Miracle-dz/UniFAR-FTUs huggingface dataset:
Development of the Japanese Version of the Linguistic Inquiry and Word Count Dictionary 2015 (J-LIWC2015)

The Linguistic Inquiry and Word Count Dictionary 2015 (LIWC2015) is a standard text analysis dictionary that quantifies linguistic/psychometric properties of English words. The development of a Japanese version of the LIWC2015 dictionary (J-LIWC2015) has been expected in the fields of natural language processing and cross-cultural research. This study aims to create J-LIWC2015 through systematic investigations of the original dictionary and Japanese corpora. All words in the LIWC2015 dictionary were initially subjected to human and machine translation into Japanese. After verifying the frequency of use of the words in large corpora, frequent words and phrases that are unique to Japanese were added to the dictionary, followed by re-category assignments by psychologists. The updated dictionary indicated good internal consistency, semantic equivalence with the original LIWC2015 dictionary, and good construct validity in each category. The evidence suggests that the J-LIWC2015 dictionary is a powerful research tool in computational social science to scrutinize psychological processes behind Japanese texts and to promote standardized cross-cultural investigations in combination with the LIWC dictionaries in different languages.
Creep Effects on Design below the Temperature Limits of ASME Section III Subsection NB

Some recent studies of material response have identified an issue that crosses over and blurs the boundary between ASME Boiler and Pressure Vessel Code Section III Subsection NB and Subsection NH. For very long design lives, the effects of creep show up at lower and lower temperature as the design life increases. Although true for the temperature at which the allowable stress is governed by creep properties, the effect is more apparent, e.g., creep effects show up sooner, at local structural discontinuities and peak thermal stress locations. This is because creep is a function of time, temperature, and stress, and the higher the localized stress, the lower in temperature creep begins to cause damage. If the threshold is below the Subsection NB to NH temperature boundary, 700°F for ferritic steels and 800°F for austenitic materials, then this potential failure mode will not be considered. Unfortunately, there is no experience base with very long lives at temperatures close to but under the Subsection NB to NH boundary to draw on. This issue is of particular interest in the application of Subsection NB rules of construction to some high temperature gas-cooled reactor concepts. The purpose of this paper is, thus, twofold: one part is about statistical treatment and extrapolation of sparse data for a specific material of interest, SA-533 Grade B Class 1; the other part is about how these results could impact current design procedures in Subsection NB.
Object Tracking and Positioning Based on Stereo Vision

The goal of this paper is to present a method for object tracking and positioning based on stereo vision in real time. The method effectively combined stereo matching algorithm with object tracking algorithm, and calculated the spatial location information of the object by using binocular stereo vision while the object is being tracked. The stereo matching used dynamic programming, image pyramids and control points modification algorithm, and the object tracking mainly utilized CamShift algorithm in this paper. The experimental results have confirmed that the proposed method realized real-time tracking for moving object, accurate calculating for the object three-dimensional coordinates, which meet the applied needs of servo follow-up system.
Laser microscale technologies: modeling assisted processes

Set of different physical processes has crucial influence on the required precision in case of shaping of elements with dimensions less than tenths millimeter by means of a laser beam, both in terms of the 3D geometry and the structure of the material in micro-volume. Many issues in the field of micrometer scale materials can be solved and used in practice by modeling processes. This article presents some selected examples of accomplished laser microtechnologies, using beam of nanosecond pulses of fiber laser, successfully supported by computer modeling. Using a pulsed fiber laser beam in the process of a thermal ablation spatial structures of micro elements in ceramic and semiconductor materials were produced. Optimum range of process parameters to ensure efficient removal of material, and acceptable quality of a surface of made elements was set by modeling. In micro-technologies, where structures with submillimeter dimensions are formed, modeling of the process with the phase transition phenomena requires taking into account the energy coupling of a beam – material, nonlinear thermal phenomena and the difficult to modeling problems associated with moving phase boundary as well as latent heat of phase transition.
Wide-wavelength range AlGaInAs laser array achieved by selective area growth on heterogenerous InP-on-Si wafer

In this work, we present an advanced heterogeneous integration scheme which consists in integrating a thin InP layer by wafer-bonding onto a silicon wafer (InPoSi) on which a regrowth step of III-V materials is implemented. Vertical p-i-n AlGaInAs lasers obtained from a single Selective Area Growth (SAG) step on InPoSi were fabricated. Thanks to SAG, the AlGaInAs-MQW structures successfully cover a PL range of 160 nm in the C+L band. Based on these structures, a 5- channel laser array was fabricated. The latter successfully covers a 155 nm-wide spectral band from 1515 nm to 1670 nm with a maximum output power of 20 mW under continuous-wave regime at 20°C. High thermal stability up to 70°C is demonstrated with a characteristic temperature of 69°C for the lasers emitting from 1515 nm to 1600 nm.
Code Formulas for Ship-Impact Design of Bridges

