Miracle-dz/UniFAR-FTUs huggingface dataset:
Study on a Novel Fault Diagnosis Method Based on VMD and BLM

The bearing system of an alternating current (AC) motor is a nonlinear dynamics system. The working state of rolling bearings directly determines whether the machine is in reliable operation. Therefore, it is very meaningful to study the fault diagnosis and prediction of rolling bearings. In this paper, a new fault diagnosis method based on variational mode decomposition (VMD), Hilbert transform (HT), and broad learning model (BLM), called VHBLFD is proposed for rolling bearings. In the VHBLFD method, the VMD is used to decompose the vibration signals to obtain intrinsic mode functions (IMFs). The HT is used to process the IMFs to obtain Hilbert envelope spectra, which are transformed into the mapped features and the enhancement nodes of BLM according to the complexity of the modeling tasks, and the nonlinear transformation mean according to the characteristics of input data. The BLM is used to classify faults of the rolling bearings of the AC motor. Next, the pseudo-inverse operation is used to obtain the fault diagnosis results. Finally, the VHBLFD is validated by actual vibration data. The experiment results show that the BLM can quickly and accurately be trained. The VHBLFD method can achieve higher identification accuracy for multi-states of rolling bearings and takes on fast operation speed and strong generalization ability.
Single-Stage Voltage Balancer With High-Frequency Isolation for Bipolar LVDC Distribution System

Conventional voltage balancers for the bipolar low-voltage dc (LVdc) distribution system have been composed of multiple power stages, which degrade their power density and cost effectiveness. To minimize the power stages, this paper presents a single-stage voltage balancer with high-frequency isolation. This voltage balancer is based on the three-level dual-active-bridge converter. Furthermore, for the proposed voltage balancer, an enhanced switching modulation, using the two switching patterns <inline-formula><tex-math notation="LaTeX">$\alpha$</tex-math></inline-formula> and <inline-formula><tex-math notation="LaTeX">$\beta$</tex-math></inline-formula>, is proposed to fully balance the bipolar voltage level under unbalanced load condition and even for when one of the dc poles has no load. Besides, a closed-loop control system can be implemented by using output voltage information and proportional-integral controllers. Finally, experimental results using a 3-kW laboratory prototype converter verify the effectiveness of the proposed voltage balancer.
Major Elements of Parents' Satisfaction and Dissatisfaction With Pediatric Rehabilitation Services

Little is known about the elements of service delivery that underlie parents' satisfaction with the pediatric rehabilitation services their children receive. Determining the most important elements of satisfaction and dissatisfaction will inform health care managers about what should be done in delivering services. In this study, 130 highly satisfied and 101 relatively dissatisfied parents were identified based on their scores on a standardized satisfaction measure (from a pool of 645 parents). Parents' comments (the 3 things they liked most and least about the services received from a children's rehabilitation center or program) were coded using a comprehensive coding scheme based on the medical and rehabilitation literatures. Coding agreement was ensured through a consensus procedure. Highly satisfied parents most often mentioned elements of the service delivery process, particularly respectful and supportive care (i.e., feeling listened to and having a sense of rapport with service providers). Relatively dissatisfied parents most often mentioned structural elements (particularly lack of access to existing services) and process elements (respectful and supportive care, as well as lack of continuity and coordination of care). To ensure parents' satisfaction and prevent dissatisfaction, managers and service providers should reduce waiting lists, provide respectful and supportive care, and ensure services are coordinated across locations and over time. Measures of satisfaction should contain items tapping elements of both process and structure, because structural elements are particularly important in terms of parents' dissatisfaction.
Development of Longest-Match Based Stemmer for Texts of Wolaita Language

