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A Mathematical Model For Transport And Growth Of Microbes In Unsaturated Porous Soil, Harihar Khanal, Andrei Ludu, Ramesh Chandra Timsina, Kedar Nath Uprety

Publications

In this work, we develop a mathematical model for transport and growth of microbes by natural (rain) water infiltration and flow through unsaturated porous soil along the vertical direction under gravity and capillarity by coupling a system of advection diffusion equations (for concentration of microbes and their growth-limiting substrate) with the Richards equation. (e model takes into consideration several major physical, chemical, and biological mechanisms. (e resulting coupled system of PDEs together with their boundary conditions is highly nonlinear and complicated to solve analytically. We present both a partial analytic approach towards solving the nonlinear system and finding the main …

A Strategy For Achieving Sustainable Urban Development In Coastal Informal Areas Through A Participatory Approach., Reem Elnady, Alaa El-Eashy, Asmaa El Badrawy

Mansoura Engineering Journal

Coastal areas have highly productive economic values for its residents, with huge potentials in fisheries and marine resources. The human factor with social capitals is vital potential in these coastal areas. The inhabitants work on fishing activities, intermediary traders, and other coastal related businesses. However, some of these areas are characterized with unplanned areas, poor livelihood, deteriorated buildings, with no green or public spaces. Moreover, these areas also suffer due to its far locations from cities’ centers and their eliminating from the urban development plans. In general, these problems have transformed them into coastal informal areas. Previous studies proved that …

Compact Gas Sensor Using Silicon-On-Insulator Loop-Terminated Mach–Zehnder Interferometer, Raghi S. El Shamy, Mohamed A. Swillam, Mohamed M. Elrayany, Alaa Sultan

Faculty Journal Articles

In this paper, we propose a compact optical gas sensor based on the widespread silicon-on-insulator (SOI) technology, operating in the near-infrared (NIR) region around the 1.55 µm wavelength. The sensor employs a loop-terminated Mach–Zehnder interferometer (LT-MZI) with a slot waveguide and a strip waveguide for the sensing arm and the reference arm, respectively. For the same arm length, the LT-MZI can achieve a detection limit two times lower than that of the conventional MZI. Different sensor components were designed, and the optimum dimensions were obtained using finite-difference eigenmode (FDE) and finite-difference time-domain (FDTD) solvers. With a sensing arm length of …

Imitation Models Of The Railway Organization For Railway Transport Flows, J Usmonov, T Djuraev

Technical science and innovation

Considered the questions of solving the problem of optimization of cargo traffic management in the railway transport throughout the logistics chain, organizing the formation and implementation of cargo loading plans that do not allow exceeding the maximum and reduce the minimum levels of availability of a particular cargo on the destination road. And also the article justifies the solution of the problem of finding the maximum flow in the railway network, it is noted that in any transport network the maximum flow is equal to the minimum capacity. If the flow is maximal, then there is a section whose transmission …

Research Of New Fireproof Supplied Polymer Composites Based On Epoxy Resin For Metal Structures, Kuvondiq Murtazaev, F.N. Nurkulov, D.N. Mukhiddinov, M.T. Аbdirova

Technical science and innovation

In the article proposes new compositions based on fire retardant expanded polymer composites of epoxy resin ED-20 and phosphorus-containing oligomers, catalysts, aluminum hydroxide and nitrogen-containing compounds.

The obtained sample of fire retardant expanded polymer composites based on epoxy resin, as well as the initial substances, were investigated by IR spectroscopy (Nicolet 5700), thermogravimetric analysis (TG) (SDT Q600) of physical and chemical properties and determination of fire retardant efficiency according to GOST R 53295-2009.

