bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on High Efficiency and Low Destructive Manufacture Process of Complex Structure Honeycomb Core
Authors: Xiang Cao , Yujie Wang , Chao Sun , Xin Shen 
Published: June 2019

Abstract
With the development of modern aircraft, complex structure honeycomb core parts are widely used. As a kind of difficult machining material, it’s easy to destroy the surface quality of the parts during machining the honeycomb core parts because of the special structure. The article studies the technology to increase efficiency and reduce damage during the machining process of complex structure honeycomb core. The problem can be effectively solved by using proper clampings, proper cutting parameters and proper tool path interval.
The Effect of Annealing on Microstructure and Mechanical Properties of Selective Laser Melting AlSi10Mg
Authors: Zhang Changchun , Zhu Haihong , Qi Yang , Zeng Xiaoyan 
Published: June 2019

Abstract
The effect of annealing treatment on SLM AlSilOMg on microstructure and mechanical properties has been investigated. It is observed that, with the increase of the temperature, the melt pools gradually become blurred and completely disappear when the temperature rises to 320°C. The microhardness and strengths of as-built samples are the highest due to the solid solution strengthening together with grain refinement strengthening. After heat treatment, the microhardness and strengths all decrease due to the weakening of solid solution strengthening but the elongation increases.
Modeling and Analysis of Transverse Vibration of Traction Rope of High Speed Traction Elevator
Authors: Qi Xiujuan , Zhang Ruijun , He Qin 
Published: June 2019

Abstract
Based on continuum mechanics theory and considering the influence of external excitation on high-speed traction elevator wire rope, Hamlition principle is applied to establish the transverse vibration control equation of variable-length lifting wire rope, and Galerkin method is used to discretize the solution. Finally, the model is simulated by Matlab software, and the transverse vibration law of the wire rope and the influence of damping on the transverse vibration of the wire rope are analyzed. The results show that the transverse vibration strength of the wire rope is basically the same as that of the wire rope when there is no damp effect. Increasing the damp can reduce the transverse vibration strength of the wire rope.
Numerical Study on Tone Noise of Different Thickness Airfoils
Authors: Huanhuan Feng , Yong Liu , Qi Wang , Sen Zou 
Published: June 2019

Abstract
Based on the Lattice Boltzmann Method(LBM)-Large Eddy Simulation(LES), a direct numerical calculation is presented of tone noise generated by flow past symmetric NACA airfoils with different thickness and at a Reynolds number based on chord of Re = 2.0 × 105. The computation results indicate that the acoustic source of the airfoil mainly at region of trailing edge and the flow separation. For NACA series airfoils with different thicknesses of the same curvature, the increase of thickness could enlarge pressure fluctuation and produce larger scale of vortices. Noise sources are identified in the region of trailing edge and the flow separation. The sound pressure level spectrum analysis shows that the tone noise gradually disappears and the noise spectrum displays broadband features with the increases of airfoil thickness. The noise directivity shows that the sound pressure radiation around the airfoil characteristic the dipole acoustic field. In addition, data analysis shows that the generation of tone noise is closely related to the vortex shedding of the trailing edge of the airfoil.
Joint Optimization of Level of Repair Analysis and Civil Aircraft Inventory System Based on PSO Algorithm
Authors: Liu Yuchang , Feng Yunwen , Xue Xiaofeng , Lu Cheng 
Published: June 2019

Abstract
The traditional optimization approach for the level of repair analysis (LORA) of civil aircraft and inventory system allocation is to optimize repair level and spare parts allocation separately. But the joint cost of maintenance and inventory allocation policy will not be the necessarily optimal, due to the fact that the direct effect on the inventory system is neglected in the LORA process. Thus, in this paper, a joint optimization model for LORA and civil aircraft inventory system is constructed with the system total cost as the objective function and the fleet availability as the constraint. Next, the particle swarm optimization (PSO) algorithm is applied to solve the proposed multivariable nonlinear optimization model. Finally, some components of the landing gear system are selected as the examples, and through the comparison with the results from traditional sequence method and iterative algorithm, the proposed method is validated to be feasible and effective.
Effects of Riblet Shape of Non-smooth Surface on Aerodynamic Characteristics of Vehicle
Authors: Rong Liu , Yiwan Wu 
Published: June 2019

