21 results on '"Baoxin Zhao"'
Search Results
2. COMO: Efficient Deep Neural Networks Expansion With COnvolutional MaxOut
- Author
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Zhishan Guo, Cheng-Zhong Xu, Haoyi Xiong, Baoxin Zhao, Dejing Dou, and Jiang Bian
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Computer science ,business.industry ,Deep learning ,Feature selection ,02 engineering and technology ,Convolutional neural network ,Computer Science Applications ,Convolution ,Reduction (complexity) ,Transformation (function) ,Signal Processing ,0202 electrical engineering, electronic engineering, information engineering ,Media Technology ,Feature (machine learning) ,Benchmark (computing) ,020201 artificial intelligence & image processing ,Artificial intelligence ,Electrical and Electronic Engineering ,business ,Algorithm - Abstract
In this paper, we extend the classic MaxOut strategy, originally designed for Multiple Layer Preceptors (MLPs), into CO nvolutional M ax O ut (COMO) — a new strategy making deep convolutional neural networks wider with parameter efficiency. Compared to the existing solutions, such as ResNeXt for ResNet or Inception for VGG-alikes, COMO works well on both linear architectures and the ones with skipped connections and residual blocks. More specifically, COMO adopts a novel split-transform-merge paradigm that extends the layers with spatial resolution reduction into multiple parallel splits. For the layer with COMO, each split passes the input feature maps through a 4D convolution operator with independent batch normalization operators for transformation, then merge into the aggregated output of the original sizes through max-pooling . Such a strategy is expected to tackle the potential classification accuracy degradation due to the spatial resolution reduction, by incorporating the multiple splits and max-pooling-based feature selection. Our experiment using a wide range of deep architectures shows that COMO can significantly improve the classification accuracy of ResNet/VGG-alike networks based on a large number of benchmark datasets. COMO further outperforms the existing solutions, e.g., Inceptions, ResNeXts, SE-ResNet, and Xception, that make networks wider, and it dominates in the comparison of accuracy versus parameter sizes.
- Published
- 2021
3. Association between long-term exposure to Sulfur dioxide pollution and hypertension incidence in northern China: a 12-year cohort study
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Mengfan Yan, Pengyi Guo, Xuejun Li, Liwen Zhang, Yamin Liu, Xi Chen, Guang-Hui Dong, Naijun Tang, Chaokang Li, Tong Wang, Jie Chen, Zhao Ma, Hui Wu, Anqi Shan, Yu Zhang, Xueli Yang, and Baoxin Zhao
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Adult ,Pollution ,China ,Health, Toxicology and Mutagenesis ,media_common.quotation_subject ,Nitrogen Dioxide ,010501 environmental sciences ,complex mixtures ,01 natural sciences ,Cohort Studies ,chemistry.chemical_compound ,Air Pollution ,Environmental health ,Humans ,Sulfur Dioxide ,Environmental Chemistry ,Medicine ,Sulfur dioxide ,Retrospective Studies ,0105 earth and related environmental sciences ,media_common ,Air Pollutants ,business.industry ,Incidence ,Incidence (epidemiology) ,Hazard ratio ,Retrospective cohort study ,Environmental Exposure ,General Medicine ,Middle Aged ,Confidence interval ,chemistry ,Hypertension ,Cohort ,Particulate Matter ,business ,Cohort study - Abstract
