Miracle-dz/UniFAR-FTUs huggingface dataset:
Fractional Precipitation of Wheat Straw Organosolv Lignin: Macroscopic Properties and Structural Insights

Wheat straw organosolv lignin has been thoroughly characterized with respect to bulk material properties, surface properties, and structural characteristics by means of antioxidant assays and determination of the equilibrium constant in water–octanol partitioning, i.e., logP determination, optimized gel permeation chromatography, quantitative 31P NMR spectroscopy, quantitative HSQC measurements, and XPS studies. The material was subsequently fractionally precipitated based on a binary solvent system comprised of n-hexane and acetone to yield four fractions that exhibit distinct molecular mass characteristics, while displaying similar structural characteristics, as revealed by the same set of analysis techniques applied to them. Extensive correlation studies underline the versatility of the obtained fractions as higher quality starting materials for lignin valorization approaches since, for example, glass transition temperatures correlate well with number-average molecular weights, applying the Flory–Fox r.
Semisupervised Hyperspectral Band Selection Based on Dual-Constrained Low-Rank Representation

Band selection (BS) aims to choose a salient subset implied sufficient information from the numerous bands, which supplies a significantly efficient way to alleviate the barrier of dimensionality disaster for hyperspectral image classification (HSIC). This letter develops a semisupervised BS approach based on dual-constrained low-rank representation BS (DCLRR-BS) with two regularizations for HSIC. To be specific, a low-rank representation model is first proposed with super-pixel and imbalanced class-wise constraints, which are explicitly integrated to improve the performance of the band description. Next, the clusters are built adaptively based on graph theory in an unsupervised manner to rapid selection efficiency. A selection criterion is last designed to highlight the prominent band of each subset cluster to fulfill the BS procedure. Experimental results conducted on four types of classifiers with two real hyperspectral image (HSI) data sets demonstrate that the proposed DCLRR-BS method performs well in the imbalanced HSIC area.
The ballistic hip thrust test: a potential tool to monitor neuromuscular performance

To investigate the reliability of the ballistic hip thrust (BHT) test performed on force plates as a diagnostic tool to monitor posterior chain neuromuscular status and compare its usefulness with the counter movement jump (CMJ). Twenty-two male football players from an elite Under-19 French Ligue 1 football club (16.4 ± 0.6 years) performed two assessments; Assessment 1: Two testing sessions separated by one week were performed to assess the reliability of the test. Participants performed a 3-set workout of 4 repetitions of the BHTs each session. Intra-day (between set) and inter-day (between testing day) reliability of concentric mean force, takeoff peak force and peak power were assessed. Assessment 2: Participants performed a 1-set workout of 3 repetitions of the CMJ and 4 repetitions of the BHT tests pre- and post-training to compare the usefulness of both tests. Concentric mean force and takeoff peak force showed small-to-moderate standardised typical errors (TE: 0.2–0.7) for inter- and intra-day reliability. Inter-day concentric mean force showed a coefficient of variation (CV) of 7.2%. Intra-day concentric mean force and take-off peak force showed a CV of 4.2% and 5.5%. BHT and CMJ showed similar moderate levels of usefulness. The BHT test showed moderate levels of reliability and usefulness. This test could be a useful addition to a testing battery to monitor posterior chain neuromuscular status.
Fully Integrated High Gain S-Band Triangular Slot Antenna for CubeSat Communications

Among other CubeSat subsystems, Antenna is one of the most important CubeSat components as its design determines all the telecommunication subsystems’ performances. This paper presents a coplanar wave-guide (CPW)-fed equilateral triangular slot antenna constructed and analyzed for CubeSat communications at S-band. The proposed antenna alone presents high gain and ultra-wide band while its radiation pattern is bidirectional at an unlicensed frequency of 2450 MHz. The objective is to use the CubeSat chassis as a reflector for reducing the back-lobe radiation and hence minimizing interferences with electronic devices inside the CubeSat. This leads to a high gain of 8.20 dBi and a unidirectional radiation pattern at an industrial, scientific and mdical (ISM) band operating frequency of 2450 MHz. In addition to that, the presented antenna is low-profile and exhibits high return loss, ultra-wide impedance bandwidth, and good impedance matching at 2450 MHz.
Correlation of Age, Duration of Diabetes Mellitus, HbA1c Levels, and Erectile Dysfunctions in Type II Diabetes Mellitus

