A Comparison of using Bio-Diesel and the Normal Diesel in Operation of Diesel Engines
In this study, the experiment was conducted using a diesel engine single cylinder four-stroke direct injection, air-cooled. Used in the experiment are four types of fuel: pure diesel, mixture of methanol and diesel by methanol 8% -16% and 24%, three levels of speeds 1500, 2000 and 2500 rpm .we studied in this research The engine performance parameters which included, thermal efficiency, brake specific fuel consumption, noise level ,friction power.
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A mathematical model by using bivariate normal distribution for changes in prolactin and cortisol levels in women undergoing in vitro fertilization and embryo transfer treatment
The normal distribution is a very commonly occurring continuous probability distribution. Normal distributions are extremely important and are used in the natural and sciences related real valued random variables whose distributions are not really known. In this paper the Bivariate Normal distribution is used and the probability density functions for the exponent term q(x,y) are find out. Here Prolactin and Cortisol are considered as bivariate normal and the typical contour for the corresponding quadratic function q(x,y) for the Acupuncture- Prolactin and Cortisol, Control – Prolactin and Cortisol, Prolactin – Acupuncture and Control and Cortisol – Acupuncture and Control cases in the In Vitro Fertilization and Embryo Transfer Treatment days is given in the application part. The PDF obtained for the four cases in the In Vitro Fertilization and Embryo Transfer treatment is a part of an ellipse with the positive correlation.
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A Therapeutic Approach for Study of Anti-tubercular Activity of Selected Medicinal Plants using NRA Methods
The present investigation was carried out to determine the possible bioactive components of the several medicinal plants for their Antimycobactrial activity and GC-MS. The chemical compositions of the ethanol and methanol extracts of the five plants and five essential oil plants were investigated using Hewlett-Packard Gas chromatography–Mass spectrometry, while the mass spectra of the compounds found in the extract was matched with the Wiley and National Institute of Standards and Technology (NIST) library or with the published mass spectra. Maximum activity was observed in alcoholic extracts of Tinospora cordifolia, Sida rhombifolia, Morinda citrifolia, Pithecellobium dulce, Allium sativum,, Pinus roxburghii against Mycobacterium tuberculosis and minimum Nardostachys jatamansi, ,Trachyspermum ammi, Lantana camara against Mycobacterium tuberculosis.
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Ag percent effect on microstructure and tribological performance of Clay-Ag composite films
Clay–Ag composite films were based on polyethylene, 0.75 degree and master batch which were produced under the temperature 195-165 degrees Celsius, at 50rpm speed. The morphology and microstructure of the composite films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and transmission electron microscopy (TEM). The tribological behavior was investigated by using a ball-on-disk tribometer in vacuum and in humid air. The crystalline Ag phase dispersed in amorphous Clay and the size of the crystalline Ag increased with the Ag content in the films. The mechanical and tribological properties of Clay–Ag composite films varied with the Ag content. At the content of 42 at %Ag, the composite film had the highest microhardness and elastic modulus. The amorphous Clay in the Clay–Ag 42% composite film made the main function during wear, so the film showed the lowest friction coefficient. The friction coefficients of the Clay–Ag composite films in vacuum were lower and more stable than those in humid air, but the environmental sensitivity of tribological behavior decreased obviously due to the addition of Ag in the films.
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An Empirical Investigation on Role of Human Capital on Foreign Direct investment: The Lucas Paradox Revisited
This paper investigates the role of human capital for the difference of FDI inflows between rich and poor countries “Lucas Paradox.” We conduct a GMM analysis of 50 developed and developing countries over1980-2005. We have utilized a newly developed index that is the focused on weighted HC stock to examine the effects of HC on FDI inflows. Our main finding is that the existence a higher level of HC in developed countries is one of the explanation for the gap of FDI inflows among developed and developing countries. This finding is in line with the Lucas Paradox.
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An Integrated Vendor-Buyer Investment Model for Reducing the Defect Rate with Delay in Payments
In modern competitive business environment, it is essential to continuously work on improving the performance of their supply chains with high customer satisfaction. Inventory management is affected by the imperfect production process. So it is contemporary for the vendor to improve quality of the product/service where customer’s loyalty will be the by-product. In this paper vendor invests money to reduce the number of defective items produced. Also in many transactions regarding selling and buying, a specified delay of payment is offered or accepted by the vendor. This can be viewed as a kind of discount and has potential consequences for the order size. Differently from the existing literature this paper extends the model with the inclusion of stochastic demand, stock out cost and delay in payments. Numerical studies explore the beneficial of the vendor investment.