AbstractFour finite-element models of ships with deadweight tonnage varying from 3,000 to 50,000 t are developed for numerical collision simulation. The time histories of ship collisions against rigid walls are obtained using the software LS-DYNA. Equivalent static loading is determined, and simplified formulas are developed through a fitting procedure as indicated by the data from the numerical simulations. Codified formulations from AASHTO and other design specifications are compared with the simplified formulas. The geometric effects of the bridge foundation on the ship impact force are investigated with an example pile cap. A geometric modification factor is proposed for an ideal rectangular block to modify ship impact forces estimated by code formulas.
Comparative Analysis of Gaussian Minimum Shift Keying and Binary Differential Phase Shift Keying Signalling Schemes with Maximal Ratio Combiner over Rayleigh Environment

This paper presents the investigation of two transmission schemes with a diversity combining technique over Rayleigh fading channels. Each of Gaussian Minimum Shift Keying (GMSK) and Binary Differential Phase Shift Keying (BDPSK) transmission schemes was considered with a diversity combining technique known as Maximal Ratio Combining (MRC). Rayleigh fading channel is used statistically to model the communication channel where there is no direct line of sight, which is the attribute of mobile communication. Mobile communication industry is faced with the problem of providing the technology that will be able to support a wide variety of services irrespective of distance, other signals interferences, noise, and objects in the medium of transmission. The system model for the received signal was developed using Jakes model under two propagation paths. The developed model was simulated based on the developed algorithms using MATLAB application package. Two different types of data, randomly generated symbols and image data, were used as the information signal. The results obtained showed that the GMSK scheme had higher average Bit Error Rate (BER) values than the corresponding BDPSK scheme which indicates better performance of BDPSK when the same numbers of bits were transmitted over this channel. Consequently, the quality of the images received with both signalling schemes was in agreement with the BER results. The results obtained showed that though GMSK scheme is comparatively more immune to noise and other interfering signals in this type of fading environment but BDPSK scheme has the advantage of feeding back the output signal to form differential with the input signal which invariably resulted in better average BER of the signal.
Micro-optics packaging and integration for structured laser beam shaping

Micro-optics packaging provides a practical and cost-effective approach for controlling the spatial field distributions of structured laser beams in a variety of photonics applications. Structured laser beams (SLBs) are playing an increasingly important role in ultrahigh resolution microscopy, biophotonics, optical micromanipulation and trapping, laser pumping, materials processing and microfabrication, quantum information, and optical communications. It is shown that the limited aperture sizes, as well as the distortions introduced by micro-optics components during the integration phase, may influence field formation of the structured laser beams, and may alter their spatial characteristics. To avoid the undesirable changes to the field shape of the structured beams during micro-optics design and packaging phases, detailed analysis of the beam propagation characteristics along the optical path is required.
Transit Time and Recovery in Prehospital Emergency Care: Meta-analysis

Background: People living in rural areas usually suffer comparatively disadvantaged emergency health care than those living in urban areas, reasons including long transit time due to geographic factors. Implementation of technology is suggested to improve the access to medical care for the rural population, such as remotely-supported ultrasound and satellite/cellular communications. Methods: Screening of eligible studies were conducted based on inclusion an exclusion criteria. A comprehensive search was conducted by using following database: EMBASE, Medline, Cochrane library and Scopus. Quality assessment tool for observational cohort and cross-sectional study is used for assessing the risk of bias. Transit time was mostly classified into two-stage time symptom onset-balloon time and door-balloon time. In symptom onset-balloon time, we divided into short time group and long time group in our study. The time group were defined based on the median or mean transit time among patients and we also used same way to set up time groups among door-balloon time. The collected data were used for quantitative analysis, they were inputted into Review Manager Software (v5.3) to produce summary results. Results: Ten studies representing 71099 patients were included in the meta-analysis. All studies were retrospective and prospective observational studies and RCTs in which patients experienced ST-elevation myocardial infarction (STEMI) and were treated with percutaneous coronary intervention (PCI). Combined in meta-analysis the odds ratio for mortality in onset-balloon and door-balloon time was 0.82 (CI 0.70, 0.96) and 0.62 (CI 0.53, 0.74) respectively. The forest plot of both onset-balloon time and door-balloon time showed a moderate heterogeneity, with I2 = 31%, P =0.18 and I2 = 67%, P <0.05 respectively. Conclusion: Results from Meta-analysis report less mortality in shorter transit time than that in longer transit time. The demographic characteristics and the sample size of the difference between the long time and short time groups may be the reasons for heterogeneity. The result of the review may potentially support the application of remotely-supported ultrasound and satellite/cellular in prehospital emergency for better health outcome in long transit time.
An Approach to Automatic Great-Scene 3D Reconstruction Based on UAV Sequence Images

