Certain Quadruple Hypergeometric Series and their Integral Representations

While investigating the Exton\u27s list of twenty one hyper-geometric functions of four variables and the Sharma\u27s and Parihar\u27s list of eighty three hyper-geometric functions of four variables, we noticed existence of new hyper-geometric series of four variables. The principal object of this paper is to introduce new hyper-geometric series of four variables and present a natural further step toward the mathematical integral presentation concerning these new series of four variables. Integral representations of Euler type and Laplace type involving Appell\u27s hyper-geometric functions and the Horn\u27s series of two variables, Exton\u27s and Lauricella\u27s triple functions and Sharma and Parihar hyper-geometric functions of four variables are established

Some Integral Representations for Certain Quadruple Hypergeometric Functions

we aim in this work at establishing new integral representations of Euler type for the Exton hypergeometric functions of four variables ,  the Sharma and Parihar hypergeometric functions of four variables  and the Lauricella function of four variables , whose kernels include the quadruple hypergeometric functions  defined in [1]. Some particular cases and consequences of our main results are also considered. &nbsp

Certain Integral Representations for Hypergeometric Functions of Four Variables

In the present work, we first introduce five new quadruple hypergeometric series and then we give integral representations of Euler type and Laplace type for these new hypergeometric series, which we denote b

Operational Representations for The Quadruple Hypergeometric Function (4)^F30

Based upon the classical derivative and integral operators we introduce a new symbolic operational representations for the hypergeometric function of four variables (4)^F30. By means of these symbolic operational representations number of generating functions (4)^F30 involving the hypergeometric function  are then found. Some special cases of the main result here are also considered

Intrinsic Competencies: A Leverage Tool for The Performance of Learning Organization (Case Study: Wasit University)

Learning organization performance is based on the sharing of experience and knowledge. The methods and adaptability of learners demonstrate its competitive advantage. However, in a fluctuating context marked by successive crises (economic, health), relying on intrinsic competencies is a crucial advantage for learning companies. This study investigated the influence of intrinsic competencies with three dimensions on the performance of the learning organization. This quantitative study used the questionnaire as a quantifiable tool to obtain data. A pre-test and face validation ensured the questionnaire’s validity. The analytical method is used in this study. Path analysis and SEM were applied in this study to test hypotheses. The influence of intrinsic competencies dimensions (Organizational Resources, Human Resources Strategies, Employees Capabilities) on the performance of learning organizations is the most prominent conclusion. The learning organization should adopt a learning and teaching culture where people collaborate and think together to constantly improves to enhance their performance

Simulation of grid connected THIPWM-three-phase inverter using SIMULINK

This paper presents a grid connected system. Three phase DC-AC inverters used to convert the regulated DC power to AC power suitable for grid connection. Third harmonic injection PWM (THIPWM) was employed to reduce the total harmonic distortion (THD) and for maximum use of the voltage source. the accurate generation of THIPWM minimize the THD and make the inverter suitable for grid connection, by synchronizing the inverter voltage with the grid voltage. The application of THIPWM to inverter increases efficiency of the inverter. Simulation results validate the developed model and the proposed system

Employing natural lighting systems technology in raising environmental efficiency in educational buildings

Studies were carried out to increase dependence on day lighting to illuminate the buildings because of their psychological and health benefits ,and recent research has shown that exposure to artificial lighting for long periods cause health damage. As a result, many modern and sophisticated systems has emerged to introduce day lighting into the building to integrate with the traditional system (windows). These systems are based on advanced technology and can be available at relatively low cost, especially light tubes that integrated with traditional lighting (windows) to light deep spaces. Hence this research introduces new methodology added by using one of the modern lighting systems (light tubes) in the design process of buildings, and achieve coherence and efficiency in lighting levels inside the deep spaces by combining traditional and modern system, using computer. Hence the research problem consists in the lack of local studies that link traditional systems (Windows) and modern systems, particularly light tubes to light up the deep spaces. The goal of the research, is to integrate traditional systems (Windows) and modern systems, (light tubes), within a unified practical framework to employ light tubes locally in buildings. So this paper first dealt with day lighting technology systems and then chose the (light tubes) for its high efficiency, and distinctive characteristics apart from being inexpensive. Then the study adopted the rate of uniformity concluded from the application practical side to determine lighting levels and the efficiency of the merger between the two systems down to the final conclusions of the framework and the imposition of hypotheses. Key words: Uniformity in lighting levels , light tubes, Visual comfort, Environmental efficiency, integration between window and lighting pipes

