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Ahmad, Nazir,Ahmed, Iftikhar,Shahzad, Armghan,Khalid, Nauman,Mehboob, Farrakh,Ahad, Karam,Ali, Ghulam Muhammad The Korean Society for Applied Biological Chemistr 2014 Applied Biological Chemistry (Appl Biol Chem) Vol.57 No.3
Phenol is a toxic pollutant found in effluent of numerous industries and its elimination is a foremost challenge. The utilization of bacteria plays a crucial role in phenol bioremediation. For isolation of phenol degrading bacteria, sample was collected from industrial waste and enriched in mineral salt medium (MSM) contained 300 mg/L phenol. The strain was identified based on 16S rRNA gene analysis as Pseudomonas species and the phylogenetic analysis affiliated the strain with Pseudomonas monteilii (AF064458) as the most closely related species. Phenol tolerance of the strain in MSM supplemented with various concentrations of phenol indicates that the strain NCCP-407 can grow best at $750mgL^{-1}$ phenol. The strain showed complete degradation of $750mgL^{-1}$ phenol in 56 hours when supplement as a sole source of carbon and energy with the average degradation rate of $28mgL^{-1}h^{-1}$. The doubling time was recorded approximately as $12.49h^{-1}$. The present study suggests that this strain is efficient in phenol degradation and can be used in treatment of wastewater containing phenol.
Nazir Ahmad,Iftikhar Ahmed,Armghan Shahzad,Nauman Khalid,Farrakh Mehboob,Karam Ahad,Ghulam Muhammad Ali 한국응용생명화학회 2014 Applied Biological Chemistry (Appl Biol Chem) Vol.57 No.3
Phenol is a toxic pollutant found in effluent ofnumerous industries and its elimination is a foremost challenge. The utilization of bacteria plays a crucial role in phenol bioremediation. For isolation of phenol degrading bacteria, sample was collectedfrom industrial waste and enriched in mineral salt medium (MSM)contained 300 mg/L phenol. The strain was identified based on16S rRNA gene analysis as Pseudomonas species and thephylogenetic analysis affiliated the strain with Pseudomonasmonteilii (AF064458) as the most closely related species. Phenoltolerance of the strain in MSM supplemented with variousconcentrations of phenol indicates that the strain NCCP-407 cangrow best at 750 mg L−1 phenol. The strain showed completedegradation of 750 mg L−1 phenol in 56 hours when supplementas a sole source of carbon and energy with the average degradationrate of 28mg L−1 h−1. The doubling time was recorded approximatelyas 12.49 h−1. The present study suggests that this strain is efficientin phenol degradation and can be used in treatment of wastewatercontaining phenol.
Kiani Malkah Noor,Ahmad Mehboob,Gillani Syed Hussain Mustafa 기술경영경제학회 2019 ASIAN JOURNAL OF TECHNOLOGY INNOVATION Vol.27 No.2
Espousing a continuous innovation in existing business models is a necessity to sustain in present dynamic status quo of emerging mobile banking sector of Pakistan. Therefore, this research aims to empirically investigate the factors that affect the business model innovation among the key players of the mobile banking sector of Pakistan. In this regard, four research questions have been formulated. Research survey has been conducted from the 365 employees of mobile banking sector of Pakistan through a stratified sampling strategy. The collected data were analyzed using the regression-based process approach of Andrew Hayes [2017. Introduction to mediation, moderation, and conditional process analysis: A regression-based approach. Guilford Press]. The results of the collected data revealed that the service innovation capabilities, innovation success and knowledge exploration serve as the antecedents of business model innovation among Pakistani mobile banking sector. The contribution of this research work is evident from the fact that no or negligible researches on the business model innovation have been carried earlier in the cultural context of Pakistan. Furthermore, this research work attempts to close some of the identified gaps in the literature.