This research presents design, experiment and development of longest-match based Stemmer for Wolaita texts. The objective of this paper is to conflate the variants of Wolaita text words into its stem with better accuracy, using Longest-Match based approach. To help the researcher how to compile the possible combination of suffixes, the deep analysis of Wolaita word morphology has been made. For data preprocess and implementation, C# programming language is used. After preprocessing, 12789 unique words are reserved to experiment this research. Out of these unique words, 1200 words are randomly selected earlier and kept separate for testing purpose. Then the developed stemmer was tested using Paice’s actual error counting method. The output on that test dataset has showed 91.84% accuracy over actual manually stemmed words. The obtained result shows that the rule based longest match approach is promising for stemming Wolaita language texts.
The New Apparatus for Teleradium Treatment Used at Radiumhemmet

In 1921 BERVEN introduced teleradium treatment at Radiumhemmet. A year later LYSHOLM1 designed an apparatus in which a lead cylinder absorbing 70 % to 80 % of the hard gamma-rays screened the radiation in all directions except that in which the irradiation was to be applied. This method of treatment is being increasingly used, and teleradium apparatuses of many kinds have been designed. The technical development of the »radium bomb» has proceeded along two different lines: In one type, the apparatus is counterbalanced or provided with spring devices and thus very easily moved, allowing the bomb to follow fairly freely the movements of the patient during the treatment without upsetting the adjustment appreciably (LYSHOLMI, KESSLER and SLUYS2 ) , and in the other the bomb is fixed, whereby the technical exactitude of the adjustments can be made more perfect (BRUZEAU and FERRouxa, FAILLA\ STENSTROM", and MALLET6 ) . Both principles have been used both for permanent fixtures in rooms specially reserved for this kind of treatment and for portable stands. When, thanks to the King Gustav V Jubilee Fund, increased quantities of radium were put at the disposal of Radiumhemmet in 1929, the task of designing a radium bomb for large radium quantities (> 2 gm.) was entrusted to the author in consultation with Dr. E. BERVEN, Chief Phy-
Pan-sharpening Using Spatial-frequency Method

Over the years, researchers have formulated various techniques for pan sharpening that attempt to minimize the spectral distortion, i.e., retain the maximum spectral fidelity of the MS images. On the other hand, if the use of the PAN-sharpened image is just to produce maps for better visual interpretation, then the spectral distortion is not of much concern, as the goal is to produce images with high contrast. To solve the color distortion problem, methods based on spatial frequency domain have been introduced and have demonstrated superior performance in terms of producing high spectral fidelity pan-sharpened images over spatial-scale methods.
Effect of Phase Relations on Speckle Pattern: Simulation and Measurement

Speckle is an important phenomenon in various applications. It can be quantified by speckle contrast. However, at present, the influence of the phase relations among the various wavelengths on speckle contrast is rarely analyzed theoretically. Herein, a thorough method for numerically simulating the speckle pattern is presented to considering the impact of relative phase relations among wavelengths on speckle contrast. This method contains spectral shape, spectral width, and phase relations. In addition, a superluminescent pulse amplifier (SPA) with 6.5-nm bandwidth and a mode-locked laser (MLL) with 21-nm bandwidth are established to conduct the verification experiment. The experimental results show that the SPA light attains lower speckle contrast even with a narrower bandwidth than the MLL light. It is manifested that relative phase relations among wavelengths has significant effect on speckle contrast, and chaotic phase relations could be more advantageous for reducing speckle than just a broad spectrum. The simulation results agree well with experimental results. Therefore, this thorough method could provide a reliable approach to describe the characteristics of speckle pattern caused by broadband light carrying phase information. Considering the speckle contrast is positively proportional to optical coherence, this method could also be used to analyze the coherence of partially coherent light.
A New Hybrid-Excited Flux Reversal Arc Permanent Magnet Machine Having Partitioned Stators for Large Telescope Application

