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Parametric Energy and Economic Analysis ofModified Combined Cycle Power Plant with Vapor Absorption and Organic Rankine Cycle

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Energy Engineering 2024年第11期121卷 3095-3120页

作者： abdul Moiz Malik Shahzaib abdul ghafoor memon Laveet Kumar Mamdouh El Haj Assad Department of Mechanical Engineering Mehran University of Engineering and TechnologyJamshoro76060Pakistan Department of Mechanical Engineering College of EngineeringQatar UniversityDohaP.O.Box 2713Qatar Department of Sustainable and Renewable Energy Engineering University of SharjahSharjah27272United Arab Emirates

To meet the escalating electricity demand and rising fuel costs,along with notable losses in power transmission,exploring alternative solutions is *** turbines demonstrate high efficiency under ideal International Organization for Standardization(ISO)conditions but face challenges during summer when ambient temperatures reach 40℃.To enhance performance,the proposal suggests cooling inlet air by 15℃using a vapor absorption chiller(VAC),utilizing residual exhaust gases from a combined cycle power plant(CCPP)to maximize power ***,diverting a portion of exhaust gases to drive an organic Rankine cycle(ORC)for supplementary power generation offers added *** integrated approach not only boosts power output but alsominimizes environmental impact by repurposing exhaust gases for additional *** study presents a detailed energy and economic analysis of a modified combine cycle power plant,in Kotri,Pakistan.R600A is used as organic fuel for the ORC while LiBr-H2O solution is used for the *** performance parameters,efficiency and energy utilization factor,Four energetic parameters,Work output of ORC,modified CCPP,original CCPP and cooling rate,and one economics parameter,payback period were examined under varying ambient conditions and mass fraction of exhaust gases from outlet of a gas turbine(ψ).A parametric investigation was conducted within the temperature range of 18℃to 50℃,relative humidity between 70%and 90%,and theψranging from 0 to *** findings reveal that under elevated ambient conditions(40℃,90%humidity)withψat 0,the Energy Utilization Factor(EUF)exceeds 60%.However,the ORC exhibits a low work output of 100KWalongside a high cooling load of 29,000 ***,the modified system demonstrates an augmented work output of approximately 81,850 KWcompared to the original system’s 78,***,the integration of this systemproves advantageous across all ***,the payback period of the system

关键词： Combined cycle power plant vapor absorption chiller organic Rankine cycle

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Genetic Diversity in ex-situ Conserved Lens culinaris for Botanical Descriptors, Biochemical and Molecular Markers and Identification of Landraces from Indigenous Genetic Resources of Pakistan

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Journal of Integrative Plant Biology 2008年第4期50卷 484-490页

作者： Tayyaba Sultana abdul ghafoor Government College University Faisalabad PakistanPlant Genetic Resources Program Institute of Agri Biotechnology and Genetic Resources National Agricultural Research Centre Islamabad Pakistan Government College University Faisalabad Pakistan

Lentil, one of the oldest legumes was investigated for diversity based on botanical descriptors, total seed proteins, isozymes and random amplified polymorphic DNA （RAPD） markers. About one fourth of accessions were heterogeneous for botanical descriptors and a seed protein profile. The germplasm collected from the province of Baluchiatan revealed the prevalence of indigenous landraces as high diversity was observed for all of the techniques. Diversity explored through various techniques revealed validity irrespective of the sample size or geographic pattem, RAPD being the best choice for investigating both inter- and intra-acceaaion variation in lentil. Although all of the techniques were able to resolve genetic diversity in lentil, isozymea and seed proteins gave low levels of genetic diversity, suggesting that more investigation into isozymea of specific proteins is required. RAPD is the best option for determining inter- and intra-acceaaion variation, and will be required to extend germplaama and primers to continue the study of botanical descriptors.

关键词： DNA marker genetic resource lentil sodium dodecyl sulfate-polyacrylamide gel electrophoresis.

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Principal Component Analysis and Minimum Description Length Criterion Based on Through-Wall Image Enhancement

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Chinese Physics Letters 2013年第4期30卷 45-47页

作者： Muhammad Mohsin Riaz abdul ghafoor Department of Electrical Engineering College of SignalsNational University of Sciences and Technology(NUST)IslamabadPakistan

A through-wall image enhancement scheme is proposed based on principal component analysis and minimum description length *** minimum description length criterion is used with principal component analysis to extract target eigen *** proposed scheme is capable of extracting multiple targets from heavy cluttered through-wall *** results of the proposed scheme are compared with existing schemes on the basis of quantitative analysis and visual inspection.

