Miracle-dz/UniFAR-FTUs huggingface dataset:
Comprehensive Analysis of the SUV Gene Family in Allopolyploid Brassica napus and Its Diploid Ancestors

SUV (the Suppressor of variegation [Su(var)] homologs and related) gene family is a subgroup of the SET gene family. According to the SRA domain and WIYLD domain distributions, it can be divided into two categories, namely SUVH (the Suppressor of variegation [Su(var)] homologs) and SUVR (the Suppressor of variegation [Su(var)] related). In this study, 139 SUV genes were identified in allopolyploid Brassica napus and its diploid ancestors, and their evolutionary relationships, protein properties, gene structures, motif distributions, transposable elements, cis-acting elements and gene expression patterns were analyzed. Our results showed that the SUV gene family of B. napus was amplified during allopolyploidization, in which the segmental duplication and TRD played critical roles. After the separation of Brassica and Arabidopsis lineages, orthologous gene analysis showed that many SUV genes were lost during the evolutionary process in B. rapa, B. oleracea and B. napus. The analysis of the gene and protein structures and expression patterns of 30 orthologous gene pairs which may have evolutionary relationships showed that most of them were conserved in gene structures and protein motifs, but only four gene pairs had the same expression patterns.
Numerical Simulations of Vortex-Induced Vibration of Flexible Cylinders

The main purpose of this paper is to acquire a better understanding of the hydroelastic interactions, which take place between oscillating flexible cylinders and fluid forces. The cylinders are subjected to currents and shear flow, and the hydrodynamic forces are estimated by CFD tools. This article presents the results of an investigation being carried out at the University of Sao Paulo, in which a discrete vortex method is used to simulate the flow around a flexible cylinder. The calculations are compared with results obtained employing the quasi-steady theory, as proposed by Ferrari [2]. Also, the calculations are compared with experiments of a cantilever flexible cylinder immersed in a current, see Fujarra [6]. The reduced velocity vs. non-dimensional amplitude curve obtained in our calculations is compared with the experimental results. Visualizations of the wake indicate a hybrid mode of vortex shedding along the span. A 2S mode is found in regions of low amplitudes, changing to a 2P mode in the regions of larger amplitudes. The position of the transition of the modes varies with the reduced velocity. Our intention is to apply this model to problems occurring in the offshore industry. In this industry fluids are conveyed from the seabed to the platform through slender structures called risers. These risers are subject to shear and oscillatory flows due to currents and waves, respectively, flows with a very high degree of complexity, with changes of intensity and direction the deeper the water depth. A finite element structural model based on the Euler-Bernoulli beam theory was developed. In order to evaluate the dynamic response, a general equation of motion is solved through a numerical integration scheme in the time domain. The hydrodynamic forces are evaluated in two-dimensional strips. The technique used is the Discrete Vortex Method, which is a Lagrangian numerical scheme to simulate an incompressible and viscous fluid flow. A practical case of marine risers is also presented. In this case the results for various uniform currents acting on a single, flexible cylinder, representing a riser of 120m with 100m under water, are shown. Envelopes of maximum and minimum in-line and transverse displacements are presented. There is also a comparison of a shear flow case between the CFD numerical code with the quasi-steady theory code developed by Ferrari [2]. Copyright © 2002 by ASME
Remaining Useful Life Estimation of Aircraft Engines Using a Joint Deep Learning Model Based on TCNN and Transformer

The remaining useful life estimation is a key technology in prognostics and health management (PHM) systems for a new generation of aircraft engines. With the increase in massive monitoring data, it brings new opportunities to improve the prediction from the perspective of deep learning. Therefore, we propose a novel joint deep learning architecture that is composed of two main parts: the transformer encoder, which uses scaled dot-product attention to extract dependencies across distances in time series, and the temporal convolution neural network (TCNN), which is constructed to fix the insensitivity of the self-attention mechanism to local features. Both parts are jointly trained within a regression module, which implies that the proposed approach differs from traditional ensemble learning models. It is applied on the Commercial Modular Aero-Propulsion System Simulation (C-MAPSS) dataset from the Prognostics Center of Excellence at NASA Ames, and satisfactory results are obtained, especially under complex working conditions.
The Implementation of The Policy on School Operational Assistance (BOS) at Junior High Schools in Indragiri Hilir Riau Indonesia

