Bilge International Journal of Science and Technology Research最新文献

The Experimental Analysis Of The Effect Of Geotextile Reinforcement Of Cohesive Soil On The Settlement And Bearing Capacity 土工织物加固粘性土对沉降和承载力影响的实验分析

Bilge International Journal of Science and Technology Research Pub Date : 2023-11-21 DOI: 10.30516/bilgesci.1357510

Münire Findik

{"title":"The Experimental Analysis Of The Effect Of Geotextile Reinforcement Of Cohesive Soil On The Settlement And Bearing Capacity","authors":"Münire Findik","doi":"10.30516/bilgesci.1357510","DOIUrl":"https://doi.org/10.30516/bilgesci.1357510","url":null,"abstract":"The properties of the soils in terms of engineering must be identified for the design of buildings and foundations to be constructed in areas where soft clay or loose sand ground conditions predominate. The engineering properties of different soils diversify in a broad range based on the sort of the ground in addition to the terrain conditions like the degree of compaction, water content, consolidation pressure, loading, and drainage conditions. Grounds may not perpetually hold the desired properties. Thanks to the structures to be built on the grounds, excessive settlements or collapses can happen because of inadequate ground bearing capacity. In order to reinforce the weaknesses of the soils, either the application of a deep foundation should be employed, or a proper improvement method should be applied to the foundation ground.In the study, the effect of the reinforcement of the geotextile, which has become widespread, on the clay ground was examined. Experiments have been conducted to identify the index properties, settlement, and sliding resistance parameters of soils on Süleyman Demirel University Soil Mechanics Laboratory on clay samples from the provinces of İzmir and İstanbul. Following the identification of the settlement and sliding values, the geotextile was added, and its effect on the settlement and bearing strength values was analyzed. Experiments were conducted by placing single-layered and double-layered geotextile in the samples with the values of optimum water content, the water content 10% more than the optimum value, and the water content 10% less than the optimum value.The results achieved after laboratory experiments are displayed with graphics and compared with each other.","PeriodicalId":133012,"journal":{"name":"Bilge International Journal of Science and Technology Research","volume":"4 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139251766","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

Effective Dye Adsorption with Cross-linked Hexagonal Boron Nitride Spheres 交联六方氮化硼球对染料的有效吸附

Bilge International Journal of Science and Technology Research Pub Date : 2023-04-24 DOI: 10.30516/bilgesci.1261182

Sahra Dandil, Abdullah Düzgün

{"title":"Effective Dye Adsorption with Cross-linked Hexagonal Boron Nitride Spheres","authors":"Sahra Dandil, Abdullah Düzgün","doi":"10.30516/bilgesci.1261182","DOIUrl":"https://doi.org/10.30516/bilgesci.1261182","url":null,"abstract":"In this study, cross-linked spheres (CS) were synthesized with chitosan and hexagonal boron nitride (h-BN) to be used in Reactive Blue 3R (RB3R) and Red P4BN (RP4BN) dye adsorption from wastewater. Surface characteristics of the CS were investigated by Scanning Electron Microscopy (SEM) with Energy Dispersive X-ray (EDX) analysis. The behavior of the adsorption processes with varying effective parameters were investigated. The highest removals were obtained at pH 3 for the RB3R and RP4BN removal processes as 62.8 and 74.2%, respectively. The equilibrium time of the processes was determined as 150 min. The pseudo-first-order kinetic model best explained the adsorption rates of the processes. The Freundlich isotherm model was fitted to define the adsorption mechanisms for both dyes. The positive ΔH values obtained as 24.27 and 16.59 kJ mol−1 for the RB3R and RP4BN adsorption processes, respectively, showed that the processes were endothermic. For the RB3R and RP4BN dye removal processes, ΔS values were calculated as 93.38 and 72.23 J mol−1K−1, respectively. Positive ΔS value indicates the processes that occur with an increase in disorder at the interface. The results described that the CS can be used in the adsorption of RB3R and RP4BN dyes from wastewater.","PeriodicalId":133012,"journal":{"name":"Bilge International Journal of Science and Technology Research","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128712127","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

Antibacterial activity of the vapor phase of Thymus mastichina essential oil 乳香精油气相抗菌活性研究

Bilge International Journal of Science and Technology Research Pub Date : 2023-03-22 DOI: 10.30516/bilgesci.1208083

