Pub Date : 2018-04-01DOI: 10.12739/nwsa.2018.13.2.2a0146
Ijlal Şimşek, Musa Yildirim, Tansel Tunçay, Dursun Özyürek, Doğan Şimşek
Bu calismada, mekanik ogutme yontemiyle uretilen Al-bazli kompozit malzemelerin uretiminde farkli miktarlarda ilave edilen SiC ve ogutme suresinin mikroyapi, yogunluk ve sertlik uzerine etkisi incelenmistir. Calisma kapsaminda, aluminyum matrise farkli miktarlarda (%5, %10, %15 ve %20) SiC ilave edilerek 4 farkli surede (30, 60, 90, 120 dakika) mekanik ogutulmustur. Atritor tipi mekanik alasimlama cihazinda ogutme elemani olarak 6mm capinda celik bilya, 750 devir/dakila’lik ogutme hizi, 10:1 bilya-toz orani, islem kontrol kimyasali olarak %2 stearik asit kullanilmistir. Kompozit tozlarin uretimi argon ortaminda yapilmistir. Uretilen kompozit tozlar tarama elektron mikroskobu, EDS analizleri, optik mikroskop ve toz boyut analizoru kullanilarak karakterize edilmistir. Yapilan calismalar sonucunda, ilave edilen SiC miktari ve ogutme suresi arttikca toz boyutunda azalma gorulurken, sertlik degerlerinde artis gorulmektedir. Bununla birlikte ilave edilen SiC miktari arttikca da yogunlukta artis gorulmektedir.
{"title":"MEKANİK ALAŞIMLAMA/ÖĞÜTME YÖNTEMİ İLE ÜRETİLEN Al-SiC KOMPOZİTLERİN İNCELENMESİ","authors":"Ijlal Şimşek, Musa Yildirim, Tansel Tunçay, Dursun Özyürek, Doğan Şimşek","doi":"10.12739/nwsa.2018.13.2.2a0146","DOIUrl":"https://doi.org/10.12739/nwsa.2018.13.2.2a0146","url":null,"abstract":"Bu calismada, mekanik ogutme yontemiyle uretilen Al-bazli kompozit malzemelerin uretiminde farkli miktarlarda ilave edilen SiC ve ogutme suresinin mikroyapi, yogunluk ve sertlik uzerine etkisi incelenmistir. Calisma kapsaminda, aluminyum matrise farkli miktarlarda (%5, %10, %15 ve %20) SiC ilave edilerek 4 farkli surede (30, 60, 90, 120 dakika) mekanik ogutulmustur. Atritor tipi mekanik alasimlama cihazinda ogutme elemani olarak 6mm capinda celik bilya, 750 devir/dakila’lik ogutme hizi, 10:1 bilya-toz orani, islem kontrol kimyasali olarak %2 stearik asit kullanilmistir. Kompozit tozlarin uretimi argon ortaminda yapilmistir. Uretilen kompozit tozlar tarama elektron mikroskobu, EDS analizleri, optik mikroskop ve toz boyut analizoru kullanilarak karakterize edilmistir. Yapilan calismalar sonucunda, ilave edilen SiC miktari ve ogutme suresi arttikca toz boyutunda azalma gorulurken, sertlik degerlerinde artis gorulmektedir. Bununla birlikte ilave edilen SiC miktari arttikca da yogunlukta artis gorulmektedir.","PeriodicalId":418729,"journal":{"name":"NWSA Academic Journals","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115304738","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}
Pub Date : 2018-04-01DOI: 10.12739/nwsa.2018.13.2.2a0143
S. O. Degertekin, L. Lamberti, I. Ugur
The Jaya algorithm (JA) which is very recently developed metaheuristic method is proposed for design optimization of tower structures. The distinctive characteristic of JA is that it does not use algorithm-specific parameters. The algorithm has a very simple formulation where the basic idea is to approach the best solution and escape from the worst solution. Continuous design optimization of 72-bar spatial tower and discrete design optimization of 244-bar spatial tower structure are used to demonstrate the validity of JA. The results show that the JA can obtain better designs than those of the other metaheuristic optimization methods in terms of optimized weight, standard deviation and number of structural analyses.
