Found 5260 related files. Current in page 1
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
The pre-engineered steel building system construction has great advantages to the single storey buildings, practical and efficient alternative to conventional buildings, the System representing one central model within multiple disciplines. Preengineered building creates and maintains in real time multidimensional, data rich views through a project support is currently being implemented by Staad pro software packages for design and engineering.
This paper presents an improved design of voltage controlled oscillator (VCO) utilizing the three differential cell CMOS inverters for forming the ring oscillator. The differential cell reduces the power supply fluctuations impact on the oscillator jitter while the negative feedback from frequency to voltage converter reduces the jitter at high frequencies. Finally the proposed model is designed using CMOS 0.18um foundry technology and simulated using P-Spice software. The result shows that the proposed design improves the jitter attenuation at different offset frequencies up to 40dB
This study was conducted with the aim of investigating how access control would secure customer information in Kenya. This study was guided by the set out objectives: first to determine how data control mechanisms enhance security access, secondly to investigate the security issues on access of customer information and thirdly to develop Secure Data Access Control (SEDAC) model. In achieving these objectives a self administered questionnaire was developed and distributed to randomly selected respondents. The findings of the study were analyzed using SPSS. The Security Data Access Control (SEDAC) model was developed for and recommended for adoption by the end users as a guide to enlighten the novice worker who constitutes a large number of the work force.
Phototoxic and photoallergic reactions represent skin reactions to the sun, in the presence of photoactive chemicals applied on the skin or taken systemically. They have a highly polymorphic clinical presentation – photo contact urticaria, eczema on sun-exposed areas sometimes with erythema multiforme, exaggerated sunburn, linear phytophotodermatitis, pseudoporphyria, photoonycholysis, dyschromia, and lupus erythematosus. Also, skin cancers are increasingly associated with exposure to photoactive chemicals. There is a geographical and timely variation in the responsible agents, but they are mostly furocumarins from plants, UV filters in sunscreens and cosmetics, and drugs (NSAIDs, antimicrobials, phenothiazines, amiodarone, etc.) Three drugs like Chloramphenicol, Norflox, and Kucil(Fluorouracil) were tested for Phototoxic effect procured from local market and check the ph and absorption spectra and note and solubility of test drug was tried out through different solve
Multi-attribute analysis is a useful tool in many economical, managerial, constructional, etc., problems. There is usually some uncertainty involved in all multi-attribute model inputs. The objective of this work is to demonstrate how simulation can be used to reflect fuzzy inputs, which allows more complete interpretation of model results. A case study is used to demonstrate the concept of general contractor choice of on the basis of multiple attributes of efficiency with fuzzy inputs applying COPRAS method. The work has concluded that the COPRAS method is appropriate to use.
Bank managements are interested in determining the rate of liquidity based on a strategy for meeting this need. Lack of sufficient liquidity might impose heavy costs and even lead to bankruptcy. On the other hand, surplus liquidity will result in losing investment opportunities and reduction in productivity and profit ability of banks. In this research, efforts are taken to use the most affecting factors by investigation on important factors effective on the liquidity rate. The data used are chosen from 573 real values of banking operations. The variables are NEII 1 , RTGS 2 and clear transaction and the outcome of these variables is bank liquidity. In this research, two methods of ARIMA and multiple regressions are applied for predicting the future liquidity data and two mathematical models are introduced. The model introduced can predict liquidity rate based on two years data effectively. The results showed that the mean deviations between output of model
Even a small transition delays and little faults create major concern in digital circuits. It Produce greater impact on not only for simple memory but also for most of the memory applications. This paper presents an error-detection method for difference-set cyclic codes with majority logic decoding. Majority logic decodable codes are suitable for memory applications due to their capability to correct a large number of errors. However, they require a large decoding time that impacts memory performance. The proposed fault-detection method significantly reduces memory access time when there is no error in the data read. The technique uses the majority logic decoder itself to detect failures, which makes the area overhead minimal and keeps the extra power consumption low. The proposed method detects the occurrences of single error, double error ,triple error in the received code words obtained from the memory system.
This paper presents Computational Fluid Dynamics (CFD) analysis of Pelton turbine of Khimti Hydropower in Nepal. The purpose of CFD analysis is to determine torque generated by the turbine and pressure distributions in bucket for further work on fatigue analysis. The CFD analysis is carried out on model size Pelton runner reduced at 1:3.5 scale to minimize computational cost and time. The operating conditions for model size runner is selected in accordance with IEC 60193 and IEC 1116. The paper describes the methods used for CFD analysis using ANSYS CFX software. 3 buckets are used to predict the flow behavior of complete Pelton turbine. k-ε and SST turbulence model with interphase transfer method as free surface and mixture model is compared in the paper. The pressure distribution is found maximum at bucket tip and runner Pitch Circle Diameter (PCD). The torque generated by the middle bucket is replicated over time to determine total torque generated by Pelton turbine.
Although the ACFI funding model may not be perfect, and there are industry concerns, feedback has indicated that: • There has been an increased in access to pain management interventions • The ACFI provides some flexibility in frequency, duration & complexity of interventions • There are incentives for facilities to improve resident outcomes • Industry monitoring occurs, with representation across several health disciplines • The scope of physiotherapy in aged care has grown since the introduction of the ACFI • There can be encouragement of rehabilitation