Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi最新文献_第4页

Mollusc Diversity on the Hard Substrate of Gokceada Island 果子田岛硬基质上的软体动物多样性

Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi Pub Date : 2023-04-26 DOI: 10.53433/yyufbed.1199833

Zeynep Tekeli̇, Herdem Aslan, Ayşegül Bali̇

{"title":"Mollusc Diversity on the Hard Substrate of Gokceada Island","authors":"Zeynep Tekeli̇, Herdem Aslan, Ayşegül Bali̇","doi":"10.53433/yyufbed.1199833","DOIUrl":"https://doi.org/10.53433/yyufbed.1199833","url":null,"abstract":"Mollusc species diversity in 0.5 m depths of the hard substrate type coasts of Gokceada was investigated qualitatively and quantitatively, seasonally and monthly in 2010 and 2011. In addition, the mucilage event, which occurred in the Marmara Sea in 2020 and which also affected Gokceada due to the currents, was sampled in the summer of 2021 to investigate the mollusc fauna. A total of 77 mollusk species were identified and 27 of these species are new records for Gokceada. While Cardita calyculata (Linnaeus, 1758) is the most dominant species at the Yıldız Koy station which is sampled monthly, the most dominant species is Musculus costulatus (Risso, 1826) at all other sampling stations. The TP station was found the highest number of species and individuals. Limited human access to this area, different habitat types and also a small freshwater inflow can be shown as the reason for this situation. The low mollusc species diversity, which was detected in 2010 due to the pouring of sand for tourists by the municipality at Yıldızkoy station, has been revealed to have increased greatly in 2021 after this practice was abandoned. These results suggest that mollusc species living on the coasts of Gokceada are not acutely affected by mucilage. However, more detailed studies are needed to monitor and report this region in order to detect the negative effects that may occur in the region today and in the coming years and to protect the species diversity in this region.","PeriodicalId":386555,"journal":{"name":"Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126664099","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

Optimization of Parameters Affecting Thermal Efficiency in Heat Pipes Using Different Nanofluids with Taguchi Method 用田口法优化不同纳米流体对热管热效率的影响

Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi Pub Date : 2023-04-25 DOI: 10.53433/yyufbed.1242697

Ahmet Öztürk, Fatin Sönmez, Abdüssamed Kabakuş

引用次数: 0

Alkali Göllerden Elde Edilen Trona Madeninden Soda külü Üretimi: Van ve Arin Gölü Örnekleri, Van Gölü Havzası, Türkiye

Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi Pub Date : 2023-04-25 DOI: 10.53433/yyufbed.1259551

Vural Oyan

{"title":"Alkali Göllerden Elde Edilen Trona Madeninden Soda külü Üretimi: Van ve Arin Gölü Örnekleri, Van Gölü Havzası, Türkiye","authors":"Vural Oyan","doi":"10.53433/yyufbed.1259551","DOIUrl":"https://doi.org/10.53433/yyufbed.1259551","url":null,"abstract":"Bu çalışmada, Van gölü havzasındaki Van ve Arin göllerinin trona ve soda külü zenginliği araştırılmıştır. Sodyum ve karbon yönünden zengin bu göllerde doğal buharlaşma ile mevcut trona çökelmesi gözlemlenmiş ve göl sularından kimyasal yöntemlerle trona ve soda külü elde edilmiştir. Göllerden alınan 400 ml su numunesi üzerinde buharlaştırma, kalsinasyon, liç ve santrifüjleme yöntemleri uygulanmıştır. Bu deneyler sonucunda Van ve Arin gölü sularından sırasıyla 1 ve 3 gr trona ve soda külü elde edilmiştir. Bu veriler, 1 litre suda sırasıyla ortalama 2.5 ve 7.5 gr trona ve soda külü elde edilebileceğini göstermektedir. Nihai ürün olarak elde edilen soda külünün karakterizasyonunu belirlemek amacıyla X-ışınları kırınım (XRD), taramalı elektron mikroskobu (SEM-EDX) ve X-ışınları floresans (XRF) analizleri yapılmıştır. Nihai ürün üzerinde gerçekleştirilen XRD ve XRF analizleri, örneğin tamamına yakınının Na2CO3 (sodyum karbonat; soda külü) içerdiğini ve % 65 oranında Na2O içeriğine sahip olduğunu göstermiştir. SEM-EDX analizleri ham trona örneğine göre nihai ürünün Na ve C elementlerince zenginleştiğini ve nihai ürünün % 57-65 arasında Na2O içeriğine sahip olduğuna işaret etmiştir. Tüm bulgular, Van ve Arin göl sularının trona ve soda külü bakımından zengin olduklarını ve kimyasal yöntemlerle göl sularından soda külü elde edilebileceğini ortaya koymuştur.","PeriodicalId":386555,"journal":{"name":"Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125907501","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