Several studies have researched the short-term effect of sulfur dioxide (SO2) exposure on hypertension. However, no evidence has provided the relationship between long-term high pollution exposure of SO2 and morbidity of hypertension in cohort studies in China. This retrospective cohort study aimed to evaluate this association. We used Cox proportional hazards regression models to examine the hazard ratios (HR) for hypertension risks from 1998 to 2009 associated with accumulative exposure of air SO2 among adults in northern China. Annual average concentrations of sulfur dioxide (SO2) were obtained from 15 local environmental monitoring centers. Hypertension was identified according to self-reported diagnostic time and treatment for hypertension with anti-hypertensive medication. Among 37,386 participants, 2619 new cases of hypertension were identified during 426,334 person-years. In the fully adjusted model, HR and 95% confidence interval (CI) of hypertension incidence for each 10 μg/m3 increase in SO2 were 1.176 (1.163 and 1.189). Results from stratified analyses suggested that effects of SO2 on hypertension morbidity were more pronounced in participants
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- 2020
4. Long-term exposure to ambient PM2.5 and stroke mortality among urban residents in northern China
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Baoxin Zhao, Xuejun Li, Fangchao Liu, Yamin Liu, Zhao Ma, Anqi Shan, Jie Chen, Mengfan Yan, Dongfeng Gu, Tong Wang, Guang-Hui Dong, Fengchao Liang, Liwen Zhang, Xi Chen, Naijun Tang, Yang Liu, Hui Wu, and Xueli Yang
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Adult ,Male ,China ,Drug-Related Side Effects and Adverse Reactions ,Urban Population ,Satellite-based model ,Health, Toxicology and Mutagenesis ,0211 other engineering and technologies ,Context (language use) ,02 engineering and technology ,010501 environmental sciences ,Stroke mortality ,01 natural sciences ,complex mixtures ,Article ,Environmental pollution ,Cohort Studies ,Air Pollution ,Humans ,Medicine ,GE1-350 ,0105 earth and related environmental sciences ,Air Pollutants ,021110 strategic, defence & security studies ,business.industry ,Proportional hazards model ,Long-term exposure ,Hazard ratio ,Temperature ,Public Health, Environmental and Occupational Health ,Regression analysis ,Population-based cohort ,Environmental Exposure ,General Medicine ,Pollution ,Stroke ,Temperature variation ,Environmental sciences ,Individual risk factors ,TD172-193.5 ,Cohort ,Female ,Particulate Matter ,business ,Demography - Abstract
Evidence is still limited for the role of long-term PM2.5 exposure in cerebrovascular diseases among residents in high pollution regions. The study is aimed to investigate the long-term effects of PM2.5 exposure on stroke mortality, and further explore the effect modification of temperature variation on the PM2.5-mortality association in northern China. Based on a cohort data with an average follow-up of 9.8 years among 38,435 urban adults, high-resolution estimates of PM2.5 derived from a satellite-based model were assigned to each participant. A Cox regression model with time-varying exposures and strata of geographic regions was employed to assess the risks of stroke mortality associated with PM2.5, after adjusting for individual risk factors. The cross-product term of PM2.5 exposure and annual temperature range was further added into the regression model to test whether the long-term temperature variation would modify the association of PM2.5 with stroke mortality. Among the study participants, the annual mean level of PM2.5 concentration was 66.3 μg/m3 ranging from 39.0 μg/m3 to 100.6 μg/m3. For each 10 μg/m3 increment in PM2.5, the hazard ratio (HR) was 1.31 (95% CI: 1.04–1.65) for stroke mortality after multivariable adjustment. In addition, the HRs of PM2.5 decreased gradually as the increase of annual temperature range with the HRs of 1.95 (95% CI: 1.36–2.81), 1.53 (95% CI: 1.06–2.22), and 1.11 (95% CI: 0.75–1.63) in the low, middle, and high group of annual temperature range, respectively. The findings provided further evidence of long-term PM2.5 exposure on stroke mortality in high-exposure settings such as northern China, and also highlighted the view that assessing the adverse health effects of air pollution might not ignore the role of temperature variations in the context of climate change.
