Miracle-dz/UniFAR-FTUs huggingface dataset:
MOEAGAC: an energy aware model with genetic algorithm for efficient scheduling in cloud computing

PurposeMajority of the research work either concentrated on the optimization of scheduling length and execution cost or energy optimization mechanism. This research aims to propose the optimization of makespan, energy consumption and data transfer time (DTT) by considering the priority tasks. The research work is concentrated on the multi-objective approach based on the genetic algorithm (GA) and energy aware model to increase the efficiency of the task scheduling.Design/methodology/approachCloud computing is the recent advancement of the distributed and cluster computing. Cloud computing offers different services to the clients based on their requirements, and it works on the environment of virtualization. Cloud environment contains the number of data centers which are distributed geographically. Major challenges faced by the cloud environment are energy consumption of the data centers. Proper scheduling mechanism is needed to allocate the tasks to the virtual machines which help in reducing the makespan. This paper concentrated on the minimizing the consumption of energy as well as makespan value by introducing the hybrid algorithm called as multi-objective energy aware genetic algorithm. This algorithm employs the scheduling mechanism by considering the energy consumption of the CPU in the virtual machines. The energy model is developed for picking the task based on the fitness function. The simulation results show the performance of the multi-objective model with respect to makespan, DTT and energy consumption.FindingsThe energy aware model computes the energy based on the voltage and frequency distribution to the CPUs in the virtual machine. The directed acyclic graph is used to represent the task dependencies. The proposed model recorded 5% less makespan compared against the MODPSO and 0.7% less compared against the HEFT algorithms. The proposed model recorded 125 joules energy consumption for 50 VMs when all are in active state.Originality/valueThis paper proposed the multi-objective model based on bio-inspired approach called as genetic algorithm. The GA is combined with the energy aware model for optimizing the consumption of the energy in cloud computing. The GA used priority model for selecting the initial population and used the roulette wheel selection method for parent selection. The energy model is used as fitness function to the GA for selecting the tasks to perform the scheduling.
Experimental and Numerical Analysis of Axial Skewed Slot Casing Treatments for a Transonic Compressor Stage

An investigation of a single-stage transonic compressor with axial skewed slot casing treatments is presented. The studied compressor stage is characterised by a design mass flow rate of 16 kg/s at a total pressure ratio of 1.5 and a rotor tip speed of 400m/s. The research comprises experimental measurements as well as time-resolved simulations at full and part speed. Total pressure ratio measurements and efficiency speedlines are complemented by traversing downstream of the stator and static pressure measurements at the rotor end wall. The experimental work is supported by unsteady computational fluid dynamics analysis to provide further insight into the ruling flow phenomena. The simulations were carried out fully three-dimensionally in a computational domain with approximately 4.8 million grid points including the cavity mesh. The application of the axial skewed slots led to both, an enhanced operating range and an increased design point efficiency. Rises in total pressure ratio along the entire speed lines were observed.Copyright © 2009 by ASME
Using high permittivity ceramic substrates to design a bandpass filter with open stub

The advantage of using high permittivity ceramic substrates is to miniaturize the sizes of microstrip bandpass filters. The selectivity and stopband rejection of the designed filters can be improved significantly by utilizing open stubs. The designed filter with appropriate open stub can create tunable transmission zero. These factors will reduce the size of the filter and increase its performance. The responses of the filters using Al2O3 (εr = 9.8, tanδ = 0.0001) and 0.96(Mg0.95Zn0.05) TiO3‐0.04SrTiO3 (εr = 20.7, tanδ = 0.00007) ceramic substrates are designed at a center frequency of 2.45 GHz. Finally, the open stub and high permittivity ceramic substrates are applied to the design of a direct‐coupled hairpin filter. The compact size, low‐loss, sharp response, and performance of the filter are presented in this article. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 771–773, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22252
An Investigation of Clock Skew Using a Wirelength-Aware Floorplanning Process in the Pre-Placement Stages of MSV Layouts

Managing the timing constraints has become an important factor in the physical design of multiple supply voltage (MSV) integrated circuits (IC). Clock distribution and module scheduling are some of the conventional methods used to satisfy the timing constraints of a chip. In this paper, we propose a simulated annealing-based MSV floorplanning methodology for the design of ICs within the timing budget. Additionally, we propose a modified SKB tree representation for floorplanning the modules in the design. Our algorithm finds the optimal dimensions and position of the clocked modules in the design to reduce the wirelength and satisfy the timing constraints. The proposed algorithm is implemented in IWLS 2005 benchmark circuits and considers power, wirelength, and timing as the optimization parameters. Simulation results were obtained from the Cadence Innovus digital system taped-out at 45 nm. Our simulation results show that the proposed algorithm satisfies timing constraints through a 30.6% reduction in wirelength.
Cloud Computing Adoption Factors for University Administration

