Aksaray University Journal of Science and Engineering最新文献_第6页

Ullmann Type N-Arylation Reactions of Iodo Pyrazoles with Phenyl Boronic Acid in Cu2O Catalyst 在Cu2O催化剂下碘吡唑与苯硼酸的Ullmann型n -芳基化反应

Aksaray University Journal of Science and Engineering Pub Date : 2019-01-01 DOI: 10.29002/asujse.475842

M. Hinis, A. Menteş

{"title":"Ullmann Type N-Arylation Reactions of Iodo Pyrazoles with Phenyl Boronic Acid in Cu2O Catalyst","authors":"M. Hinis, A. Menteş","doi":"10.29002/asujse.475842","DOIUrl":"https://doi.org/10.29002/asujse.475842","url":null,"abstract":"Ullmann type reactions are one of the most effective methods to carry out the N-arylation of the pyrazole using copper catalyst. The Ullmann reaction carried out by conventional methods occur under hard reaction conditions using copper reagents at stoichiometric ratio and at high temperatures. With the development of more efficient copper catalysts, studies in this field have been continued and very efficient copper/ligand systems have been developed under mild conditions. Although it is known that many of copper / ligand system reactions are carried out under relatively mild conditions to increase the efficiency of Ullmann type reactions, in recent years, studies have been made on simpler catalyst systems which are ligand free and \"green\" solvents or solvent free. In this study, in order to contribute to N-arylation of pyrazoles in mild conditions, 4-Iodo-1phenyl -1H-pyrazole (Ph-IPz) and 4-iodo-3,5-dimethyl-1-phenyl-1H-pyrazole (Ph-IDMPz) compounds were synthesized according to the methods adapted from literature with N-arylation reaction of 4-Iodo-1H-pyrazole (4-IP) or 4-iodo-3,5-dimethyl-1H-pyrazole (4-IDMPz) with phenyl boronic acid in the prences of Cu2O catalyst. N-Arylation reactions of 4-iodopyrazols with phenyl boronic acit were carried out the presence of Cu2O catalyst, at atmospheric conditions, at room temperature, in methyl alcohol and without the use of any base and ligand. In this way , the synthesis of Ph-IPz and Ph-IDMPz was carried out for the first time with Ullmann reaction under the milder conditions. Synthesized ligands Ph-IPz and Ph-IDMPz were characterized by FT-IR, NMR and GC-MS mass spectra. The NMR and FT-IR spectra of the compounds showed characteristic peaks of both the pyrazole and the phenyl group. The absence of N-H proton peaks in the 1 H-NMR spectra of the obtained Ph-IP 2 and Ph-IDMP 2 compounds indicates that the phenyl group is attached from the pyrazole NH. The shifts in the C4 carbon peaks which are determinant for 4substituted pyrazoles in the 13C-NMR spectra also confirm the structure of the compounds.","PeriodicalId":7626,"journal":{"name":"Aksaray University Journal of Science and Engineering","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80367303","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

Generating to Three Dimensional Models from Taken Photos in Vertical Position with Unmanned Aerial Vehicles: Aksaray University Campus Mosque 用无人机从垂直位置拍摄的照片生成三维模型:Aksaray大学校园清真寺

Aksaray University Journal of Science and Engineering Pub Date : 2018-12-30 DOI: 10.29002/asujse.387797

H. M. Yılmaz, Ali Abdulwahed Mahmod

{"title":"Generating to Three Dimensional Models from Taken Photos in Vertical Position with Unmanned Aerial Vehicles: Aksaray University Campus Mosque","authors":"H. M. Yılmaz, Ali Abdulwahed Mahmod","doi":"10.29002/asujse.387797","DOIUrl":"https://doi.org/10.29002/asujse.387797","url":null,"abstract":"Unmanned aerial vehicles (UAVs) applications included archaeology, construction engineering, agricultural catchment and forestry. Unmanned aerial vehicle UAVs (Rotary or fixed wing), capable of performing the photogrammetric data acquisition with amateur or digital cameras, can fly in manual, semi-automated and autonomous techniques. Following a typical photogrammetric workflow, three dimensional results like Digital Surface Models or Digital Terrain Models (DSM/DTM), contours, textured 3D models, vector information, etc. can be produced, even on large areas. In this study, a three dimensional model of the campus mosque of Aksaray University was formed with the vertical photos of UAV. Two different resolution cameras at 50 and 100 m altitude were obtained with 80% and 60% overlap rates for both altitudes. Using the PhotoScan software, a four-faced three-dimensional model of the mosque was created. 3D model generated for both data in lowest and medium accuracy for two different areas, and then total errors for all assessments were compared to know which altitude is the best to generating 3D model, problems in the model were discussed and the edges and elevations measured by the geodesic model were compared with those measured by the obtained model. The difference was found to vary between 2-50 cm after the comparison. The average error of the flight was found to be 4.85 cm for 50 m flight height and 5.16 cm for 100 m flight height. Because the Unmanned Aerial Vehicle used cannot take an oblique picture, the Mosque could not be fully modelled. The three-dimensional modelling gaps have been tried supplied with pictures taken from the ground. In the case of unmanned aerial vehicles, it is seen that three dimensional models can be made with appropriate accuracy in case that such structures are suitable picture taking.","PeriodicalId":7626,"journal":{"name":"Aksaray University Journal of Science and Engineering","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79861333","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: 1

