Miracle-dz/UniFAR-FTUs huggingface dataset:
New Methods for Stress Assessment and Monitoring at the Workplace

The topic of stress is nowadays a very important one, not only in research but on social life in general. People are increasingly aware of this problem and its consequences at several levels: health, social life, work, quality of life, etc. This resulted in a significant increase in the search for devices and applications to measure and manage stress in real-time. Recent technological and scientific evolution fosters this interest with the development of new methods and approaches. In this paper we survey these new methods for stress assessment, focusing especially on those that are suited for the workplace: one of today's major sources of stress. We contrast them with more traditional methods and compare them between themselves, evaluating nine characteristics. Given the diversity of methods that exist nowadays, this work facilitates the stakeholders’ decision towards which one to use, based on how much their organization values aspects such as privacy, accuracy, cost-effectiveness or intrusiveness.
IMPROVED CONTROL STRATEGY OF GRID INTERACTIVE INVERTER SYSTEM WITH LCL FILTER USING ACTIVE AND PASSIVE DAMPING METHODS

The shortage of electric power is the major problem now-a-days. As the conventional energy sources are depleting at a faster rate, there is an urgent need to investigate the alternative energy sources which help to solve the problem. The Renewable Energy Sources (RES) like wind, solar, tidal, bio mass etc., serve this purpose. But these are intermittent in nature and cannot be integrated to the present utility grid directly. Thus, to overcome the above problem power electronic converters are used. These converters should be controlled in such way that the stability of the overall system is maintained. In this project, the control of grid connected inverter with LCL filter is studied. The LCL filter is an effective solution for the interconnection of the RES to the grid but suffers from the problem of resonance. To overcome the above drawback active and passive damping methods are proposed. And also a control strategy to reduce the lower order harmonics is proposed. The proposed control strategy is simulated in MATLAB SIMULINK environment.
A Unique View of AGN-driven Molecular Outflows: The Discovery of a Massive Galaxy Counterpart to a Z = 2.4 High-metallicity Damped Lyα Absorber

We report the discovery of a massive log ( M / M ⊙ ) = 10.74 − 0.16 + 0.18 galaxy at the same redshift as a carbon-monoxide-bearing sub-damped Lyα absorber (sub-DLA) seen in the spectrum of QSO J1439+1117. The galaxy, J1439B, is located 4. ″7 from the QSO sightline, a projected distance of 38 physical kpc at z = 2.4189, and exhibits broad optical emission lines ( σ [ O III ] = 303 ± 12 km s − 1 ) with ratios characteristic of excitation by an active galactic nucleus (AGN). The galaxy has a factor of ∼9 lower star formation than is typical of star-forming galaxies of the same mass and redshift. The nearby sub-DLA is highly enriched, suggesting its galactic counterpart must be massive if it follows the z ∼ 2 mass–metallicity relationship. Metallic absorption within the circumgalactic medium of the sub-DLA and J1439B is spread over a velocity range Δ v > 1000 km s − 1 , suggesting an energetic origin. We explore the possibility that a different galaxy could be responsible for the rare absorber, and conclude that it is unlikely based on imaging, integral-field spectroscopy, and high-z massive galaxy pair statistics. We argue that the gas seen in absorption against the QSO was likely ejected from the galaxy J1439B and therefore provides a unique observational probe of AGN feedback in the distant universe.
Can a haptic force feedback display provide visually impaired people with useful information about texture roughness and 3D form of virtual objects

The aim was to investigate the usefulness of a haptic force feedback device (the PHANToM) for information without visual guidance. Blind-folded sighted observers judged the roughness of real and virtual sandpapers to be closely the same. The 3D forms of virtual objects could be judged accurately and with short exploration times down to a size of 5 mm. It is concluded that the haptic device can present useful information without vision under the conditions of the experiments. The result can be expected to be similar when observers are severely visually impaired, but this will be controlled in a separate experiment.
Identification of grapevine cultivars by DNA analyses: Ptfalls of random amplified polymorphic DNA techniques using 10mer primers

RAPD (random amplified polymorphic DNA) analysis is thought to be the method of choice for the identification of species and cultivars from crude extracts without previous knowledge of DNA sequences in the genome. Several PCR (polymerase chain reactions) are done with various primers until the electrophoretic separation of the reaction products yields suitable patterns which are not too complicated but still show enough variability to differen­
Contiguous polarisation spectra of the Earth from 300 to 850 nm measured by GOME-2 onboard MetOp-A

