Development of Electrical Insulating Surface on Copper-Nickel Alloy Wire used in Naval Instruments

The copper nickel alloy wire used in the Naval instr-uments is a 60/40 alloy wire with oxide layer on its surface for providing the necessary electrical insulation to 15 volts. The work carried out at Naval Chemical and Metall-urgical Laboratory consists of studying the oxide sur-faces produced on the alloy wire under various conditions of temperature, flow rate of oxygen and time. The temperatures studied were from 600°C to 1000°C at intervals of 50 degrees. The flow rate was varied from 1 litre per minute to 10 litres per minu- tes The time of oxidation was from 1 minute to 20 minu- tes

Development of electrical insulating surface on copper-nickel alloy wire used in naval instruments

THE copper-nickel alloy wire used for close-wound resistors in Naval instruments is an oxidized wire having 0.001 cm thick oxide which offers electrical insulation to a potential difference of about 15 volts. At present, the oxidized wire used by the Navy is of imported origin. A problem has, therefore, arisen to develop a process for producing the oxidized wire locally. Work was, therefore, taken in Naval Chemical and Metallurgical Laboratory, Bombay, to find the expe-rimental conditions to produce the oxidized layer with requisite electrical insulation characteristics

AN EFFICIENT APPROACH FOR CONTENT BASED RETRIEVAL USING MULTI WAVELET AND HSV COLOR SPACE

This paper presents an approach for image retrieval by using multiwavelet and hsv color space. The HSV stands for the Hue, Saturation and Value, provides the perception representation according with human visual feature. The multiwavelets offer simultaneous orthogonality, symmetry and short support. In this paper, we have tested 140 images with 5 different categories. the experimental results show the better results interms of retrieval accuracy and computation complexity. The performance of this approach is measured and results are shown. Euclidean Distance and Canberra Distance are used as similarity measure in the proposed CBIR system

Estimation of Economic Returns to Soil and Water Conservation Research – An Ex Ante Analysis

The economic returns to investment made in soil and water conservation research have been analyzed. Technologies such as conservation furrow, residue incorporation have been found to be economically viable under farmers’ conditions. The study has covered four locations, viz. Agra and Varanasi in Uttar Pradesh, Kota in Rajasthan and Jabalpur in Madhya Pradesh. The economic surplus analysis has revealed that when adopted on a large scale, soil and water conservation technologies generate significant economic surplus as reflected in high NPV and BC ratio. The share of producer surplus has been found to be higher in the total economic surplus generated from technology adoption. Thus, investments in generation and transfer of soil and water conservation technologies have been found be justified in terms of economic benefits. However, various constraints that hamper adoption of these technologies are to be addressed so that the potential benefits could be realized by both farmer and consumer.Agricultural and Food Policy,

High Strength Aluminium Alloys with Emphasis on Scandium Addition

Aluminium is perhaps the youngest among the large group of metallic elements. It was first commercially produced in the year 1886 and rose in prominence meteorically to occupy today the second position in the total weight pro-duced, next only to steel. Aluminium is a silvery white ductile metal with a FCC structure. It has excellent electrical and thermal conductivity (next only to copper and silver). It has low density (2.7 g/cc) which gives it a very high specific modulus and strength. Pure aluminium is the soft metal with the modulus value of 70 GPa and the yield strength of about 40 MPa. One of the most important properties of aluminium is to form a thin protective oxide layer on the surface. This layer is tenacious, adherent, deformable and impervious to most corroding elements

Soil and Water Conservation Works through National Rural Employment Guarantee Scheme (NREGS) in Andhra Pradesh — An Analysis of Livelihood Impact

The impact of National Rural Employment Guarantee Scheme (NREGS) has been studied on rural livelihoods and the nature of soil and water conservation (SWC) works. NREGS is under implementation in almost all the rural districts of the country with the major objective of enhancing livelihoods through productive works. Rajasthan, Andhra Pradesh and Madhya Pradesh are the three states leading in scheme implementation with a large number of works, expenditure and employment. In Andhra Pradesh, soil and water conservation (SWC) works have accounted for over 80 per cent. The share of labour wages under the scheme has been 80 per cent with only 20 per cent for material, which is well within the prescribed norm of 40 per cent for the latter. The field study in the Ananthapur district has indicated that almost two-thirds of the beneficiaries are farmers. The scheme has brought down the migration levels from about 27 per cent to only 7 per cent in the study villages. The linear regression function has brought out that the number of family members participating in the NREGS is significantly influenced by income from other sources, family size and landholding. The NREGS earnings are being used mainly for food, education and health security. Although the scheme provides opportunity for 100 days of wage guarantee, the actual average employment is only for 25 days per household. Ideally, this gap needs to be bridged at least in the distress districts. The study has observed that SWC works in agricultural lands, especially in the rainfed areas need to be continued. However, some works require structural modifications for a better impact.Agricultural and Food Policy,

Ion Adsorption Properties of Molybdenum Ferrocyanide, Tungsten Ferrocyanide & Multiloaded Molybdenum Ferrocyanide- Dowex Exchangers

800-80

Solvent Extraction Behaviour of Tris(oxalato)Co(III) with Long-chain Amines: Part II - Extraction from Hydrochloric & Sulphuric Acid Solutions

139-14

Data Anonymization Using Map Reduce on Cloud based A Scalable Two-Phase Top-Down Specialization

A large number of cloud services require users to impart` private data like electronic health records for data analysis or Mining, bringing privacy concerns. Anonymizing information sets through generalization to fulfill certain security prerequisites, for example, k-anonymity is a broadly utilized classification of protection safeguarding procedures At present, the scale of information in numerous cloud applications increments immensely as per the Big Data pattern, in this manner making it a test for normally utilized programming instruments to catch, oversee, and process such substantial scale information inside a bearable slipped by time. As an issue, it is a test for existing anonymization methodologies to accomplish security protection on security touchy extensive scale information sets because of their inadequacy of adaptability. In this paper, we propose a versatile two-stage top-down specialization (TDS) methodology to anonymize huge scale information sets utilizing the Map reduce schema on cloud. Experimental evaluation results demonstrate that with our approach, the scalability and efficiency of TDS can be significantly improved over existing approaches

FORMULATION AND IN VITRO EVALUATION OF ORLISTAT ORODISPERSIBLE TABLETS FOR ENHANCEMENT OF DISSOLUTION RATE

Objective: The aim of the present study was to formulate the oro dispersible tablets (ODTs) of Orlistat (OST) by direct compression technique using melt granulation method.Methods: Super disintegrants were used for the preparation of ODTs namely Crospovidone (CP), Croscarmellose sodium (CCS), Sodium starch glycolate (SSG). The powder mixture was subjected to pre compression evaluation like FTIR, Micromeritic, solubility studies and post-compression evaluation like friability, hardness, wetting time, dispersion time, disintegration time and in vitro dissolution rate.Results: FTIR studies confirmed that there was no chemical interaction between the drug and excipients. Micromeritic studies revealed that the powder blend has good flow ability. The results of hardness and friability complied with the official standards. The solid dispersions (SDs) prepared in OST to PEG 6000 ratio of 1:2 were showed good solubility than other SDs and it was selected for formulation development. It was evident from the results that the increase in super disintegrants concentration decreases the wetting, dispersion and disintegration times and CP showed the best results than other super disintegrating agents.Conclusion: The F4 formulation showed optimum drug release of 98.99 % at the end of 15 min when compared to the other formulations; it might be due to the presence of CP.Keywords: Direct compression, Melt granulation method, Orlistat, Orodispersible tablets, Polyethylene glycol.Â