Miracle-dz/UniFAR-FTUs huggingface dataset:
SAR Target Configuration Recognition via Two-Stage Sparse Structure Representation

A two-stage sparse structure representation algorithm which can preserve the manifold structure of the data is proposed for synthetic aperture radar target configuration recognition in this paper. Manifold structure of the data is preserved by two stages. In the training stage, taking advantage of both the sparse representation (SR) and manifold learning, local structure of the data is preserved in the reconstruction space, where SR-based recognition is realized. In the testing stage, two structure preserving factors based on the testing samples are embedded into the SR model to enhance structure preserving performance. The first one is constructed to preserve the local structure of the testing samples, which can guarantee the samples that are close to each other in the original space will also be close to each other in the sparse space. And the second one is established to preserve the distant structure of the testing samples, which can ensure the samples that are far from each other in the original space will also be far from each other in the sparse space. Manifold structure of the data is well captured and preserved by two stages. Experimental results on the moving and stationary target acquisition and recognition database demonstrate the effectiveness of the proposed algorithm.
Optimization of Electrostatic Atomization Cutting Using 3D FE Simulation of Electrostatic Field

Compared with minimal quantity lubrication (MQL), electrostatic atomization can control the movement of mist droplets by changing the electrostatic field, thus reducing the drift of mist droplets in air. This paper first proposes the concept of electrostatic atomization cutting, and then develops a 3D FE model of electrostatic field for electrostatic atomization cutting using a commercial software Ansoft Maxwell. By simulation, the influence of nozzle angle, structure, and electrode gap and voltage on electric field intensity is investigated. Based on simulation results, the optimal nozzle angle and structure are obtained for electrostatic atomization cutting. The findings contribute to further development of this technique.
Fabrication and characterization of double-network agarose/polyacrylamide nanofibers by electrospinning

This study focused on the preparation of electrospun cross-linked double-network (DN) of agarose/polyacrylamide (PAAm) nanofibers. The agarose formed the first-network that was physical-linked by the agar helix bundles. After UV-irradiation, the chemically crosslinked PAAm was formed as the second network. The resulting cross-linked DN agarose/PAAm nanofibers were characterized by scanning electron microscopy (SEM), contact angle, attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FT-IR), thermogravimetric analysis (TGA), and tensile test. SEM analysis shows the agarose/PAAM nanofibers present with the thickness of 187 nm. Agarose/PAAm nanofibers were showing FT-IR spectral peaks at ∼1660, 1590, and 1070 cm−1 indicating the presence of both agarose and polyacrylamide in the crosslinked DN Agarose/PAAm nanofiber sheet, it suggests the strong interaction and good compatibility between the two components. Agarose/PAAm nanofiber sheet was showing thermal stability close to the pure polyacrylamide. From the tensile test study, agarose/PAAm strength improved by 66.66% compared to the pure agarose. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 42914.
Morphological characteristics of oxide scales grown on H11 steel oxidised in dry or wet air

Abstract The oxidation behaviour in dry and wet air of H11 steel was studied at 600 and 700°C by Thermo Gravimetric Analysis (TGA) and in situ oxidation in the specimen chamber of an Environmental Scanning Electron Microscope (ESEM) equipped with a hot stage specimen holder. The oxidation kinetics of H11 steels are quite sensitive to the presence of water vapour and, although the final mass gains show a good overall reproducibility, they are locally rather irregular. The morphology and microstructure of oxide scale are complex and often heterogeneous, particularly at 700°C. In situ oxidation tests permit to follow the evolution of oxide scales and to observe several growth modes of oxide scales. The diversity of the observed scale growth modes can explain the complexity and irregularity of scale growth mechanisms. Some additional in situ oxidation tests were performed in wet nitrogen. Morphology and growth modes of oxide scale grown in wet air and wet nitrogen differ strongly.
Research on Effects of Vulcanizing System on Performance of EPDM Waterproof Roll-Roofing Material

in this article,effects of the type of vulcanizing system and accelerators and the content of sulphur on the performance of EPDM waterproof roll-roofing material was studied.It was founded from experimental results that the efficient vulcanizing system has the fastest cure rate and good balance of physical mechanical properties,that the vulcanizate has the best balance of physical mechanical properties when the amount of M,TT and TRA was 1phr respectively.
Bradykinin potentially stimulates cell proliferation in rabbit corneal endothelial cells through the ZO-1/ZONAB pathway

