Miracle-dz/UniFAR-FTUs huggingface dataset:
Estimation of the power of mechanical losses in the engine, transmission and wheels of car on the stand with running drums

The efficiency of a car is considered through the amount of energy loss spent on transmission from the engine to the driving wheels of the car. Analytical and experimental methods for assessing mechanical losses are analyzed. The advantages and disadvantages of road and bench tests of a car in free run modes are indicated. A description of the diagnostic equipment - a stand with running drums, used to simulate the movement of a car in laboratory conditions is given. The components of the necessary measuring equipment for recording the speed and torque on the wheels of a car are considered. The list of primary measuring sensors and main transducers is indicated, which transmit information to the computer. The results of the car run-out on the stand are given: the change in the instantaneous speed from time to time. The primary assessment of the regression model is made and the values of the coefficients are obtained by the method of least squares of deviations of the vehicle speed. A mathematical model for the subsequent processing of experimental data has been developed. The purpose of mathematical modeling is to separate mechanical losses by power units separately for the engine, transmission and car wheels. An assessment was made of the amount of energy losses in the stand itself with running drums. The characteristic of the stand has been obtained, which must be taken into account in the measurement procedure. The results of experimental studies for the GAZ-31029 car are presented. The results of the influence of the technical condition of transmission units and vehicle wheels on the value of the power of mechanical losses are presented. Car tire pressure studies have been conducted. The graphical dependences of the power of mechanical losses depending on the speed of the car are obtained. Recommendations have been developed for diagnosing the general condition of the vehicle by the amount of mechanical losses at the stand with running drums. The ways of further improvement of the method are given. The main conclusions based on the research results are formulated.
Untangling the Link between Human Resource Configuration and Performance of Malaysian Manufacturing Organizations: The Mediating Role of Strategic Human Capital

Human resource (HR) configuration is very imperative in influencing the performance of an organization. However, the link between HR configuration and organizational performance is yet to be determined and little is known about the variables that could mediate this relation. By analysing data from a single industry, this paper aims to enhance understanding the mediating role of strategic human capital between HR configuration and organizational performance. Strategic human capital is a resource that permits an organization to accomplish competitive advantage and higher performance. To establish strategic human capital, however, is not easily fulfilled. As such it is timely to examine the influence of different types of HR configuration namely commitment, productivity, compliance and collaboration on strategic human capital, the impact on organizational performance and subsequently the mediation effect of strategic human capital. The study uses quantitative research approach where 164 responses were gathered. The data were analysed through PLS-SEM. The results indicated that each dimension of HR configuration affect organizational performance through the influence of strategic human capital. The results showed that the role of strategic human capital is important for the organizations to bring about. More importantly, it provides an insight with empirical evidences that prove the influence of strategic human capital in the relationship between HR configuration and organizational performance.
Channel Characterization of IRS-Based Visible Light Communication Systems

This paper studies the temporal characteristics of the intelligent reflecting surface (IRS)-based visible light communication (VLC) channel using radiometric concepts. Throughout this study, we account for the delays experienced by the transmitted power along the continuum of paths originating at the source, passing through the IRS, reaching the detector. Then, we derive the impulse response of multi-element phase-tunable metasurface and orientation-tunable mirror array-based reflector setups for a general setting of source, reflector, and detector dimensions and relative positions. In addition, we derive simpler expressions for the two special cases, namely, the point source and the large-source small-reflector. Moreover, we present the exact expression for the delay spread and derive lower, upper bounds and asymptotic expressions when the number of reflecting elements increases for both reflector types. Finally, we study the impact of several system parameters on the temporal characterization of the two IRS-based VLC systems.
The Protective Effects of a Modified Xiaohua Funing Decoction against Acute Liver Failure in Mice Induced by D-Gal and LPS

