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Search Results: 1 - 10 of 400697 matches for " M. Salik "
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Diagnostic Study of Nickel Plasma Produced by Fundamental (1064 nm) and Second Harmonics (532 nm) of an Nd: YAG Laser  [PDF]
M. Hanif, M. Salik, M. A. Baig
Journal of Modern Physics (JMP) , 2012, DOI: 10.4236/jmp.2012.330203
Abstract: In the present work, we have studied the spatial evolution of the nickel alloy plasma produced by the fundamental (1064 nm) and second (532 nm) harmonics of a Q-switched Nd: YAG laser by placing the target material in air at atmospheric pressure. The four Ni I lines at 335.10 nm, 394.61 nm, 481.19 nm and 515.57 nm are used for the determination of electron temperature (Te) using Boltzmann plot method. The electron temperature is calculated as a function of distance from the target surface for both modes of Nd: YAG laser. In case of fundamental (1064 nm) mode of laser, the temperature varies from 13700 - 10270 K as the distance is varied from 0 to 2 mm. Whereas, in the case of second (532 nm) mode of laser it varies from 13270 - 9660 K for the same distance variation. The electron temperature has also been determined by varying the energy of the laser from 90 to 116 mJ, for the fundamental (1064 nm) harmonic and from 58 to 79 mJ for the second (532 nm) harmonics of the laser. The temperature increases from 14192 to 15765 K in the first case and from 13170 to 14800 K for the second case. We have also studied the spatial behavior of the electron number density in the plasma plume. The electron number density (Ne) in the case of fundamental (1064 nm) harmonic of the laser having pulse energy 125 mJ varies from 2.81 × 1016 to 9.81 × 1015 cm-3 at distances of 0 mm to 2.0 mm, whereas, in the case of second (532 nm) harmonic, with pulse energy 75 mJ it varies from 3.67 × 1016 to 1.48 × 1016 cm-3 for the same distance variation by taking Ni I line at 227.20 nm in both the cases.
Effect of Individual and Combined Application of Organic and Inorganic Manures on the Productivity of Guava (Psidium guajava L.)
Faqir Muhammad,M. Amin Shakir,M. Raza Salik
Pakistan Journal of Biological Sciences , 2000,
Abstract: The experiment was conducted to study the effect of farm yard manure and inorganic fertilizers applied alone or in combination on the productivity of Winter crop of guava. It has been observed that combined application of farmyard manure and NPK proved best to increase the fruit size, weight and total yield. Alone application of manure was found better than alone application of NPK. The effect of combined application of manure with NP, NK and PK was found in descending order to improve the production. Total soluble solids were not affected with any of the treatment and almost same level of TSS was noted in all cases. However, the yield was significantly increased when all the three major elements (NPK) were applied along with rottened farm yard manure.
Comparative Studies on the Performance of Some Grape Fruit Varieties under Soil and Climatic Conditions of Dera Ghazi Khan
M. Amin Shakir,M. Raza Salik,Faqir Muhammad
Pakistan Journal of Biological Sciences , 2000,
Abstract: Present research studies were carried out to compare four varieties of grape fruit i.e., Shamber, Marsh seedless, Foster and red Maxican for their vegetative and reproductive characters. It has been found that all the varieties behaved similarly in both the years for height and spread of plant and for TSS contents. With regard to yield, juice contents and juice percentage, Marsh seedless was found superior variety. Stem girth was nearly similar in all cultivars except red Maxican which produced least stem girth. Red maxican was better for giving more fruit size and average weight of single fruit. Generally, all the four cultivars behaved similarly for various vegetative and reproductive characters in both the years.
Effect of Time of Fertilizer Application on the Productivity of Kinnow (Citrus reticulata Blanko)
M. Raza Salik,Faqir Muhammad,M. Amin Shakir
Pakistan Journal of Biological Sciences , 2000,
Abstract: Present studies were conducted to evaluate the effect of fertilizer application at different times of the year on the productivity of kinnow. 40 kg rottened farm yard manure, 1 kg urea, 4 kg single supper phosphate and 1 kg sulphate of potash per plant was applied at three different times i.e., in January, April and July. Application in January improved the number of fruits, fruit size, weight of fruit and juice contents during 1997-98. TSS and juice percentage was not affected by any treatment. The same trend for effect of fertilizers was also observed during 1998-99 with a difference only that juice percentage was also affected with fertilizer treatment and increased when the fertilizer was applied in January. When the fertilizers were applied in April or July, no improvement was noted and the results were similar to or worse than control.
