin betonun yangın performansına olumsuz bir etki yapıp yapmadığına yönelik kapsamlı bir araştırma olmadığı için bu çalışmada dört farklı (30,60, 90 ve 120 dk) yangın sürelerine tabi tutulmuş cam lif takviyesiz beton ile CTB elemanlarının yangın sonrasındaki mekanik özelliklerindeki değişiklikler incelenmiştir. Deneysel çalışma kapsamında Ø15/30 cm silindir ve 4x4x16 cm prizmadan oluşan toplam 300 adet numune üretilmiştir. Numunelerde kullanılan 0,5,10,15 ve 20 kg/m3 oranlarındaki cam elyaf takviyeli betonların değişik sürelerde yangın sonrasındaki basınç ve üç farklı çekme (yarma, tek noktadan eğilme ve iki noktadan eğilme) dayanımı üzerindeki etkisi farklı sürelerde yangına maruz bırakılan CTB elemanları üzerinden test edilmiştir. Yangın geçirmemiş numunelerde cam lifi basınç dayanımına bir katkıda bulunmazken çekme dayanımında önemli oranlarda katkısı olmuştur. 30 dakikalık yangın sonrasında CTB numunelerin tek ve çift noktadan eğilme deneylerinden elde edilen çekme dayanımlarında yangın öncesine göre bir artış görülmüştür. Daha uzun süreli yangınlarda (60, 90 ve 120 dk) ise bu oranda bir artış meydana gelmemiştir.
Carbon Dots Applications in Electrochemical and Electrochemiluminescence Sensors: Some Examples of Pathogen Sensors
(2020) Dinç Saliha; Günhan
The ongoing worldwide pandemic of the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has revealed that simple, fast, low-cost, reliable, and portable sensor systems should be developed immediately. Electrochemical and electrochemiluminescence (ECL) based pathogen sensors are promising alternatives to conventional methods due to several advantages including in situ and fast response time, high sensitivity, low cost, being portable, easy-to-operate and simple to construct using different receptors including, antibody, enzyme, DNA, aptamer, etc. Carbon dots/graphene quantum dots have been used as labels, electrode material, ECL luminophores, electrode modification materials, amplifier, reaction catalysts to increase sensitivity and selectivity of electrochemical and ECL sensors. In this mini-review, the latest applications of carbon dots in electrochemical and ECL based sensors are summarized and some examples of pathogen sensors are given.
Citation - WoS: 7
Citation - Scopus: 6
Characteristics and Evolution of the Etili Silica Sinter Epithermal Deposits, Canakkale - Turkey: Relation To Alkali Chloride Vs Acid-Sulfate Fluids
(Elsevier, 2022) Ercan, Hatice Ünal; Ece, O. Işık; Schroeder, Paul A.; Gülmez, Fatma
The Oligo-Miocene Etili epithermal deposits are a well-preserved fossil geothermal system in the Canakkale Region and is one of the largest fossil siliceous hot spring deposits of Turkey. Main E-W and NE-SW trending faults systems occur with minor NW-SE fracture systems perpendicular to the main faults. Silica-rich deposits are commonly observed in or on the calc-alkaline tuffs, ashes and pyroclastic rocks that were the products of the magmatism controlled by the extensional tectonic regime. The Etili epithermal system was examined at two representative locations including the Hamamtepe and Muratlar sites. Morphologies of the proximal apron were defined by lithofacies that included silica infiltrate, spring conduits, nodular and finely laminated geyserite, sinter clast breccia, silicified volcanic rocks, and epithermal veins. Microfossils were detected in mat structures developed in the proximal apron. The silica deposits have low abundances of altered mineral assemblages (e.g., kaolinite, halloysite, and alunite), which are otherwise commonly observed in the region. The origin of the Etili Fossil Silica Sinter Region (EFSSR) was constrained by using geochemical and isotopic data. delta O-18 and dD isotopic values of kaolinites ranged +9.4/+9.6 parts per thousand; to 84/74 parts per thousand respectively. delta O-18 isotopic values from siliceous and silicified samples ranged from 8.3 to 18.4 parts per thousand, which shows two different formation types for the Etili Fossil Silica Sinter Region. We hypothesized hypogene origins for the kaolins and a mixed hypo/supergene origin for siliceous and silicified samples. The calculated model formation temperature from the delta O-18 values of the silica and siliceous samples is in the range of 63 degrees to 140 degrees C. delta S-34 isotopic