Parabola Dish and Cassegrain Concentrators to Improve Solar Cell Conversion Efficiency

Ali.H AL-Hamdani; Batool.D. Blawa; S.K AL-Ani

doi:10.21123/bsj.2011.8.2.571-576

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Publication Date

Sun Jun 12 2011

Journal Name

Baghdad Science Journal

Volume

8

Issue Number

2

DOI

10.21123/bsj.2011.8.2.571-576

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Parabola Dish and Cassegrain Concentrators to Improve Solar Cell Conversion Efficiency

Solar energy

Luminescent

Fresnel and Hybrid concentrators.

Ali.H AL-Hamdani

Batool.D. Blawa

S.K AL-Ani

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New designs of solar using ray tracing program, have been presented for improved the performance and the out put power of the silicon solar cell, as well as reducing the cost of system working by solar energy. Two dimensional solar concentrator (Fresnel lenses) and three dimensional concentrators (parabola dish and cassegrain) were used as concentrator for photovoltaic applications (CPV). The results show that the performance efficiency and out power for crystalline silicon solar cells are improved.

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Publication Date

Mon Apr 06 2020

Journal Name

August

INFLUENCE OF SOME FACTOR ON SOMATIC EMBRYOS INDUCTION AND GERMINATION OF DATE PALM CV BARHI BY USING CELL SUSPENSION CULTURE TECHNIQUE

This study was done to examine different concentrations of mercuric chloride (Hgcl2) for Explants sterilization and different concentration of NAA) mg/L with 2iP for their effect on initiation primary callus and subsequent embryogenesis in Phoenix dactyliferae cultivar Barhi. Leaf primordial and shoot tips were excised from 2-3 years old offshoot. The result showed that contamination percentage decreased with an increase in concentration of Hgcl2 for two explants where in the control (0.0)% gave highest value 75% and 62.5% of contamination for leaf primordial and shoot tip respectively while the addition (0.1)% gave a significant decrease 37.5 and 0% for explants respectively. The Explants were inoculated onto Murashiege and Skoog

1962 (MS) medium supplemented with 2iP 3mg/L and containing 0

25

50 or 100 mg/L of NAA

the addition (50) mg/L of NAA gave highest value 68.8% in percentage of callus initiation with significant difference from addition 0% gave lowest value (18.8)%

as well Explants of shoot tip gave significant difference was 53.1% while leaf primordial gave 28.1%

Primary callus was transferred to fresh MS medium containing (0

5

10 and 20) mg/L of NAA with 3mg/L 2iP

Results were recorded after 12 weeks. A highest value of embryonic callus induction percentage or fresh weight and dry weight 87.5% or 1.56g and 0.47g for the character respectively for the treat 20 mg/L while control treatment 0.0 gave the lowest value 12.5% or 0.37g and 0.14g for same character respectively. Inoculated 1g fresh biomass into a 250 ml Erlenmeyer flask containing 50 ml MS liquid medium supplemented with NAA 20mg/L and agitated at 150 rpm by shaker to making suspension culture the measurements of packed cell volume ( pcv) or fresh and dry weight taken weekly for 12 weeks

maximum values were reached in the eighth week of PCV and fresh weight but the dry weight reached to highest value in seventh week

then the curve began to decline gradually until it reached stability in the last two weeks. The cell suspension was Diluted to different initial cell density of 100

500

10000

50000 and 100000 cells /ml with hemocytometer. The initial cell number of (10000) cells gave significant different of plating efficiency PE (11.6)% while (100) cells gave lowest value 1.8% of PE.

Ali A.

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Publication Date

Sun Aug 03 2025

Journal Name

Journal Of Molecular Structure

Synergistic design of carbazole-bearing (D–π)₂-D–π–A architectures for dye-sensitized solar cells: Experimental and theoretical evaluations

Nawar Jamal

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Publication Date

Tue Aug 01 2017

Journal Name

International Journal Of Science And Research (ijsr)

Thermal Analysis of Double-Pass Solar Air Collector with Different Materials of Absorber Plate and Different Dimensions of Air Channels

Ali

Mustafa

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Search Results at the International Journal of Science and Research (IJSR)

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Publication Date

Thu Mar 01 2018

Journal Name

Spectrochimica Acta Part A: Molecular And Biomolecular Spectroscopy

Application of dyes extracted from Alternanthera dentata leaves and Musa acuminata bracts as natural sensitizers for dye-sensitized solar cells

Mahmoud

Norasikin A.

