Miracle-dz/UniFAR-FTUs huggingface dataset:
MAGNITUDE CONTROL OF COMMUTATOR ERRORS

Non-uniform filtering of the Navier-Stokes equations expresses itself, next to the turbulent stresses, in additional closure terms known as commutator errors. These terms require explicit subgrid modeling if the non-uniformity of the filter is sufficiently pronounced. We derive expressions for the magnitude of the mean flux, the turbulent stress flux and the commutator error for individual Fourier modes. This gives rise to conditions for the spatial variations in the filter-width and the filter-skewness subject to which the magnitude of the commutator errors can be controlled. These conditions are translated into smoothness requirements of the computational grid, that involve ratios of first -, second - and third order derivatives of the grid mapping.
Credibility analysis for real-time hardware-in-the-loop simulation compared against actual plant

Real-time simulation has become widely accepted in both academic circles and industry. The technology has been applied to many domains ranging from aerospace power systems to utility power grids. The benefits of real-time simulation are generally realized through rapid control prototyping (RCP) or hardware-in-the-loop (HIL) simulation. When HIL simulation is undertaken, the validity of the results may be challenged unless the response has been verified against real world tests. In this paper, we compare the performance of a variable speed induction motor drive against a real-time HIL simulation of the same. Real-time simulations were performed on the Opal-RT OP5600. The motor drive control algorithm was programmed on a TI TMS320F28335 DSP. Field orientated control (FOC) was implemented for motor control. The phase current waveforms for both the real and simulated drive are compared with respect to amplitude and harmonics. In addition, the dynamic response to changes in control parameters is also compared. The results show that the real-time HIL simulation results are consistent with those observed in the actual motor drive.
Exploring Intrusion Detection Schemes and their Comparison in MANETs

The feasibility of mobile ad hoc networks (MANETs) is gaining popularity widely. Due to its fundamental characteristics like dynamic topology, open medium, absence of infrastructure, limited power and limited bandwidth, these networks are more prone to malicious attacks. The prevention methods like encryption and cryptography are not sufficient to make them secure. The reason behind this is that these techniques focus on how to protect the data but do not take any action against the intruder. Therefore some detection mechanism must be deployed to facilitate the identification and isolation of attacks before an attacker breaches the system. This paper presents the existing architectures for intrusion detection systems (IDS) along with intrusion detection techniques in MANETs and their comparison.
Determination of erythrocyte antioxidant capacity in haemodialysis patients using electron paramagnetic resonance.

BACKGROUND The increased oxidative stress of uraemia is caused both by an increased generation of oxygen-free radicals and a decrease of antioxidative forces. There are, however, conflicting data concerning disturbances of the radical-scavenging power of red blood cells (RBCs) in uraemic patients. METHODS The antioxidant capacities of the RBCs of 10 haemodialysis (HD) patients and 10 controls were examined after treatment with 0.324 mM tert-butylhydroperoxide (t-BOOH) in phosphate-buffered saline at 37 degrees C using electron paramagnetic resonance (EPR) with 5,5-dimethylpyrroline-N-oxide (DMPO) as a spin trap and glutathione (GSH) regeneration as an indicator of hexose monophosphate shunt (HMPS) activity. EPR investigations were also done after pre-incubation with N-ethylmaleimide (NEM) to inhibit the GSH system. Furthermore, we determined the RBC redox state in 15 HD patients and 15 controls. RESULTS There was no difference between HD patients and controls in the elimination of t-BOOH-generated free radicals in the RBCs. A more than 20-fold increase in radical concentration was observed after GSH trapping with NEM. In this case, we found a delayed decrease of the relative radical concentration in HD patients compared with controls with a significant difference after 7 min (2.2+/-0.26 vs 1.60+/-0.21; P=0.005) and after 10 min (1.82+/-0.41 vs 0.83+/-0.44; P=0.001). GSH regeneration via HMPS did not differ between the RBCs of HD patients (99.5+/-13.5 nmol/min x ml RBC) and those of the controls (94.2+/-16.9 nmol/min x ml RBC). There were no differences in the RBC concentrations of GSH, GSSG, NADP, NADPH, and in the GSH/GSSG and NADP/NADPH ratios between HD patients and controls. CONCLUSIONS These data suggest a strong antioxidant potential in the GSH system of erythrocytes without any evidence of a disturbance in HD patients. The HMPS pathway also appears not to be impaired in the RBCs of HD patients. However, the slower radical elimination in the RBCs of HD patients after inhibition of GSH-depending radical scavengers as compared with controls indicates a defect in the antioxidant forces outside the GSH system, and could be one reason for the reduced lifespan of RBCs in HD patients.
Anthropophilic biting behaviour of Anopheles (Kerteszia) neivai Howard, Dyar & Knab associated with Fishermen’s activities in a malaria-endemic area in the Colombian Pacific