values of alunite ranged from -19.6 to +16.6 parts per thousand, which also indicated two different sources that include magmatic hydrothermal and meteoric waters affected by bacterial activity. The timing of acid-sulphate alteration can be grouped into three periods by Ar-40/Ar-39 dating of alunites. These ages are: (A) 32.4 +/- 1.2 to 22.6 +/- 0.22 Ma in the Muratlar silica site, (B) 12.3 +/- 0.3 to 15.2 +/- 0.3 Ma in the northern part of the Hamamtepe site and (C) 5 +/- 0.18 to 7 +/- 0.3 Ma in the southern part of the Hamamtepe silica site. These consistent findings show that the emplacement periods of the Evciler pluton and the ages of alteration deposits are similar to each other. Silica sinters and geyser mounds represent very late stage near-neutral pH alkali chloride geothermal activities. The epithermal deposits in the EFSSR comprises a complex history of three different hydrothermal processes, each of which have different compositional and temporal emplacement periods related to the Evciler pluton.
Citation - Scopus: 6
Chemical Composition, in Vitro Antimicrobial and Antioxidant Activities of Marine Macroalgae Codium Fragile (suringar) Hariot
(2022) Keskinkaya, Hatice Banu; Güneş, Erdoğan; Okudan, Emine Şükran; Akköz, Cengiz; Gümüş, Numan Emre; Karakurt, Serdar; Deveci, Ebru
Marine algae, which are the primary producers living in aquatic areas, are the subject of many studies due to their importance as they are eukaryotic and eutrophic organisms that play a crucial role in the pharmaceutical, cosmetic, food, fuel, and textile industries. Macroalgae are known in producing several macronutrients, micronutrients, and other important biologically active compounds (e.g. polyphenols, enzymes, and antibiotics) with potential pharmacological uses. In this research, we aimed to investigate the chemical composition, antimicrobial and antioxidant activities (with three assays), total phenolic (TPC) and flavonoid (TFC) contents of the methanol, ethanol, acetone, and water extracts of Codium fragile (Suringar) Hariot. The LC-ESI-MS/MS assessment allowed the identification of seven compounds containing gallic acid, 4-hydroxybenzaldehyde, 4-hidroxybenzoic acid, p-coumaric acid, salicylic acid, biochanin A, and diosgenin. TPC and TFC of the extracts were calculated as in the range of 10.34±0.13-64.67±0.02 µg GAEs/mg extract and 12.73±2.68-36.78±1.08 µg QEs/mg extract, respectively. All extracts of C. fragile showed antimicrobial activity against all test pathogens at different levels. The methanol, ethanol, and acetone extracts showed different levels of activity against gram-negative and gram-positive bacteria (MIC: 3.125-1.562 mg/mL). The water extract showed the highest activity in ABTS•+ (70.43±14.85%) and DPPH• (72.61±11.44%) assays while the acetone extract exhibited the best activity in CUPRAC (absorbance: 0.60±0.15) assay. The results we obtained approved that C. fragile could be valued as a natural source of bioactive agents for food preservatives and in other industrial and pharmaceutical fields.
Classification of Environmental Attitudes With Artificial Intelligence Algorithms
(2024) Köklü, Niğmet; Sulak Süleyman Alpaslan
The study aims to examine people's attitudes towards the environment. Environmental education provides the necessary awareness to effectively address environmental issues. It is stated that attitudes towards the environment are very important and negative attitudes can worsen environmental problems. For this purpose, a dataset was obtained by using a scale consisting of 37 variables to a participant group consisting of 384 people. With this dataset, attitudes towards the environment have been analyzed usingvarious classification algorithms. Logistic Regression (LR), Support Vector Machine (SVM) and Decision Tree (DT) models were used in the research. The LR, SVM, and DT models achieved 94.53%, 92.96%, and 82.55% classification success, respectively It is seen that the classification achievements of the models are at an acceptable level compared to the literature. As a result, the research sheds light on people's attitudes towards the environment through classification processes. Despite the acceptable classification achievements, alternative artificial Intelligence approaches can also be used to improve performance.
