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bsj-6190
Spectral Behaviour of the low concentrations of Coumarin 334 with Broadband Cavity Enhanced Absorption Spectroscopy
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The current research is a spectroscopic study of Coumarin 334 dissolved in methanol. The range of concentrations of the prepared stock solution was (3.39x10-9 to 2.03x10-8) M. Some optical characteristics of this dye were investigated such as absorbance and transmission spectra, absorption coefficient, refractive and extinction coefficients, oscillation and dispersion energies, and energy band gap. The absorbance spectra were recorded at 452 nm using Broad Band Cavity Enhanced Absorption Spectroscopy (BBCEAS) which depends on increasing the path length of the traveling light from the source to the detector. The minimum absorbance amount was 0.07 with a low concentration of 3.39x10-9 M. As a result, the other optical properties were calculated on the basis of the lowest values of absorbance. The energy band gap, which is important to detect the electronic band structure of the material,  was determined; it was found to be equal to ~2.55 eV. The low values of the concentration made less collision between the molecules in the materials and the incident light. This led to a reduction in the background noise and in the percentages of losses. Furthermore, the dispersion and single oscillator energies, which help to calculate the average strength of the inter-band optical transitions and to prepare the quantifiable information about the band structure of the material, were calculated to reduce with the increasing concentrations. The refractive and extinction coefficients were determined because they are considered important factors for the optical materials and found to increase with the increasing concentrations. As a result, the study of the optical behavior of Coumarin 334 highlighted the promising materials for photonics applications at very low concentrations. All these properties are considered the main factors to determine the usefulness of the materials in advanced applications and to develop the performance of the devices which depend on the optical characteristics.

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Publication Date
Wed Jun 22 2022
Journal Name
Arab Science Heritage Journal
تسميةُ بعض الأعمال(كُفْراً) في أحاديثِ الكتبِ الستةِ (دراسة تحليلية)
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This search aimed to show a series of converses that our prophet [peace be upon him] call ,some of them , (Kufraa) , and explain the meaning of (AI-kufr) that called on some works , so does it mean the apparent part or the pronunciation of(Al-Kufr) has another meanings ?

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Publication Date
Sun Jan 05 2014
Journal Name
Journal Of Educational And Psychological Researches
Unemployment & its Problems Between Theory & Applying Field Study in Baghdad City
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The unemployment is considered from the most danger problems that our society face them in current time & in the near future , because it makes prodigality for element of human being , particularly age of youth who have ability to work & producing , that resulted in negative effects forecast to dire consequences social and economical dangers . In the same time as will be stated in our explanation in the following in our research , because the unemployment has ability to help to prepare good environment to grow crime , actions of violence that mostly are main cause to decrease living level of majority of citizens & in increasing numbers who became under poverty , the unemployment is economical problem as it is psycholo

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Publication Date
Wed Jun 29 2022
Journal Name
College Of Islamic Sciences
Factors Affecting Attaching Ruling to Its Cause (Illah) or to Its Reason (Hikmah): A Study in Usul Al Fiqh
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There is a theoretical controversy in the books of Usul al-Fiqh, in the past and the present, about whether the ruling should be attached to its reason (al-Hikmah), or its apparent and stable cause (al-Illah). Looking at the practical cases of the jurists, we found them sometimes attaching rulings to its reason, and sometimes to its cause, so there is a need to know the factors that affect their choices. By extrapolation, the researcher reached at nine factors that affect referring the ruling to its cause or to its reason in jurisprudential cases.

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Publication Date
Sun Oct 14 2018
Journal Name
Arab Science Heritage Journal
جغرافية جغرافية العراق في الادبيات الاجنبية والعربية (دراسة تاريخية - تحليلية)
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تناول هذا البحث مراجعة لعدد من الكتب التي ألفت في جغرافية العراق العربية منها والإنكليزية، وتحديداً الكتب في العصر الحديث، إذ توصل البحث الى وجود مجموعة من الكتب التي تناولت مختلف جوانب العراق الطبيعية منها والبشرية، اتضح أن بعض الكتب الجغرافية تناولت الجانب الجغرافي الطبيعي فقط، في حين أن كتب أخرى تناولت الجانب الجغرافي البشري فقط. وأخرى جمعت بين الجغرافية الطبيعية والبشرية للعراق.

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Publication Date
Wed Mar 01 2023
Journal Name
Baghdad Science Journal
A Study on Nψβ and Nβψ - Closed sets in Neutrosophic Topological spaces
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The aim of this paper is to introduce the concept of N  and Nβ -closed sets in terms of neutrosophic topological spaces. Some of its properties are also discussed.

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Publication Date
Sun Sep 21 2025
Journal Name
Journal Of Wasit For Human
دراسة صرفية معجمية لبعض المصطلحات الطبية الخاصة ببعض الأمراض الجلدية
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Publication Date
Thu Sep 01 2011
Journal Name
Journal Of Accounting And Financial Studies ( Jafs )
عناصر المزيج التسويقي لخدمات التدقيق: دراسة تحليلية لتفضيلات الزبائن والمهنيين
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The research seeks to determine the nature of audit services, their characteristics and the basic concepts of services marketing audit and definition of the rules and basic dimensions of the marketing audit services through the knowledge of the elements of the marketing mix and test the preferences of customers and auditors of the factors affecting the marketing audit services by selecting a sample of the owners of some of the projects and companies and a sample of auditors has been use the resolution to achieve the objectives of the research where a good question to the owners about the most important factors in your choice of the Audit Office and asked the organization to answer according to the standard trio (very important, a few imp

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Publication Date
Thu Feb 07 2019
Journal Name
Journal Of The College Of Education For Women
الصوت ووجوه الاعجاز القرآني سورة القدر میدانا تطبیقیا (دراسة اسلوبیة)
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This research has been written as a fullfillment of the researchers
desire of joining the qurannic convoy servos each one from his own place and
this own field of specialization . she has found that the holly quraan is a
parctical field for theories and rules of old and modren phonetic studies also
she has becom a ware of the fact that the quraanic Important –making has
various aspects that neither can be a ware of nor can be vanished by the
courses of ages for science can flourish and reach tops to the extent they
don’t accept any new addition theories can be studied and given laws at last
except the quannice important – making which is new and discovered at
deferent times and places in spite of the shor

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Publication Date
Sun Sep 21 2025
Journal Name
Surra Man Ra'a
دراسة صرفيّة معجميّة لبعض المصطلحات الطبيّة الخاصّة ببعض الأمراض التنفسيّة
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Publication Date
Thu Jul 29 2021
Journal Name
Arab Science Heritage Journal
السيد محمد باقر الصدر و كتابه منة المنان (دراسة تحليلية)
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Praise be to God, Lord of the worlds, and may blessings and peace be upon the most honorable of all creation, Abi Al-Qasim Muhammad, and the God of the good and pure

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