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Hydrogen Production by Water Electrolysis Via Photovoltaic Panel

Hydrogen fuel is a good alternative to fossil fuels. It can be produced using a clean energy without contaminated emissions. This work is concerned with experimental study on hydrogen production via solar energy. Photovoltaic module is used to convert solar radiation to electrical energy. The electrical energy  is used for electrolysis of water into hydrogen and oxygen by using alkaline water electrolyzer with stainless steel electrodes. A MATLAB computer program is developed to solve a four-parameter-model and predict the characteristics of PV module under Baghdad climate conditions. The hydrogen production system is tested at different NaOH mass concentration of (50,100, 200, 300) gram. The maximum hydrogen production rate is 153.3 ml/min, the efficiency of the system is 20.88% and the total amount of hydrogen produced in one day is  220.752 liter.

 

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Publication Date
Sun Jun 07 2015
Journal Name
Baghdad Science Journal
Optimum conditions for Inulinase production by Aspergillus niger using solid state fermentation

Thirty local fungal isolates according to Aspergillus niger were screened for Inulinase production on synthetic solid medium depending on inulin hydrolysis appear as clear zone around fungal colony. Semi-quantitative screening was performed to select the most efficient isolate for inulinase production. the most efficient isolate was AN20. The optimum condition for enzyme production from A. niger isolate was determined by busing a medium composed of sugar cane moisten with corn steep liquor 5;5 (v/w) at initial pH 5.0 for 96 hours at 30 0C . Enzyme productivity was tested for each of the yeast Kluyveromyces marxianus, the fungus A. niger AN20 and for a mixed culture of A. niger and K. marxianus. The productivity of A. niger gave the highest

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Publication Date
Wed Apr 01 2009
Journal Name
Journal Of The Faculty Of Medicine Baghdad
Production of antibacterial agent from Streptomyces griseus by using Semi Solid Fermentation

Backround: The Solid state fermentation has several advantage including absence of free water , reduced volume of production media utilized for high products and the relatively low costs of production.
Methods: Thirty local isolates of soil obtained from Genetic Engneering and Biotechnology Institute. Nutrient agar was used to growth strains examination to antibacterial agent and Wheat bran and fish meal were used in combination (0-100%of each )and divided in 10 gm lost /flask . Each flask is inoculated with different numbers of Streptomyces spores and incubated for 5 days at 28°C, then the supernet was extracted and were assayed as antibacterial
Results: The ability of 30 local isolates of Streptomyc

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Publication Date
Mon Oct 03 2022
Journal Name
Egyptian Journal Of Chemistry
Improving Biogas Production from Rice Husk Waste by Mixing with Pomegranate peels Waste by using Anaerobic Digestion

Biogas is one of the most important sources of renewable energy and is considered as an environment friendly energy source. The major goal of this research is to see if rice husk (Rh) waste and pomegranate peels (PP) waste are suitable for anaerobic digestion and what effect NaOH pre-treatment has on biogas generation. Rice husk and pomegranate peels were tested in anaerobic digestion under patch anaerobic conditions as separate wastes as well as blended together in equal proportions. The cumulative biogas output for the blank test (no pretreatment) was 1923 and 2526 ml, respectively using a single rice husk (Rh) and pomegranate peel (PP) substrates. The 50% rice husk digestion and 50% of pomegranate peels for blank test gave the result 224

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Publication Date
Tue Mar 26 2019
Journal Name
Iraqi Journal Of Science
Classical and Statistical Optimization by Response Surface Methodology For Enhancing Biomass and Bacteriocin Production by Lactobacillus Plantarum

Response surface methodology (RSM) based on central composite design was successfully applied to redesign MRS media for maximizing both biomass and bacteriocin production from Lactobacillus plantarum NH40. First, glucose and yeast extract were chosen as the best carbon and nitrogen sources based on classical optimization results of one factor at time which also revealed the possibility of eliminating peptone and meat extract from the original composition of medium without affecting the growth and bacteriocin production. Statistical experimental design based on a regression model generated using the Design expert 7 software showed that the optimum concentrations of glucose, yeast extract, tween80, NH4Cr, CH