Citation - WoS: 20
Citation - Scopus: 29
Classification of Flame Extinction Based on Acoustic Oscillations Using Artificial Intelligence Methods
(ELSEVIER, 2021) Taşpınar, Yavuz Selim; Köklü, Murat; Altın, Mustafa
Fire, one of the most serious disasters threatening human life, is a chemical event that can destroy forests, buildings, and machinery within minutes. For this reason, there have been numerous methods developed to extinguish the fire. Within the scope of this study, a sound wave flame extinction system was developed in order to extinguish the flames at an early stage of the fire. The data used in the study were obtained as a result of experiments conducted with the developed system. The created dataset consists of data obtained from 17,442 experiments. It is aimed to classify the fuel type, flame size, decibel, frequency, airflow and distance features, and the extinction-non-extinction status of the flame through rule-based machine learning methods. In the study, rule-based machine learning methods, ANFIS (Adaptive-Network Based Fuzzy Inference Systems), CN2 Rule and DT (Decision Tree) were used. The methods of Box Plot, Scatter Plot and Correlation Analysis were utilized for statistical analysis of the data. As a result of the classifications, respectively, 94.5%, 99.91%, and 97.28% success were achieved with the ANFIS, CN2 Rule, and DT methods. As a result of the evaluations made by using Box Plot, Scatter Plot and Correlation Analysis.
Citation - WoS: 3
Citation - Scopus: 4
Cnn Based Sensor Fusion Method for Real-Time Autonomous Robotics Systems
(Tubitak Scientific & Technical Research Council Turkey, 2022) Yıldız, Berat; Durdu, Akif; Kayabaşı, Ahmet; Duramaz, Mehmet
Autonomous robotic systems (ARS) serve in many areas of daily life. The sensors have critical importance for these systems. The sensor data obtained from the environment should be as accurate and reliable as possible and correctly interpreted by the autonomous robot. Since sensors have advantages and disadvantages over each other they should be used together to reduce errors. In this study, Convolutional Neural Network (CNN) based sensor fusion was applied to ARS to contribute the autonomous driving. In a real-time application, a camera and LIDAR sensor were tested with these networks. The novelty of this work is that the uniquely collected data set was trained in a new CNN network and sensor fusion was performed between CNN layers. The results showed that CNN based sensor fusion process was more effective than the individual usage of the sensors on the ARS.
Computer Control of Z-Axis Movement in Micro Drilling Machine
(2020) Terzioğlu, Hakan; Yalçın, Gökhan; Neşeli, Süleyman
In this study, the automatic control of the feed axis is aimed to drill holes in micron diameters and precision by using a desktop drill. The control was carried out with the Visual Studio C # interface program using the feed rate, drilling depth and exit speed parameters of the drill in one axis. At the same time, the microprocessor control card enables the stepper motor of the drill to be managed and communicates with the computer. Using EEPROM memory, it is possible to work without the need of a computer whose operating parameters are stored in memory. PIC18F2550 microprocessor control board is used to control all components of the machine. In this way, both stepper motor drive and communication with computer are provided. With the designed control circuit, drilling can be performed with 3,6 degree precision. As a result of the drilling process carried out at different speeds and lengths of micron diameter (0.18-0.25µ) drill bits with the system created, it was seen that ideal drilling process could be performed according to the desired quality characteristics of the machine.