Abstract
To reduce the aerodynamic drag of the vehicle, three kinds of riblet shape non-smooth surfaces were arranged in the tail of the Motor Industry Research Association (MIRA) stepped-back vehicle mode. The shapes of the non-smooth riblet elements are triangular, circular and rectangular. Computational fluid dynamics (CFD) method was used for numerical analysis. To verify the effectiveness of the analysis method, the analysis result of the standard MIRA stepped-back vehicle mode was compared with wind tunnel test data. The tail-flow, pressure and turbulent kinetic energy of the MIRA stepped back vehicle modes, which were arranged with riblet elements, were analyzed. The effects of riblet shape of non-smooth surfaces on the reduction of vehicle’ aerodynamic drag were compared with each other. The simulation results show that the three kinds of non-smooth surfaces have a good effect on drag reduction by reducing the negative pressure in the tail zone of the model, reduce the turbulent kinetic energy and reduce energy dissipation. The circular non-smooth surface is better than the other, with drag reduction effect of 5.53%.
Influence of mouse defective zona pellucida in folliculogenesis on apoptosis of granulosa cells and developmental competence of oocytes†
Authors: Wang Yan , Lv Chao , Huang Hua-Lin , Zeng Ming-Hua , Yi Da-Jing , Tan Hang-Jing , Peng Tian-Liu , Yu Wen-Xian , Deng Hong-Wen , Xiao Hong-Mei 
Published: June 2019

AbstractZona pellucida (ZP), which enwraps the oocyte during folliculogenesis, initially forms in the primary follicle and plays an important role in female fertility. Here, we investigated a mouse strain (“mutant mice” for short) carrying two types of ZP defects in folliculogenesis, i.e., ZP thinned (but intact) and ZP cracked, caused by targeted mutation in the Zp1 gene. Using this mutant mouse strain and wild-type mouse as control, we studied the effects of the ZP defects on the development of oocytes and granulosa cells during folliculogenesis. For each ZP defect, we examined the morphology of transzonal projections and apoptosis of granulosa cells in the corresponding growing follicles, as well as the morphology of corresponding ovulated eggs and their abilities to develop into viable individuals. Our results suggested that ZP integrity rather than thickness or porosity is crucial for preventing the ectopia of granulosa cells, maintaining adequate routine bilateral signaling between oocyte and surrounding granulosa cells, and thus for ensuring the survival of granulosa cells and the establishment of the full developmental competence of oocytes. This is the first study to elucidate the effects of different degrees of ZP defects caused by the same gene mutation, on the apoptosis of granulosa cells and developmental competence of oocytes, and to explore the potential mechanisms underlying these effects.
Bayesian jackknife empirical likelihood
Authors: Cheng Y , Zhao Y 
Published: June 2019

Summary
Empirical likelihood is a very powerful nonparametric tool that does not require any distributional assumptions. Lazar (2003) showed that in Bayesian inference, if one replaces the usual likelihood with the empirical likelihood, then posterior inference is still valid when the functional of interest is a smooth function of the posterior mean. However, it is not clear whether similar conclusions can be obtained for parameters defined in terms of $U$-statistics. We propose the so-called Bayesian jackknife empirical likelihood, which replaces the likelihood component with the jackknife empirical likelihood. We show, both theoretically and empirically, the validity of the proposed method as a general tool for Bayesian inference. Empirical analysis shows that the small-sample performance of the proposed method is better than its frequentist counterpart. Analysis of a case-control study for pancreatic cancer is used to illustrate the new approach.
Average Weighted Accuracy: Pragmatic Analysis for a Rapid Diagnostics in Categorizing Acute Lung Infections (RADICAL) Study
Authors: Liu Ying , Tsalik Ephraim L , Jiang Yunyun , Ko Emily R , Woods Christopher W , Henao Ricardo , Evans Scott R 
Published: June 2019