Infrared spectroscopy has been used to determine the bends and epoxy groups that characterize composites, as well as to determine the frequencies of phosphorus, nitrogen, and metal-containing …

Study Of The Thermodynamic Properties Absorbation Sulfur Storage Gas Of Zinc And Copper Industry, Berdiyarov Tilovkabulovich Berdiyarov Dr., Sh. T. Khojiev, S. T. Matkarimov, Sh. Munosibov

Technical science and innovation

The article considers the problems of utilization of industrial gases formed in the production of copper and ore containing sulfur anhydrides. Currently, the composition of process gases entering the gas purification department is approximately 6-7% SO₂, 0.2-0.3% SO₃ and other gases, until sulfuric acid is obtained from these gases, the sulfate is treated in a counter-scheme with 8% sulfate acid. The aim is to first reduce the temperature of the exhaust gases and second to avoid flying components such as as As, F, Se. As a result of the studies, the amount of SO₂ in the …

Gender-Based Characteristics Of Micro, Small And Medium-Sized Enterprises In An Emerging Country: Is This A Man’S World?, Angelica Maria Sanchez-Riofrio, Nathaniel C. Lupton, Segundo Camino-Mogro, Álvaro Acosta-Ávila

Faculty Research, Scholarly, and Creative Activity

Purpose: Worldwide, Ecuador is one of the countries with the most entrepreneurial activity from micro, small and medium-sized enterprises (MSMEs). However, the effect of adopting the US dollar (dollarization), over which the central bank has no control, combined with being mainly an exporter of primary products, as well as strategic currency devaluation by neighboring economies, has created a difficult situation, especially for Ecuadorian women’s MSMEs. This paper aims to study the relationship between female ownership and Ecuadorian MSMEs’ financial, economic and social outcomes.

Design/methodology/approach: The authors compile a near-population panel of 617,804 firm-year observations representing an unbalanced panel of 112,917 …

Machine Learning Based Critical Resource Allocation In Mixed-Traffic Cellular Networks, Mohamed Nomeir

Theses and Dissertations

The proliferation of cellular networks over the past two decades has encouraged the expansion of their use in many modern applications. These applications involve the use of data traffic of different quality of service (QoS) requirements. Some of these requirements are quite stringent such as in the case of critical Internet of Things (IoT) health care, military and homeland security applications. This situation resulted in imposing a variety of resource allocation requirements on the cellular network operation in a simultaneous manner.

In this thesis, we consider the challenging problem of mixed-traffic resource allocation, or scheduling, in cellular networks. We focus …

Fully Integrated On-Device Search And Web-Based Search Framework Incorporating Privacy Controls, Eugenio Marchiori, Donghui Feng, Trystan Upstill

Defensive Publications Series

This publication describes a framework, implemented on a computing device, for integrating search results provided by a user device system-level search with internet-based search results provided by an internet search engine application, while retaining the privacy of a user of the device. The search results may be ranked based on both the user device system-level search and the internet search.

Determining Fuel Quality, Sean Keys

Defensive Publications Series

The quality of gasoline and other fuel used in vehicles may vary with some gas stations selling higher quality fuels than other gas stations. This disclosure describes techniques for determining the quality of fuel sold by gas stations using existing vehicle sensors to monitor the fuel composition and combustion. The sensors may include harmonic and fuel sensors, such as water and ethanol sensors. The vehicle may determine the fuel quality by at least applying a machine learning algorithm to the collected combustion and fuel compensation information and/or may send the collected combustion and fuel compensation information to a remote computing …

Cultivating Classroom Interactions Online During Covid-19: A Case For Using Team-Based Learning, Amanda Olsen, Candace Joswick

Journal of Practitioner Research

Team-based learning, an evidence-based collaborative learning teaching strategy, is a popular instructional model commonly used at the post-secondary level. While this model has shown success in traditional, face-to-face courses, and reports of use in hybrid and asynchronous online settings exist, though are few, no reports of which we are aware account for use in synchronous online teaching and learning. This paper introduces a tool developed to help higher education instructors plan for the implementation of team-based learning in their synchronous online courses along with an illustration of the use of the template planning tool from our own application for a …

Customer Churn Prediction In Telecommunication Industry Using Deep Learning, Samah Wael Fujo, Suresh Subramanian, Moaiad Ahmad Khder