BCL-2 Protein Family BCL-2蛋白家族

Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi Pub Date : 2023-04-19 DOI: 10.53433/yyufbed.1220984

Derya Babacan

引用次数: 0

The European grapevine moth's [Lobesia botrana Denis & Schiffermüller (Lepidoptera: Tortricidae)] adult population dynamics in Midyat Vineyards 米雅特葡萄园欧洲葡萄蛾[Lobesia botrana Denis & schifferm<e:1>]成虫种群动态

Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi Pub Date : 2023-04-15 DOI: 10.53433/yyufbed.1245314

Fuat Argiş, Mehmet Ramazan Risvanli, R. Atlıhan

{"title":"The European grapevine moth's [Lobesia botrana Denis & Schiffermüller (Lepidoptera: Tortricidae)] adult population dynamics in Midyat Vineyards","authors":"Fuat Argiş, Mehmet Ramazan Risvanli, R. Atlıhan","doi":"10.53433/yyufbed.1245314","DOIUrl":"https://doi.org/10.53433/yyufbed.1245314","url":null,"abstract":"The study was carried out to determine the first appearance of the adults of the European grapevine moth, Lobesia botrana Denis & Schiffermüller (Lepidoptera: Tortricidae)], the period when they are active in nature, their population fluctuation and generation number in this period in the vineyards of the Midyat district of Mardin province. The study was carried out in vineyards having an unregistered grape variety, Mazruni which is the most common grape in Midyat, in 2014 and 2015. The results indicated that the population of the pest was high in both years and adults of the moths were encountered in pheromone traps in early April. The pest gives three generations and generally forms three or four peaks in the grape vegetation period and these peaks coincide with the flowering period (May), the berry (chickpea size) period (June-July), the sweetening period of the grains (July-August), and the sweetening-harvest period (September), respectively. The pest remains active in vineyards for approximately seven months, thereafter overwinters between late October and early November. The results obtained provide essential information that helps pest control to be carried out at the appropriate time.","PeriodicalId":386555,"journal":{"name":"Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131346750","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

Effect of Co-60 Gamma Irradiation on the Fluxgate Sensor’s Cores Co-60 γ辐照对磁通门传感器芯的影响

Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi Pub Date : 2023-04-14 DOI: 10.53433/yyufbed.1252501

H. Can

引用次数: 0

Homogeneity and Change Point Detection Analysis of Seasonal and Annual Precipitation and Temperature Series Van, Turkiye 季节和年降水和温度序列的同质性和变化点检测分析

Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi Pub Date : 2023-04-07 DOI: 10.53433/yyufbed.1204538

I. Yasa, Mehmet Ishak Yüce, Musa Eşit

{"title":"Homogeneity and Change Point Detection Analysis of Seasonal and Annual Precipitation and Temperature Series Van, Turkiye","authors":"I. Yasa, Mehmet Ishak Yüce, Musa Eşit","doi":"10.53433/yyufbed.1204538","DOIUrl":"https://doi.org/10.53433/yyufbed.1204538","url":null,"abstract":"Abstract: Researcher which study water resources, hydrological processes, and climate change fields are given of high importance to the accuracy and consistency of historical temperature and precipitation series. In this regard, Homogeneity tests are a helpful tool to manage the accuracy and consistency of the data. In this study, the homogeneity of seasonal and annual temperature and precipitation is examined using Standard Normal Homogeneity (SNHT), Pettitt (PT), Buishand Range (BR), and Cumulative Deviation (CD) tests at a significance level of 0.05. The four homogeneity tests are assessed using long-term annual and seasonal precipitation and temperature records obtained from five meteorological stations located in Van, Turkey. Finally, change point detection is investigated for each station. According to the results, the annual mean temperature rejects H0 hypothesis for all stations by four tests. While Ha alternative hypothesis is accepted for stations 17172 and 17852 and 17880 at annual total precipitation, stations 17784 and 17812 are observed as doubtful. Seasonal results revealed that although it is rarely seen that there is homogeneity, it can be concluded that the homogeneity is broken in the precipitation and temperature data, especially in the temperature data. It can be seen that stations 17784 and 17852 generally experienced changes after 2000, whereas stations 17172, 17812, and 17880 experienced changes before this year in the series. The results of this study constitute a source of information in terms of the reliability of the meteorological data series used in climate research, hydrological modeling, and statistical research to be carried out in this region. As a result, the reliability of the data should be questioned in the studies to be carried out in the Van region and the data should be made reliable in the projects to be carried out.","PeriodicalId":386555,"journal":{"name":"Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131129019","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

