Gazi University Journal of Science Part A: Engineering and Innovation最新文献

A Conceptual Model to Measure Digital Maturity Level in Electricity Distribution Companies 衡量配电公司数字化成熟度的概念模型

Gazi University Journal of Science Part A: Engineering and Innovation Pub Date : 2024-03-25 DOI: 10.54287/gujsa.1424764

Ezgi Avci

引用次数: 0

On the voltage dependent series resistance, interface traps, and conduction mechanisms in the Al/(Ti-doped DLC)/p-Si/Au Schottky Diodes (SDs) 铝/（掺钛 DLC）/对硅/金肖特基二极管（SD）中与电压有关的串联电阻、界面陷阱和传导机制

Gazi University Journal of Science Part A: Engineering and Innovation Pub Date : 2024-03-25 DOI: 10.54287/gujsa.1405552

Sabreen Hameed, Öznur Çapraz, Seçkin ALTINDAL YERİŞKİN

{"title":"On the voltage dependent series resistance, interface traps, and conduction mechanisms in the Al/(Ti-doped DLC)/p-Si/Au Schottky Diodes (SDs)","authors":"Sabreen Hameed, Öznur Çapraz, Seçkin ALTINDAL YERİŞKİN","doi":"10.54287/gujsa.1405552","DOIUrl":"https://doi.org/10.54287/gujsa.1405552","url":null,"abstract":"In this study, Al-(Ti:DLC)-pSi/Au Schottky Diode (SD) was manufactured instead of conventional metal-semiconductor (MS) with/without an insulator-layer and then several fundamental electrical characteristics such as ideality-factor (n), barrier-height , series-shunt resistances (Rs, Rsh), concentration of acceptor-atoms (Na), and depletion-layer width (Wd), were derived from the forward-reverse bias current-voltage (I-V), capacitance and conductance as a function of voltage (C/G-V) data using various calculation-methods. Semi logarithmic IF-VF plot shows a linear behavior at lower-voltages and then departed from linearity as a result of the influence of series resistance/Rs and organic-interlayer. Three linear regions can be seen on the double-logarithmic IF-VF plot. with different slopes (1.28, 3.14, and 1.79) in regions with low, middle, and high forward bias, which are indicated that Ohmic, trap charge limited current (TCLC), and space charge limited current (SCLC), respectively. Energy dependent surface states (Nss) vs (Ess-Ev) profile was also obtained from the Card-Rhoderick method by considering voltage dependence of n and and they were grown from the mid-gap energy up to the semiconductor's valance band (Ev). To see the impact of Rs for 1 MHz, the measured C/G-V graphs were amendment. All results are indicated that almost all electrical parameters and conduction mechanism are quite depending on Rs, Nss, and calculation method due the voltage dependent of them.","PeriodicalId":134301,"journal":{"name":"Gazi University Journal of Science Part A: Engineering and Innovation","volume":" 86","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140384895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the optical and gas-sensing performance of Zn-doped CuO films 掺锌氧化铜薄膜的光学和气体传感性能研究

Gazi University Journal of Science Part A: Engineering and Innovation Pub Date : 2024-03-22 DOI: 10.54287/gujsa.1433100

Sezen Teki̇n

引用次数: 0

Strontium Accumulations by Teucrium polium which Grows Naturally in Serpentine Soils 在蛇纹石土壤中自然生长的柚木的锶积累情况

Gazi University Journal of Science Part A: Engineering and Innovation Pub Date : 2024-03-21 DOI: 10.54287/gujsa.1444350

Nevin Konakci

引用次数: 0

Falling Body Motion in Time Scale Calculus 时标微积分中的落体运动

Gazi University Journal of Science Part A: Engineering and Innovation Pub Date : 2024-03-21 DOI: 10.54287/gujsa.1427944

N. N. Pelen, Z. Kayar

引用次数: 0

A novel method for assessing the weight coefficients of criteria within the framework of multi-criteria decision-making: Measurement relying on the impacts of an exponential curve function (MIEXCF) 在多标准决策框架内评估标准权重系数的新方法：依靠指数曲线函数（MIEXCF）的影响进行测量

Gazi University Journal of Science Part A: Engineering and Innovation Pub Date : 2024-03-15 DOI: 10.54287/gujsa.1419551

F. Altintaş

引用次数: 0

One-pot Synthesis of Graphene Oxide-MnO2-Polyaniline Nanocomposites and Their Photothermal Properties 氧化石墨烯-二氧化锰-聚苯胺纳米复合材料的单锅合成及其光热特性

