bluuebunny/crossref_metadata_2025_split huggingface dataset:
Fault diagnosis of rolling bearing based on improved EMD algorithm
Authors: Meng Shuo , Kang Jianshe , Chi Kuo , Die Xupeng 
Published: August 2020

Abstract
The EMD (Empirical mode decomposition) is a good method to diagnose faults of equipment, but the endpoint effect and false IMF (Intrinsic Mode Function) of EMD seriously affects the effect of fault diagnosis. So this paper used an adaptive waveform matching extension algorithm to restrain the endpoint effect. To select effective IMF, moreover, this paper put forward another method which is based on information entropy and kurtosis value. Finally, the paper used the two methods combined with HHT to diagnose the bearing fault, the experimental results show that the above problems have been effectively solved and the fault diagnosis effect has been significantly improved.
Simulation for drawing process of core filled tube
Authors: Qi Junlong , Liu Xianghua , Gao Haitao , Sun Xiangkun 
Published: August 2020

Abstract
In this study, finite element method (FEM) was adopted to analyze the drawing process of the core filled tube (CORFT), and wall thickness and relative density of the core material were obtained. The prediction results of the FEM were compared with experimental results, revealing good agreement between them. Both the simulations and the experiments showed the existence of an ultimate relative density of the core material during the drawing of the CORFT. The influences of the process parameters on the ultimate relative density of the core material were determined using the FEM.
FEM simulation and frequency shift calculation of a quartz crystal resonator adhered with soft micro-particulates considering contact deformation
Authors: Xie Xuan , Liu Yuhong , Ye Yong 
Published: August 2020

Abstract
Recently some researchers studied the frequency characteristics of a quartz crystal resonator (QCR) adhered with micro-particles to measure their physical and geometric parameters. Many researchers regard the particles as rigid spheres or consider the elasticity but ignore the contact deformation and contact area of the particles. In fact, the adhesion and vibration of soft particles are coupled together and the interaction is strong and complicated. In this paper, we separately simulated the adhesion and vibration of the particles using finite element method with ANSYS software. Through transmission line model of the QCR, we get the frequency shift induced by surface particles. We found larger, softer and heavier particles produce greater contact deformation and load impedance which cause greater frequency shift (negative). The obtained results can be applied into characterization of size and elastic modulus of micro-particulates.
Theoretical and micro simulation study on cutting temperature of SiCp/Al by ultrasound vibration cutting
Authors: Yang Liang , Xu Chunguang , Fu Bohua , Sun Mingjie , Ming Liu Xiao 
Published: August 2020

Abstract
SiCp/Al material is isotropic and belongs to hard machining materials. Cutting temperature has a great influence on the optimization of machining process and tool life. In this paper, the analytical expression of temperature field in ultrasonic vibration turning of SiCp/Al composites is obtained by iteration of heat source method. The dynamic physical simulation model of ultrasonic vibration cutting SiCp/Al cutting temperature is established. Particles are randomly distributed in the matrix, temperature curves of particles above, middle and below the cutting path with time are analysed, the trend of the temperature curve of particles with time is that it increases first, then decreases, then increases, and finally stabilizes.
Research on the application of neuroaesthetics in industrial design
Authors: Sun Mei , Han Haocheng , Jiang Quanhong 
Published: August 2020

Abstract
People’s pursuit of aesthetic emotion is rising day by day, they pay attention to the practicality of products with a higher pursuit for the beauty of products. Industrial design takes the product design as core, the artistic decent expression is an indispensable link. The emergence of neuroaesthetics has laid a solid foundation for exploring the connection between individual nerves and product design. This paper introduces the history of industrial design, analyzes its development stages through comparison of different cases, and discusses the application principles of neuroaesthetics in industrial design.
Improved Elman neural network in turbine blade fault diagnosis
Authors: Zhuo Pengcheng , Xia Tangbin , Zhang Kaigan , Chen Zhen , Xi Lifeng 
Published: August 2020