Cofinitely Semisimple (ss-) Lifting Modules 有限半简单(ss-)提升模块

Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi Pub Date : 2023-04-03 DOI: 10.53433/yyufbed.1143435

F. Eryilmaz

引用次数: 0

Flame Retardant Compounds Used in Epoxy Resins: Review 环氧树脂中阻燃化合物的研究进展

Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi Pub Date : 2023-03-31 DOI: 10.53433/yyufbed.1153811

Kaan Aksoy

{"title":"Flame Retardant Compounds Used in Epoxy Resins: Review","authors":"Kaan Aksoy","doi":"10.53433/yyufbed.1153811","DOIUrl":"https://doi.org/10.53433/yyufbed.1153811","url":null,"abstract":"Epoksi reçineler, ısıya, neme ve kimyasallara karşı mükemmel dirençleri, yüksek gerilme mukavemeti, kürleme işlemi sırasında düşük büzülme ve mükemmel boyutsal stabiliteleri nedeniyle, elektrik ve elektronik endüstrileri, nakliye, kaplamalar, yapıştırıcılar ve kompozitlerde yaygın olarak kullanılmaktadır. Epoksi reçineler oldukça yanıcıdır ve yanıcılık özellikleri, yüksek alev dayanımı gerektiren alanlarda kullanımlarını ciddi şekilde sınırlar. Bu zorlu problemin üstesinden gelmek için halojen bazlı alev geciktiriciler, organik fosfor bileşikleri (amonyum polifosfat ve melamin polifosfat gibi), mineral bileşikler (alüminyum trihidrat ve magnezyum hidroksit gibi), azot ve silikon katkısı gibi çeşitli çözümler, şişen alev geciktirici ve nanopartiküller önerilmiştir. Çoğu fosforlu bileşik, alev geciktirici epoksi reçinelerinde halojen bileşikleri yerine kullanılır. Alev geciktiricilerde katkı maddesi olarak farklı fosfor bileşikleri kullanılır. Alev geciktirici katkılarla karşılaştırıldığında, epoksi reçinelerdeki reaktif organik fosfor bileşikleri mükemmel alev geciktirici verim gösterir. Bu bileşikler, sertleştirici ajanın bir parçası olarak polimerin kafes gövdesine kimyasal olarak aktarılabilir veya epoksi reçinelerin kendi yapıları tarafından, doğal alev geciktirici özelliği indüklenebilir. Bu bildiride, alev geciktiricilerin sınıflandırılması (halojen, organik fosfor bileşikleri, mineraller, nitrojen ve silikon esaslı malzemeler, şişen alev geciktirici ve nanokompozitler) polimerlerin yanma döngüsü ve epoksi reçineler için özellikle fosfor bazlı malzemeler olmak üzere alev geciktiricilerin uygulanması incelenmiştir. UL-94, sınırlayıcı oksijen indeksi ve koni kalorimetri gibi çeşitli alev geciktirici değerlendirme testleri de kısaca açıklanmıştır.","PeriodicalId":386555,"journal":{"name":"Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116836445","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

23 Ekim 2011 Van, Türkiye Depremi Sırasında Gedikbulak Okul Binasının Yıkılması

Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi Pub Date : 2023-03-31 DOI: 10.53433/yyufbed.1229265

Halit Mertol

{"title":"23 Ekim 2011 Van, Türkiye Depremi Sırasında Gedikbulak Okul Binasının Yıkılması","authors":"Halit Mertol","doi":"10.53433/yyufbed.1229265","DOIUrl":"https://doi.org/10.53433/yyufbed.1229265","url":null,"abstract":"A major earthquake with a magnitude Mw = 7.2 (ML = 6.7) occurred on Eastern part of Turkey on October 23, 2011. The ground motion had a measured peak ground acceleration of 0.18×g. The earthquake resulted in damage in masonry and reinforced concrete structures ranging from minor cracking to total collapse. A 4-story reinforced concrete school building in Gedikbulak Village experienced total failure during this earthquake. This school building was a typical project (No: 10370) prepared by the Ministry of Education of Turkey and this typical project was widely being used for the construction of school buildings in various locations throughout Turkey. This paper explains the site observations of Atılım University Reconnaissance Team carried out at the collapse site of the school building few days after the main shock and detailed analysis with an emphasis on the reason of failure of the school building. The results of the analysis indicated that the collapse happened due to the separation of the bottom of shear walls (in both x- and y-directions) from the foundation due to inadequate development and lap splice length of the plain reinforcing bars. Comments were made for existing school buildings to prevent any collapses in the future earthquakes.","PeriodicalId":386555,"journal":{"name":"Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129120926","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