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K TAP TANITIMI / BOOK REVIEWS -YET K N E T M D N OLAB L R M ?
AbdulkadirEKN
Journal of the Human and Social Science Researches (itobiad) , 2012,
Abstract: Bu yaz , “Gabriel MORAN, nterplay: “A Theory of Religion and Education”, Saint Mary's Press, Minnesota, 1981” künyeli eserin “Can Adult Education Be Religious?” ba l kl 8. b lümünün evirisidir.
Energy Efficiency and Rebound Effect: Does Energy Efficiency Save Energy?  [PDF]
Abdulkadir Bulu?, Nurgün Topalli
Energy and Power Engineering (EPE) , 2011, DOI: 10.4236/epe.2011.33045
Abstract: The aim of this study is to examine the theoric and empirical literature about “rebound effect”. This study summarizes energy efficiency policy and programs in general and in Turkey. Also it gives defination of the “rebound effect” concept. The rebound effect is related to consumer’s tendency to consume more energy due to economic benefit from efficiency improvement. The ‘rebound effect’ is the focus of a long-running dispute of energy economics but it is very new concept in the most developing countries. In literature according to some economist gains in energy efficiency will also reduce the real per unit price of energy services and hence the consumption of energy will rise and partially offset the initial reduction in the usage of energy sources. However for others size of the rebound effect is too small to take attention. The empirical literature shows that the size of rebound effect can change from country to country and sector to sector.
Utilising neural networks and closed form solutions to determine static creep behaviour and optimal polypropylene amount in bituminous mixtures
Tapk?n, Serkan;?evik, Abdulkadir;?zcan, ?enol;
Materials Research , 2012, DOI: 10.1590/S1516-14392012005000117
Abstract: the testing procedure in order to determine the precise mechanical testing results in marshall design is very time consuming. also, the physical properties of the asphalt samples are obtained by further calculations. therefore if the researchers can obtain the stability and flow values of a standard mixture with the help of mechanical testing, the rest of the calculations will just be mathematical manipulations. determination of mechanical testing parameters such as strain accumulation, creep stiffness, stability, flow and marshall quotient of dense bituminous mixtures by utilising artificial neural networks is important in the sense that, cumbersome testing procedures can be avoided with the help of the closed form solutions provided in this study. marshall specimens, prepared by utilising polypropylene fibers, were tested by universal testing machine carrying out static creep tests to investigate the rutting potential of these mixtures. on the very well trained data basis, artificial neural network analyses were carried out to propose five separate models for mechanical testing properties. the explicit formulation of these five main mechanical testing properties by closed form solutions are presented for further use for researches.
Application of Kozeny-Carman Equation to Estimate Saturated Hydraulic Conductivity of an Alfisol at Samaru and a Cambisol at Kadawa, Nigeria
A Abdulkadir, N Abdu, I Jibril
Nigerian Journal of Basic and Applied Sciences , 2012,
Abstract: Kozeny-Carman equation was used to estimate field and laboratory determined saturated hydraulic conductivity (Ks) based on Pe values obtained from soils of two Northern Savanna ecological zones of Nigeria (Samaru and Kadawa). Total porosity was determined from measured dry bulk density (Db), particle density (Dp) and moisture content at –33kPa pressure potential. Effective porosity was calculated as the difference between total porosity and volumetric moisture at -33kpa. The Ks and Pe values were fitted into the Kozeny-Carman equation using the linear least square fitting. In Samaru, 91.7 and 61% variation of Ks were explained respectively from field (Kfs) and laboratory measurements (Kls) while 61% variation of Ks was explained from the average values of laboratory measurement for Kadawa. The proportionality constant (β) varied widely between 7.1 × 10-3 to 6918.30 while the fitting parameters (n) varied from values < 1 to 2.37. The Relative Effective Porosity (REP) was adapted to substitute Pe in the Kozeny-Carman equation. Only field measured data (r2 = 0.881) and laboratory measured data (r2 = 0.573) from Samaru fit into the model and the regression coefficients were not improved. The REP- Model did not perform well with the data presented in this study.