Abstract
To remotely monitor and maintain large-scale complex equipment in real-time, it is required to create a comprehensive framework integrating remote data collection, transmission, storage, analysis and prediction. The framework is designed to provide manufacturers with proactive, systematic, integrated operation and maintenance service, where the data analysis and health forecasting are the most important part. This paper conducts health management for the turbine blades. An output-hidden feedback (OHF) Elman neural network is developed by adding a self-feedback factor in the context nodes. Thus, this improved method can increase the accuracy of the fault diagnosis for guide vane damage. Through the results, the applicability of this improved Elman neural network has been verified.
Thickness effect on pinning properties for GdBa2Cu3O7-x films deposited with RF sputtering
Authors: Xu Jianming , Xie Zhongzhou , Li Zhen , Luo Xiaojing , Zhu Yanyan , Gao Tian , Wang Ying 
Published: August 2020

Abstract
We studied the relationship between JC and H, direction and crystallization orientation of GBCO films grown by RF sputtering with different thickness which is 0.3 um, 0.5um and 0.9um respectively. By de-convoluting the random pinning from the correlated pinning contributions, we find that all the three films exhibit a lower effective anisotropy parameter γ = 3 rather than γ = 5 in YBCO films. The thinnest film is the most anisotropic. The anisotropic scaling analysis reveals an enhanced random pinning for thick film the whole range of angles studied in the angle correlation Jc curve. The Jc-thickness dependence analysis indicates that there is a certain threshold field Hd and a certain thickness d for magnetic decoupling.
Analysis on failure mechanism of CFRP double-tap interference-fit joint
Authors: Zou Peng , Chen Hao , Bi Xue 
Published: August 2020

Abstract
Composite interference-fit joints have attracted much attention because they can effectively reduce the stress concentration around the holes during loading. In this paper, the load-bearing mechanism and strength of a typical double-lap structure under static load are studied through experiment and finite element method. In order to eliminate the influence of bending moment and other factors, a special fixture was designed to study the damage failure mechanism of CFRP interference fit joint under pure tension. The finite element model of CFRP interference fit double lap structure considering both intralaminar and interlaminar damages was established with ABAQUS user subroutine and cohesive element. The damage propagation mechanism during loading process is revealed and the ultimate bearing strength is predicted by comparing the results of experiment and finite element model.
Vibration control of deployable truss antenna reflector-scanning mechanism
Authors: Hu Fei , Song Yanping , Ma Xiaofei , Duan Yuzhu , Xie Fangfang , Li Wan 
Published: August 2020

AbstractScanning mechanism and truss reflector are important components of antenna. Aiming at the mechanical system and control system composed of scanning mechanism and truss antenna, the co-simulation technology of hybrid stepping motor and flexible dynamic mechanism is proposed. Through the simulation results of the current and position changes of the antenna system, the various physical characteristics of the system during the co-simulation are studied, and the vibration characteristics of the overall antenna system are analyzed, which verifies the cooperative ability of the antenna mechanism system and the control system.
Study on surface roughness of zirconia ceramics in high efficient and precision grinding process
Authors: Wang Kechong , Li Songhua , Sun Jian 
Published: August 2020

Abstract
In order to solve the problem that the surface roughness of engineering ceramics is difficult to control, this paper studied the influencing factors of surface roughness of zirconia ceramic grinding. The effects of grinding depth, grinding wheel speed and workpiece feed rate on surface roughness were analyzed by the orthogonal experiments of zirconia ceramic grinding. On this basis, single factor experiments were carried out respectively, and the optimal combination of process parameters was analyzed. In addition, an empirical formula of surface roughness for the grinding of zirconia ceramics was established based on the experimental results. The results showed that the grinding depth had a great influence on the surface roughness, the grinding wheel speed effect was secondary, and the effect of the workpiece feed rate on the surface roughness was not very obvious. Compared with the measured value, the maximum relative error of the predicted value was less than 5%, which indicated that the empirical formula had a better prediction effect and provided a theoretical basis for reasonable selection of grinding parameters in actual processing.
Study on inner insulation tube for ITER axial insulation breaks
Authors: Yang Changchun 
Published: August 2020