On the southwest Pacific Coast of Colombia, a field study was initiated to determine the human-vector association between Anopheles (Kerteszia) neivai and fishermen, including their nearby houses. Mosquitoes were collected over 24-h periods from mangrove swamps, marshlands and fishing vessels in three locations, as well as in and around the houses of fishermen. A total of 6,382 mosquitoes were collected. An. neivai was most abundant in mangroves and fishing canoes (90.8%), while Anopheles albimanus was found indoors (82%) and outdoors (73%). One An. neivai and one An. albimanus collected during fishing activities in canoes were positive for Plasmodium vivax , whereas one female An. neivai collected in a mangrove was positive for P. vivax . In the mangroves and fishing canoes, An. neivai demonstrated biting activity throughout the day, peaking between 06:00 pm-07:00 pm and there were two minor peaks at dusk and dawn. These peaks coincided with fishing activities in the marshlands and mangroves, a situation that places the fishermen at risk of contracting malaria when they are performing their daily activities. It is recommended that protective measures be implemented to reduce the risk that fishermen will contract malaria.
Synthetic Dual-Doppler Analysis of a Winter Mesoscale Vortex

Abstract This article presents a detailed examination of the kinematic structure and evolution of the 5 December 1997 winter mesoscale vortex in the vicinity of Lake Michigan using the synthetic dual-Doppler (SDD) technique. When such a mesoscale event propagates a distance large enough that the viewing angle from a single-Doppler radar changes by about 30° and the circulation is sufficiently steady during this time period, then the SDD method can reveal reliable details about the circulation. One such detail of the observed vortex was a pattern of convergence and divergence associated with radial bands, where heavier snowfall was located. Another was the steadiness and vertical coherence of the derived vorticity and convergence patterns within the cyclonic circulation. On 5 December 1997, the observed reflectivity field remained remarkably steady for nearly 2.5 h as the vortex moved southeastward allowing for the application of the SDD technique. The reflectivity field exhibited a pronounced asymmetric c.
Coexistence of pico- and femto-cellular LTE-unlicensed with legacy indoor Wi-Fi deployments

Due to the high expected increase in mobile data traffic and the scarcity of licensed spectrum for cellular networks, 3GPP has started preliminary work for standardizing LTE operation in the 5 GHz unlicensed band (LTE-U). However, LTE-U would interfere with other legacy technologies operating in the unlicensed band, the most important being contention-based Wi-Fi, which would be blocked by conventional LTE, which is designed for dedicated licensed spectrum. Consequently, some coexistence-enabling mechanisms have been proposed for LTE-U, but their evaluation is still at an early stage. In this paper we present a detailed system-level study on the downlink throughput performance of legacy indoor IEEE 802.11n and LTE-U deployments coexisting in the 5 GHz band. We consider several LTE-U coexistence mechanisms (i.e. listen-before-talk and interference-aware channel selection) in indoor LTE-U femtocell and outdoor LTE-U picocell scenarios with a realistic range of network densities and real outdoor picocell locations. We also study coexistence of LTE-U networks deployed by multiple operators, and evaluate the impact of different LTE-U transmit power levels. Our results show that in general both Wi-Fi and LTE-U benefit from the large number of available channels and isolation provided by building shielding at 5 GHz. Additionally, in typical indoor coexistence scenarios, interference-aware channel selection is more efficient for both Wi-Fi and LTE-U than listen-before-talk mechanisms. For outdoor LTE-U picocells and indoor Wi-Fi deployments, the two networks are isolated from each other, but listen-before-talk can increase LTE-U user throughput when multiple outdoor LTE-U networks deployed by different cellular operators coexist.
Plasmids Carried by Antibiotic-Resistant Marine Bacteria