With the current financial crisis and challenging growing needs, many universities are facing problems in providing necessary information technology (IT) support for administrative, educational, and research activities. Cloud Computing (CC) has been developed to meet these demands, and is accepted by numerous organizations as a good alternative to manage their IT provisions. However, it is rarely used at universities. This paper intends to find out the major reasons that have caused many universitiesare non usage of CC. A systematic review was conducted based on recently published works on CC to identify the staff positions as well as their required services. Secondly, a correspondence to these was initiated to find out the models/services/applications that are available in the marketplace. Furthermore, an explorative case study was used to find out the factors that have caused the negligence of CC applications at universities. A semi-structured interview was also conducted with administrators, IT staffers, technicians and clerks at four public and private universities in Malaysia. The collected data were analyzed using an open coding methodology. To support the finding of interview a survey is done and a questionnaire distributed. For analysing the result of questionnaire correlation and regression is done by using SPSS.
The effects of parenting on early adolescents’ noncognitive skills: Evidence from a sample of twins in Germany

Many theories in the social sciences assume that parenting affects child development. Previous research mostly supports the notion that parenting affects the skill development of children in early childhood. There are fewer studies testing whether parenting in early adolescence has such an influence. We estimate the effects of parenting on early adolescents’ noncognitive skills using data from the German Twin Family Panel (TwinLife). Specifically, we look at the effects of parenting styles, parental activities, and extracurricular activities on the academic self-concept, motivation, self-esteem, self-efficacy, and locus of control of 10 to 14 years old children. To control for unobserved heterogeneity and reverse causality, we employ twin fixed-effects models combined with longitudinal information. In addition, MZ twin fixed effects models also control for genetic confounding. Our findings provide no support to the notion that parenting styles, parental activities, and extracurricular activities in early adolescence affect the development of children's noncognitive skills. We conclude that our results, in combination with the majority of evidence from previous research, are in line with a model according to which parenting has larger effects on the skill development of children in early childhood than in early adolescence.
Toxic Effects of Orlistat and Green Tea Extract on Testes of Adult Albino Rats:(Comparative Study)

Background: Obesity is a serious medical health problem in the world. Orlistat drug and green tea herb have an important anti-obesity effect. Aim of the work: This study evaluated the chronic toxic effects of orlistat and green tea extract on testes of 36 adult male albino rats after 45 &90 days with orlistat & green tea extract (GTE). Material and methods: The study was conducted for 90 days on 36 male adult albino rats, divided into three groups; (each one subdivided into 2 equal subgroups). Group I: control group, group II: treated orally with orlistat at a dose of 500 mg/kg/day. Group III: treated orally with GTE at a dose of 700 mg/kg/day. At the start of the experiment, after 45 & 90 days body parameters of all rats were calculated before scarification then, their blood and testicular tissues were subjected to biochemichal and semen analysis, while the remaining testicular tissues were stained for histopathological and immune-histochemical studies. The results: administration of orlistat for 45 days showed mild histopathological changes. after 90 days, there were a significant decrease of testosterone with deterioration of sperm motility &shape abnormalities percentage & sperm count without effect on LH, moderately positive cytoplasmic and nuclear caspase 3 reaction & no changes in periodic acid schiff (PAS) stain. GTE administration showed time dependent decreased testosterone, increased serum LH, deteriorated semen parameters, marked histopathological changes & thickening in basement membrane of seminiferous tubules with PAS. Strong positive cytoplasmic and nuclear caspase 3 reaction. Oxidative stress on testes occurred after 90 days only in GTE group. Conclusion: chronic consumption of GTE induced more weight loss and testicular toxicity compared with orlistat. Recommendation: Abuse of orlistat and GTE should be avoided and restricted by medical prescription to avoid their toxicities.
Poroelastic Attributes: A Real-time Determinant Membrane Nanorheology for Receptor Dependent Endocytosis of Targeted Gold Nanoparticles

