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Siti Asma’ MOHD ROSDI(Siti Asma’ MOHD ROSDI ),Mohamad Rohieszan RAMDAN(Mohamad Rohieszan RAMDAN ),Sabrinah ADAM(Sabrinah ADAM ),Nursyazwani Mohd FUZI(Nursyazwani Mohd FUZI ),Azila ABDUL RAZAK(Azila AB 한국유통과학회 2022 유통과학연구 Vol.20 No.11
Purpose: This article explores the experiences of Research Universities (RU) on distribution-support technologies in commercialisation with a specific focus in the Malaysian context. Research design, data and methodology: A qualitative research was carried out, in which six RU were interviewed. A structured interview was conducted. To analyse and interpret the data was using an approach adopted in qualitative thematic strategy. The findings were transcribed using Atlas.ti software to analyse related themes through a thematic analysis approach to link theories. Results: The findings provide useful insights into the significant roles of distribution-support technologies on the commercialisation strategy and impacts on the ecosystem of innovation and commercialisation in providing the importance of Distribution-support Technologies to strengthen the role of university-industry-community relation to drive the economy towards a high-income nation. Conclusions: This study will contribute theory through commercialisation literature by adding new knowledge concerning the link between universities and distribution-support technologies in commercialisation. Therefore, the practical contributions are significant for universities; industries; research institutes; government and societies to develop and plan strategically for effective, strategic and sustainable distribution-support technologies in innovation and commercialisation ecosystem.
Asma Mami Maazoun,Takoua Ben Hlel,Soumaya Haouel Hamdi,Feten Belhadj,Jouda Mediouni Ben Jemâa,Mohamed Nejib Marzouki 한국응용곤충학회 2017 Journal of Asia-Pacific Entomology Vol.20 No.3
Interest in botanical insecticides derived from plants has increased as a result of environmental concerns and insect resistance to chemical insecticides. In this study, we explored the insecticidal activity of Urginea maritima bulbs extract and its inhibitory effect on acetylcholinesterase enzyme system in the rice weevil Sitophilus oryzae (L.) (Coleoptera: Curculionidae). Phytochemical screening and HPLC-ESI/TOF-MS analysis revealed the presence of bioactive molecules with high insecticidal potential. Content of polyphenols (130.88 ± 0.44 mg GAE/g FW), flavonoids (50.81 ± 0.25 mg RE/g FW) as well as alkaloids (12.09 ± 0.16 mg AE/g FW) were high. HPLCESI/ TOF-MS analysis results demonstrated that ferulic acid (124.19 μg/g FW), vanillic acid (75.84 μg/g FW) and 4-hydroxybenzoic acid (59.73 μg/g FW) were the major phenolic compounds of U. maritima bulbs extract. The toxic potential against the rice weevil using contact and repellent bioassays showed the highest insecticidal potential of U. maritima bulbs extract. The LD50, LC50 and RC50 values were 19.03 μg/insect, 2.35 μg/cm2 and 0.009 μg/cm2 for contact bioassay by topical application, contact bioassay by treated filter paper method and repellent bioassay, respectively. Furthermore, U. maritima bulbs extract inhibited acetylcholinesterase (AChE) activity and median inhibition concentration IC50 was evaluated to 66.08 μg/ml. The findings of the present investigation confirmed that Urginea maritima may be recommended as an eco-friendly alternative to synthetic insecticides.