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Analysis of Vibrational Spectra of 2-Amino-5-Bromo-4-Methylpyridine Based on Ab Initio and Density Functional Theory Calculations
Theoretical studies were conducted on the molecular structure and vibrational spectra of 2-amino-5-bromo-4-methylpyridine (ABMP). The FT-IR and FT-Raman spectra of ABMP were recorded in the solid phase. The molecular geometry and vibrational frequencies of ABMP in the ground state have been calculated by using the ab initio HF (Hartree-Fock) /6-311+G(d,p) and density functional methods (B3LYP) invoking 6-311+G(d,p)/6-311++G(d,p) basis set. The optimized geometric bond lengths and bond angles obtained by HF method show best agreement with the experimental values. Comparison of the observed fundamental vibrational frequencies of ABMP with calculated results by HF and density functional methods indicates that B3LYP is superior to the scaled Hartree-Fock approach for molecular vibrational problems. The difference between the observed and scaled wave number values of most of the fundamentals is very small. A detailed interpretation of the FT-IR and FT- Raman, NMR spectra of ABMP was also reported. NBO analysis has been performed in order to elucidate charge transfers or conjugative interaction, the intra-molecule rehybridization and delocalization of electron density within the molecule. UV–vis spectrum of the compound was recorded and the electronic properties, such as HOMO and LUMO energies, were performed by time dependent density functional theory (TD-DFT) approach. Finally the calculations results were applied to simulated infrared and Raman spectra of the title compound which show good agreement with observed spectra.
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Approach on the liquid annual throughputs of the hydrometric station of three rivers of the area of Mascara (Algeria)
This research is the analysis of the erosion and degradation of specific annual average watershed feeding the old dam seriously threatened by the phenomenon of siltation of western Algeria and covering area of 7685 Km2 various lithological formations. The importance of suspended sediment resulting in a rapid filling of the reservoir, significantly reducing the life of the dam. Discontinuity or absence of vegetation cover promotes surface runoff due to the high rainfall intensity. It seems clear that the evolution of the siltation dam is given as a function of several parameters that are geology, lithology and flow regime and vegetation cover. It is therefore important that the rainfall intensity and violence of flood relief very little vegetation cover causes very pronounced erosion in the watershed of western Algeria. For this purpose the objective of this work emphasizes Galton's law for estimating the different flood several years Used the law significantly reduces the sampling error. This allows us a more accurate estimate of the probability level observations. Keywords: erosion, hydrology, flood, statistics, Mascara, Algeria
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Assessment of environmental impact identification and mitigation measures in urban developments, Kenya
Environmental Impact Assessment process is vital in preventing adverse environmental impacts thus ensuring sustainable development. However, while EIA has been embedded within the development planning processes in many countries, quality EIA reports have not been produced in developing countries. Despite EIA being carried out on most development projects there still remains the challenge on the quality of EIA reports that are being written by environmental experts. It’s for this reason that the study evaluates the effectiveness of mitigation in Kenya’s EIA process for selected urban projects in Kisumu City to investigate the quality of EIA reports in terms of impact identification and proposed mitigation measures, the level of implementation of mitigation measures for the selected projects and the utility of EIA mitigation conceptual model in enhancing the effectiveness of mitigation in EIA. A cross-sectional design was adopted to collect and analyse data. Data from thirty (30) EIA reports conducted between 1999 and 2016 were purposively sampled to provide information about the quality of EIA reports in terms of environmental impact identification and proposed mitigation measures. The modified EIS quality review package and mitigation guidelines were used to gather and grade the quality of EIA reports in terms of the impacts and mitigation measures. Regarding the practical implementation of mitigation measures proposed in the reviewed EIA reports, three purposively selected EIA projects, environmental managers, local communities surrounding them and field observations provided the required data. The key findings of this study reveal that the deficiency in the EIA reports quality is attributed to a number of factors. These factors include, Inadequate baseline data and access to data, inadequate time given for EIA study, attitude of consultants and proponents, the commercial interest of consultants and proponents, a lack of EIA experts, lack of adequate funds, weak TORs, and lack of adequate EIA stakeholders. The results also reveal that time and financial resources are among the main driving forces of EIA Quality. The study concludes that lack of adequate funds is the main factor affecting the quality of EIA reports in Kisumu City. The study recommends that improvements to impact identification in EIA reports will enhance the mitigation measures proposed. It’s also clear from the findings that when the impacts are poorly identified, subsequent mitigation measures proposed are also poor. In cases where the EIA reports were graded unsatisfactory in terms of identified impacts, the proposed mitigation measures were equally unsatisfactory as they addressed wrong impacts.
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Biological spectrum of the flora of Ajmer sand dunes
Analysis of life forms of the vegetation of Ajmer (Rajasthan) was carried out based on the data collected from the field. The biological spectrum of Ajmer (covering different habitats in and around Ajmer) represent 7% phanerophytes, 10% nanophanerophytes, 16% chamaephytes and 20% hemiscryptophytes, geophytes are 6% while therophytes forms the largest class of total flora. Lianas are a poorly represented class with 2% of the total flora. According to life form classification, the plant communities are regarded as therophytic, which is a characteristic feature of vegetation in desert and semi desert condition of Rajasthan.
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