Title ON THE HYERS-ULAM STABILITY OF $\\varphi(x) + \\alpha x + \\beta = 0$ AND ITS APPLICATIONS Paper ID xL9w8 Keywords Hyers-Ulam stability; linear perturbation; polynomial; power series; zero; approximation. Abstract Read More... The aim of this paper is to give a general result on the Hyers-Ulam stability of the functional equation $\\varphi(x) + \\alpha x + \\beta = 0$. Our result includes, as particular cases, the results due to Li and Hua [4], Najati and Rassias [5], and due to Pimsert, Laohakosol and Hengkrawit [6]. Access Full Text (PDF)

 Title Analytical Solution for a Double-periodic Multi-well Reservoir Systems Paper ID pDeXk Keywords oil field development, multi-well reservoir systems, Weierstrass elliptic functions Abstract Read More... This work is devoted to the modeling of oil fields development with a multi-well systems located in a homogeneous closed reservoir of constant thickness and working under pseudo-steady state conditions. For these purposes, a closed reservoir is represented as an element of unbounded doubly-periodic array of multi-well clusters, and the inflow conditions in multi-well systems are described by the Weierstrass elliptic functions.\nThis approach allows us:\n• to find the pressure distribution and the field of fluid velocities for any wells location in the reservoir;\n• to calculate the productivity index (PI) and the Dietz’s shape factor (CA) for any wells location in the reservoir;\n• to establish the optimal wells location in the reservoir, maximizing the multi-well productivity index (MPI) of the reservoir. Access Full Text (PDF)

 Title ON THE STABILITY OF THE MIXED TYPE FUNCTIONAL EQUATION IN BANACH MODULES Paper ID JH1Im Keywords Hyers-Ulam stability, Hyers-Ulam-Rassias stability, mixed type functional equation, Banach module. Abstract Read More... In this paper, we prove the stability of a mixed type functional equation of the form \\begin{align*} f&(x+y+az) - f(x+y) - f(y+az) - f(x+az) \\\\ & + f(x) + f(y) + \\frac{a^2 + a}{2} f(z) + \\frac{a^2 - a}{2} f(-z) = 0 \\end{align*} in Banach modules over a unital Banach algebra. Access Full Text (PDF)

 Title MATHEMATICAL SIMULATION OF FLUID FLOW AND INCLUSION BEHAVIOR IN A TUNDISH EQUIPPED WITH A TURBULENCE INHIBITOR AND A GAS CURTAIN Paper ID SGDlq Keywords Inclusion, tundish, gas curtain, turbulence inhibitor. Abstract Read More... Mathematical modelling was used to study the fluid flow behavior and the inclusions removal in a continuous casting tundish built on a 2/5 real scale equipped with a turbulence inhibitor and a gas curtain. The fluid flow behavior and the inclusions removal was mathematically simulated using the k- model for turbulent flow; the inclusion trayectories and the gas flow behavior were modeled with the Eulerian-Lagrangian and Eulerian-Eulerian models, respectively. Three cases were studied for a constant gas flow rate of 596 ml/min. The arrangement of turbulence inhibitor and gas curtain located 0.12 m before the nozzle outlet presents the highest inclusion removal in the slag phase with an average of 79.44 % of alumina particles removed. The mathematical simulation results were in good agreement with physical modeling results previously reported. Access Full Text (PDF)

 Title THE EFFECT OF LEAD ON THE PROCESS OF SPERMATOGENESIS IN MALE ALBINO RATS Paper ID Oy1qC Keywords seminal glands (testis), epididymis (appendage testis), spermatogenesis, spermatogenic cells, Sertoli cells, lead acetate Abstract Read More... Using histological, morphometric and statistical methods explored the effects of lead acetate on the process of spermatogenesis in the testes of male albino rats. Investigations were carried out using a digital microscope Axio Imager.M2 and automatic cell counter Countess ™. It is shown that when exposed to lead acetate a decrease in the production of all populations of spermatogenic cells, decreased spermatogenesis index and an index of relaxation (tension spermatogenesis), the increase in the index of ripening, index meiotic activity and germinative index, which indicates a decrease in the functional activity of the testes. On preparations it is possible to see that after influence of acetate of lead the head of spermatozoa becomes more roundish, breaks of tails observed. Lead acetate reduces the productivity of the seminal glands, which leads to the decrease of the concentration of spermatozoa, and their viability. The results of the studies suggest a negative impact of lead acetate in the course of the process of spermatogenesis in the testes of male white rats. Access Full Text (PDF)