Abstract. In this paper we present the first contiguous high-resolution spectra of the Earth's polarisation observed by a satellite instrument. The measurements of the Stokes fraction Q/I are performed by the spectrometer GOME-2 onboard the MetOp-A satellite. Polarisation measurements by GOME-2 are performed by onboard polarisation measurement devices (PMDs) and the high-resolution measurements discussed in this paper are taken in the special "PMD RAW" mode of operation. The spectral resolution of these PMD RAW polarisation measurements varies from 3 nm in the ultraviolet (UV) to 35 nm in the near-infrared wavelength range. We first compare measurements of the polarisation from cloud-free scenes with radiative transfer calculations for a number of cases. We find good agreement but also a spectral discrepancy at 800 nm, which we attribute to remaining imperfections in the calibration key data. Secondly, we study the polarisation of scenes with special scattering geometries that normally lead to near-zero Q/I. The GOME-2 polarisation spectra indeed show this behaviour and confirm the existence of the small discrepancy found earlier. Thirdly, we study the Earth polarisation for a variety of scenes. This provides a blueprint of Q/I over land and sea surfaces for various degrees of cloud cover. Fourthly, we compare the spectral dependence of measurements of Q/I in the UV with the generalised distribution function proposed by Schutgens and Stammes (2002) to describe the shape of the UV polarisation spectrum. The GOME-2 data confirm that these functions match the spectral behaviour captured by the GOME-2 PMD RAW mode.
Price Transmission Process in Vertical Markets: an Empirical Analysis of Onion Markets in Tamil Nadu State (India)

The objective of the paper is to examine price transmission process between wholesale and retail markets by adopting Asymmetric Price Transmission (APT) Model. The paper has taken a case of Onion ((Allium cepa L.) wholesale and retail markets in Tamil Nadu state, India. The paper used wholesale and retail prices data from secondary sources. The results show that high margin at retail and wholesale levels of prices points to possibility of distortion in prices which may lead to an asymmetric process in the vertical market. The speed and magnitude of price changes and also the type of asymmetry in the vertical market system has identified the presence of both positive and negative asymmetry. With respect to speed, where the markets have shown negative asymmetry, there is evidence of retail prices responding much faster to decrease in wholesale prices than to increases in wholesale prices. Where a positive asymmetry holds, the result is the opposite. Keywords : Vegetables, Asymmetry, Efficiency, Market Integration and Symmetry
THE EFFECTS OF DDGS INCLUSION ON PELLET QUALITY AND PELLETING PERFORMANCE by ADAM C. FAHRENHOLZ

Three experiments were conducted to evaluate the effects of distillers dried grains with solubles (DDGS) on pellet quality and pellet mill performance in pelleted swine diets. The experiments were completed at the Feed Processing Research Center in the Department of Grain Science at Kansas State University. In all experiments, pellet durability index (PDI), electrical energy consumption, production rate, and bulk density served as the response criteria. In Exp. 1, DDGS were substituted on an equal weight basis for corn, with substitution levels of 10%, 20%, 30%, and 40%. The diet was not adjusted to maintain equal nutrient levels across the treatments. There were no observed significant differences in pellet quality across all levels of DDGS substitution. Both production rate and bulk density were significantly lowered as DDGS level increased. In Exp. 2, diets were formulated to contain the same levels of DDGS, but all ingredients were allowed to vary to retain nutritionally similar diets. In this case energy consumption showed no significant differences among treatments, while pellet quality, throughput, and bulk density were all negatively affected by increasing levels of DDGS. In Exp. 3, the effect of incorporating pelleted and reground DDGS was evaluated. The levels of DDGS evaluated were 10%, 20%, and 30%, using the same diets as Exp. 2. These diets were then pelleted and compared to a control diet with no added DDGS and to diets with unprocessed DDGS added at the same levels. At levels above 10% the diets containing unprocessed DDGS had significantly lower pellet quality than the control, while the diets containing pelleted and reground DDGS showed no significant difference from the control at any level. Significant effects were also observed for production rate, energy consumption, and bulk density. In conclusion, the use of standard DDGS in pelleted feeds is feasible, and although pellet quality may be significantly lower for feeds containing DDGS, the practical value is likely not affected. Furthermore, the data demonstrates some benefits of using DDGS that have been pelleted and reground.
Analysis of Factors that Impact Dividend Payout Ratio on Listed Companies at Jakarta Islamic Index

The purpose of the research is to examine the effect of Return On Assets (ROA), Debt to Equity Ratio (DER), Assets Growth and Dividend Payout Ratio in a Year Before (DPRt-1) towards Dividend Payout Ratio (DPR) on Listed Companies at Jakarta Islamic Index during 2009-2014 period. This research is using annual report that collected from Indonesia Stock Exchange. The method used in this research is panel data regression analysis and the chosen models that used common effect model. The results showed a positive and significant effect of ROA and DPR in a year before to Dividend Payout Ratio. The results also showed a negative and significant effect of Asset Growth to Dividend Payout Ratio. However, the results also showed no significant effect of Debt to Equity Ratio to Dividend Payout Ratio. The most significant variable that effecting Dividend Payout Ratio is Dividend Payout Ratio a Previous Year (DPRt-1).
Calculation and optimization of electromagnetic resonances and local intensity enhancements for plasmon metamaterials with sub-wavelength double-slots