Bradykinin (BK) has been demonstrated to induce proliferation in several types of cell in ex vivo corneas. However, the mechanisms underlying the action of BK on corneal endothelial cells (CECs) remain largely unknown. The present study aimed to investigate the effect of BK on rabbit corneal endothelial cell (RCEC) proliferation, and assess the involvement of the zonula occludens-1(ZO-1)/ZO-1associated nucleic acid binding protein (ZONAB) pathway. Cell proliferation and cell cycle distribution was analyzed following treatment with BK (0.01, 0.1,1.0 or 10.0 µM) for the indicated time intervals (24, 48, 72 and 96 h), or following BK treatment combined with transfection of ZONAB-small interfering (si)RNA for 72 h. In addition, the expression of tight junction ZO-1, nuclear ZONAB, proliferating cell nuclear antigen(PCNA) and cyclin D1 were evaluated using western blotting or immunofluorescence. BK treatment was demonstrated to induce time- and concentration-dependent cell proliferation and cell cycle progression, along with the upregulation of tight junction ZO-1 and nuclear ZONAB, as well as PCNA and cyclin D1 protein expression. Furthermore, knockdown with ZONAB-siRNA inhibited cell proliferation, induced cell cycle arrest and downregulated PCNA and cyclin D1 protein expression. ZONAB knockdown therefore successfully reversed the increase in proliferation induced by BK treatment. Taken together, these results suggested that BK stimulated RCEC proliferation, potentially via the ZO-1/ZONAB pathway. The signaling paradigm disclosed in the present study potentially serves as an important therapeutic target for cornea regeneration and transplantation.
Simulation of collision behavior on magnetic pressure seam welding of aluminum sheets

This paper deals with dynamic deformation process on magnetic pressure seam welding of aluminum sheets. Numerical analysis of the dynamic deformation process of the aluminum sheets is made by a finite element method. In this analysis, the metal sheets (100 mm width, 1 mm thickness) are modeled with plane-strain quadrilateral elements. A collision point velocity between the aluminum sheet surfaces was very high at an initial collision point, but it decreased continuously during the welding. A collision angle between the aluminum sheet surfaces was 0 degree at an initial collision point, but it increased continuously during the welding. The collision angle in a double-sided magnetic pressure seam welding process increased more quickly than that in a single-sided magnetic pressure seam welding process.
Niemann-Pick type C2 protein supplementation in experimental non-alcoholic fatty liver disease

Background and aims Hepatic cholesterol deposition drives inflammation and fibrosis in non-alcoholic steatohepatitis (NASH). The Niemann-Pick type C2 (NPC2) protein plays an important role in regulating intracellular cholesterol trafficking and homeostasis. We hypothesized that intravenous NPC2 supplementation reduces cholesterol accumulation, hepatic inflammation and fibrogenesis in a nutritional NASH rat model. Methods Rats were fed a high-fat, high-cholesterol (HFHC) diet for four weeks resulting in moderately severe NASH. Animals were treated with intravenous NPC2 or placebo twice weekly for either the last two weeks or the entire four weeks. End-points were liver/body- and spleen/body weight ratios, histopathological NASH scores, fibrosis, serum liver enzymes, cholesterol, lipoproteins, cytokines, and quantitative polymerase chain reaction derived hepatic gene expression related to cholesterol metabolism, inflammation, and fibrosis. Results HFHC rats developed hepatomegaly, non-fibrotic NASH histopathology, elevated liver enzymes, serum cholesterol, and pro-inflammatory cytokines. Their sterol regulatory element binding factor 2 (SREBF2) and low-density lipoprotein receptor (LDL-R) mRNAs were down-regulated compared with rats on standard chow. NPC2 did not improve liver weight, histopathology, levels of serum liver enzymes or pro-inflammatory tumor necrosis factor-α (TNFα), Interleukin (IL)-6, or IL-1β in HFHC rats. Two weeks of NPC2 treatment lowered hepatic TNFα and COL1A1 mRNA expression. However, this effect was ultimately reversed following additional two weeks of treatment. Four weeks NPC2 treatment of rats raised ATP-binding cassette A1 (ABCA1) and low-density lipoprotein receptor (LDLR) mRNAs in the liver, concurrent with a strong tendency towards higher serum high-density lipoprotein (HDL). Furthermore, the peroxisome proliferator activated receptor-ɣ (PPARG) gene expression was reduced. Conclusions NPC2 proved inefficient at modifying robust hepatic NASH end-points in a HFHC NASH model. Nonetheless, our data suggest that hepatic ABCA1 expression and reverse cholesterol transport were upregulated by NPC2 treatment, thus presenting putative therapeutic effects in diseases associated with deregulated lipid metabolism.
Cold-Chain Adaptability During Introduction of Inactivated Polio Vaccine in Bangladesh, 2015

