Preferred Language
Articles
/
joe-454
Retrofitting of Reinforced Concrete Damaged Short Column Exposed to High Temperature
...Show More Authors

Experimental research was carried out to investigate the performance of CFRP wrapping jackets used for retrofitting twelve square reinforced concrete (CR) column specimens damaged by exposure to fire flame, at different temperatures of  300, 500 and 700ºC, except for two specimens that were not burned. The specimens were then loaded axially till failure after gradual or sudden cooling. The specimens were divided into two groups containing two main reinforcement ratios, ρ= 0.0314 and ρ= 0.0542. This was followed by the retrofitting procedure that included wrapping all the specimens with two layers of CFRP fabric sheets. The test results of the retrofitted specimens showed that the fire damaged RC column specimens can be retrofitted efficiently by using CFRP wrap jackets, as they provided good confinement of the damaged concrete core. Also, the ultimate load capacity of each retrofitted specimen was increased compared to that before retrofitting by about 16, 34 and 44% for the  specimens burned at 300, 500 and 700ºC respectively, and cooled gradually, whereas this increase was 44% and 111% for the specimens subjected to burning temperatures of 500 and 700ºC, respectively, but cooled suddenly. This ability of each column specimen to absorb energy before and after retrofitting was also improved. The average improvement in modulus of toughness before and after retrofitting was 8% for the specimens not exposed to fire flame and 10, 100, 250% for the specimens exposed to 300, 500 and 700ºC respectively.

 

View Publication Preview PDF
Quick Preview PDF
Publication Date
Thu Mar 30 2017
Journal Name
Iraqi Journal Of Pharmaceutical Sciences ( P-issn 1683 - 3597 E-issn 2521 - 3512)
Synthesis of New Opioid Analgesic Peptide Analogues to Enkephalin (Leucine- and Methionine-Enkephalin)
...Show More Authors

A small number of researches were done in the design and synthesis of enkephalin analogues that are able to resist degradation effect of proteolytic enzymes with good bioavailability and half-lives.Through studying structure activity relationships we tried to incorporate phthalyl group, tryptophan and lysine amino acids in different positions in the basic backbone structure of the naturally occurring opioid Leu5- and Met5- enkephalin, in the hope that such insertion of these amino acids could induce interesting addition in the biological activity of these analogues with enhancement of their bioavailability, in addition to decrease side effects as addiction liability.

These synthesized peptides are:

    ... Show More
    View Publication Preview PDF
    Crossref
    Publication Date
    Thu Apr 25 2013
    Journal Name
    Isprs International Journal Of Geo-information
    Using Geometric Properties to Evaluate Possible Integration of Authoritative and Volunteered Geographic Information
    ...Show More Authors

    The assessment of data quality from different sources can be considered as a key challenge in supporting effective geospatial data integration and promoting collaboration in mapping projects. This paper presents a methodology for assessing positional and shape quality for authoritative large-scale data, such as Ordnance Survey (OS) UK data and General Directorate for Survey (GDS) Iraq data, and Volunteered Geographic Information (VGI), such as OpenStreetMap (OSM) data, with the intention of assessing possible integration. It is based on the measurement of discrepancies among the datasets, addressing positional accuracy and shape fidelity, using standard procedures and also directional statistics. Line feature comparison has been und

    ... Show More
    View Publication
    Scopus (28)
    Crossref (26)
    Scopus Clarivate Crossref
    Publication Date
    Mon Mar 08 2021
    Journal Name
    Baghdad Science Journal
    identification of fungi and their toxins associated with imported rice grain to iraq
    ...Show More Authors

    The study included the investigation of fungi ringed and inventory and Aflatoxins in rice and recorded average temperatures and humidity 22.75 degree Celsius and 13.2% respectively were obtained 1356 isolation innate possible diagnosis 15 species inherent in rice imported back to 8 races represented races b Fusarium , Cladosporium, Aspergillus and Alternaria

    View Publication Preview PDF
    Publication Date
    Sun Dec 10 2017
    Journal Name
    Al-academy
    The Composition of design according to norm renovation in the interior design space
    ...Show More Authors

    The interior spaces represent a true reflection of the concepts and values ​​of humanity and requirements; were interested in current research ongoing changes that have occurred in those human values ​​and requirements over time, even pat each time warp its values ​​and its own requirements. Those changes, which receive Bdilalha the spaces linked by a renewal which guarantees the interior design of the spaces of sustainability and bio-coordinated. Launched search from an initial perception that those associated with the changes of the spaces through time that have not been subject to examination and supervision, they will constitute a continuing threat of losing the ties with the past under the pretext of modernization and mo