Antibiotic-resistant bacteria were isolated from seawater samples collected in the Atlantic Ocean off the southeastern coast of the United States. Large numbers of antibiotic-resistant bacterial strains were found to be present in harbor and inshore waters; however, the percentage of resistant strains was higher for several seawater samples collected offshore than for those collected near shore. Bacteria resistant to tetracycline, chloramphenicol, and streptomycin were found in nearly all samples collected, including samples from 200 miles (about 522 km) offshore and at depths to 8,200 m. Sediment samples, in general, were found to contain smaller populations of resistant strains as compared with the seawater samples examined. Antibiotic-resistant bacteria exhibiting phenetic characteristics common to autochthonous marine bacterial species were examined in detail, and several of the isolates exhibited unstable antibiotic resistance, which was transferable to recipient Escherichia coli cells. Deoxyribonucleic acid preparations from 10 strains examined by ethidium bromide-cesium chloride density sedimentation revealed that 6 of the strains contained covalently closed circular plasmid deoxyribonucleic acid.
High speed low power Soft-Output Viterbi decoder

A high speed low power Soft-Output Viterbi decoder designed for the convolutional codes used in the ECMA-368 UWB standard is presented in this thesis. A novel hybrid SMU architecture using the trace-forward method is proposed. It can reduce the overall required memory and achieve high throughput without consuming much power. This thesis also proposes a way to concatenate the SOVA decoder and Reed-Solomon (RS) decoder, which can achieve about 0.35dB decoding performance gain compared to the conventional Viterbi-RS decoder.
Effects of Resistance Training and Aerobic Exercise on Insulin Sensitivity in Overweight Korean Adolescents: A Controlled Randomized Trial

Background Data on the impact of resistance training on insulin resistance in overweight or obese children are inconclusive. Methods Thirty overweight South Korean adolescents (mean age of 13.10 years) were divided by sex, and then randomly assigned to one of three treatment groups, which were the diet only (DO), diet with aerobic exercise (AE), or diet with resistance training (RT) group. Physiologic and metabolic parameters were assessed at baseline and after 12 weeks of exercise training and diet modification. Results Both exercise groups (aerobic and resistance) showed significant improvements in their insulin area under the curve and insulin sensitivity index values when compared to their baseline values while the DO group showed no significant changes in these variables. Age-, sex-, and body mass index (BMI)-adjusted intergroup comparison analyses showed a marked reduction in BMI and a significant reduction in muscle mass in the AE group when compared to the RT group and the DO group, respectively. Conclusion A 12-week exercise training program of either resistance or aerobic activity improved insulin sensitivity in overweight adolescents, although it failed to show superiority over a DO program. Aerobic exercise decreased both body weight and BMI, and it was noted that this group also had a significant reduction in muscle mass when compared to the DO group.
Crafting a Knowledge Strategy