Abstract Background. Introduction of inactivated polio vaccine creates challenges in maintaining the cold chain for vaccine storage and distribution. Methods. We evaluated the cold chain in 23 health facilities and 36 outreach vaccination sessions in 8 districts and cities of Bangladesh, using purposive sampling during August–October 2015. We interviewed immunization and cold-chain staff, assessed equipment, and recorded temperatures during vaccine storage and transportation. Results. All health facilities had functioning refrigerators, and 96% had freezers. Temperature monitors were observed in all refrigerators and freezers but in only 14 of 66 vaccine transporters (21%). Recorders detected temperatures >8°C for >60 minutes in 5 of 23 refrigerators (22%), 3 of 6 cold boxes (50%) transporting vaccines from national to subnational depots, and 8 of 48 vaccine carriers (17%) used in outreach vaccination sites. Temperatures <2°C were detected in 4 of 19 cold boxes (21%) transporting vaccine from subnational depots to health facilities and 14 of 48 vaccine carriers (29%). Conclusions. Bangladesh has substantial cold-chain storage and transportation capacity after inactivated polio vaccine introduction, but temperature fluctuations during vaccine transport could cause vaccine potency loss that could go undetected. Bangladesh and other countries should strive to ensure consistent and sufficient cold-chain storage and monitor the cold chain during vaccine transportation at all levels.
Deep-tissue photoacoustic tomography of Förster resonance energy transfer

Abstract. Förster resonance energy transfer (FRET) is a distance-dependent process that transfers excited state energy from a donor molecule to an acceptor molecule without the emission of a photon. The FRET rate is determined by the proximity between the donor and the acceptor molecules; it becomes significant only when the proximity is within several nanometers. Therefore, FRET has been applied to visualize interactions and conformational changes of biomolecules, such as proteins, lipids, and nucleic acids that cannot be resolved by optical microscopy. Here, we report photoacoustic tomography of FRET efficiency at a 1-cm depth in chicken breast tissue, whereas conventional high-resolution fluorescence imaging is limited to <0.1 cm. Photoacoustic tomography is expected to facilitate the examination of FRET phenomena in living organisms.
First-Order Fischer Servi Logic

We prove the completeness of a first-order analogue of the Fischer Servi logic $\mathsf{FS}$ with respect to its expected birelational semantics. To this end we introduce the notion of the $\textit{trace model}$ and, much like in a canonical model argument, prove a truth lemma. We conclude by examining a number of other first-order Fischer Servi logics, including the first-order analogue of $\mathsf{FSS4}$, whose completeness can be similarly proved.
Improving command selection with CommandMaps