{"title":"DISCRETE AND CONTINUOUS DESIGN OPTIMIZATION OF TOWER STRUCTURES USING THE JAYA ALGORITHM","authors":"S. O. Degertekin, L. Lamberti, I. Ugur","doi":"10.12739/nwsa.2018.13.2.2a0143","DOIUrl":"https://doi.org/10.12739/nwsa.2018.13.2.2a0143","url":null,"abstract":"The Jaya algorithm (JA) which is very recently developed metaheuristic method is proposed for design optimization of tower structures. The distinctive characteristic of JA is that it does not use algorithm-specific parameters. The algorithm has a very simple formulation where the basic idea is to approach the best solution and escape from the worst solution. Continuous design optimization of 72-bar spatial tower and discrete design optimization of 244-bar spatial tower structure are used to demonstrate the validity of JA. The results show that the JA can obtain better designs than those of the other metaheuristic optimization methods in terms of optimized weight, standard deviation and number of structural analyses.","PeriodicalId":418729,"journal":{"name":"NWSA Academic Journals","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122658342","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}
Pub Date : 2018-04-01DOI: 10.12739/nwsa.2018.13.2.2a0140
Mustafa Yasin Erten, Hüseyin Aydi̇lek, Ertuğrul Çam, N. Inanç
Due to the non-storable nature of electric energy, short-term and long-term electricity generation and consumption forecast are critical to keeping electricity market in balance. In addition, the production estimate of wind energy is parallel to the estimate of wind speed. Since wind speed forecasts includes seasonal and time-dependent trends, time series forecasting methods produce successful results in wind energy forecasting. However, choosing the most appropriate time series forecasting method for short-term and long-term production forecasts is of special importance. In this study, short-term and long-term wind speed estimations were made for the wind turbine at Kirikkale University by using Exponential Smoothing (ES) and ARMA (Auto Regressive Moving Average) methods. The most suitable methods for forecasting short-term and long-term wind speed have been determined with the obtained results.
{"title":"COMPARING TIME SERIES FORECASTING METHODS TO ESTIMATE WIND SPEED IN KIRIKKALE REGION","authors":"Mustafa Yasin Erten, Hüseyin Aydi̇lek, Ertuğrul Çam, N. Inanç","doi":"10.12739/nwsa.2018.13.2.2a0140","DOIUrl":"https://doi.org/10.12739/nwsa.2018.13.2.2a0140","url":null,"abstract":"Due to the non-storable nature of electric energy, short-term and long-term electricity generation and consumption forecast are critical to keeping electricity market in balance. In addition, the production estimate of wind energy is parallel to the estimate of wind speed. Since wind speed forecasts includes seasonal and time-dependent trends, time series forecasting methods produce successful results in wind energy forecasting. However, choosing the most appropriate time series forecasting method for short-term and long-term production forecasts is of special importance. In this study, short-term and long-term wind speed estimations were made for the wind turbine at Kirikkale University by using Exponential Smoothing (ES) and ARMA (Auto Regressive Moving Average) methods. The most suitable methods for forecasting short-term and long-term wind speed have been determined with the obtained results.","PeriodicalId":418729,"journal":{"name":"NWSA Academic Journals","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128365614","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}
Pub Date : 2018-04-01DOI: 10.12739/nwsa.2018.13.2.3a0083
Hafize Telceken, A. Karatepe, Mehmet Ataş, Taner Daştan, Mustafa Karatepe
Schiff bazlari epoksidasyon reaksiyonlarinda katalizor, iletken polimerlerin eldesinde monomer, antifungal, antibakteriyel, antimikrobiyal ve bazi oksidatif radikal turlerine karsi antioksidan olarak kullanilmaktadir. Son yilllarda, bircok Schiff bazlari turevi sentezlenmeye devam edilmektedir. Bu arastirmada, hidroksiure turevi Schiff bazi Cu (L-Cu), Cd (L-Cd) ve Zn (L-Zn) metal komplekslerinin antimikrobiyal aktiviteleri in vitro olarak arastirildi. In vitro denemelerde mikrodilusyon broth metodu uygulandi. Sonuc olarak in vitro calismada Hidroksiure Schiff bazi metal kompleksleri etkili bir antimikrobiyal aktivite gostermistir.
