Terahertz spectroscopic monitoring and analysis of citrus leaf water status under low temperature stress

Zang, Ziyi; Li, Zaoxia; Wang, Jie; Lu, Xing-Xing; Lyu, Qiang; Tang, Mingjie; Cui, Hong‐Liang; Yan, Shihan

doi:10.1016/j.plaphy.2022.10.032

Cited by 12 publications

(3 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Zhang et al [52] found that terahertz spectroscopy could remotely measure plant leaves' free and bound water content. Zhang et al [53] also evaluated the ability of terahertz spectroscopy to quantify free and bound water in citrus leaves exposed to low temperature stress. They found that the relative change in volume fraction for the bound: free water ratio increased by 9-fold after five freeze-thaw cycles for citrus leaves.…”

Section: Macroscopicmentioning

confidence: 99%

Magnetized Seeds and Structured Water: Effects on Resilience of Velvet Bean Seedlings (Mucuna pruriens) under Deficit Irrigation

Ramsey

2023

J. Basic Appl. Sci.

View full text Add to dashboard Cite

A custom-built water generator supplied structured water (SW) for applying the deficit irrigation treatments to velvet bean plants (Mucuns pruriens). The objectives of the study were to 1) determine the effects of magnetized seed treatment on velvet bean plants, 2) determine the effects of magnetized and hydroxylated water treatments on velvet bean plants, and 4) determine the effects of deficit irrigation, using three soil moisture levels, on velvet bean plants. The optimal water-saving treatment was magnetized seeds plus 10 MT + HWT. This treatment had a 226% increase in transpiration and a 22% increase in water vapor concentration in the intercellular airspace for the low soil moisture watering schedule. The three study factors in the optimal seed and water treatment had a synchronistic effect for enhancing metabolic efficiency by increasing whole plant WUE by 87% and carbon assimilation efficiency by 66% in the low soil moisture schedule. Plants irrigated with SW water and grown from magnetized seeds had enhanced resilience to high water stress conditions by maintaining adequate levels of biologically structured water. The rapid deactivation of a suite of highly interconnected defense activities in the optimal seed and water treatments implies that the plants exhibit macroscopic coherence properties. Coherence at the macroscopic level resulted in complex synchronization between metabolic efficiency, plant health, and deactivation of a suite of regulatory defenses in plants exposed to high water stress.

show abstract

Section: Macroscopicmentioning

confidence: 99%

Magnetized Seeds and Structured Water: Effects on Resilience of Velvet Bean Seedlings (Mucuna pruriens) under Deficit Irrigation

Ramsey

2023

J. Basic Appl. Sci.

View full text Add to dashboard Cite

show abstract

“…Water content is one of the important indicators of crop quality, and too much or too little moisture can affect the quality of crops [ 84 ]. The water content of plants varies greatly during different growth cycles, and the nondestructive detection of their water content using terahertz technology allows for an understanding of the growth dynamics of plants by monitoring the water content in their leaves and also by studying the effect of other factors on the variation in the water content in plants.…”

Section: Research Progress Of Moisture Detection Based On Thz Wavementioning

confidence: 99%

Recent Advances in THz Detection of Water

Sun

Jiang

et al. 2023

IJMS

View full text Add to dashboard Cite

The frequency range of terahertz waves (THz waves) is between 0.1 and 10 THz and they have properties such as low energy, penetration, transients, and spectral fingerprints, which are especially sensitive to water. Terahertz, as a frontier technology, have great potential in interpreting the structure of water molecules and detecting biological water conditions, and the use of terahertz technology for water detection is currently frontier research, which is of great significance. Firstly, this paper introduces the theory of terahertz technology and summarizes the current terahertz systems used for water detection. Secondly, an overview of theoretical approaches, such as the relaxation model and effective medium theory related to water detection, the relationship between water molecular networks and terahertz spectra, and the research progress of the terahertz detection of water content and water distribution visualization, are elaborated. Finally, the challenge and outlook of applications related to the terahertz wave detection of water are discussed. The purpose of this paper is to explore the research domains on water and its related applications using terahertz technology, as well as provide a reference for innovative applications of terahertz technology in moisture detection.

show abstract

“…

Promising applications in the THz frequency range evolved in the past years such as THz imaging for security and quality control, ultrafast communication, monitoring of living objects, and THz radar technology. [1][2][3][4][5] Photonic as well as electronic devices can be used in many use cases in the THz field but for commercialization compact and efficient electronic devices are preferable. Thus, high current density devices with high electron mobility and low DC power consumption are being extensively researched.

…”

mentioning

confidence: 99%

Experimental and Theoretical Investigation of Collector Spacer and Doping Profile on Triple‐Barrier Resonant Tunneling Diodes

Mutlu,

Grygoriev,

Clochiatti

et al. 2023

Physica Status Solidi (a)

View full text Add to dashboard Cite

Upcoming THz applications require compact, robust, and efficient sources with high output‐power. Among electronic devices, resonant tunneling diodes (RTDs) have been shown to be a promising candidate for THz operation. Triple barrier resonant tunneling diodes provide a high degree of design and operation freedom. Zero‐bias detection and THz emission is possible with the same device due to the asymmetric structure and IV curve. However, more investigations in the layer stack design are required. We present an investigation into the effect of collector spacer thickness and doping profile in the subcollector contact region. The aim is to simultaneously optimize the RF output‐power and cut‐off frequency in triple barrier structures. A series of devices with different collector spacers and two distinct doping profiles are fabricated. We observe a trade‐off between collector spacer thickness and doping profile for either higher output‐power or cut‐off frequency. In addition, we present simulation results from a Non‐Equilibrium Green’s Function solver implemented in Python. Here, we observe a need for accurate determination of the extent of the non‐equilibrium region to achieve simulation results matching the IV measurements.This article is protected by copyright. All rights reserved.

show abstract

Terahertz spectroscopic monitoring and analysis of citrus leaf water status under low temperature stress

Cited by 12 publications

References 50 publications

Magnetized Seeds and Structured Water: Effects on Resilience of Velvet Bean Seedlings (Mucuna pruriens) under Deficit Irrigation

Magnetized Seeds and Structured Water: Effects on Resilience of Velvet Bean Seedlings (Mucuna pruriens) under Deficit Irrigation

Recent Advances in THz Detection of Water

Experimental and Theoretical Investigation of Collector Spacer and Doping Profile on Triple‐Barrier Resonant Tunneling Diodes

Contact Info

Product

Resources

About