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Optimization of Bio-Implantable Power Transmission Efficiency Based on Input Impedance

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Computer Systems Science & Engineering 2021年第7期38卷 17-24页

作者： Bassm H.Abed Jaber H.majeed Najma Abed Habeeb University of Technology Department of Electrical EngineeringBaghdadIraq Almansour University College Communication Engineering DepartmentBaghdadIraq

Recently,the inductive coupling link is the most robust method for powering implanted biomedical devices,such as micro-system stimulators,cochlear implants,and retinal *** research provides a novel theoretical and mathematical analysis to optimize the inductive coupling link efficiency driven by efficient proposed class-E power amplifiers using high and optimum input *** design of the coupling link is based on two pairs of aligned,single-layer,planar spiral circular coils with a proposed geometric dimension,operating at a resonant frequency of 13.56 *** transmitter and receiver coils are small in *** device resistance varies from 200Ωto 500Ωwith 50Ωof *** the conventional load resistance of power amplifiers is 50Ω,the efficiency is 45%;when the optimum resonant load is 41.89Ωwith a coupling coefficient of 0.087,the efficiency increases to 49%.The efficiency optimization is reached by calculating the matching network for the external LC tank of the transmitter *** proposed design may be suitable for active implantable devices.

关键词： Inductive coupling link power amplifier matching network implantable biomedical devices

Roscovitine synergizes with conventional chemo-therapeutic drugs to induce efficient apoptosis of human colorectal cancer cells

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World Journal of Gastroenterology 2008年第33期14卷 5162-5175页

作者： Mohamed Salah I Abaza Abdul-majeed A Bahman Rajaa J Al-Attiyah Molecular Biology Program Department of Biological Sciences Faculty of Science Kuwait UniversitySafaat 13006 Kuwait Department of Microbiology Faculty of Medicine Kuwait UniversitySafaat 13006 Kuwait

AIM: To examine the ability of cyclin-dependent kinase inhibitor (CDKI) roscovitine (Rosco) to enhance the antitumor effects of conventional chemotherapeutic agents acting by different mechanisms against human colorectal cancer. METHODS: Human colorectal cancer cells were treat-ed, individually and in combination, with Rosco, taxol, 5-Fluorouracil (5-FU), doxorubicine or vinblastine. The antiproliferative effects and the type of interaction of Rosco with tested chemotherapeutic drugs were de-termined. Cell cycle alterations were investigated by fluorescence-activated cell sorter FACS analysis. Apop-tosis was determined by DNA fragmentation assay. RESULTS: Rosco inhibited the proliferation of tumor cells in a time-and dose-dependent manner. The ef-ficacies of all tested chemotherapeutic drugs were markedly enhanced 3.0-8.42 × 103 and 130-5.28 × 103 fold in combination with 5 and 10 μg/mL Rosco, re-spectively. The combination of Rosco and chemothera-peutic drugs inhibited the growth of human colorectal cancer cells in an additive or synergistic fashion, and in a time and dose dependent manner. Rosco induced apoptosis and synergized with tested chemothera-peutic drugs to induce efficient apoptosis in human colorectal cancer cells. Sequential, inverted sequential and simultaneous treatment of cancer cells with combi-nations of chemotherapeutic drugs and Rosco arrested the growth of human colorectal cancer cells at various phases of the cell cycle as follows: Taxol/Rosco (G2/M-and S-phases), 5-FU/Rosco (S-phase), Dox/Rosco (S-phase) and Vinb/Rosco (G2/M-and S-phases). CONCLUSION: Since the eff icacy of many anticancer drugs depends on their ability to induce apoptotic cell death, modulation of this parameter by cell cycle inhibi-tors may provide a novel chemo-preventive and chemo-therapeutic strategy for human colorectal cancer.