{"title":"HİDROKSİÜRE TÜREVİ SCHİFF BAZI METAL KOMPLEKSLERİNİN ANTİMİKROBİYAL ÖZELLİKLERİNİN ARAŞTIRILMASI","authors":"Hafize Telceken, A. Karatepe, Mehmet Ataş, Taner Daştan, Mustafa Karatepe","doi":"10.12739/nwsa.2018.13.2.3a0083","DOIUrl":"https://doi.org/10.12739/nwsa.2018.13.2.3a0083","url":null,"abstract":"Schiff bazlari epoksidasyon reaksiyonlarinda katalizor, iletken polimerlerin eldesinde monomer, antifungal, antibakteriyel, antimikrobiyal ve bazi oksidatif radikal turlerine karsi antioksidan olarak kullanilmaktadir. Son yilllarda, bircok Schiff bazlari turevi sentezlenmeye devam edilmektedir. Bu arastirmada, hidroksiure turevi Schiff bazi Cu (L-Cu), Cd (L-Cd) ve Zn (L-Zn) metal komplekslerinin antimikrobiyal aktiviteleri in vitro olarak arastirildi. In vitro denemelerde mikrodilusyon broth metodu uygulandi. Sonuc olarak in vitro calismada Hidroksiure Schiff bazi metal kompleksleri etkili bir antimikrobiyal aktivite gostermistir.","PeriodicalId":418729,"journal":{"name":"NWSA Academic Journals","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134613416","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}
Pub Date : 2018-04-01DOI: 10.12739/nwsa.2018.13.2.2a0144
Erdal Karadeniz, Metecan İşçioğlu
Bu calismanin amaci, Vickers mikro-sertligin uygulanan yuke bagimliligini incelemektir. Cunku mikro-sertlik olcum sonuclari uygulanan yuk degerleri artisi ile azalan veya artan degerler seklinde olabilmektedir. Bu olgu, iz boyut etkisi (ISE) veya ters iz boyut etkisi (RISE) olarak ifade edilir ve AISI 1040 celiginden martenzitik, 300-450-600 o C’lerde temperlenmis matenzitik numuneler icin incelenmistir. Incelenen numuneler icin mikro-sertlik olcum sonuclari, uygulanan yuk degerleri artisi ile artan degerler (RISE) seklindedir. Deneysel sonuclar ile Meyer’s yasasi, Orantili numune direnci (PSR) ve Modifiye edilmis orantili numune direnci (MPSR) modelleri karsilastirilmistir. Deneysel veriler ile en uyumlu sonuclar MPSR modeliyle elde edilmistir.
本研究的目的是调查维氏硬度与外加载荷的关系。这是因为显微硬度测量结果会随着施加载荷值的增加而增大或减小。这种现象被称为微量尺寸效应（ISE）或反向微量尺寸效应（RISE），研究对象是在 300-450-600o C 下回火的 AISI 1040 钢马氏体试样。所分析试样的显微硬度测量结果显示，随着施加载荷值的增加，数值（RISE）也在增加。梅耶定律、比例试样电阻（PSR）和修正比例试样电阻（MPSR）模型与实验结果进行了比较。MPSR 模型与实验数据的一致性最好。
{"title":"AISI 1040 ÇELİKLERİ İÇİN VİCKERS MİKROSERTLİK–UYGULANAN YÜK ARASINDAKİ İLİŞKİNİN İNCELENMESİ","authors":"Erdal Karadeniz, Metecan İşçioğlu","doi":"10.12739/nwsa.2018.13.2.2a0144","DOIUrl":"https://doi.org/10.12739/nwsa.2018.13.2.2a0144","url":null,"abstract":"Bu calismanin amaci, Vickers mikro-sertligin uygulanan yuke bagimliligini incelemektir. Cunku mikro-sertlik olcum sonuclari uygulanan yuk degerleri artisi ile azalan veya artan degerler seklinde olabilmektedir. Bu olgu, iz boyut etkisi (ISE) veya ters iz boyut etkisi (RISE) olarak ifade edilir ve AISI 1040 celiginden martenzitik, 300-450-600 o C’lerde temperlenmis matenzitik numuneler icin incelenmistir. Incelenen numuneler icin mikro-sertlik olcum sonuclari, uygulanan yuk degerleri artisi ile artan degerler (RISE) seklindedir. Deneysel sonuclar ile Meyer’s yasasi, Orantili numune direnci (PSR) ve Modifiye edilmis orantili numune direnci (MPSR) modelleri karsilastirilmistir. Deneysel veriler ile en uyumlu sonuclar MPSR modeliyle elde edilmistir.","PeriodicalId":418729,"journal":{"name":"NWSA Academic Journals","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126642756","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}