Information Sciences Letters

Without proper analysis and forecasting, industries will find themselves repeatedly churning customers, which the telecom industry in particular cannot afford. A predictable model for customers will allow companies to retain current customers and to obtain new ones. Deep-BP-ANN implemented in this study using two feature selection methods, Variance Thresholding and Lasso Regression, in addition, our model strengthened by early stopping technique to stop training at right time and prevent overfitting. We compared the efficiency of minimizing overfitting between dropout and activity regularization strategies for two real datasets: IBM Telco and Cell2cell. Different evaluation approaches used: Holdout, and 10-fold cross-validation to …

Study And Evaluation Of The Assumptions Of Statistical Methods In Published Educational Research: Al-Mandumah Database As A Model: Review Study, Ejteyad A. Abo Thabit, Nizar N. Ismaeal, Aziz I. Abdulla

Information Sciences Letters

The aim of this research is to study and evaluate the assumptions of statistical methods in educational research published in the Dar Al-Mandumah Database. The non-probability purposive sample was used in the study, and it consisted of 301 educational research divided into three categories (PhD and Masters theses, educational research in curricula, teaching methods and educational issues, and educational research in statistical subjects). To achieve the goal of the research, the “Preferred Reporting Items for Systematic and Meta-Analysis Protocols (PRISMA-P2015) method” was used, and it consists of two phases. The first phase dealt with the study of the statistical methods …

Storytelling During Pandemics– A Focused Review, Mohamed Buheji

Information Sciences Letters

Stories have shaped people life since the beginning of humanity. Telling and sharing stories during pandemics and unprecedented times is an inspiring way. In this paper, we study how storytelling could play an essential role in mitigating, and absorbing the challenges or the spillovers of the aftermath of the COVID-19 pandemic. The influence of storytelling on mental health and wellness during the pandemic is reviewed. The paper focuses on how storytelling could be optimised as an effective tool for changing attitudes and behaviours, especially during the COVID-19 pandemic, where the public is forced to change their lifestyle, over the short …

Asymptomatic And Pre-Symptoms Transmission Of Covid-19 In Heterogeneous Epidemic Network, H. A. A. El-Saka, Ayman Al-Dmour, Ibrahim Obaya

Information Sciences Letters

The diversity of the spread pattern of the Corona virus is one of the most important reasons for the seriousness of the virus. Therefore, in this paper, we present a fractional mathematical SEIAS model that studies many ways of spreading (asymptomatic and pre-symptoms transmission) with the hypothesis of the spread of the virus in a heterogeneous network of individuals. The system consists of nonlinear equations which formed in fractional order. And it turns out that the system has two equilibrium positions (free and endemic positions). We also calculated the disease prevalence threshold (R) within the network. The condition for the …

Remediation Of Pollution In A River By Releasing Clean Water, Ahmed Saleh, Fayez N. Ibrahim, Mohamed Kh. Hadhouda

Information Sciences Letters

Analytical solution has been obtained for one-dimensional advection-diffusion equation with constant coefficients by using Laplace transformation. Also numerical solution has been obtained by using explicit finite difference scheme. In this paper, the initial condition and the boundary condition at the source of pollution (x = 0) were applied to describe the exponential variation in pollutant concentration. Impacts of different parameters controlling the pollutant dispersion have been studied separately with the help of graphs. This publication proved mathematically the fact that the high concentration of pollutant can be reduced by releasing clean water discharges from barrage in a river. For a …

Creativity In Packaging Design As A Competitive Promotional Tool, Dina Elkhattat, Mervat Medhat

Information Sciences Letters

In line with the vast technology, and challenging competition among organizations in the field of industry, recently the food companies recognized the importance of innovative Packaging design as a vital solution and a competitive element among competitors, as it should be unique, adding value to consumers, and well reflects the brand’s identity. In that context, the study of factors affecting consumer attraction and intentions and behaviors will be very beneficial for food companies that tend to produce creative packaging to enhance their brand’s positioning by attracting consumers’ attention towards their products and influence the final purchase intentions. Hence, analyzing the …

A New Fractional Differential Approach: A Combination Between Usual Derivative And A Fractional Differential Operator Without Singular Kernel, Gustavo Asumu Mboro Nchama, Leandro Daniel Lau Alfonso

Information Sciences Letters

In this paper, authors introduce a new fractional differential order operator given as a combination between the usual derivative and a fractional differential operator without singular kernel. The new approach is defined through a fractional integral order and based on the Caputo viewpoint. Some properties are given to illustrate the results. Also calculus of integral of an interesting function is illustrated.

