Gamze Karanfil, S. E. Ruşen, M. A. Topçu, Seyit Alperen Celtek, A. Rüşen
In general, the outgoing exhaust gasses are released to atmosphere at over temperature of the dew point of water vapor in waste gases. It is well known that recovering a portion of the waste heat enhances the efficiency of boilers and provides fuel savings. In this study, the potential of recovering waste heat emitted by the hot water boiler chimney in a central heating plant of the selected university was investigated. Energy losses were calculated for six months that the central heating system was in full-load operation. As a result of the calculation, it was determined that recovery of the waste heat can be employed as a combustion air preheater by means of a recuperator. It was stated that 53768 m 3 of natural gas savings per year (44.86 TOE/year) can be achieved with the suggested system.
{"title":"APPLICATION OF RECUPERATOR FOR WASTE HEAT RECOVERY FROM EXHAUST FLUE GAS IN HOT WATER BOILER IN THE CENTRAL HEATING PLANT","authors":"Gamze Karanfil, S. E. Ruşen, M. A. Topçu, Seyit Alperen Celtek, A. Rüşen","doi":"10.18038/aubtda.411727","DOIUrl":"https://doi.org/10.18038/aubtda.411727","url":null,"abstract":"In general, the outgoing exhaust gasses are released to atmosphere at over temperature of the dew point of water vapor in waste gases. It is well known that recovering a portion of the waste heat enhances the efficiency of boilers and provides fuel savings. In this study, the potential of recovering waste heat emitted by the hot water boiler chimney in a central heating plant of the selected university was investigated. Energy losses were calculated for six months that the central heating system was in full-load operation. As a result of the calculation, it was determined that recovery of the waste heat can be employed as a combustion air preheater by means of a recuperator. It was stated that 53768 m 3 of natural gas savings per year (44.86 TOE/year) can be achieved with the suggested system.","PeriodicalId":7757,"journal":{"name":"Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78044008","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}
In present study, Ag-doped TiO2 bioceramic coatings were fabricated on cp-Ti by plasma electrolytic oxidation (PEO) and physical vapor deposition (PVD). The phase composition, surface microstructure, elemental composition, surface topography, wettability and chemical state of the PEO and Ag-doped TiO2 surfaces were characterized by using powder- and thin film-X-ray diffraction (TF-XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), surface profilometer and contact angle measurement system (CAM), respectively. The PEO coating’ surface was porous and rough due to the nature of process. The Ti, anatase-TiO2, rutile-TiO2 and Ag2O phases were detected on the Ag-doped PEO surfaces by TF-XRD while The Ti, anatase and rutile phases were obtained on the PEO surfaces. The surface morphology structure of the PEO coating was not changed by PVD process. The Ti, O, P and Ag elements were observed on the Ag-doped PEO surfaces by EDS. Also, the amount of Ag existed on the surface was below cytotoxic limit. The Ag-doped PEO surfaces indicated better hydrophilic character to the PEO surface owing to increasing polarity of the surfaces. In vitro hydroxyapatite-forming ability was evaluated by immersion in simulated body fluid (SBF) at 36.5 °C for 28 days. The Ag-doped PEO surfaces showed good hydroxyapatite formation ability compared to the PEO surface. The antibacterial activity was evaluated by exposing the samples to Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) and they were compared by the reaction of the pathogens to Ag-doped PEO with the PEO controls. The antibacterial ability of the Ag-doped PEO surfaces was significantly improved respect to the PEO surfaces for S. aureus and E. coli.