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- 2021
5. SecureGBM: Secure Multi-Party Gradient Boosting
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Licheng Wang, Shengwen Yang, Jun Huan, Zhi Feng, Liping Liu, Sijia Yang, Haoyi Xiong, Baoxin Zhao, Zeyu Chen, and Chuanyuan Song
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FOS: Computer and information sciences ,Computer Science - Machine Learning ,Training set ,Theoretical computer science ,business.industry ,Computer science ,Inference ,Homomorphic encryption ,Machine Learning (stat.ML) ,02 engineering and technology ,010501 environmental sciences ,Encryption ,01 natural sciences ,Machine Learning (cs.LG) ,Identification (information) ,Tree (data structure) ,Statistics - Machine Learning ,0202 electrical engineering, electronic engineering, information engineering ,Benchmark (computing) ,Key (cryptography) ,020201 artificial intelligence & image processing ,Gradient boosting ,business ,0105 earth and related environmental sciences - Abstract
Federated machine learning systems have been widely used to facilitate the joint data analytics across the distributed datasets owned by the different parties that do not trust each others. In this paper, we proposed a novel Gradient Boosting Machines (GBM) framework SecureGBM built-up with a multi-party computation model based on semi-homomorphic encryption, where every involved party can jointly obtain a shared Gradient Boosting machines model while protecting their own data from the potential privacy leakage and inferential identification. More specific, our work focused on a specific "dual--party" secure learning scenario based on two parties -- both party own an unique view (i.e., attributes or features) to the sample group of samples while only one party owns the labels. In such scenario, feature and label data are not allowed to share with others. To achieve the above goal, we firstly extent -- LightGBM -- a well known implementation of tree-based GBM through covering its key operations for training and inference with SEAL homomorphic encryption schemes. However, the performance of such re-implementation is significantly bottle-necked by the explosive inflation of the communication payloads, based on ciphertexts subject to the increasing length of plaintexts. In this way, we then proposed to use stochastic approximation techniques to reduced the communication payloads while accelerating the overall training procedure in a statistical manner. Our experiments using the real-world data showed that SecureGBM can well secure the communication and computation of LightGBM training and inference procedures for the both parties while only losing less than 3% AUC, using the same number of iterations for gradient boosting, on a wide range of benchmark datasets., The first two authors contributed equally to the manuscript. The paper has been accepted for publication in IEEE BigData 2019
- Published
- 2019
6. Associations between the incidence and mortality rates of type 2 diabetes mellitus and long-term exposure to ambient air pollution: A 12-year cohort study in northern China
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Yu Zhang, Mengfan Yan, Xuejun Li, Anqi Shan, Hui Wu, Liwen Zhang, Baoxin Zhao, Yamin Liu, Ping Xian, Tong Wang, Xi Chen, Pengyi Guo, Naijun Tang, Chaokang Li, Guang-Hui Dong, Jie Chen, Yaoyan Li, and Zhao Ma
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China ,010501 environmental sciences ,01 natural sciences ,Biochemistry ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Environmental health ,Air Pollution ,Medicine ,Humans ,030212 general & internal medicine ,Cities ,0105 earth and related environmental sciences ,General Environmental Science ,Retrospective Studies ,Air Pollutants ,Proportional hazards model ,business.industry ,Incidence (epidemiology) ,Mortality rate ,Incidence ,Hazard ratio ,Type 2 Diabetes Mellitus ,Retrospective cohort study ,Environmental Exposure ,Europe ,Diabetes Mellitus, Type 2 ,Cohort ,Particulate Matter ,business ,Cohort study - Abstract
Background Ambient air pollution has recently been related to type 2 diabetes mellitus (T2DM), a disease that has caused an economic and health burden worldwide. Evidence of an association between air pollution and T2DM was reported in the United States and Europe. However, few studies have focused on the association with high levels of air pollutants in a developing country. Objectives We conducted a 12-year cohort study to assess the incidence and mortality of T2DM associated with long-term exposure to PM10, SO2, and NO2. Methods A retrospective cohort with participants from four cities in northern China was conducted to assess mortality and incidence of T2DM from 1998 to 2009. Incidence of T2DM was self-reported, and incident intake of an antidiabetic drug or injection of insulin simultaneously and mortality of T2DM was obtained from a family member and double checked against death certificates provided from the local center for disease control and prevention. Individual pollution exposures were the mean concentrations of pollutants estimated from the local environmental monitoring centers over the survival years. Hazard ratios (HRs) were estimated using Cox regression models after adjusting for potential confounding factors. Results A total of 39 054 participants were recruited into the mortality cohort, among which 59 subjects died from T2DM; 38 529 participants were analyzed in the incidence cohort, and 1213 developed new cases of T2DM. For each 10 μg/m3 increase in PM10, SO2, and NO2, the adjusted HRs and 95% confidence interval (CI) for diabetic incidence were 1.831 (1.778, 1.886), 1.287 (1.256, 1.318), and 1.472 (1.419, 1.528), respectively. Similar results can be observed in the analysis of diabetic mortality with HRs (95% CI) up to 2.260 (1.732, 2.950), 1.130 (1.042, 1.225), and 1.525 (1.280, 1.816), respectively. Conclusions Our results suggested that long-term exposure to high levels of PM10, SO2, and NO2 increase risk of incident and mortality of T2DM in China.