Citation - Scopus: 6
Cytotoxic Activities of Methanol Extract and Compounds of Porodaedalea Pini Against Colorectal Cancer
(2021) Deveci, Ebru; Çayan, Gülsen Tel; Karakurt, Serdar; Duru, Mehmet Emin
Porodaedalea pini is a medicinally important mushroom with antioxidant, cytotoxic, immunostimulating, antitumor, antiviral and immunomodulating activities. Therefore, in this study, P. pini methanol extract and isolated compounds from the methanol extract were tested for cytotoxic activities against DLD-1 (colorectal cancer) and CCD-18Co (human colon fibroblast cell line) by using Alamar Blue assay. Cytotoxic activity on DLD-1 was decreased in the order of P. pini methanol extract> 4-(3,4- dihydroxyphenyl)but-3-en-2-one (3)> pinoresinol (2)> ergosta-7,24(28)-dien3?-ol (1). P. pini methanol extract was determined to have the best cytotoxic activity with the lowest IC50 value on DLD-1 (IC50: 25.33±0.29 µg/mL) and the highest IC50 value on CCD-18Co (434.30±1.45 µg/mL). Within the scope of the findings, it is thought that P. pini mushroom can be used as a new and natural agent in the treatment of colorectal cancer.
A Descriptive and Comparative Analysis of the Two Turkish Translations of Pride and Prejudice by Jane Austen
(2022) Küçükbezirci, Yağmur; Parlak, Neslihan
Translation norms have an important place in descriptive translation theory and these norms concern not only the translated texts but also the society and culture to which the texts belong. Norms are related to the behaviour and choices of translators in the translation process and therefore determine translation decisions. The decisions taken in translation process as lexical choices and preferred translation strategies determine which of the translators will be closer to the source or target languages and cultures. Thus, it becomes clear which of the poles of adequacy or acceptability is closer to translated text. The concepts of 'adequacy and acceptability' have recently been associated with the concepts of 'overt translation' and 'covert translation'. In overt translation, the translator's choices are in accordance with the values of the source text and its culture and therefore the translation text is conveyed without changing the foreign-the cultural elements- given in the source text. In this context it can be claimed that the reader can obtain Information about the source text culture. On the other hand, in covert translation, the cultural elements given in the source text are domesticated and presented to the reader with expressions familiar to the reader. In this context, the translator's choices prioritize the reader and the values of target culture. This study aims to provide a descriptive analysis of the two translation versions of Jane Austen's Pride and Prejudice, in the light of Gideon Toury's descriptive approach to the translation studies. Through making a comparative analysis between the source text and the two translation versions (target texts) via selecting sentences randomly from the source text and comparing them with the target texts in terms of lexical choice, revealing a comparative and objective analysis in terms of their equivalences is the main focus of this study without searching for translation errors in comparison to the source text. In order to present a descriptive analysis, Gideon Toury's norms will be used as a guide and on a macro level, Toury's equivalence theory; “adequacy or acceptability” and the terms overt and covert translation will be used for the comparison of the target texts in terms of word level
Designing a System That Records the Sleeping Position Data of Sleep Apnea Patients
(2022) Vatansev, Hülya; Vatansev, Hüsamettin; Gölcük, Adem; Taşdemir, Şakir; Balcı, Mehmet; Küçüktürk, Serkan
Sleeping positions have a significant impact on exposure of apnea patients to sleep apnea. In this study, the sleeping position of the patient was read with the STM microcontroller by using the body position sensor (SleepSense 1/8" Plug DC Body Position Sensor Kit) produced by the sleep sense company. This sensor produces results with analog signals between 0-2V. This analog signal was read using the ADC feature of the microcontroller. This signal read by the microcontroller was sent to the computer via the USB port. The C# software prepared on the computer reads the data from the microcontroller and saves this data and the arrival time of the data to the bit TXT file. The data in this TXT file is ready to be evaluated by signal processing methods. These data, together with other data obtained from the polysomnography device, can be used to learn the body position of the patient at the time of apnea.
