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Prediction of Damping Capacity Demand in Seismic Base Isolators via Machine Learning

Computer Modeling in Engineering & Sciences 2024年第3期138卷 2899-2924页

作者： Ayla Ocak umit Isıkdag Gebrail Bekdas Sinan Melih Nigdeli Sanghun Kim ZongWoo Geem Department of Civil Engineering Istanbul University-CerrahpasaIstanbul34320Turkey Department of Informatics Mimar Sinan Fine Arts UniversityIstanbul34427Turkey Department of Civil and Environmental Engineering Temple UniversityPhiladelphiaPA19122USA Department of Smart City Gachon UniversitySeongnam13120Korea

Base isolators used in buildings provide both a good acceleration reduction and structural vibration control *** base isolators may lose their damping capacity over time due to environmental or dynamic *** deterioration of them requires the determination of the maintenance and repair needs and is important for the long-termisolator *** this study,an artificial intelligence prediction model has been developed to determine the damage and maintenance-repair requirements of isolators as a result of environmental effects and dynamic factors over *** the developed model,the required damping capacity of the isolator structure was estimated and compared with the previously placed isolator capacity,and the decrease in the damping property was tried to be *** this purpose,a data set was created by collecting the behavior of structures with single degrees of freedom(SDOF),different stiffness,damping ratio and natural period isolated from the foundation under far fault *** data is divided into 5 different damping classes varying between 10%and 50%.Machine learning model was trained in damping classes with the data on the structure’s response to random seismic *** a result of the isolator behavior under randomly selected earthquakes,the recorded motion and structural acceleration of the structure against any seismic vibration were examined,and the decrease in the damping capacity was estimated on a class *** performance loss of the isolators,which are separated according to their damping properties,has been tried to be determined,and the reductions in the amounts to be taken into account have been determined by *** the developed prediction model,using various supervised machine learning classification algorithms,the classification algorithm providing the highest precision for the model has been *** the results are examined,it has been determined that the damping of the isolator structure with the

关键词： Vibration control base isolation machine learning damping capacity

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Impact of adjuvant treatment modalities on survival outcomes in curatively resected pancreatic and periampullary adenocarcinoma

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Chinese Journal of Cancer Research 2015年第4期27卷 408-416页

作者： Nedim Turan Mustafa Benekli olcun umit unal ?lkay Tugba Unek Didem Tastekin Faysal Dane Efnan Alg?n Sukran Ulger Tulay Eren Turkan Ozturk Topcu Esma Turkmen Nalan Akgül Babacan Gulnihal Tufan Zuhat Urakci Basak Oven Ustaalioglu Ozlem Sonmez Uysal Ozlem Balvan Ercelep Burcu Yapar Taskoylu Asude Aksoy Mustafa Canhoroz Umut Demirci Erkan Dogan Veli Berk Ozan Balakan Ahmet ?iyar Ekinci Mukremin Uysal ?brahim Petekkaya Sel?uk Cemil Ozturk ?nder Tonyal? Bülent ?etin Mehmet Naci Aldemir Kaan Helvac? Nuriye Ozdemir ?lhan Oztop Ugur Coskun Aytug Uner Ahmet Ozet Suleyman Buyukberber Department of Medical Oncology Faculty of Medicine Cumhuriyet University Department of Medical Oncology Faculty of Medicine Gazi University Department of Medical Oncology Faculty of Medicine Dokuz Eylul University Department of Medical Oncology Faculty of Medicine Necmettin Erbakan University Department of Medical Oncology Faculty of Medicine Marmara University Department of Radiation Oncology Faculty of Medicine Gazi University Department of Medical Oncology Numune Education and Research Hospital Department of Medical Oncology Faculty of Medicine Karadeniz Technical University Department of Medical Oncology Faculty of Medicine Trakya University Department of Medical Oncology Rize Education and Research Hospital Department of Medical Oncology Faculty of Medicine Dicle University Department of Medical Oncology Dr.Lutfi Kirdar Kartal Education and Research Hospital Department of Medical Oncology Sakarya Education and Research Hospital Department of Medical Oncology Faculty of Medicine Pamukkale University Department of Medical Oncology Faculty of Medicine Inonu University Department of Medical Oncology Faculty of Medicine Firat University Department of Medical Oncology Dr.Abdurrahman Yurtaslan Education and Research Hospital Department of Medical Oncology Faculty of Medicine Yuzuncu Yil University Department of Medical Oncology Faculty of Medicine Erciyes University Department of Medical Oncology Faculty of Medicine Sutcu Imam University Department of Medical Oncology Diyarbakir Education and Research Hospital Department of Medical Oncology Faculty of Medicine Kocatepe University Department of Medical Oncology Dr.Ersin Arslan State Hospital Department of Medical Oncology Education and Research Hospital Ad?yaman University Department of Medical Oncology Faculty of Medicine Mustafa Kemal University Department of Medical Oncology Faculty of Medicine Ataturk University