BackgroundEfficacy of targeted drug delivery using nanoparticles relies on several factors including the uptake mechanisms such as phagocytosis, macropinocytosis, micropinocytosis and receptor mediated endocytosis. These mechanisms have been studied with respect to the alteration in signaling mechanisms, cellular morphology, and linear nanomechanical properties (NMPs). Commonly employed classical contact mechanics models to address cellular NMPs fail to address mesh like structure consisting of bilayer lipids and proteins of cell membrane. To overcome this technical challenge, we employed poroelastic model which accounts for the biphasic nature of cells including their porous behavior exhibiting both solid like (fluid storage) and liquid like (fluid dissipate) behavior ResultsIn this study, we employed atomic force microscopy to monitor the influence of surface engineering of gold nanoparticles (GNPs) to the alteration of nonlinear NMPs such as drained Poisson’s ratio, effective shear stress, diffusion constant and pore dimensions of cell membranes during their uptake. Herein, we used pancreatic cancer (PDAC) cell lines including Panc1, AsPC-1 and endothelial cell HUVECs to understand the receptor-dependent and -independent endocytosis of two different GNPs derived using plectin-1 targeting peptide (PTP-GNP) and corresponding scrambled peptide (sPEP-GNP). Compared to untreated cells, in case of receptor dependent endocytosis of PTP-GNPs diffusion coefficient altered ~1264-fold and ~1530-fold and pore size altered ~320-fold and ~260-fold in Panc1 and AsPC-1 cells respectively. Whereas for receptor independent mechanisms, we observed modest alteration in diffusion coefficient and pore size, in these cells compared to untreated cells. Effective shear stress corresponding to 7.38±0.15 kPa and 20.49±0.39 kPa in PTP-GNP treatment in Panc1 and AsPC-1, respectively was significantly more than that for sPEP-GNP. These results demonstrate that with temporal recruitment of plectin-1 during receptor mediated endocytosis affects the poroelastic attributes of the membrane. Conclusion﻿This study confirms that nonlinear NMPs of cell membrane are directly associated with the uptake mechanism of nanoparticles and can provide promising insights of the nature of endocytosis mechanism involved for organ specific drug delivery using nanoparticles. Hence, nanomechanical analysis of cell membrane es using this noninvasive, label-free and live-cell analytical tool can therefore be instrumental to evaluate therapeutic benefit of nanoformulations.
Ridge Pattern Representation for Fingerprint Indexing

Fingerprint is a widely used distinguishing biometric characteristic and indexing has an important role in fingerprint identification for large databases. A method to represent ridge pattern is proposed for fingerprint indexing. Ridge pattern within a triangular area is represented by a numerical value, which is suitable to use as an index and very robust to elastic distortion. Experimental results are promising. The proposed representation method can be utilized to further narrow down the search space of databases by the other indexing methods, especially the ones based on minutiae triplets. DOI: http://dx.doi. org/10.5755/j01.eee. 20.7. 8026
Design Considerations and Validation of Trailing Edge Pressure Side Bleed Cooling

One important design measure, which allows achieving a higher efficiency in heavy-duty gas turbines, is reducing the trailing edge thickness of the turbine vanes and blades. A common approach to achieve an efficient cooling of thin trailing edges is pressure side coolant ejection. As the trailing edge is one of the areas of the vanes and blades with the highest heat load, a careful design and validation approach is required. First, the most important design parameters were identified for the design of pressure side bleed. In the present investigation, focus is given to the blockage of the internal features, slot width, overhang length, pressure side lip thickness, effect of rotation and blowing rate. Flat plate test results from a low speed rig are used to choose suitable parameters, which fulfill requirements of a specific design. Previous investigations have shown that contrary to CFD using steady RaNS, unsteady detached eddy simulations can predict film effectiveness of pressure side bleed with good accuracy. Therefore, this approach is used to complete experimental data. The effect of going from low speed rig conditions to engine conditions is modeled with this approach. The final design is investigated in a high-speed cascade rig. Film effectiveness is measured using thermocromic liquid crystals. The cascade results confirm results from the low speed rig. High levels of film effectiveness allow effective cooling of the trailing edge overhang.Copyright © 2009 by ALSTOM
Turbine Broadband Noise Predictions Using Linearised Frequency Domain Navier-Stokes Solvers

A linear frequency domain Navier-Stokes solver is used to retain the influence of turning, thickness, and main geometric parameters on turbine broadband noise. The methodology has been applied to predict the broadband interaction noise produced by a representative low-speed low-pressure turbine section. The differences in the spectra with respect to those yielded by state-of-the-art flat plate based methodologies are up to 6 dB. The differences are caused by multiple effects that semi-analytical methodologies do not account for. The most important are blade thickness and turning, which have been studied separately to quantify their impact on the broadband noise footprint. The influence of changing the turbine operating conditions has been discussed as well. The outlet sound pressure level scales with the third and second power of the inlet and outlet Mach number, respectively, for constant turbulence intensity, within most of the frequency range considered.
The Opposite Roles of White Light in Regulating Germination of Fresh and Aged Seed in Tobacco

Light is one of the important environmental factors for seeds to evaluate whether the natural environment is appropriate for germination and subsequent seedlings emergence. The mechanism of light-mediated germination is mainly concerned with fresh seeds (FS) of model plants but is poorly understood in aged seeds. Here, the effects of light on germination of FS and naturally aged seeds (NAS) in tobacco and their relationship with plant hormones gibberellins (GA) and abscisic acid (ABA) were investigated. The results demonstrated that light promoted and inhibited the germination of FS and NAS, respectively. GA and ABA were involved in the germination control of NAS, as well as in FS. However, light suppressed GA signal and stimulated ABA signal in NAS, whereas it stimulated GA signal and suppressed ABA signal in FS. In addition, light stimulated the GA accumulation and reduction in ABA in FS while inhibiting the increase in GA level in NAS. Together, the present study demonstrates that light has opposite effects on the germination of FS and NAS, which are closely related to the metabolism and/or signaling of plant hormones ABA and GA.
Cross Comparisons of CFD Results of Wind and Dispersion Fields for MUST Experiment: Evaluation Exercises by AIJ

