the films of cdse pure and doped with copper ratio glass substrate effect od cucomcentration technique thikness doped with copper is an anonmg and the density of state increases

In this study, thermal characteristics of a two-phase closed heat pipe were investigated experimentally and theoretically. A two-phase closed heat pipe (copper container, Fluorocarbon FC-72 (C6F14) working fluid) was fabricated to examine its performance under the effect of input heat flux range of 250–1253 W/m2 , 70% fill charge ratio and various tilt angles. The temperature distribution along the heat pipe, input heat to evaporator section, and output heat from condenser were monitored. A comprehensive mathematical model was developed to investigate the steadystate heat transfer performance of a two-phase closed heat pipe. A steady state analytical model, is presented to determine important parameters on the design of two-phase close

In this study, a theoretical scenario has been used to calculate the electronic current in sensitizer N3 molecule contact to TiO2 semiconductor for electrons in functional solar cells. It is known to play an important role on the compute the eficiency of solar cell. Some parameters of electronic current such as the transition energy, driving force energy, barrier height coupling overlapping values are determined. Transition energy is a necessary parameter to calculate the electronic current in solar cell with using wide polarity solvents Acetic acid, 2-Methoxyethanol, 1-Butanol, Methyl alcohol, chloroform, N,N-Dimethylacetamide and Ethyl alcohol via the quantum donor-acceptor system. Here, we show the results of transition energy can be var

(3) (PDF) Theoretical calculation of the electronic current at N3 contact with TiO2 solar cell devices. Available from: https://www.researchgate.net/publication/362780274_Theoretical_calculation_of_the_electronic_current_at_N3_contact_with_TiO2_solar_cell_devices [accessed May 01 2023].

   This paper aims to prove an existence theorem for Voltera-type equation in a generalized G- metric space, called the -metric space, where the fixed-point theorem in - metric space is discussed and its application.  First, a new contraction of Hardy-Rogess type is presented and also then fixed point theorem is established for these contractions in the setup of -metric spaces. As application, an existence result for Voltera integral equation is obtained.  

This paper presents a new transform method to solve partial differential equations, for finding suitable accurate solutions in a wider domain. It can be used to solve the problems without resorting to the frequency domain. The new transform is combined with the homotopy perturbation method in order to solve three dimensional second order partial differential equations with initial condition, and the convergence of the solution to the exact form is proved. The implementation of the suggested method demonstrates the usefulness in finding exact solutions. The practical implications show the effectiveness of approach and it is easily implemented in finding exact solutions.

       Finally, all algori

Fire incidences are classed as catastrophic events, which mean that persons may experience mental distress and trauma. The development of a robotic vehicle specifically designed for fire extinguishing purposes has significant implications, as it not only addresses the issue of fire but also aims to safeguard human lives and minimize the extent of damage caused by indoor fire occurrences. The primary goal of the AFRC is to undergo a metamorphosis, allowing it to operate autonomously as a specialized support vehicle designed exclusively for the task of identifying and extinguishing fires. Researchers have undertaken the tasks of constructing an autonomous vehicle with robotic capabilities, devising a universal algorithm to be employed

The Arab Muslime Paid agreat attention to the Islamic East, especially after their conquest to the Parisian lands, they went forword to continue their conquest till Transoxiara (the lands beyond the river). The research is included the Islamic efforts to conquest (Transoxiara) , They needed mouch time for more than 40 years to conquest it. To sattle their steps in it they used its leading figures to prevent the breaking of the agreement held between them as they were known for doing this before more than once. The main idea of this research is releated to study that history in the Arabic resources.

  اﻟﺴﯿﺎق ﻓﻲ َأدرك ﻋﻠﻤﺎؤﻧﺎ اﻷواﺋﻞ أﺛﺮَ اﻟﺴﯿﺎق ﻗﺮﯾﻨﺔ ﻣﻦ اﻟﻘﺮاﺋﻦ اﻟﻤﺆﺛﺮة ﻓﻲ ﻣﻌﻨﻰ اﻟﺨﻄﺎب، وﻗﺪ ﻠﻤﺔ ّ وﺗﻤﺜﻞ ﻟﺪﯾﮭﻢ ﻓﻲ ﺟﺎﻧﺒﯿﻦ :اﻷول اﻟﺴﯿﺎق اﻟﻠﻐﻮي اﻟﺬي ﯾﻘﻮم ﻋﻠﻰ أﺳﺎس أن اﻟﻜ ،ﺗﻮﺟﯿﮫ اﻟﻤﻌﻨﻰ وﺗﺤﺪﯾﺪه ِﻜﻮن ﺣُﺴﻨﮭﺎ ورداءﺗﮭﺎ ﻓﻲ ﻧﻈﻤﮭﺎ، ّ ﻻ ﻗﯿﻤﺔ ﻟﮭﺎ ﻓﻲ ﺣﺎل إﻓﺮادھﺎ، وإﻧﻤﺎ ﯾ واﻟﺜﺎﻧﻲ اﻟﺴﯿﺎق اﻟﺤﺎﻟﻲ، وذﻟﻚ ُ ُ ﺑﺮﺑﻄﮭﻢ اﻟﺼﯿﺎﻏﺔ اﻟﻠﻐﻮﯾﺔ ﺑﺎ