Miracle-dz/UniFAR-FTUs huggingface dataset:
A study of vehicle and measurement NVH variability

A range of nominally identical automotive vehicles have been tested for NVH variability by exciting the engine mount with an impact hammer and measuring the responses at different points on the vehicle. Normalised standard deviations were calculated from the mobility, which fell well within the boundaries of previous comparable measurements. The measurement variability was determined by taking repeat measurements on a single vehicle, which were found to be very repeatable, varying by up to 2.9%. A function that uses the coherence to determine the random error was applied to the data to determine the variability due to the measurement taking process. This was compared with repeat measurements taken on a single vehicle and was shown to agree well with one another. A design of experiments has also been created that determines the effect of each variable such as the temperature and angle of impact on the overall vehicle to vehicle variability.
EVALUATION OF PHYTOCHEMICALS AND FREE RADICAL SCAVENGING BEHAVIOR IN DIFFERENT PARTS OF SYZYGIUM CUMINI

Objective: The present study was aimed at free radical scavenging behaviour in leaves, bark and seeds of Syzygium cumini (L.) Methods: The ability to scavenge free radicals of the different extracts of syzygium cumini was determined by using 1,1-diphenyl2-picrylhydrazyl (DPPH), reducing power, hydroxyl radical scavenging assay, superoxide radical scavenging, Total flavonoid assay and Total phenolic assay. Another aspect of the study was to evaluate the phytochemicals of the different parts of the plant, keeping in view its pharmacological potential. The quantitative determination of compounds viz., phenolics and flavonoids supposed to be antioxidants was made and overall antioxidant activity was measured using standard methods. Results: The results demonstrate that the total phenolic and flavonoid content of syzygium cumini seed is greater than the content found in leaves and bark extracts. A linear correlation between total phenolic content and antioxidant activity has been reported. The results suggested that the phenolic compounds contribute effectively to the antioxidant activity. The highest antioxidant property of bark is noteworthy as compared to leaves and seed in the present study. Conclusion: The study suggests that syzygium cumini have a better source of natural antioxidants, which might be helpful in preventing the progress of oxidative stress.
PRESENT VALUE RELATIONS, GRANGER NONCAUSALITY, AND VAR STABILITY

When in the class of “exact” present value (PV) relations the decision variables do not Granger cause the explanatory variables, and a vector autoregressive (VAR) process is used to derive the cross-equation restrictions, the system embodies explosive roots, which hardly can be reconciled with the typical features observed in most macroeconomic time series. This paper investigates the issue.I thank Paolo Paruolo and two anonymous referees for helpful comments and suggestions on earlier drafts of the paper. I am solely responsible for all remaining errors.
An experimental study of exploitation of materials used for prosthetic temporary restorations

Temporary restorations more often play their role for a definitely longer period of time, than the time necessary for implementation of final prosthetic work. Therefore, they are subjected to adverse effects of chemical, physical and thermal factors in a patient's oral cavity. Since loss of temporary prosthetic work can have negative consequences for an entire treatment process, it is important to identify a potential risk of damaging temporary restorations by factors derived from the diet of patients. The aim of this study was to evaluate the influence of components of the beverages, such as coffee and tea, consumed daily by the patients, on the mechanical properties of materials used in temporary restorations. The experimental design applied, as well as gained results, were justified by appropriate, chosen statistical methods. The conducted research demonstrated the change of mechanical properties of studied materials for their flexural strength, as well as microhardness. The tendency of changes in both result variables, compared with the samples kept in neutral environment – distilled water, indicates the decrease in mechanical strength and microhardness of materials conditioned in coffee and tea. It can be claimed that the components of beverages present in an everyday diet of patients have a considerably adverse effect on the quality of materials used for provisional crowns and bridges.
On quadruply transitive groups

l Introduction. A major unsolved problem in the theory of groups is whether there are any quadruply transitive finite groups other than the alternating and symmetric groups and the four Mathieu groups of degrees 11, 12, 23, and 24, respectively. In this paper are proved two theorems which impose arithmetic restrictions on primes dividing the order of the subgroup fixing four letters of a finite quadruply transitive group, and on the degrees of Sylow subgroups thereof.
PERFORMANCE MANAGEMENT HURDLES IN A PUBLIC HEALTH SECTOR ORGANISATION IN ZIMBABWE

