Sakarya University Journal of Science最新文献_第4页

Examination of Winter Tourism Accommodation Building Form in Term of Compactity: the Example of Türkiye 从紧凑性角度考察冬季旅游住宿建筑形式——以天津为例

Sakarya University Journal of Science Pub Date : 2023-07-13 DOI: 10.16984/saufenbilder.1253136

Özlem Kahraman, Erdem Köymen

{"title":"Examination of Winter Tourism Accommodation Building Form in Term of Compactity: the Example of Türkiye","authors":"Özlem Kahraman, Erdem Köymen","doi":"10.16984/saufenbilder.1253136","DOIUrl":"https://doi.org/10.16984/saufenbilder.1253136","url":null,"abstract":"Energy is an effective factor that needs to be solved for efficiency in architecture, as in many other fields. For this reason, planned and strategic steps should be taken from the early stage of the building production process in terms of the effective use of energy. The form that the building will take varies according to the climatic characteristics. Therefore, the building should be designed with attention to environmental factors.. “Compactness”, which is a geometrical sub-concept of the building form, is one of the most important factors in terms of heat loss and gain of the building. The concept of compactness, which is related to all of the above contexts, constitutes the main motivation of this research. In the study, the extent to which the theoretical knowledge of compactness is applied in the practice of the formation of winter tourism accommodation structures and the differences in the formation of the buildings according to the regions that occur as a result of this was investigated. In this study, cold climate zone structures were preferred because they present a restrictive plane where compactness is more comparable in terms of form. In the study, 50 accommodation structures in different regions of Türkiye, which are the most preferred in terms of winter tourism, were evaluated with an original approach based on compactness. The data of the selected structures were transferred to a table, and compactness ratios were obtained by superposing the original and compact plan projections. As a result, it was seen that increasing the surface area in accommodation structures with relatively small floor areas greatly affects the compactness ratio, there is a linear ratio between the increase in the floor area and the number of floors, and there is no specialized building form and main facade direction for any region.","PeriodicalId":21468,"journal":{"name":"Sakarya University Journal of Science","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89951482","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

Topology Optimization of Spinal Cage Designs for Improved Stress Distribution and Bone Graft Window 拓扑优化脊柱支架设计，改善应力分布和骨移植窗口

Sakarya University Journal of Science Pub Date : 2023-07-12 DOI: 10.16984/saufenbilder.1295714

M. Eryildiz

引用次数: 0

Astrophysical Parameters of the Open Cluster NGC 2509 疏散星团 NGC 2509 的天体物理参数

Sakarya University Journal of Science Pub Date : 2023-07-08 DOI: 10.16984/saufenbilder.1215972

T. Yontan, Seliz Koç

引用次数: 0

Ergonomic Risk Assessment in the Forest Products Industry 林产品行业的人体工学风险评估

Sakarya University Journal of Science Pub Date : 2023-07-07 DOI: 10.16984/saufenbilder.1265076

Merve Yilmaz, Muharrem Ünver

引用次数: 0

Phytochemical Components, Antioxidant, Antibacterial, and Synergistic Effects of Endemic Sideritis trojana Extract in Combination with Antibiotics on Human Pathogens 地方性蛛网膜虫提取物的植物化学成分、抗氧化性、抗菌性以及与抗生素联合使用对人类病原体的协同作用

Sakarya University Journal of Science Pub Date : 2023-07-06 DOI: 10.16984/saufenbilder.1261904