    ... Show More
    View Publication Preview PDF
    Crossref
    Publication Date
    Fri Apr 30 2021
    Journal Name
    Al-kindy College Medical Journal
    The Expression of Epstein-Barr virus in Breast cancer in relation to age
    ...Show More Authors

    Background: Breast cancer is the most common
    malignancy affecting females worldwide. The association
    of Epstein-Barr virus (EBV) with this cancer is a longstanding
    interest to this field.
    Aim: to investigate the presence of EBV in breast tumor
    tissue in relation to age.
    Patients and Methods: Paraffin-embedded tissue blocks
    from 45 female patients with breast tumors (ranged in age
    from 28 to 85 years) were retrieved. The cases were
    grouped into two categories: group (A): included 30 cases
    with breast carcinoma and group (B): included 15 cases
    with benign breast diseases as a control group .The
    expression of EBV protein was examined
    immunohistochemically.
    Results: Twelve (40%) of the 30 breast canc

    ... Show More
    View Publication Preview PDF
    Publication Date
    Sun Feb 10 2019
    Journal Name
    Journal Of The College Of Education For Women
    A Study of Person Deixis in J. M. Singe's Riders to the Sea
    ...Show More Authors

    This study deals with an important area in the field of linguistics, namely person deixis.
    The study aims at: (1) Describing the notion of deixis, its importance, and its place in the field
    of linguistics, (2) Presenting a detailed illustration of person deixis, and (3) Conducting an
    analysis of person deixis in one of Synge‟s plays Riders to The Sea according to Levinson‟s
    model. The most important aim of these three is the third one (the analysis). To achieve this
    aim, the researcher depends on Levinson‟s (1983) descriptive approach. According to the
    descriptive approach of deixis, the category of person deixis can be defined as the encoding of
    the participant roles in the speech situation. This encoding is r

    ... Show More
    View Publication Preview PDF
    Publication Date
    Sat Jan 01 2011
    Journal Name
    Communications In Computer And Information Science
    The Use of Biorthogonal Wavelet, 2D Polynomial and Quadtree to Compress Color Images
    ...Show More Authors

    In this paper, a compression system with high synthetic architect is introduced, it is based on wavelet transform, polynomial representation and quadtree coding. The bio-orthogonal (tap 9/7) wavelet transform is used to decompose the image signal, and 2D polynomial representation is utilized to prune the existing high scale variation of image signal. Quantization with quadtree coding are followed by shift coding are applied to compress the detail band and the residue part of approximation subband. The test results indicate that the introduced system is simple and fast and it leads to better compression gain in comparison with the case of using first order polynomial approximation.

    View Publication
    Scopus (1)
    Crossref (1)
    Scopus Crossref
    Publication Date
    Thu Jun 27 2019
    Journal Name
    Journal Of The College Of Education For Women
    The Formula of the Name (Faael) in Plural According to the Dictionary Use
    ...Show More Authors

    The grammar structure transforms from its fundamental field to another field that takes new dimensions, and is used in another way in speech that differs from the first one, because the formula basis of the name(Faael) in speech is a (distorted characteristic), and the distorted characteristic indicates the stability and the necessity of the characterized. as this characteristic has changed from its use as a distorted characteristic which was established by the elders. to a use that differs from the first and cannot be overlooked to achieve a new purpose, to be used as plural

    View Publication Preview PDF
    Publication Date
    Sun Apr 16 2023
    Journal Name
    Iraqi Journal For Computer Science And Mathematics
    Some Methods to Estimate the Parameters of Generalized Exponential Rayleigh Model by Simulation
    ...Show More Authors

    This paper shews how to estimate the parameter of generalized exponential Rayleigh (GER) distribution by three estimation methods. The first one is maximum likelihood estimator method the second one is moment employing estimation method (MEM), the third one is rank set sampling estimator method (RSSEM)The simulation technique is used for all these estimation methods to find the parameters for generalized exponential Rayleigh distribution. Finally using the mean squares error criterion to compare between these estimation methods to find which of these methods are best to the others

    View Publication Preview PDF
    Scopus (4)
    Crossref (1)
    Scopus Crossref
    Publication Date
    Mon Dec 30 2002
    Journal Name
    Iraqi Journal Of Chemical And Petroleum Engineering
    Vapor Phase Oxidation of Benzoic Acid to Phenol using Nickel-Iron Oxides Catalysts
    ...Show More Authors

    View Publication Preview PDF