关键词： Human colorectal cancer cell lines Cyclindependent kinase inhibition Chemosensitization Synergy Apoptosis Cell cycle

Two efficient methods for solving Schlömilch’s integral equation

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International Journal of Intelligent Computing and Cybernetics 2017年第3期10卷 287-309页

作者： majeed Ahmed AL-Jawary Ghassan Hasan Radhi Jure Ravnik Department of Mathematics College of Education for Pure Science/Ibn AL-HaithamUniversity of BaghdadBaghdadIraq Faculty of Mechanical Engineering University of MariborMariborSlovenia

Purpose–In this paper,the exact solutions of the Schlömilch’s integral equation and its linear and non-linear generalized formulas with application are solved by using two efficient iterative *** Schlömilch’s integral equations have many applications in atmospheric,terrestrial physics and ionospheric *** describe the density profile of electrons from the ionospheric for awry occurrence of the quasi-transverse *** paper aims to discuss these ***/methodology/approach–First,the authors apply a regularization method combined with the standard homotopy analysis method to find the exact solutions for all forms of the Schlömilch’s integral ***,the authors implement the regularization method with the variational iteration method for the same *** effectiveness of the regularization-Homotopy method and the regularizationvariational method is shown by using them for several illustrative examples,which have been solved by other authors using the so-called regularization-Adomian ***–The implementation of the two methods demonstrates the usefulness in finding exact *** implications–The authors have applied the developed methodology to the solution of the Rayleigh equation,which is an important equation in fluid dynamics and has a variety of applications in different fields of science and *** include the analysis of batch distillation in chemistry,scattering of electromagnetic waves in physics,isotopic data in contaminant hydrogeology and ***/value–In this paper,two reliable methods have been implemented to solve several examples,where those examples represent the main types of the Schlömilch’s integral *** method has been accompanied with the use of the regularization *** process constructs an efficient dealing to get the exact solutions of the linear and non-linear Schlömilch’s integral equation which is easy to *** addition to that,th

关键词： Regularization Homotopy analysis method Schlömilch’s integral equation Variational iteration method

Single-Bit Comparator in Quantum-Dot Cellular Automata (QCA) Technology Using Novel QCAXNOR Gates

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Journal of Electronic Science and Technology 2021年第3期19卷 263-273页

作者： Ali Hussien majeed Mohd Shamian Zainal Esam Alkaldy Danial Md.NorNor Department of Electrical Engineering University of KufaNajaf 54003 Department of Electrical Engineering Technology Universiti Tun Hussein Onn MalaysiaParit Raja 86400

To fill the continuous needs for faster processing elements with less power consumption causes large pressure on the complementary metal oxide semiconductor(CMOS)technology *** scaling scenario is not an option nowadays and other technologies need to be *** quantum-dot cellular automata(QCA)technology is one of the important emerging nanotechnologies that have attracted much researchers’attention in recent *** technology has many interesting features,such as high speed,low power consumption,and small *** features make it an appropriate alternative to the CMOS *** paper suggests three novel structures of XNOR gates in the QCA *** presented structures do not follow the conventional approaches to the logic gates design but depend on the inherent capabilities of the new *** proposed structures are used as the main building blocks for a single-bit *** resulted circuits are simulated for the verification purpose and then compared with existing counterparts in the *** comparison results are encouraging to append the proposed structures to the library of QCA gates.

关键词： Nanotechnology quantum-dot cellular automata(QCA) QCA comparator XNOR gate XOR gate

Want to make me emotional？ The influence of emotional advertisements on women＇s consumption behavior

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Frontiers of Business Research in China 2017年第3期11卷 341-373页

作者： Salman majeed Changbao Lu Muhammad Usman School of Economics and Management Fuzhou UniversityFuzhou Fujian 350002 People's Republic of China School of Economics and Management Fuzhou University Fuzhou Fujian 350002 People's Republic of China Institute of Business Administration (IBA) Quaid-e-Azamcampus University of the Punjab Lahore 54000 Pakistan Nippon Paint Pakistan (Private) Limited Lahore 54000 Pakistan