Telephone: (Australia) +61 3 8300 0747 email: <shawn@anecdote.com. au> Abstract Knowledge strategies are often inflexible and unable to cope with the emergent properties that characterise the complex and dynamic environments of the ‘knowledge age’. Knowledge strategy should encompass (i) actions that are intended to result in anticipated business outcomes; and (ii) actions that emerge as a result of the many complex activities that are undertaken within an organisation. This paper describes an approach to designing a knowledge strategy that encompasses both of the above elements. The proposed approach has three parts that work in parallel: (i) a knowledge framework; (ii) a knowledge environment; and (iii) knowledge initiatives. The paper provides an overview of the proposed knowledge strategy design, describes each part separately, and combines them to provide an integrated approach that allows the theory, techniques, and tools of knowledge management to be used effectively in improving business outcomes. Introduction Most knowledge-management practitioners share a common view on the theory and practice of ‘strategy’. Strategy, it is generally agreed, is a plan to be executed in the future to achieve specific objectives. However, this view of strategy is limited and potentially dangerous because it obscures the rich and paradoxical nature of the wider concept of strategy, and it can result in significant opportunities and danger signs being overlooked. Mintzberg, Ahlstrand and Lampel (1998, p.9) have encapsulated the paradox of strategy with the following observation: Ask someone to define strategy and you will likely be told that strategy is a plan, or something equivalent—a direction, a guide or course of action into the future, a path to get from here to there. Then ask that person to describe the strategy that his or her own organization or that of a competitor actually pursued over the past five years— not what they intended to do but what they really did. You will find that most people are perfectly happy to answer that question, oblivious to the fact that doing so differs from their own definition of the term. Strategy, therefore, should be viewed as a combination of: (i) the actions that are intended to result in anticipated business outcomes; and (ii) the actions that emerge as a result of the many complex activities that are undertaken within an organisation. This paper
Efficient Hierarchical Motion Estimation Algorithm and Its VLSI Architecture

This paper addresses the development and hardware implementation of an efficient hierarchical motion estimation algorithm, HMEA, using multiresolution frames to reduce the computational complexity. Excellent estimation performance is ensured using an averaging filter to downsample the original image. At the smallest resolution, the least two motion vector candidates are selected using a full-search block matching algorithm. At the middle level, these two candidate motion vectors are employed as the center points for small range local searches. Then, at the original resolution, the final motion vector is obtained by performing a local search around the single candidate from the middle level. HMEA exhibits regular data flow and is suitable for hardware implementation. An efficient VLSI architecture that includes an averaging filter to downsample the image and two 2-D semisystolic processing element arrays to determine the sum of absolute difference in pipeline is also presented. Simulation results indicate that HMEA is more area-efficient and faster than many full-search and multiresolution architectures while maintaining high video quality. This architecture with 59K gates and 1393 bytes of RAM is implemented for a search range of [ -16.0, +15.5].
Robust and adaptive whole-body controller for humanoids with multiple tasks under uncertain disturbances

This paper focuses on the development of a dynamic model-free whole-body controller for a humanoid robot with high kinematic redundancy. The proposed controller is based on force-level operational-space control framework, which computes joint torques for the required forces of prioritized multiple tasks. While typical approaches based on this framework require to obtain an accurate robot dynamics model, which has been generally recognized as a major hurdle to overcome for implementation in real humanoid robots, the proposed controller incorporates adaptive sliding-mode and online dynamics estimation schemes; thus, it can be easily realized on a humanoid without identifying complex robot dynamic parameters. As a result, the gains of the proposed controller are adaptively adjusted to assure the control accuracy, when the humanoid robot changes its posture and undergoes uncertain disturbances. Experiments with a 23-DoFs humanoid under uncertain disturbances verify that the proposed controller can robustly perform multiple tasks with high accuracy.
Intentions, Implicatures and Processing of Complex Questions

In this paper we introduce two methods for deriving the intentional structure of complex questions. Techniques that enable the derivation of implied information are also presented. We show that both the intentional structure and the implicatures enabled by it are essential components of Q/A systems capable of successfully processing complex questions. The results of our evaluation support the claim that there are multiple interactions between the process of answer finding and the coercion of intentions and implicatures.
The Global Mesoscale Eddy Available Potential Energy Field in Models and Observations