Ali, Ghulam,Patil, Supriya A.,Mehboob, Sheeraz,Ahmad, Mashkoor,Ha, Heung Yong,Kim, Hak-Sung,Chung, Kyung Yoon Elsevier 2019 Journal of Power Sources Vol.419 No.-
<P><B>Abstract</B></P> <P>High-performance electrode materials for lithium-ion batteries (LIBs) are urgently required to meet the requirement of the widespread use of energy storage devices from small-to large-scale applications. In this regard, ultra-small nanocrystalline SnO<SUB>2</SUB> particles with a size of ∼3 nm are synthesized using a simple hydrothermal method and investigated as a high capacity anode material for LIBs. The SnO<SUB>2</SUB> anode shows a high reversible capacity of 1026 mAh g<SUP>−1</SUP> at a current density of 150 mA g<SUP>−1</SUP>. The kinetic study of the anode material is conducted and compared using cyclic voltammetry, electrochemical impedance spectroscopy and galvanostatic intermittent titration techniques and the lithium diffusion coefficient at open circuit potential is calculated to be 3.71978 × 10<SUP>−13</SUP>, 1.818 × 10<SUP>−14</SUP>, and ∼1.82 × 10<SUP>−16</SUP> cm<SUP>2</SUP> s<SUP>−1</SUP>, respectively. The reaction mechanism of highly reversible SnO<SUB>2</SUB> nanoparticles is investigated using ex-situ XRD, XPS, in-situ X-ray absorption near edge spectroscopy, and TEM and the results reveal the formation of lithium-tin alloy in the lithiated electrode and reversible formation of SnO<SUB>2</SUB> upon delithiation.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Ultra-small nanocrystalline SnO<SUB>2</SUB> particles with a size of 3 nm are synthesized. </LI> <LI> SnO<SUB>2</SUB> nanocrystalline electrode shows a specific capacity of 1026 mAh g<SUP>−1</SUP>. </LI> <LI> This electrode delivers a 350 mAh g<SUP>−1</SUP> at a high current density of 2 A g<SUP>−1</SUP>. </LI> <LI> Li kinetic study was performed and compared using CV, EIS, and GITT. </LI> <LI> The reaction mechanism was revealed using ex-situ XRD, XPS, and TEM. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
A UML-based Approach towards Test Case Generation and Optimization
Shahid Saleem,Saif U. R. Malik,Bilal Mehboob,Roobaea Alroobaea,Sultan Algarni,Abdullah M. Baqasah,Naveed Ahmad,Muhammad Hasnain 한국인터넷정보학회 2024 KSII Transactions on Internet and Information Syst Vol.18 No.3
Software testing is an important phase as it ensures the software quality. The software testing process comprises of three steps: generation, execution, and evaluation of test cases. Literature claims the usage of single and multiple 'Unified Modeling Language' (UML) diagrams to generate test cases. Using multiple UML diagrams increases test case coverage. However, the existing approaches show limitations in test case generation from UML diagrams. Therefore, in this research study, we propose an approach to generate the test cases using UML State Chart Diagram (SCD), Activity Diagram (AD), and Sequence Diagram (SD). The proposed approach transforms UML diagrams into intermediate forms: SCD Graph, AD Graph, and SD Graph respectively. Furthermore, by integrating these three graphs, a System Testing Graph (STG) is formed. Finally, test cases are identified from STG by using a traversal algorithm such as Depth First Search (DFS) that is an optimization method. The results show that the proposed approach is better compared to existing approaches in terms of coverage and performance. Moreover, the generated test cases have the ability to detect faults at the unit level, integration, and system level testing.
Sarir Uddin,Abid Zaman,Imtiaz Rasool,Sadiq Akbar,Muhammad Kamran,Nasir Mehboob,Asad Ali,Abid Ahmad,Muhammad Farooq Nasir,Zafar Iqbal 한양대학교 세라믹연구소 2020 Journal of Ceramic Processing Research Vol.21 No.6
The effects of Ba substitution on the phase analysis, microstructure and microwave dielectric properties of Ca1-xBaxTiO3ceramics were prepared through conventional solid state reaction route. The X-ray diffraction analysis of the samples showedthat the specimens Ca1-xBaxTiO3 presented single phase compound with orthorhombic structure in the range of x=0.0 to 0.7when sintered at 1300oC for 3hrs in air. From the morphological point of view, it consists of round and rod shaped grains withporous microstructure. The substitution of Ba2+ ions over Ca2+, the microwave dielectric constant (εr) diminishes from 145 to52 whereas the quality factor (Qxf) will increases from 8105 to 24305 GHz and temperature coefficient of resonant frequencydecreases from 705 to 80 ppm/oC (at 3 GHz).