http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Ulucak, Gulsen (검색결과 6 건)
- 무료
- 기관 내 무료
- 유료
-
Danish,Recep Ulucak,Seyfettin Erdogan 한국원자력학회 2022 Nuclear Engineering and Technology Vol.54 No.4
The earlier studies have analyzed theoretical links between nuclear energy and carbon dioxide (CO2)emissions concerning territorial (or production-based) emissions. Here using the latest available dataset,this study explores the impacts of nuclear energy on production-based and consumption-based CO2emission in the era of globalization for the Organization for Economic Co-operation and Development(OECD) countries. The Driscoll-Kraay regression method reveals that nuclear energy is beneficial for thereduction of production-based CO2 emissions. However, it is revealed that nuclear energy does notreduce consumption-based CO2 emissions that are traded internationally and hence not comprised inconventional production-based emissions (territory) inventories. Globalization tends to reduce bothproduction-based and demand-based carbon emissions. Finally, Environmental Kuznets Curve (EKC) isvalidated for both kinds of CO2 emissions. The findings may deliver practical policy implications relatedto nuclear energy and CO2 emissions for selected countries.
-
ON STRONGLY QUASI PRIMARY IDEALS
Koc, Suat,Tekir, Unsal,Ulucak, Gulsen Korean Mathematical Society 2019 대한수학회보 Vol.56 No.3
In this paper, we introduce strongly quasi primary ideals which is an intermediate class of primary ideals and quasi primary ideals. Let R be a commutative ring with nonzero identity and Q a proper ideal of R. Then Q is called strongly quasi primary if $ab{\in}Q$ for $a,b{\in}R$ implies either $a^2{\in}Q$ or $b^n{\in}Q$ ($a^n{\in}Q$ or $b^2{\in}Q$) for some $n{\in}{\mathbb{N}}$. We give many properties of strongly quasi primary ideals and investigate the relations between strongly quasi primary ideals and other classical ideals such as primary, 2-prime and quasi primary ideals. Among other results, we give a characterization of divided rings in terms of strongly quasi primary ideals. Also, we construct a subgraph of ideal based zero divisor graph ${\Gamma}_I(R)$ and denote it by ${\Gamma}^*_I(R)$, where I is an ideal of R. We investigate the relations between ${\Gamma}^*_I(R)$ and ${\Gamma}_I(R)$. Further, we use strongly quasi primary ideals and ${\Gamma}^*_I(R)$ to characterize von Neumann regular rings.
-
Danish, Danish,Ozcan, Burcu,Ulucak, Recep Korean Nuclear Society 2021 Nuclear Engineering and Technology Vol.53 No.6
The transition toward clean energy is an issue of great importance with growing debate in climate change mitigation. The complex nature of nuclear energy-CO<sub>2</sub> emissions nexus makes it difficult to predict whether or not nuclear acts as a clean energy source. Hence, we examined the relationship between nuclear energy consumption and CO<sub>2</sub> emissions in the context of the IPAT and Environmental Kuznets Curve (EKC) framework. Dynamic Auto-regressive Distributive Lag (DARDL), a newly modified econometric tool, is employed for estimation of long- and short-run dynamics by using yearly data spanning from 1971 to 2018. The empirical findings of the study revealed an instantaneous increase in nuclear energy reduces environmental pollution, which highlights that more nuclear energy power in the Indian energy system would be beneficial for climate change mitigation. The results further demonstrate that the overarching effect of population density in the IPAT equation stimulates carbon emissions. Finally, nuclear energy and population density contribute to form the EKC curve. To achieving a cleaner environment, results point out governmental policies toward the transition of nuclear energy that favours environmental sustainability.
-
On strongly quasi primary ideals
Suat Koc,Unsal Tekir,Gulsen Ulucak 대한수학회 2019 대한수학회보 Vol.56 No.3
In this paper, we introduce strongly quasi primary ideals which is an intermediate class of primary ideals and quasi primary ideals. Let $R$ be a commutative ring with nonzero identity and $Q$ a proper ideal of $R$. Then $Q$ is called strongly quasi primary if $ab\in Q$ for $a,b\in R$ implies either $a^{2}\in Q$ or $b^{n}\in Q~ (a^{n}\in Q$ or $b^{2}\in Q)$ for some $n\in \mathbb{N} $. We give many properties of strongly quasi primary ideals and investigate the relations between strongly quasi primary ideals and other classical ideals such as primary, 2-prime and quasi primary ideals. Among other results, we give a characterization of divided rings in terms of strongly quasi primary ideals. Also, we construct a subgraph of ideal based zero divisor graph $\Gamma_{I}(R)$ and denote it by $\Gamma_{I}^{\ast}(R)$, where $I$ is an ideal of $R$. We investigate the relations between $\Gamma_{I}^{\ast} (R)$ and $\Gamma_{I}(R)$. Further, we use strongly quasi primary ideals and $\Gamma_{I}^{\ast}(R)$ to characterize von Neumann regular rings.
-
ON WEAKLY 2-ABSORBING PRIMARY SUBMODULES OF MODULES OVER COMMUTATIVE RINGS
Darani, Ahmad Yousefian,Soheilnia, Fatemeh,Tekir, Unsal,Ulucak, Gulsen Korean Mathematical Society 2017 대한수학회지 Vol.54 No.5
Assume that M is an R-module where R is a commutative ring. A proper submodule N of M is called a weakly 2-absorbing primary submodule of M if $0{\neq}abm{\in}N$ for any $a,b{\in}R$ and $m{\in}M$, then $ab{\in}(N:M)$ or $am{\in}M-rad(N)$ or $bm{\in}M-rad(N)$. In this paper, we extended the concept of weakly 2-absorbing primary ideals of commutative rings to weakly 2-absorbing primary submodules of modules. Among many results, we show that if N is a weakly 2-absorbing primary submodule of M and it satisfies certain condition $0{\neq}I_1I_2K{\subseteq}N$ for some ideals $I_1$, $I_2$ of R and submodule K of M, then $I_1I_2{\subseteq}(N:M)$ or $I_1K{\subseteq}M-rad(N)$ or $I_2K{\subseteq}M-rad(N)$.
-
ON WEAKLY 2-ABSORBING PRIMARY SUBMODULES OF MODULES OVER COMMUTATIVE RINGS
Ahmad Yousefian Darani,Fatemeh Soheilnia,Unsal Tekir,Gulsen Ulucak 대한수학회 2017 대한수학회지 Vol.54 No.5
Assume that $M$ is an $R$-module where $R$ is a commutative ring. A proper submodule $N$ of $M$ is called a weakly $2$-absorbing primary submodule of $M $ if $0\neq abm\in N$ for any $a,b\in R$ and $m\in M$, then $ab\in (N:M)$ or $am\in M\mbox{-rad}(N)$ or $bm\in M\mbox{-rad}(N).$ In this paper, we extended the concept of weakly $2$-absorbing primary ideals of commutative rings to weakly $2$-absorbing primary submodules of modules. Among many results, we show that if $N$ is a weakly $2$-absorbing primary submodule of $ M$ and it satisfies certain condition $0\neq I_{1}I_{2}K\subseteq N$ for some ideals $I_{1},I_{2}$ of $R$ and submodule $K$ of $M$, then $ I_{1}I_{2}\subseteq (N:M)$ or $I_{1}K\subseteq M\mbox{-rad}(N)$ or $ I_{2}K\subseteq M\mbox{-rad}(N)$.
ScienceON연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