Relationship Between Age of Seedlings on Productivity of Tomato (Lycopersicon esculentum L.) Grown under Plastic Tunnel
M.R. Salik,Faqir Muhammad,M. Aslam Pervez
Pakistan Journal of Biological Sciences , 2000,
Abstract: The studies were conducted to find out the best age of seedling for transplanting and to compare three varieties of tomato i.e., Money maker, Peelo and IT-378-87. As regards the age of seedlings, medium aged seedlings i.e., 5 weeks were found best for survival percentage of plants, height of plant, number of fruits and yield of the plants followed by six weeks and four weeks. Time taken for flowering was observed less in case of four week seedlings than others. Number of branches were maximum in six weeks seedlings. Varieties did not show any difference for survival percentage or height of plants at first flowering. However, V1 was found best of all followed by V2 and V3 for number of branches, height at maturity, number of fruits per plant and yield, although this variety took maximum time for flower opening than V2 and V3. As regards interaction of varieties and treatments, no significant response was observed except number of fruits per plant.
A Novel Approach to ICD Lead Revision in a Patient with Extensive Vascular Thrombosis
Sony Jacob,Deepti Bhandare,Anil Mathew,M Salik Jahania
Indian Pacing and Electrophysiology Journal , 2010,
Abstract: Chronic extensive thrombosis of the venous system is a commonly encountered problem in end stage renal disease (ESRD) patients undergoing transvenous device implantation, lead extraction or lead revision. We describe a case of an ESRD patient with an implantable cardioverter defibrillator (ICD) that failed to deliver therapy due to lead fracture. Patient needed revision of the ICD lead system, but had extensive axillary-subclavian-superior vena cava occlusion. Patient refused a thoracotomy approach as well as lead extraction as he had a complicated course of lead extraction in the past. We successfully improvised a novel technique to revise the ICD system.
Work-related musculoskeletal disorders : A survey of physical therapists in Izmir-Turkey
Yesim Salik, Ayse ?zcan
BMC Musculoskeletal Disorders , 2004, DOI: 10.1186/1471-2474-5-27
Abstract: A two-page survey with closed ended questions was used as the data collected method. This survey was distributed to 205 physiotherapists working in Izmir, Turkey, and 120 physiotherapists answered. Questions included occupational history of physiotherapists and musculoskeletal symptoms, special areas, tasks, job-related risk factors, injury prevention strategies, and responses to injury.Eighty-five percent of the physiotherapists have had a musculoskeletal injury once or more in their lifetime. Injuries have been occurred mostly in low back (26 %), hand-wrist (18 %), shoulders (14 %) and neck (12 %). The highest risk factor in causing the injury was transferring the patient at 15%. Sixty-nine percent of physiotherapists visited a physician for their injury and sixty-seven percent of the respondents indicated that they had not limited their patient contact time as a result to their injuryAccording to the results of this study, the rate of musculoskeletal disorders in physiotherapists in Izmir-Turkey has been found to be high due to their profession. Respondents felt that a change in work habits was required in order to decrease the risk of another injury.A work-related musculoskeletal disorder (WRMD) is defined as a musculoskeletal injury that results from a work-related event. This may result in lost work time, work restriction, or transfer to another job [1-4]. These types of injuries are common among physiotherapists [1,2,5-9]. This group has a moderately high prevalence of occupational low-back pain [2,9-12]. Physical therapists routinely perform manual therapy, such as soft-tissue mobilization, which means that the upper limb is also exposed to risk factors associated with musculoskeletal and neurovascular disorders [1,2,6-8,13,14]. In addition, these professionals routinely perform activities that involve transferring a patient (from exercise mat to chair, to parallel bar etc), assisting with activities on the exercise mat, and lifting and using cumbersome equi
Spectrum of antihypertensive therapy in South Asians at a tertiary care hospital in Pakistan
Aysha Almas, Salik ur Rehman Iqbal, Anabia Ehtamam, Aamir Khan
BMC Research Notes , 2011, DOI: 10.1186/1756-0500-4-318
