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Chinese Physics B 2013年第11期22卷 331-336页

作者： qusay M.A.hassan Hussain A.Badran Alaa Y.AL-Ahmad Chassib A.Emshary Department of Physics College of Education University of Basrah

A thermal lens technique is adopted using a single modulated continuous wave （cw） 532-nm laser beam to evaluate the nonlinear refractive index n2, and the thermo-optic coefficient dn/dT, in polymer Poly （1-naphthyl methacrylate）（P-1-NM） dissolved in chloroform, tetrahydrofuran （THF）, and dimethyl sulfoxide （DMSO） solvents. The results are compared with Z-scan and diffraction ring techniques. The comparison reveals the effectiveness and the simplicity of the TTL modulation technique. The physical origin is discussed for the obtained results.

关键词： nonlinear refractive index thermo-optic coefficient self-phase modulation nonlinear optics

Optimization of Continuous Airworthiness Problems

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Journal of Traffic and Transportation Engineering 2023年第3期11卷 121-130页

作者： qusay hassan Department of Mechanical Engineering University of DiyalaIraq

Recently aviation accident data shows that many fatal accidents in aviation are due to airworthiness issues despite the fact that all civil and private aircraft are required to comply with the airworthiness standards set by their national airworthiness *** paper presents a unique approach to continuous airworthiness problems optimization needed to reduce the risk associated by the gap between aircraft designers&manufacturing organization and continuing airworthiness(state of civil aviation authority and air operators).As a result of the paper summaries these problems and searching of the possible solutions to optimized,these problems are achieved to get more integration between(designers&manufacturing and air operators),finally there is recommendations are drawn to address the safe operation of the aircraft and can be given to the International Civil Aviation Organization(ICAO),Federal Aviation Administration(FAA)and European Aviation Safety Agency(EASA)and Civil Aviation Authorities(CAAs)for more integrate between all of them structure.

关键词： Airworthiness aircraft accident aviation safety

Optimization of Continuous Airworthiness Problems

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Journal of Traffic and Transportation Engineering 2018年第6期6卷 292-301页

作者： qusay hassan Kamila kustroń Marek Jaszczur Mazin Ajaweed AGH University of Science and Technology Faculty of Energy and FuelsPoland University of Diyala Department of Mechanical EngineeringIraq Warsaw University of Technology Faculty of Power and Aeronautical EngineeringPoland Baghdad University of Technology Department of Control Systems EngineeringIraq

Recently aviation accident data shows that many fatal accidents in aviation are due to airworthiness issues despite the fact that all civil and private aircraft are required to comply with the airworthiness standards set by their national airworthiness *** paper presents a unique approach to continuous airworthiness problems optimization needed to reduce the risk associated with the gap between aircraft designers&manufacturing organization and continuing airworthiness(state of civil aviation authority and air operators).As a result of the paper summarizes these problems and searching of the possible solutions to be optimized,these problems are achieved to get more integration between(designers&manufacturing and air operators),finally the recommendations are drawn to address the safe operation of the aircraft and can be given to the International Civil Aviation Organization(ICAO),Federal Aviation Administration(FAA)and European Aviation Safety Agency(EASA)and Civil Aviation Authorities(CAAs)for more integration between all of them structure.

关键词： Airworthiness optimization aviation safety

Xen45 Gel Stent implant: patient reported outcomes

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International Journal of Ophthalmology(English edition) 2019年第9期12卷 1503-1506页

作者： Faaiq hassan Luke Thomas Middleton Thomson Gurpal Toor qusay Alfahad Department of Ophthalmology South Warwickshire NHS foundation trust

Our aim was to report quality of life(QOL) outcomes following Xen45 Gel Stent implantation surgery in patients suffering with primary open angle glaucoma(POAG). A retrospective analysis was performed on all patients who had Xen45 implantation surgery during a 2-year period(Jun, 2016-Apr, 2018). Of 52 consecutive patients were included with a total of 58 eyes being operated on. QOL was compared both pre-operatively and 6 weeks postoperatively using the GQL-15 questionnaire. There was an overall improvement in GQL-15 summary scores for our patient group. All item scores showed either no change or some degree of improvement. The Xen45 Gel Stent Implant is a promising new intervention which has shown improved QOL scores in our patient group. Further, higher power studies are now needed to compare the Xen45 to trabeculectomy(TE), which is currently the gold standard.

关键词： glaucoma minimally invasive glaucoma surgery Xen45 Gel Stent implant

Rooting of Stem Cuttings with Different Indole 3 Butyric Acid (IBA) Treatments and Development of Micropropagation Protocol for <i>Piper betle</i>L. Node Culture

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American Journal of Plant Sciences 2017年第12期8卷 3084-3100页

作者： qusay Abdulhamza Muttaleb Thohirah Lee Abdullah Azmi Abdul Rashid Siti Aishah hassan Technical Institute of Babel Al-Furat Al-Awsat Technical University Al Hillah Iraq Department of Crop Science Faculty of Agriculture Universiti Putra Malaysia Serdang Malaysia Laboratory of Plant Microstructure and Anatomy Department of Crop Science Faculty of Agriculture Universiti Putra Malaysia Serdang Malaysia In Vitro Laboratory Department of Agriculture Technology Universiti Putra Malaysia Serdang Malaysia

The present study, conducted during 2016 and 2017 seasons, aimed to investigate the effect of IBA on rooting of Piper betle L. stem cuttings (softwood and semi-hardwood). The experiment was undertaken in misting house field 2 UPM using the sand media to determine the adventitious roots initiation and development using the histological method. The cuttings were treated with different IBA concentrations (0, 500, 1000, 1500 and 2000 mg/L). The nodes explants were used in the development of a protocol for in vitro propagation of P. betle L., with different concentrations of Clorox with different times of immersion (20% Clorox 10 minutes, 30% Clorox 10 minutes, 20% Clorox 20 minutes, and 30% 20 minutes). In multiplication of the plantlets, Murashige and Skoog (MS) medium with different concentrations of BAP (0, 0.5, 1.0, 2.0 mg/L) were used to investigate the rooting of the explants. The results indicated that the types of the cuttings were different in the rooting capacity and the length of the roots. Moreover, it was found that in comparison with the control treatment, by a rise in the concentrations of the IBA, there was a significant upsurge in the rooting percentage, the root diameter, and the number of the roots. The results indicated that the types of cutting with 1000, 1500 and 2000 mg/L IBA perform better in the root percentage (100%) in the semi hardwood cuttings. The best results, however, were 2000 mg/L IBA in the semi hardwood cuttings, with the number of the roots to be 35.05, and the fresh weight of the roots to be 3.94 g, the dry weight of the roots to be 0.33 g, the length of the roots to be 391.88 cm, the roots diameter to be 1.21 mm, the surface area of the roots to be 121.83 cm2, and the root volume to be 2.99 cm3. Nonetheless, the optimal concentration of Clorox with the time immersion was 20% with the 20-minute immersion time, which produced a shoot induction percentage of 30% dead explants and a mean number of 70.00 shoots per explant and the optim

关键词： Piper betle Rooting Stem Cutting Indole-3-Butyric Acid Micropropagation