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Effects of rotational components of earthquake on seismic response of arch concrete dams

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Earthquake Engineering and Engineering Vibration 2020年第2期19卷 349-362页

作者： Amir Javad Moradloo abbas Naiji Department of Civil Engineering School of EngineeringUniversity of ZanjanZanjan 38791-45371Iran

the present study deals with dynamic analysis of arch concrete dams,taking rotational components of earthquakes into account.A modified methodology was used to evaluate the rotational components of the *** translational components of the earthquake have been used in to obtain the rotational components of the earthquake,based on the intersecting isotropic elastic wave *** rotational components of taft,tabas and San-Fernando earthquakes are evaluated based on the translational components of the earthquakes and considering frequency dependencies of incident angle and wave ***,dynamic analyses of Morrow Point Dam are presented to evaluate the effects of combined translational and rotational components on the seismic response of the *** conditions of reservoirs,including full and empty state,are considered in the ***–structure interaction was completely taken into *** was realized that incorporating rotational components increased the maximum compressive and tensile stresses in both empty and full reservoir *** of maximum tensile stresses is very sensitive to the rotational components of the ***,it can be concluded that the segregated effect of the rocking component on the response of concrete dams is more effective than the sole effect of the torsional component.

关键词： rotational components earthquake arch concrete dam seismic analysis fluid-structure interaction

Numerical study of homogeneous–heterogeneous reactions on stagnation point flow of ferrofluid with non-linear slip condition

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Chinese Journal of Chemical Engineering 2017年第1期25卷 11-17页

作者： Zaheer abbas Mariam Sheikh Department of Mathematics The Islamia University of Bahalwalpur Bahawalpur 63100 Pakistan

this study deals with the stagnation point flow of ferrofluid over a flat plate with non-linear slip boundary condition in the presence of homogeneous-heterogeneous *** kinds of ferroparticles,namely,magnetite(Fe_3O_4),cobalt ferrite(CoFe_2O_4) and manganese zinc ferrite(Mn-ZnFe_2O_4) are taken into account with water and kerosene as conventional base *** developed model of homogeneous-heterogeneous reactions in boundary layer flow with equal and unequal diffusivities for reactant and autocatalysis is *** governing partial differential equations are converted into system of non-linear ordinary differential equations by mean of similarity *** ordinary differential equations are integrated numerically using shooting *** effects of pertinent parameters on velocity and concentration profiles are presented graphically and *** found that in the presence of Fe_3O_4-kerosene and CoFe_2O_4-kerosene,velocity profiles increase for large values of α and β whereas there is a decrement in concentration profiles with increasing values of if and K_***,the comparison between non-magnetic(A1_2O_3) and magnetic Fe_3O_4 nanoparticles is given in tabular form.

关键词： Ferrofluid Stagnation point flow Homogeneous-heterogeneous reactions Generalized slip boundary condition Numerical solution

Modeling relationships between the network distance and travel time dynamics for assessing equity of accessibility to urban parks

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Geo-Spatial Information Science 2021年第3期24卷 509-526页

作者： tahereh Ghaemi Rad abbas Alimohammadi GIS Department Faculty of Geomatics EngineeringCenter of Excellence in Geospatial Information TechnologyK.N.Toosi University of TechnologyTehranIran

Static models of accessibility are usually based on the fixed distance or Average travel time(Att)*** of ignoring the traffic as a dynamic process affecting the accessibility through the change of travel time(tt),these models lead to unperceived temporal *** contrast to the consideration of the temporal Variation of tt(Vtt)in the previous studies,the variation of traffic-related tt and its relations with network distance has not been *** this study,relations between Vtt and network distance to access urban parks in tehran megacity has been *** maps at five times of day are used to produce tt maps of traffic Analysis Zones(tAZs)to their 3-closest *** of the Gini coefficients of accessibility show significant inequities of accessibility at different times of *** between the distance,Att,and tt_(max) are modeled by statistical *** show both tt and ttmax have significant positive relations with distance and traffic and reach their maximum at 6 *** of significant relations between distance,Att,tt_(max),and Vtt provides interesting knowledge for the conversion of temporal measures of equity(tt)to a physical measure of equity(distance).A simple application of these findings for effective management of the spatiotemporal inequities is the definition of critical distances from public *** an example,to decrease the tt_(max) of tAZs to less than 12 min,their maximum distance to the closest parks should be less than 4 *** developed approach can be adopted for the accessibility evaluation of the other public services,particularly the health and education centers.