Uncontrolled diabetes mellitus (DM) can cause erectile dysfunctions. A number of studies show that erectile dysfunctions (ED) are more common in a longer period of DM. Age and HbA1c levels are related to type II DM. This study aimed to reveal the correlation between age, duration of DM, HbA1c levels, and ED in type II DM. This was a cross-sectional study of 34 male patients with type II DM conducted in PROLANIS (Program Pengelolaan Penyakit Kronis/Chronic Disease Care Program) in Harjobinangun Village, Sleman, Yogyakarta. The erectile dysfunctions were assessed using the International Index of Erectile Function (IIEF-5) questionnaire. The HbA1c levels were measured from blood samples. All obtained data were analyzed in a Chi-square analysis with a 95% confidence interval. Of the total subjects, 70.6% were aged >60 years, 61.8% have had DM for more than 6 years, 64.1% had HbA1c score >6.5%, and 44.1% were in moderate dysfunction. No correlations were found among the age (p=0.475), duration of DM (p= 0.640), HbA1c levels (p=0.611), and ED. To sum up, here was no correlation between age, duration of DM, HbA1c levels, and ED in type II DM.
Numerical analysis and simulation of an adhesive contact problem with damage and long memory

This paper studies an adhesive contact model which also takes into account the damage and long memory term. The deformable body is composed of a viscoelastic material and the process is taken as quasistatic. The damage of the material caused by the compression or the tension is involved in the constitutive law and the damage function is modelled through a nonlinear parabolic inclusion. Meanwhile, the adhesion process is modelled by a bonding field on the contact surface while the contact is described by a nonmonotone normal compliance condition. The variational formulation of the model is governed by a coupled system which consists of a history-dependent hemivariational inequality for the displacement field, a nonlinear parabolic variational inequality for the damage field and an ordinary differential equation for the adhesion field. We first consider a fully discrete scheme of this system and then focus on deriving error estimates for numerical solutions. Under appropriate solution regularity assumptions, an optimal order error estimate is derived. At the end of this paper, {we report some two-dimensional numerical simulation results} for the contact problem in order to provide numerical evidence of the theoretical results.
Stochastic Periodic Solution and Permanence of a Holling–Leslie Predator-Prey System with Impulsive Effects

Considering the environmental effects, a Holling–Leslie predator-prey system with impulsive and stochastic disturbance is proposed in this paper. Firstly, we prove that existence of periodic solution, the mean time boundness of variables is found by integral inequality, and we establish some sufficient conditions assuring the existencle of periodic Markovian process. Secondly, for periodic impulsive differential equation and system, it is different from previous research methods, by defining three restrictive conditions, we study the extinction and permanence in the mean of all species. Thirdly, by stochastic analysis method, we investigate the stochastic permanence of the system. Finally, some numerical simulations are given to illustrate the main results.
Role of antioxidants in the treatment of hepatocellular carcinoma: Integrative review

Theorical framework: Hepatocellular carcinoma is a unique cancer that typically arises in the setting of chronic liver disease at a rate dependent upon the complex interplay between the host, disease, and environmental factors. Unfortunately, with contemporary management, patients with advanced hepatocellular carcinoma have few treatment options, and the prognosis is poor. Objective: Evaluate the role of antioxidants in the treatment of hepatocellular carcinoma. Methodology: It is an integrative review, with a qualitative approach. Based on research on ScienceDirect and PubMed databases, 12 articles were selected that were consistent with the theme and the inclusion and exclusion criteria, through the association of descriptors and keywords. Results: Studies in vivo demonstrated a positive correlation of antioxidants in the treatment of hepatocellular carcinoma. The antioxidants were able to promote inhibition of development tumor through promotes decrease of proinflammatory cytokines IL-1 and IL-6 and changes the ratios of Bax/Bcl2 that supports apoptosis. In oxidative stress, may be able to direct free radical scavenging activity. Among the main antioxidants with advanced preclinical evidence in the treatment of hepatocellular carcinoma is curcumin with tests in humans, and gallic acid, quercetin and resveratrol with several tests in vitro and in vivo. Conclusion: This study highlights that antioxidants can be a promising therapy in the treatment of hepatocellular carcinoma.
The Spillover of Incivility From Family to Workplace: The Mediating Effects of State of Self-Control

