Terahertz Imaging Applications in Agriculture and Food Engineering: A Review

2018 ◽  
Vol 61 (2) ◽  
pp. 411-424 ◽  
Author(s):  
Chen Wang ◽  
Jianyuan Qin ◽  
Wendao Xu ◽  
Min Chen ◽  
Lijuan Xie ◽  
...  
Keyword(s):  
Terahertz Spectroscopy ◽  
Terahertz Imaging ◽  
Imaging Systems ◽  
Food Science ◽  
Security Screening ◽  
Food Engineering ◽  
Material Evaluation ◽  
Terahertz Technology ◽  
Agriculture And Food ◽  
Food Safety And Quality

Abstract. Terahertz technology, including terahertz spectroscopy and terahertz imaging, is gaining increasing attention and plays an important role in various fields. With the development of terahertz sources and detectors in recent decades, terahertz imaging has been applied in many fields, including security screening, material evaluation, biomedicine, agriculture, and food science. However, progress has been comparatively slow in applying terahertz imaging to agriculture and food engineering. In this article, some commonly used terahertz imaging systems are summarized, and various applications of terahertz imaging in agriculture and food engineering are reviewed, including food safety and quality inspection, seed inspection, water content evaluation of plant leaves, and others. Challenges and the future outlook of terahertz imaging are also discussed. Keywords: Agriculture, Food, Instrumentation, Seed, Terahertz imaging.

scholarly journals Terahertz Field Confinement in Nonlinear Metamaterials and Near-Field Imaging

Photonics ◽  
2019 ◽  
Vol 6 (1) ◽  
pp. 22 ◽  
Author(s):  
George Keiser ◽  
Pernille Klarskov
Keyword(s):  
Terahertz Radiation ◽  
Terahertz Spectroscopy ◽  
Near Field ◽  
Terahertz Imaging ◽  
Imaging Systems ◽  
Near Field Imaging ◽  
Nonlinear Metamaterials ◽  
Terahertz Devices ◽  
Field Imaging ◽  
Sub Wavelength

This article reviews recent advances in terahertz science and technology that rely on confining the energy of incident terahertz radiation to small, very sub-wavelength sized regions. We focus on two broad areas of application for such field confinement: metamaterial-based nonlinear terahertz devices and terahertz near-field microscopy and spectroscopy techniques. In particular, we focus on field confinement in: terahertz nonlinear absorbers, metamaterial enhanced nonlinear terahertz spectroscopy, and in sub-wavelength terahertz imaging systems.

scholarly journals The role of citizen science in addressing grand challenges in food and agriculture research

2018 ◽  
Vol 285 (1891) ◽  
pp. 20181977 ◽  
Author(s):  
S. F. Ryan ◽  
N. L. Adamson ◽  
A. Aktipis ◽  
L. K. Andersen ◽  
R. Austin ◽  
...  
Keyword(s):  
Urban Communities ◽  
Citizen Science ◽  
Food Systems ◽  
The United States ◽  
Food Science ◽  
Grand Challenges ◽  
Food Research ◽  
Food And Agriculture ◽  
Science Projects ◽  
Agriculture And Food

The power of citizen science to contribute to both science and society is gaining increased recognition, particularly in physics and biology. Although there is a long history of public engagement in agriculture and food science, the term ‘citizen science’ has rarely been applied to these efforts. Similarly, in the emerging field of citizen science, most new citizen science projects do not focus on food or agriculture. Here, we convened thought leaders from a broad range of fields related to citizen science, agriculture, and food science to highlight key opportunities for bridging these overlapping yet disconnected communities/fields and identify ways to leverage their respective strengths. Specifically, we show that (i) citizen science projects are addressing many grand challenges facing our food systems, as outlined by the United States National Institute of Food and Agriculture, as well as broader Sustainable Development Goals set by the United Nations Development Programme, (ii) there exist emerging opportunities and unique challenges for citizen science in agriculture/food research, and (iii) the greatest opportunities for the development of citizen science projects in agriculture and food science will be gained by using the existing infrastructure and tools of Extension programmes and through the engagement of urban communities. Further, we argue there is no better time to foster greater collaboration between these fields given the trend of shrinking Extension programmes, the increasing need to apply innovative solutions to address rising demands on agricultural systems, and the exponential growth of the field of citizen science.

Teaching Food Engineering for Food Science Students

1977 ◽  
Vol 20 (3) ◽  
pp. 0598-0600
Author(s):  
David R. Thompson
Keyword(s):  
Food Science ◽  
Science Students ◽  
Food Engineering

scholarly journals Enhancement of spatial resolution of terahertz imaging systems based on terajet generation by dielectric cube

APL Photonics ◽  
2017 ◽  
Vol 2 (5) ◽  
pp. 056106 ◽  
Author(s):  
Hai Huy Nguyen Pham ◽  
Shintaro Hisatake ◽  
Oleg Vladilenovich Minin ◽  
Tadao Nagatsuma ◽  
Igor Vladilenovich Minin
Keyword(s):  
Spatial Resolution ◽  
Terahertz Imaging ◽  
Imaging Systems

RECENT DEVELOPMENTS OF TERAHERTZ TECHNOLOGY IN BIOMEDICINE

2008 ◽  
Vol 01 (01) ◽  
pp. 29-44 ◽  
Author(s):  
EMMA PICKWELL-MACPHERSON ◽  
SHENGYANG HUANG ◽  
KANIS WAI CHI KAN ◽  
YIWEN SUN ◽  
YUAN TING ZHANG
Keyword(s):  
Cancer Detection ◽  
Biomedical Applications ◽  
Molecular Spectroscopy ◽  
Terahertz Imaging ◽  
Terahertz Technology ◽  
Recent Developments ◽  
Imaging And Spectroscopy ◽  
New Applications ◽  
Made In

Terahertz technology is continually evolving and much progress has been made in recent years. Many new applications are being discovered and new ways to implement terahertz imaging investigated. In this review, we limit our discussion to biomedical applications of terahertz imaging such as cancer detection, genetic sensing and molecular spectroscopy. Our discussion of the development of new terahertz techniques is also focused on those that may accelerate the progress of terahertz imaging and spectroscopy in biomedicine.

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