Abstract
Patient management relies on diagnostic information to identify appropriate treatment. Standard evaluations of diagnostic tests consist of estimating sensitivity, specificity, positive/negative predictive values, likelihood ratios, and accuracy. Although useful, these metrics do not convey the tests’ clinical value, which is critical to informing decision-making. Full appreciation of the clinical impact of a diagnostic test requires analyses that integrate sensitivity and specificity, account for the disease prevalence within the population of test application, and account for the relative importance of specificity vs sensitivity by considering the clinical implications of false-positive and false-negative results. We developed average weighted accuracy (AWA), representing a pragmatic metric of diagnostic yield or global utility of a diagnostic test. AWA can be used to compare test alternatives, even across different studies. We apply the AWA methodology to evaluate a new diagnostic test developed in the Rapid Diagnostics in Categorizing Acute Lung Infections (RADICAL) study.
The forms, functions, and varieties of weak(ened) judicial review
Authors: Dixon Rosalind 
Published: June 2019

Abstract
The concept of “weak” judicial review is now a core concept in comparative constitutional analysis. Yet the relative weakness of judicial review will depend on a variety of factors, including the availability of formal mechanisms for legislative override or limiting courts’ jurisdiction, the difficulty of constitutional amendment, the scope of judicial review both in first- and second-look cases, and the actual practice of legislators and judges in a jurisdiction. The strength of judicial review is therefore not a true binary but rather a concept that spans multiple dimensions and a question of degree rather than kind. The desirability of weak as opposed to strong or even super-strong forms of review will likewise depend on a range of factors, which can and do vary across time and different contexts. This article thus aims to unpack the concept of weak-form review with a view to sharpening our understanding of both its internal complexity and relationship to questions of broader political context.
Dual-Cursor: Improving User Performance and Perceived Usability for Cursor-Based Text Entry on TV Using Remote Control
Authors: Luo Shijian , Hu Yi 
Published: June 2019

Abstract

Entering text with a general five-key TV remote is a laborious task. A strategy for entering text with two interconnected cursors is proposed, whereby a secondary cursor is employed to maneuver the main cursor through fast-tracks. The main cursor is maneuvered in a 2D full-size onscreen keyboard space, whereas the sub-cursor moves among all predictive candidates in a 1D subspace. Each cursor is operated by a specific interaction method, and the movement of either must be mapped from one to the other. Compared to single-cursor methods, the combination of the main cursor and the sub-cursor operations usually results in fewer manual loadings, even when the target character is out of the prediction list range. A computer simulation based on a corpus of 57 258 multimedia titles (in Chinese) demonstrated that the keystrokes per character, powered by a dual-cursor technique, could be predicted to be reduced by 38.6–69.9% with very few predictive candidates for various keyboard layouts (compared with those of conventional non-predictive method). The keyboard layout and the number of candidates were further investigated by means of a usability test. The results revealed that with only 10 min of practice, novice users could achieve a mean text entry speed of 33.3, 29.5 and 22.8 characters per minute for QWERTY, alphabetic square, and alphabetic two-row layouts, respectively, which is 31.6%, 14.3% and 67.6% faster than the corresponding conventional input method, and is 12.7%, 6.9% and 25.0% faster than the current version of popup dialog method. The dual-cursor can significantly improve perceived usability and offers the potential to be applied to numerous other cursor-based text entry contexts.

RESEARCH HIGHLIGHTS
A new interaction strategy for TV input with two interconnected cursors. This strategy employs long-pressing for jumping around predicted candidates and short-pressing for navigating through keyboard keys. The number of keystrokes could be predicted to be reduced by 38.6–69.9% when compared with that of the conventional non-predictive input method for various keyboard layouts. Few predicted candidates were required to achieve a substantial decrement of keystrokes. The user experiment showed that novice users’ TV input speed could be substantially increased with dual-cursor.
Clinical impact of rapid susceptibility testing on MHR-SIR directly from blood cultures
Authors: Pilmis Benoît , Thy Michael , Diep Julien , Krob Sophie , Périllaud Claire , Couzigou Carine , Vidal Barbara , Mizrahi Assaf , Lourtet-Hascoët Julie , Le Monnier Alban , Nguyen Van Jean-Claude 
Published: June 2019