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- 2019
7. A pareto-optimal runtime power budgeting scheme for many-core systems
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Ling Wang, Yingtao Jiang, Terrence Mak, Baoxin Zhao, Xiaohang Wang, Mei Yang, and Masoud Daneshtalab
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010302 applied physics ,Mathematical optimization ,Computer Networks and Communications ,Computer science ,business.industry ,Overhead (engineering) ,02 engineering and technology ,Chip ,01 natural sciences ,Power budget ,020202 computer hardware & architecture ,Power (physics) ,Artificial Intelligence ,Hardware and Architecture ,Embedded system ,0103 physical sciences ,0202 electrical engineering, electronic engineering, information engineering ,business ,Frequency scaling ,Time complexity ,Software - Abstract
Due to the ever-escalating power consumption, a significant proportion of the future many-core chips is mandatory to be switched off to meet the power budgets. This trend has brought up a paradigm shift from conventional low-power to power budgeting designs, where performance optimization needs to be performed under a tight power budget constraint. There are two key issues to be considered when moving this new design paradigm forward. Firstly, with per-core frequency scaling, the number of frequency combinations of the cores grows exponentially. As more cores are integrated onto a chip, it becomes more challenging to achieve the optimal performance over a given power budget. Secondly, the power budgets of many-core system might undergo a rapid fluctuation. Consequently, the power budgeting scheme needs to be prompt to make appropriate changes to track such power budget variation. This paper is aiming at resolving the problem of optimizing overall performance over a power budget using frequency scaling technique. To solve the problem efficiently at runtime, we propose a parallel dynamic programming network, in which the Pareto-optimal solutions can be obtained using linear time complexity. Experimental results have confirmed that the proposed approach can reduce the execution time by 45% when compared to other existing methods. The runtime overhead and hardware cost of the proposed approach are reasonably small, such as the average area and power consumption are less than 1% of the whole network-on-chip. This paper demonstrates an effective formulation for delivering Pareto-optimal solutions for power budgeting in future many-core systems.
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- 2016
8. On Fine-Grained Runtime Power Budgeting for Networks-on-Chip Systems
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Yingtao Jiang, Masoud Daneshtalab, Baoxin Zhao, Mei Yang, Terrence Mak, and Xiaohang Wang
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010302 applied physics ,Power management ,Router ,Computer science ,business.industry ,02 engineering and technology ,01 natural sciences ,Power budget ,020202 computer hardware & architecture ,Theoretical Computer Science ,Computational Theory and Mathematics ,Hardware and Architecture ,Embedded system ,0103 physical sciences ,0202 electrical engineering, electronic engineering, information engineering ,Overhead (computing) ,Network performance ,Algorithm design ,Frequency scaling ,business ,Software - Abstract
Power budgeting is an essential aspect of networks-on-chip (NoC) to meet the power constraint for on-chip communications while assuring the best possible overall system performance. For simplicity and ease of implementation, existing NoC power budgeting schemes treat all the individual routers uniformly when allocating power to them. However, such homogeneous power budgeting schemes ignore the fact that the workloads of different NoC routers may vary significantly, and thus may provide excess power to routers with low workloads, whereas insufficient power to those with high workloads. In this paper, we formulate the NoC power budgeting problem in order to optimize the network performance over a power budget through per-router frequency scaling. We take into account of heterogeneous workloads across different routers as imposed by variations in traffic. Correspondingly, we propose a fine-grained solution using an agile algorithm with low time complexity. Frequency of each router is set individually according to its contribution to the average network latency while meeting the power budget. Experimental results have confirmed that with fairly low runtime and hardware overhead, the proposed scheme can help save up to $50$ percent application execution time when compared with the latest proposed methods.