We propose two metamaterials with sub-wavelength double-slots — single-side double-slot metamaterial and double-side double-slot metamaterial. The dependence of the electromagnetic resonances and local intensity enhancements on the structural parameters is studied by the finite-difference time-domain technique and the finite element method. Results show that the central-arm of a double-slot structure strongly influences frequency and local intensities at both highand low-frequency resonances. Very strong field localization can be achieved at the high-frequency resonance and its particular distribution can be well controlled by the width of the central-arm. A double-side double-slot structure can be utilized to separately enhance the high-frequency resonance, while suppressing the low-frequency resonance. The simulation results are discussed in terms of plasmon resonances.
Establishing a robust testing approach for displacement measurement on a rotating horizontal-axis wind turbine

Abstract. Health monitoring by conventional sensors like accelerometers or strain gauges becomes challenging for large rotating structures due to the issues with feasibility, sensing and data transmission. In addition, acceleration measurements have low capability of presenting very small frequencies, which happen very often for large structures (for instance, frequencies between 0.2 and 0.5 Hz in horizontal-axis wind turbines). By contrast, displacement measurement using stereo vision is rapid, non-contacting and distributed over the structure. The sensors are cheaper and more easily applied to many places on the object to be measured. Horizontal-axis wind turbines are one of the most important large rotating structures and need to be measured and monitored in time to prevent damage and failure, and the blade tip position is one of the key parameters to measure in order to prevent the blade hitting the turbine tower. This paper presents a clearly described and easily applicable procedure for measuring the displacement on the components of a rotating horizontal-axis wind turbine with stereophotogrammetry. Paper markers have been applied on the rotor and tower of a scaled-down horizontal-axis wind turbine model in the workshop and the displacement measurement method has been demonstrated by measuring displacement during operation. The method is mainly developed in two parts: (1) camera calibration and (2) tracking algorithm. We introduce an efficient camera calibration method for measurement in large fields of view, which has always been a challenge. This method is easy and practical and offers better accuracy compared with 2-D traditional camera calibration. The tracking algorithm also works successfully and is able to track the points during rotation within the measurement time. Finally, the accuracy analysis has been conducted and has shown better accuracy of the new calibration method compared with 2-D traditional camera calibration.
Effect of the immersion in 1-Metylciclopropene on the physicochemical and physiological properties of yellow pitahaya fruit (Selenicereus megalanthus How) with minimum processing

Yellow pitahaya (Selenicereus megalanthus How), is an exotic fruit with great commercial potential, it has been commercialized without using methods that add value and%or prolong its shelf-life. The effect the application of 200 mg%lt 1-MCP on the respiratory rate and quality properties of vacuum sealed minimally processed yellow pitahaya slices during shelf-life under refrigeration was evaluated. Soluble solids, total titratable acidity, weight loss, total sugars, firmness and color were measured in fruit slices with and without skin. The application of 1-MCP before storage increased the respiratory rate and consequently increased soluble solids and total sugars, and did not show any detrimental on weight loss, total titratable acidity, color changes and firmness. However, the application of 1-MCP reduced loss of vitamin C in yellow pitahaya slices with and without skin during storage time.
Resilience as an imperative in public transport organizations

This article reports on research done on resilience in urban public transport organisations. It presents the guiding principles and the framework of resilience, and the ability of public transport organisations to embed this capability. The emerging discipline of resilience studies is multidimensional and multidisciplinary. The phenomenon has been examined to present a holistic perspective on resilience through an extensive review of the literature, supplemented by empirical research in the European public transport sector. Resilience has been defined as the capacity of an organisation to survive, adapt and grow in the face of turbulent change. The literature research produced several logical conclusions, which were reviewed by using structured interviews with a selected group of specialists in this field. This made it possible to determine guiding principles, to structure the framework and to develop a unique classification of (i) the most fundamental vulnerability factors that make an organisation susceptible to disruptions; and (ii) the capability factors as attributes required for sustained performance or accomplishment. These findings are synthesised and this research establishes the ability of public transport organisations to implement a resilience approach within the boundaries of their level of advancement and prioritised direction statements.
An Improved DCT Based Color Image Watermarking Scheme

In this paper, an improved blind color image watermarking algorithm based on relationship embedding strategy is proposed. Firstly, the original RGB color image is transformed into YCbCr color space. Secondly, the Y channel of YCbCr color space is divided blocks sized 8×8, and then perform two dimensional discrete cosine transform on each block. Finally, embed binary watermarking signal by changing one pair selected middle-frequency sub-band coefficient’s relationship. Experimental results show that the proposed algorithm has very good transparency and robustness against the common image processing. Compared with other similar algorithms, it has better performance.
Nanotechnology; its significance in cancer and photodynamic therapy

