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Search Results: 1 - 10 of 7804 matches for " Ayub Khan "
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Chaotic Properties on Time Varying Map and Its Set Valued Extension  [PDF]
Ayub Khan, Praveen Kumar
Advances in Pure Mathematics (APM) , 2013, DOI: 10.4236/apm.2013.33051
Abstract: Every autonomous dynamical system X, finduces a set-valued dynamical system \"\"on the space of compact subsets of X. In this paper we have investigated some chaotic relations between a nonautonomous dynamical system and its set valued extension.
Chaos Synchronization in Lorenz System  [PDF]
Ayub Khan, Prempal Singh
Applied Mathematics (AM) , 2015, DOI: 10.4236/am.2015.611164
Abstract: In this paper, we analyze chaotic dynamics of nonlinear systems and study chaos synchronization of Lorenz system. We extend our study by discussing other methods available in literature. We propose a theorem followed by a lemma in general and another one for a particular case of Lorenz system. Numerical simulations are given to verify the proposed theorems.
Olfactory mediated interactions between Citrus aurantium Toxoptera citricida and Lysiphlebus testaceipes
Bahadoorsingh, Reetu;Khan, Ayub;
Pesquisa Agropecuária Brasileira , 2006, DOI: 10.1590/S0100-204X2006001100003
Abstract: the objective of this study was to establish whether there are olfactory interactions in the lysiphlebus testaceipes toxoptera citricida and citrus aurantium tritrophic system. the response of male and female l. testaceipes to different odour sources of the host plant c. aurantium, the aphid host t. citricida and aphid-plant complex were investigated using a y-tube olfactometer. laboratory experiments were conducted by exposing individually aged male and female l. testaceipes to eight different odour treatments. response of the parasitoids was taken after 15 min exposure to the volatiles from the different odour sources and based on their orientation to the particular chamber. seventy percent of both male and female l. testaceipes showed high attractivity to aphid infested leaves. there was no significant difference based on age and sex of the parasitoid on their choice of odour. the organic compounds released by these combinations acted as semiochemicals in the tritrophic interactions and it is suggested that insect feeding induced attraction of the parasitoid l. testaceipes.
The Professional Medical Journal , 2006,
Abstract: Objective: To know the prevalence of hepatitis B, hepatitis C and HIV.Design: Observational cross sectional study. Setting: Blood Transfusion Center Tehsil Headquarter HospitalLiaquetpur. Subjects and Methods: The data of blood donors from 2001 to 2003. Results: Total blood donors studiedwere 1426. The prevalence for hepatitis B was 5.96% (CL 4.84%-7.32%) It was 0.07% (CL <0.01% - 0.44%) for HCVand zero for HIV. The prevalence of HBV in males was 6.03% (CL 4.87%-7.45%) while 5.05% (CL 1.91%-11.63%) infemales (p=0. 6917). The prevalence in 17-20 years age group was 6.4% (CL 3.92%-10.23%), 5.81% (CL 4.6%-7.33%)in 21-40 years age group and in 41-60 years age group it was 4.35% (CL 1.33%-28.19%) [p=0.9029]. Conclusion:Hepatitis B is common, hepatitis C is an uncommon health problem while HIV is not present in this area.
Jagadeesh Induru*,Ayub Khan Pathan
Pharmacie Globale : International Journal of Comprehensive Pharmacy , 2011,
Abstract: Work life balance (WLB) is the current distinct issue of pharmaceutical industry. The employees always want to succeed and progress at work place, at the same time spare some time for family and recreation. Balancing these two extremes is the cause of burn out of employees and hence the employers recognized this as a need of hour and want to introduce the work life balance strategies, plans and formulate polices to improve the employee morale, motivation and productivity. Work life balance does not mean working less to fulfill personal responsibilities at the cost of organizational productivity. In fact it is to work productively and improve the personal life simultaneously. The work life balance practices achieve retention of the employees and reduce the absenteeism. This paper enlightens the wide options for employers and employees to link work life balance practices for organizational and personal performance.
Performance of Exotic Lentil Varieties under Rainfed Conditions in Mingora (NWFP) Pakistan
Ayub Khan,M. Rahim,Amjad Khan
Journal of Biological Sciences , 2001,
Abstract: Coefficient of variation, in 25 exotic lentil genotypes were very low for maturity (days) (1.16%), flowering (4.36%) and seed yield plant -1 (10.22%) but high for pod plant -1 (44.03%), seed pod -1 (22.84%), biological yield (21.48%) and plant height (cm) (20.75%). Seed yield had significantly positive correlation with pod plant -1, branches plant -1, and seed pod -1. Flowering and maturity revealed weaker but positive correlation with seed yield, while biological yield showed negative correlation with seed yield. Pods plant -1 and seed pod -1 can be used while selecting lentil varieties for this zone. Plant height also showed very interesting correlation: reducing plant height meant more seeds pod -1 and biological yield. However, early maturing, shorter varieties with more number of branches plant -1 and seed pod -1 may be considered an index for selection in the germplasm under study for yield.