Pub Date : 2018-04-01DOI: 10.12739/nwsa.2018.13.2.2a0150
M. Özçelik
Gelismis ulkelerde, yuksek oranda bilgi ve beceri iceren mesleki kalite seviyesine sahip insan gucunun ve ileri teknolojilerle donanmis sanayinin ilk siralarda yer aldigi gorulur. Hizli teknolojik gelismeleri takip edebilen elemanlarin yetismesinde ise mesleki teknik egitimin temel oldugu bilinen bir gercektir. Yapilan calismada elektrik egitiminde; ihtiyac alanina, kullanici istegine gore degisebilen moduler yapiya sahip tesisat ve tasinabilen kompanzasyon egitim duzenekleri tasarlanmis ve imal edilmistir. Sonuc olarak, pratik ve kullanimi kolay olacak sekilde tasarlanmis ve yapilmis olan moduler elektrik egitim araclari sayesinde, laboratuvar uygulamalarinin sinif ortaminda da yapilmasi mumkun olmustur.
{"title":"ELEKTRİK TESİSAT VE KOMPANZASYON MODÜLER EĞİTİM SETİ TASARIMI VE UYGULAMASI","authors":"M. Özçelik","doi":"10.12739/nwsa.2018.13.2.2a0150","DOIUrl":"https://doi.org/10.12739/nwsa.2018.13.2.2a0150","url":null,"abstract":"Gelismis ulkelerde, yuksek oranda bilgi ve beceri iceren mesleki kalite seviyesine sahip insan gucunun ve ileri teknolojilerle donanmis sanayinin ilk siralarda yer aldigi gorulur. Hizli teknolojik gelismeleri takip edebilen elemanlarin yetismesinde ise mesleki teknik egitimin temel oldugu bilinen bir gercektir. Yapilan calismada elektrik egitiminde; ihtiyac alanina, kullanici istegine gore degisebilen moduler yapiya sahip tesisat ve tasinabilen kompanzasyon egitim duzenekleri tasarlanmis ve imal edilmistir. Sonuc olarak, pratik ve kullanimi kolay olacak sekilde tasarlanmis ve yapilmis olan moduler elektrik egitim araclari sayesinde, laboratuvar uygulamalarinin sinif ortaminda da yapilmasi mumkun olmustur.","PeriodicalId":418729,"journal":{"name":"NWSA Academic Journals","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128679979","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}
Pub Date : 2018-04-01DOI: 10.12739/nwsa.2018.13.2.2a0137
S. Tosun, A. Öztürk, U. Hasirci
Power systems are exposed to significant structural changes in recent years. One of the main reasons for this is the integration of renewable energy sources into power systems. Today, especially renewable energy sources such as wind and sun are densely connected to power systems at various points. As a result, changes occur in the structures of the power systems. These structural changes also affect the parameters of power systems. One of these parameters, voltage stability, is considered as an important criterion in terms of the quality of electric energy and the continuity of electric energy. In this study, the voltage stability analysis of the power system was made by adding the renewable energy sources to various points on six bus power system. The review focuses wind power plants heavily used in renewable energy sources. Various scenarios have added renewable energy sources at various levels to the consumption points of the power system. As a result of these scenarios, stability limit values of the power system are investigated. The study was performed through the Power World simulation program. In addition, the P-V curves of the buses are plotted with continuous load flow. According to the results obtained, it is observed that the system has improved stability limits, voltage and power.