Abstract
Inner insulation tube as a key component of ITER insulation break, its fabrication process was designed, and the specimen type was designed and made. Fibres and void content was tested, and thermal coefficient was measured. The results showed that it is reasonable to use R glass fibres in filament wet winding as inner tube for ITER IB because the thermal shrinking measure of this composite fabricated by this process technology is so close to the one of stainless steel 316L that it is good to reduce the thermal stress in the insulation structure of IB
Parameter identification of additional forces and torques for simulated space manipulator in zero-g simulation system
Authors: Tian Sihui , Tang Xiaoqiang , Li Yuqi 
Published: August 2020

Abstract
In this paper, the strain expressions a manipulator arm are established. The strain expressions affected by gravity, suspension force and torque are considered as well. The arm model is simplified as a cantilever beam, which makes the derivation more concise. In addition, the strain gauges are set on the arm to collect the strain data when the manipulator operates. The parameters of additional forces and torques are identified. And the fitting curve is very close to the experimental data.
Experimental research on laser micro-texture friction coefficient of V-clamp Mold
Authors: Mei Mei , Wu Shuqian 
Published: August 2020

Abstract
The friction pair between the V-clamp stamping mold and the blank directly affects the forming quality of the V-clamp. The goal of this paper is to optimize the mold friction coefficient of V-clamp with laser micro-texturing technology. To validate the texture area occupancy rate and the depth of morphological depression, the actual working condition was simulated, and the friction test was conducted. The experiment results implies that, in the case of the same morphological depression depth, the friction increase effect achieved the best with 15% texture area occupancy rate and the friction reduction effect worked best while 50%; the sample with 15% area occupancy rate and with the morphological depression depth 7.192μm had the best friction reduction effect. The research results provided a basis for surface optimization of V-clamp stamping mold.
Research on adjusting size proportion of cut tobacco
Authors: Hou Jiawen , Dong Wang Dong , Wang Deji 
Published: August 2020

Abstract
For solving the applicability of size proportion ofcut tobacco under the Internet environment, The device adjusting size proportion of cut tobacco needs to be developed including a feeding belt conveyor, a tobacco regulating device, a discharging belt conveyor, a guiding groove and a fixed bracket. Among these devices the feeding belt conveyor adopts two-way control of size proportion ofcut tobacco without adjusting the choice; the device adjusting size proportion of cut tobacco consists of a feed roller of tobacco, a Uniform roller of tobacco and a Cut tobacco roller, mainly by adjusting the feeding roller of tobacco, Cut tobacco roller speed difference and gap adjustment to control size proportion cut tobacco. Application test was made in Henan tobacco corporation. The results showed that: the gap between the feeding roller and the broken roller are the significant factors in proportion of long stands rate, middle stands rate, short stands rate and small particles rate. the long stands rate is positively associated with the gap, the rest are negatively correlated with the gap, ② the rotational speed of cut tobacco smoothing roller, cut tobacco feeding roller, Cut tobacco cutting roller has certain effect on, proportion of long stands rate, middle stands rate, short stands rate and small particles rate and cannot be ignored in practical work. Conclusion: This design can improve the structure of the cut tobacco through the gap between the cut tobacco feed roller and the cut tobacco break roller. How to quantify the specific effect requires special research.
An evaluation method of synthetic force engineering support capability based on multi-level grey system
Authors: Fan Jisong , Xu Jiawei , Ren Hui 
Published: August 2020

Abstract
Engineering support operations are characterized by diverse tasks, dispersed regions, complex command coordination, many points, long lines and wide areas. It has been difficult to model and evaluate its capability comprehensively. In this paper, according to the characteristics, the index system of support capability of synthetic Force project is constructed, and the support capability of synthetic Force project is analysed and evaluated by combining multi-level grey relational analysis theory and AHP. An evaluation method is put forward and verified by an example. Compared with the past models and methods, they are simple to operate, applicable and scientific in conclusion. It is convenient to analyze and compare the support capacity of multiple units. It can provide support and basis for the development of engineering support capacity construction and scientific assessment of synthetic Force.
Static balancing of flexural pivots with two symmetrically arranged pre-compressing springs
Authors: Yang Qizi , Bi Shusheng , Liu Tian 
Published: August 2020