On Weighted Nwikpe Distribution: Properties And Applications, Maryam Mohiuddin, Shabir A. Dar, Arshad A. Khan, M. Ahajeeth

Information Sciences Letters

In this article, two-parameter continuous distribution is introduced. The proposed distribution is obtained by using a weight technique and is referred to as weighted Nwikpe distribution. This distribution is a generalization of baseline distribution that is Nwikpe distribution. Some structural properties of the distribution are derived. These are density function, distribution function, and reliability function, hazard rate function, moments, moment generating function, entropies, order statistics, Bonferroni and Lorenz curves. The method of maximum likelihood estimation has been established for investigating the parameters of the model. The behaviour of the parameters of the distribution is examined by a simulation study. Real …

On Generalize L-Moments Method And Application On Control Chart For Monitoring Fractional, Rates And Proportions Data, Enayat M. Abd Elrazik, Mahmoud M. Mansour

Information Sciences Letters

This paper proposes GL-moments’ method as a generalization to the TL-moments and the L-moments methods. Population GL-moments in terms of the quantile function and shifted Jacobi polynomials were defined. Some relations between GL-moments depending on Jacobi Polynomials were also derived. Furthermore, interpretation of the first two population GL-moments by U-statistics was introduced. Also, we obtained two expressions to estimate the population GL-moments: the first expression, which depends on Downton’s estimator, is a nearly unbiased estimator. Finally, to avoid an upper control limit exceeding one in p-chart, we propose a control chart based on generalized linear moments for monitoring fractional, rates …

Weingarten Isotropic Embankment Surfaces According To Adapted Frame, W. M. Mahmoud, S. M. Abd Elhafez

Information Sciences Letters

The Tubembankmentlike surfaces with adapted frames had discussed in this study. We get the parametric description of the Isotropic Tubembankmentlike Surfaces and give a computational application to evident these surfaces by introducing them in isotropic 3−space. Weingarten of Isotropic Tubembankmentlike Surfaces is also calculated in terms of Gaussian and mean curvatures. Mathematica 3D visualizations are using to create these curvatures. We also present new applications for Tubembankmentlike surfaces in Isotropic space, as well as surface characterization.

Students’ Perspective On Online Assessment During The Covid-19 Pandemic In Higher Education Institutions, Najeh Rajeh Alsalhi, Abdallah Darweesh Qusef, Sami Sulieman Al-Qatawneh, Mohd. Elmagzoub Eltahir

Information Sciences Letters

The main purpose of this analysis was to explore the acceptance of online assessment on the part of students of Princess Sumaya University for Technology (PSUT) in Jordan during the spread of the COVID-19 pandemic. The researchers used a descriptive approach. A questionnaire with 22 items was distributed to a sample of 862 students from a total population of 3446 students of PSUT. SPSS was used to analyze the data. The findings revealed that undergraduate students demonstrated a high degree of acceptance of the implementation of online assessment during the spread of the COVID-19 pandemic. Moreover, the findings also revealed …

Dynamical Analysis Of A Fractional Sirs Model On Complex Heterogeneous Networks, H. A. A. El-Saka, A. A. M. Arafa, Riyad Alshalabi, M. I. Gouda

Information Sciences Letters

In this paper, a fractional SIRS model on heterogeneous complex networks is introduced. The asymptotic local and global stability of equilibrium points are studied, numerical simulation is used to support our theoretical results and show the effect of fractional order q and the influence of connectivity between individuals which represented as ψ(t).

Reformulation Complex Scalar Field Interacting With The Electromagnetic Lagrangian Density By Riemann- Liouville Factional Derivative, Yazen M. Alawaideh, Bashar M. Alkhamiseh, Mansour S. M. Lotayif

Information Sciences Letters

We recast complex scalar fields as interacting field using fractional derivatives. to be more developed By applying the Hamiltonian formulation using fractional derivatives to the complex scalar fields, we applied the Hamiltonian formulation using fractional derivatives to the complex scalar fields. In addition, we observed that the Euler-Lagrange equation and the Hamiltonian equation yield the same result. Finally, we studied an example to elucidate the results.

