Miracle-dz/UniFAR-FTUs huggingface dataset:
Boosting Edge Intelligence With Collaborative Cross-Edge Analytics

Edge intelligence is emerging as a new interdiscipline to accelerate the convergence of artificial intelligence (AI) and Internet of Things (IoT). By applying edge computing, edge intelligence enables resource-limited IoT devices to offload computation-intensive AI applications to the network edge for execution. While existing efforts have focused on optimizing the model training and inference phases of edge intelligence, the initial phase of edge intelligence—collaborative cross-edge analytics that preprocess the unlabeled raw data dispersed at multiple edge sites to obtain labeled and trainable data samples—has greatly overlooked. To bridge this gap, in this article, we study how to jointly optimize the input data and task placement, with the goal of speeding up collaborative cross-edge analytics at low network traffic cost. This problem is by no means trivial since it is nonconvex and involving future uncertainty of the query characteristics. To accommodate these dual challenges, we blend the advantages of the convex relaxation method and a two-stage optimization. Specifically, based on a prediction of the query characteristics, the input data placement is first determined when it is generated, and then when the query job arrives, the actual value of the query characteristics is used to optimize the task placement. The problem becomes more complicated when we have multiple queries simultaneously. In response, we develop an efficient flow scheduling for the intermediate data transfers of competing queries by extending the classic shortest remaining processing time (SRPT) policy. Extensive trace-driven simulations verify the efficacy of our proposed solution.
A Low-Profile Planar Surface-Wave Antenna With Metasurface for Endfire Radiation

A low-profile planar surface-wave antenna with metasurface is proposed for endfire radiation. The antenna has the advantages of low profile, high gain, and wide bandwidth of endfire radiation. The surface-wave structure is based on a substrate integrated waveguide (SIW) structure, which can be considered as a laterally-bounded conductor-backed coplanar waveguide (CPW) with a metasurface that is made of periodic staggered patches. The propagation properties are analyzed with a magnetic-field integral equation method. With the analysis, it is found that the structure supports an improper leaky mode and a proper mode that behaves as a surface-wave mode in lower frequency range. With the surface-wave mode, an endfire surface-wave antenna is designed. A prototype of the antenna is fabricated and measured. The measurement results show that the antenna provides a 3 dB gain bandwidth of 32%, with the gain varying from 12.3 to 15.3 dBi in the operation band from 9.6 o 13.6 GHz at a fixed direction close to endfire.
Phenolic Content, Flavonoid Content and Antioxidant Potential of Whole Plant Extract of Ophiorrhiza pectinata Arn.

The present study was designed to evaluate the antioxidant potential of the methanolic extract of Ophiorrhiza pectinata using various in vitro methods and the quantitative estimation of phenols and flavonoids in the extract. The total phenolic content of the extract was estimated using Folin-ciocalteu assay and the result was obtained as 41.59 ± 0.51 mg gallic acid equivalent per gram dry weight (GAE/g DW) of the extract. Estimation of the flavonoid content was done by aluminium chloride calorimetric method and the result was 21.01 ± 0.73 mg quercetin equivalent per gram dry weight (QE/g DW) of the extract. Antioxidant potential of the extract was screened against free radicals like 1,1-diphenyl–2-picryl hydrazyl (DPPH), hydroxyl, nitric oxide and superoxide. The results of the assays were calculated as the percentage inhibition of these radicals by the extract. In DPPH radical scavenging assay the percentage inhibition was obtained as 64.06 ± 1.12%, in hydroxyl radical scavenging assay the percentage inhibition was 66.67 ± 1.005%, in nitric oxide radical scavenging assay the percentage inhibition was 67.37 ± 1.006% and in superoxide radical scavenging assay the result was obtained as 74.29 ± 1.06%. In all the scavenging assays, the extract showed a dose dependent increase in free radical scavenging activity. The percentage inhibition of the radicals also increased with increasing concentration of the plant extract. The results suggested that the antioxidant efficacy of the plant extract might be due to the presence of phenol and flavonoid compounds that are known for their antioxidant properties. The study also justifies the use of the plant in folklore medicine for the treatment of various ailments. In conclusion, the plant extract can be a potent source of natural antioxidant that can be explored for research and therapeutic applications.
Synchronous Push–Pull Class E Rectifiers With Load-Independent Operation for Megahertz Wireless Power Transfer