Yield Response of Groundnut Genotypes under the Sub-mountainous Conditions of Malakand Division (NWFP), Pakistan
Ayub Khan,M. Rahim,Amjad Khan,M.Idrees Khan
Pakistan Journal of Biological Sciences , 2001,
Abstract: Field experiments on 12 groundnut genotypes were carried out at three different locations of Malakand Division. Significant differences were noted for maturity duration, pod plant -1, kernel pod -1, shelling%, 100-kernel weight and pod yield, among the locations, genotypes and location X genotype interaction. Maturity was earlier at Cheena, with minimum pod plant -1 and kernel pod -1. Among the genotypes, PG-931 and PI-338337 were earliest in maturity. PG-931 also had maximum pods plant -1 whereas PI-338337 had maximum kernel pod -1. 100-kernel weight was higher at Cheena. PG-951 (74.91%) and PG-864 (74.12%) produced maximum shelling % at all the locations. The highest pod yield of 3167 Kg ha -1 and 2750 kg ha -1 were recorded at Mingora and Cheena, respectively. Among the genotypes, PG-931 produced the maximum yield of 3685 Kg ha -1, whereas minimum yield of 1583 kg ha -1 was recorded for the check variety, Swat Phalli-96.
Application of Genetic Algorithm for Optimization of Important Parameters of Magnetically Biased Microstrip Circular Patch Antenna  [PDF]
Naveen Kumar Saxena, Mohd Ayub Khan, Nitendar Kumar, Pradeep K. S. Pourush
Journal of Software Engineering and Applications (JSEA) , 2011, DOI: 10.4236/jsea.2011.42014
Abstract: The application of Genetic Algorithm (GA) to the optimization of important parameters (Directivity, Radiated Power, Impedance etc.) of magnetically biased microstrip antenna, fabricated on ferrite substrate, is reported. The fitness functions for the GA program have been developed using cavity method for the analysis of microstrip antenna. The effect of external magnetic biasing has also been incorporated in the fitness function formulation as effective propagation constant. Using stochastic based search method of GA the common characteristics of electro-magnetic were entertained which cannot be handled by other optimization techniques. The genetic algorithm was run for 500 generations. The computed results are in good agreement with the results obtained experimentally.
Studies on the Optimization and Storage Stability of Virgin Coconut Meal Incorporated Instant Sooji Halwa Mix  [PDF]
Mohammed Ayub Khan, Mahesh Chitrashekarchar, Anil Dutt Semwal, Gopal Kumar Sharma
Food and Nutrition Sciences (FNS) , 2012, DOI: 10.4236/fns.2012.38145
Abstract: Virgin Coconut Meal (VCM) was used for the development of instant wheat sooji (semolina) halwa mix with better nutritional attributes. Central composite rotatable design (CCRD) with 2 independent variables (sugar and VCM) and 4 responses (lightness, redness, taste and overall acceptability) was used for the optimisation. VCM incorporated instant halwa mix prepared using optimised levels of ingredients contained moisture 0.95%; fat 26.2%; protein 7.65%; total ash 0.86%; fibre 1.02% and received overall acceptability score of 8.5 on a 9 point hedonic scale providing 523.86 K·cal/ 100g. The changes in quality of stored VCM incorporated instant halwa mix packed in polypropylene (PP, 75 μ) and laminates of metallised polyester (MP, 90 μ) were monitored in order to assess the shelf-life. Instant halwa mix remained stable and acceptable for one year in both the packaging materials under ambient temperature conditions (15℃ - 34℃). However, the rate of lipid peroxidation was found to be slightly higher in PP packed samples as compared to MP packed ones. Fatty acid composition of VCM incorporated instant halwa mix remained practically unchanged during storage. Oleic acid was the major fatty acid present in fat extracted from halwa mix followed by palmitic and lauric acids.
Optimization of Multigrain Premix for High Protein and Dietary Fibre Biscuits Using Response Surface Methodology (RSM)  [PDF]
Kathalsar Ashwath Kumar, Gopal Kumar Sharma, Mohammed Ayub Khan, Anil Dutt Semwal
Food and Nutrition Sciences (FNS) , 2015, DOI: 10.4236/fns.2015.69077
Abstract: In order to improve the nutritional quality of biscuits, a multigrain premix (MGP) was developed by using whole barley, sorghum, chickpea, pea and defatted soya flour, each at 20% level. The developed MGP had 26.28% protein, 10.13% insoluble dietary fiber and 7.38% soluble dietary fiber. The experiment was designed to optimise the MGP and wheat flour concentration for the development of multigrain biscuits with high protein, dietary fibre and to maximize the acceptability by the application of central composite rotatable design (CCRD) of Response Surface Methodology (RSM). The levels of incorporation of MGP and wheat flour were taken as variables whereas protein, soluble, insoluble fibers, biscuit dough hardness, breaking strength and overall acceptability (OAA) as responses. The optimum level of MGP and wheat flour obtained using numerical optimization was found to be 40 g and 60 g respectively. The biscuits prepared using these had 16.61% protein, 2.57% soluble fibre, and 6.67% insoluble fibre which is significantly (p ≤ 0.05) higher than control biscuit.
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