Using Fuzzy Logic Control System As An Artificial Intelligence Tool To Design Soap Bubbles Robot As A Type Of Interactive Games, Maha M. A. Lashin, Areej A. Malibari

Information Sciences Letters

The presented paper discussed augmented reality for converting industrial chemical spraying robots into soap bubbles robots as an interactive game augmented robot. Also, a fuzzy logic control system (FLCS) designed and structured as an artificial intelligence tool for soap bubbles robot and implemented in programming logic control (automated operating system). Fuzzy system used for predicting the level of soap-water mixture inside the robot.

The Effects Of Fractional Derivatives Of Bio-Heat Model In Living Tissues Using Analytical-Numerical Method, Aboelnour Abdalla, Ibrahim Abbas, Hussien Sapoor

Information Sciences Letters

In this article, the fractional order bioheat model of heat transfer is used to offer a new interpretation to investigate the thermal damage in living tissues under laser irradiations. The effects of thermal relaxation time and the fractional order parameter on the temperature of living tissues and the thermal damages are studied. The basic equation is formulated in the domain of Laplace transform to get the analytical solution. The numerical solution is obtained by using the implicit finite difference method (IFDM). The efficiency and accuracy of this method have been verified using numerical example. Considering the thermophysical properties of living …

Scientific And Practical Importance Of Creating A Concise Dictionary Of Agiotermines, Nigina Tukhtasinova

Scientific reports of Bukhara State University

Abstract. It is an important task for lexicographers to convey the beauty of our national culture through words to the world's book lovers, as well as to create convenience for translators. The words to be given in dictionaries should not only be translated into another language, but should be described in accordance with international lexicographic standards, the word translated into another language should not lose its ethnographic features and be understandable to foreigners. In such cases, it is useful to study the experience of European lexicographers. The translation of terms into the language of translation in the translation of agiomatics, …

Fundamentals And Ideological Content Of The Creation Of Y.V. Goethe's "West-East Collection Of Poems", Muattar Makhsatilloevna Makhmudova

Scientific reports of Bukhara State University

Background. The article tells about the work of the famous German writer Johann Wolfgang Goethe and about the history of the creation of the famous "West-Eastern Divan". Methods. The famous German writer Johann Wolfgang Goethe (1749-1832) was a poet, playwright, literary critic, jurist, orientalist, historian and philosopher, painter, theater critic, naturalist, and scientist and statesman who made discoveries in biology and mineralogy. He was one of the first to use the term "world literature." His 143-volume artistic and scientific legacy includes his works such as Faust, The Sufferings of Young Werther, West-east collection of poems, Muhammad (peace and blessings of …

Aspect Of Universal Values And Their Linguistic Analysis, Navruza Yakhyayeva

Scientific reports of Bukhara State University

Abstract. The following research focuses on universal value analyses and lingvocultural analysis. It primarily focuses on the innovation, in that the concept of linguistic analysis has been combined with the concept of text. Furthermore, this method raises the work's theoretical level. These values therefore have an impact on how citizens are motivated to act as citizens and how their acts as global citizens are validated. Values serve as social action regulators. According to some researchers, education tends to lead to emancipation. "Universal value" refers to uncritically copying the value system of another country, supporting so-called "western" "freedom, democracy, equality, and …

Types Of Speech Acts And Its’ Studying In Linguistics, Shakhrinoz Azimova

Scientific reports of Bukhara State University

Introduction. Pragma-linguistics is a branch of linguistics that examines the interrelationships between speech functions and speech forms. The speech situation is a situation that causes speech. It consists of several components. They are speaker and interlocutors, speech context, speech objectives, speech act as a form of action or activity, and utterance as a product of verbal action. The last studies show that there are some issues in pragma-linguistics related to speech situation and interactions between speech participants. These problems occur as a result of not being able to manage the speech situation properly or not knowing the usage of speech …