Abu Bakar

Abd. Amir H.

Abduljabbar

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(101)

(99)

Publication Date

Sun Jan 02 2022

Journal Name

Journal Of The College Of Languages (jcl)

To Domesticate or to Foreignize: An Approach to Translating Fables and Fairy Tales

Children literature

domestication

foreignization

fairy tales.

Ala’a Jasim

Bayda Ali

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The present study deals with the strategies used in the Arabic translations of the most popular genres of children’s literature; namely fairy tales and fables as an attempt to identify the best methods and strategies to be adopted in translating these genres to fulfill the ultimate purpose of enriching the children’s knowledge in addition to attracting their interest and arousing the joy sought for in every piece of literature.

The study sets off from three dominating trends: the first calls for the adoption of domestication strategy of translation as the most appropriate and effective strategy in translation for children. In the same line, the second opposes using the foreignization strategy, w

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Publication Date

Mon Jan 01 2024

Journal Name

Vitae

Evaluation of Cytotoxic effect of Moringa peregrina seeds on Oral Cancer, CAL 27 Cell Line and Red Blood Cells Hemolysis

shaymaa

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Background: Moringa peregrina Forssk is a well-known plant in ethnomedicine due to its widespread uses in various diseases like cough, wound healing, rhinitis, fever, and detoxification. The plant seeds contain compounds that are cytotoxic to many cancer cells. During the therapeutic use of plants via the oral route, some compounds present in the plants may be cytotoxic to normal cell lines and red blood cells. Objective: This study was the first report of investigation of the cytotoxic profile on oral cancer, CAL 27, cell line, and hemolytic activities on human erythrocytes of Moringa peregrina seeds ethanolic extract (MPSE). Methods: MPSE was screened for its cytotoxic effect against oral cancer, CAL 27, cell line using 3-(4, 5-di

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(2)

Publication Date

Fri Nov 01 2024

Journal Name

Cytokine

Lupeol stimulates iNOS, TNF-α, and IL-10 expression in the U937 cell line infected with old-world Leishmania donovani

Hayder

Hayder Z.

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(2)

Publication Date

Wed Dec 31 2025

Journal Name

Journal Of Baghdad College Of Dentistry

A Comparative Study of Immunohistochemical Expression of Moesin, Cytokeratin 14 andMMP7 in Oral Squamous Cell Carcinoma and Oral Verrucous Carcinoma

Karawan K

Wasan H

Bashar H

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Background: Squamous cell carcinoma (SCC) is the most prevalent malignant neoplasm of the oral cavity that exhibits certain histological variations. Verrucous carcinoma (VC) is an uncommon exophytic low-grade well-differentiated variant of SCC. Cellular differentiation and morphology play important roles in cell functions and maintenance of structural integrity .As the cancer is a malignant process in which disorder of the cell growth and behavior occurs, such changes may differ in different tumor types and within different grades of the same tumor. Materials and Methods:Forty two formalin â€“ fixed, paraffin â€“ embedded tissue blocks were included in this study (30 blocks were diagnosed as OSCC and 12 blocks were diagnosed as OV

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(4)

Publication Date

Tue Jan 01 2019

Journal Name

In Indian Journal Of Public Health Research And Development

The Significance of p53, Bcl-2, and HER-2/neu Protein Expression in Iraqi Females Breast Cancer Cell Line (AMJ13)

Doha

Ahmed

Maha

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-----

Publication Date

Tue May 07 2024

Journal Name

Hayati Journal Of Biosciences

Histological and Molecular Evaluation of the Antiproliferative Activity of Allium ampeloprasum Water Extract Against Oral Mucosa Cell Line (Gingival Cancer)

Maryam Hameed

Zainab

Satria

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Gingival carcinoma is a malignant neoplasm affecting the oral mucosa and is associated with significant morbidity and mortality. Allium ampeloprasum var. porrum water extracts have gotten a lot of attention because of their bioactive components, such as polyphenols, flavonoids, and alkaloids, which have a variety of pharmacological activities, including antiproliferative actions. This study aimed to evaluate the histological and molecular effects of Allium ampeloprasum (leek) water extract on the proliferation of the murine gingival cancer cell line. Histological evaluation was conducted to examine morphological changes induced by extract treatment. Molecular mechanisms underlying the observed histological changes were investigated

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