635 research outputs found
Replication Data for: The Power of the Anti-corruption Campaign: Evidence from Cigarette and Alcohol Consumptions in China
No full textLittle is known about the effects of the anti-corruption campaign on individual’s consumption behavior. Using the anti-corruption campaign launched in China as a quasi-natural experiment, this study investigates the causal effect of the anti-corruption campaign (punishment) on cigarette and alcohol consumptions between government officials and other individuals. We provide the first and direct evidence that demonstrates the effectiveness of the campaign with its significant and negative effect on the potential consumptions of government officials. Notably, these effects are less pronounced among individuals nearing retirement, presumably due to the diminished prospects for promotions relative to other individuals
sj-docx-1-hss-10.1177_15563316231200862 – Supplemental material for Osteolytic Schwannoma in an Older Patient With Lumbar Degenerative Disk Disease: A Case Report
No full textSupplemental material, sj-docx-1-hss-10.1177_15563316231200862 for Osteolytic Schwannoma in an Older Patient With Lumbar Degenerative Disk Disease: A Case Report by Changjun Chen, Qingwei Ma, Yubin Qi, Yingguang Wu, Jingkun Li, Yanjun Ren and Yun Yang in HSS Journal®</p
Acoustic manipulation of sound with soft material-based actuators
No full textThis thesis describes a unique parabolic acoustic manipulator with an inflatable structure, which has high gain and directivity. We created a morphable elastomeric reflecting surface with a diameter of 14 cm (6 in). Applying vacuum deforms the device into a concave structure, which provides directional amplification of incoming acoustic waves. In addition, the author characterized the impedance of the soft material employed in the acoustic reflector, Ecoflex 00-10, in an impedance tube. Ecoflex 00-10 has a measured reflection coefficient of approximately 0.9 at frequencies ranging from 500 Hz to 5000 Hz. This new characterization suggests this class of silicone-based elastomers is capable of advanced morphable devices to manipulate sound. Simulations also demonstrate that the soft reflecting surface is capable of transformation into a set of desired parabolic shapes between an initial planar geometry (neutral position) and a configuration with maximum curvature. With an applied vacuum, the membrane reaches its maximum deformation limited by the aluminum housing. At this stage of actuation, experimental results show the deformed membrane has similar gain and directionality (polar response) as rigid parabolic reflectors. This type of system might find future uses for adjustable parabolic microphones and long-range communication devices.M.S.Includes bibliographical referencesby Yanjun Wan
Unexpected enrichment of thallium and its geochemical behaviors in soils impacted by historically industrial activities using lead‐zinc carbonate minerals
No full text: Thallium is a trace metal with severe toxicity. Contamination of thallium (Tl) generated by steel and non-ferrous metals industry is gaining growing concern worldwide. However, little is known on Tl contamination owing to industrial activities using carbonate minerals. This study revealed abundant geochemical mobile/bioavailable Tl (> 65.7%, in average; mostly in oxidizable fraction) in soils from a carbonate-hosted PbZn ore utilizing area in China for the first time. Unexpected Tl enrichment was observed in soil accompanying with 3655, 7820, 100.1, 27.3 and 29.9 mg/kg (in average) of Pb, Zn, As, Cd and Sb, respectively. Characterization using X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analysis further confirmed that historical industrial activities impose anthropogenic catastrophic effects on the local agricultural soil system. The ecological and health risk assessment of heavy metal(loid)s in soils proclaimed serious potential non-carcinogenic risks of Pb and V to adults, and Pb, Tl and As to children. Sequential extraction analysis showed that Tl, as well as Pb, Zn, Mn, Co, and Cd, mainly existed in the mobile fractions (exchangeable/acid-extractable, reducible and oxidizable), indicating an ecological risk of biological accumulation of multiple metal(loid)s in this area. These findings provide a theoretical basis for taking appropriate remediation measures in order to ensure safety of soils in such industrial areas likewise
AudioEar: Single-View Ear Reconstruction for Personalized Spatial Audio
No full textAbstract
We introduce AudioEar3D, a high-quality 3D ear dataset consisting of 112 point cloud ear scans with RGB images, to benchmark the ear reconstruction task. We further collect a 2D ear dataset composed of 2,000 images, each one with manual annotation of occlusion and 55 landmarks, named AudioEar2D. To our knowledge, both datasets have the largest scale and best quality of their kinds for public use.
