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In Communication system, the system capacity and performance are adversely affected and degraded by interference. Hence, power control plays a prominent role in an interference-limited system, which increases the efficiency by mitigating the adjacent and co-Channel interference in the system. In this paper, primarily power control is said to be used in maintaining the acceptable Carrier to Interference Ratio (CIR) by meeting some Quality of service (QoS) requirements Objective function that is defined as maximum channel capacity in a power constraint scenario. The signals in a radio channel undergo different propagation effects like reflection, refraction, scattering and shadowing. Hence, the distribution of users across subcarrier groups as well as their transmission powers within a given cell has a significant effect on how users and power are accordingly distributed elsewhere in the network to maximize the capacity of the system thereby enhancing its performance
This research work was carried out to investigate the proximate and mineral composition of some traditional vegetables in Akwa Ibom State, Nigeria. These vegetables include: Talinum triangulare, Hensia crinita, Cucurbita maxima and Lasianthera africana. The vegetables were washed in potable water to remove unwanted matters and were analyzed for proximate and mineral content. All analyses were carried out in three replicates and the mean data were presented on tables using the spread sheet Microsoft Excel. Talinum triangulare had the highest protein content (56.72%) and moisture content (80.11%) but had the lowest content of ash (6.31%), crude fibre (2.96%) and carbohydrate (6.91%). Ash and crude fibre were present in low quantities in Talinum triangulare, Hensia crinita, and Lasianthera africana, except Cucurbita maxima which had the highest composition of ash (14.06%) and crude fibre (9.37%). Mineral composition (Potassium (K), Calcium (Ca), Magnesium (Mg) and
This paper assesses the net welfare associated with the adoption of Bench Terraces (BT), Contour Bunds (CB), and Napier Grass Strips (NGS) in the Saba Saba sub-catchment of the Upper Tana catchment in Kenya. An agro-economic survey and informal interviews were conducted in the Saba Saba sub-catchment to elicit farm level quantitative data for the Cost Benefit Analysis (CBA). Financial functions in excel were used to analyze the on-site costs and benefits of adopting the identified SWC technologies on farms with crops such as maize, coffee, and tea. In this research CBA was used as a decision tool after the computation of all cost and benefits were valued in local currency to obtain the Net Present Value (NPV) or net welfare. The results show that investment in SWC measures may not be a feasible short-term option from farmers’ perspective. There is, therefore, a strong case for intervention, especially in the initial years where SWC adoption yields negative returns.
Occupational stress is considered to be a main health problem for both individuals and organizations. This study has investigated the measurement of occupational stress among Management Information Systems (MIS) Users in different banks in the Kingdom of Bahrain. Furthermore, to identify their high job stressor factors and increase understanding of the impact of individuals differences in occupational stress. A descriptive, cross sectional survey was performed in five banks. Using quota sampling, MIS users’ from different divisions were asked to complete questionnaires- including demographic data, job stress and stressor factors. Six main stress factors were identified among MIS users banker staff: 1) intrinsic work characteristics (job design); 2) work culture and function; 3) managerial role; 4) career development; 5) relationships at work and 6) home-work interface. A total of 250 self-administrated questionnaires were distributed (hand delivery) to the banks divisions. The overall response rate was 80.8% (202/250) and the result suggested that over a third of MIS users in banks reported that their jobs were highly stressful. The bankers are exposed to high job stressors such as job design (overload, long working hours, deadlines and time pressure, repetitive task and lack of variety, and shortages of staff); and career development (under promotion and working at a level below their level of abilities and skills). However, the result of this research can be applied for improving sources of occupational stress and further, precluding severe stress and concern was expressed that such findings should be considered when delivering stress management programs.
Research and Development (R&D) function in the Pharmaceutical organization works towards the discovery of new drugs, development of drugs and repositioning of the drugs. It is very important that all the activities that are carried out in R&D comply with the standards of various regulatory and statutory authorities so that the organizations produce drugs with care and ensure that they are safe for human consumption. This study is aimed at studying how knowledge management systems ensure compliance to regulatory and safety standards
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By using the Oguchi approximation(OA), we study a mixed spin-2 and spin-5/2 Blume-Capel Ising ferrimagnet with different single-ion anisotropies on a simple cubic lattice. It has been carried out Oguchi method and calculated the free energy of a mixed spin ferrimagnetic model from the partition function. By minimizing the free energy, it has been obtained the equilibrium magnetizations and the compensation temperatures. The existence and dependence of a compensation temperature on the crystal field is mainly investigated.
Birds as best indicators of wetland function or as measures of success in wetland management, restoration and creation. This study was conducted during Jan to March 2014; totally 09 selected wetlands were surveyed in Kawardha, Kabirdham District of Chhattisgarh. Species diversity and dominance of birds were calculated. Totally 64 birds belonging to 36 families were recorded, out of these 64 species 35 water birds and 29 terrestrial bird species. Maximum diversity of birds was recorded in Sutiyapath dam. Bird abundance and vegetation cover were recorded. The highest numbers of birds were recorded in Chhirbandha lake (21) followed by Sutiyapath dam (19), Sarodha dam (15) and Lalpur Nursery (13). Three near threatened species, namely Threatened Egyptian vulture, Indian Black Ibis and Oriental White Ibis were recorded. In most of the wetlands Ipomea carnea (15.28 %) was the dominant species. This pond has abundant maximum occasionally birds and maximum number of birds.
Relationship between Pulmonary Function Tests and Common Haematological Parameters (RDW, Hb, MCH, MCHC, MCV) In Healthy Non-Smokers
Satellite attitude estimation is one of the important processes in accomplishing a satellite mission. All the state estimation process requires dynamics model and filtering algorithm to estimate the state. Most of the estimation algorithm such as well-known Kalman filter and its variation assume the underlying noise in the dynamics model is Gaussian white noise. Hence, the objective of this paper is to investigate whether the noise in satellite attitude dynamics model in Near Equatorial orbit is Gaussian white noise process or not. This is important because if the assumption regarding the noise is incorrect, this will lead to unreliable and inaccurate estimation. In this paper, the noise is analyzed using normality characterizations and autocorrelation function. The result shows that the noise in the attitude dynamics at Near Equatorial orbit is not Gaussian white noise process.