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Hybrid q-Rung Orthopair Fuzzy Sets Based CoCoSo Model for Floating Offshore Wind Farm Site Selection in Norway

CSEE Journal of Power and Energy Systems 2022年第5期8卷 1261-1280页

作者： Muhammet Deveci Dragan Pamucar Umit Cali emre kantar Konstanze Kolle John O.Tande Department of Industrial Engineering Turkish Naval AcademyNational Defence UniversityIstanbul 34940Turkey Department of Operations Research and Statistics Faculty of Organizational SciencesUniversity of BelgradeBelgradeSerbia Department of Electric Power Engineering Norwegian University of Science and TechnologyTrondheim NO-7491Norway Department of Electric Power Technology SINTEF Energy ResearchTrondheim NO-7491Norway Department of Energy Systems SINTEF Energy ResearchTrondheim NO-7034Norway

Unlocking offshore wind farms’high energy generation potential requires a comprehensive multi-disciplinary analysis that consists of intensive technical,economic,logistical,and environmental *** wind energy projects have high investment volumes that make it essential to conduct extensive site selection to ensure feasible investment decisions that reduce the potential financial *** on the scenario and circumstances,a ranking of alternative offshore wind energy projects helps to prioritise the investment *** algorithms based on expert knowledge can support the prioritisation and thus alleviate the work load for investment decisions in the *** case study considered here is to find the best site for a floating offshore wind farm in Norway from four pre-selected alternatives:Utsira Nord,Stadthavet,Froyabanken,and Trana *** propose a hybrid decisionmaking model as a combined compromised solution(CoCoSo)based on the q-rung orthopair fuzzy sets(q-ROFSs)including the weighted q-rung orthopair fuzzy Hamacher average(Wq-ROFHA)and the weighted q-rung orthopair fuzzy Hamacher geometric mean(Wq-ROFHGM)*** this model,the q-ROFSs based full consistency method(FUCOM)is introduced as a new methodology to determine the weights of the decision *** results of the proposed model show that the best site among the investigated four alternatives is A1:Utsira Nord.A sensitivity analysis has verified the stability of the proposed decision-making model.

关键词： Decision-making q-rung orthopair fuzzy sets Fuzzy hamacher site selection offshore wind farm FUCOM

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Redox active polymer metal chelates for use in flexible symmetrical supercapacitors:Cobalt-containing poly(acrylic acid)polymer electrolytes

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Journal of Energy Chemistry 2021年第4期30卷 145-153页

作者： emre Cevik Ayhan Bozkurt Department of Genetics Research Institute for Research and Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityDammam 31441Saudi Arabia Department of Biophysics Institute for Research and Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityDammam 31441Saudi Arabia

The novel polymer metal chelate electrolytes(polychelates)were prepared by incorporation of cobalt sulfate(Co)into poly(acrylic acid)(PAA)host ***-solid state supercapacitor devices were fabricated using polychelates,PAA-Co X(X:3,5,7,and 10)where X represents the doping fraction(w/w)of Co in *** polymer metal electrolytes were showed excellent bending-stretching properties,thermal stability and electrochemical durability with an optimum ionic conductivity of 3.15×10^(-4) S cm^(-1).Hierarchically porous activated carbon and nano-sized conductive carbon were used to form carbon composite symmetrical device *** electric double-layer capacitor(EDLC)and redox reactions of Co-incorporated polychelates at the interfaces of porous activated carbon provided an optimum specific capacitance of 341.33 F g^(-1) with a device of PAA-Co7,which is at least 15 times enhancement compared to the device of pristine *** PAA-Co7 device also provided energy density of 21.25 Wh kg^(-1) at a power density of 117.69 W kg^(-1).A prolonged cyclic stability of the device exhibited superior capacitive performance after 10,000 charge-discharge cycles and the maintained 90%of its initial *** addition,the supercapacitor with a dimension of 1.5 cm×3 cm containing PAA-Co7 successfully operated the red-blue-green(RGB)LED light.