Abstract
To overcome the spring back behavior of the flexural pivots, a novel statically balanced flexural pivot with two symmetrically arranged pre-compressing springs (SBFP-2PCS) is proposed. Five balancing design parameters and two design objectives of the SBFP-2PCS are specified. The design parameters are determined based on the stiffness analysis of the SBFP-2PCS. Samples of the SBFP-2PCS are built to verify the proposed balancing method. The test result of the average stiffness reduction is 92.5%. The proposed method is general for various flexural pivots with low axis drift.
Revised Reporting (Issuing Addenda and Amendments) in Pathology
Authors: Spiczka Amy , Waibel Liz , Garcia Edna , Kundu Iman , Kelly Melissa , Brown Ali 
Published: August 2020

Abstract

Objectives
The purpose of this study was to align the current experiences and best practices in revised reporting (issuing of addenda and amendments) in pathology. Pathology specialties explored in the survey include anatomic pathology, surgical pathology, cytopathology, and hematopathology.

Methods
The study used a cross-sectional design in which an online revised reporting survey was deployed to a large national sample represented by pathologists, pathology residents, pathology fellows, pathology managers, and laboratory directors.

Results
Qualitative and quantitative results from this survey highlight significant variation in standards for creating, issuing, and tracking quality indicators related to addenda and amendments. The most notable findings were a lack of standardization and the potential for widespread adoption of revised reporting best practices within and between pathology services.

Conclusions
Survey insight provides the potential for improving patient safety outcomes, engaging with consumers of our reports, providing a current state view of revised reporting, and assessing the attitudes of pathologists and laboratory professionals on how their individual approaches and team-based workflows achieve revised reports. The data generated from this survey will provide patient safety opportunities associated with accurate pathology reporting and will encourage further development of optimal pathology revised reporting guidelines.
Accurate and Reliable Diagnosis of Avascular Necrosis of the Femoral Head From Total Hip Arthroplasty Specimens Requires Pathologic Examination
Authors: Dermawan Josephine K , Goldblum Andrew , Reith John D , Kilpatrick Scott E 
Published: August 2020

AbstractObjectivesTo evaluate the necessity of pathologic examination for confirming the diagnosis of avascular necrosis (AVN).MethodsWe retrospectively reviewed consecutive nonfractured total hip arthroplasty cases (n = 1,722), comparing operative diagnoses and radiologic data with final histologic diagnoses, focusing specifically on AVN.ResultsAmong 199 histologically confirmed cases of AVN, 62 (31%) had a preoperative diagnosis of osteoarthritis/degenerative joint disease (OA/DJD); 58 of the latter patients had radiology reports, but only two (3%) documented AVN. Patients with AVN preoperatively diagnosed as OA/DJD were significantly older (mean, 65 years) than patients with AVN correctly diagnosed clinically (mean, 52 years; P &lt; .00001). Among 163 cases with a preoperative diagnosis of AVN, 26 (16%) were confirmed as OA/DJD; the radiology report incorrectly diagnosed AVN in 17 (65%) patients. These latter patients also were significantly older (mean, 60 years) than patients with AVN correctly diagnosed clinically (P = .0008). Patients with a preoperative clinical and/or radiologic diagnosis of AVN were more likely to be younger and have known AVN risk factors.ConclusionsAccurate and reliable diagnosis of AVN requires pathologic examination, especially among older patients without known risk factors. Prompt diagnosis may lead to behavioral changes in affected patients that reduce the risk of subsequent lesions.
L-Cysteine Containing Vitamin Supplement Which Prevents or Alleviates Alcohol-related Hangover Symptoms: Nausea, Headache, Stress and Anxiety
Authors: Eriksson C J Peter , Metsälä Markus , Möykkynen Tommi , Mäkisalo Heikki , Kärkkäinen Olli , Palmén Maria , Salminen Joonas E , Kauhanen Jussi 
Published: August 2020

