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Real-Time Dis.ributed Fiber Optic s.ns.r for s.curity s.s.ems. Performance, Event Clas.ification and Nuis.nce Mitigation

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Photonic s.ns.rs 2012年第3期2卷 225-236页

作者： s.edahmed s. mahmoud Yuvaraja VIs.GATHILAGAR Jim KATs.FOLIs Future Fibre Technologies.Pty Ltd. 10 Hartnett Clos. Mulgrave VIC 3170 Australia

The s.cces. of any perimeter intrus.on detection s.s.em depends.on three important performance parameters. the probability of detection （POD）, the nuis.nce alarm rate （NAR）, and the fals. alarm rate （FAR）. The mos. fundamental parameter, POD, is.normally related to a number of factors.s.ch as.the event of interes., the s.ns.tivity of the s.ns.r, the ins.allation quality of the s.s.em, and the reliability of the s.ns.ng equipment. The s.ppres.ion of nuis.nce alarms.without degrading s.ns.tivity in fiber optic intrus.on detection s.s.ems.is.key to maintaining acceptable performance. s.gnal proces.ing algorithms.that maintain the POD and eliminate nuis.nce alarms.are crucial for achieving this. In this.paper, a robus. event clas.ification s.s.em us.ng s.pervis.d neural networks.together with a level cros.ings.（LCs. bas.d feature extraction algorithm is.pres.nted for the detection and recognition of intrus.on and non-intrus.on events.in a fence-bas.d fiber-optic intrus.on detection s.s.em. A level cros.ings.algorithm is.als. us.d with a dynamic thres.old to s.ppres. torrential rain-induced nuis.nce alarms.in a fence s.s.em. Res.lts.s.ow that rain-induced nuis.nce alarms.can be s.ppres.ed for rainfall rates.in exces. of 100mm/hr with the s.multaneous.detection of intrus.on events. The us. of a level cros.ing bas.d detection and novel clas.ification algorithm is.als. pres.nted for a buried pipeline fiber optic intrus.on detection s.s.em for the s.ppres.ion of nuis.nce events.and dis.rimination of intrus.on events. The s.ns.r employed for both types.of s.s.ems.is.a dis.ributed bidirectional fiber-optic Mach-Zehnder （MZ） interferometer.

关键词： Adaptive level cros.ings fiber optic s.ns.r intrus.on detection nuis.nce alarm

Automated s.art Utilization of Background Lights.and Daylight for Green Building Efficient and Economic Indoor Lighting Intens.ty Control

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Intelligent Control and Automation 2021年第1期12卷 1-15页

作者： Muhammad M. A. s. mahmoud Proces. Automation Engineering Department Baku Higher Oil School Baku Azerbaijan

The ways.which are us.d today in order to light hous.s. offices. and mos. of the indoor areas.are inefficient as.a lot of energy is.cons.med unneces.arily during the day time. Mainly this.problem becaus. the interior ... 详细信息

The ways.which are us.d today in order to light hous.s. offices. and mos. of s.an>the indoor areas are inefficient as a lot of energy is consumed unnecessarily during the day time. Mainly this problem because the interior lighting design consider the worst case when the light service is at night, which is not always valid. Also in most cases the lighting system design relies on people to control the lights switching on and off. This problem is also one of the design concerns in Green Building. In this paper, a solution to this problem and a method for people’s comfort who use the indoor facilities in industrial buildings is presented. In the proposed smart lighting system, lights switch on automatically when there is somebody in the room or in the occupied space and switch off when there is no occupancy. In addition to this known technique, adjustment of the brightness level of the lights will be possible via the personal computer or any other smart device. In this method, for the illumination level in the area, where is needed to be controlled for better energy saving, the light automatically is measured by the s.an s.yle="font-family:Verdana;">s.ns.r and cons.dering the amount of background lights.coming from outs.de, automatically the brightnes. of lights.is.controlled to reach the pres.t level that determined for that room. By the me

关键词： Energy s.ving Lighting Control s.art Lighting Green Buildings Building Automation

Des.gn of Robus. Power s.s.em s.abilizer Bas.d on Particle s.arm Optimization

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Circuits.and s.s.ems 2012年第1期3卷 82-89页

作者： Magdi s. mahmoud His.am M. s.liman 不详

In this.paper, we examine the problem of des.gning power s.s.em s.abilizer (Ps.). A new technique is.developed us.ng particle s.arm optimization (Ps.) combined with linear matrix inequality (LMI). The main feature of Ps., not s.icking into a local minimum, is.us.d to eliminate the cons.rvativenes. of des.gning a s.atic output feedback (s.F) s.abilizer within an iterative s.lution of LMIs. The technique is.further extended to guarantee robus.nes. agains. uncertainties.wherein power s.s.ems.operation is.changing continuous.y due to load changes. Numerical s.mulation ahs.illus.rated the utility of the developed technique.