Background： We examined the impact of adjuvant modalities on resected pancreatic and periampullary adenocarcinoma（PAC）.Methods： A total of 563 patients who were curatively resected for PAC were retrospectively analyzed between 2003 and ***： Of 563 patients, 472 received adjuvant chemotherapy（CT） alone, chemoradiotherapy（CRT） alone, and chemoradiotherapy plus chemotherapy（CRT-CT） were analyzed. Of the 472 patients, 231 were given CRT-CT, 26 were given CRT, and 215 were given CT. The median recurrence-free survival（RFS） and overall survival（OS） were 12 and 19 months, respectively. When CT and CRT-CT groups were compared, there was no significant difference with respect to both RFS and OS, and also there was no difference in RFS and OS among CRT-CT, CT and CRT groups. To further investigate the impact of radiation on subgroups, patients were stratified according to lymph node status and resection margins. In node-positive patients, both RFS and OS were significantly longer in CRT-CT than CT. In contrast, there was no significant differencebetween groups when patients with node-negative disease or patients with or without positive surgical margins were ***： Addition of radiation to CT has a survival benefit in patients with node-positive disease following pancreatic resection.

关键词： Pancreatic adenocarcinoma adjuvant chemotherapy(adjuvant CT) adjuvant radiotherapy

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Ensemble for evaluating diagnostic efficacy of non-invasive indices in predicting liver fibrosis in untreated hepatitis C virus population

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World Journal of Methodology 2024年第3期14卷 90-105页

作者： Navneet Kaur Gitanjali Goyal Ravinder Garg Chaitanya Tapasvi umit Demirbaga Department of Biochemistry Guru Gobind Singh Medical College and HospitalFaridkot 151203PunjabIndia Department of Biochemistry All India Institute of Medical SciencesBathinda 151005PunjabIndia Department of Medicine Guru Gobind Singh Medical College and HospitalBaba Farid University of Health SciencesFaridkot 151203PunjabIndia Department of Radiodiagnosis Guru Gobind Singh Medical College and HospitalBaba Farid University of Health SciencesFaridkot 151203India Department of Computer Engineering Bartin UniversityBartin 74100Türkiye Department of Medicine University of CambridgeCambridge CB20QQUnited Kingdom European Bioinformatics Institute Wellcome GenomeCambridge CB101SDUnited Kingdom

BACKGROUND Hepatitis C virus(HCV)infection progresses through various phases,starting with inflammation and ending with hepatocellular *** are several invasive and non-invasive methods to diagnose chronic HCV *** invasive methods have their benefits but are linked to morbidity and ***,it is important to analyze the potential of non-invasive methods as an *** wave elastography(SWE)is a non-invasive imaging tool widely validated in clinical and research studies as a surrogate marker of liver *** fibrosis determination by invasive liver biopsy and non-invasive SWE agree closely in clinical studies and therefore both are gold *** To analyzed the diagnostic efficacy of non-invasive indices[serum fibronectin,aspartate aminotransferase to platelet ratio index(APRI),alanine aminotransferase ratio(AAR),and fibrosis-4(FIB-4)]in relation to *** have used an Artificial Intelligence method to predict the severity of liver fibrosis and uncover the complex relationship between non-invasive indices and fibrosis *** We have conducted a hospital-based study considering 100 untreated patients detected as HCV positive using a quantitative Real-Time Polymerase Chain Reaction *** performed statistical and probabilistic analyses to determine the relationship between non-invasive indices and the severity of *** also used standard diagnostic methods to measure the diagnostic accuracy for all the *** The results of our study showed that fibronectin is a highly accurate diagnostic tool for predicting fibrosis stages(mild,moderate,and severe).This was based on its sensitivity(100%,92.2%,96.2%),specificity(96%,100%,98.6%),Youden’s index(0.960,0.922,0.948),area under receiver operating characteristic curve(0.999,0.993,0.922),and Likelihood test(LR+>10 and LR-200),AAR(>1),APRI(>3),and FIB-4(>4)were all strongl

