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Article
A New Sperm Preparation Technique by Glass Wool Filtration Combined with Pentoxifylline Techniques versus Glass Wool Filtration alone for Infertile and Fertile Men

Authors: Ali A. Kadhim --- Hayder A. L. Mossa --- Mohammad O. Selman
Journal: Iraqi Journal of Embryos and Infertility Researches المجلة العراقية لبحوث الأجنة والعقم ISSN: eISSN: 26166984 / pISSN: 22180265 Year: 2017 Volume: 7 Issue: 1 Pages: 28-36
Publisher: Al-Nahrain University جامعة النهرين

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Abstract

The procedures of assisted reproductive technologies have been developed during recent years and have been revealed the need for new suitable and effective techniques of sperm treatment in the laboratory.


Article
Effect of Glass Wool Addition on Some Properties of Cement Mortar

Author: Hussein Alaa Jaber
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2016 Volume: 34 Issue: 14 Part (A) Engineering Pages: 2685-2691
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

This work presents an investigation of possible incorporation of the glass wool (fiberglass insulation) in cement mortar as an insulating building material. Mortar of ordinary Portland cement of (1:3) cement to sand ratio was mixed with glass wool at different weight percentages ranged between (0 – 0.24) wt%. Density, water absorption, thermal conductivity, compressive strength and flexural strength experimentally were investigated for mortar specimens after curing for (28 days). The results showed that the incorporation of glass wool decreases the density, thermal conductivity and compressive strength, but the flexural strength of cement mortar enhances. Thermal conductivity of the cement mortar has decreased by about 44 % by increasing of glass wool content up to 0.24 wt%. Thus, utilization of glass wool as constituents in cement mortar appears to be a promising opportunity that enables applying as thermal insulation materials in constructions.


Article
Preparation of Human Spermatozoa Using Glass Wool Filtration Technique Versus Centrifugation Swim-Up Technique for Asthenozoospermia

Authors: Sumeya G. AL-Najjar --- Muhammad M-R Fakhrildin
Journal: Iraqi Journal of Embryos and Infertility Researches المجلة العراقية لبحوث الأجنة والعقم ISSN: eISSN: 26166984 / pISSN: 22180265 Year: 2014 Volume: 4 Issue: 2 Pages: 25-31
Publisher: Al-Nahrain University جامعة النهرين

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Abstract

Background:Semen preparation techniques were developed to separate motile sperm that aremorphologically normal from seminal plasma to optimize successful assistedreproductive technology cycles which seem to be the most effective options in casesof a male factor infertility.Objective:The objective of the present study was to compare between outcomes of two spermpreparation techniques for asthenozoospermic patients includes:1-Centrifugationswim up technique.2-Glass wool filtration technique.Subjects, Materials and Methods:Fifty three infertile males were participated in this study during their attendance tothe Infertility Clinic at High Institute for Infertility Diagnosis and AssistedReproductive Technologies; Al- Nahrain University. Semen samples were collectedand SFA was done according to WHO (2010 and 1999). Each semen sample wasdivided into two aliquots. The first one prepared using centrifugation swim uptechnique, while the other one prepared using glass wool filtration technique thensperm parameters were assessed for both techniques and the results were statisticallyanalyzed.Results:After in vitro sperm activation using both techniques, there was significantreduction (P<0.05) in the sperm concentration, significant improvement (P<0.05) inthe percentages of sperm motility and morphologically normal sperm whencompared to pre-activation. Present study appeared that the glass wool filtrationtechnique resulted in significantly (P<0.05) better results for sperm concentrationand total number of progressive motile sperm than the swim-up technique.The present study proved that there was significant (P<0.05) improvement in spermparameters (increment for sperm motility (%), progressive sperm motility (%), totalnumber of progressive motile sperm and normal sperm morphology (%), whilereduction for round cell count and sperm agglutination percent) for all cases usingglass wool filtration techniques. In contrast, there was failure of sperm activation for10 cases using centrifugation swim up technique.Conclusions:From results of the present study, the sperm parameters outcomes using glass woolfiltration technique was superior to the outcomes of centrifugation swim uptechnique when prepare semen of asthenozoospermic patients.


Article
Mechanical and Physical Properties of Glass Wool-Rigid Polyurethane Foam Composites
الخواص الميكانيكية والفيزيائية لمادة متراكبة من الصوف الزجاجي – رغوة البولي يورثان

Authors: Aseel Kais Rasheed أسيل قيس رشيد --- Ismail Ibrahim Marhoon إسماعيل ابراهيم مرهون
Journal: AL-NAHRAIN JOURNAL FOR ENGINEERING SCIENCES مجلة النهرين للعلوم الهندسية ISSN: 25219154 / eISSN 25219162 Year: 2015 Volume: 18 Issue: 1 Pages: 41-49
Publisher: Al-Nahrain University جامعة النهرين

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Abstract

This research is devoted to the preparation of foam polymer matrix composite materials by forming in place method, where the composite foam material was prepared from the rigid polyurethane foam (PU) as a matrix reinforced by glass wool insulator with weight fractions (2%, 4%, 6%, 8% and 10%) .Several mechanical and physical tests were done and these include impact, flexural, compression, hardness, density, water absorption and thermal conductivity. The result shows that the values of mechanical and physical properties in general are increased with the increase of glass wool weight fraction content. The values of flexural strength decrease with the increase of weight fraction of glass wool fiber after 8% wt.

يهدف هذا البحث الى تحضير مواد متراكبة ذات اساس بوليمري رغوي بطريقة التشكيل الموقعي وقد حضرت المواد المتراكبة من رغوة البولي يورثان الصلبة كمادة اساس مدعمة بالصوف الزجاجي بكسور وزنية (2%,4%,6%,8%,10%) وقد اجريت مجموعة من الاختبارات الميكانيكية والفيزيائية شملت (الصدمة, الانحناء, الانضغاط, الصلادة, الكثافة, امتصاصية الماء والموصلية الحرارية) وقد اظهرت نتائج الاختبارات ان قيم الخواص الميكانيكية و الفيزيائية بشكل عام تزداد مع زيادة محتوى الكسر الوزني للصوف الزجاجي لكن قيم مقاومة الانحناء تنخفض مع زيادة الكسر الوزني للألياف الصوف الزجاجي بعد كسر وزني 8%.

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