{"title":"Characterization and Investigation of Biological Properties of Ag-Doped TiO2 Coatings Fabricated on Titanium","authors":"Salih Durdu","doi":"10.18038/AUBTDA.474928","DOIUrl":"https://doi.org/10.18038/AUBTDA.474928","url":null,"abstract":"In present study, Ag-doped TiO2 bioceramic coatings were fabricated on cp-Ti by plasma electrolytic oxidation (PEO) and physical vapor deposition (PVD). The phase composition, surface microstructure, elemental composition, surface topography, wettability and chemical state of the PEO and Ag-doped TiO2 surfaces were characterized by using powder- and thin film-X-ray diffraction (TF-XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), surface profilometer and contact angle measurement system (CAM), respectively. The PEO coating’ surface was porous and rough due to the nature of process. The Ti, anatase-TiO2, rutile-TiO2 and Ag2O phases were detected on the Ag-doped PEO surfaces by TF-XRD while The Ti, anatase and rutile phases were obtained on the PEO surfaces. The surface morphology structure of the PEO coating was not changed by PVD process. The Ti, O, P and Ag elements were observed on the Ag-doped PEO surfaces by EDS. Also, the amount of Ag existed on the surface was below cytotoxic limit. The Ag-doped PEO surfaces indicated better hydrophilic character to the PEO surface owing to increasing polarity of the surfaces. In vitro hydroxyapatite-forming ability was evaluated by immersion in simulated body fluid (SBF) at 36.5 °C for 28 days. The Ag-doped PEO surfaces showed good hydroxyapatite formation ability compared to the PEO surface. The antibacterial activity was evaluated by exposing the samples to Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) and they were compared by the reaction of the pathogens to Ag-doped PEO with the PEO controls. The antibacterial ability of the Ag-doped PEO surfaces was significantly improved respect to the PEO surfaces for S. aureus and E. coli.","PeriodicalId":7757,"journal":{"name":"Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering","volume":"63 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83160431","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}
Antiplane shear vibrations of three-layered strongly vertically inhomogeneous laminates are considered. Polynomial long wave low frequency approximations of the exact dispersion relation are derived and further simplified for the two setups of material and geometric problem parameters corresponding, particularly, to laminated glass plates as well as photovoltaic panels. The associated 1D shortened equations of motion are also established using the conventional asymptotic procedure earlier developed for thin homogeneous structures.
{"title":"Low frequency antiplane shear vibrations of a three-layered elastic plate","authors":"B. Erbaş","doi":"10.18038/AUBTDA.460365","DOIUrl":"https://doi.org/10.18038/AUBTDA.460365","url":null,"abstract":"Antiplane shear vibrations of three-layered strongly vertically inhomogeneous laminates are considered. Polynomial long wave low frequency approximations of the exact dispersion relation are derived and further simplified for the two setups of material and geometric problem parameters corresponding, particularly, to laminated glass plates as well as photovoltaic panels. The associated 1D shortened equations of motion are also established using the conventional asymptotic procedure earlier developed for thin homogeneous structures.","PeriodicalId":7757,"journal":{"name":"Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82335370","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}
Fluorides despite been the most widely studied host matrices for many upconversion nanoparticles are usually hygroscopic and are of limited use. Hence, explorations of new upconversion host materials that will be more efficient in practical application are still active areas of research. In this study, applicability of Ga2O3 as a host matrix for upconversion luminescence was investigated under near infrared (980 nm) excitation. XRD and FT-IR analysis indicate that changes in the calcination temperature and dopant ion concentration lead to crystal phase transformation of nanoparticles from β-Ga2O3 to cubic Yb3Ga5O12 garnet. Resulting changes in crystal field and sites symmetries alter the behaviour of upconversion. Accordingly, tunable green, red and infrared luminescences were observed.