Asma M. Elsharif,Ismail Abdulazeez,Monerah A. Almarzooq,Shamsuddeen A. Haladu 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.116 No.-
In this study, three new non-ionic surfactants containing more than one active site and their nanohybrid’sderivatives were characterized and synthesized as effective corrosion inhibitors against steel using a newenvironmentally friendly protocol synthesis and traditional methods. All the newly prepared non-ionicsurfactants were confirmed by Fourier infrared (FTIR), NMR spectroscopy, and elemental analysis. Furthermore, the formation of the prepared nanoparticles and nanohybrid silver nanoparticles (HPDS,HPDO, and HPDE) were confirmed using ultraviolet–visible (UV–vis) spectroscopy. Scanning electronmicroscopy (SEM) was also used to characterize AgNPs and nanohybrid’s derivatives (HPDS, HPDO,and HPDE). The molecules exhibited excellent corrosion inhibitive performance in the acid medium withthe nanohybrid’s molecules achieving 98.8, 93.7, and 99.9 % at 200 ppm, for LANH, OANH, and SANH,respectively. The nanohybrid’s inhibitors described in this paper show better efficacy than the inhibitorsmentioned in the previous papers because they achieved a very excellent inhibition efficiency of up to99.9 % by environmentally friendly methods and at the lowest possible cost. In addition, it has the advantagethat it is compatible with many complex mixtures because it remains neutral in aqueous solutions,which makes it good at inhibiting corrosion of steel in acidic medium and important in oil and gas industry. The molecules were found to exhibit chemisorption on mild steel surface in acid media and fit theLangmuir adsorption isotherms with free energies of adsorption of 38.79, 36.52, and 38.46 kJ/molfor the LANH, OANH, and SANH, respectively. Similarly, the molecular level adsorption studies derivedfrom density functional theory resulted in theoretical adsorption energies of 364.7, 385.6, and427.9 kcal/mol for the nanohybrid’s molecules, indicating the strong adsorption and consequentlyhigher suppression of mild steel corrosion by the compounds.
Dielectric and impedance studies of DBSA doped polyaniline/PVC composites
Asma B. Afzal,M. Javed Akhtar,Muhammad Nadeem,M.M. Hassan 한국물리학회 2010 Current Applied Physics Vol.10 No.2
Polyaniline (PANI) was doped with dodecylbenzene sulfonic acid (DBSA) and then mixed with PVC by solution blending method to prepare DBSA doped PANI (PAND)/PVC composites. FTIR spectroscopy indicates the strong dipole–dipole interaction between the individual components of the composites. The ac electrical properties of the synthesized composites were investigated by complex impedance spectroscopy in the frequency range of 0.5–106 Hz at room temperature. Both dielectric loss factor and permittivity increase with the decrease of frequency exhibiting strong interfacial polarization at low frequency. Addition of PAND in PVC reduces the charge trapping centers by increasing the number of conducting channels participating in the relaxation process; hence an increase in conductivity is observed.
Wear Behavior of Biodegradable Mg–5Zn–1Y–(0–1)Ca Magnesium Alloy in Simulated Body Fluid
Asma Ghanbari,Hassan Jafari,Faramarz Ashenai Ghasemi 대한금속·재료학회 2020 METALS AND MATERIALS International Vol.26 No.3
In this study, wear behavior of biodegradable Mg–5Zn–1Y–(0–1)Ca alloys is investigated in simulated body fluid. Weartest is performed using a pin-on-disc system, under three different loads of 10, 20 and 40 N, at ambient temperature; andthe whole configuration is exposed to simulated body fluid. The volumetric wear rate and friction coefficient of each alloyare determined. The worn surfaces are analyzed using a scanning electron microscope, equipped with an energy dispersivespectrometer to determine the involved main wear mechanism. The Ca-free alloy contains α-Mg and intermetallic Mg3YZn6,and Ca addition produces another intermetallic Ca2Mg6Zn3. Results show that different wear mechanisms and rates, as wellas friction coefficients, are achieved due to the effect of simulated body fluid on the alloys with regards to the different Cacontent and the presence of corrosion products. Microscopic studies reveal that abrasion is the dominant wear mechanismtaken place in all alloys under all loads. Increasing Ca content leads to wear resistance deterioration while increasing wearload results in decreasing wear rate and friction coefficient of the alloys. The results of the wear rate and friction coefficientof Mg–5Zn–1Y–1Ca alloy exhibit greater instability compared to the other alloys due to its more enhanced corrosion causedby the formation of the intermetallic Ca2Mg6Zn3particles. In total, Ca-free alloy provides the best wear resistance, especiallyat the higher wear load.