关键词： criterion. Image scheme

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Cooperative Subcarrier Sensing Using Antenna Diversity Based Weighted Virtual Sub Clustering

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China Communications 2016年第10期13卷 44-57页

作者： Bushra Mughal Sajjad Hussain abdul ghafoor College of Signals National University of Sciences and Technology (NUST) School of Engineering University of Glasgow

The idea of cooperation and the clustering amongst cognitive radios(CRs) has recently been focus of attention of research community, owing to its potential to improve performance of spectrum sensing(SS) schemes. This focus has led to the paradigm of cluster based cooperative spectrum sensing(CBCSS). In perspective of high date rate 4th generation wireless systems, which are characterized by orthogonal frequency division multiplexing(OFDM) and spatial diversity, there is a need to devise effective SS strategies. A novel CBCSS scheme is proposed for OFDM subcarrier detection in order to enable the non-contiguous OFDM(NC-OFDM) at the physical layer of CRs for efficient utilization of spectrum holes. Proposed scheme is based on the energy detection in MIMO CR network, using equal gain combiner as diversity combining technique, hard combining(AND, OR and Majority) rule as data fusion technique and antenna diversity based weighted clustering as virtual sub clustering algorithm. Results of proposed CBCSS are compared with conventional CBCSS scheme for AND, OR and Majority data fusion rules. Moreover the effects of antenna diversity, cooperation and cooperating clusters are also discussed.

关键词： cooperative spectrum sensing MIMO based clustering OFDM subcarrier detection energy detection

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Design, mechanism, delivery and therapeutics of canonical and Dicer-substrate siRNA

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Asian Journal of Pharmaceutical Sciences 2019年第5期14卷 497-510页

作者： Maria abdul ghafoor Raja Haliza Katas Muhammad Wahab Amjad Department of Pharmaceutics Faculty of PharmacyNorthern Border UniversityRafha73211Saudi Arabia Centre for Drug Delivery Research Faculty of PharmacyUniversiti Kebangsaan MalaysiaKuala Lumpur50300Malaysia

Upon the discovery of RNA interference(RNAi),canonical small interfering RNA(si RNA) has been recognized to trigger sequence-specific gene silencing. Despite the benefits of si RNAs as potential new drugs,there are obstacles still to be overcome,including off-target effects and immune stimulation. More recently,Dicer substrate si RNA(Dsi RNA) has been introduced as an alternative to si RNA. Similarly,it also is proving to be potent and target-specific,while rendering less immune stimulation. Dsi RNA is 25–30 nucleotides in length,and is further cleaved and processed by the Dicer enzyme. As with si RNA,it is crucial to design and develop a stable,safe,and efficient system for the delivery of Dsi RNA into the cytoplasm of targeted cells. Several polymeric nanoparticle systems have been well established to load Dsi RNA for in vitro and in vivo delivery,thereby overcoming a major hurdle in the therapeutic uses of Dsi RNA. The present review focuses on a comparison of si RNA and Dsi RNA on the basis of their design,mechanism,in vitro and in vivo delivery,and therapeutics.

关键词： RNA interference Drug delivery system Polymeric nanoparticles Gene silencing Gene carrier Non-viral vector

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Clinacanthus nutans:a review of the medicinal uses,pharmacology and phytochemistry

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Asian Pacific Journal of Tropical Medicine 2016年第4期9卷 393-399页

作者： Md.Ariful Alam Sahena Ferdosh Kashif ghafoor Md.abdul Hakim abdul Shukor Juraimi Alfi Khatib Md.Zaidul I.Sarker Faculty of Pharmacy.International Islamic University Malaysia(IIUM) Kuantan Campus Faculty of Science International Islamic University Malaysia(IIUM).Kuantan Campus Department of Food Science and Nutrition King Saud University Institute of Tropical Agriculture University Putra Malaysia Department of Crop Science University Putra Malaysia