Lucia Galovičová, Natália Čmiková, V. Valková, M. Kačániová

{"title":"Antibacterial activity of the vapor phase of Thymus mastichina essential oil","authors":"Lucia Galovičová, Natália Čmiková, V. Valková, M. Kačániová","doi":"10.30516/bilgesci.1208083","DOIUrl":"https://doi.org/10.30516/bilgesci.1208083","url":null,"abstract":"Essential oils have a diverse spectrum of biological activities, they are also low-toxic, and easily degradable in the human body. These properties make them suitable candidates for the protection and shelf-life extension of agricultural products. The aim of our study was to evaluate the efficacy of the vapor phase of Thymus mastichina essential oil against microorganisms on model fruit and vegetable crops. To compare the efficacy of vapor phase essential oil with contact application using the disc diffusion method against the tested microorganisms. Based on the methods we used, we concluded that Thymus mastichina essential has higher efficacy in a vapor application. For most of the tested microorganisms and on all the tested crops, the most significant inhibition was detected at the lowest tested concentration of 62.5 µL/L. Only moderate antimicrobial activity was detected in contact application and lower efficacy compared to antibiotics. These findings suggest that in the future Thymus mastichina essential oil could find application in crop storage to prevent crop deterioration due to microbial pathogens. Due to the need for low concentrations, it is assumed that the sensory properties of the crop for the consumer will not be affected. The replacement of synthetic fungicides and bactericides with natural alternatives could have a positive impact on the environment.","PeriodicalId":133012,"journal":{"name":"Bilge International Journal of Science and Technology Research","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134091332","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

Antifungal Efficacy of Mint Essential Oil Against Penicillium spp. Inoculated on Carrots 薄荷精油对胡萝卜接种青霉菌的抑菌效果研究

Bilge International Journal of Science and Technology Research Pub Date : 2023-03-14 DOI: 10.30516/bilgesci.1206873

V. Valková, H. Ďúranová, Lucia Galovičová, N. Vukovic, Milena D. Vukić, M. Kačániová

{"title":"Antifungal Efficacy of Mint Essential Oil Against Penicillium spp. Inoculated on Carrots","authors":"V. Valková, H. Ďúranová, Lucia Galovičová, N. Vukovic, Milena D. Vukić, M. Kačániová","doi":"10.30516/bilgesci.1206873","DOIUrl":"https://doi.org/10.30516/bilgesci.1206873","url":null,"abstract":"Current research aims to investigate the chemical composition, antioxidant, and in vitro and in situ antifungal activities of commercially available Mentha arvensis essential oil (mint, MEO). The identification of the volatile substances was done using Gas chromatography–Mass spectrometry (GC-MS) analysis. A total of 42 components representing 99.5% of the total oil were identified. The main compounds in the oil were menthol (37.3%), menthone (17.4%), neo-menthol (14.1%), and 1,8-cineole (4.9%). Antioxidant assays (1,1-diphenyl-2-picrylhydrazyl radical) demonstrate only weak activity for the MEO in values 195.00 ± 5.30 μg TEAC.mL-1, with 22.8 ± 1.2% free radical-scavenging inhibition. Evaluation of in vitro and in situ antifungal activities of MEO (in four concentrations: 62.5 µL/L, 125 µL/L, 250 µL/L, and 250 µL/L) against three strains of Penicillium (P.) spp. fungi strains (P. expansum, P. citrinum, P. crustosum) were assessed by disc diffusion method and vapor contact method on the carrot as model food, respectively. The suitability of carrots as a substrate for analyzes was verified by determining moisture content (MC) and water activity (aw), which showed values of 82.80 ± 2.33% and 0.959 ± 0.001, respectively. MEO exhibited promising antifungal activity against analyzed strains of test fungi as a diameter of zones of inhibition (from 2.88 ± 0.55 to 12.33 ± 1.14 mm), as well as the effectiveness of this oil was detected on the carrot model (from -5.41 ± 7.35 to 100.00 ± 0.00%). Moreover, it can be concluded that the growth inhibition of fungi strains significantly depends (P < 0.05) on the concentration of the MEO used in both procedures. Our results suggest that MEO, as a promising natural antifungal agent, can be applied in the innovative packaging of food products including carrots.","PeriodicalId":133012,"journal":{"name":"Bilge International Journal of Science and Technology Research","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114938878","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

The use of an artificial neural network for predicting the machining characterizing of wood materials densified by compressing 利用人工神经网络对压缩密实木质材料的加工特性进行了预测

Bilge International Journal of Science and Technology Research Pub Date : 2023-03-14 DOI: 10.30516/bilgesci.1240583