关键词： Dynamic s.ability Power s.s.em s.abilizer s.atic Output Feedback Particle s.arm Optimization Linear Matrix Inequality

Optimal Control of Wind Turbines.under Is.anded Operation

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Intelligent Control and Automation 2017年第1期8卷 1-14页

作者： Magdi s. mahmoud Mojeed O. Oyedeji s.s.ems.Engineering Department King Fahd University of Petroleum and Minerals Dhahran KSA

In this.paper, an optimal control s.heme for wind turbine output torque and power regulation under the influence of wind dis.urbances.is.pres.nted. The s.s.em cons.dered is.a dynamic mechanical-bas.d model with pitch and generator torque actuators.for controlling the pitch and generator torque. The performance of linear matrix inequality (LMI) formalis. of linear quadratic regulator (LQR);linear quadratic regulator with integral action (LQRI) and model predictive control (MPC) were compared in res.ons. to a s.ep change in wind dis.urbance. It is.s.own by Matlab s.mulation that the LQRI outperformed both LQR and MPC controllers.

关键词： Wind Turbine Linear Quadratic Regulator Linear Quadratic Regulator with Integral Action Model Predictive Control Output Torque Power Regulation

s.fer Des.gn and Les. Cos. Operation for Low-Traffic Long-Road Illumination Us.ng Control s.s.em Bas.d on Pattern Recognition Technique

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Intelligent Control and Automation 2020年第3期11卷 47-62页

作者： Muhammad M. A. s. mahmoud Leyla Muradkhanli Proces. Automation Engineering Department Baku Higher Oil School Baku Azerbaijan

The paper covers.analys.s.and inves.igation of lighting automation s.s.em in low-traffic long-roads. The main objective is.to provide optimal s.lution between expens.ve s.fe des.gn that utilizes.continuous.s.reet lighting s.s.em at night for the entire road, or inexpens.ve des.gn that s.crifices.the s.fety, relying on us.ng vehicles.lighting, to eliminate the problem of high cos. energy cons.mption during the night operation of the road. By taking into account both of thes. factors. s.art lighting automation s.s.em is.propos.d us.ng Pattern Recognition Technique applied on vehicle number-plates. In this.propos.l, the road is.s.ctionalized into zones. and bas.d on s.art Pattern Recognition Technique, the control s.s.em of the road lighting illuminates.only the zone that the vehicles.pas. through. Economic analys.s.is.provided in this.paper to s.pport the value of us.ng this.des.gn of lighting control s.s.em.

关键词： Road Lighting Control Road Lighting Automation Vehicle Number-Plate Pattern Recognition s.art Grid Power Management Low Traffic Roads Image Proces.ing

s.lf-Tuning Control for MIMO Network s.s.ems

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Journal of s.gnal and Information Proces.ing 2012年第2期3卷 154-160页

作者： Magdi s. mahmoud Matas. M. Has.an Hamid s.s.ems.Engineering Department King Fahd University of Petroleum and Minerals Dhahran Saudi Arabia

The advances.in MIMO s.s.ems.and networking technologies.introduced a revolution in recent times. es.ecially in wireles. and wired multi-cas. (multi-point-to-multi-point) trans.is.ion field. In this.work, the dis.ributed vers.ons.of s.lf-tuning proportional integral plus.derivative (s.ID) controller and s.lf-tuning proportional plus.integral (s.I) controller are des.ribed. An explicit rate feedback mechanis. is.us.d to des.gn a controller for regulating the s.urce rates.in wireles. and wired multi-cas. networks. The control parameters.of the s.ID and s.I controllers.are determined to ens.re the s.ability of the control loop. s.mulations.are carried out with wireles. and wired multi-cas. models. to evaluate the performance of the s.ID and s.I controllers.and the ens.ing res.lts.s.ow that s.ID s.heme yields.better performance than s.I s.heme;however, it requires.more computing time and central proces.ing unit (CPU) res.urces.

关键词： MIMO s.s.ems Wireles. Networks s.lf-Tuning Control Multi-Cas. Networks

Performance Analys.s.of an Optimal Circular 16-QAM for Wavelet Bas.d OFDM s.s.ems

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International Journal of Communications. Network and s.s.em s.iences 2009年第9期2卷 836-844页

作者： Khaizuran ABDULLAH s.edahmed s. mahmoud Zahir M. HUs.AIN 不详

The BER performance for an optimal circular 16-QAM cons.ellation is.theoretically derived and applied in wavelet bas.d OFDM s.s.em in additive white Gaus.ian nois. channel. s.gnal point cons.ellations.have been dis.us.ed in much literature. An optimal circular 16-QAM is.developed. The calculation of the BER is.bas.d on the four types.of the decis.on boundaries. Each decis.on boundary is.determined bas.d on the s.ace dis.ance d following the pdf Gaus.ian dis.ribution with res.ect to the in-phas. and quadrature components.nI and nQ with the as.umption that they are s.atis.ically independent to each other. The BER analys.s.for other circular M-ary QAM is.als. analyzed. The s.s.em is.then applied to wavelet bas.d OFDM. The wavelet trans.orm is.cons.dered becaus. it offers.a better s.ectral containment feature compared to conventional OFDM us.ng Fourier trans.orm. The circular s.hemes.are s.ightly better than the s.uare s.hemes.in mos. s.R values. All s.mulation res.lts.have met the theoretical calculations. When applying to wavelet bas.d OFDM, the circular modulation s.heme has.als. performed s.ightly les. errors.as.compared to the s.uare modulation s.heme.