关键词： Hepatitis C virus Non-invasive biomarkers Shear wave elastography Fibronectin Bayesian network Machine learning Liver fibrosis

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Deep neck infections mortal complications:Intrathoracic complications and necrotising fasciitis

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World Journal of Clinical Cases 2024年第30期12卷 6383-6390页

作者： Kemal Koray Bal Can Aslan Harun Gür Seda Turk Bal Recep Okan Ustun Murat unal Department of Otorhinolaryngology Mersin UniversityMersin 33160Türkiye Department of Emergency Medicine Tarsus State HospitalMersin 33460Türkiye Department of Aestetic Division of Plastic and Reconstructive SurgeryUniversity of Health Sciences Mersin City HospitalMersin 33230Türkiye

BACKGROUND We planned this study considering that complications of deep neck infections can be seriously life *** To raise awareness that introthoracic complications and necrotizing fasciitis are causes of serious mortality and *** This study was carried out with the participation of 188 patients who were treated at Mersin University Department of Otorhinolaryngology and Head and Neck Surgery at January 1,*** the patient files were retrospectively examined,16 of 188 patients(8.5%)were included in the study because they were observed to have necrotizing fasciitis and/or intrathoracic *** There were a total of 16 patients in this study,9 males(56.25%)and 7 females(43.75%).All patients were adults(>18 years)and the mean age was 50.37 years±15.37 *** patients had a mean age of 40.42 years±13.38 years,whereas for male patients was 58.11 years±12.44 *** Patients with necrotizing fasciitis and/or intrathoracic complications require more complicated and serious surgeries,intensive care unit monitoring,and mechanical ventilator *** rates of morbidity and mortality should be expected in Bal KK et *** neck infections mortal complications WJCC https://*** 6384 October 26,2024 Volume 12 Issue 30 these patients who are hospitalized for longer periods of time.

关键词： Deep neck infection Necrotising fasciitis Mediastinitis Complications Mortality

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Prognostic significance of tumor budding,desmoplastic reaction,and lymphocytic infiltration in patients with gastric adenocarcinoma

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World Journal of Gastrointestinal Pathophysiology 2024年第1期15卷 9-25页

作者： Aysen Yavuz Kubra Simsek Anil Alpsoy Busra Altunay Elif Ocak Gedik Betul unal Cumhur Ibrahim Bassorgun Ali Murat Tatli Gulsum Ozlem Elpek Department of Pathology Akdeniz University Medical SchoolAntalya 07070Türkiye Department of Medical Oncology Akdeniz University Medical SchoolAntalya 07070Türkiye

BACKGROUND Recent studies have shown that the tumor microenvironment significantly influences the behavior of solid *** this context,Accumulated data suggests that pathological evaluation of tumor budding(TB),desmoplastic reaction(DR),and tumor-infiltrating lymphocytes(TILs)may be crucial in determining tumor behavior in the gastrointestinal *** gastric adenocarcinoma(GAC),although some results suggest that TB and TILs may be effective in determining the course of the disease,the data do not ***,very few studies have investigated the relationship between DR and *** present,the associations between tumor TB,DR and TILs in GAC patients have not been *** To establish the relationships between TB,DR,and TILs in patients with GAC and to assess their influence on *** Our study group comprised 130 patients diagnosed with *** definition of TB was established based on the International TB Consensus *** DR was categorized into three groups according to the level of tumor stroma *** assessment of TILs was conducted using a semiquantitative approach,employing a cutoff value of 5%.The statistical analysis of the whole group and 100 patients with an intestinal subtype of GAC was performed using SPSS version *** A significant correlation between peritumoral budding(PTB)and intratumoral budding(ITB)was noted(r=0.943).Tumors with high PTBs and ITBs had a greater incidence of immature DRs and low TILs(P<0.01).PTB and ITB were associated with histological subtype,lymph node metastasis(LNM),and stage(P<0.01).ITB,PTB,LNM,DR,and stage were significant risk factors associated with poor *** multivariate Cox regression analysis identified ITB,PTB,and LNM as independent prognostic variables(P<0.05).In intestinal-type adenocarcinomas,a positive correlation between PTB and ITB was noted(r=0.972).While univariate analysis revealed that LNM,stage,PTB,ITB,and DR were strong parameters for pred