BOS policy is one of the public policies made by the government aiming at improving the quality of human resources as the indicator of the progress of a nation's development. This study aimed at analyzing and describing BOS policy, the implementation of BOS funds, and the supporting factors and inhibiting factors in implementing BOS policy at Junior High Schools in the Tembilahan sub-district. This study design was qualitative using a descriptive method. The data and information were collected through an observation technique, interview, and documentation. Data analysis was conducted using classification steps, analysis, and data interpretation until the conclusion was drawn. The result showed that the BOS policy was an appropriate and effective public policy for people in general and, particularly, for the school, teaching staff, and the students. Regarding the implementation of the BOS policy at Public Junior High Schools in the Tembilahan sub-district, it was good and met the BOS technical guideline. However, it still had an obstacle that several school activities could not be accommodated using BOS funds. The supporting factors of the BOS policy implementation at Public Junior High Schools in the Tembilahan sub-district were good communication between several relevant parties and the availability of competent human resources. Meanwhile, the inhibiting factors were financial resources and the characteristics of the policy were too rigid in the use in every school.
Multivariate Vehicular Traffic Flow Prediction: Evaluation of ARIMAX Modeling

Short-term freeway traffic flow forecasting efforts to date have focused on predictions based solely on previous observations at the location of interest. This univariate prediction is useful for certain types of intelligent transportation system (ITS) forecasts, such as operational demand forecasts at system entry points. In addition, data from upstream sensors should improve forecasts at downstream locations. This motivates investigation of multivariate forecast models that include upstream sensor data. A candidate model is transfer functions with autoregressive integrated moving average errors, otherwise known as the ARIMAX model. The ARIMAX model was applied to motorway data from France that had been the subject of previous traffic flow forecasting research. The results indicate that ARIMAX models provide improved forecast performance over univariate forecast models. However, several issues must be addressed before widespread use of ARIMAX models for ITS forecasts is feasible. These issues include the increased complexity of model specification, estimation, and maintenance; model consistency; model robustness in the face of interruptions in the upstream data series; and variability in the cross-correlation between upstream and downstream observations. The last issue is critical because ARIMAX models assume constant transfer function parameters, whereas the correlation between upstream and downstream observations vary with prevailing traffic conditions, especially traffic stream speed. Therefore, further research is needed to investigate model extensions and refinements to provide a generalizable, self-tuning multivariate forecasting model that is easily implemented and that effectively models varying upstream to downstream correlations.
Simulation of 3-D Unsteady Flows in a Tubular Hydro-Turbine on DES

Taking a hydropower station as the research object, the establishment of a numerical model that contains the full passage Tubular Turbine is given. Based on the transient incompressible N-S equations, a three-dimensional unsteady flow research is conducted. Numerical simulation of steady turbulent flow channel is calculated as the initial condition, the detached eddy simulation (DES) and slip grid technology are adopted to simulate the static-dynamic interference in the unsteady turbulent flow, The instantaneous pressure distribution in full channel and vorticity distribution of the representive section are obtained, so the three-dimensional transient vortex structures in full flow channel of the hydraulic turbine are captured. These studies aiming to explore the mechanism for the formation of vortex-induced vibration of hydro-turbine are valuable for the engineering reference.
Influence of supporting dielectric layers on the transmission properties of frequency selective surfaces

Single layer arrays of linear dipole slots and patches symmetrically embedded in a dielectric layer or bonded to its surface illustrate dielectric tuning effects in this mainly computer aided but partly experimental study. After its initial rapid decline as the layer thickness increases, the resonant frequency of the slots varies cyclically about the limiting value for the patches. Contours of transmission level on a frequency/thickness plot illustrate this frequency pulling effect and lead to a discussion of passband shaping and the sensitivity to angle of incidence. Equivalent circuit concepts account for the observed bandwidth and resonant frequency variations. The performance of two experimental surfaces is described, including the influence of trapped waves in the dielectric.
Type IX Secretion System Effectors and Virulence of the Model Flavobacterium columnare Strain MS-FC-4