关键词： Supercapacitor Redox active supercapacitor Cobalt Poly(acrylic acid) Polymer electrolyte

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Relationship between the productivity of Pinus brutia Ten. and site characters, the Taurus Mountains, Turkey

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Journal of Mountain Science 2022年第3期19卷 662-672页

作者： emre KUZUGÜDENLİ Yenisarbademli Vocational School Isparta University of Applied SciencesYenisarbademli32850IspartaTurkey

Turkish red pine is an important forest tree species because of its role in the ecosystem whose range includes many countries in the eastern Mediterranean *** addition,red pine is a preferred forest tree species due to rapid growth,usage in afforestation in arid areas and the production of non-wood forest products such as *** aim of the study was to examine the relationship between the productivity of red pine and ecosystem in the lower and middle belt of the Taurus Mountains,and to determine the interrelations between the productivity of red pine and *** analyses(multiple regression analysis and artificial neural networks)were used to model the efficiency(biomass production)of red *** the multivariate analyses,a productivity model of the species was created with the slope,soil depth,and precipitation in the driest variables.A significant correlation was found between site index and site factors in the driest *** variables had a statistically significant relationship with the site index in the multiple regression *** forecast power of the model was *** the methods used,the artificial neural network consisting of 2 L10 N(2 Layers 10 Neurons)had the highest margin of explanation(R^(2)=0.71)and the lowest margin of *** model has the potential to open land aimed for afforestation studies with red pine in forestry *** results will shed light on afforestation studies to be carried out in the Western Mediterranean region and in similar ecosystems.

关键词： Taurus mountains Site factors Site index Pinus brutia Turkish red pine

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Non-Thermal Atmospheric Plasma:Can it Be Taken as a Common Solution for the Surface Treatment of Dental Materials?

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Plasma Science and Technology 2016年第4期18卷 417-423页

作者： emre SEKER Mehmet Ali KILICARSLAN Serdar POLAT emre OZKIR Suat PAT Department of Prosthodontics Faculty of DentistryEskisehir Osmangazi University Department of Prosthodontics Faculty of DentistryAnkara University Department of Prosthodontics Faculty of DentistryGazi University Department of Prosthodontics Faculty of DentistryAfyon Kocatepe University Faculty of Art and Science Eskisehir Osmangazi University

This study aimed to evaluate the surface roughness and wetting properties of various dental prosthetic materials after different durations of non-thermal atmospheric plasma（NTAP）*** hundred and sixty discs of titanium（Ti）（n：40）,cobalt chromium（Co-Cr）（n：40）,yttrium stabilized tetragonal zirconia polycrystals（Y-TZP）（n：40）and polymethylmethacrylate（PMMA）（n：40）materials were machined and smoothed with silicon carbide *** surface roughness was evaluated in a control group and in groups with different plasma exposure times [1-3-5 s].The average surface roughness（Ra）and contact angle（CA）measurements were recorded via an atomic force microscope（AFM）and tensiometer,*** changes were examined with a scanning electron microscope（SEM）.Data were analyzed with two-way analysis of variance（ANOVA）and the Tukey HSD test α=0.05）.According to the results,the NTAP surface treatment significantly affected the roughness and wettability properties（P 〈 0.05）.SEM images reveal that more grooves were present in the NTAP *** an increase in the NTAP application time,an apparent increment was observed for Ra,except in the PMMA group,and a remarkable reduction in CA was observed in all *** is concluded that the NTAP technology could enhance the roughening and wetting performance of various dental materials.

关键词： dental material atmospheric plasma surface treatment roughness contact angle

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Spatial pattern analysis of post-fire damages in the Menderes District of Turkey

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Frontiers of Earth Science 2020年第2期14卷 446-461页

作者： emre COLAK Filiz SUNAR Civil Engineering Faculty Istanbul Technical UniversityIstanbul 80626Turkey