 Title Size selective separation of CdS nanoparticles functionalized by methy methacrylate Paper ID yToD5 Keywords methyl methacrylate, Size selective, Hydrophilic, CdS nanoparticles, Molecular sieves Abstract Read More... We herein present simple one-step synthesis of CdS nanoparticles in methyl methacrylate medium at reasonably lower temperature using sodium sulphide as source of Sulphur. The isolated greenish yellow particles are easily dispersible in alcoholic and aqueous medium. The optical spectra indicate blue shift about of 460 nm. The hydrophilic nanoparticles do show photoluminescence and the emission bands are centered around 600 nm. We have developed an easily size selective separation method by using methyl methacrylate (MMA) as a dual role of molecular sieves and surfactant to functionalization CdS nanoparticles with narrow size distribution. Thus, they were useful for bio-labeling with multi-colors at the same time. Access Full Text (PDF)

 Title EFFECT OF FIBER LOADING AND SURFACE MODIFICATION ON TENSILE BEHAVIOUR OF NATURAL ARECA COMPOSITES Paper ID 4GmVC Keywords Areca fiber, fiber fineness, length distribution, tensile strength, tex Abstract Read More... In this investigation, two thousand areca fibers were randomly taken; length distribution, weight distribution and fineness were analysed. It was shown that fibers with length of 26-43 mm accounts for 88% of the total number and the average length of areca fiber was 38-40 mm. The average fineness of the areca fibers was 131.52 tex. Areca fibers were treated with sodium hydroxide with concentrations from 2% to 10% separately and tensile strength of fibers found to decrease with increased alkali density. Tensile strength of areca/epoxy composites was investigated as a function of fiber loading and for alkali and permanganate treatments given to fiber. The highest tensile strength, 14.54 MPa was observed in 6% NaOH treated areca composites with 60% fiber loading. No significant difference in tensile strength of composites was noticed on permanganate treatment of areca fibers. Access Full Text (PDF)

 Title COLOR TEXTURE CLASSIFICATION USING HYBRID FEATURES FOR SKIN IMAGE Paper ID Uue3w Keywords DLBP, LBP, Gabor, Hybrid feature, Skin image Abstract Read More... This paper proposes a new approach for color texture classification using hybrid feature. This method extract color texture features from texture image and skin image for texture classification. The problem of texture classification exists in several areas such as computer vision, image analysis, medical images, remote sensing, image retrieval, object based image coding and engineering design. The proposed features are robust to image rotation and less sensitive to noise image.The objective of this study is to classify the various skin diseases using texture feature. Hybrid feature is proposed by integrating statistical, Gabor, Local Binary Pattern (LBP) and Dominant Local Binary Pattern (DLBP) features for feature extraction. In this study, the proposed hybrid feature is used to classify the skin images. χ2 distance measure is used to classify the skin disease in this paper. After classification, several levels of testing are done using Outex, Brodatz and medical images. Access Full Text (PDF)

 Title Influence of usefulness and usability perceived in the adoption of mobile learning in students of economics and administrative sciences Paper ID w1yzM Keywords usefulness, usability, university students, usage intention Abstract Read More... The decision making process to adopt mobile learning is influenced by many factors. On account of this, studies focused on evaluating the acceptance of mobile learning have found that usefulness and usability perceived have been consolidating by the main predictors of acceptance of mobile learning. In order to explore the set out issues, it seeks to examine the attitudes against the acceptance of mobile learning in students of Economics and Administrative Sciences of Metropolitan Institute of Technology (ITM in Spanish) of Medellin-Colombia. \nAn exploratory type research was conducted using a questionnaire given to 325 students of the Economics and Administrative Sciences School of ITM. Through this questionnaire, it seeks to identify the influence of usefulness and usability perceived against the implementation of mobile learning.\nThe results of the variation analysis of normative beliefs and attitudes toward mobile learning is laid out putting the respondents into groups which are available to compare their responses to differentiate them respect to categories such as gender, experience in e -learning, age and the number of semesters taken. Access Full Text (PDF)

 Title The role of music in building vocabulary of West Tirunelveli engineering students: An innovative method in English Language Teaching. Paper ID hM40K Keywords Music, Motivation, Vocabulary Building, Second Language Acquisition (SLA) Abstract Read More... The purpose of the study is to explore the effect of music in the class room on enhancing vocabulary building. The study was conducted among 77 undergraduate Engineering Students of West Tirunelveli. A qualitative survey design was used in this study. The study revealed that Listening Music in the class room method (LMCM) helps the learner to recall the targeted words, motivates, entertains the students in the class room and offers right pronunciation practice too .The study also found that the Listening lecture method (LLM) could not help the learners to recall the vocabularies and makes learners boredom in the class room and it allows them to learn local dialects rather standard pronunciation. Recommendations were made to use this effective method (LMCM) in the class room in order to build vocabulary skills effectively. There is no doubt that a strong relationship between Music and Second language Acquisition (SLA). Access Full Text (PDF)