Objective The aim of this study was to evaluate the effects of a modified Xiaohua Funing decoction (Xfd) on acute liver failure (ALF) and determine whether the protective mechanisms are related to alterations in the gut microbiota. Methods An animal model of ALF was induced by intraperitoneal injection of D-galactosamine (D-Gal, 0.5 g/kg) and lipopolysaccharide (LPS, 100 μg/kg). Male BALB/c mice were randomly divided into the following 4 groups: the control group (saline, Con), model group (D-Gal/LPS, Mod), silymarin pretreatment group (200 mg/kg, Sil), and modified Xfd pretreatment group (650 mg/kg, Xfd). The Sil and Xfd groups received the respective intervention orally for 14 days and 2 h before D-Gal/LPS treatment. The liver injury markers included alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels and liver histology. 16S rRNA gene sequencing was performed to assess the effects on the caecum content. Results D-Gal/LPS treatment caused severe ALF, illustrating that the ALF model was successfully established. The administration of Sil and Xfd greatly reduced the serum ALT and AST levels and improved the pathological signs of liver injury. However, no significant difference was found between the two groups. In contrast to the Mod group, the Sil and Xfd groups showed a shift toward the Con group in terms of the gut microbiota structure. The abundances of Firmicutes and Bacteroidetes and the Bacteroidetes/Firmicutes ratio in the Mod group significantly differed from those in the Con group. The Sil and Xfd groups showed restoration of the disordered microbiota. Significantly increased relative abundances of Lachnospiraceae_NK4A136_group and Candidatus_Saccharimonas and a markedly decreased Muribaculaceae abundance were found in the Sil and Xfd mice compared with those in the Mod mice (P < 0.01, P < 0.05). Interestingly, a negative correlation was observed between the abundances of the gut microbiota constituents, specifically Clostridia_UCG-014, and ALT and AST levels. Conclusion In summary, our results indicate that Xfd may protect the liver and modify the gut microbiota in ALF mice.
Research on the Evaluation Index System for Practice Teaching in Higher Vocational Schools

Constructing the evaluation index system is important guidance to improve the effect of practice teaching in higher vocational schools,and should follow some principles including scientificity,comprehensiveness,operability and dy namics.Besides,constructing the evaluation index system should take wholly reflecting the practical situation of practice teaching in higher vocational schools and guiding the improvement of their practice teaching level as the objective,select five one-class indicators including the idea,class hour proportion,approaches,teaching staff and effects of practice teach ing;meanwhile,formulate several secondary indicators.
Assessing Neurofilaments as Biomarkers of Neuroprotection in Progressive Multiple Sclerosis

Background and Objectives Improved biomarkers of neuroprotective treatment are needed in progressive multiple sclerosis (PMS) to facilitate more efficient phase 2 trial design. The MS-STAT randomized controlled trial supported the neuroprotective potential of high-dose simvastatin in secondary progressive MS (SPMS). Here, we analyze serum from the MS-STAT trial to assess the extent to which neurofilament light (NfL) and neurofilament heavy (NfH), both promising biomarkers of neuroaxonal injury, may act as biomarkers of simvastatin treatment in SPMS. Methods The MS-STAT trial randomized patients to 80 mg simvastatin or placebo. Serum was analyzed for NfL and NfH using Simoa technology. We used linear mixed models to investigate the treatment effects of simvastatin compared with placebo on NfL and NfH. Additional models examined the relationships between neurofilaments and MRI and clinical measures of disease severity. Results A total of 140 patients with SPMS were included. There was no evidence for a simvastatin treatment effect on NfL or NfH: compared with placebo, NfL was 1.2% lower (95% CI 10.6% lower to 9.2% higher; p = 0.820) and NfH was 0.4% lower (95% CI 18.4% lower to 21.6% higher; p = 0.969) in the simvastatin treatment group. Secondary analyses suggested that higher NfL was associated with greater subsequent whole brain atrophy, higher T2 lesion volume, and more new/enlarging T2 lesions in the previous 12 months, as well as greater physical disability. There were no significant associations between NfH and MRI or clinical variables. Discussion We found no evidence of a simvastatin treatment effect on serum neurofilaments. While confirmation of the neuroprotective benefits of simvastatin is awaited from the ongoing phase 3 study (NCT03387670), our results suggest that treatments capable of slowing the rate of whole brain atrophy in SPMS, such as simvastatin, may act via mechanisms largely independent of neuroaxonal injury, as quantified by NfL. This has important implications for the design of future phase 2 clinical trials in PMS. Trial Registration Information MS-STAT: NCT00647348. Classification of Evidence This study provides class I evidence that simvastatin treatment does not have a large impact on either serum NfL or NfH, as quantified in this study, in SPMS.
Revisiting Hemispheric Asymmetry in Mood Regulation: Implications for rTMS for Major Depressive Disorder

Hemispheric differences in emotional processing have been observed for over half a century, leading to multiple theories classifying differing roles for the right and left hemisphere in emotional processing. Conventional acceptance of these theories has had lasting clinical implications for the treatment of mood disorders. The theory that the left hemisphere is broadly associated with positively valenced emotions, while the right hemisphere is broadly associated with negatively valenced emotions, drove the initial application of repetitive transcranial magnetic stimulation (rTMS) for the treatment of major depressive disorder (MDD). Subsequent rTMS research has led to improved response rates while adhering to the same initial paradigm of administering excitatory rTMS to the left prefrontal cortex (PFC) and inhibitory rTMS to the right PFC. However, accumulating evidence points to greater similarities in emotional regulation between the hemispheres than previously theorized, with potential implications for how rTMS for MDD may be delivered and optimized in the near future. This review will catalog the range of measurement modalities that have been used to explore and describe hemispheric differences, and highlight evidence that updates and advances knowledge of TMS targeting and parameter selection. Future directions for research are proposed that may advance precision medicine and improve efficacy of TMS for MDD.
A NOVEL DESIGN OF WIDEBAND TSPC DIVIDE-BY-32/33 DUAL MODULUS PRESCALER