Designers of GUI applications typically arrange commands in hierarchical structures, such as menus, due to screen space limitations. However, hierarchical organisations are known to slow down expert users. This paper proposes the use of spatial memory in combination with hierarchy flattening as a means of improving GUI performance. We demonstrate these concepts through the design of a command selection interface, called CommandMaps, and analyse its theoretical performance characteristics. We then describe two studies evaluating CommandMaps against menus and Microsoft's Ribbon interface for both novice and experienced users. Results show that for novice users, there is no significant performance difference between CommandMaps and traditional interfaces -- but for experienced users, CommandMaps are significantly faster than both menus and the Ribbon.
Metrology for terahertz time-domain spectrometers

In recent years the terahertz time-domain spectrometer (THz TDS) [1] has emerged as a key measurement device for spectroscopic investigations in the frequency range of 0.1-5 THz. To date, almost every type of material has been studied using THz TDS, including semiconductors, ceramics, polymers, metal films, liquid crystals, glasses, pharmaceuticals, DNA molecules, proteins, gases, composites, foams, oils, and many others. Measurements with a TDS are made in the time domain; conversion from the time domain data to a frequency spectrum is achieved by applying the Fourier Transform, calculated numerically using the Fast Fourier Transform (FFT) algorithm. As in many other types of spectrometer, THz TDS requires that the sample data be referenced to similarly acquired data with no sample present. Unlike frequency-domain spectrometers which detect light intensity and measure absorption spectra, a TDS records both amplitude and phase information, and therefore yields both the absorption coefficient and the refractive index of the sample material. The analysis of the data from THz TDS relies on the assumptions that: a) the frequency scale is accurate; b) the measurement of THz field amplitude is linear; and c) that the presence of the sample does not affect the performance characteristics of the instrument. The frequency scale of a THz TDS is derived from the displacement of the delay line; via FFT, positioning errors may give rise to frequency errors that are difficult to quantify. The measurement of the field amplitude in a THz TDS is required to be linear with a dynamic range of the order of 10 000. And attention must be given to the sample positioning and handling in order to avoid sample-related errors.
Effect of tyre powder penetration on stress and stability of the road embankments

Vehicle tyres are shred due to the friction induced by road surface texture. The shredded tyre particles might then penetrate into the roadside embankment during rain. In this study, the stability of roadside embankment containing 0.25–1.5% of tyre powder is examined. Also the change in extreme stress and displacement is evaluated. Mechanical characteristics of soil–tyre powder mixture are defined through laboratory tests and are used as input parameters needed for PLAXIS software analysis. The results show that the optimum percentage of tyre powder in embankment in terms of stress and displacement is about 0.5%. It is also shown that more penetration of tyre powder in embankment increases the factor of safety against sliding.
Effect of annealing temperature on structural, morphological and electrical properties of nanoparticles TiO2 thin films by sol-gel method

In this paper, the sol-gel method is used to prepare nanoparticles titanium dioxide (TiO2) thin films at different annealing temperature. The prepared sol was deposited on the p-SiO2 substrates by spin coating technique under room temperature. The nanoparticles TiO2 solution was synthesized using Ti{OCH(CH3)2}4 as a precursor with an methanol solution at a molar ratio 1:10. The prepared TiO2 sols will further validate through structural, morphological and electrical properties. From the X-ray diffraction (XRD) analysis, as-deposited films was found to be amorphous in nature and tend to transform into tetragonal anatase and rutile phase as the films annealed at 573 and 773 K, respectively. The diversification of the surface roughness was characterized by atomic force microscopy (AFM) indicated the roughness and thickness very dependent on the annealing temperature. The two-point probe electrical resistance and conductance of nanoparticles TiO2 thin films were determined by the DC current-voltage (IV) analy.
Multi-Source Bayesian Embeddings for Learning Social Knowledge Graphs

Understanding the semantics of social networks is important for social mining. However, few works have studied how to bridge the gap between large-scale social networks and abundant collective knowledge. In this work, we study the problem of learning social knowledge graphs, which aims to accurately connect social network vertices to knowledge concepts. We propose a multi-source Bayesian embedding model, GenVector, to jointly incorporate topic models and word/network embeddings. The model leverages largescale unlabeled data by incorporating the embeddings, and co-represents social network vertices and knowledge concepts in a shared latent topic space. Experiments on three datasets show that our method outperforms state-of-the-art methods. We deploy our algorithm on a large-scale academic social network by linking 39 million researchers to 35 million knowledge concepts, and decrease the error rate by 67% according to online test.
A comprehensive analysis on control plane deployment in SDN: In-band versus out-of-band solutions