关键词： Gastric cancer Tumor budding Desmoplastic stroma Tumor-infiltrating lymphocytes Prognosis

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Detection of critical road roughness sections by trend analysis and investigation of driver speed interaction

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Frontiers of Structural and Civil Engineering 2022年第4期16卷 515-532页

作者： Meltem SAPLIOGLU Ayse unal Melek BOCEK Department of Civil Engineering Suleyman Demirel UniversityIsparta 32260Turkey Department of Civil Engineering Siirt UniversitySiirt 56100Turkey

Pavement roughness(IRI—International Roughness Index values)influence the stability of traffic movements both on intercity roads and urban *** study is to determine the exact locations of critical pavement roughness values that affect traffic motion stability and comfort in city centre highway *** data with 10 m intervals were collected on a 3140 m divided road containing three consecutive signalized intersections in the city centre *** data were analysed using the distance-dependent Mann-Kendall trend analysis method and checkerboard *** sections where roughness is important were determined at a 95%confidence *** results will show where future pavement improvements should be prioritized for municipalities and road maintenance engineers and will form a basis for the urban road management system.

关键词： trend analysis checkerboard model IRI driver speed

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Assessment Method of Offshore Wind Resource Based on Multi-dimenssiional Indexes System

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CSEE Journal of Power and Energy Systems 2024年第1期10卷 76-87页

作者： Xiaomei Ma Yongqian Liu Jie Yan Shuang Han Li Li Hang Meng Muhammet Deveci Konstanze Kolle umit Cali the State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources(NCEPU) School of New EnergyNorth China Electric Power UniversityBeijing 102206China School of Physical and Electronic Information Engineering Qinghai Normal UniversityXiningQinghai 810016China State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources(NCEPU) School of New EnergyNorth China Electric Power UniversityBeijing 102206China the Royal School of Mines Imperial College London.London SW72AZUKand also with Department of Industrial EngineeringTurkish Naval AcademyNational Defence University34940IstanbulTurkey Department of Energy Systems SINTEF Energy ResearchTrondheimNO-7034 Norway Department of Electric Power Engineering Norwegian University of Science and TechnologyTrondheimNO-7491 Norway

Traditional assessment indexes could not fully describe offshore wind resources,for the meteorological properties of offshore are more complex than *** a result,the uncertainty of offshore wind power projects would be increased and final economic benefits would be ***,a study on offshore wind resource assessment is carried out,including three processes of“studying data sources,conducting multidimensional indexes system and proposing an offshore wind resource assessment method based on analytic hierarchy process(AHP).First,measured wind data and two kinds of reanalysis data are used to analyze the characteristics and reliability of data ***,indexes such as effective wind speed occurrence,affluent level occurrence,coefficient of variation,neutral state occurrence have been proposed to depict availability,richness,and stability of offshore wind resources,*** with existing parameters(wind power density,dominant wind direction occurrence,water depth,distance to coast),a multidimensional indexes system has been built and on this basis,an offshore wind energy potential assessment method has been ***,the proposed method is verified by the annual energy production of five offshore wind turbines and practical operating data of four offshore wind farms in *** study also compares the ranking results of the AHP model to two multi-criteria decision making(MCDM)models including weighted aggregated sum product assessment(WASPAS)and multi-attribute ideal real comparative analysis(MAIRCA).Results show the proposed method gains well in practical engineering applications,where the economic score values have been considered based on the offshore reasonable utilization hours of the whole life cycle in China.