Gazi University Journal of Science Part A: Engineering and Innovation Pub Date : 2024-03-15 DOI: 10.54287/gujsa.1420777

Z. Çıplak, F. Soysal

引用次数: 0

Examining The Blood-Feeding Interactions During Intra- and Interspecific Adult Competition between Aedes albopictus and Aedes aegypti -a Laboratory Study 白纹伊蚊和埃及伊蚊成虫在种内和种间竞争过程中的采血相互作用--一项实验室研究

Gazi University Journal of Science Part A: Engineering and Innovation Pub Date : 2024-02-19 DOI: 10.54287/gujsa.1424961

Fatma Bursalı

{"title":"Examining The Blood-Feeding Interactions During Intra- and Interspecific Adult Competition between Aedes albopictus and Aedes aegypti -a Laboratory Study","authors":"Fatma Bursalı","doi":"10.54287/gujsa.1424961","DOIUrl":"https://doi.org/10.54287/gujsa.1424961","url":null,"abstract":"Aedes albopictus and Ae. aegypti are striped mosquitoes with similar behavioral characteristics. They are known vectors of dangerous arboviruses and are expanding their reach globally. These species have established in specific areas of Türkiye, with Ae. albopictus expanding significantly than Ae. aegypti. While the larval competition of these two mosquito species has been studied, not much is known about their interactions during adulthood. We first investigated the effects of interspecific and intraspecific larval competition on the survival rate into adulthood and the wing length of females and males in containers of different sizes and food level conditions. This research also explored how females of these mosquitoes compete for blood meals in confined environments and its effects on blood feeding rates and female fecundity. Larval competition hinders Ae. aegypti emergence, Ae. albopictus remains resilient across varying resource levels. Notably, both species displayed increased blood feeding rates when housed together, suggesting potential facilitation or competitive avoidance strategies. Interspecific pressure caused a decrease in the number of eggs laid in mixed species cages for Aedes aegypti only. This study highlights the complex competitive dynamics between Ae. albopictus and Ae. aegypti. While larval competition appears to affect Ae. aegypti emergence. Further understanding of adult interactions is crucial for predicting their co-occurrence and effectively managing their populations, especially as Ae. albopictus shows greater adaptability and expansion within Türkiye.","PeriodicalId":134301,"journal":{"name":"Gazi University Journal of Science Part A: Engineering and Innovation","volume":"98 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140451321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of Current-Voltage Properties of Al/p-si Schottky Diode with Aluminium Oxide Layer 带氧化铝层的 Al/p-si 肖特基二极管的电流-电压特性分析

Gazi University Journal of Science Part A: Engineering and Innovation Pub Date : 2024-02-19 DOI: 10.54287/gujsa.1413932

Elanur Di̇ki̇ci̇oğlu, B. Polat

引用次数: 0

Genres Classification of Popular Songs Listening by Using Keras 使用 Keras 对流行歌曲听力进行流派分类

Gazi University Journal of Science Part A: Engineering and Innovation Pub Date : 2024-02-15 DOI: 10.54287/gujsa.1374878

I. Tarimer, Buse Cennet Karadag

{"title":"Genres Classification of Popular Songs Listening by Using Keras","authors":"I. Tarimer, Buse Cennet Karadag","doi":"10.54287/gujsa.1374878","DOIUrl":"https://doi.org/10.54287/gujsa.1374878","url":null,"abstract":"Listening to the music affects the brain in ways which might help to promote the human health and arrange various diseases symptoms. Music is a phenomenon that is intertwined at every stage of human life. In the modern era music is formed by the combination of an incredible number of genres, some of which are contemporary, and some come from the past. The music genre represents a collection of musical works that develop according to a certain shape, expression and technique. The music genre of interest varies from person to person in society. Most listeners today do not know what kind of music they listen to. In this study, sound features were extracted from music data and the Keras model was trained using these features. The correct classification rate of a music genre of the trained model was determined as 71.66%. Mel Frequency Cepstral Coefficients (MFCC), Mel Spectrogram, Chroma Vector and Tonnetz methods in the Librosa library were used to extract sound properties from music data. Using the features calculated by the Librosa library, the most listened songs with Shazam in Türkiye were classified in with TensorFlow/Keras. Many methods can be used in classification. It is unclear which method the researchers should prefer. With this study, researchers will know classification with Keras, researchers who do not know about music will know music and know the genre of newly released songs.","PeriodicalId":134301,"journal":{"name":"Gazi University Journal of Science Part A: Engineering and Innovation","volume":"221 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140455864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0