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Nagaraju, G.,Ko, Y. H.,Cha, S. M.,Im, S. H.,Yu, J. S. Springer Science + Business Media 2016 NANO RESEARCH Vol.9 No.5
<P>Hierarchical core-shell-like MnO2 nanostructures (NSs) were used to anchor MnO2 hexagonal nanoplate arrays (HNPAs) on carbon cloth (CC) fibers. The NSs were prepared by a novel one-step electrochemical deposition method. Under an external cathodic voltage of -2.0 V for 30 min, hierarchical core-shell-like MnO2-NS-decorated MnO2 HNPAs (MnO2 NSs@MnO2 HNPAs) were uniformly grown on CC with reliable adhesion. The phase purity and morphological properties of the samples were characterized by various physicochemical techniques. At a constant external cathodic voltage, growth of MnO2 NSs@MnO2 HNPAs on CC was carried for different time periods. When utilized as a flexible, robust, and binder-free electrode for pseudocapacitors, the hierarchical core-shell-like MnO2 NSs@MnO2 HNPAs on CC showed clearly enhanced electrochemical properties in 1 M Na2SO4 electrolyte solution. The results indicate that the MnO2 NSs@MnO2 HNPAs on CC have a maximum specific capacitance of 244.54 F/g at a current density of 0.5 A/g with excellent cycling stability compared to that of bare MnO2 HNPAs on CC (112.1 F/g at 0.5 A/g current density). We believe that the superior charge storage performance of the pseudocapacitive electrode can be mainly attributed to the hierarchical MnO2 NSs@MnO2 HNPAs building blocks that have a large specific surface area, offering additional electroactive sites for efficient electrochemical reactions. The facile and single-step approach to growth of hierarchical pseudocapacitive materials on textile based electrodes opens up the possibility for the fabrication of high-performance flexible energy storage devices.</P>
Fuzzy Location Algorithm for Cross-Country and Evolving Faults in EHV Transmission Line
A. Naresh Kumar,M. Chakravarthy,M. Suresh Kumar,M. Nagaraju,M. Ramesha,Bharathi Gururaj,Elemasetty Uday Kiran 한국지능시스템학회 2023 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.23 No.2
Fault protection is an important issue as it adversely affects the performance of conventional relays, particularly for cross-country and evolving faults in transmission lines. In this paper, a novel fault location algorithm for cross-country and evolving faults in extra high voltage transmission (EHVT) line using the fuzzy expert system (FES) is presented. The algorithm is based on the impedance values of relaying terminal fundamental component. In addition, the proposed FES is independent of communication links. It was designed using input variables via the IF-THEN rules and developed with the fuzzy MAMDANI structure. A triangular membership function was used to estimate the degree of inputs. MATLAB software was used to evaluate the error in the fault location for a 100-km, 400-kV, 50-Hz EHVT line. The FES algorithm yielded precise values. The test results were independent of the fault inception time, location, and type. The experimental results illustrate that the FES performed better than the other algorithms.
Bose L. K.,Pradhan S. K.,Mohanty A.,Nagaraju M. The Korean Society of Crop Science 2005 Korean journal of crop science Vol.50 No.4
A study on genetic variability and association of yield attributing characters with grain yield was carried out using 35 deepwater rice genotypes. High genotypic co-efficient of variation (GCV) was observed for plot yield, $EBT/m^2$, plant height and days to $50\%$ flowering (DFF). For all the traits, estimates of the phenotypic co-efficient of variation (PCV) were higher than GCV, indicating presence of environmental influence. High heritability and genetic advance was observed for plot yield, $EBT/m^2$ and plant height. Plot yield had significant positive association with test weight, $EBT/m^2$ and DFF. However, test weight had the maximum direct effect on grain yield
L. K. Bose,S. K. Pradhan,A. Mohanty,M. Nagaraju 韓國作物學會 2005 Korean journal of crop science Vol.50 No.4
A study on genetic variability and association of yield attributing characters with grain yield was carried out using 35 deepwater rice genotypes. High genotypic co-efficient of variation (GCV) was observed for plot yield, EBT/m2 , plant height and days to 50~% flowering (DFF). For all the traits, estimates of the phenotypic co-efficient of variation (PCV) were higher than GCV, indicating presence of environmental influence. High heritability and genetic advance was observed for plot yield, EBT/m2 and plant height. Plot yield had significant positive association with test weight, EBT/m2 and DFF. However, test weight had the maximum direct effect on grain yield
M. Rekha,N. Nagaraju,H.R. Manjunath 한국공업화학회 2013 Journal of Industrial and Engineering Chemistry Vol.19 No.1
Mn/Al2O3 and Mn/ZrO2 were prepared by precipitation method. Their catalytic activity was investigated in the synthesis of biologically important bis(indolyl)methanes via, a condensation reaction between an indole and different aldehydes. The materials exhibited excellent catalytic activity (TOF in the range 180–380 h1) and produced the expected product in good yield and selectivity. Isolation of product from the reaction mixture was simple and neat. The catalysts were found to be recyclable and used up to five cycles without any loss in their catalytic activity. Mn/ZrO2 was also found to be a better catalyst than Mn/Al2O3 in terms of isolated yield of the product and recyclability. Mn/ZrO2 catalyst was found to be selective for aldehydes and not for ketones. In order to investigate the relationship between the catalytic activity and physico-chemical properties, Mn/Al2O3 and Mn/ZrO2 were characterized for their surface and bulk properties by PXRD, BET, TPD-NH3 and SEM techniques. A good correlation between the catalytic activity of the materials and the concentration of the acid sites with intermediate strength was observed. Mn/ZrO2 exhibited rod like structure. This material was found to be a general catalyst for the synthesis of a number of bis(indolyl)methane derivatives with good yield and selectivity.