In this paper, we propose an approach to automatic great-scene 3D reconstruction based on UAV sequence images. In this method, Harris feature point and SIFT feature vector is used to distill image feature, achieving images match; quasi-perspective projection model and factorization is employed to calibrate the uncalibrated image sequences automatically; Efficient suboptimal solutions to the optimal triangulation is plied to obtain the coordinate of 3D points; quasi-dense diffusing algorithm is bestowed to make 3D point denseness; the algorithm of bundle adjustment is taken to improve the precision of 3D points; the approach of Possion surface reconstruction is used to make 3D points gridded. This paper introduces the theory and technology of computer vision into great-scene 3D reconstruction, provides a new way for the construction of 3D scene, and provides a new thinking for the appliance of UAV sequence images.
Dispersion-modified actively modelocked erbium fibre laser using a chirped fibre grating

The authors describe the operation of an actively modelocked Er fibre laser incorporating a chrped in fibre Bragg reflection grating as one end mirror to the cavity, acting as a lumped highly dispersive element. In one oreientation the grating shifted the cavity into normal dispersion regime and pulses of -25ps duration were produced. In the opposite oreintation, the cavity dispersion was anomalous and ~8ps pulses were produced with characterisitics typical of solitons propagating in a periodically perturbed system.
Low-frequency noise in advanced CMOS/SOI devices

The low-frequency noise (LFN) in partially- and fully-depleted SOI CMOS technologies is overviewed. The static performances and the drain current noise in both linear and saturation regimes are presented for different SOI architectures. Particular attention is paid to the floating body effect that induces a kink-related excess noise, which superimposes a Lorentzian spectrum on the flicker noise. The behaviour of this effect with the frequency and the physical mechanisms explaining this excess noise, are discussed. The control of this noise overshoot by using a body contact or by applying a back gate voltage is also demonstrated. Also, LFN in DTMOS (dynamic threshold MOS) with the body connected to the gate is studied. The use of a clamping transistor as a body current limiter results in excess Lorentzian-like noise, which is similar to the noise induced by the kink effect. Finally, the influence of the gate leakage in an SOI MOS with thin oxide is shown.
GeoPose: Dense Reconstruction Guided 6D Object Pose Estimation With Geometric Consistency

6D object pose estimation for texture-less objects from RGB images remains challenging, especially in occlusion scenarios. Instead of localizing sparse keypoints by regressing their image coordinates or heatmaps, which are sensitive to occlusion, we introduce GeoPose, a novel reconstruction guided pose estimation pipeline that predicts dense correspondences and leverages geometric consistency effectively. We first design a dense reconstruction network (ReconNet) to reconstruct pixel-wise object coordinates in normalization space. Dense 2D-3D correspondences are generated intuitively by our explicit parameterization for 3D object models, which dismisses keypoint selection efforts. These 2D-3D correspondences are then utilized to estimate 6D poses by the PnP algorithm with RANSAC iterations. Furthermore, a novel Cycle Loss is proposed to provide 3D prior supervision, which significantly correlates with the pose estimation task by guiding geometric consistency between reconstruction (pixel to 3D) and reprojection (3D to pixel). In addition, a training data augmentation method is proposed to handle the insufficiency of 6D datasets, the acquisition of which is error-prone and time-consuming. Extensive experiments demonstrate that, compared with existing RGB-based methods, our GeoPose can achieve state-of-the-art (SOTA) 6D pose estimation performance on the LINEMOD, Occlusion LINEMOD and T-LESS datasets.
Research on the Numerical Simulation Technology in the Cutting Process of Aluminum 2024-T3

Metal cutting is a very complex process of plastic deformation, and chip formation is a typical problem of large deformation, which involves the material nonlinearity, geometric nonlinearity and nonlinear state changes. Strain hardening model of Al 2024-T3 material is established based on elastic-plastic theory of material deformation. Finite element method is used in the analysis of the established model by ALGOR. The distribution of equivalent stress, yield stress and equivalent strain is concluded concretely in the metal cutting process in this paper.
The Design and Realization of Ship Power Management System Based on Modbus

In order to supervise and control the ship power system remotely and automatically, the automatic monitoring system is designed based on Modbus protocol. The system realizes unattended and long-distance concentrate supervision and control of power system, and it manages power automatically. The system has the ability to improve the automation level and to reduce labor intensity.
An ultrahigh resolution FBG dynamic strain sensing system with eigenvector spectrum analysis method