Usage
The code is publicly available at https://github.com/seanywang0408/AudioEar.
The file organization of AudioEar3D is as following:
AudioEar3D
├── 001
# left ear data
├── left.jpg # processed RGB image of left ear
├── left.ply # processed point cloud of left ear in canonical pose (frontal view is negative-X and upper view is positive-Z)
├── left.json # 56 landmark annotations of image
├── mask_left.jpg # mask generated by the outer landmarks
├── masked_left.jpg # exclude background in left.jpg using mask_left.jpg
├── masked_left.png # exclude background in left.jpg using mask_left.jpg, but with four channels of RGB-A
# right ear data
├── right.jpg
...
├── masked_right.png
├── 002
...
├── 056
The file organization of AudioEar2D is as following:
AudioEar2D
├── 00000.png # processed ear image
├── 00000.json # landmark annotations
...
├── 69985.png # the index is aligned with the data source FFHQ.
├── 69985.json
Citation
If you find this project useful, currently please cite the paper as:
Xiaoyang Huang, Yanjun Wang, Yang Liu, Bingbing Ni, Wenjun Zhang, Jinxian Liu, Teng Li. "AudioEar: Single-View Ear Reconstruction for Personalized Spatial Audio". arXiv preprint arXiv:2301.12613, 2023.
or using bibtex:
@article{huang2023audioear,
title={AudioEar: Single-View Ear Reconstruction for Personalized Spatial Audio},
author={Huang, Xiaoyang and Wang, Yanjun and Liu, Yang and Ni, Bingbing and Zhang Wenjun and Liu Jinxian and Li, Teng},
journal={arXiv preprint arXiv:2301.12613},
year={2023}
}
License
The dataset is licensed under Creative Commons Attribution 4.0 International (CC BY 4.0).
The code is under Apache-2.0 License.
Mirror Link
We recommend users to download the data from Zenodo official link. However, if you find any downloading problem, you can also use this mirror link from Google Drive.
Changelog
v1.0: Initial repository of AudioEar3D and AudioEar2D
Balancing the sustainable component of ethylene-vinyl acetate for achieved better compatibility improvement of wax-based warm mix additives in bitumen
No full textThe ethylene-vinyl acetate (EVA) polymers are always doped into waxy bitumen to inhibit network of wax crystals in bitumen. However, the compatibility improvement behaviors between wax-based warm mix (WWM) additives and bitumen by EVA are not clear, and the sustainable components of EVA for corresponding WWM additives to achieve better compatibility improvement are also not determined. This paper investigated compatibility improvement behaviors between commonly used WWM additives and bitumen after the addition of EVA to obtain sustainable components of EVA through experimental method of activation energy of viscous flow (AEVF) and density function theory-molecular dynamic (DFT-MD) calculations. The results show that the repulsions between the end of main-chain with highest electronegativity in WWM additives and polar molecules of EVA can alleviate the aggregation behaviors of WWM additives and EVA displays the best and worst compatibility improvements for additives with shortest and longest carbon chains, respectively. The dispersed asphaltenes combined with EVA can form the composite wax inhibitors (WIs) systems to increase diffusion coefficient and reduce percentage increment values of cohesive energy density (CED) to further disrupt ordered degree of WWM additives. On this basis, the sustainable carbon numbers of main-chain for EVA that are slightly less than average carbon numbers of WWM additives will help to better improve the compatibility of WWM additives. This investigation can provide the inspiration on how to choose the sustainable components of EVA to achieve high-efficiency compatibility improvement for corresponding warm mix asphalts (WMAs) with different average carbon numbers.Pavement Engineerin
Imaging the spread of reversible brain inactivations using fluorescent muscimol
No full textAuthor manuscript. Published in final edited form as:
J Neurosci Methods. 2008 June 15; 171(1): 30–38
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Understanding Visitors’ Cognitive Appraisals at Meteorological Destination
No full text1) Hanqin Qiu
Distinguished Professor, College of Tourism and Service Management, Nankai University. Her research interests are tourist consumer behavior and tourism development and policy.
2) Xiaowei Lei
Postgraduate Student, College of Tourism and Service Management, Nankai University. Her research interests are meteorological tourism, consumer behavior and tourism destination marketing.