AbstractBackgroundIn a previous study, we demonstrated that rapid antibiotic susceptibility tests (ASTs) can be performed directly on blood culture samples tested on Mueller–Hinton Rapid agar (MHR-SIR) with a time delay of 6–8 h.ObjectivesUsing this rapid disc diffusion method, we analysed the clinical impact associated with rapid reporting of results in our hospital setting.MethodsAll patients with bloodstream infections (BSIs) related to Enterobacteriaceae or Staphylococcus aureus were prospectively included in the study. The rapid ASTs were performed by incubation of positive blood cultures on MHR-SIR for 6–8 h by direct inoculation according to BSAC recommendations.ResultsOne hundred and sixty-seven patients with BSIs were included as MHR-guided adaptation therapy cases. Eighty percent had Enterobacteriaceae-related BSIs, of which 12 (9%) were ESBL producers and 20% were S. aureus-related BSIs. A urinary or intra-abdominal infection was observed in 44.3% and 19.8%, respectively, of Enterobacteriaceae-related infections. The most frequent sources of infections for S. aureus BSIs were cutaneous and endovascular, in 43% and 23% of cases, respectively. Forty-four percent of the patients benefited from therapeutic modification according to the results of the MHR-SIR AST. Thus, empirical antibiotic therapy was modified by using antibiotic therapy that had too wide a spectrum or was unsuitable in 26% and 18% of cases, respectively. Compared with the 24 h required for the reference method, the median length of time to provision of susceptibility test results by MHR-SIR was 7 h.ConclusionsThis study showed a significant time saving (17 h) on the appropriateness of antibiotic prescription and demonstrated a significant impact regarding the choice and reduction of the spectrum of antibiotic therapy.
Outcomes after Surgery for Early Stage Breast Cancer in Women Staged With Preoperative Breast Magnetic Resonance Imaging According to Breast Tissue Density
Authors: Faermann Renata , Weidenfeld Jonathan , Chepelev Leonid , Kendal Wayne , Verma Raman , Scott-Moncrieff Andrew , Peddle Susan , Doherty Geoff , Lau Jackie , Ramsay Tim , Arnaout Angel , Lamb Leslie , Watters James M , Seely Jean M 
Published: June 2019

Abstract

Purpose
To determine surgical outcomes and breast cancer disease-free survival outcomes of women with early stage breast cancer with and without use of preoperative breast MRI according to breast tissue density.

Methods
Women with early stage breast cancer diagnosed from 2004 to 2009 were classified into 2 groups: 1) those with dense and heterogeneously dense breasts (DB); 2) those with nondense breasts (NDB) (scattered fibroglandular and fatty replaced tissue). The 2 groups were reviewed to determine who underwent preoperative MRI. Breast tissue density was determined with mammography according to ACR BI-RADS. Patients were compared according to tumor size, grade, stage, and treatment. Survival analysis was performed using Kaplan-Meier estimates.

Results
In total, 261 patients with mean follow-up of 85 months (25–133) were included: 156 DB and 105 NDB. Disease-free survival outcomes were better in the DB group in patients with MRI than in those without MRI: patients with MRI had significantly fewer local recurrences (P &lt; 0.016) and metachronous contralateral breast cancers (P &lt; 0.001), but this was not the case in the NDB group. Mastectomies were higher in the DB group with preoperative MRI than in those without MRI (P &lt; 0.01), as it was in the NDB group (P &gt; 0.05).

Conclusions
Preoperative breast MRI was associated with reduced local recurrence and metachronous contralateral cancers in the DB group, but not in the NDB group; however, the DB patients with MRI had higher mastectomy rates.
Screening Guidelines and Supplemental Screening Tools: Assessment of the Adequacy of Patient–Provider Discussions
Authors: Aminololama-Shakeri Shadi , Soo Mary Scott , Grimm Lars J , Destounis Stamatia 
Published: June 2019

Abstract

Purpose
To assess breast imaging radiologists’ perceptions of the adequacy of provider–patient discussions regarding the benefits and risks of screening mammography and supplemental screening in women with elevated risk and dense breasts.