: A high-speed CMOS TSPC divide-by-32/33 dual modulus prescaler is proposed. The speed of the prescaler is improved in two aspects. First, by adopting a new pseudo divide-by-4/5 prescaler, the minimum working period is effectively reduced by half a NOR gate’s delay. Second, by changing the connection of TSPC D-Flip-Flops, the minimum working period is further reduced by half an inverter’s delay. Simulation results show that the maximum operating frequency of the proposed circuit is improved & compared with conventional circuit. This Proposed System Implemented using Dsch and microwind Software.
A Partial Discharge Location Method Based on the Characteristics of the Electromagnetic Wave Propagation Route in GIS

It's necessary to accurately locate the partial discharge (PD) source to find the insulation defect when PD happens in the gas insulated switchgear (GIS). The ultra-high frequency (UHF) based time of flight method is widely used for its merits such as simple principle,easy implementation,and high location accuracy.But if the initial pulse of the PD signal is small and blurry,the time of flight method can hardly be applied effectively but will induce rather big errors.To improve the precision of location,the propagation route characteristics of electromagnetic waves excited by PD in GIS are investigated.It is shown that the electromagnetic wave propagation route is closely related to the site of PD source and the position of the detector.A PD location method based on the characteristics of the electromagnetic wave propagation route is proposed.Experimental results show that the locating method is precise and effective when the PD source is near the shell of GIS and the initial pulse of the PD signal is very small and hardly distinguishable from background noise.
A Bidirectional Soft Biomimetic Hand Driven by Water Hydraulic for Dexterous Underwater Grasping

Soft robotics are increasingly showing considerable promise for various application in underwater. It is particularly useful in conducting underwater compliant and robust grasping as an end effector compared to rigid-bodied robots. In this work, we describes the design, fabrication and performance of a soft robotic hand driven by water hydraulic for underwater bidirectional grasping. In addition to replicating the five fingers of human hand, an extra soft thumb is symmetrically arranged in active soft palm. The soft fingers is designed with four chambers to enable the bidirectional bending and deflection motions. We propose a novel elastic fiber reinforced structure to enhance and constrain the flexion movements of three palm actuators. The versatility of the underwater robotic hand is evaluated by implementing the comprehensive human grasping postures listed in Feix taxonomy and the novel bidirectional hand grasping in underwater environment. Furthermore, we developed a low-cost one-camera-multiple-mirror imaging device for presenting all-sided behavior of the complex bidirectional grasps.
Seeing Colours: Addressing Colour Vision Deficiency with Vision Augmentations using Computational Glasses

Colour vision deficiency is a common visual impairment that cannot be compensated for using optical lenses in traditional glasses, and currently remains untreatable. In our work, we report on research on Computational Glasses for compensating colour vision deficiency. While existing research only showed corrected images within the periphery or as an indirect aid, Computational Glasses build on modified standard optical see-through head-mounted displays and directly modulate the user’s vision, consequently adapting their perception of colours. In this work, we present an exhaustive literature review of colour vision deficiency compensation and subsequent findings; several prototypes with varying advantages—from well-controlled bench prototypes to less controlled but higher application portable prototypes; and a series of studies evaluating our approach starting with proving its efficacy, comparing to the state-of-the-art, and extending beyond static lab prototypes looking at real world applicability. Finally, we evaluated directions for future compensation methods for computational glasses.
Large‐Scale Crustal Deformation, Slip‐Rate Variation, and Strain Distribution Along the Kunlun Fault (Tibet) From Sentinel‐1 InSAR Observations (2015–2020)

