KHALSA PUBLICATIONS

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    2182 research outputs found

    A Stochastic Model to Predict Road Accidents in Albania

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    The importance of predicting accident rates lies in the improvement of road infrastructure and the effective implementation of laws and traffic regulations. The statistical change of many phenomena over time is described by time series.  This paper aims to forecast the number of individuals involved in road accidents in Albania by applying SARIMA model approach. This study used monthly number of individuals involved in road traffic accidents in Albania from 2016 to 2023. Using forecasting techniques for the number of traffic accidents can serve as a valuable strategy for achieving various objectives including the implementation of traffic safety campaigns, strategies, and action plans outlined in traffic safety initiatives. The model was found to be effective in capturing the underlying patterns and trends in the data, providing valuable insights for understanding and forecasting traffic accident occurrences in Albania

    Synthesis of Heptylalkanoyldisulfides and Investigation of Their Antimicrobial Properties

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    The paper describes the results of the research of some heptylalkanoyldisulfides as antimicrobial additives to the lubricating oils. Heptylalkanoyldisulfides were synthesized and studied. The synthesized compounds were characterized by spectroscopic techniques. Study of antimicrobial properties of the studied heptylalkanoyldisulfides revealed effective bactericidal and fungicidal activities in suppression of fungi and bacteria allowing them to be used as biocides in storage and transportation of oil products. Antimicrobial efficacy of the studied compounds was determined by zonal diffusion method using the following microorganisms: bacteria, fungi and yeast. The test compounds were added to M-8 oil in mass percent. It is established that their antimicrobial activity is at the level of effectiveness of the widely used industrial additive sodium pentachlorophenolate. Sodium pentachlorophenolate, widely applied as an antimicrobial additive in lubricating oils, was used for comparison. It was determined that they may be used as antimicrobial additives for M-8 engine oil (0.25-1%). As a result of the studies carried out on heptylalkanoyldisulfides, distinct patterns of dependence of antimicrobial efficacy on the structure of alkyl radical were determined. Antimicrobial activity increases by an increase in alkyl radical, i.e., each subsequent member of the disulfide series is biologically more active than the previous one. The increase in antimicrobial activity seems to be due to the fact that the adding each new CH2 group gives one more van der Waals bond, increasing adsorption forces that bind the compound to the receptor in the microorganism. As a result of the studies carried out on heptylalkanoyldisulfides, distinct patterns of dependence of antimicrobial efficacy on the structure of alkyl radical were determine

    Diltiazem-tetraiodide bismuthate (III) based PVC membrane for selective determination of diltiazem hydrochloride

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    A new coated-wire electrode based on PVC membrane plasticized with dioctyl phthalate (DOP) and containing the diltiazem-tetraiodido bismuthate (III) ion association coated on a silver wire was constructed and used for potentiometric determination of diltiazem hydrochloride. The electrode performance was characterized and optimized according to the following experimental criteria: membrane composition, soaking time, working pH range, and response time. The interference caused by different species was investigated as well. The best membrane composition was found to be 49.75% of PVC and DOP, 0.5% ion pair. This sensor showed a linear response with a good Nernstian slope of 57.60±1.38 mV/decade over the concentration range5.0×10-5 – 2.50×10-2 M, the detection limit was 2.88×10-5 M, and it was usable within a wide pH range of 2.5–8.0. The electrode showed a fast response time (18 sec), with a relative long lifetime (2.4 months, 2 h a day). The isothermal coefficient (dE°/dT) of the electrode was calculated and found to be 5.36×10-4 V/℃ within 20 – 80℃, which exhibits a good thermal stability. The coted-wire electrode was successfully applied for the potentiometric determination of diltiazem hydrochloride both in pure form and pharmaceutical preparations. The dissolution test of the drug was carried out as well

    Solutions For Fractional Linear Systems With Hattaf Derivative

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    This paper deals with the analytical solutions of the fractional-order linear systems characterized by DX(t) = AX(t)fractional differential equations. Here D, is the fractional derivative in the Hattaf sense and A is the (2x2)-typenon-singular real coefficient matrix. We present some results related to the existence of analytical solutions of the linearequation systems of the Hattaf fractional derivative. These solutions are provided for three different fractional-orderlinear systems