New exact solution for (2+1) and (3+1) dimensional nonlinear partial differential equations 新的(2+1)和(3+1)维非线性偏微分方程的精确解

Aksaray University Journal of Science and Engineering Pub Date : 2018-12-29 DOI: 10.29002/ASUJSE.422554

Ozkan Guner

引用次数: 2

Characterisation and Performance of Low-Density Poly Ethylene-Corn Flour Composites 低密度聚乙烯-玉米粉复合材料的表征与性能

Aksaray University Journal of Science and Engineering Pub Date : 2018-12-29 DOI: 10.29002/ASUJSE.432715

S. Awad, E. Khalaf

引用次数: 3

The Electronic, Optical and Lattice Dynamical Properties of YIr2X2 (X=Si, Ge) Polymorphs: A DFT Study YIr2X2 (X=Si, Ge)多晶的电子、光学和晶格动力学性质:DFT研究

Aksaray University Journal of Science and Engineering Pub Date : 2018-12-29 DOI: 10.29002/asujse.451444

A. Biçer, G. Surucu

引用次数: 0

Energy and Metric Gauging in the Covariant Theory of Gravitation 万有引力协变理论中的能量和公制测量

Aksaray University Journal of Science and Engineering Pub Date : 2018-12-01 DOI: 10.29002/ASUJSE.433947

Sergey G. Fedosin

引用次数: 3

Optimization of Combined Ozone/Fenton Process on Olive Mill Wastewater Treatment 臭氧/Fenton联合工艺处理橄榄厂废水的优化研究

Aksaray University Journal of Science and Engineering Pub Date : 2018-06-30 DOI: 10.29002/asujse.336035

Asli Kirmaci, A. Duyar, V. Akgul, Dilek Akman, Kevser Cirik

{"title":"Optimization of Combined Ozone/Fenton Process on Olive Mill Wastewater Treatment","authors":"Asli Kirmaci, A. Duyar, V. Akgul, Dilek Akman, Kevser Cirik","doi":"10.29002/asujse.336035","DOIUrl":"https://doi.org/10.29002/asujse.336035","url":null,"abstract":"The aim of this study was to investigate the applicability of Fenton process and combined ozone/Fenton process to remove color, soluble chemical oxygen demand (COD s ), phenol, and dissolved organic carbon (DOC) from real olive mill wastewater (OMW). The treatability of OMW was investigated in three different study parts. Initially, Fenton process was optimized under varying H 2 O 2 /Fe 2+ molar ratios ranging between 10 and 20 at the constant H 2 O 2 concentration of 0.5 mM. The H 2 O 2 /Fe 2+ molar ratio of 10 was found optimum providing high color (51.6 %), COD s (58%), DOC (27.9%) and phenol removals (93.9%). Further, combined ozone/Fenton process was applied under gradually increasing dosages of Fe 2+ and H 2 O 2 reagents at constant H 2 O 2 /Fe 2+ molar ratio of 10. The high color removal efficiency ( 51.6% color removal for Pt-Co) was obtained at the H 2 O 2 and Fe 2+ molar ratio of 0.5/0.05. Additionally, COD s , color, DOC and phenol removal efficiencies improved at increasing reagents concentrations. However, the color removal efficiency was adversely affected while no significant difference on COD s and phenol removal was observed at higher concentrations of molar concentrations above 0.5/0.05. Additionally, the results indicated that combined process enhanced treatment performance of OMW by 21%, 49% and 22% in terms of color, DOC and COD s removals, respectively, compared to only-Fenton process. In the rest of this study, combined ozone/Fenton process was optimized under varying ozonation time (60-120 min) at the optimum H 2 O 2 and Fe 2+ molar dosage of 0.5/0.05 obtained from previous parts. Ozonation time significantly affected the treatment performance, and optimum the reaction time was determined as 90 minute in terms of the high treatment productivity and low operating cost resulted from minimum ozone consumption and short reaction time.","PeriodicalId":7626,"journal":{"name":"Aksaray University Journal of Science and Engineering","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85320260","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: 4

Investigation of High Temperature Effects on Concrete Additive Antifreeze 高温对混凝土添加剂防冻液影响的研究

Aksaray University Journal of Science and Engineering Pub Date : 2018-06-30 DOI: 10.29002/ASUJSE.319487

Ilknur Kara, M. Arslan

引用次数: 3

Dynamic Analyses and Seismic Behavior of Masonry Minarets with single Balcony 单阳台砌体尖塔动力分析及抗震性能

Aksaray University Journal of Science and Engineering Pub Date : 2018-06-30 DOI: 10.29002/asujse.371344

A. Ural, Tulin Celik

引用次数: 5

Geological, Petrographical and Geochemical Properties of Pyroclastic Rocks in the Civanadag Region (Gugu-Balikesir), NW Turkey 土耳其西北部Gugu-Balikesir Civanadag地区火山碎屑岩的地质、岩石学和地球化学特征

Aksaray University Journal of Science and Engineering Pub Date : 2018-06-30 DOI: 10.29002/asujse.331754

M. Kalkan, Y. Özpinar

引用次数: 1