Determination of Optimal Modulation Amplitude for Electron Spin Resonance (esr) Dating and Dosimetry Studies of Tooth Enamel
(2020) Karataş, Özgül
Fossil remains, which provide important information about past life and ecology, are especially important in natural history and life evolution. Recently, many interdisciplinary dating studies have been conducted and many different techniques have been used to investigate the data obtained in this field. Electron Spin Resonance (ESR) (or alternatively, Electron Paramagnetic Resonance, EPR) is one of the methods used in absolute dating and dosimetry studies. It is based on determination of the radiation-centered radicals obtained from the radiation dose absorbed by irradiated materials. One of the important problems in dosimetry and dating studies performed with ESR method is the dependence of experimental parameters on the accumulated dose. The accumulated dose value is effective in determining the actual result of the dating and dosimetric samples. This value is influenced from the stability of the ESR centers, experimental stages, sample preparation or measurement processes. In this study, how the modulation amplitude parameter affects ESR signal intensity in ESR dating and dosimetry studies of tooth enamel investigated. The selective archaeological animal tooth enamel sample was used from the archaeological site of Köşk Höyük, in Turkey for experimental studies. This sample was prepared with combined processes of mechanical and chemical treatment of tooth in laboratory. Tooth enamel sample was irradiated by 60Co gamma-ray source in dose of 1kGy. After irradiation, ESR spectra were recorded at different modulation amplitude values at room temperature using X-band ESR Spectrometer. According to the results obtained, the most suitable modulation amplitude values for ESR measurements of tooth enamel sample examined in the study.
Determining the Statistical Relationship Between the S20 Brittleness Index and Schmidt Hardness of Rocks
(Konya Technical University, 2019) Özşen, Hakan; Uysal, Abdullah; Dursun, Arif Emre
Determination of the brittleness of rocks is considered as an important preliminary design tool in different mining applications. The brittleness value is an important rock parameter used in the excavation and drilling of rocks. Schmidt's hardness is an inexpensive and easy-to-use surface hardness measure that is commonly used to determine the mechanical properties of rocks, such as strength, cuttability (linear and circular), and permeability. In this study, the S20 brittleness index values were determined by using NTNU model to determine the brittleness values of the rocks which was developed by Blindheim and Bruland (1998). The aim of this study was to investigate the relationship between the S20 brittleness index and Schmidt hardness (RL) values statistically. For this purpose, Schmidt hardness tests and S20 brittleness index tests on 7 different rock samples with different strength properties were performed. Schmidt hardness test values and S20 brittleness index values were statistically evaluated and correlated with SPSS. As a result of this evaluation, it was determined that there was a strong correlation between Schmidt hardness and S20 brittleness index values.
Citation - WoS: 18
Citation - Scopus: 19
Development of Highly Luminescent Water-Insoluble Carbon Dots by Using Calix[4]pyrrole as the Carbon Precursor and Their Potential Application in Organic Solar Cells
(Amer Chemical Soc, 2022) Coşkun, Yağız; Ünlü, Fatma Yelda; Yılmaz, Tuğbahan; Türker, Yurdanur; Aydoğan, Abdullah; Kuş, Mahmut; Ünlü, Caner
Carbon dots (CDs) are carbon-based fluorescent nanomaterials that are of interest in different research areas due to their low cost production and low toxicity. Considering their unique photophysical properties, hydrophobic/amphiphilic CDs are powerful alternatives to metal-based quantum dots in LED and photovoltaic cell designs. On the other hand, CDs possess a considerably high amount of surface defects that give rise to two significant drawbacks: (1) causing decrease in quantum yield (QY), a crucial drawback that limits their utilization in LEDs, and (2) affecting the efficiency of charge transfer, a significant factor that limits the use of CDs in photovoltaic cells. In this study, we synthesized highly luminescent, water-insoluble, slightly amphiphilic CDs by using a macrocyclic compound, calix[4]pyrrole, for the first time in the literature. Calix[4]pyrrole-derived CDs (CP-DOTs) were highly luminescent with a QY of over 60% and size of around 4-10 nm with graphitic structure. The high quantum yield of CP-DOTs indicated that they had less amount of surface defects. Furthermore, CP-DOTs were used as an additive in the active layer of organic solar cells (OSC). The photovoltaic parameters of OSCs improved upon addition of CDs. Our results indicated that calix[4]pyrrole is an excellent carbon precursor to synthesize highly luminescent and water-insoluble carbon dots, and CDs derived from calix[4]pyrrole are excellent candidates to improve optoelectronic devices.

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