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- 저자 : Haider Shafiq (검색결과 3 건)
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Ijlal Haider,Habib-ur-Rehman Khalid,Umair Shafiq Khan 제어로봇시스템학회 2014 제어로봇시스템학회 국제학술대회 논문집 Vol.2014 No.10
This paper estimates the performance of a Conventional PID versus Fuzzy Logic based PID for the process of controlling Non-Linear SI-Engine Speed and AFR (Air to Fuel Ratio). Dynamic SI Engine Model regarding Speed and AFR is discussed, and Fuzzy Logic PID control is shown to have better performance over Conventional PID control algorithm. Design and Simulation Results are shown using MATLAB/Simulink.
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Mariyam,Muhammad Shafiq,Muhammad Haseeb,Rana Muhammad Atif,Syed Agha Armaghan Asad Abbas Naqvi,Numan Ali,Muhammad Arshad Javed,Fizza Gillani,Muhammad Saleem Haider 한국원예학회 2021 Horticulture, Environment, and Biotechnology Vol.62 No.6
DNA binding with one fi nger (Dof) proteins are encoded by a ubiquitous plant-specifi c transcription factor gene family thatplays a critical role in various biological processes including fruit ripening and organogenesis. The wild olive ( Olea europaeavar. sylvestris v1.0 ) genome was used to identify Dof gene family members using a set of bioinformatics tools. Gene structure,chromosome locations, phylogeny, protein motifs, miRNA targets and tissue-specifi c expression patterns were analyzed. Here, we identifi ed 51 potential Dof genes unevenly distributed on all chromosomes and a few scaff olds. Dof proteins in oliveclustered into eight subgroups (D1, B2, C3, C2.2, C1, C2.1, B1, and A) based on the established Arabidopsis classifi cation. The prevalence of segmental duplication was observed as compared to tandem duplication, and this was the main factorunderlying the expansion of the Dof gene family in olive. Tissue-specifi c expression profi ling of Oeu Dof genes revealed thatthe majority of Oeu Dof genes were highly expressed in fl owers, stem and meristem tissues. In seed and meristem tissues,cis-regulatory element (CRE) analysis revealed the presence of elements that are specifi cally responsive to light, circadian,auxin, and ABA. In addition, a comparative analysis between Dof genes in olive and Arabidopsis revealed eight groups orsub-families, although the C3 group of Arabidopsis was not represented in olive. This extensive genome evaluation of theDof gene family in olive presents a reference for cloning and functional analysis of the members of this gene family.
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Ali Sadaqat,Haider Shafiq,Huda Aamina Bintul,Hadi Hussain,Ammar Khawaja 대한전기학회 2023 Journal of Electrical Engineering & Technology Vol.18 No.2
In this manuscript, various balanced-truncation methods for limited frequency interval model order reduction applications of unstable second order systems (SOSs) are considered. Limited interval gramians are computed by solving the proposed algebraic Lyapunov equations (CALEs). Reduced order model (ROM) performance is optimized in required interval of frequency. It is observed that CALEs for unstable-SOSs become unsolvable and thus halt the reduction-procedure. To bridle this restraint, in first proposed method, fragmentation of continuous time unstable SOS in to stable and unstable segments is performed and ROM for stable part is computed. ROM thus acquired for stable segment is appended with unstable segment to obtain the reduced model in total. However, SOS-structure in ROM obtained from first proposed method gets lost and appended unstable part degrade ROM integrity. To avert these restraints, in later part, structure preserving approaches for unstable SOSs are presented. In structure preserving technique, system is made stable using Bernoulli feedback and gramians are calculated by solving frequency-limited CALEs. The resultant gramians are partitioned in to position and velocity portions in order to achieve structure-preservation so that interpretation of original-system is retained. The partitioned gramians are balanced with different combinations to achieve various second order balancing procedures that provide ROM with optimized performance in required frequency-interval. The comparison of proposed frequency-limited and infinite interval procedures is performed to prove the superiority of proposed procedures for multiple systems. The proposed development can be utilized for ROM performance optimization applications in limited-frequency interval for unstable-SOSs.
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