3) Yujia Chen
Postdoctoral Fellow, College of Tourism and Service Management, Nankai University. Her research interests are consumer behavior and decision-making, service failure and service recovery.
4) Yanjun Chen(corresponding author)
Postgraduate Student, College of Tourism and Service Management, Nankai University. Her research interests are meteorological tourism, consumer behavior and tourism destination marketing.While the uncertainty is increasingly becoming a challenge in the supply of meteorological landscape for destinations, little is known about the emotional experiences and behavioural tendencies of visitors triggered by this uncertainty under landscape viewing. Grounded upon cognitive appraisal theory, this study conducted in-depth interviews with 31 visitors who had experience of seeing the meteorological landscape to solicit their perceptions and appraisals of uncertainty. Results revealed that the uncertainty influenced visitors’ cognitive appraisal process, including cognitive appraisal, emotional experiences, coping strategies, and behavioural tendency in the future. Specifically, five positive and four negative emotions, and two coping strategies were identified. In addition, four types of revisit intention were also discussed and summarised. Interestingly, this study found that positive emotions didn’t always trigger positive behavioural tendencies, while negative emotions may also contribute positively to behavioural tendencies. Theoretical and practical implications for destination management are also offered
Essays on food consumption, income inequality, and health-related issues in China
No full textThis cumulative dissertation presents five contributions that attempt to shed light on the issues regarding food consumption, income inequality and health in China. Empirical results in chapter 2 indicate that there exist substantial differences in food consumption across various income classes, meanwhile, the projected food consumption under different income distribution patterns shows that changes in income distribution have significant influences on food consumption. Chapter 3 reveals that there exists significant income inequality to the disadvantage of ethnic minorities for the full, female, and urban samples, and depending on the instrument also for the rural sample. Nevertheless, our results for these samples show specific returns to education for ethnic minorities, which implies that a portion of the income gap can be overcome with additional education. In chapter 4, employing a structural equation model for alcohol and cigarettes consumption, the empirical results indicate that alcohol and cigarettes are complementary goods for men in China; when the demand for alcohol (cigarettes) increases, the demand for cigarettes (alcohol) will also increase, ceteris paribus. In chapter 5, accounting for the endogeneity of education in unhealthy consumption equations, we find that education exerts a negative impact on unhealthy consumption like smoking and binge drinking, and an additional year of education can counteract intergenerational persistence of smoking and binge drinking from the father, but that it has no significant impact on intergenerational persistence from the mother. The results in chapter 6 suggest that body weight and the probability of overweight initiation increase with income but at a decreasing rate; while the probability of overweight cessation decreases with income but at an increasing rate. Our findings conclude that in contrast to developed countries, low-income individuals are less likely to be overweight in a transition country like China
From aircraft tracking data to network delay model: A data-driven approach considering en-route congestion
No full textEn-route congestion causes delays in air traffic networks and will become more prominent as air traffic demand will continue to increase yet airspace volume cannot grow. However, most existing studies on flight delay modeling do not consider en-route congestion explicitly. In this study, we propose a new flight delay model, Multi-layer Air Traffic Network Delay (MATND) model, to capture the impact of en-route congestion on flight delays over an air traffic network. This model is developed by a data-driven approach, taking aircraft tracking data and flight schedules as inputs to characterize a national air traffic network, as well as a system-level model approach, modeling the delay process based on queueing theory. The two approaches combined make the network delay model a close representation of reality and easy-to-implement for what-if scenario analysis. The proposed MATND model includes 1) a data-driven method to learn a network composed of airports, en-route congestion points, and air corridors from aircraft tracking data, 2) a stochastic and dynamic queuing network model to calculate flight delays and track their propagation at both airports and in en-route congestion areas, in which the delays are computed via a space–time decomposition method. Using one month of historical aircraft tracking data over China's air traffic network, MATND is tested and shows to give an accurate quantification of delays of the national air traffic network. “What-if” scenario analyses are conducted to demonstrate how the proposed model can be used for the evaluation of air traffic network improvement strategies, where the manipulation of reality at such a scale is impossible. Results show that MATND is computationally efficient, well suited for evaluating the impact of policy alternatives on system-wide delay at a macroscopic level.Air Transport & Operation
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