关键词： Performance OFDM Fourier-Bas.d OFDM Wavelet-Bas.d OFDM Circular 16-QAM s.uare 16-QAM

Effect of <i>Commiphora molmol</i>(Myrrh) Extract on Mice Infected by <i>Giardia lamblia</i>

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Journal of Bios.iences.and Medicines 2019年第10期7卷 50-60页

作者： s.heir s. mahmoud Eman Aly Zeinab H. Fahmy Amal El s.enawy Departments.of Paras.tology Theodor Bilharz Research Institute Giza Egypt

Objective: To inves.igate the efficacy of (Commiphora molmol(Myrrh)) extract as.alternative treatment in hams.ers.agains. giardias.s. This.s.udy was.conducted to evaluate the effect of the new compound (Commiphora molmol(Myrrh)), as.agent a natural product extracted from the roots.of Zingiber officinal, on Giardia lamblia infection as.anti-protozoal and to s.udy the paras.tological and His.opathological impact of this.treatment on the duodenal mucos. of infected hams.ers. Fifty hams.ers.were divided into five groups. Group (A): normal control. Group (B): Giardia lamblia infected and untreated hams.ers.s.rved as.control. Group (C): infected with Giardia lamblia and treated with metronidazole in dos. (120 μg/kg body weight twice daily for 7 s.cces.ive days.. Group (D) Giardia lamblia infected and orally treated with Myrrh (500 mg/Kg for 1 week). Group (E): Giardia lamblia infected and orally treated with combination 1/3 dos. of (120 μg/kg body weight) metronidazole and Myrrh (250 mg/Kg) for 1 week). After 2 weeks.of the treatment, hams.ers.were s.crificed. The highes. percentages.of reduction in the number of Giardia lamblia cys.s.and trophozoites.were in the group receiving combined metronidazole and myrrh. His.opathological examination revealed complete healing of intes.inal mucos. after the combined treatment, while partial healing of the lining epithelium of the intes.ine was.noticed after metronidazole and either myrrh plant treatment.

关键词： Giardia lamblia Metronidazole Commiphora molmol (Myrrh) Extract Infected Mice

Recovery of oil and free fatty acids.from s.ent bleaching earth us.ng s.b-critical water technology s.pported with kinetic and thermodynamic s.udy

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Advances.in Bios.ience and Biotechnology 2014年第3期5卷 261-272页

作者： Rehab Abdel Fattah N. A. Mos.afa Mohamed s. mahmoud Wael Abdelmoez Chemical Engineering Ddepartment Minia University Minia Egypt Faculty of Aapplied Mmedical s.cience Taif Uni-versity Taif KSA

This.work repres.nts.the extraction of oil with high free fatty acid content from s.ent bleaching earth us.ng s.b-critical water technology as.a greener production pathway. The extraction efficiencies.under different conditions.were inves.igated. The s.udied parameters.include temperatures.in the range of 180 to 270°C, the feed to s.lventfeed-to-s.lvent (in this.cas. water) ratio (1:1, 1:2, 1:3, 1:4 and 1:5) and extraction times.in the range of 5-60 minutes. The res.lts.s.owed that the optimum temperature, feed to s.lventfeed-to-s.lvent ratio, and extraction time were 270°C, 1:3, and 20 minutes. res.ectively. In another experiment, the extracted free fatty acids.were converted into mono-, di-, and triglycerides.through es.erification with glycerol to increas. the value added of the extracted products. The kinetics.of the extraction proces. was.found to be corres.onding to an irrevers.ble cons.cutive unimolecular-type firs. order reaction, cons.s.ing of the extraction s.ep followed by the decompos.tion reaction s.ep. Both reaction rates.of extraction and decompos.tion were es.imated us.ng the reaction rate equations.utilizing the nonlinear regres.ion method. The apparent activation energy was.calculated to be 46.1 kJ·mol-1. This.res.lt indicates.a diffus.on controlled reaction. For more exploration and deep unders.anding of the extraction mechanis., other thermodynamic parameters.were als. calculated and analyzed including,ΔH#, Δs., and ΔG# of the extraction s.ep.

关键词： s.ent Bleaching Earth s.b-Critical Water Technology Kinetics of Extraction Thermodynamic Parameters