Mehzat Altun

{"title":"Phytochemical Components, Antioxidant, Antibacterial, and Synergistic Effects of Endemic Sideritis trojana Extract in Combination with Antibiotics on Human Pathogens","authors":"Mehzat Altun","doi":"10.16984/saufenbilder.1261904","DOIUrl":"https://doi.org/10.16984/saufenbilder.1261904","url":null,"abstract":"In recent years, dramatically rising multidrug-resistant bacteria (MDR) and side effects of antibiotics lead ethnopharmacology to discover novel antimicrobials derived from plants for bacterial infections. Traditionally, decoction or infusion of the species of Sideritis has been used for the treatment of diseases such as cough, stomach, gastrointestinal, and kidney disorders. In this study, we aimed to investigate the antioxidant and antibacterial activity of the ethanolic extract of Sideritis trojana (S.trojana) and its synergistic potential with antibiotics against human pathogens. Gas chromatography-mass spectrometry (GC-MS), Folin- Ciocalteu, 1-diphenyl-2-picrylhydrazyl radical (DPPH), disc diffusion, and minimum inhibitory concentration (MIC) assays were used for identifying phytochemicals, total phenolic content (TPC), antioxidant, and antibacterial activity of ethanolic extract of S.trojana alone and binary combination with selected antibiotics against Gram-positive and Gram-negative bacterial strains, respectively. Furthermore, the combined effects of the extract with classical antibiotics were evaluated by measuring the inhibition zone diameter (IZD). The S.trojana extract showed moderate antibacterial activity with the MIC ranging between 15.625 to 500 µg/mL against human pathogens and the synergistic effect was detected in a dual combination of extract and antibiotics. The extract exhibited high antioxidant activity with a low IC50 value (0.138±0.010 mg/mL). The TPC value was 47.95±0.24 (mg GAE/g extract). After measurements of cytotoxicity were performed, S.trojana can be used alone or combined with antibiotics as an alternative therapy to eliminate pathogens and can be preferred as an antioxidant agent in the pharmaceutical industry.","PeriodicalId":21468,"journal":{"name":"Sakarya University Journal of Science","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139362437","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

A Research on Architects’ Comfort Conditions in Working Enviroments 建筑师工作环境舒适度研究

Sakarya University Journal of Science Pub Date : 2023-07-04 DOI: 10.16984/saufenbilder.1278990

Yiğit Can Yardimci

{"title":"A Research on Architects’ Comfort Conditions in Working Enviroments","authors":"Yiğit Can Yardimci","doi":"10.16984/saufenbilder.1278990","DOIUrl":"https://doi.org/10.16984/saufenbilder.1278990","url":null,"abstract":"Architects have difficult working conditions due to the profession of architecture and they stay in the working environment during intensive working hours. For this reason, it is important to improve the comfort conditions in the working environment for architects to feel physically and psychologically better. The aim of this study is to evaluate the comfort conditions in the working environment of architects working in Bursa. In this direction, 203 architects were reached and a questionnaire was used as a data collection tool. The questionnaire consists of 2 stages. The first phase includes demographic characteristics and the second phases includes questions about comfort conditions. When the comfort conditions of the architects were examined; it was seen that they were satisfied with the sub-factors of artificial lighting, indoor temperature and natural ventilation adequacy, indoor air quality, absence of bad odors in the working environment, seat ergonomics, equipment adequacy. However, they feel uncomfortable about the auditory conditions in the working environment. When the correlation between demographic characteristics and comfort conditions in the working environment is examined, the correlation coefficients are in the range of 0-0.20, indicating that demographic characteristics have a very weak or no relationship with comfort conditions in the working environment.","PeriodicalId":21468,"journal":{"name":"Sakarya University Journal of Science","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80744390","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

Development of an Analytical Method for the Determination of Cymoxanil in Potato Flour Samples by High Performance Liquid Chromatography 利用高效液相色谱法开发测定马铃薯粉样品中霜霉威的分析方法

Sakarya University Journal of Science Pub Date : 2023-07-03 DOI: 10.16984/saufenbilder.1265507

Tuğçe UNUTKAN GÖSTERİŞLİ

引用次数: 0

Phytochemicals and Antioxidant Activities in methanol extracts of Endemic Haplophyllum Species from Türkiye 新疆特有单叶植物甲醇提取物的化学成分及抗氧化活性研究

Sakarya University Journal of Science Pub Date : 2023-06-30 DOI: 10.16984/saufenbilder.1091181