An in-fiber Bragg grating (FBG) dynamic strain sensing system based on a fiber ring laser configuration and the Eigenvector spectrum analysis method, is proposed and demonstrated. An ultrahigh dynamic strain resolution of 5x10-5 nε /Hz1/2 is achieved due to both the use of the supper white-noise suppression ability of the advanced spectrum analysis method and the high optical signal-to-noise ratio (SNR) (~65dB) of the sensing signal generated by the fiber ring laser scheme. This is the highest dynamic strain resolution achieved so far for a single FBG sensor at frequency of <100Hz, to the best of our knowledge.
Influence of Pedestrians Entry Process on Pedestrian Delays at Signal-Controlled Crosswalks

The writers claim that the process of pedestrians' entry to the signal-controlled crosswalk can affect the values of pedestrian delays. The existing models have been based on some typical situations and would not always consider the character of pedestrians' entry process. The use of these models for crosswalks where pedestrians' entry process is not uniform can lead to inaccurate estimation of pedestrian delays. A number of measurements have been carried out, recording the entry process and the delays. The delay values estimated using the existing models have been compared with the values from field measurements. The comparison has proved that there are situations in which the existing models do not provide accurate estimation of delays. Therefore, three new delay estimation models have been proposed. They differ in the degree of accuracy and complexity as well as practical utility. The results obtained using the new models have been compared with the results of field measurements. At the end of the paper the sensitivity of all the models to the selected parameters has been analyzed. Finally, a conclusion and evaluation of the whole research close this paper.
Predictive and linear quadratic methods for potential application to modelling driver steering control

A brief review of the literature reveals that both predictive control theory and linear quadratic (LQ) control theory have been used to design path-following controllers with preview, but it is not clear how the controllers compare. This article derives optimal linear preview controllers using the two approaches starting from a common state-space description of the vehicle dynamics. The transformation of the controllers from ground-fixed axes to vehicle-fixed axes is discussed. The influences of preview horizon, control horizon and cost function are investigated. For the case of long preview and long control horizons, it is found that the predictive and LQ approaches give identical controllers. The results in this article provide a basis for identifying human steering behaviour from measured data.
Bulging Factor for Axial Surface Cracks in Pipes

The bulging factor for an external constant-depth axial surface crack in a pipe was calculated by 3D FE simulations. This was done in a manner consistent with Folias’s original work for the axial through-wall-cracked pipe bulging factor (MT), but was evaluated in the elastic to full-plastic conditions. The results demonstrated that the actual surface-cracked pipe bulging factor is considerably lower than the bulging factor empirically derived by Maxey/Kiefner (Mp) back in the 1970s. Based on the results of the present study, it is suggested that Mp function in the Ln-Secant equation is not truly a bulging factor for axial surface crack. Rather it is an empirically developed equation with many correction factors embedded in it to apply the Dugdale model for prediction of maximum pressure of axial surface-cracked pipes. However, due to this empiricism, this method becomes invalid (or overly conservative) when it is applied in predicting the crack-driving force using the J-based Ln-Secant equation.Copyright © 2014 by ASME
Determination Critical Period of Weed Competition and Their Control Method in Carrot Yield(DaucusCarotaL) With Economic Feasibility

Four field experiments were conducted at Horticulture Research Station, El-Kanater El-Khiria, Kalubia governorate in two successive winter seasons 2016/17 and 2017/18. First, two of them were carried out to determine the period required for weed free maintenance after carrot sowing to produce the maximum yield and the long of weed competition period which can be allowed without reduction in the yield . Each experiment contained twelve treatments i.e six weed free periods at 2, 4, 6, 8 and 10 weeks after sowing and for the whole season and six treatments of weed competition period at 2, 4, 6,8 and 10 weeks from sowing and for the whole season. Second, of them two field experiments were carried out to evaluate the efficacy of some promising pre emergence soil acting herbicides on weeds and root yield of carrot. Each experiment including seven weed control treatments namely hand weeding at twice, metribuzin at the rate of 100 g /fed. , linuron at the rate of500cm/fed. , pendimethalin at rate 1.7 liter /fed. , butralin at rate.2. 5 liter/fed. , as post sowing preemergence, prometryn the rate of 1.25 liter. /fed. as post sowing and well as the unweeded treatment. The main findings showed that weed infestation for whole season reduced yield of carrot per fed. by 47.1 and 47.0% in both seasons, respectively, than weed free for whole season treatment. Mathematized models which given the relationship between weed infestation periods and carrot yield show that quadratic equation was the best model to predict yield losses due to weed competition is showing that the critical periods length of weed competition nine weeks period from sowing which is required to be eliminates to obtain the maximum carrot yield of carrot without reduction. Weed free for all season gave the best value for all characters per faddan. In the second study, results show that the use of linuron at the rate of 500 cm3/fad gave the highest controlling percentages of the annual broad leaf and grassy weeds through this period with the highest values of carrot yield and can be advised for weed control in mentioned critical period of carrot. At harvest there is no herbicides residues were detected in the edible carrot yield.