Forest fires,whether caused naturally or by human activity can have disastrous effects on the ***,located in the Mediterranean climate zone,experiences hundreds of forest fires every *** the past two decades,these fires have destroyed approximately 308000 ha of forest area,threatening the sustainability of its *** study analyzes the forest fire that occurred in the Menderes region of Izmir on July 1,2017,by using pre-and post-fire Sentinel 2(10 m and 20 m)and Landsat 8(30 m)satellite images,MODIS and VIIRS fire radiative power(FRP)data(1000 m and 375 m,respectively),and reference data obtained from a field ***,image processing techniques integrated with the Geographic Information System(GIS)database were applied to a satellite image data set to monitor,analyze,and map the effects of the forest *** results show that the land surface temperature(LST)of the burned forest area increased from 1 to 11°C.A high correlation(R=0.81)between LST and burn severity was also *** burned areas were calculated using two different classification methods,and their accuracy was compared with the reference *** to the accuracy assessment,the Sentinel(10 m)image classification gave the best result(96.43%for Maximum Likelihood,and 99.56%for Support Vector Machine).The relationship between topographical/forest parameters,burn severity and disturbance index was evaluated for spatial pattern *** to the results,the areas having canopy closure between 71%–100%and slope above 35%had the highest burn *** a final step,a spatial correlation analysis was performed to evaluate the effectiveness of MODIS and VIIRS FRP data in the postfire analysis.A high correlation was found between FRPslope,and FRP-burn severity(0.96 and 0.88,respectively).

关键词： remote sensing GIS spectral indices disturbance index land surface temperature burn severity

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Utilization of psychoacoustic parameters for occupancy-based acoustic evaluation in eating establishments

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Building Simulation 2022年第5期15卷 729-739页

作者： Onurcan Cakir Mustafa emre ilal izmir Institute of Technology Faculty of ArchitectureIzmirTurkey

Psychoacoustic parameters are mostly used for determining the sound quality of mechanical *** have also started to be used for evaluating soundscapes of open areas and enclosed *** research aims to find out the relationship between the psychoacoustic parameters and acoustic comfort in non-acoustic enclosed public spaces,specifically in eating *** on-site measurements and laboratory listening tests were conducted for five eating *** on-site measurements,a simultaneous questionnaire study was also carried *** and objective data were comparatively *** tests were based on auralizations with calibrated simulation *** provided a research model,that allows control over the acoustic environment without having to make real changes in the physical elements of the eating *** auralization sound files were presented to listening test participants with headphones and they evaluated soundscapes with different psychoacoustic *** results,better acoustic comfort was found to be related with higher sharpness,lower reverberation time,lower loudness and lower roughness values for the examined parameter ranges.

关键词： psychoacoustic parameters eating establishments acoustic comfort soundscape

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Ecoregional height-diameter models for Scots pine in Turkiye

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Journal of Forestry Research 2024年第6期35卷 49-61页

作者： Fadime Sağlam Oytun emre Sakici Department of Forest Engineering Faculty of ForestryKastamonu University37150 KastamonuTurkey

Ecoregion-based height-diameter models were developed in the present study for Scots pine(Pinus sylves-tris L.)stands in Turkiye and included several ecological factors derived from a pre-existing ecoregional classification *** data were obtained from 2831 sample trees in 292 sample *** generalized height–diameter models were developed,and the best model(HD10)was selected according to statistical ***,nonlinear mixed-effects modeling was applied to the best *** R2 for the generalized height‒diameter model(Richards function)modified by Sharma and Parton is 0.951,and the final model included number of trees,dominant height,and diameter at breast height,with a random parameter associated with each ecoregion attached to the inverse of the mean basal *** full model predictions using the nonlinear mixed-effects model and the reduced model(HD10)predictions were compared using the nonlinear sum of extra squares test,which revealed significant differences between ecore-gions;ecoregion-based height–diameter models were thus found to be suitable to *** addition,using these models in appropriate ecoregions was very important for achieving reliable predictions with low prediction errors.