Determinants of Consumer Satisfaction in Fast Food Industry of Lahore Pakistan
Asma Ali,Jong-In Lee 한국식생활문화학회 2019 韓國食生活文化學會誌 Vol.34 No.4
The purpose of this study is to analyze and evaluate the key success factors for the fast food industry in the region of Lahore Pakistan. Fast food concept developed very speedily in the last few years in Lahore region. The success or failure of a fast food industry based on some factors like Physical environment, Brand-name, Food quality, Price, Taste, Promotional activity, Habitual consumption, Health threats, Consumer expectation, and Family meal. To identify which of these factors has a greater influence on consumer satisfaction, four fast food restaurants such as McDonald’s, PIZZA HUT, KFC, and subway were targeted randomly. The proposed research is quantitative in nature and for data collection; a random sampling technique was used. A questionnaire survey answered by 273 people was considered in this research. Data have been analyzed through statistical techniques. It is observed that Brand name, Food quality, Physical environment, Health threats, Price, Family meals, Habitual consumption, and Consumer expectation showed significant impacts on Fast food industry compared to other factors evaluated herein.
Asma Z. Dhunny,Michel R. Lollchund,Soonil D.D.V. Rughooputh 한국풍공학회 2015 Wind and Structures, An International Journal (WAS Vol.20 No.4
A wind energy assessment is an integrated analysis of the potential of wind energy resources ofa particular area. In this work, the wind energy potentials for Mauritius have been assessed using aComputational Fluid Dynamics (CFD) model. The approach employed in this work aims to enhance theassessment of wind energy potentials for the siting of large-scale wind farms in the island. Validation of themodel is done by comparing simulated wind speed data to experimental ones measured at specific locationsover the island. The local wind velocity resulting from the CFD simulations are used to compute theweighted-sum power density including annual directional inflow variations determined by wind roses. Themodel is used to generate contour maps of velocity and power, for Mauritius at a resolution of 500 m.
Asma Khemis,Abdelmadjid Hacene Chaouche,Allaeddine Athmani,Kong Fah Tee 국제구조공학회 2016 Structural Engineering and Mechanics, An Int'l Jou Vol.59 No.4
The failure of civil engineering systems is a consequence of decision making under uncertain conditions. Generally, buried flexible pipes are designed for their transversal behavior to prevent from the important failure mode of buckling. However, the interaction effects between soil and pipe are neglected and the uncertainties in their properties are usually not considered in pipe design. In this regard, the present research paper evaluates the effects of these uncertainties on the uncertainty of the critical buckling hoop force of flexible pipes shallowly buried using the subgrade reaction theory (Winkler model) and First-Order Second-Moment (FOSM) method. The results show that the structural uncertainties of the studied pipes and those of the soil properties have a significant effect on the uncertainty of the critical buckling hoop force, and therefore taking into account these latter in the design of the shallowly flexible pipes for their buckling behavior is required.
Asma Deeb,Nabras Al Qahtani,Amal Al Ali,Mariette Akle 대한소아내분비학회 2017 Annals of Pediatirc Endocrinology & Metabolism Vol.22 No.3
Purpose: Insulin pumps are widely used in diabetes. They are equipped with safety alarms to alert users. Pump manuals contain alarm codes and how to troubleshoot them. However, these manuals are lengthy and difficult to use, particularly in emergencies. We aim to assess the impact of targeted education on warnings and errors in improving competency to troubleshoot the alarms. Methods: Twentyone patients, with a median age of 13, were recruited over a 5month period. Each patient had 2 study visits. The frequencies and types of alarms were recorded, and patients were given a summary sheet that outlined common alarms encountered and troubleshooting tips. In visit 2, the frequencies and types of alarms were compared to those of visit 1. The patients were asked to fill a questionnaire and to rate the education session given in visit 1, their level of competency in decrypting alarm codes, and their promptness in responding to alarms. Results: Low cartridge (W1), low battery (W2), and bolus cancelled (W8) were the commonest warnings. The most noted errors were occlusion (E4), power interruption (E8), empty battery (E2), set not primed (E11), and cartridge empty (E1). The numbers of warning and error signals markedly decreased after targeted education (P<0.05). The ability in decrypting warning signals significantly improved (P=0.02), and the frequency of response to pump alarms significantly increased (P=0.001). Conclusion: Certain warnings and errors are more common than others in insulin pumps. Targeted education is useful in improving competency and response of patients in managing pump alarms.