 Title ABOUT FEATURES OF GRASS BRUNCHING Paper ID Mwb8W Keywords Carbohydrate and protein metabolism, physiological processes, ecological phases of grass tillering. Abstract Read More... Tillering of grasses is based on the formation of the basal zone of shortened internodes and initiation of buds of a certain capacity, and it is completed by its transition to the growth, differing by peculiar morphological and biochemical features in its development. Access Full Text (PDF)

 Title FUNCTIONALITY DETERMINATION BY THE ANALYTICAL CALCULATION Paper ID KYE39 Keywords Pipeline, operability, saddle, main beam Abstract Read More... In the following chapters calculations of load parameters of a main pipe saddle beam at a depth of 929 m in the pit no. 2 of the Dukla Mine, Lazy Mine, o.z. of OKD, a.s. are performed. We consider individual profiles as beams on two supports, since for the period of the pit operation it is possible to think that at the point of fixing the profiles into concrete masonry a slight deformation took place. Access Full Text (PDF)

 Title GENERALIZED HYERS-ULAM STABILITY OF SOME FUNCTIONAL EQUATIONS IN 2-NORMED SPACES Paper ID AUAf3 Keywords generalized Hyers-Ulam stability, Cauchy additive functional equation, additive mapping, Jensen functional equation. Abstract Read More... In this paper, we investigate the generalized Hyers-Ulam stability of the Cauchy additive functional equation and Jensen functional equation in the class of functions from 2-normed spaces into 2-Banach spaces. Access Full Text (PDF)

 Title Long-Term Results of 23-Gauge Pars Plana Vitrectomy in Patients with Idiopathic Vitreomacular Traction Syndrome Paper ID OQbAL Keywords Idiopathic vitreomacular traction syndrome, optical coherence tomography, pars plana vitrectomy Abstract Read More... Idiopathic vitreomacular traction (VMT) syndrome results from persistent vitreoretinal adhesions (figure 1) in the setting of partial posterior vitreous detachment (PVD). The common symptoms associated with VMT syndrome include decreased visual acuity, metamorphopsia, micropsia and photopsia.We aimed to present the long-term outcomes of 23 gauge (G) pars plana vitrectomy (PPV) in patients with idiopathic vitreomacular traction syndrome. In this retrospective study evaluated the results of 42 eyes of 40 patients who underwent PPV for low vision and/or metamorphopsia secondary to idiopathic VMT syndrome for long time. Baseline and postoperative data of BCVA, CMT and IOP at the end of follow up time were compared. The patients who were followed-up less than 24 months, had diabetes mellitus, retinal artery or vein occlusion, a history of retinal detachment, age related maculopathy, macular hole and those who underwent PPV in combination with phacoemulsification were excluded.The mean age of the patients was 67.2 ± 5.5 years old and the average follow-up period was 31.5 ± 3.3 (range: 24–37) months. During the follow-up period, the mean best-corrected visual acuity (BCVA) improved from 0.87 ± 1.10 logMAR to 0.47 ± 0.73 logMAR (p= 0.001). The mean central macular thickness (CMT) decreased from 486 ± 94 µm to 263 ± 45µm (p<0.0001). Cataract formation was recorded in 50 % of the 30 phakic eyes during the follow-up period. The mean intraocular pressure (IOP) was increased from 16.1 ± 2.01 mm Hg to 18.9 ± 3.6 mm Hg (p=0.014). Postoperatively glaucoma and macular hole 9.5 %; 4.7 % were recorded, respectively. Macular edema was persisted in 7.1 % eyes up to 7 months postoperatively. No observed endopthalmitis, retinal detachment and intraocular hemorrhage. In this study, 23 G PPV for idiopathic VMT resulted in significant improvements in the BCVA and CMT. The most common complication was cataract formation. Glaucoma, macular hole and persistent macular edema were recorded in some patients in this study. Access Full Text (PDF)

 Title Improved Bounds for the Extremal non-trivial Laplacian Eigenvalues Paper ID DFgc2 Keywords Laplacian eigenvalues, upper bounds, lower bounds,eigenvalue inequalities. Abstract Read More... Let G be a simple connected graph and its Laplacian eigenvalues be μ₁≥μ₂≥⋯≥μ_{n-1}≥μ_{n}=0. In this paper, we present an upper bound for the algebraic connectivity μ_{n-1} of G and a lower bound for the largest eigenvalue μ₁ of G in terms of the degree sequence d₁,d₂,...,d_{n} of G and the number |N_{i}∩N_{j}| of common vertices of i and j (1≤i14MadenBuyukkose. Access Full Text (PDF)

