Capturing spiral radial growth of conifers using the superellipse to model tree-ring geometric shape

PJ Shi, JG Huang, C Hui, HD Grissino-Mayer… - Frontiers in plant …, 2015 - frontiersin.org
Tree-rings are often assumed to approximate a circular shape when estimating forest productivity
and carbon dynamics. However, tree rings are rarely, if ever, circular, thereby possibly …

Modifying organic/metal interface via solvent treatment to improve electron injection in organic light emitting diodes

Q Wang, Y Zhou, H Zheng, J Shi, C Li, CQ Su, L Wang… - Organic …, 2011 - Elsevier
By simply spin-coating the solvents, such as ethanol and methanol, on top of the organic active
layer, the performance of polymer organic light-emitting diodes is significantly enhanced. …

Comparison of dwarf bamboos (Indocalamus sp.) leaf parameters to determine relationship between spatial density of plants and total leaf area per plant

PJ Shi, Q Xu, HS Sandhu, J Gielis, YL Ding… - Ecology and …, 2015 - Wiley Online Library
The relationship between spatial density and size of plants is an important topic in plant
ecology. The self‐thinning rule suggests a −3/2 power between average biomass and density or …

A new flexible sigmoidal growth model

L Cao, PJ Shi, L Li, G Chen - Symmetry, 2019 - mdpi.com
Biological growth is driven by numerous functions, such as hormones and mineral nutrients,
and is also involved in various ecological processes. Therefore, it is necessary to accurately …

Comparison of thermal performance equations in describing temperature-dependent developmental rates of insects:(I) empirical models

PJ Shi, GVP Reddy, L Chen, F Ge - Annals of the Entomological …, 2016 - academic.oup.com
Temperature greatly affects the developmental duration of insects at their different stages,
and many mathematical models exist for describing their temperature-dependent …

Comparison of thermal performance equations in describing temperature-dependent developmental rates of insects:(II) two thermodynamic models

PJ Shi, GVP Reddy, L Chen, F Ge - Annals of the Entomological …, 2017 - academic.oup.com
There are many descriptive statistical models describing the temperature-dependent
developmental rates of insects without derivation of biophysical processes; thus, it is difficult to …

Influence of leaf shape on the scaling of leaf surface area and length in bamboo plants

PJ Shi, YR Li, Ü Niinemets, E Olson, J Schrader - Trees, 2021 - Springer
Key message Using more than 10,000 bamboo leaves, we found that the scaling between
leaf surface area and length follows a uniform power law relationship mainly relying on the …

Weakening density dependence from climate change and agricultural intensification triggers pest outbreaks: a 37‐year observation of cotton bollworms

…, C Hui, S Ge, XY Men, ZH Zhao, PJ Shi… - Ecology and …, 2014 - Wiley Online Library
Understanding drivers of population fluctuation, especially for agricultural pests, is central to
the provision of agro‐ecosystem services. Here, we examine the role of endogenous …

Capture the time when plants reach their maximum body size by using the beta sigmoid growth equation

PJ Shi, L Chen, C Hui, HD Grissino-Mayer - Ecological Modelling, 2016 - Elsevier
Of the many mathematical models proposed for capturing the dynamics of plant growth, the
beta sigmoid function (BSF) is the newest and consequently is not well known to ecologists. …

Confidence interval of intrinsic optimum temperature estimated using thermodynamic SSI model

T Ikemoto, I Kurahashi, PJ Shi - Insect science, 2013 - Wiley Online Library
The intrinsic optimum temperature for the development of ectotherms is one of the most
important factors not only for their physiological processes but also for ecological and evolutional …