This article presents the analytical modeling of synchronous class E rectifiers with the load-independent operation, which achieves zero-phase-angle input impedance, soft-switching over the entire load range with a constant voltage gain. The optimal design of the synchronous class E rectifier is proposed to realize both zero-voltage-switching turn-<sc>on</sc> and zero-current-switching turn-<sc>off</sc> at the expected output power. An <inline-formula><tex-math notation="LaTeX">$ LCC$</tex-math></inline-formula>-<inline-formula><tex-math notation="LaTeX">$S$</tex-math></inline-formula> compensated MHz-WPT topology, which comprises the push–pull class E inverter and rectifier with the load-independent operation, is proposed to achieve the fully soft-switching and a nearly constant voltage gain over the entire load range. The efficiency improvement of the compensation network is also investigated to provide a design methodology for the proposed topology. A <inline-formula><tex-math notation="LaTeX">$ 6.78$</tex-math></inline-formula>-MHz WPT prototype, along with an alternative phase detector using an auxiliary coil to realize phase detection, is built to validate the analytical model and the proposed methodology. The system efficiency reaches <inline-formula><tex-math notation="LaTeX">$ \text{86.7}\%$</tex-math></inline-formula> at <inline-formula><tex-math notation="LaTeX">$ 214$</tex-math></inline-formula>-W output. The synchronous push–pull class E rectifier maintains soft-switching over the load range, and the rectification efficiency reaches <inline-formula><tex-math notation="LaTeX">$ 94.6\%$</tex-math></inline-formula>.
The Prosocial Behavior of College Students at the City Park in Makassar

This research aims to look at the description of the prosocial behavior of students at the City Park in Makassar. This type of research is quantitative with descriptive methods. Subjects in this study were 1137 respondents obtained using a purposive sampling technique. Data from this study were obtained using a prosocial behavior scale, which contained 30 items. Data obtained from the subject's answers were analyzed by descriptive analysis test with crosstabulation using the GNU PSPP Statistical Analysis Software version 1.2. 0. The results of this study showed that prosocial behavior is at a moderate level.
Thermally stable and high molecular weight poly(propylene carbonate)s from carbon dioxide and propylene oxide

The copolymerization of carbon dioxide and propylene oxide was carried out to afford alternating polypropylene carbonate) in high yield. Thermal stable and high molecular weight copolymers were successfully obtained by optimizing the reaction conditions. The catalyst used was zinc glutarate supported on a perfluorinated compound containing 7-12 carbon atoms. Copolymerization parameters, such as the ratio of propylene oxide to catalyst, stirring strength and purity of propylene oxide, were studied. The alternating copolymer with a molecular weight of 56100 in a very high yield (126g polymer per gram of catalyst) was achieved, which is the highest yield ever reported. The thermal and mechanical properties of the alternating PPC copolymer were examined by the means of modulated differential scanning calorimetry (MDSC), thermogravimetric analysis (TGA) and tensile test. MDSC and TGA results showed that the alternating PPC copolymer exhibits an extremely high glass transition temperature (maximum 46.46°C) and decomposition temperature (255.8 °C) when compared to those values reported in literature. Tensile test revealed that thin film of alternating PPC copolymer exhibits superior mechanical strength.
Crystallization of Anatase from Amorphous Titania Using the Hydrothermal Technique: Effects of Starting Material and Temperature

The crystallization of anatase from amorphous titania has been controlled using the hydrothermal technique. Crystallite size and surface area can be controlled by careful alterations of the hydrothermal conditions. The catalytic effect of the water on crystallization has been demonstrated, and the crystallization mechanism has been shown to change from a solid-state type to dissolution precipitation as the temperature is increased. The influence of the amorphous precursor preparation route has been examined in order to evaluate the effect of contaminant ions on the crystallization process. It has been shown that the chloride ion accelerates the nucleation of the anatase, even under dry conditions. The effects of acidic and basic solutions have been studied. Acidic conditions result in the formation of anatase, brookite, and rutile, whereas basic conditions accelerate the production of anatase. The mechanisms for the hydrothermal crystallization of anatase and rutile are discussed.
A Novel Approach to Augment the Opto-Electronic Properties of Stannic Oxide (SnO2) Thin Films by Vanadium Doping