Performance management has become widely recognised and accepted as a basic management tool. It greatly influences the levels of productivity, service delivery and the image of an organisation in general. However the implementation of performance management system and any other system in general can have its own challenges.The main aim of the research was to assess the challenges that the public hospital face in the implementation of their performance management system. The researcher conveniently selected one provincial hospital in Zimbabwe. Purposive and systematic random sampling were used to select participants for the research. A total of 94 respondents participated in the research. Collection of data was done through questionnaires, interviews, and company records. The findings of the study revealed that the organization uses the Results Based Management system as its performance management tool and there are a number challenges being faced in the implementation of the system. The challenges include lack of motivation, lack of knowledge, insufficient human and financial resources, difficulties in identifying performance indicators and that there was no link between performance gaps and training programs. These challenges made it difficult for the hospital to enjoy the benefits, thereby impacting negatively on service delivery. The study recommends further training on how RBM is implemented and that resources be availed for the effective implementation of PM.
Coupled channels approach to photo-meson production on the nucleon

The coupled channels Lagrangian approach of the Giessen model (GiM) for meson production on the nucleon is discussed and applied to a selected set of meson production channels on the nucleon, ranging from πN → πN and γ N → π N , eta-production and associated strangeness production to 2π N channels in the resonance energy region. We present an updated coupled-channel analysis of eta-meson production including all recent photoproduction data on the proton. The dip structure observed in the differential cross sections at c.m. energies W=1.68 GeV is explained by destructive interference between the S 11 (1535) and S 11 (1560) states, not confirming the postulated sharp state. Kaon production on the nucleon is investigated in K Λ and K Σ exit channels. The approach to 2π N production has been significantly improved by using the isobar approximation with σN and π Δ1232 intermediate states. Three-body unitarity is maintained up to interference between the isobar subchannels. We obtain R σ N (1440)=27+4 -9 % and R π Δ (1440)=12+5 -3 % for the for the σ N and π Δ1232 decay branching ratios of N *(1440) respectively. The extracted π N inelasticities and reaction amplitudes are consistent with the results of other groups.
A COMPUTATIONAL METHOD APPLIED TO THE ECONOMIC ANALISYS OF CRIMINAL LAW

This work develops an agent-based model to study the emergent properties due to public enforcement of criminal law. In order to build a model of criminal behavior suitable to the project the economic analysis of crime is used as the basic framework, most specially Becker’s (1968) seminal work, but also Shavell and Polinsky (2000), Shavell (2004), Cohen and Felson (1979) and Clarke (1995). The mainstream has been the economic analysis of law, which considers the agent as a rational decision maker. The model was implemented using NetLogo 3.1. 4, a multiagent software platform (Wilensky, 1999). The simulation program provides a wide range of dynamic options making it easy to perform any kind of test in order to assess the behavior of a given criminal rule in its dynamic operation. Validation and experimental tests were performed. The resulting responses were consistent with the theoretical basis on which the model was based on.
The Evolutionary Game Theoretic Analysis for Emission Reduction and Promotion in Low-Carbon Supply Chains

Aiming at exploring the interplay principles of operations strategies among members of dvertising and emission reduction cost sharing contracts and coordination in low-carbon sulow-carbon supply chain, as well as their impact on system performance, we develop an evolutionary game model to capture emission reduction and low-carbon promotion actions, which are typically conducted by one manufacturer and one retailer in every two-echelon supply chain, respectively. We exploit the evolutionary game model to analyze players’ behavioral patterns of their interacting strategies, whereby we attain the evolutionary stable strategies and their associated existing preconditions under various scenarios. We acquire a number of managerial insights, and particularly find that the evolutionary stable strategies of the channel carbon reduction and promotion are remarkably influenced by incremental profits resulted from causes, such as every player’s unilateral participation in emission reduction. In addition, we investigate a player’s free-rider opportunistic practice in cooperative carbon reduction and joint participation in emission reduction. However, the magnitude of profit increment will heavily influence the result of Evolutionary Stable Strategy (ESS). Finally, the extensive computational studies enable us to verify the effectiveness of preceding models.
Management Skills Desired by Business School Deans and Employers: An Empirical Investigation

The objective of this research was to determine the skills business leaders find most critical in MBA programs to adequately prepare leaders and professionals for organizational success. A second goal was to explore the relationship between the perceptions of business and industry leaders and business school leaders on the rankings of skills deemed most important to prepare students for success in their business careers. The conceptual framework for this study was based on Tanyelâ€™s et al., 1999 study. A survey instrument was administered to 67 respondents from prospective employers of MBA graduates and 15 respondents among business school deans and directors located in the state of Michigan. The two samples consisted of a matched pair design and rank order means for skill rating by the prospective employers and the matched mean rating from the deans/ directors. The major findings found significant differences in the mean rating of the importance of soft skills vs. hard skills among the prospective employers of MBA graduates. Additionally that there is a significant difference in the mean rating of the importance of soft skills vs. hard skills for MBA graduates among the deans and directors at business schools with MBAs. This research offers business school leaders empirical evidence for curriculum redesign for prioritizing skills and designing coursework to incorporate top ranked skills viewed as most important by business and industry leaders.
Identification of the Higgs boson produced in association with top quark pairs in proton-proton collisions: an analysis of the final state containing three leptons with the ATLAS detector