A wide difference of opinion exists about the content and composition of emotions. Advertising may influence an audience and their buying decisions about products and services. The objective of this study is to better conceptualize how women emotionally respond to emotional advertisements （EAs）. The variant views are integrated into an ACE model, composed of subordinate levels of emotions （E）, celebrity endorsements （C）, and appeal drivers （A）. This empirical study examines women＇s emotional response using data from 240 Chinese women respondents. The study participants were invited to develop ACE mix based advertisements and fill out questionnaires. PLS-SEM analysis, a novel approach in ACE advertisement development and its applicability to consumer behavior, was used. The results show that showbiz celebrities expressing the emotion of happiness with music and color make the most effective ACE mix to influence the consumption behavior of women. The results are significantly mediated by attention levels and are widely applicable in the burgeoning advertising industry. The study also calls for further research with different ACE mixes in different contexts and on different audiences. It also opens doors for policy making and an appropriate understanding of women＇s consumption behavior in the Chinese context.

关键词： Emotions Celebrity endorsement Appeal drivers Advertisement Consumer behavior

Current Therapeutics in Primary Sclerosing Cholangitis

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Journal of Clinical and Translational Hepatology 2023年第5期11卷 1267-1281页

作者： Natassia Tan John Lubel William Kemp Stuart Roberts Ammar majeed Department of Gastroenterology and Hepatology Alfred HealthCentral Clinical SchoolMonash UniversityMelbourneAustralia

Primary sclerosing cholangitis(PSC)is an orphan,cholestatic liver disease that is characterized by inflammatory biliary strictures with variable progression to end-stage liver *** pathophysiology is poorly *** biliary inflammation is likely driven by immune dysregulation,gut dysbiosis,and environmental exposures resulting in gutliver crosstalk and bile acid metabolism *** is no proven medical therapy that alters disease progression in PSC,with the commonly prescribed ursodeoxycholic acid being shown to improve liver biochemistry at low-moderate doses(15–23 mg/kg/day)but not alter transplant-free survival or liver-related *** transplantation is the only option for patients who develop end-stage liver disease or refractory complications of *** and antifibrotic agents have not proven to be effective,but there is promise for manipulation of the gut microbiome with fecal microbiota transplantation and *** acid manipulation via alternate synthetic bile acids such as norursodeoxycholic acid,or interaction at a transcriptional level via nuclear receptor agonists and fibrates have shown potential in phase II trials in PSC with several leading to larger phase III *** view of the enhanced malignancy risk,statins,and aspirin show potential for reducing the risk of colorectal cancer and cholangiocarcinoma in PSC *** patients who develop clinically relevant strictures with cholestatic symptoms and worsening liver function,balloon dilatation is safer compared with biliary stent insertion with equivalent clinical efficacy.

关键词： Primary sclerosing cholangitis Bile acid Microbiome 24-Norursodeoxycholic acid Farnesoid X receptor agonists Liver transplant

An Intelligent Cluster Optimization Algorithm for Smart Body Area Networks

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Computers, Materials & Continua 2021年第6期67卷 3795-3814页

作者： Adil Mushtaq Muhammad Nadeem majeed Farhan Aadil Muhammad Fahad Khan Sangsoon Lim Department of Software Engineering University of Engineering and TechnologyTaxilaPakistan Department of Computer Science COMSATS University IslamabadAttock CampusPakistan Department of Computer Engineering Sungkyul UniversityAnyang430010Korea

Body Area Networks(BODYNETs)or Wireless Body Area Networks(WBAN),being an important type of ad-hoc network,plays a vital role in multimedia,safety,and traffic management *** BODYNETs,rapid topology changes occur due to high node mobility,which affects the scalability of the *** clustering is one mechanism among many others,which is used to overcome this issue in *** are many clustering algorithms used in this domain to overcome this ***,these algorithms generate a large number of Cluster Heads(CHs),which results in scarce resource utilization and degraded *** this research,an efficient clustering technique is proposed to handle these *** transmission range of BODYNET nodes is dynamically tuned accordingly as per their operational *** optimizing the transmission range,the packet loss ratio is minimized,and link quality is improved,which leads to reduced energy *** select optimal CHs the Whale Optimization Algorithm(WOA)is used based on their fitness,which enhances the network performance by reducing routing *** proposed scheme outclasses the existing state-of-the-art techniques,e.g.,Ant Colony Optimization(ACO),Gray Wolf Optimization(GWO),and Dragonfly Optimization Algorithm(DFA)in terms of energy consumption and cluster building time.