{"title":"Upconversion luminescence properties of Ga2O3: Yb3+, Er3+ nanoparticles: Effects of calcination temperature and dopant concentration","authors":"A. Dulda","doi":"10.18038/AUBTDA.377127","DOIUrl":"https://doi.org/10.18038/AUBTDA.377127","url":null,"abstract":"Fluorides despite been the most widely studied host matrices for many upconversion nanoparticles are usually hygroscopic and are of limited use. Hence, explorations of new upconversion host materials that will be more efficient in practical application are still active areas of research. In this study, applicability of Ga2O3 as a host matrix for upconversion luminescence was investigated under near infrared (980 nm) excitation. XRD and FT-IR analysis indicate that changes in the calcination temperature and dopant ion concentration lead to crystal phase transformation of nanoparticles from β-Ga2O3 to cubic Yb3Ga5O12 garnet. Resulting changes in crystal field and sites symmetries alter the behaviour of upconversion. Accordingly, tunable green, red and infrared luminescences were observed.","PeriodicalId":7757,"journal":{"name":"Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80129419","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}
Nanoindentation is a widely used tool for probing the mechanical properties of materials at the nanoscale. The analysis of the load-displacement curve obtained from nanoindentation provides the hardness and elastic modulus of the material. While hardness is a useful parameter for comparing different alloys and understanding tribological behavior, yield strength is a more useful parameter for alloy design and application in general. The yield strength of a nanoindentation-tested material can be estimated by combining the hardness result with the Tabor factor. This approach is well-established for homogeneous and isotropic materials; however, the application of the approach to recently developed laminated nanocomposites requires a better understanding of the plasticity under nanoindentation. Due to the complicated stress state and the nonhomogeneous geometry of the nanolaminated structure, there is a need to employ numerical methods for this analysis. In this study, the mechanical behavior of a model system of nanolaminated Cu-Nb under nanoindentation was investigated, through modeling the test using finite element method. The force-controlled simulation provided the load-displacement curve that would be obtained from an actual experiment, and Oliver-Pharr method was employed to obtain the hardness of the nanocomposite. The results show that the rule-of-mixture is a good approximation for estimating the nanoindentation hardness of the composites, if the mechanical properties of the constituents are known.
{"title":"FINITE ELEMENT ANALYSIS OF NANOINDENTATION ON NANOLAMINATED MATERIALS","authors":"S. Özerinç","doi":"10.18038/aubtda.446535","DOIUrl":"https://doi.org/10.18038/aubtda.446535","url":null,"abstract":"Nanoindentation is a widely used tool for probing the mechanical properties of materials at the nanoscale. The analysis of the load-displacement curve obtained from nanoindentation provides the hardness and elastic modulus of the material. While hardness is a useful parameter for comparing different alloys and understanding tribological behavior, yield strength is a more useful parameter for alloy design and application in general. The yield strength of a nanoindentation-tested material can be estimated by combining the hardness result with the Tabor factor. This approach is well-established for homogeneous and isotropic materials; however, the application of the approach to recently developed laminated nanocomposites requires a better understanding of the plasticity under nanoindentation. Due to the complicated stress state and the nonhomogeneous geometry of the nanolaminated structure, there is a need to employ numerical methods for this analysis. In this study, the mechanical behavior of a model system of nanolaminated Cu-Nb under nanoindentation was investigated, through modeling the test using finite element method. The force-controlled simulation provided the load-displacement curve that would be obtained from an actual experiment, and Oliver-Pharr method was employed to obtain the hardness of the nanocomposite. The results show that the rule-of-mixture is a good approximation for estimating the nanoindentation hardness of the composites, if the mechanical properties of the constituents are known.","PeriodicalId":7757,"journal":{"name":"Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering","volume":"61 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86040812","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}
This paper presents multi-band and multi-location spectrum measurements campaign conducted in Nigeria in 80-2200 MHz frequency range. The objectives of the study are to quantitatively determine the actual radio spectrum usage profile situation in Nigeria and to determine the radio spectrum usage profile in Nigeria in time, frequency and space. The results from the spectrum measurements campaign shows that a lot of allocated frequency bands in Nigeria have very low signal occupancy rates with the occupancy rates vary randomly in time, frequency and space like other parts of the world. The spectrum measurements campaign results also show that the actual spectral occupancy in Nigeria is less than 10.00%. The low spectral occupancy rate in the five major metropolises suggests a hopeful future for dynamic spectrum access in Nigeria.
