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SOME RESULTS ON FUZZY COSETS AND HOMOMORPHISMS OF N-GROUPS
Satyanarayana, Bhavanari,Syam Prasad, Kuncaham,Venkata Pradeep Kumar, Tumurukora,Thota, Srinivas The Youngnam Mathematical Society Korea 2007 East Asian mathematical journal Vol.23 No.1
In this paper we consider the fuzzy ideals of N-group G where N is a nearring. We introduce fuzzy ideal ${\theta}_{\mu}$ of the quotient N-group $G/{\mu}$ with respect to a fuzzy ideal $\mu$ of G. If $\mu$ is a fuzzy ideal of G and $\theta$ a fuzzy ideal of $G/{\mu}$ such that ${\theta}_{\mu}\;{\subseteq}\;{\theta}$ and ${\theta}_{\mu}(0)\;=\;{\theta}(0)$, then corresponding ${\sigma}_{\theta}\;:\;G\;{\rightarrow}\;[0,\;1]$ is defined and proved that it is a fuzzy ideal of G such that ${\mu}\;{\subseteq}\;{\sigma}_{\theta}$ and ${\mu}(0)\;=\;{\sigma}_{\theta}(0)$. We also prove some results on homomorphisms and fuzzy ideals of N-groups. The image and preimage of fuzzy ideal $\mu$ under N-group homomorphism were studied. Finally it is obtained that if $f\;:\;G\;{\rightarrow}\;G^1$ is an epimorphism of N-groups, then there is an order preserving bijection between the fuzzy ideals of $G^1$ and the fuzzy ideals of G that are constant on kerf. Some examples related to these concepts were illustrated.
Ultrathin titania coating for high-temperature stable SiO<sub>2</sub>/Pt nanocatalysts
Satyanarayana Reddy, A.,Kim, Sunmi,Young Jeong, Hu,Jin, Sookyoung,Qadir, Kamran,Jung, Kyoungmin,Ho Jung, Chan,Yeul Yun, Jung,Yeong Cheon, Jae,Yang, Jun-Mo,Hoon Joo, Sang,Terasaki, Osamu,Young Park, Je Royal Society of Chemistry 2011 Chemical communications Vol.47 No.29
<P>The facile synthesis of silica supported platinum nanoparticles with ultrathin titania coating to enhance metal–support interactions suitable for high temperature reactions is reported, as thermal and structure stability of metal nanoparticles is important for catalytic reactions.</P> <P>Graphic Abstract</P><P>Synthesis of supported platinum nanoparticles with ultrathin titania coating for high thermal stability and enhanced metal–support interactions is reported. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c1cc12022k'> </P>
Linearly independent elements in $N$-groups with finite Goldie dimension
Satyanarayana Bhavanari,Syam Prasad Kuncham 대한수학회 2005 대한수학회보 Vol.42 No.3
The concepts linearly independent elements and {itu-linearly independent elements} in an N-group G where Nis a near-ring, were introduced and studied. A few importantresults in the theory of vector spaces were generalized to N-groups.
Ideals and direct product of zero square rings
Satyanarayana Bhavanari,Goldoza Lungisile,Nagaraju Dasari 영남수학회 2008 East Asian mathematical journal Vol.24 No.4
We consider associative ring R (not necessarily commutative). In this paper the concepts: zero square ring of type-1/type-2, zero square ideal of type-1/type-2, zero square dimension of a ring R were introduced and obtained several important results. Finally, some relations between the zero square dimension of the direct sum of finite number of rings; and the sum of the zero square dimension of individual rings; were obtained. Necessary examples were provided.
ON FUZZY DIMENSION OF N-GROUPS WITH DCC ON IDEALS
Bhavanari, Satyanarayana,Kuncham, Syam Prasad,Tumurukota, Venkata Pradeep Kumar The Youngnam Mathematical Society Korea 2005 East Asian mathematical journal Vol.21 No.2
In this paper we consider the fuzzy ideals of N-group G where N is a near-ring. We introduce the concepts: minimal elements, fuzzy linearly independent elements, and fuzzy basis of an N-group G and obtained fundamental related results.
Effective suppression of humidity in Lithium ion based CO2 Sensor
L Satyanarayana,Jinseong Park 한국물리학회 2005 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.47 No.6
Two sets of uni-auxiliary and bi-auxiliary phase Lithium ion conducting electrolyte sensors were prepared and investigated for CO2 gas. The uni-auxiliary Li2CO3 sensor showed a high emf, but a sub-Nernstian behavior at 500C operating temperature. Also, the response and the recovery characteristic of the sensor deteriorated very much in the presence of water vapor. An addition of 10 mol% SrCO3 to 90 mol% Li2CO3 produced a consistent behavior in terms of the emf/decade and the absolute emf profiles. The sensor exhibited excellent Nernstian behavior, and the emf was found to be linear in the logarithm of the CO2 partial pressure in the test range of 500 . 5000 ppm. Moreover, the effect of water vapor was fully nullified at all lower concentrations of CO2 below 2000 ppm
Influence of ceramic oxide materials on lithium based potentiometric CO2 sensors
L. Satyanarayana,Guang Hu Jin,노효섭,이운영,Jin Seong Park 한국물리학회 2007 Current Applied Physics Vol.7 No.6
In these potentiometric sensors, a mixed binary carbonate sensing material consisting of 90 mol% Li2CO3 and 10 mol% BaCO 3 wasmodied by adding ceramic oxide materials such as SiO2,B2O3,La2O3,Bi2O3, CeO2 and In 2O3 in dierent mol% concentrations. Varioussensors mixed with these external oxides have shown good performance at operating temperatures below 300.C. Scanning electronmicroscopy reveals that a glassy sensing phase is formed in the sensing bi-carbonate by the addition of ceramic oxides and sinteredat 600.C for 1 h. The sensor mixed with SiO2:B2O3:Bi2O3 and followed a fair Nernstian behavior with aDEMF/dec value of. 48.18 at as low as 150.C. The decrease in operating temperatureis attributed to the enhanced lithium ion migration through the glassy sensing phase of the sensing electrode.