关键词： Bodynets WBAN clustering ad-hoc networks whale optimizer artificial neural networks intelligent transportation system

Physical and mechanical properties of hydroponic lettuce for automatic harvesting

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Information Processing in Agriculture 2021年第4期8卷 550-559页

作者： Wenqi Wang Yidong Ma Longsheng Fu Yongjie Cui Yaqoob majeed College of Mechanical and Electronic Engineering Northwest A&F UniversityYanglingShaanxi 712100China Key Laboratory of Agricultural Internet of Things Ministry of Agriculture and Rural AffairsYangling 712100China Shaanxi Key Laboratory of Agricultural Information Perception and Intelligent Service Yangling 712100China College of Agricultural Equipment Engineering Henan University of Science and TechnologyLuoyang 471003China Centre for Precision and Automated Agricultural Systems Washington State UniversityProsserWA 99350USA

To design an automatic harvesting machine for hydroponic lettuce(Lactuca sativa L.),physical and mechanical properties of hydroponic lettuce were investigated and *** content of stem,root and leaf,geometric characteristics,pulling force,and root cutting force were studied for harvesting hydroponic *** pulling force was examined by a tensile experiment,while the root cutting force was investigated by a shear experiment on the electronic universal testing *** moisture content of hydroponic lettuce was obtained by direct *** data were processed using regression analysis and mathematical statistics method.A regression equation and the law of numerical distribution were *** results showed that the geometric size of different hydroponic lettuce had little difference,and the distribution of physical parameters was *** content was found statistically similar in stem and root(around 91%),while the highest moisture content was found in the leaf of 95.73%.The root cutting force decrease with the increase of cutting speed and decrease with the cutting position move *** minimum average root cutting force in the experiment was 1.41 *** average pulling force was 13 *** study provides adequate theoretical support for the design of the automatic harvesting machine of hydroponic lettuce.

关键词： Greenhouse vegetable Harvester Variance analysis Response surface

Vegetative propagation ofAesculus indica through stem cuttings treated with plant growth regulators

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Journal of Forestry Research 2009年第A2期20卷 171-173,I0004页

作者： Mumtaz majeed M.A. Khan A.H.Mughal Faculty of Forestry Sher-e-Kashmir University of Agricultural Science ＆ Technology Shalimar Srinagar- 191 121 J＆K lndia

Cuttage propagation of Aesculus indica was tested by treatments with different concentrations of indole-3-acetic acid （IAA） @ 2000, 4000 （ppm）, indolebutyric acid （IBA） @ 2000, 4000 （ppm） and naphthlcetic acid （NAA） @ 2000, 4000 （ppm） in dry formulation in the Forest Nursery, Faculty of Forestry, SKUAST-K, Shalimar. The cuttings treated with IBA @ 4000 ppm and IBA @ 2000 ppm had a sprouting rate of 75% and 50%, respectively, which was significantly higher than that of control and other treatments. The highest rooting rate （50%） was recorded in the cuttings with the application of IBA @ 4000 ppm. The cuttings treated with IBA @ 2000 ppm had 25% rooting rate. All other treatments along with control （talc powder） failed to induce rooting. It was concluded that IBA @ 4000 ppm was a better-applied concentration for vegetative propagation ofA. indica under Kashmir conditions.

关键词： Aesculus indica indolebutyric acid rootingi stem cuttings vegetative propagation