Based on self-control resource theory, taking a questionnaire investigation of 440 pairs of employees and their leaders, this study explored the effecting process of family incivility on workplace incivility through state of self-control. The results revealed that family incivility positively affected workplace incivility and state of self-control. And state of self-control played a partial mediating role in the relationship between family incivility and workplace incivility.
Multimobile Robot Cluster System for Robot Machining of Large-Scale Workpieces

In this article, a novel work pattern for large-scale workpiece machining, that is, multimobile robot cluster machining, is proposed. The key idea is to use distributed coordination control to link multiple robots as a cluster system. The coordination control law acts as a virtual constraint, and multiple robots move synchronously under a common leader. Two topological structures are introduced to describe the communication networks of the cluster system, namely, the N-chain and close-loop topologies. The convergence rate and resistance index of different topological structures are analyzed, and the applications of different topologies in varied machining scenarios are discussed. Two experiments are conducted on the multimobile robot system. The cluster system with a close-loop topology is used for the collaborative handling task, where the relative distance of two mobile robots can be limited within 6 cm. The cluster system with an N-chain topology is used for large-scale wind turbine blade machining. The cluster machining system requires little manual intervention and guarantees the synchronization performance of the machining system.
Self-Compliant Track-Type Wall-Climbing Robot for Variable Curvature Facade

The paper presents a wall-climbing robot featuring self-compliance for variable curvature façades. The high payload and maneuverability make it highly potential in heavy-duty operation of industrial applications. The robot consists of two traction modules and one link module. Each traction module is equipped with magnetic adhesion and crawler traction submodules. The two traction modules are connected by the link module with 4 degrees of freedom (DoF) of passive compliance. Variable curvature façade self-compliance is achieved by the passive compliant link module, which results in the attitude change decoupling of the two traction modules. The attitude can be adjusted under the effect of magnetic adhesion force to comply with the curvature variations. High payloads are achieved by the large contact area between the crawler and the surface. Omni-directional high maneuverability is enabled by the speed difference between the motors of two traction modules. The robot can maneuver in any direction on the surface with a minimum radius of 1 m and carry 36 kg payload on vertical surfaces.
Nitrogen Storage in Crops: Case Study of Zeins in Maize

Crop grains accumulate significant amounts of nitrogen in the form of storage proteins. Grain storage proteins are not only important in the aspects of germination but also, storage proteins are a valuable food source in human and animal nutrition. This chapter will give insight into genotype and growing conditions influencing the quantity and quality of storage proteins, primarily maize storage proteins the leading cereal by world production. Main storage proteins in cereals are prolamins, and in maize prolamins are called zeins located within the endosperm in protein agglomerations called protein bodies. Four main classes of zein proteins are: alpha, beta, gamma and delta zein. Each of four zein classes has a distinctive position and role within protein bodies. Prolamin proteins define nutritional value of maize grain not only via amino acid quality but also via starch availability. Starch, the most important energy component of maize grain, is located within starch-protein matrix. Within this matrix, starch granules are surrounded by protein bodies that limit starch availability. In this chapter, we will describe how zein proteins influence characteristics of maize grain and nutritional value of maize.
The electrospinning behavior of poly(vinyl alcohol) in DMSO–water binary solvent mixtures

