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This paper introduces a new type of labeling called separation cordial labeling. A separation cordial labeling of graph G is a bijection f from V to {1,2,… ,|V|} such that each edge uv is assigned the label 1 if f(u) + f(v) is an odd number and label 0 if f(u) + f(v) is an even number. Then the number of edges labeled 0 and the number of edges labeled 1 differ by at most 1. If a graph has a separation cordial labeling, then it is called separation cordial graph. Here, the class? Pl?_n ( n ? 5), ?Pl?_(m,n) (m,n ? 3) of planar graphs, full binary tree, the star graph? K?_(1,q), the complete bipartite graph K_(m ,n), path P_n, the cycle? C?_n, are discussed and found to be separation cordial. Also, found that complete graph K_n is not separation cordial for, n ? 4.

The mathematical model CFD, presented in this study, which was designed to evaluate the performance and characteristics of STPP in Baghdad city (Iraq) with the compound parabolic concentrator (CPC) as a variant of the solar collector. For the purpose of performance analysis and simulations, many expensive and complex programs are usually used, but these tools are directed to perform initial assessments of performance efficiency and feasibility of the project in terms of the output temperature of the solar field and output power generation. To study the solar stations properly, accurate information about the weather, climate and work environment should be available, as well as extensive data on the solar radiation values of the geographical area on which the project will be set up.

A CFD analysis was done to numerically study the heat transfer characteristics of an oil cooler under laminar flow conditions with varying Reynolds number from 250 to 2400 with ISOVG46 Turbinol on tube side and water on shell side for different flow rates. Simulated results of Nusselt number and friction factor are in good agreement with the available experimental results and with the Sieder and Tate equation for plain tube. Results show that the strip inserts led to a higher heat transfer rates over the plain tube with increase in Nusselt number, friction factor and over all enhancement ratios.

In this paper, a testable design with good fault identification capability is used for analysis and diagnosis of stuck-at and bridging faults in Exclusive-OR Sum of Product Reed-Muller canonical circuits, independent of the function for a given number of inputs. Factors of identifiability and distinguishability have been defined and determined. Further, a compact method of representing the circuit outputs has been adopted for ease of tabulation and comparison. Simulations of Single stuck-at, Double stuck-at, OR-bridging and AND-bridging faults for a few random functions have been carried out through MATLAB coding. From the test results, it was found that the fault detection for the set of random functions was more than 95% for most of the functions except few cases, with just n+5 test vectors compared to 2n test vectors required for conventional testing. The location of the fault can also be diagnosed through the output sets.

The conventional electric grid is continuously shifted towards technological transformation of Smart Grid. The gradually increasing electricity cost, inadequate infrastructure, electricity losses at various stages, carbon footprint and climate changes are some of the major player for paradigm shift towards smart grid. The smart grid is next generation grid network that promises advantage such as decentralized control, digitalization, flexibility, intelligence, resilience, sustainability, and customization. In this article, we are put forth some of pioneer development and challenges faced in the smart grid environment. This article also discusses the smart grid development regarding with Indian perspectives.

In modern conditions of globalization and development of information technology, information processing activities have come to be seen as essential to the success of organizations. Information is not only an asset, it is also crucial to making key business decisions, whereas information systems is technology required for information processing. The application of information systems technology in businesses and organizations has opened up new possibilities for running and managing organizations, as well as improved management decision making. Improving information management practices is a key focus for many organizations, across both the public and private sectors. This is being driven by a range of factors, including a need to improve the efficiency of business processes, the demands of compliance regulations and the desire to deliver new services. In many cases, ‘information management’ has meant deploying new technology solutions, such as content or document management systems, data warehousing or portal applications. The work of managers in small and medium-sized enterprises is very information-intensive and the environment in which it is done is very information rich. But are managers able to exploit the wealth of information which surrounds them? And how can information be managed in organizations so that its potential for improving business performance and enhancing the competitiveness of these enterprises can be realized? The purpose of this paper is to give an understanding of the role that information systems have in decision making and to discuss the possibility of how managers in organizations can make the best use of information systems. This paper provides a framework of effective use of information systems and offers an alternate approach to investigate the impact that information systems technology have in management decision making.

