Hai Zhong

ORCID: 0000-0002-6298-4071
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About
Contact & Profiles
Research Areas
  • Magnetic properties of thin films
  • Global Health Care Issues
  • Magnetic Properties and Applications
  • Healthcare Policy and Management
  • Mechanical and Optical Resonators
  • Multiferroics and related materials
  • Corruption and Economic Development
  • Healthcare Systems and Reforms
  • Intergenerational and Educational Inequality Studies
  • China's Socioeconomic Reforms and Governance
  • Fiscal Policy and Economic Growth
  • Health Systems, Economic Evaluations, Quality of Life
  • Income, Poverty, and Inequality
  • Demographic Trends and Gender Preferences
  • Health disparities and outcomes
  • Magnetic and transport properties of perovskites and related materials
  • Force Microscopy Techniques and Applications
  • Regional Development and Environment
  • Migration and Labor Dynamics
  • Intergenerational Family Dynamics and Caregiving
  • Reinforcement Learning in Robotics
  • Global Maternal and Child Health
  • Pharmaceutical Economics and Policy
  • Local Government Finance and Decentralization
  • Asian Culture and Media Studies

Central University of Finance and Economics
2012-2024

Institute of Physics
2023

Chinese Academy of Sciences
2023

Renji Hospital
2022

Universität Hamburg
2014-2018

Tsinghua University
2008-2018

Xi'an University of Finance and Economics
2007-2011

Hebei University of Technology
2009

Western University
2006

Xi'an Jiaotong University
2004-2005

Gardenia jasminoides Ellis and Crocus sativus L. are both traditional Chinese medicines that have significant biologic activities on inflammatory processes. But the active ingredients remain unclear. Crocin, a representative of carotenoid compounds, has now drawn considerable attention not only because it is natural food colorant but also great potential in medicine. until now, systematic anti-inflammatory effect crocin been well established. In present study, experiments were carried out to...

10.1021/jf901752f article EN Journal of Agricultural and Food Chemistry 2009-08-24

Effective multi-user delay-constrained scheduling is crucial in various real-world applications, such as instant messaging, live streaming, and data center management. In these scenarios, schedulers must make real-time decisions to satisfy both delay resource constraints without prior knowledge of system dynamics, which are often time-varying challenging estimate. Current learning-based methods typically require interactions with actual systems during the training stage, can be difficult or...

10.48550/arxiv.2501.12942 preprint EN arXiv (Cornell University) 2025-01-22

As a data-driven approach, offline MARL learns superior policies solely from datasets, ideal for domains rich in historical data but with high interaction costs and risks. However, most existing methods are task-specific, requiring retraining new tasks, leading to redundancy inefficiency. To address this issue, paper, we propose task-efficient multi-task algorithm, Skill-Discovery Conservative Q-Learning (SD-CQL). Unlike skill-discovery methods, SD-CQL discovers skills by reconstructing the...

10.48550/arxiv.2502.08985 preprint EN arXiv (Cornell University) 2025-02-13

10.1016/j.chieco.2011.02.002 article EN China Economic Review 2011-03-08

We present room-temperature measurements of magnon spin diffusion in epitaxial ferrimagnetic insulator MgAl$_{0.5}$Fe$_{1.5}$O$_{4}$ (MAFO) thin films near zero applied magnetic field where the sample forms a multi-domain state. Due to weak uniaxial anisotropy, domains are separated primarily by 180$^\circ$ domain walls. find, surprisingly, that presence walls has very little effect on -- nonlocal transport signals state retain at least 95% maximum signal strength measured for...

10.1038/s41467-023-38095-3 article EN cc-by Nature Communications 2023-04-26

Understanding how antiferromagnetic spin textures evolve with epitaxial strain and ferroelectric domains in multiferroic BiFeO${}_{3}$ thin films is key for their efficient use as reconfigurable spintronic devices. This study combines local-probe techniques to reveal exotic cycloids diverging periods under large tensile strain. Coupling quantitative measurements analytical calculations of the expected stray magnetic field, authors estimate spin-density-wave amplitude locked cycloid different...

10.1103/physrevapplied.17.044051 article EN Physical Review Applied 2022-04-26

This study investigates inequality and inequity in pharmaceutical utilization Ontario. First, I compare drug use between the senior non-senior population of Ontario at three points time: 1990, 1996/97, 2000/01. During this period, all seniors were universally covered by publicly financed Drug Benefit (ODB) program. was not case for population. Second, examine changes both groups each time points. Cost-sharing other introduced into ODB which allows us to identify influence on equity coverage policies.

10.3138/cpp.33.4.487 article EN Canadian Public Policy 2007-12-01

10.1007/s10754-010-9078-y article EN International Journal of Health Care Finance and Economics 2010-03-09

The quantity-quality trade-off is one important motivation for the family planning policies in many developing countries. In this paper, we examine effect of number siblings on children's health and education China. We find evidence but not education. Our study has three contributions. First, focus only also health, which received rather little attention literature. Secondly, use a new source exogenous variation fertility – variations strictness One-Child policy across localities China to...

