Design and study for transmitter system of laser Nd-YAG (1.06 ?m)

Tasneem H.  Mahmood

doi:10.21123/bsj.2014.11.3.1113-1121

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Publication Date

Sun Sep 07 2014

Journal Name

Baghdad Science Journal

Volume

11

Issue Number

3

DOI

10.21123/bsj.2014.11.3.1113-1121

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Design and study for transmitter system of laser Nd-YAG (1.06 ?m)

Transmitter

optical system

Beam expander

Tasneem H. Mahmood

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In this research , design and study a (beam expander) for the Nd – YAG laser with (1.06 ?m) Wavelength has been studied at 5X zoom with narrow diversion in the room temperature. by using (ZEMAX) to study the system. Evaluate its performance via (ZEMAX) outputs, as bright Spot Diagram via (RMS), Ray Fan Plot, Geometric Encircled Energy and the value of Focal shift. Then study the effect of field of view on the outputs in the room temperature.

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Publication Date

Thu Nov 01 2018

Journal Name

Italian Journal Of Vascular And Endovascular Surgery

Retroperitoneal versus transperitoneal approach for aortoiliac occlusive disease: a comparative study

Neamah H.R.

Qays A.

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Publication Date

Wed Mar 16 2022

Journal Name

Journal Of Educational And Psychological Researches

Biology Textbook for Scientific Sixth Class in Iraq (A Comparative Study)

biology

life sciences

the sixth class

comparative study

curriculum book

Huda Ghanim Dakhil

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The textbook is the primary means of creativity and thinking, which has a major role in the development of the readership and mental abilities of the student. It is the basic tool in education in Iraq for the teacher and the student, which cannot be dispensed in any educational program. The current study aimed at the book of the biology of the sixth grade of science in Iraq (comparative study). It was compared to the book of biology for the twelve grade in the Kingdom of Jordan to identify the ratio of similarity and differences between them, in addition, to identify the weaknesses in the Iraq curriculum and developing appropriate solutions and suggestions to address them. The sample was represented with books of biology (six-science cla

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Publication Date

Mon Jan 01 2024

Journal Name

Anais Da Academia Brasileira De Ciências

Morphological study for Accipitrid birds (Accipitridforms, Accipitridae) in Iraq; part two

A part two of Accipitridae Family members that belong to three genera: Circus

Gyps

and Neophron were documented as morphometrics

distribution ranges

and conservation status were reviewed and comprehensively discussed. A total of 29 voucher specimens belong to six species which are conserved in the “Iraq Natural History Research Center and Museum INHM” as follow: Marsh Harrier Circus aeruginosus (Linnaeus

1758)

Hen Harrier Circus cyaneus (Linnaeus

1766)

Montagus Harrier Circus pygargus (Linnaeus

1758)

Pallid Harrier Circus macrourus (Gmelin

1770)

Egyptian vulture Neophron percnopterus (Linnaeus

1758)

and Griffon vulture Gyps fulfus (Hablitz

1783). The results revealed significant criteria about near threatened NT species IUCN and Birdlife International listed as Pallid Harrier Circus macrourus

and Endangered (EN) species as Egyptian vulture Neophron percnopterus globally decreasing population trend.

HIND D.

KHALIDA I.

AFKAR M.

SUHAD Y.

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Publication Date

Tue Jan 01 2019

Journal Name

Advances In Informatics And Computing In Civil And Construction Engineering: Proceedings Of The 35th Cib W78 2018 Conference: It In Design, Construction, And Management

Technology alternatives for workplace safety risk mitigation in construction: Exploratory study

Ali

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Publication Date

Wed Aug 01 2018

Journal Name

Journal Of Economics And Administrative Sciences

Robust Estimations for power Spectrum in ARMA(1,1) Model Simulation Study

الحصانة

قدرة الطيف

الأنموذج المختلط .

Robust

Power Spectrum

ARMA.

عبد المجيد حمزة

سحر طارق

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Simulation Study

Abstract :

Robust statistics Known as, Resistance to mistakes resulting of the deviation of Check hypotheses of statistical properties ( Adjacent Unbiased , The Efficiency of data taken from a wide range of probability distributions follow a normal distribution or a mixture of other distributions with different standard deviations.

power spectrum function lead to, President role in the analysis of Stationary random processes, organized according to time, may be discrete random variables or continuous. Measuring its total capacity as frequency function.