 Title FIRST QUANTITATIVE ANALYSIS OF ESSENTIAL AND TRACE ELEMENTS IN FRANKINCENSE FROM BOSWELLIA SACRA USING ICP-OES Paper ID NEZox Keywords Frankincense, Boswellia sacra, Inductively Coupled Plasma, Optical Emission Spectrometry Abstract Read More... A total of 10 mineral elements (Ca, Na, Mg, B, Fe, Al, Sn, P, Sr, and Cr) were quantitatively determined in six different grades of Omani frankincense resins and leaves of Boswellia sacra. Kjeldahl-assisted acid digestion was used for all samples and their element contents were determined using Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). Heavy metal contents in the investigated samples were found at different levels. The concentration of the analyzed samples was found in the following decreasing order: Ca > Na > Mg > B > Fe > Al > Sn >P > Sr >Cr. The Ca concentration (287-790 mg/100g) showed the highest mineral content in all samples followed by the two metals Na and Mg. The abundance of these essential elements supports the use of frankincense in dietary and nutritional improvement. Elements B, Fe, Al, Sn, P, Sr, and Cr were detected in lower level and they were decreasing from B to Cr. All other minerals were undetectable above their limits of detection. Shabi frankincense (SF), Hougari Regular (HR) and leaves (LL) contained relatively high total amounts of minerals with good elements-correlation compared to Hougari Yellow (HY), Royal Hougari White (RHW), and Super Hougari Green (SHG). Based on the results obtained in this study, ICP-OES is a suitable analytical technique for routine determination of heavy metal concentration in plant resins. The similar mineral profile of the various grades of resin studied supported our previous findings that the grading system has no scientific background. Access Full Text (PDF)

 Title Morphology of Caravansaries in Iran\'s Safavid Era Paper ID YNl5t Keywords Morphology, Caravansary, Safavid architecture, Packing Rule, Resuscitation Abstract Read More... This article is going to study and summarize current types of caravansary in Iran\'s Safavid era. Method of research is based on the survey and population which considers the thirteen suburban caravansaries and one caravansary has been put aside from the population because of the disagreement about the construction period. Since the importance of resuscitation of traditional spaces and the necessity of paying attention to architectural strength points in different time periods, this kind of research seems very essential. The results of this research show that there are four different types of caravansaries. \nType I are four porches caravansaries which have the most percentage. Type II is caravansaries with two central yards in which the usage of yard has the most emphasize. Type III is two porches caravansaries and their principal feature is to meet the basic requirements of travelers. Finally type IV is caravansary with eight ears angles that has the defensive aspect. By considering done studies, caravansary with two central yards can be added to the previous studies of typology of caravansaries in terms of climate. Access Full Text (PDF)

 Title Factor Analysis of Effectiveness of Professional Conducts Regarding Optimal Performance in Nutrition of Wheat; a Case Study of Wheat Growers in Northern Khuzestan Paper ID miIgC Keywords professional conducts, wheat optimal nutrition, the wheat growers in northern Khuzestan. Abstract Read More... The present study is generally concentrated on factor analysis and effectiveness of the professional behavior with respect to optimal nutrition of the wheat. The samples encompass 23485 wheat growers of northern Khuzestan. 302 samples were selected by applying Cochran\'s formula through Random proportional-to-size sampling. Data were collected through the questionnaire, the validity of which was verified by university professors and administrative experts. To examine the reliability of the questionnaire, Cronbach\'s alpha coefficient was applied and reported to be 0.81 respectively. Data were analyzed through SPSS. Factor analysis indicated that the effective factors, regarding the nature of the four intended economic, promoting, structural, and natural independent variables, were able to reach 65.68% of the variables\' variance. The other 34% variance was related to other factors not predicted in the present study. The findings show that the price of the fertilizer used by farmers, soil condition in that region, the absence of the consulting companies related to wheat nutrition, and regional climate are the main contributors in defining the farmers professional conducts. Access Full Text (PDF)

 Title EFFECTS ON STRUCTURAL BEHAVIOUR OF DAMAGES IN STEEL LATTICE TOWER Paper ID 426C5 Keywords Damaged steel lattice tower, Shaking table, Finite element method, Seismic excitation Abstract Read More... Behaviroual changes of 4 legged self-supporting steel lattice tower, which has been damaged due to several reasons namely wind, earthquake loads, faulty workmanship, inadequate material and impact were experimentally and numerically investigated under dynamic loads. To this end, scaled-down steel lattice tower structure was constructed. The structure was subjected to three different earthquake loadings on a shaking table. Mode frequency, stiffness, energy dissipation capacity, displacement capacity were obtained under these conditions. The damaged structure was formed by taking one of the diagonal elements in the earthquake direction out. The same earthquake loads were applied to the damaged structure on the shaking table. To cause additional damage to already damaged structure, one diagonal rod was taken out and experiments were repeated. Damaged and non-damaged structures were compared. For each of the three different conditions tested on shaking table, finite element method was used for numerical analysis, and experimental and numerical results were compared Access Full Text (PDF)