A R T I C L E I N F O A B S T R A C T Article history: Received: 28 August, 2020 Accepted: 23 October, 2020 Online: 08 November, 2020 The Tin Oxide: Vanadium (SnO2: V) thin films have been deposited on glass substrates with various Vanadium concentration at a substrate temperature;500C using microprocessorcontrolled spray pyrolysis technique. The structural, compositional, morphological and optical analyses of the samples are characterized by XRD, EDAX, SEM and UV-Visible spectroscopy. The XRD analysis shows tetragonal rutile structure formation in lattice configuration of virgin and Vanadium doped SnO2 thin films. The uniform crystallinity is appeared on the surface of crystal and it is proved by extreme diffraction peak for 3at% Vanadium doped SnO2 thin films. The optical transmittance increases from virgin to 3at% with increase in doping concentration. The transmittance for 4at% is minimum compared with 3at% of vanadium doping. The FTIR analysis illustrates the bond formation between Sn-O and V-O respectively. This also validates the strong force constant for the consistent crystal structure.
Use of Higher Plants and Bed Filter Materials for Domestic Wastewater Treatment in Relation to Resource Recycling

Abstract A bench scale experiment was conducted to compare the effectiveness of three kinds of bed filters (zeolite, zeolite + shell fossils, charcoal chips) and five plant species (Chinese water spinach (Ipomea aquatica Forskal), rice (Oryza sativa L. cv. Takanari), zinnia (Zinnia elegance L.), watercress (Nasturtium officinale R. Br.), stock (Matthiona incana R. Br.)) for use as plant-bed filter systems in order to develop low cost and energy-saving devices for wastewater treatment combined with resource recycling and amenity functions. Pots (0.05 m2) filled with bed filter materials were prepared as experimental systems. The addition of higher plants to the bed filters enhanced the nitrogen and phosphorus removal from wastewater as plant species considerably affected the P and N removal efficiency. In the summer-autumn season (June-December), Chinese water spinach and rice were more effective than zinnia. In the winter-spring season (January-May), watercress was more effective than stock. Although the .
Textural characterisation of lasagna made from organic whole wheat

Summary In the last years, trade of organic foods has risen significantly. Relevant quality studies for organic foods are generally related to environmental and health attributes/considerations. However, very few studies that analyse the traditional characteristics of food quality have been carried out. The importance of these studies is that they enable us to compare them with conventional food. Therefore, the objective of this article is to study the quality (texture and sensory properties) of lasagna prepared only with organic ingredients, without additives and through standard procedures of manufacture. Organic lasagna characteristics are compared with conventional white and whole wheat ones. The analysis of variance indicates the existence of significant differences in all the texture parameters, except for the cohesiveness. These differences show a possible interaction between the fibre and the gluten network. The relaxation curves show that conventional dough is more elastic than both the whole wheat samples; on the contrary, the viscous components are higher in whole wheat doughs, indicating the fibre–protein interaction. From the sensory analysis, the only parameter in which the organic pasta differed significantly from the conventional one was appearance. On the whole, these differences did not affect the acceptability of the product.
Evaluation of Alkali and Acid Pretreatments on Brown Mid Rib Sorghum Varieties for Maximum Cellulose Yield