In the last decade, developments in nanotechnology have provided a new field in medicine called “Nanomedicine”. Nanomedicine has provided new tools for photodynamic therapy. Quantum dots (QDs) are approximately spherical nanoparticles that have attracted broad attention and have been used in nanomedicine applications. QDs have high molar extinction coefficients and photoluminescence quantum yield, narrow emission spectra, broad absorption, large effective stokes shifts. QDs are more photostable and resistant to metabolic degradation. These photosensitizing properties can be used as photosensitizers for Photodynamic Therapy (PDT). PDT has been recommended for its unique characteristic, such as low side effect and more efficiency. Therefore, nanomedicine leads a promising future for targeted therapy in cancer tumor. Furthermore, QDs have recently been applied in PDT, which will be addressed in this review letter. Also this review letter evaluates key aspects of nano-particulate design and engineering, including the advantage of the nanometer scale size range, biological behavior, and safety profile.
Rydberg Atoms in "Circular" States

Transfert de la population d'un faisceau d'atomes Li de l'etat Rydberg a faible moment cinetique a un etat a |m|=n−1 avec un rendement proche de 100%. Emploi de l'ionisation de champ selective pour detecter cet etat |m|. Interpretation de ce transfert par des passages adiabatiques rapides, ou peut-etre par un processus multiphotonique unique
Control of Multiagent Systems: A Stochastic Pinning Viewpoint

A stochastic pinning approach for multiagent systems is developed, which guarantees such systems being almost surely stable. It is seen that the pinning is closely related to being a Bernoulli variable. It has been proved for the first time that a series of systems can be stabilized by a Brownian noise perturbation in terms of a pinning scheme. A new terminology named “stochastic pinning control” is introduced to describe the given pinning algorithm. Additionally, two general cases that the expectation of the Bernoulli variable with bounded uncertainty or being unknown are studied. Finally, two simulation examples are provided to demonstrate the effectiveness of the proposed methods.
Can Improved Transparency Reduce Supply Chain Risks in Cloud Computing

As organisations move sensitive data to the cloud, their risk profile increases due to the integrated supply chain utilised in cloud computing. The risk is made visible in situations where a cloud offering is federated, with customer data located in multiple datacenters, under the control of multiple providers and sub-providers in different jurisdictions. This problem is further exacerbated by the disposition of cloud providers to keep details of suppliers, data location, architecture, and security of infrastructure confidential from the cloud customers. As such, the shallowness of transparency amongst cloud providers makes it difficult for customers to assess the risk of cloud adoption. In this study, we report on our research into finding out how much customers know about their supply chain. We evaluate the transparency of cloud providers based on their published information and determine the resultant risk of limited visibility of the supply chain. In the course of the research, we identified eight transparency features, which, at a minimum, cloud providers should make available to their current or prospective customers, which we argue had no adverse impact on the competitiveness or profitability of the provider. The study concludes that ultimately, cloud supply chain transparency remains a customer-driven process.
Impact of Trade Liberalization on the Economy: Cross-country Analysis of Selected Asian Economies

There exists a controversy on the direction of the causality and relationship among trade liberalization and economic growth. This controversy motivates us to reinvestigate the determinants of the economic growth in the framework of multivariate model. The present study is an attempt to see the impact of trade liberalization on the economic growth of the selected countries of SAARC and ASEAN over the period of 1990 to 2009. To capture the growth effects of trade liberalization an index is calculated on the bases of principal component analysis. With the help of this index, we test the hypothesis that whether the trade liberalization along with other variables is an important determinant of the economic growth. For this purpose we use the fixed and random effect models. We come up with the conclusion that the trade liberalization may improve the economic growth of the developing countries depending on their policy response to the relative factors. Additionally we also find elasticities of capital and labor exhibiting constant return to scale production function in the presence of meager trade parameters. Keywords: Trade Liberalization Index, Fixed and Random Effect Models, Constant Return to Scale, Hausman Test, Economic Growth
Experimental measurement of granular fabric and its evolution under shearing

X-ray μ computed tomography (CT) made three-dimensional in-situ imaging of natural granular materials possible. Previous work using x-ray μ CT and triaxial compression tests has studied the 3D kinematics of individual grains during shear banding [1]. This works aims to supplement these measurements of kinematics with the measurement of different fabric entities, such as particle or contact orientations. It was found that the individual orientations of the different fabric entities pick up on the forming and the direction of the evolving shear band. The evolution of the anisotropy of the bulk of orientations corresponds to the macroscopic behaviour during the shearing test.