Chengyi Tu

ORCID: 0000-0001-5408-9336
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About
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Research Areas
  • Ecosystem dynamics and resilience
  • Evolutionary Game Theory and Cooperation
  • Complex Network Analysis Techniques
  • Complex Systems and Time Series Analysis
  • Gene Regulatory Network Analysis
  • Plant and animal studies
  • Opinion Dynamics and Social Influence
  • Ecology and Vegetation Dynamics Studies
  • Neural dynamics and brain function
  • Mental Health Research Topics
  • Experimental Behavioral Economics Studies
  • Fish Ecology and Management Studies
  • Plant Water Relations and Carbon Dynamics
  • Water-Energy-Food Nexus Studies
  • Nonlinear Dynamics and Pattern Formation
  • Functional Brain Connectivity Studies
  • Sustainability and Ecological Systems Analysis
  • Neural Networks Stability and Synchronization
  • Water resources management and optimization
  • Solar Radiation and Photovoltaics
  • Mathematical and Theoretical Epidemiology and Ecology Models
  • Hydrology and Sediment Transport Processes
  • Geomagnetism and Paleomagnetism Studies
  • Economic and Technological Innovation
  • Marine and fisheries research

Zhejiang Sci-Tech University
2022-2025

University of California, Berkeley
2018-2024

PowerChina (China)
2022-2024

Powerchina Huadong Engineering Corporation (China)
2022-2024

Yunnan University
2019-2022

University of Padua
2016-2018

University of Electronic Science and Technology of China
2013-2018

Istituto Nazionale di Fisica Nucleare, Sezione di Padova
2018

China Medical University
2014-2015

China Medical University Hospital
2014-2015

Abstract Recent studies have highlighted the reliance of global food production on unsustainable irrigation practices, which deplete freshwater stocks and environmental flows, consequently impair aquatic ecosystems. Unsustainable is driven by domestic international demand for agricultural products. Research consequences trade has often concentrated displacement pollution land use, while effect water sustainability drying over-depleted watercourses seldom been recognized quantified. Here we...

10.1088/1748-9326/ab4bfc article EN cc-by Environmental Research Letters 2019-10-08

Abstract. This paper gives a review of some recent work on intermittency, non-Gaussian statistics, and fractal scaling solar wind magnetohydrodynamic turbulence. Model calculations theories are discussed put in their context with the in-situ observations fluctuations, essentially flow velocity magnetic field. Emphasis is placed more comparison data theory than complete derivation model results, which treated tutorial fashion. The introduction reminds important key aspects Then structure...

10.5194/npg-4-101-1997 article EN cc-by-nc-sa Nonlinear processes in geophysics 1997-06-30

A two‐component incompressible fluctuation model is presented to explain the radial evolution of solar wind fluctuations. The basic idea consider small‐scale fluctuations in as being composed Alfvén waves and convective structures. major are believed be created near coronal base propagate outward along magnetic field lines. structures defined variations perpendicular local direction. They either quasi‐static or turbulent slowly evolving plasma frame reference. connected, parallel direction,...

10.1029/92ja01947 article EN Journal of Geophysical Research Atmospheres 1993-02-01

Abstract Climate change has exacerbated precipitation variability, profoundly impacting vegetation dynamics and community structures in arid ecosystems. There remains a notable knowledge gap regarding the ecological effects of altered on crassulacean acid metabolism (CAM) plants their interactions with other photosynthetic types. This study investigated response typical obligate CAM plant Orostachys fimbriata to extended watering intervals (WI4‐WI8) various competitive patterns (M 1 ‐M 4 ) C...

10.1111/ppl.70093 article EN Physiologia Plantarum 2025-01-01

10.1016/j.physa.2014.01.071 article EN Physica A Statistical Mechanics and its Applications 2014-02-14

Chronic obstructive pulmonary disease (COPD) is frequently associated with various comorbidities. However, the proportion of COPD patients dementia has not been adequately examined. This retrospective cohort study investigated association between and by using a nationwide population-based database in Taiwan.Data were retrieved from Taiwanese National Health Insurance Research Database analyzed multivariate Cox proportional hazards regression models to assess effects on risk after adjusting...