M. Tosun, S. Sofuoglu

{"title":"The use of an artificial neural network for predicting the machining characterizing of wood materials densified by compressing","authors":"M. Tosun, S. Sofuoglu","doi":"10.30516/bilgesci.1240583","DOIUrl":"https://doi.org/10.30516/bilgesci.1240583","url":null,"abstract":"In this study, an approach for artificial neural network (ANN) was presented to predict and control arithmetical mean surface roughness value (Ra), machining properties of wood materials densified by compressing in a computer numerical control (CNC) machine. Black poplar (Populus nigra L.) tree species were used as the experimental material. After specimens were densified by Thermo-Mechanical (TM) method at 0%, 20%, and 40% ratios, machining process of specimens were performed at 1000, 1500, and 2000 mm/min feed speeds and in 12000, 15000, 18000 rpm rotation speed on a CNC vertical wood machining center by using two different cutters. Data used for the training and testing of an ANN. Cutter type, compression ratio, feed rate, and spindle speed were selected as Four parameters. While hidden layer of the Ra model has ten neurons, one hidden layer was used, Compression ratio is the most significant parameter, followed by feed speed for Ra values. surface roughness increases with increased feed rate. Ra values in training, validation, and testing the data set for Ra were 0.97122, 0.8538, and 0.76685, respectively. The Mean Square Error (MSE) value was determined as 0.0019914 test of the network. The proposed ANN model came to agreement with the measured values in predicting surface roughness Ra values of MAPE. The MAPE value was calculated as 6.61, which can be considered a very good prediction (MAPE< 10 % = very good prediction). The study showed that obtained ANN prediction model is a practical and efficient tool to model the Ra of wood. For reducing energy, time and cost in the wood industry (densification and CNC wood machining), current research results can be implemented.","PeriodicalId":133012,"journal":{"name":"Bilge International Journal of Science and Technology Research","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128569298","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

Characteristics Of Some Warm Climate Grass Plants Commonly Used In Green Field Plant 常见于绿地植物的几种暖气候禾本科植物的特性

Bilge International Journal of Science and Technology Research Pub Date : 2023-03-10 DOI: 10.30516/bilgesci.1203138

S. Birer

引用次数: 0

Evaluation of the Warehouse Location Alternatives for Possible Great Istanbul Earthquake 伊斯坦布尔可能发生大地震时仓库选址方案的评价

Bilge International Journal of Science and Technology Research Pub Date : 2023-03-06 DOI: 10.30516/bilgesci.1227329

Asli Gul Yalci̇ndag, M. Dursun, Nazli Goker

引用次数: 0

Antifungal Activities of Essential Oil Obtained from Mentha Spicata var. Crispa against Selected Penicillium Species 薄荷精油对特定青霉菌的抑菌活性研究

Bilge International Journal of Science and Technology Research Pub Date : 2023-03-06 DOI: 10.30516/bilgesci.1208483

H. Ďúranová, V. Valková, Lucia Galovičová, N. Vukovic, Milena D. Vukić, M. Kačániová

{"title":"Antifungal Activities of Essential Oil Obtained from Mentha Spicata var. Crispa against Selected Penicillium Species","authors":"H. Ďúranová, V. Valková, Lucia Galovičová, N. Vukovic, Milena D. Vukić, M. Kačániová","doi":"10.30516/bilgesci.1208483","DOIUrl":"https://doi.org/10.30516/bilgesci.1208483","url":null,"abstract":"Attention of the scientific community has still focused on application of essential oils (EOs) as natural antifungal agents in the food industry to prolong the shelf-life of food products. In this regard, the current study was designed to evaluate chemical composition, antioxidant capacity, and antifungal (in vitro, in situ) activities of spearmint (Mentha spicata var. crispa) essential oil (SEO) commercially obtained from Slovak company against selected Penicillium species. The EO was used in four concentrations (62.5, 125, 250, and 500 µL/L) chosen, and gas chromatography–mass spectrometry, DPPH, agar disc diffusion and vapor phase methods were employed for such analyses. Our results revealed carvone (57.5%) and α-limonene (17.6%) to be the principal constituents in the EO chemical composition. Although only a weak antioxidant capacity (20.40 ± 0.80% free radical-scavenging inhibition) was displayed by the SEO, the highest EO concentration (500 µL/L) was shown to be a moderate growth inhibitor of P. expansum (inhibition zone of 11.46 ± 0.63 mm) and P. crustosum (inhibition zones of 12.93 ± 0.46 mm). The growth of P. citrinum was only weakly inhibited by the SEO (≥ 250 µL/L). Most importantly, the ability of the SEO to inhibit the mycelial growth of three Penicillium spp. tested was pronounced (P < 0.05) for all applied concentrations. Accordingly, the results from the current study complement our previous ones dealing with the possibility of utilizing diverse EOs commercially achieved from the same company in the food sector.","PeriodicalId":133012,"journal":{"name":"Bilge International Journal of Science and Technology Research","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132969820","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