Coupling Interactions and Trapped Effects for a Triple-Well Potential  [PDF]
Sezgin Ayd?n, Mehmet ?im?ek
Journal of Modern Physics (JMP) , 2011, DOI: 10.4236/jmp.2011.28106
Abstract: Weak and strong coupling interactions and trapped effects have always played a significant role in understanding physical and chemical properties of materials. Triple-well anharmonic potential may be modeled for interpretation of energy spectra from the nuclear to macro molecular systems, and also crystalline systems. Exact periods of a trapped particle in each well of the potential are explicitly derived. For the extended Duffing system, it is predicted that infinite series of both frequency and spatial trajectory approach to exact results in the limit of weak-coupling cases (g→0).
Sero-Prevalence of Toxoplasmosis in Domestic Animals in Benadir Region, Somalia  [PDF]
Ahmed Abdulkadir Hassan Kadle
Open Journal of Veterinary Medicine (OJVM) , 2014, DOI: 10.4236/ojvm.2014.48019
Abstract:

A sero-prevalence survey of Toxoplasmosis in domestic animals (camels, cattle, sheep and goats) was conducted in the Benadir region of Somalia from January to July 2014 to determine the status of the disease. A total of 151 sera were tested, 64 camels; 28 cattle; 29 sheep and 30 goats, for the presence of Toxoplasma gondii antibodies using Latex Agglutination Test (LAT). Totally about 15.9% (24/151) of studied animals showed sero-positive. The sero-prevalence was found in 6.3% of 64 camels, 7.1% of 28 cattle, 34.5% of 29 sheep and 26.7% of 30 goats. The antibody titres to T. gondii positive sera were 2 (8.3%), 9 (37.5%), 4 (16.7%), 4 (16.7%), 4 (16.7%), 1 (4.2%) and 0 (0%) by dilution of 1:2, 1:4, 1:8, 1:16, 1:32, 1:64 and 1:128 respectively. Out of 151 domestic animals (45 male and 106 female), 8 (5.3%) males and 16 (10.6%) females were infected with T. gondii. The study recommends the need for further researches in the whole country using different serological tests and to determine the impact of these findings on the human population. It would be important to increase public awareness on zoonotic potential of Toxoplasmosis.

Comparison of Finite Difference Schemes for the Wave Equation Based on Dispersion  [PDF]
Yahya Ali Abdulkadir
Journal of Applied Mathematics and Physics (JAMP) , 2015, DOI: 10.4236/jamp.2015.311179
Abstract: Finite difference techniques are widely used for the numerical simulation of time-dependent partial differential equations. In order to get better accuracy at low computational cost, researchers have attempted to develop higher order methods by improving other lower order methods. However, these types of methods usually suffer from a high degree of numerical dispersion. In this paper, we review three higher order finite difference methods, higher order compact (HOC), compact Padé based (CPD) and non-compact Padé based (NCPD) schemes for the acoustic wave equation. We present the stability analysis of the three schemes and derive dispersion characteristics for these schemes. The effects of Courant Friedrichs Lewy (CFL) number, propagation angle and number of cells per wavelength on dispersion are studied.