关键词： Annual energyproduction aatmospheric stability data sources offshore wind resource wind power density

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An Examination ofthe Impact of Game-Based Geometric Shapes Education Software Usage on the Education of Students With Intellectual Disabilities

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ECNU Review of Education 2022年第4期5卷 761-783页

作者： umit Demir Department of Computer Technologies Canakkale Onsekiz Mart UniversityCanakkale 17020Turkey

Purpose:This study aims to research the impact of the e-learning environment,in which gamebased education software was used,on the learning of students with intellectual ***/Approach/Methods:The study group consisted of 34 students with intellectual disabilities studying at a special education vocational school in Canakkale,*** this study,the true experimental method was *** 5 weeks,the experimental group received blended learning that was supported by the usage of a game-based education software designed by the researcher,which includes interactive educational game *** the same time,control group students only received the teaching process in the classroom with the traditional teaching *** attitude scale and an achievement test were used fordata ***:The analysis of the findings showed that there was a significant increase between precourse and post-course attitudes and academic achievement scores of the *** wasn't a significant difference between pre-course and post-course attitudes and academic achievement scores according to the gender and academic achievement ***'academic achievement and attitude post-test scores were higher than females'*** having upper daily mobile devices usage experience had higher post-test and academic achievement scores than students havinglowerdaily mobile devices usage experience.

关键词： Game-based education geometry education special education

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Improved population mean estimator with exponential function under non-response

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Applied Mathematics(A Journal of Chinese Universities) 2023年第4期38卷 562-580页

作者： Cerenunal Cem Kadilar Department of Statistics Hacettepe UniversityAnkara 06800Turkey

In this article,we consider a new family of exponential type estimators for estimating the unknown population mean of the study *** propose estimators taking advantage of the auxiliary variable information under the first and second non-response cases *** required theoretical comparisons are obtained and the numerical studies are *** conclusion,the results show that the proposed family of estimators is the most efficient estimator with respect to the estimators in literature under the obtained conditions for both cases.

关键词： non-response exponential estimators sub-sampling method population mean

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Effect of Putrescine on Low-Temperature Acclimation in Chlamydomonas reinhardtii

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Phyton-International Journal of Experimental Botany 2022年第3期91卷 583-598页

作者： Muslum S.Inal Dilek unal Bengu Turkyilmaz unal Munir Ozturk Molecular Biology and Genetics Department Faculty of Science and LetterBilecikŞeyh Edebali UniversityBilecik11230Turkey Biotechnology Application and Research Center BilecikŞeyh Edebali UniversityBilecik11230Turkey Biotechnology Department Art and Sciences FacultyNiğdeÖmer Halisdemir UniversityNiğde51240Turkey Botany Department Centre for Environmental StudiesEge UniversityIzmir35100Turkey

Putrescine is reported to be necessary for cold acclimation under low-temperature *** this study,the effect of low-temperature on some physiological and biochemical parameters has been investigated using the green algae Chlamydomonas *** lipid peroxidation rate,amount of Rubisco protein,activities of antioxidant enzymes and gene expression of polyamine biosynthesis(odc2,and spd1),heat shock proteins(hsp70c,hsp90a,and hsp90c),and PSII repair mechanisms(psba,rep27,and tba1)were determined to understand the low-temperature *** putrescine application significantly increased Rubisco protein concentration and catalase enzyme activities under low-temperature ***,real-time RT-PCR results and gene expression analysis showed that polyamine metabolism induced gene expression at low-temperatures in the first 24 *** the same way,the gene expression of heat shock proteins(hsp70c,hsp90a,and hsp90c)decreased under low-temperature treatment for 72 h;however,application of putrescine enhanced the gene expression in the first 24 *** results obtained indicated that molecular response in the first 24 h could be important for cold *** psba and tba1 expressions were reduced under low-temperatures depending on the exposure *** contrast,the exogenous putrescine enhanced the expression level of the psba response to low-temperature at 24 and 72 *** results obtained in this study indicate that putrescine could play a role in the PS II repair mechanisms under low-temperature stress.

关键词： Chlamydomonas reinhardtii cold acclimation heat shock protein low-temperature stress PS II repair putrescine

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