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- 2016
9. Long-term exposure to high particulate matter pollution and cardiovascular mortality: A 12-year cohort study in four cities in northern China
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Zhipeng Bai, Bin Han, Xi Chen, Naijun Tang, Zengrong Sun, Peizhong Peter Wang, Min Sun, Jie Chen, Chang-ping Li, Hao Yu, Jing Ma, Yamin Liu, Xiao-dan Xue, Baoxin Zhao, Li-jun Zhao, and Liwen Zhang
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Adult ,Male ,China ,Time Factors ,Disease ,Cohort Studies ,Medicine ,Humans ,Cities ,Socioeconomic status ,lcsh:Environmental sciences ,General Environmental Science ,Retrospective Studies ,lcsh:GE1-350 ,Air Pollutants ,business.industry ,Confounding ,Retrospective cohort study ,Middle Aged ,Models, Theoretical ,medicine.disease ,Europe ,Cardiovascular Diseases ,Relative risk ,Heart failure ,Cohort ,Female ,Particulate Matter ,business ,Demography ,Cohort study ,Environmental Monitoring - Abstract
Epidemiologic studies have demonstrated that long-term exposure to relatively low levels of particulate air pollution is associated with adverse cardiovascular outcomes in Europe and North America. However, few studies have assessed the association with high level air pollutants. We aimed to assess the cardiovascular effects of long-term exposure to high level concentrations of inhalable particulate and to identify the characteristics of the Chinese population that are susceptible to the health effects. A retrospective cohort, containing 39,054 subjects from four cities in northern China, was followed for mortality of all cause and specific cardiovascular diseases from 1998 to 2009. Information on concentrations of PM10 (particulate matter
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- 2014
10. Study on the benefits of children’s health from air quality improved in XX city
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Jinliang Zhang, Baoxin Zhao, Tian Sang, Yanping Zhang, and Zhao Yang
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Outpatient visits ,business.industry ,Environmental health ,General Earth and Planetary Sciences ,Medicine ,business ,complex mixtures ,Air quality index ,respiratory tract diseases ,General Environmental Science - Abstract
Objective The aim of this study was to establish the concentration–response relationships between the levels of SO2 and PM10 and the daily numbers of pediatric outpatient visits and to estimate ben...
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- 2016
11. The Association Of Air Pollution With Outpatient Visits In A Hospital Taiyuan At Early 2013
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Baoxin Zhao, Yanping Zhang, Tian Sang, Jeremiah Liu, Tiansen Zou, Fenfen Wang, and Zhao Yang
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Outpatient visits ,Haze ,genetic structures ,business.industry ,Environmental health ,Air pollution ,medicine ,General Earth and Planetary Sciences ,medicine.disease_cause ,business ,eye diseases ,General Environmental Science - Abstract
Objective: To explore and descript the association of air pollution with outpatient visits in a hospital Taiyuan during 2013 haze episode. Methods: Data of outpatient visits were collected in a com...
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- 2015
12. Population-based reference for birth weight for gestational age in northern China
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Fenfen Wang, Zhe Liu, lizhen Xu, Xiaoping Xue, Baoxin Zhao, Yanping Zhang, and Jinliang Zhang
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Male ,medicine.medical_specialty ,Pediatrics ,China ,Birth weight ,Gestational Age ,Sex Factors ,Epidemiology ,Medicine ,Birth Weight ,Humans ,Growth Charts ,Estimation ,business.industry ,Infant, Newborn ,Obstetrics and Gynecology ,Gestational age ,medicine.disease ,Cross-Sectional Studies ,Meta-analysis ,Pediatrics, Perinatology and Child Health ,Small for gestational age ,Gestation ,Female ,business ,Demography - Abstract
Background Localized birth weight references for gestational age serve as an essential tool in accurate evaluation of atypical birth outcomes (e.g. small for gestational age) in clinical diagnosis and region-specific epidemiological studies. Such standards are currently not available in Mainland China. Aims To construct up-to-date, sex- and parity-specific birth weight references based on 231,937 births in Taiyuan, China during years 2005–2011. Study design Population-based, cross-sectional. Subjects Hospital-registered, healthy infants with births dated between 11/01/2005 and 12/31/2011 within Taiyuan area. Outcome measures Birth weight in grams, and gestational age in complete weeks were calculated using a combination of last-menstrual-date-based estimation and ultrasound examination. Results Separate birth weight references are constructed for male and female infants born from primiparous and multiparous mothers. Male infants are found to weigh more than female infants in later gestational ages (appr. weeks 33–42), and infants born to multiparous mother are found to weigh more than infants born to primiparous mothers in later gestational ages (appr. weeks 36–42). Conclusions The Taiyuan birth weight reference curves display similar trends of growth as reference curves from other countries worldwide (Netherlands, Scotland, Australia, Canada, Hong Kong, Korea and Kuwait). However, growth of birth weight for Taiyuan infants tends to be slower compared to European and North American infants regardless of gender, but similar to infants from other Asian countries.