POST-PANDEMIC SPATIAL DECISIONS WITH UNIVERSITY STUDENTS’ AWARENESS OF COVID-19 MEASURES IN THE BUILT ENVIRONMENT 基于大学生对建筑环境中COVID-19措施意识的大流行后空间决策

Bilge International Journal of Science and Technology Research Pub Date : 2023-03-01 DOI: 10.30516/bilgesci.1230363

Tuğçe Pekdoğan, Mina Aslan

{"title":"POST-PANDEMIC SPATIAL DECISIONS WITH UNIVERSITY STUDENTS’ AWARENESS OF COVID-19 MEASURES IN THE BUILT ENVIRONMENT","authors":"Tuğçe Pekdoğan, Mina Aslan","doi":"10.30516/bilgesci.1230363","DOIUrl":"https://doi.org/10.30516/bilgesci.1230363","url":null,"abstract":"Background: Pandemic coordination boards, science boards, and operation centers were established worldwide to prevent the pandemic’s spread. These centers have published guidelines, posters, and brochures for public transportation places such as COVID-19 Risk Assessment, Guide, hospitals, workplaces, and public transportation to inform the communities. However, studies have not been conducted on how much these measures are applied in real life and how much people are conscious. \u0000 \u0000Aims: In this study, the student’s awareness of COVID-19 precautions will be evaluated through the WELL criteria by examining the guide titled “Strategies from the WELL Building Standard to support the fight against COVID-19”. \u0000Methods: The survey questions were applied to 100 university students from different cities and departments in Turkiye to collect the research data. The data obtained from the questionnaires were applied to the study’s sample group and were coded over the questionnaire results via SPSS statistical program. \u0000 \u0000Results: It is seen that only 45% of students have information about “water quality,” and only half of the students do sports during the pandemic period. In this period, 77 students declared that they paid attention to the issue of nutrition. 53 out of 100 students experienced sleep disorders. Moreover, according to the survey results, 52 students received psychological support. \u0000 \u0000Conclusion: The WELL standard, using closed areas and creating awareness of COVID-19, is an important solution for the built environment against worldwide pandemics. Users’ behaviors and spatial requirements of the built environment will contribute to developing project ideas for designers, architects, and engineers.","PeriodicalId":133012,"journal":{"name":"Bilge International Journal of Science and Technology Research","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114313344","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

Characterization Of Soil For Road Shoulders Mixed With Reclaimed Asphalt Pavement Waste 再生沥青路面废弃物混合道路肩土的特性研究

Bilge International Journal of Science and Technology Research Pub Date : 2023-02-28 DOI: 10.30516/bilgesci.1218789

Saber Shah Saberi, A. Mohamed

{"title":"Characterization Of Soil For Road Shoulders Mixed With Reclaimed Asphalt Pavement Waste","authors":"Saber Shah Saberi, A. Mohamed","doi":"10.30516/bilgesci.1218789","DOIUrl":"https://doi.org/10.30516/bilgesci.1218789","url":null,"abstract":"The use of recovered asphalt pavement can reduce the amount of new bitumen and aggregates used in pavement construction and rehabilitation (RAP). RAP is a waste product that results from the removal of an old or damaged pavement surface. Although it has been used since the 1970s, and numerous recommendations for using RAP in the new mixture have been made, there are only a few research available. Because the materials used are recycled, it is also cost-effective and environmentally friendly. The purpose of this study is to characterize soil that has been blended with reclaimed asphalt pavement (RAP) for use on the local road shoulder. RAP is one of the rehabilitation procedures used to repair a deteriorated surface by removing the upper pavement and replacing it with new pavement. According to earlier study, mixing dirt with different materials improves the finding. The goals of this study are to establish the material qualities of soil and RAP, determine the optimum moisture content of material and degree of compaction for road shoulders, and determine the appropriate mix proportion of soil and RAP for road shoulders using the California Bearing Ratio (CBR) test. The Atterberg limit, liquid limit, and plastic limit for soil were evaluated on a sample of soil and RAP. For soil and RAP, a sieve analysis was performed. Compaction tests for soil and RAP were carried out with a mixture of 10S, 2S8RAP, 4S6RAP, 6S4RAP, 8S2RAP, and 10RAP, as well as CBR tests for soil and RAP. . According to the results of the laboratory test, 20% of RAP (8S2RAP) had a better-mixed proportion for the road shoulder. As a result, repurposed materials like RAP can be used as road shoulder material. \u0000Keywords: reclaimed asphalt, reuse of Asphalt,","PeriodicalId":133012,"journal":{"name":"Bilge International Journal of Science and Technology Research","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117156539","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