关键词： Tree height Nonlinear mixed-effects modelling Nonlinear sum of extra squares method Ecoregion Scots pine

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Fast clogging problem of open check dams and a new type suggestion:curved footed type open check dam

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Journal of Mountain Science 2023年第5期20卷 1201-1219页

作者： ANILAN Tugce AKCALI emre Karadeniz Technical University Department of Civil EngineeringTrabzon 61080Turkiye State Hydraulic Works 6th Regional DirectorateAdana 01120Turkiye

Driftwood is one of the important physical components in mountainous rivers which causes severe hazards due to the clogging of bridges,culverts,and narrow sections during ***,the understanding of driftwood dynamics and mitigation measures are crucial for managing wood in *** check dams are the most commonly used engineering measure for preventing driftwood from reaching downstream ***,these open check dams frequently lose their sediment transport function when they are blocked by sediment and driftwood,especially during major flood *** paper proposes a new type of open check dam for preventing from ***,flume experiments were conducted to examine the influence of different types of open check dams on the characteristics of driftwood *** the model with wood length(LWD)=16.5 cm,wood diameter(D)=15 mm,and wood number(N)=172,the highest trapping efficiency was observed with 90.1%and 87.2%retention rates for the classical debris flow breaker and curved footed open check dams,*** tests showed that through this proposed design,woody debris blockage in a very short time was prevented from the accumulation of woods beside the *** addition to this,most of the sediment passed through the check dam and most of the driftwood got *** can be briefly stated that the geometrical design of the structure plays an important role and can be chosen carefully to optimize trapping *** designing this type of open check dams in mountain river basins,it may provide a better understanding of the driftwood accumulation and basis for the optimal design of these *** development of the solution proposed in this work can pave the way for designing different types of open check dams for effective flood management.

关键词： Debris flow Open check dam Driftwood Trapping efficiency Sediment transport Flood management Riverflow

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Use of centrifugal-gravity concentration for rejection of talc and recovery improvement in base-metal flotation

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International Journal of Minerals,Metallurgy and Materials 2016年第8期23卷 859-867页

作者： Bern Klein Naci emre Altun Hassan Ghaffari NBK Institute of Mining Engineering The University of British Columbia Department of Mining Engineering Middle East Technical University Tetra Tech Metallurgy

The possibility of using a centrifugal-gravity concentrator to reject Mg-bearing minerals and minimize metal losses in the flotation of base metals was evaluated. Sample characterization, batch scoping tests, pilot-scale tests, and regrind-flotation tests were conducted on a Ni flotation tailings stream. Batch tests revealed that the Mg grade decreased dramatically in the concentrate products. Pilot-scale testing of a continuous centrifugal concentrator（Knelson CVD6） on the flotation tailings revealed that a concentrate with a low mass yield, low Mg content, and high Ni upgrade ratio could be achieved. Under optimum conditions, a concentrate at 6.7% mass yield was obtained with 0.85% Ni grade at 12.9% Ni recovery and with a low Mg distribution（1.7%）. Size partition curves demonstrated that the CVD also operated as a size classifier, enhancing the rejection of talc fines. Overall, the CVD was capable of rejecting Mg-bearing minerals. Moreover, an opportunity exists for the novel use of centrifugal-gravity concentration for scavenging flotation tailings and/or after comminution to minimize amount of Mg-bearing minerals reporting to flotation.

关键词： flotation base metals talc centrifugation gravity concentrators

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Soft metamaterial with programmable ferromagnetism

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Microsystems & Nanoengineering 2022年第6期8卷 217-223页

作者： Kerem Kaya emre Iseri Wouter van der Wijngaart Division of Micro and Nanosystems KTH Royal Institute of TechnologyStockholm 10044Sweden

Magnetopolymers are of interest in smart material applications;however,changing their magnetic properties post synthesis is *** this study,we introduce easily programmable polymer magnetic composites comprising 2D lattices of droplets of solid-liquid phase change material,with each droplet containing a single magnetic dipole *** composites are ferromagnetic with a Curie temperature defined by the rotational freedom of the particles above the droplet melting *** demonstrate magnetopolymers combining high remanence characteristics with Curie temperatures below the composite degradation *** easily reprogram the material between four states:(1)a superparamagnetic state above the melting point which,in the absence of an external magnetic field,spontaneously collapses to;(2)an artificial spin ice state,which after cooling forms either;(3)a spin glass state with low bulk remanence,or;(4)a ferromagnetic state with high bulk remanence when cooled in the presence of an external magnetic *** observe the spontaneous emergence of 2D magnetic vortices in the spin ice and elucidate the correlation of these vortex structures with the external bulk *** also demonstrate the easy programming of magnetically latching structures.

关键词： composites composite ferromagnetic

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