{"title":"THE EFFECTS OF RENEWABLE ENERGY SOURCES ON VOLTAGE STABILITY","authors":"S. Tosun, A. Öztürk, U. Hasirci","doi":"10.12739/nwsa.2018.13.2.2a0137","DOIUrl":"https://doi.org/10.12739/nwsa.2018.13.2.2a0137","url":null,"abstract":"Power systems are exposed to significant structural changes in recent years. One of the main reasons for this is the integration of renewable energy sources into power systems. Today, especially renewable energy sources such as wind and sun are densely connected to power systems at various points. As a result, changes occur in the structures of the power systems. These structural changes also affect the parameters of power systems. One of these parameters, voltage stability, is considered as an important criterion in terms of the quality of electric energy and the continuity of electric energy. In this study, the voltage stability analysis of the power system was made by adding the renewable energy sources to various points on six bus power system. The review focuses wind power plants heavily used in renewable energy sources. Various scenarios have added renewable energy sources at various levels to the consumption points of the power system. As a result of these scenarios, stability limit values of the power system are investigated. The study was performed through the Power World simulation program. In addition, the P-V curves of the buses are plotted with continuous load flow. According to the results obtained, it is observed that the system has improved stability limits, voltage and power.","PeriodicalId":418729,"journal":{"name":"NWSA Academic Journals","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134052498","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}
Pub Date : 2018-04-01DOI: 10.12739/nwsa.2018.13.2.1b0050
Nuran Akyurt
Bu calisma; Universitelerde saglik egitimi alan ogrencilerin girisimcilik ozelliklerinin incelenmesi, girisimcilik egilimlerinin belirlenmesi, demografik ozelliklerinin girisimcilige etkisi ve karsilasabilecekleri sorunlara yonelik cozum uretebilme yetilerinin olcumu amaciyla yapilmistir. Calismanin hedef kitlesini, devlet ve vakif universitelerinin, saglik meslek yuksekokullarinda tibbi goruntuleme teknikleri programinda ogrenim goren 189 ogrenci olusturmustur. Ankete katilan saglik ogrencilerinin 141’i (% 74.6 ) kiz, 48’i (%25.4) erkektir. Bu calismada girisimcilik alt boyutlarinin okul turu ve ailenin kendi isinin sahibi olmasi arasinda anlamli farkliliklar bulunmamistir. Arastirma bulgulari ogrencilerin genel anlamda girisimcilik ilgilerinin dusuk duzeyde oldugunu gostermektedir. Saglik egitimi veren on lisans mufredatina girisimcilik dersinin eklenmesi ve bu derslerde girisimcilik ilkelerinden yararlanma konularina yer verilmesi saglik alanindaki problemlerin cozumune onemli derecede katki saglayacagi dusunulmektedir.
{"title":"ÜNİVERSİTE ÖĞRENCİLERİNİN GİRİŞİMCİLİK EĞİLİMLERİNİN BELİRLENMESİ: SAĞLIK ÖRNEĞİ","authors":"Nuran Akyurt","doi":"10.12739/nwsa.2018.13.2.1b0050","DOIUrl":"https://doi.org/10.12739/nwsa.2018.13.2.1b0050","url":null,"abstract":"Bu calisma; Universitelerde saglik egitimi alan ogrencilerin girisimcilik ozelliklerinin incelenmesi, girisimcilik egilimlerinin belirlenmesi, demografik ozelliklerinin girisimcilige etkisi ve karsilasabilecekleri sorunlara yonelik cozum uretebilme yetilerinin olcumu amaciyla yapilmistir. Calismanin hedef kitlesini, devlet ve vakif universitelerinin, saglik meslek yuksekokullarinda tibbi goruntuleme teknikleri programinda ogrenim goren 189 ogrenci olusturmustur. Ankete katilan saglik ogrencilerinin 141’i (% 74.6 ) kiz, 48’i (%25.4) erkektir. Bu calismada girisimcilik alt boyutlarinin okul turu ve ailenin kendi isinin sahibi olmasi arasinda anlamli farkliliklar bulunmamistir. Arastirma bulgulari ogrencilerin genel anlamda girisimcilik ilgilerinin dusuk duzeyde oldugunu gostermektedir. Saglik egitimi veren on lisans mufredatina girisimcilik dersinin eklenmesi ve bu derslerde girisimcilik ilkelerinden yararlanma konularina yer verilmesi saglik alanindaki problemlerin cozumune onemli derecede katki saglayacagi dusunulmektedir.","PeriodicalId":418729,"journal":{"name":"NWSA Academic Journals","volume":"444 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133240533","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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