Flavobacterium columnare causes columnaris disease in wild and aquaculture-reared freshwater fish and is a major problem for aquaculture. Little is known regarding the virulence factors involved in this disease, and control measures are inadequate. ABSTRACT Flavobacterium columnare causes columnaris disease in wild and cultured freshwater fish and is a major problem for sustainable aquaculture worldwide. The F. columnare type IX secretion system (T9SS) secretes many proteins and is required for virulence. The T9SS component GldN is required for secretion and gliding motility over surfaces. Genetic manipulation of F. columnare is inefficient, which has impeded identification of secreted proteins that are critical for virulence. Here, we identified a virulent wild-type F. columnare strain (MS-FC-4) that is highly amenable to genetic manipulation. This facilitated isolation and characterization of two deletion mutants lacking core components of the T9SS. Deletion of gldN disrupted protein secretion and gliding motility and eliminated virulence in zebrafish and rainbow trout. Deletion of porV disrupted secretion and virulence but not motility. Both mutants exhibited decreased extracellular proteolytic, hemolytic, and chondroitin sulfate lyase activities. They also exhibited decreased biofilm formation and decreased attachment to fish fins and other surfaces. Using genomic and proteomic approaches, we identified proteins secreted by the T9SS. We deleted 10 genes encoding secreted proteins and characterized the virulence of mutants lacking individual or multiple secreted proteins. A mutant lacking two genes encoding predicted peptidases exhibited reduced virulence in rainbow trout, and mutants lacking a predicted cytolysin showed reduced virulence in zebrafish and rainbow trout. The results establish F. columnare strain MS-FC-4 as a genetically amenable model to identify virulence factors. This may aid development of measures to control columnaris disease and impact fish health and sustainable aquaculture. IMPORTANCE Flavobacterium columnare causes columnaris disease in wild and aquaculture-reared freshwater fish and is a major problem for aquaculture. Little is known regarding the virulence factors involved in this disease, and control measures are inadequate. The type IX secretion system (T9SS) secretes many proteins and is required for virulence, but the secreted virulence factors are not known. We identified a strain of F. columnare (MS-FC-4) that is well suited for genetic manipulation. The components of the T9SS and the proteins secreted by this system were identified. Deletion of core T9SS genes eliminated virulence. Genes encoding 10 secreted proteins were deleted. Deletion of two peptidase-encoding genes resulted in decreased virulence in rainbow trout, and deletion of a cytolysin-encoding gene resulted in decreased virulence in rainbow trout and zebrafish. Secreted peptidases and cytolysins are likely virulence factors and are targets for the development of control measures.
Single-Feed, Wideband, Circularly Polarized, Crossed Bowtie Dipole Antenna for Global Navigation Satellite Systems

A wideband circularly polarized (CP) antenna with a single feed is proposed for use in global navigation satellite systems. Its primary radiation elements are composed of two orthogonal bowtie dipoles, which are equipped with double-printed vacant-quarter rings to allow direct matching of the antenna to a single 50-Ω coaxial line and to produce CP radiation. The crossed bowtie dipole is appropriately incorporated with a planar metallic reflector to produce the desired unidirectional radiation pattern as well as to achieve a wideband characteristic in terms of impedance matching and axial ratio (AR) bandwidths. The designed antenna was fabricated and measured. The prototype antenna with an overall 1.2-GHz frequency size of 0.48 λo×0.48 λo×0.25 λo produced a measured |S11| 93%) over the operational bandwidth.
The responsiveness of Italian small-to-medium sized plants: dimensions and determinants

This paper presents a quantitative study carried out on more than 200 manufacturing plants located in Italy. The study aimed to explore whether small-to-medium sized enterprises (SMEs) in Italy are more responsive than large enterprises and determine what the levers are that these enterprises would employ to achieve their responsiveness. Logistic responsiveness has been considered a key driver of competitiveness. Several studies have suggested that company size is a major determinant of responsiveness and that SMEs have both strengths and weaknesses that influence their ability to promptly react to customer needs. The evidence of this study indicates that SMEs are more responsive than large companies in terms of delivery. This performance advantage is mainly the result of a rather narrow product range and a simpler product structure that allows SMEs to enjoy shorter manufacturing and assembly lead times. On the other hand, this study also shows that SMEs perform worse than large enterprises with respect to longer set-up times.
INGEN: a general purpose mesh generator for finite element codes

INGEN is a general purpose mesh generator for two- and three-dimensional finite-element codes. The basic parts of the code are surface and three-dimensional region generators that are linear-blending interpolation formulas. These generators are based on an i, j, k index scheme which is used to number nodal points, construct elements, and develop displacement and traction boundary conditions. 12 figures, 2 tables.
Biomechanics of the medial meniscus in the osteoarthritic knee joint

Background Increased mechanical loading and pathological response of joint tissue to the abnormal mechanical stress can cause degradation of cartilage characteristic of knee osteoarthritis (OA). Despite osteoarthritis is risk factor for the development of meniscal lesions the mechanism of degenerative meniscal lesions is still unclear. Therefore, the aim of the study is to investigate the influence of medial compartment knee OA on the stress state and deformation of the medial meniscus. Methods The finite element method was used to simulate the stance phase of the gait cycle. An intact knee model was prepared based on magnetic resonance scans of the left knee joint of a healthy volunteer. Degenerative changes in the medial knee OA model were simulated by nonuniform reduction in articular cartilage thickness in specific areas and by a decrease in the material parameters of cartilage and menisci. Two additional models were created to separately evaluate the effect of alterations in articular cartilage geometry and material parameters of the soft tissues on the results. A nonlinear dynamic analysis was performed for standardized knee loads applied to the tibia bone. Results The maximum von Mises stress of 26.8 MPa was observed in the posterior part of the medial meniscus body in the OA model. The maximal hoop stress for the first peak of total force was 83% greater in the posterior horn and only 11% greater in the anterior horn of the medial meniscus in the OA model than in the intact model. The reduction in cartilage thickness caused an increase of 57% in medial translation of the medial meniscus body. A decrease in the compressive modulus of menisci resulted in a 2.5-fold greater reduction in the meniscal body width compared to the intact model. Conclusions Higher hoop stress levels on the inner edge of the posterior part of the medial meniscus in the OA model than in the intact model are associated with a greater medial translation of the meniscus body and a greater reduction in its width. The considerable increase in hoop stresses shows that medial knee OA may contribute to the initiation of meniscal radial tears.
Family Environmental Dynamics Differentially Influence Spoken Language Development in Children With and Without Hearing Loss.