Abstract: It was a crossectional study conducted on 1191 adults(age > 18 yrs)hypertensive patients selected by computerized International Classification of Diseases -9-coordination and maintenance (ICD-9-CM) presenting to a tertiary care hospital in Pakistan. Data on demographics, comorbids, type of antihypertensive drug, number of antihypertensive drug and mean duration of antihypertensive drug was recorded over 1.5 year period (2008-09). Blood pressure was recorded on admission. Primary outcome was use of combination therapy and secondary outcome was use of diuretic therapy.A total of 1191 participants were included. Mean age(SD) was 62.55(12.47) years, 45.3%(540) were males. Diabetes was the most common comorbid; 46.3%(551). Approximately 85% of patients had controlled hypertension. On categorization of anti hypertensive use into 3 categories;41.2%(491) were on monotherapy,32.2%(384) were on 2 drug therapy,26.5%(316) were on ≥3 drug therapy. Among those who were on monotherapy for HTN;34%(167) were on calcium channel blockers,30.10%(148) were on beta blockers, 22.80%(112) were on Angiotensin converting enzyme (ACE) inhibitors,12%(59) were on diuretics and 2.20%(11) were on Angiotensin receptor blockers(ARB). Use of combination antihypertensive therapy was significantly high in patients with ischemic heart disease(IHD)(p < 0.001). Use of diuretics was in 31% (369) patients. Use of diuretics was significantly less in patients with comorbids of diabetes (p 0.02), Chronic kidney disease(CKD)(p 0.003), IHD (p 0.001) respectivelyMost patients presenting to our tertiary care center were on combination therapy. Calcium channel blocker is the most common anti hypertensive drug used as monotherapy and betablockers are used as the most common antihypertensive in combination. Only a third of patients were on diuretic as an antihypertensive therapy.Hypertension is a leading contributor to the global burden of cardiovascular morbidity and mortality [1]. Despite availability of antihyper
Agro-morphological Variability Study of Barley (Hordeum vulgare L.) Landraces in Jumla, Nepal
Salik R. Gupta,Madhusudan P. Upadhyay,Uma S. Shah
Nepal Agriculture Research Journal , 2009, DOI: 10.3126/narj.v9i0.11635
Abstract: Barley is an important winter cereal crop in Jumla (2240-3000 masl), Nepal. It is grown in different cropping patterns in both Khet and Bari land conditions. A total of 207 accessions of barley landraces collected from various locations of Jumla were studied for agromorphological characteristics in Khumaltar and Jumla. Data on eight qualitative and five quantitative traits in 2-m row plot were recorded to assess diversity among the landraces. Bhuwali, Chawali, Lekali and Pawai were four farmer-named traditional barley varieties under cultivation in Jumla. A range of variability was observed among the accessions of barley landraces. All accessions are six-row covered barley possessing rough awns and whitish-brown grains. These landraces exhibit a range of variation in growth class, spike density and rachilla hair length. Lekali and Pawai are adapted to the high-altitude area of Jumla. Cluster analysis of measured data under on-farm and on-station conditions indicated five distinct clusters. Three principal components explained 84.3% and 60.2% of the total variation from on-station and on-farm, respectively. Nepal Agric. Res. J. Vol. 9, 2009, pp. 1-11 DOI: http://dx.doi.org/10.3126/narj.v9i0.11635
Flicker noise in high-speed p-i-n photodiodes
Enrico Rubiola,Ertan Salik,Nan Yu,Lute Maleki
Physics , 2005, DOI: 10.1109/TMTT.2005.863062
Abstract: The microwave signal at the output of a photodiode that detects a modulated optical beam contains the phase noise phi(t) and the amplitude noise alpha(t) of the detector. Beside the white noise, which is well understood, the spectral densities S_phi(f) and S_alpha(f) show flicker noise, proportional to 1/f. We report on the measurement of the phase and amplitude noise of high-speed p-i-n photodiodes. The main result is that the flicker coefficient of the samples is approximately 1E-12 rad^2/Hz (-120dB) for phase noise, and approximately 1E-12 Hz^-1 (-120dB) for amplitude noise. These values could be observed only after solving a number of experimental problems and in a protected environment. By contrast, in ordinary conditions insufficient EMI isolation, and also insufficient mechanical isolation, are responsible for additional noise to be taken in. This suggests that if package and EMC are revisited, applications can take the full benefit from the surprisingly low noise of the p-i-n photodiodes.
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