The choice of flip-flop technologies is an vital importance in design of VLSI integrated circuits for high speed and high performance CMOS circuits. In this paper, is to design a Low-Power Pulse-Triggered flip-flop which has small delay and low power consumption. First, the pulse generation control logic, an AND function, is removed from the critical path to facilitate a faster discharge operation. A simple two-transistor AND gate design is used to reduce the circuit complexity. Second, a conditional pulse-enhancement technique is devised to speed up the discharge along the critical path only when needed. As a result, transistor sizes in delay inverter and pulse-generation circuit can be reduced for power saving. Low power 8-counter is implemented using the proposed low power pulse triggered flip-flop with conditional pulse enhancement scheme.
The aim of this study is to determine the antimicrobial, antioxidant and chemical composition of the hydrodistilled oils of Balansea glaberrima. The essential oil was obtained by hydrodistillation and analyzed by gas-chromatography-mass spectrometry (GC/MS) .The major components were found to be valencene (36, 65 %), l’apiole (34, 87%) and γ-muroléne (9, 83 %). The antibacterial activity of the essential oils is evaluated by disk diffusion method (NCCLS) and tested against gram-positive and gram-negative bacteria, the antimicrobial activity of the essential oil revealed an important effect against E.coli and A.flavus but the antioxidant activity was evaluated using the free radical scavenging effects of the DPPH Essential oil demonstrated an effect antiradicalar very low in comparison with BHT the IC of B. glaberrima is 9136 µg/ml, IC of BHT is 41,35 µg/ml The results were compared with synthetic antioxidant (BHT)
The breeding habits of the Rubber lip grunt (Plectorhynchus mediterraneus) were studied from January to December 2014 in the northern coast of the Mauritanian Exclusive Economic Zone. The examination of the gonads showed that the species is gonochoric and the sex ratio not statistically significant using the test χ². Analysis of the gonad index and the percentages of maturity stages indicate that the spawning period occurs in June, July and August. The hepato -somatic ratio analysis confirms that the species uses its reserves energy in the liver to ensure maturation of the gonads. The size of individuals at first maturity (L50) was estimated at 29.2 cm for males and females. The results are relevant for management of the Rubber Lip grunt fishery
Vitamin B-6 reacts with dinitrobenzene at PH range 10-10.15 . it gives a violet color having maximum absorbance at 550nm. The reaction is specific for Vitamin B-6 and provides a bases for its spectrophotometric determination. The color reaction obeys beer’s law from 0.1 to 3mg/10ml of Vitamin B-6. The relative standard deviation is 1.69%.The quantitative assessment of tolerable amount of other drugs have also been studied.
This study examines the effect intellectual capital (IC) on firm financial performance using a sample of Malaysian high IC firms between 2000 and 2011. Correlation and regression models were used to examine the relationship between variables. The related result of this study demonstrated that there is no relationship between IC and high IC firm financial performance measured by traditional accounting based measures i.e. ROE and ROA. In addition, this study found that the relationship between components of IC (HC, SC, and CE) and firm financial performance is positively and significant.
In this study, an attempt was made to obtain information about cash crops and source of finance around Ndian Division of Cameroon. These may improve our knowledge on the contribution of banks to large scale forest conversion. Banks provide the money needed for land purchasing, preparation, cultivation and maintenance via loans and credit schemes. We carried out a study was involving some 404 farmers distributed in 14 villages. It focused on farmer cash crop farm ownership since 1990, cash crop type; farm size, number of farms and source of finance for farm development. The results demonstrated that, 328 farmers out of 404 (81.2%) had directly obtained finance from local banks with the major funder, being Lobe Credit Union. The average farm size per farmer, ranged from 5.1 hectares (ha) to 17.8 ha while oil palm (Elaies guineensis) was the most farmed cash crop, 2824ha.\n\nThe study reflected that, through microfinance loans and schemes, banks were directly involved in large scale forest conversion in this part of Cameroon.
Some aspects of the reproductive biology of the three dominant species in the Macrobrachium fishery of the Cross River Estuary, namely; M. macrobrachion, \nM. vollenhovenii and M. equidens, were studied. Due to the difficulties associated with identifying the onset of maturity of Macrobrachium males, only the females were used in the study. The length at massive maturation (TLm in mm) for M. macrobrachion was 68.83 (CI: 66.63-71.10 mm) at a corresponding age of 6.61 (CI: 6.28-6.96) months. TLm for M. vollenhovenii was 106.74 (CI: 102.82-110.81), at a corresponding age of 7.42 (CI: 7.01-7.82) months, while TLm for M. equidens was 59.09 (CI: 57.50-60.72), at the age of 7.70 (CI: 7.39-8.03) months. Average fecundity for M. macrobrachion, M. vollenhovenii and M. equidens were 2490 (range 270-4710), 23,943 (range 1744-46,141), and 2359 (range 400-4318) eggs per female, respectively. The larger females had more eggs than the smaller ones. Understanding of the reproductive biology of these biological species is important for their cultivation and efficient management of their fisheries and ecosystem resources.