{"title":"ASSESSMENT OF RADIO SPECTRUM PROFILE IN NIGERIA USING MULTI-BAND AND MULTI-LOCATION RADIO SPECTRUM OCCUPANCY MEASUREMENTS","authors":"J. Popoola, Uche Otuu","doi":"10.18038/aubtda.425027","DOIUrl":"https://doi.org/10.18038/aubtda.425027","url":null,"abstract":"This paper presents multi-band and multi-location spectrum measurements campaign conducted in Nigeria in 80-2200 MHz frequency range. The objectives of the study are to quantitatively determine the actual radio spectrum usage profile situation in Nigeria and to determine the radio spectrum usage profile in Nigeria in time, frequency and space. The results from the spectrum measurements campaign shows that a lot of allocated frequency bands in Nigeria have very low signal occupancy rates with the occupancy rates vary randomly in time, frequency and space like other parts of the world. The spectrum measurements campaign results also show that the actual spectral occupancy in Nigeria is less than 10.00%. The low spectral occupancy rate in the five major metropolises suggests a hopeful future for dynamic spectrum access in Nigeria.","PeriodicalId":7757,"journal":{"name":"Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering","volume":"136 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89018053","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}
Having access to health care services is the most primary of the basic human rights. It is vital that all citizens in a country are able to get these services equally and homogeneously. Despite its importance, providing health services vary from both country to country and between different provinces or states in country. Similarly, it may cause severe disparities and negative effects between individuals in the society. The primary concern of this study is to determine whether there is any difference between Turkey provinces in terms of accessing health care services, or not. Several clustering algorithms including hierarchical clustering, k-means and partitioning around medoids (pam) were applied to the data set including 31 health indicators of all provinces in Turkey. After comparing these algorithms via using some measures for determining the number of clusters and cluster validity, the findings showed that there were four distinct and significant clusters based on k-means clustering algorithm. It seemed that these clustering results were in a a close reciprocal relationship with the economic development and geographical location of provinces. Clustering results were evaluated and interpreted according to these two important findings.
{"title":"Comparison of Provinces of Turkey In Terms of Accessing Health Care Services by Using Different Clustering Algorithms","authors":"H. Yildirim","doi":"10.18038/AUBTDA.413890","DOIUrl":"https://doi.org/10.18038/AUBTDA.413890","url":null,"abstract":"Having access to health care services is the most primary of the basic human rights. It is vital that all citizens in a country are able to get these services equally and homogeneously. Despite its importance, providing health services vary from both country to country and between different provinces or states in country. Similarly, it may cause severe disparities and negative effects between individuals in the society. The primary concern of this study is to determine whether there is any difference between Turkey provinces in terms of accessing health care services, or not. Several clustering algorithms including hierarchical clustering, k-means and partitioning around medoids (pam) were applied to the data set including 31 health indicators of all provinces in Turkey. After comparing these algorithms via using some measures for determining the number of clusters and cluster validity, the findings showed that there were four distinct and significant clusters based on k-means clustering algorithm. It seemed that these clustering results were in a a close reciprocal relationship with the economic development and geographical location of provinces. Clustering results were evaluated and interpreted according to these two important findings.","PeriodicalId":7757,"journal":{"name":"Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering","volume":"80 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86894120","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}
Use of focused ion beam (FIB) as a nanostructuring platform for fast prototype device development in the area of photonics has been attracting a considerable interest. In this study, we report a systematic investigation of focused ion beam (FIB) induced Ga+ ion implantation in silicon on insulator (SOI) structures. The local implantation of Ga+ ions during milling was studied for a wide range of ion doses, ranging from about 1014 to 1017 ions/cm2, using X-ray photoelectron spectroscopy (XPS). Ion implantation has been realized on identically sized areas for each dose by varying the FIB parameters such as dwell time and loop number. It was found that the most of the Ga+ is within the first 50 nm of Si. This suggests that it can be possible to potentially reduce optical losses caused by the ion implantation in any optical application. Methods such as thermal annealing and wet or dry chemical etching can result in removal of the 50 nm implanted layer of SOI, as a result removing the layer causing potentially high optical losses.