Methods
A 36-item questionnaire developed by the Society of Breast Imaging Patient Care and Delivery Task Force was distributed electronically to Society of Breast Imaging members to evaluate patient communication, education, and screening practices. Data from the 11 items specifically pertaining to screening practices were analyzed.

Results
The response rate was 14% (275/1992). Seventy-four percent of survey respondents perceived provider–patient discussions regarding mammography screening guidelines as inadequate, and they agreed that provider–patient discussions regarding screening guidelines (82%) and supplemental screening for increased breast density (74%) should be standardized. Only 38% indicated that mammography screening guidelines are officially endorsed by their institution. Similarly, 37% reported that recommendations were up to the primary provider. Although most respondents include information about breast density in lay letters (73%) and radiology reports (89%), many feel that further patient education regarding breast density, supplemental screening, risk assessment, and screening guidelines should be performed by radiologists, and they are willing to provide additional patient education in these areas in practice.

Conclusions
Survey respondents perceived current provider–patient discussions about the risks and benefits of breast cancer mammography screening and supplemental screening as inadequate and felt that standards should be developed. Respondents reported a willingness to take on patient education as part of their daily practice. These findings could inform future initiatives for radiologists to contribute to enhancing provider–patient education.
Exile at Home: Jewish Amateur Photography under National Socialism, 1933–1939
Authors: Ashkenazi Ofer 
Published: June 2019

Abstract
Between 1933 and 1939, Ludwig Simon and his family avidly photographed their daily life. At first glance, their photo albums contain undistinguishable documentation of conventional family routines, including leisure activities at home, encounters with relatives, and vacations away from the city. Yet a closer look shows that many of the photographs in this collection can be read as contemplative responses to the intensifying exclusion of Jews in the Third Reich. The article focuses on photographs that were (repeatedly) taken in two major locations: on the Alps, during vacations, and by the family home in Bingen am Rhein, which Ludwig left when he moved to Berlin in the 1920s. I argue that these photographs manifest an enduring endeavour to reflect critically on the tensions between Jewish belonging and estrangement in the new Germany. Constantly engaged in a dialogue with the (private and public) visual memory of the time—from restaging photographs of previous years to appropriating the visual iconography of German nationalism—the Simon family photographers recurrently negotiated the perspective of the outcasts at home. In analysing these strategies of photography, and of the arrangement of individual photographs within the collection, this article reads them within the paradigm of exile photography. As the Simon family collection demonstrates, the extension of this paradigm to cases of ‘exile-at-home’ enriches our understanding of the German-Jewish experience under National Socialist rule.
A new line on the wide binary test of gravity
Authors: Banik Indranil 
Published: June 2019

ABSTRACT
The relative velocity distribution of wide binary (WB) stars is sensitive to the law of gravity at the low accelerations typical of galactic outskirts. I consider the feasibility of this wide binary test using the ‘line velocity’ method. This involves considering only the velocity components along the direction within the sky plane orthogonal to the systemic proper motion of each WB. I apply this technique to the WB sample of Hernandez et al., carefully accounting for large-angle effects at one order beyond leading. Based on Monte Carlo trials, the uncertainty in the one-dimensional velocity dispersion is ≈100 m s−1 when using sky-projected relative velocities. Using line velocities reduces this to ≈30 m s−1 because these are much less affected by distance uncertainties. My analysis does not support the Hernandez et al. claim of a clear departure from Newtonian dynamics beyond a radius of ≈10 kAU, partly because I use 2σ outlier rejection to clean their sample first. None the less, the uncertainties are small enough that existing WB data are nearly sufficient to distinguish Newtonian dynamics from Modified Newtonian Dynamics. I estimate that ≈1000 WB systems will be required for this purpose if using only line velocities. In addition to a larger sample, it will also be important to control for systematics like undetected companions and moving groups. This could be done statistically. The contamination can be minimized by considering a narrow theoretically motivated range of parameters and focusing on how different theories predict different proportions of WBs in this region.