Estimation methods Share with

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Publication Date

Sun Dec 02 2012

Journal Name

Baghdad Science Journal

The Dissolution Study For Sodium Selenite Tablets Using Atomic Absorption Spectrophotometer

" Dissolution

Sodium Selenite

Atomic Absorption

Spectrophotometer"

Waleed A.

Fadhil M.

Zehraa A.

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The development of a meaningful dissolution procedure for drug products with limited water solubility has been a challenge to both the pharmaceutical industry and the agencies that regulate them. Natural surfactants aid in the dissolution and subsequent absorption of drugs with limited aqueous solubility. In vitro, various techniques have been used to achieve adequate dissolution of the sparingly water – soluble or water insoluble drug products such as the use of mechanical methods (i.e., increased agitation and the disintegration method) or hydro alcoholic medium or large volumes of medium. The necessity of assuring the quality of drugs , especially those with low aqueous solubility and in vivo absorption , has led to the development and

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Publication Date

Thu Aug 30 2018

Journal Name

Journal Of Engineering

Mass Transfer Study for Bio-Synergy in Dairy Wastewater Treatment Plant

Bioreactor

mass transfer

microalgae

aerobic bacteria

Basma Abbas

Arwa Raad

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The present study addresses the behavior of gases in cultivation media as an essential factor to develop the relationship between the microorganisms that are present in the same environment. This relationship was explained via mass transfer of those gases to be a reasonable driving force in changing biological trends. Stripping and dissolution of oxygen and carbon dioxide in water and dairy wastewater were investigated in this study. Bubble column bioreactor under thermal control system was constructed and used for these processes. The experimental results showed that the removal of gases from the culture media requires more time than the dissolution. For example, the volumetric mass transfer coefficient for the removal

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(2)

Publication Date

Wed Jun 01 2016

Journal Name

Journal Of Engineering

A Novel Analytical Model to Design Piezoelectric Patches Used to Repair Cracked Beams

Waleed

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In this paper, an analytical solution describing the deflection of a cracked beam repaired with piezoelectric patch is introduced. The solution is derived using perturbation method. A novel analytical model to calculate the proper dimensions of piezoelectric patches used to repair cracked beams is also introduced. This model shows that the thickness of the piezoelectric patch depends mainly on the thickness of the cracked beam, the electro-mechanical properties of the patch material, the applied load and the crack location. Furthermore, the model shows that the length of the piezoelectric patches depends on the thickness of the patch as well as it depends on the length of the cracked beam and the crack depth. The additional flexibil

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(6)

Publication Date

Wed Jun 20 2018

Journal Name

Al-academy

The Reduction in the design structure ofThe emblems ofIraqi sports clubs is amodel

Raghad

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Singled current study on the subject of shorthand in structure designs logos (Iraqi sports clubs model), as the current study Tdmt four chapters, was in the first chapter defines the research problem and its significance, as well as the aim of the research in the know shorthand formal in structure designs logos (Iraqi sports clubs model ), and identifies Find time limits: - slogans Iraqi sports clubs for the years (1956 - 1970), because it represented the years to include designs slogans official Iraqi sports clubs that have been elected in this period for the purpose of examining the reality of the design in the current search. And it represented the spatial limits: - the Republic of Iraq - Iraqi slogans designs sports

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Publication Date

Mon Jun 01 2020

Journal Name

Al-khwarizmi Engineering Journal

Developing a Prosthesis Design using A Gearbox to Replicate the Human Hand Mechanism

Haneen Mahdi

Muhammed Abdul

Nabel Kadhim

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Prosthetic is an artificial tool that replaces a member of the human frame that is absent because of ailment, damage, or distortion. The current research activities in Iraq draw interest to the upper limb discipline because of the growth in the number of amputees. Thus, it becomes necessary to increase researches in this subject to help in reducing the struggling patients. This paper describes the design and development of a prosthesis for people able and wear them from persons who have amputation in the hands. This design is composed of a hand with five fingers moving by means of a gearbox ism mechanism. The design of this artificial hand has 5 degrees of freedom. This artificial hand works based on the principle of &n

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