Nowadays Software-Defined Networks paradigm becomes more popular in computer networking society, so that it is applied in various networked environments. Although the literature has articulated several benefits of this approach in terms of improved flexibility and performance, the major question of how connectivity between control and data planes in regard to dedicated or shared links between these planes has not received much attention. Diversity of SDN applications leads to complicating the selection of In-Band or Out-of-Band control plane strategies. In this paper, a comprehensive comparison between these two state-of-the-art strategies is investigated. First, several involving factors based on previous works are addressed. Then some experimental evaluations in regard to other important metrics are carried out using Mininet emulator. Analyses show that selecting the best control plane deployment strategy depends on various key parameters such as deployment feasibility, costs, security considerations, link failure challenges, network bootstrapping time and other experimental considerations.
The effectiveness of the Boys Town Educational Model as a school wide intervention

There are many school‐based programs available that claim to provide effective techniques to decrease disruptive behaviors and increase academic engagement. One widely used program is the Boys Town Education Model (BTEM). The problem with widespread use of BTEM is the lack of empirical evidence to support the effectiveness of the program as a systems wide intervention in general education settings. The purpose of this research proposal is to examine the effectiveness of BTEM in comparison to research‐based classroom management techniques, such as reinforcement and correction of behaviors, teaching classroom expectations, social skills instruction, and token economies. Six schools will be chosen to receive the BTEM training package in the classroom management techniques listed above provided in their home schools either through Boys Town or provided by the local area education agency (AEA). Results will be examined by analyzing the variance in office referrals and suspension rates from before intervention to after. It is hypothesized that local training and support in classroom management techniques will yield stronger results when examining academic office referrals and suspension rates. THE EFFECTIVENESS OF THE BOYS TOWN EDUCATION MODEL AS A SCHOOL WIDE INTERVENTION A Thesis Submitted in Partial Fulfillment of the Requirements for the Degree Educational Specialist Natalie Hahn‐Mauck University of Northern Iowa May, 2014
Natural Yellow3 for Dye Sensitized Solar Cell

The natural dye, Curcumin, was extracted from Curcuma longa using as a sensitizer in two types of dye sensitized solar cell (DSSC), and their characteristics were studied. The absorption spectrum of the dye solutions, as well as the wavelength of the maximum absorbance of the dye loaded TiO2 film has been studied. The X-Ray diffraction pattern of TiO2 film made with Doctor-Blading technique shown that the grain size of TiO2 was equal to be 40 nm. The electrical performances in terms of short circuit current, open circuit voltage and power conversion efficiency of cells were investigated.
AntNet: A Mobile Agents Approach to Adaptive Routing

This paper introduces AntNet, a new routing algorithm for communications networks. AntNet is an adaptive, distributed, mobile-agents-based algorithm which was inspired by recent work on the ant colony metaphor. We apply AntNet to a datagram network and compare it with both static and adaptive state-of-the-art routing algorithms. We ran experiments for various paradigmatic temporal and spatial tra c distributions. AntNet showed both very good performance and robustness under all the experimental conditions with respect to its competitors.
RESEARCH OF YIELDS OF AN ELECTRICAL EXPLOSION OF TITANIUM FOILS BY AN ELECTRON MICROSCOPE V. M. Dorovskoj

The results of researches of the rests of a titanic foil after the electric explosion, carried out with the help of scanning electronic microscope DSM-960 are submitted in the paper. The quantitative analysis of the sediment chemical contents has been carried out with using the attachment MIKRIOSPEK-2. The received qualitative result is: the part of a titanic sediment represents the hollow balls. Distribution of diameters of balls and their element structure is investigated depending on condition of experiment. Estimations of gas pressure in balls and results of mass spectrometry analysis of residual gas are given also.