This paper proposes a new hybrid-excited (HE) flux reversal arc permanent magnet (PM) machine (PS-HE-FRAPMM) having partitioned stators which could be applied on large telescope application. The proposed PS-HE-FRAPMM combines the arc PM machine, the stator-PM machine, and the HE machine, which incorporates the merits of high torque, low cogging torque, and wide flux adjustment capability. The machine topology, operation principle, and rotor mechanical analysis of the proposed PS-HE-FRAPMM are first addressed. Then, the different slot-rotor pole combinations are comprehensively investigated. Moreover, the main structural parameters of the proposed machine are optimized for maximizing the torque and minimizing the torque ripple. Finally, the electromagnetic performances of both the proposed PS-HE-FRAPMM and single-stator HE-FRAPMM (SS-HE-FRAPMM) are comprehensively evaluated and compared. The comparison results show that compared with the SS-HE-FRAPMM, the proposed PS-HE-FRAPMM exhibits higher torque capability, lower torque ripple, and relatively wider flux adjustment capability.
Ka-Band Inductor-Shared SP ${n}$ T DP ${n}$ T Switches and Their Applications to TTD Phase Shifter

This paper describes Ka-band inductor-shared RF switches and their applications to a 35.2-ps 6-bit true-time-delay (TTD) switched-line (SL) phase shifter (PS). The inductor-shared RF switches share an inductor to match the input and output (I/O) ports of different states, which are realized with a switched inductor for SP<inline-formula> <tex-math notation="LaTeX">${n}\text{T}$ </tex-math></inline-formula> case and with a shared matching network for DP<inline-formula> <tex-math notation="LaTeX">${n}\text{T}$ </tex-math></inline-formula> case. The switches are applied to controlling most significant 3 bits of the proposed TTD SL PS. The delay lines and reference lines of the PS are implemented with microstrip lines and inverted microstrip lines in the same space, respectively. The dual-side microstrip lines allow it to have not only a small size but also compensation of the loss difference between the signal lines with different lengths. The least significant 3 bits are implemented with the modified structure of the SL PS, which reduces the size further by replacing a reference line by a series switch. The test chip is fabricated in a 65-nm CMOS process. It operates in the range of 20–30 GHz occupying a 0.18 mm<sup>2</sup> core size. Its measured insertion loss and IP1dB are 11 dB and 6.5 dBm at 28 GHz, respectively. The measured gain error and rms delay error are less than 2 dB and 0.7 ps at operation frequencies.
An Efficient CNN a deep learning approach applied on the image matching context

Image matching is a quite challenging task to identify matching images in the data. There are multiple methods in computer vision techniques such as histogram-based algorithms, colour or edge based algorithms, textual based features, SIFT and Surf algorithms which will help to identify similar images. Here in our paper we are addressing an industrial problem to provide the better solution where US multinational courier delivery service facing challenges in delivering the products where labels/tags and bar codes of the products are missed while delivering to the customers and customers comes with the product image and with some information about the product. The job is to map the user or customer product information with the existing missed products. The advances in computer science and availability of GPU Machines, the problem will be addressed, and solutions can be automated using deep learning approaches. The paper describes the solution of matching the solution accurately and comparing the solution with the existing classical computer vision algorithms.
A Rare Disease in Childhood: Angiokeratoma Circumscriptum Naviforme

Angiokeratoma circumscriptum naviforme (ACN) are sharply circumscribed hyperkeratotic vascular lesions that are often located on the lower extremities. It is called as naevoid (naviforme) since it is seen at birth or after birth and it is the rarest type of angiokeratomas. ACN is not related with other systemic diseases. Lesions of the disease are usually located in the lower extremities and are unilaterally localized. In this article, we present a case of five-year-old boy with ACN. During dermatological examination, sharply circumscribed, about 10x20 cm sized, dark red colored, hyperkeratotic vascular lesions in zosteriform distribution on the right knee lateral were observed. ACN was diagnosed after histopathology and clinical examination. We presented this case since the disease is seen very rare and it had typical clinical manifestations.
Comparative evaluation of functional activity of neutrophil in high and low yielding Murrah buffaloes during peripartum period