关键词： Spatiotemporal equity accessibility travel time variability Gini coefficient Lorenz curve urban parks tehran megacity

Management of hepatitis delta: Need for novel therapeutic options

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World Journal of Gastroenterology 2015年第32期21卷 9461-9465页

作者： Zaigham abbas Minaam abbas Department of Hepatogastroenterology Sindh Institute of Urology and Transplantation University of Cambridge CB2 1TP Cambridge

Hepatitis D virus(HDV) is the smallest single stranded RNA virus infecting humans. the hepatitis B surface antigen envelope protein protects the HDV nucleocapsidantigen and provides a means for the virus to enter and exit the hepatocyte. Hepatitis B and D viruses exploit the human sodium taurocholate co-transporting polypeptide(NtCP), a receptor, for their entry into hepatocytes. Prenylation of the large delta antigen is a critical determinant of HDV particle assembly. treatment with pegylated interferon results in sustained virological response six months post-treatment in one fourth of the patients. Nucleos(t)ide analogs(NAs) have been widely tested in hepatitis delta, but they appear to be ineffective. Combination treatment of NAs with interferon also proved to be disappointing so there is a need for novel therapeutic options. the receptor function of NtCP is blocked by Myrcludex B, a synthetic N-acylated pre S1 lipopeptide that competes with infectious virions for receptor binding. there are already some approved drugs available, including irbesartan, ezetimibe, and ritonavir and cyclosporin A, with documented inhibitory effects on NtCP's metabolic function. these drugs may have a role in HDV treatment. Interference with hostmediated post-translational changes of proteins that are crucial to the HDV life cycle, such as prenylation may become an important tool to control HDV infection and prevent replication. Lonafarnib, a prenylation inhibitor significantly reduces virus levels in hepatitis delta patients. Antisense oligodeoxynucleotides which are complementary to genomic HDV ribozyme self-cleavage site and stem?Ⅰ?regions can inhibit genomic HDV ribozyme activity.

关键词： Hepatitis D virus Hepatitis delta Interferon Lonaf

Hybrid millimeter wave heterogeneous networks with spatially correlated user equipment

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Digital Communications and Networks 2024年第4期10卷 904-917页

作者： Arif Ullah Ziaul Haq abbas Ghulam abbas Fazal Muhammad Jae-Mo Kang Department of Computer Engineering College of IT ConvergenceChosun UniversityGwangju61452South Korea Faculty of Electrical Engineering GIK Institute of Engineering Sciences and TechnologyTopi23640Pakistan Faculty of Computer Science and Engineering GIK Institute of Engineering Sciences and TechnologyTopi23640Pakistan Department of Electrical Engineering University of Engineering and TechnologyMardan23200Pakistan Department of Artificial Intelligence Kyungpook National UniversityDaegu41566South Korea

In this paper,we analyze a hybrid Heterogeneous Cellular Network(HCNet)framework by deploying millimeter Wave(mmWave)small cells with coexisting traditional sub-6GHz macro cells to achieve improved coverage and high data *** consider randomly-deployed macro base stations throughout the network whereas mmWave Small Base Stations(SBSs)are deployed in the areas with high User Equipment(UE)*** user centric deployment of mmWave SBSs inevitably incurs correlation between UE and *** a realistic scenario where the UEs are distributed according to Poisson cluster process and directional beamforming with line-of-sight and non-line-of-sight transmissions is adopted for mmWave *** using tools from stochastic geometry,we develop an analytical framework to analyze various performance metrics in the downlink hybrid HCNets under biased received power *** UE clustering we considered thomas cluster process and derive expressions for the association probability,coverage probability,area spectral efficiency,and energy *** also provide Monte Carlo simulation results to validate the accuracy of the derived ***,we analyze the impact of mmWave operating frequency,antenna gain,small cell biasing,and BSs density to get useful engineering insights into the performance of hybrid mmWave *** results show that network performance is significantly improved by deploying millimeter wave SBS instead of microwave BS in hot spots.

关键词： Downlink cell association Heterogeneous cellular networks Integrated sub-6GHz and mmWave networks Millimeter wave communications Poisson cluster process

Emotion Based Signal Enhancement through Multisensory Integration Using Machine Learning

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Computers, Materials & Continua 2022年第6期71卷 5911-5931页

作者： Muhammad Adnan Khan Sagheer abbas Ali Raza Faheem Khan t.Whangbo Pattern Recognition and Machine Learning Lab Department of SoftwareGachon UniversitySeongnamGyeonggido13120Korea Riphah School of Computing&Innovation Faculty of ComputingRiphah International University Lahore CampusLahore54000Pakistan School of Computer Science National College of Business Administration and EconomicsLahore54000Pakistan Department of Computer Engineering Gachon UniversitySeongnam13557Korea

Progress in understanding multisensory integration in human have suggested researchers that the integration may result into the enhancement or depression of incoming *** is evident based on different psychological and behavioral experiments that stimuli coming from different perceptual modalities at the same time or from the same place,the signal having more strength under the influence of emotions effects the response *** research inmultisensory integration has not studied the effect of emotions despite its significance and natural influence in multisensory enhancement or ***,there is a need to integrate the emotional state of the agent with incoming stimuli for signal enhancement or *** this study,two different neural network-based learning algorithms have been employed to learn the impact of emotions on signal enhancement or *** was observed that the performance of a proposed system for multisensory integration increases when emotion features were present during enhancement or depression of multisensory signals.