The associated production of the Higgs boson with top quarks ($t\bar{t}H$) allows to constrain the top Yukawa coupling. This coupling is a key parameter of the Standard Model and its direct study through the $t\bar{t}H$ production mode is one of the most challenging in the ATLAS physics program at LHC. An explorative analysis for this process has been performed using 13.2 fb$^{-1}$ of Run-2 data recorded by the ATLAS detector in 2015 and 2016 at a center of mass energy of 13 TeV. The studied final state has three charged light leptons (electrons and muons) and hadronic jets. The primary targets are the Higgs boson decays in vector bosons and tau leptons ($H \rightarrow WW$, $H \rightarrow ZZ$, $H \rightarrow \tau \tau$). This paper describes the physical objects definition, the analysis strategy, the estimation and the modeling of the main backgrounds. Results are shown in terms of the ratio between the measured cross section and the one predicted by the Standard Model.
Direct solution of Navier-Stokes equations by using an upwind local RBF-DQ method

The differential quadrature (DQ) method is able to obtain quite accurate numerical solutions of differential equations with few grid points and less computational effort. However, the traditional DQ method is convenient only for regular regions and lacks upwind mechanism to characterize the convection of the fluid flow. In this paper, an upwind local radial basis function-based DQ (RBF-DQ) method is applied to solve the Navier-Stokes equations, instead of using an iterative algorithm for the primitive variables. The non-linear collocated equations are solved using the Levenberg-Marquardt method. The irregular regions of 2D channel flow with different obstructions situations are considered. Finally, the approach is validated by comparing the results with those obtained using the well-validated Fluent commercial package.
ANTIBACTERIAL ACTIVITY OF CITRUS SINENSIS PEEL AGAINST ENTERIC PATHOGENS

The in vitro antibacterial activity of extract of peel from Citrus sinensis (Sweet orange) was investigated. Two extraction methods were used, hot and cold method. The screening of antibacterial activity was done by agar diffusion technique and Minimum Inhibitory Concentrations (MICs) by agar dilution technique. The extract were tested for antibacterial activity against various diarrhoeal pathogens such as Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Salmonella typhi, Salmonella paratyphi A, Salmonella paratyphi B, Shigella flexneri and Vibrio cholerae. The extract showed various levels of antibacterial activity on different test microorganisms. Future studies are in process to isolate the active principles responsible for the activity.
Methane‐limited methanotrophy in tidal freshwater swamps

We investigated the relationship between CH4 production and oxidation in two tidal freshwater wetland forests in order to determine whether CH4 oxidation efficiency was limited by O2 or CH4. Methane oxidation was measured in situ over a 16‐month period with bi‐monthly applications of the inhibitor CH3F. Oxidation consumed 52 ± 10 and 81 ± 9% of diffusive CH4 emissions on the two sites. Methane oxidation rates were linearly related to gross CH4 emissions on both sites (r2 = 0.96), demonstrating the process was CH4‐limited. This interpretation is consistent with the fact that the apparent activation energies for the potential CH4 production and oxidation differed by <4 kJ mol−1. Apparent activation energies calculated from field emissions data were also similar for the two processes. The high CH4 oxidation efficiency on these sites may be attributed to relatively low rates of methane production, a deep oxidizing zone (5–10 cm), and low cover of understory vegetation capable of CH4 transport. If our results are typical of forested wetlands, CH4 oxidation efficiency in forested wetlands will not change in response to soil warming.
SILVER NANOPARTICLES BIOSYNTHESIS USING MARINE ALGA PADINA PAVONICA (LINN.) AND ITS MICROBICIDAL ACTIVITY

There have been impressive developments in the field of nanotechnology in the recent past, with numerous methodologies formulated to synthesis bionanoparticles using plants. Currently, there is a growing need to develop environmentally benign nanoparticles synthesis processes that do not use toxic chemicals in the synthesis protocol. We report the use of marine algae Padina pavonica (Linn.) thallus broth in the extra cellular synthesis for bio-silver nanoparticles. The biosynthesized silver nanoparticles were characterized with UV-vis Spectroscopy, FTIR, XRD, SEM and TEM. The thallus extract as well as silver-based nanoparticles of marine alga, P. pavonica (Linn.) were tested against two important pathogens of cotton. Fusarium wilts (Fusarium oxysporum f.sp. vasinfectum) and bacterial leaf blight (Xanthomonas campestris pv malvacearum) are responsible for significant yield losses in cotton worldwide. The P. pavonica based silver nanoparticles inhibited the growth of the test pathogens (12.33±0.33 mm and 10.33±0.33 mm for F. oxysporum and X. campestris respectively). This novel highly stable spherical polydispersed bionanoparticle has synthesized using simple environmental friendly green method, can be used for the management of cotton phytopathogens.
Reduction and construction of Poisson quasi-Nijenhuis manifolds with background

