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A pot experiment was conducted in glass house conditions for 120 days to study the effects of phosphorus solubilizing Gram-positive bacteria on plant growth, nutrient uptake and yield of cowpea (Vigna unguculata). Among all twelve bacterial treatments, the strain Bacillus spp (B3) has shown the greatest shoot length 67.70 cm, root length 60.5 cm and total dry weight 4.57 g plant -1 after 45 days of sowing. Similarly, in the same treatment the shoot length, root length and total dry weight were found 162.36 cm, 60.5 cm and 128.49 g plant -1 , respectively at harvesting and total yield was obtained 23.34 g plant -1 , which was significantly greater than all other treatments and uninoculated control treatments containing single super phosphate (SSP) and rock phosphate (RP) as phosphorus sources (7.93 g plant -1 and 3.81 g plant -1 respectively). The strains Bacillus thurengensis (T1 and T6) also have indicated a significant increase in above parameters
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 field investigation during 2013-14 at Talwandi sabo, Punjab revealed that there are 19 insect pests identified from kharif crops whereas 13 insect pests were recorded from rabi crops. The 5 bio control agents and 2 ant species were recorded from agriculture field. In these Hemiptera and Lepidoptera are having maximum number of insect pests causing major damage to both kharif and rabi crops. Hence the present studies provide good information about different insect pests and its associated insects in agriculture fields.
Guava leaves have been used to treat cough and pulmonary diseases; they have also served as anti inflammatory and haemostatic agent in china. This work is therefore aimed at investigating the effects of guava leaf extract on the liver enzymes of adult wistar rats. Twenty apparently healthy wistar rats were used for this study. They were allocated into four groups (A, B, C & D) of five animals each. Group A served as the control and was orally administered with 0.5ml of distilled water; the experimental groups B, C, & D were orally administered 250mg/kg, 500mg/kg and 750mg/kg of guava leaf extract respectively for fourteen days. Twenty four hours after the last administration, the animals were dissected. Blood for serum preparation were collected through cardiac puncture. The activities of serum aspartate aminotransferase (AST), alanine aminotransferase (ALT) and alkaline phosphotase (ALP) were determined using randox kit method.
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.
This quantitative descriptive cross sectional study explored factors influencing sexual risk behaviours among youths in senior secondary schools in Ethiopia. Data were collected using structured questionnaires. Religious attachment, living with friends, living alone, parental control, level of parental education, peer pressure and number of friends who had experienced sex were some of the factors noted to influence youths to engage in sexual risk behaviours. The findings of this study have implications for both practice and policy development. They will enable healthcare workers to identify youths at risk of engaging in sexual risk behaviours and subsequently motivate them using health promotion strategies to engage in safe sexual practices. Adopting such an approach will prevent or at least minimise risk of youths being infected with sexually transmitted diseases, such as HIV/AIDS.
This paper presents an enhanced 32-bit carry lookahead(CLA) adder implementing using the constant delay (CD) logic, targeting at full-custom high-speed applications. The CD characteristic of this logic style regardless of the logic type makes it suitable in implementing complicated logic expressions such as addition. CD logic exhibits a unique characteristic where the output is pre-evaluated before the inputs from the preceding stage is ready. This feature offers performance advantage over static and dynamic domino logic styles in a single-cycle multistage circuit block. Several design considerations including timing window width adjustment and clock distribution are discussed. Using 65-nm general-purpose CMOS technology, the proposed logic demonstrates an average speed up of 94% and 56% over static and dynamic domino logic, respectively, in five different logic gates. Simulation results of 8-bit ripple carry adders show that CD logic is 39% and 23% faster than
Floods are related to several environmental processes. Therefore, its causes are as diverse as its consequences, both of which vary with the nature of the flood prone environment. In the low lying parts of flood plains, atmospheric extremes, especially excessive rainfall- are the primary causes of most of the flood episodes. The river Kaliaghai was originated from the highlands of the Jhargram P.S in the Paschim Medinipur district. The combined flows of the Kaliaghai and kangsabati which meet at Dheubhanga in P.S.-Moyna in the district of Purba Medinipur is known as the river Haldi. The river Kapaleswari and Baghai are two main tributaries of the Kaliaghai. The KaliaghaiKapaleswari- Baghai drainage basin covers an area of 2145 Km 2 . The lower parts of the basin comprising of 1576.25 Km 2 of low lying terrain historically suffers from flood and tidal inundation. Therefore it is essential to controlled flood, but practically we can’t control due to climatic condition. Bett
Resistance Spot Welding (RSW) is a process that is widely used in the automotive industries. The parameters that are used to develop a spot weld are the welding current, weld time and electrode force. Electrode force was not used as a control parameter due to the use of pneumatic system to actuate the welding electrode. The pneumatic system does not allow the development of closed loop control system; therefore electrode force was not used to control the growth of the spot weld nugget. This reported work looks into the ability to control electrode force dynamically during welding by using servomechanism. Force profiles were introduced in this work and the electrode force during welding was controlled to follow these force profiles. Based on the findings, the developed controller was able to control the electrode force during welding to follow the given force profiles. Decreasing the electrode force during welding facilitates the initiation of spot weld growth earlier in
Resistance Spot Welding (RSW) is a process that is widely used in the automotive industries. The parameters that are used to develop a spot weld are the welding current, weld time and electrode force. Electrode force was not used as a control parameter due to the use of pneumatic system to actuate the welding electrode. The pneumatic system does not allow the development of closed loop control system; therefore electrode force was not used to control the growth of the spot weld nugget. This reported work looks into the ability to control electrode force dynamically during welding by using servomechanism. Force profiles were introduced in this work and the electrode force during welding was controlled to follow these force profiles. Based on the findings, the developed controller was able to control the electrode force during welding to follow the given force profiles. Decreasing the electrode force during welding facilitates the initiation of spot weld growth