Global maps of the mesoscale Eddy Available Potential Energy (EAPE) field at a depth of 500m are created using potential density anomalies in a high-resolution 112.5° global ocean model. Maps made from both a free-running simulation and a data-assimilative reanalysis of the HYbrid Coordinate Ocean Model (HYCOM) are compared with maps made by other researchers from density anomalies in Argo profiles. The HYCOM and Argo maps display similar features, especially in the dominance of western boundary currents. The reanalysis maps match the Argo maps more closely, demonstrating the added value of data assimilation. Global averages of the simulation, reanalysis, and Argo EAPE all agree to within about 10%. The model and Argo EAPE fields are compared to EAPE computed from temperature anomalies in a dataset of “Moored Historical Observations” (MHO) in conjunction with buoyancy frequencies computed from a global climatology. The MHO dataset allows for an estimate of the EAPE in high-frequency motions that is aliased into the Argo EAPE values. At MHO locations, 15-32% of the EAPE in the Argo estimates is due to aliased motions having periods of 10 days or less. Spatial averages of EAPE in HYCOM, Argo, and MHO data, agree to within 50% at MHO locations, with both model estimates lying within error bars observations. Analysis of the EAPE field in an idealized model, in conjunction with published theory, suggests that much of the scatter seen in comparisons of different EAPE estimates is to be expected given the chaotic, unpredictable nature of mesoscale eddies.
Similarity of event sequences

Sequences of events are an important form of data that occurs in many application domains, such as telecommunications, biostatistics, user interface design, etc. We present a simple model for measuring the similarity of event sequences, and show that the resulting measure of distance can be efficiently computed using a form of dynamic programming.
sychometric properties of the Drive for Muscularity Scale in Malay en

The Drive for Muscularity Scale (DMS) is a widely used measure in studies of men’s body image, but few studies have examined its psychometric properties outside English-speaking samples. Here, we assessed the factor structure of a Malay translation of the DMS. A community sample of 159 Malay men from Kuala Lumpur, Malaysia, completed the DMS, along with measures of self-esteem, body appreciation, and muscle discrepancy. Exploratory factor analysis led to the extraction of two factors, differentiating attitudes
Adaptation multi-niveaux : l'infrastructure au service des applications

De plus en plus d'applications sont construites a base de services et executees dans des environnements large echelle, dynamiques et distribues. La notion de "cloud" est souvent utilisee pour parler de ces environnements. Le paradigme de cloud computing correspond a un ensemble de niveaux independants ayant chacun leurs propres objectifs. Ces objectifs sont aussi bien de garantir la qualite de service fournie aux utilisateurs que de gerer les ressources disponibles. Mais la qualite de service tout comme les ressources disponibles peuvent evoluer au fil de l'execution et les differents niveaux doivent s'adapter a ces evolutions. Du fait de leur independance, ces differents niveaux s'adaptent independamment les uns des autres. Pourtant si l'on considere un ensemble d'adaptations s'effectuant sur des niveaux differents, il est possible que ces adaptations soient contradictoires ou redondantes entre elles, ne produisant pas au final l'effet escompte ou bien l'atteignant de maniere non performante. Nous presentons dans cet article ce que nous appelons adaptation multi-niveaux ainsi que l'interet qu'elle peut avoir. Nous illustrons cet interet sur le cas de la migration de service permettant d'adapter une application en utilisant l'infrastructure sous-jacente et ses capacites.
AnswerFinder in TREC 2003

In this our (cid:2)rst participation in TREC we have focused on the passage task of the question answering track. The main aim of our participation was to test the impact of various types of linguistic information in a simple question answering system. In particular, we have tested various combinations of word overlap, grammatical relations overlap, and overlap of minimal logical forms in the (cid:2)nal scoring module of the system. The results indicate a small increase of accuracy with respect to a baseline system based on word overlap. Overall, given the short time available for developing the system, the results are satisfactory and equal or surpass the median.