    Using Proposed Approach to Solve nonlinear Partial Differential Equations

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    The purpose of this research is to employ a new method to solve nonlinear differential equations to obtain precise analytical solutions and overcome computation challenges without the need to discretize the domain or assume the presence of a small parameter, where the method demonstrated a quick and highly accurate solving nonlinear partial differential equations with initial conditions, in compared to existing methods. The phases of the proposed method are straightforward to implement, highly precise, and quickly converge to the correct result.

    Linear Preserves of BP-quasi invertible elements in JB*-algebras

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    In this note, we study one of the main outcomes of the Russo-Dye Theorem of JB*-algebra: a linear operator that preserves Brown-Pedersen-quasi invertible elements between two JB*-algebras is characterized by a Jordan ∗-homomorphism. Earlier, in C*-setting of algebras, Russo and Dye gave a characterization of any linear operator that maps unitary elements into unitary elements; namely a Jordan ∗-homomorphism. Special sorts of linear preservers between C*-algebras and between JB*-triples were introduced by Burgos et al. As a result, if G is a linear operator between two JB*-algebras having non-empty sets of extreme points of the closed unit sphere that preserves extreme points, then there exists a Jordan ∗-homomorphism Φ which also preserves extreme points and characterizes the linear operator G. We also explore the connection between linear operators that strongly preserve Brown-Pedersen-quasi nvertible elements between two JB*-triples and the λ-property of both JB*-triples. Other geometric properties, such as extremally richness and the Bade property of two JB*-algebras or triples under linear preservers, are to be elaborated on in forthcoming research

    Suggested Approach to Solve Nonlinear Ordinary Differential Equations

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    In this research a suggested method has been proposed to solve the  non-linear ordinary differential equations, This method is somewhat similar to the Adomain decomposition  method of solving equations but it is quite different in the using steps  to find the non-linear boundaries , in the suggested method does not use an unknown parameter to calculate non-linear boundaries as well as the steps used to calculate non-linear boundaries are very simple and do not need many and complex steps. we can be called this approach by  Fatima style to solve nonlinear ODE

    Applications of the ideals in the measure theory and integration

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    In this paper, we will represent some applications to various problems of mass theory and integration, by using the concept of local convergences and exhaustive sequences. We will continue the idea of point-wise I -convergence, Ideal exhaustiveness that was introduced by Komisarski [3], and Kostyrko, Sal´at and Wilczy´nski [4]. The equi-integrable introduced in Bohner-type ideal integrals and a new study on the application of symmetric differences have been presented in the theory of mass and continuous functions, continuing the results of Boccuto, Das, Dimitriou, Papanastassiou [2].

    THE FEKETE -SZEGO ̈ PROBLEM OF ANALYTIC FUNCTIONS BASED ON THE DEFERENtIAL OPERTOR AND CERTAIN SUBCLASSES

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    In this paper I use the operators Dmβ,η(η, φ)f, Sm(d, β, η) and Cm(d, β, η).To establish |a3−μa22 | -functional inequalities for the Fekete-Szeg ̈o problem. That’s my main result

    Exponential Fit to Food Degradation Experiment

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    Students in the Principles of Biology I course use a lot of course time preparing solutions each week in their coursebased research experience. This experiment was designed to determine the degradation rates of prepared solutions ofvarious plant-based foods (i.e., Napa cabbage, rice, peanuts, and apple) under refrigeration as a means of reducing theamount of time for solution preparation. Scaling from the original lab procedures, approximately sixty milliliters offiltrate were prepared from the listed foods and testing was conducted on a thrice-weekly schedule. The concentrationof proteins and carbohydrates were measured using the Bradford’s assay and Benedict’s test, respectively. The datarevealed a noticeable trend in degradation in protein for all the samples. The rice sample proved to be an outlier witha marked increase in reducing sugars, while the other samples gradually decreased

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