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Publication Date
Tue Jun 30 2009
Journal Name
Iraqi Journal Of Chemical And Petroleum Engineering
Phosphorus Removal from Water and Waste Water by Chemical Precipitation Using Alum and Calcium Chloride

Phosphorus is usually the limiting nutrient for eutrophication in inland receiving waters; therefore, phosphorus concentrations must be controlled. In the present study, a series of jar test was conducted to evaluate the optimum pH, dosage and performance parameters for coagulants alum and calcium chloride. Phosphorus removal by alum was found to be highly pH dependent with an optimum pH of 5.7-6. At this pH an alum dosage of 80 mg/l removed 83 % of the total phosphorus. Better removal was achieved when the solution was buffered at pH = 6. Phosphorus removal was not affected by varying the slow mixing period; this is due to the fact that the reaction is relatively fast.
The dosage of calcium chloride and pH of solution play an importa

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Publication Date
Sun Apr 09 2017
Journal Name
Ibn Al-haitham Journal For Pure And Applied Sciences
Crystal Growth of Ceasium Hydrogen Sulfate Salts 4CsHSO

Single crystal of CsHSO4 component was grown by slow evaporation method of aqueous solution with normality N=1 . The study shows that the importance of the process of Recrystal growth of CsHSO4 crystals. The results show the improve of the characteristics of crystals (transparent, size, shape, number and quality) . By X-Ray diffraction, the crystal structure of these crystals have been confirmed by measurement constants of unit cell of crystal lattice. The vibration modes of crystals were studied by FTIR (Fourier Transform Infrared) technique. Finally, achieving the study of microstructure of crystals by polarization of microscopy that is supported with hot stage at different temperatures. The changes occur on these crystals by changing

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Publication Date
Thu Jan 04 2024
Journal Name
Journal Of Accounting And Financial Studies ( Jafs )
Achieving customer satisfaction by booking electronic flight tickets via the Internet of Things technology

Abstract:

                The aim of this research is to highlight the importance of achieving customer satisfaction by using information technology and Internet networks in the process of purchasing flight tickets, and switching from the traditional method of purchasing and payment operations to the electronic method, to reduce the financial and non-financial risks associated with the traditional purchasing process, as well as saving time, effort and costs for the customer. The researcher used the deductive approach in linking the variables (achieving customer satisfaction and Internet of Things technology for booking electronic tickets)

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Publication Date
Mon Jul 01 2019
Journal Name
Journal Of Physics: Conference Series
Cu (In, Ga) Se2 an absorber layer of photovoltaic devices

CIGS nanoink has synthesized from molecular precursors of CuCl, InCl3, GaCl3 and Se metal heat up 240 °C for a half hour in N2-atmosphere to form CIGS nanoink, and then deposited onto substrates of soda-lime glass (SLG). This work focused on CIGS nanocrystals, indicates their synthesis and applications in photovoltaic devices (PVs) as an active light absorber layers. in this work, using spin-coating to deposit CIGS layers (75 mg/ml and 500 nm thickness), without selenization at high temperatures, were obtained up to 1.398 % power conversion efficiency (PCE) at AM 1.5 solar illumination. Structural formations of CIGS chalcopyrite structure were studied by using x ray diffraction XRD. The morphology and composition of CIGS were studied using

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Publication Date
Thu Dec 23 2021
Journal Name
Iraqi Journal Of Science
The Effect of Magnetic Water on The Production and Physiological Traits in The Quail (Coturnix coturnix (Linnaeus, 1758))

An experiment is conducted to determine the effect of magnetic water on the production performance and blood characteristics of common quail, Coturnix coturnix (Linnaeus, 1758). The experimental treatments included T1 = control treatment, T2 = drinking water magnetization at1000 gauss, T3 = drinking water magnetization at 1500 gauss, T4 = diet sprayed with magnetized water 1000 gauss, T5 = diet sprayed with magnetized water 1500 gauss, each treatment with three replicates. The results showed significant superiority of control group in the body weight, weight gain and feed intake compared with treated groups. The egg shell thickness of T2 showed a significant decrease compared to other groups. The third treatment showed

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Publication Date
Sun Aug 18 2019
Journal Name
Proceedings Of Mechanical Engineering Research Day 2019,