Poly(vinyl alcohol) (PVA) is readily soluble in both water and DMSO, however, its solubility in a mixture of DMSO–water is highly dependent on the solvent composition. The present study reports on the electrospinning behavior of PVA solutions in DMSO–water binary mixtures at a temperature of 35 °C. Because of the strong interaction of water with DMSO, both the rheology and spinnability of the PVA solutions were influenced by the composition of the binary solvent mixture. At the same concentration of PVA, the morphology of the electrospun fibers changed from highly uniform thick fibers to very fine fibers with a large number of beads or droplets.
Static Output Feedback Quantized Control for Fuzzy Markovian Switching Singularly Perturbed Systems With Deception Attacks

This article focuses on static output feedback control for fuzzy Markovian switching singularly perturbed systems (FMSSPSs) with deception attacks and asynchronous quantized measurement output. Different from the previous work, both the logarithmic quantizer and the static output feedback controller are dependent on the operation system; by means of hidden Markov models, their modes run asynchronously with that of FMSSPSs. Additionally, the deception attacks are guided by a Bernoulli variable, and nonlinear characteristics are modeled by the Takagi–Sugeno fuzzy model. By resorting to a mode-dependent Lyapunov functional, several criteria are acquired and strictly $(\mathscr {Q},\mathscr {S},\mathscr {R})\text{--}\gamma$-dissipative of FMSSPSs can be ensured. Finally, a dc motor model is expressed to illustrate the effectiveness of the asynchronous control scheme.
Mechanical equilibrium, a prerequisite to unveil auxetic properties in molecular compounds

Abstract The unique physical properties of auxetic compounds make them very attractive materials. Nevertheless, no synthesised materials known to exhibit negative Poisson’s ratio at the molecular level have been made. One way to explore such compounds is to predict potential candidates prior to their synthesis. To achieve it, multi-atom simulation is a powerful predicting tool. However, the lack of existing systems means that the crucial step of validation cannot be carried out. This paper aims to provide a procedure to predict the auxeticity of proposed molecular systems. The strategy is based on first revealing the determinant step in reaching the mechanical equilibrium of existing isotropic compounds such as polymers, or organic glasses, to compute efficiently mechanical properties. The Poisson’s ratio is found in good agreement with experimental data. The procedure is thus modified to be applied to anisotropic compounds, liquid crystals. The agreement with experimental behaviour allowed us to extrapolate the procedure to potentially auxetic compounds, thus offering great opportunities to reveal auxetic properties prior to the synthesis of the molecules.
Kinematic Optimization for the Design of a Collaborative Robot End-Effector for Tele-Echography

Tele-examination based on robotic technologies is a promising solution to solve the current worsening shortage of physicians. Echocardiography is among the examinations that would benefit more from robotic solutions. However, most of the state-of-the-art solutions are based on the development of specific robotic arms, instead of exploiting COTS (commercial-off-the-shelf) arms to reduce costs and make such systems affordable. In this paper, we address this problem by studying the design of an end-effector for tele-echography to be mounted on two popular and low-cost collaborative robots, i.e., the Universal Robot UR5, and the Franka Emika Panda. In the case of the UR5 robot, we investigate the possibility of adding a seventh rotational degree of freedom. The design is obtained by kinematic optimization, in which a manipulability measure is an objective function. The optimization domain includes the position of the patient with regards to the robot base and the pose of the end-effector frame. Constraints include the full coverage of the examination area, the possibility to orient the probe correctly, have the base of the robot far enough from the patient’s head, and a suitable distance from singularities. The results show that adding a degree of freedom improves manipulability by 65% and that adding a custom-designed actuated joint is better than adopting a native seven-degrees-freedom robot.
Determination of specific surface area of mechanical pulp fines from turbidity measurements

Turbidity measurements on suspensions of known consistency can be used to determine the specific surface of mechanical pulp fines. The relationship between turbidity and specific surface is developed from the assumption that the scattering of light by these suspensions can be adequately described as large particle scattering. The validity of this assumption is supported by the absence of dependence of the measured turbidities on the wavelength of the light used. Experimental values for the needed constants are derived from turbidity measurements on polystyrene spheres of known dimensions, combined with a knowledge of the water content of the fines. Optical specific surfaces of wet fines thus obtained are in reasonable agreement with specific surfaces obtained by liquid permeability and nitrogen adsorption measurements. Preliminary considerations suggest that there is about a 90% decrease in the specific surface of mechanical pulp fines during drying.
Microstrip Grid and Patch-Based Dual-Band Shared-Aperture Differentially Fed Array Antenna