Large‐scale geodetic measurements of crustal deformation in the north‐central Tibetan Plateau are crucial for improved understanding of earthquake‐cycle processes and long‐term seismic hazard assessment. We use GPS velocities and Interferometric Synthetic Aperture Radar (InSAR) observations (2015–2020) on eight descending and eight ascending Sentinel‐1 tracks to map surface motions and their gradients for an area of over ∼2,000 km × 350 km around the Kunlun‐Manyi fault system. The derived line‐of‐sight (LOS) and 3D velocity fields demonstrate ongoing postseismic transients along the ruptured segments of the 1997 Manyi and 2001 Kokoxili earthquakes, interseismic deformation along locked fault segments, and strain accumulation on a large subsidiary fault (i.e., the Kunlun Pass fault). We use elastic dislocation and analytical postseismic deformation models constrained by our dense InSAR measurements to quantify the interseismic and postseismic contributions, which reveal the along‐fault distribution of fault slip rate and locking depth along the entire length of the fault. The results indicate that the slip rate of the Kunlun fault systematically decreases toward the west to the west of the Taiyang Lake fault. We also find that the interseismic strain accumulation rate along the main trace of the Kunlun fault is to first‐order spatially constant (0.1–0.15 microstrain/yr), except around its restraining bend. As the historically unruptured segments, especially the eastern segments (from 95°E to 101°E) of the Kunlun fault, have relatively fast slip rates and high locking depths (>15 km), they have the potential to generate large and damaging earthquakes in this region.
Selection Criteria of Heat Source Model on the Welding Numerical Simulation

Heat source model(HSM)is a basis of the welding process numerical simulation.Its choice affects the accuracy of the simulation results directly.The research progress in HSM of welding numerical simulation is reviewed.The application status of Rosenthal-Rykalin model,2DGuass HSM,2Ddouble elliptic distribution HSM,uniform HSM,hemisphere HSM,3DGuass HSM,3Ddouble elliptic distribution HSM and mixed HSM are emphatically analyzed,as well as the selection criteria is ascertained quantificationally.3DHSM is a development direction in order to analyze the welding melting and solidification.
Automated lane change featuring re-planning in dynamic environments and sensitivity analysis of main operational parameters

Lane changes are frequent maneuvers in everyday driving and have to be included in automated driving functions. We present a real-time capable implementation of an algorithm for an automated lane change with the capability of dynamic re-planning in case the environmental situation changes, e.g. other traffic participants change their intention and the previously calculated trajectory does not guarantee safety anymore. Trajectories are described by polynomials and stored in look-up tables for different longitudinal velocities, longitudinal accelerations and maneuver duration times. Using a single-track model within a linear-quadratic control, the lateral deviation to the reference trajectory and the vehicle’s orientation are controlled. The influence of parameter changes from additional payload, tire-road friction coefficients and tire properties on the vehicle-controller interaction are investigated with a sensitivity analysis on data generated with a simulation. The performance of the algorithm is presented and it is shown that many parameter variations will probably be perceived by occupants, but will not lead to safety-critical situations.
The Role of Bonding, Bridging and Linking: Aspects of Social Capital in Mental Health of Bosnian Refugees in the U.S.

This study explored the role of bonding, bridging, and linking aspects of social capital among Bosnian refugees in the U.S. and their impact on the community‟s mental health. Using snowball sampling and criterion sampling, a total of 74 Bosnian refugees resettled in the U.S. participated in a cross-sectional study and responded to the modified online Personal Social Capital Scale. Most of the participants resided in Missouri, Illinois, New York, Georgia, Florida, California, and Virginia. They reported modest levels of bonding, bridging, and linking social capital; Married participants had higher levels of both bonding and bridging social capital than single, divorced, and widowed participants (p = 0.036; 0.013); religious neutral/not religious participants had a higher level of bridging social capital (p = 0.018) than religious/very religious participants; males had a higher level of linking social capital than females (p = 0.047). Age and the number of years living in the U. S. also made significant differences in participants‟ social capital. Bonding and overall social capital were significantly associated with participants‟ mental health, although the relationships did not appear to be strong. Multi-level social capital building interventions/approaches tailored to Bosnian refugees are recommended, and their long-term mental health effects should be further examined.
Poultry biodiversity for alternative farming systems development

Poultry biodiversity represents a key factor to improve poultry resilience and promote sustainable and low input farming systems. The EU and member states promote protection of livestock biodiversity and the development of alternative farming through funding projects such as “Local Chicken Breeds in Alternative Production Chain: Welfare, Quality and Sustainability” (funded by the Italian Ministry of Research and University). The aim of the present research was to identify among five different poultry genotypes Bionda Piemontese (BP), Robusta Maculata (RM), RM x Sasso (RMxS), BP x Sasso (BPxS) and a commercial hybrid (Ross 308) the best suitable breed in terms of productivity and welfare for alternative housing system. A total of 300 (60 x genotype), 21 days old male birds were randomly allotted in two housing systems: 1) standard intensive farming (controlled environment, 33 kg/m2 and standard diet) and 2) free-range (“natural” environmental conditions, 21 kg/m2, access to outdoor area and low-input diet). Slaughtering was performed at 81 days of age. During the trial, the productive performance and behaviour of the animals were evaluated. The housing system, the genotype and their interaction significantly affected many of the studied variables, showing broiler not the ideal genotype for extensive farming system, which is more suited for low/medium performance strains.