Study on Splicing Performance of Different Types of Staple Yarns
Das, A.,Ishtiaque, S.M.,Nagaraju, V. The Korean Fiber Society 2004 Fibers and polymers Vol.5 No.3
The present paper reports the detailed study on the splicing behavior of viscose staple fiber yarns made from ring, rotor, friction and air-jet spinning technologies. The linear density of all the yearns was kept constant at 29.5 tex. The splicing parameters like splicing pressure and duration of the splicing were taken as variables. Three levels of splicing pressure at constant splicing duration and three levels of splicing durations at constant splicing pressure were considered. Splices were introduced at all these levels for the four different technologies. These splices were tested for their tensile properties and the properties of splices were evaluated in terms of retained splice strength (RSS) and splice break ratio (SBR). The splice photographs were taken and splices were analyzed for their structure and for diameter profile along the length of the splice.
Bose, L.K.,Mohanty, A.,Kar, M.K.,Nagaraju, M. The Korean Society of Crop Science 2004 Korean journal of crop science Vol.49 No.2
Twenty-one lowland rice genotypes were evaluated for their stability parameters with respect to grain yield in a multi locational trial at five different sites of Eastern India viz. CRRI, Cuttack (Orissa); OUAT, Bhubaneswar (Orissa); CRS, Masodha (UP); RAU, Pusa (Bihar) and RARS, North Lakhimpur (Assam). Pooled analysis of variance reflects existence of genotype x environment interactions and contribution of both linear and nonlinear components to genotype (G) x environment (E) interactions. Through stability parameter analysis it was found that Rayda $\textrm{B}_3$, CR 778-95 and CR 661-236 were suitable for over all environments where as Sabita, OR 1334-16 and OR 1358-RGA-4 were suitable for rich environments. PSR 1209-2-3-2, CR 780-1937, Ambika, OR 877-ST-4-2 and CR 662-2211 were identified for poor environments.
L. K. Bose,A. Mohanty,M. K. Kar,M. Nagaraju 韓國作物學會 2004 Korean journal of crop science Vol.49 No.2
Twenty-one lowland rice genotypes were evaluated for their stability parameters with respect to grain yield in a multi locational trial at five different sites of Eastern India viz. CRRI, Cuttack (Orissa); OUAT, Bhubaneswar (Orissa); CRS, Masodha (UP); RAU, Pusa (Bihar) and RARS, North Lakhimpur (Assam). Pooled analysis of variance reflects existence of genotype x environment interactions and contribution of both linear and nonlinear components to genotype (G) x environment (E) interactions. Through stability parameter analysis it was found that Rayda ~textrmB3 , CR 778-95 and CR 661-236 were suitable for over all environments where as Sabita, OR 1334-16 and OR 1358-RGA-4 were suitable for rich environments. PSR 1209-2-3-2, CR 780-1937, Ambika, OR 877-ST-4-2 and CR 662-2211 were identified for poor environments.
L. K. Bose,A. Mohanty,M. K. Kar,M. Nagaraju 한국작물학회 2004 Korean journal of crop science Vol.49 No.3
Twenty-one lowland rice genotypes were evaluated for their stability parameters with respect to grain yield in a multi locational trial at five different sites of Eastern India viz. CRRI, Cuttack (Orissa); OUAT, Bhubaneswar (Orissa); CRS, Masodha (UP); RAU, Pusa (Bihar) and RARS, North Lakhimpur (Assam). Pooled analysis of variance reflects existence of genotype x environment interactions and contribution of both linear and non-linear components to genotype x environment interactions. Through stability parameter analysis (Eberhart and Russell, 1966) it was found that Rayda B3, CR 778-95 and CR 661-236 were suitable for over all environments where as Sabita, OR 1334-16 and OR 1358-RGA-4 were suitable for rich environments. PSR 1209-2-3-2, CR 780-1937, Ambika, OR 877-ST-4-2 and CR 662-2211 were identified for poor environments.