Archives-December 

The world’s entrance into the computer age along with web has certainly had a profound impact on our society. With increase in purchasing power, mass production, lesser costs, exponential growth in computer technology and population growth were one of the main drivers of increases in global warming and climate change. The onset of Information age is associated with the digital revolution, just as the Industrial Revolution marked the information age. Computerization of modern society has brought convenience to all aspects of human life. It seems evident that there will be both positive and negative effects on society and global environment. Computers have added a new source of heat generation and emission into environment. In spite of recent studies indicating possible threats to global warming and global climate, there is no long term data available on the amount of heat generated, emitted and dissipated into environment by computer monitors. The scope of this research work is to experimentally measure the heat generated by computer monitors during on (sleep/Idle) mode and working mode. For this research work four decimal digit temperature measurement test instrument was designed and exclusively fabricated. A special air locked container was also fabricated for conducting heat emission experiments on computer monitors. Population and computers projections for India, China, USA and the whole world were also included in this research work for 2050. An attempt is made to indicate amount of heat generated, emitted and dissipated into environment by India, China, USA and entire world by computer monitors at present and projections for 2050.

The research aimed is to analyze the relation among organizational culture, work satisfaction, motivation toward organizational commitment and performance. We took samples of respondent from affiliates of AALI Plantation in Indonesia. The analysis tool is Structural Equation Model. The result showed that organizational culture influence job satisfaction and organizational performance directly, job satisfaction affects motivation and performance, and motivation and organizational commitment have significant relationship

The present research is motivated by the changing roles of continuous improvement programs as a result of changes in organizational environments. Focus on the changing demands made on organizational infrastructure for continuous improvement program is under consideration. Visual process control is applied in a financial section of a company. The success of Six Sigma programs depends to a large extent on motivating employees, training them and coordinating their efforts in projects as well as implementing changes resulting from projects. Managers are interviewed (Total 12) and on the basis of score the improvement are analyzed.

This work deals with the vibrational spectroscopy of Hexafluorobenzene (HFB) by means of quantum chemical calculations. The FTIR and FT-Raman spectra were measured in the condensed state. The fundamental vibrational frequencies and intensity of vibrational bands were evaluated using density functional theory (DFT) with the standard B3LYP / 6-311+G** basis set combinations, and was scaled using various scale factors which yields a good agreement between observed and calculated frequencies. The vibrational spectra were interpreted with the aid of normal coordinate analysis based on scaled quantum mechanical force field. The results of the calculations were applied to simulated infrared and Raman spectra of the title compound, which showed excellent agreement with the observed spectra.

Schiff bases are typically synthesized by the condensation of amines and a carbonyl bearing compounds. Schiff bases are important intermediates for the synthesis of various bioactive compounds.These compounds and their metal complexes are very important as catalysts in various biological systems, polymers, dyes and medicinal and pharmaceutical fields. Furthermore, they are reported to show a variety of biological activities including antibacterial and antifungal activities.

In order to assess the antioxidant activity of the basidiocarp of mushrooms, viz., Boletus edulis, Ganodrema tsugae and Micoporus xanthopus., an invitro investigation was carried out. The result of the study revealed that the enzymatic antioxidants like catalase and peroxidase were recorded maximally in the basidiocarp of the fungus M. xanthopus (34.190 U mg^-1 and 116.53 U mg^-1 enzyme protein) and minimally in G. tsugae and B. edulis (9.602 U mg^-1 and 66.59 U mg?1 enzyme protein). The non-enzymatic antioxidants like ascorbic acid (vitamin C) and tocopherol (vitamin E) were much pronounced in B. edulis basidiocarp (17.15 µg^-1 and 56.13 µg g^-1 ) compared to M. xanthopus and G. tsugae (17.15 µg^-1 and 26.07 µg g^-1 ) respectively.

Phyllanthus niruri L belongs to family Euphorbiaceae is a field weed. Effect of aqueous and ethanolic extract of P.niruri was investigated on in vitro human blood platelet aggregation in terms of PT (prothrombin time) and APTT (activated partial thromboplastin time). In PT activity was observed maximum in aqueous extracts of aerial parts at 1000 µgmL-1, which was 28 times higher than the standard value. Among the plant parts, aerial parts gave better activity than roots. APTT activity was higher in aqueous extract of roots at 750 µgmL-1 and aerial parts at 1000 µgmL-1 that was 10.75 and 9 times higher, respectively over the standard values. The study revealed that P. niruri has potent anti-platelet aggregation properties.

The series of spinnel ferrite substance with chemical composition Cu(1-x)ZnxFe2O4 where 0.365

With the digital technology getting inexpensive and popular, there has been a tremendous increase in the volume and availability of audio through cable and Internet such as music on demand. Currently several web sites host audio and provide users with the facility to browse and watch online audio clips. Due to enhancement in technology in the recent years lots of music is available as handy media for various devices. Thus there is an urgent need of analyzing music for storage, indexing and retrieval. In this paper we aimed at classifying music on the basis of their audios. We have identified three audios for this purpose: happy, angry and sad. These cognitive styles have few things in common. Identifying and extracting these features is a challenging problem. On the basis of our observations and literature review we have identified the eight features namely energy, entropy, zero-crossing rate, spectral rolloff, spectral centroid, spectral flux, RMS of signal and MFCC. After extracting features we have used neural network based training for classification. We have used Artificial Neural Content Techniques and neural net tool for this purpose. We have populated a database of 150 songs consisting of 50 songs of each category. In this population 90 songs are used for training set and 60 for testing. The experimental results demonstrate the effectiveness of our classification system. We have obtained an overall accuracy of nearly 75%. The complete system is developed in ARTIFICIAL NEURAL NETWORK of the system.

Ditch cutting samples of organic rich intervals (Nkporo, Mamu, Nsukka and Imo formations) in Anambra basin from Oda River-1 and Anambra River-2 wells were subjected to Total Organic Carbon (TOC) and Rock-eval Pyrolysis analyses to evaluate their organic matter richness, organic matter type and thermal maturity. The samples comprised of shales, siltstones, lignites and claystones. The shales are dark coloured and moderately indurated with carbonaceous silt and dolomite stringers. The siltstones are fine to medium grained and dark grey to brown in colour. The lignites are grey to black coloured, medium grained, moderately hard to brittle and occurred as stringers. The claystones are grey coloured and medium grained. The TOC and Pyrolysis derived S2 results of the samples are 0.98-4.71 wt. % and 0.12-5.39 mg/g, respectively indicating poor to excellent source rocks. Hydrogen Index, Tmax, Genetic potential and measured vitrinite reflectance are 9-114 mg/g, 424 -471oC, 0.13-5.67 mg/g rock, and 0.41-0.88, respectively. Rock-eval data from the two wells indicated predominantly kerogen type IV kerogen with subordinate gas prone kerogen type III organic matter. Mamu Formation samples dominated kerogen type III and were abundant in Anambra River-2 well. Most samples from Anambra River-2 well are thermally mature while fewer samples from Oda River-1 well are thermally mature for hydrocarbon generation. However, majority of kerogen type III in Anambra River-2 well contained inert carbon.