The design of a shared-aperture dual-band differentially fed array antenna with microstrip grid and patches is presented in this letter. The patches as high-frequency elements operating at 38 GHz are inserted into microstrip grid array antenna (MGAA) operating at the low-frequency band of 28 GHz. The impedance bandwidth of MGAA can be enhanced from 3% to 16% at 28 GHz due to the introduced resonance from its coupling with the patches. The measurement shows that the proposed antenna can achieve the impedance bandwidths of 15.65% and 16.7%, isolation of more than 20 dB, and peak gains of 14.7 and 14.5 dBi at dual bands of 28 and 38 GHz, respectively. Therefore, the design scheme will be useful for the dual-band millimeter-wave 5G applications.
An Assessment of Hydrogen Addition to Methane Combustion with Argon as a Working Fluid in a Constant Volume Combustion Chamber

ABSTRACT Combustion of natural gas in combination with hydrogen, coupled with argon as a working fluid, is a promising approach to increasing the efficiency of internal combustion engines while decreasing emissions. The use of argon as a working fluid effectively eradicates NOx, extends the flammability limits, and increases the thermal efficiency due to its high specific heat ratio. Additionally, the hydrogen addition aids in emissions reduction and enhances the flammability range. In this study, premixed CH4-H2-O2-Ar combustion is experimentally investigated in an optically accessible constant volume combustion chamber to determine the effect of hydrogen addition on laminar burning velocity, flame morphological structure, and instabilities when argon replaces nitrogen as the working fluid. A numerical thermodynamic model is applied to calculate the laminar burning velocity and an image processing technique is used to quantify the flame speed. The experiments show that, in comparison to methane alone, the addition of hydrogen (40%) to the mixture at atmospheric pressure (1 bar) and room temperature (298 K) increases the maximum laminar burning velocity by 37%, increases the maximum flame speed by 35%, and extends the lower and upper flammability limits from equivalence ratio of 0.4 to 0.3 and 1.6 to 1.7, respectively.
Generative Model Study for 1+1d-Complex Scalar Field Theory

We reported a recent work that applies modern Deep Learning (convolutional neural network) techniques in the context of two dimensional lattice complex scalar field theory, which has a non-trivial phase diagram at nonzero temperature and chemical potential. Especially we introuced the field configuration production with generative adversarial network (GAN), where the GAN is showed to be able to automatically capture the implicit local constraint for the physical configurations and also the underlying physical distribution. We further explored generalize the configuration production at different parameter space using conditional GAN.
Functional Design of a Hybrid Leg-Wheel-Track Ground Mobile Robot

This paper presents the conceptual and functional design of a novel hybrid leg-wheel-track ground mobile robot for surveillance and inspection, named WheTLHLoc (Wheel-Track-Leg Hybrid Locomotion). The aim of the work is the development of a general-purpose platform capable of combining tracked locomotion on irregular and yielding terrains, wheeled locomotion with high energy efficiency on flat and compact grounds, and stair climbing/descent ability. The architecture of the hybrid locomotion system is firstly outlined, then the validation of its stair climbing maneuver capabilities by means of multibody simulation is presented. The embodiment design and the internal mechanical layout are then discussed.
A new epiphytic species, Symphytocarpus macrosporus (Myxomycetes) from Western Siberia, Russia

1 Central Siberian Botanical Garden, Siberian Branch, Russian Academy of Sciences, Zolotodolinskaya, 101, Novosibirsk, RU-630090, Russia; e-mail: anastasiamix81@mail.ru 2 Yugra State University, Chekhova, 16, Khanty-Mansiysk, RU-628012, Russia; e-mail: filippova.courlee. nina@gmail.com 1 Central Siberian Botanical Garden, Siberian Branch, Russian Academy of Sciences, Zolotodolinskaya, 101, Novosibirsk, RU-630090, Russia; e-mail: vlasenkomyces@mail.ru