In order to apply Computational Fluid Dynamics (CFD) techniques to estimate pollutant dispersion in urban areas, it is important to assess the performance of numerical models used to estimate these phenomena. Recently, the MUST (Mock Urban Setting Test) has often been adopted as a test case for evaluating numerical models for micro-scale urban meteorology. This paper presents the results of model evaluation exercises carried out using MUST based on the Architectural Institute of Japan (AIJ) experience. The results of model evaluation exercises conducted by AIJ are broadly consistent with the results obtained by the COST group. However, the variety of results by each computation can be minimized by setting standard computational conditions. All computations including both RANS and LES show good agreement with wind experiment data. In general, LES cases show comparable accuracy to RANS in predicting U and W. However, LES shows better agreement than RANS in TKE and concentration.
Opportunistic and other intestinal parasites infections among HIV-positive patients in the era of combination antiretroviral therapy and preventive treatment in Ouagadougou, Burkina Faso

Background: One of the particularities of human immunodeficiency virus (HIV) infection in the tropics is its frequent association with parasitic diseases so frequent in this area. Aim: The aim of this study was to update the epidemiological and clinical profile of intestinal parasites among HIV-positive patients in the era of combination antiretroviral therapy (ART) and preventive treatment in Ouagadougou, Burkina Faso. Materials and Methods: A cross-sectional study was conducted in a single health care system, Yalgado Ouédraogo University hospital, between January 2013 and December 2014. A total of 131 HIV-infected patients were included in the study. Blood and Stool samples were collected for CD4 counts and for intestinal parasitic examination using direct, formol-ether concentration, a concentration method using sodium chloride solution, modified Ziehl-Neelsen and Weber modified trichrome. Odds ratio was calculated to estimate the risk attributable to different factors with confidence intervals. Chi-square (X2) or Fisher’s Exact Test statistical analysis was used to test level of significance at p<0.05 using SPSS 20.0. 0. Results: A prevalence of 73.3% of intestinal parasites was recorded. Most of the parasitic infections were protozoa (97.9%) with few helminths (2.1%). Cryptosporidium spp. (29.2%), was the most commonly found parasite followed by Entamoeba coli (23.9%) and Isospora belli (21.9%). There were 76 cases (78.5%) of single infection and 20 cases (21.5%) of mixed infection. Paradoxically, patients who use preventive treatment were more infected with opportunistic parasites (p= 0.05, OR=2.16, 95% CI= 1.06-4.40). In multivariate analysis, patients with diarrhea (OR=4.04, 95% CI=1.94-8.41), and illiterate (OR=3.70, 95% CI=1.68-8.14) had higher risk of opportunistic parasites. The diarrheic patients were 0.29 times more likely to be infected with opportunistic parasites. Conclusion: Despite the advent of combination ART and preventive treatment of opportunistic infections, intestinal parasites remain very prevalent and associated with diarrhea among patients with HIV in Ouagadougou.
Control of a Gun-Launched MAV for Scene Observation*

Abstract The focus of this paper is on the presentation of a hybrid projectile/MAV concept, namely the Gun-Launched Micro Air Vehicle (GLMAV), with a particular attention on the control strategy used for the hovering flight. The main objective of this concept is the remote observation of hazardous or inaccessible environments, especially for the protection of citizens and vital infrastructures and networks. Prior to its principal use as a standard MAV with two bladed coaxial counter-rotating rotors, the MAV is packaged as a projectile that is launched with the energy delivered by a portable weapon. The first part of the paper gives a description of the GLMAV concept as well as a complete nonlinear mathematical model for hover and near-hover flight. The second part of the paper emphases on nonlinear control strategies for the hover and near-hover flight, particularly backstepping control. The effectiveness of the proposed approaches is illustrated and discussed with some simulations and experimental results.
Transient Stability Improvement of a Power System with Parametric Uncertainties Using a Robust Optimal H2 State Feedback Controller

In recent years, improvement of dynamic behavior of power systems has interested many researchers and to achieve it, various control methods are proposed. In this paper, in order to improve transient stability of power system, a robust optimal H2 state feedback is employed. In order to appropriate formulation of the problem, linear matrix inequality (LMI) theory is used. To achieve the best answer, controller parameters are tuned using particle swarm algorithm. The obtained results of the proposed method are compared to conventional power system stabilizer.