Workaholism, sleep disorders, and potential e-learning impacts among Menoufia university staff during COVID–19 pandemic

Background: Workaholism is described as a constant, internal drive to work and behavioral addiction to work. Studies have shown the negative associations between workaholism, job performance, and health results as disrupted sleep. The purpose of this research was to compare the prevalence of workaholics among the academic staff of practical and theoretical Faculties in Egyptian universities using the Dutch Workaholism Scale (DUWAS) and to determine associated sleep problems. Also, it studied the added impact of E-learning on the prevalence of workaholism frequency during the COVID-19 pandemic. Design and Methods: A cross-sectional study was conducted among 336 participants. Work addiction was assessed using DUWAS (17 items) as well as questionnaires on personal, occupational characteristics, and sleep problems. DUWAS scale was repeated after six months during COVID 19 pandemic to investigate the impact of E-learning on the workaholic behavior of the studied groups. Results: Our study revealed that the prevalence of workaholism was 33 percent. 32.8% and 33.7% were listed for the faculties of Medicine and Arts, respectively. After the COVID-19 pandemic, workaholic frequency was significantly increased to be 46.4%. Adjusted logistic regression analysis showed that workaholism had negatively impacted sleep in terms of difficulty initiating sleep, difficulty maintaining sleep, and insufficient sleep. Conclusion: The prevalence of workaholism appears to be high among university staff members especially after COVID-19 crisis. Sleep problems were linked to workaholics more than other workers. We recommend encouraging employees to work to their contracted hours, as excess work over extended periods may have adverse effects not only on organizational productivity but also on their health

A Case Study: Layout Optimization of Three Gorges Wind Farm Pakistan, Using Genetic Algorithm

Wind is an important renewable energy source. The majority of wind farms in Pakistan are installed in Jhimpir, Sindh Wind Corridor. At this location, downstream turbines encounter upstream turbines’, wake, decreasing power output. To maximize the power output, there is a need to minimize these wakes. In this research, a method is proposed to maximize the power output using a Genetic Algorithm (GA). Hub heights and inter-turbine spacing are considered variables in this method. Two wind farms located at Jhimpir, Sindh, namely, Second and Third Three Gorges Wind Farms (TGWFs), have been analyzed. Three different cases are considered to maximize the power output. In Case 1, thesame hub heights and inter-turbine spacing without wake effects are considered. In Case 2, the same hub heights and inter-turbine spacing with wake effects are considered. In Case 3, variable hub heights and inter-turbine spacing with wake effects are considered. The results revealed that TGWFs, with variable hub heights and inter-turbine spacing, produce more power output. It is also revealed that the increase in power output, in the case of two different hub heights, is greater in comparison to three different hub heights. Eventually, the proposed method may help in the layout optimization of a wind farm

Prosopis Plant Chemical Composition and Pharmacological Attributes: Targeting Clinical Studies from Preclinical Evidence

Members of the Prosopis genus are native to America, Africa and Asia, and have long been used in traditional medicine. The Prosopis species most commonly used for medicinal purposes are P. africana, P. alba, P. cineraria, P. farcta, P. glandulosa, P. juliflora, P. nigra, P. ruscifolia and P. spicigera, which are highly effective in asthma, birth/postpartum pains, callouses, conjunctivitis, diabetes, diarrhea, expectorant, fever, flu, lactation, liver infection, malaria, otitis, pains, pediculosis, rheumatism, scabies, skin inflammations, spasm, stomach ache, bladder and pancreas stone removal. Flour, syrup, and beverages from Prosopis pods have also been potentially used for foods and food supplement formulation in many regions of the world. In addition, various in vitro and in vivo studies have revealed interesting antiplasmodial, antipyretic, anti-inflammatory, antimicrobial, anticancer, antidiabetic and wound healing effects. The phytochemical composition of Prosopis plants, namely their content of C-glycosyl flavones (such as schaftoside, isoschaftoside, vicenin II, vitexin and isovitexin) has been increasingly correlated with the observed biological effects. Thus, given the literature reports, Prosopis plants have positive impact on the human diet and general health. In this sense, the present review provides an in-depth overview of the literature data regarding Prosopis plants' chemical composition, pharmacological and food applications, covering from pre-clinical data to upcoming clinical studies