C. Yaman

{"title":"Phytochemicals and Antioxidant Activities in methanol extracts of Endemic Haplophyllum Species from Türkiye","authors":"C. Yaman","doi":"10.16984/saufenbilder.1091181","DOIUrl":"https://doi.org/10.16984/saufenbilder.1091181","url":null,"abstract":"The aim of the current study is to determine the total flavonoids, phenolics and antioxidant activities of methanol extracts from aerial parts of four endemic Haplophyllum species to Türkiye (H. myrtifolium, H. vulcanicum, H. pumiliforme, and H. sahinii). There are two populations collected from different regions belonging to H. myrtifolium and H. pumiliforme. Antioxidant activities were measured by radical scavenging activity such as the 2, 2′-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS) and 2, 2-diphenyl-1-picrylhydrazyl (DPPH), and compared with synthetic standards such as trolox, ascorbic acid and butylated hydroxytoluene (BHT). The highest total bioactive contents were recorded as H. sahinii for total phenolic content (66.4 mg GAE/g extract) and H. myrtifolium for total flavonoid content (40.8 mg QE/g extract), but H. vulcanicum displayed the lowest amount for both contents (38.0 mg GAE/g extract and 34.5 mg QE/g extract, respectively). Among the species, H. myrtifolium exhibited the strongest DPPH and ABTS radical scavenging activity followed by H. pumiliforme, H. sahinii and H. vulcanicum. All Haplophyllum species showed higher antioxidant activity for these two radical scavenging activities than trolox and BHT. The phytochemicals and antioxidant activities in methanol extracts from these endemic Haplophyllum species is reported for the first time. The diversity of the findings is to be discussed as likely consequence of the different species and regions.","PeriodicalId":21468,"journal":{"name":"Sakarya University Journal of Science","volume":"106 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87739809","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

Classification of Forest Fires in European Countries by Clustering Analysis Techniques 基于聚类分析技术的欧洲国家森林火灾分类

Sakarya University Journal of Science Pub Date : 2023-06-21 DOI: 10.16984/saufenbilder.1288073

Hakan SERİN, Muslu Kazım KÖREZ, Mehmet Emin TEKİN, Sinan SİREN

引用次数: 0

Investigating the Role of Bias Correction Methods and Climate Models on Water Budget of Büyük Menderes Basin 偏差校正方法和气候模式对b<s:1> yy<e:1> k Menderes流域水量收支的影响研究

Sakarya University Journal of Science Pub Date : 2023-06-19 DOI: 10.16984/saufenbilder.1125240

Zülküf İbrahim ERKOL, İrem DALOGLU

{"title":"Investigating the Role of Bias Correction Methods and Climate Models on Water Budget of Büyük Menderes Basin","authors":"Zülküf İbrahim ERKOL, İrem DALOGLU","doi":"10.16984/saufenbilder.1125240","DOIUrl":"https://doi.org/10.16984/saufenbilder.1125240","url":null,"abstract":"Büyük Menderes Basin is one of the largest basins in Turkey, with almost half of the basin area utilized for agricultural purposes. The amount of water allocated to the agricultural areas in the basin corresponds to 80% of water use in the watershed. Hence, the impact of climate change on the water supply in the Büyük Menderes Basin will be significant for the basin. In this study, we model the effects of climate change on the water budget (water supply and demand balance) of the Büyük Menderes Basin using the Water and Evaluation and Planning (WEAP) tool. Future precipitation, temperature, and evaporation data for the basin are attained from outputs of the HadGEM2-ES global circulation model (GCM), along with CNRM-CM5.1 and GFDL-ESM2M regional circulation models (RCM) for RCP 4.5 and RCP 8.5 scenarios. Subsequently, the study applies different statistical bias correction methods (Linear Scaling (LS), Distribution Mapping (DM), Local Precipitation Scaling (PLIS), and Power Transformation of Precipitation (PTP) for raw outputs of GCMs and RCMs and analyzes the changes in outcomes of projected climate data and the impact of changes on the hydrology of the basin using the WEAP model. For this analysis, calibrated and validated WEAP model for the 12 reservoirs of Büyük Menderes Basin is used to understand the impact of different bias correction methods on reservoir levels.","PeriodicalId":21468,"journal":{"name":"Sakarya University Journal of Science","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135421099","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