We extend the Falceto-Zambon version of Marsden-Ratiu Poisson reduction to Poisson quasi-Nijenhuis structures with background on manifolds. We define gauge transformations of Poisson quasi-Nijenhuis structures with background, study some of their properties and show that they are compatible with reduction procedure. We use gauge transformations to construct Poisson quasi-Nijenhuis structures with background.
Order parameter fluctuations in the holographic superconductor

We investigate the effect of order parameter fluctuations in the holographic superconductor. In particular, following an introduction to the concept of intrinsic dynamics and its implementation within holographic models, we compute the intrinsic spectral functions of the order parameter in both the normal and the superconducting phase, using a fully backreacted bulk geometry. We also present a vector-like large-N version of the Ginzburg–Landau model that accurately describes our long-wavelength results in both phases. Our results indicate that the holographic superconductor describes a relativistic multi-component superfluid in the universal regime of the BEC–BCS crossover.
A Hybrid Hole-filling Algorithm

A polygon mesh, or a 3D mesh, consisting of a collection of vertices, edges, and polygons in three-dimensional space, is the standard way of representing 3D objects. In practice, polygon meshes acquired from the 3D scanning process fail to meet the quality requirements for most practical applications. Mesh defects like holes, duplicate elements, non-manifold elements are introduced during the scanning process, which lowers the quality of the output meshes. In this thesis, we describe a complete mesh-repairing process that fixes all defects within a polygon mesh. This process is divided into two parts: the mesh-cleaning part and the hole-filling part. In the mesh-cleaning part, we describe the ways of repairing different types of mesh defects. In the hole-filling part, we discuss two main hole-filling approaches: the surface-based method and the volumetric. In addition, we present a hybrid algorithm by combining the surface-based approach and the volumetric approach. We compare the meshes created by different hole-filing algorithms and show that the new algorithm is a good alternative to the existing ones.
Combining Independent Component and Grey Relational Analysis for the Real-Time System of Hand Motion Identification Using Bend Sensors and Multichannel Surface EMG

This paper proposes a portable system for hand motion identification (HMI) using the features from data glove with bend sensors and multichannel surface electromyography (SEMG). SEMG could provide the information of muscle activities indirectly for HMI. However it is difficult to discriminate the finger motion like extension of thumb and little finger just using SEMG; the data glove with five bend sensors is designed to detect finger motions in the proposed system. Independent component analysis (ICA) and grey relational analysis (GRA) are used to data reduction and the core of identification, respectively. Six features are extracted from each SEMG channel, and three features are computed from five bend sensors in the data glove. To test the feasibility of the system, this study quantitatively compares the classification accuracies of twenty hand motions collected from 10 subjects. Compared to the performance with a back-propagation neural network and only using GRA method, the proposed method provides equivalent accuracy (>85%) with three training sets and faster processing time (20 ms). The results also demonstrate that ICA can effectively reduce the size of input features with GRA methods and, in turn, reduce the processing time with the low price of reduced identification rates.
3D bioprinting of multicellular skeletal tissues

Current tissue engineering techniques have various drawbacks: they often incorporate uncontrolled and imprecise scaffold geometries, whereas the current conventional cell seeding techniques result mostly in random cell placement rather than uniform cell distribution. For the successful reconstruction of deficient tissue, new material engineering approaches have to be considered to overcome current limitations. An emerging method to produce complex biological products including cells or extracellular matrices in a controlled manner is a process called bioprinting or biofabrication, which effectively uses principles of rapid prototyping combined with cell-loaded biomaterials, typically hydrogels. 3D tissue printing is an approach to manufacture functional tissue layer-by-layer that could be transplanted in vivo after production. This method is especially advantageous for stem cells since a controlled environment can be created to influence cell growth and differentiation. Using printed tissue for biotechnological and pharmacological needs like in vitro drug-testing may lead to a revolution in the pharmaceutical industry since animal models could be partially replaced by biofabricated tissues mimicking human physiology and pathology. This would not only be a major advancement concerning rising ethical issues but would also have a measureable impact on economical aspects in this industry of today, where animal studies are very labor-intensive and therefore costly. In this review, current controlled material and cell positioning techniques are introduced highlighting approaches towards 3D tissue printing.