The purpose of this study was to establish effects of strategic innovation management on competitiveness in the hotel industry. The specific objectives of the study were to; determine the effects of products and service innovations on competitiveness in hotel industry and establish effects of technology innovations on competitiveness in hotel industry. The study adopted Organizational Performance Model (OPI) developed by Kenya Institute of Management. OPI model was developed to promote organizational excellence and competitiveness in Kenya. The study adopted a descriptive survey design. The study was done in seven selected hotels in Nakuru town which were selected based on the ratings by international booking companies namely; Eagle Palace Hotel, Hotel Waterbuck, Midland Hotel, Merica Hotel, Emboita Hotel, Milele Resort, and Avenue Suites Hotel. Simple random sampling was used to select 44 support staff. Purposive sampling was used to select heads of departments in the five departments in each hotel giving a sample of 35 HODs and one overall manager in each hotel giving a sample of 7 managers hence an overall sample size of 86 respondents. Questionnaires and interviews were used to collect data. Questionnaires were used to collect data from the heads of department and support staff while interviews were used to collect data from the managers. The questionnaires were coded and analyzed using descriptive statistics, frequencies and percentages and inferential statistics using regression model to test the strength of association between the independent and dependent variables. The analysis was done with the aid of SPSS version 20. The data from the interviews were analyzed using content analysis. The findings and recommendations of the study are to provide empirical information to the government of Kenya in policy formulation for revamping the tourism sector. The findings are also to be of significance to the managers in the hotel industry in formulating innovative strategic plans. Finally, the study will contribute to the existing literature on strategic management practices in the hotel industry. The study established that product/ service innovations significantly predict competitiveness in the hotel industry (?1= 0.583, P= 0.00). Technology innovations significantly affect competitiveness in the hotel industry (?2= 0.098, P= 0.033). The researcher recommends that as the hotels innovate their products and services, they should design to meet the needs of particular target customers. The researcher recommends that; the hotel managers should place more emphasis on product and service innovation in order to remain competitive, investment in technology by the management to enhance their competitiveness, as the hotels innovate their products and services, they should design to meet the needs of particular target customers.

Polycrystalline bulk samples of La_0.5Ca_0.5MnO₃ were synthesized by solid state reaction method to explore their structural, electrical and magnetic properties. The Rietveld treatment of the X-Ray diffraction (XRD) profiles clearly indicated that the XRD patterns are well fitted with Orthorhombic structure. Raman peaks revealed their finger print positions and irreducible representations at the Brillouin zone center as presented by the group theory. Resistivity ‘?’ measurements revealed that  ? first increases as temperature ‘T’ decreases, exhibits a peak at T = Tp (Tp is the temperature corresponding to the resistivity peak), which is around 150 K in the present compound and then decreases as T is further reduced below Tc (Tc is the ferromagnetic curie temperature). For T > Tc, the resistivity shows activated transport as in an insulator. Magnetization study revealed that both a paramagnetic to ferromagnetic transition and an antiferromagnetic transition are involved. Possible mechanism contributing to these processes such as activated transport and Zener double exchange has been discussed.

The ligand 3,8-Dimethyl-5,6-benzo-4,7-diazadeca-3,7-diene-2,9-dione dioxime was synthesized by the condensation of o-phneylenediamine with diacety monoxime in a 1:2 mole ratio. It has been isolated in the solid state and characterized by CHN, IR, and NMR spectra. The ligand is a neutral compound and on complexation with metal ions loses one of the oxime protons with the concomitant formation of the intramolecular hydrogen bond. Six coordinate Co(III) complex, four coordinate square planar Ni(II) complex and five coordinate square pyramidal Cu(II) complex are synthesized by the reaction of the respective metal chlorides. All these complexes are characterized by infrared, electronic spectroscopy and conductivity measurements. Indirect evidence for the formation of intra-molecular hydrogen bond in these complexes is obtained by replacing the hydrogen bonded proton by the BF2 group by treating the complex [Cu (DO)(DOH) bzo) Cl] with BF3OEt2.

In this article neuro-fuzzy systems for active management of packet queue of the output port of a router of a telecommunication network are considered. The employment of this systems allows reduction of average packet delay in a queue of the output port of a router and lowering of the probability of packet discard.