To evaluate immunologic activities of neutrophils, blood samples were collected from 6 high yielding (HY) and 6 low yielding (LY) Murrah (MU) buffaloes on -15, -7, -5, -3, -2, -1 days prepartum, at calving and on 1, 2, 3, 5, 7 and 15 days postpartum. Blood Total leucocyte counts (TLC) and neutrophil percent increased at calving in both the groups, but the levels were found to be significantly (P < 0.05) high in HY MU buffaloes. The number of bend neutrophils were also significantly (P < 0.05) higher in HY buffaloes. Significant (P < 0.05) immunosuppression in relation to PA was found for HY MU buffaloes throughout the peripartum period with lowest immunosuppression at calving in both the groups. Cortisol levels were significantly (P < 0.01) higher during calving and negatively correlated with neutrophilic functions. The difference between two groups also remained significant (P < 0.05) as higher level of cortisol found in HY MU buffaloes. Elastase, collagenase and cathepsin were significantly (P < 0.05) decreased during parturition. Elastase of HY buffalo neutrophil was reduced 2 times than 1.5 times for LY buffalo at calving. Collagenase and cathepsin levels were significantly (P < 0.05) higher in LY buffaloes. At 7 day pre calving and 7 and 15 days post calving, expression of TLR-2 gene were significantly (P < 0.05) lower in HY buffaloes. Expression of TLR-4 and IL-8 genes were significantly (P < 0.05) lower on days 15 pre and post caving in HY buffaloes. Decreased blood neutrophilic functions in buffaloes having high production potential provides lower disease resistance and make them more susceptible to infection around peripartum.
An approach to model extreme wind speed distributions using the Weather Research and Forecasting model

The aim of this study was to generate hourly mean monthly maximum wind speed return period curves for heights 60 m above the ground using Weather Research and Forecasting modeled data. The methodology introduced produces long-term wind speed data in places where the available measured series for such heights are not long enough for a correct extreme value analysis. Climate Forecast System Reanalysis data are used as input for the Weather Research and Forecasting simulations, providing information for the period 1979–2015. The modeled results are compared with wind speed series measured in anemometric towers, available for the period 2008–2015. Weather Research and Forecasting output is then adjusted to model properly the wind speed at the measuring sites. A good representation of the cumulative distribution of monthly maxima was reached after applying a double linear adjustment.
Attenuation of waves in a viscoelastic peridynamic medium

The effect of spatial nonlocality on the decay of waves in a dissipative material is investigated. The propagation and decay of waves in a one-dimensional, viscoelastic peridynamic medium is analyzed. Both the elastic and damping terms in the material model are nonlocal. Waves produced by a source with constant amplitude applied at one end of a semi-infinite bar decay exponentially with distance from the source. The model predicts a cutoff frequency that is influenced by the nonlocal parameters. A method for computing the attenuation coefficient explicitly as a function of material properties and source frequency is presented. The theoretical results are compared with direct numerical simulations in the time domain. The relationship between the attenuation coefficient and the group velocity is derived. It is shown that in the limit of long waves (or small peridynamic horizon), Stokes’ law of sound attenuation is recovered.
A Small-Plot Granular Herbicide Applicator That Requires No Calibration

An applicator is described that uses the principle of the cone seeder to obtain uniform distribution of granules along the length of the plot and conventional, commercially manufactured, granular spreaders for distribution across the width of the treated area. If plot size is held constant, no calibration or adjustment is necessary when rates of application are varied or when different formulations of granules are used.
Quantitation and Characterization of Phenolic Compounds in Butanol Fraction of Ficus Lyrata Leaves and In Vivo Assessment of Hepatoprotective and Hypocholesterolemic Activities in Rats

ABSTRACT Ficus lyrata leaf extracts in 95% ethanol was fractionated by solvents of increasing polarity and each fraction was screened for its antioxidant activity. The butanol fraction was the most bioactive with 82.40% inhibition of DPPH free radicals. Flavonoids and phenolics of the butanol fraction were identified and quantified by high performance liquid chromatography (HPLC). In vivo assessment against liver fibrosis and hypercholesterolemia in rats showed that the butanol fraction was higher in antioxidant, hepatoprotective, and hypocholesterolemic activities than the standard drugs (silymarin and lipanthyl). These results were confirmed by the observed amelioration in the histopathological features of rat liver.
Entity Disambiguation for Comparable EntityMining Using MLN