AbstractAimsAlcohol-related hangover symptoms: nausea, headache, stress and anxiety cause globally considerable amount of health problems and economic losses. Many of these harmful effects are produced by alcohol and its metabolite, acetaldehyde, which also is a common ingredient in alcohol beverages. The aim of the present study is to investigate the effect of the amino acid L-cysteine on the alcohol/acetaldehyde related aftereffects.MethodsVoluntary healthy participants were recruited through advertisements. Volunteers had to have experience of hangover and/or headache. The hangover study was randomized, double-blind and placebo-controlled. Nineteen males randomly swallowed placebo and L-cysteine tablets. The alcohol dose was 1.5 g/kg, which was consumed during 3 h.ResultsThe primary results based on correlational analysis showed that L-cysteine prevents or alleviates hangover, nausea, headache, stress and anxiety. For hangover, nausea and headache the results were apparent with the L-cysteine dose of 1200 mg and for stress and anxiety already with the dose of 600 mg.ConclusionsL-cysteine would reduce the need of drinking the next day with no or less hangover symptoms: nausea, headache, stress and anxiety. Altogether, these effects of L-cysteine are unique and seem to have a future in preventing or alleviating these harmful symptoms as well as reducing the risk of alcohol addiction.
Phenomenal transparency and the transparency of subjecthood
Authors: Morris Kevin 
Published: August 2020

Abstract
According to phenomenal transparency, phenomenal concepts are transparent where a transparent concept is one that reveals the nature of that to which it refers. What is the connection between phenomenal transparency and our concept of a subject of experience? This paper focuses on a recent argument, due to Philip Goff, for thinking that phenomenal transparency entails transparency about subjecthood. The argument is premissed on the idea that subjecthood is related to specific phenomenal properties as a determinable of more specific determinates. I argue that the argument fails, which opens the door for one to endorse phenomenal transparency while denying transparency about the concept of a subject of experience. I draw out the consequences of this for certain versions of the combination problem for panpsychist metaphysics and moreover argue that rejecting the transparency of subjecthood does not undermine anti-physicalist arguments premissed on considerations relating to phenomenal transparency .
Two problems of fitting grief
Authors: Schönherr Julius 
Published: August 2020

Abstract
Recent years have seen a surge in philosophical work on the rationality of grief. Much of this research is premised on the idea that people tend to grieve much less than would be appropriate or, as it is often called, fitting. My goal in this paper is diagnostic, that is, to articulate two never properly distinguished, and indeed often conflated, arguments in favour of the purported discrepancy between experienced and fitting grief: a metaphysical and a psychological argument. According to the former, grief is rationalized entirely by facts about the past. And because the past is unchangeable, grief can be said to remain forever fitting. According to the latter argument, humans’ emotional resilience causes grief to diminish at a faster rate than would be fitting. Which of these problems we end up facing depends on relatively subtle variations in the characterization of the losses that render grief appropriate .
Offspring beg more toward larger females in a burying beetle
Authors: Ratz Tom , Stenson Sophie , Smiseth Per T 
Published: August 2020

Abstract
Offspring of many animals beg for food from parents. Begging is often costly, and offspring should seek to reduce such costs to maximize their returns on begging. Whenever multiple adults provide care for a joint brood, as in species where multiple females breed communally, offspring should beg toward the parent that provisions the most food. Here, we investigate whether larvae spend more time begging toward larger females in the burying beetle Nicrophorus vespilloides. Prior work on this species shows that larger females provision more food than smaller ones, suggesting that larvae would benefit by preferentially begging toward larger females. To test for such a preference, we provided experimental broods with a simultaneous choice between two dead females: a smaller and a larger one. Larvae spent more time begging toward larger females. We next examined the behavioral mechanism for why larvae begged more toward larger females. Larvae spent more time in close contact with larger females over smaller ones, whereas there was no evidence that larvae begged more when in close contact with larger females. Thus, larvae begged more toward the larger female simply as a consequence of spending more time close to larger females. Our findings have important implications for our understanding of parent–offspring communication by showing that offspring can choose between parents based on parental attributes, such as body size, reflecting how much food parents are likely to provision.