{"title":"INVESTIGATION OF FOCUSED ION BEAM IMPLANTATION PROFILE OF Ga+ IONS FOR APPLICATIONS IN SILICON PHOTONICS","authors":"F. Ay","doi":"10.18038/AUBTDA.471568","DOIUrl":"https://doi.org/10.18038/AUBTDA.471568","url":null,"abstract":"Use of focused ion beam (FIB) as a nanostructuring platform for fast prototype device development in the area of photonics has been attracting a considerable interest. In this study, we report a systematic investigation of focused ion beam (FIB) induced Ga+ ion implantation in silicon on insulator (SOI) structures. The local implantation of Ga+ ions during milling was studied for a wide range of ion doses, ranging from about 1014 to 1017 ions/cm2, using X-ray photoelectron spectroscopy (XPS). Ion implantation has been realized on identically sized areas for each dose by varying the FIB parameters such as dwell time and loop number. It was found that the most of the Ga+ is within the first 50 nm of Si. This suggests that it can be possible to potentially reduce optical losses caused by the ion implantation in any optical application. Methods such as thermal annealing and wet or dry chemical etching can result in removal of the 50 nm implanted layer of SOI, as a result removing the layer causing potentially high optical losses.","PeriodicalId":7757,"journal":{"name":"Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86677253","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}
Cadmium sulfide (CdS) films have been formed using an ultrasonic spray pyrolysis method. These films annealed at a temperature range of 200-500oC in air for 5 hours. The effects of annealing on the vibrational, structural, optical and morphological properties of cadmium sulfide films were looked at using X-ray diffraction (XRD), Raman spectroscopy, Fourier transform infrared (FTIR) spectroscopy, UV-visible spectroscopy(UV–vis) and atomic force microscopy (AFM). The X-ray diffraction data showed that the films had settled along (100) direction with a hexagonal wurtzite type structure. It was found that grain size goes up with an increase in the annealing temperature. The optical band gap numbers of the CdS film at different annealing temperatures were calculated and were found to be in the range of 2.40-2.44 eV. Raman results showed two rises attributed to the 1LO (300cm-1) and 2LO (601cm-1) modes of hexagonal CdS. The chemical bonding was studied by FTIR spectra. The saturation rises in the FTIR spectra of the films located at 550–715 and 844–1160 cm-1 can be given to the Cd–S and C–O phonon modes, respectively. The AFM of all the films were determined. These images colors changed with the annealing temperature.
{"title":"XRD, OPTICAL AND VIBRATIONAL PROPERTIES OF ANNEALED CADMIUM SULFIDE FILMS","authors":"S. Aksay","doi":"10.18038/aubtda.425869","DOIUrl":"https://doi.org/10.18038/aubtda.425869","url":null,"abstract":"Cadmium sulfide (CdS) films have been formed using an ultrasonic spray pyrolysis method. These films annealed at a temperature range of 200-500oC in air for 5 hours. The effects of annealing on the vibrational, structural, optical and morphological properties of cadmium sulfide films were looked at using X-ray diffraction (XRD), Raman spectroscopy, Fourier transform infrared (FTIR) spectroscopy, UV-visible spectroscopy(UV–vis) and atomic force microscopy (AFM). The X-ray diffraction data showed that the films had settled along (100) direction with a hexagonal wurtzite type structure. It was found that grain size goes up with an increase in the annealing temperature. The optical band gap numbers of the CdS film at different annealing temperatures were calculated and were found to be in the range of 2.40-2.44 eV. Raman results showed two rises attributed to the 1LO (300cm-1) and 2LO (601cm-1) modes of hexagonal CdS. The chemical bonding was studied by FTIR spectra. The saturation rises in the FTIR spectra of the films located at 550–715 and 844–1160 cm-1 can be given to the Cd–S and C–O phonon modes, respectively. The AFM of all the films were determined. These images colors changed with the annealing temperature.","PeriodicalId":7757,"journal":{"name":"Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering","volume":"653 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79023475","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}
{"title":"Lanthanide doped bismuth tungstates: an investigation for LED and photocatalysis applications","authors":"Ceren Yilmaz Akkaya, U. Ünal","doi":"10.18038/aubtda.412443","DOIUrl":"https://doi.org/10.18038/aubtda.412443","url":null,"abstract":"","PeriodicalId":7757,"journal":{"name":"Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81996232","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}
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