Comparing alternative options is one essential step in decision-makings that we carry out every step of the existing method. itdoes not mine rare patterns, the entity disambiguity problem is occurs. to over come these use the Markov Logic Network (MLN) a joint model which combines first order logic (FOL) and Markov networks.The model achieves the contextual information of the recognized entities for entity disambiguation as well as the constraints when linking an entity. Proposed MLN which is the combination of first order logic (FOL) and Markov networks with combination of NIL-filtering and entity disambiguation stages. For entity disambiguation problem the representation capture the entity information from background knowledge with familiar entities as well as the constraints while connecting an entity.
Growth and Structural Development of Tectona grandis in Different Cultivation Systems in Brazil

The objective of the research was to assess the growth and structural changes of clonal and seed-origin teak trees in monoculture and agroforestry systems. The experiment was established in a randomized complete block design with six replicates. Eight treatments were etablished consisting of combinations of two propagation types (clonal and seed-origin), two types of cultivation systems until the age of 24 months (monoculture and taungya system with maize) and two types of cultivation system after 24 months of age (monoculture and silvopastoral systems). The data were analyzed by modeling the growth and yield, diameter distribution and diameter class ingrowth. The technical age of thinning was then determined by the percent entries method. Independent of the cultivation system, clonal trees presented greater tree height and diameter than seed-origin trees. Regarding the cultivation systems, systems ending in a monoculture phase presented greater tree height and diameter than systems ending in a silvopastoral phase. In terms of structure, represented by the evolution of diameter distribution, seed-origin trees and systems ending in a silvopastural phase resulted in flatter and broader distributions than clonal trees and final monoculture phase. Overall, the technical age of the first thinning varied from 6 to 9 years, being earlier for clonal trees in monoculture and later for seed-origin trees in systems ending in a silvopastoral phase. The slower growth and greater variability in silvopastoral systems with seed-origin teak tree can be attributed to the genetic variability of the trees associated competition with the brachiaria grass, which also made the plants more susceptible to the attack of pests.
Variant Phasing and Haplotypic Expression from Single-molecule Long-read Sequencing in Maize

Haplotype phasing of genetic variants is important for interpretation of the maize genome, population genetic analysis, and functional genomic analysis of allelic activity. Accordingly, accurate methods for phasing full-length isoforms are essential for functional genomics study. In this study, we performed an isoform-level phasing study in maize, using two inbred lines and their reciprocal crosses, based on single-molecule full-length cDNA sequencing. To phase and analyze full-length transcripts between hybrids and parents, we developed a tool called IsoPhase. Using this tool, we validated the majority of SNPs called against matching short read data and identified cases of allele-specific, gene-level, and isoform-level expression. Our results revealed that maize parental and hybrid lines exhibit different splicing activities. After phasing 6,847 genes in two reciprocal hybrids using embryo, endosperm and root tissues, we annotated the SNPs and identified large-effect genes. In addition, based on single-molecule sequencing, we identified parent-of-origin isoforms in maize hybrids, different novel isoforms between maize parent and hybrid lines, and imprinted genes from different tissues. Finally, we characterized variation in cis- and trans-regulatory effects. Our study provides measures of haplotypic expression that could increase power and accuracy in studies of allelic expression.
Approximate Entropy and Sample Entropy: A Comprehensive Tutorial

Approximate Entropy and Sample Entropy are two algorithms for determining the regularity of series of data based on the existence of patterns. Despite their similarities, the theoretical ideas behind those techniques are different but usually ignored. This paper aims to be a complete guideline of the theory and application of the algorithms, intended to explain their characteristics in detail to researchers from different fields. While initially developed for physiological applications, both algorithms have been used in other fields such as medicine, telecommunications, economics or Earth sciences. In this paper, we explain the theoretical aspects involving Information Theory and Chaos Theory, provide simple source codes for their computation, and illustrate the techniques with a step by step example of how to use the algorithms properly. This paper is not intended to be an exhaustive review of all previous applications of the algorithms but rather a comprehensive tutorial where no previous knowledge is required to understand the methodology.