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Search: authors:"Zhenhong Li"

6 papers found.
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Multi-GNSS precise point positioning for precision agriculture

The main objective of this research was to examine the feasibility of Multi-GNSS precise point positioning (PPP) in precision agriculture (PA) through a series of experiments with different working modes (i.e. stationary and moving) under different observation conditions (e.g. open sky, with buildings or with canopy). For the stationary test carried out in open space in the UK...

Dose-Response Modeling of Etoposide-Induced DNA Damage Response

The 2007 National Research Council Report “Toxicity Testing in the 21st Century: A Vision and A Strategy” recommended an integrated, toxicity pathway–oriented approach for chemical testing. As an integral component of the recommendation, computational dose-response modeling of toxicity pathways promises to provide mechanistic interpretation and prediction of adverse cellular...

SHRIMP U-Pb zircon dating of the Ordos Basin basement and its tectonic significance

SHRIMP U-Pb zircon 207Pb/206Pb ages were obtained from two drill cores from the basement of the Ordos Basin. A garnet-sillimanite-biotite-plagioclase gneiss (QI1-1) from the western Ordos Basin basement yielded an average age of 2031±10 Ma. Based on the mineral assemblages, the source material of the gneiss is speculated to be pelitic-felsic system. A gneissic two-mica granite...

Beacon routing algorithm in wireless sensor networks with mobile gateway

In this article, we first propose a reverse sector mechanism and an optimization division mechanism, which can provide enormous energy conservation benefits. Based on these mechanisms, an efficient sensory data collection mechanism over a cellular-WSN integrated network, named beacon routing algorithm, is proposed to spontaneously renew the local WSN topology according to the...

A computational model of the hypothalamic - pituitary - gonadal axis in female fathead minnows (Pimephales promelas) exposed to 17α-ethynylestradiol and 17β-trenbolone

Background Endocrine disrupting chemicals (e.g., estrogens, androgens and their mimics) are known to affect reproduction in fish. 17α-ethynylestradiol is a synthetic estrogen used in birth control pills. 17β-trenbolone is a relatively stable metabolite of trenbolone acetate, a synthetic androgen used as a growth promoter in livestock. Both 17α-ethynylestradiol and 17β-trenbolone...

A Computational Model of the Hypothalamic-Pituitary-Gonadal Axis in Male Fathead Minnows Exposed to 17α-Ethinylestradiol and 17β-Estradiol

Estrogenic chemicals in the aquatic environment have been shown to cause a variety of reproductive anomalies in fish including full sex reversal, intersex, and altered population sex ratios. Two estrogens found in the aquatic environment, 17α-ethinylestradiol (EE2) and 17β-estradiol (E2), have been measured in wastewater treatment effluents and have been shown to cause adverse...