Producing bioethanol from lignocellulosic plant material is considered as an alternative energy-production system. Plant biomass comprises cellulose, hemicellulose and lignin as major components among others. It is necessary to convert the cellulose and hemicellulose components of plant biomass into fermentable sugars for the production of bioethanol. The major obstacle in converting the cellulose and hemicellulose to fermentable sugars is lignin which is present as an interrelating agent with cellulose and hemicellulose and hinders the activity of cellulases. In this study we investigated alkali and acid pretreatment efficiency to get maximum cellulose yield for low lignin content sorghum raw materials such as Brown Mid Rib 22, 24 and Non-Brown Mid Rib CSH 22. After removing water and alcohol extractives, TAPPI method was applied to determine the cellulose, hemicellulose and lignin content. Raw material was treated with NaOH and H2SO4 concentrations ranging from 2% to 10% and 1 to 5% respectively time of pretreatment ranging from 15 minutes to 60 minutes at temperatures ranging from 60C to 120C. For BMR 24 variety 93% highest cellulose yield was observed when treated with 6% NaOH for 30 minutes at 100C following 89% for BMR 22 variety 76% for non-BMR CSH 22 variety when treated with 4% NaOH for 45 minutes at 60C and 3% H2SO4 for 30 minutes at 80C respectively. The cellulose yield has substantially increased after alkali and acid pretreatments compared with the cellulose yield without pretreatment.
Statistical Load Forecasting Using Optimal Quantile Regression Random Forest and Risk Assessment Index

To support daily operation of smart grid, the stochastic load behavior is analyzed by a day-ahead prediction interval (PI) which is built from predictor’s probability density function, computed in statistical mean-variance, and achieves a symmetrical PI. However, this approach lacks for intended risk information on the predictors’ uncertainty, e.g., weather condition and load variation. This article proposes a novel statistical load forecasting (SLF) using quantile regression random forest (QRRF), probability map, and risk assessment index (RAI) to obtain the actual pictorial of the outcome risk of load demand profile. To know the actual load condition, the proposed SLF is built considering accurate point forecasting results, and the QRRF establishes the PI from various quantiles. To correlate the uncertainty of external factors to the actual load, the probability map computes the most probable quantile happening in the training horizon. Based on the current inputs, the RAI calculates the PI’s intended risk. The proposed SLF is verified by Independent System Operator–New England data, compared to benchmark algorithms and Winkler score. The results show that the proposed method can model a more precise load PI along with the risk evaluation, as compared to results of the existing benchmark models.
Risk factors for recurrence of atrial fibrillation.

OBJECTIVE Atrial fibrillation (AF) is a progressive disease, associated with increased risk of mortality, stroke, heart failure, and worsens quality of life. There is a high incidence of AF recurrence despite the treatment. The aim of the study was to assess the time to recurrence of AF after sinus rhythm restoration with electrical or pharmacological cardioversion and to identify the risk factors. METHODS This study included 101 patients with AF (56% females) at a mean age of 68.02±7 years, after sinus rhythm restoration in a clinical observation of 1-year placebo-controlled treatment with spironolactone (1: 1). The patients were analyzed on the basis of AF recurrence, hospitalization, demographic parameters, comorbidities, embolic risk, and value of biomarker galectin-3 (Gal-3). RESULTS The average number of AF recurrences was1.62 per patient per year. The median time of occurrence of at least one new episode was 48 days, 95% confidence interval (CI) 14.24-81.76. Female patients experienced significantly more recurrences than male-53.3% vs. 28.6% hazard ration (HR) =1.76, 95% CI 1.02-3.03, p=0.036. The recurrences were more common with increased age, although not significantly. Patients with arterial hypertension had a threefold risk of recurrences than those without hypertension (p=0.025), independently of the treatment. CHA2DS2-VASc score was significantly associated with AF recurrent episodes. Patients with gout had a twofold increased risk, without statistical significance (p=0.15). There was no difference in the AF episodes according to treatment with spironolactone. The levels of Gal-3 did not affect the number of AF recurrences (p=0.9). CONCLUSION AF is associated with frequent recurrences after restoration of sinus rhythm in the majority of the patients. Most of them occurred within the first 3 months. Female sex, arterial hypertension, and CHA2DS2-VASc score were significant predictors of AF recurrence. Spironolactone did not reduce AF recurrences.
Energy Generating Electronic Skin With Intrinsic Tactile Sensing Without Touch Sensors