关键词： Multisensory integration sensory enhancement depression emotions

Intelligent Model for Predicting the Quality of Services Violation

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Computers, Materials & Continua 2022年第5期71卷 3607-3619页

作者： Muhammad Adnan Khan Asma Kanwal Sagheer abbas Faheem Khan t.Whangbo Pattern Recognition and Machine Learning Lab. Department of SoftwareGachon UniversitySeongnamGyeonggido13120Korea Riphah School of Computing&Innovation Faculty of ComputingRiphah International University Lahore CampusLahore54000Pakistan School of Computer Science National College of Business Administration and EconomicsLahore54000Pakistan Department of Computer Engineering Gachon UniversitySeongnam13557Korea

Cloud computing is providing It services to its customer based on Service level agreements(SLAs).It is important for cloud service providers to provide reliable Quality of service(QoS)and to maintain SLAs *** service providers need to predict possible service violations before the emergence of an issue to perform remedial actions for *** users’major concerns;the factors for service reliability are based on response time,accessibility,availability,and *** this paper,we,therefore,experiment with the parallel mutant-Particle swarm optimization(PSO)for the detection and predictions of QoS violations in terms of response time,speed,accessibility,and *** paper also compares Simple-PSO and Parallel *** simulation results,it is observed that the proposed Parallel MutantPSO solution for cloud QoS violation prediction achieves 94%accuracy which is many accurate results and is computationally the fastest technique in comparison of conventional PSO technique.

关键词： Accountability particle swarm optimization mutant particle swarm optimization quality of service service level agreement

First investigation of eclipsing binary KIC 9026766:analysis of light curve and periodic changes

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Research in Astronomy and Astrophysics 2021年第11期21卷 55-61页

作者： Somaye Soomandar abbas Abedi Faculty of Sciences University of BirjandIran

We investigate a short-period W UMa binary KIC 9026766 with an orbital period of 0.2721278 d in the Kepler field of *** applying an automated q-search for the folded light curve and producing a synthetic light curve for this object based on the PHOEBE code,we calculate the fundamental stellar *** also analyze the O-C curve of the primary *** orbital period changes can be attributed to the combination of an upward quadratic function and light-travel time effect(LttE)due to a possible third body with a minimum mass of 0.029 M☉and an orbital period of 972.5866±0.0041 *** relative luminosity of the primary and secondary eclipses(MinⅠ-MinⅡ)is *** periodogram of the residuals of the LttE and MinⅠ-MinⅡshow peaks with the same period of 0.8566 *** background effect of two nearby stars on our target is the possible reason for this *** considering the amplitudes and periods of the remaining signals in the O-C curve of minima,spot motion is possible.

关键词： techniques:photometric stars:individual:KIC 9026766

Efficacy of extract from Ononis spinosa *** ethanol-induced gastric ulcer in rats

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Journal of traditional Chinese Medicine 2021年第2期41卷 270-275页

作者： Manal Ahmad abbas Yasser Ibrahim Kandil Manal Mohammad abbas Faculty of Allied Medical Sciences Al-Ahliyya Amman UniversityAmman 19328Jordan Biochemistry Department Faculty of PharmacyAl-Azhar UniversityCairo 11884Egypt

OBJECtIVE:to investigate the efficacy of the extract from Ononis spinosa L.(***)on ethanol-induced gastric ulcer in ***:Phytochemical constituents of the extract from *** were analyzed using liquid chromatography-mass *** were classified into 4 equal groups;ulcer control received oral vehicle;positive control was administered with 40 mg/kg esomeprazole(standard drug)and 2 groups received 0.5 and 1 g/kg of *** extract,*** ulcer was induced by absolute ethanol(5 mL/kg)orally to all *** of ulcer index,cyclooxygenase-2(COX-2)expression and determination of total glutathione level in gastric mucosa were ***:Oral administration of the extract from *** at doses 0.5 and 1 g/kg lowered the ulcer indices by 80.39%and 98.71%,respectively,compared to 67.89%by esomeprazole(40 mg/kg).Histologically,treatment with the extract decreased necrosis and hemorrhage in mucosa and edema and infiltration by inflammatory cells in *** immunohistochemical technique,it was demonstrated that COX-2 expression increased in mucosa of animals treated with the extract as well as by *** and esomeprazole increased total glutathione level in the stomach compared to *** was the major compound of the extract followed by trifolirhizin,myricitrin,gentisic acid,cycloartenol and ***:the present study demonstrated that the extract from *** was able to protect gastric mucosa from ethanol injury by at least 2 mechanisms,namely the induction of COX-2 and decreasing oxidative stress in the stomach.

关键词： Ononis Stomach ulcer Cyclooxygenase 2 Ethanol Ulcer index

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