Physico-Chemical and Microbial Quality of Locally Composted and Imported Green Waste Composts in Oman  [PDF]
Saifeldin A. F. El-Nagerabi, Abdulkadir E. Elshafie, Saif N. Al-Bahry, Hasina S. AlRawahi, Huda AlBurashdi
American Journal of Plant Sciences (AJPS) , 2011, DOI: 10.4236/ajps.2011.25079
Abstract: In this work the physical, chemical and microbial properties of four locally composted green waste composts (GWCs) namely Almukhasib, Growers, Plantex, and Super along with four imported GWC (Florabella, Mikskaar, Potgrond, and Shamrock) were studied to evaluate the quality of these composts with the acceptable standards. All composts showed normal physical properties, except the bad smell from sulfur reducing bacteria in Almukhasib, light brown color Plantex and one viable weed seed in Shamrock compost. The germination indexes of the composts comparable to the standard (90%) were 100% for Mikskaar, followed by Shamrock (92%), Florabella (97), Potgrond (95%), Plantex (98%), Growers (77%), and 5% for both Super and Almukhasib. The physical and chemical properties vary considerably as follows: pH 3 - 10.5, 5.1 - 6.5 (standard 5 - 8), electrical conductivity (EC) 0.4 - 10.2 mS·cm-1, 0.8 - 1.8 mS·cm-1(standard 0.0 - 4.0 mS·cm-1), moisture content (MC%) 29% - 43.7%, 64% - 74% (standard 35% - 60%) and water holding capacity (WHC%) 92% - 200% and 400% - 800% for the locally produced and imported composts, respectively. Wide ranges in the chemical properties were expressed as ammonia concentration 512.4 - 1640.1 mg·kg-1, 459.4 - 656.5 mg·kg-1(standard < 500 mg·kg-1), organic matter 17% - 67.6%, and 53.3% - 66.2% (standard 35%) for the locally composted and imported composts, respectively. The concentrations of the heavy metals (Zn, Ni, Pb, Hg, As, Cd, and Cr) were lower than the recommended levels. The average of the bacterial colony forming unit per gram of locally produced and imported composts ranged between 260 - 1740 CFU/g and 330 - 2870 CFU/g, whereas the fungal CFU were 10 - 2800 CFU/g and 27 - 1800 CFU/g, respectively. The most probable number (MPN) for coliform bacteria was 43 - 1100 CFU/g for locally produced composts, and 23 - 480 CFU/g for the imported composts. Therefore, these composts can not be used directly without effective treatment as substrate for plant growth, soil amendment and as biofertilizer.
Retrospective analysis of stoma-related complications
?smet ?zayd?n,Ali Kemal Ta?k?n,Abdulkadir ?skender
Journal of Clinical and Experimental Investigations , 2013,
Abstract: Objective: One of the few factors, that affect life of peoplehave stoma negatively, are complications developing intissues where placed stomas or near stomas. We aimedto evaluate the stoma practices performed frequently inour clinic.Methods: Between January 2008 and December 2011,the records of 96 patients who had stoma retrospectively.Factors indication for stoma, emergency procedure, preoperativestoma, type of stoma and complications sitingrecorded.Results: Ninety-six stoma patients were examined. Ofthem 66 (68%) of them was male, 30 (32%) of them wasfemale. The mean age was 58.8±12.6 years. The mostcommon colostomy patients were diagnosed obstructionof colon(66%) and ileostomy patients were diagnosedanastomosis protective ((75%). The most common typeof stoma were as follows 54 loop colostomy, 16 end colostomy,10 tube gastrostomy and 7 loop ileostomy. Theoverall complication rate was 48%. Both elective andemergency stomas had similar complication rates. Themost common complication included peristomal skin irritation(63%), peristomal infection (25%) and prolapse(5%) The stoma with the highest complications rate wasloop colostomy (57%).Conclusion: In our opinion, mortality and morbidity ofstomas may be decreased with the meticulous surgicalprinciple, regular follow- up and patient education. J ClinExp Invest 2013; 4 (1): 63-66Key words: Stoma, colostomy, ileostomy, complication
CRM a vysledky hospoda ení vybranych firem
Něme?ek Jan
Journal of Competitiveness , 2011,
Abstract: lánek se zabyvá porovnáním a analyzou vysledk hospoda ení vybranych firem se zavedenou technologií a podnikatelskou strategií Customer Relationship Management (CRM) oproti vysledk m hospoda ení firem bez zavedeného CRM. Pomohlo zavedení CRM ke zvy ení a zlep ení kladného vysledku hospoda ení firmy v době finan ní krize? Jak se to projevilo? Obecné povědomí o CRM je mezi mana ery v eské republice ji několik let, ale v porovnání se západními státy EU eské firmy zaostávají v jeho vyu ívání. Patrně i díky doznívající krizi se za íná CRM i v R více prosazovat. Proto je CRM zaváděn, aby pomohl zvy it kvalitu vztah a komunikaci se zákazníky. V lánku jsou uvedeny nej astěj í definice CRM a je provedena analyza hospodá skych vysledk z let 2007 a 2009 u vybranych firem seskupenych dle po t zaměstnanc . V závěru jsou shrnuty vysledky analyzy a p ínosy CRM.
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