Electronic skin (eSkin) with various types of sensors over large conformable substrates has received considerable interest in robotics. The continuous operation of large number of sensors and the readout electronics make it challenging to meet the energy requirements of eSkin. In this article, we present the first energy generating eSkin with intrinsic tactile sensing without any touch sensor. The eSkin comprises a distributed array of miniaturized solar cells and infrared light emitting diodes (IRLEDs) on soft elastomeric substrate. By innovatively reading the variations in the energy output of the solar cells and IRLEDs, the eSkin could sense multiple parameters (proximity, object location, edge detection, etc.). As a proof of concept, the eSkin has been attached to a 3-D-printed hand. With an energy surplus of 383.6 mW from the palm area alone, the eSkin could generate more than 100 W if present over the whole body (area ∼1.5 m2). Further, with an industrial robot arm, the presented eSkin is shown to enable safe human−robot interaction. The novel paradigm presented in this article for the development of a flexible eSkin extends the application of solar cell from energy generation alone to simultaneously acting as touch sensors.
Liquid Crystal Elastomers with Mechanical Properties of a Muscle

Free-standing anisotropic side chain liquid crystalline elastomer films have been prepared using mesogens with laterally affixed polymerizable side chains. We present data on two networks: one containing the monomer of 4‘-acryloyloxybutyl 2,5-(4‘-butyloxybenzoyloxy)benzoate and another from a 50/50 mol % mixture of the above with 4‘-acryloyloxybutyl 2,5-di(4‘-pentylcyclohexyloyloxy)benzoate. The cross-linking was achieved using 10 mol % of 1,6-hexanediol diacrylate. The calculated cross-linking density, as determined from the Young's modulus, was in the 10 -5 mol/cm3 range. Thermoelastic responses show strain changes through the nematic−isotropic phase transition to be 30−45%. The order parameters of the oriented films were determined from the dichroic ratio of IR absorption at 3343 cm-1 to the in-plane aromatic stretching overtone of the LC mesogen core. The variation of the order parameter with temperature scales similar to the strain changes at constant stress. Isostrain studies, conducted through the.
Shaping of the Air Gap in a V-Typed IPMSM for Compressed-Air System Applications

The shaping of the air gap of a V-typed fractional slot concentrated windings interior permanent magnet synchronous machines (IPMSMs) is investigated for compressed-air system (CAS) applications in this article. The harmonics of no-load air gap density, average torque, torque ripple, and iron losses are studied by the finite element analysis (FEA). The results show that the air gap shaping of the V-typed IPMSM can be effectively used to reduce the torque ripple and stator core loss. It is because the low-order harmonics of the air gap flux density can be reduced with a little decrease in the average torque. The proposed air gap shaping methods have the advantages of simple design and simple manufacture. A V-typed IPMSM with air gap shaping is prototyped to verify the correctness of the analysis results.
Ionization potentials of LinO (2⩽n⩽70) clusters: Experiment and theory

We report on experimental and theoretical investigations of the ionization potentials and structures of lithium monoxide clusters. The clusters were produced by a laser vaporization source, laser ionized, and mass selected by a time-of-flight mass spectrometer. Threshold photoionization spectroscopy was performed using photon energies of 3–5.52 eV and 6.4 eV. Ionization potentials of LinO (2⩽n⩽70) were derived from the photoionization efficiency curves. The evolution of the ionization potentials as a function of cluster size shows distinct steps at n=10, 22, and 42, and a pronounced odd–even staggering up to n≈42. These steps are in agreement with the shell model for metallic clusters, provided that the oxygen atom localizes two of the lithium valence electrons while leaving the other valence electrons delocalized in a metallic cluster. For the small clusters (n<6), fine structure is observed in the threshold spectra, possibly due to the presence of isomeric states in the cluster beam. Geometries and rela.
Atmospheric Oxidation of Methyl Chloride Methylene Chloride, and Chloroform

Chlorinated atmospheric pollutants are presently receiving much attention because of expected chlorine-ozone interactions in the stratosphere.1,2 The fully halogenated pollutants,such as CCI3F, CCl2F2, and CCl4, have no known removal processes that operate in the troposphere. These compounds are accumulating on a global scale, their atmospheric mixing ratios having reached about 2 X 10-10 for CCl2F2,1.2 X 10-10 for CCl3F, and 9 X 10-11 for CCl4.3-5