10.1080/00220388.2016.1214720 article EN The Journal of Development Studies 2016-08-24

Abstract Developing countries often lack an adequate social security system, and elderly parents rely heavily on their children for support. Aging populations low-fertility rates are emerging trend in developing countries. In this paper, we examine the effects of sibship size individuals' internal migration decisions China. We find that number siblings has a positive effect individual decisions, but is non-linear marginally increasing. Second, having brothers more significant than sisters....

10.1017/dem.2019.13 article EN Journal of Demographic Economics 2019-11-07

A promising route to novel quantum technologies are hybrid systems, which combine the advantages of several individual systems. We have realized a atomic-mechanical experiment consisting SiN membrane oscillator cryogenically precooled 500 mK and optically coupled cloud laser cooled Rb atoms. Here, we demonstrate active feedback cooling minimum mode occupation n = 16 corresponding temperature T 200 {\mu}K. Furthermore, characterize in detail coupling atoms by means sympathetic cooling. By...

10.1088/1367-2630/aadf20 article EN cc-by New Journal of Physics 2018-09-05

This article examines the effects of anti-corruption efforts on firm innovation in China. Based number invention patent applications filed by firms, we find that firms located areas with intense are more innovative. We control for a broad set and province characteristics, including industry-year fixed effects, demonstrate robustness results using an instrumental variable analysis, alternative proxies intensity fixed-effect Poisson regression model. A heterogeneity analysis shows...

10.1080/00036846.2024.2386856 article EN Applied Economics 2024-08-06

High resolution magnetic force microscopy (MFM) has been carried out on L10-FePt dot arrays patterned by plasma modified nanosphere lithography. An ex situ tip magnetization reversal experiment is to determine the domains and verify imaging stability of MFM mutual perturbations between sample. We have identified that critical size for single domain region about 90 nm across. Comparison with image simulation also suggests magnetizations triangular dots in both double states are parallel one...

10.1088/0957-4484/19/9/095703 article EN Nanotechnology 2008-02-12

We describe the construction of an apparatus designed to realize a hybrid quantum system comprised cryogenically cooled mechanical oscillator and ultra-cold $^{87}$Rb atoms coupled via light. The outstanding feature our instrument is in-situ adjustable asymmetric all-fiber membrane-in-the-middle cavity located inside ultra-high vacuum dilution refrigerator based cryostat. show that Bose-Einstein condensates $N=2\times10^6$ can be produced in less than 20 s demonstrate single photon...

10.1063/1.4976497 article EN Review of Scientific Instruments 2017-02-01

10.1007/s10198-012-0380-0 article EN The European Journal of Health Economics 2012-01-28

Education expansion may lead to ‘over‐education’, where the social connections of parents exert more significant influence on return education children. With assumption a positive correlation between human capital and parental income in presence over‐education, we show that: (i) cause horizontal inequity opportunities inefficiency accumulation; (ii) causes persistent intergenerational immobility; (iii) an (especially higher education) leads immobility.

10.1111/ecca.12032 article EN Economica 2013-08-01

Most existing micro‐level empirical analyses of corruption rely on administrative records, special‐purpose surveys or field experiments, which can be difficult very costly to obtain in some situations. In this paper, we apply an expenditure‐based method quantifying the extent a particular country using household survey data. This utilizes discrepancies between consumption and reported income measure corruption. Another contribution paper is that it provides first objective estimate China. We...

10.1111/ecca.12198 article EN Economica 2016-05-24

The total redistributive effect (RE) of health-care finance has been decomposed into vertical, horizontal and reranking effects. vertical further tax rate structure We extend this latter decomposition to the components RE. also show how measure effects each component system, allowing analysis RE in context that system. methods are illustrated with application financing Canada.

10.1002/hec.1420 article EN Health Economics 2008-09-25

10.1007/s10198-009-0170-5 article EN The European Journal of Health Economics 2009-07-14

An accurate micromagnetic model of the magnetic force microscope (MFM) tip has been developed to calculate effective dipole and its position in a simple point probe model, which are important quantitative explanation MFM images. The pyramid-shaped tips considered this paper; so cuboid cells body, as well triangular prism quadrangle pyramid at edge included accurately describe geometrical shape tip. field distribution analyzed, based on calculated domain structures with different materials...

10.1109/tmag.2010.2044510 article EN IEEE Transactions on Magnetics 2010-05-12

Abstract The persistent correlations between parents and children's outcomes have long been investigated. From a policy perspective, it is important to understand the underlying causes of those correlations. Educational changes may significant impacts on intergenerational mobility. last several decades witnessed remarkable expansion higher education around world. In this paper, we examine effect mobility in China. We find that China has weakened advantage cadres’ children participation,...

10.1111/ecot.12130 article EN Economics of Transition 2017-06-23

Magnetic nanowires (NWs) are essential building blocks of spintronics devices as they offer tunable magnetic properties and anisotropy through their geometry. While the synthesis compositional control NWs have seen major improvements, considerable challenges remain for characterization local features at nanoscale. Here, we demonstrate nonperturbative field distribution mapping in ultrascaled with diameters down to 6 nm by scanning nitrogen-vacancy magnetometry. This enables localized,...

10.1021/acs.nanolett.1c03723 article EN Nano Letters 2021-12-09
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