Energy is one of the indispensable inputs for the existenceof human being in the earth.The socio-economic development, industrialization and civilization of any country depend on reliable energy supply. Great deal of effort is going on for energy generation mainly for finding eco-friendly energy sources. Natural gas, coal and petroleum products are facing pressure of rapid diminishing to meet this increasing energy demand. Meanwhile wind and hydro power have less possibility in Bangladesh. Nuclear power can be a huge source of clean energy. But huge investment with high end technology along sophisticated maintenance and danger of possible accident makes it very difficult and vulnerable for a country like Bangladesh. Solar shows good prospect. But piezoelectric materials, a potential source of power harnessing, can be utilized effectively in a developing country like ours. This paper outlines the electricity generation from highway using piezoelectric materials. Proposed Padma Bridge, linking the south-west of the country to northern and eastern regions, is the place for implementing the proposed project. All calculations are focused on this Bridge but this project can be implemented in any roadside too

Since the development of the information technology, there have been great changes in the functions and the nature of university library. This paper takes Tianjin Polytechnic University as a case study and attempts to make an investigation and analysis on the service quality of library by questionnaire. Based on SPSS 16.0 statistical analysis, this study revealed the status quo of readers’ satisfaction on the library service, analyzed the problems and made related strategies and suggestions in order to facilitate and enhance the library service quality.

In this paper the mathematical model have been developed for the computation of pressure gradient, viscosity, yield stress and wall shear stress and the influence of stenosis in the rheology of blood, where the blood flow is assumed to behave like a couple stress fluid, peripheral layer plasma (Newtonian fluid) and core layer of suspension of erythrocytes (Non- Newtonian fluid). The non-Newtonian fluid in the core region of the artery is assumed as a Herschel-Bulkley fluid. The resultspredicts that wall shear stress has directly proportional relation to the length of stenosis, yield stress, viscosity and pressure gradient respectively, and inversely proportional relation with the value of powermodel index n. The obtained results for wall shear stress in this paper have been compared to the results obtained by Musad and Khan (2010). It is observed that for the range of the height stenosis 8×10-5 to 10×10-5, the wall shear stress in case of Herschel-Bulkley fluid is considerably lower than these in case of Casson fluid.

In Bangladesh major group of population (73% of total population) live in rural areas. Without changing their living status Millennium Development Goals (MDG) will not be achieved and to do so it is necessary to ensure the use of electricity in those areas. The concern of this paper is about the role of rural electrification with the help of Solar Photovoltaic (PV) System, in respect of its financial viability and environmental benefits. Relevant information has been collected from 4 households and 2 microenterprises that make use of Solar PV System in various purposes from a village and a rural market-place nearby the village of Sunamganj district in Bangladesh. Use of the Solar PV System, both in microenterprises and other income generating purposes, alongside regular household usage, indicate relatively higher level of financial viability in favor of this investment. However, substitution of the use of only little quantity of kerosene by a Solar PV System indicates relatively lower level of financial viability against the investment. In this paper the term ‗financial viability‘ has been used to mean high levels of Net Present Value (NPV) and Internal Rate of Return (IRR) and low level of Pay Back Period (PBP). At 6 percent discount rate all the cases reveal that the investment (to buy a solar panel) is financially viable. However two cases out of six cases (1st and 2nd cases) show negative NPV at 9 and 12 percent discount rate without considering the environmental benefit and the quality and safety of the solar lamps.

This paper proposes some exponential estimators of the population mean in post-stratified sampling (PSS) scheme, when using known value of some population parameters. The bias and mean squared error of the proposed estimators are obtained up to first order approximations. Conditions under-which the proposed estimators perform better than other estimators, like the post-stratified sampling mean estimator, the ratio type estimator and the dual to ratio estimator, proposed by Onyeka (2012, 2013), are obtained. The theoretical results are further verified and confirmed using numerical illustrations.

The study was done among mothers of infants attending Children’s Out Patient Clinics of University of Port Harcourt Teaching Hospital using a semi-structured questionnaire. Information obtained included biodata, knowledge of tongue tie, cultural beliefs, symptoms, treatment, and complications. Data were analysed using SPSS version 17.0. There were 250 participants. 238 (95.2%) knew about tongue tie. Commonest symptom identified was inability to cry well. Cultural beliefs were that all babies should have routine clipping of the frenulum at birth (48.8%). 154 (61.6%) believed treatment should be between ages 0-1 month. Ninety two (36.8%) mothers had had babies treated for tongue tie, mostly by nurses either using scissors (40; 43.5%) or their finger nails (26; 28.2%). Complications included bleeding, fever and soft tissue injuries. Mothers are aware of tongue tie but need enlightenment on its mostly benign nature, and the need to seek professional advice when concerned about it.

In today’s world, consumption of paper and paperbased products is increasing in all the fields. Wood pulp which is extracted from the wood chips is the most commonly used raw material to manufacture the papers. Demand and supply of the wood pulp determines the social-economical development of a country. Many forecasting methods are used to predict the future demands of the wood pulp so that the supply chain management can be planned. In this paper, support vector regression analysis methods are used to predict the demands of wood pulp and Particle Swarm Optimization (PSO) algorithm is proposed to optimize the parameters of kernel functions. Regression models were created by using the data collected from TNPL. The parameters such as Mean Magnitude Relative Error (MMRE) and Median Magnitude Relative Error (MdMRE) are used for evaluating the results. Evaluated result shows that proposed SVM regression with PSO approach gave improved accuracy with significant decrease in MMRE and MdMRE

In this paper, we have studied the continuity and compactness of the bicomplex space and its subsets. We have studied the compactness of some subsets of the bicomplex space in the idempotent order topology. We have also given a result regarding homeomorphism in the idempotent order topology and the complex order topology on the bicomplex space.

The main aim of the present paper is to compute a summation formula in the shade of recurrence relation and contiguous relation.

Incessant intra-party conflicts which come in varying magnitudes and intensities have become the hall-mark of party politics in Nigeria‘s Fourth Republic. Some of these conflicts have led to the factionalisation of some major political parties and the consequence of decamping from one political party to the other by party members. Intra-party conflicts are engendered primarily because of the insatiable greed of the political elites for political power which creates the access for primitive accumulation of the commonwealth of the people. This negative trend in political parties has been having profound negative impact on the country‘s democratisation process, against the background that political parties are vehicles of representative democracy and a strong pillar for consolidating democratic governance. However, the ability of political parties to achieve this very important role is dependent on whether the relationship that exists between their members is harmonious or conflict ridden, owing to the fact that social groups exist by conflict and cooperation as it has been articulated in the theory of intra-group cooperation proposed in this paper. It is recommended therefore that political parties should ensure that they entrench internal democracy within their internal dynamics, especially with regards to selection of candidates for elections within and outside their parties. It is also obligatory on all members of political parties to subordinate themselves to their party constitution and not to the whims and caprices of power mongers in their parties. Finally, political parties should also orient their members to imbibe and exhibit values and ideals that would sustain the process of democratisation in Nigeria.