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- 2013
13. Design of novel tunable resonant cavity enhanced photodetector (RCE-PD)
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Xinye Fan, Xiaofeng Duan, Baoxin Zhao, Yingfei Zhou, Yongqing Huang, and Xiaomin Ren
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Wavelength ,Optics ,Materials science ,business.industry ,Transfer-matrix method (optics) ,Photodetector ,Optoelectronics ,Quantum efficiency ,Biasing ,Resonant cavity ,Air gap (plumbing) ,business ,Active layer - Abstract
A novel tunable resonant cavity enhanced photodetector (RCE-PD) is achieved by using an air gap. The optical properties of the photodetector are designed by using the transfer matrix method (TMM). The quantum efficiency (QE) of the tunable RCE-PD is calculated and the optimizing structure is obtained. It is revealed that the peak QE increases to the highest value ( 92%) when the thickness of active layer is 106nm. When the air layer thickness changed 20nm under a low bias voltage, the peak wavelength blue shifts from 1550nm to 1547.9nm and the QE of the device keeps almost invariant at the same time.
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- 2011
14. Investigation on the Health Status of Coal Miners in Shanxi Province
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Xiaochuan Pan, Ze Cong, Wenjun Ma, Baoxin Zhao, and Xuchun Li
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Geography ,Epidemiology ,business.industry ,Coal ,Socioeconomics ,business - Published
- 2011
15. P-023
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Bao-qin Feng, Zhiqin Zhang, Xiao-ping Zhang, Hai-ping Li, Ligang Ma, Zhe Liu, Baoxin Zhao, and Yanping Zhang
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Epidemiology ,business.industry ,Environmental health ,Medicine ,China ,business - Published
- 2012
16. P-045
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Xiaoping Xue, lizhen Xu, Baoxin Zhao, Zhe Liu, Bing Su, and Yanping Zhang
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Epidemiology ,business.industry ,Air pollution exposure ,Environmental health ,medicine ,Small for gestational age ,medicine.disease ,business - Published
- 2012
17. P-349
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Xiaoping Xue, Li Liu, Jinfen Li, Ligang Ma, Yongchun Wu, Zhiqin Zhang, Baoxin Zhao, Yanping Zhang, and Zhe Liu
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medicine.medical_specialty ,Pediatrics ,Epidemiology ,business.industry ,Emergency medicine ,medicine ,Respiratory system ,business - Published
- 2012
18. P-024
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Yongchun Wu, Yanping Zhang, Zhe Liu, Baoxin Zhao, Zhiqin Zhang, Xiaoping Xue, Ligang Ma, Jinfen Li, and Li Liu
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Pediatrics ,medicine.medical_specialty ,Epidemiology ,business.industry ,Environmental health ,Air pollution ,medicine ,Respiratory system ,China ,medicine.disease_cause ,business - Published
- 2012
19. P-326
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Baoxin Zhao, Zhe Liu, Zhiqin Zhang, Yongchun Wu, Li Liu, Yanping Zhang, Ligang Ma, Jinfen Li, and Xiaoping Xue
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medicine.medical_specialty ,Epidemiology ,business.industry ,Emergency medicine ,Medicine ,Medical emergency ,business ,medicine.disease - Published
- 2012
20. P-350
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Ligang Ma, Zhiqin Zhang, Yongchun Wu, Zhe Liu, Li Liu, Baoxin Zhao, Xiaoping Xue, Yanping Zhang, and Jinfen Li
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medicine.medical_specialty ,Pediatrics ,Epidemiology ,business.industry ,Emergency medicine ,medicine ,Respiratory system ,business - Published
- 2012
21. E-021
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Ligang Ma, Baoxin Zhao, Yanping Zhang, Li Liu, Zhe Liu, Zhiqin Zhang, and Ruihong Gao
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Epidemiology ,business.industry ,Air pollution exposure ,Environmental health ,Medicine ,Respiratory system ,business - Published
- 2012
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