Clinacanthus nutans Lindau is known as snake grass belonging to the Acanlhaceae *** plant has diverse and potential medicinal uses in traditional herbal medicine for treating skin rashes,insects and snake bites,lesions caused by herpes simplex virus,diabetes,and gout in *** and *** investigations documented the varied contents of bioaclive compounds from litis plant namely flavonoids,glycosides,*** and *** pharmacological experiment proved that various types of extracts and pure compounds from this species exhibited a broad range of biological properties such as anti-inflammatory,antiviral,antioxidant,and anti-diabetic *** lindings of toxicity study showed that extracts from this plant did not show any toxicity thus it can be used as strong therapeutic agents for specific diseased ***,further experiments on chemical components and their mode of action showing biological activities are required to elucidate the complete phytochemical profile and assess to confirm their suitability tor future *** review summarizes the medicinal uses,phytochemistry and pharmacology of this plant in order to explore its therapeutic potential and gaps necessitating for prospected research work.

关键词： Clinacanthus nutans Medicinal uses Phytochemicals Pharmacology Therapeutic potential

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Fuzzy Logic Attitude Control System for a Mini Helicopter Expanded Non Linear Mathematical Model

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Journal of Aerospace Science and Technology 2016年第1期2卷 19-33页

作者： abdul ghafoor Al-Shehabi Department of Mechanical Engineering University of Alberta Edmonton Canada

Full nonlinear mathematical model for a mini helicopter is very complex, inflexible and has big influence on the designed control system performance. Analytical approach for autonomous helicopter modeling including both swash plate and mixer dynamics additional to miniature helicopter equations of motion is introduced. Attitude control system without linearization process is directly designed using fuzzy logic concepts, fuzzy controllers are implemented in both stability and command augmentation loops. Scaling factors are adjusted to minimize the error. The performance of control system for miniature helicopter expanded nonlinear model using fuzzy logic controllers is evaluated through simulation.

关键词： Flight control fuzzy logic UAV, helicopter swashplate.

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Using Model of a Universe as Similar to a Black Hole, Ask If We Have to Have Singularities, If We Are Looking at Initial Time Step and Entropy, from the Beginning

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Journal of High Energy Physics, Gravitation and Cosmology 2023年第3期9卷 708-719页

作者： Andrew Walcott Beckwith Qazi abdul ghafoor Physics Department Chongqing University Chongqing China Mathematics Department Hazara University Mansehra Pakistan

Based on the idea of cyclic conformal cosmology, we formulate entropy and quantum number n, and then utilize the minimum uncertainty principle, where Delta E times Delta t equals h-bar, to actualize a prototype delta t time stop in the breakup of supermassive black holes into countless Planck mass-sized black holes. This helps to link entropy, time step, and primordial conditions and define when the cosmological constant may form and the initial inflationary expansion “speed”. All this is used to obtain a model of if a singularity, initially is needed.

关键词： Inflation Fifth force Gravitational f Gravitons Hubble Parameter

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Afghanistan： A Glance at Political and Economic Situation

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Contemporary International Relations 2012年第C期22卷 20-24页

作者： abdul ghafoor Poya Faryabi abdul ghafoor Poya Faryabi

Afghanistan began a journey of historic significance--a journey out of the dark decades of oppression and neglect towards a furore of promise and hope. International community has been our companions in this journey, ... 详细信息

关键词：国际关系外交外交政策国际问题

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Investigating Quantum Mechanics in 5^th Dimensional Embedding via Deterministic Structure, Small Scale Factor, and Initial Inflaton Field

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Journal of High Energy Physics, Gravitation and Cosmology 2023年第4期9卷 1181-1186页

作者： Andrew Walcott Beckwith Qazi abdul ghafoor Physics Department College of Physics Chongqing University Chongqing China Mathematics Department Hazara University Manshera Pakistan

We consider if a generalized HUP set greater than or equal to Planck’s constant divided by the square of a scale factor, as well as an inflaton field, yields the result that Delta E times Delta t is embedded in a 5 dimensional field which is within a deterministic structure. Our proof concludes with Delta t as of Planck time, resulting in enormous potential energy. If that potential energy is induced by a repeating universe structure, we get a free value of Delta E that is almost infinite, supporting a prior conclusion.

关键词： Quantum Mechanics Planck’s Constant Potential Energy

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