10.1111/ene.12573 article EN European Journal of Neurology 2014-10-09

Shrub encroachment is a global ecological issue. The changes in growth dynamics between shrub seedlings and herbs are pivotal determining encroachment, yet their response to varying rainfall regimes remains unclear. We conducted precipitation manipulation experiment (three (P) amount treatments: P−25% (225 mm), P (300 P+25% (375 mm); three drought interval DI4, DI6, DI8) on mixture of Caragana microphylla (shrub) four (Neotrinia splendens, Campeiostachys dahurica, Lolium multiflorum Medicago...

10.3390/su17031142 article EN Sustainability 2025-01-30

Recently, a theoretical framework aimed at separating the roles of dynamics and topology in multi-dimensional systems has been developed (Gao et al, \textit{Nature}, Vol 530:307 (2016)). The validity their method is assumed to hold depending on two main hypothesis: $(i)$ network determined by interaction between pairs nodes negligible degree correlations; $(ii)$ node activities are uniform across both drift pair-wise functions. Moreover, authors consider only positive (mutualistic)...

10.1103/physreve.95.062307 article EN Physical review. E 2017-06-27

One of the outstanding problems in complexity science and engineering is study high-dimensional networked systems their susceptibility to transitions undesired states as a result changes external drivers or structural properties. Because incredibly large number parameters controlling state such complex heterogeneity its components, dynamics extremely difficult. Here we propose an analytical framework for collapsing N-dimensional into S+1-dimensional manifold function S effective control with...

10.1016/j.isci.2020.101912 article EN cc-by-nc-nd iScience 2020-12-09

Abstract. The geometrical and scaling properties of the energy flux turbulent kinetic in solar wind have been studied. Using present experimental technology measurements we cannot directly measure real volumetric dissipation rate, ε(t), but are constrained to represent it by its surrogate near range at proton gyro scale. There is evidence for multifractal nature so defined field a result derived from exponents statistical moments. generalized dimension Dq has determined reveals that...

10.1007/s00585-996-0259-4 article EN cc-by Annales Geophysicae 1996-03-31

Empirical evidences show that ecosystems with high biodiversity can persist in time even the presence of few types resources and are more stable than low biodiverse communities. This evidence is contrasted by conventional mathematical modeling, which predicts many species and/or cooperative interactions detrimental for ecological stability persistence. Here we propose a modelling framework population dynamics, also include indirect mediated other (e.g. habitat modification). We large system...

10.1038/s41598-019-41614-2 article EN cc-by Scientific Reports 2019-04-03

This paper presents the results of a hydrodynamic experimental study hydraulic characteristics flow in different vertical slot fishway (VSF) designs with L-shaped, polygonal, and semicircular baffles. A biological experiment was conducted using endemic fish to analyze efficiency upstream passage VSF designs. Based on results, significant difference water depth, velocity, turbulence kinetic energy, observed. The L-shaped baffle had better energy dissipation; however, polygonal passage....

10.1061/jhend8.hyeng-13394 article EN Journal of Hydraulic Engineering 2023-06-24

The management of common-pool resources is a complex challenge due to the risk overexploitation and tragedy commons. A novel framework has been introduced address this issue, focusing on coevolutionary relationship between human behavior within human-environment system. However, impact Allee effect coevolution its resource sustainability still unexplored. effect, biological phenomenon characterized by correlation availability growth rate, fundamental attribute numerous natural resources. In...

10.48550/arxiv.2405.01271 preprint EN arXiv (Cornell University) 2024-05-02

The year 2017 saw the rise and fall of crypto-currency market, followed by high variability in price all crypto-currencies. In this work, we study abrupt transition residuals, which is associated with critical (the phenomenon slowing down) or stochastic phenomena. We find that, regardless specific rolling window size, autocorrelation always fluctuates around a value, while standard deviation increases monotonically. Therefore, does not display signals down, can be used to anticipate...

10.1098/rsos.191450 article EN cc-by Royal Society Open Science 2020-03-01
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