PURPOSE The aim of this study was to evaluate whether families of children with sensorineural hearing loss (SNHL) are organized similarly to those of typically developing, typically hearing (TH) children and whether the dimensions of family dynamics and environment are related to spoken language development similarly in children with and without SNHL. METHOD Primary caregivers of children with SNHL (n = 63) or TH (n = 65) completed the Family Environment Scale-Fourth Edition (FES-4) to assess multiple dimensions of family environment. Children's receptive vocabulary was assessed with the Peabody Picture Vocabulary Test-Fourth Edition, and their receptive language was assessed by an age-appropriate version of the Concepts and Following Directions subtest of the Clinical Evaluation of Language Fundamentals and the Sentence Comprehension subscale of the Comprehensive Assessment of Spoken Language-Second Edition. Principal component analysis was used to examine the dimensional structure of the family environment. RESULTS Three higher order components were derived from FES-4 subscales for both families of children with SNHL and with TH: Supportive, Controlling, and Conflicted. However, the composition of the factors themselves differed between the two groups. For the TH group, most family environment measures on the FES-4 were not associated with language outcomes. In contrast, for children with SNHL, families who were more supportive, less controlling, and less conflicted had children with better language skills. CONCLUSIONS Three well-accepted dimensions of family dynamics and functioning apply to families of children with SNHL, but their composition differs from those of families with TH children. Family environmental dynamics were much more strongly associated with language outcomes in children with SNHL than in their TH peers. The spoken language development of children with SNHL, in particular, is better in families that provide high levels of support for each other and, in particular, low levels of control, disorganization, and conflict, reflecting the fragile nature of their spoken language development.
Stall Inception in Axial Compressors

Detailed measurements have been made of the transient stalling process in an axial compressor stage. The stage is of high hub-casing ratio and stall is initiated in the rotor. If the rotor tip clearance is small stall inception occurs at the hub, but at clearances typical for a multistage compressor the inception is at the tip. The crucial quantity in both cases is the blockage caused by the endwall boundary layer. Prior to stall disturbances rotate around the inlet flow in sympathy with rotating variations in the endwall blockage; these can persist for some time prior to stall, rising and falling in amplitude before the final increase which occurs as the compressor stalls.Copyright © 1989 by ASME
mm-Wave Phase Shifters and Switches

The ever increasing speed of transistors in mainstream silicon-based technologies made the mm-wave domain open to consumer electronic applications. Solutions that previously had to be implemented in advanced compound (III-V) technologies and were limited to high-end systems due to cost purposes, are now entering the market of low-cost consumer electronic products. Emerging mm-wave market contains various applications from extremely high data rate transceivers in Personal Digital Assistant (PDA) devices to automotive radar modules and to point to point links for replacing the fiber connectivity in sparse areas. Chapter one highlights the specific requirements of each application that makes it more compatible with a certain type of technology.To have a complete mm-wave system suitable for low cost applications, a single chip or a single package solution is preferred. To achieve this goal integrated low loss transmit / receive switching structures that are highly linear should be employed. A miniature transformer-based shunt T/R switch is introduced and implemented in a standard 90nm CMOS technology. Design equations and trade-offs for such a structure are described in this thesis. Due to a much higher free space path loss of a 60GHz signal compared to its low frequency counterparts (30dB higher loss than WiFi), and lower performances extractable from devices at these high frequencies, phased antenna array structures should be exploited to add passive antenna gains to the transceiver and help meet the link budget requirement. Fundamentals of phased antenna array structures are described and two different implementations, one through true time delay elements and the other one employing phase shifters are presented. For wideband applications and for very large arrays intended to have a wide field of view, true time delay elements should be employed to steer the array pointing beam. This work investigates true time delay elements, and an inductance tuning technique is introduced which enhances the delay tunability of a synthesized transmission line while keeping its characteristic impedance constant. In most mm-wave applications, delay cells in antenna array structures can be approximated and replaced with phase shifters. Hence different types of phase shifters are studied and an active I-Q interpolating phase shifter in the RF-path is designed and implemented at 60GHz.